Combustor and stove comprising same

Abstract

The burner comprises a nozzle, an air flap and an injection pipe, the burner further comprises a valve body mounting seat and a connecting part, the connecting part is arranged on the outer side wall of a pipe opening of the injection pipe and extends in the direction relatively far away from the injection pipe, the valve body mounting seat is arranged on the side surface of the nozzle, and the valve body mounting seat is arranged on the outer side wall of the nozzle and extends in the direction relatively far away from the injection pipe. The end, facing the injection pipe, of the nozzle is located on the outer side of a pipe opening of the injection pipe. The air flap is directly connected with the nozzle, and the distance between the air flap and a pipe opening of the injection pipe is larger than 0. According to the burner, the valve body mounting seat and the connecting part are arranged in the burner, so that the nozzle can be butted without extending into the injection pipe, the coaxiality of the nozzle and the injection pipe is ensured, the temperature of the nozzle is reduced, and the injection capacity of the burner is improved.

Description

Technical Field

[0001] This utility model relates to the field of stoves, and in particular to a burner and a stove including the burner. Background Technology

[0002] Most current cooktops use a direct-insertion installation method for the gas nozzle and injector tube, where the nozzle end on the valve body side is directly inserted into the positioning through-hole of the injector tube opening on the burner side. During the development of high-efficiency cooktops, the problem of insufficient injector capacity is frequently encountered. Firstly, the direct-insertion connection between the nozzle and injector tube leads to assembly misalignment, causing the gas jet to tilt and impact the injector tube wall, resulting in reduced injector capacity. Secondly, the direct contact between the nozzle and injector tube allows heat from the burner to be transferred to the nozzle through the injector tube, causing excessive nozzle temperature rise. High temperatures reduce gas flow, further decreasing the burner's injector capacity and posing safety hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the deficiency of insufficient ejection capacity of burners in the prior art, and to provide a burner and a stove containing the burner.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A burner includes a nozzle, a damper, and an ejector tube. The burner also includes a valve body mounting seat and a connecting portion. The connecting portion is disposed on the outer side wall of the ejector tube orifice and extends in a direction relatively away from the ejector tube. The valve body mounting seat is disposed on the side surface of the nozzle and is detachably connected to the end of the connecting portion relatively away from the ejector tube. The end of the nozzle facing the ejector tube is located outside the orifice of the ejector tube.

[0006] The damper plate is connected to the nozzle or the valve body mounting base, and the distance between the damper plate and the inlet of the ejector tube is greater than 0.

[0007] In this technical solution, by setting a valve body mounting seat and a connecting part, the connecting part extends from the outer wall of the ejector tube away from the ejector tube. The valve body mounting seat is connected to the end of the connecting part that is relatively far from the ejector tube, and the nozzle is then connected to the valve body mounting seat. The nozzle does not extend into the ejector tube. On the one hand, the connection between the nozzle and the ejector tube via the valve body mounting seat ensures coaxiality between the nozzle and the ejector tube, preventing the gas jet from tilting and impacting the ejector tube wall, thus improving the ejection performance of the burner. On the other hand, the valve body mounting seat for mounting the nozzle is connected to the ejector tube at the end of the connecting part that is relatively far from the ejector tube, eliminating the need for the nozzle to extend into the ejector tube for docking. Furthermore, in this connection scheme, the heat from the ejector tube is transferred to the nozzle through the connecting part and the valve body mounting seat, resulting in a longer heat transfer path. This reduces the heat directly transferred from the high-temperature area on one side of the ejector tube to the nozzle. Additionally, the damper plate does not contact the ejector tube and also provides insulation for the nozzle, preventing nozzle overheating and further improving the ejection performance of the burner.

[0008] At the same time, with improved ejection performance, more cold air will approach the nozzle, carrying away the heat near the nozzle and forming a virtuous cycle.

[0009] Preferably, on the side of the nozzle, the damper has a through hole penetrating its two opposite surfaces, the through hole extending in a direction that is not parallel to the axial direction of the nozzle.

[0010] In this technical solution, by providing a through hole on the damper plate corresponding to the position beside the nozzle, and the extension direction of the through hole being non-parallel to the axial direction of the damper plate, on the one hand, the through hole can increase the air intake area of ​​the damper plate, thereby improving the ejector performance of the burner; on the other hand, by setting the through hole to be non-parallel to the axial direction of the nozzle, it can effectively prevent hot air from the ejector tube side from flowing directly to the valve body side of the burner. Specifically, because the extension direction of the through hole is not parallel to the axial direction of the nozzle, if hot air passes through the through hole, it will diffuse radially towards the nozzle, rather than flowing directly along the axial direction of the nozzle to the valve body behind it.

[0011] Preferably, there are multiple through holes, and the multiple through holes are evenly distributed along the circumference of the nozzle.

[0012] Preferably, the centers of the through holes are distributed on a circle centered at the intersection of the axis of the nozzle and the damper plate, and the extension direction of each through hole is tangent to the circle.

[0013] Preferably, the damper can move along the axial direction of the nozzle to change the distance between the damper and the inlet of the ejector tube.

[0014] Preferably, by setting the damper to be able to move along the axial direction of the nozzle, the primary air intake can be controlled, thereby adjusting the burner's ejection capability.

[0015] Preferably, the end of the nozzle facing the ejector tube is in the same vertical plane as the opening of the ejector tube.

[0016] In this technical solution, the end of the nozzle facing the ejector tube is in the same vertical plane as the opening of the ejector tube. That is to say, the nozzle just does not extend into the ejector tube, thus avoiding the nozzle being too far from the ejector tube and reducing the ejection performance.

[0017] Preferably, the valve body mounting base and the connecting portion are detachably connected by screws.

[0018] Preferably, the damper is threadedly connected to the nozzle or the valve body mounting seat.

[0019] Preferably, the diameter of the damper plate is greater than or equal to the outer diameter of the ejector tube opening.

[0020] In this technical solution, by setting the diameter of the damper plate to be greater than or equal to that of the ejector tube, heat radiation from the ejector tube can be effectively blocked.

[0021] Preferably, the diameter of the damper plate is equal to the outer diameter of the ejector tube opening.

[0022] A stove comprising a burner as described above.

[0023] The positive and progressive effects of this utility model are as follows:

[0024] (1) By setting a valve body mounting seat and a connecting part, the connecting part extends from the outer wall of the ejector tube away from the ejector tube. The nozzle is connected to the end of the connecting part that is away from the ejector tube through the valve body mounting seat, so that the nozzle can be docked without extending into the ejector tube, ensuring the coaxiality of the nozzle and the ejector tube. At the same time, it can extend the path of heat transfer from the ejector tube to the nozzle, reduce the nozzle temperature, and thus improve the ejection capability of the burner.

[0025] (2) The damper plate is connected to the nozzle or valve body mounting seat and does not contact the nozzle opening, so that the damper plate also has a heat insulation effect on the nozzle, thereby preventing the nozzle from heating up and improving the combustion performance of the burner. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the injector tube and nozzle of a burner according to an embodiment of the present invention.

[0027] Figure 2 This is a cross-sectional structural diagram of the injector tube and nozzle of a burner according to an embodiment of the present invention.

[0028] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0029] Figure 4 This is a schematic diagram of the nozzle portion of a burner according to an embodiment of the present invention.

[0030] Figure 5 This is a three-dimensional structural diagram of a damper plate according to an embodiment of the present invention.

[0031] Figure 6 This is a front view schematic diagram of a damper plate according to an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] Burner 100

[0034] Nozzle 1

[0035] Nozzle body 11

[0036] Nozzle seat 12

[0037] ejector tube 2

[0038] Connecting part 21

[0039] Air damper plate 3

[0040] Through hole 31

[0041] 32 relief hole

[0042] Valve body mounting base 4

[0043] Screw 5

[0044] First gas passage 61

[0045] Second gas passage 62

[0046] Valve body 7 Detailed Implementation

[0047] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0048] like Figures 1-6 As shown, this embodiment provides a burner 100. In the area before its gas chamber, it mainly includes a nozzle 1, a damper 3, and an ejector tube 2. Gas from the external gas pipeline is injected into the inlet of the ejector tube 2 only through the nozzle 1. The inner wall structure of the ejector tube 2 utilizes the flowing gas to eject air from outside the inlet, mixing the gas with air before it is delivered to the gas chamber and further burned at the burner holes to achieve heating. The damper 3 is also provided corresponding to the inlet of the ejector tube 2, used to partially block the inlet to control the airflow.

[0049] In addition, the burner 100 in this embodiment further includes a valve body mounting base 4 and a connecting portion 21, such as Figure 1 , Figure 2 and Figure 3 As shown, the connecting part 21 is disposed on the outer wall of the inlet of the ejector tube 2 and extends in a direction relatively away from the ejector tube 2. The valve body mounting seat 4 is disposed on the side surface of the nozzle 1 and is detachably connected to the end of the connecting part 21 that is relatively away from the ejector tube 2. The end of the nozzle 1 facing the ejector tube 2 is located outside the inlet of the ejector tube 2. The damper plate 3 is directly connected to the nozzle 1, and the distance between the damper plate 3 and the inlet of the ejector tube 2 is greater than 0. That is to say, the nozzle 1 does not extend into the interior of the ejector tube 2, and the nozzle 1 is connected and fixed to the ejector tube 2 through the valve body mounting seat 4.

[0050] By setting a valve body mounting seat 4 and a connecting part 21, the connecting part 21 extends from the outer wall of the ejector tube 2 away from the ejector tube 2, and the valve body mounting seat 4 is connected to the end of the connecting part 21 that is away from the ejector tube 2. The nozzle 1 is then connected to the valve body mounting seat 4, and the nozzle 1 does not extend into the interior of the ejector tube 2. On the one hand, the nozzle 1 is connected to the ejector tube 2 through the valve body mounting seat 4, which ensures the coaxiality between the nozzle 1 and the ejector tube 2, avoids the gas jet from tilting and hitting the wall of the ejector tube 2, and improves the ejection performance of the burner 100. On the other hand, the valve body mounting seat 4 for mounting the nozzle 1 is connected to the ejector tube 2 at the end of the connecting part 21 that is relatively far away from the ejector tube 2. This ensures that the nozzle 1 does not directly contact the ejector tube 2, nor does it extend into the ejector tube 2. Furthermore, the heat from the ejector tube 2 is transferred to the nozzle 1 through the valve body mounting seat 4 via a longer path, which can reduce the heat directly transferred from the high-temperature area on one side of the ejector tube 2 to the nozzle 1. Also, the damper plate 3 does not contact the ejector tube 2, and the damper plate 3 also has a heat insulation effect on the nozzle 1, thereby preventing the nozzle 1 from heating up and thus improving the ejection performance of the burner 100.

[0051] At the same time, with the improved ejection performance, more cold air will approach nozzle 1, carrying away the heat near nozzle 1 and forming a virtuous cycle.

[0052] Of course, since the nozzle 1 is connected to the valve body mounting base 4, and neither the nozzle 1 nor the valve body mounting base 4 is in direct contact with the ejector tube 2, in other embodiments, the damper plate 3 can also be directly connected to the valve body mounting base 4, and the damper plate 3 can be fixed while preventing it from contacting the ejector tube 2.

[0053] Specifically, in this embodiment, as Figures 1-4 As shown, the burner 100 has three gas channels, including two first gas channels 61 and one second gas channel 62. Each gas channel includes a nozzle 1 and a corresponding ejector tube 2. The second gas channel 62 has a larger gas flow rate; therefore, as... Figure 2 , Figure 3and Figure 4 As shown, the nozzle 1 of the second gas passage 62 is provided with a nozzle seat 12 and two nozzle bodies 11. The two nozzle bodies 11 are disposed in the nozzle seat 12, and the nozzle seat 12 is connected to the valve body mounting seat 4 by screws 5. Meanwhile, as... Figure 4 , Figure 5 and Figure 6 As shown, the damper plate 3 of the third gas passage has a through hole 31 penetrating its two opposing surfaces. The through hole 31 is located beside the nozzle 1, and the extending direction of the through hole 31 is not parallel to the axial direction of the nozzle 1. That is to say, the through hole 31 on the damper plate 3 mentioned here is not a clearance hole 32 for the nozzle 1 or gas to pass through, but refers to a through hole 31 provided beside the clearance hole 32, whose extending direction is not parallel to the axial direction of the nozzle 1. By providing a through hole 31 on the damper plate 3 at a position corresponding to the side of the nozzle 1, and the extending direction of the through hole 31 is not parallel to the axial direction of the damper plate 3, on the one hand, the through hole 31 can increase the air intake area of ​​the damper plate 3, thereby improving the injection performance of the burner 100. On the other hand, by setting the through hole 31 to be non-parallel to the axial direction of the nozzle 1, it is possible to effectively prevent hot air from the side of the ejector tube 2 from flowing directly to the valve body 7 side of the burner 100. Specifically, since the extension direction of the through hole 31 is not parallel to the axial direction of the nozzle 1, if hot air passes through the through hole 31, it will diffuse radially towards the nozzle 1 instead of flowing directly along the axial direction of the nozzle 1 to the valve body 7 on the rear side.

[0054] Specifically in this embodiment, such as Figure 6 As shown, there are 10 through holes 31, which are evenly distributed along the circumference of the nozzle 1. Furthermore, the centers of the through holes 31 are all located on a circle centered at the intersection of the axis of the nozzle 1 and the damper plate 3, and the extension direction of each through hole 31 is tangent to the circle. Specifically, Figure 6 This is a front view schematic diagram of the damper plate 3. The arrows in the figure are projections of the extension direction of the through hole 31 onto the front view direction of the damper plate 3. As can be seen from the figure, the orientation of each through hole 31 is different.

[0055] Of course, in other embodiments, the purpose of heat insulation can be achieved by not providing through holes 31 on the damper plate 3. Or in more embodiments, the number of through holes 31 can be set to other values, such as 4, 8, etc., which will not be elaborated here.

[0056] Of course, in other embodiments, each gas passage of the burner 100 may be provided with a damper plate 3 having a through hole 31, which will not be described in detail here.

[0057] In this embodiment, the damper plate 3 can move axially along the nozzle 1 to change the distance between the damper plate 3 and the inlet of the ejector tube 2. That is, the damper plate 3 and the nozzle 1 are not integrally formed or welded together, but are adjustablely connected. Specifically, the damper plate 3 and the nozzle 1 are connected by threads. The damper plate 3 has a clearance hole 32, the inner circumferential side of which has threads. The outer circumferential surface of the nozzle 1 also has threads that match the inner circumferential side of the clearance hole 32. The damper plate 3 can be moved axially along the nozzle 1 by rotating it. Figure 3 As shown, because the damper plate 3 is relatively thin, in order to ensure a better threaded connection between the damper plate 3 and the nozzle 1, the periphery of the clearance hole 32 of the damper plate 3 is thickened along the axial direction of the nozzle 1, so that the inner periphery of the clearance hole 32 has multiple threads to facilitate the connection between the damper plate 3 and the nozzle 1. By setting the damper plate 3 to be able to move along the axial direction of the nozzle 1, the primary air intake can be controlled, and the injection capability of the burner 100 can be adjusted.

[0058] Of course, in other embodiments, when the damper plate 3 is connected to the valve body mounting base 4, the damper plate 3 and the valve body mounting base 4 can also be connected by threads, which will not be elaborated here.

[0059] Meanwhile, the connecting part 21 and the valve body mounting seat 4 are detachably connected. Since both the connecting part 21 and the valve body mounting seat 4 are relatively wide components, in this embodiment, threaded holes are provided on both the connecting part 21 and the valve body mounting seat 4, and the detachable connection between the connecting part 21 and the valve body mounting seat 4 is achieved by setting screws 5 in the threaded holes.

[0060] Furthermore, in this embodiment, the diameter of the damper plate 3 is equal to the outer diameter of the nozzle of the ejector tube 2. By setting the diameter of the damper plate 3 to be equal to the outer diameter of the nozzle of the ejector tube 2, heat radiation from the ejector tube 2 can be effectively blocked.

[0061] Of course, in other embodiments, the damper plate 3 can also be set to be larger than the outer diameter of the ejector tube 2 opening, which can also achieve the purpose of effectively blocking the heat radiation from the ejector tube 2.

[0062] In this embodiment, the end of the nozzle 1 facing the ejector tube 2 is in the same vertical plane as the opening of the ejector tube 2. The end of the nozzle 1 facing the ejector tube 2 is in the same vertical plane as the opening of the ejector tube 2; that is, the end of the nozzle 1 facing the ejector tube 2 is flush with the opening of the ejector tube 2, and the nozzle 1 does not extend into the ejector tube 2, thus avoiding the nozzle 1 being too far from the ejector tube 2 and reducing ejection performance.

[0063] Of course, in other embodiments, the nozzle 1 may be set to have a small distance between it and the opening of the ejector tube 2, as long as it is confirmed through actual conditions that the small distance will not reduce the ejection capacity of the burner 100.

[0064] This embodiment also provides a stove, which includes the burner 100 as described above. By setting the burner 100 as described above in the stove, the burner 100 has better ejection capability, reduces safety hazards, and provides a better user experience.

[0065] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A burner comprising a nozzle, a damper, and an ejector tube, characterized in that, The burner also includes a valve body mounting seat and a connecting part. The connecting part is disposed on the outer wall of the inlet of the ejector tube and extends in a direction relatively away from the ejector tube. The valve body mounting seat is disposed on the side surface of the nozzle and is detachably connected to the end of the connecting part relatively away from the ejector tube. The end of the nozzle facing the ejector tube is located outside the inlet of the ejector tube. The damper plate is connected to the nozzle or the valve body mounting base, and the distance between the damper plate and the inlet of the ejector tube is greater than 0.

2. The burner as claimed in claim 1, characterized in that, Beside the nozzle, the damper has a through hole penetrating its two opposing surfaces, the through hole extending in a direction not parallel to the axial direction of the nozzle.

3. The burner as described in claim 2, characterized in that, The number of through holes is multiple, and the multiple through holes are evenly distributed along the circumference of the nozzle.

4. The burner as described in claim 3, characterized in that, The centers of the through holes are all distributed on a circle with the intersection of the axis of the nozzle and the damper plate as the center, and the extension direction of each through hole is tangent to the circle.

5. The burner as claimed in claim 1, characterized in that, The damper can move along the axial direction of the nozzle to change the distance between the damper and the inlet of the ejector tube.

6. The burner as claimed in claim 1, characterized in that, The end of the nozzle facing the ejector tube is in the same vertical plane as the opening of the ejector tube.

7. The burner as claimed in claim 1, characterized in that, The valve body mounting base and the connecting part are detachably connected by screws; And / or, the damper plate is threadedly connected to the nozzle or the valve body mounting seat.

8. The burner as claimed in claim 1, characterized in that, The diameter of the damper plate is greater than or equal to the outer diameter of the ejector tube opening.

9. The burner as claimed in claim 8, characterized in that, The diameter of the damper plate is equal to the outer diameter of the ejector tube opening.

10. A stove, characterized in that, The stove includes a burner as described in any one of claims 1-9.

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