Device for testing multi-phase flow and heat transfer characteristics of supercritical water circulating fluidized bed

Abstract

The invention discloses a device for testing multi-phase flow and heat transfer characteristics of a supercritical water circulating fluidized bed, which consists of an experimental section, a circulating system and a testing system, and comprises a lifting pipe, a cyclone separator, a filter, a feeding bin, a vertical pipe, an L-shaped material return valve, a circulating water tank, a first plunger pump, a second plunger pump, a damping buffer, a flowmeter, a first heat regenerator, a second heat regenerator, a first heater, a second heater, a back pressure valve, a cooling water tank, a cooling water pump, a first cooler, a second cooler, an open cooling tower, a plurality of regulating valves and other parts, and a plurality of K-type thermocouples, pressure difference sensors, capacitance probes and other testing devices. The device for testing multi-phase flow and heat transfer characteristics of the supercritical water circulating fluidized bed lays a foundation for research onthe multi-phase flow and heat transfer characteristics of the supercritical water circulating fluidized bed reactor, establishment of design theory, optimization of operation conditions and popularization of application.

Description

technical field [0001] The invention relates to multiphase flow technology, in particular to a testing device for a supercritical water circulating fluidized bed, in particular to a device for testing multiphase flow and heat transfer characteristics of a supercritical water circulating fluidized bed. Background technique [0002] In recent years, atmospheric smog pollution has occurred frequently in most areas, and the air quality index has long been at the level of heavy and severe pollution. As a typical example of ecological environmental pollution, smog has caused varying degrees of harm to people's lives, national economy and social development, and the use of fossil energy such as coal and oil is the main cause of smog. Therefore, on the one hand, there is an urgent need to develop clean coal technology to improve coal utilization efficiency and reduce pollution emissions; Shortages, environmental pollution and the major problems of social and economic sustainable de...

AI Technical Summary

Problems solved by technology

The bubble behavior of the bubbling fluidized bed also brings about the reduction of reactor efficiency and the difficult problem of reactor scale-up

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