CN209011868U - Fire extinguishing device - Google Patents
Fire extinguishing device Download PDFInfo
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- CN209011868U CN209011868U CN201821877447.7U CN201821877447U CN209011868U CN 209011868 U CN209011868 U CN 209011868U CN 201821877447 U CN201821877447 U CN 201821877447U CN 209011868 U CN209011868 U CN 209011868U
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- liquid nitrogen
- storage tank
- fire extinguishing
- carbon dioxide
- extinguishing device
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Abstract
The utility model discloses a kind of fire extinguishing devices, including liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank, gasification module and control module, control module connection controls the liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank and gasification module；The module that gasifies includes sequentially connected gasification installation, electric heater unit, voltage stabilization and current stabilization device, metering device and delivery main；Liquid nitrogen storage tank connects liquid nitrogen supercharging device, and liquid nitrogen supercharging device and carbon dioxide storage tank are separately connected gasification installation.The fire extinguishing device can be prevented fires using nitrogen and utilize carbon-dioxide fire engine again, and safely, saving space and resource, high-efficient.
Description
Technical field
The utility model relates to technical field of mine safety more particularly to a kind of fire extinguishing devices.
Background technique
Currently, mainly carrying out fire extinguishing operation using following three kinds of modes in field of coal mine safety: (1) using ground wheat flour
Nitrogen system, and given nitrogen obtained to underground fire extinguishing area using pipe-line system, although nitrogen ability processed is big for the technical solution, but
That equipment of making nitrogen land occupation in ground is big, investment is high, energy consumption is high, need special operation and maintenance team, operation and maintenance amount it is big；
(2) the preventing and extinguishing fire technologies means such as grouting, gel, foam, still, mine fire location are hidden, differentiate flame range difficulty it is big, mud or
The coverage area of person's colloid is small, and range of scatter is limited, is not easy to reach fire location, and be easy to cause flame range environmental pollution；(3) well
Direct fluid injection nitrogen fire extinguishing down, still, since the temperature of liquid nitrogen can reach -196 DEG C, entire line temperature can be made very by directly infusing nitrogen
Low, pipeline uses stainless steel material, and investment is high；(4) current fire extinguishing device is typically respectively arranged, for example, individually
Fireproofing is carried out using nitrogen, individually carries out fire-fighting work using carbon dioxide, fire extinguishing work cannot timely into
Row switching.
In conclusion being badly in need of a kind of safety in the prior art, saving space and resource, is high-efficient, nitrogen can be utilized
Fire prevention can utilize the fire extinguishing device of carbon-dioxide fire engine again.
Summary of the invention
In view of the foregoing defects the prior art has, the utility model proposes a kind of new fire extinguishing devices.This prevents going out
Fiery device can be prevented fires using nitrogen and utilize carbon-dioxide fire engine again, and safely, saving space and resource, high-efficient.
The utility model, which is that the following technical solution is employed, to be realized:
A kind of fire extinguishing device, including liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank, gasification module and control
Molding block, control module connection control the liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank and gasification module；Gas
Changing module includes sequentially connected gasification installation, electric heater unit, voltage stabilization and current stabilization device, metering device and delivery main；Liquid
Nitrogen storage tank connects liquid nitrogen supercharging device, and liquid nitrogen supercharging device and carbon dioxide storage tank are separately connected gasification installation.
Further, liquid nitrogen supercharging device passes through bypass duct with carbon dioxide storage tank respectively and connects voltage stabilization and current stabilization device.
Further, voltage stabilization and current stabilization device is provided with nitrogen inlet and carbon dioxide entrance.
Further, nitrogen inlet and carbon dioxide entrance are provided with the direct-operated regulator with pilot valve.
Further, liquid nitrogen storage tank is provided with liquid outlet, and liquid nitrogen supercharging device connects liquid outlet by delivery pipe.
Further, liquid nitrogen storage tank is provided with gas returning port, and liquid nitrogen supercharging device connects gas returning port by return pipe.
Further, return-air valve is provided on gas returning port.
Further, liquid nitrogen storage tank is provided with gas discharge outlet, and gas discharge outlet is connected with by pipeline adds sky release
Thermal.
Further, gas-discharging valve is provided on gas discharge outlet.
Further, control module is PLC control system.
The beneficial effects of the utility model are:
(1) the fire extinguishing device of the utility model is provided with gasification module, realizes liquid nitrogen and titanium dioxide by gasification module
The gasification of carbon can be carried out in ground depletion region, frostbite caused by observing there is no operator because of short distance or asphyxia danger
Evil, it is highly-safe.
(2) the fire extinguishing device of the utility model can realize uninterrupted continuous nitrogen injection or carbon dioxide injection, due to gasification
Equal operations are carried out on well, and underground need to only lay the line, and laying of the pipeline in underground is simple, investment is small, and
Liquid nitrogen or carbon dioxide are injected in underground directly, just cannot achieve continuous work.Such as using fluid injection nitrogen, titanium dioxide on well
Carbon, then pipeline is liquid phase pipeline, and there are frostbite risks for underground pipeline, and pipeline is needed using low temperature resistant stainless steel, and investment is very
Height, and a large amount of water mist will be generated in fire extinguishing operating space, while a large amount of heat sources needed for liquid nitrogen gasification can not be replenished in time,
Influence gasification rate.
(3) the fire extinguishing device of the utility model is provided with liquid nitrogen storage tank, liquid nitrogen supercharging device and carbon dioxide storage tank,
Both can gasify liquid nitrogen, and can also gasify carbon dioxide, liquid nitrogen can be used both to prevent fires, and can also have been gone out using carbon dioxide
Fire, strong applicability.
(4) the liquid nitrogen supercharging device of the fire extinguishing device of the utility model and the carbon dioxide storage tank are separately connected institute
Gasification installation is stated, that is, gasify the shared device that module is gasification liquid nitrogen and carbon dioxide, and investment is more saved.
(5) the fire extinguishing device of the utility model is provided with control module, can realize long-range control, prison by control module
Depending on automatization level is higher, can protect operator to greatest extent.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the fire extinguishing device of the utility model.
Fig. 2 is the second structural representation of the fire extinguishing device of the utility model.
In figure: 1, liquid nitrogen storage tank；2, liquid nitrogen supercharging device；3, carbon dioxide storage tank；4, gasification installation；5, electric heating fills
It sets；6, voltage stabilization and current stabilization device；7, metering device；8, delivery main.
Specific embodiment
In order to which the utility model aim, technical solution is more clearly understood, with reference to the accompanying drawing, the utility model is made
It is further described.It should be appreciated, however, that element, knot in the case where not being further discussed below, in an embodiment
Structure and feature can also be advantageously incorporated into other embodiments.
Embodiment:
As depicted in figs. 1 and 2, a kind of fire extinguishing device, including the storage of liquid nitrogen storage tank 1, liquid nitrogen supercharging device 2, carbon dioxide
Tank 3, gasification module and control module, control module connection control the liquid nitrogen storage tank 1, liquid nitrogen supercharging device 2, carbon dioxide
Storage tank 3 and gasification module；Gasification module include sequentially connected gasification installation 4, electric heater unit 5, voltage stabilization and current stabilization device 6,
Metering device 7 and delivery main 8；Liquid nitrogen storage tank 1 connects liquid nitrogen supercharging device 2, liquid nitrogen supercharging device 2 and carbon dioxide storage
Tank 3 is separately connected gasification installation 4.
Liquid nitrogen supercharging device 2 connects voltage stabilization and current stabilization device 6 by bypass duct respectively with carbon dioxide storage tank 3.Pressure stabilizing is steady
Stream device 6 is provided with nitrogen inlet and carbon dioxide entrance.Nitrogen inlet and carbon dioxide entrance are provided with pilot valve
Direct-operated regulator.Liquid nitrogen storage tank 1 is provided with liquid outlet, and liquid nitrogen supercharging device 2 connects liquid outlet by delivery pipe.Liquid nitrogen storage tank
1 is provided with gas returning port, and liquid nitrogen supercharging device 2 connects gas returning port by return pipe.Return-air valve is provided on gas returning port.Liquid nitrogen storage tank
1 is provided with gas discharge outlet, and gas discharge outlet is connected with by pipeline and diffuses heating device to sky.It is provided on gas discharge outlet
Gas-discharging valve.Control module is PLC control system.
The utility model use process is as follows:
The liquid outlet of liquid nitrogen storage tank connects liquid nitrogen supercharging device by delivery pipe, improves liquid nitrogen by liquid nitrogen supercharging device
Discharge pressure is to 1.5MPa.Liquid nitrogen flows through gasification installation after being pressurized, and heat exchange is carried out by cross-ventilation, by -196 DEG C of liquid
Nitrogen heating and gasifying.Medium is gas-liquid two-phase state in gasification installation, and liquid nitrogen enters pipe after sufficiently gasifying in the gasification installation
Road.The nitrogen temperature in the exit of gasification installation is 10 DEG C usually lower than environment temperature.When environment temperature is lower than -10 DEG C, gasification
The pipeline of device to electric heater unit is easy to frosting, and control module opens electric heater unit and continues to heat to nitrogen at this time.If
When the pipeline of gasification installation to electric heater unit is higher than -10 DEG C without frost or environment temperature, it can not have to open electric add
Nitrogen is directly delivered to voltage stabilization and current stabilization device through the bypass duct of electric heater unit by thermal.Whole process can pass through control
Module realizes automatic interlock operation.
The nitrogen inlet pressure of voltage stabilization and current stabilization device is 1.2~1.5 MPa, and nitrogen outlet is 1.0 ± 0.01MPa.Nitrogen
Inlet is flowed into metering dress equipped with direct-operated regulator (band pilot valve), the pressure of inlet Nitrogen gas with the pressure stabilizing of 1.0MPa
In setting.Nitrogen is sent into underground coal mine general pipeline from the metering device that is exported to of voltage stabilization and current stabilization device after metering.
Cryogenic gas in liquid nitrogen supercharging device is back in liquid nitrogen storage tank, and liquid nitrogen supercharging device can generate in running
A small amount of cryogenic gas in order to ensure the pressure balance of liquid nitrogen storage tank when operation and reduces fluctuation, and liquid nitrogen supercharging device generates
Cryogenic gas should flow back into the gas returning port in liquid nitrogen storage tank.
Low-temperature storage tank liquid outlet connects storage tank supercharging device by delivery pipe, and liquid nitrogen gasification is become after gaseous state through pressure regulator
Pressure regulation, pressure regulation send outlet pressure stabilization in liquid nitrogen storage tank gas-phase space nitrogen in 0.2MPa, then by return pipe back to, make liquid
Nitrogen pressure of storage tank increases.When liquid nitrogen storage tank is run, liquid nitrogen pressurization dress is switched on when pressure is lower than 0.1MPa in liquid nitrogen storage tank
It sets.
The gas discharge pipe mouth of liquid nitrogen storage tank is to sky release heating device emptying.Liquid nitrogen storage tank under inoperative operating condition
When interior pressure rise is to 0.22MPa or more, the gas-discharging valve of liquid nitrogen storage tank is automatically turned on, cryogenic gas in tank body is arranged
It puts to sky release heating device and heats, then drain into Atmosphere System；When the pressure in liquid nitrogen storage tank drops to 0.19MPa
When, the gas-discharging valve on liquid nitrogen storage tank is automatically closed.When to sky release heating means exit thermometer displays temperature it is relatively low, one
As situation be lower than 5 DEG C of environment temperature when, the aperture of the device inlet valve should suitably reduce.
Liquid carbon dioxide in carbon dioxide storage tank is sent through carbon dioxide pipeline to gasification installation.Flow of liquid carbon dioxide
Through gasification installation, heat exchange is carried out for -17 DEG C of liquid carbon dioxide heating and gasifying by cross-ventilation.In gasification installation
Medium is gas-liquid two-phase state, and liquid carbon dioxide flows through delivery pipe, gasification installation carbon dioxide after the device sufficiently gasifies
Exit carbon dioxide temperature is 10 DEG C usually lower than environment temperature, when environment temperature is lower than -10 DEG C, gasification installation to electric heating
The pipeline of device is easy to frosting, and electric heater unit should be opened and continue to heat to carbon dioxide at this time；If gasification installation to electricity adds
When thermal pipeline is shown without frost or thermometer higher than -10 DEG C, it can not have to open electric heater unit, directly will
Carbon dioxide is delivered to voltage stabilization and current stabilization device through electric heater unit bypass duct, and whole process can realize that automatic interlock is run.Surely
1.2~1.5 MPa of constant-current stabilizer carbon dioxide inlet pressure is pressed, is exported as 1.0 ± 0.01MPa, inlet is equipped with self-operated type tune
Valve (band pilot valve) is saved, the pressure stabilizing of entrance pressure carbon dioxide is flowed into Horizontal buffer storage tank in 1.0MPa.Carbon dioxide from
Voltage stabilization and current stabilization device is exported to metering device and is sent into underground coal mine fire extinguishing gas main after metering.
In addition, being converted into before note nitrogen, Ying Liyong liquid nitrogen supercharging device purges gasification installation after having infused carbon dioxide
To the pipeline between stable-pressure device.
The above is only the preferred embodiment of the present invention and oneself, not with the utility model be limitation, it is all this
Made impartial modifications, equivalent substitutions and improvements etc., should be included in the utility model within the spirit and principle of utility model
Patent covering scope in.
Claims (10)
1. a kind of fire extinguishing device, which is characterized in that including liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank, gasified pattern
Block and control module, control module connection control the liquid nitrogen storage tank, liquid nitrogen supercharging device, carbon dioxide storage tank and
Gasify module；
The gasification module includes sequentially connected gasification installation, electric heater unit, voltage stabilization and current stabilization device, metering device and defeated
Send general pipeline；
The liquid nitrogen storage tank connects the liquid nitrogen supercharging device, the liquid nitrogen supercharging device and carbon dioxide storage tank difference
Connect the gasification installation.
2. fire extinguishing device according to claim 1, which is characterized in that the liquid nitrogen supercharging device and the carbon dioxide
Storage tank passes through bypass duct respectively and connects the voltage stabilization and current stabilization device.
3. fire extinguishing device according to claim 2, which is characterized in that the voltage stabilization and current stabilization device is provided with nitrogen inlet
With carbon dioxide entrance.
4. fire extinguishing device according to claim 3, which is characterized in that the nitrogen inlet and carbon dioxide entrance are all provided with
It is equipped with the direct-operated regulator with pilot valve.
5. fire extinguishing device according to claim 1, which is characterized in that the liquid nitrogen storage tank is provided with liquid outlet, described
Liquid nitrogen supercharging device connects the liquid outlet by delivery pipe.
6. fire extinguishing device according to claim 1, which is characterized in that the liquid nitrogen storage tank is provided with gas returning port, described
Liquid nitrogen supercharging device connects the gas returning port by return pipe.
7. fire extinguishing device according to claim 6, which is characterized in that be provided with return-air valve on the gas returning port.
8. fire extinguishing device according to claim 1, which is characterized in that the liquid nitrogen storage tank is provided with gas discharge outlet,
The gas discharge outlet is connected with by pipeline and diffuses heating device to sky.
9. fire extinguishing device according to claim 8, which is characterized in that be provided with gas discharge on the gas discharge outlet
Valve.
10. fire extinguishing device according to claim 1, which is characterized in that the control module is PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877447.7U CN209011868U (en) | 2018-11-15 | 2018-11-15 | Fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877447.7U CN209011868U (en) | 2018-11-15 | 2018-11-15 | Fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209011868U true CN209011868U (en) | 2019-06-21 |
Family
ID=66842390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821877447.7U Active CN209011868U (en) | 2018-11-15 | 2018-11-15 | Fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209011868U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402844A (en) * | 2019-08-23 | 2021-02-26 | 中国石油化工股份有限公司 | Liquid nitrogen foam fire-fighting equipment and foam fire-fighting truck |
| CN112843570A (en) * | 2021-01-27 | 2021-05-28 | 西安科技大学 | Fire extinguishing device and fire extinguishing method for mixed injection of liquid nitrogen and carbon dioxide |
| CN113606492A (en) * | 2021-08-06 | 2021-11-05 | 华信唐山石油装备有限公司 | Novel liquid nitrogen and liquid carbon dioxide fire preventing and extinguishing system and method |
-
2018
- 2018-11-15 CN CN201821877447.7U patent/CN209011868U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112402844A (en) * | 2019-08-23 | 2021-02-26 | 中国石油化工股份有限公司 | Liquid nitrogen foam fire-fighting equipment and foam fire-fighting truck |
| CN112843570A (en) * | 2021-01-27 | 2021-05-28 | 西安科技大学 | Fire extinguishing device and fire extinguishing method for mixed injection of liquid nitrogen and carbon dioxide |
| CN113606492A (en) * | 2021-08-06 | 2021-11-05 | 华信唐山石油装备有限公司 | Novel liquid nitrogen and liquid carbon dioxide fire preventing and extinguishing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200540 Shanghai city Jinshan District Jin Road No. 143 Patentee after: Zhongyiwude Engineering Co., Ltd Address before: 200540 Shanghai city Jinshan District Jin Road No. 143 Patentee before: ZHONGYI AMEC FOSTER WHEELER ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |