CN106642808A - Heating heat pump system used in ultralow-temperature environment - Google Patents
Heating heat pump system used in ultralow-temperature environment Download PDFInfo
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- CN106642808A CN106642808A CN201611203961.8A CN201611203961A CN106642808A CN 106642808 A CN106642808 A CN 106642808A CN 201611203961 A CN201611203961 A CN 201611203961A CN 106642808 A CN106642808 A CN 106642808A
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- Prior art keywords
- condenser
- water
- circulation loop
- water pipe
- heat pump
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Classifications
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- 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
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
Abstract
The invention provides a heating heat pump system used in an ultralow-temperature environment. The heating heat pump system comprises a main circulation loop which is composed of a first compressor (1), a first condenser (2), a vortex tube (4) and an evaporator (7), wherein the first condenser (2) is used for exchanging heat with a first water pipe (16) to make hot water or achieve heating, and a second condenser (5) is arranged on a pipeline between the first condenser (2) and the evaporator (7). The heating heat pump system further comprises an auxiliary circulation loop which is connected with the main circulation loop in an overlying mode through the second condenser (5), wherein the auxiliary circulation loop is used for exchanging heat with a second water pipe (17) to make hot water or achieve heating. By means of the heating heat pump system, heat of refrigerant in the main circulation loop can be further absorbed, intermediate-temperate water is made through the overlying circulation loop and is supplied together with high-temperature water made through the first condenser, the temperature range of made hot water is widened, intelligent regulation of the water temperature is achieved, and different demands of different users for hot water are met; energy at the hot end of the vortex tube is effectively utilized, and the COP of the system is improved.
Description
Technical field
The invention belongs to technical field is changed and utilized to heat energy, and in particular to heating heat pump under a kind of ultra-low temperature surroundings
System.
Background technology
Air source heat pump of the prior art is in use when the temperature of the surroundings is low (such as in cold district, ratio
Such as China northeast area), it is impossible to fully drawing the heat in environment is used to heat, heat or hot water preparing, causes whole
The efficiency of heat pump is relatively low, and COP values are relatively low, and energy consumption is larger, and also greatly the unfavorable phenomenon such as frosting possibly occurs, causes
The service behaviour of whole system is poor, it is impossible to meet the demand that user normally uses (for example heat, heat or hot water preparing)；
And hot water temperature's scope for making is either higher, or relatively low, the temperature range of hot water preparing is limited, it is impossible to meet user institute
Need the demand and heating demands of hot water temperature.Trans-critical cycle CO in prior art2Technology is in heating field CO2Go out air cooler temperature compared with
Height, Energy Efficiency Ratio is not high；Freon system heat sharp-decay at low ambient temperatures, and affected by self property, it is difficult to make height
Warm water.Therefore it is badly in need of developing a kind of new heat pump, to improve above-mentioned rough sledding.
Because there is the efficiency of system when the temperature of the surroundings is low in use in air source heat pump of the prior art
Relatively low, COP values are relatively low, and energy consumption is larger, and heating hot water and/or hot water preparing temperature range can not meet the skills such as user's request
Art problem, therefore research and design of the present invention goes out heating heat pump under a kind of ultra-low temperature surroundings.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome air source heat pump of the prior art to there is hot water preparing
Temperature range is limited, can not meet the defect of user's request, so as to provide a kind of ultra-low temperature surroundings under heating heat pump.
The present invention provides heating heat pump under a kind of ultra-low temperature surroundings, and it is included by the first compressor, first cold
Condenser, the first expansion valve, the main circulation loop of evaporimeter composition, first condenser is used for the heat exchange of the first water pipe to produce
Hot water or heating, wherein being additionally provided with the second condensation on the pipeline between first condenser and first expansion valve
Device, also includes the auxiliary circulation loop being connected with the main circulation loop overlapping by second condenser, and the auxiliary is followed
Loop back path is used to be exchanged heat with hot water preparing or be heated with the second water pipe.
Preferably, the auxiliary circulation loop includes the second compressor, the second expansion valve, the 3rd condenser and described second
Condenser, second condenser as the auxiliary circulation loop evaporimeter, and the 3rd condenser connection described the
Two water pipes to it exchanging heat.
Preferably, in the main circulation loop, also set between first condenser and second condenser
It is equipped with vortex tube, the import of the vortex tube is connected to first condenser, first outlet is connected to second condenser, second
Outlet is connected with the bypass branch that can be used for hot water preparing or heating.
Preferably, the first outlet is the low-temperature outlet of the vortex tube, and the second outlet is the vortex tube
Hot outlet.
Preferably, the 4th condenser is additionally provided with the bypass branch, the 4th condenser is connected with the 3rd water pipe
And exchanged heat with hot water preparing or heating with the 3rd water pipe.
Preferably, the downstream on the bypass branch positioned at the 4th condenser is additionally provided with the 3rd expansion valve, should
The other end of bypass branch is linked back to the suction end of first compressor.
Preferably, first water pipe, second water pipe and the 3rd water pipe are connected to output water pipe after converging, and
The tune of control water route break-make is provided with least one of first water pipe, second water pipe, the 3rd water pipe
Section valve.
Preferably, the 3rd water pipe is connected to first water pipe, and first water pipe and second water pipe are logical
Cross water mixing valve and carry out water route and converge, the output end of the water mixing valve is connected to the output water pipe, and the water mixing valve also includes
The water inlet pipe being connected with running water.
Preferably, on the main circulation loop, it is positioned at the downstream of first condenser or cold positioned at described second
The downstream of condenser is additionally provided with regenerator, forms a heat exchange side of the regenerator, and the downstream pipe of the evaporimeter runs through
The regenerator, another heat exchange side for forming the regenerator.
Preferably, on the main circulation loop, at the suction end of first compressor be additionally provided with oil-gas-liquid
Separator, the oil gas liquid/gas separator includes gas outlet end and oil export end, and the gas outlet end is connected to first pressure
The suction end of contracting machine, the oil export end is connected in the oil sump of first compressor.
Preferably, the refrigerant in the main circulation loop and in bypass branch is CO2, in the auxiliary circulation loop
Refrigerant is R134a.
Heating heat pump has the advantages that under a kind of ultra-low temperature surroundings that the present invention is provided：
1. by heating heat pump under a kind of ultra-low temperature surroundings of present invention offer, by original heat-pump hot-water
The downstream of the condenser in the closed circuit of system is set up the condenser of a low-temperature level and is mutually answered using auxiliary circulation loop
Folded mode, can further absorb from high-temperature level condenser the heat in the refrigerant for discharging heat, enabling by multiple
Folded auxiliary circulation loop can further produce the relatively low water of temperature, together with the higher water of the temperature produced with the first condenser,
The temperature range for enabling to hot water preparing is greatly widened, and realizes the intelligent regulation of water temperature, disclosure satisfy that different user
Demand to the different temperatures of hot water；
2. by heating heat pump under a kind of ultra-low temperature surroundings of present invention offer, by the second of cascade system
After condenser heat exchange refrigerant is continued cooled, effectively increase degree of supercooling, appearance is compared after expansion valve second throttle
Easily make CO2Refrigerant is expanded to worst cold case, and in ultralow-temperature operation conditions work the heat exchange efficiency with evaporimeter can be improved, and combines
Throttle twice and effectively improve the efficiency of system, reduce energy consumption, improve the COP values of system；
3. by heating heat pump under a kind of ultra-low temperature surroundings of present invention offer, by cold first and second
Vortex tube is set between condenser and the form of the bypass branch for connecting is exported with vortex tube, a part can be bypassed cold through heat release
Solidifying refrigerant is into bypass branch and then for heat release hot water preparing or heating, using the teaching of the invention it is possible to provide another part different temperatures is interval
Hot water so that original hot water temperature's scope is further increased, and more preferably meets difference of the different user to hot water
The demand of temperature；
4. by heating heat pump under a kind of ultra-low temperature surroundings of present invention offer, by cold first and second
Vortex tube is set between condenser and the form of the bypass branch for connecting is exported with vortex tube, and makes the other end of bypass branch be linked back
To the suction end of the first compressor, the Gas-supplying enthalpy-increasing loop that the bypass branch forms main circulation loop can be passed through, can be in room
When external environment temperature is relatively low continue ensure closed circuit in refrigerant circulation flowing, prevent evaporimeter from not working and cause refrigerant without
Method be back to compressor the occurrence of, and efficiently utilize the heat in vortex tube hot junction, improve the efficiency of system,
Energy consumption is reduced, COP values are improved, and the appearance of frosting situation can also be optimized.
5. heating heat pump under a kind of ultra-low temperature surroundings for being provided by the present invention, by by first, second, the
Three water pipes are converged and arrange valve on each water pipe and coordinate the form of running water pipe, can be according to user to water temperature
The hot water of the different water temperatures for needing to meet user's needs at regulation and mixing of height, so as to applicability is wider, consumer satisfaction
Degree is higher.
6., by heating heat pump under a kind of ultra-low temperature surroundings of present invention offer, Trans-critical cycle CO make use of2Compared with
High energy efficiency ratio and the advantage for going out high-temperature-hot-water, and the condensation of a low-temperature level is set up using the condenser downstream end in closed circuit
Device, realized by the way of the phase overlapping of auxiliary circulation loop recirculated water inflow temperature it is higher (>40 DEG C) and CO2Temperature is reduced
To critical point (31 DEG C) below, Trans-critical cycle CO is taken full advantage of2The advantage and CO of heat pump2In the superior flowing of ultra low temperature
Performance and heat exchange property, realize ultra-low temperature air source heat pump heating demands.
Description of the drawings
Fig. 1 is the structural representation of heating heat pump under a kind of ultra-low temperature surroundings of the invention.
Reference is expressed as in figure：
1-the first compressor (or claim CO2Compressor), the 2-the first condenser (or claim CO2Air cooler), 3-regenerator,
4-vortex tube, the 5-the second condenser (or claiming low temperature air cooled device), the 6-the first expansion valve (or claiming first throttle valve), 7-evaporation
Device, 8-oil gas liquid/gas separator, 81-gas outlet end, 82-oil export end, the 9-the second compressor (or claim R134a compressions
Machine), the 10-the three condenser (or claiming R134a condensers), the 11-the second expansion valve (or claiming second throttle), 12-the four is cold
Condenser (or claiming heat exchanger), the 13-the three expansion valve (or claiming the 3rd choke valve), 14-regulating valve, 15-water mixing valve, 16-the
One water pipe, the 17-the second water pipe, the 18-the three water pipe, 19-bypass branch, 20-output water pipe, 21-water inlet pipe.
Specific embodiment
As shown in figure 1, the present invention provides heating (water temp adjustable) heat pump under a kind of ultra-low temperature surroundings, it includes
The main circulation loop being made up of the first compressor 1, the first condenser 2, the first expansion valve 6, evaporimeter 7, first condenser 2
For exchanging heat with hot water preparing or heating with the first water pipe 16, wherein first condenser 2 and first expansion valve 6 it
Between pipeline on be additionally provided with the second condenser 5, also include connecting with the main circulation loop overlapping by second condenser 5
The auxiliary circulation loop for connecing, the auxiliary circulation loop is used to be exchanged heat with hot water preparing or be supplied with the second water pipe 17
It is warm.
By heating (water temp adjustable) heat pump under a kind of ultra-low temperature surroundings that the present invention is provided, by original
The downstream of the condenser in the closed circuit of heat pump hot-water system sets up the condenser of a low-temperature level and adopts auxiliary circulation
The mode of loop phase overlapping, can further absorb from high-temperature level condenser the heat in the refrigerant for discharging heat so that energy
Enough the relatively low water of temperature can further be produced by overlapping auxiliary circulation loop, it is higher with the temperature that the first condenser is produced
Water together, greatly widen by the temperature range for enabling to hot water preparing, disclosure satisfy that different temperatures of the different user to hot water
Demand.Need exist for explaining is exactly, why using overlapping auxiliary circulation loop, to be because if in the second condensation
Be connected a water lines on device, because the temperature of now refrigerant is relatively low, not necessarily ensure that refrigerant water can be carried out heat release from
And hot water preparing, but employ after overlapping auxiliary circulation loop, just auxiliary circulation can be driven by the power consumption of compressor
Loop from the second condenser constantly draw heat, for hot water preparing, this be the present invention one it is big improve, can not only
The interval hot water of different temperatures is enough produced, moreover it is possible to the continuously hot water preparing from the relatively low refrigerant of temperature, for heating
Or heating.
And it is cooled that the present invention causes refrigerant to continue after the second condenser heat exchange using cascade system, effectively
Its degree of supercooling (can preferably be cooled to 0 DEG C or so) is increased, is easier to make CO after expansion valve second throttle2Refrigerant is swollen
It is swollen (to preferably reach to -40 DEG C or so left and right) to worst cold case, can improve in ultralow-temperature operation conditions work and be changed with evaporimeter
The thermal efficiency, improves the COP values of system.
Preferably, the auxiliary circulation loop includes the second compressor 9, the second expansion valve 11, the 3rd condenser 10 and institute
State the second condenser 5, second condenser 5 as the auxiliary circulation loop evaporimeter, and the 3rd condenser 10
Connect second water pipe 17 to exchange heat to it.By by auxiliary circulation loop include the second compressor, the second expansion valve,
3rd condenser and the second condenser, can form it into a refrigeration or heat pump cycle loop, and by the second condenser with
Heat exchange is carried out between main circulation loop, by compressor work so that auxiliary circulation loop absorbs heat from main circulation loop
Amount, then water is heated by the 3rd condenser 10 on auxiliary circulation loop, produce with the first condenser not so as to reach
Synthermal interval hot water, with the temperature required scope for improving heating hot water or heating hot water, meets the extensive requirement of user.
Preferably, in the main circulation loop, between first condenser 2 and second condenser 5 also
Vortex tube 4 is provided with, the import of the vortex tube 4 is connected to first condenser 2, and first outlet is connected to second condenser
5, second outlet is connected with the bypass branch 19 that can be used for hot water preparing or heating.
By heating (water temp adjustable) heat pump under a kind of ultra-low temperature surroundings that the present invention is provided, by first
And second form of bypass branch for vortex tube being set between condenser and being connected with vortex tube outlet, a part of Jing can be bypassed
The refrigerant of exothermic condensation is crossed into bypass branch and then is used for heat release hot water preparing or heating, using the teaching of the invention it is possible to provide another part is different
The hot water of temperature range so that original hot water temperature's scope is further increased, and more preferably meets different user to heat
The demand of the different temperatures of water.
Preferably, the first outlet is the low-temperature outlet of the vortex tube 4, and the second outlet is the vortex tube 4
Hot outlet.Select to enable to what is be connected with the second condenser for its low-temperature outlet by the first outlet by vortex tube
Refrigerant in pipeline forces down the refrigerant of temperature in being, second outlet is selected to enable to enter in bypass branch for hot outlet
Refrigerant is the refrigerant of middle super pressure-high temperature, so that having heat and then can be in water pipe into the refrigerant in bypass branch
Water is heated so that the process of heating hot water preparing can be continued for.
Preferably, the 4th condenser 12 is additionally provided with the bypass branch 19, the 4th condenser 12 is connected with
Three water pipes 18 are simultaneously exchanged heat with hot water preparing or heating with the 3rd water pipe 18.This is the Heat Pump of the water temp adjustable of the present invention
The preferred embodiment that the interval hot water of different temperatures can further be produced of water system, by arranging the on bypass branch
Four condensers and the 3rd water pipe, can be exchanged heat by the 4th condenser to the 3rd water pipe, so as to produce the 3rd water pipe in
Hot water is used to heat or heat.
Preferably, the downstream on the bypass branch 19 positioned at the 4th condenser 12 is additionally provided with the 3rd expansion valve
13, the other end of the bypass branch 19 is linked back to the suction end of first compressor 1.
By heating (water temp adjustable) heat pump under a kind of ultra-low temperature surroundings that the present invention is provided, by bypass
The form of the 3rd expansion valve is set positioned at the downstream of the 3rd condenser on branch road, and makes the other end of bypass branch be linked back to the
The suction end of one compressor, can pass through the Gas-supplying enthalpy-increasing loop that the bypass branch forms main circulation loop, can be in outdoor ring
Continue to ensure the refrigerant circulation flowing in closed circuit when border temperature is relatively low, prevent evaporimeter from not working and cause refrigerant to return
Flow to compressor the occurrence of, effectively improve the efficiency of system, reduce energy consumption, improve COP values, and can also prevent
The appearance of frosting situation.
Preferably, first water pipe 16, second water pipe 17 and the 3rd water pipe 18 are connected to output after converging
Water pipe 20, and it is provided with control at least one of first water pipe 16, second water pipe 17, the 3rd water pipe 18
The regulating valve of water route break-make processed.Three water pipes are converged can effectively be mixed to the interval hot water of three different temperatures,
And with reference to the form of regulating valve is arranged at least one of three water pipes, regulating valve is respectively provided with preferably three water pipes,
It is capable of the difference of the temperature of hot water according to the actual requirements, opens or closes corresponding water pipe, so as to form the different mixing of hot water,
To meet the demand of actual hot water temperature, the applicable performance of heat pump hot-water system is improve, improve the satisfaction of consumer.
Preferably, the 3rd water pipe 18 is connected to first water pipe 16, and first water pipe 16 and described second
Water pipe 17 carries out water route and converges by water mixing valve 15, and the output end of the water mixing valve 15 is connected to the output water pipe 20, and institute
State the water inlet pipe 21 that water mixing valve 15 also includes being connected with running water.It is right to be effectively realized by the version of water mixing valve
Water lines more than multichannel are mixed, and by also setting up the version of the water inlet pipe being connected with running water, can be right
Aforementioned three road water pipe remixes injection running water (i.e. cold water) such that it is able to which aforesaid mixed hot water is lowered the temperature, Jin Erjin
One step more efficiently adjusts the temperature of hot water, realizes the controllability and more optimal effect of hot water temperature's size adjustment.
Preferably, on the main circulation loop, it is positioned at the downstream of first condenser 2 or cold positioned at described second
The downstream of condenser 5 is additionally provided with regenerator 3, forms a heat exchange side of the regenerator 3, the downstream pipe of the evaporimeter 7
Through the regenerator 3, another heat exchange side of the formation regenerator 3.By arranging regenerator, first can reduce refrigerant
Condensation temperature, that is, be lowered into the temperature before evaporimeter, so as to the heat pump effect for effectively improving evaporation effect, improving whole system
Rate, second can also effectively improve the refrigerant temperature into compressor air suction end, prevent the refrigerant band liquid entered in compressor
So as to form the generation of the phenomenon of liquid hammer.
Preferably, on the main circulation loop, at the suction end of first compressor 1 be additionally provided with oil-gas-liquid
Separator 8, the oil gas liquid/gas separator 8 includes gas outlet end 81 and oil export end 82, and the gas outlet end 81 is connected to institute
The suction end of the first compressor 1 is stated, the oil export end 82 is connected in the oil sump of first compressor 1.By in the first pressure
Contracting machine suction end arranges the version of oil gas liquid/gas separator, can be to carrying out oil gas and gas-liquid into the refrigerant in compressor
Separate, prevent gas band oil and the band liquid entered in compressor air suction mouth, prevent liquid hammer, other need profit to also prevent compressor
Sliding position oil starvation the occurrence of.
Preferably, the refrigerant in the main circulation loop and in bypass branch 19 is CO2, in the auxiliary circulation loop
Refrigerant be R134a.This is the preferred kind of the refrigerant of the present invention, is by the refrigerant selection in main circulation loop and bypass branch
CO2, it is because that the environment that two loop is worked extremely is being trembled with fear under operating mode, CO2Refrigerant can produce high temperature under Trans-critical cycle operating mode
Hot water and relatively low viscosity is still kept at -40 DEG C, superior mobile performance and heat transfer property, it meets the requirements just, makes
Use CO2Enabling to the heat pump hot-water system of the present invention can be operated in normally and well under outdoor low temperature environment, and maintain
Heat absorption hot water preparing is to heat or heat；And auxiliary circulation loop due to its belong in cascade system similar to high-temperature level,
The temperature of its heat absorption environment (i.e. the second condenser) is comparatively higher, therefore just can ensure that its circulation using conventional refrigerant
Operating.
Make use of Trans-critical cycle CO2Higher energy efficiency ratio and the advantage for going out high-temperature-hot-water, and condense using in closed circuit
Set up the condenser of a low-temperature level, by the way of the phase overlapping of auxiliary circulation loop realize recirculated water inflow temperature in device downstream
Higher (>40 DEG C) and CO2Temperature is reduced to critical point (31 DEG C) below, takes full advantage of Trans-critical cycle CO2The advantage of heat pump
With CO2In the superior mobile performance of ultra low temperature and heat exchange property, ultra-low temperature air source heat pump heating demands are realized.
The operation principle and preferred embodiment of the present invention is described below
A kind of efficient R134a/CO with vortex tube water temp adjustable of the present invention2(Trans-critical cycle) heat pump, it includes CO2Pressure
Contracting machine 1, CO2Air cooler 2, regenerator 3, vortex tube 4, low temperature air cooled device 5, first throttle valve 6, evaporimeter 7, fluid gas separating device
The CO of 8 compositions2Heat pump, including R134a compressors 9, R134a condensers 10, second throttle 11,5 groups of low temperature air cooled device
Into R134a heat pumps, including vortex tube 4, heat exchanger 12, the 3rd choke valve 13, fluid gas separating device 8 composition vortex tube
Bypath system, including CO2Air cooler 2, R134a condensers 10, heat exchanger 12, regulating valve 14, the water route system of the composition of water mixing valve 15
System.
The CO2The gas outlet of the import of compressor 1 connection fluid gas separating device 8, the bottom of oil return opening connection fluid gas separating device 8
Portion's oil separating opening, outlet connection CO2The refrigerant inlet of air cooler 2；The CO2The side-entrance of air cooler 2 one connects CO2Compressor 1,
The outlet connection import of regenerator 3, another side-entrance connects running water, outlet connection water mixing valve 15；The side-entrance of the regenerator 3 one
Connection evaporimeter 7 is exported, the import of outlet connection fluid gas separating device 8, another side-entrance of regenerator 3 connection CO2Air cooler 2, goes out
Mouth connection vortex tube 4；The import of the vortex tube 4 is the gas of middle temperature, and the hot junction outlet connection import of heat exchanger 12, cold side outlet connects
Connect the side-entrance of low temperature air cooled device 5 one；The side-entrance of low temperature air cooled device 5 one connects the cold side outlet of vortex tube 4, outlet connection first
Choke valve 6, another side-entrance of the low temperature air cooled device 5 connection outlet connection R134a of second throttle 11 compressors 9；The first segment
The import of stream valve 6 connects low temperature air cooled device 5, outlet connection evaporimeter 7；The side JA(junction ambient) of the evaporimeter 7, another side-entrance connects
Connect first throttle valve 6, outlet connection regenerator 3；The side-entrance of the regenerator 3 one connection evaporimeter 7 is exported, outlet connection fluid
The import of gas separating device 8, another side-entrance of regenerator 3 connection CO2Air cooler 2, outlet connection vortex tube 4；The fluid gas is separated
The connection outlet of regenerator 3 of the air inlet of device 8 is exported with choke valve 13, the gas of the fluid gas separating device 8 outlet connection air-breathing of compressor 1
Mouthful, the oil export of the fluid gas separating device 8 connection oil return opening of compressor 1.
The exhaust outlet of the side-entrance of R134a condensers 10 1 connection R134a compressors 9, outlet connection second throttle 11,
Another side-entrance connects running water, outlet connection water mixing valve 15.
Patent of the present invention can be reachable -35 DEG C in -30 DEG C of operations of environment temperature, the local environment temperature of the evaporimeter 7；Overlapping
The R134a condensers 10 of high-temperature level can reach 60 DEG C of water inlets, 70 DEG C of water outlets；The CO2Air cooler 2 can reach 40 DEG C of water inlets, and 95
DEG C water outlet；The CO2 heat pumps be trans critical cycle, the CO2Heat pump contains vortex tube 4 and low temperature air cooled device 5, institute
Stating heat exchanger 12 can export CO by the hot junction of vortex tube 42Gas exchanges heat with running water, and the water for making higher temperature enters air cooler 2
Hot water main road, connects water mixing valve 15 then；The CO2Heat pump contains two air coolers, and low temperature air cooled device and R134a
Overlapping, the water mixing valve 13 can be mixed by 95 DEG C of water inlets, 70 DEG C of water inlets with running water water inlet, and user can be by adjusting different valves
Aperture reaches different water temperatures.
Such as in -30 DEG C of environment temperature, -35 DEG C of 7 evaporating temperature of the evaporimeter；The R134a condensations of overlapping high-temperature level
Device 10 can reach 40 DEG C of water inlets, 70 DEG C of water outlets；The CO2Air cooler 2 can reach 40 DEG C of water inlets, 95 DEG C of water outlets；The CO2Heat pump
System is trans critical cycle, and the import of the vortex tube 4 is high pressure, 50 DEG C of state, and (mass flow subtracts for 70 DEG C for hot junction outlet
It is little) exchanging heat into heat exchanger 12 and water makes the hot water main road of the water of higher temperature into air cooler 2, and water mixing valve 15 is connected then；
The CO2Heat pump contains two air coolers, and low temperature air cooled device and R134a overlappings, and the water mixing valve 13 can be by 95 DEG C
Water inlet, 70 DEG C of water inlets mix with running water water inlet, and user can reach different water temperatures by adjusting different valve openings.
The above is only the preferred embodiment of this patent, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this patent principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as the protection domain of this patent, such as the deleting of regenerator (3), replacement of choke valve etc., low temperature air cooled device overlapping end
R134a is not limited to, other high temperature cold-producing mediums are also within protection domain.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
On the premise of departing from the technology of the present invention principle, some improvement and modification can also be made, these are improved and modification also should be regarded as this
The protection domain of invention.
Claims (11)
1. heating heat pump under a kind of ultra-low temperature surroundings, it is characterised in that：Including by the first compressor (1), first cold
Condenser (2), the first expansion valve (6), evaporimeter (7) composition main circulation loop, first condenser (2) for the first water
Pipe (16) exchanges heat with hot water preparing or heating, wherein the pipe between first condenser (2) and first expansion valve (6)
The second condenser (5) is additionally provided with road, also includes being connected with the main circulation loop overlapping by second condenser (5)
Auxiliary circulation loop, the auxiliary circulation loop be used for exchanged heat with hot water preparing or supplied with the second water pipe (17)
It is warm.
2. heat pump according to claim 1, it is characterised in that：The auxiliary circulation loop includes the second compressor
(9), the second expansion valve (11), the 3rd condenser (10) and second condenser (5), second condenser (5) is used as institute
The evaporimeter in auxiliary circulation loop is stated, and the 3rd condenser (10) connects second water pipe (17) to change it
Heat.
3. the heat pump according to one of claim 1-2, it is characterised in that：In the main circulation loop, positioned at institute
State and vortex tube (4) is additionally provided between the first condenser (2) and second condenser (5), the import of the vortex tube (4) connects
To first condenser (2), first outlet is connected to second condenser (5), and second outlet is connected with can be used to produce heat
Water or the bypass branch of heating (19).
4. heat pump according to claim 3, it is characterised in that：The first outlet is low for the vortex tube (4)
Temperature outlet, the second outlet is the hot outlet of the vortex tube (4).
5. the heat pump according to one of claim 3-4, it is characterised in that：It is additionally provided with the bypass branch (19)
4th condenser (12), the 4th condenser (12) is connected with the 3rd water pipe (18) and is exchanged heat with the 3rd water pipe (18)
With hot water preparing or heating.
6. heat pump according to claim 5, it is characterised in that：The described 4th is located on the bypass branch (19) cold
The downstream of condenser (12) is additionally provided with the 3rd expansion valve (13), and the other end of the bypass branch (19) is linked back to the described first pressure
The suction end of contracting machine (1).
7. the heat pump according to one of claim 5-6, it is characterised in that：First water pipe (16), described second
Water pipe (17) and the 3rd water pipe (18) are connected to output water pipe (20) after converging, and in first water pipe (16), described
The regulating valve of control water route break-make is provided with least one of second water pipe (17), the 3rd water pipe (18).
8. heat pump according to claim 7, it is characterised in that：3rd water pipe (18) is connected to first water
Manage (16), and first water pipe (16) and second water pipe (17) carry out water route and converge by water mixing valve (15), it is described mixed
The output end of water valve (15) is connected to output water pipe (20), and the water mixing valve (15) also includes what is be connected with running water
Water inlet pipe (21).
9. the heat pump according to one of claim 1-8, it is characterised in that：On the main circulation loop, positioned at institute
State the downstream of the first condenser (2) or be additionally provided with regenerator (3) positioned at the downstream of second condenser (5), formed
One heat exchange side of the regenerator (3), the downstream pipe of the evaporimeter (7) is through the regenerator (3), the formation backheat
Another heat exchange side of device (3).
10. the heat pump according to one of claim 1-9, it is characterised in that：On the main circulation loop, positioned at institute
Oil gas liquid/gas separator (8) is additionally provided with the suction end for stating the first compressor (1), the oil gas liquid/gas separator (8) is including gas
The port of export (81) and oil export end (82), the gas outlet end (81) is connected to the suction end of first compressor (1), described
Oil export end (82) is connected in the oil sump of first compressor (1).
11. heat pumps according to one of claim 1-10, it is characterised in that：In the main circulation loop and bypass
Refrigerant in branch road (19) is CO2, the refrigerant in the auxiliary circulation loop is R134a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611203961.8A CN106642808A (en) | 2016-12-23 | 2016-12-23 | Heating heat pump system used in ultralow-temperature environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203961.8A CN106642808A (en) | 2016-12-23 | 2016-12-23 | Heating heat pump system used in ultralow-temperature environment |
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| Publication Number | Publication Date |
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| CN106642808A true CN106642808A (en) | 2017-05-10 |
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ID=58827766
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611203961.8A Pending CN106642808A (en) | 2016-12-23 | 2016-12-23 | Heating heat pump system used in ultralow-temperature environment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773258A (en) * | 2018-08-10 | 2018-11-09 | 大连民族大学 | Electric vehicle heating system based on vortex tube |
| CN109059279A (en) * | 2017-06-13 | 2018-12-21 | 上海海立电器有限公司 | Compressor heat pumping system with double water temperature |
| CN109323477A (en) * | 2018-09-11 | 2019-02-12 | 西安交通大学 | It is a kind of based on the Trans-critical cycle CO with forecooler2Heat pump system and its water route two-way valve control method |
| CN110920646A (en) * | 2019-12-23 | 2020-03-27 | 甘肃一德新能源设备有限公司 | Sterilization carbon dioxide heat pump locomotive air-conditioning heat unit |
| CN111750419A (en) * | 2020-07-29 | 2020-10-09 | 青岛达能环保设备股份有限公司 | Domestic hot water supply system based on solar energy and trans-critical carbon dioxide heat pump |
| CN112665205A (en) * | 2020-12-22 | 2021-04-16 | 上海海事大学 | Nested double-overlapping cold-hot combined supply system |
| CN114739072A (en) * | 2022-04-13 | 2022-07-12 | 天津大学 | Ice rink refrigerating system |
| CN114739071A (en) * | 2022-04-13 | 2022-07-12 | 天津大学 | Ice rink refrigeration plant and system |
| CN115031445A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Air source heat pump high-temperature heating device and operation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862151A (en) * | 2005-05-12 | 2006-11-15 | 乐金电子(天津)电器有限公司 | Air conditioner for regenerative cooling circulation system |
| CN101922801A (en) * | 2010-09-27 | 2010-12-22 | 江苏天舒电器有限公司 | Parallel-flow two-stage condensation heat pump water heater |
| CN202885327U (en) * | 2012-10-23 | 2013-04-17 | 天津新源天大热泵技术有限公司 | Overlap type heat pump system |
| CN104949390A (en) * | 2015-06-25 | 2015-09-30 | 西安交通大学 | Transcritical CO2 heat pump system for heating radiator heating |
| CN205037565U (en) * | 2015-10-21 | 2016-02-17 | 浙江佳力科技股份有限公司 | Realize high return water temperature and different critical CO2 heat pump system that strides who heats operating mode requirement |
| CN206320956U (en) * | 2016-12-23 | 2017-07-11 | 燕园德普科技（北京）有限公司 | Heating heat pump under a kind of ultra-low temperature surroundings |
-
2016
- 2016-12-23 CN CN201611203961.8A patent/CN106642808A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862151A (en) * | 2005-05-12 | 2006-11-15 | 乐金电子(天津)电器有限公司 | Air conditioner for regenerative cooling circulation system |
| CN101922801A (en) * | 2010-09-27 | 2010-12-22 | 江苏天舒电器有限公司 | Parallel-flow two-stage condensation heat pump water heater |
| CN202885327U (en) * | 2012-10-23 | 2013-04-17 | 天津新源天大热泵技术有限公司 | Overlap type heat pump system |
| CN104949390A (en) * | 2015-06-25 | 2015-09-30 | 西安交通大学 | Transcritical CO2 heat pump system for heating radiator heating |
| CN205037565U (en) * | 2015-10-21 | 2016-02-17 | 浙江佳力科技股份有限公司 | Realize high return water temperature and different critical CO2 heat pump system that strides who heats operating mode requirement |
| CN206320956U (en) * | 2016-12-23 | 2017-07-11 | 燕园德普科技（北京）有限公司 | Heating heat pump under a kind of ultra-low temperature surroundings |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059279A (en) * | 2017-06-13 | 2018-12-21 | 上海海立电器有限公司 | Compressor heat pumping system with double water temperature |
| CN108773258A (en) * | 2018-08-10 | 2018-11-09 | 大连民族大学 | Electric vehicle heating system based on vortex tube |
| CN109323477A (en) * | 2018-09-11 | 2019-02-12 | 西安交通大学 | It is a kind of based on the Trans-critical cycle CO with forecooler2Heat pump system and its water route two-way valve control method |
| US11927379B2 (en) | 2018-09-11 | 2024-03-12 | Xi'an Jiaotong University | Precooler-based transcritical CO2 heat pump system and control method of waterway two-way valve thereof |
| CN110920646A (en) * | 2019-12-23 | 2020-03-27 | 甘肃一德新能源设备有限公司 | Sterilization carbon dioxide heat pump locomotive air-conditioning heat unit |
| CN111750419A (en) * | 2020-07-29 | 2020-10-09 | 青岛达能环保设备股份有限公司 | Domestic hot water supply system based on solar energy and trans-critical carbon dioxide heat pump |
| CN112665205A (en) * | 2020-12-22 | 2021-04-16 | 上海海事大学 | Nested double-overlapping cold-hot combined supply system |
| CN114739072A (en) * | 2022-04-13 | 2022-07-12 | 天津大学 | Ice rink refrigerating system |
| CN114739071A (en) * | 2022-04-13 | 2022-07-12 | 天津大学 | Ice rink refrigeration plant and system |
| CN115031445A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Air source heat pump high-temperature heating device and operation method thereof |
| CN115031445B (en) * | 2022-06-16 | 2023-12-05 | 江苏省华扬太阳能有限公司 | High-temperature heating device of air source heat pump and operation method thereof |
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Application publication date: 20170510 |