Small device for sealing test of transformer valve

Abstract

The utility model relates to the technical field of valve sealing performance inspection, in particular to a small device for a transformer valve sealing test, which comprises a supporting plate, a plurality of supporting columns are connected around the supporting plate, connecting rods are arranged among the supporting columns, and a vertical plate is fixedly connected onto the connecting rods. A clamping mechanism is detachably connected to the outer side of the vertical plate, and an oil pipe connector is arranged on the vertical plate and communicated with a hydraulic pump through an oil pipe. Through the arrangement of the plurality of clamping mechanisms arranged on the vertical plate and the distribution valves, the valve sealing performance detection efficiency is improved, the operation is simple and convenient, the manufacturing cost is low, and the valve sealing performance detection device is suitable for small-batch production or trial production.

Description

Technical Field

[0001] The utility model relates to the technical field of valve sealing performance inspection, in particular to a small device used for transformer valve sealing test. Background Art

[0002] The design life of transformer valves is more than 10 years. Sealing is an important indicator of its life. To test its sealing, a corresponding test device is necessary. The existing valve sealing test device has a relatively complex structure, including a main machine, an operating table, an oil storage tank, various pipelines, circuits, power failure protection devices, automatic pressure relief devices during power failures, and a booster pump. The pressure test range is hundreds of MPa, which can be used for testing various valves and is suitable for mass production (annual production of tens of thousands to hundreds of thousands of products).

[0003] Although the above-mentioned sealing test device has many advantages, it is large in size and occupies a large area, has a complex design structure, is complex to operate, requires high skills from the operator, and has a high manufacturing cost. It is not suitable for small-scale production or trial production of new products. Therefore, it is necessary to explore a new small-scale test device to solve the sealing test problem of small-scale production or trial production of valves. Utility Model Content

[0004] In view of the above problems, the utility model provides a small device for transformer valve sealing test, which is simple and convenient to operate and has a low manufacturing cost and is suitable for small batch production or trial production.

[0005] A small device for transformer valve sealing test comprises a support plate, a plurality of support columns are connected around the support plate, connecting rods are arranged between the support columns, a vertical plate is fixedly connected to the connecting rod, a clamping mechanism is detachably connected to the outer side of the vertical plate, an oil pipe joint is arranged on the vertical plate, and the oil pipe joint is connected to a hydraulic pump through an oil pipe.

[0006] Preferably, the clamping mechanism comprises a plurality of studs, one end of each stud is screwed to a threaded hole on the vertical plate, and the other end is provided with a nut.

[0007] Preferably, a valve seat plate and a clamping plate are also sleeved on the stud.

[0008] Preferably, the vertical plate is provided with a first through hole, the valve seat plate is provided with a protrusion having the same cross-sectional size as the first through hole, the protrusion is snapped into the first through hole, the protrusion is provided with a second through hole, and the oil pipe joint extends into the second through hole.

[0009] Preferably, a distribution valve is provided inside the connecting rod, an inlet of the distribution valve is connected to the hydraulic pump through an oil pipe, and an outlet of the distribution valve is connected to an oil pipe joint through an oil pipe.

[0010] Preferably, the hydraulic pump is placed above the support plate, and a hydraulic gauge and a handle are provided on the hydraulic pump.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The efficiency of valve sealing detection is improved by arranging multiple clamping mechanisms and distribution valves on the vertical plate.

[0013] 2. The utility model is simple and convenient to operate, and has a low manufacturing cost, and is suitable for small-batch production or trial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the overall structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the outer side of the valve seat plate of the utility model;

[0017] Figure 4 It is a schematic diagram of the inner side of the valve seat plate of the utility model.

[0018] In the figure: 1. support plate; 2. support column; 3. connecting rod; 4. vertical plate; 41. threaded hole; 42. first through hole; 5. clamping mechanism; 51. stud; 52. nut; 53. valve seat plate; 54. clamping plate; 55. bump; 56. second through hole; 6. oil pipe joint; 7. oil pipe; 8. hydraulic pump; 81. hydraulic gauge; 82. handle; 9. distribution valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] refer to Figure 1 The utility model provides a small device for transformer valve sealing test, including a support plate 1, a plurality of support columns 2 are connected around the support plate 1, connecting rods 3 are arranged between the support columns 2, a vertical plate 4 is fixedly connected to the connecting rod 3, a clamping mechanism 5 is detachably connected to the outer side of the vertical plate 4, an oil pipe joint 6 is arranged on the vertical plate 4, and the oil pipe joint 6 is connected to a hydraulic pump 8 through an oil pipe 7.

[0022] refer to Figure 2 The clamping mechanism 5 includes a plurality of studs 51 , one end of the stud 51 is screwed to the threaded hole 41 on the vertical plate 4 , and the other end is provided with a nut 52 .

[0023] For the convenience of operation, the hydraulic pump 8 is placed above the support plate 2. The hydraulic pump 8 is provided with a hydraulic gauge 81 and a handle 82. The handle 82 is pressed as required to observe the value of the hydraulic gauge 81.

[0024] Example 2

[0025] Based on Example 1, Figure 1 and Figure 2 In order to stably clamp the valve, a valve seat plate 53 and a clamping plate 54 are also sleeved on the stud 51.

[0026] refer to Figure 3 and Figure 4 A first through hole 42 is formed on the vertical plate 4, a protrusion 55 having the same cross-sectional size as the first through hole 42 is formed on the valve seat plate 53, the protrusion 55 is snap-fitted into the first through hole 42, a second through hole 56 is formed on the protrusion 55, and the oil pipe connector 6 extends into the second through hole 56.

[0027] refer to Figure 1 A distribution valve 9 is provided on the inner side of the connecting rod 3 , the inlet of the distribution valve 9 is connected to the hydraulic pump 8 through the oil pipe 7 , and the outlet of the distribution valve 9 is connected to the oil pipe joint 6 through the oil pipe 7 .

[0028] The working principle of the utility model is as follows: align the mounting hole of the valve to be inspected with the stud 51, push it in so that its end face abuts against the valve seat plate 53, then insert the clamping plate 54 onto the stud 51, push it in so that it abuts against the outer end face of the valve, tighten the nut 52, and then operate the handle 82 on the hydraulic pump 8 as required, observe the value of the hydraulic gauge 81, and the corresponding test can be completed. Multiple sets of detection clamping mechanisms are installed on the vertical plate to improve the efficiency of detection.

[0029] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A small device for transformer valve sealing test, comprising a support plate (1), characterized in that: A plurality of support columns (2) are connected around the support plate (1), connecting rods (3) are provided between the support columns (2), a vertical plate (4) is fixedly connected to the connecting rod (3), a clamping mechanism (5) is detachably connected to the outer side of the vertical plate (4), an oil pipe joint (6) is provided on the vertical plate (4), and the oil pipe joint (6) is connected to a hydraulic pump (8) via an oil pipe (7).

2. The small device for transformer valve sealing test according to claim 1 is characterized in that: The clamping mechanism (5) comprises a plurality of studs (51), one end of each stud (51) being screwed to a threaded hole (41) on the vertical plate (4), and the other end of each stud (51) being provided with a nut (52).

3. The small device for transformer valve sealing test according to claim 2 is characterized in that: The stud (51) is also sleeved with a valve seat plate (53) and a clamping plate (54).

4. The small device for transformer valve sealing test according to claim 3 is characterized in that: The vertical plate (4) is provided with a first through hole (42), the valve seat plate (53) is provided with a protrusion (55) having a cross-sectional size consistent with that of the first through hole (42), the protrusion (55) being snap-fitted into the first through hole (42), the protrusion (55) being provided with a second through hole (56), and the oil pipe joint (6) extending into the second through hole (56).

5. The small device for transformer valve sealing test according to claim 4 is characterized in that: A distribution valve (9) is provided inside the connecting rod (3); an inlet of the distribution valve (9) is connected to a hydraulic pump (8) through an oil pipe (7); and an outlet of the distribution valve (9) is connected to an oil pipe joint (6) through an oil pipe (7).

6. The small device for transformer valve sealing test according to claim 5, characterized in that: The hydraulic pump (8) is placed above the support plate (1), and a hydraulic gauge (81) and a handle (82) are provided on the hydraulic pump (8).

Images