CN115111812B - Mine nitrogen injection multistage synergy cooling system - Google Patents
Mine nitrogen injection multistage synergy cooling system Download PDFInfo
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- CN115111812B CN115111812B CN202210787861.3A CN202210787861A CN115111812B CN 115111812 B CN115111812 B CN 115111812B CN 202210787861 A CN202210787861 A CN 202210787861A CN 115111812 B CN115111812 B CN 115111812B
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 363
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 177
- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 178
- 238000002360 preparation method Methods 0.000 claims abstract description 19
- 230000002195 synergetic effect Effects 0.000 claims abstract description 9
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 18
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 230000002269 spontaneous effect Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000003673 groundwater Substances 0.000 description 19
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 206010000369 Accident Diseases 0.000 description 1
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/02—Preparation of nitrogen
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The application discloses a mine nitrogen injection multistage synergistic cooling system which comprises a nitrogen preparation system, a nitrogen conveying pipeline, a nitrogen cooling system, a water source heat pump system, an underground cold water system and a water baffle, wherein the nitrogen preparation system is connected with the nitrogen conveying pipeline, a condenser and the water baffle in the nitrogen cooling system, the water source heat pump system are sequentially arranged in the nitrogen conveying pipeline, the underground cold water system comprises a first underground cold water system and a second underground cold water system, the first underground cold water system is connected with the nitrogen cooling system through the nitrogen conveying pipeline, and the second underground cold water system is arranged at one end of the water source heat pump system. According to the application, nitrogen is subjected to secondary heat exchange by the nitrogen cooling system and the water source heat pump system by using the underground cold water system of the underground water source as a cold source, so that the temperature of the nitrogen discharged from the nitrogen conveying pipeline is reduced, the energy consumption is low, the energy is saved, the environment is protected, the low-temperature nitrogen exchanges heat with the coal body, and the spontaneous combustion risk of the residual coal in the goaf is further reduced.
Description
Technical Field
The application relates to the technical field of mining safety, in particular to a mine nitrogen injection multistage synergy cooling system.
Background
The spontaneous combustion fire accident of the coal left in the goaf in China is serious, and the spontaneous combustion of the coal not only causes a great amount of resource loss, but also is more likely to cause a series of safety accidents such as explosion, gas poisoning and the like. Because nitrogen has good flame-retardant and explosion-suppression characteristics, the nitrogen injection fire prevention and extinguishing technology has been widely applied to mine fire prevention and control. The Chinese patent of patent No. CN201911294521.1 discloses a goaf grouting nitrogen injection fire prevention and extinguishing method, which comprises the steps of pre-burying a grouting pipeline and a nitrogen injection pipeline in a coal seam to be mined along the mining direction; grouting a grouting pipeline when the stoping distance of the coal face is greater than a preset distance; when the nitrogen injection port of the nitrogen injection pipeline enters the oxidation temperature rise zone, the nitrogen injection pipeline starts to inject nitrogen. However, the method cannot effectively avoid spontaneous combustion of residual coal in the goaf. At present, most of the nitrogen injection processes of mines in China are to put a nitrogen injection machine underground to introduce the produced nitrogen into a goaf through a pipeline, reduce the spontaneous combustion risk of residual coal by reducing the oxygen content, but the nitrogen compressed by the nitrogen production machine has higher temperature, and are difficult to effectively reduce the temperature in the goaf. The prior art adopts cooling equipment to cool down nitrogen gas, and the nitrogen gas cooling in-process power consumption is higher, can't effectively avoid losing the spontaneous combustion risk of coal.
Based on this, it is highly desirable to provide a system which is more energy-saving and environment-friendly, can recycle and effectively reduce the temperature of outlet nitrogen, so as to avoid spontaneous combustion of residual coal in the goaf.
Disclosure of Invention
Aiming at the problems, the application provides a mine nitrogen injection multistage synergy cooling system. Solves the problem of high energy consumption of nitrogen cooling in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the application relates to a mine nitrogen injection multistage synergistic cooling system, which specifically comprises a nitrogen preparation system, a nitrogen conveying pipeline, a nitrogen cooling system, a water source heat pump system and an underground cold water system, wherein the nitrogen preparation system is connected with the nitrogen conveying pipeline, the nitrogen cooling system is arranged in the nitrogen conveying pipeline, one end of the water source heat pump system is arranged outside the nitrogen conveying pipeline, the other end of the water source heat pump system is arranged in the nitrogen conveying pipeline, the underground cold water system comprises a first underground cold water system and a second underground cold water system, the first underground cold water system is connected with the nitrogen cooling system through the nitrogen conveying pipeline, and the second underground cold water system is arranged at one end of the water source heat pump system.
Further, the nitrogen preparation system is a nitrogen generator.
Furthermore, one end of the nitrogen conveying pipeline is an air inlet, the other end of the nitrogen conveying pipeline is an air outlet, and the air inlet is connected with the nitrogen making machine.
Still further still include a breakwater, the breakwater sets up in nitrogen gas pipeline water source heat pump system and the centre of air outlet.
Still further, water source heat pump system includes evaporimeter, compressor, condenser and choke valve, the evaporimeter sets up in nitrogen gas conveying pipeline nitrogen gas cooling system and breakwater in the middle of, is W continuous evenly distributed in nitrogen gas conveying pipeline inside, and the both ends of evaporimeter all pass nitrogen gas conveying pipeline, the one end of evaporimeter connects gradually compressor, condenser, choke valve, constitutes the return circuit with the other end of evaporimeter.
Further, the condenser is a condensing pipeline and is arranged at the periphery of the nitrogen conveying pipeline.
Still further, the second groundwater cooling system includes second groundwater source water inlet, second quality of water treater, second water pump, second groundwater source delivery port, install second quality of water treater, second water pump on the inlet channel of second groundwater source water inlet in proper order, the other end and the second groundwater source delivery port of second water pump are connected, pipeline and the external condensation pipeline of water source heat pump system between second water pump and the second groundwater source delivery port are evenly crisscross to be distributed.
Further, the nitrogen cooling system is a nitrogen cooling pipeline which is uniformly distributed in a nitrogen conveying pipeline close to one side of the nitrogen preparation system, and two ends of the nitrogen cooling pipeline penetrate through the nitrogen conveying pipeline to be connected with the first underground cold water system.
Still further, first groundwater cooling water system includes first groundwater source water inlet, first quality of water treater, first water pump, first groundwater source delivery port, install first quality of water treater, first water pump on the inlet channel of first groundwater source water inlet in proper order, the other end of first water pump is connected with the water inlet of nitrogen gas cooling pipeline, and the delivery port and the first groundwater source delivery port of nitrogen gas cooling pipeline are connected.
Compared with the prior art, the application has the beneficial effects that:
when the nitrogen prepared by the nitrogen preparation system passes through the nitrogen conveying pipeline, the nitrogen is subjected to secondary heat exchange by using the underground cold water system of the underground water source as a cold source through the nitrogen cooling system and the water source heat pump system, so that the temperature of the nitrogen discharged from the nitrogen conveying pipeline is reduced, the nitrogen with lower temperature is prepared, the low-temperature nitrogen exchanges heat with coal, the oxygen content is reduced, the goaf temperature is further reduced, the spontaneous combustion risk of the residual coal is greatly reduced, the advantages of low energy consumption, energy conservation and environmental protection are achieved, and the nitrogen preparation system can be widely applied to the mine nitrogen preparation system.
Drawings
FIG. 1 is a schematic diagram of a nitrogen multistage cooling system in the present embodiment
Reference numerals: the nitrogen generator is characterized in that the nitrogen generator is 1, the air inlet is 2, the first underground water source inlet is 3, the first underground water source outlet is 4, the first water quality processor is 5, the first water pump is 6, the nitrogen cooling pipeline is 7, the evaporator is 8, the compressor is 9, the condenser is 10, the throttle valve is 11, the water baffle is 12, the air outlet is 13, the second underground water source inlet is 14, the second underground water source outlet is 15, the second water quality processor is 16, the second water pump is 17, and the nitrogen conveying pipeline is 18.
Detailed Description
The present application will be described in further detail with reference to examples in order to make the objects and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Examples
The nitrogen-injecting multistage synergistic cooling system for the mine specifically comprises a nitrogen preparation system, a nitrogen conveying pipeline 18, a nitrogen cooling system, a water source heat pump system and an underground cold water system, wherein the nitrogen preparation system is a nitrogen generator 1, one end of the nitrogen conveying pipeline 18 is an air inlet 2, the other end of the nitrogen conveying pipeline is an air outlet 14, the air inlet 2 is connected with a nitrogen outlet of the nitrogen generator 1, and the nitrogen conveying pipeline 18 is sequentially provided with the nitrogen cooling system, the water source heat pump system and a water baffle 12 from the air inlet to the air outlet.
The underground water system comprises a first underground water system and a second underground water system, wherein the first underground water system comprises a first underground water source water inlet 3, a first water quality processor 5, a first water pump 6 and a first underground water source water outlet 4, and a first water quality processor 5 and a first water pump 6 are sequentially arranged on a water inlet pipeline of the first underground water source water inlet 3; the second groundwater system comprises a second groundwater source water inlet 14, a second water quality processor 16, a second water pump 17 and a second groundwater source water outlet 15, the second water quality processor 16 and the second water pump 17 are sequentially installed on a water inlet pipeline of the second groundwater source water inlet 14, the other end of the second water pump 17 is connected with the second groundwater source water outlet 15, and a uniformly distributed pipeline is arranged between the second water pump 17 and the second groundwater source water outlet 15.
The nitrogen cooling system is a nitrogen cooling pipeline 7, the nitrogen cooling pipeline 7 is in an M-shaped continuous and uniform distribution in a nitrogen conveying pipeline 18 close to one side of the nitrogen preparation system, two ends of the nitrogen cooling pipeline 7 penetrate through the nitrogen conveying pipeline 18 and are connected with a first underground cold water system, a water inlet end of the nitrogen cooling pipeline 7 penetrates through the nitrogen conveying pipeline 18 and is connected with the other end of the first water pump 6, and a water outlet of the nitrogen cooling pipeline penetrates through the nitrogen conveying pipeline 18 and is connected with the water outlet 4 of the first underground water source.
The water source heat pump system comprises an evaporator 8, a compressor 9, a condenser 10 and a throttle valve 11, wherein the evaporator 8 is arranged between a nitrogen cooling system and a water baffle 12 in a nitrogen conveying pipeline 18, two ends of the evaporator 8 penetrate through the nitrogen conveying pipeline 18, one end of the evaporator 8 is sequentially connected with the compressor 9, the condenser 10 and the throttle valve 11, and the other end of the evaporator 8 forms a loop, the condenser 10 is a condensing pipeline, and pipelines between a second water pump 17 and a second underground water source water outlet 15 and the condensing pipeline of the condenser 10 are uniformly distributed in a staggered mode.
The working principle of the system of the embodiment is as follows:
in the embodiment, when nitrogen prepared in the nitrogen preparation system passes through the nitrogen conveying pipeline, the nitrogen is firstly cooled by the nitrogen cooling system, high-pressure steam in the nitrogen cooling system passes through the condenser in the water source heat pump system, the refrigerant in the condenser gives out heat to groundwater in the groundwater cooling system, the refrigerant steam is condensed into liquid, enters the evaporator through the throttling device and absorbs heat in the evaporator, the nitrogen reaching the evaporator from the nitrogen cooler is cooled, the evaporated refrigerant steam is sucked by the compressor, and the nitrogen is circularly cooled in such a way, so that the temperature of the nitrogen discharged in the nitrogen conveying pipeline is reduced, the nitrogen with lower temperature is prepared, the low-temperature nitrogen exchanges heat with coal, the oxygen content is reduced, the goaf temperature is further reduced, and the spontaneous combustion risk of the residual coal is greatly reduced. In addition, the system utilizes the underground water source as a cold source to perform secondary heat exchange on nitrogen, has the advantages of low energy consumption and environmental protection, and can be widely applied to a mine nitrogen production system. The specific working principles of the nitrogen cooling system, the water source heat pump system and the underground cold water system are as follows:
(1) Nitrogen cooling system: the nitrogen outlet pressure of the nitrogen making machine is generally 0.1-1Mpa, nitrogen produced by the nitrogen making machine enters a nitrogen cooler through an air inlet of a nitrogen conveying pipeline to be cooled, the cooled nitrogen enters an evaporator of a water source heat pump to be cooled secondarily, water drops carried in the nitrogen are separated through a water baffle to form low-temperature nitrogen, the low-temperature nitrogen is sent to an air outlet, and finally the low-temperature low-humidity nitrogen is directly sent to a working face through a fan to cool a coal bed, so that spontaneous combustion of coal is prevented.
(2) A water source heat pump system: the high-pressure steam discharged by the compressor enters the condenser, the refrigerant in the condenser gives off heat to the underground water in the underground cold water system, the refrigerant steam is condensed into liquid, enters the evaporator through the throttling device and absorbs heat in the evaporator, the nitrogen reaching the evaporator from the nitrogen cooler is cooled, and the evaporated refrigerant steam is sucked by the compressor, so that the purpose of cooling the nitrogen is achieved.
(3) Underground cold water system: the underground water system extracts underground water with lower temperature from an underground water pool, the underground water is processed into usable underground water through a water quality processor, then the underground water with lower temperature is conveyed into a condenser of a nitrogen cooler or a water source heat pump system through a cold water supply pipe by a water pump, and the underground water with higher temperature after heat mass exchange is directly conveyed into an underground water drainage pool through a drain pipe by heat mass exchange.
In summary, when the nitrogen prepared by the nitrogen preparation system passes through the nitrogen conveying pipeline, the nitrogen is subjected to secondary heat exchange by the nitrogen cooling system and the water source heat pump system by using the underground cold water system of the underground water source as a cold source, so that the temperature of the nitrogen discharged from the nitrogen conveying pipeline is reduced, the nitrogen with lower temperature is prepared, and the low-temperature nitrogen exchanges heat with coal, thereby not only reducing the oxygen content, but also further reducing the goaf temperature, greatly reducing the spontaneous combustion risk of the residual coal, and having the advantages of low energy consumption, energy conservation and environmental protection, and being widely applied to the mine nitrogen preparation system.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The foregoing description is only of the preferred embodiments of the application and the description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a mine annotates multistage efficiency cooling system of nitrogen which characterized in that: the underground water cooling system comprises a nitrogen preparation system, a nitrogen conveying pipeline, a nitrogen cooling system, a water source heat pump system and an underground water cooling system, wherein the nitrogen preparation system is connected with the nitrogen conveying pipeline, the nitrogen cooling system is arranged inside the nitrogen conveying pipeline, one end of the water source heat pump system is arranged outside the nitrogen conveying pipeline, the other end of the water source heat pump system is arranged inside the nitrogen conveying pipeline, the underground water cooling system comprises a first underground water cooling system and a second underground water cooling system, the first underground water cooling system is connected with the nitrogen cooling system through the nitrogen conveying pipeline, and the second underground water cooling system is arranged at one end of the water source heat pump system;
the nitrogen preparation system is a nitrogen generator, the nitrogen cooling system is a nitrogen cooling pipeline, the nitrogen cooling pipeline is uniformly distributed in a nitrogen conveying pipeline close to one side of the nitrogen preparation system, and two ends of the nitrogen cooling pipeline penetrate through the nitrogen conveying pipeline to be connected with a first underground cold water system.
2. The mine nitrogen injection multistage synergistic cooling system as claimed in claim 1, wherein: one end of the nitrogen conveying pipeline is an air inlet, the other end of the nitrogen conveying pipeline is an air outlet, and the air inlet is connected with the nitrogen making machine.
3. The mine nitrogen injection multistage synergistic cooling system as claimed in claim 2, wherein: the water pump system further comprises a water baffle plate, and the water baffle plate is arranged between the water source heat pump system and the air outlet in the nitrogen conveying pipeline.
4. A mine nitrogen injection multistage synergistic cooling system as claimed in claim 3, wherein: the water source heat pump system comprises an evaporator, a compressor, a condenser and a throttle valve, wherein the evaporator is arranged between a nitrogen cooling system and a water baffle in a nitrogen conveying pipeline, both ends of the evaporator penetrate through the nitrogen conveying pipeline, and one end of the evaporator is sequentially connected with the compressor, the condenser and the throttle valve to form a loop with the other end of the evaporator.
5. The mine nitrogen injection multistage synergistic cooling system as claimed in claim 4, wherein: the condenser is a condensing pipeline.
6. The mine nitrogen injection multistage synergistic cooling system as claimed in claim 5, wherein: the second underground cold water system comprises a second underground water source water inlet, a second water quality processor, a second water pump and a second underground water source water outlet, wherein the second water quality processor and the second water pump are sequentially installed on a water inlet pipeline of the second underground water source water inlet, the other end of the second water pump is connected with the second underground water source water outlet, and a pipeline between the second water pump and the second underground water source water outlet and an external condensation pipeline of the water source heat pump system are uniformly distributed in a staggered mode.
7. The mine nitrogen injection multistage synergistic cooling system as claimed in claim 1, wherein: the first underground cold water system comprises a first underground water source water inlet, a first water quality processor, a first water pump and a first underground water source water outlet, wherein the first water quality processor and the first water pump are sequentially installed on a water inlet pipeline of the first underground water source water inlet, the other end of the first water pump is connected with a water inlet of a nitrogen cooling pipeline, and a water outlet of the nitrogen cooling pipeline is connected with the first underground water source water outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787861.3A CN115111812B (en) | 2022-07-06 | 2022-07-06 | Mine nitrogen injection multistage synergy cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787861.3A CN115111812B (en) | 2022-07-06 | 2022-07-06 | Mine nitrogen injection multistage synergy cooling system |
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| CN115111812A CN115111812A (en) | 2022-09-27 |
| CN115111812B true CN115111812B (en) | 2023-10-03 |
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| CN116878310B (en) * | 2023-07-20 | 2023-12-08 | 中国矿业大学(北京) | Circulation water type coal storage pile oxidation heat energy utilization and spontaneous combustion control system |
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| US6293121B1 (en) * | 1988-10-13 | 2001-09-25 | Gaudencio A. Labrador | Water-mist blower cooling system and its new applications |
| CN101988771A (en) * | 2009-07-30 | 2011-03-23 | 阜新金昊空压机有限公司 | Nitrogen cooling device for preventing fire-extinguishing in high-temperature environment |
| CN202310744U (en) * | 2011-12-09 | 2012-07-11 | 厦门永华实业有限公司 | Circulating ground source cold water cooling/heating system |
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| CN215170150U (en) * | 2021-07-19 | 2021-12-14 | 广州恒星制冷设备集团有限公司 | Mine air-conditioning integrated unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8069676B2 (en) * | 2002-11-13 | 2011-12-06 | Deka Products Limited Partnership | Water vapor distillation apparatus, method and system |
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2022
- 2022-07-06 CN CN202210787861.3A patent/CN115111812B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6293121B1 (en) * | 1988-10-13 | 2001-09-25 | Gaudencio A. Labrador | Water-mist blower cooling system and its new applications |
| CN101988771A (en) * | 2009-07-30 | 2011-03-23 | 阜新金昊空压机有限公司 | Nitrogen cooling device for preventing fire-extinguishing in high-temperature environment |
| CN202310744U (en) * | 2011-12-09 | 2012-07-11 | 厦门永华实业有限公司 | Circulating ground source cold water cooling/heating system |
| CN105605828A (en) * | 2016-01-14 | 2016-05-25 | 江苏大学 | Waste heat and waste pressure type water source heat pump system applying boiler smoke waste heat |
| CN208804908U (en) * | 2018-07-19 | 2019-04-30 | 中国电力工程顾问集团中南电力设计院有限公司 | It is a kind of to utilize electric power plant circulating water exhaust heat refrigerating heating system |
| CN112145218A (en) * | 2020-09-30 | 2020-12-29 | 辽宁工程技术大学 | System and method for treating thermal damage of underground coal face |
| CN215170150U (en) * | 2021-07-19 | 2021-12-14 | 广州恒星制冷设备集团有限公司 | Mine air-conditioning integrated unit |
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| CN115111812A (en) | 2022-09-27 |
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