CN106207818A - Transformator Buchholz relay exhaust apparatus - Google Patents

Abstract

The invention relates to a gas relay exhaust device for a transformer, which is composed of a front-end connector, an exhaust pipe, an exhaust valve and a sealing support. The mouth connection interface; the exhaust valve is set at the end of the exhaust pipe; the sealing support is sleeved on the exhaust pipe and passes through the side wall of the gas relay. The present invention is installed on the existing transformer gas relay, and the exhaust operation does not need to be frequently operated on the gas relay, so that maintenance and operation personnel do not need to climb up to work, and at the same time, it can also avoid gas relay exhaust nozzle sealing components from loosening and oil leakage. The relay malfunctioned.

Description

Transformer gas relay exhaust device

technical field

The invention relates to auxiliary equipment for transformer maintenance, in particular to an exhaust device for a transformer gas relay.

Background technique

At present, due to the need for power grid maintenance, the frequency of on-load voltage regulation operations for main transformers in the power grid is very intensive. The arc generated by the frequent action of the on-load tap changer causes the transformer oil to vaporize, causing gas to be generated inside the mechanism, resulting in gas accumulation at the upper end of the on-load gas relay of the main transformer. Therefore, it is necessary to ventilate and exhaust the gas relay. There are two main ways of ventilation and exhaust at present: one is power-off operation, and the other is electrified operation. Power outage operation makes the transformer under load out of operation, which reduces the reliability of power supply during operation; live operation has hidden dangers, which may easily cause electric shock accidents for personnel, and frequent deflation may easily cause loose sealing device components and oil leakage, resulting in misoperation of gas relays etc. In addition, this kind of electrified gas discharge operation cannot be operated by operation and maintenance personnel according to regulations. When operation and maintenance personnel find that it is necessary to perform gas discharge operations, they must report to the maintenance department for repairs, and special maintenance personnel will work on the spot.

Contents of the invention

In order to solve the above-mentioned deficiencies in the prior art, the present invention provides an easy-to-operate transformer gas relay exhaust device.

The object of the present invention is achieved in this way: a transformer gas relay exhaust device is characterized in that it is composed of a front-end connector, an exhaust pipe, an exhaust valve and a sealing support, the front-end connector is arranged at the front end of the exhaust pipe, And it has an interface that can be connected with the exhaust nozzle of the gas relay; the exhaust valve is arranged at the end of the exhaust pipe; the sealing support is sleeved on the exhaust pipe and passes through the side wall of the gas relay.

The exhaust pipe is a two-section structure, and the two sections of the exhaust pipe are connected by a sealed connector.

The front connecting piece, the exhaust valve and the exhaust pipe are all sealed connections.

The sealing support is in sealing contact with the side wall of the Buchholz relay and the exhaust pipe.

The present invention is installed on the existing transformer gas relay, and the exhaust operation does not need to be frequently operated on the gas relay, so that maintenance and maintenance personnel do not need to climb up to work, and at the same time, it can also avoid gas relay exhaust nozzle sealing components from loosening and oil leakage. The relay malfunctioned. The exhaust pipe of the present invention is led to a lower height, because of the principle of height difference and pressure, the operation and maintenance personnel can perform exhaust operation at any time without the need for special maintenance personnel to be on the spot, which improves work efficiency and timely operation and maintenance sex.

Description of drawings

Fig. 1 is the structural representation installed on the transformer gas relay of the present invention;

Fig. 2 is a partial sectional view of the present invention installed on a transformer gas relay.

detailed description

Below in conjunction with accompanying drawing for further explanation:

As shown in FIGS. 1 and 2 , the present invention is composed of a front end connector 1 , an exhaust pipe 2 , an exhaust valve 3 and a sealing support 4 . The front-end connector is arranged on the front end of the exhaust pipe, and the front-end connector of the present embodiment is a connecting nut whose internal thread matches the external thread of the exhaust nozzle 14 of the gas relay 6 . A sealing ring 5 is arranged between the exhaust nozzle of the gas relay and the connecting nut, and a sealing connection is also between the front end connector and the exhaust pipe.

The exhaust valve is arranged at the end of the exhaust pipe, and it is sealedly connected with the exhaust pipe.

The sealing support is sleeved on the exhaust pipe. The sealing support in this embodiment is a bolt sleeved on the exhaust pipe. The external thread of the bolt matches the internal thread of the through hole 9 on the side wall 7 of the gas relay. It is also in a sealed state between the gas relay and the exhaust pipe. The setting of the sealing support member can prevent external rainwater and dust from entering into the inside of the gas relay.

The exhaust pipe can be divided into two sections, and its total length can be determined according to the work needs. The two sections of the exhaust pipe are connected by a sealing joint 8 . The sealing connector of this embodiment is composed of a wire sleeve 10 , a screw sleeve 11 , a docking nozzle 12 and a sealing ring 13 . See Figure 2.

The use method of the present invention is: after connecting the connecting nut at the front section of the exhaust pipe with the exhaust nozzle on the gas relay, lead the exhaust pipe to the outside from the through hole on the side wall of the gas relay, and screw the sealing support bolt Tightly over the side wall through hole. Then the rear section of the exhaust pipe is tightly connected with the front section through the sealing connector, and the exhaust valve at the end of the exhaust pipe is led to a suitable position and height for easy operation. The exhaust operation of the gas relay can be carried out by opening the exhaust valve.

Claims (4)

1. A transformer gas relay exhaust device, characterized in that it is composed of a front-end connector, an exhaust pipe, an exhaust valve and a sealing support, the front-end connector is arranged at the front end of the exhaust pipe, and has The interface for gas nozzle connection; the exhaust valve is arranged at the end of the exhaust pipe; the sealing support is sleeved on the exhaust pipe and passes through the side wall of the Buchholz relay. 2. The exhaust device for transformer gas relay according to claim 1, characterized in that the exhaust pipe has a two-stage structure, and the two-stage exhaust pipes are connected by a sealed connector. 3. The exhaust device for transformer gas relay according to claim 1, characterized in that the front-end connector, the exhaust valve and the exhaust pipe are all sealed and connected. 4. The exhaust device of the transformer Buchholz relay according to claim 1, characterized in that the sealing support member is in sealed contact with the side wall of the Buchholz relay and the exhaust pipe.