Multi-station chemical reactor continuous sampling device

Abstract

This utility model discloses a continuous sampling device for a multi-station chemical reactor, relating to the field of continuous sampling technology. The utility model includes a tank body, a vacuum pump fixedly installed on the outside of the tank body, a connecting pipe fixedly installed inside the vacuum pump's suction port, a sample storage box fixedly installed on the top of the tank body, one end of the connecting pipe penetrating the sample storage box, a first valve fixedly installed on the outside of the sample storage box, one end of the first valve penetrating the sample storage box, a telescopic flexible hose fixedly installed on the other end of the first valve, and a connecting pipe fixedly installed on the other end of the telescopic flexible hose. Several installation pipes are fixedly installed on the outside of the tank body, and the installation pipes and connecting pipes are connected together by a connecting assembly. A sample collection assembly is provided inside the sample storage box. The connecting assembly connects the connecting pipes and installation pipes together, ensuring the sealing and stability of the connection, while simultaneously achieving pipeline connectivity during sampling and sealing after sampling, ensuring reliable sampling.

Description

Technical Field

[0001] This utility model relates to the field of continuous sampling technology, specifically to a continuous sampling device for multi-station chemical reactors. Background Technology

[0002] In chemical production processes, the reactor is the core equipment for material reaction. The composition, concentration, and other parameters of the materials inside the reactor directly affect product quality and production efficiency. In order to monitor the reaction process in real time, it is necessary to continuously sample and analyze the materials inside the reactor. Therefore, multi-station continuous sampling devices have become an indispensable key equipment in chemical production and are widely used in fine chemicals, pharmaceutical intermediates, food processing and other fields, providing important data support for production control.

[0003] However, in existing multi-station chemical reactor continuous sampling devices, the sealing and stability of the connection structure are often difficult to guarantee. During frequent sampling operations, leakage is prone to occur at the pipeline connection points, which not only leads to material waste but may also pollute the working environment and affect the accuracy of sampling. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a continuous sampling device for multi-station chemical reactors, which features good connection sealing, high stability, the ability to achieve pipeline connectivity during sampling and sealing after sampling, and ease of cleaning to prevent cross-contamination. This solves the problems of insufficient sealing and stability of existing device connection structures, easy leakage, and impact on sampling accuracy.

[0005] To achieve the above objectives, this utility model employs the following technical solution: a multi-station chemical reactor continuous sampling device, comprising a tank body, a vacuum pump fixedly installed on the outside of the tank body, a connecting pipe fixedly installed inside the suction port of the vacuum pump, a sample storage box fixedly installed on the top of the tank body, a sealing cover provided on the top of the sample storage box, one end of the connecting pipe penetrating the sample storage box, a first valve fixedly installed on the outside of the sample storage box, one end of the first valve penetrating the sample storage box, a telescopic hose fixedly installed on the other end of the first valve, a connecting pipe fixedly installed on the other end of the telescopic hose, an outlet pipe fixedly installed on the outside of the telescopic hose near the first valve, an inlet pipe fixedly installed on the outside of the telescopic hose near the connecting pipe, and second valves fixedly installed on the outside of both the outlet pipe and the inlet pipe. Several installation pipes are fixedly installed on the outside of the tank body, and the installation pipes are connected to the connecting pipes via a connecting assembly. A sample collection assembly is provided inside the sample storage box.

[0006] As a preferred embodiment of this utility model, the connecting assembly includes a threaded sleeve, which is fixedly installed on the outside of the connecting tube. A sealing ring is fixedly installed at one end of the connecting tube near the mounting tube. A first mounting groove is formed inside the connecting tube, and a bracket is fixedly installed inside the first mounting groove. A first spring is fixedly installed on one side of the bracket, and a sealing ball is fixedly installed at the other end of the first spring.

[0007] As a preferred technical solution of this utility model, the connecting assembly further includes a threaded sleeve, which is threadedly connected to the outside of the mounting tube and threadedly connected to the threaded sleeve. A second mounting groove is provided inside the mounting tube, and a material taking tube is movably installed inside the mounting tube. Several material taking holes are provided on the outside of the material taking tube.

[0008] As a preferred embodiment of this utility model, the connecting assembly further includes a sealing plate, which is fixedly installed at one end of the feeding tube near the feed hole. A sealing ring is fixedly installed on the side of the sealing plate near the feed hole, and a circular ring is fixedly installed at the other end of the feeding tube. The diameter of the circular ring is adapted to the diameter of the second mounting groove.

[0009] As a preferred embodiment of the present invention, the connecting assembly further includes a second spring, which is fixedly installed on one side of the ring, and the other end of the second spring is fixedly installed on one side of the inner side of the second mounting groove. A T-shaped push rod is fixedly installed inside the ring, and the T-shaped push rod is used in conjunction with a sealing ball.

[0010] As a preferred technical solution of this utility model, the sample collection assembly includes a collection box, which is movably fitted inside the sample storage box. Two sliding grooves are opened on the outer side of the collection box. The two sliding grooves are respectively used in conjunction with the connecting pipe and the first valve. A circular hole is opened inside the sliding groove, and a sealing ring is fixedly installed inside the sliding groove.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model achieves convenient switching and reliable sealing of multi-station sampling through connecting components. The cooperation between the threaded sleeve and the threaded bushing allows for quick connection of the connecting pipe and the installation pipe. The sealing ring enhances the sealing performance. The linkage between the T-shaped push rod and the sealing ball, the second spring and the sealing plate ensures smooth passage during sampling. After sampling, the system automatically seals to prevent leakage of tank materials and external contamination. In the sample collection component, the collection box cooperates with the connecting pipe and the first valve through a sliding groove to achieve effective sample collection. The sealing ring ensures the tightness of the connection and avoids sample leakage.

[0013] Meanwhile, a high-pressure water pump connected to the inlet pipe can flush out residual samples from the telescopic hose through the outlet pipe. After flushing, a blower connected to the inlet pipe can blow out residual water from the outlet pipe, thoroughly removing pipeline residues, preventing cross-contamination of samples from different workstations, and ensuring sampling accuracy. The overall design improves the practicality and reliability of the device, meeting the needs of continuous sampling at multiple workstations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the multi-station chemical reactor continuous sampling device of this utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the tank body of this utility model;

[0016] Figure 3 This is an enlarged structural schematic diagram of utility model A;

[0017] Figure 4 This is a schematic diagram of the telescopic hose structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the butt joint structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the butt joint pipe of this utility model;

[0020] Figure 7 This is a schematic diagram of the installation pipe structure of this utility model;

[0021] Figure 8 This is a schematic diagram of the cross-sectional structure of the material receiving tube of this utility model;

[0022] Figure 9 This is a schematic diagram of the sample collection component structure of this utility model.

[0023] Reference numerals: 1. Tank body; 2. Vacuum pump; 3. Connecting pipe; 4. Sample storage box; 5. First valve; 6. Telescopic hose; 7. Mounting pipe; 701. Second mounting groove; 8. Connecting pipe; 9. Threaded sleeve; 10. Bracket; 11. First spring; 12. First mounting groove; 13. Sealing ball; 14. Threaded sleeve; 15. Feeding pipe; 16. Sealing plate; 17. Feed hole; 18. Ring; 19. Second spring; 20. T-shaped push rod; 21. Collection box; 22. Slide groove; 23. Round hole; 24. Sealing ring. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0025] Figure 1 - Figure 9 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 9 The present invention will be further described below.

[0026] A multi-station chemical reactor continuous sampling device includes a tank body 1. A vacuum pump 2 is fixedly installed on the outside of the tank body 1. A connecting pipe 3 is fixedly installed inside the suction port of the vacuum pump 2. A sample storage box 4 is fixedly installed on the top of the tank body 1. A sealing cover is provided on the top of the sample storage box 4. One end of the connecting pipe 3 passes through the sample storage box 4. A first valve 5 is fixedly installed on the outside of the sample storage box 4. One end of the first valve 5 passes through the sample storage box 4. A telescopic hose 6 is fixedly installed on the other end of the first valve 5. A connecting pipe 8 is fixedly installed on the other end of the telescopic hose 6. An outlet pipe is fixedly installed on the outside of the telescopic hose 6 near the first valve 5. An inlet pipe is fixedly installed on the outside of the end of the telescopic hose 6 near the connecting pipe 8. A second valve is fixedly installed on the outside of both the outlet pipe and the inlet pipe. Several installation pipes 7 are fixedly installed on the outside of the tank body 1. The installation pipes 7 and the connecting pipe 8 are connected together by a connecting assembly. A sample collection assembly is provided inside the sample storage box 4.

[0027] In this embodiment, the tank 1 serves as the main structure of the reactor, providing a closed space for material reaction and forming the foundation for the entire sampling device. It supports the vacuum pump 2, mounting pipe 7, and other components. The vacuum pump 2, through the connecting pipe 3, creates negative pressure in the collection box 21 within the sample storage box 4, providing power for the material to enter the collection box 21 from the tank 1 via the sampling pipeline, thus driving the sampling process smoothly. The connecting pipe 3 connects the vacuum pump 2 and the sample storage box 4, transmitting the negative pressure generated by the vacuum pump 2. The sample storage box 4 houses the sample collection components, providing a closed environment for temporary sample storage. Its top sealing cap can be opened for easy access to the collection components while preventing sample contamination. The first valve 5 controls the passage between the telescopic hose 6 and the sample storage box 4. It is opened during sampling to allow material to enter the sample storage box 4 and closed after sampling. It is also closed when cleaning the telescopic hose 6. The telescopic hose 6 connects the first valve 5 and the connecting pipe 8, allowing for flexible extension and retraction to adapt to the connection requirements of the connecting pipe 8 and different mounting pipes 7. The tube is installed on the outside of the telescopic hose 6 near the first valve 5. During cleaning, it serves as a discharge channel for residual samples and water after high-pressure water pump rinsing. It works in conjunction with the inlet pipe to complete pipeline cleaning. The inlet pipe is installed on the outside of the telescopic hose 6 near the connecting pipe 8. When an external high-pressure water pump is connected, cleaning water can be introduced into the telescopic hose 6 to rinse residual samples and ensure pipeline cleanliness. The second valve is installed on the outside of the outlet pipe and the inlet pipe respectively to control the opening and closing of the inlet and outlet pipes. The corresponding valve is opened during cleaning and closed when not cleaning to prevent material leakage. The installation pipe 7 provides an installation position for the connecting assembly and is a transition structure for connecting the connecting pipe 8 and the tank 1, realizing the connection between the sampling pipeline and the tank 1. The connecting assembly connects the connecting pipe 8 and the installation pipe 7 together, ensuring the sealing and stability of the connection between the two, and realizing the pipeline connectivity during sampling and sealing after sampling, ensuring reliable sampling. The sample collection assembly is set inside the sample storage box 4 to directly collect the samples transported from the pipeline, facilitating subsequent sample testing and analysis and improving sampling efficiency.

[0028] Specifically, the connecting assembly includes a threaded sleeve 9, which is fixedly installed on the outside of the connecting tube 8. The threaded sleeve 14 is threadedly connected to the threaded sleeve 9. A sealing ring is fixedly installed at one end of the connecting tube 8 near the mounting tube 7. A first mounting groove 12 is formed inside the connecting tube 8. A bracket 10 is fixedly installed inside the first mounting groove 12. A first spring 11 is fixedly installed on one side of the bracket 10. A sealing ball 13 is fixedly installed at the other end of the first spring 11.

[0029] In this embodiment, a threaded sleeve 9 is fixed to the outside of the connecting pipe 8 and threadedly connected to the threaded sleeve 14 to achieve a tight connection between the connecting pipe 8 and the installation pipe 7, ensuring the stability of the connection. The connecting pipe 8, as an intermediate component connecting the telescopic hose 6 and the installation pipe 7, has a sealing ring near the end of the installation pipe 7 that enhances the sealing performance when docking with the installation pipe 7. The first mounting groove 12 is opened inside the connecting pipe 8 to provide installation and movement space for the bracket 10, the first spring 11, and the sealing ball 13. The bracket 10 is fixed inside the first mounting groove 12 to provide stable support for the first spring 11, ensuring that the first spring 11 can extend and retract normally, thereby driving the sealing ball 13 to perform the sealing function. Under normal conditions, the first spring 11 pushes the sealing ball 13 to seal the internal channel of the connecting pipe 8 to prevent material leakage. When subjected to external force, it is compressed, causing the sealing ball 13 to move and open the channel.

[0030] Specifically, the connecting assembly also includes a threaded sleeve 14, which is threadedly connected to the outside of the mounting tube 7. The mounting tube 7 has a second mounting groove 701 inside, and a material taking tube 15 is movably installed inside the mounting tube 7. The material taking tube 15 has several feed holes 17 on its outside.

[0031] In this embodiment, the threaded sleeve 14 can cooperate with the threaded sleeve 9 to achieve a fixed connection between the connecting pipe 8 and the installation pipe 7, enhancing the stability and sealing of the connection. The second installation groove 701 is opened inside the installation pipe 7 to provide an installation position for the second spring 19, ensuring that the sampling pipe 15 can move smoothly during sampling to expose the feed hole 17 and can be reset after sampling. The sampling pipe 15 is movably installed inside the installation pipe 7 and is the direct channel for material to enter the sampling pipeline from the tank 1. Its position is movable to ensure that the feed hole 17 can communicate with the inside of the tank 1 when needed to complete the sampling. The feed hole 17 is opened on the outside of the sampling pipe 15. When the sampling pipe 15 moves to a suitable position, the material in the tank 1 can enter the sampling pipe 15 through the feed hole 17, providing an entrance for the material to enter the sampling pipeline.

[0032] Specifically, the connecting assembly also includes a sealing plate 16, which is fixedly installed at one end of the feed tube 15 near the feed hole 17. A sealing ring is fixedly installed on the side of the sealing plate 16 near the feed hole 17, and a ring 18 is fixedly installed at the other end of the feed tube 15. The diameter of the ring 18 is adapted to the diameter of the second mounting groove 701.

[0033] In this embodiment, a sealing plate 16 is fixed to one end of the feeding tube 15 near the feed hole 17. The sealing ring on the side near the feed hole 17 can fit against the inner wall of the mounting tube 7 when the feeding tube 15 is reset, sealing the feed hole 17 and preventing material leakage in the tank 1, thus ensuring the sealing performance in the non-sampling state. The feeding tube 15 serves as a material conveying channel. One end of it is equipped with a sealing plate 16 to achieve the sealing function, and the other end is fixed with a ring 18. The movement of the ring 18 drives its own movement, so that the feed hole 17 is exposed during sampling and hidden when not sampling, controlling the entry of material. The ring 18 is fixed to the other end of the feeding tube 15. Its diameter is adapted to the second mounting groove 701, and it can move stably in the second mounting groove 701, driving the feeding tube 15 to move synchronously. At the same time, it restricts the movement direction of the feeding tube 15, ensuring that it moves along the axis of the mounting tube 7.

[0034] Specifically, the connecting assembly also includes a second spring 19, which is fixedly installed on one side of the ring 18. The other end of the second spring 19 is fixedly installed inside the second mounting groove 701. A T-shaped push rod 20 is fixedly installed inside the ring 18, and the T-shaped push rod 20 is used in conjunction with the sealing ball 13.

[0035] In this embodiment, a second spring 19 is provided, with one end fixed to one side of the ring 18 and the other end connected to one side of the inside of the second mounting groove 701. When the connecting pipe 8 is disengaged from the ring 18, the spring force can push the ring 18 back to its original position, thereby driving the material taking pipe 15 and the T-shaped push rod 20 to return to their original positions, ensuring a seal in the non-sampling state. The T-shaped push rod 20 is fixed inside the ring 18 and works in conjunction with the sealing ball 13. When the ring 18 is pushed by the connecting pipe 8, the T-shaped push rod 20 moves with it and pushes the sealing ball 13, causing the first spring 11 to compress and opening the passage between the connecting pipe 8 and the material taking pipe 15, thus realizing material flow.

[0036] Specifically, the sample collection assembly includes a collection box 21, which is movably fitted inside the sample storage box 4. Two sliding grooves 22 are opened on the outside of the collection box 21. The two sliding grooves 22 are used in conjunction with the connecting pipe 3 and the first valve 5, respectively. A round hole 23 is opened inside the sliding groove 22, and a sealing ring 24 is fixedly installed inside the sliding groove 22.

[0037] In this embodiment, the collection box 21 is movably fitted inside the sample storage box 4 to directly receive the sample obtained from sampling. The flexible design facilitates subsequent detection and analysis. The slide 22 is located on the outside of the collection box 21. When it cooperates with the connecting pipe 3 and the first valve 5, it serves as a channel for both to enter the collection box 21 without obstructing the retrieval and placement of the collection box 21 within the sample storage box 4, ensuring that sampling and retrieval operations do not interfere with each other. One end of the connecting pipe 3 is connected to the vacuum pump 2, and the other end cooperates with the slide 22 of the collection box 21 to create a negative pressure inside the collection box 21, driving the sample into the collection box 21. The first valve 5 cooperates with the slide 22 of the collection box 21 to control the passage of the sample into the collection box 21. Under the action of negative pressure, when opened, it allows the sample to flow smoothly into the collection box 21. The sealing ring 24 is fixed inside the slide 22 to enhance the sealing at the connection between the connecting pipe 3, the first valve 5, and the slide 22, preventing sample leakage during transportation.

[0038] In summary: When using this utility model, firstly, manually align the connecting pipe 8 with the installation pipe 7 to be sampled. During the docking process, one end of the connecting pipe 8 first contacts the ring 18 and pushes it into the second installation groove 701. The second spring 19 is compressed, and at the same time, the sampling pipe 15 moves with the ring 18, causing the feed hole 17 to move from the inside of the installation pipe 7 to the inside of the tank 1. The sealing plate 16 detaches from the inner wall of the installation pipe 7, and the sealing ring on one side no longer seals. At this time, the T-shaped push rod 20 moves with the ring 18 and contacts the sealing ball 13. The sealing ball 13 is pushed to move, compressing the first spring 11. The connecting pipe 8 is connected to the material receiving pipe 15. When one end of the connecting pipe 8 is fully inserted into the second mounting groove 701, the threaded sleeve 14 is manually rotated to connect with the threaded sleeve 9, thus fixing the connecting pipe 8 to the mounting pipe 7. The sealing ring at one end of the connecting pipe 8 enhances the sealing of the connection. Then, the first valve 5 and the vacuum pump 2 are opened. The vacuum pump 2 creates a negative pressure in the collection box 21 inside the sample storage box 4 through the connecting pipe 3. The material in the tank 1 is subjected to the negative pressure. The material enters the collection box 21 sequentially through the feed hole 17, the take-up pipe 15, the connecting pipe 8, the telescopic hose 6, the first valve 5, and the round hole 23. After sampling, the first valve 5 and the vacuum pump 2 are closed, and the threaded sleeve 14 is manually rotated in the reverse direction to separate it from the threaded sleeve 9. The connecting pipe 8 is then removed. At this time, the second spring 19 resets and pushes the ring 18 and the take-up pipe 15 back to their initial positions. The feed hole 17 retracts into the installation pipe 7, and the sealing ring on one side of the sealing plate 16 fits against the inner wall of the installation pipe 7 to seal the feed hole 17. At the same time, the T-shaped push... Rod 20 disengages from sealing ball 13, first spring 11 resets and pushes sealing ball 13 to seal connecting pipe 8, then open the sealing cover on top of sample storage box 4, and take out collection box 21 to obtain sample; if it is necessary to clean telescopic hose 6, first open the second valve of inlet pipe and outlet pipe, connect high pressure water pump to inlet pipe to flush out residual sample from outlet pipe, after flushing, connect blower to inlet pipe to blow out residual water from inside telescopic hose 6 from outlet pipe, and finally close the second valve on outlet pipe and inlet pipe to complete cleaning.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A continuous sampling device for multi-station chemical reactors, characterized in that, The system includes a tank (1), a vacuum pump (2) fixedly installed on the outside of the tank (1), a connecting pipe (3) fixedly installed inside the suction port of the vacuum pump (2), a sample storage box (4) fixedly installed on the top of the tank (1), a sealing cover provided on the top of the sample storage box (4), one end of the connecting pipe (3) penetrating the sample storage box (4), a first valve (5) fixedly installed on the outside of the sample storage box (4), one end of the first valve (5) penetrating the sample storage box (4), and an extension valve fixedly installed on the other end of the first valve (5). The flexible hose (6) is fixedly installed with a connecting pipe (8) at the other end. A water outlet pipe is fixedly installed on the outside of the flexible hose (6) near the first valve (5). A water inlet pipe is fixedly installed on the outside of the end of the flexible hose (6) near the connecting pipe (8). A second valve is fixedly installed on the outside of both the water outlet pipe and the water inlet pipe. Several installation pipes (7) are fixedly installed on the outside of the tank body (1). The installation pipes (7) and the connecting pipe (8) are connected together by a connecting component. A sample collection component is provided inside the sample storage box (4).

2. The continuous sampling device for multi-station chemical reactors according to claim 1, characterized in that, The connecting assembly includes a threaded sleeve (9), which is fixedly installed on the outside of the connecting tube (8). A sealing ring is fixedly installed at one end of the connecting tube (8) near the mounting tube (7). A first mounting groove (12) is formed inside the connecting tube (8). A bracket (10) is fixedly installed inside the first mounting groove (12). A first spring (11) is fixedly installed on one side of the bracket (10). A sealing ball (13) is fixedly installed at the other end of the first spring (11).

3. The continuous sampling device for multi-station chemical reactors according to claim 2, characterized in that, The connecting assembly also includes a threaded sleeve (14), which is threadedly connected to the outside of the mounting tube (7). The threaded sleeve (14) is threadedly connected to the threaded sleeve (9). The mounting tube (7) has a second mounting groove (701) inside. The mounting tube (7) has a material taking tube (15) movably installed inside. The material taking tube (15) has several feed holes (17) on its outside.

4. The continuous sampling device for multi-station chemical reactors according to claim 3, characterized in that, The connecting assembly also includes a sealing plate (16), which is fixedly installed on one end of the feed tube (15) near the feed hole (17). A sealing ring is fixedly installed on the side of the sealing plate (16) near the feed hole (17), and a ring (18) is fixedly installed on the other end of the feed tube (15). The diameter of the ring (18) is adapted to the diameter of the second mounting groove (701).

5. The continuous sampling device for multi-station chemical reactors according to claim 4, characterized in that, The connecting assembly also includes a second spring (19), which is fixedly installed on one side of the ring (18). The other end of the second spring (19) is fixedly installed on one side of the inner side of the second mounting groove (701). A T-shaped push rod (20) is fixedly installed inside the ring (18), and the T-shaped push rod (20) is used in conjunction with the sealing ball (13).

6. The continuous sampling device for multi-station chemical reactors according to claim 1, characterized in that, The sample collection assembly includes a collection box (21), which is movably fitted inside the sample storage box (4). Two grooves (22) are opened on the outside of the collection box (21). The two grooves (22) are used in conjunction with the connecting pipe (3) and the first valve (5) respectively. A round hole (23) is opened inside the groove (22), and a sealing ring (24) is fixedly installed inside the groove (22).

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