A kind of Efficient fin
Technical field
The present invention relates to field of heat exchangers, particularly relate to a kind of Efficient fin.
Background technology
Heat exchanger is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger; Heat exchanger is the common apparatus of chemical industry, oil, power, food and other many industrial department, occupies critical role aborning; Fin, is arranged on the surface needing the heat exchanger carrying out heat trnasfer usually, plays the heat transfer sheet area increasing heat exchanger, improves the effect of heat exchange efficiency.At present, the fin on market is formed by connecting by polylith wing plate, is provided with heat exchanger channels between adjacent wing plate, but, because the wing plate shape on fin is identical, cause the fluid in heat exchanger substantially to belong to laminar flow, fluid comparatively rule can quickly flow therethrough heat exchanger, and thus heat exchanger effectiveness is not very high.
Summary of the invention
The object of the invention is to propose a kind of Efficient fin, can heat exchanger effectiveness be improved.
For reaching this object, the present invention by the following technical solutions:
A kind of Efficient fin, comprise fin body, described fin body comprises the first wing plate, the second wing plate and connecting plate, described first wing plate, the second wing plate are connected with connecting plate respectively, the height of described first wing plate is 0.85-0.95 times of the second wing plate, the top of described first wing plate is provided with at least one semi-cylindrical hill, and the top of described second wing plate is provided with zigzag structure.
Wherein, described arcuated fin piece is arranged on the side of described first wing plate, and one end of described arcuated fin piece is connected with the side of described first wing plate, and the other end of described arcuated fin piece is bending to the direction of the described second wing plate tightly adjacent with described first wing plate.
Wherein, the height of described arcuated fin piece is identical with the height of described first wing plate, and described arcuated fin piece is provided with the guiding gutter consistent with radian direction.
Wherein, the sawtooth of described zigzag structure is triangular sawtooth, trapezoidal sawtooth or rectangular saw-tooth.
Wherein, described first wing plate is provided with the first through hole, described second wing plate is provided with the second through hole, and described first through hole is all identical with the second hole size, shape.
Wherein, described first through hole and described second through hole are crisscross arranged, the center of two kinds of through holes not on same axis, with slowing down fluid flow velocity.
Wherein, the quantity of the first through hole on described each first wing plate is two or more, and described first through hole is evenly distributed on described first wing plate.
Wherein, the quantity of the second through hole on described each second wing plate is two or more, and described second through hole is evenly distributed on described second wing plate.
Wherein, described first wing plate and the second wing plate are provided with reinforcement.
Wherein, described first wing plate, connecting plate, the second wing plate are formed in one structure.
Beneficial effect of the present invention is: a kind of Efficient fin, comprise fin body, described fin body comprises the first wing plate, second wing plate and connecting plate, described first wing plate, second wing plate is connected with connecting plate respectively, the height of described first wing plate is 0.85-0.95 times of the second wing plate, the top of described first wing plate is provided with at least one semi-cylindrical hill, the top of described second wing plate is provided with zigzag structure, described fin body is also provided with arcuated fin piece, the present invention is by changing the height of wing plate, and projection is set on the first wing plate, second wing plate arranges zigzag structure, turbulization when allowing fluid flow fin, and be provided with arcuated fin piece, be convenient to guide fluid to form eddy current, all contribute to reducing rate of flow of fluid, reach the effect improving heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is the Efficient fin structural representation front view that the specific embodiment of the invention provides.
Fig. 2 is the Efficient fin structural representation left view that the specific embodiment of the invention provides.
Fig. 3 is the Efficient fin structural representation top view that the specific embodiment of the invention provides.
Wherein, 1-first wing plate, 2-second wing plate, 3-connecting plate, 4-semi-cylindrical hill, 5-zigzag structure, 6-first through hole, 7-second through hole, 8-arcuated fin piece.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with Fig. 1-3.
Fig. 1 is the Efficient fin structural representation front view that the specific embodiment of the invention provides.
A kind of Efficient fin, comprise fin body, described fin body comprises the first wing plate 1, second wing plate 2 and connecting plate 3, described first wing plate 1, second wing plate 2 is connected with connecting plate 3 respectively, the height of described first wing plate 1 is 0.85-0.95 times of the second wing plate 2, the top of described first wing plate 1 is provided with at least one semi-cylindrical hill 4, and the top of described second wing plate 2 is provided with zigzag structure 5.
The present embodiment by changing the height of wing plate, and arranges projection on the first wing plate 1, the second wing plate 2 arranges zigzag structure 5, produces irregular turbulent flow when allowing fluid flow fin, reduces rate of flow of fluid, reaches the effect improving heat exchange efficiency.
As shown in Figure 3, in the present embodiment, described arcuated fin piece 8 is arranged on the side of described first wing plate 1, one end of described arcuated fin piece 8 is connected with the side of described first wing plate 1, the other end of described arcuated fin piece 8 is bending to the direction of the described second wing plate 2 tightly adjacent with described first wing plate 1, described arcuated fin piece 8 is convenient to guide fluid to form eddy current, contributes to reducing rate of flow of fluid, reaches the effect improving heat exchange efficiency.。
In the present embodiment, the height of described arcuated fin piece 8 is identical with the height of described first wing plate 1, and described arcuated fin piece 8 is provided with the guiding gutter consistent with radian direction, and described guiding gutter contributes to guiding fluid to form eddy current.
Fig. 2 is the Efficient fin structural representation left view that the specific embodiment of the invention provides, and described first wing plate 1, second wing plate 2 is connected with connecting plate 3 respectively.
As another kind of embodiment, between two adjacent the first wing plates 1, two or more second wing plate 2 can be provided with.
Further, two or more first wing plate 1 can be also provided with between two adjacent the second wing plates 2.
As a kind of preferred embodiment, the height of described first wing plate 1 is 0.9 times of the second wing plate 2.
In the present embodiment, the sawtooth of described zigzag structure 5 is triangular sawtooth, as a kind of preferred embodiment, described zigzag structure 5 is irregular zigzag structure 5, sawtooth height is entirely not identical, and width is different, and the present embodiment uses various irregular structure to form turbulent flow to make fluid exactly, to reduce fluid velocity, improve fluid heat transfer efficiency.
In the present embodiment, the height of described triangular sawtooth is different, and with the resistance of alter, the resistance that fluid each several part is subject to is different, forms turbulent flow.
In the present embodiment, the sawtooth of described zigzag structure 5 is trapezoidal sawtooth or rectangular saw-tooth.
In the present embodiment, described first wing plate 1 is provided with the first through hole 6, described second wing plate 2 is provided with the second through hole 7, described first through hole 6 and the second through hole 7 size, shape are all identical.
In the present embodiment, described first through hole 6 and described second through hole 7 are crisscross arranged, the center of two kinds of through holes not on same axis, with slowing down fluid flow velocity.
In FIG, in this view, the second through hole 7 should be can't see, and for the ease of understanding this programme, the second through hole 7 is represented by dotted lines its position.
In the present embodiment, the quantity of the first through hole 6 on described each first wing plate 1 is two or more, and described first through hole 6 is evenly distributed on described first wing plate 1.
In the present embodiment, the quantity of the second through hole 7 on described each second wing plate 2 is two or more, and described second through hole 7 is evenly distributed on described second wing plate 2.
In the present embodiment, described first wing plate 1 and the second wing plate 2 are provided with reinforcement, to make wing plate not flexible.
In the present embodiment, described first wing plate 1, connecting plate 3, second wing plate 2 are formed in one structure.
The foregoing is only the specific embodiment of the present invention, these describe just in order to explain principle of the present invention, and can not with any interpretation of structure for limiting the scope of the invention.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific implementation method of the present invention, and these structures all will fall within protection scope of the present invention.