Analysis of jet pump technology for central heating secondary network unit
MA Lipeng
FAN Linda
Abstract：In response to the severe hydraulic imbalance and high electricity consumption of the centralized heating system in a certain residential area of Tianjin City,a simulation model is established using the Viheating hydraulic calculation software to compare and analyze the operating characteristics of the jet pump system and the original balance valve system.The results show that the jet pump system can reduce the frequency of the circulating pump to 26.00 Hz,decrease the flow by approximately 50%,reduce the head by approximately 59%,and lower the power of the circulating pump from 25.07 kW to 7.36 kW.During the heating season,it can save 64 250 kWh of electricity and the investment recovery period is 6.16 a.The jet pump technology can effectively solve the problem of hydraulic imbalance in the secondary network,achieve the goal of energy-saving and emission reduction,and has good economic and social benefits.
Keywords：hydraulic imbalancejet pumpcentralized heatingenergy-saving
Publication Date：2026-02-25
Online Publishing Date：2026-03-31(First online date of this platform, not the publication date of the document)
Pages：3( 92-94 )