CN201421238Y - Flash evaporation type vapor phase drying device - Google Patents
Flash evaporation type vapor phase drying device Download PDFInfo
- Publication number
- CN201421238Y CN201421238Y CN2009200146648U CN200920014664U CN201421238Y CN 201421238 Y CN201421238 Y CN 201421238Y CN 2009200146648 U CN2009200146648 U CN 2009200146648U CN 200920014664 U CN200920014664 U CN 200920014664U CN 201421238 Y CN201421238 Y CN 201421238Y
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- vacuum tank
- drying device
- phase drying
- tank
- vapor phase
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Abstract
The utility model provides a flash evaporation type vapor phase drying device, aiming at solving the problems that a special anti-explosion chamber is needed to be built for an external evaporator, sothat the a great deal of technological kerosene can be used; and an internal evaporator is needed to be arranged inside a vacuum tank, so as to occupy the internal space of the vacuum tank. The flashevaporation type vapor phase drying device has the key points that a liquid feeding pipeline of a medium liquid storage tank is sequentially provided with a pump, a heater and a decompression nozzleto an air inlet end of the vacuum tank; after passing through a condenser, an air outlet end of the vacuum tank is divided into two pipelines, one of which is connected with a vacuum pump, and the other one is connected with the medium liquid storage tank; and a liquid return pipeline of the vacuum tank is connected with the medium liquid storage tank. The device has the advantages that the volumeof the vapor phase drying device is greatly reduced, and the safety thereof is higher; furthermore, the device is not only applicable to being fixedly installed in a factory, but also suitable for mobile use, and provides effective drying treatment for on-site maintenance of a large power transformer.
Description
Technical field
The utility model relates to the widely used a kind of vapour phase drying device of transformer industry, is a kind of Flash Type vapour phase drying device specifically.
Background technology
All be based on the principle of distillation at present at the widely used vapour phase drying device of transformer industry.Vapour phase drying device is divided into external evaporimeter and two kinds of structures of built-in evaporator.Generally all need the bigger evaporimeter of volume for reaching required evaporation power.External evaporimeter need be built special explosion-proof cell, and technology kerosene consumption is big; Built-in evaporator need place in the vacuum tank, take the inner usage space of vacuum tank.These two kinds of evaporimeters all can cause the evaporimeter volume of vapour phase drying device bigger, can only be applicable to that generally fixed installation is used in the factory, are difficult to adapt to the requirement that vapour phase drying device moves use.
Summary of the invention
For solving these drawbacks of present vapour phase drying device, the purpose of this utility model is to provide a kind of Flash Type vapour phase drying device.
The purpose of this utility model is achieved in that its principle based on flash distillation, the principle of flash distillation is, the heater of sending into that dielectric fluid is continuous is heated to certain temperature, be decompressed to predetermined pressure through pressure-reducing valve then and enter vacuum tank, because pressure reduces, media fluid becomes overheated vaporization suddenly because of boiling point descends, and the vaporization heat dissipation makes fluid temperature descend, vapour, liquid two-phase temperature reach unanimity, and two phase compositions tend to balance.
The last liquid pipeline of media fluid holding vessel (to call fluid reservoir in the following text) sets gradually pump, heater and decompression nozzle, inlet end to vacuum tank, the outlet side of vacuum tank is divided into the two-way pipeline after by condenser, one road pipeline connects vavuum pump, another road pipeline connects fluid reservoir, and the liquid back pipe line of vacuum tank connects fluid reservoir.Using method is, at first the transformer that will handle is put in the vacuum tank, secondly vacuum tank is vacuumized, and opens the last liquid pipeline of fluid reservoir thereafter, media fluid is through heating, decompression, enter vacuum tank, because pressure reduces, the boiling point of media fluid descends thereupon, become overheated and vaporization suddenly, transformer is heated, at the bottom of steam discharges and becomes liquid behind the heat mutually and flow to jar, return fluid reservoir with the media fluid at the bottom of directly the falling jar of vaporization not.Simultaneously the water vapour that evaporates of TRANSFORMER INSULATING MATERIAL and uncooled dielectric fluid steam enter and become liquid behind the condenser and return fluid reservoir.One-period finishes, and enters next cycle, and until reaching predetermined technological parameter, last, vapour-phase system quits work, and closes all valves of vacuum tank, opens main vacuum valve, restarts main vacuum system, and vacuum tank is vacuumized.
Compared with prior art, the beneficial effects of the utility model are: the volume of vapour phase drying device is reduced greatly, security is higher, be not only applicable to fixed installation use in the factory, more be applicable to the mobile use of vapour phase drying device, handle for the field maintenance of large-scale power transformer provides effective dry.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing is a schematic diagram of the present utility model.
The specific embodiment
Above-mentioned said media fluid is the special-purpose kerosene (hereinafter to be referred as kerosene) of vapour phase drying device, the media fluid holding vessel is a kerosene surge tank 386, the upper level of kerosene holding vessel is a kerosene holding vessel 009, two jars of series connection, the last oil pipeline of kerosene surge tank sets gradually canned motor pump 332, the decompression nozzle 391-393 of Kerosene heater 380 and three parallel connections, inlet end to vacuum tank 280, the outlet side of vacuum tank is divided into the two-way pipeline after by condenser 170, one road pipeline connects the vavuum pump of three parallel connections, the vavuum pump of three parallel connections is respectively two forepumps 231,232, and holding vacuum pump 131, another road pipeline is through subcooling condensate collecting tank 180, canned motor pump 331 connects the kerosene surge tank, and the liquid back pipe line of vacuum tank connects the kerosene surge tank through canned motor pump 335.Using method had with the next stage,
Preparatory stage: at first the transformer that will handle is put in the vacuum tank, and next is opened vavuum pump vacuum tank is evacuated to below the 700Pa;
Heating period: the last oil pipeline of opening the kerosene surge tank, kerosene is through heating, decompression, enter vacuum tank, because pressure reduces, the boiling point of kerosene descends thereupon, become overheated and suddenly the vaporization, transformer is heated, at the bottom of steam discharges and becomes liquid behind the heat mutually and flow to jar, return the kerosene surge tank with the kerosene at the bottom of directly the falling jar of vaporization not.Simultaneously the steam that evaporates of TRANSFORMER INSULATING MATERIAL and uncooled kerosene steam enter condenser and become liquid return the kerosene surge tank behind the condensate liquid collecting tank.A circulation finishes, and enters next circulation.
Buck stage: when the kerosene steam in the vacuum tank and other gaseous mixture returned through main condenser 170, system vacuumized by holding pump, and the kerosene that remains in the insulating materials is evaporated again, sends the kerosene surge tank back to behind condenser condenses, condensate liquid collecting tank.When the vacuum of vacuum tank reaches 2.5kPa, buck stage finishes.
High vacuum stage of Fig: vapour-phase system quits work, and closes all valves of vacuum tank, opens main vacuum valve, restarts main vacuum system, and vacuum tank is vacuumized.Final pressure will reach below the 50Pa.
In the accompanying drawing, 238 is Roots vaccum pump, and 332 for carrying the canned motor pump of kerosene, and 271 is the vacuum system interconderser, 385 is cooler, 382 kerosene fine filters.
Claims (2)
1, a kind of Flash Type vapour phase drying device, it is characterized in that: the last liquid pipeline of media fluid holding vessel sets gradually pump, heater and decompression nozzle, inlet end to vacuum tank, the outlet side of vacuum tank is divided into the two-way pipeline after by condenser, one road pipeline connects vavuum pump, another road pipeline connects the media fluid holding vessel, and the liquid back pipe line of vacuum tank connects the media fluid holding vessel.
2, according to the described Flash Type vapour phase drying device of claim 1, it is characterized in that: said media fluid holding vessel kerosene surge tank, between condenser and media fluid holding vessel, be provided with condensate liquid collecting tank and canned motor pump successively, the decompression nozzle that said decompression nozzle is three parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200146648U CN201421238Y (en) | 2009-06-19 | 2009-06-19 | Flash evaporation type vapor phase drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200146648U CN201421238Y (en) | 2009-06-19 | 2009-06-19 | Flash evaporation type vapor phase drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421238Y true CN201421238Y (en) | 2010-03-10 |
Family
ID=41807897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200146648U Expired - Lifetime CN201421238Y (en) | 2009-06-19 | 2009-06-19 | Flash evaporation type vapor phase drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421238Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210271A (en) * | 2011-09-12 | 2013-07-17 | Abb技术有限公司 | Vapour phase drying apparatus |
| CN111829298A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Jet evaporation vapor phase drying equipment |
| CN111829299A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
| CN114147313A (en) * | 2021-11-24 | 2022-03-08 | 合肥恒力装备有限公司 | Device for realizing high temperature uniformity of vacuum reflow soldering and processing method thereof |
-
2009
- 2009-06-19 CN CN2009200146648U patent/CN201421238Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210271A (en) * | 2011-09-12 | 2013-07-17 | Abb技术有限公司 | Vapour phase drying apparatus |
| CN111829298A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Jet evaporation vapor phase drying equipment |
| CN111829299A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
| CN111829299B (en) * | 2020-07-14 | 2023-10-27 | 沈阳诚桥真空设备有限公司 | Solvent spray vapor phase drying method, equipment and system |
| CN114147313A (en) * | 2021-11-24 | 2022-03-08 | 合肥恒力装备有限公司 | Device for realizing high temperature uniformity of vacuum reflow soldering and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100310 |