Series-connection jacking pressure non-negative pressure water supply device

Abstract

Disclosed is a series-connection jacking pressure non-negative pressure water supply device. When the device works and tap water feeding pressure is normal and can meet the using requirement of a water pump, an air exhaust device connected with a water storage tank is opened to enable tap water to enter the water storage tank, the air exhaust device is closed after the water storage tank is filled with water, then the tap water enters a water inlet of the water pump through an air storage tank, and at the moment the water pump automatically works to supply water in an overlapping and pressurization mode so as to meet the using requirement of a user. When the flow quantity of the tap water cannot meet the using requirement of the water pump, an air inflation device automatically operates, a controller is started at the same time, and high-pressure air enters the water storage tank, so that the water stored in the tank is forcibly squeezed to flow to the water pump completely, the stable pressure of the tap water is ensured, the water stored in the tank and the tap water are supplied to the water pump simultaneously, and the problem that the flow quantity of the tap water is not enough is solved. After the tap water recovers, the air exhaust device is automatically opened, the water storage tank is filled with tap water again, and the steps are executed in cycles.

Description

technical field [0001] The invention relates to a stacked pressure water supply equipment, in particular to a series top pressure non-negative pressure water supply equipment. Background technique [0002] The non-negative pressure water supply equipment in the prior art is generally directly connected in series with tap water for energy saving, and superimposed pressurized water supply is carried out. To replenish the stored water in the tank, the current method is generally to set the suction and exhaust valve on the tank to enter the air, or pre-charge the compressed gas, so as to alleviate the vacuum generation after the stored water in the tank drops, but this method The disadvantages are 1. If the suction and exhaust valve is installed to enter the air, the pressure in the tank will drop to zero and the pressure of the tap water will drop to zero. This is not allowed by the water company, because it affects the safety of public water supply, and at the same time the o...

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Problems solved by technology

[0002] The non-negative pressure water supply equipment in the prior art is generally directly connected in series with tap water for energy saving, and superimposed pressurized water supply is carried out. To replenish the stored water in the tank, the current method is generally to set the suction and exhaust valve on the tank to enter the air, or pre-charge the compressed gas, so as to alleviate the vacuum generation after the stored water in the tank drops, but this method The disadvantages are 1. If the suction and exhaust valve is installed to enter the air, the pressure in the tank will drop to zero and the pressure of the tap water will drop to zero. This is not allowed by the water company, because it affects the safety of public water supply, and at the same time the outside air enters It will bring in other bacteria, etc., which will easily cause water pollution; 2. If the pre-charged compressed gas can maintain the pressure of tap water, but when the compressed gas is released into the tank, it will easily cause the water in the tank to generate bubbles, and the bubbles will enter with the water flow The pump body makes the pump unable to work normally and stops the water supply. At the same time, the compressed gas cannot be recovered after being released, so that the equipment can only be used once

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