CN206862552U - For measuring the pressure transmitter of high-tension switch gear - Google Patents
For measuring the pressure transmitter of high-tension switch gear Download PDFInfo
- Publication number
- CN206862552U CN206862552U CN201720548091.1U CN201720548091U CN206862552U CN 206862552 U CN206862552 U CN 206862552U CN 201720548091 U CN201720548091 U CN 201720548091U CN 206862552 U CN206862552 U CN 206862552U
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- switch gear
- tension switch
- processor
- pressure
- 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.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure transmitter for being used to measure high-tension switch gear, including housing, pressure sensor, processor, the enclosure interior is cavity, through hole is provided among cavity bottom, the housing bottom is by being provided with the hickey for being used for docking with high-tension switch gear gas supplementing opening at through hole lower end, the pressure sensor is placed in through-holes, it is close to pressure sensor in the hickey inner chamber and is provided with baffle plate, baffle plate intermediate openings, the pressure sensor is provided with sealing gasket with baffle plate contact position, pressure sensor is provided with sealing ring with through hole hole wall contact position, processor is provided with the housing hollow, processor is fixed on cavity bottom by copper post, the pressure sensor is connected by the first signal wire with processor, processor is extend out to outside housing by secondary signal line from case top.
Description
Technical field
A kind of pressure transmitter is the utility model is related to, more particularly to a kind of pressure for being used to measure high-tension switch gear becomes
Send device.
Background technology
Pressure transmitter is a kind of sensor for measuring the liquid level of liquid, gas or steam, density and pressure.Pressure
Transmitter is a kind of sensor the most commonly used in industry, and it is widely used in water conservancy and hydropower, railway traffic, intelligent building, life
Originate from numerous industries such as control, Aero-Space, military project, petrochemical industry, oil well, electric power, ship, lathe, pipeline.In power system, lead to
The SF6 gases for often filling certain pressure with high-tension switch gear are used for insulation and arc extinguishing, but with the growth of run time, if
Standby to leak air for some reason, if can not find to carry out tonifying Qi in time, final equipment can be electrically shocked and wear, therefore
Each high-tension switch gear air chamber is equipped with pressure sensor.
Existing frequently-used pressure transmitter is mostly shown in Fig. 1.Transmitter hickey 1 and high-tension switch gear gas supplementing opening pair
Connect, the sealing for carrying out housing outer layer and high-tension switch gear by laying sealing ring in seal groove 2.Pressure sensor 7 uses
Be the sensor for spreading silicon core body, its housing is encapsulated using metal aluminum hull, and the inside is full of silicone oil, and measurement surface is very thin
Corrugated aluminum film, the pressure of SF6 gases to be measured pass to silicone oil by corrugated aluminum film, and silicone oil gives pressure transmission to diffusion silicon again
Core body.Sealing between pressure sensor 7 and housing is sealed by sealing ring 8.The pressure value that pressure sensor 7 is surveyed
Processor 4 is transmitted to by transmission line 6, while temperature sensor 5 is mounted with processor 4, the pressure that processor 4 will receive
Value and temperature value carry out approximate conversion, the pressure value of 20 degree of temperature of acquisition, and are exported by transmission line 6.Processor 4 passes through copper
Post 3 is fixed.
Existing pressure transmitter has the disadvantage that：1. because the pressure sensor 7 of use is mostly that diffused-silicon pressure passes
Sensor, its housing are packaged using metallic aluminium, are easily corroded by SF6 gas analytes, once it is corroded, the inside
Silicone oil will flow out, pollution high voltage switchgear cavity, cause high-tension switch gear dielectric breakdown accident；2. pressure sensing
Sealing between device 7 and housing is sealed by sealing ring 8, and the bad control of compression ratio of sealing ring, decrement crosses I
It can cause poorly sealed, decrement is excessive may to cause sealing gasket fatigue and gas leakage, therefore easy gas leakage；3. temperature sensor 5
In process plate 4, the influence of the heating of plate 4 is processed, measured temperature is the temperature of transmitter cavity, rather than SF6
The temperature of gas, therefore temperature sensor 5 is difficult the temperature for accurately measuring SF6 gases, is caused when calculating 20 degree of pressure values
There is larger error.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in construction, good sealing effect, measurement accurately
For measuring the pressure transmitter of high-tension switch gear.
The technical scheme that the utility model solves the above problems is：A kind of pressure inverting for being used to measure high-tension switch gear
Device, including housing, pressure sensor, processor, the enclosure interior are cavity, and through hole, the shell are provided among cavity bottom
Put by being provided with the hickey for being used for docking with high-tension switch gear gas supplementing opening, the pressure sensor at through hole lower end body bottom
Put in through-holes, pressure sensor is close in the hickey inner chamber and is provided with baffle plate, baffle plate intermediate openings, the pressure sensing
Device and baffle plate contact position are provided with sealing gasket, and pressure sensor and through hole hole wall contact position are provided with sealing ring, in the housing hollow
Provided with processor, processor is fixed on cavity bottom by copper post, and the pressure sensor passes through the first signal wire and processor
It is connected, processor is extend out to outside housing by secondary signal line from case top.
The above-mentioned pressure transmitter for being used to measure high-tension switch gear, in addition to temperature sensor, temperature sensor installation
On pressure sensor, and heat conductive silica gel is scribbled between temperature sensor and pressure sensor.
The above-mentioned pressure transmitter for being used to measure high-tension switch gear, the housing bottom are located at hickey external circumferential
Provided with annular seal groove, O-ring seal is provided with seal groove.
The above-mentioned pressure transmitter for being used to measure high-tension switch gear, the pressure sensor is ceramic pressure sensor.
The beneficial effects of the utility model are：
1st, the utility model uses double-layer seal form to pressure sensor, and first layer is by sealing gasket to pressure sensor
Bottom is sealed, and the second layer is sealed by sealing ring to pressure sensor wall, easy for installation, and sealing property is stable,
The very high seal request of high-tension switch gear can be met.
2nd, temperature sensor is arranged on ceramic pressure sensor by the utility model, is good using ceramic pressure sensor
Good thermal conductivity, is conducted to temperature sensor by SF6 gas temperatures, can be accurately measured using such a mode temperature sensor
The temperature of SF6 gases, to carry out 20 degree of pressure value conversions.
3rd, the utility model is measured using the highly stable ceramic pressure sensor of chemical property to SF6 gases, no
It can be reacted with SF6 gas analytes, not have pilot Medium Oil pollution high voltage switchgear, service behaviour is more stable.
Brief description of the drawings
Fig. 1 is the structural representation of existing pressure transmitter.
Fig. 2 is structural representation of the present utility model.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Fig. 2 a kind of pressure transmitter for being used to measure high-tension switch gear, including housing 11, pressure sensor
7th, processor 4, temperature sensor 5, the inside of housing 11 is cavity, and through hole, the bottom of housing 11 are provided among cavity bottom
By being provided with the hickey 1 for being used for docking with high-tension switch gear gas supplementing opening at through hole lower end, the bottom of housing 11 is located at screw thread in portion
The external circumferential of interface 1 is provided with annular seal groove 2, and O-ring seal is provided with seal groove 2；The pressure sensor 7 is pressed for ceramics
Force snesor, pressure sensor 7 are placed in through-holes, and being close to pressure sensor 7 in the inner chamber of hickey 1 is provided with baffle plate
10, the intermediate openings of baffle plate 10, the pressure sensor 7 is provided with sealing gasket 9, pressure sensor 7 and through hole with the contact position of baffle plate 10
Hole wall contact position is provided with sealing ring 8, and temperature sensor 5 is arranged on pressure sensor 7, and temperature sensor 5 and pressure sensing
Heat conductive silica gel is scribbled between device 7；Processor 4 is provided with the cavity of housing 11, processor 4 is fixed on cavity bottom by copper post 3
Portion, the pressure sensor 7 are connected by the first signal wire 6-1 with processor 4, and processor 4 is by secondary signal line 6-2 from shell
The top of body 11 is extend out to outside housing 11.
The utility model measures SF6 gas pressures, Bu Huiyu using the highly stable ceramic pressure sensor 7 of chemical characteristic
SF6 gas analytes react, and corrosion phenomenon will not occur；Sealing between ceramic pressure sensor 7 and housing 11 is to adopt
Sealed with double-layer seal, easy for installation using double-layer seal form, sealing property is high, can meet high-tension switch gear very
High seal request；Temperature sensor 5 is arranged on ceramic pressure sensor 7, and coats heat conductive silica gel and is passed with ceramic pressure
Sensor 7 fully contacts, and to obtain accurate SF6 gas temperatures, carries out 20 degree of pressure value conversions.
Claims (4)
- A kind of 1. pressure transmitter for being used to measure high-tension switch gear, it is characterised in that：Including housing, pressure sensor, place Device is managed, the enclosure interior is cavity, and through hole is provided among cavity bottom, and the housing bottom is used for by being provided with through hole lower end The hickey docked with high-tension switch gear gas supplementing opening, the pressure sensor are placed in through-holes, in the hickey It to be close to pressure sensor in chamber and is provided with baffle plate, baffle plate intermediate openings, the pressure sensor is provided with sealing gasket with baffle plate contact position, Pressure sensor is provided with sealing ring with through hole hole wall contact position, is provided with processor in the housing hollow, processor passes through copper post Cavity bottom is fixed on, the pressure sensor is connected by the first signal wire with processor, and processor passes through secondary signal line It is extend out to from case top outside housing.
- 2. the pressure transmitter according to claim 1 for being used to measure high-tension switch gear, it is characterised in that：Also include temperature Sensor is spent, temperature sensor is arranged on pressure sensor, and thermal conductive silicon is scribbled between temperature sensor and pressure sensor Glue.
- 3. the pressure transmitter according to claim 1 for being used to measure high-tension switch gear, it is characterised in that：The housing Bottom is located at hickey external circumferential and is provided with annular seal groove, and O-ring seal is provided with seal groove.
- 4. the pressure transmitter according to claim 1 for being used to measure high-tension switch gear, it is characterised in that：The pressure Sensor is ceramic pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548091.1U CN206862552U (en) | 2017-05-17 | 2017-05-17 | For measuring the pressure transmitter of high-tension switch gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548091.1U CN206862552U (en) | 2017-05-17 | 2017-05-17 | For measuring the pressure transmitter of high-tension switch gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862552U true CN206862552U (en) | 2018-01-09 |
Family
ID=60824165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720548091.1U Expired - Fee Related CN206862552U (en) | 2017-05-17 | 2017-05-17 | For measuring the pressure transmitter of high-tension switch gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN108468632A (en) * | 2018-05-10 | 2018-08-31 | 西安交通大学 | Pressure ejector in a kind of compresser cylinder |
-
2017
- 2017-05-17 CN CN201720548091.1U patent/CN206862552U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302332A (en) * | 2018-01-31 | 2018-07-20 | 绵阳市维博电子有限责任公司 | A kind of micro- leak detection device of combustion gas |
| CN108468632A (en) * | 2018-05-10 | 2018-08-31 | 西安交通大学 | Pressure ejector in a kind of compresser cylinder |
| CN108468632B (en) * | 2018-05-10 | 2023-07-25 | 西安交通大学 | Device for leading out pressure in cylinder of compressor |
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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 |
Granted publication date: 20180109 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |