A spoiler, heat exchange device and gas water heating equipment

Abstract

The utility model belongs to heat exchange technical field, specifically discloses a kind of spoiler, heat exchange device and gas water heating equipment. Spoiler includes long strip's spoiler plate, and spoiler plate is spaced apart with multiple spoiler through holes along length direction, each spoiler through hole has relatively and spaced apart first hole wall and second hole wall, each first hole wall is connected with first spoiler piece, each second hole wall is connected with second spoiler piece, and the projection of first spoiler piece and second spoiler piece corresponding to same spoiler through hole is set on spoiler plate with dislocation;The free end of adjacent two first spoiler pieces is located at the opposite sides of spoiler plate respectively, and the free end of adjacent two second spoiler pieces is located at the opposite sides of spoiler plate respectively. Heat exchange device includes heat exchange pipe and spoiler, and spoiler is inserted in heat exchange pipe. The utility model can improve the spoiler effect of spoiler, and then improve heat exchange uniformity.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and in particular to a turbulence-disrupting component, a heat exchange device, and a gas-fired hot water equipment. Background Technology

[0002] Gas water heaters exchange heat between high-temperature flue gas and water at a heat exchanger. The heat exchanger consists of multiple heat exchange fins arranged side-by-side and heat exchange tubes running through the fins. Each heat exchange tube is connected to an inlet pipe and an outlet pipe. When the gas water heater is running, the burner located below the heat exchanger generates high-temperature flue gas. As the high-temperature flue gas flows upward through the heat exchange fins, it exchanges heat with the water in the heat exchange tubes, thus heating the water.

[0003] The prior art provides a heat exchanger that uses stainless steel tubes to replace the conventional copper tube structure in order to reduce the cost of the heat exchanger and improve its corrosion resistance. At the same time, the stainless steel tubes are elliptical tubes or racetrack-shaped tubes with a larger cross-sectional area than conventional round tubes to increase the heat exchange area and ensure heat exchange efficiency.

[0004] However, due to the low thermal conductivity of stainless steel tubes, the temperature of the lower part (the side closer to the flue gas flow direction) of the heat exchange tube is higher than that of the upper part, which leads to the formation of scale on the lower part of the heat exchange tube during long-term use, reducing the thermal conductivity of the heat exchange tube. At the same time, when the temperature of the lower inner wall of the heat exchange tube is too high, water vaporization is likely to occur, resulting in vaporization noise, affecting the user experience of the gas water heater, and shortening the service life of the heat exchanger. Utility Model Content

[0005] One of the technical problems solved by this invention is to provide a flow-turbing element that can effectively solve the problem of excessively high temperature on one side of the heat exchange tube during the heat exchange process, which leads to vaporization.

[0006] The second technical problem solved by this utility model is to provide a heat exchange device that can effectively solve the problem of excessively high temperature on one side of the existing heat exchange tube during the heat exchange process, which leads to vaporization.

[0007] The third technical problem solved by this utility model is to provide a gas-fired water heater that can effectively solve the technical problem of gasification noise generated during heat exchange and improve the user experience of the gas-fired water heater.

[0008] The first technical problem mentioned above is solved by the following technical solution:

[0009] A flow-dissipating element for use with a heat exchange tube, the flow-dissipating element comprising an elongated flow-dissipating plate, the flow-dissipating plate having a plurality of flow-dissipating holes spaced apart along its length, each flow-dissipating hole having a first hole wall and a second hole wall that are opposite to and spaced apart along the length, each first hole wall being connected to a first flow-dissipating plate that is angled to the flow-dissipating plate, each second hole wall being connected to a second flow-dissipating plate that is angled to the flow-dissipating plate, the projections of the first flow-dissipating plate and the second flow-dissipating plate corresponding to the same flow-dissipating hole on the flow-dissipating plate being offset along the width direction of the flow-dissipating plate;

[0010] The free ends of two adjacent first spoilers are located on opposite sides of the spoiler, and the free ends of two adjacent second spoilers are located on opposite sides of the spoiler.

[0011] Compared with the prior art, the turbulence-disrupting component of this utility model has the following advantages: by setting a first turbulence-disrupting plate and a second turbulence-disrupting plate on the opposite sides of the turbulence-disrupting hole, and by staggering the first turbulence-disrupting plate and the second turbulence-disrupting plate in the width direction of the turbulence plate, the fluid can be diverted along the thickness direction and the width direction of the turbulence plate under the action of the first turbulence-disrupting plate and the second turbulence-disrupting plate when it flows into the turbulence-disrupting hole. The arrangement of multiple first turbulence-disrupting plates and second turbulence-disrupting plates makes the fluid flow in an S-shape in the length direction of the turbulence-disrupting component. The turbulence-inducing component provided by this invention facilitates the formation of a spiral flow when the fluid flows through it. As the fluid flows through each turbulence orifice, it undergoes multiple splitting and merging along the thickness and width of the turbulence plate. This allows the fluid to achieve more uniform mixing after repeated splitting and merging, enhancing the turbulence effect of the fluid flowing through the turbulence-inducing component and improving the mixing effect of the fluid at various points. Consequently, the low-temperature water and high-temperature water in the heat exchange tube can be fully mixed, avoiding the problem of excessive heat absorption and vaporization caused by local high temperatures. This reduces vaporization noise, improves the heat exchange effect of the heat exchange device, and enhances the user experience of the heat exchange device.

[0012] In one embodiment, the free ends of the first and second baffles corresponding to the same baffle orifice are located on the baffle plate;

[0013] And / or, the free end of the first baffle extends obliquely toward the second hole wall, and the free end of the second baffle extends obliquely toward the first hole wall.

[0014] In one embodiment, in a projection plane perpendicular to the length direction of the spoiler, the free ends of the first spoiler and the second spoiler corresponding to the same spoiler hole partially overlap.

[0015] And / or, when the first spoiler and the second spoiler are unfolded to be parallel to the spoiler plate, an inter-piece notch is formed between the opposite sides of the first spoiler and the second spoiler corresponding to the same spoiler hole;

[0016] In one embodiment, the first baffle plate has a first groove on the side facing the second baffle plate, and the free end of the first baffle plate has a first protrusion protruding in the direction toward the second baffle plate.

[0017] The second spoiler has a second groove on the side facing the first spoiler, and the free end of the second spoiler has a second protrusion protruding in the direction toward the second spoiler;

[0018] When the first and second spoilers are unfolded to be parallel to the spoiler plate, the first protrusion extends into the second groove, and the second protrusion extends into the first groove.

[0019] In one embodiment, when the first spoiler and the second spoiler are unfolded to be parallel to the spoiler plate, the first protrusion and the groove wall of the second groove are spaced apart, and the second protrusion and the groove wall of the first groove are spaced apart.

[0020] In one embodiment, along the length of the spoiler, the free end of the first spoiler corresponding to the same spoiler hole is spaced apart from the free end of the second spoiler.

[0021] In one embodiment, each of the first hole walls is connected to a third baffle plate that is angled to the baffle plate. The third baffle plate is arranged side by side with the first baffle plate in the width direction of the baffle plate and is directly opposite to the second baffle plate in the length direction of the baffle plate. The free ends of the first baffle plate and the third baffle plate connected to the same first hole wall are located on opposite sides of the baffle plate.

[0022] And / or, each of the second hole walls is connected to a fourth spoiler that is angled to the spoiler. The fourth spoiler and the second spoiler are arranged side by side in the width direction of the spoiler and are directly opposite the first spoiler in the length direction of the spoiler. The free ends of the second spoiler and the fourth spoiler connected to the same second hole wall are located on opposite sides of the spoiler.

[0023] In one embodiment, the free end of the first baffle has a first mating side, and the free end of the second baffle has a second mating side, both the first mating side and the second mating side being adapted to the shape of the inner wall of the heat exchange tube.

[0024] And / or, the disturbance orifice has two third hole walls that are opposite to and spaced apart in the width direction of the disturbance member, and in the width direction of the disturbance plate, the first disturbance plate and the second disturbance plate are spaced apart from the third hole wall on the corresponding side to form a disturbance gap.

[0025] The second technical problem mentioned above is solved by the following technical solution:

[0026] A heat exchange device includes a heat exchange tube and a flow-dispersing element as described above, the flow-dispersing element being inserted into the heat exchange tube.

[0027] Compared with the prior art, the heat exchange device of this utility model has the following advantages: by using the above-mentioned turbulence-inducing element in the heat exchange tube, the degree of fluid turbulence in the heat exchange tube can be improved, the heat exchange uniformity of the fluid in the heat exchange tube can be enhanced, the problem of fluid vaporization caused by local high temperature in the heat exchange tube can be avoided, the user experience of the heat exchange device can be improved, and the service life of the heat exchange device can be extended.

[0028] In one embodiment, the free end of the first baffle has a first mating side, the free end of the second baffle has a second mating side, and the distance between the first mating side and / or the second mating side and the inner wall of the heat exchange tube is less than 2 mm.

[0029] The third technical problem mentioned above is solved by the following technical solution:

[0030] A gas-fired hot water device includes a heat exchange device as described above.

[0031] Compared with the prior art, the gas-fired water heater of this utility model has the following advantages: by using the above-mentioned heat exchange device in the heat exchange device, the heat exchange effect can be improved, the vaporization phenomenon caused by local high temperature during heat exchange can be avoided, the probability of vaporization noise can be reduced, and the user experience of the gas-fired water heater can be improved. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the heat exchange device provided in Embodiment 1 of the present invention;

[0033] Figure 2 This is a longitudinal sectional view of the heat exchange device provided in Embodiment 1 of this utility model;

[0034] Figure 3 This is a front view of the heat exchange device provided in Embodiment 1 of this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the baffle provided in Embodiment 1 of this utility model;

[0036] Figure 5 for Figure 4 A magnified view of a section at point I;

[0037] Figure 6 A schematic diagram of fluid flow through a turbulence-inducing element is provided for Embodiment 1 of this utility model;

[0038] Figure 7 A top view of the aerodynamic component provided in Embodiment 1 of this utility model;

[0039] Figure 8 for Figure 7 A magnified view of a section at point J;

[0040] Figure 9 A top view of the spoiler provided in Embodiment 1 of this utility model when it is in the deployed state;

[0041] Figure 10 for Figure 9 A magnified view of a section at point K;

[0042] Figure 11 This is a schematic diagram of the fluid flow simulation results of the heat exchange device provided in Embodiment 1 of this utility model;

[0043] Figure 12 This is a schematic diagram of the heat exchanger tube wall temperature distribution of the heat exchanger device provided in Embodiment 1 of this utility model;

[0044] Figure 13 This is a schematic diagram of the structure of the baffle provided in Embodiment 2 of this utility model;

[0045] Figure 14 for Figure 13 A magnified view of a section at point L;

[0046] Figure 15 This is a schematic diagram of the structure of the baffle provided in Embodiment 3 of this utility model;

[0047] Figure 16 for Figure 15 A magnified view of a section at point M.

[0048] Label Explanation:

[0049] 100. Fluid flow control components; 200. Heat exchange tubes;

[0050] 1. Spoiler; 11. Spoiler orifice; 111. First orifice wall; 112. Second orifice wall; 113. Third orifice wall;

[0051] 2. First spoiler; 21. First mating side; 22. First inner side; 23. First outer side; 24. First groove; 25. First protrusion;

[0052] 3. Second spoiler; 31. Second mating side; 32. Second inner side; 33. Second outer side; 34. Second groove; 35. Second protrusion;

[0053] 5. Folded edge; 6. Blower gap; 7. Third spoiler; 8. Fourth spoiler; 9. Spacing between spoilers. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] Example 1

[0059] This embodiment provides a heat exchange device that can enhance the turbulence of fluid flow inside the heat exchange device, prolong the flow path and flow time of the fluid inside the heat exchange device, and improve the heat exchange effect.

[0060] like Figures 1 to 8As shown, the heat exchange device includes a heat exchange tube 200 and a flow-dispersing element 100 inserted inside the heat exchange tube 200. The heat exchange tube 200 has a heat exchange cavity for introducing fluid, and the flow-dispersing element 100 extends in the same direction as the heat exchange tube 200. The flow-dispersing element 100 is used to turbulent the fluid flow inside the heat exchange tube 200 to improve the heat exchange uniformity of the fluid inside the heat exchange tube 200.

[0061] Specifically, the spoiler 100 includes a long strip-shaped spoiler 1. The spoiler 1 has multiple spoiler holes 11 spaced apart along its length. Each spoiler hole 11 has a first hole wall 111 and a second hole wall 112 that are opposite to and spaced apart along its length. Each first hole wall 111 is connected to a first spoiler 2 that forms an angle with the spoiler 1, and each second hole wall 112 is connected to a second spoiler 3 that forms an angle with the spoiler 1. The projections of the first spoiler 2 and the second spoiler 3 corresponding to the same spoiler hole 11 onto the spoiler 1 are staggered along the width direction of the spoiler 1. The free ends of two adjacent first spoilers 2 are located on opposite sides of the spoiler 1, and the free ends of two adjacent second spoilers 3 are also located on opposite sides of the spoiler 1.

[0062] For ease of subsequent description, the side wall of the disturbance flow hole 11 facing the direction of the incoming flow is referred to as the first hole wall 111, and the other opposite hole wall is referred to as the second hole wall 112.

[0063] The flow-deflecting element 100 and heat exchange device provided in this embodiment, since each flow-deflecting hole 11 has a first flow-deflecting plate 2 on its first hole wall 111 and a second flow-deflecting element 100 on its second hole wall 112, ensure that when the fluid flows towards the flow-deflecting hole 11, part of the fluid directly passes through the flow-deflecting hole 11 from one side of the flow-deflecting plate 1, while another part of the fluid flows along the width direction of the flow-deflecting plate 1 to the flow-deflecting hole 11 under the stopping action of the first flow-deflecting plate 2, and part of this part of the fluid flows directly through the flow-deflecting hole 11 to the next... The fluid flows through the turbulence hole 11, and another part flows to the second turbulence plate 3. Under the action of the second turbulence plate 3, part of the fluid flows along the width direction of the turbulence plate 1. Under the action of the heat exchange tube 200 wall, part of the fluid passes through the turbulence hole 11 and part of the fluid flows directly to the next turbulence hole 11. Since the free ends of the two adjacent first turbulence plates 2 are located on opposite sides of the turbulence plate 1, and the free ends of the two adjacent second turbulence plates 3 are located on opposite sides of the turbulence plate 1, the fluid flows in an S-shape when passing through the two adjacent turbulence holes 11.

[0064] The turbulence-disrupting element 100 provided in this embodiment facilitates the formation of a spiral flow when the fluid flows through it. This allows the fluid to undergo multiple splitting and merging along the thickness and width of the turbulence-disrupting plate 1 when flowing through each turbulence-disrupting orifice 11. This repeated splitting and merging of the fluid results in a more uniform mixing, enhancing the turbulence effect of the fluid flowing through the turbulence-disrupting element 100 and improving the mixing effect of the fluid at various points. Consequently, the low-temperature water and high-temperature water in the heat exchange tube 200 can be fully mixed, avoiding the problem of excessive heat absorption and vaporization caused by local high temperatures. This reduces vaporization noise, improves the heat exchange effect of the heat exchange device, and enhances the user experience of the heat exchange device.

[0065] like Figures 3 to 10 As shown, in one embodiment, the free ends of the first baffle 2 and the second baffle 3 corresponding to the same baffle orifice 11 are located on the same side of the baffle orifice 11, which is more conducive to impacting the fluid bypassing the first baffle 2 and guiding part of the fluid to flow along the opposite sides in the width direction. In other embodiments, the free ends of the first baffle 2 and the second baffle 3 corresponding to the same baffle orifice 11 may also be located on opposite sides of the baffle 1.

[0066] In one embodiment, the free end of the first baffle 2 is inclined toward the second hole wall 112 of the corresponding baffle orifice 11, and the free end of the second baffle 3 is inclined toward the first hole wall 111 of the corresponding baffle orifice 11. That is, the free ends of the first baffle 2 and the second baffle 3 of the same baffle orifice 11 are close to each other, and the projections of the first baffle 2 and the second baffle 3 on the baffle plate 1 are both within the projection range of the corresponding baffle plate 1. Thus, by the inclined arrangement of the first baffle 2 and the second baffle 3, the fluid can be better guided to flow into the corresponding baffle orifice 11; at the same time, since the free ends of the first baffle 2 and the second baffle 3 are close to each other, some of the fluid can be better guided to flow along the width direction of the baffle plate 1, strengthening the flow alternation phenomenon through the baffle 100 and further improving the degree of turbulent flow in the heat exchange tube 200.

[0067] In other embodiments, the first spoiler 2 and the second spoiler 3 may also be arranged perpendicularly to the spoiler 1, or the free ends of the first spoiler 2 and the second spoiler 3 may extend in a direction away from each other.

[0068] In one embodiment, the angle between the first spoiler 2 and the second spoiler 3 and the spoiler 1 is 90° to 145°, specifically, it can be 90°, 100°, 110°, 120°, 125°, 130°, 135°, 140°, 145°, etc.

[0069] In one embodiment, the first spoiler 2 and the second spoiler 3 are formed by bending from the edge of the spoiler passage 11, thereby making the first spoiler 2 and the second spoiler 1 integrally formed with the spoiler 1. This allows the first spoiler 2 and the second spoiler 3 to be formed by punching on a sheet metal part, making the spoiler 100 easy to process and improving the overall structural strength and rigidity of the spoiler 100. In other embodiments, the first spoiler 2 and / or the second spoiler 3 are welded to the spoiler 1 or connected by riveting, screw connection, snap-fit, or other connection methods.

[0070] In one embodiment, when the first baffle 2 and the second baffle 3 are unfolded to be parallel to the baffle plate 1, the first baffle 2 and the second baffle 3 partially overlap in the length direction of the baffle plate 1. That is, in the projection plane perpendicular to the width direction of the baffle plate 1, the orthographic projections of the first baffle 2 and the second baffle 3 partially overlap. Since the first baffle 2 and the second baffle 3 partially overlap in the length direction, the length of the first baffle 2 and the second baffle 3 can be increased without changing the length of the baffle orifice 11, which is beneficial for placing the first baffle 2 and the second baffle 3 closer to the tube wall of the heat exchange tube 200.

[0071] Furthermore, when the first spoiler 2 and the second spoiler 3 are unfolded to be parallel to the spoiler 1, the projections of the first spoiler 2 and the second spoiler 3 do not coincide in the projection plane perpendicular to the thickness direction of the spoiler 1. This facilitates the forming of the first spoiler 2 and the second spoiler 3 by punching the spoiler 1, reducing the processing difficulty and cost of the spoiler component 100.

[0072] To further enhance the turbulence effect of the baffle 100 within the heat exchange tube 200, the free end of the first baffle 2 has a first mating side 21, and the free end of the second baffle 3 has a second mating side 31. Both the first mating side 21 and the second mating side 31 are adapted to fit the tube wall of the heat exchange tube 200, and the distance between the first mating side 21 and the second mating side 31 and the tube wall of the heat exchange tube 200 is less than a preset distance. By setting the first mating side 21 on the first baffle 2 and the second mating side 31 on the second baffle 3, the fluid can be guided to the turbulence orifice 11 through the first mating side 21 and the second mating side 31, reducing the fluid that passes directly through the gap between the free ends of the first baffle 2 and the second baffle 3 and the tube wall of the heat exchange tube 200, thus better preventing laminar flow at the tube wall of the heat exchange tube 200 and improving the turbulence effect.

[0073] In one embodiment, the preset spacing is 2mm, that is, the spacing between the first mating side 21 and the second mating side 31 and the wall of the heat exchange tube 200 can be, but is not limited to, 0mm, 0.02mm, 0.05mm, 0.07mm, 1mm, 1.25mm, 1.5mm, 1.75mm and 2mm, etc.

[0074] Furthermore, when the first baffle plate 2 and the second baffle plate 3 are unfolded to be parallel to the baffle plate 1, an inter-plate gap 9 is formed between the opposite sides of the first baffle plate 2 and the second baffle plate 3 corresponding to the same baffle flow hole 11. This arrangement allows some fluid to flow through the gap between the first inner side 22 and the second inner side 32 into the next baffle flow hole 11, further enhancing the baffle effect; at the same time, the inter-plate gap 9 also ensures that the projections of the first baffle plate 2 and the second baffle plate 3 on the baffle plate 1 are staggered, which is beneficial for the processing of the baffle component 100.

[0075] The first spoiler 2 has a first inner side 22 and a first outer side 23 in the width direction of the spoiler 1, and the second spoiler 3 has a second inner side 32 and a second outer side 33 in the width direction of the spoiler 1. The first inner side 22 is closer to the second spoiler 3 relative to the first outer side 23, and the second inner side 32 is closer to the first spoiler 2 relative to the second outer side 33. The first inner side 22 and the second inner side 32 are arranged opposite to each other and at intervals, that is, an inter-strip gap 9 is formed between the first inner side 22 and the second inner side 32.

[0076] The first mating side 21 extends from the end of the first inner side 22 away from the first hole wall 111 to the end of the first outer side 23 away from the first hole wall 111, and the second mating side 31 extends from the end of the second inner side 32 away from the second hole wall 112 to the end of the second outer side 33 away from the second hole wall 112. On the basis of keeping the width and length of the first baffle 2 and the second baffle 3 unchanged, the length of the first mating side 21 and the second mating side 31 is increased to improve the mating effect of the baffle 100 and the heat exchange tube 200.

[0077] In one embodiment, in a projection plane perpendicular to the length direction of the baffle 1, the free ends of the first baffle 2 and the second baffle 3 corresponding to the same baffle flow hole 11 are directly opposite each other. Thus, when the fluid flows between the first baffle 2 and the second baffle 3, the fluid flows around the first protrusion 25 and the second protrusion 35, facilitating swirling flow and enhancing the turbulence effect.

[0078] In one embodiment, the free ends of the first baffle 2 and the second baffle 3 are spaced apart along the length of the baffle 1. This facilitates the formation of a gap between the free ends of the first baffle 2 and the second baffle 3 for fluid to pass through, thereby allowing the fluid to pass through the first baffle 2 and the second baffle 3 to form a swirling flow, while also preventing interference between the first baffle 2 and the second baffle 3.

[0079] To further enhance the turbulence effect, in one embodiment, the first turbulence deflector 2 has a first groove 24 on the side facing the second turbulence deflector 3, and the free end of the first turbulence deflector 2 has a first protrusion 25 protruding in the direction towards the second turbulence deflector 3; the second turbulence deflector 3 has a second groove 34 on the side facing the first turbulence deflector 2, and the free end of the second turbulence deflector 3 has a second protrusion 35 protruding in the direction towards the second turbulence deflector 3; when the first turbulence deflector 2 and the second turbulence deflector 3 are unfolded to be parallel to the spoiler plate 1, the first protrusion 25 partially extends into the second groove 34, and the second protrusion 35 partially extends into the first groove 24. This arrangement facilitates the overlapping of the free ends of the first turbulence deflector 2 and the second turbulence deflector 3 in the width direction of the spoiler plate 1 while ensuring that the first turbulence deflector 2 and the second turbulence deflector 3 can be punched and formed, thereby improving the ease of setting the spoiler 100 and reducing the processing difficulty of the spoiler 100.

[0080] Specifically, the first inner side 22 has a first groove 24 and a second protrusion 35, and the first protrusion 25 is located at the end of the first inner side 22 away from the first hole wall 111. The second inner side 32 has a second groove 34 and a second protrusion 35, and the second protrusion 35 is located at the end of the second inner side 32 away from the second hole wall 112.

[0081] The first protrusion 25 is spaced apart from the groove wall of the first groove 24, and the second protrusion 35 is spaced apart from the groove wall of the second groove 34, so as to facilitate the formation of a gap for fluid flow between the first baffle 2 and the second baffle 3, and to facilitate the punching of the first baffle 2 and the second baffle 3.

[0082] The first groove 24 and the second groove 34 are preferably rectangular grooves, and the first protrusion 25 and the second protrusion 35 are preferably rectangular structures, which helps to reduce the processing difficulty and improve the processing convenience. In other embodiments, the first groove 24 and the second groove 34 can also be arc-shaped grooves, trapezoidal grooves or other shapes.

[0083] In one embodiment, the flow-disrupting hole 11 has third hole walls 113 that are opposite to and spaced apart in the width direction of the flow-disrupting plate 1. The first flow-disrupting plate 2 and the second flow-disrupting plate 3 are respectively spaced apart from the third hole walls 113 on their corresponding sides to form a flow-disrupting gap 6. Some fluid can flow through the flow-disrupting gap 6 to further achieve flow separation and mixing. At the same time, the setting of the flow-disrupting gap 6 also facilitates the punching and forming of the first flow-disrupting plate 2 and the second flow-disrupting plate 3. The flow-disrupting gap 6 is preferably 0.5 mm to 2 mm.

[0084] The distance between the first mating side 21 and the corresponding third hole wall 113 is less than the distance between the first outer side 23 and the third hole wall 113, and the distance between the second mating side 31 and the corresponding third hole wall 113 is less than the distance between the second outer side 33 and the third hole wall 113. This arrangement can extend the length of the first mating side 21 and the second mating side 31 while ensuring the size of the turbulence gap 6.

[0085] In one embodiment, the baffle plate 1 has folded edges 5 on both sides along its width direction. This prevents the sharp edges of the baffle plate 1 from scraping the inner wall of the heat exchange tube 200 when the baffle plate 100 is inserted into the heat exchange tube 200, thus improving the safety of the flow guiding structure. At the same time, the folded edges 5 also enhance the overall structural strength and rigidity of the baffle plate 100, reduce the probability of deformation of the baffle plate 100, and improve the stability and reliability of the baffle plate 100.

[0086] Furthermore, the included angle between the folded edge 5 and the baffle 1 can be 90° to 120°, which can avoid the problem that the baffle 100 is difficult to install into the heat exchange tube 200 due to burrs at the edge of the baffle 1, and improve the installation convenience of the baffle 100.

[0087] In one embodiment, the two folded edges 5 respectively form the opposite side walls of the disturbance flow hole 11, thereby increasing the width of the disturbance flow hole 11 while keeping the width of the spoiler plate 1 unchanged. In other embodiments, the opposite side walls of the disturbance flow hole 11 may also be spaced apart from the folded edges 5.

[0088] Fluid analysis software was used to perform fluid simulation on the heat exchange device provided by this invention, and the simulation parameters are shown in the table below:

[0089] Table 1 Simulation Parameters

[0090]

[0091] The streamline diagram obtained inside the heat exchange tube 200 is as follows Figure 11 As shown in the figure, the temperature distribution of the heat exchange tube 200 is as follows: Figure 12 As shown, by Figure 11 and Figure 12As shown, the fluid flow uniformity in the heat exchange tube 200 is good, and the temperature uniformity at the tube wall is also good. That is, the heat exchange uniformity of the fluid in the heat exchange tube 200 can be significantly improved, effectively reducing the occurrence of local high temperature on the tube wall and improving the performance of the heat exchange device.

[0092] This embodiment also provides a gas-fired water heater, which includes a condensing heat exchange device having the aforementioned heat exchange device. By employing the aforementioned heat exchange device in the condensing heat exchange device, the gas-fired water heater provided in this embodiment can improve the heat exchange effect, avoid vaporization caused by localized high temperatures during heat exchange, reduce the probability of vaporization noise, and improve the user experience of the gas-fired water heater.

[0093] Example 2

[0094] This embodiment provides a flow-deflecting element 100 and a heat exchange device including the flow-deflecting element 100. The structure of the flow-deflecting element 100 provided in this embodiment is basically the same as that of the flow-deflecting element 100 in the above embodiments, with only some differences in the configuration. This embodiment will not repeat the same structure as in Embodiment 1.

[0095] like Figure 13 and Figure 14 As shown, in this embodiment, the first inner side 22 of the first spoiler 2 and the second inner side 32 of the second spoiler 3 are arranged parallel and spaced apart, and the first inner side 22 and the second inner side 32 are planar structures, which can simplify the processing of the first spoiler 2 and the second spoiler 3 and reduce the processing difficulty and processing cost of the spoiler 100.

[0096] The remaining structure of the spoiler 100 can be set with reference to the above embodiment, and will not be described again here.

[0097] Example 3

[0098] This embodiment provides a flow-dispersing element and a heat exchange device including the flow-dispersing element. The basic structure of the flow-dispersing element provided in this embodiment is the same as that in the above embodiments, with only some differences in the configuration. This embodiment will not repeat the structure that is the same as that in the above embodiments.

[0099] like Figure 15 and Figure 16As shown, in this embodiment, each first hole wall 111 is connected to a third spoiler 7 arranged at an angle to the spoiler 1. The third spoiler 7 and the first spoiler 2 are arranged side by side in the width direction of the spoiler 1 and are directly opposite the second spoiler 3 in the length direction of the spoiler 1. The free ends of the first spoiler 2 and the third spoiler 7 connected to the same first hole wall 111 are located on opposite sides of the spoiler 1. Each second hole wall 112 is connected to a fourth spoiler 8 arranged at an angle to the spoiler 1. The fourth spoiler 8 and the second spoiler 3 are arranged side by side in the width direction of the spoiler 1 and are directly opposite the first spoiler 2 in the length direction of the spoiler 1. The free ends of the second spoiler 3 and the fourth spoiler 8 connected to the same second hole wall 112 are located on opposite sides of the spoiler 1.

[0100] The turbulence-dispersing component 100 provided in this embodiment provides a third turbulence-dispersing component 7 on the side of the first turbulence-dispersing component 2 and a fourth turbulence-dispersing component 8 on the side of the second turbulence-dispersing component 3. This allows a portion of the water flow passing through the turbulence-dispersing hole 11 to flow along the width direction of the turbulence-dispersing component 7 or the fourth turbulence-dispersing component 8, thereby enhancing the diversion effect of the water flow when it flows through the turbulence-dispersing hole 11, improving the turbulence level in the heat exchange tube 200, and thus improving the heat exchange uniformity.

[0101] In other embodiments, only the third spoiler 7 or only the fourth spoiler 8 may be provided.

[0102] In this embodiment, in the projection plane perpendicular to the length direction of the spoiler 1, the orthographic projections of the third spoiler 7 and the second spoiler 3 in the projection plane completely overlap, and the orthographic projections of the fourth spoiler 8 and the first spoiler 2 in the projection plane completely overlap, thereby simplifying the structure and reducing the processing difficulty.

[0103] In this embodiment, when each spoiler is unfolded to be flush with the spoiler plate 1, the first spoiler plate 2 and the fourth spoiler plate 8 are spaced apart along the length of the spoiler plate 1, and the second spoiler plate 3 and the third spoiler plate 7 are spaced apart, so as to avoid interference between the spoilers and facilitate the formation of each spoiler by punching, thereby reducing the processing difficulty of the spoiler 100.

[0104] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0105] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flow-deflecting element for use with a heat exchange tube (200), characterized in that, The spoiler includes a long strip-shaped spoiler plate (1), which has a plurality of spoiler holes (11) spaced apart along its length. Each spoiler hole (11) has a first hole wall (111) and a second hole wall (112) that are opposite to and spaced apart along its length. Each first hole wall (111) is connected to a first spoiler piece (2) that is angled to the spoiler plate (1), and each second hole wall (112) is connected to a second spoiler piece (3) that is angled to the spoiler plate (1). The projections of the first spoiler piece (2) and the second spoiler piece (3) corresponding to the same spoiler hole (11) on the spoiler plate (1) are offset along the width direction of the spoiler plate (1). The free ends of two adjacent first spoilers (2) are located on opposite sides of the spoiler (1), and the free ends of two adjacent second spoilers (3) are located on opposite sides of the spoiler (1).

2. The aerodynamic component according to claim 1, characterized in that, The free ends of the first baffle (2) and the second baffle (3) corresponding to the same baffle hole (11) are located on the same side of the baffle plate (1); And / or, the free end of the first baffle (2) extends obliquely toward the second hole wall (112), and the free end of the second baffle (3) extends obliquely toward the first hole wall (111).

3. The aerodynamic component according to claim 2, characterized in that, In the projection plane perpendicular to the length direction of the spoiler (1), the orthographic projection of the free end of the first spoiler (2) corresponding to the same spoiler hole (11) and the orthographic projection of the free end of the second spoiler (3) partially overlap. And / or, when the first spoiler (2) and the second spoiler (3) are unfolded to be parallel to the spoiler plate (1), a notch (9) is formed between the opposite sides of the first spoiler (2) and the second spoiler (3) corresponding to the same spoiler hole (11).

4. The aerodynamic component according to claim 3, characterized in that, The first spoiler (2) has a first groove (24) on the side facing the second spoiler (3), and the free end of the first spoiler (2) has a first protrusion (25) protruding in the direction facing the second spoiler (3); The second spoiler (3) has a second groove (34) on the side facing the first spoiler (2), and the free end of the second spoiler (3) has a second protrusion (35) protruding in the direction facing the second spoiler (3); When the first spoiler (2) and the second spoiler (3) are unfolded to be parallel to the spoiler plate (1), the first protrusion (25) extends into the second groove (34), and the second protrusion (35) extends into the first groove (24).

5. The aerodynamic component according to claim 4, characterized in that, When the first spoiler (2) and the second spoiler (3) are unfolded to be parallel to the spoiler plate (1), the first protrusion (25) and the groove wall of the second groove (34) are spaced apart, and the second protrusion (35) and the groove wall of the first groove (24) are spaced apart.

6. The aerodynamic component according to claim 3, characterized in that, Along the length of the spoiler (1), the free ends of the first spoiler (2) corresponding to the same spoiler hole (11) are spaced apart from the free ends of the second spoiler (3).

7. The aerodynamic component according to claim 1, characterized in that, Each of the first hole walls (111) is connected to a third baffle plate (7) which is set at an angle to the baffle plate (1). The third baffle plate (7) and the first baffle plate (2) are arranged side by side in the width direction of the baffle plate (1) and the second baffle plate (3) is arranged opposite to the second baffle plate (3) in the length direction of the baffle plate (1). The free ends of the first baffle plate (2) and the third baffle plate (7) connected to the same first hole wall (111) are located on opposite sides of the baffle plate (1). And / or, each of the second hole walls (112) is connected to a fourth spoiler (8) which is set at an angle to the spoiler (1). The fourth spoiler (8) and the second spoiler (3) are arranged side by side in the width direction of the spoiler (1) and are directly opposite to the first spoiler (2) in the length direction of the spoiler (1). The free ends of the second spoiler (3) and the fourth spoiler (8) connected to the same second hole wall (112) are located on opposite sides of the spoiler (1).

8. The spoiler according to any one of claims 1-7, characterized in that, The free end of the first baffle (2) has a first mating side (21), and the free end of the second baffle (3) has a second mating side (31). Both the first mating side (21) and the second mating side (31) are adapted to the shape of the inner wall of the heat exchange tube (200). And / or, the disturbance orifice (11) has two third hole walls (113) that are opposite to and spaced apart in the width direction of the disturbance member, and in the width direction of the disturbance plate (1), the first disturbance plate (2) and the second disturbance plate (3) are spaced apart from the third hole wall (113) on the corresponding side to form a disturbance gap (6).

9. A heat exchange device, comprising heat exchange tubes (200), characterized in that, It also includes a flow-dispersing element as described in any one of claims 1-8, wherein the flow-dispersing element is inserted into the heat exchange tube (200).

10. The heat exchange device according to claim 9, characterized in that, The free end of the first baffle (2) has a first mating side (21), and the free end of the second baffle (3) has a second mating side (31). The distance between the first mating side (21) and / or the second mating side (31) and the inner wall of the heat exchange tube (200) is less than 2 mm.

11. A gas-fired hot water device, characterized in that, Includes the heat exchange device as described in claim 9 or 10.

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