Burner, water heating apparatus comprising a burner, and method for controlling a burner

Abstract

A burner includes a fuel supply part that supplies fuel to a combustion chamber, an air supply part that includes a blower that blows air to the combustion chamber according to rotation of the blower and an air supply duct connected to the blower so that air is delivered to the blower from the outside, an ignition part that generates a spark so that the supplied fuel and air are ignited, a pressure acquisition part connected to the air supply duct so that a pressure of the air supplied to the air supply part is acquired, and a processor electrically connected to the air supply part and the pressure acquisition part and controlling the blower so that a speed of the rotation of the blower is increased when a pressure value acquired by the pressure acquisition part is less than a predetermined reference pressure value.

Description

TECHNICAL FIELD

[0001] The disclosure relates to a burner, a water heating apparatus including the burner, and a method for controlling the burner. BACKGROUND

[0002] A water heating apparatus is an apparatus that heats a fluid. The fluid can be water. The water heating apparatus can heat a desired area by discharging heated water to a demand source or delivering heated water to a passage for heating. The water heating apparatus for heating can be a boiler.

[0003] Therefore, in order to heat water in the water heating apparatus, the water heating apparatus generally has a structure that can cause a combustion reaction by using a burner to generate a flame and combustion gas, and can heat water by using heat transferred from the flame and heat transferred from the combustion gas.

[0004] The burner generates an electric spark in air and fuel, causing a combustion reaction. Therefore, it is necessary to supply air and fuel to the burner, and the water heating apparatus must discharge combustion gas generated by the combustion reaction through a duct.

[0005] When a conduit connected to the water heating apparatus is formed long in the up / down direction, and a negative pressure is formed in the conduit, the speed of combustion gas discharge can become higher, and a lift phenomenon in which a flame is not normally formed in the burner can occur. Because, in the case of a burner for a heavy boiler, control by simply providing or not supplying air while providing or not providing fuel only is possible, it is difficult to cope with the lift phenomenon when this phenomenon occurs.

[0006] In addition, when the conduit is long, an explosive ignition can be induced due to a resistance corresponding to the length of the conduit being generated, and the conduit can be torn or can be deviated from a proper position due to the explosive ignition. SUMMARY

[0007] The disclosure aims to solve the above-described problems occurring in the related art while maintaining the advantages achieved by the related art unchanged.

[0008] One aspect of the disclosure provides a burner in which stable combustion corresponding to a load of a mounting environment can occur, a water heating apparatus including the burner, and a method for controlling the burner.

[0009] The technical problems to be solved by the disclosure are not limited to the above-mentioned problems, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art to which the disclosure belongs from the following description.

[0010] According to one embodiment of the present disclosure, a burner includes a fuel providing part that provides fuel for a combustion reaction to a combustion chamber, an air providing part that includes a blower that blows air for the combustion reaction to the combustion chamber according to rotation of the blower and an air supply duct connected to the blower so that the air is delivered to the blower from the outside, an ignition part that generates a spark so that the provided fuel and air are ignited, a pressure obtaining part connected to the air supply duct so that a pressure of the air provided to the air providing part is obtained, and a processor electrically connected to the air providing part and the pressure obtaining part and controlling the blower so that a speed of the rotation of the blower is increased when a pressure value obtained by the pressure obtaining part is less than a predetermined reference pressure value.

[0011] According to another embodiment of the present disclosure, a water heating apparatus includes a combustion chamber that causes a combustion reaction, a burner, and a heat exchanger that receives combustion gas generated by the combustion reaction and exchanges heat with water, the burner including a fuel providing part that provides fuel to the combustion chamber, an air providing part that includes a blower that blows air to the combustion chamber according to rotation of the blower and an air supply duct connected to the blower so that the air is delivered to the blower from the outside, an ignition part that generates a spark so that the provided fuel and air are ignited, a pressure obtaining part connected to the air supply duct so that a pressure of the air provided to the air providing part is obtained, and a processor electrically connected to the air providing part and the pressure obtaining part and controlling a speed of the rotation of the blower based on a pressure value obtained by the pressure obtaining part and a predetermined reference pressure value.

[0012] According to another embodiment of the present disclosure, a method for controlling a burner includes obtaining a pressure of air provided to a burner including a blower, comparing the obtained pressure value with a predetermined reference pressure value, and increasing a speed of the rotation of the blower that affects the pressure of the air provided to the burner when the obtained pressure value is less than the reference pressure value. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0014] Figure 1 is a perspective view showing a burner of a water heating apparatus according to an embodiment of the present disclosure and parts adjacent to the burner;

[0015] Figure 2is a perspective view of a burner of a water heating apparatus according to an embodiment of the disclosure;

[0016] Figure 3 is a perspective view showing a rotating part of a blower according to an embodiment of the disclosure;

[0017] Figure 4 is a conceptual view of a water heating apparatus according to an embodiment of the disclosure;

[0018] Figure 5 is a view showing a fuel valve of a burner according to an embodiment of the disclosure;

[0019] Figure 6 is a view showing Figure 5 a part of the fuel valve of

[0020] Figure 7 is a view showing Figure 5 a feedback port, a fuel chamber, and a valve port of the fuel valve of DETAILED DESCRIPTION

[0021] Hereinafter, some embodiments of the disclosure will be described in detail with reference to the exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that even when the same or equivalent components are shown on other drawings, the same reference numerals are designated to the same or equivalent components. Also, in describing embodiments of the disclosure, detailed descriptions of related known configurations or functions will be omitted when it is determined that the understanding of the embodiments of the disclosure is disturbed by the detailed descriptions.

[0022] In describing components according to embodiments of the disclosure, terms such as first, second, A, B, (a), (b), etc. can be used. These terms are only intended to distinguish between the components from other components, and the terms do not limit the nature, order or sequence of the components. Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0023] Figure 1 is a perspective view showing a burner 10 of a water heating apparatus 1 according to an embodiment of the disclosure and components adjacent to the burner 10. Figure 2 is a perspective view of a burner 10 of a water heating apparatus 1 according to an embodiment of the disclosure.

[0024] Referring to the drawings, a water heating apparatus 1 according to an embodiment of the disclosure includes a combustion chamber 20 and a burner 10. In the specification and drawings of the disclosure, left / right directions and front / back directions are directions perpendicular to upward / downward directions, and are relative directions used for convenience of description, and can become different according to a posture of the water heating apparatus 1.

[0025] The water heating apparatus 1 can include the combustion chamber 20, the burner 10, and a heat exchanger (not shown). The burner 10 can be coupled to one side surface of the combustion chamber 20, and a portion of the burner 10 can be inserted into the combustion chamber 20. The burner 10 can be coupled to the combustion chamber 20 in a horizontal direction. As shown in the drawings, the burner 10 can be coupled to the combustion chamber 20 from a rear surface of the combustion chamber 20 toward a front side, but the side surface to which the burner 10 is coupled and the direction along which the burner 10 is coupled are not limited thereto.

[0026] When a flame is formed at a portion of the burner 10 that is inserted into the combustion chamber 20 and a combustion reaction is performed, combustion gas is generated, the combustion gas is delivered from the combustion chamber 20 to the heat exchanger, and heat-exchanged with water flowing in the heat exchanger to heat the water. The water heated in the heat exchanger can be provided for heating or can be provided as hot water.

[0027] The burner 10 can be a gun-type burner 10. The gun-type burner is a burner in which a configuration for providing air, a configuration for providing fuel, and a configuration for ignition are all integrated in one unit.

[0028] The burner 10 can include fuel providing parts 12, 15, 17, and 18, air providing parts 13 and 14, an ignition part 19, a pressure obtaining part 16, and a processor.

[0029] The ignition part 19

[0030] The ignition part 19 is configured to generate a spark, thereby igniting the provided fuel and air. A distal end of the ignition part 19 that is inserted into the combustion chamber 20 can generate a spark, and the ignition part 19 can pass through an opening of the mixer 13, which will be described below, so that the ignition inner end, that is, the distal end of the ignition part 19 is disposed in the combustion chamber, which is an inner space of the combustion chamber 20. Although it has been described in the embodiment of the disclosure that the ignition part 19 is a spark plug, a device that performs ignition in a method other than a spark plug can be used as the ignition part 19.

[0031] The ignition part 19 can cause an electric spark to ignite a mixture of fuel and air. When an electric spark is generated in a case where air and fuel injected by the fuel providing parts 12, 15, 17, and 18 move to form a mixture via the mixer 113, a flame can be formed.

[0032] The inner ignition end of the ignition part 19, that is, the distal end thereof in the reference direction, can be disposed adjacent to the fuel nozzles 12 of the fuel supply parts 12, 15, 17, and 18.

[0033] The housing 11

[0034] The burner 10 according to an embodiment of the disclosure can include a housing 11. The housing 11 is a part of a frame of the burner 10, and can include a blower duct 112, a mixer 113, and a frame 111.

[0035] The frame 111 is a part that connects the blower duct 112 and the air supply parts 13 and 14, and parts to be described below can be coupled to each other to be supported by the frame 111. The inside of the frame 111 is empty, and can deliver air supplied by the air supply parts 13 and 14 to the blower duct 112.

[0036] The blower duct 112 is a part that surrounds a part of the fuel nozzles 12 and the ignition part 19 inserted inside the combustion chamber 20 and is connected to the air supply parts 13 and 14. The blower duct 112 can have an inner space in which air pumped by the air supply parts 13 and 14 flows and a discharge opening that is an opening toward the combustion space opening along the reference direction. The air pumped by the air supply parts 13 and 14 can be discharged to the combustion space through the discharge opening, and can be mixed with the fuel to meet the spark and form a flame. The mixer 113 can be located in the discharge opening, and at least a part of the discharge opening can be covered by the mixer 113.

[0037] The blower duct 112 can have a cylindrical outer shape that is open along the reference direction. The blower duct 112 can be coupled to the combustion chamber 20.

[0038] The mixer 113 is an element disposed to smoothly form a flame. The mixer 113 can allow the fuel injected by the fuel supply parts 12, 15, 17, and 18 to be mixed together with the air provided by the air supply parts 13 and 14 to reach the combustion space.

[0039] The mixer 113 can have a plurality of mixing parts to sufficiently mix the fuel and the air. The mixing parts can be disposed at positions corresponding to positions of the plurality of fuel nozzles 12. The plurality of mixing parts can be disposed while surrounding a center circle along a circumferential direction. The mixing parts can be provided with mixing channels that are open in the forward / backward direction. Accordingly, the fuel and the air injected by the fuel nozzles can be mixed through the mixing channels and can be discharged to the combustion space. The plurality of mixing parts can be coupled to each other to define an annular structure.

[0040] The air supply parts 13 and 14

[0041] Figure 3 FIG. 9 is a perspective view illustrating a rotating part 132 of a blower 13 according to an embodiment of the disclosure.

[0042] The air providing parts 13 and 14 are parts for pumping air supplied from the outside to the combustion chamber 20. Accordingly, the air providing parts 13 and 14 can include the blower 13, and an air supply duct 14 for delivering air to the blower 13.

[0043] The blower 13 is a device for blowing air for a combustion reaction toward the combustion chamber 20 according to rotation of the combustion chamber 20. The blower 13 can include a vane part 131 that pumps air to the blower duct 112 while rotating, and a rotating part 132 that generates a rotational driving force so that the vane part 131 rotates and transmits the rotational driving force to the vane part 131. The vane part 131 can be an impeller with a housing. The rotating part 132 can be a brushless DC (BLDC) motor. Accordingly, according to control of a processor, precise speed control of the rotating part 132 can be achieved. The vane part 131 can be disposed to be rotatable while taking a left / right direction as an axial direction thereof, and the rotating part 132, as illustrated, can be coupled to a right side of the vane part 131.

[0044] The air providing parts 13 and 14 can be controlled so that air is pumped to the blower duct 112 at a plurality of different wind speeds. The processor can perform control by providing different sizes of current to the rotating part 132 so that the rotating part 132 operates at various speeds. In a low phase, the processor can provide a predetermined low-level current to the rotating part 132, and in a high phase, the processor can provide a high-level current higher than the low-level current to the rotating part 132. The processor can control the air providing parts 13 and 14 so that the blower motor 223 operates in the low phase at the time of ignition, and operates in the high phase after the ignition.

[0045] The low phase refers to a phase in which the blower motor 13 rotates at a low phase speed, thereby providing air at a low phase wind speed of a predetermined wind speed. The low phase speed can be determined by a low phase air ratio of the burner 10 or generated heat. The high phase refers to a phase in which the rotating part 132 rotates at a high phase speed higher than the low phase speed, thereby providing air at a high phase wind speed higher than the low phase wind speed.

[0046] The air supply duct 14 is a duct connected to the blower 13 so as to deliver air from the outside to the blower 13. As shown in the drawing, the air supply duct 14 can be connected to the left side of the vane part 131 opposite to the rotating part 132 with respect to the vane part 131, and can deliver air to the rotating part 132. The air supply duct 14 can include a connection duct 141 connected to the rotating part 132 and extending downward from the right side of the blower 13, and an outer duct 142 extending rightward from the lower end of the connection duct 141. The connection duct 141 and the outer duct 142 can be fixed to each other.

[0047] The pressure acquisition part 16

[0048] The pressure acquisition part 16 is a part connected to the air supply duct 14 for acquiring the pressure of air supplied to the air supply parts 13 and 14. The pressure acquisition part 16 can be an atmospheric pressure sensor (APS), but its kind is not limited thereto. The pressure acquisition part 16 can be connected to the outer duct 142 to acquire the pressure of air passing through the outer duct 142 and delivered from the outside to the blower 13. The pressure acquisition part 16 can deliver the acquired pressure to the processor.

[0049] The processor

[0050] The processor is a part including an element that can perform a logical operation to execute a control command, and can include a central processing unit (CPU). The processor can be connected to an element to transmit a signal for control to the element according to a control command, and can be connected to a sensor and a collector to receive acquired information in the form of a signal. Accordingly, in an embodiment of the disclosure, the processor can be electrically connected to various elements included in the water heating apparatus 1. Since the processor can be electrically connected to an element, it can be connected to the element by wire or can further include a communication module that can perform communication wirelessly to communicate with each other.

[0051] The burner 10 can further include a storage medium in which a control command executed by the processor can be stored for use. The storage medium can be a device such as a hard disk drive (HDD), a solid state drive (SSD), a server, a volatile medium, or a non-volatile medium, but its kind is not limited thereto. In addition, the storage medium can further store data required to allow the processor to perform an operation.

[0052] The processor can be electrically connected to the air supply parts 13 and 14 and the pressure acquisition part 16. Here, the electrical connection includes a physical connection for current flow and a connection through communication for transmitting and receiving a control signal.

[0053] The processor can control the speed at which the blower 13 rotates based on the pressure value acquired by the pressure acquisition part 16 and a predetermined reference pressure. The processor can control the blower 13 such that the speed at which the blower 13 rotates increases when the pressure value acquired by the pressure acquisition part 16 is lower than the predetermined reference pressure. When a negative pressure is generated in the long pipe, the pressure of the air supplied to the blower 13 decreases, and thus a lift phenomenon can occur. Accordingly, in this case, since a higher flow of air is supplied by controlling the processor to make the blower 13 rotate more strongly, a pressure condition in which the lift phenomenon does not occur and normal combustion can be induced, i.e., a condition similar to the reference pressure can be formed. In contrast, when the pressure value acquired by the pressure acquisition part 16 is an excessively high pressure value, the processor can control the blower 13 such that the speed at which the blower 13 rotates decreases.

[0054] The reference pressure value can be a preset value. The processor can set the pressure value acquired by the pressure acquisition part 16 when the operations of the air supply parts 13 and 14 are stopped and then started again as the reference pressure value.

[0055] Fuel supply parts 12, 15, 17, and 18

[0056] The fuel supply parts 12, 15, 17, and 18 are parts that supply fuel for a combustion reaction, and can supply fuel to a combustion space inside the combustion chamber 20. The fuel supplied by the fuel supply parts 12, 15, 17, and 18 can be a gaseous fuel gas.

[0057] The fuel supply parts 12, 15, 17, and 18 can include a fuel nozzle 12. The fuel nozzle 12 is a part that sprays fuel. A plurality of fuel nozzles 12 can be provided. A plurality of fuel nozzles 12 can be provided, and the amount of emitted nitrogen oxides can be reduced by forming separate flames. The plurality of fuel nozzles 12 can be disposed apart from each other while surrounding a fuel nozzle 12 located at the center when viewed in the reference direction, with the fuel nozzle 12 located at the center. The plurality of fuel nozzles 12 can be disposed at equal angles with the ignition part 19 at the center. Accordingly, a figure obtained by connecting the positions at which the plurality of fuel nozzles 12 are disposed when viewed in the reference direction can be a regular polygon.

[0058] The fuel supply parts 12, 15, 17, and 18 can include the fuel valves 15. The fuel supply parts 12, 15, 17, and 18 can include valve delivery pipes 17 for delivering the fuel stored in the fuel tank to the fuel valves 15. The fuel supply parts 12, 15, 17, and 18 can include nozzle delivery pipes 18 for delivering the fuel discharged from the fuel valves 15 to the fuel nozzles 12. As shown, the valve delivery pipes 17 can include first valve delivery pipes 171 connected to the fuel tank and a plurality of second valve delivery pipes 172 branched from the first valve delivery pipes 171 and delivering the fuel to the plurality of fuel valves 15. The nozzle delivery pipes 18 can include first nozzle delivery pipes 181 collecting the fuel discharged from the plurality of fuel valves 15 at one location and second nozzle delivery pipes 182 extending from the first nozzle delivery pipes 181 toward the fuel nozzles 12.

[0059] The fuel valves 15 can control the flow rate of the fuel supplied to the combustion chambers 20. The fuel valves 15 can control the flow rate of the fuel supplied to the combustion chambers 20 according to the pressure of the combustion chambers 20.

[0060] Figure 4 is a conceptual view of a water heating appliance system 100 according to an embodiment of the disclosure.

[0061] Referring to the drawings, a water heating appliance system 100 according to an embodiment of the disclosure can include a plurality of water heating appliances 1a and 1b. The plurality of water heating appliances 1a and 1b can be the same as the water heating appliance 1 described above, and can be a first water heating appliance 1a and a second water heating appliance 1b, respectively. The first water heating appliance 1a and the second water heating appliance 1b can be connected to a common pipe 101 through first and second pipes 102 and 103. When the first water heating appliance 1a is operated and the second water heating appliance 1b is not operated, the internal pressure of the combustion chamber 20 of the second water heating appliance 1b can be increased by the combustion gas discharged from the first water heating appliance 1a. In this case, the flow rate of the fuel supplied to the second water heating appliance 1b is lower than that of the air, and thus the ratio of the fuel to the normal air cannot be maintained, so that smooth combustion cannot be induced.

[0062] Figure 5 is a view illustrating a fuel valve 15 of a burner 10 according to an embodiment of the disclosure. Figure 6 is a view illustrating Figure 5 a portion of the fuel valve 15 of Figure 7 is a view illustrating Figure 5 a feedback port 156, a fuel chamber 153, and a valve port 155 of the fuel valve 15 of

[0063] The fuel supply parts 12, 15, 17, and 18 according to the embodiments of the present disclosure can overcome the above-described problems by controlling the opening degree of the fuel valve 15 according to the pressure of the combustion chamber 20. The fuel supply parts 12, 15, 17, and 18 can include a pressure delivery pipe that communicates with the inside of the combustion chamber 20 and is connected to the fuel valve 15 to control the opening degree of the fuel valve 15 according to the pressure of the combustion chamber 20. The internal pressure of the combustion chamber 20 is delivered to the fuel valve 15 through the pressure delivery pipe to allow feedback control. One end of the pressure delivery pipe can be connected to the feedback port 156, and the opposite end thereof can be located inside the blower pipe 112 to deliver the internal pressure of the combustion chamber 20 to the fuel valve 15.

[0064] The fuel valve 15 can include the feedback port 156, the fuel chamber 153, and the valve port 155. The fuel valve 15 can include a delivery chamber 151 and an open / close chamber 152.

[0065] Fuel delivered to the fuel valve 15 through the valve delivery pipe 17 can be introduced into the delivery chamber 151. The delivery chamber 151 can be connected to the open / close chamber 152 to deliver fuel to the open / close chamber 152. An open / close valve body can be provided inside the open / close chamber. An opening connected to the fuel chamber 153 can be opened and closed by the open / close valve body according to the control of the processor. Accordingly, control for supplying or not supplying fuel can be performed through the open / close chamber 152.

[0066] The fuel chamber 153 can receive fuel from the open / close chamber 152, and can discharge fuel through a fuel opening connected to the nozzle delivery pipe 18. That is, the fuel opening can be connected to the fuel nozzle 12 and the combustion chamber 20 through the nozzle delivery pipe 18. The valve port 155 can open and close the fuel opening. The valve port 155 can be connected to the pressure delivery pipe to be driven by a pressure difference of the feedback port 156 that receives the atmospheric pressure of the combustion chamber 20 and the fuel chamber 153. The fuel valve 15 can include the feedback port 156 connected to the pressure delivery pipe and the fuel chamber 153.

[0067] When the pressure of the combustion chamber 20 is higher and there is no feedback control, a smaller amount of fuel is supplied compared to when the pressure of the combustion chamber 20 is lower, and thus it is difficult to maintain the ratio of fuel to normal air. Since the fuel valve 15 as in the embodiments of the present disclosure is provided to compensate for this, the valve port 155 can open the fuel opening at a higher opening degree when the pressure of the combustion chamber 20 is higher, and can open the fuel opening at a lower opening degree when the pressure of the combustion chamber 20 is lower. Accordingly, in the water heating apparatus 1 according to the embodiments of the present disclosure, a larger amount of fuel can be supplied to the combustion chamber 20 through the fuel valve 15 when the pressure of the combustion chamber 20 is higher than the pressure of the combustion chamber 20, and thus the ratio of fuel to normal air can be maintained.

[0068] As illustrated, a plurality of fuel valves 15 can be provided, and the plurality of fuel valves 15 can be connected in parallel to each other. The description that the fuel valves 15 are connected in parallel to each other means that the fuel valves 15 are not directly connected in series to each other, and fuel is supplied from the same valve delivery pipe 17 to be discharged to the same nozzle delivery pipe 18. Because the fuel valves 15 are connected in parallel to each other for control, a fixed amount of fuel is not provided, but fine proportional control of the amount of fuel can be performed, whereby proportional control can be performed so that the ignition and combustion state can be maintained at a low heat. Because ignition at a low heat can be performed by the parallel valve connection structure, a low ignition pressure is generated, whereby the impact applied to another component that communicates with the combustion chamber 20 and another water heating device connected by a common pipe can be reduced, and ignition noise can be reduced. Furthermore, because a plurality of inexpensive valves responsible for low flow can be used, an economical fuel supply structure can be formed compared to a case in which one expensive valve responsible for high flow is used.

[0069] Therefore, because the blower can be appropriately controlled according to the load of the installation environment of the burner, stable ignition can be achieved, and the lifting phenomenon can be reduced, thereby achieving stable combustion.

[0070] Although it can have been described so far that all elements constituting the embodiments of the present disclosure are coupled to one element to be operated or coupled together to be operated, the present disclosure is not substantially limited to these embodiments. That is, all elements can be selectively coupled to one or more elements to be operated without departing from the object of the present disclosure. Furthermore, because terms such as "include," "contain," or "have" can mean that the corresponding element can be included unless there is a particularly contradictory description, it should be understood that another element is not excluded but can be further included. Furthermore, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. Terms commonly used, such as terms defined in a dictionary, should be interpreted in accordance with the contextual meaning of the relevant art, and unless clearly defined in the present disclosure, are not interpreted as an ideal or excessively formal meaning.

[0071] The above description is a simple example of the technical spirit of the present disclosure, and the present disclosure can be variously corrected and modified by those skilled in the art to which the present disclosure belongs without departing from the essential characteristics of the present disclosure. Therefore, the embodiments disclosed in the present disclosure are not provided in order to limit the technical spirit of the present disclosure, but are provided in order to describe the present disclosure, and the scope of the technical spirit of the present disclosure is not limited by the embodiments. Therefore, the technical scope of the present disclosure should be interpreted by the appended claims, and all technical spirits within the equivalent scope fall within the scope of the present disclosure.

[0072] This application claims priority to Korean Patent Application No. 10-2021-0193355, filed on December 30, 2021, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference.

Claims

1. A burner comprising: a fuel providing part configured to provide fuel for a combustion reaction to a combustion chamber; an air providing part including a blower configured to blow air for a combustion reaction to the combustion chamber according to rotation of the blower, and an air supply duct connected to the blower so that air is delivered to the blower from the outside; an ignition part configured to generate a spark so that the provided fuel and air are ignited; a pressure obtaining part connected to the air supply duct so as to obtain a pressure of air provided to the air providing part; and a processor electrically connected to the air providing part and the pressure obtaining part, wherein the processor is configured to: control the blower so that a speed of rotation of the blower is increased when a pressure value obtained by the pressure obtaining part is less than a predetermined reference pressure value, wherein the fuel providing part includes: a fuel valve configured to determine a flow rate of the fuel provided to the combustion chamber according to a pressure of the combustion chamber; and a pressure delivery duct communicating with an inside of the combustion chamber and connected to the fuel valve so as to control an opening degree of the fuel valve according to the pressure of the combustion chamber. the blower includes a vane part that pumps the air when rotated, and a rotation part configured to rotate the vane part, and 2. The burner of claim 1, wherein, wherein the rotation part is a BLDC motor. the processor is configured to:

3. The burner of claim 1, wherein, set a pressure value obtained by the pressure obtaining part when an operation of the air providing part is stopped and started again as the reference pressure value. the fuel valve includes:

4. The burner of claim 1, wherein, a feedback port connected to the pressure delivery duct; a fuel chamber including a fuel opening connected to the combustion chamber; and a valve port configured to open and close the fuel opening and driven by a pressure difference between the feedback port and the fuel chamber. 5.The burner of claim 1, further comprising: a plurality of fuel valves, and wherein the plurality of fuel valves are connected in parallel to each other. 6.A water heating apparatus comprising: a combustion chamber configured to induce a combustion reaction; a burner; and a heat exchanger configured to receive combustion gas generated by the combustion reaction and exchange heat with water, wherein the burner includes: a fuel providing part configured to provide fuel to the combustion chamber; an air providing part including a blower configured to blow air to the combustion chamber according to rotation of the blower, and an air supply duct connected to the blower so that air is delivered to the blower from the outside; an ignition part configured to generate a spark so that the provided fuel and air are ignited; ​ ​ a pressure acquisition part connected to the air supply conduit so as to acquire a pressure of air supplied to the air providing part; and a processor electrically connected to the air providing part and the pressure acquisition part, wherein the processor is configured to: control a speed at which the blower rotates based on a pressure value acquired by the pressure acquisition part and a predetermined reference pressure value, and wherein the fuel providing part includes: a fuel valve configured to determine a flow rate of the fuel supplied to the combustion chamber according to a pressure of the combustion chamber; and a pressure delivery conduit communicating with an inside of the combustion chamber and connected to the fuel valve so as to control an opening degree of the fuel valve according to the pressure of the combustion chamber.

7. The water heating apparatus of claim 6, wherein, The burner is a gun-type burner. 8.A method for controlling a burner, the method comprising: acquiring a pressure of air supplied to a burner including a blower; comparing the acquired pressure value with a predetermined reference pressure value; and when the acquired pressure value is less than the reference pressure value, increasing a speed at which the blower rotates, the speed affecting a pressure of the air supplied to the burner, wherein the burner includes: a fuel providing part configured to supply a fuel to a combustion chamber; and wherein the fuel providing part includes: a fuel valve configured to determine a flow rate of the fuel supplied to the combustion chamber according to a pressure of the combustion chamber; and a pressure delivery conduit communicating with an inside of the combustion chamber and connected to the fuel valve so as to control an opening degree of the fuel valve according to the pressure of the combustion chamber.

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