Full-automatic high-pressure vessel sampling device

Abstract

The utility model discloses a full-automatic high-pressure container sampling device, which relates to the technical field of sampling devices, and comprises a high-pressure reaction kettle, a sampling pipeline, a control unit, a waste liquid barrel and a sampling bottle, the sampling pipeline comprises a first pipeline, a second pipeline, a sample storage section, a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline, the control unit comprises a first sampling valve, a second sampling valve, a rinsing valve and a control system, one end of the first pipeline is connected with the high-pressure reaction kettle, the other end of the first pipeline is connected with the first sampling valve, one end of the second pipeline is connected with the first sampling valve, and the other end of the second pipeline is connected with the sixth pipeline. By means of the sampling device, full-automatic under-pressure sampling operation of the high-pressure container is achieved, potential safety hazards caused by manual sampling operation are avoided, shutdown operation is not needed in the sampling process, and production continuity is better.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, and in particular to a fully automatic high-pressure vessel sampling device. Background Technology

[0002] In the field of chemical production, high-pressure reactors are often used as reaction vessels for chemical reactions. The determination of the reaction endpoint is often done by sampling, and sampling from high-pressure vessels is a frequent task.

[0003] Conventional sampling methods often involve sampling under pressure or sampling while the machine is stopped. Regardless of the method, there are either significant safety hazards or disruptions to production continuity. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a fully automatic high-pressure vessel sampling device, which solves the technical problems that existing sampling methods have significant safety hazards or affect the continuity of production.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fully automatic high-pressure vessel sampling device includes a high-pressure reactor, a sampling pipeline, a control unit, a waste liquid tank, and a sampling bottle. The sampling pipeline is responsible for connecting the high-pressure reactor, the waste liquid tank, and the sampling bottle. The sampling pipeline includes pipe one, pipe two, a sample storage section, pipe three, pipe four, pipe five, and pipe six. The control unit includes sampling valve one, sampling valve two, a rinsing valve, and a control system.

[0007] Preferably, one end of the first pipe is connected to the high-pressure reactor and the other end is connected to the sampling valve; one end of the second pipe is connected to the sampling valve and the other end is connected to the sample storage section; one end of the third pipe is connected to the sample storage section and the other end is connected to the rinsing valve; and one end of the fourth pipe is connected to the rinsing valve and the other end is connected to the waste liquid tank.

[0008] Preferably, one end of pipe five is connected to pipe three, and the other end is connected to sampling valve two; one end of pipe six is ​​connected to sampling valve two, and the other end is connected to sampling bottle.

[0009] Preferably, the sampling valve one, sampling valve two, and rinsing valve are all pneumatic on / off valves, and the control system is a PLC or DCS system.

[0010] This utility model has the following beneficial effects:

[0011] This sampling device enables fully automated under-pressure sampling of high-pressure containers, eliminating the safety hazards associated with manual sampling. The sampling process does not require shutdown, resulting in better production continuity. Attached Figure Description

[0012] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0013] Figure 1 This is a structural diagram of the fully automatic high-pressure vessel sampling device of this utility model.

[0014] Legend: 1. High-pressure reactor; 2. Waste liquid tank; 3. Sampling bottle; 4. Control unit; 41. Sampling valve one; 42. Sampling valve two; 43. Washing valve; 44. Control system; 5. Sampling pipeline; 51. Pipeline one; 52. Pipeline two; 53. Sample storage section; 54. Pipeline three; 55. Pipeline four; 56. Pipeline five; 57. Pipeline six. Detailed Implementation

[0015] This application provides a fully automatic high-pressure vessel sampling device, which effectively solves the problems of significant safety hazards or disruption to production continuity associated with existing sampling methods. During sampling, after installing the waste liquid tank and sampling bottle, the device first closes sampling valve two and the rinsing valve, then opens sampling valve one. After approximately [number] minutes, sampling valve one is closed, and the rinsing valve is opened to rinsing the pipeline. After rinsing, the rinsing valve is closed, and sampling valve one is opened. After approximately [number] minutes, sampling valve one is closed, and sampling valve two is opened to inject the sample liquid into the sampling bottle. Sampling is then completed, and the waste liquid tank is emptied periodically. This sampling device achieves fully automatic pressurized sampling of high-pressure vessels, eliminating the safety hazards associated with manual sampling. The sampling process does not require shutdown, resulting in better production continuity.

[0016] Example: Figure 1 As shown, the technical solution in this application embodiment effectively solves the technical problem that existing sampling methods have significant safety hazards or affect the continuity of production. The overall idea is as follows:

[0017] To address the problems existing in the prior art, this utility model provides a fully automatic high-pressure container sampling device, including a high-pressure reactor 1, a sampling pipeline 5, a control unit 4, a waste liquid tank 2, and a sampling bottle 3. The sampling pipeline 5 connects the high-pressure reactor 1, the waste liquid tank 2, and the sampling bottle 3. The sampling pipeline 5 includes pipe 1 51, pipe 2 52, a sample storage section 53, pipe 3 54, pipe 4 55, pipe 56, and pipe 6 57. The control unit 4 includes sampling valve 1 41, sampling valve 2 42, a rinsing valve 43, and a control system 44. Pipe 1 5... Pipeline 1 is connected at one end to high-pressure reactor 1 and at the other end to sampling valve 41. Pipeline 2 is connected at one end to sampling valve 41 and at the other end to sample storage section 53. Pipeline 3 is connected at one end to sample storage section 53 and at the other end to rinsing valve 43. Pipeline 4 is connected at one end to rinsing valve 43 and at the other end to waste liquid tank 2. Pipeline 56 is connected at one end to pipeline 3 54 and at the other end to sampling valve 42. Pipeline 6 is connected at one end to sampling valve 42 and at the other end to sampling bottle 3. Sampling valves 41, 42, and rinsing valve 43 are connected to each other. All washing valves 43 are pneumatic on / off valves. The control system 44 is a PLC or DCS system. Waste liquid tank 2 is used to hold pre-washing waste liquid from sampling pipeline 5. Sampling bottle 3 is used to hold sample liquid. The volume of storage section 53 is smaller than that of sampling bottle 3, and the volume of waste liquid tank 2 is much larger than that of storage section 53. All pipelines are made of corrosion-resistant metal, preferably stainless steel and titanium. Sampling valve 1 41, sampling valve 2 42, and rinsing valve 43 are all pneumatic on / off valves, preferably pneumatic stopcock valves. During sampling, after installing waste liquid tank 2 and sampling bottle 3, first close sampling valve 2 42 and rinsing valve 43. Open sampling valve 41 (valve 43), close sampling valve 41 after about 1 minute, open rinsing valve 43 to rinse the pipeline, close rinsing valve 43 after rinsing, open sampling valve 41 (valve 41), close sampling valve 41 after about 1 minute, open sampling valve 42 (valve 2) to inject the sample liquid into sampling bottle 3, close sampling valve 42, and after sampling is complete, periodically empty waste liquid tank 2. This sampling device realizes fully automatic pressurized sampling operation of high-pressure containers, solves the safety hazards caused by manual sampling operation, and the sampling process does not require stopping operation, resulting in better production continuity.

[0018] Working principle:

[0019] In the first step, during the sampling operation, after installing the waste liquid tank 2 and the sampling bottle 3, first close the sampling valve 2 42 and the rinsing valve 43, open the sampling valve 1 41, and after about 1 minute, close the sampling valve 1 41 and open the rinsing valve 43 to rinse the pipeline. After rinsing, close the rinsing valve 43, open the sampling valve 1 41, and after about 1 minute, close the sampling valve 1 41 and open the sampling valve 2 42 to inject the sample liquid into the sampling bottle 3. Close the sampling valve 2 42. After sampling is completed, empty the waste liquid tank 2 periodically. This sampling device realizes fully automatic pressurized sampling operation of high-pressure containers, which solves the safety hazards caused by manual sampling operation. The sampling process does not require stopping the operation, resulting in better production continuity.

[0020] In the second step, waste liquid tank 2 is used to hold pre-washing waste liquid from sampling pipeline 5, sampling bottle 3 is used to hold sample liquid, the volume of sample storage section 53 is smaller than that of sampling bottle 3, and the volume of waste liquid tank 2 is much larger than that of sample storage section 53. All pipelines are made of corrosion-resistant metal materials, preferably stainless steel and titanium. Sampling valve 1 41, sampling valve 2 42 and rinsing valve 43 are all pneumatic on / off valves, preferably pneumatic plug valves.

[0021] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A fully automatic high-pressure container sampling device, comprising a high-pressure reactor (1), a sampling pipeline (5), a control unit (4), a waste liquid tank (2), and a sampling bottle (3), characterized in that: The sampling pipeline (5) is responsible for connecting the high-pressure reactor (1), the waste liquid tank (2) and the sampling bottle (3); The sampling pipeline (5) includes pipeline one (51), pipeline two (52), sample storage section (53), pipeline three (54), pipeline four (55), pipeline five (56), and pipeline six (57). The control unit (4) includes sampling valve one (41), sampling valve two (42), rinsing valve (43) and control system (44).

2. The fully automatic high-pressure vessel sampling device according to claim 1, characterized in that: One end of the pipeline (51) is connected to the high-pressure reactor (1), and the other end is connected to the sampling valve (41); One end of the second pipe (52) is connected to the first sampling valve (41), and the other end is connected to the sample storage section (53).

3. The fully automatic high-pressure vessel sampling device according to claim 2, characterized in that: One end of the pipe (54) is connected to the sample storage section (53), and the other end is connected to the rinsing valve (43); One end of the pipe (55) is connected to the rinsing valve (43), and the other end is connected to the waste liquid tank (2).

4. The fully automatic high-pressure vessel sampling device according to claim 3, characterized in that: One end of the fifth pipe (56) is connected to the third pipe (54), and the other end is connected to the second sampling valve (42); One end of the six pipes (57) is connected to the second sampling valve (42), and the other end is connected to the sampling bottle (3).

5. The fully automatic high-pressure vessel sampling device according to claim 1, characterized in that: The sampling valve one (41), sampling valve two (42) and rinsing valve (43) are all pneumatic on / off valves.

6. The fully automatic high-pressure vessel sampling device according to claim 1, characterized in that: The control system (44) is a PLC or DCS system.

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