A steel-lined PTFE tower section

Abstract

This utility model discloses a steel-lined PTFE tower section, which relates to the field of chemical equipment technology. The steel-lined PTFE tower section includes a tower body mechanism. The main body of the tower body mechanism is a bidirectional through-structure on both the upper and lower sides, and a longitudinally arranged guide groove is provided on the inner wall of the tower body mechanism. This utility model achieves rigid fixation between tower sections through the cooperation of connecting discs, connecting holes and bolts. Combined with the guiding and sealing function of the extension components, it effectively prevents the medium from leaking from the connection point. Compared with the existing technology that only relies on flange plane sealing, this structure significantly improves the sealing performance through mechanical positioning and multiple contact interfaces, solving the problem of easy leakage at the connection point of existing tower sections.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically a steel-lined PTFE tower section. Background Technology

[0002] In industries such as chemical and pharmaceutical manufacturing, tower sections are crucial equipment for realizing gas-liquid and liquid-liquid mass transfer processes. A patented steel-lined PTFE tower section (patent publication number CN202146633U) includes a tower body with at least three layers on its inner wall. The inner layer consists of uniformly spaced pure PTFE sheets; the middle layer comprises perforated stainless steel sheets with through holes on the surface of each pure PTFE sheet; and the outer layer is a pure PTFE sheet tightly covering and adhering to the entire inner wall of the tower. This steel-lined PTFE tower section eliminates concerns for vacuum distillation users, significantly reducing equipment maintenance and thus lowering costs. It is particularly effective for separating liquid mixtures containing corrosive media and for distillation requiring vacuum operation. The tower section can be used for extended periods without any issues; it boasts a long service life, resistance to virtually any chemical, and the ability to withstand any negative pressure.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: existing steel-lined PTFE tower sections still have some problems in actual use. For example, the sealing effect of the connection between tower sections is not good, which can easily lead to media leakage, resulting in material waste and potentially causing safety accidents. At the same time, the lining structure inside the tower section is prone to local detachment or damage during long-term use, affecting the service life and corrosion resistance of the tower section. Therefore, we propose a steel-lined PTFE tower section to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a steel-lined PTFE tower section, which solves some problems that still exist in the actual use of existing steel-lined PTFE tower sections. For example, the sealing effect of the connection between tower sections is not good, which can easily lead to media leakage, resulting in material waste and potential safety accidents. At the same time, the lining structure inside the tower section is prone to local detachment or damage during long-term use, affecting the service life and corrosion resistance of the tower section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a steel-lined PTFE tower section, including a tower body mechanism, wherein the main body of the tower body mechanism is a bidirectional through structure on both the upper and lower sides, and a longitudinally arranged guide groove is provided on the inner wall of the tower body mechanism.

[0006] The tower body structure is equipped with an anti-corrosion lining. The main body of the anti-corrosion lining is an arc-shaped structure, and a top plate assembly is fixedly connected to the top surface of the anti-corrosion lining. The top plate assembly is an arc-shaped structure and is used to contact and support the top surface of the tower body structure.

[0007] Preferably, there are four guide grooves arranged in a circular array on the inner wall of the tower body mechanism, and a plug assembly is fixedly connected to the side of the anti-corrosion lining closest to the tower body mechanism.

[0008] Preferably, the insert assembly has a structure that protrudes from the anti-corrosion liner, and each insert assembly has two protrusion assemblies fixedly connected to the outside of the protrusion assembly in opposite directions, and the protrusion assemblies have a structure that protrudes from the insert assembly.

[0009] Preferably, the insert assembly and the protrusion assembly are matched with the guide groove opened on the inner wall of the tower body mechanism, and a limit rod is fixedly connected to the top surface of the top plate assembly, the main body of the limit rod being a screw rod structure.

[0010] Preferably, a limiting nut is screwed onto the outer side of the limiting rod, and the limiting rod and the limiting nut together form a limiting support structure for the reinforced inner ring, and the main body of the reinforced inner ring is a ring structure.

[0011] Preferably, the inner reinforced ring has four through holes arranged in a ring array inside. These through holes pass through positioning holes and match the limiting rods. A connecting plate is fixedly connected to the outer side of the tower body mechanism.

[0012] Preferably, there are two connecting plates, which are fixedly connected to the upper and lower sides of the tower body mechanism in opposite directions. The connecting plates have connecting holes arranged in a ring array inside. Anti-collision components are also fixedly connected to the outer circumference of the tower body mechanism. Weight reduction grooves are arranged in a ring array on the outer circumference of the anti-collision components. Annular extension components are fixedly connected to both the upper and lower sides of the tower body mechanism. Beneficial effects

[0013] This invention provides a steel-lined PTFE tower section. Compared with the prior art, it has the following advantages:

[0014] This steel-lined PTFE tower section achieves rigid fixation between tower sections through the cooperation of connecting discs, connecting holes, and bolts. Combined with the guiding and sealing function of the extension components, it effectively prevents the medium from leaking from the connection points. Compared with the existing technology that relies solely on flange plane sealing, this structure significantly improves sealing performance through mechanical positioning and multiple contact interfaces, solving the problem of easy leakage at the connection points of existing tower sections.

[0015] This steel-lined PTFE tower section features a corrosion-resistant lining that uses a locking structure of insert blocks, protrusions, and guide grooves, along with a reinforced inner ring, limiting rods, and limiting nuts for support. This forms a three-dimensional fixing system of "longitudinal guidance + circumferential limiting + axial compression." Compared to existing technologies where the lining is fixed only by pasting or simple support, this structure can withstand greater media pressure and flow impact, preventing localized lining detachment or damage, extending the tower section's corrosion resistance life, and solving the problem of easy damage to existing lining structures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front side view of the disassembled tower section of this utility model.

[0017] Figure 2 This is a schematic diagram of the combined structure of the tower section of this utility model.

[0018] Figure 3 This is a front view structural diagram of the tower section of this utility model.

[0019] Figure 4 This is a top view of the tower section of this utility model.

[0020] Figure 5 This is a schematic diagram of the combined structure of the anti-corrosion lining and top plate assembly of the tower section of this utility model.

[0021] Figure 6 This is a schematic diagram of the combined structure of the tower body mechanism and anti-collision components of the tower section of this utility model.

[0022] In the diagram: 1. Tower body structure; 101. Connecting plate; 1011. Connecting hole; 1012. Anti-collision component; 1013. Weight reduction groove; 1014. Extension component; 2. Guide groove; 201. Anti-corrosion lining; 2011. Top plate component; 2012. Insert block component; 2013. Protrusion component; 2014. Limiting rod; 2015. Limiting nut; 3. Reinforced inner ring; 301. Passing through positioning hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6This utility model provides a technical solution: a steel-lined PTFE tower section, including a tower body mechanism 1. The main body of the tower body mechanism 1 is a bidirectional through structure on both the upper and lower sides, and a longitudinally arranged guide groove 2 is provided on the inner wall of the tower body mechanism 1.

[0025] The tower body mechanism 1 is equipped with an anti-corrosion lining 201. The main body of the anti-corrosion lining 201 is an arc-shaped structure, and a top plate assembly 2011 is fixedly connected to the top surface of the anti-corrosion lining 201. The top plate assembly 2011 is an arc-shaped structure and is used to contact and support the top surface of the tower body mechanism 1.

[0026] The tower body mechanism 1 adopts a bidirectional through structure with longitudinal guide grooves 2 on the inner wall. The top of the anti-corrosion lining 201 is supported by the arc-shaped top plate assembly 2011 in contact with the top surface of the tower body mechanism 1, which can realize the initial positioning and support of the anti-corrosion lining 201 and provide a foundation for subsequent installation.

[0027] See Figures 1-3 There are four guide grooves 2 in total. The four guide grooves 2 are arranged in a ring array on the inner wall of the tower body mechanism 1. The anti-corrosion lining 201 has a plug block assembly 2012 fixedly connected to the side of the tower body mechanism 1.

[0028] Four guide slots 2 are arranged in a ring array on the inner wall of the tower body structure 1. An insert block assembly 2012 is provided on one side of the anti-corrosion lining 201, so that the anti-corrosion lining 201 can cooperate with the guide slots 2 through the insert block assembly 2012 to achieve circumferential positioning and ensure installation accuracy and stability.

[0029] See Figures 2-5 The insert assembly 2012 has a structure that protrudes from the anti-corrosion liner 201, and each insert assembly 2012 has two protrusion assemblies 2013 fixedly connected to the outside of the protrusion assembly 2012 in opposite directions. The protrusion assembly 2013 has a structure that protrudes from the insert assembly 2012.

[0030] The anti-corrosion liner 201 protrudes through the insert assembly 2012, and two protruding protrusion assemblies 2013 are provided on the opposite side of the insert assembly 2012. The protrusion assembly 2013 cooperates with the guide groove 2 to enhance the firmness of the connection between the anti-corrosion liner 201 and the tower body mechanism 1 and prevent radial movement.

[0031] See Figures 1-2 The insert assembly 2012 and the protrusion assembly 2013 are matched with the guide groove 2 opened on the inner wall of the tower body mechanism 1, and the top plate assembly 2011 is fixedly connected to the top surface of the limit rod 2014, the main body of the limit rod 2014 is a screw rod structure.

[0032] The insert assembly 2012 and the protrusion assembly 2013 are matched with the guide groove 2. The top plate assembly 2011 is provided with a limit rod 2014 with a screw structure, which provides a connection basis for the subsequent fixation and reinforcement of the inner ring 3 by the limit rod 2014 and the limit nut 2015.

[0033] See Figures 5-6 A limiting nut 2015 is screwed onto the outside of the limiting rod 2014. The limiting rod 2014 and the limiting nut 2015 together form a limiting support structure for the reinforced inner ring 3, and the main body of the reinforced inner ring 3 is a ring structure.

[0034] By screwing the limiting nut 2015 onto the outside of the limiting rod 2014, a limiting support structure is formed with the reinforcing inner ring 3. The annular reinforcing inner ring 3 can provide annular support for the anti-corrosion lining 201, enhance the overall structural strength, and prevent the lining from falling off locally.

[0035] See Figures 1-5 The inner ring 3 has four through holes arranged in a ring array inside. These through holes pass through the positioning hole 301 and match the limiting rod 2014. The outer side of the tower body mechanism 1 is fixedly connected to the connecting plate 101.

[0036] The inner ring 3 is reinforced with four through-positioning holes 301 that match the limiting rod 2014. The outer side of the tower body mechanism 1 is provided with a connecting plate 101, so that the inner ring 3 is fixed by the limiting rod 2014, while the connecting plate 101 provides an installation position for the connection between tower sections.

[0037] See Figures 3-4 There are two connecting plates 101. The two connecting plates 101 are fixedly connected to the upper and lower sides of the tower body mechanism 1 in opposite directions. The connecting plates 101 have connecting holes 1011 arranged in a ring array inside. The outer circumferential surface of the tower body mechanism 1 is also fixedly connected to the anti-collision component 1012. The outer circumferential surface of the anti-collision component 1012 has weight reduction grooves 1013 arranged in a ring array. The upper and lower sides of the tower body mechanism 1 are both fixedly connected to the ring structure extension component 1014.

[0038] Two connecting plates 101 are provided on the upper and lower sides of the tower body mechanism 1. The inner part is provided with connecting holes 1011, and the outer periphery is provided with anti-collision components 1012 with weight reduction grooves 1013. The upper and lower sides are provided with extension components 1014. The connecting holes 1011 facilitate bolt connection to fix the tower section. The anti-collision components 1012 can reduce external collision damage. The weight reduction grooves 1013 reduce weight. The extension components 1014 may enhance the connection sealing or guide function.

[0039] During operation, the tower body mechanism 1 is a steel shell that runs through both the top and bottom. Four guide grooves 2 arranged in a ring array are opened longitudinally on its inner wall. The anti-corrosion lining 201 is an arc-shaped polytetrafluoroethylene lining. The insert block assembly 2012 and the protrusion assembly 2013 fixed on its outer side match the shape of the guide groove 2. During installation, the anti-corrosion lining 201 is inserted longitudinally into the tower body mechanism 1 along the guide groove 2, so that the insert block assembly 2012 is embedded in the guide groove 2, and at the same time, the protrusion assembly 2013 is engaged in the corresponding groove of the guide groove 2, so as to achieve circumferential positioning and radial limiting of the anti-corrosion lining 201 and prevent it from rotating or shifting within the tower body mechanism 1.

[0040] The top plate assembly 2011 at the top of the anti-corrosion lining 201 is an arc-shaped structure that contacts and supports the top surface of the tower body mechanism 1, providing initial axial positioning. The limiting rod 2014 fixed on the top plate assembly 2011 is a screw rod structure. After passing through the through positioning hole 301 (the four through holes on the annular reinforcing inner ring 3) of the reinforcing inner ring 3, the reinforcing inner ring 3 is pressed tightly onto the top plate assembly 2011 by tightening the limiting nut 2015. The annular reinforcing inner ring 3 fits tightly against the inner wall of the anti-corrosion lining 201, forming an annular support structure, which evenly distributes the medium pressure on the lining and avoids local stress concentration that could cause the lining to fall off.

[0041] The tower body mechanism 1 has fixed connecting plates 101 on the upper and lower sides. The connecting holes 1011 of the connecting plates 101 are used to pass bolts through to realize the flange connection between adjacent tower sections. During connection, the extension component 1014 (the annular structure at the upper and lower ends of the tower body mechanism 1) is inserted into the corresponding interface of the adjacent tower section to provide guidance and enhance the connection sealing. The anti-collision component 1012 on the outer periphery of the tower body mechanism 1 can buffer external collision impacts and protect the tower section body. The weight reduction groove 1013 on the anti-collision component 1012 reduces the overall weight without affecting the structural strength, making it easy to install and transport.

[0042] In summary, this device, by incorporating the extension component 1014, can achieve extended connection protection.

[0043] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A steel-lined PTFE tower section, comprising a tower body structure (1), characterized in that: The main body of the tower mechanism (1) is a two-way through structure on both the upper and lower sides, and a longitudinally arranged guide groove (2) is provided on the inner wall of the tower mechanism (1). The tower body mechanism (1) is equipped with an anti-corrosion lining (201). The main body of the anti-corrosion lining (201) is an arc-shaped structure, and a top plate assembly (2011) is fixedly connected to the top surface of the anti-corrosion lining (201). The top plate assembly (2011) is an arc-shaped structure and is used to contact and support the top surface of the tower body mechanism (1).

2. The steel-lined PTFE tower section according to claim 1, characterized in that: The guide groove (2) has four sections, which are arranged in a ring array on the inner wall of the tower body mechanism (1). The anti-corrosion lining (201) has a plug assembly (2012) fixedly connected to the side of the tower body mechanism (1) near the anti-corrosion lining (201).

3. A steel-lined PTFE tower section according to claim 2, characterized in that: The insert assembly (2012) has a structure that protrudes from the anti-corrosion liner (201), and each insert assembly (2012) has two protrusion assemblies (2013) fixedly connected to the outside of it in opposite directions. The protrusion assembly (2013) has a structure that protrudes from the insert assembly (2012).

4. A steel-lined PTFE tower section according to claim 3, characterized in that: The insert assembly (2012) and the protrusion assembly (2013) are matched with the guide groove (2) opened on the inner wall of the tower body mechanism (1), and the top plate assembly (2011) is fixedly connected with a limit rod (2014), the main body of the limit rod (2014) is a screw structure.

5. A steel-lined PTFE tower section according to claim 4, characterized in that: The limiting rod (2014) is screwed with a limiting nut (2015) on its outer side. The limiting rod (2014) and the limiting nut (2015) together form a limiting support structure for the reinforced inner ring (3), and the main body of the reinforced inner ring (3) is a ring structure.

6. A steel-lined PTFE tower section according to claim 5, characterized in that: The inner ring (3) of the reinforcement is provided with four through holes in a ring array. The through holes pass through the positioning hole (301) and match the limiting rod (2014). The outer side of the tower body mechanism (1) is fixedly connected to the connecting plate (101).

7. A steel-lined PTFE tower section according to claim 6, characterized in that: There are two connecting plates (101). The two connecting plates (101) are fixedly connected to the upper and lower sides of the tower body mechanism (1) in opposite directions. The connecting plates (101) have connecting holes (1011) arranged in a ring array inside. The tower body mechanism (1) also has anti-collision components (1012) fixedly connected to the outer circumference of the tower body mechanism (1). The anti-collision components (1012) have weight reduction grooves (1013) arranged in a ring array on the outer circumference of the outer circumference of the tower body mechanism (1). The upper and lower sides of the tower body mechanism (1) are both fixedly connected to the extension components (1014) with a ring structure.

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