CN102462978A - Combined type degassing technology for vacuum oil filter - Google Patents
Combined type degassing technology for vacuum oil filter Download PDFInfo
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- CN102462978A CN102462978A CN2011101929651A CN201110192965A CN102462978A CN 102462978 A CN102462978 A CN 102462978A CN 2011101929651 A CN2011101929651 A CN 2011101929651A CN 201110192965 A CN201110192965 A CN 201110192965A CN 102462978 A CN102462978 A CN 102462978A
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Abstract
The invention relates to a combined type degassing technology for a vacuum oil filter. A method that atomized spray degassing and film degassing are combined is adopted to increase contact time of insulating oil and vacuum and improve the degassing efficiency.
Description
Affiliated technical field
The present invention relates to a kind of vacuum oil-filtering apparatus with combined type degassing technology.
Background technology
Vacuum degassing tower is the nucleus equipment of vacuum oil-filtering apparatus, and the principle of its vacuum outgas is the different saturated vapor pressure that utilizes Oil, Water, Gas under identical external condition, to be had, and in vacuum chamber, realizes the separation of Oil, Water, Gas.Under the certain vacuum condition, the evaporation of vaporizing rapidly of gas that saturated vapor pressure is lower and moisture content is extracted it out vacuum chamber by vacuum system then, thereby is reached the purpose except that water degassing.
The degassing technology that vacuum degassing tower is commonly used at present has the spray atomizing degassing and thin film evaporation degassing dual mode.Wherein adopt the spray atomizing to outgas; It is with after the spray thrower ejection atomizing of oil in the tower that for example Japanese three U.S.As, Japan add vacuum degassing technology that the rattan vacuum oil-filter adopted; At the bottom of falling tower through the gravity effect, utilize oil to contact to process that falls and vacuum and reach the purpose that dehydration outgases from spray thrower ejection back.The oil product hang time of this structure is short, and needing repeatedly, circulation just can reach degasifying effect.
The another kind of degassing ring thin film evaporation that adopts outgases; For example the vacuum degassing technology that adopted of Mike Fei Er, ABB vacuum oil-filter is that the oil-in of oil from cat head injected in the tower; The fluid attitude flows down the back through degassing circular layer, on degassing ring, forms oil film, the vaporising under vacuum dehydration degassing.The space on the vacuum degassing tower top nearly 1/4th of this structure only be used for distributing oil stream; Be not fully utilized; And the oil that flows down can not all form even oil film on the degassing ring, and is often more at the part oil stream near the center of circle, thereby degasifying effect is general.
Summary of the invention
The technical problem that solves:
The degassing technology that vacuum degassing tower is commonly used at present has the spray atomizing degassing and thin film evaporation degassing dual mode.When adopting the direct fountain degassing technological separately, the hang time of oil product is short, and needing repeatedly, circulation just can reach degasifying effect; When adopting separately degassing ring thin film evaporation degassing technology, the vacuum column upper space can't utilize, and partial volume is wasted, and oil can not form even oil film on degassing ring, and degasifying effect is general.The present invention has adopted the technology of the atomizing spray degassing and thin film evaporation degassing combination use, and the advantage of two kinds of technology is combined, and has remedied defective separately simultaneously, thereby has improved the efficient of vacuum outgas, has reduced the needed volume of vacuum degassing tower.
Summary of the invention:
The object of the present invention is to provide a kind of degassing efficiency high, device space utilization is abundant, and is simple in structure, is suitable for the vacuum outgas method of suitability for industrialized production utilization.
The technical scheme that realizes the object of the invention is: a kind of vacuum oil-filtering apparatus may further comprise the steps with combined type degassing technology:
The first step is injected spray atomizer with insulating oil with certain pressure;
Second step was atomized into diameter by spray atomizer with insulating oil and drips less than the small fluid of 0.2mm, to the top ejection, can adopt a plurality of spray atomizers when the insulating oil flow is big, fluid was dripped be covered with the cavity on degassing ring top in the vacuum column;
In the 3rd step, fluid drops under the gravity effect and slowly descends; In this process, fully contact with vacuum, part water and gas evaporate from fluid drips, and are siphoned away by vavuum pump;
In the 4th step, fluid forms even oil film as thin as a wafer at degassing ring surface after dripping and being deposited to degassing circular layer top;
In the 5th step, the oil film that under the gravity effect, slowly flows to degassing circular layer bottom fully contacts with vacuum, and water and gas continue from fluid drips, to evaporate, and are siphoned away by vavuum pump.
In the 6th step, the insulating oil that the degassing finishes flows down from degassing circular layer bottom, is pooled to the vacuum degassing tower bottom.
The inlet pressure of spray atomizer of the present invention is greater than 0.2Mpa, and then atomizing effect is not good to be lower than this pressure, and inlet pressure is high more, and the liquid-drop diameter that the atomizing back obtains is more little.
The small fluid that spray of the present invention is atomized into drips diameter should be less than 0.2mm, otherwise sinking speed is too fast, influences degasifying effect.
The invention has the beneficial effects as follows:
The present invention compared with prior art, its remarkable advantage is: 1) space on vacuum degassing tower top is fully utilized, insulating oil begins the dehydration that outgases once getting into vacuum degassing tower; 2) insulating oil is more evenly distributed at degassing ring surface, and oil film is thinner, is convenient to fully contact with vacuum; 3) with any single degassing compared with techniques, the time that insulating oil contacts with vacuum all prolongs, and helps improving degassing efficiency; When 4) handling the insulating oil of same traffic; Vacuum degassing tower moral volume can dwindle; 5) vacuum pumping opening can move on to the top of degassing circular layer, has avoided fluid in the former technology to compile in the vacuum degassing tower bottom that foam that the back produces gets into vacuum pumping opening and the phenomenon of damaging vavuum pump.
Description of drawings
Fig. 1 is the schematic flow sheet of a kind of vacuum oil-filtering apparatus of the present invention with combined type degassing technology.
Fig. 2 is a kind of enforcement illustration of the present invention.
Fig. 3 is the another kind of illustration of implementing of the present invention.
Among Fig. 2: 1. spray atomizer, 2. mist of oil baffle plate, 3. degassing circular layer, 4. form.5. vacuum pumping opening
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
In conjunction with Fig. 1, a kind of vacuum oil-filtering apparatus of the present invention may further comprise the steps with combined type degassing technology:
The first step is injected spray atomizer with insulating oil with certain pressure;
Second step was atomized into diameter by spray atomizer with insulating oil and drips less than the small fluid of 0.2mm, to the top ejection, can adopt a plurality of spray atomizers when the insulating oil flow is big, fluid was dripped be covered with the cavity on degassing ring top in the vacuum column;
In the 3rd step, fluid drops under the gravity effect and slowly descends; In this process, fully contact with vacuum, part water and gas evaporate from fluid drips, and are siphoned away by vavuum pump;
In the 4th step, fluid forms even oil film as thin as a wafer at degassing ring surface after dripping and being deposited to degassing circular layer top;
In the 5th step, the oil film that under the gravity effect, slowly flows to degassing circular layer bottom fully contacts with vacuum, and water and gas continue from fluid drips, to evaporate, and are siphoned away by vavuum pump.
In the 6th step, the insulating oil that the degassing finishes flows down from degassing circular layer bottom, is pooled to the vacuum degassing tower bottom.
Embodiment 1
In Fig. 2; Vacuum degassing tower is a cylindrical structural; Insulating oil is atomized by spray atomizer (1) with the pressure injection of 0.2Mpa; The acquisition diameter drips less than the small fluid of 0.2mm, and a plurality of spray atomizers (1) on vacuum degassing tower top, are full of vacuum degassing tower top so that make small fluid drip with annular configuration.Oil droplet after the atomizing evenly falls under the gravity effect.Drop to degassing circular layer (3) back and form oily film on the surface of degassing ring; Realize evaporation W/O part and gas; The moisture content of evaporation and gas are extracted out outside the vacuum degassing tower by vacuum system, have mist of oil baffle plate (2) to guarantee to fall and do not extracted out by vacuum system after the oil droplet that atomizes is assembled at the vacuum pumping opening place of vacuum degassing tower.
Embodiment 2:
In Fig. 2; Vacuum degassing tower is a T shape structure; Insulating oil is atomized by spray atomizer (1) with the pressure injection of 0.2Mpa; The acquisition diameter drips less than the small fluid of 0.2mm, and a plurality of spray atomizers (1) are arranged in T type vacuum degassing tower epicoele with linearity, are full of the vacuum degassing tower epicoele so that make small fluid drip.Oil droplet after the atomizing evenly falls under the gravity effect.Converge to the degassing circular layer (3) of cavity of resorption then; Surface at degassing ring forms oily film; Realize evaporation W/O part and gas; The moisture content of evaporation and gas are extracted out outside the vacuum degassing tower by vacuum system, have mist of oil baffle plate (2) to guarantee to fall and do not extracted out by vacuum system after the oil droplet that atomizes is assembled at the vacuum pumping opening place of vacuum degassing tower.
Claims (4)
1. a vacuum oil-filtering apparatus is with combined type degassing technology, and the method that has adopted the atomizing spray degassing and thin film evaporation degassing combination to use increases the time of contact of insulating oil and vacuum, improves degassing efficiency.
2. vacuum oil-filtering apparatus according to claim 1 is characterized in that with combined type degassing technology: after insulating oil gets into vacuum degassing tower, at first carry out the atomizing spray degassing.
3. vacuum oil-filtering apparatus according to claim 1 is characterized in that with combined type degassing technology: through the insulating oil after the atomizing spray degassing, form oil film being deposited under the gravity effect on the degassing circular layer, carry out the thin film evaporation degassing.
4. vacuum oil-filtering apparatus according to claim 1 is with combined type degassing technology, and it is characterized in that: inlet had certain pressure when insulating oil carried out atomizing spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101929651A CN102462978A (en) | 2011-07-12 | 2011-07-12 | Combined type degassing technology for vacuum oil filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101929651A CN102462978A (en) | 2011-07-12 | 2011-07-12 | Combined type degassing technology for vacuum oil filter |
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| CN102462978A true CN102462978A (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101929651A Pending CN102462978A (en) | 2011-07-12 | 2011-07-12 | Combined type degassing technology for vacuum oil filter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205542A (en) * | 2013-03-27 | 2013-07-17 | 国家电网公司 | Maintenance method of vacuum quenching oil |
| CN105833570A (en) * | 2016-05-31 | 2016-08-10 | 常州大学 | Four-stage degassing method of ultrahigh-voltage power transmission transformer insulating oil |
| CN106880962A (en) * | 2017-04-21 | 2017-06-23 | 国网江苏省电力公司太仓市供电公司 | A kind of Portable oil-gas separator |
| CN108452555A (en) * | 2018-01-25 | 2018-08-28 | 广东中鹏电气有限公司 | A kind of water removal degasification method of power equipment dielectric |
| CN111097226A (en) * | 2019-11-22 | 2020-05-05 | 丁亮 | Vacuum oil filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025515A (en) * | 1983-07-20 | 1985-02-08 | Mitsubishi Heavy Ind Ltd | Apparatus for removing component dissolved in oil |
| CN2179188Y (en) * | 1993-12-11 | 1994-10-12 | 山东省电力试验研究所 | Vacuum oil-in-water separator |
| CN2233774Y (en) * | 1995-06-23 | 1996-08-28 | 电力工业部电力建设研究所 | High-efficient vacuum distillation pot |
| CN101265416A (en) * | 2007-03-16 | 2008-09-17 | 中国人民解放军后勤工程学院 | Lubricating oil composite dewatering technique |
-
2011
- 2011-07-12 CN CN2011101929651A patent/CN102462978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025515A (en) * | 1983-07-20 | 1985-02-08 | Mitsubishi Heavy Ind Ltd | Apparatus for removing component dissolved in oil |
| CN2179188Y (en) * | 1993-12-11 | 1994-10-12 | 山东省电力试验研究所 | Vacuum oil-in-water separator |
| CN2233774Y (en) * | 1995-06-23 | 1996-08-28 | 电力工业部电力建设研究所 | High-efficient vacuum distillation pot |
| CN101265416A (en) * | 2007-03-16 | 2008-09-17 | 中国人民解放军后勤工程学院 | Lubricating oil composite dewatering technique |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205542A (en) * | 2013-03-27 | 2013-07-17 | 国家电网公司 | Maintenance method of vacuum quenching oil |
| CN103205542B (en) * | 2013-03-27 | 2015-07-22 | 国家电网公司 | Maintenance method of vacuum quenching oil |
| CN105833570A (en) * | 2016-05-31 | 2016-08-10 | 常州大学 | Four-stage degassing method of ultrahigh-voltage power transmission transformer insulating oil |
| CN105833570B (en) * | 2016-05-31 | 2018-12-28 | 常州大学 | A kind of level Four degassing method of extra-high voltage electric transmission and transformation transformer insulation oil |
| CN106880962A (en) * | 2017-04-21 | 2017-06-23 | 国网江苏省电力公司太仓市供电公司 | A kind of Portable oil-gas separator |
| CN108452555A (en) * | 2018-01-25 | 2018-08-28 | 广东中鹏电气有限公司 | A kind of water removal degasification method of power equipment dielectric |
| CN108452555B (en) * | 2018-01-25 | 2020-12-08 | 广东中鹏电气有限公司 | Water and gas removing method for insulating liquid for power equipment |
| CN111097226A (en) * | 2019-11-22 | 2020-05-05 | 丁亮 | Vacuum oil filter |
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Application publication date: 20120523 |