CN104215495A - Corrugated pipe vacuum degassing device and method for dissolved gas in insulating oil - Google Patents
Corrugated pipe vacuum degassing device and method for dissolved gas in insulating oil Download PDFInfo
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- CN104215495A CN104215495A CN201410525642.3A CN201410525642A CN104215495A CN 104215495 A CN104215495 A CN 104215495A CN 201410525642 A CN201410525642 A CN 201410525642A CN 104215495 A CN104215495 A CN 104215495A
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Abstract
The invention provides a corrugated pipe vacuum degassing device and method for dissolved gas in insulating oil, wherein the device and the method are applicable to an on-line monitoring system of oil immersed electrical devices (such as a transformer and an electric reactor). The method is characterized in that a stepping motor drives a corrugated pipe cylinder to expand, generated vacuum is used for degassing, transfer is performed through a gas transfer chamber, and a chromatographic system is directly sampled. The technical scheme meets chromatographic detection standards of a domestic electric power industry for an insulating oil gas chromatograph of an oil-filled electrical device, and the device can serve as a degassing device before oil-gas chromatography and monitoring in the oil immersed electrical devices and has the advantages that the device is simple in structure, low in cost, full-automatic in degassing, short in oil-gas separation time, stable in performance and high in sensitivity, the gas transfer chamber and a degassing chamber share one cylinder, degassing use ratio is increased and the like.
Description
Technical field
The invention provides a kind of dissolved gas in oil Full-automatic vacuum degasser, belong to power system automatic field.
Background technology
Gas-oil separation technology is very extensive in the on-line monitoring system application of immersed electric apparatus oil, uses at present the many methods of isolation technics to have polymeric membrane Degassing Technology, vibration Degassing Technology, dynamic head space Degassing Technology, vacuum degassing technology.
The equilibration time of the degassed middle needs of polymeric membrane Degassing Technology is long, generally reach tens hours even tens hours, even if adopt the macromolecule membrane with micropore also to need more than 4 hours, secondly the film life-span is limited, affect long-term use, in addition, degassing efficiency point, steady some property is poor, and repeatability is not high yet.
Vibration Degassing Technology is mainly to get oily equipment with syringe or other to extract a certain amount of oil, after the nitrogen tonifying Qi of injection corresponding amount, under the condition of constant temperature, vibrate a period of time, after gas-oil separation balance, extracting a certain amount of sample gas injection off-line chromatographic equipment detects, this method shortcoming is complicated operation, the error that human factor can cause is large, and the time is also relatively long, and can not realize on-line real time monitoring.
Dynamically the shortcoming of head space Degassing Technology is to add carrier gas to carry out dissolved gas wash-out in oil, and oil has been caused to pollution, and oil can not be got back in oil immersion equipment and reuse, and causes very large waste, has also brought defect to on-line monitoring simultaneously.
Vacuum degassing technology comprises traditional mercury vacuum outgas method, saturated aqueous common salt vacuum outgas method, film vacuum degassing method etc., now typical vacuum outgas method adopts reducing piston and vacuum pump, although can realize completely degassed, but there is no till now a can very accurately various component gas in oil all being spun off, the sample gas in degas chamber thoroughly cannot be gathered yet.
In sum, whether have one can meet that the degassed time is short, degassing efficiency is high, simple to operate, can realize online degassed function in on-line monitoring, and meet hardware structure simple, reduce costs, the device of saving resource becomes a focus in gas-oil separation field.
Summary of the invention
The invention provides the invention provides a kind of can overcome long, degassing efficiency of above-mentioned degassed time at the bottom of, complicated operation, can not be degassed online shortcoming, meet simultaneously hardware structure simply, reduce costs, fully automatic vacuum degassing equipment in saving resource is applicable to immersed electric apparatus oil (transformer, reactor etc.) on-line monitoring system.
A kind of dissolved gas in oil Full-automatic vacuum degasser, it is characterized in that: gas-oil separation cylinder, quantitative storage tracheae, enter, delivery valve and some electrovalves etc., gas-oil separation cylinder is by being provided with inlet valve Y1, oil phase in delivery valve Y2 and oil immersion equipment connects, gas-oil separation cylinder joins the inner V1 of gas transfer chamber and degas chamber V2 by electrovalve D1, gas-oil separation cylinder is connected external atmosphere by electrovalve D2, gas-oil separation cylinder connects quantitative storage tracheae by electrovalve D3, quantitative storage tracheae is carried gas by electrovalve D4, the outlet of quantitative storage tracheae meets electrovalve D5, quantitative storage tracheae is established the logical atmosphere of vacuum pump.
Aforesaid dissolved gas in oil Full-automatic vacuum degasser, described gas-oil separation cylinder 1 inside is divided into degas chamber V2 and the V1 of gas transfer chamber is by same piston control space size.Guarantee is deviate from gas and can be transferred to smoothly gas transfer chamber from degas chamber smoothly.
Aforesaid dissolved gas in oil Full-automatic vacuum degasser, is provided with magnetic induction switch in described gas-oil separation cylinder 1, the position that accurately control piston moves.
Aforesaid dissolved gas in oil Full-automatic vacuum degasser, is provided with PT100 temperature controller in described gas-oil separation cylinder 1, ensures that degassed environment temperature remains on 50 DEG C.
Aforesaid dissolved gas in oil Full-automatic vacuum degasser, is characterized in that described fuel tap and solenoid valve are all unidirectional two-way, and the through and off of bonding guide are opened.
Its principle of work: the piston in gas-oil separation cylinder is in low order end, open inlet valve, close delivery valve, open the second solenoid valve on limit, gas transfer chamber, close the first solenoid valve, the 3rd solenoid valve, under the promotion of stepper motor, piston is to left movement, promote, after a segment distance, to close inlet valve, piston continues to promote left until high order end, now degas chamber overhead produces vacuum, realizes degassed; Close the second solenoid valve, the 3rd solenoid valve, open the second solenoid valve, stepper motor draws piston to get back to oil-feed position to the right, and gas forwards gas transfer chamber by the first solenoid valve to from degas chamber, completes gas and shifts.After quantitative storage tracheae vacuumizes, close first, second, the 4th, the 5th solenoid valve, open the 3rd solenoid valve, promote piston and be moved to the left, gas compression, in quantitative storage tracheae, is opened to delivery valve, piston movement, to rearmost end, flows back to fuel tank by waste oil.
Beneficial effect: first, realize gas-oil separation, degas chamber and gas transfer chamber are at same cylinder, and middle with piston isolation, while having avoided propelling movement degas chamber divided gas flow, gas back dissolving phenomenon occurs, and improves degassed rate.The second, only adopt a cylinder, a stepper motor to complete function degassed, gas transfer, save very large cost than three cylinders of the patents such as patent 201010004115X and motor; The 3rd, there is no supplementing method for air, degassed oil is not polluted, oil can come back in oil immersion equipment and utilize, and has reduced the wasting of resources; The 4th, utilize the 4th solenoid valve D4 and gas storage quantity tube 4, can replace expensive six-way valve.
Brief description of the drawings
Fig. 1 is dissolved gas in oil Full-automatic vacuum degasser structural representation of the present invention.
Embodiment
The present invention is a kind of dissolved gas in oil Full-automatic vacuum degasser, it comprises gas-oil separation cylinder 1, stepper motor 2, oil immersion equipment oil 3, quantitative storage tracheae 4, vacuum pump 5, inlet valve, delivery valve and some solenoid valves etc., described gas-oil separation cylinder 1 inside is divided into degas chamber V2 and the V1 of gas transfer chamber, described gas-oil separation cylinder 1 is by being provided with inlet valve Y1, delivery valve Y2 and oil immersion equipment oil 3 join, described gas-oil separation cylinder 1 is by the first electronics magnet valve D1, the 6th electronics magnet valve D6 joins the inner V1 of gas transfer chamber and degas chamber V2, described gas-oil separation cylinder 1 is connected external atmosphere by electrovalve D2, described gas-oil separation cylinder 1 connects quantitative storage tracheae 4 by the 3rd electronics magnet valve D3, quantitative storage tracheae 4 is carried gas by electrovalve D4, described quantitative storage tracheae 4 outlets meet the 5th electronics magnet valve D5, described quantitative storage tracheae is established the logical atmosphere of vacuum pump 5.
Pre-oil-feed is cleaned: the piston in gas-oil separation cylinder 1 is in low order end, opens the first solenoid valve D1, the second solenoid valve D2, the 3rd solenoid valve D3, the 4th solenoid valve D4, the 6th solenoid valve D6, closes the 5th solenoid valve D5, injects 5 seconds of carrier gas.
Oil-feed: close the first solenoid valve D1, the 3rd solenoid valve D3, the 4th solenoid valve D4, the 5th solenoid valve D5, the 6th solenoid valve D6, delivery valve Y1, open the second solenoid valve D2, inlet valve Y2, start stepper motor 2 and promote piston in gas-oil separation cylinder 1 to left movement, when piston moves to gas-oil separation cylinder 1 inner magnet inductive switch place, stop motion.
Degassed: to close the first solenoid valve D1, the 3rd solenoid valve D3, the 4th solenoid valve D4, the 5th solenoid valve D5, the 6th solenoid valve D6, delivery valve Y1, inlet valve Y2, open the second solenoid valve D2, now, in degas chamber, in closed state, the piston in startup stepper motor 2 continuation promotion gas-oil separation cylinders 1 is to high order end, degas chamber is in vacuum state, gas is deviate from from oil, more complete in order to make, and stepper motor push-and-pull piston is magnetic induction switch place and the most left short moving back and forth several times.
Vacuumize: close the second solenoid valve D2, the 4th solenoid valve D4, the 5th solenoid valve D5, the 6th solenoid valve D6, open the first solenoid valve D1, the 3rd solenoid valve D3, start vacuum pump 5, quantitative storage tracheae is vacuumized.
Gas-oil separation: close the second solenoid valve D2, the 3rd solenoid valve D3, the 4th solenoid valve D4, the 5th solenoid valve D5, open the first solenoid valve D1, the 6th solenoid valve D6, start stepper motor 2, pull piston in gas-oil separation cylinder 1 to move right to magnetic induction switch place, the gas of degas chamber is transferred to gas transfer chamber, complete gas-oil separation.
Compression divided gas flow: close the first solenoid valve D1, the second solenoid valve D2, the 4th solenoid valve D4, the 5th solenoid valve D5, the 6th solenoid valve D6, open the 3rd solenoid valve D3, in startup stepper motor promotion gas-oil separation cylinder 1, piston is to high order end, gas is pushed in quantitative storage tracheae, realizes gas compression function.
Oil extraction: close the first solenoid valve D1, the 3rd solenoid valve D3, the 4th solenoid valve D4, the 5th solenoid valve D5, the 6th solenoid valve D6, inlet valve Y2, open the second solenoid valve D2, delivery valve Y1, start piston in stepper motor promotion gas-oil separation cylinder 1 and, to low order end, waste oil is flow back to fuel tank.
Claims (5)
1. a Dissolved Gases in Insulating Oil corrugated tube vacuum degasser, it is characterized in that: gas-oil separation cylinder (1), stepper motor (2), oil immersion equipment oil (3), quantitative storage tracheae (4), vacuum pump (5), inlet valve, delivery valve and some solenoid valves, described gas-oil separation cylinder (1) inside is divided into degas chamber (V2) and gas transfer chamber (V1), described gas-oil separation cylinder (1) is by being provided with inlet valve (Y1), delivery valve (Y2) and oil immersion equipment oil (3) join, described gas-oil separation cylinder (1) is by the first electronics magnet valve D1, the 6th electronics magnet valve D6 joins inner gas transfer chamber (V1) and degas chamber (V2), described gas-oil separation cylinder (1) is connected external atmosphere by electrovalve (D2), described gas-oil separation cylinder (1) connects quantitative storage tracheae (4) by the 3rd electronics magnet valve (D3), quantitative storage tracheae (4) is carried gas by electrovalve (D4), described quantitative storage tracheae (4) outlet connects the 5th electronics magnet valve (D5), described quantitative storage tracheae is established the logical atmosphere of vacuum pump (5).
2. Dissolved Gases in Insulating Oil corrugated tube vacuum degasser according to claim 1, is characterized in that described gas-oil separation cylinder (1) inside is divided into degas chamber (V2) and gas transfer chamber (V1) is by same piston control space size.
3. Dissolved Gases in Insulating Oil corrugated tube vacuum degasser according to claim 1, is characterized in that being provided with magnetic induction switch in described gas-oil separation cylinder (1).
4. Dissolved Gases in Insulating Oil corrugated tube vacuum degasser according to claim 1, is characterized in that being provided with PT100 temperature controller in described gas-oil separation cylinder (1).
5. Dissolved Gases in Insulating Oil corrugated tube vacuum degasser according to claim 1, is characterized in that described inlet valve, delivery valve and solenoid valve are all unidirectional two logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525642.3A CN104215495A (en) | 2014-10-09 | 2014-10-09 | Corrugated pipe vacuum degassing device and method for dissolved gas in insulating oil |
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| CN201410525642.3A CN104215495A (en) | 2014-10-09 | 2014-10-09 | Corrugated pipe vacuum degassing device and method for dissolved gas in insulating oil |
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| CN104215495A true CN104215495A (en) | 2014-12-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569219A (en) * | 2015-01-06 | 2015-04-29 | 陈静 | Online variable-capacity vacuum full-automatic degasser for transformer oil |
| CN105699150A (en) * | 2016-04-08 | 2016-06-22 | 大连世有电力科技有限公司 | Vacuum ultrasonic degassing device for portable transformer oil photoacoustic spectrum detection device |
| CN108579135A (en) * | 2018-04-28 | 2018-09-28 | 国家电网公司 | A kind of portability insulating oil degassing device of constant temperature |
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| US20080137473A1 (en) * | 2005-02-28 | 2008-06-12 | Impulse Devices, Inc. | Method for cavitating fluids within a cavitation chamber using a hydraulically actuated driver |
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| CN103616274A (en) * | 2013-11-28 | 2014-03-05 | 国家电网公司 | Pretreatment device and pretreatment method for transformer oil |
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2014
- 2014-10-09 CN CN201410525642.3A patent/CN104215495A/en active Pending
Patent Citations (7)
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| US20080137473A1 (en) * | 2005-02-28 | 2008-06-12 | Impulse Devices, Inc. | Method for cavitating fluids within a cavitation chamber using a hydraulically actuated driver |
| CN201454165U (en) * | 2009-05-19 | 2010-05-12 | 无锡泰思特仪器设备有限公司 | Gas online separating device in dielectric oil |
| CN201477086U (en) * | 2009-09-02 | 2010-05-19 | 江苏省电力试验研究院有限公司 | Full-automatic vacuum degasser |
| CN202583147U (en) * | 2012-05-13 | 2012-12-05 | 江苏有能电力自动化有限公司 | Novel fully-automatic pump-type stirring and degassing device |
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| CN103616274A (en) * | 2013-11-28 | 2014-03-05 | 国家电网公司 | Pretreatment device and pretreatment method for transformer oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569219A (en) * | 2015-01-06 | 2015-04-29 | 陈静 | Online variable-capacity vacuum full-automatic degasser for transformer oil |
| CN105699150A (en) * | 2016-04-08 | 2016-06-22 | 大连世有电力科技有限公司 | Vacuum ultrasonic degassing device for portable transformer oil photoacoustic spectrum detection device |
| CN108579135A (en) * | 2018-04-28 | 2018-09-28 | 国家电网公司 | A kind of portability insulating oil degassing device of constant temperature |
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