A pressure-stabilized non-negative pressure water supply system

Abstract

The invention discloses a pressure-stabilizing non-negative pressure water supply system, which comprises a water inlet pipe, a water inlet pipe voltage stabilizing device, a water supply power combination device and a water supply pipe. , after the water inlet pipe is processed and pressurized by the water supply power combination equipment, it is supplied to each user; the water inlet pipe pressure stabilization equipment includes a high-level water tank, a hydraulic cylinder and a pressurized cylinder. The high-level water tank is connected with the water inlet pipe through an L-shaped pipe. A replenishment valve is provided, and the bottom of the high-level water tank communicates with the pressurized cylinder through a folded pipe. The folded pipe is provided with a first electromagnetic control valve and a third check valve, and a liquid level sensor is built in the high-level water tank; the output shaft of the hydraulic cylinder It is fixedly connected with the piston in the pressurized cylinder, and the bottom end of the pressurized cylinder communicates with the water inlet pipe through the pressurized tube, and the second electromagnetic control valve and the fourth check valve are arranged on the pressurized tube.

Description

technical field [0001] The invention relates to the technical field of automatic water supply, in particular to a pressure-stabilized non-negative pressure water supply system. Background technique [0002] The non-negative pressure water supply is a pressurized water supply unit, which is directly connected to the municipal water supply network, and the water supply is superimposed in series on the basis of the residual pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure (the set pressure must be high According to the pressure demand of the direct supply area of ​​the community, generally not less than 1.2Kg) the secondary pressurized water supply equipment, the core of the pipe network superimposed pressure (no negative pressure) water supply equipment is how to prevent negative pressure during the operation of the secondary pressurized water supply system Pressure generation, elimina...

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Problems solved by technology

[0003] The current water supply non-negative pressure system transports water for a long time, and the equipment is easily corroded by water, resulting in corrosion of equipment and pipelines, and water leakage is easy to occur. Therefore, the present invention provides an anti-corrosion secondary water supply without negative pressure equipment to meet the needs of people. needs

At the same time, since the inlet municipal tap water pressure often fluctuates, if the pressure is lower than a fixed value, the outlet water supply pressure of the water supply system will fluctuate accordingly, resulting in unstable water pressure for users and even water hammer. An independent pressure stabilizing device is installed on the main inlet pipe of the negative pressure water supply system

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