Water storage type low-noise water inlet valve body and anti-siphon water inlet valve water inlet mute method

Abstract

The invention relates to a water storage type low noise inlet valve body and a method; the inlet valve body comprises an inlet valve main body, and an inlet pipe connected with the inlet valve main body and supply water for the inlet valve main body; a position, higher than the inlet valve highest water level, of the inlet valve main body is provided with an open to atmosphere port; the liquid level in the inlet valve body is directly connected with the atmosphere through the open to atmosphere port, thus realizing anti-siphon; a water outlet channel of the inlet valve main body comprises a main water path and a plurality of auxiliary water paths connected with the main water path; a water inlet channel of the inlet valve main body can simultaneously inject water into the main water path and the auxiliary water paths; water outlet flow rate of the auxiliary water paths is smaller than the water inlet flow rate; the auxiliary water paths store water, and separate the main water path from the open to atmosphere port; the main water path and the atmosphere are connected in an isolation manner. The inlet valve body can satisfy the ENISO3822 requirements in which water inflow noises of the inlet valve need to be lower than 20 db, and can satisfy EN1717 inlet valve anti-siphon requirements. The inlet valve body is simple in structure, convenient in mounting, and low in cost.

Description

technical field [0001] The invention relates to the field of water inlet valves, more specifically, to a water storage type low-noise water inlet valve body and a method for realizing the silence of an anti-siphon water inlet valve when water is ingested. Background technique [0002] The anti-siphon structure of the common water inlet valve on the market is as follows: figure 1 , figure 2 , image 3 shown. [0003] figure 1 , figure 2 The shown anti-siphon structure of the water inlet valve is provided with an anti-siphon rubber pad on the water outlet channel. When the water inlet valve fills the water tank, the water pushes the anti-siphon rubber pad to block the air inlet of the water inlet valve to prevent pressure water from leaking. After spraying out, after the water inlet valve stops water injection, the anti-siphon rubber pad resets under the action of gravity or its own elasticity. Keep unimpeded from the air inlet to the water level of the water tank to p...

AI Technical Summary

Problems solved by technology

However, in practice, the outlet water of this structure spirals down along the pipe wall. When the pressure of the water inlet pipe is high, the water outlet is relatively rapid, and it is easy to suck air from the air inlet to generate noise.

[0006] The European water inlet valve standard EN ISO 3822 requires the noise of the water inlet valve to be lower than 20 decibels when the water is in, while image 3 Inlet valve shown is difficult to meet EN ISO 3822 requirements

[0007] Therefore, it is difficult to find water inlet valves that meet European standards in the market, especially bottom-entry water inlet valves.

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