Pressure stabilizing type non-negative pressure water supply system

Abstract

The invention discloses a pressure stabilizing type non-negative pressure water supply system which comprises a water inlet pipe, a water inlet pipe pressure stabilizing device, a water supply power combination device and a water supply pipe. The water inlet pipe pressure stabilizing device is integrally arranged on the water inlet pipe communicated with a municipal tap water pipe, and the water inlet pipe is supplied to all users after being treated and pressurized by the water supply power combination device; the water inlet pipe pressure stabilizing equipment comprises a high-level water tank, a hydraulic cylinder and a pressurizing barrel, the high-level water tank is communicated with the water inlet pipe through an L-shaped pipe, a water replenishing valve is arranged on the L-shapedpipe, the bottom of the high-level water tank is communicated with the pressurizing barrel through a folding pipe, a first electromagnetic control valve and a third check valve are arranged on the folding pipe, and a liquid level sensor is arranged in the high-level water tank; and an output shaft of the hydraulic cylinder is fixedly connected with a piston in the pressurizing barrel, the bottomend of the pressurizing barrel is communicated with the water inlet pipe through a pressurizing pipe, and a second electromagnetic control valve and a fourth check valve are arranged on the pressurizing pipe.

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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