Heat exchange plate and pore plate type heat exchanger

Abstract

The utility model discloses a heat exchange plate and a pore plate type heat exchanger, which comprise a plate body, a through hole is arranged on the plate body, a folded part connected at the through hole is used as a heat exchange fin, and the heat exchange fin is connected at the edge of the through hole. Compared with a traditional plate heat exchanger, the heat exchange plate and the pore plate heat exchanger have the advantages of being low in machining cost, small in machining difficulty, good in stability, high in heat exchange efficiency, good in turbulent flow performance and the like, and the heat exchange plate can be further thinned.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plate heat exchanger technical field, concretely relates to a heat exchange plate and orifice plate heat exchanger. BACKGROUND

[0002] The conventional plate heat exchanger is stacked by a series of metal sheets, thin rectangular channels are formed between the sheets, heat exchange is carried out through the sheets, and the plate heat exchanger has the characteristics of compact structure, light weight, small floor area, convenient installation and cleaning, wide application, etc.

[0003] In order to improve the heat exchange efficiency of the plate heat exchanger, the ribs can be machined on the heat exchange plate of the plate heat exchanger. For example, the document CN2884067Y discloses a ribbed plate heat exchanger, which comprises heat exchange plates, has sealing inclined surfaces around the heat exchange plates, and has angle holes at both ends of the heat exchange plates. The heat exchange core is formed by sealing a plurality of heat exchange plates together. For another example, the document CN207816076U discloses a three-dimensional ribbed heat exchange plate, which comprises a base plate and ribs arranged on the base plate and integrally formed with the base plate. The ribs are arranged in a staggered structure or a parallel structure on the base plate, and form an included angle of 20-90° with the base plate. Grooves are arranged on the base plate between adjacent ribs.

[0004] However, the machining cost and efficiency of the heat exchange plate of the aforementioned heat exchanger need to be further optimized, and the machining difficulty needs to be further simplified, especially the turbulence performance needs to be further improved. INVENTION CONTENTS

[0005] The utility model aims at least to solve the technical problems mentioned in the background art, and provides a heat exchange plate and orifice plate heat exchanger.

[0006] The utility model adopts the following technical scheme.

[0007] A heat exchange plate comprises a plate body, a through hole is arranged on the plate body, a component connected to the through hole and folded is used as a heat exchange rib, and the heat exchange rib is connected to the edge of the through hole. In the present application, the through hole refers to a hole obtained by punching, and the heat exchange rib is a rib formed in the punching process and not detached, that is, the through hole and the heat exchange rib are punched by a punching tool with a non-ring-shaped blade.

[0008] In order to further reduce the machining difficulty and improve the machining efficiency, the heat exchange rib is integrally formed with the plate body.

[0009] In order to further improve the turbulence performance of the heat exchange plate, the heat exchange rib comprises an upper rib and a lower rib, the upper rib is arranged upward relative to the plate body, and the lower rib is arranged downward relative to the plate body.

[0010] Preferably, the upper and lower ribs correspond to different through holes respectively, and the upper ribs are arranged staggered with the lower ribs.

[0011] A perforated plate heat exchanger using the heat exchange plate as described above, comprising a shell frame, a plurality of heat exchange plates and solid plates arranged in parallel in the shell frame, a solid plate is clamped between adjacent heat exchange plates, and a heat exchange plate is clamped between adjacent solid plates; the space between adjacent solid plates serves as a flow channel for the heat exchange medium.

[0012] In order to further improve the turbulence performance and heat exchange efficiency of the heat exchange plate, each flow channel comprises a channel one and a channel two, the channel one and the channel two are communicated through the through hole, and the heat exchange ribs on the heat exchange plate also serve as turbulence elements for the heat exchange medium.

[0013] Preferably, the through hole is a polygonal hole.

[0014] In order to improve the stability of the perforated plate heat exchanger, the surface of the solid plate abuts against the heat exchange rib adjacent thereto.

[0015] Beneficial effects: compared with the traditional plate heat exchanger, the heat exchange plate and the perforated plate heat exchanger provided by the application have the advantages of low processing cost, small processing difficulty, good stability, high heat exchange efficiency and good turbulence performance, and the heat exchange plate can be simply and quickly processed by using a punching process, which is conducive to further thinning the heat exchange plate, and especially the heat exchange medium in the channel one and the channel two of the same flow channel of the plate heat exchanger can be mutually flowed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic view of the plate heat exchanger in the embodiment;

[0017] Figure 2 A Figure 1 A-A direction schematic view in the embodiment;

[0018] Figure 3 A schematic view of the layout mode of the heat exchange plate and the solid plate of the plate heat exchanger in the embodiment;

[0019] Figure 4 A schematic view of the heat exchange plate of the plate heat exchanger in the embodiment;

[0020] Figure 5 A schematic view of the heat exchange ribs and the through hole on the heat exchange plate in the embodiment. DETAILED DESCRIPTION

[0021] The technical solutions in the utility model will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. Embodiments

[0022] In combination Figures 1 to 5 As shown in the figure, a hole plate type heat exchanger comprises a shell frame 6, a plurality of heat exchange plates and solid plates 2 are arranged (installed) in parallel in the shell frame 6, the solid plates 2 play a supporting role for the heat exchange plates and a channel isolation role, a solid plate 2 is clamped between adjacent heat exchange plates, a heat exchange plate is clamped between adjacent solid plates 2, and the surface of the solid plate 2 abuts against the tip of the heat exchange fin adjacent thereto; the space between adjacent solid plates 2 serves as a flow channel for the heat exchange medium.

[0023] In the embodiment, the heat exchange plate comprises a plate body 1, a through hole 5 is arranged on the plate body 1, the through hole 5 is a polygonal hole, a component connected at the through hole 5 and folded after is used as a heat exchange fin, the heat exchange fin is connected at the edge of the through hole 5, and the heat exchange fin is integrally formed with the plate body 1. The heat exchange fin comprises upper fins 3 and lower fins 4, the number of the upper fins 3 and the lower fins 4 is the same and they are arranged uniformly, the upper fins 3 are arranged upward relative to the plate body 1, the lower fins 4 are arranged downward relative to the plate body 1, the upper fins 3 and the lower fins 4 correspond to different through holes 5 respectively, and the upper fins 3 and the lower fins 4 are arranged staggeredly. Scheme one for manufacturing the heat exchange fin: first, a solid sheet with a target thickness is selected, then a non-ring-shaped punching tool is used to punch the solid sheet, the through hole 5 is obtained after punching, and the material at the position of the through hole 5 before punching is folded to form the heat exchange fin, and the root of the heat exchange fin is not separated from (fixedly connected with) the solid sheet; scheme two for manufacturing the heat exchange fin: first, a solid sheet with a target thickness is selected, then a laser device is used to process a polygonal strip-shaped seam (the strip-shaped seam is a non-complete ring-shaped seam) on the solid sheet, and then a ejector rod is used to press the material inside the strip-shaped seam, so that the material inside the strip-shaped seam is folded to form the heat exchange fin.

[0024] In the embodiment, each flow channel comprises a channel one 7 and a channel two 8, the channel one 7 and the channel two 8 are communicated through the through hole 5, and the heat exchange fin on the heat exchange plate also serves as a turbulence element for the heat exchange medium.

[0025] In use, as Figure 2As shown, the light-colored arrow corresponds to the flow of the heat exchange medium one, the dark-colored arrow corresponds to the flow of the heat exchange medium two, the flow channels on both sides of the same entity plate 2 are used for the heat exchange medium one and the heat exchange medium two, when the heat exchange medium flows in the channel one 7 and the channel two 8, the heat exchange medium will impact the upper fin 3 and the lower fin 4 and form the turbulent flow, after the turbulent flow, the medium in the channel one 7 and the channel two 8 repeatedly changes the flow field, and also enters the through hole 5 to further change the flow field.

[0026] Compared with the traditional plate heat exchanger, the heat exchange plate and the perforated plate heat exchanger have the advantages of low processing cost, small processing difficulty, good stability, high heat exchange efficiency and good turbulent flow performance, and the heat exchange plate can be simply and quickly processed by using the punching process, which is beneficial to further thinning the heat exchange plate, and especially the heat exchange medium in the channel one and the channel two of the same flow channel of the plate heat exchanger can be mutually flowed.

Claims

1. A heat exchange plate, comprising a plate body (1), characterized in that: A through hole (5) is provided on the plate (1). A component connected to the through hole (5) and folded over is used as a heat exchange rib. The heat exchange rib is connected to the edge of the through hole (5). The heat exchange rib is integrally formed with the plate (1). The heat exchange rib includes an upper rib (3) and a lower rib (4). The upper rib (3) is arranged facing upward relative to the plate (1), and the lower rib (4) is arranged facing downward relative to the plate (1).

2. The heat exchange plate according to claim 1, characterized in that: The upper rib (3) and lower rib (4) correspond to different through holes (5), and the upper rib (3) and lower rib (4) are arranged in a staggered manner.

3. A perforated plate heat exchanger employing the heat exchange plate according to any one of claims 1-2, characterized in that: Includes a shell frame (6), in which several heat exchange plates and solid plates (2) are arranged in parallel. A solid plate (2) is sandwiched between adjacent heat exchange plates and between adjacent solid plates (2). The space between adjacent solid plates (2) serves as a flow channel for the heat exchange medium.

4. The orifice plate heat exchanger according to claim 3, characterized in that: Each flow channel includes channel one (7) and channel two (8), channel one (7) and channel two (8) are connected by through hole (5), and the heat exchange fins on the heat exchange plate also serve as turbulence elements for the heat exchange medium.

5. The orifice plate heat exchanger according to claim 4, characterized in that: The through hole (5) is a polygonal hole.

6. The orifice plate heat exchanger according to claim 5, characterized in that: The surface of the solid plate (2) is attached to the heat exchange fins adjacent to it.

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