Honeycomb type heat exchanger adopting multiple times of diffluence and confluence

Abstract

The invention discloses a honeycomb type heat exchanger adopting multiple times of diffluence and confluence. First-time diversion grooves used for performing confluence and diffluence on honeycomb holes in the first-time diversion grooves are alternately arranged on same end surfaces of honeycomb bodies in an upper heat exchange plate and a lower heat exchange plate, and confluence grooves and diffluence grooves in the first-time diversion grooves are arranged alternately; second-time to fourth-time diversion grooves and inter-communicated through holes which are communicated with the first-time diversion grooves are formed in an upper separation-combination device and a lower separation-combination device respectively, and the second-time to fourth-time diversion grooves realize 2 to 4 times of step-by-step diffluence and confluence; an upper connecting plate is arranged at the upper end of the upper separation-combination device, and a lower connecting plate is arranged at the lower end of the lower separation-combination device; a plurality of connecting through holes communicated with 2 to 4 diffluence or confluence grooves are formed in the upper connecting plate and the lower connecting plate; and cold fluid inlet and outlet and hot fluid inlet and outlet are formed at two ends of the upper connecting plate and the lower connecting plate respectively. The honeycomb typeheat exchanger is large in treatment flow capacity, high in heat exchange efficiency, strong in compressive strength, small in volume, light in weight and high in sealability, can treat liquid with high viscosity and suspended particles, can reduce the cost and is convenient to clean and mount, and the flow velocity of the fluid in each honeycomb hole is uniform and no laminar flow and dead corner exists.

Description

technical field [0001] The invention relates to a honeycomb hole heat exchanger, in particular to a honeycomb heat exchanger with multiple flow splitting and multiple confluence. Background technique [0002] Existing partition heat exchangers can be divided into shell-and-tube heat exchangers, plate heat exchangers, casing heat exchangers, etc. according to different heat transfer surfaces; among them, plate heat exchangers have high heat transfer coefficients and good energy-saving effects. But it is not pressure-resistant and easy to block, which greatly limits the application range of plate heat exchangers. Although the shell-and-tube heat exchanger is pressure-resistant, its heat transfer coefficient is low, and it takes up a lot of space, so it is not energy-saving. Chinese patent ZL200920095299.8 discloses a honeycomb ceramic heat exchanger, which consists of one or more main heat exchange basic units and two or twice the number of main heat exchange basic units. Th...

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Problems solved by technology

[0002] Existing partition heat exchangers can be divided into shell-and-tube heat exchangers, plate heat exchangers, casing heat exchangers, etc. according to different heat transfer surfaces; among them, plate heat exchangers have high heat transfer coefficients and good energy-saving effects. But it is not pressure-resistant and easy to block, which greatly limits the application range of plate heat exchangers

Although the shell-and-tube heat exchanger is pressure-resistant, its heat transfer coefficient is low, and it takes up a lot of space and is not energy-saving.

Chinese patent ZL200920095299.8 discloses a honeycomb ceramic heat exchanger, which consists of one or more main heat exchange basic units and two or twice the number of main heat exchange basic units. The heat exchange between the gas and the heated gas, due to the use of ceramic materials with poor thermal conductivity, the volume is large, the heat exchange efficiency is not high, and internal leakage and external leakage are easy to occur

CN101907411A discloses a plate-hole cascaded heat exchange device, which includes an orifice plate heat exchange element formed by stacking several porous plates and sealing heat insulation pads or sealants with the same shape and size. Using metal materials, there are several rows of cold and hot fluid through holes arranged staggeredly on the plate holes. Although the heat exchange rate can be improved, because the heat exchange main body adopts the plate hole superposition method, the plate hole manufacturing cost is high, and the installation is inconvenient. The space is sealed with a heat-insulating pad or sealant, there are many leakage points, the sealing effect is not good, and it is difficult to withstand high pressure

All of the above are heat exchangers with primary diversion or confluence. Since the width of the primary diversion or confluence tank is determined by the diameter of the honeycomb hole, its wall thickness is also subject to corresponding restrictions, and the depth of the primary tank cannot be too deep, which affects the Its pressure height

Make these honeycomb hole heat exchangers unable to handle large flows; there are no honeycomb heat exchangers with multiple diversion and confluence in the prior art

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