Heating equipment for comprehensive utilization of waste heat in circulating water system coupled with steam peak regulation

Abstract

The invention provides a heat supply equipment for comprehensive utilization of waste heat of a circulating water system coupled with steam peak regulation, which belongs to the technical field of heat supply equipment and includes a heat pump unit, a pipeline system, a terminal heat source equipment, a heat exchange station and a terminal heat supply. The terminal heat source equipment, the heat pump unit, the heat exchange station and the terminal heat supply are connected in sequence through the pipeline system. The cooling water in the equipment is sequentially transported to the heat exchange station and the terminal for heating by the pipeline system, and the waste heat of the cooling water is recovered to prepare medium-temperature hot water in the range of 45-55 °C for domestic hot water and heating. Compared with the prior art, the embodiments of the present invention can complement each other, improve the utilization rate of waste heat, reduce the heating cost, improve the reliability of heating, and can seamlessly connect the heating system of the existing steam heat source to reduce the consumption of steam.

Description

technical field [0001] The invention belongs to the technical field of heating equipment, in particular to a heating equipment for comprehensive utilization of waste heat of a circulating water system coupled with steam peak regulation. Background technique [0002] In the traditional industrial cooling water circulation system, it is often necessary to cool the hot process medium. The industrial cooling water exchanges heat indirectly with the process medium through the heat exchangers of the equipment (such as air compressors, chillers, equipment cooling, process cooling, etc.). The hot process medium reduces the temperature during the heat exchange process, and the cooling water is heated and the temperature rises. The pipeline enters the upper end of the cooling tower, flows through the cooling tower, and conducts evaporative heat dissipation and mass transfer heat dissipation in the cooling tower to cool the high-temperature water. , and sent to the plant-wide circula...

AI Technical Summary

Problems solved by technology

For heat recovery in industrial cooling water circulation systems, water source heat pumps are traditionally used. If the recovered water temperature is higher than 45°C, the COP value is lower than 3.8, and the energy consumption of the heat pump is high; then the same calorific value, the energy consumption of the heat pump is equivalent to the calorific value of steam. There is no obvious advantage over the price; when the water temperature is lower than 45°C, its COP value can be higher than 4.0, the energy consumption of the heat pump is low, and the low-quality hot water obtained by the traditional heat pump is only used for bathing water or heating; The bath water is generally opened according to the time, and most of it is actually idle, and the heat in it can not play the role of waste heat and is used for heating

Separate heating, but cannot meet the load of extremely cold temperature

The bathing water pipe network is an open system, while the heating pipe network is a closed system, and the two systems cannot be integrated

[0004] Considering that the domestic heat is generally outside the factory, the cooling water circulation system is inside the factory, the distance between the pipes inside and outside the factory, heat preservation, circulation pump power and other factors, industrial circulating water heat recovery is generally not available in the factory, because compared with Due to the nearby convenient steam heat source, calorific value and price, heat recovery does not have much advantage because it cannot peak regulation, so it is rarely used

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