Airtight sampling device for chemical production

Abstract

The utility model relates to the field of chemical production, concretely is a kind of closed sampling device for chemical production, including chemical production tank, the through connection pipe of chemical production tank side surface is provided, the one end of connection pipe is not connected chemical production tank and is provided with sampling vertical pipe, fixedly arranged with fixed disc inside sampling vertical pipe, two connecting rods that extend to the top of sampling vertical pipe inner wall are symmetrically arranged on the fixed disc, the movable disc is movably arranged on the connecting rod, the traction rod is fixedly arranged in movable disc bottom, the traction rod is through fixed disc and with fixed disc movably arranged, fixed ring is fixedly arranged on the traction rod, latex elastic membrane is arranged on the fixed ring, the latex elastic membrane is fixedly connected with sampling vertical pipe inner wall, the latex elastic membrane is set on the upper connection pipe.The utility model has solved the problem that the safety of existing open sampling is low, operation is not standard, leads to the error of analysis result.

Description

Technical Field

[0001] This utility model relates to the field of chemical production, specifically a closed sampling device for chemical production. Background Technology

[0002] Most chemicals produced in chemical plants are highly toxic and corrosive, and the production process involves high temperatures, pressures, and violent chemical reactions. Therefore, sampling is a crucial measure to ensure the safety and stability of the production process and product quality. Sampling allows for the testing of the quality of raw materials, semi-finished products, and finished products, ensuring that the manufactured products meet quality standards. Sampling helps determine the quality of raw materials, thereby controlling the production process and ensuring stable product quality.

[0003] However, existing chemical production sampling methods still have the following problems: Current chemical production uses open sampling, which leads to non-standard operations. Improper operation can result in unrepresentative samples, leading to significant errors in analytical results and substantial product waste. Furthermore, non-standard open operations can cause product spillage or spillage. Some chemical raw materials are toxic and irritating, affecting health. Therefore, it is essential to design a closed sampling device for use in existing chemical production processes. Utility Model Content

[0004] To address the shortcomings of existing technologies, current chemical production processes employ open sampling. However, open sampling can lead to non-standardized operations, resulting in unrepresentative samples and significant errors in analytical results, as well as substantial product waste. Furthermore, improper open sampling can cause product spillage or spillage, and some chemical raw materials are toxic or irritating, posing health risks. This invention proposes a closed sampling device for chemical production.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: This utility model provides a closed sampling device for chemical production, including a chemical production tank. A connecting pipe is provided on the side surface of the chemical production tank. A sampling vertical pipe is provided at the end of the connecting pipe that is not connected to the chemical production tank. The connecting pipe extends into the sampling vertical pipe. An internal thread is provided at the bottom of the sampling vertical pipe. A groove is provided above the internal thread. A fixed plate is fixedly installed inside the sampling vertical pipe. Two connecting rods extending to the top of the inner wall of the sampling vertical pipe are symmetrically arranged on the fixed plate. An annular groove located outside the connecting rod is provided at the top of the fixed plate. A movable plate is movably installed on the connecting rod. The movable disc has a sealing ring at its bottom, which is inserted into an annular groove. The movable disc has an inner cavity. A threaded rod extending into the cavity is located at the top of the sampling vertical tube. A rotating rod is located at the bottom of the threaded rod, extending into the inner cavity and movably connected to the movable disc. A traction rod is fixedly installed at the bottom of the movable disc, extending through a fixed disc and movably connected to it. A fixing ring is fixedly installed on the traction rod, and a latex elastic membrane is installed on the fixing ring. The latex elastic membrane is fixedly connected to the inner wall of the sampling vertical tube and positioned above the connecting tube. A sealing ring is located at the bottom of the traction rod, which is engaged with a slot.

[0006] Preferably, a funnel cavity is provided below the slot, and the bottom of the funnel cavity is connected to an internal threaded opening.

[0007] Preferably, the traction rod is provided with a drainage hole.

[0008] Preferably, the chemical production tank is equipped with a liquid inlet pipe, and the liquid inlet pipe is equipped with a first valve.

[0009] Preferably, the chemical production tank is equipped with a liquid outlet pipe, and a second valve is installed on the liquid outlet pipe.

[0010] Preferably, a sampling bottle is provided below the internal threaded opening, and the sampling bottle is threadedly connected to the internal threaded opening.

[0011] Preferably, a handwheel is provided at the top of the threaded rod.

[0012] Preferably, the top of the slot is provided with a sealing groove, the inside of the sealing groove is provided with a frustum groove, the top of the sealing ring is provided with a frustum block, the frustum block is configured to cooperate with the frustum groove, and a locking block is provided on the sealing ring, the locking block is configured to cooperate with the sealing groove.

[0013] Preferably, a rotating disk is provided at the bottom of the rotating rod, and the rotating disk is movably connected to the inner cavity.

[0014] The advantages of this utility model are: This invention involves installing a sampling bottle onto the internal threaded port of a sampling vertical tube. Manually turning the handwheel causes the threaded rod to rotate on the sampling vertical tube, and the rotating disk on the rotating rod rotates within the inner cavity. This allows the movable disk to move along two connecting rods until the sealing ring on the movable disk engages with the annular groove on the fixed disk. At this point, the movable disk drives the traction rod downwards, which pulls the latex elastic membrane downwards through the fixed ring, stretching the membrane. The traction rod then moves the frustum block and the sealing ring away from the frustum groove and the locking groove, respectively, until the locking block disengages from the sealing groove. The chemical solution in the chemical production tank then flows through the sampling vertical tube and the threaded rod into the drainage hole, then into the funnel cavity, and finally out through the internal threaded port. The discharged chemical solution is collected by the sampling bottle, ensuring the sampling process is completed in a closed environment, improving operational efficiency and safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the sampling vertical tube of this utility model; Figure 4 This is a cross-sectional view of the internal device of the sampling vertical tube of this utility model.

[0017] In the picture: 10. Chemical production tank; 11. Inlet pipe; 12. First valve; 13. Outlet pipe; 20. Second valve; 21. Connecting pipe; 22. Sampling riser; 23. Threaded rod; 30. Handwheel; 31. Fixed plate; 32. Connecting rod; 33. Latex elastic membrane; 40. Funnel cavity; 41. Slot; 42. Sealing groove; 43. Frustum groove; 50. Internal threaded opening; 51. Movable disc; 52. Sealing ring; 53. Annular groove; 60. Fixing ring; 61. Traction rod; 62. Drainage hole; 63. Frustum block; 70. Sealing ring; 71. Clamping block; 72. Inner cavity; 73. Rotating rod; 80. Rotary disc; 81. Sampling bottle. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] The attached figure shows a specific embodiment of this utility model. This embodiment aims to provide a closed sampling device for chemical production, including a chemical production tank 10. A through connecting pipe 21 is provided on the side surface of the chemical production tank 10 to connect the chemical production tank 10 and a sampling vertical pipe 22. The end of the connecting pipe 21 not connected to the chemical production tank 10 is provided with the sampling vertical pipe 22. The connecting pipe 21 extends into the sampling vertical pipe 22, which is used for overall closed sampling. The bottom of the sampling vertical pipe 22 is provided with an internal threaded port 50 for taking out the sampling solution. A groove 41 is provided above the internal threaded port 50 for cooperating with a sealing ring 70 for sealing. A sealing groove 42 is provided at the top of the groove 41 for cooperating with a locking block. 71. A sealing groove 42 has a frustum groove 43 inside for sealing with a frustum block 63. A fixed plate 31 is fixedly installed inside the sampling vertical tube 22 to receive the movable plate 51. Two connecting rods 32 extending symmetrically to the top of the inner wall of the sampling vertical tube 22 are arranged on the fixed plate 31 to guide the movable plate 51. An annular groove 53 located outside the connecting rods 32 is provided at the top of the fixed plate 31 to cooperate with a sealing ring 52. A movable plate 51 is movably mounted on the connecting rods 32 to move the traction rod 61. A sealing ring 52 is provided at the bottom of the movable plate 51, and the sealing ring 52 is inserted into the annular groove 53. The movable disk 51 has an internal cavity 72 to receive the rotating disk 80. A threaded rod 23 extending into the top of the sampling vertical tube 22 is used to press down the movable disk 51. A rotating rod 73 is located at the bottom of the threaded rod 23 for rotating and moving the movable disk 51 downwards. The rotating rod 73 passes through the internal cavity 72 and is movably mounted with the movable disk 51. The rotating disk 80 is located at the bottom of the rotating rod 73 and is movably mounted with the internal cavity 72. The downward movement of the entire assembly is achieved by applying pressure through the threaded rod 23. A traction rod 61 is fixedly mounted at the bottom of the movable disk 51 to pull the sealing assembly. The traction rod 61 passes through the fixed disk 31 and is fixed with the fixed disk 31. The activity setup includes a fixed ring 60 on the traction rod 61, a latex elastic membrane 33 on the fixed ring 60, and the latex elastic membrane 33 fixedly connected to the inner wall of the sampling vertical tube 22. The latex elastic membrane 33 is positioned above the connecting tube 21 and can achieve sealing and repositioning. A frustum block 63 is provided at the bottom of the traction rod 61, which is configured to cooperate with a frustum groove 43. A sealing ring 70 is provided at the bottom of the frustum block 63, which is configured to cooperate with a slot 41. A locking block 71 is provided on the sealing ring 70, which is configured to cooperate with a sealing groove 42, thereby achieving sealed sampling and improving operational safety.

[0021] To facilitate the outflow of the sampling solution, a funnel cavity 40 is provided below the slot 41, and the bottom of the funnel cavity 40 is connected to the internal threaded port 50.

[0022] In order to increase the flowability of the sampling solution and achieve the purpose of drainage, a drainage hole 62 is provided on the traction rod 61.

[0023] In order to achieve controllable liquid inlet to the chemical production tank 10, a liquid inlet pipe 11 is installed on the chemical production tank 10, and a first valve 12 is installed on the liquid inlet pipe 11.

[0024] In order to achieve controllable liquid discharge from the chemical production tank 10, a liquid discharge pipe 13 is installed on the chemical production tank 10, and a second valve 20 is installed on the liquid discharge pipe 13.

[0025] To facilitate and ensure safer closed sampling, a sampling bottle 81 is provided below the internal threaded port 20, and the sampling bottle 81 is threadedly connected to the internal threaded port 50.

[0026] To make it easier to operate the threaded rod 23, a handwheel 30 is provided at the top of the threaded rod 23.

[0027] To enhance the sealing effect, a sealing groove 42 is provided at the top of the slot 41, a frustum groove 43 is provided inside the sealing groove 42, a frustum block 63 is provided at the top of the sealing ring 70, the frustum block 63 is configured to cooperate with the frustum groove 43, and a locking block 71 is provided on the sealing ring 70, the locking block 71 is configured to cooperate with the sealing groove 42.

[0028] To facilitate rotation and movement, a rotating disk 80 is provided at the bottom of the rotating rod 73, and the rotating disk 80 is movably positioned with respect to the inner cavity 72.

[0029] The usage process and working principle of this utility model are as follows: Install the sampling bottle 81 onto the internal threaded port 50 on the sampling vertical tube 22. Manually rotate the handwheel 30 to make the threaded rod 23 rotate and move on the sampling vertical tube 22. The rotating disk 80 on the rotating rod 73 rotates on the inner cavity 72, allowing the movable disk 51 to move on the two connecting rods 32 until the sealing ring 52 on the movable disk 51 is inserted into the annular groove 53 on the fixed disk 31. At this time, the movable disk 51 drives the traction rod 61 to move downward. The traction rod 61 moves the latex elastic membrane 33 through the fixed ring 60. Pulling downwards stretches the latex elastic membrane 33, causing the traction rod 61 to move the frustum block 63 and the sealing ring 70 away from the frustum groove 43 and the slot 41, respectively, until the slot 71 disengages from the sealing groove 42. At this point, the chemical solution in the chemical production tank 10 flows into the drainage hole 62 through the sampling vertical pipe 22 and the threaded rod 23, and then flows into the funnel cavity 40 through the drainage hole 62. It is then discharged through the internal threaded port 50. The discharged sampled chemical solution is collected by the sampling bottle 81, so that the sampling process is completed in a closed environment, improving the operation effect and safety of use.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A closed sampling device for chemical production, comprising a chemical production tank (10), characterized in that: A through connecting pipe (21) is provided on the side surface of the chemical production tank (10). A sampling vertical pipe (22) is provided at the end of the connecting pipe (21) that is not connected to the chemical production tank (10). The connecting pipe (21) extends into the sampling vertical pipe (22). An internal thread (50) is provided at the bottom of the sampling vertical pipe (22). A slot (41) is provided above the internal thread (50). A fixed plate (31) is fixedly provided inside the sampling vertical pipe (22). Two connecting rods (32) extending to the top of the inner wall of the sampling vertical pipe (22) are symmetrically provided on the fixed plate (31). An annular groove (53) located outside the connecting rods (32) is provided at the top of the fixed plate (31). A movable plate (51) is movably provided on the connecting rods (32). A sealing ring (52) is provided at the bottom of the movable plate (51). The sealing ring (52) and the annular groove (53) are fitted together. The movable disc (51) has an inner cavity (72) inside. The top of the sampling vertical tube (22) is provided with a threaded rod (23) that extends into the interior. The bottom of the threaded rod (23) is provided with a rotating rod (73). The rotating rod (73) extends into the inner cavity (72) and is movably connected with the movable disc (51). The bottom of the movable disc (51) is fixedly provided with a traction rod (61). The traction rod (61) extends through the fixed disc (31) and is movably connected with the fixed disc (31). A fixing ring (60) is fixedly provided on the traction rod (61). A latex elastic membrane (33) is provided on the fixing ring (60). The latex elastic membrane (33) is fixedly connected to the inner wall of the sampling vertical tube (22). The latex elastic membrane (33) is located above the connecting tube (21). The bottom of the traction rod (61) is provided with a sealing ring (70). The sealing ring (70) is matched with the slot (41).

2. The closed sampling device for chemical production according to claim 1, characterized in that: A funnel cavity (40) is provided below the slot (41), and the bottom of the funnel cavity (40) is connected to the internal threaded port (50).

3. The closed sampling device for chemical production according to claim 1, characterized in that: The traction rod (61) is provided with a drainage hole (62).

4. The closed sampling device for chemical production according to claim 1, characterized in that: The chemical production tank (10) is equipped with an inlet pipe (11), and the inlet pipe (11) is equipped with a first valve (12).

5. The closed sampling device for chemical production according to claim 1, characterized in that: The chemical production tank (10) is equipped with a liquid outlet pipe (13), and a second valve (20) is installed on the liquid outlet pipe (13).

6. The closed sampling device for chemical production according to claim 1, characterized in that: A sampling bottle (81) is provided below the internal threaded port (50), and the sampling bottle (81) is threadedly connected to the internal threaded port (50).

7. The closed sampling device for chemical production according to claim 1, characterized in that: A handwheel (30) is provided at the top of the threaded rod (23).

8. The closed sampling device for chemical production according to claim 1, characterized in that: The top of the slot (41) is provided with a sealing groove (42), and the inside of the sealing groove (42) is provided with a frustum groove (43). The top of the sealing ring (70) is provided with a frustum block (63), which is configured to cooperate with the frustum groove (43). The sealing ring (70) is provided with a locking block (71), which is configured to cooperate with the sealing groove (42).

9. The closed sampling device for chemical production according to claim 1, characterized in that: The bottom of the rotating rod (73) is provided with a rotating disk (80), and the rotating disk (80) is movably disposed with the inner cavity (72).

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