CN206872430U - A kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane - Google Patents
A kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane Download PDFInfo
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- CN206872430U CN206872430U CN201720513848.3U CN201720513848U CN206872430U CN 206872430 U CN206872430 U CN 206872430U CN 201720513848 U CN201720513848 U CN 201720513848U CN 206872430 U CN206872430 U CN 206872430U
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Abstract
The utility model discloses a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane, it is connected with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure storage tank respectively by the first pipeline, membrane separator is provided with first pipeline, is provided with to detect the online purity monitor of the helium purity in high pressure storage tank in the inlet end of first pipeline.Membrane separator is applied in the recovery and purge process of air conditioner two-unit leak detection helium by the purifying retracting device, is effectively improved helium recovery rate and purification effect.
Description
Technical field
The invention belongs to air conditioner two-unit leak detection helium purifying recycling field, more particularly to a kind of air-conditioning two based on UF membrane
Device leak detection helium purifying retracting device.
Background technology
Helium is a kind of non-renewable scarcity strategic resource, is mainly used in dirigible buoyancy, inertia protection, chromatogram point
The fields such as analysis, heat conduction, leak detection, fiber optics, Breathing device for.Content on earth is extremely rare, the helium reserves verified at present
About 49,000,000,000 m3, the U.S., Algeria, Qatar and Russia are mainly distributed on, about possesses the helium resource in the world 39%, and
China is because natural gas helium content is extremely low (only 0.2%), helium scarcity of resources, so helium demand relies on external import always.
Air conditioner two-unit (condenser and evaporator, hereinafter referred to as air conditioner two-unit) wants the positions such as butt welding point to be examined before assembly
Leakage.Leak hunting method mainly has helium mass spectrum leak detection method, halogen leak detection and water inspection method, because of the sensitivity highest of helium mass spectrum leak detection method,
It is widely used by domestic each large-scale Air-conditioning Enterprise.Current most of helium mass spectrum leak detection equipment is equipped with online recycling equipment, and it is former
Reason is to low pressure storage tank, then by compressor by the helium in low pressure storage tank using pressure difference by the helium recovery in vacuum leak hunting cavity
Air pressure is reduced to high pressure storage tank, and high pressure storage tank is equipped with online purity detecting instrument, when helium purity is less than 85%, to avoid to leak detection
Purity, which impacts, will automatically turn on the air bleeding valve of high pressure storage tank and is exhausted, while enable high-purity helium steel cylinder group to low-pressure tank
Tonifying Qi is carried out, until the purity of helium is more than 85% in pressure pan.In addition, because using oil lubricating compressor, helium is through compressor
It can be produced after compression and take greasy dirt out of, greasy dirt can be deposited on high pressure pot bottom, the generally row by periodically opening high pressure storage tank bottom
Dirty valve carries out blowdown, causes the waste of helium.
The online recycling function of air conditioner two-unit helium mass spectrum leak detection equipment itself can reduce the total of helium to a certain extent
Body usage amount, but the amount of helium discharged by purity low (helium purity is less than 85%) is very huge, according to statistics, domestic a certain line
Brand air-conditioning production base monthly needs to purchase about 15000Nm3Helium is hunted leak for two devices.
The content of the invention
It is a primary object of the present invention to provide a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane,
The device can effectively purify helium, reduce the waste of helium, reduce use cost.
To achieve the above objectives, the technical solution adopted by the present invention is：A kind of air conditioner two-unit leak detection helium based on UF membrane
Gas purifies retracting device, and it is stored up with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure respectively by the first pipeline
Tank is connected, and membrane separator is provided with first pipeline, is provided with the inlet end of first pipeline to online inspection
The online purity detecting instrument for the helium purity surveyed in high pressure storage tank.
Compared with prior art, the invention has the advantages that：
1) membrane separator is applied in air conditioner two-unit leak detection helium purifying removal process by the device, improves helium purifying
Effect, helium purity after purification is reached more than 98%)；
2) oil filter, multistage filter be have passed through respectively before gas enters membrane separator so that the impurity of gas to be gone
Remove, on the one hand improve the effect of purifying, on the other hand improve the life-span of membrane separator.
Brief description of the drawings
Fig. 1 is air conditioner two-unit helium mass spectrum leak detection system flow chart；
Fig. 2 is the schematic diagram of embodiments of the invention one；
Fig. 3 is the schematic diagram of embodiments of the invention two.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Embodiment one：
As shown in Figure 1-2, a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane, it passes through the first pipe
Road 100 is connected with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure storage tank respectively, and gas is in the first pipe
Flow direction in road 100 is the direction flowing from high pressure storage tank towards low pressure storage tank.The air conditioner two-unit helium mass spectrum leak detection system category
In prior art, no longer it is described in detail herein.
The purifying retracting device includes being arranged on the membrane separator 5 on the first pipeline 100 to purify helium.
Specifically, the membrane separator 5 belongs to prior art to helium Purification: Principles, is no longer described in detail herein.In order to ensure the effect of purifying
Fruit, the membrane separator 5 can be multiple, preferably two, will not be also added to too much while purification effect is ensured
This.Multiple membrane separators 5 are arranged in parallel.Low pressure storage tank is entered by the helium of membrane separator 5 after purification, in purge process
Caused tail gas is vented directly to the external world.It should be noted that according to the purity and helium recovery rate index request to be purified, film
Separator can also be arranged in series.
In order to remove the oily impurity that helium is taken out of from compressor, before the flow direction of helium is located at membrane separator 5
The first pipeline 100 on be provided with oil filter 2, oil filter 2 can remove the oily impurity in helium.
In order to further remove the fine solid particles carried secretly in helium, mist of oil, water smoke and aerosol etc., in UF membrane
Multi-stage precise filter 3 is provided with the first pipeline 100 between device 5 and oil filter 2, by Multi-stage precise filter 3 to helium
Impurity in gas is filtered, and on the one hand ensure that the purity of helium after purification, on the other hand improves the longevity of membrane separator 5
Life.Preferably, Multi-stage precise filter 3 has three-level.And the operation principle of the Multi-stage precise filter 3 uses existing skill
Art, no longer it is described in detail herein.
U-tube heater 4, institute are provided with the first pipeline 100 between Multi-stage precise filter 3 and membrane separator 5
U-tube heater 4 is stated to be heated to gas, gas temperature is raised 5-8 DEG C, makes the gas into membrane separator 5 remote
From dew point, reduce the moisture in gas and oil by vapor condensation on the film of membrane separator 5 to improve the longevity of membrane separator 5
Life.
The first valve V1 and the second valve V2 are respectively arranged with the both ends of first pipeline 100, passes through control valve
V1 and V2 opening and closing purify the startup and closing of retracting device to start.Also, in the first pipeline 100 and high pressure storage tank
Connected one end is provided with online purity detecting instrument 1 to detect the helium purity in high pressure storage tank.
The purifying retracting device includes the first controller, and first controller is examined with valve V1 and V2 and online purity
Survey the connection of the signal of instrument 1.Online purity detecting instrument 1 can pass through the first controller while control valve V1 and V2 opening and closing.
When the helium purity that online purity detecting instrument 1 detects is less than setting low value, the first controller, which opens valve V1 and V2, makes this
Purify retracting device to start, when helium purity is more than or equal to setting high level, the first controller control valve door V1 and V2 is closed, and is made
The purifying retracting device is shut down.
Pressure maintaining valve 10, pressure maintaining valve 10 are provided with the first pipeline 100 between Multi-stage precise filter 3 and oil filter 2
Can be by the pressure stability of the gas in the first pipeline 100 thereafter in setting value, the stability purified with guarantee.
The course of work of the embodiment is as follows：Monitored in real time by the purity to helium in high pressure storage tank first, when
When purity is less than or equal to setting low value, the purifying retracting device automatic start, controller opens valve V1 and V2, into the first pipe
The gas on road 100 first flows through oil strainer 2, the thick oily impurity removed in gas, through pressure maintaining valve 10 by the gas in the first pipeline 100
Body pressure voltage stabilizing to setting value, then by tertiary filter 3 remove the fine solid particles carried secretly in gas, mist of oil, water smoke and
Aerosol, if then U-tube heater heats mass dryness fraction to gas, treated gas is purified into membrane separator 5, reached
Target infiltration gas enters air conditioner two-unit helium mass spectrum leak detection system low-voltage storage tank, and tail gas is directly at emptying caused by membrane separator 5
Reason, the automatic stopping when purity is more than or equal to setting high level.
Embodiment two：
As shown in figure 3, the embodiment is to add more functional modules on the basis of embodiment one to carry out helium
Purify to reach more preferable purification effect.
Cooling driers 9 are disposed with the first pipeline 100 between the pressure maintaining valve 10 and Multi-stage precise filter 3
With cyclone separator 6, if the cooling driers 9 to by gas cooling down mass dryness fraction so that the moisture and oil in gas condense
Into water droplet and oil droplet, the cyclone separator 6 is removing the water droplet and oil droplet that are formed in gas after cooling driers cool down.
It is provided with second pipeline 101 in parallel with valve V1 on the first pipeline 100, second pipeline 101 is along gas
The direction of body flowing is disposed with oil filter 8, dirty gas collecting tank 7 and valve V4, and the dirty gas collecting tank 7 is used to collect air-conditioning
Because of the helium that purity is low or superpressure is discharged during the leak detection of two devices, pressure sensor 13 is provided with the dirty gas collecting tank 7,
The pressure sensor 13 is to detect the gas pressure of dirty gas collecting tank 7, and when pressure reaches setting value, pressure sensor 13 is logical
Connected second controller control valve V2, V4 is crossed to start.
It is provided with air pump 12 on the first pipeline 100 after membrane separator 5, the air pump 12 is ensureing in pipeline
Gas is flowed with certain speed.The threeth valve V3 in parallel with air pump 11, valve V3 energy are additionally provided with the first pipeline 100
Enough it is selectively opened or closes meets that different helium purifies demand.Specifically, valve V2, V3 and air pump 12 are opened
Open or close the first controller by connecting online purity detecting instrument 1 or connect the second controller control of pressure sensor 13,
When the purity of online purity detecting instrument 1 detection is less than setting value, V1, V2, V3 are opened, booster air pump 12, do not work as purity analysis
V1, V2, V3 are simultaneously closed off when the purity that instrument 1 detects is greater than or equal to setting value.When the pressure that pressure sensor 13 detects is higher than
During setting value, V2, V4 are opened simultaneously, and V3 is closed, booster air pump 12, when the pressure that pressure sensor 13 detects is less than setting value
V2, V4 are simultaneously closed off, and simultaneously close off air pump.
Surge tank 11 is additionally provided with the first pipeline 100 after membrane separator 5 to buffer the first pipeline 100
Interior pressure, gas enter air pump 11 or valve V3 after the outflow of surge tank 11.
Two kinds of different purification modes are had according to valve V1, V2, V3 and V4 closing and opening in this embodiment,
Purification mode one is as follows：
The purity of helium in high pressure storage tank is monitored in real time by online purity detecting instrument 1, when purity is low less than or equal to setting
Value, the purifying retracting device automatic start, valve V1, V2 and V3 are opened, gas to be purified first flows through oil strainer 2, slightly
Except the oily impurity in gas, by pressure maintaining valve 10 by system pressure voltage stabilizing to voltage stabilizing value is about set, if being cooled to through cooling driers 9
Enter cyclone separator 6 after mass dryness fraction, remove particle diameter is larger in gas water droplet and oil droplet, then gas is removed through multistage filter 3
Fine solid particles and mist of oil, the water smoke and aerosol of middle entrainment, raise gas temperature by U-tube heater 4 some
Degree, treated gas enter membrane separator 5 and purified, and air conditioner two-unit helium matter is entered after the buffered tank 11 of infiltration gas up to standard
Leak detection system low pressure storage tank is composed, tail gas caused by membrane separator 5 is vented directly to the external world.
Purification mode two is as follows：Waste gas caused by leak detection system blowdown is collected by dirty gas collecting tank 2, when dirty gas is collected
Pressure in tank is more than or equal to setting value, purifies retracting device automatic start, opens valve V2, V4 and the gas of air pump 12 flows first
Through oil strainer 2, the thick oily impurity removed in gas, by pressure maintaining valve 10 by system pressure voltage stabilizing to voltage stabilizing value is about set, through cold
After if dry machine cools to mass dryness fraction, into cyclone separator, particle diameter is larger in gas water droplet and oil droplet are removed, then by Multi-stage precise
Filter 3 removes fine solid particles and mist of oil, the water smoke and aerosol carried secretly in gas, and U-tube heater 4 makes gas temperature
If degree rise mass dryness fraction, gas after treatment are purified into membrane separator 5, the buffered tank of infiltration gas up to standard, air pump
Enter air conditioner two-unit helium mass spectrum leak detection system low-voltage storage tank afterwards, tail gas caused by membrane separator 5 is vented directly to the external world.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent defines.
Claims (9)
1. it is a kind of based on UF membrane air conditioner two-unit leak detection helium purifying retracting device, its by the first pipeline respectively with air-conditioning two
High pressure storage tank in device helium mass spectrum leak detection system connects with low pressure storage tank, it is characterised in that is provided with first pipeline
Membrane separator, it is provided with the inlet end of first pipeline pure to the helium of the helium purity in on-line checking high pressure storage tank
Spend monitor.
2. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 1, its feature
Be, on first pipeline of the membrane separator close to high pressure storage tank side along gas flow direction be sequentially provided with oil filter,
Pressure maintaining valve, Multi-stage precise filter and heater.
3. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 2, its feature
It is, the first valve is provided with the inlet end of the close high pressure storage tank of the first pipeline, in the first pipeline close to low pressure storage tank
Outlet side on be provided with the second valve.
4. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane as claimed in claim 3, its feature exist
In the online purity detecting instrument connects the first controller, the first valve and the second valve and synchronously beaten by the control of the first controller
Open or close synchronously.
5. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 3, its feature
It is, cold do is disposed with along gas flow direction on the first pipeline between pressure maintaining valve and Multi-stage precise filter
Machine and cyclone separator.
6. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 5, its feature
Be, the second pipeline with the first valve in parallel be provided with the first pipeline, on the second pipeline along gas flow direction according to
It is secondary to be provided with dirty gas collecting tank and the 4th valve, it is provided with to detect gas pressure in dirty gas collecting tank on dirty gas collecting tank
Pressure sensor.
7. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 6, its feature
It is, is provided with air pump and threeth valve in parallel with the air pump on the first pipeline between membrane separator and the second valve.
A kind of 8. air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 7, in film point
Surge tank is provided with along the first pipeline after gas flow direction from device, is entered by the gas of membrane separator by surge tank
Enter to air pump or the 3rd valve.
9. a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane according to claim 8, its feature
It is, the online purity detecting instrument connects the first controller, and the first controller controls the first valve, the second valve, the 3rd valve
Door is synchronous to open or closes, and the pressure sensor connects second controller, and second controller controls the second valve, the 4th valve
Door, air pump are synchronously opened or closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720513848.3U CN206872430U (en) | 2017-05-10 | 2017-05-10 | A kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane |
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| CN201720513848.3U CN206872430U (en) | 2017-05-10 | 2017-05-10 | A kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059136A (en) * | 2017-05-10 | 2018-05-22 | 安徽万瑞冷电科技有限公司 | A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane |
| CN108355416A (en) * | 2018-04-19 | 2018-08-03 | 合肥硕朗自动化科技有限公司 | A kind of helium recovery purifier for vacuum tank leak detection system |
| CN109026626A (en) * | 2018-06-19 | 2018-12-18 | 安徽万瑞冷电科技有限公司 | A kind of gas recycling compression set and the helium recovery system comprising the device |
| CN111467914A (en) * | 2020-03-27 | 2020-07-31 | 大连海奥膜技术有限公司 | Process and equipment for enriching low-concentration fast gas in mixed gas |
-
2017
- 2017-05-10 CN CN201720513848.3U patent/CN206872430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059136A (en) * | 2017-05-10 | 2018-05-22 | 安徽万瑞冷电科技有限公司 | A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane |
| CN108355416A (en) * | 2018-04-19 | 2018-08-03 | 合肥硕朗自动化科技有限公司 | A kind of helium recovery purifier for vacuum tank leak detection system |
| CN109026626A (en) * | 2018-06-19 | 2018-12-18 | 安徽万瑞冷电科技有限公司 | A kind of gas recycling compression set and the helium recovery system comprising the device |
| CN111467914A (en) * | 2020-03-27 | 2020-07-31 | 大连海奥膜技术有限公司 | Process and equipment for enriching low-concentration fast gas in mixed gas |
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