Combined heat and power generation coupling heat supply load adjusting method and system

Abstract

The invention discloses a combined heat and power generation coupling heat supply load adjusting method and system and belongs to the technical field of centralized heat supply. A heat supply system comprises thermoelectric unit, a condenser, a cooling tower, a first station of a heat supply network, an absorption heat pump, a circulating water pump of the heat supply network, an electric adjusting valve, an Internet of things flowmeter, an Internet of things thermograph, an Internet of things pressure gauge and q heating stations, wherein q is greater than or equal 2. By considering influenceof factors such as meteorological parameters, pipeline characteristics, building characteristics and heat user characteristics comprehensively, a heat supply network heat load prediction model is established to predict a heat supply network heat load precisely. By combining a thermoelectric decoupling ability of the adsorption heat pump, on the one hand, the operating working condition of the thermoelectric unit is arranged reasonably to adjust electric and heat loads of units on a heat source side, and on the other hand, precise operation adjustment of heat supply on the heat supply networkside is achieved, so that the heating demand of the heat user is met effectively, and the combined heat and power generation coupling heat supply load adjusting method has relatively high actual application value.

Description

technical field [0001] The invention relates to the technical field of central heating, in particular to a heat and power cogeneration coupled heating load adjustment method and system based on heat load prediction of a heating network. Background technique [0002] The central heating system is one of the city's infrastructure and one of the signs of the city's modernization level. The central heating industry is developing rapidly in my country. By the end of 2016, the area of ​​central heating in my country was about 7 billion square meters, of which the area of ​​central heating with combined heat and power generation was about 3.5 billion square meters. The high-quality development of the central heating system is directly related to the urban development. modernization and the improvement of people's living standards. For the cogeneration central heating system, it not only shoulders the heating demand on the heating network side, but also shoulders the power generatio...

AI Technical Summary

Problems solved by technology

But in general, the heating load is affected by the outdoor ambient temperature, ambient humidity, solar radiation, wind speed, indoor temperature, pipe network characteristics and building characteristics. According to Swedish scholars, the heat loss of the pipe network can increase the heat load by 5%. -8%, the wind speed can increase the heat load by 1%-4%. In addition, the comprehensive factors of the building (including building characteristics and indoor environmental factors) have a huge impact on the heat load. It can be seen that the application numbers are 201510889154.5 and The prediction method announced by the patented technology of 201610415738.3 still has certain drawbacks

The patented technology with application number 201711498480.9 does not consider the change of the heating network load, but only adjusts the electric and thermal load matching adjustment of the heating system through the operation adjustment of the thermal power unit itself

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