CN108059136A - A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane - Google Patents
A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane Download PDFInfo
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- CN108059136A CN108059136A CN201710325940.1A CN201710325940A CN108059136A CN 108059136 A CN108059136 A CN 108059136A CN 201710325940 A CN201710325940 A CN 201710325940A CN 108059136 A CN108059136 A CN 108059136A
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- 239000001307 helium Substances 0.000 title claims abstract description 120
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 120
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000012528 membrane Substances 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 48
- 238000000746 purification Methods 0.000 claims abstract description 20
- 238000001819 mass spectrum Methods 0.000 claims abstract description 13
- 238000004064 recycling Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 77
- 239000012535 impurity Substances 0.000 claims description 26
- 238000012216 screening Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 17
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003595 mist Substances 0.000 description 8
- 239000000443 aerosol Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B23/00—Noble gases; Compounds thereof
- C01B23/001—Purification or separation processes of noble gases
- C01B23/0036—Physical processing only
- C01B23/0042—Physical processing only by making use of membranes
- C01B23/0047—Physical processing only by making use of membranes characterised by the membrane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of air conditioner two-unit leak detection helium purifying retracting devices based on UF membrane, it is connected by the first pipeline with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure storage tank respectively, membrane separator is provided on 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.The invention also discloses the helium method for purifying and recycling based on the device.Membrane separator is applied in the recycling and purification process of air conditioner two-unit leak detection helium by the purifying retracting device and method, 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-conditionings two based on UF membrane
Device leak detection helium purifying retracting device and method.
Background technology
Helium is a kind of non-renewable scarcity strategic resource, is mainly used for dirigible buoyancy, inertia protection, chromatography 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 is always by external import.
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.Major part helium mass spectrum leak detection equipment is equipped with online recycling equipment at present, former
Reason is to low pressure storage tank, then by compressor by the helium in low pressure storage tank using pressure difference by the in vivo helium recovery of vacuum leak hunting chamber
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 generated after compression and take greasy dirt out of, greasy dirt can be deposited on high pressure pot bottom, the usually 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 of discharge is very huge due to purity low (helium purity is less than 85%), 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
And method, the device and method 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, is stored up respectively with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure by the first pipeline
Tank connects, and is provided with membrane separator on first pipeline, is provided with to examine online in the inlet end of first pipeline
Survey the online purity detecting instrument of the helium purity in high pressure storage tank.
The present invention also provides a kind of air conditioner two-units based on UF membrane to detect helium method for purifying and recycling, including walking as follows
Suddenly：
Step 1：Monitor that the helium purity in high pressure storage tank is less than setting low value by online purity detecting instrument, it is synchronous
Open the first valve and the second valve；
Step 2：It is miscellaneous through oil filter and the filtering of Multi-stage precise filter through the helium that the first valve flows out from high pressure storage tank
Matter；
Step 3：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 4：It purifies infiltration gas up to standard and flows into low pressure storage tank through the second valve, the tail gas emptying that membrane separator generates；
Step 5：Monitor that the helium purity in high pressure storage tank is higher than setting high level by online purity detecting instrument, it is synchronous
Close the first valve and the second valve.
The present invention also provides air conditioner two-unit of the another kind based on UF membrane to detect helium method for purifying and recycling, including as follows
Step：When monitoring the helium purity in high pressure storage tank by online purity detecting instrument less than setting low value, into purification mode
One, the purification mode one includes the following steps：
Step 1：It is synchronous to open the first valve, the second valve and the 3rd valve；
Step 2：From high pressure storage tank through the helium that the first valve flows out through oil filter impurity screening；
Step 3：Voltage stabilizing helium after impurity screening cools down through cooling driers, will wherein moisture and oil liquefy；
Step 4；Helium through cooling driers removes liquefied moisture and oil through cyclone separator；
Step 5；The helium of cooling driers is flowed through through Multi-stage precise filter impurity screening；
Step 6：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 7：It is generated after purifying the buffered tank of infiltration gas up to standard through the second valve inflow low pressure storage tank, membrane separator
Tail gas emptying；
Step 8：Monitor that the helium purity in high pressure storage tank is higher than setting high level by online purity detecting instrument, it is synchronous
Close the first valve, the second valve and the 3rd valve.
Further, collect pressure tank when pressure sensor monitoring to dirty gas and be higher than setting value, it is described into purification mode two
Purification mode two includes the following steps：
Step 1：It is synchronous to open the second valve and the 4th valve, booster air pump；
Step 2：The helium flowed out from dirty gas collecting tank through the 4th valve is through oil filter impurity screening；
Step 3：Voltage stabilizing helium after impurity screening cools down through cooling driers, will wherein moisture and oil liquefy；
Step 4；Helium through cooling driers removes liquefied moisture and oil through cyclone separator；
Step 5；The helium of cooling driers is flowed through through Multi-stage precise filter impurity screening；
Step 6：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 7：Low pressure storage tank is flowed into through the second valve after air pump pressurizes after purifying the buffered tank of infiltration gas up to standard,
The tail gas emptying that membrane separator generates；
Step 8：Pressure tank is collected less than setting value, the second valve of close synchronously to dirty gas by pressure sensor monitoring
With the 4th valve, air pump is closed.
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 made to reach 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
It removes, on the one hand improves the effect of purifying, on the other hand improve the service life of membrane separator.
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 the embodiment of the present invention one
Fig. 3 is the schematic diagram of the embodiment of the present invention two
Specific embodiment
It is described below to disclose the present invention so that those skilled in the art can realize the present invention.It is excellent in being described 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 Figs. 1-2, a kind of air conditioner two-unit leak detection helium purifying retracting device based on UF membrane, passes through the first pipe
Road 100 is connected respectively with the high pressure storage tank in air conditioner two-unit helium mass spectrum leak detection system and low pressure storage tank, 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 the 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 the 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, are preferably two, will not be 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 purification process
The tail gas of generation 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 mist and aerosol etc., in UF membrane
Multi-stage precise filter 3 is provided on 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 is no longer described in detail herein.
U-tube heater 4, institute are provided on 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 made to raise 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 at the both ends of first pipeline 100, passes through control valve
The opening and closing of V1 and V2 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 1 signal of instrument.Online purity detecting instrument 1 can pass through the opening and closing of the first controller while control valve V1 and V2.
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
It purifies 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 on the first pipeline 100 between Multi-stage precise filter 3 and oil filter 2
It 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：It is 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 except 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 mist and
Aerosol, if then U-tube heater heats mass dryness fraction to gas, treated gas enters membrane separator 5 and is purified, reached
Target infiltration gas enters air conditioner two-unit helium mass spectrum leak detection system low-voltage storage tank, the direct emptying process of tail gas that membrane separator 5 generates,
When purity is more than or equal to automatic stopping when setting high level.
Embodiment two：
As shown in figure 3, the embodiment is to add more function modules on the basis of embodiment one to carry out helium
It purifies to reach better purification effect.
Be disposed on the first pipeline 100 between the pressure maintaining valve 10 and Multi-stage precise filter 3 cooling driers 9 and
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, the dirt gas collecting tank 7 and 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 on the dirt 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
Second controller control valve V2, V4 connected to it 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 on the first pipeline 100
It is enough selectively opened or closes to meet different helium purifying demands.Specifically, the unlatching of valve V2, V3 and air pump 12
Or close the first controller by connecting online purity detecting instrument 1 or connect the second controller control of pressure sensor 13, when
When the purity of online 1 detection of purity detecting instrument is less than setting value, V1, V2, V3 are opened, not booster air pump 12, when purity analyzer 1
V1, V2, V3 are simultaneously closed off when the purity of detection is greater than or equal to setting value.When the pressure that pressure sensor 13 detects is higher than setting
During value, V2, V4 are opened simultaneously, V3 close, booster air pump 12, when pressure sensor 13 detect pressure be less than setting value when V2,
V4 is simultaneously closed off, and simultaneously closes off air pump.
Surge tank 11 is additionally provided on the first pipeline 100 after membrane separator 5 to buffer in the first pipeline 100
Pressure, gas from surge tank 11 outflow after enter air pump 11 or valve V3.
Had in this embodiment according to the closing of valve V1, V2, V3 and V4 and opening there are two types of different purification modes,
Purification mode one is as follows：
By the purity of helium in online purity detecting instrument 1 in real time monitoring high pressure storage tank, when purity is low less than or equal to setting
Value, the purifying retracting device automatic start open valve V1, V2 and V3, and gas to be purified first flows through oil strainer 2, slightly
Except the oily impurity in gas, system pressure voltage stabilizing is cooled to several to voltage stabilizing value is about set through cooling driers 9 by pressure maintaining valve 10
Into cyclone separator 6 after degree, grain size is larger in gas water droplet and oil droplet are removed, then is removed through multistage filter 3 in gas
Fine solid particles and mist of oil, the water mist and aerosol of entrainment, if by U-tube heater 4 gas temperature is made to raise mass dryness fraction,
Treated gas is purified into membrane separator 5, and air conditioner two-unit helium mass spectrum is entered after the buffered tank 11 of infiltration gas up to standard
Leak detection system low pressure storage tank, the tail gas that membrane separator 5 generates are vented directly to the external world.
Purification mode two is as follows：The exhaust gas generated during 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 12 gas of air pump flows first
Through oil strainer 2, the thick oily impurity except 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, grain size 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 mist and aerosol carried secretly in gas, and U-tube heater 4 makes gas temperature
If degree rise mass dryness fraction, gas after treatment enter membrane separator 5 and are purified, the buffered tank of infiltration gas up to standard, air pump
Afterwards into air conditioner two-unit helium mass spectrum leak detection system low-voltage storage tank, the tail gas that membrane separator 5 generates is vented directly to the external world.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only 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 variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (13)
1. it is a kind of based on UF membrane air conditioner two-unit leak detection helium purifying retracting device, by the first pipeline respectively with air-conditioning two
High pressure storage tank in device helium mass spectrum leak detection system is connected with low pressure storage tank, which is characterized in that is provided on first pipeline
Membrane separator is provided with pure to the helium of the helium purity in on-line checking high pressure storage tank in the inlet end of first pipeline
Spend monitor.
2. a kind of air conditioner two-unit detection helium purifying retracting device based on UF membrane according to claim 1, feature
Be, on first pipeline of the membrane separator close to high pressure storage tank side along gas flow direction successively be equipped with oil filter,
Pressure maintaining valve, Multi-stage precise filter and heater.
3. a kind of air conditioner two-unit detection helium purifying retracting device based on UF membrane according to claim 2, feature
It is, the first valve is provided on 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 detection helium purifying retracting device based on UF membrane as claimed in claim 3, 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
It opens or close synchronously.
5. a kind of air conditioner two-unit detection helium purifying retracting device based on UF membrane according to claim 3, 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 detection helium purifying retracting device based on UF membrane according to claim 5, feature
Be, the second pipeline with the first valve in parallel be provided on 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 detection helium purifying retracting device based on UF membrane according to claim 6, 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.
8. a kind of air conditioner two-unit detection helium purifying retracting device based on UF membrane according to claim 7, in film point
Be provided with surge tank along the first pipeline after gas flow direction from device, by membrane separator gas by surge tank into
Enter to air pump or the 3rd valve.
9. a kind of air conditioner two-unit detection helium purifying retracting device based on UF membrane according to claim 8, 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.
10. a kind of helium of the detection helium purifying retracting device of the air conditioner two-unit based on UF membrane based on described in claim 4
Method for purifying and recycling, which is characterized in that include the following steps：
Step 1：Monitor that the helium purity in high pressure storage tank is less than setting low value by online purity detecting instrument, it is synchronous to open
First valve and the second valve；
Step 2：From high pressure storage tank through the helium that the first valve flows out through oil filter and Multi-stage precise filter impurity screening；
Step 3：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 4：It purifies infiltration gas up to standard and flows into low pressure storage tank through the second valve, the tail gas emptying that membrane separator generates；
Step 5：Monitor that the helium purity in high pressure storage tank is higher than setting high level, close synchronously by online purity detecting instrument
First valve and the second valve.
11. a kind of helium of the detection helium purifying retracting device of the air conditioner two-unit based on UF membrane based on described in claim 9
Method for purifying and recycling, which is characterized in that set when monitoring that the helium purity in high pressure storage tank is less than by online purity detecting instrument
Determine low value, into purification mode one, the purification mode one includes the following steps：
Step 1：It is synchronous to open the first valve, the second valve and the 3rd valve；
Step 2：From high pressure storage tank through the helium that the first valve flows out through oil filter impurity screening；
Step 3：Voltage stabilizing helium after impurity screening cools down through cooling driers, will wherein moisture and oil liquefy；
Step 4；Helium through cooling driers removes liquefied moisture and oil through cyclone separator；
Step 5；The helium of cooling driers is flowed through through Multi-stage precise filter impurity screening；
Step 6：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 7：It purifies and flows into low pressure storage tank, the tail that membrane separator generates through the second valve after the buffered tank of infiltration gas up to standard
Gas empties；
Step 8：Monitor that the helium purity in high pressure storage tank is higher than setting high level, close synchronously by online purity detecting instrument
First valve, the second valve and the 3rd valve.
12. a kind of helium of the detection helium purifying retracting device of the air conditioner two-unit based on UF membrane based on described in claim 11
Method for purifying and recycling, which is characterized in that collect pressure tank to dirty gas when pressure sensor monitoring and be higher than setting value, into purifying mould
Formula two, the purification mode two include the following steps：
Step 1：It is synchronous to open the second valve and the 4th valve, booster air pump；
Step 2：The helium flowed out from dirty gas collecting tank through the 4th valve is through oil filter impurity screening；
Step 3：Voltage stabilizing helium after impurity screening cools down through cooling driers, will wherein moisture and oil liquefy；
Step 4；Helium through cooling driers removes liquefied moisture and oil through cyclone separator；
Step 5；The helium of cooling driers is flowed through through Multi-stage precise filter impurity screening；
Step 6：It is purified again through membrane separator after the heated device heating of helium after impurity screening；
Step 7：After purifying the buffered tank of infiltration gas up to standard low pressure storage tank, film point are flowed into through the second valve after air pump pressurizes
The tail gas emptying generated from device；
Step 8：Pressure tank is collected less than setting value by pressure sensor monitoring to dirty gas, the second valve of close synchronously and the
Four valves close air pump.
13. according to the helium of the detection helium purifying retracting device of the air conditioner two-unit based on UF membrane described in based on claim 12
Method for purifying and recycling, which is characterized in that set when monitoring that the helium purity in high pressure storage tank is less than by online purity detecting instrument
Determine low value, while pressure sensor monitoring collects pressure tank higher than setting value to dirty gas, into purification mode one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325940.1A CN108059136A (en) | 2017-05-10 | 2017-05-10 | A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325940.1A CN108059136A (en) | 2017-05-10 | 2017-05-10 | A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane |
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| Publication Number | Publication Date |
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| CN108059136A true CN108059136A (en) | 2018-05-22 |
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| CN201710325940.1A Pending CN108059136A (en) | 2017-05-10 | 2017-05-10 | A kind of air conditioner two-unit leak detection helium purifying retracting device and method based on UF membrane |
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| CN109631030A (en) * | 2019-02-22 | 2019-04-16 | 北控清洁热力有限公司 | A kind of soot blower system of heating pulverized-coal fired boiler |
| CN110203895A (en) * | 2019-07-01 | 2019-09-06 | 苏州睿分电子科技有限公司 | A kind of the circulatory purification system and circulatory purification method of helium |
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| CN110203895A (en) * | 2019-07-01 | 2019-09-06 | 苏州睿分电子科技有限公司 | A kind of the circulatory purification system and circulatory purification method of helium |
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