Air supply system and stove

Abstract

The utility model discloses a kind of blast system and cooking utensil of supplementary secondary air, blast system includes fan and air volume regulating device. Air volume regulating device includes adjusting seat and adjusting valve core, adjusting seat is equipped with valve cavity, adjusting valve core is rotationally arranged in valve cavity, and located on the airflow flow path of fan. Adjusting seat is equipped with at least two airflow distribution ports of communicating valve cavity, adjusting valve core is equipped with with airflow distribution port one-to-one corresponding air hole, adjusting valve core rotates, air hole can selectively with corresponding airflow distribution port communication or disconnect. The blast system is rotated by controlling adjusting valve core, can make only one air hole with corresponding airflow distribution port communication, while the rest air hole is not communicated with airflow distribution port, prevent air leakage, make the air volume of burner stable and sufficient, and combustion efficiency is high. At the same time, two air holes can also be communicated with corresponding airflow distribution port, realize that one fan is simultaneously two burners air supply, simplify structure, reduce cost, improve energy-saving effect.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a blower system and stove for replenishing secondary air. Background Technology

[0002] Gas stoves are indispensable electrical appliances in modern homes and restaurants, and their thermal efficiency directly affects energy consumption and operating costs. To improve the thermal efficiency of gas stoves, existing technologies typically employ forced draft technology, which uses a fan to force combustion air into the burner, increasing the mixing degree of gas and air, thereby improving thermal efficiency.

[0003] For gas cooktops equipped with dual or multiple burners, the conventional solution is to configure an independent fan for each burner. While this meets the air supply requirements, the overall structure is complex, with numerous components and high production costs. Furthermore, the arrangement of multiple fans occupies a significant amount of internal space, which is detrimental to the overall design. Some existing technologies employ a single-fan solution, where one fan supplies air to both burners simultaneously. However, when only one burner is operating, the air intake channel corresponding to the other burner remains open, creating a leakage path. This means that some of the airflow generated by the fan is not supplied to the operating burner, resulting in energy waste and preventing the operating burner from receiving the optimal air volume required for its design. This leads to insufficient air supply, decreased flame stability, incomplete combustion, and ultimately, the actual thermal efficiency of the cooktop is not effectively improved.

[0004] Therefore, there is an urgent need for a blower system and stove that can supply secondary air to solve the above problems. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a blower system and stove that replenishes secondary air, which can ensure accurate air volume distribution, improve flame stability and thermal efficiency, and at the same time reduce implementation costs and overall energy consumption, thereby improving the energy-saving effect of the stove.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, a blower system for supplying secondary air is provided, comprising:

[0008] Fan;

[0009] An air volume regulating device includes an regulating seat and a regulating valve core. The regulating seat is provided with a valve cavity, and the regulating valve core is rotatably disposed in the valve cavity and located on the airflow path of the fan.

[0010] The regulating seat is provided with at least two airflow distribution ports that communicate with the valve chamber. The end of the airflow distribution port away from the valve chamber is used to connect to the burner. The regulating valve core is provided with vent holes that correspond one-to-one with the airflow distribution ports. When the regulating valve core rotates, the vent holes can selectively communicate with or disconnect from the corresponding airflow distribution ports.

[0011] As an optional solution for the blower system for supplying secondary air according to this utility model, the regulating valve core is provided with a first vent hole and a second vent hole, and the first vent hole and the second vent hole are staggered in the circumferential and axial directions of the regulating valve core.

[0012] As an optional solution for the blower system for supplying secondary air in this utility model, the regulating seat is provided with a first airflow distribution port and a second airflow distribution port, and the regulating valve core has at least a first position, a second position and a third position in the valve cavity;

[0013] When the regulating valve core is in the first position, the first vent hole is directly connected to the first airflow distribution port, and the second vent hole is offset from the second airflow distribution port and is not connected.

[0014] When the regulating valve core is in the second position, the second vent hole is directly connected to the second airflow distribution port, and the first vent hole is offset from the first airflow distribution port and is not connected.

[0015] When the regulating valve core is in the third position, the first vent is connected to the first airflow distribution port, and the second vent is connected to the second airflow distribution port.

[0016] As an optional solution for the secondary air supply blower system of this utility model, the secondary air supply blower system further includes ventilation ducts that are connected one-to-one with at least two of the airflow distribution ports, and the end of the ventilation duct away from the airflow distribution port is connected to the corresponding burner.

[0017] As an optional solution for the secondary air supply system of this utility model, each of the ventilation ducts is connected to a flow divider at the end away from the airflow distribution port, and a flow divider pipe is provided on the flow divider, which extends to the area where the burner cap is located.

[0018] As an optional solution for the secondary air supply system of this utility model, the burner includes an outer ring burner cap and an inner ring burner cap that are coaxially spaced apart. At least two of the splitter pipes are spaced apart on the splitter seat. The outlet end of the splitter pipe is located in the area between the outer ring burner cap and the inner ring burner cap, and is used to supply secondary air to the outer ring burner cap and the inner ring burner cap.

[0019] As an optional solution for the blower system for supplying secondary air of this utility model, the air volume regulating device further includes a driving component, the output end of which is provided with a connecting sleeve, and the regulating valve core is provided with a connecting shaft, which is inserted into the connecting sleeve and circumferentially limited.

[0020] As an optional solution for the blower system for supplying secondary air according to this utility model, a sealing structure is provided between the regulating valve core and the cavity wall of the valve chamber, so that the regulating valve core and the valve chamber are in a sealed rotational fit.

[0021] As an optional solution for the secondary air supply blower system of this utility model, the regulating seat is provided with an installation port communicating with the valve cavity, the regulating valve core is provided with an air inlet communicating with the vent hole, and the air outlet of the blower is connected to the installation port and communicates with the air inlet hole.

[0022] On the other hand, a stove is provided, including at least two burners and a blower system for supplying secondary air as described above, the blower system being capable of supplying secondary air to at least two of the burners.

[0023] The beneficial effects of this utility model are as follows:

[0024] The secondary air supply blower system and stove provided by this utility model, by controlling the rotation of the regulating valve core within the valve chamber, allows the vent holes on the regulating valve core to selectively connect or disconnect with the corresponding airflow distribution ports. When a vent hole is connected to a corresponding airflow distribution port, the airflow generated after the fan starts can be delivered to the corresponding burner through the vent hole and airflow distribution port, thereby supplying air to the burner. Specifically, when only one burner is working, the regulating valve core can be controlled to rotate so that only one vent hole is connected to the airflow distribution port corresponding to that burner, while the remaining vent holes are disconnected from their corresponding airflow distribution ports. This design prevents air leakage from the remaining vent holes and airflow distribution ports, ensuring that the airflow generated by the fan can be supplied exclusively to the currently working burner, ensuring accurate airflow distribution, improving airflow utilization, reducing fan energy consumption, and providing the burner with a stable and sufficient airflow. This ensures that gas combustion is always in optimal condition, with a stable flame, high combustion efficiency, and low pollutant emissions, making it more energy-efficient and environmentally friendly.

[0025] When two burners are working, the regulating valve core can be controlled to rotate so that the two vents are connected to the airflow distribution ports corresponding to the two burners. This allows one fan to supply secondary air to both burners simultaneously. Compared to the solution of configuring a fan for each burner separately, this blower system simplifies the air supply structure, saves installation space, reduces design and manufacturing costs, and improves the reliability and energy-saving effect of the stove. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a first schematic diagram of the blower system and burner provided in a specific embodiment of this utility model;

[0028] Figure 2 This is a second schematic diagram of the blower system and burner provided in a specific embodiment of this utility model;

[0029] Figure 3 This is an exploded view of the blower system and burner provided in a specific embodiment of this utility model;

[0030] Figure 4 This is a first structural schematic diagram of the blower system provided in a specific embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of the second structure of the blower system provided in a specific embodiment of this utility model.

[0032] In the picture:

[0033] 1. Fan; 2. Air volume regulating device; 3. Ventilation duct; 4. Flow divider;

[0034] 11. Installation Department;

[0035] 21. Adjusting seat; 22. Adjusting valve core; 23. Driving component;

[0036] 211. First airflow distribution port; 212. Second airflow distribution port; 213. Mounting port;

[0037] 221. Air intake;

[0038] 231. Connecting sleeve;

[0039] 31. First connector; 32. Second connector;

[0040] 41. Diverter pipe;

[0041] 10. First burner; 20. Second burner;

[0042] 101. Outer ring burner cap; 102. Inner ring burner cap; 103. Burner head; 104. Burner cap base; 105. Water tray;

[0043] 1031, First perforation; 1051, Second perforation. Detailed Implementation

[0044] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] like Figures 1 to 5 As shown, this embodiment provides a secondary air supply blower system that ensures accurate airflow distribution, improves flame stability and thermal efficiency, while reducing implementation costs and overall energy consumption, thus enhancing the energy-saving effect of the stove. This secondary air supply blower system includes a fan 1 and an airflow regulating device 2.

[0048] Among them, see Figure 1 , Figure 3 and Figure 4The airflow regulating device 2 includes an regulating seat 21 and a regulating valve core 22. The regulating seat 21 is provided with a valve cavity (not shown in the figure). The regulating valve core 22 is rotatably disposed in the valve cavity and located on the airflow path of the fan 1. The regulating seat 21 is provided with at least two airflow distribution ports that connect to the valve cavity. The end of the airflow distribution port away from the valve cavity is used to connect to the burner. The regulating valve core 22 is provided with vent holes that correspond one-to-one with the airflow distribution ports. When the regulating valve core 22 rotates, the vent holes can selectively connect or disconnect with the corresponding airflow distribution ports.

[0049] The secondary air supply blower system provided in this embodiment controls the rotation of the regulating valve core 22 within the valve cavity, enabling the vent on the regulating valve core 22 to selectively connect or disconnect with the corresponding airflow distribution port. When the vent is connected to the corresponding airflow distribution port, the airflow generated after the blower 1 starts can be delivered to the corresponding burner through the vent and airflow distribution port, thereby supplying air to the burner.

[0050] Specifically, when only one burner is operating, the regulating valve core 22 can be controlled to rotate so that only one vent hole is connected to the corresponding airflow distribution port of that burner, while the other vent holes are disconnected from their corresponding airflow distribution ports. This setting prevents air leakage from the other vent holes and airflow distribution ports, ensuring that the airflow generated by the fan 1 is entirely supplied to the currently operating burner. This ensures accurate airflow distribution, improves airflow utilization, reduces the energy consumption of the fan 1, and ensures a stable and sufficient airflow to the burner. Consequently, the combustion of the gas is always in its optimal state, resulting in a stable flame, high combustion efficiency, and low pollutant emissions, making it more energy-efficient and environmentally friendly.

[0051] When two burners are working, the regulating valve core 22 can be controlled to rotate so that the two vent holes are connected to the airflow distribution ports corresponding to the two burners, so that one fan 1 can supply secondary air to the two burners at the same time. Compared with the solution of configuring a fan 1 for each burner separately, this blower system can simplify the air supply structure, save installation space, reduce design and manufacturing costs, and improve the reliability and energy-saving effect of the stove.

[0052] In addition, when only one burner is working, only one vent is connected to the corresponding airflow distribution port, while the other vents are not connected to the corresponding airflow distribution ports. This can eliminate wind noise caused by air leakage, making the stove operate more quietly and improving the user experience.

[0053] Optionally, the regulating valve core 22 is provided with a first vent and a second vent, which are staggered in both the circumferential and axial directions. That is, the first vent and the second vent are not directly opposite each other radially or axially. This arrangement ensures that when the regulating valve core 22 rotates at a suitable angle within the valve cavity, the first vent (second vent) connects with the corresponding airflow distribution port, while the second vent (first vent) is completely offset from its corresponding airflow distribution port, i.e., not connected. In other words, when the first vent (second vent) connects with the corresponding airflow distribution port, the solid part of the regulating valve core 22 completely blocks the airflow distribution port corresponding to the second vent (first vent), and the second vent (first vent) is completely blocked by the inner wall of the valve cavity, preventing air leakage. This ensures that when a single burner is operating, the airflow generated by the fan 1 can be entirely supplied to the currently operating burner.

[0054] Furthermore, by controlling the rotation of the regulating valve core 22, different vents can be switched to connect or disconnect with their corresponding airflow distribution ports, achieving a purely mechanical switching of the air supply channel. This allows for precise supply of secondary air to different burners, significantly improving the overall energy efficiency of the stove. By setting a first and second ventilation hole on the regulating valve core 22, which are staggered axially and circumferentially, the requirement that only one ventilation hole connects to the corresponding airflow distribution port when a single burner is operating, preventing air leakage, is met. This also reduces manufacturing difficulty and the assembly precision requirements between the regulating valve core 22 and the regulating seat 21. The design is simple, low-cost, and has a low failure rate.

[0055] Optionally, see Figure 3 and Figure 4 The regulating seat 21 is provided with a first airflow distribution port 211 and a second airflow distribution port 212. The first airflow distribution port 211 can communicate with a first vent hole on the regulating valve core 22, and the second airflow distribution port 212 can communicate with a second vent hole on the regulating valve core 22. In this embodiment, the regulating valve core 22 has at least a first position, a second position, and a third position in the valve cavity.

[0056] When the regulating valve core 22 is in the first position, the first vent hole is directly connected to the first airflow distribution port 211, and the second vent hole is offset from and not connected to the second airflow distribution port 212. In this position, the blower 1 can supply air to the burner corresponding to the first airflow distribution port 211 independently. When the regulating valve core 22 is in the second position, the second vent hole is directly connected to the second airflow distribution port 212, and the first vent hole is offset from and not connected to the first airflow distribution port 211. In this position, the blower 1 can supply air to the burner corresponding to the second airflow distribution port 212 independently. When the regulating valve core 22 is in the third position, the first vent hole is connected to the first airflow distribution port 211, and the second vent hole is connected to the second airflow distribution port 212. In this position, one blower 1 can supply air to two burners simultaneously.

[0057] like Figure 1 , Figure 2 and Figure 3 As shown, taking a dual-burner stove as an example, there are two burners: a first burner 10 and a second burner 20. The rotation position of the regulating valve core 22 can be controlled according to the usage of the first burner 10 and the second burner 20. For example, when only the first burner 10 is used, the regulating valve core 22 can be rotated clockwise (counterclockwise) by a certain angle to switch to the first position, so that the first vent hole is connected to the first airflow distribution port 211, while the second vent hole is not connected to the second airflow distribution port 212. When only the second burner 20 is used, the regulating valve core 22 can be rotated counterclockwise (clockwise) by a certain angle to switch to the second position, so that the second vent hole is connected to the second airflow distribution port 212, while the first vent hole is not connected to the first airflow distribution port 211. This ensures that when a single burner is working, the fan 1 can supply secondary air to the currently working burner independently, preventing air leakage and wasted air volume, improving air volume utilization efficiency, and reducing energy consumption.

[0058] When the first burner 10 and the second burner 20 are used simultaneously, the regulating valve core 22 can be controlled to rotate and switch to the third position. The rotation direction and angle of the regulating valve core 22 can be controlled according to the current gear position of the first burner 10 and the second burner 20, as well as the relative gear positions, so that the first vent hole connects to the first airflow distribution port 211, and the second vent hole connects to the second airflow distribution port 212, enabling one fan 1 to simultaneously supply air to at least two burners. Furthermore, the operating power of the fan 1 can be adjusted to ensure that the supply air volume meets the combustion requirements of the two burners at the current gear position.

[0059] In some embodiments, when one of the vent holes is connected to the corresponding airflow distribution port and the other vent holes are not connected to the corresponding airflow distribution ports, the rotation angle of the regulating valve core 22 can be adjusted to adjust the connection area between the vent holes and the corresponding airflow distribution ports, so that the secondary air supply meets the current burner operating level requirements.

[0060] In some other alternative embodiments, if there are three burners, three vent holes can be provided on the regulating valve core 22, and three airflow distribution ports can be provided on the regulating seat 21 accordingly. By controlling the rotation of the regulating valve core 22 to connect one or more of the vent holes with the corresponding airflow distribution ports, the fan 1 can supplement secondary air to one burner alone, and the fan 1 can supplement secondary air to two or three burners at the same time.

[0061] Optionally, see Figure 1 , Figure 2 and Figure 3 The secondary air supply system also includes ventilation ducts 3 connected to at least two airflow distribution ports, with the end of the ventilation duct 3 furthest from the airflow distribution port connected to the corresponding burner. That is, the airflow generated by the fan 1 is delivered to the corresponding burner through the ventilation ducts 3, thereby supplying secondary air to the burner and improving combustion efficiency.

[0062] In some embodiments, the output end of the ventilation duct 3 can be placed in the area where the burner cap is located to supply secondary air for gas combustion and improve combustion efficiency.

[0063] In some embodiments, the ventilation duct 3 can be connected to the burner head 103. When the fan 1 is working, the airflow passes through the ventilation duct 3 to the burner head 103, so that the air mixes with the gas in the burner head 103 to ensure complete combustion of the gas.

[0064] Optionally, see Figure 3 and Figure 4 Each ventilation duct 3 is connected to a flow divider 4 at the end furthest from the airflow distribution port. The flow divider 4 is equipped with a flow divider pipe 41, which extends to the area where the burner cap is located. When the fan 1 is working, the airflow flows through the ventilation duct 3 to the flow divider pipe 41, and then through the flow divider pipe 41 to the area where the burner cap is located, providing secondary air for the combustion of the gas at the burner cap, ensuring complete combustion and improving combustion efficiency.

[0065] like Figure 4 As shown, one end of the ventilation duct 3 is provided with a first connector 31, and the other end is provided with a second connector 32. The first connector 31 is connected to the first airflow distribution port 211 (the second airflow distribution port 212), and the second connector 32 is connected to the air inlet of the diverter seat 4. Exemplarily, both the first connector 31 and the second connector 32 can be nuts. Threaded connectors are provided at the first airflow distribution port 211, the second airflow distribution port 212, and the air inlet of the diverter seat 4. The nuts are threadedly connected to the threaded connectors for easy assembly and disassembly.

[0066] Optionally, see Figure 2 , Figure 3 and Figure 4The burner includes an outer ring burner cap 101 and an inner ring burner cap 102 arranged coaxially and spaced apart. At least two diversion pipes 41 are spaced apart on the diversion seat 4. The outlet end of the diversion pipe 41 is located in the area between the outer ring burner cap 101 and the inner ring burner cap 102, and is used to supply secondary air to both the outer and inner ring burner caps 101 and 102. Arranging the diversion pipes 41 between the inner and outer ring burner caps 101 allows them to supply secondary air to both the outer and inner ring burner caps 101 and 102, thereby ensuring complete combustion of the gas in both the inner and outer ring gas paths of the stove, further improving the overall combustion efficiency of the burner. By providing at least two diversion pipes 41, sufficient air can be provided to meet the air volume requirements of the inner and outer ring burner caps 102 at different operating levels of the burner.

[0067] In this embodiment, two diversion pipes 41 are provided on the diversion seat 4. In other embodiments, one, three, or other equal numbers of diversion pipes 41 may also be provided. The number of diversion pipes 41 can be selected according to actual needs, and is not limited to the number and distribution methods listed above.

[0068] Optionally, see Figure 1 , Figure 2 and Figure 3 The stove includes a first burner 10 and a second burner 20. Both the first burner 10 and the second burner 20 include a burner head 103, a burner cap base 104, and a water tray 105. The burner head 103 is connected to a gas pipeline to supply gas. The burner cap base 104 is mounted on the burner head 103 to support the outer ring burner cap 101. The water tray 105 is mounted on the burner head 103 to collect liquids that overflow during cooking. Both the outer ring burner cap 101 and the inner ring burner cap 102 are provided with flame holes (such as strip holes or round holes) to form a flame. The inner ring burner cap 102 is located in the center and cooperates with the outer ring burner cap 101 to form an inner and outer double ring flame.

[0069] See Figure 3 and Figure 4 The burner head 103 is provided with a first perforation 1031, and the water pan 105 is provided with a second perforation 1051. The diversion pipe 41 passes through the first perforation 1031, the second perforation 1051 and the hole in the middle of the burner cap base 104 from the bottom of the burner head 103, so as to extend to the area between the outer ring burner cap 101 and the inner ring burner cap 102, so as to simultaneously provide secondary air to the inner ring burner cap 102 and the outer ring burner cap 101.

[0070] Optionally, see Figure 3 and Figure 4The airflow regulating device 2 also includes a drive component 23, which is connected to the regulating valve core 22 and is used to drive the regulating valve core 22 to rotate. The drive component 23 controls the rotation amplitude of the regulating valve core 22, so that the regulating valve core 22 rotates to a suitable position according to the working state of the burner, thereby realizing the electric control of the opening and closing of the vent and / or the connection area between the corresponding airflow distribution port and the vent.

[0071] For example, the drive unit 23 can be a stepper motor or other types of rotary motors, which can be selected according to actual needs. There is no limitation on the specific type of drive unit 23.

[0072] Optionally, see Figure 4 and Figure 5 The output end of the drive component 23 is provided with a connecting sleeve 231, and the regulating valve core 22 is provided with a connecting shaft (not shown in the figure). The connecting shaft is inserted into the connecting sleeve 231 and is circumferentially limited. Specifically, the output shaft of the drive component 23 is provided with a connecting sleeve 231. When the drive component 23 drives the output shaft to rotate, it drives the connecting shaft to rotate synchronously through the connecting sleeve 231, thereby driving the regulating valve core 22 to rotate.

[0073] For example, the connecting sleeve 231 is provided with a shaft hole, and the connecting shaft is inserted into the shaft hole. The cross-sectional shape of both the shaft hole and the connecting shaft is non-circular, so as to achieve circumferential limiting of the connecting shaft and the connecting sleeve 231, so that the regulating valve core 22 can rotate synchronously with the connecting sleeve 231. In other embodiments, the circumferential limiting can also be achieved between the connecting shaft and the connecting sleeve 231 by means of a key connection or the like.

[0074] Optionally, the regulating seat 21 is provided with a through hole that connects to the valve chamber, and the connecting sleeve 231 passes through the through hole and rotates in a sealing manner with the through hole, which can prevent air leakage at the connection between the regulating valve core 22 and the driving component 23, and further ensure that the airflow generated by the fan 1 can be fully supplied to the burner.

[0075] In some embodiments, the connecting shaft may be designed to pass through the through hole on the adjusting seat 21 and rotate in a sealing manner with the through hole, with the part of the connecting shaft extending out of the adjusting seat 21 being inserted into the connecting sleeve 231 and circumferentially limited.

[0076] Optionally, see Figure 4 The regulating seat 21 is provided with an installation port 213 communicating with the valve cavity, and the regulating valve core 22 is provided with an air inlet 221 communicating with the vent. The air outlet end of the blower 1 is connected to the installation port 213 and communicates with the air inlet 221. When the blower 1 is working, the airflow flows through the air inlet 221 to the valve core, and then through the vent to the corresponding airflow distribution port, so as to deliver it to the corresponding burner. In this embodiment, the air outlet end of the blower 1 is provided with a mounting part 11, which is sealed and inserted into the installation port 213 to prevent air leakage at the connection between the blower 1 and the installation port 213.

[0077] For example, a sealing ring can be provided on the mounting part 11 so that the mounting part 11 is in circumferential sealing contact with the inner wall of the mounting port 213.

[0078] Optionally, the air inlet 221 is a strip-shaped hole extending circumferentially along the regulating valve core 22, so that the air inlet 221 has a certain length in the circumferential direction, and even after the regulating valve core 22 rotates at a certain angle, the air outlet of the fan 1 can still maintain communication with the air inlet 221.

[0079] Optionally, a sealing structure is provided between the regulating valve core 22 and the cavity wall of the valve chamber to ensure a sealed rotational fit between the regulating valve core 22 and the valve chamber. With this configuration, when the regulating valve core 22 rotates within the valve chamber, the gap between the regulating valve core 22 and the valve chamber will not leak air, and the airflow can only pass through the vent to the corresponding airflow distribution port, improving airflow utilization.

[0080] For example, a labyrinth seal structure can be used between the valve cavity and the regulating valve core 22. The seal is achieved by relying on the airflow resistance generated by the labyrinth channel, without the need for additional sealing materials, and the sealing performance is reliable.

[0081] Of course, in other embodiments, the sealing structure can also be a sealing sleeve or the like that fitted over the regulating valve core 22, which can be selected according to actual needs.

[0082] This embodiment also provides a stove, including at least two burners and a blower system for supplying secondary air as described above, the blower system being able to supply secondary air to at least two burners.

[0083] The stove provided in this embodiment, after adopting the above-mentioned blower system, can supply secondary air to a single burner using blower 1, or it can supply secondary air to multiple burners simultaneously using blower 1. For example, when only one burner is working, the control valve core 22 is rotated so that only one vent hole is connected to the airflow distribution port corresponding to that burner, while the other vent holes are not connected to their corresponding airflow distribution ports. This prevents air leakage from the other vent holes and airflow distribution ports, ensures accurate airflow distribution, improves airflow utilization, reduces the energy consumption of blower 1, and ensures a stable and sufficient airflow to the burner. This guarantees that the gas combustion is always in the optimal state, with a stable flame, high combustion efficiency, and low pollutant emissions, making it more energy-efficient and environmentally friendly.

[0084] When two burners are working, the control regulating valve core 22 rotates to connect the two vent holes with the airflow distribution ports corresponding to the two burners, so that a blower 1 can simultaneously supply secondary air to the two burners. Compared with the solution of configuring a blower 1 for each burner separately, this blower system can simplify the air supply structure, reduce design and manufacturing costs, and improve the reliability and energy-saving effect of the stove.

[0085] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A blower system for supplying secondary air, characterized in that, include: Fan (1); The air volume regulating device (2) includes a regulating seat (21) and a regulating valve core (22). The regulating seat (21) is provided with a valve cavity, and the regulating valve core (22) is rotatably disposed in the valve cavity and located on the airflow path of the fan (1). The regulating seat (21) is provided with at least two airflow distribution ports that connect to the valve chamber. The end of the airflow distribution port away from the valve chamber is used to connect to the burner. The regulating valve core (22) is provided with vent holes that correspond one-to-one with the airflow distribution ports. When the regulating valve core (22) rotates, the vent holes can selectively connect or disconnect with the corresponding airflow distribution ports.

2. The blower system for supplying secondary air according to claim 1, characterized in that, The regulating valve core (22) is provided with a first vent hole and a second vent hole, which are staggered in both the circumferential and axial directions of the regulating valve core (22).

3. The blower system for supplying secondary air according to claim 2, characterized in that, The regulating seat (21) is provided with a first airflow distribution port (211) and a second airflow distribution port (212), and the regulating valve core (22) has at least a first position, a second position and a third position in the valve cavity; When the regulating valve core (22) is in the first position, the first vent hole is directly connected to the first airflow distribution port (211), and the second vent hole is offset from and not connected to the second airflow distribution port (212); When the regulating valve core (22) is in the second position, the second vent hole is directly connected to the second airflow distribution port (212), and the first vent hole is offset from and not connected to the first airflow distribution port (211); When the regulating valve core (22) is in the third position, the first vent is connected to the first airflow distribution port (211), and the second vent is connected to the second airflow distribution port (212).

4. The blower system for supplying secondary air according to claim 1, characterized in that, The secondary air supply system also includes ventilation ducts (3) that are connected one-to-one with at least two of the airflow distribution ports, and the end of the ventilation duct (3) away from the airflow distribution port is connected to the corresponding burner.

5. The blower system for supplying secondary air according to claim 4, characterized in that, Each of the ventilation ducts (3) is connected to a flow divider (4) at the end away from the airflow distribution port. A flow divider (41) is provided on the flow divider (4) and extends to the area where the burner cap is located.

6. The blower system for supplying secondary air according to claim 5, characterized in that, The burner includes an outer ring burner cap (101) and an inner ring burner cap (102) that are coaxial and spaced apart. At least two of the flow dividers (41) are spaced apart on the flow divider seat (4). The outlet of the flow divider (41) is located in the area between the outer ring burner cap (101) and the inner ring burner cap (102) and is used to supply secondary air to the outer ring burner cap (101) and the inner ring burner cap (102).

7. The blower system for supplying secondary air according to any one of claims 1-6, characterized in that, The air volume regulating device (2) also includes a driving component (23), the output end of which is provided with a connecting sleeve (231), and the regulating valve core (22) is provided with a connecting shaft, which is inserted into the connecting sleeve (231) and circumferentially limited.

8. The blower system for supplying secondary air according to any one of claims 1-6, characterized in that, A sealing structure is provided between the regulating valve core (22) and the cavity wall of the valve chamber so that the regulating valve core (22) and the valve chamber are in a sealed rotational fit.

9. The blower system for supplying secondary air according to any one of claims 1-6, characterized in that, The regulating seat (21) is provided with an installation port (213) that communicates with the valve cavity, and the regulating valve core (22) is provided with an air inlet (221) that communicates with the vent hole. The air outlet of the fan (1) is connected to the installation port (213) and communicates with the air inlet (221).

10. A stove, characterized in that, It includes at least two burners and a blower system for supplying secondary air as described in any one of claims 1-9, the blower system being capable of supplying secondary air to at least two of the burners.

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