CN105737460A - Household refrigerator multi-stage throttling refrigerating system - Google Patents
Household refrigerator multi-stage throttling refrigerating system Download PDFInfo
- Publication number
- CN105737460A CN105737460A CN201610171582.9A CN201610171582A CN105737460A CN 105737460 A CN105737460 A CN 105737460A CN 201610171582 A CN201610171582 A CN 201610171582A CN 105737460 A CN105737460 A CN 105737460A
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- China
- Prior art keywords
- capillary tube
- capillary
- liquid outlet
- compressor
- valve body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000005057 refrigeration Methods 0.000 claims description 19
- 230000037361 pathway Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 239000006200 vaporizer Substances 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 description 29
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000001704 evaporation Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 208000036366 Sensation of pressure Diseases 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a household refrigerator multi-stage throttling refrigerating system. The household refrigerator multi-stage throttling refrigerating system comprises a compressor, a condenser, a first capillary tube and an evaporator which are connected in sequence, and the system further comprises a second capillary tube and a third capillary tube. The first capillary tube, the second capillary tube and the third capillary tube are connected in parallel, and overpressure connecting valves are installed in front of a liquid inlet of the second capillary tube and a liquid inlet of the third capillary tube. Throttling is automatically adjusted through the three capillary tubes, so that the flow of a liquid refrigerating agent is adjusted and controlled more effectively, and the proper functional characteristics of a variable frequency refrigerator are improved.
Description
Technical field
The invention discloses a kind of domestic refrigerator multi-level throttle refrigeration system.
Background technology
Refrigeration system in refrigerator is mainly made up of compressor, condenser, throttling arrangement (capillary tube) and vaporizer, be in refrigeration systems by compressor by cold-producing medium by low-temp low-pressure gaseous refrigerant, compressed become high temperature and high pressure gaseous refrigerant, high pressure liquid refrigerant is become subsequently into after condenser heat radiation condensation, enter back into throttling arrangement and carry out reducing pressure by regulating flow process, finally enter vaporizer vaporization absorption heat, liquid become gaseous state, so form kind of refrigeration cycle.Described refrigeration system, control refrigeration system temperature and first have to control at pressure corresponding to different conditions, because temperature and pressure is one to one, need certain condensing pressure in refrigeration system and obtain more particularly suitable evaporating pressure by reducing pressure by regulating flow, it is so that the liquid supply rate to vaporizer carries out throttling control so that it is the liquid refrigerant keeping appropriate supplies, and makes evaporator heat exchange play a role, and to keep appropriate liquid refrigerant, just need throttling arrangement to complete.nullPresent frequency conversion refrigerator compressor is mainly by converter technique means，The fixing mains frequency of 50HZ is changed into the change frequency of 30 to 130HZ，The rotating speed of frequency conversion refrigerator compressor is changed by changing frequency，Along with the rotating speed of frequency-changeable compressor improves，The capacity of compressor changes，The low frequency state refrigerating capacity making freezer compressor brings up to altofrequency state refrigerating capacity，But，Present frequency conversion domestic refrigerator also adopts the same throttle style with common fixed frequency refrigerator，Only one of which throttling arrangement (capillary tube) reducing pressure by regulating flow，Thus affecting the due characteristic of frequency conversion refrigerator compressor，Mainly obtain more particularly suitable evaporating pressure by reducing pressure by regulating flow because needing certain condensing pressure in refrigeration system，If condensing pressure is too low，Owing to the too small meeting of height pressure reduction causes that refrigerant flow is not enough，Evaporating temperature can raise，Run thus affecting whole refrigeration system，Therefore refrigeration system to find a best condensing pressure and evaporating pressure particularly important.
Summary of the invention
It is an object of the invention to provide a kind of domestic refrigerator multi-level throttle refrigeration system, the size of liquid refrigerant flow can be automatically adjusted because of the change with frequency conversion freezer compressor rotating speed, obtain liquid refrigerant the best condensing pressure and vapor pres-sure force value, it is thus possible to better adapt to various operating mode needs complicated and changeable in refrigeration system.
In order to reach above-mentioned purpose, the solution of the present invention is:
A kind of domestic refrigerator multi-level throttle refrigeration system, including the compressor being connected in turn, condenser, first capillary tube, vaporizer, present invention additionally comprises the second capillary tube, three capillary, described first capillary tube, second capillary tube, three capillary setting parallel with one another, wherein before the inlet of the second capillary tube and three capillary, superpressure conducting valve is all installed, described superpressure conducting valve includes valve body, it is arranged on the sealing lid on valve body, it is provided with spring base between lid and valve body sealing, spring base has spring, spring is connected to spool, there is in described valve body feed pathway and liquid outlet channel, described spool is placed in the liquid outlet of feed pathway, the liquid outlet that can be opened or close feed pathway by spool makes feed pathway and liquid outlet channel communicate or disconnect.
Further setting as such scheme: described sealing has seal membrane between lid and spring base, can be further ensured that between sealing lid and valve body to be in sealing state by seal membrane.
Described sealing is covered with trimming bolt, can be finely tuned the position of spring base by trimming bolt.
After adopting said structure, the capillary total flow that the present invention throttles former domestic refrigerator is divided into three capillary parallel connection throttlings, can with frequency conversion thermoacoustic refrigerator payload, the rotating speed height of compressor, the size of capacity, cold-producing medium size, it is automatically adjusted throttling by three capillaries, more effectively regulable control liquid refrigerant flow, obtains liquid refrigerant the best condensing pressure and vapor pres-sure force value, improves the due functional characteristic efficiency of frequency conversion refrigerator.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of superpressure conducting valve of the present invention.
Detailed description of the invention
nullAs shown in Figure 1，A kind of domestic refrigerator multi-level throttle refrigeration system，Including the compressor 1 being connected in turn、Condenser 2、First capillary tube 3、Vaporizer 4，Present invention additionally comprises the second capillary tube 5、Three capillary 6，Described first capillary tube 3、Second capillary tube 5、Three capillary 6 setting parallel with one another，Wherein before the inlet of the second capillary tube 5 and three capillary 6, superpressure conducting valve 7 is all installed，Described superpressure conducting valve 7 includes valve body 8，It is arranged on the sealing lid 9 on valve body 8，It is provided with spring base 10 between lid 9 and valve body 8 sealing，Spring base 10 has spring 11，Spring 11 is connected to spool 12，There is in described valve body 8 feed pathway 13 and liquid outlet channel 14，Described spool 12 is placed in the liquid outlet of feed pathway 13，The liquid outlet that can be opened or close feed pathway 13 by spool 12 makes feed pathway 13 and liquid outlet channel 14 communicate or disconnect；Described sealing has seal membrane 15 between lid 9 and spring base 10, the described lid 9 that seals is provided with trimming bolt 16, can be finely tuned the position of spring base 10 by trimming bolt 16.
Operation principle of the present invention: adopt Based Intelligent Control, condensing pressure and the vapor pres-sure force value of the best is reached for the cold-producing medium in refrigeration system can be obtained, superpressure conducting valve 7 is set up before the second capillary tube 5, three capillary 6 inlet, when frequency conversion refrigerator compressor 1 is when low-frequency operation, because compressor 1 rotating speed is low, discharge capacity is little, and condensing pressure is low, and liquid refrigerant enters vaporizer 4 evaporation endothermic through the first capillary tube 3；When in refrigerator, thermic load improves, compressor 1 running frequency and rotating speed and then improve, compressor 1 discharge capacity increases, refrigerant flow increases, and now by the flow restriction of the first capillary tube 3, refrigerant pressure raises, reach the limit value of the superpressure conducting valve 7 before opening the second capillary tube 5, a part of liquid refrigerant, through superpressure conducting valve 7, enters vaporizer 4 evaporation endothermic from the second capillary tube 5, it is ensured that vaporizer 4 liquid refrigerant is supplied；When the thermic load in refrigerator improves again, compressor 1 running frequency and rotating speed also and then improve again, cold-producing medium discharge capacity also increases therewith, liquid refrigerant is affected by the first capillary tube 3 and the second capillary tube 5 flow restriction, pressure raises again, when reaching the limit value of the superpressure conducting valve 7 before opening three capillary 6, liquid refrigerant is respectively through the first capillary tube 3, second capillary tube 5, liquid refrigerant is carried out reducing pressure by regulating flow process by three capillary 6, hence into vaporizer 4 evaporation endothermic, so this invention ensures that and enter refrigerant amount certain in vaporizer 4, ensure that the condensing pressure of liquid refrigerant the best and vapor pres-sure force value, improve the due functional characteristic efficiency of frequency conversion refrigerator.When frequency conversion refrigerator thermic load reduces, compressor 1 frequency and rotating speed reduce, capacity reduces, refrigerant flow and pressure decrease, superpressure conducting valve before three capillary the 6, second capillary tube 5 will be closed with level, and frequency conversion refrigerator finally can be made properly functioning under low frequency conversion and slow-speed of revolution power save mode.
Being turned on or off of superpressure conducting valve 7 of the present invention is realized in, when in frequency conversion refrigerator, thermic load needs to improve, frequency-changeable compressor frequency and rotating speed improve, compressor 1 discharge capacity increases, refrigerant flow increases, when refrigerant pressure increases to over the setting value of superpressure conducting valve 7, liquid refrigerant pressure effect is more than the elastic force loaded on spool 12 spring 11, then spool 12 leaves the liquid outlet in feed pathway 13, liquid refrigerant flows to liquid outlet channel 14 through liquid outlet, finally enters vaporizer 4 through capillary tube.If conversion frequencies reduces, frequency-changeable compressor rotating speed reduces with frequency and reduces, liquid refrigerant reduces therewith, when refrigerant pressure reduces, spool 12 pressure above is pressed on less than spring 11 for the pressure on spool 12, spool 12 presses the liquid outlet in feed pathway 13, and liquid refrigerant stops circulation, thus can be automatically adjusted liquid refrigerant flow according to frequency-changeable compressor frequency and rotation speed change.
Claims (3)
1. a domestic refrigerator multi-level throttle refrigeration system, including the compressor being connected in turn, condenser, first capillary tube, vaporizer, it is characterized in that: also include the second capillary tube, three capillary, described first capillary tube, second capillary tube, three capillary setting parallel with one another, wherein before the inlet of the second capillary tube and three capillary, superpressure conducting valve is all installed, described superpressure conducting valve includes valve body, it is arranged on the sealing lid on valve body, it is provided with spring base between lid and valve body sealing, spring base has spring, spring is connected to spool, there is in described valve body feed pathway and liquid outlet channel, described spool is placed in the liquid outlet of feed pathway, the liquid outlet that can be automatically opened up or close feed pathway by spool makes feed pathway and liquid outlet channel communicate or disconnect.
2. a kind of domestic refrigerator multi-level throttle refrigeration system according to claim 1, it is characterised in that: described sealing has seal membrane between lid and spring base.
3. a kind of domestic refrigerator multi-level throttle refrigeration system according to claim 1, it is characterised in that: described sealing is covered with trimming bolt, can be finely tuned the position of spring base by trimming bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171582.9A CN105737460A (en) | 2016-03-20 | 2016-03-20 | Household refrigerator multi-stage throttling refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171582.9A CN105737460A (en) | 2016-03-20 | 2016-03-20 | Household refrigerator multi-stage throttling refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105737460A true CN105737460A (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610171582.9A Pending CN105737460A (en) | 2016-03-20 | 2016-03-20 | Household refrigerator multi-stage throttling refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105737460A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595126A (en) * | 2016-12-16 | 2017-04-26 | 广东美的暖通设备有限公司 | Outdoor unit control system, heat pump unit and control method thereof |
| CN109059411A (en) * | 2018-08-30 | 2018-12-21 | Tcl家用电器（合肥）有限公司 | Refrigerator and its control method, control device, readable storage medium storing program for executing |
| CN111550939A (en) * | 2020-05-13 | 2020-08-18 | 吉林大学 | Variable working condition refrigeration cycle system and control method thereof |
| CN111780488A (en) * | 2020-06-23 | 2020-10-16 | 珠海格力电器股份有限公司 | Compressor control method and device capable of effectively adjusting rotating speed and refrigeration equipment |
| CN114484971A (en) * | 2020-11-11 | 2022-05-13 | 合肥海尔电冰箱有限公司 | Air-cooled refrigerator and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949692Y (en) * | 2006-07-03 | 2007-09-19 | 戴右铭 | Self-forcing fluid pressure regulating valve |
| CN201934763U (en) * | 2010-11-26 | 2011-08-17 | 嵊州市金豪制冷设备有限公司 | Inspiratory capacity adjusting valve of volumetric refrigeration compressor |
| CN202947389U (en) * | 2012-12-12 | 2013-05-22 | 黄石东贝制冷有限公司 | Frequency conversion refrigerator refrigerating device capable of regulating refrigerating capacity automatically |
| CN103322681A (en) * | 2013-07-08 | 2013-09-25 | 浙江正理生能科技有限公司 | Heat-pump water heater cold shielding system for protecting compressor |
| CN203823205U (en) * | 2014-03-03 | 2014-09-10 | 西安航天动力试验技术研究所 | High-pressure pneumatic cut-off valve |
| CN205619634U (en) * | 2016-03-20 | 2016-10-05 | 浙江迪贝电气股份有限公司 | Multistage throttle refrigerating system of domestic refrigerator |
-
2016
- 2016-03-20 CN CN201610171582.9A patent/CN105737460A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949692Y (en) * | 2006-07-03 | 2007-09-19 | 戴右铭 | Self-forcing fluid pressure regulating valve |
| CN201934763U (en) * | 2010-11-26 | 2011-08-17 | 嵊州市金豪制冷设备有限公司 | Inspiratory capacity adjusting valve of volumetric refrigeration compressor |
| CN202947389U (en) * | 2012-12-12 | 2013-05-22 | 黄石东贝制冷有限公司 | Frequency conversion refrigerator refrigerating device capable of regulating refrigerating capacity automatically |
| CN103322681A (en) * | 2013-07-08 | 2013-09-25 | 浙江正理生能科技有限公司 | Heat-pump water heater cold shielding system for protecting compressor |
| CN203823205U (en) * | 2014-03-03 | 2014-09-10 | 西安航天动力试验技术研究所 | High-pressure pneumatic cut-off valve |
| CN205619634U (en) * | 2016-03-20 | 2016-10-05 | 浙江迪贝电气股份有限公司 | Multistage throttle refrigerating system of domestic refrigerator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595126A (en) * | 2016-12-16 | 2017-04-26 | 广东美的暖通设备有限公司 | Outdoor unit control system, heat pump unit and control method thereof |
| CN106595126B (en) * | 2016-12-16 | 2019-12-20 | 广东美的暖通设备有限公司 | Outer unit control system, heat pump unit and control method thereof |
| CN109059411A (en) * | 2018-08-30 | 2018-12-21 | Tcl家用电器（合肥）有限公司 | Refrigerator and its control method, control device, readable storage medium storing program for executing |
| CN111550939A (en) * | 2020-05-13 | 2020-08-18 | 吉林大学 | Variable working condition refrigeration cycle system and control method thereof |
| CN111780488A (en) * | 2020-06-23 | 2020-10-16 | 珠海格力电器股份有限公司 | Compressor control method and device capable of effectively adjusting rotating speed and refrigeration equipment |
| CN114484971A (en) * | 2020-11-11 | 2022-05-13 | 合肥海尔电冰箱有限公司 | Air-cooled refrigerator and control method thereof |
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