Rectifying device and water heater

Abstract

The utility model relates to a rectifying device and a water heater, the rectifying device comprises a shell and an adjusting mechanism, the shell is provided with a guide part, and the guide part is used for guiding the movement direction of airflow; the adjusting mechanism is arranged on the shell and used for adjusting the installation angle of the shell relative to the external equipment. The rectifying device can be arranged on external equipment (such as a water heater) where airflow is generated or passes through, the guiding part can guide the airflow direction of the external equipment, the adjusting mechanism can adjust the installation angle of the shell on the external equipment, and when the airflow direction of the external equipment is changed, the shell can be installed on the shell through the adjusting mechanism. The rectifying device can adapt to guide of different airflow directions to generate airflow vortexes, impact on an airflow dead zone is formed, the undesirable phenomenon of the airflow dead zone of external equipment due to airflow blocking is prevented, the airflow field of the external equipment is effectively improved, and the air inlet and exhaust efficiency of the external equipment (such as a water heater) is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to a rectifier and a water heater. Background Art

[0002] During the use of heat exchange equipment such as gas water heaters, the burner supplies gas into the combustion chamber to burn into high-temperature flue gas. The high-temperature flue gas flows into the heat exchanger to exchange heat with the heat exchange tubes and heat exchange fins of the heat exchange components. After the heat exchange is completed, the high-temperature flue gas is discharged through the smoke hood.

[0003] At present, the combustion chamber and smoke hood of gas water heaters are mostly sheet metal parts connected by threads. In order to simplify the processing and molding method and reduce the manufacturing cost, the connection between the combustion chamber and the smoke hood is usually a right angle or an obtuse angle. However, a dead zone of airflow is often formed in the connection area between the combustion chamber and the smoke hood, which deteriorates the flow field. The combustion conditions in the combustion chamber change, and the direction of the flue gas flow is prone to change. The turbulent airflow direction will aggravate the deterioration of the flow field, thereby hindering the airflow pressurization capacity, seriously affecting the intake and exhaust efficiency of the water heater. Summary of the invention

[0004] Based on this, it is necessary to provide a rectifier and a water heater to address the problem of poor air intake and exhaust efficiency of the water heater.

[0005] A rectifying device, comprising:

[0006] a housing, the housing having a guide portion, the guide portion being used to guide a moving direction of an airflow; and

[0007] An adjustment mechanism is provided on the housing and is used to adjust an installation angle of the housing relative to an external device.

[0008] The above-mentioned rectifying device can be arranged on external equipment (such as water heater, etc.) where airflow is generated or passed. The guiding part can guide the airflow direction of the external equipment, and the adjusting mechanism can adjust the installation angle of the shell to the external equipment. When the airflow direction of the external equipment changes, the rectifying device can adapt to the guidance of different airflow directions and generate airflow vortices, thereby impacting the airflow dead zone, preventing the external equipment from having an undesirable phenomenon of airflow dead zone due to airflow obstruction, effectively improving the airflow field of the external equipment, and improving the intake and exhaust efficiency of the external equipment (such as water heater).

[0009] In one embodiment, the housing includes a bottom surface and a side surface vertically connected to the bottom surface, and the guide portion is disposed outside the bottom surface and the side surface, and is connected to the bottom surface and the side surface to enclose and form the housing. In this way, the rectifying device can be connected to an external device through the bottom surface, and the bottom surface and the external device are tightly fitted, which can prevent the existence of a gap between the rectifying device and the external device to increase the flow resistance of the airflow.

[0010] In one embodiment, the guide portion includes a first curved surface, a second curved surface, and a third curved surface, wherein the first curved surface and the second curved surface are symmetrically arranged on both sides of the shell, and are both connected to the bottom surface and the side surface, and both sides of the third curved surface are respectively connected to the first curved surface and the second curved surface on one side away from the bottom surface. In this way, the first curved surface, the second curved surface, and the third curved surface are all curved surface structures, which are conducive to the flow guidance of the airflow, so as to form a gas vortex to impact the airflow dead zone in the external device, and effectively improve the airflow field of the external device.

[0011] In one embodiment, the guide portion further comprises a first end and a second end which are arranged opposite to each other, the first end is in contact with the bottom surface, and the second end is connected to the edge of the side surface. In this way, the two ends of the guide portion are arranged at different heights, and the airflow can flow smoothly to the guide portion through the first end, thereby reducing the resistance of the airflow in the process of passing through the rectifying device, which is beneficial for the rectifying device to guide the flow of the airflow.

[0012] In one embodiment, the first curved surface and the second curved surface are both concave toward the inner side of the shell, the third curved surface is convex toward the outer side of the shell, and the outer contour of the first end is a flat curved surface. In this way, the outer contour of the shell is streamlined as a whole, and the airflow flows smoothly on the surface of the rectifier, further reducing the flow resistance of the airflow on the shell surface.

[0013] In one embodiment, the adjustment mechanism includes a base and a sleeve rotatably mounted on the outside of the base, the base is used to connect the external device, and a plurality of positioning holes are arranged at intervals along the circumferential direction of the base, the sleeve is connected to the housing, and is provided with an elastic protrusion that cooperates with any of the positioning holes. In this way, the installation angle of the rectifier device on the external device can be adjusted by rotating the sleeve relative to the base, and the elastic protrusion cooperates with any of the positioning holes to fix the rectifier device to the external device at a preset angle to adapt to the guidance of different airflow directions.

[0014] In one embodiment, the rectifier further includes a magnetic member, which is disposed on the housing and is used to adsorb the housing to the external device. In this way, the rectifier is adsorbed to the external device by the magnetic member, which simplifies the installation process between the rectifier and the external device and facilitates the subsequent replacement and maintenance of the rectifier.

[0015] A water heater, comprising:

[0016] Combustion chamber;

[0017] a smoke collecting hood connected to one side of the combustion chamber; and

[0018] The rectifying device as described in any one of the above technical solutions is arranged on the inner surface of the smoke collecting hood and is arranged close to the upper end of the combustion chamber;

[0019] And / or; the first end of the rectifying device is arranged toward the inner wall of the combustion chamber.

[0020] The above-mentioned water heater has a rectifying device arranged on the inner surface of the smoke hood, and the rectifying device is arranged close to the upper end of the combustion chamber. The rectifying device can guide the direction of the smoke airflow flowing from the combustion chamber to the smoke hood to generate an airflow vortex, thereby impacting the dead zone of airflow in the combustion chamber, preventing the undesirable phenomenon of dead zone of airflow in the combustion chamber due to obstruction of the smoke airflow, effectively improving the flow field of the smoke airflow in the connection area between the combustion chamber and the smoke hood, and improving the intake and exhaust efficiency of the water heater.

[0021] In one embodiment, there are multiple rectifying devices, and there is an angle α between two adjacent rectifying devices, and α is less than 60°;

[0022] And / or, two adjacent rectifying devices are symmetrically arranged along the midline of the center line connecting the two. In this way, multiple rectifying devices cooperate to guide the flow direction of the airflow from the combustion chamber to the smoke hood, expand the airflow field improvement area in the connection area between the combustion chamber and the smoke hood, and can adjust the size and direction of the airflow vortex.

[0023] In one embodiment, the distance between the orthographic projection of the end of the rectifying device close to the combustion chamber on the surface perpendicular to the side wall of the combustion chamber and the side wall of the combustion chamber is L1, and the distance between the orthographic projection of the end of the smoke hood away from the combustion chamber on the surface perpendicular to the side wall of the combustion chamber and the side wall of the combustion chamber is L2, wherein: L1 < 1 / 2L2. In this way, it can be ensured that the rectifying device is arranged in the connection area of ​​the smoke hood close to the combustion chamber, which can prevent the smoke flow from the combustion chamber to the smoke hood from being blocked and causing the undesirable phenomenon of airflow dead zone, effectively improve the flow field of the smoke flow in the connection area between the combustion chamber and the smoke hood, and improve the intake and exhaust efficiency of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of the structure of an external device provided by the prior art.

[0025] FIG. 2 is a schematic diagram of the structure of a rectifier provided in some embodiments.

[0026] FIG. 3 is a schematic structural diagram of a rectifier provided in some embodiments from another perspective.

[0027] FIG. 4 is a side view of a rectifying device provided in some embodiments.

[0028] FIG. 5 is a top view of a rectifying device provided in some embodiments.

[0029] FIG. 6 is a cross-sectional view taken along the line AA in FIG. 5 .

[0030] FIG. 7 is a schematic diagram of the structure of a water heater provided in some embodiments.

[0031] FIG. 8 is a schematic diagram of the structure of a water heater provided in another embodiment.

[0032] FIG. 9 is a front view of a water heater provided in another embodiment.

[0033] Reference numerals:

[0034] 100. Rectification device;

[0035] 110, housing; 111, guide portion; 1111, first arc surface; 1112, second arc surface; 1113, third arc surface; 1114, first end; 1115, second end; 112, bottom surface; 113, side surface; 114, accommodating cavity; 120, adjustment mechanism; 121, base; 1211, positioning hole; 1212, first annular groove; 1213, second annular groove; 122, sleeve; 1221, elastic protrusion; 1222, clamping portion; 1223, mounting groove; 130, magnetic member;

[0036] 200, external equipment;

[0037] 300. Water heater; 310. Combustion chamber; 320. Smoke hood. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0044] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0045] Conventionally, as shown in FIG. 1 , for an external device 200 (such as a water heater 300) in which airflow is generated or passes, during the flow of air in the external device 200, an airflow dead zone (see the S area shown in FIG. 1 ) is easily generated inside the external device 200 due to airflow obstruction, especially at the connection or corners of the components of the external device 200, which seriously affects the air intake and exhaust efficiency of the external device 200.

[0046] In view of the above problems, referring to FIG. 2 and FIG. 3 , the present application provides a rectifying device 100, which includes a housing 110 and an adjusting mechanism 120. The rectifying device 100 is disposed on an external device 200 (such as a water heater 300) where airflow is generated or passed. For example, the rectifying device 100 can be disposed in an area of ​​the external device 200 where airflow dead zones are easily generated, and the rectifying device 100 can guide the airflow flowing inside the external device 200.

[0047] The shell 110 has a guide portion 111, which is used to guide the movement direction of the airflow, thereby reducing the flow resistance of the airflow in the external device 200, and causing the airflow to generate an airflow vortex at the position of the guide portion 111, thereby impacting the airflow dead zone, thereby preventing the external device 200 from having an undesirable phenomenon of an airflow dead zone due to airflow obstruction, effectively improving the airflow field of the external device 200, and improving the air intake and exhaust efficiency of the external device 200 (such as the water heater 300).

[0048] The adjustment mechanism 120 is disposed on the housing 110 by welding, clamping, etc., so as to connect the adjustment mechanism 120 to the housing 110. The adjustment mechanism 120 is used to adjust the installation angle of the housing 110 relative to the external device 200. Exemplarily, when the airflow direction in the external device 200 changes, the installation angle of the housing 110 on the external device 200 can be adjusted by the adjustment mechanism 120 to adapt to the guidance of different airflow directions to generate airflow vortices, impact the airflow dead zone, and effectively improve the airflow flow field of the external device 200.

[0049] In one embodiment, referring to FIGS. 1 to 3 , the housing 110 includes a bottom surface 112 and a side surface 113, and the side surface 113 is vertically connected to the bottom surface 112, that is, the angle between the bottom surface 112 and the side surface 113 is 90°, and the bottom surface 112 can be attached to the external device 200, and the rectifying device 100 can be connected to the external device 200 through the bottom surface 112. The guide portion 111 is covered outside the bottom surface 112 and the side surface 113, and the guide portion 111 is connected to the bottom surface 112 and the side surface 113 to form the housing 110.

[0050] The above-mentioned rectifying device 100 is connected to the external device 200 through the bottom surface 112, and the bottom surface 112 and the external device 200 are tightly fitted, that is, when the rectifying device 100 is connected to the external device 200, the rectifying device 100 and the shell 110 are tightly fitted, which can prevent the existence of a gap between the rectifying device 100 and the external device 200 and increase the flow resistance of the airflow.

[0051] Specifically, referring to FIG. 4 , the guide portion 111 includes a first curved surface 1111, a second curved surface 1112, and a third curved surface 1113. The first curved surface 1111 and the second curved surface 1112 are symmetrically arranged on both sides of the housing 110. Taking the perspective of FIG. 4 as an example, the first curved surface 1111 is arranged on the left side of the housing 110, and the second curved surface 1112 is arranged on the right side of the housing 110. In addition, the first curved surface 1111 is connected to the bottom surface 112 and the side surface 113, the second curved surface 1112 is also connected to the bottom surface 112 and the side surface 113, and the two sides of the third curved surface 1113 are respectively connected to the first curved surface 1111 and the second curved surface 1112 on the side away from the bottom surface 112. Preferably, the first curved surface 1111, the second curved surface 1112, the third curved surface 1113, the bottom surface 112 and the side surface 113 are integrally formed by extrusion, injection molding, etc. to simplify the molding process of the shell 110 and ensure that the connection between the various surfaces of the shell 110 is smooth and there are no defects such as gaps and cracks at the connection between the various surfaces of the shell 110, thereby reducing the flow resistance of the airflow during the flow along the surface of the shell 110.

[0052] In the above-mentioned rectifying device 100, the first curved surface 1111, the second curved surface 1112 and the third curved surface 1113 are all curved surface structures, so that the surface of the shell 110 is streamlined, which can reduce the flow resistance of the airflow during the flow on the surface of the shell 110, and is beneficial to the flow guidance of the airflow, so as to form a gas vortex on the surface of the guide part 111 to impact the airflow dead zone in the external device 200, thereby effectively improving the airflow field of the external device 200.

[0053] Further, referring to FIG. 5 and FIG. 6 , the guide portion 111 further includes a first end 1114 and a second end 1115 which are arranged opposite to each other. Taking FIG. 6 as an example, the first end 1114 is located on the left side of the guide portion 111, and the second end 1115 is located on the right side of the guide portion 111, such as the first end 1114 is located at the front edge of the guide portion 111, and the second end 1115 is located at the rear edge of the guide portion 111. The first end 1114 is in contact with the bottom surface 112, and the second end 1115 is connected to the edge of the side surface 113. Preferably, the first end 1114, the second end 1115, the first curved surface 1111, the second curved surface 1112, the third curved surface 1113 and the bottom surface 112 are integrally formed by extrusion, injection molding or the like, so as to simplify the molding process of the housing 110, and ensure that the connection between the surfaces of the housing 110 is smooth, and there are no defects such as gaps and slits at the connection between the surfaces of the housing 110, thereby reducing the flow resistance of the airflow in the process of flowing along the surface of the housing 110.

[0054] The above-mentioned rectifying device 100 can form airflow vortices at the positions of the first arc surface 1111, the second arc surface 1112 and the second end 1115, and the two ends of the guide part 111 are set to different heights, that is, when the rectifying device 100 is connected to the external device 200, the rectifying device 100 shows a trend of gradually rising from the first end 1114 toward the second end 1115, and the airflow in the external device 200 can flow smoothly to the guide part 111 through the first end 1114, thereby reducing the resistance of the airflow in the process of passing through the rectifying device 100, which is beneficial to the rectifying device 100 for guiding the flow of the airflow, so as to form a gas vortex on the surface of the guide part 111 to impact the airflow dead zone in the external device 200, thereby effectively improving the airflow field of the external device 200.

[0055] In this embodiment, referring to FIGS. 2 to 4 , the first curved surface 1111 and the second curved surface 1112 are both concave toward the inside of the housing 110, the third curved surface 1113 is convex toward the outside of the housing 110, and the outer contour of the first end 1114 is a flat curved surface. In the above-mentioned rectifying device 100, the first curved surface 1111 and the second curved surface 1112 are set as inner concave curved surfaces, the third curved surface 1113 is set as an outer convex curved surface, and the outer contour of the first end 1114 is a flat curved surface, which is conducive to the molding of the housing 110, and the outer contour of the housing 110 is streamlined as a whole, the airflow flows smoothly on the surface of the rectifying device 100, and the flow resistance of the airflow on the surface of the housing 110 is further reduced.

[0056] In order to adjust the installation angle of the housing 110 on the external device 200, in one embodiment, referring to FIG. 2, FIG. 3 and FIG. 6, the adjustment mechanism 120 includes a base 121 and a sleeve 122, and the sleeve 122 is rotatably sleeved on the outside of the base 121. For example, the sleeve 122 is provided with a mounting groove 1223, and the base 121 is accommodated inside the sleeve 122 through the mounting groove 1223, and the sleeve 122 can rotate relative to the base 121. Among them, the base 121 is used to connect the external device 200, and the adjustment mechanism 120 is fixed to the external device 200 through the base 121, and a plurality of positioning holes 1211 are arranged at intervals in the circumferential direction of the base 121. For example, in this embodiment, the base 121 is a cylindrical structure, and ten positioning holes 1211 are arranged at intervals along the circumferential direction of the base 121. The sleeve 122 is connected to the shell 110 by welding, screwing, etc. to achieve the connection between the shell 110 and the adjustment mechanism 120. If a receiving cavity 114 is formed inside the shell 110, the sleeve 122 and the base 121 can be accommodated in the receiving cavity 114 to embed the adjustment mechanism 120 inside the shell 110, so as to prevent the adjustment mechanism 120 from protruding to the outside of the shell 100, so that the shell 110 can be attached to the external device 200, and the molding material of the shell 110 can be reduced, thereby saving the manufacturing cost of the rectifier device 100. The sleeve 122 is provided with an elastic protrusion 1221 that cooperates with any positioning hole 1211. When the sleeve 122 is acted on by screwing, pushing, pulling, etc., the sleeve 122 rotates relative to the base 121, and the installation angle of the rectifier device 100 set externally can be adjusted. When the elastic protrusion 1221 cooperates with any positioning hole 1211, the rectifier device 100 can be fixed to the external device 200 at a preset angle to adapt to the guidance of different airflow directions.

[0057] Specifically, referring to Figures 2, 3 and 6, the base 121 is provided with a first annular groove 1212 along the circumferential direction, and a plurality of positioning holes 1211 are arranged at intervals at the position where the first annular groove 1212 is provided on the base 121, that is, the centers of the plurality of positioning holes 1211 are all located on the central axis of the first annular groove 1212. The first annular groove 1212 opens on the surface of the base 121 and extends toward the inside of the base 121, and the opening width of the first annular groove 1212 is smaller than the diameter of the positioning hole 1211. When the sleeve 122 rotates relative to the base 121, the first annular groove 1212 can guide and limit the rotation path of the elastic protrusion 1221, and when the elastic protrusion 1221 switches from one of the positioning holes 1211 to another positioning hole 1211, the elastic protrusion 1221 can abut against the bottom of the first annular groove 1212 to limit the position of the sleeve 122 and prevent the sleeve 122 from tilting and misaligning during the sliding fit between the positioning holes 1211.

[0058] Further, referring to Figures 2, 3 and 6, the sleeve 122 has a clamping portion 1222, and a second annular groove 1213 is opened in the circumferential direction of the base 121, the second annular groove 1213 is open on the surface of the base 121, and the clamping portion 1222 is accommodated in the second annular groove 1213. Through the mutual cooperation between the clamping portion 1222 and the second annular groove 1213, the sleeve 122 can be prevented from loosening during the rotation of the base 121, and the second annular groove 1213 can guide and limit the rotation of the sleeve 122.

[0059] In order to simplify the installation process between the rectifier 100 and the external device 200, in one embodiment, referring to FIG. 2, FIG. 3 and FIG. 6, the rectifier 100 further includes a magnetic member 130, and the magnetic member 130 is used to adsorb the housing 110 to the external device 200, so as to realize a detachable connection between the rectifier 100 and the external device 200, so as to simplify the installation process between the rectifier 100 and the external device 200, and facilitate the subsequent replacement and maintenance of the rectifier 100. As in the present embodiment, a receiving chamber 114 is formed inside the housing 110, the sleeve 122 is a stepped shaft, and the central axis of the sleeve 112 is located on the side close to the second end 1115, so as to effectively overcome the disturbance caused by the airflow vortex formed at the second end 1115. Among them, the sleeve 122 has a large end head and a small end tail, the small end tail can be connected to the shell 110 by welding, clamping, etc. to achieve the connection between the adjustment mechanism 120 and the shell 110, and the large end head is provided with a mounting groove 1223, and the magnetic part 130 can be embedded in the mounting groove 1223 to achieve the installation and fixation of the magnetic part 130.

[0060] Among them, in this embodiment, the magnetic part 130 can be a magnet formed by atoms such as iron, cobalt, and nickel, and the external device 200 has a magnetic adsorption property. For example, the external device 200 is made of magnetic metals such as iron, cobalt, and nickel. The shell 110 can be adsorbed to the external device 200 through the magnetic part 130 to achieve a detachable connection between the rectifier device 100 and the external device 200.

[0061] In addition, referring to FIGS. 7 to 9, the present application further provides a water heater 300, which includes a combustion chamber 310, a smoke collecting hood 320, and a rectifying device 100 as described in the above technical solution, wherein the smoke collecting hood 320 is connected to one side of the combustion chamber 310. The combustion chamber 310 is used for gas to enter and burn the gas into high-temperature flue gas, which flows into the heat exchanger and exchanges heat with the heat exchange tubes and heat exchange fins of the heat exchange assembly. After the heat exchange is completed, the high-temperature flue gas is discharged through the smoke collecting hood 320. Usually, in order to simplify the processing and forming method of the water heater 300, the connection between the combustion chamber 310 and the smoke hood 320 is usually a right angle or an obtuse angle, that is, the angle between the combustion chamber 310 and the smoke hood 320 is 90°~180°. When the flue gas flows from the combustion chamber 310 to the smoke hood 320, the flue gas flow is prone to form an airflow dead zone in the connection area between the combustion chamber 310 and the smoke hood 320, which deteriorates the internal flow field of the combustion chamber 310 and seriously affects the intake and exhaust efficiency of the water heater 300.

[0062] In the above-mentioned water heater 300, the rectifying device 100 is arranged on the inner surface of the smoke hood 320, and the rectifying device 100 is arranged close to the upper end of the combustion chamber 310, that is, the rectifying device 100 is arranged in the connection area between the combustion chamber 310 and the smoke hood 320. The rectifying device 100 can guide the direction of the flue gas flow from the combustion chamber 310 to the smoke hood 320 to generate an airflow vortex, which impacts the dead zone of the airflow in the combustion chamber 310, prevents the undesirable phenomenon of dead zone of airflow in the combustion chamber 310 due to the obstruction of the flue gas flow, effectively improves the flow field of the flue gas flow in the connection area between the combustion chamber 310 and the smoke hood 320, and improves the intake and exhaust efficiency of the water heater 300.

[0063] Preferably, the first end 1114 of the rectifying device 100 is arranged toward the inner wall of the combustion chamber 310, so that the smoke airflow generated by the combustion chamber 310 can be introduced into the smoke hood 320 through the first end 1114 for discharge. The smoke airflow generated by the combustion chamber 310 can flow smoothly to the smoke hood 320 through the rectifying device 100, thereby reducing the resistance of the smoke airflow through the rectifying device 100, facilitating the rectifying device 100 to guide the flow from the combustion chamber 310 to the smoke hood 320, and further improving the airflow field in the connection area between the combustion chamber 310 and the smoke hood 320.

[0064] In one embodiment, referring to Figures 7 to 9, when the rectifying device 100 is disposed on the inner surface of the smoke hood 320, the distance between the orthographic projection of the end of the rectifying device 100 close to the combustion chamber 310 on the surface of the vertical side wall of the combustion chamber 310 and the side wall of the combustion chamber 310 is L1, and the distance between the orthographic projection of the end of the smoke hood 320 away from the combustion chamber 310 on the surface of the vertical side wall of the combustion chamber 310 and the side wall of the combustion chamber 310 is L2, wherein L1 < 1 / 2L2, so that the rectifying device 100 is disposed in the connection area of ​​the smoke hood 320 close to the combustion chamber 310, which can prevent the smoke flow from the combustion chamber 310 to the smoke hood 320 from being blocked and causing an undesirable phenomenon of airflow dead zone, effectively improve the smoke flow field in the connection area between the combustion chamber 310 and the smoke hood 320, and improve the intake and exhaust efficiency of the water heater 300.

[0065] Further, referring to FIG8 and FIG9, there are multiple rectifying devices 100, and there is an angle α between two adjacent rectifying devices 100, α<60°; and / or, two adjacent rectifying devices 100 are symmetrically arranged along the midline of the center line connecting the two. In one embodiment, α=0, referring to FIG7, two adjacent rectifying devices 100 are arranged in parallel along the flow direction of the flue gas flow, so that the flue gas flow inside the combustion chamber 310 flows in an orderly manner to the smoke hood 320 along the arrow direction shown in FIG7, thereby improving the flow field of the flue gas flow in the connection area between the combustion chamber 310 and the smoke hood 320. In another embodiment, 0<α<60°, referring to Figures 8 and 9, two adjacent rectifying devices 100 are arranged obliquely along the flow direction of the flue gas flow, that is, the rectifying device 100 and the flow direction of the flue gas flow form an acute angle with each other, and the two adjacent rectifying devices 100 are symmetrical to each other along the center line connecting the centers of the two, so that the flue gas flow inside the combustion chamber 310 flows in an orderly manner to the smoke hood 320 along the direction of the arrows shown in Figures 8 and 9, thereby improving the flue gas flow field in the connection area between the combustion chamber 310 and the smoke hood 320.

[0066] In the water heater 300, the plurality of rectifying devices 100 cooperate to guide the flow direction of the airflow from the combustion chamber 310 to the smoke hood 320, thereby expanding the airflow field improvement area in the connection area between the combustion chamber 310 and the smoke hood 320. Furthermore, when the flue gas flow in the combustion chamber 310 flows in the connection area between the combustion chamber 310 and the smoke hood 320, the flue gas flow can flow between two adjacent rectifying devices 100, and by adjusting the distance and angle between the two adjacent rectifying devices 100, the size and direction of the airflow vortex can be adjusted.

[0067] Among them, the angle of α is not limited to the 0~60° provided above, and can also be other angles. The specific angle size of α is not limited in this application, and can be adaptively set according to the size and direction of the airflow vortex to be formed.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A rectifying device, It is characterized in that The rectifying device (100) comprises: A housing (110), wherein the housing (110) has a guide portion (111), and the guide portion (111) is used to guide the moving direction of an airflow; and An adjustment mechanism (120), wherein the adjustment mechanism (120) is arranged on the housing (110) and is used to adjust the installation angle of the housing (110) relative to the external device (200).

2. The rectifying device according to claim 1, It is characterized in that The shell (110) comprises a bottom surface (112) and a side surface (113) vertically connected to the bottom surface (112); the guide portion (111) is arranged outside the bottom surface (112) and the side surface (113), and is connected to the bottom surface (112) and the side surface (113) to surround and form the shell (110).

3. The rectifying device according to claim 2, It is characterized in that The guide portion (111) comprises a first curved surface (1111), a second curved surface (1112) and a third curved surface (1113); the first curved surface (1111) and the second curved surface (1112) are symmetrically arranged on both sides of the shell (110), and are both connected to the bottom surface (112) and the side surface (113); and both sides of the third curved surface (1113) are respectively connected to the first curved surface (1111) and the second curved surface (1112) on one side away from the bottom surface (112).

4. The rectifying device according to claim 3, It is characterized in that The guide portion (111) further comprises a first end (1114) and a second end (1115) which are arranged opposite to each other, wherein the first end (1114) is in contact with the bottom surface (112), and the second end (1115) is connected to the edge of the side surface (113).

5. The rectifying device according to claim 4, It is characterized in that The first curved surface (1111) and the second curved surface (1112) are both recessed toward the inner side of the shell (110), the third curved surface (1113) is protruding toward the outer side of the shell (110), and the outer contour of the first end (1114) is a flat curved surface.

6. The rectifying device according to claim 1, It is characterized in that The adjustment mechanism (120) comprises a base (121) and a sleeve (122) rotatably mounted on the outside of the base (121); the base (121) is used to connect the external device (200), and a plurality of positioning holes (1211) are arranged at intervals along the circumferential direction of the base (121); the sleeve (122) is connected to the housing (110), and is provided with an elastic protrusion (1221) that cooperates with any of the positioning holes (1211).

7. The rectifying device according to claim 1, It is characterized in that The rectifying device (100) further comprises a magnetic member (130), wherein the magnetic member (130) is arranged on the housing (110) and is used for adsorbing the housing (110) to the external device (200).

8. A water heater, It is characterized in that The water heater (300) comprises: Combustion chamber (310); a smoke collecting hood (320), the smoke collecting hood (320) being connected to one side of the combustion chamber (310); and The rectifying device (100) according to any one of claims 1 to 7, wherein the rectifying device (100) is arranged on the inner surface of the smoke collecting hood (320) and is arranged close to the upper end of the combustion chamber (310); And / or; the first end (1114) of the rectifying device (100) is arranged toward the inner wall of the combustion chamber (310).

9. The water heater according to claim 8, It is characterized in that There are a plurality of rectifying devices (100), and an angle α exists between two adjacent rectifying devices (100), and α is less than 60°; And / or, two adjacent rectifying devices (100) are symmetrically arranged along a midline connecting the centers of the two devices.

10. The water heater according to claim 8, It is characterized in that The distance between the orthographic projection of the end of the rectifying device (100) on the side close to the combustion chamber (310) on a surface perpendicular to the side wall of the combustion chamber (310) and the side wall of the combustion chamber (310) is L1, and the distance between the orthographic projection of the end of the smoke collecting hood (320) on the side away from the combustion chamber (310) on a surface perpendicular to the side wall of the combustion chamber (310) and the side wall of the combustion chamber (310) is L2, wherein: L1<1 / 2L2.

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