High-temperature and high-viscosity medium self-cleaning anti-blocking regulating valve

Abstract

This application discloses a high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve, including a valve body, a regulating component, and two quick-release self-cleaning mechanisms. The regulating component is movably disposed within the valve body, and the two quick-release self-cleaning mechanisms are respectively disposed within the valve body. This embodiment of the high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve achieves self-cleaning of the inner wall of the flow channel by incorporating quick-release self-cleaning mechanisms within the valve body's flow channel. The kinetic energy generated by the medium flow drives the spiral scraper ring in the self-cleaning component to rotate, continuously scraping the inner wall of the flow channel. This effectively improves the problem of coking and clogging in traditional regulating valves under high-temperature, high-viscosity media conditions, and enhances the operational stability of the regulating valve.

Description

Technical Field

[0001] This application relates to the technical field of valves, and more particularly to a self-cleaning, anti-clogging regulating valve for high-temperature, high-viscosity media. Background Technology

[0002] A control valve is a type of valve used in industrial automation systems to regulate process parameters such as flow rate, pressure, and temperature of a medium by receiving control signals. It mainly consists of a valve body, valve core, valve seat, actuator, and internal components. Based on its structure and opening / closing method, it can be classified into straight-through single-seat control valves, straight-through double-seat control valves, sleeve control valves, diaphragm control valves, ball valves, butterfly valves, eccentric rotary control valves, etc. It is widely used for fluid regulation and control under different cleanliness, viscosity, temperature, and pressure conditions.

[0003] Currently, existing ball valve control valves, when conveying high-temperature, high-viscosity media such as asphalt, heavy oil, and polymer melts, experience a significant decrease in fluidity due to the high viscosity of the media and their susceptibility to oxidation and polymerization at high temperatures. This leads to easy accumulation of media in the valve body's flow channels and dead zones. With prolonged operation, the accumulated media gradually solidifies, cokes, and causes blockages. Traditional control valves generally lack self-cleaning capabilities. Once coking or blockage occurs, it is typically necessary to shut down the valve, disassemble it, and manually clean the coked material using tools (such as scrapers and wire brushes) or chemical cleaning agents. This significantly increases maintenance costs and workload, and severely impacts the continuity and stability of the production system. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide a self-cleaning and anti-clogging regulating valve for high-temperature and high-viscosity media. By setting a quick-release self-cleaning mechanism in the flow channel of the valve body, the valve achieves self-cleaning of the inner wall of the flow channel, which improves the problem of coking and clogging of traditional regulating valves under high-temperature and high-viscosity media conditions and improves the operational stability of the regulating valve.

[0006] To achieve the above objectives, the first aspect of this application provides a high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve, comprising a valve body, a regulating component, and two quick-release self-cleaning mechanisms. The regulating component is movably disposed within the valve body, and the two quick-release self-cleaning mechanisms are respectively disposed within the flow channel of the valve body and located on both sides of the regulating component. Each quick-release self-cleaning mechanism includes a self-cleaning component and a limiting component. The self-cleaning component is movably disposed within the flow channel of the valve body and fits against the inner wall of the flow channel. The limiting component is disposed at the end of the flow channel of the valve body away from the regulating component, and the self-cleaning component and the limiting component are detachably connected.

[0007] In addition, the high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve proposed in this application may also have the following additional technical features: In one embodiment of this application, the self-cleaning assembly includes a spiral scraper ring, a connecting ring, two support rings, and two retainers. The two support rings are respectively disposed at both ends of the spiral scraper ring, and the inner walls of the two support rings are provided with a plurality of equally spaced drive plates. The two retainers are respectively disposed on the corresponding drive plates. The connecting ring is rotatably disposed on one of the support rings, and the connecting ring is provided with equally spaced snap-fit ​​posts.

[0008] In one embodiment of this application, the spiral scraper ring is located within the flow channel of the valve body and is attached to the inner wall of the flow channel.

[0009] In one embodiment of this application, the limiting component includes a fixed ring, a limiting ring, and a plurality of positioning pins, wherein the limiting ring is rotatably disposed within the fixed ring, and an elastic element is sleeved on the outside of the limiting ring, and a plurality of equally spaced slots are provided on the inner wall of the limiting ring, and the plurality of positioning pins are equally spaced within the mounting slots of the valve body.

[0010] In one embodiment of this application, the fixing ring is disposed in the mounting groove, and the two ends of the elastic member abut against the limiting ring and the fixing ring, respectively.

[0011] In one embodiment of this application, the connecting ring is detachably disposed within the limiting ring, the plurality of snap-fit ​​pins are snapped into the corresponding snap-fit ​​slots, and the plurality of positioning pins are inserted into the connecting ring.

[0012] In one embodiment of this application, the adjusting assembly includes a valve core, a pressure seat, a valve stem, and an adjusting handwheel, wherein the adjusting handwheel is disposed at the top end of the valve stem, the valve core is disposed at the bottom end of the valve stem, the pressure seat is detachably disposed in the valve body and disposed outside the valve stem, and the valve core is located in the valve body and fits against the valve seat in the valve body.

[0013] Compared with the prior art, the technical solution provided in this application has the following beneficial effects: This application achieves self-cleaning by setting a quick-release self-cleaning mechanism in the flow channel of the valve body. The kinetic energy generated by the flow of the medium drives the spiral scraper ring in the self-cleaning component to rotate, continuously scraping the inner wall of the flow channel of the valve body. This effectively improves the problem of coking and clogging of traditional control valves under high temperature and high viscosity medium conditions, and improves the operational stability of the control valve. At the same time, the self-cleaning component adopts a quick-release structure, making the disassembly, maintenance and replacement of the self-cleaning component more convenient and efficient.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve according to this application; Figure 2 This is a schematic diagram of the adjustment component structure in this application; Figure 3 This is a schematic diagram showing the installation position of the spiral scraper ring in this application; Figure 4 This is a schematic diagram of the quick-release self-cleaning mechanism in this application; Figure 5 This is a schematic diagram of the self-cleaning component structure in this application; Figure 6 This is a schematic diagram of the connection between the connecting ring and the limiting ring in this application; Figure 7 This is a schematic diagram of the limiting component structure in this application; Figure 8 This is a schematic diagram showing the installation location of the positioning post in this application; Figure 9 For this application Figure 7 Enlarged view of area A in the image.

[0016] As shown in the figure: 1. Valve body; 2. Adjusting assembly; 21. Valve core; 22. Pressure seat; 23. Valve stem; 24. Adjusting handwheel; 3. Self-cleaning component; 31. Spiral scraper ring; 32. Connecting ring; 33. Support ring; 34. Cage; 35. Drive plate; 36. Snap-fit ​​post; 4. Limiting component; 41. Fixing ring; 42. Elastic element; 43. Limiting ring; 44. Slot; 45. Positioning post; 5. Mounting slot. Detailed Implementation

[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0018] The following description, in conjunction with the accompanying drawings, describes a high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve according to an embodiment of this application.

[0019] This application provides a high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve, which can be applied to high-temperature, high-viscosity media transportation scenarios, such as asphalt pipeline transportation in the petrochemical industry, coal tar processing in the coal chemical industry, and high-viscosity sauce production in the food industry. The regulating valve has a quick-release self-cleaning mechanism in the valve body flow channel, which can remove viscous media and coking materials attached to the inner wall of the flow channel in real time during the media flow process, effectively solving the clogging problem caused by media retention and accumulation in traditional regulating valves.

[0020] like Figure 1-9 As shown in the figure, a high-temperature and high-viscosity medium self-cleaning anti-clogging regulating valve according to an embodiment of this application includes a valve body 1, a regulating component 2 and two quick-release self-cleaning mechanisms. The regulating component 2 is movably disposed inside the valve body 1, and the two quick-release self-cleaning mechanisms are respectively disposed in the flow channel of the valve body 1 and located on both sides of the regulating component 2.

[0021] The regulating assembly 2 includes a valve core 21, a pressure seat 22, a valve stem 23, and an regulating handwheel 24. The regulating handwheel 24 is located at the top of the valve stem 23, the valve core 21 is located at the bottom of the valve stem 23, the pressure seat 22 is detachably disposed inside the valve body 1 and outside the valve stem 23, and the valve core 21 is located inside the valve body 1 and fits against the valve seat inside the valve body 1.

[0022] It should be noted that the valve body 1 is equipped with a valve seat, which cooperates with the valve core 21 to form a sealing pair. By rotating the adjusting handwheel 24, the valve stem 23 is driven to move axially, thereby controlling the opening between the valve core 21 and the valve seat, so as to achieve precise regulation of the flow rate of high temperature and high viscosity media.

[0023] In addition, the flow channel inside the valve body 1 is a smooth cylindrical shape and is polished, which reduces the flow resistance of the medium in the flow channel and avoids the problem of medium stagnation caused by abrupt changes in the flow channel cross-section or the presence of sharp corners. Flange interfaces for connecting to pipelines are provided at both ends of the valve body 1 to achieve a sealed connection with external delivery pipelines.

[0024] Each quick-release self-cleaning mechanism includes a self-cleaning component 3 and a limiting component 4. The self-cleaning component 3 is movably disposed in the flow channel of the valve body 1 and fits against the inner wall of the flow channel. The limiting component 4 is disposed at the end of the flow channel of the valve body 1 away from the adjusting component 2, and the self-cleaning component 3 and the limiting component 4 are detachably connected.

[0025] Understandably, the two quick-release self-cleaning mechanisms are respectively located at the inlet and outlet ends of the flow channel of valve body 1, forming a bidirectional cleaning coverage of the medium flow path.

[0026] When a high-temperature, high-viscosity medium flows in the flow channel of valve body 1, the kinetic energy of the medium will drive the self-cleaning component 3 to rotate along the inner wall of the flow channel, thereby continuously scraping off the viscous medium adhering to the inner wall. The scraped-off medium is discharged along with the main fluid, effectively preventing the medium from stagnating and accumulating in the flow channel.

[0027] In addition, the self-cleaning component 3 can be stably installed in the valve body 1 through the limiting component 4, and the snap-fit ​​installation method makes it easy to quickly disassemble and replace the self-cleaning component 3, which is convenient for regular maintenance or cleaning.

[0028] In one embodiment of this application, such as Figures 4-5 As shown, the self-cleaning assembly 3 includes a spiral scraper ring 31, a connecting ring 32, two support rings 33, and two retainers 34. The two support rings 33 are respectively disposed at both ends of the spiral scraper ring 31, and the inner walls of the two support rings 33 are provided with multiple equally spaced drive plates 35. The two retainers 34 are respectively disposed on the corresponding drive plates 35. The connecting ring 32 is rotatably disposed on one of the support rings 33, and the connecting ring 32 is provided with equally spaced snap-fit ​​posts 36.

[0029] The spiral scraper ring 31 is located inside the flow channel of the valve body 1 and fits against the inner wall of the flow channel.

[0030] It should be noted that the support ring 33 can support and fix both ends of the spiral scraper ring 31, ensuring that the spiral scraper ring 31 maintains structural stability during rotation. The retainer 34 is fixedly connected to the drive plate 35, which can enhance the strength of the drive plate 35 and prevent the drive plate 35 from deforming due to centrifugal force during high-speed rotation.

[0031] In addition, the drive plate 35 is inclined. When the medium flows through the support ring 33, the impact force of the medium acts on the drive plate 35, thereby driving the support ring 33 and the spiral scraper ring 31 to rotate around the flow channel axis. The connecting ring 32 is rotatably connected to the support ring 33 through a bearing. When the support ring 33 drives the spiral scraper ring 31 to rotate, the connecting ring 32 can remain relatively stationary so as to stably cooperate with the limiting component 4.

[0032] Specifically, when a high-temperature, high-viscosity medium flows through the flow channel of valve body 1, the medium impacts the drive plate 35, causing the support ring 33 to drive the spiral scraper ring 31 to rotate synchronously. The outer edge of the spiral scraper ring 31 is in contact with the inner wall of the flow channel, and its spiral structure continuously scrapes the viscous medium attached to the inner wall during the rotation process. The scraped medium is discharged with the main fluid under the action of the spiral thrust, thereby realizing the dynamic self-cleaning of the inner wall of the flow channel of valve body 1.

[0033] It should be noted that the flow rate of the high-temperature and high-viscosity medium is not less than 0.8 m / s, so as to ensure that the kinetic energy generated by the flow of the medium can effectively drive the drive plate 35 to drive the spiral scraper ring 31 to rotate stably.

[0034] Each component of the self-cleaning assembly 3 is made of heat-resistant alloy material, such as nickel-based high-temperature alloy or cobalt-chromium-tungsten alloy, which enables each structure to have excellent high-temperature resistance and wear resistance.

[0035] In one embodiment of this application, such as Figures 6-9 As shown, the limiting component 4 includes a fixed ring 41, a limiting ring 43, and multiple positioning pins 45. The limiting ring 43 is rotatably disposed within the fixed ring 41, and an elastic element 42 is sleeved on the outside of the limiting ring 43. Multiple equally spaced slots 44 are provided on the inner wall of the limiting ring 43. The multiple positioning pins 45 are equally spaced within the mounting groove 5 of the valve body 1. The fixed ring 41 is disposed within the mounting groove 5. The two ends of the elastic element 42 abut against the limiting ring 43 and the fixed ring 41, respectively.

[0036] It should be noted that the elastic element 42 is a torsion spring, with its two ends embedded in the positioning groove of the fixing ring 41 and the groove of the limiting ring 43, respectively. When the limiting ring 43 is rotated under force, the torsion spring generates elastic deformation and stores the reset torque.

[0037] Furthermore, the retaining ring 41 is fixedly connected to the mounting groove 5 of the valve body 1 by bolts, and the top of the positioning pin 45 is tapered to facilitate insertion with the connecting ring 32. The connecting ring 32 has a through hole that matches the size of the positioning pin 45. When the connecting ring 32 is inserted into the limiting ring 43, the positioning pin 45 can be smoothly inserted into the through hole to achieve radial positioning and prevent the connecting ring 32 from rotating circumferentially.

[0038] The connecting ring 32 is detachably disposed within the limiting ring 43, and multiple snap-fit ​​pins 36 are snapped into the corresponding slots 44, while multiple positioning pins 45 are inserted into the connecting ring 32.

[0039] It should be noted that the slot 44 is divided into an inclined guide section and a snap-fit ​​section. When the connecting ring 32 is inserted into the limiting ring 43, the snap-fit ​​post 36 first slides along the inclined guide section. Since the circumferential position of the connecting ring 32 is limited by the positioning post 45, the limiting ring 43 rotates against the torsional force of the elastic element 42 under the action of the inclined guide section. When the snap-fit ​​post 36 slides to the snap-fit ​​section, the elastic element 42 releases torque to drive the limiting ring 43 to reset, so that the snap-fit ​​post 36 and the snap-fit ​​section form a tight engagement. At this time, the self-cleaning component 3 and the limiting component 4 are quickly assembled.

[0040] During disassembly, simply rotate the limiting ring 43 to compress the elastic element 42, causing the locking post 36 to disengage from the locking section, and then the connecting ring 32 can be extracted.

[0041] Compared with traditional control valve cleaning methods, this application achieves dynamic cleaning of the valve body flow channel by setting a quick-release self-cleaning mechanism. Moreover, the self-cleaning component 3 is designed to be detachable, which facilitates quick replacement and significantly shortens downtime for maintenance.

[0042] It should be noted that the limiting ring 43 is provided with a retaining groove (not shown in the figure), which makes it easy for the operator to disassemble the limiting ring 43 by using tools or manually rotating it.

[0043] Specifically, in actual use, the valve body 1 is connected to the external high-temperature and high-viscosity medium conveying pipeline through the flange interface to ensure the sealing performance of the connection.

[0044] When it is necessary to adjust the flow rate of the medium, the operator rotates the adjusting handwheel 24, which drives the valve stem 23 to rotate, thereby changing the opening between the valve core 21 and the valve seat, thus realizing the control of the flow rate of the medium.

[0045] During the media transport process, the high-temperature and high-viscosity media flows through the flow channel of the valve body 1 and impacts the drive plate 35 in the self-cleaning component 3. Under the impact force of the media, the drive plate 35 drives the support ring 33 to rotate, and the support ring 33 drives the spiral scraper ring 31 to rotate synchronously. When the spiral scraper ring 31 rotates, it continuously scrapes off the viscous media and any coking material that may form on the inner wall of the flow channel. The scraped-off media flows forward with the main fluid under the action of the spiral thrust and is discharged from the valve body, thus achieving self-cleaning of the flow channel of the valve body 1.

[0046] When maintenance or replacement of the self-cleaning component 3 is required, first remove the valve body 1 from the delivery pipeline, then rotate the limiting ring 43 to disengage the locking post 36 from the locking section of the locking groove 44. At this time, the entire self-cleaning component 3 can be pulled out from the flow channel of the valve body 1. After disassembly, clean or replace the new self-cleaning component 3, and then reinstall it in the reverse order.

[0047] In summary, the high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve of this application embodiment, by setting a quick-release self-cleaning mechanism in the flow channel of the valve body, uses the kinetic energy generated by the flow of the medium to drive the spiral scraper ring in the self-cleaning component to rotate, continuously scraping the inner wall of the flow channel of the valve body, thereby achieving self-cleaning of the inner wall of the flow channel. This effectively improves the problem of coking and clogging of traditional regulating valves under high-temperature, high-viscosity media conditions, and improves the operational stability of the regulating valve. At the same time, the self-cleaning component adopts a quick-release structure, making the disassembly, maintenance and replacement of the self-cleaning component more convenient and efficient.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A high temperature, high viscosity medium self-cleaning anti-jamming control valve, characterized in that, It includes a valve body, an adjustment assembly, and two quick-release self-cleaning mechanisms, among which, The regulating component is movably disposed within the valve body; The two quick-release self-cleaning mechanisms are respectively disposed in the flow channel of the valve body and located on both sides of the adjustment assembly; Each of the aforementioned quick-release self-cleaning mechanisms includes a self-cleaning component and a limiting component, wherein... The self-cleaning component is movably disposed within the flow channel of the valve body and is in contact with the inner wall of the flow channel; The limiting component is located at the end of the valve body flow channel away from the adjusting component, and the self-cleaning component is detachably connected to the limiting component.

2. The self-cleaning anti-clogging control valve of claim 1, wherein, The self-cleaning assembly includes a spiral scraper ring, a connecting ring, two support rings, and two retainers, wherein... The two support rings are respectively disposed at both ends of the spiral scraper ring, and the inner walls of the two support rings are provided with a plurality of equally spaced drive plates. The two cages are respectively disposed on the corresponding drive plates; The connecting ring is rotatably mounted on one of the supporting rings, and the connecting ring is provided with equidistantly distributed snap-fit ​​posts.

3. The high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve according to claim 2, characterized in that, The spiral scraper ring is located inside the flow channel of the valve body and is attached to the inner wall of the flow channel.

4. The high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve according to claim 2, characterized in that, The limiting assembly includes a fixed ring, a limiting ring, and multiple positioning posts, wherein... The limiting ring is rotatably disposed within the fixed ring, and an elastic element is sleeved on the outside of the limiting ring; The inner wall of the limiting ring is provided with multiple equally spaced slots; Multiple positioning pins are equidistantly arranged in the mounting groove of the valve body.

5. The high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve according to claim 4, characterized in that, The fixing ring is disposed within the mounting groove; The two ends of the elastic element abut against the limiting ring and the fixing ring, respectively.

6. The high-temperature, high-viscosity medium self-cleaning anti-clogging regulating valve according to claim 5, characterized in that, The connecting ring is detachably disposed within the limiting ring; The plurality of the snap-fit ​​pins are respectively snapped into the corresponding snap-fit ​​slots; The plurality of positioning pins are respectively inserted into the connecting ring.

7. The high-temperature, high-viscosity media self-cleaning anti-clogging regulating valve according to claim 1, characterized in that, The adjusting assembly includes a valve core, a pressure seat, a valve stem, and an adjusting handwheel, wherein, The adjusting handwheel is located at the top of the valve stem; The valve core is disposed at the bottom end of the valve stem; The pressure seat is detachably disposed within the valve body and located outside the valve stem; The valve core is located inside the valve body and is in contact with the valve seat inside the valve body.

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