Energy-saving micro-resistance adjustable self-balancing check valve

Abstract

An energy-saving micro-resistance adjustable self-balancing check valve comprises a valve spool plate, a valve spool plate balance plate and a balance block, wherein the valve spool plate is mounted in a valve cavity through a rotary shaft, can be sealed with a valve inlet sealing ring and is rotatably opened and closed in the valve cavity, the valve spool plate balance plate is connected with a rotary shaft end of the valve spool plate and forms a certain angle with the valve spool plate, and the balance block is mounted on the valve spool plate balance plate. The energy-saving micro-resistance adjustable self-balancing check valve is characterized in that an obtuse angle larger than 90 degrees is formed by the valve spool plate balance plate and the valve spool plate of a horizontally mounted check valve, an acute angle smaller than 90 degrees is formed by the valve spool plate balance plate and the valve spool plate of a vertically mounted check valve, and a valve spool plate balance device comprises the valve spool plate balance plate and the balance block mounted on the valve spool plate balance plate and includes an adjustable type, a rolling-ball type, a swing type and a magnetic type.

Description

technical field [0001] The invention relates to an energy-saving micro-resistance adjustable self-balancing check valve, which is suitable for all liquid media and belongs to the technical field of comprehensive energy saving and emission reduction and the technical field of check valves. Background technique [0002] Check valve is a commonly used valve in many pipeline transportation processes to prevent the backflow of transported liquid; but now the check valves on the market are opened by liquid pressure, and the impact pressure of the flowing liquid is always needed to keep the check valve plate in place. Opening, this consumes considerable energy and pressure drop; although some check valve plates are very thin and light, the pressure drop is small when the liquid flows through the valve, and the energy consumption is low, but this check valve Because the valve plate is too thin and light, when there is no inlet liquid pressure, the sealing performance of the valve pl...

AI Technical Summary

Problems solved by technology

[0002] Check valve is a commonly used valve in many pipeline transportation processes to prevent the backflow of transported liquid; but now the check valves on the market are opened by liquid pressure, and the impact pressure of the flowing liquid is always needed to keep the check valve plate in place. Opening, this consumes considerable energy and pressure drop; although some check valve plates are very thin and light, the pressure drop is small when the liquid flows through the valve, and the energy consumption is low, but this check valve Because the valve plate is too thin and light, when there is no inlet liquid pressure, the sealing performance of the valve plate is poor, and some of them cannot play the role of check; now only Wei Boqing's patent "201120251731.5 check valve" can be used in the market. After the valve plate is opened, the pressure drop is no longer consumed to keep the valve plate open, but there are many ways to realize that the valve plate is opened without consuming pressure drop to keep the valve plate open, and the present invention is four of them

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