Wall-hanging stove heat exchanger

Abstract

The utility model discloses a heat exchanger of a wall-hanging stove, which comprises a shell, a heat exchanger, a heat exchanger and a heat exchanger. The heat exchange coil assembly is arranged in the cavity; the combustor door is connected to the shell so as to seal the cavity, and a first gas mixing channel capable of communicating with the cavity is formed in the combustor door; the connecting plate is arranged on the burner door, a gas mixing cavity is formed between the connecting plate and the burner door, and a through hole capable of communicating the gas mixing cavity with the hollow area of the heat exchange coil assembly is formed in the connecting plate; and the gas mixing plate is connected to the burner door and corresponds to the output end of the gas mixing channel, and a second gas mixing channel capable of communicating with the gas mixing cavity is formed between the gas mixing plate and the burner door. The utility model provides the wall-hanging stove heat exchanger capable of improving the gas mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wall-hung boiler technology, and in particular to a heat exchanger for a wall-hung boiler. Background Technology

[0002] As a common heating device, the performance of the heat exchanger in a wall-hung boiler directly affects heating efficiency and energy utilization. However, traditional wall-hung boiler heat exchangers have several problems: First, insufficient gas mixing; the poor mixing of gas and air required for combustion leads to incomplete combustion, which not only reduces heat generation efficiency but also produces more harmful gases, such as carbon monoxide, which is detrimental to the environment and human health. Second, low heat exchange efficiency; incomplete combustion results in less heat, and the heat exchange effect between high-temperature flue gas and heat exchange coil components is poor, leading to uneven heat distribution, increased energy consumption, and a reduced user experience. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of the prior art and provide a wall-hung boiler heat exchanger that can improve gas mixing efficiency.

[0004] To achieve the above objectives, the present invention adopts the following solution:

[0005] A wall-hung boiler heat exchanger, comprising:

[0006] The housing has a cavity and a smoke exhaust passage communicating with the cavity;

[0007] A heat exchange coil assembly is disposed within the cavity;

[0008] A burner door is connected to the housing to seal the chamber, and the burner door is provided with a first mixing passage that can communicate with the chamber.

[0009] A connecting plate is provided at the burner door, and a mixing chamber is formed between the connecting plate and the burner door. The connecting plate is provided with a through hole that can connect the mixing chamber and the hollow area of ​​the heat exchange coil assembly.

[0010] A mixing plate is connected to the burner door and corresponds to the output end of the mixing channel. A second mixing channel that can communicate with the mixing chamber is formed between the mixing plate and the burner door.

[0011] The mixing plate has a collection groove in the middle that allows the gas output from the output end of the first mixing channel to be concentrated.

[0012] The walls of the collection tank are tapered.

[0013] The mixing plate is also provided with a plurality of protruding bumps to form a mixing chamber between the mixing plate and the burner door, and the plurality of protruding bumps are equally spaced to ensure that the plurality of second mixing channels are equally spaced.

[0014] The burner door is also provided with a protruding mounting part, and the mounting part is provided with a mounting channel for placing the ignition needle.

[0015] The mixing plate is provided with a locking groove that can engage with the mounting part.

[0016] The top of the housing is also provided with a water collection box, which can seal the top of the housing's exhaust channel, and the water collection box is provided with a vent that can communicate with the exhaust channel.

[0017] The water collection box is equipped with a water collection trough, and a drain pipe connected to the water collection trough and draining water is also provided on one side of the water collection box.

[0018] The water collection box is also provided with a groove, which is located on one side of the water collection box and is recessed downward relative to the water collection trough. The drain pipe is connected to the bottom of the groove.

[0019] The housing assembly includes a left connecting plate, a right connecting plate, and an arc plate connecting the left connecting plate and the right connecting plate. The left connecting plate, the right connecting plate, and the arc plate together define the chamber. The smoke exhaust channel is disposed on the right connecting plate. A first exhaust channel is disposed at the top of the right connecting plate, and a second exhaust channel is disposed at the bottom of the right connecting plate.

[0020] Compared with existing technologies, this utility model has the following advantages: When the wall-hung boiler heat exchanger with the above structure is in use, the external gas is initially mixed and then enters the second mixing channel through the first mixing channel. Due to the obstruction of the mixing plate, the gas is mixed a second time. The mixed gas enters the mixing chamber and enters the hollow area of ​​the heat exchange coil assembly through the through hole. Then, the ignition device heats the gas in the inner chamber. The heated gas first exchanges heat with the heat exchange coil assembly and then is discharged from the exhaust channel. Because of the secondary mixing, the gas can be mixed more thoroughly, and more heat can be generated during heating, thus improving the heat exchange efficiency of the wall-hung boiler. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the heat exchanger for the wall-hung boiler of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the heat exchanger for the wall-hung boiler of this utility model;

[0023] Figure 3This is a schematic diagram of the shell structure of the heat exchanger for the wall-hung boiler of this utility model;

[0024] Figure 4 This is an exploded view of the heat exchanger of the wall-hung boiler of this utility model;

[0025] Figure 5 This is a schematic diagram of the mixing plate of the heat exchanger of the wall-hung boiler of this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] like Figures 1 to 5 As shown, a wall-hung boiler heat exchanger includes: a shell 1, wherein the shell 1 has a chamber 11 and a flue gas passage 12 communicating with the chamber 11; a heat exchange coil assembly 2, disposed in the chamber 11; a burner door 3, connected to the shell 1 to seal the chamber 11, the burner door 3 having a first mixing passage 31 communicating with the chamber 11; a connecting plate 4, disposed on the burner door 3, and a mixing chamber 41 is formed between the connecting plate 4 and the burner door, the connecting plate 4 having a through hole 42 communicating with the hollow area of ​​the mixing chamber 41 and the heat exchange coil assembly 2; and a mixing plate 5, connected to the burner door 3 and corresponding to the output end of the mixing passage, the mixing plate 5 and the burner door 3 having a second mixing passage 51 communicating with the mixing chamber 41.

[0029] When the wall-hung boiler heat exchanger with the above structure is in use, the external gas is initially mixed and then enters the second mixing channel 51 through the first mixing channel 31. Due to the obstruction of the mixing plate 5, the gas is mixed a second time. The mixed gas enters the mixing chamber 41 and enters the hollow area of ​​the heat exchange coil assembly 2 through the through hole 42. Then, the ignition device heats the gas in the inner chamber 11. The heated gas first exchanges heat with the heat exchange coil assembly 2 and then is discharged from the exhaust channel 12. Because of the secondary mixing, the gas can be mixed more thoroughly, and more heat can be generated during heating, thus improving the heat exchange efficiency of the wall-hung boiler.

[0030] The mixing plate 5 has a collecting groove 52 in the middle, which can concentrate the gas output from the output end of the first mixing channel 31. The collecting groove 52 is provided so that the gas output from the output end of the first mixing channel 31 is concentrated at the collecting groove 52, and then the gas flows outward evenly along the collecting groove 52, so that the gas passing through each of the second mixing channels 51 is equal.

[0031] The wall 53 of the collecting trough 52 is tapered, which provides sufficient space for the collecting trough 52. Moreover, the tapered shape allows the collected gas to be more concentrated, making the flow of the gas along the collecting trough 52 more uniform.

[0032] The mixing plate 5 is also provided with a plurality of protruding bumps 54 so that a mixing chamber 41 is formed between the mixing plate 5 and the burner door 3, and the plurality of protruding bumps 54 are equally spaced so that the plurality of second mixing channels 51 are equally spaced.

[0033] The protrusions 54 raise the body of the mixing plate 5, forming a mixing chamber 41 between the plate and the burner door 3. The protrusions 54 can be used for welding or screw connection to the burner, which is convenient for installation. Furthermore, since the protrusions 54 are equally spaced, the second mixing channel 51 is equally spaced at the outlet end, so that the amount of gas passing through is equal and more uniform.

[0034] The burner door 3 is also provided with a protruding mounting part 42, and the mounting part 42 is provided with a mounting channel 43 for placing the ignition needle. The mounting part 42 is provided for easy positioning, and the mounting channel 43 is provided for easy installation of the ignition needle, so that the ignition needle is oriented toward the hollow part of the heat exchange coil assembly 2, making installation more convenient.

[0035] The mixing plate 5 is provided with a locking groove 55 that can engage with the mounting part 42. The locking groove 55 facilitates the locking and fixing of the mixing plate 5 and the burner door 3.

[0036] The top of the housing 1 is also provided with a water collection box 6, which can seal the top of the exhaust channel 12 of the housing 1, and the water collection box 6 is provided with a vent 61 that can communicate with the exhaust channel 12 to collect the water vapor formed after combustion, so that the water vapor can be condensed in the water collection box 6.

[0037] The water collection box 6 is equipped with a water collection trough 62, and a drain pipe 63 connected to the water collection trough 62 and draining water is also provided on one side of the water collection box 6. The water collection trough 62 is used to collect condensate water and discharge it through the drain pipe 63.

[0038] The water collection box 6 is also provided with a groove 64, which is located on one side of the water collection box 6 and recessed downward relative to the water collection trough 62. The drain pipe 63 is connected to the bottom of the groove 64. The groove 64 is located on the lower side of the water collection trough 62, so that the water in the water collection trough 62 flows towards the groove 64 and collects, and then is discharged by the drain pipe 63.

[0039] The housing 1 assembly includes a left connecting plate 13, a right connecting plate 14, and an arc plate 15 connecting the left connecting plate 13 and the right connecting plate 14. The left connecting plate 13, the right connecting plate 14, and the arc plate 15 together define the chamber 11. The exhaust duct 12 is disposed on the right connecting plate 14. The top of the right connecting plate 14 is provided with a first exhaust duct 141, and the bottom of the right connecting plate 14 is provided with a second exhaust duct 142. The first exhaust duct 141 and the second exhaust duct 142 can discharge the exhaust gas generated after combustion, which is convenient to use.

[0040] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A heat exchanger for a wall-hung boiler, characterized in that, The utility model relates to a kind of gas stove, including: Shell (1), chamber (11) and smoke exhaust passage (12) are provided in the shell (1) with chamber (11) communication; Heat exchange coil assembly (2) is arranged in the chamber (11); Combustor door (3) is connected to the shell (1), to close the chamber (11), the combustor door (3) is provided with first gas mixing passage (31) that can be communicated with chamber (11); Connecting plate (4) is arranged in combustor door (3), and the connecting plate (4) is formed with gas mixing cavity (41) between the combustor door, and the connecting plate (4) is provided with through hole (42) that can be communicated with gas mixing cavity (41) and hollow area of heat exchange coil assembly (2); Gas mixing plate (5) is connected to the combustor door (3) and corresponds with the output end of gas mixing passage, and the gas mixing plate (5) and the combustor door (3) form second gas mixing passage (51) that can be communicated with gas mixing cavity (41).

2. The wall-hanging stove heat exchanger according to claim 1, characterized in that, The middle part of the gas mixing plate (5) is provided with a collection groove (52) that can concentrate the gas output from the output end of the first gas mixing passage (31).

3. The wall-hanging stove heat exchanger according to claim 2, characterized in that, The groove wall (53) of the collection groove (52) is tapered.

4. The wall-hung boiler exchanger according to claim 1 or 2 or 3, characterized in that, The gas mixing plate (5) is also provided with a plurality of protruding convex points (54) to form a gas mixing cavity (41) between the gas mixing plate (5) and the combustor door (3), and the plurality of convex points (54) are equidistantly spaced to equidistantly arrange the plurality of second gas mixing passages (51).

5. The wall-hung boiler exchanger according to claim 1 or 2 or 3, characterized in that, The combustor door (3) is also provided with a protruding mounting portion (32), and the mounting portion (32) is provided with a mounting passage (33) capable of placing an ignition needle.

6. The wall-hanging stove heat exchanger according to claim 5, wherein The gas mixing plate (5) is provided with a clamping groove (55) capable of cooperating with the mounting portion (32).

7. The wall-hanging stove heat exchanger according to claim 1, wherein The top of the shell (1) is also provided with a water collecting box (6) capable of closing the top of the smoke exhaust passage (12) of the shell (1), and the water collecting box (6) is provided with an air passage (61) capable of communicating with the smoke exhaust passage (12).

8. The wall-hanging stove heat exchanger according to claim 7, wherein The water collecting box (6) is provided with a water collecting groove (62), and one side of the water collecting box (6) is also provided with a drain pipe (63) communicating with the water collecting groove (62) and capable of draining water.

9. The wall-hanging stove heat exchanger according to claim 8, wherein, The water collecting box (6) is also provided with a recess (64), which is recessed downward relative to the water collecting groove (62) and is connected to the bottom of the recess (64).

10. The wall-hanging stove heat exchanger according to claim 1, wherein The shell (1) assembly includes a left connecting plate (13), a right connecting plate (14), and an arc plate (15) connected between the left connecting plate (13) and the right connecting plate (14), the left connecting plate (13), the right connecting plate (14), and the arc plate (15) collectively define the chamber (11), the smoke exhaust passage (12) is arranged in the right connecting plate (14), the top of the right connecting plate (14) is provided with a first exhaust passage (141), and the bottom of the right connecting plate (14) is provided with a second exhaust passage (142).

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