CN108362050A - A kind of double media expansion valve filling systems and method of efficient stable - Google Patents
A kind of double media expansion valve filling systems and method of efficient stable Download PDFInfo
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- CN108362050A CN108362050A CN201810101203.8A CN201810101203A CN108362050A CN 108362050 A CN108362050 A CN 108362050A CN 201810101203 A CN201810101203 A CN 201810101203A CN 108362050 A CN108362050 A CN 108362050A
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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
- F25B45/00—Arrangements for charging or discharging refrigerant
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to the double media expansion valve filling systems and method of a kind of efficient stable,System includes filling tooling,Nitrogen gas tank,Refrigerant tank and vacuum pumping pump,It fills tooling and is equipped with upper top gas cylinder and lower top gas cylinder,Filling chamber seat is equipped between upper top gas cylinder and lower top gas cylinder,Filling chamber seat, which is equipped with, is filled with pipe and uniguide,It is filled on pipe and uniguide and is respectively equipped with shut-off valve and check valve,And end is connected with the first three-way connection,First three-way connection is equipped with first pressure pipe,It is respectively equipped with nitrogen tube on the four-way connection of first pressure pipe,Refrigerant pipe and vacuum tube,Good airproof performance,It is controlled using pipeline,Corresponding gas is poured when can ensure that filling operation,Using vacuumizing filling method twice,It is vacuumized for the second time under shut-off valve closing,Make filling refrigerant pressure,Cold coal amount and gross pressure can reach sets requirement,Ensure that double media are accurately filled with,Reduce automation filling difficulty,Improve the performance of refrigeration equipment.
Description
Technical field
The present invention relates to the double media expansion valve filling systems and method of a kind of efficient stable, belong to refrigeration equipment technology
Field.
Background technology
Expansion valve is filled involved in refrigeration equipment, by control evaporator outlet gaseous refrigerant the degree of superheat come control into
Enter the refrigerant flow of evaporator, throttling of the condensing pressure to evaporating pressure is realized, by the condensed high-temperature high-pressure liquid of condenser
State refrigerant reducing pressure by regulating flow becomes the liquid-vapor mixture for holding evaporable low-temp low-pressure, is evaporated into evaporator, absorbs extraneous heat
Amount；The temperature signal obtained simultaneously according to temperature sensing package or air tank head, controls the flow of refrigerant, and work directly determines entirely system
The work quality of system ensure that, in optimal manner to evaporator feed flow, the degree of superheat of evaporator outlet refrigerant vapour is stablized,
And the crucial application performance of expansion valve of the air box head parts direct relation at the top of expansion valve, it needs to be filled with the nitrogen with system matches
Gas medium and inert gas, requirement when being filled especially for this double media to the amount of pouring are very stringent.
To ensure the duration performance of refrigeration equipment, the requirement to expansion valve filling system is also higher and higher, sealing performance
The often stability of relationship filling quality, such as a kind of thermostatic expansion valve bellows mixing that patent CN206531321U is proposed
Gas charge device, using three solenoid valve blocks at a valve group, then filling chamber top both sides filling is made with O-ring seal
The more compact structure spatial volume smaller of pipeline is directly connect with pressure sensor with filling chamber seat to make second of pumping of cancellation
Vacuum, but it is this by solenoid valve double-direction control after evacuation, be first passed through first medium such as nitrogen, then be passed through second medium
Such as the structural approach of refrigerant, medium back flow can be made when pouring again, can not ensure whether poured corresponding gas, causes to rush
Enter amount and filling gross pressure is also unstable, it is difficult to by set value calculation, substantially increase automation difficulty；
For another example patent CN102305504A provides a kind of thermal expansion valve power head automatic cross filling device, by upper and lower
Upper and lower air cylinders are respectively fixedly connected on cover board, being oriented to sliding using sliding rail ensures stability, so that power head is filled with lower part and fills
It sets and is in sealing state, the air-channel system using this filling device is disclosed, by nitrogen pipeline, refrigerant pipeline, vacuum line
It being connected with blowdown piping, control refrigerant pressure table and nitrogen pressure table before filling adjust refrigerant pressure reducing valve and nitrogen pressure reducing valve,
So that air inlet refrigerant and nitrogen is in stable pressure, then seal inflation part, open vacuum valve and vacuumize, opens and closes valve successively and fill
Nitrogen fills refrigerant, judges vacuum, refrigerant and nitrogen state with the pressure sensor in terminal, and cold with two on refrigerant pipeline
Matchmaker's valve action prevents during filling nitrogen to recoil the problem for causing refrigerant impure in cold media gas, but filling terminates ability
It deflates, system cycle can be influenced by otherwise entering air in pipeline, result in blockage, pipeline is made to generate noise, reduce refrigeration effect, this
Kind structure can still be filled with nitrogen, and when opening nitrogen valve, cold media gas recoil passes back into nitrogen pipeline, and not only nitrogen fills
Pressure transient, when it is big when it is small, cannot be maintained in setting range, and it is unstable to fill cold coal amount, when it is more when few, Bu Nengbao
Hold in setting range, cause to be difficult to ensure the accuracy for the amount of pouring when double media filling, though be further added by a nitrogen valve with
Improve such case, not only valve more control difficulty, cost also higher can not play remarkable result.
Invention content
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of double media expansion valves filling system of efficient stable
System, good airproof performance are controlled using unidirectional pipeline, it can be ensured that corresponding gas are poured when filling operation, using vacuumizing filling twice
Method enables filling refrigerant pressure, cold coal amount and gross pressure to reach sets requirement, ensures that double media are accurately filled with, reduces automatic
Change filling difficulty, improves the performance of refrigeration equipment.
The present invention is achieved by the following technical solutions：
A kind of double media expansion valve filling systems of efficient stable, including filling tooling, nitrogen gas tank, refrigerant tank and vacuum pumping pump,
The filling tooling is equipped with upper top gas cylinder and lower top gas cylinder, and filling chamber seat is equipped between the upper top gas cylinder and lower top gas cylinder,
Wherein, the filling chamber seat is equipped with and is filled with pipe and uniguide, and described be filled on pipe and uniguide is respectively equipped with shut-off valve and list
To valve, and end is connected with the first three-way connection, and first three-way connection is equipped with first pressure pipe, the first pressure pipe
It is equipped with first pressure sensor, and is connected with four-way connection, the filling chamber seat is equipped with second pressure pipe, second pressure
Solenoid is equipped with second pressure sensor；
Nitrogen tube, refrigerant pipe and vacuum tube are respectively equipped between the four-way connection and nitrogen gas tank, refrigerant tank and vacuum pumping pump, by
Nitrogen gas tank is equipped with the first ball valve, the first regulating valve and the first solenoid valve, by cold to four-way connection direction successively in the nitrogen tube
Matchmaker's tank is equipped with the second ball valve, the second regulating valve and second solenoid valve to four-way connection direction successively on the refrigerant pipe, true by taking out
Sky pump is equipped with third ball valve and third solenoid valve to four-way connection direction successively on the vacuum tube.
Double media expansion valve filling systems of above-mentioned a kind of efficient stable, wherein on the upper top gas cylinder and lower top gas cylinder
It is respectively equipped with the first tracheae and the second tracheae, the 4th solenoid valve is equipped on first tracheae and the second tracheae, and end connects
The second three-way connection is connect, second three-way connection is connected with the 4th ball valve and air compressor machine in turn.
A kind of double media expansion valve filling systems of above-mentioned efficient stable, wherein the upper top gas cylinder and filling chamber seat it
Between be equipped with sealing, the sealing section takes the shape of the letter U structure.
A kind of double media expansion valve filling systems of above-mentioned efficient stable, wherein the lower top gas cylinder and filling chamber seat it
Between be equipped with seal receptacle, the first rotating ring and the second rotating ring being provided symmetrically in the seal receptacle, first rotating ring section are in L
Shape structure, and compression spring is equipped between the second rotating ring, stationary ring, the stationary ring are equipped at the top of second rotating ring between seal receptacle
The T-shaped structure in section is equipped with O shapes between first rotating ring and the second rotating ring and lower top gas cylinder, between stationary ring and seal receptacle
Sealing ring.
A kind of double media expansion valves filling method of efficient stable, method are as follows：
（1）Prepare：The variation for observing first pressure sensor, adjusts the first regulating valve and the second control valve opening respectively, controls
Nitrogen flow and cold medium flux, by the top of expansion valve air box head parts and steel ball be placed in filling chamber seat in, open the 4th ball valve,
Air compressor machine is opened, lower top gas cylinder downlink is manipulated through the 4th solenoid valve, seal receptacle is made to be closed to form closed filling with filling chamber seat
Space；
（2）Once vacuumize：The first solenoid valve and second solenoid valve are closed, shut-off valve and third solenoid valve are opened, opens and takes out very
Sky pump carries out a vacuum pumping, after judging that vacuum has reached by first pressure sensor and second pressure sensor, pressurize；
（3）Fill refrigerant：Third solenoid valve is closed, opens the second ball valve, second solenoid valve and check valve, and with the second regulating valve
Cold medium flux is controlled, refrigerant tank is by refrigerant pipe through first pressure pipe and uniguide, and to pipe is filled under check valve control, filling is cold
In matchmaker to air box head parts, until first pressure sensor and second pressure sensor instruction filling pressure reach setting value, close
Check valve, second solenoid valve, the second ball valve and shut-off valve, refrigerant, which pours, to be finished；
（4）Secondary vacuum pumping：Open third solenoid valve, open vacuum pumping pump carry out secondary vacuum pumping operation, will fill tooling it
Refrigerant in outer pipeline is taken out to the greatest extent, after judging that vacuum has reached by first pressure sensor, pressurize；
（5）Inflated with nitrogen：Third solenoid valve is closed, opens the first ball valve, the first solenoid valve and check valve, and with the first regulating valve control
Nitrogen flow processed, nitrogen gas tank by nitrogen tube through first pressure pipe, uniguide check valve control under, to be filled with pipe filling nitrogen extremely
In air box head parts, until first pressure sensor and second pressure sensor instruction filling pressure reach setting value, close unidirectional
Valve, the first solenoid valve and the first ball valve, nitrogen, which pours, to be finished；
（6）Welding：Top gas cylinder rises in control, will fill the air box head parts in chamber seat and is welded with steel ball.
Beneficial effects of the present invention are：
Structure of the invention novelty is compact, reasonable design, using easy to operate, shut-off valve is opened after control once vacuumizes, refrigerant
Using check valve unidirectional pipeline control when being filled with nitrogen sequence, by shut-off valve closing control secondary vacuum pumping, by increasing by the
Two pressure sensors and check valve and connection installation method, since check valve is unidirectionally controlled, to prevent refrigerant return, avoid because
Reflux causes refrigerant to enter nitrogen gas tank through nitrogen tube purity is caused to decline, it is ensured that and pipeline is in vacuum state when filling every time,
To be filled with corresponding medium, filling nitrogen pressure, cold coal amount and gross pressure can reach sets requirement, ensure that double media accurately fill
Enter, additionally use the first tracheae and the second tracheae and control top gas cylinder and lower top gas cylinder operation respectively, it is difficult to reduce automation filling
Degree ensures the sealing performance that chamber seat is filled during filling with sealing and sealing holder structure, to fully improve refrigeration equipment
Performance.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the portions the A schematic enlarged-scale view of Fig. 1.
（In figure, filling tooling 1, nitrogen gas tank 2, refrigerant tank 3 and vacuum pumping pump 4, upper top gas cylinder 5 and lower top gas cylinder 6, filling
Chamber seat 7 is filled with pipe 8 and uniguide 11, shut-off valve 15 and check valve 14, the first three-way connection 29, first pressure pipe 55, the first pressure
Force snesor 13, four-way connection 9, second pressure pipe 56, second pressure sensor 45, nitrogen tube 17, refrigerant pipe 18 and vacuum tube
19, the first ball valve 20, the first regulating valve 23 and the first solenoid valve 24, the second ball valve 25, the second regulating valve 26 and second solenoid valve
27, third ball valve 28 and third solenoid valve 30, the first tracheae 38 and the second tracheae 39, the 4th solenoid valve 40, the second three-way connection
41, the 4th ball valve 42, air compressor machine 43, sealing 31, seal receptacle 32, the first rotating ring 33 and the second rotating ring 34, compression spring 35, stationary ring
36, O-ring seals 37, air box head parts 21 and steel ball 22）.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.
A kind of double media expansion valve filling systems of efficient stable, including filling tooling 1, nitrogen gas tank 2, refrigerant tank 3 and pumping
Vacuum pump 4, the filling tooling 1 is equipped with upper top gas cylinder 5 and lower top gas cylinder 6, between the upper top gas cylinder 5 and lower top gas cylinder 6
Equipped with filling chamber seat 7, wherein the filling chamber seat 7 is equipped with and is filled with pipe 8 and uniguide 11, described to be filled with pipe 8 and uniguide 11
On be respectively equipped with shut-off valve 15 and check valve 14, and end is connected with the first three-way connection 29, on first three-way connection 29
Equipped with first pressure pipe 55, the first pressure pipe 55 is equipped with first pressure sensor 13, and is connected with four-way connection 9, institute
It states filling chamber seat 7 and is equipped with second pressure pipe 56, the second pressure pipe 56 is equipped with second pressure sensor 45；
Be respectively equipped between the four-way connection 9 and nitrogen gas tank 2, refrigerant tank 3 and vacuum pumping pump 4 nitrogen tube 17, refrigerant pipe 18 and
Vacuum tube 19 is equipped with the first ball valve 20, the first regulating valve successively by nitrogen gas tank 2 to 9 direction of four-way connection in the nitrogen tube 17
23 and first solenoid valve 24, it is equipped with the second ball valve 25, the successively by refrigerant tank 3 to 9 direction of four-way connection, on the refrigerant pipe 18
Two regulating valves 26 and second solenoid valve 27 are equipped with the by vacuum pumping pump 4 to 9 direction of four-way connection, on the vacuum tube 19 successively
Three ball valves 28 and third solenoid valve 30；
The first tracheae 38 and the second tracheae 39,38 He of the first tracheae are respectively equipped on the upper top gas cylinder 5 and lower top gas cylinder 6
Be equipped with the 4th solenoid valve 40 on second tracheae 39, and end connects the second three-way connection 41, second three-way connection 41 according to
It is secondary to be connected with the 4th ball valve 42 and air compressor machine 43, it is equipped with sealing 31, the axis between the upper top gas cylinder 5 and filling chamber seat 7
31 sections are sealed to take the shape of the letter U structure；
Seal receptacle 32, first be provided symmetrically in the seal receptacle 32 are equipped between the lower top gas cylinder 6 and filling chamber seat 7
Rotating ring 33 and the second rotating ring 34, the L-shaped structure in 33 section of the first rotating ring, and compression spring 35 is equipped between the second rotating ring 34,
Stationary ring 36 is equipped between second rotating ring, 34 top and seal receptacle 32, the T-shaped structure in 36 section of the stationary ring, described first is dynamic
It is equipped with O-ring seals 37 between ring 33 and the second rotating ring 34 and lower top gas cylinder 6, between stationary ring 36 and seal receptacle 32.
A kind of double media expansion valves filling method of efficient stable, method are as follows：
（1）Prepare：The variation for observing first pressure sensor 13, adjusts the first regulating valve 23 and the second regulating valve 26 is opened respectively
Degree controls nitrogen flow and cold medium flux, by the top of expansion valve air box head parts 21 and steel ball 22 be placed in filling chamber seat 7,
The 4th ball valve 42 is opened, air compressor machine 43 is opened, lower top gas cylinder downlink is manipulated through the 4th solenoid valve 40, makes seal receptacle 32 and filling chamber
Seat 7 is closed and forms closed filling space；
（2）Once vacuumize：The first solenoid valve 24 and second solenoid valve 27 are closed, shut-off valve 15 and third solenoid valve 30 are opened,
It opens vacuum pumping pump 4 and carries out a vacuum pumping, vacuum is judged by first pressure sensor 13 and second pressure sensor 45
After having reached, pressurize；
（3）Fill refrigerant：Third solenoid valve 30 is closed, opens the second ball valve 25, second solenoid valve 27 and check valve 14, and with the
Two regulating valves 26 control cold medium flux, and refrigerant tank 3, through first pressure pipe 55 and uniguide 11, is controlled by refrigerant pipe 18 in check valve 14
It to pipe 8 is filled under system, fills in refrigerant to air box head parts 21, until first pressure sensor 13 and second pressure sensor 45 refer to
Show that filling pressure reaches setting value, closes check valve 14, second solenoid valve 27, the second ball valve 25 and shut-off valve 15, refrigerant pours
It finishes, since check valve 14 is unidirectionally controlled, to prevent refrigerant return, the refrigerant caused by reflux is avoided to enter nitrogen through nitrogen tube 17
Gas tank 2 causes purity to decline；
（4）Secondary vacuum pumping：Third solenoid valve 30 is opened, vacuum pumping pump 4 is opened and carries out secondary vacuum pumping operation, tooling will be filled
Refrigerant except 1 in pipeline is taken out to the greatest extent, after judging that vacuum has reached by first pressure sensor 13, pressurize,；
（5）Inflated with nitrogen：Third solenoid valve 30 is closed, opens the first ball valve 20, the first solenoid valve 24 and check valve 14, and with first
Regulating valve 23 controls nitrogen flow, and nitrogen gas tank 2 is controlled through first pressure pipe 55, uniguide 11 in check valve 14 by nitrogen tube 17
Under, it is filled in nitrogen to air box head parts 21 to pipe 8 is filled with, until first pressure sensor 13 and second pressure sensor 45 indicate
Filling pressure reaches setting value, closes check valve 14, the first solenoid valve 24 and the first ball valve 20, nitrogen, which pours, to be finished；
（6）Welding：Top gas cylinder rises in control, will fill the air box head parts 21 in chamber seat 7 and is welded with steel ball 22.
If multiple filling toolings 1 work at the same time, the 4th solenoid valve 40 can be substituted with air source junction box and manipulated simultaneously, sealing is made
Seat 32 is closed with filling chamber seat 7 and forms closed filling space, in the axial direction of upper top gas cylinder 5, is improved by U-shaped sealing 31
Lower seal performance, by seal receptacle 32 with T shapes stationary ring 36 and O shapes shape sealing ring and the first rotating ring of L-shaped 33 on lower top gas cylinder 6
With the second rotating ring 34 with sealing surface is combined into, medium is effectively prevent to reveal, and makes rotating ring that there is certain floating by compression spring 35
Property, rational face pressure is generated, ensures the good fit of rotating ring and stationary ring 36, rotating ring can be allow to produce after sealing surface wear
Raw axial movement, compensation and the effect of buffering improve mechanical service life and sealing performance.
By increasing second pressure sensor and check valve and connection installation method, since check valve is unidirectionally controlled, to
Refrigerant return is prevented, avoids caused by reflux refrigerant from entering nitrogen gas tank through nitrogen tube and purity is caused to decline, it is ensured that filling every time
Shi Guanlu is in vacuum state, and refrigerant pipe is also in this way, to be filled with corresponding medium, filling nitrogen pressure, cold coal amount and stagnation pressure
Power can reach sets requirement, ensure that double media are accurately filled with.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
Should all it cover within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection domain of claims
Subject to.
Claims (5)
1. a kind of double media expansion valve filling systems of efficient stable, including fill tooling, nitrogen gas tank, refrigerant tank and vacuumize
Pump, the filling tooling are equipped with upper top gas cylinder and lower top gas cylinder, and filling chamber is equipped between the upper top gas cylinder and lower top gas cylinder
Seat, it is characterized in that, the filling chamber seat is equipped with and is filled with pipe and uniguide, and described be filled on pipe and uniguide is respectively equipped with cut-off
Valve and check valve, and end is connected with the first three-way connection, first three-way connection are equipped with first pressure pipe, and described first
Pressure pipe is equipped with first pressure sensor, and is connected with four-way connection, and the filling chamber seat is equipped with second pressure pipe, described
Second pressure pipe is equipped with second pressure sensor；
Nitrogen tube, refrigerant pipe and vacuum tube are respectively equipped between the four-way connection and nitrogen gas tank, refrigerant tank and vacuum pumping pump, by
Nitrogen gas tank is equipped with the first ball valve, the first regulating valve and the first solenoid valve, by cold to four-way connection direction successively in the nitrogen tube
Matchmaker's tank is equipped with the second ball valve, the second regulating valve and second solenoid valve to four-way connection direction successively on the refrigerant pipe, true by taking out
Sky pump is equipped with third ball valve and third solenoid valve to four-way connection direction successively on the vacuum tube.
2. a kind of double media expansion valve filling systems of efficient stable as described in claim 1, it is characterized in that, the upper top gas
It is respectively equipped with the first tracheae and the second tracheae on cylinder and lower top gas cylinder, the 4th electricity is equipped on first tracheae and the second tracheae
Magnet valve, and end connects the second three-way connection, second three-way connection is connected with the 4th ball valve and air compressor machine in turn.
3. a kind of double media expansion valve filling systems of efficient stable as described in claim 1, it is characterized in that, the upper top gas
It is equipped with sealing between cylinder and filling chamber seat, the sealing section takes the shape of the letter U structure.
4. a kind of double media expansion valve filling systems of efficient stable as described in claim 1, it is characterized in that, the lower top gas
Seal receptacle is equipped between cylinder and filling chamber seat, the first rotating ring and the second rotating ring being provided symmetrically in the seal receptacle are described
The first L-shaped structure in rotating ring section, and compression spring is equipped between the second rotating ring, it is set between seal receptacle at the top of second rotating ring
There is a stationary ring, the T-shaped structure in stationary ring section, between first rotating ring and the second rotating ring and lower top gas cylinder, stationary ring and sealing
It is equipped with O-ring seals between seat.
5. a kind of double media expansion valves of efficient stable fill method, it is characterized in that, method is as follows：
（1）Prepare：The variation for observing first pressure sensor, adjusts the first regulating valve and the second control valve opening respectively, controls
Nitrogen flow and cold medium flux, by the top of expansion valve air box head parts and steel ball be placed in filling chamber seat in, open the 4th ball valve,
Air compressor machine is opened, lower top gas cylinder downlink is manipulated through the 4th solenoid valve, seal receptacle is made to be closed to form closed filling with filling chamber seat
Space；
（2）Once vacuumize：The first solenoid valve and second solenoid valve are closed, shut-off valve and third solenoid valve are opened, opens and takes out very
Sky pump carries out a vacuum pumping, after judging that vacuum has reached by first pressure sensor and second pressure sensor, pressurize；
（3）Fill refrigerant：Third solenoid valve is closed, opens the second ball valve, second solenoid valve and check valve, and with the second regulating valve
Cold medium flux is controlled, refrigerant tank is by refrigerant pipe through first pressure pipe and uniguide, and to pipe is filled under check valve control, filling is cold
In matchmaker to air box head parts, until first pressure sensor and second pressure sensor instruction filling pressure reach setting value, close
Check valve, second solenoid valve, the second ball valve and shut-off valve, refrigerant, which pours, to be finished；
（4）Secondary vacuum pumping：Open third solenoid valve, open vacuum pumping pump carry out secondary vacuum pumping operation, will fill tooling it
Refrigerant in outer pipeline is taken out to the greatest extent, after judging that vacuum has reached by first pressure sensor, pressurize；
（5）Inflated with nitrogen：Third solenoid valve is closed, opens the first ball valve, the first solenoid valve and check valve, and with the first regulating valve control
Nitrogen flow processed, nitrogen gas tank by nitrogen tube through first pressure pipe, uniguide check valve control under, to be filled with pipe filling nitrogen extremely
In air box head parts, until first pressure sensor and second pressure sensor instruction filling pressure reach setting value, close unidirectional
Valve, the first solenoid valve and the first ball valve, nitrogen, which pours, to be finished；
（6）Welding：Top gas cylinder rises in control, will fill the air box head parts in chamber seat and is welded with steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101203.8A CN108362050A (en) | 2018-02-01 | 2018-02-01 | A kind of double media expansion valve filling systems and method of efficient stable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101203.8A CN108362050A (en) | 2018-02-01 | 2018-02-01 | A kind of double media expansion valve filling systems and method of efficient stable |
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| Publication Number | Publication Date |
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| CN108362050A true CN108362050A (en) | 2018-08-03 |
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ID=63004297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810101203.8A Pending CN108362050A (en) | 2018-02-01 | 2018-02-01 | A kind of double media expansion valve filling systems and method of efficient stable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341163A (en) * | 2018-10-11 | 2019-02-15 | 珠海格力智能装备有限公司 | Evaporator production equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08303910A (en) * | 1995-05-12 | 1996-11-22 | Touou Kogyo Kk | Refrigerant charging device |
| CN102305504A (en) * | 2011-08-02 | 2012-01-04 | 中国计量学院 | Automatic cross filling device and filling method of thermostatic expansion valve power head |
| CN102538326A (en) * | 2011-12-28 | 2012-07-04 | 中国计量学院 | Automatic liquid mixing and filling system for commercial thermal expansion valve and automatic liquid mixing and filling method for same |
| CN103388943A (en) * | 2013-07-29 | 2013-11-13 | 浙江金丰机械设备有限公司 | Method and equipment for filling liquid in temperature sensing bulb of thermostatic expansion valve |
| CN206531321U (en) * | 2016-12-12 | 2017-09-29 | 浙江春晖智能控制股份有限公司 | A kind of thermostatic expansion valve bellows mixed gas filling device |
| CN208332776U (en) * | 2018-02-01 | 2019-01-04 | 泰州市泰奥利诺制冷设备有限公司 | A kind of double media expansion valve filling systems of efficient stable |
-
2018
- 2018-02-01 CN CN201810101203.8A patent/CN108362050A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08303910A (en) * | 1995-05-12 | 1996-11-22 | Touou Kogyo Kk | Refrigerant charging device |
| CN102305504A (en) * | 2011-08-02 | 2012-01-04 | 中国计量学院 | Automatic cross filling device and filling method of thermostatic expansion valve power head |
| CN102538326A (en) * | 2011-12-28 | 2012-07-04 | 中国计量学院 | Automatic liquid mixing and filling system for commercial thermal expansion valve and automatic liquid mixing and filling method for same |
| CN103388943A (en) * | 2013-07-29 | 2013-11-13 | 浙江金丰机械设备有限公司 | Method and equipment for filling liquid in temperature sensing bulb of thermostatic expansion valve |
| CN206531321U (en) * | 2016-12-12 | 2017-09-29 | 浙江春晖智能控制股份有限公司 | A kind of thermostatic expansion valve bellows mixed gas filling device |
| CN208332776U (en) * | 2018-02-01 | 2019-01-04 | 泰州市泰奥利诺制冷设备有限公司 | A kind of double media expansion valve filling systems of efficient stable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341163A (en) * | 2018-10-11 | 2019-02-15 | 珠海格力智能装备有限公司 | Evaporator production equipment |
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Application publication date: 20180803 |