CN106706696A - Device for heating terminal of distribution transformer by using liquid metal heat conduction - Google Patents
Device for heating terminal of distribution transformer by using liquid metal heat conduction Download PDFInfo
- Publication number
- CN106706696A CN106706696A CN201611045991.0A CN201611045991A CN106706696A CN 106706696 A CN106706696 A CN 106706696A CN 201611045991 A CN201611045991 A CN 201611045991A CN 106706696 A CN106706696 A CN 106706696A
- Authority
- CN
- China
- Prior art keywords
- distribution transformer
- liquid metal
- housing
- heater
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
Abstract
The invention discloses a device for heating a terminal of a distribution transformer by using liquid metal heat conduction. The device comprises a shell, and is characterized in that heating plates are arranged on the inner walls of the side faces of the shell; the heating plates are respectively connected with a temperature sensor arranged on the outer wall of the side face of the shell, and the temperature sensors are connected with a temperature controller by optical cables; an injection hole and a first terminal hole are formed in the upper end face of the shell; a discharge hole and a second terminal hole corresponding to the first terminal hole are formed in the lower end face of the shell; a liquid metal heat conduction agent can realize rapid temperature rise, so that the test waiting time is shortened, and the test efficiency is increased; a display device arranged on the temperature controller is used for visualizing the temperature, so that the temperature is clearly and accurately displayed.
Description
Technical field
The present invention relates to electric power system power distribution Transformer Winding material discrimination field, more particularly to one kind utilizes liquid metal
The heater of distribution transformer terminal is realized in heat conduction.
Background technology
In recent years, the manufacturer of distribution transformer usually replaces copper winding to save manufacturer using aluminium winding in power network
Cost.Aluminium winding transformer is higher compared to the loss of copper winding transformer, and stability is poor, and the life-span does not reach target, power network
The winding wood properly test problem of middle distribution transformer becomes increasingly conspicuous.With the development of distribution transformer winding wood properly test technology,
Judge that the lossless detection method of the winding material of distribution transformer is increasingly mature using pyroelectric effect.By the heat of unlike material
The difference of electrical effect coefficient, copper winding and aluminium winding transformer can produce different size of thermoelectrical potential, by prolonged technology
Research finds that the thermoelectrical potential difference of copper winding and aluminium winding is very notable, to the winding material discrimination accuracy rate of distribution transformer
Have been able to reach more than 95%.Winding one end must be carried out in the experiment of pyroelectric effect discriminating distribution transformer winding material
Quick heating, simultaneously because test of many times needs quick cooling/heating apparatus again, shortens the test period as far as possible.And for difference
The requirement of the transformer heating power of model is different, and the distribution transformer requirement to Large Copacity is quickly heated, and not
Infringement can be produced to the quality of distribution transformer.
Heater currently used for distribution transformer copper winding and aluminium winding Non-Destructive Testing is a fixed screw thread model
Steel heater, thermal contact conductance is carried out by the terminal of steel and copper material, heat transfer efficiency is very low, is warming up to needed for experiment
180 DEG C need one more than hour, and temperature fall time is also up to one more than hour, and the test period is more long.
The content of the invention
Goal of the invention of the invention is to provide the heating that a kind of utilization liquid metal for conducting heat realizes distribution transformer terminal
Device, can quickly heat distribution transformer terminal, and then complete the discriminating of distribution transformer winding material.
Embodiments in accordance with the present invention, there is provided a kind of utilization liquid metal for conducting heat realizes the heating of distribution transformer terminal
Device, the heater 3 includes housing 31, and the side inner walls of the housing 31 are provided with heating plate 34, the heating plate 34
In the temperature sensor 38 of the side outer wall of housing 31, the temperature sensor 38 connected connect setting by optical cable 5 with temperature controller 2
Connect, the upper surface of the housing 31 is provided with hand-hole and first end sub-aperture 35, and the lower surface 32 of the housing is provided with discharge
Hole 33 and the Second terminal hole 39 corresponding with the first end sub-aperture 35.
Preferably, the side inner walls of the housing 31 are oppositely arranged two heating plates 34.
Preferably, the temperature controller 2 is provided with display.
Preferably, the lower surface 32 of the housing is resin material.
Preferably, the heating power of the heating plate 34 is more than 1000W/h.
Preferably, the upper surface of the side of the housing 31 and the housing 31 is stainless steel.
Preferably, the lower surface 32 of the housing is square.
From above technical scheme, one kind that the present invention is provided realizes distribution transformer terminal using liquid metal for conducting heat
Heater, for quick heating distribution transformer terminal, and then realize the heating to winding, complete right using electrocaloric effect
The discriminating of distribution transformer winding material.Liquid metal for conducting heat agent can be realized being rapidly heated, and reduce the experiment stand-by period, improve
Test efficiency；Display is set on temperature controller by temperature-visualized, clear accurate displays temperature.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the heating dress that a kind of utilization liquid metal for conducting heat provided in an embodiment of the present invention realizes distribution transformer terminal
The structural representation put；
Fig. 2 is the heating dress that a kind of utilization liquid metal for conducting heat provided in an embodiment of the present invention realizes distribution transformer terminal
Put the structural representation of use state；
Fig. 3 is the heating dress that a kind of utilization liquid metal for conducting heat provided in an embodiment of the present invention realizes distribution transformer terminal
The flow chart of the application method put.
In figure：1- distribution transformers, 2- temperature controllers, 3- heaters, 4- distribution transformer terminals, 5- cables, 31- shells
Body, the lower surface of 32- housings, 33- taps, 34- heating plates, 35- first end sub-aperture, 36- liquid metal for conducting heat agent, 37- notes
Enter hole, 38- temperature sensors, 39- Second terminals hole.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Distribution transformer, to refer to and transmit friendship for converting alternating voltage and electric current according to the law of electromagnetic induction in distribution system
Flow a kind of static electrical equipment of electric energy.Chinese power transformer product generally can be divided into extra-high voltage (750KV and more than), super by voltage class
High pressure (500KV) transformer, 220-110KV transformers, 35KV and following transformer.Distribution transformer typically refers to operate in matches somebody with somebody
Voltage class is that 10-35KV, capacity are 6300KVA and the power transformer powered to terminal user directly below in power network.
As described in Figure 1, a kind of utilization liquid metal for conducting heat provided in an embodiment of the present invention realizes distribution transformer terminal
Heater, the heater 3 includes housing, and the side inner walls of the housing are provided with heating plate 34, the heating plate 34
In the temperature sensor 38 of the side outer wall of housing, the temperature sensor 38 connected connect setting by optical cable 5 with temperature controller 2
Connect, the upper surface of the housing is provided with hand-hole and first end sub-aperture 35, and the lower surface 32 of the housing is provided with tap
33 and the Second terminal hole 39 corresponding with the first end sub-aperture 35.
The operation principle of the present embodiment is：Temperature needed for being set on the temperature controller 2, the temperature controller 2 is according to required
Heating plate 34 is heated described in temperature control, and liquid metal for conducting heat agent is loaded in the housing 31, and heating plate 34 transmits heat energy
To in liquid metal for conducting heat agent, heated in the immersion liquid metal for conducting heat agent of distribution transformer terminal 4.
As shown in figure 3, the use flow of the present embodiment is：
Step 301：The heater 3 is sleeved on institute by the first end sub-aperture 35 and the Second terminal hole 39
State on distribution transformer terminal 4, the heater 3 is fixed on the distribution transformer 1；
Step 302：The tap 33 on the lower surface 32 of the housing is blocked with stopple；
Step 303：Liquid metal for conducting heat agent is injected inside the housing 31 by the hand-hole 37, the liquid gold
The thermal conductivity for belonging to thermal conducting agent is up to 365W/mK, and the liquid metal of liquid phase is kept in the range of 15 DEG C -600 DEG C；
Step 304：The temperature controller 2 is powered, the temperature controller 2 is opened and is adjusted to required temperature, make the heating plate
34 heating；
Step 305：The temperature controller 2 is closed, the temperature controller 2 is powered off；
Step 306：The stopple in the tap 33 is removed, the liquid metal for conducting heat agent is reclaimed；
Step 307：The heater 3 being sleeved on the distribution transformer terminal 4 is pulled down, by the heater
The liquid metals thermal conducting agent of 3 internal residual of the housing 31 is cleaned out.
From above technical scheme, one kind that the present invention is provided realizes distribution transformer terminal using liquid metal for conducting heat
Heater, for quick heating distribution transformer terminal, and then realize the heating to winding, complete right using electrocaloric effect
The discriminating of distribution transformer winding material.Liquid metal for conducting heat agent can be realized being rapidly heated, and reduce the experiment stand-by period, improve
Test efficiency；Display is set on temperature controller by temperature-visualized, clear accurate displays temperature.
Preferably, the side inner walls of the housing 31 are oppositely arranged two heating plates 34, two heating plates 34
Intensification efficiency can be improved to carrying out rapid convective heating inside the housing 31.
Preferably, the temperature controller 2 is provided with display, by temperature-visualized, clear accurate displays temperature.
Preferably, the lower surface 32 of the housing is resin material, and resin material has good elasticity, can seal institute
State the space between distribution transformer terminal 4 and the housing 31.
Preferably, the heating power of the heating plate 34 is more than 1000W/h.
Preferably, the upper surface of the side of the housing 31 and the housing 31 is stainless steel, can use resistance to height
Warm stainless steel, can be with more than 800 DEG C of heatproof.
Preferably, the lower surface 32 of the housing is square, improves the mounting stability of the heater 3.
Alternatively, temperature sensor can be thermistor (temperature) sensor, and thermistor (temperature) sensor volume is very small, and temperature is become
The response of change is also fast, can stablize quickly, does not result in heat load.
Those skilled in the art considering specification and after putting into practice invention disclosed herein, will readily occur to it is of the invention its
Its embodiment.The application is intended to any modification of the invention, purposes or adaptations, these modifications, purposes or
Person's adaptations follow general principle of the invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture being described above and be shown in the drawings, and
And can without departing from the scope carry out various modifications and changes.The scope of the present invention is only limited by appended claim.
Claims (7)
1. a kind of utilization liquid metal for conducting heat realizes the heater of distribution transformer terminal, and the heater (3) is including shell
Body (31), it is characterised in that the side inner walls of the housing (31) are provided with heating plate (34), heating plate (34) connection sets
The temperature sensor (38) in the side outer wall of housing (31) is put, the temperature sensor (38) is by optical cable (5) and temperature controller
(2) connect, the upper surface of the housing (31) is provided with hand-hole and first end sub-aperture (35), the lower surface (32) of the housing
It is provided with tap (33) and the Second terminal hole (39) corresponding with the first end sub-aperture (35).
2. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the side inner walls of the housing (31) are oppositely arranged two heating plates (34).
3. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the temperature controller (2) is provided with display.
4. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the lower surface (32) of the housing is resin material.
5. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the heating power of the heating plate (34) is more than 1000W/h.
6. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the side of the housing (31) and the upper surface of the housing (31) are stainless steel.
7. a kind of utilization liquid metal for conducting heat according to claim 1 realizes the heater of distribution transformer terminal, its
It is characterised by, the lower surface (32) of the housing is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045991.0A CN106706696A (en) | 2016-11-22 | 2016-11-22 | Device for heating terminal of distribution transformer by using liquid metal heat conduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045991.0A CN106706696A (en) | 2016-11-22 | 2016-11-22 | Device for heating terminal of distribution transformer by using liquid metal heat conduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706696A true CN106706696A (en) | 2017-05-24 |
Family
ID=58934752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611045991.0A Pending CN106706696A (en) | 2016-11-22 | 2016-11-22 | Device for heating terminal of distribution transformer by using liquid metal heat conduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108430125A (en) * | 2018-03-09 | 2018-08-21 | 广州供电局有限公司 | A kind of non-contact nonstorage calorifier of distribution transformer terminal high frequency and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204575578U (en) * | 2015-05-12 | 2015-08-19 | 西安国联质量检测技术有限公司 | A kind of Multifunction low-temperature test instrument |
| CN205299913U (en) * | 2016-01-15 | 2016-06-08 | 杭州杰富睿科技有限公司 | Drinking water heating device |
| CN205545987U (en) * | 2016-03-30 | 2016-08-31 | 重庆市九升检测技术有限公司 | Explosion -proof electron accuse temperature heater |
| CN106093651A (en) * | 2016-07-05 | 2016-11-09 | 国网重庆市电力公司电力科学研究院 | A kind of transformator temperature rise device and method realizing winding two ends temperature contrast |
| CN206208804U (en) * | 2016-11-22 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of utilization liquid metal for conducting heat realizes the heater of distribution transformer terminal |
-
2016
- 2016-11-22 CN CN201611045991.0A patent/CN106706696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204575578U (en) * | 2015-05-12 | 2015-08-19 | 西安国联质量检测技术有限公司 | A kind of Multifunction low-temperature test instrument |
| CN205299913U (en) * | 2016-01-15 | 2016-06-08 | 杭州杰富睿科技有限公司 | Drinking water heating device |
| CN205545987U (en) * | 2016-03-30 | 2016-08-31 | 重庆市九升检测技术有限公司 | Explosion -proof electron accuse temperature heater |
| CN106093651A (en) * | 2016-07-05 | 2016-11-09 | 国网重庆市电力公司电力科学研究院 | A kind of transformator temperature rise device and method realizing winding two ends temperature contrast |
| CN206208804U (en) * | 2016-11-22 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of utilization liquid metal for conducting heat realizes the heater of distribution transformer terminal |
Non-Patent Citations (1)
| Title |
|---|
| 陈石胜, 北京国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108430125A (en) * | 2018-03-09 | 2018-08-21 | 广州供电局有限公司 | A kind of non-contact nonstorage calorifier of distribution transformer terminal high frequency and method |
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