High-pressure lever ball float type steam trap

Abstract

The invention discloses a high-pressure lever ball float type steam trap and aims at providing the steam trap which is free of shock motion, not limited by structure in terms of working pressure and capable of meeting vertical installation and horizontal installation and improving loading capacity of a floating ball. According to the technical scheme, a valve cover (20) is fixedly connected at an inlet end of a valve body (11) in a detachable mode, a support seat (3) is arranged on an inner side end face of the valve cover and stretches toward a valve cavity, a support (18) is fixedly connected at a free end of the support seat, an upper end shaft hole and a lower end shaft hole of the support are connected with two levels of leverages and a hollow valve ball (15) which is positioned in a ball sleeve in the middle of the support and serves as a sealing valve. The two levels of leverages take shaft holes at two ends of the support as supporting points and compose a two-level leverage collectively, and first levers (7) are connected together through a support upper end rotating shaft (6) and rotate around the rotating shaft with the rotating shaft as a fulcrum. A counter weight (4) and a floating ball (10) are respectively positioned at the two ends of a fulcrum crank support arm, and part of the gravity of the floating ball is overcome through the counter weight of the first levers.

Description

technical field [0001] The invention relates to a valve for automatically discharging condensed water and non-condensable gas from steam pipes and steam using equipment, especially a steam trap with a nominal pressure of PN10.0 and a displacement of up to 15000KG / H. Background technique [0002] As an important secondary energy source, steam is indispensable in many industrial fields. Steam traps are important self-operated control valves to ensure the normal operation of steam systems and save energy. With the development of science and technology and the continuous expansion of industrial scale, the requirements for the working pressure of steam traps are getting higher and higher. With the national requirements for energy saving and emission reduction, recycling is basically required, and recycling requires steam traps to have high performance. To recover the back pressure, a mechanical steam trap has to be selected. [0003] The steam trap is used in the steam pipe netw...

AI Technical Summary

Problems solved by technology

This limits the wall thickness of the float can not be increased without limit, that is, the pressure bearing capacity of the float is limited, and the maximum working pressure of the lever float steam trap is limited

[0006] The valve disc of the lever float steam trap is fixedly connected with the lever mechanism. When the valve is closed, the floating ball moves downward, driving the valve disc to quickly approach and closely contact with the valve seat. During this process, the valve disc is fixedly connected The disc on the lever mechanism will hit the valve seat, which will easily cause valve leakage and reduce the service life of the valve

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