On-line packing installation device

Abstract

The utility model relates to an on-line packing installation device, which belongs to the technical field of valve sealing, and comprises a first clamping piece and a second clamping piece which are symmetrically arranged, and the first clamping piece and the second clamping piece are semicircular. And when the first clamping piece and the second clamping piece are buckled, a cylindrical space for clamping the packing and the packing gland is formed. According to the on-line packing installation device, the first clamping piece and the second clamping piece are buckled to form the cylindrical space, when the on-line packing installation device is used, one part of a packing gland and packing are wrapped with the cylindrical space, the packing can be accurately pushed into a sealing cavity, and the installation time is greatly shortened; and before the packing gland is pushed, the packing device and the packing can be mounted on line at the position far away from the sealing cavity of the valve body, so that gas can be effectively prevented from being sprayed out, and the safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve sealing, and particularly relates to an on-line packing installation device. Background Art

[0002] As a key sealing element of a valve, the sealing performance of the packing directly affects the reliability and safety of the valve. Especially for the wedge double-gate plate type gate valve, the working environment is harsh and the action frequency is high, which makes the packing wear out quickly and requires frequent replacement of the packing. However, due to the presence of high-temperature gas and a certain pressure inside the valve, when installing the packing online, the gas will eject under the action of the high-temperature gas, resulting in the inability to smoothly push the packing into the sealing cavity; moreover, the operation of replacing the packing usually requires completion within a very short time, generally not exceeding 9 minutes, which further increases the operation difficulty.

[0003] Therefore, how to solve the problem of difficult on-line packing installation at present is a technical problem that urgently needs to be solved. Summary of the Utility Model

[0004] In view of the deficiencies in the prior art, the utility model provides an on-line packing installation device. By buckling a first clamping member and a second clamping member to form a cylindrical space, when in use, the cylindrical space is used to wrap a part of the packing gland and the packing, and the packing can be accurately pushed into the sealing cavity, greatly shortening the installation time.

[0005] The utility model provides an on-line packing installation device, which includes symmetrically arranged first clamping member and second clamping member. The first clamping member and the second clamping member are semi-circular. When the first clamping member and the second clamping member are buckled, a cylindrical space for clamping the packing and the packing gland is formed.

[0006] In this technical solution, a cylindrical space is formed by buckling the first clamping member and the second clamping member. When in use, the cylindrical space is used to wrap a part of the packing gland and the packing, and the packing can be accurately pushed into the sealing cavity, greatly shortening the installation time.

[0007] In some embodiments, the inner diameters of the first clamping member and the second clamping member are equal to the diameter of the sealing cavity of the valve body, and the outer diameters of the first clamping member and the second clamping member are greater than the diameter of the sealing cavity of the valve body. This technical solution can ensure that the first clamping member and the second clamping member will not be pushed into the sealing cavity, and at the same time ensure that the packing can be closely attached to the sealing cavity.

[0008] In some embodiments, one end where the first clamping member and the second clamping member are connected is hinged. This technical solution can make the first clamping member and the second clamping member open and close flexibly, improving the convenience and efficiency of the operation.

[0009] In some of these embodiments, a pin shaft is provided at the hinge joint of the first clamping member and the second clamping member. This technical solution can ensure that the first clamping member and the second clamping member will not become loose or fall off during use.

[0010] In some of these embodiments, the other end where the first clamping member is connected to the second clamping member may be open, and a locking member for locking is provided at the open end where the first clamping member is connected to the second clamping member. This technical solution can enable the first clamping member and the second clamping member to be quickly opened and locked, simplify the operation steps, and improve the installation efficiency.

[0011] In some of these embodiments, the locking member includes a clamping portion and a buckle that matches the clamping portion. The clamping portion is installed on one of the first clamping member or the second clamping member, and the buckle is installed on the other of the first clamping member or the second clamping member. Through the setting of the clamping portion and the buckle, this technical solution ensures that the first clamping member or the second clamping member can be firmly locked, prevents loosening under high-pressure environments, and enhances the sealing effect.

[0012] In some of these embodiments, the buckle is provided with a rotating buckle. When the rotating buckle is clamped on the clamping portion, the first clamping member and the second clamping member are in a locked state. Through the setting of the rotating buckle, this technical solution provides a convenient locking and releasing mechanism, further improving the safety and efficiency of the operation.

[0013] Based on the above solutions, in the on-line packing installation device in the embodiments of the present utility model, a cylindrical space is formed by buckling the first clamping member and the second clamping member. During use, the cylindrical space is used to wrap a part of the packing gland and the packing, and the packing can be accurately pushed into the sealing cavity, greatly shortening the installation time; and before pushing the packing gland, the on-line packing installation device and the packing can be assembled at a position far from the valve body sealing cavity, which can effectively prevent gas from spraying out and ensure the safety of the operating personnel. In summary, the on-line packing installation device provided in this embodiment can be applied to the harsh working environment of a wedge double-gate plate type gate valve and can maintain stable sealing performance during high-frequency operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 It is a schematic structural diagram of the on-line packing installation device in the embodiments of the present utility model in a locked state;

[0016] Figure 2 It is a schematic structural diagram of the on-line packing installation device in the embodiments of the present utility model in an open state;

[0017] Figure 3 The top view of the on-line packing installation device in the embodiment of the utility model;

[0018] Figure 4 The structural schematic diagram of the on-line packing installation device when installing packing in the embodiment of the utility model.

[0019] In the figure:

[0020] 1. First clamping member; 2. Second clamping member; 3. Locking member; 4. Rotating shaft; 5. Packing; 6. Packing gland; 7. Valve stem; 8. Valve body. Specific embodiments

[0021] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 1-4 shown, in an embodiment of the on-line packing installation device of the present utility model, the on-line packing installation device includes a symmetrically arranged first clamping member 1 and a second clamping member 2. The first clamping member 1 and the second clamping member 2 are semicircular. When the first clamping member 1 and the second clamping member 2 are buckled, a cylindrical space for clamping the packing 5 and the packing gland 6 is formed.

[0025] In the above-described exemplary embodiment, the on-line packing device forms a cylindrical space by clamping together the first clamping member 1 and the second clamping member 2. During use, the cylindrical space is used to wrap a part of the packing gland 6 and the packing 5, enabling the packing 5 to be accurately pushed into the sealing cavity, which greatly shortens the installation time. Moreover, before pushing the packing gland 6, the assembly of the on-line packing device and the packing 5 can be carried out at a position far from the sealing cavity of the valve body 8, effectively preventing gas from spraying out and ensuring the safety of the operator. In summary, the on-line packing device provided in this embodiment can be applied to the harsh working environment of the wedge double-gate plate type gate valve and can maintain stable sealing performance during high-frequency operations.

[0026] In some embodiments, as Figure 4 shown, the inner diameters of the first clamping member 1 and the second clamping member 2 are equal to the diameter of the sealing cavity of the valve body 8, and the outer diameters of the first clamping member 1 and the second clamping member 2 are greater than the diameter of the sealing cavity of the valve body 8. By defining the inner and outer diameters of the first clamping member 1 and the second clamping member 2, it is ensured that the first clamping member 1 and the second clamping member 2 will not be pushed into the sealing cavity, and at the same time, it is ensured that the packing 5 can closely fit the sealing cavity, providing stable support and sealing effect to prevent gas leakage.

[0027] Further, as Figure 3 shown, one end where the first clamping member 1 and the second clamping member 2 are connected is hinged. By the hinging of the first clamping member 1 and the second clamping member 2, the first clamping member 1 and the second clamping member 2 can be flexibly opened and closed, improving the convenience and efficiency of the operation.

[0028] In some embodiments, as Figure 3 shown, a pin shaft is provided at the hinged part of the first clamping member 1 and the second clamping member 2. By the setting of the pin shaft, the stability of the hinged part is enhanced, ensuring that the first clamping member and the second clamping member 2 will not loosen or fall off during use.

[0029] In some embodiments, as Figure 1 shown, the other end where the first clamping member 1 and the second clamping member 2 are connected can be open, and a locking member 3 for locking is provided at the open end where the first clamping member 1 and the second clamping member 2 are connected. By the setting of the locking member 3, the first clamping member 1 and the second clamping member 2 can be quickly opened and locked, simplifying the operation steps and improving the installation efficiency.

[0030] In some embodiments, as Figure 1 shown, the locking member 3 includes a clamping portion and a buckle that matches the clamping portion. The clamping portion is installed on one of the first clamping member 1 or the second clamping member 2, and the buckle is installed on the other of the first clamping member 1 or the second clamping member 2. By the setting of the clamping portion and the buckle, it is ensured that the first clamping member 1 or the second clamping member 2 can be firmly locked, preventing loosening under high-pressure environments and enhancing the sealing effect.

[0031] In some embodiments, as Figure 2 shown, the buckle is provided with a rotating buckle. When the rotating buckle is clamped on the engaging portion, the first clamping member 1 and the second clamping member 2 are in a locked state. When the rotating buckle is disengaged from the engaging portion, the first clamping member 1 and the second clamping member 2 are in an open state. Through the setting of the rotating buckle, a convenient locking and releasing mechanism is provided, further improving the safety and efficiency of the operation.

[0032] The working process of an embodiment of the on-line packing installation device of the present utility model will be described below with reference to the accompanying drawings:

[0033] (1) Hold the first clamping member 1 and the second clamping member 2, as Figure 1 shown, and rotate them around the rotating shaft 4 to open; to avoid being scalded by high-temperature gas, place the first clamping member 1 and the second clamping member 2 at a position on the valve stem 7 far from the sealing cavity of the valve body 8. After the first clamping member 1 and the second clamping member 2 wrap a part of the packing gland 6 and the valve stem 7, as Figure 2 shown, rotate and engage the first clamping member 1 and the second clamping member 2, and lock the locking member 3.

[0034] In the above steps, to ensure that the packing 5 is tightly pressed, before the first clamping member 1 and the second clamping member 2 wrap the packing gland 6, a ring sleeved on the valve stem 7 is installed.

[0035] (2) Sleeve the packing 5 on the valve stem 7 one by one according to requirements, and use the first clamping member 1 and the second clamping member 2 to wrap the packing 5; push the packing gland 6 so that the packing gland 6, the on-line packing installation device, the ring, and the packing 5 slide synchronously along the valve stem 7 until the packing 5 and the ring are pushed into the sealing cavity of the valve body 8, fix the packing gland 6, open the locking member 3, and remove the on-line packing installation device to complete the on-line installation of the packing 5.

[0036] Through the description of multiple embodiments of the on-line packing installation device of the present utility model, it can be seen that the embodiments of the on-line packing installation device of the present utility model have at least one or more of the following advantages:

[0037] 1. The on-line packing installation device provided by the present utility model forms a cylindrical space by the engagement of the first clamping member 1 and the second clamping member 2. When in use, the cylindrical space is used to wrap a part of the packing gland 6 and the packing 5, and the packing 5 can be accurately pushed into the sealing cavity, greatly shortening the installation time;

[0038] 2. The on-line packing installation device provided by the present utility model can assemble the on-line packing installation device and the packing 5 at a position far from the sealing cavity of the valve body 8 before pushing the packing gland 6, which can effectively prevent gas from spraying out and ensure the safety of the operator;

[0039] 3. The on-line packing device provided by the utility model can be applicable to the harsh working environment of the wedge double-gate valve type gate valve and can maintain stable sealing performance during high-frequency operations.

[0040] Finally, it should be noted that the embodiments in this specification are described in a progressive manner, and the key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications can still be made to the specific implementation manners of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. An on-line packing installation device, characterized in that It includes a first clamping member and a second clamping member which are symmetrically arranged. The first clamping member and the second clamping member are semi-circular. When the first clamping member and the second clamping member are buckled, a cylindrical space for clamping packing and packing gland is formed.

2. The on-line packing installation device according to claim 1, characterized in that, The inner diameters of the first clamping member and the second clamping member are equal to the diameter of the sealing cavity of the valve body, and the outer diameters of the first clamping member and the second clamping member are larger than the diameter of the sealing cavity of the valve body.

3. The online packing installation device according to claim 1, wherein One end where the first clamping member and the second clamping member are connected is hinged.

4. The on-line packing installation device according to claim 3, characterized in that A pin shaft is provided at the hinge joint of the first clamping member and the second clamping member.

5. The online packing installation device according to claim 1, wherein, The other end where the first clamping member and the second clamping member are connected can be open, and a locking member for locking is provided at the open end where the first clamping member and the second clamping member are connected.

6. The on-line packing installation device according to claim 5, characterized in that, The locking member includes a clamping portion and a buckle that matches the clamping portion. The clamping portion is installed on one of the first clamping member or the second clamping member, and the buckle is installed on the other of the first clamping member or the second clamping member.

7. The on-line packing installation device according to claim 6, wherein The buckle is provided with a rotating buckle. When the rotating buckle is clamped in the clamping portion, the first clamping member and the second clamping member are in a locked state.

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