High-temperature reaction kettle connecting pipeline for surfactant production

Through the design of quick-connect components and multi-layer material structure, the problems of convenient installation and disassembly, corrosion prevention and deformation prevention of the connecting pipes of high-temperature reactors for surfactant production are solved. It realizes an efficient installation and disassembly process, has good sealing and corrosion resistance, and has real-time monitoring function.

CN224245636UActive Publication Date: 2026-05-15GUANGDONG LICHEN AOWEI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LICHEN AOWEI IND CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing high-temperature reactors used for surfactant production have complicated installation and disassembly processes for connecting pipes, which are susceptible to corrosion and deformation, making it difficult to achieve convenient installation and disassembly, corrosion prevention, and deformation prevention.

Method used

It adopts a quick-connect assembly, including a left connector, a first leak-proof sleeve, a sealing ring, a first toothed plate, a right connector, a second leak-proof sleeve, a second toothed plate, a threaded sleeve, and a spring. It combines the material structure of polytetrafluoroethylene layer, fiberglass layer, polyetheretherketone layer, and carbon fiber composite layer, and is equipped with a corrosion monitoring sensor and a thick-walled sensor probe to achieve convenient installation and disassembly, corrosion protection, and deformation prevention.

Benefits of technology

It enables convenient installation and disassembly of connecting pipes for high-temperature reactors, possesses excellent sealing and corrosion resistance, can monitor corrosion in real time, prevents deformation and displacement, and reduces installation and maintenance costs.

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Abstract

The utility model discloses a high-temperature reaction kettle connecting pipeline for producing a surfactant, which relates to the technical field of chemical pipelines and comprises a left pipe, a right pipe is arranged on the right side of the left pipe, and the high-temperature reaction kettle connecting pipeline for producing the surfactant is provided with a first tooth sheet, a right connector and a spring. The first anti-seepage sleeve and the sealing ring are sleeved with the second anti-seepage sleeve, meanwhile, the first tooth piece and the second tooth piece are meshed with each other, then the threaded sleeve is moved to the periphery of the left connector and the periphery of the right connector and screwed tightly, the left connector and the right connector are fixedly connected, and only the threaded sleeve needs to be screwed out of the left connector and the right connector to be disassembled. The anti-seepage device is simple in structure, convenient to use, free of other operation, convenient to mount, dismount and maintain, capable of automatically adjusting fastening force on the first anti-seepage sleeve and the second anti-seepage sleeve due to the fact that the spring is arranged in the sealing ring, adaptive to thermal expansion and cold contraction of the connecting position, high in internal sealing performance of the connecting position, and capable of solving the problem that the device is not easy to mount and dismount.
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Description

Technical Field

[0001] This utility model relates to the field of chemical pipeline technology, specifically a high-temperature reactor connection pipeline for surfactant production. Background Technology

[0002] Chemical pipeline technology is an important part of chemical engineering, involving the installation, connection and operation of chemical equipment. In order to ensure the normal operation of high-temperature surfactant reactors, it is necessary to ensure that the connecting pipelines have good sealing and corrosion resistance. At the same time, the design of the connecting pipelines should facilitate installation and disassembly to reduce installation time and cost. However, at present, the installation and disassembly process of most reactor connecting pipelines is relatively cumbersome and difficult to inspect and maintain.

[0003] Now, a novel high-temperature reactor connection pipe for surfactant production is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature reactor connection pipe for surfactant production, so as to solve the problem of difficulty in installation and disassembly mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature reactor connecting pipe for surfactant production, comprising a left pipe, a right pipe disposed on the right side of the left pipe, and a quick-connect assembly fixedly connected to the right side of the periphery of the left pipe.

[0006] The quick-connect assembly includes a left connector, which is fixedly connected to the right side of the outer periphery of the left pipe. A first leak-proof sleeve is fixedly connected to the right side of the left connector. A sealing ring is fixedly connected to the outer periphery of the first leak-proof sleeve. Multiple sets of first toothed plates are arranged around the outer periphery of the sealing ring. A right connector is fixedly connected to the left side of the outer periphery of the right pipe. A second leak-proof sleeve is fixedly connected to the left side of the right connector. Multiple sets of second toothed plates are arranged around the outer periphery of the second leak-proof sleeve. A threaded sleeve is movably connected to the middle position of the outer periphery of the right pipe. A spring is fixedly connected inside the sealing ring.

[0007] As a further technical solution of this utility model, the shape and size of the outer side of the first seepage-proof sleeve are consistent with the shape and size of the inner side of the second seepage-proof sleeve, the first seepage-proof sleeve can move left and right along the inside of the second seepage-proof sleeve, and the shape and size of the first toothed piece are consistent with the second toothed piece.

[0008] As a further technical solution of this utility model, the first toothed plate and the second toothed plate mesh with each other, and the thread shape inside the threaded sleeve matches the thread shape outside the left connector.

[0009] As a further technical solution of this utility model, the spring is elastic, the first toothed piece is fixedly connected to the left connector, and the second toothed piece is fixedly connected to the right connector.

[0010] As a further technical solution of this utility model, a polytetrafluoroethylene layer is fixedly connected inside the left and right tubes, a fiberglass layer is fixedly connected around the polytetrafluoroethylene layer, a polyetheretherketone layer is fixedly connected around the fiberglass layer, a carbon fiber composite layer is fixedly connected around the polyetheretherketone layer, a sleeve is fixedly connected to the left side of the left tube, a corrosion monitoring sensor is fixedly connected to the top of the sleeve, and a thick-walled sensing probe is fixedly connected to the bottom of the corrosion monitoring sensor.

[0011] As a further technical solution of this utility model, the thick-walled sensing probe coincides with the vertical center line of the left tube, the polyetheretherketone layer is fixedly connected between the fiberglass layer and the carbon fiber composite layer, and the corrosion monitoring sensor is electrically connected to the thick-walled sensing probe.

[0012] As a further technical solution of this utility model, a first sleeve is movably connected to the right side of the outer periphery of the right tube, a first bracket is fixedly connected to the outer periphery of the first sleeve, a bottom tube is fixedly connected to the bottom end of the first bracket, a screw is movably connected to the top end of the bottom tube, a second sleeve is movably connected to the middle position of the outer periphery of the left tube, a second bracket is fixedly connected to the bottom end of the second sleeve, and a low rod is fixedly connected to the right side of the second bracket.

[0013] As a further technical solution of this utility model, the shape and size of the inside of the first sleeve are consistent with the shape and size of the outside of the right tube, and the first sleeve can move left and right along the periphery of the right tube. The shape and size of the inside of the second sleeve are consistent with the shape and size of the outside of the left tube, and the second sleeve can move left and right along the periphery of the left tube. The shape and size of the inside of the low rod are consistent with the shape and size of the outside of the bottom tube, and the low rod can move left and right along the periphery of the bottom tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the high-temperature reactor connecting pipe for surfactant production not only realizes the functions of easy installation and disassembly, but also realizes the functions of corrosion prevention and monitoring, as well as the function of deformation prevention;

[0015] (1) By setting the first toothed plate, the right connector and the spring, when using, you only need to move the right connector to the left so that the first anti-seepage sleeve and the sealing ring are put into the second anti-seepage sleeve. At the same time, the first toothed plate and the second toothed plate mesh with each other. Then move the threaded sleeve to the outside of the left connector and the right connector and rotate and tighten it to fix the left connector and the right connector. Disassembly is also only required to unscrew the threaded sleeve from the left connector and the right connector. No other operation is required. The installation, disassembly and maintenance process is convenient. Because the sealing ring is equipped with a spring, it can automatically adjust the tightening force of the first anti-seepage sleeve and the second anti-seepage sleeve to adapt to the thermal expansion and contraction of the connection. The spring force is stable and can maintain the sealing performance of the connection for a long time. At the same time, the mutual sleeve of the first anti-seepage sleeve and the mutual meshing of the first toothed plate and the second toothed plate make the internal sealing of the connection strong, realizing the function of easy installation and disassembly.

[0016] (2) By setting up a fiberglass layer and a polyether ether ketone layer, when in use, because the surfactant may have a certain degree of corrosiveness, in order to prevent equipment damage caused by corrosion, the inside of the left and right pipes are both lined with polytetrafluoroethylene, which can directly contact the corrosive medium. At the same time, a fiberglass layer is set up to isolate the pipe and prevent the corrosive medium from penetrating to the outer layer. The polyether ether ketone layer further isolates the temperature of the high-temperature medium to prevent high temperature from damaging the pipe. The carbon fiber composite layer on the outermost side enhances the strength and rigidity of the pipe and prevents external forces from damaging the pipe. At the same time, through the thick-walled sensing probe, the corrosion monitoring sensor can detect the degree of corrosion and erosion inside the pipe and perform real-time monitoring, thus realizing the functions of corrosion prevention and monitoring.

[0017] (3) By setting a bottom tube and a low rod, when in use, the first tube sleeve can be moved to the left so that the low rod can be inserted into the bottom tube. Then, the screw is screwed down to abut against the top of the low rod to fix the position of the low rod. At this time, the low rod and the bottom tube are fixedly connected at the bottom end of the connection between the left tube and the right tube. It can be placed horizontally on the ground or fixed on the reactor support to prevent the pipes from falling for a long time, which would cause deformation or displacement at the connection and achieve the anti-deformation function. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is an enlarged cross-sectional view of the sealing ring of this utility model.

[0020] Figure 3 This is an enlarged structural schematic diagram of the front cross-section of the left tube of this utility model;

[0021] Figure 4 This is an enlarged front view cross-sectional diagram of the left and right connectors of this utility model in their combined state.

[0022] In the diagram: 1. Left pipe; 2. Right pipe; 3. Left connector; 4. First anti-seepage sleeve; 5. Sealing ring; 6. First toothed plate; 7. Right connector; 8. Second anti-seepage sleeve; 9. Second toothed plate; 10. Threaded sleeve; 11. Spring; 12. PTFE layer; 13. Fiberglass layer; 14. Polyetheretherketone layer; 15. Carbon fiber composite layer; 16. Sleeve frame; 17. Corrosion monitoring sensor; 18. Thick-walled sensor probe; 19. First pipe sleeve; 20. First support; 21. Bottom pipe; 22. Screw; 23. Second pipe sleeve; 24. Second support; 25. Low rod. 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 Figure 1-4 One embodiment of this utility model is a high-temperature reactor connecting pipe for surfactant production, including a left pipe 1, a right pipe 2 disposed on the right side of the left pipe 1, and a quick-connect assembly fixedly connected to the right side of the periphery of the left pipe 1.

[0025] Please see Figure 1-4 A high-temperature reactor connecting pipe for surfactant production also includes a quick-connect assembly. The quick-connect assembly includes a left connector 3, which is fixedly connected to the right side of the outer periphery of a left pipe 1. A first anti-seepage sleeve 4 is fixedly connected to the right side of the left connector 3. A sealing ring 5 is fixedly connected to the outer periphery of the first anti-seepage sleeve 4, and multiple sets of first toothed plates 6 are arranged around the outer periphery of the sealing ring 5. A right connector 7 is fixedly connected to the left side of the outer periphery of a right pipe 2. A second anti-seepage sleeve 8 is fixedly connected to the left side of the right connector 7, and multiple sets of second toothed plates 9 are arranged around the outer periphery of the second anti-seepage sleeve 8. A movable connection is made at the middle position of the outer periphery of the right pipe 2. A threaded sleeve 10 is attached, and a spring 11 is fixedly connected inside the sealing ring 5. The shape and size of the outside of the first leak-proof sleeve 4 are consistent with the shape and size of the inside of the second leak-proof sleeve 8. The first leak-proof sleeve 4 can move left and right along the inside of the second leak-proof sleeve 8. The shape and size of the first toothed plate 6 and the second toothed plate 9 are consistent. The first toothed plate 6 and the second toothed plate 9 mesh with each other. The thread shape inside the threaded sleeve 10 matches the thread shape outside the left connector 3. The spring 11 is elastic. The first toothed plate 6 is fixedly connected to the left connector 3, and the second toothed plate 9 is fixedly connected to the right connector 7, allowing for quick assembly and disassembly.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, simply move the right connector 7 to the left so that the first leak-proof sleeve 4 and the sealing ring 5 are fitted into the second leak-proof sleeve 8. At the same time, the first toothed plate 6 and the second toothed plate 9 mesh with each other. Then move the threaded sleeve 10 to the outside of the left connector 3 and the right connector 7, and rotate and tighten it to fix the left connector 3 and the right connector 7. Disassembly is also simple; just unscrew the threaded sleeve 10 from the left connector 3 and the right connector 7. No other operations are required. The installation, disassembly, and maintenance process is convenient. Because the sealing ring 5 is equipped with a spring 11, it can automatically adjust the tightening force on the first leak-proof sleeve 4 and the second leak-proof sleeve 8 to adapt to the thermal expansion and contraction at the connection. Moreover, the spring 11 has stable elasticity and can maintain the sealing performance of the connection for a longer period of time. At the same time, the mutual fitting of the first leak-proof sleeve 4 and the second leak-proof sleeve 8 and the mutual meshing of the first toothed plate 6 and the second toothed plate 9 make the internal sealing of the connection strong, which is convenient for quick installation and disassembly.

[0027] The left tube 1 and the right tube 2 are internally fixedly connected with a polytetrafluoroethylene layer 12. The polytetrafluoroethylene layer 12 is fixedly connected with a fiberglass layer 13. The fiberglass layer 13 is fixedly connected with a polyetheretherketone layer 14. The polyetheretherketone layer 14 is fixedly connected with a carbon fiber composite layer 15. The left side of the outer periphery of the left tube 1 is fixedly connected with a sleeve 16. The top of the sleeve 16 is fixedly connected with a corrosion monitoring sensor 17. The bottom of the corrosion monitoring sensor 17 is fixedly connected with a thick-walled sensor probe 18. The thick-walled sensor probe 18 coincides with the vertical center line of the left tube 1. The polyetheretherketone layer 14 is fixedly connected between the fiberglass layer 13 and the carbon fiber composite layer 15. The corrosion monitoring sensor 17 is electrically connected to the thick-walled sensor probe 18, which has strong corrosion resistance.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, during use, because the surfactant may have a certain degree of corrosiveness, in order to prevent equipment damage caused by corrosion, both the left pipe 1 and the right pipe 2 use a polytetrafluoroethylene layer 12 as an inner lining, which can directly contact the corrosive medium. At the same time, a fiberglass layer 13 is provided to isolate the pipe and prevent the corrosive medium from penetrating to the outer layer. The polyetheretherketone layer 14 further isolates the temperature of the high-temperature medium to prevent high temperature from damaging the pipe. The carbon fiber composite layer 15 on the outermost side enhances the strength and rigidity of the pipe and prevents external forces from damaging the pipe. At the same time, through the thick-walled sensing probe 18, the corrosion monitoring sensor 17 can detect the degree of corrosion and erosion inside the pipe and perform real-time monitoring to prevent internal corrosion.

[0029] A first sleeve 19 is movably connected to the right side of the outer periphery of the right tube 2. A first bracket 20 is fixedly connected to the outer periphery of the first sleeve 19. A bottom tube 21 is fixedly connected to the bottom end of the first bracket 20. A screw 22 is movably connected to the top end of the bottom tube 21. A second sleeve 23 is movably connected to the middle position of the outer periphery of the left tube 1. A second bracket 24 is fixedly connected to the bottom end of the second sleeve 23. A low rod 25 is fixedly connected to the right side of the second bracket 24. The shape and size of the inside of the first sleeve 19 are consistent with the shape and size of the outside of the right tube 2. The first sleeve 19 can move left and right along the outer periphery of the right tube 2. The shape and size of the inside of the second sleeve 23 are consistent with the shape and size of the outside of the left tube 1. The second sleeve 23 can move left and right along the outer periphery of the left tube 1. The shape and size of the inside of the low rod 25 are consistent with the shape and size of the outside of the bottom tube 21. The low rod 25 can move left and right along the outer periphery of the bottom tube 21 to prevent it from falling and deforming.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, during use, the first sleeve 19 can be moved to the left so that the lower rod 25 can be inserted into the bottom tube 21. Then, the screw 22 is screwed down to abut against the top of the lower rod 25 to fix the position of the lower rod 25. At this time, the lower rod 25 and the bottom tube 21 are fixedly connected to the bottom end of the connection between the left tube 1 and the right tube 2. It can be placed horizontally on the ground or fixed on the reactor support to prevent the pipes from falling for a long time, which could cause deformation or displacement at the connection and prevent damage caused by external forces.

[0031] Working Principle: In use, this invention is simple: first, move the right connector 7 to the left, allowing the first leak-proof sleeve 4 and sealing ring 5 to fit into the second leak-proof sleeve 8. Simultaneously, the first toothed plate 6 and the second toothed plate 9 engage. Then, move the threaded sleeve 10 to the outside of the left connector 3 and right connector 7, and tighten it to secure the connection. Disassembly is also straightforward; simply unscrew the threaded sleeve 10 from the left connector 3 and right connector 7. No other operations are required, making installation, disassembly, and maintenance convenient. Because the sealing ring 5 contains a spring 11, it automatically adjusts the tightening force on the first leak-proof sleeve 4 and the second leak-proof sleeve 8, adapting to thermal expansion and contraction at the connection. The spring 11 has stable elasticity, maintaining the sealing performance for a longer period. Furthermore, the interlocking of the first leak-proof sleeve 4 and the second leak-proof sleeve 8, along with the engagement of the first toothed plate 6 and the second toothed plate 9, ensures a strong internal seal at the connection. During use, because the surfactant may be corrosive, measures should be taken to prevent equipment damage due to corrosion. The left pipe 1 and right pipe 2 both use polytetrafluoroethylene (PTFE) layer 12 as inner lining, which can directly contact corrosive media. At the same time, fiberglass layer 13 is set to isolate the pipe and prevent corrosive media from penetrating to the outer layer. Polyetheretherketone (PEEK) layer 14 further isolates the temperature of high-temperature media to prevent high temperature from damaging the pipe. Carbon fiber composite layer 15 on the outermost side enhances the strength and rigidity of the pipe and prevents external forces from damaging the pipe. At the same time, the corrosion monitoring sensor 17 can detect the degree of corrosion and erosion inside the pipe through thick-walled sensor probe 18 and perform real-time monitoring. When in use, the first sleeve 19 can be moved to the left so that the low rod 25 is inserted into the bottom pipe 21. Then, the screw 22 is screwed down to abut against the top of the low rod 25 to fix the position of the low rod 25. At this time, the low rod 25 and the bottom pipe 21 are fixedly connected to the bottom end of the connection between the left pipe 1 and the right pipe 2. It can be placed horizontally on the ground or fixed on the reactor support to prevent the pipe from sagging for a long time, which could cause deformation or displacement at the connection.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-temperature reactor connecting pipe for surfactant production, comprising a left pipe (1), characterized in that: A right pipe (2) is provided on the right side of the left pipe (1), and a quick connection component is fixedly connected to the right side of the periphery of the left pipe (1). The quick-connect assembly includes a left connector (3), which is fixedly connected to the right side of the outer periphery of the left pipe (1). A first anti-seepage sleeve (4) is fixedly connected to the right side of the left connector (3). A sealing ring (5) is fixedly connected to the outer periphery of the first anti-seepage sleeve (4). Multiple sets of first toothed plates (6) are arranged around the outer periphery of the sealing ring (5). A right connector (7) is fixedly connected to the left side of the outer periphery of the right pipe (2). A second anti-seepage sleeve (8) is fixedly connected to the left side of the right connector (7). Multiple sets of second toothed plates (9) are arranged around the outer periphery of the second anti-seepage sleeve (8). A threaded sleeve (10) is movably connected to the middle position of the outer periphery of the right pipe (2). A spring (11) is fixedly connected inside the sealing ring (5).

2. The high-temperature reactor connecting pipe for surfactant production according to claim 1, characterized in that: The shape and size of the outside of the first seepage-proof sleeve (4) are consistent with the shape and size of the inside of the second seepage-proof sleeve (8). The first seepage-proof sleeve (4) can move left and right along the inside of the second seepage-proof sleeve (8). The shape and size of the first toothed plate (6) are consistent with the shape and size of the second toothed plate (9).

3. The high-temperature reactor connecting pipe for surfactant production according to claim 1, characterized in that: The first toothed piece (6) and the second toothed piece (9) mesh with each other, and the thread shape inside the threaded sleeve (10) matches the thread shape outside the left connector (3).

4. The high-temperature reactor connecting pipe for surfactant production according to claim 1, characterized in that: The spring (11) is elastic, the first toothed piece (6) is fixedly connected to the left connector (3), and the second toothed piece (9) is fixedly connected to the right connector (7).

5. The high-temperature reactor connecting pipe for surfactant production according to claim 1, characterized in that: The left tube (1) and the right tube (2) are internally fixedly connected with a polytetrafluoroethylene layer (12), the polytetrafluoroethylene layer (12) is fixedly connected with a fiberglass layer (13), the fiberglass layer (13) is fixedly connected with a polyether ether ketone layer (14), the polyether ether ketone layer (14) is fixedly connected with a carbon fiber composite layer (15), the left side of the left tube (1) is fixedly connected with a sleeve (16), the top of the sleeve (16) is fixedly connected with a corrosion monitoring sensor (17), and the bottom of the corrosion monitoring sensor (17) is fixedly connected with a thick-walled sensing probe (18).

6. The high-temperature reactor connecting pipe for surfactant production according to claim 5, characterized in that: The thick-walled sensing probe (18) coincides with the vertical center line of the left tube (1), the polyether ether ketone layer (14) is fixedly connected between the fiberglass layer (13) and the carbon fiber composite layer (15), and the corrosion monitoring sensor (17) is electrically connected to the thick-walled sensing probe (18).

7. The high-temperature reactor connecting pipe for surfactant production according to claim 1, characterized in that: The right side of the outer periphery of the right tube (2) is movably connected to a first sleeve (19), the outer periphery of the first sleeve (19) is fixedly connected to a first bracket (20), the bottom end of the first bracket (20) is fixedly connected to a bottom tube (21), the top end of the bottom tube (21) is movably connected to a screw (22), the middle position of the outer periphery of the left tube (1) is movably connected to a second sleeve (23), the bottom end of the second sleeve (23) is fixedly connected to a second bracket (24), and the right side of the second bracket (24) is fixedly connected to a low rod (25).

8. The high-temperature reactor connecting pipe for surfactant production according to claim 7, characterized in that: The shape and size inside the first sleeve (19) are consistent with the shape and size outside the right tube (2). The first sleeve (19) can move left and right along the periphery of the right tube (2). The shape and size inside the second sleeve (23) are consistent with the shape and size outside the left tube (1). The second sleeve (23) can move left and right along the periphery of the left tube (1). The shape and size inside the low rod (25) are consistent with the shape and size outside the bottom tube (21). The low rod (25) can move left and right along the periphery of the bottom tube (21).