Pressure water supply device

Abstract

The invention discloses a pressure water supply device. According to the pressure water supply device, a water storage tank is a sealed tank body, a water inlet and a water outlet are formed in the lower surface of the water storage tank to achieve water inlet and water outlet correspondingly, water in an external water supply pipe flows into the water storage tank through a water inlet channel and the water inlet, and the water in the water storage tank flows to a water requiring pipe through the water outlet and a water outlet channel; the water inlet and the water outlet are formed in the lower surface of the water storage tank, so that all water can flow out of the water storage tank, and the emptying rate of the water storage tank is improved; when water needs to be drained outwards, a three-way valve enables an air pump to be in communication with the water storage tank, the water storage tank is inflated, the air pressure of the upper space of the water storage tank is increased, and water is drained outwards in an accelerated mode; when drainage is stopped, the air pump stops inflating, the three-way valve communicates the water storage tank with the outside through the air inlet and outlet end of an air supply and outlet pipe, air in the water storage tank is discharged, and the air pressure is reduced; and according to the pressure water supply device, water is drained in an inflation mode during inflation work, high air pressure cannot be continuously kept in the pressure water supply device for a long time after the pressure water supply device stops, and danger caused by too large internal pressure is prevented.

Description

technical field [0001] The invention relates to the field of water supply equipment, and further relates to a pressure water supply device. Background technique [0002] The pressure tank is a commonly used pressure water storage device nowadays. A diaphragm or air bag is installed inside the pressure tank. The diaphragm or air bag divides the inside of the pressure tank into an air storage room and a water storage room. The pressure at the water outlet is relieved by pre-filling the pressure in the air storage room. Then use the pressure difference inside and outside to squeeze out the water in the bucket. [0003] The pressure barrel must be sealed at the diaphragm / airbag and the externally inflated part. Once there is an unsealed part, resulting in pressure leakage, the entire function of the pressure barrel will not work; the diaphragm / airbag is used to squeeze the water, so the water in the barrel cannot It is completely squeezed out, and bacteria are easy to breed ins...

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Problems solved by technology

[0003] The pressure barrel must be sealed at the diaphragm / airbag and the externally inflated part. Once there is an unsealed part, resulting in pressure leakage, the entire function of the pressure barrel will not work; the diaphragm / airbag is used to squeeze the water, so the water in the barrel cannot It is completely squeezed out, and it is easy to breed bacteria inside

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