CN205981306U - Capacitance probe of whirling flow sensor - Google Patents
Capacitance probe of whirling flow sensor Download PDFInfo
- Publication number
- CN205981306U CN205981306U CN201620972699.2U CN201620972699U CN205981306U CN 205981306 U CN205981306 U CN 205981306U CN 201620972699 U CN201620972699 U CN 201620972699U CN 205981306 U CN205981306 U CN 205981306U
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- fixed electrode
- casing
- porcelain core
- electrode
- solid fixed
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Abstract
Capacitance probe of whirling flow sensor relates to a capacitance probe of whirling flow sensor who is used for surveying the interior liquid of buret way, gas medium flow. Mainly be poor for solving current capacitance probe of whirling flow sensor reliability, the problem that life is short designs. It includes the casing, and the casing is split into the casing by the flange has the vortex street tablet with lower casing, lower casing bottom, and weld on the flange at lower casing top, cavity in the upper and lower casing is linked together, upward has the vacuum technology hole on the casing, and it becomes a whole with the welding of electrode sintered body to go up the casing top, be equipped with porcelain core in the electrode sintered body, solid fixed electrode in left side and the solid fixed electrode in right side fix on porcelain core, solid fixed electrode lead -out wire on the left of the solid fixed electrode in left side connects, and the solid fixed electrode in right side connects the solid fixed electrode lead -out wire in right side, and left and right lead -out wire is followed the porcelain core top and is drawn forth, and porcelain core inserts in the cavity of casing. The advantage is the good reliability, long service life.
Description
Technical field：
This utility model is related to a kind of electricity for measuring liquid in pipeline, the vortex flow sensors of gas medium flow
Appearance formula is popped one's head in.
Background technology：
In existing measurement pipeline, liquid, the capacitance probe case top of the vortex flow sensors of gas medium flow are used
High-temp glue seals, and it is disadvantageous in that：There are air and moisture content, in the case of a high temperature, Yi Fa between housing and fixed electrode
Raw electric leakage and dielectric constant change, and then affect the detection of electric capacity；High-temp glue is severe in high temperature change, vibrations, humidity etc.
Occurred using meeting aging under environment, easily break down, poor reliability, reduces service life.
Content of the invention：
Technical problem to be solved in the utility model is to provide a kind of complete to weld vacuum structure it is ensured that long-term, reliable, steady
The vortex flow sensors capacitance probe of fixed work.
Above-mentioned purpose is realized in：It includes housing, and housing is split upper and lower two parts by flange, upper part be referred to as on
Housing, lower part is referred to as lower house, and vortex street tablet is arranged at lower house bottom, and the cylindrical portions on vortex street tablet are housing
A part, is also the moving electrode of detection electric capacity, lower house welded top is on flange；In cavity in upper casing body and lower casing body
Cavity is connected, and upper shell is provided with vacuum technology hole, and electrode sintered body is arranged at upper shell top, and upper shell top is sintered with electrode
Body is welded into an entirety；Electrode sintering is provided with porcelain core in vivo, and left side fixed electrode and right side fixed electrode are all fixed on porcelain
On core, left side fixed electrode connects left side fixed electrode lead-out wire, and right side fixed electrode connects right side fixed electrode lead-out wire,
Left and right lead-out wire is inserted in the cavity of housing from porcelain core Base top contact, porcelain core.Described porcelain core and housing（Moving electrode) inwall it
Between have very little and uniform gap.
The utility model has the advantages that：
1st, electrode body portion adopts ceramic/metal sintering process, is vacuum and welding structure provides guarantee.
2nd, the metal shell of electrode sintered body and upper shell are integrally welded, make sensor construction intensity improve it is ensured that
Air-tightness, makes sensor full lifetime fault-free.
3rd, pass through upper casing body side surface vacuum technology hole, to the gap evacuation between porcelain core and upper and lower casing, then will be true
Empty blocking technological holes.Thus ensure that detection electric capacity is not affected by moisture content, the electric leakage of air or change in dielectric constant, improve sensing
The stability of device and reliability.
Brief description：
Fig. 1 is structural representation of the present utility model.
Specific embodiment：
With reference to Fig. 1, it includes housing, and housing is split upper and lower two parts by flange 3, and upper part is referred to as upper shell 1, lower part
Referred to as lower house 2, vortex street tablet 4 is arranged at lower house bottom, and the cylindrical portions on vortex street tablet are a part for housing,
It is the moving electrode of detection electric capacity, lower house welded top is on flange；Cavity in upper casing body is connected with the cavity in lower casing body
Logical, upper shell is provided with vacuum technology hole 5, and electrode sintered body 6 is arranged at upper shell top, and upper shell top is welded with electrode sintered body
Become an entirety；Electrode sintering is provided with porcelain core 7 in vivo, and left side fixed electrode 8 and right side fixed electrode 9 are all fixed on porcelain core
On, left side fixed electrode connects left side fixed electrode lead-out wire 10, and right side fixed electrode connects right side fixed electrode lead-out wire 11,
Left and right lead-out wire is inserted in the cavity of housing from porcelain core Base top contact, porcelain core.Described porcelain core and housing（Moving electrode) inwall it
Between have very little and uniform gap.
Claims (2)
1. the capacitance probe of vortex flow sensors, including housing, housing is by flange（3）Split upper and lower two parts, upper part
Referred to as upper shell（1）, lower part is referred to as lower house（2）, vortex street tablet is arranged at lower house bottom（4）, lower house welded top exists
On flange；It is characterized in that：Cavity in upper casing body is connected with the cavity in lower casing body, and upper shell is provided with vacuum technology hole
（5）, electrode sintered body is arranged at upper shell top（6）, upper shell top and electrode sintered body are welded into an entirety；Electrode sinters
It is provided with porcelain core in vivo（7）, left side fixed electrode（8）With right side fixed electrode（9）All it is fixed on porcelain core, left side fixed electrode is even
Connect left side fixed electrode lead-out wire（10）, right side fixed electrode connection right side fixed electrode lead-out wire（11）, left and right lead-out wire from
Porcelain core Base top contact, porcelain core is inserted in the cavity of housing.
2., according to the capacitance probe of the vortex flow sensors described in claim 1, it is characterized in that：In described porcelain core and housing
There are very little and uniform gap between wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620972699.2U CN205981306U (en) | 2016-08-30 | 2016-08-30 | Capacitance probe of whirling flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620972699.2U CN205981306U (en) | 2016-08-30 | 2016-08-30 | Capacitance probe of whirling flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205981306U true CN205981306U (en) | 2017-02-22 |
Family
ID=58038195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620972699.2U Expired - Fee Related CN205981306U (en) | 2016-08-30 | 2016-08-30 | Capacitance probe of whirling flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205981306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401908A (en) * | 2020-12-02 | 2021-02-26 | 中国人民解放军海军特色医学中心 | Fatigue monitoring device, fatigue monitoring method, computing equipment and storage medium |
| DE102022131694A1 (en) | 2022-11-30 | 2024-06-06 | Endress+Hauser Flowtec Ag | Capacitive sensor assembly for a field device and field device |
-
2016
- 2016-08-30 CN CN201620972699.2U patent/CN205981306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401908A (en) * | 2020-12-02 | 2021-02-26 | 中国人民解放军海军特色医学中心 | Fatigue monitoring device, fatigue monitoring method, computing equipment and storage medium |
| DE102022131694A1 (en) | 2022-11-30 | 2024-06-06 | Endress+Hauser Flowtec Ag | Capacitive sensor assembly for a field device and field device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |