A simulation calculation method and device for heat exchanger flow rate

Abstract

Embodiments of the invention disclose a simulation calculation method and apparatus for flow of a heat exchanger. The method comprises the steps of determining a flow simulation model corresponding to each liquid distribution capillary tube contained in the heat exchanger based on a configuration parameter set corresponding to each liquid distribution capillary tube contained in the heat exchanger; based on the flow simulation model corresponding to each liquid distribution capillary tube and preset initial flow corresponding to each liquid distribution capillary tube, obtaining an inlet and outlet pressure difference corresponding to each liquid distribution capillary tube; and when the inlet and outlet pressure differences of the liquid distribution capillary tubes are determined to be not completely same, adjusting the initial flow of each liquid distribution capillary tube based on the inlet and outlet pressure difference of any liquid distribution capillary tube. According to the method and the apparatus, the initial flow of the liquid distribution capillary tubes can be adjusted according to the inlet and outlet pressure differences corresponding to the liquid distribution capillary tubes and obtained according to the preset initial flow, so that a simulation result is obtained, the flow simulation accuracy of the heat exchanger is improved, and accurate simulation data is provided for research and development of the heat exchanger.

Description

technical field [0001] The present application relates to the technical field of simulation analysis, in particular to a simulation calculation method and device for heat exchanger flow. Background technique [0002] With the continuous development of simulation technology, simulation technology is gradually applied to the field of air conditioning. Specifically, simulation technology has played an extremely important role in the design and development of air-conditioning heat exchangers. The simulation design of the heat exchanger is to guide the development and design of the heat exchanger through the simulation results obtained after simulating the flow of the heat exchanger, so as to design a heat exchanger with better performance. [0003] Under the existing technology, the simulation calculation of the flow rate of the heat exchanger mainly adopts the following methods: [0004] Calculate the estimated length of the liquid separation capillary based on the quotient o...

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Problems solved by technology

[0005] However, in this way, only the cross-sectional area and actual length of the liquid separation capillary set in the heat exchanger are considered, and other factors that may affect it are not considered, so the simulation calculation of the flow rate of the heat exchanger may be The results are inaccurate, which affects the design and development of the heat exchanger

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