CN104422570B - Detection device and detection method for oil return hole of gas-liquid separator - Google Patents
Detection device and detection method for oil return hole of gas-liquid separator Download PDFInfo
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- CN104422570B CN104422570B CN201310397972.4A CN201310397972A CN104422570B CN 104422570 B CN104422570 B CN 104422570B CN 201310397972 A CN201310397972 A CN 201310397972A CN 104422570 B CN104422570 B CN 104422570B
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 230000008961 swelling Effects 0.000 claims description 26
- 238000005273 aeration Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 8
- 238000007689 inspection Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009659 non-destructive testing Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention provides a detection device and a detection method for an oil return hole of a gas-liquid separator. According to the detection device for the oil return hole of the gas-liquid separator, the gas-liquid separator comprises a shell and an air outlet pipe, the oil return hole is positioned on the air outlet pipe, the first end of the air outlet pipe is positioned outside the shell, and the second end of the air outlet pipe is positioned inside the shell; the detection device comprises: a sealing device for sealing two ends of the air outlet pipe; and the inflation detection device is used for inflating the inner cavity of the air outlet pipe with two sealed ends and detecting the inflation flow. According to the invention, through sealing devices at two ends of the air outlet pipe and inflating the air outlet pipe with two sealed ends, as gas can only enter the gas-liquid separator from the balance hole and the oil return hole and is communicated with the outside, when the oil return hole is blocked, the flow (namely inflation flow) entering the gas-liquid separator from the air outlet pipe is obviously reduced under a certain air pressure, and whether the oil return hole is blocked or not is judged accordingly.
Description
Technical field
The present invention relates to detection technique field, in particular to a kind of detection means of the spill port of vapour liquid separator
And detection method.
Background technology
Vapour liquid separator is enclosed container, and internal structure cannot be directly viewable, and spill port is inside vapour liquid separator
U-tube bottom, spill port plays the effect of oil return within air-conditioning systems, and oil return hole plug may directly result in compressor fortune
Turn non lubricant oil, and lead to rotating shaft abrasion it is impossible to operate.In prior art, whether spill port is detected only dissect and peep with interior
Two kinds of methods of inspection of spectroscopy.However, anatomic method is to use to open the enclosed structure of vapour liquid separator, efficiency is low,
Working strength is big, and destroys the overall structure of vapour liquid separator it is impossible to come into operation after detection again；Though endoscope inspection method
It is nondestructive testing, but check cost is high, and checkability is not high.
Content of the invention
The present invention is intended to provide a kind of detection means of spill port of the vapour liquid separator of Non-Destructive Testing and detection method.
The invention provides a kind of detection means of the spill port of vapour liquid separator, vapour liquid separator includes housing and gives vent to anger
Pipe, spill port is located on escape pipe, and the first end of escape pipe is located at the outside of housing, and the second end of escape pipe is located at housing
Internal；Detection means includes：Sealing device, the two ends sealing to escape pipe；Detection apparatus for aeration, to the escape pipe of two ends sealing
Inner chamber inflate and detect flow of aerating air.
Further, sealing device includes：First sealing device, the first end sealing to escape pipe；Second sealing device,
The second end sealing to escape pipe.
Further, the second sealing device is Inflatable sealing device, and Inflatable sealing device extends from the first end of escape pipe
To the second end with the second end sealing to escape pipe.
Further, Inflatable sealing device includes：Bulge, expands to seal the second end of escape pipe；Operating portion, from going out
The first end of trachea extends to the second end, and to bulge operation so that bulge expands.
Further, bulge is swelling gasbag；Operating portion includes the first connecting tube；The first end of the first connecting tube is from going out
The first end of trachea extends to escape pipe second end, and is connected with swelling gasbag；Second end of the first connecting tube is used for and the
One source of the gas connection.
Further, operating portion also includes：First air gauge, is connected in the first connecting tube to control the gas of swelling gasbag
Pressure.
Further, detection apparatus for aeration includes：Second connecting tube, the first end of the second connecting tube and the inner chamber of escape pipe
It is connected, the second end of the second connecting tube is used for connecting with the second source of the gas；Effusion meter, is connected in the second connecting tube to detect
Gas flow in two connecting tubes.
Further, detection apparatus for aeration also includes：Second air gauge, is connected in the second connecting tube to control second even
Gas pressure in adapter.
Further, flow is calculated as spinner flowmeter.
Further, first sealing device is sealing-plug.
Present invention also offers a kind of detection method of the spill port of vapour liquid separator, method comprises the following steps：Step
S10：Seal the two ends of escape pipe using sealing device；Step S20：In the escape pipe being sealed to two ends using detection apparatus for aeration
Insufflation gas simultaneously detect flow of aerating air.
Further, step S10 specifically includes：Step S11：Extended from the first end of escape pipe using Inflatable sealing device
Seal to the second end and to the second end of escape pipe；Step S12：Using sealing-plug, the first end of escape pipe is sealed.
Further, step S11 specifically includes：Step S111：By the first connecting tube be connected with the end of swelling gasbag from
The first end of escape pipe extends to the second end；Step S112：Open the first source of the gas to insufflation gas in swelling gasbag so that expanding
Airbag inflation seals the second end of escape pipe；Step S113：When the first barometric air pressure reaches the first preset value, close the
One source of the gas pressurize.
Further, step S20 specifically includes：Step S21：Open the second source of the gas, inflate in tube cavity of giving vent to anger；Step
S22：Adjust the second barometric air pressure and reach the second preset value；Step S23：Read effusion meter numerical value and with acceptance value pair
Than.
The detection means of the spill port of the vapour liquid separator according to the present invention and detection method, by close to escape pipe two ends
Seal apparatus, and the inner chamber inflation of the escape pipe sealing to two ends is to detect flow of aerating air.Equal to two ends using detection apparatus for aeration
Inflate in the escape pipe of sealing, gas can only enter vapour liquid separator inside from balance pipe and spill port and be in communication with the outside,
From escape pipe, when oil return hole plug, under certain air pressure, enter the flow of vapour liquid separator（I.e. flow of aerating air）Significantly
Reduce, to judge whether spill port blocks according to this.The detection means of the present invention and detection method, structure of the detecting device is simple, inspection
Survey method low cost, and destruction is not produced to vapor-liquid separator structure, the event after sale of vapour liquid separator can be effectively reduced
Barrier rate, improve product quality.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the detection means of the spill port of the vapour liquid separator according to the present invention.
Specific embodiment
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In a particular embodiment of the present invention, to illustrate the present invention in conjunction with vapour liquid separator 10 sectional view shown in 1
The spill port of vapour liquid separator detection means.As shown in Figure 1, vapour liquid separator 10 includes housing 11, escape pipe 12 and
Air inlet pipe 13, wherein, in the present embodiment escape pipe 12 be shaped as U-shaped shape, hereinafter referred to as U-tube, certainly according to actual need
Will, the shape of escape pipe 12 is not limited to U-shaped shape.Spill port 12a is located at the bottom of U-tube, and the first end of U-tube is located at
The outside of housing 11, the second end of U-tube is located at the inside of housing 11, usually, U-tube is additionally provided with balance pipe 12b.
The detection means of the present invention includes sealing device 20 and detection apparatus for aeration 30, sealing device 20 to U-tube two
End sealing, inflates in the U-tube that detection apparatus for aeration 30 seals to two ends.Due to the sealing of U-tube two ends, the gas in inner chamber is only
Can discharge from spill port 12a and balance pipe 12b, when air inlet pipe 13 is opened wide, inside housing 11, spill port 12a and balance pipe
12b is directly and atmosphere.
When spill port 12a blocking or Partial Blocking, the leaving area of U-tube reduces, in the case that air pressure is certain,
When comparing spill port 12a and not blocking, extraction flow（I.e. flow of aerating air）Reduce, by detecting flow of aerating air, and and acceptance value
Contrast, you can judge whether spill port 12a blocks.Usually, acceptance value is at the same pressure, to multiple spill port 12a
Do not block vapour liquid separator 10 to inflate, and detect the statistical value result of flow of aerating air.When flow of aerating air is less than acceptance value, can
To think spill port 12a blocking, thus judging that vapour liquid separator 10 is unqualified, conversely, closing when flow of aerating air is more than or equal to
During lattice value, then judge that vapour liquid separator 10 is qualified.The detection means of the present invention realizes Non-Destructive Testing to vapour liquid separator 10, can have
Effect reduces the fault rate after sale of vapour liquid separator 10, improve product quality.
Specifically, sealing device 20 includes the first sealing device to the sealing of U-tube first end, and to U-tube second end
Second sealing device of sealing, because the first end of U-tube is located at the outside of housing, relatively easy operation, first sealing device
Sealing-plug 21 can directly be adopted.
Second sealing device adopts Inflatable sealing device, and Inflatable sealing device extends to the second end from the first end of U-tube
With the second end sealing to U-tube, that is, vapor-liquid separation is pointed to from the outside of vapour liquid separator 10 using Inflatable sealing device
Second end sealing of the U-tube within device 10.Sealing-plug 21 seals to the first end of U-tube, after the two ends of U-tube all seal,
The inner chamber of whole U-tube only has spill port 12a and balance pipe 12b and extraneous conducting, that is, adopt detection apparatus for aeration 30 to U-tube
During inner inflatable, gas can only be discharged from spill port 12a and balance pipe 12b, when air inlet pipe 13 is opened wide, inside housing 11, returns
Oilhole 12a and balance pipe 12b is directly and atmosphere.
Specifically, Inflatable sealing device includes bulge and operating portion, and operating portion extends to second from the first end of U-tube
End, makes bulge be located between the terminal part at the second end of U-tube or the terminal part at spill port 12a and the second end, in vapour-liquid
Separator 10 is outside to be operated to bulge by operating portion, so that bulge is expanded, thus the second end sealing to U-tube.Need
Illustrate, in this manual, the second end of U-tube is not strictly defined as the terminal part at the second end of U-tube, in Fig. 1
In shown U-tube, U-tube is located at the part on the right side of spill port 12a, is all regarded as the second end of U-tube.
More specifically, in a preferred embodiment of the invention, bulge is swelling gasbag 22, and operating portion includes the first connection
Pipe 23 and the first source of the gas 24, swelling gasbag 22 is connected in the first end of the first connecting tube 23, is connected with the of swelling gasbag 22
The end of one connecting tube 23 extends to U-tube second end from the first end of U-tube, makes swelling gasbag 22 be located at spill port 12a right
Side.First source of the gas 24 is connected with the second end of the first connecting tube 23, and opening the first source of the gas 24 can make to swelling gasbag 22 inflation
Swelling gasbag 22 is heaved, thus to the part sealing on the right side of spill port 12a.
Preferably, operating portion also includes the first air gauge 25, and the first air gauge 25 is connected in the first connecting tube 23 to control
The air pressure of swelling gasbag 22 processed, suitable air pressure can make swelling gasbag 22 reliably seal the second end of U-tube, simultaneously and not
Swelling gasbag 22 is led to burst greatly very much as pressure.
Specifically, detection apparatus for aeration 30 includes the second connecting tube 31, the second source of the gas 32, effusion meter 33.Second connecting tube
31 first end and the intracavity inter-connection of U-tube, the second source of the gas 32 is connected with the second end of the second connecting tube 31, thus to U-shaped
Pipe is inflated.Effusion meter 33 is connected in the second connecting tube 31 to detect the gas flow in the second connecting tube 31.Second connecting tube
31 the blowing pressure directly can be controlled by the second source of the gas 32, also can connect the second air gauge 34 in the second connecting tube 31, from
And it is precisely controlled the gas pressure in the second connecting tube 31.Preferably, effusion meter 33 is spinner flowmeter, measures air-flow stream
Amount is more accurate.As penetrating in spill port 12a without exception, then the flow value that spinner flowmeter shows is larger, such as spill port 12a blocking,
Then gas can only flow out from balance pipe 12b, then flow value is less.The detection means of the present invention can be directly perceived from the size of flow value
Whether inspection spill port 12a blocks, and operation is simple and quick, can effectively improve checkability.And the detection of present invention dress
The power resources put are all gas pressures, need not any electrical equipment original paper, reducing energy consumption, save inspection cost.
Preferably, the first connecting tube 23 and the second connecting tube 31 are set for convenience, sealing-plug 21 is provided with two points
Through hole not with the first connecting tube 23 and the second connecting tube 31 cooperation, through hole and the first connecting tube 23 and the second connecting tube 31 outward
Wall is tightly connected the accuracy it is ensured that measuring.
Present invention also offers a kind of detection method of the spill port of vapour liquid separator, the method comprises the following steps：Step
Rapid S10：Seal the two ends of escape pipe 12 using sealing device；Step S20：The institute being sealed to two ends using detection apparatus for aeration 30
State in escape pipe 12 insufflation gas and detect flow of aerating air.Due to the sealing of U-tube two ends, the gas in inner chamber can only be from spill port
Discharge in 12a and balance pipe 12b, when air inlet pipe 13 is opened wide, inside housing 11, spill port 12a and balance pipe 12b directly with big
Gas connects.When spill port 12a blocking or Partial Blocking, the leaving area of U-tube reduces, in the case that air pressure is certain,
When comparing spill port 12a and not blocking, extraction flow（I.e. flow of aerating air）Reduce, by detecting flow of aerating air, and and acceptance value
Contrast, you can judge whether spill port 12a blocks.
The two ends of sealing U-tube specifically include, and first the first connecting tube 23 and the second connecting tube 31 are located in sealing-plug
In through hole in 21, and pass through suitable length；Then connect swelling gasbag 22 in the end of the first connecting tube 23, and fixation can
Lean on, then seal the second end of U-tube, finally the sealing-plug 21 being equipped with the first connecting tube 23 and the second connecting tube 31 is stoppered
The first end of U-tube, so that the two ends of U-tube all seal.
More specifically, the second end of sealing U-tube comprises the steps：First, the first connecting tube 23 is connected with expansion
The end of air bag 22 is from the first end of U-tube（Outside vapour liquid separator 10）Extend to the second end, will the first connecting tube
23 stretch into outside the vapour liquid separator 10 of U-tube, make swelling gasbag 22 be located at the spill port 12a's of U-tube as shown in Figure 1
Right side position.Then, open the first source of the gas 24 to insufflation gas in swelling gasbag 22 so that swelling gasbag 22 expands, thus sealing
Second end of U-tube, and detect whether swelling gasbag 22 seals up the second end of U-tube；Usually, the different caliber of correspondence,
When swelling gasbag 22 has corresponding air pressure preset value, when the first air gauge 25 reaches corresponding preset value, close the first gas
Source 24 pressurize, thus ensure that the second end of U-tube is in sealing state.
Specifically, the detection to the U-tube of two ends sealing comprises the steps：First, open the second source of the gas 32, to U-shaped
Inflate in tube cavity；Then adjust the air pressure of the second air gauge 34, make the blowing pressure reach pressure value set in advance（Generally
0.1Mpa）；After flow of aerating air is stable, reads the numerical value of effusion meter 33 and contrast with acceptance value.When the numerical value of effusion meter 33 is big
In or be equal to acceptance value or acceptability limit and be believed that vapour liquid separator is qualified；When the numerical value of effusion meter 33 is less than acceptance value
Or then it is assumed that vapour liquid separator 10 is unqualified during acceptability limit.Acceptance value or acceptability limit can be calculated by understanding, or
Person is obtained by direct experiment, and the vapour liquid separator qualified using additive method detection is adopted with the detection method of the present invention,
Flow of aerating air is counted, thus obtaining acceptance value.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect：
The detection means of the spill port of the vapour liquid separator according to the present invention and detection method, cross and adopt Inflatable sealing device
Extend to the second end from the first end of U-tube, thus the second end sealing to U-tube in the outside of vapour liquid separator, then adopt
With sealing-plug, the first end of U-tube is sealed so that U-tube two ends all seal.Using detection apparatus for aeration, two ends are all sealed
U-tube in inflate, gas can only enter inside vapour liquid separator from balance pipe and spill port and be in communication with the outside, and works as oil return
From U-tube, during hole plug, under certain air pressure, enter the flow of vapour liquid separator（I.e. flow of aerating air）It is substantially reduced, according to
This is judging whether spill port blocks.Achieve vapour liquid separator nondestructive testing, can effectively reduce the event after sale of vapour liquid separator
Barrier rate, improve product quality.And testing result is intuitively reacted by flow value, detection method is simple and quick, Ke Yiyou
Effect improves detection efficiency.In addition, the detection means of the present invention and detection method power resources are all gas pressures, need not any electricity
Device original paper, reducing energy consumption, save inspection cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (14)
1. a kind of detection means of the spill port of vapour liquid separator, described vapour liquid separator (10) includes housing (11) and escape pipe
(12), described spill port (12a) is located on described escape pipe (12), and the first end of described escape pipe (12) is located at described housing
(11) outside, the second end of described escape pipe (12) is located at the inside of described housing (11)；It is characterized in that, described detection dress
Put including：
Sealing device (20), the two ends sealing to described escape pipe (12)；
Detection apparatus for aeration (30), the inner chamber of described escape pipe (12) to two ends sealing is inflated and is detected flow of aerating air, when filling
When throughput is less than acceptance value, judge that described spill port (12a) blocks, thus judging that vapour liquid separator (10) is unqualified, conversely,
When flow of aerating air is more than or equal to acceptance value, then judge that vapour liquid separator (10) is qualified.
2. detection means according to claim 1 is it is characterised in that described sealing device includes：
First sealing device, the first end sealing to described escape pipe (12)；
Second sealing device, the second end sealing to described escape pipe (12).
3. detection means according to claim 2 it is characterised in that
Described second sealing device is Inflatable sealing device, and the first end from described escape pipe (12) for the described Inflatable sealing device is prolonged
Reach the second end with the second end sealing to described escape pipe (12).
4. detection means according to claim 3 is it is characterised in that described Inflatable sealing device includes：
Bulge, expands to seal the second end of described escape pipe (12)；
Operating portion, extends to the second end from the first end of described escape pipe (12), and to the operation of described bulge so that described swollen
Swollen portion expands.
5. detection means according to claim 4 it is characterised in that
Described bulge is swelling gasbag (22)；
Described operating portion includes the first connecting tube (23)；
The first end of described first connecting tube (23) extends to described escape pipe (12) from the first end of described escape pipe (12)
Two ends, and be connected with described swelling gasbag (22)；Second end of described first connecting tube (23) is used for and the first source of the gas (24)
Connection.
6. detection means according to claim 5 is it is characterised in that described operating portion also includes：
First air gauge (25), is connected on described first connecting tube (23) to control the air pressure of described swelling gasbag (22).
7. detection means according to any one of claim 1 to 6 is it is characterised in that described detection apparatus for aeration (30)
Including：
The intracavity inter-connection of the second connecting tube (31), the first end of described second connecting tube (31) and described escape pipe (12), institute
The second end stating the second connecting tube (31) is used for connecting with the second source of the gas (32)；
Effusion meter (33), is connected on described second connecting tube (31) to detect the gas stream in described second connecting tube (31)
Amount.
8. detection means according to claim 7 is it is characterised in that described detection apparatus for aeration (30) also includes：
Second air gauge (34), is connected on described second connecting tube (31) to control the gas in described second connecting tube (31)
Pressure.
9. detection means according to claim 8 is it is characterised in that described effusion meter (33) is spinner flowmeter.
10. detection means according to claim 2 it is characterised in that
First sealing device is sealing-plug (21).
A kind of 11. detection methods of the spill port of vapour liquid separator are it is characterised in that the method comprising the steps of：
Step S10：Seal the two ends of escape pipe (12) using sealing device；
Step S20：In the described escape pipe (12) being sealed to two ends using detection apparatus for aeration (30), insufflation gas detecting are filled
Throughput, when flow of aerating air is less than acceptance value, judges that described spill port (12a) blocks, thus judging vapour liquid separator (10)
Unqualified, conversely, when flow of aerating air is more than or equal to acceptance value, then judging that vapour liquid separator (10) is qualified.
12. detection methods according to claim 11 are it is characterised in that described step S10 specifically includes：
Step S11：Second end is extended to from the first end of described escape pipe (12) using Inflatable sealing device and gives vent to anger to described
Second end sealing of pipe (12)；
Step S12：Using sealing-plug (21), the first end of described escape pipe (12) is sealed.
13. detection methods according to claim 12 are it is characterised in that described step S11 specifically includes：
Step S111：First connecting tube (23) is connected with the end of swelling gasbag (22) first end from described escape pipe (12)
Extend to the second end；
Step S112：Open the first source of the gas (24) to insufflation gas in described swelling gasbag (22) so that described swelling gasbag (22)
Second end of escape pipe described in Expansion sealing (12)；
Step S113：When the air pressure of the first air gauge (25) reaches the first preset value, close the pressurize of described first source of the gas (24).
14. detection methods according to claim 11 are it is characterised in that described step S20 specifically includes：
Step S21：Open the second source of the gas (32), inflate in described escape pipe (12) inner chamber；
Step S22：The air pressure adjusting the second air gauge (34) reaches the second preset value；
Step S23：Read the numerical value of effusion meter (33) and contrast with acceptance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397972.4A CN104422570B (en) | 2013-09-04 | 2013-09-04 | Detection device and detection method for oil return hole of gas-liquid separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397972.4A CN104422570B (en) | 2013-09-04 | 2013-09-04 | Detection device and detection method for oil return hole of gas-liquid separator |
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| CN104422570A CN104422570A (en) | 2015-03-18 |
| CN104422570B true CN104422570B (en) | 2017-02-08 |
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| CN201310397972.4A Expired - Fee Related CN104422570B (en) | 2013-09-04 | 2013-09-04 | Detection device and detection method for oil return hole of gas-liquid separator |
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| CN110987397B (en) * | 2019-12-16 | 2021-12-24 | 宁波奥克斯电气股份有限公司 | Method and device for detecting oil return hole of gas-liquid separator |
| CN113790879B (en) * | 2021-09-14 | 2024-02-13 | 湖北三江航天万山特种车辆有限公司 | Device and method for detecting unobstructed gas path |
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