Valve online maintenance tool

Abstract

The utility model provides an online maintenance tool for a valve, and relates to the technical field of valve maintenance. The device comprises two supporting stand columns, two supports are arranged on the two supporting stand columns respectively, a supporting plate is connected to the two supports in a clamped mode, the bottom ends of the supporting stand columns are matched with positioning holes formed in a valve body connecting support or a valve body, and the supports are movably connected with the supporting stand columns. The supporting plate is provided with a fixing hole matched with an ejector pin of the hydraulic puller. The tool can be matched with a hydraulic puller to take down a valve gland, and online maintenance of the valve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve maintenance, in particular to an on-line valve maintenance tooling. Background Art

[0002] In the petrochemical field, the application of on-off valves is increasing day by day. During the use process, the stability of the instrument directly affects the stability and safety of equipment and devices. Among them, during the use of valves, their sealing performance and the sealing performance of the packing directly affect the process flow and production process safety. Since the valve stem packing of the valve belongs to dynamic sealing, when the gland pre-tightening force is insufficient or during long-term operation, the packing sealing performance fails and external leakage occurs.

[0003] In the prior art, when maintaining valves used on pipelines carrying dangerous materials, due to problems such as too large valve port diameter, difficult offline of the valve, and long maintenance time, production is affected, and the front and rear hand valves cannot be maintained offline due to internal leakage. At the same time, due to serious external leakage caused by packing failure, the gland is severely rusted and locked with the valve stem and cannot be removed, and the gland needs to be taken out after heating. Sometimes, due to the characteristics of the material, heating is not allowed, resulting in the inability to take out the gland. When the leakage is serious, system shutdown, production suspension or safety accidents occur. Summary of the Utility Model

[0004] The purpose of the utility model is to develop an on-line valve maintenance tooling that can cooperate with a hydraulic puller to remove the valve gland and realize on-line valve maintenance.

[0005] The utility model is realized through the following technical solutions:

[0006] An on-line valve maintenance tooling, comprising:

[0007] Two support columns;

[0008] Two brackets, respectively arranged on the two support columns;

[0009] A support plate, clamped on the two brackets;

[0010] Wherein, the bottom end of the support column is matched with a positioning hole arranged on the valve body connection bracket or the valve body, the bracket is movably connected with the support column, and the support plate is provided with a fixing hole matched with the ejector pin of the hydraulic puller.

[0011] Optionally, the bracket is threadedly connected with the support column.

[0012] Optionally, the outer wall of the upper part of the support column is provided with adjusting threads, and an adjusting nut is threadedly connected to the adjusting threads, and the bracket is connected with the adjusting nut.

[0013] Optionally, the bracket includes a vertical portion and a horizontal portion that are vertically connected. The vertical portion is connected to the side wall of the adjusting nut, and the horizontal portion is snap-fitted with the support plate.

[0014] Optionally, a diagonal brace is provided between the vertical portion and the horizontal portion. One end of the diagonal brace is connected to the vertical portion, and the other end of the diagonal brace is connected to the horizontal portion.

[0015] Optionally, the support plate includes a middle plate, and side plates are respectively connected to the middle parts on both sides of the middle plate. The fixing hole is provided at the center of the middle plate.

[0016] Optionally, a side card slot and a main card slot are provided at the top of the horizontal portion of the bracket. The side card slot is located on one side of the top surface of the horizontal portion close to the support column. The shape and position of the side card slot correspond to those of the side plate of the support plate, and the main card slot is adapted to the shape of the middle plate of the support plate.

[0017] Optionally, a first connecting column is coaxially connected to the bottom end of the support column. The outer diameter of the first connecting column is smaller than that of the support column. A second connecting column is coaxially connected to the bottom end of the first connecting column. The outer diameter of the second connecting column is smaller than that of the first connecting column.

[0018] Optionally, the inner diameter of the positioning hole is adapted to the first connecting column. Adjusting threads are provided on the outer wall of the first connecting column, and internal threads that cooperate with the connecting threads are provided on the inner wall of the positioning hole.

[0019] Optionally, the inner diameter of the positioning hole is adapted to the second connecting column.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The structure of the present utility model is simple and highly practical. By cooperating with a hydraulic puller, the gland of the valve can be removed and installed online. And when the packing fails and leaks severely, resulting in serious corrosion of the gland and seizure with the valve stem and being unable to be removed, the gland can be disassembled through the cooperation of the tooling and the hydraulic puller without heating for gland disassembly. In addition, the present utility model has low cost, is convenient to carry and install, and the height of the bracket can be adjusted according to the situation, facilitating the maintenance operation of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 is Figure 1 the top view of

[0025] Reference numerals: 1, support column; 2, first connecting column; 3, second connecting column; 4, adjusting nut; 5, bracket; 51, vertical part; 52, horizontal part; 521, side card slot; 522, main card slot; 53, diagonal brace; 6, support plate; 61, middle plate; 62, side plate; 63, fixing hole. Detailed implementation manners

[0026] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0029] As Figure 1 and Figure 2 shown, the present utility model discloses an on-line maintenance tooling for valves, including two support columns 1 arranged parallel to each other. The upper parts of the two support columns 1 are provided with adjusting threads, and an adjusting nut 4 is threadedly engaged with the adjusting threads. The outer diameter of the support column 1 is 30 mm, the length is 450 mm, and the length of the part without the adjusting thread is 200 mm.

[0030] The bottom end of the support column 1 is coaxially connected with a cylindrical first connecting column 2. The outer diameter of the first connecting column 2 is smaller than that of the support column 1, and connecting threads are provided on the outside of the first connecting column 2. The bottom end of the first connecting column 2 is coaxially provided with a cylindrical second connecting column 3, and the outer diameter of the second connecting column 3 is smaller than that of the first connecting column 2.

[0031] The valve body connection bracket 5 of the valve or the valve body is provided with a positioning hole corresponding to the support column 1. The inner diameter of the positioning hole is not greater than the outer diameter of the support column 1. The inner diameter of the positioning hole can be adapted to the first connecting column 2 and the inner wall of the positioning hole is provided with an internal thread that matches the connecting thread. The inner diameter of the positioning hole can also be adapted to the second connecting column 3.

[0032] Brackets 5 are connected to the side walls of both adjusting nuts 4. The brackets 5 are L-shaped and include a vertical portion 51 and a horizontal portion 52 that are perpendicularly connected. The vertical portion 51 is connected to the outer wall of the adjusting nut 4, and the horizontal portion 52 is connected to the side wall of the top end of the vertical portion 51 that is away from the support column 1. A diagonal brace 53 is provided between the vertical portion 51 and the horizontal portion 52. One end of the diagonal brace 53 is connected to the vertical portion 51, and the other end of the diagonal brace 53 is connected to the horizontal portion 52.

[0033] A support plate 6 is connected between the brackets 5 of the two adjusting nuts 4. The support plate 6 is snap-fitted on the tops of the horizontal portions 52 of the two brackets 5. The support plate 6 includes an intermediate plate 61. Middle parts on both sides of the intermediate plate 61 are respectively connected with side plates 62. A fixing hole 63 is provided at the center of the intermediate plate 61, and the fixing hole 63 is matched with the thimble of the hydraulic puller. Side slots 521 and main slots 522 are provided at the top of the horizontal portion 52 of the bracket 5. The side slot 521 is located on one side of the top surface of the horizontal portion 52 close to the support column 1. The shape and position of the side slot 521 correspond to those of the side plate 62 of the support plate 6. The main slot 522 is adapted to the shape of the intermediate plate 61 of the support plate 6. When the two brackets 5 are snap-fitted with the support plate 6, the two side plates 62 of the support plate 6 are respectively snapped into the side slots 521 of the horizontal portions 52 of the two brackets 5, and the intermediate plate 61 of the support plate 6 is stuck in the main slots 522 of the horizontal portions 52 of the two brackets 5, and a gap is left between the two brackets 5, so that a gap is left below the fixing hole 63. Therefore, the length of the main slot 522 does not exceed half of the length of the intermediate plate 61 of the support plate 6.

[0034] When performing on-line maintenance of the valve, first adjust the height of the bracket 5 on the support column 1. By rotating the support column 1, the adjusting thread is threadedly engaged with the adjusting nut 4, and the bracket 5 slides on the support column 1 to realize the position adjustment of the bracket 5 on the support column 1. Through the first connecting column 2 or the second connecting column 3 at the bottom ends of the two support columns 1, the support column 1 is connected to the valve body connection bracket 5 or the positioning hole on the valve body. The positioning hole can be threadedly connected to the first connecting column 2 or inserted into the second connecting column 3. After the support column 1 is connected to the positioning hole, place the support plate 6 on the two brackets 5, then place the hydraulic puller above the support plate 6. The thimble at the bottom of the hydraulic puller is connected to the fixing hole 63 on the support plate 6, and the claw feet of the hydraulic puller hook the gland. The hydraulic puller operates to pull out the gland through the claw feet.

[0035] The utility model has a simple structure and strong practicability. By cooperating with a hydraulic puller, the gland of the valve can be removed and installed online. When the packing fails and leaks severely, resulting in serious corrosion of the gland and seizure with the valve stem and being unable to be removed, the gland can be disassembled through the cooperation of the tooling and the hydraulic puller, without heating for gland disassembly. In addition, the utility model has low cost, is convenient to carry and install, and the height of the bracket 5 can be adjusted according to the situation, facilitating the maintenance operation of maintenance workers.

[0036] The above embodiments are only the preferred embodiments of the utility model, and do not limit the technical solutions of the utility model. As long as the technical solutions that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the utility model.

Claims

1. A valve online maintenance tool, characterized in that: include: Two support columns; Two brackets are respectively arranged on two supporting columns; A support plate, clamped on the two brackets; The bottom end of the support column cooperates with a positioning hole provided on the valve body connecting bracket or the valve body, the bracket is movably connected to the support column, and the support plate is provided with a fixing hole that cooperates with the ejector pin of the hydraulic puller.

2. The valve online maintenance tool according to claim 1, characterized in that: The bracket is threadedly connected to the supporting column.

3. The valve online maintenance tool according to claim 2 is characterized in that: An adjusting thread is arranged on the outer wall of the upper part of the supporting column, an adjusting nut is threadedly connected to the adjusting thread, and the bracket is connected to the adjusting nut.

4. The valve online maintenance tool according to claim 3 is characterized in that: The bracket comprises a vertical portion and a horizontal portion which are vertically connected, the vertical portion is connected to the side wall of the adjusting nut, and the horizontal portion is clamped to the support plate.

5. The valve online maintenance tool according to claim 4, characterized in that: An oblique brace is provided between the vertical portion and the horizontal portion, one end of the oblique brace is connected to the vertical portion, and the other end of the oblique brace is connected to the horizontal portion.

6. The valve online maintenance tool according to claim 5, characterized in that: The support plate comprises a middle plate, the middle parts of both sides of the middle plate are respectively connected with side plates, and the fixing hole is arranged at the center of the middle plate.

7. The valve online maintenance tool according to claim 6, characterized in that: A side slot and a main slot are provided at the top of the horizontal part of the bracket. The side slot is located on one side of the top surface of the horizontal part close to the supporting column. The side slot corresponds to the shape and position of the side plate of the supporting plate, and the main slot is adapted to the shape of the middle plate of the supporting plate.

8. The valve online maintenance tool according to any one of claims 1 to 7, characterized in that: The bottom end of the support column is coaxially connected to a first connection column, the outer diameter of the first connection column is smaller than the support column, and the bottom end of the first connection column is coaxially connected to a second connection column, the outer diameter of the second connection column is smaller than the first connection column.

9. The valve online maintenance tool according to claim 8, characterized in that: The inner diameter of the positioning hole is adapted to the first connecting column, an adjusting thread is arranged on the outer wall of the first connecting column, and an internal thread matching the connecting thread is arranged on the inner wall of the positioning hole.

10. The valve online maintenance tool according to claim 8, characterized in that: The inner diameter of the positioning hole is adapted to the second connecting column.

Images