CN103868281A - Ground source heat pump triple-generation system with one-stage compression and double-stage compression switchable - Google Patents
Ground source heat pump triple-generation system with one-stage compression and double-stage compression switchable Download PDFInfo
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- CN103868281A CN103868281A CN201410122848.1A CN201410122848A CN103868281A CN 103868281 A CN103868281 A CN 103868281A CN 201410122848 A CN201410122848 A CN 201410122848A CN 103868281 A CN103868281 A CN 103868281A
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Abstract
The invention relates to a ground source heat pump triple-generation system with one-stage compression and double-stage compression switchable. The system comprises a ground source side water unit, an air conditioner unit, a hot water unit and a heat exchange unit. In summer, the air conditioner unit and the hot water unit constitute a serial double-stage compression circulation, sanitary gaseous working media are provided for the hot water unit by the air conditioner unit, post-throttling low-temperature working media are provided for the air conditioner unit by the hot water unit, dual energy efficiency of the whole system is achieved, and heat transmitted to soil is reduced; in winter, the hot water unit and the air conditioner unit constitute a parallel single-stage compression circulation, and the ground source side water unit provides low-temperature heat sources for the hot water unit and the air conditioner unit at the same time; in spring or autumn, the hot water unit can work independently to make hot water. Because the hot water unit and the air conditioner unit are combined together in the system, the energy utilization ratio of the whole system is substantially improved, heat transmitted to the soil is reduced, the problem that heat is accumulated in the underground soil is effectively solved, and the whole ground source heat pump system can efficiently and stably work in an energy saving mode for a long time.
Description
Technical field
The present invention relates to a kind of single/double stage and compress switchable earth source heat pump combined supply system, geothermal heat pump air-conditioner, the warm hot-water heating system of confession are integrated, belong to the technical field of geothermal heat pump air-conditioner, hot water apparatus.
Background technology
At present, the most of earth-source hot-pump systems of China are independent air-conditioning system, and be indoor refrigeration summer, and be indoor heating winter, and spring, autumn transition season earth-source hot-pump system, in idle state, are made a low multiple use.The invention solves above problem, this system is hot water preparing when be indoor refrigeration summer, hot water preparing when be indoor heating winter, and spring, autumn transition season also can hot water preparings.
After the common earth-source hot-pump system operation several years, due to the heat imbalance that system enters/takes out to soil, there will be hot stack phenomenon after the several years, operational effect can worse and worse, finally even can not normally be moved, particularly the area cold in winter and hot in summer on the south the Changjiang river.The present invention has solved above problem cleverly, guarantees that the heat that earth-source hot-pump system enters/takes out to soil tends to balance throughout the year, makes the operation that entirely source heat pump system can be steady in a long-term, efficient, energy-conservation.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the problems of the prior art, a kind of earth-source hot-pump system that can realize three alliances is provided, realize refrigeration in indoor summer, Winter heat supply, the whole year domestic hot-water is provided, and can effectively solve underground hot stack problem, single/double stage efficient, energy-conservation, stable operation compresses switchable earth source heat pump combined supply system for a long time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of single/double stage compresses switchable earth source heat pump combined supply system, it is characterized in that comprising:
Heat exchange unit, described heat exchange unit comprises multifunctional heat exchanger, the first heat exchange coil, the gentle liquid storage tank of the second heat exchange coil, described the first heat exchange coil, the gentle liquid storage tank of the second heat exchange coil is placed in described multifunctional heat exchanger inside, and described gas-liquid storage tank is placed on the upper space of described multifunctional heat exchanger inside, described gas-liquid tank bottom is provided with a and e hole, top is respectively equipped with b, c, d hole, a hole is connected with described the second heat exchange coil, the other end of described the second heat exchange coil stretches out the outer wall of described multifunctional heat exchanger, b hole is connected with described the first heat exchange coil, the other end of described the first heat exchange coil stretches out the outer wall of described multifunctional heat exchanger, the outer wall of described multifunctional heat exchanger is stretched out respectively in c and e hole by copper pipe.
Ground source water unit, described ground source water unit comprises underground buried tube, water pump, second controller and the second temperature-sensing probe; Described underground buried tube outlet is communicated with described multifunctional heat exchanger top by water pump, described underground buried tube entrance is communicated with described multifunctional heat exchanger bottom, described the second temperature-sensing probe is placed in attemperater, described the second temperature-sensing probe is connected with described second controller by described insulated electric conductor, and described second controller is connected with described water pump by insulated electric conductor.
Air-conditioning unit, described air-conditioning unit comprises four-way change-over valve, the second compressor, coil pipe of air-conditioner blower, the second electric expansion valve, the second heat exchange coil, gas-liquid storage tank and three-way diverter valve, the c hole of described gas-liquid tank top is connected with wherein two interface end of described three-way diverter valve respectively with e hole, bottom, the 3rd interface end of described three-way diverter valve is connected with one end of described four-way change-over valve, other three interface end of described four-way change-over valve respectively with the suction of described the second compressor, exhaust end, described coil pipe of air-conditioner blower connects, the other end of described coil pipe of air-conditioner blower is connected with described the second electric expansion valve, the other end of described the second electric expansion valve is connected with described the second heat exchange coil, the other end of described the second heat exchange coil is connected with a hole of described gas-liquid tank bottom.
Hot water unit, described hot water unit comprises the first compressor, condenser, attemperater, the first electric expansion valve, the first heat exchange coil, gas-liquid storage tank, the first controller and the first temperature-sensing probe, the exhaust end of described the first compressor is connected with described condenser, described condenser is placed in described attemperater inside, the other end of described condenser is connected with described the first electric expansion valve, the other end of described the first electric expansion valve is connected with described the first heat exchange coil, the other end of described the first heat exchange coil is connected with the b hole of described gas-liquid tank top, the d hole of described gas-liquid tank top is connected with the suction end of described the first compressor, described the first temperature-sensing probe is placed in described attemperater, described the first temperature-sensing probe is connected with described the first controller by described insulated electric conductor, described the first controller is connected with described the first compressor by insulated electric conductor.
Further, described the first controller is according to the open and close of the first compressor described in the temperature signal control of described the first temperature-sensing probe; When water temperature in the attemperater of described hot water unit is during lower than preset temperature (60 ℃), described the first compressor is normally worked, and when water temperature in the attemperater of described hot water unit is during higher than preset temperature (60 ℃), described the first compressor quits work.
Further, described second controller, according to the temperature signal of described the second temperature-sensing probe, is controlled the operation of described water pump; Described second controller is provided with " winter ", " summer ", " spring and autumn " three gears, and " winter " shelves are the high-power shelves of constant flow; " summer " shelves are for temperature control variable-flow shelves, when water temperature in attemperater is during lower than preset temperature (60 ℃), and the operation of water pump small-power, when water temperature in attemperater is during higher than preset temperature (60 ℃), the high-power operation of water pump; Shelves opened/stopped shelves automatically for constant flow is high-power " spring and autumn ", when water temperature in attemperater is during lower than preset temperature (60 ℃), and the high-power operation of water pump, when water temperature in attemperater is during higher than preset temperature (60 ℃), water pump is out of service.When winter operation, described second controller is transferred to " winter " shelves; When summer operation, described second controller is transferred to " summer " shelves; When spring, autumn transition season move, described second controller is transferred to " spring and autumn " shelves.
The invention has the beneficial effects as follows, the present invention a kind ofly can realize the earth source heat pump combined supply system that single/double stage compression is switched, and can realize air conditioner refrigerating, heat supply, the whole year domestic water is provided, and the area cold in winter and hot in summer being particularly suitable on the south the Changjiang river is used; When summer air-conditioning refrigeration, the cycle fluid of air-conditioning unit evaporates absorbed heat in coil pipe of air-conditioner blower, a part offers hot water unit for hot water preparing, another part enters underground through ground source water unit, and it is the highest that energy utilization rate reaches, and system obtains dual efficiency, it is maximum that COP reaches, and reduce enter too much heat to underground, efficiently solve underground thermal buildup issue, make the operation that entirely source heat pump system can be efficient, energy-conservation, stable for a long time.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the schematic diagram of a kind of earth-source hot-pump system that can realize three alliances of the present invention.
In figure: 1, underground buried tube; 2, water pump; 3, the first compressor; 4, condenser; 5, the first electric expansion valve; 6, attemperater; 7, multifunctional heat exchanger; 8, four-way change-over valve; 9, the second compressor; 10, coil pipe of air-conditioner blower; 11, the second electric expansion valve; 12, the first temperature-sensing probe; 13, the second temperature-sensing probe; 14, the second heat exchange coil; 15, the first heat exchange coil; 16, gas-liquid storage tank; 17, insulated electric conductor; 18, the first controller; 19, second controller; 20, three-way diverter valve.
The specific embodiment
Below in conjunction with specific embodiment, further the present invention is set forth, should be understood that and quote embodiment only for the present invention is described, limit the scope of the invention and be not used in.
As shown in Figure 1, a kind of single/double stage compresses switchable earth source heat pump combined supply system, comprising:
Heat exchange unit, heat exchange unit comprises multifunctional heat exchanger 7, the second heat exchange coil 14, the gentle liquid storage tank 16 of the first heat exchange coil 15, the second heat exchange coil 14, the gentle liquid storage tank 16 of the first heat exchange coil 15 is placed in the inside of multifunctional heat exchanger 7, and gas-liquid storage tank 16 is placed on the upper space of multifunctional heat exchanger 7 inside, gas-liquid storage tank 16 bottoms are provided with a and e hole, top is respectively equipped with b, c, d hole, a hole is connected with the second heat exchange coil 14, the other end of the second heat exchange coil 14 stretches out the outer wall of multifunctional heat exchanger 7, b hole is connected with the first heat exchange coil 15, the other end of the first heat exchange coil 15 stretches out the outer wall of multifunctional heat exchanger 7, the outer wall of multifunctional heat exchanger 7 is stretched out respectively in c and e hole by copper pipe.
Ground source water unit, ground source water unit comprises underground buried tube 1, water pump 2, second controller 19 and the second temperature-sensing probe 13; Underground buried tube 1 outlet is communicated with the top of multifunctional heat exchanger 7 by water pump 2, underground buried tube 1 entrance is communicated with the bottom of multifunctional heat exchanger 7, the second temperature-sensing probe 13 is placed in attemperater 6, the second temperature-sensing probe 13 is connected with second controller 19 by insulated electric conductor 17, and second controller 19 is connected with water pump 2 by insulated electric conductor 17.
Air-conditioning unit, air-conditioning unit comprises four-way change-over valve 8, the second compressor 9, coil pipe of air-conditioner blower 10, the second electric expansion valve 11, the second heat exchange coil 14, gas-liquid storage tank 16 and three-way diverter valve 20; The c hole at gas-liquid storage tank 16 tops is connected with I, the III interface end of three-way diverter valve 20 respectively with e hole, bottom, the II interface end of three-way diverter valve 20 is connected with one end of four-way change-over valve 8, other three interface end of four-way change-over valve 8 are connected with suction, exhaust end, the coil pipe of air-conditioner blower 10 of the second compressor 9 respectively, the other end of coil pipe of air-conditioner blower 10 is connected with the second electric expansion valve 11, the other end of the second electric expansion valve 11 is connected with the second heat exchange coil 14, and the other end of the second heat exchange coil 14 is connected with a hole of gas-liquid storage tank 16 bottoms.
Hot water unit, hot water unit comprises the first compressor 3, condenser 4, attemperater 6, the first electric expansion valve 5, the first heat exchange coil 15, gas-liquid storage tank 16, the first controller 18 and the first temperature-sensing probe 12, the exhaust end of the first compressor 3 is connected with condenser 4, condenser 4 is placed in attemperater 6 inside, the other end of condenser 4 is connected with the first electric expansion valve 5, the other end of the first electric expansion valve 5 is connected with the first heat exchange coil 15, the other end of the first heat exchange coil 15 is connected with the b hole at gas-liquid storage tank 16 tops, the d hole at gas-liquid storage tank 16 tops is connected with the suction end of the first compressor 3, the first temperature-sensing probe 12 is placed in attemperater 6, the first temperature-sensing probe 12 is connected with the first controller 18 by insulated electric conductor 17, the first controller 18 is connected with the first compressor 3 by insulated electric conductor 17 again.
Heat exchange unit is combined ground source water unit, air-conditioning unit and hot water unit to carry out heat exchange, forms single/double stage and compresses switchable earth source heat pump combined supply system.
In a kind of specific embodiment, the first temperature-sensing probe 12 is transferred to the first controller 18, the first controllers 18 by insulated electric conductor 17 the temperature signal in attemperater 6 to carry out sending control instruction by insulated electric conductor 17 to the first compressor 3 after logic analysis to the temperature signal receiving; When the interior water temperature of attemperater 6 is during lower than preset temperature (60 ℃), the first compressor 3 is normally worked, and when the interior water temperature of attemperater 6 is during higher than preset temperature (60 ℃), the first compressor 3 quits work.
Further, the second temperature-sensing probe 13 is transferred to second controller 19 by insulated electric conductor 17 the temperature signal in attemperater 6, and second controller 19 carries out sending control instruction by insulated electric conductor 17 to water pump 2 after logic analysis to the temperature signal receiving; Second controller 19 is provided with " winter ", " summer ", " spring and autumn " three gears, and " winter " shelves are the high-power shelves of constant flow; " summer " shelves are for temperature control variable-flow shelves, when water temperature in attemperater 6 is during lower than preset temperature (60 ℃), and water pump 2 small-powers operations, when water temperature in attemperater 6 is during higher than preset temperature (60 ℃), the high-power operation of water pump 2; Shelves opened/stopped shelves automatically for constant flow is high-power " spring and autumn ", when water temperature in attemperater 6 is during lower than preset temperature (60 ℃), and the high-power operation of water pump 2, when water temperature in attemperater 6 is during higher than preset temperature (60 ℃), water pump 2 is out of service.When winter operation, second controller 19 is transferred to " winter " shelves; When summer operation, second controller 19 is transferred to " summer " shelves; When spring, autumn transition season move, second controller 19 is transferred to " spring and autumn " shelves.
The specific embodiment comprises:
Use pattern summer, air conditioner refrigerating is domestic hot-water processed simultaneously, second controller 19 is transferred to " summer " shelves, when the water temperature in attemperater 6 is during lower than preset temperature (60 ℃), the first temperature-sensing probe 12 in attemperater 6 is transferred to the first controller 18 by insulated electric conductor 17 temperature signal, the first controller 18 carries out sending control instruction by insulated electric conductor 17 to the first compressor 3 after logic analysis to the temperature signal receiving: the first compressor 3 is opened, the second temperature-sensing probe 13 in attemperater 6 is transferred to second controller 19 by insulated electric conductor 17 temperature signal, second controller 19 carries out sending control instruction by insulated electric conductor 17 to water pump 2 after logic analysis to the temperature signal receiving: water pump 2 small-power operations, now, the first compressor 3 is opened, water pump 2 small-power operations, the hot water unit course of work: the gas working medium in gas-liquid storage tank 16 enters the first compressor 3 through d hole, top, be compressed into the superheated vapor of HTHP, the superheated vapor of HTHP enters condenser 4 and is condensed into liquid refrigerant, condensation heat is for the water of heating and thermal insulation water tank 6 the insides, liquid refrigerant becomes gas-liquid two-phase working medium after the first electric expansion valve 5 throttlings, gas-liquid two-phase working medium enters the first heat exchange coil 15 and is condensed into supercooled liquid working medium by the water at low temperature in multifunctional heat exchanger 7, supercooled liquid working medium enters gas-liquid storage tank 16 through b hole, mix with original working medium in tank, hot water unit is periodic duty and so forth, the air-conditioning unit course of work: the saturated liquid refrigerant in gas-liquid storage tank 16 enters the second heat exchange coil 14 through a hole, bottom, saturated liquid refrigerant is condensed into supercooled liquid working medium by the water at low temperature in multifunctional heat exchanger 7, supercooled liquid working medium enters the second electric expansion valve 11, after throttling, become the gas-liquid two-phase working medium of low-temp low-pressure, the gas-liquid two-phase working medium of low-temp low-pressure enters coil pipe of air-conditioner blower 10 and absorbs the heat of room air and become gaseous working medium, gaseous working medium becomes all relatively high superheated vapors of temperature and pressure after the second compressor 9 compression, superheated vapor enters three-way diverter valve 20(II → III through four-way change-over valve 8) to e hole, enter again gas-liquid storage tank 16 and carry out abundant heat exchange with the liquid refrigerant in tank, gas after heat exchange, liquid working medium all becomes saturation state, saturated liquid refrigerant in gas-liquid storage tank 16 enters the second heat exchange coil 14 through a hole, bottom, air-conditioning unit is circular flow and so forth, under this operational mode, this system is Two-stage Compression earth-source hot-pump system, the cycle fluid of air-conditioning unit evaporates the heat of absorb room air in coil pipe of air-conditioner blower, and a part offers hot water unit for hot water preparing, and another part enters underground by ground source water unit, now, system obtains dual efficiency, and it is maximum that COP reaches, and effectively reduces and enter too much heat to underground.When the water temperature in attemperater 6 is during higher than preset temperature (60 ℃), the first controller 18 sends instruction according to the temperature signal of the first temperature-sensing probe 12 to the first compressor 3: the first compressor 3 is out of service, and second controller 19 sends instruction according to the temperature signal of the second temperature-sensing probe 13 to water pump 2: water pump 2 switches to high-power operation by small-power; Now, hot water unit is out of service, and air-conditioning unit continues normal work for indoor refrigeration.
Use in winter pattern, air-conditioning heat supply is water heating simultaneously, second controller 19 is transferred to " winter " shelves, and the four-way change-over valve 8 of air-conditioning unit changes direction, and three-way diverter valve 20 also changes direction (I → II), when the water temperature in attemperater 6 is during lower than preset temperature (60 ℃), the first controller 18 sends instruction according to the temperature signal of the first temperature-sensing probe 12 to the first compressor 3: the first compressor 3 is opened, and second controller 19 sends instruction according to the temperature signal of the second temperature-sensing probe 13 to water pump 2: the high-power operation of water pump 2, now, the first compressor 3 is opened, the high-power operation of water pump 2, the hot water unit course of work: the gas working medium in gas-liquid storage tank 16 enters the first compressor 3 through d hole, top, be compressed into the superheated vapor of HTHP, the superheated vapor of HTHP enters condenser 4 and is condensed into liquid refrigerant, condensation heat is for the water of heating and thermal insulation water tank 6 the insides, liquid refrigerant becomes the gas-liquid two-phase working medium of low-temp low-pressure after the first electric expansion valve 5 throttlings, the gas-liquid two-phase working medium of low-temp low-pressure becomes gaseous working medium after entering the heat that the first heat exchange coil 15 absorbs water in multifunctional heat exchanger 7, gaseous working medium enters gas-liquid storage tank 16 through b hole, mix with gas working medium in tank, hot water unit is periodic duty and so forth, the air-conditioning unit course of work: the gas working medium in gas-liquid storage tank 16 enters three-way diverter valve 20(I → II through c hole), enter the second compressor 9 through four-way change-over valve 8 again, be compressed into the superheated vapor of HTHP, the superheated vapor of HTHP enters coil pipe of air-conditioner blower 10 and is condensed into liquid refrigerant, condensation heat is for indoor heating, liquid refrigerant becomes the gas-liquid two-phase working medium of low-temp low-pressure after the second electric expansion valve 11 throttlings, the gas-liquid two-phase working medium of low-temp low-pressure becomes gaseous working medium after entering the heat that the second heat exchange coil 14 absorbs multifunctional heat exchanger 7 interior water, enter gas-liquid storage tank 16 through a hole again, mix with the interior working medium of gas-liquid storage tank 16, air-conditioning unit is periodic duty and so forth, now, hot water unit and air-conditioning unit are two single stage compress earth-source hot-pump systems in parallel, and the low-temperature heat source of hot water unit and air-conditioning unit is all the heat obtaining from underground from ground source water unit.When the water temperature in attemperater 6 is during higher than preset temperature (60 ℃), the first controller 18 sends instruction according to the temperature signal of the first temperature-sensing probe 12 to the first compressor 3: the first compressor 3 is out of service, now, hot water unit is out of service, and air-conditioning unit continues normal work for indoor heating.
Use pattern in spring, autumn, only need hot water preparing; Second controller 19 is transferred to " spring and autumn " shelves, when the water temperature in attemperater 6 is during lower than preset temperature (60 ℃), the first controller 18 sends instruction according to the temperature signal of the first temperature-sensing probe 12 to the first compressor 3: the first compressor 3 is opened, and second controller 19 sends instruction according to the temperature signal of the second temperature-sensing probe 13 to water pump 2: the high-power operation of water pump 2; Now, hot water unit is normally worked, and air-conditioning unit is not worked, the hot water unit course of work and above-mentioned winter the hot water unit course of work basic identical; When the water temperature in attemperater 6 is during higher than preset temperature (60 ℃), the first controller 18 sends instruction according to the temperature signal of the first temperature-sensing probe 12 to the first compressor 3: the first compressor 3 is out of service, and second controller 19 sends instruction according to the temperature signal of the second temperature-sensing probe 13 to water pump 2: water pump 2 is out of service.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (3)
1. single/double stage compresses a switchable earth source heat pump combined supply system, it is characterized in that comprising:
Heat exchange unit, described heat exchange unit comprises multifunctional heat exchanger (7), the first heat exchange coil (15), the gentle liquid storage tank of the second heat exchange coil (14) (16), the first heat exchange coil (15), the gentle liquid storage tank of the second heat exchange coil (14) (16) is placed in the inside of multifunctional heat exchanger (7), and gas-liquid storage tank (16) is placed on the inner upper space of multifunctional heat exchanger (7), gas-liquid storage tank (16) bottom is provided with a and e hole, top is respectively equipped with b, c, d hole, a hole is connected with the second heat exchange coil (14), the other end of the second heat exchange coil (14) stretches out the outer wall of multifunctional heat exchanger (7), b hole is connected with the first heat exchange coil (15), the other end of the first heat exchange coil (15) stretches out the outer wall of multifunctional heat exchanger (7), the outer wall of multifunctional heat exchanger (7) is stretched out respectively in c and e hole by copper pipe.
Ground source water unit, described ground source water unit comprises underground buried tube (1), water pump (2), second controller (19) and the second temperature-sensing probe (13); Underground buried tube (1) outlet is communicated with the top of multifunctional heat exchanger (7) by water pump (2), underground buried tube (1) entrance is communicated with the bottom of multifunctional heat exchanger (7), the second temperature-sensing probe (13) is placed in attemperater (6), the second temperature-sensing probe (13) is connected with second controller (19) by insulated electric conductor (17), and second controller (19) is connected with water pump (2) by insulated electric conductor (17).
Air-conditioning unit, described air-conditioning unit comprises four-way change-over valve (8), the second compressor (9), coil pipe of air-conditioner blower (10), the second electric expansion valve (11), the second heat exchange coil (14), gas-liquid storage tank (16) and three-way diverter valve (20), the c hole at gas-liquid storage tank (16) top and e hole, bottom respectively with the I of three-way diverter valve (20), III interface end connects, the II interface end of three-way diverter valve (20) is connected with one end of four-way change-over valve (8), other three interface end of four-way change-over valve (8) respectively with the suction of the second compressor (9), exhaust end, coil pipe of air-conditioner blower (10) connects, the other end of coil pipe of air-conditioner blower (10) is connected with the second electric expansion valve (11), the other end of the second electric expansion valve (11) is connected with the second heat exchange coil (14), the other end of the second heat exchange coil (14) is connected with a hole of gas-liquid storage tank (16) bottom.
Hot water unit, described hot water unit comprises the first compressor (3), condenser (4), attemperater (6), the first electric expansion valve (5), the first heat exchange coil (15), gas-liquid storage tank (16), the first controller (18) and the first temperature-sensing probe (12), the exhaust end of the first compressor (3) is connected with condenser (4), condenser (4) is placed in attemperater (6) inside, the other end of condenser (4) is connected with the first electric expansion valve (5), the other end of the first electric expansion valve (5) is connected with the first heat exchange coil (15), the other end of the first heat exchange coil (15) is connected with the b hole at gas-liquid storage tank (16) top, the d hole at gas-liquid storage tank (16) top is connected with the suction end of the first compressor (3), the first temperature-sensing probe (12) is placed in attemperater (6), the first temperature-sensing probe (12) is connected with the first controller (18) by insulated electric conductor (17), the first controller (18) is connected with the first compressor (3) by insulated electric conductor (17) again.
2. a kind of single/double stage as claimed in claim 1 compresses switchable earth source heat pump combined supply system, it is characterized in that: described second controller (19) is controlled the operation of described water pump (2) according to the temperature signal of described the second temperature-sensing probe (13), described second controller (19) is provided with " winter ", " summer ", " spring and autumn " three control gears.
3. a kind of single/double stage as claimed in claim 1 compresses switchable earth source heat pump combined supply system, it is characterized in that: described the first controller (18) is controlled the operation of described the first compressor (3) according to the temperature signal of described the first temperature-sensing probe (12).
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| CN201410122848.1A CN103868281B (en) | 2014-03-28 | 2014-03-28 | A kind of single/double stage compresses switchable tri-generation system of ground-source heat pump |
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| CN201410122848.1A CN103868281B (en) | 2014-03-28 | 2014-03-28 | A kind of single/double stage compresses switchable tri-generation system of ground-source heat pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104197583A (en) * | 2014-09-18 | 2014-12-10 | 山东宏力热泵能源股份有限公司 | Combined internal switching ground-source heat pump |
| CN107514830A (en) * | 2016-06-18 | 2017-12-26 | 上海春至新能源科技有限公司 | A kind of single multi-stage compression automatic conversion Multifunctional heat pump system |
| CN110425747A (en) * | 2019-08-01 | 2019-11-08 | 广东志高暖通设备股份有限公司 | A kind of variable frequency pump control method suitable for frequency conversion heat pump water heater |
| CN111795519A (en) * | 2020-06-16 | 2020-10-20 | 普泛能源技术研究院(北京)有限公司 | Absorption type circulating multifunctional heat exchanger |
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