CN209820525U - Sulfur hexafluoride micro-water and density on-line monitoring device - Google Patents
Sulfur hexafluoride micro-water and density on-line monitoring device Download PDFInfo
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- CN209820525U CN209820525U CN201920600507.9U CN201920600507U CN209820525U CN 209820525 U CN209820525 U CN 209820525U CN 201920600507 U CN201920600507 U CN 201920600507U CN 209820525 U CN209820525 U CN 209820525U
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Abstract
The utility model discloses a little water of sulfur hexafluoride and density on-line monitoring device is including connecting, detection mechanism and pipe. Detection mechanism includes the casing, the air inlet fan, sensor unit and circuit board, sensor unit includes sensor seat, pressure sensor, temperature sensor and little water humidity transducer all are fixed in sensor seat below, sensor seat side is provided with the fixed seal circle, pressure sensor, temperature sensor and little water humidity transducer's connecting wire is connected and is filled with sealed glue through the clearance between fixed seal circle and the shells inner wall with the circuit board in the clearance, the circuit board is fixed in fixed intracavity through the fixed seal circle, be provided with the pull ring on the circuit board, fixed chamber top is provided with sealed lid. The utility model adopts the above structure a little water of sulfur hexafluoride and density on-line monitoring device, simple structure, it is sealed reliable, easy to assemble, overhaul and change circuit board and sensor.
Description
Technical Field
The utility model belongs to the technical field of the electrical detection and specifically relates to a little water of sulfur hexafluoride and density on-line monitoring device is related to.
Background
In an electrical apparatus, a high-voltage switchgear containing SF6 insulating gas may break the sealing property of the apparatus due to manufacturing processes, equipment aging, maintenance operation errors, and the like, and thus SF6 gas may leak. This can lead to a reduction in the insulation of the high-voltage switchgear and even to a serious accident of equipment burnout. Meanwhile, SF6 is decomposed after long-term high-pressure operation, and the decomposition products react with moisture in the SF6 to generate toxic and harmful products, so that the electrical performance of SF6 is affected, and the personal safety of personnel is threatened once leakage occurs. At present, adopt little water density appearance to carry out on-line measuring to SF6 gas, but current check out test set adopts the integral type structure, and the fixed structure is inconvenient to be overhauld and is changed, in case circuit or sensor damage need change the integrated device, has improved the equipment maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a little water of sulfur hexafluoride and density on-line monitoring device, simple structure, it is sealed reliable, easy to assemble, overhaul and change circuit board and sensor.
In order to achieve the above object, the utility model provides a sulfur hexafluoride micro-water and density online monitoring device, which comprises a connector, a detection mechanism and a conduit, wherein a high-voltage switch container is connected with one end of the connector, the other end of the connector is connected with the air inlet end of the detection mechanism, the air outlet end of the detection mechanism is communicated with the high-voltage switch container through the conduit, the detection mechanism comprises a shell, an air inlet fan, a sensor unit and a circuit board, the shell is divided into a detection cavity and a fixed cavity, the air inlet fan is fixed in the air inlet end of the shell, the sensor unit fixed in the detection cavity comprises a sensor seat, a pressure sensor, a temperature sensor and a micro-water humidity sensor, the pressure sensor, the temperature sensor and the micro-water humidity sensor are all fixed below the sensor seat, the sensor is characterized in that a fixed sealing ring is arranged in a groove in the side face of the sensor seat, connecting wires of the pressure sensor, the temperature sensor and the micro-water humidity sensor are connected with the circuit board through a gap between the fixed sealing ring and the inner wall of the shell, a sealing glue is filled in the gap between the fixed sealing ring and the inner wall of the shell, the sensor seat is fixed below the fixed cavity, the circuit board is fixed in the fixed cavity through the fixed sealing ring, a pull ring is arranged on the circuit board, and a sealing cover is arranged at the top end of the fixed cavity.
Preferably, a fixing groove used for clamping the circuit board is formed in the inner side of the fixing rubber ring.
Preferably, a fastening nut is fixed at the joint of the joint and the detection cavity, a first sealing groove is formed in the top end of the outer side of the detection cavity, and a first sealing ring is arranged in the first sealing groove.
Preferably, a wire outlet sleeve is arranged in the middle of the sealing cover, sealant is filled in the wire outlet sleeve, and the signal wire penetrates through the wire outlet sleeve to be connected with the monitoring host.
Preferably, the sealing cover is in threaded connection with the fixed cavity, a second sealing groove is formed in the outer side of the upper end of the fixed cavity, a second sealing ring is arranged in the second sealing groove, and a third sealing ring is arranged at the top of the fixed cavity.
Therefore, the utility model adopts the above structure a little water of sulfur hexafluoride and density on-line monitoring device, simple structure, it is sealed reliable, fixed chamber top is provided with sealed lid, the circuit board is fixed in through fixed rubber ring fixed intracavity, the sensor seat is fixed in fixed chamber below adopts detachable construction, easy to assemble, overhauls and change circuit board and sensor.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of a sulfur hexafluoride micro-water and density on-line monitoring device of the present invention;
fig. 2 is a partial cross-sectional view of the fixing rubber ring of the present invention.
Reference numerals
1. A joint; 2. fastening a nut; 3. a housing; 31. a detection chamber; 311. a first seal ring; 32. a fixed cavity; 321. a second seal ring; 322. a third seal ring; 33. a sealing cover; 331. a wire outlet sleeve; 4. an air intake fan; 5. a micro-water humidity sensor; 6. a pressure sensor; 7. a temperature sensor; 8. a sensor seat; 81. fixing the sealing ring; 9. a circuit board; 91. fixing a rubber ring; 92. a pull ring; 10. a conduit.
Detailed Description
Examples
Fig. 1 is the utility model relates to a little water of sulfur hexafluoride and density on-line monitoring device schematic structure, fig. 2 is the utility model discloses fixed rubber ring local cross-section, as shown in fig. 1-2, a little water of sulfur hexafluoride and density on-line monitoring device is including connecting 1, detection mechanism and pipe 10, the high-voltage switch container is connected with 1 one end of joint, the other end that connects 1 is connected with detection mechanism's inlet end, detection mechanism's the end of giving vent to anger is linked together through pipe 10 and high-voltage switch container, it is fixed with fastening nut 2 with detection chamber 31 junction to connect 1, it is equipped with first sealed recess to detect chamber 31 outside top, be provided with first sealing washer 311 in the first sealed recess, guarantee the leakproofness of junction. The detection mechanism includes a housing 3, an intake fan 4, a sensor unit, and a circuit board 9. The housing 1 is divided into a detection chamber 31 and a fixed chamber 32, and the air intake fan 4 is fixed inside the air intake end of the detection chamber 31, so that SF6 gas smoothly enters the detection chamber 31. The sensor unit fixed in the detection cavity 31 comprises a sensor seat 8, a pressure sensor 6, a temperature sensor 7 and a micro-water humidity sensor 5, the pressure sensor 6, the temperature sensor 7 and the micro-water humidity sensor 5 are all fixed below the sensor seat 8, a fixing sealing ring 81 is arranged in a groove on the side surface of the sensor seat 8, a connecting wire of the pressure sensor 6, the temperature sensor 7 and the micro-water humidity sensor 5 is connected with the circuit board 9 through a gap between the fixing sealing ring 81 and the inner wall of the shell 1, and a sealing glue is filled in the gap between the fixing sealing ring 81 and the inner wall of the shell 1, so that SF6 gas cannot enter the fixing cavity 32 from the detection cavity 31, the detection part is separated from the circuit part, the circuit board cannot be influenced by the detection gas, and the service life of the circuit board. The sensor seat 8 is fixed below the fixed cavity 32, the circuit board 9 is fixed in the fixed cavity 32 through the fixed rubber ring 91, a fixed groove used for clamping the circuit board 9 is arranged on the inner side of the fixed rubber ring 91, a pull ring 92 is arranged on the circuit board 9, and the pull ring 92 is in threaded connection or welded with the circuit board 9. When the circuit board 9 is sleeved with the fixed rubber ring 91, the circuit board 9 is pushed downwards by the handheld pull ring 92, and the pushing is stopped when the circuit board reaches a proper position, at the moment, the fixed rubber ring 91 cannot continue to move downwards due to the friction effect of the fixed rubber ring and the inner wall of the fixed cavity 32, so that the circuit board 9 is fixed in the fixed cavity 32, and the circuit board 9 is pulled upwards by the pull ring 92 when being detached and maintained. The top end of the fixed cavity 32 is provided with a sealing cover 33. The middle part of the sealing cover 33 is provided with a wire outlet sleeve 331, the wire outlet sleeve 331 is filled with sealant to ensure the sealing performance, and a signal wire passes through the wire outlet sleeve 331 to be connected with a monitoring host. The outer wall threaded connection of sealed lid 33 and fixed chamber 32, the fixed chamber 32 upper end outside is provided with the sealed recess of second, is provided with second sealing washer 321 in the sealed recess of second, and fixed chamber 32 top is provided with third sealing washer 322, and it is removable to have realized fixed chamber 32 top, and easy to assemble, maintenance and change circuit board 9 and sensor have guaranteed holistic leakproofness simultaneously.
Therefore, the utility model adopts the above structure a little water of sulfur hexafluoride and density on-line monitoring device, simple structure, it is sealed reliable, fixed chamber top is provided with sealed lid, and the circuit board is fixed in fixed intracavity through fixed rubber ring, and sensor seat is fixed in fixed chamber below, adopts detachable construction, easy to assemble, overhauls and change circuit board and sensor.
The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a little water of sulfur hexafluoride and density on-line monitoring device, includes and connects, detection mechanism and pipe, the high-pressure switch container with connect one end to be connected, the other end that connects with detection mechanism's inlet end is connected, detection mechanism's the end of giving vent to anger through the pipe with the high-pressure switch container is linked together, its characterized in that: the detection mechanism comprises a shell, an air inlet fan, a sensor unit and a circuit board, wherein the shell is divided into a detection cavity and a fixed cavity, the air inlet fan is fixed in the air inlet end of the shell, the sensor unit fixed in the detection cavity comprises a sensor seat, a pressure sensor, a temperature sensor and a micro-moisture sensor, the pressure sensor, the temperature sensor and the micro-moisture sensor are all fixed below the sensor seat, a fixed sealing ring is arranged in a groove on the side surface of the sensor seat, a connecting wire of the pressure sensor, the temperature sensor and the micro-moisture sensor is connected with the circuit board through a gap between the fixed sealing ring and the inner wall of the shell, a sealing glue is filled in the gap between the fixed sealing ring and the inner wall of the shell, the sensor seat is fixed below the fixed cavity, the circuit board is fixed in the fixed cavity through a fixed rubber ring, a pull ring is arranged on the circuit board, and a sealing cover is arranged at the top end of the fixed cavity.
2. The sulfur hexafluoride micro-water and density online monitoring device according to claim 1, wherein: and a fixing groove used for clamping the circuit board is arranged on the inner side of the fixing rubber ring.
3. The sulfur hexafluoride micro-water and density online monitoring device according to claim 2, wherein: the joint with it is fixed with fastening nut to detect the chamber junction, it is equipped with first sealed recess to detect chamber outside top, be provided with first sealing washer in the first sealed recess.
4. The sulfur hexafluoride micro-water and density online monitoring device according to claim 3, wherein: and a wire outlet sleeve is arranged in the middle of the sealing cover, sealant is filled in the wire outlet sleeve, and a signal wire penetrates through the wire outlet sleeve to be connected with the monitoring host.
5. The sulfur hexafluoride micro-water and density online monitoring device according to claim 4, wherein: the sealing cover is in threaded connection with the fixed cavity, a second sealing groove is formed in the outer side of the upper end of the fixed cavity, a second sealing ring is arranged in the second sealing groove, and a third sealing ring is arranged at the top of the fixed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600507.9U CN209820525U (en) | 2019-04-28 | 2019-04-28 | Sulfur hexafluoride micro-water and density on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600507.9U CN209820525U (en) | 2019-04-28 | 2019-04-28 | Sulfur hexafluoride micro-water and density on-line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820525U true CN209820525U (en) | 2019-12-20 |
Family
ID=68882046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920600507.9U Expired - Fee Related CN209820525U (en) | 2019-04-28 | 2019-04-28 | Sulfur hexafluoride micro-water and density on-line monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209820525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306449A (en) * | 2019-12-24 | 2020-06-19 | 国网新疆电力有限公司吐鲁番供电公司 | Micro-water monitoring and processing system for GIS (gas insulated switchgear) transformer substation |
-
2019
- 2019-04-28 CN CN201920600507.9U patent/CN209820525U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306449A (en) * | 2019-12-24 | 2020-06-19 | 国网新疆电力有限公司吐鲁番供电公司 | Micro-water monitoring and processing system for GIS (gas insulated switchgear) transformer substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20210428 |