A polymerizer sampling device

Abstract

The present application relates to chemical sampling device technical field, specifically, it is a kind of polymerizer sampling device, including sampling device main body, the sampling device main body is through with polymerizer inside, the sampling device main body includes sampling tube shell, sampling core tube and quantitative sampling part, sampling tube shell is equipped with sample discharge pipe between polymerizer, sampling core tube and sampling tube shell inner wall sealing connection, the quantitative sampling part is slidably connected in sampling core tube inside, sampling device main body is set at the outside of polymerizer, can be according to actual inspection demand and carry out the sampling operation of different sampling amount, both can guarantee the sampling speed of large amount sampling, also can guarantee the sampling precision of small amount sampling, reduce the waste of reactant material, reduce cost loss.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical sampling device, in particular to a polymerizer sampling device. BACKGROUND

[0002] In the polymerization production process, the polymer slurry contains reaction products, reaction materials, intermediates and various impurities, in order to efficiently master the polymerization reaction, according to the production needs, it is necessary to take samples regularly, and the material is analyzed, which is convenient for the master of the reaction.

[0003] In the prior art, when the reaction material is sampled, the material is put into the sampling barrel through the sampling valve, which is not convenient for controlling the sampling amount, resulting in a large amount of single sampling, which is easy to cause waste of material, and the concentration of the polymerization reaction material is large, which is easy to cause blockage of the sampling valve, affecting the sampling efficiency.

[0004] The technical problem to be solved by the present application is to design a polymerizer sampling device, which is convenient for controlling the sampling amount, realizes efficient sampling, reduces material waste, and facilitates efficient analysis and testing of reaction materials. SUMMARY

[0005] To solve the above problems, the present application provides a polymerizer sampling device.

[0006] The technical scheme adopted by the present application to solve its technical problem is: a polymerizer sampling device, comprising a sampling device main body, the sampling device main body is through with the inside of the polymerizer, the sampling device main body includes a sampling tube shell, a sampling core tube and a quantitative sampling part, the sampling tube shell is provided with a sample discharge pipe between the polymerizer, the sampling core tube is sealingly connected with the inner wall of the sampling tube shell, and the quantitative sampling part is slidingly connected in the inside of the sampling core tube.

[0007] As an optimization, the sampling tube shell is horizontally arranged, the sampling tube shell includes a connecting section and a mounting section, the inner diameter of the mounting section is larger than that of the connecting section, the sampling core tube is slidingly and sealingly connected with the inner wall of the connecting section, and the end of the sampling core tube away from the polymerizer is provided with a driving end block, the mounting section is internally connected with a driving part, and the driving part is connected with the driving end block.

[0008] As an optimization, the upper end of the sample discharge pipe is connected with the inside of the connecting section, the length of the connecting section is less than the length of the sampling core tube, the sampling core tube is provided with a sampling core hole at the axis, the quantitative sampling part is slidingly and sealingly connected in the inside of the sampling core hole, and the two ends of the sampling core hole in the length direction are open;

[0009] The driving end block is circular, the driving end block is internally provided with a connecting ring groove, one side adjacent to the driving part of the connecting ring groove is open, the end surface of the driving end block is provided with a connecting gear, and the connecting gear is matched and connected with the driving part.

[0010] As optimization, the mounting section is internally provided with a mounting plate, the mounting plate is parallel to the end surface of the driving end block, the axial direction of the mounting plate is provided with a connecting through hole, and the connecting through hole is used for accommodating the quantitative sampling part to pass through;

[0011] The driving part comprises a driving motor and a telescopic push rod, the shell of the driving motor is fixedly connected with the mounting plate, the output shaft of the driving motor is connected with a driving gear, the driving gear is meshed and connected with the connecting gear, the telescopic push rod is fixedly connected with the outer end of the mounting section, the elongated end of the telescopic push rod is arranged in the connecting ring groove through the mounting plate, the elongated end of the telescopic push rod is connected with a limiting block, and the limiting block is slidingly connected with the connecting ring groove.

[0012] As optimization, the outer middle part of the sampling core pipe is provided with a sampling groove, the length direction of the sampling groove is helically arranged along the length direction of the sampling core pipe, the helical length of the sampling groove is less than the length of the connecting section, the minimum distance between the sampling groove and the inner wall of the polymerizer is less than the minimum distance between the sample discharge pipe and the polymerizer, and the minimum distance between the outer end of the sampling groove and the inner wall of the polymerizer is greater than the minimum distance between the sample discharge pipe and the inner wall of the polymerizer.

[0013] As optimization, the quantitative sampling part comprises a sampling seat and a quantitative sampling box, the sampling seat and the quantitative sampling box are both cylindrical, the circumferential side surface of the sampling seat is tightly sealed with the sampling core hole, the end of the sampling seat away from the polymerizer is provided with a first operating rod, the end of the quantitative sampling box away from the polymerizer is provided with a second operating rod, the length direction of the first operating rod is horizontally and parallelly arranged with the length direction of the second operating rod, and the outer end of the first operating rod and the outer end of the second operating rod are arranged on the outer side of the sampling device main body through the connecting through hole.

[0014] The sampling seat is internally provided with an accommodating cavity, the top of the accommodating cavity is provided with a first sampling opening, the end of the sampling seat away from the polymerizer is provided with a through hole, the top of the quantitative sampling box is provided with a second sampling opening, the outer side of the quantitative sampling box is tightly combined with the inner wall of the accommodating cavity, and the first sampling opening and the second sampling opening are oppositely and throughly arranged.

[0015] As optimization, the outer end of the first operating rod is provided with a vertical limiting block, the outer side of the mounting seat is provided with a limiting rod, the outer end of the limiting rod is slidingly connected with a limiting seat, the inside of the limiting seat is provided with a sliding groove, one end adjacent to the limiting block of the sliding groove is open, the limiting block and the limiting rod are slidingly connected with the sliding groove, and the outer side of the limiting block is tightly combined with the inner wall of the sliding groove.

[0016] As optimization, a controller is further included for executing commands to the drive motor and the telescopic push rod.

[0017] The present scheme has the following advantages:

[0018] The sampling device body is arranged outside the polymerization kettle, and different sampling amounts can be sampled according to actual inspection requirements, so that the sampling speed of a large amount of sampling can be ensured, the sampling precision of a small amount of sampling can be ensured, the waste of reactant materials is reduced, and the cost loss is reduced;

[0019] The sampling tube shell is connected with the polymerization kettle body, and the sampling core tube is extracted outward, so that efficient sampling can be performed through the sampling tube, the sampling demand of slow and large amount of detection can be quickly met, and the sampling tube is not easy to be blocked, and the use is convenient and fast;

[0020] When a small amount of sampling is required, the sampling core tube is pushed into the polymerization kettle body through the telescopic push rod, the sampling core tube is driven to rotate through the drive motor, the material flow is rotated outward through the sampling groove, slow sampling is realized, material spraying is not easy to occur, and material waste is reduced;

[0021] The quantitative sampling part is quantitatively sampled through the sampling core hole, the sampling of viscous materials is facilitated, the sampling device body is prevented from being blocked by the materials, and the sampling and material detection work are facilitated;

[0022] The quantitative sampling part is limited by the limiting seat, the quantitative sampling part and the sampling core tube are prevented from being deviated, the efficient use of the sampling device body is ensured, and the material sampling work of different requirements is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0023] ATTACHED Figure 1 is a schematic view of the shaft side of the present application.

[0024] ATTACHED Figure 2 is an enlarged structure schematic view of part A of the present application. Figure 1

[0025] ATTACHED Figure 3 is a cutaway structure schematic view of the sampling device body of the present application.

[0026] ATTACHED Figure 4 is a cutaway axial schematic view of the sampling device body of the present application.

[0027] ATTACHED Figure 5 is an axial schematic view of the present application omitting the sampling tube shell.

[0028] ATTACHED Figure 6 is an axial schematic view of the sampling core tube of the present application. ​

[0029] Figure 1 is a schematic diagram of the drive part of the present application. Figure 7 Figure 2 is a schematic diagram of the drive part of the present application.

[0030] Figure 3 is a schematic diagram of the drive part of the present application. Figure 8 Figure 4 is a schematic diagram of the drive part of the present application.

[0031] Figure 5 is a schematic diagram of the drive part of the present application. Figure 9 Figure 6 is a schematic diagram of the drive part of the present application.

[0032] Figure 7 is a schematic diagram of the drive part of the present application. Figure 10 Figure 8 is a schematic diagram of the drive part of the present application.

[0033] Figure 9 is a schematic diagram of the drive part of the present application. Wherein, 1, polymerization kettle, 2, sample tube shell, 3, sampling core tube, 4, sample tube, 5, connecting section, 6, mounting section, 7, drive end block, 8, sampling core hole, 9, connecting ring groove, 10, connecting gear, 11, mounting plate, 12, connecting through hole, 13, drive motor, 14, telescopic push rod, 15, drive gear, 16, limit block, 17, sampling groove, 18, sampling seat, 19, quantitative sampling box, 20, first operating rod, 21, second operating rod, 22, first sampling opening, 23, second sampling opening, 24, limit rod, 25, limit seat, 26, sliding groove. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0035] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] like Figures 1-3 As shown, a sampling device for a polymerization reactor 1 includes a sampling device body that is in communication with the interior of the polymerization reactor 1. The sampling device body includes a sampling tube shell 2, a sampling core tube 3, and a quantitative sampling part. A discharge pipe 4 is provided between the sampling tube shell 2 and the polymerization reactor 1. The sampling core tube 3 is sealed to the inner wall of the sampling tube shell 2. The quantitative sampling part is slidably connected to the interior of the sampling core tube 3.

[0038] like Figure 3 As shown, the sampling tube shell 2 is horizontally arranged. The sampling tube shell 2 includes a connecting section 5 and an installation section 6. The inner diameter of the installation section 6 is larger than the inner diameter of the connecting section 5. The sampling core tube 3 is slidably and sealed to the inner wall of the connecting section 5. The end of the sampling core tube 3 away from the polymerization reactor 1 is provided with a driving end block 7. The installation section 6 is internally connected to a driving part, and the driving part is connected to the driving end block 7.

[0039] like Figure 3 As shown, the upper end of the sampling tube 4 is connected to the inside of the connecting section 5. The length of the connecting section 5 is less than the length of the sampling core tube 3. The sampling core tube 3 has a sampling core hole 8 at its axis. The quantitative sampling part is slidably and sealed to the inside of the sampling core hole 8. The two ends of the sampling core hole 8 in the length direction are open.

[0040] like Figure 5 As shown, the drive end block 7 is annular, and a connecting ring groove 9 is provided inside the drive end block 7. The side of the connecting ring groove 9 adjacent to the drive part is open. A connecting gear 10 is provided on the end face of the drive end block 7, and the connecting gear 10 is connected to the drive part.

[0041] like Figure 4 , 5 As shown, the mounting section 6 is provided with a mounting plate 11 inside. The mounting plate 11 is parallel to the end face of the drive end block 7. The mounting plate 11 is provided with a connecting through hole 12 in the axial direction. The connecting through hole 12 is used to accommodate the passage of the quantitative sampling part.

[0042] As shown in Figure 4 , 5 , the driving part includes a driving motor 13 and a telescopic push rod 14, the shell of the driving motor 13 is fixedly connected with the mounting plate 11, a driving gear 15 is connected on the output shaft of the driving motor 13, the driving gear 15 is engagedly connected with the connecting gear 10, the telescopic push rod 14 is fixedly connected with the outer end of the mounting section 6, the elongated end of the telescopic push rod 14 is arranged in the connecting ring groove 9 through the mounting plate 11, the elongated end of the telescopic push rod 14 is connected with a limiting block 16, and the limiting block 16 is slidingly connected with the connecting ring groove 9.

[0043] As shown in Figure 4 , the outer middle part of the sampling core tube 3 is provided with a sampling groove 17, the length direction of the sampling groove 17 is arranged in a spiral along the length direction of the sampling core tube 3, the spiral length of the sampling groove 17 is less than the length of the connecting section 5, the minimum distance between the sampling groove 17 and the inner wall of the polymerizer 1 is less than the minimum distance between the sampling tube 4 and the polymerizer 1, and the minimum distance between the outer end of the sampling groove 17 and the inner wall of the polymerizer 1 is greater than the minimum distance between the sampling tube 4 and the inner wall of the polymerizer 1.

[0044] As shown in Figure 4 , 5 , the quantitative sampling part includes a sampling seat 18 and a quantitative sampling box 19, both of which are cylindrical, the circumferential side surface of the sampling seat 18 is sealedly attached with the sampling core hole 8, the end of the sampling seat 18 away from the polymerizer 1 is provided with a first operating rod 20, the end of the quantitative sampling box 19 away from the polymerizer 1 is provided with a second operating rod 21, the length direction of the first operating rod 20 is horizontally and parallelly arranged with the length direction of the second operating rod 21, and the outer end of the first operating rod 20 and the outer end of the second operating rod 21 are arranged outside the sampling device main body through the connecting through hole 12.

[0045] As shown in Figure 4 , 8 , the inside of the sampling seat 18 is provided with a containing cavity, the top of the containing cavity is provided with a first sampling opening 22, the end of the sampling seat 18 away from the polymerizer 1 is provided with a through hole, the top of the quantitative sampling box 19 is provided with a second sampling opening 23, the outside of the quantitative sampling box 19 is attached with the inner wall of the containing cavity, and the first sampling opening 22 and the second sampling opening 23 are oppositely and throughly arranged.

[0046] As shown in Figure 2 , 4As shown, the outer end of the first operating rod 20 is provided with a vertical sliding block, the outer side of the mounting seat is provided with a limiting rod 24, the outer end of the limiting rod 24 is slidingly connected with a limiting seat 25, the inside of the limiting seat 25 is provided with a sliding groove 26, one end adjacent to the sliding block of the sliding groove 26 is open, the sliding block and the limiting rod 24 are slidingly connected with the sliding groove 26, and the outer side of the sliding block is attached to the inner wall of the sliding groove 26.

[0047] Further comprising a controller for executing commands to the drive motor 13 and the telescopic push rod 14.

[0048] Method for use:

[0049] When a large amount of sampling is required, the telescopic push rod 14 is pulled outwards by the controller, so that the telescopic push rod 14 pulls the sampling core pipe 3 outwards, the sampling core pipe 3 unblocks the sampling pipe 4, and the material is discharged outwards through the sampling pipe 4, after the sampling is completed, the controller controls the telescopic push rod 14 to extend, so that the sampling core pipe 3 blocks the sampling pipe 4;

[0050] When quantitative sampling is required, or when sampling of viscous material is required, the limiting seat 25 is pulled outwards to unblock the first operating rod 20, the first operating rod 20 and the second operating rod 21 are pushed into the polymerizer 1, the first sampling opening 22 and the second sampling opening 23 are connected with the inside of the polymerizer 1, and the outer end of the sampling seat 18 seals the inside of the sampling core hole 8, so that the material enters the quantitative sampling box 19, after the sampling is completed, the sampling seat 18 and the quantitative sampling box 19 are pulled outwards, the sampling core pipe 3 is sealed by the sampling seat 18, the second operating rod 21 is pulled, the quantitative sampling box 19 is pulled outwards, and the material can be extracted;

[0051] When a small amount of sampling is required, the telescopic push rod 14 is pushed out by the controller, the sampling core pipe 3 is pushed into the polymerizer 1, the left end of the sampling groove 17 is located in the polymerizer 1, and the right end of the sampling groove 17 is located on the upper side of the sampling pipe 4, the drive motor 13 is controlled to rotate by the controller, the sampling core pipe 3 is driven to rotate by the drive gear 15, the material enters the sampling pipe 4 along the spiral sampling groove 17, and the sampling of the material is realized.

[0052] When not in use, the sampling pipe shell 2 and the sampling pipe 4 are sealed by the sampling core pipe 3, the sampling core hole 8 is sealed by the sampling seat 18, and the extension of the telescopic push rod 14 is limited by the mounting plate 11.

[0053] The position of the controller in the scheme is set by the worker during operation according to the actual situation, the controller is used for controlling the electrical devices used in the scheme, including but not limited to sensors, motors, telescopic rods, water pumps, electromagnetic valves, heating wires, heat pumps, display screens, computer input devices, switch buttons, communication devices, lamps, speakers and microphones; the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a single-chip microcomputer, and is used with a mainboard, a memory bar, a storage medium and a power supply, the power supply is a mains electricity or a lithium battery; when having a display screen, it also has a display card; for the operation principle of the controller, please refer to "Automatic Control Principle", "Microcontroller Principle and Application Simulation Case" and "Sensor Principle and Application" published by Tsinghua University Press, and other books in the field can be read for reference; other automation control and electrical devices not mentioned belong to the knowledge familiar to those skilled in the art, and will not be repeated here.

[0054] The above specific embodiments are only specific cases of the present application, and the patent protection scope of the present application includes but is not limited to the product forms and styles of the above specific embodiments, any suitable changes or modifications made by those skilled in the art to the polymer kettle sampling device according to the claims of the present application shall fall within the patent protection scope of the present application.

Claims

1. A polymerizer sampling device comprising a sampling device body which penetrates inside a polymerizer (1), characterized in that: The sampling device body comprises a sampling tube shell (2), a sampling core tube (3) and a quantitative sampling part, the sampling tube shell (2) is provided with a sampling discharge pipe (4) between the polymerization kettle (1), the sampling core tube (3) is sealingly connected with the inner wall of the sampling tube shell (2), and the quantitative sampling part is slidingly connected in the sampling core tube (3); The sampling tube shell (2) is horizontally arranged, the sampling tube shell (2) comprises a connecting section (5) and a mounting section (6), the inner diameter of the mounting section (6) is larger than that of the connecting section (5), the sampling core tube (3) is slidingly and sealingly connected with the inner wall of the connecting section (5), one end of the sampling core tube (3) away from the polymerization kettle (1) is provided with a driving end block (7), and the mounting section (6) is internally connected with a driving part, and the driving part is connected with the driving end block (7); The upper end of the sampling discharge pipe (4) is throughly connected with the inside of the connecting section (5), the length of the connecting section (5) is smaller than that of the sampling core tube (3), the sampling core tube (3) is provided with a sampling core hole (8) at the axis, the quantitative sampling part is slidingly and sealingly connected in the sampling core hole (8), and the two ends of the sampling core hole (8) in the length direction are open; The driving end block (7) is in the form of a circular ring, the driving end block (7) is internally provided with a connecting ring groove (9), one side of the connecting ring groove (9) adjacent to the driving part is open, the end surface of the driving end block (7) is provided with a connecting gear (10), and the connecting gear (10) is connected with the driving part in a matched mode; The mounting section (6) is internally provided with a mounting plate (11), the mounting plate (11) is parallel to the end surface of the driving end block (7), the mounting plate (11) is provided with a connecting through hole (12) in the axial direction, and the connecting through hole (12) is used for accommodating the quantitative sampling part to pass through; The driving part comprises a driving motor (13) and a telescopic push rod (14), the housing of the driving motor (13) is fixedly connected with the mounting plate (11), the output shaft of the driving motor (13) is connected with a driving gear (15), the driving gear (15) is meshingly connected with the connecting gear (10), the telescopic push rod (14) is fixedly connected with the outer end of the mounting section (6), the elongated end of the telescopic push rod (14) is arranged in the connecting ring groove (9) through the mounting plate (11), the elongated end of the telescopic push rod (14) is connected with a limiting block (16), and the limiting block (16) is slidingly connected with the connecting ring groove (9); The outer middle part of the sampling core tube (3) is provided with a sampling groove (17), the length direction of the sampling groove (17) is helically arranged along the length direction of the sampling core tube (3), the helical length of the sampling groove (17) is smaller than the length of the connecting section (5), the minimum distance between the sampling groove (17) and the inner wall of the polymerization kettle (1) is smaller than the minimum distance between the sampling discharge pipe (4) and the polymerization kettle (1), and the minimum distance between the outer end of the sampling groove (17) and the inner wall of the polymerization kettle (1) is greater than the minimum distance between the sampling discharge pipe (4) and the inner wall of the polymerization kettle (1). The quantitative sampling part includes a sampling seat (18) and a quantitative sampling box (19), both of which are cylindrical, the circumferential side of the sampling seat (18) is sealed with the sampling core hole (8), the end of the sampling seat (18) away from the polymerizer (1) is provided with a first operating rod (20), the end of the quantitative sampling box (19) away from the polymerizer (1) is provided with a second operating rod (21), the length direction of the first operating rod (20) is horizontally parallel to the length direction of the second operating rod (21), the outer end of the first operating rod (20) and the outer end of the second operating rod (21) are arranged outside the sampling device body through the connecting through hole (12); The inside of the sampling seat (18) is provided with a containing cavity, the top of the containing cavity is provided with a first sampling opening (22), the end of the sampling seat (18) away from the polymerizer (1) is provided with a through hole, the top of the quantitative sampling box (19) is provided with a second sampling opening (23), the outside of the quantitative sampling box (19) is sealed with the inner wall of the containing cavity, the first sampling opening (22) and the second sampling opening (23) are oppositely and throughly arranged; The outer end of the first operating rod (20) is provided with a vertical limiting block (16), the outside of the mounting seat is provided with a limiting rod (24), the outer end of the limiting rod (24) is slidingly connected with a limiting seat (25), the inside of the limiting seat (25) is provided with a sliding groove (26), the end adjacent to the limiting block (16) of the sliding groove (26) is open, the sliding block and the limiting rod (24) are both slidingly connected with the sliding groove (26), the outside of the sliding block is sealed with the inner wall of the sliding groove (26).

2. A polymerizer sampling device according to claim 1, wherein: Further comprising a controller, which is used for executing the command to the driving motor (13) and the telescopic push rod (14).

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