A steel reinforced type super high pressure integrated mould pressing PFA deep removal tower
Patent Information
- Application Number
- CN202522120388.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-30
AI Technical Summary
但现有的衬氟深脱塔将氟化物直接粘合附着或热压在金属外壳内,在长时间的使用中,极易产生氟化内衬脱离金属壳的情况,而在深脱塔内出现高压情况,例如脱硫工艺产生的高压时氟化内衬极易变形破损,很容易导致强酸碱介质进入氟化内衬与金属壳之间对金属壳进行腐蚀;因此,提出一种钢骨增强型超高压一体模压内衬PFA深脱塔,增强防腐蚀内衬的结构强度,防止防腐蚀内衬受到工作过程中产生的高压的破坏
[0013]本实用新型与现有技术相比,其有益效果是:利用增强管为防腐蚀内衬提供支撑,使防腐蚀内衬的内部存在支撑力,在深脱塔内压力较大时,防腐蚀内衬较高的结构强度能够有效降低变形破损的可能;利用防腐蚀内衬贯穿并填充贯穿孔限位孔,提高防腐蚀内衬与增强管之间的结合度,提高增强管对防腐蚀内衬的支撑效果,防止防腐蚀内衬受到工作过程中产生的高压的破坏;防腐蚀内衬采用PFA塑料,PFA塑料即可熔性聚四氟乙烯,其耐腐蚀性和耐高温性极好,防腐蚀内衬覆盖顶盖、底盖以及多个筒状塔体的内壁,使深脱塔能够满足气体组分分离时的耐腐蚀耐高温需求,并能够承受较大压力。
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Figure CN224893796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a deep stripping tower, and more particularly to a steel-reinforced ultra-high pressure integrated molded PFA deep stripping tower. Background Technology
[0002] Deep desulfurization towers are equipment used in chemical production, commonly found in petrochemical, pharmaceutical, chemical, and food processing industries. They are primarily used in desulfurization, distillation, and absorption processes. During prolonged operation, they are prone to aging, such as corrosion of the external metal components leading to leaks. Therefore, existing technologies have evolved to include fluorinated deep desulfurization towers, which add a fluoride lining to the metal casing to make the tower resistant to acids, alkalis, and high temperatures, enabling it to withstand strong acid and alkali media such as sulfuric acid, hydrogen peroxide, and concentrated nitric acid, as well as high-temperature environments. However, existing fluorinated deep desulfurization towers directly adhere or heat-press the fluoride into the metal shell. Over long-term use, the fluorinated lining is highly susceptible to detachment from the metal shell. Under high pressure conditions within the deep desulfurization tower, such as the high pressure generated in desulfurization processes, the fluorinated lining is easily deformed and damaged, allowing strong acid and alkali media to enter between the fluorinated lining and the metal shell, corroding the metal shell. Therefore, a steel-reinforced, ultra-high-pressure integrated molded PFA deep desulfurization tower is proposed to enhance the structural strength of the corrosion-resistant lining and prevent damage from the high pressure generated during operation. Utility Model Content
[0003] Purpose of the utility model: To provide a steel-reinforced ultra-high pressure integrated molded PFA deep-desorption tower, which enhances the structural strength of the anti-corrosion lining and prevents the anti-corrosion lining from being damaged by the high pressure generated during operation.
[0004] Technical Solution: The steel-reinforced ultra-high pressure integrated molded lined PFA deep extraction tower provided by this utility model includes a top cover, a bottom cover, and multiple cylindrical tower bodies; the cylindrical tower bodies are coaxially connected; the top cover is connected to the top of the top cylindrical tower body, and a gas outlet pipe is provided on the top cover; the bottom cover is connected to the bottom of the bottom cylindrical tower body, and a liquid outlet pipe assembly is provided on the bottom cover; a distributor for uniformly distributing liquid is installed in the top cylindrical tower body, and the distributor is connected to the liquid inlet pipe extending into the top cylindrical tower body; a gas inlet pipe is fixed through the bottom cylindrical tower body; a filter structure is provided in the remaining cylindrical tower bodies; a reinforcing pipe is installed in each cylindrical tower body; several limiting holes are provided on each reinforcing pipe; the top cover, bottom cover, liquid inlet pipe, and the inner wall of each cylindrical tower body are covered with an anti-corrosion lining; the anti-corrosion lining on each cylindrical tower body wraps around the corresponding reinforcing pipe and penetrates and fills the limiting holes on the corresponding reinforcing pipe.
[0005] Furthermore, mounting flanges are provided at the openings of the top cover, the bottom cover, and the two pipe openings of each cylindrical tower body; sealing flanges are integrally installed on the anti-corrosion linings of the top cover, the bottom cover, and each cylindrical tower body, pressing against the corresponding mounting flanges; the two mounting flanges installed together are tightly pressed against the corresponding sealing flanges.
[0006] Furthermore, multiple pairs of fixing strips are fixed at intervals and at an angle on the inner wall of the cylindrical tower body; the inclination direction of the same pair of fixing strips is opposite; and each limiting strip with its edge inserted between each fixing strip and the cylindrical tower body is fixed at an angle on the outer wall of the reinforcing tube.
[0007] Furthermore, the distributor includes a main pipe and two sets of branch pipes; a uniform distribution support ring is integrally installed on the anti-corrosion lining of the top cylindrical tower body; one end of the main pipe is connected to the inlet end of the liquid inlet pipe, and the other end is closed; both sets of branch pipes are connected to the main pipe in a continuous manner, and their ends are closed and supported on the uniform distribution support ring, and are symmetrical about the axis of the main pipe; multiple liquid outlet holes are provided on each branch pipe.
[0008] Furthermore, the filter structure includes a support plate and packing material; a lower support ring is integrally provided on the lower side of the anti-corrosion lining of the cylindrical tower body on which the filter structure is installed; the edge of the support plate is supported on the lower support ring; the packing material is placed on the support plate to fill the corresponding cylindrical tower body.
[0009] Furthermore, the filter structure also includes a redistributor; the redistributor includes a distribution disc and several redistribution tubes; an upper support ring is integrally provided on the upper side of the anti-corrosion lining of the cylindrical tower body on which the filter structure is installed; each redistribution tube is evenly distributed on the distribution disc, with its lower end penetrating the distribution disc and its upper end closed; redistribution holes are provided on the tube wall of the redistribution tubes located on the upper side of the distribution disc; air outlet holes are provided on the tube wall of the redistribution tubes located on the upper side of the redistribution holes; the edge of the distribution disc is used to support the upper support ring; packing fills the space between the redistributor and the support plate.
[0010] Furthermore, each cylindrical tower body is provided with a manhole; the manhole includes an inspection pipe and a pipe cover; the inspection pipe is fixedly connected to the lower side of the circumferential side wall of the cylindrical tower body; the pipe cover is suspended and installed on the inspection pipe to seal the pipe opening.
[0011] Furthermore, a positioning seat for supporting the bottom cover is fixed on the outer wall of the bottom cover.
[0012] Furthermore, two lifting lugs are fixed on the top cover and each cylindrical tower body.
[0013] Compared with the prior art, the advantages of this invention are as follows: The reinforcing tube provides support for the anti-corrosion lining, creating internal support. Under high pressure within the deep separation tower, the high structural strength of the anti-corrosion lining effectively reduces the possibility of deformation and damage. The anti-corrosion lining penetrates and fills the through-holes and limiting holes, improving the bonding between the anti-corrosion lining and the reinforcing tube, enhancing the supporting effect of the reinforcing tube on the anti-corrosion lining, and preventing damage from the high pressure generated during operation. The anti-corrosion lining is made of PFA plastic, which is fusible polytetrafluoroethylene (PTFE), possessing excellent corrosion resistance and high-temperature resistance. The anti-corrosion lining covers the top cover, bottom cover, and the inner walls of multiple cylindrical tower bodies, enabling the deep separation tower to meet the corrosion and high-temperature resistance requirements during gas component separation and to withstand significant pressure. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the cylindrical tower body of this utility model;
[0016] Figure 3 This is a partially enlarged cross-sectional view of the cylindrical tower body of this utility model;
[0017] Figure 4 This is a schematic diagram of the distributor of this utility model;
[0018] Figure 5 This is a schematic diagram of the redistributor of this utility model;
[0019] Figure 6 This is a schematic diagram of the support plate of this utility model;
[0020] In the diagram: 1. Top cover; 2. Bottom cover; 3. Cylindrical tower body; 301. Corrosion-resistant lining; 302. Sealing flange; 303. Pipe cover; 304. Inspection pipe; 305. Reinforcing pipe; 306. Limiting strip; 307. Fixing strip; 4. Distributor; 401. Liquid inlet pipe; 402. Main pipe; 403. Branch pipe; 404. Liquid outlet; 405. Distributor support ring; 5. Distribution plate; 501. Distribution pipe; 502. Annular groove; 503. Gas outlet; 504. Redistribution hole; 6. Support plate; 601. Annular flange; 602. Lower support ring; 7. Gas inlet pipe; 8. Liquid outlet pipe assembly; 9. Positioning seat; 10. Mounting flange; Detailed Implementation
[0021] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0023] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example 1:
[0025] like Figure 1-6 As shown, the present invention provides a steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower, comprising: a top cover 1, a bottom cover 2, and multiple cylindrical tower bodies 3; the number of cylindrical tower bodies is at least three; each cylindrical tower body 3 is coaxially connected; a distributor 4 for uniformly distributing liquid material is installed inside the top cylindrical tower body 3, and the inlet of the distributor 4 is connected to a liquid material inlet pipe 401 extending into the top cylindrical tower body 3; the top cover 1 is connected to the upper end of the top cylindrical tower body 3, and a gas outlet pipe is connected to the top of the top cover 1; the bottom cover 2 is connected to the lower end of the bottom cylindrical tower body 3, and a liquid material outlet pipe assembly 8 is connected to the bottom of the bottom cover 2; and a liquid material outlet pipe assembly 8 is connected to the bottom cylindrical tower body 3. A gas inlet pipe 7 is fixed through the side wall; a filter structure is provided in each of the remaining cylindrical tower bodies 3; a reinforcing pipe 305 is coaxially installed in each cylindrical tower body 3; several limiting holes are provided on each reinforcing pipe 305; anti-corrosion linings 301 are provided on the top cover 1, bottom cover 2, liquid inlet pipe 401 and the inner wall of each cylindrical tower body 3; the anti-corrosion lining 301 on the top cover 1 extends and covers the inner wall of the gas outlet pipe; the anti-corrosion lining 301 on the bottom cover 2 extends and covers the inner wall of the liquid outlet pipe assembly 8; the anti-corrosion lining 301 on each cylindrical tower body 3 wraps around the corresponding reinforcing pipe 305 and penetrates and fills each limiting hole on the corresponding reinforcing pipe 305.
[0026] The reinforcing tube 305 provides support for the anti-corrosion lining 301, giving it internal support. Under high pressure within the deep separation tower, the high structural strength of the anti-corrosion lining 301 effectively reduces the possibility of deformation and damage. The anti-corrosion lining 301 penetrates and fills the through-hole limiting holes, improving the bonding between the anti-corrosion lining 301 and the reinforcing tube 305, enhancing the support effect of the reinforcing tube 305 on the anti-corrosion lining 301, and preventing damage from the high pressure generated during operation. The anti-corrosion lining 301 is made of PFA plastic, which is fusible polytetrafluoroethylene (PTFE) with excellent corrosion resistance and high-temperature resistance. The anti-corrosion lining 301 covers the inner walls of the top cover 1, bottom cover 2, and multiple cylindrical tower bodies 3, enabling the deep separation tower to meet the corrosion and high-temperature resistance requirements during gas component separation and to withstand significant pressure.
[0027] Furthermore, mounting flanges 10 are provided at the openings of the top cover 1, the bottom cover 2, and the two pipe openings of each cylindrical tower body 3; sealing flanges 302 are integrally provided at the openings of the anti-corrosion lining 301 on the top cover 1, the openings of the anti-corrosion lining 301 on the bottom cover 2, and the two pipe openings of the anti-corrosion lining 301 on each cylindrical tower body 3, pressing against the corresponding mounting flanges 10; the two mounting flanges 10 installed together tightly press against the corresponding sealing flanges 302.
[0028] The sealing flange 302 can improve the sealing effect between the top cover 1, the bottom cover 2, and each cylindrical tower body 3, and also plays a certain positioning role for the anti-corrosion lining 301.
[0029] Furthermore, multiple pairs of fixing strips 307 are fixed at intervals and at an angle on the inner wall of the cylindrical tower body 3, with the long side of the fixing strips 307 parallel to the axis of the cylindrical tower body 3; the inclination directions of the same pair of fixing strips 307 are opposite; multiple limiting strips 306 are fixed at an angle on the outer wall of the reinforcing tube 305; the edges of each limiting strip 306 are inserted and fixed between each fixing strip 307 and the cylindrical tower body 3. By using the insertion and installation method of the fixing strips 307 and the limiting strips 306, the circumferential and radial limiting of the reinforcing tube 305 can be achieved, and the fixing strips 307 and the limiting strips 306 can be fixed by welding, thereby providing a certain axial positioning effect for the reinforcing tube 305. The limiting strips 306 can also act as reinforcing ribs, improving the strength of the reinforcing tube 305 and ensuring the supporting effect of the reinforcing tube 305 on the anti-corrosion lining 301.
[0030] Furthermore, the distributor 4 includes a main pipe 402 and two sets of branch pipes 403; a distribution support ring 405 is integrally and coaxially arranged on the inner wall of the anti-corrosion lining 301 of the top cylindrical tower body 3; one end of the main pipe 402 is connected to the extension end of the liquid inlet pipe 401, and the other end is closed and supported on the distribution support ring 405; each branch pipe 403 in the same set is connected and fixed to the main pipe 402 at intervals at one end, and closed and supported on the distribution support ring 405 at the other end, and the two sets of branch pipes 403 are symmetrical about the axis of the main pipe 402; multiple liquid outlet holes 404 are provided on each branch pipe 403.
[0031] By utilizing the symmetrical arrangement of two sets of branch pipes 403 and the spaced installation of the branch pipes 403, the liquid outlet 404 can evenly distribute the liquid, ensuring that the filtration structure can uniformly adhere the liquid.
[0032] Furthermore, the filter structure includes a support plate 6 and packing material; a lower support ring 602 is integrally and coaxially fixed on the lower side of the anti-corrosion lining 301 of the cylindrical tower body 3 on which the filter structure is installed; the support plate 6 is grid-shaped; reinforcing steel bars are provided in each grid of the support plate 6; an annular flange 601 supporting the lower support ring 602 is integrally provided on the circumferential edge of the support plate 6; the packing material is placed on the support plate 6 to fill the corresponding cylindrical tower body 3.
[0033] The support plate 6 supports the packing material, so that the liquid material evenly distributed by the distributor 4 covers the packing material. When the gas material rises, it comes into contact with the liquid material on the surface of the packing material and reacts to clean the gas material. The grid structure of the support plate 6 facilitates air circulation, and the reinforcing steel can improve the structural strength of the support plate 6.
[0034] Furthermore, the filter structure also includes a redistributor; the redistributor includes a distribution disc 5 and several redistribution pipes 501; an upper support ring is integrally and coaxially provided on the upper side of the anti-corrosion lining 301 of the cylindrical tower body 3 on which the filter structure is installed.
[0035] The lower end of each redistribution pipe 501 is fixed through the distribution plate 5, and the upper end is closed. The redistribution pipes 501 are evenly distributed in an array on the distribution plate 5. A redistribution hole 504 is provided on the pipe wall of each redistribution pipe 501 located on the upper side of the distribution plate 5, and all redistribution holes 504 are located at the same height. An air outlet 503 is provided on the pipe wall of each redistribution pipe 501 located on the upper side of the redistribution hole 504.
[0036] An annular groove 502 is provided on the lower circumferential edge of the distribution disc 5 to support the upper support ring; the filler is filled between the redistributor and the support plate 6.
[0037] A steel frame is installed inside the distribution plate 5 to avoid the redistribution pipe 501.
[0038] By utilizing the fact that the redistribution holes 504 are located at the same height, the liquid falling onto the distribution plate 5 does not flow down immediately, but accumulates to a certain height and flows down together from each redistribution hole 504, effectively achieving a uniform distribution effect. The upper end of the redistribution pipe 501 is sealed to prevent dripping liquid from directly passing through the redistributor. The vent hole 503 allows air to pass through, preventing bubbling at the redistribution holes 504 and further ensuring a uniform distribution effect. When there are more than three cylindrical tower bodies 3, the topmost cylindrical tower body 3 with a filter structure does not need a redistributor, while the remaining cylindrical tower bodies 3 with filter structures all need redistributors. The redistributor collects the liquid flowing down from the top, allowing it to be evenly distributed and dripped onto the packing again, ensuring that the gas and liquid come into full contact and react. Increasing the number of cylindrical tower bodies 3 as needed, along with the distributor 4 and redistributor, ensures that the gas and liquid in the cylindrical tower bodies 3 react fully, thereby achieving thorough cleaning of the gas.
[0039] Furthermore, each cylindrical tower body 3 is provided with a manhole; the manhole includes an inspection pipe 304 and a pipe cover 303; the inspection pipe 304 is fixedly connected to the lower side of the circumferential side wall of the cylindrical tower body 3; the anti-corrosion lining inside the cylindrical tower body 3 extends and covers the inner wall of the inspection pipe 304; an inclined arm is fixed on the upper side of the pipe opening of the inspection pipe 304; a suspension rod is hinged to the end of the inclined arm; the pipe cover 303 is used to seal the pipe opening of the inspection pipe 304, and its edge is hinged to the end of the suspension rod; an anti-corrosion layer is provided on the sealing side of the pipe cover 303.
[0040] The manhole facilitates observation and maintenance of the interior of each cylindrical tower body 3; the combination of the inclined arm and the suspension rod provides suspension support for the pipe cover 303, preventing the pipe cover 303 from falling off during disassembly.
[0041] Furthermore, a positioning seat 9 for supporting the bottom cover 2 is fixed on the outer wall of the bottom cover 2; the end of the liquid outlet pipe assembly 8 extends out of the positioning seat 9. The positioning seat 9 supports the bottom cover 2, making the bottom cover 2 suspended in the air, reserving installation space for the liquid outlet pipe assembly 8, ensuring that the liquid outlet pipe assembly 8 is located at the bottom of the bottom cover 2, and ensuring that the liquid can be discharged.
[0042] Furthermore, two lifting lugs are fixed to the outer wall of the top cover 1 and the circumferential side walls of each cylindrical tower body 3. The lifting lugs facilitate the suspension of the top cover 1 and the cylindrical tower body 3 for installation.
[0043] In the steel-reinforced ultra-high pressure integrated molded PFA deep desorption tower provided by this utility model, the anti-corrosion lining 301, anti-corrosion layer, distributor 4, support plate 6, packing and redistributor are all made of PFA plastic. PFA plastic is fusible polytetrafluoroethylene, which has excellent corrosion resistance and high temperature resistance.
[0044] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.
Claims
1. A steel-reinforced ultra-high pressure integrated molded PFA deep stripping tower, characterized in that: It includes a top cover (1), a bottom cover (2), and multiple cylindrical tower bodies (3); each cylindrical tower body (3) is coaxially connected; the top cover (1) is connected to the top of the top cylindrical tower body (3), and a gas outlet pipe is provided on the top cover (1); the bottom cover (2) is connected to the bottom of the bottom cylindrical tower body (3), and a liquid outlet pipe assembly (8) is provided on the bottom cover (2); a distributor (4) for uniformly distributing liquid is installed inside the top cylindrical tower body (3), and the distributor (4) is connected to the liquid inlet pipe (401) extending into the top cylindrical tower body (3); on the bottom cylindrical tower body (3) A gas feed inlet pipe (7) is fixed through the structure; a filter structure is provided in each of the remaining cylindrical tower bodies (3); a reinforcing pipe (305) is installed in each cylindrical tower body (3); several limiting holes are provided on each reinforcing pipe (305); anti-corrosion lining (301) is provided on the top cover (1), bottom cover (2), liquid feed inlet pipe (401) and the inner wall of each cylindrical tower body (3); the anti-corrosion lining (301) on each cylindrical tower body (3) wraps the corresponding reinforcing pipe (305) and penetrates and fills each limiting hole on the corresponding reinforcing pipe (305).
2. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: Mounting flanges (10) are provided at the opening of the top cover (1), the opening of the bottom cover (2), and the two pipe openings of each cylindrical tower body (3); sealing flanges (302) are integrally provided on the anti-corrosion lining (301) of the top cover (1), the bottom cover (2), and each cylindrical tower body (3) and are pressed onto the corresponding mounting flanges (10); the two mounting flanges (10) installed together are pressed tightly against the corresponding sealing flanges (302).
3. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: Multiple pairs of fixing strips (307) are fixed at intervals on the inner wall of the cylindrical tower body (3); the inclination directions of the same pair of fixing strips (307) are opposite; and each limiting strip (306) with its edge inserted between each fixing strip (307) and the cylindrical tower body (3) is fixed at an angle on the outer wall of the reinforcing tube (305).
4. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: The distributor (4) includes a main pipe (402) and two sets of branch pipes (403); a uniform support ring (405) is integrally provided on the anti-corrosion lining (301) of the top cylindrical tower body (3); one end of the main pipe (402) is connected to the extension end of the liquid inlet pipe (401), and the other end is closed; the two sets of branch pipes (403) are connected to the main pipe (402) in a continuous manner, and the ends are closed and supported on the uniform support ring (405), and are symmetrical about the axis of the main pipe (402); multiple liquid outlet holes (404) are provided on each branch pipe (403).
5. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: The filter structure includes a support plate (6) and packing; a lower support ring (602) is integrally provided on the lower side of the anti-corrosion lining (301) of the cylindrical tower body (3) on which the filter structure is installed; the edge of the support plate (6) is supported on the lower support ring (602); the packing is placed on the support plate (6) for filling the corresponding cylindrical tower body (3).
6. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 5, characterized in that: The filter structure also includes a redistributor; the redistributor includes a distribution disc (5) and several redistribution tubes (501); an upper support ring is integrally provided on the upper side of the anti-corrosion lining (301) of the cylindrical tower body (3) on which the filter structure is installed; each redistribution tube (501) is evenly distributed on the distribution disc (5), and its lower end penetrates through the distribution disc (5) and its upper end is closed; a redistribution hole (504) is provided on the tube wall of the redistribution tube (501) located on the upper side of the distribution disc (5); an air outlet hole (503) is provided on the tube wall of the redistribution tube (501) located on the upper side of the redistribution hole (504); the edge of the distribution disc (5) is used to support the upper support ring; the packing fills the space between the redistributor and the support plate (6).
7. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: A manhole is provided on each cylindrical tower body (3); the manhole includes an inspection pipe (304) and a pipe cover (303); the inspection pipe (304) is fixed to the lower side of the circumferential side wall of the cylindrical tower body (3); the pipe cover (303) is suspended on the inspection pipe (304) to seal the opening of the inspection pipe (304).
8. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: A positioning seat (9) for supporting the bottom cover (2) is fixed on the outer wall of the bottom cover (2).
9. The steel-reinforced ultra-high pressure integrated molded lined PFA deep stripping tower according to claim 1, characterized in that: Two lifting lugs are fixed on the top cover (1) and each cylindrical tower body (3).