CN203587298U - Pipeline gas tightness detection device - Google Patents
Pipeline gas tightness detection device Download PDFInfo
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- CN203587298U CN203587298U CN201320800980.4U CN201320800980U CN203587298U CN 203587298 U CN203587298 U CN 203587298U CN 201320800980 U CN201320800980 U CN 201320800980U CN 203587298 U CN203587298 U CN 203587298U
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- air tightness
- detecting air
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- 238000001514 detection method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 33
- 230000000903 blocking effect Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model provides a pipeline gas tightness detection device, include: a plugging part for sealing the air outlet of the detected pipeline; the water tank, the plugging part and the pipeline to be detected are positioned below the liquid level in the water tank; and the air inlet pipe is communicated with an air inlet of the detected pipeline. Use the utility model provides a during pipeline gas tightness detection device, the staff need let in gas in to being detected the pipeline through the intake pipe, then observe and be detected each department of pipeline, especially whether there is the gas leakage phenomenon in the junction, if do not have the bubble to produce in the water tank, then explain that to be detected the gas tightness of pipeline good, can be used for the evacuation to use. If the gas introduced into the detected pipeline becomes bubbles in water and overflows, the air tightness of the detected pipeline is poor, and the detected pipeline cannot be used for vacuumizing. The air outlet of the detected pipeline is sealed by the plugging part, so that the air cannot overflow from the air outlet of the detected pipeline, and the use reliability of the pipeline air tightness detection device is ensured.
Description
Technical field
The utility model relates to pipeline detection technique field, more specifically, relates to a kind of device for detecting air tightness of pipeline.
Background technology
The off-premises station of air-conditioning, after completing assembling, can adopt vacuum pump to vacuumize processing to system.Before vacuumizing processing, need to be by all kinds of flexible pipes that vacuumize by many siphunculus road (for example: six siphunculus roads) be connected with vacuum pump.Therefore, whether the impermeability on many siphunculus road well affects the effect vacuumizing and the work efficiency vacuumizing.If the poor air-tightness on many siphunculus road,, can cause cannot to system vacuumize or system in residual air do not take out to the greatest extent, after refrigerant injected system, residual air affect the purity of refrigerant, thus the Energy Efficiency Ratio of reduction air-conditioning.
Take six siphunculus roads is example, and six siphunculus Lu Weiwu joint stainless-steel pipes are welded, and because finding easily appears leak source and be difficult in stainless-steel pipe weld, thereby has a strong impact on the effect vacuumizing.In prior art, be not also useful on the bubble-tight pick-up unit that detects many siphunculus road.
Utility model content
The utility model aims to provide a kind of device for detecting air tightness of pipeline, cannot the bubble-tight problem of signal piping in prior art to solve.
For solving the problems of the technologies described above, the utility model provides a kind of device for detecting air tightness of pipeline, comprising: for sealing the portion of blocking up of the gas outlet of detected pipeline; Water tank, block up portion and detected pipeline are positioned at the liquid level below of water tank; Draft tube, is communicated with the air intake opening of detected pipeline.
Further, device for detecting air tightness of pipeline also comprises gas supply part, and gas supply part is communicated with draft tube.
Further, device for detecting air tightness of pipeline also comprises switch valve, and switch valve is arranged between gas supply part and draft tube.
Further, gas supply part is air pump.
Further, gas supply part is compressed gas cylinder.
Further, the portion of blocking up comprises: O-ring seal, and O-ring seal is arranged on the opening part of the gas outlet of detected pipeline; Gland bonnet, gland bonnet is located at the place, gas outlet of detected pipeline, and O-ring seal is between gland bonnet and detected pipeline; For being detected the first fixing fixed cover of pipeline and gland bonnet, the first fixed cover is set in the outside of gland bonnet.
Further, the first fixed cover comprises: the first holder; The second holder, the first end of the first holder is connected pivotly with the first end of the second holder, and between the first holder and the second holder, is formed for the grasping part of fixing detected pipeline and gland bonnet; Web member, the second end of the first holder is connected by web member with the second end of the second holder.
Further, the portion of blocking up is rubber plug.
Further, device for detecting air tightness of pipeline also comprises compressed air joint, and draft tube is communicated with the air intake opening of detected pipeline by compressed air joint.
Further, device for detecting air tightness of pipeline also comprises for being detected the second fixing fixed cover of pipeline and compressed air joint.
The portion of blocking up in the utility model is for sealing the gas outlet of detected pipeline, and block up portion and detected pipeline are positioned at the liquid level below of water tank, and draft tube is communicated with the air intake opening of detected pipeline.While using the device for detecting air tightness of pipeline in the utility model, staff need to pass into gas by draft tube in detected pipeline, then the detected pipeline of observation everywhere, particularly whether junction exists gas leak phenomenon, if there is no Bubble formation in water tank, the impermeability of the detected pipeline of explanation is good, can be for vacuumizing use.If pass into gas in detected pipeline, become bubble overflow in water, the detected pipeline poor air-tightness of explanation, can not be for vacuumizing use.Because the portion of blocking up is by the gas outlet sealing of detected pipeline, thereby guarantee that gas can not overflow from the gas outlet of detected pipeline, thereby guaranteed the dependability of device for detecting air tightness of pipeline.Meanwhile, the device for detecting air tightness of pipeline in the utility model has feature simple in structure, low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the annexation schematic diagram of each parts in the device for detecting air tightness of pipeline in the utility model; And
Fig. 2 has schematically shown the structural representation of the portion of blocking up in the utility model, the second fixed cover, compressed air joint and detected pipeline.
Reference numeral in figure: 10, the portion of blocking up; 11, O-ring seal; 12, gland bonnet; 13, the first fixed cover; 13a, the first holder; 13b, web member; 20, water tank; 30, draft tube; 40, gas supply part; 50, switch valve; 60, compressed air joint; 70, the second fixed cover; 80, detected pipeline.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
The utility model provides a kind of device for detecting air tightness of pipeline.As depicted in figs. 1 and 2, device for detecting air tightness of pipeline comprises the portion of blocking up 10, water tank 20 and draft tube 30, block up portion 10 for sealing the gas outlet of detected pipeline 80, block up portion 10 and detected pipeline 80 is positioned at the liquid level below of water tank 20, and draft tube 30 is communicated with the air intake opening of detected pipeline 80.While using the device for detecting air tightness of pipeline in the utility model, staff need to pass into gas by draft tube 30 in detected pipeline 80, then the detected pipeline 80 of observation everywhere, particularly whether junction exists gas leak phenomenon, if there is no Bubble formation in water tank 20, the impermeability of the detected pipeline 80 of explanation is good, can be for vacuumizing use.If pass into gas in detected pipeline 80, become bubble overflow in water, detected pipeline 80 poor air-tightness of explanation, can not be used 80 for vacuumizing.Because the portion of blocking up 10 is by the gas outlet sealing of detected pipeline 80, thereby guarantee that gas can not overflow from the gas outlet of detected pipeline 80, thereby guaranteed the dependability of device for detecting air tightness of pipeline.Meanwhile, the device for detecting air tightness of pipeline in the utility model has feature simple in structure, low cost of manufacture.
Device for detecting air tightness of pipeline in the utility model also comprises gas supply part 40, and gas supply part 40 is communicated with draft tube 30.Owing to being provided with gas supply part 40, thereby can guarantee when carrying out air tightness test, gas can inject in detected pipeline 80 by draft tube 30, thereby guarantee that the interior gas of detected pipeline 80 is sufficient, guarantee the effect of air tightness test, and then improved the dependability of device for detecting air tightness of pipeline.
Preferably, gas supply part 40 is air pump.Air pump passes into the gas in outside air in detected pipeline 80 by draft tube 30, thereby guarantees the detected interior gassy of pipeline 80.In another preferred embodiment, gas supply part 40 is compressed gas cylinder.In compressed gas cylinder, the compressed gas of storage cognition passes in detected pipeline 80 by draft tube 30, so that the detected interior gassy of pipeline 80.Certainly, if the pressure gas in compressed gas cylinder is colored gas, so more contribute to staff's observation test effect.This is because if detected pipeline 80 exists leak source, colored gas can enter in the water of water tank 20 by leak source, makes water variable color, thereby makes detected pipeline 80 gas leak phenomenons more easily observed.
In embodiment as shown in Figure 1, device for detecting air tightness of pipeline also comprises switch valve 50, and switch valve 50 is arranged between gas supply part 40 and draft tube 30.Owing to being provided with switch valve 50, thereby can control the on off operating mode of gas supply part 40 and draft tube 30, staff is by gauge tap valve 50, can select to pass into time and the tolerance of gas in detected pipeline 80, thereby make device for detecting air tightness of pipeline have the advantages that controllability is good, dependability is high.
Preferably, switch valve 50 is retaining valves.Because retaining valve has the function that prevents gas backflow, thereby can prevent that gas in detected pipeline 80 from flowing backwards back in gas supply part 40 by draft tube 30, thereby prevent that reflux gas from polluting the gas in gas supply part 40, or prevent that pipeline 80 internal gas pressures are excessive to be pushed back gas in gas supply part 40 because being detected, to cause affecting the problem that pipeline impermeability detects effect.
In a not shown embodiment, device for detecting air tightness of pipeline does not arrange gas supply part 40, but is provided with switch valve 50 at the inlet end of draft tube 30, and switch valve 50 is retaining valve.Staff uses the method for blowing to draft tube 30 to the interior input gas of detected pipeline 80.Because switch valve 50 is retaining valve, thereby when staff takes a breath, switch valve 50 can cut out, thereby avoid gas in detected pipeline 80 from the inlet end overflow of draft tube 30, thus guaranteed device for detecting air tightness of pipeline dependability, guaranteed the effect that pipeline impermeability detects.
In embodiment as shown in Figure 2, the portion 10 of blocking up comprises O-ring seal 11, gland bonnet 12 and the first fixed cover 13, O-ring seal 11 is arranged on the opening part of the gas outlet of detected pipeline 80, gland bonnet 12 is located at the place, gas outlet of detected pipeline 80, and O-ring seal 11 is between gland bonnet 12 and detected pipeline 80, the first fixed cover 13 is fixing for being detected pipeline 80 and gland bonnet 12, and the first fixed cover 13 is set in the outside of gland bonnet 12.Because the place, gas outlet at detected pipeline 80 is provided with gland bonnet 12, thereby gland bonnet 12 seals up the gas outlet of detected pipeline 80, thereby prevents that the gas in detected pipeline 80 from overflowing from gas outlet.Owing between gland bonnet 12 and the gas outlet of detected pipeline 80, O-ring seal 11 being set, thereby improve the sealing of gland bonnet 12 with detected pipeline 80, by the small gap shutoff of the two junction, thereby improved the sealing property of the portion of blocking up 10.Owing to being provided with the first fixed cover 13, thereby first fixed cover 13 will to be detected pipeline 80 firmly fixing with gland bonnet 12, thereby avoid the problem that causes gland bonnet 12 and detected pipeline 80 to depart from because detected pipeline 80 internal gas pressures are excessive, and then improved the dependability of device for detecting air tightness of pipeline, and guaranteed the effect that pipeline impermeability detects.
In embodiment as shown in Figure 2, the first fixed cover 13 comprises the first holder 13a, the second holder and web member 13b, the first end of the first holder 13a is connected pivotly with the first end of the second holder, and the grasping part that is formed for fixing detected pipeline 80 and gland bonnet 12 between the first holder 13a and the second holder, the second end of the first holder 13a is connected by web member 13b with the second end of the second holder.Because the first holder 13a is connected pivotly with the second holder, thereby the variable size of grasping part, the size of grasping part can be carried out accommodation according to the connection of detected pipeline 80 and gland bonnet 12 like this, thereby guarantees that the first fixed cover 13 can will be detected pipeline 80 and firmly be connected with gland bonnet 12.Staff, by adjusting connector 13b, can adjust the size of grasping part.Preferably, web member is the screw bolt and nut cooperatively interacting.Bolt is located in the second end of the first holder 13a and the second end of the second holder, and nut coordinates with bolt the first holder 13a and the locking of the second holder.
Preferably, the first holder 13a and/or the second holder have the peripheral flange for backstop gland bonnet 12 or 80 motions of detected pipeline.When the first holder and the second holder by gland bonnet 12 and detected pipeline 80 fixing after, the caping of gland bonnet 12 supports and is located on flange.When the gas outlet end of detected pipeline 80 has contraction section, the flange of the opposite side of the first holder 13a and/or the second holder just supports the contraction section place that is located at detected pipeline 80, thereby make gas outlet end and the gland bonnet 12 of detected pipeline 80 be positioned at two side flanges of the first holder 13a and/or the second holder, and then guaranteed the connection reliability of detected pipeline 80 and gland bonnet 12.
Certainly, the portion 10 of blocking up can also be rubber plug.Staff uses rubber plug by the gas outlet sealing of detected pipeline 80.On many siphunculus road, six siphunculus roads (please refer to Fig. 2) for example, staff can select rubber plug by four gas outlet sealings in five gas outlets of detected pipeline 80, then selects O-ring seal 11, gland bonnet 12 and the first fixed cover 13 by the 5th gas outlet sealing of detected pipeline 80.Rubber plug and detected pipeline 80 need to adopt interference fit, to avoid rubber plug to come off from detected pipeline 80.Preferably, the length that rubber plug stretches in detected pipeline 80 is greater than 20mm.
In embodiment as shown in Figure 2, device for detecting air tightness of pipeline also comprises compressed air joint 60, and draft tube 30 is communicated with the air intake opening of detected pipeline 80 by compressed air joint 60.Owing to being provided with compressed air joint 60, thereby guarantee the connection reliability of draft tube 30 with detected pipeline 80, and guaranteed that pressure gas can pass in detected pipeline 80 smoothly, thereby improved the dependability of device for detecting air tightness of pipeline.
In embodiment as shown in Figure 2, device for detecting air tightness of pipeline also comprises for being detected pipeline 80 and the second fixing fixed cover 70 of compressed air joint 60.Preferably, the second fixed cover 70 is identical with the structure of the first fixed cover 13.Due to compressed air joint 60 and detected pipeline 80 is fixing by the second fixed cover 70, thereby guarantee the reliability that gas circuit connects, guaranteed the dependability of device for detecting air tightness of pipeline and the effect that pipeline impermeability detects.
The using method of device for detecting air tightness of pipeline:
Step 1, gas supply part 40, switch valve 50, draft tube 30, compressed air joint 60, block up portion 10, the second fixed cover 70 and detected pipeline 80 are connected, and check whether each several part connects reliably;
Step 2, switch valve 50 is opened, made compressed air pressure reach 0.04-0.05MPa;
Step 3, the detected pipeline 80 that is provided with the portion of blocking up 10 is put into water tank 20, carry out air tight test.
Whether step 4, the detected pipeline 80 of observation have bubble to emerge around.
It should be noted that, because device for detecting air tightness of pipeline relates to pressure vessel, thereby staff must be through abundant training, could operation on duty after grasping method of operating and obtaining job qualification certificate.In use procedure, abnormal if device for detecting air tightness of pipeline occurs, must close immediately gas supply part 40, and the relevant responsible person of the notice processing of following up.
Because the device for detecting air tightness of pipeline in the utility model can detect the impermeability that is detected pipeline 80, thereby on detected pipeline 80(many siphunculus road particularly) detect before using, can guarantee the vacuum effectiveness of detected pipeline 80, thereby in follow-up use, can effectively guarantee product quality and work efficiency, effectively avoid the problem that cannot vacuumize, and improve detection level and quality.In the example of air-conditioning assembling, through device for detecting air tightness of pipeline, detect qualified detected pipeline 80 and be applied in system and vacuumize middle use, can guarantee the refrigerant purity of the system that is fed into and the Energy Efficiency Ratio of air-conditioning.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a device for detecting air tightness of pipeline, is characterized in that, comprising:
Be used for sealing the portion of blocking up (10) of the gas outlet of detected pipeline (80);
Water tank (20), described in block up portion (10) and described detected pipeline (80) be positioned at the liquid level below of described water tank (20);
Draft tube (30), is communicated with the air intake opening of described detected pipeline (80).
2. device for detecting air tightness of pipeline according to claim 1, is characterized in that, described device for detecting air tightness of pipeline also comprises gas supply part (40), and described gas supply part (40) is communicated with described draft tube (30).
3. device for detecting air tightness of pipeline according to claim 2, is characterized in that, described device for detecting air tightness of pipeline also comprises switch valve (50), and described switch valve (50) is arranged between described gas supply part (40) and described draft tube (30).
4. device for detecting air tightness of pipeline according to claim 2, is characterized in that, described gas supply part (40) is air pump.
5. device for detecting air tightness of pipeline according to claim 2, is characterized in that, described gas supply part (40) is compressed gas cylinder.
6. device for detecting air tightness of pipeline according to claim 1, is characterized in that, described in the portion (10) of blocking up comprising:
O-ring seal (11), described O-ring seal (11) is arranged on the opening part of the gas outlet of described detected pipeline (80);
Gland bonnet (12), described gland bonnet (12) is located at the place, gas outlet of described detected pipeline (80), and described O-ring seal (11) is positioned between described gland bonnet (12) and described detected pipeline (80);
Be used for described detected pipeline (80) and fixing the first fixed cover (13) of described gland bonnet (12), described the first fixed cover (13) is set in the outside of described gland bonnet (12).
7. device for detecting air tightness of pipeline according to claim 6, is characterized in that, described the first fixed cover (13) comprising:
The first holder (13a);
The second holder, the first end of described the first holder (13a) is connected pivotly with the first end of described the second holder, and between described the first holder (13a) and described the second holder, is formed for the grasping part of fixing described detected pipeline (80) and described gland bonnet (12);
Web member (13b), the second end of described the first holder (13a) is connected by described web member (13b) with the second end of described the second holder.
8. device for detecting air tightness of pipeline according to claim 1, is characterized in that, described in block up portion (10) for rubber plug.
9. device for detecting air tightness of pipeline according to claim 1, it is characterized in that, described device for detecting air tightness of pipeline also comprises compressed air joint (60), and described draft tube (30) is communicated with the air intake opening of described detected pipeline (80) by described compressed air joint (60).
10. device for detecting air tightness of pipeline according to claim 9, is characterized in that, described device for detecting air tightness of pipeline also comprises for by fixing the second fixed cover (70) of described detected pipeline (80) and described compressed air joint (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800980.4U CN203587298U (en) | 2013-12-05 | 2013-12-05 | Pipeline gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800980.4U CN203587298U (en) | 2013-12-05 | 2013-12-05 | Pipeline gas tightness detection device |
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| Publication Number | Publication Date |
|---|---|
| CN203587298U true CN203587298U (en) | 2014-05-07 |
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| CN201320800980.4U Expired - Fee Related CN203587298U (en) | 2013-12-05 | 2013-12-05 | Pipeline gas tightness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697722A (en) * | 2013-12-05 | 2015-06-10 | 珠海格力电器股份有限公司 | Pipeline gas tightness detection device |
-
2013
- 2013-12-05 CN CN201320800980.4U patent/CN203587298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697722A (en) * | 2013-12-05 | 2015-06-10 | 珠海格力电器股份有限公司 | Pipeline gas tightness detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20211205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |