Heat exchange equipment applying multi-layer heat exchange tubes

Abstract

The invention discloses heat exchange equipment applying multi-layer heat exchange tubes. The heat exchange equipment at least comprises a tube bundle body, wherein a tube plate is arranged on the tube bundle body, and a plurality of multi-layer heat exchange tubes are penetrated in the tube plate; each multi-layer heat exchange tube at least comprises an outer tube, and the outer tube is internally provided with a medium channel; the medium channel is internally provided with a heat exchange part which divides the heat exchange channel into a direct heat exchange area exchanging heat with the outer tube and an indirect heat exchange area exchanging heat with the heat exchange part; and the heat exchange medium in the indirect heat exchange area exchanges heat energy with the heat exchange medium of the direct heat exchange area through the heat exchange part. In the invention, because the multi-layer heat exchange tubes are adopted, the heat exchange efficiency of the indirect heat exchange is greatly increased. The heat exchange equipment also has the advantages of low cost, convenience for manufacturing, and the like and is suitable for various industries such as petroleum, chemical engineering, chemical fertilizers, boilers, pharmacy, food, power, nuclear energy, environmental protection, heat supply, and the like.

Description

Heat exchange equipment using multilayer heat exchange tubes technical field The invention relates to the technical field of mechanical equipment, in particular to a heat exchange device for heat exchange. Background technique Heat exchange equipment is an important equipment widely used in many industries, and it is also one of the key equipment for energy saving and consumption reduction. As we all know, the core of the efficiency and energy saving of heat exchange equipment lies in the heat exchange tubes. At present, the most used in the world is the seamless tube of various materials, but its effectiveness has been brought into full play, so the emergence of special-shaped tubes for high-efficiency heat exchangers has greatly improved the efficiency of various heat exchange equipment , its main features are as follows: According to the standard of GB / T24590-2009 "Special Type Tubes for High Efficiency Heat Exchangers", my country's current high-efficiency heat exc...

AI Technical Summary

Problems solved by technology

1. Due to the specifications of cold processing equipment, the finished heat exchange tubes are greatly limited in terms of specifications and length;

2. Due to the cold processing steps, the loss of raw materials is relatively large;

3. Due to the complex cold processing process, the processing accuracy of the product is uneven;

4. It is difficult to guarantee the quality of the finished product by the inspection method and inspection method of the cold processing process;

5. Limited by the processing technology, the tube making efficiency is not high;

6. Most of these four types of heat exchange tubes have special shapes, which bring a lot of inconvenience to the production of heat exchanger equipment such as the disposal of bellows and baffles of outer grooved tubes;

7. These four types of heat exchange tubes have been cold-worked, and there are residual stresses on the tube body, which will form turbulent flow when the medium passes through, which strengthens the local corrosion of the heat exchange tubes, so it has a certain impact on the service life of the heat exchanger equipment. negative impact

Due to the above reasons, the heat exchange equipment in the prior art has entered a technical bottleneck, and it is difficult to greatly increase the heat exchange area and heat exchange efficiency, which restricts the development of heat exchange equipment and is difficult to meet the needs of the market

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