Novel safety valve with explosion-proof device

Abstract

The utility model relates to the technical field of safety valves, in particular to a novel safety valve with an explosion-proof device, and solves the problems that in the prior art, a device used in the current market is a safety valve and a residual liquid emptying valve which work together in a welding mode, but the occupied space after welding is large, and the safety valve is inconvenient to use. The welding part is exposed in the air for a long time, so that the welding part is easy to oxidize and fall off after a long time, the explosion-proof performance is poor, the safety coefficient is not high, and the appearance is extremely unattractive. A novel safety valve with an explosion-proof device comprises a valve body shell and a top shell, and the top shell is connected to the top of the valve body shell and communicated with the interior of the valve body shell. According to the utility model, through the skillfully designed structure of the air leakage hole and the movable column, the function of automatically opening pressure relief when the pressure of the equipment rises to a preset value is realized, and the internal pressure of the equipment is effectively prevented from continuously rising in danger. The design not only improves the safety of the equipment, but also enhances the stability of the system.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a novel safety valve with an explosion-proof device. Background Art

[0002] A safety valve is an overpressure protection device on a pressure-bearing equipment. When the equipment pressure rises to a predetermined value, the safety valve automatically opens to relieve pressure, preventing the equipment pressure from continuing to rise. When the pressure drops to the specified value, the safety valve automatically closes in time to prevent a large amount of the medium in the equipment from flowing out. The opening and closing part of the safety valve is in a normally closed state under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, the medium is discharged to the outside of the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value.

[0003] According to the safety regulations requirements of the pipeline, a safety valve must be installed on the pipeline to facilitate automatic pressure relief by discharging the medium flowing in the pipeline when the internal pressure of the pipeline is too high, so as to prevent the pipeline from exploding due to abnormal pressure increase.

[0004] At present, the device used in the market is a combination of a safety valve and a residual liquid drain valve, which are welded together to achieve the purpose of working together. However, after welding, it occupies a large space. The welded part is exposed to the air for a long time and is prone to oxidation and falling off over time. Its explosion-proof performance is poor, the safety factor is not high enough, and its appearance is extremely unattractive. Content of the Utility Model

[0005] The purpose of the utility model is to provide a novel safety valve with an explosion-proof device, which solves the problems in the prior art that the device used in the market is a combination of a safety valve and a residual liquid drain valve, which are welded together to achieve the purpose of working together. However, after welding, it occupies a large space. The welded part is exposed to the air for a long time and is prone to oxidation and falling off over time. Its explosion-proof performance is poor, the safety factor is not high enough, and its appearance is extremely unattractive.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A novel safety valve with an explosion-proof device includes a valve body housing and a top housing. The top housing is connected to the top of the valve body housing and is in communication with the inside of the valve body housing. Both sides of the top housing are provided with inclined surfaces. A plurality of air discharge holes are opened on one side of each inclined surface. A moving column is arranged inside each air discharge hole. One end of the moving column is provided with a plug, and the other end is connected to a limiting plate arranged inside the top housing. The diameter of the moving column is smaller than the diameter of the air discharge hole, and the diameters of the limiting plate and the plug are both larger than the diameter of the air discharge hole. An elastic pulling structure is arranged on one side of each limiting plate.

[0008] Preferably, the elastic pulling structure includes a connecting ring plate arranged on one side of the limiting plate. One side of the connecting ring plate is connected with a plurality of guide rods. One end of each guide rod passes through the limiting plate through a sliding sleeve and is connected with the inner wall of the top shell. The center of one side of the connecting ring plate is provided with an elastic member, and one end of the elastic member is connected with one side of the limiting plate.

[0009] Preferably, a central plate is arranged at the center of the connecting ring plate, and the outer ring of the central plate is connected with the inner wall of the connecting ring plate through a plurality of fixing rods.

[0010] Preferably, the elastic member is a compression spring. One end of the compression spring is elastically connected with one side of the central plate, and the other end is elastically connected with one side of the limiting plate.

[0011] Preferably, a sealing gasket is connected to the side of the plug close to the inclined surface, and the top of the top shell is set as an arc top.

[0012] Preferably, a plurality of positioning plates are connected to both sides of the top shell. The bottom of each positioning plate is provided with a fixing plate connected to the side wall of the valve body shell. The top of each positioning plate is provided with a positioning screw, and one end of the positioning screw passes through the positioning plate through a screw sleeve and is threadedly connected with the top of the adjacent fixing plate.

[0013] The utility model at least has the following beneficial effects:

[0014] First of all, through the ingeniously designed air vent and moving column structure, the function of automatically opening for pressure relief when the pressure of the equipment rises to a predetermined value is realized, effectively preventing the internal pressure of the equipment from rising dangerously continuously. This design not only improves the safety of the equipment, but also enhances the stability of the system. Secondly, the diameters of the limiting plate and the plug are designed to be larger than the air vent, ensuring that the safety valve can be automatically closed in time when the pressure drops after pressure relief, thereby preventing a large amount of loss of the medium in the equipment, greatly reducing resource waste and environmental pollution. In addition, the safety valve has a compact structure and occupies a small space. It is not only beautiful and practical, but also avoids the problem that the welded part is prone to oxidation and falling off in the traditional way, thus significantly improving the explosion-proof performance and safety factor. Finally, the design of the safety valve also takes into account ease of use and maintainability. The elastic pulling structure simplifies the reset operation, reduces the maintenance cost, and improves the service life of the equipment. In summary, the new safety valve with an explosion-proof device shows significant advantages in solving the safety problems existing in traditional safety valves, providing a strong guarantee for industrial safety production. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Structural schematic diagram of the present utility model;

[0017] Figure 2 Structural schematic diagram of the positioning plate of the present utility model;

[0018] Figure 3 Structural schematic diagram of the arc top of the present utility model;

[0019] Figure 4 Structural schematic diagram of the plug of the present utility model;

[0020] Figure 5 Structural schematic diagram of the center plate of the present utility model.

[0021] In the figure: 1, valve body housing; 2, top housing; 3, positioning plate; 4, positioning screw; 5, inclined surface; 6, arc top; 7, vent hole; 8, connecting ring plate; 9, limiting plate; 10, plug; 11, moving column; 12, center plate; 13, guide rod; 14, compression spring. Specific embodiments

[0022] In order to make the purpose, technical solutions and advantages of the present utility model more clear, the following will further describe the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] Refer to Figures 1-5 , a new type of safety valve with an explosion-proof device, including a valve body housing 1 and a top housing 2. The top housing 2 is connected to the top of the valve body housing 1 and is in communication with the interior of the valve body housing 1. Inclined surfaces 5 are provided on both sides of the top housing 2. A plurality of vent holes 7 are provided on one side of the inclined surface 5. A moving column 11 is provided inside each vent hole 7. A plug 10 is provided at one end of the moving column 11, and a limiting plate 9 provided inside the top housing 2 is connected to the other end. The diameter of the moving column 11 is smaller than the diameter of the vent hole 7, and the diameters of the limiting plate 9 and the plug 10 are both larger than the diameter of the vent hole 7. An elastic pulling structure is provided on one side of each limiting plate 9.

[0024] This solution has the following working process:

[0025] When the new safety valve with explosion-proof device is working, it first monitors and controls the pressure inside the system through the overall structure composed of the valve body shell 1 and the top shell 2. When the pressure inside the system is normal, the safety valve is in the closed state to maintain the stable operation of the system. Once the pressure inside the system rises abnormally and reaches the predetermined value, the vent hole 7 on the top shell 2 will play a key role. Since the diameter of the moving column 11 is smaller than that of the vent hole 7, under the action of pressure, the moving column 11 will be pushed, so that the plug 10 no longer blocks the vent hole 7, allowing the high-pressure gas inside the system to be quickly discharged through the vent hole 7 to achieve automatic pressure relief. During this process, the limit plate 9 ensures that the moving column 11 and the plug 10 can reset after the pressure returns to normal and re-block the vent hole 7 to prevent a large amount of loss of the medium inside the system. In addition, the elastic pulling structure plays a role in buffering and resetting during the pressure relief process, ensuring the stability and reliability of the safety valve.

[0026] According to the above working process, it can be known that:

[0027] First of all, through the ingeniously designed vent hole 7 and moving column 11 structure, the function of automatically opening and relieving pressure when the equipment pressure rises to the predetermined value is realized, effectively preventing the pressure inside the equipment from continuing to rise dangerously. This design not only improves the safety of the equipment but also enhances the stability of the system. Secondly, the diameters of the limit plate 9 and the plug 10 are designed to be larger than that of the vent hole 7, ensuring that the safety valve can be automatically closed in time when the pressure drops after pressure relief, thus preventing a large amount of loss of the medium inside the equipment and greatly reducing resource waste and environmental pollution. In addition, the safety valve has a compact structure and occupies a small space. It is not only beautiful and practical but also avoids the problem that the welded joints are prone to oxidation and falling off in the traditional method, thus significantly improving the explosion-proof performance and safety factor. Finally, the design of this safety valve also takes into account usability and maintainability. The elastic pulling structure simplifies the reset operation, reduces the maintenance cost, and increases the service life of the equipment. In summary, the new safety valve with explosion-proof device shows significant advantages in solving the safety problems existing in traditional safety valves, providing a strong guarantee for industrial safety production.

[0028] Furthermore, the elastic pulling structure includes a connecting ring plate 8 disposed on one side of the limiting plate 9. A plurality of guide rods 13 are connected to one side of the connecting ring plate 8. One end of each guide rod 13 passes through the limiting plate 9 through a sliding sleeve and is connected to the inner wall of the top housing 2. A central elastic member is provided at the center of one side of the connecting ring plate 8, and one end of the elastic member is connected to one side of the limiting plate 9. Specifically, through the arrangement of the connecting ring plate 8, the guide rods 13, and the elastic member, when the internal pressure of the system increases, the moving column 11 is pushed, and the connecting ring plate 8 slides inside the top housing 2 through the guide rods 13. At the same time, the elastic member is compressed to store elastic potential energy. When the pressure decreases, the elastic member releases the elastic potential energy to push the connecting ring plate 8 and the limiting plate 9 to reset, so that the plug 10 re-seals the air vent 7. Such a design ensures that the safety valve can respond quickly to pressure changes, open and close in a timely manner, and improves the sensitivity and reliability of the safety valve.

[0029] Furthermore, a central plate 12 is provided at the center of the connecting ring plate 8. The outer circle of the central plate 12 is connected to the inner wall of the connecting ring plate 8 through a plurality of fixing rods. Specifically, through the arrangement of the central plate 12 and the fixing rods, the central plate 12 is connected to the connecting ring plate 8 through the fixing rods, enhancing the structural stability of the connecting ring plate 8, enabling it to remain flat and not deform under pressure changes, thereby ensuring the normal operation of the elastic member. Such a design improves the durability and stability of the safety valve.

[0030] Furthermore, the elastic member is a compression spring 14. One end of the compression spring 14 is elastically connected to one side of the central plate 12, and the other end is elastically connected to one side of the limiting plate 9. Specifically, through the arrangement of the compression spring 14, when the internal pressure of the system increases, the compression spring 14 is compressed to store a large amount of elastic potential energy. When the pressure decreases, the compression spring 14 quickly releases the elastic potential energy to push the limiting plate 9 and the plug 10 to quickly reset. Such a design enables the safety valve to complete the opening and closing actions in an extremely short time, effectively preventing a large amount of loss of the internal medium of the system.

[0031] Furthermore, a sealing gasket is connected to the side of the plug 10 close to the inclined surface 5, and the top of the top housing 2 is provided with an arc-shaped top 6. Specifically, through the arrangement of the sealing gasket, a sealing gasket is added to the side of the plug 10 close to the inclined surface 5, improving the sealing performance between the plug 10 and the air vent 7. Such a design effectively prevents gas leakage and ensures the sealing performance of the safety valve in the closed state. At the same time, the design of the arc-shaped top 6 enhances the structural strength of the top housing 2, enabling it to withstand greater pressure without deformation.

[0032] Furthermore, a number of positioning plates 3 are connected to both sides of the top shell 2. A fixing plate connected to the side wall of the valve body housing 1 is provided at the bottom of each positioning plate 3. A positioning screw 4 is provided at the top of each positioning plate 3. One end of the positioning screw 4 passes through the positioning plate 3 through a screw sleeve and is threadedly connected to the top of the adjacent fixing plate. Specifically, through the arrangement of the positioning plate 3, the fixing plate and the positioning screw 4, the positioning plate 3 is connected to the valve body housing 1 through the fixing plate, enhancing the structural stability of the entire safety valve. At the same time, the positioning screw 4 is connected to the fixing plate through a screw sleeve, facilitating the adjustment and fixing of the position of the positioning plate 3. Such a design makes the installation and debugging process of the safety valve more flexible and convenient, while ensuring the stability of the safety valve during use.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A new safety valve with explosion-proof device, characterized in that: include: A valve body shell (1) and a top shell (2), wherein the top shell (2) is connected to the top of the valve body shell (1) and communicates with the interior of the valve body shell (1), both sides of the top shell (2) are provided with inclined surfaces (5), one side of the inclined surface (5) is provided with a plurality of air leakage holes (7), each air leakage hole (7) is provided with a movable column (11), one end of the movable column (11) is provided with a plug (10), and the other end is connected to a limit plate (9) provided inside the top shell (2), the diameter of the movable column (11) is smaller than the diameter of the air leakage hole (7), the diameters of the limit plate (9) and the plug (10) are both larger than the diameter of the air leakage hole (7), and one side of each limit plate (9) is provided with an elastic pulling structure.

2. A new safety valve with explosion-proof device according to claim 1, characterized in that: The elastic pulling structure comprises a connecting ring plate (8) arranged on one side of a limiting plate (9), one side of the connecting ring plate (8) is connected to a plurality of guide rods (13), one end of the guide rod (13) passes through the limiting plate (9) and is connected to the inner wall of the top shell (2) via a sliding sleeve, and an elastic member is arranged at the center of one side of the connecting ring plate (8), one end of the elastic member is connected to one side of the limiting plate (9).

3. A new safety valve with explosion-proof device according to claim 2, characterized in that: A center plate (12) is arranged at the center of the connecting ring plate (8), and the outer ring of the center plate (12) is connected to the inner wall of the connecting ring plate (8) through a plurality of fixing rods.

4. A new safety valve with explosion-proof device according to claim 3, characterized in that: The elastic member is a compression spring (14), one end of which is elastically connected to one side of the center plate (12), and the other end of which is elastically connected to one side of the limit plate (9).

5. A novel safety valve with explosion-proof device according to claim 1, characterized in that: A sealing gasket is connected to a side of the plug (10) close to the inclined surface (5), and the top of the top shell (2) is configured as an arc-shaped top (6).

6. A novel safety valve with explosion-proof device according to claim 5, characterized in that: A plurality of positioning plates (3) are connected to both sides of the top shell (2), and a fixing plate connected to the side wall of the valve body shell (1) is provided at the bottom of each positioning plate (3), and a positioning screw (4) is provided at the top of each positioning plate (3), and one end of the positioning screw (4) passes through the positioning plate (3) through a threaded sleeve and is threadedly connected to the top of an adjacent fixing plate.

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