CN202699925U - Complete displacement-type gas top-pressure emergency fire water supply device in pressure stabilization process isolated from air - Google Patents

Abstract

The utility model relates to a complete displacement gas top-pressure emergency fire-fighting water supply equipment in the process of isolating from the air and stabilizing the pressure, comprising a pneumatic water tank, an air inlet pipe, a check valve, an overpressure relief device, a control cabinet, a pressure reducing valve group, and a gas cylinder Group, air supply air compressor, top pressure device, air stop device, water outlet pipe, water supply pump, pressure sensor, magnetic flap liquid level gauge and water inlet pipe, characterized in that: the water inlet pipe is provided with a diaphragm pressure tank. The utility model has the advantages of reducing the total volume of the air pressure water tank, reducing the engineering cost and difficulty of transportation and installation of the air pressure water tank; preventing the compressed air from dissolving in water during the process of stabilizing the equipment and causing corrosion and damage to the equipment and pipelines. The lowest pressure section of the anti-pipe network forms an air chamber, which is not conducive to fire protection; it simplifies the control method of the equipment, reduces the difficulty of debugging the equipment, improves the operating performance of the equipment, and realizes the complete replacement of air and water.

Description

Complete displacement gas top pressure emergency fire water supply equipment isolated from the air during the pressure stabilization process

technical field

The utility model relates to a complete set of gas top-pressure emergency fire-fighting water supply equipment, in particular to a complete displacement gas top-pressure emergency fire-fighting water supply equipment which is isolated from the air in the process of stabilizing the pressure.

Background technique

As shown in Figure 1, when the equipment is put into operation, the supplementary water pump 13 or 14 works to send water to the fire pipe network and the air pressure water tank 1, when the liquid level reaches the set value SN3 on the magnetic flap liquid level gauge 16 , the supplementary water pump stops working, and the system pressure does not reach the set pressure value at this time, and the pressure-stabilizing air compressor 9 starts to run. This product is equipped with a pressure sensor 15, which can monitor the pressure of the fire-fighting pipe network system. When the pressure rose to the stabilized pressure upper limit SP1, the stabilized air compressor 9 stopped running. Due to system leakage, when the liquid level in the air pressure water tank drops to the set value SN2 point on the magnetic flap liquid level gauge 16, the water replenishment pump 1 or water replenishment pump 2 starts to replenish water to the fire protection system; when the liquid level in the air pressure water tank When the liquid level reaches the set value SN3 point on the magnetic flap liquid level gauge 16, the supplementary water pump stops running; when the pressure of the fire-fighting system drops to the lower limit of the stabilized pressure SP2, the stabilized air compressor 9 starts to operate for supplementing pressure; When the system pressure rises to the upper limit SP1 of the stabilized pressure, the stabilized air compressor 9 stops running. So again and again. When a fire occurs, the fire-fighting device is put into operation, and the pressure of the pipe network drops sharply. When the pressure drops to SP3 or the fire-fighting signal is input, the top pressure device 10 works, releasing the compressed air stored in the gas cylinder group 7, and the pressure water tank The water in 1 is pushed into the fire-fighting pipe network, and 10min of fire-fighting water is provided to the pipe network. When the liquid level drops to the set value SN1 on the magnetic flap liquid level gauge 16, the air stop device is closed to prevent the gas in the air pressure water tank from entering the firefighting pipe network, and the firefighting ends.

For the gas top pressure emergency fire water supply equipment with this structure, the air pressure water tank 1 has a part of the air chamber above the liquid level SN3 point, so in the normal pressure stabilization process, the fire water in the air pressure water tank is in direct contact with the compressed air, there is Part of the compressed air is dissolved in the water. As the fire pipe network continues to extend, the pressure in the fire pipe gradually decreases, and the gas dissolved in the water will continue to precipitate, thus forming an air chamber at the lowest pressure section of the fire pipe network. unfavorable.

Utility model content

The purpose of the utility model is to overcome the disadvantage of unfavorable fire protection in the prior art, and provide a new type of complete displacement gas top pressure emergency fire water supply equipment which is isolated from the air in the process of stabilizing the pressure.

In order to achieve the above object, the technical solution of the utility model is achieved in this way: the complete replacement type gas top pressure emergency fire water supply equipment in the process of isolating the pressure from the air, including: air pressure water tank, air intake pipe, check valve, overpressure relief Pressure device, control cabinet, pressure reducing valve group, gas cylinder group, air supply air compressor, top pressure device, air stop device, water outlet pipe, water supply pump, pressure sensor, magnetic flap liquid level gauge and water inlet pipe, its characteristics In that: the water inlet pipe is provided with a diaphragm pressure tank.

With the help of the above structure, the utility model has the advantages of reducing the total volume of the air pressure water tank, reducing the engineering cost and difficulty of transportation and installation of the air pressure water tank; preventing the compressed air from dissolving in water during the process of stabilizing the equipment and causing damage to the equipment and pipelines. Corrosion and the formation of air chambers in the lowest pressure section of the anti-pipe network are not conducive to fire protection; the control method of the equipment is simplified, the difficulty of debugging the equipment is reduced, the operating performance of the equipment is improved, and the complete replacement of air and water is realized.

Description of drawings

Fig. 1 is a structural schematic diagram of the prior art.

Fig. 2 is a structural representation of the utility model.

Serial numbers in the figure: 1. Air pressure water tank 2. Air intake pipe 3. Check valve 4. Overpressure relief device 5. Control cabinet 6. Pressure reducing valve group 7. Gas cylinder group 8. Air supply air compressor 9. Stabilizer Air compressor 10, top pressure device 11, air stop device 12, water outlet pipe 13, water supply pump 14, water supply pump 15, pressure sensor 16, magnetic flap liquid level gauge 17, diaphragm air pressure tank.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Shown in Figure 2 is the structure of the complete displacement gas top pressure emergency fire water supply equipment in the process of isolation and pressure stabilization from the air, including: air pressure water tank, air intake pipe, check valve, overpressure relief device, control cabinet, decompression Valve group, gas cylinder group, air compressor, top pressure device, air stop device, water outlet pipe, water replenishment pump, pressure sensor, magnetic flap liquid level gauge and water inlet pipe, characterized in that: the water inlet pipe is equipped with There is a diaphragm pressure tank.

As shown in Figure 2, compared with the above-mentioned product, the gas top-pressure emergency fire-fighting water supply equipment product of this structure cancels the pressure-stabilizing air compressor 9 in the above-mentioned product, and adds a diaphragm air pressure tank 15. When the product of this structure is put into operation, use the pressure stabilizing pump 1 or 2 to supply water to the entire fire control pipe network and the air pressure water tank 1, and the air in the air pressure water tank will be pumped into the air pressure water tank 1 through the exhaust device 4. The air in the air is exhausted, so that the whole air pressure water tank 1 is filled with water; part of the water enters the diaphragm air pressure tank, and the whole system begins to have pressure. This product is equipped with a pressure sensor 14, which can monitor the pressure of the fire pipe network system. When the pipe network pressure rises to the upper limit SP1 of the pressure stabilization, the pressure stabilization pump stops running. Due to the leakage of the fire-fighting pipe network system, when the pipe network pressure drops to the lower limit of the steady pressure SP2, the stabilized pressure pump runs again; when the pressure rises to the lower limit of the stabilized pressure SP1, the stabilized pressure pump stops running. So again and again. The pressure of the entire pressure stabilizing system is regulated by the stabilizing pump and the diaphragm air pressure tank, so that the water in the fire pipe network system is completely separated from the air during the entire pressure stabilizing process. When a fire occurs, the fire-fighting device is put into operation, and the pressure of the pipe network drops sharply. When the pressure drops to SP3 or the fire-fighting signal is input, the top pressure device 10 works, releasing the compressed air stored in the gas cylinder group 7, and the pressure water tank The water in 1 is pushed into the fire-fighting pipe network, and 10min of fire-fighting water is provided to the pipe network. When the liquid level drops to the set value SN1 on the magnetic flap liquid level gauge 16, the air stop device is closed to prevent the gas in the air pressure water tank from entering the firefighting pipe network, and the firefighting ends. The product of this structure realizes the complete replacement of air and water.

Compared with the product of gas top pressure fire emergency fire water supply equipment of this structure and the product of the structure shown in Figure 1, the air pressure water tank does not have the structure shown in Figure 1. Between the liquid level SN2 and N3 in the product, the water volume and the liquid level SN3 are stabilized and adjusted. In this way, the total volume of the air pressure water tank is reduced, thereby reducing the engineering cost of the air pressure water tank and the difficulty of transportation and installation; and the product of this structure only uses pressure to control the operation and stop of the pressure stabilizing pump, so that It is not necessary to use the liquid level to control the operation and stop of the stabilized pressure pump like the product with the structure in Figure 1, and to use the pressure to control the operation and stop of the stabilized air compressor, thus simplifying the control method, reducing the difficulty of debugging the product, and improving the reliability of the equipment. run performance.

The above only expresses the embodiment of the utility model, and its description is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (1)

1. with the emergent fire water supply equipment of the complete replacement type gas pressing of the isolated voltage stabilizing process of air, comprise: auto-pneumatic cylinder, air inlet pipe, check-valves, superpressure pressure relief device, switch board, pressure-reducing valve group, gas cylinder group, tonifying Qi air compressor machine, jack unit, gas sealer, outlet pipe, small pump, pressure sensor, magnetic flap level gauge and water inlet pipe is characterized in that: described water inlet pipe is provided with diaphragm air pressure tank.

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