CN102840721A - Single circulation refrigeration system provided with electric valve - Google Patents
Single circulation refrigeration system provided with electric valve Download PDFInfo
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- CN102840721A CN102840721A CN2012103426628A CN201210342662A CN102840721A CN 102840721 A CN102840721 A CN 102840721A CN 2012103426628 A CN2012103426628 A CN 2012103426628A CN 201210342662 A CN201210342662 A CN 201210342662A CN 102840721 A CN102840721 A CN 102840721A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 15
- 210000003734 kidney Anatomy 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241001522296 Erithacus rubecula Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention discloses a single circulation refrigeration system provided with an electric valve. The single circulation refrigeration system comprises a compressor, a one-way valve, a condenser, an electric valve, a capillary pipe and an evaporator, wherein the compressor, the one-way valve, the condenser, the electric valve, the capillary pipe and the evaporator are connected in sequence; one end of the evaporator is connected with the capillary pipe, and the other end of the evaporator is connected with the compressor; and the electric valve is connected with the exhaust opening of the compressor through a pressure relief pipe, and can be switched among a cut-off state, an open state and a pressure relief state. The single circulation refrigeration system provided with the electric valve disclosed by the invention has the advantages of capability of effectively reducing energy loss in the refrigeration system, low noise, capability of enhancing the stability of the refrigeration system and the like.
Description
Technical field
The present invention relates to a kind of single round-robin system cooling system that is provided with motor-driven valve.
Background technology
The normal domestic use refrigerator belongs to vapour compression refrigeration system more, is to open, stop realizing the control to the temperature inside the box through the control compressor.But compressor is out-of-work the time, and the pressure of condenser and evaporimeter tends to balance, and hot cold-producing medium flows into evaporimeter through capillary in the process of balance, makes refrigerator produce a part of meaningless energy loss.During compressor start, condenser and evaporimeter also some energy loss in rebuliding the process of pressure reduction, it is many more that more frequent energy loss is opened, stopped to refrigerator.This part is because compressor opening, the energy loss of stopping causing can cause the rising of refrigerator power consumption.
The Chinese invention patent that application number is 03112681.2, name is called " the energy-saving refrigerator refrigeration system of condenser pressurize " discloses a kind of condenser pressurize power-saving technology; Its utilize motor-driven valve in moment that compressor stops the port closing with condenser; Keep the pressure differential between condenser and the evaporimeter, do not allow hot cold-producing medium inflow evaporator to influence refrigeration.When compressor starts once more, can save the process that rebulids pressure reduction, realize the refrigerator refrigeration rapidly.In order to help compressor start, reduce the pressure of blast pipe, above-mentioned " the energy-saving refrigerator refrigeration system of condenser pressurize " also will comprise " pressure release " loop of check valve in the design of the entry position of condenser.This traditional condenser pressurize power-saving technology, the motor-driven valve of use belongs to the bi-stable pulse electromagnetic valve of " 2/2-way ", and the motion switching mode of spool is the linear reciprocation impact type.The maximum defective of this magnetic valve is that the action noise is big; And itself can't realize " pressure release " function; Require specialized designs to have special use " pressure release capillary " or increase " 2/2-way " pressure release magnetic valve of condensation function; The problem of bringing thus is pressure release loop " low-response ", closed check valve poor performance, and parts are many, refrigerator energy-saving effect unstability.
Summary of the invention
The present invention is the weak point that exists in the above-mentioned prior art for avoiding, and a kind of single round-robin system cooling system that is provided with motor-driven valve is provided, so that realize cold-producing medium shunting, pressurize, the multinomial function of pressure release.
The present invention adopts following technical scheme for the technical solution problem.
Be provided with the single round-robin system cooling system of motor-driven valve, its design feature is to comprise compressor, check valve, condenser, motor-driven valve, capillary and evaporimeter; Said compressor, check valve, condenser, motor-driven valve, capillary and evaporimeter are connected successively, and an end of said evaporimeter is connected with capillary, and the other end of evaporimeter is connected with compressor; Said motor-driven valve is connected with the exhaust outlet of compressor through pressure release passage.
The design feature that is provided with the single round-robin system cooling system of motor-driven valve of the present invention also is:
Said motor-driven valve comprises valve seat, motor and valve gap; Said valve seat be provided with an inlet, a pressure relief opening and a plurality of outlet, said pressure relief opening is positioned on the upper surface of valve seat with outlet; Said valve gap is sheathed on the top of said valve seat; Said motor is fixedly installed on the said valve gap, and said motor comprises stator and rotor, and said stator is arranged on the outer surface of said valve gap, and said rotor is arranged among the inner chamber of said valve gap; Said centre of rotor position is provided with axle and said rotor can be around the center line rotation of axle; The lower end of said axle is fixed with the spool that offers pressure release guiding gutter and groove; And the lower surface of said spool and the upper surface of said valve seat connect; Said pressure release guiding gutter is opened on the lower surface of said spool, and said groove penetrates said spool along the thickness direction of said spool.
The below of said rotor is provided with projection, also is provided with limited block on the said valve seat.
Said pressure release guiding gutter and groove are kidney slot; Said pressure release guiding gutter is a straight shape groove, and said groove is a deep-slotted chip breaker.
The valve seat of said motor-driven valve is provided with an outlet.
Compared with present technology, beneficial effect of the present invention is embodied in:
Motor-driven valve of the present invention; Arrive different positions through the motor-driven valve valve core rotation; Realize refrigerator refrigerant shunting, by functions such as, pressure releases, make the hot cold-producing medium of high pressure in the condenser after compressor shutdown, can not get into evaporimeter, keep condenser mesohigh cold-producing medium institute tool potential energy; Reduce the energy loss in the refrigeration system effectively, reach purpose of energy saving; Utilize the pressure release loop of motor-driven valve valve core inside, make check valve can realize quick closedown, improved refrigeration system energy-saving effect and stability, have the advantages that noise is low, stability is high in the moment of compressor shutdown.The spool of motor-driven valve is rotated by step motor drive, has overcome the noise defective of bistable electromagnetic valve in commutation process in the past, has the little advantage of noise.
The single round-robin system cooling system that is provided with motor-driven valve of the present invention has the stable advantages of higher that energy loss, the noise that can reduce effectively in the refrigeration system are low, can improve refrigeration system.
Description of drawings
Fig. 1 is the pressure release state diagram that is provided with the single round-robin system cooling system of motor-driven valve of the present invention.
Fig. 2 is the front view of motor-driven valve of the present invention.
Fig. 3 is the cutaway view of motor-driven valve of the present invention.
Fig. 4 is the vertical view of the valve seat (outlet) of motor-driven valve of the present invention.
Fig. 5 is the A-A cutaway view among Fig. 4.
Fig. 6 is the vertical view of the spool of motor-driven valve of the present invention.
Fig. 7 is the B-B cutaway view of Fig. 6.
State diagram when Fig. 8 is in cut-off state for the valve seat of motor-driven valve of the present invention during with the spool cooperation.
State diagram when Fig. 9 is in the pressure release state for the valve seat of motor-driven valve of the present invention during with the spool cooperation.
State diagram when Figure 10 is in open mode for the valve seat of motor-driven valve of the present invention during with the spool cooperation.
Label in accompanying drawing 1～accompanying drawing 10: 1 compressor, 2 check valves, 3 condensers, 4 motor-driven valves, 41 valve seats, 411 inlets; 412 pressure relief openings, 413 outlets, 42 motors, 421 stators, 422 rotors, 4221 axles; 43 valve gaps, 44 spools, 441 guiding gutters, 442 grooves, 5 capillaries, 6 evaporimeters; 7 pressure release passages, 8 feed tubes, 9 drain pipes, 10 relief tubes, 11 power interfaces.
Below pass through the specific embodiment, and combine accompanying drawing that the present invention is described further.
The specific embodiment
Referring to Fig. 1～Figure 10, be provided with the single round-robin system cooling system of motor-driven valve, comprise compressor 1, check valve 2, condenser 3, motor-driven valve 4, capillary 5 and evaporimeter 6; Said compressor 1, check valve 2, condenser 3, motor-driven valve 4, capillary 5 are connected with evaporimeter 6 successively, and an end of said evaporimeter 6 is connected with capillary 5, and the other end of evaporimeter 6 is connected with compressor 1; Said motor-driven valve 4 is connected through the exhaust outlet of pressure release passage 7 with compressor 1.Motor-driven valve is adjusted to said open mode along with the startup of compressor, compressor stop phase motor-driven valve is adjusted to said pressure release state or cut-off state.
Be designed with pressure release guiding gutter and groove on the spool, be designed with pressure relief opening and outlet on the valve seat.When the spool of motor-driven valve rotated to the pressure release state, by the pressure release guiding gutter institute conducting of valve core inside, the cold-producing medium in the pressure relief opening can get into outlet through the pressure release guiding gutter between pressure relief opening on the motor-driven valve valve seat and the outlet.When electronic rotary valve was in cut-off state, pressure relief opening, outlet and inlet were blocked by spool, and motor-driven valve is in the state that breaks off fully.
The valve core inside of motor-driven valve has designed " the pressure release loop " that be made up of relief tube and pressure relief opening that helps compressor start, and the responding ability of check valve is improved, and reverse reliability of closing improves, the stability raising of refrigerator energy-saving effect.Cold-producing medium shunting, pressurize, the multinomial function of pressure release have been realized with a rotary valve.
Said motor-driven valve 4 comprises valve seat 41, motor 42 and valve gap 43; Said valve seat 41 be provided with 411, pressure relief openings 412 of inlet and a plurality of outlet 413, said pressure relief opening 412 is positioned on the upper surface of valve seat 41 with outlet 413; Said valve gap 43 is sheathed on the top of said valve seat 41; Said motor 42 is fixedly installed on the said valve gap 43, and said motor 42 comprises stator 421 and rotor 422, and said stator 421 is arranged on the outer surface of said valve gap 43, and said rotor 422 is arranged among the inner chamber of said valve gap 43; The centre of said rotor 422 is provided with axle 4221 and said rotor 422 can be around the center line rotation of axle 4221; The lower end of said axle 4221 is fixed with the spool 44 that offers pressure release guiding gutter 441 and groove 442; And the upper surface of the lower surface of said spool 44 and said valve seat 41 connects; Said pressure release guiding gutter 441 is opened on the lower surface of said spool 44, and said groove 442 penetrates said spool 44 along the thickness direction of said spool 44.
Also being provided with external power source interface 11 on the motor stator of motor-driven valve, is the motor power supply of motor-driven valve through external power source.Said motor is a stepper motor.When spool 44 rotated, said motor-driven valve 4 can change between cut-off state, open mode and pressure release state.
Cut-off state is: do not communicate fully between the outlet 413 of the pressure release guiding gutter 441 of said spool 44 and groove 442 and said valve seat 41; Pressure relief opening 412 is all blocked by spool 44 with outlet 413, does not all communicate between inlet 411 and arbitrary outlet 413 or the pressure relief opening 412.
Open mode: the groove 442 of spool 44 be positioned at just the outlet 413 directly over and pressure relief opening 412 blocked by spool 44; The groove 442 of said spool 44 communicates with the outlet 413 of said valve seat 41; The groove 442 of said inlet 411 through spool 44 is connected with outlet 413, and pressure relief opening 412 with export 413 and enter the mouth and all do not communicate between 411.
The pressure release state: the pressure release guiding gutter 441 of spool 44 is positioned at the top and the groove 442 of outlet 413 and pressure relief opening 412 just and is blocked by valve seat 41; All be connected between the pressure release guiding gutter 441 of spool 44 and the outlet 413 of said valve seat and the pressure relief opening 412; Because pressure release guiding gutter 441 is positioned on the lower surface of spool 44 and does not penetrate said spool 44; Therefore pressure release guiding gutter 441 only be internally just pressure relief opening 412 be connected with outlet 413, thereby said inlet 411 does not all communicate with arbitrary outlet 413, pressure relief opening 412.
The compressor of refrigeration system, check valve, condenser, motor-driven valve, capillary and evaporimeter are connected successively, and an end of said evaporimeter is connected with capillary, and the other end of evaporimeter is connected with compressor, form a cycle refrigeration system.The pressure relief opening of the valve seat of said motor-driven valve is connected between compressor and the check valve through relief tube, and when motor-driven valve was in the pressure release state, exhaust outlet of compressor was able to flow to low pressure evaporator to a small amount of gases at high pressure in the check valve.
Valve seat is that stairstepping is cylindrical, and the last cylinder of following cylinder diameter is big, and following cylinder is a pedestal, and last cylinder is a cylinder table with the concentric setting of following cylinder; Said pressure relief opening is arranged on the end face of said cylinder table with outlet.Said inlet is arranged at the public boundary place of said cylinder table and valve seat, i.e. the position of intersecting of the two.Rotor is a cylindrical shape, and cylinder table is positioned among the inner chamber of rotor just during assembling.Simultaneously, the center of cylinder table is provided with blind hole, makes the lower end of axle snap among the blind hole.The rotor of motor can drive axle and spool rotates together.
The lower surface of spool and the upper surface of cylinder table connect, and make spool can cover just on the pressure relief opening and outlet of valve seat.Because the pressure release guiding gutter and the groove of depression are arranged on the spool, thereby the position of adjustment spool, can make pressure relief opening and outlet communicate with said pressure release guiding gutter or groove.Through the rotational angle and the rotation direction of control step motor, can realize that motor-driven valve changes each other between three kinds of states of appeal.
The different angle of valve core rotation is when diverse location, and the state that is connected between pressure relief opening, outlet and pressure release guiding gutter and the groove also changes thereupon.Because inlet is positioned at cylinder table and valve seat intersection, thereby cold-producing medium can get within the valve pocket that is surrounded by valve gap and valve seat from inlet.When the groove on the spool when outlet on the valve seat communicates, when promptly motor-driven valve was positioned at open mode, the cold-producing medium in the condenser can flow out from outlet, realizes the circulation of cold-producing medium in refrigeration system.
The spool of motor-driven valve is when initial position, and spool is all blocked pressure relief opening and outlet, and the cold-producing medium in the condenser just can't get into outlet, and motor-driven valve promptly is in the state of shutoff, promptly above-mentioned cut-off state, and the interior cold-producing medium of condenser this moment can't circulate.
Then; Through stepper motor rotary rotor and spool; The pressure relief opening of valve seat all is connected with the pressure release guiding gutter of spool with outlet and groove is blocked; The gases at high pressure of exhaust outlet of compressor pass through relief tube, pressure relief opening, outlet and capillary successively so, and then flow to low pressure evaporator, and this moment, refrigeration system was in the pressure release state.Lower amount of refrigerant between compressor exhaust pipe and the check valve can be through the pressure release loop stream to low pressure evaporator, and check valve " response " is rapidly realized closing.Make the cold-producing medium of the interior HTHP of compressor shutdown post-condenser can not flow into the evaporimeter of low-pressure low-temperature on the one hand through motor-driven valve; Kept the high pressure potential energy of condenser inner refrigerant on the other hand; Can freeze rapidly when compressor starts once more, avoid the energy loss of compressor start-stop process.
Be rotated further spool again, when valve core rotation to groove during with position that outlet communicates, when promptly motor-driven valve was positioned at open mode, the cold-producing medium in the valve pocket can flow out from outlet, make cold-producing medium to flow to capillary and evaporimeter from condenser.Pressure relief opening is made cold-producing medium to flow to capillary and evaporimeter through condenser by the spool shutoff simultaneously.
The lower end of said valve seat is connected with many pipelines that communicate with said inlet, pressure relief opening and outlet, is respectively feed tube 8, relief tube 10 and drain pipe 9; Its middle outlet has one or more, and corresponding drain pipe 9 also has one or more.Feed tube 8, relief tube 10 and drain pipe 9 are fixedly connected with the interface of valve seat bottom, are connected with inlet, pressure relief opening and outlet on the valve seat through the corresponding passage in the valve seat.Cold-producing medium gets into motor-driven valve through feed tube, in the cavity that entering rotor and valve seat surround.Feed tube is connected with condenser, and drain pipe is connected with capillary.When groove will enter the mouth when being connected with outlet, be connected between feed tube and the drain pipe, cold-producing medium can get into capillary and evaporimeter through motor-driven valve from condenser.
In being provided with the single round-robin system cooling system of motor-driven valve, have only an outlet and a drain pipe.In the double round robin cooling system, two outlets and two drain pipes are arranged.In three-circulation refrigerating system, three outlets and three drain pipes are arranged.Drain pipe is connected with capillary through pipeline, and cold-producing medium is inputed to capillary and evaporimeter.
Motor-driven valve of the present invention; Arrive different positions through the motor-driven valve valve core rotation; Realize refrigerator refrigerant shunting, by functions such as, pressure releases, make the hot cold-producing medium of high pressure in the condenser after compressor shutdown, can not get into evaporimeter, keep condenser mesohigh cold-producing medium institute tool potential energy; Reduce the energy loss in the refrigeration system effectively, reach purpose of energy saving; Utilize the pressure release loop of motor-driven valve valve core inside, make check valve can realize quick closedown, improved refrigeration system energy-saving effect and stability, have the advantages that noise is low, stability is high in the moment of compressor shutdown.The spool of motor-driven valve is rotated by step motor drive, has overcome the noise defective of bistable electromagnetic valve in commutation process in the past, has the little advantage of noise.
The below of said rotor 422 is provided with projection, also is provided with limited block on the said valve seat 41.Rotor and valve seat one on the other, rotor is fastened on the valve seat.Rotor is a tubular, and the below of rotor outer wall is provided with said projection; The edge of the barrel of rotor and the following cylindrical upper surface of valve seat fits; Limited block is located at down cylindrical edge, can block projection just.When the certain angle of rotor rotation, the projection of rotor below is stopped by the limited block of epirelief on the valve seat just, with the rotational angle of restrict rotor.
Be designed with pressure release guiding gutter and groove on the spool, be designed with pressure relief opening and outlet on the valve seat.When the spool of motor-driven valve rotated to the pressure release state, by the pressure release guiding gutter institute conducting of valve core inside, the cold-producing medium in the pressure relief opening can get into outlet through the pressure release guiding gutter between pressure relief opening on the motor-driven valve valve seat and the outlet.When electronic rotary valve was in cut-off state, pressure relief opening, outlet and inlet were blocked by spool, and motor-driven valve is in the state that breaks off fully.
The valve core inside of motor-driven valve has designed " the pressure release loop " that be made up of relief tube and pressure relief opening that helps compressor start, and the responding ability of check valve is improved, and reverse reliability of closing improves, the stability raising of refrigerator energy-saving effect.Cold-producing medium shunting, pressurize, the multinomial function of pressure release have been realized with a rotary valve.
Said pressure release guiding gutter 441 is kidney slot with groove 442; Said pressure release guiding gutter 441 is a straight shape groove, and said groove 442 is a deep-slotted chip breaker.Said pressure release guiding gutter extends along the surperficial straight line of spool, and the two sides of promptly said kidney slot except that the semicircle at two ends are the plane.Said groove extends along the spool camber line, and the two sides of promptly said groove except that the semicircle at two ends are arcwall face.Because groove is an arcwall face, the center of two outlets is positioned at again on the same circumference, thereby can make groove can cover two outlets simultaneously.
The valve seat of said motor-driven valve is provided with an outlet 413.
Claims (5)
1. be provided with the single round-robin system cooling system of motor-driven valve, it is characterized in that, comprise compressor (1), check valve (2), condenser (3), motor-driven valve (4), capillary (5) and evaporimeter (6); Said compressor (1), check valve (2), condenser (3), motor-driven valve (4), capillary (5) and evaporimeter (6) are connected successively; One end of said evaporimeter (6) is connected with capillary (5), and the other end of evaporimeter (6) is connected with compressor (1); Said motor-driven valve (4) is connected through the exhaust outlet of pressure release passage (7) with compressor (1).
2. the single round-robin system cooling system that is provided with motor-driven valve according to claim 1 is characterized in that, said motor-driven valve (4) comprises valve seat (41), motor (42) and valve gap (43); Said valve seat (41) be provided with an inlet (411), a pressure relief opening (412) and a plurality of outlet (413), said pressure relief opening (412) and outlet (413) are positioned on the upper surface of valve seat (41); Said valve gap (43) is sheathed on the top of said valve seat (41); Said motor (42) is fixedly installed on the said valve gap (43); Said motor (42) comprises stator (421) and rotor (422); Said stator (421) is arranged on the outer surface of said valve gap (43), and said rotor (422) is arranged among the inner chamber of said valve gap (43); The centre of said rotor (422) is provided with the center line rotation that axle (4221) and said rotor (422) can center on axle (4221); The lower end of said axle (4221) is fixed with the spool (44) that offers pressure release guiding gutter (441) and groove (442); And the upper surface of the lower surface of said spool (44) and said valve seat (41) connects; Said pressure release guiding gutter (441) is opened on the lower surface of said spool (44), and said groove (442) penetrates said spool (44) along the thickness direction of said spool (44).
3. the single round-robin system cooling system that is provided with motor-driven valve according to claim 1 and 2 is characterized in that the below of said rotor (422) is provided with projection, and said valve seat also is provided with limited block on (41).
4. according to claim 1 and the 2 described single round-robin system cooling systems that are provided with motor-driven valve, it is characterized in that said pressure release guiding gutter (441) and groove (442) are kidney slot; Said pressure release guiding gutter (441) is a straight shape groove, and said groove (442) is a deep-slotted chip breaker.
5. according to claim 1,2, the 3 or 4 described single round-robin system cooling systems that are provided with motor-driven valve that are used for refrigeration system, it is characterized in that the valve seat of said motor-driven valve is provided with an outlet (413).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210342662.8A CN102840721B (en) | 2012-09-16 | 2012-09-16 | Single circulation refrigeration system provided with electric valve |
| AU2012389785A AU2012389785B2 (en) | 2012-09-16 | 2012-11-08 | Electric valve and refrigeration system comprising same |
| CA2881971A CA2881971C (en) | 2012-09-16 | 2012-11-08 | Electric valve and refrigeration system comprising same |
| PCT/CN2012/001505 WO2014040212A1 (en) | 2012-09-16 | 2012-11-08 | Electric valve and refrigeration system comprising same |
| US14/428,367 US9683765B2 (en) | 2012-09-16 | 2012-11-08 | Electric valve and refrigerating system comprising the same |
| JP2015531412A JP6055923B2 (en) | 2012-09-16 | 2012-11-08 | Electric valve and single-cycle, double-cycle and triple-cycle refrigeration systems including electric valve |
| EP12884521.1A EP2896855B1 (en) | 2012-09-16 | 2012-11-08 | Electric valve and refrigeration system comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210342662.8A CN102840721B (en) | 2012-09-16 | 2012-09-16 | Single circulation refrigeration system provided with electric valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102840721A true CN102840721A (en) | 2012-12-26 |
| CN102840721B CN102840721B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210342662.8A Active CN102840721B (en) | 2012-09-16 | 2012-09-16 | Single circulation refrigeration system provided with electric valve |
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| Country | Link |
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| CN (1) | CN102840721B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114608224A (en) * | 2022-03-08 | 2022-06-10 | 长虹美菱股份有限公司 | Electric valve-based circulating refrigeration system and control method thereof |
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| CN202813915U (en) * | 2012-09-16 | 2013-03-20 | 合肥美菱股份有限公司 | Single-circulation refrigerating system with electric valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1334417A (en) * | 2000-07-26 | 2002-02-06 | 东芝株式会社 | Electric valve and electric refrigerator |
| CN1515851A (en) * | 2003-01-11 | 2004-07-28 | 合肥美菱股份有限公司 | Condenser pressure-retaining energy-saving type refrigeration system for refrigerator |
| CN2811876Y (en) * | 2005-04-27 | 2006-08-30 | 苏州三星电子有限公司 | Air conditioner unloading circulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114608224A (en) * | 2022-03-08 | 2022-06-10 | 长虹美菱股份有限公司 | Electric valve-based circulating refrigeration system and control method thereof |
| CN114608224B (en) * | 2022-03-08 | 2024-04-12 | 长虹美菱股份有限公司 | Circulation refrigerating system based on electric valve and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102840721B (en) | 2014-12-24 |
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