Closed sampling and decompression cooling integrated device for chemical process

Abstract

The utility model provides a closed sampling and decompression cooling integrated device for a chemical process, which relates to the technical field of chemical sampling and comprises a centralized cooling system and a bottom plate. A cooling inlet and a cooling outlet of the centralized cooling system are connected with the jacket cooling systems through pipelines, a cooling inlet valve and a cooling outlet valve are installed on the pipelines respectively, and a first connecting pipeline is installed at an outlet of each jacket cooling system. A sampling steel cylinder is mounted at one end of the first connecting pipeline and is connected with the inlet. The output end is controlled to retract through the pushing air cylinder, so that the mounting frames on the two sides move towards the inner side, a sampling steel cylinder can be fixed between the arc-shaped clamping plates on the two sides, the sampling steel cylinders of different specifications can be clamped and fixed, taking and placing operation is more convenient, manual operation is reduced, the use process is more convenient, and the working efficiency is improved. And moving wheels are mounted at the bottoms of the supporting legs, so that the integral structure for fixing the sampling steel cylinder can move, and the sampling steel cylinder can be conveniently transferred.

Description

An integrated closed sampling and pressure-reducing cooling device for chemical processes Technical Field

[0001] This utility model relates to the field of chemical sampling technology, and more specifically, to an integrated device for closed sampling and depressurization cooling in chemical processes. Background Technology

[0002] In chemical production processes, real-time sampling and analysis of process materials is a crucial step in quality control, process optimization, and safety monitoring. Chemical materials often possess characteristics such as high temperature, high pressure, flammability, explosiveness, toxicity, or strong corrosiveness. To prevent the leakage of hazardous substances and the potential for combustion and explosion risks from direct exposure of high-temperature materials, the materials need to be cooled and depressurized before sampling, and closed sampling cylinders are required. However, after sampling, the sampling cylinders require manual disassembly and transfer for testing. Due to their large size, this is inconvenient. Therefore, we propose an improved, integrated closed sampling and depressurization / cooling device for chemical processes. Summary of the Invention

[0003] The main purpose of this utility model is to provide a closed sampling and depressurization cooling integrated device for chemical processes, which can effectively solve the problem that sampling cylinders need to be manually disassembled and transferred for testing after sampling, and that the sampling cylinders are large and inconvenient to operate.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An integrated closed-loop sampling and pressure-reducing cooling device for chemical processes includes a centralized cooling system and a base plate. The centralized cooling system has a jacketed cooling system installed at both its cooling inlet and outlet via pipes, with a cooling inlet valve and a cooling outlet valve installed on each pipe. The jacketed cooling system has a sampling pressure-reducing device installed at its inlet via a pipe, with an inlet valve installed on the pipe. A first connecting pipe is installed at the outlet of the jacketed cooling system, with a sampling cylinder connected to one end of the first connecting pipe. A cooling temperature display, a first three-way valve, a first pressure display, and a sampling inlet valve are sequentially installed on the first connecting pipe. A second connecting pipe is installed at the outlet of the sampling cylinder. The pipeline includes a sampling outlet valve, a second pressure indicator, a second three-way valve, and a medium outlet valve installed sequentially on the second connecting pipeline. A third connecting pipeline is installed between the first three-way valve and the second three-way valve, and a medium circulation valve is installed on the third connecting pipeline. A fourth connecting pipeline is installed at both the inlet and outlet of the sampling cylinder. A pressure relief and recovery device is installed at one end of the fourth connecting pipeline and connected to the inlet. A pressure relief valve and a pressure relief and recovery device inlet valve are installed sequentially on the fourth connecting pipeline. A pressure relief and recovery device drain valve is installed at one end of the pressure relief and recovery device, and a pressure relief and recovery device vent valve and a pressure relief and recovery device pressurization valve are installed at the other end of the pressure relief and recovery device. The sampling cylinder is installed above the base plate.

[0006] Preferably, a placement groove is provided on one side of the upper surface of the base plate, and support legs are installed at the four corners of the lower surface of the base plate, with a caster wheel installed at the bottom of each support leg.

[0007] Preferably, a side plate is installed on one side of the upper surface of the base plate, a first mounting groove is formed on one side surface of the side plate, and a drive motor is installed on the top of the side plate.

[0008] Preferably, the output end of the drive motor is equipped with an adjusting screw, one end of which is rotatably mounted on the bottom inner wall of the first mounting groove, and a screw sleeve is installed on the body of the adjusting screw through a threaded connection.

[0009] Preferably, a movable plate is installed at one end of the lead screw sleeve, and a second mounting groove is provided on both sides of the middle part of the movable plate, and a push cylinder is installed inside each of the second mounting grooves.

[0010] Preferably, each of the pushing cylinders is equipped with a mounting bracket at its output end and on the outside of the moving plate, and each mounting bracket is equipped with a connecting bracket at the middle of one end and at both the top and bottom ends.

[0011] Preferably, each of the connecting frames is equipped with an arc-shaped clamp at one end, and each of the mounting frames is equipped with limit rods on both the upper and lower sides.

[0012] Preferably, sliding grooves are installed inside both the upper and lower sides of the movable plate, and one end of each limiting rod is slidably disposed inside the sliding groove at the corresponding position.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By pushing the cylinder to retract the output end, both mounting brackets on both sides move inward, fixing the sampling cylinder between the two arc-shaped clamps. This allows for clamping and fixing of sampling cylinders of different sizes, making loading and unloading operations more convenient, reducing manual operation, and making the use more convenient. The support legs are equipped with casters at the bottom, allowing the overall structure that fixes the sampling cylinder to be moved, facilitating the transfer of the sampling cylinder. Driven by the drive motor, the moving plate can be moved up and down, thereby adjusting the height of the sampling cylinder. This can be adjusted according to different installation positions, making it more applicable. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the specific installation structure of the sampling cylinder of this utility model;

[0017] Figure 3 is a top view of the structure shown in Figure 2 of this utility model;

[0018] Figure 4 is a cross-sectional three-dimensional structural diagram of section AA in Figure 3 of this utility model;

[0019] Figure 5 is a three-dimensional cross-sectional view of the structure at point BB in Figure 3 of this utility model.

[0020] In the diagram: 1. Centralized cooling system; 2. Sample injection pressure reduction device; 3. Jacketed cooling system; 4. Sampling cylinder; 401. Base plate; 402. Placement slot; 403. Support leg; 404. Casters; 405. Side plate; 406. First mounting slot; 407. Drive motor; 408. Adjusting screw; 409. Screw sleeve; 410. Moving plate; 411. Second mounting slot; 412. Push cylinder; 413. Mounting bracket; 414. Connecting bracket; 415. Arc-shaped clamp; 416. Limiting rod; 417. Sliding groove; 5. Pressure relief and recovery device; 6. Cooling inlet valve; 7. Cooling outlet valve. 8. Jacketed cooling system inlet valve; 9. First connecting pipe; 10. Cooling temperature display; 11. First three-way valve; 12. First pressure display; 13. Sampling inlet valve; 14. Second connecting pipe; 15. Sampling outlet valve; 16. Second pressure display; 17. Second three-way valve; 18. Medium outlet valve; 19. Third connecting pipe; 20. Medium circulation valve; 21. Fourth connecting pipe; 22. Pressure relief valve; 23. Pressure relief and recovery device inlet valve; 24. Pressure relief and recovery device drain valve; 25. Pressure relief and recovery device exhaust valve; 26. Pressure relief and recovery device pressurization valve. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] As shown in Figure 1, a closed-loop sampling and pressure-reducing cooling integrated device for chemical processes includes a centralized cooling system 1 and a base plate 401. The cooling inlet and outlet of the centralized cooling system 1 are both connected to a jacketed cooling system 3 via pipes, with a cooling inlet valve 6 and a cooling outlet valve 7 installed on the pipes respectively. A sampling pressure-reducing device 2 is connected to the inlet of the jacketed cooling system 3 via a pipe, with a jacketed cooling system inlet valve 8 installed on the pipe. A first connecting pipe 9 is installed at the outlet of the jacketed cooling system 3, with a sampling cylinder 4 connected to one end of the first connecting pipe 9. A cooling temperature display 10, a first three-way valve 11, a first pressure display 12, and a sampling inlet valve 13 are sequentially installed on the first connecting pipe 9. A second connecting pipe 14 is installed at the outlet of the sampling cylinder 4. The second connecting pipe 14 is sequentially equipped with a sampling outlet valve 15, a second pressure display 16, a second three-way valve 17, and a medium outlet valve 18. A third connecting pipe 19 is installed between the first three-way valve 11 and the second three-way valve 17. A medium circulation valve 20 is installed on the third connecting pipe 19. A fourth connecting pipe 21 is installed at both the inlet and outlet of the sampling cylinder 4. A pressure relief and recovery device 5 is installed at one end of the fourth connecting pipe 21 and connected to the inlet. A pressure relief valve 22 and a pressure relief and recovery device inlet valve 23 are sequentially installed on the fourth connecting pipe 21. A pressure relief and recovery device drain valve 24 is installed at one end of the pressure relief and recovery device 5. A pressure relief and recovery device exhaust valve 25 and a pressure relief and recovery device pressurization valve 26 are installed at the other end of the pressure relief and recovery device. The sampling cylinder 4 is installed above the base plate 401.

[0023] As shown in Figures 2 to 5, a placement groove 402 is provided on one side of the upper surface of the base plate 401. Support legs 403 are installed at the four corners of the lower surface of the base plate 401, and a caster wheel 404 is installed at the bottom of each support leg 403. A side plate 405 is installed on one side of the upper surface of the base plate 401, and a first mounting groove 406 is provided on one side surface of the side plate 405. A drive motor 407 is installed on the top of the side plate 405, and an adjusting screw 408 is installed at the output end of the drive motor 407. One end of the adjusting screw 408 is rotatably mounted on the bottom inner wall of the first mounting groove 406. A screw sleeve 409 is threadedly installed on the body of the adjusting screw 408, and one end of the screw sleeve 409 is... The moving plate 410 is equipped with a second mounting slot 411 on both sides of the middle part of the moving plate 410. A push cylinder 412 is installed inside each second mounting slot 411. A mounting bracket 413 is installed at the output end of each push cylinder 412 and on the outside of the moving plate 410. A connecting bracket 414 is installed at the middle of one end and at both the top and bottom ends of each mounting bracket 413. An arc-shaped clamp 415 is installed at one end of each connecting bracket 414. Limit rods 416 are installed on the top and bottom sides of each mounting bracket 413. Sliding grooves 417 are installed inside the top and bottom sides of the moving plate 410. One end of each limit rod 416 is slidably set inside the sliding groove 417 at the corresponding position.

[0024] The working principle of this integrated closed sampling and pressure reduction cooling device for chemical processes:

[0025] After being cooled by ethylene glycol as the cooling medium inside the centralized cooling system 1, the material enters the shell side of the jacketed cooling system 3. The material from the system is depressurized by the sample injection depressurization device 2 and then enters the tube side of the jacketed cooling system 3. After circulating through the pipeline, it enters the S sampling cylinder 4 for sampling. After sampling, the pressure is released through the pressure relief valve 22 to the pressure relief and recovery device 5. After being pressurized, the pressure relief and recovery device 5 drains liquid at the bottom and exhausts air at the top, which can realize depressurization and cooling of the material and sealed sampling, which can effectively improve the purity of the sample, reduce contamination, and make the sample detection more convenient.

[0026] During sampling, the centralized cooling system 1 is activated, and the cooling inlet valve 6 and cooling outlet valve 7 are opened. After confirming that the cooling system circulation is normal, the process medium enters the sample pressure reducing device 2 through the medium inlet pipe to reduce pressure. The jacket cooling system inlet valve 8 is opened to allow the medium to enter the jacket cooling system 3 for cooling. After cooling, when the temperature reaches 30℃, the first three-way valve 11, medium circulation valve 20, second three-way valve 17, and medium outlet valve 18 are opened. After running for a period of time, the sampling cylinder 4 is installed using a quick connector. Then, the sampling inlet valve 13 and sampling outlet valve 15 are opened, and the first three-way valve 11 and second three-way valve 17 are switched to perform cyclic sampling. After running for a period of time, the sampling inlet valve 13 and sampling outlet valve 15 are closed, the first three-way valve 11 and second three-way valve 17 are switched, and the pressure relief and recovery device inlet valve 23 and two pressure relief valves 22 are opened. After observing that the pressure gauge of the pressure relief and recovery device 5 returns to zero, the sampling cylinder 4 is removed and sent for testing. Then close the inlet valve 23 of the pressure relief and recovery device, open the pressurization valve 26 of the pressure relief and recovery device for pressurization, open the drain valve 24 of the pressure relief and recovery device for draining, and open the exhaust valve 25 of the pressure relief and recovery device to recover oil and gas.

[0027] When handling the sampling cylinder 4, the output end of the push cylinder 412 is extended to its maximum position, providing sufficient space between the two arc-shaped clamps 415 for easy placement of the sampling cylinder 4. The sampling cylinder 4 is placed inside the placement slot 402 and positioned between the two arc-shaped clamps 415. The output end of the push cylinder 412 is then retracted, causing the mounting brackets 413 on both sides to move inwards. This secures the sampling cylinder 4 between the two arc-shaped clamps 415, allowing for the clamping and fixing of sampling cylinders 4 of different sizes, making handling more convenient. The reduced manual operation makes it more convenient to use. The bottom of the support leg 403 is equipped with a movable wheel 404, which allows the overall structure that fixes the sampling cylinder 4 to be moved, making it easy to transfer the sampling cylinder 4. After the sampling cylinder 4 is clamped and fixed, the drive motor 407 drives the movable plate 410 to move up and down under the action of the threaded engagement between the adjusting screw 408 and the screw sleeve 409, thereby adjusting the height position of the sampling cylinder 4. It can be adjusted according to different installation positions, making it more applicable.

[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A closed sampling and pressure-reducing cooling integrated device for chemical processes, comprising a centralized cooling system (1) and a base plate (401), characterized in that: The centralized cooling system (1) has a jacketed cooling system (3) installed at both its cooling inlet and cooling outlet via pipes, with a cooling inlet valve (6) and a cooling outlet valve (7) installed on the pipes respectively. The jacketed cooling system (3) has a sampling pressure reducing device (2) installed at its inlet via a pipe, with a jacketed cooling system inlet valve (8) installed on the pipe. The jacketed cooling system (3) has a first connecting pipe (9) installed at its outlet, with a sampling cylinder (4) installed at one end and connected to the inlet. The first connecting pipe (9) is sequentially equipped with a cooling temperature display (10), a first three-way valve (11), a first pressure display (12), and a sampling inlet valve (13). The sampling cylinder (4) has a second connecting pipe (14) installed at its outlet, with a sampling outlet valve (15) and a second pressure reducing device (8) sequentially installed on the second connecting pipe (14). The sample cylinder (4) includes a display (16), a second three-way valve (17), and a medium outlet valve (18). A third connecting pipe (19) is installed between the first three-way valve (11) and the second three-way valve (17). A medium circulation valve (20) is installed on the third connecting pipe (19). A fourth connecting pipe (21) is installed at both the inlet and outlet of the sample cylinder (4). A pressure relief and recovery device (5) is installed at one end of the fourth connecting pipe (21) and connected to the inlet. A pressure relief valve (22) and a pressure relief and recovery device inlet valve (23) are installed sequentially on the fourth connecting pipe (21). A pressure relief and recovery device drain valve (24) is installed at one end of the pressure relief and recovery device (5). A pressure relief and recovery device exhaust valve (25) and a pressure relief and recovery device pressurization valve (26) are installed at the other end of the pressure relief and recovery device (5). The sample cylinder (4) is installed above the base plate (401).

2. The integrated closed sampling and pressure-reducing cooling device for chemical processes according to claim 1, characterized in that: The upper surface of the base plate (401) is provided with a placement groove (402) on one side, and support legs (403) are installed at the four corners of the lower surface of the base plate (401). Each support leg (403) is equipped with a moving wheel (404) at its bottom.

3. The integrated closed sampling and depressurization cooling device for chemical processes according to claim 2, characterized in that: A side plate (405) is installed on one side of the upper surface of the base plate (401), a first mounting groove (406) is opened on one side surface of the side plate (405), and a drive motor (407) is installed on the top of the side plate (405).

4. The integrated closed sampling and depressurization cooling device for chemical processes according to claim 3, characterized in that: An adjusting screw (408) is installed at the output end of the drive motor (407). One end of the adjusting screw (408) is rotatably mounted on the bottom inner wall of the first mounting groove (406). A screw sleeve (409) is installed on the body of the adjusting screw (408) through a threaded engagement.

5. The integrated closed sampling and depressurization cooling device for chemical processes according to claim 4, characterized in that: A movable plate (410) is installed at one end of the lead screw sleeve (409). A second mounting groove (411) is provided on both sides of the middle part of the movable plate (410). A push cylinder (412) is installed inside each of the second mounting grooves (411).

6. The integrated closed sampling and pressure-reducing cooling device for chemical processes according to claim 5, characterized in that: Each of the push cylinders (412) has a mounting bracket (413) installed at its output end and on the outside of the moving plate (410), and each of the mounting brackets (413) has a connecting bracket (414) installed at the middle of one end and at both the top and bottom ends.

7. The integrated closed sampling and depressurization cooling device for chemical processes according to claim 6, characterized in that: Each of the connecting frames (414) is equipped with an arc-shaped clamp (415) at one end, and each of the mounting frames (413) is equipped with limit rods (416) on both the upper and lower sides.

8. The integrated closed sampling and depressurization cooling device for chemical processes according to claim 7, characterized in that: The upper and lower sides of the movable plate (410) are equipped with sliding grooves (417), and one end of each limiting rod (416) is slidably disposed inside the sliding groove (417) at the corresponding position.

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