CN106197870A - A kind of immersion detection system and method - Google Patents

A kind of immersion detection system and method Download PDF

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Publication number
CN106197870A
CN106197870A CN201610863422.0A CN201610863422A CN106197870A CN 106197870 A CN106197870 A CN 106197870A CN 201610863422 A CN201610863422 A CN 201610863422A CN 106197870 A CN106197870 A CN 106197870A
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CN
China
Prior art keywords
immersion
detection system
liquid immersion
liquid
workpiece
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
Application number
CN201610863422.0A
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Chinese (zh)
Inventor
熊海贝
彭晓明
熊敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Gaominglan Photoelectric Technology Co Ltd
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Wuhan Gaominglan Photoelectric Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Gaominglan Photoelectric Technology Co Ltd filed Critical Wuhan Gaominglan Photoelectric Technology Co Ltd
Priority to CN201610863422.0A priority Critical patent/CN106197870A/en
Publication of CN106197870A publication Critical patent/CN106197870A/en
Priority to PCT/CN2017/087302 priority patent/WO2018059001A1/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention discloses a kind of immersion detection system and method, described system includes for placing workpiece to be detected and carrying out the liquid immersion device of high undersea hydrostatic pressures air-leakage test, described liquid immersion device connects the pressue device for increasing hydraulic pressure, for detecting the correcting unit of correction experiment accuracy, after correction experiment accuracy, pressurizeed in liquid immersion device by pressue device, in making liquid immersion device, hydraulic pressure reaches to preset experiment requirements, by scheme of the present invention, can conveniently carry out multiple deep water simulation air-tightness test experience, easy and simple to handle, improve conventional efficient.

Description

A kind of immersion detection system and method
Technical field
The present invention relates to air-leakage test field, particularly relate to a kind of immersion detection system and method.
Background technology
For the air-leakage test of gun collimation device, and the gun collimation device pair that detection is under the highest water pressures of high pressure The change of fluid pressure, the such as mechanically deform impact on function, the most common immersion detection is typically in the actual depth of water In the case of detect, such as carry out in deep water lake or deep-sea, but there is following defect: operational hazards degree is high, it has not been convenient to, actual Cost is high, because of in deep water, it is impossible to effectively observe and detection, and record is also inconvenient.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of immersion detection system and method, purport Solving the problem that existing air-leakage test is inconvenient.
Technical scheme is as follows:
A kind of immersion detection system, wherein, including for placing workpiece to be detected and carrying out the liquid of high undersea hydrostatic pressures air-leakage test Bath unit, described liquid immersion device connects the pressue device for increasing hydraulic pressure, for detecting the correction dress of correction experiment accuracy Putting, after correction experiment accuracy, pressurizeed in liquid immersion device by pressue device, in making liquid immersion device, hydraulic pressure reaches To presetting experiment requirements.
Described immersion detection system, wherein, described pressue device includes that piston and first drives motor, by first Drive motor to drive piston movement, pressurize in liquid immersion device.
Described immersion detection system, wherein, described liquid immersion device is also associated with reflux, and liquid immersion device put into by workpiece In, discharge the liquid in liquid immersion device, by described reflux recycling use, described reflux includes storing water Case, the first valve and catheter, the catheter height being positioned at storage water tank side is relatively low.
Described immersion detection system, wherein, described liquid immersion device is also associated with liquid supply device, and described liquid supply device includes Second drives motor and the second valve, after opening the second valve, drives motor to be injected by the water stored in water tank by second In liquid immersion device.
Described immersion detection system, wherein, described correcting unit includes exhaustor and the 3rd valve, by the 3rd valve Gate control exhaustor capacity.
Described immersion detection system, wherein, described pressue device connects the alarm device for sending alarm, described Alarm device is connected with liquid supply device, when hydraulic pressure reach workpiece tolerance range critical time, send alarm, and control liquid supply device and mend Liquid.
Described immersion detection system, wherein, is provided with the clamping dress for clamping or removal workpiece in described liquid immersion device Putting, described clamping device is connected with correcting unit.
Described immersion detection system, wherein, also includes the finder being connected with pressue device, and described finder is even Be connected to record experimental data recording equipment, and be connected with described recording equipment for showing described experimental data information Display device, described display device connects printing equipment, and described printing equipment connects detection device.
Described immersion detection system, wherein, in described liquid immersion device, is positioned at clamping device top and is provided with movable sealing Lid, can seal lid by opening, pick and place workpiece, and described clamping device includes can moving up and down and the lifting of 360 ° of rotary motions Platform.
A kind of immersion detection method, wherein, including step:
S1, correction experiment accuracy, and will experiment hydraulic pressure zero;
S2, clamping workpiece, and seal;
S3, fluid infusion carry out Taking Pictures recording print record data after evacuating gas;
Taking Pictures recording print record data after S4, pressurized treatments;
S5, blood pressure lowering return-to-zero;
S6, unlatching air intake valve, make inner air and outer air balance;
S7, unlatching liquid flowing valve, make interior exteenal reflux balance;
S8, unlatching seal lid, take out workpiece, and equipment makes zero;
S9, complete immersion detection, print result.
Beneficial effect: the invention discloses a kind of immersion detection system and method, described system includes for placing to be checked Surveying workpiece and carry out the liquid immersion device of high undersea hydrostatic pressures air-leakage test, described liquid immersion device connects the pressurization for increasing hydraulic pressure Device, for detecting the correcting unit of correction experiment accuracy, after correction experiment accuracy, by pressue device pair Pressurization in liquid immersion device, in making liquid immersion device, hydraulic pressure reaches to preset experiment requirements, by scheme of the present invention, it is possible to convenient Carry out multiple deep water simulation air-tightness test experience, easy and simple to handle, improve conventional efficient.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of immersion detection system of the present invention.
Fig. 2 is the front view of the structural representation of immersion detection system of the present invention.
Fig. 3 is the top view of the structural representation of immersion detection system of the present invention.
Fig. 4 is the side view of the structural representation of immersion detection system of the present invention.
Fig. 5 is immersion detection system voltage raising and reducing schematic diagram of the present invention.
Fig. 6 is immersion detection system compensation schematic diagram of the present invention.
Fig. 7 is the flow chart of immersion detection method of the present invention.
Detailed description of the invention
The present invention provides a kind of immersion detection system and method, for making the purpose of the present invention, technical scheme and effect more Clear, clear and definite, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to Explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, for the structured flowchart of immersion detection system of the present invention, the invention discloses a kind of immersion detection System, wherein, including for placing workpiece to be detected and carrying out the liquid immersion device 100 of high undersea hydrostatic pressures air-leakage test, described liquid Bath unit 100 connects the pressue device 200 for increasing hydraulic pressure, for detecting the correcting unit 300 of correction experiment accuracy, logical After overcorrect device 300 correction experiment accuracy, by pressue device 200 to pressurization in liquid immersion device 100, make liquid immersion device 100 Interior hydraulic pressure reaches to preset experiment requirements.The invention discloses a kind of immersion detection system, it is possible to carrying out under water one on land Air-leakage test test under constant-pressure, including liquid immersion device, can place workpiece in liquid immersion device, and liquid immersion device connects to have and adds Pressure device and correcting unit, be first corrected, and after having corrected, is pressurizeed in liquid immersion device by pressue device, Complete air-leakage test experiment.Present configuration is simple, it is possible to air-leakage test under land carries out certain hydraulic pressure.
Further, Fig. 2 is the front view of structural representation of immersion detection system of the present invention.Fig. 3 is the present invention The top view of the structural representation of described immersion detection system.Fig. 4 is the structural representation of immersion detection system of the present invention Side view.Fig. 5 is immersion detection system voltage raising and reducing schematic diagram of the present invention.Fig. 6 is immersion detection system of the present invention System correction schematic diagram.Described immersion detection system, wherein, described pressue device 200 includes that piston 201 and first drives electricity Machine 202, drives motor 202 to drive piston 201 to move by first, pressurizes in liquid immersion device 100.Leaching of the present invention Stain detecting system, described pressue device includes that piston and first drives motor, when testing, needs to pressurize, logical Cross the first driving motor and drive piston movement, thus pressurize.
Described immersion detection system, wherein, described liquid immersion device 100 is also associated with reflux 400, and liquid put into by workpiece In bath unit 100, discharge the liquid in liquid immersion device 100, by the recycling use of described reflux 400, described backflow Device 400 includes storing water tank the 401, first valve 402 and catheter 403, is positioned at the catheter storing water tank 401 side 403 is the most relatively low.Described immersion detection system, wherein, described liquid immersion device 100 is also associated with liquid supply device 500, described benefit Liquid device 500 includes the second driving motor 501 and the second valve 502, after opening the second valve 502, drives electricity by second The water stored in water tank 401 is injected in liquid immersion device 100 by machine 501.
Described immersion detection system, wherein, described correcting unit 300 includes exhaustor 301 and the 3rd valve 302, Exhaustor 301 capacity is controlled by the 3rd valve 302.
Described immersion detection system, wherein, described pressue device 200 connects the alarm device for sending alarm 600, described alarm device 600 is connected with liquid supply device 500, when hydraulic pressure reach workpiece tolerance range critical time, send alarm, and Control liquid supply device 500 fluid infusion.
Described immersion detection system, wherein, is provided with in described liquid immersion device 100 for clamping or the clamping of removal workpiece Device 700, described clamping device 700 is connected with correcting unit 300.
Described immersion detection system, wherein, also includes the finder 800 being connected with pressue device 200, described observation Device 800 connects the recording equipment 900 having record experimental data, and being used for of being connected with described recording equipment 900 shows institute Stating the display device 1000 of experimental data information, described display device 1000 connects printing equipment 1100, described printing equipment 1100 connect detection device 1200.
Described immersion detection system, wherein, in described liquid immersion device 100, is positioned at clamping device 700 top and is provided with activity Sealing lid 101, can seal lid 101 by opening, pick and place workpiece, described clamping device 700 includes can moving up and down and 360 ° The lifting platform 701 of rotary motion.
In the specific implementation, accuracy is tested in correction to the present invention, and is made zero by experiment hydraulic pressure, and movable sealing lid is opened, and passes through The lifting platform of clamping device rises, and gripping workpiece also seals, and to adding liquid in liquid immersion device, and extracts air, observes The state of workpiece, when arriving, by workpiece, the critical state damaged, send alarm, and make the inside and outside of workpiece described in liquid immersion device Pressure balanced, and when workpiece is intact, to pressurizeing in liquid immersion device, when reaching to test required condition, Taking Pictures recording also prints Record data, after blood pressure lowering return-to-zero, open air intake valve and open liquid flowing valve, make exteenal reflux balance in inner air and outer air balance, Open and take out workpiece after sealing lid, make equipment make zero, complete immersion detection print result.
The present invention is concrete, and when carrying out voltage raising and reducing and processing, piston and first by pressue device drive motor, Drive motor to drive under piston by first to press, carry out pressurized treatments, drive piston to rise and then carry out blood pressure lowering, and at timing, By exhaustor and the valve opening aerofluxus of correcting unit, and, carry out fluid infusion by liquid supply device, make reflux carry out Backflow.
Further, the invention also discloses a kind of immersion detection method, wherein, including step:
S1, correction experiment accuracy, and will experiment hydraulic pressure zero;
S2, clamping workpiece, and seal;
S3, fluid infusion carry out Taking Pictures recording print record data after evacuating gas;
Taking Pictures recording print record data after S4, pressurized treatments;
S5, blood pressure lowering return-to-zero;
S6, unlatching air intake valve, make inner air and outer air balance;
S7, unlatching liquid flowing valve, make interior exteenal reflux balance;
S8, unlatching seal lid, take out workpiece, and equipment makes zero;
S9, complete immersion detection, print result.
The concrete operations flow process of the present invention has been described in system claims, therefore does not repeats at this, the present invention Described flow chart of steps is as shown in Figure 7.
In sum, the invention discloses a kind of immersion detection system and method, wherein, described system includes for placing The bogey of detected workpiece, is provided with and communicated with the pressue device for pressurizeing bogey in described bogey, The correcting unit for the air pressure in bogey being carried out detection correction it is additionally provided with, outside described bogey in bogey The reflux of the liquid being provided with in reclaiming bogey, by scheme of the present invention, it is possible to conveniently carry out multiple Deep water simulation air-tightness test experience, easy and simple to handle, improve conventional efficient.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention Protect scope.

Claims (10)

1. an immersion detection system, it is characterised in that include for placing workpiece to be detected and carrying out high undersea hydrostatic pressures air-tightness The liquid immersion device of detection, described liquid immersion device connects the pressue device for increasing hydraulic pressure, is used for detecting correction experiment accuracy Correcting unit, by correction experiment accuracy after, by pressue device in liquid immersion device pressurize, make liquid immersion device Interior hydraulic pressure reaches to preset experiment requirements.
Immersion detection system the most according to claim 1, it is characterised in that described pressue device includes piston and first Drive motor, drive motor to drive piston movement by first, pressurize in liquid immersion device.
Immersion detection system the most according to claim 1, it is characterised in that described liquid immersion device is also associated with backflow dress Putting, workpiece is put in liquid immersion device, discharges the liquid in liquid immersion device, by described reflux recycling use, described Reflux includes storing water tank, the first valve and catheter, and the catheter height being positioned at storage water tank side is relatively low.
Immersion detection system the most according to claim 1, it is characterised in that described liquid immersion device is also associated with fluid infusion dress Putting, described liquid supply device includes the second driving motor and the second valve, after opening the second valve, and will by the second driving motor Store the water in water tank to inject in liquid immersion device.
Immersion detection system the most according to claim 1, it is characterised in that described correcting unit includes exhaustor and Three valves, by the 3rd Valve controlling exhaustor capacity.
6. according to the immersion detection system described in claim, it is characterised in that described pressue device connects to be had for sending police Report alarm device, described alarm device is connected with liquid supply device, when hydraulic pressure reach workpiece tolerance range critical time, send police Report, and control liquid supply device fluid infusion.
7. according to the immersion detection system described in claim, it is characterised in that be provided with in described liquid immersion device for clamping or The clamping device of removal workpiece, described clamping device is connected with correcting unit.
8. according to the immersion detection system described in claim, it is characterised in that also include the observation dress being connected with pressue device Put, described finder connect have record experimental data recording equipment, and be connected with described recording equipment for showing The display device of described experimental data information, described display device connects printing equipment, and described printing equipment connects detection device.
9., according to the immersion detection system described in claim, it is characterised in that in described liquid immersion device, it is positioned at clamping device top End is provided with movable sealing lid, can seal lid by opening, pick and place workpiece, and described clamping device includes can moving up and down and 360 ° The lifting platform of rotary motion.
10. an immersion detection method, it is characterised in that include step:
S1, correction experiment accuracy, and will experiment hydraulic pressure zero;
S2, clamping workpiece, and seal;
S3, fluid infusion carry out Taking Pictures recording print record data after evacuating gas;
Taking Pictures recording print record data after S4, pressurized treatments;
S5, blood pressure lowering return-to-zero;
S6, unlatching air intake valve, make inner air and outer air balance;
S7, unlatching liquid flowing valve, make interior exteenal reflux balance;
S8, unlatching seal lid, take out workpiece, and equipment makes zero;
S9, complete immersion detection, print result.
CN201610863422.0A 2016-09-29 2016-09-29 A kind of immersion detection system and method Pending CN106197870A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610863422.0A CN106197870A (en) 2016-09-29 2016-09-29 A kind of immersion detection system and method
PCT/CN2017/087302 WO2018059001A1 (en) 2016-09-29 2017-06-06 Impregnating detection system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610863422.0A CN106197870A (en) 2016-09-29 2016-09-29 A kind of immersion detection system and method

Publications (1)

Publication Number Publication Date
CN106197870A true CN106197870A (en) 2016-12-07

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WO (1) WO2018059001A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595993A (en) * 2016-12-28 2017-04-26 石家庄大成冀台机械有限公司 High-pressure water pressure detection system
CN107179247A (en) * 2017-06-26 2017-09-19 武汉高明兰光电科技有限公司 A kind of Scientific Research Platform of deep water l-G simulation test
WO2018059001A1 (en) * 2016-09-29 2018-04-05 武汉高明兰光电科技有限公司 Impregnating detection system and method
CN109163860A (en) * 2018-07-30 2019-01-08 新乡市新科防护科技有限公司 A kind of diving takes device for detecting sealability

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113483954B (en) * 2021-07-08 2022-12-23 苏州苏勃检测技术服务有限公司 Water immersion type automobile exhaust pipe air tightness detection device and detection method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187827A (en) * 1982-04-28 1983-11-02 Hitachi Ltd Method of increasing pressure resistance of ice plug
JPS61195326A (en) * 1985-02-26 1986-08-29 Matsushita Electric Ind Co Ltd Water leakage detection device
US20030037597A1 (en) * 2001-08-22 2003-02-27 Tarara James A. Method and apparatus for leak testing a liquid system
CN2879169Y (en) * 2006-02-20 2007-03-14 上海神龙清洗机有限公司 New pressure testing device
CN101639396A (en) * 2009-09-08 2010-02-03 合肥通用机械研究院 Mechanical seal test system for nuclear main pump
CN101788371A (en) * 2010-01-29 2010-07-28 重庆长安汽车股份有限公司 Automotive air-conditioning condenser sealing test device
CN102564711A (en) * 2011-12-20 2012-07-11 北京动力机械研究所 Device and method for detecting water tightness performance of underwater sensor
CN103808466A (en) * 2014-01-21 2014-05-21 丹东克隆集团有限责任公司 Full working condition mechanical seal detection test device
CN105403461A (en) * 2015-12-07 2016-03-16 江苏亨通海洋光网系统有限公司 Submarine optical cable water penetration test testing system
CN206114210U (en) * 2016-09-29 2017-04-19 武汉高明兰光电科技有限公司 Flooding detecting system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01227035A (en) * 1988-03-08 1989-09-11 Yamaha Corp Leak tester
US6223586B1 (en) * 1998-12-23 2001-05-01 Visteon Global Technologies, Inc. Micro-electromechanical device inspection
CN101487758A (en) * 2008-01-18 2009-07-22 纬创资通股份有限公司 System and method for testing water resistance of article under test
CN102466551A (en) * 2010-11-19 2012-05-23 亚旭电脑股份有限公司 Waterproof testing device and method thereof
CN104048800A (en) * 2014-06-12 2014-09-17 湖北华强科技有限责任公司 Protective mask air tightness detecting device
CN106197870A (en) * 2016-09-29 2016-12-07 武汉高明兰光电科技有限公司 A kind of immersion detection system and method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187827A (en) * 1982-04-28 1983-11-02 Hitachi Ltd Method of increasing pressure resistance of ice plug
JPS61195326A (en) * 1985-02-26 1986-08-29 Matsushita Electric Ind Co Ltd Water leakage detection device
US20030037597A1 (en) * 2001-08-22 2003-02-27 Tarara James A. Method and apparatus for leak testing a liquid system
CN2879169Y (en) * 2006-02-20 2007-03-14 上海神龙清洗机有限公司 New pressure testing device
CN101639396A (en) * 2009-09-08 2010-02-03 合肥通用机械研究院 Mechanical seal test system for nuclear main pump
CN101788371A (en) * 2010-01-29 2010-07-28 重庆长安汽车股份有限公司 Automotive air-conditioning condenser sealing test device
CN102564711A (en) * 2011-12-20 2012-07-11 北京动力机械研究所 Device and method for detecting water tightness performance of underwater sensor
CN103808466A (en) * 2014-01-21 2014-05-21 丹东克隆集团有限责任公司 Full working condition mechanical seal detection test device
CN105403461A (en) * 2015-12-07 2016-03-16 江苏亨通海洋光网系统有限公司 Submarine optical cable water penetration test testing system
CN206114210U (en) * 2016-09-29 2017-04-19 武汉高明兰光电科技有限公司 Flooding detecting system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
蒋开喜: "《加压湿法冶金》", 31 January 2016, 冶金工业出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018059001A1 (en) * 2016-09-29 2018-04-05 武汉高明兰光电科技有限公司 Impregnating detection system and method
CN106595993A (en) * 2016-12-28 2017-04-26 石家庄大成冀台机械有限公司 High-pressure water pressure detection system
CN107179247A (en) * 2017-06-26 2017-09-19 武汉高明兰光电科技有限公司 A kind of Scientific Research Platform of deep water l-G simulation test
CN109163860A (en) * 2018-07-30 2019-01-08 新乡市新科防护科技有限公司 A kind of diving takes device for detecting sealability

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Application publication date: 20161207