CN212658376U - Connecting device for combined electrical apparatus and pressure sensor - Google Patents
Connecting device for combined electrical apparatus and pressure sensor Download PDFInfo
- Publication number
- CN212658376U CN212658376U CN202021300742.3U CN202021300742U CN212658376U CN 212658376 U CN212658376 U CN 212658376U CN 202021300742 U CN202021300742 U CN 202021300742U CN 212658376 U CN212658376 U CN 212658376U
- Authority
- CN
- China
- Prior art keywords
- gas
- sensor
- interface
- standard
- connecting device
- 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.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A connecting device for a combined electrical apparatus and a pressure sensor belongs to the field of measurement. The gas valve comprises a conversion joint component, a gas valve and a sensor expansion module which are connected in sequence; the adapter component comprises a loose joint nut and a gas interface which are sleeved; the thread pitch of the internal thread structure on the inner wall of the loose joint nut and the thread pitch of the external thread structure of the gas port of the GIS body SF6 are both in non-standard specifications; the sensor expansion module is of a rectangular block structure; a sensor chamber is arranged in the sensor expansion module; the inlet end of the sensor cavity and the outlet end of the gas valve are correspondingly and fixedly connected into a whole; at least one standard interface is arranged along the longitudinal axis direction or the radial direction of the sensor cavity; the standard interface is correspondingly and fixedly connected with the SF6 sensor; the gas path of the GIS body SF6 gas port, the loose joint nut, the gas interface, the gas valve, the sensor cavity and each standard interface is communicated. The device can greatly improve the automation degree of the SF6 gas management work on site.
Description
Technical Field
The utility model belongs to the measuring device field especially relates to a connecting device for combined electrical apparatus and pressure sensor.
Background
Sulfur hexafluoride closed type combined electrical appliances (referred to as combined electrical appliances for short), called "Gas Insulated Switchgear" (Gas Insulated Switchgear), are commonly referred to as GIS for short in the industry.
The SF6 combined electrical apparatus uses SF6 gas as the insulating and arc extinguishing medium, while SF6 gas is easily affected by moisture, after the trace moisture content (for short, micro-water) is increased, the insulating and arc extinguishing performance of the SF6 gas can be rapidly reduced, and the influence on the safe operation of the equipment is great.
The work on SF6 gas management is therefore very important. In the live operation process of the combined electrical apparatus, the gas management is good, and the equipment operation is reliable.
The existing gas management work mainly aims at periodically monitoring the pressure of SF6 gas in the combined electrical equipment, and when the pressure of the SF6 gas is kept at a stable value, the SF6 gas in the equipment has no leakage; in this state, the pressure and the micro-water content of the SF6 gas are detected regularly.
If the pressure value of the SF6 gas in the equipment shows a certain descending rate, the continuous leakage phenomenon of the SF6 gas in the equipment is indicated, the monitoring strength and frequency must be strengthened after the continuous loss, and once the pressure of the SF6 gas is smaller than the set value, the supplement of the SF6 gas is considered.
If the pressure value of the SF6 gas is rapidly reduced, the combined electrical equipment is considered to be out of the live operation, emergency maintenance is carried out, and the reason and the leakage point of the SF6 gas leakage are searched.
Because most SF6 combined electrical apparatus in the transformer substation administered by the applicant is imported equipment, the automatic monitoring technical level is lower based on the design and manufacture, the collection interface of SF6 gas pressure is mostly in non-standard specification, and it is difficult to find a connecting device corresponding to the standard in China, so the SF6 gas monitoring of the combined electrical apparatus at present only depends on manual checking and reading of the SF6 gas detection pressure gauge value on site for recording and monitoring, the SF6 gas pressure value is monitored manually, and no corresponding product can measure the SF6 gas pressure value on line or remotely transmit the pressure value data at present.
With the continuous development of automatic control technology, the intellectualization of the substation has become a big trend. The automation of SF6 gas management operations could be improved if the onsite SF6 gas pressure data collection could be converted into electrical data signals on site.
Since the non-standard metal part of the SF6 gas pressure acquisition interface of the GIS equipment of the transformer substation governed by the applicant does not have a corresponding connection-conversion device available on the market, how to solve the problem of connection between the combined electrical apparatus and the commercially available pressure sensor is called as a problem to be solved urgently in actual work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a connecting device for combined electrical apparatus and pressure sensor is provided. The non-standard SF6 gas acquisition port (SF 6 gas port for short) on the GIS body is converted, and the standard interfaces of a plurality of detection sensors are arranged, so that the conventional combined electrical equipment can be smoothly butted with various detection sensors sold in the market, the automation degree of field SF6 gas management work can be greatly improved, and the SF6 gas online monitoring system of the combined electrical equipment is facilitated to be constructed.
The technical scheme of the utility model is that: the connecting device for the combined electrical appliance and the pressure sensor is characterized in that:
the connecting device comprises a conversion joint assembly, a gas valve and a sensor expansion module which are sequentially connected;
the adapter component comprises a loose joint nut and a gas interface which are sleeved;
the gas interface is a tubular structure with an external convex annular structure at the gas inlet end;
the gas interface is provided with an air inlet end with an external convex annular structure and rotatably penetrates through the loose joint nut in a sleeved mode;
an internal thread structure is arranged on the inner wall of the loose joint nut;
an external thread structure is arranged at the outlet end of the SF6 gas interface of the GIS body;
the loose joint nut sleeved on the gas inlet end of the gas interface and the SF6 gas port of the GIS body are screwed and fixed into a whole;
the thread pitch of the internal thread structure on the inner wall of the loose joint nut is the same as the thread pitch of the external thread structure of the SF6 gas port of the GIS body, and the thread pitches are in non-standard specifications;
the inlet end of the gas valve is provided with an internal thread section structure, and the outlet end of the gas valve is provided with an external thread section structure; a spanner is arranged outside the gas valve;
the sensor expansion module body is of a hollow rectangular block structure;
a sensor chamber is arranged in the body of the sensor expansion module;
the inlet end of the sensor cavity and the outlet end of the gas valve are correspondingly and fixedly connected into a whole;
at least one standard interface is arranged along the longitudinal axis direction or the radial direction of the sensor cavity;
the standard interface is fixedly connected with an SF6 sensor correspondingly;
an expander sealing element is arranged at the vacant standard interface;
the inlet end of the sensor cavity and each standard interface are respectively and correspondingly provided with an internal thread section structure;
the gas path among the gas port of the GIS body SF6, the loose joint nut, the gas port, the gas valve, the sensor cavity and each standard port is communicated and fixedly connected into a whole;
the thread pitch of each internal thread section structure or external thread section structure is in national standard.
Specifically, the gas valve is a ball valve.
Further, at least one standard interface is respectively arranged in the longitudinal axis direction and the radial direction of the sensor cavity.
Further, in the longitudinal axis direction of the sensor chamber, two or more standard interfaces are provided.
Specifically, the two or more standard interfaces are respectively and vertically arranged with the longitudinal axis of the sensor cavity.
Further, the longitudinal axes of the two or more standard interfaces are arranged in parallel.
Further, the SF6 sensor at least comprises an SF6 gas sensor, an SF6 temperature sensor or an SF6 micro-water sensor.
Specifically, sealing rings are arranged between the loose joint nut and an SF6 gas port of the GIS body, between the standard interface and an SF6 sensor and between the standard interface and an expander sealing element.
Furthermore, the sealing ring is a butadiene rubber sealing ring.
Furthermore, an internal thread section structure is arranged at the inlet end of the gas valve, and an external thread section structure is arranged at the outlet end of the gas valve; a wrench is arranged outside the gas valve.
Compared with the prior art, the utility model has the advantages that:
1. according to the technical scheme, the conversion between the non-standard connection structure of the non-standard gas port on the GIS body and the national standard connection structure is realized by arranging the conversion joint assembly;
2. the standard interface with a plurality of detection sensors is provided, so that the existing combined electrical equipment can be smoothly butted with various detection sensors sold in the market, and the automation degree of the field SF6 gas management work is greatly improved;
3. through the arrangement of the loose joint nut structure, the connecting device can be conveniently installed and connected with a non-standard gas collecting port on the GIS body;
4. the whole connecting device has the advantages of simple structure, convenient processing and manufacturing, low cost for implementing transformation, small workload of field replacement and maintenance and easy acceptance by use units.
Drawings
Fig. 1 is a schematic structural view of the connecting device of the present invention;
fig. 2 is a schematic structural diagram of the gas interface of the present invention;
fig. 3 is a schematic structural diagram of the gas valve of the present invention.
In the figure, 1 is an SF6 gas port of a body, 1-1 is an external thread structure of an SF6 gas port, 2 is a union nut, 2-1 is an internal thread structure of the union nut, 3 is a gas port, 3-1 is an external thread of the gas port, 3-4 is an external raised annular structure, 4 is a gas valve, 4-1 is an external thread section at the outlet end of the gas valve, 4-2 is an internal thread section at the inlet end of the gas valve, 5 is a sensor expansion module, 6 is a standard port, 6-1 is an internal thread section of the standard port, 7 is a sensor chamber, and 8 is an expander sealing element.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
In fig. 1, the technical solution of the present invention provides a connecting device for a combined electrical apparatus and a pressure sensor, and the invention is characterized in that:
the connecting device comprises a conversion joint assembly, a gas valve 4 and a sensor expansion module 5 which are connected in sequence.
The adapter component comprises a loose joint nut 2 and an air interface 3 which are sleeved; the loose joint nut is correspondingly connected with an SF6 gas port 1 of the GIS body; the gas interface is a tubular structure with an external convex annular structure at the gas inlet end.
The air interface is provided with an air inlet end with an external convex annular structure and rotatably penetrates through the loose joint nut in a sleeved mode.
An internal thread structure 2-1 is arranged on the inner wall of the loose joint nut; an external thread structure 1-1 is arranged at the outlet end of an SF6 gas interface 1 of the GIS body; the loose joint nut is screwed and fixed with the SF6 gas port of the GIS body into a whole; the thread pitch of the internal thread structure on the inner wall of the loose joint nut is the same as the thread pitch of the external thread structure of the gas port of the GIS body SF6, and the thread pitch is in a non-standard specification.
As shown in fig. 1, the sensor expansion module body is a hollow rectangular block structure; in the sensor expansion module 5, a sensor chamber 7 is provided; the inlet end of the sensor cavity is fixedly connected with the outlet end of the gas valve correspondingly into a whole.
At least one standard interface 6 is arranged along the longitudinal axis direction or the radial direction of the sensor cavity; and internal thread section structures are respectively and correspondingly arranged at the inlet end of the sensor cavity and each standard interface.
The loose joint nut, the gas interface, the gas valve, the sensor cavity and each standard interface are communicated with each other through gas paths and fixedly connected into a whole.
In the technical scheme, the thread pitch of the internal thread structure on the inner wall of the loose joint nut is the same as the thread pitch of the external thread structure of the SF6 gas port of the GIS body, and the thread pitches are in non-standard specifications; the thread pitch of the other internal thread section structures or the external thread section structures is in the national standard.
The gas interface is fixedly connected with the inlet end of the gas valve; the outlet end of the gas valve is fixedly connected with the inlet section of the sensor cavity; and at least one standard interface is respectively and correspondingly fixedly connected with an SF6 sensor.
The SF6 sensor at least comprises an SF6 gas sensor, an SF6 temperature sensor or an SF6 micro-water sensor.
At the empty standard interface, an expander seal 8 is provided.
Sealing rings are respectively arranged between the loose joint nut and an SF6 gas port of the GIS body, between the standard interface and an SF6 sensor and between the standard interface and an expander sealing element.
The sealing ring is a butadiene rubber sealing ring.
As shown in fig. 2, the gas interface is a tubular structure with an external convex ring structure at the gas inlet end; an external thread section structure 3-1 is arranged at the outlet end of the gas interface; the air inlet end of the air interface is rotatably sleeved through the loose joint nut.
As shown in fig. 3, the gas valve is a ball valve, an internal thread section structure 4-2 is arranged at the inlet end of the gas valve, and an external thread section structure 4-1 is arranged at the outlet end of the gas valve; a wrench is arranged outside the gas valve.
Because the 110 KV sulfur hexafluoride closed type combined electrical appliance uses SF6 gas, and the requirement for micro water content in high voltage use and regulation requirements is strict, when the combined electrical appliance is used as a connecting device and communicated with the internal SF6 gas, all parts cannot be made of iron, and therefore all parts of the combined electrical appliance are made of copper.
Specifically, in this technical scheme, the screw thread specification of gas connection export end is GB M20 1.0 external screw thread, and its rear end and the internal thread section structure rigid coupling of gas valve entrance end.
The inlet end of the gas valve is connected with the outlet end of the gas interface, the thread specification of the gas valve is GB M20X 1.0 internal thread, the outlet end of the gas valve is connected with the sensor expansion module, and the thread specification of the gas valve is GB M20X 1.5 external thread.
The connecting thread between the inlet end of the sensor chamber in the sensor expansion module body (namely the inlet end) and the outlet end of the gas valve is GB M20 x 1.5 internal threads, the sensor expansion module body is rectangular and is provided with 4 GB M20 x 1.5 internal thread holes (namely the standard interfaces), and the standard interface holes are used for conveniently connecting an SF6 gas sensor, an SF6 temperature sensor or an SF6 micro water sensor and the like.
If a certain standard interface hole does not use a sensor, the standard interface hole is sealed by an expander sealing element provided with GB M20 x 1.5 external threads, so that the functions of plugging and sealing similar to a pipeline plug are achieved, and joints between all the sensor holes and a sensor cavity can be sealed by butyl rubber sealing rings.
The connecting device for the combined electrical apparatus and the pressure sensor overcomes the problem of connection-conversion between a special non-standard component and a national standard component, realizes precise matching with an SF6 gas port of a GIS body, and has no implementation effect of gas leakage after installation. The SF6 gas pressure can be accurately and precisely acquired, so that the conventional combined electrical equipment can be smoothly butted with various detection sensors sold in the market, and the automation degree of field SF6 gas management work is greatly improved.
The utility model discloses but the gaseous on-line monitoring field of the SF6 of wide application in combined electrical apparatus.
Claims (9)
1. A connecting device for a combined electrical apparatus and a pressure sensor is characterized in that:
the connecting device comprises a conversion joint assembly, a gas valve and a sensor expansion module which are sequentially connected;
the adapter component comprises a loose joint nut and a gas interface which are sleeved;
the gas interface is a tubular structure with an external convex annular structure at the gas inlet end;
the gas interface is provided with an air inlet end with an external convex annular structure and rotatably penetrates through the loose joint nut in a sleeved mode;
an internal thread structure is arranged on the inner wall of the loose joint nut;
an external thread structure is arranged at the outlet end of the SF6 gas interface of the GIS body;
the loose joint nut sleeved on the gas inlet end of the gas interface and the SF6 gas port of the GIS body are screwed and fixed into a whole;
the thread pitch of the internal thread structure on the inner wall of the loose joint nut is the same as the thread pitch of the external thread structure of the SF6 gas port of the GIS body, and the thread pitches are in non-standard specifications;
the inlet end of the gas valve is provided with an internal thread section structure, and the outlet end of the gas valve is provided with an external thread section structure; a spanner is arranged outside the gas valve;
the sensor expansion module body is of a hollow rectangular block structure;
in the sensor expansion module, a sensor chamber is provided;
the inlet end of the sensor cavity and the outlet end of the gas valve are correspondingly and fixedly connected into a whole;
at least one standard interface is arranged along the longitudinal axis direction or the radial direction of the sensor cavity;
the standard interface is fixedly connected with an SF6 sensor correspondingly;
an expander sealing element is arranged at the vacant standard interface;
the inlet end of the sensor cavity and each standard interface are respectively and correspondingly provided with an internal thread section structure;
the gas path of the GIS body SF6 gas port, the loose joint nut, the gas interface, the gas valve, the sensor cavity and each standard interface are communicated and fixedly connected into a whole;
the thread pitch of each internal thread section structure or external thread section structure is in national standard.
2. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 1, wherein the gas valve is a ball valve.
3. The connecting device for a combined electrical appliance and a pressure sensor according to claim 1, wherein at least one standard port is provided in each of the longitudinal axial direction and the radial direction of the sensor chamber.
4. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 1, wherein two or more than two standard ports are provided in the longitudinal axis direction of the sensor chamber.
5. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 4, wherein the two or more than two standard ports are respectively arranged perpendicularly to the longitudinal axis of the sensor chamber.
6. The connecting device for a combined electrical appliance and a pressure sensor according to claim 4, wherein the longitudinal axes of the two or more standard interfaces are arranged in parallel.
7. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 1, wherein the SF6 sensor comprises at least an SF6 gas sensor, an SF6 temperature sensor or an SF6 micro water sensor.
8. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 7, wherein sealing rings are provided between the union nut and the SF6 gas port of the GIS body, between the standard interface and the SF6 sensor, and between the standard interface and the expander seal.
9. The connecting device for a combined electrical appliance and a pressure sensor as claimed in claim 8, wherein the sealing ring is a butyl rubber sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021300742.3U CN212658376U (en) | 2020-07-06 | 2020-07-06 | Connecting device for combined electrical apparatus and pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021300742.3U CN212658376U (en) | 2020-07-06 | 2020-07-06 | Connecting device for combined electrical apparatus and pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212658376U true CN212658376U (en) | 2021-03-05 |
Family
ID=74761106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021300742.3U Active CN212658376U (en) | 2020-07-06 | 2020-07-06 | Connecting device for combined electrical apparatus and pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212658376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898804A (en) * | 2021-09-27 | 2022-01-07 | 王熙尧 | Modularized intelligent flange, fluid container flange and pipeline structure flange |
-
2020
- 2020-07-06 CN CN202021300742.3U patent/CN212658376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898804A (en) * | 2021-09-27 | 2022-01-07 | 王熙尧 | Modularized intelligent flange, fluid container flange and pipeline structure flange |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212658376U (en) | Connecting device for combined electrical apparatus and pressure sensor | |
| CN107588866B (en) | GIS basin-type insulator temperature detection system | |
| CN203037284U (en) | Integrated SF6 gas density, micro-water and temperature transmitter | |
| CN107907806A (en) | A kind of bus voltage measurement device based on GIS disc insulator distribution capacity | |
| CN205483439U (en) | Device that monitoring GIS sulfur hexafluoride gas pressure of transformer substation changes and reports to police | |
| CN204647603U (en) | 66kV sulfur hexafluoride breaker test universal joint | |
| CN212658377U (en) | Combined electrical appliance pressure sensor connecting device with one-way non-return structure | |
| CN111289821A (en) | Coal mine underground power supply system electric energy quality monitoring device | |
| CN102305903B (en) | Partial discharge detection method for pulse current of electrified operation single phase integrated gas insulated switchgear (GIS) | |
| CN203491637U (en) | Resin impregnated paper capacitive extra-high voltage AC-DC wall bushing | |
| WO2015106590A1 (en) | Apparatus for measuring temperature and pressure in oil-submersible well | |
| CN209102309U (en) | A kind of SF having both verification valve function free of demolition6Pressure sensor | |
| CN205504258U (en) | Experimental universal adapter of 220kV SF 6 circuit breaker | |
| CN209707168U (en) | Insulating oil sampler suitable for on-load voltage regulating switch | |
| CN212646693U (en) | Online crude oil water content analyzer | |
| CN210073591U (en) | Oil-immersed current transformer internal abnormity judgment device based on accurate oil pressure acquisition method | |
| CN203216523U (en) | Displacement type gas chamber for online monitoring of moisture content and density of SF6 gas | |
| CN205538076U (en) | Sulfur hexafluoride gas pressure's analog quantity monitoring devices in transformer substation | |
| CN218730648U (en) | Novel remote transmission type SF6 density relay | |
| CN216161646U (en) | Teletransmission formula SF6 density relay structure convenient to dismouting | |
| CN220933113U (en) | Be used for flexible volume office of GIL telescopic joint to put on-line monitoring device | |
| CN214201061U (en) | SF6 micro water density detection sensor | |
| CN219675760U (en) | On-line density monitor | |
| CN201191259Y (en) | SF6 gas density relay meter connector | |
| CN213516146U (en) | Intelligent bus pressure transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |