Photothermal heat exchanger tube bundle supporting structure combined by baffle plates and longitudinal flow grid frames
A support structure and baffle technology, applied to solar collectors, heat exchanger shells, heat exchange equipment, etc. that use working fluids, can solve problems such as the inability to meet the maximum flow resistance of heat exchange tube bundles at the same time, and achieve heat exchange The effect of increasing the coefficient, reducing the flow resistance, and reducing the flow resistance on the shell side
Inactive Publication Date: 2020-03-27
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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- Abstract
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: the existing heat exchanger tube bundle support structure cannot meet the technical problem of the maximum unsupported spacing of the heat exchange tube bundle and the maximum flow resistance allowed by the shell side at the same time
Method used
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[0020] Such as image 3 As shown, the present invention provides a light-to-heat heat exchanger tube bundle support structure combined with baffles and vertical flow grids, which is characterized in that the tube bundle 1 is inserted into the regularly arranged baffles 2 and grids In the frame 3, two adjacent baffles 2 have a symmetrical structure, and a grid frame 3 is arranged between them.
[0021] The above structure is applied to the preheater in the photothermal steam generation system, the shell side medium is molten salt, and the tube side medium is feed water. The distance between the baffle plate 2 and the grid frame 3 is 500 mm, and the calculated flow resistance on the shell side is about 40 kPa.
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The invention discloses a photothermal heat exchanger tube bundle supporting structure combined by baffle plates and longitudinal flow grid frames. The photothermal heat exchanger tube bundle supporting structure is characterized in that a tube bundle is inserted into the baffle plates and the grid frames which are regularly arranged, every two adjacent baffle plates are of a symmetrical structure, and one or two grid frames are arranged between the two baffle plates. The structure enables longitudinal flow and transverse flow to be alternately arranged in the heat exchanger. The baffle platesand the longitudinal flow grid frames are combined to meet the maximum unsupported space requirement of the heat exchange tube bundle, the requirement of reducing shell-side flow resistance can be met, the structure is applied to the field of heat exchangers of tower-type or groove-type photothermal steam generation systems, and the shell-side flow resistance can be reduced on the premise of meeting the vibration requirement of the heat exchange tube bundle.
Description
technical field [0001] The invention relates to a photothermal heat exchanger tube bundle support structure combined with a baffle plate and a longitudinal flow grid, in particular to a photothermal heat exchanger device with high flow resistance and guaranteed vibration requirements of the heat exchange tube bundle, belonging to photothermal Heat exchanger technology field. Background technique [0002] There are currently two types of support for heat exchangers: baffle type and longitudinal flow type. For the baffle type heat exchanger, in order to meet the maximum unsupported spacing requirement of the heat exchange tube bundle, the spacing between the baffles needs to be reduced. But when the baffle spacing is too small, the resistance on the shell side will exceed the maximum resistance allowed by the design. Another type of heat exchanger is the longitudinal flow heat exchanger, which is supported by a grid. The grid does not have the effect of baffle. The fluid dir...
Claims
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IPC IPC(8): F28F9/24F28F9/013F24S10/30
CPCF24S10/30F28F9/013F28F9/24Y02E10/44
Inventor 杨志刚牛忠华张磊磊杨洁王俊蔡尚宁谢辛沙永涛
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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