Low-noise gas appliance furnace end
By setting alternately distributed semicircular ventilation holes and mixing pipes on the side wall of the inner shell of the furnace for gas premix, the problems of high noise and high production difficulty are solved, and the combustion effect of low noise, air saving and environmental protection is achieved.
Patent Information
- Application Number
- CN202420734243.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing furnace heads are noisy during combustion, especially when multiple gas stoves are used at the same time, which leads to excessive noise in the kitchen environment, increasing the difficulty and cost of production.
Design a low-noise burner furnace head, including an outer shell and an inner shell, with alternating semicircular ventilation holes on the side walls of the inner shell, and the mixing tube extends from the outer shell to the inner shell, and pre-gas and air through the fan air inlet device Mix, optimize the combustion process.
Effectively reduce noise, simplify the production process, reduce production costs, and at the same time improve combustion efficiency, save 20% of gas, reduce polluted gas emissions, and achieve a more environmentally friendly combustion effect.
Smart Images
Figure CN222210308U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuel appliances, in particular to a low-noise fuel appliance burner. Background Art
[0002] Known gas appliances are the most common combustion appliances at present. Various pots can be placed on the gas appliances for cooking. The gas appliances include a stove, a burner and an ignition device. The gas can be coal gas, natural gas or oil gas, etc. The current burner structure is basically composed of a round head and a gas pipe. The gas can be discharged through the gas pipe and ignited on the round head. However, the current burner generally has a problem that the combustion process is very noisy due to the difference in exhaust structure after ignition and combustion. This is especially true in the back kitchens of some restaurants where multiple gas stoves are used at the same time. The back kitchen is generally well sealed, and the sound of the burner burning is easily reflected, causing the back kitchen to be too loud. The waiters or the side dish staff cannot communicate normally with the chef. Therefore, the burner products on the market need to reduce the noise. A Chinese utility model patent with the authorization announcement number CN214581059U discloses a new type of low-noise burner for gas appliances, including a burner outer shell, a burner inner shell, a burner chassis and a gas connecting pipe. The gas connecting pipe is welded to the bottom of the burner outer shell. The top of the burner inner shell is welded and fixed to the burner outer shell, and the burner chassis is welded and fixed to the bottom end side of the burner inner shell. A gas ventilation group is provided on the burner inner shell, and four rows of gas ventilation groups are arranged in parallel up and down, and each gas ventilation group consists of two rows of semicircular air holes evenly distributed on the burner inner shell and arranged opposite to each other up and down. The radius R of the semicircular air holes is 1.1 mm, and the upper and lower distance H between the upper and lower rows of semicircular air holes of each gas ventilation group is 4.2 mm. The diameter of the burner chassis is larger than the bottom diameter of the burner inner shell, wherein each gas ventilation group consists of two rows of semicircular air holes evenly distributed on the burner inner shell and arranged opposite to each other up and down. This kind of gas ventilation group consisting of two rows of semicircular air holes will increase the difficulty of production and manufacturing, and greatly increase the production and manufacturing cost. Therefore, it is necessary to improve the existing technology. Utility Model Content
[0003] 1. Technical issues that need to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a low-noise burner head for a gas appliance, which helps to reduce the difficulty of production and manufacturing, reduces the investment in production costs, and is more conducive to meeting requirements while maintaining a simple structure and effectively reducing noise.
[0005] (II) Technical solutions that need to be adopted
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A low-noise burner stove, comprising a stove and a mixing tube arranged at the lower part of the stove, the stove comprising an outer shell and an inner shell arranged inside the outer shell, an upper chassis is arranged at the bottom end of the inner shell, a gap is formed between the upper chassis and the outer shell, a lower chassis is arranged at the bottom end of the outer shell, the lower chassis is sealed and connected to the outer shell, a plurality of rows of semicircular air vents are arranged in parallel on the side wall of the inner shell, the semicircular air vents in each upper and lower row are alternately distributed, and the upper part of the mixing tube extends from the outer shell into the inner shell.
[0008] Preferably, six rows of semicircular vents are used, the diameter of the semicircular vents in the upper four rows is 2.3 cm, the diameter of the semicircular vents in the lower two rows is 2.8 cm, and the staggered distribution angle of the semicircular vents in each row is 3°.
[0009] Preferably, the mixing tube includes an inner tube body and an outer tube body arranged on the lower chassis, an ignition needle and a spark tube are installed in the inner tube body, the ignition needle and the spark tube both pass through the outer tube body, a spark combustion chamber is arranged on the upper end face of the ignition needle, and the upper end of the spark tube extends into the spark combustion chamber, an air inlet is arranged on the inner tube body, a main gas inlet pipe is arranged on the outer tube body, a main gas outlet guide hole is arranged on the main gas inlet pipe, the air inlet is located above the main gas outlet guide hole, an ignition air inlet pipe and a spark inlet pipe are correspondingly arranged on the ignition needle and the spark tube, the ignition air inlet pipe and the spark inlet pipe extend out of the outer tube body respectively, and a fan air inlet device is arranged on the outer tube body, and the fan air inlet device just corresponds to the ignition air inlet pipe and the spark inlet pipe.
[0010] Preferably, a fire starter air inlet joint is provided on the fire starter tube at the lower end surface of the outer tube body.
[0011] Preferably, the upper end surface of the spark combustion chamber is higher than the upper end surface of the upper chassis, and a guide water inlet is provided on the spark combustion chamber.
[0012] Preferably, the fan air inlet device comprises a fan air inlet pipe arranged on the side end surface of the outer tube body, and a fan may be installed in the fan air inlet pipe or the fan air inlet pipe is connected to a fan.
[0013] Preferably, a water overflow hole is provided on the lower end surface of the fan air inlet pipe.
[0014] (III) Technical effects to be achieved
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] Firstly, the burner head of the utility model comprises an outer shell and an inner shell arranged inside the outer shell, and a plurality of rows of semicircular air vents are arranged in parallel on the side wall of the inner shell, and the semicircular air vents in each upper and lower row are distributed alternately, which is conducive to reducing the difficulty of production and manufacturing and reducing the investment of production cost while maintaining a simple structure and effectively reducing noise, and is more conducive to meeting requirements.
[0017] Secondly, an upper chassis is provided at the bottom end of the inner shell of the utility model, a gap is formed between the upper chassis and the outer shell, a lower chassis is provided at the bottom end of the outer shell, the lower chassis and the outer shell are sealed, and the upper part of the mixing tube extends from the outer shell to the inner shell. This arrangement is not only simple in structure and easy to produce, but also can make the combustion flame bluer and have a higher calorific value. The combustion temperature is as high as 1200 degrees, which can save up to 20% of fuel gas, save gas and time, make the combustion more complete, reduce the emission of pollutants in the flue gas, and be more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the main viewing direction of the utility model.
[0019] Figure 2 It is a three-dimensional schematic diagram of the utility model.
[0020] Figure 3 It is an overall schematic diagram of the utility model.
[0021] Figure 4 It is a schematic diagram of the decomposition of the utility model.
[0022] Figure 5 This is a schematic diagram of the main viewing direction of the inner shell of the utility model.
[0023] Figure 6 It is a three-dimensional schematic diagram of the inner shell of the utility model.
[0024] Figure 7 It is a schematic diagram of the utility model when viewed from above.
[0025] Figure 8 for Figure 7 Section view along AA direction.
[0026] Fig. 9 for Figure 7 Cross-sectional view along BB direction.
[0027] In the figure: 1, burner head; 2, mixing tube; 11, outer shell; 12, inner shell; 13, upper chassis; 14, lower chassis; 15, semicircular air vent; 21, inner tube body; 22, outer tube body; 23, ignition needle; 24, spark tube; 25, spark combustion chamber; 26, main gas inlet pipe; 27, fan air inlet device; 28, spark inlet joint; 211, air inlet; 231, ignition air inlet pipe; 241, spark inlet pipe; 251, guide water inlet; 261, main gas outlet guide hole; 271, fan air inlet pipe; 272, overflow outlet. DETAILED DESCRIPTION
[0028] In the description of the present utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0029] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.
[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.
[0032] Example 1: See Figures 1 to 9 A low-noise burner comprises a burner 1 and a mixing tube 2 arranged at the lower part of the burner 1. The burner 1 comprises an outer shell 11 and an inner shell 12 arranged inside the outer shell 11. An upper chassis 13 is arranged at the bottom of the inner shell 12. A gap is formed between the upper chassis 13 and the outer shell 11. A lower chassis 14 is arranged at the bottom of the outer shell 11. The lower chassis 14 is sealed and connected to the outer shell 11. Several rows of semicircular vents 15 are arranged in parallel on the side wall of the inner shell 12. On the basis of keeping the structure simple and effectively reducing the noise, it avoids the problem of pairs of vents in each row. The exhaust holes are arranged to reduce the difficulty of production and manufacturing, reduce the investment of production costs, and are more conducive to meeting the requirements. The semicircular vent holes 15 in each row above and below are alternately distributed. Through the accurate calculation of the fire area and the orderly staggered arrangement of the semicircular vent holes 15, the burning fire can achieve stable fire, sufficient combustion to prevent whistling, energy saving and noise reduction, and the energy saving rate reaches 20%. After testing, the noise is reduced from the original 83 decibels to below 68 decibels. The upper part of the mixing tube 2 extends from the outer shell 11 to the inner shell 12, and secondly, it is also conducive to better exhaust. The burner head 1 and the mixing tube 2 of the utility model are reasonably designed, and the burner head 1 will not have an excessively large fire area to increase gas consumption, thereby wasting gas sources, incomplete combustion, and increased carbon monoxide emissions, achieving the effect of energy saving, and will not have a problem of too much pressure inside the burner head 1 and whistling due to the small fire area of the burner head 1.
[0033] In the utility model, several rows of semicircular vents 15 are arranged in parallel on the side wall of the inner shell 12, which is conducive to a more stable outlet and uniform gas outlet, thereby achieving energy-saving effects. Secondly, since several rows of semicircular vents 15 are arranged in parallel on the side wall of the inner shell 12, this is conducive to the realization of rotating fire outlet, which is more conducive to meeting the use requirements. Finally, after the gas passes through, the noise generated by the gas flow is reduced, and the noise generated during combustion can be effectively reduced. Several rows of semicircular vents 15 are arranged in parallel on the side wall of the shell 12 of the utility model, which solves the problem of unstable flame output and occasional flame jumps in the combustion of the prior art, and then a harsh whine (whistle) is generated at a certain point when adjusting the gas flow rate (large and small fire) or at a certain point when adjusting the air volume of the fan.
[0034] Embodiment 2: It can be explained on the basis of embodiment 1, such as Figure 2 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the semicircular air holes 15 are arranged in six rows, the diameter of the semicircular air holes 15 in the upper four rows is 2.3 cm, the diameter of the semicircular air holes 15 in the lower two rows is 2.8 cm, and the staggered distribution angle of each row of semicircular air holes 15 is 3°. Since they are semicircular air holes 15, the noise generated by the gas flow is reduced after the gas passes through, and the noise generated during combustion can be effectively reduced. After testing, the noise is reduced from the original 83 decibels to below 68 decibels, which is more conducive to meeting the use requirements of reducing noise.
[0035] Embodiment 3: It can be described on the basis of Embodiment 1 or Embodiment 2, such as Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9As shown, the mixing tube 2 includes an inner tube body 21 and an outer tube body 22 arranged on the lower chassis 14, an ignition needle 23 and a fire tube 24 are installed in the inner tube body 21, the ignition needle 23 and the fire tube 24 both penetrate the outer tube body 22, the upper end surface of the ignition needle 23 is provided with a fire combustion chamber 25, and the upper end of the fire tube 24 extends into the fire combustion chamber 25, the inner tube body 21 is provided with an air inlet 211, the outer tube body 22 is provided with a main gas inlet pipe 26, the main gas inlet pipe 26 is provided with a main gas outlet guide hole 261, and the air inlet port 211 is provided on the inner tube body 21, and the main gas inlet pipe 26 is provided with a main gas outlet guide hole 261. The inlet 211 is located above the main gas outlet guide hole 261. A main gas joint is installed on the main gas inlet pipe 26 on the outer end surface of the outer tube body 22. The main gas joint is connected to the external gas, which is conducive to the supply of gas. The ignition needle 23 and the fire tube 24 are correspondingly provided with an ignition air inlet pipe 231 and a fire inlet pipe 241. The ignition air inlet pipe 231 and the fire inlet pipe 241 extend out of the outer tube body 22 respectively, and the outer tube body 22 is provided with a fan air inlet device 27, which corresponds to the ignition needle 23 and the fire tube 24. The fire air inlet pipe 231 and the fire inlet pipe 241 are connected to the main gas inlet pipe 26. When the gas is connected to the main gas inlet pipe 26, the fan air inlet device 27 is turned on, and the gas enters the outer tube body 22. At the same time, the fan air inlet device 27 is also turned on to make the gas entering the outer tube body 22 and the oxygen molecules in the air premixed. Since the outer tube body 22 and the fan air inlet device 27 are in opposite directions, the gas and the oxygen in the air are premixed in the outer tube body 22, and then enter the inner tube body 21 through the air inlet port 211, which can not only The mixed gas will be mixed again in the inner tube body 21, and the mixed gas will not be biased (avoiding the bias of the fixed fire type). Then it enters the outer shell 11 through the opening at the upper end of the inner tube body 21 for mixing again, and finally enters the fire combustion chamber 25 of the inner shell 12. This method can be more fully mixed, the combustion flame is bluer, the calorific value is higher, the combustion temperature is as high as 1200 degrees, and up to 20% of gas can be saved, which saves gas and time, makes the combustion more complete, reduces the emission of pollutants in the flue gas, and is more environmentally friendly.
[0036] I want to explain that if Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown, a fire starter air inlet connector 28 is provided on the fire starter tube 24 at the lower end face of the outer tube body 22, and the fire starter air inlet connector 28 is conducive to connection with external gas, so as to realize the entry of gas. When the fire starter (long-burning) tube 24 needs to enter gas, the gas enters through the fire starter air inlet connector 28.
[0037] Among them, Figure 2 , Figure 4 , Figure 7 , Figure 8 and Fig. 9As shown, the upper end surface of the fire starter combustion chamber 25 is higher than the upper end surface of the upper chassis 13, and a guide water inlet 251 is provided on the fire starter combustion chamber 25. This arrangement is more conducive to the entry of water into the fire starter combustion chamber 25 for easy discharge. In this embodiment, there are two guide water inlets 251, which is more conducive to the introduction of water.
[0038] Among them, Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the fan air inlet device 27 includes a fan air inlet pipe 271 arranged on the side end surface of the outer tube body 22. A fan can be installed in the fan air inlet pipe 271 or the fan air inlet pipe is connected to a fan, and the form is diverse, and there is a large room for selection. It is to be noted that the lower end surface of the fan air inlet pipe 271 is provided with an overflow outlet hole 272, which is conducive to drainage through the fan air inlet pipe.
[0039] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part adopt conventional means such as mature bolts and rivets in the existing technology. The fan components all adopt conventional models in the existing technology, and their internal structures belong to the existing technology structure. Workers can complete normal operation according to the existing technology manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no specific description is given here.
[0040] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.
Claims
1. A low-noise burner head for a gas appliance, comprising a burner head (1) and a mixing tube (2) arranged at the lower part of the burner head (1), characterized in that: The furnace head (1) comprises an outer shell (11) and an inner shell (12) arranged inside the outer shell (11); an upper chassis (13) is arranged at the bottom end of the inner shell (12); a gap is formed between the upper chassis (13) and the outer shell (11); a lower chassis (14) is arranged at the bottom end of the outer shell (11); the lower chassis (14) is sealedly connected to the outer shell (11); a plurality of rows of semicircular air vents (15) are arranged in parallel on the side wall of the inner shell (12); the semicircular air vents (15) in each upper and lower rows are alternately distributed; and the upper portion of the mixing pipe (2) extends from the outer shell (11) into the inner shell (12).
2. The low noise burner head of the gas burner as claimed in claim 1, characterized in that: The semicircular vent holes (15) are arranged in six rows, the diameter of the semicircular vent holes (15) in the upper four rows is 2.3 cm, the diameter of the semicircular vent holes (15) in the lower two rows is 2.8 cm, and the staggered distribution angle of the semicircular vent holes (15) in each row is 3°.
3. The low noise burner head of the gas burner as claimed in claim 1 or 2, characterized in that: The mixing tube (2) comprises an inner tube body (21) and an outer tube body (22) arranged on the lower chassis (14); an ignition needle (23) and a fire starter tube (24) are installed in the inner tube body (21); the ignition needle (23) and the fire starter tube (24) both penetrate the outer tube body (22); a fire starter combustion chamber (25) is arranged on the upper end surface of the ignition needle (23); and the upper end of the fire starter tube (24) extends into the fire starter combustion chamber (25); an air inlet (211) is arranged on the inner tube body (21); and a main gas inlet pipe (26) is arranged on the outer tube body (22); The gas pipe (26) is provided with a main gas outlet guide hole (261), the air inlet (211) is located above the main gas outlet guide hole (261), the ignition needle (23) and the fire starter tube (24) are provided with an ignition air inlet pipe (231) and a fire starter air inlet pipe (241) respectively, the ignition air inlet pipe (231) and the fire starter air inlet pipe (241) respectively extend out of the outer tube body (22), and the outer tube body (22) is provided with a fan air inlet device (27), and the fan air inlet device (27) just corresponds to the ignition air inlet pipe (231) and the fire starter air inlet pipe (241).
4. The low noise burner head of the gas burner as claimed in claim 3, characterized in that: A fire starter air inlet joint (28) is provided on the fire starter tube (24) at the lower end surface of the outer tube body (22).
5. The low noise burner head of the gas burner as claimed in claim 3, characterized in that: The upper end surface of the spark combustion chamber (25) is higher than the upper end surface of the upper chassis (13), and a guide water inlet (251) is provided on the spark combustion chamber (25).
6. The low noise burner head of the gas burner as claimed in claim 3, characterized in that: The fan air inlet device (27) comprises a fan air inlet pipe (271) arranged on the side end surface of the outer tube body (22), and a fan can be installed in the fan air inlet pipe (271) or the fan air inlet pipe is connected to a fan.
7. The low noise burner head of the gas burner as claimed in claim 6, characterized in that: The lower end surface of the fan air inlet pipe (271) is provided with an overflow outlet hole (272).