Device for discharging gas of rectifier transformer

Abstract

The utility model belongs to the technical field of transformer gas discharging devices, and particularly relates to a device for discharging gas of a rectifier transformer, which comprises a gas discharging system, a gas inlet of the gas discharging system is connected with a gas outlet of a gas relay on the rectifier transformer, and a gas outlet of the gas discharging system is communicated with the atmosphere. The exhaust port of the gas relay is communicated with the gas inlet of the exhaust system, and the gas outlet of the exhaust system is communicated with the atmosphere, so that the gas can be quickly and safely exhausted under the condition that the transformer is not powered off, the production safety is improved, and meanwhile, the production efficiency is effectively improved; the stop valve is connected with the gas relay through the main pipe, the distance between the exhaust system and the transformer can be adjusted, the exhaust system can be conveniently arranged in a safe and easy-to-operate place, the control element is communicated with the atmosphere through the tail pipe, a gas outlet of the tail pipe can be led to the ground, the exhaust system can be conveniently maintained, and exhaust gas can be conveniently collected and sampled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to transformer gas discharge device technical field, specifically related to a device for rectifier transformer gas discharge. BACKGROUND

[0002] The gas relay is an important protection device of the transformer, which is usually installed on the connecting pipeline between the transformer oil tank and the oil pillow, and at the on-load voltage regulating switch. The main function of the gas relay is to detect the gas generated by the internal fault of the transformer or the oil flow surge, so as to send an alarm or trigger a protection action. The transformer body, the oil pillow, the gas relay and the connecting pipes are filled with insulating oil to ensure the normal operation of the equipment.

[0003] The transformer adjusts the voltage according to the load demand on site. During the voltage adjustment, the switch tapping contact may arc, causing gas to be generated inside the oil load switch, which may trigger a light gas alarm. If the light gas is not discharged for a long time, it may cause a heavy gas alarm. In addition, the loose sealing element of the gas relay may also cause false alarms, which may eventually cause the transformer to be shut down.

[0004] After finding an abnormality in daily inspection, the maintenance personnel need to handle the power-off work ticket and take safety measures (such as wearing a safety belt, using insulating tools, etc.) to discharge the gas. The gas discharge is usually carried out through the exhaust valve of the gas relay, instead of directly climbing onto the transformer body. The maintenance and operation personnel must strictly follow the safety procedures during the operation to avoid the risk of electric shock.

[0005] Therefore, the utility model provides a device for rectifier transformer gas discharge to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the defects of the prior art, and provides a device for rectifier transformer gas discharge. The gas exhaust port of the gas relay on the transformer is connected to the exhaust system, the exhaust port of the exhaust system is communicated with the atmosphere, the gas is discharged, and the transformer is prevented from being shut down due to gas alarm.

[0007] The utility model aims at overcoming the defects of the prior art, and provides a device for rectifier transformer gas discharge. The gas exhaust port of the gas relay on the transformer is connected to the exhaust system, the exhaust port of the exhaust system is communicated with the atmosphere, the gas is discharged, and the transformer is prevented from being shut down due to gas alarm.

[0008] A device for rectifier transformer gas discharge, comprising an exhaust system, the gas inlet of the exhaust system is communicated with the exhaust port of the gas relay on the rectifier transformer, and the gas outlet of the exhaust system is communicated with the atmosphere.

[0009] Further, the exhaust system comprises a control element, the gas inlet of the control element is connected with a stop valve, the gas outlet is communicated with the atmosphere, and the gas inlet of the stop valve is communicated with the exhaust port of the gas relay.

[0010] Further, the control element comprises a first valve and a second valve, the air inlet of the first valve and the air outlet of the stop valve are communicated through a first branch pipe, the air inlet of the second valve and the air outlet of the stop valve are communicated through a second branch pipe, and the air outlets of the first valve and the second valve are communicated with the atmosphere.

[0011] Further, the stop valve is connected with the air outlet of the gas relay through a main pipe.

[0012] Further, the air inlet of the main pipe is provided as a tower joint.

[0013] Further, the air outlets of the first valve and the second valve are communicated with the atmosphere through a tail pipe.

[0014] Further, the first valve is an electromagnetic valve, and the second valve is a ball valve.

[0015] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0016] (1) The air outlet of the gas relay on the transformer is communicated with the air inlet of the exhaust system, and the air outlet of the exhaust system is communicated with the atmosphere, so that the gas is quickly and safely discharged under the condition that the transformer does not stop power supply, the production safety is improved, and the production efficiency is effectively improved.

[0017] (2) The stop valve is connected with the gas relay through the main pipe, the distance between the exhaust system and the transformer can be adjusted, the exhaust system can be arranged in a safe and easy-to-operate place, the tail pipe is communicated with the atmosphere through the control element, the air outlet of the tail pipe can be led to the ground, the exhaust system is convenient to maintain, and the discharged gas can be collected and sampled.

[0018] (3) The first valve and the second valve are independently arranged, so that when any one of them fails, the other one can continue to discharge the gas, thereby reducing the power-off frequency of the rectifier transformer. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and forming a part thereof, together with the specification, serve to explain the principle of the utility model.

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The utility model provides a device structure schematic diagram for rectifier transformer gas discharge.

[0022] Reference numerals: 1, stop valve; 2, first valve; 3, second valve; 4, main pipe; 5, first branch pipe; 6, second branch pipe; 7, tail pipe; 8, rectifier transformer; 9, gas relay; 10, hose; 11, sampling bag. DETAILED DESCRIPTION

[0023] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following exemplary embodiments described therein represent the best present understanding of the present application at the time of filing and can be implemented in any number of variations. It is understood that the application is not limited to the embodiments described here. Rather, they are merely examples of apparatuses consistent with some aspects of the present application detailed in the appended claims.

[0024] In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Embodiment

[0026] Reference Figure 1 A device for rectifier transformer gas discharge comprises an exhaust system, the air inlet of the exhaust system is communicated with the air outlet of the gas relay 9 on the rectifier transformer 8, and the air outlet of the exhaust system is communicated with the atmosphere. The air inlet of the exhaust system is connected with the air outlet of the gas relay 9, and when the gas reaches a certain concentration, the gas is discharged through the exhaust system.

[0027] In the embodiment, the control element of the exhaust system comprises a stop valve 1, the air inlet of the stop valve 1 is communicated with the air outlet of the gas relay 9, and the air outlet of the stop valve 1 is communicated with the atmosphere. The stop valve 1 is in a communication state in normal circumstances, and the inside of the exhaust system is communicated. When the device is maintained, the stop valve 1 is closed, and the gas discharge to the outside is cut off.

[0028] In the embodiment, the control element comprises a first valve 2 and a second valve 3, the air inlet of the first valve 2 and the air outlet of the stop valve 1 are communicated through a first branch pipe 5, the air inlet of the second valve 3 and the air outlet of the stop valve 1 are communicated through a second branch pipe 6, and the air outlets of the first valve 2 and the second valve 3 are communicated with the atmosphere. When any one of the first valve 2 and the second valve 3 fails, the other one can be enabled, and when the first valve 2 or the second valve 3 fails, the exhaust system can continue to discharge the gas without stopping the power supply of the rectifier transformer 8.

[0029] In the embodiment, the cut-off valve 1 is communicated with the gas relay 9 through the main pipe 4, a hose is communicated between the main pipe 4 and the gas relay 9, the hose is a rubber pipe or a corrugated metal hose, which is used to extend the distance between the exhaust system and the transformer 8, and facilitate to set the exhaust system in a safe and easy-to-operate place.

[0030] In the embodiment, the air inlet of the main pipe 4 is provided as a bell joint, which improves the air tightness of the device during the gas exhaust process.

[0031] In the embodiment, the air outlet of the first valve 2 and the air outlet of the second valve 3 are communicated through the tail pipe 7, and the air outlet of the tail pipe 7 is communicated with the atmosphere. The transformer gas collection and testing is an important means to detect the internal fault of the transformer, and through the analysis of the gas dissolved in the transformer oil, the running state and potential problems of the transformer can be judged. When it is necessary to collect the exhaust gas, the sampling bag 11 can be connected with the air outlet of the tail pipe 7 to achieve the purpose of sampling and collecting.

[0032] In the embodiment, the first valve 2 is an electromagnetic valve, and the second valve 3 is a ball valve. The first valve 2 adopts an automatic control electromagnetic valve, and the second valve 3 adopts a manual control ball valve. When the device is used, the first valve 2 is in an open state, and the second valve 3 is in a closed state. When the gas reaches a certain concentration, it is automatically discharged through the first valve 2. When the first valve 2 fails, the second valve 3 is manually enabled.

[0033] The above only describes the specific embodiments of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0034] It should be understood that the present application is not limited to the above described and that various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An apparatus for rectifying gas emissions from a transformer, characterized by, The exhaust system comprises an air inlet connected with the air outlet of the gas relay (9) on the rectifier transformer (8) and an air outlet connected with the atmosphere.

2. The device for rectifier transformer gas exhaust according to claim 1, characterized in that, The exhaust system comprises a control element, the air inlet of which is connected with the air outlet of the gas relay (9) through a stop valve (1), and the air outlet is connected with the atmosphere.

3. The device for rectifier transformer gas exhaust according to claim 2, characterized in that, The control element comprises a first valve (2) and a second valve (3), the air inlet of the first valve (2) is connected with the air outlet of the stop valve (1) through a first branch pipe (5), the air inlet of the second valve (3) is connected with the air outlet of the stop valve (1) through a second branch pipe (6), and the air outlets of the first valve (2) and the second valve (3) are both connected with the atmosphere.

4. The device for rectifier transformer gas exhaust according to claim 3, characterized in that, The stop valve (1) is connected with the air outlet of the gas relay (9) through a main pipe (4).

5. The device for rectifier transformer gas exhaust according to claim 4, characterized in that, The air inlet of the main pipe (4) is provided with a cone joint.

6. The device for rectifier transformer gas exhaust according to claim 3, characterized in that, The air outlets of the first valve (2) and the second valve (3) are connected with the atmosphere through a tail pipe (7).

7. The apparatus for rectifier transformer gas venting of claim 3, wherein, The first valve (2) is an electromagnetic valve, and the second valve (3) is a ball valve.

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