CN209963608U - Wire clamp emergency heating live processing device - Google Patents
Wire clamp emergency heating live processing device Download PDFInfo
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- CN209963608U CN209963608U CN201920906353.6U CN201920906353U CN209963608U CN 209963608 U CN209963608 U CN 209963608U CN 201920906353 U CN201920906353 U CN 201920906353U CN 209963608 U CN209963608 U CN 209963608U
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- disconnecting link
- contact finger
- link contact
- screw rod
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Abstract
The utility model relates to a wire clamp emergency heating electrification processing device. The method is characterized in that: the connecting device comprises a connecting screw rod (3), wherein an upper chuck (2) and a lower chuck (6) are fixedly mounted on the connecting screw rod (3) respectively, the upper chuck (2) and the lower chuck (6) are U-shaped plates and are parallel to each other, a left disconnecting link contact finger (7) is arranged in the middle of the left sides of the upper chuck (2) and the lower chuck (6), a right disconnecting link contact finger is arranged in the middle of the right sides of the upper chuck (2) and the lower chuck (6), the upper end and the lower end of the left disconnecting link contact finger (7) are connected with the upper chuck (2) and the lower chuck (6) respectively through elastic elements, and the upper end and the lower end of the right disconnecting link contact finger are also connected with the upper chuck (2) and the lower chuck (6) respectively through the elastic elements; also comprises an L-shaped mounting screw rod (4). The device can be used for processing the heating condition of the wire clamp of the equipment with electricity, thereby avoiding switching operation and reducing maintenance time.
Description
Technical Field
The utility model relates to a wire clamp emergency heating electrification processing device.
Background
The heating of the wire clamp is a common fault of the substation equipment, and along with the lengthening of the operation period, the phenomena of poor contact, corrosion and aging of the equipment are quite common, and the occurrence probability of the heating fault is increased continuously. If the heating fault of the wire clamp is not timely processed, the wire clamp can be finally developed into emergency heating, the deformation and burning of equipment can be possibly caused, and the safe and stable operation of a transformer substation is seriously threatened. For example, most of the operation and maintenance substations managed by a certain provincial maintenance company operate for more than 10 years, the corrosion and aging phenomena of equipment are serious, and the heating faults of wire clamps occur. A4-start crisis heating fault occurs in a 330kV transformer substation under the jurisdiction of a company of 5 months in 2016. According to statistics of heating faults of 25 transformer substations in nearly three years, the heating faults of 220kV and below voltage level account for more than 70%, namely equipment heating in the voltage level is easy to heat, and potential safety hazards are formed.
According to the conventional mode, the equipment wire clamp adopts power failure treatment after heating. By counting the emergency heating processing conditions of the governed transformer substations, the average time of the equipment is about 4 hours when the equipment is powered off, and the average time of the equipment is 1.5 hours when the equipment is powered off. The whole critical heat treatment time is as long as 5.5 hours. Therefore, the situation that the clamp heating fault occurs in the equipment is very severe, and in order to rapidly process the heating fault and solve the problem of accident expansion caused by emergency heating, a device is needed to be developed to realize the clamp heating condition of the charged processing equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wire clamp emergency heating electrification processing device can the electrification processing equipment wire clamp situation of generating heat, avoids the switching operation, reduces the repair time.
An emergency heating and electrification processing device for a wire clamp is characterized in that: the upper chuck and the lower chuck are both U-shaped plates and are parallel to each other, a left disconnecting link contact finger is arranged in the middle of the left sides of the upper chuck and the lower chuck, a right disconnecting link contact finger is arranged in the middle of the right sides of the upper chuck and the lower chuck, the upper end and the lower end of the left disconnecting link contact finger are connected with the upper chuck and the lower chuck through elastic elements respectively, and the upper end and the lower end of the right disconnecting link contact finger are also connected with the upper chuck and the lower chuck through elastic elements respectively; the device also comprises an L-shaped mounting screw rod, one end of the L-shaped mounting screw rod is fixedly connected with the connecting screw rod, and the other end of the L-shaped mounting screw rod is detachably connected with the top end of the insulating operating rod through a fastener.
Wherein the beginning department that left side switch touched the finger and right side switch touched the finger all outwards bends and is the arc to the left side switch touches the finger and right side switch touches the connecting segment that the finger middle is soft connection.
Wherein the flexible connection refers to connection through a wire.
The front parts of the upper end and the lower end of the left disconnecting link contact finger are connected with the upper chuck and the lower chuck through a top spring, and the rear parts of the upper end and the lower end of the left disconnecting link contact finger are connected with the upper chuck and the lower chuck through a tension spring; the front parts of the upper end and the lower end of the right disconnecting link contact finger are connected with the upper chuck and the lower chuck through a top spring, and the rear parts of the upper end and the lower end of the right disconnecting link contact finger are connected with the upper chuck and the lower chuck through a tension spring.
The utility model discloses the device adopts simple reposition of redundant personnel principle, uses external force to increase the contact surface between the fastener, reduces contact resistance (the not hard up generating heat that leads to of fastener screw that generally appears) and make and pass through a part electric current between two fasteners from diverging device to reduce the electric current of direct fastener, reduce the temperature that generates heat of equipment fastener simultaneously. The device can be used for processing the heating condition of the wire clamp of the equipment with electricity, thereby avoiding switching operation and reducing maintenance time. The tail of the device is fixed by bolts, so that the device is suitable for wire clamps and wires with various thicknesses and diameters, the spring is arranged between the pressure contact finger and an external fixed steel part, the pressing force of the contact finger is increased, the device has excellent electrical performance, and meanwhile, the current carrying capacity of the shunt device is increased due to the double-contact-finger design.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the utility model provides a wire clamp emergency heating electrification processing apparatus, including connecting screw 3, can dismantle mode fixed mounting through the screw respectively on this connecting screw 3 and go up chuck 2 and lower chuck 6, should go up chuck 2 and chuck 6 interval adjustable and be the horizontally U template down to these two horizontally U templates size shape is the same and be parallel to each other, and aforementioned connecting screw 3 passes and connects from the intermediate junction department of these two U templates respectively.
A U-shaped plate-shaped left disconnecting link contact finger 7 is arranged in the middle of the left sides of the upper chuck 2 and the lower chuck 6, a U-shaped plate-shaped right disconnecting link contact finger is arranged in the middle of the right sides of the upper chuck 2 and the lower chuck 6, the upper end (plate outer wall) and the lower end (plate outer wall) of the left disconnecting link contact finger 7 are respectively connected with the upper chuck 2 (plate inner wall) and the lower chuck 6 (plate inner wall) through elastic elements, and the upper end (plate outer wall) and the lower end (plate outer wall) of the right disconnecting link contact finger are also respectively connected with the upper chuck 2 (plate inner wall) and the lower chuck 6 (plate inner wall) through elastic elements; the device also comprises an L-shaped mounting screw rod 4, one end of the L-shaped mounting screw rod 4 is fixedly connected with the middle part of the connecting screw rod 3, and the other end of the L-shaped mounting screw rod 4 is detachably connected with the top end of the 200KV insulated operating rod through a thread by a fastener such as a screw thread.
In addition, the starting parts of the left disconnecting link contact finger 7 and the right disconnecting link contact finger are both outwards bent to form an arc shape, and the connecting sections between the left disconnecting link contact finger 7 and the right disconnecting link contact finger are both in flexible connection, wherein the flexible connection refers to connection with a plurality of copper or aluminum wires.
The front parts of the upper end and the lower end of a left disconnecting link contact finger 7 are connected with an upper chuck 2 and a lower chuck 6 through a top spring 1, and the rear parts of the upper end and the lower end of the left disconnecting link contact finger 7 are connected with the upper chuck 2 and the lower chuck 6 through a tension spring 5; wherein the front parts of the upper end and the lower end of the right disconnecting link contact finger are connected with an upper chuck 2 and a lower chuck 6 through a top spring 1, and the rear parts of the upper end and the lower end of the right disconnecting link contact finger are connected with the upper chuck 2 and the lower chuck 6 through a tension spring 5.
Example 1:
the following describes the implementation of the system and method in detail with reference to the accompanying drawings.
1. And (6) assembling the device.
The components are assembled according to figure 1.
(1) A finger portion.
The contact finger part adopts a disconnecting link contact finger as a contact part, so that the contact resistance between the device and the wire clamp can be effectively reduced. And the stability of the device can be improved by adopting the double contact fingers. The rear parts of the upper and lower contact fingers are connected by copper flexible connection, and the flexible connection can be selected according to the current of the wire clamp; contact and indicate with spring coupling between the steel sheet, the front portion adopts top spring 1, and the extension spring 5 is adopted at the rear portion, makes to touch narrow back width before indicating the interval, can effectively hoisting device grip power, can play the cushioning effect simultaneously, hoisting device stability.
(2) A screw portion.
The screw rod is a full-thread screw rod, can be reliably connected and fixed with the steel plate through a nut, and can adjust the distance between the touch fingers according to the thickness of equipment; the device is fixed by a U-shaped steel plate.
(3) And (5) a clamping structure.
The clamping structure adopts double clamping heads, the clamping force is enough, the contact length is not less than 70% of the width of the equipment, the thickness is 3-4mm, the horizontal length is not less than 10cm, the opening length is 3-3.5cm, the spacing is 4.5-5.5cm, the connecting screw rod 3 is designed to be 4.5 x 45mm, the pin is 10 x 10mm, and the double clamping heads have high stability, are easy to install and have high shock resistance. The clamping material is a stainless steel plate with the compression resistance in the range of 150-200kg/cm 2. The conductive performance is better, the performance is stable, the performance is not obviously changed at high and low temperatures, and the oxidation resistance is strong.
(4) And (5) a connecting structure.
The connecting structure adopts contact connection, so that the installation and separation are easy, the force transmission is sufficient, the connection stability is moderate, the manufacturing cost is low, the screw size is 20mm x 8cm, and the sleeve size is 24mm x 7 cm. The transmission material selects a specially-made 220kV operating rod, is connected by additionally installing screw threads, cannot be loosened after installation, has high stability and can meet the requirement of 5.1 m overhead operation.
(5) And (3) a steel plate.
The steel plate has higher hardness, can well play a role in fixing, is designed into a U shape, can avoid bolts on a wire clamp, and can reduce the weight of the device and reduce the operation difficulty; the whole connection adopts a long screw rod to be connected with the operating rod, so that the device is not easy to fall off, the U-shaped steel ring is added at the lower part, and an acting point is added, so that the operation is easier.
2. And detecting the performance of the device.
The performance of the device is tested before use as follows:
(1) and (3) testing the resistance value between the contact fingers: the test value is less than 50 mu omega, and the requirement is met;
(2) and (3) pressure resistance test: the integral ground 440kV withstand voltage test is free of breakdown for 1min, and the requirements are met;
(3) and (3) testing the clamping force: the weight of the clamping joint is 2.5kg, the effective clamping force between the single-touch fingers is 45N, and the double-touch fingers can reach 90N, so that the clamping joint can not fall off under the influence of environmental factors such as strong wind and the like after being installed;
(4) moment measurement: taking the height of 220kV equipment as an example, the arm strength of an adult man is about 700N, the operable length of an operating rod is 0.8 m, the weight of a clamping joint is 2.5kg, the weight of the operating rod is 4kg, and the clamping force between joints is 90N, through calculation of a moment formula, the device can work at the height of 5.1 m, the height of the 220kV equipment in a station generally does not exceed 5m, the safety distance of 220kV live working is 1.8 m, and the requirement of the 220kV equipment on the high-altitude working is met.
(5) And (3) field live test: the maintainer generates heat to a certain transformer substation 35kV voltage transformer equipment wire clamp and uses the device to carry out on-site processing. Firstly, confirming a heating point part by using infrared accurate temperature measurement; secondly, adjusting a nut at the tail of the shunt joint to enable a gap between an upper contact finger and a lower contact finger of the shunt joint to meet the field use requirement; thirdly, assembling and connecting the transfer device, clamping the shunt joint on a heating point (equipment wire clamp), and confirming that the installation is reliable; and fourthly, continuously observing through infrared accurate temperature measurement, making a record, and observing whether the temperature of the heating point is reduced.
Claims (4)
1. The utility model provides a wire clamp emergency heating electrification processing apparatus which characterized in that: the connecting device comprises a connecting screw rod (3), wherein an upper chuck (2) and a lower chuck (6) are fixedly mounted on the connecting screw rod (3) respectively, the upper chuck (2) and the lower chuck (6) are U-shaped plates and are parallel to each other, a left disconnecting link contact finger (7) is arranged in the middle of the left sides of the upper chuck (2) and the lower chuck (6), a right disconnecting link contact finger is arranged in the middle of the right sides of the upper chuck (2) and the lower chuck (6), the upper end and the lower end of the left disconnecting link contact finger (7) are connected with the upper chuck (2) and the lower chuck (6) respectively through elastic elements, and the upper end and the lower end of the right disconnecting link contact finger are also connected with the upper chuck (2) and the lower chuck (6) respectively through the elastic elements; the device is characterized by further comprising an L-shaped mounting screw rod (4), wherein one end of the L-shaped mounting screw rod (4) is fixedly connected with the connecting screw rod (3), and the other end of the L-shaped mounting screw rod is detachably connected with the top end of the insulating operating rod through a fastener.
2. The wire clamp emergency heating live processing device according to claim 1, characterized in that: wherein the beginning of the left-side disconnecting link contact finger (7) and the right-side disconnecting link contact finger are both outwards bent to form an arc shape, and the connecting sections between the left-side disconnecting link contact finger (7) and the right-side disconnecting link contact finger are both in flexible connection.
3. The wire clamp emergency heating live processing device according to claim 1, characterized in that: wherein the flexible connection refers to connection through a wire.
4. The wire clamp emergency heating live processing device according to claim 1, characterized in that: the front parts of the upper end and the lower end of the left disconnecting link contact finger (7) are connected with the upper chuck (2) and the lower chuck (6) through a top spring (1), and the rear parts of the upper end and the lower end of the left disconnecting link contact finger (7) are connected with the upper chuck (2) and the lower chuck (6) through a tension spring (5); the front parts of the upper end and the lower end of the right disconnecting link contact finger are connected with the upper chuck (2) and the lower chuck (6) through a top spring (1), and the rear parts of the upper end and the lower end of the right disconnecting link contact finger are connected with the upper chuck (2) and the lower chuck (6) through a tension spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920906353.6U CN209963608U (en) | 2019-06-17 | 2019-06-17 | Wire clamp emergency heating live processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920906353.6U CN209963608U (en) | 2019-06-17 | 2019-06-17 | Wire clamp emergency heating live processing device |
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| Publication Number | Publication Date |
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| CN209963608U true CN209963608U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920906353.6U Active CN209963608U (en) | 2019-06-17 | 2019-06-17 | Wire clamp emergency heating live processing device |
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| CN (1) | CN209963608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247324A (en) * | 2019-06-17 | 2019-09-17 | 国网宁夏电力有限公司检修公司 | The critical fever electrical treatment device of wire clamp |
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2019
- 2019-06-17 CN CN201920906353.6U patent/CN209963608U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247324A (en) * | 2019-06-17 | 2019-09-17 | 国网宁夏电力有限公司检修公司 | The critical fever electrical treatment device of wire clamp |
| CN110247324B (en) * | 2019-06-17 | 2024-05-10 | 国网宁夏电力有限公司检修公司 | Wire clamp critical heating electrified treatment device |
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