Valve casting for hydrogen production through hydrogenation
By introducing pre-fixing and sealing devices into the valve castings, the problems of valve misalignment and leakage were solved, ensuring the stability and sealing of the hydrogenation process.
Patent Information
- Application Number
- CN202423297556.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Valves are prone to misalignment when installed via flanges, leading to leakage problems.
A valve casting for hydrogen production using hydrogenation was designed, which includes a pre-fixing device and a sealing device. Through structures such as protrusions, retaining rings, retaining balls, rectangular grooves and sealing devices, it is ensured that misalignment and leakage do not occur when the valve is connected.
This effectively avoids valve misalignment during flange connection and ensures the sealing of hydrogen delivery, achieving a stable hydrogen production process.
Smart Images
Figure CN223511596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of valve castings for hydrogen production, and in particular to a valve casting for hydrogen production. Background Technology
[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. In hydrogen production, valve castings are often used for hydrogen addition. The valve is connected to a suitable position, and hydrogen is connected to the surface of the valve for hydrogen addition, thereby producing hydrogen.
[0003] The inventors discovered during routine valve use that valves are typically installed using flanges. Since flange installation requires diagonal mounting, valve misalignment may occur during installation, leading to leakage between valves and causing problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a valve casting for hydrogen production via hydrogenation.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a valve casting for hydrogen production, comprising a valve, wherein a pre-fixing device is provided on the side of the valve, a connecting pipe is fixedly connected to the top of the valve, a sealing device is provided inside the connecting pipe, an adjusting handle is provided on the surface of the valve, the pre-fixing device includes a circular groove formed on the side of the valve, and a protrusion is fixedly connected to one end of the valve.
[0006] The effect achieved by the above components is as follows: under the action of the protrusion and the groove, the valve connection will not be misaligned. When the valve is needed, it is installed in the appropriate position through the flange. When hydrogen production is needed, hydrogen is introduced into the interior of the connecting pipe through the sealing device, thereby achieving the function of hydrogen addition and production.
[0007] Preferably, a rectangular groove is formed inside the circular groove, and a rectangular block is fixedly connected to the surface of the protrusion.
[0008] The effect achieved by the above components is that, under the action of the rectangular groove and the rectangular block, rotation will not occur during pre-fixation.
[0009] Preferably, a retaining ring is fixedly connected to the surface of the protrusion, and an annular groove is formed inside the circular groove.
[0010] The effect achieved by the above components is that, under the action of the retaining ring and the ring groove, the protrusion is locked inside the circular groove, thereby achieving the function of limiting the position.
[0011] Preferably, a retaining ball is fixedly connected to the surface of the protrusion, and a retaining groove is formed on the inner wall of the circular groove.
[0012] The aforementioned components achieve the following effects: Under the action of the ball and the groove, the protrusion is locked inside the circular groove, thus achieving a fixing effect. When a valve needs to be connected, the protrusion is inserted into the circular groove, and under the action of the retaining ring and the annular groove, the protrusion is locked inside the circular groove, thus achieving a limiting effect. Under the action of the ball and the groove, the protrusion is locked inside the circular groove, thus achieving a fixing effect. Under the action of the rectangular groove and the rectangular block, rotation will not occur during pre-fixation, thus achieving a pre-fixing effect and avoiding misalignment when connected via flange.
[0013] Preferably, the sealing device includes a pipe inserted into the inside of the connecting pipe, a ring is fixedly connected inside the pipe, and a groove is formed on the inner wall of the connecting pipe.
[0014] The effect achieved by the above components is that, through the action of the ring and the groove, leakage will not occur when the pipe is connected.
[0015] Preferably, the connecting pipe has a groove inside, and a slider is fixedly connected to the surface of the pipe.
[0016] The effect achieved by the above components is that, under the action of the slide and the slider, the pipe will not rotate inside the connecting pipe, thereby achieving the function of limiting the position.
[0017] Preferably, a clamping rod is inserted into the surface of the connecting pipe, and one end of the clamping rod is inserted into the interior of the pipe.
[0018] The effect achieved by the above components is that, under the action of the clamp, the pipe is fixed inside the connecting pipe, thereby achieving the function of fixation.
[0019] Preferably, a spring is fitted onto the surface of the clamp rod, and the two ends of the spring are fixedly connected to one end of the clamp rod on the surface of the connecting tube.
[0020] The aforementioned components achieve the following effects: Under the action of the spring, the locking rod is inserted into the inside of the pipe in a self-locking manner. When hydrogen is needed, the pipe is inserted into the inside of the connecting pipe. Under the action of the ring and the groove, leakage will not occur when the pipe is connected. Under the action of the sliding groove and the slider, the pipe will not rotate inside the connecting pipe, thus achieving a limiting function. After the ring is inserted into the inside of the groove, under the action of the spring, the locking rod is inserted into the inside of the pipe in a self-locking manner, thus achieving a sealing function.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting a pre-fixing device, when a valve needs to be connected, the protrusion is inserted into the inside of the circular groove. Under the action of the retaining ring and the annular groove, the protrusion is locked inside the circular groove, thereby achieving the limiting function. Under the action of the retaining ball and the retaining groove, the protrusion is locked inside the circular groove, thereby achieving the fixing function. Under the action of the rectangular groove and the rectangular block, rotation will not occur during pre-fixation, thereby achieving the pre-fixing function. This avoids the misalignment phenomenon when connecting via flange, thus solving the problem that valves may be misaligned due to improper installation of diagonal screws when installed via flange. Attached Figure Description
[0023] Figure 1 A three-dimensional structural schematic diagram of a valve casting for hydrogen production is provided for this utility model;
[0024] Figure 2 A schematic diagram of a pre-fixing device for a valve casting used in hydrogen production is provided for this utility model;
[0025] Figure 3 This utility model provides a partial schematic diagram of a pre-fixing device for a valve casting used in hydrogen production.
[0026] Figure 4 This utility model presents a schematic diagram of a sealing device for a valve casting used in hydrogen production.
[0027] Legend: 1. Valve; 2. Pre-fixing device; 21. Protrusion; 22. Snap ring; 23. Snap ball; 24. Circular groove; 25. Ring groove; 26. Rectangular block; 27. Rectangular groove; 28. Snap groove; 3. Sealing device; 31. Pipe; 32. Circular ring; 33. Slide groove; 34. Sliding block; 35. Snap rod; 36. Spring; 37. Groove; 4. Connecting pipe; 5. Adjusting handle. Detailed Implementation
[0028] Example 1, as Figure 1-4 As shown, a casting of a valve 1 for hydrogen production includes a valve 1, a pre-fixing device 2 on the side of the valve 1, a connecting pipe 4 fixedly connected to the top of the valve 1, a sealing device 3 inside the connecting pipe 4, and an adjusting handle 5 on the surface of the valve 1. When the valve 1 is to be used, it is installed in a suitable position through a flange. When hydrogen production is required, hydrogen gas is introduced into the interior of the connecting pipe 4 through the sealing device 3, thereby achieving the function of hydrogen production.
[0029] Reference Figure 2-3The pre-fixing device 2 includes a circular groove 24 on the side of the valve 1. A protrusion 21 is fixedly connected to one end of the valve 1. Under the action of the protrusion 21 and the circular groove 24, the connection of the valve 1 will not be misaligned. When the valve 1 is needed, it is installed in a suitable position through the flange. When hydrogen production is needed, hydrogen is introduced into the interior of the connecting pipe 4 through the sealing device 3, thereby achieving the function of hydrogen production. A rectangular groove 27 is opened inside the circular groove 24. A rectangular block 26 is fixedly connected to the surface of the protrusion 21. Under the action of the rectangular groove 27 and the rectangular block 26, rotation will not occur during pre-fixation. A retaining ring 22 is fixedly connected to the surface of the protrusion 21. An annular groove 25 is opened inside the circular groove 24. Under the action of the retaining ring 22 and the annular groove 25, the protrusion 21 is locked in place. The inside of the circular groove 24 achieves a limiting function. The surface of the protrusion 21 is fixedly connected with a retaining ball 23. The inner wall of the circular groove 24 has a retaining groove 28. Under the action of the retaining ball 23 and the retaining groove 28, the protrusion 21 is locked inside the circular groove 24, thus achieving a fixing function. When it is necessary to connect valve 1, the protrusion 21 is inserted into the inside of the circular groove 24. Under the action of the retaining ring 22 and the ring groove 25, the protrusion 21 is locked inside the circular groove 24, thus achieving a limiting function. Under the action of the retaining ball 23 and the retaining groove 28, the protrusion 21 is locked inside the circular groove 24, thus achieving a fixing function. Under the action of the rectangular groove 27 and the rectangular block 26, the rotation phenomenon will not occur during pre-fixation, thus achieving the pre-fixation function and avoiding misalignment when connected through the flange.
[0030] Reference Figure 4The sealing device 3 includes a pipe 31 inserted into the connecting pipe 4. A ring 32 is fixedly connected inside the pipe 31. A groove 37 is formed on the inner wall of the connecting pipe 4. The ring 32 and the groove 37 prevent leakage when the pipe 31 is connected. A sliding groove 33 is formed inside the connecting pipe 4. A slider 34 is fixedly connected to the surface of the pipe 31. The sliding groove 33 and the slider 34 prevent the pipe 31 from rotating inside the connecting pipe 4, thus achieving a limiting function. A locking rod 35 is inserted into the surface of the connecting pipe 4. One end of the locking rod 35 is inserted into the inside of the pipe 31. The locking rod 35 fixes the pipe 31 inside the connecting pipe 4, thus achieving a fixing function. A spring 36 is fitted onto the surface of pipe 35. The two ends of the spring 36 are fixedly connected to one end of the clamp 35 on the surface of the connecting pipe 4. Under the action of the spring 36, the clamp 35 is inserted into the interior of pipe 31 in a self-locking manner. When hydrogen needs to be added, pipe 31 is inserted into the interior of connecting pipe 4. Under the action of ring 32 and groove 37, leakage will not occur when pipe 31 is connected. Under the action of sliding groove 33 and slider 34, pipe 31 will not rotate inside connecting pipe 4, thus achieving the limiting function. When ring 32 is inserted into groove 37, the clamp 35 is inserted into the interior of pipe 31 in a self-locking manner under the action of spring 36, thus achieving the sealing function.
[0031] Working principle: When the casting of valve 1 for hydrogen production is needed, valve 1 is installed in a suitable position via a flange. When hydrogen production is required, hydrogen gas is introduced into the connecting pipe 4 through the sealing device 3, thereby achieving the function of hydrogen production. When connecting valve 1, the protrusion 21 is inserted into the circular groove 24. Under the action of the retaining ring 22 and the annular groove 25, the protrusion 21 is locked inside the circular groove 24, thereby achieving a limiting function. Under the action of the retaining ball 23 and the retaining groove 28, the protrusion 21 is locked inside the circular groove 24, thereby achieving a fixing function. The rectangular groove 27 and the rectangular block 26... Under the action of the ring 32 and the groove 37, the pipe 31 will not rotate during pre-fixation, thus achieving the pre-fixation function and avoiding misalignment when connected by the flange. When hydrogen is needed, the pipe 31 is inserted into the inside of the connecting pipe 4. Under the action of the ring 32 and the groove 37, the pipe 31 will not leak when connected. Under the action of the sliding groove 33 and the slider 34, the pipe 31 will not rotate inside the connecting pipe 4, thus achieving the limiting function. After the ring 32 is inserted into the inside of the groove 37, under the action of the spring 36, the clamp 35 is inserted into the inside of the pipe 31 in a self-locking state, thus achieving the sealing function.
Claims
1. A valve casting for hydrogen production via hydrogenation, comprising a valve (1), characterized in that: The valve (1) is provided with a pre-fixing device (2) on its side, and a connecting pipe (4) is fixedly connected to the top of the valve (1). A sealing device (3) is provided inside the connecting pipe (4). An adjusting handle (5) is provided on the surface of the valve (1). The pre-fixing device (2) includes a circular groove (24) opened on the side of the valve (1). A protrusion (21) is fixedly connected to one end of the valve (1).
2. The valve casting for hydrogen production via hydrogenation according to claim 1, characterized in that: The circular groove (24) has a rectangular groove (27) inside, and the surface of the protrusion (21) is fixedly connected with a rectangular block (26).
3. The valve casting for hydrogen production via hydrogenation according to claim 2, characterized in that: The surface of the protrusion (21) is fixedly connected with a retaining ring (22), and the inside of the circular groove (24) is provided with an annular groove (25).
4. The valve casting for hydrogen production via hydrogenation according to claim 3, characterized in that: The surface of the protrusion (21) is fixedly connected with a ball (23), and the inner wall of the circular groove (24) is provided with a slot (28).
5. The valve casting for hydrogen production via hydrogenation according to claim 4, characterized in that: The sealing device (3) includes a pipe (31) inserted into the inside of the connecting pipe (4), a ring (32) is fixedly connected inside the pipe (31), and a groove (37) is provided on the inner wall of the connecting pipe (4).
6. The valve casting for hydrogen production via hydrogenation according to claim 5, characterized in that: The connecting pipe (4) has a groove (33) inside, and a slider (34) is fixedly connected to the surface of the pipe (31).
7. The valve casting for hydrogen production via hydrogenation according to claim 6, characterized in that: A clamp (35) is inserted into the surface of the connecting pipe (4), and one end of the clamp (35) is inserted into the interior of the pipe (31).
8. The valve casting for hydrogen production via hydrogenation according to claim 7, characterized in that: A spring (36) is fitted on the surface of the lever (35), and the two ends of the spring (36) are fixedly connected to one end of the lever (35) on the surface of the connecting tube (4).