High-speed intake and vent valve provided with water-hammer-resistant device

Abstract

The invention relates to a high-speed intake and vent valve provided with a water-hammer-resistant device. The high-speed intake and vent valve comprises a valve body, wherein a valve deck is fixed on the top of the valve body; trace vent valve seats are arranged on the valve deck; the valve body is internally provided with a body cavity and an inlet end; a clapboard is arranged between the body cavity and the inlet end; a water-hammer-resistant valve element is arranged in the inlet end; through holes are formed in the water-hammer-resistant valve element; a buffer spring is arranged in the center of the upper end surface of the water-hammer-resistant valve element; valve element guiding rods are separately arranged on two sides of the upper end surface of the water-hammer-resistant valve element; a floating ball is arranged in the body cavity; and a guiding rod is fixed on the bottom of the floating ball. According to the high-speed intake and vent valve, the water-hammer-resistant device is arranged in the intake and vent valve, so that the size of the valve is reduced, and the weight of the valve is reduced. The total of the areas of the through holes in the water-hammer-resistant valve element is larger than the area of the path of the valve, so that the flow of passing fluid is increased; and great energy which is generated suddenly in the pipeline is slowly absorbed by the water-hammer-resistant valve element and the buffer spring on the water-hammer-resistant valve element, so that a water hammer is effectively avoided.

Description

technical field [0001] The invention relates to the production field of intake and exhaust valves, in particular to a high-speed intake and exhaust valve with a built-in anti-hammer device. Background technique [0002] When the valve is suddenly opened or closed, a large flow of water is generated, causing water hammer. Since the pipe wall is smooth, under the impact of the inertia of the water flow, the hydraulic force quickly reaches the maximum, causing damage to the pipe and valve body. The usual high-speed intake and exhaust valves do not have an integrated anti-hammer device. The anti-hammer device is designed as an independent valve, which is large in size and heavy in weight. It is necessary to consider the influence of the entire valve on the pipeline when installed on the pipeline, and there are also a series of settings such as support. The problem. Although some anti-hammer devices installed in the valve body can alleviate the water hammer, they usually reduce...

AI Technical Summary

Problems solved by technology

The usual high-speed intake and exhaust valves do not have an integrated anti-hammer device. The anti-hammer device is designed as an independent valve, which is large in size and heavy in weight. It is necessary to consider the influence of the entire valve on the pipeline when installed on the pipeline, and there are also a series of settings such as support. The problem

Although some anti-hammer devices installed in the valve body can alleviate the water hammer, they usually reduce the flow rate and affect the transmission efficiency of the pipeline system.

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