CN107991034A - The detecting element and correction detection device and method of a kind of ventilating system seal - Google Patents
The detecting element and correction detection device and method of a kind of ventilating system seal Download PDFInfo
- Publication number
- CN107991034A CN107991034A CN201711422842.6A CN201711422842A CN107991034A CN 107991034 A CN107991034 A CN 107991034A CN 201711422842 A CN201711422842 A CN 201711422842A CN 107991034 A CN107991034 A CN 107991034A
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- China
- Prior art keywords
- ventilating system
- pipe
- detecting element
- seal
- air bag
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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
- G01M3/007—Leak detector calibration, standard leaks
-
- 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
Abstract
The detecting element of ventilating system seal, circular air bag prepared by elastic material, air bag ring center is sealing plate, and sealing plate is equipped with pipe joint；The contact force of certain dilatancy, increase and pallet and tested circular inner-walls of duct is produced after airbag aeration so as to form the sealing performance of requirement；Circular air bag is equipped with inflation and bleeder pipe.Utilize the detecting element and identical correcting element, micro-flowmeter, pressure sensor, wind turbine, inflator pump, controller, liquid crystal display, the first control valve, the second control valve；First control valve, the second control valve are series on the gas tube for two air bags that inflator pump is connected to correction and detecting element respectively, the both ends that two air bags are placed in the segment pipe in ventilating system to be measured form closed conduit space, sealing plate spatially picks out detection pipe, pressure-measuring pipe from closed conduit equipped with pipe joint, wind turbine output connects pressure sensor, pressure sensor output connection controller into detection pipe, pressure-measuring pipe output.
Description
Technical field
The present invention relates to ventilation unit tightness detector, especially protection works (the national defence underground to installing
Engineering and civil air defense constructions and installations) air inlet system and exhaust system seal carry out Site Detection device.
Background technology
The seal of protection works is the basis of engineering protection, and especially underground civil defense engineering requires the close of the higher of pipeline
In closing property, wherein engineering into, exhaust system (pipeline and sealed valve) be connection engineering internal and external channel, such as Fig. 1 and Fig. 2 institutes
Show.Into, exhaust system in extraneous air cleaner for when ventilation passage is provided；When engineering outside air is by chemical and biological weapons
When attacking contamination, protection is provided for underground engineering, it is desirable to which all be installed on must all be closed into the sealed valve on exhaust duct
Close, to prevent extraneous contamination air from entering technical interior.Therefore, the seal of engineering inlet air, exhaust system is to the safety of engineering
It is most important.Due to requirement of shelter, a part of air hose bag into, exhaust system in engineering in the safeguard structure of engineering,
Airtight valve is installed in the duct, can not carry out Site Detection to its seal, thus can not also ensure engineering into, exhaust system
Construction quality, and then cannot ensure the safety of engineering.The prior art includes the patent formula and public affairs of the present inventor's previous application
The paper opened is difficult to solve the detection Correction Problemss in engineering.
The content of the invention
The present invention seeks to propose a kind of detecting element of ventilating system seal and the detection device of calibration function, lead to
The gas leakage value of detection ventilating system is crossed, thus can measure the seal of ventilating system.So that it is guaranteed that engineering into, air draft
The construction quality of system, and ensure the safety of engineering.Examined especially by being formed between correction detection air bag and detected valve
Test tube chamber, according to the show value of micro-flowmeter and can detect that detection valve at ventilating system seal.
The technical scheme is that the detecting element of ventilating system seal, circular air bag prepared by elastic material,
Air bag ring center is sealing plate, and sealing plate is equipped with pipe joint；Produce certain dilatancy after airbag aeration, increase and
The contact force of pallet and tested circular inner-walls of duct is so as to form the sealing performance of requirement；The diameter of circular air bag is in 100mm
More than, circular air bag is equipped with inflation and bleeder pipe.
Air bag material is circular made of rubber, is placed in pallet annular groove, and pallet annular groove center is circle sealing plate.
The excircle position of circular air bag is equipped with one layer of elastomer shape-changing material, makes better tightness.
The detection of the ventilating system seal with calibration function that the detecting element of the ventilating system seal is formed
Device, it is characterized in that including the detecting element, correcting element, micro-flowmeter, pressure sensor, (frequency conversion) wind turbine, inflator pump,
(programmable) controller, liquid crystal display, the first control valve, the second control valve；The correcting element is identical with the detecting element, the
One control valve, the second control valve are series on the gas tube for two air bags that inflator pump is connected to correction and detecting element respectively,
The both ends that two air bags are placed in the segment pipe in ventilating system to be measured form closed conduit space, and sealing plate is equipped with pipeline
Interface spatially picks out detection pipe 10, pressure-measuring pipe 11 from closed conduit, and wind turbine output enters detection pipe 10, micro-flowmeter, pressure measurement
The output of pipe 11 connects pressure sensor, pressure sensor and micro-flowmeter output connection controller.
Detection method is corrected using the above-mentioned ventilating system tightness detector with calibration function, step is such as
Under, the seal in the closed conduit space of detection two balloon occlusions of correction：Two detection air bags are placed in ventilating system to be measured
The both ends of one section of ventilation shaft form closed conduit space, detection pipe 10, pressure-measuring pipe 11 are drawn from closed conduit space, to two
Two air bags are made to be in close contact with tested circular pipe after airbag aeration, the closed conduit space formed between two air bags is known as
Tube chamber is corrected, the hand-electric sealed valve being tested in correction tube chamber, that is, ventilation shaft is opened, ventilating system is in unobstructed state；
Start (frequency conversion) wind turbine, fan delivery output inflates correction tube chamber by detection pipe, when correction tube chamber inner air pressure reaches
When setting pressure, if the decompression of the flow measurements of micro-flowmeter or 11 pressure measurement value of pressure-measuring pipe for a period of time is less than setting,
Illustrate that the seal of the i.e. detecting element of balloon occlusion element is qualified；Follow-up ventilating system seal detection is carried out, otherwise, it is necessary to add
Find reason and excluded, untill detection device seal is up to standard；When detecting ventilating system seal, by quilt in pipeline
The hand-electric sealed valve of detection is closed, and keeps the first airbag aeration, the gas of second air bag at rear portion is discharged, as first
The tube chamber of a bigger is formed between air bag and detected hand electric closed valve door, starts frequency conversion fan, which is inflated, surely
The measured value of the flow indication of micro-flowmeter is the gas leakage value of ventilating system after fixed, thus measures the closed of ventilating system
Property.
Beneficial effect：The detecting element of ventilating system seal proposed by the present invention, produces after airbag aeration certain swollen
The contact force of bulging deformation, increase and pallet and tested circular inner-walls of duct first measures pipeline so as to form the sealing performance of requirement
Leakproofness, then detect the local system including valve；Have the function of to correct and detect ventilating system seal, it is micro- after stablizing
The measured value of the flow indication of flowmeter is the gas leakage value of ventilating system, thus can measure the seal of ventilating system
And easily solve in time.The precision of detection and correction is high and reliable, in place of the leakage that can find valve and pipeline in time,
Ensure that underground civil defense engineering requires the quality of the seal of the higher of pipeline, including in engineering into, exhaust system, ensure engineering
Safety；Moreover the present invention is used for a part of air hose bag into, exhaust system in engineering in the safeguard structure of engineering, close
Valve closing install in the duct, Site Detection can also be carried out to its seal with the method for the present invention and device, it is ensured that engineering into,
The construction quality of exhaust system.
Brief description of the drawings
Fig. 1 is detecting element structure diagram of the present invention.
Fig. 2 is the ventilating system tightness detector structural representation with calibration function that detecting element of the present invention is formed
Figure.
Embodiment
Illustrate the present invention below in conjunction with attached drawing and by embodiment, shown in Fig. 2, (main element is the first gas to detecting element
Capsule) 1, correcting element (main element is the second air bag) 2, micro-flowmeter 6, pressure sensor 7, (frequency conversion) wind turbine 4, inflator pump 3,
Programmable controller 5, liquid crystal display 8, the first control valve 13, the second control valve 14, airbag inflation pipe 9, detection pipe 10, pressure-measuring pipe
11st, circular duct 12, sealed valve 15, stent 16.Circular air bag 21, air bag ring center are sealing plate 22, pallet annular groove
23rd, air hose 24 to be detected.
As shown in the figure, the detecting element of ventilating system seal of the present invention, correcting element is identical with detecting element, is elasticity
Circular air bag prepared by material, ring center is sealing plate, and sealing plate is equipped with pipe joint；Especially air bag material is rubber
Manufactured circular and vulcanization is integral, can also be placed in air bag in pallet annular groove as shown in Figure 2, and pallet center is in ring
Sealing plate is entreated, certain dilatancy is produced after airbag aeration, is adapted to the ventilation shaft (ventilation duct of a certain range diameter
It is pipe that road is generally even, is not also lined up using rectangular duct), expansion increase is with being tested the contact force of circle inner-walls of duct so as to shape
Into the sealing performance for reaching requirement；The diameter of air pocket rings is in more than 100mm；Generally in 300mm or so, according to actual pipe detection
Application can be prepared into different size, the diameter of air pocket rings should be more than the diameter of actually detected pipeline；It is prepared into a trip
Whether the structure of swimming life-buoy is preferable, more preferable using the good silica gel of certain thickness elasticity etc..The excircle position of air pocket rings is preferably set
There is one layer of elastomer shape-changing material with making better tightness during tube contacts.If it can also be prepared at the excircle position of air pocket rings
The good airproof performance of dry circle parallel rubber o-ring, when in use multi-turn；Plurality of specifications can also be adapted to the pipe of different-diameter scope
Road.
Ventilating system tightness detector with calibration function, by detecting element, correcting element, micro-flowmeter, pressure
Force snesor, frequency conversion fan, inflator pump, programmable controller, liquid crystal display composition, the first control valve, the second control valve group into.School
During the seal of positive detection air bag, by detecting element and correcting element (being circular air bag prepared by identical elastic material)
The front and rear end for being placed in ventilation shaft, (the first control after inflation is in close contact after two element airbag aerations with tested circular pipe
Valve processed, the second control valve are intended to end or maintain inflation), the space formed between two elements is known as correcting tube chamber, opens pipe
The hand-electric sealed valve being tested in road, makes ventilating system be in unobstructed state.Start frequency conversion fan, correction tube chamber inflated,
When correction tube chamber inner air pressure reaches setting pressure, if the flow measurements of micro-flowmeter are less than setting, illustrate inspection
It is qualified to survey element seal, follow-up ventilating system seal detection can be carried out, otherwise, it is necessary to add and find reason and arranged
Remove, untill detection device seal is up to standard, correcting element detects ventilating system seal between detecting element and valve
When, the hand-electric sealed valve being detected in pipeline is closed, the airbag aeration of detecting element is kept, by the air bag of correcting element
Gas discharge, between detecting element and detected hand electric closed valve door formed a bigger tube chamber, start frequency conversion fan,
The tube chamber is inflated, the measured value of the flow indication of micro-flowmeter is the gas leakage value of ventilating system after stablizing, and thus can
Measure the seal of ventilating system (including valve)；Whether gas leakage is readily able to find out valve, and existing method is not easy to detect
This, especially requires the accuracy of detection of air leakage to require high device and component..
Ventilating system tightness detector correction detection method with calibration function, step is as follows, correction detection gas
During the seal of capsule, the end of ventilation shaft will be placed in before and after detecting element and correcting element, after the airbag aeration of two elements
It is in close contact with tested circular pipe, the space formed between two elements is known as correcting tube chamber, the hand being tested in opening conduits
Electric closed valve door, makes ventilating system be in unobstructed state.Start frequency conversion fan, to correction tube chamber inflation, when in correction tube chamber
When air pressure reaches setting pressure, if the flow measurements of micro-flowmeter are less than setting, illustrate detecting element seal
Qualification, can carry out follow-up ventilating system seal detection, otherwise, it is necessary to add and find reason and excluded, until detection dress
Put seal it is up to standard untill.When detecting ventilating system seal, the hand-electric sealed valve being detected in pipeline is closed, is kept
The airbag aeration of detecting element, the gas of the air bag of correcting element is discharged, detecting element and detected hand electric closed valve door
Between formed a bigger tube chamber, start frequency conversion fan, to the tube chamber inflate, stablize after micro-flowmeter flow indication survey
Value is the gas leakage value of ventilating system, thus can measure the seal of ventilating system.
In device correction, two the oneth the second airbag aerations of element are detected using correction, are formed between two air bags
One correction tube chamber, starts the pressed gas of frequency conversion fan output to correction tube chamber inflation, when correction tube chamber pressure reaches setting
During pressure, the seal of detection device is determined according to the indicated value of micro-flowmeter, the close of system can be aerated after qualified
Closing property detects；When being aerated the detection of system seal, air bag inflation is only detected, correction air bag is non-aerating,
So detect and detection tube chamber is formed between air bag and detected valve, start the pressed gas of frequency conversion fan output to detecting tube chamber
Inflation, according to the show value of micro-flowmeter and can detect that the seal of ventilating system.Carry detecting element and correcting element
Two pallet annular grooves of two circular air bags 21 can be connected to together by a stent.
Present invention is not limited to the embodiments described above, using identical with the above-mentioned embodiment of the present invention or approximate structure,
Obtained from other structures design, within protection scope of the present invention.
Claims (5)
1. the detecting element of ventilating system seal, it is characterized in that circular air bag prepared by elastic material, air bag ring center
For sealing plate, sealing plate is equipped with pipe joint；Certain dilatancy, increase and pallet and measured circle are produced after airbag aeration
The contact force of shape inner-walls of duct is so as to form the sealing performance of requirement；The diameter of circular air bag is in more than 100mm, circular gas
Capsule is equipped with inflation and bleeder pipe.
2. the detecting element of the ventilating system seal according to claim requirement 1, it is characterized in that air bag material is rubber
Manufactured annular shape, is placed in pallet annular groove, and pallet annular groove center is circle sealing plate.
3. the detecting element of the ventilating system seal according to claim requirement 1 or 2, it is characterized in that circular air bag
Excircle position is equipped with one layer of elastomer shape-changing material.
4. the ventage with calibration function that the detecting element of the ventilating system seal according to claim 1-3 is formed
Unite tightness detector, it is characterized in that including the detecting element, correcting element, micro-flowmeter, pressure sensor, wind turbine,
Inflator pump, controller, liquid crystal display, the first control valve, the second control valve；The correcting element is identical with the detecting element, the
One control valve, the second control valve are series on the gas tube for two air bags that inflator pump is connected to correction and detecting element respectively,
The both ends that two air bags are placed in the segment pipe in ventilating system to be measured form closed conduit space, and sealing plate is equipped with pipeline
Interface spatially picks out detection pipe, pressure-measuring pipe from closed conduit, and wind turbine output is exported into detection pipe, micro-flowmeter, pressure-measuring pipe
Connect pressure sensor, pressure sensor and micro-flowmeter output connection controller.
5. the correction detection method of the ventilating system tightness detector according to claim 4 with calibration function,
It is characterized in that step is as follows, detection corrects the seal in the closed conduit space of two balloon occlusions：Two detection air bags
The both ends for one section of ventilation shaft being placed in ventilating system to be measured form closed conduit space, draw and examine from closed conduit space
Test tube, pressure-measuring pipe, to making two air bags be in close contact with tested circular pipe after two airbag aerations, form between two air bags
Closed conduit space is known as correcting tube chamber, opens the hand-electric sealed valve being tested in correction tube chamber, that is, ventilation shaft, makes ventilation
System is in unobstructed state；Start (frequency conversion) wind turbine, fan delivery output inflates correction tube chamber by detection pipe, when correction is managed
When chamber air pressure reaches setting pressure, if the flow measurements of micro-flowmeter or pressure-measuring pipe pressure measurement value subtracting for a period of time
Pressure is less than setting, illustrates that the seal of the i.e. detecting element of balloon occlusion element is qualified；Follow-up ventilating system seal is carried out again
Detection, otherwise, it is necessary to add and find reason and excluded, untill detection device seal is up to standard；It is close to detect ventilating system
During closing property, the hand-electric sealed valve being detected in pipeline is closed, the first airbag aeration is kept, by second air bag at rear portion
Gas is discharged, and as the tube chamber that a bigger is formed between the first air bag and detected hand electric closed valve door, starts frequency conversion wind
Machine, inflates the tube chamber, and the measured value of the flow indication of micro-flowmeter is the gas leakage value of ventilating system after stablizing, and is thus measured
Go out the seal of ventilating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422842.6A CN107991034A (en) | 2017-12-25 | 2017-12-25 | The detecting element and correction detection device and method of a kind of ventilating system seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422842.6A CN107991034A (en) | 2017-12-25 | 2017-12-25 | The detecting element and correction detection device and method of a kind of ventilating system seal |
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| Publication Number | Publication Date |
|---|---|
| CN107991034A true CN107991034A (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711422842.6A Pending CN107991034A (en) | 2017-12-25 | 2017-12-25 | The detecting element and correction detection device and method of a kind of ventilating system seal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871698A (en) * | 2018-08-17 | 2018-11-23 | 爱德森（厦门）电子有限公司 | A method of improving ping detecting distance ability |
| CN110528664A (en) * | 2019-09-16 | 2019-12-03 | 江苏永联精筑建设集团有限公司 | A kind of bull sewer air bag water blocking device |
| CN113074882A (en) * | 2021-03-29 | 2021-07-06 | 茂盟（上海）工程技术股份有限公司 | Buried pipeline leakage point intelligent detection method |
| CN113405027A (en) * | 2021-06-25 | 2021-09-17 | 中国船舶重工集团公司第七一九研究所 | Pipeline damage detection device and pipeline damage detection method |
| CN113970414A (en) * | 2021-10-27 | 2022-01-25 | 上海派普诺管道检测科技发展有限公司 | Underground pipeline leakage point detection device and detection method thereof |
| CN114018719A (en) * | 2021-11-04 | 2022-02-08 | 中国矿业大学 | Supercritical carbon dioxide fracturing temperature and pressure accurate monitoring test device and method |
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
-
2017
- 2017-12-25 CN CN201711422842.6A patent/CN107991034A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871698A (en) * | 2018-08-17 | 2018-11-23 | 爱德森（厦门）电子有限公司 | A method of improving ping detecting distance ability |
| CN110528664A (en) * | 2019-09-16 | 2019-12-03 | 江苏永联精筑建设集团有限公司 | A kind of bull sewer air bag water blocking device |
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
| CN113074882A (en) * | 2021-03-29 | 2021-07-06 | 茂盟（上海）工程技术股份有限公司 | Buried pipeline leakage point intelligent detection method |
| CN113405027A (en) * | 2021-06-25 | 2021-09-17 | 中国船舶重工集团公司第七一九研究所 | Pipeline damage detection device and pipeline damage detection method |
| CN113970414A (en) * | 2021-10-27 | 2022-01-25 | 上海派普诺管道检测科技发展有限公司 | Underground pipeline leakage point detection device and detection method thereof |
| CN114018719A (en) * | 2021-11-04 | 2022-02-08 | 中国矿业大学 | Supercritical carbon dioxide fracturing temperature and pressure accurate monitoring test device and method |
| CN114018719B (en) * | 2021-11-04 | 2024-01-26 | 中国矿业大学 | Supercritical carbon dioxide fracturing temperature and pressure accurate monitoring test device and method |
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Effective date of registration: 20181109 Address after: No. 44, Xuanxin bridge, Xuanwu District, Nanjing, Jiangsu Province Applicant after: Jiangsu military installation technology Co., Ltd. Address before: 211224 No. 39 Xuanfeng Mountain Village, Xiantan Village, Jingqiao Town, Lishui District, Nanjing City, Jiangsu Province Applicant before: Yang Jie |