Heat exchanger for lattice material

Abstract

A heat exchanger for lattice material belongs to the field of heat exchange equipment, comprises pressing plates (1), an upper guide rod (7), a lower guide rod (6) and a connection pipe (4), and is characterized in that a plurality of lattice material interlayer plates (2) are arranged between the two pressing plates (1), are overlapped, are pressed and fixed by the upper guide rod (7), the lower guide rod (6) and pressing double-screw bolts (5), and are sealed by adhering sealing pads. The heat exchanger has the advantages that the bearing capacity is strong, the sealing performance is good, the pressure drop is small, the heat transfer effect is good, and the like, thereby enhancing the heat exchange efficiency and the sealing strength remarkably.

Description

technical field [0001] A lattice material heat exchanger belongs to the field of heat exchange equipment, and in particular relates to a heat exchange equipment made of lattice materials. Background technique [0002] Due to its compact structure, high heat transfer coefficient, convenient cleaning or maintenance, and investment saving, plate heat exchangers have been widely used in industrial production fields, but several defects have been found in practical applications: on the one hand, their exchange The thermal plate is made of stacked metal sheets with a certain corrugated shape, and the rigidity is low; on the other hand, the sealing periphery of the gasket is longer, which greatly limits the working pressure of the plate heat exchanger, resulting in pressure The medium on the higher side is in series with the medium on the lower pressure side, forming a phenomenon of "liquid flow", and there will be abnormal pressure and temperature in the system. If the medium is c...

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Problems solved by technology

[0002] Due to its compact structure, high heat transfer coefficient, convenient cleaning or maintenance, and investment saving, plate heat exchangers have been widely used in industrial production fields, but several defects have been found in practical applications: on the one hand, their exchange The thermal plate is made of stacked metal sheets with a certain corrugated shape, and the rigidity is low; on the other hand, the sealing periphery of the gasket is longer, which greatly limits the working pressure of the plate heat exchanger, resulting in pressure The medium on the higher side is in series with the medium on the lower pressure side, forming a phenomenon of "liquid flow", and there will be abnormal pressure and temperature in the system. If the medium is corrosive, it may also cause corrosion of other equipment in the pipeline. , liquid crossover usually occurs in the diversion area or the secondary sealing area, which affects the use range of the plate heat exchanger; moreover, the pressure drop is large, and the pressure drop between the inlet and outlet of the medium exceeds the design requirements, or even exceeds the design value Many times, it seriously affects the system's requirements for flow and temperature. In the heating system, if the pressure drop on the hot side is too large, the flow on the primary side will be seriously insufficient, that is, the heat source is not enough, resulting in the temperature of the secondary side can not meet the requirements; the sealing effect Not good, mainly manifested as leakage (small amount, discontinuous water droplets) and leakage (large amount, continuous water droplets), etc. The main parts of external leakage are the seal between the plates, the plate Secondary seal leakage groove part and end plate and inner side of compression plate

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