A leak stoppage device for petrochemical valves

Abstract

The application discloses a leak-stopping device for petrochemical valves, which comprises a valve and further comprises a glue injection hole, a glue gun, a glue cylinder, a push rod and a driving structure. The glue injection hole is arranged on the valve. The glue cylinder is arranged on the glue gun and at least partially extends into the glue injection hole. The push rod is movably arranged on the glue gun and partially extends into the interior of the glue cylinder to extrude the glue in the glue cylinder. The driving structure is arranged on the glue gun. In the process of removing the old device valve, the relevant valve is closed and the glue injection hole is drilled on the relevant valve. The driving structure outputs power to drive the push rod to move, and the glue in the glue cylinder is pressed out into the valve. The glue flows and fills the valve cavity and blocks the micro gap between the valve core and the valve seat, thereby achieving the purpose of plugging the valve. Since the glue can flow adaptively in the valve cavity, the glue can fill the micro gap between the valve core and the valve seat, and a better plugging effect is obtained.

Description

Technical Field

[0001] This application relates to the field of valve leak-stopping technology, and in particular to a leak-stopping device for petrochemical valves. Background Technology

[0002] In the petrochemical industry, aging equipment needs to be completely dismantled when it reaches the end of its service life, becomes technologically obsolete, fails to comply with new regulations, or is economically unviable. In large petrochemical enterprises, the dismantling of aging equipment is often carried out while other related equipment is still in operation. Sealing operations are a crucial means of ensuring the physical isolation of the equipment / pipeline section to be dismantled from the operating system, preventing the accidental entry of materials into the dismantling area or the dismantling operation from affecting the operating equipment.

[0003] Valves in older equipment often suffer from problems such as valve seat wear, valve core corrosion, and seal failure. Even when the valve is closed, there may be significant internal leakage.

[0004] In related technologies, traditional internal sealing techniques such as bladders or mechanical plugs are often used to seal valves in old devices. However, the mechanical, material, and labor costs required for traditional internal valve sealing techniques such as bladders or mechanical plugs are usually high, and the operation procedures are relatively complex.

[0005] Therefore, it is necessary to propose a leak-stopping device for petrochemical valves to reduce the cost of sealing, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0006] This application provides a leak-stopping device for petrochemical valves, aiming to solve the problems that the mechanical, material, and labor costs required for traditional internal valve sealing technologies such as bladder-type or mechanical plugs are usually high, and the operation procedures are relatively complex.

[0007] To achieve the above objectives, this application proposes a leak-stopping device for petrochemical valves, including a valve, and further comprising: an injection port, the injection port being opened in the valve; a glue gun; a glue cartridge, the glue cartridge being placed on the glue gun, with at least a portion of the glue cartridge extending into the injection port; a push rod, the push rod being movably disposed on the glue gun, with a portion of the push rod extending into the interior of the glue cartridge to squeeze the glue inside the glue cartridge; and a drive structure, the drive structure being disposed on the glue gun.

[0008] In some embodiments, the device further includes a cone, which is disposed at the end of the glue tube and has a glue injection channel inside the cone.

[0009] In some embodiments, the device further includes: a mounting portion disposed on the glue gun; and a rubber component disposed on the mounting portion.

[0010] In some embodiments, the device further includes an enlarged portion, wherein the end of the injection hole is provided with an enlarged portion.

[0011] In some embodiments, it further includes a shielding portion, wherein the end of the cone is provided with a shielding portion.

[0012] In some embodiments, the push rod further includes: a rack, wherein the push rod is provided with a rack; and a drive gear, wherein the drive gear is connected to a drive structure and meshes with the rack.

[0013] This application proposes a leak-stopping device for petrochemical valves, including a valve, and further comprising: an injection port, which is located on the valve; a glue gun; a glue cartridge, which is placed on the glue gun and at least partially extends into the injection port; a push rod, which is movably mounted on the glue gun and partially extends into the glue cartridge to compress the glue inside; and a drive structure, which is mounted on the glue gun. During the removal of valves from aging equipment, the relevant valves are closed, and injection ports are drilled on them. The drive structure outputs power to move the push rod, forcing the glue from the cartridge into the valve. The glue flows and fills the valve cavity, blocking the micro-gaps in the valve core and seat, thereby achieving the purpose of sealing the valve. Because the glue can flow adaptively within the valve cavity, it can fill the micro-gaps in the valve core and seat, achieving a better sealing effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of a leak-stopping device for petrochemical valves according to one embodiment of this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a cross-sectional view of a leak-stopping device for petrochemical valves according to an embodiment of this application; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; Figure 5 for Figure 3 A magnified view of a section at point C.

[0015] In the diagram: Valve 1, glue gun 2, slider 21, push rod 3, slide groove 31, glue tube 4, trigger 5, mounting part 6, rubber part 7, cone cylinder 8, hole enlarging part 9, glue injection channel 10, shielding part 11, glue injection hole 12, second transmission gear 13, second transmission shaft 14, first transmission gear 15, first transmission shaft 16, drive gear shaft 17, drive gear 18. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] See Figure 1 , Figure 3 and Figure 4 As shown, this application proposes a leak-stopping device for petrochemical valves, including a valve 1, and further including: an injection port 12, the injection port 12 being opened in the valve 1; a glue gun 2; a glue cartridge 4, the glue cartridge 4 being placed on the glue gun 2, the glue cartridge 4 at least partially extending into the injection port 12; a push rod 3, the push rod 3 being movably disposed on the glue gun 2, the push rod 3 partially extending into the interior of the glue cartridge 4 to squeeze the glue inside the glue cartridge 4; and a drive structure, the drive structure being disposed on the glue gun 2.

[0018] The glue injection hole 12 is drilled into the valve 1, which is preferably a gate valve. The glue gun 2 is the main structure of the leak-stopping device, and other structures on the leak-stopping device are directly or indirectly mounted on the glue gun 2.

[0019] The adhesive cartridge 4 is placed on the glue gun 2. The cartridge 4 contains a general-purpose adhesive, preferably a high-performance, oil-resistant epoxy resin. A push plug is provided at the end of the push rod 3. The push plug fits the inner wall of the cartridge 4. When the push rod 3 moves into the cartridge 4, the push plug forces the adhesive from the cartridge 4 into the valve 1. The adhesive flows and fills the cavity of the valve 1, blocking the micro-gaps in the valve core and valve seat, thereby sealing the valve 1. The drive structure is the power structure for the push rod 3. The drive structure outputs power to move the push rod 3, realizing the adhesive injection action of the valve 1.

[0020] Specifically, during the removal of valve 1 from the old device, the relevant valve 1 is closed, and an injection hole 12 is drilled in the relevant valve 1. The drive structure outputs power to move the push rod 3, forcing the adhesive in the adhesive cartridge 4 into the valve 1. The adhesive flows and fills the cavity of valve 1, blocking the micro-gap in the valve core and valve seat, thereby achieving the purpose of sealing valve 1. Because the adhesive can flow adaptively within the valve cavity, it can fill the micro-gap in the valve core and valve seat, achieving a better sealing effect.

[0021] The glue injection sealing process involves drilling, connecting the glue gun 2, and injecting glue. Traditional bladder / mechanical plug sealing requires precise measurement of the valve cavity dimensions, custom-made metal plugs, hydraulic expansion, and multi-stage locking. The glue injection sealing process eliminates the need for custom processing, removing the risk of failure due to measurement errors, and is simpler to implement. The glue flows adaptively within the valve cavity of valve 1, filling micro-gaps, allowing the glue injection sealing process to tolerate valve cavity deformation / corrosion defects and solving the problem of dimensional inaccuracies in older valves. Furthermore, the glue gun 2 required for the glue injection sealing process is lightweight and easy to use.

[0022] Understandably, the glue injection sealing process only requires the use of general-purpose glue, with the glue cost for a single valve 1 being around 3,000 yuan, while the cost of a custom metal plug required for traditional bladder / mechanical plug sealing is around 50,000 yuan per unit. Furthermore, traditional bladder / mechanical plug sealing requires large hoisting equipment and a hydraulic station, while the glue injection sealing process only requires a glue gun 2 and drilling equipment, resulting in lower equipment costs compared to traditional bladder / mechanical plug sealing technology. Moreover, the success rate of the glue injection sealing process is around 98%, while the success rate of traditional bladder / mechanical plug sealing is around 85%. The rework costs required for traditional bladder / mechanical plug sealing technology are also significantly higher than the sealing technology provided in this application.

[0023] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes a cone 8, which is disposed at the end of the glue tube 4, and has a glue injection channel 10 inside the cone 8. The cone 8 makes it easier to insert the end of the cone 8 into the glue injection hole 12, reducing the difficulty of implementing the glue injection process.

[0024] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes: a mounting part 6, which is disposed on the glue gun 2; the mounting part 6 is integrally formed with the glue gun 2, and a rubber part 7, which is disposed on the mounting part 6. The rubber part 7 is bonded to the mounting part 6 and is used to seal the glue injection hole 12 on the valve 1 to prevent leakage of glue or petrochemicals and improve the reliability of the glue injection sealing process.

[0025] See Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, it further includes an enlarged orifice 9, which is provided at the end of the injection hole 12. The orifice diameter of the injection channel 10 gradually decreases along the axial extension direction, resulting in a small orifice diameter of the injection channel 10 nozzle, which limits the spray angle. The injected adhesive is prone to accumulation, seriously affecting the subsequent injection of adhesive, making it difficult for the adhesive to effectively fill the valve cavity of the valve 1. The enlarged orifice 9 can increase the spray angle of the adhesive, allowing the adhesive to fill the valve cavity of the valve 1 better and faster, forming an effective seal.

[0026] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes a shielding part 11. The shielding part 11 is provided at the end of the cone 8. The shielding part 11 is used to prevent the colloid from being sprayed upwards, so that the injected colloid can fill the micro gaps in the valve core and valve seat more quickly. The shielding part 11 is integrally formed with the cone 8.

[0027] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, it further includes: a rack, with a rack mounted on the push rod 3, the rack being integrally formed with the push rod 3; a drive gear 18, the drive gear 18 being connected to the drive structure, and the drive gear 18 meshing with the rack. A rotatable trigger 5 is mounted on the glue gun 2, the trigger 5 being connected to a potentiometer. The glue gun 2 also contains a drive motor and a PLC control unit. When the trigger 5 is in its natural state, the potentiometer is not triggered, and the voltage is at the intermediate value. At this time, the PLC control unit controls the drive motor to be in the off state. When the trigger 5 is pulled backward, the potentiometer resistance changes, and the voltage is higher than the intermediate value. The PLC control unit reads this voltage increase and controls the drive motor to rotate forward; the higher the voltage, the faster the rotation speed. Pushing the trigger 5 forward, the output voltage is lower than the intermediate value. The PLC control unit reads the voltage decrease and controls the drive motor to rotate in reverse; the lower the voltage, the faster the reverse rotation speed. The output shaft of the drive motor is connected to a drive gear shaft 17 via a coupling. The drive gear shaft 17 is rotatably mounted inside the glue gun 2, and the drive gear 18 is welded to the drive gear shaft 17. Drive gear 18 rotates forward or backward to drive push rod 3 forward or backward.

[0028] In this embodiment, a first drive shaft 16 and a second drive shaft 14 are rotatably disposed inside the glue gun 2. A first drive gear 15 is welded on the first drive shaft 16, and a second drive gear 13 is welded on the second drive shaft 14. The first drive gear 15 meshes with the drive gear 18, the second drive gear 13 meshes with the first drive gear 15, and the second drive gear 13 meshes with the rack to achieve indirect meshing between the drive gear 18 and the rack.

[0029] The glue gun 2 is equipped with a slider 21, and the push rod 3 is equipped with a groove 31 that matches the slider 21. The stability of the push rod 3 movement is improved by the cooperation between the slider 21 and the groove 31.

[0030] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A leak-stopping device for petrochemical valves, comprising a valve (1), characterized in that, Also includes: The glue injection hole (12) is located in the valve (1). glue gun (2); A glue cartridge (4) is placed on the glue gun (2), and the glue cartridge (4) extends at least partially into the glue injection hole (12); Push rod (3), which is movably disposed on the glue gun (2), and the push rod (3) extends into the inside of the glue cylinder (4) to squeeze the glue inside the glue cylinder (4); A drive structure is disposed on the glue gun (2).

2. The leak-stopping device for petrochemical valves according to claim 1, characterized in that, Also includes: A cone (8) is provided at the end of the glue tube (4), and a glue injection channel (10) is provided inside the cone (8).

3. The leak-stopping device for petrochemical valves according to claim 1, characterized in that, Also includes: Mounting part (6), which is disposed on the glue gun (2); A rubber component (7) is disposed on the mounting portion (6).

4. A leak-stopping device for petrochemical valves according to claim 2, characterized in that, Also includes: Enlarged hole section (9) is provided at the end of the glue injection hole (12).

5. A leak-stopping device for petrochemical valves according to claim 2, characterized in that, Also includes: The shielding part (11) is provided at the end of the cone (8).

6. A leak-stopping device for petrochemical valves according to claim 1, characterized in that, Also includes: A rack is provided on the push rod (3); A drive gear (18) is connected to the drive structure and meshes with the rack.

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