CN221014271U - Compressed air foam fire extinguishing device - Google Patents
Compressed air foam fire extinguishing device Download PDFInfo
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- CN221014271U CN221014271U CN202322735620.7U CN202322735620U CN221014271U CN 221014271 U CN221014271 U CN 221014271U CN 202322735620 U CN202322735620 U CN 202322735620U CN 221014271 U CN221014271 U CN 221014271U
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- liquid
- compressed air
- buffer tank
- pressure buffer
- gas
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- 239000006260 foam Substances 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 169
- 230000007246 mechanism Effects 0.000 claims abstract description 98
- 238000002156 mixing Methods 0.000 claims abstract description 35
- 230000001502 supplementing effect Effects 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 10
- 238000004146 energy storage Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a compressed air foam fire extinguishing device, which is characterized in that: the foam mixing device comprises a pressure buffer tank, a liquid supplementing mechanism for injecting foam mixed liquid, a compressed air inlet mechanism for supplementing compressed air, a gas-liquid mixing mechanism for mixing the foam mixed liquid and the compressed air, a pressure detection adjusting mechanism for detecting and adjusting the inside of the pressure buffer tank, and a liquid discharging mechanism for discharging the mixed liquid in the pressure buffer tank, wherein the top of the pressure buffer tank is provided with the liquid supplementing mechanism, the compressed air inlet mechanism, the gas-liquid mixing mechanism and the pressure detection adjusting mechanism which are communicated with the inner cavity of the pressure buffer tank, the compressed air inlet mechanism is communicated with the gas-liquid mixing mechanism, and the bottom of the pressure buffer tank is provided with the liquid discharging mechanism which is communicated with the pressure buffer tank. The utility model has high integration level, small occupied space, high use safety, convenient maintenance and modularized flexible design, and is applicable to multiple scenes.
Description
Technical Field
The utility model relates to a fire extinguishing device, in particular to a compressed air foam fire extinguishing device.
Background
As an efficient, low-consumption, multipurpose, light and environment-friendly fire extinguishing system, the compressed air foam fire extinguishing system is compared with the traditional negative pressure foam fire extinguishing technology, a certain proportion of compressed air is introduced into a foam mixed liquid with pressure through a control system, the mixed liquid is fully mixed to form a foam fire extinguishing blanket with uniform granularity and difficult breaking, the foam fire extinguishing blanket is adhered to the surface of a combustion object and permeates the inside of the combustion object, the oxygen isolation and cooling effects are achieved, and the rapid and efficient fire extinguishing of a large-scale oil fire disaster is realized. In recent years, the compressed air foam fire extinguishing system is widely applied to extra-high voltage converter stations and substations, is used for protecting the converter transformer and the transformer from fire and has good effect.
Along with the gradual propulsion of new energy, various forms of energy storage systems are gradually spread and used in the market, wherein the submerged liquid cooling energy storage system is expected to obtain great market heat with the advantages of high electricity storage quantity, low loss and the like. At present, the liquid used for immersion can be selected as the fluorinated liquid and the oil refrigerant, however, the fluorinated liquid currently selected mainly has high unit price, natural dissipation exists in the using process, and the overall economy is not high, so the research and the application of the oil refrigerant for the immersion liquid cooling energy storage scheme are gradually in depth, and the fire extinguishing system used as the safety guarantee of the energy storage system also has to be updated gradually.
The existing immersed liquid cooling energy storage system cooling liquid is fluorinated liquid and is non-flammable liquid, so that the fire extinguishing means mainly adopts gas to extinguish fire, such as heptafluoropropane or perfluorinated hexanone, and the like, and the effects of reducing temperature and inhibiting combustion can be achieved for electric fire formed by the energy storage system, and finally the aim of extinguishing fire is achieved. However, the effect of the conventional gas fire extinguishing and fire fighting against oil fire is poor, so that if the cooling liquid of the immersed energy storage system is changed from the fluorinated liquid to the oil refrigerant, a supplementary fire extinguishing device capable of extinguishing the oil fire is urgently needed, and the supplementary fire extinguishing device is used as the final guarantee of the oil refrigerant immersed liquid cooling energy storage system, so that the larger loss caused by further spreading of the fire is avoided.
The compressed air fire extinguishing device in the prior art has various structures, the first type of the compressed air fire extinguishing device comprises a compressed air supply module, a fire water supply module, a foam liquid supply module and a mixed foam liquid-compressed air generation module, wherein the compressed air supply module, the fire water supply module and the foam liquid supply module are respectively connected with the mixed foam liquid-compressed air generation module, the mixed foam liquid-compressed air generation module is connected with an engineering site injection device, and the compressed air supply module, the fire water supply module and the foam liquid supply module of the technical scheme are all required to provide power, so that the whole structure needs a power distribution cabinet and a logic control device, the whole structure occupies large space, the debugging and the installation of the whole structure in the engineering site are complex, and the requirements for fire matched supply and high integration of the energy storage market which are rapidly spread are difficult to meet;
The second type of compressed air fire extinguishing device comprises a mounting frame and a gas cylinder, a first liquid tank, a second liquid tank, a mixer, a spray gun and a connecting pipe assembly which are arranged on the mounting frame, and although the fire extinguishing device of the type has the advantages of simple structure and small occupied area relative to the first structure, the gas cylinder at the gas supply end of the fire extinguishing device is required to be provided with a high-pressure gas cylinder, the high-pressure gas cylinder belongs to special equipment, the actual gas storage capacity cannot be too large, the quantity of the generated compressed air foam is limited, and the fire extinguishing effect is influenced.
Disclosure of utility model
The purpose of the utility model is that: the compressed air foam fire extinguishing device is high in integration level, small in occupied space, high in use safety, convenient to maintain, and applicable to multiple scenes due to modularized flexible design.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: a compressed air foam fire extinguishing device is characterized in that: comprises a pressure buffer tank, a liquid supplementing mechanism for injecting foam mixed liquid, a compressed air inlet mechanism for supplementing compressed air, a gas-liquid mixing mechanism for mixing the foam mixed liquid and the compressed air, a pressure detection and adjustment mechanism for detecting and adjusting the inside of the pressure buffer tank and a liquid draining mechanism for draining the mixed liquid in the pressure buffer tank,
The top of the pressure buffer tank is provided with a liquid supplementing mechanism, a compressed air inlet mechanism, a gas-liquid mixing mechanism and a pressure detection and adjustment mechanism which are communicated with the inner cavity of the pressure buffer tank, the compressed air inlet mechanism is communicated with the gas-liquid mixing mechanism, and the bottom of the pressure buffer tank is provided with a liquid draining mechanism which is communicated with the pressure buffer tank.
In the above technical scheme, the fluid infusion mechanism includes flange, flange lid and fluid infusion manual valve, the flange welding is at the top of pressure buffer tank and be linked together with its inner chamber, the opening of flange is sealed through the flange lid, the flange lid is equipped with the fluid infusion pipe, and is equipped with the fluid infusion manual valve on the pipeline of fluid infusion pipe.
In the above technical scheme, the compressed air inlet mechanism comprises an air inlet pipeline and an air regulating valve, one end of the air inlet pipeline is communicated with one end of the air regulating valve, and the other end of the air regulating valve is communicated with the pressure buffer tank and the gas-liquid mixing mechanism.
In the above technical scheme, gas-liquid mixing mechanism includes gas-liquid mixer, foam governing valve and switch ball valve, gas-liquid mixer's air inlet is linked together with compressed air inlet mechanism, gas-liquid mixer's inlet is linked together with pressure buffer tank through the foam governing valve, gas-liquid mixer's exit link is equipped with switch ball valve.
In the above technical scheme, the pressure detection and adjustment mechanism comprises a pressure gauge, a safety valve and a pressure relief valve, wherein the pressure gauge, the safety valve and the pressure relief valve are respectively communicated with the pressure buffer tank.
In the technical scheme, the pressure gauge is provided with the manual overhaul valve in welded connection, and the safety valve and the pressure relief valve are both provided with the manual overhaul valve in welded and threaded combination.
In the above technical scheme, the liquid draining mechanism comprises a liquid draining pipe, one end of the liquid draining pipe is communicated with the bottom of the pressure buffer tank, and a liquid draining ball valve is arranged on a liquid draining pipe line.
In the above technical scheme, still include the liquid level gauge, the body of pressure buffer tank is equipped with the lateral pipe of arranging from top to bottom, the both ends of liquid level gauge are linked together with the lateral pipe that corresponds through the screw thread quick-screw joint respectively.
In the technical scheme, the liquid level meter is a transparent tetrafluoro tube, and is matched with a floating ball liquid level switch in the pressure buffer tank.
In the above technical scheme, the compressed air mixing device further comprises a three-way pipe, the compressed air inlet mechanism comprises an air regulating valve, the air-liquid mixing mechanism comprises a gas-liquid mixer, and the other end of the air regulating valve, an air inlet of the gas-liquid mixer and the pressure buffer tank are communicated through the three-way pipe.
The utility model has the positive effects that: after the compressed air foam fire extinguishing device of the utility model is adopted, as the device comprises the pressure buffer tank, the liquid supplementing mechanism for injecting the foam mixed liquid, the compressed air inlet mechanism for supplementing the compressed air, the gas-liquid mixing mechanism for mixing the foam mixed liquid and the compressed air, the pressure detection and adjustment mechanism for detecting and adjusting the inside of the pressure buffer tank and the liquid draining mechanism for draining the mixed liquid in the pressure buffer tank,
The top of the pressure buffer tank is provided with a liquid supplementing mechanism, a compressed air inlet mechanism, a gas-liquid mixing mechanism and a pressure detection and adjustment mechanism which are communicated with the inner cavity of the pressure buffer tank, the compressed air inlet mechanism is communicated with the gas-liquid mixing mechanism, the bottom of the pressure buffer tank is provided with a liquid discharging mechanism which is communicated with the pressure buffer tank, therefore, the utility model has high integration level and small occupied space,
When the pressure buffer tank is used, the compressed air inlet mechanism is externally connected with the compressed air generating device, foam mixed liquid is injected into the pressure buffer tank through the liquid supplementing mechanism in advance, and the foam mixed liquid and the compressed air are mixed through the gas-liquid mixing mechanism and then sprayed out.
Compared with the prior art, the utility model does not need a power distribution cabinet and a logic control device, not only has small occupied area of the whole structure, but also simplifies the complexity of debugging and installation of engineering field application, has convenient operation and high safety, and can ensure the fire extinguishing effect. Meanwhile, the air supply interface of the device designed by the utility model can be adapted to an electric air compressor and a high-pressure air cylinder, has modularized flexible design, and is applicable to multiple scenes.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment of the present utility model;
Fig. 2 is an enlarged schematic view of the top of the can of fig. 1.
Detailed Description
The utility model is further illustrated, but not limited, by the following examples in connection with the accompanying drawings.
As shown in fig. 1 and 2, a compressed air foam fire extinguishing apparatus comprises a pressure buffer tank 1, a liquid supplementing mechanism 2 for injecting foam mixed liquid, a compressed air inlet mechanism 3 for supplementing compressed air, a gas-liquid mixing mechanism 4 for mixing the foam mixed liquid and the compressed air, a pressure detection and adjustment mechanism 5 for detecting and adjusting the inside of the pressure buffer tank 1, and a liquid discharging mechanism 6 for discharging the mixed liquid in the pressure buffer tank 1,
The top of the pressure buffer tank 1 is provided with a liquid supplementing mechanism 2, a compressed air inlet mechanism 3, a gas-liquid mixing mechanism 4 and a pressure detection and adjustment mechanism 5 which are communicated with the inner cavity of the pressure buffer tank, the compressed air inlet mechanism 3 is communicated with the gas-liquid mixing mechanism 4, and the bottom of the pressure buffer tank 1 is provided with a liquid draining mechanism 6 which is communicated with the pressure buffer tank.
As shown in fig. 1 and 2, in order to timely supplement liquid into the pressure buffer tank and ensure the tightness of the injection port, the liquid supplementing mechanism 2 comprises a flange 21, a flange cover 22 and a liquid supplementing manual valve 23, the flange 21 is welded at the top of the pressure buffer tank 1 and is communicated with the inner cavity of the pressure buffer tank, an opening of the flange 21 is sealed by the flange cover 22, the flange cover 22 is provided with a liquid supplementing pipe 24, and a liquid supplementing manual valve 23 is arranged on a pipeline of the liquid supplementing pipe 24. The liquid replenishing manual valve 23 is a switch ball valve, on one hand, when liquid replenishing is not needed, the switch ball valve can be controlled to ensure that a liquid replenishing port is in a closed state, on the other hand, the device is convenient to connect with a hose, and an external liquid replenishing pump is used for manually or automatically replenishing liquid into the tank body through the hose.
As shown in fig. 1 and 2, in order to facilitate the entry of compressed gas, the compressed air intake mechanism 3 includes an intake pipe 31 and an air regulating valve 32, one end of the intake pipe 31 is communicated with one end of the air regulating valve 32, and the other end of the air regulating valve 32 is communicated with the pressure buffer tank 1 and the gas-liquid mixing mechanism 4. The air regulating valve 32 is preferably a needle valve, which can realize micro-adjustment of air flow, and has high accuracy, and when in use, the other end of the air inlet pipe 31 is externally connected with a compressed air generating device, and the compressed air generating device can be used for air inlet in an electric control mode of an air compressor or in a manual control mode of a high-pressure air bottle.
As shown in fig. 1 and 2, in order to achieve rapid and sufficient mixing of the compressed air and the foam mixed liquid, the gas-liquid mixing mechanism 4 comprises a gas-liquid mixer 41, a foam regulating valve 42 and a switch ball valve 43, an air inlet of the gas-liquid mixer 41 is communicated with the compressed air inlet mechanism 3, a liquid inlet of the gas-liquid mixer 41 is communicated with the pressure buffer tank 1 through the foam regulating valve 42, and an outlet section of the gas-liquid mixer 41 is provided with the switch ball valve 43. The foam regulating valve 42 is preferably a gate valve, because the flow of the gate valve is more convenient to regulate, and the gas-liquid mixer 41 and the foam regulating valve 42 are connected by any means, so that the gas-liquid mixer is convenient to replace in a modularized manner.
As shown in fig. 1 and 2, the pressure detection and adjustment mechanism 5 includes a pressure gauge 51, a relief valve 52, and a relief valve 53, and the pressure gauge 51, the relief valve 52, and the relief valve 53 are respectively communicated with the pressure buffer tank 1.
As shown in fig. 1 and 2, for convenient maintenance and overhaul, the pressure gauge 51 is provided with a manual overhaul valve in welded connection, and the safety valve 52 and the pressure relief valve 53 are both provided with a manual overhaul valve in welded and threaded connection. The specific structural form is that the pressure gauge 51, the safety valve 52 and the pressure relief valve 53 are provided with maintenance valves, so that the system can realize on-line maintenance of key components.
As shown in fig. 1 and 2, in order to timely discharge the foam mixture, the liquid discharge mechanism 6 includes a liquid discharge pipe 61, one end of the liquid discharge pipe 61 is connected to the bottom of the buffer tank 1, and a liquid discharge ball valve 62 is provided on a pipeline of the liquid discharge pipe 61.
As shown in fig. 1 and 2, in order to timely know the liquid level state of the liquid in the current tank body, the pressure buffer tank further comprises a liquid level meter 7, a tank body of the pressure buffer tank 1 is provided with a branch pipe 11 which is arranged up and down, and two ends of the liquid level meter 7 are respectively communicated with the corresponding branch pipe 11 through screw threads of a quick screwing joint.
Further, the liquid level meter 7 is a transparent tetrafluoro tube, and the liquid level meter 7 is matched with a floating ball liquid level switch in the pressure buffer tank 1. The utility model can observe the residual quantity of the internal liquid in real time through the transparent tetrafluoro tube, has simple structure and no need of maintenance, and the liquid level meter 7 is matched with a floating ball liquid level switch in the pressure buffer tank 1, so that the system can be prompted to timely supplement liquid when the liquid level is too low.
As shown in fig. 1 and 2, in order to realize that the compressed air and the foam mixed liquid are mixed and sprayed out after entering the gas-liquid mixer 41 through the corresponding channels, the compressed air inlet mechanism 3 comprises an air regulating valve 32, the gas-liquid mixing mechanism 4 comprises the gas-liquid mixer 41, and the other end of the air regulating valve 32, the air inlet of the gas-liquid mixer 41 and the pressure buffer tank 1 are communicated through the three-way pipe 8.
As shown in fig. 1, the bottom of the pressure buffer tank 1 is provided with a tank body supporting leg 12 in welded connection, and the bottom of the tank body supporting leg 12 is provided with a stainless steel or carbon steel bottom plate, and the bottom plate is provided with a through hole, so that the pressure buffer tank can be in bolt connection with the outside, and can also be directly welded and fixed.
When the utility model is used, the air inlet pipeline 31 of the compressed air inlet mechanism 3 is externally connected with a compressed air generating device, and can realize micro-adjustment of air flow through the air regulating valve 32, the liquid allowance in the pressure buffer tank 1 is observed in real time according to the liquid level meter 7, when the liquid level is too low, the system can be prompted to timely supplement liquid, foam mixed liquid is communicated through a liquid supplementing manual valve 23 through a flexible pipe external liquid adding pump, manual or automatic liquid supplementing can be carried out in the tank body,
The foam mixed liquid in the pressure buffer tank 1 and the compressed air output by the air inlet pipeline 31 enter the gas-liquid mixer 41 to be mixed and then sprayed out, so that the problem that the conventional gas fire fighting can not extinguish the oil fire is essentially solved.
The safety valve 52 plays a role in safety protection in the device, and if the pressure gauge 51 displays that the actual pressure value in the pressure buffer tank 1 exceeds a specified value, the safety valve 52 is in an open state, so that the system is ensured not to have accidents due to over-high pressure, or the pressure relief valve 53 is opened to implement pressure relief, and the pressure in the pressure buffer tank 1 can be ensured to be in a safe state.
The top of the pressure buffer tank 1 is provided with the liquid supplementing mechanism 2, the compressed air inlet mechanism 3, the gas-liquid mixing mechanism 4 and the pressure detection and adjustment mechanism 5 which are communicated with the inner cavity of the pressure buffer tank, the compressed air inlet mechanism 3 is communicated with the gas-liquid mixing mechanism 4, and the bottom of the pressure buffer tank 1 is provided with the liquid draining mechanism 6 which is communicated with the pressure buffer tank, so that the pressure buffer tank can be suitable for an electric air compressor or a high-pressure air bottle for supplementing air. Compared with the prior art, the utility model does not need a power distribution cabinet and a logic control device, not only has small occupied area of the whole structure and simplifies the debugging and installation complexity of the engineering field application, but also has convenient operation and high safety, is suitable for various air supplementing forms such as an electric air compressor, a high-pressure air bottle and the like, and can ensure the fire extinguishing effect due to the modularized flexible design.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A compressed air foam fire extinguishing device, characterized in that: comprises a pressure buffer tank (1), a liquid supplementing mechanism (2) for injecting foam mixed liquid, a compressed air inlet mechanism (3) for supplementing compressed air, a gas-liquid mixing mechanism (4) for mixing the foam mixed liquid and the compressed air, a pressure detection and adjustment mechanism (5) for detecting and adjusting the inside of the pressure buffer tank (1) and a liquid draining mechanism (6) for draining the mixed liquid in the pressure buffer tank (1),
The top of pressure buffer tank (1) is equipped with fluid infusion mechanism (2), compressed air inlet mechanism (3), gas-liquid mixing mechanism (4) and pressure detection adjustment mechanism (5) that are linked together rather than the inner chamber, and compressed air inlet mechanism (3) are linked together with gas-liquid mixing mechanism (4), the bottom of pressure buffer tank (1) is equipped with flowing back mechanism (6) rather than being linked together.
2. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: the liquid supplementing mechanism (2) comprises a flange (21), a flange cover (22) and a liquid supplementing manual valve (23), wherein the flange (21) is welded at the top of the pressure buffer tank (1) and is communicated with the inner cavity of the pressure buffer tank, an opening of the flange (21) is sealed through the flange cover (22), the flange cover (22) is provided with a liquid supplementing pipe (24), and the liquid supplementing manual valve (23) is arranged on a pipeline of the liquid supplementing pipe (24).
3. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: the compressed air inlet mechanism (3) comprises an air inlet pipeline (31) and an air regulating valve (32), one end of the air inlet pipeline (31) is communicated with one end of the air regulating valve (32), and the other end of the air regulating valve (32) is communicated with the pressure buffer tank (1) and the air-liquid mixing mechanism (4).
4. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: the gas-liquid mixing mechanism (4) comprises a gas-liquid mixer (41), a foam regulating valve (42) and a switch ball valve (43), an air inlet of the gas-liquid mixer (41) is communicated with the compressed air inlet mechanism (3), a liquid inlet of the gas-liquid mixer (41) is communicated with the pressure buffer tank (1) through the foam regulating valve (42), and a switch ball valve (43) is arranged on an outlet section of the gas-liquid mixer (41).
5. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: the pressure detection and adjustment mechanism (5) comprises a pressure gauge (51), a safety valve (52) and a pressure relief valve (53), and the pressure gauge (51), the safety valve (52) and the pressure relief valve (53) are respectively communicated with the pressure buffer tank (1).
6. The compressed air foam fire extinguishing apparatus according to claim 5, wherein: the pressure gauge (51) is provided with a manual overhaul valve in welded connection, and the safety valve (52) and the pressure relief valve (53) are both provided with a manual overhaul valve in welded and threaded combination.
7. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: the liquid draining mechanism (6) comprises a liquid draining pipe (61), one end of the liquid draining pipe (61) is communicated with the bottom of the pressure buffer tank (1), and a liquid draining ball valve (62) is arranged on a pipeline of the liquid draining pipe (61).
8. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: still include liquid level gauge (7), the body of pressure buffer tank (1) is equipped with branch pipe (11) of arranging from top to bottom, the both ends of liquid level gauge (7) are linked together with corresponding branch pipe (11) through screw thread quick-operation joint respectively.
9. The compressed air foam fire extinguishing apparatus according to claim 8, wherein: the liquid level meter (7) is a transparent tetrafluoro tube, and the liquid level meter (7) is matched with a floating ball liquid level switch in the pressure buffer tank (1).
10. The compressed air foam fire extinguishing apparatus according to claim 1, wherein: still include three-way pipe (8), compressed air inlet mechanism (3) include air regulating valve (32), gas-liquid mixing mechanism (4) include gas-liquid mixer (41), the other end of air regulating valve (32), the air inlet of gas-liquid mixer (41) and pressure buffer tank (1) are linked together through three-way pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322735620.7U CN221014271U (en) | 2023-10-11 | 2023-10-11 | Compressed air foam fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322735620.7U CN221014271U (en) | 2023-10-11 | 2023-10-11 | Compressed air foam fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221014271U true CN221014271U (en) | 2024-05-28 |
Family
ID=91134236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322735620.7U Active CN221014271U (en) | 2023-10-11 | 2023-10-11 | Compressed air foam fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221014271U (en) |
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2023
- 2023-10-11 CN CN202322735620.7U patent/CN221014271U/en active Active
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