CN203249902U - Monitoring device for gas in transformer oil - Google Patents
Monitoring device for gas in transformer oil Download PDFInfo
- Publication number
- CN203249902U CN203249902U CN 201320278916 CN201320278916U CN203249902U CN 203249902 U CN203249902 U CN 203249902U CN 201320278916 CN201320278916 CN 201320278916 CN 201320278916 U CN201320278916 U CN 201320278916U CN 203249902 U CN203249902 U CN 203249902U
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- end port
- gas
- port
- way valve
- monitoring device
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a monitoring device for gas in transformer oil, which includes a six-way valve with a first end port, a second end port, a third end port, a fourth end port, a fifth end port and a sixth end port, wherein the external connection manner is that the first end port is connected with a carrier gas source, the second end port is connected with a chromatographic column, the fourth end port and the fifth end port are connected with an air cylinder of the transformer oil, and the third end port is connected with the sixth end port through a quantitative tube arranged therebetween; the two internal connection manners are that the first end port is connected with the second end port, the third end port is connected with the fourth end port, and the fifth end port is connected with the sixth end port or the second end port is connected with the third end port, the fourth end port is connected with the fifth end port, and the sixth end port is connected with the first end port respectively; the monitoring device further includes a pneumatic reversing drive valve taking the carrier gas as the gas source, is connected with the six-way valve, and is used for switching the two internal connection manners. The monitoring device takes the gas source as the power drive of the six-way valve, thereby being lower in cost and more convenient for switching.
Description
Technical field
The utility model belongs to electrical equipment technical field, particularly relates to the Gas in Oil of Transformer monitoring device.
Background technology
In order to improve the safe operation of whole electric system, implement diagnosing fault of power transformer and be very important.When transformer existed local overheating or shelf depreciation, the insulating oil of trouble location or solid insulator will decomposite small molecule hydrocarbon class gas (such as CH
4, C
2H
6, C
2H
4, C
2H
2Deng) and other gases (such as H
2, CO, CO
2Deng).Above-mentioned every kind of gas in oil concentration and oil in the total concentration (TCG) of inflammable gas all can be used as the index of transformer equipment diagnosing interior faults.
Chromatography online monitoring system for transformer oil is from having changed in essence traditional transformer oil monitoring mode, can effectively monitor the content of the oil dissolved gas of transformer, inform the variation tendency of gas composition in the oil of site administrator's transformer by Data Analysis Platform, according to Monitoring Data, in time judge the transformer fault type.
Its ultimate principle is to be dissolved in fault characteristic gas in the transformer oil after degasser is degassed, under the promotion of carrier gas, pass through chromatographic column, because chromatographic column possesses different affinity interactions to different gas, cause fault characteristic gas to be separated by complying with, sensor is to failure gas (H
2, CO, CO
2, CH
4, C
2H
6, C
2H
4, C
2H
2) press out peak order and detect respectively, and convert the grey density characteristics of gas to electric signal.Data processor is processed electric signal and is changed into digital signal, and is stored on the embedded mass storage of data processor.Main control computer obtains daily Monitoring Data through the RS485 module by the local communication bus, realizes the on-line monitoring function of transformer fault.
Therefore, the transformer oil chromatographic data process subsystem need to be carried out analyzing and processing to daily Monitoring Data, the content of failure gas each component and total hydrocarbon extracted transformer fault is carried out analysis-by-synthesis diagnosis, and in conjunction with correlation technique rules, guide rule, technical supervision and maintainer's practical experience, to extracted data represent form, associated data, life cycle, the historical attributes such as the degree of depth that keep carry out standardized management.Thereby in time capture transformer fault information, the coaching device operating maintenance of science.
In the prior art, the core of monitoring device is the electromagnetism six-way valve, comprise the 1st, the 2nd, the 3rd, the 4th, the 5th, the 6 six port, outside connected mode is: the 1st port is connected with the carrier gas source of the gas, the 2nd port is connected with chromatographic column, 4th, the 5th port is connected with the cylinder of transformer oil, links to each other with quantity tube between the 3rd, the 6th port; Inner connecting way has two kinds: 1st, 2 ports, the 3rd, 4 ports, the 5th, 6 ports link to each other respectively; Or the 2nd, 3 ports, the 4th, 5 ports, the 6th, 1 port link to each other respectively, make six-way valve switch between above-mentioned two kinds of inner connecting ways with external power supply.This mode as power drive, when longer between in use, easily produces clamping stagnation with power supply, affects smooth and easy and complete that valve switches; Because parts are many, its cost is also higher simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of more reliable, economic Gas in Oil of Transformer monitoring device.
The technical solution adopted in the utility model is such: the Gas in Oil of Transformer monitoring device, comprise a six-way valve, have the 1st, the 2nd, the 3rd, the 4th, the 5th, the 6 six port, outside connected mode is: the 1st port is connected with the carrier gas source of the gas, the 2nd port is connected with chromatographic column, 4th, the 5th port is connected with the cylinder of transformer oil, links to each other with quantity tube between the 3rd, the 6th port; Inner connecting way has two kinds: 1st, 2 ports, the 3rd, 4 ports, the 5th, 6 ports link to each other respectively; Or the 2nd, 3 ports, the 4th, 5 ports, the 6th, 1 port link to each other respectively; It is characterized in that: also comprise a pneumatic commutation driver's valve, take carrier gas as source of the gas, be connected with six-way valve, drive six-way valve and between its two kinds of inner connecting ways, switch.
The utility model is with the power drive of source of the gas as six-way valve, and cost is lower, switches also more convenient.
Description of drawings
Fig. 1, Fig. 2 are respectively the schematic diagram of the utility model before and after switching.
Embodiment
Referring to accompanying drawing.The present embodiment comprises transformer oil cylinder 7 and six-way valve 4, and six-way valve 4 has six ports, is labeled as respectively 41,42,43,44,45,46.The gas of carrier gas tank 8 is divided into two-way after by reduction valve 1, and one the tunnel connects six-way valve port 41, a tunnel connects pneumatic commutation driver's valve 5, and pneumatic commutation driver's valve 5 is connected with six-way valve by A, two ports of B respectively, and at switching direction.The port 42 of six-way valve connects chromatographic column 2, and the analysis result of chromatographic column passes to signal processing module 6 again by sensor 3.
Referring to accompanying drawing 1, in original state, the port 41 of six-way valve is communicated with 42, and 43 are communicated with 44, and 45 are communicated with 46; 44,45 connect respectively between the cylinder 7,43,46 and are connected with quantity tube, thereby the sample gas in the cylinder consists of a loop by 45,46,43,44, makes and contains sample gas in the quantity tube.
Referring to accompanying drawing 2, begin monitoring after, carrier gas is by pneumatic commutation driver's valve 5, makes the inner annexation switching of six-way valve, 42 are communicated with 43,44 are communicated with 45,46 are communicated with 41; The carrier gas path is reduction valve 1, and------46---43---42---chromatographic column 2 under nebulizer gas pressure, is delivered to chromatographic column with the sample gas in the quantity tube and monitors port 41.
After monitoring finished, carrier gas by pneumatic commutation driver's valve 5, was switched back original state with six-way valve again.
Claims (1)
1. Gas in Oil of Transformer monitoring device, comprise a six-way valve, have the 1st, the 2nd, the 3rd, the 4th, the 5th, the 6 six port, outside connected mode is: the 1st port is connected with the carrier gas source of the gas, the 2nd port is connected with chromatographic column, 4th, the 5th port is connected with the cylinder of transformer oil, links to each other with quantity tube between the 3rd, the 6th port; Inner connecting way has two kinds: 1st, 2 ports, the 3rd, 4 ports, the 5th, 6 ports link to each other respectively; Or the 2nd, 3 ports, the 4th, 5 ports, the 6th, 1 port link to each other respectively; It is characterized in that: also comprise a pneumatic commutation driver's valve, take carrier gas as source of the gas, be connected with six-way valve, drive six-way valve and between its two kinds of inner connecting ways, switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278916 CN203249902U (en) | 2013-05-21 | 2013-05-21 | Monitoring device for gas in transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278916 CN203249902U (en) | 2013-05-21 | 2013-05-21 | Monitoring device for gas in transformer oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249902U true CN203249902U (en) | 2013-10-23 |
Family
ID=49376335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320278916 Expired - Lifetime CN203249902U (en) | 2013-05-21 | 2013-05-21 | Monitoring device for gas in transformer oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236986A (en) * | 2014-09-22 | 2014-12-24 | 杭州申昊科技股份有限公司 | Transformer oil gassing device |
| CN104655747A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | On-line monitoring system for gas in transformer oil |
| CN105738549A (en) * | 2015-01-06 | 2016-07-06 | 南京特种气体厂有限公司 | Ammonia gas monitoring alarming and switching method based on chromatographic analysis |
-
2013
- 2013-05-21 CN CN 201320278916 patent/CN203249902U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236986A (en) * | 2014-09-22 | 2014-12-24 | 杭州申昊科技股份有限公司 | Transformer oil gassing device |
| CN105738549A (en) * | 2015-01-06 | 2016-07-06 | 南京特种气体厂有限公司 | Ammonia gas monitoring alarming and switching method based on chromatographic analysis |
| CN105738549B (en) * | 2015-01-06 | 2018-04-17 | 南京特种气体厂股份有限公司 | A kind of ammonia monitoring, alarming and switching method based on chromatography |
| CN104655747A (en) * | 2015-01-28 | 2015-05-27 | 杭州申昊科技股份有限公司 | On-line monitoring system for gas in transformer oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU SHENHAO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENHAO INFORMATION SCIENCE + TECHNOLOGY CO., LTD., HANGZHOU |
|
| CP03 | Change of name, title or address |
Address after: Yuhang District Longtan Street warehouse before 311121 Hangzhou Road, Zhejiang, No. 21 Patentee after: Hangzhou Shenhao Technology Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310030 Xihu District Xiyuan Road No. 16 Building No. 5 3 floor Patentee before: HANGZHOU SHENHAO INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
|
| CX01 | Expiry of patent term |