CN104713261A - Cascade ground source heat pump and use method thereof - Google Patents

Cascade ground source heat pump and use method thereof Download PDF

Info

Publication number
CN104713261A
CN104713261A CN201510121182.2A CN201510121182A CN104713261A CN 104713261 A CN104713261 A CN 104713261A CN 201510121182 A CN201510121182 A CN 201510121182A CN 104713261 A CN104713261 A CN 104713261A
Authority
CN
China
Prior art keywords
temperature
heat pump
temperature level
low
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510121182.2A
Other languages
Chinese (zh)
Inventor
李艳娇
张兴科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cold New Energy Technology Co Ltd In Shenyang One
Original Assignee
Cold New Energy Technology Co Ltd In Shenyang One
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cold New Energy Technology Co Ltd In Shenyang One filed Critical Cold New Energy Technology Co Ltd In Shenyang One
Priority to CN201510121182.2A priority Critical patent/CN104713261A/en
Publication of CN104713261A publication Critical patent/CN104713261A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B7/00Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying

Abstract

The invention particularly provides a cascade ground source heat pump. The cascade ground source heat pump comprises a primary heat pump body, a secondary heat pump body and a cascade condenser. The primary heat pump body and the secondary heat pump body are connected through the cascade condenser. The primary heat pump body comprises a ground source water pipe, a primary circulation pipeline, a low-temperature-stage compressor, a low-temperature-stage evaporator and a low-temperature-stage liquid storage device. The secondary heat pump body comprises a hot water pipe, a secondary circulation pipeline, a high-temperature-stage compressor, a high-temperature-stage evaporator and a high-temperature-stage liquid storage device. The energy efficiency ratio of large-temperature-difference heat pump circulation is increased, the supply water temperature reaches above 70 DEG C in normal operation, and the energy efficiency ratio reaches above 2.8. The heat source side is identical with a common water source heat pump, and therefore a common underground water source can be utilized. Low-grade heat resources like the underground water source can be directly utilized for making high-temperature hot water with the temperature above 70 DEG C, and the highest water temperature can reach 90 DEG C. The cascade ground source heat pump is mainly applied to hotels, restaurants, factories, petroleum and petrochemical systems, the heat supply industry and the food and medicine processing industry where high-temperature hot water is needed.

Description

Superposition type earth source heat pump and using method thereof
Technical field
The invention belongs to machine design and manufacture field, specifically provide a kind of superposition type earth source heat pump and using method thereof of high-efficiency environment friendly.
Background technology
Along with China deepens continuously with reforming and opening up to the outside world, greatly develop secondary industry, energy resource consumption day by day increases.While economic development, problem of environmental pollution common people critical concern problem.Particularly the 14 " NPC and CPPCC ", environmental issue has exceeded the problem such as house, education, and common people's concern rate is arranged into the first five position.But in northern China, remain a great problem for the energy resource consumption of heating and pollution problem.Current China vigorously supports development water resource heat pump industry, extensively solves the environmental pollution that new building causes because of heating process, economizes on resources, avoid energy waste.
In China, the temperature of underground water source is usually between 10 ~ 15 DEG C.When this thermal source condition is applied to common single-stage water source heat pump units, the hot water of 40 ~ 50 DEG C generally can only be provided.When temperature requirements is higher than 70 DEG C, because the efficiency of unit is extremely low, assigned temperature requirement cannot be reached.Therefore, traditional earth source heat pump can't meet existing high water temperature demand.
Summary of the invention
A kind of underground heat that can directly utilize is the object of the present invention is to provide to produce the source pump of more than 70 DEG C high-temperature-hot-waters.
The present invention specifically provides superposition type earth source heat pump, and comprise elementary heat pump, secondary heat pump and overlapping condenser 1, elementary heat pump is connected by overlapping condenser 1 with secondary heat pump; Wherein:
Elementary heat pump comprises water source pipe 2, initial cycle pipeline 3, low-temperature level compressor 4, low-temperature level evaporimeter 5, low-temperature level reservoir 6, low-temperature level compressor 4 is communicated with by initial cycle pipeline 3 with low-temperature level reservoir 6, initial cycle pipeline 3 is through low-temperature level evaporimeter 5 and overlapping condenser 1, and water source pipe 2 is through low-temperature level evaporimeter 5; Low-temperature level reservoir 6 is for storing cryogenic fluid.
Secondary heat pump comprises hot-water line 7, secondary cycle pipeline 8, high-temperature level compressor 9, high-temperature level evaporimeter 10, high-temperature level reservoir 11, high-temperature level compressor .9 is communicated with by secondary cycle pipeline 8 with high-temperature level reservoir 11, secondary cycle pipeline 8 is through high-temperature level evaporimeter 10 and overlapping condenser 1, and hot-water line 7 is through high-temperature level evaporimeter 10.High-temperature level reservoir 11 is for storing high temperature refrigerant.
Described elementary heat pump is also provided with low-temperature level expansion valve 12, low-temperature level liquid-sighting glass 13, low-temperature level device for drying and filtering 14, and aforementioned three is arranged on initial cycle pipeline 3.Low-temperature level expansion valve 12 is for throttling, and low-temperature level liquid-sighting glass 13 is for observing pipeline inside liquid level, and low-temperature level device for drying and filtering 14 is for removing the moisture content in cryogenic fluid.
Described secondary heat pump is also provided with high-temperature level expansion valve 15, high-temperature level liquid-sighting glass 16, high-temperature level device for drying and filtering 17, and aforementioned three is arranged on secondary cycle pipeline 8.High-temperature level expansion valve 15 is for throttling, and high-temperature level liquid-sighting glass 16 is for observing pipeline inside liquid level, and high-temperature level device for drying and filtering 17 is for removing the moisture content in high temperature refrigerant.
The elementary heat pump of superposition type earth source heat pump uses common working medium as the circulatory mediator of initial cycle pipeline 3, and secondary heat pump uses high temperature refrigerant as the circulatory mediator of secondary cycle pipeline 8.
Common working medium is the combination of R22, R407C, R134a one of them or its, and secondary heat pump uses high temperature refrigerant to be HR01 and/or HR02.
Common working medium is specially R407C, and secondary heat pump uses high temperature refrigerant to be specially HR01.
The using method of described superposition type earth source heat pump, it is characterized in that the common worker quality liquid of 0 ~ 10 DEG C in elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe 2 by low-temperature level evaporimeter 5 after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter 5, thermal release is given the high temperature refrigerant of 30 ~ 50 DEG C, common working medium is condensed into 45 DEG C of liquid, be 0 ~ 10 DEG C of common worker quality liquid by throttling again by low-temperature level choke valve,
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 30 ~ 50 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line 7 by high-temperature level condenser, liquid in hot-water line 7 is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 75 ~ 90 DEG C, is 30 ~ 50 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
The common worker quality liquid of 2 DEG C in elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe 2 by low-temperature level evaporimeter 5 after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter 5, thermal release is given the high temperature refrigerant of 40 DEG C, common working medium is condensed into 45 DEG C of liquid, is 2 DEG C of common worker quality liquids again by low-temperature level choke valve by throttling;
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 40 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line 7 by high-temperature level condenser, liquid in hot-water line 7 is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 85 DEG C, is 40 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
The working medium that the present invention adopts high and low temperature two kinds different, is divided into high and low temperature two-stage and carries out temperature increment cascade cycle by heat pump circulating system.Elementary heat pump is common working substance system, is equivalent to common heat pump, and the common worker quality liquid of about 2 DEG C in unit, is evaporated to gas after being absorbed the heat in underground water by low-temperature level evaporimeter 5, discharges after underground water is cooled to 7 DEG C from 12 DEG C.And the common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas.But now common Working medium gas be not by condenser by the thermal release of high temperature and high pressure gas in heating backwater, but by overlapping condenser 1 by the high temperature refrigerant about thermal release to 40 DEG C; And common working medium is condensed into the liquid of more than 45 DEG C, and be about 2 DEG C common worker quality liquids by low-temperature level expansion valve 12 throttling.Move in circles like this.Secondary heat pump is high temperature refrigerant system, and high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of about 40 DEG C after.High temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into high temperature and high pressure gas.The high temperature refrigerant gas of HTHP is rejected heat in heating backwater by high-temperature level evaporimeter 10, makes heating water rise to about 80 DEG C.After high temperature refrigerant is condensed into the liquid of about 85 DEG C, be about 40 DEG C high temperature refrigerant liquid by high-temperature level expansion valve 15 throttling.Move in circles like this.
Two circulatory systems superpose by the present invention, make high and low temperature two kinds of working medium even runnings under optimum condition.In the present invention, low-temperature level part is used to extract low-grade heat from underground water; The gas that high-temperature level part is used to low-temperature level part is discharged makes it condensation at a certain temperature, liquefaction.
Invention increases the Energy Efficiency Ratio of large temperature difference heat pump cycle, when making normally to run, supply water temperature is more than 70 DEG C, and Energy Efficiency Ratio is up to more than 2.8.By analog computation, the Energy Efficiency Ratio of heat pump of high-temp water source unit is as shown in the table:
As seen from the above table, Energy Efficiency Ratio average out to about 3 of the present invention, namely consumes a energy, can obtain the heat being equivalent to three parts of energy.
Heat source side of the present invention is identical with common water resource heat pump, can utilize common underground water source.The present invention can directly utilize the low-grade heat sources such as such as underground water source to produce more than 70 DEG C high-temperature-hot-waters, and the highest water temperature can reach 90 DEG C.The present invention is mainly used in the place need applying higher temperature hot water, as hotel, restaurant, factory, petroleum and petrochemical industry system, heating industry, food medicine processing industry etc.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further details.
Fig. 1 is superposition type earth source heat pump overall structure schematic diagram.
Detailed description of the invention
Reference numeral explanation
1 overlapping condenser, 2 water source pipes, 3 initial cycle pipelines, 4 low-temperature level compressors, 5 low-temperature level evaporimeters, 6 low-temperature level reservoirs, 7 hot-water lines, 8 secondary cycle pipelines, 9 high-temperature level compressors, 10 high-temperature level evaporimeters, 11 high-temperature level reservoirs, 12 low-temperature level expansion valves, 13 low-temperature level liquid-sighting glass, 14 low-temperature level devices for drying and filtering, 15 high-temperature level expansion valves, 16 high-temperature level liquid-sighting glass, 17 high-temperature level devices for drying and filtering.
In figure, the direction of arrow is liquid flow direction.
Embodiment 1
The object of the present embodiment is to provide a kind of underground heat that can directly utilize to produce the source pump of more than 70 DEG C high-temperature-hot-waters.
The present embodiment specifically provides superposition type earth source heat pump, and comprise elementary heat pump, secondary heat pump and overlapping condenser 1, elementary heat pump is connected by overlapping condenser 1 with secondary heat pump; Wherein:
Elementary heat pump comprises water source pipe 2, initial cycle pipeline 3, low-temperature level compressor 4, low-temperature level evaporimeter 5, low-temperature level reservoir 6, low-temperature level compressor 4 is communicated with by initial cycle pipeline 3 with low-temperature level reservoir 6, initial cycle pipeline 3 is through low-temperature level evaporimeter 5 and overlapping condenser 1, and water source pipe 2 is through low-temperature level evaporimeter 5; Low-temperature level reservoir 6 is for storing cryogenic fluid.
Secondary heat pump comprises hot-water line 7, secondary cycle pipeline 8, high-temperature level compressor 9, high-temperature level evaporimeter 10, high-temperature level reservoir 11, high-temperature level compressor 9 is communicated with by secondary cycle pipeline 8 with high-temperature level reservoir 11, secondary cycle pipeline 8 is through high-temperature level evaporimeter 10 and overlapping condenser 1, and hot-water line 7 is through high-temperature level evaporimeter 10.High-temperature level reservoir 11 is for storing high temperature refrigerant.
Described elementary heat pump is also provided with low-temperature level expansion valve 12, low-temperature level liquid-sighting glass 13, low-temperature level device for drying and filtering 14, and aforementioned three is arranged on initial cycle pipeline 3.Low-temperature level expansion valve 12 is for throttling, and low-temperature level liquid-sighting glass 13 is for observing pipeline inside liquid level, and low-temperature level device for drying and filtering 14 is for removing the moisture content in cryogenic fluid.
Described secondary heat pump is also provided with high-temperature level expansion valve 15, high-temperature level liquid-sighting glass 16, high-temperature level device for drying and filtering 17, and aforementioned three is arranged on secondary cycle pipeline 8.High-temperature level expansion valve 15 is for throttling, and high-temperature level liquid-sighting glass 16 is for observing pipeline inside liquid level, and high-temperature level device for drying and filtering 17 is for removing the moisture content in high temperature refrigerant.
The elementary heat pump of superposition type earth source heat pump uses common working medium as the circulatory mediator of initial cycle pipeline 3, and secondary heat pump uses high temperature refrigerant as the circulatory mediator of secondary cycle pipeline 8.
Common working medium is the combination of R22, R407C, R134a one of them or its, and secondary heat pump uses high temperature refrigerant to be HR01 and/or HR02.
Common working medium is specially R407C, and secondary heat pump uses high temperature refrigerant to be specially HR01.
The using method of described superposition type earth source heat pump, it is characterized in that the common worker quality liquid of 0 ~ 10 DEG C in elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe 2 by low-temperature level evaporimeter 5 after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter 5, thermal release is given the high temperature refrigerant of 30 ~ 50 DEG C, common working medium is condensed into 45 DEG C of liquid, be 0 ~ 10 DEG C of common worker quality liquid by throttling again by low-temperature level choke valve,
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 30 ~ 50 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line 7 by high-temperature level condenser, liquid in hot-water line 7 is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 75 ~ 90 DEG C, is 30 ~ 50 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
The common worker quality liquid of 2 DEG C in elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe 2 by low-temperature level evaporimeter 5 after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter 5, thermal release is given the high temperature refrigerant of 40 DEG C, common working medium is condensed into 45 DEG C of liquid, is 2 DEG C of common worker quality liquids again by low-temperature level choke valve by throttling;
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 40 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line 7 by high-temperature level condenser, liquid in hot-water line 7 is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 85 DEG C, is 40 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
The working medium that the present embodiment adopts high and low temperature two kinds different, is divided into high and low temperature two-stage and carries out temperature increment cascade cycle by heat pump circulating system.Elementary heat pump is common working substance system, is equivalent to common heat pump, and the common worker quality liquid of about 2 DEG C in unit, is evaporated to gas after being absorbed the heat in underground water by low-temperature level evaporimeter 5, discharges after underground water is cooled to 7 DEG C from 12 DEG C.And the common Working medium gas after evaporation is sucked by low-temperature level compressor 4 and is compressed into high temperature and high pressure gas.But now common Working medium gas be not by condenser by the thermal release of high temperature and high pressure gas in heating backwater, but by overlapping condenser 1 by the high temperature refrigerant about thermal release to 40 DEG C; And common working medium is condensed into the liquid of more than 45 DEG C, and be about 2 DEG C common worker quality liquids by low-temperature level expansion valve 12 throttling.Move in circles like this.Secondary heat pump is high temperature refrigerant system, and high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of about 40 DEG C after.High temperature refrigerant gas after evaporation is sucked by high-temperature level compressor 9 and is compressed into high temperature and high pressure gas.The high temperature refrigerant gas of HTHP is rejected heat in heating backwater by high-temperature level evaporimeter 10, makes heating water rise to about 80 DEG C.After high temperature refrigerant is condensed into the liquid of about 85 DEG C, be about 40 DEG C high temperature refrigerant liquid by high-temperature level expansion valve 15 throttling.Move in circles like this.
Two circulatory systems superpose by the present embodiment, make high and low temperature two kinds of working medium even runnings under optimum condition.In the present embodiment, low-temperature level part is used to extract low-grade heat from underground water; The gas that high-temperature level part is used to low-temperature level part is discharged makes it condensation at a certain temperature, liquefaction.
Embodiment adds the Energy Efficiency Ratio of large temperature difference heat pump cycle, when making normally to run, supply water temperature is more than 70 DEG C, and Energy Efficiency Ratio is up to more than 2.8.By analog computation, the Energy Efficiency Ratio of heat pump of high-temp water source unit is as shown in the table:
As seen from the above table, the Energy Efficiency Ratio average out to about 3 of the present embodiment, namely consumes a energy, can obtain the heat being equivalent to three parts of energy.
The present embodiment heat source side is identical with common water resource heat pump, can utilize common underground water source.The present embodiment can directly utilize the low-grade heat sources such as such as underground water source to produce more than 70 DEG C high-temperature-hot-waters, and the highest water temperature can reach 90 DEG C.The present embodiment is mainly used in the place need applying higher temperature hot water, as hotel, restaurant, factory, petroleum and petrochemical industry system, heating industry, food medicine processing industry etc.
Embodiment 2
The present embodiment except common working medium select R22, except high temperature refrigerant selects HR02, all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 3
The present embodiment is except common working medium selects R134a, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 4
The present embodiment is not except arranging low-temperature level reservoir 6, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 5
The present embodiment is not except arranging high-temperature level reservoir 11, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 6
The present embodiment is not except arranging low-temperature level expansion valve 12 and/or high-temperature level expansion valve 15, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 7
The present embodiment is not except arranging low-temperature level liquid-sighting glass 13 and/or high-temperature level liquid-sighting glass 16, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Embodiment 8
The present embodiment is not except arranging low-temperature level device for drying and filtering 14 and/or high-temperature level device for drying and filtering 17, and all the other structures, implementation method, expection technique effect are identical with embodiment 1.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (8)

1. superposition type earth source heat pump, is characterized in that comprising elementary heat pump, secondary heat pump and overlapping condenser (1), and elementary heat pump is connected by overlapping condenser (1) with secondary heat pump; Wherein:
Elementary heat pump comprises water source pipe (2), initial cycle pipeline (3), low-temperature level compressor (4), low-temperature level evaporimeter (5), low-temperature level reservoir (6), low-temperature level compressor (4) is communicated with by initial cycle pipeline (3) with low-temperature level reservoir (6), initial cycle pipeline (3) is through low-temperature level evaporimeter (5) and overlapping condenser (1), and water source pipe (2) is through low-temperature level evaporimeter (5);
Secondary heat pump comprises hot-water line (7), secondary cycle pipeline (8), high-temperature level compressor (9), high-temperature level evaporimeter (10), high-temperature level reservoir (11), high-temperature level compressor (9) is communicated with by secondary cycle pipeline (8) with high-temperature level reservoir (11), secondary cycle pipeline (8) is through high-temperature level evaporimeter (10) and overlapping condenser (1), and hot-water line (7) is through high-temperature level evaporimeter (10).
2. according to superposition type earth source heat pump according to claim 1, it is characterized in that described elementary heat pump is also provided with low-temperature level expansion valve (12), low-temperature level liquid-sighting glass (13), low-temperature level device for drying and filtering (14), aforementioned three is arranged on initial cycle pipeline (3).
3. according to superposition type earth source heat pump according to claim 1, it is characterized in that described secondary heat pump is also provided with high-temperature level expansion valve (15), high-temperature level liquid-sighting glass (16), high-temperature level device for drying and filtering (17), aforementioned three is arranged on secondary cycle pipeline (8).
4. according to the superposition type earth source heat pump of claims 1 to 3 described in one of them, it is characterized in that the elementary heat pump of described superposition type earth source heat pump uses common working medium as the circulatory mediator of initial cycle pipeline (3), secondary heat pump uses high temperature refrigerant as the circulatory mediator of secondary cycle pipeline (8).
5., according to superposition type earth source heat pump according to claim 4, it is characterized in that described common working medium is the combination of R22, R407C, R134a one of them or its, secondary heat pump uses high temperature refrigerant to be HR01 and/or HR02.
6. according to superposition type earth source heat pump according to claim 5, it is characterized in that described common working medium is specially R407C, secondary heat pump uses high temperature refrigerant to be specially HR01.
7. according to the using method of claims 1 to 3 or 5 or 6 superposition type earth source heat pump described in one of them, it is characterized in that the common worker quality liquid of 0 ~ 10 DEG C in described elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe (2) by low-temperature level evaporimeter (5) after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor (4) and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter (5), thermal release is given the high temperature refrigerant of 30 ~ 50 DEG C, common working medium is condensed into 45 DEG C of liquid, be 0 ~ 10 DEG C of common worker quality liquid by throttling again by low-temperature level choke valve,
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 30 ~ 50 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor (9) and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line (7) by high-temperature level condenser, liquid in hot-water line (7) is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 75 ~ 90 DEG C, is 30 ~ 50 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
8. according to the using method of superposition type earth source heat pump described in claim 7, it is characterized in that the common worker quality liquid of 2 DEG C in described elementary heat pump, gas is evaporated to absorbed the heat of underground water in water source pipe (2) by low-temperature level evaporimeter (5) after, underground water returns to underground after being cooled to 7 DEG C from 12 DEG C, common Working medium gas after evaporation is sucked by low-temperature level compressor (4) and is compressed into high temperature and high pressure gas, and by low-temperature level evaporimeter (5), thermal release is given the high temperature refrigerant of 40 DEG C, common working medium is condensed into 45 DEG C of liquid, be 2 DEG C of common worker quality liquids by throttling again by low-temperature level choke valve,
Secondary heat pump, high temperature refrigerant liquid is evaporated to gas absorb the heat of common working medium at the temperature of 40 DEG C after, high temperature refrigerant gas after evaporation is sucked by high-temperature level compressor (9) and is compressed into HTHP high temperature refrigerant gas, HTHP high temperature refrigerant gas rejects heat to hot-water line (7) by high-temperature level condenser, liquid in hot-water line (7) is made to rise to 80 DEG C from 75 DEG C, high temperature refrigerant is condensed into the liquid of 85 DEG C, is 40 DEG C of high temperature refrigerant liquid again by high-temperature level choke valve by throttling.
CN201510121182.2A 2015-03-18 2015-03-18 Cascade ground source heat pump and use method thereof Pending CN104713261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510121182.2A CN104713261A (en) 2015-03-18 2015-03-18 Cascade ground source heat pump and use method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510121182.2A CN104713261A (en) 2015-03-18 2015-03-18 Cascade ground source heat pump and use method thereof

Publications (1)

Publication Number Publication Date
CN104713261A true CN104713261A (en) 2015-06-17

Family

ID=53412812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510121182.2A Pending CN104713261A (en) 2015-03-18 2015-03-18 Cascade ground source heat pump and use method thereof

Country Status (1)

Country Link
CN (1) CN104713261A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105180257A (en) * 2015-10-16 2015-12-23 佛山市顺德区菲达斯投资管理有限公司 Cascade type air source heat supply heat pump system suitable for ultralow temperature environment
CN105241145A (en) * 2015-11-24 2016-01-13 广东申菱环境系统股份有限公司 Control method of compensation type dual-source heat pump cold and hot water unit
CN105674623A (en) * 2016-03-14 2016-06-15 黑龙江宏利天扬新能源技术开发有限公司 Cascade air source heat pump system suitable for ultralow-temperature environment
CN109323234A (en) * 2018-09-18 2019-02-12 上海交通大学 Air energy boiler steam supply system
CN111023610A (en) * 2018-10-10 2020-04-17 南通华信中央空调有限公司 Heat pump system and method for operating the same
CN111023610B (en) * 2018-10-10 2021-11-05 南通华信中央空调有限公司 Heat pump system and method for operating the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105180257A (en) * 2015-10-16 2015-12-23 佛山市顺德区菲达斯投资管理有限公司 Cascade type air source heat supply heat pump system suitable for ultralow temperature environment
CN105241145A (en) * 2015-11-24 2016-01-13 广东申菱环境系统股份有限公司 Control method of compensation type dual-source heat pump cold and hot water unit
CN105674623A (en) * 2016-03-14 2016-06-15 黑龙江宏利天扬新能源技术开发有限公司 Cascade air source heat pump system suitable for ultralow-temperature environment
CN109323234A (en) * 2018-09-18 2019-02-12 上海交通大学 Air energy boiler steam supply system
CN111023610A (en) * 2018-10-10 2020-04-17 南通华信中央空调有限公司 Heat pump system and method for operating the same
CN111023610B (en) * 2018-10-10 2021-11-05 南通华信中央空调有限公司 Heat pump system and method for operating the same

Similar Documents

Publication Publication Date Title
CN203657051U (en) Direct condensation type air source heat pump floor heating system
CN104713261A (en) Cascade ground source heat pump and use method thereof
WO2014111061A1 (en) Hot and cold inner balancer set
WO2014111017A1 (en) External cold and heat balance unit
WO2014111020A1 (en) Hot and cold balancer set
CN101825374B (en) Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources
CN106352603B (en) Ground source heat exchanger subregion hierarchical management system
CN105485907B (en) A kind of efficient big temperature rises single-stage throttling two stages of compression Teat pump boiler
CN202660808U (en) Novel heat pipe and heat pump combined refrigerating device
CN102221251B (en) Split depressurization water/ground energy cold and warm domestic hot water integrated central air conditioning unit
CN203405023U (en) Internal-switching water source type heat pump air-conditioning unit
CN203810792U (en) Novel ultralow environment temperature air source heat pump
CN103925726B (en) A kind of buried tubular type high temperature heat pump unit
CN203798007U (en) Buried pipe type high-temperature heat pump unit
CN102563947A (en) Heat pipe and heat pump combination type refrigerating plant
CN202304056U (en) Double-working medium cascade directly-heated type heat pump hot water unit
CN205277478U (en) Compound cooling system based on heat pipe refrigeration
CN202083060U (en) Split water/ground energy heat pump unit
CN204513847U (en) A kind of air conditioning hot connects for device
CN201779922U (en) Indoor triple-generation ground source heat pump (GSHP) unit based on air-conditioning cooling, air-conditioning heating and sanitary hot water
CN206890852U (en) A kind of oil field automatic integratedization Multifunctional heater
CN203518326U (en) Domestic combined cooling heating and power system
CN210004626U (en) ground source heat pump heat recovery unit with high-efficiency throttling system
CN205037621U (en) Geothermal energy heat pump set
CN202511515U (en) Heat pipe and heat pump combined refrigeration device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150617