• RU
  • icon Waiting For Moderation: 40
Menu

Automatic installation of powder NPP

  • Added: 14.08.2014
  • Size: 938 KB
  • Downloads: 1
Find out how to download this material
Press if you don't see images

Description

Cryogenic car refueling station. Process part. Moscow 2002

Project's Content

Name Size
icon file_160.zip
938 KB
icon file_160
icon CRYOGAS_STATION
icon HELIYMASH_COMPRES_STANDARD.dwg
69 KB
icon HELIYMASH_TECHNOL_typical.dwg
54 KB
icon PP_CryoAZS.doc
961 KB
icon special_type.dwg
569 KB

Additional information

Contents

CONTENTS

1. General part

2. Purpose, basic technical data, completeness

WFP-100 powder fire extinguishing module.

3. Description and operation of the WFP-100 module.

4. General provisions

5. Security measures

6. Preparing for Use

7. Maintenance

8. Calculation of quantity of powder fire extinguishing modules

9. Power supply and earthing

APPLICATIONS. Assignment to the Customer

Object: Cryogenic Car Refueling Station

(Cryo-gas station)

WORKING PROJECT

AUTOMATIC POWDER FIRE EXTINGUISHING UNIT

General part

The development of a working project for the creation of an automatic powder fire extinguishing unit (AUPP) of Cryo-Gas Station (process part) was carried out on the basis of Contract N _____ from ______ according to the Customer's initial data.

Compressor and process compartment compartments shall be protected. Class of an explosive zone according to PUE of a compartment of the compressor and technological office V1a.

The engine compartment room is non-explosive and non-fire hazardous.

Modular type AUPP, fire extinguishing agent - powder.

The following regulatory documents are used in the design:

GOST R 5109197. Powder fire extinguishing units are automatic. Types and basic parameters.

NPB8801. Fire fighting and alarm systems. Design Codes and Regulations.

NPB11099. List of buildings, structures, premises and equipment to be protected by automatic fire fighting and detection units.

PUE-98. Electrical Installation Rules.

SNiP 2.08.0289. Public buildings and structures.

SNiP 3.05.0584. Process equipment and process pipelines.

PPB0198. Fire safety rules in the Russian Federation.

RD 25.95390. Automatic fire extinguishing, fire and fire alarm system. Symbols and schematic graphical links.

RD 25.96490. System for maintenance and repair of automatic fire extinguishing, smoke removal, fire and fire alarm systems. Organization and procedure of works.

RD 78.14593. Systems and complexes of security, fire and fire alarm. Rules for production and acceptance of works.

VSN 25.09.6785. Rules for production and acceptance of works. Automatic fire extinguishing units.

Operating manual MPP100.000-07RE.

AUPP is made on the basis of powder modules MPP100.07

TU 48540051177 6979-01. Fire Safety Certificate NSPB.RU.UP001.V02372, Compliance Certificate NPOCC.RU.B02.N01261. Explosion Protection Certificate CS RE IGD N99.S157 (explosion protection marking 2ExdIICT3X).

PURPOSE, MAIN TECHNICAL DATA, COMPLETENESS OF POWDER FIRE EXTINGUISHING MODULE MPP100.07

The full name of the module is WFP (N) 10007KD2BSGUH2TU 48540051177697901.

Module Purpose:

2.2.1. MPP10007 is designed to extinguish class A fires (combustion of solid substances), B (burning of liquid substances), C (burning of gaseous substances) according to GOST 2733187, as well as electrical equipment under voltage depending on the grade of fire extinguishing powder used, and are used in automatic modular powder extinguishing installations for the protection of industrial, storage and domestic premises both of individual fire hazardous areas and the entire area or volume of the protected room.

2.2.2. Modules are not designed to extinguish sunbathing of substances whose combustion can occur without air access, as well as burning metals and organometallic compounds.

2.2.3. The modules are also intended for use in hazardous areas of premises and outdoor installations according to Chapter 7.3 "Installations in explosive areas" of the "Rules for the arrangement of electrical installations" (PUE98) and other regulatory documents regulating the use of electrical equipment in explosive conditions.

Explosion protection marking - 2ExdIICT3 X

Basic Technical Data:

Table 1

Parameter name

Parameter value

1 Module fire extinguishing capacity:

a) for the fire source of class B:

- protected area, m2, not more than

- protected volume, m3, maximum

- maximum rank of class B fire source

b) for fire source of class A, except for PSB-3M powder

- protected area, m2, not less than

- protected volume, m3, not less than

Description and operation of module mp100.07

The module consists of a housing for storage of fire-extinguishing powder pos. 3 and operating gas source (cylinder) pos. 9 with opening unit, pos. 7.

At actuation of starting element pos. 6 creates the pressure in the powder unit opening unit necessary to break the membrane in the working gas cylinder. Starting membrane pos. 10 is intended to create the required pressure in the housing of the powder unit necessary for ejecting the fire extinguishing powder into the distribution pipe pos. 1.

In case of fire, electric pulse is supplied to the starting device, after which the membrane is opened, and working gas is supplied from the bottle through the fluffer pos. 5 (refer to Figure 1) enters the housing, pos. 3 modules.

After increasing the pressure in the housing to the operating value, the membrane is opened and the fire-extinguishing powder in a fluidized state enters the distribution pipeline and then through the sprayers pos. 2 per protected area (in the protected area).

In order to ensure safety, when the pressure in the housing exceeds the working one, the powder unit is equipped with a safety valve, item 4 .

The main mode of operation of the module is automatic, when the electrical signal for actuation comes from the facility fire alarm unit.

Actuation of the plant can also be carried out from the manual remote starting device of the URP7.

General provisions

4.1. Installation and maintenance of the module on the site should be carried out in accordance with the requirements of GOST 12.4.00983 SSBT "Fire equipment for object protection. Basic views, accommodation and maintenance. "

4.2. Installation of the module and distribution piping on site, electrical connection of the module and manual start-up device shall be carried out in accordance with this design.

4.3. Maintenance of the module as part of the facility fire protection system (installation, charging (recharging) with fire extinguishing powder and working gas before commissioning and after actuation, monitoring of the electrical start-up system, maintenance, etc.) shall be carried out only by the manufacturer or specialized organizations with the appropriate license.

Security measures

5.1. The module shall be operated in compliance with the safety requirements of PUE 98.

5.2. Persons approved for operation of the module must study the design of the module, the manual start-up device URP7, the content of the OM on the module, instructional and prohibition inscriptions applied on the module housing and on the opening unit.

5.3. Install the powder unit and URP7 article in places that exclude the possibility of mechanical damage and direct sunlight ingress on them, as well as at a distance from heating devices:

- not less than 1 m - for powder unit;

- not less than 1.5 m - for product URP7.

5.4. The manual start-up device shall be sealed.

5.5. DO NOT:

PERFORM MAINTENANCE OF THE MODULE WITH AUTOMATIC STARTING SYSTEM ON;

BREAK SEAL, DISASSEMBLE PARTS OF EXPLOSION-PROOF SHELL WITHOUT DISCONNECTING MODULE FROM ELECTRICAL STARTING SYSTEM;

DISASSEMBLE THE ARTICLE URP7, CORRECT THE APPARENT DEFECTS OF THE ARTICLE;

OPERATE THE UNIT AFTER THE EXPIRATION OF THE REEXAMINATION PERIOD OF THE HOUSING AND THE WORKING GAS BOTTLE

Preparing for Use

6.1. The modules shall be placed in protected rooms.

6.2. Assemble and connect the distribution pipe with sprayers to the module housing in accordance with Figures 1, 3a and 3b, taking into account the following requirements:

- length of Du 50 supply pipeline is not more than 10 m;

for pipelines use steel water and gas pipes as per GOST 326275;

the pipeline shall be laid with a slope of at least 1:100 towards the sprayers;

distance from the nozzles to the attachment unit of the corresponding pipeline is not more than 0.5 m;

distance between pipe attachment elements must be not more than 3 m.

ATTENTION: The orientation of the nozzles must correspond to the position according to view A of Figure 3a.

6.3. Installation of the powder fire extinguishing module is recommended in the following sequence: preparatory work, measurements of the protected room, binding and installation of the module.

6.4. Wires and cables shall be laid in accordance with PUE, NPB 8801.

6.5. Charge the module with fire-extinguishing powder in the amount specified in Table 2.

6.6. Attach to the housing, pos. 1 of powder unit opening unit launcher pos. 2 and gasket pos. 3, before that remove the temporary blanking from the connector of the opening unit.

6.7. When assembling the electrical starting system of the module on the site, be guided by the following requirements:

a) ATTENTION: CHECK THE QUALITY OF ELECTRICAL INSTALLATION WITH THE DEVICE PROVIDING CONTROL CURRENT IN THE STARTING DEVICE CIRCUIT NOT MORE THAN 0.05 A, MONITORING DURATION - NOT MORE THAN 5 MIN.

b) ATTENTION: WHEN ASSEMBLING THE ELECTRICAL CIRCUIT, OBSERVE THE POLARITY OF ELECTRICAL LEADS SPECIFIED ON THE PRODUCT OF URP7;

c) the resistance of the supply lines shall not reduce the current in the circuit below the value given in item 11 of Table 1 and guarantee the actuation of the starting device.

Maintenance

7.1 To maintain the module operability after its commissioning, the following types of maintenance (maintenance) are provided:

daily maintenance (TO-1);

maintenance performed every 6 months (TO-2);

Maintenance performed every 4 years (TO-3).

It is not allowed to clutter the approaches to the manual starting device and to the powder unit.

7.4 Works on TO-2, TO-3 are carried out by a specialized organization.

7.5 Stock of fire extinguishing powder shall be stored in manufacturer's package in dry, covered, ventilated room at temperature from minus 50 to plus 50 ° С

Calculation of quantity of powder fire extinguishing modules

Power supply and earthing

9.1. The fire alarm system shall have category I power supply according to PUE. If it is impossible to supply electric receivers from two independent sources, it is allowed to supply them from one source: from different transformers of two-transformer or from two nearby single-transformer substations connected to different supply lines laid along different routes with an automatic reserve input device.

9.2. Earthing of modules tanks shall be performed by wire with copper core section not less than 1.5 mm2. Connect all grounding wires to the common grounding circuit of the building, refer to RD 78.14593. Operation of the device should be carried out in accordance with the "Rules for technical operation of electrical installations by the consumer" and "Intersectoral rules for labor protection (safety rules) during operation of electrical installations," put into effect with the 01.02.2001 of the State Energy Supervision.

Application

Task

for laying of fire extinguishing modules starting circuits

Object: Cryo-Gas Station

Technical Requirements for Laying of Fire Extinguishing Modules Starting Circuits

Lay fire extinguishing modules starting circuits in corrugated non-combustible pipe.

Distance between cables and electrical communications, pipelines with combustible gases shall be not less than 0.5 m.

In all cases where wires and cables pass through walls, wire or cable, lay in a separate piece of steel pipe.

up Up