A diaphragm pump delivery device and a method of delivering organic fluoro-intermediate synthesis

Abstract

The application belongs to the technical field of pump body conveying, and particularly discloses a diaphragm pump conveying device and an organic fluorine intermediate synthesis conveying method, which comprises a base, a pump body, a driving piece, diaphragm driving mechanisms, a discharge pipe and a feeding pipe. Two groups of diaphragm driving mechanisms are arranged on the two sides of the inside of the pump body. The driving piece penetrates the inside of the pump body at one end to drive the diaphragm driving mechanisms to move. The driving piece is fixedly installed above the base. Two groups of the diaphragm driving mechanisms are both connected with vertical pipes on the sides away from each other. The discharge pipe is located above the two vertical pipes. The feeding pipe is located below the two vertical pipes. The discharge pipe and the feeding pipe are all three-way pipes. The upper end of the vertical pipe on the same side is connected with the discharge pipe, and the lower end is connected with the feeding pipe. The application solves the problems of vibration leakage, unstable sealing, difficult-to-detect leakage, and is reliable in sealing, reduces vibration and loosening, timely in monitoring, and is suitable for safe conveying of organic fluorine intermediates.

Description

Technical Field

[0001] This invention belongs to the field of pump conveying technology, and specifically discloses a diaphragm pump conveying device and a method for conveying organic fluorine intermediates in synthesis. Background Technology

[0002] Organofluorine intermediates are key raw materials in the synthesis of fine chemicals, pharmaceuticals and new materials. In the synthesis process, they are mostly in liquid form or contain trace amounts of gaseous components. The transportation process requires stable media, no leakage and no cross-contamination. Volumetric transportation is usually used to ensure stable flow and safe transportation.

[0003] Diaphragm pumps, due to their structure which uses a diaphragm to isolate the drive components from the conveying medium, can stably convey organofluorine synthesis intermediates. They also have advantages such as good self-priming ability, uniform flow, and suitability for continuous chemical production, making them commonly used conveying equipment in the current organofluorine intermediate synthesis process.

[0004] Existing diaphragm pumps generally use traditional flange structures to connect the pump body to the pipeline. This type of connection is a vertically guided force-bearing form. Under the continuous vibration generated by the periodic bulging of the diaphragm, the sealing surface is prone to loosening and displacement, leading to a decrease in the sealing performance of the interface and consequently causing media leakage.

[0005] Meanwhile, traditional flange connections rely solely on a single sealing gasket for sealing, lacking a protective enclosure structure. Minor leaks are difficult to detect in a timely manner, posing material losses and production safety hazards. Furthermore, the lack of a dedicated vibration damping structure at the interface location means that vibration stress cannot be effectively dispersed, which can easily lead to sealing failure and loosening of the connection over long-term operation.

[0006] After a leak occurs, it is difficult to quickly and intuitively identify the location and extent of the leak on-site. The lack of timely and clear leak warnings can easily lead to material loss and potential production hazards.

[0007] The aforementioned problems have hindered the stable application of diaphragm pumps in the synthesis and transportation of organofluorine intermediates. Therefore, it is urgent to improve the existing transportation devices and methods to solve technical problems such as flange leakage caused by vibration, poor leakage detection, and poor connection sealing. Summary of the Invention

[0008] The purpose of this invention is to solve the problems existing in the background art, and to propose a diaphragm pump conveying device, including a base, a pump body, a drive component, a diaphragm agitation mechanism, a discharge pipe, and a feed pipe. A set of diaphragm agitation mechanisms is respectively arranged on both sides inside the pump body. One end of the drive component penetrates inside the pump body to drive the movement of the diaphragm agitation mechanism. The drive component is fixedly installed above the base. Vertical pipes are connected to the sides of the two sets of diaphragm agitation mechanisms that are far apart from each other. The discharge pipe is located above the two vertical pipes, and the feed pipe is located below the two vertical pipes. Both the discharge pipe and the feed pipe are T-junctions. The upper end of one of the vertical pipes is connected to the discharge pipe, and the lower end is connected to the feed pipe. Two sets of symmetrical and mutually abutting arc-shaped sealing shells are provided at the connection between the vertical pipe and the discharge pipe and the feed pipe. A sealing adsorption component is provided inside each of the two arc-shaped sealing shells. A clamping buffer component is provided on the upper and lower edges of each of the two arc-shaped sealing shells. A stop block is provided on the outer wall of each of the two arc-shaped sealing shells away from the vertical pipe. A locking component is provided inside each of the two stop blocks. A leakage sensor is provided above one of the arc-shaped sealing shells. An interconnected inner cavity is provided inside each of the two arc-shaped sealing shells.

[0009] In the above technical solution, the sealing adsorption component further includes a sealing ring sleeve fixedly installed inside the arc-shaped sealing shell. The sealing ring sleeve is arc-shaped, and a porous fluororubber elastic strip is installed inside the arc-shaped sealing shell.

[0010] In the above technical solution, furthermore, multiple shaping rods are fixedly installed on the inner top and bottom walls of the arc-shaped sealing shell, and one end of the multiple shaping rods that are close to each other is connected to the outer surface of the porous fluororubber elastic strip.

[0011] In the above technical solution, the further embodiment of the clamping buffer includes a sliding shell fixedly installed above the arc-shaped sealing shell and near the middle. A sliding groove is provided on one side of the inner side of the sliding shell. A slider is slidably installed inside the sliding shell. Abutment posts are symmetrically installed on the outer surface of the slider. Both abutment posts are inclined downwards. A support rod is fixedly installed at one end of the slider and near the inner side of the sliding groove.

[0012] In the above technical solution, the upper and lower edges of the arc-shaped sealing shell are both processed into bevels, and the ends of the two abutments away from the slider are connected to an arc-shaped abutment strip, with one outer surface of the arc-shaped abutment strip abutting against the outside of the bevel.

[0013] In the above technical solution, the four support rods on the same side away from the sliding shell are jointly installed with a connecting rod. Each connecting rod is fixedly sleeved with a locking plate near the abutment block, and two locking plates that are close to each other are arranged in an alternating manner.

[0014] In the above technical solution, the locking component further includes a locking pin threaded through the lower part of the abutment block, one end of which penetrates the interior of two sets of staggered locking plates.

[0015] A method for transporting an organofluorine intermediate during synthesis, using the aforementioned diaphragm pump transport device, includes the following steps:

[0016] S1: The driving component drives the diaphragm agitation mechanism on both sides inside the pump body to periodically agitate, so that the organic fluorine intermediate medium enters the vertical pipe from the feed pipe and is discharged through the discharge pipe, thus completing the medium transportation.

[0017] S2: Two sets of arc-shaped sealing shells symmetrically abut against the connection between the vertical pipe, the discharge pipe, and the feed pipe to wrap and seal the pipe interface, and the sealing adsorption component inside the arc-shaped sealing shell is used to improve the sealing effect of the interface.

[0018] S3: The vibration generated by the operation of the diaphragm agitation mechanism is absorbed by the abutting buffers at the upper and lower edges of the arc-shaped sealing shell, reducing the impact of vibration on the sealing performance of the pipeline interface;

[0019] S4: The arc-shaped sealing shell is locked and fixed by the locking element inside the abutment block to maintain the stability of the sealing structure;

[0020] S5: The leakage sensor above the arc-shaped sealing shell monitors in real time whether a medium leak occurs at the pipeline interface, and collects the leaked medium through the interconnected internal cavities inside the arc-shaped sealing shell to achieve timely detection of the leakage signal.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This invention provides two sets of symmetrically abutting arc-shaped sealing shells at the connection points of the vertical pipe, the discharge pipe, and the feed pipe, and in conjunction with internal sealing adsorption components, to form a full-range enveloping seal for the pipe interface, effectively improving the sealing stability at the interface and preventing media leakage.

[0023] 2. This invention adopts an inclined clamping structure that combines a sloping surface with an inclined arc-shaped pressure strip, avoiding the vertical guiding force defects of traditional flanges. Combined with a porous fluororubber elastic strip, which relies on its own capillary adsorption, elastic sealing and buffering vibration reduction characteristics, it forms a second layer of protection. It can adsorb a small amount of leakage medium at the interface and absorb vibration impact, significantly reducing the impact of vibration on the interface sealing performance and preventing the sealing surface from shifting and the connection from loosening.

[0024] 3. This invention reliably locks and fixes the arc-shaped sealing shell with locking components, so that the sealing structure remains in a tight fit under continuous vibration conditions, further enhancing the structural strength and sealing reliability of the pipeline connection. It structurally solves the problem of poor sealing performance of traditional flange connections and provides convenience for the installation of traditional flange connections.

[0025] 4. This invention sets a leakage sensor on the arc-shaped sealing shell and uses the interconnected internal cavities inside the sealing shell to collect a small amount of leaking medium. It can monitor the leakage status of the pipeline interface in real time and accurately, realize the rapid detection and clear prompting of leakage signals, avoid the expansion of leakage hazards, and improve the safety and controllability of the production process. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the arc-shaped sealing shell of the present invention assembled on the outside of both ends of the vertical pipe;

[0027] Figure 2 This is another schematic diagram of the overall structure of the arc-shaped sealing shell of the present invention assembled on the outside of both ends of the vertical pipe;

[0028] Figure 3 This is a schematic diagram of the overall structural connections of the present invention;

[0029] Figure 4 This is a schematic diagram of the connection structure of the sealing adsorption component inside the arc-shaped sealing shell of the present invention installed between the discharge pipe and the vertical pipe;

[0030] Figure 5 This is a schematic diagram of the connection between two sets of mutually abutting arc-shaped sealing shells of the present invention;

[0031] Figure 6 This is another schematic diagram of the connection structure between the two sets of mutually abutting arc-shaped sealing shells of the present invention;

[0032] Figure 7 This is a schematic diagram of the connection structure between the locking component and the frame rod of the present invention.

[0033] In the diagram: 1. Base; 2. Pump body; 3. Drive unit; 4. Discharge pipe; 5. Slide groove; 6. Sliding shell; 7. Vertical pipe; 8. Feed pipe; 9. Arc-shaped sealing shell; 10. Diaphragm agitation mechanism; 11. Connecting rod; 12. Frame rod; 13. Arc-shaped pressure strip; 14. Porous fluororubber elastic strip; 15. Sealing ring; 16. Shaping rod; 17. Inclined surface; 18. Leakage sensor; 19. Clamping plate; 20. Clamping pin; 21. Sliding block; 22. Abutment column; 23. Abutment block. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1-7 The diaphragm pump conveying device shown includes a base 1, a pump body 2, a drive unit 3, a diaphragm agitation mechanism 10, a discharge pipe 4, and a feed pipe 8. A set of diaphragm agitation mechanisms 10 is respectively installed on both sides inside the pump body 2. One end of the drive unit 3 penetrates inside the pump body 2 to drive the movement of the diaphragm agitation mechanism 10. The drive unit 3 is fixedly installed above the base 1. Vertical pipes 7 are connected to the sides of the two sets of diaphragm agitation mechanisms 10 that are far apart from each other. The discharge pipe 4 is located above the two vertical pipes 7, and the feed pipe 8 is located below the two vertical pipes 7. Both the discharge pipe 4 and the feed pipe 8 are tee pipes. The upper end of the vertical pipe 7 on the same side... The vertical pipe 7 is connected to the discharge pipe 4 at its lower end and to the feed pipe 8 at its lower end. Two sets of symmetrical and mutually abutting arc-shaped sealing shells 9 are provided at the connection between the vertical pipe 7 and the discharge pipe 4 and the feed pipe 8. Both arc-shaped sealing shells 9 are equipped with sealing adsorption components inside. Both arc-shaped sealing shells 9 are equipped with abutting buffer components on their upper and lower edges. Both arc-shaped sealing shells 9 are equipped with abutting blocks 23 on their outer walls away from the vertical pipe 7. Both abutting blocks 23 are equipped with locking components inside. One of the arc-shaped sealing shells 9 is equipped with a leakage sensor 18 above it. Both arc-shaped sealing shells 9 are equipped with interconnected inner cavities inside.

[0037] In this embodiment, the drive unit 3 serves as the power source, driving the two sets of diaphragm agitation mechanisms 10 inside the pump body 2 to perform periodic agitation, forming a stable conveying pressure, causing the organic fluorine intermediate to flow directionally along the feed pipe 8, vertical pipe 7, and discharge pipe 4, completing continuous conveying; two sets of symmetrically abutting arc-shaped sealing shells 9 completely enclose the pipe interfaces of the feed pipe 8 and vertical pipe 7, as well as the pipe structure of the discharge pipe 4 and vertical pipe 7, and work with the internal sealing adsorption component to improve sealing performance, the abutting buffer component to absorb the vibration of the pump body operation, and the locking component to ensure the stability of the sealing structure; the interconnected inner cavity collects a small amount of leaked medium, and the leakage sensor 18 monitors the leakage status in real time, thus achieving stable conveying, sealing and vibration reduction, locking and fixing, and leakage monitoring in one integrated system, solving the problems of easy leakage and large vibration impact of traditional interfaces;

[0038] It should be noted that the leakage sensor 18 is existing technology, which can detect the leakage status in real time and transmit the signal to the external control system to realize timely early warning of leakage. The whole structure forms a sealed, vibration-damping, and monitorable conveying structure, solving the problems of easy leakage at the interface and large impact of vibration.

[0039] The sealing adsorption component includes a sealing ring 15 fixedly installed inside the arc-shaped sealing shell 9. The sealing ring 15 is arc-shaped, and a porous fluororubber elastic strip 14 is installed inside the arc-shaped sealing shell 9.

[0040] In this embodiment, the arc-shaped sealing ring 15 fits tightly against the outer wall of the pipeline, forming the first physical sealing barrier to block the leakage channel of the medium; the porous fluororubber elastic strip 14 relies on its own adsorption and sealing properties to form the second layer of protection, which can adsorb the trace amount of leaked medium at the interface. The dual sealing structure works together to greatly improve the sealing reliability of the pipeline interface and avoid large-area leakage of organic fluorine intermediates.

[0041] Multiple shaping rods 16 are fixedly installed on the top and bottom walls of the inner side of the arc-shaped sealing shell 9. The ends of the multiple shaping rods 16 that are close to each other are connected to the outer surface of the porous fluororubber elastic strip 14.

[0042] In this embodiment, the shaping rod 16 provides uniform support and positioning for the porous fluororubber elastic strip 14, ensuring that the porous fluororubber elastic strip 14 always remains in close contact with the pipeline interface, preventing the porous fluororubber elastic strip 14 from shifting or wrinkling, ensuring stable sealing and adsorption effects, and continuously maintaining the integrity of the interface seal.

[0043] The porous structure of the porous fluororubber elastic strip 14 can adsorb trace amounts of leaked media through capillary action, enabling the leak sensor 18 to detect leaks more quickly. It also has its own buffering and shock absorption function.

[0044] The clamping buffer includes a sliding shell 6 fixedly installed above the arc-shaped sealing shell 9 and near the middle. A sliding groove 5 is provided on one side of the sliding shell 6. A slider 21 is slidably installed inside the sliding shell 6. Abutment posts 22 are symmetrically installed on the outer surface of the slider 21. Both abutment posts 22 are inclined downwards. A support rod 12 is fixedly installed at one end of the slider 21 and near the sliding groove 5.

[0045] In this embodiment, the inclined support column 22 provides stable support for the arc-shaped pressure strip 13, the sliding shell 6 and the sliding groove 5 provide an installation reference for the overall structure, and the support rod 12 realizes the transmission and dispersion of force. This structure does not produce displacement, but only uses the inclined support shape to buffer vibration with silicone deformation, avoiding the vertical guiding force defects of traditional flanges, and effectively weakening the transmission of vibration to the interface sealing surface.

[0046] The upper and lower edges of the arc-shaped sealing shell 9 are both machined into bevels 17. The ends of the two abutments 22 away from the slider 21 are connected to an arc-shaped abutment strip 13. The outer surface of one side of the arc-shaped abutment strip 13 abuts against the outside of the bevel 17.

[0047] In this embodiment, the arc-shaped pressure strip 13 presses against the inclined surface 17 at an angle, forming an oblique pressing constraint, which changes the traditional vertical force-bearing method of the flange and avoids the interface from loosening due to vibration. When vibration occurs, the porous fluororubber elastic strip 14 absorbs the impact of vibration by its own elasticity, and buffering can be completed without moving the parts, thereby improving the stability of the interface under vibration conditions.

[0048] On the same side, the four support rods 12 away from the sliding shell 6 are connected to a connecting rod 11. The connecting rod 11 is fixedly sleeved with a clamping plate 19 on the outside and near the abutment block 23, and the two clamping plates 19 that are close to each other are arranged in an alternating manner.

[0049] In this embodiment, the connecting rod 11 connects multiple sets of frame rods 12 on the same side into a whole, improving the overall structure and the uniformity of force distribution; the interlocking clamps 19 form an interlocking structure, providing a precise positioning and a solid connection foundation for subsequent locking, preventing the sealing structure from separating during vibration, and strengthening the overall structural strength.

[0050] The locking component includes a locking pin 20 threaded inside the lower part of the abutment block 23, with one end of the locking pin 20 penetrating inside the two sets of interlocking locking plates 19;

[0051] In this embodiment, the locking pin 20 passes horizontally through the interlaced locking plates 19, firmly locking and fixing the two sets of arc-shaped sealing shells 9, so that the sealing adsorption component and the pressing buffer component always maintain a stable working state, avoiding long-term vibration that causes the connection to loosen, and ensuring that the sealing and vibration reduction effects are continuously effective.

[0052] It should be noted that each card plate 19 has a pin hole inside, which facilitates the insertion of the pin 20.

[0053] A method for transporting an organofluorine intermediate during synthesis, using the aforementioned diaphragm pump transport device, includes the following steps:

[0054] S1: The driving component 3 drives the diaphragm agitation mechanism 10 on both sides inside the pump body 2 to periodically agitate, so that the organic fluorine intermediate medium enters the vertical pipe 7 from the feed pipe 8 and is discharged through the discharge pipe 4, thus completing the medium transportation.

[0055] S2: The pipeline interface is sealed by two sets of arc-shaped sealing shells 9 that symmetrically abut against the connection between the vertical pipe 7, the discharge pipe 4, and the feed pipe 8, and the sealing adsorption component inside the arc-shaped sealing shell 9 is used to improve the sealing effect of the interface.

[0056] S3: The vibration generated by the operation of the diaphragm agitation mechanism 10 is absorbed by the abutting buffers on the upper and lower edges of the arc-shaped sealing shell 9, reducing the impact of vibration on the sealing performance of the pipeline interface.

[0057] S4: The arc-shaped sealing shell 9 is locked and fixed by the locking element inside the abutment block 23 to maintain the stability of the sealing structure;

[0058] S5: The leakage sensor 18 above the arc-shaped sealing shell 9 monitors in real time whether a medium leak occurs at the pipeline interface, and collects the leaked medium through the interconnected inner cavities inside the arc-shaped sealing shell 9 to achieve timely detection of the leakage signal.

[0059] Working principle: After the device is started, the drive unit 3 on the base 1 drives the diaphragm agitation mechanism 10 on both sides inside the pump body 2 to perform periodic reciprocating agitation. The organic fluorine intermediate medium enters the vertical pipe 7 from the feed pipe 8 of the three-way structure, and then exits through the discharge pipe 4 of the three-way structure. The two sets of diaphragm agitation mechanisms 10 operate alternately to achieve uniform and stable delivery of the medium. The connection between the vertical pipe 7 and the discharge pipe 4 and the feed pipe 8 is fully covered by two sets of symmetrically abutting arc-shaped sealing shells 9. The arc-shaped sealing ring 15 inside the sealing shell forms the first sealing barrier. The porous fluororubber elastic strip 14 supported by the shaping rod 16 tightly fits the interface gap and absorbs the trace amount of leaked medium, forming a double sealing protection to prevent medium leakage from the source.

[0060] During transport, when the vibration generated by the diaphragm agitation mechanism 10 is transmitted to the pipeline interface, the inclined arc-shaped pressure strip 13 is stably pressed against the inclined surface 17 of the upper and lower edges of the arc-shaped sealing shell 9, thus forming an inclined pressing support. This avoids the vertical guiding force defects of the traditional flange structure. Neither the abutment column 22 nor the slider 21 is displaced. The vibration impact and stress are absorbed by the elastic deformation of the porous fluororubber elastic strip 14 itself. Combined with the inclined pressing structure, the interface shape is stably constrained, preventing the sealing surface from shifting or loosening due to vibration. The locking pin 20 at the abutment block 23 passes horizontally through the upper and lower interlaced locking plates 19, firmly locking the two sets of arc-shaped sealing shells 9. This ensures that the sealing adsorption component and the pressing buffer component always maintain a tight fit under continuous vibration conditions, improving the interface connection strength and sealing stability.

[0061] The arc-shaped sealing shell 9 has interconnected internal cavities that can collect trace amounts of leaked media at the pipeline interface in a timely manner. Together with the leak sensor 18 on the top of the sealing shell, it can realize real-time leak monitoring. The leak signal can be quickly detected and alerted. With the adsorption effect of the porous fluororubber elastic strip 14, it can effectively prevent the potential for leakage from expanding. The entire device solves the problems of leakage caused by vibration, poor sealing reliability, and difficulty in detecting leakage in the transportation of organic fluorine intermediates through the coordinated cooperation of multiple links such as conveying, sealing, vibration reduction, locking, and monitoring, thus ensuring continuous and safe transportation.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A diaphragm pump conveying device, comprising a base (1), a pump body (2), a drive component (3), a diaphragm agitation mechanism (10), a discharge pipe (4), and a feed pipe (8), characterized in that: The pump body (2) has a set of diaphragm agitation mechanisms (10) on both sides inside. One end of the drive member (3) passes through the pump body (2) to drive the diaphragm agitation mechanism (10) to move. The drive member (3) is fixedly installed above the base (1). The two sets of diaphragm agitation mechanisms (10) are connected to each other on opposite sides by vertical pipes (7). The discharge pipe (4) is located above the two vertical pipes (7), and the feed pipe (8) is located below the two vertical pipes (7). The discharge pipe (4) and the feed pipe (8) are connected to each other. All pipes (8) are tee pipes. The upper end of the vertical pipe (7) on the same side is connected to the discharge pipe (4), and the lower end is connected to the feed pipe (8). At the connection between the vertical pipe (7) and the discharge pipe (4) and the feed pipe (8), there are two sets of symmetrical and mutually abutting arc-shaped sealing shells (9). Both arc-shaped sealing shells (9) are equipped with sealing adsorption components inside. Both arc-shaped sealing shells (9) are equipped with abutting buffer components on the upper and lower edges. The two arc-shaped sealing shells (9) are far away from the vertical pipe (7). Each outer wall is provided with a stop block (23), and each of the two stop blocks (23) is provided with a locking element. A leakage sensor (18) is provided above one of the arc-shaped sealing shells (9). Each of the two arc-shaped sealing shells (9) is provided with an interconnected inner cavity. The stop buffer includes a sliding shell (6) fixedly installed above the arc-shaped sealing shell (9) and near the middle. A sliding groove (5) is opened on one side of the sliding shell (6). A slider (21) is slidably installed inside the sliding shell (6). The slider (21) is symmetrically equipped with abutment posts (22) on its outer surface. Both abutment posts (22) are inclined downwards. A bracket rod (12) is fixedly installed at one end of the slider (21) and close to the inside of the slide groove (5). The upper and lower edges of the arc-shaped sealing shell (9) are both processed into inclined surfaces (17). The ends of the two abutment posts (22) away from the slider (21) are connected to an arc-shaped pressure strip (13). The outer surface of one side of the arc-shaped pressure strip (13) abuts against the outside of the inclined surface (17).

2. The diaphragm pump conveying device according to claim 1, characterized in that: The sealing adsorption component includes a sealing ring (15) fixedly installed inside the arc-shaped sealing shell (9). The sealing ring (15) is arc-shaped, and a porous fluororubber elastic strip (14) is installed inside the arc-shaped sealing shell (9).

3. The diaphragm pump conveying device according to claim 2, characterized in that: Multiple shaping rods (16) are fixedly installed on the inner top and bottom walls of the arc-shaped sealing shell (9), and one end of the multiple shaping rods (16) that are close to each other is connected to the outer surface of the porous fluororubber elastic strip (14).

4. The diaphragm pump conveying device according to claim 1, characterized in that: The four support rods (12) on the same side are connected by a connecting rod (11) on the side away from the sliding shell (6). The connecting rod (11) is fixedly fitted with a clamping plate (19) on the outside and near the abutment block (23), and the two clamping plates (19) that are close to each other are arranged in an alternating manner.

5. The diaphragm pump conveying device according to claim 4, characterized in that: The locking element includes a locking pin (20) threaded inside the lower part of the abutment block (23), one end of which passes through the interior of two sets of interlocking locking plates (19).

6. A method for transporting an organofluorine intermediate during synthesis, comprising using a diaphragm pump transport device as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: The driving component (3) drives the diaphragm agitation mechanism (10) on both sides of the pump body (2) to periodically agitate, so that the organic fluorine intermediate medium enters the vertical pipe (7) from the feed pipe (8) and is discharged through the discharge pipe (4) to complete the medium transportation; S2: The pipeline interface is sealed by two sets of arc-shaped sealing shells (9) that symmetrically abut against the connection between the vertical pipe (7) and the discharge pipe (4) and the feed pipe (8), and the sealing effect of the interface is improved by the sealing adsorption component inside the arc-shaped sealing shell (9). S3: The vibration generated by the operation of the diaphragm agitation mechanism (10) is absorbed by the abutting buffers on the upper and lower edges of the arc-shaped sealing shell (9), reducing the impact of vibration on the sealing performance of the pipeline interface; S4: The arc-shaped sealing shell (9) is locked and fixed by the locking element inside the abutment block (23) to maintain the stability of the sealing structure; S5: The leakage sensor (18) above the arc-shaped sealing shell (9) monitors in real time whether a medium leak occurs at the pipeline interface, and collects the leaked medium through the interconnected inner cavity inside the arc-shaped sealing shell (9) to realize timely detection of the leakage signal.

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