CN2835970Y - Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter - Google Patents
Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter Download PDFInfo
- Publication number
- CN2835970Y CN2835970Y CN 200520045755 CN200520045755U CN2835970Y CN 2835970 Y CN2835970 Y CN 2835970Y CN 200520045755 CN200520045755 CN 200520045755 CN 200520045755 U CN200520045755 U CN 200520045755U CN 2835970 Y CN2835970 Y CN 2835970Y
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- Prior art keywords
- insulator
- pressure
- differential pressure
- hermetically
- pressure transmitter
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- Expired - Fee Related
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Abstract
The hermetically-sealed construction of nuclear safe level capacitance differential pressure/pressure transmitter measurement parts extension line, in the lead fairlead of meter case, be equipped with insulator, insulator end and the periphery welding of shell top, between insulator and the binding post by glass capsulation, epoxy sealing in the shell cavity, double seal is isolated measurement component inner lead and outside lead effectively, has good conduction simultaneously again.The utility model is simple in structure, sealingly secure is reliable, be applicable to harsh conditions occasions such as nuclear power station, can stand the influence of steam high temperature (about 160 ℃), high pressure (about 0.55MPa) special environment condition, thereby make instrument have good security and reliability.
Description
Technical field
The utility model belongs to the automation instrument technology field, relates in particular to the improvement of instrument measurement parts extension line hermetically-sealed construction.
Background technology
At present, the hermetically-sealed construction of general capacitance transducer measurement component extension line adopts rubber seal to seal mostly, though this kind structure technology is convenient, simple in structure, only is applicable to the place of general atmosphere protection against the tide.Nuclear safe level capacitance differential pressure/pressure unit is owing to use under saturated vapour high temperature (about 160 ℃), high pressure (about the 0.55MPa) environmental baseline in nuclear power plant containment shell, said structure is under nuclear power station severe rugged environment condition, be difficult to accomplish effective sealing, steam enters the instrument measurement parts, will cause the instrument can't operate as normal.
Summary of the invention
The purpose of this utility model provides and a kind ofly is applicable to High Temperature High Pressure particular surroundings in the nuclear power plant containment shell, can prevent effectively that high temperature (160 ℃), high pressure (0.55MPa) steam from entering instrument, simple in structure, safe and reliable nuclear safe level capacitance differential pressure/pressure transmitter measurement parts hermetically-sealed construction.
For achieving the above object, the technical scheme that is adopted is: the hermetically-sealed construction of nuclear safe level capacitance differential pressure/pressure transmitter measurement parts, comprise meter case and draw bundle conductor, be equipped with insulator in the lead fairlead of shell, be equipped with soldered between the top of described shell and the end of described insulator, be equipped with binding post in the hole of described insulator, be equipped with sealant between binding post and the insulator, be filled with the sealing convered structure in the cavity that surrounds between described shell and the insulator.
Described sealant is a glass, and the sealing convered structure is the epoxy resin that is mixed with hardening agent.
Weld between bundle conductor and the binding post and fixedly connected.
The beneficial effects of the utility model are: insulator end and the periphery welding of shell top, between insulator and the binding post by glass capsulation, epoxy sealing in the shell cavity, double seal are isolated measurement component inner lead and outside lead effectively, have good conduction simultaneously again.The utility model is simple in structure, sealingly secure is reliable, be applicable to harsh conditions occasions such as nuclear power station, can stand the influence of steam high temperature (about 160 ℃), high pressure (about 0.55MPa) special environment condition, thereby make instrument have good security and reliability.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 structural representation of the present utility model.
Among the figure, the 1-soldered; The 2-insulator; The 3-sealant; 4-seals convered structure; The 5-binding post; The 6-bundle conductor; 7-transmitter shell.
Embodiment
The hermetically-sealed construction of nuclear safe level capacitance differential pressure/pressure transmitter measurement parts, comprise meter case 7 and draw bundle conductor 6, its characteristics are to be equipped with insulator 2 in the lead fairlead of shell 7, be equipped with soldered 1 between the end of the top of described shell 7 and described insulator 2, be equipped with binding post 5 in the hole of described insulator 2, be equipped with sealant 3 between binding post 5 and the insulator 2, be filled with sealing convered structure 4 in the cavity that surrounds between described shell 7 and the insulator 2.
Described sealant 3 is a glass, the high-temperature fusion sealing.Sealing convered structure 4 is the epoxy resin that is mixed with hardening agent.
Weld between bundle conductor 6 and the binding post 5 and fixedly connected.
The utility model double seal method can be isolated measurement component inner lead and outside lead effectively, has simultaneously good conduction again, simple in structure, sealingly secure is reliable, use in harsh conditions occasions such as nuclear power stations, can stand the influence of steam high temperature (about 160 ℃), high pressure (about 0.55MPa), have good security and reliability.
Claims (4)
1. the hermetically-sealed construction of nuclear safe level capacitance differential pressure/pressure transmitter measurement parts, comprise meter case (7) and draw bundle conductor (6), it is characterized in that being equipped with insulator (2) in the lead fairlead of shell (7), be equipped with soldered (1) between the end of the top of described shell (7) and described insulator (2), be equipped with binding post (5) in the hole of described insulator (2), be equipped with sealant (3) between binding post (5) and the insulator (2), be filled with sealing convered structure (4) in the cavity that surrounds between described shell (7) and the insulator (2).
2. according to the hermetically-sealed construction of the described nuclear safe level capacitance differential pressure of claim 1/pressure transmitter measurement parts, it is characterized in that described sealant (3) is a glass.
3. according to the hermetically-sealed construction of the described nuclear safe level capacitance differential pressure of claim 1/pressure transmitter measurement parts, it is characterized in that sealing convered structure (4) is the epoxy resin that is mixed with hardening agent.
4. according to the hermetically-sealed construction of the described nuclear safe level capacitance differential pressure of claim 1/pressure transmitter measurement parts, it is characterized in that welding between bundle conductor (6) and the binding post (5) and fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045755 CN2835970Y (en) | 2005-10-20 | 2005-10-20 | Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045755 CN2835970Y (en) | 2005-10-20 | 2005-10-20 | Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835970Y true CN2835970Y (en) | 2006-11-08 |
Family
ID=37300623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045755 Expired - Fee Related CN2835970Y (en) | 2005-10-20 | 2005-10-20 | Sealing structure for measurement component of nuclear safety level capacitive differential pressure/pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835970Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806649A (en) * | 2010-03-08 | 2010-08-18 | 芜湖通和汽车管路系统有限公司 | Ceramic pressure transmitter and manufacturing method thereof |
| CN103743520A (en) * | 2013-01-30 | 2014-04-23 | 上海洁晟环保科技有限公司 | Pressure sensing device applied to high voltage environment |
| CN103808347A (en) * | 2014-02-28 | 2014-05-21 | 广州中国科学院先进技术研究所 | Sealing device and method of lead of sealing metal case |
| CN103982709A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院武汉岩土力学研究所 | Multi-wire lead-out device of high-pressure container |
| 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 |
| WO2019134430A1 (en) * | 2018-01-03 | 2019-07-11 | 成都瑞帆智达科技有限公司 | Lead fixing structure, resonant sensor, and measuring device |
-
2005
- 2005-10-20 CN CN 200520045755 patent/CN2835970Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806649A (en) * | 2010-03-08 | 2010-08-18 | 芜湖通和汽车管路系统有限公司 | Ceramic pressure transmitter and manufacturing method thereof |
| CN103743520A (en) * | 2013-01-30 | 2014-04-23 | 上海洁晟环保科技有限公司 | Pressure sensing device applied to high voltage environment |
| CN103808347A (en) * | 2014-02-28 | 2014-05-21 | 广州中国科学院先进技术研究所 | Sealing device and method of lead of sealing metal case |
| CN103982709A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院武汉岩土力学研究所 | Multi-wire lead-out device of high-pressure container |
| WO2019134430A1 (en) * | 2018-01-03 | 2019-07-11 | 成都瑞帆智达科技有限公司 | Lead fixing structure, resonant sensor, and measuring device |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061108 Termination date: 20101020 |