Condensation type heat exchange plate and condensation type heat exchanger with same

Abstract

The invention discloses a condensation type heat exchange plate and a condensation type heat exchanger with the condensation type heat exchange plate. The interior of the heat exchange plate is divided into a plurality of arc-shaped water flowing channels which are parallel to one another, pipe connecting ports which are connected with a water inlet pipe and a water outlet pipe respectively are formed in the upper end and the lower end of the interior of the heat exchange plate respectively, water holes are formed in the positions of the pipe connecting ports, the two ends, communicated with the water holes, of an inner cavity of the heat exchange plate are provided with water collecting spaces respectively, the water collecting spaces are communicated with all the water flowing channels, and fins are arranged on the two outer sides of the heat exchange plate respectively. The condensation type heat exchanger is formed by combining a plurality of heat exchange plates in parallel, a smoke pipeline of the condensation type heat exchanger is an inter-plate gap defined by the ribs outside every two adjacent heat exchange plates, the water flowing channels inside the heat exchange plates serve as water flowing pipelines of the condensation type heat exchanger, and the space defined by down pipes on the bottoms of the heat exchange plates serves as a combustion chamber. The condensation type heat exchange plate is made of cast aluminum alloy through die casting and has the advantages that the heat resistance is high, the sealing performance is high, and the balance among the corrosion resistance, the good head conductivity and the manufacturing technology is well considered, heat loss is effectively reduced, and heat exchange efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of condensation heat exchange, and in particular relates to a condensation heat exchange plate and a condensation heat exchanger applied thereto. Background technique [0002] The exhaust gas temperature of a traditional wall-hung boiler is generally around 180°C, which contains a large amount of water vapor. If the exhaust gas temperature is further reduced and the condensation heat of water vapor is recycled, the thermal efficiency of the wall-hung boiler will be significantly improved. Theory proves that its thermal efficiency can be as high as 111 % (Based on low calorific value). Therefore, the application of condensation technology was born. At the same time, the study found that when the flue gas is condensed, SOx and NOx in the flue gas can be almost completely dissolved in the condensed water, so that the harmful substances discharged into the atmosphere are greatly reduced. It can be seen that bo...

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Problems solved by technology

[0004] The technical problem solved by the present invention is to propose a new type of condensing heat exchange plate and its applied condensing heat exchanger, so as to solve the problems of low condensation rate and corrosion resistance of the main heat exchanger and condensing heat exchanger in wall-hung boilers. Poor capability, poor stability, high cost, etc.

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