CN102140927A - Method and system for reducing temperature locally under coal mine shaft - Google Patents
Method and system for reducing temperature locally under coal mine shaft Download PDFInfo
- Publication number
- CN102140927A CN102140927A CN2011101093762A CN201110109376A CN102140927A CN 102140927 A CN102140927 A CN 102140927A CN 2011101093762 A CN2011101093762 A CN 2011101093762A CN 201110109376 A CN201110109376 A CN 201110109376A CN 102140927 A CN102140927 A CN 102140927A
- Authority
- CN
- China
- Prior art keywords
- air
- turbine
- coal mine
- temperature
- water separator
- 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.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a method and a system for reducing temperature locally under a coal mine shaft and belongs to the field of temperature reduction under coal mine shafts. The whole system consists of a ground part and an underground part, wherein the ground part consists of an air compressor, a cooler, an oil and water separator, a voltage stabilizer, an evaporation condenser and a drying tower; and the underground part consists of a filter, a temperature regulation valve, a heat regenerator, a high-pressure water separator, a turbine cooler, a fan, a gas mixing regulation valve and an air diffuser. Dried air provided by the ground part is filtered and is subjected to temperature regulation and then enters the turbine cooler, and then exchanges heat with the dried air in the heat generator at the outlet of a turbine, and liquid water is separated from the air flow cooled by the heat generator in a high-pressure water separator, and then the cooled air flow enters the turbine and is expanded and subjected to heat content and temperature reduction in the turbine, and then is returned and mixed once, and conveyed to the surrounding of miners through the fan and the air diffuser. The system for reducing the temperature locally under the shaft has the advantages of capacity of stably running for a long term, obvious temperature reduction effect, low energy consumption, small volume and the like.
Description
Technical field
The present invention relates to a kind of method and system thereof that is used for local cooling under the coal mine, refer in particular to the expansion of a kind of air stream and subtract local cooling's method and system thereof under the enthalpy self-operated type coal mine, belong to downhole cooling field, colliery.
Background technology
Along with the coal mine exploitation is deepened year by year, down-hole heat evil is on the rise, and the air dry-bulb temperature of some driving face surpasses 30 ℃, and relative humidity can reach 100%.Heat evil has caused harm to the miner is healthy, and mine safety is brought threat, has greatly reduced labor productivity, according to the regulation that national security is produced, must implement cooling measure under the coal mine.
When adopting isolated thermal source, adding non-refrigeration measure such as forced ventilation and be not enough to eliminate down-hole heat evil, when perhaps techno-economic effect is not good, generally can consider to adopt the artificial cooling cooling measure.The artificial cooling cooling measure is according to the capacity of refrigeration machine and the position is set can roughly be divided into and concentrates cooling and local cooling method.
Concentrated cooling method is to utilize the large-scale refrigeration machine that is fixed on the face of land or down-hole to carry out temperature reduction way, the cold water that to be refrigeration machine cool off the direct refrigeration modes of whole air intakes and refrigeration machine in vertical shaft well head or shaft bottom is sent near the work plane supporting with mobile heat interchanger with flow pipe, form the dispersion refrigeration modes of local cooling.But concentrate cooling method to have shortcomings such as investment is big, installation and maintenance are difficult, the transportation refrigerating loss is big.
Local cooling's mode is to utilize independent movable refrigerator to implement the mode of local cooling at each work plane, and this local cooling mode is invested lower, flexible.What traditional down-hole mobile air conditioner adopted is exactly local cooling's mode, but it also exists the easy fouling of condenser, evaporimeter easily stifled, and etc. shortcoming, particularly the discharging of condensation heat is a difficult problem very thorny in the down-hole.With turbine cooling technology in the aircraft environment control system is the mine local cooling machine that base growth comes, also be a kind of be local cooling's equipment that power reduces the coal mine evacuation working face environment temperature with compressed air, this equipment adopts the turbine expansion refrigeration, under normal air feed situation, it can produce one low-temperature airflow.But also there are two shortcomings in this mine local cooling machine: (1) is owing to contain moisture in the air-flow, these moisture will be converted into ice pellets at low temperatures, the turbine that can occur running up after the long-time running is caused this cooling machine steady in a long-term not move by the phenomenon that ice pellets breaks; (2), therefore be difficult to satisfy make the air dry-bulb temperature in whole driving face zone by 32 ℃ of requirements that drop to below 26 ℃ because refrigerating capacity is too small.
Summary of the invention
The object of the present invention is to provide a kind of method and system thereof that is used for local cooling under the coal mine, this system not only can overcome the shortcoming of mobile air conditioner under the conventional well, and can steady in a long-term move, and effectively reaches local cooling's requirement.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of method that is used for local cooling under the coal mine, its system is made up of above ground portion and down-hole part.Above ground portion is made up of air compressor, cooler, oil water separator, stabilizator, evaporative condenser and drying tower.The task of above ground portion is the air stream toward the delivered downhole drying.During work, aboveground air becomes the gas of HTHP after the air compressor compression, through subcooler, the water that is cooled therein cools off under level pressure, temperature is reduced to normal temperature, through behind the stabilizator, separate airborne lubrication oil and moisture through oil water separator then, remove airborne water vapour through evaporative condenser and silica dehydrator tower again.
The down-hole part is made up of strainer, heat control valve, regenerator, High Pressure Water Separator, cooling turbine unit, blower fan, mixed gas control valve and diffuser.After the air of super-dry filters through strainer again, enter cooling turbine unit by heat control valve, at regenerator of turbine outlet device, allow low-temperature airflow that expansion turbine exports out and normal temperature air-flow carry out interchange of heat therein from ground.Air after regenerator further is cooled stream is isolated aqueous water in High Pressure Water Separator, enter cooling turbine unit again and expand therein and subtract the enthalpy drop temperature.By mixing the effect of gas control valve, carry out primary retirn air and mix the air-flow that reaches comfort temperature and after the blower fan pressurization, deliver to around the miner of development end work by diffuser.The power of blower fan is from the turbine expansion merit.
Technique effect of the present invention is as follows:
1. compare with traditional down-hole mobile air conditioner, it is high that its reliability is wanted, and traditional easy fouling of down-hole mobile air conditioner condenser, evaporimeter are easily stifled, and this device is provided with oil water separator, can separate airborne lubrication oil and moisture, in order to avoid pollute desiccant and the operate as normal that influences system.Airborne moisture (comprising steam) will be emitted a large amount of latent heat when forming ice pellets at low temperatures, and this will reduce the actual temperature drop effect of turbine.Because the flow velocity of air-flow in turbine can be up to supersonic speed, ice pellets can break jet pipe ring and impeller under the drive of high velocity air, not only be provided with the oil water separator of removing liquid water in this device for this reason, and also should be provided with evaporative condenser and the silica dehydrator tower of removing water vapour in the stabilizator back.2. compare with traditional down-hole mobile air conditioner, heat transfer area is big in its compact conformation, the unit volume, quality is little, mobility good.3. compare with traditional down-hole mobile air conditioner, it can regulate air mass flow and temperature that turbine is imported and exported by the regulatory function of heat control valve, and the big I of refrigerating capacity is carried out step-less adjustment, and it is lowered the temperature with cold flexible modulation as required.4. compare with traditional down-hole mobile air conditioner, therefore the power of its blower fan do not need consumed power from the turbine expansion merit, do not have potential safety hazard in the down-hole.5. compressed air also is cold-producing medium and refrigerating medium simultaneously, is directly used in the cooling of development end zone, so cooling rate is fast, and capacity usage ratio height, environmentally safe.6. compare with traditional down-hole mobile air conditioner, only need the control valve of operation turbine inlet just can guarantee that the expansion of its inlet and outlet pressure recently reaches required low temperature generally speaking, refrigerating capacity is convenient to regulate, and operational management is convenient.7. compare with traditional down-hole mobile air conditioner, special-purpose diffuser can produce the local comfort subenvironment around the underground work personnel, and cryogenic energy utilization is effective.
Description of drawings
Fig. 1 is that the system that utilizes method provided by the invention to carry out local cooling under the coal mine forms schematic diagram.
Label title among Fig. 1: 1, air compressor; 2, cooler; 3, oil water separator; 4, stabilizator; 5, evaporative condenser; 6, drying tower; 7, strainer; 8, heat control valve; 9, regenerator; 10, High Pressure Water Separator; 11, drain hole; 12, cooling turbine unit; 13, blower fan; 14, mix the gas control valve; 15, diffuser.
The specific embodiment
Below in conjunction with accompanying drawing 1 and an embodiment a kind of method and system thereof that is used for local cooling under the coal mine of the present invention is described further.
As shown in Figure 1, a kind of method and system thereof that is used for local cooling under the coal mine is made up of aboveground part and down-hole part.
Described above ground portion is made up of air compressor 1, cooler 2, oil water separator 3, stabilizator 4, evaporative condenser 5, drying tower 6.Aboveground air becomes the gas of HTHP after air compressor 1 compression, cool off under level pressure through subcooler 2 water that is cooled therein, temperature is reduced to normal temperature, separate airborne lubrication oil and moisture through oil water separator 3 then, through behind the stabilizator 4, remove airborne steam through evaporative condenser 5 and drying tower 6 again.
Described down-hole part is made up of strainer 7, heat control valve 8, regenerator 9, High Pressure Water Separator 10, cooling turbine unit 12, blower fan 13, mixed gas control valve 14, diffuser 15, to in strainer 7, remove wherein solid impurity through the dry air after the dehumidifying, regulate flow and the temperature that turbines are imported and exported air by heat control valve 8.System is at regenerator 9 of turbine outlet device, and allowing expands subtracts low-temperature airflow that enthalpy comes out and carry out interchange of heat therein with normal temperature air-flow from ground.Air after Returning heat-exchanger 9 further is cooled stream is isolated aqueous water for 10 li in High Pressure Water Separator, enters cooling turbine unit 12 again and expands therein and subtract the enthalpy drop temperature, and aqueous water is then through drain hole 11 discharges of High Pressure Water Separator 10 bottoms.Air-flow subtracts the enthalpy drop temperature in regenerator 9 after, can reduce the temperature of the air that enters cooling turbine unit 12, thereby reduce the air themperature of cooling turbine unit 12 outlets, Cryogenic air also can improve the air themperature that enters blower fan 13 through Returning heat-exchanger 9 simultaneously.In order to improve the economy of system, can make underground air carry out primary retirn air and mix by mixing the effect of gas control valve 14, the air-flow that reaches comfort temperature is delivered to around the miner of development end work by diffuser 15 after blower fan 13 pressurizations.
The supply gas pressure that present embodiment is used is 0.18～0.22 (MPa), and air consumption is 16.6～20.1 (m
3/ min), refrigerating capacity is greater than 23 (kW), and noise is less than 85 (dB), under normal air feed situation, it can be rapidly drops to the air dry-bulb temperature of subenvironment around the miner of lining, driving face zone (small bore) below 26 ℃ by 32 ℃, and can steady in a long-term move.
Advantages such as utilizing air stream that the present invention forms to expand to subtract enthalpy self-operated type colliery downhole cooling system to have can operation steady in a long-term, cooling-down effect is obvious, energy consumption is low and volume is little.Simultaneously, the driving force of downhole cooling part flows from compressed air, not electricity consumption, does not produce static and mechanical spark, and safety does not have explosion-proof problem well, is particularly suitable for the colliery downhole cooling.
Claims (3)
1. a method and system thereof that is used for local cooling under the coal mine, it is characterized in that, whole system is made up of above ground portion and down-hole part, and aboveground air is through obtaining high pressure dry air stream behind the above ground portion, and the down-hole part of flowing through then obtains can be used for the low-temperature airflow of down-hole local cooling.
2. a kind of method and system thereof that is used for local cooling under the coal mine according to claim 1, it is characterized in that above ground portion is made up of air compressor, cooler, oil water separator, stabilizator, evaporative condenser and drying tower successively according to the aboveground air position of flowing through.
3. a kind of method and system thereof that is used for local cooling under the coal mine according to claim 1, it is characterized in that, the down-hole part is made up of strainer, heat control valve, regenerator, High Pressure Water Separator, cooling turbine unit, blower fan, mixed gas control valve and diffuser, regenerator is installed in turbine outlet, High Pressure Water Separator is installed in turbine inlet, and the low-temperature airflow of underground air and turbine outlet mixes gas before the blower fan import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110109376.2A CN102140927B (en) | 2011-04-29 | 2011-04-29 | Method and system for reducing temperature locally under coal mine shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110109376.2A CN102140927B (en) | 2011-04-29 | 2011-04-29 | Method and system for reducing temperature locally under coal mine shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102140927A true CN102140927A (en) | 2011-08-03 |
| CN102140927B CN102140927B (en) | 2014-08-27 |
Family
ID=44408693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110109376.2A Expired - Fee Related CN102140927B (en) | 2011-04-29 | 2011-04-29 | Method and system for reducing temperature locally under coal mine shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102140927B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900452A (en) * | 2012-10-29 | 2013-01-30 | 中钢集团马鞍山矿山研究院有限公司 | Technique for cooling deep mining area by using ground temperature of shallow goaf and waste roadway |
| CN105201541A (en) * | 2015-08-18 | 2015-12-30 | 王勇 | Mine underground cooling device capable of displaying pressure |
| CN106223992A (en) * | 2016-08-29 | 2016-12-14 | 北京建筑大学 | High-temperature mine local refrigeration system and method |
| CN106285762A (en) * | 2016-08-29 | 2017-01-04 | 北京建筑大学 | high-temperature high-humidity mine local refrigeration system and method |
| CN107191215A (en) * | 2017-05-19 | 2017-09-22 | 中铁隧道勘测设计院有限公司 | Mining Method limited drainage type Tunnel Water Leakage aeration cooling system |
| CN107270584A (en) * | 2017-07-25 | 2017-10-20 | 中南大学 | A kind of distributed cooling air source heat pump system of utilization mine low grade heat energy |
| CN109989712A (en) * | 2019-04-18 | 2019-07-09 | 中煤科工集团西安研究院有限公司 | Underground coal mine air guided drilling aperture cooling lubricating system and method |
| CN110410130A (en) * | 2019-06-26 | 2019-11-05 | 重庆大学 | A kind of the underground coal mine air-conditioning and refrigerating method of small anti-explosion compressed air-driven |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089366A (en) * | 2007-07-05 | 2007-12-19 | 南京大学 | Temp lowering device for deep mine |
| US20080282702A1 (en) * | 2007-05-15 | 2008-11-20 | Ingersoll-Rand Company | Integrated absorption refrigeration and dehumidification system |
| CN201173202Y (en) * | 2007-07-25 | 2008-12-31 | 李成武 | Mobile cold air units for mining |
| CN201706621U (en) * | 2010-06-29 | 2011-01-12 | 浙江大学 | Air compression refrigerating and dehumidifying air-conditioning system |
| CN202165105U (en) * | 2011-04-29 | 2012-03-14 | 武汉纺织大学 | Device for reducing local temperature in coal mine |
-
2011
- 2011-04-29 CN CN201110109376.2A patent/CN102140927B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080282702A1 (en) * | 2007-05-15 | 2008-11-20 | Ingersoll-Rand Company | Integrated absorption refrigeration and dehumidification system |
| CN101089366A (en) * | 2007-07-05 | 2007-12-19 | 南京大学 | Temp lowering device for deep mine |
| CN201173202Y (en) * | 2007-07-25 | 2008-12-31 | 李成武 | Mobile cold air units for mining |
| CN201706621U (en) * | 2010-06-29 | 2011-01-12 | 浙江大学 | Air compression refrigerating and dehumidifying air-conditioning system |
| CN202165105U (en) * | 2011-04-29 | 2012-03-14 | 武汉纺织大学 | Device for reducing local temperature in coal mine |
Non-Patent Citations (3)
| Title |
|---|
| 张朝昌等: "透平膨胀制冷在高温矿井降温中的应用", 《西安科技大学学报》 * |
| 褚召祥等: "矿井压气蒸发冷却降温技术在煤矿的应用", 《矿业快报》 * |
| 陈峰等: "姚桥煤矿局部降温技术应用", 《2010年煤炭科学与技术研究论文集》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900452A (en) * | 2012-10-29 | 2013-01-30 | 中钢集团马鞍山矿山研究院有限公司 | Technique for cooling deep mining area by using ground temperature of shallow goaf and waste roadway |
| CN102900452B (en) * | 2012-10-29 | 2014-12-17 | 中钢集团马鞍山矿山研究院有限公司 | Technique for cooling deep mining area by using ground temperature of shallow goaf and waste roadway |
| CN105201541A (en) * | 2015-08-18 | 2015-12-30 | 王勇 | Mine underground cooling device capable of displaying pressure |
| CN106285762B (en) * | 2016-08-29 | 2019-07-30 | 北京建筑大学 | High-temperature high-humidity mine partial cooling system and method |
| CN106285762A (en) * | 2016-08-29 | 2017-01-04 | 北京建筑大学 | high-temperature high-humidity mine local refrigeration system and method |
| CN106223992B (en) * | 2016-08-29 | 2019-06-28 | 北京建筑大学 | High-temperature mine partial cooling system and method |
| CN106223992A (en) * | 2016-08-29 | 2016-12-14 | 北京建筑大学 | High-temperature mine local refrigeration system and method |
| CN107191215A (en) * | 2017-05-19 | 2017-09-22 | 中铁隧道勘测设计院有限公司 | Mining Method limited drainage type Tunnel Water Leakage aeration cooling system |
| CN107270584A (en) * | 2017-07-25 | 2017-10-20 | 中南大学 | A kind of distributed cooling air source heat pump system of utilization mine low grade heat energy |
| CN107270584B (en) * | 2017-07-25 | 2019-09-24 | 中南大学 | A kind of distributed cooling air source heat pump system using mine low grade heat energy |
| CN109989712A (en) * | 2019-04-18 | 2019-07-09 | 中煤科工集团西安研究院有限公司 | Underground coal mine air guided drilling aperture cooling lubricating system and method |
| CN110410130A (en) * | 2019-06-26 | 2019-11-05 | 重庆大学 | A kind of the underground coal mine air-conditioning and refrigerating method of small anti-explosion compressed air-driven |
| CN110410130B (en) * | 2019-06-26 | 2020-07-07 | 重庆大学 | Small explosion-proof compressed air driven coal mine underground air conditioner and refrigeration method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102140927B (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102140927B (en) | Method and system for reducing temperature locally under coal mine shaft | |
| CN100580225C (en) | Temperature lowering device for deep mine | |
| CN103216255B (en) | Compressed air cold conveying cooling system for mine and cooling method thereof | |
| CN201535176U (en) | Mine cooling system | |
| CN102011604B (en) | Movable mine ice-storage air conditioner | |
| CN201043829Y (en) | Mine water source heat pump air conditioning device | |
| CN102767387B (en) | Excavation tunnel heat-insulation flow-dividing heat discharge cooling method | |
| Kamyar et al. | Current developments and challenges of underground mine ventilation and cooling methods | |
| US4480444A (en) | Deep mine cooling system | |
| CN103410549B (en) | Utilize the System and method for that residual heat of electric power plant is lowered the temperature for mine ventilation | |
| CN108224574A (en) | A kind of heat pipe heat system with evaporating type condensing | |
| US20110173947A1 (en) | System and method for gas turbine power augmentation | |
| CN203161278U (en) | Mine vacuum cooling system | |
| CN107314587B (en) | Artificial snow making system and method at temperature of above 0 DEG C | |
| CN202165105U (en) | Device for reducing local temperature in coal mine | |
| CN105370311A (en) | Mine cooling system and mine cooling method | |
| CN202970756U (en) | Mining liquid nitrogen temperature reducing device | |
| CN103362530B (en) | To working face cooling and the apparatus and method for utilizing heat energy in a kind of mining process | |
| CN210068227U (en) | Mine air flow cooling system based on constant-temperature layer cold water source | |
| CN208763685U (en) | A kind of shield machine construction cooling system | |
| CN204436437U (en) | The comprehensive heat sink of a kind of mine | |
| CN109595026B (en) | Mine air cooling dust pelletizing system | |
| CN203399467U (en) | Energy-saving air-cooled compressor cooling system | |
| CN103292388B (en) | Refrigerating system for engine room | |
| CN109268055A (en) | A kind of shield machine construction cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: YILE YU Effective date: 20140718 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Chang Inventor after: Yu Gang Inventor after: Wang Xue Inventor before: Zhang Chang Inventor before: Yu Gang Inventor before: Wu Yile Inventor before: Wang Xue |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG CHANG YU GANG YILE YU WANG XUE TO: ZHANG CHANG YU GANG WANG XUE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140718 Address after: 430073 Hubei city of Wuhan province Luxiang Textile Road No. 1 Applicant after: Wuhan Textile University Address before: 430073 Hubei city of Wuhan province Luxiang Textile Road No. 1 Applicant before: Wuhan Textile University Applicant before: Wu Yile |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20160429 |