CN220893089U - Single-row pipe heat collecting sheet structure, heat exchanger and water heater - Google Patents
Single-row pipe heat collecting sheet structure, heat exchanger and water heater Download PDFInfo
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- CN220893089U CN220893089U CN202322615882.XU CN202322615882U CN220893089U CN 220893089 U CN220893089 U CN 220893089U CN 202322615882 U CN202322615882 U CN 202322615882U CN 220893089 U CN220893089 U CN 220893089U
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- flanging
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a single-row pipe heat collecting plate structure, a heat exchanger and a water heater, which are characterized by comprising a substrate, a plurality of heat transfer pipe mounting holes penetrating through the substrate, a plurality of flanging holes I, a plurality of flanging holes II and flanging bosses which play a role in turbulence, wherein the plurality of flanging holes I are arranged around the heat transfer pipe with the same diameter and are symmetrically distributed left and right; the second flanging holes are arranged at the left and right sides of the leftmost and rightmost two heat transfer tube mounting holes; the flanging boss is arranged between two adjacent heat transfer tube mounting holes. The utility model improves the heat exchange coefficient of the heat collecting plate, simultaneously ensures that the temperature distribution of the downstream of the heat collecting plate is more uniform, and reduces the surface temperature of the heat exchanger; on the premise of meeting the heat exchange performance requirement, a smaller number of heat collecting sheets are used, so that the aim of reducing the cost is fulfilled.
Description
Technical Field
The utility model relates to the technical field of water heaters, in particular to a single-row pipe heat collecting sheet structure, a heat exchanger and a water heater.
Background
The heat collecting plate of the heat exchanger of the gas water heater in the market at present gradually transits to a single-row pipe, and the heat exchanging performance of the existing single-row pipe heat collecting plate still has room for improvement. For example, the Chinese patent grant publication number is CN212058450U, a heat exchanger fin, a heat exchanger and a gas water heater, wherein the heat exchanger fin comprises a fin body, a flow guide rib and a flow dividing piece; the fin body is provided with a plurality of mounting holes which are distributed at intervals along the length direction of the fin body; the guide ribs are convexly arranged on one side surface of the fin body, two guide ribs extending along the circumferential direction of the mounting hole are arranged above the mounting hole, and the two guide ribs are arranged at intervals; the flow dividing piece is arranged on the same side face of the fin body, which is the same as the side face where the flow guiding ribs are arranged, the flow dividing piece is arranged between two adjacent mounting holes, the lower end of the flow dividing piece is provided with a flow dividing surface, and the flow dividing surface is arranged below the lower end of the flow guiding ribs so as to divide the air flow flowing to the flow dividing piece to two sides of the flow dividing piece. According to the technical scheme, a plurality of mounting holes are distributed at intervals in the length direction of a fin body of the heat exchanger fin, and two guide ribs extending along the circumferential direction of the mounting holes are arranged above the mounting holes; the flow dividing piece is convexly arranged on the same side face of the fin body as the side face where the flow guide rib is arranged; its advantages are high consumption of material and inconsistent turbulent flow structure. For this reason, there is a need for further improvements in the art.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides the heat-collecting plate which is stable and reliable, improves the heat exchange coefficient of the heat-collecting plate, ensures that the temperature distribution at the downstream of the heat-collecting plate is more uniform, and reduces the surface temperature of the heat exchanger; on the premise of meeting the heat exchange performance requirement, a smaller number of heat collecting sheets are used, so that the aim of reducing the cost is fulfilled.
It is another object of the present utility model to provide a heat exchanger.
It is yet another object of the present utility model to provide a water heater.
The utility model adopts the following technical proposal to realize the aim: the single-row pipe heat collecting plate structure is characterized by comprising a base plate, a plurality of heat transfer pipe mounting holes penetrating through the base plate, a plurality of flanging holes I, a plurality of flanging holes II and flanging bosses which play a role in turbulence, wherein the plurality of flanging holes I are arranged around the heat transfer pipe in the same diameter and are symmetrically distributed left and right; the second flanging holes are arranged at the left and right sides of the leftmost and rightmost two heat transfer tube mounting holes; the flanging boss is arranged between two adjacent heat transfer tube mounting holes.
As a further illustration of the above, the heat transfer tube mounting hole aperture is 12-15mm; the aperture of the flanging hole I is 3-4mm, and the aperture of the flanging hole II is 2-3mm.
Further, more than three flanging bosses are arranged between every two heat transfer tubes, and the more than three flanging bosses are arranged in the middle of the heat transfer tubes and distributed in a step mode.
Further, a first flanging, a second flanging and a third flanging are arranged on the base plate, wherein the third flanging is a straight edge, the second flanging is a combination of the straight edge and an arc edge, and the third flanging is an arc edge.
Further, the height of the first flanging is larger than that of the second flanging and larger than that of the third flanging, and vortex is formed between every two flanging.
Further, the thickness of the base plate is 0.1-3mm, the outer edge of the heat transfer tube mounting hole is provided with an outwards extending convex edge, and the convex edge is provided with a plurality of bending sheets.
The heat exchanger is characterized by comprising a heat exchange tube and the single-row-tube heat collecting plate structure, wherein the heat exchange tube is arranged in the heat transfer tube mounting hole.
The water heater is characterized by comprising a shell and the heat exchanger, wherein the heat exchanger is arranged in the shell.
The beneficial effects achieved by adopting the technical proposal of the utility model are that.
The utility model adopts a single-row tube heat collecting plate structure which mainly comprises a base plate, a plurality of heat transfer tube mounting holes penetrating through the base plate, a plurality of flanging holes I, a plurality of flanging holes II and flanging bosses, wherein the flanging holes I are arranged around the heat transfer tube with the same diameter and are arranged in a bilateral symmetry manner; the second flanging holes are arranged at the left and right sides of the leftmost and rightmost two heat transfer tube mounting holes; the flanging bosses are arranged between two adjacent heat transfer tube mounting holes, small flanging holes are added at the edges of the fins by increasing the number of the flanging holes, and flanging heights between the heat transfer tubes are arranged at the same time, so that a plurality of flanging parts form steps; the surface heat exchange coefficient of the fins is improved, meanwhile, the temperature distribution of the downstream of the fins is more uniform, the edge temperature of the fins of the heat exchanger is reduced, and compared with the existing heat collecting sheets, the heat collecting sheets with a smaller number can be used on the premise of meeting the heat exchange performance requirement, so that the purpose of reducing the cost is achieved.
Drawings
Fig. A1 is a schematic diagram of a conventional heat collecting plate surface temperature distribution cloud chart.
Fig. A2 is a prior art cloud of fluid domain temperature distribution.
Fig. A3 is a prior art fluid domain velocity vector diagram.
Fig. B1 is a schematic diagram of a surface temperature distribution cloud chart of the heat collecting sheet according to the present utility model.
FIG. B2 is a cloud of fluid temperature distribution according to the present utility model.
Fig. B3 is a fluid domain velocity vector diagram of the present utility model.
FIG. 1 shows a single row tube collector sheet structure of the present utility model.
Fig. 2 is a front view of a single row tube collector sheet of the present utility model.
Fig. 3 is a partial detail view of a single row tube collector sheet of the present utility model.
Fig. 4 is a schematic view of a heat exchanger.
FIG. 5 is a schematic view of a water heater.
Reference numerals illustrate: 1. the heat exchanger comprises a base plate 2, a heat transfer tube mounting hole 2-1, a convex edge 2-2, a bending piece 3, a flanging hole 3-1, a flanging hole 3-2, a flanging hole two 4-1, a flanging one 4-2, a flanging two 4-3, a flanging three 5, a heat exchange tube 6, a shell 7 and a heat exchanger.
Detailed Description
In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the utility model, "at least" means one or more, unless clearly specifically defined otherwise.
In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The following description of the specific embodiments of the present utility model is further provided with reference to the accompanying drawings, so that the technical scheme and the beneficial effects of the present utility model are more clear and definite. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
The utility model relates to a single-row pipe heat collecting sheet structure, a heat exchanger and a water heater, wherein the single-row pipe heat collecting sheet structure structurally comprises a base plate 1 with the thickness of 0.2mm, 4 heat transfer pipe mounting holes 2 penetrating through the base plate, a plurality of flanging holes 3 playing a role in turbulent flow and flanging bosses, convex edges 2-1 extending outwards are arranged at the outer edges of the heat transfer pipe mounting holes 2, and a plurality of bending sheets 2-2 are arranged on the convex edges 2-1, as shown in figures 1-3. The aperture of the heat transfer tube mounting hole 2 is 13mm, the plurality of flanging holes 3 comprise a flanging hole I3-1 and a flanging hole II 3-2, the flanging holes I3-1 are arranged around the heat transfer tube mounting hole 2 in the same diameter, are symmetrically arranged left and right, and have the aperture of 3mm; the flanging holes II 3-2 are arranged at the left and right sides of the leftmost and rightmost two heat transfer tube mounting holes 2, and the aperture is 2mm; 3 groups of flanging bosses are arranged between every two heat transfer tube mounting holes 2, and the shape of the flanging bosses is shown in figure 1; wherein the third flanging 4-3 is a straight edge, the second flanging 4-2 is a combination of the straight edge and an arc edge, and the first flanging 4-1 is an arc edge; the height of the first flanging is greater than that of the second flanging and greater than that of the third flanging.
Table 1 shows the numerical simulation results of the existing heat collecting sheet and the new heat collecting sheet
| Scheme for the production of a semiconductor device | Existing heat collecting sheet | Novel heat collecting sheet |
| Outlet temperature/°c | 159.29 | 121.59 |
| Heat exchange coefficient of heat collecting plate surface/(w/m 2. K) | 53.39 | 60.58 |
| Inlet-outlet pressure difference/Pa | 29.76 | 30.8 |
。
As shown in fig. A1-B3, as seen from the temperature cloud chart of the fin surface, compared with the existing heat collecting sheet, the temperature distribution of the fin upper edge of the heat collecting sheet in the technical scheme is more uniform; the high temperature area of the heat collecting plate in the technical scheme is closer to the lower part of the fin. The temperature above the fins of the heat collecting plate in the technical scheme is lower as can be found from the fluid domain temperature distribution cloud chart. In the fluid domain velocity vector diagram, the high-speed regions of the existing heat collecting sheet are uniformly distributed in the transverse direction of the fins, and the high-speed regions are distributed on the leftmost and rightmost sides of the heat collecting sheet; the heat collecting sheet in the technical scheme has the flanging holes II on the leftmost side and the right side, plays a role in turbulence on flue gas, reduces the flow velocity, enables a high-speed area to be more concentrated in the fin, and can be found from a fluid domain temperature cloud chart. In addition, the flanging holes I are uniformly arranged in the circumferential direction of the heat transfer pipe of the heat collection sheet in the technical scheme, compared with the existing heat collection sheet, the heat collection sheet has stronger turbulence effect on fuel gas, and the heat exchange coefficient of the surface of the fin at the place can be improved, so that the heat collection sheet is also verified on a temperature cloud picture of the surface of the fin; in the speed vector diagram of the flange boss on the side surface of the new fin, the flange first height is larger than the flange second height is larger than the flange third height, the distance between the flange third and the adjacent fin is larger than the flange second and larger than the flange first, so that the speed vector diagram as shown in the figure is formed, and vortex is formed between every two flanges. The design can play a larger disturbance role on flue gas among fins, and further improves the convection heat transfer coefficient.
The outlet temperature of the heat collecting sheet in the technical scheme is 121.59 ℃, the existing heat collecting sheet is 159.29 ℃, and 23.67% of the temperature is reduced; the surface heat exchange coefficient of the heat collecting sheet in the technical scheme is 60.58, the existing heat collecting sheet is 53.39, and the improvement is 13.47%; the two groups of data show that the heat exchange capacity of the heat collecting plate in the technical scheme is better than that of the existing heat collecting plate, and the heat collecting plate in the technical scheme absorbs more heat, so that the temperature of the outlet flue gas is lower. The pressure difference between the inlet and the outlet of the model represents the flow resistance of flue gas, and the flow resistance of the new heat collecting sheet is 3.5% higher than that of the existing heat collecting sheet.
Fig. 4 shows a heat exchanger structurally comprising a heat exchange tube 5 and the single-row-tube heat collecting plate structure, wherein the heat exchange tube is arranged in the heat transfer tube mounting hole. Fig. 5 shows a water heater structurally comprising a housing 6 and said heat exchanger 7, the heat exchanger 7 being mounted in said housing 6.
Compared with the prior art, the single-row-pipe heat collecting plate structure has the advantages that the turbulence structure is mainly designed by a flanging hole, small flanging holes are formed in the edges of the heat collecting plates, three flanging bosses which are distributed in a stepped mode are arranged in the middle of the heat transfer pipe, the heat exchange coefficient of the heat collecting plates is improved, meanwhile, the temperature distribution of the downstream of the heat collecting plates is more uniform, and the edge temperature of the heat collecting plates of the heat exchanger is reduced; on the premise of meeting the heat exchange performance requirement, a smaller number of heat collecting sheets are used, so that the aim of reducing the cost is fulfilled.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (8)
1. The single-row pipe heat collecting plate structure is characterized by comprising a base plate, a plurality of heat transfer pipe mounting holes penetrating through the base plate, a plurality of flanging holes I, a plurality of flanging holes II and flanging bosses which play a role in turbulence, wherein the plurality of flanging holes I are arranged around the heat transfer pipe in the same diameter and are symmetrically distributed left and right; the second flanging holes are arranged at the left and right sides of the leftmost and rightmost two heat transfer tube mounting holes; the flanging boss is arranged between two adjacent heat transfer tube mounting holes.
2. A single row tube collector sheet structure as claimed in claim 1 wherein said heat transfer tube mounting hole aperture is 12-15mm; the aperture of the flanging hole I is 3-4mm, and the aperture of the flanging hole II is 2-3mm.
3. The heat collecting plate structure of single-row tubes according to claim 1, wherein more than three flanging bosses are arranged between every two heat transfer tubes, and more than three flanging bosses are arranged in the middle of the heat transfer tubes in a step-like distribution.
4. The single-row tube heat collecting sheet structure according to claim 1, wherein the first flange, the second flange and the third flange are arranged on the base plate, the third flange is a straight edge, the second flange is a combination of the straight edge and an arc edge, and the third flange is an arc edge.
5. The structure of claim 4, wherein the first flange has a height greater than the second flange has a height greater than the third flange, and a vortex is formed between each two flanges.
6. The structure of claim 1, wherein the thickness of the base plate is 0.1-3mm, the outer edge of the mounting hole of the heat transfer tube is provided with an outwardly extending convex edge, and the convex edge is provided with a plurality of bending sheets.
7. A heat exchanger comprising a heat exchange tube and the single row tube heat collecting sheet structure according to any one of claims 1 to 6, wherein the heat exchange tube is mounted in the heat transfer tube mounting hole.
8. A water heater comprising a housing and a heat exchanger according to claim 7, the heat exchanger being mounted in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615882.XU CN220893089U (en) | 2023-09-26 | 2023-09-26 | Single-row pipe heat collecting sheet structure, heat exchanger and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322615882.XU CN220893089U (en) | 2023-09-26 | 2023-09-26 | Single-row pipe heat collecting sheet structure, heat exchanger and water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220893089U true CN220893089U (en) | 2024-05-03 |
Family
ID=90838602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322615882.XU Active CN220893089U (en) | 2023-09-26 | 2023-09-26 | Single-row pipe heat collecting sheet structure, heat exchanger and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220893089U (en) |
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2023
- 2023-09-26 CN CN202322615882.XU patent/CN220893089U/en active Active
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| GR01 | Patent grant |