Closed sampler

Abstract

The utility model discloses a closed sampler which comprises a box body, a sampling tube is installed in the box body, the inlet end and the outlet end of the sampling tube both penetrate through the box body and are located on the outer side of the box body, a glass tube is installed on the sampling tube, scales are arranged on the glass tube, a discharging tube is further installed on one side of the sampling tube, and the discharging tube is connected with the sampling tube. A discharge pipe is arranged in the box body, a sampling head is arranged at one end of the discharge pipe, valves are arranged on the inlet and outlet ends of the sampling pipe and the discharge pipe, a limiting structure for placing a sampling bottle is also arranged on the box body, a sealing cover is arranged on one side of the box body, and a control structure corresponding to the valve of the sampling head is arranged on the sealing cover. According to the sealed sampler, the sampling position is arranged, the contact between a sample and people can be reduced during sampling, so that the purpose of protecting the sampling personnel is achieved, the consistency between the sampling position and the inside of the kettle is high, the later detection is accurate, no residue is left after sampling, and the sampling is safe and efficient.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to a sealed sampler. Background Technology

[0002] In the disproportionation of light aromatics, the higher the purity of the product, the better the product obtained in subsequent reactions. Therefore, purification operations are carried out on each raw material at each stage, especially for the raw materials obtained from the coal and petroleum stages, whose purity is only about 80%. The main purification method is to use a refining tower. During the purification process, samples of the purified raw materials need to be taken and tested to ensure the effectiveness of subsequent reactions.

[0003] The current sampling method involves installing pipes and valves at the bottom of the vessel and opening the valves to take samples. This method is too simplistic and crude. Furthermore, the sampling process is quantitative, requiring the sampling personnel to closely monitor the scale to reduce waste caused by over-sampling. This poses a certain risk to the sampling personnel, especially in the crude benzene purification process, which is inherently dangerous. Therefore, we have proposed a closed sampler to address the above problems. Utility Model Content

[0004] This application provides a closed sampler, which solves the problems of residue, insufficient sample accuracy, and easy contact between the sample and the sampling personnel when sampling through a single pipe during vessel sampling.

[0005] This application provides a sealed sampler, including a housing, a sampling tube installed inside the housing, the inlet and outlet ends of the sampling tube both penetrating the housing and located on the outside of the housing, a glass tube installed on the sampling tube, the glass tube having graduations, a discharge pipe also installed on one side of the sampling tube, a sampling head installed at one end of the discharge pipe, valves provided on both the inlet and outlet ends of the sampling tube and the discharge pipe, a limiting structure for placing sampling bottles installed in the housing, a cap installed on one side of the housing, and a control structure corresponding to the valve of the sampling head provided on the cap.

[0006] Preferably, the limiting structure includes a positioning plate fixed inside the box and a limiting plate placed inside the box.

[0007] Preferably, the control structure includes an adjustment knob mounted on the cover, the adjustment knob passing through the cover, and a limit groove provided on the adjustment knob, the limit groove corresponding to the valve handle of the valve.

[0008] Preferably, the cover is provided with a glass window.

[0009] Preferably, the sampling tube is supported and fixed inside the box by a support frame.

[0010] Preferably, a sealing strip is provided at the contact point between the box body and the cover.

[0011] Preferably, a pressure gauge is installed on the sampling tube.

[0012] Preferably, a ground wire is also installed on the enclosure.

[0013] Preferably, both ends of the sampling tube are connected via connecting flanges.

[0014] As can be seen from the above technical solution, this application provides a closed sampler. When using this application, first open the valves at the inlet and outlet of the sampling tube to allow the liquid in the reactor to enter the sampling tube. After a period of time, observe whether the color of the liquid meets the standard through the glass tube. Then close the valves at both ends of the sampling tube, place the sampling bottle in the box, and then limit the sampling bottle through the limiting structure and close the cap. The opening and closing of the discharge pipe can also be controlled by the control structure, or the valve can be opened directly to open the discharge pipe for discharge. When the scale drops to the specified height, close the valve, take out the sampling bottle, close the cap, and complete the sampling work. When the reactor discharges, simply open the valves at the inlet and outlet of the sampling tube to empty the liquid in the sampling tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up the sampling tube and sampling head, the sampling tube adopts a loop design, so that the liquid entering the sampling tube and the liquid in the vessel circulate together and can be discharged together when the material is discharged. This also ensures the consistency between the collected liquid and the liquid in the vessel, improves the detection accuracy, and avoids liquid residue in the pipeline.

[0017] 2. The glass tube allows observation of the solution inside the vessel. During discharge, the amount of material to be discharged can be calculated based on the scale on the glass tube, allowing for observation of the discharge from a safe distance.

[0018] 3. The limiting structure can limit the sampling bottles or cups, preventing them from tipping over after discharge and avoiding contact caused by hand handling;

[0019] 4. By designing a cap and control structure, after the cap is closed, the control structure and the valve on the discharge pipe can be aligned, allowing the discharge pipe to be opened from the cap, thus preventing liquid from splashing out and improving safety.

[0020] In summary, this application proposes a sealed sampler by setting up the sampling point, which can reduce the contact between the sample and the person during sampling, thereby achieving the purpose of protecting the sampling personnel. In addition, the sample of this application has high consistency with the contents of the vessel, accurate subsequent detection, and no residue left after sampling, making the sampling safe and efficient. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a sealed sampler proposed in this utility model;

[0023] Figure 2 This is a schematic diagram showing the placement of the sampling bottle in a sealed sampler according to this utility model.

[0024] Figure 3 This is a schematic diagram of the closed state of the sealed sampler proposed in this utility model.

[0025] In the diagram: 1. Box body, 2. Sealing strip, 3. Sampling tube, 4. Glass tube, 5. Discharge pipe, 6. Sampling head, 7. Pressure gauge, 8. Limiting plate, 9. Ground wire, 10. Positioning plate, 11. Support frame, 12. Limiting groove, 13. Adjusting knob, 14. Glass window, 15. Cover, 16. Connecting flange. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] See Figure 1-3A sealed sampler, as described in this application, is installed on one side of a reaction vessel to achieve non-contact sampling. Specifically, it includes a housing 1, which can be installed on the reaction vessel or on the ground via a bracket. A sampling tube 3 is installed inside the housing 1, arranged in a C-shape within the housing 1. Both the inlet and outlet ends of the sampling tube 3 penetrate the housing 1 and are located on the outside of the housing 1, connecting to the inlet and outlet ends of the reaction vessel. Specifically, both ends of the sampling tube 3 are connected via connecting flanges 16, which connect to the pipeline of the reaction vessel at the connection point to improve sealing. The sampling tube 3... A glass tube 4 is installed, and the sampling tube 3 and the glass tube 4 together form a passage. Liquid flows through the glass tube 4, allowing observation of the solution inside the vessel. The condition of the solution inside the vessel can be visually observed. The glass tube 4 is marked with graduations, allowing observation of the sampled amount during sampling. It is worth noting that the graduations in this application are for discharge volume, and the graduations increase sequentially from top to bottom. The first graduation at the top represents the sampling volume required to reach that position, and so on downwards. A discharge pipe 5 is also installed on one side of the sampling tube 3, located at the lower end of the glass tube 4. The sampling volume can be observed through the glass tube 4. The discharge tube 5 has a short length and a large diameter, which can discharge all the liquid in the discharge tube 5. A sampling head 6 is installed at one end of the discharge tube 5. The sampling head 6 mainly controls the liquid flow direction, discharging the liquid in a straight line to prevent the liquid from flowing around. Valves are installed at the inlet and outlet ends of the sampling tube 3 and on the discharge tube 5. This application uses three valves to control the liquid flow direction. Since this application adopts non-contact sampling, the box 1 is also equipped with a limiting structure for placing the sampling bottle. The limiting structure mainly controls the sampling bottle. Positioning and limiting prevent the sampling bottle from tipping over due to liquid impact when the door is opened, thus improving sampling safety. A cover 15 is installed on one side of the housing 1. This application is suitable for outdoor installation. After sampling, it can be closed to protect the internal components from the influence of the external environment. Furthermore, this application can also perform sampling work with the cover 15 closed. The cover 15 is equipped with a control structure corresponding to the valve of the sampling head 6. After the cover 15 is closed, the control structure can cooperate with the valve at the sampling head 6 to open the valve at that location from the outside, thereby achieving the purpose of closed sampling.

[0028] In this utility model, the limiting structure includes a positioning plate 10 fixed inside the housing 1 and a limiting plate 8 placed inside the housing 1. The positioning plate 10 is fixed inside the housing 1, and the sampling bottle is placed inside the housing 1 and abuts against the positioning plate 10 to achieve the purpose of positioning. In specific design, the side of the positioning plate 10 that contacts the sampling bottle can be set to an arc shape to achieve faster positioning. Furthermore, there are at least two positioning plates 10 to position two points of the sampling bottle. After the sampling bottle is placed... Figure 2 The limiting plate 8 is placed diagonally inside the box 1, with one end abutting against the corner of the box 1 and the other end abutting against the sampling bottle. It is worth noting that the limiting plate 8 abuts at the position between the two positioning plates 10, thereby positioning the sampling bottle through three points.

[0029] In this utility model, the control structure includes an adjustment knob 13 installed on the cover 15. The adjustment knob 13 passes through the cover 15 and can be rotated externally. The adjustment knob 13 is provided with a limit groove 12, which corresponds to the valve handle. In this application, the valve handle is "I" shaped, and the limit groove 12 is also "I" shaped. When the cover 15 is closed, the valve handle is locked into the limit groove 12, so the rotation of the valve can be controlled by rotating the adjustment knob 13 externally. Sampling by closing the cover 15 can effectively protect the sampling personnel and prevent liquid from splashing onto them. The cover 15 is provided with a glass window 14 for easy sampling and observation from the outside.

[0030] In some embodiments, the sampling tube 3 is supported and fixed inside the housing 1 by the support frame 11. The sampling tube 3 is supported inside the housing 1, which can effectively protect the pipeline and prevent the vibration caused by the flow of liquid inside the pipeline from affecting the pipeline.

[0031] In this application, a sealing strip 2 is also provided at the contact point between the housing 1 and the cover 15, which can effectively prevent external rain, snow and sand from entering the application and affecting the service life of the valve after closing.

[0032] In this invention, a pressure gauge 7 is installed on the sampling tube 3, which can be used to observe the pressure inside the pipe and avoid excessive pressure causing the valve to open too quickly, resulting in a rapid release of liquid and resulting in a shock.

[0033] In this utility model, a ground wire 9 is also installed on the box 1 to prevent static electricity from being generated on the box 1.

[0034] As can be seen from the above technical solution, when using it, first open the valves at the inlet and outlet of the sampling tube 3 to allow the liquid in the reactor to enter the sampling tube 3. After a period of time, the color of the liquid can be observed through the glass tube 4 to see if it meets the standard. Then, close the valves at both ends of the sampling tube 3, place the sampling bottle in the box 1, and then limit the sampling bottle through the limiting structure. Close the cap 15. The valve can also be opened directly by controlling the opening and closing of the discharge pipe 5 through the control structure to discharge the material. When the scale drops to the specified height, close the valve, take out the sampling bottle, close the cap 15, and complete the sampling work. When the reactor discharges the material, open the valves at the inlet and outlet of the sampling tube 3 to empty the liquid in the sampling tube 3.

[0035] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0036] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A sealed sampler, comprising a housing (1), characterized in that: A sampling tube (3) is installed inside the box (1). The inlet and outlet ends of the sampling tube (3) both penetrate the box (1) and are located on the outside of the box (1). A glass tube (4) is installed on the sampling tube (3). The glass tube (4) is marked with a scale. A discharge pipe (5) is also installed on one side of the sampling tube (3). A sampling head (6) is installed at one end of the discharge pipe (5). Valves are provided on the inlet and outlet ends of the sampling tube (3) and the discharge pipe (5). The box (1) is also equipped with a limiting structure for placing sampling bottles. A cap (15) is installed on one side of the box (1). A control structure corresponding to the valve of the sampling head (6) is provided on the cap (15).

2. The sealed sampler according to claim 1, characterized in that, The limiting structure includes a positioning plate (10) fixed inside the box (1) and a limiting plate (8) placed inside the box (1).

3. A sealed sampler according to claim 1, characterized in that, The control structure includes an adjustment knob (13) mounted on the cover (15), the adjustment knob (13) passing through the cover (15), and a limit groove (12) provided on the adjustment knob (13), the limit groove (12) corresponding to the valve handle of the valve.

4. A sealed sampler according to claim 3, characterized in that, The cover (15) is provided with a glass window (14).

5. A sealed sampler according to claim 1, characterized in that, The sampling tube (3) is supported and fixed inside the box (1) by a support frame (11).

6. A sealed sampler according to claim 1, characterized in that, A sealing strip (2) is also provided at the contact point between the box body (1) and the cover (15).

7. A sealed sampler according to claim 1, characterized in that, A pressure gauge (7) is installed on the sampling tube (3).

8. A sealed sampler according to claim 1, characterized in that, A ground wire (9) is also installed on the enclosure (1).

9. A sealed sampler according to claim 1, characterized in that, Both ends of the sampling tube (3) are connected by connecting flanges (16).

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