CN108151952A - A kind of double diaphragm leakage protection diaphragms - Google Patents
A kind of double diaphragm leakage protection diaphragms Download PDFInfo
- Publication number
- CN108151952A CN108151952A CN201810081859.8A CN201810081859A CN108151952A CN 108151952 A CN108151952 A CN 108151952A CN 201810081859 A CN201810081859 A CN 201810081859A CN 108151952 A CN108151952 A CN 108151952A
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- CN
- China
- Prior art keywords
- monitoring
- pressure gauge
- hollow pipeline
- oil
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0672—Leakage or rupture protection or detection
Abstract
The present invention relates to a kind of double diaphragm leakages to protect diaphragms, including：Main aobvious pressure gauge, monitoring pressure gauge, pedestal, monitoring connecting rod, main aobvious connecting rod, monitoring first of isolation diaphragm of pressure gauge and main aobvious pressure gauge second isolation diaphragm；It is equipped with monitoring hollow pipeline, main aobvious hollow pipeline and oil filler point on pedestal successively from left to right；It monitors connecting rod and is equipped with hollow pipeline I, main aobvious connecting rod is equipped with hollow pipeline II；The main pressure gauge that shows is connect by main aobvious connection mother living with main aobvious connecting rod, and main aobvious connecting rod is welded on pedestal, and hollow pipeline II is made to be directed at main aobvious hollow pipeline；Monitoring pressure gauge is connect by monitoring connection mother living with monitoring connecting rod, and monitoring connecting rod is welded on pedestal, and hollow pipeline I is made to be directed at monitoring hollow pipeline；The bottom, right side wall for monitoring hollow pipeline is connect with main aobvious pressure gauge second isolation diaphragm, and the bottom left wall for monitoring hollow pipeline is connect with monitoring first of isolation diaphragm of pressure gauge.
Description
Technical field
The present invention relates to a kind of pressure gauge, specifically a kind of double diaphragm leakage protection diaphragms.
Background technology
Existing diaphragm can not detect whether isolation diaphragm is corroded, and can cause inside diaphragm in this way
Leakage pollution pipeline occurs for liquid, therefore the present invention proposes a kind of double diaphragm leakage protection diaphragms, in common diaphragm
A 40mm monitoring pressure gauge is increased on the basis of pressure gauge, can detect whether isolation diaphragm is corroded in real time, can prevent from pressing
Leakage pollution food conduit and medical pipeline occur for the liquid inside power table.
Invention content
For defect in the prior art, the purpose of the present invention is to provide a kind of double diaphragm leak protection diaphragm pressures
Power table is a kind of new types of diaphragm pressure gauge, deepens research on the basis of original common diaphragm pressure gauge and makes double diaphragm leakages
Protect diaphragm.Double diaphragm leak protection diaphragms are on the basis of original common diaphragm pressure gauge from the appearance
A 40mm monitoring pressure gauge is increased to outside, wherein having carried out specialization to internal major design and outside manufacture structure
Optimizing Reconstruction.
To achieve the above objectives, the technical solution adopted by the present invention is that：
A kind of double diaphragm leak protection diaphragms, including：Main aobvious pressure gauge 1, monitoring pressure gauge 2, pedestal, monitoring connect
Extension bar 4, main aobvious connecting rod 10, first of isolation diaphragm of monitoring pressure gauge 5 and main aobvious pressure gauge second isolation diaphragm 7；
It is equipped with monitoring hollow pipeline, main aobvious hollow pipeline and oil filler point on the pedestal successively from left to right；The monitoring
The middle part of connecting rod 4 is equipped with hollow pipeline I, and the middle part that the master shows connecting rod 10 is equipped with hollow pipeline II；
The master shows pressure gauge 1 and is connect by main aobvious connection mother 11 living with main aobvious connecting rod 10, and the master shows connecting rod 10
It is welded on pedestal by the way of argon arc welding, makes the main aobvious hollow pipeline of the alignment of hollow pipeline II；The monitoring pressure gauge 2 is logical
It crosses monitoring connection mother 3 living to connect with monitoring connecting rod 4, the monitoring connecting rod 4 is welded on pedestal by the way of argon arc welding
On, make the alignment monitoring hollow pipeline of hollow pipeline I；The bottom, right side wall of the monitoring hollow pipeline and main aobvious pressure gauge second
Isolation diaphragm 7 connects, and the bottom left wall for monitoring hollow pipeline is connect with monitoring first of isolation diaphragm of pressure gauge 5, the master
The top for showing pressure gauge second isolation diaphragm 7 shows hollow tube to seal oil-filled chamber 6, the oil-filled chamber 6 of sealing with main
Road and oil filler point unicom, the oil filler point are used for oily to injection in oil-filled chamber 6 is sealed.
On the basis of said program, the top of the oil filler point is threadedly coupled with oil-filled hole housing screw 9, the oiling
Oil-filled hole sealing column 8 is equipped in hole, oil-filled hole sealing column 8 is located at the lower section of oil-filled hole housing screw 9.
On the basis of said program, the monitoring pressure gauge 2 monitors pressure gauge for 40mm.
On the basis of said program, the hollow pipeline I is connect with the bourdon tube in monitoring pressure gauge 2, described hollow
Pipeline II is connect with the bourdon tube in main aobvious pressure gauge 1.
On the basis of said program, the oil is high temperature resistant silicone oil.
On the basis of said program, the accuracy of double diaphragm leak protection diaphragms is：± 1.6%, ±
2.5%, measurement range is：0~0.1,0~0.16,0~0.25,0~0.4,0~0.6,0~1,0~1.6,0~2.5,0~
4th, 0~6,0~10,0~16,0~25MPa.
Advantages of the present invention：
1st, structure design is simple, easy to install and use；
2nd, feel more relieved in food hygiene and pharmaceuticals industry use.
Description of the drawings
The present invention has drawings described below：
The bis- diaphragm leak protection diaphragm outside drawings of Fig. 1；
The bis- diaphragm leak protection diaphragm structure diagrams of Fig. 2；
The bis- diaphragm leak protection diaphragm part-structure schematic diagrams of Fig. 3；
In figure：
1---- master shows pressure gauge；2---- monitors pressure gauge；3---- monitoring connections are living female；4---- monitors connecting rod；
5--- monitors first of isolation diaphragm of pressure gauge；6--- seals oil-filled chamber；7---- master shows pressure gauge second isolation diaphragm；
The oil-filled hole sealing columns of 8----；The oil-filled hole housing screws of 9----；10---- master shows connecting rod；It is living female that 11---- master shows connection.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing 1-3.
Double diaphragm leak protection diaphragm structure ＆ working mechanisms：Double diaphragm leak protection diaphragms are not having
In the case of any pressure medium or gas pressure, main aobvious pressure gauge 1 is entirely 0 point of position with the display for monitoring pressure gauge 2
It puts, when pressure medium or gas pressure are generated inside pipeline；Pressure is mobile inside the pipeline to pass to monitoring pressure gauge the
One of isolation diaphragm 5.
When monitoring first of isolation diaphragm of pressure gauge 5, which touches internal pipe pressure, to be squeezed；Monitor pressure gauge first
Isolation diaphragm 5 shifts up while will be passed to main aobvious pressure gauge second isolation diaphragm 7, monitor at this time first of pressure gauge every
From both diaphragm 5 and main aobvious pressure gauge second isolation diaphragm 7 simultaneously by pressure transmission to the high temperature resistant sealed in oil-filled chamber 6
Silicone oil, seals the pressure extrusion that the high temperature resistant silicone oil in oil-filled chamber 6 touches the two, and high temperature resistant silicone oil is upward in chamber interior
Fang Liudong is passed at the bourdon tube of main aobvious pressure gauge 1, and bourdon tube touches high temperature resistant silicon oil pressure and squeezes generation displacement drive
Movement and point gear at this time generate monitoring first of isolation diaphragm of pressure gauge 5 and main aobvious pressure gauge second isolation diaphragm 7
Linear displacement amount be transformed into the rotationally-varying amount of pointer.So as to form the pressure for being equivalent to P, conduct to main aobvious pressure gauge
Current tested pipeline pressure medium or gas pressure are shown on 1.Monitoring pressure gauge 2 on show current tested pipeline pressure medium or
Gas pressure value is still 0 pressure, and the point gear above dial is still 0 point of position.
Double diaphragm leak protection diaphragms occur on tested pipeline monitoring pressure gauge 2 show pressure value or with
When pressure value shown by main aobvious pressure gauge 1 is identical, it was demonstrated that the medium or gas of this pipeline are by main aobvious pressure gauge second
Road isolation diaphragm 7 corrodes.
Double diaphragm leak protection diaphragms mainly use indirect measurement structure, greatly, easily crystallized suitable for measuring viscosity,
Pressure with granular solids medium in corrosivity is big, temperature is higher liquid, gas.Isolation diaphragm is there are many material, with suitable
Answer various different Korrosionsmediums.
Using：Double diaphragm leak protection diaphragms are suitable for measuring relatively be corrosive chemical industry liquid or gas Jie
The pressure of matter, be widely used in chemical fibre, synthetic fibers, oil, chemical machinery, dyeization, alkaline, metallurgical electric power, space flight it is electromechanical,
The industry such as nuclear power station.It is that double diaphragm leak protection diaphragms can also be made as lustration type most to show uniqueness, clean
Degree grade is divided into A grades, BA grades and EP grades three types.The present invention makes mainly around the sanitation-grade of food medicine, unique
Property increase, prevent the liquid inside double diaphragm leak protection diaphragms from leakage pollution food conduit and medicine pipe occurs
The staple product suitable for measuring sanitary line and health industry is described as in road etc. extensively.
Accuracy：± 1.6%, ± 2.5%, measurement range (MPa):0~0.1,0~0.16,0~0.25,0~0.4,0
~0.6,0~1,0~1.6,0~2.5,0~4,0~6,0~10,0~16,0~25 etc..Diaphragm material：SUS (316L) is breathed out
Family name's alloy C (H276C), monel metal (Cu30NI70), tantalum alloy (Ta), titanium alloy (Ti), nickel alloy (Ni) etc..Gasket
Material：Nitrile rubber, fluoroplastics, PTFE.
The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (6)
1. a kind of double diaphragm leak protection diaphragms, which is characterized in that including：Main aobvious pressure gauge (1), monitoring pressure gauge
(2), pedestal, monitoring connecting rod (4), main aobvious connecting rod (10), monitoring first of isolation diaphragm of pressure gauge (5) and main aobvious pressure gauge
Second isolation diaphragm (7)；
It is equipped with monitoring hollow pipeline, main aobvious hollow pipeline and oil filler point on the pedestal successively from left to right；The monitoring connection
The middle part of bar (4) is equipped with hollow pipeline I, and the middle part that the master shows connecting rod (10) is equipped with hollow pipeline II；
The master shows pressure gauge (1) and is connect by main aobvious connection female (11) living with main aobvious connecting rod (10), and the master shows connecting rod
(10) it is welded on pedestal by the way of argon arc welding, makes the main aobvious hollow pipeline of the alignment of hollow pipeline II；The monitoring pressure
Table (2) connects female (3) living by monitoring and is connect with monitoring connecting rod (4), described to monitor side of the connecting rod (4) using argon arc welding
Formula is welded on pedestal, makes the alignment monitoring hollow pipeline of hollow pipeline I；The bottom, right side wall of the monitoring hollow pipeline is shown with main
Pressure gauge second isolation diaphragm (7) connects, and monitors the bottom left wall of hollow pipeline and monitoring first of isolation film of pressure gauge
Piece (5) connects, and the master shows the top of pressure gauge second isolation diaphragm (7) to seal oil-filled chamber (6), and the sealing is oil-filled
Chamber (6) is with main aobvious hollow pipeline and oil filler point unicom, and the oil filler point is for the injection oil into sealing oil-filled chamber (6).
2. diaphragm leak protection diaphragms as described in claim 1 double, which is characterized in that the top of the oil filler point with
Oil-filled hole housing screw (9) is threadedly coupled, and oil-filled hole sealing column (8) is equipped in the oil filler point, and oil-filled hole sealing column (8) is located at
The lower section of oil-filled hole housing screw (9).
3. double diaphragm leak protection diaphragms as described in claim 1, which is characterized in that the monitoring pressure gauge (2)
Pressure gauge is monitored for 40mm.
4. double diaphragm leak protection diaphragms as described in claim 1, which is characterized in that the hollow pipeline I and prison
Bourdon tube connection in measuring pressure table (2), the hollow pipeline II are connect with the bourdon tube in main aobvious pressure gauge (1).
5. double diaphragm leak protection diaphragms as described in claim 1, which is characterized in that the oil is high temperature resistant silicon
Oil.
6. double diaphragm leak protection diaphragms as described in claim 1-5 any claims, which is characterized in that described
The accuracy of double diaphragm leak protection diaphragms is：± 1.6%, ± 2.5%, measurement range is：0~0.1,0~0.16,
0~0.25,0~0.4,0~0.6,0~1,0~1.6,0~2.5,0~4,0~6,0~10,0~16,0~25MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081859.8A CN108151952A (en) | 2018-01-29 | 2018-01-29 | A kind of double diaphragm leakage protection diaphragms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081859.8A CN108151952A (en) | 2018-01-29 | 2018-01-29 | A kind of double diaphragm leakage protection diaphragms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108151952A true CN108151952A (en) | 2018-06-12 |
Family
ID=62459039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081859.8A Pending CN108151952A (en) | 2018-01-29 | 2018-01-29 | A kind of double diaphragm leakage protection diaphragms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108151952A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3121799A1 (en) * | 1981-06-02 | 1982-12-23 | Alexander Wiegand Gmbh U. Co Armaturen- U. Manometerfabrik, 8763 Klingenberg | Measuring diaphragm for countering diffusion of pressure media |
| CN2077123U (en) * | 1990-10-10 | 1991-05-15 | 煤炭科学研究总院唐山分院 | Pipe thick liquid-delivery pressure-surveying device |
| JPH09166512A (en) * | 1995-12-15 | 1997-06-24 | T & T:Kk | Fluid pressure sensor |
| DE19949831A1 (en) * | 1999-10-15 | 2001-04-19 | Wika Alexander Wiegand Gmbh | Membrane pressure sensor for corrosive fluids has evacuated double membrane give rupture warning for any pressure |
| JP2004245599A (en) * | 2003-02-10 | 2004-09-02 | Denso Corp | Structure of pressure sensor |
| CN101413839A (en) * | 2008-11-25 | 2009-04-22 | 沈阳市传感技术研究所 | Anti-corrosion diaphragm for sensor and preparing method thereof |
| CN101839788A (en) * | 2010-03-15 | 2010-09-22 | 常州赛尔克瑞特电气有限公司 | Gas pressure detection sensing device for gas charging cabinet |
| CN202066613U (en) * | 2011-05-30 | 2011-12-07 | 中国电子科技集团公司第四十九研究所 | Oil-filled temperature pressure combined sensor |
| US20160349128A1 (en) * | 2015-05-26 | 2016-12-01 | Wika Alexander Wiegand Se & Co. Kg | Diaphragm pressure gauge with monitoring function |
| CN208091623U (en) * | 2018-01-29 | 2018-11-13 | 北京布莱迪仪器仪表有限公司 | A kind of double diaphragm leak protection diaphragms |
-
2018
- 2018-01-29 CN CN201810081859.8A patent/CN108151952A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3121799A1 (en) * | 1981-06-02 | 1982-12-23 | Alexander Wiegand Gmbh U. Co Armaturen- U. Manometerfabrik, 8763 Klingenberg | Measuring diaphragm for countering diffusion of pressure media |
| CN2077123U (en) * | 1990-10-10 | 1991-05-15 | 煤炭科学研究总院唐山分院 | Pipe thick liquid-delivery pressure-surveying device |
| JPH09166512A (en) * | 1995-12-15 | 1997-06-24 | T & T:Kk | Fluid pressure sensor |
| DE19949831A1 (en) * | 1999-10-15 | 2001-04-19 | Wika Alexander Wiegand Gmbh | Membrane pressure sensor for corrosive fluids has evacuated double membrane give rupture warning for any pressure |
| JP2004245599A (en) * | 2003-02-10 | 2004-09-02 | Denso Corp | Structure of pressure sensor |
| CN101413839A (en) * | 2008-11-25 | 2009-04-22 | 沈阳市传感技术研究所 | Anti-corrosion diaphragm for sensor and preparing method thereof |
| CN101839788A (en) * | 2010-03-15 | 2010-09-22 | 常州赛尔克瑞特电气有限公司 | Gas pressure detection sensing device for gas charging cabinet |
| CN202066613U (en) * | 2011-05-30 | 2011-12-07 | 中国电子科技集团公司第四十九研究所 | Oil-filled temperature pressure combined sensor |
| US20160349128A1 (en) * | 2015-05-26 | 2016-12-01 | Wika Alexander Wiegand Se & Co. Kg | Diaphragm pressure gauge with monitoring function |
| CN208091623U (en) * | 2018-01-29 | 2018-11-13 | 北京布莱迪仪器仪表有限公司 | A kind of double diaphragm leak protection diaphragms |
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