CN216816681U

CN216816681U - On-line monitoring device for gas in transformer oil

Info

Publication number: CN216816681U
Application number: CN202122130438.XU
Authority: CN
Inventors: 徐丽
Original assignee: Shanghai Qiren Power Technology Co ltd
Current assignee: Shanghai Qiren Power Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-06-24
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses an on-line monitoring device for gas in transformer oil, which comprises a shell, a protection mechanism and a hydrogen sensitive probe, wherein the protection mechanism is arranged on the right side of the shell, and the hydrogen sensitive probe is fixedly arranged on the left side of the shell. This gaseous on-line monitoring device in transformer oil, set up fixed box through the casing bottom at monitoring devices, start the inside radiator fan of fixed box and dispel the heat to monitoring devices's inside, prevent that the inside high temperature of transformer box, lead to monitoring devices internal component to burn out, its monitoring devices's right side surface sets up the protecting crust simultaneously and can carry out anticollision protection to monitoring devices, when the right side of protecting crust receives the collision, its protecting crust removes left and applys pressure to buffer spring, buffer spring pressurized produces buffering elasticity and cushions collision force, thereby monitoring devices's casing has been protected, avoided the casing to receive the collision and taken place deformation extrusion internal electronic component, on-line monitoring devices's life has been improved.

Description

On-line monitoring device for gas in transformer oil

Technical Field

The utility model relates to the technical field of monitoring of gas in transformer oil, in particular to an online monitoring device for gas in transformer oil.

Background

The transformer on-line monitoring is an important component of an on-line monitoring system of power equipment. The online monitoring of the dissolved concentration of the fault gas of the oil-immersed transformer is an important component of an online monitoring system of the transformer. The conventional monitoring of transformer oil fault gas adopts laboratory cycle sampling, utilizes gas chromatography instrument to detect the fault gas who dissolves in the oil, has the operation link many, wastes time and energy, shortcomings such as test cycle length, can not in time carry out the early warning to developing faster trouble. Therefore, in the design and installation of transformers of large power plants, which have been recently established, online detection devices are often used in combination to monitor gas dissolved in transformer oil in real time. When local overheating, local discharge and arc discharge occur in the oil-immersed transformer, transformer oil and insulating materials in the oil-immersed transformer can be decomposed into gases, and the gases mainly comprise seven fault gases, namely H2, CO2, C2H4, C2H2, C2H4 and C2H 6. H2 is generated more or less in all fault states of the oil-filled transformer, and the obvious increase of the content of H2 is a reliable sign that the transformer exists or can cause various faults.

At present, the on-line monitoring device for gas in transformer oil has a short service life, and needs to be replaced and maintained frequently, so that the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an on-line monitoring device for gas in transformer oil, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a gaseous on-line monitoring device in transformer oil, includes casing, protection mechanism and hydrogen sensitive probe, protection mechanism sets up in the right side of casing, hydrogen sensitive probe fixed mounting is in the left side of casing.

The protection mechanism comprises a protection shell and a first limiting groove, the first limiting groove is arranged on the left side of the protection shell, a fixed rod is fixedly arranged inside the first limiting groove, a buffer spring is fixedly arranged inside the first limiting groove, and the buffer spring is sleeved on a rod body of the fixed rod.

Preferably, the right side of the shell is provided with a second limiting groove, the left wall of the second limiting groove is provided with a through hole, the inside of the through hole is spliced with a fixing rod, the inside of the second limiting groove is fixedly provided with a buffer spring, and the buffer spring can buffer the collision from the right side of the monitoring device, so that the monitoring device is protected.

Preferably, the inside right wall of casing has seted up the recess, the left end fixed mounting of dead lever has the stopper, and the setting of its recess and stopper can carry out limiting displacement to the dead lever, prevents that the dead lever from appearing the condition that drops at the in-process that uses.

Preferably, the inside fixed mounting of casing has the hydrogen sensor, the inside fixed mounting of casing has the second mount, the middle part fixed mounting of second mount has control module, and the setting of second mount can play the support fixed action to control module.

Preferably, the bottom fixed mounting of casing has fixed box, the inside fixed mounting of fixed box has first mount, the middle part fixed mounting of first mount has radiator fan, starts radiator fan and can dispel the heat fast to monitoring devices inside, avoids the too high life who influences monitoring devices of transformer box inside temperature.

Preferably, the inside upper port fixed mounting of fixed box has first metal protection network, port fixed mounting has the second metal protection network under the inside of fixed box, the inside fixed mounting of fixed box has dustproof filter screen, and the setting of its dustproof filter screen can prevent that monitoring devices when dispelling the heat, and the dust gets into monitoring devices's inside.

Preferably, a vent is formed in the middle of the upper surface of the shell, a third metal protective net is fixedly mounted inside the vent, and the third metal protective net is arranged to prevent foreign matters from entering the monitoring device from the vent, so that the monitoring device is protected.

Compared with the prior art, the utility model provides an online monitoring device for gas in transformer oil. The method has the following beneficial effects:

this gaseous on-line monitoring device in transformer oil, set up fixed box through the casing bottom at monitoring devices, start the inside radiator fan of fixed box and dispel the heat to monitoring devices's inside, prevent that the inside high temperature of transformer box, lead to monitoring devices internal component to burn out, its monitoring devices's right side surface sets up the protecting crust can carry out anticollision protection to monitoring devices simultaneously, when the right side of protecting crust receives the collision, its protecting crust removes left and applys pressure to buffer spring, buffer spring pressurized produces buffering elasticity and cushions collision force, thereby monitoring devices's casing has been protected, avoided the casing to receive the collision and take place deformation extrusion internal electronic component, online monitoring devices's life has been improved, maintenance cost is reduced, make online monitoring devices can be better monitor work.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the protection mechanism of the present invention;

FIG. 4 is a schematic cross-sectional view of the fixing box of the present invention.

In the figure: the device comprises a shell 1, a protection mechanism 2, a protective shell 201, a first limit groove 202, a fixing rod 203, a buffer spring 204, a second limit groove 205, a groove 206, a through hole 207, a limit block 208, a hydrogen sensitive probe 3, a hydrogen sensor 4, a control module 5, a fixing box 6, a first metal protective net 7, a cooling fan 8, a first fixing frame 9, a dustproof filter net 10, a second metal protective net 11, a ventilation opening 12, a third metal protective net 13 and a second fixing frame 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a gaseous on-line monitoring device in transformer oil, includes casing 1, protection mechanism 2 and hydrogen sensitive probe 3, and protection mechanism 2 sets up in the right side of casing 1, and hydrogen sensitive probe 3 fixed mounting is in the left side of casing 1.

The protection mechanism 2 comprises a protection shell 201 and a first limiting groove 202, the first limiting groove 202 is arranged on the left side of the protection shell 201, a fixing rod 203 is fixedly arranged inside the first limiting groove 202, a buffer spring 204 is fixedly arranged inside the first limiting groove 202, and the buffer spring 204 is sleeved on a rod body of the fixing rod 203.

The right side of the shell 1 is provided with a second limit groove 205, the left wall of the second limit groove 205 is provided with a through hole 207, the inside of the through hole 207 is inserted with a fixed rod 203, the inside of the second limit groove 205 is fixedly provided with a buffer spring 204, the arrangement of the buffer spring 204 can buffer the collision from the right side of the monitoring device, thereby achieving the protection effect on the monitoring device, the right wall of the inside of the shell 1 is provided with a groove 206, the left end of the fixed rod 203 is fixedly provided with a limit block 208, the arrangement of the groove 206 and the limit block 208 can limit the fixed rod 203, the falling-off of the fixed rod 203 in the using process is prevented, the inside of the shell 1 is fixedly provided with a hydrogen sensor 4, the inside of the shell 1 is fixedly provided with a second fixing frame 14, the middle part of the second fixing frame 14 is fixedly provided with a control module 5, and the arrangement of the second fixing frame 14 can play a role in supporting and fixing the control module 5, a fixed box 6 is fixedly installed at the bottom of the shell 1, a first fixed frame 9 is fixedly installed inside the fixed box 6, a heat radiation fan 8 is fixedly installed in the middle of the first fixed frame 9, the heat radiation fan 8 can be started to quickly radiate the inside of the monitoring device, and the influence of overhigh temperature inside the transformer box on the service life of the monitoring device is avoided, a first metal protective net 7 is fixedly installed at an upper port inside the fixed box 6, a second metal protective net 11 is fixedly installed at a lower port inside the fixed box 6, a dustproof filter net 10 is fixedly installed inside the fixed box 6, the dustproof filter net 10 is arranged to prevent dust from entering the inside of the monitoring device when the monitoring device radiates heat, a vent 12 is formed in the middle of the upper surface of the shell 1, a third metal protective net 13 is fixedly installed inside the vent 12, and the third metal protective net 13 is arranged to prevent foreign matters from entering the inside of the monitoring device from the vent 12, thereby achieving the protection effect on the monitoring device, the fixed box 6 is arranged at the bottom of the shell 1 of the monitoring device, the heat radiation fan 8 in the fixed box 6 is started to radiate the inside of the monitoring device, the internal temperature of the transformer box body is prevented from being overhigh, the internal elements of the monitoring device are prevented from being burnt out, meanwhile, the protective shell 201 is arranged on the right side surface of the monitoring device to carry out anti-collision protection on the monitoring device, when the right side of the protective shell 201 is collided, the protective shell 201 moves leftwards to apply pressure to the buffer spring 204, the buffer spring 204 is pressed to generate buffer elastic force to buffer collision force, therefore, the shell 1 of the monitoring device is protected, the shell 1 is prevented from being deformed and extruding internal electronic elements due to collision, the service life of the online monitoring device is prolonged, the maintenance cost is reduced, and the online monitoring device can better perform monitoring work.

In the actual operation process, when the device is used, the fixed box 6 is arranged at the bottom of the shell 1 of the monitoring device, the heat dissipation fan 8 in the fixed box 6 is started to dissipate heat in the monitoring device, the internal temperature of the transformer box is prevented from being overhigh, the burning of the internal elements of the monitoring device is prevented, meanwhile, the protective shell 201 is arranged on the right side surface of the monitoring device to carry out anti-collision protection on the monitoring device, when the right side of the protective shell 201 is collided, the protective shell 201 moves leftwards to apply pressure to the buffer spring 204, the buffer spring 204 is pressed to generate buffer elastic force to buffer collision force, therefore, the shell 1 of the monitoring device is protected, the shell 1 is prevented from being deformed and extruding internal electronic elements due to collision, the service life of the online monitoring device is prolonged, the maintenance cost is reduced, and the online monitoring device can better perform monitoring work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a gaseous on-line monitoring device in transformer oil, includes casing (1), protection mechanism (2) and hydrogen sensitive probe (3), its characterized in that: the protection mechanism (2) is arranged on the right side of the shell (1), and the hydrogen sensitive probe (3) is fixedly arranged on the left side of the shell (1);

protection mechanism (2) are including protective housing (201), first spacing groove (202), the left side in protective housing (201) is seted up in first spacing groove (202), the inside fixed mounting of first spacing groove (202) has dead lever (203), the inside fixed mounting of first spacing groove (202) has buffer spring (204), buffer spring (204) have been cup jointed to the body of rod of dead lever (203).

2. The on-line monitoring device for gas in transformer oil as claimed in claim 1, wherein: the right side of the shell (1) is provided with a second limiting groove (205), the left wall of the second limiting groove (205) is provided with a through hole (207), a fixing rod (203) is inserted into the through hole (207), and a buffer spring (204) is fixedly mounted inside the second limiting groove (205).

3. The on-line monitoring device for gas in transformer oil as claimed in claim 1, wherein: a groove (206) is formed in the right wall of the interior of the shell (1), and a limiting block (208) is fixedly mounted at the left end of the fixing rod (203).

4. The on-line monitoring device for gas in transformer oil as claimed in claim 1, wherein: the hydrogen sensor (4) is fixedly mounted inside the shell (1), the second fixing frame (14) is fixedly mounted inside the shell (1), and the control module (5) is fixedly mounted in the middle of the second fixing frame (14).

5. The on-line monitoring device for gas in transformer oil as claimed in claim 1, wherein: the bottom fixed mounting of casing (1) has fixed box (6), the inside fixed mounting of fixed box (6) has first mount (9), the middle part fixed mounting of first mount (9) has radiator fan (8).

6. The on-line monitoring device for gas in transformer oil as claimed in claim 5, wherein: the dust-proof filter box is characterized in that a first metal protective net (7) is fixedly mounted at an upper port in the fixed box (6), a second metal protective net (11) is fixedly mounted at a lower port in the fixed box (6), and a dust-proof filter screen (10) is fixedly mounted in the fixed box (6).

7. The on-line monitoring device for gas in transformer oil as claimed in claim 1, wherein: a ventilation opening (12) is formed in the middle of the upper surface of the shell (1), and a third metal protective net (13) is fixedly mounted inside the ventilation opening (12).