CN201293487Y - Small-sized straight expanding earth source heat pump air conditioner hot water unit - Google Patents

Small-sized straight expanding earth source heat pump air conditioner hot water unit Download PDF

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Publication number
CN201293487Y
CN201293487Y CN 200820158843 CN200820158843U CN201293487Y CN 201293487 Y CN201293487 Y CN 201293487Y CN 200820158843 CN200820158843 CN 200820158843 CN 200820158843 U CN200820158843 U CN 200820158843U CN 201293487 Y CN201293487 Y CN 201293487Y
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heat exchanger
hot water
valve
regenerator
interface
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Expired - Fee Related
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CN 200820158843
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Chinese (zh)
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张泉
侯喜快
谢更新
曾丽萍
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Hunan University
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Hunan University
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    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12Hot water central heating systems using heat pumps

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Abstract

The utility model provides a small-sized directly expanding type ground source heat pump air conditioner hot water unit, comprising a compressor, an indoor heat exchanger, an underground heat exchanger, a hot water heat exchanger, an expansion valve, an oil extractor, a solenoid valve, a check valve, a filter, a four-way valve and a regenerator. The output terminal of the compressor is connected with the input terminal of the hot water heat exchanger. The output terminal of the hot water heat exchanger is connected with a joint C of the four-way valve. The input end of the compressor is connected with a joint D of the regenerator. A joint B of the regenerator is connected with a joint A by the four-way valve. The joint A of the regenerator is connected with the input terminal of the indoor heat exchanger. A filter, a check valve, an expansion valve and a solenoid valve are serially connected between the joint A of the regenerator and the input terminal of the indoor heat exchanger. The output terminal of the indoor heat exchanger is connected with the joint D of the four-way valve. One end of the underground heat exchanger is connected with joint B by the four-way valve and the other end is connected with the joint C of the regenerator. The indoor heat exchanger and the hot water heat exchanger are provided with a by-pass valve. The hot water unit has high exchange efficiency.

Description

A kind of small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit
Technical field
The utility model relates to a kind of straight-expanded geo-source hot-pump, particularly a kind of electric motor car speed-raising drive unit.
Background technology
Along with the raising of people's living standard and the change of habits and customs, hot water demand's amount increases year by year.Correspondingly, produce the also significantly rising of energy that the domestic hot-water consumes, the hot water mode of producing commonly used is based on electric heater, and operating cost is higher, and energy resource consumption increases.Straight-expanded geo-source hot-pump is to utilize the cryogenic energy in shallow surface normal temperature soil or the water source to carry out the room air adjusting as the low grade heat energy resource, more common earth source heat pump heat exchange efficiency is higher, it is a kind of power-saving technology of sustainable development, earth source heat pump can also realize that freeze summer and winter heating also provides the domestic hot-water three big functions simultaneously simultaneously, for conventional water heaters (electric heater, gas water heater), its operating cost is low.Simultaneously, China is vast in territory, the Meteorological Characteristics more complicated, for Xia Redong cryogenic region (as the Yangtze river basin), system summer heat exhaust much larger than required caloric receptivity in winter, the long-term operation of earth-source hot-pump system can cause the underground temperature to raise, and causes thermal pollution, also can cause the reduction of heat exchange efficiency reduction and whole system refrigerating efficiency simultaneously.If row can be heated life hot water to the condensation heat of soil, can energy efficient, can reduce pollution again to soil, and the refrigerating capacity and the reliability of raising system.
The problem of aspects such as also there is source, ground heat exchanger tube inner refrigerant assignment of traffic inequality simultaneously in earth source heat pump, the oil return of heat exchanger tube inner refrigerant is difficult to and whole refrigerating efficiency has much room for improvement.According to prior art, generally be to solve the oil return problem, but the blindness of cold-producing medium flow velocity improve, and may cause the pressure of compressor inlet gas to change, thereby influence the operational efficiency of system by improving the cold-producing medium flow velocity; Utilize the different journey pipe laying of cold-producing medium,, cause each underground pipe laying inner refrigerant maldistribution, influence the heat exchange efficiency of underground buried tube because the resistance of each cold-producing medium flow process is inequality.
The utility model content
Technical problem to be solved of the present utility model provides a kind of small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit, this hot water unit can solve air-conditioning demand and hot water supply requirement, can control air conditioning and water heating system and move by different mode under different demands.Simultaneously, also solve outdoor underground buried tube formula heat exchanger inner refrigerant oil return difficulty, the uneven problem of shunting under the situation of sub-load, improved heat exchange efficiency.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit is characterized in that: comprise compressor, indoor heat exchanger, ground heat exchanger, hot water heat exchanger, expansion valve, oil eliminator, magnetic valve, check valve, filter, cross valve and regenerator;
The output of compressor connects the input of hot water heat exchanger through oil eliminator, the interface C of the output termination cross valve of hot water heat exchanger, and the input of compressor meets the interface D of regenerator;
The interface B of regenerator meets the interface A of cross valve;
The interface A of regenerator connects the input of indoor heat exchanger; Be serially connected with filter, check valve, expansion valve and magnetic valve between the interface A of regenerator and the input of indoor heat exchanger; The interface D of the output termination cross valve of indoor heat exchanger;
The interface B of one termination cross valve of ground heat exchanger, the other end meets the interface C of regenerator.
Described indoor heat exchanger and hot water heat exchanger all are equipped with bypass valve.
As improvement, the loop length that every vertical pipe laying of described small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit forms equates.
As improvement, the pipe laying rising portion is provided with elbow on the ground of described ground heat exchanger.
The beneficial effect that the utility model had has:
It (is exactly the stop valve 12e among the figure that the utility model all is equipped with by-passing valve to indoor heat exchanger and hot water heat exchanger, 12f), when only needing air-conditioning or only needing hot water, can be by the conversion that realizes various operational modes of closing of control four-way change-over valve and by-passing valve.So, not only having overcome the geothermal heat pump air-conditioner hot-water heating system needs other fire coal, combustion gas or the heating equipment of increasing that the deficiency of hot water is provided at air-conditioning, when the hot water demand is asynchronous, but also the utilization rate of geothermal heat pump air-conditioner hot-water heating system greatly is provided.
Further, utilize the mode of cold-producing medium again, promptly utilize same Cheng Yuanli, the every identical or approximate unanimity of loop length that vertical pipe laying forms with the journey pipe laying, thereby make resistance that all pipe laying inner refrigerants circulate about equally, solve cold-producing medium shunt inequality in the underground heat exchange pipeline problem.So, improve the heat exchange efficiency of underground heat exchange pipeline, thereby also improved overall system efficiency.
In further improving, also utilized oil return to bend mode, promptly increase an elbow (as shown in Figure 1) at ground pipe laying rising portion, oil flows to oil return with flowing of cold-producing medium with the gravity effect and bends, oil in oil return is curved collects more and more pipeline is blocked fully, and the pipeline after oil return is curved returns along with the running pressure of main frame is more and more lower, when the oil in low pressure reduction before and after oil return is curved is enough to oil return bent rises to peak, oil just is thus lifted to peak, thereby solves the problem of oil return difficulty.So, help improving the cycle efficieny of whole system under different mode, also prolonged the service life of compressor simultaneously.
By controlling the switching of each valve, can realize plurality of operating modes, realize efficient and energy-conservation.
In sum, the utility model has been realized earth source heat pump operation as requested under five kinds of different operating modes by a series of improvement, has solved cold-producing medium oil return difficulty and problem of uneven distribution, reduced the thermal pollution of earth source heat pump simultaneously, improved the operational efficiency of system soil.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Label declaration: 1, compressor; 2, oil eliminator; 3, hot water heat exchanger; 4, four-way change-over valve; 5, underground (pipe laying) heat exchanger; 6, magnetic valve; 7, expansion valve; 8, check valve; 9, filter; 10, Returning heat-exchanger; 11, indoor heat exchanger; 12a-12h, stop valve (eight); 13a-13c, thermometer (three); 14a-14c, Pressure gauge (three); 15a-15d, gate valve (four).
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1:
As shown in Figure 1, a kind of small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit comprises compressor 1, indoor heat exchanger 11, ground heat exchanger 5, hot water heat exchanger 3, expansion valve 7, oil eliminator 2, magnetic valve 6, check valve 8, filter 9, cross valve 4 and regenerator 10;
The output of compressor 1 connects the input of hot water heat exchangers 3 through oil eliminator 2, the interface C of the output termination cross valve of hot water heat exchanger 3, and the input of compressor 1 meets the interface D of regenerator 10;
The interface B of regenerator 10 meets the interface A of cross valve 4;
The interface A of regenerator 10 connects the input of indoor heat exchanger 11; Be serially connected with filter 9, check valve 8, expansion valve 7 and magnetic valve 2 between the interface A of regenerator 10 and the input of indoor heat exchanger 11; The interface D of the output termination cross valve 4 of indoor heat exchanger 11;
The interface B of one termination cross valve of ground heat exchanger 5, the other end meets the interface C of regenerator.
Described indoor heat exchanger 11 and hot water heat exchanger 3 all are equipped with bypass valve (being stop valve 12e and 12f).
The loop length that every vertical pipe laying of described small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit forms equates.
The pipe laying rising portion is provided with elbow on the ground of described ground heat exchanger 5.
Concrete working method is as follows:
1, separate refrigeration process: close 12b, 12c, 12e, 12g, 12h, 15a, seven valves of 15c, open 12a, 12d, 12f, 15b, five valves of 15d, high temperature and high pressure gaseous refrigerant flows to ground heat exchanger 5 from compressor 1 through the CB direction of oil eliminator 2 and valve 12f and commutation cross valve 4 to carry out the condensation heat release and becomes high-temp liquid; The high-temperature liquid state cold-producing medium carries out heat exchange through the valve 12a hot device of regenerator 10 of flowing through with the cryogenic gaseous cold-producing medium that comes out from indoor heat exchange coil then; Expand by swelling part (filter 9, check valve 8, expansion valve 7 and magnetic valve 6) then and become the refrigerant liquid of low-temp low-pressure; The indoor heat exchange coil 11 evaporation heat absorptions of flowing through again become low-temp low-pressure gas, reach indoor refrigeration; Last low-temp low-pressure gaseous refrigerant is got back to compressor 1 through regenerator 10 again.Cyclic process is 1-2-4 (CB)-5-10-9-8-7-6-11-10-1;
2, refrigeration adds domestic hot-water's process: close 12b, 12c, 12e, 12f, 12g, 12h, eight valves of 15a, 15c, open 12a, 12d, four valves of 15b, 15d, high temperature and high pressure gaseous refrigerant enters hot water heat exchanger 3 from compressor 1 through oil eliminator 2 and carries out exchange heat with life with hot water, reaches the purpose of heat supply water; Flowing to ground heat exchanger 5 through the CB of four-way change-over valve 4 direction then carries out the condensation heat release and becomes high-temperature liquid state; The high-temperature liquid state cold-producing medium carries out heat exchange through the valve 12a hot device of regenerator 10 of flowing through with the cryogenic gaseous cold-producing medium that comes out from indoor coil; Be expanded to the refrigerant liquid of low-temp low-pressure again by parts expansions (filter 9, check valve 8, expansion valve 7 and magnetic valve 6); The indoor heat exchanger 11 evaporation heat absorptions of flowing through again become low-temp low-pressure gas, reach indoor refrigeration; Last low-temp low-pressure gaseous refrigerant is got back to compressor 1 through regenerator 10.Cyclic process is 1-2-3-4 (CB)-5-10-9-8-7-6-11-10-1.
3, independent heat supplying process: valve 12a, 12d, 12e, 15b, 15d are closed, valve 12b, 12c, 12f, 12g, 12h, 15a, 15c open, high temperature and high pressure gaseous refrigerant carries out the condensation heat release and becomes high-temp liquid through the CD direction of oil eliminator 2, valve 12f, four-way change-over valve 4 and the valve 12b indoor heat exchange coil 11 of flowing through from compressor 1, thereby reaches the effect that heats; The high-temperature liquid state cold-producing medium carries out heat exchange through the valve 12c hot device of regenerator 10 of flowing through with the cryogenic gaseous cold-producing medium that comes out from ground heat exchanger; Expand by parts expansions (filter 9, check valve 8, expansion valve 7 and magnetic valve 6) again and become the refrigerant liquid of low-temp low-pressure; Flowing to ground heat exchanger 5 evaporation heat absorptions then becomes low-temp low-pressure gas, and the cold dispatch is extremely underground; Last low-temp low-pressure gaseous refrigerant is got back to compressor 1 through the BA of four-way change-over valve direction and regenerator 10.Cyclic process is 1-2-4 (CD)-11-10-9-8-7-6-5-4 (BA)-10-1;
4, the air-conditioning heat supply adds domestic hot-water's process: valve 12a, 12d, 12e, 12f, 15c, 15d are closed, valve 12c, 12g, 12h, 15a, 15b open, high temperature and high pressure gaseous refrigerant enters hot water heat exchanger from compressor 1 through oil eliminator 2 and carries out heat exchange with life with hot water, reaches the purpose of heat supply water; Flow to indoor heat exchange coil 11 through the CD of four-way change-over valve 4 direction and valve 12b then and carry out the condensation heat release and become high-temp liquid, thereby reach the effect that heats; The high-temperature liquid state cold-producing medium carries out heat exchange through the valve 12c hot device of regenerator 10 of flowing through with the cryogenic gaseous cold-producing medium that comes out through ground heat exchanger; Expand by parts expansions (filter 9, check valve 8, expansion valve 7 and magnetic valve 6) then and become the refrigerant liquid of low-temp low-pressure; The ground heat exchanger 5 evaporation heat absorptions of flowing through again become low-temp low-pressure gas, and the cold dispatch is extremely underground; Last low-temp low-pressure gaseous refrigerant is got back to compressor 1 through the BA of four-way change-over valve direction and regenerator 10.Cyclic process is: 1-2-3-4 (CD)-11-10-9-8-7-6-5-4 (BA)-10-1;
5, supply domestic hot-water's process separately: valve 12a, 12d, 12f, 15b, 15d are closed, valve 12b, 12c, 12e, 12g, 12h, 15a, 15c open, high temperature and high pressure gaseous refrigerant enters hot water heat exchanger from compressor 1 through oil eliminator 2 and carries out heat exchange with life with hot water, reaches the purpose of heat supply water; The liquid cold-producing medium of HTHP flows to the hot device 10 of regenerator through the CD of four-way change-over valve 4 direction, valve 12b, valve 12e and valve 12c successively and carries out heat exchange with the cryogenic gaseous cold-producing medium that comes out through ground heat exchanger then; Expand by swelling part (filter 9, check valve 8, expansion valve 7 and magnetic valve 6) again and become the refrigerant liquid of low-temp low-pressure; Flowing to ground heat exchanger 5 evaporation heat absorptions then becomes low-temp low-pressure gas, and the cold dispatch is extremely underground; Last low-temp low-pressure gaseous refrigerant is got back to compressor 1 through the BA of four-way change-over valve direction and regenerator 10.Cyclic process is 1-2-3-4 (CD)-10-9-8-7-6-5-4 (BA)-10-1.

Claims (4)

1, a kind of small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit is characterized in that: comprise compressor, indoor heat exchanger, ground heat exchanger, hot water heat exchanger, expansion valve, oil eliminator, magnetic valve, check valve, filter, cross valve and regenerator;
The output of compressor connects the input of hot water heat exchanger through oil eliminator, the interface C of the output termination cross valve of hot water heat exchanger, and the input of compressor meets the interface D of regenerator;
The interface B of regenerator meets the interface A of cross valve;
The interface A of regenerator connects the input of indoor heat exchanger; Be serially connected with filter, check valve, expansion valve and magnetic valve between the interface A of regenerator and the input of indoor heat exchanger; The interface D of the output termination cross valve of indoor heat exchanger;
The interface B of one termination cross valve of ground heat exchanger, the other end meets the interface C of regenerator.
2. small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit according to claim 1 is characterized in that described indoor heat exchanger and hot water heat exchanger all are equipped with bypass valve.
3. small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit according to claim 1 is characterized in that, the loop length that every vertical pipe laying of described small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit forms equates.
4. according to each described small-sized straight-expanded geo-source hot-pump air-conditioner hot water unit of claim 1~3, it is characterized in that the pipe laying rising portion is provided with elbow on the ground of described ground heat exchanger.
CN 200820158843 2008-10-21 2008-10-21 Small-sized straight expanding earth source heat pump air conditioner hot water unit Expired - Fee Related CN201293487Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852509A (en) * 2010-05-21 2010-10-06 北京中科华誉能源技术发展有限责任公司 Flooded water-source heat pump unit with refrigerant side cold and heat reversion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852509A (en) * 2010-05-21 2010-10-06 北京中科华誉能源技术发展有限责任公司 Flooded water-source heat pump unit with refrigerant side cold and heat reversion
CN101852509B (en) * 2010-05-21 2011-11-09 北京中科华誉能源技术发展有限责任公司 Flooded water-source heat pump unit with refrigerant side cold and heat reversion

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C17 Cessation of patent right
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Granted publication date: 20090819

Termination date: 20101021