何為氣動(dòng)閥門
點(diǎn)擊次數(shù)：2851 更新時(shí)間：2009-11-02
從氣閥工作原理來(lái)看，氣閥工作性能將直接影響壓縮機(jī)氣缸的工作，因此，對(duì)氣閥有如下要求：阻力損失小。氣閥阻力損失大小與氣流的閥隙速度及彈簧力大小有關(guān)。氣速越高，能量損失越大；彈簧力過(guò)大，阻力損失也大，其大小按氣閥運(yùn)動(dòng)規(guī)律的合理性準(zhǔn)則設(shè)計(jì)確定。氣閥關(guān)閉及時(shí)、迅速，關(guān)閉時(shí)不漏氣，以提高機(jī)器的效率，延長(zhǎng)使用期。壽命長(zhǎng)、工作可靠。限制氣閥壽命的主要因素是閥片及彈簧質(zhì)量，一般對(duì)長(zhǎng)期連續(xù)運(yùn)轉(zhuǎn)的壓縮機(jī)，希望壽命達(dá)8000小時(shí)以上；對(duì)移動(dòng)式、短氣閥是往復(fù)活塞式壓縮機(jī)中的重要部件，也是易損壞的部件之一。它的好壞直接影響壓縮機(jī)的排氣量、功率消耗及運(yùn)轉(zhuǎn)的可靠性，目前壓縮機(jī)正向高速方向發(fā)展，而限制轉(zhuǎn)速提高的關(guān)鍵問(wèn)題之一就是氣閥。活塞式壓縮機(jī)一般都采用“自動(dòng)閥”，就是氣閥的開啟與關(guān)閉是依靠閥片兩邊的壓力差實(shí)現(xiàn)的，沒(méi)有其它的驅(qū)動(dòng)機(jī)構(gòu)。期或間歇運(yùn)轉(zhuǎn)的壓縮機(jī)，要求可稍低些。
From the air valve operating principles of view, air valve performance will directly affect the work of compressor tanks, air valve for the following requirements : resistance losses small. Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. Gas higher speed, the greater the energy losses; Spring-loaded edge too large, the loss is great resistance, the size of the air valve movement design guidelines to determine the reasonableness of the law. Air valve closed timely, rapid, not leak closed to improve the efficiency of machines and extended use period. Long life, work reliable. Life is the main factor restricting air valve and spring-loaded valves quality, the general long-term continuous operation of the compressors to life 80 hours; For , short-term or intermittent operation of compressors, may require slightly more.
Air valve and piston-type compressors are to the important components is one of the components easily damaged. It will have a direct impact on the displacement compressors, power consumption and reliability of operation, the current compressor is fast direction, and rotational speed limit is one of the key issues in improving air valve. Piston-type compressors typically use the "automatic valve" that the air valve is opened and closed valves on the pressure on both sides to achieve poor, and there is no other drive.
From the air valve operating principles of view, air valve performance will directly affect the work of compressor tanks, air valve for the following requirements : resistance losses small. Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. Gas higher speed, the greater the energy losses; Spring-loaded edge too large, the loss is great resistance, the size of the air valve movement design guidelines to determine the reasonableness of the law. Air valve closed timely, rapid, not leak closed to improve the efficiency of machines and extended use period. Long life, work reliable. Life is the main factor restricting air valve and spring-loaded valves quality, the general long-term continuous operation of the compressors to life 80 hours; For , short-term or intermittent operation of compressors, may require slightly more.
Air valve and piston-type compressors are to the important components is one of the components easily damaged. It will have a direct impact on the displacement compressors, power consumption and reliability of operation, the current compressor is fast direction, and rotational speed limit is one of the key issues in improving air valve. Piston-type compressors typically use the "automatic valve" that the air valve is opened and closed valves on the pressure on both sides to achieve poor, and there is no other drive.
