High-voltage insulating sleeve for transformer substation

Abstract

The utility model relates to the technical field of high-voltage insulating sleeves, and discloses a high-voltage insulating sleeve for a transformer substation, which comprises a conducting rod I and a conducting rod II, a connecting block is arranged at the top of the conducting rod I, an upper insulating sleeve is arranged on the outer diameter side of the conducting rod I, an insulating outer sleeve is arranged on the outer diameter side of the conducting rod II, and an oil outlet part is arranged at the outer diameter part of the conducting rod I; the oil outlet part comprises a cylinder and an oil outlet hole, one end of an output rod of the cylinder is provided with a rubber plug, one side wall of the conducting rod protrudes to form an oil observation window, the oil observation window is sleeved with an observation part, the observation part comprises a mirror, and an included angle is formed between the mirror and the oil observation window. The cylinder drives the rubber plug to close or open the oil outlet hole, the structure is simple, the manufacturing cost is low, the mirror of the observation part is used for reflecting the oil observation window, internal oil can be observed conveniently, and the situation that the installation position of the high-voltage insulating sleeve is inconvenient for workers to observe directly is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure insulation sleeve technical field especially relates to a transformer substation with high pressure insulation sleeve. BACKGROUND

[0002] High voltage insulation sleeve is important equipment in power system, its main function is to provide insulation protection, prevent current leakage or short circuit, ensure the safe and stable operation of electrical system, in addition, high voltage insulation sleeve can also bear high voltage and large current, ensure the normal operation of power equipment, with the progress of technology, the application of new environmental protection material makes the performance of high voltage insulation sleeve has been improved significantly, such as the application of high performance ceramic matrix composite, not only improves the insulation performance and heat resistance, also reduces the energy consumption and pollution in the production process, high voltage insulation sleeve is widely used in power, communication, rail transit and many other fields, in the power industry, it is used in power transmission and distribution system, electrical equipment etc.

[0003] According to the high voltage insulation sleeve system (authorization announcement number: CN220585007U) disclosed by the patent network, "it includes oil drainage assembly and sleeve structure, the oil drainage assembly includes motor assembly, the motor assembly further includes shielding shell, the inside of the shielding shell is installed with step motor, the top of the step motor is installed with shielding shell upper end cover, the connecting end of the step motor is installed with shielding wire two, the output end of the step motor is installed with end cap through the screw principle, the bottom end of the end cap is installed with rubber coating, the shielding shell upper end cover is simultaneously increased with conductive glue, the shielding wire two is a multi-layer shielding wire structure."

[0004] For the above description, the applicant believes that there are the following problems:

[0005] The utility model in the process of using, because the motor assembly further includes shielding shell, the inside of the shielding shell is installed with step motor, the top of the step motor is installed with shielding shell upper end cover, the output end of the step motor is installed with end cap through the screw principle, the step motor cover of prior art is provided with shielding shell, the structure design is complex, and the cost is higher, the end cap installed with screw principle is reduced the meshing degree for long-term use, not easy to control, therefore needs to improve the transformer substation with high pressure insulation sleeve to solve the above problems. Utility model content

[0006] In order to overcome the step motor cover of prior art is provided with shielding shell, the structure design is complex, and the cost is higher, the end cap installed with screw principle is reduced the meshing degree for long-term use, not easy to control.

[0007] The utility model discloses a technical scheme for a high-voltage insulating bushing for a transformer substation, comprising a first electrically conductive rod and a second electrically conductive rod, which are connected by a connecting flange. The top of the first electrically conductive rod is provided with a connecting block, and the outer diameter side of the first electrically conductive rod is provided with an upper insulating sleeve. The upper insulating sleeve comprises a voltage equalizing ring arranged along the axis of the first electrically conductive rod. The outer diameter side of the second electrically conductive rod is provided with an insulating sleeve arranged along the axis of the second electrically conductive rod. A protruding end screen is provided between the upper insulating sleeve and the connecting flange on the outer diameter of the first electrically conductive rod. An oil outlet part is provided on the other side of the end screen on the first electrically conductive rod. The oil outlet part comprises a cylinder and an oil outlet hole. The cylinder comprises an output rod, and a rubber plug is installed at one end of the output rod. The rubber plug can block the oil outlet hole. An oil observation window protrudes above the upper insulating sleeve on the side wall of the first electrically conductive rod. The oil observation window has a rectangular structure, and an observation part is sleeved on the oil observation window. The observation part comprises a mirror, and an angle is formed between the mirror and the oil observation window.

[0008] Preferably, the oil outlet part further comprises an oil outlet pipe, which is arranged at a distance from the end screen. A joint is arranged below the oil outlet pipe, and a connecting pipe is inserted into the joint away from the oil outlet pipe.

[0009] Preferably, the side of the oil outlet pipe away from the first electrically conductive rod is provided with an insulating plate. The connecting pipe is made of insulating material. An oil outlet hole is formed through the insulating plate. The connecting pipe is connected to the oil outlet hole.

[0010] Preferably, the side of the insulating plate away from the oil outlet pipe is provided with a plurality of top columns. The top columns are arranged around the oil outlet hole. The side of the top column away from the insulating plate is provided with a connecting plate. The connecting plate is connected to the plurality of top columns. A cylinder is installed on the side of the connecting plate away from the top column. The output rod of the cylinder can extend to the oil outlet hole through the connecting plate. The output rod is coaxially arranged with the oil outlet hole.

[0011] Preferably, a rectangular frame is interference-fitted on the outside of the oil observation window. Two support plates are arranged on the side of the rectangular frame away from the first electrically conductive rod. The two support plates are arranged at a distance from the oil observation window. A rotating plate is arranged between the two support plates. A groove one is formed on the surface of the rotating plate. The mirror is embedded in the groove one.

[0012] Preferably, the rotating plate is provided with rotating columns corresponding to the two sides of the support plate. The support plate is provided with rotating holes corresponding to the rotating columns. The rotating columns can rotate in the rotating holes. The height of the rotating plate is greater than the distance between the two support plates. The support plate has elasticity. A groove two is formed on the oil observation window. A transparent plate is embedded in the groove two. Scale lines are engraved on the surface of the transparent plate.

[0013] Preferably, a one-way valve is installed on the side of the oil outlet pipe away from the first electrically conductive rod.

[0014] The utility model discloses a beneficial effect: relative to the step motor outer cover is equipped with shielding shell, uses screw rod drive end head movement, closes or opens through the rubber plug of cylinder drive oil hole, simple structure, low cost, uses the mirror of observation part to carry out reflection to oil observation window, is convenient for observing the oil in the inside, reduces the inconvenient position of high pressure insulation sleeve installation and is directly observed by staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole structure schematic diagram of the utility model;

[0016] Figure 2 It is joint structure schematic diagram of the utility model;

[0017] Figure 3 It is top post structure schematic diagram of the utility model;

[0018] Figure 4 It is rotating plate structure schematic diagram of the utility model;

[0019] Figure 5 It is scale line structure schematic diagram of the utility model.

[0020] Mark explanation: 1, upper insulation sleeve;11, joint;12, connecting pipe;2, oil observation window;21, transparent plate;211, scale line;22, oil outlet pipe;221, insulating plate;2211, oil outlet hole;222, top post;223, connecting plate;224, cylinder;2241, output rod;25, connecting block;3, oil delivery pipe;31, check valve;4, equalizing ring upper;5, end shield;51, rectangular frame;52, support plate;53, rotating plate;531, mirror;6, connecting flange;7, insulation outer sleeve lower;81, conductive rod one;82, conductive rod two. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and examples.

[0022] Please refer to Figure 1 - Figure 5The utility model provides a kind of embodiment: a high voltage insulating bushing for transformer substation, including electrically conductive pole one 81, electrically conductive pole two 82, electrically conductive pole one 81, electrically conductive pole two 82 are connected by connecting flange 6, the top of electrically conductive pole one 81 is equipped with connecting block 25, the outer diameter side of electrically conductive pole one 81 is equipped with upper insulating sleeve 1, upper insulating sleeve 1 includes voltage equalizing ring upper 4 along the axis of electrically conductive pole one 81 arrangement, the outer diameter side of electrically conductive pole two 82 is equipped with insulating outer sleeve lower 7 along the axis of electrically conductive pole two 82 arrangement, at the outer diameter of electrically conductive pole one 81, between upper insulating sleeve 1 and connecting flange 6 is equipped with the protruding end shield 5, the other side of electrically conductive pole one 81 corresponding end shield 5 is equipped with oil outlet part, oil outlet part includes cylinder 224, oil outlet hole 2211, cylinder 224 includes output rod 2241, one end of output rod 2241 is equipped with rubber plug, rubber plug can block oil outlet hole 2211, the sidewall of electrically conductive pole one 81 corresponds the upper of upper insulating sleeve 1 and protrudes oil liquid observation window 2, oil liquid observation window 2 is rectangular structure, oil liquid observation window 2 is equipped with observation part, observation part includes mirror 531, the included angle between mirror 531 and oil liquid observation window 2 is equipped with, close or open oil outlet hole 2211 by cylinder 224 drive rubber plug, simple structure, low cost, use the mirror 531 of observation part to reflect oil liquid observation window 2, it is convenient to observe the oil in the inside, reduce the position inconvenient for staff direct observation of high voltage insulating bushing installation.

[0023] Please refer to Figure 1 - Figure 4 In the embodiment, the oil outlet part further includes an oil outlet pipe 22, the oil outlet pipe 22 is arranged spaced apart from the end shield 5, a joint 11 is arranged below the oil outlet pipe 22, a connecting pipe 12 is inserted into one side of the joint 11 away from the oil outlet pipe 22, the joint 11 is arranged below the oil outlet pipe 22, which facilitates the discharge of oil in the high voltage insulating bushing, an insulating plate 221 is arranged on one side of the oil outlet pipe 22 away from the electrically conductive pole one 81, the connecting pipe 12 is made of insulating material, the insulating plate 221 is provided with a through oil outlet hole 2211, the connecting pipe 12 is connected with the oil outlet hole 2211, the connecting pipe 12 is fixed through the oil outlet hole 2211 of the insulating plate 221, which prevents the connecting pipe 12 from shaking and causing irregular spilling of oil when the insulating bushing discharges oil, a plurality of top pillars 222 are arranged on one side of the insulating plate 221 away from the oil outlet pipe 22, the top pillars 222 surround the oil outlet hole 2211, a connecting plate 223 is arranged on one side of the top pillars 222 away from the insulating plate 221, the connecting plate 223 is connected with the top pillars 222, a cylinder 224 is arranged on one side of the connecting plate 223 away from the top pillars 222, an output rod 2241 of the cylinder 224 can extend to the oil outlet hole 2211 through the connecting plate 223, the output rod 2241 is coaxially arranged with the oil outlet hole 2211, the cylinder 224 is spaced apart from the insulating plate 221 through the plurality of top pillars 222, which facilitates the rubber plug on the output rod 2241 to block the oil outlet hole 2211.

[0024] Please refer to Figure 2 - Figure 5 In the embodiment, the outer side of the oil observation window 2 is provided with a rectangular frame 51, two support plates 52 are arranged on the side away from the conductive rod one 81, the two support plates 52 are arranged with an interval between the oil observation window 2, a rotating plate 53 is arranged between the two support plates 52, the surface of the rotating plate 53 is provided with a groove one, a mirror 531 is embedded in the groove one, the rectangular frame 51 is convenient to install with the oil observation window 2 through the interference fit, and the rectangular frame 51 and the oil observation window 2 are square structures, which have four installation modes to solve the inconvenience of observation. The rotating plate 53 is provided with a rotating column corresponding to the two sides of the support plate 52, the support plate 52 is provided with a rotating hole corresponding to the rotating column, the rotating column can rotate in the rotating hole, the height of the rotating plate 53 is greater than the interval between the two support plates 52, the support plate 52 has elasticity, a groove two is arranged on the oil observation window 2, a transparent plate 21 is embedded in the groove two, the surface of the transparent plate 21 is engraved with a scale line 211, the height of the rotating plate 53 is greater than the interval between the two support plates 52 to reduce the possibility of automatic rotation of the rotating plate 53 and maintain stability, the scale line 211 is convenient for accurate reading, and a one-way valve 31 is arranged on the side away from the conductive rod one 81 of the oil pipe 3. The one-way valve 31 reduces the possibility of oil overflow from above the conductive rod one 81 and can only enter the insulating sleeve from the one-way valve 31.

[0025] When working, for the high-voltage insulating sleeve just installed in the transformer substation, for the high-voltage insulating sleeve inconvenient to observe the oil observation window 2, the rectangular frame 51 can be sleeved on the oil observation window 2, and the rotating plate 53 can be pulled according to the needs, so that the operator can also see the transparent plate 21 of the oil observation window 2 on the side of the oil observation window 2, and the one-way valve 31 is connected to the oil supply pipe. When oil needs to be taken, the remote control center can be controlled to control the cylinder 224 to retract the output rod 2241, so that the rubber plug is pulled out of the oil outlet hole 2211, the oil in the high-voltage insulating sleeve flows from the oil outlet pipe 22 to the connecting pipe 12, and then flows out of the oil outlet hole 2211. An oil receiving groove is arranged below the insulating plate 221 to receive the discharged oil. The high-voltage insulating sleeve is also provided with a pressure relief device, and the pressure relief device is a prior art. The corresponding electric control and pneumatic control devices are prior arts, and their working principles will not be described here.

[0026] Through the above steps, the rubber plug drives the oil outlet hole 2211 to be closed or opened, the structure is simple, the cost is low, the mirror 531 of the observation part is used for reflecting the oil observation window 2, the internal oil is observed, the position of the high-voltage insulating sleeve is inconvenient for the staff to directly observe, and the problems of the step motor cover of the prior art are solved. The shielding shell has a complex structure design and high cost, and the engagement degree of the long-term use of the screw rod principle installation head is reduced, and the problem is not easy to control.

Claims

1. A high voltage insulating bushing for a substation, characterized by: The utility model provides a kind of electric pole, including electric pole one (81), electric pole two (82), electric pole one (81), electric pole two (82) are connected by connecting flange (6) between, the top of electric pole one (81) is equipped with connecting block (25), the outer diameter side of electric pole one (81) is equipped with upper insulating sleeve (1), upper insulating sleeve (1) includes along the axis of electric pole one (81) arrangement equalizing ring upper (4), the outer diameter side of electric pole two (82) is equipped with along the axis of electric pole two (82) arrangement insulating sleeve lower (7), at the outer diameter of electric pole one (81), corresponding upper insulating sleeve (1) and connecting flange (6) between are equipped with the convex final screen (5), on electric pole one (81) corresponding the other side of final screen (5) is equipped with oil outlet part, and oil outlet part includes cylinder (224), oil outlet hole (2211), cylinder (224) includes output rod (2241), and one end of output rod (2241) is equipped with rubber plug, and rubber plug can block oil outlet hole (2211), the side wall of electric pole one (81) is protruded with oil observation window (2) above corresponding upper insulating sleeve (1), oil observation window (2) is rectangular structure, and observation part is sleeved on oil observation window (2), and observation part includes mirror (531), and the included angle is equipped between mirror (531) and oil observation window (2).

2. The high voltage bushing for a power substation of claim 1, characterized in that: Oil outlet part further includes oil outlet pipe (22), and oil outlet pipe (22) is spaced apart from final screen (5), and the lower side of oil outlet pipe (22) is equipped with connector (11), and the side of connector (11) away from oil outlet pipe (22) is inserted with connecting pipe (12).

3. The high voltage bushing for a power substation of claim 2, characterized in that: The side of oil outlet pipe (22) away from electric pole one (81) is equipped with insulating plate (221), connecting pipe (12) is made of insulating material, and oil outlet hole (2211) is formed in insulating plate (221), and connecting pipe (12) can be connected with oil outlet hole (2211).

4. The high voltage bushing for a power substation of claim 3, characterized in that: The side of insulating plate (221) away from oil outlet pipe (22) is equipped with a plurality of jacks (222), a plurality of jacks (222) are arranged around oil outlet hole (2211), the side of jack (222) away from insulating plate (221) is equipped with connecting plate (223), connecting plate (223) is connected with a plurality of jacks (222), the side of connecting plate (223) away from jack (222) is equipped with cylinder (224), the output rod (2241) of cylinder (224) can be stretched to oil outlet hole (2211) through connecting plate (223), and output rod (2241) is coaxially arranged with oil outlet hole (2211).

5. The high voltage bushing for a power substation of claim 1, wherein: The outer side of oil observation window (2) is sleeved with rectangular frame (51) with interference, the side of rectangular frame (51) away from electric pole one (81) is equipped with two support plates (52), two support plates (52) are spaced apart from oil observation window (2), and rotating plate (53) is arranged between two support plates (52), and the surface of rotating plate (53) is equipped with groove one, and mirror (531) is embedded in groove one.

6. The high voltage bushing for a power substation of claim 5, characterized in that: Rotary plate (53) corresponding to the two sides of the support plate (52) is provided with rotating column, support plate (52) is provided with corresponding rotating hole, rotating column can rotate in rotating hole, the height of rotating plate (53) is greater than the interval between two support plates (52), support plate (52) has elasticity, oil observation window (2) is provided with groove two, groove two is embedded with transparent plate (21), the surface of transparent plate (21) is engraved with scale line (211).

7. The high voltage bushing for a power substation of claim 6, characterized in that: The oil delivery pipe (3) is provided with a one-way valve (31) on the side away from the conductive rod (81).

Images