CN202250150U - Liquid nitrogen cooling, fireproofing and fire-extinguishing system - Google Patents
Liquid nitrogen cooling, fireproofing and fire-extinguishing system Download PDFInfo
- Publication number
- CN202250150U CN202250150U CN2011203538164U CN201120353816U CN202250150U CN 202250150 U CN202250150 U CN 202250150U CN 2011203538164 U CN2011203538164 U CN 2011203538164U CN 201120353816 U CN201120353816 U CN 201120353816U CN 202250150 U CN202250150 U CN 202250150U
- Authority
- CN
- China
- Prior art keywords
- cooling
- pipeline
- liquid nitrogen
- carburetor
- fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 238000004079 fireproofing Methods 0.000 title abstract 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000006200 vaporizer Substances 0.000 claims description 25
- 238000009825 accumulation Methods 0.000 claims description 20
- 230000002265 prevention Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a liquid nitrogen cooling, fireproofing and fire-extinguishing system, relating to a system installed under a coal well for reducing temperature, preventing fire and extinguishing fire of a mining working face area and a return airway, and aiming to solve the problems that the existing mining working face area and the return airway consume much electricity during cooling, and the cost is high and the like. The system comprises a liquid nitrogen storage tank arranged on a trolley, a cold storage cooling carburetor and an air self-heating type heat exchanger; a cooling fin, a water inlet and a overflow port are formed on the shell of the cold storage cooling carburetor; the liquid outlet of the liquid nitrogen storage tank is provided with a pipeline, and the pipeline is connected with the inlet of an heat exchange tube of the cold storage cooling carburetor; the outlet of the heat exchange tube of the cold storage cooling carburetor is provided with a pipeline extending to the mining working face area; a stop valve is arranged on a branch pipeline connected onto the pipeline between the liquid nitrogen storage tank and the cold storage cooling carburetor; the branch pipeline is connected with the inlet of the air self-heating heat exchanger; and the outlet of the air self-heating carburetor is provided with a pipeline, and the pipeline is communicated with the pipeline connected with the outlet of the heat exchange tube of the cold storage cooling carburetor. The system provided by the utility model has the advantages of good cooling, fireproofing and fire-extinguishing effects and low cooling, fireproofing and fire-extinguishing cost.
Description
Technical field:
The utility model relates to a kind of air return way under the coal mine that is installed in, the system that getting working face district and return aircourse are lowered the temperature, prevent fires, put out a fire.
Background technology:
In coal mining; Because the colliery is constantly to deep mining; Underground heat manifests all the more seriously, because oxidation of coal produces factors such as a large amount of heats and the release heat of high-power machine run own are bigger, causes getting working face district temperature to continue to increase even exceed state-set standard; Cause the worker laboring environment abominable, have a strong impact on healthy.For addressing the above problem; Majority is to solve through the refrigeration measure at present; Promptly adopt air conditioner refrigerating in mine, directly to inject the cold air cooling, the shortcoming of this cool-down method is that power consumption is big, and cost is high; And, only depend on above-mentioned cooling measure can not air that get back to ground in the return aircourse be dropped to below 28 ℃ because getting working face upper outlet temperature is too high.
Summary of the invention:
The utility model technical problem to be solved provides a kind of liquid nitrogen cooling, fire prevention, fire extinguishing system, and native system is installed in the air return way under the coal mine, can lower the temperature to getting working face district and return aircourse, thus the purpose that reaches fire prevention and put out a fire.
Above-mentioned purpose is achieved in that it comprises liquid nitrogen storage tank; Liquid nitrogen storage tank places on the dolly, it is characterized in that also comprising cold accumulation cooling-down vaporizer and air self-heating heat exchanger, and the cold accumulation cooling-down vaporizer comprises housing; Heat exchanger tube is housed in the housing; Be fixed with fin on the housing, also have water inlet and overfall on the housing, water or anti-icing fluid are housed in the housing; The liquid outlet of liquid nitrogen storage tank has the heat exchanger tube inlet on pipeline and the cold accumulation cooling-down vaporizer shell to link to each other, and the heat exchanger tube in the cold accumulation cooling-down vaporizer shell exports has pipeline to lead to the getting working face district; Be connected with lateral on the pipeline between liquid nitrogen storage tank and the cold accumulation cooling-down vaporizer; This lateral links to each other with the inlet of air self-heating heat exchanger; On this lateral stop valve is arranged, the pipeline connection that the outlet of air self-heating vaporizer has the heat exchanger tube outlet on pipeline and the cold accumulation cooling-down vaporizer shell to be connected.
The utility model has the advantages that: native system is placed the air return way under the coal mine; Liquid nitrogen in the liquid nitrogen storage tank is released in cold accumulation cooling-down vaporizer and the air self-heating vaporizer; Internal conversion becomes in the process of gas to discharge a large amount of cold energy liquid nitrogen with air self-heating vaporizer at the cold accumulation cooling-down vaporizer; Carry out interchange of heat with the hot air of getting working face district and return aircourse in the coal mine, thereby be reached for getting working face district and return aircourse cooling and fire-retardant purpose in the coal mine.And native system cooling, fire prevention and fire extinguishing cost are low, effective, simple in structure, easy to operate, and whole equipment is safe and reliable.
Description of drawings:
Accompanying drawing is the structural representation of the utility model.
The specific embodiment:
With reference to accompanying drawing, it comprises liquid nitrogen storage tank 1, and liquid nitrogen storage tank 1 places on the dolly 2; Also comprise cold accumulation cooling-down vaporizer and air self-heating heat exchanger 9 (buying) from market; The cold accumulation cooling-down vaporizer comprises housing 4, and heat exchanger tube 5 is housed in the housing, is fixed with fin 3 on the housing; Also have water inlet 7 and overfall 6 on the housing; Water or anti-icing fluid are housed in the housing, and the liquid outlet of liquid nitrogen storage tank has the heat exchanger tube inlet on pipeline and the cold accumulation cooling-down vaporizer shell to link to each other, and the heat exchanger tubes 5 in the cold accumulation cooling-down vaporizer shell 4 export has pipeline to lead to the getting working face district; Be connected with lateral on the pipeline between liquid nitrogen storage tank 1 and the cold accumulation cooling-down vaporizer; This lateral links to each other with the inlet of air self-heating heat exchanger 9; Stop valve 8 is arranged, the pipeline connection that the outlet of air self-heating vaporizer 9 has heat exchanger tube 5 outlets on pipeline and the cold accumulation cooling-down vaporizer shell 4 to be connected on this lateral.
Claims (1)
1. liquid nitrogen cooling, fire prevention, fire extinguishing system comprise liquid nitrogen storage tank (1), and liquid nitrogen storage tank (1) places on the dolly (2); It is characterized in that also comprising cold accumulation cooling-down vaporizer and air self-heating heat exchanger (9); The cold accumulation cooling-down vaporizer comprises housing (4), and heat exchanger tube (5) is housed in the housing, is fixed with fin (3) on the housing; Also have water inlet (7) and overfall (6) on the housing; Water or anti-icing fluid are housed in the housing, and the liquid outlet of liquid nitrogen storage tank has the heat exchanger tube inlet on pipeline and the cold accumulation cooling-down vaporizer shell to link to each other, and the heat exchanger tube (5) in the cold accumulation cooling-down vaporizer shell (4) exports has pipeline to lead to the getting working face district; Be connected with lateral on the pipeline between liquid nitrogen storage tank (1) and the cold accumulation cooling-down vaporizer; This lateral links to each other with the inlet of air self-heating heat exchanger (9); Stop valve (8) is arranged, the pipeline connection that the outlet of air self-heating vaporizer (9) has heat exchanger tube (5) outlet on pipeline and the cold accumulation cooling-down vaporizer shell (4) to be connected on this lateral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203538164U CN202250150U (en) | 2011-09-21 | 2011-09-21 | Liquid nitrogen cooling, fireproofing and fire-extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203538164U CN202250150U (en) | 2011-09-21 | 2011-09-21 | Liquid nitrogen cooling, fireproofing and fire-extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250150U true CN202250150U (en) | 2012-05-30 |
Family
ID=46111408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203538164U Expired - Lifetime CN202250150U (en) | 2011-09-21 | 2011-09-21 | Liquid nitrogen cooling, fireproofing and fire-extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250150U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174452A (en) * | 2013-04-16 | 2013-06-26 | 中国矿业大学 | Liquid nitrogen self-pressurization and inhibition fire extinguishing system |
| CN103775119A (en) * | 2014-01-22 | 2014-05-07 | 神华集团有限责任公司 | Underground coal mine cooling method |
| CN104594938A (en) * | 2014-12-29 | 2015-05-06 | 神华集团有限责任公司 | Mine liquid nitrogen fireproof and fire extinguishing device and use method thereof |
| CN104747226A (en) * | 2015-03-26 | 2015-07-01 | 神华集团有限责任公司 | Mine liquid nitrogen fire preventing and extinguishing system and using method thereof |
| CN104775843A (en) * | 2015-04-02 | 2015-07-15 | 神华集团有限责任公司 | Liquid nitrogen fireproof fire extinguishing system and method |
| CN106150539A (en) * | 2016-08-25 | 2016-11-23 | 辽宁工程技术大学 | A kind of high temperature getting working face liquid CO2freezing by change of state heat sink and method |
| WO2016183974A1 (en) * | 2015-05-21 | 2016-11-24 | 中国矿业大学 | Liquid nitrogen system and method for nondestructively controlling fire area in coalfield |
-
2011
- 2011-09-21 CN CN2011203538164U patent/CN202250150U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174452A (en) * | 2013-04-16 | 2013-06-26 | 中国矿业大学 | Liquid nitrogen self-pressurization and inhibition fire extinguishing system |
| CN103775119A (en) * | 2014-01-22 | 2014-05-07 | 神华集团有限责任公司 | Underground coal mine cooling method |
| CN103775119B (en) * | 2014-01-22 | 2016-02-17 | 神华集团有限责任公司 | A kind of cooling-down method for down-hole of coal mine |
| CN104594938A (en) * | 2014-12-29 | 2015-05-06 | 神华集团有限责任公司 | Mine liquid nitrogen fireproof and fire extinguishing device and use method thereof |
| CN104594938B (en) * | 2014-12-29 | 2017-02-22 | 神华集团有限责任公司 | Mine liquid nitrogen fireproof and fire extinguishing device and use method thereof |
| CN104747226A (en) * | 2015-03-26 | 2015-07-01 | 神华集团有限责任公司 | Mine liquid nitrogen fire preventing and extinguishing system and using method thereof |
| CN104775843A (en) * | 2015-04-02 | 2015-07-15 | 神华集团有限责任公司 | Liquid nitrogen fireproof fire extinguishing system and method |
| WO2016183974A1 (en) * | 2015-05-21 | 2016-11-24 | 中国矿业大学 | Liquid nitrogen system and method for nondestructively controlling fire area in coalfield |
| CN106150539A (en) * | 2016-08-25 | 2016-11-23 | 辽宁工程技术大学 | A kind of high temperature getting working face liquid CO2freezing by change of state heat sink and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jingyang Inventor after: Wang Shuohui Inventor after: Li Wenjun Inventor after: Yang Yong Inventor after: Wang Jiren Inventor after: Zhou Xihua Inventor after: Wang Wenyou Inventor after: Li Muhuan Inventor after: Zhao Wangui Inventor after: Zhang Huanyi Inventor before: Li Jingyang Inventor before: Li Wenjun Inventor before: Yang Yong |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170216 Address after: Tokyo Ling Qingyang Industrial Park in Liaoning province Liaoyang City Wensheng District 111000 Patentee after: Zhengyang Liaoyang mechanical equipment manufacturing Co., Ltd. Patentee after: Liaoning Technical University Patentee after: Shenyang University of Technology Address before: 111000 Liaoning province Liaoyang Wenshengqu Industrial Park (Qingyang village on the tile) Liaoyang Zhengyang mechanical equipment manufacturing Co Ltd Patentee before: Li Jingyang |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Jingyang Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhengyang Liaoyang mechanical equipment manufacturing Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |