CN213810816U - Capillary heating system based on middle-deep geothermal heat - Google Patents
Capillary heating system based on middle-deep geothermal heat Download PDFInfo
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- CN213810816U CN213810816U CN202021585239.7U CN202021585239U CN213810816U CN 213810816 U CN213810816 U CN 213810816U CN 202021585239 U CN202021585239 U CN 202021585239U CN 213810816 U CN213810816 U CN 213810816U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
The utility model relates to a capillary heating system based on middle and deep geothermal heat, including heat pump set, ground source buried pipe and capillary end, the heat pump set includes compressor, condenser, choke valve and evaporimeter, the primary side of compressor, condenser, choke valve and evaporimeter connect gradually and form first circulation circuit; the buried depth of the ground source buried pipe is 2-3 km, and a water outlet and a water inlet of the ground source buried pipe are correspondingly connected with two ports of the secondary side of the evaporator to form a second circulation loop; two ports at the tail end of the capillary tube are correspondingly connected with two ports at the secondary side of the condenser to form a third circulation loop. The water supply and return device has the advantages of simple structure, stability, reliability, high working efficiency, large temperature difference of water supply and return and strong practicability, and can effectively reduce equipment investment and operation cost.
Description
Technical Field
The utility model relates to an air conditioning system, concretely relates to capillary heating system based on middle and deep geothermal.
Background
In the field of air conditioners, the conventional ground source heat pump-based air conditioning system mainly adopts a coil type tail end of a fan, most of ground source side of the air conditioning system adopts shallow geothermal heat, and the following problems exist in practical application: because of its supply return water difference in temperature is less, need set up great circulation no discharge and pipe diameter, correspondingly also need adopt great circulating pump, equipment investment is great, and the running cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a capillary heating system based on middle-deep geothermal, it has simple structure, reliable and stable, work efficiency is high, supply the return water difference in temperature big, the practicality strong advantage, can effectively reduce equipment investment and running cost.
In order to solve the above problems in the prior art, the utility model provides a capillary heating system based on middle and deep geothermal heat, which comprises a heat pump unit, a ground source buried pipe and a capillary end, wherein the heat pump unit comprises a compressor, a condenser, a throttle valve and an evaporator, and the primary sides of the compressor, the condenser, the throttle valve and the evaporator are sequentially connected to form a first circulation loop; the buried depth of the ground source buried pipe is 2-3 km, and a water outlet and a water inlet of the ground source buried pipe are correspondingly connected with two ports of the secondary side of the evaporator to form a second circulation loop; and two ports at the tail end of the capillary tube are correspondingly connected with two ports on the secondary side of the condenser to form a third circulation loop.
Further, the utility model relates to a capillary heating system based on deep geothermal, wherein, the secondary side water inlet and the delivery port of evaporimeter correspond and are equipped with first solenoid electric valve and second solenoid electric valve, the secondary side water inlet and the delivery port of condenser correspond and are equipped with third solenoid electric valve and fourth solenoid electric valve; a first bypass pipe is arranged between the inlet end of the first electromagnetic control valve and the outlet end of the fourth electromagnetic control valve, a fifth electromagnetic control valve is arranged on the first bypass pipe, a second bypass pipe is arranged between the outlet end of the second electromagnetic control valve and the inlet end of the third electromagnetic control valve, and a sixth electromagnetic control valve is arranged on the second bypass pipe.
Further, the utility model relates to a capillary heating system based on middle and deep geothermal, wherein, the ground source buried pipe includes inner tube and outer tube, the lower port of inner tube communicates with the inner chamber of outer tube; the water outlet of the ground source buried pipe is the upper end opening of the inner pipe, and the water inlet of the ground source buried pipe is the upper end of the gap between the inner pipe and the outer pipe.
Further, the utility model relates to a capillary heating system based on deep geothermal, wherein, working medium in the first circulation circuit is the refrigerant, working medium in second circulation circuit and the third circulation circuit is water.
Further, the utility model relates to a capillary heating system based on middle deep geothermal heat, wherein, the working medium flow direction of condenser primary side and secondary side is opposite; and working media on the primary side and the secondary side of the evaporator have opposite flow directions.
Further, the utility model relates to a capillary heating system based on deep geothermal, wherein, be equipped with the circulating pump on second circulation circuit and the third circulation circuit respectively.
The utility model relates to a capillary heating system based on middle and deep geothermal has following advantage compared with the prior art: the utility model has the advantages that the heat pump unit is provided with the compressor, the condenser, the throttle valve and the evaporator by arranging the heat pump unit, the ground source buried pipe and the tail end of the capillary pipe, and the compressor, the primary side of the condenser, the throttle valve and the primary side of the evaporator are sequentially connected to form a first circulation loop; the buried depth of the ground source buried pipe is 2-3 km, and a water outlet and a water inlet of the ground source buried pipe are correspondingly connected with two ports of the secondary side of the evaporator to form a second circulation loop; and two ports at the tail end of the capillary tube are correspondingly connected with two ports on the secondary side of the condenser to form a third circulation loop. Therefore, the capillary tube heating system based on the intermediate-deep geothermal energy is simple in structure, stable, reliable, high in working efficiency, large in temperature difference of supply and return water and high in practicability. The utility model discloses a set up the buried depth and be 2 ~ 3 km's ground source buried pipe, adopt middle and deep geothermal heat as the heat source promptly to combine the capillary as the end, can effectively improve and supply the return water difference in temperature, supply the increase of return water difference in temperature to reduce circulating water flow and supply the pipe diameter of return water pipeline, correspondingly can adopt the circulating pump of less pump number, effectively reduced equipment investment and running cost, and can effectively improve heat pump set's work efficiency.
The capillary heating system based on intermediate geothermal heat will be described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of the capillary heating system based on the intermediate geothermal heat.
Detailed Description
It should be noted that, in the present invention, the terms of upper, lower, left, right, front, rear and the like are only described according to the accompanying drawings, so as to facilitate understanding, and are not intended to limit the technical solution and the scope of the present invention.
As shown in fig. 1, the present invention relates to a capillary heating system based on middle-deep geothermal heat, which comprises a heat pump unit 1, a ground source buried pipe 2 and a capillary end 3. The heat pump unit 1 is provided with a compressor 11, a condenser 12, a throttle valve 13, and an evaporator 14, and the compressor 11, a primary side of the condenser 12, the throttle valve 13, and a primary side of the evaporator 14 are connected in sequence to form a first circulation circuit. The buried depth of the ground source buried pipe 2 is 2-3 km, and a water outlet and a water inlet of the ground source buried pipe 2 are correspondingly connected with two ports on the secondary side of the evaporator 14 to form a second circulation loop. Two ports of the capillary tube end 3 are correspondingly connected with two ports of the secondary side of the condenser 12 to form a third circulation loop.
The capillary tube heating system based on the intermediate-deep geothermal energy is simple in structure, stable, reliable, high in working efficiency, large in temperature difference of supply and return water and high in practicability. The utility model discloses a set up the buried depth and be 2 ~ 3 km's ground source buried pipe, adopt middle and deep geothermal heat as the heat source promptly to combine the capillary as the end, can effectively improve and supply the return water difference in temperature, supply the increase of return water difference in temperature to reduce circulating water flow and supply the pipe diameter of return water pipeline, correspondingly can adopt the circulating pump of less pump number, effectively reduced equipment investment and running cost, and can effectively improve heat pump set's work efficiency. In practical application, the working medium in the first circulation loop is a refrigerant, and the working medium in the second circulation loop and the third circulation loop is water; in order to ensure the normal operation of each circulation loop, a circulation pump 6 is respectively arranged on the third circulation loop of the second circulation loop. In addition, it should be noted that the equipment investment mainly refers to the investment of pipelines and circulating pumps in the system.
As an optimized scheme, in order to fully utilize geothermal energy and reduce the operation cost, in the present embodiment, a first electromagnetic control valve 15 and a second electromagnetic control valve 16 are correspondingly disposed at a secondary-side water inlet and a secondary-side water outlet of the evaporator 14, and a third electromagnetic control valve 17 and a fourth electromagnetic control valve 18 are correspondingly disposed at a secondary-side water inlet and a secondary-side water outlet of the condenser 12. And a first bypass pipe 4 is provided between an inlet end of the first electromagnetic control valve 15 and an outlet end of the fourth electromagnetic control valve 17, a fifth electromagnetic control valve 41 is provided on the first bypass pipe 4, a second bypass pipe 5 is provided between an outlet end of the second electromagnetic control valve 16 and an inlet end of the third electromagnetic control valve 17, and a sixth electromagnetic control valve 51 is provided on the second bypass pipe 5. Because the temperature of the geothermal energy in the middle and deep layers is relatively high, and the heat supply temperature of the tail end 3 of the capillary tube is only about 32 ℃, the structure is arranged at the earlier stage of putting the system into use, the heat pump unit 1 can be stopped, the ground source buried tube 2 directly supplies heat to the tail end 3 of the capillary tube, namely, the first electromagnetic control valve 15, the second electromagnetic control valve 16, the third electromagnetic control valve 17 and the fourth electromagnetic control valve 18 are closed through the control device, and the fifth electromagnetic control valve 41 and the sixth electromagnetic control valve 51 are opened, so that the ground source buried tube 2 and the tail end 3 of the capillary tube directly form a loop through the first bypass tube 4 and the second bypass tube 5. When the temperature in the ground source buried pipe 2 is reduced to a certain temperature, the heat pump unit 1 is put into operation, and at this time, the first electromagnetic control valve 15, the second electromagnetic control valve 16, the third electromagnetic control valve 17 and the fourth electromagnetic control valve 18 are opened, and the fifth electromagnetic control valve 41 and the sixth electromagnetic control valve 51 are closed. The structure and the operation mode can effectively reduce energy consumption and operation cost.
As a specific embodiment, the ground source buried pipe 2 specifically comprises an inner pipe 21 and an outer pipe 22, wherein the lower port of the inner pipe 21 is communicated with the inner cavity of the outer pipe 22. The water outlet of the ground source buried pipe 2 is the upper end of the inner pipe 21, and the water inlet of the ground source buried pipe 2 is the upper end of the gap between the inner pipe 21 and the outer pipe 22. Meanwhile, in the present embodiment, both the condenser 12 and the evaporator 14 adopt a counter-flow heat exchange manner, that is, the flow directions of the working mediums on the primary side and the secondary side of the condenser 12 are opposite, and the flow directions of the working mediums on the primary side and the secondary side of the evaporator 14 are opposite, thereby effectively improving the heat exchange efficiency and the heat exchange effect.
The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the present invention as defined by the claims.
Claims (6)
1. A capillary heating system based on middle-deep geothermal heat is characterized by comprising a heat pump unit (1), a ground source buried pipe (2) and a capillary tail end (3), wherein the heat pump unit (1) comprises a compressor (11), a condenser (12), a throttle valve (13) and an evaporator (14), and the compressor (11), the primary side of the condenser (12), the throttle valve (13) and the primary side of the evaporator (14) are sequentially connected to form a first circulation loop; the buried depth of the ground source buried pipe (2) is 2-3 km, and a water outlet and a water inlet of the ground source buried pipe (2) are correspondingly connected with two ports of the secondary side of the evaporator (14) to form a second circulation loop; two ports of the tail end (3) of the capillary tube are correspondingly connected with two ports of the secondary side of the condenser (12) to form a third circulation loop.
2. The capillary heating system based on the geothermal at the middle and deep layers is characterized in that a first electromagnetic control valve (15) and a second electromagnetic control valve (16) are correspondingly arranged at a secondary side water inlet and a secondary side water outlet of the evaporator (14), and a third electromagnetic control valve (17) and a fourth electromagnetic control valve (18) are correspondingly arranged at a secondary side water inlet and a secondary side water outlet of the condenser (12); a first bypass pipe (4) is arranged between the inlet end of the first electromagnetic control valve (15) and the outlet end of the fourth electromagnetic control valve (18), a fifth electromagnetic control valve (41) is arranged on the first bypass pipe (4), a second bypass pipe (5) is arranged between the outlet end of the second electromagnetic control valve (16) and the inlet end of the third electromagnetic control valve (17), and a sixth electromagnetic control valve (51) is arranged on the second bypass pipe (5).
3. The capillary heating system based on the intermediate geothermal heat is characterized in that the ground source buried pipe (2) comprises an inner pipe (21) and an outer pipe (22), wherein the lower end of the inner pipe (21) is communicated with the inner cavity of the outer pipe (22); the water outlet of the ground source buried pipe (2) is the upper end opening of the inner pipe (21), and the water inlet of the ground source buried pipe (2) is the upper end of the gap between the inner pipe (21) and the outer pipe (22).
4. The capillary heating system based on the intermediate-deep geothermal energy is characterized in that the working medium in the first circulation loop is a refrigerant, and the working medium in the second circulation loop and the third circulation loop is water.
5. A capillary heating system based on geothermal heat in a medium or deep layer according to claim 4, characterized in that the working fluids in the primary side and the secondary side of the condenser (12) are in opposite directions; the working medium flow directions of the primary side and the secondary side of the evaporator (14) are opposite.
6. A capillary heating system based on geothermal heat in a medium or deep layer according to claim 5, characterized in that the second and third circulation loops are provided with circulation pumps (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585239.7U CN213810816U (en) | 2020-08-03 | 2020-08-03 | Capillary heating system based on middle-deep geothermal heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021585239.7U CN213810816U (en) | 2020-08-03 | 2020-08-03 | Capillary heating system based on middle-deep geothermal heat |
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| CN213810816U true CN213810816U (en) | 2021-07-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819510A (en) * | 2021-11-23 | 2021-12-21 | 浙江陆特能源科技股份有限公司 | Zero-emission heating system with middle-deep geothermal energy coupled with solar energy |
| CN113883735A (en) * | 2021-09-29 | 2022-01-04 | 万江新能源集团有限公司 | Deep well heat exchange heat pump system utilizing working medium phase change heat absorption |
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2020
- 2020-08-03 CN CN202021585239.7U patent/CN213810816U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883735A (en) * | 2021-09-29 | 2022-01-04 | 万江新能源集团有限公司 | Deep well heat exchange heat pump system utilizing working medium phase change heat absorption |
| CN113819510A (en) * | 2021-11-23 | 2021-12-21 | 浙江陆特能源科技股份有限公司 | Zero-emission heating system with middle-deep geothermal energy coupled with solar energy |
| CN113819510B (en) * | 2021-11-23 | 2022-04-15 | 中国地质科学院水文地质环境地质研究所 | Zero-emission heating system with middle-deep geothermal energy coupled with solar energy |
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