沼氣作為可再回用清潔能源，在污染問題日益顯現(xiàn)的情況下逐漸被社會重視。因沼氣中會含有硫化氫，燃燒之后易生成二氧化硫等有害物質(zhì)，因此在使用沼氣之前須將其中的硫化氬除去。
As a renewable and clean energy, biogas has been paid more and more attention by the society under the condition of increasing pollution problems. Because the biogas contains hydrogen sulfide, it is easy to generate harmful substances such as sulfur dioxide after combustion, so the argon sulfide must be removed before using the biogas.
因為硫化氬具有較強的損害性，對人們身體能造成損害，因此應實現(xiàn)脫硫系統(tǒng)自動化，減少人工操作步驟。沼氣脫硫設(shè)備自動控制系統(tǒng)，具有實現(xiàn)脫硫自動控制、運行狀態(tài)顯示、風機變頻調(diào)速、故障監(jiān)控報警等作用，在增加自動化水平的前提下，保障脫硫效率，保障脫硫系統(tǒng)能夠安全穩(wěn)定的運行，在應用前我們應對該設(shè)備作哪些了解呢？接下來我們來探討一下：
Because argon sulfide has strong damage and can cause damage to people's body, the automation of desulfurization system should be realized and manual operation steps should be reduced. The automatic control system of biogas desulfurization equipment can realize automatic desulfurization control, operation status display, fan frequency conversion speed regulation, fault monitoring and alarm. On the premise of increasing the automation level, it can ensure the desulfurization efficiency and ensure the safe and stable operation of the desulfurization system. What should we know about the equipment before application? Next, let's discuss:
其一，應先了解了沼氣脫硫的意義，根據(jù)沼氣脫硫工藝流程，分析工藝操作過程，給出脫硫控制系統(tǒng)的設(shè)計方案。了解沼氣脫硫設(shè)備的控制系統(tǒng)，包括觸摸屏、模擬量輸入輸出模塊、變頻器等。
First, we should first understand the significance of biogas desulfurization, analyze the process operation process according to the biogas desulfurization process, and give the design scheme of desulfurization control system. Understand the control system of biogas desulfurization equipment, including touch screen, analog input and output module, frequency converter, etc.
其次，對脫硫控制系統(tǒng)進行了軟件設(shè)計，究成了S7-200PLC的控制系統(tǒng)梯形圖設(shè)計受組分濃度大小不同的影響，風機開度也需隨之進行調(diào)整，從而保障輸送的空氣能夠充分反應掉，增加脫硫液的再回用效率。系統(tǒng)依據(jù)實時檢測到的組分濃度，利用PID控制器計算出相應的空氣進量，并通過變頻器對風機進行調(diào)整。在設(shè)計脫硫液補液、排液以及循環(huán)泵啟停的時候，不同的操作須對應不同的啟停時間。
Secondly, the software of the desulfurization control system is designed, and the control system ladder diagram of S7-200 PLC is studied. Due to the influence of different component concentrations, the fan opening also needs to be adjusted, so as to ensure that the transmitted air can fully react and increase the reuse efficiency of desulfurization liquid. According to the component concentration detected in real time, the system uses PID controller to calculate the corresponding air inlet, and adjusts the fan through frequency converter. During the design of desulfurizing liquid replenishment, liquid discharge and the start and stop of circulating pump, different operations must correspond to different start and stop times.
然后，設(shè)計觸摸屏監(jiān)控界面，利用MCGS組態(tài)軟件完成脫硫控制系統(tǒng)監(jiān)控界面設(shè)計，在組態(tài)環(huán)境下，建立新工程，構(gòu)造實時數(shù)據(jù)庫、主控窗口和設(shè)備窗口等，實現(xiàn)對系統(tǒng)運行的實時在線監(jiān)控，對出現(xiàn)的狀況進行及時響警聲。
Then, the touch screen monitoring interface is designed, and the MCGS configuration software is used to complete the monitoring interface design of the desulfurization control system. Under the configuration environment, a new project is established, and the real-time database, main control window and equipment window are constructed to realize the real-time online monitoring of the system operation and give a timely alarm to the existing conditions.
末后，在現(xiàn)場對沼氣脫硫設(shè)備系統(tǒng)硬件進行組裝，著重檢查可能出現(xiàn)的問題，對控制系統(tǒng)進行調(diào)試。
Finally, assemble the system hardware of biogas desulfurization equipment on site, focus on the possible problems, and debug the control system.
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企業(yè)二維碼
2021-08-04
