CN214753287U

CN214753287U - Breathing device for transformer

Info

Publication number: CN214753287U
Application number: CN202120780242.2U
Authority: CN
Inventors: 吴欣恬
Original assignee: Nantong Power Supply Co Of State Grid Jiangsu Electric Power Co; Nantong Tongming Group Co ltd
Current assignee: Nantong Power Supply Co Of State Grid Jiangsu Electric Power Co; Nantong Tongming Group Co ltd; Nantong Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-16
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a breathing device for transformer, including controller, transformer body and respirator, the controller is installed on the transformer body, install pressure sensor and temperature sensor in the transformer body, the respirator passes through the pipeline and links to each other with the transformer body, the respirator includes the trunk line, and rotating device has been installed to the upper end of trunk line, and the internally mounted of trunk line has rotated the piston, and the both sides of rotating the piston have two bypass pipelines, and what two bypass pipelines were regarded as air inlet and gas vent respectively, the air inlet and exhaust department have installed the drying cabinet, have placed the drier in the drying cabinet for handle the humidity of the interior air of air inlet end and the moisture of gas outlet end, install the electromagnetism proportional valve on the pipeline of gas vent, the device can the operation of automatic control respirator inner piston through the controller, the exhaust end and the air inlet end are switched in time, and the situation that the piston is not switched in place is avoided.

Description

Breathing device for transformer

Technical Field

The utility model belongs to the technical field of electric power, a respiratory device for transformer is related to.

Background

The transformer breather is a circular container, the upper end of the transformer breather is connected with an oil conservator through a pipeline, and the lower end of the transformer breather is provided with a hole communicated with the atmosphere. When the transformer operates, the transformer oil can expand with heat and contract with cold due to the change of temperature, the oil level can rise or fall in the oil conservator along with the change of temperature, the oil conservator generates air suction and exhaust phenomena, air enters and exits the oil conservator through a respirator, moisture entering the transformer oil is reduced, the aging speed of the transformer oil is slowed down, and the performance degradation of the transformer oil is prevented. The air inlet end and the air outlet end of the existing respirator are mostly switched by adopting different pipelines and pistons. However, the internal pressure of the transformer is required to be increased when the piston is switched, the piston is switched under the action of the pressure, the control mode depends too much on the internal pressure of the transformer, and the piston can not be switched in place every time.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model relates to a respiratory device for transformer, the device pass through the operation that the piston can automatic control respirator internal piston, in time switch exhaust end and inlet end, avoid the piston to switch not in place.

The utility model provides a respiratory device for transformer, including controller, transformer body and respirator, the controller is installed on transformer body, this internal pressure sensor and the temperature sensor of having installed of transformer, the respirator passes through the pipeline and links to each other with transformer body, the respirator includes the trunk line, and rotating device has been installed to the upper end of trunk line, and the internally mounted of trunk line has rotated the piston, and the both sides of rotating the piston have two bypass pipelines, and what two bypass pipelines regarded as air inlet and gas vent respectively, the drying cabinet has been installed to air inlet and exhaust department, has placed the drier in the drying cabinet for handle the humidity of the interior air of air inlet end and the moisture of the end of giving vent to anger, install the electromagnetism proportional valve on the pipeline of gas vent.

The controller further comprises a control panel, a digital quantity output module, a signal detection module and an analog quantity output module, wherein parameter values can be set on the control panel to control the operation of the electromagnetic proportional valve and the rotating device, the digital quantity output module is connected with the rotating device, the signal detection module is connected with the temperature sensor and the pressure sensor, and the analog quantity output module is connected with the electromagnetic proportional valve.

Further the rotary piston side has the shrinkage pool, and the bottom of rotary piston has the hole to link to each other with the shrinkage pool of rotary piston side, the shrinkage pool is corresponding with the bypass pipeline, and rotary piston's upper end links to each other with rotating device, and rotary piston's side has the rubber insulation piece.

Further rotating device is including rotating motor and axis of rotation, it includes power input end and control end to rotate the motor, power input end passes through the connecting wire and inserts the power, the control end passes through the connecting wire and links to each other with the digital output module of controller, the upper end at rotary piston is installed to the axis of rotation, makes rotary piston pass through rotating device at the trunk line internal rotation.

Further pressure sensor includes sense terminal and signal transmission end, the sense terminal is installed in the inside of transformer, can detect the inside pressure value of transformer, signal transmission end links to each other with the controller through connecting, makes the parameter value that the controller can receive pressure sensor and detect.

Further temperature sensor includes sense terminal and signal transmission end, the sense terminal is installed in the inside of transformer, can detect the inside temperature value of transformer, signal transmission end links to each other with the controller through connecting, makes the parameter value that the controller can receive temperature sensor and detect.

The electromagnetic proportional valve further comprises a valve core and a control end, the valve core is arranged on the pipeline, and the control end is arranged on the valve core and is connected with an analog quantity output module of the controller through a connecting wire, so that the controller can automatically control the opening degree of the electromagnetic proportional valve.

Drawings

Fig. 1 is a schematic view of the overall structure of a breathing apparatus for a transformer of the utility model;

fig. 2 is a schematic view of a rotary piston structure in a breathing apparatus for a transformer according to the present invention.

In the figure: 1. a controller; 2. a transformer body; 3. a respirator; 4. a pressure sensor; 5. a temperature sensor; 6. a main pipeline; 7. a rotating device; 8. rotating the piston; 9. a bypass conduit; 10. an electromagnetic proportional valve.

Detailed Description

The following describes in detail a breathing apparatus for a transformer according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a breathing apparatus for a transformer, which comprises a controller 1, a transformer body 2 and a respirator 3, the controller 1 is arranged on a transformer body 2, a pressure sensor 4 and a temperature sensor 5 are arranged in the transformer body 2, the breather 3 is connected with the transformer body 2 through a pipeline, the breather 3 comprises a main pipeline 6, a rotating device 7 is arranged at the upper end of the main pipeline 6, a rotating piston 8 is arranged inside the main pipeline 6, two bypass pipelines 9 are arranged at two sides of the rotating piston 8, the two bypass pipelines 9 are respectively used as an air inlet and an air outlet, a drying box is arranged at the air inlet and the air outlet, a drying agent is placed in the drying box, the air outlet is used for processing the humidity of the inner air at the air inlet end and the moisture at the air outlet end, and an electromagnetic proportional valve 10 is installed on a pipeline of the air outlet.

According to the above, the controller 1 includes a control panel, a digital quantity output module, a signal detection module and an analog quantity output module, the control panel can be provided with parameter values to control the operation of the electromagnetic proportional valve 10 and the rotating device 7, the digital quantity output module is connected with the rotating device 7, the signal detection module is connected with the temperature sensor 5 and the pressure sensor 4, and the analog quantity output module is connected with the electromagnetic proportional valve 10.

As shown in fig. 2, the side of the rotary piston 8 is provided with a concave hole, the bottom of the rotary piston 8 is provided with a hole and is connected with the concave hole on the side of the rotary piston 8, the concave hole corresponds to the bypass pipeline 9, the upper end of the rotary piston 8 is connected with the rotating device 7, the side of the rotary piston 8 is provided with a rubber insulation sheet, so that the rotary piston 8 is tightly connected with the main pipeline 6 in the rotating process, and the connection between the air inlet and the air outlet is avoided.

According to the above, wherein rotating device 7 is including rotating motor and axis of rotation, the rotating motor includes power input end and control end, power input end passes through the connecting wire and inserts the power, the control end passes through the connecting wire and links to each other with controller 1's digital output module, the upper end at rotary piston 8 is installed to the axis of rotation, makes rotary piston 8 pass through rotating device 7 at 6 internal rotations of trunk line.

According to the above, the pressure sensor 4 includes a detection end and a signal transmission end, the detection end is installed inside the transformer and can detect the pressure value inside the transformer, and the signal transmission end is connected with the controller 1 through connection, so that the controller 1 can receive the parameter value detected by the pressure sensor 4.

According to the above, the temperature sensor 5 includes a detection end and a signal transmission end, the detection end is installed in the transformer and can detect the temperature value in the transformer, and the signal transmission end is connected with the controller 1 through connection, so that the controller 1 can receive the parameter value detected by the temperature sensor 5.

According to the above, the electromagnetic proportional valve 10 includes a valve core and a control end, the valve core is installed on the pipeline, and the control end is installed on the valve core and connected with the analog output module of the controller 1 through a connection line, so that the controller 1 can automatically control the opening degree of the electromagnetic proportional valve 10.

The operating principle of a breathing apparatus for a transformer is as follows: the controller 1 is connected with the temperature sensor 5 and the pressure sensor 4, so that the controller 1 can monitor the temperature value and the pressure value in the transformer in real time, the temperature parameter value and the pressure parameter value are set in the controller 1, when the temperature value and the pressure value in the transformer reach the set parameters, the controller 1 operates the rotating device 7, the rotating device 7 drives the rotating piston 8 to slowly rotate in the main pipeline 6 until the concave hole of the rotating piston 8 rotates to the exhaust port, the pressure in the transformer is reduced, the controller 1 stops operating the rotating device 7 until the pressure in the transformer is reduced to the parameter value set by the controller 1, in the process of reducing the pressure, the controller 1 gradually increases the opening degree of the electromagnetic proportional valve 10, the phenomenon that the pressure in the transformer is suddenly reduced too much, so that the transformer oil overflows from the pipeline into the breather 3, and the controller 1 operates the rotating device 7, the recess of the rotary piston 8 reaches the air outlet and delivers air into the transformer.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a respiratory device for transformer, its characterized in that, includes controller, transformer body and respirator, the controller is installed on the transformer body, this internal pressure sensor and the temperature sensor of having installed of transformer, the respirator passes through the pipeline and links to each other with the transformer body, the respirator includes the trunk line, and rotating device has been installed to the upper end of trunk line, and the internally mounted of trunk line has rotated the piston, and the both sides of rotating the piston have two bypass pipelines, and the air inlet and the gas vent are regarded as respectively to two bypass pipelines, the drying cabinet has been installed to air inlet and exhaust department, has placed the drier in the drying cabinet for handle the humidity of the interior air of inlet end and the moisture of the end of giving vent to anger, install the electromagnetism proportional valve on the pipeline of gas vent.

2. The breathing device for the transformer according to claim 1, wherein the controller comprises a control panel, a digital quantity output module, a signal detection module and an analog quantity output module, the control panel can be provided with parameter values to control the operation of the electromagnetic proportional valve and the rotating device, the digital quantity output module is connected with the rotating device, the signal detection module is connected with the temperature sensor and the pressure sensor, and the analog quantity output module is connected with the electromagnetic proportional valve.

3. The breathing apparatus for transformer according to claim 1, wherein the rotary piston has a recess in a side thereof, the rotary piston has a hole in a bottom thereof and is connected to the recess in the side thereof, the recess corresponding to the bypass passage, the rotary piston is connected to the rotating means at an upper end thereof, and the rotary piston has a rubber insulating sheet in a side thereof.

4. The breathing apparatus for transformer according to claim 2, wherein the rotating device comprises a rotating motor and a rotating shaft, the rotating motor comprises a power input end and a control end, the power input end is connected to a power supply through a connecting wire, the control end is connected to the digital output module of the controller through a connecting wire, and the rotating shaft is installed at the upper end of the rotating piston, so that the rotating piston rotates in the main pipeline through the rotating device.

5. The breathing apparatus for the transformer as claimed in claim 2, wherein the pressure sensor comprises a detection terminal and a signal transmission terminal, the detection terminal is installed inside the transformer and can detect the pressure value inside the transformer, and the signal transmission terminal is connected with the controller through a connection so that the controller can receive the parameter value detected by the pressure sensor.

6. The breathing device for the transformer as claimed in claim 2, wherein the temperature sensor comprises a detection terminal and a signal transmission terminal, the detection terminal is installed inside the transformer and can detect the temperature value inside the transformer, and the signal transmission terminal is connected with the controller through a connection so that the controller can receive the parameter value detected by the temperature sensor.

7. The breathing device for the transformer as claimed in claim 2, wherein the electromagnetic proportional valve comprises a valve core and a control end, the valve core is installed on the pipeline, and the control end is installed on the valve core and connected with the analog quantity output module of the controller through a connecting line, so that the controller can automatically control the opening degree of the electromagnetic proportional valve.