CN215988347U

CN215988347U - Mechanical seal transformer oiling frock

Info

Publication number: CN215988347U
Application number: CN202121248168.6U
Authority: CN
Inventors: 王军; 陈铭; 张柱; 毕纪强; 杨圣军
Original assignee: Anhui Guangsheng Vacuum Technology Co ltd
Current assignee: Anhui Guangsheng Vacuum Technology Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-03-08
Anticipated expiration: 2031-06-04

Abstract

The utility model provides an oil injection tool for a mechanical seal transformer, which comprises a valve seat and a valve core, wherein the valve seat is fixed on a transformer shell, the valve core is arranged in the valve seat, and the valve core and the valve seat are matched for plugging or opening an oil injection port on a distribution transformer. The distribution transformer oil injection tool is suitable for oil injection and oil drainage operations of a distribution transformer from a bottom valve core, has a compact and small structure, is convenient to install and operate, and can avoid transformer oil leakage in the prior oil injection and oil drainage operations.

Description

Mechanical seal transformer oiling frock

Technical Field

The utility model relates to the technical field of transformers, in particular to a mechanical seal transformer oil injection tool.

Background

The oil drain valve at the bottom of the distribution transformer generally adopts a mode of a valve seat, a sealing piece, a valve core and a valve cover (the valve cover is a cover with internal threads), and has higher requirements on an oil injection process along with the improvement of the capacity of a distribution transformer product. The new oil injection process requires vacuum oil injection and also injection from the bottom. Under the condition that the oil drain valve is not changed, a special tool is needed to be used for unscrewing the valve core (the outer side of the valve core is an outer hexagonal shape, and is convenient to screw down by a wrench) in a sealed environment, and transformer oil is injected.

And opening the valve cover, unscrewing the valve core, and installing a tool for oil injection. After the oiling, when demolising the frock, there can be some transformer oil to flow from the gap between disk seat and the sealing member, produce extravagantly to form the potential safety hazard. If the valve core cannot be screwed down immediately, transformer oil in the transformer can continuously flow out, and larger waste is generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides an oil injection tool for a mechanical seal transformer, which avoids transformer oil leakage during oil injection and oil discharge operations.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a mechanical seal transformer oiling frock, includes disk seat and case, the disk seat is fixed in on the transformer case, and the case setting is in the disk seat, and case and disk seat cooperation are used for the shutoff or open the oiling mouth that is located distribution transformer, in be connected with the oiling frock on the disk seat, the oiling frock includes the frock closing cap and imbeds the frock core bar of frock closing cap, the frock closing cap links to each other with the disk seat, the frock core bar can with case end-to-end connection.

Further, the tool sealing cover comprises a tool base and a tool upper cover, the tool base is fixed with the valve seat through threads, the tool upper cover is fixed to the other side of the tool base, and a mechanical seal is arranged in the tool upper cover.

Furthermore, the diameter of an opening on one side of the tool base, which is opposite to the tool upper cover, is smaller than the diameter of an inner cavity of the tool upper cover.

Further, the inner cavity of the upper cover of the tool is overall trapezoidal, and the diameter of the inner cavity on one side of the tool base is smaller than that of the inner cavity on one side of the tool base.

Further, the mechanical seal is positioned in the inner cavity of the upper cover of the tool, the diameter of the middle part of the mechanical seal is larger than the diameters of the two end parts, and the mechanical seal is in a compressed state.

Furthermore, an inner hexagonal structure matched with the valve core is arranged on one side, facing the valve core, of the tool core bar and is used for driving the valve core to rotate through the core bar.

Furthermore, an external thread is processed on one side of the tool core rod extending out of the upper cover of the tool and used for installing a self-sealing quick joint.

Furthermore, a round hole is formed in the tool core rod in a penetrating mode and used for inserting the long rod and lengthening the force arm.

Further, a sealing ring is arranged between the tool base and the tool upper cover.

Compared with the prior art, the utility model has the beneficial effects that: distribution transformer oiling frock is applicable to distribution transformer from the oiling and the oil drain operation of bottom case department, and compact structure is small and exquisite, and easy to assemble and operation can avoid the transformer oil seepage when oiling oil drain operation in the past.

Drawings

The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:

fig. 1 schematically shows a structural schematic diagram of a mechanical seal transformer oiling tool provided in an embodiment of the utility model.

Reference numbers in the figures: 1-valve seat, 2-valve core, 3-tool base, 4-tool upper cover, 5-tool core rod and 6-mechanical seal.

Detailed Description

It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.

An embodiment according to the present invention is shown in connection with fig. 1. A mechanical seal transformer oil injection tool comprises a valve seat 1 and a valve core 2, wherein the valve seat 1 is fixed on a transformer shell, the valve core 2 is fixed through a threaded valve seat 1, and when an oil injection port on a distribution transformer needs to be opened, the valve core 2 is rotated to be separated from the valve seat 1 to leave a gap for transformer oil to flow out of the valve core 2 conveniently; if the user wants to return the position to the original position, the valve core 2 is rotated again.

Based on the technical scheme, the original valve core 2 and the original valve seat 1 are fixedly provided with the oil injection tool for avoiding transformer oil leakage during oil injection and oil drainage operations, and the oil injection tool comprises a tool sealing cover and a tool core rod 5 embedded in the tool sealing cover. The tool sealing cover comprises a tool base 3 and a tool upper cover 4, an internal thread is arranged on the inner side of the tool base 3, and the tool base 3 can be fixed on the valve seat 1 by matching with the external thread on the outer side of the valve seat 1. The tooling upper cover 4 is fixed with the tooling base 3 through a bolt, and the tooling core rod 5 is embedded into the tooling base 3 and the tooling upper cover 4.

The whole tool core rod 5 is in a T shape, the larger diameter part of the tool core rod is positioned in the inner cavity of the tool base 3 and is matched with the hexagon at the tail end of the valve core 2, so that the tool core rod 5 is provided with an inner hexagonal structure for connecting the valve core 2, the valve core 2 can be driven to rotate by rotating the tool core rod 5, and the action of opening or closing the oil injection port is completed.

And an external thread is processed on one side of the tooling core rod 5 extending out of the tooling upper cover 4 and is used for installing a self-sealing quick joint. The penetrating tool core rod 5 is provided with a round hole, so that when the valve core 2 is screwed down, a screwdriver or a steel bar lengthened force arm can be placed in the pipeline, and the valve core 2 can be screwed down or loosened easily.

The opening diameter of the tool base 3 on one side relative to the tool upper cover 4 is smaller than the diameter of the inner cavity of the tool upper cover 4, the inner cavity of the tool upper cover 4 is wholly trapezoidal, and the diameter of the inner cavity on one side far away from the tool base 3 is smaller than the diameter of the inner cavity on one side close to the tool base 3. The mechanical seal 6 is arranged in the inner cavity of the tool upper cover 4, so that the diameter of the middle part of the mechanical seal 6 is larger than the diameters of the two end parts, and when the tool upper cover 4 is fixed on the tool base 3, the mechanical seal 6 is in a compressed state.

In order to enhance the sealing performance of the oil injection tool, sealing rings can be arranged at the joint of the tool base 3 and the valve seat 1 and the joint of the tool base 3 and the tool upper cover 4.

When the oil filling port needs to be opened, the tooling core rod 5 is rotated to ensure that the inner hexagonal structure of the tooling core rod is matched with the outer hexagonal structure at the tail end of the valve core 2, the tooling core rod 5 is rotated to take out the valve core 2, and the oil filling port is opened. If the oil injection port needs to be closed, the tool core rod 5 is rotated reversely.

Distribution transformer oiling frock is applicable to distribution transformer from the oiling and the oil drain operation of bottom case 2 department, and compact structure is small and exquisite, and easy to assemble and operation can avoid the transformer oil seepage when oiling oil drain operation in the past.

The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.

Claims

1. The utility model provides a mechanical seal transformer oiling frock, includes disk seat (1) and case (2), disk seat (1) is fixed in on the transformer case, and case (2) set up in disk seat (1), and case (2) and disk seat (1) cooperation are used for the shutoff or open the oiling mouth that is located distribution transformer, its characterized in that, in be connected with the oiling frock on disk seat (1), the oiling frock includes frock closing cap and frock core bar (5) of embedding frock closing cap, the frock closing cap links to each other with disk seat (1), frock core bar (5) can with case (2) end-to-end connection.

2. The oil injection tooling for the mechanical seal transformer according to claim 1, wherein the tooling cover comprises a tooling base (3) and a tooling upper cover (4), the tooling base (3) is fixed with the valve seat (1) through threads, the tooling upper cover (4) is fixed on the other side of the tooling base (3), and a mechanical seal (6) is arranged in the tooling upper cover (4).

3. The oil injection tooling for the mechanical seal transformer of claim 2, wherein the diameter of an opening on one side of the tooling base (3) opposite to the tooling upper cover (4) is smaller than the diameter of an inner cavity of the tooling upper cover (4).

4. The oil injection tooling for the mechanical seal transformer according to claim 2, wherein the inner cavity of the upper tooling cover (4) is entirely trapezoidal, and the diameter of the inner cavity on the side far away from the tooling base (3) is smaller than the diameter of the inner cavity on the side close to the tooling base (3).

5. The mechanical seal transformer oiling tool according to any one of claims 2-4, wherein the mechanical seal (6) is positioned in the inner cavity of the upper cover (4) of the tool, the diameter of the middle part of the mechanical seal (6) is larger than the diameters of the two end parts, and the mechanical seal (6) is in a compressed state.

6. The oil filling tool for the mechanical seal transformer according to claim 1, wherein a hexagonal socket structure matched with the valve core (2) is arranged on one side of the tool core rod (5) facing the valve core (2) and used for driving the valve core (2) to rotate through the core rod.

7. The oil injection tooling for the mechanical seal transformer according to claim 6, wherein an external thread is processed on one side of the tooling core rod (5) extending out of the tooling upper cover (4) for installing a self-sealing quick coupling.

8. The oil injection tooling for the mechanical seal transformer according to claim 7, wherein a round hole is formed through the tooling core rod (5) for inserting a long rod to lengthen the force arm.

9. The oil injection tooling for the mechanical seal transformer of claim 2, wherein a seal ring is arranged between the tooling base (3) and the tooling upper cover (4).