Intelligently-controlled pulsation tube bundle heat exchange assembly molten salt heat storage tank

Abstract

The invention provides an intelligently-controlled pulsation heat exchange system. The intelligently-controlled pulsation heat exchange system involves a heat storage tank, a pulsation generating device, pulsation tube bundle heat exchange assemblies, a regulating valve and a bypass valve, wherein the pulsation tube bundle heat exchange assemblies are arranged in the heat storage tank and are connected with the pulsation generating device; the pulsation generating device is connected with an inlet of the pulsation tube bundle heat exchange assemblies through an inlet pipeline, an outlet of thepulsation tube bundle heat exchange assemblies is connected with the pulsation generating device through an outlet pipeline, the regulating valve is arranged on the part, between the pulsation generating device and the heat storage tank, of the inlet pipeline, a bypass pipeline is arranged between the outlet pipeline and the inlet pipeline, and the connecting point of the bypass pipeline at the inlet pipeline is located between the regulating valve and the heat storage tank; and the system further comprises a controller, wherein the pulsation generating device, the regulating valve and the bypass valve are in data connection with the controller. According to the intelligently-controlled pulsation heat exchange system, the flow of the pulsating flow can be adjusted and whether the pulsation descaling mode is started or not can be determined according to needs, and the intelligence of heat exchange is further improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to an intelligently controlled pulsating tube bundle heat exchange component and a molten salt heat storage tank thereof. Background technique [0002] Shell-and-tube heat exchangers are widely used in energy, power, petrochemical and other industrial fields. The enhanced heat transfer technology of heat exchangers is of great significance to energy saving and consumption reduction. Among them, passive enhanced heat transfer technology is an important research direction at present because it does not require external high-quality energy input to achieve the purpose of enhanced heat transfer. [0003] The use of fluid-induced vibration of heat transfer elements to achieve enhanced heat transfer is a form of passive enhanced heat transfer, which can transform the strict prevention of fluid vibration induction in the heat exchanger into the effective use of vibration, so that t...

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Problems solved by technology

However, this kind of heat storage tank has problems such as large volume, high consumption of molten salt, uneven heating of electric heating or high-temperature fluid, and long heat storage time of molten salt.

Although the surface heat transfer coefficient corresponding to the heat transfer process of liquid molten salt is not much different from the convective heat transfer characteristics of water, in the molten salt tank, the heat storage of molten salt is realized by heat conduction and natural convection, and there must be storage The thermal process takes a long time, and the heat storage speed is slow, etc.

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