CN110388765A - Alleviate the ground-source heat pump system and method for the warm and humid independent control of soil hot stack - Google Patents
Alleviate the ground-source heat pump system and method for the warm and humid independent control of soil hot stack Download PDFInfo
- Publication number
- CN110388765A CN110388765A CN201910634592.5A CN201910634592A CN110388765A CN 110388765 A CN110388765 A CN 110388765A CN 201910634592 A CN201910634592 A CN 201910634592A CN 110388765 A CN110388765 A CN 110388765A
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- Prior art keywords
- heat pump
- heat
- solution
- pump unit
- soil
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Classifications
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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
-
- 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
-
- 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
- F25B39/00—Evaporators; Condensers
-
- 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The present invention relates to the ground-source heat pump systems and method of a kind of warm and humid independent control for alleviating soil hot stack, buried tube heat exchanger connects heat pump unit, buried tube heat exchanger directly carries out heat exchange with soil through tube wall by recirculated water in managing, recirculated water discharges the heat that heat pump unit absorbs into soil when summer operating mode, when winter condition, absorbs heat from soil and heat is transmitted to interior through heat pump unit；Solution dehumidification device includes Dehumidifying element and regeneration unit, regeneration for dehumidifying and solution in regional air, daytime, fresh air was dehumidified by Dehumidifying element, concentrated solution becomes weak solution and is stored in NaOH solution tank NaOH, night runs inverse operating condition, heat pump unit generates high temperature heat source by regeneration unit reconstituted solution, in case following cycle uses；Heat pump unit and solution dehumidification device are separately connected air conditioning terminal, chilled water become cold wind by air conditioning terminal act in building to reduce room temperature.
Description
Technical field
The present invention relates to a kind of ground source heat pump technology more particularly to a kind of earth source heat pump systems for alleviating soil hot stack problem
System.
Background technique
In recent years, since energy problem gets worse, earth source heat pump (Ground source heat pump system,
GSHPs renewable energy technologies) are used as, have environmentally protective, system performance and reliability higher, and can flexibly combine a variety of
The features such as auxiliary device, in building heating and being also continuously increased using more and more, compound functions in refrigeration air-conditioner.With
The fast development of ground-source heat pump system, the longtime running institute problem is also increasingly apparent, due to year heat exhaust and caloric receptivity
Uneven problem, will cause the hot stack or cold dome product of soil, and then influence the working efficiency of heat pump unit.
It is greater than refrigeration duty area for thermic load, the ground-source heat pump system of warm and humid independent control is as a kind of novel heat pump system
System form is to attached a set of solution dehumidification device, air conditioning terminal and dehumidification device on the basis of traditional geothermal heat pump air-conditioner
The temperature and humidity of architecture indoor are adjusted respectively, and this mode is in addition to that can be better achieved the adjusting to room temperature and humidity
Outside, can also summer evenings run winter condition (i.e. against operating condition) by way of come extract discharged into soil daytime it is extra
Heat is used for the regeneration of solution, and soil hot stack problem is effectively relieved.The ground-source heat pump system of warm and humid independent control is by temperature
It is separately handled with humidity, controls humidity by being sent into through solution dehumidification device treated dry air, pass through high temperature cold source
(18 DEG C) control room temperatures, this mode not only increase indoor comfort, also have good energy-saving effect.
For this purpose, for soil hot stack alleviate problem, propose it is a kind of using buried tube heat exchanger, heat pump unit, air conditioning terminal,
The ground-source heat pump system for the independent temperature-humidity control that solution dehumidification device is connected to form alleviates soil hot stack problem, meets section
It can consumption reduction requirement.
Summary of the invention
It is an object of the invention to provide for hot stack problem caused by traditional ground-source heat pump system longtime running
A kind of ground-source heat pump system and method for warm and humid independent control that alleviating soil hot stack problem.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of ground-source heat pump system of warm and humid independent control that alleviating soil hot stack, including buried tube heat exchanger, heat pump machine
Group, air conditioning terminal, solution dehumidification device, the buried tube heat exchanger connect heat pump unit, and the buried tube heat exchanger in pipe by following
Ring water directly carries out heat exchange with soil through tube wall, and recirculated water releases the heat that heat pump unit absorbs into soil when summer operating mode
It puts, when winter condition, absorbs heat from soil and heat is transmitted to interior through heat pump unit；The solution dehumidification device includes removing
Wet unit and regeneration unit, for the regeneration of dehumidifying and solution in regional air, daytime, fresh air was carried out by Dehumidifying element
Dehumidifying, concentrated solution become weak solution and are stored in NaOH solution tank NaOH, and night runs inverse operating condition, and heat pump unit generates high temperature heat source by again
Raw regeneration unit concentrated solution, in case following cycle uses；The heat pump unit and solution dehumidification device are separately connected air conditioning terminal,
It chilled water is become cold wind by air conditioning terminal acts in building to reduce room temperature.
Further, the heat pump unit includes sequentially connected evaporator, compressor, condenser, throttle valve, the evaporation
Device draw heat from ambient enviroment, steam temperature and pressure after compressor rise, discharge heat into condenser, make its liquid
Change achievees the effect that heating, then passes through throttle valve reducing pressure by regulating flow Returning evaporimeter.
Further, the buried tube heat exchanger is single U-shaped pipe laying.
Further, the heat pump unit uses waterwater heat pump unit.
Further, the solution dehumidification device is marco solution dehumidification composite module.
Further, form parameter, the thermal coefficient for inputting buried tube heat exchanger in the ground-source heat pump system respectively, between drilling
Away from, depth, quantity, building by when humidity load, the number parameter of the specified heating of heat pump, refrigerating capacity and heat pump, and foundation
The flowing relation of heat, the flowing relation of quality or start-stop time control heat pump unit work.
A method of earth source heat pump that alleviating the warm and humid independent control of soil hot stack, using alleviation soil hot stack
The ground-source heat pump system of warm and humid independent control, comprising the following steps:
Step 1: when summer operation, heat pump unit daytime runs summer operating mode, mentions to air conditioning terminal and solution dehumidification device
For refrigeration duty for freezing and dehumidifying, solution is thinning during this；
Step 2: night runs winter condition in low rate period, and heat pump unit is absorbed more in soil by buried tube heat exchanger
Remaining heat generates dehumidizer weak solution of the high temperature heat source in solution dehumidification device and is regenerated as concentrated solution, follows in case subsequent
Ring uses.
The invention has the benefit that
1. hot relief capabilities are strong.A kind of ground source heat of warm and humid independent control for alleviating soil hot stack according to the present invention
Pumping system can run winter condition by summer evenings, absorb heat extra in soil；
2. system COP high.A kind of ground source of warm and humid independent control for alleviating soil hot stack problem according to the present invention
Heat pump system need to only exclude the sensible heat load in building, low temperature needed for can use high temperature cold source tradition ground-source heat pump system
Cold source；
3. low energy consumption for heat pump unit.A kind of warm and humid independent control for alleviating soil hot stack problem according to the present invention
The coefficient of performance of ground-source heat pump system is high, and the operational efficiency of heat pump unit is improved.
Detailed description of the invention
Fig. 1 is that structure chart is alleviated in the accumulation of warm and humid independent control ground-source heat pump system Soil Thermal；
In figure: connection dotted line is to run summer operating mode daytime；Connection solid line represents night operation winter condition；
Fig. 2 is the structure chart of warm and humid independent control ground-source heat pump system；
Fig. 3 is the analogous diagram of warm and humid independent control ground-source heat pump system；
Fig. 4 is that unit runs 10 years soil moisture simulation results.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings.
As shown in Figure 1, the ground-source heat pump system of the warm and humid independent control of alleviation soil hot stack of the invention, including pipe laying
Heat exchanger 2, heat pump unit 1, air conditioning terminal 3, solution dehumidification device.
As shown in Fig. 2, heat pump unit 1 includes evaporator 1-1, condenser 1-2, compressor 1-3, throttle valve 1-4, evaporator
1-1 draw heat from ambient enviroment makes refrigeration machine gasify to reach refrigeration, and steam is after compressor 1-3 on temperature and pressure
It rises, discharges heat into condenser 1-2, its liquefaction is made to achieve the effect that heating, then returned by throttle valve 1-4 reducing pressure by regulating flow
Evaporator 1-1.
In the present invention, heat pump unit uses waterwater heat pump unit, and refrigerating capacity is 379kW under declared working condition, and power is
70.7kW, EER value are 5.36, and heating capacity is 389.2kW under declared working condition, and power 93.7kW, COP value is 4.15.
As shown in figure 3, buried tube heat exchanger, heat pump unit, air conditioning terminal, solution dehumidification device pass through input buried tube heat exchanger
Form parameter, thermal coefficient, the spacing of wells, depth, quantity, building by when humidity load, the specified heating of heat pump, refrigerating capacity
And the parameters such as quantity of heat pump, connected according to the flowing relation of heat, the flowing relation of quality or time start stop apparatus etc.
It connects.
Buried tube heat exchanger 2 is directly to carry out heat exchange with soil through tube wall by recirculated water in pipe, and when summer operating mode recycles
Water discharges the heat that refrigeration unit absorbs into soil, when winter condition (inverse operating condition), absorb heat from soil and passes through heat
Heat pump unit is transmitted to interior.Wherein, buried tube heat exchanger is single U-shaped pipe laying, and heat transfer coefficient is 0.512W/m ﹒ k, pipe outside diameter
32mm, bore 26mm, length 120m, managing interior circulation fluid is water, and managing interior design current velocity is 1m/s.
Heat pump unit 1 uses the constant flow water system of waterwater heat pump unit, connected load side water loops and buried tube heat exchanger
Side water loops carry out the heat transfer between loop；Solution dehumidification device uses marco composite module, according to humidity load and fresh air
Measure the heating load for determining solution system, the regeneration of the dehumidifying and solution that are mainly used in regional air.
Solution dehumidification device includes Dehumidifying element 4 and regeneration unit 5, the dehumidifying and solution being mainly used in regional air
Regeneration.Daytime, fresh air was dehumidified by solution dehumidification device, and concentrated solution becomes weak solution and is stored in NaOH solution tank NaOH at this time, night
Evening runs inverse operating condition, and heat pump unit 1 generates the regeneration that high temperature heat source is used for concentrated solution, in case following cycle uses.
Air conditioning terminal 3 acted in building by the way that chilled water is become cold wind, reduces room temperature with this.
Soil initial temperature is 17.5 DEG C, as shown in figure 4, the emulation knot obtained by warm and humid independent control ground-source heat pump system
Fruit shows: temperature of the system after operation 10 years is 0.067 DEG C of temperature drop in 17.433 DEG C, 10 years, hence it is evident that less than 3 DEG C, is being advised
Within the scope of definite limitation, which can be effectively relieved the hot stack problem in soil.
A method of alleviating the earth source heat pump of the warm and humid independent control of soil hot stack, comprising the following steps:
Step 1: by taking summer operation as an example, heat pump unit daytime runs summer operating mode, mentions to air conditioning terminal and dehumidification device
For refrigeration duty for freezing and dehumidifying, solution is thinning during this；
Step 2: night runs winter condition (i.e. against operating condition) in low rate period, and unit passes through buried tube heat exchanger absorbent earth
Extra heat in earth generates high temperature heat source for dehumidizer weak solution and is regenerated as concentrated solution, in case following cycle uses；
The description of the above specific embodiment has been done further in detail to the purpose of the present invention, summary of the invention and beneficial to benefit
It describes in detail bright.But the invention is not limited to the specific embodiment, all modification and improvement done on the basis of the present invention should all be wrapped
Containing within protection scope of the present invention.
Claims (7)
1. it is a kind of alleviate soil hot stack warm and humid independent control ground-source heat pump system, including buried tube heat exchanger, heat pump unit,
Air conditioning terminal, solution dehumidification device, it is characterised in that: the buried tube heat exchanger connects heat pump unit, and the buried tube heat exchanger is logical
Cross in pipe recirculated water and directly carry out heat exchange with soil through tube wall, the heat that recirculated water absorbs heat pump unit when summer operating mode to
It is discharged in soil, when winter condition, absorbs heat from soil and heat is transmitted to interior through heat pump unit；The solution dehumidification dress
It sets including Dehumidifying element and regeneration unit, for the regeneration of dehumidifying and solution in regional air, daytime, fresh air passed through dehumidifying
Unit dehumidifies, and concentrated solution becomes weak solution and is stored in NaOH solution tank NaOH, and night runs inverse operating condition, and heat pump unit generates high warm
Source is by regeneration unit reconstituted solution, in case following cycle uses；The heat pump unit and solution dehumidification device are separately connected
Chilled water is become cold wind by air conditioning terminal and acts in building to reduce room temperature by air conditioning terminal.
2. the ground-source heat pump system of the warm and humid independent control according to claim 1 for alleviating soil hot stack, feature exist
It include sequentially connected evaporator, compressor, condenser, throttle valve in: the heat pump unit, the evaporator is from ambient enviroment
Middle draw heat, steam temperature and pressure after compressor rise, discharge heat into condenser, its liquefaction is made to reach heating
Then effect passes through throttle valve reducing pressure by regulating flow Returning evaporimeter.
3. the ground-source heat pump system of the warm and humid independent control according to claim 1 for alleviating soil hot stack, feature exist
In: the buried tube heat exchanger is single U-shaped pipe laying.
4. the ground-source heat pump system of the warm and humid independent control according to claim 1 for alleviating soil hot stack, feature exist
In: the heat pump unit uses waterwater heat pump unit.
5. the ground-source heat pump system of the warm and humid independent control according to claim 1 for alleviating soil hot stack, feature exist
In: the solution dehumidification device is marco solution dehumidification composite module.
6. the ground-source heat pump system of the warm and humid independent control according to claim 1 for alleviating soil hot stack, feature exist
In: form parameter, the thermal coefficient of buried tube heat exchanger, the spacing of wells, depth, number are inputted in the ground-source heat pump system respectively
Amount, building by when humidity load, the number parameter of the specified heating of heat pump, refrigerating capacity and heat pump, and the flowing according to heat
Relationship, the flowing relation of quality or start-stop time control heat pump unit work.
7. a kind of method of the earth source heat pump for the warm and humid independent control for alleviating soil hot stack, using any institute of claim 1-6
The ground-source heat pump system of the warm and humid independent control for the alleviation soil hot stack stated, it is characterised in that: method includes the following steps:
Step 1: when summer operation, heat pump unit daytime runs summer operating mode, provides to air conditioning terminal and solution dehumidification device cold
Load is for freezing and dehumidifying, and solution is thinning during this；
Step 2: night runs winter condition in low rate period, and it is extra in soil that heat pump unit is absorbed by buried tube heat exchanger
Heat generates dehumidizer weak solution of the high temperature heat source in solution dehumidification device and is regenerated as concentrated solution, in case following cycle makes
With.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634592.5A CN110388765A (en) | 2019-07-15 | 2019-07-15 | Alleviate the ground-source heat pump system and method for the warm and humid independent control of soil hot stack |
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| CN201910634592.5A CN110388765A (en) | 2019-07-15 | 2019-07-15 | Alleviate the ground-source heat pump system and method for the warm and humid independent control of soil hot stack |
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| CN110388765A true CN110388765A (en) | 2019-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097382A (en) * | 2020-09-22 | 2020-12-18 | 奇瑞汽车股份有限公司 | Workshop constant temperature and humidity control method and system |
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| CN201569099U (en) * | 2009-12-30 | 2010-09-01 | 北京依科瑞德地源科技有限责任公司 | Novel air-conditioning system for top plate of capillary tube of ground source heat pump |
| CN101832607A (en) * | 2010-04-09 | 2010-09-15 | 东华大学 | Shallow rock soil energy-storing and temperature-restoring system |
| KR20120021519A (en) * | 2010-08-05 | 2012-03-09 | 장용기 | Low temp hot water air conditioning & generating system |
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2019
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Patent Citations (4)
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| CN201488147U (en) * | 2009-08-31 | 2010-05-26 | 浙江省建筑科学设计研究院有限公司 | Humidity and temperature independent control system combining ground source heat pump with solution dehumidification |
| CN201569099U (en) * | 2009-12-30 | 2010-09-01 | 北京依科瑞德地源科技有限责任公司 | Novel air-conditioning system for top plate of capillary tube of ground source heat pump |
| CN101832607A (en) * | 2010-04-09 | 2010-09-15 | 东华大学 | Shallow rock soil energy-storing and temperature-restoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097382A (en) * | 2020-09-22 | 2020-12-18 | 奇瑞汽车股份有限公司 | Workshop constant temperature and humidity control method and system |
| CN112097382B (en) * | 2020-09-22 | 2023-12-22 | 奇瑞汽车股份有限公司 | Workshop constant temperature and humidity control method and system |
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