CN204228364U - A kind of air tightness detection apparatus - Google Patents
A kind of air tightness detection apparatus Download PDFInfo
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- CN204228364U CN204228364U CN201420515393.5U CN201420515393U CN204228364U CN 204228364 U CN204228364 U CN 204228364U CN 201420515393 U CN201420515393 U CN 201420515393U CN 204228364 U CN204228364 U CN 204228364U
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Abstract
The utility model discloses a kind of air tightness detection apparatus, comprise accurate filter, the first precise pressure-reducing valve, the second precise pressure-reducing valve, the first gas source feed valve, the second gas source feed valve and test branch road; Test branch road comprises normal end, test lead, pipe pressure balanced valve, pressure unit and little differential pressure sensor; Accurate filter is connected with the first precise pressure-reducing valve, the second precise pressure-reducing valve respectively, and test branch road is connected with the first precise pressure-reducing valve by the first gas source feed valve, is connected with the second precise pressure-reducing valve by the second gas source feed valve; Normal end and test lead are provided with the identical inner chamber of volume; Pressure unit is connected with the path between normal end and test lead; Little differential pressure sensor is connected with normal end and test lead respectively.Adopt air tightness detection apparatus of the present utility model, can the slip that same tank body successively carries out under two different pressures environment be detected.
Description
Technical field
The utility model relates to a kind of air tightness detection apparatus.
Background technology
The different slip of cavity under high pressure and low pressure of encapsulant has very large difference, at present, need to detect in different environments to the detection of cavity in high pressure and low pressure seal performance, and then cause cavity sealing propertytest program complicated, checkout equipment cost is high.
Utility model content
The utility model provides a kind of air tightness detection apparatus, can detect under the environment of high pressure or low pressure to the impermeability of tank body.
The utility model provides a kind of air tightness detection apparatus, comprises accurate filter, the first precise pressure-reducing valve, the second precise pressure-reducing valve, the first gas source feed valve, the second gas source feed valve and test branch road; Described test branch road comprises normal end, test lead, pipe pressure balanced valve, pressure unit and little differential pressure sensor;
Described accurate filter is connected with described first precise pressure-reducing valve, described second precise pressure-reducing valve respectively, and shown test branch road is connected with described first precise pressure-reducing valve by the first gas source feed valve, is connected with described second precise pressure-reducing valve by the second gas source feed valve;
Described normal end and described test lead are provided with the identical inner chamber of volume, described normal end is connected with described first gas source feed valve, the second gas source feed valve, and described test lead is connected with described first gas source feed valve, the second gas source feed valve by described pipe pressure balanced valve; Described pressure unit is connected with the path between described normal end and test lead; Described little differential pressure sensor is connected with described normal end and test lead respectively.
Further, also comprise bus-bar, described test branch road also comprises branch road source of the gas valve; Described bus-bar respectively with described first gas source feed valve, the second gas source feed valve downlink connection; Described normal end is connected with described bus-bar by described branch road source of the gas valve; Described test lead is connected with described branch road source of the gas valve by described pipe pressure balanced valve.
Further, described test branch road has two at least, and the described test branch road of at least two is connected with described bus-bar respectively.
Further, described test branch road is 4.
The beneficial effects of the utility model are: adopt air tightness detection apparatus of the present utility model, because pick-up unit is provided with the first precise pressure-reducing valve and the second precise pressure-reducing valve, pick-up unit can be detected to the slip that same tank body successively carries out under two different pressures environment.The air tightness detection apparatus structure of the present embodiment is simple, easy to use, production efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of the utility model in another kind of embodiment.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail below by embodiment.
Embodiment one
As shown in Figure 1, a kind of air tightness detection apparatus, comprises accurate filter 11, first precise pressure-reducing valve 21, second precise pressure-reducing valve 22, first gas source feed valve 31, second gas source feed valve 31 and test branch road.Test branch road comprises normal end 41, test lead 42, pipe pressure balanced valve 421, pressure unit 411 and little differential pressure sensor 43.
Accurate filter 11 is connected with the first precise pressure-reducing valve 21, second precise pressure-reducing valve 22 respectively, and test branch road is connected with the first precise pressure-reducing valve 21 by the first gas source feed valve 31, is connected with the second precise pressure-reducing valve 22 by the second gas source feed valve 32.
Normal end 41 and test lead 42 are provided with the identical inner chamber of volume, normal end 41 is connected with the first gas source feed valve 31, second gas source feed valve 32, test lead 42 is connected with the first gas source feed valve 31, second gas source feed valve 32 by pipe pressure balanced valve 421, before pipe pressure balanced valve 421 ensures test, test lead 42 is identical with normal end 41 pressure, and during test, pipeline disconnects and makes test lead 42 and normal end 41 end pressure independently by it.Pressure unit 411 is connected with the path between normal end 41 and test lead 42, for the pressure of whole UNICOM environment between examination criteria end 41 and test lead 42.Little differential pressure sensor 43 is connected with normal end 41 and test lead 42 respectively, for the differential pressure of examination criteria end 41 with test lead 42.
First precise pressure-reducing valve 21 and the second precise pressure-reducing valve 22, for gas atmosphere is limited in low pressure or high pressure, can be arranged according to demand voluntarily.In the utility model, the compressed-air actuated air pressure after filtration is limited in required hyperbar such as 200KPa by the first precise pressure-reducing valve 21, and the compressed-air actuated air pressure after filtration is limited in required infrabar such as 30KPa by the second precise pressure-reducing valve 22.
Adopt the airtight inspection of detection tank body of the air tightness detection apparatus of the present embodiment, the first gas source feed valve 31, second gas source feed valve 32 is in off-state before testing, and pipe pressure balanced valve 421 is in conducting state, and its concrete testing process is as follows:
1), pressurized air leads to accurate filter 11, and the contaminant filter in pressurized air below 0.01 μm, is namely filtered out the impurity of in pressurized air more than 0.01 μm by accurate filter 11.
2), the first precise pressure-reducing valve 21 by filter after compressed-air actuated air pressure be limited in required hyperbar such as 200KPa, the second precise pressure-reducing valve 22 by filter after compressed-air actuated air pressure be limited in required infrabar such as 30KPa.
3) gas after, the first gas source feed valve 31 or the second gas source feed valve 32 control pressure limiting leads to normal end 41 and test lead 42, the pressure detected at pressure unit 411 steadily after off-tube pressure balanced valve 421, and of conducting in the first gas source feed valve 31 or the second gas source feed valve 32;
4), the differential pressure value of differential pressure transmitter 43 examination criteria end 41 and test lead 42, if the differential pressure value detected within the time of setting is in the scope preset, then tank body is qualified tank body.
Embodiment two
As shown in Figure 2, from different being of embodiment one pick-up unit: the pick-up unit of the present embodiment also comprises bus-bar 5, and test branch road also comprises branch road source of the gas valve 44.Bus-bar 5 is connected with the first gas source feed valve 31, second gas source feed valve 32 respectively.Normal end 41 is connected with bus-bar 5 by branch road source of the gas valve 44, and test lead 42 is connected with branch road source of the gas valve 44 by pipe pressure balanced valve 421.
Test branch road in a kind of realization and have two at least, the test branch road of at least two is connected with bus-bar 5 respectively, and bus-bar 5 is consistent for the air-flow and air pressure regulating each test branch road.Test branch road in this real embodiment and be preferably 4.
Adopt the airtight inspection of detection tank body of the air tightness detection apparatus of the present embodiment, the original state before detection is that the first gas source feed valve 31, second gas source feed valve 32 and branch road source of the gas valve 44 are all in off-state, and pipe pressure balanced valve 421 is in on-state.
Concrete testing process is as follows:
1), pressurized air leads to accurate filter 11, and the contaminant filter in pressurized air below 0.01 μm, is namely filtered out the impurity of in pressurized air more than 0.01 μm by accurate filter 11.
2), the first precise pressure-reducing valve 21 by filter after compressed-air actuated air pressure be limited in required hyperbar such as 200KPa, the second precise pressure-reducing valve 22 by filter after compressed-air actuated air pressure be limited in required infrabar such as 30KPa.
3) gas after, the first gas source feed valve 31 or the second gas source feed valve 32 control pressure limiting leads to bus-bar 5.
4), branch road source of the gas valve 44 ventilates, gas flow normal end 41 and test lead 42, the pressure detected at pressure unit 411 steadily after disconnected branches source of the gas valve 44 and pipe pressure balanced valve 421.
5), the differential pressure value of differential pressure transmitter 43 examination criteria end 41 and test lead 42, if the differential pressure value detected within the time of setting is in the scope preset, then tested tank body is qualified tank body.
6), detected after, the ventilation of pipe pressure balanced valve 421 makes normal end 41 and test lead 42 UNICOM, then will be detected tank body disengaging pick-up unit, and and make pick-up unit get back to original operating state.
The air tightness detection apparatus of the present embodiment can detect the slip that same tank body successively carries out under two different pressures environment; When each group of test lead condition is the same, can ensure that each group of test lead is to the consistance of the same pot body testing result; And be originally that the air tightness detection apparatus of embodiment can detect multiple tank body simultaneously, improve production efficiency.
The air tightness detection apparatus structure of the present embodiment is simple, easy to use, production efficiency is high, and simple pipe system can ensure the impermeability of pick-up unit self.
Above content is in conjunction with concrete embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made.
Claims (4)
1. an air tightness detection apparatus, is characterized in that, comprises accurate filter, the first precise pressure-reducing valve, the second precise pressure-reducing valve, the first gas source feed valve, the second gas source feed valve and test branch road; Described test branch road comprises normal end, test lead, pipe pressure balanced valve, pressure unit and little differential pressure sensor;
Described accurate filter is connected with described first precise pressure-reducing valve, described second precise pressure-reducing valve respectively, and shown test branch road is connected with described first precise pressure-reducing valve by the first gas source feed valve, is connected with described second precise pressure-reducing valve by the second gas source feed valve;
Described normal end and described test lead are provided with the identical inner chamber of volume, described normal end is connected with described first gas source feed valve, the second gas source feed valve, and described test lead is connected with described first gas source feed valve, the second gas source feed valve by described pipe pressure balanced valve; Described pressure unit is connected with the path between described normal end and test lead, and described little differential pressure sensor is connected with described normal end and test lead respectively.
2. pick-up unit as claimed in claim 1, it is characterized in that, also comprise bus-bar, described test branch road also comprises branch road source of the gas valve; Described bus-bar respectively with described first gas source feed valve, the second gas source feed valve downlink connection; Described normal end is connected with described bus-bar by described branch road source of the gas valve; Described test lead is connected with described branch road source of the gas valve by described pipe pressure balanced valve.
3. pick-up unit as claimed in claim 2, it is characterized in that, described test branch road has two at least, and the described test branch road of at least two is connected with described bus-bar respectively.
4. pick-up unit as claimed in claim 3, it is characterized in that, described test branch road is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515393.5U CN204228364U (en) | 2014-09-05 | 2014-09-05 | A kind of air tightness detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515393.5U CN204228364U (en) | 2014-09-05 | 2014-09-05 | A kind of air tightness detection apparatus |
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| CN204228364U true CN204228364U (en) | 2015-03-25 |
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| CN201420515393.5U Active CN204228364U (en) | 2014-09-05 | 2014-09-05 | A kind of air tightness detection apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289672A (en) * | 2016-08-30 | 2017-01-04 | 迈得医疗工业设备股份有限公司 | Pressure-regulating device and detection equipment |
| CN106768648A (en) * | 2016-12-07 | 2017-05-31 | 大唐东北电力试验研究所有限公司 | Buried pipeline seepage simulation experiment system |
| CN110118636A (en) * | 2019-05-21 | 2019-08-13 | 佛山市爱森宝机电设备有限公司 | The airtight testboard of airbed electric air pump |
-
2014
- 2014-09-05 CN CN201420515393.5U patent/CN204228364U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289672A (en) * | 2016-08-30 | 2017-01-04 | 迈得医疗工业设备股份有限公司 | Pressure-regulating device and detection equipment |
| CN106289672B (en) * | 2016-08-30 | 2019-01-08 | 迈得医疗工业设备股份有限公司 | Pressure-regulating device and detection device |
| CN106768648A (en) * | 2016-12-07 | 2017-05-31 | 大唐东北电力试验研究所有限公司 | Buried pipeline seepage simulation experiment system |
| CN110118636A (en) * | 2019-05-21 | 2019-08-13 | 佛山市爱森宝机电设备有限公司 | The airtight testboard of airbed electric air pump |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: SHENZHEN AOKY MACHINE-ELECTRICITY R&D CO., LTD. Document name: Notification to Pay the Fees |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170614 Address after: 516000 1 Industrial Park, Huiyang three and Economic Development Experimental Zone, Guangdong, Huizhou Patentee after: LODA TECHNOLOGY CO., LTD. Address before: 518110, Shenzhen, Guangdong province Baoan District Guanlan Street orange community, orange Ridge Village Phase Industrial Park, No. 1 (room 402) Patentee before: SHENZHEN AOKY MACHINE-ELECTRICITY R&D CO., LTD. |
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| TR01 | Transfer of patent right |