Air compressor for fire fighting

Abstract

The utility model provides a fire-fighting air compressor which comprises a temperature control device and a pressure supply device, the pressure supply device comprises a liquid oil circulation system and an air path supply system, and the temperature control device comprises a liquid storage tank, a power pump and a cooler which are sequentially connected in series and form a communication loop. The coolers and the pressure supply devices are interacted to achieve heat exchange conduction, and the number of the pressure supply devices is not less than two. By arranging the two pressure supply devices, when one pressure supply device breaks down, the other pressure supply device can play a role in time, one pressure supply device is standby, and the other pressure supply device is used in time, so that normal fire extinguishing operation is guaranteed, and the reliability of mechanical operation is improved; the operation temperature of the air compressor is directly reduced, the stability of the operation performance and the working efficiency of the air compressor are improved, it is guaranteed that output high-pressure gas is in a low-temperature state, and the efficiency of the air compressor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technology field especially relates to a fire service air compressor. BACKGROUND

[0002] The factors of object combustion include combustible, suitable temperature and moderate oxygen. Therefore, if the fire is to be extinguished, at least one of the factors needs to be solved. For a long time, water has been used as the main extinguishing agent due to its easy extraction, low price, no corrosion and pollution. However, due to the large surface tension of water, the penetration is poor, and the water cannot be attached to the vertical surface, resulting in low fire extinguishing efficiency of water.

[0003] In the prior art, in order to solve this problem, a foam extinguishing device is usually used. In the foam extinguishing device, a piston air compressor is generally used to compress air. The foam generated in the device is sprayed out through the nozzle under the action of compressed air to achieve the purpose of extinguishing fire. Since the piston air compressor is the core power component of the compressed air foam extinguishing system, it is prone to failure during long-term operation. If a failure occurs, the fire extinguishing operation can only be terminated and maintenance can be carried out, which will undoubtedly delay the progress of the fire extinguishing operation and cause greater loss to personal safety or property. In addition, the heat generated by the piston of the piston air compressor will continue to be conducted to the compressed gas, thereby directly reducing the fire extinguishing efficiency of the foam extinguishing device. SUMMARY

[0004] The utility model aims at providing a fire service air compressor to improve the stability and working efficiency of the operation performance of the fire service air compressor.

[0005] In order to solve the above technical problems, the utility model provides a fire service air compressor, which comprises a temperature control device and a pressure supply device. The temperature control device comprises a liquid storage tank, a power pump and a cooler which are connected in series and form a communication loop. The cooler and the pressure supply device interact to realize heat exchange and conduction. The pressure supply device comprises a liquid oil circulation system and a gas supply system. The pressure supply device is not less than two groups.

[0006] In a preferred embodiment, the liquid oil circulation system comprises an air compressor host, the output end of the air compressor host is connected to the input end of an oil-gas separation barrel, the first output end of the oil-gas separation barrel is connected to the input end of a temperature-controlled oil filter through a cooler, and the output end of the temperature-controlled oil filter is connected to the input end of the air compressor host.

[0007] In a preferred embodiment, the second output end of the oil-gas separation barrel is connected to the input end of a gas storage barrel through a cooler, the output end of the gas storage barrel is in communication with the gas inlet of a gas-liquid mixer, and the gas outlet of the gas-liquid mixer is provided with a pressure control valve.

[0008] In a preferred embodiment: the gas storage barrel is a pressure container.

[0009] In a preferred embodiment: the temperature control system circulates cooling liquid.

[0010] In a preferred embodiment: the cooling liquid is water.

[0011] In a preferred embodiment: the air compressor main machine is a screw air compressor.

[0012] In a preferred embodiment: the cooler comprises a first cooler, the output end of the first cooler is connected to the input end of a second cooler, the input ends of the first cooler and the second cooler are respectively connected to the liquid storage tank and the oil-gas separation barrel.

[0013] In a preferred embodiment: the input end of the second cooler is connected to the output end of the oil-gas separation barrel, and the output end of the second cooler is respectively connected to the liquid storage tank and the gas storage barrel.

[0014] Compared with the prior art, the technical scheme of the air compressor has the following beneficial effects:

[0015] The temperature control device is arranged to adjust the temperature in the liquid oil circulation system and the gas circuit supply system of the pressure supply device, which directly reduces the operating temperature of the air compressor, improves the stability and working efficiency of the operating performance of the air compressor, ensures that the output high-pressure gas is in a low-temperature state, and improves the efficiency of the air compressor.

[0016] The two groups of pressure supply devices are arranged, and when one group of pressure supply devices has a problem, the other group can play a role in time, realizing one standby and one use, so as to ensure the normal operation of the fire extinguishing operation and improve the reliability of the mechanical operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a top view of the air compressor of the utility model;

[0018] Fig. 2 is an axial view of the air compressor of the utility model;

[0019] Fig. 3 is a system connection diagram of the air compressor of the utility model. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the utility model belong to the protection scope of the utility model.

[0021] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external", "top / bottom end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, construct and operate with a particular orientation, therefore cannot be understood as the restriction of the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "set with", "sleeve set / interface", "connection" and so on, should be broad understanding, for example "connection", can be wall-mounted connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements, for the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0023] Reference Figs. 1-3The embodiment provides a fire-fighting air compressor, which comprises a temperature control device and a pressure supply device, wherein the pressure supply device mainly comprises an oil-gas separation barrel 15, the input end of the oil-gas separation barrel 15 is connected with the output end of an air compressor host, the output end of the oil-gas separation barrel 15 comprises a first output end for outputting liquid oil and a second output end for outputting pure compressed gas; the first output end is connected with the input end of a temperature-controlled oil filter through a cooler; the output end of the temperature-controlled oil filter is connected with the input end of the air compressor host 14, thereby forming a liquid oil circulation system. In the embodiment, the air compressor host 14 is a screw air compressor; the compressed gas generated by the air compressor host 14 enters the oil-gas separation barrel 15 to be separated; the compressed gas separated out enters the gas storage barrel 16 through the second output end of the oil-gas separation barrel 15 and the cooler to form a gas path supply system. Since the gas storage barrel 16 is essentially a pressure container, when the gas in the gas storage barrel 16 is accumulated to a certain degree, the output end of the gas storage barrel 16 is opened, and the pressure gas enters a gas-liquid mixer (not shown in the figure) in a cavity provided with fire extinguishing foam through the gas outlet on the output end; the output end of the gas-liquid mixer is provided with a pressure control valve for controlling the speed of the fire extinguishing foam sprayed outwards. It can be understood that the cooler is used for cooling the liquid in the liquid oil circulation system, so that the temperature of the liquid oil returned to the screw air compressor is prevented from being too high to cause the air compressor to overload and malfunction, thereby ensuring the stability and efficiency of the motor operation performance. In addition, the cooler is used for heat exchange of the gas in the gas path supply system, so that the temperature of the pressure gas in the gas storage barrel 16 is rapidly reduced, thereby directly improving the fire extinguishing efficiency of the foam fire extinguishing.

[0024] In the utility model, the pressure supply device is arranged as two groups, when one group of the pressure supply device has a problem, the other group can play a role in time, realizes one spare one uses, guarantees the normal operation of the fire extinguishing operation, improves the reliability and stability of the fire extinguishing operation. The temperature control device comprises a liquid storage tank 10, a power pump a and a cooler which are connected in sequence and form a communication loop, and cooling liquid circulates in the temperature control device, specifically, the cooling liquid is water in the fire-fighting system. The cooling liquid is used for heat exchange of the liquid oil and the pressure gas in the pressure supply device respectively, so as to improve the output efficiency of the air compressor. Specifically, the cooler comprises a first cooler 11 and a second cooler 12, the output end of the first cooler 11 is connected with the input end of the second cooler 12, the input end of the first cooler 11 is connected with the oil-gas separation barrel 15 and the liquid storage tank 10 respectively, the input end of the second cooler 12 is connected with the output end of the oil-gas separation barrel 15, and the output end of the second cooler 12 is connected with the liquid storage tank 10 and the gas storage barrel 16 respectively.

[0025] The above merely describes a preferred embodiment of the present application, and the design concept of the present application is not limited thereto, and any person skilled in the art, within the technical scope disclosed by the present application, can make non-essential changes to the present application using the concept, and such changes shall be deemed to fall within the protection scope of the present application.

Claims

1. A fire service air compressor comprising a temperature control device and a pressure supply device, characterised in that; The temperature control device comprises a liquid storage tank, a power pump and a cooler connected in series and forming a communication loop, the cooler and a pressure supply device interact to realize heat exchange conduction, the pressure supply device comprises a liquid oil circulation system and a gas supply system, and the pressure supply device is not less than two groups.

2. A fire service air compressor as claimed in claim 1, characterised in that: The liquid oil circulation system comprises an air compressor main machine, an output end of the air compressor main machine is connected to an input end of an oil-gas separation barrel, a first output end of the oil-gas separation barrel is connected to an input end of a temperature control oil filter through a cooler, and an output end of the temperature control oil filter is connected to an input end of the air compressor main machine.

3. An air compressor for fire fighting according to claim 2, characterised in that: A second output end of the oil-gas separation barrel is connected to an input end of a gas storage barrel through a cooler, an output end of the gas storage barrel is communicated with an air inlet of a gas-liquid mixer, and an air outlet of the gas-liquid mixer is provided with a pressure control valve.

4. An air compressor for fire fighting according to claim 3, characterised in that: The gas storage barrel is a pressure container.

5. A fire service air compressor as claimed in claim 1, wherein: The temperature control system circulates cooling liquid.

6. A fire service air compressor as claimed in claim 5, characterised in that: The cooling liquid is water.

7. A fire service air compressor as claimed in claim 2, wherein: The air compressor main machine is a screw air compressor.

8. A fire service air compressor as claimed in claim 3, wherein: The cooler comprises a first cooler, an output end of the first cooler is connected to an input end of a second cooler, and the input end of the second cooler is respectively connected to the liquid storage tank and the oil-gas separation barrel.

9. An air compressor for fire fighting according to claim 8, characterised in that: An output end of the second cooler is connected to an output end of the oil-gas separation barrel, and the output end of the second cooler is respectively connected to the liquid storage tank and the gas storage barrel.

Images