Combustion heat exchange component and gas water heater having the same

Abstract

The present invention discloses a combustion heat exchange component and a gas water heater having the same. The combustion heat exchange component includes: a heat exchanger, the heat exchanger having a heat exchange portion, the heat exchange portion having a heat exchange medium channel, and an installation space formed in the heat exchanger; a burner, the burner is at least partially arranged in the installation space, and the burner is positioned by the heat exchange portion. According to the combustion heat exchange component of the present invention, the burner is positioned by using the heat exchange portion to position the burner, thereby realizing the positioning and installation of the burner inside the heat exchanger. At the same time, the water flow in the heat exchange portion for positioning the burner can also take away the heat generated by the combustion of the burner, preventing the burner from continuously heating the heat exchanger and causing the outlet water temperature of the combustion heat exchange component to be higher than the user's requirements. In addition, the burner is embedded in the heat exchanger, eliminating the connecting fasteners between the burner and the heat exchanger, making the structure of the combustion heat exchange component more compact, and helping to reduce the weight of the combustion heat exchange component.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a combustion heat exchange component and a gas water heater having the same. Background Art

[0002] In order to reduce the emission of CO and NOx in the exhaust gas of gas water heaters, existing water heater manufacturers generally place a catalytic module (i.e., burner) in the flue gas channel, i.e., the heat exchanger. However, the existing heat exchanger is closed on all sides, which makes it inconvenient to install the catalytic module in the heat exchanger cavity. Therefore, some manufacturers place the catalytic module between the primary heat exchanger and the secondary heat exchanger separated from each other, and then fix the catalytic module to the primary heat exchanger and the secondary heat exchanger through connecting fasteners, which will increase the weight of the gas water heater and complicate the overall structure. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present invention provides a combustion heat exchange assembly, in which a burner is integrated inside a heat exchanger.

[0004] The present invention also provides a gas water heater having the combustion and heat exchange component.

[0005] According to an embodiment of the present invention, a combustion heat exchange assembly includes: a heat exchanger, the heat exchanger having surrounding panels, a heat exchange part is arranged inside the surrounding panels, the heat exchange part has a heat exchange medium channel, and an installation space is formed in the heat exchanger; a burner, the burner is at least partially arranged in the installation space, and the burner is positioned by the heat exchange part.

[0006] According to the combustion heat exchange assembly of the embodiment of the present invention, the burner is positioned by using the heat exchange part to realize the positioning and installation of the burner inside the heat exchanger. At the same time, the water flow in the heat exchange part for positioning the burner can also take away the heat generated by the combustion of the burner, preventing the burner from continuously heating the heat exchanger and causing the water outlet temperature of the combustion heat exchange assembly to be higher than the user's use requirements. In addition, the burner is embedded in the heat exchanger, eliminating the connecting fasteners between the burner and the heat exchanger, making the structure of the combustion heat exchange assembly more compact and helping to reduce the weight of the combustion heat exchange assembly.

[0007] According to some embodiments of the present invention, the heat exchange part includes: a supporting heat exchange part, the supporting heat exchange part is located at the bottom of the installation space, the supporting heat exchange part is used to support the burner, and support the burner in the installation space.

[0008] According to some embodiments of the present invention, the heat exchange part includes: a limiting heat exchange part, which is located on both sides and / or the top of the installation space, and is used to limit the position of the burner in the installation space.

[0009] According to some embodiments of the present invention, the heat exchanger is a split structure and includes: an upper body and a lower body, the upper body is configured as an upper heat exchanger and the lower body is configured as a lower heat exchanger, the upper body and the lower body are connected, and the burner is arranged at the connection between the split upper body and the lower body.

[0010] Furthermore, the supporting heat exchange part is located at the inner top of the lower body, the bottom surface of the burner is supported on the supporting heat exchange part and the top surface is suitable for being limited by the limiting heat exchange part located above the burner.

[0011] Specifically, the limiting heat exchange part includes: a top limiting heat exchange part and a side limiting heat exchange part. The top limiting heat exchange part is located at the top of the burner and limits the top of the burner. The side limiting heat exchange part is located on the side of the burner and limits the side of the burner.

[0012] Further, the top limiting heat exchange part is a part of the upper body, and the side limiting heat exchange part and the supporting heat exchange part are a part of the lower body.

[0013] Specifically, the supporting heat exchange part is divided into a middle group, a first side group and a second side group. The supporting heat exchange part of the middle group is supported in the middle area of ​​the bottom surface of the burner, the supporting heat exchange part of the first side group is supported at the junction of the bottom surface and the first side surface of the burner, and the supporting heat exchange part of the second side group is supported at the junction of the bottom surface and the second side surface of the burner.

[0014] Furthermore, the side limiting heat exchange portion is limited at the first side surface and the second side surface respectively and extends along the length direction of the burner respectively.

[0015] Optionally, the side limiting heat exchange portion has a larger cross-sectional size than the supporting heat exchange portion.

[0016] According to some embodiments of the present invention, the cross-section of the side limiting heat exchange portion is elliptical and the major axis is parallel to the side of the burner, and the size of the major axis is equivalent to or slightly smaller than the thickness of the burner.

[0017] Optionally, the cross-section of the supporting heat exchange portion is an ellipse and the major axis is parallel to the bottom surface of the burner; or the cross-section of the supporting heat exchange portion is an ellipse and the minor axis is parallel to the bottom surface of the burner, and the supporting heat exchange portion is multiple and spaced apart and supported on the bottom surface of the burner.

[0018] According to some embodiments of the present invention, heat exchange tubes are further arranged directly below the supporting heat exchange parts of the first side group and directly below the supporting heat exchange parts of the second side group. The heat exchange tubes, the supporting heat exchange parts of the first side group, the supporting heat exchange parts of the second side group and the supporting heat exchange parts of the middle group together form a lower space opening downward, and the lower space is suitable for being constructed as a lower combustion space.

[0019] According to some embodiments of the present invention, the top limiting heat exchange part is divided into a first side group and a second side group, the top limiting heat exchange part of the first side group is limited at the junction of the top surface of the burner and the first side surface, and the top limiting heat exchange part of the second side group is limited at the junction of the top surface of the burner and the second side surface.

[0020] Furthermore, the top of the burner extends into the upper body, and the top limiting heat exchange portion is located at the inner bottom of the upper body.

[0021] According to some embodiments of the present invention, a heat exchange tube is arranged above the top limiting heat exchange part, and the spaced-apart first side group and second side group of the top limiting heat exchange part and the heat exchange tube above form an upper space that is open downward and faces the burner.

[0022] Optionally, the upper body and the lower body each have independent water inlet and water outlet, thereby forming a parallel structure; or one of the upper body and the lower body is provided with a water inlet and the other is provided with a water outlet, and the upper body and the lower body are connected by an intermediate connecting pipe, thereby forming a series structure.

[0023] According to some embodiments of the present invention, the burner is a flameless catalytic burner.

[0024] A gas water heater according to another embodiment of the present invention includes the above-mentioned combustion and heat exchange component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the assembly of the combustion and heat exchange components;

[0026] Figure 2 It is an exploded schematic diagram of the combustion heat exchange component;

[0027] Figure 3 is a cross-sectional view of a combustion heat exchange component;

[0028] Figure 4 It is a schematic diagram of a parallel structure formed by an upper body and a lower body;

[0029] Figure 5 It is a schematic diagram of a series structure formed by an upper body and a lower body;

[0030] Figure 6 It is the assembly diagram of the upper body;

[0031] Figure 7 It is a decomposed schematic diagram of the upper body;

[0032] Figure 8 It is the assembly diagram of the lower body;

[0033] Fig. 9 It is an exploded schematic diagram of the lower body;

[0034] Fig.10 It is a schematic diagram of another embodiment of the limited heat exchange part.

[0035] Reference numerals:

[0036] Combustion heat exchange assembly 10, heat exchanger 1, upper body 11, upper body flange 111, heat exchange fin 112, upper front plate 113, upper rear plate 114, upper left plate 115, upper right plate 116, upper left inner plate 117, upper right inner plate 118, lower body 12, lower body flange 121, observation window 122, lower front plate 123, lower rear plate 124, lower left plate 125, lower right plate 126, lower left inner plate 127, lower right inner plate 128, heat exchange hole 13, heat exchange convex 14, burner 2, heat exchange part 3, support Support heat exchange part 31, middle group support heat exchange part 311, first side group support heat exchange part 312, second side group support heat exchange part 313, limit heat exchange part 32, top limit heat exchange part 321, first side group top limit heat exchange part 3211, second side group top limit heat exchange part 3212, side limit heat exchange part 322, upper heat exchange tube 331, lower heat exchange tube 332, lower space 34, upper space 35, water inlet 36, water outlet 37, surrounding panels 38, middle connecting tube 39, installation space 4. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Combine the following Figure 1-Figure 10 The combustion heat exchange assembly 10 according to the embodiment of the present invention is described in detail.

[0041] Reference Figure 1-Figure 3 As shown, the combustion heat exchange component 10 according to the embodiment of the present invention may include: a heat exchanger 1 and a burner 2, the heat exchanger 1 has surrounding panels 38, a heat exchange part 3 is arranged inside the surrounding panels 38, and a heat exchange medium channel is provided in the heat exchange part 3. Water can flow in the heat exchange medium channel. After being heated by the burner 2, the water is discharged from the water outlet of the combustion heat exchange component 10 for user use.

[0042] An installation space 4 is formed in the heat exchanger 1, and the burner 2 is at least partially arranged in the installation space 4, and the burner 2 is positioned by the heat exchange part 3. When the burner 2 burns, the heat generated by the combustion can be transferred to the cold water in the heat exchange medium channel of the heat exchange part 3 through the heat exchanger 1, thereby heating the cold water and increasing the water flow temperature in the heat exchange medium channel of the heat exchange part 3 to meet the user's demand for hot water. At the same time, the water flow in the heat exchange part 3 for positioning the burner 2 can also take away the heat generated by the combustion of the burner 2.

[0043] Heat exchange fins 112 may be provided on the heat exchange portion 3, thereby increasing the heat exchange area of ​​the heat exchange portion 3 and thus improving the heat exchange efficiency.

[0044] According to the combustion heat exchange component 10 of the embodiment of the present invention, the burner 2 is positioned by using the heat exchange part 3, so that the burner 2 is positioned and installed inside the heat exchanger 1. At the same time, the water flow in the heat exchange part 3 for positioning the burner 2 can also take away the heat generated by the combustion of the burner 2, preventing the burner 2 from continuously heating the heat exchanger 1 and causing the water outlet temperature of the combustion heat exchange component 10 to be higher than the user's use requirements. In addition, the burner 2 is embedded in the heat exchanger 1, and the connecting fasteners between the burner 2 and the heat exchanger 1 are eliminated, making the structure of the combustion heat exchange component 10 more compact and conducive to reducing the weight of the combustion heat exchange component 10.

[0045] Reference Figure 3As shown, the heat exchange part 3 includes: a supporting heat exchange part 31, the supporting heat exchange part 31 is used to support the burner 2, and the supporting heat exchange part 31 is located at the bottom of the installation space 4,

[0046] Reference Figure 3 As shown, the heat exchange part 3 includes: a limiting heat exchange part 32, which is located on both sides and / or the top of the installation space 4, and is used to limit the position of the burner 2 in the installation space 4. Figure 3 In the example, the position-limiting heat exchange portion 32 is located at both sides and the top of the installation space 4. In some embodiments not shown, the position-limiting heat exchange portion 32 may be located only at both sides of the installation space 4 (i.e., only at the side position-limiting heat exchange portion 322, without the top position-limiting heat exchange portion 321), or only at the top of the installation space 4 (i.e., only at the top position-limiting heat exchange portion 321, without the side position-limiting heat exchange portion 322).

[0047] Fig.10 What is shown is another embodiment of the limiting heat exchange part 32. The limiting heat exchange part 32 is arranged on both sides of the burner 2 without the supporting heat exchange part 31. The limiting heat exchange part 32 has both supporting and limiting functions to fix the burner 2 inside the heat exchanger 1.

[0048] It is particularly pointed out that the supporting heat exchange part 31 and the limiting heat exchange part 32 are both supporting and limiting structures, and the water flow in the heat exchange part 3 can take away the heat generated by the burner 2 during combustion, thereby solving the problem that the ordinary mounting bracket is easily deformed by high temperature and cannot install and fix the burner 2.

[0049] Specifically, the supporting heat exchange part 31 and the limiting heat exchange part 32 are arranged around the installation space 4. Figure 3 As shown, the supporting heat exchange part 31 is arranged at the bottom of the installation space 4, and the limiting heat exchange part 32 is arranged on both sides and the top of the installation space 4. Fig.10 As shown, the limiting heat exchange parts 32 are arranged on both sides of the installation space 4.

[0050] Reference Figure 1-Figure 3 As shown, the heat exchanger 1 is a split structure, and the heat exchanger 1 includes: an upper body 11 and a lower body 12, the upper body 11 is arranged above the lower body 12, and the upper body 11 and the lower body 12 are connected, and the burner 2 is arranged at the connection between the split upper body 11 and the lower body 12, that is, the burner 2 is arranged inside the heat exchanger 1.

[0051] Optionally, the upper body 11 and the lower body 12 can be made of stainless steel, or copper, which has better heat exchange effect and strong corrosion resistance.

[0052] The upper body 11 and the lower body 12 adopt a split structure, which is convenient for production assembly and after-sales replacement of the burner 2. The upper body 11, the burner 2, and the lower body 12 are arranged from top to bottom. Figure 3 In the embodiment of the present invention, the burner 2 is supported by the support heat exchange part 31, and the burner 2 is positioned and clamped by the limit heat exchange part 32. Fig.10 In the embodiment, the burner 2 is supported, positioned, and clamped by the limiting heat exchange portion 32, and no other fastening structure is required, which is conducive to reducing the number of connecting parts, and even completely eliminating the need to use connecting parts, thereby reducing the total weight of the combustion heat exchange assembly 10. When replacing the burner 2, the upper body 11 and the lower body 12 can be disassembled to take out the burner 2 for replacement, which is convenient and quick to operate.

[0053] In addition, since the upper body 11 and the lower body 12 are split structures, they have strong versatility. The lower body 12 can be used in combination with bodies with different numbers of heat exchange fins 112 to meet the heat exchange requirements of gas water heaters of different capacities, thereby improving the versatility of the lower body 12.

[0054] Further, refer to Figure 3 As shown, the support heat exchange part 31 is located at the inner top of the lower body 12, the bottom surface of the burner 2 is supported on the support heat exchange part 31, and the top surface of the burner 2 is suitable for being limited by the limiting heat exchange part 32 located above the burner 2, and the side of the burner 2 is suitable for being limited by the limiting heat exchange part 32 located on the side of the burner 2, so as to prevent the burner 2 from shaking inside the heat exchanger 1 and causing damage to the burner 2 itself or crashing into the heat exchanger 1.

[0055] Specifically, refer to Figure 3 As shown, the limiting heat exchange part 32 may include: a top limiting heat exchange part 321 and a side limiting heat exchange part 322, the top limiting heat exchange part 321 is located at the top of the burner 2 and limits the top of the burner 2, and the side limiting heat exchange part 322 is located on the side of the burner 2 and limits the side of the burner 2, thereby realizing accurate positioning of the burner 2 in the installation space 4 and avoiding shaking of the burner 2.

[0056] Reference Figure 2-Figure 3 As shown, when installing the burner 2, first place the burner 2 in the installation space 4 of the lower body 12, and preliminarily fix the burner 2 by supporting the heat exchange part 31 and limiting the side limit heat exchange part 322, and then assemble and fix the upper body 11 and the lower body 12, and clamp the burner 2 by the top limit heat exchange part 321, so as to fix the burner 2 in the installation space 4. The combustion heat exchange assembly 10 of the present invention can provide a burner 2 installation structure without affecting the heat exchange function of the combustion heat exchange assembly 10.

[0057] Further, the upper body 11 is configured as an upper heat exchanger, and the lower body 12 is configured as a lower heat exchanger, the top limit heat exchange portion 321 is a part of the upper body 11, and the side limit heat exchange portion 322 and the support heat exchange portion 31 are a part of the lower body 12. When the upper body 11 is separated from the lower body 12, the burner 2 can be installed or removed.

[0058] Specifically, refer to Figure 3 As shown, the support heat exchange part 31 is divided into an intermediate support heat exchange part 311, a first side support heat exchange part 312 and a second side support heat exchange part 313. The intermediate support heat exchange part 311 is supported in the middle area of ​​the bottom surface of the burner 2, the first side support heat exchange part 312 is supported at the junction of the bottom surface and the first side surface of the burner 2, and the second side support heat exchange part 313 is supported at the junction of the bottom surface and the second side surface of the burner 2. The intermediate support heat exchange part 311, the first side support heat exchange part 312 and the second side support heat exchange part 313 are spaced apart and distributed, which is conducive to improving the stability of the support heat exchange part 31 supporting the burner 2.

[0059] Furthermore, the left side limiting heat exchange portion 322 is limited to the first side surface of the burner 2 (i.e. Figure 3 The left side of the burner 2 is limited by the side limiting heat exchange portion 322 on the right side. Figure 3 The right side in the figure), and the side limiting heat exchange parts 322 on the left and right sides extend respectively along the length direction of the burner 2, thereby fully limiting the burner 2 in the length direction of the burner 2.

[0060] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] Optionally, the side limit heat exchange portion 322 has a larger cross-sectional dimension than the support heat exchange portion 31, thereby ensuring that the water flow in the side limit heat exchange portion 322 is larger, so that when the water flows through the side limit heat exchange portion 322, more excess combustion heat of the burner 2 can be taken away. In other embodiments not shown, the side limit heat exchange portion 322 may also have the same cross-sectional dimension as the support heat exchange portion 31, or the side limit heat exchange portion 322 may have a smaller cross-sectional dimension than the support heat exchange portion 31.

[0062] like Figure 3As shown, the cross-section of the side limiting heat exchange portion 322 is an ellipse and the major axis is parallel to the side of the burner 2. The size of the major axis is equivalent to or slightly smaller than the thickness of the burner 2. This can increase the contact area between the side limiting heat exchange portion 322 and the burner 2, thereby improving the positioning reliability of the side limiting heat exchange portion 322 on the burner 2, and at the same time is beneficial to improving the cooling effect of the side limiting heat exchange portion 322 on the burner 2.

[0063] The side limiting heat exchange part 322 is arranged on the side of the burner 2, and most of the energy radiated by the burner 2 passes upward through the upper body 11, and only a small part is radiated to the side of the side limiting heat exchange part 322. Therefore, the water temperature in the channel of the side limiting heat exchange part 322 is significantly lower than the water temperature in the heat exchange part.

[0064] Specifically, during the combustion stage of the burner 2, the temperature of the burner 2 will become higher and higher, causing the temperature of the burner 2 to exceed the appropriate operating temperature range. At this time, since the water temperature in the channel of the side limit heat exchange part 322 is lower than the temperature of the burner 2, under the action of heat transfer, the side limit heat exchange part 322 can cool the burner 2, so that the burner 2 is restored to the most suitable operating temperature range, thereby reducing the generation of harmful gases.

[0065] When the user does not need to use hot water, the burner 2 temporarily stops working, and the side limit heat exchange part 322 continues to cool down the burner 2, effectively reducing the internal temperature of the burner 2, so that the heat storage during the water outage is reduced, and the temperature rise during the water outage can be effectively controlled. In other words, it can be avoided that during the water outage stage, the high-temperature waste heat of the burner 2 continues to heat the water in the heat exchange part, causing the water temperature at the water outlet to continue to rise. At the same time, it can also prevent the burner 2 from continuously overheating and affecting the service life of the burner 2.

[0066] In some optional embodiments, the cross section of the supporting heat exchange portion 31 is elliptical and the major axis is parallel to the bottom surface of the burner 2, which is beneficial to increase the supporting area and improve the supporting strength; or Figure 3 In the embodiment, the cross section of the support heat exchange part 31 is an ellipse and the short axis is parallel to the bottom surface of the burner 2. There are multiple support heat exchange parts 31, and the multiple support heat exchange parts 31 are spaced apart and supported on the bottom surface of the burner 2, which is conducive to improving the stability of the support heat exchange part 31 supporting the burner 2.

[0067] A lower heat exchange tube 332 is further provided directly below the first side group supporting heat exchange portion 312 and directly below the second side group supporting heat exchange portion 313. The lower heat exchange tube 332, the first side group supporting heat exchange portion 312, the second side group supporting heat exchange portion 313 and the middle group supporting heat exchange portion 311 together form a lower space 34 opening downward. The lower space 34 is suitable for being constructed as a lower combustion space. A preheating burner can be provided in the lower combustion space to preliminarily heat the burner 2 so that the burner 2 reaches a suitable operating temperature. When the air-gas mixture burns in the burner 2, it burns fully, thereby greatly reducing the amount of harmful gases such as CO and NOx generated due to incomplete combustion.

[0068] The top limiting heat exchange part 321 is divided into a first side group top limiting heat exchange part 3211 and a second side group top limiting heat exchange part 3212. The first side group top limiting heat exchange part 3211 is limited at the junction of the top surface and the first side surface of the burner 2, and the second side group top limiting heat exchange part 3212 is limited at the junction of the top surface and the second side surface of the burner 2. The first side group top limiting heat exchange part 3211 and the second side group top limiting heat exchange part 3212 are arranged separately, which is conducive to improving the positioning effect of the top limiting heat exchange part 321 on the burner 2.

[0069] Furthermore, if Figure 3 As shown, the top of the burner 2 extends into the upper body 11 , and the top limiting heat exchange portion 321 is located at the inner bottom of the upper body 11 .

[0070] An upper heat exchange tube 331 is arranged above the top limit heat exchange part 321, and the spaced-apart first side group top limit heat exchange part 3211 and second side group top limit heat exchange part 3212 and the upper heat exchange tube 331 form an upper space 35 which is open downward and directly faces the burner 2. The heat of the burner 2 reaches the heat exchanger 1 after being buffered in the upper space 35, so as to avoid direct contact between the heat exchanger 1 and the burner 2 and affect the combustion effect of the burner 2.

[0071] In some embodiments not shown, the cross-sections of the heat exchange parts 3 may all be circular, and the cross-sectional areas of the circular cross-sections may be equal or unequal.

[0072] exist Fig.10 In the illustrated embodiment, when installing the burner 2 , the burner 2 is placed between the two limiting heat exchange parts 32 , and the two limiting heat exchange parts 32 clamp the burner 2 from both sides, thereby fixing the burner 2 in the installation space 4 . Fig.10 Water can also flow into the limited heat exchange part 32 in the middle, and the limited heat exchange part 32 has the same cooling effect on the burner 2 as Figure 3 The supporting heat exchange part 31 and the limiting heat exchange part 32 in the embodiment have the same cooling effect on the burner 2, which will not be described in detail here.

[0073] Optionally, refer to Figure 4 In the embodiment shown, the upper body 11 and the lower body 12 have independent water inlets 36 and water outlets 37, thereby forming a parallel structure. In conjunction with the water volume server, the water flow in the upper body 11 and the lower body 12 can be individually controlled to meet different heat exchange requirements.

[0074] Or refer to Figure 5 In the embodiment shown, one of the upper body 11 and the lower body 12 is provided with a water inlet 36 and the other is provided with a water outlet 37, and the upper body 11 and the lower body 12 are connected through an intermediate connecting pipe 39, thereby forming a series structure. In other words, when the upper body 11 and the lower body 12 are connected in series, water flows in from the water inlet 36 of the lower body 12, then enters the upper body 11 through the intermediate connecting pipe 39, and finally flows out from the water outlet 37 of the upper body 11. The combustion heat exchange assembly 10 of the present invention provides the possibility of two water circuit connections, parallel and series, and the appropriate water circuit connection method can be selected according to product needs, which is superior to the single series water circuit method of the existing heat exchanger.

[0075] Each of the upper body 11 and the lower body 12 has a surrounding panel 38 , and a heat exchange part 3 is arranged inside the surrounding panel 38 . The heat exchange part 3 is a heat exchange tube. The surrounding panel 38 can protect the heat exchange part 3 and the burner 2 .

[0076] Specifically, refer to Figure 6-Figure 7 As shown, the surrounding panels 38 of the upper body 11 include an upper front panel 113, an upper rear panel 114, an upper left panel 115, and an upper right panel 116. The upper left inner panel 117 and the upper right inner panel 118 are arranged between the upper left panel 115 and the upper right panel 116, and the heat exchange portion 3 of the upper body 11 is arranged between the upper left inner panel 117 and the upper right inner panel 118. Heat exchange holes 13 are arranged on the upper left inner panel 117 and the upper right inner panel 118. Heat exchange convex humps 14 corresponding to the heat exchange holes 13 are arranged on the surface of the upper left panel 115 facing the upper left inner panel 117 and on the surface of the upper right panel 116 facing the upper right inner panel 118. Water entering the upper body 11 from the water inlet 36 first enters the heat exchange convex humps 14, then enters the heat exchange holes 13 from the heat exchange convex humps 14, and then enters the heat exchange portion 3 corresponding to the heat exchange holes 13. The heat exchange fins 112 are disposed on the heat exchange portion 3 of the upper body 11 .

[0077] Reference Figure 8-Figure 9As shown, the surrounding panels 38 of the upper body 11 include a lower front panel 123, a lower rear panel 124, a lower left panel 125, and a lower right panel 126. The lower left inner panel 127 and the lower right inner panel 128 are arranged between the lower left panel 125 and the lower right panel 126, and the heat exchange portion 3 of the upper body 11 is arranged between the lower left inner panel 127 and the lower right inner panel 128. Heat exchange holes 13 are arranged on the lower left inner panel 127 and the lower right inner panel 128. Heat exchange convex humps 14 corresponding to the heat exchange holes 13 are arranged on the surface of the lower left panel 125 facing the lower left inner panel 127 and on the surface of the lower right panel 126 facing the lower right inner panel 128. Water entering the upper body 11 from the water inlet 36 first enters the heat exchange convex humps 14, then enters the heat exchange holes 13 from the heat exchange convex humps 14, and then enters the heat exchange portion 3 corresponding to the heat exchange holes 13.

[0078] Optionally, the upper left inner plate 117 is welded and fixed to the upper left plate 115, the upper right inner plate 118 is welded and fixed to the upper right plate 116, the lower left inner plate 127 is welded and fixed to the lower left plate 125, and the lower right inner plate 128 is welded and fixed to the lower right plate 126, and a water channel is formed between the heat exchange bulge 14 and the corresponding heat exchange hole 13, and is connected to the heat exchange part 3.

[0079] The lower front plate 123 and the lower rear plate 124 are provided with a lower body flange 121, and the upper front plate 113 and the upper rear plate 114 are provided with an upper body flange 111. Figure 1 , Figure 3 As shown, when the upper body 11 is buckled with the lower body 12, the upper body flange 111 at the bottom of the upper body 11 is suitable for fitting with the lower body flange 121 at the top of the lower body 12, and bolt fasteners can be used to fix the upper body flange 111 and the lower body flange 121, thereby achieving the fixation of the upper body 11 and the lower body 12.

[0080] An observation window 122 is also provided on the lower front plate 123 to facilitate observation of the combustion conditions in the lower combustion space.

[0081] The burner 2 is a flameless catalytic burner 2 , and air and fuel gas are mixed and then catalytically burned in the burner 2 .

[0082] According to another embodiment of the present invention, the gas water heater comprises the combustion heat exchange assembly 10 of the above embodiment. The burner 2 is fixed in the installation space 4 in the heat exchanger 1 by the support heat exchange part 31 and the limit heat exchange part 32, and the heat generated by the combustion of the burner 2 is taken away by the water flow in the support heat exchange part 31 and the limit heat exchange part 32, so that the gas water heater can realize the functions of installing and fixing the burner 2 and exchanging heat, and it is convenient to install and replace the burner 2.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0084] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A combustion heat exchange component, characterized in that: include: A heat exchanger, wherein the heat exchanger has surrounding panels, a heat exchange portion is arranged inside the surrounding panels, a heat exchange medium channel is arranged inside the heat exchanger, and an installation space is formed inside the heat exchanger; a burner, the burner being at least partially disposed in the installation space and being positioned by the heat exchange portion; The heat exchange part comprises: a supporting heat exchange part, the supporting heat exchange part is located at the bottom of the installation space, the supporting heat exchange part is used to support the burner, and support the burner to be arranged in the installation space; The heat exchange part comprises: a position-limiting heat exchange part, the position-limiting heat exchange part is located at both sides and the top of the installation space, and the position-limiting heat exchange part is used to limit the position of the burner in the installation space; The heat exchanger is a split structure and comprises: an upper body and a lower body, the upper body is configured as an upper heat exchanger and the lower body is configured as a lower heat exchanger, the upper body and the lower body are connected, and the burner is arranged at the connection between the upper body and the lower body of the split body; The upper body and the lower body each have an independent water inlet and outlet, thereby forming a parallel structure; The supporting heat exchange part is located at the inner top of the lower body, the bottom surface of the burner is supported on the supporting heat exchange part and the top surface is suitable for being limited by the limiting heat exchange part located above the burner; The limiting heat exchange part includes: a top limiting heat exchange part and a side limiting heat exchange part. The top limiting heat exchange part is located at the top of the burner and limits the top of the burner. The side limiting heat exchange part is located on the side of the burner and limits the side of the burner.

2. The combustion heat exchange assembly according to claim 1, characterized in that: The top limiting heat exchange part is a part of the upper body, and the side limiting heat exchange part and the supporting heat exchange part are a part of the lower body.

3. The combustion heat exchange assembly according to claim 1, characterized in that: The supporting heat exchange part is divided into a middle group, a first side group and a second side group. The supporting heat exchange part of the middle group is supported in the middle area of ​​the bottom surface of the burner, the supporting heat exchange part of the first side group is supported at the junction of the bottom surface and the first side surface of the burner, and the supporting heat exchange part of the second side group is supported at the junction of the bottom surface and the second side surface of the burner.

4. The combustion heat exchange assembly according to claim 3, characterized in that: The side limiting heat exchange parts are respectively limited at the first side surface and the second side surface and respectively extend along the length direction of the burner.

5. The combustion heat exchange assembly according to claim 4, characterized in that: The side limiting heat exchange portion has a larger cross-sectional dimension than the supporting heat exchange portion.

6. The combustion heat exchange assembly according to claim 5, characterized in that: The cross section of the side limiting heat exchange portion is an ellipse, and the major axis is parallel to the side of the burner. The size of the major axis is equivalent to or slightly smaller than the thickness of the burner.

7. The combustion heat exchange assembly according to claim 5, characterized in that: The cross section of the supporting heat exchange portion is an ellipse and the major axis is parallel to the bottom surface of the burner; or The cross section of the supporting heat exchange portion is an ellipse, and the short axis is parallel to the bottom surface of the burner. The supporting heat exchange portion is in a plurality and is supported on the bottom surface of the burner at intervals.

8. The combustion heat exchange assembly according to claim 3, characterized in that: Heat exchange tubes are also arranged directly below the supporting heat exchange parts of the first side group and directly below the supporting heat exchange parts of the second side group. The heat exchange tubes, the supporting heat exchange parts of the first side group, the supporting heat exchange parts of the second side group and the supporting heat exchange parts of the middle group together form a lower space opening downward, and the lower space is suitable for being constructed as a lower combustion space.

9. The combustion heat exchange assembly according to claim 1, characterized in that: The top limiting heat exchange part is divided into a first side group and a second side group. The top limiting heat exchange part of the first side group is limited at the junction of the top surface and the first side surface of the burner, and the top limiting heat exchange part of the second side group is limited at the junction of the top surface and the second side surface of the burner.

10. The combustion heat exchange assembly according to claim 9, characterized in that: The top of the burner extends into the upper body, and the top limiting heat exchange portion is located at the inner bottom of the upper body.

11. The combustion heat exchange assembly according to claim 9, characterized in that: A heat exchange tube is arranged above the top position-limiting heat exchange part, and the spaced-apart first side group and second side group of the top position-limiting heat exchange part and the heat exchange tube above form an upper space which is open downward and directly faces the burner.

12. The combustion heat exchange assembly according to claim 1, characterized in that: The burner is a flameless catalytic burner.

13. A gas water heater, characterized in that: It comprises a combustion heat exchange component according to any one of claims 1-12.

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