CN205641654U - Cascade refrigeration circulation system and have its refrigerating plant - Google Patents
Cascade refrigeration circulation system and have its refrigerating plant Download PDFInfo
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- CN205641654U CN205641654U CN201620423520.8U CN201620423520U CN205641654U CN 205641654 U CN205641654 U CN 205641654U CN 201620423520 U CN201620423520 U CN 201620423520U CN 205641654 U CN205641654 U CN 205641654U
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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
- 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
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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
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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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0011—Ejectors with the cooled primary flow at reduced or low pressure
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a cascade refrigeration circulation system and the refrigerating plant who has it, cascade refrigeration circulation system includes: including one -level cooling cycle system and second grade cooling cycle system, one -level cooling cycle system includes consecutive single -stage -compression machine, one -level condenser, one -level throttling arrangement, supplementary evaporimeter and sprayer, second grade cooling cycle system includes consecutive second grade throttling arrangement, dual evaporation ware and split -compressor, and middle heat exchanger of one -level cooling cycle system and the sharing of second grade cooling cycle system, middle heat exchanger include evaporation zone and condensation segment, and the sprayer has first import, second import and first export, and first import links to each other with the export of supplementary evaporimeter, and the second import links to each other with one -level throttling arrangement's export, and first export links to each other with the entry of evaporation zone. According to the utility model discloses a cascade refrigeration circulation system has improved heat exchange efficiency, has saved the energy effectively, has reached energy -concerving and environment -protective purpose.
Description
Technical field
This utility model relates to refrigeration technology field, especially relates to a kind of overlapping refrigerating cycle system and has its system
Device for cooling.
Background technology
In correlation technique, overlapping refrigerating cycle system is by high temperature section cooling cycle system and low-temperature zone cooling cycle system
Two single cooling cycle system compositions, high temperature section cooling cycle system uses high boiling cold-producing medium, low-temperature zone system
SAPMAC method system uses lower boiling cold-producing medium, the cold that the evaporation of high temperature section cold-producing medium produces to be used for compensating low-temperature zone refrigeration
Cold needed for agent condensation, the cryogenic temperature that final acquisition is relatively low.But, in refrigerative circle system, some
Irreversible work wastes, and does not reaches the requirement of energy-conserving and environment-protective.
Utility model content
This utility model is intended at least to solve one of technical problem present in prior art.To this end, of the present utility model one
It is high that individual purpose is to propose overlapping refrigerating cycle system, these overlapping refrigerating cycle system energy-conserving and environment-protective and reliability.
Another purpose of the present utility model is, it is proposed that a kind of refrigeration dress with above-mentioned overlapping refrigerating cycle system
Put.
According to the overlapping refrigerating cycle system of this utility model first aspect, including: one-level cooling cycle system, described
One-level cooling cycle system includes that the stage compressor being sequentially connected, first-stage condenser, a nuclear one-stage throttling device, auxiliary are steamed
Send out device and ejector；Two-stage system SAPMAC method system, described two-stage system SAPMAC method system includes the two-step throttle being sequentially connected
Device, secondary evaporimeter and split-compressor, described one-level cooling cycle system is with described two-stage system SAPMAC method system altogether
With an Intermediate Heat Exchanger, described Intermediate Heat Exchanger includes that evaporator section and condensation segment, described evaporator section are connected to described auxiliary
Helping between vaporizer and described stage compressor, described condensation segment is connected to described two-step throttle device and described two grades of pressures
Between contracting machine, wherein said ejector has the first import, the second import and the first outlet, described first import and institute
The outlet stating auxiliary evaporator is connected, and described second import is connected with the outlet of a described nuclear one-stage throttling device, and described first
Outlet is connected with the entrance of described evaporator section.
According to overlapping refrigerating cycle system of the present utility model, by arranging ejector in one-level cooling cycle system,
Reclaim part irreversible work, be effectively improved the temperature of the cold-producing medium of the evaporator section entering Intermediate Heat Exchanger, improved
The heat exchange efficiency of overlapping refrigerating cycle system, has been effectively saved the energy, has reduced overlapping refrigerating cycle system
Energy consumption, reached the purpose of energy-conserving and environment-protective.
It addition, according to overlapping refrigerating cycle system of the present utility model, it is also possible to have a following additional technical characteristic:
According to embodiments more of the present utility model, described one-level kind of refrigeration cycle also includes bypass pipe, described bypass pipe
First end is connected with the outlet of a described nuclear one-stage throttling device, and the second end of described bypass pipe is connected with described second import.
Further, described one-level cooling cycle system also includes that the first on-off valve, described first on-off valve are located at described auxiliary
Help on the pipeline between the entrance of vaporizer and the first end of described bypass pipe.
According to embodiments more of the present utility model, described one-level cooling cycle system also includes the second on-off valve, described
Two on-off valves are located on described bypass pipe.
According to embodiments more of the present utility model, described one-level cooling cycle system also includes three-way valve, described three-way valve
The first valve port be connected with the outlet of a described nuclear one-stage throttling device, the second valve port of described three-way valve and described assisted evaporative
The entrance of device is connected, and the 3rd valve port of described three-way valve is connected with the first end of described bypass pipe.
According to the refrigerating plant of this utility model second aspect, including the superposition type according to the above-mentioned first aspect of this utility model
Cooling cycle system.
According to embodiments more of the present utility model, described refrigerating plant is refrigerator air-conditioning fan all-in-one.
Specifically, described refrigerator air-conditioning fan all-in-one includes: housing；Air cooler portion, described auxiliary evaporator is located at described
In air cooler portion；With refrigerator portion, described refrigerator portion is setting up and down with described air cooler portion, and described secondary evaporimeter is located at
In described refrigerator portion.
Alternatively, described stage compressor and described split-compressor are each provided at the bottom of refrigerator air-conditioning fan all-in-one.
According to other embodiments of the present utility model, described refrigerating plant is refrigerator.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will from the following description
Become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining the accompanying drawings below description to embodiment and will become
Obtain substantially with easy to understand, wherein:
Fig. 1 is the system flow chart of the overlapping refrigerating cycle system according to this utility model embodiment；
Fig. 2 is the structural representation of the ejector shown in Fig. 1；
Fig. 3 is the structural representation of the refrigerator air-conditioning fan all-in-one according to this utility model embodiment.
Reference:
Overlapping refrigerating cycle system 100,
Stage compressor 11, first-stage condenser 12, a nuclear one-stage throttling device 13, auxiliary evaporator 14, ejector 15,
First import 151, the second import 152, the first outlet 153, injecting chamber 154, induction tunnel 1541, nozzle 1542, mixed
Conjunction room 155, mixing section 1551, trunnion 1552, diffusion room 156,
Split-compressor 21, two-step throttle device 22, secondary evaporimeter 23,
Intermediate Heat Exchanger 3, evaporator section 31, condensation segment 32,
Bypass pipe 4, the first end 41, the second end 42,
First on-off valve 5,
Refrigerator air-conditioning fan all-in-one 200,
Housing 201, air cooler portion 202, air outlet 2021, refrigerator portion 203, handle 2031, roller 204.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most extremely
Same or similar label represents same or similar element or has the element of same or like function eventually.Below by
The embodiment being described with reference to the drawings is exemplary, is only used for explaining this utility model, and it is not intended that to this practicality
Novel restriction.
In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear",
The instruction such as "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, be for only for ease of description this utility model and
Simplify and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation
Structure and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second "
It is only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate that indicated technology is special
The quantity levied.Thus, define " first ", the feature of " second " can express or implicitly include one or
The more this feature of person.In description of the present utility model, except as otherwise noted, " multiple " be meant that two or
Two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be detachable
Connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to
It is indirectly connected to by intermediary, can be the connection of two element internals.For those of ordinary skill in the art
Speech, can understand above-mentioned term concrete meaning in this utility model with concrete condition.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
D score can include that the first and second features directly contact, it is also possible to includes that the first and second features are not directly contacts
But by the other characterisation contact between them.And, fisrt feature second feature " on ", " top "
" above " includes that fisrt feature directly over second feature and oblique upper, or is merely representative of fisrt feature level height
Higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include that fisrt feature exists
Directly over second feature and oblique upper, or it is merely representative of fisrt feature level height less than second feature.
Below with reference to Fig. 1-Fig. 3, the overlapping refrigerating cycle system 100 according to this utility model embodiment is described.
As it is shown in figure 1, according to the overlapping refrigerating cycle system 100 of this utility model first aspect embodiment, including one
Level cooling cycle system and two-stage system SAPMAC method system.
Wherein, one-level cooling cycle system includes that the stage compressor 11 being sequentially connected, first-stage condenser 12, one-level save
Stream device 13, auxiliary evaporator 14 and ejector 15.Two-stage system SAPMAC method system includes the two-step throttle being sequentially connected
Device 22, secondary evaporimeter 23 and split-compressor 21.One-level cooling cycle system is with two-stage system SAPMAC method system altogether
With an Intermediate Heat Exchanger 3 such as evaporative condenser etc..Intermediate Heat Exchanger 3 includes evaporator section 31 and condensation segment 32, steams
Sending out section 31 to be connected between auxiliary evaporator 14 and stage compressor 11, condensation segment 32 is connected to two-step throttle device
Between 22 and split-compressor 21.Alternatively, a nuclear one-stage throttling device 13 and two-step throttle device 22 can be all electronics
Expansion valve, but it is not limited to this.
Specifically, with reference to Fig. 1, ejector 15 has the first import the 151, second import 152 and the first outlet 153,
First import 151 is connected with the outlet of auxiliary evaporator 14, the second import 152 and outlet of a nuclear one-stage throttling device 13
Being connected, the first outlet 153 is connected with the entrance of evaporator section 31.Such as, a nuclear one-stage throttling device 13 and ejector 15
Second import 152 can be connected by bypass pipe 4.Wherein, the first end 41 and nuclear one-stage throttling device 13 of bypass pipe 4
Outlet be connected, the second end 42 of bypass pipe 4 is connected with the second import 152 of ejector 15.
For example, referring to Fig. 1, the air vent (such as, the upper end in Fig. 1) of stage compressor 11 and first-stage condenser
The entrance (such as, the right-hand member in Fig. 1) of 12 is connected, the outlet (such as, the left end in Fig. 1) of first-stage condenser 12
It is connected with the entrance (such as, the upper end in Fig. 1) of a nuclear one-stage throttling device 13, the outlet (example of a nuclear one-stage throttling device 13
Such as, the lower end in Fig. 1) it is divided into two-way, a wherein road and the entrance of auxiliary evaporator 14 (such as, upper in Fig. 1
End) it is connected, another road is connected with the second import 152 of ejector 15.Ejector 15 first outlet 153 with in
Between heat exchanger 3 evaporator section 31 entrance be connected, the outlet of the evaporator section 31 of Intermediate Heat Exchanger 3 and stage compressor
The air entry (such as, the lower end in Fig. 1) of 11 is connected.
The air vent (such as, the upper end in Fig. 1) of split-compressor 21 enters with the condensation segment 32 of Intermediate Heat Exchanger 3
Mouth is connected, and the outlet of the condensation segment 32 of Intermediate Heat Exchanger 3 is connected with the entrance of two-step throttle device 22, two-step throttle
The outlet of device 22 is connected with the entrance of secondary evaporimeter 23, the outlet of secondary evaporimeter 23 and split-compressor 21
Air entry (such as, the lower end in Fig. 1) be connected.
Wherein, one-level cooling cycle system can undertake the refrigeration of the high temperature section of overlapping refrigerating cycle system 100, two grades
Kind of refrigeration cycle undertakes the refrigeration of the low-temperature zone of overlapping refrigerating cycle system 100.Specifically, one-level cooling cycle system
Can use high boiling cold-producing medium such as R410a etc., two-stage system SAPMAC method system can use lower boiling cold-producing medium
Such as R23 etc..One-level cooling cycle system and two-stage system SAPMAC method system should by sharing an Intermediate Heat Exchanger 3
Two parts cooling cycle system connects.Cold-producing medium in one-level cooling cycle system evaporates in Intermediate Heat Exchanger 3
Heat absorption, the cold-producing medium in two-stage system SAPMAC method system condenses heat release in Intermediate Heat Exchanger 3.
Cold-producing medium in one-level cooling cycle system evaporates the cold of acquisition in the evaporator section 31 of Intermediate Heat Exchanger 3 can be mended
Repay the cold-producing medium in two-stage system SAPMAC method system in the condensation segment 32 of Intermediate Heat Exchanger 3, condense required cold, to ensure
The even running of two-stage cooling cycle system.
The evaporation additionally, the some refrigerant in one-level kind of refrigeration cycle can absorb heat in auxiliary evaporator 14, externally produces
Refrigeration, say, that the operation of one-level cooling cycle system is not only to carry for the refrigeration of two-stage system SAPMAC method system
Semen donors, one-level cooling cycle system also has refrigeration simultaneously.Thus, overlapping refrigerating cycle system 100
Two-stage system SAPMAC method system can obtain the cryogenic temperature such as-40 DEG C of a relative low temperature, and one-level cooling cycle system can
To obtain the cryogenic temperature such as-10 DEG C of a relatively-high temperature.Need exist for explanation, " relatively-high temperature " and " phase
To low temperature " be cryogenic temperature and the two-stage system SAPMAC method system of one-level cooling cycle system the comparison of cryogenic temperature for
's.
Such as, such as R410a of the cold-producing medium in one-level cooling cycle system etc., after the compression of stage compressor 11, obtains
The gaseous refrigerant of High Temperature High Pressure, the gaseous refrigerant of High Temperature High Pressure enters and carries out in first-stage condenser 12 condensing heat release and turning
Changing the cold-producing medium for high-pressure liquid into, after condensation, the cold-producing medium of high-pressure liquid enters nuclear one-stage throttling device 13 throttling expansion, joint
Gas-liquid two-phase mix refrigerant after stream is divided into two-way, and wherein a road enters ejector from the outlet of a nuclear one-stage throttling device 13
Second import 152 of 15, an other road enters auxiliary evaporator 14.
From the outlet of auxiliary evaporator 14 low-pressure gaseous refrigerant out and the gas out of the outlet from a nuclear one-stage throttling device 13
Liquid two-phase mixtures cold-producing medium mixes in ejector 15, from the outlet of auxiliary evaporator 14 low-pressure gaseous refrigerant quilt out
After the outlet of a nuclear one-stage throttling device 13 gas-liquid two-phase cold-producing medium injection out, enter the evaporator section 31 of Intermediate Heat Exchanger 3
Heat absorption evaporation, is converted into the cold-producing medium of gaseous state, and then the cold-producing medium of the gaseous state in evaporator section 31 flows out from evaporator section 31
And reenter compression in stage compressor 11 via the air entry of stage compressor 11, and so move in circles, one-level
Cooling cycle system can continuously operation.
Specifically, with reference to Fig. 2, ejector 15 includes injecting chamber 154, mixing chamber 155 and the diffusion room 156 being sequentially connected.
Wherein, the first import 151 and the second import 152 are each provided in injecting chamber 154.Further, it is provided with in injecting chamber 154
Induction tunnel 1541, the second import 152 is located at one end (such as, the left end in Fig. 2) of induction tunnel 1541, induction tunnel 1541
The other end (such as, the right-hand member in Fig. 2) there is nozzle 1542.First import 151 is located at a side of injecting chamber 154
On wall (such as, the lower wall in Fig. 2), the first outlet 153 is located at one end of diffusion room 156 (such as, in Fig. 2
Right-hand member).Specifically, mixing chamber 155 includes mixing section 1551 and trunnion 1552, and the first end of mixing section 1551 is (such as,
Left end in Fig. 2) it is connected with injecting chamber 154, second end (such as, the right-hand member in Fig. 2) of mixing section 1551 and trunnion
1552 are connected, and the cross-sectional area of mixing section 1551 is gradually reduced in the direction of fluid.The cross section of diffusion room 156
Amass and be gradually increased in the direction of fluid.
The operation principle of ejector 15 is as follows: when working fluid (such as, the system in nuclear one-stage throttling device 13 exit in Fig. 1
Cryogen) flow through the second import 152 (i.e. high-pressure inlet) of ejector 15 when entering injection section, the static energy of working fluid or
Heat energy changes into kinetic energy, and pressurized working fluid forms high-speed jet at nozzle 1542 and causes parital vacuum, so that making it press
Power is less than driving fluid (such as, the exit of auxiliary evaporator 14 in Fig. 1 at the first import 151 (i.e. low pressure inlet) place
Cold-producing medium) pressure, under the effect of this pressure differential, driving fluid injecting chamber 154 by injection enter mixing section 1551.
Due to the turbulent diffusion of jet boundary layer, working fluid and surrounding are mixed by the driving fluid rolling up suction and carry out energy exchange,
Accelerating under the effect of working fluid after the mixing section 1551 of driving fluid entrance ejector 15, two strands of refrigerant fluids are mixed
Closing and gradually form fluid-mixing single uniform and that pressure is placed in the middle in room 155, working fluid and driving fluid enter mixing section
After 1551, carrying out speed equilibrium, along with mixing section 1551 cross section gradually tapers up, fluid-mixing speed starts to be gradually increased,
Maximum is reached at trunnion 1552.Subsequently, mix refrigerant fluid enters diffusion room 156, and speed constantly slows down, kinetic energy
Constantly being converted into pressure energy, at the first outlet 153 of ejector 15, fluid-mixing speed reduces, and pressure raises, and then
Temperature raises.
Cold-producing medium such as R23 in two-stage system SAPMAC method system etc. form High Temperature High Pressure after split-compressor 21 compresses
Gaseous refrigerant, the gaseous refrigerant of High Temperature High Pressure enters the condensation segment 32 of Intermediate Heat Exchanger 3 to carry out condensation and forms height
The cold-producing medium of hydraulic fluid state, then the cold-producing medium of high-pressure liquid carries out throttling expansion through two-step throttle device 22 and forms low pressure
The cold-producing medium of liquid, the cold-producing medium of low-pressure liquid enters secondary evaporimeter 23 and by absorbing the heat in surrounding not
Disconnected evaporation, thus surrounding is played refrigeration.The cold-producing medium of low-pressure liquid absorbs heat steaming in secondary evaporimeter 23
Send out the cold-producing medium being converted into gaseous state, after the cold-producing medium of gaseous state is discharged by secondary evaporimeter 23 and via split-compressor 21
Air entry reenter split-compressor 21 in be compressed, so move in circles, two-stage system SAPMAC method just can connect
Continue and be constantly operated.
Overlapping refrigerating cycle system 100 according to this utility model embodiment, by setting in one-level cooling cycle system
Put ejector 15, reclaimed part irreversible work, be effectively improved the system of the evaporator section 31 entering Intermediate Heat Exchanger 3
The temperature of cryogen, improves the heat exchange efficiency of overlapping refrigerating cycle system 100, has been effectively saved the energy, reduces
The energy consumption of overlapping refrigerating cycle system 100, has reached the purpose of energy-conserving and environment-protective.
According to embodiments more of the present utility model, one-level cooling cycle system also includes the first on-off valve 5 such as stop valve
Etc., the first on-off valve 5 can be located on the pipeline between the entrance of auxiliary evaporator 14 and the first end of bypass pipe 4.
Thus, it is possible in regulating in one-level cooling cycle system auxiliary evaporator 14 by the first on-off valve 5 and in bypass pipe 4
The flow-rate ratio of cold-producing medium, controls the refrigerating capacity of auxiliary evaporator 14 and the heat exchange amount of the evaporator section 31 of Intermediate Heat Exchanger 3,
Expand the range of accommodation of refrigerating capacity, make overlapping refrigerating cycle system 100 can obtain a wider refrigeration scope,
Thus drastically increase the scope of application of overlapping refrigerating cycle system 100.Additionally, overlapping also can be controlled easily
The refrigerating efficiency of formula cooling cycle system 100, improves the stability of overlapping refrigerating cycle system 100.
Such as, when needing the refrigerating efficiency improving two-stage system SAPMAC method system, say, that need to make secondary evaporimeter
During surrounding fast-refrigerating residing for 23, the aperture of the first on-off valve 5 can be reduced, so that assisted evaporative
Device 14 inner refrigerant flow reduces, and the flow of bypass pipe 4 inner refrigerant will increase accordingly, so that centre is changed
Cold produced by the evaporator section 31 of hot device 3 increases faster, thus can improve the refrigeration of two-stage system SAPMAC method system
Efficiency；When needing the refrigerating efficiency improving one-level cooling cycle system, say, that need to make auxiliary evaporator 14 institute
During the surrounding fast-refrigerating located, the aperture of the first on-off valve 5 can be increased, so that auxiliary evaporator 14
The flow of interior cold-producing medium increases, and the flow of bypass pipe 4 inner refrigerant will reduce accordingly, thus improve auxiliary and change
The heat exchange efficiency of hot device, accelerates the refrigeration of one-level cooling cycle system.
According to other embodiments of the present utility model, one-level cooling cycle system can also include that the second on-off valve such as cuts
Only valves etc. (not shown), the second on-off valve can be located on bypass pipe 4.Thus, by regulating the second on-off valve
Aperture equally regulate auxiliary evaporator in one-level cooling cycle system 14 in and the flow of bypass pipe 4 inner refrigerant
Ratio, controls the refrigerating capacity of auxiliary evaporator 14 and the heat exchange amount of the evaporator section 31 of Intermediate Heat Exchanger 3.
Such as, when needing the refrigerating efficiency improving two-stage system SAPMAC method system, say, that need to make secondary evaporimeter
During surrounding fast-refrigerating residing for 23, the aperture of the second on-off valve such as stop valve etc. can be tuned up, so that
The flow obtaining bypass pipe 4 inner refrigerant increases, and the flow of auxiliary evaporator 14 inner refrigerant will reduce accordingly, from
And cold produced by the evaporator section 31 of Intermediate Heat Exchanger 3 is increased faster, thus can improve that two-stage system is cold to be followed
The refrigerating efficiency of loop systems；When needing the refrigerating efficiency improving one-level cooling cycle system, say, that need to make auxiliary
When helping the surrounding fast-refrigerating residing for vaporizer 14, the aperture of the second on-off valve can be reduced, so that other
The flow of siphunculus 4 inner refrigerant will reduce, and the flow of the cold-producing medium in auxiliary evaporator 14 will increase accordingly,
Thus improve the heat exchange efficiency of supplementary heat exchanger, accelerate the refrigeration of one-level cooling cycle system.
It is, of course, understood that one-level cooling cycle system can also include the first on-off valve 5 and the second break-make simultaneously
Valve, the first on-off valve 5 is located on the pipeline between the entrance of auxiliary evaporator 14 and the first end of bypass pipe 4, and second
On-off valve is located on bypass pipe 4.Thus, it is possible to individually regulate auxiliary evaporator 14 in one-level cooling cycle system
The interior flow with bypass pipe 4 inner refrigerant, so that one-level cooling cycle system and the system of two-stage system SAPMAC method system
Cold can individually regulate and control, so that the refrigeration regulation of overlapping refrigerating cycle system 100 is more flexible.
According to embodiments more of the present utility model, one-level cooling cycle system can also include three-way valve (not shown),
First valve port of three-way valve and the outlet of a nuclear one-stage throttling device 13 are connected, the second valve port of three-way valve and auxiliary evaporator 14
Entrance be connected, the 3rd valve port of three-way valve is connected with the first end of bypass pipe 4.Thus, by regulating three-way valve
The position of portion's spool, can control the flow direction of the exit cold-producing medium of a nuclear one-stage throttling device 13, and then can regulate overlapping
The refrigeration work of formula cooling cycle system 100.
Such as, the entrance that the first valve port is three-way valve of three-way valve, the second valve port and two that the 3rd valve port is three-way valve go out
Mouthful, by the position of regulating three-way valve inner spool so that the first valve port and the second valve port are connected, or first
Valve port and the 3rd valve port are connected.When the first valve port of three-way valve and the second valve port are connected, a nuclear one-stage throttling device 13
The cold-producing medium in exit fully enter the evaporator section entering back into Intermediate Heat Exchanger 3 in auxiliary evaporator 14 after heat absorption evaporation
31 carry out continuing heat absorption evaporation；When the first valve port of three-way valve and the 3rd valve port are connected, a nuclear one-stage throttling device 13
The cold-producing medium in exit all enter the evaporator section 31 of Intermediate Heat Exchanger 3 via bypass pipe 4 and be evaporated heat absorption.When
When needing to adjust the flow flowing into auxiliary evaporator 14 inner refrigerant, the aperture of the second valve port can be adjusted, work as needs
When adjusting the flow of the cold-producing medium flowed in bypass pipe 4, the aperture of the 3rd valve port can be adjusted.
Alternatively, three-way valve can be electric T-shaped valve, but is not limited to this.Thus can be by electric T-shaped valve be accessed
In the electric-control system of overlapping refrigerating cycle system 100, such that it is able to utilize electric-control method to automatically control one-level refrigeration
Blood circulation and the refrigerating efficiency of two-stage system SAPMAC method system.
Overlapping refrigerating cycle system 100 according to this utility model embodiment, by setting in one-level cooling cycle system
Put ejector 15, improve the heat exchange efficiency of overlapping refrigerating cycle system 100, be effectively saved the energy, reduce
The energy consumption of overlapping refrigerating cycle system 100, has reached the purpose of energy-conserving and environment-protective.Additionally, lead to by arranging first
Disconnected valves 5 etc., are effectively improved overlapping refrigerating cycle system 100 reliability of operation so that user can basis
Actual demand regulation refrigerating capacity, expands the range of accommodation of refrigerating capacity, drastically increases overlapping refrigerating cycle system
The scope of application of 100.
According to the refrigerating plant of this utility model second aspect embodiment, including real according to the above-mentioned first aspect of this utility model
Execute the overlapping refrigerating cycle system 100 of example.
According to embodiments more of the present utility model, refrigerating plant can be refrigerator air-conditioning fan all-in-one 200.Wherein, ice
Case air cooler all-in-one 200 can be used in kitchen.Thus, by refrigerator and air cooler are integrated machine, have
Reduce to effect taking up room of air cooler and refrigerator, and it is the hottest to efficiently solve summer kitchen, is not desired to into cook
Problem, drastically increase the quality of the life of consumer.
Specifically, with reference to Fig. 3, refrigerator air-conditioning fan all-in-one 200 includes: housing 201, air cooler portion 202 and refrigerator
Portion 203.Wherein, auxiliary evaporator 14 is located in air cooler portion 202, and secondary evaporimeter 23 is located at refrigerator portion 203
In.It is to say, one-level cooling cycle system may be used for the refrigeration in air cooler portion 202, two-stage system SAPMAC method system
May be used for the refrigeration in refrigerator portion 203.Thus, the temperature at the air outlet 2021 in air cooler portion 202 can be made to reach
0 DEG C～10 DEG C, the temperature in refrigerator reaches-20 DEG C～-10 DEG C, such that it is able to store temperature requirement higher in refrigerator
The seafood of article such as costliness or domestic medicine etc..
Alternatively, refrigerator portion 203 can be setting up and down with air cooler portion 202, but is not limited to this.Such as, at Fig. 3
Example in, air cooler portion 202 is positioned at the top of refrigerator, and simple in construction is easy to use.It will of course be understood that
It is that refrigerator portion 203 can also be arranged left and right with air cooler portion 202, and this is not especially limited by this utility model.
It is each provided at refrigerator air-conditioning fan according to embodiments more of the present utility model, stage compressor 11 and split-compressor 21
The bottom of all-in-one 200.Thus, it is possible to be effectively reduced the center of gravity of refrigerator air-conditioning fan all-in-one 200, increase counterweight,
Thus improve the stability of refrigerator air-conditioning fan all-in-one 200.
Further, the bottom of refrigerator air-conditioning fan all-in-one 200 is provided with roller 204 such as rustless steel return pulley etc..Thus,
It is easy to the movement of refrigerator air-conditioning fan all-in-one 200, and simple in construction, it is simple to realize.
Specifically, refrigerator portion 203 is provided with handle 2031.With reference to Fig. 3, handle 2031 can be located at refrigerator portion 203
Door body on, handle 2031 can be formed generally as circular arc.Thus, user is facilitated to open or closing refrigerator portion 203
Door body, consequently facilitating user picks and places article.
According to other embodiments of the present utility model, refrigerating plant is refrigerator (not shown).Specifically, in refrigerator
Cold room and refrigerating chamber can be provided with.Wherein, auxiliary evaporator 14 can be located in cold room, secondary evaporimeter 23
Can be located in refrigerating chamber.It is to say, one-level cooling cycle system may be used for the refrigeration of cold room, two-stage system is cold
Blood circulation may be used for the refrigeration of refrigerating chamber.
According to the refrigerating plant of this utility model second aspect embodiment, by arranging the overlapping of above-mentioned first aspect embodiment
Formula cooling cycle system 100, improves the overall performance of refrigerating plant.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
It is concrete that the description of " example ", " concrete example " or " some examples " etc. means to combine this embodiment or example describes
Feature, structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual,
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, knot
Structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Embodiment the most of the present utility model, it will be understood by those skilled in the art that:
Without departing from these embodiments being carried out multiple change in the case of principle of the present utility model and objective, revise, replace
Changing and modification, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. an overlapping refrigerating cycle system, it is characterised in that including:
One-level cooling cycle system, described one-level cooling cycle system includes stage compressor, the one-level condensation being sequentially connected
Device, a nuclear one-stage throttling device, auxiliary evaporator and ejector；
Two-stage system SAPMAC method system, described two-stage system SAPMAC method system includes the two-step throttle device being sequentially connected, two grades of steamings
Sending out device and split-compressor, described one-level cooling cycle system shares a centre with described two-stage system SAPMAC method system and changes
Hot device, described Intermediate Heat Exchanger includes that evaporator section and condensation segment, described evaporator section are connected to described auxiliary evaporator and institute
Stating between stage compressor, described condensation segment is connected between described two-step throttle device and described split-compressor,
Wherein said ejector has the first import, the second import and the first outlet, and described first import is steamed with described auxiliary
The outlet sending out device is connected, and described second import is connected with the outlet of a described nuclear one-stage throttling device, described first outlet and institute
The entrance stating evaporator section is connected.
Overlapping refrigerating cycle system the most according to claim 1, it is characterised in that described one-level kind of refrigeration cycle
In also include bypass pipe, the first end of described bypass pipe is connected with the outlet of a described nuclear one-stage throttling device, described bypass pipe
The second end be connected with described second import.
Overlapping refrigerating cycle system the most according to claim 2, it is characterised in that described one-level kind of refrigeration cycle
System also includes that the first on-off valve, described first on-off valve are located at the entrance of described auxiliary evaporator and described bypass pipe
On pipeline between first end.
4. according to the overlapping refrigerating cycle system described in Claims 2 or 3, it is characterised in that described one-level is freezed
Blood circulation also includes that the second on-off valve, described second on-off valve are located on described bypass pipe.
Overlapping refrigerating cycle system the most according to claim 2, it is characterised in that described one-level kind of refrigeration cycle
System also includes three-way valve, and the first valve port of described three-way valve is connected with the outlet of a described nuclear one-stage throttling device, described three
Second valve port of logical valve is connected with the entrance of described auxiliary evaporator, the 3rd valve port of described three-way valve and described bypass pipe
The first end be connected.
6. a refrigerating plant, it is characterised in that include according to the superposition type system according to any one of claim 1-5
SAPMAC method system.
Refrigerating plant the most according to claim 6, it is characterised in that described refrigerating plant is refrigerator air-conditioning fan one
Body machine.
Refrigerating plant the most according to claim 7, it is characterised in that described refrigerator air-conditioning fan all-in-one includes:
Housing；
Air cooler portion, described auxiliary evaporator is located in described air cooler portion；With
Refrigerator portion, described refrigerator portion is setting up and down with described air cooler portion, and described secondary evaporimeter is located in described refrigerator portion.
Refrigerating plant the most according to claim 7, it is characterised in that described stage compressor and described two grades of pressures
Contracting machine is each provided at the bottom of refrigerator air-conditioning fan all-in-one.
Refrigerating plant the most according to claim 6, it is characterised in that described refrigerating plant is refrigerator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423520.8U CN205641654U (en) | 2016-05-10 | 2016-05-10 | Cascade refrigeration circulation system and have its refrigerating plant |
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| CN201620423520.8U CN205641654U (en) | 2016-05-10 | 2016-05-10 | Cascade refrigeration circulation system and have its refrigerating plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224838A (en) * | 2017-12-27 | 2018-06-29 | 青岛海尔空调电子有限公司 | Air-conditioner system |
| CN109307377A (en) * | 2018-09-20 | 2019-02-05 | 西安交通大学 | Using the two-stage self-cascade refrigeration system system and round-robin method of injector synergy |
| CN112303767A (en) * | 2020-11-09 | 2021-02-02 | 广东立佳实业有限公司 | Dynamic constant temperature and humidity control assembly under high-power load |
-
2016
- 2016-05-10 CN CN201620423520.8U patent/CN205641654U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224838A (en) * | 2017-12-27 | 2018-06-29 | 青岛海尔空调电子有限公司 | Air-conditioner system |
| CN109307377A (en) * | 2018-09-20 | 2019-02-05 | 西安交通大学 | Using the two-stage self-cascade refrigeration system system and round-robin method of injector synergy |
| CN109307377B (en) * | 2018-09-20 | 2020-05-26 | 西安交通大学 | Two-stage self-cascade refrigeration cycle system and circulation method adopting ejector to increase efficiency |
| CN112303767A (en) * | 2020-11-09 | 2021-02-02 | 广东立佳实业有限公司 | Dynamic constant temperature and humidity control assembly under high-power load |
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