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heat exchanger

A technology of heat exchangers and heat exchange tubes, applied in heat exchange equipment, heat exchanger types, heat exchanger shells, etc., can solve the problems of difficulty in ensuring product accuracy, difficulty in installing spiral baffles, and high processing costs, and achieve The effect of prolonging the process

Active Publication Date: 2016-11-23
ZJMECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the flow form of the shell-side fluid is more reasonable, the effective flow area is increased, and the flow resistance is reduced, but compared with the bow-shaped baffle, the spiral baffle is difficult to install, the processing cost is high, and the product accuracy is difficult to guarantee, which is not conducive to industrial standardization.

Method used

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Embodiment Construction

[0024] Such as figure 1 and figure 2 As shown, the heat exchanger is mainly composed of a shell 1, tube boxes 2 located on both sides of the shell 1, tube sheets 3 between the tube box and the shell, and heat exchange tubes 4 arranged in the shell. A saddle is provided under the casing for fixing the heat exchanger on the ground or other equipment. The housing is generally cylindrical.

[0025] The pipe box 2 on one side of the housing is provided with a coolant inlet pipe 21 penetrating through the pipe box, and the pipe box on the other side of the housing is provided with a coolant outlet pipe 22 penetrating through the pipe box 2. It flows directly into the shell 1, flows through the gap between the heat exchange tubes to help the heat exchange tubes cool down, and finally flows out from the shell into the coolant outlet pipe; there is also a heat flow connected to the tube box on the wall of the tube box where the coolant inlet tube is located. The inlet 23 is provide...

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Abstract

The invention relates to a heat exchanger. The heat exchanger is mainly composed of a shell, pipe boxes located at the two sides of the shell, pipe plates located between the pipe boxes and the shell and heat exchanging pipes arranged in the shell. A saddle is arranged under the shell and is used for fixing the heat exchanger to the ground or other equipment. The shell is usually in a cylindrical shape. Cooling liquid is forced to be redirected to flow through central holes of arch-shaped plates after flowing through venting holes at the peripheries of the circular plates through spaced-arranged circular plates and arch-shaped plates, the flow range of the cooling liquid is prolonged, therefore the heat exchanging pipe is cooled fully, the cooling liquid is prevented from flowing from one end of the shell to the other end of the shell in a straight-line mode, and the phenomenon of inadequate cooling of the central position of the heat exchanging pipe is avoided.

Description

technical field [0001] The invention relates to a heat exchanger, which belongs to the optimization technology of the heat exchanger. Background technique [0002] Heat exchangers are widely used in petrochemical, electric power, environmental protection and other industrial fields. A heat exchanger generally includes a tube box, a tube sheet, a shell, a plurality of baffles, a plurality of heat exchange tubes, and the like. Among them, in addition to supporting the heat exchange tubes in the shell of the heat exchanger, the baffle mainly plays the role of making the fluid flow according to a specific path, increasing the flow velocity of the shell side fluid, increasing the degree of turbulence, and improving the heat transfer characteristics. [0003] The existing baffles of heat exchangers include arcuate baffles and spiral baffles. [0004] Ordinary arcuate baffles are flat plate, that is, the generally circular plate is cut into a notched arc, and are arranged at inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F9/24
CPCF28D7/16F28D7/1607F28F1/12F28F9/24
Inventor 肖晟
Owner ZJMECH TECH
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