CN207538851U - With liquid CO 2 refrigeration fire extinguishing integral system in a kind of mine - Google Patents
With liquid CO 2 refrigeration fire extinguishing integral system in a kind of mine Download PDFInfo
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- CN207538851U CN207538851U CN201721684149.1U CN201721684149U CN207538851U CN 207538851 U CN207538851 U CN 207538851U CN 201721684149 U CN201721684149 U CN 201721684149U CN 207538851 U CN207538851 U CN 207538851U
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Abstract
The utility model discloses liquid CO is used in a kind of mine2Freeze fire extinguishing integral system, by installing CO in section air inlet2Evaporator, high-pressure liquid gasify heat absorption in evaporator, make CO2Evaporator cools down and absorbs the heat in tunnel, realizes working face in the pit cooling.Liquid CO2After gasification absorbs amount of heat in evaporator, into gaseous state CO2Transfer pipeline, by CO2Compressor is by low-pressure gaseous CO2It is compressed into high-pressure liquid CO2, by high-pressure liquid CO2Conveyance conduit is delivered to underground, realizes CO2It recycles.Liquid CO2In CO2In evaporator CO is formed after gasification absorbing and cooling temperature2Gas, by part CO2Pass through the first CO2Discharge conduit notes people goaf (oxidized zone), so as to inhibit the oxidation and spontaneous combustion of goaf coal, and has certain cooling effect to goaf.
Description
Technical field
The utility model is related to mine fire extinguishing field, with liquid CO in more particularly to a kind of mine2Freeze fire extinguishing one
Body system.
Background technology
With the intensification of coal mining depth in recent years and the raising of mining machines degree, many coal mine diggings in China
Working face temperature reaches 35 DEG C or more.When miner continues operation in the high temperature environment, function of human body will be caused to decline rapidly；Work
Efficiency reduces；Even cause human body heatstroke；Worker's alertness ability decline causes safety accident, drastically influence miner health with
Safety and the exploitation for hindering coal.Therefore, the prevention of heat evil becomes a urgent problem to be solved.Work on hand face cool-down method
Including：The modes such as mine ventilation, air compressed refrigeration cooling, ice block cooling, refrigeration air-conditioner, but above-mentioned cooling system is complicated,
It is higher to invest operating cost, and is unable to continued down.The design utilizes liquid CO2Gasification absorbs amount of heat, to down-hole mining
Working face cools down, and designs a set of cooling system that can continue refrigeration cool-down to underground.
Utility model content
The utility model is provided in a kind of mine with liquid CO2Freeze fire extinguishing integral system, can solve existing skill
The problem of continued down is unable in art, in mine in working face.
The utility model is provided in a kind of mine with liquid CO2Freeze fire extinguishing integral system, including liquid CO2Tank,
Gaseous state CO2Tank, liquid CO2Conveyance conduit and gaseous state CO2Transfer pipeline, the liquid CO2Tank and gaseous state CO2Tank be located at mine it
Outside；The liquid CO2The output terminal of tank passes through the first block valve and liquid CO2Conveyance conduit connects, the gaseous state CO2Tank it is defeated
Outlet by the second block valve also with CO2Conveyance conduit connects；The liquid CO2It is also set gradually from left to right on conveyance conduit
There are booster pump, pressure maintaining valve, first flow sensor, pressure transmitter, the first temperature sensor, the booster pump, pressure maintaining valve,
One flow sensor, pressure transmitter, the first temperature sensor are respectively positioned on except mine；The first temperature sensor right end
Liquid CO2Conveyance conduit enters in ore body from vertical and extends to section air inlet, the liquid CO in section air inlet2It is defeated
It send and several CO is installed on pipeline2Evaporator, the liquid CO2The end of conveyance conduit is mined out with being arranged on by three-way pipe
The first CO in area2Discharge conduit is connected, the first CO2The 5th block valve, have been set gradually from left to right in discharge conduit
Two flow sensors, the 5th block valve and the second flow sensor are respectively positioned in working face；In the working face also
It is provided with second temperature sensor and CO2Solubility sensor；The liquid CO2The end of conveyance conduit is also by three-way pipe with setting
Put the gaseous state CO in mine2One end of transfer pipeline is connected, the gaseous state CO2Outside the other end and ore body of transfer pipeline
Liquid CO2Conveyance conduit is connected, the gaseous state CO2Liquid CO outside the other end and ore body of transfer pipeline2Conveyance conduit connecting place
Between first flow sensor and pressure transmitter；The gaseous state CO2It is installed on the pipeline that transfer pipeline is located at outside ore body
There is a CO2Compressor, the CO2Compressor is used for gaseous state CO2It is compressed into liquid CO2；The gaseous state CO2Transfer pipeline position
In being additionally provided with third block valve on the pipeline outside ore body, the third block valve is located at CO2The left end of compressor；The gaseous state
CO2The 4th block valve is additionally provided on the pipeline that transfer pipeline is located in ore body, the 4th block valve is located at CO2Compressor
Right end；The gaseous state CO2The 2nd CO is additionally provided on the pipeline that transfer pipeline is located at outside ore body2Discharge conduit, the 2nd CO2
Discharge conduit is located at CO2Between compressor and the 4th block valve, the 2nd CO2The 6th block valve is provided in discharge conduit；Institute
State the first block valve, the second block valve, booster pump, pressure maintaining valve, first flow sensing, pressure transmitter, the first temperature sensor,
Third block valve, the 4th block valve, the 5th block valve, second flow sensor, second temperature sensor, CO2Solubility sensor
It is connected respectively with Computer signal.
Preferably, the CO2The number of evaporator is three.
Compared to the prior art the utility model, the advantage is that：
With liquid CO in a kind of mine provided by the utility model2Freeze fire extinguishing integral system, by cooling and prevents going out
Fire is combined, and while downhole cooling is carried out, appropriate CO2 is injected goaf, is cooled down to goaf and inhibits coal
Oxidation, prevents goaf coal spontaneous combustion.The system is furnished with instant fire extinguishment system, after spontaneous combustion occurs for goaf, the system
Start instant fire extinguishment system, coal spontaneous combustion is administered in time, prevents huge economic losses and safe thing caused by coal spontaneous combustion
Therefore.
Description of the drawings
Fig. 1 is uses liquid CO in a kind of mine provided by the utility model2Refrigeration fire extinguishing integral system structural representation
Figure；
Fig. 2 is three-way pipe connection diagram；
Fig. 3 is liquid CO2Transfer pipeline release end installation drawing.
Reference sign：
1st, liquid CO2Tank；2nd, gaseous state CO2Tank；3rd, the first block valve；4th, the second block valve；5th, booster pump；6th, pressure maintaining valve；7、
First flow sensor；8th, third block valve；9、CO2Compressor；10th, pressure transmitter；11st, the first temperature sensor；12、
Liquid CO2Conveyance conduit；13、CO2Evaporator；14th, the 4th block valve；15th, the 5th block valve；16th, second flow sensor；17、
First CO2Discharge conduit；18th, section air inlet；19th, second temperature sensor；20、CO2Solubility sensor；21st, working face；
22nd, goaf；23rd, section air return lane；24th, gaseous state CO2Transfer pipeline；25th, the 6th block valve；26th, the 2nd CO2Discharge conduit；
27th, three-way pipe.
Specific embodiment
Below in conjunction with the accompanying drawings, a specific embodiment of the utility model is described in detail, it is to be understood that this
The protection domain of utility model is not restricted by specific implementation.
As shown in Figs. 1-2, the utility model embodiment is provided in a kind of mine with liquid CO2The fire extinguishing that freezes is integrated
System, including liquid CO2Tank 1, gaseous state CO2Tank 2, liquid CO2Conveyance conduit 12 and gaseous state CO2Transfer pipeline 24, liquid CO2Tank 1
With gaseous state CO2Tank 2 is located at except mine, liquid CO2Tank provides liquid CO for system2, gaseous state CO2Tank provides gaseous state CO for system2；
Liquid CO2The output terminal of tank 1 passes through the first block valve 3 and liquid CO2Conveyance conduit 12 connects, and the first block valve is used to control liquid
State CO2Output, gaseous state CO2The output terminal of tank 2 by the second block valve 4 also with CO2Conveyance conduit 12 connects, the second block valve
For controlling gaseous state CO2Output；Liquid CO2Also be set gradually from left to right on conveyance conduit 12 booster pump 5, pressure maintaining valve 6,
First flow sensor 7, pressure transmitter 10, the first temperature sensor 11, booster pump are used to provide high-pressure liquid into pipeline
CO2, pressure maintaining valve for into conveyance conduit provide steady pressure liquid CO2, first flow sensor is for monitoring liquid CO2
Output quantity, the first temperature sensor be used for liquid CO2Temperature in conveyance conduit, booster pump 5, pressure maintaining valve 6, first flow sensing
Device 7, pressure transmitter 10, the first temperature sensor 11 are respectively positioned on except mine；The liquid CO of first temperature sensor, 11 right end2
Conveyance conduit 12 enters in ore body from vertical and extends to section air inlet 18, the liquid CO in section air inlet 182It is defeated
It send and several CO is installed on pipeline 122Evaporator 13, liquid CO2The end of conveyance conduit 12 is by three-way pipe 27 with being arranged on
The first CO in goaf 222Discharge conduit 17 is connected, the first CO2The 5th section has been set gradually from left to right in discharge conduit 17
Disconnected valve 15, second flow sensor 16, the 5th block valve 15 and second flow sensor 16 are respectively positioned in working face 21, working face
21 penetrate through with the section air return lane 23 in mine；Second temperature sensor 19 and CO are additionally provided in working face 212Solubility senses
Device 20；Liquid CO2The end of conveyance conduit 12 also passes through three-way pipe 27 and the gaseous state CO being arranged in mine2Transfer pipeline 24
One end is connected, gaseous state CO2Liquid CO outside the other end and ore body of transfer pipeline 242Conveyance conduit 12 is connected, gaseous state CO2It is defeated
Send the liquid CO outside the other end and ore body of pipeline 24212 connecting place of conveyance conduit is located at first flow sensor 7 and pressure becomes
It send between device 10；Gaseous state CO2One CO is installed on the pipeline that transfer pipeline 24 is located at outside ore body2Compressor 9, CO2Compressor 9
For by gaseous state CO2It is compressed into liquid CO2；Gaseous state CO2Third is additionally provided on the pipeline that transfer pipeline 24 is located at outside ore body to block
Valve 8, third block valve 8 are located at CO2The left end of compressor 9；Gaseous state CO2It is also set up on the pipeline that transfer pipeline 24 is located in ore body
There is the 4th block valve 14, the 4th block valve 14 is located at CO2The right end of compressor 9；Gaseous state CO2Transfer pipeline 24 is located at outside ore body
The 2nd CO is additionally provided on pipeline2Discharge conduit 26, the 2nd CO2Discharge conduit 26 is located at CO29 and the 4th block valve 14 of compressor
Between, the 2nd CO2The 6th block valve 25 is provided in discharge conduit 26；It is first block valve 3, the second block valve 4, booster pump 5, steady
Pressure valve 6, first flow sensing 7, pressure transmitter 10, the first temperature sensor 11, third block valve 8, the 4th block valve 14, the
Five block valves 15, second flow sensor 16, second temperature sensor 19, CO2Solubility sensor 20 respectively with Computer signal
It is connected.
Further, CO2The number of evaporator 13 is three.
Work step：
Step 1: lay liquid CO2Conveyance conduit：By liquid CO2Conveyance conduit enters ore body from vertical, footrill or inclined shaft
It is interior and extend to section air inlet, and in liquid CO2It installs to be higher than for pressure in one end that conveyance conduit is located at outside ore body
The gas or liquid of 3MPa~4MPa enters the booster pump in it.Liquid CO2Conveyance conduit is located at ore body one end and the first CO2It releases
It puts pipeline to be connected, the first CO2The discharge conduit other end is embedded in goaf.
Step 2: lay CO2Evaporator and gaseous state CO2Transfer pipeline：Liquid CO in the section air inlet of underground2Conveying
Multiple CO are installed on pipeline2Evaporator, liquid CO2Conveyance conduit end and gaseous state CO2Transfer pipeline, gaseous state CO2Transfer pipeline is another
One end and the liquid CO outside ore body2Conveyance conduit is connected.Gaseous state CO2Transfer pipeline, which is located on ore body Outer Tube, installs a CO2
Compression pump, CO2Compression pump is used for gaseous state CO2It is compressed into liquid CO2。
Step 3: after each pipeline and device install, to liquid CO2Gaseous state CO is injected in conveyance conduit2It boosts：Meter
Calculation machine opens the second block valve, booster pump, pressure maintaining valve, and pressure is higher than to the gaseous state CO of 3~4MPa2Inject liquid CO2Conveyance conduit
In, when manifold pressure is more than 4MPa, close the second block valve, booster pump, pressure maintaining valve.COMPUTER DETECTION pipeline after ten minutes
Whether interior pressure declines.If manifold pressure does not change, pipeline air-tightness is good, and computer prompted normally conveys, no
Then send out leakage early warning.When normal conveying, computer opens the second block valve, the 4th block valve, booster pump, pressure maintaining valve,
Continue to liquid CO2Gaseous state CO is injected in conveyance conduit2, when pipeline inner pressure is more than 4MPa, close the second block valve, supercharging
Pump, pressure maintaining valve；After ten minutes, whether COMPUTER DETECTION manifold pressure declines, and when pipeline inner pressure does not decline, computer carries
Show that conveying is normal, carry out next step operation.When pipeline inner pressure declines, computer prompted leaks early warning.
Step 4: to liquid CO2Liquid CO is injected in conveyance conduit2：Computer open successively the first block valve, booster pump,
Pressure maintaining valve, the 5th block valve inject liquid CO into transfer pipeline2。
Step 5: CO2It recycles：Computer closes the first block valve, the 5th block valve, supercharging successively after ten minutes
Then valve, stabilized pressure pump open third block valve and CO2Compressor.CO2Compressor is by gaseous state CO2CO in transfer pipeline2Compression
Into liquid CO2, pass through liquid CO2Conveyance conduit is delivered to section air inlet again.
Step 6: CO is injected in goaf2：Computer opened the first block valve, pressure charging valve, stabilized pressure pump every eight hours,
To liquid CO2Appropriate liquid CO is injected in conveyance conduit2, the 5th block valve is opened simultaneously, appropriate gaseous state is injected into goaf
CO2, cool down to goaf and inhibit coal spontaneous combustion, prevent goaf from fire occurs.
If taking fire suppression measures not in time when coal spontaneous occurs for goaf, underground huge economic losses and people may be caused
Member's injury.This system is equipped with liquid CO2Instant fire extinguishment system, when nature is gone out in goaf, system can take instant fire extinguishment
Measure puts out a fire to underground flame range, prevents fire from further developing, causes mine disaster.
Instant fire extinguishment system：
When fire occurs for underground goaf, start liquid CO2Instant fire extinguishment system；
1) third, the 4th block valve, CO are closed2Compressor；
2) the first block valve, booster pump, pressure maintaining valve are opened, by a large amount of liquid CO2Inject liquid CO2Conveyance conduit；
3) the 5th block valve is opened, by a large amount of gas-liquid mixed CO2Injection goaf carries out cooling fire extinguishing；
4) after fire is effectively controlled when goaf, the five, the first block valves, booster pump, pressure maintaining valve are closed, opens the
3rd, the 4th block valve, CO2Compressor carries out CO2Circularly cooling；
5) the 5th block valve is opened every a hour, and to liquid CO2Appropriate liquid CO is supplemented in conveyance conduit2, will
Appropriate CO2Goaf is injected, prevents coal resume combustion.
Downhole safety system
As liquid CO2CO occurs for conveyance conduit2After leakage, working face CO2When exceeded, computer sends out alarm signal, and closes
Close the first block valve, the second block valve, the 5th block valve, booster pump, CO2Compressor, and the 6th block valve is opened, it will be in pipeline
CO2Release ensures downhole safety to ground.
Downhole cooling regulating system.When second temperature sensor detects working face when the temperature is excessively high, computer sends out height
Warm signal adjusts the first block valve, increases liquid CO2Liquid CO in conveyance conduit2Magnitude of recruitment, while the 5th block valve is adjusted,
Increase CO in goaf2Burst size.
Liquid CO2Freeze fire extinguishing Theory of Integrated.
After 1. each pipeline and device install, to liquid CO2Gaseous state CO is injected in conveyance conduit2It boosts：Computer is beaten
The second block valve, booster pump, pressure maintaining valve are opened, pressure is higher than to the gaseous state CO of 3~4MPa2Inject liquid CO2In conveyance conduit, when
When pipeline inner pressure is more than 4MPa, the second block valve, booster pump, pressure maintaining valve are closed.COMPUTER DETECTION pipeline internal pressure after ten minutes
Whether power declines.If pipeline inner pressure does not change, pipeline air-tightness is good, and computer prompted normally conveys, and otherwise sends out
Go out to leak early warning.When normal conveying, computer opens the second block valve, the 4th block valve, booster pump, pressure maintaining valve, continues
To liquid CO2Gaseous state CO is injected in conveyance conduit2, as liquid CO2When pressure is more than 4MPa in conveyance conduit, closes second and block
Valve, booster pump, pressure maintaining valve；After ten minutes, whether COMPUTER DETECTION manifold pressure declines, as liquid CO2Conveyance conduit internal pressure
When power does not decline, computer prompted conveying is normal, carries out next step operation.As liquid CO2Pressure declines in conveyance conduit, calculates
Machine prompting leakage early warning.
2. to liquid CO2Liquid CO is injected in conveyance conduit2：Computer opens the first block valve, booster pump, voltage stabilizing successively
Valve, the 5th block valve inject liquid CO into transfer pipeline2。
③CO2It recycles：Computer closes the first block valve, the 5th block valve, pressure charging valve, voltage stabilizing successively after ten minutes
Then pump opens third block valve and CO2Compressor.CO2Compressor is by gaseous state CO2CO in delivery pipe2It is compressed into liquid CO2,
Pass through liquid CO2Conveyance conduit is delivered to section air inlet again.
4. CO is injected in goaf2：Computer opens the first block valve, pressure charging valve, stabilized pressure pump, to liquid CO2Delivery pipe
Appropriate liquid CO is injected in road2, the 5th block valve is opened simultaneously, appropriate gaseous state CO is injected into goaf2, prevent goaf coal
Spontaneous combustion.
The utility model liquid CO2Freeze fire extinguishing integral system, by installing CO in section air inlet2Evaporation
Device, high-pressure liquid gasify heat absorption in evaporator, make CO2Evaporator cools down and absorbs the heat in tunnel, realizes underground work
Face cools down.Liquid CO2After gasification absorbs amount of heat in evaporator, into gaseous state CO2Transfer pipeline, by CO2Compressor will
Low-pressure gaseous CO2It is compressed into high-pressure liquid CO2, by high-pressure liquid CO2Conveyance conduit is delivered to underground, realizes CO2It recycles.
Liquid CO2In CO2In evaporator CO is formed after gasification absorbing and cooling temperature2Gas, by part CO2Pass through the first CO2Release
Pipeline notes people goaf (oxidized zone), so as to inhibit the oxidation and spontaneous combustion of goaf coal, and has certain cooling effect to goaf.
Part gaseous state CO2Behind release to goaf, ground liquid CO2Holding vessel will continue to supplement liquid CO2To high-pressure liquid CO2Conveying
In pipeline.
As shown in figure 3, liquid CO2In conveyance conduit release end device, 17 be the first CO in goaf2Discharge conduit, 15 are
5th block valve, for controlling CO2Burst size, 27 be three-way pipe, connection gaseous state CO2Transfer pipeline, 13 be CO2Evaporator, respectively
Transfer pipeline length between device is 50 meters.
With the propulsion of working face, the first CO2Discharge conduit 17 is gradually filled by goaf, when working face is elapsed to d
When putting, 13-2 is unloaded, former three-way pipe 27 is unloaded install in b positions and with gaseous state CO2Transfer pipeline is connected, and the 5th is blocked
Valve 15, which unloads, to be loaded at former three-way pipe c, is at this time the first CO at d2Discharge nozzle.And the 5th block valve is closed.It is incited somebody to action when mined out
When liberation port inserts 5 meters of depths, the 5th block valve 15 is opened, by appropriate CO2Goaf is injected, prevents goaf coal spontaneous combustion.When
When coal working face is elapsed again to five block valves, repeat to appeal step.
In conclusion liquid CO in a kind of mine that the utility model embodiment provides2Freeze fire extinguishing integral system,
Cooling and fire extinguishing are combined, while downhole cooling is carried out, appropriate CO2 is injected into goaf, goaf is dropped
Temperature and the oxidation for inhibiting coal, prevent goaf coal spontaneous combustion.The system is furnished with instant fire extinguishment system, when goaf occurs certainly
After combustion, which starts instant fire extinguishment system, and coal spontaneous combustion is administered in time, prevents the tremendous economic caused by coal spontaneous combustion from damaging
Mistake and safety accident.
Disclosed above is only several specific embodiments of the utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (2)
1. with liquid CO in a kind of mine2Freeze fire extinguishing integral system, which is characterized in that including liquid CO2Tank (1), gaseous state
CO2Tank (2), liquid CO2Conveyance conduit (12) and gaseous state CO2Transfer pipeline (24), the liquid CO2Tank (1) and gaseous state CO2Tank
(2) except mine；
The liquid CO2The output terminal of tank (1) passes through the first block valve (3) and liquid CO2Conveyance conduit (12) connects, the gas
State CO2The output terminal of tank (2) by the second block valve (4) also with CO2Conveyance conduit (12) connects；
The liquid CO2Booster pump (5), pressure maintaining valve (6), first flow have also been set gradually from left to right on conveyance conduit (12)
Sensor (7), pressure transmitter (10), the first temperature sensor (11), the booster pump (5), pressure maintaining valve (6), first flow
Sensor (7), pressure transmitter (10), the first temperature sensor (11) are respectively positioned on except mine；
The liquid CO of first temperature sensor (11) right end2Conveyance conduit (12) enters in ore body from vertical and extends to area
Section air inlet (18), the liquid CO in section air inlet (18)2Conveyance conduit is equipped with several CO on (12)2Evaporator
(13), the liquid CO2The end of conveyance conduit (12) passes through three-way pipe (27) and the first CO being arranged in goaf (22)2
Discharge conduit (17) is connected, the first CO2The 5th block valve (15), have been set gradually from left to right in discharge conduit (17)
Two flow sensors (16), the 5th block valve (15) and the second flow sensor (16) are respectively positioned on working face (21)
In；
Second temperature sensor (19) and CO are additionally provided in the working face (21)2Solubility sensor (20)；
The liquid CO2The end of conveyance conduit (12) also passes through three-way pipe (27) and the gaseous state CO being arranged in mine2Delivery pipe
The one end on road (24) is connected, the gaseous state CO2Liquid CO outside the other end and ore body of transfer pipeline (24)2Conveyance conduit
(12) it is connected, the gaseous state CO2Liquid CO outside the other end and ore body of transfer pipeline (24)2Conveyance conduit (12) connecting place position
Between first flow sensor (7) and pressure transmitter (10)；
The gaseous state CO2Transfer pipeline (24) is equipped with a CO on the pipeline outside ore body2Compressor (9), the CO2Pressure
Contracting machine (9) is for by gaseous state CO2It is compressed into liquid CO2；
The gaseous state CO2Transfer pipeline (24) is additionally provided with third block valve (8) on the pipeline outside ore body, and the third is cut
Disconnected valve (8) is positioned at CO2The left end of compressor (9)；
The gaseous state CO2Transfer pipeline (24) is additionally provided with the 4th block valve (14) on the pipeline in ore body, described 4th section
Disconnected valve (14) is positioned at CO2The right end of compressor (9)；
The gaseous state CO2Transfer pipeline (24) is additionally provided with the 2nd CO on the pipeline outside ore body2Discharge conduit (26), it is described
2nd CO2Discharge conduit (26) is positioned at CO2Between compressor (9) and the 4th block valve (14), the 2nd CO2Discharge conduit
(26) the 6th block valve (25) is provided on；
First block valve (3), the second block valve (4), booster pump (5), pressure maintaining valve (6), first flow sensor (7), pressure
Power transmitter (10), the first temperature sensor (11), third block valve (8), the 4th block valve (14), the 5th block valve (15),
Second flow sensor (16), second temperature sensor (19), CO2Solubility sensor (20) is connected respectively with Computer signal.
2. with liquid CO in mine as described in claim 12Freeze fire extinguishing integral system, which is characterized in that the CO2
The number of evaporator (13) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684149.1U CN207538851U (en) | 2017-12-06 | 2017-12-06 | With liquid CO 2 refrigeration fire extinguishing integral system in a kind of mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721684149.1U CN207538851U (en) | 2017-12-06 | 2017-12-06 | With liquid CO 2 refrigeration fire extinguishing integral system in a kind of mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207538851U true CN207538851U (en) | 2018-06-26 |
Family
ID=62617359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721684149.1U Expired - Fee Related CN207538851U (en) | 2017-12-06 | 2017-12-06 | With liquid CO 2 refrigeration fire extinguishing integral system in a kind of mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207538851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049907A (en) * | 2017-12-06 | 2018-05-18 | 西安科技大学 | With liquid CO in a kind of mine2Refrigeration fire extinguishing integral system and method |
| CN115095374A (en) * | 2022-06-21 | 2022-09-23 | 中国矿业大学 | Energy coupling system for mine cooling, sealed storage and heat pump heat extraction |
-
2017
- 2017-12-06 CN CN201721684149.1U patent/CN207538851U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049907A (en) * | 2017-12-06 | 2018-05-18 | 西安科技大学 | With liquid CO in a kind of mine2Refrigeration fire extinguishing integral system and method |
| CN108049907B (en) * | 2017-12-06 | 2023-08-01 | 西安科技大学 | Liquid CO used in mine 2 Refrigerating, fire preventing and extinguishing integrated system and method |
| CN115095374A (en) * | 2022-06-21 | 2022-09-23 | 中国矿业大学 | Energy coupling system for mine cooling, sealed storage and heat pump heat extraction |
| CN115095374B (en) * | 2022-06-21 | 2023-08-18 | 中国矿业大学 | Energy coupling system for mine cooling, sealing and storing heat and heat pump heating |
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