Anti-blocking electric ball valve
An electric ball valve, anti-seize technology, applied in the direction of DC motor rotation control, valve details, valve device, etc., can solve problems such as blockage and ball valve damage, and achieve the effect of ensuring that it is not damaged.
Inactive Publication Date: 2018-04-20
合肥硕佳电子科技有限公司
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Problems solved by technology
In some applications, even if the filter is added, some solids such as fine sediment will flow into the ball valve with the liquid, and the ball valve will cause friction and blockage due to these impurities during operation, and in severe cases, the ball valve will be damaged.
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[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0013] see Figure 1-2 , in the embodiment of the present invention, an anti-seize electric ball valve includes a housing 1, a DC motor 5, a control board 6, a coupling 7 and a ball valve 8, and the upper cover 3 is screwed and installed on the top of the housing 1 A sealing ring 2 is arranged between the top of the housing 1 and the upper cover 3, and the center of the top of the upper cover 3 is fixed with a hex nut 10 for easy disassembly and installation o...
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The invention discloses an anti-blocking electric ball valve. The electric ball valve comprises a shell, a direct current machine, a control panel, a coupling and a ball valve body; an upper cover isarranged at the top of the shell in a screwing mode through threads; a sealing ring is arranged between the top of the shell and the upper cover; a hexagonal nut which facilitates dismounting and mounting of the upper cover is fixedly arranged in the center of the top of the upper cover; the direct-current machine and the control panel are arranged in the shell; a connection hole which is electrically connected to the control panel is formed in the outer wall of the shell in an extending mode; and the coupling is arranged at the bottom of the shell in a rotating mode. The electric ball valve has the advantages that the control panel is used for driving the direct-current machine to rotate clockwise and anticlockwise so as to open and close the ball valve; and in the operation process of the ball valve, whether the operation state is normal or not is judged by detecting the working current of the motor, after abnormal current is generated, the current is rapidly turned off, the voltagepolarity is changed, the ball valve is enabled to temporarily move in the reverse direction so as to remove an obstruction, the normal operation direction is restored after the obstruction is removed,and therefore the direct current machine can be ensured to be prevented from getting damaged.
Description
technical field [0001] The invention relates to a ball valve, in particular to an anti-seize electric ball valve. Background technique [0002] In the prior art, the electric ball valve is generally driven by a DC motor or an AC motor according to the size of the power and the requirements of the working conditions. According to the external control signal, the polarity of the control voltage of the DC motor or the voltage phase of the AC motor is changed to realize the positive and negative rotation of the motor. And then realize the opening or closing of the ball valve. When the ball valve is fully open or fully closed, the power supply circuit of the motor is cut off by the signal of the position sensor, and the power supply circuit can be restarted only after the external control conditions change and the reverse operation signal of the ball valve is obtained. When the ball valve is not fully open, if an obstacle is encountered, the motor current will increase rapidly, ...
Claims
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IPC IPC(8): F16K31/04H02P7/03
CPCF16K31/042H02P7/03
Inventor 李安川张兵兵
Owner 合肥硕佳电子科技有限公司