Heavy penetration type crystallization-resistant long gate valve
By designing a heavy-duty penetration-type anti-crystallization long slide valve, the problem of poor sealing in existing technologies is solved through sealing components, anti-crystallization components, and purging components. This achieves a good sealing effect, effectively preventing media leakage between the valve plate and the valve seat, extending the service life of the sealing ring, and timely cleaning of impurities to prevent crystal formation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-04-03
AI Technical Summary
During use, existing slide gate valves suffer from wear on the sealing surface due to the adhesion of impurities, which affects the sealing performance. Furthermore, solutes in the fluid precipitate and crystallize, which is particularly noticeable in areas with slow flow rates.
A heavy-duty penetrating anti-crystallization long slide valve was designed, comprising a sealing component, an anti-crystallization component, and a purging and unblocking component. The valve plate surface is cleaned and sealed through structures such as sealing rings, extrusion wedges, and positioning scrapers, and cleaning is performed using an electrically controlled air pump and a gas flow channel.
It effectively prevents the sealing effect between the valve plate and the valve seat, avoids media leakage, extends the life of the sealing ring, maintains the good sealing performance of the valve, and cleans impurities in time to prevent crystal formation.
Smart Images
Figure CN121782385A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of gate valve technology, specifically a heavy-duty, penetration-type, anti-crystallization long gate valve. Background Technology
[0002] A slide gate valve, also known as a manual knife gate valve, is a type of valve in which the gate and the valve seat are always in close contact for sealing. Its principle is that there is a circular opening the size of the passage on the gate. By opening and closing the gate, the circular opening on the gate can completely separate from and match the passage.
[0003] In actual use, impurities in the fluid used by the slide gate valve will adhere to the surface of the valve plate. As the slide gate valve is used, the adhesion of impurities will increase the wear of the sealing surface between the valve plate and the valve seat, thereby affecting the sealing performance of the slide gate valve. In addition, when the solute in the fluid flows through the surface of the valve plate, the continuous contact with the surface of the valve plate will cause some of the solute in the fluid to precipitate out and form crystals that adhere to the surface of the valve plate. This situation is particularly obvious in areas where the fluid flow rate is slow, such as dead corners where the valve plate and the valve body are connected.
[0004] To address this issue, we propose a heavy-duty, penetration-type, anti-crystallization long slide valve. Summary of the Invention
[0005] Technical problems to be solved In view of this, and in view of the shortcomings of the prior art, the present invention provides a heavy-duty penetration-type anti-crystallization long insert valve to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a heavy-duty penetrating anti-crystallization long slide valve, comprising a heavy-duty valve body, a driving device fixedly installed on the top of the heavy-duty valve body, a valve plate slidably installed inside the heavy-duty valve body, a flange installed in the middle of the heavy-duty valve body, a sealing cavity opened inside the heavy-duty valve body, a slide rail fixedly installed inside the heavy-duty valve body, a valve plate slidably installed on the surface of the slide rail, and further comprising a sealing component, an anti-crystallization component, and a purging and unblocking component disposed inside the heavy-duty valve body; The sealing assembly includes a sealing ring, a rigid spring, a compression wedge, and a positioning spring; The sealing ring is slidably connected to the surface of the sealing cavity inside the heavy-duty valve body; A rigid spring circumferential array is fixedly installed inside the sealing ring; The compression wedge is fitted onto the surface of one side of the rigid spring; The positioning springs are fixedly connected to the outer surface of the sealing ring and the cavity surface of the sealing cavity in a circular array. Anti-crystallization components are used to scrape away residues on the valve plate surface to prevent crystallization. The anti-crystallization component includes a positioning plate, a positioning scraper, a bottom snap-fit plate, and a connecting spring; The heavy-duty valve body has an internal volume chamber, and positioning plates are symmetrically fixedly installed on the side wall of the volume chamber. The positioning scraper is fitted onto the bottom surface of the positioning plate; The bottom snap-fit plates are symmetrically and fixedly installed on the bottom cavity wall of the volumetric cavity; The connecting spring is fixedly connected to the side wall surface of the positioning scraper; The purging and unblocking assembly works in conjunction with the sealing assembly to blow out gas to clean the surface of the valve plate as it moves.
[0007] Preferably, the sealing assembly further includes a locking block, a driven wedge, a limiting block, a driven hemisphere, and a compression hemisphere; The locking blocks are symmetrically slidably installed on both sides of the valve plate; The driven wedge is engaged with the surface of the corresponding card block; The limit blocks are symmetrically arranged and vertically slidably connected to the sealing cavity surface of the heavy-duty valve body; The driven hemisphere is vertically and equidistantly fixed to the surface of the driven wedge block at the end away from the locking block; The outer surfaces on both sides of the valve plate are vertically and equidistantly connected with extruded hemispheres.
[0008] Preferably, the anti-crystallization component further includes a roller, a vibrating rod, and a return spring; The roller is rotatably mounted inside the positioning plate on the side near the valve plate. The positioning scraper has mounting slots that are equidistantly spaced inside, and the vibrating rods are all slidably installed inside the mounting slots; The reset spring is sleeved and installed on the outer surface of the vibrating rod.
[0009] Preferably, the purging and unblocking assembly includes an electronically controlled air pump, a gas output pipe, and a gas flow channel; The electrically controlled air pump is symmetrically fixed to both sides of the top of the heavy-duty valve body by bolts; The gas output pipe is fixedly installed at the bottom output end of the electrically controlled gas pump; The gas flow channels are symmetrically arranged inside both sides of the valve plate.
[0010] Preferably, the sealing rings are symmetrically arranged and fit against the surface of the valve plate. The surface of the sealing rings that fit against the extrusion wedges is set as an inclined plane. The extrusion wedges are slidably installed inside the sealing cavity. The positioning springs are equidistantly arranged and fixedly installed between the surface of the sealing rings away from the valve plate and the surface of the sealing cavity.
[0011] Preferably, the surface of the card block near the squeezing wedge is set as an inclined surface, the inclined surface of the card block is made of magnetic material, the inclined surface of the squeezing wedge is provided with a magnet, the magnet is used to attract the card block, and a tension spring is fixedly installed between the squeezing wedge and the side wall of the sealing cavity.
[0012] Preferably, the driven wedge is symmetrically slidably installed on both sides of the corresponding position limiting block, a return spring is fixedly installed on the bottom surface of the limiting block, and a traction spring is fixedly connected to the side surface of the locking block away from the driven wedge. A through groove is opened in the middle of the driven wedge, and the outer surface of the extrusion hemisphere abuts against the outer surface of the driven hemisphere.
[0013] Preferably, the positioning scraper abuts against the surface of the valve plate, and the surface of the positioning scraper near the valve plate is provided with cleaning grooves at equal intervals. The positioning scraper is fixed by the positioning plate and the bottom snap-fit plate. The roller is in close contact with the surface of the valve plate, and the surface of the roller is provided with extrusion grooves in a circumferential array. The top end of the vibration rod is installed in the extrusion groove at the corresponding position. The two ends of the return spring are respectively fixedly connected to the surface of the vibration rod and the surface of the groove wall of the positioning scraper mounting groove.
[0014] Preferably, the end of the gas output pipe away from the electrically controlled gas pump is located inside the gas flow channel, and the end of the gas flow channel away from the gas output pipe is connected to the sealing cavity.
[0015] Preferably, the driven wedge blocks the gas flow channel at the corresponding position, and the sealing ring blocks the connection between the gas flow channel and the sealing cavity.
[0016] Compared with the prior art, the present invention provides a heavy-duty penetration-type anti-crystallization long slide valve, which has the following beneficial effects: By using a positioning plate, a positioning scraper, and a bottom snap-fit plate, friction is generated between the plate and the valve plate surface during opening and closing, thereby scraping away impurities and deposits on the valve plate surface. This prevents crystallization from forming on the valve plate surface, as impurities and deposits on the valve plate surface can affect the sealing effect between the valve plate and the valve seat, leading to valve leakage. Scraping away these substances ensures that the valve plate and valve seat fit tightly, maintaining good sealing performance and effectively preventing media leakage. In addition, timely cleaning of impurities can prevent the retention of impurities on the valve plate surface from affecting the flexibility of the valve plate's movement inside the heavy-duty valve body.
[0017] The roller, vibrating rod, and return spring help to apply continuous vibration to the bottom snap-fit plate when the positioning scraper cleans impurities on the valve plate surface. This vibration then acts on the surface of the positioning scraper, preventing the scraped impurities from remaining on the surface of the positioning scraper.
[0018] By using a sealing ring, a compression wedge, and a positioning spring, the sealing performance of the slide gate valve is ensured during use. This allows the sealing ring to maintain a good sealing state under different working pressures and temperatures, adapting to various complex working conditions.
[0019] The design of the locking block, driven wedge block, limiting block, driven hemisphere, and squeezing hemisphere ensures that the sealing ring is detached from the surface of the valve plate when it is opened and closed. This prevents excessive friction between the valve plate and the surface of the sealing ring during movement, thereby extending the service life of the sealing ring and ensuring the sealing performance of the slide valve.
[0020] By setting up an electrically controlled air pump, gas output pipeline, and gas flow channel, when the slide gate valve is opened and closed, the movement of the sealing ring generates gas to blow on the surface of the valve plate, thereby cleaning the impurities scraped off by the positioning scraper and preventing impurities from remaining on the valve plate surface and affecting the opening and closing of the slide gate valve. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the heavy-duty valve body of the present invention; Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the connection relationship at the positioning plate of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C; Figure 7 This is a schematic diagram of the connection relationship at the limiting block of the present invention; Figure 8 This is a schematic diagram of the top cross-sectional structure of the heavy-duty valve body of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point D; Figure 10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point E in the middle; Figure 11 This is a schematic diagram of the connection relationship at the driven wedge block of the present invention; Figure 12 This is a schematic diagram showing the positional relationship of the card block in this invention.
[0022] In the diagram: 11. Heavy-duty valve body; 12. Drive unit; 13. Valve plate; 21. Sealing ring; 22. Rigid spring; 23. Compression wedge; 24. Positioning spring; 25. Locking block; 26. Driven wedge; 27. Limiting block; 28. Driven hemisphere; 29. Compression hemisphere; 31. Positioning plate; 32. Positioning scraper; 33. Bottom locking plate; 34. Connecting spring; 35. Roller; 36. Vibration rod; 37. Return spring; 41. Electrically controlled air pump; 42. Gas output pipeline; 43. Gas flow channel. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Embodiments of the present invention Please see Figures 1 to 4 and Figures 7 to 12 A heavy-duty penetrating anti-crystallization long slide valve includes a heavy-duty valve body 11, a drive device 12 fixedly installed on the top of the heavy-duty valve body 11, a valve plate 13 slidably installed inside the heavy-duty valve body 11, a flange installed in the middle of the heavy-duty valve body 11, a sealing cavity opened inside the heavy-duty valve body 11, a slide rail fixedly installed inside the heavy-duty valve body 11, the valve plate 13 slidably installed on the surface of the slide rail, and also includes a sealing component, an anti-crystallization component, and a purging and unblocking component disposed inside the heavy-duty valve body 11.
[0025] The sealing assembly includes a sealing ring 21, a rigid spring 22, a compression wedge 23, and a positioning spring 24.
[0026] The sealing ring 21 is slidably connected to the surface of the sealing cavity inside the heavy-duty valve body 11.
[0027] The rigid springs 22 are fixedly installed in a circumferential array inside the sealing ring 21.
[0028] The compression wedge 23 is attached to the surface of one side of the rigid spring 22.
[0029] The positioning springs 24 are fixedly connected in a circumferential array between the outer surface of the sealing ring 21 and the cavity surface of the sealing cavity.
[0030] The sealing assembly also includes a locking block 25, a driven wedge block 26, a limiting block 27, a driven hemisphere 28, and a compression hemisphere 29.
[0031] The locking blocks 25 are symmetrically slidably installed on both sides of the valve plate 13.
[0032] The driven wedge 26 is engaged with the surface of the corresponding locking block 25.
[0033] The limiting block 27 is symmetrically arranged and vertically slidably connected to the sealing cavity surface of the heavy valve body 11.
[0034] The driven hemisphere 28 is vertically and equidistantly fixed to the surface of the driven wedge 26 at the end away from the locking block 25.
[0035] The outer surfaces on both sides of the valve plate 13 are vertically and equidistantly connected with extruded hemispheres 29.
[0036] The sealing ring 21 is symmetrically arranged and fits against the surface of the valve plate 13. The surface of the sealing ring 21 that fits against the extrusion wedge 23 is set as an inclined plane. The extrusion wedge 23 is slidably installed inside the sealing cavity. The positioning spring 24 is equidistantly arranged and fixedly installed between the surface of the sealing ring 21 away from the valve plate 13 and the surface of the sealing cavity.
[0037] The surface of the card block 25 near the squeezing wedge 23 is set as an inclined surface. The inclined surface of the card block 25 is made of magnetic material. The inclined surface of the squeezing wedge 23 is provided with a magnet. The magnet is used to attract the card block 25. A tension spring is fixedly installed between the squeezing wedge 23 and the side wall of the sealing cavity.
[0038] Among them, the driven wedge 26 is symmetrically slidably installed on both sides of the corresponding position limiting block 27. A return spring is fixedly installed on the bottom surface of the limiting block 27. A traction spring is fixedly connected to the side surface of the locking block 25 away from the driven wedge 26. A through groove is opened in the middle of the driven wedge 26. The outer surface of the extrusion hemisphere 29 abuts against the outer surface of the driven hemisphere 28.
[0039] In an alternative embodiment, see [reference] Figure 1 and Figure 2 The valve plate 13 moves vertically inside the heavy valve body 11 under the control of the drive device 12. It should be noted that the drive device 12 consists of an existing drive structure and a valve stem. This technology is existing technology, so it will not be described in detail here.
[0040] In an alternative embodiment, see [reference] Figure 4 , Figure 8 as well as Figure 9 In actual use, the sealing ring 21 is subjected to the action of the compression wedge 23 and the positioning wedge, and is tightly fitted to the surface of the valve plate 13, sealing the valve plate 13 around the flange inside the heavy valve body 11.
[0041] In an alternative embodiment, see [reference] Figures 7 to 12When the valve plate 13 is stationary, the sealing ring 21 seals the area around the valve plate 13, ensuring the overall sealing performance of the slide gate valve. When the valve plate 13 moves vertically inside the heavy valve body 11 under the control of the drive device 12, the compression hemispheres 29 fixedly connected to the two sides of the valve plate 13 will move accordingly, thereby abutting against the driven hemispheres 28 located on the driven wedge block 26, forcing the driven hemispheres 28 to drive the driven wedge block 26 to move vertically.
[0042] During the above process, since the driven wedge 26 is horizontally slidably installed inside the limiting block 27, the downward movement of the driven wedge 26 will cause the limiting block 27 to move vertically downward inside the sealed cavity, thereby compressing the return spring installed at the bottom of the limiting block 27 until the return spring is compressed to its maximum extent, and the limiting block 27 can no longer move.
[0043] It should be noted that, in the initial state, the driven hemisphere 28 is located in the gap between the adjacent extruded hemispheres 29.
[0044] In an alternative embodiment, see [reference] Figure 9 After the limiting block 27 moves to its maximum extent, the spherical surface of the extrusion hemisphere 29 will continue to extrude the spherical surface of the driven hemisphere 28. As the spherical surface continues to extrude, the driven hemisphere 28 will drive the corresponding driven wedge 26 to move closer to each other inside the limiting block 27 under the force of the extrusion hemisphere 29. Since the extrusion hemispheres 29 are equidistantly arranged, the state of the driven hemisphere 28 moving under the force of the extrusion hemisphere 29 will continue as long as the valve plate 13 is in motion.
[0045] In an alternative embodiment, see [reference] Figure 10 The movement of the driven wedge 26 will cause the locking block 25, which is locked to it, to move synchronously. The locking block 25 will then move closer to the valve plate 13 inside the sealing cavity, thereby stretching the traction spring that is locked to it.
[0046] During the above process, since the surface of the card block 25 near the pressing wedge 23 is set as an inclined surface, the inclined surface of the card block 25 is made of magnetic material, and the inclined surface of the pressing wedge 23 is provided with a magnet, the card block 25 will move along the surface of the pressing wedge 23 when it moves, until the pressing wedge 23 and the inclined surface of the card block 25, which were originally in a mutually attracted state, separate from each other.
[0047] It should be noted that in the initial state, the traction spring fixed by the squeezing wedge 23 is in a stretched state, and the positioning spring 24 is also in a stretched state. That is, when the locking block 25 and the squeezing wedge 23 attract each other, the traction spring is in a stretched deformation state. In addition, the elastic coefficient of the tension spring is greater than that of the traction spring, and when the traction spring is in a stretched deformation state, the tension spring itself will not produce elastic deformation.
[0048] In an alternative embodiment, see [reference] Figure 10 After the squeezing wedge 23 and the locking block 25 are separated from the adsorption state, the squeezing wedge 23 will move away from the valve plate 13 under the action of the traction spring. At the same time, the sealing ring 21, which loses the force of the squeezing wedge 23, will move away from the valve plate 13 inside the sealing cavity under the rebound action of the positioning spring 24, so that the sealing ring 21 and the valve plate 13 are separated from the tight fit.
[0049] That is, when the valve plate 13 moves vertically, the valve plate 13 in motion will cause the sealing ring 21, which originally tightly seals the gap between the heavy valve body 11 and the valve plate 13, to detach from the surface of the valve plate 13. This prevents excessive friction between the surface of the valve plate 13 in motion and the sealing ring 21, thereby extending the service life of the sealing ring 21.
[0050] Further embodiments Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 The heavy-duty through-type anti-crystallization long slide valve also includes an anti-crystallization component, which is used to scrape off residues on the surface of the valve plate 13 to prevent crystallization.
[0051] The anti-crystallization component includes a positioning plate 31, a positioning scraper 32, a bottom snap-fit plate 33, and a connecting spring 34.
[0052] The heavy-duty valve body 11 has an internal volume chamber, and the positioning plate 31 is symmetrically fixedly installed on the side wall of the volume chamber.
[0053] The positioning scraper 32 is attached to the bottom surface of the positioning plate 31.
[0054] The bottom snap-fit plate 33 is symmetrically and fixedly installed on the bottom cavity wall of the volumetric cavity.
[0055] The connecting spring 34 is fixedly connected to the side wall surface of the positioning scraper 32.
[0056] The anti-crystallization assembly also includes a roller 35, a vibrating rod 36, and a return spring 37.
[0057] The roller 35 is rotatably mounted inside the positioning plate 31 on the side near the valve plate 13.
[0058] The positioning scraper 32 has mounting grooves that are equidistantly opened inside, and the vibration rods 36 are all slidably installed inside the mounting grooves.
[0059] The reset spring 37 is sleeved and installed on the outer surface of the vibration rod 36.
[0060] The positioning scraper 32 abuts against the surface of the valve plate 13, and the surface of the positioning scraper 32 near the valve plate 13 is provided with cleaning grooves at equal intervals. The positioning scraper 32 is fixed by the positioning plate 31 and the bottom snap-fit plate 33. The roller 35 is in close contact with the surface of the valve plate 13, and the surface of the roller 35 is provided with extrusion grooves in a circumferential array. The top end of the vibration rod 36 is installed in the extrusion groove at the corresponding position. The two ends of the return spring 37 are fixedly connected to the surface of the vibration rod 36 and the surface of the groove wall of the positioning scraper 32, respectively.
[0061] In an alternative embodiment, see [reference] Figure 3 , Figure 5 and Figure 6 It should be noted that the surface of the roller 35 is provided with a rubber layer to increase the friction between it and the surface of the valve plate 13. When the valve plate 13 moves vertically inside the heavy valve body 11, the roller 35, which is in contact with the surface of the valve plate 13, will rotate inside the positioning plate 31 under the action of friction. Since the roller 35 has a circumferential array of extrusion grooves, the top end of the vibrating rod 36 is installed in the corresponding extrusion groove. Therefore, the continuously rotating roller 35 will cause the vibrating rod 36 to move inside the mounting groove. Under the action of the return spring 37, the vibrating rod 36 will reciprocate inside the mounting groove, so that the bottom end of the vibrating rod 36 will make continuous contact with the surface of the bottom locking plate 33, causing the bottom locking plate 33 to vibrate. The vibration is transmitted to the positioning scraper 32 through the contact between the bottom locking plate 33 and the positioning scraper 32.
[0062] It should be noted that when the positioning scraper 32 is in use, it will rub against the surface of the valve plate 13 in conjunction with the movement of the valve plate 13, thereby scraping off the impurities attached to the surface of the valve plate 13, thus preventing the formation of crystalline deposits on the surface of the valve plate 13 after long-term use.
[0063] In an alternative embodiment, see [reference] Figure 3 and Figure 6 There are gaps between the surface of the positioning scraper 32 near the valve plate 13 and the surface of the positioning plate 31 near the valve plate 13 to prevent impurities from remaining on the surfaces of the positioning plate 31 and the positioning scraper 32.
[0064] Further embodiments Please see Figure 1 and Figure 7 The heavy-duty penetrating anti-crystallization long slide valve also includes a purging and unblocking assembly, which works in conjunction with the sealing assembly to blow out gas to clean the surface of the valve plate 13 when the valve plate 13 moves.
[0065] The purging and unblocking assembly includes an electrically controlled air pump 41, a gas output pipe 42, and a gas flow channel 43.
[0066] The electrically controlled air pump 41 is symmetrically fixed to both sides of the top of the heavy-duty valve body 11 by bolts.
[0067] The gas output pipe 42 is fixedly installed at the bottom output end of the electrically controlled air pump 41.
[0068] The gas flow channels 43 are symmetrically opened through the interior of both sides of the valve plate 13.
[0069] The gas output pipe 42 is located at the end away from the electric control air pump 41 inside the gas flow channel 43, and the end of the gas flow channel 43 away from the gas output pipe 42 is connected to the sealing cavity.
[0070] Among them, the driven wedge 26 blocks the gas flow channel 43 at the corresponding position, and the sealing ring 21 blocks the connection between the gas flow channel 43 and the sealing cavity.
[0071] In an alternative embodiment, see [reference] Figure 1 When the operator moves the valve plate 13 inside the heavy valve body 11 by driving the device 12, the two electrically controlled air pumps 41 located on both sides of the heavy valve plate 13 will start accordingly and deliver gas through the gas output pipe 42 fixedly connected to the bottom of the electrically controlled air pump 41. It should be noted that the opening and closing of the electrically controlled air pump 41 are achieved by an external control device, and this technology is existing technology, so it will not be described in detail here.
[0072] In an alternative embodiment, see [reference] Figure 7 , Figure 10 as well as Figure 12 Since the driven wedge 26 has a through groove, and in the initial state the driven wedge 26 blocks the gas flow channel 43 at the corresponding position, and the sealing ring 21 blocks the connection between the gas flow channel 43 and the sealing cavity, as the driven wedge 26 moves, the through groove will connect with the gas flow channel 43, so that the gas flow channel 43, which was originally in a closed state, is in a connected state.
[0073] It should also be noted that during the movement of the valve body, the sealing ring 21 will detach from the surface of the valve body, thereby opening the connection between the gas flow channel 43, which was originally in a closed state, and the sealing cavity. At this time, the electrically controlled air pump 41, which is in the open state, will deliver gas to the surface of the valve body through the gas output pipe 42 and the gas flow channel 43.
[0074] The specific movement path of the gas in the above process is: gas output pipe 42 → gas flow channel 43 → connecting groove → gas flow channel 43 → connection between gas flow channel 43 and sealing cavity → surface of valve plate 13. Thus, by blowing the gas, the impurities scraped by the positioning scraper 32 are further blown along the surface of valve plate 13, thereby avoiding impurities from clogging between valve plate 13 and heavy valve body 11.
[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heavy-duty penetration-type anti-crystallization long slide valve, comprising a heavy-duty valve body (11), a drive device (12) fixedly mounted on the top of the heavy-duty valve body (11), a valve plate (13) slidably mounted inside the heavy-duty valve body (11), a flange mounted in the middle of the heavy-duty valve body (11), a sealing cavity opened inside the heavy-duty valve body (11), a slide rail fixedly mounted inside the heavy-duty valve body (11), and the valve plate (13) slidably mounted on the surface of the slide rail, characterized in that: It also includes a sealing assembly, an anti-crystallization assembly, and a purging and unclogging assembly disposed inside the heavy-duty valve body (11); The sealing assembly includes a sealing ring (21), a rigid spring (22), a compression wedge (23), and a positioning spring (24). The sealing ring (21) is slidably connected to the surface of the sealing cavity inside the heavy-duty valve body (11); A rigid spring (22) is fixedly installed in a circumferential array inside the sealing ring (21); The compression wedge (23) is attached to the surface of one side of the rigid spring (22); The positioning springs (24) are fixedly connected in a circumferential array to the outer surface of the sealing ring (21) and the cavity surface of the sealing cavity; The anti-crystallization component is used to scrape off residues on the surface of the valve plate (13) to prevent crystallization. The anti-crystallization component includes a positioning plate (31), a positioning scraper (32), a bottom snap-fit plate (33), and a connecting spring (34). The heavy-duty valve body (11) has a volume chamber inside, and the positioning plate (31) is symmetrically fixedly installed on the side wall of the volume chamber; The positioning scraper (32) is attached to the bottom surface of the positioning plate (31); The bottom snap-fit plate (33) is symmetrically fixedly installed on the bottom cavity wall of the volumetric cavity; The connecting spring (34) is fixedly connected to the side wall surface of the positioning scraper (32); The purging and unblocking assembly works in conjunction with the sealing assembly to blow out gas to clean the surface of the valve plate (13) as the valve plate (13) moves.
2. The heavy-duty penetration-type anti-crystallization long slide valve according to claim 1, characterized in that: The sealing assembly also includes a locking block (25), a driven wedge (26), a limiting block (27), a driven hemisphere (28), and a compression hemisphere (29). The locking blocks (25) are symmetrically slidably installed on both sides of the valve plate (13); The driven wedge (26) is engaged with the surface of the corresponding locking block (25); The limiting block (27) is symmetrically arranged and vertically slidably connected to the sealing cavity surface of the heavy valve body (11); The driven hemisphere (28) is vertically and equidistantly fixed to the surface of the driven wedge (26) at the end away from the locking block (25); The outer surfaces of both sides of the valve plate (13) are vertically and equidistantly connected with extruded hemispheres (29).
3. The heavy-duty penetration-type anti-crystallization long slide valve according to claim 1, characterized in that: The anti-crystallization assembly also includes a roller (35), a vibrating rod (36), and a return spring (37). The roller (35) is rotatably mounted inside the positioning plate (31) on the side near the valve plate (13); The positioning scraper (32) has equidistant through-holes for mounting grooves, and the vibrating rods (36) are all slidably mounted inside the mounting grooves; The reset spring (37) is sleeved and installed on the outer surface of the vibrating rod (36).
4. The heavy-duty penetration-type anti-crystallization long slide valve according to claim 1, characterized in that: The purging and unblocking assembly includes an electronically controlled air pump (41), a gas output pipe (42), and a gas flow channel (43). The electrically controlled air pump (41) is symmetrically fixed to both sides of the top of the heavy-duty valve body (11) by bolts; The gas output pipe (42) is fixedly installed at the bottom output end of the electrically controlled gas pump (41); The gas flow channels (43) are symmetrically opened through the interior of both sides of the valve plate (13).
5. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 1, characterized in that: The sealing ring (21) is symmetrically arranged and fits against the surface of the valve plate (13). The surface of the sealing ring (21) that fits against the extrusion wedge (23) is set as an inclined plane. The extrusion wedge (23) is slidably installed inside the sealing cavity. The positioning spring (24) is equidistantly set and fixed between the surface of the sealing ring (21) away from the valve plate (13) and the surface of the sealing cavity.
6. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 2, characterized in that: The side surface of the card block (25) near the squeezing wedge (23) is set as an inclined surface. The inclined surface of the card block (25) is made of magnetic material. The inclined surface of the squeezing wedge (23) is provided with a magnet. The magnet is used to attract the card block (25). A tension spring is fixedly installed between the squeezing wedge (23) and the side wall of the sealing cavity.
7. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 2, characterized in that: The driven wedge (26) is symmetrically slidably installed on both sides of the corresponding position limiting block (27). A return spring is fixedly installed on the bottom surface of the limiting block (27). A traction spring is fixedly connected to the side surface of the locking block (25) away from the driven wedge (26). A through groove is opened in the middle of the driven wedge (26). The outer surface of the extrusion hemisphere (29) abuts against the outer surface of the driven hemisphere (28).
8. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 3, characterized in that: The positioning scraper (32) abuts against the surface of the valve plate (13), and the surface of the positioning scraper (32) near the valve plate (13) is provided with cleaning grooves at equal intervals. The positioning scraper (32) is fixed by the positioning plate (31) and the bottom snap-fit plate (33). The roller (35) abuts against the surface of the valve plate (13), and the surface of the roller (35) is provided with extrusion grooves in a circumferential array. The top end of the vibrating rod (36) abuts against the extrusion groove in the corresponding position. The two ends of the return spring (37) are fixedly connected to the surface of the vibrating rod (36) and the surface of the groove wall of the positioning scraper (32) respectively.
9. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 4, characterized in that: The end of the gas output pipe (42) away from the electric control gas pump (41) is located inside the gas flow channel (43), and the end of the gas flow channel (43) away from the gas output pipe (42) is connected to the sealing cavity.
10. A heavy-duty penetration-type anti-crystallization long slide valve according to claim 9, characterized in that: The driven wedge (26) blocks the gas flow channel (43) at the corresponding position, and the sealing ring (21) blocks the connection between the gas flow channel (43) and the sealing cavity.