Safety valve adopting elastic material for auxiliary sealing

Abstract

The utility model provides a safety valve adopting an elastic material for auxiliary sealing. The safety valve comprises a valve body, an elastic assembly, a valve clack assembly, an adjusting nut and an elastic material sealing ring. The valve clack assembly, the elastic assembly and the elastic material sealing ring are arranged in the valve body, the adjusting nut is arranged on the side wall of the valve body and connected with the elastic assembly, the adjusting nut is used for adjusting the tension degree of the elastic assembly, the elastic assembly is connected with the valve clack assembly, and the elastic assembly is used for driving the valve clack assembly to move. The valve clack assembly is used for opening or closing the valve, and the elastic sealing ring is used for sealing the valve clack assembly and the valve body. According to the utility model, the valve clack assembly is used for primary hard sealing, and the elastic sealing ring is used for auxiliary sealing of the valve clack assembly and the valve body for secondary sealing, so that the sealing effect of hard sealing is improved, the safety of a pressure vessel pipeline is ensured, the leakage of a medium is prevented, and the pressure is stable.

Description

Technical Field

[0001] This utility model relates to the field of safety valve technology, specifically to a safety valve that uses an elastic material for auxiliary sealing. Background Technology

[0002] Safety valves are increasingly used in modern manufacturing engineering technology. The main function of safety valves is to prevent dangerous situations such as explosions or leaks caused by excessive pressure inside equipment or containers.

[0003] As safety valve technology is increasingly applied across various industries, the performance of traditional safety valves is constantly improving, making the development of new safety valve products that meet market demands imperative. Traditional safety valves are divided into two categories: soft-seal and hard-seal.

[0004] The advantage of hard seals is that the opening pressure is relatively stable, but the disadvantages are that it is difficult to achieve zero leakage, and the requirements for operating conditions are high. Once there are even a little bit of pipeline impurities on the sealing surface, the sealing surface will be damaged, and the cost is high.

[0005] The advantage of soft seals is that they can easily achieve zero leakage. However, due to high pressure, the valve disc rubber and plastic are prone to deformation and damage, the pressure is unstable, and there may even be sudden leakage during the pressure holding period, resulting in a large loss of precious gas for customers.

[0006] Therefore, most safety valves on the market use hard seals, which are costly. Although the leakage rate meets leakage standards, it still results in the loss of gas for customers. More and more customers are using precious or even harmful gases such as high-pressure hydrogen and high-pressure helium. In this case, a safety valve with stable pressure and zero leakage is needed to ensure the safety of pressure vessels and pipelines and prevent media leakage. Utility Model Content

[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a method that uses a valve disc assembly for primary hard sealing and an elastic sealing ring for secondary sealing between the valve disc assembly and the valve body, thereby improving the sealing effect of the hard seal, ensuring the safety of pressure vessel pipelines, preventing media leakage, and achieving pressure stability.

[0008] To achieve the above objectives, according to one aspect of the present invention, a safety valve employing an elastic material for auxiliary sealing is provided, comprising: a valve body, an elastic component, a valve disc assembly, an adjusting nut, and an elastic material sealing ring;

[0009] The valve disc assembly, the elastic component, and the elastic material sealing ring are disposed inside the valve body. The adjusting nut is disposed on the side wall of the valve body and is connected to the elastic component. The adjusting nut is used to adjust the tension of the elastic component. The elastic component is connected to the valve disc assembly and is used to drive the valve disc assembly to move. The valve disc assembly is used to open or close the valve. The elastic sealing ring is used to seal the valve disc assembly and the valve body.

[0010] Optionally, the valve body includes an upper valve body and a lower valve body, the upper valve body and the lower valve body are connected, and the upper valve body is disposed above the lower valve body.

[0011] Optionally, the valve disc assembly includes a valve core and a valve disc rod. The valve core is disposed at the bottom of the lower valve body, one end of the valve disc rod is connected to the valve core, the valve disc rod passes through the lower valve body, and a portion of the valve disc rod is located in the upper valve body. The valve disc rod is used to drive the valve core to open or close the valve.

[0012] Optionally, the elastic material sealing ring is disposed between the valve core, the lower valve body, and the lower valve body, and the elastic material sealing ring is used to seal the connection between the valve core, the valve stem, and the lower valve body.

[0013] Optionally, it also includes an internal hexagonal locking screw, which is disposed above the elastic material sealing ring and is used to fix the elastic material sealing ring and guide the valve stem.

[0014] Optionally, it may also include retaining rings, star rings, and O-rings;

[0015] The retaining ring is disposed at the connection between the upper valve body and the lower valve body. The retaining ring is used to seal the connection between the upper valve body and the lower valve body and to fix the star-shaped ring.

[0016] The star-shaped ring is disposed inside the upper valve body and above the retaining ring. The star-shaped ring is used to seal the connection between the valve stem and the upper valve body.

[0017] The O-ring is disposed at the edge connection between the upper valve body and the lower valve body, and the O-ring is used to seal the edge connection between the upper valve body and the lower valve body.

[0018] Optionally, the elastic component includes an elastic component base and an elastic component, the elastic component is disposed inside the upper valve body, the elastic component base is connected to the other end of the valve stem, and the elastic component is disposed on the elastic component base.

[0019] Optionally, the adjusting nut is disposed on the side wall of the upper valve body, the adjusting nut is connected to the elastic component, and the adjusting nut is used to adjust the tension of the elastic component.

[0020] Optionally, it also includes an adjusting valve cap, which is disposed on the side wall of the upper valve body and above the adjusting nut. The adjusting valve cap is used to adjust the pressure of the safety valve and also to adjust the preload of the elastic component.

[0021] Optionally, the elastic material sealing ring is a rubber sealing ring.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The above technical solution uses a valve disc assembly for primary hard sealing and an elastic material sealing ring for secondary sealing between the valve disc assembly and the valve body. This reduces the pressure on the elastic material sealing ring, prevents damage to the elastic material sealing ring, improves the sealing effect of the hard seal, ensures the pressure stability of the pressure vessel pipeline, thereby ensuring the safety of the pressure vessel pipeline, preventing media leakage, and simultaneously achieving pressure stability of the hard seal and zero media leakage of the soft seal. Attached Figure Description

[0024] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a safety valve using elastic material for auxiliary sealing, provided by an exemplary embodiment of this utility model.

[0026] Figure 2 This is a partial structural schematic diagram of a safety valve employing elastic material for auxiliary sealing, provided by an exemplary embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures

[0028] 100 Safety valves using elastic materials for auxiliary sealing

[0029] 1. Lower valve body

[0030] 2 Valve core

[0031] 3. Elastic material sealing ring

[0032] 4. Hex socket head cap screws

[0033] 5. Valve stem

[0034] 6 Upper valve body

[0035] 7. Star-shaped ring

[0036] 8 O-rings

[0037] 9. Flexible component base

[0038] 10. Elastic components

[0039] 11. Regulating valve cap

[0040] 12 Adjusting nut

[0041] 13-ring

[0042] 14 Safety valve outlet passage Detailed Implementation

[0043] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0044] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description.

[0045] Figure 1 This is a schematic diagram of the overall structure of a safety valve using elastic material for auxiliary sealing, provided by an exemplary embodiment of this utility model.

[0046] like Figure 1 As shown, this utility model provides a safety valve 100 with elastic material auxiliary sealing, including a valve body, an elastic component, a valve disc component, an adjusting nut 12, and an elastic material sealing ring 3.

[0047] The valve disc assembly, the elastic component, and the elastic material sealing ring 3 are disposed inside the valve body. The adjusting nut 12 is disposed on the side wall of the valve body. The adjusting nut 12 is connected to the elastic component and is used to adjust the tension of the elastic component. The elastic component is connected to the valve disc assembly and is used to drive the valve disc assembly to move. The valve disc assembly is used to open or close the valve. The elastic sealing ring is used to seal the valve disc assembly and the valve body.

[0048] Among them, the elastic material sealing ring 3 can be a rubber sealing ring or other types of sealing rings made of elastic materials.

[0049] The above technical solution uses a valve disc assembly for primary hard sealing and an elastic material sealing ring 3 for secondary sealing between the valve disc assembly and the valve body. This reduces the pressure on the elastic material sealing ring 3, prevents damage to the elastic material sealing ring 3, improves the sealing effect of the hard seal, ensures the pressure stability of the pressure vessel pipeline, thereby ensuring the safety of the pressure vessel pipeline, preventing media leakage, and simultaneously achieving pressure stability of the hard seal and zero media leakage of the soft seal.

[0050] In one possible embodiment, the valve body includes an upper valve body 6 and a lower valve body 1, which are connected and the upper valve body 6 is disposed above the lower valve body 1.

[0051] The valve body is the main part of the safety valve 100, which uses elastic material for auxiliary sealing. The internal design of the upper valve body 6 and the lower valve body 1 can be set according to the specific requirements of the medium flow rate.

[0052] like Figure 1 As shown, the upper valve body 6 has an outward convex structure, and the lower valve body 1 has an inward concave structure. The upper valve body 6 and the lower valve body 1 are connected by the outward convex structure and the inward concave structure.

[0053] In one possible embodiment, the valve disc assembly includes a valve core 2 and a valve disc rod 5. The valve core 2 is disposed at the bottom of the lower valve body 1, one end of the valve disc rod 5 is connected to the valve core 2, the valve disc rod 5 passes through the lower valve body 1, and a portion of the valve disc rod 5 is located in the upper valve body 6. The valve disc rod 5 is used to drive the valve core 2 to open or close the valve.

[0054] The valve disc assembly is the moving part of the safety valve 100, which uses elastic material for auxiliary sealing. The valve disc rod 5 moves up and down to drive the valve core 2 to open or close the valve.

[0055] The safety valve 100 of this invention, which uses elastic material for auxiliary sealing, is used for hard sealing, and the valve disc assembly can be made of metal.

[0056] The valve assembly is used for the initial hard seal, sealing the pressure vessel pipeline and ensuring stable pressure in the pressure vessel pipeline.

[0057] In one possible embodiment, an elastic material sealing ring 3 is disposed between the valve core 2, the valve disc rod 5, and the lower valve body 1. The elastic material sealing ring 3 is used to seal the connection between the valve core 2, the valve disc rod 5, and the lower valve body 1 to prevent media leakage.

[0058] The elastic material sealing ring 3 is used for secondary sealing to fix the medium leaking from the valve disc assembly during the first hard seal.

[0059] In one possible embodiment, a safety valve 100 employing an elastic material for auxiliary sealing further includes an internal hexagonal locking screw 4, which is positioned above the elastic material sealing ring 3. The internal hexagonal locking screw 4 is used to fix the elastic material sealing ring 3 and guide the valve stem 5 to prevent the elastic material sealing ring 3 from falling off.

[0060] Among them, the internal hex lock screw 4 is also used to fix the O-ring 8.

[0061] In one possible embodiment, a safety valve employing an elastic material for assisted sealing further includes a retaining ring 13, a star-shaped ring 7, and an O-ring 8.

[0062] The retaining ring 13 is installed at the connection between the upper valve body and the lower valve body. The retaining ring 13 is used to seal the connection between the upper valve body 6 and the lower valve body 1, and to fix the star ring 7.

[0063] The star-shaped ring 7 is located inside the upper valve body 6 and above the retaining ring 13. The star-shaped ring 7 is used to seal the connection between the valve stem 5 and the upper valve body 6.

[0064] O-ring 8 is installed at the edge connection between the upper valve body 6 and the lower valve body 1. O-ring 8 is used to seal the edges of the upper valve body 6 and the lower valve body 1 to prevent media leakage.

[0065] In one possible embodiment, the elastic component includes an elastic component base 9 and an elastic component 10. The elastic component is disposed inside the upper valve body 6. The elastic component base 9 is connected to the other end of the valve stem 5, and the elastic component 10 is disposed on the elastic component base 9.

[0066] In this invention, the elastic component is the source of power for driving the valve assembly. The elastic component 10 can be a spring, and the elastic component base 9 can be a spring base. The spring compression or expansion provides elastic force, driving the valve assembly to move up and down.

[0067] As an example, when the spring is compressed, the valve disc assembly moves upward, the valve core 2 opens, and the valve opens.

[0068] As another example, the spring extends, the valve disc assembly moves downward, the valve core 2 closes, and the valve closes.

[0069] In one possible embodiment, the adjusting nut 12 is disposed on the side wall of the upper valve body 6, and the adjusting nut 12 is connected to the elastic member 10. The adjusting nut 12 is used to adjust the tension of the elastic member 10.

[0070] The adjusting nut 12 is the source of force for adjusting the elastic component. The tension of the spring can be adjusted by adjusting the position of the adjusting nut 12. The adjusting nut 12 is located on the outer wall of the elastic component 10 inside the upper valve body 6.

[0071] In one possible embodiment, a safety valve 100 employing an elastic material for assisted sealing further includes an adjusting valve cap 11, which is disposed on the side wall of the upper valve body 6 and above the adjusting nut 12. The adjusting valve cap 11 is used to adjust the pressure of the safety valve 100 and also to adjust the preload of the elastic component 10.

[0072] In one possible embodiment, a safety valve 100 with an elastic material-assisted seal further includes a safety valve outlet channel 14, which is disposed inside the lower valve body 1 and above the internal hexagonal locking screw 4. The safety valve outlet channel 14 is used to connect an external pipe and to release the pressure released by the safety valve 100.

[0073] Therefore, the safety valve 100 provided by this utility model, which uses elastic material for auxiliary sealing, is suitable for high-pressure pipeline environments and meets market requirements, achieving pressure stability and zero leakage. The addition of an elastic sealing ring in the safety valve for secondary sealing reduces costs.

[0074] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A safety valve employing an elastic material for auxiliary sealing, characterized in that, include: Valve body, elastic component, valve disc assembly, adjusting nut, and elastic material sealing ring; The valve disc assembly, the elastic component, and the elastic material sealing ring are disposed inside the valve body. The adjusting nut is disposed on the side wall of the valve body and is connected to the elastic component. The adjusting nut is used to adjust the tension of the elastic component. The elastic component is connected to the valve disc assembly and is used to drive the valve disc assembly to move. The valve disc assembly is used to open or close the valve. The elastic sealing ring is used to seal the valve disc assembly and the valve body.

2. The safety valve employing elastic material for auxiliary sealing according to claim 1, characterized in that, The valve body includes an upper valve body and a lower valve body, which are connected and the upper valve body is positioned above the lower valve body.

3. The safety valve employing elastic material for auxiliary sealing according to claim 2, characterized in that, The valve assembly includes a valve core and a valve rod. The valve core is disposed at the bottom of the lower valve body. One end of the valve rod is connected to the valve core. The valve rod passes through the lower valve body, and a portion of the valve rod is located in the upper valve body. The valve rod is used to drive the valve core to open or close the valve.

4. The safety valve employing elastic material for auxiliary sealing according to claim 3, characterized in that, The elastic material sealing ring is disposed between the valve core, the valve stem, and the lower valve body, and is used to seal the connection between the valve core, the valve stem, and the lower valve body.

5. The safety valve employing elastic material for auxiliary sealing according to claim 4, characterized in that, It also includes an internal hexagon locking screw, which is positioned above the elastic material sealing ring. The internal hexagon locking screw is used to fix the elastic material sealing ring and guide the valve stem.

6. The safety valve employing elastic material for auxiliary sealing according to claim 3, characterized in that, This also includes retaining rings, star-shaped rings, and O-rings; The retaining ring is disposed at the connection between the upper valve body and the lower valve body. The retaining ring is used to seal the connection between the upper valve body and the lower valve body and to fix the star-shaped ring. The star-shaped ring is disposed inside the upper valve body and above the retaining ring, and the star-shaped ring is used to seal the connection between the valve stem and the upper valve body; The O-ring is disposed at the edge connection between the upper valve body and the lower valve body, and the O-ring is used to seal the edge connection between the upper valve body and the lower valve body.

7. The safety valve employing elastic material for auxiliary sealing according to claim 3, characterized in that, The elastic component includes an elastic component base and an elastic component. The elastic component is disposed inside the upper valve body. The elastic component base is connected to the other end of the valve stem. The elastic component is disposed on the elastic component base.

8. The safety valve employing elastic material for auxiliary sealing according to claim 3, characterized in that, The adjusting nut is disposed on the side wall of the upper valve body, and the adjusting nut is connected to the elastic component. The adjusting nut is used to adjust the tension of the elastic component.

9. The safety valve employing elastic material for auxiliary sealing according to claim 2, characterized in that, It also includes an adjusting valve cap, which is disposed on the side wall of the upper valve body and above the adjusting nut. The adjusting valve cap is used to adjust the pressure of the safety valve and also to adjust the preload of the elastic component.

10. The safety valve according to claim 1, which employs an elastic material for auxiliary sealing, is characterized in that, The elastic material sealing ring is a rubber sealing ring.

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