Isolation sampling device for cyclohexanone production

Abstract

The utility model relates to the technical field of chemical engineering, and discloses an isolation sampling device for cyclohexanone production, which comprises a storage tank, a connecting pipe is fixedly connected onto the storage tank, a first regulating valve is fixedly mounted on the connecting pipe, a sampling barrel is fixedly connected onto a sampling box, a pull rod is slidably connected onto the sampling barrel, and a second regulating valve is fixedly mounted on the pull rod. One end of the pull rod is fixedly connected with a top cover, the other end of the pull rod is fixedly connected with a piston, the pull rod is sleeved with a first spring, and the bottom end of the sampling barrel is fixedly connected with a sampling head. When the cyclohexanone sampler is used, an operator only needs to slightly press the top cover to drive the piston to move downwards, cyclohexanone solution can be extracted through the arrangement of the first spring, the operator can intuitively adjust the position of the limiting block according to the graduated scale, and accurate control over the sampling amount is achieved through the combined action of the threaded rod, the limiting block and the abutting plate; errors caused by human factors are avoided, and the sampling efficiency and the sampling accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to an isolation sampling device for cyclohexanone production. Background Art

[0002] Cyclohexanone, an important organic chemical raw material, contains a six-membered ring and a carbonyl group in its molecular structure, and has unique chemical properties. It is widely used as a precursor for the synthesis of polymer materials such as caprolactam, adipic acid, nylon-6 and nylon-66. It is also a key intermediate in the synthesis of solvents, coatings, pharmaceuticals and pesticides. During the production process, isolated sampling is a key step in chemical production to ensure personnel safety, prevent cross-contamination and achieve accurate analysis.

[0003] However, traditionally, cyclohexanone isolation sampling is usually performed manually by holding a sampling cylinder and a test tube. During this process, it is necessary to simultaneously observe the sampling volume scale and precisely control the piston movement. This can easily lead to sampling volume errors due to line of sight obstruction or hand shaking. Holding the tool for sampling for a long time increases the operator's labor intensity and may also reduce the sampling accuracy due to fatigue. Therefore, an isolation sampling device for cyclohexanone production is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an isolation sampling device for cyclohexanone production.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an isolation sampling device for cyclohexanone production, comprising a storage tank, a connecting pipe fixedly connected to the storage tank, a first regulating valve fixedly installed on the connecting pipe, one end of the connecting pipe fixedly connected to a sampling box, a sampling cylinder fixedly connected to the sampling box, a pull rod slidably connected to the sampling cylinder, one end of the pull rod fixedly connected to a top cover, the other end of the pull rod fixedly connected to a piston, the piston fits the inner wall of the sampling cylinder, the top end of the sampling cylinder is fixedly connected to a mounting plate, a first spring is sleeved on the pull rod, the two ends of the first spring are respectively fixedly connected to the mounting plate and the top cover, and the bottom end of the sampling cylinder is fixedly connected to a sampling head.

[0006] As a further description of the above technical solution:

[0007] The top cover is fixedly connected with a sliding rod, which slides on the mounting plate. The end of the sliding rod away from the top cover is fixedly connected with a back plate, which slides on the sampling tube. A threaded rod is rotatably connected to the mounting plate, and a limit block is threadedly connected to the threaded rod. A scale is fixedly connected to the sampling tube.

[0008] As a further description of the above technical solution:

[0009] The sampling cylinder is fixedly connected with a delivery pipe, a second regulating valve is fixedly installed on the delivery pipe, a liquid outlet pipe is fixedly connected to the second regulating valve, the delivery pipe is obliquely arranged on the sampling cylinder, and a discharge port is fixedly connected to the sampling box.

[0010] As a further description of the above technical solution:

[0011] The sampling box is fixedly connected to a fixing seat, the fixing seat is fixedly connected to a fixing frame, the fixing frame is slidably connected to a locking rod, one end of the locking rod is fixedly connected to a handle, the other end of the locking rod is fixedly connected to a clamping block, a second spring is sleeved on the locking rod, and the two ends of the second spring are respectively fixedly connected to the fixing frame and the clamping block.

[0012] As a further description of the above technical solution:

[0013] The pull rod penetrates and slides on the mounting plate, the sampling head is located in the sampling box, and the abutment plate is located below the limiting block.

[0014] As a further description of the above technical solution:

[0015] The limiting block is located on a side of the sampling tube away from the sliding rod, and the graduated ruler is located on a side of the sampling tube close to the limiting block.

[0016] As a further description of the above technical solution:

[0017] The locking rod, the clamping block and the second spring are each provided in two groups and are symmetrically distributed on the fixing frame. The clamping block is in the shape of an arc.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, when using the isolation sampling device for cyclohexanone production, the operator only needs to lightly press the top cover to drive the piston to move downward. Through the setting of the first spring, the cyclohexanone solution can be extracted, which is labor-saving and convenient. The operator can intuitively adjust the position of the limit block according to the scale. Through the combined action of the threaded rod, the limit block and the abutment plate, the sampling amount is accurately controlled, avoiding the errors caused by human factors in the traditional method, and improving the sampling efficiency and sampling accuracy.

[0020] 2. In the utility model, when the isolation sampling device for cyclohexanone production is used, when the test tube is placed, the test tube will squeeze the clamping block, and the elastic force of the second spring will be used to firmly clamp the test tube on the fixed seat, which not only avoids the sample leakage caused by the shaking of the test tube during the sampling process, but also greatly reduces the operator's hand-held burden, making the sampling work safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an isolation sampling device for cyclohexanone production proposed by the utility model;

[0022] Figure 2 This is a partial structural cross-sectional view of an isolation sampling device for cyclohexanone production proposed by the present invention;

[0023] Figure 3 This is a partial structural diagram of an isolation sampling device for cyclohexanone production proposed by the present invention;

[0024] Figure 4 for Figure 3 A magnified view of middle A;

[0025] Figure 5 for Figure 3 Magnified view of B.

[0026] Legend:

[0027] 1. Storage tank; 2. Connecting pipe; 3. First regulating valve; 4. Sampling box; 5. Sampling tube; 6. Pull rod; 7. Top cover; 8. Piston; 9. Mounting plate; 10. First spring; 11. Sampling head; 12. Sliding rod; 13. Abutment plate; 14. Threaded rod; 15. Limit block; 16. Scale; 17. Delivery pipe; 18. Second regulating valve; 19. Liquid outlet pipe; 20. Fixing seat; 21. Fixing bracket; 22. Locking rod; 23. Handle; 24. Clamping block; 25. Second spring; 26. Discharge port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 5, the utility model provides an embodiment: an isolation sampling device for cyclohexanone production, comprising a storage tank 1, a connecting pipe 2 is fixedly connected to the storage tank 1, a first regulating valve 3 is fixedly installed on the connecting pipe 2, one end of the connecting pipe 2 is fixedly connected to a sampling box 4, a sampling cylinder 5 is fixedly connected to the sampling box 4, a pull rod 6 is slidably connected to the sampling cylinder 5, one end of the pull rod 6 is fixedly connected to a top cover 7, the other end of the pull rod 6 is fixedly connected to a piston 8, the piston 8 fits the inner wall of the sampling cylinder 5, the top end of the sampling cylinder 5 is fixedly connected to a mounting plate 9, a first spring 10 is sleeved on the pull rod 6, the two ends of the first spring 10 are respectively fixedly connected to the mounting plate 9 and the top cover 7, the bottom end of the sampling cylinder 5 is fixed It is connected to a sampling head 11, and the top cover 7 is pressed downward. The top cover 7 drives the piston 8 to slide downward in the sampling tube 5 through the pull rod 6. At the same time, the top cover 7 drives the back plate 13 to slide through the slide rod 12. At this time, the top cover 7 will squeeze the sampling head 11, and then release the top cover 7. Under the elastic force of the first spring 10, the piston 8 and the back plate 13 will reset, so that the sampling head 11 can be used to extract the solution until the back plate 13 is blocked by the limit block 15 and no longer moves. At this time, quantitative extraction of cyclohexanone solution can be achieved. The operator only needs to press the top cover 7 lightly to drive the piston 8 to move downward. Through the setting of the first spring 10, the extraction of cyclohexanone solution can be achieved, which is labor-saving and convenient to operate, and improves the sampling efficiency.

[0030] In addition, the top cover 7 is fixedly connected with a slide rod 12, which slides on the mounting plate 9. The end of the slide rod 12 away from the top cover 7 is fixedly connected with a plate 13, which slides on the sampling tube 5. The mounting plate 9 is rotatably connected with a threaded rod 14, which is threadedly connected to a limit block 15. The sampling tube 5 is fixedly connected with a scale 16. The operator can intuitively adjust the position of the limit block 15 according to the scale 16. Through the combined action of the threaded rod 14, the limit block 15 and the plate 13, The sampling volume is precisely controlled, the error caused by human factors in the traditional method is avoided, and the sampling accuracy is improved. The sampling cylinder 5 is fixedly connected with a delivery pipe 17, a second regulating valve 18 is fixedly installed on the delivery pipe 17, a liquid outlet pipe 19 is fixedly connected to the second regulating valve 18, the delivery pipe 17 is obliquely arranged on the sampling cylinder 5, a discharge port 26 is fixedly connected to the sampling box 4, a fixing seat 20 is fixedly connected to the fixing seat 20, a fixing frame 21 is fixedly connected to the fixing frame A locking rod 22 is slidably connected to 21, one end of the locking rod 22 is fixedly connected to a handle 23, the other end of the locking rod 22 is fixedly connected to a clamping block 24, a second spring 25 is sleeved on the locking rod 22, and the two ends of the second spring 25 are respectively fixedly connected to the fixing frame 21 and the clamping block 24, the pull rod 6 slides through the mounting plate 9, the sampling head 11 is located in the sampling box 4, the plate 13 is located below the limit block 15, the limit block 15 is located on the side of the sampling tube 5 away from the slide rod 12, and the scale 16 is located at On the side of the sampling tube 5 close to the limit block 15, two groups of locking rods 22, clamping blocks 24, and second springs 25 are provided and symmetrically distributed on the fixing frame 21. The clamping blocks 24 are in the shape of an arc. When placing the test tube, the test tube will squeeze the clamping blocks 24. The elastic force of the second spring 25 is used to firmly clamp the test tube on the fixing seat 20, which not only avoids sample leakage caused by shaking of the test tube during the sampling process, but also greatly reduces the operator's hand-held burden, making the sampling work safer.

[0031] Working principle: When using the isolation sampling device for cyclohexanone production, the operator opens the connecting pipe 2, so that the cyclohexanone solution in the storage tank 1 flows to the sampling box 4 through the first regulating valve 3. When the solution flowing into the sampling box 4 submerges the sampling head 11, the connecting pipe 2 can be closed, and then the limit block 15 is rotated to move the limit block 15 on the threaded rod 14. Through the setting of the scale 16, the operator can adjust the position of the limit block 15 according to the square root of the amount of solution to be collected, and then press the top cover 7 downward. The top cover 7 drives the piston 8 to slide downward in the sampling tube 5 through the pull rod 6 to discharge the air. At the same time, the top cover 7 will drive the back plate 13 to slide through the slide rod 12. At this time, the top cover 7 will squeeze the first spring 10, and then release the top cover 7. Under the elastic force of the first spring 10, the piston 8 and the back plate 13 will reset, so that the sampling head 1 can be used. 1 Extract the solution until the stop plate 13 is stopped by the limit block 15 and no longer moves. At this time, quantitative extraction of cyclohexanone solution can be achieved. The operation is simple. After the required cyclohexanone solution is extracted, the test tube for sampling and collection is placed between the two sets of clamping blocks 24. Due to the thickness of the test tube, the second spring 25 will be squeezed by the clamping block 24. Under the reaction force of the second spring 25, the clamping block 24 will be driven to reset, so that the test tube is clamped on the fixed seat 20 by the two sets of clamping blocks 24. Then the liquid outlet pipe 19 is placed in the test tube, and the second regulating valve 18 is opened. Since the delivery pipe 17 is obliquely arranged on the sampling cylinder 5, under the action of gravity, the sampling solution in the sampling cylinder 5 will flow from the delivery pipe 17 to the liquid outlet pipe 19, and then flow into the test tube, thereby completing the sampling. After the sampling is completed, the excess solution in the sampling box 4 can be discharged through the discharge port 26.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An isolation sampling device for cyclohexanone production, comprising a storage tank (1), characterized in that: The storage tank (1) is fixedly connected to a connecting pipe (2), a first regulating valve (3) is fixedly installed on the connecting pipe (2), one end of the connecting pipe (2) is fixedly connected to a sampling box (4), a sampling cylinder (5) is fixedly connected to the sampling box (4), a pull rod (6) is slidably connected to the sampling cylinder (5), one end of the pull rod (6) is fixedly connected to a top cover (7), the other end of the pull rod (6) is fixedly connected to a piston (8), the piston (8) is attached to the inner wall of the sampling cylinder (5), the top end of the sampling cylinder (5) is fixedly connected to a mounting plate (9), a first spring (10) is sleeved on the pull rod (6), the two ends of the first spring (10) are respectively fixedly connected to the mounting plate (9) and the top cover (7), and the bottom end of the sampling cylinder (5) is fixedly connected to a sampling head (11).

2. The isolation sampling device for cyclohexanone production according to claim 1, characterized in that: The top cover (7) is fixedly connected to a slide rod (12), which slides on the mounting plate (9). The end of the slide rod (12) away from the top cover (7) is fixedly connected to a support plate (13), which slides on the sampling tube (5). The mounting plate (9) is rotatably connected to a threaded rod (14), which is threadedly connected to a limit block (15). The sampling tube (5) is fixedly connected to a scale (16).

3. The isolation sampling device for cyclohexanone production according to claim 2, characterized in that: The sampling cylinder (5) is fixedly connected to a delivery pipe (17), a second regulating valve (18) is fixedly installed on the delivery pipe (17), a liquid outlet pipe (19) is fixedly connected to the second regulating valve (18), the delivery pipe (17) is obliquely arranged on the sampling cylinder (5), and a discharge port (26) is fixedly connected to the sampling box (4).

4. The isolation sampling device for cyclohexanone production according to claim 3, characterized in that: The sampling box (4) is fixedly connected to a fixing seat (20), the fixing seat (20) is fixedly connected to a fixing frame (21), the fixing frame (21) is slidably connected to a locking rod (22), one end of the locking rod (22) is fixedly connected to a handle (23), the other end of the locking rod (22) is fixedly connected to a clamping block (24), a second spring (25) is sleeved on the locking rod (22), and the two ends of the second spring (25) are respectively fixedly connected to the fixing frame (21) and the clamping block (24).

5. The isolation sampling device for cyclohexanone production according to claim 4, characterized in that: The pull rod (6) penetrates and slides on the mounting plate (9), the sampling head (11) is located in the sampling box (4), and the abutment plate (13) is located below the limit block (15).

6. The isolation sampling device for cyclohexanone production according to claim 5, characterized in that: The limit block (15) is located on a side of the sampling tube (5) away from the slide bar (12), and the scale (16) is located on a side of the sampling tube (5) close to the limit block (15).

7. The isolation sampling device for cyclohexanone production according to claim 6, characterized in that: The locking rod (22), the clamping block (24), and the second spring (25) are each provided in two groups and are symmetrically distributed on the fixing frame (21); the clamping block (24) is in the shape of an arc.

Images