Corrosion-resistant alloy flange

Abstract

The invention belongs to the field of flanges, and particularly relates to a corrosion-resistant alloy flange which comprises two first flange plates welded to ports of external medium conveying pipelines, second flange plates are arranged on the sides, close to each other, of the two first flange plates, and a connecting mechanism is jointly arranged between the two second flange plates. The connecting mechanism comprises a shell fixedly connected with the second left flange plate through a first connecting pipe, an annular plate is slidably arranged at the position, close to the right side, in the shell, a second connecting pipe is fixedly arranged on the inner ring of the annular plate, and the end, away from the annular plate, of the second connecting pipe is fixedly connected with the second right flange plate. According to the anti-corrosion flange, anti-corrosion protection can be conducted at the whole flange connecting position, the anti-corrosion performance is further improved through the structure of the flange while the anti-corrosion performance of the flange is improved through the material of the flange, the good anti-corrosion performance is achieved, and the high requirement for the anti-corrosion performance of part of conveying media can be met.

Description

Technical Field

[0001] The invention belongs to the field of flanges, and in particular relates to a corrosion-resistant alloy flange. Background Art

[0002] The main function of flange is to firmly connect two pipes, pipes and equipment (such as valves, pumps, pressure vessels, etc.). The length of the pipe is often limited, and flanges are needed to splice pipes of different lengths. Flanges can be divided into metal flanges and non-metal flanges according to material classification. Metal flanges, such as carbon steel flanges, have higher structural strength, and non-metal flanges, such as plastic flanges, have stronger corrosion resistance.

[0003] Existing flanges have the following defects when in use: 1. In order to improve the corrosion resistance of metal flanges, the material of the flange itself is generally optimized. For example, in general, the corrosion resistance of alloy flanges is better than that of traditional metal flanges. However, when the medium being transported is highly corrosive, even alloy flanges will gradually corrode over time, and the corrosion resistance needs to be improved; 2. When connecting traditional flanges, two flat end faces are usually fitted together, and the fitting is sealed with a rubber pad or a rubber ring. The maximum sealing path length of the flange connection end face for the conveying medium is only the end face radius length of the flange, and the sealing effect needs to be improved. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides a corrosion-resistant alloy flange, which can provide corrosion protection at the entire flange connection. While improving the corrosion resistance of the flange itself through the material, it further improves the corrosion resistance through its own structure. It has good corrosion resistance and can meet the high requirements of corrosion resistance for some conveying media.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: The present invention provides a corrosion-resistant alloy flange, including two flanges 1 respectively welded to the pipe ports of the external conveying medium, and the two flanges 1 are each provided with flanges 2 on the sides close to each other, and a connecting mechanism is commonly provided between the two flanges 2. The connecting mechanism includes a shell fixedly connected to the left flange 2 through a connecting pipe 1, a ring plate is slidably provided inside the shell near the right position, a connecting pipe 2 is fixedly provided on the inner ring of the ring plate, and the end of the connecting pipe 2 away from the ring plate is fixedly connected to the right flange 2, and a guide seat with a truncated cone structure on the left and a cylindrical structure on the right is rotatably provided inside the shell, and a protective component is commonly provided between the guide seat and the inner wall of the shell. The protection component includes a plurality of anode plates 1 distributed along the length direction of the shell and in an annular structure, a plurality of anode plates 2 distributed along the length direction of the shell and in an annular structure are movably sleeved on the surface of the cylindrical section of the guide seat, and the anode plate 1 is movably sleeved on the outer surface of the cylindrical section of the guide seat, and the anode plate 2 and the anode plate 1 are both fixedly connected to the inner wall of the shell by bolts 1, and the plurality of anode plates 1 and the plurality of anode plates 2 are staggered left and right. The interior of the shell is formed by the guide seat, the plurality of anode plates 1 and the plurality of anode plates 2 to form a guide channel that can prolong the reaction time of the conveying medium with the anode plates 1 and 2.

[0006] According to a favorable embodiment, a drain port 1 is provided on the right side of the guide seat, and a plurality of drain ports 2 distributed along its circumferential direction and connected to the drain port 1 are provided on the circumferential side wall of the guide seat close to the right side, and the drain ports 2 are connected to the guide channel.

[0007] According to a favorable embodiment, a retention screen plate 1 with an annular structure is fixedly provided inside the connecting pipe 1 by means of bolt 2, a rotating groove 1 extending along its circumferential direction is provided on the surface of the conical section of the guide seat, a rotating ring is rotatably provided on the rotating groove 1, the retention screen plate 1 is fixedly sleeved on the surface of the rotating ring, the internal thread of the drain port 1 is connected with the retention screen plate 2, and a scraper assembly for cleaning dirt on the surface of the anode plate 1 and the anode plate 2 is provided on the guide seat.

[0008] According to a favorable embodiment, the scraper assembly includes a plurality of scrapers, which respectively slide and abut against the left and right side walls of anode plate one and anode plate two, a movable cavity is opened inside the cylindrical section of the guide seat, the part of the scraper close to the guide seat movably passes through the guide seat and extends into the movable cavity, the parts of the scrapers located in the movable cavity are commonly fixedly connected with a connecting plate with a T-shaped structure, the surface of the vertical section of the connecting plate is provided with a plurality of racks composed of tooth blocks, a rotating shaft is commonly rotatably arranged between the left and right side walls of the movable cavity, a gear meshing with the rack is fixedly arranged on the rotating shaft, the left end of the rotating shaft movably passes through the guide seat and is fixedly connected with a rotating disk, the rotating disk is fixedly arranged on the left end face of the conical section of the guide seat by bolt three, the vertical section of the connecting plate is slidably connected with a guide rod, and the end of the guide rod away from the connecting plate is fixedly connected to the inner wall of the movable cavity.

[0009] According to a favorable embodiment, a worm wheel blade group is fixedly provided on the left end face of the conical section of the guide seat, a guide ring with an annular structure is fixedly provided on the right end face of the guide seat, a guide seat is fixedly provided on the inner wall of the connecting pipe 2 close to the guide ring, a rotating groove 2 matching the guide ring is opened on the left side of the guide seat, a plurality of balls are rotatably provided on each inner side wall of the rotating groove 2 along its circumferential direction, and the guide ring is slidably provided in the rotating groove 2 and rolls against the balls.

[0010] According to a favorable embodiment, a bite end 1 and a bite end 2 are fixedly provided on the side where the corresponding flange plate 1 and flange plate 2 are close to each other, and the corresponding bite end 1 and bite end 2 are both annular structures and are interlocked with each other to form a first sealing surface, and the cross-section of the first sealing surface is a serrated structure. A sealing gasket 1 is laid on the first sealing surface, and the corresponding flange plate 1 and flange plate 2 are fixedly connected together by a plurality of bolts 4 distributed along the circumferential direction.

[0011] According to a favorable embodiment, the right inner wall of the shell and the right side of the ring plate are respectively fixed with a bite end three and a bite end four, both of which are annular structures and are interlocked to form a second sealing surface, the cross-section of the second sealing surface is a serrated structure, and a sealing gasket two is laid on the second sealing surface.

[0012] According to a favorable embodiment, the anode plate 1 is composed of three sections of arc-shaped plates 1 that are spliced ​​in sequence, and each section of the arc-shaped plate 1 is fixed to the inner wall of the shell by bolt 1; the anode plate 2 is composed of three sections of arc-shaped plates 2 that are spliced ​​in sequence, and each section of the arc-shaped plate 2 is also fixed to the inner wall of the shell by bolt 1.

[0013] Compared with the prior art, the corrosion-resistant alloy flange provided by the embodiment of the present invention has the following beneficial effects:

[0014] 1. In the present invention, the protective component provided can cooperate with the shell to form a cathodic protection area during the medium transportation process, thereby forming a large-scale cathodic protection area in the flange connection area, and providing anti-corrosion protection for the entire flange connection. While the flange itself improves its anti-corrosion performance through the material, it further improves its anti-corrosion performance through its own structure, which can meet the high requirements of anti-corrosion performance for some conveying media.

[0015] 2. In the present invention, the provided hanging material assembly can cooperate with the guide seat and the worm wheel blade assembly, and can scrape off the waste on the side walls of the anode plate 1 and the anode plate 2 while facilitating the disassembly and assembly of the guide seat, so as to avoid the waste from adhering for a long time and affecting the corrosion resistance.

[0016] 3. In the present invention, the first sealing surface formed by the bite end 1 and the bite end 2 and the second sealing surface formed by the bite end 3 and the bite end 4 are both serrated structures in cross section. Compared with the flat sealing surface between traditional flanges, the conveying medium needs to move a longer path when leaking from the inside of the pipeline to the outside, thereby further delaying the time of pipeline leakage.

[0017] 4. In the present invention, the left and right flanges 2 can slide relative to each other, so that the shell can be removed from the conveying pipeline to replace the anode plate 1 and the anode plate 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the first position of the present invention.

[0019] Figure 2 It is a second position three-dimensional structural diagram of the present invention.

[0020] Figure 3 It is a sectional three-dimensional structural diagram of the present invention as a whole.

[0021] Figure 4 for Figure 3 A magnified structural diagram of part A.

[0022] Figure 5 It is a cross-sectional enlarged structural diagram of the local structure inside the shell.

[0023] Figure 6 It is a sectional exploded three-dimensional structural diagram of the whole of the present invention.

[0024] Figure 7 It is a sectional three-dimensional structural diagram of flange 1 in the present invention.

[0025] Figure 8 It is a three-dimensional cross-sectional structural diagram of the guide seat in the present invention.

[0026] Fig. 9 A sectional three-dimensional structural diagram of the shell in the present invention.

[0027] Fig.10 It is a plan view schematically showing the movement of the conveying medium in the guide channel in the present invention.

[0028] Fig.11 It is a schematic diagram of the structure of anode plate 1 and anode plate 2 in the present invention.

[0029] The reference numerals in the figure are: 1. Flange one; 11. Engaging end one; 2. Flange two; 21. Engaging end two; 3. Connecting mechanism; 31. Shell; 311. Engaging end three; 32. Ring plate; 321. Engaging end four; 33. Connecting pipe two; 34. Guide seat; 341. Drain outlet one; 342. Drain outlet two; 343. Active cavity; 35. Protective component; 351. Anode plate one; 352. Anode plate two; 353. Guide channel; 36. Connecting pipe one; 4. Retaining sieve plate one; 5. Rotating ring; 6. Retaining sieve plate two; 7. Scraper component; 71. Scraper; 72. Connecting plate; 73. Rack; 74. Rotating shaft; 75. Gear; 76. Rotating disk; 77. Guide rod; 8. Worm wheel blade group; 9. Guide ring; 10. Guide seat. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-11 The present application is further described in detail.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 A corrosion-resistant alloy flange includes two flanges 1 welded to the pipe ports of the external conveying medium, and the two flanges 1 are provided with flanges 2 2 on the sides close to each other, and a connecting mechanism 3 is provided between the two flanges 2. The connecting mechanism 3 includes a shell 31 fixedly connected to the left flange 2 through a connecting pipe 36, a ring plate 32 is slidably provided inside the shell 31 near the right position, a connecting pipe 2 33 is fixedly provided on the inner ring of the ring plate 32, and one end of the connecting pipe 2 33 away from the ring plate 32 is fixedly connected to the right flange 2, and a guide seat 34 with a truncated cone structure on the left and a cylindrical structure on the right is rotatably provided inside the shell 31, and a protective component 35 is provided between the guide seat 34 and the inner wall of the shell 31.

[0032] See also Figure 3 , Figure 5 , Fig.10 and Fig.11The protection assembly 35 includes a plurality of anode plates 1 351 distributed along the length direction of the shell 31 and in an annular structure, and a plurality of anode plates 2 352 distributed along the length direction of the shell 31 and in an annular structure are movably sleeved on the surface of the cylindrical section of the guide seat 34, and the anode plate 1 351 is movably sleeved on the outer surface of the cylindrical section of the guide seat 34, and the anode plate 2 352 and the anode plate 1 351 are fixedly connected to the inner wall of the shell 31 by bolts 1, and the plurality of anode plates 1 351 and the plurality of anode plates 2 352 are staggered left and right. The inner circle diameter of the anode plate 1 351 is larger than the inner circle diameter of the anode plate 2 352. The anode plate 1 351 is composed of three sections of arc-shaped plates 1 spliced ​​in sequence, and each section of the arc-shaped plates 1 is fixedly set on the inner wall of the shell 31 by bolts 1. The anode plate 2 352 is composed of three sections of arc-shaped plates 2 spliced ​​in sequence, and each section of the arc-shaped plates 2 is also fixedly set on the inner wall of the shell 31 by bolts 1. Since the diameter of the anode plate 1 351 is relatively large, there is a certain gap between its inner circle and the outside of the guide seat 34 for the conveying medium to flow. There is a certain space between the outer circle of the anode plate 2 352 and the inner wall of the shell 31 for the conveying medium to flow, so that the inside of the shell 31 cooperates with the guide seat 34, multiple anode plates 1 351 and multiple anode plates 2 352 to form a guide channel 353 that can prolong the reaction time between the conveying medium and the anode plates 1 351 and the anode plates 2 352.

[0033] See also Figure 3 , Figure 5 and Figure 8 A drain port 1 341 is provided on the right side of the guide seat 34 , and a plurality of drain ports 2 342 distributed along the circumferential direction of the guide seat 34 and connected to the drain port 1 341 are provided on the peripheral side wall of the guide seat 34 close to the right side, and the drain ports 2 342 are connected to the guide channel 353 .

[0034] During specific operation, the conveying medium moves from left to right through the two flanges 1 welded to the external pipes, and the conveying medium enters the guide channel 353 after being guided and dispersed by the guide seat 34, and then enters the drain port 2 342 after passing through the end of the guide channel 353, and finally is discharged into the connecting pipe 2 33 through the drain port 1 341. When the conveying medium passes through the guide channel 353, it will continuously react with the anode plate 1 351 and the anode plate 2 352 in the path. The front half of the guide channel 353 is a tapered channel, which can increase the pressure of the conveying medium and accelerate the passage of the conveying medium. The guide channel 353 is a serpentine structure. The reaction time between the conveying medium and the anode plate 1 351 and the anode plate 2 352 is prolonged as much as possible without affecting the conveying rate of the conveying medium in the pipeline. The anode plate 1 351 and the anode plate 2 352 can be made of magnesium alloy anode plates. Since the magnesium alloy anode plates have a very negative electrode potential, they can provide a large cathodic protection area for the entire flange passage. Therefore, while the flange material itself has a certain corrosion resistance, the flange's corrosion resistance is further improved through its own structure.

[0035] See also Figure 3 and Figure 4 A retaining sieve plate 4 with an annular structure is fixedly provided inside the connecting pipe 36 by bolts 2 (not shown in the figure), a rotating groove 1 extending along its circumferential direction is provided on the surface of the truncated cone section of the guide seat 34, a rotating ring 5 is rotatably provided on the rotating groove 1, the retaining sieve plate 4 is fixedly sleeved on the surface of the rotating ring 5, the internal thread of the drain port 341 is connected with the retaining sieve plate 2 6, and a scraper assembly 7 for cleaning the dirt on the surface of the anode plate 1 351 and the anode plate 2 352 is provided on the guide seat 34.

[0036] See also Figure 3 , Figure 5 and Figure 8The scraper assembly 7 includes a plurality of scrapers 71, which are respectively slidably pressed against the left and right side walls of the anode plate 1 351 and the anode plate 2 352. An active cavity 343 is provided inside the cylindrical section of the guide seat 34. The portion of the scraper 71 close to the guide seat 34 moves through the guide seat 34 and extends into the active cavity 343. The portions of the scrapers 71 located in the active cavity 343 are fixedly connected with a connecting plate 72 having a T-shaped structure. The surface of the vertical section of the connecting plate 72 is provided with a plurality of A rack 73 composed of tooth blocks and a rotating shaft 74 are arranged between the left and right side walls of the movable cavity 343 for common rotation. A gear 75 meshing with the rack 73 is fixedly arranged on the rotating shaft 74. The left end of the rotating shaft 74 movably passes through the guide seat 34 and is fixedly connected with a rotating disk 76. The rotating disk 76 is fixedly arranged on the left end surface of the conical section of the guide seat 34 by three bolts. The vertical section of the connecting plate 72 is slidably connected with a guide rod 77. The end of the guide rod 77 away from the connecting plate 72 is fixedly connected to the inner wall of the movable cavity 343.

[0037] See also Figure 3 , Figure 5 , Figure 8 and Fig. 9 A worm wheel blade group 8 is fixedly arranged on the left end face of the truncated cone section of the guide seat 34, a guide ring 9 with an annular structure is fixedly arranged on the right end face of the guide seat 34, a guide seat 10 is fixedly arranged on the inner wall of the connecting pipe 2 33 on the side close to the guide ring 9, a rotating groove 2 matching the guide ring 9 is opened on the left side of the guide seat 10, and a plurality of balls are rotatably arranged on each inner side wall of the rotating groove 2 along its circumferential direction, and the guide ring 9 is slidably arranged in the rotating groove 2 and rolls against the balls.

[0038] During specific operation, the cylindrical section on the right side of the guide seat 34 is rotatably connected to the connecting pipe 2 33 through the guide ring 9, and the truncated cone section on the left side of the guide seat 34 is rotatably connected to the interception screen plate 1 4 through the rotating ring 5. When the worm wheel blade group 8 rotates under the action of the conveying medium, the guide seat 34 rotates along with the worm wheel blades. The rotation of the guide seat 34 can drive the scraper 71 to slide along the side wall of the anode plate 1 351 or the anode plate 2 352, and scrape off the waste generated by the anode plate 1 351 or the anode plate 2 352 after reacting with the conveying medium, so as to avoid the waste from adhering for a long time and affecting the reaction efficiency and the reaction effect. The scraped waste is intercepted by the interception screen plate 1 4 and the interception screen plate 2 6 on the left and right sides of the interior of the shell 31, and is cleaned together when the anode plate 1 351 and the anode plate 2 352 are replaced later.

[0039] If it is necessary to replace anode plate 1 351 and anode plate 2 352 later, bolt three can be removed by rotating bolt three in the opposite direction, and then the rotating disk 76 can be rotated to drive the gear 75 to rotate. The gear 75 cooperates with the rack 73 on the connecting plate 72 to move the connecting plate 72 downward, so that all the scrapers 71 can move toward the inside of the guide seat 34, and the scrapers 71 are retracted into the guide seat 34, so as to facilitate the subsequent extraction of the guide seat 34 from the shell 31.

[0040] See also Figure 6 , Figure 7 and Fig. 9 , the corresponding flange 1 and flange 2 are fixedly provided with a bite end 11 and a bite end 21 on the side close to each other, and the corresponding bite end 11 and bite end 21 are both annular structures and fit together to form a first sealing surface, the cross section of the first sealing surface is a sawtooth structure, and a sealing gasket 1 (not shown in the figure) is laid on the first sealing surface, and the corresponding flange 1 and flange 2 are fixedly connected by a plurality of bolts 4 distributed along the circumferential direction. The right inner wall of the housing 31 and the right side of the ring plate 32 are fixedly provided with a bite end 311 and a bite end 4 321, respectively, and the bite end 311 and bite end 4 321 are both annular structures and fit together to form a second sealing surface, the cross section of the second sealing surface is a sawtooth structure, and a sealing gasket 2 (not shown in the figure) is laid on the second sealing surface. It is particularly noted that the shell 31 is composed of a pipe with open openings on both sides and two side cover plates with installation openings. During the initial assembly, the ring plate 32 will be pre-installed into the pipe before the side cover plates are welded to the pipe, and then the two side cover plates will be welded to the open opening of the pipe, and the ring plate 32 will be installed in the shell 31.

[0041] During specific operation, the two flanges 1 are welded to the corresponding pipes, and then fixedly connected to the corresponding flanges 2 by bolts 4. The cross-sections of the first sealing surface and the second sealing surface are both serrated structures. Compared with the traditional flat sealing surface, the path length of the leakage of the conveying medium from the inside to the outside is extended, and the time for the flange to leak is extended, thereby reducing the risk of leakage at the flange connection.

[0042] When the anode plate 1 351 and the anode plate 2 352 need to be replaced later, the bolts 4 on the left and right flanges 1 are removed, and then the two flanges 2 2 are pushed toward the center of the shell 31 at the same time. At this time, the ring plate 32 moves relatively inside the shell 31, so that the bite end 311 and the bite end 4 321 are separated. At the same time, the corresponding bite end 11 and the bite end 21 are separated, and the entire shell 31 can be removed from the pipeline. Then, the bolts 2 on the retention screen plate 1 4 are removed from the port of the left flange 2, and the retention screen plate 1 is removed. 4 is separated from the inner wall of the connecting pipe 1 36 and removed, and then the rotating disk 76 can be rotated by removing the bolt 3, and the scraper 71 is controlled to shrink and enter the guide seat 34, and then the guide seat 34, the worm blade group 8, the interception screen plate 1 4 and the interception screen plate 2 6 can be pulled out from the port of the left flange 2. At this time, the bolts 1 on the anode plate 2 352 and the anode plate 1 351 are removed from left to right in turn, and the anode plate 2 352 and the anode plate 1 351 can be separated into sections of arc plate 1 or arc plate 2, which can be taken out from the shell 31 for replacement.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A corrosion-resistant alloy flange, comprising two flange plates respectively welded to the pipe ports of an external conveying medium, characterized in that: A flange 2 is provided on each side of the two flanges 1 that are close to each other, and a connecting mechanism is provided between the two flanges 2; The connection mechanism includes a shell fixedly connected to the left flange plate 2 through a connecting pipe 1, a ring plate is slidably arranged inside the shell near the right side, a connecting pipe 2 is fixedly arranged on the inner ring of the ring plate, and one end of the connecting pipe 2 away from the ring plate is fixedly connected to the right flange plate 2, a guide seat with a truncated cone structure on the left and a cylindrical structure on the right is rotatably arranged inside the shell, and a protective component is commonly arranged between the guide seat and the inner wall of the shell; The protection component includes a plurality of anode plates 1 distributed along the length direction of the shell and in an annular structure, a plurality of anode plates 2 distributed along the length direction of the shell and in an annular structure are movably sleeved on the surface of the cylindrical section of the guide seat, the anode plate 1 is movably sleeved on the outer surface of the cylindrical section of the guide seat, and the anode plate 2 and the anode plate 1 are fixedly connected to the inner wall of the shell by bolts 1, and the plurality of anode plates 1 and the plurality of anode plates 2 are staggered left and right; The inside of the shell is formed by the cooperation of the flow guide seat, a plurality of anode plates one and a plurality of anode plates two to form a flow guide channel capable of prolonging the reaction time between the conveying medium and the anode plates one and two.

2. The corrosion-resistant alloy flange according to claim 1, characterized in that: A drain port 1 is provided on the right side of the guide seat, and a plurality of drain ports 2 distributed along the circumference of the guide seat and connected to the drain port 1 are provided on the peripheral side wall of the guide seat close to the right side, and the drain ports 2 are connected to the guide channel.

3. The corrosion-resistant alloy flange according to claim 2, characterized in that: A retaining sieve plate 1 with an annular structure is fixedly provided inside the connecting pipe 1 by means of bolt 2, a rotating groove 1 extending along its circumferential direction is provided on the surface of the conical section of the guide seat, a rotating ring is rotatably provided on the rotating groove 1, the retaining sieve plate 1 is fixedly sleeved on the surface of the rotating ring, the retaining sieve plate 2 is connected to the internal thread of the drain port 1, and a scraper assembly for cleaning dirt on the surface of the anode plate 1 and the anode plate 2 is provided on the guide seat.

4. The corrosion-resistant alloy flange according to claim 3, characterized in that: The scraper assembly includes a plurality of scrapers, which respectively slide and contact the left and right side walls of anode plate one and anode plate two, and a movable cavity is opened inside the cylindrical section of the guide seat, and the part of the scraper close to the guide seat movably passes through the guide seat and extends into the movable cavity, and the parts of the scrapers located in the movable cavity are commonly fixedly connected with a connecting plate with a T-shaped structure, and the surface of the vertical section of the connecting plate is provided with a plurality of racks composed of tooth blocks, and a rotating shaft is commonly rotatably arranged between the left and right side walls of the movable cavity, and a gear meshing with the rack is fixedly arranged on the rotating shaft, and the left end of the rotating shaft movably passes through the guide seat and is fixedly connected with a rotating disk, and the rotating disk is fixedly arranged on the left end face of the conical section of the guide seat by bolt three, and the vertical section of the connecting plate is slidably connected with a guide rod, and the end of the guide rod away from the connecting plate is fixedly connected to the inner wall of the movable cavity.

5. The corrosion-resistant alloy flange according to claim 1, characterized in that: A worm wheel blade group is fixedly arranged on the left end face of the cone section of the guide seat, a guide ring with an annular structure is fixedly arranged on the right end face of the guide seat, a guide seat is fixedly arranged on the inner wall of the connecting pipe 2 close to the guide ring, a rotating groove 2 matching the guide ring is opened on the left side of the guide seat, a plurality of balls are rotatably arranged on each inner side wall of the rotating groove 2 along its circumferential direction, the guide ring is slidably arranged in the rotating groove 2 and rolls against the balls.

6. The corrosion-resistant alloy flange according to claim 1, characterized in that: The corresponding flange plate 1 and flange plate 2 are fixedly provided with a bite end 1 and a bite end 2 on the side close to each other, and the corresponding bite end 1 and bite end 2 are both annular structures and are interlocked with each other to form a first sealing surface. The cross-section of the first sealing surface is a serrated structure, and a sealing gasket 1 is laid on the first sealing surface. The corresponding flange plate 1 and flange plate 2 are fixedly connected by multiple bolts 4 distributed along the circumferential direction.

7. The corrosion-resistant alloy flange according to claim 1, characterized in that: The right inner wall of the shell and the right side of the ring plate are respectively fixed with a bite end three and a bite end four, both of which are annular structures and are interlocked to form a second sealing surface, the cross-section of the second sealing surface is a serrated structure, and a sealing gasket two is laid on the second sealing surface.

8. The corrosion-resistant alloy flange according to claim 1, characterized in that: The anode plate 1 is composed of three sections of arc-shaped plates 1 which are spliced ​​in sequence, and each section of the arc-shaped plate 1 is fixed on the inner wall of the shell by bolt 1; the anode plate 2 is composed of three sections of arc-shaped plates 2 which are spliced ​​in sequence, and each section of the arc-shaped plate 2 is also fixed on the inner wall of the shell by bolt 1.

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