CN210014503U - Heat exchange device and heat pump air conditioning system with same - Google Patents
Heat exchange device and heat pump air conditioning system with same Download PDFInfo
- Publication number
- CN210014503U CN210014503U CN201920626103.7U CN201920626103U CN210014503U CN 210014503 U CN210014503 U CN 210014503U CN 201920626103 U CN201920626103 U CN 201920626103U CN 210014503 U CN210014503 U CN 210014503U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- port
- heat
- control valve
- interface
- 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.)
- Active
Links
Images
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a heat exchange device and a heat pump air conditioning system with the same, wherein the heat exchange device comprises a three-medium heat exchanger, a circulating pump, a control valve and an external interface, and simultaneously realizes the switching control and the high-efficiency heat exchange of three medium channels of refrigerant _ water _ air; the heat pump air-conditioning system comprises an outdoor unit, a heat exchange device, an indoor air-conditioning terminal and an energy storage and heat exchange terminal, integrates the advantages of a split air conditioner, a multi-connected fluorine machine and a multi-connected water machine system, and simply achieves the purposes of environmental protection, energy conservation, rapid temperature adjustment, low noise and high comfort level of the heat pump air-conditioning system.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, in particular to heat transfer device and have its heat pump air conditioning system.
Background
The existing air conditioning system comprises an outdoor unit and an indoor unit, and the structural form is generally 1 to 1 split air conditioner and 1 to more central air conditioners; the indoor machine of the split air conditioner is a single refrigerant machine with a refrigerant _ air two-medium heat exchanger structure, and heat exchange media of a central air conditioner pipeline are divided into a fluorine system and a water system: the fluorine system is a multi-terminal phase change direct expansion type multi-split air conditioner with two media heat exchange of outdoor unit air-refrigerant and indoor unit refrigerant-air, and the water system is a multi-terminal liquid circulation type multi-split air conditioner with primary heat exchange of outdoor unit air (or water) -refrigerant, secondary heat exchange of refrigerant-water and two media heat exchange of indoor unit water-air; in the three types of air conditioning systems: the single refrigerant machine is easy to install, the room temperature adjusting speed is high, the operation control is simple, stable and efficient, but the number of outdoor units is large, the installation is dispersed, the noise influence is large, and the indoor comfort level is poor; the multi-refrigerant outdoor unit is installed in a centralized manner, the room temperature adjusting speed is high, the noise control is good, the indoor comfort level is good, but the field installation requirement is high, the refrigerant charging amount is large, the leakage is easy, the operation control is complex, and the stability is low; the outdoor unit of the multi-water-supplying machine is installed in a centralized manner, the field installation requirement is low, a refrigerant is not easy to leak, the environment is protected, the safety is high, the noise control is good, the indoor comfort level is good, but due to the existence of secondary heat exchange, a plurality of pump valve components are provided, the operation efficiency is low, and the room temperature regulation speed is low; how to overcome the disadvantages of the existing three types of air conditioning systems and integrate the advantages of the three types of systems, and design a simple, high-efficiency, low-noise and high-comfort air conditioning system, which is the research direction of technicians in the field; the previously filed chinese patent application 201821519297.2 discloses a three-medium heat exchanger structure, which can simultaneously realize direct, non-obstruction and efficient heat exchange between two media, namely refrigerant _ water _ air, and can replace two ordinary two-medium heat exchangers, reduce the number of heat exchangers and electromagnetic valves, and reduce the complexity of the system.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to provide a simple and reliable heat exchange device on one hand, and realize the circulation control and the high-efficiency heat exchange of three medium channels of refrigerant _ water _ air at the same time; on the other hand, the heat pump air conditioning system overcomes the defects of the existing air conditioning system, integrates the advantages of a multi-split air conditioner, a split air conditioner and a water machine, and simply achieves the purposes of environmental protection, energy conservation, rapid temperature regulation, low noise and high comfort level of the heat pump air conditioning system.
In order to achieve the above object, in one aspect, the utility model provides a heat exchange device, this heat exchange device include three medium heat exchangers, first external tapping, the outer interface of second, the outer interface of third, fourth external tapping, circulating pump, three medium heat exchangers include first medium passageway, second medium passageway, third medium passageway, equal direct heat transfer between two liang of passageways among these three medium passageways, first external tapping, the outer interface of second respectively with first medium passageway's first port, second port correspond the intercommunication, the outer interface of third with the first interface intercommunication of circulating pump, the second interface of circulating pump with the first port intercommunication of third medium passageway, the outer interface of fourth with the second port of third medium passageway corresponds the intercommunication.
Preferably, the heat exchange device further comprises a fifth external interface, a first control valve and a second control valve, wherein the fifth external interface is communicated with the first interface of the circulating pump through the first control valve, and the fifth external interface is also communicated with the second interface of the circulating pump through the second control valve.
Furthermore, the heat exchange device further comprises a third control valve and a fourth control valve, wherein two ends of the third control valve are respectively communicated with the first interface of the circulating pump and the first port of the third medium channel, and the fourth control valve is serially connected between the second interface of the circulating pump and the first port of the third medium channel.
Preferably, the heat exchange device further comprises a fifth external interface and a first three-way control valve, wherein the first interface, the second interface and the third interface of the first three-way control valve are respectively and correspondingly communicated with the first interface, the fifth external interface and the second interface of the circulating pump.
Furthermore, the heat exchange device further comprises a second three-way control valve, the second three-way control valve is arranged between the second interface of the circulating pump and the first port of the third medium channel in series, and the first interface, the second interface and the third interface of the second three-way control valve are respectively communicated with the first interface of the circulating pump, the second interface of the circulating pump and the first port of the third medium channel correspondingly.
Preferably, the heat exchange device further comprises a fan or a circulating pump arranged in the second medium channel to enhance circulation of the corresponding gas or liquid heat exchange medium in the second medium channel and improve heat exchange efficiency.
On the other hand, the utility model provides a heat pump air conditioning system, terminal, heat transfer device including off-premises station, indoor air conditioner, heat transfer device is aforementioned arbitrary heat transfer device, two circulation interfaces of off-premises station respectively with heat transfer device's first external tapping, the second external tapping correspond the intercommunication, constitute source end heat transfer circulation, two terminal circulation interfaces of indoor air conditioner respectively with heat transfer device's third external tapping, fourth external tapping correspond the intercommunication, constitute the terminal heat transfer circulation of user, the terminal quantity of indoor air conditioner is 1 at least.
Preferably, the heat pump air conditioning system further comprises an energy storage and heat exchange tail end, and a first port and a second port of the energy storage and heat exchange tail end are respectively and correspondingly communicated with a fifth external interface and a fourth external interface of the heat exchange device to form an energy storage and heat exchange circulation loop.
Furthermore, the energy storage and heat exchange tail end is one or a combination of a plurality of energy storage buffer tanks, a living heat exchange water tank and an energy storage radiation heat exchange tail end.
Further, the outdoor unit comprises a gas refrigerant interface, a liquid refrigerant interface, a throttling device, an outdoor heat exchanger, a four-way reversing valve and a compressor, wherein the liquid refrigerant interface, the throttling device, the outdoor heat exchanger, the four-way reversing valve, the compressor and the gas refrigerant interface are sequentially connected to form a source end outdoor unit part of the heat pump cycle.
Preferably, the outdoor heat exchanger is any one of the heat exchange devices.
Advantageous effects
On the one hand the utility model provides a pair of heat transfer device, owing to adopt the three medium heat exchangers of direct no hindrance high-efficient heat transfer between two liang of passageways to be the core component, this heat transfer device pump valve part is few, the pipeline is simple, carries out when realizing refrigerant _ air heat transfer carry on refrigerant _ water heat transfer, refrigerant _ air heat transfer carry on when water _ air heat transfer carry on various heat exchange modes such as water _ refrigerant heat transfer when water _ air heat transfer.
On the other hand the utility model provides a pair of heat pump air conditioning system including aforementioned heat transfer device, an outdoor unit traction heat transfer device, many indoor air conditioning terminal and the terminal high-efficient operation of stable of energy storage heat transfer, through right the switching control of outdoor unit compressor, heat transfer device internal pump valve, indoor set circulation circuit simply realizes the compound complementary of two kinds of systems of refrigerant-wind direct expansion circulation, the comfortable refrigerant-water-air cycle of environmental protection that energy-conserving quick adjusted temperature: the refrigerant filling amount is small, the field installation requirement is low, the noise is low, the cost is low, the energy is saved, the environment is protected, and the comfort level is high.
Drawings
Fig. 1 is a schematic structural view of a heat exchange device in embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of another heat exchange device in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of an outdoor unit in embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a heat pump air conditioning system in embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of a heat pump air conditioning system in embodiment 3 of the present invention;
fig. 6 is a schematic view of a heat pump air conditioning system in a refrigeration (heating) buffer energy storage mode cycle in embodiment 3 of the present invention;
fig. 7 is a schematic view of a high-load refrigeration (heating) mode cycle of a heat pump air conditioning system according to embodiment 3 of the present invention;
fig. 8 is a schematic view of a heat pump air conditioning system according to embodiment 3 of the present invention in a simultaneous cooling and defrosting and heating mode cycle;
fig. 9 is a schematic structural diagram of a heat pump air conditioning system in embodiment 4 of the present invention.
Reference numerals:
1. a heat exchange device; 11. a three-medium heat exchanger; 111. a first medium passage; 112. a second medium passage; 113. a third medium passage; 101. a first external interface; 102. a second external interface; 103. a third external interface; 104. a fourth external interface; 105. a fifth external interface; 12. a circulation pump; 131. a first control valve; 132. a second control valve; 133. a third control valve; 134. a fourth control valve; 135. a first three-way control valve; 136. a second three-way control valve; 14. A fan; 2. an outdoor unit; 21. an outdoor heat exchanger; 22. a compressor; 23. a throttling device; 24. a four-way reversing valve; 251. a gas refrigerant interface; 252. a liquid refrigerant interface; 31. An indoor air conditioner terminal; 32. and (4) an energy storage heat exchange end.
Detailed Description
In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be clearly described below by combining with the drawings in the utility model; in the description of the present invention, unless otherwise specified, the ordinal relation of the terms "first", "second", etc., are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular sequence, and therefore should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a heat exchange device, the heat exchange device includes a three-medium heat exchanger (11), a first external interface (101), a second external interface (102), a third external interface (103), and a fourth external interface (104), the three-medium heat exchanger (11) includes a first medium channel (111), a second medium channel (112), and a third medium channel (113), each two of the three medium channels directly exchange heat, the first external interface (101) and the second external interface (102) are respectively communicated with a first port and a second port of the first medium channel (111), the third external interface (103) and the fourth external interface (104) are respectively communicated with a first port and a second port of the third medium channel (113), the third external interface (103) is communicated with the first interface of a circulation pump (12), the second interface of the circulation pump (12) is communicated with the first port of the third medium channel (113), the fourth external interface (104) is correspondingly communicated with the second port of the third medium channel (113).
The heat exchange device also comprises a fan (14) arranged in the second medium channel (112) so as to enhance air circulation in the second medium channel (112) and improve heat exchange efficiency.
Because the heat exchange is directly carried out between every two channels of the three-medium heat exchanger (11), the refrigerant circulating in the first external interface (101), the first medium channel (111) and the second external interface (102) exchanges heat with the air medium driven by the fan (14) in the second medium channel (112), and meanwhile, the refrigerant also exchanges heat with the liquid medium in the third medium channel (113) driven by the circulating pump (12).
The heat exchange device further comprises a fifth external interface (105), a first control valve (131) and a second control valve (132), wherein the fifth external interface (105) is communicated with a first interface of the circulating pump (12) through the first control valve (131), and the fifth external interface (105) is communicated with a second interface of the circulating pump (12) through the second control valve (132).
The heat exchange device further comprises a third control valve (133) and a fourth control valve (134), wherein two ends of the third control valve (133) are respectively communicated with a first interface of the circulating pump (12) and a first port of the third medium channel (113), and the fourth control valve (134) is arranged between a second interface of the circulating pump (12) and the first port of the third medium channel (113) in series.
Therefore, the first control valve (131), the second control valve (132), the third control valve (133) and the fourth control valve (134) are opened or closed, the operation or the stop of the fan (14) is matched, and the first control valve, the second control valve, the third control valve and the fourth control valve can be combined with the circulating pump (12) to form various different circulating paths and circulating directions to adapt to different heat exchange requirements.
In the present embodiment 1, another heat exchange device structure shown in fig. 2 is different from the former heat exchange device in that a first three-way control valve (135) is used to equivalently replace a first control valve (131) and a second control valve (132), and a second three-way control valve (136) is used to equivalently replace a third control valve (133) and a fourth control valve (134); a first interface, a second interface and a third interface of the first three-way control valve (135) are respectively and correspondingly communicated with a first interface, a fifth external interface (105) of the circulating pump (12) and a second interface of the circulating pump (12); the second three-way control valve (136) is arranged between a second interface of the circulating pump (12) and a first port of the third medium channel (113) in series, and a first interface, a second interface and a third interface of the second three-way control valve (136) are correspondingly communicated with the first interface of the circulating pump (12), the second interface of the circulating pump (12) and the first port of the third medium channel (113) respectively.
The heat exchange device with the structure has the same function as the previous heat exchange device, is more reliable to control and has lower cost.
In this embodiment 1 two kinds of structure pipelines of heat transfer device are simple, the pump valve part is few, two ordinary two medium heat exchangers of a heat transfer device fungible, heat exchanger and solenoid valve quantity reduce, and pump valve pipeline switching control is simple reliable, can realize carrying out various heat exchange modes such as water _ air heat transfer when carrying out refrigerant _ water heat transfer, carrying out water _ air heat transfer when refrigerant _ air heat transfer, water _ air heat transfer when carrying out water _ refrigerant heat transfer.
Example 2
As shown in fig. 3 and 4, the present embodiment 2 provides a heat pump air conditioning system, which includes an outdoor unit (2), an indoor air conditioning terminal (31), and a heat exchange device (1), where the heat exchange device (1) is the heat exchange device described in embodiment 1, and the heat exchange device (1) includes a three-medium heat exchanger (11), a circulation pump (12), a fan (14), a first external interface (101), a second external interface (102), a third external interface (103), and a fourth external interface (104).
The internal structure of the outdoor unit (2) is shown in fig. 3: the outdoor unit (2) comprises a gas refrigerant interface (251), a liquid refrigerant interface (252), a throttling device (23), an outdoor heat exchanger (21), a four-way reversing valve (24) and a compressor (22), wherein the liquid refrigerant interface (252), the throttling device (23), the outdoor heat exchanger (21), the four-way reversing valve (24), the compressor (22) and the gas refrigerant interface (251) are sequentially connected to form an outdoor unit part of a heat pump cycle.
A gas refrigerant interface (251) and a liquid refrigerant interface (252) of the outdoor unit (2) are respectively communicated with a first external interface (101) and a second external interface (102) of the heat exchange device (1) correspondingly to form a source end heat exchange cycle.
Two circulation interfaces of the indoor air conditioner terminal (31) are respectively and correspondingly communicated with a third external interface (103) and a fourth external interface (104) of the heat exchange device (1) to form a heat exchange circulation of the user terminal, and the number of the indoor air conditioner terminals (31) is at least 1.
When the heat pump air conditioning system in embodiment 2 operates, the outdoor unit (2) and the first medium channel (111) of the three-medium heat exchanger (11) form a refrigerant cycle, the refrigerant cycle efficiently exchanges heat with air in the second medium channel (112) driven by the fan (14), the ambient temperature of the main area where the heat exchange device (1) is located is rapidly adjusted, meanwhile, the refrigerant cycle also efficiently exchanges heat with a liquid heat exchange medium in the third medium channel (113) driven by the circulating pump (12), the liquid heat exchange medium adjusts the ambient temperature of the sub-area where the indoor air conditioner terminal (31) is located through the indoor air conditioner terminal (31), the comfort level of the sub-area is high, the rotating speeds of the compressor (22), the fan (14) and the circulating pump (12) are adjusted and changed according to the actual needs of the main area and the sub-area, and the heat exchange amounts of the first medium channel (111) and the second medium channel (112) and the third medium channel (113), the air conditioner meets different air conditioner requirements of fast and efficient main area and mute and comfort zone division.
Example 3
As shown in fig. 5, 6, 7 and 8, in this embodiment 3, a heat pump air conditioning system is provided, the system includes an outdoor unit (2), a heat exchanger (1) and an indoor air conditioning terminal (31), and the heat exchanger (1) is the heat exchanger described in embodiment 1.
The heat pump air conditioning system outdoor unit (2), indoor air conditioning terminal (31) and piping connections are the same as in embodiment 2.
The heat pump air conditioning system is different from the foregoing embodiment 2 in that: the heat exchange device (1) comprises a three-medium heat exchanger (11), a circulating pump (12), a fan (14), a first control valve (131), a second control valve (132), a third control valve (133), a fourth control valve (134), a first external interface (101), a second external interface (102), a third external interface (103), a fourth external interface (104) and a fifth external interface (105).
It also differs from the foregoing embodiment 2 in that: the heat pump air conditioning system also comprises an energy storage and heat exchange tail end (32); a first port and a second port of the energy storage heat exchange tail end (32) are respectively and correspondingly communicated with a fifth external interface (105) and a fourth external interface (104) of the heat exchange device (1) to form an energy storage heat exchange circulation loop; the energy storage heat exchange tail end (32) is one or the combination of a plurality of energy storage buffer tanks, a living heat exchange water tank and an energy storage radiation heat exchange tail end.
The actual operation mode of the heat pump air conditioning system comprises the following steps:
1. as shown in fig. 6, the outdoor unit (2) and the first medium channel (111) of the three-medium heat exchanger (11) form a refrigerant cycle, in this mode, the three-medium heat exchanger (11) serves as a refrigeration evaporator (heating condenser), an evaporated (condensed) refrigerant in the first medium channel (111) directly exchanges heat with air in the second medium channel (112) driven by the fan (14), so as to achieve the purpose of rapidly cooling (warming) the environment in the main area where the heat exchange device (1) is located, and simultaneously, the evaporated (condensed) refrigerant also efficiently exchanges heat with a liquid heat exchange medium in the third medium channel (113) driven by the circulating pump (12), and because the temperature difference of primary heat exchange is large, the energy efficiency is high, the main area has high heat exchange strength, fast temperature adjustment speed, energy saving and high efficiency.
Under this mode, after liquid heat transfer medium is cooled down (intensification) in third medium passageway (113), partly through fourth control valve (134), circulating pump (12), get into indoor air conditioner end (31), get back to again and exchange heat cooling (intensification) in third medium passageway (113) after the air heat transfer with the subregion of indoor air conditioner end (31) place, begin next round circulation, because the difference in temperature of secondary heat transfer is less, this subregion wind feel is soft, the comfort level is high, the noise influence is low.
In the mode, the other part of the liquid heat exchange medium enters the energy storage and heat exchange tail end (32) through the fourth control valve (134), the circulating pump (12) and the first control valve (131), the liquid heat exchange medium with higher (lower) temperature in the energy storage and heat exchange tail end (32) returns to the third medium channel (113) again for heat exchange and temperature reduction (temperature rise), the next round of circulation is started, the temperature in the energy storage and heat exchange tail end (32) is gradually reduced (raised), and the energy storage and buffering functions are realized during refrigeration (heating); in this mode, the second control valve (132) and the third control valve (133) are in a closed state, and the first control valve (131) and the fourth control valve (134) are in an open state.
In the mode, the refrigerant flow direction of the four-way reversing valve (24) is switched according to actual needs, the three-medium heat exchanger (11) can be changed to be used as a refrigeration evaporator or a heating condenser, and the refrigeration and heating functions are switched.
In the mode, the rotating speeds of the fan (14), the circulating pump (12) and the compressor (22) are adjusted according to actual requirements, and the proportion of the distribution of the refrigeration (heat) quantity of the main area, the subarea and the energy storage heat exchange tail end (32) can be changed.
In the mode, the opening or the closing of the first control valve (131) and the fourth control valve (134) are regulated and controlled according to actual requirements, and the operation or the stop of the refrigeration (heating) circulation of the subarea and the energy storage heat exchange tail end (32) can be changed.
The mode can realize rapid refrigeration (heating), comfortable energy-saving temperature regulation and stable and reliable energy storage buffering.
2. High load cooling (heating) mode, as shown in fig. 7:
in the mode, the energy storage heat exchange tail end (32) serves as a supplementary cold and heat source and the heat exchange device (1) together provide cold (heat) for the main area and the subarea, and the high-load refrigerating (heating) requirement of the whole system in a certain time period is met.
In this mode, the first control valve (131) and the third control valve (133) of the heat exchanger (1) are closed, and the second control valve (132) and the fourth control valve (134) are opened.
In the mode, low-temperature (high-temperature) liquid heat exchange media stored at the energy storage heat exchange tail end (32) are converged at the inlet end of the circulating pump (12) through the second control valve (132) and the liquid heat exchange media cooled (heated) in the third medium channel (113) through the fourth control valve (134), the liquid heat exchange media are driven by the circulating pump (12) to completely enter the indoor air conditioner tail end (31) for heat exchange, the liquid heat exchange media heated (cooled) are divided into two parts and respectively enter the energy storage heat exchange tail end (32) and the third medium channel (113) again to be cooled (heated) to form circulation.
In the mode, the rotating speeds of the fan (14), the circulating pump (12) and the compressor (22) are adjusted, the refrigerating (heating) quantity distribution proportion of the main area where the heat exchange device (1) is located and the subarea where the indoor air conditioner tail end (31) is located can be changed, and the temperature adjustment of rapid refrigeration (heating), comfort and energy conservation under high load is realized.
In the mode, the operation principle and the control method of the outdoor unit (2) and the indoor air conditioner terminal (31) are the same as those of the refrigeration (heating) energy storage buffer mode, and the details are not repeated.
3. The mode of heating while defrosting without cooling is shown in fig. 8:
in the mode, the energy storage and heat exchange tail end (32) serves as a heat source of the whole system, the three-medium heat exchanger (11) is a heat absorption evaporator during outdoor unit defrosting and is also a condenser for releasing heat of a main area where the heat exchange device (1) is located, and the indoor air conditioner tail end (31) releases heat for a sub-area where the heat exchange device is located.
In this mode, the first control valve (131) and the fourth control valve (134) of the heat exchanger (1) are in a closed state, and the second control valve (132) and the third control valve (133) are in an open state.
In the mode, a high-temperature liquid heat exchange medium stored at the energy storage heat exchange tail end (32) enters the circulating pump (12) through the second control valve (132), and is divided into two parts after being driven by the circulating pump (12), wherein one part directly enters the indoor air conditioner tail end (31) for heat exchange, so that the indoor air conditioner tail end (31) is heated in the partition where the indoor air conditioner tail end (31) is located; the other part of the refrigerant enters a third medium channel (113) of the three-medium heat exchanger (11) through a third control valve (133), and exchanges heat with the evaporating refrigerant circulating in the first medium channel (111) and the indoor air of the second medium channel (112) respectively; at the moment, the first medium channel (111) and the third medium channel (113) perform evaporation heat exchange to serve as a heat source for reverse defrosting of a refrigerant of the outdoor unit (2) to finish defrosting of the outdoor heat exchanger (21), meanwhile, the third medium channel (113) performs heat exchange with the second medium channel (112), air in a main area where the heat exchange device (1) is located is heated, and the heat exchange device (1) is kept from cooling or heating the air in the main area.
In the mode, the rotating speeds of the fan (14) and the circulating pump (12) are adjusted, the heating quantity distribution proportion of the main area where the heat exchange device (1) is located and the subarea where the indoor air conditioner tail end (31) is located can be changed, and the purpose of defrosting of the outdoor unit while the indoor main area and the subarea are not cooled and heated is achieved.
In the mode, the refrigerant flow direction of the four-way reversing valve (24) is switched, the outdoor heat exchanger (21) serves as a condenser, and the outdoor unit (2) operates a defrosting program.
The heat pump air-conditioning system of the embodiment 3 adopts a system structure that one outdoor unit (2) drags a plurality of indoor air-conditioning terminals (31) and an energy storage heat exchange terminal (32) through one heat exchange device (1), the composite complementation of two systems of energy-saving and rapid temperature adjustment refrigerant-air direct expansion circulation and environment-friendly and comfortable refrigerant-water-air circulation is simply realized, the heat pump air-conditioning system has the effects of small system refrigerant filling amount, low field installation requirement, low noise, low cost, stable and efficient operation and simultaneous heating without temperature reduction and defrosting, and the purposes of stability, energy conservation, environmental protection and comfort are achieved through simple switching control of a compressor (22) of the outdoor unit (2), a pump valve of the heat exchange device and an indoor circulation loop.
Example 4
As shown in fig. 9, this embodiment 4 provides a heat pump air conditioning system, which includes an outdoor unit (2), a heat exchanger (1), and an indoor air conditioning terminal (31), where the heat exchanger (1) is the heat exchanger described in embodiment 1.
The heat pump air conditioning system heat exchange device (1) and the indoor air conditioning terminal (31) are the same in structure and pipeline connection as those in the embodiment 2.
The heat pump air conditioning system is different from the foregoing embodiment 2 in that: an outdoor heat exchanger (21) of an outdoor unit (2) is the heat exchange device described in embodiment 1, a liquid refrigerant interface (252) of the outdoor unit (2), a throttling device (23), a first medium channel (111) of the outdoor heat exchanger (21), a four-way reversing valve (24), a compressor (22), and a gas refrigerant interface (251) are sequentially connected to form an outdoor unit part of a heat pump cycle, and a third medium channel (113) of the outdoor heat exchanger (21) is communicated with an external heat source through a circulation pump of the outdoor heat exchanger (21).
The structure management of the user side of the heat pump air conditioning system is the same as that of the embodiment 2, and the connection and operation processes are not described again.
Because the outdoor heat exchanger (21) of the heat pump air-conditioning system has the function of directly exchanging heat between every two of three media, on one hand, the heat pump air-conditioning system can respectively or simultaneously utilize multiple cold and heat sources such as air, water, solar energy and the like, thereby meeting the use requirements under various environments, and having the advantages of energy conservation, high efficiency and environmental protection; on the other hand, the heat pump air conditioning system can recover the condensation waste heat of the outdoor unit (2) during cooling.
The three-medium heat exchanger disclosed in the earlier filed chinese patent application 201821519297 can satisfy the functional requirements of the three-medium heat exchanger of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A heat exchange device is characterized by comprising a three-medium heat exchanger, a first external interface, a second external interface, a third external interface, a fourth external interface and a circulating pump, wherein the three-medium heat exchanger comprises a first medium channel, a second medium channel and a third medium channel, heat exchange is directly performed between every two of the three medium channels, the first external interface and the second external interface are respectively communicated with a first port and a second port of the first medium channel correspondingly, the third external interface is communicated with a first interface of the circulating pump, a second interface of the circulating pump is communicated with a first port of the third medium channel, and the fourth external interface is communicated with a second port of the third medium channel correspondingly.
2. The heat exchange device of claim 1, further comprising a fifth external port, a first control valve, and a second control valve, wherein the fifth external port is in communication with the first port of the circulation pump via the first control valve, and the fifth external port is also in communication with the second port of the circulation pump via the second control valve.
3. The heat exchange device according to claim 2, further comprising a third control valve and a fourth control valve, wherein two ends of the third control valve are respectively communicated with the first interface of the circulation pump and the first port of the third medium channel, and the fourth control valve is arranged between the second interface of the circulation pump and the first port of the third medium channel in series.
4. The heat exchange device of claim 1, further comprising a fifth external port and a first three-way control valve, wherein the first port, the second port and the third port of the first three-way control valve are respectively and correspondingly communicated with the first port, the fifth external port and the second port of the circulating pump.
5. The heat exchange device according to claim 4, further comprising a second three-way control valve, wherein the second three-way control valve is arranged in series between the second port of the circulation pump and the first port of the third medium passage, and the first port, the second port, and the third port of the second three-way control valve are respectively and correspondingly communicated with the first port of the circulation pump, the second port of the circulation pump, and the first port of the third medium passage.
6. The heat exchange device of claim 1, further comprising a fan or a circulation pump disposed in the second medium channel to enhance circulation of the corresponding gas or liquid heat exchange medium in the second medium channel, thereby improving heat exchange efficiency.
7. A heat pump air conditioning system comprises an outdoor unit and indoor air conditioning terminals, and is characterized by further comprising a heat exchange device, wherein the heat exchange device is the heat exchange device in any one of claims 1 to 6, two circulation interfaces of the outdoor unit are respectively and correspondingly communicated with a first external interface and a second external interface of the heat exchange device to form a source end heat exchange circulation, two circulation interfaces of the indoor air conditioning terminals are respectively and correspondingly communicated with a third external interface and a fourth external interface of the heat exchange device to form a user terminal heat exchange circulation, and the number of the indoor air conditioning terminals is at least 1.
8. The heat pump air conditioning system according to claim 7, further comprising an energy storage and heat exchange terminal, wherein the first port and the second port of the energy storage and heat exchange terminal are respectively and correspondingly communicated with the fifth external interface and the fourth external interface of the heat exchange device to form an energy storage and heat exchange circulation loop.
9. The heat pump air conditioning system of claim 7, wherein the outdoor unit comprises a gas refrigerant interface, a liquid refrigerant interface, a throttling device, an outdoor heat exchanger, a four-way reversing valve, and a compressor, and the liquid refrigerant interface, the throttling device, the outdoor heat exchanger, the four-way reversing valve, the compressor, and the gas refrigerant interface are sequentially connected to form a source end outdoor unit portion of the heat pump cycle.
10. The heat pump air conditioning system of claim 9, wherein the outdoor heat exchanger is the heat exchange device of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626103.7U CN210014503U (en) | 2019-05-05 | 2019-05-05 | Heat exchange device and heat pump air conditioning system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626103.7U CN210014503U (en) | 2019-05-05 | 2019-05-05 | Heat exchange device and heat pump air conditioning system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210014503U true CN210014503U (en) | 2020-02-04 |
Family
ID=69316281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920626103.7U Active CN210014503U (en) | 2019-05-05 | 2019-05-05 | Heat exchange device and heat pump air conditioning system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210014503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959101A (en) * | 2019-05-05 | 2019-07-02 | 李社红 | Heat-exchanger rig and heat pump air conditioning system with it |
-
2019
- 2019-05-05 CN CN201920626103.7U patent/CN210014503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959101A (en) * | 2019-05-05 | 2019-07-02 | 李社红 | Heat-exchanger rig and heat pump air conditioning system with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109405102B (en) | Air Conditioning System | |
| CN110411059B (en) | Double-evaporation-temperature heat pump system, air conditioner and control method | |
| CN111336721B (en) | Air source heat pump air conditioner and heat pump water heater combined operation system | |
| CN109959101A (en) | Heat-exchanger rig and heat pump air conditioning system with it | |
| EP4343214A1 (en) | Multi-mode water-fluorine multi-split system | |
| CN110186212B (en) | Heat and cold storage system | |
| CN107763726A (en) | Heat pump system | |
| CN109341138B (en) | Combined air conditioning system of machine room and hot water system and control method thereof | |
| CN109340960B (en) | Combined air conditioning system of machine room and control method thereof | |
| CN207661863U (en) | Heat pump system | |
| WO2019232943A1 (en) | Multiple-unit air conditioner and control method therefor | |
| CN210014503U (en) | Heat exchange device and heat pump air conditioning system with same | |
| CN211854322U (en) | Energy-saving radiation cooling and heating heat pump system | |
| CN210374156U (en) | Double-evaporation-temperature heat pump system and air conditioner | |
| CN112902479A (en) | Air conditioner heat exchange structure, air conditioner system, control method of air conditioner system and air conditioner outdoor unit | |
| CN109357427B (en) | Combined air conditioning system for machine room and hot water system and control method thereof | |
| CN214581891U (en) | Air conditioner heat exchange structure, air conditioning system and air conditioner outdoor unit | |
| CN214581887U (en) | Air conditioner heat exchange structure, air conditioner outer unit and air conditioning system | |
| CN213020428U (en) | Condenser heat recovery system | |
| CN212109084U (en) | Air conditioning system with natural cooling function | |
| CN112665015A (en) | Multi-split air conditioning system and control method thereof | |
| CN220524224U (en) | Air conditioning system with intermittent heat exchange function | |
| CN111156635A (en) | Energy-saving radiation cooling and heating heat pump system and control method | |
| CN220771272U (en) | Four-pipe air conditioner cold recovery system of ground source heat pump | |
| CN114763946B (en) | Air conditioner hot water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |