CN204595631U - A kind of pH control system for the synthesis of ternary material precursor - Google Patents
A kind of pH control system for the synthesis of ternary material precursor Download PDFInfo
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- CN204595631U CN204595631U CN201520326576.7U CN201520326576U CN204595631U CN 204595631 U CN204595631 U CN 204595631U CN 201520326576 U CN201520326576 U CN 201520326576U CN 204595631 U CN204595631 U CN 204595631U
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Abstract
The utility model relates to field of industrial automation control, particularly disclose a kind of pH control system for the synthesis of ternary material precursor, it comprises the reactor that power distribution cabinet is connected with pipeline successively, pump and alkali liquid tank, it is characterized in that: also comprise online pH meter, PID controller and solid-state relay, wherein online pH meter, input circuit in PID controller and solid-state relay is composed in series signal control circuit, power supply and the time switch of circuit connection is provided with in described power distribution cabinet, after the output loop of described solid-state relay and series connection of pumps again with online pH meter, PID controller is in parallel, then power circuit is composed in series with time switch again, the electrode of described online pH meter is positioned at reactor, the electric wire used in described circuit is shielding line.The utility model adopts Automated condtrol reactor pH value, greatly reduces human factor to while the impact of system pH, improve reactive system pH stability, decreases the consumption of manpower.
Description
(1) technical field
The utility model relates to field of industrial automation control, particularly a kind of pH control system for the synthesis of ternary material precursor.
(2) background technology
Lithium ion battery is a kind of novel secondary cell, the clear superiority such as specific energy is high, cycle period is long owing to self having, discharge stability is good, environmental pollution is little and potentiality to be exploited is large, now become an emphasis direction of global energy industry development and exploitation, be widely used in the fields such as consumer product, digital products, power product, medical treatment and security protection.Positive electrode plays very important effect in lithium ion battery, therefore, the exploitation development of positive electrode is particularly rapid, ternary material, advantage of lower cost high with energy density and cycle performance is excellent etc. that feature becomes the most promising one with the largest potentiality in many positive electrodes again.
But the synthesis influence factor of ternary material precursor is various, wherein pH value is especially obvious on the impact of properties of product, and therefore, in the process of synthesis of ternary material, it is particularly crucial that the pH value controlled in reactor shows.Practical study is with in production, and because various factors causes pH value auto-control degree in reactor low, in reactor, pH value fluctuation is large, result in particle growth uneven, and product quality can not get ensureing, is in a disadvantageous position in market with keen competition.
(3) summary of the invention
The utility model, in order to make up the defect of prior art, provides a kind of precise control, the time saving and energy saving pH control system for the synthesis of ternary material precursor.
The utility model is achieved by the following technical solution:
A kind of pH control system for the synthesis of ternary material precursor, comprise the reactor that power distribution cabinet is connected with pipeline successively, pump and alkali liquid tank, it is characterized in that: also comprise online pH meter, PID controller and solid-state relay, wherein online pH meter, input circuit in PID controller and solid-state relay is composed in series signal control circuit, power supply and the time switch of circuit connection is provided with in described power distribution cabinet, after the output loop of described solid-state relay and series connection of pumps again with online pH meter, PID controller is in parallel, then power circuit is composed in series with time switch again, the electrode of described online pH meter is positioned at reactor, the electric wire used in described signal control circuit and power circuit is shielding line.
The beneficial effects of the utility model are:
1, adopt the pH value of the good control system of this pH value control system energy, pH value control accuracy is ± 0.01, for the ternary material precursor of synthesizing high-quality is laid a good foundation.
2, adopt Automated condtrol reactor pH value, greatly reduce human factor to while the impact of system pH, improve reactive system pH stability, decrease the consumption of manpower.Set up time switch, while reducing energy consumption, also eliminate potential safety hazard.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
In figure, 1 pipeline, 2 reactors, 3 pumps, 4 alkali liquid tanks, 5 time switches, 6 power supplys, 7 online pH meters, 71 electrodes, 8 PID controller, 9 solid-state relays, 10 electric wires.
(5) embodiment
Accompanying drawing is specific embodiment of the utility model.As Fig. 1, shown in Fig. 2, this kind is for the synthesis of the pH control system of ternary material precursor, comprise the reactor 2 that power distribution cabinet is connected with pipeline 1 successively, pump 3 and alkali liquid tank 4, also comprise online pH meter 7, PID controller 8 and solid-state relay 9, wherein online pH meter 7, input circuit in PID controller 8 and solid-state relay 9 is composed in series signal control circuit, power supply 6 and the time switch 5 of circuit connection is provided with in power distribution cabinet, as shown in Figure 2, the output loop of solid-state relay 9 after connecting with pump 3 again with online pH meter 7, PID controller 8 is in parallel, then power circuit is composed in series with time switch 5 again, the electrode 71 of online pH meter 7 is positioned at reactor 2, the electric wire 10 used in signal control circuit and power circuit is shielding line.
Because the electrode of online pH meter 7 is positioned at reactor 2, it can the pH value of solution in Real-Time Monitoring reactor 2, and pH value is converted to analog signals and passes to PID controller 8, PID controller 8 is by analyzing the marking current of input, through the computing of PID controller 8 process, start stop signal is flowed to solid-state relay 9 by the solid-state relay output module of PID controller 8, namely SSR, the start and stop of solid-state relay 9 control pump 3, by the start-stop time in control pump 3 unit interval than carrying out the alkali lye amount that pumps in reactor 2 of control pump 3, thus the pH value controlled in reactor 2.After reaction terminates, time switch cuts off the power supply of online pH meter 7, PID controller 8 and pump 3 automatically.
Except technical characteristic described in instructions, all the other technical characteristics are those skilled in the art's known technology.
Claims (1)
1. the pH control system for the synthesis of ternary material precursor, comprise the reactor (2) that power distribution cabinet is connected with pipeline successively, pump (3) and alkali liquid tank (4), it is characterized in that: also comprise online pH meter (7), PID controller (8) and solid-state relay (9), wherein online pH meter (7), input circuit in PID controller (8) and solid-state relay (9) is composed in series signal control circuit, power supply (6) and the time switch (5) of circuit connection is provided with in described power distribution cabinet, the output loop of described solid-state relay (9) after connecting with pump (3) again with online pH meter (7), PID controller (8) is in parallel, then power circuit is composed in series with time switch (5) again, the electrode (71) of described online pH meter (7) is positioned at reactor (2), the electric wire (10) used in described signal control circuit and power circuit is shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326576.7U CN204595631U (en) | 2015-05-20 | 2015-05-20 | A kind of pH control system for the synthesis of ternary material precursor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520326576.7U CN204595631U (en) | 2015-05-20 | 2015-05-20 | A kind of pH control system for the synthesis of ternary material precursor |
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| CN204595631U true CN204595631U (en) | 2015-08-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200705A (en) * | 2016-08-22 | 2016-12-07 | 淮阴工学院 | A kind of cultivating pool pH value control system of wireless sensor network |
| CN107902703A (en) * | 2017-11-06 | 2018-04-13 | 淮安新能源材料技术研究院 | A kind of method for preparing nickel-cobalt-manganternary ternary anode material presoma |
| CN107983288A (en) * | 2018-01-03 | 2018-05-04 | 常州九朝新能源科技有限公司 | On-line monitoring intelligent linkage reaction kettle |
| CN108336314A (en) * | 2017-12-08 | 2018-07-27 | 华友新能源科技（衢州）有限公司 | A kind of ternary precursor high-precision synthesis control method |
-
2015
- 2015-05-20 CN CN201520326576.7U patent/CN204595631U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200705A (en) * | 2016-08-22 | 2016-12-07 | 淮阴工学院 | A kind of cultivating pool pH value control system of wireless sensor network |
| CN106200705B (en) * | 2016-08-22 | 2018-01-26 | 淮阴工学院 | A kind of cultivating pool pH value control system of wireless sensor network |
| CN107902703A (en) * | 2017-11-06 | 2018-04-13 | 淮安新能源材料技术研究院 | A kind of method for preparing nickel-cobalt-manganternary ternary anode material presoma |
| CN107902703B (en) * | 2017-11-06 | 2020-04-03 | 淮安新能源材料技术研究院 | Method for preparing nickel-cobalt-manganese ternary cathode material precursor |
| CN108336314A (en) * | 2017-12-08 | 2018-07-27 | 华友新能源科技（衢州）有限公司 | A kind of ternary precursor high-precision synthesis control method |
| CN107983288A (en) * | 2018-01-03 | 2018-05-04 | 常州九朝新能源科技有限公司 | On-line monitoring intelligent linkage reaction kettle |
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