A vacuum suppressor for water supply without negative pressure

Abstract

The invention discloses a vacuum suppressor for water supply without negative pressure. The vacuum suppressor comprises a protective cover installed at the exhaust port of a steady flow tank and a floating ball bucket, and the floating ball bucket is fixed on the stable air tank through the upper cover of the floating ball bucket. The exhaust port of the flow tank, the body of the float bucket is located in the steady flow tank, a communication hole is arranged on the barrel wall of the float bucket, an intake and exhaust hole is arranged on the upper cover of the float bucket, and the inside of the float bucket is provided with The upper and lower floating balls can move up and down along the inner wall of the floating ball bucket. There is a sealing ring matched with the upper floating ball on the edge of the intake and exhaust holes. There is at least one buffer ball between the upper floating ball and the lower floating ball. The diameter of the buffer ball is smaller than that of the upper floating ball and the lower floating ball. During the exhaust process of the vacuum suppressor for water supply without negative pressure, the floating ball will not be in contact with the intake and exhaust. The hole is violently impacted, the vacuum suppressor has a long service life, the floating ball and the intake and exhaust holes have a good sealing effect, and there is no water seepage.

Description

technical field [0001] The invention relates to a vacuum suppressor, in particular to a vacuum suppressor installed on a steady flow tank in a non-negative pressure water supply equipment. Background technique [0002] Non-negative pressure water supply equipment is a secondary energy-saving water supply equipment that is directly connected to the tap water pipe network and will not have any side effects on the tap water pipe network. Fully enclosed, pollution-free, small footprint, fast installation, reliable operation, convenient maintenance and many other advantages. The steady flow tank is an important equipment in the non-negative pressure water supply, which is responsible for the function of water storage and steady flow. A vacuum suppressor needs to be installed on the steady flow tank to ensure that the air in the steady flow tank can be discharged smoothly during the water storage process. It will not overflow, and when the tap water flow of the municipal pipe net...

AI Technical Summary

Problems solved by technology

However, the vacuum suppressor with this structure has insufficient sealing force of the floating ball, and after the steady flow tank is filled with water, seepage is likely to occur in the intake and exhaust holes. It is exactly the same as the channel for the air to discharge the steady flow, so that when the municipal tap water replenishes the steady flow tank, the gas in the steady flow tank is quickly discharged from the original path, and it cannot restrict the flow of the tap water entering the steady flow tank. The tap water entering the steady flow tank will form large waves in the tank and cause the floating ball to rise rapidly. During the rising process, the floating ball jumps up and down with the waves, and repeatedly collides with the intake and exhaust holes until the tap water is full and stable. In the flow tank, a large amount of water will overflow during repeated collisions between the floating ball and the intake and exhaust holes, and this impact is also likely to cause deformation of the floating ball or the intake and exhaust holes, resulting in water overflow

For this reason, the vacuum suppressor in the prior art needs to be provided with a drain port on the protective cover. In order to prevent the water overflowing from the vacuum suppressor from being directly discharged on the ground, some users connect an overflow pipe to the drain port of the protective cover and drain the overflow The pipe is inserted into the sewer pipe. Although the site environment is kept clean and tidy in this way, when it is necessary to add air to the steady flow tank, the dirty gas in the sewer will enter the steady flow tank through the overflow pipe and the drain port. Pollution from tap water in

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