Combustor with multi-section pressure stabilizing function
By setting a multi-stage voltage stabilization structure and discharge area in the burner, the problem of insufficient combustion of existing burners is solved, and more efficient combustion and higher discharge success rate are achieved.
Patent Information
- Application Number
- CN202323530563.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing burners only have the primary premix section and the primary pressure stabilization section inside the furnace head, which causes the gas to only go through one pressure stabilization process, and the air coefficient cannot be increased, resulting in insufficient combustion.
Design a burner with multi-stage pressure stabilization function, including the primary premixed section, the primary premixed section, the transition section, the secondary premixed section, and the secondary pressure stabilization section. The air coefficient is improved through multiple boosting and pressure stabilization processes. And fix the ignition needle on the outside of the outer ring of the fire cover to increase the discharge area.
It achieves more full and environmentally friendly combustion, improves the discharge success rate, ensures that the gas in the burner is more easily ignited, and increases the discharge success rate by more than 5%.
Smart Images
Figure CN222123176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a burner with a multi-stage voltage stabilization function, belonging to the field of kitchen appliances. Background Art
[0002] Burners are one of the commonly used cooking appliances in the kitchen. Figure 1 As shown in the figure, only the primary premixing section 7 and the primary pressure stabilizing section 8 are arranged inside the burner. When the gas is inside the burner, it can only go through one pressure stabilizing process, which makes it impossible to increase the primary air coefficient, which will lead to incomplete combustion. Utility Model Content
[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a burner with a reasonable structural design and a multi-stage pressure stabilization function.
[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: the burner with multi-stage pressure stabilization function includes a burner head, an ignition needle, a thermocouple, an ignition divider and a fire cover, the ignition needle, the thermocouple and the ignition divider are all installed on the burner head, the fire cover is installed on the ignition divider, the outer wall of the fire cover is the outer ring of the fire cover, and its structural feature is that a primary premixing section, a primary pressure stabilization section, a secondary premixing section and a secondary pressure stabilization section are sequentially arranged in the burner head along the gas flow direction.
[0005] Furthermore, a transition section is provided between the primary pressure stabilization section and the secondary premixing section.
[0006] Furthermore, there are a primary premixing inlet section and a primary premixing outlet section in the primary premixing section along the gas flow direction, the aperture of the primary premixing inlet section gradually decreases along the gas flow direction, and the aperture of the primary premixing outlet section gradually increases along the gas flow direction.
[0007] Furthermore, there are a secondary premixing inlet section and a secondary premixing outlet section in the secondary premixing section along the gas flow direction, the aperture of the secondary premixing inlet section gradually decreases along the gas flow direction, and the aperture of the secondary premixing outlet section gradually increases along the gas flow direction.
[0008] Furthermore, the primary pressure stabilization section is a straight tube structure, and the length of the primary pressure stabilization section is H1, wherein 10mm
[0009] Furthermore, the secondary pressure stabilizing section is arranged in a straight tube structure, and the length of the secondary pressure stabilizing section is H2, wherein 10mm<H2<25mm.
[0010] Furthermore, the side wall of the transition section is provided with a chamfer, and the angle of the chamfer is a, wherein 125°<a<150°.
[0011] Furthermore, the ignition needle and the thermocouple are both located outside the outer ring of the fire cover.
[0012] Compared with the prior art, the utility model has the following advantages: when the gas enters the burner during use, it needs to flow through the primary premixing section, the primary pressure stabilization section, the secondary premixing section, and the secondary pressure stabilization section, that is, it needs to undergo multiple pressure boosting and pressure stabilization processes, which can make the primary air coefficient higher, the combustion more complete, and the combustion more environmentally friendly; at the same time, the ignition needle is fixed on the outside of the outer ring of the fire cover, which can increase the discharge area of the fire hole, the secondary air around the discharge surface is more sufficient, and the gas released in the burner is easier to ignite, which increases the discharge success rate by more than 5%. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The invention is a schematic diagram of the cross-sectional structure of a burner head in a burner in the prior art.
[0014] Figure 2 It is a schematic cross-sectional structure diagram of a burner head in a burner according to an embodiment of the utility model.
[0015] Figure 3 It is a schematic diagram of the explosion structure of the burner of the embodiment of the utility model.
[0016] Figure 4 It is a schematic diagram of the main structure of the burner of the embodiment of the utility model.
[0017] In the figure: burner head 1, ignition needle 2, thermocouple 3, ignition distributor 4, fire cover 5, fire cover outer ring 6, primary premixing section 7, primary pressure stabilizing section 8, secondary premixing section 9, secondary pressure stabilizing section 10, transition section 11, primary premixing inlet section 12, primary premixing outlet section 13, secondary premixing inlet section 14, secondary premixing outlet section 15. DETAILED DESCRIPTION
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0019] Example
[0020] See also Figures 2 to 4As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.
[0021] The burner with multi-stage voltage stabilization function in this embodiment includes a burner head 1, an ignition needle 2, a thermocouple 3, an ignition divider 4 and a fire cover 5. The ignition needle 2, the thermocouple 3 and the ignition divider 4 are all installed on the burner head 1, the fire cover 5 is installed on the ignition divider 4, the outer wall of the fire cover 5 is the fire cover outer ring 6, and the ignition needle 2 and the thermocouple 3 are both located on the outside of the fire cover outer ring 6.
[0022] In this embodiment, a primary premixing section 7, a primary pressure stabilizing section 8, a secondary premixing section 9 and a secondary pressure stabilizing section 10 are sequentially arranged in the burner head 1 along the gas flow direction, a transition section 11 is arranged between the primary pressure stabilizing section 8 and the secondary premixing section 9, and a side wall of the transition section 11 is provided with a chamfer, and the angle of the chamfer is a, wherein 125°<a<150°.
[0023] In this embodiment, there are a primary premixing inlet section 12 and a primary premixing outlet section 13 in the primary premixing section 7 along the gas flow direction, the aperture of the primary premixing inlet section 12 gradually decreases along the gas flow direction, and the aperture of the primary premixing outlet section 13 gradually increases along the gas flow direction; there are a secondary premixing inlet section 14 and a secondary premixing outlet section 15 in the secondary premixing section 9 along the gas flow direction, the aperture of the secondary premixing inlet section 14 gradually decreases along the gas flow direction, and the aperture of the secondary premixing outlet section 15 gradually increases along the gas flow direction.
[0024] The primary pressure stabilizing section 8 in this embodiment is a straight tube structure, and the length of the primary pressure stabilizing section 8 is H1, wherein 10mm
[0025] Specifically, the cross section of the primary premixing section 7 is a structure that is narrow in the middle and wide on both sides. When the gas enters the primary premixing outlet section 13 from the primary premixing inlet section 12, the gas passes through the cross section, the cross section gradually narrows and then widens, the speed obtained by the gas gradually increases and then gradually decreases, and at the same time, the pressure is opposite to the speed, that is, it first decreases and then increases; when the pressure changes, a pressure difference is generated, and this pressure difference will absorb the primary air from the outside into the pipeline together with the gas. After the gas and air experience pressure fluctuations, they pass through the primary premixing outlet section 13 and then enter the primary pressure stabilizing section 8. The primary pressure stabilizing section 8 is a straight pipe structure. The structure is set up to stabilize the gas speed, so that the gas and air in this area are better premixed and then enter the secondary premixing section 9. Similarly, in the secondary premixing section 9, when the gas enters the secondary premixing outlet section 15 from the secondary premixing inlet section 14, the mixed gas of the gas and air is again supplemented with primary air through the local pressure difference in the process of the pipeline aperture changing from large to small and then to large, so that the primary air coefficient is close to 1, and then the mixed gas enters the secondary pressure stabilizing section 10 from the secondary premixing outlet section 15, and enters the ignition distributor 4 from the secondary pressure stabilizing section 10 after stabilizing the speed and pressure of the mixed gas.
[0026] The gas passes through the primary premixing section 7, the primary pressure stabilization section 8, the secondary premixing section 9, and the secondary pressure stabilization section 10 in sequence. Multiple premixing and multiple pressure stabilization processes are realized to allow air and gas to be more fully mixed, allowing combustion to be more complete, reducing the content of nitrogen oxides and carbon monoxide, and being more environmentally friendly.
[0027] A chamfer connection is provided at the corner of the side wall of the transition section 11 between the primary pressure stabilization section 8 and the secondary premixing section 9. The chamfer allows the gas to pass through the area more smoothly and reduce turbulence, that is, reduce velocity loss. The chamfer is 125°<a<150°. In order to take into account pressure stabilization while reducing turbulence caused by contact between the gas and the inner wall, the lengths of the primary pressure stabilization section 8 and the secondary pressure stabilization section 10 are set to H1 and H2, respectively, 10mm
[0028] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.
Claims
1. A burner with a multi-stage voltage stabilization function, comprising a burner head (1), an ignition needle (2), a thermocouple (3), an ignition distributor (4) and a fire cover (5), wherein the ignition needle (2), the thermocouple (3) and the ignition distributor (4) are all mounted on the burner head (1), the fire cover (5) is mounted on the ignition distributor (4), and the outer wall of the fire cover (5) is a fire cover outer ring (6), characterized in that: A primary premixing section (7), a primary pressure stabilizing section (8), a secondary premixing section (9) and a secondary pressure stabilizing section (10) are sequentially arranged in the burner head (1) along the gas flow direction.
2. The burner with multi-stage pressure stabilization function according to claim 1, characterized in that: A transition section (11) is provided between the primary pressure stabilization section (8) and the secondary premixing section (9).
3. The burner with multi-stage pressure stabilization function according to claim 1, characterized in that: A primary premixing inlet section (12) and a primary premixing outlet section (13) are present in the primary premixing section (7) along the gas flow direction. The aperture of the primary premixing inlet section (12) gradually decreases along the gas flow direction, and the aperture of the primary premixing outlet section (13) gradually increases along the gas flow direction.
4. The burner with multi-stage pressure stabilization function according to claim 1 is characterized in that: A secondary premixing inlet section (14) and a secondary premixing outlet section (15) are present in the secondary premixing section (9) along the gas flow direction. The aperture of the secondary premixing inlet section (14) gradually decreases along the gas flow direction, and the aperture of the secondary premixing outlet section (15) gradually increases along the gas flow direction.
5. The burner with multi-stage pressure stabilization function according to claim 1, characterized in that: The primary pressure stabilization section (8) is arranged in a straight tube structure, and the length of the primary pressure stabilization section (8) is H1, wherein 10 mm < H1 < 25 mm.
6. The burner with multi-stage pressure stabilization function according to claim 1, characterized in that: The secondary pressure stabilizing section (10) is arranged in a straight tube structure, and the length of the secondary pressure stabilizing section (10) is H2, wherein 10 mm < H2 < 25 mm.
7. The burner with multi-stage pressure stabilization function according to claim 2, characterized in that: The side wall of the transition section (11) is provided with a chamfer, the angle of the chamfer is a, wherein 125°<a<150°.
8. The burner with multi-stage pressure stabilization function according to claim 1, characterized in that: The ignition needle (2) and the thermocouple (3) are both located outside the outer ring (6) of the fire cover.