High-temperature carbon discharge valve

Abstract

The utility model relates to the technical field of new energy and energy conservation, and discloses a high-temperature carbon discharge valve which comprises a valve body, a ball body is arranged in the valve body, a pre-tightening valve seat is movably installed on the outer surface of the ball body, and a belleville spring is fixedly installed on the back face of the pre-tightening valve seat. Compared with a traditional carbon valve, the carbon valve has the advantages that the manufacturing process is simplified and the sealing reliability is obviously improved through the matching among the valve rod, the first bearing and the second bearing, and compared with a traditional plane sealing mode, the carbon valve has obvious advantages, the positioning technology of the first bearing and the second bearing is creatively applied to the valve rod part, and the sealing reliability is improved. Compared with the prior art, the high-neck stuffing box has the advantages that accurate centering of the valve rod, the high-neck stuffing box and the stuffing is guaranteed, abrasion is effectively reduced, the service life of the stuffing is greatly prolonged, in addition, the radiating fins are particularly additionally arranged on the high-neck stuffing box, it is guaranteed that the valve can meet the I SO15848 low-dissipation standard, and the practical stability and operation safety of the valve are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy and energy saving, and more specifically, to a high-temperature carbon exhaust valve. Background Art

[0002] The high-temperature carbon exhaust valve is a specialized valve designed specifically for handling high-temperature, carbon-containing media. It boasts high-temperature adaptability and stable operation in extreme temperatures. Its unique flow path and sealing design effectively prevent carbon particle accumulation and blockage, ensuring smooth flow of the media. This valve is widely used in the energy, chemical, and metallurgical industries to meet specialized operating requirements. Furthermore, it is manufactured to high standards and utilizes advanced sealing technology to ensure safe and reliable operation, preventing media leakage and protecting the environment and personnel. Conventional high-temperature carbon exhaust valves are prone to leakage in high-temperature, high-pressure, and carbon-containing media, and the sealing material may degrade due to its incompatibility with high-temperature environments. Critical components such as the valve stem and stuffing box are subject to severe wear under harsh operating conditions. Improper stuffing box design, in particular, can accelerate wear and shorten service life. Furthermore, poor heat dissipation in the valve can lead to excessively high internal temperatures, impacting performance and service life. In particular, improper temperature control in the stuffing box can easily lead to packing failure. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a high-temperature carbon exhaust valve, which has the advantage of ensuring stable operation of the valve.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-temperature carbon exhaust valve, comprising a valve body, a sphere is provided inside the valve body, a pre-tightened valve seat is movably mounted on the outer surface of the sphere, a disc spring is fixedly mounted on the back of the pre-tightened valve seat, a valve seat is provided at the bottom of the sphere, a valve seat pressure ring is fixedly mounted on the outer surface of the valve seat, a valve cover is fixedly mounted on the outer surface of the valve body, a valve stem is mounted in the axial hole on the valve body, the lower flat portion of the valve stem is inserted into the axial hole on the sphere, a thrust pad is fixedly mounted on the top of the valve stem, and the thrust pads have two shapes of the same size.

[0005] As an optimal technical solution of the present invention, a high-necked stuffing box is installed on the outside of the valve stem, the bottom of the high-necked stuffing box is fixedly connected to the valve body, and a spiral wound gasket is also provided inside the ring groove at the bottom of the high-necked stuffing box. Bearing 1, bearing 2, a stuffing pad, a stuffing sleeve with a bearing inside the stuffing, and a stuffing pressure plate are respectively installed inside the upper shaft hole of the high-necked stuffing box from the inside to the outside. Bearing 1 is movably installed on the outer surface of the high-necked stuffing box, and gasket 1, gasket 2 and spiral wound gasket 2 are designed between the high-necked stuffing box and the valve stem. A dust ring is provided inside the high-necked stuffing box, and an actuator is fixedly installed on the top of the high-necked stuffing box.

[0006] As an optimal technical solution of the utility model,

[0007] A hook is fixedly installed on the outer side of the top of the actuator, a connecting plate is fixedly installed on the outer surface of the actuator, a pipe is movably installed on one end of the connecting plate, and bolts are movably installed between the pipe and the inside of the connecting plate.

[0008] As a preferred technical solution of the present invention, a hook is fixedly installed on the top of the pipe, and the hook is in a triangular shape.

[0009] As a preferred technical solution of the present invention, the diameter of the valve seat is equal to the outer diameter of the valve stem, and the interior of the valve seat adopts a smooth design.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] Compared with the traditional carbon valve, the utility model simplifies the manufacturing process through the coordination between the valve stem, bearing one and bearing two, and significantly improves the sealing reliability. Compared with the traditional flat sealing method, it has obvious advantages. The valve stem part innovatively uses the positioning technology of bearing one and bearing two to ensure that the valve stem, high-neck stuffing box and packing are accurately aligned, effectively reducing wear and significantly extending the service life of the packing. In addition, a heat sink is specially added to the high-neck stuffing box. This ingenious design allows the temperature of the packing part to be controlled at a safe temperature below 400 degrees, thereby ensuring that the valve can meet the ISO15848 low emission standard and significantly improving the practical stability and operational safety of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the partial cross-sectional structure of the valve body of the utility model;

[0013] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0014] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0015] Figure 4 For this utility model Figure 1 The enlarged structural diagram at C in the middle;

[0016] Figure 5 For this utility model Figure 1 Enlarged structural diagram at point D in the middle.

[0017] In the figure: 1. Valve body; 2. Valve cover; 3. Ball; 4. Preloaded valve seat; 5. Valve seat; 6. Disc spring; 7. Valve seat pressure ring; 8. Valve stem; 9. High-neck stuffing box; 10. Packing gland; 11. Packing pressure plate; 12. Gasket 1; 13. Spiral wound gasket 1; 14. Gasket 2; 15. Spiral wound gasket 2; 16. Thrust pad; 17. Bearing 1; 18. Packing pad; 19. Packing; 20. Bearing 2; 21. Dust ring; 22. Actuator; 23. Hook; 24. Pipe; 25. Connecting plate; 26. Bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] like Figures 1 to 5 As shown, the utility model provides a high-temperature carbon exhaust valve, including a valve body 1, a pre-tightening valve seat 4 is movably mounted on the outer surface of the ball 3, a disc spring 6 is fixedly mounted on the back of the pre-tightening valve seat 4, a valve seat 5 is provided at the bottom of the ball 3, a valve seat pressure ring 7 is fixedly mounted on the outer surface of the valve seat 5, a valve cover 2 is fixedly mounted on the outer surface of the valve body 1, a valve stem 8 is mounted in the upper axial hole of the valve body 1, the lower flat part of the valve stem 8 is inserted into the inner part of the upper axial hole of the ball 3, a thrust pad 16 is fixedly mounted on the top of the valve stem 8, and the thrust pad 16 presents two shapes of the same size.

[0020] The staff turns on the actuator 22 and the opening and closing torque drives the valve stem to rotate to open and close the valve. The lower part of the valve stem 8 is designed to be flat and inserted into the ball groove of the ball 3 to transmit the switching torque. The upstream of the ball 3 is tightly matched with the spherical surface of the pre-tightened valve seat 4. The disc spring 6 provides pre-tightening force to ensure sealing. The spherical surface of the valve seat 5 downstream of the ball 3 cooperates with the ball 3 to form another seal. The back conical surface of the valve seat 5 coincides with the conical surface of the valve cover. Cobalt-based hard alloy is welded and ground to improve wear resistance and sealing. The valve seat pressure ring 7 is installed on the outer ring of the valve seat 5. The valve cover 2 and the valve body 1 are compressed by fasteners Gasket 12 forms a reliable seal. Gasket 2 14, spiral wound gasket 13 and spiral wound gasket 2 15 are designed between the high-necked stuffing box 9 and the valve body 1. The seal is compressed by fasteners. A locating pin is installed between the two flanges to ensure accurate positioning. Bearing 17, bearing 2 20, stuffing pad 18, stuffing pressure plate 11 and stuffing sleeve 10 components are installed in the shaft hole. The packing 19 compression seal is tightened by the disc spring group bolt. A heat sink is provided on the upper part of the high-necked stuffing box 9. The dust ring 21 is used to reduce dust from entering the valve stem 8 valve to ensure that the stuffing pad 18 is at a safe temperature and to ensure stable operation of the valve.

[0021] The actuator 22 generates opening and closing torque, driving the valve stem 8 to rotate, thereby opening or closing the valve. The flattened lower portion of the valve stem inserts into the ball groove of the ball 3, effectively transmitting torque. The ball's upstream portion tightly fits the preloaded valve seat 4, and the disc spring 6 provides preload force to ensure sealing. The spherical surface of the valve seat 5 downstream of the ball cooperates with the ball to form a secondary seal. The back conical surface of the valve seat coincides with the conical surface of the valve cover. Cobalt-based cemented carbide is welded and ground, significantly improving wear resistance and sealing. The valve seat outer ring is installed with a valve seat pressure ring 7. The valve cover 2 and valve body 1 are sealed by fasteners compressing gasket 12. Gasket No. 2 14, spiral wound gasket No. 13, and spiral wound gasket No. 2 15 are designed between the high-necked stuffing box 9 and the valve body. Sealing is achieved through compression with fasteners. Locating pins between the two flanges ensure accurate positioning. Bearings, packing pads 18, packing pressure plates 11, and packing sleeves 10 are installed in the shaft hole. The packing 19 compression seal is tightened by disc spring bolts. Compared with traditional carbon valves, the coordination between the valve stem 8, bearing No. 1 17, and bearing No. 2 20 simplifies the manufacturing process and significantly improves sealing reliability. Compared with traditional flat sealing methods, it has obvious advantages. The valve stem 8 innovatively utilizes bearing No. 1 17 and bearing No. 2 20 positioning technology to ensure precise alignment of the valve stem 8, high-necked stuffing box 9, and packing 19, effectively reducing wear and significantly extending the service life of the packing 19. In addition, heat sinks are specially added to the high-necked stuffing box 9. This ingenious design keeps the temperature of the packing 19 below a safe 400°C, ensuring that the valve meets the ISO15848 low-emission standard and significantly improving the valve's practical stability and operational safety.

[0022] Among them, a high-necked stuffing box 9 is installed on the outside of the valve stem 8, and the bottom of the high-necked stuffing box 9 is fixedly connected to the valve body 1. A spiral wound gasket 13 is also provided inside the ring groove at the bottom of the high-necked stuffing box 9. The upper shaft hole of the high-necked stuffing box 9 is respectively installed with bearing 17, bearing 20, stuffing pad 18, and stuffing 19 from the inside to the outside. The packing sleeve 10 and the packing pressure plate 11 of the bearing are provided inside the packing 19. A bearing 17 is movably installed on the outer surface of the high-necked stuffing box 9. Gasket 12, gasket 2 14 and spiral wound gasket 2 15 are designed between the high-necked stuffing box 9 and the valve stem 8. A dust ring 21 is provided inside the high-necked stuffing box 9, and an actuator 22 is fixedly installed on the top of the high-necked stuffing box 9.

[0023] Among them, a hook 23 is fixedly installed on the outer side of the top of the actuator 22, a connecting plate 25 is fixedly installed on the outer surface of the actuator 22, a pipe 24 is movably installed at one end of the connecting plate 25, and bolts 26 are movably installed inside the pipe 24 and the connecting plate 25.

[0024] The staff slowly screws the bolt 26 into the pipe 24 and the connecting plate 25, and limits and fixes the pipe 24 and the actuator 22 through the connecting plate 25, ensuring the stability of the actuator 22 and the pipe 24 during use, thereby improving the use efficiency of the actuator 22 and the pipe 24.

[0025] A hook 23 is fixedly installed on the top of the pipe 24, and the hook 23 is in a triangular shape.

[0026] Since the hook 23 is in a triangular shape at the top of the pipe 24, the stability and safety of the pipe 24 are ensured, loosening or falling off due to high temperature, vibration or pressure is prevented, and the normal operation of the valve and stable medium transportation are guaranteed. At the same time, the design of the hook 23 simplifies the installation and maintenance process, reduces costs, and can effectively reduce the thermal expansion stress of the pipeline, thereby improving durability and reliability.

[0027] The diameter of the valve seat 5 is equal to the outer diameter of the valve stem 8 , and the interior of the valve seat 5 is designed to be smooth.

[0028] Since the diameter of the valve seat 5 is equal to the outer diameter of the valve stem 8, and the interior of the valve seat 5 adopts a smooth design, it ensures that the valve stem 8 and the valve seat 5 fit closely together, improves the valve sealing performance, and prevents medium leakage. At the same time, the smooth design reduces friction resistance, makes the valve operation smooth, reduces energy consumption, and improves efficiency. The smooth surface is also easy to clean and maintain, reduces blockage failures, and extends the service life of the valve.

[0029] The working principle and use process of this utility model:

[0030] The staff turns on the actuator 22 and the opening and closing torque drives the valve stem to rotate to open and close the valve. The lower part of the valve stem 8 is designed to be flat and inserted into the ball groove of the ball 3 to transmit the switching torque. The upstream of the ball 3 is tightly matched with the spherical surface of the pre-tightened valve seat 4. The disc spring 6 provides pre-tightening force to ensure sealing. The spherical surface of the valve seat 5 downstream of the ball 3 cooperates with the ball 3 to form another seal. The back conical surface of the valve seat 5 coincides with the conical surface of the valve cover. Cobalt-based hard alloy is welded and ground to improve wear resistance and sealing. The valve seat pressure ring 7 is installed on the outer ring of the valve seat 5. The valve cover 2 and the valve body 1 are compressed by fasteners Gasket 12 forms a reliable seal. Gasket 2 14, spiral wound gasket 13 and spiral wound gasket 2 15 are designed between the high-necked stuffing box 9 and the valve body 1. The seal is compressed by fasteners. A locating pin is installed between the two flanges to ensure accurate positioning. Bearing 17, bearing 2 20, stuffing pad 18, stuffing pressure plate 11 and stuffing sleeve 10 components are installed in the shaft hole. The packing 19 compression seal is tightened by the disc spring group bolt. A heat sink is provided on the upper part of the high-necked stuffing box 9. The dust ring 21 is used to reduce dust from entering the valve stem 8 valve to ensure that the stuffing pad 18 is at a safe temperature and to ensure stable operation of the valve.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature carbon exhaust valve, comprising a valve body (1), characterized in that: A sphere (3) is provided inside the valve body (1), a pre-tightening valve seat (4) is movably mounted on the outer surface of the sphere (3), a disc spring (6) is fixedly mounted on the back of the pre-tightening valve seat (4), a valve seat (5) is provided at the bottom of the sphere (3), a valve seat pressure ring (7) is fixedly mounted on the outer surface of the valve seat (5), a valve cover (2) is fixedly mounted on the outer surface of the valve body (1), a valve stem (8) is mounted in the upper shaft hole of the valve body (1), the lower flat portion of the valve stem (8) is inserted into the upper shaft hole of the sphere (3), a thrust pad (16) is fixedly mounted on the top of the valve stem (8), and the thrust pad (16) presents two shapes of the same size.

2. A high-temperature carbon removal valve according to claim 1, characterized in that: A high-necked stuffing box (9) is installed on the outside of the valve stem (8), and the bottom of the high-necked stuffing box (9) is fixedly connected to the valve body (1). A spiral wound gasket (13) is also provided inside the annular groove at the bottom of the high-necked stuffing box (9). Bearing 1 (17), bearing 2 (20), a stuffing pad (18), and a stuffing sleeve (10) and a stuffing pressure plate (11) of the bearing are installed inside the upper shaft hole of the high-necked stuffing box (9) from the inside to the outside. Bearing 1 (17) is movably installed on the outer surface of the high-necked stuffing box (9). Gasket 1 (12), gasket 2 (14) and spiral wound gasket 2 (15) are designed between the high-necked stuffing box (9) and the valve stem (8). A dust ring (21) is provided inside the high-necked stuffing box (9), and an actuator (22) is fixedly installed on the top of the high-necked stuffing box (9).

3. A high-temperature carbon exhaust valve according to claim 2, characterized in that: A hook (23) is fixedly installed on the outer side of the top of the actuator (22), a connecting plate (25) is fixedly installed on the outer surface of the actuator (22), a pipe (24) is movably installed on one end of the connecting plate (25), and a bolt (26) is movably installed inside the pipe (24) and the connecting plate (25).

4. A high-temperature carbon exhaust valve according to claim 3, characterized in that: A hook (23) is fixedly mounted on the top of the pipe (24), and the hook (23) is in a triangular shape.

5. The high-temperature carbon exhaust valve according to claim 1, characterized in that: The diameter of the valve seat (5) is equal to the outer diameter of the valve stem (8), and the interior of the valve seat (5) adopts a smooth surface design.

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