CN205619634U - Multistage throttle refrigerating system of domestic refrigerator - Google Patents
Multistage throttle refrigerating system of domestic refrigerator Download PDFInfo
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- CN205619634U CN205619634U CN201620231030.8U CN201620231030U CN205619634U CN 205619634 U CN205619634 U CN 205619634U CN 201620231030 U CN201620231030 U CN 201620231030U CN 205619634 U CN205619634 U CN 205619634U
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- capillary
- capillary tube
- valve body
- domestic refrigerator
- feed pathway
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Abstract
The utility model discloses a multistage throttle refrigerating system of domestic refrigerator, including connect gradually compressor, condenser, first capillary, evaporimeter together, the utility model discloses still include second capillary, third capillary, first capillary, second capillary, third capillary be parallelly connected the setting each other, wherein all installs the superpressure before the inlet of second capillary and third capillary and switches on the valve. The utility model discloses a three root hair tubule automatically regulated throttle, regulation control liquid refrigerant flow has improved the due functional characteristics efficiency of frequency conversion refrigerator more effectively.
Description
Technical field
The utility model discloses a kind of domestic refrigerator multi-level throttle refrigeration system.
Background technology
Refrigeration system in refrigerator is mainly by compressor, condenser, throttling arrangement (capillary tube)
With vaporizer form, be in refrigeration systems by compressor by cold-producing medium by low-temp low-pressure gaseous state system
Cryogen, compressed becomes high temperature and high pressure gaseous refrigerant, after condenser heat radiation condensation
Become high pressure liquid refrigerant, enter back into throttling arrangement and carry out reducing pressure by regulating flow process, finally enter
Vaporizer vaporization absorption heat, is become gaseous state by liquid, so forms kind of refrigeration cycle.Described system
Cooling system, refrigeration system temperature to be controlled first has to control at pressure corresponding to different conditions, because of
It is one to one for temperature and pressure, needs certain condensing pressure in refrigeration system and pass through
Reducing pressure by regulating flow obtains more particularly suitable evaporating pressure, is so that the liquid supply rate to vaporizer is carried out
Throttling controls 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.Present frequency conversion refrigerator
Compressor mainly by converter technique means, the fixing mains frequency of 50HZ change into 30 to
The change frequency of 130HZ, changes the rotating speed of frequency conversion refrigerator compressor by changing frequency, with
The rotating speed frequency-changeable compressor improves, and the capacity of compressor changes, and makes freezer compressor
Low frequency state refrigerating capacity bring up to altofrequency state refrigerating capacity, but, present frequency conversion man
Throttle style as also using with common fixed frequency refrigerator with refrigerator, only one of which throttling arrangement
(capillary tube) reducing pressure by regulating flow, thus affect the due characteristic of frequency conversion refrigerator compressor, mainly
Obtained more particularly suitable by reducing pressure by regulating flow because needing certain condensing pressure in refrigeration system
Evaporating pressure, if condensing pressure is too low, owing to the too small meeting of height pressure reduction causes cold-producing medium stream
Amount deficiency, evaporating temperature can raise, thus affect whole refrigeration system and run, therefore to refrigeration
To find an optimal condensing pressure and evaporating pressure particularly important for system.
Utility model content
The purpose of this utility model is to provide a kind of domestic refrigerator multi-level throttle refrigeration system, energy
The big of liquid refrigerant flow can be automatically adjusted because of the change with frequency conversion freezer compressor rotating speed
Little, obtain the optimal condensing pressure of liquid refrigerant and vapor pres-sure force value, it is thus possible to the suitableeest
Various operating mode needs complicated and changeable in answering refrigeration system.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of domestic refrigerator multi-level throttle refrigeration system, including the compression being connected in turn
Machine, condenser, the first capillary tube, vaporizer, this utility model also include the second capillary tube,
Three capillary, described first capillary tube, the second capillary tube, three capillary is parallel with one another sets
Put, wherein before the inlet of the second capillary tube and three capillary, superpressure conducting valve be all installed,
Described superpressure conducting valve includes valve body, the sealing lid being arranged on valve body, is sealing lid and valve body
Between be provided with spring base, spring base has spring, spring connects spool, described valve body
Inside having feed pathway and liquid outlet channel, described spool is placed in the liquid outlet of feed pathway, passes through
Spool can open or close the liquid outlet of feed pathway make feed pathway and liquid outlet channel communicate or
Disconnect.
Further setting as such scheme: described sealing has sealing between lid and spring base
Diaphragm, can be further ensured that between sealing lid and valve body by seal membrane and be in sealing state.
Described sealing is covered with trimming bolt, can be finely tuned the position of spring base by trimming bolt.
After using said structure, the capillary that this utility model throttles former domestic refrigerator
Total flow is divided into three capillary parallel connection throttlings, can be with frequency conversion thermoacoustic refrigerator payload, compressor
Rotating speed height, the size of capacity, cold-producing medium size, be automatically adjusted by three capillaries
Throttling, more effectively regulation controls liquid refrigerant flow, has obtained liquid refrigerant the coldest
Solidifying pressure and vapor pres-sure force value, improve frequency conversion refrigerator due functional characteristic efficiency.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model superpressure conducting valve.
Detailed description of the invention
As it is shown in figure 1, a kind of domestic refrigerator multi-level throttle refrigeration system, including being connected in turn
Compressor 1 together, condenser the 2, first capillary tube 3, vaporizer 4, this utility model is also
Including the second capillary tube 5, three capillary 6, described first capillary tube the 3, second capillary tube 5,
Three capillary 6 setting parallel with one another, wherein the entering of the second capillary tube 5 and three capillary 6
All being provided with superpressure conducting valve 7 before liquid mouth, described superpressure conducting valve 7 includes valve body 8, installs
Sealing lid 9 on valve body 8, is provided with spring base 10 sealing between lid 9 and valve body 8,
Having spring 11 on spring base 10, spring 11 connects spool 12, tool in described valve body 8
Have what feed pathway 13 and liquid outlet channel 14, described spool 12 be placed in feed pathway 13 to go out liquid
Mouthful, the liquid outlet that can be opened or close feed pathway 13 by spool 12 makes feed pathway 13
Communicate with liquid outlet channel 14 or disconnect；Described sealing has sealing between lid 9 and spring base 10
Diaphragm 15, the described lid 9 that seals is provided with trimming bolt 16, can be finely tuned by trimming bolt 16
The position of spring base 10.
Utility model works principle: use Based Intelligent Control, for the system in refrigeration system can be obtained
Cryogen reaches optimal condensing pressure and vapor pres-sure force value, in the second capillary tube the 5, the 3rd capillary
Superpressure conducting valve 7 is set up before pipe 6 inlet, when frequency conversion refrigerator compressor 1 is at low-frequency operation,
Because compressor 1 rotating speed is low, discharge capacity is little, and condensing pressure is low, and liquid refrigerant is through the first capillary tube
3 enter vaporizer 4 evaporation endothermic；When in refrigerator, thermic load improves, compressor 1 runs frequency
Rate and rotating speed and then improve, and compressor 1 discharge capacity increases, and refrigerant flow increases, now by the
The flow restriction of one capillary tube 3, refrigerant pressure raises, before reaching to open the second capillary tube 5
The limit value of superpressure conducting valve 7, a part of liquid refrigerant is through superpressure conducting valve 7, from
Two capillary tubies 5 enter vaporizer 4 evaporation endothermic, it is ensured that supply vaporizer 4 liquid refrigerant
Give；When the thermic load in refrigerator improves again, compressor 1 running frequency and rotating speed the most again with
Raising, cold-producing medium discharge capacity increases the most therewith, and liquid refrigerant is by the first capillary tube 3 and second
Capillary tube 5 flow restriction affects, and pressure raises again, before reaching to open three capillary 6
During the limit value of superpressure conducting valve 7, liquid refrigerant is respectively through 3, second mao of the first capillary tube
Tubule 5, three capillary 6 carry out reducing pressure by regulating flow process to liquid refrigerant, hence into steaming
Sending out device 4 evaporation endothermic, such this utility model ensure that refrigeration certain in entering vaporizer 4
Dosage, it is ensured that condensing pressure that liquid refrigerant is optimal and vapor pres-sure force value, improves frequency conversion
Refrigerator due functional characteristic efficiency.When frequency conversion refrigerator thermic load reduces, compressor 1 frequency
And rotating speed reduces, capacity reduces, and refrigerant flow and pressure decrease, three capillary
6, the superpressure conducting valve before the second capillary tube 5 will be closed with level, and frequency conversion refrigerator finally can be made to exist
Under low frequency conversion and slow-speed of revolution power save mode properly functioning.
Being turned on or off of this utility model superpressure conducting valve 7 is achieved in that when frequency conversion ice
When in case, thermic load needs to improve, frequency-changeable compressor frequency and rotating speed improve, compressor 1 discharge capacity
Increasing, refrigerant flow increases, and refrigerant pressure increases to over the setting value of superpressure conducting valve 7
Time, liquid refrigerant pressure effect is more than loading on the elastic force on spool 12 spring 11, then
Spool 12 leaves the liquid outlet in feed pathway 13, and liquid refrigerant flows to out liquid through liquid outlet
Passage 14, finally enters vaporizer 4 through capillary tube.If conversion frequencies reduces, frequency conversion is compressed
Machine rotating speed reduces with frequency and reduces, and liquid refrigerant reduces therewith, when refrigerant pressure reduces,
Pressure on spool 12 presses on the pressure above spool 12, spool less than spring 11
12 press the liquid outlet in feed pathway 13, and liquid refrigerant stops circulation, thus can
It is 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 pressure being connected in turn
Contracting machine, condenser, the first capillary tube, vaporizer, it is characterised in that: also include the second capillary
Pipe, three capillary, described first capillary tube, the second capillary tube, three capillary are the most also
Connection is arranged, and is wherein all provided with superpressure conducting before the inlet of the second capillary tube and three capillary
Valve, described superpressure conducting valve includes valve body, the sealing lid being arranged on valve body, seal lid with
Being provided with spring base between valve body, spring base has spring, spring connects spool, described
Having feed pathway and liquid outlet channel in valve body, described spool is placed in the liquid outlet of feed pathway,
Can automatically open up or close the liquid outlet of feed pathway by spool make feed pathway and go out liquid and lead to
Road communicates or disconnects.
A kind of domestic refrigerator multi-level throttle refrigeration system the most according to claim 1, its
It is characterised by: described sealing has seal membrane between lid and spring base.
A kind of domestic refrigerator multi-level throttle refrigeration system the most according to claim 1, its
It is characterised by: described sealing is covered with trimming bolt, spring base can be finely tuned by trimming bolt
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231030.8U CN205619634U (en) | 2016-03-20 | 2016-03-20 | Multistage throttle refrigerating system of domestic refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231030.8U CN205619634U (en) | 2016-03-20 | 2016-03-20 | Multistage throttle refrigerating system of domestic refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205619634U true CN205619634U (en) | 2016-10-05 |
Family
ID=57032656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620231030.8U Active CN205619634U (en) | 2016-03-20 | 2016-03-20 | Multistage throttle refrigerating system of domestic refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205619634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737460A (en) * | 2016-03-20 | 2016-07-06 | 浙江迪贝电气股份有限公司 | Household refrigerator multi-stage throttling refrigerating system |
| CN112797677A (en) * | 2021-01-26 | 2021-05-14 | 青岛海尔空调电子有限公司 | Apparatus and method for selecting capillary tube for refrigeration system |
-
2016
- 2016-03-20 CN CN201620231030.8U patent/CN205619634U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737460A (en) * | 2016-03-20 | 2016-07-06 | 浙江迪贝电气股份有限公司 | Household refrigerator multi-stage throttling refrigerating system |
| CN112797677A (en) * | 2021-01-26 | 2021-05-14 | 青岛海尔空调电子有限公司 | Apparatus and method for selecting capillary tube for refrigeration system |
| CN112797677B (en) * | 2021-01-26 | 2023-08-15 | 青岛海尔空调电子有限公司 | Device and method for selecting capillary tube for refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |