CN105157274B - cooling/heating system - Google Patents
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- CN105157274B CN105157274B CN201510661520.1A CN201510661520A CN105157274B CN 105157274 B CN105157274 B CN 105157274B CN 201510661520 A CN201510661520 A CN 201510661520A CN 105157274 B CN105157274 B CN 105157274B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 93
- 238000001816 cooling Methods 0.000 title abstract description 63
- 239000012530 fluid Substances 0.000 claims abstract description 209
- 238000005057 refrigeration Methods 0.000 claims abstract description 51
- 230000005494 condensation Effects 0.000 claims description 57
- 238000009833 condensation Methods 0.000 claims description 57
- 238000011084 recovery Methods 0.000 claims description 52
- 239000003507 refrigerant Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 35
- 238000003860 storage Methods 0.000 claims description 10
- 239000007791 liquid phase Substances 0.000 claims description 7
- 239000011232 storage material Substances 0.000 claims description 7
- 239000012808 vapor phase Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- 230000006835 compression Effects 0.000 abstract description 15
- 238000007906 compression Methods 0.000 abstract description 15
- 230000035622 drinking Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 238000004781 supercooling Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A cooling/heating system includes a compressor, a condensing/heating unit, a preheat regenerator, a subcool regenerator, a first throttling element, and an evaporator. The refrigerating/heating system is provided with a refrigerating circulation loop and a fluid heating pipeline, can realize refrigeration and heating at the same time, realizes cold and hot dual purposes, and can also realize refrigeration or heating independently. According to the refrigeration/heating system, the exhaust temperature of the compressor is increased by increasing the return air temperature of the compressor during heating, the refrigeration/heating system can be used for generating hot fluid, particularly domestic or drinking hot water, the water temperature can reach 99 ℃, the efficient utilization of electric energy is realized, the utilization efficiency of converting the electric energy into heat energy is improved, and the efficiency can be more than 1; meanwhile, the heat can be effectively recovered, and the heat pollution to the environment is reduced. The refrigerating/heating system is not only suitable for a single-medium steam compression type system, but also suitable for a mixed working medium steam compression type system.
Description
Technical field
The invention belongs to refrigeration technology field, more particularly to a kind of cooling/heating system.
Background technology
In many vapour compression refrigeration systems, such as domestic refrigerator, market showcase, air-conditioning, compressor discharge
Refrigeration working medium temperature is very high, usually up to 70~120 DEG C, to realize that refrigeration is needed, it is necessary to which refrigerant gas is cooled down (condensation)
Saturation or subcooled liquid to 40~50 DEG C, under conventional situation, this partial heat needs cold with special air-cooled or water cooling
Condenser is transferred to air or water, since this portion of energy is approximately equal to the sum of compressor power consumption and evaporator capacity, not only can
Cause the significant wastage of energy, it is also possible to environment is caused " thermal pollution ".At the same time, the demand of hot water is deposited always in life
, common method is to directly acquire hot water by electrical heating, its electrothermal efficiency maximum only be 1, cause high-grade electric energy
Waste.And the heating of steam compression type system is utilized, equivalent to heat pump working condition, its efficiency of heating surface minimum 1, can efficiently use electricity for it
Energy.
To recycle or the condenser heat using refrigeration working medium, patent 200710195681.1 provide the improved steam of cluster
Compression-type refrigerating system and application thereof, it is characterized in that in system, temperature controller is respectively arranged with its condenser, when condenser inner cold water
Then temperature controller makes 40 DEG C of low-temperature water heatings head into attemperater by control system when the heat that is condensed is heated to 40 DEG C, and fine day is by too
It is positive to be reheated by heat pump into 70 DEG C of bathings and hot water for life rainy days, so that during cooling system air-conditioning, while produce heat
Water, does not interfere with refrigeration effect.But its system can only obtain 40 DEG C of hot water, it is also necessary to aid in solar energy or heat pump ability
70 DEG C of hot water are produced, it is even more impossible to reach the temperature of drinking water.
The content of the invention
In consideration of it, it is necessary to provide a kind of cooling/heating system for the hot water that can freeze while obtain higher water temperature.
A kind of cooling/heating system, including compressor, condensation/heater, preheating regenerator, Subcooled heat recovery device, first segment
Fluid element and evaporator；
The high-pressure outlet of the compressor connects the refrigerant inlet of the condensation/heater, the condensation/heater
The high pressure entry of the refrigerant outlet connection preheating regenerator, the high-pressure outlet connection of the preheating regenerator is described to be subcooled back
The high pressure entry of hot device, the high-pressure outlet of the Subcooled heat recovery device connect the entrance of the first throttle element, the first segment
The outlet of fluid element connects the entrance of the evaporator, and the low pressure of the outlet connection Subcooled heat recovery device of the evaporator enters
Mouthful, the low-pressure inlet of the low tension outlet connection preheating regenerator of the Subcooled heat recovery device, the low pressure of the preheating regenerator
Outlet is connected with the entrance of the compressor, forms refrigeration cycle, and the evaporator can externally export cold；
Condensation/the heater further includes fluid inlet and fluid outlet, and the preheating regenerator further includes fluid inlet
And fluid outlet, the fluid inlet of the preheating regenerator flow into hot fluid to be added, the fluid outlet of the preheating regenerator connects
The condensation/heater fluid entrance is connect, the condensation/heater fluid outlet is hot fluid outlet ports, forms fluid heating tube
Road, for heating fluid；
The cooling/heating system further includes three-way switch valve, the second restricting element and heat exchanger；
The refrigerant outlet of the condensation/heater connects the entrance of the three-way switch valve, the three-way switch valve
The high pressure entry of the first outlet connection preheating regenerator, second outlet connection second throttling of the three-way switch valve
The entrance of element, the outlet of second restricting element connect the entrance of the heat exchanger, the outlet of the heat exchanger with it is described
The entrance of compressor is connected, forming circuit.
In one of the embodiments, cold fluid heat exchanger is further included, the cold fluid heat exchanger is arranged on the evaporator
Between the Subcooled heat recovery device, the outlet of the evaporator connects the first entrance of the cold fluid heat exchanger, the cold flow
The first outlet of body heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, is exchanged heat from the cold fluid
The second outlet outflow of device, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
In one of the embodiments, cold fluid heat exchanger is further included, the cold fluid heat exchanger is arranged on the evaporator
Between the Subcooled heat recovery device, the outlet of the evaporator connects the first entrance of the cold fluid heat exchanger, the cold flow
The first outlet of body heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, from cold fluid heat exchanger
Second outlet flows out, and becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
In one of the embodiments, vapour liquid separator and the 3rd restricting element, the system of the condensation/heater are further included
Cryogen outlet connects the entrance of the vapour liquid separator, and the liquid-phase outlet of the vapour liquid separator connects the 3rd restricting element
Entrance, the 3rd restricting element outlet connection it is described preheating regenerator low-pressure inlet, the vapour of the vapour liquid separator
The mutually high pressure entry of the outlet connection preheating regenerator.
In one of the embodiments, cold fluid heat exchanger is further included, the cold fluid heat exchanger is arranged on the evaporator
Between the Subcooled heat recovery device, the outlet of the evaporator connects the first entrance of the cold fluid heat exchanger, the cold flow
The first outlet of body heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, is exchanged heat from the cold fluid
The second outlet outflow of device, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
In one of the embodiments, three-way switch valve, the second restricting element and heat exchanger are further included；
The refrigerant outlet of the condensation/heater connects the entrance of the three-way switch valve, the three-way switch valve
First outlet connects the entrance of the vapour liquid separator, and the second outlet of the three-way switch valve connects second restricting element
Entrance, the outlet of second restricting element connects the entrance of the heat exchanger, the outlet of the heat exchanger and the compression
The entrance of machine is connected, forming circuit.
In one of the embodiments, cold fluid heat exchanger is further included, the cold fluid heat exchanger is arranged on the evaporator
Between the Subcooled heat recovery device, the outlet of the evaporator connects the first entrance of the cold fluid heat exchanger, the cold flow
The first outlet of body heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, is exchanged heat from the cold fluid
The second outlet outflow of device, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
In one of the embodiments, it is filled with cold-storage and thermal storage material in the condensation/heater.
In one of the embodiments, it is filled with cold-storage and thermal storage material in the evaporator.
Above-mentioned cooling/heating system, by efficient backheat lifting compressor return air temperature, improves compressor air-discharging temperature
Degree, production hot fluid can particularly live or drinking hot water, water temperature can reach 99 DEG C while refrigeration.Utilize compressor
Hot fluid needed for the refrigeration working medium heating life of discharge, can efficiently utilize electric energy, improve the profit that electric energy is converted into thermal energy
With efficiency, its efficiency is more than 1, meanwhile, can effectively recycle heat, at the same reduce the above-mentioned refrigeration of thermal pollution to environment/
Heating system is applicable not only to the steam compression type system of Single Medium, is also applied for mixed working fluid steam compression type system.
Brief description of the drawings
Fig. 1 is the structure diagram of the cooling/heating system of embodiment 1.
Fig. 2 is the structure diagram of the cooling/heating system of embodiment 2.
Fig. 3 is the structure diagram of the cooling/heating system of embodiment 3.
Fig. 4 is the structure diagram of the cooling/heating system of embodiment 4.
Fig. 5 is the structure diagram of the cooling/heating system of embodiment 5.
Fig. 6 is the structure diagram of the cooling/heating system of embodiment 6.
Fig. 7 is the structure diagram of the cooling/heating system of embodiment 7.
Fig. 8 is the structure diagram of the cooling/heating system of embodiment 8.
Embodiment
In order to become apparent from the objects, technical solutions and advantages of the present invention, with reference to the accompanying drawings and embodiments, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Embodiment 1
It refer to Fig. 1, the cooling/heating system 10 of an embodiment, including compressor 110, condensation/heater 120, preheating
Regenerator 130, Subcooled heat recovery device 140, first throttle element 150 and evaporator 160.The cooling/heating system 10 has refrigeration
Circulation loop and fluid heating pipeline.
Its connection mode is：The refrigerant inlet of high-pressure outlet connection condensation/heater 120 of compressor 110, condensation/
The high pressure entry of the refrigerant outlet connection preheating regenerator 130 of heater 120, the high-pressure outlet connection of preheating regenerator 130
140 high pressure entry of Subcooled heat recovery device, the entrance of 140 high-pressure outlet of Subcooled heat recovery device connection first throttle element 150, first throttle
The entrance of the outlet connection evaporator 160 of element 150, the low-pressure inlet of the outlet connection Subcooled heat recovery device 140 of evaporator 160,
Subcooled heat recovery device 140 low tension outlet connection preheating regenerator 130 low-pressure inlet, preheat regenerator 130 low tension outlet with
The entrance of compressor 110 is connected, and forms refrigeration cycle.Evaporator 160 can externally export cold.
Condensation/heater 120 further includes fluid inlet and fluid outlet.Preheating regenerator 130 further include fluid inlet and
Fluid outlet.The fluid inlet for preheating regenerator 130 flows into hot fluid to be added, and the fluid outlet connection of preheating regenerator 130 is cold
Solidifying/120 fluid inlet of heater, 120 fluid outlet of condensation/heater is hot fluid outlet ports, forms fluid heating pipeline, is used for
Heat fluid.
10 workflow of cooling/heating system is：Cooling, heating system works at the same time, refrigerant (refrigeration working medium) warp
Compressor 110 forms gases at high pressure after compressing, and temperature is about 100 DEG C~120 DEG C.Condensed/heater 120 forms vapour after cooling down
Liquid two-phase.Further cooling becomes supercooling refrigerant for preheated regenerator 130, Subcooled heat recovery device 140.Refrigerant is subcooled through first
Restricting element 150 becomes low pressure vapour-liquid two-phase state after throttling, and then liquid phase becomes gas after evaporator 160 absorbs heat.
Then backheat becomes overheated gas in Subcooled heat recovery device 140 and preheating regenerator 130, subsequently enters compressor 110 and completes system
SAPMAC method.
At the same time, the fluid inlet of fluid to be heated from preheating regenerator 130 enters preheating regenerator 130, pre-
Heating in hot regenerator 130, further heats up to 99 DEG C of hot fluid subsequently into condensation/heater 120, then from condensation/
The fluid outlet outflow of heater 120.Specifically, fluid to be heated can be water, go out from the fluid of condensation/heater 120
The hot fluid of mouth outflow can be life or the hot water drunk.
Embodiment 2
Fig. 2 is refer to, the cooling/heating system 20 of the present embodiment is on the basis of the cooling/heating system 10 of embodiment 1
Further include cold fluid heat exchanger 270.Cooling/heating system 20 also has refrigeration pipeline.
Its connection mode is：Cold fluid heat exchanger 270 is arranged between evaporator 260 and Subcooled heat recovery device 240.Evaporator
The first entrance of 260 outlet connection cold fluid heat exchanger 270, the first outlet connection Subcooled heat recovery of cold fluid heat exchanger 270
The low-pressure inlet of device 240.Fluid to be freezed is flowed into from the second entrance of cold fluid heat exchanger 270, after heat exchange, is changed from cold fluid
The second outlet outflow of hot device 270, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
The workflow of cooling/heating system 20 is：Cooling, heating system works at the same time, refrigerant (refrigeration working medium) warp
Compressor 210 forms gases at high pressure after compressing, and temperature is about 100 DEG C~120 DEG C.Condensed/heater 220 forms vapour after cooling down
Liquid two-phase.Further cooling becomes supercooling refrigerant for preheated regenerator 230, Subcooled heat recovery device 240.Refrigerant is subcooled through first
Restricting element 250 becomes low pressure vapour-liquid two-phase state after throttling, and then liquid phase becomes gas after evaporator 260 absorbs heat.
Then, by the fluid heat transfer to be freezed of cold fluid heat exchanger 270, and cold fluid heat exchanger 270, then by Subcooled heat recovery device
240 and preheating 230 backheat of regenerator, become overheated gas, subsequently enter compressor 210 complete kind of refrigeration cycle.
At the same time, the fluid inlet of fluid to be heated from preheating regenerator 230 enters preheating regenerator 230, pre-
Heating in hot regenerator 230, further heats up to 99 DEG C of hot fluid subsequently into condensation/heater 220, then from condensation/
The fluid outlet outflow of heater 220.Specifically, fluid to be heated can be water, go out from the fluid of condensation/heater 220
The hot fluid of mouth outflow can be life or the hot water drunk.
At the same time, fluid to be freezed is flowed into from the second entrance of cold fluid heat exchanger 270 at room temperature, after heat exchange, from
The second outlet outflow of cold fluid heat exchanger 270, is cooled to required temperature.
Embodiment 3
Fig. 3 is refer to, the cooling/heating system 30 of the present embodiment is on the basis of the cooling/heating system 10 of embodiment 1
Further include three-way switch valve 380, the second restricting element 390 and heat exchanger 395.
Its connection mode is：The entrance of the refrigerant outlet connection three-way switch valve 380 of condensation/heater 320, threeway are cut
Change the high pressure entry of the first outlet connection preheating regenerator 330 of valve 380, the second section of 380 second outlet of three-way switch valve connection
The entrance of fluid element 390, the entrance of the outlet connection heat exchanger 395 of the second restricting element 390, the outlet of heat exchanger 395 and pressure
The entrance of contracting machine 310 is connected, forming circuit.
The workflow of cooling/heating system 30 is：When Cooling, heating system works at the same time, switching three-way switching valve
380 make the refrigerant outlet of condensation/heater 320 be connected with preheating the high pressure entry of regenerator 330, simultaneously close off threeway switching
The second outlet of valve 380.Refrigeration working medium forms gases at high pressure after the compression of compressor 310, and temperature is about 100 DEG C~120 DEG C, warp
Condensation/heater 320 forms vehicle repair major after cooling down, further cooling becomes for preheated regenerator 330 and Subcooled heat recovery device 340
Subcooled liquid.Supercooling refrigerant becomes low pressure vapour-liquid two-phase state after the throttling of first throttle element 350, is inhaled in evaporator 360
Become gas after receiving heat, then backheat becomes overheated gas in Subcooled heat recovery device 340 and preheating regenerator 330, into pressure
Contracting machine 310 completes kind of refrigeration cycle.
At the same time, the fluid inlet of fluid to be heated from preheating regenerator 330 enters preheating regenerator 330, pre-
Heating in hot regenerator 330, further heats up to 99 DEG C of hot fluid subsequently into condensation/heater 320, then from condensation/
The fluid outlet outflow of heater 320.Specifically, fluid to be heated can be water, go out from the fluid of condensation/heater 320
The hot fluid of mouth outflow can be life or the hot water drunk.
When only needing heating system, switching three-way switching valve 380 makes the refrigerant outlet and of condensation/heater 320
Two restricting elements 390 are connected, and simultaneously close off the first outlet of three-way switch valve 380.Refrigerant gas is in condensation/heater 320
Reducing pressure by regulating flow enters heat exchanger 395 after cooling, and absorbs wherein after atmospheric heat becomes low-pressure gas and reenter compressor
Circulation is completed in compression in 310.
Embodiment 4
It refer to Fig. 4, the base of the cooling/heating system 40 of the present embodiment in 3 combined type refrigerants of embodiment/heating system 30
Cold fluid heat exchanger 470 is further included on plinth.Cooling/heating system 40 also has refrigeration pipeline.Refrigeration pipeline is used to produce cold flow
Body.
Its connection mode is：Cold fluid heat exchanger 470 is arranged between evaporator 460 and Subcooled heat recovery device 440.Evaporator
The first entrance of 460 outlet connection cold fluid heat exchanger 470, the first outlet connection Subcooled heat recovery of cold fluid heat exchanger 470
The low-pressure inlet of device 440.
Fluid to be freezed is flowed into from the second entrance of cold fluid heat exchanger 470, after heat exchange, from cold fluid heat exchanger 470
Second outlet outflow, become cold fluid, refrigeration pipeline formed, for producing cold fluid.
The workflow of cooling/heating system 40 is：It is with 30 difference of cooling/heating system of embodiment 3, treats
Cooling fluid can be cooled to required temperature through cold fluid heat exchanger 470.
Embodiment 5
It refer to Fig. 5, the cooling/heating system 50 of the present embodiment, including compressor 510, condensation/heater 520, vapour-liquid
Separator 525, preheating regenerator 530, Subcooled heat recovery device 540, first throttle element 550, evaporator 560, the 3rd restricting element
535th, pipeline and valve.The cooling/heating system 50 is particularly suitable for mixed working fluid cooling cycle system.The cooling/heating system
50 have refrigeration cycle and fluid heating pipeline.
Refrigeration cycle connection mode is：The refrigerant of high-pressure outlet connection condensation/heater 520 of compressor 510
Entrance, the entrance of the refrigerant outlet connection vapour liquid separator 525 of condensation/heater 520, the outlet point of vapour liquid separator 525
For two-way：525 liquid-phase outlet of vapour liquid separator connects the entrance of the 3rd restricting element 535, and the outlet of the 3rd restricting element 535 connects
Connect the low-pressure inlet of preheating regenerator 530；The high pressure entry of the vapor phase exit connection preheating regenerator 530 of vapour liquid separator 525,
The high pressure entry of the high-pressure outlet connection Subcooled heat recovery device 540 of regenerator 530 is preheated, the high-pressure outlet of Subcooled heat recovery device 540 connects
The entrance of first throttle element 550, outlet connection 560 entrance of evaporator of first throttle element 550 are connect, evaporator 560 goes out
540 low-pressure inlet of mouth connection Subcooled heat recovery device, the low pressure of the low tension outlet connection preheating regenerator 530 of Subcooled heat recovery device 540 enter
Mouthful, the low tension outlet of preheating regenerator 530 is connected with the entrance of compressor 510 and forms complete circuit.
Heating pipeline is used to heat fluid, its connection mode is：The fluid inlet for preheating regenerator 530 flows into hot-fluid to be added
Body, fluid outlet connection 520 fluid inlet of condensation/heater of preheating regenerator 530,520 fluid outlet of condensation/heater are
Hot fluid outlet ports.
The workflow of cooling/heating system 50 is：Refrigeration working medium forms gases at high pressure after the compression of compressor 510, temperature
About 100 DEG C~120 DEG C of degree, condensed/heater 520 forms vehicle repair major after cooling down.Vapour-liquid is completed in vapour liquid separator 525
Separation, wherein higher boiling working medium after 535 reducing pressure by regulating flow of the 3rd restricting element, enter in the liquid-phase outlet of vapour liquid separator 525
Preheat the low-pressure inlet of regenerator 530；Vapor phase exit of the low boiling working fluid through vapour liquid separator 525 is in preheating 530 He of regenerator
Further cooling is subcooled liquid to Subcooled heat recovery device 540.Supercooling refrigerant becomes low-pressure steam after the throttling of first throttle element 550
Liquid two-phase state, becomes gas after evaporator 560 absorbs heat, then in Subcooled heat recovery device 540 and preheating regenerator 530
Backheat completes kind of refrigeration cycle into overheated gas into compressor 510.
At the same time, the fluid inlet of fluid to be heated from preheating regenerator 530 enters preheating regenerator 530, pre-
Heating in hot regenerator 530, further heats up to 99 DEG C of hot fluid subsequently into condensation/heater 520, then from condensation/
The fluid outlet outflow of heater 520.Specifically, fluid to be heated can be water, go out from the fluid of condensation/heater 520
The hot fluid of mouth outflow can be life or the hot water drunk.
Embodiment 6
It refer to Fig. 6, the base of the cooling/heating system 60 of the present embodiment in 5 combined type refrigerants of embodiment/heating system 50
Cold fluid heat exchanger 670 is further included on plinth.Cooling/heating system 60 also has refrigeration pipeline.Refrigeration pipeline is used to produce cold flow
Body.
Its connection mode is：Cold fluid heat exchanger 670 is arranged between evaporator 660 and Subcooled heat recovery device 640.Evaporator
The first entrance of 660 outlet connection cold fluid heat exchanger 670, the first outlet connection Subcooled heat recovery of cold fluid heat exchanger 670
The low-pressure inlet of device 640.Fluid to be freezed is flowed into from the second entrance of cold fluid heat exchanger 670, after heat exchange, is changed from cold fluid
The second outlet outflow of hot device 670, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
Workflow is：It is with 50 difference of cooling/heating system of embodiment 5, fluid to be cooled is from cold fluid
The second entrance of heat exchanger 670 enters, and is flowed out after heat exchange from the second outlet of cold fluid heat exchanger 670, is cooled to required temperature.
Embodiment 7
It refer to Fig. 7, the base of the cooling/heating system 70 of the present embodiment in 5 combined type refrigerants of embodiment/heating system 50
Three-way switch valve 780, the second restricting element 790 and heat exchanger 795 are further included on plinth.
Refrigeration cycle connection mode is at this time：The refrigerant outlet connection three-way switch valve of condensation/heater 720
780 entrance, first outlet connection 725 entrance of vapour liquid separator of three-way switch valve 780, the second of three-way switch valve 780 goes out
The entrance of mouth the second restricting element 790 of connection, the entrance of the outlet connection heat exchanger 795 of the second restricting element 790, heat exchanger
795 outlet is connected with the entrance of compressor 710, forming circuit.
The workflow of cooling/heating system 70 is：When Cooling, heating system works at the same time, switching three-way switching valve
780 make the refrigerant outlet of condensation/heater 720 be connected with the entrance of vapour liquid separator 725, simultaneously close off three-way switch valve
780 second outlet.Refrigeration working medium forms gases at high pressure after the compression of compressor 710, and temperature is about 100 DEG C~120 DEG C, through cold
Vehicle repair major is formed after solidifying/heater cooling, completes vapor-liquid separation in vapour liquid separator 725, wherein higher boiling working medium is in vapour-liquid
The liquid-phase outlet of separator 725 is after 735 reducing pressure by regulating flow of the 3rd restricting element, into the low-pressure inlet of preheating regenerator 730；It is low
Further cooling is vapor phase exit of the boiling point working medium through vapour liquid separator 725 in preheating regenerator 730 and Subcooled heat recovery device 740
Refrigerant is subcooled, supercooling refrigerant becomes low pressure vapour-liquid two-phase state after the throttling of first throttle element 750, absorbed in evaporator
Become gas after heat, then the backheat in Subcooled heat recovery device 740 and preheating regenerator 730, becomes overheated gas, into compression
Machine 710 completes kind of refrigeration cycle.At the same time, the fluid inlet of fluid to be heated from preheating regenerator 730 enters preheating backheat
Device 730, the heating in preheating regenerator 730, further heats up to 99 DEG C of hot fluid, so subsequently into condensation/heater 720
Flowed out afterwards from the fluid outlet of condensation/heater 720.Specifically, fluid to be heated can be water, from condensation/heater 720
The hot fluid of fluid outlet outflow can be life or the hot water drunk.
When only needing heating system, switching three-way switching valve 780 makes the refrigerant outlet and of condensation/heater 720
Two restricting elements 790 are connected, and simultaneously close off the first outlet of three-way switch valve 780, refrigerant gas is in condensation/heater 720
Reducing pressure by regulating flow enters heat exchanger 795 after cooling, and absorbs wherein after atmospheric heat becomes low-pressure gas and reenter compressor
Circulation is completed in compression in 710.
Embodiment 8
It refer to Fig. 8, the base of the cooling/heating system 80 of the present embodiment in 7 combined type refrigerants of embodiment/heating system 70
Cold fluid heat exchanger 870 is further included on plinth.Cooling/heating system 80 also has refrigeration pipeline.Refrigeration pipeline is used to produce cold flow
Body.
Its connection mode is：Cold fluid heat exchanger 870 is arranged between evaporator 860 and Subcooled heat recovery device 840.Evaporator
The first entrance of 860 outlet connection cold fluid heat exchanger 870, the first outlet connection Subcooled heat recovery of cold fluid heat exchanger 870
The low-pressure inlet of device 840.Fluid to be freezed is flowed into from the second entrance of cold fluid heat exchanger 870, after heat exchange, is changed from cold fluid
The second outlet outflow of hot device 870, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
Workflow is：Cooling/heating system 80 and 70 difference of cooling/heating system of embodiment 7 be, room temperature
Under fluid can be cooled to required temperature through cold fluid heat exchanger 870.
In above-described embodiment 1-8, cold-storage and thermal storage material can be filled in condensation/heater.Also cold-storage can be filled in evaporator
Heat-storing material.Cold-storage and thermal storage material can be phase-change material for cold storage and non-phase-change material for cold storage.In condensation/heater and evaporator
Cold-storage and thermal storage material is filled, energy-conserving action can be further functioned as.
Above-mentioned cooling/heating system, by efficient backheat lifting compressor return air temperature, improves compressor air-discharging temperature
Degree, can produce hot fluid while refrigeration and particularly live or drinking hot water, water temperature can reach 99 DEG C.Utilize compressor
Hot fluid needed for the refrigeration working medium heating life of discharge, can efficiently utilize electric energy, improve the profit that electric energy is converted into thermal energy
With efficiency, its efficiency is more than 1, meanwhile, can effectively recycle heat, at the same reduce the above-mentioned refrigeration of thermal pollution to environment/
Heating system is applicable not only to the steam compression type system of Single Medium, is also applied for mixed working fluid steam compression type system.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (8)
1. a kind of refrigerating and heating systems, it is characterised in that including compressor, condensation heater, preheating regenerator, Subcooled heat recovery
Device, first throttle element and evaporator；
The high-pressure outlet of the compressor connects the refrigerant inlet of the condensation heater, the refrigerant of the condensation heater
The high pressure entry of the outlet connection preheating regenerator, the high-pressure outlet of the preheating regenerator connect the Subcooled heat recovery device
High pressure entry, the high-pressure outlet of the Subcooled heat recovery device connect the entrance of the first throttle element, the first throttle element
Outlet connect the entrance of the evaporator, the outlet of the evaporator connects the low-pressure inlet of the Subcooled heat recovery device, described
The low-pressure inlet of the low tension outlet connection preheating regenerator of Subcooled heat recovery device, the low tension outlet of the preheating regenerator and institute
The entrance for stating compressor is connected, and forms refrigeration cycle, and the evaporator can externally export cold；
The condensation heater further includes fluid inlet and fluid outlet, and the preheating regenerator further includes fluid inlet and fluid
Export, the fluid inlet inflow hot fluid to be added of the preheating regenerator, described in the fluid outlet connection of the preheating regenerator
Condensation heater fluid inlet, the condensation heater fluid outlet are hot fluid outlet ports, fluid heating pipeline are formed, for adding
Hot fluid；
The refrigerating and heating systems further include three-way switch valve, the second restricting element and heat exchanger；
The refrigerant outlet of the condensation heater connects the entrance of the three-way switch valve, and the first of the three-way switch valve goes out
The high pressure entry of the mouth connection preheating regenerator, the second outlet of the three-way switch valve connect second restricting element
Entrance, the outlet of second restricting element connect the entrance of the heat exchanger, the outlet of the heat exchanger and the compressor
Entrance be connected, be formed into a loop；
The refrigerating and heating systems further include cold fluid heat exchanger, and the cold fluid heat exchanger is arranged on the evaporator and the mistake
Between cold regenerator, the outlet of the evaporator connects the first entrance of the cold fluid heat exchanger, the cold fluid heat exchanger
First outlet connect the low-pressure inlet of the Subcooled heat recovery device；Fluid to be freezed enters from the second of the cold fluid heat exchanger
Mouth flows into, and after heat exchange, is flowed out from the second outlet of the cold fluid heat exchanger, becomes cold fluid, refrigeration pipeline is formed, for making
Take cold fluid.
2. refrigerating and heating systems as claimed in claim 1, it is characterised in that further include cold fluid heat exchanger, the cold fluid
Heat exchanger is arranged between the evaporator and the Subcooled heat recovery device, and the outlet of the evaporator connects the cold fluid heat exchanger
First entrance, the first outlet of the cold fluid heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, from the second of cold fluid heat exchanger
Outlet outflow, becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
3. refrigerating and heating systems as claimed in claim 1, it is characterised in that further include vapour liquid separator and the 3rd throttling member
Part, the refrigerant outlet of the condensation heater connect the entrance of the vapour liquid separator, and the liquid phase of the vapour liquid separator goes out
Mouth connects the entrance of the 3rd restricting element, and the low pressure of the outlet connection preheating regenerator of the 3rd restricting element enters
Mouthful, the high pressure entry of the vapor phase exit connection preheating regenerator of the vapour liquid separator.
4. refrigerating and heating systems as claimed in claim 3, it is characterised in that further include cold fluid heat exchanger, the cold fluid
Heat exchanger is arranged between the evaporator and the Subcooled heat recovery device, and the outlet of the evaporator connects the cold fluid heat exchanger
First entrance, the first outlet of the cold fluid heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, from the cold fluid heat exchanger
Second outlet flows out, and becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
5. refrigerating and heating systems as claimed in claim 3, it is characterised in that further include three-way switch valve, the second restricting element
And heat exchanger；
The refrigerant outlet of the condensation heater connects the entrance of the three-way switch valve, and the first of the three-way switch valve goes out
Mouth connects the entrance of the vapour liquid separator, and the second outlet of the three-way switch valve connects entering for second restricting element
Mouthful, the outlet of second restricting element connects the entrance of the heat exchanger, outlet and the compressor of the heat exchanger
Entrance is connected, forming circuit.
6. refrigerating and heating systems as claimed in claim 5, it is characterised in that further include cold fluid heat exchanger, the cold fluid
Heat exchanger is arranged between the evaporator and the Subcooled heat recovery device, and the outlet of the evaporator connects the cold fluid heat exchanger
First entrance, the first outlet of the cold fluid heat exchanger connects the low-pressure inlet of the Subcooled heat recovery device；
Fluid to be freezed is flowed into from the second entrance of the cold fluid heat exchanger, after heat exchange, from the cold fluid heat exchanger
Second outlet flows out, and becomes cold fluid, refrigeration pipeline is formed, for producing cold fluid.
7. the refrigerating and heating systems as described in any one in claim 1-6, it is characterised in that filled out in the condensation heater
Filled with cold-storage and thermal storage material.
8. the refrigerating and heating systems as described in any one in claim 1-6, it is characterised in that be filled with the evaporator
Cold-storage and thermal storage material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510661520.1A CN105157274B (en) | 2015-10-14 | 2015-10-14 | cooling/heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510661520.1A CN105157274B (en) | 2015-10-14 | 2015-10-14 | cooling/heating system |
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| CN105157274B true CN105157274B (en) | 2018-04-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105444466B (en) * | 2015-12-18 | 2018-11-09 | 中国科学院理化技术研究所 | Circulating backheating high-temperature heat pump water heater and heating method |
| CN107883605A (en) * | 2017-12-07 | 2018-04-06 | 卡诺冷暖（广州）科技有限公司 | A kind of heated type refrigeration plant |
| CN108286838B (en) * | 2018-01-12 | 2020-12-22 | 卡诺冷暖（广州）科技有限公司 | Heating type refrigeration multi-split air conditioner |
| CN115091919A (en) * | 2022-06-30 | 2022-09-23 | 中国第一汽车股份有限公司 | Air conditioning system for vehicle and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200986276Y (en) * | 2006-08-02 | 2007-12-05 | 李国强 | Composite multiple controlled cold and warm air conditioner hot-water center |
| US8631666B2 (en) * | 2008-08-07 | 2014-01-21 | Hill Phoenix, Inc. | Modular CO2 refrigeration system |
| CN202928176U (en) * | 2012-11-30 | 2013-05-08 | 苏州必信空调有限公司 | Refrigerant heat recovery circulating system |
| CN103225935B (en) * | 2013-04-22 | 2015-04-22 | 重庆美的通用制冷设备有限公司 | Gas-liquid separator, air source heat recovery system, water chiller and heat pump |
| CN204141892U (en) * | 2014-04-17 | 2015-02-04 | 陈则韶 | A kind of reduced form Practical multifunction hot-water air conditioner |
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