電磁閥與電動閥的區(qū)別
Difference between solenoid valve and electric valve
1、工作性質(zhì):
1. Nature of work:
電動閥的驅(qū)動方式一般是用電機,比較耐電壓沖擊。電磁閥是快開和快關(guān)的,一般用在小流量和小壓力,要求開關(guān)頻率大的地方電動閥反之。電動閥的開度可以控制,狀態(tài)有開、關(guān)、半開半關(guān),可以控制管道中介質(zhì)的流量而電磁閥達不到這個要求。
The driving mode of electric valve is generally motor, which is more resistant to voltage shock. The speed of opening and closing the solenoid valve is generally high, and the speed of opening and closing the solenoid valve is low. The opening of the electric valve can be controlled, and the states are on, off, half on and half off, which can control the flow of medium in the pipeline, while the solenoid valve can not meet this requirement.
電磁閥一般流通系數(shù)很小,而且工作壓力差很小。比如一般25口徑的電磁閥流通系數(shù)比15口徑的電動球閥小很多。電磁閥的驅(qū)動是通過電磁線圈,比較容易被電壓沖擊損壞。相當于開關(guān)的作用,就是開和關(guān)2個作用。
Generally, the flow coefficient of solenoid valve is very small, and the working pressure difference is very small. For example, the flow coefficient of 25 caliber solenoid valve is much smaller than that of 15 caliber electric ball valve. The solenoid valve is driven through the solenoid coil, which is easy to be damaged by voltage shock. It is equivalent to the function of switch, which is on and off.
電磁閥一般斷電可以復(fù)位,電動閥要這樣的功能需要加復(fù)位裝置。
Generally, the solenoid valve can be reset after power failure, and the electric valve needs a reset device for such a function.
2、開關(guān)形式:
2. Switch type:
電動閥的驅(qū)動一般是用電機,開或關(guān)動作完成需要一定的時間模擬量的,可以做調(diào)節(jié)。
The drive of electric valve is generally completed by motor. The opening or closing action requires a certain amount of time and analog quantity, which can be adjusted.
電磁閥通過線圈驅(qū)動,只能開或關(guān),開關(guān)時動作時間短。
The solenoid valve is driven by coil and can only be opened or closed. The action time is short when opening and closing.
3、適用工藝:
3. Applicable process:
電動閥一般用于調(diào)節(jié),也有開關(guān)量的,比如:風(fēng)機盤管末端。
Electric valves are generally used for regulation, and there are also switching values, such as the end of fan coil.
電磁閥適合一些特殊地工藝要求,比如泄漏、流體介質(zhì)特殊等,價格較貴。
Solenoid valve is suitable for some special process requirements, such as leakage, special fluid medium, etc., and the price is expensive.
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