Silencing structure for fire outlet of stove

Abstract

The utility model discloses a kitchen range fire outlet noise reduction structure which comprises a noise reduction outer pipe and a ceramic noise reduction pipe, a main body of the ceramic noise reduction pipe is made of porous ceramics, a plurality of noise reduction teeth are arranged on the inner wall of a pipe hole of the ceramic noise reduction pipe, the noise reduction teeth are all arranged in the length direction of the ceramic noise reduction pipe, and the noise reduction outer pipe is arranged in the ceramic noise reduction pipe. Compared with the prior art, a silencing structure is designed on a fire outlet of an existing stove, flame gas at the outlet is subjected to silencing and noise reduction through holes and a silencing tooth structure on the ceramic silencing pipe, and the ceramic silencing pipe is arranged in the ceramic silencing pipe and is evenly distributed in the circumferential direction of the pipe hole at intervals, and the silencing outer pipe is arranged outside the ceramic silencing pipe in a sleeving mode. The problem that an existing liquid fuel stove is high in noise is thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the field of liquid fuel stoves, in particular to a stove fire outlet silencing structure. Background Art

[0002] In the vast commercial stove market, most of them use liquefied gas fuel, such as gas cylinders, which are widely used in schools, troops, restaurants, hotels and other multi-person stove occasions. This traditional liquefied gas has problems such as low calorific value, high cost, low flash point, flammability and explosion, and great safety risks. Due to the great safety risks of liquefied gas fuel, the state's supervision is becoming more and more strict, and non-residential users are prohibited from using liquefied petroleum gas. As a result, commercial stove fuels have begun to turn to safe fuels with relatively high flash points-liquid fuels. Among them, civilian clean liquid fuel is a non-toxic and harmless high-flash point liquid alkane clean fuel for kitchen stoves made of synthetic hydrocarbons, high-flash point hydrocarbon compounds and other straight-chain alkanes and branched alkanes as raw materials and composite additives. The main advantages of this fuel oil are wide application, low price, high calorific value, good safety and clean and environmentally friendly.

[0003] In the stove, when the fuel is sprayed out from the air outlet, noise will be generated, especially for liquid fuel stoves. Liquid fuel stoves are mainly electronic fuel stoves in terms of fuel supply. They are mainly used in commercial fierce fire stoves, a series of Chinese food frying stoves, large pot stoves, and other kitchen stoves such as steamers, stew barrels, cooking stoves, and clay pot stoves. The combustion method of electronic fuel stoves must first pressurize the liquid fuel to 12 kg pressure, because pressurization can ensure that the liquid fuel sprayed from the atomizing nozzle is in a mist state. The air is injected into the air cavity of the stove through the fan. After the air is mixed with the atomized liquid fuel, it can be burned to achieve heating of the pot. Due to the need for pressure atomization and the need for fan blowing, the wind pressure at the stove outlet is very high, which will generate a lot of noise. In some places where liquid fuel stoves are used for closed combustion, such as steam generators, steamers, etc., the liquid fuel heats the water pipe in a closed chamber. It is only necessary to install a commercially available silencer at the air outlet of the cavity to achieve the silencing and noise reduction of the exhaust gas. However, some open stoves such as frying stoves, hot pot stoves, and clay pot stoves, which require flames to directly heat the pots, cannot be silenced or noise reduced.

[0004] If the noise problem can be solved, it will greatly promote the application and promotion of liquid fuel stoves, especially in places such as household stoves that require a quiet working environment.

[0005] Our company has developed the first generation of liquid fuel stoves, see CN202410224133.0, a multi-stage split energy-saving combustion device for liquid fuel. This product has essentially changed the atomization combustion method of the original electric fuel injection stove through the structural design of the ion combustion body. The liquid fuel does not need to be atomized by high pressure. The temperature generated by the primary combustion in the first-level combustion chamber in the ion combustion body is used to disperse the liquid fuel in cooperation with the cyclone air intake of the cyclone air intake cylinder, thereby achieving true high-temperature vaporization of the liquid fuel, and stably burning and fully vaporizing in the second-level combustion chamber between the ion combustion body, the lower ring of the combustion tube and the ion fire dividing teeth, and fully burning and generating heat in the third-level combustion chamber in the combustion tube, so that the liquid fuel is fully burned. The combustion device is no longer directly heated by flame, but the fuel is heated by thermal radiation after full combustion. Compared with direct flame heating, the heating effect is better, the heat utilization rate is greatly improved, and the heat energy loss is greatly reduced. Compared with the electric fuel injection stove, the heat utilization rate is nearly doubled, and the energy consumption such as oil and electricity is only half of the original, and it is safer, more independent, and has a wide range of applications. In addition, when the low-fire mode is used for slow combustion, the liquid fuel can stably fission and burn on the ion fire-dividing teeth of the secondary combustion chamber, and continuously generate stable heat. Compared with the existing electric spray cookers, although the wind pressure and the injection oil pressurization amount have been greatly reduced, the noise has been greatly reduced, but the noise problem still exists. Due to the large amount of fuel gas or steam, even if the stove basin and stove are designed to be silenced, the effect is not ideal, so it is urgent to design a silencer that can be used in open stoves. Utility Model Content

[0006] The purpose of the utility model is to provide a stove fire outlet silencer structure which solves the noise problem of existing liquid fuel stoves and achieves noise reduction.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a stove fire outlet silencer structure, including a silencer outer tube and a ceramic silencer tube, the main body of the ceramic silencer tube is made of porous ceramic, and a plurality of silencer teeth are opened on the inner wall of the tube hole of the ceramic silencer tube, and the silencer teeth are arranged along the length direction of the ceramic silencer tube and are evenly spaced along the circumferential direction of the tube hole, and the silencer outer tube is sleeved on the outside of the ceramic silencer tube.

[0008] Preferably, the ceramic silencer tube is a two-section structure, consisting of an upper silencer tube and a lower silencer tube. The tube hole of the upper silencer tube is narrow at the bottom and wide at the top, and the tube hole diameter of the lower silencer tube is the same as the lower end hole diameter of the upper silencer tube.

[0009] Preferably, the upper silencer and the lower silencer are integrally formed.

[0010] Preferably, the upper silencer tube and the lower silencer tube of the ceramic silencer tube are split structures, and the silencer teeth in the upper silencer tube are aligned with the silencer teeth in the lower silencer tube.

[0011] Preferably, the silencer outer tube is composed of an upper furnace ring and a lower straight tube, the furnace ring is disc-shaped and the straight tube is tubular, the diameter of the furnace ring is larger than the diameter of the straight tube, the outer wall shape of the ceramic silencer tube matches the inner diameter shape of the silencer outer tube, and is placed in the silencer outer tube.

[0012] Preferably, the outer silencer tube is fixed on the fire outlet of the stove.

[0013] Preferably, the lower end of the silencer outer tube is mounted on the vaporization combustion tube of the ion combustion body.

[0014] Compared with the prior art, the utility model has the following advantages: the utility model designs a silencer structure at the fire outlet of the existing stove, and silences and reduces the noise of the outlet flame gas through the pores and silencer tooth structure on the ceramic silencer tube, which completely solves the problem of high noise in the existing liquid fuel stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 and Figure 4 This is a schematic diagram of the designed ceramic silencer structure;

[0018] Figure 5 This is a schematic diagram of the assembly of the utility model on the ion combustion body developed by our company.

[0019] In the figure: 1. silencer outer tube; 11. furnace ring; 12. straight tube; 2. ceramic silencer tube; 21. upper silencer tube; 22. lower silencer tube; 23. silencer teeth; 3. ion combustion body. DETAILED DESCRIPTION

[0020] The utility model will be further described below, specifically as follows: a stove fire outlet silencer structure, see Figure 1 and Figure 2, including a silencer outer tube 1 and a ceramic silencer tube 2. The main body of the ceramic silencer tube 2 is made of porous mullite ceramics. The porous mullite ceramics have the characteristics of high porosity, low density, high temperature resistance and high mechanical strength. Its porous air-permeable structure has a good sound-absorbing and noise-reducing effect. A plurality of silencer teeth 23 are provided on the inner wall of the tube hole of the ceramic silencer tube 2, and are evenly spaced along the circumferential direction of the tube hole. The design of the silencer teeth 23 can play a role in guiding wind in the vertical direction.

[0021] The ceramic silencer 2 is a two-stage structure, which is composed of an upper silencer 21 and a lower silencer 22. The tube hole of the upper silencer 21 is narrow at the bottom and wide at the top, and the tube hole diameter of the lower silencer 22 is the same as the lower end diameter of the upper silencer 21. The structural design of the upper silencer 21 of the ceramic silencer 2 can release heat to the surroundings.

[0022] The upper silencer 21 and the lower silencer 22 are integrally formed. With the integrally formed structural design, the ceramic silencer tube 2 can be processed and formed at one time, and the installation of the ceramic silencer tube 2 is also convenient. The upper silencer 21 and the lower silencer 22 of the ceramic silencer tube 2 are split structures. The silencer teeth 23 in the upper silencer 21 are aligned with the silencer teeth 23 in the lower silencer 22. The split structure facilitates the processing of the silencer teeth 23 in the upper silencer 21 and the lower silencer 22. During installation, they need to be placed in sections into the silencer outer tube 1, and the upper silencer 21 needs to be rotated to align with the silencer teeth 23 in the lower silencer 22. The structure of the silencer teeth 23 can be optimized according to needs, such as Figure 3 and Figure 4 shown.

[0023] The silencer outer tube 1 is composed of an upper furnace ring 11 and a lower straight tube 12. The furnace ring 11 is disc-shaped and the straight tube 12 is tubular. The diameter of the furnace ring 11 is larger than the diameter of the straight tube 12. The outer wall shape of the ceramic silencer tube 2 matches the inner diameter shape of the silencer outer tube 1 and is placed in the silencer outer tube 1. Since the burner inlet of some stove basins is small, the small-diameter straight tube 12 structure at the lower part of the silencer outer tube 1 is convenient for passing through the stove basin. The large-diameter furnace ring 11 structure at the upper part forms a heating plate to increase its heating area for the pot. The disc-shaped furnace ring 11 structure can also play a supporting role when installing the integrated ceramic silencer tube 2.

[0024] The outer silencer tube 1 is a metal tube, which can be used as a mounting structure of the ceramic silencer tube 2 and can be sleeved outside the ceramic silencer tube 2. During installation, it is only necessary to first fix the outer silencer tube 1 to the fire outlet of the stove, and then put the ceramic silencer tube 2 into the outer silencer tube 1, which is very convenient to use.

[0025] The structural design of the silencer pipe of the utility model is mainly a technical innovation based on the first generation of our company's products. Its silencer principle can also be applied to existing stoves and can also play a silencer role. It only needs to connect the structural design of the silencer outer pipe 1 with the existing stove fire outlet.

[0026] When the utility model is retrofitted to an existing stove, the silencer outer tube 1 is fixed on the fire outlet of the stove. The silencer outer tube 1 can realize the retrofit design of the existing stove, and the ceramic silencer tube 2 can realize the sound reduction. The fire outlet of the existing stove is generally provided with a hood, and the hood can serve as a support for the ceramic silencer tube 2. If it is open, it only needs to weld a baffle supporting the ceramic silencer tube 2 inside the ceramic silencer tube 2.

[0027] When the utility model is installed on the ion combustion body 3 developed by our company, Figure 5 As shown, it is only necessary to install the lower end of the silencer outer tube 1 on the vaporization combustion cylinder of the ion combustion body 3. The ion combustion body 3 of the first-generation product developed by our company adopts a spiral air intake method, and the cyclone assists the liquid fuel to be vaporized so as to burn the liquid fuel. Therefore, the flame ejected from the ion combustion body 3 is also cyclone-shaped. After entering the ceramic silencer tube 2 in a cyclone shape, it rotates at its lower part to achieve better silencing and noise reduction, and at the same time, the unburned fuel in the flame is fully burned, and the generated heat energy passes through the ceramic silencer tube 2 and is released from its upper part. The silencer teeth 23 form a wavy undulating structure in the tube hole, and can also guide the wind in the vertical direction. When the lower part of the flame ceramic silencer tube 2 rotates, the wind speed of the flame can be further reduced to silence and noise reduction, and it can be converted into movement in the vertical direction.

[0028] The above is a detailed introduction to the stove fire outlet silencer structure provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope, and changes and improvements to the utility model will be possible without exceeding the concept and scope specified in the attached claims. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A stove fire outlet silencing structure, characterized in that: It includes a silencer outer tube and a ceramic silencer tube. The main body of the ceramic silencer tube is made of porous ceramic. A plurality of silencer teeth are provided on the inner wall of the tube hole of the ceramic silencer tube. The silencer teeth are arranged along the length direction of the ceramic silencer tube and are evenly spaced along the circumferential direction of the tube hole. The silencer outer tube is sleeved outside the ceramic silencer tube.

2. A stove fire outlet silencing structure according to claim 1, characterized in that: The ceramic silencer tube is a two-stage structure, consisting of an upper silencer tube and a lower silencer tube. The tube hole of the upper silencer tube is narrow at the bottom and wide at the top, and the tube hole diameter of the lower silencer tube is the same as the lower end hole diameter of the upper silencer tube.

3. A stove fire outlet silencing structure according to claim 2, characterized in that: The upper silencer and the lower silencer are integrally formed.

4. The stove fire outlet silencing structure according to claim 2, characterized in that: The upper silencer tube and the lower silencer tube of the ceramic silencer pipe are split structures, and the silencer teeth in the upper silencer tube are aligned with the silencer teeth in the lower silencer tube.

5. The stove fire outlet silencing structure according to claim 1, characterized in that: The silencer outer tube is composed of an upper furnace ring and a lower straight tube. The furnace ring is disc-shaped and the straight tube is tubular. The diameter of the furnace ring is larger than the diameter of the straight tube. The outer wall shape of the ceramic silencer tube matches the inner diameter shape of the silencer outer tube and is placed in the silencer outer tube.

6. The stove fire outlet silencing structure according to claim 1, characterized in that: The silencer outer tube is fixed on the fire outlet of the stove.

7. The stove fire outlet silencing structure according to claim 1, characterized in that: The lower end of the silencer outer tube is installed on the vaporization combustion tube of the ion combustion body.

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