CN206291558U - A kind of refrigerant purification device - Google Patents
A kind of refrigerant purification device Download PDFInfo
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- CN206291558U CN206291558U CN201621358749.4U CN201621358749U CN206291558U CN 206291558 U CN206291558 U CN 206291558U CN 201621358749 U CN201621358749 U CN 201621358749U CN 206291558 U CN206291558 U CN 206291558U
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Abstract
A kind of refrigerant purification device, including container, for holding refrigerant；Pressure sensor, on container, for the pressure in detection container；Temp probe, on container, for detecting refrigerant temperature；Exhaust outlet, on container, for discharging the gas in container；Exhaust outlet connects air bleeding valve by pipeline；Charging/discharging opening, on container, for adding refrigerant in container or isolate the refrigerant of vaporization；Charging/discharging opening is also sequentially connected device for drying and filtering and refrigeration unit through charging/outlet valve；Sewage draining exit, located at the bottom of container, for discharging impurity, sewage draining exit connects blowoff valve by pipeline.On the one hand the utility model can improve the rate of recovery of refrigerant；On the other hand, can thoroughly removal of impurities, and refrigerant will not be lost, save material, substantially reduce production cost.
Description
Technical field
The utility model is related to refrigerant-recovery to utilize technology, particularly a kind of refrigerant purification device.
Background technology
When refrigeration unit is when scrapping, safeguarding or occurring the phenomenons such as accident, refrigerant is often reclaimed.But return
The refrigerant of receipts will bring problems with：
1. the refrigerant for reclaiming usually contains grease or other liquid, and influence heat exchange makes thermal conversion efficiency low；
2. the refrigerant for reclaiming usually contains mechanical admixture, can block expansion valve, machine set filter, or even damage compression
Machine；
3. the refrigerant for reclaiming usually contains moisture, and ice can be produced to block up, or blocks expansion valve, machine set filter etc., very
Reacted to refrigerant, produce acidic materials and corrode unit；
4. the refrigerant for reclaiming usually contains air, can cause evaporator, condenser cannot normal output and efficiency decline,
Even unit superpressure causes other accidents to occur.
Utility model content
The purpose of this utility model is to overcome the above-mentioned not enough of prior art and provide a kind of good purification, the rate of recovery
Height, cost-effective refrigerant purification device.
The technical solution of the utility model is：A kind of refrigerant purification device, including：
Container, for holding refrigerant；
Pressure sensor, on container, for the pressure in detection container；
Temp probe, on container, for detecting refrigerant temperature；
Exhaust outlet, on container, for discharging the gas in container；Exhaust outlet connects air bleeding valve by pipeline；
Charging/discharging opening, on container, for adding refrigerant in container or isolate the refrigerant of vaporization；
Charging/discharging opening is also sequentially connected device for drying and filtering and refrigeration unit through charging/outlet valve；
Sewage draining exit, located at the bottom of container, for discharging impurity, sewage draining exit connects blowoff valve by pipeline.
Further, also including controller, for controlling air bleeding valve, charging/outlet valve, blowoff valve to be turned on and off, with
And the container pressure for pressure sensor to be detected makes comparisons to control each valve event with the theoretical pressure value of container.
Further, the device for drying and filtering includes housing, and the both sides of housing are respectively intake screen and outlet filter screen, housing
Interior that end cap is additionally provided with housing filled with drier, end cap is Demountable, is sealed by between seal and housing.
Further, the drier is particle silica gel, molecular sieve, activated alumina, activated carbon and its any mixture.
Further, the aperture of the aperture less than or equal to intake screen of the outlet filter screen.
Further, the particle diameter of the aperture less than drier of the intake screen and outlet filter screen.
Further, the aperture of the intake screen and/or outlet filter screen is 40 ~ 120 mesh.
The beneficial effects of the utility model：
（1）Temperature and pressure value comparison table of the utility model according to corresponding to refrigerant excludes air, clean-up effect
It is good, and refrigerant will not be lost；
（2）By first excluding air, then it is vaporized by refrigerant, dried and is filtered and reclaim refrigerant, a side
Face can improve the rate of recovery of refrigerant；On the other hand, can thoroughly removal of impurities, and refrigerant will not be lost, save material, significantly
Reduce production cost；
（3）The structure design of device for drying and filtering can thoroughly filter the impurity in refrigerant, in case the refrigerant of vaporization is taken
Impurity with some bulky grains enters refrigerant group, and greatly improves the rate of recovery of refrigerant.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the structural representation of the utility model embodiment device for drying and filtering.
Specific embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
As shown in Figure 1：A kind of refrigerant purification device, including container 1, the top of container 1 are provided with charging/discharging opening, pressure
Power table 12 and exhaust outlet, the bottom of container 1 are provided with sewage draining exit, and the inner chamber of container 1 is used to hold the refrigerant with impurity, impurity
Predominantly mechanical admixture, moisture, air, grease or other liquid, due to their density and vary in weight, when being placed in container
After can produce layering.The pressure that pressure gauge 12 is used in detection container 1.Exhaust outlet is used to discharge the gas in container, exhaust outlet
Air bleeding valve 13 is connected by pipeline.Charging/discharging opening be a bore, can both discharge can also feeding, be mainly used in appearance
Refrigerant is added in device or isolate the refrigerant of vaporization；Charging/discharging opening is also sequentially connected drying through charging/outlet valve 11
Filter 2 and refrigeration unit 3.Sewage draining exit is used to discharge impurity, and sewage draining exit connects blowoff valve 14 by pipeline.Device for drying and filtering 2
The pump housing 3 is provided between refrigeration unit, for will be pumped into refrigeration unit through the refrigerant after dry filter in device for drying and filtering 2
Recycle.
Wherein, exhaust outlet also acts as bleeding point, for connecting vavuum pump component, preceding, Huo Zherong is used for the first time in container
When entering other gases in device, first to vacuumize, then place refrigerant, to avoid refrigerant from being mixed into air or other gases, shadow
Ring the accuracy of detection.
The side of container 1 is provided with temp probe 15, for detecting refrigerant temperature.Temp probe can be thermometer,
Can be temperature sensor, the present embodiment is preferably temperature sensor, be capable of achieving Intelligent Measurement.
The present embodiment also include controller, for control air bleeding valve 13, charging/outlet valve 11, the unlatching of blowoff valve 14 or
Close, and container pressure for pressure gauge 12 to be detected makes comparisons to control each valve with the theoretical pressure value of refrigerant
Door action；The output end connection air bleeding valve 13 of controller, charging/outlet valve 11, blowoff valve 14, the input connection pressure of controller
Power table 12 and temperature sensor.
As shown in Figure 2：In the present embodiment, device for drying and filtering 2 includes housing 21, and the both sides of housing 21 are respectively intake screen
22 and outlet filter screen 23, drier is filled with housing 21, end cap 24 is additionally provided with housing 21, end cap 24 passes through the He of fastener 25
Seal 26 is tightly connected with housing 21, and can be dismantled end cap by 25, is conveniently replaceable drier.Fastener 25 is preferably
Bolt is fastened, and seal 26 is sealing ring.
The drier of the present embodiment is graininess discoloration silica gel, and about 5 kilograms of the weight of the silica gel that changes colour, discoloration silica gel is being used
Before need to be toasted in drying box, so that it becomes blue, you can come into operation, not the used time it is closed preservation avoid water suction.Work as silicon
After glue is using reddening, can further take out and be toasted, Reusability is cost-effective.
In order to improve filter effect, the aperture of intake screen 22 is preferably 100 mesh, and the aperture for exporting filter screen 23 is preferably 50
Mesh.And the aperture of intake screen 22 and outlet filter screen 23 is respectively less than the particle diameter of silica gel.Why the aperture for exporting filter screen 23 is set
The aperture less than intake screen 22 is counted into, is in order to thoroughly filter the impurity in refrigerant, in order to avoid the refrigerant of vaporization carries one
The impurity of a little bulky grains enters refrigerant group, if the aperture of intake screen 22 and outlet filter screen 23 all design it is smaller, can increase
Material cost, if the aperture design of intake screen can reduce the rate of recovery of refrigerant into the aperture less than outlet filter screen.This implementation
In example, intake screen and outlet filter screen are stainless steel filtering net.
A kind of purification method of refrigerant purification device, comprises the following steps：
S301：Vacuumize, exclude the air or other gases in container.
Specifically, in container for the first time using preceding, or when entering other gases in container, first to vacuumize, then place
Refrigerant, to avoid refrigerant from being mixed into air or other gases, influences the accuracy of detection.The present embodiment be using exhaust outlet as
Bleeding point is used, and accesses vavuum pump, is opened by controlling air bleeding valve, to container vacuum-pumping.
S302：The refrigerant of recovery is placed in container, refrigerant and its impurity are layered in container.
Specifically, the refrigerant the inside of recovery typically contains mechanical admixture, moisture, air, grease or other liquid, machine
Tool impurity and heavy liquid can be sunken to the bottom of container；Lubricant grease often dissolves in the refrigerant, part it is insoluble because its into
Divide difference, the water surface may be swum in, or be suspended in more than refrigerant liquid level and below the water surface, it is also possible at refrigerant bottom
Portion；And the density of water is generally smaller than the density of liquid refrigerant, therefore water is placed in the upper strata of liquid refrigerant；And grease or liquid
It is also possible to that minor amount of water can be contained in refrigerant；Vapor phase refrigerant, micro water vapor and air are then floated in the upper strata of container, this implementation
The refrigerant of example is preferably R134a refrigerants.
S303：Container is stood and under isoperibol, the pressure value in detection container, if the pressure value of container is more than
Refrigerant theoretical pressure value at this ambient temperature, then illustrate to be mixed with air in container.
Specifically, because air is floated in the upper strata of container, therefore air is first discharged.Concrete principle is：Due to various
Refrigerant is to that should have temperature and pressure value comparison table, such as R134a refrigerants, the different pressure value of different temperature correspondences, at certain
Pressure value corresponding thereto is certainly existed under one stationary temperature, therefore, refrigerant is corresponding under a certain steady temperature
Pressure value be considered as theoretical pressure value, be used as in container the basis for estimation with the presence or absence of gas, i.e., when the pressure value of container is big
In it during theoretical pressure value under the isoperibol, then illustrate that refrigerant is mixed with air.Certainly, container is holding the system of recovery
Before cryogen, its inner chamber will keep vacuum environment, otherwise cause detection inaccurate.For example, R134a refrigerants are at 35 DEG C of constant temperature,
Its pressure value is 886.82KPa, and the value is considered as into theoretical pressure value；If container is placed under 35 DEG C of constant temperature, the pressure for detecting
Value is more than 886.82KPa, then illustrate to be mixed with air in refrigerant.
S304：Air bleeding valve is opened, the portion gas in release container, the container pressure that measures to be checked is equal under environment temperature
During theoretical pressure value, air bleeding valve is closed.
Specifically, when the pressure value that pressure sensor detects container is more than the theoretical pressure value under environment temperature, hair
The number of delivering letters to controller, controller control air bleeding valve to open to discharge gas, and the valve opening of air bleeding valve is adjustable, and then controls
The flow of gas.During discharge gas, the theoretical pressure value under the pressure value slightly below environment temperature first allowed in container, this
Because container can lower the temperature when deflating, and pressure can slightly decline after lowering the temperature, after after the environment temperature that temperature reaches early stage again,
Observe whether the pressure value in container is equal to theoretical pressure value again, if being equal to, illustrate to exclude gas in container, this time control
Device processed controls exhaust valve closure；If pressure value remains above theoretical pressure value, continue aforesaid operations, until pressure value is equal to theory
Pressure value, closes air bleeding valve.
S305：Charging/outlet valve is opened, the refrigerant in container is vaporized, refrigerant is separated with various impurity,
Refrigerant to vaporizing is dried filtering, and is recycled.
Specifically, if the water for being first opposite to liquid refrigerant upper strata is filtered, that is, water is allowed directly to enter dried
Filter, because aqueous water is more, then can waste substantial amounts of drier, greatly improve production cost.Therefore the present embodiment selection is right
Refrigerant is vaporized, and refrigerant will be vaporized, and water will not be vaporized at a temperature of this, and grease is more difficult to vaporization than water.
Vaporization front opening charging/outlet valve, so, the refrigerant after vaporization can carry a small amount of vapor and enter through charging/discharging opening
Filter dryer, after device for drying and filtering absorption micro water vapor, obtains pure and dried refrigerant.Refrigerant can be pumped into
Refrigeration unit is utilized, and is such as connected device for drying and filtering with refrigeration unit by the pump housing, and is filtered by Filter dryer
A small amount of vapor, greatly improves the service life of drier, cost-effective.
S306：In vaporescence, the pressure value under real-time detection isoperibol in container, when the pressure value in container is less than
During theoretical pressure value under environment temperature, then refrigerant volatilization is finished；It is simultaneously malleation in holding container, closes charging/discharging
Valve；
Specifically, when the pressure value in container is less than refrigerant theoretical pressure value at ambient temperature, in container
Would not again be vented, illustrate that refrigerant has volatilized and finish；Why some malleations are retained, partly in order to can be by container
Residual steam discharge, on the other hand, be to prevent air from entering container.It is higher than air when the pressure in container is detected
Pressure 1.5 times when, close charging/outlet valve.
S307：Open blowoff valve and discharge various impurity.
Specifically, blowoff valve is opened, mechanical admixture, moisture, grease and other liquid of bottom can be discharged, during discharge,
Holding container pressure superatmospheric, to avoid air from being mixed into, influence is subsequently used, and when using next time, can save operation stream
Journey.
Claims (7)
1. a kind of refrigerant purification device, it is characterised in that including：
Container, for holding refrigerant；
Pressure sensor, on container, for the pressure in detection container；
Temp probe, on container, for detecting refrigerant temperature；
Exhaust outlet, on container, for discharging the gas in container；Exhaust outlet connects air bleeding valve by pipeline；
Charging/discharging opening, on container, for adding refrigerant in container or isolate the refrigerant of vaporization；Charging/
Discharging opening is also sequentially connected device for drying and filtering and refrigeration unit through charging/outlet valve；
Sewage draining exit, located at the bottom of container, for discharging impurity, sewage draining exit connects blowoff valve by pipeline.
2. refrigerant purification device according to claim 1, it is characterised in that also including controller, for controlling to be vented
Valve, charging/outlet valve, blowoff valve are turned on and off, and container pressure and container for pressure sensor to be detected
Theoretical pressure value make comparisons to control each valve event.
3. refrigerant purification device according to claim 1 and 2, it is characterised in that the device for drying and filtering includes housing,
The both sides of housing are respectively intake screen and outlet filter screen, and drier is filled with housing, and end cap is additionally provided with housing, and end cap is
Demountable, seals by between seal and housing.
4. refrigerant purification device according to claim 3, it is characterised in that the drier be particle silica gel, point
Sub- sieve, activated alumina, activated carbon and its any mixture.
5. refrigerant purification device according to claim 3, it is characterised in that the aperture of the outlet filter screen is less than or waits
In the aperture of intake screen.
6. refrigerant purification device according to claim 3, it is characterised in that the hole of the intake screen and outlet filter screen
Particle diameter of the footpath less than drier.
7. refrigerant purification device according to claim 6, it is characterised in that the intake screen and/or outlet filter screen
Aperture be 40 ~ 120 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358749.4U CN206291558U (en) | 2016-12-12 | 2016-12-12 | A kind of refrigerant purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358749.4U CN206291558U (en) | 2016-12-12 | 2016-12-12 | A kind of refrigerant purification device |
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| Publication Number | Publication Date |
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| CN206291558U true CN206291558U (en) | 2017-06-30 |
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ID=59098296
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621358749.4U Active CN206291558U (en) | 2016-12-12 | 2016-12-12 | A kind of refrigerant purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440577A (en) * | 2016-12-12 | 2017-02-22 | 远大空调有限公司 | Refrigerant purifying device and purifying method |
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2016
- 2016-12-12 CN CN201621358749.4U patent/CN206291558U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440577A (en) * | 2016-12-12 | 2017-02-22 | 远大空调有限公司 | Refrigerant purifying device and purifying method |
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