Energy-saving water supply equipment of high-rise building

Abstract

The invention discloses energy-saving water supply equipment of a high-rise building, which comprises a low-area pressurizing unit, a high-area pressurizing unit, an auxiliary pump unit, a first check valve and a second check valve. The low-area pressurizing unit comprises more than two parallel main pumps, the high-area pressurizing unit comprises more than two parallel main pumps, the auxiliary pump unit comprises a first auxiliary pump and a second auxiliary pump, the inlet of the first auxiliary pump is connected with a water source, the outlet of the first auxiliary pump is connected with the outlet pipeline of the low-area pressurizing unit through the first check valve, the outlet of the first auxiliary pump is connected with the inlet of the second auxiliary pump through the first check valve, and the outlet of the second auxiliary pump is connected with the outlet pipeline of the high-area pressurizing unit through the second check valve. The energy-saving water supply equipment of the high-rise building has the advantages that the operating condition of water supply pumps in all areas of the high-rise building is improved and the energy-saving operation of the water supply equipment of the high-rise building is realized.

Description

technical field [0001] The invention relates to energy-saving water supply equipment, in particular to energy-saving water supply equipment for high-rise buildings. Background technique [0002] Usually, the water supply of high-rise buildings is vertically divided into high, medium and low zones. Each zone uses a set of independent water supply equipment for water supply, which is not related to each other. The water supply equipment pump parameters of each zone are only determined according to the water supply demand of the area. selection, the corresponding control system only controls and dispatches the supporting water pumps based on the water supply demand in the area. Since the domestic water supply is characterized by a large range of flow changes and a long time for medium and small flow water supply, the supporting water pumps of the water supply equipment in each district will be in a long time. Small and medium flow conditions, and usually centrifugal pumps have ...

AI Technical Summary

Problems solved by technology

[0004] The current common energy-saving measure is to add a small flow pump to the water supply equipment. In many cases, there are the following defects: 1. If the parameter selection of the small flow pump is large, it will bring new small flow problems

2. If the parameter selection of the small flow pump is small, the efficiency of the small flow pump itself will be too low. For example, the small flow pump with a DN40 caliber usually has an efficiency of only about 50% even if it operates at a rated flow rate.

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