CN108302332B - A kind of micro- leak detection device of combustion gas - Google Patents
A kind of micro- leak detection device of combustion gas Download PDFInfo
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- CN108302332B CN108302332B CN201810095755.2A CN201810095755A CN108302332B CN 108302332 B CN108302332 B CN 108302332B CN 201810095755 A CN201810095755 A CN 201810095755A CN 108302332 B CN108302332 B CN 108302332B
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- measurement module
- combustion gas
- leak detection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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Abstract
The invention discloses a kind of micro- leak detection devices of combustion gas, including detector shell, for the measurement module and jacket for data lines of real-time measurement combustion gas gauge pressure values to be measured, the detector housing forward end external process has screw thread, it is connect with the outlet side of gas meter, flow meter to be measured, ladder-like circular aperture is machined with inside detector housing forward end, circular aperture is connected with the gauge pressure sensing chip front end on measurement module；It is machined with circular cavity among detector shell, is embedded with measurement module in cavity；It presses connection in the rear end of detector shell and the connecting plate of jacket for data lines.Be connected firmly between various pieces in the present invention, structure is simple, it is easy for installation, faint gas leak phenomenon also can accurately detected, and using when be user do not have to gas in the case where measure, core detection part measurement module and measured medium contact material are without electric signal, corrosion resistance is superior, has filled up both at home and abroad still not specifically for the technological gap of the micro- leak detection of natural gas.
Description
Technical field
The present invention relates to the micro- leak detection fields of combustion gas, and in particular to a kind of micro- leak detection device of combustion gas.
Background technique
With the improvement of people's living standards, in the family that China's combustion gas has been commonly applied to town dweller.In recent years
Due to day gradually mostly because of caused by gas leakage fire, explosion and intoxication accident generation, seriously threaten people's life
Property safety.Lesson written in blood again and again, so that how to prevent gas leakage from causing unnecessary loss to have become to people
An important topic in life.Currently, both at home and abroad still not gas leakage subtle specifically for natural gas the case where the combustion that is detected
Gas detecting instrument can only detect the larger situation of air leakage, bring biggish security risk using combustion gas to family.
Summary of the invention
Also can accurately detected the technical problem to be solved by the present invention is to the combustion gas to micro- leakage, and it is an object of the present invention to provide
A kind of micro- leak detection device of combustion gas, be connected firmly between various pieces, structure is simple, it is easy for installation, for faint gas leak phenomenon
Also can accurately detected, and using when be user do not have to gas in the case where, close built-in valve of gas meter to be measured, if
After the dry time, measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas to the combustion gas between user's gas utensil
Pressure, core detection part measurement module and measured medium contact material are without electric signal, and corrosion resistance is superior, and stability is good,
Working range is wide, and measurement accuracy is high, has filled up both at home and abroad still not specifically for the technological gap of the micro- leak detection of natural gas.
The present invention is achieved through the following technical solutions:
A kind of micro- leak detection device of combustion gas, including detector shell, for the measurement of real-time measurement combustion gas gauge pressure values to be measured
Module and jacket for data lines, the detector housing forward end external process have screw thread, connect with the outlet side of gas meter, flow meter to be measured, inspection
It surveys inside device housing forward end and is machined with ladder-like circular aperture, circular aperture and the gauge pressure sensing chip front end phase on measurement module
Even；It is machined with circular cavity among detector shell, is embedded with measurement module in cavity；Detector shell rear end with
The connecting plate of jacket for data lines presses connection, and the connecting line of measurement module draws inside jacket for data lines and enters combustion gas to be measured
It is connect in the degree watchcase body of table with signal-processing board.
The present invention realizes micro- leak detection of natural gas, and the detector is generally installed on gas meter, flow meter outlet side, can detect
The micro- leakage situation of the combustion gas of this section of gas pipeline between gas meter, flow meter outlet side and user's gas utensil.Likewise, if being installed
In the air inlet end of gas meter, flow meter, the micro- leakage situation of combustion gas of air inlet end and gas company's gas pipeline also can detect.The base of micro- leak detection
This method is that micro- leak detection device is mounted on to the air inlet end of gas meter, flow meter to be measured, in the case where user does not have to gas, is closed to be measured
Built-in valve of gas meter, after some time, measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas is to using
Gaseous-pressure between the Gas appliance of family keeps situation to judge whether the segment pipe has gas leakage situation, and will count according to pressure
Gas company is uploaded to when factually, to make timely processing in time.
This programme uses optimization algorithm adjustment to measurement module, realizes that each product is having the same defeated at the same pressure
Out, replaceability is good.The program can realize stably measured in -50 DEG C~60 DEG C complete warm ranges, and operating temperature range is wide, and the device is long
Phase detection drift < 0.1%, long-time stability are good.
Be connected firmly between the micro- leak detection device various pieces of the combustion gas, structure is simple, it is easy for installation, for faint gas leakage
Phenomenon also can accurately detected, and using when be user do not have to gas in the case where, close valve built in gas meter, flow meter to be measured
Door, after some time, the measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas is between user's gas utensil
Gaseous-pressure, without electric signal, corrosion resistance is superior, fills up for core detection part measurement module and measured medium contact material
Both at home and abroad still not specifically for the technological gap of the micro- leak detection of natural gas.The detection device can be accurately detected to test tube
The micro- leakage phenomenon of combustion gas in road, detection accuracy is high, and micro- leakage phenomenon in gas pipeline can also detected for 1 percent.
Preferably, measurement module is inlaid in the circular cavity among detector shell Nei and with epoxy glue by measurement module
Complete encapsulating.Epoxy glue be it is strong with adhesion strength, shrinkage is low, stable chemical performance, superior electrical property, have high dielectric property
The superior isolation material of energy, resistance to surface leakage, resistance to electric arc, measurement module can be firmly fixed in detector shell without
It moves.
Preferably, measurement module material therefor is monocrystalline silicon and ceramics, and monocrystalline silicon and ceramics can directly contact tested
Medium.Measurement module is the core detection part of this programme, and core detection part material is silicon materials, can directly be contacted tested
Medium avoids transmitting medium from consuming the loss of pressure, substantially increases measurement accuracy.Core detection part when the program detects
Measurement module and measured medium contact material are without electric signal, while material is monocrystalline silicon and ceramics, corrosion resistance with higher
Energy.
Preferably, measurement module includes being responsible for pressure value and the gauge pressure of output pressure Value Data sensing in measurement gas pipeline
Chip, I of the gauge pressure values that real-time Transmission measures to gas meter, flow meter2C number bus, filter and protection circuit, protection circuit and
Filter is connect with gauge pressure sensing chip, and measurement module is able to detect equal to or less than the micro- leakage phenomenon of 1% combustion gas, material used
Material is monocrystalline silicon and ceramics, can directly contact tested medium, has stronger corrosion resistance and higher precision.Using high-precision
Gauge pressure sensing chip is responsible for measuring pressure value and output pressure Value Data in gas pipeline, and filtering and protection circuit can promote the inspection
The performance for surveying device, improves the stability and reliability of measurement data.
Preferably, measurement module and measured medium contact material are without electric signal, and corrosion resistance is superior, working range
Width, measurement accuracy is high, and gauge pressure sensing chip is anti high overload pressure chip, can satisfy 4-15 times of overload pressure impact.Using
Anti high overload pressure chip, can meet 4-15 times of overload pressure impact, and overload capacity is strong.
Preferably, jacket for data lines corrugated stainless steel tubing and connecting plate welding are completed, the front and back two of corrugated stainless steel tubing
End is welded with connecting plate.Corrugated stainless steel tubing has the multinomial spy such as flexible, light weight, corrosion-resistant, antifatigue, high-low temperature resistant
Point can play the role of preferably protecting data line.
Preferably, the front end connecting plate of jacket for data lines presses with the rear end of detector shell connect；Jacket for data lines
Rear end connecting plate is connect with the degree watchcase body for surveying gas meter, flow meter.
Preferably, the detector shell is process for stainless steel material.
Compared with prior art, the present invention having the following advantages and benefits:
1, be connected firmly between various pieces in the present invention, structure is simple, it is easy for installation, for faint gas leakage
Can accurately detected, and using when be user do not have to gas in the case where, close built-in valve of gas meter to be measured, it is several
After time, measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas to the gas pressure between user's gas utensil
Power, core detection part measurement module and measured medium contact material are without electric signal, and corrosion resistance is superior, and stability is good,
Working range is wide, and measurement accuracy is high, has filled up both at home and abroad still not specifically for the technological gap of the micro- leak detection of natural gas.
2, measurement module is the core detection part of this programme in the present invention, and core detection part material is silicon materials, can
Tested medium is directly contacted, avoids transmitting medium from consuming the loss of pressure, substantially increases measurement accuracy and corrosion resistance
Energy.
3, the present invention can meet 4-15 times of overload pressure impact using anti high overload pressure chip is used, and overload capacity is strong.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is schematic view of the mounting position of the invention.
Label and corresponding parts title in attached drawing:
1- detector shell；2- measurement module；3- jacket for data lines；The micro- leak detection device of 4- combustion gas；5- gas meter, flow meter to be measured.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1:
As shown in Figs. 1-2, Fig. 2 is schematic view of the mounting position of the invention, and 4 be the micro- leak detection device of combustion gas, and the present invention includes
A kind of micro- leak detection device of combustion gas, including detector shell 1, for 2 and of measurement module of real-time measurement 5 pressure value of gas meter, flow meter to be measured
Jacket for data lines 3, the 1 outer front end external process of detector shell have screw thread, connect with the outlet side of gas meter, flow meter 5 to be measured,
Ladder-like circular aperture is machined with inside 1 front end of detector shell, before the gauge pressure sensing chip on circular aperture and measurement module 2
End is connected；It is machined with circular cavity among detector shell 1, is embedded with measurement module 2 in cavity；In detector shell 1
Rear end press and connect with the connecting plate of jacket for data lines 3, the connecting line of measurement module 2 is drawn simultaneously inside jacket for data lines 3
It is connect in into the degree watchcase body of gas meter, flow meter 5 to be measured with signal-processing board.
The present invention realizes micro- leak detection of natural gas, and the detector is generally installed on gas meter, flow meter outlet side, can detect
The micro- leakage situation of the combustion gas of this section of gas pipeline between gas meter, flow meter outlet side and user's gas utensil.Likewise, if being installed
In the air inlet end of gas meter, flow meter, the micro- leakage situation of combustion gas of air inlet end and gas company's gas pipeline also can detect.The base of micro- leak detection
This method is that micro- leak detection device is mounted on to the air inlet end of gas meter, flow meter to be measured, in the case where user does not have to gas, is closed to be measured
Built-in valve of gas meter, after some time, measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas is to using
Gaseous-pressure between the Gas appliance of family keeps situation to judge whether the segment pipe has micro- leakage situation according to pressure, and by data knot
Fruit is reported to gas meter, flow meter, to make respective handling in time.
This programme uses optimization algorithm adjustment to measurement module, realizes that each product is having the same defeated at the same pressure
Out, replaceability is good.The program can realize stably measured in -50 DEG C~60 DEG C complete warm ranges, and operating temperature range is wide, and the device is long
Phase detection drift < 0.1%, long-time stability are good.
Be connected firmly between the micro- leak detection device various pieces of the combustion gas, structure is simple, it is easy for installation, for faint gas leakage
Phenomenon also can accurately detected, and using when be user do not have to gas in the case where, close valve built in gas meter, flow meter to be measured
Door, after some time, the measurement module real-time monitoring gas meter, flow meter outlet side on the micro- leak detection device of combustion gas is between user's gas utensil
Gaseous-pressure, without electric signal, corrosion resistance is superior for core detection part measurement module and measured medium contact material, stablizes
Property it is good, working range is wide, and measurement accuracy is high, has filled up both at home and abroad still specifically for the technology sky of the micro- leak detection of natural gas
It is white.The detection device can accurately detect the micro- leakage phenomenon of the combustion gas in pipe under test, and detection accuracy is high, micro- in gas pipeline
Leakage phenomenon can also detected for 1 percent.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: measurement module 2 is inlaid in the circle among detector shell 1
By the complete encapsulating of measurement module 2 in the cavity of shape and with epoxy glue.Epoxy glue is with adhesion strength is strong, shrinkage is low, chemical property
Stabilization, superior electrical property, with high dielectric property, resistance to surface leakage, resistance to electric arc superior isolation material, can be by measurement module
It is firmly fixed in detector shell without movement.
2 material therefor of measurement module is monocrystalline silicon and ceramics, and monocrystalline silicon and ceramics can directly contact tested medium.Tool
There is higher corrosion resistance, can directly contact tested medium, is highly suitable for gas burning field measurement and uses.Measurement module is
The core detection part of this programme, core detection part material are silicon materials, can directly contact tested medium, and conduction is avoided to be situated between
The loss of confrontation pressure consumes, and substantially increases measurement accuracy.Core detection part measurement module and tested when the program detects
Media contact material is without electric signal, while material is monocrystalline silicon and ceramics, corrosion resistance with higher.
Embodiment 3:
The present embodiment is preferably as follows on the basis of the above embodiments: measurement module 2 includes being responsible in measurement gas pipeline
I of the gauge pressure values that the gauge pressure sensing chip of pressure value and output pressure Value Data, real-time Transmission measure to gas meter, flow meter2C number
Bus, filter and protection circuit, protect circuit and filter to connect with gauge pressure sensing chip, measurement module is able to detect
In or less than 1% the micro- leakage phenomenon of combustion gas, material therefor be monocrystalline silicon and ceramics, can directly contact tested medium, have compared with
Strong corrosion resistance and higher precision.It is responsible for measuring the pressure value and defeated in gas pipeline using high-precision gauge pressure sensing chip
Out, it filters and protects circuit that can promote the performance of the detector, improve the stability and reliability of measurement data.
Measurement module and measured medium contact material are without electric signal, and corrosion resistance is superior, and working range is wide, measurement essence
Degree is high, and gauge pressure sensing chip is anti high overload pressure chip, can satisfy 4-15 times of overload pressure impact.Using using anti high overload
Pressure chip, can meet 4-15 times of overload pressure impact, and overload capacity is strong.
The corrugated stainless steel tubing of jacket for data lines 3 and connecting plate welding are completed, and the rear and front end of corrugated stainless steel tubing is welded
It is connected to connecting plate.Corrugated stainless steel tubing has the characteristics that flexible, light weight, corrosion-resistant, antifatigue, high-low temperature resistant etc. are multinomial, energy
Enough play the role of preferably protecting data line.
The front end connecting plate of jacket for data lines 3 presses with the rear end of detector shell 1 to be connect；The rear end of jacket for data lines 3
Connecting plate is connect with the degree watchcase body for surveying gas meter, flow meter 5.Firm and reliable connection.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of micro- leak detection device of combustion gas, which is characterized in that including detector shell (1), be used for real-time measurement gas meter, flow meter to be measured
(5) measurement module (2) and jacket for data lines (3) of pressure value, detector shell (1) front end external process have screw thread, with
The outlet side of gas meter, flow meter (5) to be measured connects, and is machined with ladder-like circular aperture, circular aperture inside detector shell (1) front end
It is connected with the gauge pressure sensing chip front end on measurement module (2)；Circular cavity, chamber are machined among detector shell (1)
It is embedded with measurement module (2) in vivo；The rear end of detector shell (1) presses with the connecting plate of jacket for data lines (3) and connect, measurement
The connecting line of module (2) is drawn and enter inside jacket for data lines (3) in the degree watchcase body of gas meter, flow meter to be measured (5) and signal
Processing board connection；Measurement module (2) is inlaid in the intermediate circular cavity of detector shell (1) and will measure mould with epoxy glue
Block (2) complete encapsulating.
2. the micro- leak detection device of a kind of combustion gas according to claim 1, which is characterized in that measurement module (2) material therefor is
Monocrystalline silicon and ceramics, monocrystalline silicon and ceramics can directly contact tested medium.
3. a kind of micro- leak detection device of combustion gas described in -2 any one according to claim 1, which is characterized in that measurement module (2)
Including be responsible for measurement gas pipeline in gauge pressure values and export gauge pressure sensing chip, real-time Transmission measure gauge pressure values to
I2C number bus, filter and the protection circuit of gas meter, flow meter, protect circuit and filter to connect with gauge pressure sensing chip, survey
Amount module is able to detect equal to or less than the micro- leakage phenomenon of 1% combustion gas, and material therefor is monocrystalline silicon and ceramics, can directly contact quilt
Tested media.
4. the micro- leak detection device of a kind of combustion gas according to claim 3, which is characterized in that measurement module is contacted with measured medium
For material without electric signal, gauge pressure sensing chip is anti high overload pressure chip, can satisfy 4-15 times of overload pressure impact.
5. the micro- leak detection device of a kind of combustion gas according to claim 1, which is characterized in that jacket for data lines (3) uses stainless steel
Bellows and connecting plate welding are completed, and the rear and front end of corrugated stainless steel tubing is welded with connecting plate.
6. the micro- leak detection device of a kind of combustion gas according to claim 5, which is characterized in that the front end of jacket for data lines (3) connects
Fishplate bar presses with the rear end of detector shell (1) and connect；The rear end connecting plate of jacket for data lines (3) and the degree for surveying gas meter, flow meter (5)
Number watchcase body connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810095755.2A CN108302332B (en) | 2018-01-31 | 2018-01-31 | A kind of micro- leak detection device of combustion gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810095755.2A CN108302332B (en) | 2018-01-31 | 2018-01-31 | A kind of micro- leak detection device of combustion gas |
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| CN108302332A CN108302332A (en) | 2018-07-20 |
| CN108302332B true CN108302332B (en) | 2019-10-15 |
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| CN201810095755.2A Active CN108302332B (en) | 2018-01-31 | 2018-01-31 | A kind of micro- leak detection device of combustion gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU205249U1 (en) * | 2020-12-22 | 2021-07-06 | Общество с ограниченной ответственностью "Газпром трансгаз Ухта" | DEVICE FOR SAMPLING THE GAS-AIR MEDIUM FROM THE CAVITY OF THE PROTECTIVE CASING OF THE MAIN GAS PIPELINE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201138258Y (en) * | 2008-01-07 | 2008-10-22 | 南京高华科技有限公司 | Surface mounted combined pressure sensor |
| CN203101357U (en) * | 2012-12-28 | 2013-07-31 | 重庆川仪分析仪器有限公司 | Replaceable fixed gas alarm |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060083Y (en) * | 2007-07-16 | 2008-05-14 | 阿尔法仪器(天津)有限公司 | Overload protection device of gas pressure sensor |
| CN204575240U (en) * | 2015-01-19 | 2015-08-19 | 西安微纳传感器研究所有限公司 | A kind of pressure unit |
| CN205981540U (en) * | 2016-08-15 | 2017-02-22 | 西安森瑟斯传感器有限责任公司 | Stifled pressure transmitter of ice that shocks resistance |
| CN206862552U (en) * | 2017-05-17 | 2018-01-09 | 湖南工程学院 | For measuring the pressure transmitter of high-tension switch gear |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138258Y (en) * | 2008-01-07 | 2008-10-22 | 南京高华科技有限公司 | Surface mounted combined pressure sensor |
| CN203101357U (en) * | 2012-12-28 | 2013-07-31 | 重庆川仪分析仪器有限公司 | Replaceable fixed gas alarm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU205249U1 (en) * | 2020-12-22 | 2021-07-06 | Общество с ограниченной ответственностью "Газпром трансгаз Ухта" | DEVICE FOR SAMPLING THE GAS-AIR MEDIUM FROM THE CAVITY OF THE PROTECTIVE CASING OF THE MAIN GAS PIPELINE |
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