CN106546039A - Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear - Google Patents
Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear Download PDFInfo
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- CN106546039A CN106546039A CN201710067327.4A CN201710067327A CN106546039A CN 106546039 A CN106546039 A CN 106546039A CN 201710067327 A CN201710067327 A CN 201710067327A CN 106546039 A CN106546039 A CN 106546039A
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- Prior art keywords
- valve
- vaporizer
- heat
- throttling device
- carbon dioxide
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 29
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 29
- 206010044565 Tremor Diseases 0.000 title claims abstract description 22
- 239000006200 vaporizer Substances 0.000 claims abstract description 58
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005520 electrodynamics Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 24
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 229960004424 carbon dioxide Drugs 0.000 description 21
- 230000000694 effects Effects 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000001077 hypotensive effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- F25B41/37—Capillary tubes
-
- 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
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
-
- 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
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to energy-saving heating technical field, more particularly to it is a kind of suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear.The second end that expansion throttling device includes the first end being connected for the outfan with condenser and is connected for the input with vaporizer；Multiple reducers are connected with turn between the first end and second end；It is connected with the first end by valve between the two neighboring reducer.Heat pump includes that head and the tail are sequentially connected logical compressor, condenser, throttle part and vaporizer, and the throttle part is above-mentioned expansion throttling device.It is an object of the invention to provide it is a kind of suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear, to solve the technical problem that expansion throttling device present in prior art can not realize the regulation in big temperature range to the degree of reducing pressure by regulating flow.
Description
Technical field
The present invention relates to energy-saving heating technical field, more particularly, to a kind of suitable for the carbon dioxide heat under weather of extremely trembling with fear
Pump expansion throttling device and heat pump.
Background technology
Existing air source heat pump is mainly made up of parts such as compressor, condenser, throttling arrangement, vaporizers, is being prepared
When hot water or heating, the part such as compressor, vaporizer and throttling arrangement is typically mounted at outdoor, is directly absorbed by vaporizer
The heat of outdoor air, the entering air temperature of evaporator with heat pump side are the temperature of outdoor local environment.As outdoor climate exists
Change very big in 1 year, complicate the regulating working conditions of heat pump, when particularly cold in the winter time, into entering for evaporator with heat pump side
The temperature of mouth air is relatively low, influences whether the efficiency of heat pump, for the problems referred to above, by the input port of vaporizer and condenser
Delivery outlet between expansion throttling device is set, to reduce the pressure of the cold-producing medium into vaporizer, consequently facilitating cold-producing medium steam
Heat absorption is sent out, so as to realize system stable operation.
It is shown in Figure 1, the structural representation of the expansion throttling device that Fig. 1 is provided for prior art；Prior art it is swollen
Swollen throttling arrangement includes mutually the tie point and the second branch road of connection side by side, and wherein tie point includes being sequentially connected first for connecing
Capillary tube 12 ' and the first valve 11 ', the second branch road include being sequentially connected the second capillary tube 22 ' and the second valve 21 ' for connecing, and
The length of the first capillary tube is longer than the length of the second capillary tube.Summer high-temperature season, the second valve closure, the first valve disconnect,
The second shorter capillary tube is the cold-producing medium reducing pressure by regulating flow into vaporizer；Winter low temperature season, the first valve closure, the second valve
Door disconnects, and the first longer capillary tube is the cold-producing medium reducing pressure by regulating flow into vaporizer.
But, as the length of the first capillary tube and the second capillary tube is to fix immutable, above-mentioned expansion throttling device
The degree of reducing pressure by regulating flow can only be adjusted according to summer or winter, it is impossible to which the degree of reducing pressure by regulating flow is realized in big temperature range
Regulation so that heat pump still there are system inefficiencies and energy-saving effect is inapparent.
Therefore, the application provides a kind of carbon dioxide heat-pump expansion throttling suitable for extremely trembling with fear under weather for the problems referred to above
Device and heat pump.
The content of the invention
It is an object of the invention to provide a kind of carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather, with
Solve expansion throttling device present in prior art and the regulation in big temperature range can not be realized to the degree of reducing pressure by regulating flow
Technical problem.
The present invention also aims to a kind of heat pump is provided, further to solve heat pump present in prior art
Expansion throttling device can not realize the technical problem of the regulation in big temperature range to the degree of reducing pressure by regulating flow.
Based on above-mentioned first purpose, the present invention provides a kind of carbon dioxide heat-pump expansion throttling suitable for extremely trembling with fear under weather
Device, the second end being connected including the first end being connected for the outfan with condenser and for the input with vaporizer；
Multiple reducers are connected with turn between the first end and second end；
It is connected with the first end by valve between the two neighboring reducer.
Further, the present invention from the first end to second end, the reducer successively include first throttle device,
Second choke and the 3rd reducer；
It is connected with the first end by the first valve between the first throttle device and the second choke, described
It is connected with the first end by the second valve between two reducers and the 3rd reducer.
Further, reducer of the present invention is capillary tube.
Further, the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather of the present invention, also wraps
The temperature sensor for including controller and electrically connecting with the controller；
First valve is electrodynamic valve with second valve, and is electrically connected with the controller；
The temperature sensor is used for the temperature for monitoring vaporizer place environment, and sends to the controller, the control
Device correspondence processed controls the keying of first valve and second valve.
Further, the first valve of the present invention and second valve are normally opened valve.
Based on above-mentioned second purpose, the present invention provides a kind of heat pump, including head and the tail are sequentially connected logical compressor, condensation
Device, throttle part and vaporizer, the throttle part are above-mentioned suitable for the carbon dioxide heat-pump expansion joint under extremely cold weather
Stream device；
The first end is connected with the outfan of the condenser；Second end is connected with the input of the vaporizer
Connect.
Further, heat pump of the present invention, also including cross valve；
The input port of cross valve connection compressor, the delivery outlet of compressor, the delivery outlet of the vaporizer and described
The input port of condenser；
The 3rd valve is provided between the condenser and the first end；Set between second end and the vaporizer
It is equipped with the 4th valve；
The 5th valve is provided between the vaporizer and the first end；Set between second end and the condenser
It is equipped with the 6th valve.
Further, the 3rd valve of the present invention, the 4th valve, the 5th valve and the 6th valve are equal
For check valve.
Further, between vaporizer of the present invention and the compressor, the condenser is filled with the expansion throttling
Regenerator is provided between putting.
Further, heat pump of the present invention, also including gas-liquid separator；
The gas-liquid separator is arranged between the vaporizer and the compressor.
In sum, the present invention provide suitable for the carbon dioxide heat-pump expansion throttling device extremely trembled with fear under weather due to the
Be connected with multiple reducers between one end and the second end in turn, it is possible to achieve one, two, three or more reducers altogether
Same-action, realizes to the regulation in the big temperature range into the degree of the cold-producing medium reducing pressure by regulating flow of vaporizer, so that
Heat pump has the higher thermal efficiency and energy-saving effect is significantly, solves expansion throttling device present in prior art not
The technical problem of the regulation in big temperature range can be realized to the degree of cold-producing medium reducing pressure by regulating flow.
The heat pump that the present invention is provided includes the above-mentioned carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather,
The expansion throttling device for solving heat pump present in prior art can not realize big temperature to the degree of cold-producing medium reducing pressure by regulating flow
In the range of regulation technical problem.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by to be used attached needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation of the expansion throttling device that Fig. 1 is provided for prior art；
Fig. 2 is the knot of the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 3 is the structural representation of the first structure of heat pump provided in an embodiment of the present invention；
Fig. 4 is the structural representation of the second structure of heat pump provided in an embodiment of the present invention.
Icon：11 '-the first valves；12 '-the first capillary tubies；21 '-the second valves；22 '-the second capillary tubies；11- first
End；The second ends of 12-；21- first throttle devices；22- second choke；The 3rd reducers of 23-；The first valves of 31-；The second valves of 32-
Door；41- compressors；42- condensers；43- vaporizers；5- cross valves；The 3rd valves of 61-；The 4th valves of 62-；The 5th valves of 63-
Door；The 6th valves of 64-；7- regenerators；8- gas-liquid separators.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The structural representation of the expansion throttling device that Fig. 1 is provided for prior art；Fig. 2 is provided in an embodiment of the present invention suitable
For the structural representation of the carbon dioxide heat-pump expansion throttling device under weather of extremely trembling with fear；Fig. 3 is provided in an embodiment of the present invention
The structural representation of the first structure of heat pump；Fig. 4 is the structural representation of the second structure of heat pump provided in an embodiment of the present invention.
Embodiment one
Referring to shown in Fig. 2-Fig. 4, the present embodiment provides a kind of carbon dioxide heat-pump expansion joint suitable for extremely trembling with fear under weather
Stream device, second be connected including the first end 11 being connected for the outfan with condenser and for the input with vaporizer
End 12；
Multiple reducers are connected with turn between the first end 11 and second end 12；
It is connected with the first end 11 by valve between the two neighboring reducer.
The expansion throttling device that prior art is provided can only be divided to two gears to adjust to refrigeration according to summer or winter
The degree of the reducing pressure by regulating flow of agent, it is impossible to the regulation in big temperature range is realized to the degree of reducing pressure by regulating flow so that heat pump is still deposited
In system inefficiencies and the inapparent problem of energy-saving effect.
The present embodiment provide suitable for extremely tremble with fear weather under carbon dioxide heat-pump expansion throttling device due to first end 11
And second be connected with multiple reducers between end 12 in turn, reducer can for example be two, three, four etc., it is preferable that section
The number of stream device is more than or equal to three, therefore can realize one, two, three or more reducer collective effects, real
Show to the regulation in the big temperature range into the degree of the cold-producing medium reducing pressure by regulating flow of vaporizer, so that heat pump tool
There is the higher thermal efficiency and energy-saving effect is significantly, solving expansion throttling device present in prior art can not be to cold-producing medium
Reducing pressure by regulating flow degree realize the technical problem of the regulation in big temperature range.
Alternatively, shown in Figure 2, the reducer has three, from the first end 11 to second end 12, described
Reducer includes first throttle device 21, second choke 22 and the 3rd reducer 23 successively；
Connected with the first end 11 by the first valve 31 between the first throttle device 21 and the second choke 22
Connect, be connected with the first end 11 by the second valve 32 between the second choke 22 and the 3rd reducer 23.
It should be noted that higher to the reducing pressure by regulating flow degree of the cold-producing medium into vaporizer, the pressure of cold-producing medium is lower,
The easier evaporation of cold-producing medium, so as to the heat in absorption air is more, the heat absorption efficiency of heat pump is higher.
Specifically, when the first valve 31 and the second valve 32 all disconnect, can only be according to through the cold-producing medium of condenser condensation
It is secondary by first throttle device 21, second choke 22 and the 3rd reducer 23 and then to enter vaporizer, therefore, now cold-producing medium Jing
The reducing pressure by regulating flow effect of three reducers is crossed.
When the first valve 31 and the second valve 32 are all closed, preferentially pass through the second valve through the cold-producing medium of condenser condensation
32, and then vaporizer is directly entered after the 3rd reducer 23, therefore, now cold-producing medium only have passed through the section of a reducer
Stream hypotensive effect.
When the first valve 31 is closed, and the second valve 32 disconnects, and preferentially passes through first by the cold-producing medium that condenser is condensed
Valve 31, and then after sequentially passing through second choke 22 and the 3rd reducer 23, into vaporizer, therefore, now cold-producing medium Jing
The reducing pressure by regulating flow effect of two reducers is crossed.
Alternatively, shown in Figure 2, the reducer is capillary tube.
Reducer can also be expansion valve, it is preferable that when reducer is expansion valve, check valve is connected with expansion valve；It is excellent
Selection of land, reducer is capillary tube, capillary tube blood pressure lowering Throttle Principle：From the highly pressurised liquid of condenser output, receive when capillary tube
Certain resistance was obtained, at capillary outlet end, is spread from capillary tube liquid out rapidly, is become low pressure liquid, reached section
Stream hypotensive effect.Capillary tube as a kind of conventional restricting element, be simple to manufacture, cost it is cheap.
Preferably, described expansion throttling device also includes controller and the temperature sensing electrically connected with the controller
Device；
First valve 31 is electrodynamic valve with second valve 32, and is electrically connected with the controller；Such as
One valve 31 can be electromagnetic valve with second valve 32.
The temperature sensor is used for the temperature for monitoring vaporizer place environment, and sends to the controller, the control
Device correspondence processed controls the keying of first valve 31 and second valve 32.
When the temperature of temperature sensor monitors to vaporizer place environment is less than default first temperature, controller correspondence
Control the first valve 31 and the second valve 32 all disconnects, the cold-producing medium condensed by condenser can only pass sequentially through first throttle device
21st, second choke 22 and the 3rd reducer 23 further enter vaporizer, therefore, now cold-producing medium have passed through three reducers
Reducing pressure by regulating flow is acted on.
When the temperature of temperature sensor monitors to vaporizer place environment is higher than default second temperature, controller correspondence
Control the first valve 31 and the second valve 32 is all closed, preferentially pass through the second valve 32 through the cold-producing medium of condenser condensation, enter
And vaporizer is directly entered after the 3rd reducer 23, therefore, now cold-producing medium only have passed through the throttling drop of a reducer
Pressure is acted on.
When the temperature of temperature sensor monitors to vaporizer place environment be in default first temperature and second temperature it
Between when, controller correspondence the first valve 31 of control is closed, and the second valve 32 disconnects, and the cold-producing medium condensed by condenser is preferential
By the first valve 31, and then after sequentially passing through second choke 22 and the 3rd reducer 23, into vaporizer, therefore, now
Cold-producing medium have passed through the reducing pressure by regulating flow effect of two reducers.
Wherein, the first temperature is less than second temperature, and the first temperature is default minimum critical temperature, and second temperature is default
Highest critical temperature.
Temperature range is divided into three gears by the present embodiment：Less than between the first temperature, the first temperature and second temperature, it is big
In second temperature, the first temperature may range from -5 DEG C～5 DEG C, for example：- 5 DEG C, -3 DEG C, -1 DEG C, 1 DEG C, 3 DEG C or 5 DEG C
15～25 DEG C be may range from Deng, second temperature, such as 15 DEG C, 17 DEG C, 19 DEG C, 21 DEG C, 23 DEG C or 25 DEG C etc..
That is, with the change of ambient temperature, expansion throttling device passes through the opening and closing for controlling multiple electrodynamic valves, so as to
The quantity of reducer in control loop, whole system can be stablized, safe and efficient operation.
In sum, the temperature of vaporizer place environment is less than default first temperature, and cold-producing medium passes sequentially through first segment
Flow device 21, second choke 22 and the 3rd reducer 23 and then enter vaporizer, thus drop of the expansion throttling device to cold-producing medium
Pressure throttling action is most strong so that under extremely cold weather, cold-producing medium can also be evaporated, and so as to the heat in absorption air, make
Heat pump can also stablize in extremely cold environment, the operation of safety；When the temperature of vaporizer place environment is higher than default second
During temperature, as outdoor temperature is than conveniently, the efficiency of heat pump is higher, and cold-producing medium only have passed through the reducing pressure by regulating flow of a reducer
Effect, just can enable heat pump steady operation.When the temperature of vaporizer place environment be in the first temperature and second temperature it
Between when, cold-producing medium have passed through two reducers reducing pressure by regulating flow effect, to realize that heat pump being capable of steady operation.
In the same manner, under extremely cold environment, in order that heat pump can stable operation and do not affected by low temperature adverse circumstances, can
To increase the number of reducer, corresponding, valve number also increases, and default critical temperature number also increases.
In sum, the reducing pressure by regulating flow degree that expansion throttling device can be according to the change regulation of temperature to cold-producing medium, makes
Heat pump can high-efficiency operation all the time, and automatically adjusting in big temperature range can be realized, not by the shadow of external environment
Ring, can stablize, the operation of safety, and energy-saving effect is notable.
Preferably, first valve 31 and second valve 32 are normal closed gate so as to the first valve 31 and the
The more convenient operation of two valves 32.
Embodiment two
Embodiment two provide a kind of heat pump, the heat pump include described in embodiment one suitable for extremely tremble with fear weather under two
Carbonoxide heat pump expansion throttling device, disclosed in embodiment one suitable for the carbon dioxide heat-pump expansion throttling extremely trembled with fear under weather
The technical characteristic of device is also applied for the embodiment, the published carbon dioxide heat-pump suitable for extremely trembling with fear under weather of embodiment one
The technical characteristic of expansion throttling device is not repeated description.Below in conjunction with the accompanying drawings the embodiment of the heat pump is carried out further
Detailed description.
To save length, the improvement feature of the embodiment is equally embodied in Fig. 2-Fig. 4, therefore, with reference to Fig. 2-Fig. 4 to this
The scheme of embodiment is illustrated.
Referring to shown in Fig. 2-Fig. 4, the heat pump that the present embodiment is provided, including head and the tail are sequentially connected logical compressor 41, condensation
Device 42, throttle part and vaporizer 43, the throttle part are above-mentioned swollen suitable for the carbon dioxide heat-pump extremely trembled with fear under weather
Swollen throttling arrangement；
The first end 11 is connected with the outfan of the condenser 42；Second end 12 is defeated with the vaporizer 43
Enter end connection.
The expansion throttling device of the heat pump that the present embodiment is provided is multiple due to being connected with turn between first end and the second end
Reducer, reducer can for example be two, three, four etc., it is preferable that the number of reducer is more than or equal to three；Therefore
One, two, three or more reducer collective effects can be realized, is realized to the cold-producing medium section into vaporizer 43
Regulation in the big temperature range of the degree of stream blood pressure lowering, so that heat pump has the higher thermal efficiency and energy-saving effect
Significantly, the expansion throttling device for solving heat pump present in prior art can not be realized greatly to the degree of cold-producing medium reducing pressure by regulating flow
The technical problem of the regulation in temperature range.
Preferably, referring to shown in Fig. 3 and Fig. 4, the heat pump described in the present embodiment, also including cross valve 5；
The connection of the cross valve 5 input port of compressor, the delivery outlet of compressor, the delivery outlet of the vaporizer and described
The input port of condenser；
The 3rd valve 61 is provided between the condenser 42 and the first end；Second end and the vaporizer 43
Between be provided with the 4th valve 62；
The 5th valve 63 is provided between the vaporizer 43 and the first end；Second end and the condenser 42
Between be provided with the 6th valve 64.
Cross valve 5 allows heat pump to change refrigeration mode and heating mode；Specifically, when heating so that cross valve
The delivery outlet of compressor is connected with the input port of condenser, the delivery outlet of vaporizer is connected with the input port of compressor, and the
Three valves 61 and the 4th valve 62 are closed, and the 5th valve 63 and the 6th valve 64 disconnect.Cold-producing medium sequentially passes through compressor 41, cold
Condenser 42, the 3rd valve, expansion throttling device, the 4th valve, vaporizer 43 further return to compressor 41；During refrigeration so that four
The delivery outlet of compressor is connected by port valve with the delivery outlet of vaporizer, and the input port of condenser is connected with the input port of compressor,
And the 3rd valve 61 and the 4th valve 62 disconnect, the 5th valve 63 and the 6th valve 64 are closed.Cold-producing medium sequentially passes through compressor
41st, vaporizer 43, the 5th valve, expansion throttling device, the 6th valve, condenser 42 further return to compressor 41.
Preferably, the 3rd valve, the 4th valve, the 5th valve and the 6th valve are electrodynamic valve, and all electric with controller
Connection.
Preferably, the 3rd valve, the 4th valve, the 5th valve and the 6th valve are unidirectionally
Valve.
Wherein, it is from condenser 42 to first end by the flow direction of the cold-producing medium of the 3rd valve；By the 4th valve
The flow direction of cold-producing medium be from the second end to vaporizer 43；Flow direction by the cold-producing medium of the 5th valve is from evaporation
Device 43 arrives first end；Flow direction by the cold-producing medium of the 6th valve is from the second end to condenser 42, so that heat pump energy
Enough normal operations.
Preferably, it is shown in Figure 4, between the vaporizer 43 and the compressor 41, the condenser 42 with it is described
Regenerator 7 is provided between expansion throttling device.
Make 42 condensed cold-producing medium of condenser first pass through regenerator 7 and remove expansion throttling device, the heat absorption vapour of vaporizer 43 again
The refrigerant vapour of change first passes through regenerator 7 and removes compressor 41 again, so as to reach supercool overheated purpose.
Preferably, heat pump shown in Figure 4, described in the present embodiment, also including gas-liquid separator 8；
The gas-liquid separator 8 is arranged between the vaporizer 43 and the compressor 41.
The gas phase and liquid phase separation of cold-producing medium its objective is to ensure to enter liquid in compressor by gas-liquid separator 8
Cold-producing medium, prevents compressor 41 from causing to damage because of liquid hammer.
It should be noted that the present embodiment provide heat pump cold-producing medium can for freon, carbon dioxide or other
Available cold-producing medium, it is preferable that cold-producing medium is carbon dioxide, carbon dioxide will not damage the ozone layer as cold-producing medium, and easily
Obtain, reduce cost.
Heat pump described in the present embodiment has the carbon dioxide heat-pump expansion being applied to described in embodiment one under extremely cold weather
The advantage of throttling arrangement, the advantage are described in detail in embodiment one, and here is not repeated.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. it is a kind of suitable for extremely tremble with fear weather under carbon dioxide heat-pump expansion throttling device, it is characterised in that include for it is cold
The first end of the outfan connection of condenser and the second end being connected for the input with vaporizer；
Multiple reducers are connected with turn between the first end and second end；
It is connected with the first end by valve between the two neighboring reducer.
2. the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather according to claim 1, its feature exists
In from the first end to second end, the reducer includes first throttle device, second choke and the 3rd throttling successively
Device；
It is connected with the first end by the first valve between the first throttle device and the second choke, the second section
It is connected with the first end by the second valve between stream device and the 3rd reducer.
3. the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather according to claim 1, its feature exists
In the reducer is capillary tube.
4. the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather according to claim 2, its feature exists
In the temperature sensor for also electrically connecting including controller and with the controller；
First valve is electrodynamic valve with second valve, and is electrically connected with the controller；
The temperature sensor is used for the temperature for monitoring vaporizer place environment, and sends to the controller, the controller
Correspondence controls the keying of first valve and second valve.
5. the carbon dioxide heat-pump expansion throttling device suitable for extremely trembling with fear under weather according to claim 4, its feature exists
In, first valve and second valve be normally opened valve.
6. a kind of heat pump, including head and the tail is sequentially connected logical compressor, condenser, throttle part and vaporizer, it is characterised in that
The throttle part is suitable for the carbon dioxide heat-pump expansion throttling dress under weather of extremely trembling with fear described in any one of claim 1-5
Put；
The first end is connected with the outfan of the condenser；Second end is connected with the input of the vaporizer.
7. heat pump according to claim 6, it is characterised in that also including cross valve；
The cross valve connects input port, the delivery outlet of compressor, the delivery outlet of the vaporizer and the condensation of compressor
The input port of device；
The 3rd valve is provided between the condenser and the first end；It is provided between second end and the vaporizer
4th valve；
The 5th valve is provided between the vaporizer and the first end；It is provided between second end and the condenser
6th valve.
8. heat pump according to claim 7, it is characterised in that the 3rd valve, the 4th valve, the 5th valve
Door and the 6th valve are check valve.
9. heat pump according to claim 6, it is characterised in that between the vaporizer and the compressor, the condensation
Regenerator is provided between device and the expansion throttling device.
10. heat pump according to claim 6, it is characterised in that also including gas-liquid separator；
The gas-liquid separator is arranged between the vaporizer and the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067327.4A CN106546039A (en) | 2017-02-06 | 2017-02-06 | Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067327.4A CN106546039A (en) | 2017-02-06 | 2017-02-06 | Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear |
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| Publication Number | Publication Date |
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| CN106546039A true CN106546039A (en) | 2017-03-29 |
Family
ID=58398622
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067327.4A Pending CN106546039A (en) | 2017-02-06 | 2017-02-06 | Suitable for the carbon dioxide heat-pump expansion throttling device and heat pump under weather of extremely trembling with fear |
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| CN (1) | CN106546039A (en) |
Cited By (1)
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Application publication date: 20170329 |