Vehicle-mounted lifting high-voltage test reactor

Abstract

The present invention discloses a vehicle-mounted lifting type high-voltage test reactor. The vehicle-mounted lifting type high-voltage test reactor is vertically mounted on a base frame as a whole. The vehicle-mounted lifting type high-voltage test reactor includes multiple annular reactors, a pressure-equalizing cover, an inner cylinder of the pressure-equalizing cover, a base and a cylinder. The multiple annular reactors and the inner cylinder of the pressure-equalizing cover are sequentially mounted from the outside to the inside. The outer layer of the annular reactor falls on the bottom plate of the base, and the second layer of the annular reactor falls on the bottom plate of the outer layer of the annular reactor. And so on, finally the inner cylinder of the pressure-equalizing cover falls on the bottom plate of the inner layer of the annular reactor; the base is fixed on the base frame, the pressure-equalizing cover is fixed on the cover plate of the inner cylinder of the pressure-equalizing cover, and the cylinder is fixed on the bottom plate of the base. Advantages: The present invention uses a built-in epoxy resin insulated cylinder to lift the mounted annular reactor, which is stable, safe, labor-saving and space-saving; it greatly reduces the manufacturing and maintenance costs, and has significant economic and social benefits.

Description

Technical Field

[0001] The invention relates to an electrical test complete set, in particular to a vehicle-mounted liftable high-voltage test reactor, specifically a vehicle-mounted liftable high-voltage test reactor. Background Art

[0002] The widely used frequency modulation series resonance complete set currently contains a reactor unit. The air-core reactor must be lifted to a certain distance from the car body to reduce the impact of eddy current loss when working on the vehicle. To this end, Patent 202310797957.2 proposes a power cable test vehicle that uses four external epoxy resin insulated cylinders to lift the reactor off the car body. However, as the test voltage increases, the height of the reactor increases proportionally. Even if the reactor above 500kV falls on the car body, its height exceeds the elevation of general road bridges and tunnels and cannot pass through. In addition, its own center of gravity is high and the transportation state is unstable. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle-mounted lifting high-voltage test reactor to solve the problem of controlling the working height of the ultra-high voltage / ultra-high voltage air-core reactor on the vehicle and the transportation height within the road bridge and tunnel elevation. The technical solution adopted is as follows:

[0004] A vehicle-mounted liftable high-voltage test reactor, which is vertically mounted on a base frame as a whole. The vehicle-mounted liftable high-voltage test reactor includes multiple annular reactors, a pressure-equalizing cover, an inner cylinder of the pressure-equalizing cover, a base and a cylinder. The multiple annular reactors and the inner cylinder of the pressure-equalizing cover are sequentially mounted from the outside to the inside. The outer annular reactor falls on the bottom plate of the base, the second annular reactor falls on the bottom plate of the outer annular reactor, and so on. Finally, the inner cylinder of the pressure-equalizing cover falls on the bottom plate of the inner annular reactor; the base is fixed on the base frame, the pressure-equalizing cover is fixed on the cover plate of the inner cylinder of the pressure-equalizing cover, and the cylinder is fixed on the bottom plate of the base.

[0005] According to a further preferred embodiment of the technical solution of the present invention, the cylinder is made of a multi-section epoxy resin fiberglass winding tube set, the lowest section is provided with a flange fixed to the bottom plate of the base and a first air nozzle, the first air nozzle is connected to the air compressor through a first air pipe, the air compressor is fixed on the chassis, and the air compressor is located next to the vehicle-mounted lifting high-voltage test inductor.

[0006] In a further preferred embodiment of the technical solution of the present invention, the base includes a base tube and a base bottom plate; a second air nozzle is provided on the base bottom plate, and the second air nozzle is connected to the blower through a second air pipe. Dry compressed air enters the hollow inner cavity of the sleeved annular reactor through the second air pipe and the second air nozzle, forming a high-speed airflow from bottom to top, and dissipating heat from the inner wall or the inner and outer walls of the annular reactor.

[0007] In a further preferred embodiment of the technical solution of the present invention, a plurality of blocks for limiting the raised annular reactor and the inner cylinder of the pressure grading cover are arranged on the top of the base and the cover plate of each annular reactor.

[0008] In a further preferred embodiment of the technical solution of the present invention, the stopper is provided with a latch for locking the raised annular reactor and the inner cylinder of the voltage grading cover.

[0009] In a further preferred embodiment of the technical solution of the present invention, the inner cylinder of the pressure equalizing hood is located in the center of the pressure equalizing hood.

[0010] As a further optimization of the technical solution of the present invention, the pressure equalizing hood is spherical in shape as a whole, and is made of low-magnetic steel thin tube rings arranged in an orderly manner with a spacing of 10 mm between each layer. A circular hole for introducing the bellows is opened on the pressure equalizing hood.

[0011] In a further embodiment of the technical solution of the present invention, a capacitive voltage divider is arranged on the chassis, and the capacitive voltage divider is located on the outside of the vehicle-mounted lifting high-voltage test reactor; the height and rated voltage of the capacitive voltage divider are the same as those of the outer ring reactor, and is used for test voltage measurement.

[0012] In a further preferred embodiment of the technical solution of the present invention, a grading ring is installed on the cover plate of each annular reactor to shield the metal tip inside the grading ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The vehicle-mounted lifting high-voltage test reactor of the present invention adopts a built-in epoxy resin insulating cylinder to lift the annular reactor, which is stable, safe, labor-saving and space-saving.

[0015] 2. The vehicle-mounted lifting high-voltage test reactor of the present invention greatly reduces manufacturing and maintenance costs, and has significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a falling state of a toroidal reactor of the present invention in Example 1;

[0017] Figure 2 is a schematic diagram of the raised state of the annular reactor of the present invention in Example 1;

[0018] Figure 3 It is a schematic diagram of three toroidal reactors used in parallel, the voltage-equalizing cover raised, and the airflow in the cavity between the toroidal reactors.

[0019] Among them: 1-annular reactor, 2-pressure equalizing cover, 3-base, 31-base tube, 32-bottom plate, 33-second air nozzle, 4-pressure equalizing cover inner tube, 5-cylinder, 6-first air pipe, 7-second air pipe, 8-pressure equalizing ring, 9-block, 10-first air nozzle, 11-pin. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0021] To make the content of the present invention more clearly understood, the following Figure 1 -Attached Figure 3 The specific implementation manner is further described.

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Example 1

[0023] The vehicle-mounted liftable high-voltage test reactor of this embodiment adopts a built-in cylinder to solve the stability and reliability of lifting, and meets the requirements of controlling the operation of ultra-high voltage / ultra-high voltage air-core reactors on the vehicle and the transportation height within the elevation of roads, bridges and tunnels.

[0024] In the vehicle-mounted liftable high-voltage test reactor of this embodiment, the cylinder pushes the inner cylinder of the pressure equalizing cover to rise, driving the annular reactors on its outer layer to rise in sequence. After the inner cylinder of the pressure equalizing cover and all the annular reactors rise into place, the pins are locked, and the cylinder deflates and falls to reset, forming air insulation between the annular reactors.

[0025] like Figure 1 As shown, this embodiment is a vehicle-mounted liftable high-voltage test inductor, including three annular inductors 1, a pressure equalizing cover 2, a base 3, a pressure equalizing cover inner cylinder 4, a block 9, a latch 11, a cylinder 5, a first air pipe 6, a second air pipe 7, an air compressor and a blower.

[0026] The vehicle-mounted liftable high-voltage test reactor of this embodiment is vertically mounted on a base frame as a whole. In specific implementation, an air compressor, a blower and a capacitor voltage divider are also installed on the base frame.

[0027] like Figure 2 As shown, the base 3 of this embodiment includes a base tube 31 and a bottom plate 33, and the lower flange of the base tube is bolted to the bottom plate 33. The base 3 is bolted to the base frame.

[0028] like Figure 3 As shown, a second air nozzle 33 is provided on the bottom plate of the base, and the second air nozzle 33 is connected to the blower through the second air pipe 7. Dry air enters the hollow inner cavity of the nested annular reactor through the second air pipe 7 and the second air nozzle 33, forming a high-speed airflow from bottom to top, and dissipating heat from the inner wall or the inner and outer walls of the annular reactor.

[0029] like Figure 2As shown, a pressure grading hood inner cylinder is arranged inside the pressure grading hood, and the pressure grading hood inner cylinder is assembled with the annular reactor. The bottom plate of the pressure grading hood inner cylinder is pushed by the cylinder to drive the three assembled annular reactors to rise and fall in sequence. The pressure grading hood is fixed on the cover plate of the pressure grading hood inner cylinder and is located in the center.

[0030] like Figure 2 As shown, in this embodiment, the pressure equalizing cover 2 is spherical in shape, and is made of low-magnetic steel thin tubes arranged in an orderly manner, with a spacing of 10 mm between each layer. A circular hole with a diameter slightly larger than the diameter of the bellows is opened on the pressure equalizing cover so that the head of the bellows can be inserted into it to avoid the bellows head being exposed to the outside and causing tip discharge. In this embodiment, the diameter of the low-magnetic steel thin tube is 20 mm.

[0031] like Figure 2 As shown, the voltage grading cover 2 is installed on the voltage grading cover inner cylinder 4, and the voltage grading ring 8 is installed on all the annular reactor cover plates.

[0032] like Figure 1 As shown, in the vehicle-mounted liftable high-voltage test reactor of this embodiment, three annular reactors 1 and the inner cylinder of the pressure equalizing cover 3 are sequentially mounted from the outside to the inside, the outer annular reactor falls on the bottom plate of the base, the second-layer annular reactor falls on the bottom plate of the outer annular reactor, and the inner annular reactor falls on the bottom plate of the second-layer annular reactor; finally, the inner cylinder of the pressure equalizing cover falls on the bottom plate of the inner annular reactor.

[0033] The annular reactor 1 described in this embodiment is a known product in the technical field, which necessarily includes an inner and outer cylinder with upper and lower flanges, a bottom plate and a cover plate.

[0034] like Figure 1 and 2 As shown, the vehicle-mounted lifting high-voltage test reactor of this embodiment is provided with blocks 9 on all annular reactors 1 and base 2 to limit the raised annular reactor and voltage grading cover. The block 9 is provided with a latch to lock the raised reactor and voltage grading cover. Furthermore, the blocks on the annular reactor 1 are all bolted to the cover plate, and a plurality of blocks are installed circumferentially along the inner edge of the cover plate. The block on the base 3 is installed on the flange on the base tube.

[0035] like Figure 1 As shown, the three annular reactors are installed in sequence from the outside to the inside, and the inner layer of the annular reactor falls on the bottom plate of the outer layer of the annular reactor adjacent to it. The specific installation process is as follows:

[0036] Definition: The three annular reactors in this embodiment are: an outer annular reactor, a secondary annular reactor and an inner annular reactor.

[0037] First, fix the cylinder 5 on the bottom plate 33 of the base 3. The bottom plate 33 of the base is a whole plate and forms an airtight seal with the base tube 31 through a rubber seal ring. Specifically, an annular seal groove is provided on the lower end surface of the base tube 31, and the rubber seal ring is placed in the annular seal groove and fixed to the bottom plate 33 by bolts. The position of the airtight seal is located on the inner side of the fixing bolts. Figure 3 shown.

[0038] The outer ring reactor is hoisted to the top of the base 3 and slowly dropped down until it falls on the bottom plate 33 of the base. After the outer ring reactor is installed, a plurality of stoppers 9 are installed on the upper flange of the base tube 31 of the base.

[0039] The secondary annular reactor is lifted to the top of the outer annular reactor and slowly lowered until it falls on the bottom plate of the outer annular reactor. After the secondary annular reactor is installed, multiple stoppers are installed on the cover plate of the outer annular reactor along the inner edge circumference.

[0040] The inner layer of the annular reactor is lifted to the top of the second layer of the annular reactor, and slowly dropped until it falls on the bottom plate of the second layer of the annular reactor. After the inner layer of the annular reactor is assembled, a plurality of stoppers 9 are installed along the inner edge circumference on the cover plate of the second layer of the annular reactor, thus completing the assembly of the three annular reactors.

[0041] like Figure 1 As shown, after the three annular reactors are assembled, the pressure-equalizing cover inner cylinder 4 is finally assembled, and the pressure-equalizing cover inner cylinder 4 is hung just above the inner annular reactor and slowly dropped until it falls on the bottom plate of the inner annular reactor. After the pressure-equalizing cover inner cylinder 4 is assembled, a plurality of stoppers 9 are installed on the cover plate of the inner annular reactor along the inner edge circumference, and the assembly is completed.

[0042] like Figure 2 As shown, the pressure-equalizing hood 2 is fixed on the cover plate of the pressure-equalizing hood inner tube 4, and the cylinder 5 is fixed on the bottom plate 33 of the base; the cylinder 5 is against the bottom plate of the pressure-equalizing hood inner tube 4, pushing the pressure-equalizing hood inner tube 4 to rise, driving the annular reactors on its outer layer to rise in sequence, and after the pressure-equalizing hood inner tube 4 and all the annular reactors rise to their positions, the latch is locked on the block 9, and the cylinder is deflated and falls to reset, forming air insulation between the cylinder and the annular reactors.

[0043] All the annular reactors described here are raised to the position, that is, the lower flange of the raised annular reactor contacts the stopper 9 installed on the annular reactor mounted thereon.

[0044] The cylinder 5 of this embodiment is made of a multi-section epoxy resin glass fiber winding tube set, which is a technology known to those skilled in the art. A flange connected and fixed to the bottom plate of the base is provided at the bottom of the lowest section, and a first air nozzle 10 connected to the cylinder is provided on the bottom plate. The compressed air pumped out by the air compressor enters the cylinder through the first air pipe 6 and the first air nozzle 10, pushing the cylinder to rise and fall.

[0045] Furthermore, the vehicle-mounted liftable high-voltage test reactor of this embodiment has a capacitive voltage divider arranged on the base frame, and the capacitive voltage divider is located on the outside of the vehicle-mounted liftable high-voltage test reactor; the height and rated voltage of the capacitive voltage divider are the same as those of the outer ring-shaped reactor, and is used for test voltage measurement.

[0046] For the vehicle-mounted lifting high-voltage test reactor of this embodiment, when the annular reactors need to work in series, the cylinder 5 takes in air through the first air nozzle 10 and rises, first pushing the pressure-equalizing hood 2 to rise, and the lower flange of the inner tube 4 of the pressure-equalizing hood touches the block on the inner annular reactor, which drives the inner annular reactor to rise, and the lower flange of the inner annular reactor touches the block on the second-layer annular reactor, which drives the second-layer annular reactor to rise, and the lower flange of the second-layer annular reactor touches the block on the outer-layer annular reactor, which drives the outer-layer annular reactor to rise, and the pressure-equalizing hood and the three annular reactors are all raised into place, and the pins are locked. Afterwards, the cylinder is deflated and falls back to its original position, forming air insulation between it and the annular reactor, as shown in the figure. Figure 2 As shown. During the test, the blower introduces air through the air pipe 7 and the second air nozzle 33, forming a high-speed airflow from bottom to top in the hollow inner cavity of the annular reactor, thereby enhancing the heat dissipation of the inner wall of the annular reactor. After the test is completed, the cylinder 5 takes in air again and rises to the bottom plate of the inner cylinder 4 of the pressure equalizing cover, all the pins are withdrawn, and the cylinder 5 deflates to catch the pressure equalizing cover 2 and the annular reactor, which fall from the inside to the outside to the corresponding bottom plate.

[0047] For the vehicle-mounted lifting high-voltage test reactor of this embodiment, when the annular reactors need to work in parallel, the cylinder 5 rises upward by taking in air through the first air nozzle 10, first pushing the pressure-equalizing hood 2 to rise, and the lower flange of the inner cylinder 4 of the pressure-equalizing hood abuts against the block on the inner annular reactor, which drives the inner annular reactor to rise, and the lower flange of the inner annular reactor abuts against the block on the second-layer annular reactor, which drives the second-layer annular reactor to rise, and the lower flange of the second-layer annular reactor abuts against the block on the outer-layer annular reactor, which drives the outer-layer annular reactor to rise, and the pressure-equalizing hood and the three annular reactors are all raised into place, and the pins are locked. Pull out the pins on all the blocks on the lower-layer annular reactor and the outer-layer annular reactor, so that the inner-layer annular reactor and the second-layer annular reactor fall to the corresponding bottom plates in turn. Afterwards, the cylinder is deflated and falls to reset, forming air insulation between the annular reactor and the annular reactor, such as Figure 3As shown. During the test, the blower introduces dry compressed air through the air pipe 7 and the second air nozzle 33, forming a high-speed airflow from bottom to top in the hollow inner cavity of the nested annular reactor, thereby enhancing the heat dissipation of the inner wall of the annular reactor. After the test is completed, the cylinder 5 takes in air again and rises to the bottom plate of the inner cylinder 4 of the pressure-equalizing cover. All the pins are withdrawn, and the cylinder 5 deflates to catch the pressure-equalizing cover 2 and the annular reactor, which fall from the inside to the outside in turn onto the corresponding bottom plate.

[0048] The vehicle-mounted lifting high-voltage test reactor, air compressor, blower and capacitor voltage divider of this embodiment are fixed together on the chassis. Before transportation, all the annular reactors are placed on their corresponding bottom plates and stacked together, and the voltage grading cover is dropped to below the height of the annular reactor. This reduces the overall height and the center of gravity, greatly increases the transportation stability, and effectively solves the problem of road transportation of high-voltage test reactors above 500kV. Example 2

[0049] The present embodiment is a vehicle-mounted lifting high-voltage test inductor, including three annular inductors 1, a pressure equalizing cover 2, a base 3, a pressure equalizing cover inner cylinder 4, a block 9, a cylinder 5, a first air pipe 6, a second air pipe 7, an air compressor and a blower.

[0050] Based on the structure of Example 1, this embodiment does not use latch locking. When the cylinder pushes the inner cylinder of the pressure-equalizing cover to rise, the outer annular reactors are sequentially raised. After the inner cylinder of the pressure-equalizing cover and all the annular reactors are raised to their proper positions, the cylinder stops rising and remains stationary. During the test, the air compressor is adjusted to replenish air to the cylinder to compensate for the leakage of the cylinder, so as to maintain the cylinder's lifting height unchanged.

[0051] The present embodiment is a vehicle-mounted lifting high-voltage test reactor. When the annular reactors need to work in series, the cylinder 5 takes in air through the first air nozzle 10 and rises, first pushing the pressure-equalizing hood 2 to rise. After the lower flange of the inner cylinder 4 of the pressure-equalizing hood touches the block on the inner annular reactor, the inner annular reactor is driven to rise. After the lower flange of the inner annular reactor touches the block on the second annular reactor, the second annular reactor is driven to rise. After the lower flange of the second annular reactor touches the block on the outer annular reactor, the outer annular reactor is driven to rise. After the pressure-equalizing hood and the three annular reactors have risen into place, the cylinder stops rising and remains in position. Figure 1 As shown. During the test, the blower introduces air through the air pipe 7 and the second air nozzle 33, forming a high-speed airflow from bottom to top in the hollow inner cavity of the annular reactor, thereby enhancing the heat dissipation of the inner wall of the annular reactor. After the test is completed, the cylinder 5 is deflated and descends, and the pressure grading cover 2 and the annular reactor fall from the inside to the outside to the corresponding bottom plate.

[0052] Compared with the embodiment 1, the advantage of the embodiment 2 is that the latch is not used for locking during the test, thus simplifying the operation steps.

[0053] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

[0054] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A vehicle-mounted lifting high-voltage test reactor, characterized in that: The vehicle-mounted lifting type high-voltage test reactor is vertically installed on the base frame as a whole. The vehicle-mounted lifting type high-voltage test reactor includes multiple annular reactors, a pressure-equalizing cover, an inner cylinder of the pressure-equalizing cover, a base and a cylinder. The multiple annular reactors and the inner cylinder of the pressure-equalizing cover are sequentially mounted from the outside to the inside. The outer annular reactor falls on the bottom plate of the base, the second annular reactor falls on the bottom plate of the outer annular reactor, and finally the inner cylinder of the pressure-equalizing cover falls on the bottom plate of the inner annular reactor; the base is fixed on the base frame, the pressure-equalizing cover is fixed on the cover plate of the inner cylinder of the pressure-equalizing cover, and the cylinder is fixed on the bottom plate of the base; The cylinder is made of a multi-section epoxy resin glass fiber winding tube set. A plurality of blocks for limiting the raised annular reactor and the inner tube of the pressure grading cover are arranged on the top of the base and the cover plate of each annular reactor; the blocks are provided with latches for locking the raised annular reactor and the inner tube of the pressure grading cover; The lowermost section of the cylinder is provided with a flange fixed to the bottom plate of the base and a first air nozzle, the first air nozzle is connected to an air compressor through a first air pipe, the air compressor is fixed on the base frame, and the air compressor is located next to the vehicle-mounted lifting high-voltage test reactor; The base comprises a base tube and a base bottom plate; a second air nozzle is arranged on the base bottom plate, and the second air nozzle is connected to the blower through a second air pipe; A grading ring is installed on the cover of each toroidal reactor to shield the metal tip inside it.

2. The vehicle-mounted lifting and lowering high-voltage test reactor according to claim 1 is characterized in that: The inner cylinder of the pressure equalizing hood is located in the center of the pressure equalizing hood.

3. The vehicle-mounted lifting and lowering high-voltage test reactor according to claim 2 is characterized in that: The pressure equalizing cover is spherical in shape as a whole, and is made of low-magnetic steel thin tube rings arranged in an orderly manner, with a spacing of 10mm between each layer. A circular hole for introducing the bellows is opened on the pressure equalizing cover.

4. The vehicle-mounted lifting and lowering high-voltage test reactor according to claim 1 is characterized in that: A capacitive voltage divider is arranged on the chassis and is located outside the vehicle-mounted lifting type high-voltage test reactor. The height and rated voltage of the capacitive voltage divider are the same as those of the outer ring reactor and is used for test voltage measurement.

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