A plane valve that allows the lintel to ventilate naturally and reduces the opening and closing force

Abstract

The invention discloses a planar valve capable of achieving natural ventilation of a door lintel and reducing opening and closing force. The planar valve capable of achieving natural ventilation of the door lintel and reducing the opening and closing force comprises a door body structure, a door lintel and embedded part system, a waterstop system, a supporting and limiting system and a track system. The door lintel and embedded part system comprises a ventilating device, a top waterstop embedded part, a lateral waterstop embedded part and a bottom waterstop embedded part. The ventilating device is arranged below a top waterstop behind a door, and a gap is formed between the ventilating device and a backboard of a door body, so that natural ventilation is achieved. The top waterstop is arranged on the rear flange of a top main beam. A lateral waterstop is arranged on the rear flanges of inner edge beams. A bottom watertop is arranged below a bottom beam arranged along a panel. Main rolling wheel devices are arranged in two edge beams between main beams. A lateral limiting device is arranged on a web of the outer edge beam at the ends of the main beams. A reverse limiting device is arranged on the panel between the edge beams at the ends of the main beams. The planar valve is suitable for a medium-waterhead or high-waterhead ship lock; air-etching cavitation of the door lintel and the bottom edge can be restrained, the valve opening and closing force is reduced, energy consumption is reduced, and the service life of the ship lock is prolonged.

Description

technical field [0001] The invention relates to a ship lock planar valve, in particular to a planar valve capable of allowing the lintel to ventilate naturally and reducing the opening and closing force, and belongs to the technical field of waterway gate devices. Background technique [0002] With the development of society, the water transportation industry is becoming more and more prosperous, and there are more and more ship locks. Flat valves are widely used because of their simple structure, convenient manufacture and maintenance. The erosion cavitation phenomenon, the pressure pulses generated by the lintel cavitation and the bottom edge cavitation feed back to each other, which makes the sound and vibration phenomenon very obvious at certain openings, which affects the safe operation of the lock. In addition, the opening and closing rods of medium and high water head flat valves are usually long, and the stability of the pressure rod is often encountered when closing...

AI Technical Summary

Problems solved by technology

[0002] With the development of society, the water transportation industry is becoming more and more prosperous, and there are more and more ship locks. Flat valves are widely used because of their simple structure, convenient manufacture and maintenance. The phenomenon of erosion cavitation, the pressure pulses generated by the cavitation of the lintel and the cavitation of the bottom edge feed back each other, which makes the sound and vibration phenomenon very obvious at certain openings, which affects the safe operation of the ship lock.

In addition, the opening and closing rods of medium and high water head flat valves are usually long, and the stability of the pressure rod is often encountered when closing the door. If the door body is equipped with a counterweight, the opening and closing force of the valve will be greatly increased.

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