Baffle high-efficient heat exchanger

Abstract

The invention discloses a baffle high-efficient heat exchanger which comprises a corrugation baffle high-efficient heat exchanger shell and an ultrasound device, and preferably comprises a heat-exchanging efficiency real-time monitoring and controlling system. Heat exchanging media flow in the corrugation baffle high-efficient heat exchanger in a baffle mode; the ultrasound device comprises an ultrasound generation mechanism and an ultrasound wave transmission and vibration mechanism, wherein the ultrasound wave transmission and vibration mechanism is arranged inside the corrugation baffle high-efficient heat exchanger shell; and the heat-exchanging efficiency real-time monitoring and controlling system is used for monitoring the temperature and the pressure of the outlet or the inlet of the heat exchanger to obtain heat-exchanging efficiency through calculation, adjusting flow of the heat exchanger according to the heat-exchanging efficiency and ensuring that the heat exchanger is kept in the best heat-exchanging state. Because the baffle heat exchanger is combined with ultrasound wave technologies in the baffle high-efficient heat exchanger, the purposes of preventing and eliminating contamination, preventing a metal shell body from being corroded and improving heat-exchanging efficiency are achieved; the heat-exchanging efficiency real-time monitoring and controlling system can timely record and display to provide reliable data for production operation; and heat-exchanging efficiency is improved, energy consumption is reduced, and environment is further protected.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a baffled high-efficiency heat exchanger combined with ultrasonic technology. Background technique [0002] As the basic equipment for heat conduction and exchange, heat exchangers have been widely used in modern industry and mechanical equipment. Due to water quality, use environment and other reasons, most heat exchangers currently have fouling problems. The fouling process means that fouling deposits are transferring heat The process of formation on the surface, for direct contact heat exchangers, is the process of accumulation of deposits at the phase interface. Usually scaling is divided into 6 types: (1) Precipitation scaling: CaCO 3 , CaSO 4 and MgSiO 3 The negatively soluble salt solution precipitates and deposits with the salt due to the decrease in the solubility of the hot surface; (2) particle scaling: solid particles suspended in the liquid are deposited d...

AI Technical Summary

Problems solved by technology

Due to the high thermal resistance of dirt, the total heat transfer efficiency is reduced, and the pump power is increased because of the reduced flow cross section. For the occasion of enhanced heat transfer, if the formation cannot be effectively controlled, many heat transfer enhancement measures will become meaningless

[0003] The energy waste and economic loss caused by fouling are quite serious

Fouling gradually deposits over time, which will cause consumption as follows: (1) The heat transfer rate is reduced due to fouling. If the solution is to increase the heat transfer area, the size of the equipment will undoubtedly be increased; in addition, for a certain In some occasions that require continuous production, it is necessary to equip the same type of heat exchanger for backup; (2) For corrosive media, titanium, stainless steel and other precious materials are required; (3) The shutdown due to serious fouling may affect product quality Production loss during decline or outage; (4) Scaling cleaning requires various cleaning equipment, as well as the consumption of chemicals; (5) Heat transfer resistance is increased after scaling. The power will inevitably increase the capacity consumption. In addition, the flow cross-sectional area will be reduced, the pressure drop will increase, and the pump power will increase; (6) Regular maintenance brings equipment and labor costs.

In short, heat exchanger fouling is a very complicated problem, and its mechanism involves many disciplines, so far it is still a problem that has not been completely solved.

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