Disassembling and assembling tool for sealing element of throttle valve

Abstract

The utility model provides a tool for disassembling and assembling a sealing element of a throttle valve, the tool for disassembling and assembling the sealing element comprises a fixing frame with an annular structure and a handle arranged on the radial outer side of the fixing frame, and the fixing frame comprises a first part and a second part which are axially integrated; wherein the first part is uniformly provided with a plurality of first fasteners along the circumferential direction, and the distribution structure of the plurality of first fasteners can be matched with the structure of the sealing gland; a plurality of second fasteners are evenly arranged on the second part in the circumferential direction, and the distribution structure of the second fasteners can be matched with the structure of the sealing plug. The sealing element disassembling tool has the advantages that the sealing gland and the sealing plug can be disassembled and assembled through the sealing element disassembling tool, and the oil nozzle can be replaced safely and efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas production equipment, in particular to a sealing component disassembly and assembly tool for a throttle valve, which is suitable for a sealing gland and a sealing plug of a throttle valve. Background Art

[0002] With the increasing exploitation of gas wells, most of the current gas well production processes rely on fixed throttle valves to control production pressure. Fixed throttle valves play a vital role in gas well production. Their stability and reliability are directly related to the production and benefits of gas wells. Therefore, they often need to be maintained during production to ensure their normal operation. During maintenance, it is often necessary to replace the nozzle by disassembling and assembling the sealing gland and the sealing plug. In actual operation, due to the lack of special disassembly and assembly tools for the sealing gland and the sealing plug, the efficiency of nozzle replacement is low and there are serious safety hazards.

[0003] For a long time, the replacement of oil nozzles has been carried out with simple tools such as traditional hammers and screwdrivers to disassemble and assemble the sealing glands and sealing plugs. This method is not only complicated to operate and inefficient, but also has many safety hazards. First, the use of tools such as hammers and screwdrivers requires operators to have high skills and experience, otherwise it is easy to damage the throttle valve and affect the normal production of the gas well; secondly, when using these tools for disassembly and installation, due to improper operation or tool falling off, accidental injuries may occur, posing a threat to the life safety of the operator; in addition, with the continuous development of gas well mining technology, the requirements for oil nozzle replacement work are getting higher and higher, and traditional tools such as hammers and screwdrivers can no longer meet the needs of modern gas well mining.

[0004] Therefore, it is necessary to study a seal disassembly and assembly tool for a throttle valve to solve the above problems or alleviate the impact of the above problems. Utility Model Content

[0005] The utility model provides a sealing disassembly and assembly tool for a throttle valve, which can fix a fixing frame and a sealing cover circumferentially by cooperating with a plurality of first fasteners, and can rotate circumferentially together under the drive of a handle to realize the disassembly and assembly of the sealing cover; and can fix a fixing frame and a sealing plug circumferentially by cooperating with a plurality of second fasteners, and can rotate circumferentially together under the drive of a handle to realize the disassembly and assembly of the sealing plug.

[0006] The seal disassembly and assembly tool for a throttle valve of the utility model may include a fixing frame with an annular structure and a handle arranged on the radial outer side of the fixing frame, wherein the fixing frame includes a first part and a second part which are axially integrated; wherein,

[0007] The first part is evenly provided with a plurality of first fasteners along the circumferential direction, and the distribution structure of the plurality of first fasteners can cooperate with the structure of the sealing gland, so that the fixing frame and the sealing gland are fixed in the circumferential direction and can rotate together in the circumferential direction under the drive of the handle;

[0008] The second part is evenly provided with a plurality of second fasteners along the circumferential direction, and the distribution structure of the plurality of second fasteners can cooperate with the structure of the sealing plug, so that the fixing frame and the sealing plug are circumferentially fixed and can rotate circumferentially together under the drive of the handle.

[0009] In one embodiment, both the first fastener and the second fastener are shaft-like structures, the axial direction of which is consistent with the radial direction of the fixing frame, and can be tightly fixed to the sealing cover or the sealing plug through the axial end.

[0010] In one embodiment, the first part and the second part are both uniformly provided with a plurality of radially penetrating first threaded holes along the circumferential direction, and the first fastener and the second fastener are bolts matching the first threaded holes.

[0011] In one embodiment, the first fastener and the second fastener each include a main shaft and a secondary shaft connected to each other, and the main shaft cooperates with the secondary shaft to adjust the length of the first fastener or the second fastener.

[0012] In one embodiment, the main shaft is telescopically connected to the secondary shaft, one end of the main shaft connected to the secondary shaft is provided with a second threaded hole extending along its axial direction, and the outer surface of the secondary shaft is provided with an external thread matching the second threaded hole.

[0013] In one embodiment, the main shaft and the secondary shaft are foldably connected, the main shaft and the secondary shaft are hinged, and the secondary shaft can be turned over to be parallel to the main shaft.

[0014] In one embodiment, the handle is a rod-shaped structure and two handles are respectively provided along the radial outer side of the fixing frame.

[0015] In one embodiment, the fixing frame is provided with a third threaded hole arranged along its radial direction, and the end of the handle is provided with an external thread matching the third threaded hole.

[0016] In one embodiment, the handle is a telescopic rod, the length of which can be adjusted telescopically along its axial direction.

[0017] In one embodiment, an end of the handle away from the fixing frame is provided with an anti-slip sleeve.

[0018] The utility model provides a sealing disassembly and assembly tool for a throttle valve, which has at least the following beneficial effects compared with the prior art:

[0019] The seal disassembly and assembly tool for the throttle valve of the utility model can fix the fixing frame and the sealing gland circumferentially through the cooperation of multiple first fasteners, and can rotate circumferentially together under the drive of the handle to realize the disassembly and assembly of the sealing gland; and can fix the fixing frame and the sealing plug circumferentially through the cooperation of multiple second fasteners, and can rotate circumferentially together under the drive of the handle to realize the disassembly and assembly of the sealing plug. In this way, the sealing gland and the sealing plug can be disassembled and assembled by using one tool, making the replacement of the oil nozzle safe and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] Figure 1 This is a structural schematic diagram of a seal disassembly and assembly tool according to an embodiment of the utility model;

[0022] Figure 2 This is another structural schematic diagram of a seal disassembly and assembly tool according to an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the telescopic connection between the main shaft and the secondary shaft of the embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the folding connection between the main shaft and the secondary shaft of the embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a handle according to an embodiment of the utility model.

[0026] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0027] Reference numerals:

[0028] 1-fixed frame, 2-handle, 3-first fastener, 4-second fastener, 5-main shaft, 6-secondary shaft, 7-anti-slip sleeve. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the structure of the seal disassembly and assembly tool of the embodiment of the utility model, which is a front view; Figure 2 This is another schematic diagram of the structure of the seal disassembly and assembly tool of the embodiment of the utility model, which is a top view;

[0031] Figure 3 It is a structural schematic diagram of the telescopic connection between the main shaft and the secondary shaft of the embodiment of the utility model, and the main shaft and the secondary shaft are in a separated state; Figure 4 It is a structural schematic diagram of a folding connection between the main shaft and the secondary shaft of an embodiment of the utility model, and the main shaft and the secondary shaft are in an extended state; Figure 5 It is a structural schematic diagram of a handle according to an embodiment of the utility model.

[0032] like Figure 1 and Figure 2 As shown, the seal disassembly and assembly tool for a throttle valve of the utility model may include a fixing frame 1 with an annular structure and a handle 2 arranged radially outside the fixing frame 1, wherein the fixing frame 1 includes an axially integrated first part and a second part; wherein,

[0033] The first part is evenly provided with a plurality of first fasteners 3 along the circumferential direction, and the distribution structure of the plurality of first fasteners 3 can match the structure of the sealing gland, so that the fixing frame 1 and the sealing gland are fixed in the circumferential direction and can rotate together in the circumferential direction under the drive of the handle 2;

[0034] The second part is evenly provided with a plurality of second fasteners 4 along the circumferential direction. The distribution structure of the plurality of second fasteners 4 can match the structure of the sealing plug, so that the fixing frame 1 and the sealing plug are circumferentially fixed and can rotate circumferentially together driven by the handle 2.

[0035] Specifically, the handle 2 is disposed on the fixing frame 1 and is a driving member for driving the fixing frame 1 to rotate. The fixing frame 1 is annular and is composed of two parts integrally disposed in the axial direction, including: Figure 1 The first part is shown as being located at the upper part and the second part is shown as being located at the lower part. The first part is capable of enclosing and fixing the side of the sealing gland by means of the distribution structure of the multiple first fasteners 3 provided, which matches the geometric structure of the sealing gland, so that the sealing gland is circumferentially fixed to the fixing frame 1. When the handle 2 drives the fixing frame 1 to rotate circumferentially, the sealing gland rotates circumferentially together with the fixing frame 1, thereby realizing the disassembly and installation of the sealing gland. The second part is capable of enclosing and fixing the side of the sealing gland by means of the distribution structure of the multiple second fasteners 4 provided, which matches the geometric structure of the sealing plug, so that the sealing plug is circumferentially fixed to the fixing frame 1. When the handle 2 drives the fixing frame 1 to rotate circumferentially, the sealing plug rotates circumferentially together with the fixing frame 1, thereby realizing the disassembly and installation of the sealing plug.

[0036] In this way, the disassembly tool surrounds and fixes the seal (such as the sealing cover and the sealing plug) through multiple fasteners (the first fastener 3 or the second fastener 4), and can rotate the seal while preventing the tool from falling off relative to the seal, thereby avoiding accidental injury to the operator; at the same time, by setting the first part and the second part of the fixing frame 1 respectively corresponding to the fixation of the sealing cover and the sealing plug, the sealing cover and the sealing plug can be disassembled and assembled with only one tool, which is convenient to operate and makes the oil nozzle replacement work more efficient; and the disassembly tool can be made of high-quality steel material, which is strong and durable.

[0037] In one example, the first fastener 3 and the second fastener 4 are both shaft-like structures, the axial direction of which is consistent with the radial direction of the fixing frame 1, and can be tightly fixed with the sealing cover or the sealing plug through the axial end.

[0038] Specifically, one end of the fastener is fixedly connected to the fixing frame 1, and the other end extends radially toward the center of the fixing frame 1 and is used to press against the seal, so that multiple fasteners press against the seal from multiple directions in the circumferential direction, thereby achieving fixation of the fixing frame 1 and the seal.

[0039] It should be noted that the geometric structure of the end face of the sealing gland is generally an equilateral triangle or a regular hexagon structure, so that the first fastener 3 is perpendicular to and tightly pressed against the three sides of the sealing gland from three directions with a circumferential interval of 120°, that is, the fixing frame 1 and the sealing gland can be fixed. The geometric structure of the end face of the sealing plug is generally a square structure, so that the second fastener 4 is perpendicular to and tightly pressed against the four sides of the sealing plug from four directions with a circumferential interval of 90°, that is, the fixing frame 1 and the sealing plug can be fixed. It should also be noted that, Figure 2 As shown, one of the first fasteners 3 and one of the second fasteners 4 are at the same circumferential position, and the two appear to overlap when viewed from a top view.

[0040] In one example, the first part and the second part are both uniformly provided with a plurality of radially penetrating first threaded holes along the circumferential direction, and the first fastener 3 and the second fastener 4 are bolts matching the first threaded holes.

[0041] Specifically, the fasteners are arranged as bolts, which are connected by threads and distributed around the circumference of the fixing frame 1. In this way, the fasteners can be fixedly connected to the fixing frame 1, and the length of the fasteners inserted into the fixing frame 1 can be adjusted by screwing, so that the disassembly tool can be suitable for seals of different sizes. Figure 1 and Figure 2 As shown, the bolt head of the fastener is generally located outside the fixing frame 1 to facilitate the application of force by spiral rotation.

[0042] Furthermore, the first part is evenly provided with three first threaded holes at intervals of 120° along its circumference, and the first fastener 3 uses three bolts of matching size and structure. The second part is evenly provided with four first threaded holes at intervals of 90° along its circumference, and the second fastener 4 uses four bolts of matching size and structure.

[0043] like Figure 3 and Figure 4 As shown, in one example, the first fastener 3 and the second fastener 4 both include a main shaft 5 and a secondary shaft 6 connected to each other, and the main shaft 5 cooperates with the secondary shaft 6 to adjust the length of the first fastener 3 or the second fastener 4 .

[0044] In this way, the length of the fastener extending into the fixing frame 1 can be further adjusted through the cooperation between the main shaft 5 and the secondary shaft 6, so that the disassembly tool can be applicable to more seals of different sizes, especially to the case where the sizes of different seals vary greatly.

[0045] In an example, Figure 3 As shown, the main shaft 5 is telescopically connected to the secondary shaft 6, one end of the main shaft 5 connected to the secondary shaft 6 is provided with a second threaded hole extending along its axial direction, and the outer surface of the secondary shaft 6 is provided with an external thread matching the second threaded hole.

[0046] Specifically, the main shaft 5 is fixedly connected to the fixing frame 1, and one end thereof extending into the fixing frame 1 is connected to the secondary shaft 6 by a thread; one end of the secondary shaft 6 is used to contact the seal, and the other end is adjusted by spiral rotation to adjust the depth of the second spiral hole of the main shaft 5, thereby adjusting the length of the fastener extending into the fixing frame 1, so that the fastener can be pressed against the seal. It should be noted that such a telescopic adjustment setting can be set together with the design of the fastener being threadedly connected to the fixing frame 1, that is, the main shaft 5 is fixedly connected to the fixing frame 1 by a thread.

[0047] In an example, Figure 4 As shown, the main shaft 5 and the secondary shaft 6 are foldably connected, the main shaft 5 and the secondary shaft 6 are hinged, and the secondary shaft 6 can be turned over to be parallel to the main shaft 5 .

[0048] Specifically, when the secondary shaft 6 is extended relative to the main shaft 5, its central axis is consistent with the central axis of the main shaft 5, that is, the fastener is in an extended state, and the fastener is long; when the secondary shaft 6 is folded relative to the main shaft 5, its central axis is parallel to the central axis of the main shaft 5, that is, the fastener is in a folded state, and the fastener is short. It should be noted that the surface where the secondary shaft 6 is located in the folding direction relative to the main shaft 5 is perpendicular to the surface where the circumference of the fixing frame 1 is located, so as to prevent the secondary shaft 6 from folding relative to the main shaft 5 when the fixing frame 1 transmits the circumferential rotation torque to the sealing member through the fastener. A locking member can be set between the main shaft 5 and the secondary shaft 6 to lock the extended state or folded state of the main shaft 5 and the secondary shaft 6.

[0049] In an example, Figure 1 As shown, the handle 2 is a rod-shaped structure and two handles are respectively provided along the radial outer side of the fixing frame 1. This makes it convenient for the operator to hold the handle 2 with both hands to apply torque to rotate the fixing frame 1.

[0050] In an example, Figure 5 As shown, the fixing frame 1 is provided with a third threaded hole arranged along its radial direction, and the end of the handle 2 is provided with an external thread matching the third threaded hole (such as Figure 5 In this way, the handle 2 is connected to the fixing frame 1 by threads, which can ensure the fixed connection between the handle 2 and the fixing frame 1. At the same time, the tool itself is easy to disassemble, which is conducive to storage.

[0051] In one example, the handle 2 is a telescopic rod, and its length can be adjusted along its axial direction. Specifically, the telescopic adjustment of the handle 2 can be the same as the telescopic adjustment of the fastener, and the details are not further described. The handle 2 has a telescopic adjustment function, so that it is convenient to store and store in a shortened state, and it is convenient for the operator to apply a larger torque in an extended state.

[0052] In an example, Figure 5 As shown, the end of the handle 2 away from the fixing frame 1 is provided with an anti-slip sleeve 7 (as shown in FIG. Figure 5 Specifically, the anti-skid sleeve 7 is fixedly mounted on the handle 2, and the anti-skid sleeve 7 can increase the friction between the operator's palm and the handle 2 to prevent the operator from slipping when applying torque, thereby improving the safety of the operation.

[0053] In order to better understand the above embodiment, the following further describes the process of replacing the nozzle of a fixed throttle valve using the seal removal tool of the present invention.

[0054] First, place the fixing frame 1 on the sealing gland of the fixed throttle valve, and ensure that the first fastener 3 of the first part of the fixing frame 1 is aligned with the side of the three-ear or hexagonal gland (i.e., the end face is triangular or hexagonal) of the sealing gland. Tighten the first fastener 3 on the fixing frame 1 so that it is pressed against the three-ear or hexagonal gland of the sealing gland, and the fixing frame 1 will be firmly fixed on the sealing gland without loosening.

[0055] Then hold the handle 2 on the fixing frame 1 and prepare to start turning so as to easily rotate the sealing gland of the fixed throttle valve. Slowly turn the handle 2 while observing the rotation of the sealing gland. If resistance or jamming is found, the strength of the handle 2 can be appropriately adjusted to reduce the resistance.

[0056] When the sealing gland is completely turned to the appropriate position, stop rotating the handle 2. At this time, the sealing gland has completely separated from its fixed position on the throttle valve and can be easily removed. That is, gently remove the fixing frame 1 from the sealing gland, put it in a safe and clean place, and then remove the sealing gland.

[0057] Turn the fixing frame 1 upside down and put it on the sealing plug of the fixed throttle valve, making sure that the second fastener 4 in the second part of the fixing frame 1 is aligned with the side of the sealing plug, and then remove the sealing plug in the same way as above, and then you can proceed to the next step of replacing the oil nozzle.

[0058] Finally, after the oil nozzle is replaced, you need to reinstall the sealing cover and sealing plug of the fixed throttle valve. Just follow the above steps in reverse order.

[0059] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A seal disassembly and assembly tool for a throttle valve, characterized in that: The seal disassembly and assembly tool comprises a fixing frame in an annular structure and a handle arranged radially outside the fixing frame, wherein the fixing frame comprises a first part and a second part which are axially integrated; wherein, The first part is evenly provided with a plurality of first fasteners along the circumferential direction, and the distribution structure of the plurality of first fasteners can cooperate with the structure of the sealing gland, so that the fixing frame and the sealing gland are fixed in the circumferential direction and can rotate together in the circumferential direction under the drive of the handle; The second part is evenly provided with a plurality of second fasteners along the circumferential direction, and the distribution structure of the plurality of second fasteners can cooperate with the structure of the sealing plug, so that the fixing frame and the sealing plug are circumferentially fixed and can rotate circumferentially together under the drive of the handle.

2. The seal disassembly and assembly tool for a throttle valve according to claim 1, characterized in that: The first fastener and the second fastener are both shaft-type structures, and their axial directions are consistent with the radial direction of the fixing frame, and can be tightly fixed to the sealing gland or the sealing plug through the axial ends.

3. The seal disassembly and assembly tool for a throttle valve according to claim 2, characterized in that: The first part and the second part are both uniformly provided with a plurality of radially penetrating first threaded holes along the circumferential direction, and the first fastener and the second fastener are bolts matching the first threaded holes.

4. The seal disassembly and assembly tool for a throttle valve according to claim 2, characterized in that: The first fastener and the second fastener both include a main shaft and a secondary shaft connected to each other, and the main shaft cooperates with the secondary shaft to adjust the length of the first fastener or the second fastener.

5. The seal disassembly and assembly tool for a throttle valve according to claim 4, characterized in that: The main shaft is telescopically connected to the secondary shaft, one end of the main shaft connected to the secondary shaft is provided with a second threaded hole extending along its axial direction, and the outer surface of the secondary shaft is provided with an external thread matching the second threaded hole.

6. The seal disassembly and assembly tool for a throttle valve according to claim 4, characterized in that: The main shaft is foldably connected to the secondary shaft, the main shaft is hinged to the secondary shaft, and the secondary shaft can be turned over to be parallel to the main shaft.

7. The seal disassembly and assembly tool for a throttle valve according to claim 1, characterized in that: The handle is a rod-shaped structure and two handles are respectively provided along the radial outer side of the fixing frame.

8. The seal disassembly and assembly tool for a throttle valve according to claim 7, characterized in that: The fixing frame is provided with a third threaded hole arranged along its radial direction, and the end of the handle is provided with an external thread matching the third threaded hole.

9. The seal disassembly and assembly tool for a throttle valve according to claim 7, characterized in that: The handle is a telescopic rod, and its length can be adjusted along its axial direction.

10. The seal disassembly and assembly tool for a throttle valve according to claim 7, characterized in that: An end of the handle away from the fixing frame is sleeved with an anti-slip sleeve.

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