CN204629861U - A kind of underground energy-accumulation and ground source heat pump type air conditioner integration system - Google Patents
A kind of underground energy-accumulation and ground source heat pump type air conditioner integration system Download PDFInfo
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- CN204629861U CN204629861U CN201520043471.0U CN201520043471U CN204629861U CN 204629861 U CN204629861 U CN 204629861U CN 201520043471 U CN201520043471 U CN 201520043471U CN 204629861 U CN204629861 U CN 204629861U
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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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Abstract
The utility model relates to a kind of underground energy-accumulation and ground source heat pump type air conditioner integration system, comprise load unit, heat pump unit, heat collection unit, underground pipe heat exchange unit, heat pump unit is provided with compressor, evaporimeter, choke valve, condenser, the output of load unit and input form the first closed circuit by the first pipeline and valve V1, valve V2, and the output of load unit and input form the second closed circuit by the second pipeline and valve V5, valve V6; The output of underground pipe heat exchange unit and input form the 3rd closed circuit by the 3rd pipeline and valve V3, valve V4, and the output of underground pipe heat exchange unit and input form the 4th closed circuit by the 4th pipeline and valve V7, valve V8; The input of heat collection unit is communicated with formation the 5th closed circuit with the output of underground pipe heat exchange unit with input with output respectively by the 5th pipeline.The utility model has implements the advantage convenient, safe and reliable, stable, Energy Efficiency Ratio is high.
Description
Technical field
The utility model relates to ground source heat pump type field of air conditioning, especially relates to a kind of vertical core formula underground energy-accumulation and closed-loop ground source heat pump integrated application system.
Background technology
In recent years, based on economize energy and an urgent demand avoiding environmental pollution, ground source heat pump type air-conditioning technical is able to fast development and in building field extensive use.The usable floor area of current ground source heat pump type air-conditioning system in China's civil buildings is more than 1.4 hundred million square metres, and every year with 20% ~ 25% speed increase, geothermal heat pump air-conditioning system application scale is also developed to large building residential quarters by medium and small single building.
Geothermal heat pump air-conditioning system mainly using shallow rock soil layer as the low level heat energy of system or heat sink, carries out heat exchange by heat pump unit, and the most cold and hot energy transferring to user.Summer, shallow rock soil layer temperature is lower than the air themperature in rooms of buildings, geothermal heat pump air-conditioning system is using shallow rock soil layer as heat sink (or low-temperature receiver), heat pump unit freezes, and by the thermal release in heat exchange the most at last room in shallow rock soil layer, make room refrigeration cool-down; In winter, shallow rock soil layer is as low level heat energy, and heat pump unit heats, and by heat exchange the most at last thermal energy be supplied to user side, carry out heat supply in winter.At China's cold district; in the During Process of Long-term Operation of geothermal heat pump air-conditioning system; due to the heat extracted from shallow rock soil layer when the condensation heat of shallow rock soil layer discharge is less than heat supply in winter during air-conditioning system cooling in summer; the temperature of shallow rock soil layer is caused to reduce year by year; thus cause the COP value (Energy Efficiency Ratio) of ground source heat pump type air-conditioning system also can be low year by year, low temperature even can be caused to shut down phenomenon.And experimental result shows, after the temperature of shallow rock soil layer significantly reduces, the recovery of its Soil Thermal environment needs for a long time, and ground source heat pump type air-conditioning system scale is larger, and the recovery of its thermal environment is more difficult.As accompanying drawing 1 represents, for being respectively equipped with 100 meters of dark single pipe layings and the geothermal heat pump air-conditioning system of the underground pipe nest of tubes of 6 100 meters dark, spacing 7.5 meters runs time of 30 years continuously, the soil moisture of distance pipe laying 0.1 meter, 50 meters depths is relative to the situation of change of initial temperature.As seen from the figure: the soil moisture around single pipe laying and nest of tubes has identical decline and recovers feature, during beginning, the soil moisture declines very fast, slows down gradually afterwards; During recovery, incipient stage soil moisture quick heating, along with its change of prolongation of time also becomes relatively mild.But the recovery time of underground pipe nest of tubes surrounding soil temperature is more much longer than the recovery time of single pipe laying surrounding soil temperature, the heat recovery time of single pipe laying surrounding soil is approximately 24 years, and the heat recovery time of nest of tubes surrounding soil then needs about 70 years.
As can be seen here, in the design ap-plication of ground source heat pump type air-conditioning system, if avoid or suppress underground pipe surrounding soil temperature to reduce year by year, ensure that ground source heat pump type air-conditioning system is long-term, safety, reliable, stable operation is the important technological problems that this field needs to solve.
Utility model content
The purpose of this utility model is to provide a kind of underground energy-accumulation and ground source heat pump type air conditioner integration system, and it has implements the advantage convenient, safe and reliable, stable, Energy Efficiency Ratio is high.
Underground pipe surrounding soil temperature step-down is year by year caused after ground source heat pump type air-conditioning system longtime running for solving in prior art, thus cause the overall Energy Efficiency Ratio of air-conditioning system to reduce the technical problem even occurred because of low temperature shutdown phenomenon year by year, a kind of underground energy-accumulation of the utility model and ground source heat pump type air conditioner integration system, comprise load unit, heat pump unit, heat collection unit, underground pipe heat exchange unit, heat pump unit is provided with compressor, evaporimeter, choke valve, condenser, the output of load unit and input are by the first pipeline and valve V1, valve V2 forms the first closed circuit, the output of load unit and input are by the second pipeline and valve V5, valve V6 forms the second closed circuit, the output pipe of load unit is provided with circulating pump P1, the output of underground pipe heat exchange unit and input form the 3rd closed circuit by the 3rd pipeline and valve V3, valve V4, the output of underground pipe heat exchange unit and input form the 4th closed circuit by the 4th pipeline and valve V7, valve V8, and the output pipe of underground pipe heat exchange unit is provided with circulating pump P2, first closed circuit and the 4th closed circuit are provided with the first common pall at condenser place, first common pall is coupled with condenser and carries out heat exchange, valve V1 and valve V2 and V7 and valve V8 is located at outside the two ends of the first common pall respectively, second closed circuit and the 3rd closed circuit are provided with the second common pall at evaporimeter place, second common pall is coupled with evaporimeter and carries out heat exchange, and valve V5 and valve V6 and V3 and valve V4 is located at outside the two ends of the second common pall respectively, the input of heat collection unit is communicated with formation the 5th closed circuit with the output of underground pipe heat exchange unit with input with output respectively by the 5th pipeline, and the pipeline of connection heat collection unit input and output is respectively equipped with valve V10 and valve V9.
Alternatively, heat collection unit is air heat energy harvester, air heat energy harvester comprises aqueous vapor heat exchanger and water-flow circuit, aqueous vapor heat exchanger is located in water-flow circuit, water-flow circuit is communicated with the 5th closed circuit or is coupled, and air heat energy harvester carries out heat exchange for summer fever air and the 5th closed circuit and realizes underground heat storage.
Alternatively, heat collection unit is solar energy equipment, and solar energy equipment comprises heat collector and water-flow circuit, and water-flow circuit is communicated with the 5th closed circuit or is coupled, solar energy equipment be used for summer solar energy and the 5th closed circuit carry out heat exchange and realize underground heat storage.
Alternatively, heat collection unit is industrial waste heat heat collector, industrial waste heat heat collector is on industrial waste heat or waste heat circulation pipeline, industrial waste heat heat collector is coupled with the 5th closed circuit, industrial waste heat heat collector be used for summer industrial waste heat or waste heat and the 5th closed circuit carry out heat exchange and realize underground heat storage.
Preferably, underground pipe heat exchange unit is provided with organizes underground pipe more, and underground pipe is vertically arranged.
Preferably, the underground pipe degree of depth is 50 ~ 150 meters, and the distance between adjacent sets underground pipe is 3 ~ 6 meters.
Adopt a kind of underground energy-accumulation of the utility model and ground source heat pump type air conditioner integration system, by energy accumulating technique heat energy in summer transferred in shallow rock soil and store, as heat pump condensation heat, solar energy, outside atmosphere heat energy, industrial waste heat or waste heat etc., the heat energy in shallow rock soil layer takes out and heats to user by winter again.In the process, the heat energy in shallow rock soil layer is made to keep dynamic equilibrium to be ensure that earth-source hot-pump system is long-term, safety, the important technical of effective operation, if when namely in First Year, winter, heat that underground pipe heat exchange unit extracts from soil was greater than the heat be stored in summer in soil, then the soil moisture reduces, wanted suitably in shallow rock soil layer, store a little heat the 2nd year summer more, when the heat that winter extracted from soil in the 3rd year is less than the heat of storage, unnecessary heat can temporarily be stored in shallow rock soil layer, then the soil moisture raises, so within the 4th year, just can store less, run in this manner, take year as time step, around underground pipe, the thermal environment of shallow rock soil layer will keep dynamic equilibrium around its original temperature.
The utility model improves the Energy Efficiency Ratio that total system runs, and economic performance is high, ensure that the reliability of the sustainability of system cloud gray model and winter operation, security, makes the range of application of native system wider.The utility model is difficult to the problem recovered for its surrounding soil temperature after traditional closed-loop ground source heat pump formula air-conditioning system longtime running, with shallow rock soil layer seasonal energy storage technology, the performance of geothermal heat pump air-conditioning system is improved, namely by underground pipe, shallow rock soil layer is constituted new heating system across energy-storage system in season with earth-source hot-pump system is integrated, achieve solar energy, outside atmosphere heat energy, the season that turns of industrial waste heat or waste heat etc. uses, make the seasonality of system effectiveness not climate, the impact of the factors such as day-night change, improve the stability of system cloud gray model.In addition, the utility model, using shallow rock soil layer as energy-accumulating medium, overcomes the problem that artificial energy accumulating technique is complicated and investment is large.
Below in conjunction with detailed description of the invention shown in accompanying drawing, a kind of underground energy-accumulation of the utility model and ground source heat pump type air conditioner integration system are described in further detail:
Accompanying drawing explanation
Fig. 1 is that in prior art, geothermal heat pump air-conditioning system runs the time of 30 years continuously, and underground pipe surrounding soil temperature is relative to the situation of change schematic diagram of initial temperature.
Fig. 2 is the structural representation of a kind of underground energy-accumulation of the utility model and ground source heat pump type air conditioner integration system detailed description of the invention.
Detailed description of the invention
The detailed description of the invention of a kind of underground energy-accumulation of the utility model as shown in Figure 2 and ground source heat pump type air conditioner integration system, comprise load unit 1, heat pump unit 2, heat collection unit 3, underground pipe heat exchange unit 4, heat pump unit 2 is provided with compressor 201, evaporimeter 202, choke valve 203, condenser 204, in the heat absorption of evaporimeter 202 place in heat pump unit 2 running, in condenser 204 place's heat release.The output 101 of load unit 1 and input 102 form the first closed circuit by the first pipeline and valve V1, valve V2, the output 101 of load unit 1 and input 102 form the second closed circuit by the second pipeline and valve V5, valve V6, and on the output pipe of load unit 1, arrange circulating pump P1 for the first closed circuit and the second closed circuit and provide circulation driving force.The output 401 of underground pipe heat exchange unit 4 and input 402 form the 3rd closed circuit by the 3rd pipeline and valve V3, valve V4, the output 401 of underground pipe heat exchange unit 4 and input 402 form the 4th closed circuit by the 4th pipeline and valve V7, valve V8, and on the output pipe of underground pipe heat exchange unit 4, arrange circulating pump P2 for the 3rd closed circuit and the 4th closed circuit and provide circulation driving force.First closed circuit and the 4th closed circuit are provided with the first common pall 5 at condenser 204 place, first common pall 5 is coupled with condenser 204 and carries out heat exchange, and makes valve V1 and valve V2 and V7 and valve V8 be arranged on outside the two ends of the first common pall 5 respectively; Second closed circuit and the 3rd closed circuit are provided with the second common pall 6 at evaporimeter 202 place, second common pall 6 is coupled with evaporimeter 202 and carries out heat exchange, and valve V5 and valve V6 and V3 and valve V4 is arranged on outside the two ends of the second common pall 6 respectively.The input of heat collection unit 3 is communicated with formation the 5th closed circuit with the output 401 of underground pipe heat exchange unit 4 with input 402 with output respectively by the 5th pipeline, and arranges valve V10 and valve V9 respectively on the pipeline connecting heat collection unit 3 input and output.
In present embodiment, heat collection unit 3 adopts air heat energy harvester, and air heat energy harvester comprises aqueous vapor heat exchanger and water-flow circuit, and aqueous vapor heat exchanger is located in water-flow circuit, and water-flow circuit is communicated with the 5th closed circuit or is coupled.This kind of vibrational power flow, freezes in full summer and under accumulation of energy operating mode, carries out heat exchange by water-flow circuit, the 5th closed circuit and underground pipe heat exchange unit 4, air heat energy can be transformed into shallow rock soil layer and store under winter heating's heating operating mode.
It should be noted that, heat collection unit 3 is not limited to the vibrational power flow of air heat energy harvester formula, also the various ways such as solar energy equipment, industrial waste heat or waste heat heat collector can be adopted, solar energy equipment can be designed to comprise heat collector and water-flow circuit, water-flow circuit is communicated with the 5th closed circuit or is coupled, solar energy is converted to heat energy by solar energy equipment, and carry out heat exchange by water-flow circuit, the 5th closed circuit and underground pipe heat exchange unit 4 and shallow rock soil layer, by thermal energy storage under shallow rock soil layer heats operating mode for winter heating.Industrial waste heat or waste heat heat collector refer to the device forming closed circuit with industrial waste heat or waste heat source, and heat collector extracts heat from industrial waste heat or waste heat source, and are coupled with the 5th closed circuit and carry out heat exchange, heat are passed to shallow rock soil layer and realize underground energy-accumulation.In addition, the underground pipe heat exchange unit 4 in the utility model is provided with organizes underground pipe more, and is vertically arranged by underground pipe, and the degree of depth of underground pipe is 50 ~ 150 meters, and the distance between adjacent sets underground pipe is 3 ~ 6 meters.
For helping those skilled in the art more clearly to understand the utility model, below the running of a kind of underground energy-accumulation of the utility model and ground source heat pump type air conditioner integration system is described in further detail.The utility model can realize cooling condition early summer quickly and easily by the closedown of valve, midsummer freezes and the conversion of accumulation of energy operating mode and winter heating's heating operating mode three kinds of operational modes.
Under early summer cooling condition, outside air temperature is lower, and now V1, V2, V3, V4, V9, V10 close, and V5, V6, V7, V8 open, and load unit 1, heat pump unit 2 and underground pipe heat exchange unit 4 run, and heat collection unit 3 is out of service.Heat pump unit 2 refrigerating operaton, heat exchange is carried out at place of condenser place 204 and the 4th closed circuit, and the condensation heat that heat pump unit 2 produces is passed to underground pipe heat exchange unit 4, to shallow rock soil layer release heat, carry out accumulation of energy, heat pump unit 2 carries out heat exchange at evaporimeter 202 place and the second closed circuit, cold is passed to load unit 1, is end user's refrigeration cool-down;
Midsummer refrigeration and accumulation of energy operating mode under, outside air temperature is higher, usually above 25 DEG C, now V1, V2, V3, V4 close, V5, V6, V7, V8, V9, V10 unlatching, load unit 1, heat pump unit 2, heat collection unit 3, underground pipe heat exchange unit 4 all run.On the one hand, heat pump unit 2 refrigerating operaton, heat exchange is carried out at place of condenser place 204 and the 4th closed circuit, and the condensation heat that heat pump unit 2 produces is passed to underground pipe heat exchange unit 4, to shallow rock soil layer release heat, carry out accumulation of energy, heat pump unit 2 carries out heat exchange at evaporimeter 202 place and the second closed circuit, cold being passed to load unit 1, is end user's refrigeration cool-down; On the other hand, heat collection unit 3 carries out heat exchange by the 5th closed circuit and underground pipe heat exchange unit 4, and rejects heat to shallow rock soil layer by underground pipe heat exchange unit 4, also carries out accumulation of energy.
Under winter heating's heating operating mode, shallow rock soil layer temperature is than air themperature is high on the ground, shallow rock soil layer is as low-temperature heat source, now V1, V2, V3, V4 open, V5, V6, V7, V8, V9, V10 close, load unit 1, heat pump unit 2 and underground pipe heat exchange unit 4 run, and heat collection unit 3 is out of service.Underground pipe heat exchange unit 4 extracts thermal source from shallow rock soil layer, heat exchange is carried out at evaporimeter 202 place and heat pump unit 2 by the 3rd closed circuit, heat pump unit 2 is driven to heat, heat pump unit 2 carries out heat exchange at condenser 204 place and the first closed circuit, by the first closed circuit, thermal energy being passed to load unit 1, is end user's heating.
Above embodiment is only the description carried out preferred embodiment of the present utility model; the restriction not the utility model request protection domain carried out; under the prerequisite not departing from the utility model design spirit; the various forms of distortion that this area engineers and technicians make according to the technical solution of the utility model, all should fall in protection domain that claims of the present utility model determine.
Claims (6)
1. a underground energy-accumulation and ground source heat pump type air conditioner integration system, comprise load unit (1), heat pump unit (2), heat collection unit (3), underground pipe heat exchange unit (4), heat pump unit (2) is provided with compressor (201), evaporimeter (202), choke valve (203), condenser (204), it is characterized in that: the output (101) of load unit (1) and input (102) are by the first pipeline and valve V1, valve V2 forms the first closed circuit, the output (101) of load unit (1) and input (102) are by the second pipeline and valve V5, valve V6 forms the second closed circuit, the output pipe of load unit (1) is provided with circulating pump P1, the output (401) of underground pipe heat exchange unit (4) and input (402) form the 3rd closed circuit by the 3rd pipeline and valve V3, valve V4, the output (401) of underground pipe heat exchange unit (4) and input (402) form the 4th closed circuit by the 4th pipeline and valve V7, valve V8, and the output pipe of underground pipe heat exchange unit (4) is provided with circulating pump P2, first closed circuit and the 4th closed circuit are provided with the first common pall (5) at condenser (204) place, first common pall (5) is coupled with condenser (204) and carries out heat exchange, valve V1 and valve V2 and V7 and valve V8 is located at outside the two ends of the first common pall (5) respectively, second closed circuit and the 3rd closed circuit are provided with the second common pall (6) at evaporimeter (202) place, second common pall (6) is coupled with evaporimeter (202) and carries out heat exchange, valve V5 and valve V6 and V3 and valve V4 is located at outside the two ends of the second common pall (6) respectively, the input of heat collection unit (3) is communicated with formation the 5th closed circuit with the output (401) of underground pipe heat exchange unit (4) with input (402) with output respectively by the 5th pipeline, and the pipeline of connection heat collection unit (3) input and output is respectively equipped with valve V10 and valve V9.
2. according to a kind of underground energy-accumulation according to claim 1 and ground source heat pump type air conditioner integration system, it is characterized in that: described heat collection unit (3) is air heat energy harvester, air heat energy harvester comprises aqueous vapor heat exchanger and water-flow circuit, aqueous vapor heat exchanger is located in water-flow circuit, water-flow circuit is communicated with the 5th closed circuit or is coupled, and air heat energy harvester carries out heat exchange for summer fever air and the 5th closed circuit and realizes underground heat storage.
3. according to a kind of underground energy-accumulation according to claim 1 and ground source heat pump type air conditioner integration system, it is characterized in that: described heat collection unit (3) is solar energy equipment, solar energy equipment comprises heat collector and water-flow circuit, water-flow circuit is communicated with the 5th closed circuit or is coupled, solar energy equipment be used for summer solar energy and the 5th closed circuit carry out heat exchange and realize underground heat storage.
4. according to a kind of underground energy-accumulation according to claim 1 and ground source heat pump type air conditioner integration system, it is characterized in that: described heat collection unit (3) is industrial waste heat heat collector, industrial waste heat heat collector is on industrial waste heat or waste heat circulation pipeline, industrial waste heat heat collector is coupled with the 5th closed circuit, industrial waste heat heat collector be used for summer industrial waste heat or waste heat and the 5th closed circuit carry out heat exchange and realize underground heat storage.
5. according to a kind of underground energy-accumulation described in any one of claim 1-4 and ground source heat pump type air conditioner integration system, it is characterized in that: described underground pipe heat exchange unit (4) is provided with organizes underground pipe more, and underground pipe is vertically arranged.
6. according to a kind of underground energy-accumulation according to claim 5 and ground source heat pump type air conditioner integration system, its feature exists: the described underground pipe degree of depth is 50 ~ 150 meters, and the distance between adjacent sets underground pipe is 3 ~ 6 meters.
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| CN201520043471.0U CN204629861U (en) | 2015-01-22 | 2015-01-22 | A kind of underground energy-accumulation and ground source heat pump type air conditioner integration system |
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| CN201520043471.0U CN204629861U (en) | 2015-01-22 | 2015-01-22 | A kind of underground energy-accumulation and ground source heat pump type air conditioner integration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566728A (en) * | 2015-01-22 | 2015-04-29 | 北京万方同泰能源科技有限公司 | Underground energy storage and ground source heat pump type air conditioning integrated system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566728A (en) * | 2015-01-22 | 2015-04-29 | 北京万方同泰能源科技有限公司 | Underground energy storage and ground source heat pump type air conditioning integrated system |
| CN104566728B (en) * | 2015-01-22 | 2017-11-21 | 北京万方同泰能源科技有限公司 | A kind of underground energy-accumulation and ground source heat pump type air conditioner integration system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160122 |
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| EXPY | Termination of patent right or utility model |