CN218447467U - Dehumidification device for oil-immersed power transformer - Google Patents
Dehumidification device for oil-immersed power transformer Download PDFInfo
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- CN218447467U CN218447467U CN202222485784.4U CN202222485784U CN218447467U CN 218447467 U CN218447467 U CN 218447467U CN 202222485784 U CN202222485784 U CN 202222485784U CN 218447467 U CN218447467 U CN 218447467U
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Abstract
The utility model belongs to the technical field of the transformer technique and specifically relates to a dehydrating unit for oil-immersed power transformer, including the transformer, the bottom fixed mounting of transformer has the oil tank, and heating mechanism is installed at the top of transformer, and heating mechanism includes the case that induced drafts, and the top fixed mounting of the case that induced drafts has the heating cabinet, and the inside switch-on of heating cabinet and heating cabinet, the top fixed mounting of heating cabinet has the air-supply line, and the exit end fixed mounting of the case that induced drafts has the exhaust pipe, the exit end and the inside switch-on of transformer of exhaust pipe. The utility model discloses a heating pipe heats leading-in air, and then can get rid of the moisture in the air, and then can be with inside the leading-in transformer of dry air, this just can effectively avoid humid air to get into the transformer and cause the influence to its insulating nature.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to an oil-immersed power transformer is with dehydrating unit.
Background
The transformer is a device for changing current and voltage by utilizing the principle of electromagnetic induction, the transformer is usually used for voltage lifting, matching resistance, safety isolation and the like, main components comprise a primary coil, a secondary coil and an iron core which are arranged in a box, the transformer has certain requirements on the humidity of the environment, the higher the internal humidity is, the poorer the insulativity of the transformer is, if the humidity is too high, the moisture in the air can cause the aging and damage of insulating layers of the primary coil and the secondary coil, particularly at night, the air humidity is more serious, the insulativity in the transformer is lower when the external humidity is higher, accidents are easily caused, the traditional transformer only prevents the penetration of the moisture by the sealing property, and the transformer is also provided with a specially-arranged moisture-proof device, but the effect is not ideal and has certain improvement space;
the existing dehumidifying device for the transformer has the defects that the function is not complete enough, and the existing dehumidifying device for the transformer cannot process air in a first step when the air is absorbed, so that moisture in the air enters the transformer, and the insulation of the transformer is poor, damage and accidents are easily caused, and subsequent work is influenced; the water system of the insulating oil in the oil tank is not perfect enough, and the insulating oil in the oil tank is easy to permeate water vapor, so that the insulating oil in the oil tank cannot work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the prior treatment defect that air moisture can not be carried out exists in the prior art, and providing a dehumidifying device for an oil-immersed power transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dehydrating unit for oil-immersed power transformer, includes the transformer, the bottom fixed mounting of transformer has the oil tank, heating mechanism is installed at the top of transformer, heating mechanism is including the case that induced drafts, the top fixed mounting of case that induced drafts has the heating cabinet, the inside switch-on of heating cabinet and case that induced drafts, the top fixed mounting of heating cabinet has the air-supply line, the exit end fixed mounting of case that induced drafts has the exhaust pipe, the exit end and the inside switch-on of transformer of exhaust pipe.
Preferably, the axial-flow impeller is rotatably installed on the inner side of the air suction box, the heating box is fixedly provided with a plurality of heating pipes on the inner side, and the heating pipes are uniformly distributed in the heating box.
Preferably, a first bevel gear is coaxially and fixedly mounted below the axial flow impeller, a motor is fixedly mounted on the outer side of the air suction box, a second bevel gear is fixedly mounted on an output shaft of the motor, and the second bevel gear is meshed with the first bevel gear.
Preferably, a dehumidifying component is mounted on the outer side of the oil tank, and the dehumidifying component comprises an oil cylinder, a sliding rod, a piston, a mounting seat, a connecting rod and an eccentric wheel; the oil cylinder is fixedly installed in the outer side of the oil tank, the sliding rod penetrates through the top wall of the oil cylinder and is in sliding connection with the oil cylinder, the piston is fixedly installed at the bottom of the piston and is in sliding connection with the inner wall of the oil cylinder, the installation seat is fixedly installed at the top of the sliding rod, the eccentric wheel is rotatably installed in the outer side of the air suction box, the bottom end of the connecting rod is hinged to the installation seat, and the top end of the connecting rod is rotatably connected with the outer edge of the eccentric wheel through a pin shaft.
Preferably, the inner side of the air suction box is rotatably provided with a third bevel gear, and the third bevel gear is coaxially and fixedly connected with the eccentric wheel and meshed with the first bevel gear.
Preferably, a dehumidifying component is mounted on the outer side of the oil cylinder, and the dehumidifying component comprises a first one-way valve, an oil inlet pipe, a second one-way valve, an oil outlet pipe and a drying pipe; the first one-way valve is fixedly arranged at the inlet end of the oil cylinder, the inlet end of the oil inlet pipe is communicated with the inside of the oil tank, and the outlet end of the oil inlet pipe is communicated with the inlet end of the first one-way valve; the second one-way valve is fixedly installed at the outlet end of the oil cylinder, one end of the oil outlet pipe is communicated with the outlet end of the second one-way valve, the other end of the oil outlet pipe is communicated with the drying pipe, and the outlet end of the drying pipe is communicated with the inside of the oil tank.
The utility model provides a pair of dehydrating unit for oil-immersed power transformer, beneficial effect lies in: the heating pipe heats the introduced air, so that the moisture in the air can be removed, and the dried air can be introduced into the transformer, thereby effectively avoiding the influence of the wet air entering the transformer on the insulativity of the transformer.
Drawings
Fig. 1 is a schematic structural view of a dehumidifying device for an oil-immersed power transformer according to the present invention;
fig. 2 is a schematic structural view of a heating mechanism of a dehumidifying device for an oil-immersed power transformer according to the present invention;
fig. 3 is a schematic view of a partial structure of a dehumidification device for an oil-immersed power transformer according to the present invention;
fig. 4 is the utility model provides a dehumidifying device's for oil-immersed power transformer dehumidification mechanism's schematic structure.
In the figure: the device comprises a transformer 1, an oil tank 2, a heating mechanism 3, an air suction box 31, a heating box 32, an axial-flow impeller 33, a heating pipe 34, an air inlet pipe 35, an exhaust pipe 36, a first bevel gear 37, a second bevel gear 38, a third bevel gear 39, a motor 30, a dehumidifying mechanism 4, an oil cylinder 41, a sliding rod 42, a piston 43, a mounting seat 44, a connecting rod 45, an eccentric wheel 46, a dehumidifying component 47, a first one-way valve 471, an oil inlet pipe 472, a second one-way valve 473, an oil outlet pipe 474 and a drying pipe 475.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1:
referring to fig. 1-3, a dehydrating unit for an oil-immersed power transformer comprises a transformer 1, an oil tank 2 is fixedly mounted at the bottom of the transformer 1, a heating mechanism 3 is mounted at the top of the transformer 1, the heating mechanism 3 comprises an air suction box 31, a heating box 32 is fixedly mounted at the top of the air suction box 31, the heating box 32 is communicated with the inside of the air suction box 31, an air inlet pipe 35 is fixedly mounted at the top of the heating box 32, an exhaust pipe 36 is fixedly mounted at the outlet end of the air suction box 31, and the outlet end of the exhaust pipe 36 is communicated with the inside of the transformer 1. The exhaust duct 36 is used to introduce air into the interior of the transformer 1.
An axial flow impeller 33 is rotatably arranged on the inner side of the air suction box 31, a plurality of heating pipes 34 are fixedly arranged on the inner side of the heating box 32, and the heating pipes 34 are uniformly distributed in the heating box 32; a first bevel gear 37 is coaxially and fixedly installed below the axial-flow impeller 33, a motor 30 is fixedly installed on the outer side of the air suction box 31, a second bevel gear 38 is fixedly installed on an output shaft of the motor 30, and the second bevel gear 38 is meshed with the first bevel gear 37.
The working principle is as follows: firstly, the motor 30 is started to rotate the second bevel gear 38, so that the first bevel gear 37 drives the axial flow impeller 33 to rotate, the pressure inside the air suction box 31 is reduced, the air inlet pipe 35 introduces external air into the heating box 32, the introduced air is heated through the heating pipe 34, moisture in the air can be removed, dry air can be introduced into the transformer 1, and the influence of wet air entering the transformer 1 on the insulation performance of the transformer can be effectively avoided.
Example 2:
referring to fig. 1 to 4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that a dehumidifying assembly 47 is installed on the outside of the oil tank 2, and the dehumidifying assembly 47 includes an oil cylinder 41, a sliding rod 42, a piston 43, a mounting seat 44, a connecting rod 45 and an eccentric 46; the oil cylinder 41 is fixedly arranged on the outer side of the oil tank 2, the sliding rod 42 penetrates through the top wall of the oil cylinder 41 and is in sliding connection with the oil cylinder 41, the piston 43 is fixedly arranged at the bottom of the piston 43 and is in sliding connection with the inner wall of the oil cylinder 41, the mounting seat 44 is fixedly arranged at the top of the sliding rod 42, the eccentric wheel 46 is rotatably arranged on the outer side of the air suction box 31, the bottom end of the connecting rod 45 is hinged with the mounting seat 44, and the top end of the connecting rod 45 is rotatably connected with the outer edge of the eccentric wheel 46 through a pin shaft; a third bevel gear 39 is rotatably mounted on the inner side of the air suction box 31, and the third bevel gear 39 is coaxially and fixedly connected with an eccentric wheel 46 and meshed with the first bevel gear 37.
A dehumidifying component 47 is installed on the outer side of the oil cylinder 41, and the dehumidifying component 47 comprises a first one-way valve 471, an oil inlet pipe 472, a second one-way valve 473, an oil outlet pipe 474 and a drying pipe 475; the first one-way valve 471 is fixedly installed at the inlet end of the oil cylinder 41, the inlet end of the oil inlet pipe 472 is communicated with the inside of the oil tank 2, and the outlet end of the oil inlet pipe 472 is communicated with the inlet end of the first one-way valve 471; the second check valve 473 is fixedly installed at the outlet end of the oil cylinder 41, one end of the oil outlet pipe 474 is connected to the outlet end of the second check valve 473, the other end of the oil outlet pipe 474 is connected to the drying pipe 475, and the outlet end of the drying pipe 475 is connected to the inside of the oil tank 2.
The working principle is as follows: firstly, the motor 30 is started to enable the second bevel gear 38 to rotate, so that the first bevel gear 37 drives the axial flow impeller 33 to rotate, the pressure inside the air suction box 31 is reduced, the air inlet pipe 35 guides outside air into the heating box 32, then the guided air is heated through the heating pipe 34, moisture in the air can be removed, and then dry air can be guided into the transformer 1, and therefore the influence of wet air entering the transformer 1 on the insulation performance of the transformer can be effectively avoided;
when the first bevel gear 37 rotates, the third bevel gear 39 can be driven to rotate, so that the eccentric wheel 46 rotates, and the connecting rod 45 drives the slide rod 42 and the piston 43 to slide up and down in a reciprocating manner;
when the piston 43 slides upward, the pressure inside the oil cylinder 41 decreases, which makes the first check valve 471 lead the insulating oil inside the oil tank 2 into the oil cylinder 41 through the oil inlet pipe 472; when the piston 43 slides downward, the pressure inside the oil cylinder 41 increases, which causes the second check valve 473 to introduce the insulating oil in the oil cylinder 41 into the drying pipe 475 through the oil outlet pipe 474, and the drying pipe 475 can absorb moisture in the insulating oil, and finally reintroduce the dried insulating oil into the oil tank 2; the circulation can ensure the insulativity of the insulating oil in the oil tank 2, and effectively avoid the problem of water in the insulating oil.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an oil-immersed power transformer dehydrating unit, includes transformer (1), its characterized in that, the bottom fixed mounting of transformer (1) has oil tank (2), heating mechanism (3) are installed at the top of transformer (1), heating mechanism (3) are including case (31) that induced drafts, the top fixed mounting of case (31) that induced drafts has heating cabinet (32), heating cabinet (32) and the inside switch-on of case (31) that induced drafts, the top fixed mounting of heating cabinet (32) has air-supply line (35), the exit end fixed mounting of case (31) that induced drafts has exhaust pipe (36), the exit end and the inside switch-on of transformer (1) of exhaust pipe (36).
2. The oil-immersed power transformer dehumidification device according to claim 1, wherein an axial-flow impeller (33) is rotatably mounted on the inner side of the air suction box (31), a plurality of heating pipes (34) are fixedly mounted on the inner side of the heating box (32), and the heating pipes (34) are uniformly distributed in the heating box (32).
3. The oil-immersed power transformer dehumidification device according to claim 2, wherein a first bevel gear (37) is coaxially and fixedly mounted below the axial flow impeller (33), a motor (30) is fixedly mounted on the outer side of the air suction box (31), a second bevel gear (38) is fixedly mounted on an output shaft of the motor (30), and the second bevel gear (38) is meshed with the first bevel gear (37).
4. The oil-immersed power transformer dehumidification device according to claim 3, wherein a dehumidification component (47) is installed on the outer side of the oil tank (2), and the dehumidification component (47) comprises an oil cylinder (41), a sliding rod (42), a piston (43), a mounting seat (44), a connecting rod (45) and an eccentric wheel (46); oil cylinder (41) fixed mounting is in the outside of oil tank (2), slide bar (42) run through the roof of oil cylinder (41) and with oil cylinder (41) sliding connection, piston (43) fixed mounting in the bottom of piston (43) and with the inner wall sliding connection of oil cylinder (41), mount pad (44) fixed mounting is at the top of slide bar (42), eccentric wheel (46) rotate the outside of installing at air suction box (31), the bottom of connecting rod (45) is articulated with mount pad (44), the top of connecting rod (45) is connected through the round pin axle rotation with the outer edge of eccentric wheel (46).
5. The oil-filled power transformer dehumidification device according to claim 4, wherein a third bevel gear (39) is rotatably mounted on the inner side of the air suction box (31), and the third bevel gear (39) is coaxially and fixedly connected with the eccentric wheel (46) and meshed with the first bevel gear (37).
6. The oil immersed power transformer dehumidification device according to claim 5, wherein a dehumidification component (47) is installed on the outer side of the oil cylinder (41), and the dehumidification component (47) comprises a first one-way valve (471), an oil inlet pipe (472), a second one-way valve (473), an oil outlet pipe (474) and a drying pipe (475); the first one-way valve (471) is fixedly installed at the inlet end of the oil cylinder (41), the inlet end of the oil inlet pipe (472) is communicated with the inside of the oil tank (2), and the outlet end of the oil inlet pipe (472) is communicated with the inlet end of the first one-way valve (471); the second one-way valve (473) is fixedly installed at the outlet end of the oil cylinder (41), one end of the oil outlet pipe (474) is communicated with the outlet end of the second one-way valve (473), the other end of the oil outlet pipe (474) is communicated with the drying pipe (475), and the outlet end of the drying pipe (475) is communicated with the inside of the oil tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485784.4U CN218447467U (en) | 2022-09-20 | 2022-09-20 | Dehumidification device for oil-immersed power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485784.4U CN218447467U (en) | 2022-09-20 | 2022-09-20 | Dehumidification device for oil-immersed power transformer |
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| Publication Number | Publication Date |
|---|---|
| CN218447467U true CN218447467U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222485784.4U Active CN218447467U (en) | 2022-09-20 | 2022-09-20 | Dehumidification device for oil-immersed power transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133530A (en) * | 2023-08-28 | 2023-11-28 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
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2022
- 2022-09-20 CN CN202222485784.4U patent/CN218447467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133530A (en) * | 2023-08-28 | 2023-11-28 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
| CN117133530B (en) * | 2023-08-28 | 2024-04-09 | 广东四会互感器厂有限公司 | Oil immersed high-voltage station transformer and manufacturing process thereof |
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