Split type energy-saving low-noise hearth

Abstract

A pot body is placed on the split type energy-saving low-noise hearth, the split type energy-saving low-noise hearth comprises a hearth upper ring, a polycrystalline fiber cotton layer and a hearth lower piece which are sequentially arranged from top to bottom, and the hearth upper ring and the hearth lower piece are of a split type structure. The upper hearth ring is in a circular ring shape, two groups of first grooves penetrating longitudinally are distributed in the inner side face of the upper hearth ring in the circumferential direction, protruding blocks are arranged at the first grooves, the tops of the protruding blocks are higher than the top of the upper hearth ring, and the faces, close to the circle center of the upper hearth ring, of the protruding blocks and the inner side face of the upper hearth ring are distributed in a staggered mode to form first smoke discharging grooves. The first smoke discharging groove is located in the first groove, and the top of the protruding block and the top of the hearth upper ring are attached to the bottom of the pot body. By means of the staggered design, noise is reduced, the flowing time of smoke is prolonged, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of furnace components, and particularly to a split-type energy-saving and low-noise furnace. Background Art

[0002] The existing furnace has only one gas baffle ring, with large exhaust noise and low thermal efficiency; at the same time, the design of the reflector is adopted, and the effect of improving the thermal efficiency is not obvious enough.

[0003] In addition, the upper ring of the furnace and the lower part of the furnace are of an integral structure, the reflector is attached to the lower part of the furnace, and the outer diameter of the reflector is smaller than the inner diameter of the bottom of the upper ring of the furnace, that is, there is a gap between the two, which is not only not beautiful but also food residues are likely to be generated at the top of the reflector.

[0004] Then, in the prior art, in order to be durable, the reflector is more than 20 mm, even more than 40 mm away from the bottom of the pot body. The temperature of the reflector is not high enough, and the improvement of the thermal efficiency is limited.

[0005] Finally, in the prior art, the inner surface of the lower part of the furnace is generally straight, which does not match the bottom of the arc-shaped pot body. The distance from the bottom of the pot body shows that the distances at both sides are large and the distance in the middle is small, the distance is uneven, and the heat is unevenly distributed. Summary of the Invention

[0006] The purpose of the present invention is to provide a split-type energy-saving and low-noise furnace with a misaligned design distribution to form two gas baffle rings to reduce noise and improve the heat exchange efficiency at the same time, aiming at the deficiencies of the existing furnace in the background art, such as large exhaust noise, low thermal efficiency, and high energy consumption.

[0007] A split-type energy-saving and low-noise furnace, on which a pot body is placed, includes a furnace upper ring, a polycrystalline fiber cotton layer, and a furnace lower part arranged in sequence from top to bottom, and the furnace upper ring and the furnace lower part are of a split-type structure.

[0008] The furnace upper ring is circular, and two groups of longitudinally penetrating first grooves are circumferentially distributed on the inner side surface of the furnace upper ring. A convex block is provided at the first groove, the top of the convex block is higher than the top of the furnace upper ring, and the surface of the convex block close to the center of the furnace upper ring is misaligned with the inner side surface of the furnace upper ring to form a first exhaust groove, and the first exhaust groove is located in the first groove. The top of the convex block and the top of the furnace upper ring are both in contact with the bottom of the pot body.

[0009] The polycrystalline fiber cotton layer is arranged on the inner surface of the furnace lower part, and the inner surface of the furnace lower part and the polycrystalline fiber cotton layer are both arc-shaped and match the bottom of the pot body.

[0010] A split-type energy-saving and low-noise furnace, on which a pot body is placed, includes a furnace upper ring, a polycrystalline fiber cotton layer, and a furnace lower part arranged in sequence from top to bottom, and the furnace upper ring and the furnace lower part are of a split-type structure.

[0011] The upper ring of the furnace includes an outer furnace ring and an inner furnace ring arranged coaxially from outside to inside in sequence. The inner diameter of the outer furnace ring is greater than the outer diameter of the inner furnace ring. Both the outer furnace ring and the inner furnace ring are provided with completely penetrating second grooves, and the second grooves on the outer furnace ring and the second grooves on the inner furnace ring are staggeredly distributed to form a second smoke exhaust groove. The top of the outer furnace ring is at the same height as the top of the inner furnace ring and both are in contact with the bottom of the pot body.

[0012] The polycrystalline fiber cotton layer is arranged on the inner surface of the lower part of the furnace.

[0013] In one embodiment, the outer diameter of the top of the polycrystalline fiber cotton layer is greater than the minimum inner diameter of the bottom of the upper ring of the furnace.

[0014] In one embodiment, a heat preservation cotton layer is further arranged between the polycrystalline fiber cotton layer and the lower part of the furnace.

[0015] In one embodiment, the cross-section of the side of the first smoke exhaust groove is an inverted triangle.

[0016] In one embodiment, at least one limiting block is circumferentially and uniformly arranged at the bottom of the inner side surface of the upper ring of the furnace to prevent the polycrystalline fiber cotton layer from moving upward.

[0017] In one embodiment, the distance between the inner diameter of the outer furnace ring and the outer diameter of the inner furnace ring is less than 10 mm.

[0018] In one embodiment, the distance between the polycrystalline fiber cotton layer and the bottom of the pot body is ≤ 10 mm.

[0019] In one embodiment, the bottom surface of the upper ring of the furnace and the top surface of the lower part of the furnace enclose an annular channel with a triangular cross-section.

[0020] In one embodiment, a burner installation hole is provided at the center of the bottom of the lower part of the furnace;

[0021] The surface of the polycrystalline fiber cotton layer is provided with a high-temperature infrared radiation coating.

[0022] Advantages and beneficial effects of the present invention:

[0023] The top of the convex block of the present invention is higher than the top of the upper ring of the furnace. The side of the convex block close to the center of the upper ring of the furnace is staggeredly distributed with the inner side surface of the upper ring of the furnace to form a first smoke exhaust groove. This height difference and staggered distribution design is equivalent to forming two inner and outer gas blocking rings (i.e., the inner side surface of the convex block is equivalent to the outer gas blocking ring, and the inner side surface of the upper ring of the furnace is equivalent to the inner gas blocking ring). After the flue gas passes through the inner gas blocking ring, it reaches the first smoke exhaust groove and is blocked by the convex block, and then needs to bypass the convex block left and right ( Figure 1The arrow in ( ) indicates the flow direction of the flue gas. The two airflows between adjacent bumps converge to reduce noise. At the same time, this offset design also prolongs the flowing time of the flue gas and improves the heat exchange efficiency.

[0024] The upper ring of the furnace of the present invention includes a furnace outer ring and a furnace inner ring arranged coaxially from outside to inside in sequence. The second grooves on the furnace outer ring and the second grooves on the furnace inner ring are offset from each other to form a second smoke exhaust groove. This design makes the furnace outer ring and the furnace inner ring equivalent to two air blocking rings. And due to their offset design, similarly, after the flue gas passes through the furnace inner ring, it is blocked by the furnace outer ring, and then needs to bypass the furnace outer ring left and right. The two adjacent airflows converge at the second grooves on the furnace outer ring to reduce noise. At the same time, this offset design also prolongs the flowing time of the flue gas and improves the heat exchange efficiency.

[0025] The present invention replaces the reflector with a polycrystalline fiber cotton layer. The distance between the polycrystalline fiber cotton layer and the bottom of the pot body is ≤10 mm, which can further improve the thermal efficiency of the present invention and reduce energy consumption.

[0026] The upper ring of the furnace of the present invention and the lower part of the furnace are of a split structure, and the outer diameter of the top of the polycrystalline fiber cotton layer is larger than the minimum inner diameter of the bottom of the upper ring of the furnace, that is, the top of the polycrystalline fiber cotton layer is covered by the bottom of the upper ring of the furnace, so that food residues are not easily generated and it is beautiful.

[0027] The inner surface of the lower part of the furnace of the present invention and the polycrystalline fiber cotton layer are both arc-shaped to match the bottom of the pot body, with uniform heat absorption. And the distance between the polycrystalline fiber cotton layer and the bottom of the pot body is ≤10 mm, and the thermal efficiency is better.

[0028] The design of the polycrystalline fiber cotton layer and the heat insulation layer of the present invention can absorb part of the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic three-dimensional structure diagram of Embodiment 1. ( Figure 1 The arrow in indicates the flow direction of the flue gas)

[0030] Figure 2 is Figure 1 a partial sectional view of the upper ring of the furnace in.

[0031] Figure 3 is Figure 1 a top view of.

[0032] Figure 4 is Figure 3 a sectional view taken along line A-A in. ( Figure 4 A pot body is placed in)

[0033] Figure 5 is a top view of Embodiment 2.

[0034] Figure 6 isFigure 5 The sectional view taken along line B-B in Detailed implementation manners

[0035] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0036] It should be noted that when an element is considered to be "disposed" on another element, it can be directly disposed or connected to the other element or there may be an intermediate element present at the same time. The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Embodiment 1

[0038] Please refer to Figures 1 to 4 , a split-type energy-saving and low-noise furnace, on which a pot body 1 is placed (the furnace of this Embodiment 1 is suitable for an arc-bottom pot), including a furnace upper ring 2, a polycrystalline fiber cotton layer 3 and a furnace lower part 4 arranged in sequence from top to bottom, and the furnace upper ring 2 and the furnace lower part 4 are of a split structure.

[0039] As Figure 1 and Figure 2 , the furnace upper ring 2 is circular, and two groups of longitudinally penetrating first grooves 21 are circumferentially distributed on the inner side surface of the furnace upper ring 2, and convex blocks 22 are provided at the first grooves 21. The top of the convex block 22 is higher than the top of the furnace upper ring 2. The surface of the convex block 22 close to the center of the furnace upper ring 2 is misaligned with the inner side surface of the furnace upper ring 2 to form a first smoke exhaust groove 23, and the first smoke exhaust groove 23 is located in the first groove 21. As Figure 4 , the top of the convex block 22 and the top of the furnace upper ring 2 are both in contact with the bottom of the pot body 1.

[0040] As Figure 4, the polycrystalline fiber cotton layer 3 is arranged on the inner surface of the lower part 4 of the furnace chamber. The inner surface of the lower part 4 of the furnace chamber and the polycrystalline fiber cotton layer 3 are both arc-shaped to match the bottom of the pot body 1.

[0041] Specifically, as Figure 4 , the outer diameter of the top of the polycrystalline fiber cotton layer 3 is larger than the minimum inner diameter of the bottom of the upper ring 2 of the furnace chamber.

[0042] A heat insulation cotton layer 5 is also arranged between the polycrystalline fiber cotton layer 3 and the lower part 4 of the furnace chamber.

[0043] Such as Figure 1 and Figure 2 , the cross-section of the side surface of the first smoke exhaust groove 23 is an inverted triangle.

[0044] Among them, at least one limiting block 6 is evenly distributed circumferentially at the bottom of the inner side surface of the upper ring 2 of the furnace chamber to prevent the polycrystalline fiber cotton layer 3 from moving.

[0045] Such as Figure 3 , in this Embodiment 1, the number of each group of first grooves 21 is five. In other embodiments, the number of first grooves 21 can also be six, seven, eight, and so on.

[0046] Such as Figure 4 , the distance between the polycrystalline fiber cotton layer 3 and the bottom of the pot body 1 ≤ 10 mm.

[0047] Such as Figure 4 , the bottom surface of the upper ring 2 of the furnace chamber and the top surface of the lower part 4 of the furnace chamber enclose an annular channel 7 with a triangular cross-section. A burner installation hole 8 is provided at the center of the bottom of the lower part 4 of the furnace chamber.

[0048] Specifically, the surface of the polycrystalline fiber cotton layer 3 is provided with a high-temperature infrared radiation coating.

[0049] The working principle and working process of this Embodiment 1:

[0050] Such as Figure 1 and Figure 4 The flue gas in the furnace chamber passes through the inner side surface of the upper ring 2 of the furnace chamber, and then flows through the first smoke exhaust groove 23 formed by the dislocation design of the inner side surface of the convex block 22 and the inner side surface of the upper ring 2 of the furnace chamber. Finally, the flue gas is discharged in two left and right paths as shown by the arrows in Figure 1 . Embodiment 2

[0051] Please refer to Figure 5 and Figure 6 , a split-type energy-saving and low-noise furnace chamber, on which a pot body is placed (the furnace chamber of this Embodiment 1 is applicable to a flat-bottomed pot), including the upper ring 2 of the furnace chamber, the polycrystalline fiber cotton layer 3, and the lower part 4 of the furnace chamber arranged in sequence from top to bottom, and the upper ring 2 of the furnace chamber and the lower part 4 of the furnace chamber are of a split structure.

[0052] Specifically, the upper ring 2 of the furnace chamber includes a furnace outer ring 24 and a furnace inner ring 25 that are coaxially arranged and sequentially arranged from outside to inside. The outer diameter of the furnace outer ring 24 is greater than the outer diameter of the furnace inner ring 25. The furnace outer ring 24 and the furnace inner ring 25 are both provided with completely penetrating second grooves 26, and the second grooves 26 on the furnace outer ring 24 and the second grooves 26 on the furnace inner ring 25 are misaligned to form a second smoke exhaust groove 27. The top of the furnace outer ring 24 is at the same height as the top of the furnace inner ring 25 and both are in contact with the bottom of the pot body.

[0053] Among them, the polycrystalline fiber cotton layer 3 is arranged on the inner surface of the lower part 4 of the furnace chamber. As Figure 6 , the inner diameter of the top of the polycrystalline fiber cotton layer 3 is greater than the minimum inner diameter of the bottom of the upper ring 2 of the furnace chamber. There is also a heat insulation cotton layer 5 between the polycrystalline fiber cotton layer 3 and the lower part 4 of the furnace chamber. The distance between the inner diameter of the furnace outer ring 24 and the outer diameter of the furnace inner ring 25 is less than 10 mm.

[0054] As Figure 6 , a burner installation hole 8 is provided at the center of the bottom of the lower part 4 of the furnace chamber. The surface of the polycrystalline fiber cotton layer 3 is provided with a high-temperature infrared radiation coating.

[0055] The working principle and working process of Embodiment 2 of the present invention:

[0056] As Figure 5 and Figure 6 The flue gas in the furnace chamber passes through the furnace inner ring 25, and then flows through the second smoke exhaust groove 27 formed by the misaligned design of the second groove 26 on the furnace inner ring 25 and the second groove 26 on the furnace outer ring 24. Finally, the flue gas is discharged in two left and right paths as shown by the arrows in Figure 5 .

[0057] It should be noted that: in other embodiments, it is not limited to two gas baffle rings, and there can also be multiple gas baffle rings.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they are all included in the scope described in this specification.

Claims

1. A split energy-saving and low-noise furnace, on which a pot is placed, characterized in that: It includes a furnace upper ring, a polycrystalline fiber cotton layer and a furnace lower part which are arranged in sequence from top to bottom, and the furnace upper ring and the furnace lower part are split structures; The furnace upper ring is in a circular shape, and two groups of longitudinally penetrating first grooves are circumferentially distributed on the inner side surface of the furnace upper ring. A convex block is provided at the first groove, and the top of the convex block is higher than the top of the furnace upper ring. A side of the convex block close to the center of the furnace upper ring is staggered with the inner side surface of the furnace upper ring to form a first smoke exhaust groove, and the first smoke exhaust groove is located in the first groove, and the top of the convex block and the top of the furnace upper ring are both in contact with the bottom of the pot body; The polycrystalline fiber cotton layer is arranged on the inner surface of the lower furnace part, and the inner surface of the lower furnace part and the polycrystalline fiber cotton layer are both in an arc shape matching the bottom of the pot body.

2. The split energy-saving and low-noise furnace according to claim 1 is characterized in that: The cross section of the side of the first smoke exhaust groove is an inverted triangle.

3. The split energy-saving and low-noise furnace according to claim 1 is characterized in that: The distance between the polycrystalline fiber cotton layer and the bottom of the pot body is ≤10mm.

4. The split energy-saving and low-noise furnace according to claim 1 is characterized in that: The bottom surface of the furnace upper ring and the top surface of the furnace lower piece enclose an annular channel with a triangular cross section.

5. A split energy-saving and low-noise furnace, on which a pot is placed, characterized in that: It includes a furnace upper ring, a polycrystalline fiber cotton layer and a furnace lower part which are arranged in sequence from top to bottom, and the furnace upper ring and the furnace lower part are split structures; The furnace upper ring comprises a furnace outer ring and a furnace inner ring which are coaxial and arranged in sequence from outside to inside, the inner diameter of the furnace outer ring is larger than the outer diameter of the furnace inner ring, the furnace outer ring and the furnace inner ring are both provided with a second groove which completely penetrates through, and the second groove on the furnace outer ring and the second groove on the furnace inner ring are staggered to form a second smoke exhaust groove, the top of the furnace outer ring is consistent with the top of the furnace inner ring in height and both fit with the bottom of the pot body; The polycrystalline fiber cotton layer is arranged on the inner surface of the furnace lower part.

6. The split energy-saving and low-noise furnace according to claim 1 or 5, characterized in that: The outer diameter of the top of the polycrystalline fiber cotton layer is greater than the smallest inner diameter of the bottom of the upper circle of the furnace.

7. The split energy-saving and low-noise furnace according to claim 1 or 5, characterized in that: A heat-insulating cotton layer is also provided between the polycrystalline fiber cotton layer and the furnace lower part.

8. The split energy-saving and low-noise furnace according to claim 6 is characterized in that: At least one limiting block is evenly distributed circumferentially at the bottom of the inner side surface of the upper ring of the furnace to prevent the polycrystalline fiber cotton layer from moving.

9. The split energy-saving and low-noise furnace according to claim 5 is characterized in that: The distance between the inner diameter of the furnace outer ring and the outer diameter of the furnace inner ring is less than 10 mm.

10. The split energy-saving and low-noise furnace according to claim 1 or 5, characterized in that: A furnace head mounting hole is provided at the center of the bottom of the furnace lower part; The surface of the polycrystalline fiber cotton layer is provided with a high-temperature infrared radiation coating.

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