CN100476161C - Deep well temperature reduction system using mine water burst as cold source - Google Patents
Deep well temperature reduction system using mine water burst as cold source Download PDFInfo
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- CN100476161C CN100476161C CNB2008100571110A CN200810057111A CN100476161C CN 100476161 C CN100476161 C CN 100476161C CN B2008100571110 A CNB2008100571110 A CN B2008100571110A CN 200810057111 A CN200810057111 A CN 200810057111A CN 100476161 C CN100476161 C CN 100476161C
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Abstract
The present invention discloses a deep well cool-down system for mine gushing water. The system includes: refrigerating subsystem, pressure convert subsystem and cool-down subsystem; the output extracting end of refrigerating subsystem connects with the water drain end of the mine gushing water drain system, and the output end of refrigerating subsystem connects with cool-down subsystem by pressure convert subsystem. The system extracts cold from mine gushing water by using refrigerating subsystem, then pressure convert subsystem is added for reducing pressure of pipe and equipment, finally, the output cold exchanges of heat with working surface high-temperature air for reducing working surface environmental temperature by cool-down subsystem, at the same time output heat is as heat source of floor heat supply and bath. The system uses stratum energy fully and assures resource sustainable usage and development by self-using of mine gushing water; because the entire producing system is closed cycle, the system is Pollutionless, discharging of exhaust gas and rubbish is decreased farthest, entironment is protected effectually.
Description
Technical Field
The invention relates to a cooling system, in particular to a deep well cooling system which fully utilizes gushing water in a mine as a cold source.
Background
The heat damage is one of natural disasters of mines, and the problem of high-temperature and high-humidity heat damage in the mines becomes more and more serious along with the increase of the mining depth of the mines, which is mainly shown in that the high-temperature and high-humidity mines do not appear in the past production level, the high-temperature and high-humidity mines possibly appear when the mining depth is increased to a certain level, and the high-temperature and high-humidity mines locally appear in the present level, and the more serious problem of high-temperature heat damage possibly appears when the mining is carried out at the depth level. And along with the increase of the mining depth of the mine, the mechanization degree is higher and higher, the mechanical heat dissipation generated by the mechanization degree is larger and larger, and the problem of the heat damage of the mine is more and more prominent. The mine thermal damage not only affects the working efficiency of underground operators and the economic benefit of mines, but also seriously affects the health and life safety of the underground operators and the safety of mines.
In general, the artificial refrigeration cooling technology can be divided into a water cooling system and an ice cooling system, wherein the water cooling system is the application of the mine air conditioning cooling technology, and is a cooling method for performing in-mine artificial refrigeration by using a compression refrigerator taking Freon as a refrigerant; the ice cooling system sprays ice blocks made by the ice maker to the working surface, completes heat exchange through ice-water phase change, or sprays chilled water formed after melting ice underground to the working surface to achieve the purpose of cooling.
The inventor finds that the existing mine air-conditioning cooling system has the following problems that the mine air-conditioning cooling technology can extract small cold quantity (the temperature difference of inlet and outlet water is generally 2-3 ℃), cooling water belongs to a closed circulation system, the flow is small, the extraction of the cold quantity is completely at the cost of electric energy consumption, the operation cost is high, a host and all equipment are generally arranged in a cooling working face roadway, cold air and fresh air flow are mixed to form mixed air and are sent to a working face, and the cooling effect is seriously influenced. In addition, the displaced heat cannot be completely discharged, so that the efficiency of the refrigerator is low and the cooling effect is not obvious. In addition, the centralized air-conditioning cooling system is gradually developed into a ground centralized type, a combined centralized type and a downhole local distributed type according to the arrangement form, but the ground centralized air-conditioning system has large pressure-bearing capacity of a secondary refrigerant circulating pipeline, is easy to corrode and damage, and has large cold loss; the air conditioner has poor effect, poor economy and low safety in wind places; in addition, the cooling distance is short, the required water amount is large, and the temperature difference of the chilled water is small. The combined air conditioning system is that the ground and the underground are provided with the refrigeration stations at the same time, the condensation heat is discharged concentratedly on the ground, but the refrigeration capacity is limited by the reflux heat extraction capability of air and water flow in the deep mine cooling, so an additional refrigeration unit is usually required to be installed on the ground surface, the operation is complex, and the manufacturing cost is high. And the local distributed air-conditioning system is distributed, the refrigerant circulation pipeline is complex, and the operation and management are inconvenient. The application of the method in deep well cooling is severely restricted by the problems.
The ice-cooling system has an important problem, namely the problem of mechanical design and pipeline blockage of an ice conveying pipeline, and has high requirements on the aspects of system operation management and control.
Disclosure of Invention
The invention provides a deep well cooling system taking mine water burst as a cold source, which can extract cold energy by taking the mine water burst as the cold source, supply the cold energy to a cooling subsystem, and carry out heat exchange between the cooling subsystem and a working surface.
The purpose of the invention is realized by the following technical scheme:
the embodiment of the invention provides a deep well cooling system taking mine water burst as a cold source, which comprises: a refrigeration subsystem, a pressure conversion subsystem and a cooling subsystem; the cooling water return end of the refrigeration subsystem is connected with the water sump B, and the drainage end of the water sump B is respectively connected with the water sump C and the existing drainage system through the drainage system; the mine water burst output end of the water sump C is connected with the water sump A through a pipeline, an open type ditch and an open type water sump, the mine water burst drainage end of the water sump A is connected with the cooling water inlet end of the refrigeration subsystem through a water treatment system, and the cold output end of the refrigeration subsystem is connected with the cooling subsystem through a pressure conversion subsystem to form a closed circulation system.
The water sump A and the water sump B are both water sumps arranged at the-600 level in the mine; the water sump C is a water sump provided at-450 level in the mine.
The pressure conversion subsystem is connected between the refrigeration subsystem and the cooling subsystem, is connected with the refrigeration subsystem to form an upper circulation closed-loop circulation subsystem, and is connected with the cooling subsystem to form a lower circulation closed-loop subsystem.
The cooling subsystem is arranged at-1010 level in the mine and is used for exchanging heat between the extracted cold energy conveyed by the refrigeration subsystem through the pressure conversion subsystem and the high-temperature air of the working face so as to reduce the environmental temperature of the working face.
The refrigeration subsystem is disposed within the mine at-600 level and the pressure conversion subsystem is disposed within the mine at-800 level.
The embodiment of the invention also provides a deep well cooling system taking mine water burst as a cold source, which comprises: the cooling water return end of the refrigeration subsystem is connected with the sump, the mine water inflow and drainage end of the sump is connected with the cooling water inlet end of the refrigeration subsystem through a horizontal pipeline, an open type ditch and the open type sump, and the cold output end of the refrigeration subsystem is connected with the cooling subsystem through a pipeline to form a closed circulation system.
The sump is a sump disposed at-700 level within the mine.
The flow of the cooling water return end of the refrigeration subsystem is 400m3The flow of the water discharging end of the mine well of the water sump is 60m3/h。
The refrigeration subsystem is located within the mine at-700 levels.
The cooling subsystem is located within the mine at-980 levels.
According to the technical scheme provided by the embodiment of the invention, the cold quantity extraction end of the refrigeration subsystem is connected with the drainage end of the mine water burst drainage system, the cold quantity is extracted from the mine water burst of each water sump, and the cold quantity extracted by the refrigeration subsystem is conveyed to the cooling subsystem through the pressure conversion subsystem to serve as a cold source for heat exchange between the cooling subsystem and the working face. The cold source utilized by the system is mine water burst, stratum energy is fully utilized, and sustainable utilization and development of resources are guaranteed; the whole system is in closed cycle without pollution, reduces the discharge of waste gas and waste to the maximum extent, effectively protects the ecological environment and has remarkable social benefit.
Drawings
FIG. 1 is a schematic connection diagram of a deep well cooling system using mine water burst as a cold source according to an embodiment of the present invention;
FIG. 2 is a schematic connection diagram of a deep well cooling system using mine water as a cold source according to another embodiment of the present invention;
fig. 3 is a schematic diagram of process parameters of a deep well cooling system using mine water burst as a cold source according to an embodiment of the present invention.
Detailed Description
The deep well cooling system with the mine gushing water as the cold source solves the defects of a mine air conditioning cooling technology and an ice cooling technology, and the mine gushing water is used as the cold source of the deep well cooling system. Mine water gushes are a type of ground water that is flushed from rock formations during mine excavation. Under the condition that the water cooling system is not used as a cold source of a deep well cooling system, generally, a method of arranging water bins is adopted to collect gushing water of mines with different levels, and the gushing water is pumped to the ground surface through a pump station and is discharged as waste water. The system takes a large amount of mine water burst as a natural cold source through a refrigeration subsystem (HEMS-I subsystem), and extracts cold from the mine water burst; meanwhile, a pressure conversion subsystem (HEMS-PT subsystem) is used for reducing the pressure born by the pipeline and the equipment; and finally, the extracted cold energy is subjected to heat exchange with high-temperature air of the working face through a cooling subsystem (HEMS-II subsystem), so that the environmental temperature of the working face is reduced.
The system can be divided into the following two modes: the cooling mode of the head cycle cooling source and the cooling mode of the horizontal cycle cooling source are further described below with reference to the accompanying drawings and specific embodiments for the convenience of understanding.
Example one
As shown in fig. 1, the deep well cooling system that mine gushing water that this embodiment provided is the cold source, and this system is difference in height circulation cold source cooling mode, specifically includes: a refrigeration subsystem, a pressure conversion subsystem and a cooling subsystem; the cooling water return end of the refrigeration subsystem is connected with the water sump B, and the drainage end of the water sump B is respectively connected with the water sump C and the existing drainage system through the drainage system; the mine water burst output end of the water sump C is connected with the water sump A through a pipeline, an open type ditch and an open type water sump, the mine water burst drainage end of the water sump A is connected with the cooling water inlet end of the refrigeration subsystem through a water treatment system, the cold output end of the refrigeration subsystem is connected with a closed circulation system through a pressure conversion subsystem and a cooling subsystem, the pressure conversion subsystem is connected with the refrigeration subsystem to form an upper circulation closed circulation subsystem, and the pressure conversion subsystem is connected with the cooling subsystem to form a lower circulation closed circulation subsystem.
The water sump A and the water sump B are both water sumps which are arranged in the mine and are horizontal to 600 degrees; the water bin C is a-450 horizontal water bin arranged in a mine, each water bin is used as a container for storing mine water burst, the mine water burst in the water bin A is a cold source for extracting cold energy for the refrigeration subsystem, the water bin B is used for collecting the mine water burst with the cold energy extracted by the refrigeration subsystem and higher temperature, and the water bin C is used as an open water bin for cooling the mine water burst discharged from the water bin B.
The cooling subsystem is arranged at-1010 level in the mine and is used for exchanging heat between the extracted cold energy transmitted by the refrigeration subsystem through the pressure conversion subsystem and the high-temperature air of the working face so as to reduce the ambient temperature of the working face 7.
The cooling system of the altitude difference circulation cold source cooling mode in practice is as follows: the return water of the cooling water of the refrigerating unit of the refrigeration subsystem (HEMS-I) is discharged from a-600 water bin B to a drainage ditch of a-450 horizontal roadway through a pipeline, flows into a-450 water bin C from the drainage ditch, is cooled through the pipeline, an open type water ditch and an open type water bin, and is discharged back to a-600 water bin A through the pipeline, so that the water temperature can be cooled to be within 30 ℃, and a-600 → -450 → -600 altitude difference circulation cold source cooling mode is formed. And then the refrigeration work station (a refrigeration subsystem (HEMS-I)), the pressure conversion work station (a pressure subsystem (HEMS-PT)) and the cooling work station (a cooling subsystem (HEMS-II)) work jointly, and the refrigeration quantity extracted from the mine water burst is used for cooling the working surface. In the cooling system of this mode, a cooling work station (cooling subsystem (HEMS-I)) is set at-600 level in the mine, a pressure conversion work station (pressure conversion subsystem (HEMS-PT)) is set at-800 level in the mine, and a cooling work station (cooling subsystem (HEMS-II)) is set at-1010 level.
Example two
As shown in fig. 2, this embodiment also provides another kind of deep well cooling system that mine gush water is the cold source, and this system is horizontal circulation cold source cooling mode, specifically includes: the cooling water return end of the refrigeration subsystem is connected with the sump, the mine water inflow and drainage end of the sump is connected with the cooling water inlet end of the refrigeration subsystem through a horizontal pipeline, an open type ditch and the open type sump, and the cold output end of the refrigeration subsystem is connected with the cooling subsystem through a pipeline to form a closed circulation system.
Wherein the water sump is a sump provided at-700 level within the mine, the refrigeration subsystem is provided at-700 level within the mine, and the cooling subsystem is provided at-980 level within the mine.
The actual horizontal circulation cold source cooling mode system is as follows: cooling water return water (38 ℃) of a refrigerating unit of a refrigeration subsystem (HEMS-I) is cooled by a-700 water sump and then is used as a main cold source, and the flow rate of the cooling water return water is 400m3H is used as the reference value. In addition, the water burst in the mine is 60m3The water source can be used as an auxiliary cold source, and circulating cooling water and mine water burst are mixed to be used as a cooling water source. Cooling to 30 ℃ through a horizontal pipeline, an open ditch and an open sump, and then entering a cooling water inlet pipe of an HEMS-I unit to form a horizontal circulation of-700 → -700And (5) an annular cold source cooling mode. The system is used for circulating cooling water (400 m)3H) and mine water burst (60 m)3And h) mixing the materials to be used as a cooling water source, extracting cold energy from the cooling water by using a refrigerating unit of the refrigerating subsystem (HEMS-I) and supplying the cold energy to the cooling subsystem (HEMS-II), and generating cold air by the cooling unit of the HEMS-II to directly cool the working surface. Wherein,
a refrigeration workstation (refrigeration subsystem (HEMS-I)) is disposed within the mine at-700 level and a desuperheating workstation (desuperheating subsystem (HEMS-II)) is disposed within the mine at-980 level.
As shown in FIG. 3, according to the temperature reduction system test in the first embodiment used in practice, the temperature of the primary side inlet water of the refrigeration subsystem (HEMS-I) is 29 ℃, and the temperature of the outlet water is 38 ℃; the secondary side water supply temperature is 7 ℃, and the return water temperature is 12 ℃. The temperature of the primary inlet water of a pressure conversion subsystem (HEMS-PT) is 8 ℃, and the temperature of the outlet water is 11 ℃; the secondary side water supply temperature is 14 ℃, and the return water temperature is 19 ℃. The temperature of inlet water at the primary side of a temperature reduction subsystem (HEMS-II) is 15 ℃, and the temperature of outlet water is 18 ℃; the secondary side inlet air temperature is 31 ℃, the air supply temperature is 22 ℃, and the temperature of the first subsystem and the second subsystem of the system can well meet the requirement of deep well temperature reduction.
In summary, the cooling capacity extraction end of the refrigeration subsystem in the cooling system of the embodiment of the invention extracts cooling capacity from mine gushing water in the sump, and supplies the cooling capacity to the cooling subsystem through the pressure conversion subsystem or directly as a cold source for heat exchange between the cooling subsystem and the working face.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a mine gushes water and is deep well cooling system of cold source which characterized in that, this system includes: a refrigeration subsystem, a pressure conversion subsystem and a cooling subsystem; the cooling water return end of the refrigeration subsystem is connected with the water sump B, and the drainage end of the water sump B is respectively connected with the water sump C and the existing drainage system through the drainage system; the mine water burst output end of the water sump C is connected with the water sump A through a pipeline, an open type ditch and an open type water sump, the mine water burst drainage end of the water sump A is connected with the cooling water inlet end of the refrigeration subsystem through a water treatment system, and the cold output end of the refrigeration subsystem is connected with the cooling subsystem through a pressure conversion subsystem to form a closed circulation system.
2. The deep well cooling system taking mine water burst as a cold source according to claim 1, wherein the water sump A and the water sump B are both water sumps arranged at-600 level in the mine; the water sump C is a water sump provided at-450 level in the mine.
3. The deep well cooling system using mine water burst as a cold source according to claim 1, wherein the pressure conversion subsystem is connected between the refrigeration subsystem and the cooling subsystem, and is connected with the refrigeration subsystem to form an upper circulation closed-loop circulation subsystem, and is connected with the cooling subsystem to form a lower circulation closed-loop subsystem.
4. The deep well cooling system using mine gush water as a cold source according to claim 1, wherein the cooling subsystem is arranged at-1010 level in the mine and is used for performing heat exchange between the extracted cold energy transmitted by the refrigeration subsystem through the pressure conversion subsystem and the high-temperature air of the working face so as to reduce the ambient temperature of the working face.
5. The deep well cooling system with mine gush as a cold source of claim 1, wherein the refrigeration subsystem is placed at-600 level in the mine and the pressure conversion subsystem is placed at-800 level in the mine.
6. The utility model provides a mine gushes water and is deep well cooling system of cold source which characterized in that, this system includes: the cooling water return end of the refrigeration subsystem is connected with the sump, the mine water inflow and drainage end of the sump is connected with the cooling water inlet end of the refrigeration subsystem through a horizontal pipeline, an open type ditch and the open type sump, and the cold output end of the refrigeration subsystem is connected with the cooling subsystem through a pipeline to form a closed circulation system.
7. The deep well cooling system using mine gushing water as a cold source according to claim 6, wherein the sump is a sump provided at-700 level in the mine.
8. The deep well cooling system using mine water burst as cold source according to claim 6, wherein the flow rate of the cooling water return end of the refrigeration subsystem is 400m3The flow of the water discharging end of the mine well of the water sump is 60m3/h。
9. The deep well cooling system with mine gushing water as a cold source of claim 6, wherein the refrigeration subsystem is placed-700 levels inside the mine.
10. The deep well cooling system with mine gushing water as a cold source of claim 6, wherein the cooling subsystem is disposed at-980 level in the mine.
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| CNB2008100571110A CN100476161C (en) | 2008-01-29 | 2008-01-29 | Deep well temperature reduction system using mine water burst as cold source |
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| CN100476161C true CN100476161C (en) | 2009-04-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| MX2011009875A (en) * | 2009-03-20 | 2011-10-12 | Energy Recovery Inc | Efficient methods for operation with high pressure liquids. |
| CN102269008B (en) * | 2011-08-18 | 2013-04-17 | 中煤矿山建设集团有限责任公司 | System for reducing mine temperature by use of constant-temperature water bearing formation |
| CN109339849B (en) * | 2018-10-15 | 2019-08-20 | 中国矿业大学 | A multi-level deep well cooling and geothermal utilization system and process |
| CN110419973B (en) * | 2019-08-09 | 2021-12-10 | 中国矿业大学(北京) | Coal mine bathing system |
| CN110439507B (en) * | 2019-08-09 | 2021-03-09 | 中国矿业大学(北京) | Mine working face cooling system |
| CN116446939B (en) * | 2023-03-21 | 2023-09-22 | 冀中能源峰峰集团有限公司 | A ground refrigeration cooling system for transporting cold through complex deep strata in mines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4480444A (en) * | 1983-05-23 | 1984-11-06 | Alsthom-Atlantique | Deep mine cooling system |
| US4750333A (en) * | 1983-10-03 | 1988-06-14 | Chicago Bridge & Iron Company | Integrated mine cooling and water conditioning system |
| DE4126340C1 (en) * | 1991-08-09 | 1992-08-13 | Ruhrkohle Ag, 4690 Herne, De | Cold supply for underground work air conditioning - uses secondary flow division into two partial flows after passing through work-point refrigeration sets |
| CN2674100Y (en) * | 2004-01-19 | 2005-01-26 | 郎庆田 | Low temp. flashy water for decreasing temp. used for conditioner in mine |
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2008
- 2008-01-29 CN CNB2008100571110A patent/CN100476161C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480444A (en) * | 1983-05-23 | 1984-11-06 | Alsthom-Atlantique | Deep mine cooling system |
| US4750333A (en) * | 1983-10-03 | 1988-06-14 | Chicago Bridge & Iron Company | Integrated mine cooling and water conditioning system |
| DE4126340C1 (en) * | 1991-08-09 | 1992-08-13 | Ruhrkohle Ag, 4690 Herne, De | Cold supply for underground work air conditioning - uses secondary flow division into two partial flows after passing through work-point refrigeration sets |
| CN2674100Y (en) * | 2004-01-19 | 2005-01-26 | 郎庆田 | Low temp. flashy water for decreasing temp. used for conditioner in mine |
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Assignee: Beijing Hengmaoli Science & Technology Co., Ltd. Assignor: He Manchao Contract record no.: 2010110000098 Denomination of invention: Deep well temperature reduction system using mine water burst as cold source Granted publication date: 20090408 License type: Exclusive License Open date: 20080813 Record date: 20100729 |
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Assignee: Beijing Hengmaoli Science & Technology Co., Ltd. Assignor: He Manchao Contract record no.: 2010110000098 Date of cancellation: 20150504 |
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