調節閥的產品種類繁多,結構多樣,還在不斷更新變化。一般來說,新疆閥門是通用的,可以與氣動執行機構、電動執行機構或其他執行機構相匹配。那么如何選擇這些各種調節閥呢?選擇調節閥的閥體類型是調節閥的選擇。重要環節,因此在具體選擇時,可以從以下幾個方面考慮:
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:
閥芯的形狀結構主要取決于所選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.
耐腐蝕因介質具有腐蝕性,在滿足調節功能的情況下,盡量選用結構簡單的閥門。新疆閥門生產廠家說在介質溫度、壓力高、變化大的情況下,應選用閥芯和閥座材料進行溫度、壓力變化小的閥門。
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)當流體介質是含有高濃度磨損顆粒的懸浮液時,閥芯和閥座的接合面每次關閉都會受到嚴重摩擦。因此,閥門的流路應光滑,閥門的內部材料應堅硬。
(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)液體介質只能防止閃蒸和空化。在實際生產過程中,閃蒸和空化不僅影響流量系數的計算,還會產生振動和噪音,縮短閥門的使用壽命。因此,在選擇閥門時,應防止閥門閃蒸和空化。
(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.
從輸出力的角度考慮輸出力。
Consider the output force from the perspective of output force.
為了使調節閥正常工作,所使用的執行機構應能夠產生足夠的輸出力來克服各種阻力,以確保高度密封和閥門打開。一般沒有復位彈簧用于氣動、液壓和電動執行機構的雙重功能。新疆閥門生產廠家說力的大小與其運行方向無關。因此,選擇執行機構的關鍵在于找出大輸出力和電機旋轉扭矩。對于單作用的氣動執行機構,輸出力與閥門的開度有關,調節閥上的力也會影響運動特性,因此需要在整個調節閥的開度范圍內建立力平衡。
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.