閉風(fēng)器又名星型卸料器, 卸灰閥, 關(guān)風(fēng)機(jī),旋轉(zhuǎn)給料器,通常閉風(fēng)器的結(jié)構(gòu)是由帶有數(shù)片葉片的轉(zhuǎn)子葉輪,殼體,密封件及 減速器, 電動機(jī)等組成.進(jìn)出口法蘭的為A型,圓形的為B型.閉風(fēng)器一般都安裝在除塵器灰斗下部，為保證連接處的嚴(yán)密不漏風(fēng)，上部應(yīng)經(jīng)常保持（儲存）一定高度的粉塵。下面為大家介紹一下閉風(fēng)器的工作原理。

A closed air blower, also known as a star shaped unloader, ash discharge valve, closed fan, and rotary feeder, is usually composed of a rotor impeller with several blades, a shell, seals, reducer, and an electric motor. The inlet and outlet flanges are of type A, while the circular ones are of type B. Closed air blowers are generally installed at the lower part of the dust collector hopper. To ensure a tight connection without air leakage, the upper part should regularly maintain (store) a certain height of dust. Below, we will introduce the working principle of the air shutter.

　　閉風(fēng)器的工作原理主要基于其內(nèi)部結(jié)構(gòu)和設(shè)計(jì)，以葉輪式閉風(fēng)器為例，其工作原理包括以下幾點(diǎn)：

The working principle of a wind shutter is mainly based on its internal structure and design. Taking a impeller wind shutter as an example, its working principle includes the following points:

　　葉輪式閉風(fēng)器在電機(jī)轉(zhuǎn)動時(shí)，通過減速降速在通過連接軸傳遞給主軸，帶動旋轉(zhuǎn)葉輪旋轉(zhuǎn)，起到卸料原理。

When the impeller type air shutter rotates, it decelerates and transmits the speed to the main shaft through the connecting shaft, driving the rotating impeller to rotate and playing the unloading principle.

　　鎖風(fēng)是通過閥體中總是保持有充足的余料，靠余量把葉輪和殼體間隙密封起到鎖風(fēng)作用。

Locking the air is achieved by always maintaining sufficient excess material in the valve body, and sealing the gap between the impeller and the casing through the excess to achieve the locking effect.

　　閉風(fēng)器包括葉輪、葉輪軸、殼體等部分，其中殼體的內(nèi)徑從左至右逐漸減小，葉片的高度從左至右逐漸減小，以實(shí)現(xiàn)物料的順利輸送和氣流的阻擋。

The air shutter includes impeller, impeller shaft, shell and other parts, where the inner diameter of the shell gradually decreases from left to right, and the height of the blades gradually decreases from left to right to achieve smooth material transportation and airflow obstruction.

　　閉風(fēng)器的工作還涉及到與卸塵閥的電動機(jī)建立連鎖，以保持一定高度的灰柱，防止卸空。

The work of the air shutter also involves establishing a chain with the electric motor of the dust discharge valve to maintain a certain height of the ash column and prevent emptying.

　　此外，閉風(fēng)器的設(shè)計(jì)還包括壓力平衡結(jié)構(gòu)，當(dāng)室內(nèi)外氣壓發(fā)生變化時(shí)，通過特殊的通道和隔板進(jìn)行壓力平衡，避免氣流突然流動和噪音產(chǎn)生。這種設(shè)計(jì)確保了閉風(fēng)器能夠高效地對室內(nèi)外氣壓差進(jìn)行平衡，從而達(dá)到防止噪音和抽風(fēng)現(xiàn)象的目的。

In addition, the design of the air shutter also includes a pressure balancing structure. When there is a change in indoor and outdoor air pressure, special channels and partitions are used for pressure balancing to avoid sudden airflow and noise generation. This design ensures that the air shutter can efficiently balance the indoor and outdoor air pressure difference, thereby achieving the goal of preventing noise and exhaust phenomena.

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