Heat exchanger fixing structure and gas water heater

Abstract

The utility model relates to a heat exchanger fixing structure and a gas water heater. Relates to the technical field of water heaters. The connecting structure is used for fixedly connecting a heat exchanger frame and a combustor and specifically comprises a fixing plate fixedly connected with the bottom of the heat exchanger frame and at least two connecting plates extending downwards on the fixing plate, and the at least two connecting plates are used for being fixedly connected with the combustor. Due to the fact that the fixing plate is provided with the at least two connecting plates extending downwards, one connecting plate is provided with the positioning hole, the other connecting plate is provided with the adjusting hole, the adjusting hole and the positioning hole are both used for being fixedly connected with the burner, and the adjusting hole is used for adjusting the position where the burner is fixedly connected with the connecting plates. Therefore, the stability of the fixed connection of the heat exchanger frame and the combustor is ensured, the fixed connection of the heat exchanger frame and the combustor is simpler and more convenient, the implementation is easy, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a heat exchanger fixing structure and a gas water heater. Background Art

[0002] Water heaters are an indispensable device for home life. In terms of the energy used, they can be roughly divided into gas water heaters, electric water heaters and solar water heaters, among which gas water heaters are widely used by the general public. Existing gas water heaters are equipped with a fan, a burner and a heat exchanger inside the body. The heat exchanger is connected to a cold water pipeline and a hot water pipeline. The cold water pipeline and the hot water pipeline can form a water passage. One end of the cold water pipeline has a cold water inlet, which can be connected to an appropriate water source for inputting cold water to be heated. One end of the hot water pipeline has a hot water outlet, and cold water to be heated can be input from the cold water inlet and the cold water pipeline, so that the cold water is transported to the heat exchanger, and the cold water enters the heat exchanger for heat exchange, and then the hot water is output from the hot water pipeline and the hot water outlet for use.

[0003] Since the heat exchange between the heat exchanger and the cold water is carried out through the flame generated by the burner entering the flame holding chamber of the heat exchanger frame, thereby generating high-temperature flue gas in the flame holding chamber of the heat exchanger frame, and the high-temperature flue gas exchanges heat with the cold water entering the heat exchanger to heat the cold water, so the burner of the gas water heater needs to be fixedly connected to the bottom of the heat exchanger frame. How to ensure the stability of the fixed connection between the heat exchanger frame and the burner, so that the burner can stably supply heat to the heat exchanger, and at the same time make the fixed connection between the heat exchanger frame and the burner simpler, more convenient, easier to implement, and improve production efficiency, is a problem that needs to be solved in production at present. Utility Model Content

[0004] The purpose of the utility model is to provide a heat exchanger fixing structure and a gas water heater to address the deficiencies of the above-mentioned prior art, which can realize the fixed connection between the heat exchanger frame and the burner, and at the same time ensure the stability of the fixed connection between the heat exchanger frame and the burner, make the fixed connection between the heat exchanger frame and the burner simpler, more convenient and easier to implement, thereby improving production efficiency.

[0005] The utility model proposes a heat exchanger fixing structure, which is used for fixing a heat exchanger frame to a burner, comprising a fixing plate fixedly connected to the bottom of the heat exchanger frame, and at least two connecting plates extending downward from the fixing plate, at least two of the connecting plates are used for fixing the burner; one of the connecting plates is provided with a positioning hole, and the other of the connecting plates is provided with an adjustment hole, both of the adjustment hole and the positioning hole are used for fixing the burner, and the adjustment hole is used for adjusting the position of the fixed connection between the burner and the connecting plate.

[0006] Furthermore, the positioning hole is a through hole provided on one of the connecting plates, and the adjustment hole is a strip hole horizontally provided on the other connecting plate.

[0007] Furthermore, the fixing plate includes two L-shaped plates that can be assembled into a circle, the two L-shaped plates are fixedly connected to the bottom of the heat exchanger frame at the same time, and the two L-shaped plates are provided with two connecting plates extending downward.

[0008] Furthermore, the two L-shaped plates assembled into a circle, the connecting plates with the positioning holes provided on the two L-shaped plates are diagonally arranged, and the connecting plates with the adjustment holes provided on the two L-shaped plates are diagonally arranged.

[0009] Furthermore, the L-shaped plate is provided with a splicing portion at one end and a splicing groove at the other end. When the two L-shaped plates are spliced ​​together for a circle, the splicing portion of one L-shaped plate is spliced ​​with the splicing groove of the other L-shaped plate, and the splicing groove of the L-shaped plate is spliced ​​with the splicing portion of the other L-shaped plate.

[0010] Furthermore, the splicing portion is provided with an inserting hole, and the bottom of the splicing groove is provided with an inserting column, and when the splicing portion is spliced ​​with the splicing groove, the inserting column is inserted into the inserting hole.

[0011] Furthermore, an inner lining plate extends upward from the fixing plate, and when the fixing plate is fixedly connected to the bottom of the heat exchanger frame, the inner lining plate fits against the cavity wall of the heat exchanger frame.

[0012] Furthermore, a peripheral edge is provided on the bottom periphery of the heat exchanger frame, and a pressure plate is provided on the fixed plate. When the peripheral edge is in contact with the upper surface of the fixed plate, the pressure plate limits the peripheral edge.

[0013] Furthermore, the edge pressing plates are multiple and are arranged on the periphery of the fixing plate, and the edge pressing plates can be bent on the fixing plate to be parallel to the upper surface of the fixing plate.

[0014] The utility model also provides a gas water heater, comprising the above-mentioned heat exchanger fixing structure.

[0015] The utility model provides a heat exchanger fixing structure and a gas water heater having the following gain effects:

[0016] (1) At least two connecting plates extend downward from the fixing plate of the fixing structure, one of which is provided with a positioning hole, and the other connecting plate is provided with an adjustment hole, the adjustment hole and the positioning hole are both used for fixed connection with the burner, and the adjustment hole is used to adjust the position of the fixed connection between the burner and the connecting plate, thereby ensuring the stability of the fixed connection between the heat exchanger frame and the burner, and making the fixed connection between the heat exchanger frame and the burner simpler, more convenient, and easier to implement, thereby improving production efficiency;

[0017] (2) The fixing plate of the fixing structure includes two L-shaped plates, which are fixedly connected to the bottom of the heat exchanger frame at the same time by splicing the two L-shaped plates together, so that the fixing plate is completely distributed at the bottom of the heat exchanger frame, thereby enhancing the connection strength between the heat exchanger frame and the fixing plate, and ensuring the stability of the fixed connection between the heat exchanger frame and the burner;

[0018] (3) The connecting plates with positioning holes on the two L-shaped plates of the fixing structure are arranged diagonally, and the connecting plates with adjustment holes on the two L-shaped plates are arranged diagonally. The fixed connection between the burner and the fixing structure can be positioned through the two diagonally arranged positioning holes; the two diagonally arranged adjustment holes can eliminate the alignment error of the fixed connection between the burner and the two connecting plates, thereby ensuring the stability of the fixed connection between the heat exchanger frame and the burner, and making the fixed connection between the heat exchanger frame and the burner simpler and more convenient;

[0019] (4) One end of the two L-shaped plates of the fixed structure is provided with a splicing portion, and the other end is provided with a splicing groove. When the two L-shaped plates are spliced ​​together, the splicing portion at the head end of one L-shaped plate is spliced ​​with the splicing groove at the tail end of the other L-shaped plate, and at the same time, the splicing groove at the tail end of the L-shaped plate is spliced ​​with the splicing portion at the head end of the other L-shaped plate, so that the two L-shaped plates are spliced ​​head to tail to form an integral structure, thereby enhancing the stability of the fixed structure, and further ensuring the stability of the fixed connection between the heat exchanger frame and the burner;

[0020] (5) The splicing parts of the two L-shaped plates of the fixed structure are both provided with plug-in holes, and the bottoms of the splicing grooves of the two L-shaped plates are both provided with plug-in columns. When the splicing parts and the splicing grooves are spliced ​​end to end, the plug-in columns and the plug-in holes are connected by interference fit, thereby enhancing the integrity of the fixed structure, further enhancing the stability of the fixed structure, and thus ensuring the stability of the fixed connection between the heat exchanger frame and the burner;

[0021] (6) The two L-shaped plates of the fixed structure are each provided with a pressure plate, and the corresponding heat exchanger frame is provided with a surrounding edge at the bottom. When the surrounding edge at the bottom of the heat exchanger frame is in contact with the upper surfaces of the two L-shaped plates, a plurality of pressure plates located at the outer periphery of the two L-shaped plates are bent to be parallel to the upper surfaces of the two L-shaped plates, so that the plurality of pressure plates press the surrounding edge at the bottom of the heat exchanger frame against the upper surfaces of the two L-shaped plates, thereby realizing a fixed connection between the two L-shaped plates and the heat exchanger frame and enhancing the stability of the fixed connection between the two L-shaped plates and the heat exchanger frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the utility model and, together with the description, are used to explain the principle of the utility model. In the accompanying drawings, like reference numerals are used to represent like elements.

[0023] Figure 1 This is a schematic diagram of a structure in which a heat exchanger fixing structure is fixedly connected to the bottom of a heat exchanger frame according to an embodiment of the utility model;

[0024] Figure 2 This is a structural schematic diagram of a heat exchanger fixing structure according to an embodiment of the utility model;

[0025] Figure 3 This is a structural schematic diagram of an L-shaped plate of a heat exchanger fixing structure according to an embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a heat exchanger frame according to an embodiment of the utility model.

[0027] In the figure: 1. fixing plate; 11. L-shaped plate; 111. splicing part; 1111. plug-in hole; 112. splicing groove; 1121. plug-in column; 113. lining plate; 114. edge plate; 2. connecting plate; 21. positioning hole; 22. adjusting hole; 3. heat exchanger frame; 31. cavity wall; 32. surrounding edge. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 to Figure 4A heat exchanger fixing structure of an embodiment of the utility model is used to fix the heat exchanger frame 3 with the burner, including a fixing plate 1 fixedly connected to the bottom of the heat exchanger frame 3, and at least two connecting plates 2 extending downward from the fixing plate 1, at least two connecting plates 2 are used to be fixedly connected to the burner; a positioning hole 21 is provided on one connecting plate 2, and an adjustment hole 22 is provided on the other connecting plate 2, the adjustment hole 22 and the positioning hole 21 are both used to be fixedly connected to the burner, and the adjustment hole 22 is used to adjust the position of the fixed connection between the burner and the connecting plate 2.

[0030] Since the heat exchanger exchanges heat with the cold water, the flame generated by the burner enters the flame holding chamber of the heat exchanger frame 3, thereby generating high-temperature flue gas in the flame holding chamber of the heat exchanger frame 3. The high-temperature flue gas exchanges heat with the cold water entering the heat exchanger to heat the cold water. Therefore, the burner of the gas water heater needs to be fixedly connected to the bottom of the heat exchanger frame 3.

[0031] In this embodiment, the heat exchanger fixing structure includes a fixing plate 1 and at least two connecting plates 2 arranged on the fixing plate 1, the fixing plate 1 is fixedly connected to the heat exchanger frame 3, and at least two connecting plates 2 are fixedly connected to the burner, so that the burner is fixedly connected to the bottom of the heat exchanger frame 3 through this fixing structure.

[0032] In order to ensure the stability of the fixed connection between the burner and the heat exchanger frame 3, a conventional gas water heater usually needs to be provided with a plurality of connection holes for fixed connection with the burner on the fixed structure, and a plurality of screws are respectively passed through the plurality of connection holes and screwed with the threaded holes on the burner to achieve the fixed connection between the burner and the fixed structure. Therefore, when designing, the positions of the plurality of connection holes on the fixed structure need to correspond to the positions of the plurality of threaded holes on the burner. However, in actual production, there may be errors in the processing of the hole positions, resulting in the positions of the plurality of connection holes on the fixed structure not being able to completely correspond to the positions of the plurality of threaded holes on the burner, which makes it difficult to fix the burner with the heat exchanger frame 3, thereby affecting the production efficiency of the gas water heater.

[0033] Therefore, in the present application, at least two connecting plates 2 are extended downward from the fixing plate 1, one of which is provided with a positioning hole 21, and the other is provided with an adjustment hole 22. When the burner is fixedly connected to the fixing structure, the positioning hole 21 on one of the connecting plates 2 can be penetrated by a screw, and then screwed with the corresponding threaded hole on the burner, so that the connecting plate 2 is fixedly connected to the burner, and the fixed connection between the burner and the fixing structure is positioned. At this time, since the positioning hole 21 on the connecting plate 2 is the first connection hole fixedly connected to the burner, there is no situation where it cannot completely correspond to the threaded hole on the burner.

[0034] After positioning the burner, another screw is passed through the adjustment hole 22 on the other connecting plate 2, and then screwed to the corresponding threaded hole on the burner to fix the connecting plate 2 to the burner. Therefore, the present application fixes the burner by at least two connecting plates 2 to achieve a fixed connection between the burner and the fixing structure, thereby ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner, so that the burner can stably supply heat to the heat exchanger.

[0035] When another screw passes through the adjustment hole 22 on the other connecting plate 2 and is screwed into the corresponding threaded hole on the burner, since the adjustment hole 22 can adjust the position of the fixed connection between the burner and the connecting plate 2, even if there is an error in the hole processing on the burner, resulting in the corresponding threaded hole on the burner being unable to completely correspond to the adjustment hole 22, the screw can also be screwed into the threaded hole on the burner through the adjustment hole 22 to complete the fixed connection between the connecting plate 2 and the burner, thereby making the fixed connection between the heat exchanger frame 3 and the burner simpler, more convenient, and easier to implement, thereby improving production efficiency.

[0036] Specifically, in this embodiment, the positioning hole 21 is a through hole provided on one connecting plate 2, and the adjustment hole 22 is a strip hole provided horizontally on another connecting plate 2. In conventional gas water heaters, the connecting holes on the fixed structure for fixed connection with the burner are all circular through holes. When there is a processing error between the multiple connecting holes on the fixed structure or the multiple threaded holes on the burner, the positions of the multiple connecting holes on the fixed structure deviate from the positions of the multiple threaded holes on the burner, which will make it difficult to fix the burner with the heat exchanger frame 3, thereby affecting the production efficiency of the gas water heater.

[0037] Therefore, in the present application, the positioning hole 21 provided on a connecting plate 2 is a through hole. When the burner is fixedly connected to the fixing structure, the screw passes through the positioning hole 21 on the connecting plate 2 and is screwed to the corresponding threaded hole on the burner to fix the connecting plate 2 to the burner, so that the fixed connection between the burner and the fixing structure can be positioned. Specifically, in the present embodiment, the positioning hole 21 can be a circular through hole or a strip-shaped through hole.

[0038] The adjustment hole 22 arranged on the other connecting plate 2 is a horizontally arranged strip hole. Therefore, even if there is an error in the hole position processing, resulting in the corresponding threaded hole on the burner not being able to completely correspond to the adjustment hole 22, the screw can also be screwed through the adjustment hole 22 and the threaded hole on the burner to complete the fixed connection between the connecting plate 2 and the burner, thereby making the fixed connection between the heat exchanger frame 3 and the burner simpler, more convenient, and easier to implement, thereby improving production efficiency.

[0039] In this embodiment, the fixing plate 1 includes two L-shaped plates 11 that can be assembled into a circle, and the two L-shaped plates 11 are fixedly connected to the bottom of the heat exchanger frame 3 at the same time, and two connecting plates 2 extending downward are provided on the two L-shaped plates 11. In the present application, the fixing plate 1 includes two L-shaped plates 11, and the two L-shaped plates 11 can be assembled into a circle. When the fixing plate 1 is fixedly connected to the heat exchanger frame 3, the two L-shaped plates 11 assembled into a circle are fixedly connected to the bottom of the heat exchanger frame 3 at the same time, so that the fixing plate 1 is completely distributed at the bottom of the heat exchanger frame 3, thereby enhancing the connection strength between the heat exchanger frame 3 and the fixing plate 1, and ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner.

[0040] Since two L-shaped plates 11 are each provided with two connecting plates 2 extending downward, when the two L-shaped plates 11 assembled into a circle are fixedly connected to the bottom of the heat exchanger frame 3 at the same time, the two connecting plates 2 respectively provided on the two L-shaped plates 11 can be used for fixed connection with the burner, that is, four connecting plates 2 are fixedly connected to the burner at the same time, thereby further ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner.

[0041] In this embodiment, the two L-shaped plates 11 that are assembled into one circle, the connecting plates 2 provided with the positioning holes 21 on the two L-shaped plates 11 are arranged diagonally, and the connecting plates 2 provided with the adjustment holes 22 on the two L-shaped plates 11 are arranged diagonally. Since two connecting plates 2 are arranged on each L-shaped plate 11, and the two connecting plates 2 on the same L-shaped plate 11, one of the connecting plates 2 is provided with the positioning hole 21, and the other connecting plate 2 is provided with the adjustment hole 22. Therefore, in this application, when the two L-shaped plates 11 are assembled into one circle, on the two L-shaped plates 11, the two connecting plates 2 provided with the positioning holes 21 are arranged diagonally, and the two connecting plates 2 provided with the adjustment holes 22 are arranged diagonally.

[0042] When the two L-shaped plates 11 are fixedly connected to the burner, firstly, screws are passed through the positioning holes 21 of the two diagonal connecting plates 2, and screwed to the two diagonal threaded holes on the burner, so that the two connecting plates 2 are fixedly connected to the burner, and the fixed connection between the burner and the fixed structure can be positioned; then, screws are passed through the adjustment holes 22 of the other two diagonal connecting plates 2, and screwed to the other two diagonal threaded holes on the burner, so that the two connecting plates 2 are fixedly connected to the burner, thereby realizing the fixed connection between the burner and the fixed structure.

[0043] Since the adjustment holes 22 of the two diagonal connecting plates 2 are horizontally arranged strip holes, even if there are errors in the processing of the adjustment holes 22 of the two connecting plates 2 or the other two diagonal threaded holes on the burner, the screws can still pass through the adjustment holes 22 of the two connecting plates 2 and be screwed to the other two diagonal threaded holes on the burner, thereby making the fixed connection between the heat exchanger frame 3 and the burner simpler, more convenient, and easier to implement, thereby improving production efficiency.

[0044] In this embodiment, a splicing portion 111 is provided at one end of the L-shaped plate 11, and a splicing groove 112 is provided at the other end. When the two L-shaped plates 11 are spliced ​​together, the splicing portion 111 of one L-shaped plate 11 is spliced ​​with the splicing groove 112 of the other L-shaped plate 11, and the splicing groove 112 of the L-shaped plate 11 is spliced ​​with the splicing portion 111 of the other L-shaped plate 11. In this application, the two L-shaped plates 11 are both provided with a splicing portion 111 at one end and a splicing groove 112 at the other end.

[0045] When the two L-shaped plates 11 are assembled into a circle, the splicing portion 111 at the head end of one of the L-shaped plates 11 is spliced ​​with the splicing groove 112 at the tail end of the other L-shaped plate 11, and at the same time, the splicing groove 112 at the tail end of the L-shaped plate 11 is spliced ​​with the splicing portion 111 at the head end of the other L-shaped plate 11, so that the two L-shaped plates 11 are spliced ​​head to tail to form an integral structure, thereby enhancing the stability of the fixed structure and further ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner.

[0046] In this embodiment, the splicing portion 111 is provided with a plug-in hole 1111, and a plug-in column 1121 is provided at the bottom of the splicing groove 112. When the splicing portion 111 and the splicing groove 112 are spliced, the plug-in column 1121 is plugged into the plug-in hole 1111. In this application, the splicing portions 111 of the two L-shaped plates 11 are provided with a plug-in hole 1111, and the splicing grooves 112 of the two L-shaped plates 11 are provided with a plug-in column 1121 at the bottom. When the two L-shaped plates 11 are spliced ​​end to end through the splicing portion 111 and the splicing groove 112, the plug-in column 1121 at the bottom of the corresponding splicing groove 112 is plugged into the plug-in hole 1111 on the corresponding splicing portion 111. In the present application, the connection between the plug-in column 1121 and the plug-in hole 1111 can be performed by interference fit, thereby enhancing the integrity of the fixed structure, further enhancing the stability of the fixed structure, and thereby ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner.

[0047] In this embodiment, an inner lining plate 113 extends upward from the fixing plate 1. When the fixing plate 1 is fixedly connected to the bottom of the heat exchanger frame 3, the inner lining plate 113 fits against the cavity wall 31 of the heat exchanger frame 3. In this application, an inner lining plate 113 extending upward is provided on the fixing plate 1. As mentioned in the previous embodiment, the fixing plate 1 includes two L-shaped plates 11, and therefore, an inner lining plate 113 extending upward is provided on both L-shaped plates 11.

[0048] When the two L-shaped plates 11 are fixedly connected to the heat exchanger frame 3, the inner lining plates 113 extending upward on the two L-shaped plates 11 extend into the cavity of the heat exchanger frame 3 and fit with the cavity wall 31 of the heat exchanger frame 3, so that the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3 is limited by the cooperation between the cavity wall 31 of the heat exchanger frame 3 and the inner lining plates 113, thereby enhancing the stability of the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3, thereby ensuring the stability of the fixed connection between the heat exchanger frame 3 and the burner.

[0049] In this embodiment, a peripheral edge 32 is provided on the bottom periphery of the heat exchanger frame 3, and a pressure plate 114 is provided on the fixed plate 1. When the peripheral edge 32 is in contact with the upper surface of the fixed plate 1, the pressure plate 114 limits the peripheral edge 32. In this application, a pressure plate 114 is provided on the fixed plate 1. In the previous embodiment, it is mentioned that the fixed plate 1 includes two L-shaped plates 11, that is, the pressure plates 114 are provided on both L-shaped plates 11.

[0050] In the present application, a peripheral edge 32 is provided on the bottom periphery of the corresponding heat exchanger frame 3. When the two L-shaped plates 11 are fixedly connected to the bottom of the heat exchanger frame 3, the peripheral edge 32 on the bottom periphery of the heat exchanger frame 3 is fitted with the upper surface of the two L-shaped plates 11. By setting a pressure plate 114 on the two L-shaped plates 11, the peripheral edge 32 on the bottom periphery of the heat exchanger frame 3 is limited, thereby realizing the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3.

[0051] Specifically, in the present embodiment, a plurality of edge pressing plates 114 are provided on the periphery of the fixed plate 1, that is, a plurality of edge pressing plates 114 are provided on the peripheries of the two L-shaped plates 11. When the two L-shaped plates 11 are fixedly connected to the bottom of the heat exchanger frame 3, the peripheral edge 32 of the bottom periphery of the heat exchanger frame 3 is firstly made to fit with the upper surfaces of the two L-shaped plates 11, and then the plurality of edge pressing plates 114 located on the periphery of the two L-shaped plates 11 are bent to be parallel to the upper surfaces of the two L-shaped plates 11, so that the plurality of edge pressing plates 114 press the peripheral edge 32 of the bottom periphery of the heat exchanger frame 3 against the upper surfaces of the two L-shaped plates 11, thereby realizing the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3, and enhancing the stability of the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3.

[0052] Furthermore, in actual implementation, bolts can be passed through the pressure plate 114, the peripheral edge 32 at the bottom of the heat exchanger frame 3, and the L-shaped plate 11 in sequence, and then screwed together with nuts to further fix the two L-shaped plates 11 to the heat exchanger frame 3, thereby enhancing the stability of the fixed connection between the two L-shaped plates 11 and the heat exchanger frame 3.

[0053] Since the heat exchanger frame 3 needs to be used for heat transfer in practical applications, in production, the heat exchanger frame 3 is usually made of copper with good thermal conductivity, and the fixing plate 1 is used to connect the heat exchanger frame 3 and the burner, and is usually made of stainless steel with high structural strength.

[0054] In the prior art, welding is usually used to connect the fixing plate 1 and the heat exchanger frame 3. Since the melting points of the heat exchanger frame 3 made of copper and the fixing plate 1 made of stainless steel are quite different, problems such as rough welding points, damage to the surface of the copper water tank caused by the welding head, and uneven appearance of the welding position are prone to occur.

[0055] This embodiment also provides a gas water heater, including the above-mentioned heat exchanger fixing structure.

[0056] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present utility model.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A heat exchanger fixing structure, used for fixing a heat exchanger frame (3) to a burner, characterized in that: The invention comprises a fixing plate (1) fixedly connected to the bottom of a heat exchanger frame (3), and at least two connecting plates (2) extending downward from the fixing plate (1), wherein at least two connecting plates (2) are used for fixedly connecting to a burner; one connecting plate (2) is provided with a positioning hole (21), and the other connecting plate (2) is provided with an adjustment hole (22), wherein the adjustment hole (22) and the positioning hole (21) are both used for fixedly connecting to the burner, and the adjustment hole (22) is used for adjusting the position of the fixed connection between the burner and the connecting plate (2).

2. A heat exchanger fixing structure as claimed in claim 1, characterized in that: The positioning hole (21) is a through hole provided on one of the connecting plates (2), and the adjustment hole (22) is a strip hole horizontally provided on the other connecting plate (2).

3. A heat exchanger fixing structure as claimed in claim 1, characterized in that: The fixing plate (1) comprises two L-shaped plates (11) which can be assembled into a circle, the two L-shaped plates (11) are fixedly connected to the bottom of the heat exchanger frame (3) at the same time, and the two L-shaped plates (11) are provided with two connecting plates (2) extending downwards.

4. A heat exchanger fixing structure as claimed in claim 3, characterized in that: The two L-shaped plates (11) are assembled to form a circle, the connecting plates (2) provided with the positioning holes (21) on the two L-shaped plates (11) are diagonally arranged, and the connecting plates (2) provided with the adjustment holes (22) on the two L-shaped plates (11) are diagonally arranged.

5. A heat exchanger fixing structure as claimed in claim 3, characterized in that: The L-shaped plate (11) is provided with a splicing portion (111) at one end and a splicing groove (112) at the other end. When the two L-shaped plates (11) are spliced ​​together to form a circle, the splicing portion (111) of one L-shaped plate (11) is spliced ​​with the splicing groove (112) of the other L-shaped plate (11), and the splicing groove (112) of the L-shaped plate (11) is spliced ​​with the splicing portion (111) of the other L-shaped plate (11).

6. A heat exchanger fixing structure as claimed in claim 5, characterized in that: The splicing portion (111) is provided with an inserting hole (1111), and the bottom of the splicing groove (112) is provided with an inserting column (1121); when the splicing portion (111) and the splicing groove (112) are spliced, the inserting column (1121) is inserted into the inserting hole (1111).

7. A heat exchanger fixing structure as claimed in claim 1, characterized in that: An inner lining plate (113) extends upward from the fixing plate (1); when the fixing plate (1) is fixedly connected to the bottom of the heat exchanger frame (3), the inner lining plate (113) fits against the cavity wall (31) of the heat exchanger frame (3).

8. A heat exchanger fixing structure as claimed in claim 1, characterized in that: The bottom periphery of the heat exchanger frame (3) is provided with a surrounding edge (32), and the fixing plate (1) is provided with a pressure plate (114). When the surrounding edge (32) is in contact with the upper surface of the fixing plate (1), the pressure plate (114) limits the surrounding edge (32).

9. A heat exchanger fixing structure as claimed in claim 8, characterized in that: The edge pressing plates (114) are multiple and are arranged on the outer periphery of the fixed plate (1). The edge pressing plates (114) can be bent on the fixed plate (1) to be parallel to the upper surface of the fixed plate (1).

10. A gas water heater, comprising the heat exchanger fixing structure according to any one of claims 1 to 9.

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