CN214333102U - Cascade utilization system for series connection of intermediate-deep geothermal water and heat pump - Google Patents
Cascade utilization system for series connection of intermediate-deep geothermal water and heat pump Download PDFInfo
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- CN214333102U CN214333102U CN202120497335.4U CN202120497335U CN214333102U CN 214333102 U CN214333102 U CN 214333102U CN 202120497335 U CN202120497335 U CN 202120497335U CN 214333102 U CN214333102 U CN 214333102U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a middle-deep geothermal water and heat pump series cascade utilization system, which comprises a middle-deep groundwater circulation subsystem, a primary plate type heat exchanger subsystem, a secondary plate type heat exchanger subsystem and a user heat supply subsystem; well deep groundwater circulation subsystem and a plate heat exchanger subsystem intercommunication, a plate heat exchanger subsystem and secondary plate heat exchanger subsystem intercommunication, secondary plate heat exchanger subsystem and well deep groundwater circulation subsystem intercommunication, a plate heat exchanger subsystem, secondary plate heat exchanger subsystem still communicate with user's heat supply subsystem respectively, the utility model discloses a well deep geothermal water establishes ties with the water source heat pump and comes the biggest utilization geothermal well water, has solved the problem that the user heated in winter.
Description
Technical Field
The utility model belongs to the technical field of geothermal energy development and utilization, especially, relate to a middle and deep layer geothermal water and heat pump series connection step utilize system.
Background
Geothermal resources are renewable clean energy, have the characteristics of cleanness, environmental protection, good stability, cyclic utilization and the like, are not interfered by external factors such as seasons, climate, day and night change and the like, and a ground source heat pump system can reduce the energy consumption of a building under the condition that the thermal comfort condition of the building is improved, thereby reducing the pollution to the atmospheric environment.
In recent years, with the development of socioeconomic performance in China and the increasing living standard of people, the improvement of thermal comfort conditions of buildings has become a more prominent requirement. Air conditioning has long quietly entered our lives as a means of improving the thermal comfort conditions of buildings. However, with the increasing popularization of air conditioning equipment, the energy consumption of buildings will increase rapidly, and the pollution to the atmospheric environment will become more and more serious.
Based on exist among the prior art not enough more than, the utility model discloses a deep geothermal water and heat pump series connection step utilize system through combining geothermal water and heat pump set to the building heating, both can reduce the empty power consumption that withers by a wide margin, reduces the use of high potential energy, but the heat of deep groundwater in the make full use of again reduces the temperature of the water of reining, realizes the step utilization of groundwater energy.
SUMMERY OF THE UTILITY MODEL
It is not enough to prior art, the utility model aims to provide a deep geothermal water and heat pump series connection step utilize system.
The utility model provides a following technical scheme:
a cascade utilization system of middle-deep geothermal water and a heat pump in series comprises a middle-deep groundwater circulation subsystem, a primary plate type heat exchanger subsystem, a secondary plate type heat exchanger subsystem and a user heat supply subsystem; the system comprises a middle-deep layer underground water circulation subsystem, a primary plate heat exchanger subsystem, a secondary plate heat exchanger subsystem and a user heat supply subsystem, wherein the middle-deep layer underground water circulation subsystem is communicated with the primary plate heat exchanger subsystem, the primary plate heat exchanger subsystem is communicated with the secondary plate heat exchanger subsystem, and the secondary plate heat exchanger subsystem is communicated with the middle-deep layer underground water circulation subsystem respectively.
Preferably, the middle-deep underground water circulation subsystem comprises a pumping well, a pumping pump, a cyclone desander, a recharging well and a geothermal well circulating water pipeline; the primary plate heat exchanger subsystem comprises a primary plate heat exchanger, a first hot side water inlet and outlet pipeline and a first cold side water inlet and outlet pipeline; the secondary plate type heat exchanger subsystem comprises a secondary plate type heat exchanger, a secondary water circulating water pump, a second hot side water inlet and outlet pipeline and a second cold side water inlet and outlet pipeline; the user heat supply subsystem comprises a water source heat pump unit, a heat supply circulating water pump, a heat user, a heat supply circulating water pipeline and a heat return circulating water pipeline.
Preferably, all through geothermal well circulating water pipeline intercommunication between the end of intaking of suction pump and the middle and deep layer groundwater in the suction well and between the play water end of suction pump and the end of intaking of whirl desander, the play water end of whirl desander and the inlet tube intercommunication of first hot side entry and exit water pipeline, the outlet pipe of first hot side entry and exit water pipeline and the inlet tube intercommunication of the hot side entry and exit water pipeline of second, the outlet pipe and the recharge well intercommunication of the hot side entry and exit water pipeline of second.
Preferably, the water outlet pipe of the first cold side inlet and outlet pipeline is communicated with the water supply end of the hot user through a heat supply circulating water pipeline, and the water return end of the hot user is communicated with the water inlet pipe of the first cold side inlet and outlet pipeline through a heat return circulating water pipeline.
Preferably, the outlet pipe of the second cold side inlet and outlet pipeline is communicated with the input end of the evaporator of the water source heat pump unit, the output end of the condenser of the water source heat pump unit is communicated with the water supply end of the hot user through a heat supply circulating water pipeline, the return water end of the hot user is communicated with the input end of the condenser through a heat return circulating water pipeline, and the output end of the evaporator is communicated with the inlet pipe of the second cold side inlet and outlet pipeline.
Preferably, a whole-course comprehensive water treatment device is further arranged at the position, communicated with the water inlet pipe of the first hot side water inlet and outlet pipeline, of the cyclone desander, the input end of the whole-course comprehensive water treatment device is communicated with the water outlet end of the cyclone desander, and the output end of the whole-course comprehensive water treatment device is communicated with the water inlet pipe of the first hot side water inlet and outlet pipeline.
Preferably, the backheating circulating water pipeline is provided with a heat supply circulating water pump at the communication position of the water inlet pipe of the first cold side inlet and outlet pipeline and the heat user.
Preferably, a secondary water circulating water pump is arranged at the communication position of the output end of the evaporator and the water inlet pipe of the second cold side inlet and outlet pipeline.
Preferably, the water source heat pump unit comprises an evaporator, a condenser and a compressor, and the water source heat pump units are connected in parallel.
Preferably, a plurality of secondary water circulating water pumps are arranged and connected in parallel; the heat supply circulating water pumps are connected in parallel.
Preferably, a straight-through type filter is further arranged between the heat supply circulating water pump and the water return end of the heat user in the heat return circulating water pipeline.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a deep geothermal water and heat pump series connection step utilize system makes deep geothermal water flow through one-level plate heat exchanger through the suction pump, can make the energy direct transfer of deep geothermal water in the high temperature give hot user, realizes heating to hot user end.
(2) The utility model relates to a deep geothermal water and heat pump series connection step utilize system, the deep hot water in the middle temperature after the one-level plate heat exchanger heat transfer, the secondary water that flows through second grade plate heat exchanger heating heat pump set evaporimeter once more, the temperature further reduces, gets into the recharge well at last in, has realized the energy step utilization of geothermal water temperature.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flow chart of the system of the present invention.
Fig. 2 is a flow chart of the middle-deep groundwater circulation subsystem of the present invention.
Fig. 3 is a flow chart of the user heating subsystem of the present invention.
In the figure: 1. pumping a water well; 2. recharging the well; 3. a water pump; 4. a cyclone desander; 5. a geothermal well circulating water pipeline; 6. a primary plate heat exchanger; 7. a first hot side inlet and outlet conduit; 71. a first cold side inlet and outlet conduit; 8. a secondary plate heat exchanger; 9. a secondary water circulating water pump; 10. a second hot side inlet and outlet conduit; 100. a second cold side inlet and outlet pipe; 11. a water source heat pump unit; 12. a heat supply circulating water pump; 13. a hot user; 14. a heat supply circulating water pipeline; 141. a regenerative circulating water pipeline; 15. a whole-course comprehensive water treatment device; 16. a straight-through filter.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Referring to fig. 1-3, a cascade utilization system of middle and deep geothermal water and heat pump in series includes a middle and deep groundwater circulation subsystem, a primary plate heat exchanger subsystem, a secondary plate heat exchanger subsystem and a user heating subsystem; the middle-deep underground water circulation subsystem is communicated with the primary plate heat exchanger subsystem, the primary plate heat exchanger subsystem is communicated with the secondary plate heat exchanger subsystem, the secondary plate heat exchanger subsystem is communicated with the middle-deep underground water circulation subsystem, the primary plate heat exchanger subsystem and the secondary plate heat exchanger subsystem are also respectively communicated with a user heat supply subsystem, and the middle-deep underground water circulation subsystem comprises a water pumping well 1, a water pumping pump 3, a cyclone sand remover 4, a recharge well 2 and a geothermal well circulating water pipeline 5; the primary plate heat exchanger subsystem comprises a primary plate heat exchanger 6, a first hot side inlet and outlet pipeline 7 and a first cold side inlet and outlet pipeline 71; the secondary plate type heat exchanger subsystem comprises a secondary plate type heat exchanger 8, a secondary water circulating pump 9, a second hot side inlet and outlet pipeline 10 and a second cold side inlet and outlet pipeline 100; the user heat supply subsystem comprises a water source heat pump unit 11, a heat supply circulating water pump 12, a heat user 13, a heat supply circulating water pipeline 14 and a heat return circulating water pipeline 141.
All communicate through geothermal well circulating water pipeline 5 between the end of intaking of suction pump 3 and the middle and deep layer groundwater in the pumped well 1 and between the play water end of suction pump 3 and the intake end of whirl desander 4, the play water end of whirl desander 4 and the inlet tube intercommunication of first hot side inlet and outlet pipe way 7, the outlet pipe of first hot side inlet and outlet pipe way 7 and the inlet tube intercommunication of the hot side inlet and outlet pipe way 10 of second, the outlet pipe and the recharge well 2 intercommunication of the hot side inlet and outlet pipe way 10 of second. The middle-deep underground water circulation subsystem is mainly characterized in that geothermal water at about 70 ℃ is sent into a cyclone desander 4 through a water suction pump 3 in a water suction well 1 to remove impurities, then the geothermal water enters a first-stage plate heat exchanger 6 to exchange heat, the cooled geothermal water at about 40 ℃ enters a second-stage plate heat exchanger 8 to exchange heat through a pipeline, the temperature of the geothermal water is further reduced, the heat of the geothermal water is fully utilized, the cooled geothermal water at about 25 ℃ enters a recharge well 2, and closed-loop circulation of taking heat and not taking water is realized.
The water outlet pipe of the first cold side inlet and outlet pipeline 71 is communicated with the water supply end of the hot user 13 through the heat supply circulating water pipeline 14, and the water return end of the hot user 13 is communicated with the water inlet pipe of the first cold side inlet and outlet pipeline 71 through the heat return circulating water pipeline 141. The energy of high-temperature middle-deep geothermal water can be indirectly transmitted to a heat user 13 through heat exchange in the primary plate heat exchanger 6, so that heating of a heat user end is realized, and a user heating subsystem is characterized in that in the heating working condition in winter, low-temperature water in the heat user 13 respectively enters a condenser in the water source heat pump unit 11 and the primary plate heat exchanger 6 through the heat supply circulating water pump 12 to be heated to meet the heat utilization temperature and then enters the heat user 13 together; and the heat supply network circulating water after heat exchange enters a heat supply circulating water pump 12 to complete water circulation of heating and heat supply.
The outlet pipe of the second cold side inlet and outlet water pipe 100 is communicated with the input end of the evaporator of the water source heat pump unit 11, the output end of the condenser of the water source heat pump unit 11 is communicated with the water supply end of the heat consumer 13 through the heat supply circulating water pipe 14, the water return end of the heat consumer 13 is communicated with the input end of the condenser through the heat return circulating water pipe 141, and the output end of the evaporator is communicated with the inlet pipe of the second cold side inlet and outlet water pipe 100. The method mainly comprises the steps of heating secondary water with the temperature of about 5 ℃ from an evaporator of a water source heat pump unit 11 through a secondary plate heat exchanger 8, feeding the secondary water into the evaporator of the water source heat pump unit 11 through a secondary water circulating water pump 9 after heat absorption and temperature rise reach about 15 ℃, supplying working media of a water source heat pump unit 12, and completing water circulation on the evaporator side of the water source heat pump unit 11.
The cyclone desander 4 is also provided with a whole-course comprehensive water treatment device 15 at the position communicated with the water inlet pipe of the first hot side inlet and outlet pipeline 7, the input end of the whole-course comprehensive water treatment device 15 is communicated with the water outlet end of the cyclone desander 4, and the output end of the whole-course comprehensive water treatment device 15 is communicated with the water inlet pipe of the first hot side inlet and outlet pipeline 7. The whole-course comprehensive water treatment device 15 perfectly combines a radio frequency water treatment device and a yellow rust water filter according to the problems of scaling, corrosion, bacteria and algae, water quality deterioration and the like commonly existing in a water system, solves mutual interference among different spectrums by utilizing a differential rotation shielding and multi-point array combination technology in the field of aerospace, and utilizes a triple composite filtration system of mechanical wall baffle type filtration, multistage active iron filter membrane impurity implantation and corona field electrostatic adsorption effect to perform ultra-clean filtration.
And a heat supply circulating water pump 12 is arranged at the position of the heat return circulating water pipeline 141, which is positioned at the communication position of the water inlet pipe of the first cold side inlet and outlet pipeline 71 and the heat user 13.
And a secondary water circulating water pump 9 is arranged at the communication position of the output end of the evaporator and the water inlet pipe of the second cold side inlet and outlet pipeline 100.
The water source heat pump unit 11 comprises an evaporator, a condenser and a compressor, and the water source heat pump units 11 are arranged in a plurality of parallel connection mode, and the water source heat pump units 11 are connected in parallel. The heat exchange rate is improved.
The secondary water circulating water pumps 9 are arranged in plurality, and the secondary water circulating water pumps 9 are connected in parallel; the number of the heat supply circulating water pumps 12 is multiple, and the heat supply circulating water pumps 12 are connected in parallel. The water circulation quantity is improved.
The back-heating circulating water pipe 141 is also provided with a straight-through type filter 16 between the heat-supply circulating water pump 12 and the water return end of the heat consumer 13. The circulating water is filtered to prevent scaling and the damage of impurities to the heat supply circulating water pump 12.
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 within the technical scope of the present invention, and the technical solution and the inventive concept of the present invention are equivalent to or changed according to the present invention, and all those are included in the scope of the present invention.
Claims (8)
1. A middle-deep geothermal water and heat pump cascade utilization system is characterized in that: the system comprises a middle-deep underground water circulation subsystem, a primary plate type heat exchanger subsystem, a secondary plate type heat exchanger subsystem and a user heat supply subsystem; the system comprises a middle-deep layer underground water circulation subsystem, a primary plate heat exchanger subsystem, a secondary plate heat exchanger subsystem and a user heat supply subsystem, wherein the middle-deep layer underground water circulation subsystem is communicated with the primary plate heat exchanger subsystem, the primary plate heat exchanger subsystem is communicated with the secondary plate heat exchanger subsystem, and the secondary plate heat exchanger subsystem is communicated with the middle-deep layer underground water circulation subsystem respectively.
2. The system for cascade utilization of middle-deep-layer geothermal water and a heat pump in series connection according to claim 1, wherein the middle-deep-layer groundwater circulation subsystem comprises a pumping well (1), a pumping pump (3), a cyclone sand remover (4), a recharging well (2) and a geothermal well circulating water pipeline (5); the primary plate heat exchanger subsystem comprises a primary plate heat exchanger (6), a first hot side inlet and outlet pipeline (7) and a first cold side inlet and outlet pipeline (71); the secondary plate type heat exchanger subsystem comprises a secondary plate type heat exchanger (8), a secondary water circulating pump (9), a second hot side inlet and outlet pipeline (10) and a second cold side inlet and outlet pipeline (100); the user heat supply subsystem comprises a water source heat pump unit (11), a heat supply circulating water pump (12), a heat user (13), a heat supply circulating water pipeline (14) and a heat return circulating water pipeline (141).
3. The system for serially connecting the middle-deep geothermal water and the heat pump with the cascade as recited in claim 2, wherein the water inlet end of the water pump (3) is communicated with the middle-deep groundwater in the water pumping well (1) and the water outlet end of the water pump (3) is communicated with the water inlet end of the cyclone sand remover (4) through a geothermal well circulating water pipeline (5), the water outlet end of the cyclone sand remover (4) is communicated with the water inlet pipe of the first hot side inlet and outlet pipeline (7), the water outlet pipe of the first hot side inlet and outlet pipeline (7) is communicated with the water inlet pipe of the second hot side inlet and outlet pipeline (10), and the water outlet pipe of the second hot side inlet and outlet pipeline (10) is communicated with the recharge well (2).
4. The system of claim 2, wherein the outlet pipe of the first cold side inlet and outlet pipeline (71) is communicated with the water supply end of the hot user (13) through the heating circulating water pipeline (14), and the water return end of the hot user (13) is communicated with the inlet pipe of the first cold side inlet and outlet pipeline (71) through the heat returning circulating water pipeline (141).
5. The system of claim 2, wherein the outlet pipe of the second cold side inlet and outlet pipe (100) is communicated with the input end of the evaporator of the water source heat pump unit (11), the output end of the condenser of the water source heat pump unit (11) is communicated with the water supply end of the heat consumer (13) through the heat supply circulating water pipe (14), the water return end of the heat consumer (13) is communicated with the input end of the condenser through the heat return circulating water pipe (141), and the output end of the evaporator is communicated with the inlet pipe of the second cold side inlet and outlet pipe (100).
6. The system for serially connecting the geothermal water and the heat pump with the cascade as recited in claim 2, wherein a whole-course comprehensive water treatment device (15) is further disposed at a position where the rotational flow sand remover (4) is communicated with the water inlet pipe of the first heat side water inlet and outlet pipeline (7), an input end of the whole-course comprehensive water treatment device (15) is communicated with a water outlet end of the rotational flow sand remover (4), and an output end of the whole-course comprehensive water treatment device (15) is communicated with the water inlet pipe of the first heat side water inlet and outlet pipeline (7).
7. The system of claim 2, wherein the regenerative circulating water pipe (141) is provided with a heat supply circulating water pump (12) at the position where the inlet pipe of the first cold side inlet and outlet pipe (71) is communicated with the heat consumer (13).
8. The system of claim 5, wherein a secondary water circulating pump (9) is arranged at the connection between the output end of the evaporator and the water inlet pipe of the second cold side inlet and outlet pipeline (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497335.4U CN214333102U (en) | 2021-03-09 | 2021-03-09 | Cascade utilization system for series connection of intermediate-deep geothermal water and heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497335.4U CN214333102U (en) | 2021-03-09 | 2021-03-09 | Cascade utilization system for series connection of intermediate-deep geothermal water and heat pump |
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| Publication Number | Publication Date |
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| CN214333102U true CN214333102U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120497335.4U Expired - Fee Related CN214333102U (en) | 2021-03-09 | 2021-03-09 | Cascade utilization system for series connection of intermediate-deep geothermal water and heat pump |
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| CN (1) | CN214333102U (en) |
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2021
- 2021-03-09 CN CN202120497335.4U patent/CN214333102U/en not_active Expired - Fee Related
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Granted publication date: 20211001 |