CN212337343U - Direct closed circulation system that cools down for mine through surface cooler - Google Patents
Direct closed circulation system that cools down for mine through surface cooler Download PDFInfo
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- CN212337343U CN212337343U CN202020864490.0U CN202020864490U CN212337343U CN 212337343 U CN212337343 U CN 212337343U CN 202020864490 U CN202020864490 U CN 202020864490U CN 212337343 U CN212337343 U CN 212337343U
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Abstract
The utility model discloses a closed circulation system for directly cooling a mine through a surface cooler, which comprises a ground part and an underground part; the ground part consists of a surface air cooler, a high-pressure circulating pump, a high-pressure water inlet pipe, a high-pressure water return pipe, an ethylene glycol water replenishing tank, a water replenishing pump and a surface air cooler fan; the underground part consists of a high-pressure water return pipe, a high-low pressure heat exchanger, an underground circulating water inlet pipe, an underground circulating water return pipe, an underground circulating water pump, an air cooler and an air cooler local fan. The utility model discloses utilize outdoor natural cold source cold volume to realize the mine cooling to can realize independently adjusting through the flow of adjustment circulating pump according to outdoor temperature variation, it is strong to have adaptability, and the wide characteristics of control range have reduced refrigerating system energy consumption, reduction equipment working costs, thoroughly solved the problem that outdoor equipment freezes.
Description
Technical Field
The utility model belongs to mine cooling technology especially relates to a through the direct closed circulation system that is the mine cooling of surface cooler, specifically can explain for the system absorbs direct transport of cold volume underground of cold volume and cool down after the outdoor nature cold source cold volume through the surface cooler.
Background
According to statistics, the average mining depth of the existing coal mines in China is increased by 9m each year, more than 50 mines with the mining depth of more than 700m exist, the deepest mine exceeds 1500m, and 53 percent of the total amount of coal resources are expected to be buried under the ground of 1000 m. As the mining depth increases, the degree of mechanization increases, and the geothermal heat and mechanical heat dissipation that occurs from this also increase. The heat damage problems of high temperature, high humidity and the like begin to be prominent, the working efficiency, personal safety and physical health of underground operators are greatly influenced, corresponding measures are taken to treat the underground operators, and the underground operators are ensured to have proper working environment and the like.
In northern areas of China, a plurality of mines adopting an artificial refrigeration mode exist, a refrigerating unit still normally operates when outdoor air temperature reaches below zero in winter, and in order to prevent the refrigerating unit from being frozen in winter, heating is adopted indoors. Under the condition that an outdoor natural cold source exists, the cooling operation cost of part of mines is not reduced and is not increased.
When the refrigeration equipment runs, heat exchange equipment such as a cooling tower and evaporation cooling equipment is needed, and when the outdoor temperature reaches-5 ℃ or below in northern areas, the equipment is very easy to generate ice hanging and icing phenomena, and even refrigerant in the equipment freezes at the limit temperature, so that the equipment is damaged or the structure collapses.
The low air temperature and the low moisture content in northern areas in winter are natural cold sources with zero investment and no pollution, and how to utilize the natural cold sources to realize mine cooling and reduce the initial investment and the operating cost of equipment is the problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the mine refrigeration plant and easily appear hanging ice, when freezing phenomenon, extreme temperature cause the inside refrigerant of equipment even to freeze and lead to equipment to damage or the technical defect that the structure collapses, the utility model provides a through the direct mine cooling closed circulation system that is of surface cooler, this system is through utilizing the surface cooler to absorb outdoor natural cold volume after, directly carries the underground with cold volume and cools down, solves the hot evil problem of mine high temperature. The system can automatically adjust according to outdoor weather conditions, reduces the energy consumption of a refrigeration system, reduces the operation cost of equipment, and does not have the problem that outdoor equipment is frozen out.
In order to achieve the purpose, the utility model adopts the technical proposal that:
the utility model provides a directly be mine cooling closed circulation system through surface cooler, it includes ground part and downhole part, its characterized in that:
the ground part consists of a surface air cooler, a high-pressure circulating pump, a high-pressure water inlet pipe, a high-pressure water return pipe, an ethylene glycol water replenishing tank, a water replenishing pump and a surface air cooler fan; the underground part consists of a high-pressure water return pipe, a high-low pressure heat exchanger, an underground circulating water inlet pipe, an underground circulating water return pipe, an underground circulating water pump, an air cooler and an air cooler local fan;
the connection relationship of each component of the ground part is as follows: the surface cooler fan is hermetically connected with an air outlet of a shell side of the surface cooler, an air inlet of the shell side of the surface cooler is communicated with the atmosphere, an outlet of a tube side of the surface cooler is communicated with an inlet of a high-pressure side of the high-pressure and low-pressure heat exchanger through a high-pressure circulating pump and a high-pressure water inlet pipe, and an outlet of the high-pressure side of the high-pressure and low-pressure heat exchanger is communicated with an inlet of; the ethylene glycol water replenishing tank is connected with the high-pressure water inlet pipe through an ethylene glycol water replenishing pipe and a water replenishing pump;
the connection relationship of each component of the underground part is as follows: the high-pressure water inlet and return pipeline is connected with the high-pressure side of the high-pressure and low-pressure heat exchanger, the outlet of the low-pressure side of the high-pressure and low-pressure heat exchanger is communicated with the inlet of the air cooler tube pass through an underground circulating water pump and an underground circulating water inlet pipe, and the outlet of the air cooler tube pass is communicated with the inlet of the low-pressure side of the high-pressure and low-pressure heat exchanger through an underground circulating; and the air outlet of the air cooler shell pass is communicated with a place needing cooling.
The utility model discloses circulation system's working method includes ground circulation flow and circulation flow in the pit. Wherein:
the ground circulation flow is as follows: when the average outdoor temperature is lower than the temperature of the underground working face, the system absorbs an outdoor natural cold source by using a surface cooler fan and a surface cooler, high-pressure return water from the underground enters a tube pass of the surface cooler through a high-pressure return water pipe, after heat exchange is carried out between the high-pressure return water and cold air of a shell pass of the surface cooler in the surface cooler to absorb cold energy, the high-pressure return water enters a high-pressure water inlet pipe through a high-pressure circulating pump after the temperature is reduced, the high-pressure water enters a high-pressure side water inlet of a high-pressure and low-pressure heat exchanger through a vertical shaft liquid inlet pipeline, heat exchange is carried out between the high-pressure and low-pressure heat exchangers and underground cold conveying circulating.
The underground circulation flow comprises the following steps: the underground circulating backwater from the underground circulating backwater pipe is conveyed to the water inlet pipe of the air cooler pipe pass at each place needing cooling after the temperature of the cold energy on the high-pressure side is absorbed by the low-pressure side of the high-low pressure heat exchanger and reduced, the underground circulating backwater is subjected to heat exchange with the mine intake air in the air cooler pipe pass inside the air cooler pipe pass, and the underground circulating backwater is conveyed to the low-pressure side of the high-low pressure heat exchanger from the water outlet pipe of the air cooler pipe pass after the temperature is increased, so that the underground (low-pressure side) cooling circulation is completed. The underground inlet air enters the air cooler shell pass after passing through the air cooler local fan, exchanges heat with underground circulating water in the air cooler tube pass to absorb cold energy in the underground circulating water, reduces the temperature, and is conveyed to each working place needing cooling by the air cooler local fan to meet the requirement of mine cooling.
The utility model discloses cooling circulation system is less than the working face temperature in the pit and all can use in principle when outdoor temperature, but in actual operation, and the cooling effect is better when outdoor average temperature is below-5 ℃.
The utility model discloses used surface cooler and fan, high-pressure circulating pump, air cooler and local fan, high-low pressure heat exchanger etc. are the market equipment that the mine was used commonly in the system.
The utility model discloses a beneficial effect does:
the system utilizes the cold energy of an outdoor natural cold source to realize mine cooling, can realize autonomous regulation by regulating the flow of the circulating pump according to outdoor temperature change, has the characteristics of strong adaptability and wide regulation range, reduces the energy consumption of a refrigerating system, reduces the running cost of equipment and thoroughly solves the problem that outdoor equipment is frozen and damaged.
The utility model discloses the application has the current mine equipment investment cost low, the working costs is low, the cooling is effectual. The ground operation device is only a high-pressure circulating water pump and a surface air cooler fan, a cooling circulating water pump and a plate heat exchanger are omitted, and the system is stable in operation and high in reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the arrangement of the circulation system of the present invention.
The illustration shows that 1-surface air cooler, 2-glycol water replenishing pipe, 3-water replenishing pump, 4-glycol water replenishing tank, 5-high pressure circulating pump, 6-high pressure water inlet pipe, 7-underground circulating pump, 8-underground circulating water inlet pipe, 9-air cooler, 10-air cooler local fan, 11-underground circulating water return pipe, 12-high and low pressure heat exchanger, 13-high pressure return pipe and 14-surface air cooler fan.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
The utility model provides a directly be mine cooling closed circulation system through surface cooler, it includes ground part and downhole part, its characterized in that:
the ground part consists of a surface air cooler 1, a high-pressure circulating pump 5, a high-pressure water inlet pipe 6, a high-pressure water return pipe 13, an ethylene glycol water replenishing pipe 2, an ethylene glycol water replenishing tank 4, a water replenishing pump 3 and a surface air cooler fan 14; the underground part consists of a high-pressure water return pipe 13, a high-low pressure heat exchanger 12, an underground circulating water inlet pipe 8, an underground circulating water return pipe 11, an underground circulating water pump 7, an air cooler 9 and an air cooler local fan 10;
the connection relationship of each component of the ground part is as follows: the surface cooler fan 14 is hermetically connected with the shell side air outlet of the surface cooler 1, the shell side air inlet of the surface cooler 1 is directly communicated with the atmosphere, the tube side outlet of the surface cooler 1 is communicated with the inlet of the high-pressure side of the high-pressure and low-pressure heat exchanger 12 through the high-pressure circulating pump 5 and the high-pressure water inlet pipe 6, and the outlet of the high-pressure side of the high-pressure and low-pressure heat exchanger 12 is communicated with the tube side inlet of the surface cooler 1 through the high; the ethylene glycol water replenishing tank 4 is connected with the high-pressure water inlet pipe 6 through an ethylene glycol water replenishing pipe 2 and a water replenishing pump 3;
the connection relationship of each component of the underground part is as follows: the high-pressure water inlet and return pipeline is connected with the high-pressure side of the high-pressure and low-pressure heat exchanger 12, the outlet of the low-pressure side of the high-pressure and low-pressure heat exchanger 12 is communicated with the inlet of the tube pass of the air cooler 9 through the underground circulating water pump 7 and the underground circulating water inlet pipe 8, and the outlet of the tube pass of the air cooler 9 is communicated with the inlet of the low-pressure side of the high-pressure and low-pressure heat exchanger 12 through the underground; the air inlet of the shell side of the air cooler 9 is hermetically connected with the air outlet of the local fan 10 of the air cooler, and the air outlet of the shell side of the air cooler 1 is communicated with a place needing cooling.
The working method of the system of the present invention is described below by taking the mine where the applicant is located as an example, and specifically includes a ground circulation flow and a downhole circulation flow, and the implementation method of the circulation system of the present invention includes a ground circulation flow and a downhole circulation flow. Wherein:
the ground circulation flow is as follows: when the outdoor average temperature is below-5 ℃, the system absorbs an outdoor natural cold source by using a surface cooler fan 14 and a surface cooler 1, high-pressure return water with the temperature of about 15 ℃ from the underground enters a tube pass of the surface cooler 1 through a high-pressure return water pipe 13, the temperature is reduced to 2-4 ℃ after the cold energy is absorbed by heat exchange between the surface cooler 1 and cold air in a shell pass of the surface cooler 1, the high-pressure return water enters a high-pressure water inlet pipe 6 through a high-pressure circulating pump 5, enters a high-pressure side 12 water inlet of a high-low pressure heat exchanger through a vertical well liquid inlet pipeline, the heat exchange is carried out between the high-low pressure heat exchanger 12 and underground cold conveying circulating water, the temperature is increased to about 14-15 ℃, and the high-low pressure heat exchanger is conveyed to the ground through a.
The underground circulation flow comprises the following steps: the temperature of underground circulating return water from the underground circulating return water pipe 11 is about 15-18 ℃, the temperature of cold energy absorbed by the low-pressure side of the high-pressure and low-pressure heat exchanger 12 is reduced to 5-8 ℃, then the cold energy is conveyed to the water inlet pipe of the air cooler 9 tube pass of each place needing cooling through an underground circulating water pump, the cold water with the temperature of 5-8 ℃ exchanges heat with mine inlet air flow in the air cooler 9 shell pass in the air cooler 9 tube pass, the cold water is conveyed to the underground circulating return water pipe 11 from the water outlet pipe of the air cooler 9 tube pass after the temperature is increased to 15-18 ℃, and then the cold water returns to the low-pressure side of the high-pressure and low-pressure heat exchanger 12, so that underground (low-pressure side). The underground inlet air enters the air cooler 9 shell pass after passing through the air cooler local fan 10, exchanges heat with underground circulating water inside the air cooler 9 tube pass, absorbs cold in the underground circulating water, reduces the temperature from 30 ℃ to 22 ℃ or so, and is conveyed to each working place needing cooling by the air cooler local fan 10, so that the requirement of mine cooling is met.
The model of the high-pressure circulating pump 5 in the embodiment is KQSN 150-M7/318;
the high-low pressure heat exchanger 12 model in the above embodiment is a mining shell-and-tube LSS600 model high-low pressure heat exchanger;
the model 9 of the air cooler in the embodiment is a mining MK300 model air cooler; the model 10 of the local fan of the air cooler is FBD No. 7.1/2 multiplied by 45-660/1140;
the model of the underground circulating water pump 7 in the embodiment is MD450-60 multiplied by 4;
in the embodiment, the model 1 of the surface cooler is ZYS-300, and the model 14 of the surface cooler is TM (b) -1240.
The utility model discloses what protect is that equipment layout relation, not equipment itself, the temperature of working method and the model of each part are only according to the mine that the applicant oneself belonged to as the example in the embodiment to do not regard as the restriction to technical scheme, in practice, to different collieries, there is the difference in the aspect of the well depth of coal mine separately, mining conditions, temperature etc. specific equipment lectotype, pipe network diameter and length etc. and it is obvious that technical staff in the field carries out rational design according to professional knowledge and finally reaches the design requirement. In addition, the design of the operation parameters of the whole network management is also a conventional means in the field, which is not the scope protected by the present invention.
The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (1)
1. The utility model provides a directly be mine cooling closed circulation system through surface cooler, it includes ground part and downhole part, its characterized in that:
the ground part consists of a surface air cooler, a high-pressure circulating pump, a high-pressure water inlet pipe, a high-pressure water return pipe, an ethylene glycol water replenishing tank, a water replenishing pump and a surface air cooler fan; the underground part consists of a high-pressure water return pipe, a high-low pressure heat exchanger, an underground circulating water inlet pipe, an underground circulating water return pipe, an underground circulating water pump, an air cooler and an air cooler local fan; wherein:
the connection relationship of each component of the ground part is as follows: the surface cooler fan is hermetically connected with an air outlet of a shell side of the surface cooler, an air inlet of the shell side of the surface cooler is communicated with the atmosphere, an outlet of a tube side of the surface cooler is communicated with an inlet of a high-pressure side of the high-pressure and low-pressure heat exchanger through a high-pressure circulating pump and a high-pressure water inlet pipe, and an outlet of the high-pressure side of the high-pressure and low-pressure heat exchanger is communicated with an inlet of; the ethylene glycol water replenishing tank is connected with the high-pressure water inlet pipe through an ethylene glycol water replenishing pipe and a water replenishing pump;
the connection relationship of each component of the underground part is as follows: the high-pressure water inlet and return pipeline is connected with the high-pressure side of the high-pressure and low-pressure heat exchanger, the outlet of the low-pressure side of the high-pressure and low-pressure heat exchanger is communicated with the inlet of the air cooler tube pass through an underground circulating water pump and an underground circulating water inlet pipe, and the outlet of the air cooler tube pass is communicated with the inlet of the low-pressure side of the high-pressure and low-pressure heat exchanger through an underground circulating; and the air outlet of the air cooler shell pass is communicated with a place needing cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020864490.0U CN212337343U (en) | 2020-05-21 | 2020-05-21 | Direct closed circulation system that cools down for mine through surface cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020864490.0U CN212337343U (en) | 2020-05-21 | 2020-05-21 | Direct closed circulation system that cools down for mine through surface cooler |
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| Publication Number | Publication Date |
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| CN212337343U true CN212337343U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020864490.0U Active CN212337343U (en) | 2020-05-21 | 2020-05-21 | Direct closed circulation system that cools down for mine through surface cooler |
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| CN (1) | CN212337343U (en) |
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