High-capacity high-impedance dry-type transformer for supergravity test

Abstract

The utility model relates to the technical field of transformers, in particular to a high-impedance dry-type transformer for a high-capacity supergravity test, which comprises a protection box, a door plate is movably connected to the front end of the protection box, a supporting plate is fixed at the bottom end of the protection box, and a transformer assembly is arranged at the front end in the protection box. A cooling mechanism is arranged on one side of the supporting plate below the protection box; the cooling mechanism comprises a water tank, the water tank is fixed to one side of the supporting plate below the protection box, a pump machine is embedded in the water tank, a refrigeration piece is installed at the bottom end in the water tank, a circulating pipe network is formed through a water passing pipe, a rotating pipe and a conveying pipe, and through cooperation of a fixing block and an installation block, the conveying pipe is stabilized; and through the water tank, the pump machine and the refrigeration sheet, refrigerated cooling liquid can be conveniently extracted and conveyed, a circulation form can be formed, the temperature in the protection box can be cooled, and the situation that the natural ventilation efficiency is too low, and load burdens on the transformer assembly are caused is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a high-impedance dry-type transformer for large-capacity ultra-gravity testing. Background Art

[0002] Large-capacity ultra-gravity test refers to the experiment on some objects or equipment under specific environmental conditions. During the experiment, the important power equipment in the distribution system is the high-impedance dry-type transformer, which maintains the stability of the voltage circuit and has the characteristics of being oil-free, flame-retardant, low in operating loss, and outstanding in disaster prevention capabilities, and is widely used.

[0003] The existing dry-type transformer is mainly composed of an internal coil and an iron core and an external box. The coil and the iron core are located inside the box, and the heat is usually dissipated through ventilation slots during use;

[0004] In the prior art, the coil core can be cooled by ventilation slots. However, during the operation of large-capacity ultra-gravity tests, the overall load of the circuit is large and has a high impedance effect. When the heat inside the box is too high, the ventilation slots cannot quickly dissipate the heat. Untimely heat dissipation puts a burden on the transformer body, accelerates aging, and even creates safety hazards. Summary of the invention

[0005] The purpose of the utility model is to provide a high-impedance dry-type transformer for large-capacity ultra-gravity testing, which can cool the internal temperature of the protection box to avoid low natural ventilation efficiency and load burden on transformer components, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-impedance dry-type transformer for large-capacity ultra-gravity test, comprising a protection box, a door panel is movably connected to the front end of the protection box, and a support plate is fixed to the bottom end of the protection box, a transformer assembly is arranged at the front end of the protection box, and a cooling mechanism is arranged on one side of the support plate below the protection box;

[0007] The cooling mechanism includes a water tank, which is fixed on one side of the support plate below the protection box, and a pump is embedded in the water tank. A refrigeration plate is installed at the bottom of the water tank, and a water pipe is passed through the top of the water tank. One end of the two water pipes that pass through the protection box is rotatably connected to a rotating tube, and the top of the rotating tube is connected to a transmission tube, and a fixed block is sleeved in the middle of the outer wall of the transmission tube.

[0008] Preferably, the water pipe is connected to the transmission pipe through a rotating pipe, and a rotating structure is formed between the rotating pipe and the water pipe.

[0009] Preferably, an upper filter screen is embedded in the top of the protection box, and a mounting block is fixed to the inner wall of the upper filter screen.

[0010] Preferably, a side filter is embedded at the rear end of the protection box, and a lower filter is embedded at the inner bottom end of the protection box.

[0011] Preferably, a mounting shell is fixed to one side of the outer wall of the protection box, and a driving mechanism is arranged inside the mounting shell.

[0012] Preferably, the driving mechanism comprises a motor, the motor is embedded in the mounting shell, a worm is connected to the power output end of the motor, and a worm wheel is fixed at a position of the outer wall of the rotating tube close to the worm.

[0013] Preferably, the driving mechanism further comprises upper blades, the upper blades are fixed above the outer wall of the rotating tube, and lower blades are arranged below the outer wall of the rotating tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A circulating pipe network is formed through water pipes, rotating pipes and transmission pipes, and the transmission pipes are stabilized through the cooperation of fixed blocks and mounting blocks. The refrigerated coolant is conveniently extracted and transported through water tanks, pumps and refrigeration plates, forming a circulation form to cool the internal temperature of the protection box, avoiding low natural ventilation efficiency and causing load burden on transformer components;

[0016] 2. The transmission of the motor, worm and worm gear drives the rotating tube to rotate the upper and lower blades, which can increase the air flow rate inside the protective box, allowing the cooling gas to diffuse quickly to improve the cooling effect. At the same time, it is discharged through the upper and lower filters to avoid accumulation, which may cause liquefied gas to be adsorbed on the transformer components and cause danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective box of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the water tank of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the transmission tube of the utility model.

[0022] Description of reference numerals:

[0023] 1. Protective box; 2. Door panel; 3. Support plate; 4. Transformer assembly; 5. Cooling mechanism; 501. Water tank; 502. Pump; 503. Refrigeration plate; 504. Water pipe; 505. Rotating pipe; 506. Transmission pipe; 507. Fixed block; 6. Mounting block; 7. Upper filter; 8. Side filter; 9. Lower filter; 10. Mounting shell; 11. Driving mechanism; 1101. Motor; 1102. Worm; 1103. Worm wheel; 1104. Upper fan blade; 1105. Lower fan blade. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution:

[0026] See also Figures 1 to 4 A high-impedance dry-type transformer for large-capacity ultra-gravity test includes a protection box 1, a door panel 2 is movably connected to the front end of the protection box 1, a support plate 3 is fixed to the bottom end of the protection box 1, a transformer assembly 4 is arranged at the front end of the protection box 1, and a cooling mechanism 5 is arranged on one side of the support plate 3 below the protection box 1; the cooling mechanism 5 includes a water tank 501, the water tank 501 is fixed to one side of the support plate 3 below the protection box 1, a pump 502 is embedded in the water tank 501, and a cooling plate 5 is installed at the bottom end of the water tank 501. 03. A water pipe 504 is passed through the top of the water tank 501. One end of the two water pipes 504 passing through the protective box 1 is rotatably connected with a rotating tube 505. The top of the rotating tube 505 is connected with a transmission tube 506. A fixed block 507 is sleeved on the middle position of the outer wall of the transmission tube 506. The water pipe 504 is connected to the transmission tube 506 through the rotating tube 505. A rotating structure is formed between the rotating tube 505 and the water pipe 504. An upper filter screen 7 is embedded in the top of the protective box 1. A mounting block 6 is fixed to the inner wall of the upper filter screen 7.

[0027] By adopting the above technical scheme, the transformer assembly 4 is embedded in the protection box 1, and the door panel 2 is convenient for opening and closing the switch for maintenance and repair. The support plate 3 increases the height of the protection box 1, and the water tank 501 is convenient to install. The refrigeration plate 503 embedded in the water tank 501 reduces the temperature of the coolant inside the water tank 501, and the coolant is pumped by the pump 502 and circulated through the water pipe 504, the rotating pipe 505 and the transmission pipe 506 to form a pipe network, which can reduce the stability of the inside of the protection box 1 and play a heat dissipation function. The upper filter 7 is used to facilitate air circulation to avoid accumulation. The cold air is liquefied when heated and affects the transformer assembly 4. At the same time, the mounting block 6 fixed by the upper filter 7 is fixedly connected to the fixed block 507, which is convenient for supporting and stabilizing the transmission pipe 506.

[0028] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, a side filter 8 is embedded at the rear end of the protective box 1, a lower filter 9 is embedded at the inner bottom end of the protective box 1, a mounting shell 10 is fixed to one side of the outer wall of the protective box 1, a driving mechanism 11 is arranged inside the mounting shell 10, and the driving mechanism 11 includes a motor 1101, the motor 1101 is embedded in the mounting shell 10, a worm 1102 is connected to the power output end of the motor 1101, a worm wheel 1103 is fixed at a position close to the outer wall of the rotating tube 505 and the worm 1102, the driving mechanism 11 also includes upper fan blades 1104, the upper fan blades 1104 are fixed above the outer wall of the rotating tube 505, and lower fan blades 1105 are arranged below the outer wall of the rotating tube 505.

[0029] By adopting the above technical solution, the motor 1101 fixed by the mounting shell 10 works to drive the worm 1102, thereby pushing the two worm wheels 1103 to drive the corresponding rotating tube 505 to rotate, and the rotating tube 505 is rotated and engaged with the water pipe 504 and the transmission pipe 506, and the coolant is transported while rotating. At the same time, the rotating tube 505 drives the upper fan blades 1104 and the lower fan blades 1105 to rotate, so as to introduce air from the side filter 8, and blow it to the corresponding upper filter 7 and lower filter 9 after cooling and pass it out, so as to improve air circulation and increase the heat dissipation effect, and at the same time avoid the situation where cold air accumulates and adsorbs the transformer component 4 to cause liquefaction.

[0030] Working principle: The protective box 1 and the door panel 2 are used to facilitate the assembly and protection of the transformer assembly 4. The protective box 1 is supported by the support plate 3 at the bottom, so that the upper filter 7 and the lower filter 9 can circulate air. The internal temperature of the water tank 501 is reduced by the refrigeration plate 503, and the coolant is drawn by the pump 502 and transported to the water pipe 504. The coolant is transported by the rotating tube 505 and the transmission tube 506 to form a circulation to reduce the internal temperature of the protective box 1. The transmission tube 506 can be fixed on the mounting block 6 to stabilize it with the fixed block 507. The motor 1101 inside the mounting shell 10 drives the worm 1102, thereby pushing the two worm gears 1103 to rotate the two rotating tubes 505, so that the upper fan blades 1104 and the lower fan blades 1105 rotate, and the air is introduced through the side filter 8 to form an airflow to blow to the upper filter 7 and the lower filter 9, thereby improving the air circulation and quickly dissipating the heat.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A high-impedance dry-type transformer for large-capacity ultra-gravity testing, comprising a protective box (1), characterized in that: The front end of the protection box (1) is movably connected to a door panel (2), and the bottom end of the protection box (1) is fixed with a support plate (3); the front end of the interior of the protection box (1) is provided with a transformer assembly (4), and a cooling mechanism (5) is provided on one side of the support plate (3) below the protection box (1); The cooling mechanism (5) comprises a water tank (501), the water tank (501) is fixed to one side of a support plate (3) below the protection box (1), and a pump (502) is embedded in the water tank (501), a cooling plate (503) is installed at the bottom of the water tank (501), and a water pipe (504) is passed through the top of the water tank (501), and one end of the two water pipes (504) passing through the protection box (1) is rotatably connected to a rotating pipe (505), and the top of the rotating pipe (505) is connected to a transmission pipe (506), and a fixed block (507) is sleeved at the middle position of the outer wall of the transmission pipe (506).

2. A high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 1, characterized in that: The water pipe (504) is connected to the transmission pipe (506) through the rotating pipe (505), and a rotating structure is formed between the rotating pipe (505) and the water pipe (504).

3. A high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 1, characterized in that: An upper filter screen (7) is embedded at the top of the protection box (1), and a mounting block (6) is fixed to the inner wall of the upper filter screen (7).

4. A high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 1, characterized in that: A side filter (8) is embedded at the rear end of the protection box (1), and a lower filter (9) is embedded at the inner bottom end of the protection box (1).

5. The high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 1 is characterized in that: A mounting shell (10) is fixed to one side of the outer wall of the protection box (1), and a driving mechanism (11) is arranged inside the mounting shell (10).

6. A high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 5, characterized in that: The driving mechanism (11) comprises a motor (1101), the motor (1101) is embedded in the interior of the mounting shell (10), and a worm (1102) is connected to the power output end of the motor (1101), and a worm wheel (1103) is fixed at a position close to the outer wall of the rotating tube (505) and the worm (1102).

7. A high-impedance dry-type transformer for large-capacity ultra-gravity testing according to claim 5, characterized in that: The driving mechanism (11) further comprises an upper fan blade (1104), wherein the upper fan blade (1104) is fixed above the outer wall of the rotating tube (505), and a lower fan blade (1105) is arranged below the outer wall of the rotating tube (505).

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