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Combined type spiral baffle plate heat exchanger

A technology of helical baffles and heat exchangers, applied in indirect heat exchangers, heat exchanger types, heat exchanger shells, etc., can solve problems such as low heat exchange efficiency

Inactive Publication Date: 2021-05-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a combined spiral baffle heat exchanger to solve the technical problem of low heat exchange efficiency at the central part of the spiral baffle heat exchanger

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  • Combined type spiral baffle plate heat exchanger

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0026] The center part of the existing spiral baffle heat exchanger has low speed and low heat transfer efficiency, and the continuous swirl baffle has the problem that the central part has high rigidity and difficult stretching during the stretching process, and the stretching quality is not easy to guarantee.

[0027] Such as figure 1 As shown, the present invention provides a combined spi...

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Abstract

The invention belongs to the related technical field of heat exchangers, and discloses a combined type spiral baffle plate heat exchanger. The combined type spiral baffle plate heat exchanger comprises a shell and a central cylinder coaxial with the shell. A spiral baffle plate is arranged between the central cylinder and the shell. Multiple baffle rods are arranged in the central cylinder. The inner area of the heat exchanger is isolated into two parts through the central cylinder, the baffle plate is arranged on the outer portion of the central cylinder to surround the central cylinder, the multiple staggered baffle rods are arranged in the central cylinder, and therefore on one hand, the technical problems of the low flow speed and low heat exchange efficiency of the central area of the spiral baffle plate can be avoided, and on the other hand, due to the fact that the central part of the continuous spiral baffle plate does not need to be processed, the technical problems that in the processing process, the rigidity of the central part is large, stretching is difficult, and stretching quality cannot be guaranteed easily are avoided.

Description

technical field [0001] The invention belongs to the related technical field of heat exchangers, and more specifically relates to a combined spiral baffle heat exchanger. Background technique [0002] Heat exchangers are widely used in petrochemical, energy power, metallurgy, biopharmaceutical and other industrial fields. The shell heat exchanger in the heat exchanger has the largest proportion in the total heat exchange equipment due to its simple structure and low processing difficulty coefficient. It mainly includes two parts: the heat exchange tube bundle and the outer shell. heat exchange on the wall. [0003] The spiral baffle heat exchanger adopts continuous spiral baffles or discontinuous spiral baffles to make the shell side fluid flow forward in a spiral flow. The helical flow enhances the turbulence of the fluid, enhances heat transfer, reduces the back-mixing of the fluid in the heat exchanger, reduces the fluid resistance in the heat exchanger, and reduces the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F9/22F28F13/12
CPCF28D7/1607F28F9/22F28F13/12F28F2009/228
Inventor 鲁录义李建兰
Owner HUAZHONG UNIV OF SCI & TECH
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