Fire cover for strong fire furnace
By designing the trapezoidal groove structure and inclined surface of the annular fire cover, the problem of insufficient mixing of gas and air in the fierce fire stove is solved, the gas flow rate and pressure are increased, the flame is stabilized, and the heating efficiency and temperature are improved.
Patent Information
- Application Number
- CN202422809744.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The existing fierce fire stove cover design makes it difficult for gas and air to be fully mixed under high pressure and high gas flow rate, the gas stability is poor, the flame is prone to jumping and shaking, and cannot meet the needs of rapid heating.
A ring-shaped fire cover is designed, in which the fire outlet is a trapezoidal groove structure with side inclined surfaces and outer inclined surfaces on both sides. The gas gradually increases its flow rate and pressure in the fire outlet, improving the mixing efficiency, and gathers the flame through the inner opening to provide a higher temperature.
It increases the flow rate and pressure of gas, enhances the mixing efficiency of gas and air, stabilizes the flame, and provides higher heating temperature and thermal efficiency.
Smart Images
Figure CN223375801U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fire cover, in particular to a fire cover for a fierce fire stove. Background Art
[0002] Combustion stoves are generally categorized as household gas stoves and commercial high-fire stoves. The gas flow rate of a high-fire stove differs from that of a household gas stove. High-fire stoves typically have a higher gas flow rate than household gas stoves because they require greater firepower to heat quickly. The high gas flow rate of a high-fire stove is designed to achieve its powerful heating capacity and is typically used in locations requiring rapid heating, such as large restaurants and cafeterias. In contrast, household gas stoves have a lower gas flow rate, suitable for everyday cooking needs and providing a stable firepower.
[0003] However, existing fierce fire stoves often adopt a direct injection structure, and the fire cover uses a round hole to directly spray. Under the condition of high pressure and high gas flow rate, it is difficult for the gas and air to be fully mixed, the gas stability is also poor, and the flame is prone to jumping and shaking. Therefore, further improvement is needed. Utility Model Content
[0004] The purpose of the utility model is to provide a fire cover for a fierce fire stove which can pressurize, speed up and stabilize gas, so as to overcome the shortcomings of the prior art.
[0005] A fire cover for a fierce fire stove designed for this purpose includes a cover body with an annular structure, which can be installed on the annular air supply seat of the fierce fire stove; a plurality of fire outlet holes are evenly spaced along the circumference on the inner side of the cover body; the fire outlet holes are in the form of a trapezoidal groove structure expanding from bottom to top, with side inclined surfaces inclined toward the circumference on both sides; the inner side of the fire outlet hole is opened.
[0006] Furthermore, an outer inclined surface is provided on the side of the fire outlet facing outward, and an upper portion of the outer inclined surface is inclined toward the outside.
[0007] Furthermore, the included angle between the outer inclined surface and the vertical surface is in the range of 3° to 5°.
[0008] Furthermore, the included angle between the outer inclined surface and the vertical surface is 4°.
[0009] Furthermore, the outer inclined surface and the side inclined surface transition in an arc shape.
[0010] Furthermore, the two side inclined surfaces of the same fire outlet are arranged in an isosceles trapezoidal structure, and the angle between the two side inclined surfaces is in the range of 30° to 50°.
[0011] Furthermore, the included angle between the two side inclined surfaces of the same fire outlet is in the range of 35° to 45°.
[0012] Furthermore, the included angle between the two side inclined surfaces of the same fire outlet is 41°.
[0013] Furthermore, the bottom width of the fire hole is in the range of 4 mm to 6 mm.
[0014] Furthermore, the outer wall of the cover body is tilted inwards.
[0015] The fire cover of the fierce fire stove in the present invention is formed into an annular structure, which is covered on the annular gas supply base of the fierce fire stove, and a plurality of fire holes are evenly spaced along the circumferential direction on the inner side. The fire holes are in a trapezoidal groove structure expanding from bottom to top, and side inclined surfaces inclined toward the circumferential direction are provided on both sides; in the process of high-pressure gas being sprayed from bottom to top, the gas enters the trapezoidal groove of the fire hole along the direction of the gas outlet pipe, and as the cross-sectional space of the groove gradually decreases, the gas flow rate increases and the pressure increases. While maintaining a large gas flow rate of the fierce fire stove and within the same unit time, the gas flow rate and pressure can be effectively increased, the mixing efficiency of the gas and air can be improved, and the combustion efficiency of the gas can be effectively improved; and the inner side of the fire hole is opened, and part of the gas flows out inward, which can further gather the flame and provide a higher temperature for stir-frying when cooking.
[0016] In summary, the utility model has the characteristics of pressurizing, increasing speed and stabilizing gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;
[0018] Figure 2 It is a schematic diagram of the main view of the fire cover for a fierce fire stove.
[0019] Figure 3 for Figure 2 Schematic cross-sectional view of V1-V1 in FIG.
[0020] Figure 4 This is a schematic diagram of the use state of the utility model.
[0021] Figure 5 This is a side view of the product.
[0022] In the figure: 10 is the cover body, 20 is the fire outlet, 21 is the side inclined surface, and 22 is the outer inclined surface. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] See also Figure 1-Figure 5The utility model proposes a fire cover for a fierce fire stove, comprising a cover body 10 of an annular structure, which can be installed on the annular air supply seat of the fierce fire stove; a plurality of fire outlet holes 20 are evenly spaced along the circumference on the inner side of the cover body 10; the fire outlet holes 20 are in a trapezoidal groove structure expanding from bottom to top, and side inclined surfaces 21 inclined toward the circumference are provided on both sides; the inner side of the fire outlet hole 20 is opened.
[0025] In this embodiment, the fierce fire stove is provided with a fire cover shaped annular structure, which is provided on the annular gas supply base of the fierce fire stove, and a plurality of fire holes 20 are evenly spaced along the circumferential direction on the inner side. The fire holes 20 are in a trapezoidal groove structure expanding from bottom to top, and side inclined surfaces 21 inclined toward the circumferential direction are provided on both sides; in the process of high-pressure gas being ejected from bottom to top, the groove cross-sectional space gradually expands along the trapezoidal groove of the fire hole 20, the gas flow rate increases, and the pressure increases. While maintaining a large gas flow rate of the fierce fire stove, the gas flow rate and pressure are effectively improved, and the combustion efficiency of the gas is effectively improved; and the inner side opening of the fire hole 20 is provided, and part of the gas flows out inward, which can further gather the flame, provide a higher temperature for stir-frying during cooking, and have higher thermal efficiency.
[0026] See Figure 3 The fire hole 20 is provided with an outer inclined surface 22 on the side facing outward, and the upper portion of the outer inclined surface 22 is inclined outward. The outer inclined surface 22 can further expand the cross-sectional space of the fire hole 20 from bottom to top, and within the limited thickness span of the fire cover, the gas flow rate and pressure are further reduced, and the output coverage area of the flame gas is expanded, so as to better cover the bottom of the pot and heat the bottom of the pot more evenly.
[0027] In this embodiment, after multiple simulations and tests, it was verified that when the angle K1 between the outer inclined surface 22 and the vertical surface is in the range of 3° to 5°, the combustion efficiency of the gas flow is higher and the flow is more stable.
[0028] Preferably, the included angle K1 between the outer inclined surface 22 and the vertical surface is 4°.
[0029] Furthermore, in order to make the gas flow more stable and smooth and to facilitate demoulding of the mold, the outer inclined surface 22 and the side inclined surface 21 transition in an arc shape.
[0030] In this embodiment, the two side inclined surfaces 21 of the same fire outlet 20 are arranged in an isosceles trapezoidal structure. After multiple simulations and tests, it is verified that the angle K2 between the two side inclined surfaces 21 is between 30° and 50°.
[0031] After multiple simulations and tests, it was found that the angle K2 between the two side inclined surfaces 21 of the same fire hole 20 is in the range of 35° to 45° as a preferred design range.
[0032] Preferably, the included angle K2 between the two side inclined surfaces 21 of the same fire outlet 20 is 41°.
[0033] In this embodiment, after multiple simulations and tests, in order to maintain the output of fierce fire gas flow at the fire hole, the bottom width D1 of the fire hole 20 is in the range of 4 mm to 6 mm.
[0034] Preferably, the bottom width D1 of the fire hole 20 is 5.2 mm.
[0035] See also Figure 5 The outer wall of the cover body is tilted inwards. Under the premise of meeting the gas flow rate and pressure, the outer wall tilted inwards can reduce the weight of the entire product, that is, reduce the production cost.
[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A fire cover for a fierce fire stove, characterized by: The invention comprises a cover body (10) of an annular structure, wherein the cover body (10) can be covered on an annular air supply seat of a fierce fire stove; a plurality of fire outlet holes (20) are evenly spaced along the circumference on the inner side of the cover body (10); the fire outlet holes (20) are in the form of a trapezoidal groove structure expanding from bottom to top, and side inclined surfaces (21) inclined toward the circumference are provided on both sides; the inner side of the fire outlet hole (20) is opened.
2. The fire cover for a fierce fire stove according to claim 1, characterized in that An outer inclined surface (22) is provided on the outer side of the fire outlet (20), and the upper portion of the outer inclined surface (22) is inclined toward the outer side.
3. The fire cover for a fierce fire stove according to claim 2, characterized in that The included angle between the outer inclined surface (22) and the vertical surface is in the range of 3° to 5°.
4. The fire cover for a fierce fire stove according to claim 3, characterized in that The included angle between the outer inclined surface (22) and the vertical surface is 4°.
5. The fire cover for a fierce fire stove according to claim 2, characterized in that The outer inclined surface (22) and the side inclined surface (21) transition in an arc shape.
6. The fire cover for a fierce fire stove according to claim 1, characterized in that The two side inclined surfaces (21) of the same fire outlet (20) are arranged in an isosceles trapezoidal structure, and the included angle between the two side inclined surfaces (21) is in the range of 30° to 50°.
7. The fire cover for a fierce fire stove according to claim 5, characterized in that The included angle between the two side inclined surfaces (21) of the same fire outlet hole (20) is in the range of 35° to 45°.
8. The fire cover for a fierce fire stove according to claim 6, characterized in that The included angle between the two side inclined surfaces (21) of the same fire outlet hole (20) is 41°.
9. The fire cover for a fierce fire stove according to claim 1, characterized in that The bottom width of the fire outlet hole (20) is in the range of 4 mm to 6 mm.
10. The fire cover for a fierce fire stove according to claim 1, characterized in that The outer wall of the cover body (10) is arranged to be inclined inwards.