Inner circulation air pressure tank water supply device

Abstract

The invention discloses an inner circulation air pressure tank water supply device. The inner circulation air pressure tank water supply device is mainly composed of a water pump, a control cabinet, a pressure detecting meter and an air pressure tank. The air pressure tank is mainly composed of a tank body and an air bag. In order to avoid stagnant water, a water distribution pipe is arranged in the air pressure tank and extends into the air bag for water filling, a water outlet of the air bag is additionally formed, and inner circulation is formed between a water inlet part and the water outlet part of the interior of the air bag, so that the excellent water quality in the air bag is guaranteed, and the possibility of accumulated water and the stagnant water in the air bag in a normal system is eliminated. The inner circulation air pressure tank water supply device has the beneficial effects of being simple in structure, convenient to install, low in cost and the like; in addition, the water supply pressure is stable, energy is saved, the water quality is sanitary, and the inner circulation air pressure tank water supply device can be widely suitable for the secondary water supply fields such as air pressure water supply, frequency conversion constant pressure water supply and non-negative-pressure pipe network pressure-superposed water supply.

Description

technical field [0001] The invention relates to the technical field of secondary water supply, in particular to an internal circulation air pressure tank water supply device. Background technique [0002] The air pressure tank is a pressure regulating device, usually used in air pressure water supply, frequency conversion water supply, constant pressure water supply and non-negative pressure water supply equipment. The pressure tank is the prerequisite for the water pump to go to sleep. Using the property of water with minimal compressibility, the water is stored in the tank by external force. The gas is compressed and the pressure increases. When the external force disappears, the compressed gas expands to discharge the water. Since the compression ratio of water is much smaller than that of gas, when there is a small flow leakage in the pipe network, the pressure will drop significantly, which will cause the water pump to start frequently. If the power frequency pump dire...

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Problems solved by technology

Therefore, the pressure tank has the advantages of adjusting flow, stabilizing pressure, energy saving and flexible installation in the water supply system, but it has the hidden danger of easily forming stagnant water and deteriorating water quality.

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