CN201672840U

CN201672840U - Cooling plate with ragged structure and arc bulge layer on bottom plate

Info

Publication number: CN201672840U
Application number: CN2010201993856U
Authority: CN
Inventors: 姚建峰; 林建忠
Original assignee: ZHANGJIAGANG HENGQIANG COOLING EQUIPMENT CO Ltd
Current assignee: ZHANGJIAGANG HENGQIANG COOLING EQUIPMENT CO Ltd
Priority date: 2010-05-19
Filing date: 2010-05-19
Publication date: 2010-12-15
Anticipated expiration: 2020-05-19

Abstract

The utility model discloses a cooling plate with a ragged structure and an arc bulge layer on a bottom plate, which comprises the bottom plate. A plurality of heat exchange tube holes are arranged on the bottom plate; the ragged structure is arranged on the edge of the bottom plate close to the air inlet side and the air outlet side of a fin-and-tube heat exchanger; and a circle of the arc bulge layer is arranged on the peripheries of the heat exchange tube holes. The cooling plate is applicable to fin-and-tube heat exchangers.

Description

The fin that laciniation and arc convex layer are arranged on the base plate

Technical field

The utility model belongs to the technical field of heat exchanger, relates in particular to a kind of fin of nest plate type heat exchanger.

Background technology

The core of nest plate type heat exchanger comprises the heat exchanger tube that is positioned at the center, and the two ends of heat exchanger tube are fixed with tube sheet, is densely covered with fin between two tube sheets, and described fin is sleeved on the heat exchanger tube.Fin is one of main thermal component in the nest plate type heat exchanger.Fin in the nest plate type heat exchanger of present domestic most of manufacturer production, comprise base plate, base plate is provided with several heat exchange pores, and described base plate is a plane base plate, air is the advection state when flowing through this kind fin, cause radiating effect undesirable; And fin and the heat exchanger tube applying rate after dilating is generally lower, can only reach between 75%～85%, and heat exchange effect is relatively poor.

The utility model content

Technical problem to be solved in the utility model is: the fin that laciniation and arc convex layer are arranged on a kind of better base plate of radiating effect that can make the nest plate type heat exchanger will be provided.

For addressing the above problem, the technical solution adopted in the utility model is: the fin that laciniation and arc convex layer are arranged on the base plate, comprise base plate, base plate is provided with several heat exchange pores, near the air intake of nest plate type heat exchanger and the bottom edge of air side is laciniation, and the outer periphery of described heat exchange pore is equipped with a circle arc convex layer.

Described arc convex layer is the convexity layer of half cycle sine wave shape.

The beneficial effects of the utility model are: through actual test and use, there is the fin of laciniation and arc convex layer to compare on the utility model base plate with the fin of plane structure, surface heat transfer is led coefficient and is improved 32%～35%, and the heat exchange effect has improved 20%～30%; Have the applying rate after the fin of laciniation and arc convex layer and heat exchanger tube dilate to reach between 90%～94.8% on the utility model base plate, heat exchange effect is significantly increased.

Description of drawings

Fig. 1 is the main TV structure schematic diagram that the fin of laciniation and arc convex layer is arranged on the utility model base plate;

Fig. 2 is the enlarged diagram of B part among Fig. 1;

Fig. 3 is the sectional structure schematic diagram of A-A direction among Fig. 2;

Fig. 4 is the enlarged diagram of C part among Fig. 1;

Fig. 5 be among Fig. 4 D to structural representation;

Among the figure: 1, base plate, 2, the heat exchange pore, 3, the arc convex layer.

The specific embodiment

Below in conjunction with accompanying drawing, the structure of fin that laciniation and arc convex layer are arranged on the utility model base plate is described in further detail.

As Fig. 1, Fig. 2, shown in Figure 3, the fin that laciniation and arc convex layer are arranged on the base plate, comprise base plate 1, evenly be provided with several heat exchange pores 2 on the base plate 1, as Fig. 4, shown in Figure 5, near the air intake of nest plate type heat exchanger and base plate 1 edge of air side---be that upper and lower both sides are laciniation among Fig. 1, the outer periphery of described heat exchange pore 2 is equipped with the arc convex layer 3 that a circle is the half cycle sine wave shape.

The beneficial effects of the utility model are: the laciniation that is horizontally placed on the fin both sides in the air flow passage, when the Air Flow air intake, Air Flow is disturbed, so that the air air intake flows at the uniform velocity, effectively disturbed " boundary-layer " effect of fin surface, so that the thermal resistance of " boundary-layer " is littler, thermograde is littler, more be conducive to heat exchange, also increased in addition the rigidity at fin edge, improved the shock resistance of fin, outward appearance is neat appearance more; Arc protruded layers 3 not only can effectively be controlled the spacing of arranging between the adjacent fin, and can make that to have fin and being connected of heat exchanger tube preferably an expanded joint flexible, that make both tightr evenly; Through actual test and use, there is the fin of laciniation and arc protruded layers to compare with the fin of plane structure on the utility model base plate, surface heat transfer is led coefficient and is improved 32%～35%, and heat transfer effect has improved 20%～30%; Have the applying rate after the fin of laciniation and arc protruded layers and heat exchanger tube dilate to reach between 90%～94.8% on the utility model base plate, heat exchange effect is significantly increased.

Claims

1. the fin that laciniation and arc convex layer are arranged on the base plate, comprise base plate, base plate is provided with several heat exchange pores, it is characterized in that: near the air intake of nest plate type heat exchanger and the bottom edge of air side is laciniation, and the outer periphery of described heat exchange pore is equipped with a circle arc convex layer.

2. the fin of laciniation and arc convex layer is arranged on the base plate according to claim 1, it is characterized in that: described arc convex layer is the convexity layer of half cycle sine wave shape.