Water-passing air-stop device for air pressure water tank

Abstract

The invention relates to the technical field of firefighting water supply equipment, in particular to a water flowing and air stopping device with an air-pressure water tank. The water flowing and air stopping device comprises the air-pressure water tank, a water outlet pipe and a floating ball, and is characterized by further comprising an air stopping barrel and an end cover, the air stopping barrel is fixedly arranged on a water outlet inside the air-pressure water tank, the lower end of the air stopping barrel is fixedly connected with the end cover, an air vent hole is formed in the upper end surface of the air stopping barrel and is deviated from the center of the upper end surface of the air stopping barrel so that air pressure cannot be generated in the barrel, water flow inlets are formed in the middle circumferences of the side walls of the air stopping barrel, the floating ball is arranged in the air stopping barrel, a water flow outlet is formed in the center of the end cover, the water outlet pipe is fixedly connected with the end cover, and the diameter of the water flow outlet is smaller than that of the floating ball. The water flowing and air stopping device with the structure has the advantages of simple structure, convenience in use and maintenance, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of fire-fighting water supply equipment, in particular to a water-passing and air-stopping device for a pneumatic water tank. Background technique [0002] As we all know, fire water supply equipment is usually composed of a pneumatic water tank, an air compressor, a drainage pump and a nitrogen bottle. The water inlet on the water tank is sealed by the sealing cover, the air compressor is connected with the pressure hole of the air pressure water tank through the one-way valve, the nitrogen bottle is connected with the air inlet of the air pressure water tank through the pressure regulating valve, and the drain pump is connected through the outlet The water pipe is connected with the water outlet. Since the fire-fighting water supply equipment must be used to extinguish the fire with water, and to avoid the gas drainage from fueling the flame, a gas stop device is usually installed on the water outlet. Some...

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Problems solved by technology

[0002] As we all know, fire water supply equipment is usually composed of a pneumatic water tank, an air compressor, a drainage pump and a nitrogen bottle. The water inlet on the water tank is sealed by the sealing cover, the air compressor is connected with the pressure hole of the air pressure water tank through the one-way valve, the nitrogen bottle is connected with the air inlet of the air pressure water tank through the pressure regulating valve, and the drain pump is connected through the outlet The water pipe is connected with the water outlet. Since the fire-fighting water supply equipment must be used to extinguish the fire with water, and to avoid the gas drainage from fueling the flame, a gas stop device is usually installed on the water outlet. Some existing gas stop devices use Float-type air-stop valve is used to stop air. The disadvantage is that the valve stem is prone to corrosion and stuck in water because all parts of the float-type air-stop valve are missing during use. The upper end of the water outlet of the air pressure water tank is provided with a water inlet pipe, one side of the water inlet pipe is provided with a water inlet, and a floating ball is arranged in the water inlet pipe. The disadvantage is that the structure is unreasonable. When the fireman quickly opens the valve, the floating ball The impact of the water at the inlet of the water flow can easily push the float to the outlet, causing the outlet to be blocked and delaying fire fighting

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