Tube plate with equal-thickness surfacing structure, heat exchanger and tube plate manufacturing method
A technology of welding structure and equal thickness, which is applied in the field of tube sheet, heat exchanger and tube sheet manufacturing of thick surfacing structure, which can solve the problems that are not conducive to the sealing of tube sheet and flange, tube sheet and heat exchange tube, and increase the size of the tube The thermal stress level of the plate, increasing the temperature difference between the tube and the plate, etc., achieve the effect of simple structure, uniform thickness and prolonging the service life
Pending Publication Date: 2021-12-10
THE CHALLENGE PETROCHEM MACHINERY CORP
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AI Technical Summary
Problems solved by technology
[0008] Regarding the corrosion and erosion of the structure by the medium, the traditional technology is that the tube sheet is made of precious corrosion-resistant or wear-resistant metal materials, and the cost is relatively high.
On the other hand, the strength performance of these special materials under medium pressure is low, which requires a very thick tube sheet structure, which not only increases the cost, but also increases the temperature difference in the thickness direction of the tube sheet and increases the heat of the tube sheet during operation. Stress level, thermal expansion and deformation are not conducive to the sealing between tube sheet and flange, tube sheet and heat exchange tube
Method used
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Embodiment Construction
[0036] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.
[0037] The heat exchanger of this embodiment is as figure 1 As shown, it includes a shell 3, a tube bundle 1 and a tube box 4. The shell 3 is supported by a saddle 2. The tube bundle 1 includes heat exchange tubes, a tube sheet 5 and a baffle. The tube sheet 5 is fixed on the shell 3 and the tube Between the boxes 4 , the heat exchange tubes are located in the casing 3 , and the ends of the heat exchange tubes pass through the tube sheet 5 to communicate with the tube box 4 , and the baffles stand in the casing 3 to position the baffles. The tube sheet 5 is a flat or curved tube sheet 5, combined with figure 2 As shown, the tube plate 5 includes a plate body 51 and a surfacing layer 52 arranged on the side of the plate body 51. The surfacing layer 52 includes a plurality of surfacing protrusions directly formed by strip surfacing, and each surf...
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The invention relates to the technical field of heat exchangers, in particular to a tube plate with an equal-thickness surfacing structure, a heat exchanger and a tube plate manufacturing method. The heat exchanger comprises a shell, a tube bundle and a tube box, the tube bundle comprises a heat exchange tube, a tube plate and a baffle plate, the tube plate is fixed between the shell and the tube box, the heat exchange tube is located in the shell, the end of the heat exchange tube penetrates through the tube plate to communicate with the tube box, and the baffle plate stands in the shell to be positioned. The tube plate comprises a plate body and a surfacing layer arranged on the side face of the plate body, the surfacing layer comprises a plurality of surfacing protrusions directly formed through strip surfacing, and the thicknesses of the cross sections of all the surfacing protrusions are uniform and equal. The surfacing tube plate can structurally bear high-speed scouring of high-pressure fluid and corrosion of high-temperature and high-pressure resistant media at the same time, can integrally deform in a coordinated mode without cracking along with thermal expansion and cold contraction of a pressure-bearing structure, has the effects of being simple in structure and prolonging the service life of the heat exchanger, and is suitable for the chemical technological processes of high-temperature combustion, reaction, heat exchange and the like.
Description
technical field [0001] The present invention relates to the technical field of various high-temperature and high-pressure heat exchangers used in petroleum refining and chemical industry, coal chemical industry, chemical fertilizer industry, and other various chemical equipment, especially to hydrogenation heat exchangers or desulfurization exchangers that react through catalysts. The technical field of heat exchangers specifically relates to a tube sheet with an equal-thickness surfacing structure, a heat exchanger and a method for manufacturing the tube sheet. Background technique [0002] In the prior art, tube-and-tube heat exchangers are also called shell-and-tube heat exchangers or tube-and-tube condensers, which are suitable for "liquid—— It is the most widely used heat exchanger for convective heat transfer of heat exchange of liquid, steam-steam, and steam-liquid, as well as heat exchange and condensation processes such as steam condensation and liquid evaporation h...
Claims
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IPC IPC(8): F28F9/18F28D7/16B23K31/02B33Y10/00
CPCF28F9/18F28D7/16B23K31/02B33Y10/00
Inventor 陈孙艺
Owner THE CHALLENGE PETROCHEM MACHINERY CORP