High-temperature and high-pressure bidirectional metal seal valve

Abstract

The application discloses a high-temperature and high-pressure bidirectional metal sealing valve and belongs to the technical field of valves. Mainly comprising a valve body and a flow channel penetrating through the valve body, an opening and closing assembly is arranged on the valve body, an adjusting assembly is arranged on the valve body, the adjusting assembly comprises a transition pipe which is arranged in the interior of the valve body, a cavity is arranged in the interior of the valve body, the diameter of the cavity is larger than that of the flow channel, two groups of bellows are arranged on the transition pipe, a mounting frame is mounted on the upper surface of the valve body, an electric cylinder is mounted on the mounting frame, the output end of the electric cylinder extends into the interior of the valve body, and the output end of the electric cylinder is connected with the transition pipe. The high-temperature and high-pressure bidirectional metal sealing valve can control the transition pipe and the bellows to form a curved channel when the flow rate of the fluid is large, so that the flow rate of the fluid is buffered, the scouring force on the valve is prevented from increasing, and the effect of buffering the fluid with a large flow rate is achieved.

Description

Technical Field

[0001] This application relates to the field of valve technology, specifically a high-temperature, high-pressure bidirectional metal-sealed valve. Background Technology

[0002] A bidirectional metal-sealed valve is a high-performance valve that uses metal materials as the sealing pair and has a bidirectional sealing function. Its core lies in achieving reliable sealing under forward and reverse media flow through a special structural design. Types include bidirectional metal-sealed butterfly valves and bidirectional metal-sealed rotary ball valves.

[0003] For example, the patent with publication number CN221762626U discloses a bidirectional metal-sealed butterfly valve. The valve stem is driven to rotate by a servo motor, which in turn drives the valve plate to rotate inside the valve body, thereby controlling the opening and closing of the valve body. A rubber block continuously applies pressure to keep the metal sheet in close contact with the outer ring of the valve plate. Even if wear occurs after long-term use, the rubber block can still push the metal sheet to keep in close contact with the valve plate, thus maintaining a high standard of sealing performance without being affected.

[0004] Although the aforementioned patent can achieve the opening and closing of the valve, when the valve is opened, the fluid flows through the opening of the valve to the subsequent process, which means that the valve is constantly being scoured by the fluid as it passes through. Especially when the fluid flow rate is too high, the scouring force on the valve may increase and cannot be buffered. After being scoured by high-velocity fluid for a long time, the wear of the valve will be accelerated, thereby reducing the service life of the valve.

[0005] Therefore, it is necessary to provide a high-temperature, high-pressure, bidirectional metal-sealed valve to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a high-temperature and high-pressure bidirectional metal-sealed valve to achieve the effect of buffering high-velocity fluids.

[0008] The technical solution adopted by this application to solve its technical problem is: a high-temperature and high-pressure bidirectional metal-sealed valve, including a valve body and a flow channel penetrating the valve body; a switching assembly disposed on the valve body; and an adjusting assembly disposed on the valve body, the adjusting assembly including: a transition pipe disposed inside the valve body, the valve body having a cavity larger than the diameter of the flow channel; two sets of bellows disposed on the transition pipe; and a mounting bracket disposed on the upper surface of the valve body, on which an electric cylinder is mounted, the output end of the electric cylinder extending into the interior of the valve body and connected to the transition pipe.

[0009] Furthermore, at least two sets of symmetrically arranged bosses are provided on the outer ring of the transition tube and the inner wall of the valve body, and a spring is provided between each pair of bosses.

[0010] Furthermore, flanges are provided at both ends of the valve body, with one set of bellows connected to the flow channel and the other set of bellows connected to the flange.

[0011] Furthermore, the lower surface of the valve body is provided with at least two sets of semi-circular clamps, and the mounting bracket is provided with at least two sets of extensions. The extensions are provided with through holes, and the two ends of the clamps pass through the through holes. Nuts are threaded onto the two ends of the clamps.

[0012] Furthermore, the switching assembly includes a bracket disposed on the outer surface of the valve body, a rotating rod rotatably mounted together with the bracket and the interior of the valve body, and a valve mounted on the rotating rod, the valve being located inside the flow channel.

[0013] Furthermore, an equipment box is installed on the top of the bracket, the top of the rotating rod is rotatably installed inside the equipment box, a worm gear is installed on the top of the rotating rod, a worm is rotatably installed inside the equipment box, the worm and the worm gear are meshed and connected, and a handwheel is installed on the worm.

[0014] The beneficial effects of this application are: the high temperature and high pressure bidirectional metal sealing valve provided by this application, by adjusting the setting of the components, can control the transition pipe and the bellows to form a curved channel when the fluid flow rate increases, so that the fluid flow rate is buffered, avoiding the increase of the scouring force on the valve, and achieving the effect of buffering the high flow rate fluid.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram of a high-temperature and high-pressure bidirectional metal-sealed valve according to this application;

[0019] Figure 2 for Figure 1 A partial sectional view from another perspective;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] The following are the labeling elements in the figure:

[0022] 1. Valve body; 101. Flow channel;

[0023] 2. Switch assembly; 21. Equipment box; 22. Rotary lever; 23. Bracket; 24. Valve; 25. Handwheel;

[0024] 3. Adjustment component; 31. Nut; 32. Mounting bracket; 33. Electric cylinder; 34. Clamp; 35. Transition pipe; 36. Bellows; 37. Boss; 38. Spring. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figure 1 As shown, this application provides a high-temperature and high-pressure bidirectional metal-sealed valve, including a valve body 1, which is made of a high-temperature and high-pressure material, such as alloy or stainless steel, and is mainly used in high-temperature and high-pressure environments.

[0028] A flow channel 101 suitable for fluid flow is provided through the valve body 1. A switching assembly 2 is provided on the valve body 1. The switching assembly 2 is used to open or close the flow channel 101. The valve body 1 has flanges at both ends to facilitate connection with other pipelines. Specifically:

[0029] The switching assembly 2 includes a bracket 23 disposed on the outer surface of the valve body 1. A rotating rod 22 is rotatably mounted on the bracket 23 and inside the valve body 1. A valve 24 adapted to the flow channel 101 is fixedly mounted on the rotating rod 22. The valve 24 is located inside the flow channel 101 so that the rotating rod 22 can be rotated and the valve 24 can be rotated under the action of external force to control the opening and closing of the flow channel 101.

[0030] A device box 21 is fixedly installed on the top of the bracket 23. The top end of the rotating rod 22 is rotatably installed inside the device box 21, and a worm wheel (not shown in the figure) is fixedly installed on the top end of the rotating rod 22. The worm wheel is rotatably installed inside the device box 21. A worm is rotatably installed inside the device box 21. The worm and the worm wheel are meshed and connected. A handwheel 25 is fixedly installed on the worm.

[0031] So that the handwheel 25 can be held to drive the worm gear to rotate, which in turn drives the worm wheel to rotate, thereby driving the rotating rod 22 to rotate, thereby controlling the valve 24 to open or close the flow channel 101;

[0032] An adjustment component 3 is provided on the valve body 1. This adjustment component 3 is used to buffer the fluid flow rate when it is large.

[0033] like Figures 1-3 As shown, the regulating component 3 includes a transition tube 35 disposed inside the valve body 1, and a cavity is provided inside the valve body 1. The diameter of the cavity is larger than the diameter of the flow channel 101 and the transition tube 35, so that the cavity can contain part of the flow channel 101 and the transition tube 35 is located inside the cavity.

[0034] Bellows 36 are provided at both ends of the transition pipe 35. One set of bellows 36 is connected to the flow channel 101, and the other set of bellows 36 is connected to the flange. So when the valve body 1 is connected to other pipes, the two sets of bellows 36 can be connected to the flow channel 101 and other pipes, so that the fluid first enters the bellows 36 and the transition pipe 35 and then enters the flow channel 101.

[0035] A mounting bracket 32 ​​is provided on the upper surface of the outer ring of the valve body 1. An electric cylinder 33 is fixedly mounted on the top of the mounting bracket 32. The output end of the electric cylinder 33 passes through the mounting bracket 32 ​​and extends into the interior of the valve body 1. The output end of the electric cylinder 33 is connected to the transition pipe 35.

[0036] It should be noted that sensors can be installed in other pipelines to detect the flow rate of the fluid. When the fluid flow rate is large, the electric cylinder 33 is activated, which drives the transition pipe 35 to move downward. At this time, the two sets of bellows 36 will be stretched, thereby forming a curved channel, which buffers the flow rate of the fluid entering the valve body 1.

[0037] Continue to refer to Figure 3Multiple sets of symmetrically arranged protrusions 37 can be provided on both the outer ring of the transition tube 35 and the inner wall of the valve body 1. A spring 38 is provided between each two sets of protrusions 37, so that when the transition tube 35 moves downward, it can be buffered to avoid direct hard contact with the inner wall of the valve body 1.

[0038] Multiple sets of semi-circular clamps 34 adapted to the outer ring of the valve body 1 are provided on the lower surface of the valve body 1, and multiple sets of extensions are provided on the mounting bracket 32, with through holes opened on the extensions.

[0039] So that the two ends of the clamp 34 can be inserted into the through hole until the clamp 34 abuts against the outer ring of the valve body 1, thereby clamping the mounting bracket 32 ​​on the outer ring of the valve body 1;

[0040] Furthermore, the clamp 34 is threaded with nuts 31 at both ends, so that after the clamp 34 clamps the valve body 1, the nuts 31 can be rotated until they abut against the extension, thereby fixing the mounting bracket 32 ​​to the outer surface of the valve body 1.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high temperature, high pressure, bidirectional metal seal valve characterized by: include: Valve body (1), and flow channel (101) penetrating the valve body (1); A switching assembly (2) is disposed on the valve body (1); Adjustment assembly (3), which is disposed on the valve body (1), includes: A transition tube (35) is disposed inside the valve body (1), and the valve body (1) has a cavity inside, the cavity being larger than the diameter of the flow channel (101); Two sets of corrugated pipes (36) are disposed on the transition pipe (35); Mounting bracket (32) is disposed on the upper surface of the valve body (1). An electric cylinder (33) is mounted on the mounting bracket (32). The output end of the electric cylinder (33) extends into the interior of the valve body (1) and is connected to the transition pipe (35).

2. The high-temperature and high-pressure bidirectional metal-sealed valve according to claim 1, characterized in that: At least two sets of symmetrically arranged bosses (37) are provided on the outer ring of the transition tube (35) and the inner wall of the valve body (1), and a spring (38) is provided between each two sets of bosses (37).

3. The high-temperature and high-pressure bidirectional metal-sealed valve according to claim 2, characterized in that: The valve body (1) is provided with flanges at both ends, one set of the bellows (36) is connected to the flow channel (101), and the other set of the bellows (36) is connected to the flange.

4. The high-temperature and high-pressure bidirectional metal-sealed valve according to claim 3, characterized in that: The lower surface of the valve body (1) is provided with at least two sets of semi-circular clamps (34), and the mounting bracket (32) is provided with at least two sets of extensions. The extensions are provided with through holes, and the two ends of the clamps (34) pass through the through holes. Nuts (31) are threaded onto the two ends of the clamps (34).

5. A high-temperature, high-pressure bidirectional metal-sealed valve according to claim 4, characterized in that: The switching assembly (2) includes a bracket (23) disposed on the outer surface of the valve body (1). A rotating rod (22) is rotatably mounted on the bracket (23) and the valve body (1). A valve (24) is mounted on the rotating rod (22). The valve (24) is located inside the flow channel (101).

6. A high-temperature, high-pressure bidirectional metal-sealed valve according to claim 5, characterized in that: The top of the bracket (23) is equipped with an equipment box (21), the top of the rotating rod (22) is rotatably installed inside the equipment box (21), the top of the rotating rod (22) is equipped with a worm gear, the inside of the equipment box (21) is rotatably installed with a worm, the worm and the worm gear are meshed and connected, and a handwheel (25) is installed on the worm.

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