Burner and household appliance having the same

Abstract

The present invention relates to the field of household appliances, and in particular to a burner and a household appliance having the same. The burner comprises a main body; a gas distributor, which is installed on the main body and has a gas distributor cavity connected to an air inlet pipe and a plurality of nozzles of the burner; an isolation baffle, which can be movably arranged in the gas distributor cavity and divides the gas distributor cavity into a sealed regulating cavity and a ventilation cavity connected to the air inlet pipe, wherein the regulating cavity is connected to a high-pressure gas source, and in the ventilation cavity, the gas in the air inlet pipe can enter the nozzle corresponding to the ventilation cavity; and an elastic reset member, wherein one end of the elastic reset member cooperates with the isolation baffle and the other end cooperates with the gas distributor, and the isolation baffle moves under the combined force of the high-pressure gas expansion force in the regulating cavity and the elastic reset member, and realizes the operation of the wall-mounted boiler with different loads by working with different numbers of nozzles. Since it is not limited by the minimum gas intake, it is not easy to cause excessive water temperature when heating water, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a burner and a household appliance having the same. Background Art

[0002] A wall-mounted boiler, also known as a gas-fired heating water heater, is a household appliance that heats water through a burner to achieve dual functions of heating and sanitary hot water.

[0003] At present, when the wall-mounted boiler uses hot water in the summer, when the water supply temperature rises to about 30 degrees, the wall-mounted boiler will adjust the proportional valve that controls the air intake size to the minimum gas intake volume to heat the water, which will still make the water outlet temperature too high. Users have reported that the hot water temperature is too high in the summer, affecting the comfort of the user's shower.

[0004] At the same time, when the wall-mounted boiler is shut down and started, the proportional valve that controls the air intake will be fully opened, and a large amount of gas will enter the combustion chamber instantly. The gas heating water boiler is ignited under full load in normal working conditions. At this time, due to the large amount of air intake during ignition, it is easy to have deflagration. Especially in winter when the ambient temperature is low, it is more likely to have deflagration when the wall-mounted boiler is cold started, and in severe cases, it may even explode, leading to accidents and causing losses to the user's life and property. Summary of the invention

[0005] The main purpose of the present invention is to provide a burner and a household appliance having the same, so as to solve the problem in the prior art that when heating water, the water temperature is easily too high and the user experience is poor.

[0006] To achieve the above object, the present invention provides a burner, comprising:

[0007] main body;

[0008] An air distributor, mounted on the main body, having an air distributor cavity connected to an air inlet pipe and a plurality of nozzles of the burner;

[0009] an isolation block, movably disposed in the gas separation chamber, and dividing the gas separation chamber into a sealed regulating chamber and a ventilation chamber connected to the intake pipe, wherein the regulating chamber is connected to a high-pressure gas source, and in the ventilation chamber, the gas in the intake pipe can enter the nozzle corresponding to the ventilation chamber; and

[0010] An elastic return member, one end of which cooperates with the isolation baffle and the other end of which cooperates with the gas distributor. The isolation baffle moves under the combined drive of the expansion force of the high-pressure gas in the regulating chamber and the elastic return member to adjust the size of the ventilation chamber to adjust the number of nozzles connected to the ventilation chamber.

[0011] Furthermore, the gas separator is in the shape of an elongated strip, and the nozzles are evenly distributed in the length direction of the gas separator.

[0012] Furthermore, the burner also includes a guide rail arranged on the gas distributor, the extension direction of the guide rail is consistent with the length direction of the gas distributor, and the isolation baffle is slidably mounted on the guide rail.

[0013] Furthermore, the elastic return member is arranged in the adjustment cavity.

[0014] Furthermore, two ends of the elastic return member are fixedly connected to the isolation block and the inner wall of the adjustment cavity respectively.

[0015] Furthermore, the elastic return member is a return spring installed on one side of the air distributor.

[0016] Furthermore, the main body includes a left mounting bracket and a right mounting bracket arranged on both sides of the air distributor.

[0017] Furthermore, the isolation barrier is sealed against the inner wall of the air separation cavity.

[0018] The present invention also provides a household appliance, comprising a burner, wherein the burner is the burner as described above.

[0019] Furthermore, the household appliance is a wall-mounted boiler.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. In the burner and the household appliance provided by the present invention, by setting a gas-dividing member with a gas-dividing cavity, the expansion force of the gas-inflated expansion of the adjusting cavity and the combined force of the elastic reset member drive the isolation block to move in the gas-dividing cavity to adjust the size of the ventilation cavity, and then the number of nozzles connected to the ventilation cavity can be adjusted, and the operation of the wall-mounted boiler with different loads can be achieved by working with different numbers of nozzles. Since it is not limited by the minimum gas intake, it is not easy to cause the water temperature to be too high when heating water in summer, which improves the user experience. Compared with the method of adjusting the load of the wall-mounted boiler by adjusting the proportional valve to control the intake volume in the prior art, the burner in this embodiment can further adjust its combustion power, so that the minimum load of the wall-mounted boiler can be adjusted to be smaller, and the load adjustment range of the wall-mounted boiler is wider, which greatly improves the user experience. At the same time, when the wall-mounted boiler is working, a row of nozzles can be ignited in the ignition stage, and then the size of the ventilation cavity is adjusted to make other nozzles ventilated and ignited one after another, and the problem of deflagration when the burner is ignited can be solved, and the safety performance is better.

[0022] 2. In the burner and household appliances having the same provided by the present invention, the gas distributor in the burner is in the shape of an elongated strip, and the nozzles are evenly distributed in the length direction of the gas distributor. The corresponding fire grate is installed on the main body corresponding to the nozzles, which facilitates the arrangement of the gas distributor and the fire grate. At the same time, the evenly distributed nozzles can make the burner evenly adjust the number of nozzles when the size of the ventilation cavity is adjusted. That is to say, the size adjustment of the wall-mounted boiler load is more stable and continuous, further improving the user experience.

[0023] 3. In the burner and household appliance having the same provided by the present invention, the burner also includes a guide rail arranged on the gas distributor, the extension direction of the guide rail is consistent with the length direction of the gas distributor, and the isolation baffle can be slidably installed on the guide rail, so that the isolation baffle is guided by the guide rail during movement, and its movement process is smoother, the load adjustment of the wall-mounted boiler is more stable, and the user experience is better.

[0024] 4. In the burner and the household appliance having the same provided by the present invention, the elastic return member is arranged in the regulating cavity of the gas distributor, so that the elastic return member can be separated from the air inlet pipe and the gas phase, and the safety of the elastic return member during operation is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0026] Figure 1 It is a schematic diagram of the main structure of the wall-mounted boiler in an embodiment of the present invention.

[0027] Figure 2 for Figure 1 The three-dimensional structural schematic diagram of the burner in the wall-mounted boiler is shown.

[0028] Among them, the reference numerals in the above drawings are:

[0029] 1. Wind pressure switch; 3. Main heat exchanger; 4. Ignition needle; 5. Fire detection needle; 6. Burner; 7. Water pump; 12. Gas pipe; 13. Plate heat exchanger; 17. Proportional valve; 19. Fan; 20. Air pump; 32. Fire grate; 33. Nozzle; 34. Right mounting bracket; 35. Inlet pipe; 36. Guide rail; 37. Isolation block; 38. Reset spring; 39. Air distributor; 40. Left mounting bracket; 41. Air pipe. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] The burner 6 according to this embodiment is applied to a wall-mounted boiler to heat water flowing through the wall-mounted boiler.

[0033] like Figure 1 and Figure 2As shown, the burner 6 in this embodiment specifically includes a main body; an air distributor 39, which is installed on the main body and has an air distributor cavity connected to a plurality of nozzles 33 of the burner 6 and an air inlet pipe 35; an isolating baffle 37, which is movably arranged in the air distributor cavity, and divides the air distributor cavity into a sealed regulating cavity and a ventilation cavity connected to the air inlet pipe 35, the regulating ball is connected to the high-pressure gas source, and in the ventilation cavity, the fuel gas in the air inlet pipe 35 can enter the nozzle 33 corresponding to the ventilation cavity; and an elastic reset member, one end of the elastic reset member cooperates with the isolating baffle 37, and the other end cooperates with the air distributor 39, and the isolating baffle 37 moves to adjust the size of the ventilation cavity under the combined drive of the expansion force of the high-pressure gas in the regulating cavity and the elastic reset member, so as to adjust the number of nozzles 33 connected to the ventilation cavity. Then, the burner 6 in this embodiment is adopted, and the gas distributor 39 with a gas distribution cavity is provided. The expansion force of the gas expansion cavity and the combined force of the elastic reset member drive the isolation block 37 to move in the gas distribution cavity to adjust the size of the ventilation cavity, and then the number of nozzles 33 connected to the ventilation cavity can be adjusted. The work of the wall-mounted boiler with different loads can be realized by working with different numbers of nozzles 33. Since it is not limited by the minimum gas intake, it is not easy to cause the water temperature to be too high when heating water in summer, which improves the user experience. Compared with the method of adjusting the load of the wall-mounted boiler by adjusting the proportional valve 17 to control the intake volume in the prior art, the burner 6 in this embodiment can further adjust its combustion power, so that the minimum load of the wall-mounted boiler can be adjusted smaller, and the load adjustment range of the wall-mounted boiler is wider, which greatly improves the user experience. At the same time, when the wall-mounted boiler is working, a row of nozzles 33 can be ignited in the ignition stage, and then the size of the ventilation cavity is adjusted to make the other nozzles 33 ventilated and ignited one after another, and the problem of deflagration when the burner 6 is ignited can be solved, and the safety performance is better.

[0034] See also Figure 1 The burner 6 in this embodiment is specifically used in a wall-mounted boiler. The gas pipe 12 of the wall-mounted boiler is connected to the proportional valve 17, which is connected to the air inlet pipe 35 of the burner 6 through the proportional valve 17. The proportional valve 17 can control the opening and closing of the gas and the size of the gas flow. A fire detection needle 5 and an ignition needle 4 are installed above the fire row 32 of the burner 6 on the gas inlet side, which are used for ignition and detection of whether the ignition is successful. The main heat exchanger 3 in the wall-mounted boiler is used to absorb the heat after the gas combustion to heat the water flowing through the main heat exchanger 3. The water pump 7 in the wall-mounted boiler provides the power for water circulation, and the fan 19 provides the air required for combustion and removes the smoke after combustion. The wind pressure switch 1 in the wall-mounted boiler is used to detect whether the smoke channel is normal, the heating water outlet temperature sensor in the wall-mounted boiler is used to detect the heating water outlet temperature, and the three-way motor is used to switch between domestic hot water and heating water. The plate heat exchanger 13 in the wall-mounted boiler is used to heat domestic hot water, and the domestic hot water temperature sensor is used to detect the hot water outlet temperature.

[0035] See also Figure 2The burner 6 in this embodiment further includes an air pipe 41, which is installed on the gas distributor 39 and communicates with the air pump 20 and the regulating chamber respectively, so that the high-pressure gas source in the air pump 20 can be introduced into the regulating chamber. The regulating chamber adjusts the isolation block 37 under the combined force of the expansion force of the high-pressure gas pumped by the air pump 20 and the elastic reset force of the elastic reset member. By controlling the opening and closing of the air pump 20 and the size of the opening and closing, the position of the isolation block 37 can be conveniently and effectively adjusted.

[0036] See also Figure 2 Specifically, the gas distributor 39 in the burner 6 of this embodiment is in the shape of an elongated strip, and the nozzles 33 are evenly distributed in the length direction of the gas distributor 39. The corresponding fire bars 32 are installed on the main body, corresponding to the nozzles 33. This facilitates the arrangement of the gas distributor 39 and the fire bars 32. At the same time, the evenly distributed nozzles 33 enable the burner 6 to evenly adjust the number of nozzles 33 when the size of the ventilation cavity is changed. That is to say, the size adjustment of the wall-mounted boiler load is more stable and continuous, further improving the user experience.

[0037] See also Figure 2 The burner 6 in this embodiment also includes a guide rail 36 arranged on the gas distributor 39. The extension direction of the guide rail 36 is consistent with the length direction of the gas distributor 39. The isolation baffle 37 can be slidably installed on the guide rail 36, and then the isolation baffle 37 is guided by the guide rail 36 during the movement, and its movement process is smoother, the load adjustment of the wall-mounted boiler is more stable, and the user experience is better.

[0038] As for the elastic reset member used to realize the movement of the isolation block 37 in this embodiment, the elastic reset member is arranged in the regulating chamber of the gas separator 39 in this embodiment, so that the elastic reset member can be separated from the air inlet pipe 35 and the gas, and the safety of the elastic reset member during operation is better. The two ends of the elastic reset member are fixedly connected to the isolation block 37 and the inner wall of the regulating chamber respectively.

[0039] Specifically, the elastic return member in this embodiment is a return spring 38 installed on one side of the gas distributor 39. The movement of the isolation baffle 37 is controlled by the joint action of the return spring 38 and the expansion force in the adjustment chamber, and the size of the ventilation chamber is adjusted, thereby controlling the number of working nozzles 33 and realizing the adjustment of different combustion powers of the burner 6.

[0040] See also Figure 2 The main body in this embodiment includes a left mounting bracket 40 and a right mounting bracket 34 arranged on both sides of the gas distributor 39. The gas distributor 39 can be installed on the main body of the wall-mounted boiler through the left mounting bracket 40 and the right mounting bracket 34 to ensure the reliability of the burner 6 when working.

[0041] Preferably, the isolation barrier 37 in this embodiment is sealed against the inner wall of the air dividing chamber. For example, a sealing ring can be added between the isolation barrier 37 and the inner wall of the air dividing chamber, so that the isolation barrier 37 can reliably seal the adjustment chamber and the ventilation chamber, and the reliability of the burner 6 during operation is better.

[0042] This embodiment also provides a household appliance, including a burner 6, the burner 6 is the burner 6 described above, and the advantages of the burner 6 in this embodiment should also be possessed by the household appliance in this embodiment, which will not be repeated here. The household appliance in this embodiment is a household appliance such as a wall-mounted boiler, a gas stove, etc. that uses the burner 6.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A burner, characterized in that: include: main body; An air distributor (39) is installed on the main body and has an air distributor cavity connected to an air inlet pipe (35) of the burner (6) and a plurality of nozzles (33); an isolation block (37) movably disposed in the gas separation chamber and dividing the gas separation chamber into a sealed regulating chamber and a ventilation chamber connected to the gas inlet pipe (35); the regulating chamber is connected to a high-pressure gas source, and in the ventilation chamber, the gas in the gas inlet pipe (35) can enter the nozzle (33) corresponding to the ventilation chamber; as well as an elastic return member, one end of which cooperates with the isolation stopper (37) and the other end of which cooperates with the gas distributor (39); the isolation stopper (37) moves under the driving force of the expansion force of the high-pressure gas in the regulating chamber and the combined force of the elastic return member to adjust the size of the ventilation chamber, so as to adjust the number of nozzles (33) connected to the ventilation chamber; An air pipe (41), the air pipe (41) is installed on the gas distributor (39) and is connected to the regulating chamber through the air pump (20), so that the high-pressure gas source in the air pump (20) can be introduced into the regulating chamber, and the regulating chamber can adjust the isolation block (37) under the combined force of the expansion force of the high-pressure gas pumped by the air pump (20) and the elastic restoring force of the elastic restoring member; When the burner is working, the size of the ventilation cavity can be adjusted during the ignition stage to allow the nozzles (33) to be ventilated and ignited successively.

2. The burner according to claim 1, characterized in that: The gas distributor (39) is in the shape of an elongated strip, and the nozzles (33) are evenly distributed in the length direction of the gas distributor (39).

3. The burner according to claim 2, characterized in that: The burner (6) further comprises a guide rail (36) arranged on the gas distributor (39), the extension direction of the guide rail (36) is consistent with the length direction of the gas distributor (39), and the isolation baffle (37) is slidably mounted on the guide rail (36).

4. The burner according to claim 1, characterized in that: The elastic return member is arranged in the adjustment cavity.

5. The burner according to claim 4, characterized in that: Two ends of the elastic return member are respectively fixedly connected to the isolation stopper (37) and the inner wall of the adjustment cavity.

6. The burner according to claim 1, characterized in that: The elastic return element is a return spring (38) installed on one side of the air distributor (39).

7. The burner according to any one of claims 1 to 6, characterized in that: The main body comprises a left mounting bracket (40) and a right mounting bracket (34) which are arranged on both sides of the gas distributor (39).

8. The burner according to any one of claims 1 to 6, characterized in that: The isolation stopper (37) is sealingly pressed against the inner wall of the air separation cavity.

9. A household appliance, comprising a burner (6), characterized in that: The burner (6) is the burner according to any one of claims 1 to 8.

10. The household appliance according to claim 9, characterized in that: The household appliance is a wall-mounted boiler.

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