Air door plate, air door plate assembly and combustor
By designing the annular flange structure and welding technology of the damper plate and the ejector tube, the airtightness problem at the connection between the damper plate and the ejector tube is solved, close fitting and efficient welding are achieved, and the production efficiency and safety of the gas stove are improved.
Patent Information
- Application Number
- CN202422705817.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-06
AI Technical Summary
There is a gap at the connection between the damper plate and the ejector tube of the existing gas stove, which makes air tightness testing difficult and welding difficult, affecting production efficiency and safety.
A damper plate structure is designed, including a base plate and an annular flange structure. The annular flange is in 360-degree contact with the ejector tube inlet and is tightly fitted by welding to ensure no gaps. The brazing process is used for full welding.
The air damper plate and the ejector tube are closely matched, the difficulty of air tightness detection is reduced, the production efficiency and welding quality are improved, and the safety is enhanced.
Smart Images
Figure CN223319076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of burners, in particular to an air door plate and a burner. Background Art
[0002] A gas stove is a combustion device that ignites a mixture of gas and air to generate a flame, heating items placed on the stove, such as pots and pans. A damper plate, located at the air inlet end of the stove's ejector pipe, controls the amount of primary air drawn into the ejector pipe.
[0003] The ejector tube needs to be expanded, narrowed, bent, and other processes during the production process, which inevitably has the risk of cracking. During the combustion process, gas leakage will occur, which will cause serious accidents. Therefore, during the production process, we need to check the air tightness of the ejector tube. The existing gas stove generally has an inner ejector tube and an outer ejector tube. The existing damper plate is an integrated structure that can directly connect the inner ejector tube and the outer ejector tube at the same time. See the attached Figure 1 Because the damper plate 100 is connected to two ejector tubes 200 at the same time, the flange 101 of the existing damper plate 100 is in contact with only about half of the area of the entrance of each ejector tube 200. The damper plate 100 is located at position 300 between the two ejector tubes. Because there is no contact with the flange structure and this position is difficult to weld in place, a gap will be generated between the damper plate and the ejector tube, which will cause air leakage when checking the air tightness, thereby greatly increasing the difficulty of air tightness detection. Utility Model Content
[0004] In view of this, an object of the present invention is to provide a damper plate and a burner that are conducive to air tightness detection.
[0005] The technical solution used in the present invention is: to provide a damper plate, including a base plate structure and an annular flange structure surrounding the base plate structure, the annular flange structure protrudes relative to the base plate structure toward the direction of installing the ejector tube, and an ejector tube installation position is formed in the flange structure, and an air inlet and an air intake are provided on the base plate structure, the air inlet is arranged in the middle of the base plate structure, and the air intake is located on the outside of the air inlet.
[0006] Preferably, the air inlet includes a first air inlet and a second air inlet, the first air inlet and the second air inlet are symmetrically arranged relative to the air inlet, and there is a connecting portion between the first air inlet and the second air inlet, the connecting portion is fan-shaped, and a plurality of adjustment holes are provided on the outer side of the connecting portion, and the adjustment holes are arranged circumferentially along the damper plate.
[0007] Preferably, the bottom plate structure is further provided with a plurality of adjustment holes, the apertures of the adjustment holes are smaller than the aperture of the air inlet, and the adjustment holes are of the same size.
[0008] The present invention also provides a damper plate assembly, comprising a first damper plate, a second damper plate and a connecting structure, wherein the first damper plate and the second damper plate are both the damper plates described in any one of the above items, and the first damper plate and the second damper plate are respectively connected to the two sides of the connecting structure, one side of the connecting structure is connected to the outer wall of the annular flange structure of the first damper plate, and the other side is connected to the outer wall of the annular flange structure of the second damper plate.
[0009] Preferably, the first damper plate and the second damper plate are symmetrically arranged relative to the connecting structure, or the first damper plate and the second damper plate have the same structure and size.
[0010] Preferably, the connecting structure is welded to outer walls of the annular flange structures of the first damper plate and the second damper plate, respectively.
[0011] The utility model also provides a burner, comprising the damper plate and the ejector tube, wherein the air inlet end of the ejector tube is installed in the ejector tube installation position, so that the annular flange structure of the damper plate surrounds the air inlet end of the ejector tube.
[0012] Preferably, a welding structure is provided at a connection between the annular flange structure of the damper plate and the ejector tube, and the welding structure surrounds the ejector tube.
[0013] Preferably, the burner also includes a flame divider and an outer ring fire cover, the gas outlet end of the ejector tube is connected to the flame divider, the outer ring fire cover is located above the flame divider, the ejector tube includes an ejector tube body and a sleeve in sequence along the gas flow direction, the wall thickness of the sleeve is greater than the wall thickness of the ejector tube body, the flame divider has a step portion, and the end face of the sleeve is sealed with the step portion.
[0014] Preferably, the burner also includes a burner head bracket, which has an ejector tube mounting position, and the ejector tube mounting position has a flanging structure that is flipped toward the ejector tube main body, and the ejector tube main body has a flared section at the tail end, and the head end of the sleeve is inserted into the flanging hole formed by the flanging structure and then passes through the flanging hole to extend into the flared section of the ejector tube main body; the lower end face of the flanging structure is cooperatively connected with the upper end face of the flared section, and the lower end face of the flanging structure is welded to the upper end face of the flared section.
[0015] The air damper plate and the burner provided by the utility model ensure the close fit between the air damper plate and the inlet of the ejector tube without gaps, thus solving the problem of air tightness detection, and at the same time, the welding is convenient, thus greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size. The emphasis is on illustrating the subject matter of the present invention.
[0017] Figure 1 The figure is a schematic diagram of the connection structure between the damper plate and the ejector tube in the prior art.
[0018] Figure 2 This is a schematic diagram of the damper plate structure provided by the utility model.
[0019] Figure 3 This is a schematic diagram of the coordination structure of the damper plate and the ejector tube provided by the utility model.
[0020] Figure 4 This is a schematic structural diagram of the damper plate assembly provided by the utility model.
[0021] Figure 5 This is a schematic diagram of the coordination structure of the damper plate assembly and the ejector tube provided by the utility model.
[0022] Figure 6 This is a schematic diagram of the burner structure provided by the utility model.
[0023] Figure 7 This is a schematic diagram of the ejector tube structure provided by the utility model.
[0024] Figure 8 This is a schematic diagram of the burner head bracket structure provided by the utility model.
[0025] Figure 9 This is a schematic diagram of the cross-sectional structure of the burner provided by the utility model. DETAILED DESCRIPTION
[0026] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments given do not limit the present invention. In this embodiment, it should be understood that the directions or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention.
[0027] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.
[0028] Please refer to Figures 1 to 9 , an embodiment of the present invention provides a damper plate 10, comprising a base plate structure 101 and an annular flange structure 102 surrounding the base plate structure 101, the annular flange structure 102 protruding relative to the base plate structure 101 in the direction of installing the ejector tube 20, and an ejector tube installation position is formed in the flange structure 102, the base plate structure 101 is provided with an air inlet 1011 and an air inlet 1012, the air inlet is located in the middle of the base plate structure 101, and the air inlet 1012 is located on the outside of the air inlet 1011, and the outside referred to here refers to the outside relative to the center of the damper plate 10, that is, the outside is closer to the outer circle relative to the center of the damper plate 10, which can be referred to Figure 1 Come to understand.
[0029] The embodiment of the present invention provides a new damper plate 10, which has an annular flange structure 102 that surrounds a base structure 101. The annular flange structure 102 is arranged so as to be in 360° contact with the inlet of the ejector tube 20, thereby ensuring a 360° tight fit between the damper plate 10 and the inlet of the ejector tube 20 without any gap. Figure 3 , solving the problem of air tightness testing. Compared with existing structures, this damper plate structure is easier to weld, greatly improving production efficiency. In addition, this damper plate structure can be fully welded using a brazing process, further reducing the gap between the damper plate and the ejector tube, which can reduce the difficulty of air tightness testing of the ejector tube.
[0030] refer to Figure 2 In a preferred embodiment, the air inlet 1012 includes a first air inlet and a second air inlet, the first air inlet and the second air inlet are symmetrically arranged relative to the air inlet 1011, and there is a connecting portion 1014 between the first air inlet and the second air inlet, and the connecting portion 1014 is fan-shaped.
[0031] refer to Figure 2 In a preferred embodiment, the base plate structure 101 further includes a plurality of adjustment holes 1013. The diameter of the adjustment holes 1013 is smaller than that of the air inlet 1011. Furthermore, the adjustment holes 1013 are of the same size. The arrangement of the adjustment holes 1013 enables the burner's ejection performance to be controlled in conjunction with the adjustment plate. Furthermore, the plurality of adjustment holes 1013 are disposed on the outer side of the connecting portion and are arranged circumferentially around the main body.
[0032] refer to Figure 4 The present invention also provides a damper plate assembly, including a first damper plate 10a, a second damper plate 10b and a connecting structure 30. The first damper plate 10a and the second damper plate 10b both adopt the structure of the damper plate referred to in any of the above embodiments. The first damper plate 10a and the second damper plate 10b are respectively connected to the two sides of the connecting structure 30. One side of the connecting structure 30 is connected to the outer wall of the annular flange structure of the first damper plate 10a, and the other side is connected to the outer wall of the annular flange structure of the second damper plate 10b.
[0033] refer to Figure 4 In a preferred embodiment, the connecting structure 30 is welded to the outer wall of the annular flange structure of the first damper plate 10a and the second damper plate 10b. This ensures that both the first damper plate 10a and the second damper plate 10b have an annular flange structure, while also allowing the two damper plates to be integrated into a single unit for easy installation.
[0034] refer to Figure 4 In a preferred embodiment, the first damper plate 10a and the second damper plate 10b are symmetrically arranged with respect to the connecting structure, or the first damper plate 10a and the second damper plate 10b have the same structure and size.
[0035] refer to Figure 3-6 The present invention further provides a burner comprising the damper plate 10 and the ejector tube 20 as described in any of the above embodiments. The air inlet end of the ejector tube 20 is mounted in the ejector tube mounting position, such that the annular flange structure 102 of the damper plate 10 surrounds the air inlet end of the ejector tube 20.
[0036] In a further preferred embodiment, the annular flange structure 102 of the damper plate 10 and the ejector tube 20 are fully welded by a brazing process, and a welding structure is formed at the connection between the two, and the welding structure surrounds the ejector tube.
[0037] refer to Figure 5 The burner of the present invention has two damper plates and two ejection tubes, the damper plates are the first damper plate 10a and the second damper plate 10b, the ejection tubes are the first ejection tube 20a and the second ejection tube 20b, the first damper plate 10a is connected to the first ejection tube 20a, and the second damper plate 10b is connected to the second ejection tube 20b.
[0038] refer to Figure 6 and Figure 7 In a preferred embodiment, the burner further includes an ignition divider 40 and an outer ring fire cover 90. The gas outlet end of the ejector tube 20 is connected to the ignition divider 40. The outer ring fire cover 90 is located above the ignition divider 40. The ejector tube 20 includes an ejector tube body 201 and a sleeve 202 in sequence along the direction of gas flow. The wall thickness of the sleeve 202 is greater than the wall thickness of the ejector tube body 201.
[0039] In a preferred embodiment, the ignition distributor has a step portion, and the end surface of the sleeve 202 cooperates with the step portion to form a seal.
[0040] The present invention is also equipped with a relatively thick sleeve 202. Because the sleeve 202 end face has a relatively thick wall, the sleeve 202 and the ignition divider 40 can be sealed by the end face, which better ensures that the sleeve 202 and the ignition divider 40 are not prone to air leakage. At the same time, because the present invention adopts a sleeve 202 with a relatively thick wall, the length of the sleeve 202 extending out of the fixed bracket 50 can be shortened, which can also solve the problem of the difficulty in taking and placing the ignition divider, and avoid the occurrence of fire leakage and safety accidents if the ignition divider is not put in place. The ignition divider has a simple structure, is sealed with the end face of the burner base, is not prone to air leakage, is easy to take and place, and greatly improves the user experience and safety performance. Through the fixed installation method of the flange structure 502 and the sleeve 202, air leakage can be further avoided.
[0041] refer to Figure 5-6 and Figure 8-9 In a preferred embodiment, the burner further includes a burner bracket 50, which has an ejector tube mounting position. The ejector tube mounting position has a flange structure 502 that extends toward the ejector tube body. In a further preferred embodiment, the flange structure 502 is perpendicular to the main body 503 of the fixed bracket. The ejector tube body 20 has a flared section 2014 at its tail end. The leading end of the sleeve 202 is inserted into the flange hole formed by the flange structure 502, then passes through the flange hole and extends into the flared section 2014 of the ejector tube body. The lower end surface of the flange structure 502 is matingly connected to the upper end surface of the flared section, and the lower end surface of the flange structure is welded to the upper end surface of the flared section. This further ensures a seal between the sleeve 201 and the ejector tube body 201.
[0042] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0043] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A damper plate, characterized in that: It includes a base plate structure and an annular flange structure that surrounds the base plate structure. The annular flange structure protrudes relative to the base plate structure toward the direction of installing the ejector tube. An ejector tube installation position is formed in the flange structure. An air inlet and an air inlet are provided on the base plate structure. The air inlet is located in the middle of the base plate structure, and the air inlet is located on the outside of the air inlet.
2. The damper plate according to claim 1, wherein: The air inlet includes a first air inlet and a second air inlet, the first air inlet and the second air inlet are symmetrically arranged relative to the air inlet, and there is a connecting portion between the first air inlet and the second air inlet, the connecting portion is fan-shaped, and a plurality of adjustment holes are provided on the outer side of the connecting portion, and the adjustment holes are arranged circumferentially along the damper plate.
3. The damper plate according to claim 1, wherein: The bottom plate structure is further provided with a plurality of adjustment holes, the apertures of the adjustment holes being smaller than the aperture of the air inlet, and the adjustment holes being of the same size.
4. A damper plate assembly, characterized in that: It includes a first air flap, a second air flap and a connecting structure, the first air flap and the second air flap are the air flaps according to any one of claims 1 to 3, the first air flap and the second air flap are respectively connected to the two sides of the connecting structure, one side of the connecting structure is connected to the outer wall of the annular flange structure of the first air flap, and the other side is connected to the outer wall of the annular flange structure of the second air flap.
5. The damper plate assembly according to claim 4, wherein: The first damper plate and the second damper plate are symmetrically arranged relative to the connecting structure, or the first damper plate and the second damper plate have the same structure and size.
6. The damper plate assembly according to claim 4, wherein: The connecting structure is welded to the outer walls of the annular flange structures of the first damper plate and the second damper plate respectively.
7. A burner, characterized in that: It comprises the damper plate and ejector tube according to any one of claims 1 to 3, wherein the air inlet end of the ejector tube is installed in the ejector tube installation position, so that the annular flange structure of the damper plate surrounds the air inlet end of the ejector tube.
8. The burner according to claim 7, wherein A welding structure is provided at a connection between the annular flange structure of the damper plate and the ejector tube, and the welding structure surrounds the ejector tube.
9. The burner according to claim 7, wherein The burner also includes a flame divider and an outer ring fire cover. The gas outlet end of the ejector tube is connected to the flame divider. The outer ring fire cover is located above the flame divider. The ejector tube includes an ejector tube body and a sleeve in sequence along the direction of gas flow. The wall thickness of the sleeve is greater than the wall thickness of the ejector tube body. The flame divider has a step portion, and the end face of the sleeve cooperates with the step portion to seal.
10. The burner according to claim 9, characterized in that The burner also includes a burner head bracket, which has an ejector tube mounting position. The ejector tube mounting position has a flange structure that is flipped toward the ejector tube main body. The ejector tube main body has a flared section at the tail end. The head end of the sleeve is inserted into the flange hole formed by the flange structure and then passes through the flange hole to extend into the flared section of the ejector tube main body; the lower end face of the flange structure is cooperatively connected with the upper end face of the flared section, and the lower end face of the flange structure is welded to the upper end face of the flared section.