CN106706200B - A kind of manufacturing method of pressure detector - Google Patents
A kind of manufacturing method of pressure detector Download PDFInfo
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- CN106706200B CN106706200B CN201611007841.0A CN201611007841A CN106706200B CN 106706200 B CN106706200 B CN 106706200B CN 201611007841 A CN201611007841 A CN 201611007841A CN 106706200 B CN106706200 B CN 106706200B
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- pressure
- layer
- shell
- tappings
- sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
Abstract
The invention discloses a kind of pressure detectors; including shell; pressure sensor and circuit board are installed in the shell; the pressure tappings for measuring pressure are provided on shell; transmit the impulse piping connection pressure sensor and circuit board of pressure; pressure sensor is diaphragm type sensor, including pedestal, varistor layer and membrane layer, is additionally provided with one layer of protective layer moving up and down between the pressure tappings of shell above membrane layer.A kind of pressure detector of the invention, adds layer protecting film on pressure sensor, to protect the pressure detecting of high temperature highly corrosive gas or liquid.The invention also discloses a kind of manufacturing methods of pressure detector; it is bonded between each layer of pressure sensor secured; it is not easy degumming; and protective layer increases one layer of coating again on the thin polymer film of itself; made using spraying process Nian Jie close between particle and substrate, and service performance is superior.
Description
Technical field
The present invention relates to a kind of physical quantity detector and its manufacturing method, in particular to a kind of manufacturer of pressure detector
Method.
Background technique
Pressure is one of technological parameter important in industrial processes, and correctly measurement and control pressure are to guarantee industry
The good operation of production process, reaches the important link of high good low consumption and safety in production.
Pressure is vertical and uniformly acts on the power on unit area.It includes gravitational equilibrium method, example that it, which detects big method,
Such as Liquid Column Manometer, piston gage；Spring balanced method, mechanical force balancing method, property measurement method, such as strain-type,
Pressure type, capacitance pressure transducer, etc..
It is a kind of sensor the most commonly used in industrial practice that pressure sensor, which draws, is widely used in various industrial automatic controls
Environment is related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, aerospace, military project, petrochemical industry, oil well, electric power, ship
Numerous industries such as oceangoing ship, lathe, pipeline.Existing pressure detector has a single function mostly, and it is gentle cannot to adapt to simultaneously fluid pressure
The measurement of body pressure, or the measurement of high temperature and low temperature cannot be adapted to simultaneously, so use scope is smaller.
Summary of the invention
The technical problem to be solved in the invention is that the general scope of application of existing pressure detector is small, and versatility is not strong,
So that it is many kinds of, it is inconvenient to use.
In order to solve the above technical problems, the present invention provides a kind of pressure detector, including shell, pacify in the shell
Equipped with pressure sensor and circuit board, it is provided with the first pressure tappings for measuring pressure on shell, transmits the impulse pipeline of pressure
Pressure sensor and circuit board are connected, circuit board is connected with display screen, and display screen setting is in hull outside, and wherein circuit board connects
Have a power supply, pressure sensor is diaphragm type sensor, including pedestal, varistor layer and membrane layer, above membrane layer with shell
One layer of protective layer moving up and down is additionally provided between first pressure tappings, frame, the frame is arranged in the protective layer surrounding
It can be moved along the inner sidewall of shell, flexible guarantor is set between the inner walls of the first pressure tappings of frame edge and setting
Cuticula.A kind of pressure detector of the invention, adds layer protecting film on pressure sensor, to protect high temperature highly corrosive gas
The pressure detecting of body or liquid, and protective layer is not fixedly mounted by pressure automatic paste tightening surface on a sensor,
Thus protective film can be replaced, and avoid damage pressure sensor.
It is wherein preferred, the downside of frame is provided with boss, is set in the corresponding position of the scaffold of membrane layer
It is equipped with the compatible groove of shape, surface is provided with the anticorrosion of siliceous powder sputtering on the protection layer and ceramics resistant to high temperature are protected
Protect coating.Boss and groove detent are set between frame and pressure sensor, and boss can be set to a circle, may be set to be
Anticorrosion and ceramic protective coating resistant to high temperature are arranged on the protection layer, increases and protects for L-type boss at four, framework underside face angle
The durability of sheath, prolongs the service life.
Further improvement lies in that being additionally provided with the second pressure tappings, second pressure tappings and the first pressure in shell side
Mouth is connected to the same inlet pipeline, and tube wall temperature sensor is provided on inlet pipeline, and the temperature sensor information passes
It is defeated to the control device that hull outside is arranged in, control device control manage in the flow direction of gas or liquid；In the first pressure tappings and
Tube wall temperature sensor is also equipped on second pressure tappings, the information of two tube wall temperature sensors also communicates to control device,
With in detection pipe liquid or gas temperature it is whether excessively high.Two pressure tappings are set, using tube wall temperature sensor control to
The flow direction for surveying liquid or gas, is measured by the first pressure tappings when temperature is higher, can increase the protection of protective layer, when
Temperature is that can be can be detected using the second common pressure tappings lower than 50 DEG C, and two pressure tappings are used cooperatively, both according to temperature
Liquid to be measured or gas are classified, and with the use of the service life that can extend equipment, improved efficiency.
Wherein, manual switch valve is also respectively provided on the first pressure tappings and the second pressure tappings.It is needing to manually adjust
Testing liquid or gas just have manual switch valve when flowing to, be easy to use, so that equipment is more humanized.
The present invention also provides a kind of manufacturing methods of pressure detector, it is characterised in that the following steps are included:
1) first membrane layer and varistor layer are bonded together, on the outline border of membrane layer and the outline border opposite flank of varistor layer
It is coated with bonded adhesives, and is bonded 2-3 minutes in 30 DEG C -50 DEG C of at a temperature of compression, is then cooled to room temperature；
2) bonding membrane layer is bonded together together with varistor layer with pedestal again, in the outline border downside of varistor layer
Be coated with bonded adhesives on pedestal, and 30 DEG C -50 DEG C at a temperature of compress bonding 2-3 minutes, then cool to room temperature；
3) protective layer is made, protective layer uses thin polymer film, and uses splash work in the thin polymer film upper surface
Skill sputters the powder coating of material, and wherein the percentage of silicon is greater than 60%；
4) protective layer is fixed in frame, then frame is installed to enclosure interior, below the first pressure tappings, and in frame
Flexible protective film is fixedly connected between surrounding and the inner walls of the first pressure tappings of setting；
5) pressure sensor, impulse pipeline and circuit board are installed in shell, and pressure sensor and circuit board with
The gap location potting resin material of shell is sealed fixation；
6) the first pressure tappings and the second pressure tappings are finally connected to inlet pipeline with pipeline, and in the first pressure tappings and
Tube wall temperature sensor is respectively mounted on two pressure tappings and inlet pipeline, three tube wall temperature sensors are all connected to control dress
It sets.
Wherein, groove is set between frame and case inside wall and compatible boss guide frame edge can be with inner sidewall
Movement；Spraying process carries out splash coating using exposure mask in step 3.
A kind of manufacturing method of pressure detector of the invention, bonding securely, is not easy between each layer of pressure sensor
Degumming, and protective layer increases one layer of coating on the thin polymer film of itself, makes particle and base using spraying process
Be bonded close between material, and service performance is superior, and spraying process combines suitable exposure mask, can be effectively controlled the thickness of coating with
And distribution, improve the efficiency of spraying process with effect, all parts need fixed to be filled using resin material in shell
Fixed, sealing effect is good, and is bonded secured.
Entire pressure detector is oriented to the flow direction of under test gas or liquid using temperature control, easy to control, and in pressure tappings
One tube wall temperature sensor is being set to determine the actual temperature of the gas or liquid that enter shell, further progress prison
Control.
A kind of pressure detector of the invention and its manufacturing method, realize the multifunctional use of pressure detector, can be same
The measurement of Shi Shiying fluid pressure and gas pressure can adapt to the measurement of high temperature and low temperature, for the liquid of general corrosion simultaneously
Body etc. is also that can be used, thus applied widely, improves the service efficiency of equipment, reduces cost.And it is of the invention
Detector fabrication process advantages of simple, easily manufactured, replacement and maintenance are also very convenient, and the protective layer for being easier damage can also be with
It is individually replaced, thus is suitble to promote, replace miscellaneous all kinds of pressure detectors.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of pressure sensor of the present invention；
Wherein, 1- shell, 2- pressure sensor, 3- circuit board, 4- pressure tappings, 5- impulse pipeline, 6- display screen, 7- base
Seat, 8- varistor layer, 9- membrane layer, 10- protective layer, 11- frame, 12- flexible protective film, 13- boss, 14- groove, 15- second
Pressure tappings, 16- tube wall temperature sensor, 17- manual switch valve.
Specific embodiment
The optimal technical scheme that the invention will now be described in detail with reference to the accompanying drawings.
As shown, a kind of pressure detector of the invention, including shell 1, pressure sensing is installed in the shell 1
Device 2 and circuit board 3 are provided with the first pressure tappings 4 for measuring pressure on shell 1, and the impulse pipeline 5 for transmitting pressure connects pressure
Sensor 2 and circuit board 3, circuit board 3 are connected with display screen 6, and the setting of display screen 6 is in 1 outside of shell, and wherein circuit board 3 connects
There is a power supply, pressure sensor 2 is diaphragm type sensor, including pedestal 7, varistor layer 8 and membrane layer 9, above membrane layer 9 and shell
One layer of protective layer 10 moving up and down is additionally provided between first pressure tappings of body 1, frame is arranged in 10 surrounding of protective layer
11, the frame 11 can be moved along the inner sidewall of shell 1, in the shell of the first pressure tappings 4 of 11 edge of frame and setting
Flexible protective film 12 is provided between wall.
Wherein, the downside of frame 11 is provided with boss 13, is arranged in the corresponding position of the scaffold of membrane layer 9
Have the compatible groove 14 of shape, 10 upper surface of protective layer be provided with siliceous powder sputtering anticorrosion and ceramics resistant to high temperature
Protective coating.
Further, the second pressure tappings 15, second pressure tappings 15 and the first pressure tappings are additionally provided in 1 side of shell
4 are connected to the same inlet pipeline, and tube wall temperature sensor 16,16 information of temperature sensor are provided on inlet pipeline
It is transferred to the control device that 1 outside of shell is set, the flow direction of interior gas or liquid is managed in control device control；In the first pressure tappings
4 and second are also equipped with tube wall temperature sensor 16 on pressure tappings 15, and the information of two tube wall temperature sensors 16 also communicates to
Control device, in detection pipe liquid or gas temperature it is whether excessively high, on the first pressure tappings 4 and the second pressure tappings 15 also
It is respectively arranged with manual switch valve 17.
The present invention also provides a kind of manufacturing methods of pressure detector, comprising the following steps:
1) first membrane layer and varistor layer are bonded together, on the outline border of membrane layer and the outline border opposite flank of varistor layer
It is coated with bonded adhesives, and is bonded 2-3 minutes in 30 DEG C -50 DEG C of at a temperature of compression, is then cooled to room temperature；
2) bonding membrane layer is bonded together together with varistor layer with pedestal again, in the outline border downside of varistor layer
Be coated with bonded adhesives on pedestal, and 30 DEG C -50 DEG C at a temperature of compress bonding 2-3 minutes, then cool to room temperature；
3) protective layer is made, protective layer uses thin polymer film, and uses splash work in the thin polymer film upper surface
Skill sputters the powder coating of material, and wherein the percentage of silicon is greater than 60%；
4) protective layer is fixed in frame, then frame is installed to enclosure interior, below the first pressure tappings, and in frame
Flexible protective film is fixedly connected between surrounding and the inner walls of the first pressure tappings of setting；
5) pressure sensor, impulse pipeline and circuit board are installed in shell, and pressure sensor and circuit board with
The gap location potting resin material of shell is sealed fixation；
6) the first pressure tappings and the second pressure tappings are finally connected to inlet pipeline with pipeline, and in the first pressure tappings and
Tube wall temperature sensor is respectively mounted on two pressure tappings and inlet pipeline, three tube wall temperature sensors are all connected to control dress
It sets.
Wherein, groove is set between frame and case inside wall and compatible boss guide frame edge can be with inner sidewall
Movement；Spraying process carries out splash coating using exposure mask in step 3.
A kind of pressure detector of the invention, adds layer protecting film on pressure sensor, to protect high temperature high corrosion
The pressure detecting of property gas or liquid, and protective layer is not fixed by pressure automatic paste tightening surface on a sensor
Installation, thus protective film can be replaced, and damage pressure sensor is avoided.
Boss and groove detent are set between frame and pressure sensor, and boss can be set to a circle, also can be set
For anticorrosion and ceramic protective coating resistant to high temperature in the L-type boss at four, framework underside face angle, are arranged on the protection layer, increase
The durability of protective layer, prolongs the service life.
Two pressure tappings are set, the flow direction of testing liquid or gas are controlled using tube wall temperature sensor, when temperature is higher
When measured by pressure tappings, the protection of protective layer can be increased, when temperature be lower than 50 DEG C can be using common second
Pressure tappings can be detected, and two pressure tappings are used cooperatively, and was both classified according to temperature to liquid to be measured or gas, and
With the use of the service life that can extend equipment, improve efficiency.
Just there is manual switch valve when flowing to need to manually adjust testing liquid or gas, is easy to use, so that equipment
It is more humanized.
A kind of manufacturing method of pressure detector of the invention, bonding securely, is not easy between each layer of pressure sensor
Degumming, and protective layer increases one layer of coating on the thin polymer film of itself, makes particle and base using spraying process
Be bonded close between material, and service performance is superior, and spraying process combines suitable exposure mask, can be effectively controlled the thickness of coating with
And distribution, improve the efficiency of spraying process with effect, all parts need fixed to be filled using resin material in shell
Fixed, sealing effect is good, and is bonded secured.
Entire pressure detector is oriented to the flow direction of under test gas or liquid using temperature control, easy to control, and in pressure tappings
One tube wall temperature sensor is being set to determine the actual temperature of the gas or liquid that enter shell, further progress prison
Control.
A kind of pressure detector of the invention and its manufacturing method, realize the multifunctional use of pressure detector, can be same
The measurement of Shi Shiying fluid pressure and gas pressure can adapt to the measurement of high temperature and low temperature, for the liquid of general corrosion simultaneously
Body etc. is also that can be used, thus applied widely, improves the service efficiency of equipment, reduces cost.And it is of the invention
Detector fabrication process advantages of simple, easily manufactured, replacement and maintenance are also very convenient, and the protective layer for being easier damage can also be with
It is individually replaced, thus is suitble to promote, replace miscellaneous all kinds of pressure detectors.
Claims (3)
1. a kind of manufacturing method of pressure detector, it is characterised in that: pressure detector includes shell, is installed in the shell
There are pressure sensor and circuit board, the first pressure tappings for measuring pressure are provided on shell, the impulse pipeline for transmitting pressure connects
Pressure sensor and circuit board are connect, circuit board is connected with display screen, and display screen is arranged in hull outside, and wherein circuit board is connected with
Power supply；Pressure sensor is diaphragm type sensor, and pressure sensor includes pedestal, varistor layer and membrane layer, above membrane layer
One layer of protective layer moving up and down is additionally provided between the first pressure tappings of shell, frame is arranged in the protective layer surrounding,
The frame can be moved along the inner sidewall of shell, be arranged between the inner walls of the first pressure tappings of frame edge and setting
Flexible protective film；
The downside of frame is provided with boss, it is compatible that the corresponding position of the scaffold of membrane layer is provided with shape
Groove；The second pressure tappings are additionally provided in shell side, second pressure tappings and the first pressure tappings are connected to the same import
Pipeline is provided with tube wall temperature sensor on inlet pipeline, and the temperature sensor information, which is transferred to, to be arranged in hull outside
Control device, control device control manage in gas or liquid flow direction；It is also provided on the first pressure tappings and the second pressure tappings
Have tube wall temperature sensor, the information of two tube wall temperature sensors also communicates to control device, in detection pipe liquid or
Whether person's gas temperature is excessively high；Manual switch valve is also respectively provided on the first pressure tappings and the second pressure tappings；
The manufacturing method of pressure detector the following steps are included:
1) first membrane layer and varistor layer are bonded together, is applied on the outline border of membrane layer and the outline border opposite flank of varistor layer
It is covered with bonded adhesives, and is bonded 2-3 minutes in 30 DEG C -50 DEG C of at a temperature of compression, is then cooled to room temperature；
2) bonding membrane layer is bonded together together with varistor layer with pedestal again, in the outline border downside of varistor layer and base
It is coated with bonded adhesives on seat, and is bonded 2-3 minutes in 30 DEG C -50 DEG C of at a temperature of compression, then cools to room temperature；
3) protective layer is made, protective layer uses thin polymer film, and splashes in the thin polymer film upper surface using spraying process
The powder coating of material is penetrated, wherein the percentage of silicon is greater than 60%；
4) protective layer is fixed in frame, then frame is installed to enclosure interior, below the first pressure tappings, and in frame surrounding
Flexible protective film is fixedly connected between the inner walls of the first pressure tappings of setting；
5) pressure sensor, impulse pipeline and circuit board are installed in shell, and in pressure sensor and circuit board and shell
Gap location potting resin material be sealed fixation；
6) the first pressure tappings and the second pressure tappings are finally connected to inlet pipeline with pipeline, and are taken in the first pressure tappings and second
It is respectively mounted tube wall temperature sensor on pressure mouth and inlet pipeline, three tube wall temperature sensors are all connected to control device.
2. a kind of manufacturing method of pressure detector as described in claim 1, it is characterised in that: in frame and case inside wall
Between setting groove and compatible boss guide frame edge can moving with inner sidewall.
3. a kind of manufacturing method of pressure detector as described in claim 1, it is characterised in that: spraying process in step 3
Splash coating is carried out using exposure mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007841.0A CN106706200B (en) | 2016-11-16 | 2016-11-16 | A kind of manufacturing method of pressure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007841.0A CN106706200B (en) | 2016-11-16 | 2016-11-16 | A kind of manufacturing method of pressure detector |
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| Publication Number | Publication Date |
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| CN106706200A CN106706200A (en) | 2017-05-24 |
| CN106706200B true CN106706200B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611007841.0A Active CN106706200B (en) | 2016-11-16 | 2016-11-16 | A kind of manufacturing method of pressure detector |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109253831A (en) * | 2018-10-10 | 2019-01-22 | 南京佳业检测工程有限公司 | A kind of industrial combustion furnace pressure-detecting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141557U (en) * | 2011-06-28 | 2012-02-08 | 北京布莱迪仪器仪表有限公司 | Absolute pressure gauge |
| CN102650559A (en) * | 2011-02-25 | 2012-08-29 | 精工爱普生株式会社 | Physical quantity detector and method of manufacturing the same |
| CN103245456A (en) * | 2012-02-09 | 2013-08-14 | Smc株式会社 | Pressure detector |
| CN104515637A (en) * | 2013-09-27 | 2015-04-15 | 罗斯蒙特公司 | Pressure sensor with mineral insulated cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001159573A (en) * | 1999-12-03 | 2001-06-12 | Yamatake Corp | Pressure detecting device |
| JP3915474B2 (en) * | 2001-11-02 | 2007-05-16 | 株式会社ジェイ・エム・エス | Pressure detector |
-
2016
- 2016-11-16 CN CN201611007841.0A patent/CN106706200B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650559A (en) * | 2011-02-25 | 2012-08-29 | 精工爱普生株式会社 | Physical quantity detector and method of manufacturing the same |
| CN202141557U (en) * | 2011-06-28 | 2012-02-08 | 北京布莱迪仪器仪表有限公司 | Absolute pressure gauge |
| CN103245456A (en) * | 2012-02-09 | 2013-08-14 | Smc株式会社 | Pressure detector |
| CN104515637A (en) * | 2013-09-27 | 2015-04-15 | 罗斯蒙特公司 | Pressure sensor with mineral insulated cable |
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| CN106706200A (en) | 2017-05-24 |
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