Detachable furnace pipe

Abstract

A detachable furnace pipe comprises a furnace pipe shell and a furnace pipe core assembly, and the furnace pipe core assembly is arranged in the furnace pipe shell in a sealed and clearance mode. The furnace pipe core assembly comprises an assembly shell and an assembly inner core, the upper portion of the assembly inner core is a combustion-supporting device component, the lower portion of the assembly inner core is a refractory material component, the upper end of the combustion-supporting device component and the furnace pipe protecting cover are connected into a whole in a sealed mode, and the outer diameter of the combustion-supporting device component is smaller than that of the refractory material component. A cavity is formed among the periphery of the combustion-supporting device component, the component shell and the furnace pipe protecting cover; after the assembly shell hermetically wraps the periphery of the assembly inner core, the upper end of the furnace pipe core assembly is hermetically connected with the furnace pipe shell through a first fire-resistant sealing layer and a furnace pipe protecting cover in sequence; an air inlet device is arranged on the outer wall of the furnace pipe shell, and the air inlet device is communicated with the gap and the cavity between the furnace pipe shell and the furnace pipe core assembly; and a feeding hole is formed in the lower part of the furnace pipe shell and the furnace pipe core assembly. The boiler furnace is convenient to replace by a user in the later period, and the service life of the boiler furnace is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rural household cooking equipment, in particular to a detachable stove. Background Art

[0002] In most areas of northern my country, daily cooking equipment and winter heating equipment are still mainly stoves that burn firewood, coal, biomass and other fuels. Usually, the structure of these stoves is that the furnace and the furnace body are designed as one, and the furnace is generally made of refractory materials with low strength. It is easy to cause damage when working under high temperature for a long time and constantly colliding when adding materials. Once the furnace is damaged, it is either difficult to repair or scrapped as a whole, resulting in increased cost of use. Utility Model Content

[0003] The utility model provides a detachable furnace core, which is convenient for replacement and reduces the use cost.

[0004] The technical solution adopted by the utility model is:

[0005] A detachable furnace, mainly comprising a furnace shell and a furnace core assembly, the furnace core assembly is sealed and a gap is set in the furnace shell; the furnace core assembly comprises an assembly shell and an assembly inner core, the upper part of the assembly inner core is a combustion aid component, and the lower part is a refractory material component, the lower end of the combustion aid component is pre-buried in the refractory material component to make the two become one, the upper end of the combustion aid component is sealed and connected to the furnace cover as a whole, and the outer diameter of the combustion aid component is smaller than the outer diameter of the refractory material component, so that there is a cavity between the outer periphery of the combustion aid component and the assembly shell and the furnace cover; the inner cavity of the assembly inner core is a combustion chamber ; After the component shell seals and wraps around the periphery of the component inner core, the upper end of the furnace core assembly is sealed and connected in sequence through the first refractory sealing layer, the furnace cover and the furnace shell; an air inlet device is arranged on the outer wall of the furnace shell, and the outlet of the air inlet device is connected to the gap and cavity between the furnace shell and the furnace core assembly, and the inlet of the air inlet device is connected to the atmospheric environment; an air inlet is arranged on the upper part of the combustion aid component, and the air inlet is connected to the air inlet device and the combustion chamber, and a feed port is opened at the lower part of the furnace shell and the furnace core assembly, and the lower end of the furnace shell is sealed and installed on the inner bottom surface of the furnace body of the stove.

[0006] Further:

[0007] A stove nest is detachably mounted above the furnace cover via a second fire-resistant sealing layer.

[0008] The distance d between the lower end surface of the feed port and the outer lower bottom surface of the refractory material component is 50 mm.

[0009] Protective plates are installed on both sides of the feed inlet.

[0010] A reinforcing rib is arranged in the refractory material component at the upper part of the feed port.

[0011] The feed inlet on the furnace shell is sealed and connected to the furnace body.

[0012] The detachable furnace core provided by the utility model is convenient for users to replace it at a later time, thereby achieving the purpose of reducing the use and maintenance costs and prolonging the service life of the furnace core. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cutaway structure of the utility model;

[0014] Figure 2 It is a three-dimensional appearance schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] The utility model and its effects are further described below in conjunction with the accompanying drawings.

[0016] Reference Figure 1 , Figure 2 A detachable furnace, mainly comprising a furnace shell 1 and a furnace core assembly, the furnace shell 1 is a truncated cone structure with a larger upper portion and a smaller lower portion; the furnace core assembly is sealed and a gap is arranged in the furnace shell 1; the furnace core assembly comprises an assembly shell 13 and an assembly inner core, the upper portion of the assembly inner core is a combustion aid component 2, and the lower portion is a refractory material component 12, the lower end of the combustion aid component 2 is pre-buried in the refractory material component 12 to make the two become one, the upper end of the combustion aid component 2 is sealed and connected to the furnace cover 3 as a whole, and the outer diameter of the combustion aid component 2 is smaller than the outer diameter of the refractory material component 12, so that a cavity 14 is formed between the outer periphery of the combustion aid component 2 and the assembly shell 13 and the furnace cover 3; the inner cavity of the furnace core is a combustion chamber; the assembly shell 13 After sealing and wrapping the periphery of the inner core of the assembly, the upper end of the furnace core assembly is sealed and connected in sequence through the first refractory sealing layer 11, the furnace cover 3 and the furnace shell 1; the outer periphery of the furnace cover 3 is overlapped on the truncated table surface extending outward from the upper part of the furnace shell 1 through the first refractory sealing layer 11; an air inlet device 4 is arranged on the outer wall of the furnace shell 1, and the outlet of the air inlet device 4 is connected with the gap and cavity 14 between the furnace shell 1 and the furnace core 2, and the inlet of the air inlet device 4 is connected with the atmospheric environment; an air inlet 5 is arranged on the upper part of the combustion aid component 2, and the air inlet 5 is connected with the air inlet device 4 and the combustion chamber, and a feed port 6 is opened at the lower part of the furnace shell 1 and the furnace core assembly, and the lower end of the furnace shell 1 is sealed and installed on the inner bottom surface of the furnace body of the furnace.

[0017] The stove body mentioned above is a stove body structure of various forms, including oven-type stove bodies. The inner bottom surface of the stove body is provided with a live grate. In the utility model, the lower end of the furnace shell 1 is fixed to the inner bottom surface of the stove body by full welding (full welding can increase the sealing performance, make the sealing of the entire furnace more reliable, and make the secondary combustion effect of the furnace better). After the furnace core assembly and the furnace shell 1 are fitted in a gap, the lower end of the furnace core is pressed tightly against the inner bottom surface of the stove body and the gap between the furnace core assembly and the furnace shell 1 is sealed from below. The combustion chamber of the furnace core assembly is aligned with the live grate on the inner bottom surface of the stove body, so that the ash can fall into the ash box at the lower part of the furnace body. When replacing the furnace core, after removing the stove nest, the furnace core assembly can be directly pulled out.

[0018] In the utility model, an independent air inlet system is arranged outside the furnace shell. In addition to directly providing the furnace core assembly with oxygen required for secondary combustion, the cold air in the air inlet device circulates in the gap between the furnace core assembly and the furnace shell 1 to cool the outer wall of the furnace core assembly, thereby improving the service life of the furnace.

[0019] A stove 8 is detachably mounted on the furnace cover 3 through a second fire-resistant sealing layer 7. The stove 8 is directly stacked on the fire-resistant sealing layer 7 and connected to the furnace cover 3 with bolts. When the stove is burned out, the user can replace it with a new stove by removing the connecting bolts, avoiding the situation of replacing the entire furnace after the stove is burned out, thereby achieving the purpose of reducing the use and maintenance cost.

[0020] The distance between the lower end surface of the feed port 6 and the outer lower bottom surface of the refractory component 12 is 50 mm. This prevents the refractory material from being damaged, increases the storage capacity of combustibles on the upper part of the grate, makes the combustion more complete, and improves the utilization rate of the fuel.

[0021] Protective plates 9 are installed on both sides of the feed port 6 to prevent the refractory material from falling off due to collision during material addition, thereby further increasing the service life of the furnace.

[0022] A reinforcing rib 10 is provided in the refractory component 12 at the upper part of the feed port 6 to prevent the refractory material from breaking or collapsing at high temperatures and to increase the service life of the furnace.

[0023] The feed port on the furnace shell 1 is fully welded to the furnace body to increase the sealing performance, make the sealing of the entire furnace more reliable, and make the secondary combustion effect of the furnace better.

Claims

1. A detachable furnace, characterized in that: The invention mainly comprises a furnace shell (1) and a furnace core assembly, the furnace core assembly is sealed and a gap is arranged in the furnace shell (1); the furnace core assembly comprises an assembly shell (13) and an assembly inner core, the upper part of the assembly inner core is a combustion aid component (2), and the lower part is a refractory material component (12), the lower end of the combustion aid component (2) is pre-buried in the refractory material component (12) so that the two are integrated, the upper end of the combustion aid component (2) is sealed and connected to the furnace cover (3) as a whole, and the outer diameter of the combustion aid component (2) is smaller than the outer diameter of the refractory material component (12), so that a cavity (14) is formed between the outer periphery of the combustion aid component (2) and the assembly shell (13) and the furnace cover (3); the inner cavity of the assembly inner core is a combustion chamber; the outer shell of the assembly After the shell (13) seals and wraps around the outer periphery of the inner core of the assembly, the upper end of the furnace core assembly is sealed and connected in sequence through the first refractory sealing layer (11), the furnace cover (3) and the furnace shell (1); an air inlet device (4) is provided on the outer wall of the furnace shell (1); the outlet of the air inlet device (4) is connected to the gap and cavity (14) between the furnace shell (1) and the furnace core assembly; the inlet of the air inlet device (4) is connected to the atmospheric environment; an air inlet (5) is provided on the upper part of the combustion aid component (2); the air inlet (5) is connected to the air inlet device (4) and the combustion chamber; a feed inlet (6) is provided at the lower part of the furnace shell (1) and the furnace core assembly; the lower end of the furnace shell (1) is sealed and mounted on the inner bottom surface of the furnace body of the furnace.

2. A detachable furnace according to claim 1, characterized in that: A stove cavity (8) is detachably mounted above the furnace cover (3) via a second refractory sealing layer (7).

3. A detachable furnace according to claim 1, characterized in that: The distance d between the lower end surface of the feed port (6) and the outer lower bottom surface of the refractory material component (12) is 50 mm.

4. A detachable furnace according to claim 1, characterized in that: Protective plates (9) are installed on both sides of the feed inlet (6).

5. The detachable furnace according to claim 1, characterized in that: A reinforcing rib (10) is provided in the refractory material component (12) at the upper portion of the feed port (6).

6. A detachable furnace according to any one of claims 1 to 5, characterized in that: The feed inlet on the furnace shell (1) is sealed and connected to the furnace body.

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