CN219037757U

CN219037757U - Radiator fin belt cleaning device of transformer

Info

Publication number: CN219037757U
Application number: CN202223152064.2U
Authority: CN
Inventors: 孟镇; 李斌; 李闻昊; 付一峰; 祝杰; 李永勤
Original assignee: Panjin Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; Jinzhou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC; State Grid Liaoning Electric Power Co Ltd
Current assignee: Panjin Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; Jinzhou Electric Power Supply Co Of State Grid Liaoning Electric Power Supply Co ltd; State Grid Corp of China SGCC; State Grid Liaoning Electric Power Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-16
Anticipated expiration: 2032-11-25

Abstract

The radiator fin cleaning device of the transformer comprises a travelling trolley, wherein a water tank is arranged at the front end of the travelling trolley; a sliding rail is longitudinally arranged on the travelling trolley, a sliding frame is installed on the sliding rail in a sliding fit manner, an electric screw rod is arranged on one side of the sliding frame in the vertical direction, and the sliding frame is fixedly connected with a screw nut on the electric screw rod and is used for driving the sliding frame to slide up and down along the sliding rail; a spray gun is arranged on the other side of the sliding frame, the inner cavity of the spray gun is of a venturi tube structure, and an inlet of the spray gun is communicated with an air pump arranged on the travelling trolley through an air pipe and is used for providing pressurized air for the spray gun; and a water inlet hole is arranged on the outer wall of the spray gun along the radial direction at the position corresponding to the throat section of the inner cavity after the diameter of the spray gun is reduced, and the water inlet hole is communicated with the water outlet of the water tank through an electromagnetic valve and a water pipe. The automatic water spraying cleaning device has the beneficial effects that the automatic water spraying cleaning device can automatically spray water to the radiator fins of the transformer, has a good cleaning effect, and saves time, labor and water; after cleaning, the water drops hung on the fins can be directly blown off and dried, so that the fins can be prevented from being rusted.

Description

Radiator fin belt cleaning device of transformer

Technical Field

The utility model relates to a cleaning device, in particular to a cleaning device for a transformer fin.

Background

The transformer oil in the oil immersed transformer exchanges heat in the radiator fins to release heat, so that the transformer cooling function is realized. However, if the fin surface of the radiator is covered with dirt such as dust and mud, the heat of the radiator is prevented from being dissipated, so that the transformer operates at a high temperature, and the operation capacity of the transformer is affected. Therefore, a worker is required to regularly rinse the radiator fins.

At present, workers often use water pipes or water guns to wash radiator fins, sometimes the workers stand in situ and wash the radiator fins by changing the injection angle of the water pipes; sometimes, the staff can move to wash, but only the water pipe can be lifted for cleaning aiming at the high position. Such cleaning can present two problems: 1. the flushing forces of the fins in the fin group are different, the flushing time is uneven, uneven flushing is easy to occur, the flushing effect is poor, and the time and the labor are wasted; 2. after the cleaning is finished, the water drops can hang on the surface of the fin, if the fin is in a overcast and rainy day and cannot be dried for a long time, rust can be formed, quality change can be formed after long-time repeated rust, macroscopic large-area rust can be formed on the surface of the fin, and heat dissipation performance and service life are seriously affected.

Disclosure of Invention

The utility model aims to provide a radiator fin cleaning device for a transformer, which has good cleaning effect, saves time, labor and water and can prevent the fins from being corroded.

The technical scheme of the utility model is as follows:

the radiator fin cleaning device of the transformer comprises a travelling trolley, wherein a water tank is arranged at the front end of the travelling trolley and used for storing fin cleaning water; a sliding rail is longitudinally arranged on the travelling trolley, a sliding frame is installed on the sliding rail in a sliding fit manner, an electric screw rod is arranged on one side of the sliding frame in the vertical direction, and the sliding frame is fixedly connected with a screw nut on the electric screw rod and is used for driving the sliding frame to slide up and down along the sliding rail;

a spray gun is arranged on the other side of the sliding frame, the inner cavity of the spray gun is of a venturi tube structure, and an inlet of the spray gun is communicated with an air pump arranged on the travelling trolley through an air pipe and is used for providing pressurized air for the spray gun; and a water inlet hole is arranged on the outer wall of the spray gun along the radial direction at the position corresponding to the throat section of the inner cavity after the diameter reduction, and the water inlet hole is communicated with the water outlet of the water tank through an electromagnetic valve and a water pipe and is used for supplying water for the spray gun.

As a further preference, trapezoidal sliding grooves are symmetrically arranged on two sides of the sliding rail, two rollers with trapezoidal outer edges are symmetrically arranged on two ends of the sliding frame, and the rollers are matched with the trapezoidal sliding grooves so as to facilitate the sliding of the sliding frame up and down.

As a further preferable mode, the motor of the electric screw is fixed on the travelling trolley, and the upper end of the screw is arranged at the upper end of one side of the sliding rail through the bearing seat and the bearing.

As a further preferable mode, limit switches are respectively arranged at the upper end and the lower end of the other side of the sliding rail, and two directional contacts of the motor controller of the electric screw are respectively connected with a power supply through the limit switches so as to realize reciprocating sliding of the sliding frame on the sliding rail.

Preferably, the water pipe is a metal hose, and one end of the water pipe is communicated with the water outlet of the water tank through a metal hard pipe.

The beneficial effects of the utility model are as follows:

1. because the inner cavity of the spray gun adopts a venturi tube structure, the inlet of the spray gun is communicated with an air pump arranged on the travelling trolley through an air pipe, a water inlet hole is arranged on the outer wall of the spray gun along the radial direction at the throat section of the inner cavity corresponding to the reduced diameter of the spray gun, and the water inlet hole is communicated with the water outlet of the water tank through an electromagnetic valve and a water pipe, so that the pressurized air can form abrupt acceleration to generate negative pressure after entering the inner cavity of the spray gun through the venturi tube structure, and water in the water tank is pumped out through the water inlet hole and sprayed out through the spray gun;

2. the sliding rail is longitudinally arranged on the travelling trolley, the sliding frame is arranged on the sliding rail in a sliding fit manner, an electric screw rod is arranged on one side of the sliding frame in the vertical direction, the sliding frame is fixedly connected with a screw nut arranged on the electric screw rod on one side of the sliding frame, and the spray gun is arranged on the other side of the sliding frame; therefore, the sliding frame and the spray gun can be driven to vertically and reciprocally slide along the sliding rail by controlling the rotation of the electric screw rod, and the spray gun can directly spray water to clean the radiator fins of the transformer by reciprocally moving, so that the cleaning effect is good, and time, labor and water are saved.

3. After cleaning, the electromagnetic valve is controlled to be closed, so that water flow can be cut off and enter the spray gun, and pressure air can be directly sprayed out through the spray gun, so that water drops hung on the fins can be directly blown off and dried, and corrosion of the fins can be avoided.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a right side view of the present utility model.

Fig. 3 is a partial enlarged view of fig. 1.

Fig. 4 is a cross-sectional view of the construction of the spray gun of the present utility model.

In the figure: the travelling trolley 1, the handle 2, the air pump 3, the air pipe 4, the sliding rail 5, the spray gun 6, the sliding frame 7, the water pipe 8, the water tank 9, the travelling wheel 10, the limit switch 11, the electric screw 12, the screw 13, the supporting plate 14 and the electromagnetic valve 15.

Detailed Description

As shown in fig. 1-4, the radiator fin cleaning device of the transformer comprises a travelling trolley 1, wherein four travelling wheels 10 are arranged at the bottom of the travelling trolley 1, a handle 2 is fixed at the rear end of the travelling trolley 1, a water tank 9 is arranged at the front end of the travelling trolley 1, and the bottom of the water tank 9 is communicated with a vehicle body inner cavity of the travelling trolley 1 and is used for storing fin cleaning water; the middle part on the travelling trolley 1 is fixed with a sliding rail 5 along the longitudinal direction, a sliding frame 7 is installed on the sliding rail 5 through sliding fit, an electric screw 12 is arranged on one side of the sliding frame 7 along the vertical direction, and the sliding frame 7 is fixedly connected with a nut 13 on the electric screw 12 and used for driving the sliding frame 7 to slide up and down along the sliding rail 5.

The sliding frame 7 comprises two mounting plates 701, two rollers 702 are symmetrically arranged between two ends of the two mounting plates 701 through wheel shafts, and the outer edges of the sections of the rollers 702 are trapezoidal and matched with the trapezoidal sliding grooves so as to facilitate the sliding frame 7 to slide up and down. The sliding frame 7 is fixedly connected with a nut 13 on the electric screw 12 through a mounting plate 701 on one side.

A supporting plate 14 is fixed on a mounting plate 701 at the other side of the sliding frame 7, and a spray gun 6 is fixed through the supporting plate 14, wherein the inner cavity of the spray gun 6 is of a venturi tube structure, namely, the spray gun comprises an inlet section 601, a reducing section 602, a throat section 603 and a diffusion section 604 which are sequentially arranged, and the inlet of the spray gun 6 is communicated with an air pump 3 arranged on the travelling trolley 1 through an air pipe 4 and is used for providing air with pressure for the spray gun 6; a water inlet hole 605 is arranged on the outer wall of the spray gun 6 corresponding to the throat section of the inner cavity after the diameter is reduced, and the outer end of the water inlet hole 605 is communicated with the water outlet of the water tank 9 through an electromagnetic valve 15 and a water pipe 8 and is used for supplying water to the spray gun 6.

The electric screw rod 12 is arranged in parallel with the sliding rail 5, a motor of the electric screw rod 12 is fixed on the travelling trolley 1, and the upper end of the screw rod is arranged at the upper end of one side of the sliding rail 5 through a bearing seat and a bearing.

Limit switches 11 are respectively fixed at the upper end and the lower end of the other side of the sliding rail 5, two directional contacts of a motor controller of the electric screw 12 are respectively connected with a power supply through the limit switches 11, and the sliding frame 7 slides to an upper dead center and a lower dead center to respectively trigger the corresponding limit switches 11 so as to realize reciprocating sliding of the sliding frame 7 on the sliding rail 5.

The water pipe 8 is a metal hose, and one end of the water pipe is communicated with the water outlet of the water tank 9 through a metal hard pipe. The control switch of the air pump 3 and the electromagnetic valve 15 is arranged on the handle 2 of the travelling trolley 1.

During operation, the travelling trolley 1 is manually pushed to advance until the spray gun 6 is aligned with the first fin, the air pump 3 is started, the electromagnetic valve 15 is opened, the motor of the electric screw rod 12 is started, the electric screw rod 12 is driven to rotate, and the sliding frame 7 is driven to slide upwards along the sliding rail 5 through the nut 13. When the limit switch 11 above is triggered, the electric screw rod 12 is reversed, so that the sliding frame 7 is shifted downwards until the limit switch 11 below is triggered, and then the sliding frame is shifted upwards in a reversing way, thereby realizing up-and-down reciprocating motion.

In the reciprocating motion process of the sliding frame 7, the pressurized air enters the inner cavity of the spray gun 6 and then forms abrupt acceleration through a venturi tube structure to generate negative pressure, so that water in the water tank 9 can be pumped into the spray gun 6 through the water inlet hole and the water pipe 8 and is sprayed out from an outlet of the spray gun 6 through gas driving; therefore, the staff can realize equidistant direct spraying only by horizontally moving and aligning the trolley with each fin, and the cleaning effect is very good. After cleaning, the electromagnetic valve 15 is closed, water flow can be cut off to enter the spray gun 6, so that pressure air is directly sprayed out through the spray gun 6, and water drops hung on the fins can be directly blown off by air to be dried, so that the fins can be prevented from being corroded due to long-time non-drying.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The utility model provides a radiator fin belt cleaning device of transformer, includes walking dolly, characterized by: a water tank is arranged at the front end of the travelling trolley and is used for storing fin cleaning water; a sliding rail is longitudinally arranged on the travelling trolley, a sliding frame is installed on the sliding rail in a sliding fit manner, an electric screw rod is arranged on one side of the sliding frame in the vertical direction, and the sliding frame is fixedly connected with a screw nut on the electric screw rod and is used for driving the sliding frame to slide up and down along the sliding rail;

2. The device for cleaning the radiator fins of the transformer according to claim 1, wherein: the sliding rail is characterized in that trapezoidal sliding grooves are symmetrically formed in two sides of the sliding rail, two rollers with trapezoidal outer edges are symmetrically arranged at two ends of the sliding frame, and the rollers are matched with the trapezoidal sliding grooves so as to facilitate the sliding of the sliding frame up and down.

3. The device for cleaning the radiator fins of the transformer according to claim 1, wherein: the motor of the electric screw rod is fixed on the travelling trolley, and the upper end of the screw rod is arranged at the upper end of one side of the sliding rail through the bearing seat and the bearing.

4. A radiator fin cleaning apparatus of a transformer according to claim 3, characterized in that: limit switches are respectively arranged at the upper end and the lower end of the other side of the sliding rail, and two direction contacts of a motor controller of the electric screw are respectively connected with a power supply through the limit switches so as to realize reciprocating sliding of the sliding frame on the sliding rail.

5. The device for cleaning the radiator fins of the transformer according to claim 1, wherein: the water pipe is a metal hose, and one end of the water pipe is communicated with the water outlet of the water tank through a metal hard pipe.