Energy dissipating and slow closing type air feeding and exhausting valve

Abstract

The invention discloses an energy dissipating and slow closing type air feeding and exhausting valve. The energy dissipating and slow closing type air feeding and exhausting valve comprises a valve body, a valve cover which is positioned at the upper part of the valve body, and a floating barrel which can move up and down in the valve body, wherein an upper flowing chamber and a lower flowing chamber are formed in the valve body; the lower flowing chamber is used as a water inlet; the floating barrel is positioned in the upper flowing chamber; a guide rod is connected to the top part of the floating barrel, and the guide rod is fixed to a piston at the upper part of the valve cover through a nut; the piston is arranged in a cylinder; a throttle screw is arranged at the upper part of the cylinder and is fixed to the valve cover through a throttle nut; a steel ball is arranged in an empty cavity in the upper side edge of the cylinder; a spherical cap and a spiral curved water stopping plate are arranged on the valve body at the bottom part of the upper flowing chamber; and a lower guide rod is arranged in the lower flowing chamber. According to the energy dissipating and slow closingtype air feeding and exhausting valve, the spiral curved water stopping plate is additionally arranged at the bottom part of the valve body, and the throttle screw and the piston structure are additionally arranged on the top part of the valve cover, and thus the problem of water impacting and water hammer can be solved with low cost and high efficiency.

Description

technical field [0001] The invention relates to the field of intake and exhaust, in particular to an energy-dissipating slow-closing intake and exhaust valve. Background technique [0002] Inlet and exhaust is a valve that is often used on tap water pipes to replenish air to the pipe and remove air from the pipe in time. Its working principle is: relying on the change of water level in the valve to cause the buoy (or floating ball) to rise and fall to automatically open and close the valve. The valve is generally installed at the high point of the pipeline. When the water is cut off in the pipeline, the buoy drops and the valve opens and the air enters the pipeline in time to avoid vacuum damage to the pipeline; when the pipeline is filled with water, the air in the pipeline and the valve is removed in time; thus ensuring The flow of water in the pipeline is unimpeded. [0003] When the exhaust process of the valve is about to end, a large amount of water pours into the va...

AI Technical Summary

Problems solved by technology

Although this method can serve the purpose of waterproof hammer, when there is a large water flow, the speed of the waterproof hammer flap will be blown up very fast, and the length of the connecting pipe is not enough to slow down the speed of the waterproof hammer flap, and finally it will be separated from the pallet. impact, making noise and shortening its service life

The movable waterproof hammer flap is often impacted by high-pressure water flow and moves back and forth on the connecting pipe, which requires high components and naturally increases the cost

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