Constant-pressure energy-saving water supply equipment

The constant-pressure energy-saving water supply equipment comprises an air bag pressure tank, an efficient water conveying and exhausting tank, a water pump and an electric adjusting valve, the air bag pressure tank is connected with a pipe network through a water outlet pipe, and the top of the efficient water conveying and exhausting tank is connected with the water outlet pipe through an upper water outlet and an upper water outlet pipe; a water-gas separation plate is arranged in the middle of the efficient water delivery and exhaust tank to separate the efficient water delivery and exhaust tank into an upper cavity and a lower cavity, and a water-gas separator is arranged in the middle of the water-gas separation plate. The effect of increasing water flow is achieved; by arranging the electric adjusting valve, constant-pressure water supply of a pipe network can be guaranteed according to set pressure adjustment, once the front pressure of the electric adjusting valve reaches the set lower-line pressure