CN203249813U - Gassing device for monitoring transformer oil - Google Patents
Gassing device for monitoring transformer oil Download PDFInfo
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- CN203249813U CN203249813U CN 201320278871 CN201320278871U CN203249813U CN 203249813 U CN203249813 U CN 203249813U CN 201320278871 CN201320278871 CN 201320278871 CN 201320278871 U CN201320278871 U CN 201320278871U CN 203249813 U CN203249813 U CN 203249813U
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- oil
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- air cylinder
- valve
- sampler
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Abstract
The utility model discloses a gassing device for monitoring transformer oil. The gassing device comprises an air cylinder and a sampler, wherein the sampler is connected with the transformer through a filling valve; the sampler is connected with the air cylinder through an antifouling chamber on one hand; the sampler forms a loop with the transformer through an oil discharging reversing valve and an oil discharging chamber on the other hand; a pipeline between the oil discharging chamber and the sampler is communicated with the air cylinder; the gassing device further comprises a stepping motor and a piston used for driving the air cylinder; the gassing device has only one air cylinder; the air cylinder is divided by the piston into an oil chamber at the upper part and an air chamber at the lower part; the sampler is connected with the air chamber of the air cylinder through the antifouling chamber; the pipeline between the oil discharging chamber and the sampler is communicated with the oil chamber of the air cylinder. According to the gassing device for monitoring transformer oil, the self stepping motor and the air cylinder piston of a vacuum degasser are used as power sources to carry out oil circulation, so that the secondary pollution to the transformer oil is not caused, and meanwhile, the single air cylinder structure is adopted, so that the cost is lower, and the system structure is optimized greatly while the oil-gas separation function is guaranteed.
Description
Technical field
The utility model belongs to technical field of electricity, particularly relates to a kind of gassing device for the transformer oil monitoring.
Background technology
Chromatography online monitoring system for transformer oil is mainly used in the fault characteristic gases (H that dissolves in the oil-immersed and high-voltage equipment oil such as on-line monitoring transformer
2, CO, CH
4, C
2H
4, C
2H
2, C
2H
6, CO
2) content and rate of growth thereof, and by fault diagnosis expert system early prediction hidden trouble of equipment information, avoid equipment breakdown, reduce heavy losses, improve the equipment reliability of operation.
Oil gassing device is the important composition unit of oil chromatography system, and its major function is that the fault characteristic gases that will be dissolved in the transformer oil breaks away from and resolves to freely gas phase state from dissolved state.The gas of separating out carries out gas chromatographic analysis through other link of oil chromatography system.Oil gassing link is the primary link of oil chromatography systematic analysis, and the gassing effect of oily gassing device and gassing efficient directly determine accuracy and the reliability of oil chromatography systematic analysis.
Present oily gassing device mainly contains film divergence type, the degassed type of head space and vacuum outgas type; Wherein vacuum outgas type is high with its degassed rate, stable performance becomes mainstream technology.
The applicant was once applying for the utility model of same area being the immediate prior art of the application before, and application number is 201220097083.This device comprises oil pump, sampling thief, pneumatic chamber, vacuum chamber etc., by building negative pressure, with gas evolution in the oil in the sampler chamber.The shortcoming of this device is to adopt oil pump as power source, and oil pump itself such as lubricant medium, may cause secondary pollution to oil, causes major safety risks.
Summary of the invention
The purpose of this utility model provides a kind of gassing device that is used for the transformer oil monitoring of non-pump type.
For this reason, the utility model has adopted following technical scheme: a kind of gassing device for the transformer oil monitoring, comprise cylinder, sampling thief, and sampling thief links to each other with transformer by inlet valve; It is characterized in that: sampling thief links to each other with cylinder by antifouling chamber on the one hand, and on the other hand by oil extraction reversal valve, oil extraction chamber and transformer formation loop, the oil extraction chamber is communicated with cylinder with pipeline between the sampling thief; It also comprises a stepper motor, drives the piston of cylinder.
Further, it only has a cylinder, and cylinder is take piston as the boundary, and top is the grease chamber, and the bottom is air chamber; Sampling thief links to each other with the air chamber of cylinder by antifouling chamber; The oil extraction chamber is communicated with the grease chamber of cylinder with pipeline between the sampling thief.
The utility model carries out the oil circulation with stepper motor and the cylinder piston of vacuum degasser itself as power source, can not cause secondary pollution to transformer oil.Simultaneously, adopted the structure of single cylinder, cost is lower, when guaranteeing the gas-oil separation function, has greatly optimized system architecture.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Indicate as follows among the figure: the 1-transformer, 2-inlet valve, 3-are crossed the oil mass protective valve, 4-oil extraction guide valve; the antifouling chamber of 5-, 6-pollution cotrol valve, 7-oil extraction protective valve; 8-oil extraction chamber, 9-pressure transducer, 10-exhaust-valve; the 11-carrier gas, 12-carrier gas valve, 13-quantity tube; the 14-stepper motor, 15-cylinder, 16-cylinder moving operation valve; the 17-draining valve, 18-sampler chamber, 19-oil extraction dynamic valve.
Embodiment
Referring to accompanying drawing.The present embodiment comprises transformer 1, sampling thief 18, and both link to each other by inlet valve 2; A cylinder 15 is arranged in the present embodiment, and its piston top is the grease chamber, and the bottom is air chamber; Sampling thief 18 passed through the air chamber of oil mass protective valve 3, antifouling chamber 5, pollution cotrol valve 6 connection cylinders 15, also was provided with simultaneously pressure transducer 9 and exhaust-valve 10 on the pipeline; Sampler chamber 18 also links to each other with oil extraction chamber 8 by oil extraction guide valve 4, the oil extraction chamber forms the loop by draining valve 17 and transformer 1 on the one hand, be communicated with sampler chamber 18 by oil extraction dynamic valve 19, cylinder moving operation valve 16 on the other hand, the oil extraction chamber also is provided with oil extraction protective valve 7; The grease chamber of the pipeline connection cylinder 15 between oil extraction dynamic valve 19, the cylinder moving operation valve 16.The piston of cylinder 15 is driven by stepper motor 14, and the gas in the air chamber of cylinder 15 is driven and enters quantity tube 13, and be further used for chromatogram monitoring by carrier gas 11, carrier gas valve 12.
The workflow of the present embodiment is such:
(1) circulation is drawn oil sample
(2) system is cleaned
Exhaust-valve 10 is opened, and pollution cotrol valve 6 is opened, and the piston of cylinder 15 moves upward, and timing time moves downward to the piston of exhaust hood 15, and exhaust-valve 10 is opened;
(3) system vacuumizes
Exhaust-valve 10 is closed, and pollution cotrol valve 6 cuts out, and the piston of cylinder 15 moves upward, timing time moves downward to the piston of exhaust hood 15;
(4) carrier gas flushing
The piston of cylinder 15 moves downward, and exhaust-valve 10 is opened simultaneously;
(5) formation testing is degassed
Adopt recycle design to carry out degassed, cycle index is specified by the user.The single cycle flow process is as follows:
Cross that oil mass protective valve 3 is opened, cylinder moving operation valve 16 is opened, pollution cotrol valve 6 cuts out, the piston of cylinder 15 moves downward;
(6) sample gas is collected
Cross that oil mass protective valve 3 is closed, cylinder moving operation valve 16 is closed, pollution cotrol valve 6 opens, the piston of cylinder 15 moves upward;
Cross that oil mass protective valve 3 is closed, cylinder moving operation valve 16 is closed, pollution cotrol valve 6 opens, the piston of cylinder 15 moves downward;
Cross that oil mass protective valve 3 is closed, cylinder moving operation valve 16 is closed, pollution cotrol valve 6 opens, the piston of cylinder 15 moves upward;
(7) sample gas sample introduction
Cross that oil mass protective valve 3 is closed, cylinder moving operation valve 16 is opened, pollution cotrol valve 6 cuts out, the piston of cylinder 15 moves downward;
(8) oil return
Cross that oil mass protective valve 3 is closed, cylinder moving operation valve 16 is closed, pollution cotrol valve 6 cuts out, draining valve 17 is opened, inlet valve 2 cuts out, oil extraction protective valve 7 is closed, oil extraction dynamic valve 19 is opened, the piston of cylinder 15 moves upward.
Claims (1)
1. a gassing device that is used for the transformer oil monitoring comprises cylinder, sampling thief, and sampling thief links to each other with transformer by inlet valve; It is characterized in that: sampling thief links to each other with cylinder by antifouling chamber on the one hand, and on the other hand by oil extraction reversal valve, oil extraction chamber and transformer formation loop, the oil extraction chamber is communicated with cylinder with pipeline between the sampling thief; It also comprises a stepper motor, drives the piston of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278871 CN203249813U (en) | 2013-05-21 | 2013-05-21 | Gassing device for monitoring transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278871 CN203249813U (en) | 2013-05-21 | 2013-05-21 | Gassing device for monitoring transformer oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249813U true CN203249813U (en) | 2013-10-23 |
Family
ID=49376246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320278871 Expired - Lifetime CN203249813U (en) | 2013-05-21 | 2013-05-21 | Gassing device for monitoring transformer oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249813U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616274A (en) * | 2013-11-28 | 2014-03-05 | 国家电网公司 | Pretreatment device and pretreatment method for transformer oil |
| CN105126391A (en) * | 2015-09-17 | 2015-12-09 | 四川原觉科技有限公司 | Separating device for dissolved gas in oil |
| CN105849553A (en) * | 2013-11-20 | 2016-08-10 | 赖茵豪森机械制造公司 | Apparatus and method for detecting gas |
-
2013
- 2013-05-21 CN CN 201320278871 patent/CN203249813U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849553A (en) * | 2013-11-20 | 2016-08-10 | 赖茵豪森机械制造公司 | Apparatus and method for detecting gas |
| CN103616274A (en) * | 2013-11-28 | 2014-03-05 | 国家电网公司 | Pretreatment device and pretreatment method for transformer oil |
| CN103616274B (en) * | 2013-11-28 | 2016-04-20 | 国家电网公司 | A kind of pretreatment unit of transformer oil and method |
| CN105126391A (en) * | 2015-09-17 | 2015-12-09 | 四川原觉科技有限公司 | Separating device for dissolved gas in 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 |