Wall-hanging stove with function of reducing condensation phenomenon of main heat exchanger

Abstract

The utility model relates to the technical field of wall-hanging stoves, and discloses a wall-hanging stove with a function of reducing the condensation phenomenon of a main heat exchanger, which comprises a wall-hanging stove main shell, a negative pressure combustion chamber is arranged in the wall-hanging stove main shell, and a heat exchanger cover is arranged in the negative pressure combustion chamber. The threaded column is driven by the motor to rotate, the main pipe body is moved under the threaded fit of the threaded column and the threaded ring, and impurities on the burner are subjected to air jet cleaning through the fit of the main pipe body, the U-shaped air guide pipe, the L-shaped connecting pipe, the air nozzle and the air guide hose. And meanwhile, impurities on the combustor are physically cleaned through the rotating sleeve and the steel wire brush, so that a nozzle of the combustor is prevented from being blocked by the impurities, and the risk of moisture condensation of the main heat exchanger is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wall-mounted boilers, in particular to a wall-mounted boiler with the function of reducing condensation of a main heat exchanger. Background Art

[0002] A wall-mounted boiler, also known as a gas wall-mounted heating boiler, is a household heating device that uses gas as energy and has dual-mode functions. It can simultaneously meet the needs of household heating and hot water supply. The burner of the wall-mounted boiler will produce some impurities and carbon deposits during the combustion process of gas. These impurities and carbon deposits can easily accumulate and clog the burner nozzle.

[0003] The wall-mounted boilers currently on the market lack cleaning mechanisms inside and cannot clean the burner nozzles that are clogged by impurities, which will affect the normal injection and combustion of the gas, thereby reducing the combustion effect and causing incomplete combustion of the gas, and increasing the content of impurities and water vapor in the flue gas. The impurities will enter the main heat exchanger with the flue gas and deposit on its surface, reducing the heat exchange efficiency. Water vapor will easily condense into water droplets on the surface of the heat exchanger, increasing the risk of condensation on the main heat exchanger.

[0004] Therefore, we proposed a wall-mounted boiler with the function of reducing condensation in the main heat exchanger in order to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the current wall-mounted boiler lacks a cleaning mechanism inside and cannot clean the burner nozzle blocked by impurities, which will affect the normal injection and combustion of the gas, thereby reducing the combustion effect and causing incomplete combustion of the gas, increasing the content of impurities and water vapor in the flue gas, and the impurities will enter the main heat exchanger with the flue gas and deposit on its surface, reducing the heat exchange efficiency. The water vapor will easily condense into water droplets on the surface of the heat exchanger, increasing the risk of condensation in the main heat exchanger.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wall-mounted boiler with the function of reducing condensation phenomenon of the main heat exchanger, comprising a main shell of the wall-mounted boiler, a negative pressure combustion chamber is arranged in the main shell of the wall-mounted boiler, a heat exchanger cover is arranged in the negative pressure combustion chamber, a burner and a main heat exchanger are arranged in the heat exchanger cover, a support plate is arranged near the top of the inner wall of the heat exchanger cover, a fan is installed on the support plate, a balanced flue is arranged on the top of the main shell of the wall-mounted boiler, an annular hidden groove is arranged on the side of the heat exchanger cover, and a main pipe is arranged in the heat exchanger cover, a U-shaped air guide pipe is connected to the main pipe, a plurality of L-shaped connecting pipes are arranged on the U-shaped air guide pipe, and one end of the L-shaped connecting pipe is arranged There is an air nozzle, an air guide hose located in an annular hidden groove is arranged near one end of the surface of the main pipe body, and a sleeve is arranged on the main pipe body, a wire brush is arranged on the surface of the sleeve, a threaded column and a limit rod are symmetrically arranged in the annular hidden groove, a motor connected to the threaded column is arranged on the side of the annular hidden groove, and a sealing bearing matched with the threaded column is arranged on the annular hidden groove, a threaded ring and a limit ring are respectively arranged at both ends of the main pipe body, the threaded ring is threadedly connected to the threaded column, the limit ring is slidably connected to the limit rod, gears are symmetrically arranged on the surface of the sleeve near both ends, and tooth plates are symmetrically arranged on the inner wall of the heat exchanger cover near the annular hidden groove, and the tooth plates are meshed with gears.

[0007] Furthermore, the balanced flue includes an outlet pipe and an inlet pipe, the outlet pipe is sleeved inside the inlet pipe, and the outlet pipe passes through the heat exchanger cover and is connected to the fan, the inlet pipe is connected to the negative pressure combustion chamber, and an annular dust filter is provided at one end of the inlet pipe.

[0008] Furthermore, an inclined ash discharge pipe is provided at the bottom of the negative pressure combustion chamber, and a sealing cap is threadedly connected to one end of the inclined ash discharge pipe.

[0009] Furthermore, the bottom of the negative pressure combustion chamber is configured as an inverted bucket structure.

[0010] Furthermore, a sealing rubber gasket is arranged inside the sealing cover.

[0011] Furthermore, a plurality of evenly distributed balls are arranged around the inner wall of the sleeve, and the balls are in contact with the main pipe body.

[0012] The beneficial effects of the utility model are as follows: the threaded column is driven to rotate by a motor, and the main pipe body is moved under the cooperation of the threads of the threaded column and the threaded ring. The impurities on the burner are cleaned by air jet through the cooperation of the main pipe body, the U-shaped air guide pipe, the L-shaped connecting pipe, the air nozzle and the air guide hose. At the same time, the impurities on the burner are physically cleaned by the rotating sleeve and the wire brush, thereby preventing the burner nozzle from being blocked by impurities and reducing the risk of condensation on the main heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a wall-mounted boiler with the function of reducing condensation phenomenon of the main heat exchanger of the utility model;

[0014] Figure 2 It is a schematic cross-sectional view of the wall-mounted boiler of the utility model which has the function of reducing the condensation phenomenon of the main heat exchanger;

[0015] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure A;

[0016] Figure 4 This is a schematic diagram of the first part of the structure of the wall-mounted boiler with the function of reducing condensation of the main heat exchanger of the utility model;

[0017] Figure 5 This is a schematic diagram of the second part of the structure of the wall-mounted boiler with the function of reducing condensation of the main heat exchanger of the utility model;

[0018] Figure 6 It is a schematic diagram of the third part of the structure of the wall-mounted boiler of the utility model which has the function of reducing the condensation phenomenon of the main heat exchanger.

[0019] The names corresponding to the marks in the figure are:

[0020] 1. Wall-mounted boiler main shell; 2. Negative pressure combustion chamber; 3. Heat exchanger cover; 4. Burner; 5. Main heat exchanger; 6. Support plate; 7. Fan; 8. Balanced flue; 81. Exhaust pipe; 82. Inlet pipe; 9. Annular hidden groove; 10. Main body; 11. U-shaped air duct; 12. L-shaped connecting pipe; 13. Jet nozzle; 14. Air duct hose; 15. Sleeve; 16. Wire brush; 17. Threaded column; 18. Limit rod; 19. Motor; 20. Sealed bearing; 21. Threaded ring; 22. Limit ring; 23. Gear; 24. Tooth plate; 25. Annular dust filter; 26. Inclined ash discharge pipe; 27. Cover; 28. Sealing rubber gasket; 29. ​​Ball. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] Embodiments of the present utility model:

[0023] Embodiment 1

[0024] like Figure 1-Figure 6 As shown, the utility model provides a wall-mounted boiler with the function of reducing condensation of the main heat exchanger, including a wall-mounted boiler main shell 1, a negative pressure combustion chamber 2 is arranged in the wall-mounted boiler main shell 1, a heat exchanger cover 3 is arranged in the negative pressure combustion chamber 2, a burner 4 and a main heat exchanger 5 are arranged in the heat exchanger cover 3, a support plate 6 is arranged near the top of the inner wall of the heat exchanger cover 3, a fan 7 is installed on the support plate 6, a balanced flue 8 is arranged on the top of the wall-mounted boiler main shell 1, an annular hidden groove 9 is arranged on the side of the heat exchanger cover 3, and the heat exchanger cover 3 A main body 10 is arranged inside, a U-shaped air guide tube 11 is connected to the main body 10, a plurality of L-shaped connecting tubes 12 are arranged on the U-shaped air guide tube 11, an air nozzle 13 is arranged at one end of the L-shaped connecting tube 12, an air guide hose 14 located in the annular hidden groove 9 is arranged near one end of the surface of the main body 10, and a sleeve 15 is sleeved on the main body 10, a wire brush 16 is arranged on the surface of the sleeve 15, a threaded column 17 and a limit rod 18 are symmetrically arranged in the annular hidden groove 9, and a side of the annular hidden groove 9 is provided with a screw threaded column 17 connected to the screw threaded column 17. The motor 19 is provided with a sealed bearing 20 matched with the threaded column 17 on the annular hidden groove 9, and a threaded ring 21 and a limit ring 22 are provided at both ends of the main pipe body 10 respectively, the threaded ring 21 is threadedly connected with the threaded column 17, the limit ring 22 is slidably connected with the limit rod 18, the surface of the sleeve 15 is symmetrically provided with gears 23 near both ends, the inner wall of the heat exchanger cover 3 is symmetrically provided with toothed plates 24 near the annular hidden groove 9, the toothed plates 24 are meshed with the gears 23, one end of the air guide hose 14 is connected with an external air pump, and can The starting motor 19 drives the threaded column 17 to rotate, and the main body 10 is moved and moved out of the annular hidden groove 9 under the cooperation of the thread, and the impurities on the burner 4 are cleaned by spraying air through the air nozzle 13. While the main body 10 moves, the sleeve 15 drives the wire brush 16 to rotate under the cooperation of the tooth plate 24 and the gear 23, and the impurities on the burner 4 are cleaned. With the cooperation of the two cleaning methods, the impurities on the burner 4 are physically cleaned, thereby preventing the burner 4 nozzle from being blocked by impurities.

[0025] Embodiment 2

[0026] like Figure 1-Figure 6 As shown, on the basis of the first embodiment of the utility model: the balanced flue 8 includes an outlet pipe 81 and an inlet pipe 82, the outlet pipe 81 is sleeved inside the inlet pipe 82, and the outlet pipe 81 passes through the heat exchanger cover 3 and is connected to the fan 7, the inlet pipe 82 is connected to the negative pressure combustion chamber 2, and one end of the inlet pipe 82 is provided with an annular dust filter 25, through such a setting, the air entering the negative pressure combustion chamber 2 can be filtered to prevent the entry of impurities and dust, and the bottom of the negative pressure combustion chamber 2 is provided with an inclined exhaust An ash pipe 26, one end of the inclined ash discharge pipe 26 is threadedly connected to a cover 27, and a sealing rubber gasket 28 is arranged in the cover 27. Through such an arrangement, impurities falling into the bottom of the negative pressure combustion chamber 2 can be discharged. The bottom of the negative pressure combustion chamber 2 is arranged as an inverted bucket structure. Through such an arrangement, it is convenient to discharge impurities. A plurality of evenly distributed balls 29 are arranged around the inner wall of the sleeve 15, and the balls 29 are in contact with the main pipe body 10. Through such an arrangement, friction can be reduced and the rotation of the sleeve 15 is convenient.

Claims

1. A wall-mounted boiler with a function of reducing condensation of a main heat exchanger, comprising a wall-mounted boiler main shell (1), a negative pressure combustion chamber (2) being arranged in the wall-mounted boiler main shell (1), a heat exchanger cover (3) being arranged in the negative pressure combustion chamber (2), a burner (4) and a main heat exchanger (5) being arranged in the heat exchanger cover (3), a support plate (6) being arranged near the top of the inner side wall of the heat exchanger cover (3), a fan (7) being mounted on the support plate (6), a balanced flue (8) being arranged at the top of the wall-mounted boiler main shell (1), and characterized in that: The heat exchanger cover (3) is provided with an annular hidden groove (9) on the side, and a main pipe (10) is provided in the heat exchanger cover (3), the main pipe (10) is connected with a U-shaped air guide pipe (11), the U-shaped air guide pipe (11) is provided with a plurality of L-shaped connecting pipes (12), one end of the L-shaped connecting pipe (12) is provided with an air nozzle (13), a position near one end of the surface of the main pipe (10) is provided with an air guide hose (14) located in the annular hidden groove (9), and a sleeve (15) is sleeved on the main pipe (10), a wire brush (16) is provided on the surface of the sleeve (15), and a threaded column (17) and a limit rod (16) are symmetrically provided in the annular hidden groove (9). 8), a motor (19) connected to the threaded column (17) is arranged on the side of the annular hidden groove (9), and a sealing bearing (20) matched with the threaded column (17) is arranged on the annular hidden groove (9), and a threaded ring (21) and a limit ring (22) are respectively arranged at both ends of the main pipe body (10), the threaded ring (21) is threadedly connected to the threaded column (17), and the limit ring (22) is slidably connected to the limit rod (18), gears (23) are symmetrically arranged at positions near both ends of the surface of the sleeve (15), and tooth plates (24) are symmetrically arranged at positions near the annular hidden groove (9) on the inner wall of the heat exchanger cover (3), and the tooth plates (24) are meshed with the gears (23).

2. The wall-mounted boiler with the function of reducing condensation of the main heat exchanger according to claim 1 is characterized in that: The balanced flue (8) comprises an air outlet pipe (81) and an air inlet pipe (82), wherein the air outlet pipe (81) is sleeved inside the air inlet pipe (82), and the air outlet pipe (81) passes through the heat exchanger cover (3) and is connected to the fan (7), the air inlet pipe (82) is connected to the negative pressure combustion chamber (2), and an annular dust filter (25) is provided at one end of the air inlet pipe (82).

3. The wall-mounted boiler with the function of reducing condensation of the main heat exchanger according to claim 1 is characterized in that: An inclined ash discharge pipe (26) is provided at the bottom of the negative pressure combustion chamber (2), and a sealing cover (27) is threadedly connected to one end of the inclined ash discharge pipe (26).

4. The wall-mounted boiler with the function of reducing condensation of the main heat exchanger according to claim 1 is characterized in that: The bottom of the negative pressure combustion chamber (2) is arranged as an inverted bucket structure.

5. The wall-mounted boiler with the function of reducing condensation of the main heat exchanger according to claim 3 is characterized in that: A sealing rubber gasket (28) is arranged inside the sealing cover (27).

6. The wall-mounted boiler with the function of reducing condensation of the main heat exchanger according to claim 1 is characterized in that: A plurality of evenly distributed balls (29) are arranged around the inner wall of the sleeve (15), and the balls (29) are in contact with the main pipe (10).

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