Vehicle Instrumentation and Maintenance Shop (CID and TS TS)

1. Source Data

The design documentation is developed on the basis of the contract No., the assignment of the construction department and in accordance with the requirements of:

- SNiP 2.04.0185 * "Internal water supply and sewerage of buildings";

- SNiP 31042001 "Warehouse Buildings";

- SP 10.13130.2009 "Fire protection systems. internal fire-fighting water supply ";

- STO 02494733.5.2012006 "Internal water supply and sewerage of buildings."

The following water supply and sewerage systems are designed at the production and storage base:

- domestic drinking water supply B1;

- fire-fighting water supply B2;

- hot water supply to TA;

- domestic sewerage system K1;

- CP production sewage system.

2. Water supply system

In the production and storage base, cold water is used for household and drinking needs, fire extinguishing and for the preparation of hot water.

The source of cold water supply of the base is the existing network of external water supply. The network section from the existing pit to the inlet unit shall be provided from PE 100 SDR11 polyethylene drinking pipes as per GOST 185992001.

The project provides for two separate cold water supply systems: for household and drinking needs and a fire water supply system.

All expenses are accepted in accordance with the requirements of SNiP 2.04.0185 *, process part of the project and are given on the sheet

The required head for household and drinking needs is 2025 m water .

The required head in the fire water supply network is 30m water.

Guaranteed head in the network - 10mvod.st .

On the main water supply system, after the water flow metering unit, a pressure increase unit with a bypass line device is provided.

The water flow rate for internal fire extinguishing is 10 l/s (2 jets of 5 l/s each) at the volume of the largest part of the building allocated by fire walls, 18.7 thousand cubic meters, fire resistance rating of the building II and fire hazard category "B."

Internal fire extinguishing is carried out from single fire cranes with a diameter of 65mm with fire hoses 20 meters long and a fire barrel spray diameter of 19mm.

Fire cranes should be installed at a height of 1.35 m from the floor, in fire cabinets with ventilation holes, adapted for their sealing and visual inspection without opening.

Two manual fire extinguishers shall be available near each entrance.

16 fire cranes are provided at the production and storage base.

Two cold water pipelines were designed with the installation of disconnecting valves on each of them.

On the fire-fighting water supply network there is a pressure increase unit with a device of disc gates with an electric drive on each suction line.

Actuation of the fire extinguishing pressure increasing unit and opening of the disc rotary locks is performed automatically, from the buttons installed at the fire cranes. Fire fighting equipment is powered from a separate power supply network.

Water flow rate for external fire extinguishing as per SP 8.13130.2009 at functional fire hazard class "F5.2," volume of the largest part of the building allocated by fire walls, 18.7 kbm, fire resistance rating of the building II and fire hazard category "B" is 15 l/s. Fire extinguishing is carried out from existing fire hydrants of the ring water supply network with a diameter of 150mm and from the hydrant installed in the existing connection well.

The cold water supply network for household and drinking needs is made of Pn20 polypropylene pipes. The pipelines shall be covered with Thermaflex insulation with thickness of 9 mm before condensation formation.

Cold fire water supply network is made of steel water and gas pipes as per GOST 326275 *. Paint steel pipelines with oil paint in two times.

Water quality meets the requirements of SanPiN 2.1.4.107401 "Drinking water."

Water flow rate is recorded by water flow counter SKB20. The counter is installed in the room of the input unit, with the device of the bypass line ⌀50mm. Gate valve sealed in closed position is installed on bypass line.

At the production and storage base, hot water is spent on household and drinking needs.

Hot water is prepared in accumulating electric water heaters.

All required head are provided by head in the main water supply system.

The hot water network is made of Pn20 polypropylene pipes.

For watering and cleaning of the territory there are external watering cranes ⌀ 25mm.

For water intake for wet harvesting, installation of ball water intake valves installed in tambours is provided. knots at a distance of 0.5 m from the floor level.

Provide attachments to the structural structures of the building.

Installation, testing of networks and acceptance shall be carried out in accordance with SNiP 3.05.0185 "Internal Sanitary and Technical Systems."

Openings in walls and floors after installation of utilities shall be tightly sealed with material with the same fire resistance limit as the structure to be crossed.

The elevations and bindings shall be specified in place by the installation organization taking into account building structures and communications.

3. Water disposal system

At the production and warehouse base, two separate sewerage systems are designed - production and household.

The production sewage system is provided for the removal of water from the storage rooms in case of fire fighting, from hand washing and for the removal of water from the inlet room.

As per the system of gravity pipelines, waste water is sent to the system of on-site networks of general alloy sewage and further to the city collector. Lay on-site PP networks PRAGMA "PipeLife."

On the network of industrial sewerage there is provision for the installation of ladders with a slope near them.

To prevent possible failure of hydraulic locks, ventilation risers are installed on the sewage network, which are removed above the roof and air valves.

To prevent and eliminate pipeline clogging on the network, a clean-up and revision installation is provided.

Internal sewer networks are made of Egoplast polypropylene pipes. Sewage from cast iron pipes shall be provided at the outlets as per GOST 694298.

Domestic sewage collects sewage from sanitary facilities, showers, from wet cleaning of domestic and administrative premises and sends them through the internal pipeline system to the external gravity sewage network (designed).

To prevent possible failure of hydraulic locks, air valves are installed on the sewer network.

To prevent and eliminate pipeline clogging on the network, a clean-up and revision installation is provided.

Domestic sewage networks are made of Egoplast polypropylene pipes.

4. Balance of water consumption and water disposal

Cold water supply B1 - 1.4 m3/day;

Hot water supply of T3 (from B1) - 1.1 m3/d;

Sewer K1 and K3 - 2.5 m3/day.