Vertical multistage flow solid bulk heat exchanger
A technology of heat exchangers and bulk materials, which is applied in the direction of heat exchanger types, indirect heat exchangers, and moving pipe heat exchangers, etc., which can solve the problems of poor controllability of bulk materials, uneven temperature distribution of bulk materials, and uneven distribution of materials and other problems, to achieve the effect of strong adaptability to bulk material size and shape, reliable bulk material flow control, and uniform material temperature distribution
Active Publication Date: 2019-03-29
XI AN JIAOTONG UNIV
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Problems solved by technology
[0004] Existing tube row heat exchangers and plate heat exchangers are generally used to cool powders. They have a simple structure and flow driven by gravity. The controllability of the flow state of bulk materials in the heat exchanger is poor, and it is difficult to Make timely adjustments to flow changes, prone to uneven fabrics
The heat exchanger is sensitive to the particle size and fluidity of the bulk material, and is prone to blockage, bridging and local overheating
[0005] The existing vertical spiral cooler has strong controllability to the flow of bulk materials, but only the heat exchange device is on the shell side, and the spiral can only control the vertical movement of bulk materials, the mixing degree of materials is poor, and the bulk material channel is close to the rotation center The heat transfer effect of the bulk material is poor, and the temperature distribution of the bulk material is uneven
[0006] Existing chute coolers are generally used for cooling powders. The material moves in a straight line, the mixing degree is poor, the material flow rate is fast, the contact time with the heat exchange surface is short, the heat exchange effect is poor, and the heat exchange tube is severely worn.
[0007] The existing drum cooler is used for online cooling of high-temperature powdery materials, and is not sensitive to the particle size and shape of bulk materials, but has low heat transfer coefficient, large volume, and high energy consumption. Sexual contact, low material filling rate
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[0030] In the following, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.
[0031] It can be seen from Figures 1-4 that the vertical multi-stage flow solid bulk heat exchanger of the present invention is mainly composed of three layers of shells and material flow blenders from the inside out: the inner shell 6 and the middle shell 10 , Outer shell 12, material flow blender 8. The inner space of the inner shell 6 is an internal fluid medium channel 24, and a baffle 25 for enhancing heat exchange or flow guiding i...
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The invention discloses a vertical multistage flow solid bulk heat exchanger. The vertical multistage flow solid bulk heat exchanger comprises three shells and a material flow mixer, wherein an innerfluid medium channel is formed in the inner space of the inner shell, and a fluid medium port and an inner shell fixing device are arranged in the end of the inner fluid medium channel; a bulk flow channel is formed in the space between the inner shell and the middle shell, the material flow mixer is arranged in the bulk flow channel, and the material flow mixer comprises a material flow control stage and a material mixing control stage; an outer fluid medium channel is formed in the space between the middle shell and the outer shell; a bulk feed opening and a power plant of the material flowmixer are arranged on the top of the middle shell; a bulk discharge opening and a shell fixing device are arranged at the bottom of the middle shell; and a heat exchanger fixing device and an outer fluid medium port are arranged on the outer side of the outer shell. The vertical multistage flow solid bulk heat exchanger has the advantages of high adaptability to bulk granularity and shape, bulk flow bridging, low blocking risk and easiness in implementation of safety in production and high efficiency in heat exchange and can be quickly adjusted according to different bulk temperature and flow.
Description
Technical field [0001] The invention relates to a heat exchange device, in particular to a device in which the heat exchange object is a wide particle size bulk material mixed with powder, block or both for heat exchange. It can be used for high temperature solid bulk material waste heat recovery, industrial high temperature bulk material cooling, industrial raw material heating, and other bulk material cooling or heating processes. Background technique [0002] In modern industrial production processes, a large amount of bulk or powdery bulk materials to be cooled or heated are produced. For example, my country's metallurgy, building materials and other industries produce more than 4.5 billion tons of high-temperature bulk materials each year, and the residual heat exceeds 100 million tons of standard coal. At present, CDQ and chain-loop-loop technologies for bulk materials have been mature, and technologies such as multi-stage cyclones, spouted beds, and drum coolers suitable f...
Claims
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IPC IPC(8): F28D11/04F28F5/06
CPCF28D11/04F28F5/06
Inventor杨剑田兴郭志罡谈周妥王秋旺
OwnerXI AN JIAOTONG UNIV