Pressure-resistant volume-limiting flexible plugging device for tank box valve

Abstract

The utility model provides a pressure-resistant volume-limiting flexible plugging device for a tank box valve. The pressure-resistant volume-limiting flexible plugging device comprises a flexible cylindrical body, necking parts are arranged at the two ends of the body respectively, elastic ports are formed in the tail ends of the necking parts, a glue injection opening is formed in at least one necking part, and a glue injection assembly is installed in the glue injection opening; the glue injection assembly comprises a mounting seat, a glue injection one-way valve is arranged in an inner cavity of the mounting seat, the mounting seat comprises an inner seat body and an outer seat body, an annular sealing brim inclined towards the inner wall of the body is arranged on the outer edge of the inner seat body, and an outer brim is arranged on the portion, exposed out of the body, of the outer seat body. The main body structure of the flexible plugging device provided by the utility model adopts the reinforced framework, the outer protection layer is vulcanized on the outer side of the reinforced framework, the vulcanized outer protection layer is utilized to improve the sealing strength, the characteristics of internal heat insulation and fire prevention and external wear resistance and oil prevention can be realized, and a formed product has relatively good flexibility and good sealing performance. The main body structure can be adaptively deformed according to the appearance of the contained part, the flexibility is high, and the use and the operation are convenient.

Description

Technical Field

[0001] The invention belongs to the field of storage and transportation of hazardous chemicals, and in particular relates to a pressure-resistant and capacity-limited flexible sealing device for tank valves. Background Art

[0002] During the storage and transportation of hazardous chemical tank trucks, hazardous chemical tank boxes and other devices, there are situations where valves are accidentally hit and damaged and leak. Hazardous chemical pipeline leakage is a very dangerous accident. Once it occurs, it will cause great harm to the surrounding environment and personnel. Therefore, in the face of this situation, it is crucial to plug the leak in a timely and effective manner. In the prior art, the plugging technology for hazardous chemical pipeline leakage usually includes plugging or prevarication. Among them, the plugging method is a relatively simple and effective plugging technology. When a leak occurs, various plastic materials such as tape, gantry bags and other materials can be used to directly plug the leak to prevent further leakage of hazardous chemicals. This method is simple to operate, but it is only suitable for situations where the leak is relatively small, and it may affect subsequent pipeline maintenance work; while the prevarication method is a method of preventing hazardous chemicals from continuing to leak by plugging the leak. Generally, plugging materials such as sand and clay are used to fill the leak, and cement slurry, gypsum and the like can also be used for prevarication. This method is simple to operate, but it is necessary to master the type and speed of the filler, otherwise it may cause a secondary accident. The above leakage plugging methods all have certain drawbacks. Since they are all carried out after an accident occurs, the operation is difficult, especially for irregular or special-shaped valves in a narrow space, the leakage plugging efficiency and success rate cannot be effectively guaranteed. Therefore, it is necessary to study and design a device that can be quickly deployed in a narrow space and can quickly deal with leaking complex structure valves. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a pressure-resistant and capacity-limited flexible sealing device for a tank valve.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A pressure-resistant and capacity-limited flexible sealing device for a tank valve comprises a flexible cylindrical body, wherein both ends of the body are provided with a constricted portion, and elastic ports are provided at the ends of the constricted portions, wherein at least one of the constricted portions is provided with a glue injection port, and a glue injection component is installed in the glue injection port; the glue injection component comprises a mounting seat, and a glue injection one-way valve is provided in the inner cavity of the mounting seat, the mounting seat comprises an inner seat body and an outer seat body installed on the inner seat body, an annular sealing eave inclined toward the inner wall of the body is provided on the outer edge of the inner seat body, and an outer eave is provided on the portion of the outer seat body exposed from the body.

[0006] Furthermore, the end of the sealing eaves adopts an arc structure.

[0007] Furthermore, the outer seat body is provided with a connecting portion on the side facing the inner seat body, the inner cavity of the connecting portion is connected with the one-way valve installation cavity of the inner seat body, and an external thread structure is provided on the outer wall of the connecting portion, the inner seat body is provided with a glue hole, and an internal thread structure matching the external thread structure of the connecting portion is provided at one end of the glue hole facing the outer seat body.

[0008] Furthermore, the outer seat body is vulcanized and formed on the outer side of the glue injection one-way valve.

[0009] Furthermore, the main body is woven from flexible fibers and metal wires to form a reinforcement skeleton, and an outer protective layer is vulcanized and formed both inside and outside the reinforcement skeleton.

[0010] Furthermore, the outer protective layer is vulcanized from nitrile rubber or chlorosulfonated polyethylene rubber.

[0011] Furthermore, the flexible fiber adopts aramid fiber.

[0012] Furthermore, the outer seat body and the inner seat body are both made of metal material, and the sealing eaves are made of rubber material.

[0013] Furthermore, the sealing eaves are fixed to the inner seat body by gluing or vulcanization molding on the inner seat body.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The main structure of the flexible sealing device provided by the present invention adopts a reinforced skeleton, and an outer protective layer is vulcanized on the outside of the reinforced skeleton. The vulcanized outer protective layer is used to improve the sealing strength, thereby achieving the characteristics of internal heat insulation and fire prevention, and external wear resistance and oil resistance. The product has good flexibility after molding, and the main structure can adaptively deform according to the shape of the contained components. When used, the elastic port on one side is used to lock with the outer surface of the obstacle using a throat clamp, and the elastic port on the other side is directly locked with a throat clamp, thereby constructing a closed and pressure-resistant containing space inside the main body. It has high flexibility and is easy to use and operate, and can meet the needs of rapid emergency sealing of valve leakage in a narrow space with a complex structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure created by the present invention;

[0018] Figure 2 Create a partial cross-sectional view for the present invention;

[0019] Figure 3 It is a schematic diagram of the glue injection component part of the invention;

[0020] Figure 4 This is a schematic diagram of an embodiment of the present invention when an asbestos layer is provided;

[0021] Figure 5 This is a schematic diagram of the invention in which an asbestos layer and an inner lining layer are provided on the main body;

[0022] Figure 6 This is a schematic diagram of the present invention when installing and applying. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A tank valve pressure-resistant and limited capacity flexible plugging device, such as Figures 1 to 6As shown, it includes a flexible cylindrical body 1, with necking parts 2 at both ends of the body, and elastic ports 3 at the ends of the necking parts, a glue injection port is provided at at least one necking part, and a glue injection component 4 is installed in the glue injection port; the glue injection component includes a mounting seat 5, a glue injection one-way valve is provided in the inner cavity of the mounting seat, the mounting seat includes an inner seat body 6 and an outer seat body 7 installed on the inner seat body, an annular sealing eaves 8 inclined toward the inner wall of the body is provided on the outer edge of the inner seat body, the end of the sealing eaves adopts an arc structure, the outer seat body and the inner seat body are both made of metal material, and the sealing eaves are made of rubber material.

[0028] Specifically, the sealing eaves are glued and fixed to the inner seat body or vulcanized on the inner seat body. The sealing eaves can be effectively fitted with the inner wall of the main body, and can effectively prevent glue leakage between the mounting seat and the injection port during glue injection. The portion of the outer seat body exposed outside the main body is provided with an outer eaves 9 to prevent the glue injection assembly from falling off from the injection port. As an example, the outer seat body is vulcanized on the outside of the glue injection one-way valve. Under normal conditions, the elastic ports on both sides of the main body are in an open state, and the two ports have a contraction elastic function. When used, the elastic port on one side is used to lock with the outer surface of the pipeline or connecting structure at the rear end of the valve body using a throat clamp 10, while the elastic port on the other side is directly locked with a throat clamp, thereby constructing a closed and pressure-resistant containment space inside the main body, which can be suitable for sealing valves with complex structures in narrow spaces.

[0029] In an optional embodiment, a one-way valve installation cavity is provided in the middle of the inner seat body, and a connecting portion 11 is provided on the side of the outer seat body facing the inner seat body, the inner cavity of the connecting portion is communicated with the one-way valve installation cavity of the inner seat body, and an external thread structure is provided on the outer wall of the connecting portion, and a glue hole 12 is provided on the inner seat body, and an internal thread structure matching the external thread structure of the connecting portion is provided at one end of the glue hole facing the outer seat body. When injecting glue, the glue gun head is directly inserted into the outer seat body, and the glue extruded from the glue gun will enter the containing space through the glue injection one-way valve, and then tightly wrap the valve 15.

[0030] The body is woven from flexible fibers and metal wires to form a reinforced skeleton, and an outer protective layer is vulcanized inside and outside the reinforced skeleton. The body is made of a woven fabric of a heat-resistant and flame-retardant high-strength fiber substrate, and a non-leaking body that is resistant to a certain pressure is formed through a vulcanization process. For example, the outer protective layer is vulcanized with nitrile rubber or chlorosulfonated polyethylene rubber. During processing and production, the fiber material and metal wire in the reinforced skeleton are laid in a manner similar to that of a radial tire. By combining the reinforced skeleton and rubber, the characteristics of internal heat insulation and fire prevention, external wear resistance and oil resistance can be achieved according to the requirements of design strength and flexibility. The flexible fiber is aramid fiber, which has low density, high strength, good toughness, high temperature resistance, easy processing and molding, and its strength is 5 times that of steel, with a special ability of being invulnerable to swords and guns. It is called "armored guard". It is often used in the fields of protection, composite materials, optical cable reinforcement cores, automotive hoses, tires, conveyor belts, etc.

[0031] In another optional embodiment, the main body includes a fiber cloth skeleton and outer protective layers on both sides of the fiber cloth skeleton. The outer protective layer is chlorosulfonated polyethylene rubber. The rubber has excellent acid, alkali, oil and chemical resistance, and can be applied to vehicles that transport a variety of materials; the material also has excellent weather resistance and ozone resistance, and can meet long-term outdoor use; the material has good flame retardant properties, and will extinguish immediately when away from fire; and excellent wear resistance. The fiber cloth skeleton adopts alkali-resistant glass fiber (AR glass fiber) cloth. This material has good acid and alkali resistance, and has high strength, and can withstand high pressure loads, so the product has good flexibility after molding.

[0032] After the valve is filled and unloaded, the elastic port on one side of the flexible sealing device is clamped and locked, and the other side is mounted on the outside of the valve, so that the valve is in a protected state. Once a leak occurs, a glue gun can be used to inject glue into the internal containment space of the body. The injected colloid will be bonded to the contained valve to block the leak. This device is a disposable product. After the hidden dangers are eliminated and the conditions for backflow or unloading are met, the body is destructively dismantled, and the leak-stopping colloid on the contained valve is peeled off to resume the use of the valve. It should be noted that during installation and application, a solid sealing column is inserted into the elastic port at the free end. When the elastic port is locked by the throat clamp on this side, the inner wall of the elastic port can be pressed against the outer wall of the sealing column to ensure good sealing. As an example, the sealing column is made of rubber rods and nylon rods.

[0033] In an optional embodiment, the inner wall of the main body is further provided with an inner lining layer 13, and an asbestos layer 14 is provided between the inner lining layer and the main body. For example, the inner lining layer can be made of rubber material. Such a structural design does not affect the flexibility of the sealing device, but further enhances the high temperature resistance of the sealing device. At the same time, the ability to resist bumps and impacts is stronger, thereby improving the performance of the flexible sealing device.

[0034] The main structure of the flexible sealing device provided by the present invention adopts a reinforced skeleton, and an outer protective layer is vulcanized on the outside of the reinforced skeleton. The vulcanized outer protective layer is used to improve the sealing strength, and the internal heat insulation and fire prevention, external wear resistance and oil resistance can be achieved. The product has good flexibility after molding, and the main structure can adaptively deform according to the shape of the contained components. When used, the elastic port on one side is used to lock with the outer surface of the obstacle using a throat clamp, while the elastic port on the other side is directly locked with a throat clamp, thereby constructing a closed and pressure-resistant containing space inside the main body. It has high flexibility and is easy to use and operate, and can meet the needs of rapid emergency sealing of valve leakage in a narrow space with a complex structure.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-resistant and capacity-limited flexible plugging device for tank valves, characterized in that: It comprises a flexible cylindrical body, with constricted portions at both ends of the body respectively, elastic ports at the ends of the constricted portions, a glue injection port being provided at at least one of the constricted portions, and a glue injection assembly being installed in the glue injection port; the glue injection assembly comprises a mounting seat, and a glue injection one-way valve is provided in the inner cavity of the mounting seat; the mounting seat comprises an inner seat body and an outer seat body installed on the inner seat body, an annular sealing eave inclined toward the inner wall of the body is provided on the outer edge of the inner seat body, and an outer eave is provided on the portion of the outer seat body exposed from the body.

2. A tank valve pressure-resistant and limited-capacity flexible plugging device according to claim 1, characterized in that: The end of the sealing eaves adopts an arc structure.

3. The pressure-resistant and capacity-limited flexible sealing device for tank valves according to claim 1 is characterized by: The outer seat body is provided with a connecting part on the side facing the inner seat body, the inner cavity of the connecting part is connected with the one-way valve installation cavity of the inner seat body, and an external thread structure is provided on the outer wall of the connecting part. The inner seat body is provided with a glue hole, and an internal thread structure matching the external thread structure of the connecting part is provided at one end of the glue hole facing the outer seat body.

4. The pressure-resistant and capacity-limited flexible sealing device for tank valves according to claim 1 is characterized by: The outer seat body is vulcanized and formed on the outer side of the glue injection one-way valve.

5. The tank valve pressure-resistant and capacity-limited flexible plugging device according to claim 1 is characterized by: The main body is woven from flexible fibers and metal wires to form a reinforcement frame, and an outer protective layer is vulcanized and formed inside and outside the reinforcement frame.

6. The pressure-resistant and capacity-limited flexible plugging device for tank valves according to claim 5, characterized in that: The outer protective layer is made of vulcanized nitrile rubber or chlorosulfonated polyethylene rubber.

7. The tank valve pressure-resistant and capacity-limited flexible plugging device according to claim 5, characterized in that: The flexible fiber is made of aramid fiber.

8. The tank valve pressure-resistant and capacity-limited flexible plugging device according to claim 1, characterized in that: The outer seat body and the inner seat body are both made of metal material, and the sealing eaves are made of rubber material.

9. The tank valve pressure-resistant and capacity-limited flexible plugging device according to claim 8, characterized in that: The sealing eaves are fixed to the inner seat body by gluing or vulcanized.

Images