CN111594913A - Clean heating system of middle-deep layer geothermal energy interference-free - Google Patents
Clean heating system of middle-deep layer geothermal energy interference-free Download PDFInfo
- Publication number
- CN111594913A CN111594913A CN202010480029.XA CN202010480029A CN111594913A CN 111594913 A CN111594913 A CN 111594913A CN 202010480029 A CN202010480029 A CN 202010480029A CN 111594913 A CN111594913 A CN 111594913A
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- Prior art keywords
- filter screen
- heating system
- interference
- assembly
- geothermal energy
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
Abstract
The invention discloses an interference-free clean heating system for middle-deep geothermal energy, which comprises a geothermal source supply side assembly, a middle conversion assembly and a user side assembly; the geothermal source supply side assembly comprises a heat exchanger and a geothermal pump for driving geothermal source supply side media to circularly flow, the intermediate conversion assembly comprises an evaporator, a compressor, a condenser and a flow valve which are sequentially communicated, and the user side assembly comprises a radiator and a driving pump for driving user side media to circularly flow; the medium at the geothermal source supply side supplies heat to the middle conversion assembly through the evaporator, the middle conversion assembly supplies heat to the user side through the condenser, and medium liquid filtering assemblies are arranged on communicating pipes in the geothermal source supply side assembly, the middle conversion assembly and/or the user side assembly; the heat exchange efficiency of the system can be effectively improved, the heat supply efficiency of the system is higher, the operation is more stable, and long-term, stable and efficient heat supply to users is guaranteed.
Description
Technical Field
The invention relates to the field of geothermal energy collection, in particular to an interference-free clean heating system for middle-deep geothermal energy.
Background
A method for utilizing geothermal energy of a middle-deep layer mainly comprises the steps of arranging a heat exchanger below a still water level or a dry hot rock land without an underground water-bearing layer, and extracting heat of geothermal water of the middle-deep layer by utilizing a heat conduction mode; the medium-deep-layer geothermal energy non-interference clean heat supply system is a heat exchange system which can only exchange medium-deep-layer underground heat energy on the premise of not extracting medium-deep-layer underground hot water resources and reasonably develops the medium-deep-layer geothermal energy for building heat supply;
the heat exchanger in the middle-deep geothermal well commonly used in the system is generally a double-sleeve heat exchanger, and circulating media absorb heat of surrounding high-temperature rock mass in the process of flowing downwards from a gap between an outer sleeve and an inner sleeve, so that the temperature is increased, and the circulating media flow out of the heat exchanger from the inner sleeve upwards at the bottom. After flowing out of the heat exchanger, the circulating medium enters the evaporator side of the high-temperature heat source type water source heat pump main unit through the circulating pump, releases heat, and returns to the heat exchanger in the middle-deep geothermal well again after being cooled; meanwhile, the system transfers the terrestrial heat to the user through the medium liquid in the heat exchange circulation passage between the heat source and the user, and meanwhile, the medium liquid carries the heat to dissipate the heat to the outside; in the whole system, the medium liquid can generate impurities in long-term reciprocating circulation flow, and the existence of the impurities affects the heat conduction performance of the medium liquid, so that the heat exchange efficiency of the whole system is greatly affected.
Disclosure of Invention
In view of the above, the present invention aims to overcome the defects in the prior art, and provide an interference-free clean heating system for middle-deep geothermal energy, which can effectively improve the heat exchange efficiency of the system, realize higher heating efficiency of the system and more stable operation, and ensure long-term, stable and efficient heating for users.
The invention relates to an interference-free clean heating system for middle-deep geothermal energy, which comprises a geothermal source supply side assembly, a middle conversion assembly and a user side assembly; the geothermal source supply side assembly comprises a heat exchanger and a geothermal pump for driving geothermal source supply side media to circularly flow, the intermediate conversion assembly comprises an evaporator, a compressor, a condenser and a flow valve which are sequentially communicated, and the user side assembly comprises a radiator and a driving pump for driving user side media to circularly flow; the medium on the supply side of the geothermal source supplies heat to the intermediate conversion assembly through the evaporator, the intermediate conversion assembly supplies heat to the user side through the condenser, and the communicating pipes in the supply side assembly of the geothermal source, the intermediate conversion assembly and/or the user side assembly are all provided with medium liquid filtering assemblies.
Further, the medium liquid filtering assembly comprises a filter screen fixed in the communicating pipe and a driver used for driving the middle of the filter screen to swing back and forth.
Further, still include the fixed cover of filter screen, the filter screen edge is fixed in the fixed cover interior circle of filter screen, the fixed cover of filter screen with detachable mode fixed mounting in the intercommunication pipe.
Furthermore, the filter screen fixing sleeve comprises an outer sleeve and an inner sleeve sleeved on the outer sleeve at intervals, the rear end of the inner sleeve and the rear end of the outer sleeve are fixed in a sealing mode, and an impurity storage cavity is formed between the inner sleeve and the outer sleeve in the radial direction.
Furthermore, a plurality of liquid discharge holes are formed in the rear end of the impurity storage cavity.
Furthermore, the filter screen is in a circular arc shell shape after being opened.
Furthermore, the driver is an excitation coil fixedly sleeved outside the communicating pipe, a permanent magnet sheet is fixedly arranged in the middle of the filter screen, and the excitation coil drives the filter screen to swing back and forth in the middle of the filter screen through electromagnetic force by passing currents in different directions.
Furthermore, all be provided with the filter screen around the excitation coil, the filter screen that is located the rear end filters impurity size and is less than the filter screen of front end and filters impurity size.
Furthermore, the excitation coil is the multiunit, and the multiunit is along fixed the setting of communicating pipe length direction interval.
Further, still include the clamp, the clamp overcoat is in communicating pipe and the outer sleeve of chucking communicating pipe, realizes that the fixed cover of filter screen is fixed in the communicating pipe.
The invention has the beneficial effects that: according to the medium-depth layer geothermal energy non-interference clean heating system disclosed by the invention, the medium liquid filtering components for filtering corresponding medium liquids are arranged on the circulating loop pipelines of each part, so that the phenomenon that long-term newly-added impurities cause excessive influence on the heat conduction efficiency of the whole system is avoided when the system is ensured to normally operate, the heat exchange efficiency of the system is effectively improved, the system is higher in heating efficiency and more stable in operation, and long-term, stable and efficient heating of users is ensured.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a media-liquid filter assembly according to the present invention;
FIG. 3 is another schematic view of the liquid media filter assembly of the present invention.
Detailed Description
FIG. 1 is a schematic structural view of the present invention, FIG. 2 is a schematic structural view of a medium liquid filter assembly of the present invention, and FIG. 3 is another schematic structural view of the medium liquid filter assembly of the present invention, showing a medium-deep geothermal energy non-interference clean heating system of the present embodiment, which includes a geothermal energy supply side assembly, a middle conversion assembly and a user side assembly; the geothermal source supply side assembly comprises a heat exchanger 11 and a geothermal heat pump 12 for driving geothermal source supply side medium to circularly flow, the intermediate conversion assembly comprises an evaporator 13, a compressor 14, a condenser 15 and a flow valve 16 which are communicated in sequence, and the user side assembly comprises a radiator 17 and a driving pump 18 for driving user side medium to circularly flow; the medium at the geothermal source supply side supplies heat to the middle conversion assembly through the evaporator, the middle conversion assembly supplies heat to the user side through the condenser, and medium liquid filtering assemblies are arranged on communicating pipes in the geothermal source supply side assembly, the middle conversion assembly and/or the user side assembly; the system is a closed circulation system, a metal double-pipe heat exchanger 11 is adopted on the special heat exchanger 11 side (heat source side), and geothermal energy stored in the rock with the depth of 2-3km underground and the temperature of 70-90 ℃ or even higher is extracted to be used as a low-temperature heat source of a medium-high temperature heat pump unit. The heat source side working process comprises the steps that before the system starts to operate, the heat source side is filled with heat exchange medium liquid, a heat source side circulating water pump is started, the heat exchange medium flows from top to bottom in the annular cavity of the double-pipe heat exchanger 11, heat exchange is carried out between the outer pipe wall of the double-pipe heat exchanger and surrounding high-temperature rock mass and between the outer pipe wall of the double-pipe heat exchanger and the heat exchange medium flowing upwards, and the temperature is gradually increased. After reaching the bottom, the heated heat exchange medium flows from bottom to top from the inner pipe, gradually radiates heat to the heat exchange medium in the annular cavity, the temperature of the heat exchange medium in the inner pipe is gradually reduced until the heat exchange medium flows out of the heat exchanger 11 and enters an evaporator of the medium-high temperature heat pump unit, and the circulation flow is repeated; and set up the filterable medium liquid filter assembly of corresponding medium liquid on each part circulation circuit pipeline, when guaranteeing system normal operating, avoid long-term newly-increased impurity to cause too big influence to whole system heat conduction efficiency, effectively improve the heat exchange efficiency of system, realize that system's heating efficiency is higher, and the operation is more stable, guarantees to heat supply to the user for a long time, stably and high-efficiently.
In this embodiment, the medium liquid filtering assembly includes a filter screen 21 fixed in the communicating pipe 20 and a driver 22 for driving the middle of the filter screen 21 to swing back and forth; the filter screen is made of soft materials, of course, the filter screen is installed in the communicating pipe 20 in a loose mode of the middle part, and the middle part of the filter screen is driven to swing back and forth through the driver 22, so that impurities adsorbed in the middle part of the filter screen can be moved to the edge to be accumulated, automatic cleaning and collection of the impurities are realized under the condition that normal operation of a closed system is not influenced, and long-term stable and efficient operation of the system is ensured; front indicates the direction of flow of the medium liquid, and vice versa.
In this embodiment, the filter device further comprises a filter screen fixing sleeve, wherein the edge of the filter screen is fixed in the inner circle of the filter screen fixing sleeve, and the filter screen fixing sleeve is detachably and fixedly arranged in the communicating pipe 20; the filter screen is convenient to install and fix through the filter screen fixing sleeve, and meanwhile, after the filter screen is operated for a certain period, the filter screen is convenient to detach and clean.
In this embodiment, the filter screen fixing sleeve comprises an outer sleeve 23 and an inner sleeve 24 which is sleeved on the outer sleeve 23 at intervals, the rear ends of the inner sleeve 24 and the outer sleeve 23 are fixed in a closed manner, and an impurity storage cavity 25 is formed between the inner sleeve 23 and the outer sleeve 23 in the radial direction; of course, the filter screen edge is fixed in the front end mouth edge of inner skleeve 24, as shown in the figure, store up the rear end in impurity chamber 25 and seted up a plurality of outage, through this setting of storing up impurity chamber 25, improve the collection efficiency of impurity, the impurity of terminal surface is not retrained before avoiding the filter screen, influences the flow efficiency of communicating pipe 20, and it is big to guarantee impurity collection volume, prolongs clearance cycle to clearance after easily dismantling.
In this embodiment, the filter screen is the circular arc shell form after opening, when doing benefit to the filter screen amplitude of oscillation less, impurity does benefit to and slides to storing up in the impurity chamber 25.
In this embodiment, the driver 22 is an excitation coil 22 fixed on the communicating pipe 20, a permanent magnet sheet 26 is fixed in the middle of the filter screen, and the excitation coil 22 drives the filter screen to swing back and forth by electromagnetic force through passing currents in different directions; the excitation coil 22 produces the magnetic field of attracting and repelling permanent magnet piece 26 in proper order for the filter screen swing that is fixed with the permanent magnetism paster, permanent magnet piece 26 are fixed in the middle of the filter screen of arc shell form, excitation coil 22 intercommunication has current frequency conversion excitation power, through the alternating magnetic field that excitation coil 22 produced, makes the filter screen with the reciprocal vibrations of certain frequency, realizes that impurity effectively collects.
In this embodiment, the front end and the rear end of the excitation coil 22 are both provided with filter screens, the size of the impurities filtered by the filter screen at the rear end is smaller than that of the impurities filtered by the filter screen at the front end, the excitation coils 22 are provided in multiple groups, and the multiple groups are fixedly arranged at intervals along the length direction of the communicating pipe 20; further improving the filtering effect and efficiency.
In this embodiment, the filter screen fixing sleeve further comprises a hoop 27, the hoop is sleeved outside the communication pipe 20 and clamps the outer sleeve 23 in the communication pipe 20, so that the filter screen fixing sleeve is fixed in the communication pipe 20; the communicating pipe 20 is a hose, the outer sleeve 23 is embedded and then fixed and sealed with the inner wall of the hose through the clamp 27, and the communicating pipe is simple in structure and convenient to install.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a clean heating system of interference-free of middle and deep geothermal energy which characterized in that: the system comprises a geothermal source supply side assembly, a middle conversion assembly and a user side assembly; the geothermal source supply side assembly comprises a heat exchanger and a geothermal pump for driving geothermal source supply side media to circularly flow, the intermediate conversion assembly comprises an evaporator, a compressor, a condenser and a flow valve which are sequentially communicated, and the user side assembly comprises a radiator and a driving pump for driving user side media to circularly flow; the medium on the supply side of the geothermal source supplies heat to the intermediate conversion assembly through the evaporator, the intermediate conversion assembly supplies heat to the user side through the condenser, and the communicating pipes in the supply side assembly of the geothermal source, the intermediate conversion assembly and/or the user side assembly are all provided with medium liquid filtering assemblies.
2. The interference-free clean heating system for middle-deep geothermal energy according to claim 1, characterized in that: the medium liquid filtering assembly comprises a filter screen fixed in the communicating pipe and a driver used for driving the middle of the filter screen to swing back and forth.
3. The interference-free clean heating system for middle-deep geothermal energy according to claim 2, characterized in that: still include the fixed cover of filter screen, the filter screen edge is fixed in the fixed cover interior circle of filter screen, the fixed cover of filter screen is with detachable mode fixed mounting in the intercommunication pipe.
4. The interference-free clean heating system for middle-deep geothermal energy according to claim 3, characterized in that: the filter screen fixing sleeve comprises an outer sleeve and an inner sleeve sleeved on the outer sleeve at intervals, the rear end of the inner sleeve and the rear end of the outer sleeve are fixed in a sealing mode, and an impurity storage cavity is formed between the inner sleeve and the outer sleeve in the radial direction.
5. The interference-free clean heating system for middle-deep geothermal energy according to claim 4, characterized in that: and the rear end of the impurity storage cavity is provided with a plurality of liquid discharge holes.
6. The interference-free clean heating system for middle-deep geothermal energy according to claim 5, characterized in that: the filter screen is in a circular arc shell shape after being opened.
7. The interference-free clean heating system for middle-deep geothermal energy according to claim 2, characterized in that: the driver is an excitation coil fixedly sleeved outside the communicating pipe, a permanent magnet sheet is fixedly arranged in the middle of the filter screen, and the excitation coil drives the filter screen to swing back and forth in the middle of the filter screen through electromagnetic force by passing currents in different directions.
8. The interference-free clean heating system for middle-deep geothermal energy according to claim 7, characterized in that: the front end and the rear end of the magnet exciting coil are both provided with filter screens, and the filter screen at the rear end is smaller than the filter screen at the front end in impurity filtering size.
9. The interference-free clean heating system for middle-deep geothermal energy according to claim 8, characterized in that: the excitation coil is the multiunit, and the multiunit is along fixed setting of communicating pipe length direction interval.
10. The interference-free clean heating system for middle-deep geothermal energy according to claim 4, characterized in that: the filter screen fixing sleeve is fixed in the communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010480029.XA CN111594913B (en) | 2020-05-29 | 2020-05-29 | Clean heating system of middle-deep layer geothermal energy interference-free |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010480029.XA CN111594913B (en) | 2020-05-29 | 2020-05-29 | Clean heating system of middle-deep layer geothermal energy interference-free |
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| Publication Number | Publication Date |
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| CN111594913A true CN111594913A (en) | 2020-08-28 |
| CN111594913B CN111594913B (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010480029.XA Active CN111594913B (en) | 2020-05-29 | 2020-05-29 | Clean heating system of middle-deep layer geothermal energy interference-free |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207113272U (en) * | 2017-07-10 | 2018-03-16 | 陕西德龙地热开发有限公司 | A kind of new mid-deep strata geothermal energy indirect heating system |
| US10464822B1 (en) * | 2017-12-13 | 2019-11-05 | U-Fuel, Inc. | Solar powered water purification kiosk |
| CN110631271A (en) * | 2019-10-25 | 2019-12-31 | 甘肃省建材科研设计院有限责任公司 | Medium-deep underground rock heat type heat supply system and heat supply method |
| CN209952314U (en) * | 2019-03-06 | 2020-01-17 | 内蒙古聚能节能服务有限公司 | Pipe network impurity removing device for ground source heat pump |
-
2020
- 2020-05-29 CN CN202010480029.XA patent/CN111594913B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207113272U (en) * | 2017-07-10 | 2018-03-16 | 陕西德龙地热开发有限公司 | A kind of new mid-deep strata geothermal energy indirect heating system |
| US10464822B1 (en) * | 2017-12-13 | 2019-11-05 | U-Fuel, Inc. | Solar powered water purification kiosk |
| CN209952314U (en) * | 2019-03-06 | 2020-01-17 | 内蒙古聚能节能服务有限公司 | Pipe network impurity removing device for ground source heat pump |
| CN110631271A (en) * | 2019-10-25 | 2019-12-31 | 甘肃省建材科研设计院有限责任公司 | Medium-deep underground rock heat type heat supply system and heat supply method |
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| CN111594913B (en) | 2021-09-14 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20200828 Assignee: Guangzhou Kemeite Laboratory Equipment Co.,Ltd. Assignor: Henan University of Urban Construction Contract record no.: X2023980038672 Denomination of invention: Medium and deep geothermal energy non-interference clean heating system Granted publication date: 20210914 License type: Common License Record date: 20230728 |
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