CN113484096A - Full-automatic closed sampling system of reation kettle - Google Patents
Full-automatic closed sampling system of reation kettle Download PDFInfo
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- CN113484096A CN113484096A CN202110911901.6A CN202110911901A CN113484096A CN 113484096 A CN113484096 A CN 113484096A CN 202110911901 A CN202110911901 A CN 202110911901A CN 113484096 A CN113484096 A CN 113484096A
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- 238000005070 sampling Methods 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 239000000523 sample Substances 0.000 claims abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 25
- 238000010926 purge Methods 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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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
- G01N2001/1031—Sampling from special places
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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
- G01N2001/1418—Depression, aspiration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Biochemistry (AREA)
- Analytical Chemistry (AREA)
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses a full-automatic reaction kettle closed sampling system which comprises a material sucking component, a liquid level monitoring component, a circulating sampling component, a vacuum adsorption component, a nitrogen purging component, a pH value measuring component and a PLC (programmable logic controller) control component. This airtight sampling system of full-automatic reation kettle is through increasing pneumatic control valve, increase the liquid level control unit, through PLC control, can realize one-key formula operation, utilize vacuum assistance to inhale the material simultaneously and make the circulating pump action, thereby it is unanimous to realize liquid and reation kettle interior liquid characteristic in the sampling system, draw required detection liquid smoothly, bayonet PH probe can provide the relevant PH value of liquid in the reation kettle often, not only has the structure succinctly, and easy operation, set up rationalization, and the sample is truer moreover, safety and reliability, and can realize the reation kettle sample of large capacity.
Description
Technical Field
The invention relates to the technical field of chemical and pharmaceutical sampling, in particular to a full-automatic reaction kettle closed sampling system.
Background
When using analytical instruments to determine the composition and content of a material to be measured, the material must be removed from the process piping or vessel and transported to the instrument, a device known as a sampling system. The sampling system is required to take out samples quickly, and the samples are real and representative so as to obtain more accurate detection results to guide production.
The existing domestic sampling system for the reaction kettle is not available for selection of special equipment, and no professional manufacturer produces the sampling device in the domestic market. When most chemical enterprises need take a sample to the medium in the reation kettle, adopt manual simple and easy sampler or inhale the direct required sample of interior absorption of material pipe from reation kettle basically, sampling device and mode are comparatively crude and fall behind.
Therefore, the existing closed reaction kettle sampling system also has some defects and potential safety hazards: (1) the existing sampling system adopts manual operation, combines a diaphragm pump to carry out internal circulation, and arranges a sampling valve in a flow passage pipe to extract a liquid sample in a reaction kettle, so that the consistency of the characteristics of the sampled liquid and the liquid in the reaction kettle is difficult to ensure, and certain operation control risks exist; (2) if the reaction kettle is a medium which is toxic, harmful, corrosive, volatile or capable of reacting with air, the whole sampling process is dangerous and can cause injury to operators, and meanwhile, the medium in the reaction kettle is contacted with the air to react, so that the sampling medium is inaccurate and the reaction is dangerous; (3) the sampling of the existing circulating pump can only provide about 3M of suction, and cannot meet the sampling requirement of a large-volume reaction kettle; (4) the existing sampling system does not have a pH meter, and cannot rapidly read the pH value of a test sample.
Disclosure of Invention
In order to overcome the defects, the invention provides a full-automatic closed reaction kettle sampling system, which can realize full-automatic sampling through PLC control, simultaneously ensure that the characteristics of related liquid in the sampling system and liquid in a reaction kettle are consistent, quickly and quickly carry out sampling operation, and an inserted PH meter can constantly provide the related PH value of the liquid in the reaction kettle.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a fully-automatic closed reaction kettle sampling system comprises:
the material suction assembly is provided with a connecting pipe and a material suction sleeve which is arranged in the connecting pipe and extends out of the lower end of the connecting pipe, a material suction pipe is arranged in the material suction sleeve, a pipe orifice at the lower end of the connecting pipe is hermetically connected with a pipe orifice at the upper end of the reaction kettle to be sampled, and a pipe orifice at the upper end of the connecting pipe is hermetically connected on a lower connector of the three-way connecting piece;
the liquid level detection assembly is provided with a material suction cavity, and a pipe orifice at the lower end of the material suction cavity is hermetically connected to an upper connector of the three-way connecting piece through a first manual valve; the upper end of the material suction cavity is provided with a four-way connecting piece and is connected to the lower connector of the four-way connecting piece in a sealing manner; a sight glass is arranged in the middle of the material suction cavity, and a probe B and a probe A are respectively arranged above and below the material suction cavity;
the circulating sampling assembly is provided with a branch connecting pipe, the upper end of the branch connecting pipe is hermetically connected to one side interface of the four-way connecting piece through a circulating pump, and the lower end of the branch connecting pipe is hermetically connected to the side interface of the three-way connecting piece; the upper end of the branch connecting pipe is provided with a circulating pump electromagnetic valve for controlling the opening and closing of the circulating pump, and the lower end of the branch connecting pipe is sequentially provided with a second manual valve and a sampling valve from the position close to the three-way connecting piece;
the vacuum adsorption assembly is provided with a vacuum connecting pipe, one end of the vacuum connecting pipe is hermetically connected to the other side interface of the four-way connecting piece through a first pneumatic control valve, and the other end of the vacuum connecting pipe is provided with a second pneumatic control valve and is used for connecting vacuum-pumping equipment;
the nitrogen purging assembly is provided with a nitrogen purging connecting pipe used for being connected with a nitrogen source, a third pneumatic control valve used for controlling the opening and closing of the nitrogen purging connecting pipe is arranged on the nitrogen purging connecting pipe, and the nitrogen purging connecting pipe is connected to the upper connector of the four-way connecting piece;
the PH value measuring component is provided with an inserted PH probe, and the inserted PH probe is arranged above the material suction cavity and connected with the four-way connecting piece;
the PLC control assembly is provided with a PLC controller, proximity switches are respectively arranged on the first manual valve and the second manual valve, and the probe A, the probe B, the circulating pump electromagnetic valve, the first pneumatic control valve, the second pneumatic control valve, the third pneumatic control valve, the proximity switch of the first manual valve, the proximity switch of the second manual valve and the plug-in PH probe are respectively connected to the PLC controller;
the tail ends of the material suction pipe and the material suction sleeve are inserted into the bottom of the reaction kettle; and the side interface of the three-way connecting piece and one side interface of the four-way connecting piece which are respectively connected with the upper end and the lower end of the branch connecting pipe are positioned at the same side of the three-way connecting piece and the four-way connecting piece.
As a further improvement of the invention, the sampling valve comprises a sampling port positioned at the lower part and a knob positioned at the upper part and used for controlling the opening and the closing of the sampling port.
As a further improvement of the invention, the PLC control assembly is also provided with a display device for displaying the working state and related data of each assembly.
As a further improvement of the invention, the sight glass is transparent glass.
As a further improvement of the invention, the bottom of the circulating pump is supported at the upper end of a Z-shaped bracket, and the lower end of the Z-shaped bracket is sleeved on the material suction cavity.
As a further improvement of the present invention, the first manual valve and the second manual valve are respectively provided with a proximity switch, and the proximity switches are respectively connected with the PLC control assembly.
As a further improvement of the invention, the upper end of the connecting pipe is provided with an upper flange, the lower end of the connecting pipe is provided with a lower flange, and the lower flange is fixedly connected with the connecting flange of the upper pipe orifice of the reaction kettle.
The invention has the beneficial effects that: this airtight sampling system of full-automatic reation kettle is through increasing pneumatic control valve, increase the liquid level control unit, through PLC control, can realize one-key formula operation, utilize vacuum assistance to inhale the material simultaneously and make the circulating pump action, thereby it is unanimous to realize liquid and reation kettle interior liquid characteristic in the sampling system, draw required detection liquid smoothly, bayonet PH probe can provide the relevant PH value of liquid in the reation kettle often, not only has the structure succinctly, and easy operation, set up rationalization, and the sample is truer moreover, safety and reliability, and can realize the reation kettle sample of large capacity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 from another perspective;
FIG. 3 is a schematic diagram of the internal cross-sectional structure of the present invention.
The following description is made with reference to the accompanying drawings:
100-reaction kettle; 101-connecting flange;
11-connecting tube; 12-a suction pipe;
13-suction sleeve; 14-three-way connection;
21-suction cavity; 22-four-way connection piece;
23-Probe B; 24-sight glass;
25-Probe A; 26-first manual valve;
31-branch connection pipe; 32-circulation pump;
33-circulating pump solenoid valve; 34-second manual valve;
35-sampling valve; 36-a Z-shaped bracket;
41-vacuum connection pipe; 42-first pneumatic control valve;
43-second pneumatic control valve; 51-nitrogen purge connecting tube;
52-third pneumatic control valve; 27-insert PH probe;
111-upper flange; 112 — lower flange.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-3, the fully automatic closed reaction kettle sampling system according to the present invention mainly comprises a material suction assembly, a liquid level monitoring assembly, a cyclic sampling assembly, a vacuum adsorption assembly, a nitrogen purging assembly, a PH value measuring assembly and a PLC control assembly, which are respectively described in detail below.
Wherein, inhale the material subassembly, should inhale the material subassembly and have connecting pipe 11 and locate it and from inhaling material sleeve pipe 13 that its lower extreme extends out, inhale and be equipped with in the material sleeve pipe 13 and inhale material pipe 12, the lower extreme mouth of pipe of connecting pipe 11 and the upper end mouth of pipe sealing connection of the reation kettle 100 who treats the sample, the upper end mouth of pipe sealing connection of connecting pipe 11 is on three way connection 14's lower interface.
The liquid level monitoring assembly is provided with a material suction cavity 21, and a lower end pipe orifice of the material suction cavity 21 is hermetically connected to an upper connector of the three-way connecting piece 14 through a first manual valve 26; the upper end of the material suction cavity 21 is hermetically connected to the lower connector of the four-way connecting piece 22; the middle part of the material suction cavity 21 is provided with a sight glass 24, and a probe B23 and a probe A25 are respectively arranged above and below the material suction cavity 21.
The cyclic sampling assembly is provided with a branch connecting pipe 31, the upper end of the branch connecting pipe 31 is hermetically connected to one side interface of the four-way connecting piece 22, and the lower end of the branch connecting pipe 31 is hermetically connected to the testing interface of the three-way connecting piece 14; a circulation pump 32 and a circulation pump electromagnetic valve 33 for controlling the opening and closing of the circulation pump 32 are arranged on the upper end of the branch connecting pipe 31; the branch connection pipe 31 is provided at its lower end with a second manual valve 34 and a sampling valve 35 in this order from the vicinity of the three-way connection 14.
The vacuum adsorption assembly has a vacuum connection pipe 41, and one end of the vacuum connection pipe 41 is hermetically connected to the other side port of the four-way connection 22 by a first pneumatic control valve 42, i.e., the first pneumatic control valve 42, the vacuum connection pipe 41, and a second pneumatic control valve 43 are sequentially provided from the vicinity of the four-way connection 22.
And the nitrogen purging assembly is provided with a nitrogen purging connecting pipe 51 for connecting with a nitrogen source, and one end of the nitrogen purging connecting pipe 51 is hermetically connected to the upper connector of the four-way connecting piece 22 through a third pneumatic control valve 53.
The PH value measuring component is provided with an insertion type PH probe 27, is arranged above the material suction cavity 21 and is connected with the four-way connecting piece 22, can detect the PH value of liquid in real time, and can display detection data on a control panel.
And a PLC control assembly which is provided with a PLC controller, wherein the first manual valve (26) and the second manual valve (34) are respectively provided with a proximity switch, and the probe A25, the probe B23, the circulating pump electromagnetic valve 33, the first pneumatic control valve 42, the second pneumatic control valve 43, the third pneumatic control valve 52, the proximity switch of the first manual valve (26), the proximity switch of the second manual valve (34) and the plug-in PH probe (27) are respectively connected to the PLC controller.
Wherein, the upper end of the connecting pipe 11 is provided with an upper flange 111, the lower end is provided with a lower flange 112, and the lower flange 112 is fixedly connected with the connecting flange 101 of the upper end pipe orifice of the reaction kettle 100. The ends of the material suction pipe 12 and the material suction sleeve 13 are inserted into the bottom of the reaction kettle 100, so as to facilitate the extraction of the liquid. The side interface of the three-way connection member 14 and one of the side interfaces of the four-way connection member 22, which are respectively connected with the upper end and the lower end of the branch connection pipe 31, are located at the same side of the three-way connection member 14 and the four-way connection member 22, so that the position of the branch connection pipe 31 can be conveniently set.
The PLC control assembly is also provided with a display device for displaying the working state and related data of each assembly. Wherein, the sight glass is transparent glass, and the bottom of circulating pump 32 supports in the upper end of zigzag support 36, and the lower extreme cover of this zigzag support 36 is placed on inhaling material chamber 21 to better support circulating pump 32.
The work flow of the full-automatic reaction kettle closed sampling system is as follows:
step 1, in the reaction process of the reaction kettle, a control box button is turned on, namely a PLC control assembly is turned on, and the system activates a liquid level probe A25, a probe B23, a proximity switch of a first manual valve 26, a proximity switch of a second manual valve 34, a plug-in PH meter and related nitrogen purging, vacuum suction, circulation system functions and the like.
And step 2, manually opening the first manual valve 26 and the second manual valve 34, and sending signals to the PLC control assembly after proximity switches on the first manual valve and the second manual valve sense the signals.
And 3, opening the third pneumatic control valve 52 by the PLC control assembly, opening the nitrogen purging connecting pipe 51, performing nitrogen purging (at least 15S) on the whole system to remove residual liquid in the system, and closing the third pneumatic control valve 52 after the purging is finished.
And 4, after the system delays for 1-5 seconds, opening the first pneumatic control valve 42 and the second pneumatic control valve 43, opening the vacuum connecting pipe 41, and pumping the liquid in the reaction kettle by using a vacuum system externally connected with the vacuum connecting pipe 41 and a material suction pipe 12 arranged at the bottom of the reaction kettle 100 and in the material suction sleeve 13.
And 5, after the liquid in the reaction kettle is sucked by the vacuum system, the liquid firstly reaches the connecting pipe 11, then the liquid rises into the material sucking cavity 21 and reaches the sight glass 24, when the liquid passes through the probe A25, the PLC opens a circulating pump electromagnetic valve 33 for controlling the circulating pump 32, starts the circulating pump 32 to work, and simultaneously closes the first pneumatic control valve 42, namely, closes the vacuum system, and the liquid moves under the action of the circulating pump 32.
In step 6, when the liquid passes through the probe B23, the second pneumatic control valve 43 is closed, and a double safety is set for the vacuum system, so that the first pneumatic control valve 42 is prevented from being failed.
Step 7, liquid in the reaction kettle forms circulation between the material suction pipe 12, the material suction cavity 21, the branch connecting pipe 31 and the reaction kettle 100 through the action of the circulating pump 32, so that the liquid passing through the branch connecting pipe 31 is ensured to be consistent with the liquid characteristic in the reaction kettle, the authenticity of a sample is ensured, and meanwhile, the PH value is fed back on the display panel of the control box by the plug-in PH probe 27 at any time.
And 8, opening the sampling valve 35 to perform online sampling.
And 9, finishing sampling, and closing the sampling assembly.
In step 10, the circulation pump electromagnetic valve 33 is closed to stop the circulation pump operation.
And 11, opening the third pneumatic control valve 52, performing nitrogen purging on the system (for at least 15S), and purging the residual liquid in the system into the reaction kettle.
In step 12, the first manual valve 26 and the second manual valve 34 are closed, and a signal is sent to the PLC through the proximity switch.
And step 13, stopping the PLC, closing the sampling system and completing one-time online sampling.
The full-automatic closed reaction kettle sampling system is characterized in that nitrogen is firstly arranged to blow and clean the system before sampling so as to remove residual liquid in the system and avoid the sampled liquid from being polluted, then a vacuum system is utilized to pump liquid into a material suction pipe and a material suction cavity, a corresponding liquid level monitoring assembly is arranged after the liquid reaches the material suction cavity, the liquid level monitoring assembly can be observed in time through a sight glass, and can be accurately monitored in time through a probe A and a probe B and feed back the liquid level condition to a PLC (programmable logic controller), the PLC closes a first pneumatic control valve and a second pneumatic control valve in time according to received signals and opens a circulating pump, so that a closed circulating channel is formed by the two main pipes, the two branch connecting pipes and the liquid in the reaction kettle, the circulation of the liquid is realized through the circulating pump, the liquid flowing through the sampling valves and the liquid in the reaction kettle are completely consistent, the authenticity and the accuracy of sampling are ensured, and the liquid is blown back to the reaction kettle by utilizing nitrogen again after sampling is completed, the whole process is controlled by a PLC, the whole process is automatic, the operation is simple, and the sampling is real and accurate.
Therefore, this airtight sampling system of full-automatic reation kettle increases the liquid level control unit through increasing pneumatic control valve, through PLC control, can realize a key formula operation, utilize vacuum assistance to inhale the material simultaneously and make the circulating pump action, thereby it is unanimous to realize liquid characteristic in liquid and the reation kettle in the sampling system, draw required detection liquid smoothly, bayonet PH probe can provide the relevant PH value of liquid in the reation kettle often, not only has the structure succinct, and the operation is thus simple, set up rationalization, and the sample is truer, safety and reliability, and can realize the reation kettle sample of large capacity.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a full-automatic reation kettle seals sampling system which characterized in that includes:
the material suction assembly is provided with a connecting pipe (11) and a material suction sleeve (13) which is arranged in the connecting pipe and extends out of the lower end of the connecting pipe, a material suction pipe (12) is arranged inside the material suction sleeve (13), the lower end pipe orifice of the connecting pipe (11) is hermetically connected with the upper end pipe orifice of a reaction kettle (100) to be sampled, and the upper end pipe orifice of the connecting pipe (11) is hermetically connected to the lower connector of a three-way connecting piece (14);
the liquid level monitoring assembly is provided with a material suction cavity (21), and a lower end pipe orifice of the material suction cavity (21) is hermetically connected to an upper connector of the three-way connecting piece (14) through a first manual valve (26); the upper end of the material suction cavity (21) is provided with a four-way connecting piece (22) and is hermetically connected to the lower interface of the four-way connecting piece (22); a sight glass (24) is arranged in the middle of the material suction cavity (21), and a probe B (23) and a probe A (25) are respectively arranged above and below the material suction cavity (21);
the circulation sampling assembly is provided with a branch connecting pipe (31), the upper end of the branch connecting pipe (31) is hermetically connected to one side interface of the four-way connecting piece (22) through a circulation pump (32), and the lower end of the branch connecting pipe is hermetically connected to the side interface of the three-way connecting piece (14); a circulating pump electromagnetic valve (33) for controlling the opening and closing of the circulating pump (32) is arranged at the upper end of the branch connecting pipe (31), and a second manual valve (34) and a sampling valve (35) are sequentially arranged at the lower end from the position close to the three-way connecting piece (14);
the vacuum adsorption assembly is provided with a vacuum connecting pipe (41), one end of the vacuum connecting pipe (41) is hermetically connected to the other side interface of the four-way connecting piece (22) through a first pneumatic control valve (42), and the other end of the vacuum connecting pipe is provided with a second pneumatic control valve (43) and is used for connecting vacuum pumping equipment;
the nitrogen purging assembly is provided with a nitrogen purging connecting pipe (51) connected with a nitrogen source, a third pneumatic control valve (52) for controlling the opening and closing of the nitrogen purging connecting pipe (51) is arranged on the nitrogen purging connecting pipe (51), and the nitrogen purging connecting pipe (51) is connected to an upper connector of the four-way connecting piece (22);
the PH value measuring assembly is provided with an inserted PH probe (27), and the inserted PH probe (27) is arranged above the material suction cavity (21) and is connected with the four-way connecting piece (22);
the PLC control assembly is provided with a PLC controller, proximity switches are respectively arranged on the first manual valve (26) and the second manual valve (34), and the probe A (25), the probe B (23), the circulating pump electromagnetic valve (33), the first pneumatic control valve (42), the second pneumatic control valve (43), the third pneumatic control valve (52), the proximity switch of the first manual valve (26), the proximity switch of the second manual valve (34) and the plug-in PH probe (27) are respectively connected to the PLC controller;
the tail ends of the material suction pipe (12) and the material suction sleeve (13) are inserted into the bottom of the reaction kettle (100); and the side interface of the three-way connecting piece (14) and one side interface of the four-way connecting piece (22) which are respectively connected with the upper end and the lower end of the branch connecting pipe (31) are positioned on the same side of the three-way connecting piece (14) and the four-way connecting piece (22).
2. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: the sampling valve (35) comprises a sampling port positioned at the lower part and a knob positioned at the upper part and used for controlling the opening and the closing of the sampling port.
3. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: the PLC control assembly is also provided with a display device for displaying the working state and related data of each assembly.
4. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: the sight glass is transparent glass.
5. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: the bottom of the circulating pump (32) is supported at the upper end of a Z-shaped support (36), and the lower end of the Z-shaped support (36) is sleeved on the material suction cavity (21).
6. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: and proximity switches are respectively arranged on the first manual valve (26) and the second manual valve (34), and are respectively connected with the PLC control component.
7. The fully automatic closed reaction kettle sampling system according to claim 1, characterized in that: the upper end of the connecting pipe (11) is provided with an upper flange (111), the lower end of the connecting pipe is provided with a lower flange (112), and the lower flange (112) is fixedly connected with a connecting flange (101) of the upper end pipe orifice of the reaction kettle (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911901.6A CN113484096B (en) | 2021-08-10 | 2021-08-10 | Full-automatic closed sampling system for reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110911901.6A CN113484096B (en) | 2021-08-10 | 2021-08-10 | Full-automatic closed sampling system for reaction kettle |
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| CN113484096A true CN113484096A (en) | 2021-10-08 |
| CN113484096B CN113484096B (en) | 2024-03-29 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2260097A1 (en) * | 1974-02-01 | 1975-08-29 | Singer Ernst | Sampling appts. with air-purged tubes - for liqs. with or without solids |
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| CN212568098U (en) * | 2020-07-28 | 2021-02-19 | 靖江市摩尔化工设备有限公司 | Low-loss risk improved reaction kettle airtight online sampler |
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2021
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| FR2260097A1 (en) * | 1974-02-01 | 1975-08-29 | Singer Ernst | Sampling appts. with air-purged tubes - for liqs. with or without solids |
| CN203824802U (en) * | 2014-04-17 | 2014-09-10 | 上海炼升化工股份有限公司 | Sampling device used under vacuum state of reaction kettle |
| CN205826365U (en) * | 2016-07-29 | 2016-12-21 | 江苏强盛功能化学股份有限公司 | Vacuum response still liquid sampler |
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| CN208125438U (en) * | 2018-03-19 | 2018-11-20 | 江苏大力士投资有限公司 | A kind of pipeline self-cleaning epoxy AB glue reaction kettle sampler |
| CN209432505U (en) * | 2018-12-07 | 2019-09-24 | 浙江省天正设计工程有限公司 | Sealing and circulating sampler for liquid sampling poisonous and harmful in container analysis |
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| CN211954830U (en) * | 2020-04-10 | 2020-11-17 | 南京埃佳氟流体控制有限公司 | Automatic high-matching type closed sampling system |
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| CN212206756U (en) * | 2020-06-23 | 2020-12-22 | 郑州铁路职业技术学院 | Vacuum extraction device for chemical organic synthesis |
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| CN113484096B (en) | 2024-03-29 |
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