CN208690084U - Paper oil insulation temperature self-adaptation rod-pulling type casing - Google Patents
Paper oil insulation temperature self-adaptation rod-pulling type casing Download PDFInfo
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- CN208690084U CN208690084U CN201821393817.XU CN201821393817U CN208690084U CN 208690084 U CN208690084 U CN 208690084U CN 201821393817 U CN201821393817 U CN 201821393817U CN 208690084 U CN208690084 U CN 208690084U
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- pull rod
- rod
- pulling type
- temperature self
- contact tube
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Abstract
The utility model relates to a kind of paper oil insulation temperature self-adaptation rod-pulling type casings, it is concatenated by junction block, contact tube and lower end connecting terminal, it forms current-carrying structures, contact tube and lower end connecting terminal and forms electrical contact and connection by being set to the tightening force of the pull rod inside contact tube；Pull rod includes upper section pull rod and lower section pull rod two parts, and upper section pull rod and lower section pull rod are connected or disconnected by connector；Upper section pull rod upper end is equipped with pull rod connecting hole, and the tension tooling connection when internal thread hole and transformer assembling of pull rod connecting hole, external screw thread is externally provided with nut, pressing plate, butterfly spring and contact tube are formed and compress connection.The utility model is using efficient simple and direct mounting means, the power transformer that effectively shortens assembles duration, reduces the body exposure aerial time, and then insulating part damp degree is reduced, reinforce transformer insulated performance, and itself there are the main performances such as good insulation, sealing and mechanical strength.
Description
Technical field
The utility model relates to a kind of casing, specially a kind of paper oil insulation temperature self-adaptation rod-pulling type casing.
Background technique
As the construction of the various large-scale networked engineerings of electric system is carried out, the system of super-pressure, EHV power transformer
Doing influence of the quality to system run all right seems further important.And the reasonable structure of power transformer casing is in very great Cheng
To play particularly important role in the production of power transformer and operational process on degree.This influence is mainly reflected in two
Aspect: first is that in power transformer production process, it is sudden and violent that the mounting means and duration of casing will have a direct impact on transformer body
Reveal the aerial time, and then the damp degree and electric strength of insulating part are impacted；On the other hand, cannula structure
Reasonability has very big influence to the performance of its own, as the Oil-impregnated Paper Condenser Bushing in History that electric system is most widely used,
Direct or indirect failure proportion in the system failure caused by due to the performances such as its insulation, sealing and mechanical strength are insufficient
It is very considerable.
Power transformer assembling process is general are as follows: the body Jing Guo well dried process is hung in fuel tank first, so
Assemble other group parts such as casing afterwards, during Build Group Component, oil tank of transformer be in unclosed state, assembly casing lead
When also need operator to enter fuel tank to carry out wiring, this process will cause the dampness and pollution of built-in electrical insulation to a certain extent,
There is important shadow to product integral insulation performance, transformer assembling duration, operation stability and the operational safety of electric system
It rings.
In summary, it develops a kind of convenient for power transformer assembly and the good Oil-impregnated Paper Condenser Bushing in History structure of self performance
It is particularly significant to electric system especially super-pressure, the safe operation of extra-high voltage system.
Utility model content
For power transformer casing in the prior art to transformer assembling duration, operation stability and electric system
Operational safety has the deficiencies of great influence, and the technical problem to be solved by the present invention is to provide one kind to have using efficiently letter
Prompt mounting means, the power transformer that effectively shortens assemble duration, the paper oil insulation temperature self-adaptation rod-pulling type with superperformance
Casing.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of paper oil insulation temperature self-adaptation rod-pulling type casing of the utility model, by junction block, contact tube and lower termination
Line terminals concatenate, and form current-carrying structures, contact tube and lower end connecting terminal and pass through the drawing of the pull rod inside contact tube
Clamp force forms electrical contact and connection.
Pull rod includes upper section pull rod and lower section pull rod two parts, and upper section pull rod is connected or broken by connector with lower section pull rod
It opens；Upper section pull rod upper end is equipped with pull rod connecting hole, and the tension tooling when internal thread hole and transformer assembling of pull rod connecting hole connects
It connects, external screw thread is externally provided with nut, and pressing plate, butterfly spring and contact tube are formed and compress connection.
Lower section pull rod bottom end and lower end connecting terminal are affixed.
Guide cone is equipped in lower part connecting terminal top, lower section pull rod lower position.
Connector is internal thread connecting piece.
Also there is interior insulation system and external insulation structure, wherein external insulation structure is insulation sleeve, is set to jacket exterior；It is interior exhausted
Edge structure is the capacitor core and transformer oil rolled on contact tube.
Jacket exterior includes that oil collection box, insulation sleeve, mounting flange, lower ceramic part and pedestal successively install composition from top to bottom
Confined space equipped with transformer oil.
It is configured between oil collection box upper end and junction block, between the adjacent components such as oil collection box, insulation sleeve, lower ceramic part and pedestal close
Seal washer.
The utility model has the advantages that and advantage:
1. the utility model, using efficient simple and direct mounting means, the power transformer that effectively shortens assembles duration, reduces body
The exposure aerial time, and then insulating part damp degree is reduced, reinforce transformer insulated performance, and itself have good
The main performances such as insulation, sealing and mechanical strength.
Caused by 2. the utility model can effectively avoid traditional sleeve and transformer difficult dress and lead connection procedure
Assembly duration is excessive, and body after drying makes moist and then influences the defect of transformer insulated performance, simultaneously because the work of pull rod
It is increased outside seat with lead linker when will assemble by being transferred in oil tank of transformer, can effectively avoid entering because of assembly crewman
Fuel tank and caused by the hidden danger that is destroyed of built-in electrical insulation cleanliness.
3. the butterfly spring active force in the utility model tie system to be formed between tail end connecting terminal and copper conductor tube
Good electrical connection, has ensured the current-carrying capability of casing, while playing reinforcement to the sealing system and mechanical strength of casing entirety
Effect, can effectively avoid oily formula casing due to sealing effect is bad caused by oil leak or built-in electrical insulation dampness etc. so that insulate
Performance impairment and cause the security risks such as discharge fault.
4. the tension effect of pull rod is realized by one group of butterfly spring structure in the utility model, and butterfly spring has and makes
With flexible characteristic, the size of required pulling force can be calculated according to various aspects factors such as different use occasions, different casing lengths,
And the size of required pulling force is precisely realized with the different number of butterfly spring, various combination, ensure performance while again energy
Accomplish the efficient utilization of material；Spring is while providing pulling force simultaneously, when can effectively absorb temperature change because of copper conductor and
Reinforcing pull rod thermal expansion character it is different and caused by relative displacement so that the use of casing tension system is not affected by temperature.
Detailed description of the invention
Fig. 1 is paper oil insulation temperature self-adaptation rod-pulling type cannula structure schematic diagram；
Fig. 2 is paper oil insulation temperature self-adaptation rod-pulling type casing mounting means schematic diagram.
Wherein, 1 is junction block, and 2a~2e is the first~five seal washer, and 3 be oil collection box, and 4 be insulation sleeve, and 5 be transformer
Oil, 6 be capacitor core, and 7 be mounting flange, and 8 be lower ceramic part, and 9 be pedestal, and 10 be lower end connecting terminal, and 11 be pull rod connecting hole,
12 be nut, and 13 be butterfly spring, and 14 be pressing plate, and 15 be pull rod, and 16 be attachment device, and 17 be contact tube, and 18 be pull-cord,
19 be cable connection device, and 20 be upper section pull rod, and 21 be lower section pull rod, and 22 be transformer lead and connecting terminal, and 23 be guidance
Cone.
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawings of the specification.
As shown in Figure 1, a kind of paper oil insulation temperature self-adaptation rod-pulling type casing of the utility model, by junction block 1, contact tube
17 and lower end connecting terminal 10 concatenate, form current-carrying structures, contact tube 17 and lower end connecting terminal 10, which pass through, is set to contact tube
The tightening force of pull rod 15 inside 17 forms electrical contact and connection.
As shown in Fig. 2, pull rod 15 includes upper section pull rod 20 and lower 21 two parts of section pull rod, upper section pull rod 20 and lower section pull rod
21 are connected or disconnected by connector 16；Upper 20 upper end of section pull rod is equipped with pull rod connecting hole 11, the internal screw thread of pull rod connecting hole 11
Hole is connect with the tension tooling (pull-cord 18) when transformer assembling, and external screw thread is externally provided with nut 12, by pressing plate 14, butterfly
Spring 13 and contact tube 17, which are formed, compresses connection；Lower 21 bottom end of section pull rod and lower end connecting terminal 10 are affixed；.Connector 16 is interior
Threaded connector；In lower part, 10 top of connecting terminal, lower 21 lower position of section pull rod are equipped with guide cone.
The utility model also has interior insulation system and external insulation structure, and wherein external insulation structure is insulation sleeve 4, is set to set
Outside pipe；Interior insulation system is the capacitor core 6 and transformer oil 5 rolled on contact tube 17.
Jacket exterior includes oil collection box 3, insulation sleeve 4, mounting flange 7, lower ceramic part 8 and pedestal 9 from top to bottom, above-mentioned each
Component successively installs the confined space for constituting and transformer oil being housed.
Sealing is configured between the adjacent components such as junction block 1, oil collection box 3, oil collection box 3, insulation sleeve 4, lower ceramic part 8 and pedestal 9
Washer.
In the present embodiment, adaptive rod-pulling type casing current-carrying conductor, that is, contact tube 17 is copper pipe structure, with transformer lead
The terminal of connection realizes good electrical connection by the tensioning function of pull rod 15 between contact tube 17.
The copper pipe structure inner space of contact tube 17 configures steel pull rod 15,15 bottom end of pull rod and 10 phase of lower end connecting terminal
Even, upper end forms machinery by one group of strength butterfly spring 13, pressing plate 14, insulating washer and nut 12 and 15 upper end of contact tube
Connection；Pull rod 15 is configuring connector 16 close to the position of casing mounting flange 17, enables pull rod 15 at this according to dress
It is turned off with work requirements and attended operation, active force is provided by compressed butterfly spring 13 therebetween；
15 main structure of pull rod is steel material.
When using the utility model casing assembling transformer, pull rod 20,21 will be first saved above and below and will be disconnected at connector 16,
Lower section extension bar 21 is connected before body nowel or even before drying process with body lead together with lower end connecting terminal 10, assembly set
Guan Shi, using pull-cord 18 by upper section pull rod 20 from casing part expose, and when casing is close to transformer with lower section pull rod
21 connections, casing nowel pass through simultaneously pull-cord 18 will under section pull rod 21 together with lower end connecting terminal 10 and coupled
Lead 22 and sleeve body assemble, guide cone 23 can ensure between lower end connecting terminal 10 and contact tube 17 in blind dress feelings
It is still accurate under condition, so that mounting means is simple and direct.
Butterfly spring 13 in pull rod 15 is when effectively absorbing temperature change because of 17 thermal expansion coefficient of pull rod 15 and contact tube
It is different and caused by relative displacement while, the elastic force of itself has been applied in casing integral sealing and mechanical connection system,
Booster action is played to performances such as sealing, mechanical strengths, caused by effectively avoiding due to sealing, mechanical performance are insufficient
The generation of the failures such as oil leak, interior insulation dampness, electric discharge.
The utility model can realize assembly people by using the correlation function of tie system in transformer assembling casing
Without entering oil tank of transformer, casing assembly duration significantly reduces member, so that transformer body exposure is aerial
Time effectively shortens, and humidified insulation, contaminated probability are greatly lowered, and integrally improves transformer insulated performance；And itself
With main performances such as good insulation, sealing and mechanical strengths, casing itself makes self seal because increasing tie system
Energy, insulation performance and mechanical strength etc. get a promotion, and largely effectively promote the operational reliability of electric system.
Claims (8)
1. a kind of paper oil insulation temperature self-adaptation rod-pulling type casing, it is characterised in that: by junction block, contact tube and lower terminated line
Terminal concatenates, and forms current-carrying structures, contact tube and lower end connecting terminal and passes through the tension of the pull rod inside contact tube
Power forms electrical contact and connection.
2. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 1, it is characterised in that: pull rod includes upper section
Pull rod and lower section pull rod two parts, upper section pull rod and lower section pull rod are connected or disconnected by connector；Upper section pull rod upper end is equipped with
Pull rod connecting hole, the tension tooling connection when internal thread hole and transformer assembling of pull rod connecting hole, external screw thread are externally provided with nut,
Pressing plate, butterfly spring and contact tube are formed and compress connection by it.
3. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 2, it is characterised in that: lower section pull rod bottom end
It is affixed with lower end connecting terminal.
4. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 3, it is characterised in that: in lower part terminals
Sub- top, lower section pull rod lower position are equipped with guide cone.
5. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 2, it is characterised in that: connector is interior spiral shell
Line connector.
6. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 1, it is characterised in that: also have interior insulation
Structure and external insulation structure, wherein external insulation structure is insulation sleeve, is set to jacket exterior；Interior insulation system is to roll in contact tube
On capacitor core and transformer oil.
7. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 1, it is characterised in that: jacket exterior is from upper
And lower successively install including oil collection box, insulation sleeve, mounting flange, lower ceramic part and pedestal constitutes the confined air that transformer oil is housed
Between.
8. paper oil insulation temperature self-adaptation rod-pulling type casing according to claim 7, it is characterised in that: oil collection box upper end with
Seal washer is configured between junction block, between the adjacent components such as oil collection box, insulation sleeve, lower ceramic part and pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393817.XU CN208690084U (en) | 2018-08-28 | 2018-08-28 | Paper oil insulation temperature self-adaptation rod-pulling type casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393817.XU CN208690084U (en) | 2018-08-28 | 2018-08-28 | Paper oil insulation temperature self-adaptation rod-pulling type casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208690084U true CN208690084U (en) | 2019-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821393817.XU Active CN208690084U (en) | 2018-08-28 | 2018-08-28 | Paper oil insulation temperature self-adaptation rod-pulling type casing |
Country Status (1)
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|---|---|
| CN (1) | CN208690084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504092A (en) * | 2019-09-10 | 2019-11-26 | Abb瑞士股份有限公司 | Casing and its manufacturing method |
| CN111667997A (en) * | 2020-05-20 | 2020-09-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Current conversion transformer network side sleeve pull rod system |
-
2018
- 2018-08-28 CN CN201821393817.XU patent/CN208690084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504092A (en) * | 2019-09-10 | 2019-11-26 | Abb瑞士股份有限公司 | Casing and its manufacturing method |
| CN111667997A (en) * | 2020-05-20 | 2020-09-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Current conversion transformer network side sleeve pull rod system |
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