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Intelligent water supply system

An intelligent water supply and water pump technology, applied in the mechanical field, can solve the problem that the cooling water supply system cannot meet the cooling water volume and cooling speed, and achieve the effect of eliminating water hammer effect, avoiding impact and prolonging the service life

Inactive Publication Date: 2013-06-05
QINGDAO RUIFENG GAS
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  • Abstract
  • Description
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Problems solved by technology

[0003] The invention proposes an intelligent water supply system, which solves the problem that the existing cooling water supply system cannot meet the increasing cooling water volume and cooling speed

Method used

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] The invention provides a water supply system controlled by a PLC controller, such as figure 1 As shown, logic control is performed by the PLC controller 10, and the frequency converter 20 is controlled by the PLC controller to realize closed-loop automatic adjustment of constant pressure and variable water supply. The system uses three identical water pumps 30 to operate in parallel, and adopts a dual-purpose and one-standby working mode, that is, two water ...

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Abstract

The invention provides an intelligent water supply system which solves the problem that an existing cooling water supply system cannot meet increasing cooling water volume and cooling speed. The intelligent water supply system comprises three water pumps, a frequency converter, a programmable logic controller (PLC), a normal water supply far-end pressure sensor, a fire-fighting water supply far-end pressure sensor, a cooling circulating water pipe network pressure sensor, a first bypass valve and a second bypass valve, wherein the three water pumps operate in parallel, and the PLC outputs logic control signals and controls the frequency converter. The intelligent water supply system is stable in starting, starting currents can be limited within rated currents, and thus impact on a power grid in starting is avoided; due to the fact that average rotating speed of the water pumps is reduced, service lives of components of the water pumps, valves and the like can be prolonged; and a water hammer effect in starting and shutdown can be eliminated.

Description

technical field [0001] The invention relates to the mechanical field, in particular to an intelligent water supply system. Background technique [0002] With the development of modern equipment, the cooling water supply system of ordinary equipment can no longer meet the cooling water supply conditions required by enterprises, and due to the high precision of equipment, the required cooling water volume and cooling speed are also increasing. Contents of the invention [0003] The invention proposes an intelligent water supply system, which solves the problem that the existing cooling water supply system cannot meet the increasing cooling water volume and cooling speed. [0004] Technical scheme of the present invention is realized like this: [0005] An intelligent water supply system, comprising: three water pumps running in parallel; a frequency converter to control the speed of the motor of the water pump; a PLC controller to output logic control signals to control the...

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Application Information

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IPC IPC(8): E03B1/00E03B7/07E03B5/00
Inventor 满起祥谢炳文臧玉华
Owner QINGDAO RUIFENG GAS
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