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Gas supply of a residential building with hydraulic calculation of an internal house gas pipeline

  • Added: 09.08.2014
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Description

Gas supply project of a single apartment building with installation of a wall boiler with a closed combustion chamber. Subway drawings, internals, hydraulic calculation of gas pipeline.

Project's Content

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Additional information

Explanatory Note

To the gas supply project of residential building No. 11 on the street. Hope, Ensk.

The gas supply project was developed in accordance with the specification No. 2010 issued by the Enskmezhraigaz branch and the design assignment.

This project provides for the gas supply of a residential one-story, stone, single-apartment building from a low-pressure street steel gas pipeline, with a diameter of 76 mm, laid with a depth of 1.2 m on the street. Hope. in the city of Ensk .

A wall gas boiler BAXI 24 Main Fi is provided for heating and hot water supply of the residential building. For food preparation, it is planned to install a 4-conical gas stove "Hephaestus" in the kitchen room.

Gas equipment, including imported production, must be certified, and must also have permission from Rostekhnadzor of Russia for use in accordance with the requirement of the instruction on the procedure for issuing permits by Rostekhnadzor of Russia for the production and use of equipment for the gas economy of the Russian Federation and information in Russian language/passport/.

The BAXI 24 Main Fi boiler installation room has V - 17.3m3, the height of the room is 3.75m, artificial and natural lighting is provided. Window opening with window window, glazing area (based on 0.03m2 per 1m3 of room volume) - 0.52m2.

Natural ventilation is provided on the basis of: 3 times air exchange per hour; exhaust - ventilation channel from PE of Du200 pipe, inflow from adjacent room through ventilation screen 150x200 at the floor. In residential buildings, ventilation channels from rooms in which heating gas-using equipment for apartment heating is installed are not allowed to be combined with ventilation channels of other rooms (bathrooms, storerooms, garages).

Air intake for combustion and removal of combustion products from BAXI 24 Main boiler is performed through the roof by coaxial air duct-chimney Ø100x60 of factory manufacture in accordance with the installation instruction of the manufacturer.

In the kitchen room, natural ventilation is provided through the ventilation channel from the PE of the Du200 pipe and the window with the window.

The internal gas pipeline shall be made of steel water and gas pipes as per GOST 326275 in accordance with the requirements of SNiP 42012002, PB 1252903.Dye the above-ground gas pipeline with resistant paint and varnish materials. Before application of paint and varnish materials, clean the metal surface of gas pipelines from contamination and rust with the help of a manual or mechanical tool, ensure that the oiled surfaces are degreased.

A gas meter of type BKG4T with a capacity of 6m3/h shall be provided to account for gas flow.

To clean gas from mechanical impurities, the filter is installed in front of the meter.

On input of the gas pipeline to the room, for interruption in supply of gas at achievement in room T - 100 With the valve thermolocking is installed.

Lay the underground gas pipeline from steel electric welded straight-joint pipes according to GOST 1070491, with a depth of at least 0.8 m to the top of the gas pipeline.

Cover the underground gas pipeline with "very reinforced" insulation as per GOST 9.60289. Steel pipes shall be welded as per GOST 1603780.

To determine the location of the gas pipeline, identification marks are installed in accordance with paragraph 10 of the Rules for the Protection of Gas Distribution Networks, indicating the distance to the gas pipeline, depth of laying, telephone of the emergency dispatch service. Reference signs are located on the wall of the residential building. Signs shall be made according to 5.90525.05 series of NPP 2.00

According to resolution No. 878 of 20.11.2000 "On approval of the Rules for the protection of gas distribution networks for underground and above-ground gas pipelines," a protection zone is established in the form of a territory limited by conditional lines passing at a distance of 2 m from each side of the gas pipeline. In the security zone it is forbidden: to build objects, fence security zones, arrange landfills, warehouses.

The tie-in of the designed underground gas pipeline to the existing one should be clarified at the place.

Excavation works near the existing gas pipeline and adjacent communications should be carried out only manually, in the presence of representatives of interested organizations.

To prevent destruction of the basement inlet of the gas pipeline from the ingress of electrical charges at the exit from the ground, an insulating ridge is designed.

Installation and testing of gas pipelines and gas equipment shall be carried out in accordance with SNiP 42012002 "Gas Distribution Systems" and Safety Rules for Gas Distribution and Gas Consumption Systems PB 1252903.

The project shall be agreed with all interested organizations.

Drawings content

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