CN103985511B - Install the transformer heat exchanger of oil cleaner additional - Google Patents

Install the transformer heat exchanger of oil cleaner additional Download PDF

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Publication number
CN103985511B
CN103985511B CN201410114251.2A CN201410114251A CN103985511B CN 103985511 B CN103985511 B CN 103985511B CN 201410114251 A CN201410114251 A CN 201410114251A CN 103985511 B CN103985511 B CN 103985511B
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oil
pipe
screen pipe
transformer
screen
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CN103985511A (en
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叶仁富
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Zhejiang Proview Electric Applicance Co Ltd
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Zhejiang Proview Electric Applicance Co Ltd
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Abstract

The invention discloses a kind of transformer heat exchanger installing oil cleaner additional, comprise cooling box and the cooling pipe being located at cooling box spiral, cooling pipe comprises the first oil inlet pipe and the first flowline that are connected with oil tank of transformer, described first oil inlet pipe and/or the first flowline are provided with filter, filter comprises tube connector, the two ends of tube connector are respectively equipped with a valve, are provided with removable filter pipe between two valves; Screen pipe comprises oil-feed screen pipe and fuel-displaced screen pipe, removably connects between fuel-displaced screen pipe and oil-feed screen pipe; Oil-feed screen pipe is provided with the screen pack of impurity screening, and screen pack is recessed to form the recess holding impurity to fuel-displaced side, and described fuel-displaced screen pipe is provided with the first permanent magnet and second permanent magnet of absorption iron filings; Jettison gear is provided with bottom screen pipe; This circulating device good cooling effect, can also filter transformer oil, protect transformer, also can pull down screen pipe and clear up, ensure not blocking channel when oil tank of transformer uses.

Description

Install the transformer heat exchanger of oil cleaner additional
Technical field
The present invention relates to field transformer, especially relate to a kind of transformer heat exchanger installing oil cleaner additional.
Background technology
Transformer in use can discharge a large amount of heats, for reducing the heat of transformer, transformer can be placed in the oil tank of transformer that transformer oil is housed, be absorbed the heat of transformer release by transformer oil, and then reduce the temperature of transformer; And in order to reduce the heat of transformer oil, heat sink also can be connected on oil tank of transformer, transformer oil is passed in heat sink and lowers the temperature.Oil tank of transformer be by polylith iron plate through polishing, knock, the mode such as welding combines, the impurity such as a large amount of iron filings can be produced in its manufacture process, and people usually only can before use with hairbrush brush several times, then use cloth to wipe with a wiping, the impurity such as iron filings cannot be removed clean.
Existing transformer oil circulation heat radiator can only play thermolysis to transformer oil, cannot remove transformer oil have in impurity, simultaneously after loading transformer oil, along with the work of heat sink, transformer oil can take the impurity motions such as the iron filings in oil tank of transformer out of, if clear up not in time, enter in transformer and can damage transformer, affect the use of transformer, even burn transformer, and oil tank of transformer in use, remove inconvenient, and the impurity such as iron filings are very many, what have is also very little, removes very difficult.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides a kind of and can lower the temperature to transformer oil and the transformer heat exchanger installing oil cleaner additional of removal of impurities.
To achieve these goals, the present invention is by the following technical solutions: a kind of transformer heat exchanger installing oil cleaner additional, establish the cooling box of coolant and the cooling pipe being located at cooling box spiral in comprising, described cooling box comprises temperature-reducing medium import and temperature-reducing medium outlet; Cooling pipe comprises the first oil inlet pipe and the first flowline that are connected with oil tank of transformer, described first oil inlet pipe and/or the first flowline are provided with filter, filter comprises tube connector, the two ends of tube connector are provided with the first valve and the second valve, are provided with removable filter pipe between this first valve and second valve; Screen pipe comprises oil-feed screen pipe and fuel-displaced screen pipe, removably connects between fuel-displaced screen pipe and oil-feed screen pipe; Oil-feed screen pipe is provided with the screen pack of impurity screening, and screen pack is recessed to form the recess holding impurity to fuel-displaced side, and described fuel-displaced screen pipe is provided with the first permanent magnet and second permanent magnet of absorption iron filings; Jettison gear is provided with bottom screen pipe.
As preferably, described oil-feed screen pipe is positioned at described screen pack oil-feed side and forms the holding tank holding and exceed the outer impurity of screen pack.
As preferably, described first permanent magnet and described second permanent magnet are arc, and are sheathed on the periphery of described fuel-displaced screen pipe.
As preferably, with described fuel-displaced screen pipe junction on described oil-feed screen pipe, be provided with cannelure along inwall one circle, described screen pack is located in this cannelure.
As preferably, also comprise control cabinet, liquid current relay, oil pump and Pressure gauge, described control cabinet is electrically connected with liquid current relay, Pressure gauge and oil pump.
As preferably, the first oil inlet pipe is provided with multiple oil-in.
As preferably, described jettison gear is sealing bolt, and described first valve and the second valve are butterfly valve.
Operation principle: described in install the circulation cooling of transformer heat exchanger for transformer oil of oil cleaner additional, the cooling-down effect that cooling box improves transformer oil is set, it is provided with filter, can also remove impurity such as the iron filings in transformer oil, described filter is provided with screen pack and permanent magnet two-filtration devices, be provided with screen pack, the impurity that oil tank of transformer inner volume is larger can be filtered out, and permanent magnet is set, the iron filings of the small size that screen pack cannot filter can be adsorbed, can automatically filter impurity such as the iron filings in oil tank of transformer, filter without the need to manual operation, and the passage that valve can control to close screen pipe two ends is set, during cleaning, only need valve-off, pull down screen pipe, cleaned out and again loaded onto again, open valve, the impurity such as iron filings are avoided to enter in transformer, damage transformer, and then transformer is served to the effect of protection, simultaneously oil tank of transformer in use also can be pulled down screen pipe and clears up, ensure not blocking channel.
In sum; the present invention has the following advantages: not only to the good cooling effect of transformer oil, can also filter thoroughly transformer oil, and then serves the effect of protection to transformer; in oil tank of transformer use procedure, also can pull down screen pipe clear up, ensure not blocking channel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is Figure 1A-A face structural representation.
Fig. 3 is filter screen structure schematic diagram of the present invention.
Fig. 4 is brace rod structural representation of the present invention.
Embodiment
In order to make those skilled in the art person better understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
As Figure 1-4, install a transformer heat exchanger for oil cleaner additional, comprise the cooling box 1 be connected with oil tank of transformer, cooling box 1 is built with temperature-reducing medium, cooling pipe is immersed in temperature-reducing medium, and described cooling box 1 comprises temperature-reducing medium import 11 and temperature-reducing medium outlet 12; Selected temperature-reducing medium is water, and in other embodiments, temperature-reducing medium can be the material that liquid nitrogen etc. has cooling-down effect; Described cooling pipe is helical structure, and by bottom cooling box 1 to cooling box roof spiral, this setting increases the contact area of transformer oil and temperature-reducing medium, cooling-down effect is better, described cooling pipe comprises the first oil inlet pipe 8 and the first flowline 9, and this first oil inlet pipe 8 is all connected with oil tank of transformer with the first flowline 9, more abundant in order to the oil in oil tank of transformer can be made to circulate, more comprehensively, described first oil inlet pipe 8 is provided with multiple oil-in in cooling.
Described first flowline 9 is provided with filter, and certainly, filter also only can be located at the first oil inlet pipe 8 or all arrange filter on the first oil inlet pipe 8 and the first flowline 9.Concrete, described filter comprises tube connector, and this tube connector comprises the second oil inlet pipe 4, second flowline and screen pipe 3, and described screen pipe 3 two ends removably connect with the second oil inlet pipe 4 and the second flowline respectively; Described screen pipe 3 comprises oil-feed screen pipe 32 and fuel-displaced screen pipe 33, described oil-feed screen pipe 32 and the second oil inlet pipe 4 removably connect, described fuel-displaced screen pipe 33 removably connects with described second flowline, removably connect between described fuel-displaced screen pipe 33 and oil-feed screen pipe 32, screen pipe is arranged to Split type structure, conveniently screen pipe is cleared up, and cleaning is more thorough; Described oil-feed screen pipe 32 and the second oil inlet pipe 4 junction are provided with oil-feed sealing ring, fuel-displaced screen pipe 33 and the second flowline junction are provided with fuel-displaced sealing ring, be provided with intermediate seal circle between fuel-displaced screen pipe 33 and oil-feed screen pipe 32, above-mentioned sealing ring be set, strengthen sealing effectiveness; Described second oil inlet pipe 4 is provided with the first valve, and the second flowline is provided with the second valve; Described first valve and the second oil inlet pipe 4 junction are provided with the first sealing ring, second valve and the second flowline junction are provided with the second sealing ring, first valve and the second valve are butterfly valve, certainly can also be break valve, gate valve etc., the opening and closing that convenience valve controls pipeline are set, sealing ring are set and enhance valve and the sealing effectiveness between oil inlet pipe and flowline.
Concrete, the connection of described second oil inlet pipe 4 and oil-feed screen pipe 32 is Flange joint, and the connection of the second flowline and fuel-displaced screen pipe 33 is Flange joint, and oil-feed screen pipe 32 is also Flange joint with the connection of fuel-displaced screen pipe 33; And the connected mode of the connected mode of the first valve and the second oil inlet pipe 4 and the second valve and the second flowline is also Flange joint, this connected mode is installed firmly, convenient disassembly.
Further, described oil-feed screen pipe 32 is provided with the screen pack 31 of impurity screening, and this screen pack can filter out the impurity such as the larger iron filings of volume, concrete, described screen pack 31 is recessed to form the recess holding impurity to fuel-displaced side, the shape of this recess can be multiple, as truncated cone-shaped, prismatic table shape etc., and in the present embodiment, described screen pack 31 is pyramidal structure, screen pack 31 comprises tip and openend, openend is oil inlet end, openend is fixed by installing ring 311 and screen pipe, installing ring 311 is provided with brace rod 312 vertically, this brace rod 312 pairs of screen packs work the effect of making, screen pack is avoided to rock because of the flowing of transformer oil, the screen pack of this shape can stop a large amount of impurity, simultaneously not blocking channel, by installing ring 311 and the integrally welded structure of oil-feed screen pipe 32, fixing screen pack can be realized, and in the present embodiment, with fuel-displaced screen pipe 33 junction on described oil-feed screen pipe 32, along inwall one circle be provided with cannelure, described installing ring 311 is located in this cannelure, when this is arranged on clean, desirable go out screen pack clear up, clear up more thorough, in order to increase impurity saturation further, the oil-feed side being positioned at screen pack 31 at described oil-feed screen pipe 32 forms holding tank 34, and this holding tank exceeds the impurity of screen pack for holding, and avoids impurity too much to block screen pipe further, jettison gear 7 is provided with bottom screen pipe 1, concrete, jettison gear 7 is located at the bottom of holding tank 34, this jettison gear 7 is sealing bolt, can also be sealing plug, after closing the first valve and the second valve, pull down jettison gear 7, the transformer oil in screen pipe 1 can be released, the dismounting of convenient screen pipe.
Concrete, described fuel-displaced screen pipe 33 is arranged with the permanent magnet 6 of absorption iron filings, this permanent magnet 6 comprises the first permanent magnet 61 and the second permanent magnet 62; Be greater than middle magnetic according to the magnetic of physical principle magnet end, be divided into two and strengthen its magnetic; In other embodiments, permanent magnet can be arranged on fuel-displaced screen pipe 33 inwall, namely on fuel-displaced screen pipe 33 inwall, arrange two holddown grooves, be then arranged in two holddown grooves respectively by the first permanent magnet 61 and the second permanent magnet 62, this arranges and can prevent permanent magnet 6 from moving with transformer oil; And in the present embodiment, described first permanent magnet 61 and the second permanent magnet 62 are all set to arc, and be sheathed on the periphery of described fuel-displaced screen pipe 33, arrange the small size iron filings that this permanent magnet energy adsorption filter screen cannot filter out, the suction iron filings of permanent magnet are effective; The present embodiment adopts the mode of installing permanent magnet to be more prone to, convenient production, and does not affect the circulation of transformer in pipeline.Further, the first permanent magnet 61 of described arc and the radian of the second permanent magnet 62 are all set to 60 °; Certainly, the radian of the first permanent magnet 61 and the second permanent magnet 62 can also be 30 °-59 ° or 61 °-150 °, and the magnetic force arranging the magnet formation in this arc range is strong, is conducive to adsorbing iron filings.
Conveniently to the supervision of transformer oil in heat abstractor, the liquid current relay 2, oil pump 81 and the Pressure gauge 82 that are also provided with control cabinet 5 and are located on the first oil inlet pipe 8, described oil pump 81 is multiple; Described liquid current relay 2 can the flow velocity of transformer oil in the temperature of measuring transformer oil and pipeline, and the data of display measurement, conveniently observes, thus impurity level in prediction screen pipe, determine whether screen pipe is cleaned again, also there is temperature feedback function simultaneously, use convenient; Oil pressure in Pressure gauge 82 in display pipes, oil pump 81 for accelerating the forced circulation of transformer oil, and then accelerates the radiating rate of transformer oil, and described control cabinet 5 is electrically connected with liquid current relay 2, Pressure gauge 82, oil pump 81; When liquid current relay 2 detects that transformer temperature is too high, high temperature signal can be sent to control cabinet 5, after control cabinet 5 receives signal, control cabinet 5 control oil pump 81 is opened, start forced circulation heat radiation, strengthen the radiating effect of transformer oil, transformer Yin Wendu can be avoided too high and burn out by fast cooling; When liquid current relay 2 detects that transformer temperature is too low, low-temperature signal can be sent to control cabinet 5, after control cabinet 5 receives signal, control cabinet 5 control oil pump 81 is closed, heat radiation circulation recovers normal, shortens the operating time of oil pump simultaneously, thus has saved electric energy.
The described circulation cooling of transformer heat exchanger for transformer oil installing oil cleaner additional, it is provided with filter, can also remove impurity such as the iron filings in transformer oil, described filter is provided with screen pack and permanent magnet two-filtration devices, screen pack is set, the impurity that oil tank of transformer inner volume is larger can be filtered out, and permanent magnet is set, the iron filings of the small size that screen pack cannot filter can be adsorbed, can automatically filter impurity such as the iron filings in oil tank of transformer, filter without the need to manual operation, and the passage that valve can control to close screen pipe two ends is set, during cleaning, only need valve-off, pull down screen pipe, cleaned out and again loaded onto again, open valve, the impurity such as iron filings are avoided to enter in transformer, damage transformer, and then transformer is served to the effect of protection, in oil tank of transformer use procedure, also can pull down screen pipe to clear up simultaneously, ensure not blocking channel.
Its filter process: when the transformer oil in oil tank of transformer carries out circulation cooling, transformer oil motion drives the impurity such as iron filings to arrive cooling pipe from the first flowline 9, dispel the heat in cooling box 1, the transformer oil after heat radiation drives impurity to enter the first oil inlet pipe 8 that filter is housed; After the impurity that volume is larger is filtered net 31 stop, be deposited in holding tank 34, the iron filings of small volume then pass screen pack 31 with transformer oil, arrive the fuel-displaced one end of screen pipe 3, by the first permanent magnet 61 and the second permanent magnet 62 adsorb, the transformer oil after metre filter is got back in oil tank of transformer; Observe the flow velocity of the transformer oil that liquid current relay 2 shows simultaneously, when transformer flow velocity is too low, need clear up filter.And when the first oil inlet pipe 8 is only located at by filter or be all located on the first oil inlet pipe 8 and the first flowline 9, similar when its filter process is only located on the first flowline to above-mentioned filter.
Scale removal process: first close the first valve and the second valve, stop the flowing of transformer oil in pipeline, then oil discharge screw of back-outing, the transformer oil in screen pipe 3 is released, turn on the sealing bolt that screen pipe 3 two ends are connected with the second oil inlet pipe 4 and the second flowline again, unload screen pipe 3; Take off permanent magnet 6, iron filings are cleaned out, then screen pipe 3 is split into oil-feed screen pipe 32 and fuel-displaced screen pipe 33, take off screen pack 31, thoroughly clean; After having cleared up, then tightened by oil discharge screw, screen pack 31 reinstalls oil-feed screen pipe 32, oil-feed screen pipe 32 is reinstalled into screen pipe 3 with fuel-displaced screen pipe 33, be connected with the second oil inlet pipe 4 and the second flowline respectively at the two ends of screen pipe 3, oil discharge screw of screwing on, completes the installation after cleaning; Reopen the first valve and the second valve, transformer oil flows through filter, and filter restarts to filter.
Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.

Claims (7)

1. one kind installs the transformer heat exchanger of oil cleaner additional, establish the cooling box of coolant (1) in comprising and be located at the cooling pipe of cooling box (1) spiral, described cooling box (1) comprises temperature-reducing medium import (11) and temperature-reducing medium outlet (12); Cooling pipe comprises the first oil inlet pipe (8) and the first flowline (9) that are connected with oil tank of transformer, it is characterized in that: described first oil inlet pipe (8) and/or the first flowline (9) are provided with filter, filter comprises tube connector, the two ends of tube connector are provided with the first valve and the second valve, are provided with removable filter pipe (3) between this first valve and second valve; Screen pipe (3) comprises oil-feed screen pipe (32) and fuel-displaced screen pipe (33), removably connects between fuel-displaced screen pipe (33) and oil-feed screen pipe (32); Oil-feed screen pipe (32) is provided with the screen pack (31) of impurity screening, screen pack (31) is recessed to form the recess holding impurity to fuel-displaced side, described fuel-displaced screen pipe is provided with the first permanent magnet (61) and second permanent magnet (62) of absorption iron filings; Screen pipe (1) bottom is provided with jettison gear (7).
2. the transformer heat exchanger installing oil cleaner additional according to claim 1, is characterized in that: described oil-feed screen pipe (32) is positioned at described screen pack (31) oil-feed side and forms the holding tank (34) holding and exceed the outer impurity of screen pack.
3. the transformer heat exchanger installing oil cleaner additional according to claim 1, it is characterized in that: described first permanent magnet (61) and described second permanent magnet (62) are arc, and be sheathed on the periphery of described fuel-displaced screen pipe (33).
4. the transformer heat exchanger installing oil cleaner additional according to claim 1, it is characterized in that: with described fuel-displaced screen pipe (33) junction on described oil-feed screen pipe (32), be provided with cannelure along inwall one circle, described screen pack (31) is located in this cannelure.
5. the transformer heat exchanger installing oil cleaner additional according to claim 1, it is characterized in that: also comprise control cabinet (5), liquid current relay (2), oil pump (81) and Pressure gauge (82), described control cabinet (5) is electrically connected with liquid current relay (2), Pressure gauge (82) and oil pump (81).
6. the transformer heat exchanger installing oil cleaner additional according to claim 1, is characterized in that: the first oil inlet pipe (8) is provided with multiple oil-in.
7. the transformer heat exchanger installing oil cleaner additional according to claim 1, it is characterized in that: described jettison gear (7) is sealing bolt, described first valve and the second valve are butterfly valve.
CN201410114251.2A 2014-03-26 2014-03-26 Install the transformer heat exchanger of oil cleaner additional Active CN103985511B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104952590B (en) * 2015-06-11 2017-01-11 国网山东省电力公司滨州市滨城区供电公司 Cooling filtration oil-immersed transformer in power supplying system
CN108916162A (en) * 2018-08-14 2018-11-30 广东水利电力职业技术学院(广东省水利电力技工学校) A kind of hydraulic oil impurity collector
CN111993146B (en) * 2020-08-24 2021-08-31 临汾市侯马经济开发区云创电子科技有限公司 Oil supply equipment for oil pump of numerical control machine tool
CN112474039B (en) * 2020-11-02 2022-10-28 长春三鼎变压器有限公司 Magnetic filtering device for purifying transformer oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203300985U (en) * 2013-05-22 2013-11-20 昆山仁仲电气自动化有限公司 Novel distribution box body
CN203300385U (en) * 2013-06-26 2013-11-20 成都昊地科技有限责任公司 Oil storage tank of transformer and with filtering function
CN203839165U (en) * 2014-03-26 2014-09-17 浙江江山特种变压器有限公司 Heat exchanger with oil purifier for transformer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002250580A (en) * 2001-02-23 2002-09-06 Isuzu Motors Ltd Cooling/washing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203300985U (en) * 2013-05-22 2013-11-20 昆山仁仲电气自动化有限公司 Novel distribution box body
CN203300385U (en) * 2013-06-26 2013-11-20 成都昊地科技有限责任公司 Oil storage tank of transformer and with filtering function
CN203839165U (en) * 2014-03-26 2014-09-17 浙江江山特种变压器有限公司 Heat exchanger with oil purifier for transformer

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Address after: 324104, Jiang He industrial corridor No. 137, Qing Lake junction, Jiangshan, Zhejiang, Quzhou

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Address before: 324104, Jiang He industrial corridor No. 137, Qing Lake junction, Jiangshan, Zhejiang, Quzhou

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