调节阀的产品种类繁多,结构多样,还在不断更新变化。一般来说,新疆阀门是通用的,可以与气动执行机构、电动执行机构或其他执行机构相匹配。那么如何选择这些各种调节阀呢?选择调节阀的阀体类型是调节阀的选择。重要环节,因此在具体选择时,可以从以下几个方面考虑:
There are a wide variety of products and structures for regulating valves, which are constantly being updated and changed. Generally speaking, Xinjiang valves are universal and can be matched with pneumatic actuators, electric actuators, or other actuators. So how do you choose these various regulating valves? Choosing the valve body type of the regulating valve is the choice of the regulating valve. Important links, therefore, when making specific choices, the following aspects can be considered:
阀芯的形状结构主要取决于所选流量特性和不平衡性等因素。
The shape and structure of the valve core mainly depend on factors such as the selected flow characteristics and imbalance.
耐腐蚀因介质具有腐蚀性,在满足调节功能的情况下,尽量选用结构简单的阀门。新疆阀门生产厂家说在介质温度、压力高、变化大的情况下,应选用阀芯和阀座材料进行温度、压力变化小的阀门。
Due to the corrosiveness of the medium, it is recommended to choose valves with a simple structure while meeting the regulatory function. Valve manufacturers in Xinjiang say that when the medium temperature, pressure, and changes are high, valve cores and valve seat materials should be selected for valves with small temperature and pressure changes.
(4)当流体介质是含有高浓度磨损颗粒的悬浮液时,阀芯和阀座的接合面每次关闭都会受到严重摩擦。因此,阀门的流路应光滑,阀门的内部材料应坚硬。
(4) When the fluid medium is a suspension containing high concentration of wear particles, the joint surface between the valve core and valve seat will experience severe friction every time it is closed. Therefore, the flow path of the valve should be smooth, and the internal material of the valve should be hard.
(5)液体介质只能防止闪蒸和空化。在实际生产过程中,闪蒸和空化不仅影响流量系数的计算,还会产生振动和噪音,缩短阀门的使用寿命。因此,在选择阀门时,应防止阀门闪蒸和空化。
(5) Liquid media can only prevent flashing and cavitation. In the actual production process, flash evaporation and cavitation not only affect the calculation of flow coefficient, but also generate vibration and noise, shortening the service life of the valve. Therefore, when selecting valves, it is important to prevent valve flashing and cavitation.
从输出力的角度考虑输出力。
Consider the output force from the perspective of output force.
为了使调节阀正常工作,所使用的执行机构应能够产生足够的输出力来克服各种阻力,以确保高度密封和阀门打开。一般没有复位弹簧用于气动、液压和电动执行机构的双重功能。新疆阀门生产厂家说力的大小与其运行方向无关。因此,选择执行机构的关键在于找出大输出力和电机旋转扭矩。对于单作用的气动执行机构,输出力与阀门的开度有关,调节阀上的力也会影响运动特性,因此需要在整个调节阀的开度范围内建立力平衡。
In order to ensure the normal operation of the regulating valve, the actuator used should be able to generate sufficient output force to overcome various resistances, ensuring high sealing and valve opening. Generally, there is no return spring used for the dual functions of pneumatic, hydraulic, and electric actuators. The valve manufacturer in Xinjiang stated that the magnitude of force is independent of its operating direction. Therefore, the key to selecting an actuator is to identify the large output force and motor rotational torque. For single acting pneumatic actuators, the output force is related to the opening of the valve, and the force on the regulating valve also affects the motion characteristics. Therefore, it is necessary to establish force balance within the entire opening range of the regulating valve.