Adjusting device, combustor and combustion equipment

Abstract

The embodiment of the utility model discloses an adjusting device which is applied to a combustor, the combustor comprises an air inlet channel and a fire row group adjacent to the air inlet channel, the fire row group comprises a plurality of fire rows arranged side by side, the air inlet channel is used for providing combustion gas for the plurality of fire rows, and the air inlet channel is used for providing combustion gas for the plurality of fire rows. The adjusting device comprises a telescopic assembly and a power assembly, the telescopic assembly is movably arranged in the air inlet channel in the arrangement direction of the fire rows, the power assembly is connected to the telescopic assembly, and the power assembly is used for driving the telescopic assembly to stretch out and draw back so as to avoid all the air inlet channels adjacent to the fire rows. Or at least one air inlet channel adjacent to the fire row is shielded. The telescopic assembly is driven by the power assembly to stretch out and draw back so as to shield or avoid the air inlet channel, so that no air flows into unburned fire rows, and the heat exchange efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion equipment, in particular to an adjusting device, a burner and combustion equipment. Background Art

[0002] In the prior art, in order to meet the user's small heat load demand, such as setting a lower water temperature in summer, the heat load is usually regulated by adjusting the gas pressure and the staged combustion of the burner. At the same time, the air volume of the corresponding fan will also be adjusted accordingly according to the size of the heat load.

[0003] When the equipment is in a low heat load state, only part of the burner's fire row participates in combustion, while the other part of the fire row is in a non-combustion state. Despite this, the air supply channel between the burner fire rows has not been adjusted, resulting in air flowing through the non-combustion fire rows. This design not only causes excess air, but also interferes with the normal combustion process, taking away some heat, thereby reducing heat exchange efficiency.

[0004] The existing technology attempts to adapt the air-fuel ratio of the partially burned fire row by adjusting the fan speed and adjusting the pressure after the gas valve. Although this improves the combustion efficiency to a certain extent, there is still air flowing into the unburned fire row. This causes excess air to still participate in the combustion and heat exchange process, which ultimately affects the heat exchange efficiency of gas combustion. Therefore, a more effective technical solution is needed to optimize the overall combustion process and improve the heat exchange efficiency. Utility Model Content

[0005] The utility model aims to provide a regulating device, a burner and a combustion device, aiming to solve the problem of air inflow still existing between unburned fire rows in the prior art.

[0006] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing an adjusting device, applied to a burner, the burner comprising an air inlet channel and a fire bar group arranged adjacent to the air inlet channel, the fire bar group comprising a plurality of fire bars arranged side by side, the air inlet channel being used to provide combustion gas for the plurality of fire bars, the adjusting device comprising a telescopic component and a power component, the telescopic component being movably arranged in the air inlet channel along the arrangement direction of the fire bars, the power component being connected to the telescopic component, the power component being used to drive the telescopic component to telescope to avoid all the air inlet channels adjacent to the fire bars, or to block at least one air inlet channel adjacent to the fire bars;

[0007] Furthermore, the power assembly is connected to one end of the telescopic assembly, and the other end of the telescopic assembly is movably arranged in the air inlet channel along the arrangement direction of the fire bars;

[0008] Furthermore, the adjustment device further comprises a winding assembly arranged at one end of the fire row group, the telescopic assembly comprises a windable shielding plate, one end of the shielding plate is wound on the winding assembly, the power assembly is connected to the winding assembly, and the power assembly can drive the winding assembly to rotate so as to drive the shielding plate to be rolled up or unwound on the winding assembly;

[0009] Furthermore, the winding assembly includes a reel and a transmission belt, the power assembly includes a driving member and an output shaft connected to the end of the driving member, the driving member is used to drive the output shaft to rotate, the reel is arranged parallel to the output shaft, the transmission belt is wound between the reel and the output shaft, and one end of the shielding plate is wound on the reel;

[0010] Furthermore, it also includes a guide assembly, which is arranged in the air inlet channel along the arrangement direction of the fire bars, and the side of the telescopic assembly is movably connected to the guide assembly;

[0011] Furthermore, the guide assembly includes a first guide rail and a second guide rail parallel to the first guide rail, and two sides of the telescopic assembly are movably connected to the first guide rail and the second guide rail respectively;

[0012] Further, the first guide rail and the second guide rail are provided with a first guide groove and a second guide groove at opposite sides thereof, and the two sides of the telescopic assembly are respectively embedded in the first guide groove and the second guide groove, and can slide along the first guide groove and the second guide groove at the same time;

[0013] Furthermore, the air inlet channel is located below the plurality of fire bars;

[0014] The embodiment of the utility model further provides a burner, comprising an air inlet channel, a plurality of fire bars arranged adjacent to the air inlet channel, and the regulating device as described above, wherein the plurality of fire bars are arranged side by side, and the air inlet channel is used to provide combustion gas for the plurality of fire bars;

[0015] An embodiment of the utility model further provides a combustion device, comprising the burner as described above.

[0016] The embodiment of the utility model provides an adjustment device, which is applied to a burner, wherein the burner includes an air inlet channel and a fire bar group arranged adjacent to the air inlet channel, the fire bar group includes a plurality of fire bars arranged side by side, the air inlet channel is used to provide combustion gas for the plurality of fire bars, the adjustment device includes a telescopic component and a power component, the telescopic component is movably arranged in the air inlet channel along the arrangement direction of the fire bars, the power component is connected to the telescopic component, and the power component is used to drive the telescopic component to telescope to avoid all the air inlet channels adjacent to the fire bars, or to block at least one air inlet channel adjacent to the fire bars. The utility model drives the telescopic component to telescope through the power component to block or avoid the air inlet channel, so that no air flows into the unburned fire bars, thereby improving the heat exchange efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a burner provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the operation of an adjustment device provided in an embodiment of the utility model Figure 1 ;

[0020] Figure 3 A schematic diagram of the operation of an adjustment device provided in an embodiment of the utility model Figure 2 ;

[0021] Figure 4 for Figure 2 A magnified view of part A;

[0022] Figure 5 for Figure 3 A magnified view of part B;

[0023] Figure 6 A schematic diagram of the structure of an adjusting device provided in an embodiment of the utility model;

[0024] Figure 7 for Figure 6 Magnified view of part C.

[0025] Description of the symbols in the figure:

[0026] 100, adjustment device; 101, telescopic assembly; 1011, shielding plate; 102, power assembly; 1021, driving member; 1022, output shaft; 103, winding assembly; 1031, reel; 1032, transmission belt; 104, guide assembly; 1041, first guide rail; 10411, first guide groove; 1042, second guide rail; 10421, second guide groove;

[0027] 200. burner; 201. air inlet channel; 202. fire grate group; 2021. fire grate. DETAILED DESCRIPTION

[0028] 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0030] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0031] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] Combination Figures 1 to 5As shown, an embodiment of the utility model provides an adjusting device 100, which is applied to a burner 200. The burner 200 includes an air inlet channel 201 and a fire row group 202 arranged adjacent to the air inlet channel 201. The fire row group 202 includes a plurality of fire rows 2021 arranged side by side. The air inlet channel 201 is used to provide combustion gas for the plurality of fire rows 2021. The adjusting device 100 includes a telescopic component 101 and a power component 102. The telescopic component 101 is movably arranged in the air inlet channel 201 along the arrangement direction of the fire rows 2021. The power component 102 is connected to the telescopic component 101. The power component 102 is used to drive the telescopic component 101 to telescope to avoid all the air inlet channels 201 adjacent to the fire rows 2021, or to block the air inlet channel 201 adjacent to at least one fire row 2021.

[0033] In this embodiment, the combustion gas can be air. This embodiment is particularly suitable for a burner 200 that can be burned in stages. Staged combustion means that the number of fire rows burned by the burner 200 can be adjusted according to the setting. For example, all fire rows can be burned, or some fire rows can be burned. In general, when only some fire rows are burned, the fire rows that do not burn are from the fire rows at the end to a certain fire row in the middle, and this section of connected fire rows does not burn. The telescopic component 101 is arranged in the air inlet channel 201 and can be moved along the arrangement direction of the fire rows 2021. This design allows the telescopic component 101 to adjust its position as needed. The power component 102 is connected to the telescopic component 101 and is responsible for driving the telescopic component 101 to perform telescopic action. The adjustment device 100 can be arranged on the burner 200 in an integrated manner, or it can be detachably connected to the burner 200. During the staged combustion process, according to the combustion state of different fire rows 2021, the adjustment device 100 can adjust the opening or closing of the air inlet channel 201. When some of the fire bars 2021 are in a non-burning state, the telescopic components 101 block the air inlet channels 201 adjacent to the non-burning fire bars 2021 to prevent excessive air from flowing into the unburned fire bars 2021, thereby reducing thermal efficiency loss and energy waste. When the fire bars 2021 are in a burning state, the telescopic components 101 avoid the air inlet channels 201 adjacent to the burning fire bars 2021, so that the burning fire bars 2021 can receive air more fully.

[0034] In one embodiment, the power assembly 102 is connected to one end of the telescopic assembly 101 , and the other end of the telescopic assembly 101 is movably disposed in the air inlet channel 201 along the arrangement direction of the fire bar 2021 .

[0035] In this embodiment, when the burner 200 burns in sections, if some of the fire bars 2021 are in a non-working state, the power assembly 102 will drive the telescopic assembly 101 to move in the air inlet channel 201, thereby avoiding or blocking the corresponding air inlet channel 201. For example, the telescopic assembly 101 can move left and right or up and down. This movement mechanism can effectively control the air intake, ensuring that air is only provided to the burning fire bars 2021, and no air enters the non-working fire bars 2021, effectively avoiding excess air, thereby improving combustion efficiency and thermal energy utilization. Since the other end of the telescopic assembly 101 moves along the arrangement direction of the fire bars 2021, this design is suitable for blocking one or more consecutive fire bars starting from one end of the fire bars. In other embodiments, the telescopic component 101 can also be designed as a device including multiple telescopic shielding members, which are connected to the power component 102. The power component 102 can individually control each telescopic shielding member, and the multiple telescopic shielding members are arranged in sequence along the arrangement direction of the fire bars 2021, for example, located on the side of the arrangement direction of the fire bars 2021, and the multiple telescopic shielding members can block the corresponding one or more fire bars 2021 adjacent air inlet channels 201 when extended. In this way, the air intake conditions of each or several consecutive fire bars 2021 can be controlled individually. This design can be suitable for non-segmented combustion burners. For example, when it is necessary to control the staggered combustion of the fire bars in the burner (for example, fire bar 1 is burning, fire bar 2 is not burning, fire bar 3 is burning, fire bar 4 is not burning...), the above scheme can be adopted.

[0036] Combination Figure 6 and Figure 7 As shown, in one embodiment, the adjusting device 100 also includes a winding assembly 103 arranged at one end of the fire row group 202, the telescopic assembly 101 includes a windable baffle plate 1011, one end of the baffle plate 1011 is wound on the winding assembly 103, and the power assembly 102 is connected to the winding assembly 103. The power assembly 102 can drive the winding assembly 103 to rotate to drive the baffle plate 1011 to be reeled or unwound on the winding assembly 103.

[0037] In this embodiment, one end of the shielding plate 1011 is wound on the winding assembly 103, and the power assembly 102 is directly connected to the winding assembly 103. The main function of the power assembly 102 is to drive the winding assembly 103 to rotate; according to the driving direction of the power assembly 102, the winding assembly 103 can rotate clockwise or counterclockwise to drive the shielding plate 1011 to move, that is, to reel in or unreel. The shielding plate 1011 here can be a curtain plate.

[0038] Specifically, when the winding assembly 103 rotates clockwise, the shielding plate 1011 extends from the winding assembly 103, starting from covering the air inlet channel 201 under the fire bar near one end of the winding assembly 103, and gradually covering the air inlet channels 201 under all the fire bars 2021 that do not need air inlet. On the contrary, when the winding assembly 103 rotates counterclockwise, the shielding plate 1011 is retracted, thereby opening the air inlet channel 201 and allowing air to flow to more fire bars 2021. Of course, the rotation direction can also be reversed, that is, when the winding assembly 103 rotates clockwise, the shielding plate 1011 is retracted, and when the winding assembly 103 rotates counterclockwise, the shielding plate 1011 extends from the winding assembly 103.

[0039] For example, in a burner 200 supporting 14 rows of fire bars 2021, if all 14 rows of fire bars 2021 are burning, the shielding plate 1011 is in a fully retracted state, and there is no need to shield the air inlet channel 201 of any fire bar 2021 (combined with Figure 3 and Figure 5 However, if only 7 rows of fire bars need to be burned, the shielding plate 1011 will extend to block the air inlet channel 201 under the remaining 7 rows of fire bars that have not been burned (combined with Figure 2 and Figure 4 As shown), the combustion efficiency is optimized and energy waste is reduced. It should be noted that, since the winding assembly 103 in this embodiment is provided at one end of the fire row group, this embodiment can only start shielding from the fire row near one end of the winding assembly 103.

[0040] In one embodiment, the winding assembly 103 includes a reel 1031 and a transmission belt 1032, the power assembly 102 includes a driving member 1021 and an output shaft 1022 connected to the end of the driving member 1021, the driving member 1021 is used to drive the output shaft 1022 to rotate, the reel 1031 is arranged parallel to the output shaft 1022, the transmission belt 1032 is wound between the reel 1031 and the output shaft 1022, and one end of the baffle 1011 is wound on the reel 1031.

[0041] In the present embodiment, the winding assembly 103 is mainly composed of a reel 1031 and a transmission belt 1032, and one end of the shielding plate 1011 is wound on the reel 1031. The design of the reel 1031 allows the shielding plate 1011 to move in a winding and unwinding manner, thereby controlling the shielding or avoiding of the air inlet channel 201. The power assembly 102 includes a driving member 1021 and an output shaft 1022 connected to the end of the driving member 1021. The driving member 1021 is a power motor for generating rotational power. The output shaft 1022 is connected to the driving member 1021 and is responsible for transmitting the rotational power generated by the driving member 1021 to the reel 1031. The output shaft 1022 and the reel 1031 are usually arranged in parallel, and the transmission belt 1032 is used as a connecting medium, which is wound between the reel 1031 and the output shaft 1022 to transmit the rotational force of the output shaft 1022 to the reel 1031, so that when the power component 102 is activated, the rotation of the output shaft 1022 drives the reel 1031 to rotate synchronously through the transmission belt 1032, thereby realizing the unfolding or reeling of the baffle 1011.

[0042] When it is necessary to adjust the working state of the fire bars 2021 (such as switching from burning all the fire bars 2021 to burning some of the fire bars 2021), the driving member 1021 is started to drive the output shaft 1022 to rotate. This power is transmitted to the reel 1031 through the transmission belt 1032, and the rotation of the reel 1031 drives the shielding plate 1011 to unfold or reel. For example, if the number of burning fire bars 2021 is reduced, the shielding plate 1011 will unfold and cover the air inlet channel 201 of the non-working fire bars to prevent excess air from flowing in and improve the combustion efficiency; on the contrary, when the number of burning fire bars 2021 is increased, the shielding plate 1011 will reel in and open the air inlet channel 201 of more fire bars 2021. In other embodiments, other transmission structures can also be used to replace the transmission belt 1032, for example, a gear transmission structure can be used to realize the transmission of the power of the output shaft 1022 to the reel 1031.

[0043] In one embodiment, a guide assembly 104 is further included. The guide assembly 104 is arranged in the air inlet channel 201 along the arrangement direction of the fire bars 2021 , and the side of the telescopic assembly 101 is movably connected to the guide assembly 104 .

[0044] In this embodiment, the guide assembly 104 is designed to ensure that the telescopic assembly 101 moves smoothly along the correct path, which allows the side of the telescopic assembly 101 to be connected to the guide assembly 104 by a sliding connection, so that the shielding plate 1011 can move along the set path. In addition, the guide assembly 104 acts as a physical support and guide to maintain the stability of the shielding plate 1011 and prevent it from deviating during movement.

[0045] Further, when the shielding plate 1011 needs to be extended or retracted to adjust the shielding state of the air inlet channel 201, the telescopic assembly 101 moves along the guide assembly 104. The power assembly 102 controls the extension and retraction of the shielding plate 1011 by driving the winding assembly 103. Since the shielding plate 1011 is connected to the side of the guide assembly 104, the shielding plate 1011 is directional-advanced or retracted along the guide assembly 104.

[0046] In one embodiment, the guide assembly 104 includes a first guide rail 1041 and a second guide rail 1042 parallel to the first guide rail 1041 , and two sides of the telescopic assembly 101 are movably connected to the first guide rail 1041 and the second guide rail 1042 .

[0047] In this embodiment, the guide assembly 104 is composed of two main parts, namely a first guide rail 1041 and a second guide rail 1042, which are arranged in parallel and extend along the arrangement direction of the fire bars 2021 at the corresponding position of the air inlet channel 201. The telescopic assembly 101 has two side edges, which are movably connected to the first guide rail 1041 and the second guide rail 1042 respectively, which allows the telescopic assembly 101 to move smoothly along the two guide rails when performing an extension or contraction action.

[0048] Specifically, when the burning state of the fire bars 2021 needs to be adjusted, for example, when the burning of all the fire bars 2021 is switched to the burning of part of the fire bars 2021, the power assembly 102 controls the extension or contraction of the shielding plate 1011 by driving the winding assembly 103. As the shielding plate 1011 moves, the shielding plate 1011 slides along the first guide rail 1041 and the second guide rail 1042. This sliding mechanism maintains the stability of the telescopic assembly 101 and prevents it from being offset or tilted during movement.

[0049] In one embodiment, the first guide groove 10411 and the second guide groove 10421 are respectively opened on the opposite sides of the first guide rail 1041 and the second guide rail 1042, and the two sides of the telescopic component 101 are respectively embedded in the first guide groove 10411 and the second guide groove 10421, and can slide along the first guide groove 10411 and the second guide groove 10421 at the same time.

[0050] In this embodiment, the first guide rail 1041 and the second guide rail 1042 are provided with a first guide groove 10411 and a second guide groove 10421 on opposite sides thereof. These guide grooves can match the two side edges of the telescopic assembly 101 to provide a smooth and directional sliding channel. The two side edges of the telescopic assembly 101 can be embedded in the first guide groove 10411 and the second guide groove 10421. This embedding method not only ensures the stability of the telescopic assembly 101 during movement, but also prevents the telescopic assembly 101 from other displacements in the lateral or vertical direction. A limiting structure, such as a limiting protrusion, can be simultaneously provided at the same position of the first guide groove 10411 and the second guide groove 10421 to limit the telescopic length of the shielding plate 1011. For example, a first limiting protrusion and a second limiting protrusion can be set on both the first guide groove 10411 and the second guide groove 10421, wherein the first limiting protrusion is closer to the winding assembly 103 relative to the second limiting protrusion, so that the first limiting protrusion limits the contraction length of the shielding plate 1011, and the second limiting protrusion limits the extension length of the shielding plate 1011.

[0051] In one embodiment, the air inlet channel 201 is located below the plurality of fire bars 2021 .

[0052] In this embodiment, the air inlet channel 201 is located below multiple fire bars 2021 and extends along the arrangement direction of the fire bars 2021. The air inlet channel 201 can provide the required combustion gases for all the fire bars 2021. These combustion gases are transported to each fire bar 2021 through the openings on the air inlet channel 201.

[0053] When the burner 200 is in normal operation, all the fire bars 2021 need combustion gas to maintain the flame. The air inlet channel 201 is the main air supply source, and its position below the fire bars 2021 ensures that air can directly enter each fire bar 2021, which helps to achieve efficient combustion and optimized heat output.

[0054] When it is necessary to reduce the number of burning fire bars 2021, the shielding plate 1011 moves and extends out, and blocks the part of the air inlet channel 201 below the fire bars 2021 that does not need gas. On the contrary, when all the fire bars 2021 need to burn, the shielding plate 1011 will be retracted, so as not to block the air inlet channel 201 under any fire bar 2021, allowing air to flow freely and supporting the combustion of all fire bars 2021. Of course, in order to adapt to the design structure of other burners 200, the air inlet channel 201 can also be set at other positions, for example, the air inlet channel 201 can be set on the side of multiple fire bars 2021 (the front, back, left and right positions of the fire bars 2021 can be), and the fire bars 2021 can also be provided with combustion gas through the air inlet channel 201. For special needs, the air inlet channel 201 can also be set above the fire bars 2021, so that the combustion gas is more directly supplied to the fire bars 2021.

[0055] The embodiment of the utility model also provides a burner 200, including an air inlet channel 201, a plurality of fire bars 2021 arranged adjacent to the air inlet channel 201, and the adjustment device 100 as described above, wherein the plurality of fire bars 2021 are arranged side by side, and the air inlet channel 201 is used to provide combustion gas for the plurality of fire bars 2021.

[0056] In this embodiment, the burner 200 is mainly composed of an air inlet channel 201, a plurality of fire bars 2021 arranged side by side, and an adjustment device 100. The air inlet channel 201 is located below the plurality of fire bars 2021 and runs through the arrangement direction of the fire bars 2021. Its main function is to provide the required combustion gas for the fire bars 2021. Each fire bar 2021 is designed to receive gas from the air inlet channel 201 and burn it when necessary to generate the required heat energy.

[0057] The operation of the burner 200 is based on the actual heat load demand of the user. When the system detects that a higher heat load is required, the pressure after the gas valve is adjusted and the air volume of the fan is increased to ensure that sufficient combustion gas is supplied to each fire grate 2021. The regulating device 100 opens or closes the air inlet channel 201 under the corresponding fire grate 2021 according to the current combustion demand by adjusting the starting position of the baffle 1011. This regulating mechanism not only ensures the optimal mixing ratio of combustion gas and air (theoretically, one part of gas requires ten parts of air to achieve complete combustion), but also optimizes the heat exchange efficiency. By reducing the introduction of excess air, it avoids taking away too much heat and reduces the generation of harmful gases.

[0058] The embodiment of the utility model further provides a combustion device, including the burner 200 as described above.

[0059] In this embodiment, the combustion equipment can be a wall-mounted boiler, etc. The burner 200 is the core component of the combustion equipment, including an air inlet channel 201 and a plurality of fire bars 2021. The fire bars 2021 are arranged side by side and adjacent to the air inlet channel 201, so that the combustion gas can be directly supplied to each fire bar 2021. The air inlet channel 201 is located below the plurality of fire bars 2021, extending along the arrangement direction of the fire bars 2021, and providing the required combustion gas for the fire bars 2021. The heat load output of the combustion equipment is mainly controlled by the pressure after the gas valve, and the increase or decrease of the gas flow directly affects the size of the heat load. The fan air volume is adjusted according to the gas flow rate to maintain an ideal air-fuel ratio, ensure complete combustion, avoid the generation of harmful gases, and optimize the heat exchange efficiency. The fire bars 2021 can switch different combustion states (for example, 12 rows or 4 rows) according to the heat load demand, and the air inlet channel 201 under the corresponding fire bar 2021 is controlled to be opened or closed by the regulating device 100, thereby adjusting the heat load output. This flexible adjustment method allows the combustion equipment to maintain high efficiency and energy saving under different operating conditions.

[0060] For example, for a wall-mounted boiler with a 26KW model, its heat load output can be adjusted between 3.5KW and 26KW. The wall-mounted boiler is equipped with 12 rows of grates, which can be adjusted to two combustion states of 12 rows and 4 rows to adapt to different heat load requirements and achieve the goal of constant hot water temperature. The pressure after the gas valve controls the gas flow required for combustion, and its general adjustment range is from 120pa to 1200pa. Under the combustion state of fixed grates, if the pressure after the gas valve increases, the gas flow increases, and the corresponding heat load output also increases; conversely, the gas flow and heat load output decrease. The combustion state of the burner exhaust determines how many grates participate in the combustion. Under the same pressure after the gas valve, if more grates participate in the combustion, the heat load output is larger; conversely, when fewer grates participate in the combustion, the heat load output is smaller.

[0061] Furthermore, in the state of 12 rows of fire grates, the combustion gas flow is controlled by adjusting the pressure after the gas valve, and the adjustable range of heat load output is about 8.6KW to 26KW. To further reduce the heat load, the wall-mounted boiler needs to switch to the combustion state of 4 rows of fire grates. In this state, the pressure after the gas valve will be readjusted as needed, and the adjustable range of heat load output is about 3.5KW to 9.6KW.

[0062] The heat load output adjustment sequence of the wall-mounted boiler is to adjust the pressure after the gas valve first, and then adjust the exhaust combustion state of the burner. Since the combustion efficiency depends on the ideal air-fuel ratio, the air volume of the fan must be adjusted in time according to the gas flow rate. Too much air will take away some heat and reduce the heat exchange efficiency; insufficient air may lead to incomplete combustion of carbon monoxide. Therefore, keeping the air-fuel ratio within a reasonable range is the key to achieving efficient combustion and optimizing heat exchange.

[0063] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A regulating device, applied to a burner, the burner comprising an air inlet channel and a fire bar group arranged adjacent to the air inlet channel, the fire bar group comprising a plurality of fire bars arranged side by side, the air inlet channel being used to provide combustion gas for the plurality of fire bars, characterized in that: The adjusting device includes a telescopic component and a power component. The telescopic component is movably arranged in the air inlet channel along the arrangement direction of the fire bars. The power component is connected to the telescopic component. The power component is used to drive the telescopic component to telescope to avoid all the air inlet channels adjacent to the fire bars, or to block at least one air inlet channel adjacent to the fire bars.

2. The adjusting device according to claim 1, characterized in that: The power component is connected to one end of the telescopic component, and the other end of the telescopic component is movably arranged in the air inlet channel along the arrangement direction of the fire bars.

3. The adjusting device according to claim 2, characterized in that: The adjusting device also includes a winding assembly arranged at one end of the fire row group, the telescopic assembly includes a windable shielding plate, one end of the shielding plate is wound on the winding assembly, the power assembly is connected to the winding assembly, and the power assembly can drive the winding assembly to rotate to drive the shielding plate to be reeled or unwound on the winding assembly.

4. The adjusting device according to claim 3, characterized in that: The winding assembly includes a reel and a transmission belt, the power assembly includes a driving member and an output shaft connected to the end of the driving member, the driving member is used to drive the output shaft to rotate, the reel is arranged parallel to the output shaft, the transmission belt is wound between the reel and the output shaft, and one end of the baffle is wound on the reel.

5. The adjusting device according to claim 1, characterized in that: It also includes a guide component, which is arranged in the air inlet channel along the arrangement direction of the fire bars, and the side of the telescopic component is movably connected to the guide component.

6. The adjusting device according to claim 5, characterized in that: The guide assembly includes a first guide rail and a second guide rail parallel to the first guide rail, and two sides of the telescopic assembly are movably connected to the first guide rail and the second guide rail respectively.

7. The adjusting device according to claim 6, characterized in that: The first guide rail and the second guide rail have opposite sides respectively provided with a first guide groove and a second guide groove, and the two sides of the telescopic assembly are respectively embedded in the first guide groove and the second guide groove and can slide along the first guide groove and the second guide groove simultaneously.

8. The adjustment device according to claim 1, characterized in that: The air inlet channel is located below the plurality of fire bars.

9. A burner, characterized in that: It comprises an air inlet channel, a plurality of fire bars arranged adjacent to the air inlet channel, and an adjusting device as described in any one of claims 1 to 8, wherein the plurality of fire bars are arranged side by side, and the air inlet channel is used to provide combustion gas for the plurality of fire bars.

10. A combustion device, characterized in that: Comprising the burner as claimed in claim 9.

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