Energy-saving break valve

Abstract

The invention relates to the valve technical field, in particular to an energy-saving disconnecting valve which comprises a valve body, a valve seat, a valve cover, a valve handle, a handwheel and a valve clack. The valve body comprises an inlet flow passage, a middle cavity and an outlet flow passage and is characterized in that the inlet flow passage of the valve body uses a horizontal inlet streamline pattern flow passage; a crown face is used for transition between the inlet flow passage and the middle cavity; the jointing position of the middle cavity and the outlet flow passage is a large angle penetrated oval cross section structure. The energy-saving disconnecting valve has the advantage that the disconnecting valve has simple and reasonable structure; the fluid at the inlet and the middle cavity has no fierce impacting phenomenon; the flow resistance entering and the energy consumption of the system into the middle cavity are greatly reduced; and the fluid can smoothly pass and cause the flow resistance and the energy consumption of the system of the fluid flowing out of the middle cavity is greatly reduced, thus effectively reducing the thermal transition loss of the heating up of the system, being capability of resisting the corrosion of strong acid and alkali and having better sealing effect.

Description

[technical field] [0001] The invention relates to the technical field of valves, in particular to an energy-saving stop valve. [Background technique] [0002] At present, the structure of the existing cut-off valve mainly includes: a hand wheel, a valve body, a valve cover, a valve stem and a valve disc, and the valve body is composed of an inlet flow channel, a middle cavity and an outlet flow channel. The internal channel structure of the existing valve body is also various, and there are many shortcomings in the valve body of these structures: when the fluid at the inlet of the valve body enters the inner cavity of the valve body, there will be a violent low impact phenomenon, which makes The flow resistance and system energy consumption entering the middle chamber are very large, and the resistance when the fluid flows out of the middle chamber is also very large, which greatly increases the flow resistance of the fluid flowing out of the middle chamber and the system en...

AI Technical Summary

Problems solved by technology

The internal channel structure of the existing valve body is also various, and there are many shortcomings in the valve body of these structures: when the fluid at the inlet of the valve body enters the inner cavity of the valve body, there will be a violent low impact phenomenon, which makes The flow resistance and system energy consumption entering the middle cavity are very large, and the resistance when the fluid flows out of the middle cavity is also very large, which greatly increases the flow resistance of the fluid flowing out of the middle cavity and the system energy consumption, resulting in the heat conversion loss of the system heating up

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