A fully automatic anaerobic fermentation tank control device and control method thereof
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An anaerobic fermentation tank and control device technology, which is applied in the field of food machinery, can solve the problems of long sampling period, large error, and inconvenient sampling operation, and achieve the effects of easy construction, accurate sampling control, and low price
Active Publication Date: 2020-02-21
上海瑞盛联信息科技有限公司
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[0004] The sampling of existing anaerobic fermentation tanks is generally controlled manually, because the sampling interval is 2-6 hours each time during the experiment, so the sampling period is long, and the middle of a single test cannot be interrupted. Therefore, the experimental process is often 24 hours without interruption. Special personnel are equipped to take samples at regular intervals, and the sampling volume is also controlled manually, with large errors
Therefore, the current problems of sampling in anaerobic fermentation tanks are: long sampling period, difficult control of sampling volume, inconvenient sampling operation, etc.
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Embodiment 1
[0038] Embodiment 1, key points please refer to figure 2 and image 3 , a fully automatic anaerobic fermentation tank control device, including a PLC industrial control board 100, the input port X2 of the PLC industrial control board 100 is connected to a pressure relay 110, the input port X3 is connected to a liquid level sensor 120, and the pressure relay 110 and the other end of the liquid level sensor 120 are connected to the power supply terminal VCC of the PLC industrial control board, the pressure relay 110 is arranged on the top of the anaerobic fermentation tank 200, and the liquid level sensor 120 is adjacent to the sampling Next to the test tube 210; the output port Y0 of the PLC industrial control board 100 is connected to a liquid discharge solenoid valve 130, the output port Y1 is connected to a sample adding solenoid valve 140, the output port Y2 is connected to an inflation solenoid valve 150, and the output port Y3 is connected to a lofting solenoid valve. V...
Embodiment 2
[0044] Embodiment 2, a fully automatic anaerobic fermentation tank control method, the control method is based on the described automatic anaerobic fermentation tank control device to perform the following steps:
[0045] Step 1, start, the discharge solenoid valve 130 is charged, and the waste liquid in the anaerobic fermentation tank 200 is removed; at the same time, the timer inside the PLC industrial control board 100 starts timing T1;
[0046] Step 2, when T1 time is up, trigger the charging of the sample adding solenoid valve 140, open the sample adding port, add the sample, and trigger the timer at the same time to start timing T2;
[0047] Step 3, when the time T2 is up, the sample adding solenoid valve 140 is powered off, the sample adding port is closed, and the timer starts timing T3;
[0048] Step 4, when T3 time is up, trigger charging solenoid valve 150, steam solenoid valve 170, and test tube solenoid valve 180, and trigger the timer to start timing T4 at the sa...
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Abstract
The invention provides an automatic anaerobic fermentation cylinder control device and an automatic anaerobic fermentation cylinder control method. The device comprises a PLC industrial control panel, wherein an input port X2 of the PLC industrial control panel is connected with a pressure relay, an input port X3 is connected with a liquid level sensor, an output port Y0 is connected with a drainage solenoid valve, an output port Y1 is connected with a sample adding solenoid valve, an output port Y 2 is connected with a filling solenoid valve, an output port Y3 is connected with a sample discharging solenoid valve, an output port Y4 is connected with a steam solenoid valve, an output port Y5 is connected with a test tube solenoid valve, an output port Y6 is connected with a stepping motor, the other end of each of the sampling adding solenoid valve, the filling solenoid valve, the sample discharging solenoid valve, the steam solenoid valve, the test tube solenoid valve and the stepping motor are all connected with a positive electrode of a power supply, and a negative electrode of the power supply is connected with a COM port of the PLC industrial control panel. According to the device and the method provided by the invention, a timer in the PLC industrial control panel is used for controlling time, so as to trigger an electromagnet to power on or power off to control the liquid level and the open and close of the solenoid valve, so that automatic sampling of the fermentation system is achieved, and the sample volume is accurate.
Description
【Technical field】 [0001] The invention relates to the field of food machinery, in particular to a fully automatic anaerobic fermentation tank control device and a control method thereof. 【Background technique】 [0002] Fermentation equipment is one of the most important equipment in microbial engineering. An excellent culture device should be designed to have a tight structure, good liquid mixing performance, high mass transfer and heat transfer rates, and reliable detection and control instruments. Get maximum productivity. According to whether the fermentation needs oxygen, the fermentation equipment is divided into aerobic fermentation tank and anaerobic fermentation tank. However, the practical application in production is mainly based on aerobic microbial fermentation, so there are the most types of aerobic fermentation tanks, and the research is the most thorough. There are few studies on anaerobic fermentation system. [0003] The workflow of the manual anaerobic f...
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