CN115182868A - Circulating cooling water system for underground coal mine - Google Patents
Circulating cooling water system for underground coal mine Download PDFInfo
- Publication number
- CN115182868A CN115182868A CN202210965864.1A CN202210965864A CN115182868A CN 115182868 A CN115182868 A CN 115182868A CN 202210965864 A CN202210965864 A CN 202210965864A CN 115182868 A CN115182868 A CN 115182868A
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- CN
- China
- Prior art keywords
- water
- cooling water
- cooling
- circulating
- vapor 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.)
- Pending
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 57
- 239000003245 coal Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 17
- 239000008239 natural water Substances 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 239000002349 well water Substances 0.000 claims 1
- 235000020681 well water Nutrition 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a circulating cooling water system for a coal mine underground, which comprises a first water-vapor separator, a second water-vapor separator, a circulating water tank and a reclaimed water supply pipe, wherein the first water-vapor separator, the second water-vapor separator, the circulating water tank and the reclaimed water supply pipe are arranged on one side of a cooling pipe of a gas drainage pump, a drainage channel, the cooling water tank and a sedimentation tank are sequentially arranged on one side of the circulating water tank, a mine natural water supply pipe is mounted on the sedimentation tank in a hanging manner, the cooling water tank and the sedimentation tank are mutually communicated through an overflow port, a plate-fin heat exchanger is arranged in the cooling water tank, and the plate-fin heat exchanger, the first water-vapor separator, the second water-vapor separator and the circulating water tank form a cooling circulating loop. The invention provides a sedimentation tank, a cooling water tank and a drainage channel which are arranged outside a coal mine gas drainage chamber, wherein a plate-fin heat exchanger is arranged in the cooling water tank, and cooling water flows back to a circulating water tank after exchanging heat with natural water through the plate-fin heat exchanger for recycling of a gas drainage pump, so that the cooling efficiency of the gas drainage pump is guaranteed by utilizing continuous natural mine water.
Description
Technical Field
The invention relates to the technical field of circulating water cooling of underground fixed large-scale equipment of a coal mine, in particular to a circulating cooling water system for the underground coal mine.
Background
The large-scale fixed equipment adopting the water cooling mode for heat dissipation under the coal mine can generate high temperature during operation, and the equipment is cooled by adopting the circulating water cooling mode generally for saving water resources.
The cooling medium that current colliery gas drainage pump used is circulating water + normal water supply (as shown in figure 2), and the circulating water inlet temperature degree of effectual reduction gas drainage pump, be the prerequisite of keeping the operation of pump maximum efficiency, because of the circulating pond volume undersize, the circulation distance is short leads to the cooling effect poor, the cooling water is in high temperature state for a long time, the evaporation capacity increases, influence the normal operating of gas drainage pump, equipment operating efficiency is low, lead to the gas drainage effect poor, not only increased power consumption, still there is certain potential safety hazard.
Disclosure of Invention
The invention provides a circulating cooling water system for a coal mine underground, which aims at the actual use condition of a coal mine gas drainage pump, and carries out heat exchange on water in a circulating water tank and natural mine water through a plate-type radiator on the basis of an original radiating system so as to reduce the temperature of circulating water and ensure the safe operation of the gas drainage pump.
In order to achieve the purpose, the invention adopts the following technical scheme:
a circulating cooling water system for a coal mine underground comprises a first water-vapor separator, a second water-vapor separator, a circulating water pond and a reclaimed water supply pipe, wherein the first water-vapor separator, the second water-vapor separator, the circulating water pond and the reclaimed water supply pipe are arranged on one side of a cooling pipe of a gas drainage pump, a drainage channel, the cooling water pond and a sedimentation pond are sequentially arranged on one side of the circulating water pond, a mine natural water supply pipe is mounted on the sedimentation pond in a hanging mode, the cooling water pond and the sedimentation pond are mutually communicated through an overflow port, a plate-fin heat exchanger is arranged in the cooling water pond, and the plate-fin heat exchanger, the first water-vapor separator, the second water-vapor separator and the circulating water pond form a cooling circulation loop.
Furthermore, a submersible pump is arranged in the circulating water tank, and the reclaimed water supply pipe and the submersible pump are communicated with one end of the water inlet of the cooling pipe through a tee joint.
Furthermore, the first water-vapor separator and the second water-vapor separator are both connected with the water inlet end of the plate-fin heat exchanger through a heating medium water supply pipe.
Furthermore, the water outlet end of the plate-fin heat exchanger is connected with a refrigerant return pipe, and the refrigerant return pipe is connected with a spray head suspended at the top of the circulating water tank.
Furthermore, an overflow pipe is connected to the outer wall of the upper part of the cooling water pool, and a drain pipe is arranged on the outer wall of the lower part of the cooling water pool.
Furthermore, the overflow pipe and the drain pipe both extend to the top of the drain channel, and the drain pipe is provided with a stop valve.
The beneficial effects of the invention are as follows:
according to the invention, the sedimentation tank, the cooling water pool and the drainage channel are arranged outside the coal mine gas drainage chamber, the plate-fin heat exchanger is arranged in the cooling water pool, the circulating water pump pumps cooling water discharged by the gas drainage pump into the plate-fin heat exchanger through a pipeline, the cooling water flows back to the circulating water pool after exchanging heat with natural water through the plate-fin heat exchanger for recycling of the gas drainage pump, the natural water in the cooling water pool flows into the drainage channel through the pipeline below the cooling water pool after exchanging heat, and is finally discharged into a shaft bottom sump, so that the cooling efficiency of the gas drainage pump is ensured by utilizing continuous natural mine water.
Drawings
FIG. 1 is a schematic diagram of an improved structure of a circulating cooling water system for an underground coal mine, which is provided by the invention;
FIG. 2 is a schematic structural diagram of a circulating cooling water system for underground coal mine in the prior art.
In the figure: the system comprises a first water-vapor separator 1, a second water-vapor separator 2, a circulating water tank 3, a reclaimed water supply pipe 4, a sedimentation tank 5, a cooling water tank 6, a drainage channel 7, an 8-plate fin heat exchanger, a heat medium water supply pipe 9, a refrigerant water return pipe 10, an overflow port 11, an overflow pipe 12, a mine natural water supply pipe 13 and a heat exchange water tank 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The existing circulating cooling water system for underground coal mines is shown in figure 2:
the gas extraction pump cooling system comprises a first water-vapor separator 1, a second water-vapor separator 2, a circulating water tank 3, a middle water supply pipe 4, a heat exchange water tank 14 and a plate-fin heat exchanger 8, wherein a heating medium circularly flows among the first water-vapor separator 1, the second water-vapor separator 2, the circulating water tank 3 and the plate-fin heat exchanger 8 to cool the gas extraction pump, the middle water supply pipe 4, the circulating water tank 3, the first water-vapor separator 1 and the second water-vapor separator 2 are used for separating water level cooling circulating water, the circulation water is in a high-temperature state for a long time due to the fact that the volume of the circulating water tank 3 is too small and the circulation distance is short, the cooling effect is poor, and the cooling water is in a high-temperature state for a long time, the evaporation amount is increased, and the normal operation of the gas extraction pump is influenced.
For this reason, the cooling system is modified as follows:
referring to fig. 1, the circulating cooling water system for the underground coal mine comprises a first water-vapor separator 1, a second water-vapor separator 2, a circulating water tank 3 and a middle water supply pipe 4 which are arranged on one side of a cooling pipe of a gas drainage pump, wherein a drainage channel 7, a cooling water tank 6 and a sedimentation tank 5 are sequentially arranged on one side of the circulating water tank 3, a natural mine water supply pipe 13 is mounted on the sedimentation tank 5 in a hanging manner, the cooling water tank 6 and the sedimentation tank 5 are mutually communicated through an overflow port 11, and a plate-fin heat exchanger 8 is arranged in the cooling water tank 6;
a submersible pump is arranged in the circulating water tank 3, and the reclaimed water supply pipe 4 and the submersible pump are communicated with one end of a water inlet of the cooling pipe through a tee joint.
The first water-vapor separator 1 and the second water-vapor separator 2 are both connected with the water inlet end of the plate-fin heat exchanger 8 through a heating medium water supply pipe 9, the water outlet end of the plate-fin heat exchanger 8 is connected with a refrigerant return pipe 10, and the refrigerant return pipe 10 is connected with a spray header suspended at the top of the circulating water tank 3, so that the plate-fin heat exchanger 8, the first water-vapor separator 1, the second water-vapor separator 2 and the circulating water tank 3 form a cooling circulating loop.
The outer wall of the upper part of the cooling water pool 6 is connected with an overflow pipe 12, and the outer wall of the lower part of the cooling water pool 6 is provided with a drain pipe.
The overflow pipe 12 and the drain pipe all extend to the drain ditch top, and install the stop valve on the drain pipe.
A first water-vapor separator 1 and a second water-vapor separator 2 are arranged in a coal mine gas drainage chamber, a cooling water pool 6 is arranged at a position 80m away from the gas drainage chamber, a plate heat exchanger is arranged in the cooling water pool 6, a circulating water pump pumps cooling water discharged by a gas drainage pump into a plate-fin heat exchanger 8 through a pipeline, and the cooling water exchanges heat with natural water through the plate-fin heat exchanger 8 and then flows into the circulating water pool 3 for repeated cooling utilization of the gas drainage pump.
The cooling water pool 6 is poured by C30 concrete, natural mine water firstly enters the sedimentation pool 5 through a water pipe, impurities in the water and coal slime are filtered through the sedimentation pool 5, the filtered water enters the cooling water pool 6, the plate-fin heat exchanger 8 is installed in the cooling water pool 6, cooling water discharged by the gas drainage pump is pumped into the plate-fin heat exchanger 8 through a pipeline by the circulating water pump, the cooling water flows back to the circulating water pool 3 after exchanging heat with natural water through the plate-fin heat exchanger 8 and is used for recycling of the gas drainage pump, and the natural water in the cooling water pool 6 flows into the drainage channel through a pipeline below the cooling water pool 6 after exchanging heat and is finally drained into a shaft bottom sump.
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 person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides a colliery is recirculating cooling water system for pit, is including setting up in first vapor separator (1), second vapor separator (2), circulation pond (3) and well water supply pipe (4) of gas drainage pump cooling tube one side, its characterized in that, circulation pond (3) one side has set gradually drainage canal (7), cooling water pond (6) and sedimentation tank (5), natural water delivery pipe (13) of mine are installed to suspension on sedimentation tank (5), cooling water pond (6) and sedimentation tank (5) communicate each other through overflow mouth (11), be provided with plate-fin heat exchanger (8) in cooling water pond (6), plate-fin heat exchanger (8) and first vapor separator (1), second vapor separator (2), circulation pond (3) form the cooling cycle return circuit.
2. The circulating cooling water system for the underground coal mine according to claim 1, wherein a submersible pump is arranged in the circulating water tank (3), and the reclaimed water supply pipe (4) and the submersible pump are communicated with one end of a water inlet of the cooling pipe through a tee joint.
3. The circulating cooling water system for the underground coal mine according to claim 1, wherein the first water-vapor separator (1) and the second water-vapor separator (2) are connected with the water inlet end of the plate-fin heat exchanger (8) through a heat medium water supply pipe (9).
4. The circulating cooling water system for the underground coal mine according to claim 1, wherein a coolant return pipe (10) is connected to a water outlet end of the plate-fin heat exchanger (8), and the coolant return pipe (10) is connected with a spray header suspended at the top of the circulating water tank (3).
5. The underground circulating cooling water system for the coal mine according to claim 1, wherein an overflow pipe (12) is connected to the outer wall of the upper part of the cooling water pool (6), and a drain pipe is installed on the outer wall of the lower part of the cooling water pool (6).
6. A circulating cooling water system used in the underground of a coal mine according to claim 5, characterized in that the overflow pipe (12) and the drain pipe both extend to the upper part of the drain channel, and a stop valve is arranged on the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965864.1A CN115182868A (en) | 2022-08-12 | 2022-08-12 | Circulating cooling water system for underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965864.1A CN115182868A (en) | 2022-08-12 | 2022-08-12 | Circulating cooling water system for underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115182868A true CN115182868A (en) | 2022-10-14 |
Family
ID=83522493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210965864.1A Pending CN115182868A (en) | 2022-08-12 | 2022-08-12 | Circulating cooling water system for underground coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115182868A (en) |
-
2022
- 2022-08-12 CN CN202210965864.1A patent/CN115182868A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221118 Address after: No. 109 Lianhu Road, Shangting community, Xihua Town, Huating City, Pingliang City, Gansu Province Applicant after: HUATING COAL GROUP Co.,Ltd. Address before: No. 109 Lianhu Road, Shangting community, Xihua Town, Huating City, Pingliang City, Gansu Province Applicant before: Huang Anting |