Sleeve type heating furnace inner chamber

Abstract

The utility model relates to the technical field of heating furnace inner chamber structures, in particular to a sleeve type heating furnace inner chamber which comprises a bottom cylinder, an inner cylinder and an outer cover, the inner cylinder is arranged at the top end of the bottom cylinder, the outer cover is arranged on the outer side of the top end of the inner cylinder in a sleeved mode, and the bottom cylinder comprises an outer cylinder skin, cover plates fixed to the upper end and the lower end of the outer cylinder skin and sintered soil adhered to the inner sides of the two cover plates. Air outlet grooves are formed in the middles of the two sets of cover plates, air inlet nozzles are fixed to the bottom ends of the air outlet grooves, and the air inlet nozzles communicate with each other through a coil pipe to serve as a main combustion process; then, a part of air below the outer furnace shell can be transmitted to the upper part of the combustion chamber from the air inlet nozzle, the coil pipe and the air inlet nozzle, and is fed to the upper part of the combustion chamber from the vent holes to serve as secondary air, namely, 'on-fire air ', and the local high temperature of flame is reduced by utilizing an air staged combustion technology, so that unburnt fuel in the combustion chamber is continuously burnt; the emission of nitrogen oxides is effectively reduced, the combustion efficiency is effectively improved, and the coil pipe is wound in the coil pipe, so that the effect of enhancing heat preservation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating stove inner chamber structures, in particular to a sleeve type heating stove inner chamber. Background Art

[0002] Solid fuel heating table, also known as solid fuel heating stove, is a heating device that uses solid fuel to burn for heating. Nowadays, solid fuel heating stoves often have a furnace in the main body of the stove table, a detachable furnace core in the furnace, and the solid fuel is placed in the furnace core to continue burning.

[0003] For example, patent number CN201620517136.4 discloses a diversified dining table heating stove. The lower part of the furnace core of this type of heating stove is often a grid-like structure to place solid fuel and allow air to be fed in from below. After the fuel burns in the furnace core, high-temperature smoke is sent out from above. However, with only air fed in from below, the combustion of solid fuel is often insufficient, and harmful substances such as nitrogen oxides are easily produced. In addition, the combustion energy efficiency is also low, and the insulation effect is poor. Therefore, further improvements are needed. Utility Model Content

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a sleeve-type heating stove inner chamber, which can effectively solve the problems of insufficient combustion and poor heat preservation effect in the prior art.

[0006] Technical Solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The utility model provides a sleeve-type heating stove inner chamber, comprising a bottom tube, an inner tube and an outer cover, wherein the inner tube is placed at the top end of the bottom tube, and the outer cover is sleeved on the outside of the top end of the inner tube, the bottom tube comprises an outer tube skin, cover plates fixed to the upper and lower ends of the outer tube skin, and sintered soil adhered to the inner sides of two groups of cover plates, air outlet grooves are opened in the middle parts of the two groups of cover plates, air inlet nozzles are fixed to the bottom ends of the air outlet grooves, and the air inlet nozzles are connected by coils, and the coils are wound between the outer tube skin and the sintered soil.

[0009] Furthermore, the inner cylinder is a hollow structure, and a plurality of groups of air holes are arranged in an array at equal distances on the inner and outer side walls thereof.

[0010] Furthermore, the inner dimension of the outer cover is matched with the outer dimension of the inner cylinder.

[0011] Furthermore, two groups of air outlet grooves are symmetrically provided on the cover plate, and each group of air inlet nozzles is trumpet-shaped with a large outside and a small inside.

[0012] Furthermore, at least two groups of coiled pipes are arranged on a set of the air inlets, and each group of coiled pipes is distributed in a zigzag manner in the space between the sintered soil and the outer cylinder skin.

[0013] Furthermore, the coiled pipes are all made of copper metal material.

[0014] Beneficial effects

[0015] The technical solution provided by the present utility model has the following beneficial effects compared with the known public technology:

[0016] Through the combined structure of multiple groups of air inlets - coiled pipes - air inlets set in the present utility model, firstly, the double-layer structure of the outer cylinder skin and the sintered soil can achieve a good heat preservation effect, and the inside thereof can promote the more reasonable distribution of fuel gas or combustion-supporting gas in the furnace, with stronger gas turbulent kinetic energy, more sufficient combustion of materials, being beneficial to the complete combustion of hazardous waste, effectively preventing the coking of materials on the inner wall of the inner cylinder, and the multiple groups of coiled pipe structures can enhance the structural strength and stiffness of the rotary incinerator.

[0017] In this device, solid fuel can be placed in the combustion chamber from the feeding port, and the air in the furnace can enter from below the outer furnace shell and enter the lower area of the combustion chamber from the air inlet to be mixed with the fuel for combustion, which is the main combustion process; then, a part of the air below the outer furnace shell can also be transferred from the air inlet - coiled pipe - air inlet to the upper part of the combustion chamber and be sent into the upper part of the combustion chamber from the air permeable holes as secondary air, that is, "over-fire air". By using the air staging combustion technology, the local high temperature of the flame is reduced, enabling the unburned fuel in the combustion chamber to continue burning, effectively reducing the emission of nitrogen oxides, effectively improving the combustion efficiency, and the coiled pipes are wound inside, which can achieve the effect of enhancing heat preservation. Description of the drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a structural schematic diagram of the present utility model;

[0020] Figure 2 It is a structural schematic diagram of the bottom cylinder - inner cylinder and the outer cover of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of the bottom cylinder and the inner cylinder of the present utility model;

[0022] Figure 4This is the structural breakdown diagram of the insole cylinder of the present utility model.

[0023] The reference numerals in the figure respectively represent: 1. Insole cylinder; 11. Outer cylinder skin; 12. Sintered soil; 13. Cover plate; 131. Air outlet groove; 14. Coiled pipe; 15. Air inlet nozzle; 2. Inner cylinder; 21. Ventilation holes; 3. Outer cover. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model will be further described below with reference to the embodiments.

[0026] Embodiment: An inner cavity of a sleeve-type heating furnace, referring to the attached Figure 1 - attached Figure 4 , including an insole cylinder 1, an inner cylinder 2 and an outer cover 3. The inner cylinder 2 is placed at the top of the insole cylinder 1, and the outer cover 3 is sleeved outside the top of the inner cylinder 2. The insole cylinder 1 includes an outer cylinder skin 11, cover plates 13 fixed to the upper and lower ends of the outer cylinder skin 11, and sintered soil 12 adhered to the inner sides of the two groups of cover plates 13. Air outlet grooves 131 are provided in the middle of the two groups of cover plates 13, and air inlet nozzles 15 are fixed to the bottom ends of the air outlet grooves 131. The air inlet nozzles 15 are connected through a coiled pipe 14, and the coiled pipe 14 is wound between the outer cylinder skin 11 and the sintered soil 12; through the combined structure of multiple groups of air inlet nozzles 15 - coiled pipe 14 - air inlet nozzles 15, first of all, the double-layer structure of the outer cylinder skin 11 and the sintered soil 12 can achieve a good heat preservation effect, and the inside can promote the more reasonable distribution of fuel gas or combustion-supporting gas in the furnace, with stronger gas turbulent kinetic energy, more complete combustion of materials, which is beneficial to the complete combustion of hazardous waste, and can effectively prevent the coking of materials on the inner wall of the inner cavity. The structure of multiple groups of coiled pipes 14 can enhance the structural strength and stiffness of the rotary incinerator.

[0027] The inner cylinder 2 is of a hollow structure, and a plurality of groups of air holes 21 are equidistantly arranged in an array on its inner and outer side walls; the inner size of the outer cover 3 is adapted to the outer size of the inner cylinder 2; two groups of air outlet grooves 131 are symmetrically arranged on the cover plate 13, and each group of air inlet nozzles 15 is in a horn shape with a large outer part and a small inner part; it is convenient to accelerate the gas flow rate and increase the air intake. At least two groups of coiled pipes 14 are arranged on one group of air inlet nozzles 15, and each group of coiled pipes 14 is distributed back and forth in a zigzag manner in the space between the sintered soil 12 and the outer cylinder skin 11; the coiled pipes 14 are all made of copper metal material to enhance the heat exchange efficiency; the solid fuel can be placed in the combustion chamber from the feeding port, and the air in the furnace can enter from below the outer furnace shell and enter the lower area of the combustion chamber from the air inlet to be mixed with the fuel for combustion, which is the main combustion process; then, a part of the air below the outer furnace shell can also be transferred to the upper part of the combustion chamber through the air inlet nozzle 15 - coiled pipe 14 - air inlet nozzle 15 and sent into the upper part of the combustion chamber from the air holes 21 as secondary air, that is, "upper wind of the fire". By using the air staging combustion technology, the local high temperature of the flame is reduced, and the unburned fuel in the combustion chamber continues to burn, effectively reducing the emission of nitrogen oxides, effectively improving the combustion efficiency, and the coiled pipes 14 are wound inside it, which can play an effect of enhancing heat preservation.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sleeve-type heating stove inner chamber, characterized in that: The invention comprises a bottom cylinder (1), an inner cylinder (2) and an outer cover (3), wherein the inner cylinder (2) is arranged at the top end of the bottom cylinder (1), and the outer cover (3) is sleeved on the outside of the top end of the inner cylinder (2). The bottom cylinder (1) comprises an outer cylinder skin (11), cover plates (13) fixed to the upper and lower ends of the outer cylinder skin (11), and sintered clay (12) adhered to the inner sides of two groups of cover plates (13), and the middle parts of the two groups of cover plates (13) are provided with air outlet grooves (131), and the bottom ends of the air outlet grooves (131) are fixed with air inlet nozzles (15), and the air inlet nozzles (15) are connected to each other through a coil (14), and the coil (14) is wound between the outer cylinder skin (11) and the sintered clay (12).

2. The inner chamber of a sleeve-type heating stove according to claim 1, characterized in that: The inner cylinder (2) is a hollow structure, and a plurality of groups of air holes (21) are arranged in an array at equal distances on the inner and outer walls thereof.

3. The inner chamber of a sleeve-type heating stove according to claim 1, characterized in that: The inner dimensions of the outer cover (3) are matched with the outer dimensions of the inner cylinder (2).

4. The inner chamber of a sleeve-type heating stove according to claim 1, characterized in that: Two groups of air outlet grooves (131) are symmetrically provided on the cover plate (13), and each group of air inlet nozzles (15) is in the shape of a trumpet with a larger outer side and a smaller inner side.

5. The inner chamber of a sleeve-type heating stove according to claim 4, characterized in that: At least two groups of coils (14) are arranged on a group of the air inlet nozzles (15), and each group of the coils (14) is distributed back and forth in a zigzag manner in the space between the sintered soil (12) and the outer cylinder skin (11).

6. The inner chamber of a sleeve-type heating stove according to claim 1, characterized in that: The coils (14) are all made of copper metal.

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