Safe and environment-friendly sampling equipment for chemical production

Abstract

The invention discloses safe and environment-friendly sampling equipment for chemical production, and relates to the technical field of material sampling, the safe and environment-friendly sampling equipment comprises a barrel, a needle head is fixedly connected to the bottom of the barrel, the inner wall of the barrel is fixedly connected with a shunt pipe, a separation device and an extraction device, and the inner wall of the separation device is slidably connected with the outer wall of the barrel; the outer wall of the extraction device is in sliding connection with the inner wall of the barrel body, the extraction device comprises a piston assembly, the outer wall of the piston assembly is in sliding connection with the inner wall of the barrel body, the extraction device further comprises a limiting assembly, the piston assembly is arranged, the function of washing and cleaning the interior of the barrel body and the flow dividing pipe can be conveniently achieved, and the operation is convenient and fast through simple operation. The inner wall of the cylinder body can be flushed by the cleaning liquid in all directions through the structural cooperation of the plug rod, the elastic piece, the piston body, the jet flow groove and the backflow groove; and the pull ring is inserted back again, the plug rod is pushed, and the cylinder can be scraped and cleaned by means of the piston body.

Description

Technical Field

[0001] The present invention relates to the technical field of material sampling, and particularly to a safe and environmentally friendly sampling device for chemical production. Background Art

[0002] At present, with the booming development of the modern chemical industry, the chemical production process has become increasingly complex and refined. Precise control of each link has become the key to ensuring product quality, achieving efficient production, and maintaining a safe production environment. As an indispensable part of it, the importance of the sampling link is self-evident. However, traditional chemical sampling devices and methods have gradually revealed many problems that need to be solved urgently.

[0003] Traditional sampling devices often lack self-cleaning functions. After a sampling is completed, chemical materials are extremely likely to remain in components such as the inner part of the cylinder body and the shunt pipe. Over time, these residues will not only breed dirt, corrode the equipment, and shorten the service life of the equipment, but may also be mixed into new samples during the next sampling, causing cross-contamination, seriously interfering with the accuracy of subsequent precise experimental analyses such as component analysis and purity detection, and posing a huge challenge to the quality control of chemical products. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a safe and environmentally friendly sampling device for chemical production, including: a cylinder body, the bottom of the cylinder body is fixedly connected with a needle head, the inner wall of the cylinder body is fixedly connected with a shunt pipe, and the shunt pipe is annularly arranged along the central axis of the cylinder body; a separation device, the inner wall of the separation device is slidably connected with the outer wall of the cylinder body, the separation device includes a filtering component, the top of the filtering component is press-fitted and sealed with the bottom of the cylinder body, the filtering component is used to block solid materials in chemical substances, the outer wall of the filtering component is fixedly connected with a classification component, the classification component is used to present different colors by contacting chemical substances; an extraction device, the outer wall of the extraction device is slidably connected with the inner wall of the cylinder body, the extraction device includes a piston component, the outer wall of the piston component is slidably connected with the inner wall of the cylinder body, the piston component is used to change the air pressure inside the cylinder body by sliding, the extraction device further includes a limiting component, the outer wall of the bottom of the limiting component is fixedly connected with the top of the shunt pipe, the limiting component is used to fix the sampling container by clamping; the piston component includes a plug rod, the inner wall of the plug rod is fixedly connected with a spring piece through a fixing spring strip, the outer wall of the fixing spring strip is fixedly connected with the inner wall of the plug rod, the material of the fixing spring strip is an elastic material, the spring pieces are linearly arranged along the central axis of the plug rod, a pull ring is inserted at the top of the plug rod, and a piston body is fixedly connected to the bottom of the plug rod.

[0005] Preferably, a fixing frame is fixedly connected to the outer wall of the cylinder body, and the fixing frames are annularly arrayed along the central axis of the cylinder body. A baffle is fixedly connected to the inner wall of the needle head through a fixing elastic strip. A magnetic base is fixedly connected to the outer wall of the cylinder body, and the magnetic bases are annularly arrayed along the central axis of the cylinder body.

[0006] Preferably, the outer wall of the plug rod is slidably connected to the inner wall of the top of the cylinder body. A slot and a limiting slot corresponding to the pull ring are opened in the inner wall of the top of the plug rod. The inner wall of the cylinder body is slidably connected to the outer wall of the piston body through a sealing ring, and the outer wall of the sealing ring is sleeved on the outer wall of the piston body. The sealing ring is made of an elastic material. A jet flow groove is opened in the wall of the piston body, and the jet flow grooves are annularly arrayed along the central axis of the piston body. A return flow groove is opened in the wall of the piston body, and the return flow grooves are annularly arrayed along the central axis of the piston body. A flow blocking piece is fixedly connected to the inner wall of the bottom of the piston body through a fixing elastic strip.

[0007] Preferably, the limiting assembly includes a sampling tube. An elastic rod is slidably connected to the outer wall of the sampling tube. The elastic rod is made of an elastic material, and the elastic rods are annularly arrayed along the central axis of the sampling tube. A fixing seat is fixedly connected to the bottom of the elastic rod. A thimble is fixedly connected to the inner wall of the fixing seat.

[0008] Preferably, the outer wall of the thimble is inserted into the inner wall of the bottom of the sampling tube. The bottom of the thimble is fixedly connected to the top of the shunt tube. A connecting rope is fixedly connected to the outer wall of the elastic rod. The connecting rope is made of an elastic material. A flow blocking piece is fixedly connected to the inner wall of the top of the thimble through a fixing elastic strip.

[0009] Preferably, the filtering assembly includes an installation cylinder. A filter cover is clamped to the bottom of the installation cylinder through a clamping block, and the outer wall of the clamping block is fixedly connected to the outer wall of the filter cover. A sealing gasket is sleeved on the inner wall of the installation cylinder. An inner filter cover is fixedly connected to the inner wall of the bottom of the installation cylinder. A through groove is opened in the wall of the inner filter cover.

[0010] Preferably, the outer wall of the clamping block is clamped to the inner wall of the installation cylinder. A magnetic attraction block is fixedly connected to the outer wall of the installation cylinder. The magnetic attraction block is attracted to the magnetic base, and the magnetic attraction blocks are annularly arrayed along the central axis of the installation cylinder. A filter groove is opened in the wall of the filter cover, and the filter grooves are annularly arrayed along the central axis of the filter cover. The size of the filter groove is larger than that of the through groove.

[0011] Preferably, the inner wall of the installation cylinder is slidably connected to the outer wall of the cylinder body, the inner wall of the installation cylinder is slidably connected to the outer wall of the shunt pipe, the outer wall of the sealing gasket is press-fitted and sealed with the bottom of the cylinder body, the classification assembly includes a fixed cover, the fixed covers are annularly arranged along the central axis of the cylinder body, litmus papers are inserted into the inner walls of the fixed covers, observation windows are opened in the walls of the fixed covers, the outer walls of the fixed covers are fixedly connected to the outer walls of the installation cylinders, and through grooves are opened at the bottoms of the fixed covers to facilitate materials to enter the fixed covers.

[0012] The beneficial effects of the present invention are as follows: 1. By setting the piston assembly, the present invention can conveniently realize the flushing and cleaning functions of the inside of the cylinder body and the shunt pipe. Through simple operations such as rotating and pulling out the pull ring and injecting cleaning liquid, and by the structural cooperation of the plug rod, elastic sheet, piston body, jet flow grooves and return flow grooves, the cleaning liquid can flush the inner wall of the cylinder body in all directions; by inserting the pull ring back again and pushing the plug rod, the cylinder body can be scraped and cleaned by means of the piston body, and the cleaning liquid at the bottom can be pressed out through the shunt pipe to further clean the shunt pipe. The whole self-cleaning process is simple in steps and remarkable in effect, without the need for additional complex cleaning tools, can timely remove residual materials, keep the equipment clean and hygienic, avoid cross-contamination of the next sampling caused by material residues, extend the service life of the equipment, and reduce the maintenance cost.

[0013] 2. By setting the classification assembly, the fixed covers of the classification assembly are annularly arranged around the cylinder body, and litmus papers are inserted inside. The litmus papers can quickly produce a sensitive color reaction with acidic or alkaline components in chemical materials. Operators can directly understand the acid-base characteristics of the materials in real time through the observation windows on the fixed covers without the aid of complex detection equipment, timely obtain key information, provide a strong basis for the subsequent targeted treatment of samples, selection of appropriate analysis methods and formulation of process adjustment strategies, shorten the decision-making time, and accelerate the progress of the chemical production process.

[0014] 3. By setting the filtering assembly, a double-filtering guarantee system is constructed. The filter cover is provided with adapted filter grooves according to the particle sizes of common impurities in chemical materials and can intercept larger solid impurities; the inner filter cover, with its fine filter screen structure, secondly captures fine impurity particles. The two work together to prevent solid materials from entering the subsequent pipelines, effectively ensuring that the sampled samples are pure and free of impurities, providing a reliable sample basis for subsequent accurate experimental analyses such as component analysis and purity detection, avoiding analysis result deviations caused by impurity interference, and improving the accuracy of chemical product quality control.

[0015] 4. The present invention is provided with a limiting component, which is ingeniously designed. The elastic rods arranged in an annular array on the outer wall of the sampling tube utilize their own elastic characteristics to automatically expand when accessing the sampling container to adapt to and fix the container. The connecting ropes reasonably limit the expansion amplitude of the elastic rods to ensure a stable connection. After the sampling is completed, the elastic rods can automatically reset. The operation is simple and intuitive, further simplifying the sampling process and reducing the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the present invention; Figure 2 is the sectional view of the present invention; Figure 3 is the structural schematic diagram of the needle of the present invention; Figure 4 is the exploded structural schematic diagram of the piston assembly of the present invention; Figure 5 is the structural schematic diagram of part A of the present invention; Figure 6 is the exploded structural schematic diagram of the limiting component of the present invention; Figure 7 is the exploded structural schematic diagram of the filtering component of the present invention; Figure 8 is the structural schematic diagram of the classification component of the present invention.

[0017] In the figures: 1, cylinder body; 2, separation device; 3, extraction device; 4, piston assembly; 5, limiting component; 6, filtering component; 7, classification component; 8, needle; 9, magnetic seat; 10, fixing bracket; 11, shunt pipe; 12, baffle; 41, pull ring; 42, plug rod; 43, elastic sheet; 44, piston body; 45, jet groove; 46, return groove; 47, sealing ring; 48, flow blocking sheet; 51, sampling tube; 52, elastic rod; 53, connecting rope; 55, fixing seat; 56, thimble; 57, flow blocking piece; 61, installation cylinder; 62, magnetic attraction block; 63, sealing gasket; 64, filter cover; 65, clamping block; 66, inner filter cover; 67, filter groove; 71, fixing cover; 72, observation window; 73, acid-base test paper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes. Embodiment

[0019] As shown in Figures 1 - 8 the figure, the present invention provides a technical solution: a safe and environmentally friendly sampling device for chemical production, comprising: a cylinder body 1, a needle 8 is fixedly connected to the bottom of the cylinder body 1, a shunt pipe 11 is fixedly connected to the inner wall of the cylinder body 1, and the shunt pipe 11 is annularly arranged along the central axis of the cylinder body 1; a separation device 2, the inner wall of the separation device 2 is slidably connected to the outer wall of the cylinder body 1, the separation device 2 comprises a filtering component 6, the top of the filtering component 6 is press-fitted and sealed with the bottom of the cylinder body 1, the filtering component 6 is used to block solid materials in chemical substances, a classification component 7 is fixedly connected to the outer wall of the filtering component 6, and the classification component 7 is used to present different colors by contacting chemical substances; an extraction device 3, the outer wall of the extraction device 3 is slidably connected to the inner wall of the cylinder body 1, the extraction device 3 comprises a piston component 4, the outer wall of the piston component 4 is slidably connected to the inner wall of the cylinder body 1, the piston component 4 is used to change the air pressure inside the cylinder body 1 by sliding, the extraction device 3 further comprises a limiting component 5, the outer wall of the bottom of the limiting component 5 is fixedly connected to the top of the shunt pipe 11, and the limiting component 5 is used to fix a sampling container by clamping; the piston component 4 comprises a plug rod 42, a spring piece 43 is fixedly connected to the inner wall of the plug rod 42 through a fixing spring strip, the spring pieces 43 are linearly arranged along the central axis of the plug rod 42, a pull ring 41 is inserted into the top of the plug rod 42, the bottom of the plug rod 42 is fixedly connected to a piston body 44, and by pushing the plug rod 42 downward, the inner wall of the cylinder body 1 can be scraped and cleaned again by the piston body 44.

[0020] A fixing frame 10 is fixedly connected to the outer wall of the cylinder body 1, and the fixing frame 10 is annularly arranged along the central axis of the cylinder body 1, and the fixing frame 10 is used to support a fixing seat 55. A retaining piece 12 is fixedly connected to the inner wall of the needle 8 through a fixing spring strip. A magnetic seat 9 is fixedly connected to the outer wall of the cylinder body 1, and the magnetic seat 9 is annularly arranged along the central axis of the cylinder body 1. The outer wall of the plug rod 42 is slidably connected to the inner wall of the top of the cylinder body 1. The inner wall of the cylinder body 1 is slidably connected to the outer wall of the piston body 44 through a sealing ring 47, and the outer wall of the sealing ring 47 is sleeved on the outer wall of the piston body 44. A jet flow groove 45 is formed in the wall of the piston body 44, and the jet flow groove 45 is annularly arranged along the central axis of the piston body 44. A return flow groove 46 is formed in the wall of the piston body 44, and the return flow groove 46 is annularly arranged along the central axis of the piston body 44. A flow blocking piece 48 is fixedly connected to the inner wall of the bottom of the piston body 44 through a fixing spring strip. Rotate the pull ring 41 and pull out the pull ring 41 from the plug rod 42, then inject cleaning liquid from the top of the plug rod 42, so that the cleaning liquid flows through the spring pieces 43 and enters the inside of the piston body 44, and sprays out from the jet flow grooves 45 above and below the piston body 44, so as to wash the inner wall of the cylinder body 1, and the cleaning liquid sprayed out from the top of the piston will flow to the flow blocking piece 48 through the return flow groove 46.

[0021] The limit component 5 includes a sampling tube 51. A spring rod 52 is slidably connected to the outer wall of the sampling tube 51, and the spring rods 52 are annularly arranged along the central axis of the sampling tube 51. A fixed seat 55 is fixedly connected to the bottom of the spring rod 52. A thimble 56 is fixedly connected to the inner wall of the fixed seat 55. The outer wall of the thimble 56 is inserted into the inner wall of the bottom of the sampling tube 51. The bottom of the thimble 56 is fixedly connected to the top of the shunt pipe 11. A connecting rope 53 is fixedly connected to the outer wall of the spring rod 52. A choke plate 57 is fixedly connected to the inner wall of the top of the thimble 56 through a fixed spring strip. When the sampling tube 51 is inserted between the spring rods 52, the outer wall of the sampling tube 51 will exert an outward pressure on the spring rod 52, and the spring rod 52 expands under the force. The connecting rope 53 is used to limit the expansion of the spring rod 52. Just wait until the thimble 56 is inserted into the sampling tube 51. At this time, under the action of the pressure difference created by the extraction device 3, the chemical material can smoothly flow into the sampling container through the shunt pipe 11. During this process, the elastic support of the spring rod 52 ensures a tight fit with the sampling tube 51, and there will be no shaking, falling off and other situations, ensuring the stable inflow of the material.

[0022] The filtering component 6 includes an installation cylinder 61. A filter cover 64 is clamped to the bottom of the installation cylinder 61 through a clamping block 65, and the outer wall of the clamping block 65 is fixedly connected to the outer wall of the filter cover 64. A sealing gasket 63 is sleeved on the inner wall of the installation cylinder 61. An inner filter cover 66 is fixedly connected to the inner wall of the bottom of the installation cylinder 61. The outer wall of the clamping block 65 is clamped to the inner wall of the installation cylinder 61. A magnetic attraction block 62 is fixedly connected to the outer wall of the installation cylinder 61, and the magnetic attraction blocks 62 are annularly arranged along the central axis of the installation cylinder 61. Filter grooves 67 are formed in the wall of the filter cover 64, and the filter grooves 67 are annularly arranged along the central axis of the filter cover 64. The inner wall of the installation cylinder 61 is slidably connected to the outer wall of the cylinder body 1. The inner wall of the installation cylinder 61 is slidably connected to the outer wall of the shunt pipe 11. The outer wall of the sealing gasket 63 is press-fitted and sealed with the bottom of the cylinder body 1. The installation cylinder 61 firmly clamps the filter cover 64 by means of the clamping block 65, and the two cooperate closely to build the first barrier. The filter grooves 67 provided on the wall of the filter cover 64 according to the particle size of common solid impurities in the chemical material select an appropriate pore size specification, and can achieve a good interception effect on larger particle solid impurities. At the same time, an inner filter cover 66 is also sleeved inside the installation cylinder 61. The inner filter cover 66 captures those fine solid impurity particles again with a relatively fine filter screen structure, thereby building a double filtering guarantee system to prevent solid materials from entering the subsequent pipeline along with the chemical material as much as possible. When the filter cover 64 needs to be replaced, just release the restriction of the clamping block 65 on the filter cover 64, and different pore size specifications can be replaced.

[0023] The classification component 7 includes a fixed cover 71, which is annularly arranged along the central axis of the cylinder body 1. An acid-base test paper 73 is inserted into the inner wall of the fixed cover 71. An observation window 72 is opened in the wall of the fixed cover 71. The outer wall of the fixed cover 71 is fixedly connected to the outer wall of the installation cylinder 61. According to the different acid-base properties of the material, the acid-base test paper 73 will quickly show different color changes. The operator can directly and timely understand the acid-base characteristics of the material through the observation window 72 opened on the surface of the fixed cover 71 without the help of complex detection equipment.

[0024] Working principle: In the complex process of chemical production, the sampling link is of great significance for ensuring product quality, facilitating process optimization, and maintaining a safe production environment. The safe and environmentally friendly sampling equipment for chemical production involved in the present invention, with its reasonable structural layout and the cooperation of each component, can achieve a safe and relatively accurate sampling process of chemical materials.

[0025] First, look at the cylinder body 1. As the core structure of the entire sampling equipment, it provides a stable support for many internal components. The bottom of the cylinder body 1 is firmly connected to the needle head 8. In this way, the equipment can directly touch the storage container or reaction system where the chemical material is located and smoothly open the channel for the material to enter.

[0026] The separation device 2 undertakes the crucial task of impurity filtration throughout the sampling process. Among them, the installation cylinder 61 of the filtration component 6 is slidably connected to the outer wall of the cylinder body 1. This design brings a lot of convenience to the operator for installing, disassembling, and daily maintaining the filtration component 6. The bottom of the installation cylinder 61 firmly holds the filter cover 64 by means of a clamping block 65. The two cooperate closely to build the first barrier. The filter slots 67 set on the wall of the filter cover 64 are selected with an appropriate pore size specification according to the size of common solid impurity particles in chemical materials, and can achieve a good interception effect on larger solid impurity particles. At the same time, an inner filter cover 66 is sleeved inside the installation cylinder 61. The inner filter cover 66, with its relatively fine filter screen structure, captures those fine solid impurity particles for a second time, thus building a double filtration guarantee system to prevent solid materials from entering the subsequent pipeline along with chemical materials as much as possible, effectively ensuring the purity of the sampled sample, and avoiding interference from solid impurities to a series of analysis and detection work such as subsequent component analysis and purity detection. The magnetic attraction blocks 62 surrounding the outer wall of the installation cylinder 61 correspond to the magnetic seats 9 on the cylinder body 1. When the filtration component 6 is installed in place, under the magnetic force of the magnetic seat 9, the magnetic attraction blocks 62 will fit the cylinder body 1, so that the filtration component 6 can maintain a relatively stable position state during operation and is not prone to loosening, displacement and other conditions. The sealing gasket 63 is placed at the joint between the inner wall of the installation cylinder 61 and the bottom of the cylinder body 1. During the operation of the equipment, its soft and elastic material characteristics can fill the possible tiny gaps between the two, building a reliable defense line to prevent the risk of chemical material leakage and maintain the safety and hygiene of the sampling environment.

[0027] The classification component 7, as an important part to help the operator quickly understand the properties of the material, the fixed covers 71 are distributed in a circular array around the cylinder body 1. The acid-base test papers 73 inserted inside the fixed covers 71 are made of special chemical materials that can produce sensitive color reactions with acidic or alkaline components in chemical materials. When the chemical material contacts the acid-base test papers 73, according to the different acid-base properties contained in the material, the acid-base test papers 73 will quickly show different color changes. The operator can directly understand the acid-base characteristics of the material in a timely manner through the observation windows 72 opened on the panel of the fixed covers 71 without the aid of complex detection equipment. This information provides a very valuable reference basis for the subsequent targeted treatment of the sample, selection of appropriate analysis methods, and formulation of corresponding process adjustment strategies, improving the work efficiency.

[0028] The extraction device 3 dominates the process of sample aspiration and transfer and is the power core of the sampling operation. The piston assembly 4 is in a key position. The piston rod 42 is slidably connected to the inner wall of the cylinder body 1, and the cooperation precision between the two has been adjusted to ensure that the piston rod 42 can move up and down smoothly inside the cylinder body 1 without air pressure leakage due to excessive gaps.

[0029] After the sampling of chemical samples is completed, the inside of the cylinder body 1 can be rinsed through the piston assembly 4, so as to rinse the residues in the cylinder body 1 and the shunt pipe 11. Before rinsing the cylinder body 1, it is necessary to ensure that the sampling work is completed. Then rotate the pull ring 41 and pull out the pull ring 41 from the plug rod 42. Subsequently, inject the cleaning liquid from the top of the plug rod 42, so that the cleaning liquid flows through the elastic piece 43 into the inside of the piston body 44 and sprays out from the spray grooves 45 above and below the piston body 44, so as to rinse the inner wall of the cylinder body 1. The cleaning liquid sprayed out from the top of the piston will flow to the baffle 48 through the return groove 46. Since the baffle 48 only blocks the air and liquid at the bottom of the piston from entering the piston body 44, the cleaning liquid flowing to the baffle 48 will flow through the baffle 48 to the bottom of the piston and collect at the bottom of the cylinder body 1. Then insert the pull ring 41 back to the top of the plug rod 42, and then push the plug rod 42 downward, so as to scrape and clean the inner wall of the cylinder body 1 again through the piston body 44, and simultaneously press out the cleaning liquid at the bottom of the cylinder body 1 through the shunt pipe 11, so as to further clean the shunt pipe 11.

[0030] The limit assembly 5 provides a strong guarantee for the stable fixation of the sampling container. The sampling pipe 51 is the main structure. Under normal conditions, the elastic rods 52 arranged in an annular array on its outer wall will contract inward due to their own elastic characteristics, forming a relatively small opening. When it is necessary to connect the sampling container, insert the sampling pipe 51 between the elastic rods 52. The outer wall of the sampling pipe 51 will exert an outward pressure on the elastic rods 52, and the elastic rods 52 will expand under the force. The connecting rope 53 is used to limit the expansion of the elastic rods 52. Just insert the thimble 56 into the inside of the sampling pipe 51. At this time, under the action of the pressure difference created by the extraction device 3, the chemical material can smoothly flow into the sampling container through the shunt pipe 11. During this process, the elastic support of the elastic rods 52 ensures a tight fit with the sampling pipe 51, and there will be no shaking, falling off and other situations, ensuring the stable inflow of the material. After the sampling is completed, take out the sampling pipe 51. The elastic rods 52 lose the external force restraint and reset under the action of their own elastic restoring force. The flow blocking piece 57 at the top of the thimble 56 is used to block the material in the sampling pipe 51 from flowing back into the thimble 56 again, forming a reliable seal, preventing the leakage of chemical materials, and maintaining the cleanliness and safety of the equipment and the surrounding environment.

[0031] In the actual sampling operation practice, the operator must first install the filter assembly 6 to the bottom of the cylinder 1. During the installation process, pay attention to the adsorption of the magnetic block 62 and the magnetic base 9 and the fitting state of the sealing gasket 63 to ensure that the installation is sealed. After preparation, carefully insert the filter assembly 6 into the chemical material. At this time, the material will quickly come into contact with the acid-base test paper 73. The operator pays attention to the color change of the acid-base test paper 73 through the observation window 72 to preliminarily judge the acid-base nature of the material. Then, gently pull the pull ring 41, the piston assembly 4 starts to operate, and a negative pressure environment is gradually formed in the cylinder 1. The chemical material is driven by the pressure difference. Under the circumstance, after double filtration by the filter component 6, it flows into the sampling container through the shunt pipe 11. During this period, the spring rod 52 and the sampling tube 51 cooperate closely to ensure that the sampling tube 51 is firmly fixed and the material flows smoothly. After the sampling task is completed, the sampling tube 51 is carefully taken out. At this point, the entire sampling process is successfully completed. In this set of operation processes, the various components are interdependent and work together, which not only achieves safe and relatively accurate sampling of chemical materials, but also, with the help of auxiliary functions such as filtration and detection, lays a solid foundation for subsequent analysis and detection work, and effectively guarantees the quality monitoring needs in the chemical production process and the promotion of process optimization.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A safe and environmentally friendly sampling device for chemical production, characterized in that: include: A cylinder (1), wherein a needle (8) is fixedly connected to the bottom of the cylinder (1), a shunt tube (11) is fixedly connected to the inner wall of the cylinder (1), and the shunt tubes (11) are arranged in a circular array along the central axis of the cylinder (1); A separation device (2), wherein the inner wall of the separation device (2) is slidably connected to the outer wall of the cylinder (1), the separation device (2) comprises a filter assembly (6), the top of the filter assembly (6) is pressed and sealed with the bottom of the cylinder (1), the filter assembly (6) is used to block solid materials in the chemical substance, and the outer wall of the filter assembly (6) is fixedly connected to a classification assembly (7), and the classification assembly (7) is used to present different colors by contacting with the chemical substance; An extraction device (3), wherein the outer wall of the extraction device (3) is slidably connected to the inner wall of the cylinder (1), the extraction device (3) comprises a piston assembly (4), the outer wall of the piston assembly (4) is slidably connected to the inner wall of the cylinder (1), the piston assembly (4) is used to change the air pressure inside the cylinder (1) by sliding, the extraction device (3) further comprises a limit assembly (5), the outer wall of the bottom of the limit assembly (5) is fixedly connected to the top of the shunt pipe (11), and the limit assembly (5) is used to fix the sampling container by clamping; The piston assembly (4) comprises a plug rod (42), the inner wall of the plug rod (42) being fixedly connected to a spring sheet (43) via a fixed spring bar, the spring sheets (43) being arranged in a linear array along the central axis of the plug rod (42), a pull ring (41) being inserted at the top of the plug rod (42), and a piston body (44) being fixedly connected to the bottom of the plug rod (42).

2. The safe and environmentally friendly sampling equipment for chemical production according to claim 1, characterized in that: The outer wall of the cylinder (1) is fixedly connected to a fixing frame (10), and the fixing frame (10) is arranged in a circular array along the central axis of the cylinder (1); the inner wall of the needle (8) is fixedly connected to a baffle (12) via a fixing spring bar; the outer wall of the cylinder (1) is fixedly connected to a magnetic seat (9), and the magnetic seat (9) is arranged in a circular array along the central axis of the cylinder (1).

3. The safe and environmentally friendly sampling equipment for chemical production according to claim 1, characterized in that: The outer wall of the plug rod (42) is slidably connected to the inner wall of the top of the cylinder (1); the inner wall of the cylinder (1) is slidably connected to the outer wall of the piston body (44) via a sealing ring (47); the outer wall of the sealing ring (47) is sleeved with the outer wall of the piston body (44); a jet groove (45) is provided in the wall of the piston body (44); the jet grooves (45) are arranged in a circular array along the central axis of the piston body (44); a reflux groove (46) is provided in the wall of the piston body (44); the reflux grooves (46) are arranged in a circular array along the central axis of the piston body (44); and a baffle plate (48) is fixedly connected to the inner wall of the bottom of the piston body (44) via a fixed elastic bar.

4. The safe and environmentally friendly sampling equipment for chemical production according to claim 1, characterized in that: The limiting assembly (5) comprises a sampling tube (51), the outer wall of the sampling tube (51) being slidably connected to an elastic rod (52), and the elastic rods (52) are arranged in a circular array along the central axis of the sampling tube (51), the bottom of the elastic rod (52) is fixedly connected to a fixing seat (55), and the inner wall of the fixing seat (55) is fixedly connected to an ejector pin (56).

5. The safe and environmentally friendly sampling equipment for chemical production according to claim 4, characterized in that: The outer wall of the ejector pin (56) is plugged into the inner wall of the bottom of the sampling tube (51), the bottom of the ejector pin (56) is fixedly connected to the top of the shunt tube (11), the outer wall of the elastic rod (52) is fixedly connected to a connecting rope (53), and the inner wall of the top of the ejector pin (56) is fixedly connected to a baffle (57) via a fixed elastic bar.

6. The safe and environmentally friendly sampling equipment for chemical production according to claim 1, characterized in that: The filter assembly (6) comprises a mounting cylinder (61), the bottom of the mounting cylinder (61) being clamped with a filter cover (64) via a clamping block (65), the outer wall of the clamping block (65) being fixedly connected to the outer wall of the filter cover (64), the inner wall of the mounting cylinder (61) being sleeved with a sealing gasket (63), and the inner wall of the bottom of the mounting cylinder (61) being fixedly connected to an inner filter cover (66).

7. A safe and environmentally friendly sampling device for chemical production according to claim 6, characterized in that: The outer wall of the clamping block (65) is clamped with the inner wall of the mounting cylinder (61); the outer wall of the mounting cylinder (61) is fixedly connected with a magnetic block (62), and the magnetic blocks (62) are arranged in a circular array along the central axis of the mounting cylinder (61); a filter groove (67) is provided in the wall of the filter cover (64), and the filter groove (67) is arranged in a circular array along the central axis of the filter cover (64).

8. The safe and environmentally friendly sampling equipment for chemical production according to claim 6, characterized in that: The inner wall of the installation cylinder (61) is slidably connected to the outer wall of the cylinder body (1), the inner wall of the installation cylinder (61) is slidably connected to the outer wall of the diversion pipe (11), and the outer wall of the sealing gasket (63) is pressed and sealed with the bottom of the cylinder body (1).

9. The safe and environmentally friendly sampling equipment for chemical production according to claim 1, characterized in that: The classification component (7) comprises a fixed cover (71), the fixed covers (71) are arranged in a ring array along the central axis of the cylinder (1), and the inner wall of the fixed cover (71) is plugged with an acid-base test paper (73).

10. A safe and environmentally friendly sampling device for chemical production according to claim 9, characterized in that: An observation window (72) is provided in the wall of the fixed cover (71), and the outer wall of the fixed cover (71) is fixedly connected to the outer wall of the mounting tube (61).

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