CN-224204036-U - Double-floating ball gas relay for transformer

CN224204036UCN 224204036 UCN224204036 UCN 224204036UCN-224204036-U

Abstract

A double-floating ball gas relay for a transformer belongs to the technical field of relays, and is arranged on an oil pipeline of a main connecting pipe of the transformer, oil flows in the oil pipeline, and the double-floating ball gas relay further comprises an upper shell, a probe, a support, an upper float shaft, an upper float swing arm, an upper float magnet frame, a limiting block, a limiting seat, a first fixing frame, a volume contact, a lower limit and a heavy hammer, wherein the probe is arranged below the upper shell, and the top end of the support is connected with the bottom end of the upper shell. The device has the highly intelligent and reliable monitoring alarm function, can sense various abnormal conditions sharply in actual operation, sends out alarm signals through different trigger mechanisms under abnormal conditions of gas accumulation, oil flow surge, oil leakage and the like, and timely adopts corresponding measures to ensure the normal working performance and reliability of the gas relay.

Inventors

FENG RUI
LIU WEI
JIANG HE
LI QIAN

Assignees

沈阳明远电器设备有限公司
沈阳明远电气科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250409

Claims (9)

1. The double-floating ball gas relay for the transformer is arranged on an oil pipeline of a main connecting pipe of the transformer, and oil flows in the oil pipeline, and is characterized by further comprising: An upper housing; The probe is arranged below the upper shell; the top end of the bracket is connected with the bottom end of the upper shell; the upper float shaft is rotatably arranged on the bracket along the horizontal direction; The upper float swing arm is fixedly arranged on the upper float shaft; the upper floater is fixedly arranged on the upper floater swing arm; The upper floater magnet frame is arranged on the upper floater swing arm, and a magnet is arranged in the upper floater magnet frame; The limiting block is arranged in the middle of the upper floater swing arm; The limiting seat is arranged on the bracket; the first fixing frame is arranged on the bracket; The volume contact is arranged on the first fixing frame, when approaching to the magnet in the upper float magnet frame, the volume contact is closed, and meanwhile, the limiting block and the limiting seat are clamped, and the volume contact is kept in an alarm state; the lower limit is arranged on the bracket and used for limiting the upper floater; the heavy hammer is arranged at the tail end of the upper float swing arm.
2. The double-floating ball gas relay for a transformer according to claim 1, further comprising: the flow velocity shaft is rotatably arranged on the bracket; the flow rate baffle is fixedly arranged on the flow rate shaft; one side of the tension spring is connected with the top end of the flow velocity baffle; the tension spring connecting rod is connected with the other side of the tension spring, and the tension spring connecting rod is connected with the bracket; The adjusting nut is arranged at one end of the tension spring connecting rod, which is away from the tension spring.
3. The double-floating ball gas relay for a transformer according to claim 2, further comprising: The first magnet frame is arranged at the bottom end of the flow velocity baffle plate, and a magnet is arranged in the first magnet frame; The reed pipe rack is fixedly arranged at the side wall of the bottom end of the support; The reed switch is arranged in the reed pipe rack, and when the magnet in the first magnet rack approaches the reed switch, the reed switch is closed under the action of the attractive force of the magnet to send a tripping signal.
4. The dual float ball gas relay for a transformer of claim 1, wherein: the support department is provided with the velocity of flow spacing.
5. The double-floating ball gas relay for a transformer according to claim 3, further comprising: the lower float shaft is rotatably arranged at the bottom end of the bracket along the horizontal direction; The lower float swing arm is fixedly arranged on the lower float shaft; the lower floater is fixedly arranged on the lower floater swing arm; The lower float magnet frame is arranged on the side wall of the lower float swing arm, and a magnet is arranged in the lower float magnet frame; The second fixing frame is fixedly arranged on the bracket; And the oil loss point is arranged on the second fixing frame, and when the magnet in the lower float magnet frame approaches the oil loss point, the oil loss point is closed under the action of the attractive force of the magnet.
6. The dual float ball gas relay for a transformer according to claim 5, wherein: the oil loss point is connected with the reed switch in parallel.
7. The double-floating ball gas relay for a transformer according to claim 2, wherein: and the bottom end of the flow velocity baffle is provided with an oil guide hole.
8. The dual float ball gas relay for a transformer according to claim 5, wherein: And a steady flow plate is arranged at the bracket to ensure that the lower floater is not influenced by forward and reverse oil flowing.
9. The double-floating ball gas relay for a transformer according to claim 1, further comprising: The lower shell is fixedly arranged between the main connecting pipe of the transformer and the oil storage cabinet and used for communicating an oil way, and is connected with the upper shell to seal transformer oil in the cavity; The air release valve is fixed on the outer side of the upper shell; the binding post penetrates through the upper shell and is used for switching on a switching value signal.

Description

Double-floating ball gas relay for transformer Technical Field The utility model belongs to the technical field of relays, and particularly relates to a double-floating ball gas relay for a transformer. Background In the related technical field of the current power system, a gas relay is used as key monitoring equipment for guaranteeing safe and stable operation of a transformer and is arranged on a main connecting pipeline of the transformer. When the transformer is in normal operation, the oil flow continuously circulates in the oil pipeline. The gas relay has the core function of monitoring two key parameters in real time, namely, the volume of gas formed by the decomposition of transformer oil due to various physical and chemical reactions in the operation process, and the flow velocity of oil flow surge caused when the transformer has faults such as short circuit, overload and the like. In the related art (chinese patent of publication No. CN 207529875U), a dual-floating ball gas relay for a transformer is disclosed, which comprises a base frame and an upper housing, wherein the base frame is in flange connection with the upper housing, a frame for supporting is arranged in the base frame, two counterweights are arranged in the frame, one of the counterweights is provided with an upper opening cup, the other one of the counterweights is provided with a lower opening cup, the upper opening cup and the lower opening cup are respectively provided with a permanent magnet, the permanent magnet slide rail is slidingly connected on a stand, the stand is provided with a magnetic spring switch, the magnetic spring switch is electrically connected with a magnetic valve, the frame is also provided with a speed sensor, the end of the speed sensor is connected with an oil pump and the magnetic valve, the end of the oil pump is provided with an electromagnetic valve, the end of the electromagnetic valve is provided with an oil cavity, the oil cavity is respectively connected with the two opening cups, the end of the two opening cups are respectively connected with a probe, and the non-mechanical protection circuit can be played for gas generated in the transformer. In the actual operation environment of the current gas relay, the gas relay is subjected to the dual effects of strong impact of oil flow and high oil temperature for a long time, and under the complex and severe working condition, the problem of large error of measurement data of the gas relay is easily caused, so that the actual operation condition of a transformer cannot be accurately reflected by monitoring data, and the normal working performance and reliability of the gas relay are affected. Disclosure of utility model Aiming at the problems that the gas relay in the prior art is subjected to strong impact of oil flow and double effects of high oil temperature for a long time, and the error of measurement data of the gas relay is easy to be large, so that the monitoring data cannot accurately reflect the actual running condition of a transformer, the utility model provides the double-floating ball gas relay for the transformer, which has the highly intelligent and reliable monitoring alarm function, can sense various abnormal conditions sharply in the actual running, and sends alarm signals through different trigger mechanisms under the abnormal conditions of gas accumulation, oil flow surge, oil leakage occurrence and the like. The specific technical scheme is as follows: The double-floating ball gas relay for the transformer is arranged on an oil pipeline of a main connecting pipe of the transformer, oil flows in the oil pipeline, and the double-floating ball gas relay further comprises an upper shell, a probe, a bracket, an upper float shaft, an upper float swing arm, an upper float magnet rack, a limiting block, a limiting seat, a first fixing frame, a volume contact point, a lower limit and a heavy hammer, wherein the probe is arranged below the upper shell; the upper float swing arm is fixedly arranged on the upper float swing arm, the upper float magnet frame is arranged on the upper float swing arm, a magnet is arranged in the upper float magnet frame, the limiting block is arranged in the middle of the upper float swing arm, the limiting seat is arranged on the support, the first fixing frame is arranged on the support, when the volume contact is arranged on the first fixing frame and approaches to the magnet in the upper float magnet frame, the volume contact is closed, meanwhile, the limiting block is clamped with the limiting seat, the volume contact keeps an alarm state, the lower limiting block is arranged on the support and used for limiting the upper float, and the heavy hammer is arranged at the tail end of the upper float. According to the technical scheme, the flow speed control device comprises a flow speed shaft, a flow speed baffle, a tension spring connecting rod and an adjusting nut, wherein the flow speed shaft is rotatably