CN102444945A - Ground source heat pump air conditioning plant used for supplying warm and cool based on radiation - Google Patents
Ground source heat pump air conditioning plant used for supplying warm and cool based on radiation Download PDFInfo
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- CN102444945A CN102444945A CN2011103799525A CN201110379952A CN102444945A CN 102444945 A CN102444945 A CN 102444945A CN 2011103799525 A CN2011103799525 A CN 2011103799525A CN 201110379952 A CN201110379952 A CN 201110379952A CN 102444945 A CN102444945 A CN 102444945A
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Abstract
The invention relates to a ground source heat pump air conditioning plant used for supplying warm and cool based on radiation and can realize the refrigeration operation of a ground source heat pump in a high efficiency, ground source water is fully utilized to supply cool indoor at the same time, and meanwhile, the problems of dewing caused by cool supply through radiation, the slow start-up, long preheating time, the complicated control and the like of a floor/a top plate, can be solved. The air conditioning plant comprises a ground source water loop, heat pump sets and a cooling/warming loop; when the air conditioning plant produces chilled water on the heat pump sets and the cooling/warming loop, a small temperature difference heat exchanger (8), a second heat pump set (7) and a first heat pump set (6) can realize series operation, and the temperature of the chilled water is reduced in a subsection manner; when the air conditioning plant produces heat supplying water, and series operation or parallel operation of the second heat pump set (7) and the first heat pump set (6) are realized.
Description
Technical field
The present invention relates to a kind ofly, utilize the geothermal heat pump air-conditioning system of the indoor cooling of floor/top board radiation direction heating, the technical field that belongs to the refrigerated air-conditioning system design and make based on earth source heat pump.
Background technology
Along with the continuous quickening of urbanization process, and the raising gradually of people's living standard, building energy consumption has accounted for more than 30% of whole society's energy wastage in bulk or weight, and increases rapidly.And in building energy consumed, the air-conditioning system energy consumption of using for raising architecture indoor comfortableness accounted for more than 50% of total building energy consumption again.Therefore reduce the air conditioning system energy consumption to alleviating energy shortage, realize that energy-saving and emission-reduction are significant.
Earth source heat pump is originated as cold and hot amount with underground, and lower condensation temperature is arranged when making heat pump refrigerating, has higher evaporating temperature when heating, thereby makes earth source heat pump have higher refrigeration, heating efficiency.The water source of lower temperature also provides possibility for directly it being supplied with architecture indoor as low-temperature receiver at transition season simultaneously.But earth-source hot-pump system exists in and guarantees that heat pump efficiently moves simultaneously, realizes efficiently utilizing water source directly to the difficult problem of indoor cooling again.
Floor/top board radiation cooling heating system is good, the energy-conservation cooling heating system of a kind of comfortableness; But floor radiant cooling is because exist the floor condensation trouble; Need to increase extra device (like placement ventilation device etc.); Make system complex, initial cost use greatly and than difficult, current floor/top board radiation is mainly used in heating.There are deficiencies such as startup is slow, precooling (heat) time is long in conventional simultaneously floor radiant cooling heating installation.
Therefore; Make full use of water source when how to realize earth-source hot-pump system high efficiency refrigerating operaton again directly to indoor cooling; Solve simultaneously floor/top board radiation cooling dewfall again and start slow, problems such as preheating time is long, control complicacy, designing efficiently, the warm geothermal heat pump air-conditioning system of radiation cooling becomes the technical barrier that those skilled in the art press for solution.
Summary of the invention
Technical problem:Make full use of water source when the objective of the invention is to realize earth-source hot-pump system high efficiency refrigerating operaton again directly to indoor cooling; Solve simultaneously floor/top board radiation cooling dewfall again and start slow, problems such as preheating time is long, control complicacy, design the warm earth source heat pump air conditioner of radiation cooling efficiently.
Technical scheme:The present invention is based on the warm earth source heat pump air conditioner of radiation cooling and comprise water source loop, source pump and cooling heating loop.The water source loop comprises underground heat exchange coil pipe, first water pump, first magnetic valve, second magnetic valve, the 3rd magnetic valve, first source pump, second source pump and little temperature difference heat exchanger and relevant connection pipeline thereof.The outlet of underground heat exchange coil pipe divides three the tunnel; First magnetic valve of leading up to connects the first input end of little temperature difference heat exchanger; Second magnetic valve of leading up to connects the second source pump first input end; The 3rd magnetic valve of leading up in addition connects the first input end of first source pump; First output of first output of little temperature difference heat exchanger, first output of second source pump and first source pump all links to each other with the input of first water pump, the import of heat exchange coil under the output head grounding of first water pump; The warm loop of source pump and cooling comprises first source pump, second source pump, little temperature difference heat exchanger, the 4th magnetic valve; The 5th magnetic valve, the 6th magnetic valve, the 7th magnetic valve, the 8th magnetic valve; The 9th magnetic valve, the tenth magnetic valve, the 11 magnetic valve, electric three passes control valve; The dehumidification type surface cooler, floor/top board radiation cooling heating system, second water pump and relevant connection pipeline thereof are formed.The outlet of second water pump is divided into two-way; The 4th magnetic valve of leading up to connects little temperature difference heat exchanger second input; Lead up in addition and be divided into two-way again after the 5th magnetic valve and little temperature difference heat exchanger second output merge; The 6th magnetic valve of leading up to connects second source pump, second input; Other one the tunnel through being divided into two-way again behind the 7th magnetic valve, the tenth magnetic valve of wherein leading up to connects second input of first source pump, leads up to the input that connects the electric three passes control valve after second output of the 11 magnetic valve and first source pump merges in addition; Second output of second source pump is divided into two-way simultaneously; Second input of the 9th magnetic valve and first source pump of leading up to joins, and the 8th magnetic valve of leading up in addition also links to each other with the input of electric three passes control valve, the input of the first output termination dehumidification type surface cooler of electric three passes control valve; Second output of electric three passes control valve and the output of dehumidification type surface cooler merge the input of back earth plate/top board radiation cooling/heating system, the inlet of output termination second water pump of floor/top board radiation cooling/heating system.
Apparatus of the present invention comprise water source loop, source pump and cooling heating loop.Can realize four kinds of operational modes: " freely " cooling pattern, associating cooling pattern, the independent cooling pattern of source pump, heating mode.
Under " freely " cooling pattern, second magnetic valve, the 3rd closed electromagnetic valve in the water source loop, first source pump and second heat pump are not worked; This moment, water source got into little temperature difference heat exchanger through first magnetic valve after the underground heat exchange coil pipe flows out, and water source absorbs heat in little temperature difference heat exchanger, after temperature raises; Flow out from little temperature difference heat exchanger; Get into the inlet of first water pump, got into the underground heat exchange coil pipe by first water pump pressurization back, therein with the underground heat exchange; Water source is emitted heat, and temperature flows out from the underground heat exchange coil pipe after reducing once more; The 5th magnetic valve, the 6th magnetic valve, the 8th magnetic valve, the 9th magnetic valve, the tenth closed electromagnetic valve in source pump and the cooling heating loop, the 4th electromagnetism, the 7th magnetic valve, the 11 magnetic valve are opened, and this moment, chilled water got into little temperature difference heat exchanger through the 4th magnetic valve after second water pump flows out; Chilled water therein with the water source heat exchange, chilled water temperature reduces the back and comes out from little temperature difference heat exchanger, behind the 7th magnetic valve, the 11 magnetic valve; Get into the electric three passes control valve, in the electric three passes control valve, be divided into two-way; One the tunnel gets into the dehumidification type surface cooler; In the dehumidification type surface cooler, cool off air, and remove part moisture in the air, outflow mixes back entering floor/top board radiation cooling/heating system with other one the tunnel then; Chilled water carries out radiation heat transfer therein; After raising, temperature flows out floor/top board radiation cooling/heating system, after second water pump suction pressurization, and circulation once more.
Under associating cooling pattern; First magnetic valve, second magnetic valve, the 3rd magnetic valve are all opened in the water source loop; This moment, water source got into little temperature difference heat exchanger from being divided into three the tunnel, the one tunnel after the underground heat exchange coil pipe flows out through first magnetic valve, and water source absorbs heat in little temperature difference heat exchanger; After temperature raises, flow out from little temperature difference heat exchanger; One the tunnel gets into second source pump through second magnetic valve, and water source is the cooling refrigeration agent in unit, absorbs heat, and flow out from unit the temperature back that raises; Other one the tunnel gets into first source pump through the 3rd magnetic valve, water source in unit with the cold-producing medium heat exchange, absorb heat, flow out from unit the temperature back that raises; Three road water sources flow out the back and mix common first water pump that gets into, and pressurized back gets into underground heat exchange coil pipe and underground heat exchange, and water source is emitted heat, and temperature flows out from the underground heat exchange coil pipe after reducing once more; The 5th magnetic valve, the 7th magnetic valve, the 8th magnetic valve, the tenth magnetic valve, the 11 closed electromagnetic valve in source pump and the cooling heating loop, the 4th magnetic valve, the 6th magnetic valve, the 9th magnetic valve are opened, and this moment, chilled water got into little temperature difference heat exchanger through the 4th magnetic valve after second water pump flows out; With the water source heat exchange, chilled water temperature reduces the back and comes out from little temperature difference heat exchanger, gets into second source pump through the 6th magnetic valve therein; Chilled water in heat pump with the cold-producing medium heat exchange, get into first source pump through the 9th magnetic valve after temperature reduces, chilled water therein once more with the cold-producing medium heat exchange; Temperature further reduces the back and flows out first source pump, gets into the electric three passes control valve, in the electric three passes control valve; Be divided into two-way, the one tunnel gets into dehumidification type surface cooler, air heat exchange therein; Remove the water in air branch; Flow out then with other one the tunnel and mix back entering floor/top board radiation cooling/heating system, chilled water carries out radiation heat transfer therein, flows out floor/top board radiation cooling/heating system after temperature raises; After second water pump suction pressurization, circulation once more.If air-conditioning system load hour; Only move second source pump in source pump and the cooling heating loop this moment, the 9th closed electromagnetic valve, and the 8th magnetic valve is opened; After then chilled water flows out from second source pump; Without the 9th magnetic valve, but directly get into the electric three passes control valve from the 8th magnetic valve, all the other are all constant.
Under the independent cooling pattern of source pump; First closed electromagnetic valve in the water source loop, second magnetic valve, the 3rd magnetic valve are opened, and this moment, water source was divided into two the tunnel after the underground heat exchange coil pipe flows out; One the tunnel gets into second source pump through second magnetic valve; Water source is the cooling refrigeration agent in unit, absorbs heat, and temperature flows out from unit after raising; Other one the tunnel gets into first source pump through the 3rd magnetic valve, water source in unit with the cold-producing medium heat exchange, absorb heat, flow out from unit the temperature back that raises; Two road water sources flow out the back and mix common first water pump that gets into, and pressurized back gets into underground heat exchange coil pipe and underground heat exchange, and water source is emitted heat, and temperature flows out from the underground heat exchange coil pipe after reducing once more; The 4th magnetic valve, the 7th magnetic valve, the 8th magnetic valve, the tenth magnetic valve, the 11 closed electromagnetic valve in source pump and the cooling heating loop, the 5th magnetic valve, the 6th magnetic valve, the 9th magnetic valve are opened, and this moment, chilled water got into second source pump through the 5th magnetic valve, the 6th magnetic valve after second water pump flows out; Chilled water in heat pump with the cold-producing medium heat exchange, get into first source pump through the 9th magnetic valve after temperature reduces, chilled water in first source pump with the cold-producing medium heat exchange; Temperature further reduces the back and flows out first source pump, gets into the electric three passes control valve, in the electric three passes control valve; Be divided into two-way, the one tunnel gets into dehumidification type surface cooler, air heat exchange therein; Remove the water in air branch, realize dehumidifying, outflow mixes back entering floor/top board radiation cooling/heating system with other one the tunnel then; Chilled water carries out radiation heat transfer therein; After raising, temperature flows out floor/top board radiation cooling/heating system, after second water pump suction pressurization, and circulation once more.
Under heating mode; First closed electromagnetic valve in the water source loop, second magnetic valve, the 3rd magnetic valve are opened, and this moment, water source was divided into two the tunnel after the underground heat exchange coil pipe flows out; One the tunnel gets into second source pump through second magnetic valve; Water source in unit with the cold-producing medium heat exchange, emit heat, temperature reduces the back and flows out from unit; Other one the tunnel gets into first source pump through the 3rd magnetic valve, water source in unit with the cold-producing medium heat exchange, emit heat, temperature reduces the back and flows out from unit; Two road water sources flow out the back and mix common first water pump that gets into, and pressurized back gets into underground heat exchange coil pipe and underground heat exchange, and water source absorbs heat, and temperature flows out from the underground heat exchange coil pipe after raising once more; The 4th magnetic valve, the 7th magnetic valve, the 8th magnetic valve, the tenth magnetic valve, the 11 closed electromagnetic valve in source pump and the cooling heating loop, the 5th magnetic valve, the 6th magnetic valve, the 9th magnetic valve are opened, and heat supply this moment water gets into second source pump through the 5th magnetic valve, the 6th magnetic valve after second water pump flows out; Heat supply water in heat pump with the cold-producing medium heat exchange, the temperature back that raises is flowed out from second source pump and is got into first source pump through the 9th magnetic valve, heat supply water in first source pump with the cold-producing medium heat exchange; Flow out first source pump after temperature further raises, get into the electric three passes control valve, in the electric three passes valve regulation; Be divided into two-way, the one tunnel gets into the dehumidification type surface cooler, and this moment, surface cooler played the shortening start-up course; Quicken the stable effect of room temperature, heat is emitted in the air heat exchange therein of heat supply water; After the heat supply coolant-temperature gage reduces; Flow out then with other one the tunnel and mix back entering floor/top board radiation cooling/heating system, heat supply water carries out radiation heat transfer therein, and temperature reduces the back and flows out floor/top board radiation cooling/heating system; After second water pump suction pressurization, circulation once more.
When building needed cooling, the selection of geothermal heat pump air-conditioning system operational mode was according to being: the size according to humidity load in the size of building air conditioning load and the air conditioner load is judged.Because the characteristics of water source temperature, its direct cooling ability and dehumidifying effect own are less.Because, when building air conditioning load less and humidity load hour, operation " freely " cooling pattern; Little when building air conditioning load, but humidity load is when big, operation associating cooling pattern, and at this moment, water source is born most of refrigeration duty, and source pump is born all the other refrigeration dutys and humidity load thereof; When building air conditioning is loaded bigger; And when humidity load is big; The independent cooling pattern of operating heat pump unit because this moment, water source will be born distributing of a large amount of condenser heats of source pump, causes the temperature of water source when the underground heat exchange coil pipe comes out to be elevated to the effect that does not have the cooling room air.It is thus clear that this device can be realized making full use of of water source cold, thereby improve the efficient of whole air-conditioning system.
Simultaneously, the present invention is realized the series connection of chilled water is handled by two units when refrigeration; Be equivalent to chilled water endways (surface cooler, radiation cooling system) caused temperature rise (10 ℃ of temperature rises are arranged such as chilled water; From 7 ℃ to 17 ℃), handle (such as first unit chilled water is reduced to 12 ℃ from 17 ℃, an other unit is reduced to 7 ℃ from 12 ℃) jointly by two heat pumps; Thereby realize that first unit can be with higher evaporating temperature operation; Unit COP is greatly enhanced, thereby the efficient of whole air-conditioning system is improved, realize energy-conservation.Same principle, when this air-conditioning system heating operation, the also raising of feasible system heating efficiency.All has higher efficient when being this device cooling and warming.
Beneficial effect:The present invention relates to a kind ofly, utilize the geothermal heat pump air-conditioning system of the indoor cooling of floor/top board radiation direction heating, have following characteristics based on earth source heat pump:
1, the present invention can fully realize the direct application of water source cold through the various modes operation, thereby improves the efficiency of air-conditioning system, realizes energy-conservation.
Through little temperature difference heat exchanger, first source pump, second source pump, realize that the series connection of chilled water temperature is handled when 2, the present invention is freezed, make source pump to move, thereby further improved the efficient of air-conditioning system with higher evaporating temperature.
3, during heating operation of the present invention through first source pump, second source pump, realize that the series connection of heat supply coolant-temperature gage is handled, make wherein the source pump can be, thereby improved the whole efficient of air-conditioning system with lower condensation temperature operation.
4, the present invention takes the dehumidification type surface cooler, can bear the air humidity load in summer and handle, and prevents floor/top board dewfall, accelerates indoorly in cooling or the indoor precooling (heat) of heating initial stage simultaneously, remedies flooring radiation and starts slower shortcoming.
Description of drawings
Fig. 1 is the geothermal heat pump air-conditioning system sketch map that the present invention is based on the radiation cooling heating.
Have among Fig. 1: underground heat exchange coil pipe 1; First water pump 2; First magnetic valve 3; Second magnetic valve 4; The 3rd magnetic valve 5; First source pump 6; The first source pump first input end 6a; First source pump, the first output 6b; First source pump, the second input 6c; First source pump, the second output 6d; Second source pump 7; The second source pump first input end 7a; Second source pump, the first output 7b; Second source pump, the second input 7c; Second source pump, the second output 7d; Little temperature difference heat exchanger 8; Little temperature difference heat exchanger first input end 8a; The little temperature difference heat exchanger first output 8b; The little temperature difference heat exchanger second input 8c; The little temperature difference heat exchanger second output 8d; The 4th magnetic valve 9; The 5th magnetic valve 10; The 6th magnetic valve 11; The 7th magnetic valve 12; The 8th magnetic valve 13; The 9th magnetic valve 14; The tenth magnetic valve 15; The 11 magnetic valve 16; Electric three passes control valve 17; Dehumidification type surface cooler 18; Floor/top board radiation cooling/heating system 19; Second water pump 20.
The specific embodiment
Further specify the specific embodiment of the present invention in conjunction with accompanying drawing 1: the present invention is based on the warm earth source heat pump air conditioner of radiation cooling and comprise water source loop, source pump and cooling heating loop.Concrete connected mode is: the outlet of underground heat exchange coil pipe 1 divides three the tunnel; First magnetic valve 3 of leading up to meets little temperature difference heat exchanger first input end 8a; Second magnetic valve 4 of leading up to meets the second source pump first input end 7a; The 3rd magnetic valve 5 of leading up in addition meets the first source pump first input end 6a; The first output 6b of the first output 8b of little temperature difference heat exchanger, the first output 7b of second source pump and first source pump links to each other the import of heat exchange coil 1 under the output head grounding of first water pump 2 with the input of first water pump 2; The outlet of second water pump 20 is divided into two-way; The 4th magnetic valve 9 of leading up to meets the little temperature difference heat exchanger second input 8c; Lead up in addition and be divided into two-way again after the 5th magnetic valve 10 merges with the little temperature difference heat exchanger second output 8d; The 6th magnetic valve 11 of leading up to meets second source pump, the second input 7c; Lead up in addition and be divided into two-way again behind the 7th magnetic valve 12; The tenth magnetic valve 15 of leading up to meets the second input 6c of first source pump; Lead up to the input 17a that connects electric three passes control valve 17 after the second output 6d of the 11 magnetic valve 16 and first source pump merges in addition, the second output 7d of second source pump 7 is divided into two-way simultaneously, and the second input 6c of the 9th magnetic valve 14 and first source pump of leading up to joins; The 8th magnetic valve 13 of leading up in addition also links to each other with the input 17a of electric three passes control valve; The first output 17b of electric three passes control valve connects the input of dehumidification type surface cooler 18, and the second output 17c of electric three passes control valve and the output of dehumidification type surface cooler 18 merge the input of back earth plate/top board radiation cooling/heating system 19, the inlet of output termination second water pump 20 of floor/top board radiation cooling/heating system 19.
During operation " freely " cooling pattern, second magnetic valve 4, the 3rd magnetic valve 5 are closed in the water source loop, and first source pump 6 and second source pump 7 are not worked; This moment, water source got into little temperature difference heat exchanger 8 through first magnetic valve 3 by little temperature difference heat exchanger first input end 8a after underground heat exchange coil pipe 1 flows out, and water source absorbs heat in little temperature difference heat exchanger 8, after temperature raises; Flow out from the little temperature difference heat exchanger first output 8b; Get into the inlet of first water pump 2, got into underground heat exchange coil pipe 1 by first water pump, 2 pressurization backs, wherein with the underground heat exchange; Water source is emitted heat, flows out from underground heat exchange coil pipe 1 once more after temperature reduces; The 5th magnetic valve 10 in source pump and the cooling heating loop, the 6th magnetic valve 11, the 8th magnetic valve 13, the 9th magnetic valve 14, the tenth magnetic valve 15 are closed, and the 4th magnetic valve 9, the 7th magnetic valve the 12, the 11 magnetic valve 16 are opened, and this moment, chilled water got into the little temperature difference heat exchanger second input 8c through the 4th magnetic valve 9 after second water pump 20 flows out; Chilled water in little temperature difference heat exchanger 8 with the water source heat exchange; Chilled water temperature reduces the back and flows out from the little temperature difference heat exchanger second output 8d, behind the 7th magnetic valve the 12, the 11 magnetic valve 16, gets into electric three passes control valve input 17a; In the electric three passes control valve; Be divided into two-way, the one road from electric three passes control valve first output 17b entering dehumidification type surface cooler 18, cools off air therein; And remove part moisture in the air; Flow out then with other one road chilled water from electric three passes control valve 17c outflow and mix back entering floor/top board radiation cooling/heating system 19, chilled water carries out radiation heat transfer therein, temperature rising back outflow floor/top board radiation cooling/heating system 19; After the 20 suction pressurizations of second water pump, circulation once more.
During operation associating cooling pattern; First magnetic valve 3 in the water source loop, second magnetic valve 4, the 3rd magnetic valve 5 are all opened; This moment, water source got into little temperature difference heat exchanger 8 through first magnetic valve 3 by little temperature difference heat exchanger first input end 8a from being divided into three the tunnel, the one tunnel after underground heat exchange coil pipe 1 flows out, and water source absorbs heat in little temperature difference heat exchanger 8; After temperature raises, flow out from the little temperature difference heat exchanger first output 8b; One the tunnel gets into second source pump 7 through second magnetic valve 4 by the second source pump first input end 7a, and water source is the cooling refrigeration agent in unit, absorbs heat, and temperature raises the back by flowing out among second heat pump, the first output 7b; Other one the tunnel gets into first source pump 6 through the 3rd magnetic valve 5 by the first source pump first input end 6a, water source in unit with the cold-producing medium heat exchange, absorb heat, temperature raises the back by flowing out among first heat pump, the first output 6b; Three road water sources flow out the back and mix common first water pump 2 that gets into, and pressurized back gets into underground heat exchange coil pipe 1 and underground heat exchange, and water source is emitted heat, flows out from underground heat exchange coil pipe 1 once more after temperature reduces; The 5th magnetic valve 10 in source pump and the cooling heating loop, the 7th magnetic valve 12, the 8th magnetic valve 13, the tenth magnetic valve the 15, the 11 magnetic valve 16 are closed, and the 4th magnetic valve 9, the 6th magnetic valve 11, the 9th magnetic valve 14 are opened, and this moment, chilled water got into little temperature difference heat exchanger 8 through the 4th magnetic valve 9 by the little temperature difference heat exchanger second input 8c after second water pump 20 flows out; With the water source heat exchange, chilled water temperature reduces the back and is flowed out by the little temperature difference heat exchanger second output 8d, gets into second source pump 7 through the 6th magnetic valve 11 by second source pump, the second input 7c therein; Chilled water therein with the cold-producing medium heat exchange, get into first source pump 6 through the 9th magnetic valve 14 by first source pump, the second input 6c after temperature reduces, chilled water therein once more with the cold-producing medium heat exchange; Temperature further reduces the back and is flowed out by first source pump, the second output 6d; Get into electric three passes control valve 17, in electric three passes control valve 17, be divided into two-way; One the tunnel gets into dehumidification type surface cooler 18; With the air heat exchange, remove the water in air branch therein, outflow mixes back entering floor/top board radiation cooling/heating system 19 with other one the tunnel then; Chilled water carries out radiation heat transfer therein; After raising, temperature flows out floor/top board radiation cooling/heating system 19, after the 20 suction pressurizations of second water pump, and circulation once more.If air-conditioning system load hour; Only move second source pump, 7, the nine magnetic valves 14 in source pump and the cooling heating loop and close this moment, and the 8th magnetic valve 13 is opened; After then chilled water flows out from second source pump, the second output 7d; Without the 9th magnetic valve 14, directly get into electric three passes control valve 17 from the 8th magnetic valve 13, all the other are all constant.
During the independent cooling pattern of operating heat pump unit; First magnetic valve 3 cuts out in the water source loop, and second magnetic valve 4, the 3rd magnetic valve 5 are opened, and this moment, water source was divided into two the tunnel after underground heat exchange coil pipe 1 flows out; One the tunnel gets into second source pump 7 through second magnetic valve 4 by the second source pump first input end 7a; Water source in unit with the cold-producing medium heat exchange, absorb heat, the temperature back that raises is flowed out by second unit, first output; Other one the tunnel gets into first source pump 6 through the 3rd magnetic valve 5 by the first heat pump input 6a, water source in unit with the cold-producing medium heat exchange, absorb heat, the temperature back that raises is flowed out by first source pump, the first output 6b; Two road water sources flow out the back and mix common first water pump 2 that gets into, and pressurized back gets into underground heat exchange coil pipe 1 and underground heat exchange, and water source is emitted heat, flows out from underground heat exchange coil pipe 1 once more after temperature reduces; The 4th magnetic valve 9 in source pump and the cooling heating loop, the 7th magnetic valve 12, the 8th magnetic valve 13, the tenth magnetic valve the 15, the 11 magnetic valve 16 are closed; The 5th magnetic valve 10, the 6th magnetic valve 11, the 9th magnetic valve 14 are opened, and get into second source pump 7 through the 5th magnetic valve 10, the 6th magnetic valve 11 by second source pump, the second input 7c after this moment, chilled water flowed out from second water pump 20, chilled water in unit with the cold-producing medium heat exchange; Temperature reduces the back and is flowed out by second unit, the second output 7d; Get into first source pump 6 through the 9th magnetic valve 14 by first source pump, the second input 6c, chilled water in first source pump 6 with the cold-producing medium heat exchange, temperature further reduce the back flow out by first source pump, the second output 6d; Be divided into two-way after getting into electric three passes control valve 17; One route electric three passes control valve, the first output 17b gets into dehumidification type surface cooler 18, with the air heat exchange, removes the water in air branch therein; Realize dehumidifying; Flow out chilled water that dehumidification type surface cooler 18 and other a road flows out from the electric three passes control valve second output 17c then and mixes the back and get into floor/top board radiation cooling/heating system 19, chilled water carries out radiation heat transfer therein, the temperature back outflow floor/top board radiation cooling/heating system 19 that raises; After the 20 suction pressurizations of second water pump, circulation once more.
During the operation heating mode; First magnetic valve 3 cuts out in the water source loop, and second magnetic valve 4, the 3rd magnetic valve 5 are opened, and this moment, water source was divided into two the tunnel after underground heat exchange coil pipe 1 flows out; One the tunnel gets into second source pump 7 through second magnetic valve 3 by the second source pump first input end 7a; Water source therein with the cold-producing medium heat exchange, emit heat, temperature reduces the back and is flowed out by second source pump, the first output 7b; Other one the tunnel gets into first source pump 6 through the 3rd magnetic valve 5 by the first source pump first input end 6a, water source therein with the cold-producing medium heat exchange, emit heat, temperature reduces the back and is flowed out by first source pump, the first output 6b; Two road water sources flow out the back and mix common first water pump 2 that gets into, and pressurized back gets into underground heat exchange coil pipe 1 and underground heat exchange, and water source absorbs heat, flows out from underground heat exchange coil pipe 1 once more after temperature raises; The 4th magnetic valve 9 in source pump and the cooling heating loop, the 7th magnetic valve 12, the 8th magnetic valve 13, the tenth magnetic valve the 15, the 11 magnetic valve 16 are closed; The 5th magnetic valve 10, the 6th magnetic valve 11, the 9th magnetic valve 14 are opened; Got into second source pump 7 through the 5th magnetic valve 10, the 6th magnetic valve 11 by second source pump, the second input 7c after this moment, heat supply water flowed out from second water pump 20, heat supply water therein with the cold-producing medium heat exchange, the temperature back that raises is flowed out by second source pump, the second output 7d; Get into first source pump 6 through the 9th magnetic valve 14 by first source pump, the second input 6c; Heat supply water therein with the cold-producing medium heat exchange, the temperature back that further raises is flowed out by first source pump, the second output 6d, is divided into two-way after getting into electric three passes control valve 17; One route electric three passes control valve, the first output 17b gets into dehumidification type surface cooler 18; This moment, the dehumidification type surface cooler 18 played the shortening start-up course, quickened the stable effect of room temperature, heat supply water therein with the air heat exchange; Temperature reduces; Flow out dehumidification type surface cooler 18 then and mix back entering floor/top board radiation cooling/heating system 19 with the heat supply water that an other route electric three passes control valve second output 17c flows out, heat supply water carries out radiation heat transfer therein, and temperature reduces the back and flows out floor/top board radiation cooling/heating system 19; After the 20 suction pressurizations of second water pump, circulation once more.
Claims (6)
1. an earth source heat pump air conditioner that warms up based on radiation cooling is characterized in that this device comprises water source loop, source pump and cooling/warm loop; In the water source loop; The outlet of underground heat exchange coil pipe (1) divides three the tunnel; First magnetic valve (3) of leading up to connects little temperature difference heat exchanger first input end (8a); Second magnetic valve (4) of leading up to connects the second source pump first input end (7a); The 3rd magnetic valve (5) of leading up in addition connects the first source pump first input end (6a), and little temperature difference heat exchanger first output (8b), second source pump, first output (7b) and first source pump, first output (6b) all link to each other with the input of first water pump (2), the import of heat exchange coil (1) under the output head grounding of first water pump (2); In source pump and cooling/warm loop; The outlet of second water pump (20) is divided into two-way; The 4th magnetic valve (9) of leading up to connects little temperature difference heat exchanger second input (8c); Lead up in addition and be divided into two-way again after the 5th magnetic valve (10) merges with little temperature difference heat exchanger second output (8d); The 6th magnetic valve (11) of leading up to connects second source pump, second input (7c); Lead up in addition and be divided into two-way again behind the 7th magnetic valve (12); The tenth magnetic valve (15) of leading up to connects first source pump, second input (6c); Lead up in addition and connect electric three passes control valve input (17a) after the 11 magnetic valve (16) and first source pump, second output (6d) merge, second source pump, second output (7d) is divided into two-way simultaneously, and the 9th magnetic valve (14) of leading up to joins with first source pump, second input (6c); The 8th magnetic valve (13) of leading up in addition also links to each other with electric three passes control valve input (17a); Electric three passes control valve first output (17b) connects dehumidification type surface cooler (18) input, the input of earth plate/top board radiation cooling/heating system (19) after second output (17c) of electric three passes control valve merges with dehumidification type surface cooler (18) output, the inlet of output termination second water pump (20) of floor/top board radiation cooling/heating system (19).
2. according to claim 1 based on the warm earth source heat pump air conditioner of radiation cooling; It is characterized in that on source pump and cooling/warm loop; When producing chilled water; Little temperature difference heat exchanger (8) can be realized series operation with second source pump (7), first source pump (6), and segmentation reduces the temperature of chilled water.
3. according to claim 1 based on the warm earth source heat pump air conditioner of radiation cooling, it is characterized in that on source pump and cooling/warm loop, when producing heat supply water, second source pump (7) and (6) series operation of first source pump or parallel running.
4. according to claim 1 based on the warm earth source heat pump air conditioner of radiation cooling; It is characterized in that dehumidification type surface cooler (18) is installed in the indoor fan coil pipe in the device; Or be installed in the new wind treatment facility; Humidity load in the decontamination chamber in the time of all can reaching refrigeration, the purpose that shortens start-up time when heating.
5. according to claim 1 based on the warm earth source heat pump air conditioner of radiation cooling, it is characterized in that the source pump of first source pump (6) for realizing that varying capacity is regulated, second source pump (7) is the adjustable source pump of chilled water leaving water temperature.
6. according to claim 1 based on the warm earth source heat pump air conditioner of radiation cooling, it is characterized in that little temperature difference heat exchanger adopts plate type heat exchanger or double pipe heat exchanger.
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| CN 201110379952 CN102444945B (en) | 2011-11-25 | 2011-11-25 | Ground source heat pump air conditioning plant used for supplying warm and cool based on radiation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110379952 CN102444945B (en) | 2011-11-25 | 2011-11-25 | Ground source heat pump air conditioning plant used for supplying warm and cool based on radiation |
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| CN102444945A true CN102444945A (en) | 2012-05-09 |
| CN102444945B CN102444945B (en) | 2013-07-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102644983A (en) * | 2012-05-18 | 2012-08-22 | 苏州市时代工程咨询设计管理有限公司 | Ground-source heat pump system |
| CN105135639A (en) * | 2015-09-24 | 2015-12-09 | 宝莲华新能源技术（上海）有限公司 | Energy-saving control system for ground source heat pump multi-air-conditioning units |
| CN108592269A (en) * | 2018-05-22 | 2018-09-28 | 福建工程学院 | A kind of natural cooling and heating source comprehensive utilization air-conditioning system and control method |
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| CN201531964U (en) * | 2009-11-20 | 2010-07-21 | 上海建冶科技工程股份有限公司 | Water circulation ground-source air-conditioning system |
| CN202432618U (en) * | 2011-11-25 | 2012-09-12 | 东南大学 | Ground source heat pump air conditioning device realizing graded treatment |
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| CN101025313A (en) * | 2007-03-30 | 2007-08-29 | 东南大学 | Multifunction geothermal-energy heat pump radiation air-conditioner and water heating system |
| JP2009168255A (en) * | 2008-01-10 | 2009-07-30 | Kimura Kohki Co Ltd | Water heat source heat pump air conditioning system |
| CN201531964U (en) * | 2009-11-20 | 2010-07-21 | 上海建冶科技工程股份有限公司 | Water circulation ground-source air-conditioning system |
| CN202432618U (en) * | 2011-11-25 | 2012-09-12 | 东南大学 | Ground source heat pump air conditioning device realizing graded treatment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102644983A (en) * | 2012-05-18 | 2012-08-22 | 苏州市时代工程咨询设计管理有限公司 | Ground-source heat pump system |
| CN105135639A (en) * | 2015-09-24 | 2015-12-09 | 宝莲华新能源技术（上海）有限公司 | Energy-saving control system for ground source heat pump multi-air-conditioning units |
| CN108592269A (en) * | 2018-05-22 | 2018-09-28 | 福建工程学院 | A kind of natural cooling and heating source comprehensive utilization air-conditioning system and control method |
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| CN102444945B (en) | 2013-07-31 |
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