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Circular pipe and flat pipe combined combustion waste heat utilization heat exchange device

A technology of heat exchange devices and flat tubes, which is applied to fixed tubular conduit components, heat exchanger shells, indirect heat exchangers, etc., can solve problems such as poor high temperature resistance, low heat exchange efficiency, and large occupied volume, and achieve Reduce volume and weight, improve heat exchange efficiency, and occupy less space

Inactive Publication Date: 2017-09-22
CHINA NORTH VEHICLE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of low heat exchange efficiency, large weight, large occupied volume, and poor high temperature resistance of existing waste heat utilization heat exchange devices, and propose a compact structure, high temperature resistance, high power density, and high heat exchange efficiency. heat exchange device

Method used

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  • Circular pipe and flat pipe combined combustion waste heat utilization heat exchange device
  • Circular pipe and flat pipe combined combustion waste heat utilization heat exchange device
  • Circular pipe and flat pipe combined combustion waste heat utilization heat exchange device

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Embodiment Construction

[0049] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0051] Such as Figure 1-6 The shown exhaust gas waste heat utilization heat exchange device includes a heat exchange core 1, a front support 2 of the heat exchange core, and a rear support 3 of the heat exchange core. The heat exchange core 1, the front support 2 and the The rear support body 3 is arranged in the exhaust gas flue 12. The heat exchange core 1 includes an upper cover plate 36, a lower cover plate 40 and a plurality of heat exchange tubes, and the heat exchange tubes are connected through the upper cover plate 36 and the lower cover plate 40. , the front support body 2 and the rear support body 3 are respectively located at both ends of the heat exchange core body 1, and together ...

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Abstract

The invention provides a combustion waste heat utilization heat exchange device. The combustion waste heat utilization heat exchange device comprises a heat exchange core arranged in a waste gas flue. The heat exchange core comprises circular pipes and flat pipes. The flowing direction of liquid in the circular pipes and the flat pipes is perpendicular to the flowing direction of waste gas. The circular pipes and the flat pipes are sequentially distributed in the waste gas flowing direction. The heat exchange core of the heat exchange device is of a circular pipe and flat pipe combined heat exchange structure. A thin-wall circular-pipe-shaped heat exchange structure is adopted at the front end of the heat exchange core, and a multi-row thin-wall flat pipe type heat exchange structure is adopted at the rear end of the heat exchange core. Different heat exchange structures are adopted at different positions according to different heat absorbing amounts, the phenomenon of film boiling on the water side is effectively reduced, the heat load of the heat exchange core is reduced, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention belongs to the field of heat exchange, and in particular relates to a shell-and-tube heat exchange device for waste heat utilization. Background technique [0002] In the past ten years, due to the shortage of energy sources, with the further development of energy conservation work. A variety of new, energy-saving and advanced furnace types are becoming more and more perfect, and the use of high-quality insulation materials such as new refractory fibers has significantly reduced the heat dissipation loss of the furnace. The advanced combustion device is used to strengthen the combustion, reduce the amount of incomplete combustion, and the air-fuel ratio tends to be reasonable. However, the technology of reducing the heat loss of flue gas and recovering the waste heat of flue gas is still not progressing fast. In order to further improve the thermal efficiency of the kiln and achieve the purpose of saving energy and reducing consumption,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F1/02
CPCF23J15/06F28D7/00F28F1/40F28F9/007F28F9/24Y02E20/30
Inventor 吕志鸿王东杰刘海涛胡煦东靳雁松贾川贾大鹏李源浩
Owner CHINA NORTH VEHICLE RES INST
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