CN107014641B - Automatic sampling device - Google Patents
Automatic sampling device Download PDFInfo
- Publication number
- CN107014641B CN107014641B CN201710287080.7A CN201710287080A CN107014641B CN 107014641 B CN107014641 B CN 107014641B CN 201710287080 A CN201710287080 A CN 201710287080A CN 107014641 B CN107014641 B CN 107014641B
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- annular
- component
- sampling
- assembly
- wall
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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
-
- 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
- G01N2001/1031—Sampling from special places
- G01N2001/105—Sampling from special places from high-pressure reactors or lines
Abstract
The invention discloses an automatic sampling device, comprising: a sleeve and a sampling assembly having a reservoir therein; the sleeve consists of an annular fixed component positioned at the upper part and an annular rotating component positioned at the lower part; the inner wall of the bottom of the annular fixing component is provided with an annular inward concave chute; the outer wall of the top of the annular rotating assembly is provided with an annular sliding block; the top of the annular fixing component is provided with a sample feeding tube, the sample storage device is also provided with an air extraction component, the outer wall of the annular rotating component is provided with a plurality of groups of driving motors, each group of driving motors is connected with a screw rod lifter through a horizontal rotating rod with threads, and the vertical direction of the screw rod lifter is provided with a vertical lifting component; the sampling assembly includes a sampling tube. According to the invention, through arranging the annular fixed component and the annular rotating component, synchronous rotation of the sleeve, the sampling component and the stirring rotating shaft is realized, real-time sampling in the reaction process is realized, and the sampling efficiency is improved.
Description
Technical Field
The invention relates to the field of mechanical manufacturing of sampling devices, in particular to an automatic sampling device.
Background
The reaction kettle is a comprehensive reaction container, and the structural function and configuration accessories of the reaction kettle are designed according to the reaction conditions. The preset reaction steps can be completed with higher automation degree from the beginning of feeding, reaction and discharging, and the important parameters such as temperature, pressure, mechanical control (stirring, blowing and the like) and reactant/product concentration in the reaction process are strictly regulated and controlled. The structure of the device is generally composed of a kettle body, a transmission device, a stirring device, a heating device, a cooling device and a sealing device.
At present, the reaction kettle does not have a special sampling device, can only be used for sampling through closing stirring and then through the opening on the kettle bottom or the kettle side wall, and the sampling position is fixed, so that the sampling depth cannot be selected. Particularly, in multiphase reaction or in stratified reaction, the lower layer solution needs to be discharged to obtain the upper layer solution, or the upper layer solution is manually sampled after the tank is opened, and the defects of low sampling efficiency and limited sampling position exist.
Disclosure of Invention
The invention provides an automatic sampling device aiming at the problems, and solves the defects that the existing plastic shell cannot be automatically arranged and has long manual operation time period.
The technical scheme adopted by the invention is as follows:
an automatic sampling device is arranged in a reaction kettle, and the reaction kettle comprises a stirring rotating shaft and stirring paddles arranged below the stirring rotating shaft; comprising the following steps: a sleeve and a sampling assembly having a reservoir therein; the sleeve consists of an annular fixed component positioned at the upper part and an annular rotating component positioned at the lower part;
the inner wall of the bottom of the annular fixing component is provided with an annular inwards concave chute; the outer wall of the top of the annular rotating assembly is provided with an annular sliding block; the sliding block is matched with the sliding groove, and simultaneously the sliding block is in sliding fit with the sliding groove and keeps continuously contacted with the sliding groove, so that the sleeve is ensured to be in a sealing state;
the annular fixing component is used for fixing the suspender on the top of the inner wall of the reaction kettle, and the annular rotating component is fixed on the stirring rotating shaft of the reaction kettle and rotates along with the stirring rotating shaft; the inner wall of the annular rotating component is fixed with a plurality of groups of stirring plates which spirally descend along the inner wall of the annular rotating component;
the top of the annular fixing component is provided with a sample feeding tube, one end of the sample feeding tube extends into the sleeve, the other end of the sample feeding tube is connected with a sample storage device, the sample storage device is also provided with an air extraction component, and the air extraction component is used for extracting gas in the sleeve;
the outer wall of the annular rotating component is provided with a plurality of groups of driving motors, each group of driving motors is connected with a screw rod lifter through a horizontal rotating rod with threads, a vertical lifting component is arranged in the vertical direction of the screw rod lifter, and the vertical lifting component is fixedly connected with a sampling component; the driving motor is used for driving the horizontal rotating rod to rotate and driving the vertical lifting assembly of the screw rod lifter to move up and down, and the vertical lifting assembly is used for driving the sampling device to move up and down;
the sampling assembly comprises a sampling tube, one end of the sampling tube penetrates into a gap between two adjacent stirring paddles, the other end of the sampling tube is connected with the annular rotating assembly through a metal hose, and the sampling tube is used for extracting reaction liquid into the sleeve and is transferred into the sample storage device through the sample feeding tube.
According to the invention, the annular fixed component and the annular rotating component are arranged, so that synchronous rotation of the sleeve, the sampling component and the stirring rotating shaft is realized, real-time sampling in the reaction process is realized, the sampling efficiency is improved, the sampling tube can be lifted, the sampling depth is not limited, and the application range of the device is wider.
Optionally, the automatic sampling device further comprises a control unit, wherein the control unit is electrically connected with the air extraction component, and the control unit is used for controlling the air extraction component to move.
Optionally, the automatic sampling device further comprises a signal receiver, and the signal receiver is fixed on the outer wall of the reaction kettle; the information of the signal transmitter is received and the received information is transmitted to the control unit.
Optionally, the sampling assembly further comprises a temperature sensor and a through pipe, and the temperature sensor is fixed at the bottom end of the through pipe; the upper part of the through pipe is fixedly connected with a vertical lifting assembly; the top of the through pipe is provided with a storage battery and a signal transmitter, and the storage battery is electrically connected with the temperature sensor and the signal transmitter; the temperature sensor penetrates into a gap between two adjacent stirring paddles, the signal transmitting device is electrically connected with the driving motor, and the control unit can be used for controlling the driving motor to rotate.
Optionally, the cross section of the stirring plate is a cone converging from bottom to top. Adopt to stir the board for annular rotating assembly drives and stirs the reaction liquid that the board stirring was absorbed, makes the reaction liquid misce bene, has guaranteed the homogeneity of sample, has improved stirring effect by the toper stirring board of bottom to top convergence.
Optionally, the annular fixing component is formed by splicing a pair of symmetrical first splicing pieces, and the annular rotating component is formed by splicing a pair of symmetrical second splicing pieces; the first splice and the second splice are respectively provided with an external ear part with the matching, the external ear part is provided with a threaded hole, and the threaded hole is penetrated by a bolt and is opposite to the first splice through a nut.
Optionally, the end of the suspender is also provided with an adhesion plate with an arc surface, and the adhesion plate is adhered to the inner wall of the top of the reaction kettle through viscose. The annular fixing component is formed by splicing a pair of symmetrical first splicing pieces, the annular rotating component is formed by splicing a pair of symmetrical second splicing pieces, and the adhesive plate is adopted, so that the automatic sampling device is convenient to install and detach, and the installation is completed without large workload.
The beneficial effects of the invention are as follows: according to the invention, the annular fixed component and the annular rotating component are arranged, so that synchronous rotation of the sleeve, the sampling component and the stirring rotating shaft is realized, real-time sampling in the reaction process is realized, the sampling efficiency is improved, the sampling tube can be lifted, the sampling depth is not limited, and the application range of the device is wider.
In addition, adopt and stir the board for annular rotating assembly drives and stirs the reaction liquid that the board stirring was absorbed, makes the reaction liquid misce bene, has guaranteed the homogeneity of sample, has improved stirring effect by the toper stirring board of bottom to top convergence.
Description of the drawings:
FIG. 1 is a schematic view of the internal structure of an automatic sampling device according to the present invention;
FIG. 2 is a schematic cross-sectional view of a sleeve of the automatic sampling device;
FIG. 3 is a schematic view of the internal structure of the screw elevator of the automatic sampling device;
fig. 4 is a circuit diagram of the control unit and other functional units of the automatic sampling device.
The reference numerals in the drawings are as follows:
1. a sleeve; 2. a sampling assembly; 3. an annular fixing assembly; 4. an annular rotating assembly; 5. a chute; 6. a slide block; 7. a boom; 8. a sample feeding tube; 9. a sample storage device; 10. an air extraction assembly; 11. a driving motor; 12. a horizontal turning rod; 14. a vertical lifting assembly; 15. a screw elevator; 16. a sampling tube; 17. a control unit; 18. a temperature sensor; 19. a through pipe; 20. a signal receiver; 21. a signal transmitter; 23. a storage battery; 24. stirring plates; 25. a metal hose; 30. a liquid storage cavity; 31. a first splice; 32. a second splice; 33. a bolt; 35. a nut; 36. an outer ear component; 37. an adhesive sheet; 100. a stirring rotating shaft; 101. stirring paddles.
The specific embodiment is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
The upper part and the lower part are in terms of the positions of the upper part and the lower part of the reaction kettle.
The invention discloses an automatic sampling device (see figures 1, 2, 3 and 4), which is used for being arranged in a reaction kettle, wherein the reaction kettle comprises a stirring rotating shaft 100 and a stirring blade 101 arranged below the stirring rotating shaft 100; comprising the following steps: a sleeve 1 with a liquid storage cavity inside and a sampling assembly 2; the sleeve 1 consists of an annular fixed component 3 positioned at the upper part and an annular rotating component 4 positioned at the lower part;
the inner wall of the bottom of the annular fixing component 3 is provided with an annular inward concave chute 5; the outer wall of the top of the annular rotating assembly 4 is provided with an annular sliding block 6; the slide 6 is adapted to the slide 5, while the slide 6 is in sliding engagement with the slide 5 and is kept in constant contact for ensuring that the sleeve 1 is in a sealed state;
the annular fixing component 3 is used for fixing the suspender 7 at the top of the inner wall of the reaction kettle, and the annular rotating component 4 is fixed on the stirring rotating shaft 100 of the reaction kettle and rotates along with the stirring rotating shaft 100; the inner wall of the annular rotating component 4 is fixed with a plurality of groups of stirring plates 24 which spirally descend along the inner wall;
the top of the annular fixing component 3 is provided with a sample feeding tube 8, one end of the sample feeding tube 8 penetrates into the sleeve 1, the other end of the sample feeding tube is connected with a sample storage device 9, the sample storage device 9 is also provided with an air extraction component 10, and the air extraction component 10 is used for extracting gas in the sleeve 1;
a plurality of groups of driving motors 11 are arranged on the outer wall of the annular rotating assembly 4, each group of driving motors 11 is connected with a screw rod lifter 15 through a horizontal rotating rod 12 with threads, a vertical lifting assembly 14 is arranged in the vertical direction of the screw rod lifter 15, and the vertical lifting assembly 14 is fixedly connected with the sampling assembly 2; the driving motor 11 is used for driving the horizontal rotating rod 12 to rotate and driving the vertical lifting assembly 14 of the screw rod lifter 15 to move up and down, and the vertical lifting assembly 14 is used for driving the sampling device to move up and down;
the sampling assembly 2 comprises a sampling tube 16, one end of the sampling tube 16 penetrates into a gap between two adjacent stirring paddles 101, the other end of the sampling tube 16 is connected with the annular rotating assembly 4 through a metal hose 25, and the sampling tube 16 is used for extracting reaction liquid into the sleeve 1 and transferring the reaction liquid into the sample storage 9 through the sample feeding tube 8. In order to improve the sealing effect of the sleeve 1, lubricating oil may be generally applied to the contact surface between the slider 6 and the chute 5, but the lubricating oil is preferably selected so as not to affect the detection of the sampling liquid.
According to the invention, through the arrangement of the annular fixed component 3 and the annular rotating component 4, the synchronous rotation of the sleeve 1, the sampling component 2 and the stirring rotating shaft 100 is realized, the real-time sampling in the reaction process is realized, the sampling efficiency is improved, the sampling tube 16 which can be lifted is realized, the sampling depth is not limited, and the application range of the device is wider.
The automatic sampling device further comprises a control unit 17, wherein the control unit 17 is electrically connected with the air extraction assembly 10, and the control unit 17 is used for controlling the air extraction assembly 10 to move. The automatic sampling device further comprises a signal receiver 20, wherein the signal receiver 20 is fixed on the outer wall of the reaction kettle; the information of the signal transmitter 21 is received and the received information is transmitted to the control unit 17.
The sampling assembly 2 further comprises a temperature sensor 18 and a through pipe 19, wherein the temperature sensor 18 is fixed at the bottom end of the through pipe 19; the upper part of the through pipe 19 is fixedly connected with the vertical lifting assembly 14; the top of the through pipe 19 is provided with a storage battery 23 and a signal emitter 21, and the storage battery 23 is electrically connected with the temperature sensor 18 and the signal emitter 21; the temperature sensor 18 is located deep into the gap between two adjacent stirring paddles 101, the signal transmitting device 21 is electrically connected to the driving motor 11, and the control unit 17 may be further configured to control the driving motor 11 to rotate.
The cross section of the stirring plate 24 is conical and converges from bottom to top. Adopt stirring board 24 for annular rotating assembly 4 drives stirring board 24 stirring the reaction liquid of absorbing, makes the reaction liquid misce bene, has guaranteed the homogeneity of sample, has improved stirring effect by bottom to the convergent toper stirring board 24 in top.
The annular fixed assembly 3 is formed by splicing a pair of symmetrical first splicing pieces 31, and the annular rotating assembly 4 is formed by splicing a pair of symmetrical second splicing pieces 32; the first splicing piece 31 and the second splicing piece 32 are respectively provided with an external ear part 36 which is matched with each other, the external ear parts 36 are provided with threaded holes, and the threaded holes penetrate through bolts 33 and realize the opposite of the first splicing piece 31 and the second splicing piece 32 through nuts 35.
The tail end of the suspender 7 is also provided with an adhesion plate 37 with an arc surface, and the adhesion plate 37 is adhered to the inner wall of the top of the reaction kettle through viscose. The annular fixing component 3 is formed by splicing a pair of symmetrical first splicing pieces 31, the annular rotating component 4 is formed by splicing a pair of symmetrical second splicing pieces 32, and the adhesive plate 37 is adopted, so that the automatic sampling device is convenient to install and detach, and the installation is completed without large workload.
When the invention is implemented, the first splicing piece is spliced to form the annular fixing component, the second splicing piece is spliced to form the annular rotating component, the annular rotating component is arranged on the stirring rotating shaft of the reaction kettle and is fixed through the hanging rod, the sampling tube and the through tube are arranged on the screw rod lifter, and meanwhile, the temperature sensor, the storage battery and the signal transmitting device are arranged on the through tube. The stirring rotating shaft is started to drive the sampling device to rotate, and during reaction, the control unit controls the driving motor to rotate, the driving motor is used for driving the horizontal rotating rod to rotate and drives the vertical lifting assembly of the screw rod lifter to move up and down, and the vertical lifting assembly is used for driving the sampling device to move up and down. The air extractor pumps the gas in the liquid storage cavity, and the reaction liquid is sucked into the liquid storage cavity until the liquid in the liquid storage cavity does not reach the deep sample feeding pipe, and the stirring plate arranged on the inner wall of the annular rotating assembly in the liquid storage cavity stirs the sucked liquid, so that the liquid is more uniform, and the sample solution is conveyed into the liquid storage device through the sample feeding pipe to finish sampling.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all equivalent structures as modifications within the scope of the invention, either directly or indirectly, as may be contemplated by the present invention.
Claims (7)
1. An automatic sampling device is arranged in a reaction kettle, and the reaction kettle comprises a stirring rotating shaft and stirring paddles arranged below the stirring rotating shaft; characterized by comprising the following steps: a sleeve and a sampling assembly having a reservoir therein; the sleeve consists of an annular fixed component positioned at the upper part and an annular rotating component positioned at the lower part;
the inner wall of the bottom of the annular fixing component is provided with an annular inwards concave chute; the outer wall of the top of the annular rotating assembly is provided with an annular sliding block; the sliding block is matched with the sliding groove, and simultaneously the sliding block is in sliding fit with the sliding groove and keeps continuously contacted with the sliding groove, so that the sleeve is ensured to be in a sealing state;
the annular fixing component is used for fixing the suspender on the top of the inner wall of the reaction kettle, and the annular rotating component is fixed on the stirring rotating shaft of the reaction kettle and rotates along with the stirring rotating shaft; the inner wall of the annular rotating component is fixed with a plurality of groups of stirring plates which spirally descend along the inner wall of the annular rotating component;
the top of the annular fixing component is provided with a sample feeding tube, one end of the sample feeding tube extends into the sleeve, the other end of the sample feeding tube is connected with a sample storage device, the sample storage device is also provided with an air extraction component, and the air extraction component is used for extracting gas in the sleeve;
the outer wall of the annular rotating component is provided with a plurality of groups of driving motors, each group of driving motors is connected with a screw rod lifter through a horizontal rotating rod with threads, a vertical lifting component is arranged in the vertical direction of the screw rod lifter, and the vertical lifting component is fixedly connected with a sampling component; the driving motor is used for driving the horizontal rotating rod to rotate and driving the vertical lifting assembly of the screw rod lifter to move up and down, and the vertical lifting assembly is used for driving the sampling assembly to move up and down;
the sampling assembly comprises a sampling tube, one end of the sampling tube penetrates into a gap between two adjacent stirring paddles, the other end of the sampling tube is connected with the annular rotating assembly through a metal hose, and the sampling tube is used for extracting reaction liquid into the sleeve and transferring the reaction liquid into the sample storage through the sample feeding tube;
the sleeve, the sampling assembly and the stirring rotating shaft synchronously rotate, so that real-time sampling in the reaction process is realized.
2. The automatic sampling device of claim 1, further comprising a control unit electrically connected to the pumping assembly, the control unit for controlling movement of the pumping assembly.
3. The automatic sampling device of claim 2, further comprising a temperature sensor and a tube, the temperature sensor being secured to a bottom end of the tube; the upper part of the through pipe is fixedly connected with a vertical lifting assembly; the top of the through pipe is provided with a storage battery and a signal transmitter, and the storage battery is electrically connected with the temperature sensor and the signal transmitter; the temperature sensor penetrates into a gap between two adjacent stirring paddles, the signal transmitter is electrically connected with the driving motor, and the control unit can be used for controlling the driving motor to rotate.
4. The automatic sampling device of claim 3, further comprising a signal receiver secured to the outer wall of the reaction vessel; the information of the signal transmitter is received and the received information is transmitted to the control unit.
5. An automatic sampling device according to claim 1, wherein said stir plate is tapered in cross-section converging from bottom to top.
6. The automatic sampling device of claim 1, wherein the annular stationary assembly is formed by a pair of symmetrical first splicers and the annular rotating assembly is formed by a pair of symmetrical second splicers; the first splice and the second splice are respectively provided with an external ear part with the matching, the external ear part is provided with a threaded hole, and the threaded hole is penetrated by a bolt and is opposite to the first splice through a nut.
7. The automatic sampling device according to claim 6, wherein the end of the hanger rod is further provided with an adhesion plate having an arc surface, and the adhesion plate is adhered to the inner wall of the top of the reaction kettle by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287080.7A CN107014641B (en) | 2017-04-27 | 2017-04-27 | Automatic sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287080.7A CN107014641B (en) | 2017-04-27 | 2017-04-27 | Automatic sampling device |
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| CN107014641A CN107014641A (en) | 2017-08-04 |
| CN107014641B true CN107014641B (en) | 2023-06-27 |
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| CN201710287080.7A Active CN107014641B (en) | 2017-04-27 | 2017-04-27 | Automatic sampling device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482122A (en) * | 2018-12-05 | 2019-03-19 | 威海天宇新材料科技有限公司 | Enamel electric heating reacting kettle |
| CN110204019B (en) * | 2019-05-06 | 2021-07-06 | 杭州科晟能源技术有限公司 | Full-automatic accurate dosing system of circulating water |
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Effective date of registration: 20210521 Address after: 311200 Chuanfang village, Suoqian Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Hongli Machinery Manufacturing Co.,Ltd. Address before: 314500 room 505, 11 standard workshops, plot a-02, phase II Industrial Zone, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Applicant before: JIAXING HONGLI MACHINERY Co.,Ltd. |
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