Flow Control Valves and Flow Control Valve Systems
A technology of flow control valve and valve core, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of poor flow controllability, negative flow influence, difficult to control and adjust liquid flow, etc., to improve flow controllability , The effect of stable and accurate flow size
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Embodiment 1
[0042] see figure 1 The schematic structural diagram of the first flow control valve shown; the flow control valve includes an actuator 10, a valve body 11 and a valve core 12;
[0043] The actuator 10 is provided with a motor 101; the valve core 12 is arranged in the cavity of the valve body 11; the valve stem 121 of the valve core 12 is connected with the motor 101, and driven by the motor 101, the valve seat 122 of the valve core 12 is in the cavity Move between the entrance and exit of the
[0044] A plurality of spacer structures 111 are arranged on the inner wall of the cavity corresponding to the moving area of the valve seat 122; flow channels are formed between two adjacent spacer structures 111; The width of the inlet side of the valve is different, so that the flow rate is different when the valve seat is located in different positions.
[0045]figure 1 Take the example in which the width of the inlet side of each flow channel close to the cavity is smaller than...
Embodiment 2
[0048] see figure 2 The specific structural diagram of the first flow control valve shown in the state of 50% flow rate; as the width of the spacer structure along the radial direction of the cavity is wider, the cross-sectional area of the flow channel between the spacer structures is larger, and the flow rate bigger. like figure 2 As shown, along the radial direction of the cavity of the valve body, the width of the inlet side of each spacing structure close to the cavity is smaller than the width of the inlet side away from the cavity, and when the valve seat moves from bottom to top, it is flush with the valve seat The greater the width of the flow channel, and the width of the flow channel changes steadily with the height of the valve seat, so as to achieve the purpose of stable flow change.
[0049] image 3 for figure 2 The flow control valve in the figure is along the XX' section and the schematic diagram of the flow channel section viewed along the Y directio...
Embodiment 3
[0067] see Figure 14 Shown is a structural block diagram of a flow control valve system, which includes the above-mentioned flow control valve 140 and a remote controller 141; the remote controller 141 is electrically connected to the actuator 10 in the flow control valve 140.
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