CN102937817A - Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker - Google Patents
Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker Download PDFInfo
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- CN102937817A CN102937817A CN2012104757219A CN201210475721A CN102937817A CN 102937817 A CN102937817 A CN 102937817A CN 2012104757219 A CN2012104757219 A CN 2012104757219A CN 201210475721 A CN201210475721 A CN 201210475721A CN 102937817 A CN102937817 A CN 102937817A
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Abstract
The invention discloses a stationary temperature and constant air pressure control device and method of a lithium ion battery pole piece drying baker. The device comprises a drying box, wherein an exhaust duct of the drying box is connected with an exhaust fan; an air inlet channel of the drying box is connected with a temperature buffering box, and the air inlet channel of the temperature buffering box is connected with an air inlet fan; the temperature buffering box is internally provided with a heat exchanger, an air outlet thermometer and a temperature PID controller which adjusts the heat exchanger so as to enable the temperature inside the drying box to be stationary according to the air outlet temperature measured by the air outlet thermometer; a barometer is arranged on the drying box, and the air inlet channel of the temperature buffering box is provided with an air inlet thermometer; the device also comprises a controller which calculates and adjusts the rotation speed of the air inlet fan according to the temperature value measured by the air inlet thermometer and the set temperature and air volume of the drying box; and the controller controls the rotating speed of the exhaust fan so as to adjust the air pressure in the drying box according to the air pressure value measured by the barometer, so that the air pressure in the drying box is in a constant state. According to the invention, stationary temperature and constant air pressure in the drying box can be ensured effectively without being influenced by variation of an external environment temperature.
Description
Technical field
The present invention relates to electrodes of lithium-ion batteries drying technology field, particularly a kind of stationary temperature of electrodes of lithium-ion batteries drying baker and permanent Pneumatic controller and control method.
Background technology
Lithium ion battery have voltage height, specific energy high, recycle often, the advantage such as storage time is long, not only on portable electric appts, be used widely such as mobile phone, Digital Video and laptop computer, and be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, therefore more and more higher to the performance requirement of lithium ion battery.
In order to guarantee the consistance of performance of lithium ion battery, require harshness for the electrodes of lithium-ion batteries drying course, require the temperature of each baking oven and air pressure constant.
Because the variation with season and weather of ambient temperature and air pressure changes, existing control method needs the modes such as the position of the continuous adjusting air valve of personnel and new wind air quantity to regulate.Loaded down with trivial details, the waste of manpower of this process, and be difficult to reach temperature and the constant technical requirement of air pressure, and then affected product quality.
Summary of the invention
The object of the present invention is to provide a kind of stationary temperature and permanent Pneumatic controller and control method of electrodes of lithium-ion batteries drying baker, can realize stationary temperature and the control of permanent air pressure of electrodes of lithium-ion batteries drying baker.
For realizing above-mentioned purpose, the technical solution adopted in the present invention is as follows:
A kind of stationary temperature of electrodes of lithium-ion batteries drying baker and permanent Pneumatic controller comprise drying baker, and the wind output channel of described drying baker connects an exhaust fan; The air intake passage of described drying baker connects a temperature buffer case, and the wind inlet channel of described temperature buffer case connects air intake blower fan; Establish a heat interchanger, a leaving air temp meter in the described temperature buffer case and regulate described heat interchanger so that described oven dry the temperature inside the box keeps stationary temperature PID controller according to the leaving air temp of a described leaving air temp instrumentation amount; Establish a rain glass on the described drying baker, the wind inlet channel place of described temperature buffer case establishes an EAT meter, also comprises a controller, is used for the temperature value according to described EAT instrumentation amount, in conjunction with design temperature and the air quantity of described drying baker, calculate and regulate the rotating speed of described air intake blower fan; According to the atmospheric pressure value that described rain glass is measured, the output control signal is controlled the rotating speed of described exhaust fan and is regulated described drying baker internal gas pressure, makes described drying baker internal gas pressure keep stablizing a pressure constant state.
Described controller is the PLC controller.
Be filled with the conduction oil medium in the described heat interchanger.
The object of the invention also is to provide a kind of stationary temperature of described electrodes of lithium-ion batteries drying baker and stationary temperature and permanent air pressure control method that permanent Pneumatic controller is realized the electrodes of lithium-ion batteries drying baker of utilizing, and realizes by following steps:
Described controller is according to the temperature value of described EAT instrumentation amount, and structure drying baker design temperature and air quantity calculate and regulate the rotating speed of air intake blower fan; According to the atmospheric pressure value that described rain glass is measured, the output control signal is controlled the rotating speed of described exhaust fan and is regulated described drying baker internal gas pressure, makes described drying baker internal gas pressure keep stablizing a pressure constant state;
Described temperature PID controller is regulated the flow of thermal medium in the described heat interchanger automatically according to the design temperature of described drying baker and the temperature value of described leaving air temp instrumentation amount, realizes that the leaving air temp of described temperature buffer case keeps constant.
The present invention is by measuring the wind-warm syndrome of outlet and inlet, utilize the volume of gas to vary with temperature relation, atmospheric pressure value in conjunction with described rain glass measurement, the air intake blower fan of drying baker and the rotating speed of exhaust fan are regulated control, and then control intake and exhaust air rate, guaranteed the stable of drying baker internal gas pressure; Utilize temperature PID controller system that oven dry the temperature inside the box is controlled, thereby simply and easily guarantee the constant of the interior temperature of ground baking oven and air pressure, and the impact that not changed by ambient temperature, staff labor intensity reduced.
Description of drawings
Figure 1 shows that the stationary temperature of the electrodes of lithium-ion batteries drying baker that the embodiment of the invention provides and the structural representation of permanent Pneumatic controller;
Among the figure: 1. air intake blower fan, 2. EAT meter, the 3. wind inlet channel of temperature buffer case, 4. heat interchanger, 5. leaving air temp meter, 6. temperature PID controller, 7. temperature buffer case, the 8. wind inlet channel of drying baker, 9. drying baker, 10. wind output channel, 11. exhaust fans, 12. rain glasss.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
Referring to shown in Figure 1, a kind of stationary temperature of electrodes of lithium-ion batteries drying baker and permanent Pneumatic controller comprise drying baker 9, and the wind output channel 10 of described drying baker 8 connects an exhaust fan 11; The air intake passage 8 of described drying baker 9 connects a temperature buffer case 7, and the wind inlet channel 3 of described temperature buffer case 7 connects air intake blower fan 1; Establish a heat interchanger 4, a leaving air temp meter 5 in the described temperature buffer case 7 and regulate described heat interchanger 4 so that described drying baker 9 interior temperature keep stationary temperature PID controllers 6 according to the leaving air temp that a described leaving air temp meter 5 is measured; Establish a rain glass 12 on the described drying baker 9, wind inlet channel 3 places of described temperature buffer case 7 establish an EAT meter 2, also comprise a controller, be used for the temperature value according to described EAT 2 instrumentation amounts, in conjunction with design temperature and the air quantity of described drying baker 9, calculate and regulate the rotating speed of described air intake blower fan 1; And the atmospheric pressure value of measuring according to described rain glass 12, the output control signal is controlled the rotating speed of described exhaust fan 11 and is regulated described drying baker 9 internal gas pressures, makes described drying baker 9 internal gas pressures keep stablizing a pressure constant state.
Described controller is the PLC controller.
Be filled with the conduction oil medium in the described heat interchanger 4.
The present invention also aims to provide a kind of stationary temperature and permanent air pressure control method that utilizes above-mentioned device to realize the electrodes of lithium-ion batteries drying baker, realize by following steps:
Described controller is according to the temperature value of described EAT instrumentation amount, and structure drying baker design temperature and air quantity calculate and regulate the rotating speed of air intake blower fan; According to the atmospheric pressure value that described rain glass is measured, the output control signal is controlled the rotating speed of described exhaust fan and is regulated described drying baker internal gas pressure, makes described drying baker internal gas pressure keep stablizing a pressure constant state;
Described temperature PID controller is regulated the flow of thermal medium in the described heat interchanger automatically according to the design temperature of described baking oven and the temperature value of described leaving air temp instrumentation amount, realizes that the leaving air temp of described temperature buffer case keeps constant.
Principle of work of the present invention is as follows:
1, according to volume and the temperature relation formula of gas: m=ρ * V; V=V
1* 273/(273+t
1); M is gaseous mass, and ρ is mechanical parameter pressure, and V is the geometry parameter volume; If require drying baker in the temperature t of output gas
Go outAnd air quantity (unit interval in gas volume V) is when constant, and the rotating speed of blower fan should be according to the temperature t of input gas
EnterRegulate; Formula is:
V
Enter=V
Go out* (273+t
Enter)/(273+t
Go out).
2, the temperature owing to input gas changes, if require the temperature constant of output gas, and must serviceability temperature PID regulator.
Described controller calculates and regulates described air intake blower fan 1 rotating speed according to EAT meter 2, described drying baker design temperature and air quantity, and then regulates the size of intake; Described temperature PID controller 6 can be according to the leaving air temp value of described drying baker design temperature and 5 measurements of described leaving air temp meter, automatically regulate the flow of heat kerosene in the described heat interchanger 4, the described controller of automatic control of realizing leaving air temp can be according to the atmospheric pressure value of rain glass 12, automatically regulate the rotating speed of described exhaust fan 11, make the atmospheric pressure value in the described drying baker be stabilized in a certain little negative pressure value.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the stationary temperature of an electrodes of lithium-ion batteries drying baker and permanent Pneumatic controller is characterized in that, comprise drying baker, and the wind output channel of described drying baker connects an exhaust fan; The air intake passage of described drying baker connects a temperature buffer case, and the wind inlet channel of described temperature buffer case connects air intake blower fan; Establish a heat interchanger, a leaving air temp meter in the described temperature buffer case and regulate described heat interchanger so that described oven dry the temperature inside the box keeps stationary temperature PID controller according to the leaving air temp of a described leaving air temp instrumentation amount; Establish a rain glass on the described drying baker, the wind inlet channel place of described temperature buffer case establishes an EAT meter, also comprises a controller, is used for the temperature value according to described EAT instrumentation amount, in conjunction with design temperature and the air quantity of described drying baker, calculate and regulate the rotating speed of described air intake blower fan; According to the atmospheric pressure value that described rain glass is measured, the output control signal is controlled the rotating speed of described exhaust fan and is regulated described drying baker internal gas pressure, makes described drying baker internal gas pressure keep stablizing a pressure constant state.
2. the stationary temperature of electrodes of lithium-ion batteries drying baker according to claim 1 and permanent Pneumatic controller is characterized in that, described controller is the PLC controller.
3. the stationary temperature of electrodes of lithium-ion batteries drying baker according to claim 2 and permanent Pneumatic controller is characterized in that, are filled with the conduction oil medium in the described heat interchanger.
4. stationary temperature and a permanent air pressure control method that utilizes the described device of claim 1 ~ 3 to realize the electrodes of lithium-ion batteries drying baker is characterized in that, realizes by following steps:
Described controller in conjunction with design temperature and the air quantity of described drying baker, calculates and regulates the rotating speed of described air intake blower fan according to the temperature value of described EAT instrumentation amount; According to the atmospheric pressure value that described rain glass is measured, the output control signal is controlled the rotating speed of described exhaust fan and is regulated described drying baker internal gas pressure, makes described drying baker internal gas pressure keep stablizing a pressure constant state;
Described temperature PID controller is regulated the flow of thermal medium in the described heat interchanger automatically according to the design temperature of described drying baker and the temperature value of described leaving air temp instrumentation amount, realizes that the leaving air temp of described temperature buffer case keeps constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475721.9A CN102937817B (en) | 2012-11-21 | 2012-11-21 | Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475721.9A CN102937817B (en) | 2012-11-21 | 2012-11-21 | Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker |
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| Publication Number | Publication Date |
|---|---|
| CN102937817A true CN102937817A (en) | 2013-02-20 |
| CN102937817B CN102937817B (en) | 2014-09-17 |
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| CN201210475721.9A Active CN102937817B (en) | 2012-11-21 | 2012-11-21 | Stationary temperature and constant air pressure control device and method of lithium ion battery pole piece drying baker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120314A (en) * | 2020-09-22 | 2020-12-25 | 上海誉甲自动化技术有限公司 | Temperature control clothes energy recycling device |
| CN113899194A (en) * | 2020-07-06 | 2022-01-07 | Sk新技术株式会社 | Secondary battery electrode plate drying method and drying system |
| CN118066845A (en) * | 2024-04-24 | 2024-05-24 | 江苏中科智芯集成科技有限公司 | Method and device for controlling gas in oven |
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| US4327162A (en) * | 1979-09-07 | 1982-04-27 | Varta Batterie Aktiengesellschaft | Battery terminal for high temperature batteries |
| CN102072620A (en) * | 2011-01-28 | 2011-05-25 | 福建南平南孚电池有限公司 | Vacuum baking oven for pole pieces of battery |
| CN201964742U (en) * | 2010-11-30 | 2011-09-07 | 广州能之原节能技术有限公司 | Intelligent energy-saving dryer for adjusting revolving speed of fan by feedback |
| CN102338550A (en) * | 2011-07-12 | 2012-02-01 | 深圳市沃特玛电池有限公司 | Drying device of battery pole shoe and drying method |
| CN102620543A (en) * | 2012-04-16 | 2012-08-01 | 惠州市博能新能源有限公司 | Drying system for lithium ion battery cores |
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2012
- 2012-11-21 CN CN201210475721.9A patent/CN102937817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327162A (en) * | 1979-09-07 | 1982-04-27 | Varta Batterie Aktiengesellschaft | Battery terminal for high temperature batteries |
| CN201964742U (en) * | 2010-11-30 | 2011-09-07 | 广州能之原节能技术有限公司 | Intelligent energy-saving dryer for adjusting revolving speed of fan by feedback |
| CN102072620A (en) * | 2011-01-28 | 2011-05-25 | 福建南平南孚电池有限公司 | Vacuum baking oven for pole pieces of battery |
| CN102338550A (en) * | 2011-07-12 | 2012-02-01 | 深圳市沃特玛电池有限公司 | Drying device of battery pole shoe and drying method |
| CN102620543A (en) * | 2012-04-16 | 2012-08-01 | 惠州市博能新能源有限公司 | Drying system for lithium ion battery cores |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899194A (en) * | 2020-07-06 | 2022-01-07 | Sk新技术株式会社 | Secondary battery electrode plate drying method and drying system |
| CN113899194B (en) * | 2020-07-06 | 2023-10-03 | Sk新能源株式会社 | Drying method and drying system for electrode plate of secondary battery |
| CN112120314A (en) * | 2020-09-22 | 2020-12-25 | 上海誉甲自动化技术有限公司 | Temperature control clothes energy recycling device |
| CN118066845A (en) * | 2024-04-24 | 2024-05-24 | 江苏中科智芯集成科技有限公司 | Method and device for controlling gas in oven |
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| Publication number | Publication date |
|---|---|
| CN102937817B (en) | 2014-09-17 |
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Effective date of registration: 20230217 Address after: 300457 No. 38, Haitai South Road, Binhai high tech Industrial Development Zone (outer ring), Binhai New Area, Tianjin Patentee after: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: 300384 Tianjin Xiqing District Binhai hi tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |