CN216050893U

CN216050893U - Multifunctional transformer oil sampling device

Info

Publication number: CN216050893U
Application number: CN202122305475.XU
Authority: CN
Inventors: 漆炎; 陈礼鹏
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-15
Anticipated expiration: 2031-09-23

Abstract

A multifunctional transformer oil sampling device comprises a connecting device, a buffer cavity and an oil outlet nozzle, wherein one end of the connecting device is in threaded connection with an original sampling valve on a transformer, the other end of the connecting device is in threaded connection with an adapter, the other end of the adapter is communicated with a liquid inlet on the buffer cavity through a flange sleeve, a liquid outlet is formed in the buffer cavity and communicated with a liquid conveying pipe, the other end of the liquid conveying pipe is provided with the oil outlet nozzle, and a stop valve is arranged on the liquid conveying pipe; the utility model adopts a brand new sampling structure, can effectively solve the problem that the insulating oil cannot be sampled and is difficult to treat due to the internal leakage of the original sampling valve, ensures that the insulating oil can be detected and tested according to the requirements, and improves the safety and reliability of the operation of the transformer.

Description

Multifunctional transformer oil sampling device

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to a multifunctional transformer oil sampling device.

Background

The transformer insulating oil mainly plays a role in cooling and insulating in the transformer, and good transformer oil is clean and transparent liquid and is free from sediment, mechanical impurity suspended matters and cotton-like substances. Transformer oil deteriorates if it becomes contaminated and oxidized, and resins and precipitates are produced, and the color gradually changes to light red until it becomes dark brown liquid. The color of the oil can also change when the transformer fails. Therefore, according to the regulations of national standards, oil samples must be periodically sampled, tested and checked for electrical and mechanical properties of the insulating oil, so as to ensure the normal operation of the transformer.

In the prior art, the transformer oil sampling device is a structure that a nut drives a plunger to move to press or release a sealing ring at an oil outlet of an oil tank, so that an oil way is opened or closed, and the device usually has the following defects:

1. the cycle frequency of oil sampling is dense, the opening and closing operation of the valve is frequent, and the situation that the force for closing the valve is excessive due to improper operation of workers easily causes accelerated aging or damage of the sealing ring;

2. the movement of the valve plunger easily causes accelerated aging or damage failure of the seal between the plunger and the inner wall of the base, so that insulating oil leaks along the outer wall of the plunger, the oil pressure and the flow of an oil outlet nozzle of the oil sample valve are insufficient, and an oil sample cannot be taken normally;

3. the oil sampling valve is positioned at the bottom of the transformer oil tank, and the oil sampling valve or the sealing ring is replaced by the whole oil discharging process in the power failure of the transformer, so that the consumed time is long, the workload is huge, and the economical efficiency is extremely poor.

Disclosure of Invention

In view of the technical problems in the background art, the multifunctional transformer oil sampling device provided by the utility model adopts a brand-new sampling structure, can effectively solve the problem that the insulating oil cannot be sampled and is difficult to process due to the internal leakage of the original sampling valve, ensures that the insulating oil can be detected and tested as required, and improves the safety and reliability of the operation of the transformer.

In order to solve the technical problems, the utility model adopts the following technical scheme to realize:

the utility model provides a multi-functional transformer oil sampling device, including connecting device, cushion chamber and play oil nozzle, former sample valve threaded connection on connecting device's one end and the transformer, connecting device's the other end and adapter threaded connection, the other end of adapter passes through the inlet on the flange cover intercommunication cushion chamber, is equipped with the leakage fluid dram and feeds through the transfer line on the cushion chamber, and the other end of transfer line is equipped with out oil nozzle, is equipped with the stop valve on the transfer line.

In the preferred scheme, the connecting device comprises a connector, a wrench groove and a threaded connecting hole; the connector sets up at connecting device's both ends and communicates each other, has seted up threaded connection hole in the connector and with former sample valve and adapter threaded connection, and the spanner groove sets up between the connector.

In the preferred scheme, one end of the adapter is provided with a threaded connector and is in threaded connection with the connector, and the other end of the adapter is provided with a connecting flange and is connected with the flange sleeve.

In the preferred scheme, a first sealing washer is arranged at the joint of the connecting device and the original sampling valve, a second sealing washer is arranged at the joint of the adapter and the connecting device, and a flange sealing washer is arranged at the joint of the adapter and the flange sleeve.

In the preferred scheme, the cushion chamber is made for transparent material, and the top of cushion chamber is equipped with the core vent.

In a preferable scheme, the oil outlet nozzle is provided with an oil nozzle cover, and the oil nozzle cover is in threaded connection with the infusion tube.

The following beneficial effects:

1. the device has multiple functions of observing the state of the insulating oil, exhausting at the bottom and the like, ensures that the insulating oil is detected and tested as required, and improves the safety and reliability of the operation of the transformer;

2. the sampling process of transformer insulating oil can be simplified by a wide margin to this device, can not cause equipment ageing because of frequent operation at the sampling process of insulating oil, has protected former sample valve and has improved the whole service life of transformer.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the overall principle and structure of the present invention;

FIG. 2 is a schematic view of a connecting device according to the present invention;

fig. 3 is a schematic structural diagram of an adapter according to the present invention.

In the figure: the device comprises a transformer 1, an original sampling valve 2, a first sealing washer 3-1, a second sealing washer 3-2, a connecting device 4, a connector 4-1, a wrench groove 4-2, a threaded connecting hole 4-3, an adapter 5, a threaded connector 5-1, a connecting flange 6, a flange sealing washer 7, a buffer cavity 8, an exhaust plug 9, a stop valve 10, an oil outlet 11, an oil nozzle cover 12, a flange sleeve 13 and an infusion tube 14.

Detailed Description

As shown in fig. 1, a multi-functional transformer oil sampling device, including connecting device 4, cushion chamber 8 and play oil nozzle 11, 2 threaded connection of former sample valve on connecting device 4's one end and the transformer 1, connecting device 4's the other end and 5 threaded connection of adapter, wherein the connecting thread length of former sample valve 2 and adapter 5 is unanimous, flange cover 13 intercommunication inlet on cushion chamber 8 is passed through to adapter 5's the other end, be equipped with the leakage fluid dram on cushion chamber 8 and communicate transfer line 14, the other end of transfer line 14 is equipped with out oil nozzle 11 and draws the point as the oil appearance, be equipped with stop valve 10 on the transfer line 14 and regard as new oil appearance valve.

The preferred scheme is as shown in figure 2, the connecting device 4 comprises a connecting head 4-1, a wrench groove 4-2 and a threaded connecting hole 4-3; the connectors 4-1 are arranged at two ends of the connecting device 4 and are communicated with each other, threaded connecting holes 4-3 are formed in the connectors 4-1 and are in threaded connection with the original sampling valve 2 and the adapter 5, free connection and replacement of all parts in the device can be facilitated through the design of the connecting device 4, the wrench grooves 4-2 are arranged between the connectors 4-1, and the wrench grooves 4-2 are beneficial to fastening all the parts by a wrench when the parts are installed.

Preferably, as shown in fig. 3, one end of the adapter 5 is provided with a threaded connector 5-1 and is in threaded connection with the connector 4-1, and the other end of the adapter 5 is provided with a connecting flange 6 and is connected with a flange sleeve 13.

The preferable scheme is as shown in fig. 1 and 3, a first sealing washer 3-1 is arranged at the joint of the connecting device 4 and the original sampling valve 2, a second sealing washer 3-2 is arranged at the joint of the adapter 5 and the connecting device 4, and a flange sealing washer 7 is arranged at the joint of the adapter 5 and the flange sleeve 13; the first sealing washer 3-1 and the second sealing washer 3-2 can prevent oil leakage at the joint of the parts, and the flange sealing washer 7 can ensure the tightness of the joint of the flange sleeve 13 and prevent the oil leakage at the joint and the external moisture from entering the device.

The preferred scheme is as shown in fig. 1, and cushion chamber 8 is made for transparent material, helps patrolling and examining the colour of insulating oil in cushion chamber 8 through this material, and cushion chamber 8's top is equipped with core vent 9, if there is gas in the insulating oil, and gas will rise automatically and gather to transparent cushion chamber 8's top, and the rethread core vent 9 discharges to outside.

According to a preferred scheme, as shown in fig. 1, an oil nozzle cover 12 is arranged at the oil nozzle 11, the oil nozzle cover 12 is in threaded connection with an infusion tube 14, the oil nozzle cover 12 can protect the oil nozzle 11 to a certain extent during daily work, and external moisture can be prevented from entering a sampling device through the oil nozzle 11 and affecting the final detection result of an oil sample.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a multi-functional transformer oil sampling device, including connecting device (4), cushion chamber (8) and play oil nozzle (11), its characterized in that: one end of the connecting device (4) is in threaded connection with the original sampling valve (2) on the transformer (1), the other end of the connecting device (4) is in threaded connection with the adapter (5), the other end of the adapter (5) is communicated with a liquid inlet in the buffer cavity (8) through a flange sleeve (13), a liquid outlet is formed in the buffer cavity (8) and is communicated with a liquid conveying pipe (14), an oil outlet nozzle (11) is formed in the other end of the liquid conveying pipe (14), and a stop valve (10) is arranged on the liquid conveying pipe (14).

2. The multifunctional transformer oil sampling device of claim 1, wherein: the connecting device (4) comprises a connector (4-1), a wrench groove (4-2) and a threaded connecting hole (4-3); the connector (4-1) is arranged at two ends of the connecting device (4) and communicated with each other, a threaded connecting hole (4-3) is formed in the connector (4-1) and is in threaded connection with the original sampling valve (2) and the adapter (5), and the wrench groove (4-2) is arranged between the connectors (4-1).

3. The multifunctional transformer oil sampling device of claim 1, wherein: one end of the adapter (5) is provided with a threaded connector (5-1) and is in threaded connection with the connector (4-1), and the other end of the adapter (5) is provided with a connecting flange (6) and is connected with a flange sleeve (13).

4. The multifunctional transformer oil sampling device according to claim 2 or 3, wherein: a first sealing washer (3-1) is arranged at the joint of the connecting device (4) and the original sampling valve (2), a second sealing washer (3-2) is arranged at the joint of the adapter (5) and the connecting device (4), and a flange sealing washer (7) is arranged at the joint of the adapter (5) and the flange sleeve (13).

5. The multifunctional transformer oil sampling device of claim 1, wherein: the buffer cavity (8) is made of transparent materials, and the top of the buffer cavity (8) is provided with an exhaust plug (9).

6. The multifunctional transformer oil sampling device of claim 1, wherein: an oil nozzle cover (12) is arranged at the oil nozzle (11), and the oil nozzle cover (12) is in threaded connection with an infusion tube (14).