預(yù)處理：該工段設(shè)計(jì)為三級(jí)干式過(guò)濾，依次為G4、F7、F9；主要功能去除顆粒物，防止堵塞沸石轉(zhuǎn)輪的微細(xì)孔，從而影響吸附效果甚至失效。

　　Preprocessing: This section is designed as a three-stage dry filtration system, consisting of G4, F7, and F9 in sequence; The main function is to remove particulate matter and prevent clogging of the micropores of the zeolite wheel, which may affect the adsorption effect or even cause failure.

　　吸附：經(jīng)過(guò)三級(jí)過(guò)濾后“不含顆粒物的有機(jī)廢氣”通過(guò)緩慢轉(zhuǎn)動(dòng)的沸石轉(zhuǎn)輪后，VOCs被轉(zhuǎn)輪吸附，經(jīng)過(guò)凈化后的氣體通過(guò)引風(fēng)機(jī)后排空，設(shè)計(jì)吸附率≥95%。

　　Adsorption: After three stages of filtration, the organic waste gas without particulate matter passes through a slowly rotating zeolite wheel, and VOCs are adsorbed by the wheel. The purified gas is discharged through an induced draft fan, and the designed adsorption rate is ≥ 95%.

　　脫附：在轉(zhuǎn)輪吸附的同時(shí)，在脫附風(fēng)機(jī)的作用下，引入冷卻區(qū)及RTO高溫腔混合后的氣體，溫度在180-220℃之間，對(duì)沸石轉(zhuǎn)輪進(jìn)行脫附。

　　Desorption: At the same time as the adsorption of the zeolite wheel, the gas mixed in the cooling zone and RTO high-temperature chamber is introduced under the action of the desorption fan, with a temperature between 180-220 ℃, to desorb the zeolite wheel.

　　吸附在沸石上的VOCs被加熱后，由于高溫脫附形成的高濃度、小風(fēng)量有機(jī)廢氣被脫附風(fēng)機(jī)送入RTO。

　　After the VOCs adsorbed on the zeolite are heated, the high concentration and low air volume organic waste gas formed by high-temperature desorption is sent into the RTO by the desorption fan.

　　氧化：脫附出來(lái)的高濃度、小風(fēng)量的VOCs廢氣送到蓄熱式焚燒爐RTO的爐膛進(jìn)行高溫焚燒。在760℃以上的溫度環(huán)境下，停留時(shí)間大于1S以上的情況下，VOCs的破壞率可達(dá)99%以上。

　　Oxidation: The high concentration and low air volume VOCs waste gas desorbed is sent to the furnace of the regenerative incinerator RTO for high-temperature incineration. At temperatures above 760 ℃ and residence times exceeding 1 second, the destruction rate of VOCs can reach over 99%.

　　焚燒后凈化的氣體一小部分進(jìn)行轉(zhuǎn)輪的脫附，大部分高溫氣體與箱體內(nèi)的蓄熱陶瓷進(jìn)行熱交換，熱回收效率可達(dá)95%。

　　A small portion of the purified gas after incineration undergoes desorption from the impeller, while the majority of the high-temperature gas exchanges heat with the thermal storage ceramics inside the box, resulting in a heat recovery efficiency of up to 95%.

　　沸石轉(zhuǎn)輪系統(tǒng)設(shè)備主要特點(diǎn)：廢氣處理系統(tǒng)必須具備自動(dòng)啟動(dòng)、手動(dòng)啟動(dòng)、超高溫脫附等多種運(yùn)行模式：自動(dòng)啟動(dòng)模式：廢氣處理系統(tǒng)通過(guò)壓力變送器等手段能自動(dòng)實(shí)現(xiàn)處理系統(tǒng)與車間產(chǎn)生廢氣工序的實(shí)際排氣總量配合，經(jīng)人員現(xiàn)場(chǎng)確認(rèn)啟動(dòng)后，系統(tǒng)能自動(dòng)開(kāi)啟與車間送排風(fēng)系統(tǒng)連鎖運(yùn)行。

　　The main characteristics of the zeolite rotary system equipment are that the exhaust gas treatment system must have multiple operating modes such as automatic start, manual start, and ultra-high temperature desorption. Automatic start mode: The exhaust gas treatment system can automatically achieve the actual exhaust volume coordination between the treatment system and the workshop's exhaust gas process through pressure transmitters and other means. After on-site confirmation by personnel, the system can automatically start and operate in a chain with the workshop's air supply and exhaust system.

　　手動(dòng)模式：手動(dòng)模式為各設(shè)備聯(lián)鎖允許下，可手動(dòng)控制各設(shè)備啟動(dòng)和停止。

　　Manual mode: The manual mode allows for manual control of the start and stop of each device, with the interlocking of each device.

　　超高溫脫附模式：系統(tǒng)運(yùn)行一段時(shí)間后，可對(duì)濃縮設(shè)備進(jìn)行清潔。開(kāi)啟超高溫脫附模式時(shí)，系統(tǒng)將脫附風(fēng)的溫度加熱至280～300℃，并對(duì)沸石轉(zhuǎn)輪表面持續(xù)吹掃，將殘留的高沸點(diǎn)VOCs汽化，達(dá)到清潔的目的。

　　Ultra high temperature desorption mode: After running the system for a period of time, the concentration equipment can be cleaned. When the ultra-high temperature desorption mode is activated, the system heats the desorption air to a temperature of 280-300 ℃ and continuously blows the surface of the zeolite wheel to vaporize residual high boiling point VOCs, achieving the purpose of cleaning.

　　廢氣處理系統(tǒng)可實(shí)現(xiàn)的功能如下：

　　The functions that can be achieved by the exhaust gas treatment system are as follows:

　　溫度控制和記錄：沸石轉(zhuǎn)輪廢氣吸附前、后溫度，脫附前、后溫度，焚燒爐內(nèi)的溫度，焚燒爐出口溫度，最終排氣溫度等信號(hào)進(jìn)入PLC，可遠(yuǎn)程記錄、存儲(chǔ)和顯示主控溫度記錄點(diǎn)。其中，脫附廢氣需保持在特定溫度之間，設(shè)置溫度在線監(jiān)測(cè)儀，溫度檢測(cè)元件采用熱電阻或熱電偶傳感器，上傳PLC，信號(hào)經(jīng)采集處理后輸出模擬信號(hào)（4~20mA），控制混風(fēng)箱、相應(yīng)閥門等設(shè)備，實(shí)現(xiàn)溫度自動(dòng)控制。

　　Temperature control and recording: The temperature before and after adsorption of zeolite turbine exhaust gas, the temperature before and after desorption, the temperature inside the incinerator, the outlet temperature of the incinerator, the final exhaust temperature and other signals enter the PLC, which can remotely record, store and display the main control temperature recording point. Among them, the desorption exhaust gas needs to be maintained between specific temperatures, and a temperature online monitoring device is set up. The temperature detection element uses a thermistor or thermocouple sensor, which is uploaded to the PLC. The signal is collected and processed to output an analog signal (4-20mA), which controls the mixing box, corresponding valves and other equipment to achieve automatic temperature control.

　　壓力控制和記錄：焚燒爐內(nèi)的壓力，天然氣壓力，天然氣助燃風(fēng)壓力以及天然氣管路壓力能夠進(jìn)行監(jiān)測(cè)并自動(dòng)控制，接入PLC部分?jǐn)?shù)據(jù)會(huì)記錄存儲(chǔ)。當(dāng)壓力超出設(shè)定范圍時(shí)，能夠進(jìn)行聲光報(bào)警，并停止相應(yīng)設(shè)備動(dòng)作。

　　Pressure control and recording: The pressure inside the incinerator, natural gas pressure, natural gas combustion air pressure, and natural gas pipeline pressure can be monitored and automatically controlled. The data connected to the PLC will be recorded and stored. When the pressure exceeds the set range, an audible and visual alarm can be triggered and the corresponding equipment action can be stopped.

　　壓差記錄和報(bào)警：濃縮轉(zhuǎn)輪前后需配置壓差變送器，過(guò)濾器各級(jí)過(guò)濾之間需配置壓差變送器，能實(shí)現(xiàn)壓差過(guò)載時(shí)自動(dòng)報(bào)警，能對(duì)各級(jí)壓差顯示和記錄，其信號(hào)要求接入PLC。

　　Differential pressure recording and alarm: Differential pressure transmitters need to be installed before and after the concentration wheel, and differential pressure transmitters need to be installed between each stage of the filter. They can automatically alarm when the differential pressure overload occurs, display and record the differential pressure at each stage, and their signals need to be connected to the PLC.

　　轉(zhuǎn)輪控制：轉(zhuǎn)輪電機(jī)采用變頻控制。

　　Wheel control: The wheel motor adopts frequency conversion control.

　　濃縮轉(zhuǎn)輪速度在線監(jiān)測(cè)，并對(duì)轉(zhuǎn)輪安裝接近開(kāi)關(guān)，確保轉(zhuǎn)輪速度控制在設(shè)定范圍，當(dāng)轉(zhuǎn)輪轉(zhuǎn)速達(dá)到設(shè)定限值時(shí)，系統(tǒng)立即發(fā)出報(bào)警信號(hào)。風(fēng)機(jī)控制：

　　Concentrate the online monitoring of wheel speed and install proximity switches on the wheel to ensure that the wheel speed is controlled within the set range. When the wheel speed reaches the set limit, the system immediately sends an alarm signal. Fan control:

　　風(fēng)量及壓力調(diào)整之風(fēng)機(jī)電機(jī)采用變頻器控制，變頻器數(shù)量及參數(shù)隨風(fēng)機(jī)數(shù)量和功率確定。

　　The fan motor for adjusting air volume and pressure is controlled by a frequency converter, and the number and parameters of the frequency converters are determined by the number and power of the fans.

　　變頻器均采用總線控制且配置簡(jiǎn)體中文操作面板。

　　The frequency converter adopts bus control and is equipped with a simplified Chinese operation panel.

　　各電機(jī)回路配有低壓斷路器(帶過(guò)載保護(hù)，有反饋觸點(diǎn)進(jìn)PLC)，對(duì)電機(jī)進(jìn)行相應(yīng)保護(hù)和切斷控制。

　　Each motor circuit is equipped with a low-voltage circuit breaker (with overload protection and feedback contacts into the PLC) to provide corresponding protection and cut-off control for the motor.

　　所有風(fēng)機(jī)運(yùn)行、故障等信號(hào)實(shí)時(shí)顯示，故障時(shí)聲光報(bào)警。

　　Real time display of all fan operation and fault signals, and audible and visual alarms in case of faults.

　　風(fēng)閥執(zhí)行器：

　　Wind valve actuator:

　　各電動(dòng)風(fēng)閥執(zhí)行器電源為220VAC，氣動(dòng)風(fēng)閥執(zhí)行器氣源為0.5~0.7Mpa；調(diào)節(jié)型閥門控制信號(hào)為4~20mA，開(kāi)度上傳PLC；開(kāi)關(guān)型閥門開(kāi)關(guān)狀態(tài)上傳PLC。

　　The power supply of each electric air valve actuator is 220VAC, and the air source of the pneumatic air valve actuator is 0.5~0.7Mpa; The control signal of the regulating valve is 4-20mA, and the opening is uploaded to the PLC; Upload the switch status of the switch type valve to the PLC.

　　電動(dòng)風(fēng)閥與送風(fēng)機(jī)設(shè)有聯(lián)鎖，啟動(dòng)時(shí)先開(kāi)電動(dòng)風(fēng)閥，再啟動(dòng)風(fēng)機(jī)；關(guān)閉時(shí)相反。電動(dòng)風(fēng)閥能根據(jù)開(kāi)啟程度進(jìn)行風(fēng)量調(diào)節(jié)。

　　The electric air valve is interlocked with the air supply fan. When starting, the electric air valve is opened first, and then the fan is started; When closed, it is the opposite. The electric air valve can adjust the air volume according to the degree of opening.

　　風(fēng)閥執(zhí)行器可設(shè)置自動(dòng)/手動(dòng)模式，自動(dòng)模式下開(kāi)度受PLC控制，手動(dòng)模式下通過(guò)執(zhí)行器自帶開(kāi)關(guān)可對(duì)各風(fēng)閥實(shí)現(xiàn)打開(kāi)、關(guān)閉等操作，并能在閥門本地顯示閥位狀態(tài)。

　　The air valve actuator can be set to automatic/manual mode. In automatic mode, the opening is controlled by PLC. In manual mode, the actuator's built-in switch can be used to open and close each air valve, and the valve position status can be displayed locally.

　　電動(dòng)開(kāi)關(guān)閥的開(kāi)、關(guān)到位信號(hào)，電動(dòng)調(diào)節(jié)閥的閥門開(kāi)啟程度通過(guò)PLC柜觸摸屏進(jìn)行顯示，發(fā)生故障時(shí)聲光報(bào)警。

　　The opening and closing signals of the electric switch valve are in place, and the degree of valve opening of the electric regulating valve is displayed on the PLC cabinet touch screen. When a fault occurs, an audible and visual alarm is triggered.

　　急停保護(hù)：

　　Emergency stop protection:

　　控制柜設(shè)置急停按鈕；急停按鈕配置指示燈，指示急停按鈕狀態(tài)。急停按鈕配雙觸點(diǎn)，用于I/O輸入。

　　Set emergency stop button in the control cabinet; Emergency stop button configuration indicator light, indicating the status of the emergency stop button. The emergency stop button is equipped with dual contacts for I/O input.

　　當(dāng)急停按鈕按下時(shí)，切斷系統(tǒng)內(nèi)的設(shè)備控制回路及程序輸出，并進(jìn)行聲光報(bào)警，同時(shí)將此急停信號(hào)上傳PLC。

　　When the emergency stop button is pressed, the equipment control circuit and program output in the system are cut off, and an audible and visual alarm is triggered. At the same time, this emergency stop signal is uploaded to the PLC.

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