CN2791635Y - Fav-delivering SF gas density monitor - Google Patents
Fav-delivering SF gas density monitor Download PDFInfo
- Publication number
- CN2791635Y CN2791635Y CN 200520030689 CN200520030689U CN2791635Y CN 2791635 Y CN2791635 Y CN 2791635Y CN 200520030689 CN200520030689 CN 200520030689 CN 200520030689 U CN200520030689 U CN 200520030689U CN 2791635 Y CN2791635 Y CN 2791635Y
- Authority
- CN
- China
- Prior art keywords
- monitor
- gas density
- teletransmission
- density monitor
- 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 relates to a long-distance transmission SF6 gas density monitor which is suitable for being used on high-voltage electrical devices which use gas SF6 as an insulating medium. The utility model comprises an elastic tube which is arranged in the long-distance transmission SF6 gas density monitor, and a pressure strain gage which is pasted on the tube wall of the elastic tube is connected with an external signal processing part through a signal line which is led out. The signal processing part is a monitor which is arranged on a main body of the monitor, and the long-distance transmission SF6 gas density monitor and the monitor adopt an assembly type integration structure. The high accuracy strain gage is pasted on the tube wall of the elastic tube arranged in the monitor, and changes in electric signals are obtained through the deformation of the elastic tube, which is generated when pressure changes; thereby, the conversion of the analog quantity of the pressure signals is realized. The utility model has the advantages of simple structure, economic usefulness and accurate measurement.
Description
Technical field:
The utility model belongs to gas density surveillance technology field, relates in particular to a kind of being applicable to SF
6The teletransmission SF that uses on the high voltage electric equipment of gas as insulating medium
6The gas density monitor.
Background technology:
Original SF
6Gas density relay has had the history in a lot of years, and major function is mounted in SF
6On the high voltage electric equipment of gas as insulating medium, on-the-spot indication SF
6Gas density, and send alerting signal.In actual applications, many shortcomings are arranged: 1, the staff must arrive and on-the-spot just can know current SF
6Gas density has strengthened work difficulty when rainy day or environment are abominable, need the cost great amount of manpower.2, can not predict SF
6The leakage trend of gas density also can not be carried out tonifying Qi timely and prepare.
Summary of the invention:
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of can be with SF
6Gas density teletransmission and represent the teletransmission SF of leakage trend
6The gas density monitor.
The object of the present invention is achieved like this: comprise teletransmission SF
6The bourdon tube that the gas density monitor inside is provided with posts the pressure-strain sheet on the bourdon tube tube wall.Described pressure-strain sheet is a kind of pressure transducer, and is connected with the signal processing of outer setting by drawing signal wire.Described signal processing part is divided into by aviation plug and is arranged on monitor on the monitor body.Teletransmission SF
6The gas density monitor takes the assembly type integral structure to connect together with monitor.Being attached on the tube wall of monitor inside bourdon tube on the high-precision foil gauge, the deformation that utilizes bourdon tube to produce when pressure changes obtains the variation of electric signal, thereby the analog quantity that realizes pressure signal changes.
The utlity model has following good effect: being attached on the high-precision foil gauge on the tube wall of monitor inside bourdon tube, the deformation that utilizes bourdon tube to produce when pressure changes obtains the variation of electric signal, thereby the analog quantity that realizes pressure signal changes, and can realize monitoring SF
6The unmanned post mode of gas density, only needs simple operations on computers just can be to the SF of current each measurement point
6Gas density comes into plain view, and can also predict the leakage trend of gas density, makes the staff in time carry out tonifying Qi and prepares.Have simple in structure, economical and practical, measure advantage accurately.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the general assembly drawing of the utility model and monitor.
Embodiment:
As shown in Figure 1, the utility model comprises teletransmission SF
6The bourdon tube 1 that the gas density monitor inside is provided with posts pressure-strain sheet 2 on bourdon tube 1 tube wall.Described pressure-strain sheet 2 is a kind of pressure transducers, and is connected with the signal processing 4 of outer setting by drawing signal wire.Monitor has adopted novel design, and being attached on the tube wall of monitor inside bourdon tube on the high-precision foil gauge, the deformation that utilizes bourdon tube to produce when pressure changes obtains the variation of electric signal, thereby the analog quantity that realizes pressure signal changes.Placed the high accuracy number temperature sensor in monitor inside, thereby realized temperature signal is changed into digital signal.
As shown in Figure 2, described signal processing 4 is for being arranged on the monitor 4 on the monitor body 3 by aviation plug.Teletransmission SF
6 Gas density monitor 3 takes the assembly type integral structure to connect together with monitor.On monitor body, reserved aviation plug, the YMJ-1A type monitor of selling on the market is being installed on the aviation plug, this this monitor volume is little, in light weight, can directly hang on the monitor, easy for installation flexible, when not needing the signal is far passed, can remove, when teletransmission of needs density and networking, can load onto at any time.YMJ-1A type monitor is a digital signal with the electrical signal conversion of monitor pressure sensor output, according to SF
6Gaseous tension and thermometer are calculated SF
6Gas density links to each other with on-line monitoring system again, thereby realizes SF
6The teletransmission of gas density and temperature.
Claims (4)
1, a kind of teletransmission SF
6The gas density monitor comprises teletransmission SF
6The bourdon tube (1) that the gas density monitor inside is provided with is characterized in that: post pressure-strain sheet (2) on bourdon tube (1) tube wall.
2, a kind of teletransmission SF according to claim 1
6The gas density monitor is characterized in that: described pressure-strain sheet (2) is a kind of pressure transducer, and is connected with the signal processing (4) of outer setting by drawing signal wire.
3, a kind of teletransmission SF according to claim 1
6The gas density monitor is characterized in that: described signal processing (4) is for being arranged on the monitor (4) on the monitor body (3) by aviation plug.
4, a kind of teletransmission SF according to claim 3
6The gas density monitor is characterized in that: teletransmission SF
6Gas density monitor (3) takes the assembly type integral structure to connect together with monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030689 CN2791635Y (en) | 2005-05-18 | 2005-05-18 | Fav-delivering SF gas density monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030689 CN2791635Y (en) | 2005-05-18 | 2005-05-18 | Fav-delivering SF gas density monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791635Y true CN2791635Y (en) | 2006-06-28 |
Family
ID=36807698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030689 Expired - Fee Related CN2791635Y (en) | 2005-05-18 | 2005-05-18 | Fav-delivering SF gas density monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791635Y (en) |
-
2005
- 2005-05-18 CN CN 200520030689 patent/CN2791635Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |