Nozzle holder assembly, nozzle ejection assembly and stove
By designing a nozzle seat assembly in the cooktop, and utilizing the mixing of gas, catalyst, and air, as well as the damper plate to optimize airflow, the problems of incomplete combustion and excessive smoke are solved, resulting in a more efficient combustion effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing stoves suffer from incomplete combustion, excessive combustion products, and high levels of smoke, which affect cooking results and pose potential hazards to the environment and human health.
Design a nozzle seat assembly including a seat body, a gas nozzle, a catalyst nozzle, and a damper plate. By setting gas passage, catalyst passage, and air passage respectively, gas, catalyst, and air are mixed. The catalyst promotes complete combustion of gas, and the airflow is optimized by the structural design of the damper plate to improve the mixing effect.
It improves combustion efficiency, reduces useless combustion products and flue gas, and achieves a more complete combustion effect.
Smart Images

Figure CN224150937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cooktops, and in particular to a nozzle seat assembly, a nozzle ejector assembly, and a cooktop. Background Technology
[0002] Traditionally, stoves suffer from defects such as incomplete combustion, excessive combustion products, and high levels of smoke. These defects not only affect cooking results but also pose potential hazards to the environment and human health. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of incomplete combustion, excessive combustion products and high flue gas content in existing stoves, and to provide a nozzle seat assembly, a nozzle ejector assembly and a stove.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution:
[0005] A nozzle seat assembly for injecting different gases into an ejector tube to mix the gases, the nozzle seat assembly comprising:
[0006] The seat body is provided with a gas combustion channel and a catalyst channel;
[0007] At least one gas nozzle connected to the gas passage, the gas nozzle being disposed on the end face of the seat body facing the ejector tube;
[0008] At least one catalyst nozzle connected to the catalyst channel, the catalyst nozzle being disposed on the end face of the seat body facing the ejector tube;
[0009] A damper plate is arranged around the outer circumference of the seat body, and the seat body divides the inner hole of the damper plate into several primary air channels.
[0010] In this design, the nozzle seat assembly, through the aforementioned configuration, concentrates and mixes the fuel gas, catalyst, and air through separate fuel gas and catalyst channels, improving the mixing effect and reducing unwanted combustion products and flue gas, thereby increasing combustion efficiency. Specifically, the addition of a catalyst promotes complete combustion of the fuel gas and reduces combustion products; the seat body divides the inner hole of the damper plate into several primary air channels, allowing air to mix with the fuel gas and catalyst from different locations, rather than through a single air channel, thus improving gas mixing; furthermore, the multiple primary air channels ensure sufficient air supply and complete combustion. Utilizing the gap between the inner wall of the damper plate and the seat body as a primary air channel results in a more compact structure.
[0011] Preferably, the nozzle seat assembly includes two gas nozzles and one catalyst nozzle, the two gas nozzles and the catalyst nozzle forming a triangular structure.
[0012] In this scheme, the above settings adjust the mixing ratio of fuel gas and catalyst, which is beneficial for complete combustion. The use of a triangular structure and the rational arrangement of two different types of nozzles ensures that the catalyst travels the same distance to both fuel gas nozzles, thus improving mixing efficiency.
[0013] Preferably, the two gas nozzles are connected to the same gas passage.
[0014] In this design, the two gas nozzles share the same gas passage, which helps to reduce the size of the seat body.
[0015] Preferably, the gas nozzle and / or the catalyst nozzle are detachably connected to the seat body.
[0016] In this solution, the gas nozzle and / or catalyst nozzle can be easily replaced through the above settings.
[0017] Preferably, the catalyst channel includes a catalyst inlet channel and a catalyst nozzle channel that are interconnected, and the catalyst inlet channel and the catalyst nozzle channel are arranged perpendicularly to each other.
[0018] In this design, the catalyst channel adopts the above-mentioned two-section vertical arrangement instead of the catalyst inlet channel and the catalyst nozzle channel being arranged in a straight line. This is beneficial to reduce the length of the seat body and to reasonably arrange the catalyst inlet and the gas inlet in different directions.
[0019] Preferably, the damper plate has several transition protrusions on its surface facing the ejector tube, and the damper plate is configured to move along the axial direction of the seat body to approach or move away from the ejector tube.
[0020] In this scheme, the above settings adjust the airflow between the damper and the ejector when the damper plate is near or far from the ejector tube, and the airflow is promoted and the gas mixing effect is improved through several transition protrusions.
[0021] Preferably, the thickness of each of the transition protrusions gradually increases or decreases circumferentially.
[0022] In this design, each transition protrusion adopts the aforementioned gradient thickness design, which is beneficial for promoting uniform airflow and mixing effect.
[0023] Preferably, the damper plate is threadedly connected to the outer surface of the seat body.
[0024] In this design, the damper plate and the outer surface of the base body are connected by threads, allowing the damper plate to rotate around the base body and the distance between the damper plate and the ejector tube to be adjusted, thereby regulating the airflow into the ejector tube.
[0025] A nozzle ejector assembly includes a nozzle seat assembly as described above and an ejector tube spaced apart from the end face of the seat body.
[0026] In this solution, the nozzle ejector assembly mixes the fuel gas, catalyst, and air and ejects them into the ejector tube through the aforementioned nozzle seat assembly, thereby improving the mixing effect, reducing useless combustion products and flue gas, and thus improving combustion efficiency.
[0027] A cooktop comprising a nozzle ejector assembly as described above.
[0028] In this design, the stove mixes and injects the gas, catalyst, and air into the injection tube through the aforementioned nozzle ejector assembly, which improves the mixing effect, reduces useless combustion products and flue gas, and thus improves combustion efficiency.
[0029] The positive and progressive effects of this utility model are as follows: the nozzle seat assembly, the nozzle ejector assembly, and the stove mix the gas, catalyst, and air and eject them into the ejector tube, thereby improving the mixing effect, reducing useless combustion products and flue gas, and thus improving combustion efficiency. Attached Figure Description
[0030] Figure 1 This is a three-dimensional structural schematic diagram of the nozzle seat assembly of Embodiment 1 of this utility model.
[0031] Figure 2 This is a front view of the nozzle seat assembly of Embodiment 1 of this utility model.
[0032] Figure 3 for Figure 2 A sectional view along AA.
[0033] Figure 4 for Figure 2 A cross-sectional view along BB.
[0034] Figure 5 This is a schematic diagram of the nozzle ejector assembly of Embodiment 1 of this utility model.
[0035] Explanation of reference numerals in the attached figures:
[0036] Nozzle seat assembly 100
[0037] Seat body 1
[0038] Gas passage 11
[0039] Gas inlet channel 111
[0040] Gas nozzle channel 112
[0041] Catalyst channel 12
[0042] Catalyst inlet channel 121
[0043] Catalyst nozzle channel 122
[0044] Primary air passage 13
[0045] Gas nozzle 2
[0046] Catalyst Nozzle 3
[0047] Air damper plate 4
[0048] Transition protrusion 41
[0049] Fixed bracket 5
[0050] ejector tube 200 Detailed Implementation
[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0052] Example 1
[0053] This embodiment provides a nozzle seat assembly 100 for injecting different gases into an injector tube 200 to mix the gases. After assembly, the nozzle seat assembly 100 and the injector tube 200 are used in a stove, and the mixed gas serves as the combustion gas required for the stove.
[0054] like Figures 1-5As shown, the nozzle seat assembly 100 includes a seat body 1, at least one gas nozzle 2 communicating with the gas passage 11, and a damper 4. The seat body 1 is an approximately cylindrical structure with a gourd-shaped cross-section. The seat body 1 contains the gas passage 11 and a catalyst passage 12. The gas nozzle 2 is located on the end face of the seat body 1 facing the ejector tube 200, and the catalyst nozzle 3 is located on the end face of the seat body 1 facing the ejector tube 200. Gas enters from the gas passage 11, is injected through the gas nozzle 2, and then ejected into the ejector tube 200. Similarly, the catalyst enters from the catalyst passage 12, is injected through the catalyst nozzle 3, and then also ejected into the ejector tube 200. The damper plate 4 is an annular plate structure that is arranged around the outer circumference of the seat body 1. The seat body 1 divides the inner hole of the damper plate 4 into several primary air channels 13. Specifically, in this embodiment, the seat body 1 divides the inner hole of the damper plate 4 into two primary air channels 13. Air enters the injector tube 200 from the two primary air channels 13 and the gap between the damper plate 4 and the injector tube 200, thereby mixing with the fuel gas and catalyst.
[0055] The nozzle seat assembly 100, through the aforementioned configuration, concentrates and mixes the fuel gas, catalyst, and air through the fuel gas channel 11, catalyst channel 12, and air respectively, improving the mixing effect, reducing useless combustion products and flue gas, and thus improving combustion efficiency. Specifically, the addition of a catalyst promotes complete combustion of the fuel gas and reduces combustion products; the seat body 1 divides the inner hole of the damper plate 4 into several primary air channels 13, allowing air to mix with the fuel gas and catalyst from different locations, rather than through a single air channel, thereby improving gas mixing; furthermore, the multiple primary air channels 13 help ensure sufficient air and complete combustion. Utilizing the gap between the inner wall of the damper plate 4 and the seat body 1 as the primary air channels 13 results in a more compact structure.
[0056] Among them, such as Figure 2 As shown, in this embodiment, the nozzle seat assembly 100 includes two gas nozzles 2 and one catalyst nozzle 3, forming a triangular structure. This arrangement allows for a higher proportion of gas to be injected, while the catalyst, acting as a catalytic regulator, is injected in a smaller proportion, thus regulating the mixing ratio of gas and catalyst and promoting complete combustion. The triangular structure, with its rational arrangement of two different types of nozzles, ensures that the catalyst travels the same distance to the two gas nozzles 2, further improving mixing efficiency.
[0057] In other embodiments, the number of gas nozzles 2 and catalyst nozzles 3, as well as the corresponding number of gas channels 11 and catalyst channels 12, can be adjusted according to the required mixing effect.
[0058] Among them, such as Figure 4 As shown, the two gas nozzles 2 are connected to the same gas passage 11. In this way, the gas nozzles 2 share the same gas passage 11, which helps to reduce the size of the seat body 1.
[0059] The gas nozzle 2 and / or catalyst nozzle 3 are detachably connected to the seat body 1. Specifically, each gas nozzle 2 and catalyst nozzle 3 is connected to the seat body 1 by a threaded connection, so that when the nozzle is blocked or there are other problems, the gas nozzle 2 and / or catalyst nozzle 3 can be easily replaced.
[0060] Among them, such as Figure 3 As shown, the catalyst channel 12 includes a catalyst inlet channel 121 and a catalyst nozzle channel 122 that are interconnected, with the catalyst inlet channel 121 and catalyst nozzle channel 122 arranged perpendicularly. In contrast, the gas inlet channel 11 and gas nozzle channel 112 of the gas passage 11 are arranged in a straight line. The catalyst channel 12 adopts this two-section vertical arrangement, instead of the catalyst inlet channel 121 and catalyst nozzle channel 122 being arranged in a straight line, which helps to reduce the length of the seat body 1 and allows for a more reasonable arrangement of the catalyst inlet and gas inlet in different directions.
[0061] like Figure 1 As shown, the surface of the damper plate 4 facing the ejector tube 200 is provided with several transition protrusions 41. The damper plate 4 is configured to move along the axial direction of the base body 1 to approach or move away from the ejector tube 200. When the damper plate 4 approaches or moves away from the ejector tube 200, the airflow between the damper plate 4 and the ejector tube 200 is adjusted, and the several transition protrusions 41 can promote airflow and improve the gas mixing effect.
[0062] The thickness of each transition protrusion 41 gradually increases or decreases along the circumference. This gradual thickness design of each transition protrusion 41 promotes uniform airflow and mixing.
[0063] Among them, such as Figure 1 , Figure 3 and Figure 4 As shown, the inner ring surface of the damper plate 4 is provided with internal threads, and the upper and lower surfaces of the base body 1 are provided with external threads. The damper plate 4 is threadedly connected to the outer surface of the base body 1. In this way, the damper plate 4 can rotate around the base body 1, and the distance between the damper plate 4 and the ejector tube 200 can also be adjusted, thereby adjusting the airflow entering the ejector tube 200.
[0064] like Figure 5As shown, this embodiment also provides a nozzle ejector assembly, which includes a nozzle seat assembly 100 as described above and an ejector tube 200 spaced apart from the end face of the seat body 1. A fixing bracket 5 is installed at the gas inlet of the seat body 1. Two mounting ears are provided on both sides of the fixing bracket 5, and two mounting ears are also installed at corresponding positions on the ejector tube 200. The nozzle seat assembly 100 and the ejector tube 200 are connected and fixed by bolts passing through the two mounting ears. This nozzle ejector assembly, through the nozzle seat assembly 100, mixes and ejects the gas, catalyst, and air into the ejector tube 200, improving the mixing effect, reducing useless combustion products and flue gas, and thus improving combustion efficiency.
[0065] Example 2
[0066] This embodiment provides a cooktop that includes a nozzle ejector assembly as described in Embodiment 1. The cooktop, through the nozzle ejector assembly as described in Embodiment 1, mixes and ejects fuel gas, catalyst, and air into the ejector tube 200, improving the mixing effect, reducing useless combustion products and flue gas, thereby improving combustion efficiency.
[0067] 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 nozzle seat assembly for injecting different gases into an injection tube for mixing the gases, characterized by, The nozzle seat assembly includes: The seat body is provided with a gas combustion channel and a catalyst channel; At least one gas nozzle connected to the gas passage, the gas nozzle being disposed on the end face of the seat body facing the ejector tube; At least one catalyst nozzle connected to the catalyst channel, the catalyst nozzle being disposed on the end face of the seat body facing the ejector tube; A damper plate is arranged around the outer circumference of the seat body, and the seat body divides the inner hole of the damper plate into several primary air channels.
2. The nozzle seat assembly of claim 1, wherein, The nozzle seat assembly includes two gas nozzles and one catalyst nozzle, which together form a triangular structure.
3. The nozzle seat assembly of claim 2, wherein, The two gas nozzles are connected to the same gas passage.
4. The nozzle seat assembly of claim 1 wherein, The gas nozzle and / or the catalyst nozzle are detachably connected to the seat body.
5. The nozzle seat assembly of claim 1 wherein, The catalyst channel includes a catalyst inlet channel and a catalyst nozzle channel that are interconnected, and the catalyst inlet channel and the catalyst nozzle channel are arranged perpendicularly.
6. The nozzle seat assembly of claim 1, wherein The damper plate has several transition protrusions on its surface facing the ejector tube, and the damper plate is configured to move along the axial direction of the seat body to move closer to or further away from the ejector tube.
7. The nozzle seat assembly of claim 6, wherein The thickness of each of the transition protrusions gradually increases or decreases circumferentially.
8. The nozzle seat assembly of claim 6, wherein, The damper plate is threadedly connected to the outer surface of the seat body.
9. A nozzle-ejector assembly characterized by, The nozzle ejector assembly includes a nozzle seat assembly as described in any one of claims 1-8 and an ejector tube spaced apart from the end face of the seat body.
10. A stove, characterized in that, The cooktop includes the nozzle ejector assembly as described in claim 9.