Layout points and key design of fire pumps

Fire pumps shall comply with the following provisions:

1, independently constructed fire pump fire resistance rating should not be less than two;.

2, attached to the fire pump room in the building, should not be set in the third underground and below, or indoor ground and outdoor entrance floor height difference is greater than 10m underground floor;.

3, attached to the fire pump room in the building, should be used fire resistance limit of not less than 2.0h partition walls and 1.5h floor and other parts of the separation, the evacuation door should be straight to the safety exit, and open to the evacuation aisle door should be used Class A fire door.

The setting of fire pump room shall comply with the following provisions:

1，The fire-resistance level of the separately constructed fire pump room should not be lower than Grade II.

2, attached to the fire pump room in the building, should not be set in the underground three and below, or indoor ground and outdoor entrance floor height difference is greater than 10m underground floors;.

3, the evacuation door should be straight to the outdoor or safety exit.

Independent fire pump room ground floor floor to the bottom of the roof or ceiling and other protruding components of the net height, in addition to ventilation and lighting conditions should be determined, and should be consistent with the following provisions:

1、When fixed hooks or mobile hangers are used, the value shall not be less than 3.0m;.

2、When monorail lifting is used, a clear distance of 0.50m or more shall be maintained between the bottom of the lifted object and the top of the object crossed by the lifting; and

3, when the use of truss lifting, in addition to the provisions of paragraph 2 of this article should be met, should also increase the height of the crane installation and maintenance space.

Fire pumps should not be located in the room with seismic or quiet requirements on the ground floor, the next floor and adjacent locations, when necessary, the following noise and vibration damping measures should be taken:

1, fire pumps should be used bottom noise pumps.

2, the fire pump unit should be set up vibration isolation device; 3, the fire pump suction pipe and the fire pump.

3, fire pump suction pipe and discharge pipe should be set on the vibration isolation device.

4, fire pump room pipe bracket and pipe through the wall and through the floor, should take measures to prevent solid sound transmission.

5, in the fire pump room wall should take sound insulation and sound absorption technical measures.