Energy-saving and low-flow-resistance Y-type shutoff valve

Abstract

The invention discloses an energy-saving and low-flow-resistance Y-type shutoff valve, which comprises a valve body, a valve clack, a valve rod, a valve rod guide device, a valve clack locating pin and an upper seal of a valve cover. The end face of the valve clack is of a concave arc shape, and when the valve clack is in a fully-open state, the concave arc of the end face of the valve clack is of a shape, which forms an overall arc in a manner of being matched with a flow path where the end face of the valve clack is located. The energy-saving and low-flow-resistance Y-type shutoff valve is reasonable in structure, the valve clack is matched with the valve body, when the valve is fully opened, the entrance of the valve clack and a valve seat hole form a matched and smooth curved surface, the exit of the valve clack and a through hole of the valve body form a matched and smooth channel, and the moving direction and the position of the valve clack are determined through the combination of parts, such as the valve body, the valve rod, the valve clack, an upper seal seat, and the guide of the valve clack and the valve rod, so that the correct position of the valve clack is ensured when the valve clack is opened, the forming of a matched flow line of the valve body and the valve clack is ensured, and the effects of energy saving and consumption reducing are reached.

Description

technical field [0001] The invention relates to a Y-type stop valve. Background technique [0002] Compared with the straight-through globe valve, globe check valve and lift check valve, the flow resistance coefficient of the existing Y-type globe valve, Y-type globe check valve and Y-type lift check valve has been significantly reduced, but the disc and The channel of the valve body has a sudden change in the inner cavity of the valve seat hole, which makes the fluid eddy current during high-speed movement, resulting in energy loss. Contents of the invention [0003] The object of the present invention is to provide an energy-saving and low-flow-resistance Y-shaped stop valve with reasonable structure and low flow-resistance. [0004] Technical solution of the present invention is: [0005] An energy-saving and low-flow-resistance Y-shaped globe valve, including a valve body, a valve disc, a valve stem, a valve stem guide device, a valve disc positioning pin, and a seal...

AI Technical Summary

Problems solved by technology

[0002] Compared with the straight-through globe valve, globe check valve and lift check valve, the flow resistance coefficient of the existing Y-type globe valve, Y-type globe check valve and Y-type lift check valve has been significantly reduced, but the disc and The channel of the valve body has a sudden change in the inner cavity of the valve seat hole, which makes the fluid eddy current during high-speed movement, resulting in energy loss

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