CN108072173A - A kind of cascade refrigeration defrosting water heater - Google Patents
A kind of cascade refrigeration defrosting water heater Download PDFInfo
- Publication number
- CN108072173A CN108072173A CN201810064901.5A CN201810064901A CN108072173A CN 108072173 A CN108072173 A CN 108072173A CN 201810064901 A CN201810064901 A CN 201810064901A CN 108072173 A CN108072173 A CN 108072173A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- circulation line
- stage
- compression circulation
- heat
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000005057 refrigeration Methods 0.000 title claims abstract description 58
- 238000010257 thawing Methods 0.000 title claims abstract description 44
- 230000006835 compression Effects 0.000 claims abstract description 120
- 238000007906 compression Methods 0.000 claims abstract description 120
- 239000007788 liquid Substances 0.000 claims description 85
- 238000003860 storage Methods 0.000 claims description 33
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 21
- 229910052731 fluorine Inorganic materials 0.000 claims description 21
- 239000011737 fluorine Substances 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 28
- 239000003507 refrigerant Substances 0.000 description 25
- 238000010438 heat treatment Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to technical field of water heaters, and in particular to a kind of cascade refrigeration defrosting water heater, including：One stage of compression circulation line and two-stage compression circulation line, one stage of compression circulation line are provided with First Heat Exchanger；Second heat exchanger is connected between one stage of compression circulation line and two-stage compression circulation line, and the heat transfer for will be absorbed from one stage of compression circulation line gives two-stage compression circulation line；3rd heat exchanger is arranged in two-stage compression circulation line, for absorbing the heat in two-stage compression circulation line to heat the water of internal reservoir；Refrigeration defrosting compression circulation line, First Heat Exchanger and the 3rd heat exchanger are provided with, for sending the heat inside the defrosting compression circulation line that freezes to First Heat Exchanger, to remove the frosting on First Heat Exchanger inner wall, or the heat of water in the 3rd heat exchanger is absorbed, freeze to it.The present invention provides one kind can defrost in time in use, the high cascade refrigeration defrosting water heater of overall utilization rate.
Description
Technical field
The present invention relates to technical field of water heaters, and in particular to a kind of cascade refrigeration defrosting water heater.
Background technology
Teat pump boiler, also referred to as air-source water heater are that the low-temperature heat quantity in air is absorbed into come, by fluorine medium gas
Change, then heated up by being pressurized after compressor compresses, then feedwater heating is converted by heat exchanger, compressed high temperature heat is with this
To heat water temperature.Teat pump boiler overcomes the shortcomings that solar water heater adopts heat and inconvenient installation by sunlight.Due to air
Can water heater work be by media for heat exchange, therefore its be not required electrical heating elements contacted directly with water, avoid electric hot water
The danger of device electric leakage also prevents gas heater it is possible that the danger of explosion and poisoning, more effectively controls gas heater
Air pollution caused by discharging exhaust gas.Teat pump boiler generally includes compressor, pipe wing heat exchanger and water-storing tank, due to existing
For the Teat pump boiler of technology generally using single-stage compressor, the compression of compressor is bigger during cold operation, causes heat-pump hot-water
Device reliability is relatively low.
In order to solve the above-mentioned technical problem, applicant proposed a kind of cascade type heat pump water heater, including：It is provided with first
The one stage of compression circulation line of heat exchanger, the two-stage compression circulation line for being provided with the second heat exchanger are connected to one stage of compression and follow
The 3rd heat exchanger between endless tube road and two-stage compression circulation line and the water tank being arranged in two-stage compression circulation line,
It realizes and different compression circulation lines is enabled according to the difference of ambient temperature, on the premise of heating water is met, reduce
Unnecessary energy waste.But when only enabling two-stage compression circulation line, due to the heat in compression circulation line not
It is enough to heat the water in water tank, needs to start the second heat exchanger at this time, and second heat exchanger is in one stage of compression circulation line
Do not work when starting simultaneously with two-stage compression circulation line, thus cause the second heat exchanger when two stages of compression is carried out at the same time at
In idle state, it is impossible to realize the maximization that resource distribution utilizes.
In order to solve the technical problem, applicant proposed a kind of cascade type heat pump, including：It is provided with First Heat Exchanger
One stage of compression circulation line, the two-stage compression pipeline for being provided with water tank and it is connected to one stage of compression circulation line and two level pressure
The second heat exchanger between contracting circulation line, since the second heat exchanger internal reservoir has water, when only one stage of compression cycles
Pipeline work when, the second heat exchanger directly absorbs the heat in one stage of compression circulation line to heat the water of internal reservoir, i.e., this
When the second heat exchanger used as water tank, while First Heat Exchanger is in normal operating conditions to provide required heat,
Although reducing a heat exchanger in this application, one stage of compression and two stages of compression still can realize money with normal operation
The maximization that source configuration utilizes.But the cascade type heat pump is in the long-term use, carry out heat exchange with air first is changed
Meeting frosting on hot device inner wall influences the work efficiency of heating system, in addition, it only has single heat-production functions, function is single,
Whole utilization efficiency is low.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome cascade refrigeration defrosting water heater of the prior art long
The defects of phase is low using rear heating efficiency, and function is single, and whole utilization is less efficient, so as to provide one kind in use
It can defrost in time, to improve heating efficiency, while multifunctional combination, the high cascade refrigeration defrosting hot water of overall utilization rate
Device.
In order to solve the above technical problem, the present invention provides a kind of cascade refrigeration defrost water heater, including：
One stage of compression circulation line and two-stage compression circulation line, the one stage of compression circulation line are provided with the first heat exchange
Device；
Second heat exchanger is connected between the one stage of compression circulation line and the two-stage compression circulation line, is used for
Give the heat transfer absorbed from the one stage of compression circulation line to the two-stage compression circulation line；
3rd heat exchanger is arranged in the two-stage compression circulation line, for absorbing the two-stage compression circulation line
In heat to heat the water of internal reservoir；
Refrigeration defrosting compression circulation line, is provided with the First Heat Exchanger and the 3rd heat exchanger, for by described in
Heat inside refrigeration defrosting compression circulation line sends the First Heat Exchanger to, to remove on the First Heat Exchanger inner wall
Frosting or absorb the heat of water in the 3rd heat exchanger, freeze to it.
Described cascade refrigeration defrosting water heater includes one article of water route and Liang Tiaofu roads in the 3rd heat exchanger,
The water route is arranged on simultaneously in the two-stage compression circulation line and the refrigeration defrosting compression circulation line, a fluorine
Road is arranged in the two-stage compression circulation line, and another fluorine road is arranged on the refrigeration defrosting compression circulation line
In, two fluorine roads are mutual indepedent.
The cascade refrigeration defrosting water heater, the one stage of compression circulation line include sequentially connected one stage of compression
Machine, the second heat exchanger, the first liquid storage device, first throttling device, First Heat Exchanger and the first gas-liquid separator；And/or
The two-stage compression circulation line includes sequentially connected split-compressor, the 3rd heat exchanger, the second liquid storage device, the
Two throttling sets, the second heat exchanger and the second vapour liquid separator.
The cascade refrigeration defrosting water heater, further includes and is arranged on the stage compressor and second heat exchanger
Between, only allow the medium in the stage compressor irreversibly deliver to the first check valve in second heat exchanger and
It is arranged between second heat exchanger and first liquid storage device, the medium in second heat exchanger is only allowed to irreversibly deliver
The second check valve into first liquid storage device.
The cascade refrigeration defrosting water heater, the refrigeration defrosting compression circulation line include sequentially connected described
Stage compressor, the First Heat Exchanger, the first throttling device, first liquid storage device, the 3rd heat exchanger and institute
State the first gas-liquid separator.
The cascade refrigeration defrosting water heater, further includes and is arranged on first liquid storage device and the 3rd heat exchanger
Between, only allow the medium in first liquid storage device irreversibly deliver to the 3rd check valve in the 3rd heat exchanger and
It is arranged between the 3rd heat exchanger and first gas-liquid separator, only allows the medium in the 3rd heat exchanger unidirectional
The 4th check valve being delivered in first gas-liquid separator.
Described cascade refrigeration defrosting water heater, the 3rd check valve are arranged on first liquid storage device and described the
Between the outlet of two check valves, the 4th check valve be arranged on the stage compressor and first check valve import it
Between.
Described cascade refrigeration defrosting water heater, between the stage compressor and second heat exchanger and institute
It states and is each provided with a reversal valve between split-compressor and the 3rd heat exchanger.
The cascade refrigeration defrosting water heater, the reversal valve is four-way reversing valve.
Described cascade refrigeration defrosting water heater, be additionally provided on the outside of the First Heat Exchanger one for provide pair
The air-supply arrangement of stream.
Technical solution of the present invention has the following advantages that：
The water heater 1. cascade refrigeration provided by the invention defrosts, when using water heater in winter, is connected to level-one pressure
The heat that the second heat exchanger between contracting circulation line and two-stage compression circulation line will be absorbed from one stage of compression circulation line
Two-stage compression circulation line is passed to, to heat the water in the 3rd heat exchanger of two-stage compression circulation line, is followed so as to complete heating
Ring；After water heater runs a period of time, by sending the heat inside the defrosting compression circulation line that freezes to first heat exchange
Device to remove the frosting on First Heat Exchanger inner wall, improves heating efficiency.When using water heater in summer, removed by refrigeration
The heat of water, freezes to it, is followed so as to complete refrigeration in the 3rd heat exchanger of Absorption of Medium in frost compression circulation line
Ring improves the overall utilization rate of water heater.
The water heater 2. cascade refrigeration provided by the invention defrosts, includes one article of water route and two articles of fluorine in the 3rd heat exchanger
Road, Liang Tiaofu are run on road independently of each other.It can so ensure there are enough water Xun Huans in the 3rd heat exchanger always, while heat
In Xun Huan and refrigeration cycle, the medium in circulation line each independently conveys, and is respectively completed heat release and endothermic process, will not be mutual
It influences, work efficiency is higher.
The water heater 3. cascade refrigeration provided by the invention defrosts, the refrigeration defrosting compression circulation line include connecting successively
The stage compressor that connects, the First Heat Exchanger, the first throttling device, first liquid storage device, the described 3rd change
Hot device and first gas-liquid separator.It need not so change in one stage of compression circulation line and two-stage compression circulation line
Element configuration only increases by two connecting lines, can be achieved with the purpose that defrosts and freeze, reduce production cost, realize more
Functionalization.
The water heater 4. cascade refrigeration provided by the invention defrosts, the first check valve, the second check valve, the 3rd check valve and
The setting of 4th check valve ensure that the one-way that medium conveys in connecting line, and then ensure different circulatory system work
Independence, improve work efficiency.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the operation principle schematic diagram of the cascade refrigeration defrosting water heater of the present invention.
Reference sign：
1- First Heat Exchangers；The second heat exchangers of 2-；The 3rd heat exchangers of 3-；The 3rd check valves of 4-；The 4th check valves of 5-；6- mono-
Grade compressor；The first liquid storage devices of 7-；8- first throttling devices；The first gas-liquid separators of 9-；10- split-compressors；20- second is stored up
Liquid device；30- second throttling devices；The second gas-liquid separators of 40-；50- air-supply arrangements；The first four-way reversing valves of 60-；70- second
Four-way reversing valve；The first check valves of 80-；The second check valves of 90-；21- incubators；22- pipelines；31- water inlet pipes；32- outlet pipes；
The first fluorine of 33- road；The second fluorine of 34- road.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other into conflict.
A kind of specific embodiment of cascade refrigeration defrosting water heater as shown in Figure 1, including one stage of compression circulation pipe
Road and two-stage compression circulation line, the one stage of compression circulation line are provided with First Heat Exchanger 1.Per one stage of compression circulation line
In refrigerant after being handled through overcompression by low-temperature low-pressure refrigerant gas transition be high-temperature high-pressure refrigerant gas, thus obtain
Heat is obtained, for carrying out heat exchange with the equipment in circulation line.Second heat exchanger 2 is connected to the one stage of compression Xun Huan
Between pipeline and the two-stage compression circulation line, when one stage of compression circulation line and two-stage compression circulation line work at the same time
When, give the two-stage compression circulation line for the heat transfer that will be absorbed from the one stage of compression circulation line.In this reality
It applies in example, one stage of compression circulation line is the left part in Fig. 1, and two-stage compression circulation line is the right part in Fig. 1, the
Two heat exchangers 2 are located at the center of Fig. 1, and the centre that the second heat exchanger 2 is arranged on whole device is more convenient for cycle from one stage of compression
The heat absorbed in pipeline passes to rapidly two-stage compression circulation line.3rd heat exchanger 3 is arranged on the two-stage compression Xun Huan
In pipeline, for absorbing the heat in the two-stage compression circulation line to heat the water of internal reservoir, to meet people to heat
The use demand of water.The heat that 3rd heat exchanger 3 absorbs includes three parts：It is obtained after the compression of one stage of compression circulation line refrigerant
Heat, refrigerant exchange the heat absorbed and the heat obtained after the compression of two-stage compression circulation line refrigerant with the external world, so i.e.
Make in the case where ambient temperature is relatively low, since certain heat, two level pressure has been provided previously in one stage of compression circulation line
, it is necessary to which the power of consumption is just smaller when contracting circulation line continues the compression of refrigerant on this basis, thus it is same for heating
For the water of sample volume, the technical solution of the present embodiment reduces the burden of every one stage of compression circulation line, reduces and is produced into
This.1 and second heat exchanger 2 of First Heat Exchanger all can be double media heat exchangers, or three media heat exchangers.When extraneous temperature
When spending relatively low, such as winter, 1 and second heat exchanger 2 of First Heat Exchanger are used as heat exchanger, and the circulatory system at this time is system
Heat circulating system.
Refrigeration defrosting compression circulation line, is provided with the First Heat Exchanger 1 and the 3rd heat exchanger 3, is in Fig. 1
Outermost layer pipeline, when ambient temperature is relatively low, such as winter, for the refrigeration defrosting to be compressed to the heat inside circulation line
The First Heat Exchanger 1 is sent to, to remove the frosting on 1 inner wall of First Heat Exchanger；Or when ambient temperature is higher, example
Such as summer, the refrigerant that refrigeration defrosting is compressed inside circulation line absorbs the heat of water in the 3rd heat exchanger 3, it is made
Cold, the circulatory system at this time is cooling cycle system.
Include one article of water route and Liang Tiaofu roads in 3rd heat exchanger 3, the water route is arranged on the two level simultaneously
It compresses in circulation line and the refrigeration defrosting compression circulation line, specifically includes a water inlet pipe 31 and an outlet pipe 32, intake
Pipe 31 connects the 3rd heat exchanger 3, other end connection water supply installation so that with one end of outlet pipe 32 in the 3rd heat exchanger 3 always
There is enough water to carry out heat exchange circulation.One fluorine road is arranged in the two-stage compression circulation line, described in another
Fluorine road is arranged in the refrigeration defrosting compression circulation line, and two fluorine roads are mutual indepedent, specifically include mounted on the 3rd
The first fluorine pipe 33 and the second fluorine pipe 34 in heat exchanger 3, the import position for the first fluorine pipe 33 being connected with two-stage compression circulation line
In the top of the 3rd heat exchanger 3, outlet is completely disposed at the 3rd heat exchanger 3 positioned at the lower part of the 3rd heat exchanger 3, the first fluorine pipe 33
In；The import for the second fluorine pipe 34 being connected with refrigeration defrosting compression circulation line also is located at the top of the 3rd heat exchanger 3, outlet
Positioned at the lower part of the 3rd heat exchanger 3, but the second fluorine pipe 34 is partially disposed in the 3rd heat exchanger 3, and another part spirals the 3rd
The outside of heat exchanger 3, to change the position of inlet and outlet.
In the present embodiment, the one stage of compression circulation line includes sequentially connected stage compressor 6, the second heat exchanger
2nd, the first liquid storage device 7, first throttling device 8,1 and first gas-liquid separator 9 of First Heat Exchanger；With the two-stage compression circulation pipe
Road includes sequentially connected split-compressor 10, the 3rd heat exchanger 3, the second liquid storage device 20, second throttling device 30, second and exchanges heat
2 and second vapour liquid separator 40 of device.Stage compressor 6 is used for the refrigerant in circulation line is low by low temperature with split-compressor 10
Body of calming the anger is changed into high temperature and high pressure gas；First liquid storage device 7 and the second liquid storage device 20 are used for refrigerant and the second heat exchanger 2 or the
The liquid that three heat exchangers 3 condense after the heat exchange is stored；First throttling device 8 and second throttling device 30 are used for refrigerant
In gas be cooled into the gas-liquid mixture of low-temp low-pressure；First Heat Exchanger 1 is used for the low temperature in circulation line is low
The gas-liquid mixture of pressure carries out heat exchange with outside air, to absorb the heat in outside air, becomes gas after evaporation；The
One gas-liquid separator 9 and the second gas-liquid separator 40 are used to after a small amount of liquid in the gas after evaporating is separated send respectively
Enter stage compressor 6 and split-compressor 10 is compressed, so as to complete heating Xun Huan.
It further includes and is arranged between the stage compressor 6 and second heat exchanger 2, only allows the stage compressor
Medium in 6 irreversibly delivers to the first check valve 80 in second heat exchanger 2 and is arranged on second heat exchanger 2
Between first liquid storage device 7, the medium in second heat exchanger 2 is only allowed to irreversibly deliver to first liquid storage device 7
In the second check valve 90.
The refrigeration defrosting compression circulation line includes the sequentially connected stage compressor 6, the First Heat Exchanger
1st, the first throttling device 8, first liquid storage device 7, the 3rd heat exchanger 3 and first gas-liquid separator 9.Also wrap
It includes and is arranged between first liquid storage device 7 and the 3rd heat exchanger 3, only allows medium list in first liquid storage device 7
To the 3rd check valve 4 being delivered in the 3rd heat exchanger 3 and it is arranged on the 3rd heat exchanger 3 and first gas
Between liquid/gas separator 9, only the medium in the 3rd heat exchanger 3 is allowed to irreversibly deliver into first gas-liquid separator 9
4th check valve 5.Refrigerant of the stage compressor 6 in the defrosting compression circulation line that will freeze is changed by low temperature low pressure gas
High temperature and high pressure gas；First Heat Exchanger 1 is used for the high temperature and high pressure gas and outside air for defrosting and compressing in circulation line that will freeze
Heat exchange is carried out, to release heat, is condensed into high temperature high pressure liquid, while heats the frosting on 1 inner wall of First Heat Exchanger, it will
It is removed in time；First throttling device 8 is used to high temperature high pressure liquid being changed into low temperature and low pressure liquid；First liquid storage device 7 is used for
Store low temperature and low pressure liquid；3rd heat exchanger 3 is used to provide heat for low temperature and low pressure liquid, is vaporized as low-temp low-pressure gas
Body, while itself water temperature drop；First gas-liquid separator 9 is used to after a small amount of liquid in low temperature low pressure gas is separated send
Enter stage compressor 6 to be compressed, so as to complete refrigeration cycle.
3rd check valve 4 is arranged between the outlet of first liquid storage device 7 and second check valve 90, described
4th check valve 5 is arranged between the import of the stage compressor 6 and first check valve 80.It i.e. only need to be in the first liquid storage
Increase branch's connecting line on the connecting line of 7 and second heat exchanger 2 of device, installation the 3rd is unidirectional on branch's connecting line
Valve 4, the other end is connected to the import of the second fluorine pipe 34 in the 3rd heat exchanger 3, while is changed in stage compressor 6 and second
Increase branch's connecting line on the connecting line of hot device 2, the 4th check valve 5, the other end are installed on branch's connecting line
It is connected to the outlet of the second fluorine pipe 34 in the 3rd heat exchanger 3.
Between the stage compressor 6 and second heat exchanger 2 and the split-compressor 10 and the described 3rd
A reversal valve is each provided between heat exchanger 3.In the present embodiment, the reversal valve is four-way reversing valve, is respectively the one or four
60 and second four-way reversing valve 70 of logical reversal valve.In heating cycles, when refrigerant is from stage compressor 6 and split-compressor 10
During output, respectively by the under shed and right opening of the first four-way reversing valve 60 and the second four-way reversing valve 70；When refrigerant is from
When being exported in one heat exchanger 1 and the second heat exchanger 2, then respectively by the first four-way reversing valve 60 and the second four-way reversing valve 70
Left opening and upper opening, enter back into the first gas-liquid separator 9 and the second gas-liquid separator 40 carries out the separation of gas and liquid, this
Sample ensures that the independence of refrigerant different phase in cyclic process, will not generate and interfere with each other, and then forms a job
Xun Huan, while save the usage quantity of reversal valve.In refrigeration cycle, when refrigerant is exported from stage compressor 6, pass through
The under shed of first four-way reversing valve 60 and left opening；When refrigerant is exported from the 3rd heat exchanger 3, then pass through the one or four respectively
The right opening and upper opening of logical reversal valve 60, enter back into the separation that the first gas-liquid separator 9 carries out gas and liquid.
One is additionally provided in the outside of the First Heat Exchanger 1 for providing the air-supply arrangement 50 of convection current.In the present embodiment
In, air-supply arrangement 50 is wind turbine, and mounted on the one side of First Heat Exchanger 1, outside air is sent into First Heat Exchanger 1 in time
In, accelerate the exchange of heat.
Second heat exchanger 2 includes incubator 21 and two pipelines 22 being arranged in the incubator 21, and one
Pipeline is connected with the one stage of compression circulation line, and another pipeline is connected with the two-stage compression circulation line.
Alternatively, one can also respectively be set in the both sides of stage compressor 6 and split-compressor 10
A two-way reversal valve, above-mentioned various components are sequentially connected with.
In ambient temperature relatively low winter, superposition type water heater starts Two-stage Compression：Second heat exchanger in order to prevent
In hypertonia, after usually first starting two-stage compression circulation line 60~90s, restart one stage of compression circulation line, this
When two-stage compression circulation line close.Stage compressor is changed into the refrigerant gas of high temperature and pressure after refrigerant therein is compressed
It is delivered to through the first four-way reversing valve in the second heat exchanger and carries out heat release, the second heat exchanger absorbs heat, two-stage compression circulation pipe
It route in having pre-actuated certain time, therefore the refrigerant in pipeline can absorb the heat in the second heat exchanger at this time, with drop
Pressure in low second heat exchanger；Refrigerant after heat release, which enters in the first liquid storage device, stores condensed liquid, then
It is changed into the gas-liquid mixture of low-temp low-pressure by first throttling device, enters back into First Heat Exchanger and changed with outside air
Heat, after the heat for absorbing outside air, again through the first four-way reversing valve into carrying out gas and liquid in the first gas-liquid separator
The separation of body eventually passes back to form Xun Huan in stage compressor.
After the stage compressor regular hour is started, which can be set according to actual demand, start two
Grade compressor, split-compressor are changed into high temperature and pressure after the refrigerant of the heat absorbed in one stage of compression circulation line is compressed
Refrigerant gas be delivered to through the second four-way reversing valve in the 3rd heat exchanger, and then the water in the 3rd heat exchanger is added
Heat；Refrigerant after heat release, which enters in the second liquid storage device, stores condensed liquid, then changes through second throttling device
For the gas-liquid mixture of low-temp low-pressure, gas-liquid mixture enters in the second heat exchanger, absorbs the heat of one stage of compression circulation line,
And separation of second four-way reversing valve into progress gas and liquid in the second gas-liquid separator is again passed by, eventually pass back to two level
Heating Xun Huan is formed in compressor.
After water heater runs a period of time in winter, since First Heat Exchanger is constantly absorbing the heat of outside air,
At the same time, the vapor in air, which runs into First Heat Exchanger and is condensed into frost, is attached on inner wall, when accumulation to certain thickness
Afterwards, the heating efficiency of water heater can be seriously affected, at this time, it may be necessary to start three stage compression Xun Huan, i.e., stage compressor removes refrigeration
Refrigerant in frost compression circulation line is changed into high temperature and high pressure gas by low temperature low pressure gas, is delivered in First Heat Exchanger；It is high
Warm gases at high pressure carry out heat exchange when by First Heat Exchanger with outside air, release heat, are condensed into high-temperature high-pressure liquid
Body, while liberated heat can heat the frosting on First Heat Exchanger inner wall, it is removed in time；High temperature and pressure after heat release
Liquid is changed into low temperature and low pressure liquid using first throttling device, and is stored in the first liquid storage device；Then it is delivered to the 3rd
In heat exchanger, the heat gasification of water in the 3rd heat exchanger is absorbed for low temperature low pressure gas, while itself water temperature in the 3rd heat exchanger
Decline；Low temperature low pressure gas is then delivered in the first gas-liquid separator, and the first gas-liquid separator is sent after a small amount of liquid is separated
Enter stage compressor to be compressed, so as to complete defrosting Xun Huan.Due to the thinner thickness of frosting, which need to only run 1-
2min, thereby guaranteeing that the water temperature in the 3rd heat exchanger is unlikely reduces excessively.
In ambient temperature higher summer, superposition type water heater starts three stage compression Xun Huan, the course of work and defrosting
Cyclic process is identical, and simply run time is longer, to ensure that the water temperature in the 3rd heat exchanger reaches required temperature.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
- The water heater 1. a kind of cascade refrigeration defrosts, which is characterized in that including：One stage of compression circulation line and two-stage compression circulation line, the one stage of compression circulation line are provided with First Heat Exchanger (1)；Second heat exchanger (2) is connected between the one stage of compression circulation line and the two-stage compression circulation line, for inciting somebody to action The heat transfer absorbed from the one stage of compression circulation line gives the two-stage compression circulation line；3rd heat exchanger (3) is arranged in the two-stage compression circulation line, for absorbing in the two-stage compression circulation line Heat to heat the water of internal reservoir；Refrigeration defrosting compression circulation line, is provided with the First Heat Exchanger (1) and the 3rd heat exchanger (3), for by institute It states the heat inside refrigeration defrosting compression circulation line and sends the First Heat Exchanger (1) to, to remove the First Heat Exchanger (1) frosting on inner wall or the heat of water in the 3rd heat exchanger (3) is absorbed, freezed to it.
- The water heater 2. cascade refrigeration according to claim 1 defrosts, which is characterized in that in the 3rd heat exchanger (3) Include a water route and Liang Tiaofu roads, the water route is arranged on the two-stage compression circulation line and the refrigeration defrosting simultaneously It compresses in circulation line, a fluorine road is arranged in the two-stage compression circulation line, and another fluorine road is arranged on In the refrigeration defrosting compression circulation line, two fluorine roads are mutual indepedent.
- The water heater 3. cascade refrigeration according to claim 2 defrosts, which is characterized in that the one stage of compression circulation line Including sequentially connected stage compressor (6), the second heat exchanger (2), the first liquid storage device (7), first throttling device (8), first Heat exchanger (1) and the first gas-liquid separator (9)；And/orThe two-stage compression circulation line includes sequentially connected split-compressor (10), the 3rd heat exchanger (3), the second liquid storage device (20), second throttling device (30), the second heat exchanger (2) and the second vapour liquid separator (40).
- The water heater 4. cascade refrigeration according to claim 3 defrosts, which is characterized in that further include and be arranged on the level-one Between compressor (6) and second heat exchanger (2), the medium in the stage compressor (6) is only allowed to irreversibly deliver to institute It states the first check valve (80) in the second heat exchanger (2) and is arranged on second heat exchanger (2) and first liquid storage device (7) between, only that the medium in second heat exchanger (2) is allowed to irreversibly deliver is single to second in first liquid storage device (7) To valve (90).
- The water heater 5. cascade refrigeration according to claim 4 defrosts, which is characterized in that the refrigeration defrosting compression Xun Huan Pipeline includes the sequentially connected stage compressor (6), the First Heat Exchanger (1), the first throttling device (8), institute State the first liquid storage device (7), the 3rd heat exchanger (3) and first gas-liquid separator (9).
- The water heater 6. cascade refrigeration according to claim 5 defrosts, which is characterized in that further include and be arranged on described first Between liquid storage device (7) and the 3rd heat exchanger (3), the medium in first liquid storage device (7) is only allowed to irreversibly deliver to institute It states the 3rd check valve (4) in the 3rd heat exchanger (3) and is arranged on the 3rd heat exchanger (3) and first gas-liquid point From between device (9), the medium in the 3rd heat exchanger (3) is only allowed to irreversibly deliver into first gas-liquid separator (9) The 4th check valve (5).
- The water heater 7. cascade refrigeration according to claim 6 defrosts, which is characterized in that the 3rd check valve (4) sets It puts between first liquid storage device (7) and the outlet of second check valve (90), the 4th check valve (5) is arranged on institute Between the import for stating stage compressor (6) and first check valve (80).
- The water heater 8. cascade refrigeration according to claim 3 defrosts, which is characterized in that in the stage compressor (6) It is each provided between second heat exchanger (2) and between the split-compressor (10) and the 3rd heat exchanger (3) One reversal valve.
- The water heater 9. cascade refrigeration according to claim 8 defrosts, which is characterized in that the reversal valve commutates for four-way Valve.
- 10. according to claim 1-9 any one of them cascade refrigeration defrosting water heater, which is characterized in that described first One is additionally provided on the outside of heat exchanger (1) for providing the air-supply arrangement (50) of convection current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064901.5A CN108072173B (en) | 2018-01-23 | 2018-01-23 | Overlapping type refrigeration defrosting water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064901.5A CN108072173B (en) | 2018-01-23 | 2018-01-23 | Overlapping type refrigeration defrosting water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108072173A true CN108072173A (en) | 2018-05-25 |
| CN108072173B CN108072173B (en) | 2024-01-30 |
Family
ID=62156763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810064901.5A Active CN108072173B (en) | 2018-01-23 | 2018-01-23 | Overlapping type refrigeration defrosting water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108072173B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432172A (en) * | 2021-06-25 | 2021-09-24 | 青岛海信日立空调系统有限公司 | Heat pump unit indoor unit and heat pump unit |
| WO2022257993A1 (en) * | 2021-06-08 | 2022-12-15 | 青岛海信日立空调系统有限公司 | Heat pump system and control method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205747568U (en) * | 2016-07-01 | 2016-11-30 | 杭州佳力斯韦姆新能源科技有限公司 | Superposition type CO with cross valve commutation defrosting2heat pump |
| CN107044729A (en) * | 2017-05-16 | 2017-08-15 | 浙江正理生能科技有限公司 | A kind of cascade type heat pump water heater |
| JP2017166761A (en) * | 2016-03-17 | 2017-09-21 | パナソニックＩｐマネジメント株式会社 | Heat Pump Water Heater |
| CN207751180U (en) * | 2018-01-23 | 2018-08-21 | 浙江正理生能科技有限公司 | A kind of cascade refrigeration defrosting water heater |
-
2018
- 2018-01-23 CN CN201810064901.5A patent/CN108072173B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017166761A (en) * | 2016-03-17 | 2017-09-21 | パナソニックＩｐマネジメント株式会社 | Heat Pump Water Heater |
| CN205747568U (en) * | 2016-07-01 | 2016-11-30 | 杭州佳力斯韦姆新能源科技有限公司 | Superposition type CO with cross valve commutation defrosting2heat pump |
| CN107044729A (en) * | 2017-05-16 | 2017-08-15 | 浙江正理生能科技有限公司 | A kind of cascade type heat pump water heater |
| CN207751180U (en) * | 2018-01-23 | 2018-08-21 | 浙江正理生能科技有限公司 | A kind of cascade refrigeration defrosting water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257993A1 (en) * | 2021-06-08 | 2022-12-15 | 青岛海信日立空调系统有限公司 | Heat pump system and control method therefor |
| CN113432172A (en) * | 2021-06-25 | 2021-09-24 | 青岛海信日立空调系统有限公司 | Heat pump unit indoor unit and heat pump unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108072173B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107388621B (en) | Heat-storage solar energy couples air injection enthalpy-increasing type air source heat pump system and its control method | |
| CN101650095B (en) | Multistage absorption refrigerating/heat pump unit | |
| CN102022793B (en) | Latent heat recovery-based high-efficiency heat pump type heat source tower solution regenerating device and method | |
| CN101571330B (en) | Multifunctional frost-free solar-assisted heat pump system | |
| CN101236028A (en) | Solar energy-air source energy-saving type solution heat pump device | |
| CN108302838A (en) | A kind of heat-storage solar energy coupling air source heat pump system and its control method | |
| CN203413824U (en) | Bypass-defrosting enhanced vapor injection type heat pump hot water machine set with low-temperature air source | |
| CN209655400U (en) | A kind of heat pump heating system | |
| CN101876496B (en) | Double-evaporator direct-fired absorption refrigerating and heating unit | |
| CN109341165A (en) | A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy | |
| CN110030762A (en) | Solar energy-air source couples heat source Multifunctional heat pump system | |
| CN109631393A (en) | The double-effect lithium bromide absorption type refrigerating plant of fume afterheat and solar energy coupling driving | |
| CN108800651A (en) | A kind of thermoelectricity air cooling tubes condenser safe production in summer device based on power peak regulation round the clock | |
| CN207751180U (en) | A kind of cascade refrigeration defrosting water heater | |
| CN208720537U (en) | A kind of superposition type solar water unit | |
| CN108072173A (en) | A kind of cascade refrigeration defrosting water heater | |
| CN110030765A (en) | A kind of dry heating cooling supply composite system | |
| CN201875830U (en) | Latent heat recycling based efficient heat pump-type device for regenerating solutions in heat-source tower | |
| CN107044729A (en) | A kind of cascade type heat pump water heater | |
| CN208139419U (en) | A kind of heating installation of air-source and water source combination | |
| CN110469896A (en) | A kind of solar air source hybrid system | |
| CN103512271B (en) | Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger | |
| CN113915786B (en) | Compression type heat pump device utilizing latent heat for energy storage | |
| CN102252480A (en) | Solar energy refrigerator | |
| CN107270536A (en) | A kind of cascade type heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |