Method for producing artificial graphite heat exchange element
A technology of heat exchange element and production method, which is applied in the field of artificial graphite heat exchange element production, can solve the problems of graphite block bursting, poor thermal shock resistance, and graphite tube fracture, so as to improve thermal shock resistance, reduce expansion coefficient, The effect of using the occasion to improve
Inactive Publication Date: 2013-06-19
NANTONG BRANCH OF SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE +1
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Problems solved by technology
[0003] The thermal brittleness of conventionally manufactured artificial graphite materials is relatively large, and the thermal shock resistance is poor. Because part of the resin has not been completely cured during the process, the organizational structure is not stable enough, and it is not resistant to wear, because the linear expansion coefficient of the resin is greater than that of graphite materials. , when the ambient temperature changes frequently and the thermal shock is large, it will cause the graphite block to burst and the graphite tube to break
Therefore, its use is greatly restricted, for example, it is not suitable for the manufacture of heat exchange elements in boiler waste heat recovery devices
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[0017] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the above-mentioned and other purposes, features and advantages of the present invention will be clearer. Like reference numerals designate like parts throughout the drawings. The drawings have not been drawn to scale, emphasis instead being placed upon illustrating the gist of the invention.
[0018] figure 1 It is the flowchart of the production method of the artificial graphite heat exchange element of the specific embodiment of the present invention, combined below figure 1 The production method of the artificial graphite heat exchange element of the present invention is described in detail.
[0019] The production method of the artificial graphite heat exchange element according to the speci...
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The invention provides a method for producing an artificial graphite heat exchange element. The method comprises the steps of sequentially carrying out graphite dipping treatment, solidification treatment and thermal treatment. The graphite dipping treatment and the solidification treatment are repeatedly carried out on graphite assemblies for three times; secondly, the graphite assemblies are orderly arranged in a thermal treatment box to be subjected to the thermal treatment; and after the temperature of the interior of the thermal treatment box is naturally reduced to environment temperature, a box door is opened and the graphite assemblies are taken out. The method for producing the artificial graphite heat exchange element, disclosed by the invention, can improve the temperature and corrosion resistance of a graphite element and prolongs the service life of the graphite element.
Description
technical field [0001] The invention relates to the technical field of heat exchange element manufacturing, in particular to a production method of an artificial graphite heat exchange element. Background technique [0002] At present, due to a large amount of gas overflowing during the manufacturing process of artificial graphite, the graphite body will have many pores. When used in graphite heat exchange elements, it needs to be blocked to make it impermeable. The plugging process generally adopts Dipping and curing process. [0003] The thermal brittleness of conventionally manufactured artificial graphite materials is relatively large, and the thermal shock resistance is poor. Because part of the resin has not been completely cured during the process, the organizational structure is not stable enough, and it is not resistant to wear, because the linear expansion coefficient of the resin is greater than that of graphite materials. , when the ambient temperature changes f...
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IPC IPC(8): B23P15/26C01B31/04C01B32/21
Inventor 徐慎忠王发贤顾健刘文卜陈汉明陈汉军
Owner NANTONG BRANCH OF SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE