Fire water tank is in the building outdoor water supply pipe network can not always ensure that the indoor water supply pipeline has sufficient pressure to set.
Low-rise building indoor fire water tank should be stored for 10 minutes of indoor fire water consumption. High-rise building fire water tank storage, a class of buildings should not be less than 18 cubic meters, two types of buildings and a class of residential buildings should not be less than 12 cubic meters, the second class residential building should not be less than 6 cubic meters. Its installation height must meet the most unfavorable point set indoor hydrant water pressure.
Fire water and other water to use the same water tank, there should be to ensure that fire water is not being transferred to it with technical measures, such as other water outlet higher than the fire water surface; but when the storage of fire water, Can only be calculated according to the following part of the water.
If the fire tank can not meet the most unfavorable point of the fire hydrant's water pressure, can be set to a fixed fire pump or pressure water tank local pressure. Such as the use of pressure water tank, fire water should ensure that the water and water pressure. If a fixed fire pump is used, fire fighting should be set up at the fire hydrant where the water pressure is insufficient (including more than 6 storey apartment buildings, more than 5 storeys other civil buildings and more than 4 storeys) Pump button; and in order to prevent the pressurized water back into the water tank, but also in the fire water tank set on the outlet pipe check valve.
Pneumatic water tank is a fully automatic local pressurized water supply device. The basic principle is in the pump and water supply pipe network between the additional pressure air storage tank. Divided into no diaphragm and diaphragm type two. By the pressure water tank, pumps, motors, control cabinet, automatic air supply device, air filters, pressure gauges and controllers and other devices.
See Table 6-3-10 for common faults of air pressure water tank and how to remove them.
Fire water pump is to ensure that indoor water supply pipe network pressure and flow of machinery and equipment, in order to ensure the continued supply of fire water, fire pumps to meet the following requirements:
1. A group of fire pumps, at least two suction pipes, one of which fails, the rest of the suction pipe should still be able to meet the requirements of fire water supply. High pressure fire water supply system of each fire pump should have separate suction pipe.
2. Fire pump suction pipe and outlet pipe, in order to facilitate inspection and maintenance, generally should be laid on the ground in the pump room; the valve should be located in a convenient place to operate, and the need to have obvious signs of opening and closing.
3 fire pump suction pipe diameter should not be less than the diameter of the fire pump inlet.
4. Fire pumps should adopt self-irrigation water, in order to ensure timely water supply, the general should be within 5 minutes after the alarm that can start the work. In order to ensure normal operation in any case, should be set to two-way power supply or equipment with internal combustion engine power.
5. Fire pumps and power machinery should be directly connected, if there are difficulties, can be used less than four triangular tape drive, so as not to slip.
6. Fixed fire pumps should be set up standby pump, standby pump working capacity should not be less than the main pump.
7. fire pump outlet pipe, check valves should be installed and for testing, check with the release valve.
High pressure water supply system to maintain the pressure of the fire pump, in normal operation, should be strictly monitored or patrol pump unit has abnormal noise or vibration, the bearing temperature is more than allowable values (up to 75 ℃), a variety of monitoring instruments are normal . Standby pumps and temporary high-pressure water supply system of the fire pump irrigation conditions, power equipment, etc. should maintain a good state of combat readiness, the fire can immediately start.
Low-rise building indoor fire water tank should be stored for 10 minutes of indoor fire water consumption. High-rise building fire water tank storage, a class of buildings should not be less than 18 cubic meters, two types of buildings and a class of residential buildings should not be less than 12 cubic meters, the second class residential building should not be less than 6 cubic meters. Its installation height must meet the most unfavorable point set indoor hydrant water pressure.
Fire water and other water to use the same water tank, there should be to ensure that fire water is not being transferred to it with technical measures, such as other water outlet higher than the fire water surface; but when the storage of fire water, Can only be calculated according to the following part of the water.
If the fire tank can not meet the most unfavorable point of the fire hydrant's water pressure, can be set to a fixed fire pump or pressure water tank local pressure. Such as the use of pressure water tank, fire water should ensure that the water and water pressure. If a fixed fire pump is used, fire fighting should be set up at the fire hydrant where the water pressure is insufficient (including more than 6 storey apartment buildings, more than 5 storeys other civil buildings and more than 4 storeys) Pump button; and in order to prevent the pressurized water back into the water tank, but also in the fire water tank set on the outlet pipe check valve.
Pneumatic water tank is a fully automatic local pressurized water supply device. The basic principle is in the pump and water supply pipe network between the additional pressure air storage tank. Divided into no diaphragm and diaphragm type two. By the pressure water tank, pumps, motors, control cabinet, automatic air supply device, air filters, pressure gauges and controllers and other devices.
See Table 6-3-10 for common faults of air pressure water tank and how to remove them.
Fire water pump is to ensure that indoor water supply pipe network pressure and flow of machinery and equipment, in order to ensure the continued supply of fire water, fire pumps to meet the following requirements:
1. A group of fire pumps, at least two suction pipes, one of which fails, the rest of the suction pipe should still be able to meet the requirements of fire water supply. High pressure fire water supply system of each fire pump should have separate suction pipe.
2. Fire pump suction pipe and outlet pipe, in order to facilitate inspection and maintenance, generally should be laid on the ground in the pump room; the valve should be located in a convenient place to operate, and the need to have obvious signs of opening and closing.
3 fire pump suction pipe diameter should not be less than the diameter of the fire pump inlet.
4. Fire pumps should adopt self-irrigation water, in order to ensure timely water supply, the general should be within 5 minutes after the alarm that can start the work. In order to ensure normal operation in any case, should be set to two-way power supply or equipment with internal combustion engine power.
5. Fire pumps and power machinery should be directly connected, if there are difficulties, can be used less than four triangular tape drive, so as not to slip.
6. Fixed fire pumps should be set up standby pump, standby pump working capacity should not be less than the main pump.
7. fire pump outlet pipe, check valves should be installed and for testing, check with the release valve.
High pressure water supply system to maintain the pressure of the fire pump, in normal operation, should be strictly monitored or patrol pump unit has abnormal noise or vibration, the bearing temperature is more than allowable values (up to 75 ℃), a variety of monitoring instruments are normal . Standby pumps and temporary high-pressure water supply system of the fire pump irrigation conditions, power equipment, etc. should maintain a good state of combat readiness, the fire can immediately start.
Manufacturers recommend: Shenlong stainless steel fountain submersible pump
Keywords:Fire water tanks, fire pumps, stainless steel fountain submersible pumps
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