Construction of a gas station in Kokshetau on the street. Sennoy
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Kazakhstan, North Kazakhstan region, Petropavlovsk. Peter and Paul College of Railway Transport. 2014 By specialty 0810000 "Construction and operation of gas oil and gas stations" Theme of the diploma project: "Construction of gas stations in Kokshetau on the street. Sennoy" Initial data: -RGS- 25 m3 - number of tanks -4 - gasoline density -840 kg/m3 - TRK grade - Topaz - nominal flow rate is 50 min. - nominal filtration fineness is 20 μm; - power of electric motors 1.1 * 2; - main error 0.25%; - overall dimensions 1650 * 550 * 2140. As a result of the development of a diploma project on this topic, the following should be presented: I. Explanatory note: Introduction 1. Process Part 2. Design Part 3. Automation of filling stations 4. Economic Part 5. Health and safety 6. Environmental friendliness of project II. Graphic part: compass 13VD Sheet 1. General plan of filling stations in Kokshetau on the street. Sennoy
5р.Охрана труда и ТБ.doc
1 Process Part
1.1 Classification and general characteristics of filling stations
1.2 Construction of filling stations in Kokshetau on the street. Sennoy
1.3 Brief description of the construction site
1.4 Organization of vertical planning
1.5 Space-planning and structural solutions
1.6 Off-site networks of the built filling station
1.7 Water supply and sewerage of the built filling station
2 Design part
2.1 Process solution and requirement,
presented for equipment
2.2 Calculation and selection of tanks for filling stations in Kokshetau
on Sennaya Street
2.3 Calculation and selection of fuel distribution column
2.4 Construction needs for personnel and temporary
buildings and structures
2.5 Construction demand for energy resources
2.6 Need for basic construction machinery and machinery
3 Automation of gas stations in Kokshetau on the street. Sennoy
3.1 Column control and automation equipment
technological processes. Emergency Response Systems
gas station protection
3.2 NP release control and measurement systems
parameters in tanks
3.3 Application Software
3.4 Gas station emergency protection systems
4 ECONOMIC PART
4.1 Estimate of the cost of gas stations in Kokshetau on the street. Sennoy
4.2 Calculation of the full cost of the administrative building of the filling station
5 Occupational health and safety
5.1 Instruction of the service filling station personnel
5.2 Safety requirements during oil product discharge
5.3 Explosion - fire hazard properties of petroleum products
6 Environmental friendliness of the project
6.1 Sources of environmental pollution,
measures to reduce evaporability of petroleum products
6.2 Causes of Static Electricity
6.3 Reasons for Increasing Electrification
light petroleum products
6.4 Removal of accumulated charges of static electricity
List of literature
THESIS PROJECT ASSIGNMENT
Topic of the diploma project: "Construction of a gas station in Kokshetau on the street. Sennaya "
-RGS- 25 m3 tank
- number of tanks -4
- gasoline density 840 kg/m3
- TRK brand - Topaz
- nominal flow rate is 50 l/min;
- number of distribution cranes 4 pieces.
the nominal filtration fineness is 20 μm;
- power of electric motors 1.1 * 2;
- basic error 0.25%;
- overall dimensions 1650 * 550 * 2140.
As a result of the development of a diploma project on this topic, the following should be presented:
1. Process Part
2. Design part
3. Automation of filling stations
4. Economic part
5. Health and Safety
6. Project Environmental Friendliness
II. Graphic part:
Sheet 1. General plan of the gas station in Kokshetau on the street. Sennoy
Sheet 2. Technological plan of the gas station in Kokshetau on the street. Sennoy
Sheet 3. Layout of tanks and pits for oil discharge
Sheet 4. Installation of the tank in the ground.
Sheet 5. General view of fuel dispenser "TOPAZ - 5011"
Today, not a single car can do without fuel, which is provided by a gas station. A modern car is an example of a non-ecological vehicle. Road transport, on the one hand, consumes oxygen from the atmosphere, and on the other, it emits exhaust gases, crankcase gases, carbon monoxide, lead oxide, thereby affecting the environment, animal and plant world, including humans. Currently, the issue of human safety is very relevant in our country, which includes such sections as labor protection at work and in everyday life and environmental protection. Therefore, the object of studying these problems was a gas station IP.
Gas stations (gas stations) are the most important link in the region's oil production system. They are designed not only for fueling vehicles, but also to additionally sell lubricants, special liquids, spare parts and various accessories for cars, receiving spent oils from owners of individual vehicles, maintenance and washing cars
Petrol station (filling station) - a complex of buildings, structures and equipment designed for filling motor vehicles with petroleum products (gasoline, diesel fuel), selling oils and lubricants packed in small containers. Filling stations are divided into stationary and mobile ones on the chassis of a car or trailer. The construction of stationary type filling stations should be carried out mainly according to standard projects. Currently, there are standard projects of public gas stations for 500, 750 and 1000 refills per day, depending on the number of fuel dispensers and reservoirs for oil products.
The construction of a gas station in Kokshetau on Sennaya Street was developed by specialized organizations in accordance with the current regulatory and technical documentation.
A lot of attention in the diploma project is paid to modern automated systems for supporting technological processes, which have a significant impact on the efficiency of existing gas stations, which is taken into account when designing and building new ones.
1.4 Organization of vertical planning
The adopted decisions on vertical layout ensure normal performance of all technological operations, construction (with GP3 sheet).
The territory of the designed section is planned and linked by the existing road and the existing terrain. The missing soil is brought from the quarry.
Surface water removal from the territory is carried out to low relief points with the connection of planning elevations of transport routes with floor elevations of designed buildings and structures, as well as with the existing situation. To bypass surface water through the a/road embankment, two pipes are provided. Surface water removal is carried out by reduced relief points.
1.4.1 Improvement and landscaping of the built filling station
To ensure normal sanitary and hygienic conditions for the work of the territory, landscaping and landscaping measures are provided.
Lawns are arranged on free areas from development and coatings, shrub planting is provided. Lawns are arranged parterre type sown with seeds of perennial herbs. Grasses are sown in prepared areas with addition of vegetable layer with thickness of 0.2m. The recommended variety of shrub is hawthorn.
The following installation is provided on the territory of the filling station:
fire board with equipment.
The location of green spaces will be specified in place. The site is enclosed by a metal fence, 2.0m high.
1.5 Space-planning and structural solutions
The architectural and construction part of the project provides for the construction of the following structures:
control room with canopy;
tanks for gasoline tanks. 25mz;
tank for diesel fuel, tank. 25mz;
well for oil products draining;
light oil filling site;
petrol filling islands;
diesel fuel filling island;
unloading of the tank. 15mz;
wastewater treatment facilities;
cleaning room for 2 points;
The control room, the canopy above the islands, the information stand, the turning indicator are made according to the drawings of the Turkish company SISTEM REKLAMCIL K.S "Merkez man. Osmanli cad. 224.sok N0.5 and consist of complete factory readiness units.
The foundations for the control room, canopy, information stand and turn indicators are made of monolithic reinforced concrete of the glass type.
Tanks for diesel fuel and for gasoline tanks. 25.0 m3 are
steel tank, horizontal, cylindrical for storage of oil products with capacity of 25.0m3 according to standard design 7041161 83 for underground installation in dry soils.
Tank with flat bottom, wall of cloth. Flat bottom of foxes 4 mm thick. The wall is made by folding from foxes with a thickness of 4 mm. The tank structures are made of steel grade C245 and C2 as per GOST 2777288 *. All welded joints of the cylindrical part are taken end-to-end. All joints to be connected must be solid and tight-strong. Be tank is located at a depth of 0.8 m. from the ground surface.
Tanks are installed in reinforced concrete pallet with inspection pipes providing visual inspection of possible leaks of stored oil product. The tanks are installed in a tray on a sand cushion with a thickness of a layer of sand between the lower generatrix of the tank and the bottom of the tray of 350mm and are filled with compacted sand to the entire height of the tray.
A process metal well measuring 1.8x1.6 m is arranged above the tank hatch, covered by a flap metal cover.
Oil product drain pit is made of klB12 5 concrete with dimensions of 2.5x1.5m, depth 0.550m. from the ground surface. The well is covered with a metal cover.
The site for filling light oil products is designed in the form of two islands for gasoline with dimensions of 5.0x1.1 m. And one island for diesel fuel with dimensions of 3.0x2 1m., from concrete
On the islands there are well foundations for the installation of fuel dispensers.
The ejection tank of 15mZ is designed as per p. 81542.86 "Housing collection tank of 15mZ" and is a reinforced concrete tank buried in the ground in a rectangular plan with dimensions of 3.0x3.0m, with manholes for intake of drains and ventilation shafts with deflectors for ventilation of the tank.
Treatment facilities of industrial-rain effluents are designed as per p.50368.86 and represent underground wells from prefabricated iron
zonal circular rings with plan dimensions of 2.0m and 1.5m.
Diesel generator metal modular unit, which is installed on a foundation of concrete reinforced slab with plan dimensions of 2.45x1.05 m., stratified. 400mm and 0.2 m above the ground
Transformer substation is a metal modular unit, which is installed on a foundation of concrete reinforced slab with plan dimensions of 2.0x3.35 m., stratified. 400 mm and 0.2 m high above the surface of the earth
The restroom for the 2 point is equipped with dimensions in plan 1 .5x2 0m and height, the bottom of the floor slabs 1.8... 2 .0m. Walls of ordinary clay brick on M25 cement sand mortar. Floor - prefabricated reinforced concrete slabs, latrine pit floor - reinforced concrete monolithic slab. The roof is soft, coiled. The pit is made of monolithic sulphate-resistant concrete. Doors - metal plastic.
1.5.1 Technological solutions for the construction of gas stations in Kokshetau on the street. Sennoy
According to the terms of reference, the construction of a gas station in Kokshetau on Sennaya Street was completed. The built filling station is designed for receiving, storing in tanks and dispensing 4 grades of light oil products.
The designed capacity is - 250 gas stations per day.
Operating mode - around the clock, 365 days a year.
Delivery of fuel to the gas station is provided by road. Filling of tanks with fuel is performed without suspension of filling stations operation. During fuel drain do not refuel the vehicles from the filled tank
According to the assignment for the construction, the following facilities are provided for the performance of technological operations for the reception, storage and release of petroleum products at the gas station site:
1 25m3 diesel fuel tank;
3 gasoline tanks (Ai95, Ai-93, A80) with a capacity of 25m3;
three gas islands;
well for oil products discharge.
Explosion hazard class of tanks and islands for installation of fuel dispensers - B-1 g.
Tight discharge of oil products from tank trucks to tanks is carried out using MS-1 type discharge quick-release couplings. To prevent the ingress of mechanical impurities into the tanks, the design provides for the installation of drain filters of the AF type. Drain equipment is installed in the concrete pit. For collecting accidentally spilled oil products in a well it is provided priyamok 400х400х400 (mm) Cleaning of a priyamk is provided manually in mobile capacity. From the well, the drained oil products come through pipelines laid underground with a slope of ≥ 0.002 towards the tanks.
To reduce emissions of petroleum products vapors into the atmosphere, the project provides a pipeline for recirculating petroleum products vapors, which ensures the return of the steam-air mixture from the filled tank to the tank truck during the discharge of gasoline and the return of the steam-air mixture to the tanks during the filling of gasoline into vehicles. For this purpose in the well for discharge of oil products there is a valve of ball and rubber-fabric hose, with the help of which the vapour recirculation pipeline is connected to the connector on the cover of the tanker truck neck, and in fuel dispenser columns during gasoline release there is a gas return system. For the purpose of explosion and fire safety, fire barriers of OP50 type are provided on the steam recirculation pipeline in wells on tanks. Steam recirculation pipeline DN 50mm is laid underground with slope not less than 0.002 towards tanks.
25m3 tanks for storage of light petroleum products
adopted for the model draft 7041161.83. Tank installation accepted
underground in reinforced concrete casing. The tanks shall be installed with a slope of the bottom 0.004 towards the intake valve of the fuel dispenser.
Tanks with a capacity of 25m3 are equipped with intake nozzles, Red Jacket submersible pumps, breathing and cleaning devices. The equipment is mounted on the covers of tank necks in metal wells of rectangular shape. The well body is rigidly attached to the tank body. To protect against corrosion, the surface of the tank and the well is covered with reinforced anti-corrosion insulation in accordance with current standards. In order to protect against static electric charges and wandering currents, tanks are equipped with special grounding
Cranes are provided on receiving pipelines in wells on tanks for gasoline and diesel fuel. The lower end of the receiving branch pipe is cut at an angle of 45 ° and is installed at a height of 100 mm from the bottom of the tank. This provides a pour of oil under the bed and reduces hydrocarbon emissions by 70%.
Fuel is supplied from tanks to fuel dispenser columns by means of submersible pumps with telescopically extending branch pipes installed on covers of tank necks. The pressure branch pipe of the submersible pump is attached to the Du50 pipeline using a flexible pipe and a Dou50 ball valve. For depletion of the pressure head pipeline the drain tube of Du25 with the shut-off valve is provided in its lower point.
Pipelines DN 50mm are laid underground with slope not less than 0.002 from columns towards reservoirs under roadway of roads. Pipelines are laid in tray channels.
Cleaning of tanks is performed by means of grinding pipe Dn 40mm, the lower end of which is installed at a height of 15mm from the tank bottom
The fuel shall be measured by means of a level gauge installed in the level measuring nozzle on the second hatch of the tank or manually by means of
metrostock through the measuring hatch LZ150, which is installed on the measuring hatch branch pipe. Measuring hatch branch pipes are equipped with Du50mm connectors for connection to breathing systems, on vertical sections of which breathing valves of SMDK100 type are installed at a height of 2.5m from the ground, combined with fire barriers.
For earthing capability, the tanks are equipped with 2 terminals for connection to the external earthing loop
To pour gasoline into vehicles, the project provides for two
filling islands, on each of which one is installed
fuel dispenser six-arm column Q500 of the company "TOPAZ," designed to fill three types of fuel (two cars can be served at the same time) The column is equipped with a gas intake system and a hose return system.
For the filling of diesel fuel in vehicles is provided
one filling island, on which one is installed
Fuel dispenser two-arm column Q300 of the company "TOPAZ," designed for simultaneous filling of two vehicles.
Connection of fuel dispensers to fuel supply pipelines is accepted through flexible pipes and safety valves
Connection of fuel dispenser columns to fuel supply pipelines is accepted through flexible pipes and safety valves. Safety valves are designed to stop fuel supply in case of emergency failure of fuel dispenser column.
Steel pipes are accepted as per GOST 1070491, GOST 326275 .
Above-ground sections of pipelines and valves are protected against atmospheric corrosion by paint coatings applied to defatted surface cleaned from rust and scale. Protection of underground pipelines against corrosion is carried out according to GOST 9.60289 by insulation of a very reinforced type of the following composition: bitumen primer, bitumen-rubber mastic 1 mm thick in 3 layers with a reinforcing winding made of glass cloth between them, external winding 1 layer.
Pipelines laid under the roadway in reinforced concrete trays on a sand pad are painted with a "kuzbaslak" in 2 layers.
Manufacture, install, test and clean the internal surface of process pipelines according to SNiP RK 3 05092002 "Process Equipment and Process Pipelines" and SN 52780 "Instructions for Designing Process Steel Pipelines Ru up to 10MPa."
According to SN RK B.2.31299 "Process Design Standards Petrol Stations of Stationary Type" the gas station site is equipped with primary fire extinguishing equipment at its commissioning
The project provides for measures and equipment to reduce the fire hazard of gas stations:
breathing valves combined with fire retardants and installed at a height of 2.5m;
OP50 type fire barriers installed on the vapour recirculation pipeline;
tight discharge of oil products through MS coupling;
lightning protection of plants and grounding of process equipment and process pipelines in accordance with the "Electrical Installations Design Rules" (PUE).
According to item 7.2 of SNiP RK 3.05.092002 "Process equipment and process pipelines" control of welded joints by non-destructive methods as a percentage of the total number of production joints welded by each welder shall be 2% for pipelines of category III, and 1% for pipelines of category IV, but at least one joint.
Inspection of welded joints of steel pipelines by radiographic or ultrasonic method should be carried out after elimination of defects detected by external inspection and measurements.
Installation, operation and maintenance of process equipment shall be carried out in accordance with passports, technical descriptions and operating instructions.
The process part of the project is developed on the basis and in accordance with the following regulatory technical documentation:
Construction Norms and Regulations of PK 1.02012001 "The instruction about an order of development, coordination, a statement and structure of the project documentation on construction of the enterprises, buildings and constructions;
SN RK 3.05122001 "Process Design Standards. Stationary petrol stations "
RD-112-RK-002-94 "Rules of technical operation of stationary, container, mobile filling stations";
SN RK 3.02152003 "Process Design Standards" Oil and Oil Products Warehouses, "
SNiP 2.11.0393 "Oil and oil products warehouses Fire safety standards,"
SN 52780 "Instructions for designing process steel pipelines Ru up to 10 MPa";
SNiP RK 3.05092002 "Process equipment and process systems"
VSN 01188 "Cavity cleaning and testing."
PPBS-02-95 "Fire Safety Rules for Operation of RK Oil Production Facilities";
PPB RK 0897 "Fire safety rules in RK";
"Regulations on safety and industrial sanitation in the operation of oil depots and gas stations."
1.6 Off-site networks of the built filling station
External connection of the constructed TP is made, according to Specifications, by tap No. 1 from VL10kV, support No. 67, the substation departing from cell No. 17 RU10kV 110/35/10kv Sergeevka, AC35 wire suspended on the support executed on the basis of reinforced concrete racks of C1053,5 and CHB713 type. Types of supports are adopted according to standard designs 3.407.1143 and 3.407.1164.
An OPS type branch device is provided on the stripping support, then an end anchor support with a disconnector of the RLDN10kv type is installed. When connecting the designed substation, an end support with the RLND10kV disconnector is also installed. All complex supports are grounded.
1.6.1 On-site networks of the built filling station
Power supply of the facility is made from RP 0.4kV of the designed transformer substation of the KTPK type (manufactured by JSC EnergoProm Aktobe) and Diesel Power Plant - DES (manufacturer at the discretion of the Customer).
The Control Room and the DPS Automation Panel are powered from the designed KTPK from which the diesel generator must periodically warm up. Other loadings receive food from a case 1Shch Operator.
For providing uninterruptible power supply of technological pumps, by means of the panel of switching of loadings (PPN - production of WILSON), at disappearance of tension on board 1Shch from the main board Operator, the PPN panel will switch board 1Shch to food from Diesel power plant.
On-site networks are made with cables laid in trenches of T9 and T1 type. At the points of intersection with roads by underground communications and in the territory defined as category B1g for explosion protection, cables are laid in asbestos-cement and metal ordinary pipes (GOST 326275).
External lighting is made of RKU type lamps installed on posts with a height of 10 m. The number of lamps is accepted according to the calculation of illumination by specific power and taking into account RK SNiP standards. Power consumers are plumbing and technological equipment .
As a switchboard board 1Shch of the YaRN 8501 type executed by the NVA plant of Almaty on element base SIEMENS is accepted
Starting equipment for connection - boxes of Ya5000, NPS, YAVS type for power supply of process pumps, columns and external lighting of the filling station area. Group networks are made by cables with copper conductors of design section laid on brackets along the wall and in cables.
To protect people from electric shock, in case of insulation damage, the project provides for protective grounding (zeroing) in
combination with protective disconnection, special third core cable in single-phase networks and special fifth core cable in three-phase networks starting from the busbar PE of the lead-in panel to the last electric receiver.
The grounding circuit made in this design shall be connected to the main grounding circuit of the Control Room.
3.2.1 NP parameters measurement system in tanks
Another important component of the common system, which allows checking changes in the number of NP without dismantling the equipment, - the system of measurement of parameters of NP in tanks at the heart of which work the volume and mass method of determination of amount of oil products in tanks in accordance with GOST 2697686Shch the System of measurement is put defines numerical value of mass of oil products in tanks of 5 - 100% of the maximum height of a column of the measured oil product (without height of a column of commercial water).
If necessary, the measurement system allows you to compile calibration characteristics of tanks.
The NP measurement system can additionally
be equipped with information display device and remote control unit. These devices are purchased if you intend to use the system measured offline.
Main technical characteristics of the measurement system:
NP level measurement range in the tank 0.3... 3 m;
measurement error of the level ± 1 mm;
density measurement range 690... 890kg/m3;
density measurement error ± 1.5 kg/m3;
temperature measurement range 40○S... + 50○ С;
temperature measurement error ± 0,5○ С;
error of mass calculation ≤ 1%.
The measurement system software provides the following functions:
measurement of parameters of light NP in tanks - temperature, level and density;
calculation of average values of temperature and density;
calculation of NP volume and mass in tanks;
remote control of measurement information display;
sound alarm of maximum permissible values (level of commercial water, height of NP burnout, etc.);
updating calibration tables;
calibration of installed tanks;
verification of sensors equipment without its removal.
3.3 Application Software
The system software is divided into two main groups of modules: a set of modules of the processing center and a set of modules installed on the A3K, and fully provide control of all automated processes at the filling station:
data exchange between the processing center and the CAS administrators;
maintenance of OBD on system directories, fuel types, prices for all filling stations, as well as data on customers and their accounts;
administration of processing center operators and circuit breaker administrators;
opening the shift;
reception of fuel with entry of specific information about it;
recording of fuel issue and receipt of cash and non-cash payments;
conducting the required cash transactions;
control of fuel distribution equipment;
input of information on distribution valves and tanks "
working with cards (including issuing contact smartcards, credit cards, etc.);
recording of shift closing fact;
Create a replacement fuel sales report and fiscal report
generation of various types of reports, etc.
For interaction of application programs with final circuit breaker equipment, special objects for column and tank control are built into applications. These modules access the equipment server responsible for controlling the management of the target equipment. The equipment server can be installed both on the computer of the circuit breaker operator and on a separate computer. In the latter case, it is possible to create several jobs for gas station operators
For example, the Gas Station Operator module, which performs card receiving functions in addition to the functions of the cash register, also controls the delivery of fuel on the columns and distribution valves, and the shift opening/closing modules automatically receive data on the temperature and density of the fuel supply in the tanks during the opening and closing of the shift at the gas station
3.4 Gas station emergency protection systems
Fuel overflow prevention systems during filling of tanks and automatic leak control systems of tanks, which significantly increase the level of fire and environmental safety of gas stations of any type.
When developing these systems, modern achievements in the field of ensuring fire and environmental safety of gas stations were taken into account, which allows when using them at reconstructed and newly built gas stations, as well as during the production of technological systems for gas stations, to ensure the required level of safety of technological processes for receiving, storing and delivering fuel to consumers at gas stations.
The block construction of safety systems allows you to take into account the specific features of the customer's equipment, which flies around their practical application.
Fuel overflow prevention systems for filling tanks are available in two versions, which, by order of the consumer, can additionally also perform remote fuel level measurement functions in these tanks. One of the modifications provides warning about reaching the nominal level of filling of tanks by means of sound and light signals and automatic blocking of overfilling of tanks when the limit level of their filling is reached by means of disconnection of pumps or actuation of shut-off devices with remote control. Guaranteed performance of system functions is achieved in accordance with I by means of constant automatic check of its serviceability. In case of system failure, the fuel supply to the tank is automatically blocked until the fault is eliminated.
A distinctive feature of another modification of the system is pol-
duplication of its elements at simultaneous execution of all functional capabilities of the first modification. This allows safe operation of the filling stations even in case of failure of one of the subsystems before regular scheduled operations, during which faults are eliminated. The use of this system modification eliminates the need for long-term decommissioning of filling stations for the corresponding repair work.
Systems of continuous automatic leak check of tanks are available of two modifications:
periodic automatic leak check of single-wall tanks;
continuous automatic leak check of double-walled tanks.
Each of the system modifications has a self-test function
serviceability and can be performed at the request of the customer both with and without duplication of all its elements.
Systems of periodic automatic tightness control of single-wall tanks allow for automatic detection of fuel leakage from the tank during its storage, that is, in the absence of operations to fill tanks or to supply fuel to consumers and to provide warning sound and light signals, including displaying information on the display indicating the emergency tank on the gas station diagram, and block the supply of fuel to and from the emergency tank to consumers, preventing a possible emergency situation.
These systems make it possible to replace the equipment currently used at the filling stations for similar purposes (mines for sampling groundwater for the presence of petroleum products in it and devices for this analysis) with a cheaper one, as well as to automate these works while improving the level of environmental and fire safety by increasing the frequency of inspections. At the request of the consumer, these systems can additionally perform functions of preventing overflow of fuel when filling tanks, as well as remote measurement of fuel level in them.
During the operation of filling tanks with gravity, the gas station operator switches the system to the fuel level control mode or to the overflow prevention mode.
After completion of the tank filling, the operator activates
tightness control mode. When using the system about
overflow prevention function switching to control mode
tightness of the tank is performed automatically. Then automatic change-over of the system operation modes is performed at switching on and off of TRC. When filling tanks by means of pumps, all switching of operating modes of systems can be performed completely in automatic mode.
By order of the consumer all necessary information on the system operation
can be displayed with its connection to the filling station process diagram.
Systems for continuous automatic tightness control of double-walled tanks are designed for tanks whose interwall space is filled with liquid, for example, tosol.
These systems allow you to automatically detect the depressurization of the tank in all modes of its operation: storage, reception and discharge of petroleum products from it. In case of detection of tank depressurization, the system provides warning sound and light signals (including display of information with indication of emergency tank on the circuit of filling station), as well as automatic blocking of supply to the emergency tank and delivery of fuel from it, preventing possible emergency situation. Systems make it possible to practically prevent fuel leakage into the environment during depressurization of double-walled tanks due to their wear or violation of technological parameters of operation. The system performs constant automatic control of the liquid level in the expansion tank installed above the tank and communicating with its interwall space. The system has two trigger thresholds:
a warning corresponding to the change in the level of the liquid in the expansion tank due to a change in the ambient temperature and indicating the need to correct the thresholds of the system operation (when the level of the liquid increases or decreases to a value corresponding to a change in its density) or the beginning of leakage of the controlled liquid as a result of the appearance of non-density in the walls or welds of the tank (when the level of tosol continues to decrease at a steady temperature);
blocking, corresponding to the liquid level in the expansion tank equal to the liquid level at the absolute minimum ambient temperature in the operation area (as per SNiP 2.01.0182), and indicating depressurization of the tank.
When the warning response threshold is reached, the system provides sound and light signals, as well as information on further change of the liquid level in the expansion tank, necessary for making decisions either on correction of the response thresholds or on stopping the operation of the gas station for repair work.
A significant advantage of the proposed system is the possibility of automatically setting the thresholds of its operation ("automatic zero setting"), by means of which this operation is carried out by pressing the corresponding button, which greatly facilitates its use at gas stations (especially with ground or above-ground location of tanks).
By order of consumers, it is possible to supply systems with automatic adjustment of its operating thresholds depending on the change in ambient temperature (individually for each tank, taking into account its place of operation).
When the blocking actuation threshold is reached, the system shuts off the power supply to the TRC and pumps or activates remote shut-off devices during the operation of filling the tanks with gravity.
Monitoring system for filling stations developed by EBW, VEEDERROOT, PETROVEND (USA) and HECTRONIC AG (Switzerland), supplied by GIKON LLP (Moscow)
operational control over the level of oil products and commodity water in the tanks;
monitoring the presence of liquid between the double walls of the tanks;
collection and processing of fuel receipt/consumption data in tanks;
printing both on request and automatically on-line and summary tank information, test test results;
output of control signals to external device, for example, to pump of pumped-in water;
monitoring by means of sensors for absence of fuel leaks from tanks, fuel lines and TRC;
alarming at high/low level of oil product, high level of product water;
testing and serviceability check of the whole system, calibration of all filling station equipment;
printing of alarm information.
Main technical characteristics of the monitoring system:
Oil product level measurement accuracy
and commercial water ± 0.025 mm, accuracy of measurement of liquid flow rate
from tank from 0,378 l/h to 0.8 l/h (depending on the type of level meter), measuring range from 1.3 m to 18 m, at that standard dimensions of level meters from 1.3 m to 4 m, other dimensions by special order, operating temperature range: for sensors 42- + 54 ° С, for control console from 0 to + 50 ° С.
Current loop interface, RS - 2232С
The number of external devices connected to one control console is determined by the type of APSONN Warning Alarm and the set of sensors, the composition of which is determined jointly by the Manufacturer and the Customer.
Automation of gas stations in KOKSHETAU ON SENNAYA STREET
3.2 NP Release Control and Tank Measurement Systems
The NP release control system is a functionally completed system. It includes various components that not only allow you to control the release of NP at small gas stations, but also capable of integrating into large systems and networks of gas stations. Moreover, there are options for connecting to the system both intelligent fuel transfer columns (TRC) such as Wayne Dresser, Gilbarco, Zaltckoten, Tokheim, 2NAPA6 and 2.
All NP release control processes and registration of their results are part of the functions of the "ST95F computer cash terminal" cash register machine
The release control system software provides the following functions:
registration of the operator;
TPC selection by the operator;
setting the filling dose both in cash and in liter form;
automatic settlement of delivery with a specific amount;
calculation of fuelling cost;
printing of checks on cash registers (KKM);
visual tracking of NP release process with operating TRC;
receipt of operational certificates on the state of the shopping center (total issued, meters, etc.), number of NP in tanks, prices for NP, etc.;
possibility of online reconfiguration of connected TRC;
logging of operations carried out by the gas station operator;
generation of replaceable reports.
APSONN alarm panel performs the following:
1. Supply of light and sound signals in case of emergency at the filling station, generated by signals transmitted to APSONN panel from special sensors and monitoring systems of AUTO STIK, OPTILEVEL, "STRINGS" type, etc. Light signals are supplied using light indicators located on the front panel of the panel.
Sound signals are transmitted using two electric detectors, one of which is located inside the panel, the other is located, outside, on the territory of the filling station.
Control of the pump transferring fuel from the fuel truck to the tanks. Start and stop of the pump, which transfers fuel to the tanks, is performed by means of "START" and "STOP" buttons, located on the front panel of the panel, and "FUEL INTAKE" selector switch.
Disconnection of power supply of TRC pumps and pump transferring fuel from fuel truck to tanks in case of emergency. Disconnection of power supply of TRC pumps and pump, which transfers fuel from fuel truck to tanks, is performed by means of panel and power supply board by signals from sensors.
Sound alarm in case of a dangerous situation occurring in the territory of the filling station and requiring immediate evacuation of people and vehicles from the territory of the filling station.
Parameter monitoring, sound and light alarm
1. The alarm light is transmitted in the following situations:
if the nominal level of fuel vapour concentration in the process shafts of the tanks is exceeded, which indicates the occurrence of an explosive situation;
in case of fuel vapour pressure drop in one of tanks below
the minimum permissible level, which indicates a malfunction of the corresponding respiratory valve;
if the fuel vapor pressure in one of the tanks exceeds the permissible level, which indicates a malfunction of the corresponding respiratory valve;
if the level of tosol in each individual expansion tank connected to the inter-wall space of the tanks falls below the minimum level, which indicates a violation of the tightness of the shells of this tank;
at filling of tanks with fuel more than 90% of its total volume;
at filling of tanks with fuel over 95% of its total volume.
In all listed situations, simultaneously with the supply of light signals, sound signals are transmitted inside the operator's room and on the territory of the gas station. In all listed situations, power supply to the TRC pumps is stopped (except for tank filling).
2. When fuel level in each tank decreases to
The corresponding light signal (unaccompanied by the audio signal) is supplied at the low level.
3. In case of an emergency at the filling station (unrelated to deviation of controlled parameters from the nominal values) requiring the rapid removal of people and vehicles from the filling station territory, the operator must press the button
"Alarm check," which will provide an external audio alarm.