CN108827708B - Reation kettle sampling device - Google Patents
Reation kettle sampling device Download PDFInfo
- Publication number
- CN108827708B CN108827708B CN201810633928.1A CN201810633928A CN108827708B CN 108827708 B CN108827708 B CN 108827708B CN 201810633928 A CN201810633928 A CN 201810633928A CN 108827708 B CN108827708 B CN 108827708B
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- wall
- hole
- piston
- cavity
- sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
Abstract
The invention discloses a reaction kettle sampling device, which comprises a sampling tube arranged on a reaction kettle, wherein two ends of the sampling tube are respectively connected with the reaction kettle and a transfer bottle, a liftable large piston is arranged in the transfer bottle, a small piston is arranged in the large piston, and the large piston and the small piston are provided with driving mechanisms; a discharge pipe is arranged on the transfer bottle, and a discharge valve is arranged on the discharge pipe; the left end outer wall shaping of sampling tube has the ring flange, is fixed with the cylinder on the ring flange, and the piston rod of cylinder is fixed with the ejector pad, and the outer wall plug bush of ejector pad is intracavity including, the end connection that the sampling tube is close to reation kettle has relief valve and stop valve, and the stop valve is located between reation kettle and the relief valve. The invention has simple structure and convenient and quick sampling, can send redundant samples back to the reaction kettle, and reduces the production cost.
Description
The technical field is as follows:
the invention relates to the technical field of chemical machinery, in particular to a reaction kettle sampling device.
Background art:
at present, a reaction kettle is widely applied to the production of polyester resin, and in the production process, a sample needs to be taken from the reaction kettle to detect the condition in the production process of the polyester resin. At present, the sampling of a reaction kettle is generally carried out through a sampling device, the sampling device samples from a bottom valve or a top valve of the reaction kettle or a pipeline position in the reaction process, but the redundant samples cannot be recovered usually in the sampling process, more samples can be wasted, and the production cost is improved.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a reaction kettle sampling device which is simple in structure, convenient and quick to sample, capable of returning redundant samples to a reaction kettle and capable of reducing production cost.
The scheme for solving the technical problems is as follows:
a reaction kettle sampling device comprises a sampling tube arranged on the side wall of the lower end of a reaction kettle, wherein the right end of the sampling tube extends into the inner cavity of the reaction kettle; the left end of the sampling tube is connected with a transfer bottle, the transfer bottle comprises a plug bush and is fixed at a bottle opening part on the sampling tube, the upper end of the bottle opening part is fixed with a bottle body part, the bottle body part is formed with a circular cavity with an opening at the upper side, a liftable large piston is sleeved in the circular cavity, and a sampling cavity is formed by the lower bottom surface of the large piston and the lower half part of the circular cavity; a through hole for communicating the circular cavity with the inner cavity of the sampling tube is formed at the bottle mouth part, a small piston which is coaxially arranged with the through hole is sleeved at the middle part of the large piston, the outer wall of the small piston is matched and connected with the inner wall of the through hole, and the large piston and the small piston are provided with driving mechanisms;
a discharge pipe communicated with the sampling cavity is fixed on the side wall of the bottle body part, and a discharge valve is arranged on the discharge pipe; a flange plate protruding in the radial direction is formed on the outer wall of the left end of the sampling tube, a through hole is formed in the flange plate, an air cylinder is fixed on the flange plate, a push block is fixed at the extending end of a piston rod of the air cylinder, which penetrates through the through hole, the outer wall of the push block is inserted and sleeved in the inner cavity, and the outer wall of the push block is connected with the inner wall of the inner cavity in a matched mode;
the end part of the sampling tube close to the reaction kettle is connected with a pressure release valve and a stop valve, and the stop valve is positioned between the reaction kettle and the pressure release valve.
A convex ring protruding in the radial direction is formed on the inner wall of the middle part of the circular cavity, inner wall threads are formed on the inner wall of the convex ring, and the upper end of the large piston is pressed against the lower end face of the convex ring; the driving mechanism comprises a driving part arranged in the circular cavity, the driving part comprises a hexagonal boss, a large screw rod and a circular boss which are integrally formed, and the hexagonal boss and the circular boss are respectively positioned at the upper end and the lower end of the large screw rod; the large piston is hinged on the circular boss through a bearing, and the large screw is in threaded connection with the thread on the inner wall; the driving part is formed with a step through hole which penetrates through the driving part up and down, a second inner wall thread is formed on the inner wall of a small hole at the lower end of the step through hole, a small screw rod is screwed on the second inner wall thread, the small piston is fixed at the lower end of the small screw rod, a hexagonal cylinder is fixed at the upper end of the small screw rod, and the hexagonal cylinder is arranged in a large hole at the upper end of the step through hole.
The distance between the lower bottom surface of the large piston and the lower side surface of the circular cavity is H, the distance between the upper end surface of the large screw rod and the lower end surface of the convex ring is L, and the relation between H and L is that L is larger than H; the distance between the lower bottom surface of the small piston and the lower end surface of the bottle mouth part is H1, the distance between the lower bottom surface of the hexagonal cylinder and the step surface of the step through hole is H2, and the relation between H, H1 and H2 is that the sum of H and H2 is equal to H1.
The push block is semicircular, a sealing groove is formed in the outer wall of the push block, a sealing ring is sleeved in the sealing groove, and the outer wall of the sealing ring is pressed against the inner wall of the inner cavity.
The right side surface of the push block extends to the lower part of the through hole of the bottle mouth part.
The invention has the following outstanding effects: compared with the prior art, its simple structure, sample convenient and fast, and can send unnecessary sample back to reation kettle in, reduced manufacturing cost.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 about C;
FIG. 3 is a cross-sectional view of FIG. 2 taken about A-A;
fig. 4 is a cross-sectional view of fig. 2 taken about B-B.
The specific implementation mode is as follows:
example, referring to fig. 1 to 4, a sampling device for a reaction kettle comprises a sampling tube 2 installed on the sidewall of the lower end of the reaction kettle 1, wherein the right end of the sampling tube 2 extends into the inner cavity of the reaction kettle 1; the left end of the sampling tube 2 is connected with a transfer bottle 3, the transfer bottle 3 comprises a bottle opening part 31 which is inserted and fixed on the sampling tube 2, the upper end of the bottle opening part 31 is fixed with a bottle body part 32, the bottle body part 32 is formed with a circular cavity 321 with an opening at the upper side, a large piston 41 which can be lifted is sleeved in the circular cavity 321, and the lower bottom surface of the large piston 41 and the lower half part of the circular cavity 321 form a sampling cavity 301; a through hole 311 for communicating the circular cavity 321 with the inner cavity 201 of the sampling tube 2 is formed in the bottleneck part 31, a small piston 42 coaxially arranged with the through hole 311 is sleeved in the middle of the large piston 41, the outer wall of the small piston 42 is matched and connected with the inner wall of the through hole 311, and the large piston 41 and the small piston 42 are provided with driving mechanisms;
a discharge pipe 51 communicated with the sampling cavity 301 is fixed on the side wall of the bottle body part 32, and a discharge valve 52 is arranged on the discharge pipe 51; a flange 21 protruding in the radial direction is formed on the outer wall of the left end of the sampling tube 2, a through hole 211 is formed in the flange 21, an air cylinder 6 is fixed on the flange 21, a piston rod 61 of the air cylinder 6 penetrates through the extending end of the through hole 211, a push block 7 is fixed on the extending end of the piston rod, the outer wall of the push block 7 is inserted in the inner cavity 201, and the outer wall of the push block 7 is connected with the inner wall of the inner cavity 201 in a matched mode;
the end part of the sampling tube 2 close to the reaction kettle 1 is connected with a pressure release valve 8 and a stop valve 9, and the stop valve 9 is positioned between the reaction kettle 1 and the pressure release valve 8.
Furthermore, a convex ring 33 protruding in the radial direction is formed on the inner wall of the middle part of the circular cavity 321, inner wall threads 331 are formed on the inner wall of the convex ring 33, and the upper end of the large piston 41 is pressed against the lower end surface of the convex ring 33; the driving mechanism comprises a driving part 43 arranged in the circular cavity 321, the driving part 43 comprises a hexagonal boss 431, a large screw 432 and a circular boss 433 which are integrally formed, and the hexagonal boss 431 and the circular boss 433 are respectively positioned at the upper end and the lower end of the large screw 432; the large piston 41 is hinged on a circular boss 433 through a bearing 44, and a large screw 432 is screwed on the inner wall thread 331; a stepped through hole 434 is formed in the driving portion 43 and penetrates up and down, a second inner wall thread 435 is formed on the inner wall of the lower end small hole of the stepped through hole 434, a small screw 45 is screwed on the second inner wall thread 435, the small piston 42 is fixed at the lower end of the small screw 45, a hexagonal cylinder 46 is fixed at the upper end of the small screw 45, and the hexagonal cylinder 46 is arranged in the upper end large hole of the stepped through hole 434.
Furthermore, the distance between the lower bottom surface of the large piston 41 and the lower side surface of the circular cavity 321 is H, the distance between the upper end surface of the large screw 432 and the lower end surface of the convex ring 33 is L, and the relationship between H and L is that L is greater than H; the distance between the lower bottom surface of the small piston 42 and the lower end surface of the finish portion 31 is H1, the distance between the lower bottom surface of the hexagonal cylinder 46 and the stepped surface of the stepped through hole 434 is H2, and the relationship between H, H1 and H2 is such that the sum of H and H2 is equal to H1.
Furthermore, the push block 7 is semicircular, a sealing groove is formed in the outer wall of the push block 7, a sealing ring 71 is sleeved in the sealing groove, and the outer wall of the sealing ring 71 is pressed against the inner wall of the inner cavity 201.
Further, the right side surface of the push block 7 extends below the through hole 311 of the mouth portion 31.
The working principle is as follows: sampling: firstly, opening the stop valve 9, allowing the polyester resin in the reaction kettle 1 to enter the sampling tube 2, then entering the sampling cavity 301 of the bottle body part 32 through the through hole 311 of the bottle mouth part 31, and closing the stop valve 9; secondly, placing a sample receiving bottle at the end part of the discharge pipe 51, then opening the discharge valve 52, enabling the polyester resin in the sampling cavity 301 to enter the sample receiving bottle through the discharge pipe 51, and then closing the discharge valve 52; thirdly, the large screw 432 is rotated by the hexagonal sleeve through the hexagonal boss 431, the large screw 432 drives the large piston 41 to move downwards under the action of the inner wall thread 331, the large piston 41 moves downwards to press the redundant sample in the sampling cavity 301 back into the sampling tube 2 through the through hole 3111, when the downward resistance of the large piston 41 is large, the stop valve 9 is opened, the large piston 41 continues to move downwards, when the large piston 41 presses against the lower side surface of the circular cavity 321, the small screw 45 is rotated, the small screw 45 drives the small piston 42 to move downwards and then extends into the through hole 311, the redundant sample in the through hole 311 is pressed back into the sampling tube 2, and finally the small piston 42 presses against the push block 7; fourthly, the air cylinder 6 is started, the piston rod 61 of the air cylinder 6 pushes the push block 7 to move towards the reaction kettle 1, the push block 7 presses the sample 2 in the sampling tube 2 back to the reaction kettle 1, and then the stop valve 9 is closed; fifthly, the cylinder 6 contracts, the push block 7 resets, then the small screw rod 45 and the large screw rod 432 are reversely rotated, and the small piston 42 and the large piston 41 reset.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (4)
1. A reaction kettle sampling device comprises a sampling tube (2) arranged on the side wall of the lower end of a reaction kettle (1), wherein the right end of the sampling tube (2) extends into the inner cavity of the reaction kettle (1); the method is characterized in that: the left end of the sampling tube (2) is connected with a transfer bottle (3), the transfer bottle (3) comprises a bottle opening part (31) which is inserted and fixed on the sampling tube (2), the upper end of the bottle opening part (31) is fixed with a bottle body part (32), the bottle body part (32) is formed with a round cavity (321) with an opening at the upper side, a large piston (41) capable of ascending and descending is sleeved in the round cavity (321), and the lower bottom surface of the large piston (41) and the lower half part of the round cavity (321) form a sampling cavity (301); a through hole (311) which is communicated with the circular cavity (321) and the inner cavity (201) of the sampling tube (2) is formed in the bottleneck part (31), a small piston (42) which is coaxially arranged with the through hole (311) is sleeved in the middle of the large piston (41), the outer wall of the small piston (42) is connected with the inner wall of the through hole (311) in a matched mode, and the large piston (41) and the small piston (42) are provided with driving mechanisms;
a discharge pipe (51) communicated with the sampling cavity (301) is fixed on the side wall of the bottle body part (32), and a discharge valve (52) is arranged on the discharge pipe (51); a flange plate (21) protruding in the radial direction is formed on the outer wall of the left end of the sampling tube (2), a through hole (211) is formed in the flange plate (21), an air cylinder (6) is fixed on the flange plate (21), a push block (7) is fixed at the extending end of a piston rod (61) of the air cylinder (6) penetrating through the through hole (211), the outer wall of the push block (7) is inserted in the inner cavity (201), and the outer wall of the push block (7) is connected with the inner wall of the inner cavity (201) in a matched mode;
the end part of the sampling pipe (2) close to the reaction kettle (1) is connected with a pressure release valve (8) and a stop valve (9), and the stop valve (9) is positioned between the reaction kettle (1) and the pressure release valve (8);
a convex ring (33) protruding in the radial direction is formed on the inner wall of the middle part of the circular cavity (321), inner wall threads (331) are formed on the inner wall of the convex ring (33), and the upper end of the large piston (41) is pressed against the lower end face of the convex ring (33); the driving mechanism comprises a driving part (43) arranged in the circular cavity (321), the driving part (43) comprises a hexagonal boss (431), a large screw rod (432) and a circular boss (433) which are integrally formed, and the hexagonal boss (431) and the circular boss (433) are respectively positioned at the upper end and the lower end of the large screw rod (432); the large piston (41) is hinged on the circular boss (433) through a bearing (44), and the large screw rod (432) is screwed on the inner wall thread (331); the driving part (43) is formed with a step through hole (434) which penetrates through the driving part up and down, a second inner wall thread (435) is formed on the inner wall of a lower end small hole of the step through hole (434), a small screw rod (45) is screwed on the second inner wall thread (435), the small piston (42) is fixed at the lower end of the small screw rod (45), a hexagonal cylinder (46) is fixed at the upper end of the small screw rod (45), and the hexagonal cylinder (46) is arranged in an upper end large hole of the step through hole (434).
2. The reactor sampling device of claim 1, wherein: the distance between the lower bottom surface of the large piston (41) and the lower side surface of the circular cavity (321) is H, the distance between the upper end surface of the large screw rod (432) and the lower end surface of the convex ring (33) is L, and the relation between H and L is that L is larger than H; the distance between the lower bottom surface of the small piston (42) and the lower end surface of the bottle mouth part (31) is H1, the distance between the lower bottom surface of the hexagonal cylinder (46) and the step surface of the step through hole (434) is H2, and the relationship between H, H1 and H2 is such that the sum of H and H2 is equal to H1.
3. The reactor sampling device of claim 1, wherein: the push block (7) is semicircular, a sealing groove is formed in the outer wall of the push block (7), a sealing ring (71) is sleeved in the sealing groove, and the outer wall of the sealing ring (71) is pressed against the inner wall of the inner cavity (201).
4. The reactor sampling device of claim 1, wherein: the right side surface of the push block (7) extends to the lower part of the through hole (311) of the bottle mouth part (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633928.1A CN108827708B (en) | 2018-06-20 | 2018-06-20 | Reation kettle sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810633928.1A CN108827708B (en) | 2018-06-20 | 2018-06-20 | Reation kettle sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108827708A CN108827708A (en) | 2018-11-16 |
| CN108827708B true CN108827708B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810633928.1A Active CN108827708B (en) | 2018-06-20 | 2018-06-20 | Reation kettle sampling device |
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| Country | Link |
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| CN (1) | CN108827708B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0455333A3 (en) * | 1990-03-30 | 1992-01-15 | Bp Chemicals Limited | Liquid sampling process and apparatus |
| CN2938060Y (en) * | 2006-08-24 | 2007-08-22 | 宝山钢铁股份有限公司 | Liquid sampler of pressure reaction pot |
| WO2009075001A1 (en) * | 2007-12-13 | 2009-06-18 | Biocell Center S.P.A. | Method of collection and preservation of fluids and/or materials, in particular of organic fluids and/or materials containing stem cells, and device employable in such method |
| CN104406821A (en) * | 2014-11-28 | 2015-03-11 | 重庆长风化学工业有限公司 | Sampling device for reaction kettle |
| CN204646846U (en) * | 2014-12-15 | 2015-09-16 | 江苏无锡建华机床附件集团有限公司 | A kind of double-stroke angling cylinder |
| CN206470086U (en) * | 2017-01-22 | 2017-09-05 | 深圳市瑞晟新材料有限公司 | A kind of production of resins line conveyance conduit on-line period device |
| CN107500175A (en) * | 2017-09-25 | 2017-12-22 | 嘉兴市永邦机电有限公司 | A kind of hydraulic jack for being easy to nursing |
-
2018
- 2018-06-20 CN CN201810633928.1A patent/CN108827708B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0455333A3 (en) * | 1990-03-30 | 1992-01-15 | Bp Chemicals Limited | Liquid sampling process and apparatus |
| CN2938060Y (en) * | 2006-08-24 | 2007-08-22 | 宝山钢铁股份有限公司 | Liquid sampler of pressure reaction pot |
| WO2009075001A1 (en) * | 2007-12-13 | 2009-06-18 | Biocell Center S.P.A. | Method of collection and preservation of fluids and/or materials, in particular of organic fluids and/or materials containing stem cells, and device employable in such method |
| CN104406821A (en) * | 2014-11-28 | 2015-03-11 | 重庆长风化学工业有限公司 | Sampling device for reaction kettle |
| CN204646846U (en) * | 2014-12-15 | 2015-09-16 | 江苏无锡建华机床附件集团有限公司 | A kind of double-stroke angling cylinder |
| CN206470086U (en) * | 2017-01-22 | 2017-09-05 | 深圳市瑞晟新材料有限公司 | A kind of production of resins line conveyance conduit on-line period device |
| CN107500175A (en) * | 2017-09-25 | 2017-12-22 | 嘉兴市永邦机电有限公司 | A kind of hydraulic jack for being easy to nursing |
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|---|---|
| CN108827708A (en) | 2018-11-16 |
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Effective date of registration: 20210427 Address after: No. 516, South Road, Haian Town, Haian City, Nantong City, Jiangsu Province Patentee after: JIANGSU JIAYU SPECIAL EQUIPMENT Co.,Ltd. Address before: No. 2 Taishan Road, Jiangsu science and Technology Park, 215000 Canton City of Suzhou province high tech Zone pilot base in C district two floor Patentee before: SUZHOU GAIDE FINE MATERIALS Co.,Ltd. |