Rocket furnace

Abstract

The utility model discloses a rocket furnace, and relates to the field of combustion equipment. The rocket furnace comprises a furnace body, the furnace body is provided with a first feeding pipeline, a second feeding pipeline and a combustion cavity, and the first feeding pipeline and the second feeding pipeline are communicated with two side spaces oppositely distributed in the combustion cavity respectively. When the first feeding pipeline and the second feeding pipeline are used for feeding, fuel entering from the first feeding pipeline and the second feeding pipeline is distributed in two opposite side spaces in the combustion cavity and cannot be accumulated on a single side of the combustion cavity, so that the fuel entering the combustion cavity is distributed more uniformly under the action of stress, and the combustion efficiency is improved. In this way, under the condition that the fuel combustion sufficiency is not affected as much as possible, more fuel can be added at a time through the first feeding pipeline and the second feeding pipeline, so that the combustion duration of the rocket furnace after single-time feeding is prolonged, and the purpose of reducing the fuel adding frequency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion equipment, in particular to a rocket stove. Background Art

[0002] The rocket stove is a combustion device with high-efficiency combustion, environmental protection, time-saving and energy-saving. It uses secondary combustion to improve thermal efficiency. The rocket stove generates high-temperature flue gas through the primary combustion of the burner into the secondary combustion chamber, meets the oxygen supply again for combustion, and increases the temperature of the flue gas again, and then enters the tertiary combustion chamber to achieve tertiary combustion, reduce emissions and improve fuel utilization. For the rocket stove, the chimney effect is mainly used. The air in the stove rises or falls along the space with a vertical slope, producing a strong air convection phenomenon, which makes the fire of the stove more fierce.

[0003] The rocket stove on the market includes a stove body, a bracket, a storage container, a grate, and an ash box. It usually burns wood and wood particles. A feed pipe connected to its combustion chamber is provided on one side of the rocket stove. In order to meet the long-term combustion requirements, a sufficient amount of fuel must be added at one time through the single feed pipe. If a sufficient amount of fuel is added to the combustion chamber of the rocket stove from the feed pipe at one time, fuel will accumulate near the connection with the feed pipe in the combustion chamber, which will aggravate the incomplete combustion of the fuel in the combustion chamber and affect the combustion efficiency of the fuel. A single feed pipe may more easily lead to excess or insufficient local fuel, affecting the overall combustion efficiency. In order to alleviate the problem of incomplete combustion caused by fuel accumulation, the amount of fuel added at a time has to be reduced, which will lead to the problem of short combustion time after a single fuel addition and the need to add fuel frequently. Utility Model Content

[0004] The main purpose of the utility model is to provide a rocket stove, aiming to solve the technical problem that the combustion time is short after a single addition of fuel and the fuel needs to be frequently added.

[0005] To achieve the above-mentioned purpose, the utility model proposes a rocket stove, which includes a stove body, and the stove body is provided with a first feed pipe, a second feed pipe and a combustion chamber, and the first feed pipe and the second feed pipe are respectively connected to two side spaces oppositely distributed in the combustion chamber.

[0006] In one embodiment, the first feed pipe has a vertical section and an inclined section, the vertical section and the inclined section are connected to each other, the vertical section is arranged close to the feeding direction of the first feed pipe, and the inclined section is connected to the combustion chamber;

[0007] The second feed pipe has a vertical section and an inclined section, the vertical section and the inclined section are connected to each other, the vertical section is arranged close to the feed direction of the second feed pipe, and the inclined section is connected to the combustion chamber.

[0008] In one embodiment, the furnace body is further provided with a first grid plate and a second grid plate. The first grid plate is arranged at the connection between the inclined section of the first feeding pipeline and the combustion chamber. The first grid plate is provided with grid openings that communicate the inner cavity of the inclined section of the first feeding pipeline with the combustion chamber. The second grid plate is arranged at the connection between the inclined section of the second feeding pipeline and the combustion chamber. The second grid plate is provided with grid openings that communicate the inner cavity of the inclined section of the second feeding pipeline with the combustion chamber.

[0009] In one embodiment, a first ash cleaning port is provided below the first grid plate, and the first ash cleaning port is connected to the combustion chamber; a second ash cleaning port is provided below the second grid plate, and the second ash cleaning port is connected to the combustion chamber.

[0010] In one embodiment, a plurality of cyclone vanes are arranged at intervals along the outer peripheral wall of the combustion chamber, and each cyclone vane is arranged in an inclined shape.

[0011] In one embodiment, the rocket stove further includes a glass tube. The glass tube is detachably connected to the smoke outlet end of the combustion chamber. A fixing ring is sleeved on the outer wall of the glass tube, and the fixing ring is screwed to the outer shell, and the glass tube is limited by the fixing ring.

[0012] In one embodiment, a combustion chamber central body is arranged inside the glass tube. The combustion chamber central body is in a spiral shape. The combustion chamber central body is arranged close to the combustion chamber, and one end of the combustion chamber central body is connected to the fixing ring.

[0013] In one embodiment, the rocket stove further includes an outer shell and a base. The outer shell and the base enclose an installation cavity, and the furnace body is installed in the installation cavity. First anti-tipping members and second anti-tipping members are respectively arranged on both sides of the base. The first anti-tipping member is bolted to the base, and the second anti-tipping member is bolted to the base.

[0014] In one embodiment, a first feeding cover is arranged at one end of the first feeding pipeline facing the feeding direction. The first feeding cover is rotationally connected to the outer shell and covers the first feeding pipeline;

[0015] A second feeding cover is arranged at one end of the second feeding pipeline facing the feeding direction. The second feeding cover is rotationally connected to the outer shell and covers the second feeding pipeline.

[0016] In one embodiment, the rocket stove further includes an ash cleaning assembly, which has an ash collection box and an ash cleaning handle. The ash collection box is arranged on the base, and the base has a limiting groove formed by enclosing multiple screws. The ash collection box is limited in the limiting groove. The ash cleaning handle has a serrated grasping part. An outer wall on one side of the ash collection box and a partition enclose a limiting opening, and the limiting opening is used to limit the grasping part.

[0017] The technical solution of the present utility model is to set a double-feed pipe structure of a first feed pipe and a second feed pipe communicating with the combustion chamber on the rocket stove, and make the connection between the first feed pipe and the combustion chamber and the connection between the second feed pipe and the combustion chamber be distributed oppositely. In this way, when the first feed pipe and the second feed pipe feed materials, the fuels entering from the first feed pipe and the second feed pipe will be distributed in the opposite side spaces in the combustion chamber respectively, rather than accumulating on one side of the combustion chamber, which is beneficial to making the fuels entering the combustion chamber be more evenly distributed under the action of stress. In this way, under the condition of not affecting the fuel combustion sufficiency as much as possible, more fuels can be added at one time through the first feed pipe and the second feed pipe, so as to extend the combustion duration of the rocket stove after a single fuel addition, and achieve the purpose of reducing the number of fuel additions. BRIEF 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 the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the rocket stove provided by the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the furnace body of the rocket stove provided by the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the combustion chamber of the rocket stove provided by the present utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the rocket stove provided by the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 100, Rocket stove; 1, Furnace body; 11, First feeding pipe; 111, First feeding cover; 12, Second feeding pipe; 121, Second feeding cover; 13, Combustion chamber; 131, Cyclone vane; 14, First grid plate; 141, First ash cleaning port; 15, Second grid plate; 151, Second ash cleaning port; 2, Glass tube; 21, Fixed ring; 3, Outer shell; 4, Base; 41, First anti-tipping member; 42, Second anti-tipping member; 5, Ash cleaning assembly; 51, Ash collection box; 52, Ash cleaning handle.

[0025] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present utility model proposes a rocket stove 100.

[0030] Please refer to Figure 1, in an embodiment of the present utility model, the rocket stove 100 includes a stove body 1. The stove body 1 is provided with a first feeding pipe 11, a second feeding pipe 12, and a combustion chamber 13. The first feeding pipe 11 and the second feeding pipe 12 are respectively communicated with two opposite side spaces in the combustion chamber 13.

[0031] In this embodiment, the rocket stove 100 is applied to outdoor camping and home heating scenarios. The stove body 1 is the main part of the rocket stove 100, and the combustion chamber 13 is used for burning fuel. The first feeding pipe 11 and the second feeding pipe 12 are respectively the feeding ports for fuel to enter the combustion chamber 13. When the rocket stove 100 starts to work, first place two 50g alcohol blocks into the first feeding pipe 11 and the second feeding pipe 12 respectively, then place biomass pellets into the first feeding pipe 11 and the second feeding pipe 12 respectively until the entire feeding pipe is filled, and then put the alcohol blocks into the bottom of the combustion chamber 13 and ignite them with a long - handled igniter, so that the rocket stove 100 starts to burn continuously.

[0032] The technical solution of the present utility model is to set a double - feeding pipe structure of a first feeding pipe and a second feeding pipe communicating with the combustion chamber on the rocket stove, and make the connection between the first feeding pipe and the combustion chamber and the connection between the second feeding pipe and the combustion chamber be distributed oppositely. In this way, when the first feeding pipe and the second feeding pipe feed materials, the fuels entering from the first feeding pipe and the second feeding pipe will be distributed in two opposite side spaces in the combustion chamber respectively, rather than piling up on one side of the combustion chamber, which is beneficial to making the fuels entering the combustion chamber be more evenly distributed under the action of stress. In this way, under the condition of not affecting the fuel combustion sufficiency as much as possible, more fuels can be added at one time through the first feeding pipe and the second feeding pipe, so as to extend the combustion duration of the rocket stove after a single feeding, and achieve the purpose of reducing the number of fuel additions.

[0033] In the embodiment of the present utility model, the first feeding pipe 11 has a vertical section and an inclined section, the vertical section and the inclined section are communicated with each other, the vertical section is arranged close to the feeding direction of the first feeding pipe 11, and the inclined section is communicated with the combustion chamber 13; the second feeding pipe 12 has a vertical section and an inclined section, the vertical section and the inclined section are communicated with each other, the vertical section is arranged close to the feeding direction of the second feeding pipe 12, and the inclined section is communicated with the combustion chamber 13.

[0034] In this embodiment, taking the first feeding pipe 11 as an example, the fuel flows from the mouth of the first feeding pipe 11 along the vertical section to the inclined section, and the inclined section is connected to the combustion chamber 13. The second feeding pipe 12 has the same principle as the first feeding pipe 11. Through the sectional design of the first feeding pipe 11 and the second feeding pipe 12, it helps the fuel to flow smoothly from the feeding direction into the combustion chamber 13 and reduces the accumulation and blockage of the fuel during the feeding process.

[0035] In an embodiment of the present utility model, the furnace body 1 is further provided with a first grid plate 14 and a second grid plate 15. The first grid plate 14 is disposed at the connection between the inclined section of the first feed pipe 11 and the combustion chamber 13. The first grid plate 14 is provided with grid openings that communicate the inner cavity of the inclined section of the first feed pipe 11 with the combustion chamber 13. The second grid plate 15 is disposed at the connection between the inclined section of the second feed pipe 12 and the combustion chamber 13. The second grid plate 15 is provided with grid openings that communicate the inner cavity of the inclined section of the second feed pipe 12 with the combustion chamber 13.

[0036] In this embodiment, taking the first grid plate 14 as an example, the grid openings of the first grid plate 14 are used for the ashes from the fuel combustion to fall to the lower first ash cleaning port 141, and are also used to ensure that only completely dry and fine fuel particles enter the combustion chamber 13. The second grid plate 15 has the same principle as the first grid plate 14. By providing the first grid plate 14 with grid openings and the second grid plate 15 with grid openings, not only can the separation of ashes be ensured during the process of the fuel entering the combustion chamber 13, which helps to maintain the combustion efficiency, but also the pollution of the combustion chamber 13 is reduced.

[0037] In an embodiment of the present utility model, a first ash cleaning port 141 is provided below the first grid plate 14, and the first ash cleaning port 141 is connected to the combustion chamber 13; a second ash cleaning port 151 is provided below the second grid plate 15, and the second ash cleaning port 151 is connected to the combustion chamber 13. In this embodiment, taking the first ash cleaning port 141 as an example, the first ash cleaning port 141 is not only used for the ashes of the first grid plate 14 to fall, but also for air supply to support the combustion of the fuel. The second ash cleaning port 151 has the same principle as the first ash cleaning port 141. When it is necessary to clean the ashes, the ashes of the first grid plate 14 and the second grid plate 15 are respectively cleared through the first ash cleaning port 141 and the second ash cleaning port 151; when the rocket stove 100 is working, air can enter the combustion chamber 13 from the first ash cleaning port 141 and the second ash cleaning port 151. This setting method not only facilitates ash cleaning, but also allows the rocket stove 100 to be directly maintained through the ash cleaning ports. At the same time, regularly clearing the ashes through the ash cleaning ports can prevent the accumulation of ashes in the combustion chamber 13 and also helps the fuel to come into full contact with oxygen.

[0038] In an embodiment of the present utility model, a plurality of cyclone vanes 131 are provided at intervals along the outer peripheral wall of the combustion chamber 13, and each cyclone vane 131 is arranged obliquely. In this embodiment, the cyclone vanes 131 are used to increase air flow and form local eddies. When the fuel in the combustion chamber 13 burns, heat is generated, causing the surrounding air to heat up and rise, forming natural convection. The oblique setting of the cyclone vanes 131 can guide the rising hot air to rotate along the surface of the cyclone vanes 131, forming local cyclones. The rotating airflow generated by the cyclone vanes 131 can drive the mixing of the surrounding air and the unburned gas, increasing the oxygen supply and promoting the complete combustion of the fuel. The rotating action of the cyclone vanes 131 helps to transfer heat in all directions of the combustion chamber 13, achieving a more uniform heat distribution, thus making the flame more perfect. The cyclone vanes 131 reduce incomplete combustion and soot generation caused by local oxygen deficiency by improving air flow.

[0039] In an embodiment of the present utility model, the rocket stove 100 further includes a glass tube 2, which is detachably connected to the smoke outlet end of the combustion chamber 13. A fixing ring 21 is sleeved on the outer wall of the glass tube 2, and the fixing ring 21 is screw-connected to the outer shell 3, and the glass tube 2 is limited in the fixing ring 21. In this embodiment, the glass tube 2 is not only used to observe the combustion condition of the rocket stove 100, but also used to discharge the flue gas generated by combustion through the glass tube 2. During ignition, the glass tube 2 can also be tilted. The glass tube 2 is placed above the combustion chamber 13 and fixed by the fixing ring 21. During installation, the glass tube is inserted into the glass tube fixing ring until it reaches the combustion chamber, and the glass tube is gently shaken to make it fit tightly with the combustion chamber and fixed in place. This setting method not only allows the glass tube 2 to be detached, but also helps to increase the ornamental value of the stove during the combustion of the rocket stove 100 and allows the combustion condition of the combustion chamber 13 to be directly observed.

[0040] In an embodiment of the present utility model, a combustion chamber central body is provided inside the glass tube 2. The combustion chamber central body is spiral-shaped and is arranged close to the combustion chamber 13. One end of the combustion chamber central body is connected to the fixing ring 21. In this embodiment, the spiral-shaped combustion chamber central body can increase the residence time of the flue gas in the glass tube 2, helping to improve the heat exchange efficiency. When the spiral-shaped combustion chamber central body is working, the flame rises along the spiral path, forming a beautiful flame effect, and at the same time allowing the user to observe the combustion condition. At the same time, the spiral setting may promote the secondary combustion of the unburned particles in the flue gas and reduce pollutant emissions.

[0041] In an embodiment of the present utility model, the rocket stove 100 further includes a housing 3 and a base 4. The housing 3 and the base 4 enclose an installation cavity, and the stove body 1 is installed in the installation cavity. First anti-tipping members 41 and second anti-tipping members 42 are respectively provided on both sides of the base 4. The first anti-tipping member 41 is bolted to the base 4, and the second anti-tipping member 42 is bolted to the base 4. In this embodiment, the first anti-tipping member 41 and the second anti-tipping member 42 help to improve the stability of the base 4 and avoid the risk of tipping due to external forces. The setting of the housing 3 helps to doubly isolate the heat of the rocket stove 100, making the surface temperature of the rocket stove 100 lower. In this setting mode, the rocket stove can also be used on a 15-degree slope. This setting mode helps to adapt to different ground environments, prevent tipping caused by uneven ground, and also helps to improve the durability of the rocket stove 100.

[0042] In an embodiment of the present utility model, a first feed cover 111 is provided at one end of the first feed pipe 11 facing the feed direction. The first feed cover 111 is rotatably connected to the housing 3 and covers the first feed pipe 11; a second feed cover 121 is provided at one end of the second feed pipe 12 facing the feed direction. The second feed cover 121 is rotatably connected to the housing 3 and covers the second feed pipe 12.

[0043] In this embodiment, in order to achieve a better combustion effect, feed covers are respectively provided on the first feed pipe 11 and the second feed pipe 12. The feed covers are used to protect the feed pipes and maintain the temperature of the combustion chamber 13. This setting mode helps to optimize the combustion process, improve the combustion efficiency, and also helps to prevent dust, moisture or other impurities from invading.

[0044] In an embodiment of the present utility model, the rocket stove 100 further includes an ash cleaning assembly 5. The ash cleaning assembly 5 has an ash collection box 51 and an ash cleaning handle 52. The ash collection box 51 is provided on the base 4. The base 4 has a limiting groove formed by a plurality of screws enclosing. The ash collection box 51 is limited in the limiting groove. The ash cleaning handle 52 has a serrated grasping portion. An outer wall on one side of the ash collection box 51 and a partition enclose a limiting opening, and the limiting opening is used to limit the grasping portion.

[0045] In this embodiment, the ash cleaning assembly 5 is used to collect and store the ashes generated during the combustion process. The ash collection box 51 is used to collect the ashes generated during the combustion process. The ash cleaning handle 52 is not only used to clean the ashes in the ash collection box 51, but also used to clean the ashes at the two ash cleaning openings. The serrated grasping portion can make the ashes be more concentratedly processed and is convenient to be placed in the limiting opening when not in use. This setting mode helps the collection and cleaning and maintenance of the ashes.

[0046] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A rocket stove, characterized in that, The rocket stove includes a stove body (1). The stove body is provided with a first feeding pipe (11), a second feeding pipe (12) and a combustion chamber (13). The first feeding pipe (11) and the second feeding pipe (12) are respectively communicated with two spaces distributed oppositely in the combustion chamber (13).

2. The rocket stove according to claim 1, characterized in that, The first feeding pipe (11) has a vertical section and an inclined section which are communicated with each other. The vertical section is arranged close to the feeding direction of the first feeding pipe (11), and the inclined section is communicated with the combustion chamber (13). The second feeding pipe (12) has a vertical section and an inclined section which are communicated with each other. The vertical section is arranged close to the feeding direction of the second feeding pipe (12), and the inclined section is communicated with the combustion chamber (13).

3. The rocket stove according to claim 2, wherein The stove body (1) is further provided with a first grid plate (14) and a second grid plate (15). The first grid plate (14) is arranged at the communication position between the inclined section of the first feeding pipe (11) and the combustion chamber (13). The first grid plate (14) is provided with grid openings communicating the inner cavity of the inclined section of the first feeding pipe (11) with the combustion chamber (13). The second grid plate (15) is arranged at the communication position between the inclined section of the second feeding pipe (12) and the combustion chamber. The second grid plate (15) is provided with grid openings communicating the inner cavity of the inclined section of the second feeding pipe (12) with the combustion chamber (13).

4. The rocket stove according to claim 3, wherein A first ash cleaning port (141) is arranged below the first grid plate (14), and the first ash cleaning port (141) is connected to the combustion chamber. A second ash cleaning port (151) is arranged below the second grid plate (15), and the second ash cleaning port (151) is connected to the combustion chamber.

5. The rocket stove according to any one of claims 1 to 4, characterized in that, A plurality of cyclone vanes (131) are arranged at intervals along the outer peripheral wall of the combustion chamber (13), and each cyclone vane (131) is arranged in an inclined shape.

6. The rocket stove according to any one of claims 1 to 4, characterized in that, The rocket stove further includes a glass tube (2). The glass tube (2) is detachably connected to the smoke outlet end of the combustion chamber (13). A fixing ring (21) is sleeved on the outer wall of the glass tube (2), and the fixing ring (21) is connected to the outer shell (3) by screws. The glass tube (2) is limited in the fixing ring (21).

7. The rocket stove according to claim 6, characterized in that, A combustion chamber central body is arranged inside the glass tube (2). The combustion chamber central body is in a spiral shape and is arranged close to the combustion chamber. One end of the combustion chamber central body is connected to the fixing ring (21).

8. The rocket stove according to any one of claims 1 to 4, characterized in that, The rocket stove further includes an outer shell (3) and a base (4). The outer shell (3) and the base (4) enclose an installation cavity, and the stove body (1) is installed in the installation cavity. A first anti-tipping member (41) and a second anti-tipping member (42) are respectively arranged on both sides of the base (4). The first anti-tipping member (41) is connected to the base (4) by bolts, and the second anti-tipping member (42) is connected to the base (4) by bolts.

9. The rocket stove according to claim 8, characterized in that, One end of the first feed pipe (11) facing the feed direction is provided with a first feed cover (111). The first feed cover (111) is rotatably connected to the housing (3) and covers the first feed pipe (11). One end of the second feed pipe (12) facing the feed direction is provided with a second feed cover (121). The second feed cover (121) is rotatably connected to the housing (3) and covers the second feed pipe (12).

10. The rocket stove according to claim 8, characterized in that, The rocket stove further includes an ash cleaning assembly (5). The ash cleaning assembly (5) has an ash collection box (51) and an ash cleaning handle (52). The ash collection box (51) is arranged on the base (4). The base (4) has a limiting groove formed by enclosing a plurality of screws. The ash collection box (51) is limited in the limiting groove. The ash cleaning handle (52) has a serrated grasping portion. An outer wall of one side of the ash collection box (51) and a partition enclose a limiting opening for limiting the grasping portion.

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