Three-fluid sleeve type heat-pipe heat exchanger

Abstract

The invention provides a three-fluid sleeve type heat-pipe heat exchanger, and relates to the technology of a heat exchanger. The three-fluid sleeve type heat-pipe heat exchanger comprises a heat pipe, an upper clapboard, a middle clapboard, a lower clapboard, a peripheral interface and three flow channels, i.e. a heat pipe lower layer flow channel arranged between the lower clapboard and the middle clapboard, a heat pipe upper layer flow channel arranged between the middle clapboard and the upper clapboard, and a flow channel formed by an inner pipe of a heat pipe bundle, an upper header box and a lower header box. When the three-fluid sleeve type heat-pipe heat exchanger runs, thermal fluid passes through the heat pipe lower layer flow channel or a sleeve inner layer pipe flow channel, the heat pipe is quickly started after the heat is absorbed from a lower end and an inner layer pipe, and the whole pipe is even in temperature and free from warm spots, and two cold fluids pass through the other two flow channels, so that the heat exchange efficiency can be greatly improved. The three-fluid sleeve type heat-pipe heat exchanger is a device where the dividing wall type heating is carried out on a plurality of cold fluids by one thermal fluid at the same time, the device is used for the heat exchange of the high-temperature fluid, and the heat energy of the high-temperature fluid is used for heating up the other two cold fluids, so that the cold fluids with different properties are higher in outlet temperature, the outlet temperature of the thermal fluid can be reduced, and the thermal pollution can be avoided. The three-fluid sleeve type heat-pipe heat exchanger is particularly suitable for the condition where the fluid cooling operation is not large in pressure, and the outlet work temperature is required to be higher.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a three-fluid heat exchanger, which can achieve simultaneous heat exchange of three fluids without mixing with each other. Background technique [0002] Metallurgical industry, petrochemical equipment, building materials manufacturing and other high energy-consuming industries will generate a lot of waste heat. In order to improve the efficiency of related equipment, make full use of energy, and achieve the purpose of energy saving and emission reduction, heat exchangers are generally used, but the temperature The recovery and utilization of high-temperature flue gas waste heat exceeding 550°C is technically difficult. Therefore, the recycling of high-temperature flue gas waste heat in various industries often goes into misunderstandings, that is, converting high-grade heat energy into low-grade heat energy for use, preheating air The outlet temperature is lower. In addi...

AI Technical Summary

Problems solved by technology

It utilizes the sleeve-type heat pipe, and the inner tube of the heat pipe bundle forms a flow channel, which is convenient for the fluid to flow through and participate in heat exchange, and realizes simultaneous heat exchange of three fluids or multiple fluids; at the same time, the sleeve-type heat pipe also has a high uniformity temperature characteristics, enhance the heat transfer process, and improve the defects of low heat exchange efficiency of traditional heat exchangers

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