CN213452191U

CN213452191U - Transition joint and gas relay suitable for multiple box model of getting gas

Info

Publication number: CN213452191U
Application number: CN202022217258.0U
Authority: CN
Inventors: 杨锋; 任鑫; 刘磊; 史忠杰; 朱文凯
Original assignee: Changzhou Xd Transformer Co ltd; China XD Electric Co Ltd
Current assignee: Changzhou Xd Transformer Co ltd; China XD Electric Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-15
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a crossover sub and gas relay suitable for multiple box model of getting gas, first interface and second interface including integrated into one piece, the connection can be dismantled to first interface and gas relay interface, the connection can be dismantled with the box interface of getting gas to the second interface, first interface and the coaxial arrangement of second interface, the inner chamber of first interface and the inner chamber of second interface link up, the inner chamber of first interface and the inner chamber of second interface are coaxial. The utility model discloses a this crossover sub has increased the application scope who gets the gas box, has accomplished the gas relay of different models and has got the connection of gas box through simple crossover sub structure promptly, and economic performance is higher, simple structure, simple to operate, safe and reliable, and interchangeability is better.

Description

Transition joint and gas relay suitable for multiple box model of getting gas

Technical Field

The utility model relates to a transformer gas relay technical field, concretely relates to be suitable for transition joint and gas relay of multiple box model of getting gas.

Background

In recent years, along with the continuous improvement of the requirement on the operation and maintenance safety, a transformer body and a vacuum arc-extinguishing on-load tap changer need to be provided with a gas relay, and a corresponding gas taking box needs to be arranged at a position convenient to operate on the lower part of the transformer for the convenience of sampling and testing.

In the 30-year service life cycle of a large-scale power transformer, the gas taking box belongs to a quick-wear part, and when the gas taking box is replaced, the interchangeability is low due to the fact that interfaces between gas relays of different brands and connecting copper pipes of the gas taking box are not uniform. By increasing the universality of the gas taking box, the use and maintenance cost of the gas relay is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims at providing a crossover sub and gas relay suitable for multiple gas-taking box model solves the gas relay of present different models and gets the non-uniform problem of gas box interface.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a transition joint suitable for multiple box model of getting gas, includes integrated into one piece's first interface and second interface, first interface and gas relay interface can dismantle the connection, the connection can be dismantled with the box interface of getting gas to the second interface, first interface and the coaxial arrangement of second interface, the inner chamber of first interface and the inner chamber of second interface link up, the inner chamber of first interface and the inner chamber of second interface are coaxial.

Furthermore, the first interface is in threaded connection with the gas relay interface, and an inner cavity of the first interface is provided with internal threads.

Furthermore, a first sealing gasket ring is arranged on the end face of the gas relay interface;

when the first interface is connected with the interface of the gas relay, the junction of the first interface and the second interface is pressed on the end face of the interface of the gas relay through the first sealing gasket ring.

Furthermore, the second interface is in threaded connection with the gas taking box interface, and an external thread is arranged on the outer wall of the second interface.

Furthermore, a second sealing gasket ring is arranged on the end face of the second interface;

when the second interface and get gas box interface connection, the terminal surface of second interface compresses tightly at the one end terminal surface of getting the gas box interface through the second sealing gasket ring.

Further, the outer wall of the first interface is hexagonal prism shaped.

Further, the surface of the first interface and the surface of the second interface are plated with nickel layers.

The utility model also provides a gas relay suitable for multiple box model of getting gas, can dismantle on the gas relay interface and be connected with foretell a crossover sub suitable for multiple box model of getting gas.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model provides a transition joint suitable for multiple box model of getting gas, first interface and second interface through integrated into one piece, correspond respectively to on gas relay and the interface of the box of getting gas, the diameter of first interface is confirmed according to different gas relay's interface diameter, the diameter of second interface is confirmed through the interface diameter of the box of getting gas, gas relay that moves many years need install additional or when changing the gas box, the application scope of the box of getting gas has been increased through this transition joint, the gas relay of different models and the connection of the box of getting gas have been accomplished through simple transition joint design promptly, economic performance is higher, moreover, the steam generator is simple in structure, high durability and convenient installation, safety and reliability, interchangeability is better.

Further, the utility model discloses a first interface and gas relay connect through first gasket ring, and the second interface is connected through second gasket ring with getting the gas box, has increased the connection leakproofness between the two, prevents to leak gas.

The utility model also provides a gas relay suitable for multiple gas-taking box model, gas relay can dismantle on the gas-taking interface and connect above-mentioned crossover sub, when installing additional or changing the crossover sub, no longer need spend a large amount of time and money purchase match the gas-taking box of gas relay model, directly change the utility model discloses the last crossover sub of gas relay, the cost is lower, and easy operation is convenient, has reduced gas relay and has used and the maintenance cost.

Drawings

FIG. 1 is an exploded view of the gas-extracting box of the present invention;

FIG. 2 is a schematic view of a transition joint structure of the present invention;

FIG. 3 is a cross-sectional view of the transition joint of the present invention;

in the drawings: 1-gas relay interface, 2-first sealing gasket ring, 3-second interface, 4-second sealing gasket ring, 5-gas taking box interface and 6-first interface.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model provides a transition joint suitable for multiple box model of getting gas, first interface 6 and second interface 3 including integrated into one piece, first interface 6 and gas relay interface 1 can dismantle the connection, second interface 3 can dismantle the connection with getting gas box interface 5, first interface 6 and the coaxial arrangement of second interface 3, the inner chamber of first interface 6 and the inner chamber of second interface 3 link up, the inner chamber of first interface 6 and the inner chamber of second interface 3 are coaxial.

Specifically, the first interface 6 is in threaded connection with the gas relay interface 1, in this embodiment, the gas relay interface 1 is a gas taking interface of the gas relay, an inner cavity of the first interface 6 is provided with an inner thread, an outer wall of the gas taking interface on the gas relay is provided with an outer thread matched with the first interface 6, preferably, the outer wall of the first interface 6 is in a hexagonal prism shape, so that the transition joint is convenient to mount and dismount; when the first interface 6 is in threaded connection with the gas relay, the first sealing gasket ring 2 is placed on the end face of the gas taking interface, so that the gas leakage phenomenon between the first interface 6 and the gas relay is prevented; the second interface 3 is connected with the gas taking box interface 5 through threads, the outer wall of the second interface 3 is provided with external threads, the inner cavity of the gas taking box interface 5 is provided with internal threads matched with the external threads of the second interface 3, a second sealing gasket ring 4 is placed on the end face of the second interface 3, the second sealing gasket ring 4 is pressed when the second interface 3 is connected with the gas taking box through threads, and the gas leakage phenomenon between the second interface 3 and the gas taking box is prevented; in the embodiment, the first interface 6 and the second interface 3 are both made of brass material, and the surfaces of the brass are plated with nickel layers; as shown in fig. 2 and 3, the first port 6 in the transition joint is designed to accommodate the external thread of the gas relay gas taking port, and covers the external thread to fix the whole transition joint, so that the diameter of the inner cavity of the first port 6 is larger. The diameter of the coaxial inner cavity of the second interface 3 is smaller and is equal to the diameter of the inner cavity of the gas taking interface of the gas relay, and the screw thread between the first interface 6 and the interface 1 of the gas relay is screwed. So that the first sealing gasket ring 2 can be pressed between the gas relay port 1 and the second port 3. (the inner diameter of the first sealing gasket ring 2 is slightly larger than the diameter of the coaxial inner cavity of the second connector 3, and the outer diameter is slightly smaller than the diameter of the coaxial inner cavity of the first connector 6)

Use the utility model discloses when connecting, specific installation as follows:

firstly, a first sealing gasket ring 2 is placed on the end face of a gas relay interface 1, an internal thread end of a first interface 6 is screwed on an external thread of the gas relay interface 1 until the first sealing gasket ring 2 between the first interface 6 and a gas relay is pressed, a second sealing gasket ring 4 is placed on the end face of a second interface 3, and an external thread end of the second interface 3 is screwed in an internal thread of a gas taking box interface 5 until the second interface 3 and the second sealing gasket ring 4 between the gas taking box are pressed.

The utility model has the advantages of being simple in structure and convenient in installation and safe and reliable, meet the gas relay of field operation for a plurality of years and need install additional or change and get the gas box, can increase the application scope who gets the gas box through this transition joint.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a transition joint suitable for multiple box model of getting gas, a serial communication port, first interface (6) and second interface (3) including integrated into one piece, first interface (6) and gas relay interface (1) can dismantle the connection, second interface (3) can dismantle the connection with getting gas box interface (5), first interface (6) and second interface (3) coaxial arrangement, the inner chamber of first interface (6) and the inner chamber of second interface (3) link up, the inner chamber of first interface (6) and the inner chamber of second interface (3) are coaxial.

2. The transition joint suitable for various gas extraction box models according to claim 1, wherein the first interface (6) and the gas relay interface (1) are in threaded connection, and an inner cavity of the first interface (6) is provided with internal threads.

3. The transition joint suitable for various gas extraction box models according to claim 2, characterized in that a first sealing gasket ring (2) is placed on the end face of the gas relay interface (1);

when the first interface (6) is connected with the gas relay interface (1), the junction of the first interface (6) and the second interface (3) is pressed on the end face of the gas relay interface (1) through the first sealing gasket ring (2).

4. The transition joint suitable for multiple gas extraction box models according to claim 1, wherein the second connector (3) is in threaded connection with the gas extraction box connector (5), and the outer wall of the second connector (3) is provided with external threads.

5. The transition joint suitable for various gas extraction box models according to claim 4, characterized in that a second gasket ring (4) is placed on the end face of the second interface (3);

when the second interface (3) is connected with the air-taking box interface (5), the end face of the second interface (3) is pressed on the end face of one end of the air-taking box interface (5) through the second sealing gasket ring (4).

6. A transition joint adapted for multiple gas extraction box models according to claim 1, wherein the outer wall of the first port (6) is hexagonal prism shaped.

7. A transition joint adapted for use with multiple gas extraction cartridge types as claimed in claim 1, wherein the surfaces of the first port (6) and the second port (3) are nickel plated.

8. A gas relay suitable for various gas extraction box models, which is characterized in that a transition joint suitable for various gas extraction box models as claimed in any one of claims 1-7 is detachably connected to a gas relay interface (1).