Non-negative pressure variable frequency water supply equipment
A water supply equipment, no negative pressure technology, applied in the direction of water supply equipment, water supply main pipeline, water supply pipeline system, etc., can solve the problems of municipal pipe network negative pressure, secondary water pollution, waste of electric energy, etc., to save electric energy and suppress negative pressure pressure effect
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[0011] The present invention will be further described below in conjunction with the drawings.
[0012] Such as figure 1 As shown, a non-negative pressure variable frequency water supply equipment of the present invention includes a steady flow compensator 3, a controller 2, a variable frequency control cabinet 4, a pressure sensor a5, a pressure sensor b7, and a water pump 6. The steady flow compensator 3 and The municipal pipe network 1 is directly connected in series, and the controller 2 is connected with the steady flow compensator 3. The pressure sensor a5, the water pump 6 and the frequency conversion control cabinet 4 form a closed control system. One end of the closed control system is connected to the municipal pipe network 1. The closed control system is connected to the user pipe network 8 through the pressure sensor b7
[0013] The controller 2 can be a single-chip microcomputer. Such as figure 1 As shown, by detecting the actual pressure and comparing it with the s...
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