High-pressure-bearing polygonal heat exchanger plate

Abstract

The utility model discloses a high-pressure-bearing polygonal heat exchanger plate, and relates to the technical field of preheating. The heat exchanger comprises a first heat exchange plate, a second heat exchange plate and a third heat exchange plate, wherein a plurality of convex bumps and concave bumps are arranged at the tops and the bottoms of the first heat exchange plate, the second heat exchange plate and the third heat exchange plate. During use, through cooperative arrangement of a plurality of first extrusion limiting plates and a plurality of first T-shaped sealing grooves, a downstream air channel can be formed between the first heat exchange plate and the second heat exchange plate, so that air enters from the upper air inlet and then is exhausted from the two upper air outlets, and in a similar way, the heat exchange efficiency is improved. A reverse flow air channel is formed between the first heat exchange plate and the third heat exchange plate, so that gas enters through the lower air inlet and then is exhausted from the two lower air outlets, reverse flow is formed, the heat exchange efficiency is greatly improved, spot welding is carried out at the concave bulge, the pressure resistance level can be improved, and normal use under the high-pressure working condition is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to preheating technical field, concretely relates to high pressure polygonal heat exchanger sheet. BACKGROUND

[0002] The heat exchanger is the equipment that two kinds of fluids carry out heat exchange and realize heating or cooling etc. purposes, is widely used in heating ventilation air conditioning, electric power, petrochemical, food pharmaceutical, ship, steel metallurgy etc. field, and the heat exchange sheet is the key component of heat exchanger, is used for realizing the exchange between cold, hot heat.

[0003] The heat exchange sheet of heat exchanger is generally stacked by multiple heat exchange sheets, one side of heat exchange sheet is uniformly distributed with multiple convex bulges, the other side is the concave groove of bulge corresponding position, when the heat exchange sheet is stacked, the bulge groove between adjacent two heat exchange sheets is opposite, and the medium capillary network is formed between these bulge grooves, the bulge between adjacent two heat exchange sheets is opposite, and the capillary network of another medium is formed between these bulges, two kinds of medium flow on the two sides of heat exchange sheet respectively, and the exchange between cold, hot heat is completed.

[0004] But the heat exchange sheet appearing on the market will appear heat exchange dead zone when using, waste heat exchange area, the overall crossflow heat exchange effect is poor, and the heat exchange sheet pressure effect is poor, and the phenomenon of increased resistance appears after long time operation. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides high pressure polygonal heat exchanger sheet to solve the problem that heat exchange dead zone will appear when using, waste heat exchange area, the overall crossflow heat exchange effect is poor, and the heat exchange sheet pressure effect is poor, and the phenomenon of increased resistance appears after long time operation.

[0006] The utility model discloses a high pressure polygonal heat exchanger sheet to solve the problem that heat exchange dead zone will appear when using, waste heat exchange area, the overall crossflow heat exchange effect is poor, and the heat exchange sheet pressure effect is poor, and the phenomenon of increased resistance appears after long time operation. The utility model discloses a high pressure polygonal heat exchanger sheet, including first heat exchange sheet, second heat exchange sheet, third heat exchange sheet, the top, bottom of first heat exchange sheet, second heat exchange sheet, third heat exchange sheet all be provided with multiple convex bulges, concave bulges, located the multiple convex bulges of first heat exchange sheet top respectively with the concave bulges of second heat exchange sheet bottom are attached, located the multiple concave bulges of first heat exchange sheet bottom respectively with the convex bulges of third heat exchange sheet top are attached, and every compatible two convex bulges and concave bulges can be reinforced through spot welding, the top and bottom of first heat exchange sheet, second heat exchange sheet, third heat exchange sheet all are provided with flow guide component, and first heat exchange sheet and second heat exchange sheet are set with the downflow air duct through first sealing component, and first heat exchange sheet and third heat exchange sheet are set with the counterflow air duct through second sealing component.

[0007] Preferably, the plurality of convex bumps and the plurality of concave bumps are designed as elliptical bosses, facilitating spot welding operation.

[0008] Preferably, the flow guide assembly comprises twelve inlet flow guide plates, six of which are arranged on the top of the first heat exchange sheet, and the remaining six are arranged on the bottom of the first heat exchange sheet, and the twelve inlet flow guide plates are respectively located on both sides of the first heat exchange sheet and are integrally formed by profiling operation.

[0009] Preferably, the first sealing assembly comprises a plurality of first extrusion limiting plates, which are respectively fixedly arranged on the bottom of the second heat exchange sheet, and the top of the first heat exchange sheet is provided with a plurality of first T-shaped sealing grooves, and the plurality of first extrusion limiting plates are respectively matched with the plurality of first T-shaped sealing grooves.

[0010] Preferably, the downflow air duct comprises an upper air inlet and two upper air outlets, the upper air inlet is located at the left end of the top of the first heat exchange sheet, and the two upper air outlets are respectively located at the two inclined edges of the right end of the top of the first heat exchange sheet.

[0011] Preferably, the second sealing assembly comprises a plurality of second extrusion limiting plates, which are respectively fixedly arranged on the bottom of the first heat exchange sheet, and the top of the third heat exchange sheet is provided with a plurality of second T-shaped sealing grooves, and the plurality of second extrusion limiting plates are respectively matched with the plurality of second T-shaped sealing grooves.

[0012] Preferably, the counter-flow air duct comprises a lower air inlet and two lower air outlets, the lower air inlet is arranged at the right end of the bottom of the first heat exchange sheet, and the two lower air outlets are respectively located at the two inclined edges of the left end of the bottom of the first heat exchange sheet.

[0013] Preferably, the bottom of the plurality of first T-shaped sealing grooves and the plurality of second T-shaped sealing grooves is provided with a T-shaped sealing pad.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model discloses a plurality of first extrusion limiting plates and a plurality of first T-shaped sealing grooves are matched and arranged, which can form a downflow air duct between the first heat exchange sheet and the second heat exchange sheet, so that the gas enters through the upper air inlet and is discharged from the two upper air outlet positions, and similarly, a plurality of second extrusion limiting plates and a plurality of second T-shaped sealing grooves are matched and arranged, which can form a counter-flow air duct between the first heat exchange sheet and the third heat exchange sheet, so that the gas enters through the lower air inlet and is discharged from the two lower air outlet positions, realizing counter-flow heat exchange and greatly improving heat exchange efficiency.

[0016] During the use of the utility model, when the pressure generated by the gas flowing through is small, no intervention is required, and the heat exchange process will not be affected by the strength of the heat exchange plate itself. When the pressure generated is large (such as exceeding the pressure-bearing range of the heat exchange plate itself), spot welding can be performed on the concave bulge to improve the pressure resistance level, facilitate normal use under high-pressure conditions, effectively reduce the weight of the outer box plate, and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the utility model from the first perspective;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 This is a partial cross-sectional structural diagram of the first heat exchange plate, the first T-shaped sealing groove, and the second extrusion limit plate of the utility model;

[0020] Figure 4 yes Figure 3 A in the middle is an enlarged structural diagram;

[0021] Figure 5 It is the left view of the utility model;

[0022] Figure 6 It is the right view of the utility model.

[0023] Figure numerals: 1. first heat exchange plate; 2. second heat exchange plate; 3. third heat exchange plate; 4. convex bulge; 5. concave bulge; 6. inlet guide plate; 7. upper air inlet; 8. upper air outlet; 9. lower air inlet; 10. lower air outlet; 11. first extrusion limit plate; 12. first T-shaped sealing groove; 13. second extrusion limit plate; 14. second T-shaped sealing groove; 15. T-shaped sealing gasket. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention must go beyond these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0025] Figures 1-6 This is the best embodiment of the present invention, Figures 1-6 The utility model is further described.

[0026] High pressure polygon heat exchanger plate, comprising first heat exchange plate 1, second heat exchange plate 2, third heat exchange plate 3, specifically, the first heat exchange plate 1, the second heat exchange plate 2 and the third heat exchange plate 4 have octagonal structure (as shown) and hexagonal (not shown) form, the both ends of the plate type are medium distribution section, the middle section is heat exchange section, as the main heat transfer area, the top and bottom of the first heat exchange plate 1, the second heat exchange plate 2 and the third heat exchange plate 3 are provided with a plurality of convex drums 4, concave drums 5, a plurality of convex drums 4 located at the top of the first heat exchange plate 1 are respectively matched with concave drums 5 located at the bottom of the second heat exchange plate 2, a plurality of concave drums 5 located at the bottom of the first heat exchange plate 1 are respectively matched with convex drums 4 located at the top of the third heat exchange plate 3, each two convex drums 4 and concave drums 5 matched can be reinforced by spot welding, the top and bottom of the first heat exchange plate 1, the second heat exchange plate 2 and the third heat exchange plate 3 are provided with flow guide components, the first heat exchange plate 1 and the second heat exchange plate 2 are provided with a straight flow air duct through the first sealing component, the first heat exchange plate 1 and the third heat exchange plate 3 are provided with a counter flow air duct through the second sealing component.

[0027] A plurality of convex drums 4 and a plurality of concave drums 5 are designed as elliptical bosses, which facilitates spot welding operation. By setting a plurality of convex drums 4 and a plurality of concave drums 5 as elliptical bosses, the matching can be more closely, forming a more stable airflow channel. When spot welding, the matching of the two elliptical bosses can make the spot welding more firm, improving the pressure bearing effect.

[0028] The flow guide component includes twelve inlet guide plates 6, six of which are arranged on the top of the first heat exchange plate 1, and the remaining six are arranged on the bottom of the first heat exchange plate 1. The twelve inlet guide plates 6 are respectively located on both sides of the first heat exchange plate 1 and are integrally formed by profiling operation. The setting of the inlet guide plate 6 can make the two heat exchange plates closely matched, realize stable flow guiding effect, and make the gas flow more quickly.

[0029] The first sealing component includes a plurality of first extrusion limiting plates 11, which are respectively fixedly arranged on the bottom of the second heat exchange plate 2. A plurality of first T-shaped sealing grooves 12 are formed on the top of the first heat exchange plate 1. The plurality of first extrusion limiting plates 11 are respectively matched with the plurality of first T-shaped sealing grooves 12. In this way, after the second heat exchange plate 2 and the first heat exchange plate 1 are connected, the plurality of first extrusion limiting plates 11 and the plurality of first T-shaped sealing grooves 12 can not only be limited, but also can seal the airflow, so that the airflow flows on one side of the first heat exchange plate 1.

[0030] The down-flow air duct comprises an upper air inlet 7, two upper air outlets 8, the upper air inlet 7 is located at the top left end of the first heat exchange sheet 1, the two upper air outlets 8 are respectively located at the two inclined edges of the top right end of the first heat exchange sheet 1, through the arrangement of the upper air inlet 7 and the two upper air outlets 8, the down-flow air duct can be formed between the first heat exchange sheet 1 and the second heat exchange sheet 2, so that the gas flows.

[0031] The second sealing assembly comprises a plurality of second extrusion limiting plates 13, the plurality of second extrusion limiting plates 13 are respectively fixedly arranged at the bottom of the first heat exchange sheet 1, a plurality of second T-shaped sealing grooves 14 are arranged at the top of the third heat exchange sheet 3, the plurality of second extrusion limiting plates 13 are respectively matched with the plurality of second T-shaped sealing grooves 14, through the clamping of the plurality of second extrusion limiting plates 13 and the plurality of second T-shaped sealing grooves 14, the first heat exchange sheet 1 and the third heat exchange sheet 3 can be limited, and the airflow can be sealed, so that the airflow flows on the other side of the first heat exchange sheet 1.

[0032] The counter-flow air duct comprises a lower air inlet 9 and two lower air outlets 10, the lower air inlet 9 is arranged at the bottom right end of the first heat exchange sheet 1, the two lower air outlets 10 are respectively located at the two inclined edges of the bottom left end of the first heat exchange sheet 1, through the arrangement of the lower air inlet 9 and the two lower air outlets 10, the counter-flow air duct can be formed between the first heat exchange sheet 1 and the third heat exchange sheet 3, so that the counter-flow heat exchange is realized.

[0033] The bottom of the plurality of first T-shaped sealing grooves 12 and the plurality of second T-shaped sealing grooves 14 is clamped and arranged with a T-shaped sealing gasket 15, specifically, the T-shaped sealing gasket 15 is a high-temperature-resistant sealing gasket, through the arrangement of the T-shaped sealing gasket 15 in the first T-shaped sealing groove 12 and the second T-shaped sealing groove 14, the sealing effect of the gas flow can be improved, and the airflow can be prevented from directly blowing, and the service life of the T-shaped sealing gasket 15 is reduced.

[0034] In summary: in use, the first heat exchange sheet 1, the second heat exchange sheet 2 and the third heat exchange sheet 3 are stacked and placed, so that the convex drum 4 and the concave drum 5 and the plurality of inlet guide plates 6 between every two sheets are attached, thereby forming a flow channel chamber, through the matching arrangement of the plurality of first extrusion limiting plates 11 and the plurality of first T-shaped sealing grooves 12, the down-flow air duct can be formed between the first heat exchange sheet 1 and the second heat exchange sheet 2, so that the gas enters through the upper air inlet 7 and is discharged from the two upper air outlets 8, similarly, through the arrangement of the plurality of second extrusion limiting plates 13 and the plurality of second T-shaped sealing grooves 14, the counter-flow air duct can be formed between the first heat exchange sheet 1 and the third heat exchange sheet 3, so that the gas enters through the lower air inlet 9 and is discharged from the two lower air outlets 10, forming counter-flow, and the heat exchange efficiency is greatly improved.

[0035] In use, when the pressure generated by the gas flowing through is small, no intervention is needed, and the heat exchange plate itself has strength and does not affect the heat exchange process; when the pressure generated is large (e.g. exceeds the pressure bearing range of the heat exchange plate itself), spot welding can be performed at the concave drum 5 to increase the pressure resistance level, facilitating normal use under high pressure working conditions, effectively reducing the weight of the outer box plate, and saving costs.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical solution of the present application.

Claims

1. High-pressure polygonal heat exchanger plate, comprising a first heat exchanger plate (1), a second heat exchanger plate (2), a third heat exchanger plate (3), characterized in that, The top and bottom of the first heat exchange sheet (1), the second heat exchange sheet (2) and the third heat exchange sheet (3) are provided with a plurality of convex bumps (4) and concave bumps (5), the plurality of convex bumps (4) on the top of the first heat exchange sheet (1) are respectively matched with the concave bumps (5) on the bottom of the second heat exchange sheet (2), and the plurality of concave bumps (5) on the bottom of the first heat exchange sheet (1) are respectively matched with the convex bumps (4) on the top of the third heat exchange sheet (3), and each matched pair of the convex bump (4) and the concave bump (5) can be reinforced by spot welding, the top and bottom of the first heat exchange sheet (1), the second heat exchange sheet (2) and the third heat exchange sheet (3) are provided with a flow guide assembly, and the first heat exchange sheet (1) and the second heat exchange sheet (2) are provided with a forward flow air duct through a first sealing assembly, and the first heat exchange sheet (1) and the third heat exchange sheet (3) are provided with a reverse flow air duct through a second sealing assembly.

2. The high-pressure polygonal heat exchanger gasket according to claim 1, characterized in that, The plurality of convex bumps (4) and the plurality of concave bumps (5) are designed as elliptical bosses, which facilitates spot welding operation.

3. The high-pressure polygonal heat exchanger gasket according to claim 1, characterized in that, The flow guide assembly comprises twelve inlet guide plates (6), six of which are arranged on the top of the first heat exchange sheet (1), and the remaining six are arranged on the bottom of the first heat exchange sheet (1), and the twelve inlet guide plates (6) are respectively located on both sides of the first heat exchange sheet (1) and are integrally formed by profiling operation.

4. The high-pressure polygonal heat exchanger gasket according to claim 1, characterized in that, The first sealing assembly comprises a plurality of first extrusion limiting plates (11), and the plurality of first extrusion limiting plates (11) are respectively fixedly arranged on the bottom of the second heat exchange sheet (2), and the top of the first heat exchange sheet (1) is provided with a plurality of first T-shaped sealing grooves (12), and the plurality of first extrusion limiting plates (11) are respectively matched with the plurality of first T-shaped sealing grooves (12).

5. The high-pressure polygonal heat exchanger gasket according to claim 1, wherein, The forward flow air duct comprises an upper air inlet (7) and two upper air outlets (8), the upper air inlet (7) is located at the left end of the top of the first heat exchange sheet (1), and the two upper air outlets (8) are respectively located at the two inclined edges of the right end of the top of the first heat exchange sheet (1).

6. The high-pressure polygonal heat exchanger gasket according to claim 4, characterized in that, The second sealing assembly comprises a plurality of second extrusion limiting plates (13), and the plurality of second extrusion limiting plates (13) are respectively fixedly arranged on the bottom of the first heat exchange sheet (1), and the top of the third heat exchange sheet (3) is provided with a plurality of second T-shaped sealing grooves (14), and the plurality of second extrusion limiting plates (13) are respectively matched with the plurality of second T-shaped sealing grooves (14).

7. The high-pressure polygonal heat exchanger gasket according to claim 1, characterized in that, The reverse flow air duct comprises a lower air inlet (9) and two lower air outlets (10), the lower air inlet (9) is arranged at the right end of the bottom of the first heat exchange sheet (1), and the two lower air outlets (10) are respectively located at the two inclined edges of the left end of the bottom of the first heat exchange sheet (1).

8. The high-pressure polygonal heat exchanger gasket according to claim 6, characterized in that, The bottom of the plurality of first T-shaped sealing grooves (12) and the plurality of second T-shaped sealing grooves (14) is provided with a T-shaped sealing pad (15).

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