CN220135760U - Geothermal energy cascade utilization circulating device - Google Patents
Geothermal energy cascade utilization circulating device Download PDFInfo
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- CN220135760U CN220135760U CN202321163788.9U CN202321163788U CN220135760U CN 220135760 U CN220135760 U CN 220135760U CN 202321163788 U CN202321163788 U CN 202321163788U CN 220135760 U CN220135760 U CN 220135760U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 289
- 238000005086 pumping Methods 0.000 claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 239000003651 drinking water Substances 0.000 claims description 19
- 235000020188 drinking water Nutrition 0.000 claims description 19
- 239000004576 sand Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 14
- 238000000605 extraction Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a geothermal energy cascade utilization circulating device, which relates to the field of geothermal energy utilization, and comprises a geothermal well, wherein the geothermal well comprises a production well and a recharging well; the heat exchange unit comprises a primary heat exchanger, a secondary heat exchanger, a tertiary heat exchanger and a quaternary heat exchanger which are sequentially connected through pipelines; the geothermal energy collection unit comprises a water pumping pipe assembly and a geothermal water pump set, and the water outlet end of the water pumping pipe assembly is connected with the water pumping end of the geothermal water pump set. According to the utility model, the geothermal water in the second water suction pipe forms an insulating layer for the geothermal water in the first water suction pipe, and the geothermal water in the third water suction pipe forms an insulating layer for the geothermal water in the second water suction pipe, so that the geothermal water in the first water suction pipe has the minimum heat loss, and the geothermal water in the second water suction pipe is secondary, thereby effectively utilizing the heat of the geothermal water in the first water suction pipe and the geothermal water in the second water suction pipe and improving the utilization effect of geothermal energy.
Description
Technical Field
The utility model relates to the field of geothermal energy utilization, in particular to a geothermal energy cascade utilization circulating device.
Background
Geothermal is an energy resource from the earth's interior. Geothermal energy is a clean energy source and is a renewable energy source, and has very broad development prospect. Geothermal cascade utilization is to extract heat energy from geothermal water in multiple levels and utilize geothermal energy in multiple levels. The heat exchange equipment with different use purposes and different use temperature requirements extracts and utilizes the heat of the geothermal fluid step by step from high temperature to low temperature in a mode of series operation, so that the geothermal tail water is directly discharged after being reduced to an ideal temperature. This way of fully utilizing geothermal energy is called geothermal cascade utilization system.
At present, the geothermal water is extracted to the ground surface through an extraction pipeline, then is conveyed to heat exchange equipment for water inflow multi-stage heat exchange, and the length of the extraction pipeline is longer due to the fact that the height of the ground surface to underground hot water is higher, heat of the geothermal water is radiated through the extraction pipeline in the process of conveying the geothermal water in the extraction pipeline, so that when the geothermal water is conveyed to the ground surface, the heat is radiated more, the temperature of the geothermal water is reduced, and the utilization effect of geothermal energy is reduced.
Therefore, it is necessary to invent a geothermal energy cascade utilization cycle apparatus to solve the above problems.
Disclosure of Invention
The utility model aims to provide a geothermal energy cascade utilization circulating device, which solves the problems that the length of an extraction pipeline is long due to the fact that the height from the earth surface to underground hot water is high in the background art, and the geothermal energy is radiated through the extraction pipeline in the process of conveying the geothermal water in the extraction pipeline, so that more heat is radiated when the geothermal water is conveyed to the earth surface, the temperature of the geothermal water is reduced, and the utilization effect of the geothermal energy is reduced.
In order to achieve the above object, the present utility model provides the following technical solutions: a geothermal energy cascade utilization cycle apparatus comprising:
a geothermal well comprising a production well and a recharge well;
the heat exchange unit is arranged between the production well and the recharging well and comprises a primary heat exchanger, a secondary heat exchanger, a tertiary heat exchanger and a quaternary heat exchanger which are sequentially connected through pipelines, and the drainage end of the quaternary heat exchanger is connected with the recharging well through a pipeline;
the heat energy utilization unit is arranged on the heat exchange unit;
the geothermal energy collection unit comprises a water pumping pipe assembly and a geothermal water pump set, wherein the water pumping pipe assembly is arranged in a production well, the water outlet end of the water pumping pipe assembly is connected with the water pumping end of the geothermal water pump set, and the water discharging end of the geothermal water pump set is connected with the water inlet ends of the primary heat exchanger, the secondary heat exchanger and the tertiary heat exchanger through pipelines respectively.
Preferably, the water pumping pipe assembly comprises a first water pumping pipe, a second water pumping pipe and a third water pumping pipe, the second water pumping pipe is sleeved on the first water pumping pipe, the third water pumping pipe is sleeved on the second water pumping pipe, the upper ends of the second water pumping pipe and the third water pumping pipe are sealed, and the geothermal water pump group comprises a first geothermal water pumping pump, a second geothermal water pumping pump and a third geothermal water pumping pump;
the lower extreme of first drinking-water pipe, second drinking-water pipe and third drinking-water pipe all extends to in the geothermal water in the production well, the upper end of first drinking-water pipe is connected with first inlet tube, the one end that first drinking-water pipe was kept away from to first inlet tube is connected with the pumping end of first geothermal water pump, the top outside of second drinking-water pipe is connected with the second inlet tube, the one end that second drinking-water pipe was kept away from to the second inlet tube is connected with the pumping end of second geothermal water pump, the top outside of third drinking-water pipe is connected with the third inlet tube, the one end that third drinking-water pipe was kept away from to the third geothermal water pump is connected with the pumping end of third geothermal water pump.
Preferably, the water discharge end of the first geothermal water pump is connected with the first-stage heat exchanger through a pipeline, the water discharge end of the second geothermal water pump is connected with the second-stage heat exchanger through a pipeline, the water discharge end of the third geothermal water pump is connected with the third-stage heat exchanger through a pipeline, the first geothermal water pump inputs high-temperature geothermal water in the first water pumping pipe into the first-stage heat exchanger for exchanging, the second geothermal water pump inputs geothermal water in the second water pumping pipe and hot water after heat exchange of the first-stage heat exchanger into the second-stage heat exchanger for heat exchange, and the third geothermal water pump inputs geothermal water extracted in the third water inlet pipe and geothermal water after heat exchange of the second-stage heat exchanger into the third-stage heat exchanger for heat exchange.
Preferably, a first cyclone sand remover is connected between the first geothermal water pump and the primary heat exchanger, geothermal water conveyed by the first geothermal water pump is filtered, solid particles in the geothermal water are removed, impurities in the geothermal water are reduced, and accordingly damage to the primary heat exchanger is reduced.
Preferably, a second cyclone sand remover is connected between the second geothermal water pump and the second heat exchanger, geothermal water conveyed by the second geothermal water pump is filtered, solid particles in the geothermal water are removed, impurities in the geothermal water are reduced, and accordingly damage to the second heat exchanger is reduced.
Preferably, a third cyclone sand remover is connected between the third geothermal water pump and the three-stage heat exchanger, and the geothermal water conveyed by the third geothermal water pump is filtered to remove solid particles in the geothermal water, so that impurities in the geothermal water are reduced, and damage to the three-stage heat exchanger is reduced.
Preferably, the heat energy utilization unit comprises a primary heat supply device, a secondary heat supply device, a tertiary heat supply device and a quaternary heat supply device, wherein the primary heat supply device is connected with the primary heat exchanger through a pipeline, the secondary heat supply device is connected with the secondary heat exchanger through a pipeline, the tertiary heat supply device is connected with the tertiary heat exchanger through a pipeline, the quaternary heat supply device is connected with the quaternary heat exchanger through a pipeline, the primary heat supply device can supply heat to a heat energy supply network system by the primary heat supply device, the secondary heat supply device can supply the extracted heat energy to radiant heating or be used for heating water of residents, the tertiary heat supply device can supply the extracted heat energy to floor heating, and the quaternary heat supply device can supply the extracted heat energy to cooling and heating users.
Preferably, the primary heat exchanger, the secondary heat exchanger, the tertiary heat exchanger and the quaternary heat exchanger all adopt plate heat exchangers, and the plate heat exchangers have the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, long service life and the like, can exchange heat efficiently, and improve the utilization efficiency of geothermal energy.
In the technical scheme, the utility model has the technical effects and advantages that:
1. the geothermal water pump assembly is provided with the geothermal water pump assembly and the geothermal water pump assembly, the geothermal water pump assembly consists of a first pumping pipe, a second pumping pipe and a third pumping pipe, the second pumping pipe is sleeved on the first pumping pipe, the third pumping pipe is sleeved on the second pumping pipe, when the geothermal water pump assembly pumps geothermal water, the geothermal water in the second pumping pipe forms an insulating layer for the geothermal water in the first pumping pipe, the geothermal water in the third pumping pipe forms an insulating layer for the geothermal water in the second pumping pipe, so that the geothermal water in the first pumping pipe has the least heat loss, and the geothermal water in the second pumping pipe has the least heat, thereby effectively utilizing the heat of the geothermal water in the first pumping pipe and the geothermal water in the second pumping pipe and improving the utilization effect of the geothermal energy;
2. through being connected with first whirl desander between first geothermal water pump and one-level heat exchanger, be connected with the second whirl desander between second geothermal water pump and the second grade heat exchanger, be connected with the third whirl desander between third geothermal water pump and the tertiary heat exchanger, can filter the desanding to geothermal water of geothermal water pump output, reduce the solid particle in the geothermal water to reduce the damage that causes one-level heat exchanger, second grade heat exchanger and tertiary heat exchanger, improved the life of one-level heat exchanger, second grade heat exchanger and tertiary heat exchanger.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a diagram showing the connection between the water pumping pipe assembly and the geothermal water pump assembly;
fig. 3 is a partial anatomic view of a draft tube assembly of the present utility model.
Reference numerals illustrate:
10. a production well; 11. recharging the well;
20. a primary heat exchanger; 21. a secondary heat exchanger; 22. a three-stage heat exchanger; 23. a four-stage heat exchanger;
30. a water pumping pipe assembly; 301. a first water suction pipe; 302. a second water suction pipe; 303. a third water suction pipe; 304. a first water inlet pipe; 305. a second water inlet pipe; 306. a third water inlet pipe; 31. a geothermal water pump set; 311. a first geothermal water pump; 312. a second geothermal water pump; 313. a third geothermal water pump;
40. a first cyclone desander; 41. a second cyclone desander; 42. a third cyclone desander;
50. a primary heating device; 51. a secondary heating device; 52. three-stage heating equipment; 53. four-stage heating equipment.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
The utility model provides a geothermal energy cascade utilization circulating device as shown in fig. 1 to 3, comprising:
geothermal wells, including production wells 10 and recharge wells 11;
the heat exchange unit is arranged between the production well 10 and the recharging well 11 and comprises a primary heat exchanger 20, a secondary heat exchanger 21, a tertiary heat exchanger 22 and a quaternary heat exchanger 23 which are sequentially connected through pipelines, and the drainage end of the quaternary heat exchanger 23 is connected with the recharging well 11 through a pipeline;
the heat energy utilization unit is arranged on the heat exchange unit;
the geothermal energy collection unit comprises a water pumping pipe assembly 30 and a geothermal water pump group 31, wherein the water pumping pipe assembly 30 is arranged in the production well 10, the water outlet end of the water pumping pipe assembly 30 is connected with the water pumping end of the geothermal water pump group 31, and the water draining end of the geothermal water pump group 31 is connected with the water inlet ends of the primary heat exchanger 20, the secondary heat exchanger 21 and the tertiary heat exchanger 22 through pipelines respectively.
The water pumping pipe assembly 30 comprises a first water pumping pipe 301, a second water pumping pipe 302 and a third water pumping pipe 303, wherein the second water pumping pipe 302 is sleeved on the first water pumping pipe 301, the third water pumping pipe 303 is sleeved on the second water pumping pipe 302, the upper ends of the second water pumping pipe 302 and the third water pumping pipe 303 are sealed, and the geothermal water pump group 31 comprises a first geothermal water pumping pump 311, a second geothermal water pumping pump 312 and a third geothermal water pumping pump 313;
the lower ends of the first water suction pipe 301, the second water suction pipe 302 and the third water suction pipe 303 all extend into geothermal water in the production well 10, the upper end of the first water suction pipe 301 is connected with a first water inlet pipe 304, one end of the first water inlet pipe 304, which is far away from the first water suction pipe 301, is connected with a water pumping end of the first geothermal water suction pump 311, the outer side of the top of the second water suction pipe 302 is connected with a second water inlet pipe 305, one end of the second water inlet pipe 305, which is far away from the second water suction pipe 302, is connected with a water pumping end of the second geothermal water suction pump 312, the outer side of the top of the third water suction pipe 303 is connected with a third water inlet pipe 306, and one end of the third water inlet pipe 306, which is far away from the third water suction pipe 303, is connected with a water pumping end of the third geothermal water suction pump 313.
The water discharge end of the first geothermal water pump 311 is connected with the first-stage heat exchanger 20 through a pipeline, the water discharge end of the second geothermal water pump 312 is connected with the second-stage heat exchanger 21 through a pipeline, the water discharge end of the third geothermal water pump 313 is connected with the third-stage heat exchanger 22 through a pipeline, the first geothermal water pump 311 inputs high-temperature geothermal water in the first water pumping pipe 301 into the first-stage heat exchanger 20 for exchange, the second geothermal water pump 312 inputs geothermal water in the second water pumping pipe 302 and hot water after heat exchange of the first-stage heat exchanger 20 into the second-stage heat exchanger 21 for heat exchange, and the third geothermal water pump 313 inputs geothermal water extracted in the third water inlet pipe 306 and geothermal water after heat exchange of the second-stage heat exchanger 21 into the third-stage heat exchanger 22 for heat exchange.
The heat energy utilization unit comprises a primary heat supply device 50, a secondary heat supply device 51, a tertiary heat supply device 52 and a quaternary heat supply device 53, wherein the primary heat supply device 50 is connected with the primary heat exchanger 20 through a pipeline, the secondary heat supply device 51 is connected with the secondary heat exchanger 21 through a pipeline, the tertiary heat supply device 52 is connected with the tertiary heat exchanger 22 through a pipeline, the quaternary heat supply device 53 is connected with the quaternary heat exchanger 23 through a pipeline, the primary heat supply device 50 can supply heat to an extracted heat energy supply network system, the secondary heat supply device 51 can use the extracted heat energy for radiant heating or for residential water heating, the tertiary heat supply device 52 can use the extracted heat energy for floor heating, and the quaternary heat supply device 53 can use the extracted heat energy for cooling and heating users.
The primary heat exchanger 20, the secondary heat exchanger 21, the tertiary heat exchanger 22 and the quaternary heat exchanger 23 are all plate heat exchangers, and the plate heat exchangers have the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, long service life and the like, can exchange heat efficiently, and improve the utilization efficiency of geothermal energy.
The first geothermal water suction pump 311, the second geothermal water suction pump 312 and the third geothermal water suction pump 313 on the geothermal water pump set 31 work simultaneously, the first geothermal water suction pump 311 works to pump geothermal water in the production well 10 through the first water suction pipe 301, the second geothermal water suction pump 312 works to pump geothermal water in the production well 10 through the second water suction pipe 302, and the geothermal water in the production well 10 is pumped through the third water suction pipe 303, because the second water suction pipe 302 is sleeved on the first water suction pipe 301, the third water suction pipe 303 is sleeved on the second water suction pipe 302, when the geothermal water pump set 31 pumps geothermal water, the geothermal water in the second water suction pipe 302 forms a heat preservation layer for the geothermal water in the first water suction pipe 301, the geothermal water in the third water suction pipe 303 forms a heat preservation layer for the geothermal water in the second water suction pipe 302, so that the geothermal water heat loss in the first water suction pipe 301 is minimum, and the geothermal water in the second water suction pipe 302 is effectively utilized, and the geothermal energy in the first water suction pipe 301 and the second geothermal water suction pipe 302 is effectively utilized;
the first geothermal water pump 311 conveys geothermal water in the first water pumping pipe 301 to the first heat exchanger 20 for heat exchange, the first heat supply device 50 supplies the extracted thermal energy to the pipe network system for heat supply, the geothermal water after heat exchange by the first heat exchanger 20 enters the second heat exchanger 21 for heat exchange, meanwhile, the second geothermal water pump 312 inputs geothermal water in the second water pumping pipe 302 to the second heat exchanger 21 for heat exchange, the second heat supply device 51 can use the extracted thermal energy for radiation heating or for residential water heating, the geothermal water after heat exchange by the second heat exchanger 21 enters the third heat exchanger 22, meanwhile, the third geothermal water pump 313 inputs geothermal water in the third water pumping pipe 303 to the third heat exchanger 22 for heat exchange, the third heat supply device 52 can use the extracted thermal energy for floor heating, the geothermal water after heat exchange by the third heat exchanger 22 enters the fourth heat exchanger 23, the fourth heat supply device 53 can use the extracted thermal energy for users, and finally the geothermal water after heat exchange by the fourth heat exchanger 23 enters the recharging well 11 for circulation, and the local circulation device effectively utilizes the thermal energy in a cascade manner.
As shown in fig. 1, a first cyclone sand remover 40 is connected between the first geothermal water pump 311 and the primary heat exchanger 20.
A second cyclone sand remover 41 is connected between the second geothermal water suction pump 312 and the secondary heat exchanger 21.
A third cyclone sand remover 42 is connected between the third geothermal water suction pump 313 and the three-stage heat exchanger 22.
The first cyclone sand remover 40 is connected between the first geothermal water pump 311 and the first-stage heat exchanger 20, the first cyclone sand remover 40 filters geothermal water conveyed by the first geothermal water pump 311 to remove solid particles in the geothermal water, impurities in the geothermal water are reduced, damage to the first-stage heat exchanger 20 is reduced, the second cyclone sand remover 41 is connected between the second geothermal water pump 312 and the second-stage heat exchanger 21, the second cyclone sand remover 41 filters geothermal water conveyed by the second geothermal water pump 312 to remove solid particles in the geothermal water, impurities in the geothermal water are reduced, damage to the second-stage heat exchanger 21 is reduced, the third cyclone sand remover 42 is connected between the third geothermal water pump 313 and the third-stage heat exchanger 22, solid particles in the geothermal water are removed, impurities in the geothermal water are reduced, damage to the third-stage heat exchanger 22 is reduced, and the first-stage heat exchanger 20, the second-stage heat exchanger 21 and the third-stage heat exchanger 22 are protected.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a geothermal energy cascade utilization circulating device which characterized in that includes:
a geothermal well comprising a production well (10) and a recharge well (11);
the heat exchange unit is arranged between the production well (10) and the recharging well (11), and comprises a primary heat exchanger (20), a secondary heat exchanger (21), a tertiary heat exchanger (22) and a quaternary heat exchanger (23) which are sequentially connected through pipelines, wherein the drainage end of the quaternary heat exchanger (23) is connected with the recharging well (11) through a pipeline;
the heat energy utilization unit is arranged on the heat exchange unit;
the geothermal energy collection unit comprises a water pumping pipe assembly (30) and a geothermal water pump group (31), wherein the water pumping pipe assembly (30) is arranged in a production well (10), the water outlet end of the water pumping pipe assembly (30) is connected with the water pumping end of the geothermal water pump group (31), and the water discharging end of the geothermal water pump group (31) is connected with the water inlet ends of the primary heat exchanger (20), the secondary heat exchanger (21) and the tertiary heat exchanger (22) through pipelines respectively;
the water suction pipe assembly (30) comprises a first water suction pipe (301), a second water suction pipe (302) and a third water suction pipe (303), the second water suction pipe (302) is sleeved on the first water suction pipe (301), the third water suction pipe (303) is sleeved on the second water suction pipe (302), the upper ends of the second water suction pipe (302) and the third water suction pipe (303) are sealed, and the geothermal water pump group (31) comprises a first geothermal water suction pump (311), a second geothermal water suction pump (312) and a third geothermal water suction pump (313);
the lower extreme of first drinking-water pipe (301), second drinking-water pipe (302) and third drinking-water pipe (303) all extends to in the geothermal water in production well (10), the upper end of first drinking-water pipe (301) is connected with first inlet tube (304), the one end that first drinking-water pipe (301) was kept away from to first inlet tube (304) is connected with the pumping end of first geothermal water pump (311), the top outside of second drinking-water pipe (302) is connected with second inlet tube (305), the one end that second drinking-water pipe (302) was kept away from to second inlet tube (305) is connected with the pumping end of second geothermal water pump (312), the top outside of third drinking-water pipe (303) is connected with third inlet tube (306), the one end that third drinking-water pipe (306) was kept away from third drinking-water pipe (303) is connected with the pumping end of third geothermal water pump (313).
2. The geothermal energy cascade utilization device according to claim 1, wherein: the drainage end of the first geothermal water pump (311) is connected with the primary heat exchanger (20) through a pipeline, the drainage end of the second geothermal water pump (312) is connected with the secondary heat exchanger (21) through a pipeline, and the drainage end of the third geothermal water pump (313) is connected with the tertiary heat exchanger (22) through a pipeline.
3. The geothermal energy cascade utilization device according to claim 2, wherein: a first rotational flow sand remover (40) is connected between the first geothermal water pump (311) and the primary heat exchanger (20).
4. The geothermal energy cascade utilization device according to claim 2, wherein: a second rotational flow sand remover (41) is connected between the second geothermal water suction pump (312) and the secondary heat exchanger (21).
5. The geothermal energy cascade utilization device according to claim 2, wherein: a third rotational flow sand remover (42) is connected between the third geothermal water pump (313) and the three-stage heat exchanger (22).
6. The geothermal energy cascade utilization device according to claim 1, wherein: the heat energy utilization unit comprises primary heat supply equipment (50), secondary heat supply equipment (51), tertiary heat supply equipment (52) and four-stage heat supply equipment (53), wherein the primary heat supply equipment (50) is connected with the primary heat exchanger (20) through a pipeline, the secondary heat supply equipment (51) is connected with the secondary heat exchanger (21) through a pipeline, the tertiary heat supply equipment (52) is connected with the three-stage heat exchanger (22) through a pipeline, and the four-stage heat supply equipment (53) is connected with the four-stage heat exchanger (23) through a pipeline.
7. The geothermal energy cascade utilization device according to claim 1, wherein: the primary heat exchanger (20), the secondary heat exchanger (21), the tertiary heat exchanger (22) and the quaternary heat exchanger (23) are all plate heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163788.9U CN220135760U (en) | 2023-05-15 | 2023-05-15 | Geothermal energy cascade utilization circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321163788.9U CN220135760U (en) | 2023-05-15 | 2023-05-15 | Geothermal energy cascade utilization circulating device |
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| Publication Number | Publication Date |
|---|---|
| CN220135760U true CN220135760U (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321163788.9U Active CN220135760U (en) | 2023-05-15 | 2023-05-15 | Geothermal energy cascade utilization circulating device |
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| Country | Link |
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| CN (1) | CN220135760U (en) |
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2023
- 2023-05-15 CN CN202321163788.9U patent/CN220135760U/en active Active
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