CN219245122U

CN219245122U - Gas relay gas taking structure

Info

Publication number: CN219245122U
Application number: CN202223013917.4U
Authority: CN
Inventors: 崔福星; 张鹿健; 晏金康; 沈晶; 徐永超
Original assignee: Hangzhou Kelin Electric Co ltd
Current assignee: Hangzhou Kelin Electric Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-06-23
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a gas taking structure of a gas relay, which comprises a gas collecting box and a gas taking pipe, wherein a gas outlet pipe is arranged on the gas collecting box, a control valve is arranged on the gas outlet pipe, a gas collecting barrel is arranged at one end of the gas taking pipe, the gas relay further comprises a sealing mechanism which is arranged at the other end of the gas taking pipe and used for reinforcing sealing with the gas outlet pipe, and the sealing mechanism comprises a cross plate fixedly connected in the gas taking pipe. According to the utility model, through the arrangement of the sealing mechanism, under the driving action of the driving mechanism, the pressure of the gas in the gas collecting box is utilized to push the abutting rods to move away from each other, so that the abutting plates on the abutting rods push the gas taking pipe to tightly abut against the inner wall of the gas outlet pipe, and the gas taking pipe and the gas outlet pipe are limited, thereby enhancing the tightness when the gas taking pipe is connected with the gas outlet pipe and avoiding the leakage of the gas or the entering of external air to pollute the sample gas.

Description

Gas relay gas taking structure

Technical Field

The utility model relates to the technical field of gas extraction of gas relays, in particular to a gas extraction structure of a gas relay.

Background

Once the gas relay alarms, an maintainer needs to collect the gas in the gas relay on the site of the transformer, and judges whether the fault and the type of the fault occur in the transformer or not through analysis of the gas components, so that the gas collection of the gas relay is particularly important.

The gas collecting box is an important accessory part of the gas relay and is mainly used for taking gas samples from the gas relay in operation. The transformer is generally arranged at the middle lower part of the main transformer, one end of the transformer is led out from an air hole at the side surface of the gas relay by a soft copper air-inducing pipe, and the gas collecting box is filled with transformer oil at ordinary times. Because the gas sampling is carried out after the gas collecting box is adopted, no climbing operation is needed, the danger of the gas sampling work is greatly reduced, and the labor intensity of oil service workers is also reduced.

The existing sampling method is that a hose is connected with a needle cylinder and an air taking valve on an air collecting box, and air is conveyed into the needle cylinder through the pressure of the air in the air collecting box. Because the joint of the hose and the gas taking valve has no good sealing performance, gas leakage or external air entering easily occurs so as to pollute the sample gas.

Therefore, a gas relay gas-taking structure is needed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a gas taking structure of a gas relay, which aims to solve the problem that the joint of a hose and a gas taking valve provided in the background art has no good sealing performance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the gas collecting structure of the gas relay comprises a gas collecting box and a gas collecting pipe, wherein a gas outlet pipe is arranged on the gas collecting box, a control valve is arranged on the gas outlet pipe, one end of the gas collecting pipe is provided with a gas collecting barrel, and the gas collecting structure further comprises a sealing mechanism arranged at the other end of the gas collecting pipe and used for reinforcing sealing with the gas outlet pipe;

the sealing mechanism comprises a cross plate fixedly connected in the gas taking pipe, one end of the cross plate, which is close to the gas collecting box, is provided with a plurality of mounting rods, the other end of each mounting rod is provided with a mounting ring, the mounting ring is provided with a plurality of tight supporting rods, one ends, which are far away from each other, of each tight supporting rod are provided with tight supporting plates, and the gas taking pipe is provided with a driving mechanism for driving each tight supporting rod.

The other end of each abutting plate is provided with an arc-shaped surface, and each abutting plate is distributed in an annular whole row.

The driving mechanism comprises a driving plate which is connected in the gas taking pipe in a sliding mode, the driving plate is closer to the gas collecting box than the mounting ring, a driving rod is arranged on one side, close to the mounting ring, of the driving plate, driving balls are arranged on the other end of the driving rod, inclined planes are formed in the abutting rods, the driving balls slide on the inclined planes, and a plurality of gas inlet holes are formed in the driving plate.

The sliding assembly is arranged on the gas taking pipe and used for driving the plate to slide, and comprises two T-shaped grooves which are symmetrically arranged on the side wall of the gas taking pipe, wherein the T-shaped grooves are connected with T-shaped blocks in a sliding manner, and one ends of the T-shaped blocks are connected with the driving plate.

The mounting ring is provided with a reset mechanism for resetting each abutting rod, the reset mechanism comprises a mounting cavity formed in the mounting ring, the abutting rods are located on the side wall of the mounting cavity and fixedly connected with reset plates, springs are sleeved on the side wall of the mounting cavity, and two ends of each spring are connected with the reset plates and the bottom wall of the mounting cavity respectively.

Each inclined plane is coated with a smooth film.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the arrangement of the sealing mechanism, under the driving action of the driving mechanism, the pressure of the gas in the gas collecting box is utilized to push the abutting rods to move away from each other, so that the abutting plates on the abutting rods push the gas taking pipe to tightly abut against the inner wall of the gas outlet pipe, and the gas taking pipe and the gas outlet pipe are limited, thereby enhancing the tightness when the gas taking pipe is connected with the gas outlet pipe and avoiding the leakage of the gas or the entering of external air to pollute the sample gas.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the sealing mechanism of the present utility model;

FIG. 3 is a schematic view of the internal structure of the reset mechanism of the present utility model;

FIG. 4 is an enlarged view of FIG. 2 at A;

fig. 5 is an enlarged view at B in fig. 3.

In the figure: 101. a gas collection box; 102. taking an air pipe; 103. an air outlet pipe; 105. a control valve; 106. a gas collecting barrel; 201. a cross plate; 202. a mounting rod; 203. a mounting ring; 204. a tightening rod; 205. a pressing plate; 301. a driving plate; 302. a driving rod; 303. a driving ball; 304. an inclined plane; 305. an air inlet hole; 401. a mounting cavity; 402. a reset plate; 403. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the gas collecting structure of the gas relay provided by the utility model comprises a gas collecting box 101 and a gas collecting pipe 102, wherein a gas outlet pipe 103 is arranged on the gas collecting box 101, a control valve 105 is arranged on the gas outlet pipe 103, a gas collecting barrel 106 is arranged at one end of the gas collecting pipe 102, and a sealing mechanism which is arranged at the other end of the gas collecting pipe 102 and used for strengthening sealing with the gas outlet pipe 103 is also provided;

sealing mechanism includes fixed connection cross board 201 in getting trachea 102, the one end that cross board 201 is close to gas collection box 101 is equipped with a plurality of installation poles 202, the other end of each installation pole 202 is equipped with collar 203, be equipped with a plurality of tight poles 204 of support on the collar 203, each one end that supports tight pole 204 and keep away from each other is equipped with supports tight board 205, be equipped with on the getting trachea 102 and be used for carrying out driven actuating mechanism to each tight pole 204, through sealing mechanism's setting, spacing has been carried out between getting trachea 102 and outlet duct 103, thereby the leakproofness when having strengthened getting trachea 102 and outlet duct 103 and being connected, thereby gaseous leakage or external air entering pollution sample gas have been avoided.

The arc surface has been seted up to the other end of each tight board 205 that supports, and each tight board 205 that supports is annular permutation and distributes, through the setting of arc surface, is convenient for increase the area of contact of tight board 205 and outlet duct 103 inner wall.

The driving mechanism comprises a driving plate 301 which is slidably connected in the gas taking pipe 102, the driving plate 301 is closer to the gas collecting box 101 than the mounting ring 203, a driving rod 302 is arranged on one side, close to the mounting ring 203, of the driving plate 301, a driving ball 303 is arranged on the other end of the driving rod 302, inclined planes 304 are formed in each tight supporting rod 204, the driving ball 303 slides on each inclined plane 304, a plurality of gas inlets 305 are formed in the driving plate 301, through the arrangement of the driving mechanism, the gas pressure in the gas collecting box 101 is conveniently utilized to push each tight supporting rod 204 to move away from each other, so that the tight supporting plates 205 on the tight supporting rods 204 push the gas taking pipe 102 to tightly abut against the inner wall of the gas outlet pipe 103, and limit the space between the gas taking pipe 102 and the gas outlet pipe 103 is achieved.

Be equipped with the slip subassembly that is used for drive plate 301 to slide on getting trachea 102, slip subassembly is including seting up two T type grooves that set up each other symmetry on getting trachea 102 lateral wall, and sliding connection has T type piece on two T type grooves, and the one end of two T type pieces is connected with drive plate 301, through the setting of slip subassembly, provides direction and spacing effect for the removal of drive plate 301.

The installation ring 203 is provided with a reset mechanism for resetting each abutting rod 204, the reset mechanism comprises an installation cavity 401 arranged on the installation ring 203, the abutting rods 204 are fixedly connected with reset plates 402 on the side walls of the installation cavity 401, springs 403 are sleeved on the side walls of the installation cavity 401, two ends of each spring 403 are respectively connected with the reset plates 402 and the bottom wall of the installation cavity 401, after gas taking is completed through the arrangement of the reset assembly, the control valve 105 on the gas outlet pipe 103 is closed, under the elastic force of the springs 403, the abutting plates 205 on each abutting rod 204 are pushed to move close to each other, so that the limit between the gas taking pipe 102 and the gas outlet pipe 103 is removed, and at the moment, the gas taking pipe 102 can be pulled out from the gas outlet pipe 103.

Each of the inclined surfaces 304 is coated with a smooth film to reduce the resistance of the driving ball 303 to sliding on each of the inclined surfaces 304.

Working principle: when gas taking detection is required for the gas relay, the gas taking pipe 102 is inserted into the gas outlet pipe 103 on the gas collecting box 101, the control valve 105 is opened, and because the gas in the gas collecting box 101 has certain pressure, when the gas is propped against the driving plate 301 in the gas taking pipe 102, the driving ball 303 on the driving rod 302 is pushed to move close to the mounting ring 203 under the action of force, when the driving ball 303 is propped against the inclined surface 304 on the propping rod 204, the propping rods 204 are pushed to move away from each other under the interaction force, so that the propping plates 205 on the propping rods 204 push the gas taking pipe 102 to tightly prop against the inner wall of the gas outlet pipe 103, and limit is carried out between the gas taking pipe 102 and the gas outlet pipe 103, thereby enhancing the tightness when the gas taking pipe 102 is connected with the gas outlet pipe 103, and avoiding gas leakage or external air entering to pollute the sample gas;

in the process that the driving ball 303 pushes the abutting rods 204 to move away from each other, the spring 403 is stressed to deform to form elastic force, after the air taking is completed, the control valve 105 on the air outlet pipe 103 is closed, and the abutting plates 205 on the abutting rods 204 are pushed to move close to each other under the elastic force of the spring 403, so that the limit between the air taking pipe 102 and the air outlet pipe 103 is removed, and at the moment, the air taking pipe 102 can be pulled out from the air outlet pipe 103.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A gas relay gas taking structure, comprising:

the gas collecting box (101) and the gas taking pipe (102), wherein the gas collecting box (101) is provided with a gas outlet pipe (103), the gas outlet pipe (103) is provided with a control valve (105), and one end of the gas taking pipe (102) is provided with a gas collecting barrel (106);

characterized by further comprising:

the sealing mechanism is arranged at the other end of the air taking pipe (102) and used for strengthening the sealing with the air outlet pipe (103);

sealing mechanism includes cross board (201) of fixed connection in getting trachea (102), the one end that cross board (201) is close to gas collection box (101) is equipped with a plurality of installation poles (202), each the other end of installation pole (202) is equipped with collar (203), be equipped with a plurality of tight poles (204) of support on collar (203), each the one end that supports tight pole (204) and keep away from each other is equipped with supports tight board (205), be equipped with on getting trachea (102) and be used for carrying out driven actuating mechanism to each tight pole (204) of support.

2. The gas relay gas taking structure according to claim 1, wherein: the other end of each abutting plate (205) is provided with an arc-shaped surface, and each abutting plate (205) is distributed in an annular whole row.

3. The gas relay gas taking structure according to claim 1, wherein: the driving mechanism comprises a driving plate (301) which is slidably connected in the gas taking pipe (102), the driving plate (301) is closer to the gas collecting box (101) than the mounting ring (203), a driving rod (302) is arranged on one side, close to the mounting ring (203), of the driving plate (301), a driving ball (303) is arranged at the other end of the driving rod (302), inclined planes (304) are formed in the abutting rods (204), the driving balls (303) slide on the inclined planes (304), and a plurality of gas inlets (305) are formed in the driving plate (301).

4. A gas relay gas extraction structure according to claim 3, wherein: the gas taking pipe (102) is provided with a sliding component for sliding the driving plate (301), the sliding component comprises two T-shaped grooves which are arranged on the side wall of the gas taking pipe (102) and are symmetrical to each other, the T-shaped grooves are connected with T-shaped blocks in a sliding mode, and one ends of the T-shaped blocks are connected with the driving plate (301).

5. The gas relay gas taking structure according to claim 1, wherein: the mounting ring (203) is provided with a reset mechanism for resetting each abutting rod (204), the reset mechanism comprises a mounting cavity (401) formed in the mounting ring (203), the abutting rods (204) are located on the side wall of the mounting cavity (401) and fixedly connected with reset plates (402), springs (403) are sleeved on the side wall of the mounting cavity (401) of the abutting rods (204), and two ends of each spring (403) are connected with the reset plates (402) and the bottom wall of the mounting cavity (401) respectively.

6. A gas relay gas extraction structure according to claim 3, wherein: each of the inclined surfaces (304) is coated with a smooth film.