Turbulent flow structure for heat exchange tube, heat exchanger and gas water heater

Abstract

The utility model discloses a turbulent flow structure for a heat exchange tube, a heat exchanger and a gas water heater, the turbulent flow structure comprises: a main body part, the main body part is provided with a plurality of turbulent flow holes at intervals along the length direction, and the two end parts of the main body part are respectively a water inlet end and a water outlet end; the spoilers are connected with the main body part, the spoilers correspond to the spoiler holes, and the joints of the spoilers and the main body part are located on the sides, close to the water inlet end, of the corresponding spoiler holes; wherein in every two adjacent spoilers, one spoiler extends in the direction away from the first surface of the main body part in the water flow direction, the other spoiler extends in the direction away from the second surface of the main body part in the water flow direction, and the first surface and the second surface are arranged in a back-to-back mode. Through the blocking effect of the spoilers, the laminar flow state of water flow is broken, the uniformity of water flow is accelerated, and the heat exchange efficiency is improved; the turbulent flow structure is simple in structure, convenient to form and machine and beneficial to reducing production cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of turbulence devices, and particularly relates to a turbulence structure for heat exchange tubes, a heat exchanger, and a gas water heater. Background Technology

[0002] A gas water heater, also known as a gas-fired water heater boiler, is a gas appliance that uses gas as fuel and heats water by combustion, transferring heat to cold water flowing through a heat exchanger to produce hot water. During operation, as water flows through the heat exchange tubes, the inner wall of the tubes directly contacts the water, transferring heat. In this process, hardness ions in the water (such as calcium and magnesium ions) are prone to chemical reactions at elevated temperatures, forming scale that adheres to the bottom of the heat exchange tube's inner wall. Because the scale buildup prevents the timely transfer of heat from the high-temperature flue gas to the water, the heat exchange tubes experience localized overheating.

[0003] A Chinese patent with publication number CN109059294A discloses a baffle plate for a gas water heater. The gas water heater includes a straight pipe through which water to be heated flows, and the baffle plate is disposed inside the straight pipe. The baffle plate includes a bottom plate and a baffle structure protruding to both sides of the bottom plate, and a spiral water channel is formed between the baffle structure and the inner wall of the straight pipe.

[0004] The aforementioned baffles form a spiral water path with the inner wall of the straight pipe, which can improve heat exchange efficiency and prevent scaling. However, the structure of the baffles is complex and the production cost is high. Therefore, the technical problem to be solved by this utility model is how to design a baffle device that can improve the heat exchange efficiency between water and high-temperature flue gas in the heat exchange tube, reduce scale formation, and has a simple structure, is easy to produce, and reduces costs. Utility Model Content

[0005] This utility model provides a turbulence structure for heat exchange tubes, a heat exchanger, and a gas water heater, which improves the heat exchange efficiency between water and high-temperature flue gas in the heat exchange tubes, reduces scale formation, and lowers production costs.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In the first aspect, this utility model provides a turbulence-disrupting structure for a heat exchanger tube, comprising:

[0008] The main body has multiple turbulence holes spaced apart along its length, with the water inlet and water outlet at its two ends, respectively.

[0009] A baffle plate is connected to the main body, the baffle plate corresponds to the baffle hole, and the connection between the baffle plate and the main body is located on the side of the corresponding baffle hole near the water inlet end;

[0010] Among them, of the two adjacent baffles, one baffle extends in the direction of water flow toward a first surface away from the main body, and the other baffle extends in the direction of water flow toward a second surface away from the main body, with the first surface and the second surface arranged in opposite directions.

[0011] In some embodiments of this application, the spoiler is a flange formed by punching holes in the main body at the spoiler hole, or the spoiler is connected to the main body by welding.

[0012] By setting the spoiler as a flange formed by punching holes in the main body, the processing flow is simplified, and processing time and cost are reduced; by connecting the spoiler to the main body by welding, the connection strength is high and it is not easy to deform.

[0013] In some embodiments of this application, the spoiler and the connecting lines of the main body are arranged parallel to each other.

[0014] By arranging the baffles parallel to the straight lines connecting them to the main body, the baffles achieve high regularity, making them easier to manufacture. At the same time, this increases the fluidity of the water flow on both sides of the main body, improving the heat exchange effect.

[0015] In some embodiments of this application, turbulence holes are also formed on the main body, and the turbulence holes and the disturbance holes are arranged alternately.

[0016] By setting turbulence holes on the main body and arranging them alternately, the turbulence effect of the water flow can be improved, the water exchange between the two sides of the main body can be enhanced, and the water flow resistance can be reduced, thus improving the heat exchange effect.

[0017] In some embodiments of this application, the turbulence holes are rectangular and arranged obliquely on the main body;

[0018] Among them, two adjacent baffles form a group of flow units. In the same group of flow units, water flows from the side of the main body away from the baffle into the baffle holes and the turbulence holes, and then flows into the next group of flow units to form a spiral waterway.

[0019] By arranging the turbulence holes at an angle on the main body and making the holes rectangular, the space on the main body can be fully utilized to increase the water flow rate. In the same set of flow units, the water flows from the side of the main body away from the turbulence plate into the turbulence holes and the flow holes, and then flows into the next set of flow units to form a spiral water channel, breaking the laminar flow boundary, promoting radial mixing of the water flow, and extending the mixing time, making the water flow more uniformly mixed.

[0020] In some embodiments of this application, the turbulence-disrupting structure for the heat exchange tube further includes:

[0021] A support member, one end of which is connected to the main body and the other end of which extends away from the main body, is configured to abut against the inner wall surface of the heat exchange tube.

[0022] By setting a support on the main body, when the turbulence structure is installed in the heat exchange tube, the support abuts against the inner wall of the heat exchange tube, reducing the swaying of the turbulence structure in the heat exchange tube and improving the stability and strength of the turbulence structure; at the same time, the support can also play a certain role in turbulence.

[0023] In some embodiments of this application, the support member is formed by punching holes in the main body, or the support member is connected to the main body by welding.

[0024] By forming the support component through punching holes in the main body, no excess waste is generated, which facilitates processing and manufacturing and helps save costs. The support component is connected to the main body by welding, which provides high connection strength and can withstand greater external pressure. This reduces the occurrence of deformation of the turbulence structure and helps improve the stability of the turbulence structure.

[0025] In some embodiments of this application, the water inlet and / or the water outlet are formed with protrusions, which are configured to abut against the inner wall surface of the heat exchange tube along the width direction of the main body.

[0026] By providing protrusions at the inlet and / or outlet ends, when the turbulence-inducing structure is installed in the heat exchange tube, the protrusions abut against the inner wall of the heat exchange tube along the width direction of the main body, which facilitates fixing the position of the turbulence-inducing structure in the heat exchange tube.

[0027] In a second aspect, this utility model provides a heat exchanger, comprising:

[0028] Heat exchanger tubes;

[0029] The turbulence-disrupting structure for the heat exchange tube as described in any one of the first aspect embodiments above is disposed in the heat exchange tube.

[0030] In a third aspect, this utility model provides a gas water heater, including the heat exchanger described in the second aspect embodiment above.

[0031] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The turbulence structure for the heat exchange tube includes a main body and a turbulence plate. The two ends of the main body are the inlet and outlet ends, respectively. The turbulence plate is connected to the main body and corresponds to the turbulence holes. The connection between the turbulence plate and the main body is located on the side of the corresponding turbulence hole near the inlet end. In this way, after the water flows from the inlet end of the main body, the laminar flow state of the water is broken by the physical obstruction of the turbulence plate, forcing the water to generate vortices and turbulence, thereby accelerating the uniformity of water flow. Among two adjacent turbulence plates, one turbulence plate extends in the direction away from the first surface of the main body along the direction of water flow, and the other turbulence plate extends in the direction away from the second surface of the main body along the direction of water flow. The water flow is mixed more evenly under the action of the turbulence plate and the turbulence holes, which is beneficial to improving heat exchange efficiency and reducing scaling. The turbulence structure includes a main body and a turbulence plate, with two adjacent turbulence plates located on both sides of the main body. The structure is simple, easy to form and process, and helps to reduce production costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is one of the schematic diagrams of the turbulence-disrupting structure for heat exchange tubes provided by this utility model in the heat exchange tube;

[0034] Figure 2 This is the second schematic diagram of the turbulence-disrupting structure for heat exchange tubes provided by this utility model in the heat exchange tube.

[0035] Figure 3 The third schematic diagram of the turbulence-disrupting structure for heat exchange tubes provided by this utility model in the heat exchange tube;

[0036] Figure 4 One of the schematic diagrams of the turbulence-disrupting structure for heat exchange tubes provided by this utility model;

[0037] Figure 5 for Figure 4 A magnified view of a portion of region A in the middle;

[0038] Figure 6 A partial front view of the turbulence-disrupting structure for heat exchange tubes provided by this utility model;

[0039] Figure 7 A partial bottom view of the turbulence-disrupting structure for heat exchange tubes provided by this utility model;

[0040] Figure 8 The second schematic diagram of the turbulence-disrupting structure for heat exchange tubes provided by this utility model;

[0041] Figure 9 This is a schematic diagram of the turbulence-disrupting structure for heat exchange tubes provided by this utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Main body; 11. Turbulence hole; 12. Water inlet; 13. Water outlet; 14. Turbulence hole; 15. Protrusion;

[0044] 2. Spoiler;

[0045] 3. Support components;

[0046] 4. Heat exchange tubes. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0052] A gas water heater is a type of water heater that uses gas as its primary energy source. It produces hot water by transferring the high-temperature heat generated by the combustion of gas to cold water flowing through a heat exchanger.

[0053] Gas water heaters typically include an outer casing, as well as components such as a burner, heat exchanger, fan, and shroud housed within the casing.

[0054] In this process, the gas is delivered to the burner, where it is ignited by an ignition device, so that the burner can burn the delivered gas and generate heat.

[0055] The heat exchanger is equipped with heat exchange tubes. One end of the heat exchange tubes is connected to the water supply pipe, and the other end of the heat exchange tubes is connected to a shower head or faucet.

[0056] The heat generated by the burner burning the gas is used to heat the heat exchange tubes, thereby raising the temperature of the water inside the heat exchange tubes to form hot water.

[0057] When a gas water heater is working, cold water supplied by the water supply pipe flows into the heat exchange tube, and is then heated into hot water by the heat source generated by the burner. The hot water then flows out from the shower head or faucet through the hot water valve for the user's use.

[0058] At the same time, when the gas water heater is working, the fan is powered on and running simultaneously. Under the action of the fan, the flue gas generated by the burner is discharged outdoors.

[0059] In the first aspect, combining Figures 1 to 8 As shown, this embodiment of the present disclosure provides a turbulence-disrupting structure for a heat exchange tube 4, which includes a main body 1 and a turbulence-disrupting plate 2.

[0060] The main body 1 has a long strip structure. Multiple turbulence holes 11 are provided at intervals along the length of the main body 1. The two ends of the main body 1 are the water inlet 12 and the water outlet 13, respectively. The direction from the water inlet 12 to the water outlet 13 is consistent with the direction of water flow in the heat exchange tube 4.

[0061] Specifically, the turbulence hole 11 can be strip-shaped, elliptical, semi-circular, or polygonal; there are no restrictions here.

[0062] Combination Figure 4 and Figure 5 As shown, one end of the baffle plate 2 is connected to the main body 1, and the other end of the baffle plate 2 extends away from the main body 1. The baffle plate 2 and the baffle hole 11 correspond one to one. The connection between the baffle plate 2 and the main body 1 is located on the side of the corresponding baffle hole 11 near the water inlet end 12, and two adjacent baffle plates 2 are located on both sides of the main body 1.

[0063] Among them, two adjacent baffles 2, one baffle 2 extends in the direction of water flow toward the first surface away from the main body 1, and the other baffle 2 extends in the direction of water flow toward the second surface away from the main body 1, with the first surface and the second surface arranged in opposite directions.

[0064] Specifically, the turbulence holes 11 are arranged at equal intervals on the main body 1.

[0065] Specifically, the two ends of the main body 1 are the inlet end 12 and the outlet end 13, respectively. One end of the baffle 2 is connected to the main body 1, and the other end extends away from the main body 1. The baffle 2 corresponds to the baffle hole 11. The connection between the baffle 2 and the main body 1 is located on the side of the corresponding baffle hole 11 closer to the inlet end 12. In this way, after the water flows from the inlet end 12 of the main body 1, the laminar flow state of the water is broken by the physical obstruction of the baffle 2, and the internal vortex and turbulence of the water are forced to be generated, thereby accelerating the uniformity of the water flow.

[0066] Two adjacent baffles 2, one of which extends in the direction of water flow toward the first surface away from the main body 1, and the other extends in the direction of water flow toward the second surface away from the main body 1. The water flow is mixed more evenly under the action of the baffles 2 and the baffle holes 11, which is beneficial to improving heat exchange efficiency and reducing scaling. The baffle structure includes the main body 1 and multiple baffles 2. Two adjacent baffles 2 are located on both sides of the main body 1. The structure is simple, easy to form and process, and helps to reduce production costs.

[0067] In some embodiments of this application, combined with Figure 5 As shown, the turbulence hole 11 is rectangular, and the tilt angle at the connection between the turbulence plate 2 and the main body 1 is consistent with the tilt angle of the turbulence hole 11.

[0068] In some embodiments of this application, the number of spoilers 2 and spoiler holes 11 are equal, and the spoilers 2 and spoiler holes 11 correspond one-to-one.

[0069] In some embodiments of this application, the turbulence-disrupting structure is made of stainless steel, which has good corrosion resistance, high structural strength, abundant raw material sources, relatively low cost, and is easy to process and manufacture. Of course, the turbulence-disrupting structure can also be made of other materials such as copper, and this is not a limitation.

[0070] In some embodiments of this application, combined with Figure 8 As shown, the spoilers 2 located on the same side of the main body 1 are all arranged in parallel.

[0071] Specifically, the high regularity of the baffle plate 2 makes the water flow more evenly and improves the heat exchange capacity.

[0072] In some embodiments of this application, combined with Figure 1 , Figure 5 and Figure 9 As shown in the figure, the arrows indicate the direction of water flow. The baffle plate 2 and the baffle hole 11 are arranged alternately, and the straight lines at each connection point between the baffle plate 2 and the main body 1 are all parallel.

[0073] Specifically, the straight lines at each connection point between the baffle 2 and the main body 1 are arranged parallel to each other. This makes the baffle 2 highly regular and easy to process. At the same time, it can increase the fluidity of the water flow on both sides of the main body and improve the heat exchange effect. By arranging the baffle 2 and the baffle holes 11 alternately, the water flow can form a spiral water path, which prolongs the water flow path, breaks the laminar flow boundary, promotes the radial mixing of the water flow, and prolongs the mixing time, making the water flow more uniform.

[0074] Specifically, by arranging the baffles 2 and the main body 1 in parallel on all connecting lines, the regularity of the connections between the baffles 2 and the main body 1 is high, which facilitates processing. It can also increase the number of baffles 2 on the main body 1 per unit area, thereby extending the flow path of the water and making the water flow more uniform. At the same time, water can directly enter the next baffle after exiting the previous baffle hole, and the water flow direction is consistent, which can reduce water flow resistance, increase flow velocity, increase the fluidity of water flow on both sides of the main body 1, and improve the heat exchange effect.

[0075] In some embodiments of this application, combined with Figure 6As shown, the angle between the connection between the spoiler 2 and the main body 1 and the length direction of the main body 1 is α, where 45°≤α≤70°.

[0076] Specifically, by tilting the connection between the baffle plate 2 and the main body 1 relative to the length direction of the main body 1, the resistance of the baffle plate 2 to the water flow can be reduced, which is conducive to the water flow passing smoothly through the heat exchange tube 4 for heat exchange, thereby improving the heat exchange efficiency.

[0077] When the angle between the connection between the baffle plate 2 and the main body 1 and the length direction of the main body 1 is less than 45°, the turbulence effect on the water flow is small; when the angle between the connection between the baffle plate 2 and the main body 1 and the length direction of the main body 1 is greater than 70°, the resistance to the water flow is too great.

[0078] For example, the angle between the connection between the spoiler 2 and the main body 1 and the length direction of the main body 1 is 45°, 50°, 55°, 60°, 65° or 70°.

[0079] In some embodiments of this application, combined with Figure 7 As shown, the included angle between the spoiler 2 and the main body 1 is β, where 60°≤β≤90°.

[0080] Specifically, by setting a certain angle between the baffle 2 and the main body 1, the baffle 2 reduces the flow resistance of water while breaking the laminar flow of water.

[0081] When the angle between the baffle 2 and the main body 1 is less than 60°, the baffle 2 does not disturb the water flow enough and is difficult to effectively break the laminar boundary layer at the wall of the heat exchange tube 4, resulting in uneven heat exchange and reduced overall heat exchange efficiency. When the angle between the baffle 2 and the main body 1 is greater than 90°, the baffle 2 will directly block the water flow, forming reverse turbulence, which will destroy the axial momentum of the water flow, resulting in uneven velocity distribution. Stagnant flow or backflow may occur in some areas, reducing overall heat exchange efficiency.

[0082] For example, the included angle between the spoiler 2 and the main body 1 is 60°, 65°, 70°, 75°, 80°, 85° or 90°.

[0083] In some embodiments of this application, a turbulence hole 14 is also formed on the main body 1. The turbulence hole 14 and the disturbance hole are arranged alternately, that is, the turbulence hole 14 is located between two adjacent disturbance holes 11.

[0084] Specifically, by setting turbulence holes 14 between two adjacent turbulence holes 11 on the main body 1, the turbulence holes 14 and turbulence holes 11 together can improve the turbulence effect of water flow, enhance the degree of water flow exchange on both sides of the main body 1, reduce water flow resistance, and improve heat exchange effect.

[0085] In some embodiments of this application, the turbulence hole 11 is rectangular and arranged obliquely on the main body;

[0086] Among them, two adjacent baffles 2 form a group of flow units. In the same group of flow units, water flows from the side of the main body away from the baffle 2 into the baffle hole 11 and the turbulence hole 14, and then flows into the next group of flow units to form a spiral waterway.

[0087] Specifically, by arranging the turbulence holes 11 at an angle on the main body 1 and making the turbulence holes 11 rectangular, the space on the main body 1 can be fully utilized to increase the water flow rate. In the same group of flow units, the water flows from the side of the main body away from the turbulence plate 2 into the turbulence holes 11 and the turbulence holes 14, and flows into the next group of flow units to form a spiral water path, breaking the laminar flow boundary, promoting the radial mixing of the water flow, and extending the mixing time, so that the water flow is mixed more evenly.

[0088] On the other hand, by setting the turbulence hole 14, the amount of material used can be reduced and the cost can be lowered.

[0089] Specifically, the turbulence orifice 14 can be circular, polygonal, or irregular in shape.

[0090] Specifically, there are 1 to 3 sets of turbulence holes 14 between two adjacent turbulence holes 11.

[0091] For example, there is a group of turbulence holes 14 between two adjacent turbulence holes 11, and the number of turbulence holes 14 in each group is 3.

[0092] In some embodiments of this application, the turbulence structure for the heat exchange tube 4 also includes a support member 3.

[0093] One end of the support member 3 is connected to the main body 1, and the other end of the support member 3 extends away from the main body 1. It is configured to abut against the inner wall surface of the heat exchange tube 4 along the thickness direction of the main body 1.

[0094] Specifically, by providing a support member 3 on the main body 1, when the turbulence structure is installed in the heat exchange tube 4, the support member 3 abuts against the inner wall surface of the heat exchange tube 4 along the thickness direction of the main body 1, reducing the swaying of the turbulence structure in the heat exchange tube 4, improving the stability and strength of the overall structure, and the support member 3 can also play a certain turbulence role.

[0095] In some embodiments of this application, the support member 3 is formed by punching holes in the main body 1, or the support member 3 is connected to the main body 1 by welding.

[0096] Specifically, by punching the support member 3 from the main body 1, no extra waste is generated, which facilitates processing and manufacturing and helps to save costs. The support member 3 is connected to the main body 1 by welding, which has high connection strength and can withstand greater external pressure. This reduces the occurrence of deformation of the turbulence structure and helps to improve the stability of the turbulence structure.

[0097] In some embodiments of this application, combined with Figure 3 As shown, the support member 3 is located on both sides of the main body 1 along the thickness direction of the main body 1. Of course, the support member 3 may also be provided only on one side of the main body 1.

[0098] In other embodiments, in order to improve structural stability, the main body 1 is provided with support members 3 on both sides of the spoiler 2.

[0099] In some embodiments of this application, the support is formed by punching holes in the main body, or the support is connected to the main body by welding.

[0100] Specifically, by forming the support component through punching holes in the main body, no excess waste is generated, making processing and manufacturing convenient and helping to save costs. Punching can also have a certain turbulence effect. The support component is connected to the main body by welding, which has high connection strength and can withstand greater external pressure, reducing the occurrence of deformation of the turbulence structure and helping to improve the stability of the turbulence structure.

[0101] In some embodiments, the support member 3 is a bent structure formed by punching holes in the main body 1.

[0102] In some embodiments of this application, the inlet end 12 and / or the outlet end 13 are formed with a protrusion 15, which is configured to abut against the inner wall surface of the heat exchange tube 4 along the width direction of the main body 1.

[0103] Specifically, by providing a protrusion 15 at the water inlet 12 and / or the water outlet 13, when the turbulence structure is installed in the heat exchange tube 4, the protrusion 15 abuts against the inner wall surface of the heat exchange tube 4 along the width direction of the main body 1, which facilitates fixing the position of the turbulence structure in the heat exchange tube 4.

[0104] In practical applications, in order to improve the connection strength between the turbulence structure and the heat exchange tube 4 and to prevent relative movement between the turbulence structure and the heat exchange tube 4, the protrusion 15 can be welded to the inner wall surface of the heat exchange tube 4.

[0105] In some embodiments of this application, the spoiler 2 is a flange formed by punching holes in the main body 1 at the spoiler hole 11, or the spoiler 2 is connected to the main body 1 by welding.

[0106] Specifically, by setting the spoiler 2 as a flange formed at the spoiler hole 11 of the main body 1, the processing is simplified and the processing time and cost are reduced; by connecting the spoiler 2 and the main body 1 by welding, the connection strength is high and it is not easy to deform.

[0107] In some embodiments, the spoiler 2 is fixed to the main body 1 by welding. Of course, the spoiler 2 can be welded to the edge of the corresponding spoiler hole 11, or it can be kept at a certain distance from the edge of the spoiler hole 11.

[0108] In a second aspect, embodiments of this disclosure provide a heat exchanger, combined with Figure 1 , Figure 2 and Figure 3 As shown, the heat exchanger includes a heat exchange tube 4 and a turbulence-inducing structure for the heat exchange tube 4 as described in any of the first aspect embodiments above, wherein the turbulence-inducing structure for the heat exchange tube 4 is disposed in the heat exchange tube 4.

[0109] Because it includes any of the turbulence-inducing structures for the heat exchange tube 4 as described in the first aspect embodiment above, it possesses all of its beneficial effects, which will not be elaborated further here.

[0110] In a third aspect, embodiments of this disclosure provide a gas water heater, including the heat exchanger described in the second aspect embodiment above.

[0111] Because it includes the heat exchanger as described in the second aspect embodiment above, it possesses all of its beneficial effects, which will not be elaborated further here.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0113] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A turbulence-disrupting structure for heat exchanger tubes, characterized in that, include: The main body has multiple turbulence holes spaced apart along its length, with the water inlet and water outlet at its two ends, respectively. A baffle plate is connected to the main body, the baffle plate corresponds to the baffle hole, and the connection between the baffle plate and the main body is located on the side of the corresponding baffle hole near the water inlet end; Among them, of the two adjacent baffles, one baffle extends in the direction of water flow toward a first surface away from the main body, and the other baffle extends in the direction of water flow toward a second surface away from the main body, with the first surface and the second surface arranged in opposite directions.

2. The turbulence-disrupting structure for heat exchange tubes according to claim 1, characterized in that, The spoiler is a flange formed by punching holes in the main body at the spoiler holes, or the spoiler is connected to the main body by welding.

3. The turbulence-disrupting structure for heat exchange tubes according to claim 1, characterized in that, The spoiler and the main body are arranged in parallel lines at all their connection points.

4. The turbulence-disrupting structure for heat exchange tubes according to claim 1, characterized in that, The main body also has turbulence holes, which are arranged alternately with the disturbance holes.

5. The turbulence-disrupting structure for heat exchange tubes according to claim 4, characterized in that, The turbulence holes are rectangular and arranged at an angle on the main body. Among them, two adjacent baffles form a group of flow units. In the same group of flow units, water flows from the side of the main body away from the baffle into the baffle holes and the turbulence holes, and then flows into the next group of flow units to form a spiral waterway.

6. The turbulence-disrupting structure for heat exchange tubes according to claim 1, characterized in that, The turbulence-disrupting structure for the heat exchanger tube further includes: A support member, one end of which is connected to the main body and the other end of which extends away from the main body, is configured to abut against the inner wall surface of the heat exchange tube.

7. The turbulence-disrupting structure for heat exchange tubes according to claim 6, characterized in that, The support member is formed by punching holes in the main body, or the support member is connected to the main body by welding.

8. The turbulence-disrupting structure for heat exchange tubes according to claim 1, characterized in that, The inlet and / or outlet are provided with protrusions, which are configured to abut against the inner wall of the heat exchange tube along the width of the main body.

9. A heat exchanger, characterized in that, include: Heat exchanger tubes; The turbulence-disrupting structure for a heat exchange tube as described in any one of claims 1 to 8 is disposed in the heat exchange tube.

10. A gas-fired water heater, characterized in that, Includes the heat exchanger described in claim 9 above.

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