CN212179278U - Underground rock heat supplementing device of ground source heat pump system - Google Patents

Underground rock heat supplementing device of ground source heat pump system Download PDF

Info

Publication number
CN212179278U
CN212179278U CN202020713907.3U CN202020713907U CN212179278U CN 212179278 U CN212179278 U CN 212179278U CN 202020713907 U CN202020713907 U CN 202020713907U CN 212179278 U CN212179278 U CN 212179278U
Authority
CN
China
Prior art keywords
heat
ground
heat pump
supplementing
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020713907.3U
Other languages
Chinese (zh)
Inventor
文兰
刘亭
曹相东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fourth Exploration Team Of Shandong Coalfield Geology Bureau
Original Assignee
Fourth Exploration Team Of Shandong Coalfield Geology Bureau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fourth Exploration Team Of Shandong Coalfield Geology Bureau filed Critical Fourth Exploration Team Of Shandong Coalfield Geology Bureau
Priority to CN202020713907.3U priority Critical patent/CN212179278U/en
Application granted granted Critical
Publication of CN212179278U publication Critical patent/CN212179278U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Other Air-Conditioning Systems (AREA)

Abstract

The utility model discloses an underground rock heat supplement device of a ground source heat pump system, which relates to the technical field of heat supplement of the ground source heat pump system, and comprises a heat pump unit, an energy consumption end, a heat supplement system and a ground heat exchanger; the heat supplementing system is a source of supplementing heat and is used for supplementing heat to underground rock and soil and providing partial low-grade heat for the heat pump unit, the ground heat exchanger and the heat supplementing system are both connected with the heat pump unit, and the output end and the energy utilization end of the heat pump unit are connected through a heat supply pipeline. The utility model relates to a ground source heat pump system ground heat supplement unit, the application is concentrated waste heat and environment heat itself and is collected, is linked together with ground heat exchanger and heat pump set after collecting to carry out circulation loop's conversion through pipeline and valve, very environmental protection, investment cost is low, and can carry out heat supply and cooling for the ground body, guarantees the stability of ground body temperature, has guaranteed the operation that ground source heat pump system is stable normal.

Description

Underground rock heat supplementing device of ground source heat pump system
Technical Field
The utility model relates to a ground source heat pump system heat supplyes technical field, specifically is a ground source heat pump system underground ground heat supplyes device.
Background
The ground source heat pump is a device which takes rock and soil mass as a cold and heat source, consists of a heat pump unit, a ground heat exchanger and an energy utilization end and realizes the transfer from low-grade heat energy to high-grade heat energy by consuming a small amount of high-grade energy. The ground heat exchanger is coupled with the rock-soil body, and when the energy end is used for refrigerating, the heat pump unit discharges heat to the rock-soil body through the ground heat exchanger; when the energy end is used for heating, the heat pump unit absorbs heat to the underground rock and soil body through the ground heat exchanger. The rock-soil body mainly plays a role in storing low-grade heat, when the difference between the heat quantity discharged into and absorbed by the heat pump unit to the rock-soil body is within a certain range, the temperature self-recovery of the rock-soil body can be realized through heat transfer between the rock-soil bodies, but when the difference between the heat quantity discharged into and absorbed by the heat pump unit to the rock-soil body exceeds a certain range, the temperature of the rock-soil body changes gradually, and therefore the operation of the ground source heat pump is influenced. The process that the heat pump unit extracts cold energy to the user end and discharges heat to the rock-soil body is a heat absorption process of the rock-soil body, the process that the heat pump unit extracts heat to the user end and absorbs heat to the rock-soil body is a heat release process of the underground rock-soil body, the heat absorption process and the heat release process are respectively concentrated once in a year, and circulation is carried out by taking the year as a period.
The usage amount of the ground source heat pump is wide at the present stage, but the temperature of the underground rock-soil mass of part of projects is reduced year by year, so that the energy efficiency of the ground source heat pump is negatively influenced, and meanwhile, the ground source heat pump cannot work when the temperature of the rock-soil mass is lower than a certain value. The main reasons for the temperature reduction of rock-soil mass include: in the actual use of part of projects, the heat demand of the energy end is far greater than the cold demand, so that the temperature of the rock-soil body is reduced; the volume of a rock-soil body coupled with the ground heat exchanger is insufficient due to the problems of incompact backfill, leakage, insufficient depth and other construction quality of vertical shafts of the ground heat exchanger in some projects, so that the temperature of local rock bodies is reduced year by year; part of projects are designed to only extract heat to the energy utilization end or the cold and heat demand is unbalanced, but a reasonable design method is not adopted, so that the underground rock-soil body is reduced year by year.
The existing method for solving the problem of temperature drop of underground rock soil comprises the following steps: the high-grade heat source supplement is adopted, the main forms comprise an electric boiler, an electric heater, a natural gas boiler and the like, and the form has low efficiency and high cost; the heat source tower is adopted to absorb external heat for heat supplement, the mode has high water consumption and needs to increase harmful substances, and the mode is not environment-friendly; the ground source heat pump unit is replaced, and the ground source heat pump unit of the vapor enthalpy-supplementing booster compressor is adopted, so that the ground source heat pump unit can operate at lower rock-soil temperature, but anti-freezing solution needs to be added into the ground heat exchanger, and the rock-soil temperature can still be continuously reduced; by installing the heat exchanger, the heat at the energy end of the ground source heat pump is supplemented to the buried pipe heat exchanger, so that the alarm of the heat pump unit is prevented.
In order to well solve the problem that the normal operation of a ground source heat pump system is affected by the temperature reduction of underground rock and soil bodies in an operation project, a heat supplementing device which is economical in operation and convenient to install is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the not enough and defect that exists among the prior art, the utility model provides a ground source heat pump system underground ground heat supplementary device through replenishing the heat to ground heat exchanger, and then can improve underground ground temperature, or can reduce the proportion that the underground ground undertakes the heat source volume to ground source heat pump set to guarantee ground source heat pump system normal operating.
In order to solve the technical problem, the utility model discloses a following technical scheme: an underground rock heat supplement device of a ground source heat pump system comprises a heat pump unit, an energy utilization end, a heat supplement system and a ground heat exchanger; the heat supplementing system is a source of supplementing heat and is used for supplementing heat to underground rock and soil and providing partial low-grade heat for the heat pump unit, the heat supplementing system comprises a waste heat collecting pipeline, a solar heat collecting plate, an air source heat pump and a deep heat well heat collecting pipeline of a factory power plant, and the waste heat collecting pipeline, the solar heat collecting plate, the air source heat pump and the deep heat well heat collecting pipeline of the factory power plant are connected in series and are respectively communicated with a heat supplying pipeline and a return pipeline of the heat supplementing system; the ground heat exchanger and the heat supplement system are both connected with the heat pump unit, and the output end of the heat pump unit is connected with the energy utilization end through a pipeline.
As a further improvement, the heat supplementing system is provided with a four-way steel pipe on the heat supply pipeline, the front end of the four-way steel pipe is provided with a valve I, and a valve V is arranged on the return pipeline.
As a further improvement, the other three steel pipe of cross steel pipe connects different ends respectively, the left side steel pipe pass through valve II with ground heat exchanger's output is connected, the downside steel pipe pass through valve III with ground heat exchanger's input is connected, and the right side steel pipe is connected to heat pump set through valve IV, heat pump set is connected to ground heat exchanger's input.
As a further improvement of the utility model, the valve V is connected with the output end of the ground heat exchanger.
As a further improvement of the utility model, the input and the output of ground heat exchanger are all through the pipe connection of tee bend steel pipe and two directions.
Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model relates to a ground source heat pump system ground heat supplement unit, the application is concentrated waste heat and environment heat itself and is collected, is linked together with ground heat exchanger and heat pump set after collecting to carry out circulation loop's conversion through pipeline and valve, very environmental protection, investment cost is low, and can carry out heat supply and cooling for the ground body, guarantees the stability of ground body temperature, has guaranteed the operation that ground source heat pump system is stable normal.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic diagram of a system structure according to an embodiment of the present invention.
In the figure: 1. the system comprises a heat supplementing system, 101, a waste heat collecting pipeline of a factory power plant, 102, a solar heat collecting plate, 103, an air source heat pump, 104, a deep heat well heat collecting pipeline, 105, a heat supplying pipeline, 106, a return pipeline, 2, a ground heat exchanger, 3, a heat pump unit, 4, an energy using end, 5, underground rock soil, 6, a four-way steel pipe, 7, a valve group, 701, a valve I, 702, a valve II, 703, a valve III, 704, a valve IV, 705, a valve V and 8, and a three-way steel pipe.
It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Detailed Description
In order to make the technical solution and the advantages of the present invention more clear and more obvious, the present invention is further described in detail with reference to the accompanying drawings and the specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an underground rock heat supplement device of a ground source heat pump system comprises a heat pump unit 3, an energy utilization end 4, a heat supplement system 1 and a ground heat exchanger 2;
the heat supplementing system 1 is a source of supplementing heat and is used for supplementing heat to underground rock and soil 5 and providing partial low-grade heat for the heat pump unit 3, the heat supplementing system 1 comprises a waste heat collecting pipeline 101, a solar heat collecting plate 102, an air source heat pump 103 and a deep heat well heat collecting pipeline 104 of a factory power plant, and the waste heat collecting pipeline 101, the solar heat collecting plate 102, the air source heat pump 103 and the deep heat well heat collecting pipeline 104 of the factory power plant are connected in series and are respectively communicated with a heat supplying pipeline 105 and a return pipeline 106 of the heat supplementing system 1;
the ground heat exchanger 2 and the heat supplement system 1 are both connected with a heat pump unit 3, and the output end of the heat pump unit 3 is connected with an energy utilization end 4 through a pipeline.
The heat supply pipeline 105 of the heat supplementing system 1 is provided with a four-way steel pipe 6, the front end of the four-way steel pipe 6 is provided with a valve I701, and the return pipeline 106 is provided with a valve V705. The other three steel pipes of the four-way steel pipe 6 are respectively connected with different ends, the left steel pipe is connected with the output end of the ground heat exchanger 2 through a valve II 702, the lower steel pipe is connected with the input end of the ground heat exchanger 2 through a valve III 703, the right steel pipe is connected to the heat pump unit 3 through a valve IV 704, and the heat pump unit 3 is connected to the input end of the ground heat exchanger 2. The valve v 705 is connected to the output of the borehole heat exchanger 2. The input end and the output end of the ground heat exchanger 2 are connected with pipelines in two directions through a three-way steel pipe 8.
The above mentioned pipeline and each valve realize the conversion function of the circulation loop, the circulation medium in the pipeline is water, the circulation power comes from the water pump; the energy end 4 has the functions of regulating indoor temperature, providing domestic hot water and the like; the heat pump unit 3 plays a role in extracting cold and heat from the ground heat exchanger 2 to the energy utilization end 4; the heat supplement system 1 is a source of supplement heat and is used for supplementing heat to the underground rock and soil 5 or providing part of low-grade heat for the heat pump unit 3; the ground heat exchanger 2 plays a role of transferring the obtained heat into the underground rock soil 5 or providing a heat source for the heat pump unit 3.
The ground heat exchanger 2 consists of a vertical shaft and a horizontal pipe, wherein the vertical shaft consists of a vertical hole, a U-shaped heat exchange pipe and backfill materials between the holes and the pipes.
The heat supplementing system 1 may be one or a combination of several of a waste heat collecting pipe 101, a solar heat collecting plate 102, an air source heat pump 103, a deep geothermal well heat collecting pipe 104, etc. of a factory power plant, and may also be composed of other low-grade heat sources or waste heat. The heat of the deep geothermal well heat collecting pipe 104 is the heat energy generated by the decay of the radioactive elements of the earth, has the advantages of stability, continuity, high utilization efficiency and the like, and is clean and sustainable energy.
The utility model discloses an operating condition of three kinds of differences can be constituteed to each valve:
(1) the valve I701, the valve V705 and the valve III 703 are closed, the valve II 702 and the valve IV 704 are opened, the heat supplementing system 1 is in a pause state at the moment, the heat pump unit 3 works, and the ground heat exchanger 2 is communicated with a pipeline of the heat pump unit 3 and is used for bearing a heat source of the heat pump unit 3;
(2) a valve I701, a valve V705 and a valve IV 704 are opened, a valve II 702 and a valve III 703 are closed, the heat supplementing system 1 works at the moment, the heat pump unit 3 works, the ground heat exchanger 2, the heat supplementing system 1 and the heat pump unit 3 are communicated through the valve I701, the valve V705, the valve IV 704 and a pipeline, and the ground heat exchanger 2 and the heat supplementing system 1 jointly bear a heat source of the heat pump unit 3;
(3) the valve I701, the valve V705 and the valve III 703 are opened, the valve II 702 and the valve IV 704 are closed, at the moment, the heat supplementing system 1 works, the heat pump unit 3 does not work, and the heat supplementing system 1 provides a cold and heat source for the ground heat exchanger 2, so that cold and heat are supplemented for the underground rock 5.
The utility model relates to a ground source heat pump system ground heat supplement unit, the application is concentrated waste heat and environment heat itself and is collected, is linked together with ground heat exchanger and heat pump set after collecting to carry out circulation loop's conversion through pipeline and valve, very environmental protection, investment cost is low, and can carry out heat supply and cooling for the ground body, guarantees the stability of ground body temperature, has guaranteed the operation that ground source heat pump system is stable normal.

Claims (5)

1. The utility model provides a ground source heat pump system ground rock heat replenishing device which characterized in that: comprises a heat pump unit (3), an energy consumption end (4), a heat supplement system (1) and a ground heat exchanger (2);
the heat supplementing system (1) is a source for supplementing heat, and is used for supplementing heat to underground rock and soil (5) and providing partial low-grade heat for the heat pump unit (3), the heat supplementing system (1) comprises a waste heat collecting pipeline (101), a solar heat collecting plate (102), an air source heat pump (103) and a deep heat well heat collecting pipeline (104) of a factory power plant, and the waste heat collecting pipeline (101), the solar heat collecting plate (102), the air source heat pump (103) and the deep heat well heat collecting pipeline (104) of the factory power plant are connected in series and are respectively communicated with a heat supply pipeline (105) and a return pipeline (106) of the heat supplementing system (1);
the ground heat exchanger (2) and the heat supplement system (1) are connected with the heat pump unit (3), and the output end of the heat pump unit (3) is connected with the energy utilization end (4) through a pipeline.
2. The underground rock-soil heat supplementing device of the ground source heat pump system according to claim 1, characterized in that: the heat supply pipeline (105) of the heat supplementing system (1) is provided with a four-way steel pipe (6), the front end of the four-way steel pipe (6) is provided with a valve I (701), and the return pipeline (106) is provided with a valve V (705).
3. The underground rock-soil heat supplementing device of the ground source heat pump system according to claim 2, characterized in that: the other three steel pipes of the four-way steel pipe (6) are respectively connected with different ends, the left steel pipe is connected with the output end of the ground heat exchanger (2) through a valve II (702), the lower steel pipe is connected with the input end of the ground heat exchanger (2) through a valve III (703), the right steel pipe is connected to the heat pump unit (3) through a valve IV (704), and the heat pump unit (3) is connected to the input end of the ground heat exchanger (2).
4. The underground rock-soil heat supplementing device of the ground source heat pump system according to claim 2, characterized in that: the valve V (705) is connected with the output end of the ground heat exchanger (2).
5. The underground rock-soil heat supplementing device of the ground source heat pump system according to claim 3 or 4, characterized in that: the input end and the output end of the ground heat exchanger (2) are connected with pipelines in two directions through a three-way steel pipe (8).
CN202020713907.3U 2020-05-06 2020-05-06 Underground rock heat supplementing device of ground source heat pump system Active CN212179278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020713907.3U CN212179278U (en) 2020-05-06 2020-05-06 Underground rock heat supplementing device of ground source heat pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020713907.3U CN212179278U (en) 2020-05-06 2020-05-06 Underground rock heat supplementing device of ground source heat pump system

Publications (1)

Publication Number Publication Date
CN212179278U true CN212179278U (en) 2020-12-18

Family

ID=73766292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020713907.3U Active CN212179278U (en) 2020-05-06 2020-05-06 Underground rock heat supplementing device of ground source heat pump system

Country Status (1)

Country Link
CN (1) CN212179278U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576705A (en) * 2023-05-12 2023-08-11 北京盈创力和电子科技有限公司 Rock-soil energy storage intelligent sensing and compensating system, method, server and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116576705A (en) * 2023-05-12 2023-08-11 北京盈创力和电子科技有限公司 Rock-soil energy storage intelligent sensing and compensating system, method, server and storage medium
CN116576705B (en) * 2023-05-12 2023-10-13 北京盈创力和电子科技有限公司 Rock-soil energy storage intelligent sensing and compensating system, method, server and storage medium

Similar Documents

Publication Publication Date Title
CN203823873U (en) Solar heat pump heat accumulating and heating system
CN203657051U (en) Direct condensation type air source heat pump floor heating system
CN201335532Y (en) Shallow-layer ground-energy combined-type large-scale solar hot water device
CN105180508A (en) Combined cooling, heating and power supply system based on solar energy
CN104197396A (en) Method and system for cross-season utilization of waste heat of thermal power plants
CN104864447B (en) Comprehensive regenerative resource cold and heat supply system
CN201926005U (en) Urban heating system
CN203880988U (en) Deep dry heat rock stratum geotherm combined heat exchange system
Peng et al. Enhancement technology of underground water flow field in coal mine to improve energy efficiency of heat pump system in geothermal energy development
CN212179278U (en) Underground rock heat supplementing device of ground source heat pump system
CN209042495U (en) A kind of combined heat-pump system using urban domestic garbage degradation heat
CN113606639B (en) Heating system of gas boiler room and energy utilization method
CN202328901U (en) Ground source heat pump composite system for restoring soil energy by using solar energy
CN202382478U (en) Solar ground source heat pump
CN202853199U (en) Vertical buried pipe type ground source heat pump hot water and air-conditioning system
CN206817585U (en) Hot-water type solar and superficial layer geothermal energy cogeneration of heat and power integral system
CN211977002U (en) Single heating ground source heat pump system
CN214664757U (en) Utilize geothermal energy and water source heat pump energy coupling heating system
CN104061709A (en) Hot-dry rock single-effect lithium bromide absorbing-type heat pump heat supply system
CN203949406U (en) Hot dry rock mono-potency lithium bromide absorption type heat pump heat distribution system
CN210292427U (en) Mine waste heat soil source hybrid heat pump system
CN102200315A (en) Urban heating method in conformity with low-carbon energy policy
CN111765569A (en) Comprehensive energy supply system
CN111854230A (en) Split type composite ground source heat pump heating and cooling system
CN205191983U (en) Water source heat pump cycle system based on weather conditions is different

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant