Suction and exhaust valve floating ball and suction and exhaust valve composed of floating ball

Abstract

The invention discloses a suction and exhaust valve floating ball capable of being adjusted according to system pressure and a suction and exhaust valve composed of the floating ball. The suction andexhaust valve floating ball comprises a floating ball shell (4), an adjusting mechanism used for adapting to the outside pressure is arranged in the floating ball shell (4), and the adjusting mechanism is a piston-shaped mechanism or a balloon-shaped mechanism in an inner cavity of the floating ball shell (4). Compared with the prior art, the suction and exhaust valve floating ball can be adjustedaccording to the system pressure, adapts to change of the pressure in a conveying pipeline to a certain extent, and it is ensured that the conveying pipeline is safe and smooth.

Description

technical field [0001] The invention relates to a floating ball of an intake and exhaust valve and the formed intake and exhaust valve. Background technique [0002] There is often air inside the water pipeline, and under the joint action of water flow and air flow, pipe bursts often occur, especially in the transmission system with long pipelines and large slope fluctuations, multiple undulations of the pipeline often occur. In this case, if there is a water stop or gas accumulation in the pipeline, the water flow will be poor or even the water will be cut off. [0003] In addition, many water pipelines use PVC pipes. When the water is too large, due to the negative pressure in the pipes, it is easy to flatten the pipes, deform or rupture. These are prone to large-scale water cutoffs, which not only affect the People's normal life also consumes a lot of manpower and material resources for emergency repairs, which has brought great problems to the normal water supply. [0...

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent with the publication number of Chinese patent application CN104613207 A discloses a "pipe exhaust valve". The valve body is installed at the end of the drain pipe body. The water inlet and discharge port connected to the outside, the pipeline exhaust valve includes a gas collection device inside the valve body and a buoy exhaust device, the gas collection device is arranged at the bottom of the valve body, and the buoy exhaust device is located In the upper part of the device, although this pipeline exhaust valve can be designed to collect and exhaust gas, and there is an air-collecting ring inside the valve to concentrate and discharge the air bubbles in the water flow through the valve, but this exhaust valve uses The principle of the buoy and the lever is prone to failure. In addition, when the air flow in the pipe is too large, it is easy to directly blow the buoy up, thereby blocking the exhaust port. Due to the large internal and external pressure difference, the exhaust port cannot be opened. , it will not play the role of exhaust, and the reliability is relatively poor

[0007] However, in actual use, especially in the conveying system with long conveying pipelines and large slope fluctuations, it often occurs that the float ball in the exhaust valve is squeezed and deformed when the pressure of the inlet and exhaust valves is too high. Lead to the failure of the intake and exhaust valves, and seriously cause the collapse of the delivery pipeline system

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