Sampling device for chemical production

Abstract

The invention discloses a sampling device for chemical production, the sampling device for chemical production comprises a communicating pipe and a sampling assembly, the communicating pipe is suitable for being installed on a reactor and communicated with the reactor so that reaction liquid in the reactor can flow into the communicating pipe, the sampling assembly comprises a sampling pipe, a storage tank and an extraction piece, the sampling pipe is communicated with the communicating pipe, and the storage tank is connected with the sampling pipe. The sampling pipe is detachably arranged below the communicating pipe so that reaction liquid in the communicating pipe can flow into the sampling pipe, the storage tank is detachably arranged below the sampling pipe so that the reaction liquid in the sampling pipe can flow into the storage tank, and the extraction part is arranged in the sampling pipe and can move relative to the sampling pipe in the length direction of the sampling pipe so that the extraction part can extract the reaction liquid in the communicating pipe. The sampling device for chemical production has the advantages of simple structure, high sampling efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of chemical sampling equipment technology, specifically to a sampling device for chemical production. Background Technology

[0002] In the field of chemical production, real-time sampling and analysis of liquid reactants in reactors is a core step in monitoring reaction progress, determining reaction conversion rate and product purity, and is crucial for ensuring product quality and production safety.

[0003] In related technologies, reactor sampling is not timely and the sampling efficiency is low. Summary of the Invention

[0004] This invention is based on the inventor's discoveries and understanding of the following facts and problems: In related technologies, CN208687027U, a sampling valve for chemical production, and CN220367026U, a hand-cranked plunger valve sampler, are both sampling devices used in chemical production. Both rely on manual opening to sample liquid reactants within the reactor, resulting in untimely sampling. Furthermore, the connection point between the sampling device and the reactor is fixed, preventing sampling of liquid reactants at different depths within the reactor. Additionally, the sampling volume is limited by the volume of the sampling container, leading to a small sample size per attempt. This invention aims to at least partially address one of the technical problems in related technologies.

[0005] Therefore, embodiments of the present invention propose a sampling device for chemical production that provides timely and efficient sampling.

[0006] A sampling device for chemical production according to an embodiment of the present invention includes: a connecting tube adapted to be installed on and connected to a reactor so that reaction liquid in the reactor flows into the connecting tube; and a sampling assembly including a sampling tube, a storage tank, and an extraction member, wherein the sampling tube is connected to the connecting tube so that reaction liquid in the connecting tube flows into the sampling tube, the storage tank is detachably disposed below the sampling tube so that reaction liquid in the sampling tube flows into the storage tank, and the extraction member is disposed in the sampling tube and movable relative to the sampling tube along the length direction of the sampling tube so that the extraction member extracts reaction liquid in the connecting tube.

[0007] The sampling device for chemical production of the present invention is equipped with a connecting pipe and a sampling component. The sampling device directly samples through the connecting pipe, saving operation time and improving sampling efficiency. After sampling, the operator can easily remove the storage tank from the sampling pipe for subsequent sample processing and analysis, which facilitates sample transportation and preservation and improves the continuity and efficiency of sampling.

[0008] In some embodiments, the connecting tube includes a first section, a second section, and a third section connected to each other. The first section and the second section are arranged opposite each other in a vertical direction. One end of the first section and one end of the second section are both connected to the reactor. The third section extends in a vertical direction and is connected to the other end of the first section and the other end of the second section, so that the reaction liquid in the reactor flows into the third section through the first section and the second section. The sampling tube is connected to the third section.

[0009] In some embodiments, there are multiple sampling components, which are spaced apart in the vertical direction, and the sampling tubes of the multiple sampling components are all connected to the connecting tube.

[0010] In some embodiments, there are multiple storage tanks, each of which is detachably connected to the sampling tube, and the multiple storage tanks are spaced apart along the axial direction of the sampling tube.

[0011] In some embodiments, the sampling assembly further includes a driving member disposed on the sampling tube and connected to the extraction member, so that the driving member drives the extraction member to move within the sampling tube.

[0012] In some embodiments, the driving component includes an electric push rod and a connecting rod. The electric push rod is disposed on the sampling tube, and the connecting rod includes a first rod, a second rod, and a third rod. The first rod and the second rod are spaced apart in the vertical direction and both the first rod and the second rod extend axially along the sampling tube. The third rod extends in the vertical direction, and its two ends are respectively connected to one end of the first rod and one end of the second rod. The other end of the first rod is connected to the electric push rod, and the other end of the second rod passes through the end of the sampling tube and is connected to the extraction component, so that the electric push rod drives the extraction component to move through the connecting rod.

[0013] In some embodiments, the sampling tube is provided with a sampling port that penetrates the sampling tube, and the storage tank is connected to the sampling tube through the sampling port. The sampling assembly further includes a sealing member, one end of which is disposed on the sampling tube, and the other end of which is movable relative to the sampling tube in a vertical direction between a first position and a second position. In the first position, the sealing member blocks the sampling port, and in the second position, the sealing member is separated from the sampling port.

[0014] In some embodiments, the sealing member includes: a sealing plate, one end of which is disposed on the outer peripheral surface of the sampling tube; and a vertical rod, which is disposed on the upper end surface of the sealing plate and located at the other end of the sealing plate, the upper end of which passes through the sampling tube and is located inside the sampling tube. In the second position, the extraction member pushes the vertical rod downward so that the sealing plate separates from the sampling port.

[0015] In some embodiments, the extraction element is a valve block, and the side of the valve block adjacent to the vertical rod is a driving surface, which extends from top to bottom and is inclined in a direction away from the vertical rod.

[0016] In some embodiments, the sampling assembly further includes a mounting cover disposed below the sampling tube, and the storage element is detachably disposed below the mounting cover via a threaded connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a sampling device for chemical production according to an embodiment of the present invention.

[0018] Figure 2 This is a front view of a sampling device for chemical production according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the sampling component of a chemical production sampling device according to an embodiment of the present invention.

[0020] Figure 4 This is an exploded view of the sampling component of a chemical production sampling device according to an embodiment of the present invention.

[0021] Figure 5 yes Figure 4 A magnified view of part A in the image.

[0022] Figure 6 This is a schematic diagram of the sampling tube of a chemical production sampling device according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the sealing component of a chemical production sampling device according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the drive component of a chemical production sampling device according to an embodiment of the present invention.

[0025] Figure 9 This is a cross-sectional view of the sampling tube of the chemical production sampling device according to an embodiment of the present invention.

[0026] Figure 10 yes Figure 9 A magnified view of part B in the image.

[0027] 100. Sampling devices for chemical production; 1. Connecting pipe; 11. First segment; 12. Second segment; 13. Third segment; 2. Sampling assembly; 21. Sampling tube; 211. Connecting frame; 212. Base end; 2121. Base plate; 2122. Threaded post; 2123. Nut; 213. Sealing plate; 2131. Plate; 2132. Sealing sleeve; 213. Sampling port; 214. Positioning guide hole; 215. First threaded hole; 216. Second threaded hole; 22. Storage tank; 23. Extraction component; 24. Drive component; 241. Electric push rod; 242. Connecting rod; 25. Sealing component; 251. Sealing plate; 252. Vertical rod; 26. Mounting cover. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following description, with reference to the accompanying drawings, describes a sampling device 100 for chemical production according to an embodiment of the present invention.

[0030] like Figures 1-10 As shown, the chemical production sampling device 100 according to an embodiment of the present invention includes a connecting tube 1 and a sampling component 2.

[0031] The connecting pipe 1 is adapted to be installed on and connected to the reactor so that the reaction liquid inside the reactor flows into the connecting pipe 1. Specifically, as shown in the example... Figure 1 and Figure 2 As shown, the connecting pipe 1 is fixed (e.g., the connecting pipe 1 is on the reactor, or the connecting pipe 1 is integrally formed with the reactor) on the reactor (e.g., a reaction vessel or reaction tank) and the connecting pipe 1 can be connected to the reactor so that the reaction liquid in the reactor flows into the connecting pipe 1.

[0032] Sampling assembly 2 includes a sampling tube 21, a storage tank 22, and an extraction component 23. The sampling tube 21 is connected to the connecting tube 1 so that the reaction liquid in the connecting tube 1 flows into the sampling tube 21. The storage tank 22 is detachably disposed below the sampling tube 21 so that the reaction liquid in the sampling tube 21 flows into the storage tank 22. The extraction component 23 is disposed inside the sampling tube 21 and relative to the sampling tube 21 along the length direction of the sampling tube 21 (e.g., ...). Figure 1 The component (as shown in the left-right direction) is movable so that the extraction component 23 can extract the reaction liquid from the connecting tube 1. Specifically, as shown in the figure... Figures 1-4As shown, the sampling tube 21 is a square tube extending in the left-right direction. The left end of the sampling tube 21 is fixedly connected to the connecting tube 1, while the right end of the sampling tube 21 is sealed by a sealing plate 213 to ensure a relatively sealed space inside the sampling tube 21. The storage tank 22 is detachably installed below the sampling tube 21 and remains in communication with it. The extraction component 23 is disposed inside the sampling tube 21 and can move freely in the left-right direction within the sampling tube 21. In actual operation, by controlling the movement of the extraction component 23 within the sampling tube 21, the reaction liquid in the connecting tube 1 can be extracted into the storage tank 22, thereby completing the sampling operation.

[0033] The sampling device 100 for chemical production of the present invention includes a connecting pipe 1 and a sampling component 2. The sampling device is connected to the reactor through the connecting pipe 1, allowing the sampling device to directly sample through the connecting pipe 1. Compared with sampling devices in related technologies, which require multiple valve opening and closing operations and pipe connections, the sampling component 2 simplifies the sampling process, saves operation time, and improves sampling efficiency. Furthermore, the sampling pipe 21, storage tank 22, and extraction component 23 allow the reaction liquid in the sampling pipe 21 to flow into the storage tank 22 through the extraction component 23. After sampling, the storage tank 22 can be detached from the sampling pipe 21 for convenient subsequent sample processing and analysis, improving the continuity and efficiency of sampling.

[0034] In some embodiments, the connecting pipe 1 includes a first segment 11, a second segment 12, and a third segment 13 connected to each other. The first segment 11 and the second segment 12 are arranged opposite each other in a vertical direction. One end of the first segment 11 and one end of the second segment 12 are both connected to the reactor. The third segment 13 extends in a vertical direction and is connected to the other end of the first segment 11 and the other end of the second segment 12, so that the reaction liquid in the reactor flows into the third segment 13 through the first segment 11 and the second segment 12. The sampling pipe 21 is connected to the third segment 13. Specifically, as shown... Figure 1 As shown, the first section 11 and the second section 12 are both horizontal pipes extending in the left-right direction, and the third section 13 is a vertical pipe extending in the up-down direction. The left end of the first section 11 and the left end of the second section 12 are both connected to the reactor, and the right end of the first section 11 and the right end of the second section 12 are respectively connected to the upper and lower ends of the third section 13, so that the reaction liquid in the reactor flows into the third section 13 through the first section 11 and into the reactor through the second section 12. The sampling tube 21 is set on the third section 13 and connected to the third section 13, so that the sampling tube 21 can draw the reaction liquid in the reactor through the third section 13.

[0035] In some embodiments, there are multiple sampling components 2, which are spaced apart in the vertical direction, and the sampling tubes 21 of the multiple sampling components 2 are all connected to the connecting tube 1. Specifically, as shown in the figure... Figure 1 and Figure 2As shown, multiple sampling components 2 are spaced apart along the vertical direction, and multiple sampling tubes 21 are all connected to the third segment 13. During the reaction, the reaction liquid at different depths may be at different stages of the reaction. For example, the reaction liquid near the bottom of the reactor may be reacting more fully, while the reaction liquid near the top may be just beginning to react or be at a shallow stage. By sampling at different depths using multiple sampling components 2, samples from different reaction stages can be obtained, allowing for analysis of the reaction rate and product formation at different stages. This helps to gain a deeper understanding of the reaction mechanism and optimize reaction conditions.

[0036] In some embodiments, there are multiple storage tanks 22, each detachably connected to the sampling tube 21, and the multiple storage tanks 22 are spaced apart along the axial direction of the sampling tube 21. Specifically, as shown... Figures 1-4 As shown, multiple storage tanks 22 are connected to the sampling tube 21 in the left-right direction, thus enabling parallel sample processing through multiple storage tanks. Operators can simultaneously retrieve samples from multiple storage tanks 22 for different analytical tests or experimental operations, greatly shortening analysis time and improving work efficiency.

[0037] In some embodiments, such as Figure 1 As shown, the sampling assembly 2 also includes a driving member 24, which is disposed on the sampling tube 21 and connected to the extraction member 23, so that the driving member 24 drives the extraction member 23 to move within the sampling tube 21. Thus, the driving member 24 provides driving force to the extraction member 23, and the extraction member 23 moves within the sampling tube 21 to extract the reaction liquid in the third tube.

[0038] In some embodiments, the driving member 24 includes an electric push rod 241 and a connecting rod 242. The electric push rod 241 is disposed on the sampling tube 21. The connecting rod 242 includes a first rod, a second rod, and a third rod. The first and second rods are spaced apart in the vertical direction and both extend axially along the sampling tube 21. The third rod extends in the vertical direction and its two ends are respectively connected to one end of the first rod and one end of the second rod. The other end of the first rod is connected to the electric push rod 241, and the other end of the second rod passes through the end of the sampling tube 21 and is connected to the extraction member 23, so that the electric push rod 241 drives the extraction member 23 to move through the connecting rod 242. Specifically, as shown... Figure 3 and Figure 4As shown, the electric push rod 241 is fixedly installed on the upper end face of the sampling tube 21. The electric push rod 241 can extend and retract in the left and right direction. The first rod and the second rod are both horizontal rods extending in the left and right direction and are spaced apart in the up and down direction. The third rod is a vertical rod 252 extending in the up and down direction. The left end of the first rod is connected to the electric push rod 241, so that the electric push rod 241 drives the first rod to move in the left and right direction. The right end of the second rod passes through the sealing plate 213 of the sampling tube 21 and is connected to the extraction component 23. The right ends of the first rod and the right ends of the second rod are respectively connected to the upper and lower ends of the third rod, so that the connecting rod 242 is roughly C-shaped. Thus, the electric push rod 241 drives the extraction component 23 to move in the left and right direction through the connecting rod 242.

[0039] In some embodiments, the sampling tube 21 is provided with a sampling port 213 penetrating the sampling tube 21. The storage tank 22 is connected to the sampling tube 21 through the sampling port 213. The sampling assembly 2 also includes a sealing member 25. One end of the sealing member 25 is disposed on the sampling tube 21, and the other end of the sealing member 25 is movable relative to the sampling tube 21 in a vertical direction between a first position and a second position. In the first position, the sealing member 25 seals the sampling port 213. In the second position, the sealing member 25 is separated from the sampling port 213. Specifically, as shown... Figure 4 and Figure 5 As shown, the lower end face of the sampling tube 21 is provided with a sampling port 213 that penetrates the sampling tube 21. The storage tank 22 is connected to the sampling tube 21 through the sampling port 213, so that the reaction liquid in the sampling tube 21 flows into the storage tank 22 through the sampling port 213. The left end of the sealing member 25 is located below the sampling tube 21, and the right end of the sealing member 25 can move up and down in the first and second directions. In the first position, the sealing member 25 is attached to the sampling tube 21 to block the sampling port 213. In the second position, the sealing member 25 moves downward and separates from the sampling tube 21, and the sampling port 213 is opened so that the sampling tube 21 is connected to the storage tank 22, so that the reaction liquid flows into the storage tank 22 through the sampling port 213.

[0040] In some embodiments, the sealing member 25 includes a sealing plate 251 and a vertical rod 252.

[0041] One end of the sealing plate 251 is located on the outer circumferential surface of the sampling tube 21, and the vertical rod 252 is located on the upper end face of the sealing plate 251 and at the other end of the sealing plate 251. The upper end of the vertical rod 252 passes through the sampling tube 21 and is located inside the sampling tube 21. In the second position, the extraction member 23 pushes the vertical rod 252 downward to separate the sealing plate 251 from the sampling port 213. Specifically, as shown... Figure 7As shown, the sealing plate 251 can be a rubber plate. The right end of the sealing plate 251 is fixedly installed on the sampling tube 21. The vertical rod 252 is set at the upper end of the sealing plate 251 and located at the right end of the sealing plate 251. The lower end face of the sampling tube 21 is provided with a through hole that passes through the sampling tube 21 in the vertical direction. In the first position, the vertical rod 252 passes through the through hole and is located inside the sampling tube 21. In the second position, the extraction component 23 drives the vertical rod 252 to move downward. The vertical rod 252 pushes the sealing plate 251 downward, so that the sealing plate 251 is separated from the sampling port 213.

[0042] In some embodiments, the extraction member 23 is a valve block, and the side of the valve block adjacent to the vertical rod 252 is a driving surface. The driving surface extends from top to bottom and is inclined in a direction away from the vertical rod 252. Specifically, as Figure 8 and Figure 9 As shown, the right end face of the valve block extends downward from top to bottom and tilts to the left. When the extraction part 23 moves from left to right, the vertical rod 252 first contacts the upper part of the driving surface. As the valve block continues to move, the vertical rod 252 gradually slides downward along the tilted driving surface, making the force transmission smoother and reducing the energy loss caused by uneven contact or jamming, thereby improving the driving efficiency and facilitating the downward movement of the vertical rod 252.

[0043] In some embodiments, the sampling assembly 2 further includes a mounting cover 26 disposed below the sampling tube 21, and a storage component is detachably disposed below the mounting cover 26 via a threaded connection. Specifically, as Figure 10 As shown, the mounting cover 26 is fixed to the lower end of the sampling tube 21. The inner circumferential surface of the lower end of the mounting base is provided with an internal thread, and the outer circumferential surface of the upper end of the storage tank 22 is provided with an external thread. Through the threaded engagement, the storage tank 22 can be detachably installed under the mounting cover 26.

[0044] The following is based on the appendix Figures 1-10 The following is a detailed description of the chemical production sampling device 100 according to an embodiment of the present invention: The connecting pipe 1 is used to guide the liquid reactants in the reactor. In use, it is connected to the reactor through the left end of the first section 11 and the left end of the second section 12, and two sets of sampling devices are installed on the third section 13. The two sets of sampling devices are installed at different heights, one at the top and one at the bottom, so that the reaction liquid at different depths in the reactor can be sampled during sampling. Compared with traditional sampling equipment, it can obtain reaction liquid at different depths in the reactor as needed.

[0045] Storage tank 22 is detachably sealed and installed on the lower end face of connecting pipe 1 and is connected to connecting pipe 1. A mounting cover 26 is fixed at the lower end of connecting pipe 1. The lower end of mounting cover 26 is provided with internal thread, and storage tank 22 is detachably threaded and installed on the internal thread. The driving component 24 is installed on the upper end face of the connecting pipe 1, and the extraction component 23 of the driving component 24 is movably disposed inside the connecting pipe 1. The sealing component 25 is installed at the connection between the connecting pipe 1 and the storage tank 22 to seal the connection. The cover 26 covers the sealing component 25. The extraction component 23 of the driving component 24 moves to the connection and presses down on one end of the sealing component 25, opening the connection and allowing the liquid reactant to flow into the storage tank 22.

[0046] In use, the driving component 24 is installed on the upper end face of the connecting pipe 1, and the extraction component 23 is movably set inside the connecting pipe 1. A sealing component 25 is set at the connection between the connecting pipe 1 and the storage tank 22. When it is necessary to sample the reaction liquid in the reactor, the extraction component 23 of the driving component 24 moves away from the reactor in the connecting pipe 1. The extraction component 23 moves to the sealing component 25 and presses down on the sealing component 25, so that the connection is opened and the reaction liquid in the reactor flows into the storage tank 22. Compared with traditional sampling equipment, no manual opening is required, and sampling is more timely.

[0047] By continuously installing storage tanks 22 on the connecting pipe 1, when sampling is performed, once the storage tank 22 at the front end of the sampling pipe 21 is full of reaction liquid, the electric push rod 241 continues to pull the extraction component 23 to move away from the reactor within the sampling pipe 21. This allows the extraction component 23 to move to the connection point between the storage tank 22 and the connecting pipe 1, where the sealing component 25 is pressed down, allowing the reaction liquid to continue flowing into the storage tank 22 for preservation. Compared with traditional sampling equipment, this chemical production sampling device 100 can store more reaction liquid in a single sampling, providing more materials for subsequent sampling and analysis.

[0048] Reference Figures 5-6 As shown, sampling tube 21 has a square tube structure; Connecting frame 211 is fixedly installed at both ends of sampling tube 21; The base end 212 is fixedly welded to both ends of the upper end face of the sampling tube 21 and is used to connect and install the driving component 24.

[0049] Sampling tube 21 includes: Sampling port 213 is provided at both ends of the lower end face of sampling tube 21 for communication with storage tank 22; positioning guide hole 214 is provided at the lower end face of sampling tube 21 and is located on one side of sampling port 213. The first threaded hole 215 is opened on the lower end face of the sampling tube 21 and is used to make threaded connection with the bolt of the mounting cover 26. The second threaded hole 216 is located on the lower end face of the sampling tube 21 and is used to connect and install the sealing component 25.

[0050] The base end 212 includes: a substrate 2121, which is fixedly welded to the upper end face of the sampling tube 21; Threaded post 2122 is welded to both ends of the upper surface of substrate 2121; Nut 2123, the thread of nut 2123 is installed on threaded post 2122.

[0051] Reference Figure 8-9 As shown, the drive unit 24 includes: Electric push rod 241 is installed on the base end 212 provided at the upper end of sampling tube 21; The sealing plate 213 is detachably threaded and installed at one end of the sampling tube 21; Extraction component 23 is connected and installed on the rod end of electric push rod 241, and is movably disposed inside sampling tube 21.

[0052] The electric push rod 241 is fixed on the sampling tube 21.

[0053] Sealing plate 213 includes: Plate 2131 is detachably connected to the connecting frame 211 at one end of the sampling tube 21 by bolts; The sealing sleeve 2132 is fixedly installed in the middle of the plate 2131, and the connecting rod 242 is inserted into the sleeve of the sealing sleeve 2132.

[0054] The lower end face of the extractor 23 is configured with two ends of abutting inclined surface 331, and the extractor 23 is a component made of corrosion-resistant rubber material.

[0055] The sealing component 25 includes: The sealing plate 251 is a circular sealing valve plate. The upper end face of the circular sealing valve plate is provided with a rubber sealing gasket for sealing the sampling port 213. The diameter of the circular sealing valve plate is larger than the diameter of the sampling port 213. The vertical rod 252 is fixedly installed at the upper end of the sealing plate 251, and extends into the sampling tube 21 through the through hole.

[0056] During sampling, the telescopic end of the electric push rod 241 extends and pulls the extraction component 23 through the connecting rod 242, causing the extraction component 23 to move away from the reactor within the sampling tube 21. When the extraction component 23 moves to the storage tank 22 at the front end, the driving surface of the extraction component 23 presses down on the vertical rod 252 extending from the through hole into the sampling tube 21, forcing the sealing plate 251 to press down under the downward pressure. At this time, the sealing plate 251, which is tightly fitted with the sampling port 213, disengages from the sampling port 213, opening the sampling port 213. The reaction liquid in the reactor flows into the storage tank 22 through the sampling port 213. After the storage tank 22 is full of reaction liquid, the electric push rod 241... 41. Continue to pull the extraction component 23 to move away from the reactor end in the sampling tube 21, so that the extraction component 23 moves to the connection between the storage tank 22 and the connecting pipe 1, and press down the sealing component 25 at that point, opening the sampling port 213 at the rear. As the extraction component 23 continues to move backward, the reaction liquid can continue to flow into the storage tank 22 at that point for storage. Compared with traditional sampling equipment, this chemical production sampling device 100 can store more reaction liquid in a single sampling. When the extraction component 23 is released from the pressure of the sealing component 25 at the front, the circular sealing valve plate resets under the elastic action to tightly fit the sampling port 213, sealing the sampling port 213 at the front.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A sampling device for chemical production, characterized in that, include: A connecting pipe, the connecting pipe being adapted to be installed on and connected to the reactor so that the reaction liquid in the reactor flows into the connecting pipe; A sampling assembly includes a sampling tube, a storage tank, and an extraction component. The sampling tube is connected to the connecting tube so that the reaction liquid in the connecting tube flows into the sampling tube. The storage tank is detachably disposed below the sampling tube so that the reaction liquid in the sampling tube flows into the storage tank. The extraction component is disposed inside the sampling tube and is movable relative to the sampling tube along the length of the sampling tube so that the extraction component extracts the reaction liquid in the connecting tube.

2. The sampling device for chemical production according to claim 1, characterized in that, The connecting tube includes a first section, a second section, and a third section connected to each other. The first section and the second section are arranged opposite each other in a vertical direction. One end of the first section and one end of the second section are both connected to the reactor. The third section extends in a vertical direction and is connected to the other end of the first section and the other end of the second section, so that the reaction liquid in the reactor flows into the third section through the first section and the second section. The sampling tube is connected to the third section.

3. The sampling device for chemical production according to claim 1, characterized in that, The sampling components are multiple, and the multiple sampling components are arranged at intervals in the vertical direction. The sampling tubes of the multiple sampling components are all connected to the connecting tube.

4. The sampling device for chemical production according to claim 1, characterized in that, There are multiple storage tanks, each of which is detachably connected to the sampling tube, and the multiple storage tanks are spaced apart along the axial direction of the sampling tube.

5. The sampling device for chemical production according to claim 1, characterized in that, The sampling assembly further includes a driving member, which is disposed on the sampling tube and connected to the extraction member, so that the driving member drives the extraction member to move within the sampling tube.

6. The sampling device for chemical production according to claim 5, characterized in that, The driving component includes an electric push rod and a connecting rod, with the electric push rod mounted on the sampling tube. The connecting rod includes a first rod, a second rod, and a third rod. The first rod and the second rod are spaced apart in the vertical direction and both extend along the axial direction of the sampling tube. The third rod extends in the vertical direction and its two ends are respectively connected to one end of the first rod and one end of the second rod. The other end of the first rod is connected to the electric push rod, and the other end of the second rod passes through the end of the sampling tube and is connected to the extraction component, so that the electric push rod drives the extraction component to move through the connecting rod.

7. The sampling device for chemical production according to claim 1, characterized in that, The sampling tube is provided with a sampling port that penetrates the sampling tube. The storage tank is connected to the sampling tube through the sampling port. The sampling assembly also includes a sealing member. One end of the sealing member is disposed on the sampling tube. The other end of the sealing member is movable relative to the sampling tube in the vertical direction between a first position and a second position. In the first position, the sealing member blocks the sampling port. In the second position, the sealing member is separated from the sampling port.

8. The sampling device for chemical production according to claim 7, characterized in that, The sealing component includes: A blocking plate, one end of which is disposed on the outer circumferential surface of the sampling tube; A vertical rod is provided on the upper end face of the sealing plate and located at the other end of the sealing plate. The upper end of the vertical rod passes through the sampling tube and is located inside the sampling tube. In the second position, the extraction member pushes the vertical rod downward so that the sealing plate separates from the sampling port.

9. The sampling device for chemical production according to claim 7, characterized in that, The extraction component is a valve block, and the side of the valve block adjacent to the vertical rod is a driving surface. The driving surface extends from top to bottom and is inclined in a direction away from the vertical rod.

10. The sampling device for chemical production according to claim 1, characterized in that, The sampling assembly also includes a mounting cover located below the sampling tube, and the storage component is detachably located below the mounting cover via a threaded connection.

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