CN107806971A - A kind of air tightness detection system - Google Patents
A kind of air tightness detection system Download PDFInfo
- Publication number
- CN107806971A CN107806971A CN201711221027.3A CN201711221027A CN107806971A CN 107806971 A CN107806971 A CN 107806971A CN 201711221027 A CN201711221027 A CN 201711221027A CN 107806971 A CN107806971 A CN 107806971A
- Authority
- CN
- China
- Prior art keywords
- bellows
- module
- detection system
- air tightness
- tightness detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Abstract
The invention discloses a kind of air tightness detection system, is related to bellows air-leakage test domain technology field.The air tightness detection system, including, airtight monitor station, inflator module, pressure detecting module, processor, contrast module and terminating machine.This programme forms certain pressure full of bellows by gas in bellows, then stop inflation after by sensor determine bellows in pressure change, come judge bellows whether gas leakage.And pass through one changing value Δ P of systemic presupposition so that the automatic decision more than Δ P is substandard product.Bellows will not be polluted in detection process, and detection process automaticity is higher, saves human input, and accelerate detection speed.
Description
Technical field
The present invention relates to bellows air-leakage test field, more particularly to a kind of air tightness detection system.
Background technology
Bellows is conventional flexible member.As shown in figure 1, whole body is made up of some end to end crests 12,
Seam 11 is respectively equipped with the both ends of the length direction of bellows 1.Seam 11 is used to be connected with other elements.
Bellows 1 is generally used for the transport of fluid, therefore, it is necessary to be carried out to bellows 1 after actual production bellows 1
Air-leakage test.Detecting qualified qualified products could be sold and be used.
The air-leakage test of bellows is frequently with " dyeing method ".
Dyeing method comprises the following steps that：
First, staff seals one end of bellows to be detected, then liquid of the note with flag colors into pipe；
Then, the bellows other end is blocked, and whole section of bellows is immersed in pond；
After a period of time, whether the water observed in pond is colored, and illustrates bellows if the water in pond is colored
It is unqualified, it is on the contrary then qualified.
But need to clean bellows after using " dyeing method ", and dyeing is easily retained in the crest of bellows
Liquid, not easy cleaning.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of air tightness detection system,
It is not easy to pollute bellows during whether detection bellows is qualified, so as to reduce after detection to the cleaning step of bellows.
In order to solve the above technical problems, the present invention provides a kind of air tightness detection system, including,
Airtight monitor station, place is provided for the detection of bellows；
Inflator module, on airtightness test table, the seam of seal bellows end, and by seam into bellows
Inflation；
Pressure detecting module, pressure in real-time measuring bellow simultaneously change into electric signal；
Processor, receive electric signal and change into data signal and obtain pressure values, by the pressure values measured in real time with it is internal
The threshold value of setting is contrasted, and when pressure values reach default threshold value, is sent to inflator module and is stopped inflation signal；
Contrast module, in processor, when processor sends stopping inflation signal, mark current pressure value P1, warp
Current pressure value P2 is marked after t after a while, takes P1-P2=Δs P1, by Δ P1Compared with preset value Δ P, as Δ P1＞ Δs
Alarm signal is sent during P；
Siren, alarm signal is received, and warning is sent to staff, alarm illustrates that this product does not conform to when occurring
Lattice；
Terminating machine, real-time reception, the pressure values of storage processor conversion, and the information of collection is showed into staff.
The technical scheme that further limits of the present invention is：Pressure detecting module is located at inflator module closure stop portion.
Further, terminating machine includes count information module, and record detects the number of bellows, and by detection process
Digital record is stored.
A kind of preceding described air tightness detection system, terminating machine include display module, and display module includes display screen, show
The presentation of information that display screen curtain records count information module out obtains for staff.
A kind of preceding described air tightness detection system, the warning way of siren is sound or visual alarm.
A kind of preceding described air tightness detection system, airtight monitor station are connected with terminating machine by wired or wireless network.
A kind of preceding described air tightness detection system, terminating machine are connected with mobile terminal by wireless network.
The beneficial effects of the invention are as follows：
In this programme when carrying out air-leakage test to bellows, by temporary sealing bellows, and rushed into bellows
Enter gas to improve the pressure in bellows.The gas poured can be the gas that air etc. can be discharged directly so that detection
During do not easily cause air pollution.
And in detection by the pressure in sensor the real time measure bellows, and pass through processor automatic decision ripple
Pressure in pipe judges, alarm can be sent when being determined as substandard product.Therefore staff is only needed according to certain step
Suddenly bellows is arranged on airtight monitor station, judges whether the bellows of current detection is qualified by receiving alarm.
So that the automation for the step of bellows detects improves.Staff also becomes apparent to the whether qualified judgement of bellows, letter
It is single.
The sensor for being used to measure intraductal pressure value wherein in pressure detecting module is to insert ripple from the both ends of bellows
Pipe, therefore in practical operation, can insert more pressure sensors when installing bellows along Bellows Length, make
More multigroup pressure data can be measured along its length by obtaining in bellows, and mean value calculation is carried out by processor, can be more accurate
True obtains the change of ripple intraductal pressure.
Brief description of the drawings
Fig. 1 is the schematic diagram of bellows to be detected；
Fig. 2 is the schematic diagram of airtight monitor station structure；
Fig. 3 is the schematic diagram of gas tube group structure；
Fig. 4 is the schematic diagram of the gas-charging connection structure of embodiment 1；
Fig. 5 is the schematic diagram of the gas-charging connection structure of embodiment 2；
Fig. 6 is the flow chart for representing air tightness detection system principle.
Wherein：1st, bellows；11st, seam；12nd, crest；2nd, airtight monitor station；21st, inflator module；211st, gas tube group；
212nd, gas tube；2121st, positive gas port；2122nd, lateral gas port；2123rd, stopper slot；2124th, spigot surface；2125th, block edge；213、
Gas-charging connection；214th, check (non-return) valve；2141st, check sheet；2142nd, beam；215th, sealing ring；22nd, pressure detecting module；23rd, processor；
24th, siren；3rd, terminating machine；31st, contrast module；32nd, count information module；33rd, display module；4th, mobile terminal.
Embodiment
Embodiment 1：
A kind of air-leakage test joint that the present embodiment provides, structure is as shown in the figure.
Wherein identical parts are presented with like reference characters.It should be noted that the word used below in description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and
" outer " is referred respectively to towards or away from the direction of particular elements geometric center.
The air-leakage test joint, including,
Gas tube 212, one end are used for the seam 11 for inserting bellows, other end connection air blower；
Inflation inlet, it is distributed in gas tube 212 and inserts on the body of seam 11；
Check (non-return) valve 214, on inflation inlet, it is allowed to which air-flow enters bellows from gas tube 212, prevents air-flow from bellows
It is interior to enter gas tube 212；
Sealing ring 215, the inwall with bellows on the outer tube wall of gas tube 212 are brought into close contact.
Sealing ring 215 is just breathed out in the crest 12 of embedded bellows, and is bonded with the inwall of crest 12.
The stopper slot for supplying the inlay card of sealing ring 215 is provided with the outer tube wall of gas tube 212 along the length direction of gas tube 212
2123。
Inflation inlet includes positive gas port 2121 and lateral gas port 2122, and positive gas port 2121 is located at the face ripple of gas tube 212
On the end face of line pipe inner space, lateral gas port 2122 is distributed in sealing ring 215 between the positive place end face of gas port 2121
On tube wall.
Gas tube 212 inserts the end face edge chamfering of the one end of seam 11, forms spigot surface 2124.
Check (non-return) valve 214 includes the beam 2142 on inflation inlet and the check sheet 2141 on beam 2142, check sheet
2141 cover and close off inflation inlet outside the tube wall of gas tube 212.
Sealing ring 215 is that elastomeric material (such as rubber) is made, and is closed with the matching size of crest 12.Because the half of seam 11
Footpath is less than the radius of crest 12, therefore seam 11, when by sealing ring 215, elastic deformation occurs for the stress of sealing ring 215, and
Crest 12 is full of just by rear reinstatement in seam 11, and fitted with the inwall of crest 12.
The material of check sheet 2141 elects rubber as, or other have the material of certain pliability and elasticity.It can meet
In gas replenishment process, inner air tube can push up open check sheet 2141 and flow into bellows, and the gas in bellows after stopping inflating
Check sheet 2141 is pressed to be fitted on inflation inlet when pressing big and sealed.
Positive gas port 2121 coordinates simultaneously with lateral gas port 2122, is inflated in different directions into bellows, lateral gas
The air-flows of the outflow of mouth 2122 flow along the inwall of bellows crest 12, finally import in the primary air that positive gas port 2121 is gone out, carry
The high aeration speed of inflation inlet.
Embodiment 2：
A kind of air-leakage test joint, the difference with embodiment 1 are that spigot surface 2124, which stretches and formed to surrounding, to be blocked
The block edge 2125 of check (non-return) valve 214.
Embodiment 3：
A kind of airtightness test table, including the air-leakage test joint of embodiment 1 or embodiment 2.
Embodiment 4：
A kind of air tightness detection system, air tightness detection system, including,
Airtight monitor station 2, the detection for bellows 1 provide place；
Inflator module 21, on airtightness test table, the seam 11 of the end of seal bellows 1, and by seam 11 to
Inflated in bellows 1；
Pressure detecting module 22, pressure in real-time measuring bellow 1 simultaneously change into electric signal；
Processor 23, receive electric signal and change into data signal and obtain pressure values, by the pressure values measured in real time with it is interior
The threshold value of portion's setting is contrasted, and when pressure values reach default threshold value, is sent to inflator module 21 and is stopped inflation signal；
Contrast module 31, in processor 23, when processor 23 sends stopping inflation signal, mark current pressure value
P1, current pressure value P2 is marked after t after a while, takes P1-P2=Δs P1, by Δ P1Compared with preset value Δ P, work as Δ
P1Alarm signal is sent during ＞ Δ P；
Siren 24, alarm signal is received, and warning is sent to staff, alarm illustrates that this product does not conform to when occurring
Lattice；
Terminating machine 3, the pressure values that real-time reception, storage processor 23 convert, and the information of collection is showed into work people
Member.
Pressure detecting module 22 is blocked at seam 11 located at inflator module 21.
Wherein, terminating machine 3 includes count information module 32, and record detects the number of bellows 1, and by detection process
Digital record is stored.Terminating machine 3 also includes display module 33, and display module 33 includes display screen, and display screen will be counted
The presentation of information that number storage module 32 records out obtains for staff.The warning way of siren 24 is that sound or vision are warned
Show.Airtight monitor station 2 is connected with terminating machine 3 by wired or wireless network.Terminating machine 3 is connected with mobile terminal by wireless network
4。
To bellows 1 carry out air-leakage test when, by temporary sealing bellows 1, and into bellows 1 gas injection with
Improve the pressure in bellows 1.The gas poured can be the gas that air etc. can be discharged directly so that in detection process not
Easily cause air pollution.
And in detection by the pressure in sensor the real time measure bellows 1, and pass through the automatic decision of processor 23
Pressure in bellows 1 judges, alarm can be sent when being determined as substandard product.Therefore staff is only needed according to certain
The step of bellows 1 is arranged on airtight monitor station 2, judge that the bellows 1 of current detection is by receiving alarm
It is no qualified.So that the automation for the step of bellows 1 detects improves.Staff to the whether qualified judgement of bellows 1 also more
Add clear, simple.
Wherein, the sensor for being used to measure intraductal pressure value in pressure detecting module 22 is from the insertion of the both ends of bellows 1
Bellows 1, therefore in practical operation, can insert more pressure when installing bellows 1 along the length of bellows 1 and pass
Sensor so that more multigroup pressure data can be measured in bellows 1 along its length, average value meter is carried out by processor 23
Calculate, can more accurately obtain the change of pressure in bellows 1.
In addition to the implementation, the present invention can also have other embodiment；It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (7)
- A kind of 1. air tightness detection system, it is characterised in that：Including,Airtight monitor station (2), the detection for bellows (1) provide place；Inflator module (21), on the airtightness test table (2), the seam (11) of the bellows (1) end is sealed, and Inflated by the seam (11) into the bellows (1)；Pressure detecting module (22), the pressure in the bellows (1) is measured in real time and changes into electric signal；Processor (23), receives the electric signal and changes into data signal and obtain pressure values, by the pressure values measured in real time with The threshold value of inner setting is contrasted, and when pressure values reach default threshold value, is sent stopping to the inflator module (21) and is filled Gas signal；Contrast module (31), in the processor (23), when the processor (23) sends the stopping inflation signal, Current pressure value P1 is marked, current pressure value P2 is marked after t after a while, takes P1-P2=Δs P1, by Δ P1With preset value Δ P compares, as Δ P1Alarm signal is sent during ＞ Δ P；Siren (24), the alarm signal is received, and warning is sent to staff, alarm illustrates this product not when occurring It is qualified；Terminating machine (3), real-time reception, the pressure values of storage processor (23) conversion, and the information of collection is shown To staff.
- A kind of 2. air tightness detection system according to claim 1, it is characterised in that：The pressure detecting module (22) sets Seam (11) place is blocked in the inflator module (21).
- A kind of 3. air tightness detection system according to claim 2, it is characterised in that：The terminating machine (3) includes counting Storage module (32), record detect the number of the bellows (1), and the digital record in detection process is stored.
- A kind of 4. air tightness detection system according to claim 3, it is characterised in that：The terminating machine (3) includes display Module (33), display module (33) include display screen, the letter that the display screen records the count information module (32) Breath is shown to be obtained for staff.
- A kind of 5. air tightness detection system according to claim 1, it is characterised in that：The warning side of the siren (24) Formula is sound or visual alarm.
- A kind of 6. air tightness detection system according to claim 1, it is characterised in that：The airtight monitor station (2) and institute Terminating machine (3) is stated to connect by wired or wireless network.
- A kind of 7. air tightness detection system according to claim 1, it is characterised in that：The terminating machine (3) is by wireless Network connection has mobile terminal (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221027.3A CN107806971A (en) | 2017-11-29 | 2017-11-29 | A kind of air tightness detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221027.3A CN107806971A (en) | 2017-11-29 | 2017-11-29 | A kind of air tightness detection system |
Publications (1)
| Publication Number | Publication Date |
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| CN107806971A true CN107806971A (en) | 2018-03-16 |
Family
ID=61590751
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711221027.3A Pending CN107806971A (en) | 2017-11-29 | 2017-11-29 | A kind of air tightness detection system |
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Cited By (7)
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| CN109799043A (en) * | 2019-01-23 | 2019-05-24 | 浙江工业职业技术学院 | A kind of electrical test system and its method |
| CN111059588A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059587A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN112197917A (en) * | 2020-10-12 | 2021-01-08 | 苏州钢盾人防工程有限公司 | Air-raid door tightness detection method |
| CN112197918A (en) * | 2020-10-26 | 2021-01-08 | 北京舍得叔叔科技有限公司 | Air tightness detection system and method |
| CN116625437A (en) * | 2023-07-21 | 2023-08-22 | 沈阳仪表科学研究院有限公司 | Multi-parameter metal corrugated pipe on-line monitoring device and method |
| CN117232745A (en) * | 2023-08-03 | 2023-12-15 | 苏州凯尔森气滤系统有限公司 | Scanning leak detection device |
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| CN116625437A (en) * | 2023-07-21 | 2023-08-22 | 沈阳仪表科学研究院有限公司 | Multi-parameter metal corrugated pipe on-line monitoring device and method |
| CN116625437B (en) * | 2023-07-21 | 2023-10-03 | 沈阳仪表科学研究院有限公司 | Multi-parameter metal corrugated pipe on-line monitoring device and method |
| CN117232745A (en) * | 2023-08-03 | 2023-12-15 | 苏州凯尔森气滤系统有限公司 | Scanning leak detection device |
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