Non-welded type pure countercurrent plate heat exchanger
A plate heat exchanger, non-welding technology, applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problems of poor heat transfer efficiency of heat transfer equipment, complex manufacturing process, complex structure, etc. High assembly efficiency, convenient piping arrangement, and small welding workload
Inactive Publication Date: 2017-02-15
LUOYANG RUICHANG PETROCHEM EQUIP
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Problems solved by technology
[0004] The purpose of the present invention is to solve the deficiencies of the above technical problems and provide a non-welded pure counterflow plate heat exchanger, which has the advantages of high heat transfer efficiency, wide application range, simple and compact structure, easy processing and manufacturing, and low cost. Low cost, easy to achieve mass production, tight sealing, small pressure drop, etc., can effectively solve technical problems such as poor heat transfer efficiency, complex manufacturing process, complex structure, high price, and large pressure drop in existing heat transfer equipment
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[0021] The present invention will be further described below in conjunction with accompanying drawing and embodiment:
[0022] Such as Figure 1-3 Shown: a non-welded pure counter-flow plate heat exchanger, the heat exchange inner core of the plate heat exchanger includes multi-layer heat exchange plates 1 arranged in a staggered manner, two of the opposite sides of the heat exchange plates 1 edge set with a downward " " shaped hem, the other two opposite sides are provided with upward " ”-shaped folds, the folds of two adjacent heat exchange plates 1 are arranged alternately. When assembling the heat exchange inner core, the upper and lower adjacent heat exchange plates are placed in sequence, that is, the upper heat exchange plate 1 " The "shaped fold corresponds to the "" placed on the lower heat exchange plate 1 On the "shaped flange, a sealing gasket 2 is placed between the lower heat exchange plate 1 and the upper heat exchange plate 1, that is, the " "shaped f...
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The invention relates to a non-welded type pure countercurrent plate heat exchanger. A heat exchanging inner core of the plate heat exchanger comprises a plurality of layers of heat exchanging plates which are arranged in a staggered and overlapped manner. Two opposite sides of each heat exchanging plate are provided with downward right-angled Z-shaped edgefolds, and the other two opposite sides of each heat exchanging plate are provided with upward L-shaped edgefolds. The edgefolds of every two adjacent heat exchanging plates are arranged in a staggered manner. The part between contact surfaces of each right-angled Z-shaped edgefold and the corresponding L-shaped edgefold of the heat exchanging plates is provided with a sealing gasket. Each right-angled Z-shaped edgefold of the heat exchanging plates is provided with a U-shaped groove in the length direction of the corresponding heat exchanging plate, and each U-shaped groove is internally provided a wavy elastic depression bar. Corner sealing blocks are arranged at corners of the right-angled Z-shaped edgefolds of the heat exchanging plates. Medium runners between every two adjacent heat exchanging plates are internally provided with supporting bars playing a role in guiding and supporting. The plate heat exchanger has the beneficial effects of being high in heat transmission efficiency, wide in application range, simple and compact in structure, easy and convenient to machine and manufacture, low in manufacturing cost, capable of achieving volume production easily, airtight in sealing, small in pressure drop and the like.
Description
technical field [0001] The invention relates to the technical field of petrochemical equipment, in particular to a non-welded pure countercurrent plate heat exchanger. Background technique [0002] At present, air preheaters are widely used in industrial applications to recover the waste heat in the flue gas, which has achieved the purpose of improving the thermal efficiency of the heating furnace and saving fuel. Air preheaters are mostly cross-flow heat exchange at present. [0003] Plate heat exchanger is an efficient and compact heat exchange equipment, which has many advantages such as high heat transfer coefficient, small pressure loss, compact structure, convenient maintenance, etc., and with the improvement of structure and the improvement of large-scale manufacturing technology, plate heat exchanger The application of the heater is paid more and more attention by people. A variety of welded plate heat exchangers have been developed, manufactured and used at home a...
Claims
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Login to View More IPC IPC(8): F28D9/04F28F3/10
CPCF28D9/04F28F3/10
Inventor 唐聚园邵松吕凤邵国辉王弯弯
Owner LUOYANG RUICHANG PETROCHEM EQUIP