Multilayer acute angle membrane type wall vibration folding high-efficiency particle heat exchanging device

Abstract

The invention discloses a multilayer acute angle membrane type wall vibration folding high-efficiency particle heat exchanging device. The multilayer acute angle membrane type wall vibration folding high-efficiency particle heat exchanging device comprises a base, a boiler body located above the base and a plurality of acute angle membrane type wall structures. A plurality of vibrating springs arefixedly arranged between the boiler body and the base, and the base is provided with a vibration motor. A feeding port is formed in the boiler body. A feeding hopper communicates with the feeding port. The feeding port is provided with a feeding valve. A discharge port is formed in the lower end of the boiler body and provided with a discharging valve and a discharging hopper. The multilayer acute angle membrane type wall vibration folding high-efficiency particle heat exchanging device is relatively wide in material shape application range and particle size range and also adapts to non-circular particle particles. The materials flow from top to bottom, a working medium in a water pipe flows from bottom to top, good countercurrent is formed between the materials and the working medium, and gradient utilization of waste heat is advantageously achieved. The materials roll down, the gravity of the materials provide part of falling power, and the power consumption is relatively small. Themass transfer in the materials is powerful, and the heat exchanging coefficient of the materials and the inner walls of the boiler body is high.

Description

technical field [0001] The invention belongs to the technical field of high-temperature waste heat utilization of granular materials, and specifically relates to a multi-layer acute-cornea type wall vibration reentry high-efficiency particle heat exchange device. Background technique [0002] The existing direct heat exchange device between powder and solid wall mostly adopts the form of multi-layer water jacket, the inside of the water jacket is filled with cooling water, the water jacket is placed vertically, and the powder is lifted between adjacent water jackets by its own weight. For the downward flow, the water jacket is formed by spot welding of two layers of plates, which is called a water jacketed plate heat exchanger in the industry. The water jacketed plate heat exchanger has the following technical defects: [0003] 1) The cooling water is completely penetrated in the water jacket, which cannot form a counterflow with the material, and cannot realize the cascade...

AI Technical Summary

Problems solved by technology

[0003] 1) The cooling water is completely penetrated in the water jacket, which cannot form a countercurrent flow with the material, and cannot realize the cascade extraction of waste heat, which seriously restricts the utilization efficiency of waste heat

[0004] 2) The water jacket is spot-welded with two layers of plates. The resistance of the material circulation channel between the two layers of water jacket is too small, the material is close to free fall, the flow rate is too fast, the heat transfer efficiency of the material per unit length of the process is too low, and the metal waste is serious

[0005] 3) The material is close to free fall, the flow rate is too fast, the wear of the particles on the solid surface is serious, and the life of the heat exchanger is short

[0008] 1) The heating surface of this type of heat exchanger is spread horizontally and occupies a large area;

[0009] 2) This type of heat exchanger cannot use the falling trend of material gravity to move the material forward. The power of material movement comes entirely from vibration inertial force, and the power consumption is relatively large.

[0011] 4) When the working medium in the water pipe is a mixture of steam and water, the air bubbles in the water are not easy to float up and tend to the center, but the upper half of the pipe is in the gas phase, and the lower half is in the liquid phase, and the upper half is prone to heat transfer deterioration, causing the pipe to burst

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