CN115406098A

CN115406098A - Novel combustor with material slope and interlayer water jacket

Info

Publication number: CN115406098A
Application number: CN202211152249.5A
Authority: CN
Inventors: 周盛富; 姜仁善
Original assignee: Qingdao Re Lide Thermal Equipment Co ltd
Current assignee: Qingdao Re Lide Thermal Equipment Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-11-29

Abstract

The invention relates to the technical field of boilers, in particular to a novel combustor with a material slope and an interlayer water jacket. The furnace comprises an inner furnace body, an outer furnace body, a feeding mechanism and an air supply mechanism, wherein the outer furnace body is sleeved on the outer peripheral side of the inner furnace body, the outer furnace body and the inner furnace body are arranged at intervals, and the outer furnace body and the inner furnace body enclose a sealed interlayer water jacket; the lower half part of the inner furnace body is provided with a grate which divides the inner space of the inner furnace body into a combustion chamber and a slag chamber, and a plurality of supporting water pipes with two ends respectively communicated with the interlayer water jacket are arranged below the grate; the inside wall of interior furnace body is provided with to the inside bellied material slope of combustion chamber, the material slope sets up under the feed mechanism pan feeding mouth. The invention solves the problem that the existing stove is easy to accumulate in the middle of the grate when using biomass particles, and also solves the problem that the grate is easy to be broiled and damaged at high temperature.

Description

Novel combustor with material slope and interlayer water jacket

Technical Field

The invention relates to the technical field of boilers, in particular to a novel combustor with a material slope and an interlayer water jacket.

Background

At present, the development and utilization of biomass energy are more and more emphasized in China, the supporting force is increased in county of the nation and local governments at all levels, and opportunities are brought to the development of biomass briquette fuels, processing equipment of the biomass briquette fuels, biomass stoves and boiler industries. Furnace products capable of burning biomass continuously emerge, meet the requirements of different consumer groups, and have important significance in improving and enhancing the indoor air quality of farmers, promoting the physical health of people and promoting new rural construction.

On the large premise, a plurality of biomass stoves appear in the market, but research shows that the existing biomass stoves in the market are still not perfect and have various defects.

For example, chinese patent "a water heating furnace special for biomass particles" (publication No. CN214619683U, published as 2021-11-05) discloses a water heating furnace, which comprises a furnace body, wherein a feeding mechanism is arranged on one side of the furnace body, and a control mechanism is arranged on the side surface of the feeding mechanism; an air blower is arranged below the feeding mechanism; the control mechanism is electrically connected with the blower; the top of the furnace body is provided with a cooking furnace mouth, a heat release chamber is arranged below the cooking furnace mouth, and a combustion chamber is arranged below the heat release chamber; a water jacket is arranged outside the combustion chamber; an air inlet channel is arranged at the lower part of the combustion chamber below the water jacket, and the air inlet end of the air inlet channel is communicated with the air outlet of the blower; a grate is inserted below the combustion chamber; the grate is positioned in the middle of the air outlet end of the air inlet channel.

Although the product improves the traditional stove, the problems that the traditional stove cannot meet the requirement of oxygen consumption, the combustion is insufficient, the burnout rate is not ideal and the like are solved. However, the product still has the defect that the biomass fuel is granular compressed material, and when the biomass granules enter the furnace body from the feeding mechanism, the biomass granules can be accumulated in the middle of the furnace body, so that insufficient combustion is caused, and the waste of resources is caused. In addition, because the product works, biomass particles are directly accumulated on the grate, and the grate is easy to be broke by high temperature and damaged after long-time use.

Disclosure of Invention

The invention provides a novel burner with a material slope and an interlayer water jacket, which aims to solve the problem that biomass particles are easy to accumulate in the middle of a grate when an existing stove uses the biomass particles and also aims to solve the problem that the grate is easy to be broiled and damaged at high temperature.

In order to realize the purpose, the technical scheme of the invention is as follows:

the invention provides a novel burner with a material slope and an interlayer water jacket, which comprises an inner furnace body, an outer furnace body, a feeding mechanism and an air supply mechanism, wherein the outer furnace body is sleeved on the outer peripheral side of the inner furnace body, the outer furnace body and the inner furnace body are arranged at intervals, and the outer furnace body and the inner furnace body form a sealed interlayer water jacket in a surrounding manner.

The lower half part of the inner furnace body is provided with a grate which divides the inner space of the inner furnace body into a combustion chamber and a slag chamber, and a plurality of supporting water pipes with two ends respectively communicated with the interlayer water jacket are arranged below the grate. The inside wall of interior furnace body is provided with to the inside bellied material slope of combustion chamber, the material slope sets up under the feed mechanism pan feeding mouth, the material slope is in that one side under the feed mechanism is for meeting the charge level, it is the inclined plane to meet the charge level.

The feeding mechanism is arranged on one side above the combustion chamber, and the air supply mechanism is arranged on one side of the slag chamber.

In one embodiment, a water outlet communicated with the interlayer water jacket is arranged at the top of the outer furnace body, and a water return opening communicated with the interlayer water jacket is arranged at the lower half part of the rear side of the outer furnace body.

In one embodiment, a plurality of furnace ash falling holes are uniformly formed in the furnace grate, and the furnace ash falling holes are long round holes, rectangular holes, round holes, triangular holes or polygonal holes.

In one embodiment, the grate comprises left and right portions, which are separable.

In one embodiment, a fire outlet communicating the inside and the outside is arranged on the side, far away from the feeding mechanism, above the combustion chamber.

In one embodiment, the cross-sectional shape of the material slope may be triangular or trapezoidal.

In one embodiment, a material box is arranged at the upper part of the feeding mechanism, a hinge cover plate is arranged at the top of the material box, and an auger mechanism is arranged at the bottom of the material box and is driven by a motor; the outlet end of the auger mechanism is inserted into the combustion chamber.

In one embodiment, the air supply mechanism comprises an air port which is arranged on the side wall of the slag chamber and is communicated with the inside and the outside, and the outer end of the air port is connected with a fan.

The invention has the following beneficial effects:

according to the invention, a material slope is arranged on the side wall of the inner furnace body and right below the auger discharge port, an air port is arranged below the grate, biomass particles enter the furnace body from the auger discharge port and fall on the material slope under the action of gravity, and the biomass particles bounce due to the inclined plane of the material slope; meanwhile, the fan blows air to the interior of the furnace body through the air opening, the air blows biomass particles from the lower side, and the biomass particles are uniformly laid on the upper surface of the grate under the action of multiple strands of factors, so that all the biomass particles can be fully combusted.

In addition, because the supporting water pipes communicated with the interlayer water jacket are arranged below the grate, heat of the grate can be taken away by heat-conducting media in the supporting water pipes when fuel is combusted, the temperature of the grate is maintained in a reasonable range, and the grate is prevented from being damaged due to overheating.

In addition, the inner wall of the combustion chamber is not easy to coke in the using process of the invention.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a cross-sectional view of the present invention; hatching in the figure represents the heat transfer medium filled in the water jacket.

Fig. 2 is a front view of the present invention.

Fig. 3 is a rear view of the present invention.

In the figure, 1, an outer furnace body; 2. an inner furnace body; 3. an interlayer water jacket; 4. a fire outlet; 5. a water outlet; 6. a water return port; 7. a material slope; 8. a grate; 9. supporting the water pipe; 10. a tuyere; 11. a fan; 12. an ignition bar; 13. a hopper; 14. a motor; 15. a packing auger mechanism; 16. a combustion chamber; 17. a slag chamber; 18. a furnace door.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 3, the invention provides a novel burner with a material slope and an interlayer water jacket, which comprises an inner furnace body 2, an outer furnace body 1, a feeding mechanism and an air supply mechanism, wherein the outer furnace body 1 is sleeved on the outer peripheral side of the inner furnace body 2, the outer furnace body 1 and the inner furnace body 2 are arranged at intervals, a sealed space is defined by the outer furnace body 1 and the inner furnace body 2, and the sealed space is named as the interlayer water jacket 3.

Specifically, the outer furnace body 1 is sleeved on the outer peripheral side of the inner furnace body 2, the outer furnace body 1 and the inner furnace body 2 enclose an interlayer water jacket 3, a heat-conducting medium is filled in the interlayer water jacket 3, fuel is combusted in the inner furnace body 2, and the heat-conducting medium in the interlayer water jacket 3 absorbs heat and brings the heat to a required place.

In an embodiment of the present invention, the heat transfer medium is a liquid such as water.

In the embodiment of the invention, the outer furnace body 1 and the inner furnace body 2 can be connected by welding or other methods, so as to form a sealed space.

The lower half part of the inner furnace body 2 is provided with a grate 8, the grate 8 divides the inner space of the inner furnace body 2 into an upper part and a lower part, the space of the upper part is named as a combustion chamber 16, the space of the lower part is named as a slag chamber 17, and the space of the combustion chamber 16 is larger than the space of the slag chamber 17. A plurality of supporting water pipes 9 are arranged below the grate 8, two ends of each supporting water pipe 9 are respectively communicated with the interlayer water jacket 3, and the supporting water pipes 9 are tightly attached to the lower surface of the grate 8, so that on one hand, heat of the grate 8 is absorbed by heat-conducting media flowing in the supporting water pipes 9, and the grate 8 is prevented from being damaged due to overheating; on the other hand, the grate 8 is also provided with a support to prevent the middle part of the grate 8 from sagging and deforming.

In the embodiment of the invention, a water outlet 5 communicated with the interlayer water jacket 3 is arranged at the top of the outer furnace body 1, a water return opening 6 communicated with the interlayer water jacket 3 is arranged at the lower half part of the rear side of the outer furnace body 1, a high-temperature heat-conducting medium flows into a place needing heat from the water outlet 5, and the heat-reduced heat-conducting medium flows back to the interlayer water jacket 3 from the water return opening 6, so that a cycle is completed.

In the embodiment of the invention, a plurality of furnace ash falling holes are uniformly formed in the furnace grate 8, the furnace ash falling holes are long round holes, rectangular holes, round holes, triangular holes, polygonal holes or other special-shaped holes, and the size of the furnace ash falling holes is proper, so that biomass particles cannot fall into the furnace slag chamber 17 before completely burning. The grate 8 comprises a left and a right part which can be separated so that, when a side is damaged, it can be replaced by a below-described oven door 18.

The feeding mechanism is arranged on one side above the combustion chamber 16, the other side above the combustion chamber 16 is provided with a fire outlet 4 communicating the inside and the outside, and biomass particles or other granular fuels can enter the combustion chamber 16 through the feeding mechanism and finally fall on the bottom of the combustion chamber 16. After the fuel is burned in the combustion chamber 16, the generated high temperature flame is supplied to the boiler through the fire outlet 4. The inside wall of interior furnace body 2 is provided with to the inside bellied material slope 7 of combustion chamber 16, material slope 7 sets up under the feed mechanism pan feeding mouth, material slope 7 is located that one side under the feed mechanism is for meeting the charge level, it is the inclined plane to meet the charge level. After entering the combustion chamber 16 through the feeding mechanism, the granular fuel falls on the material slope 7 under the action of gravity, and the granular fuel is bounced up because the material facing surface is an inclined surface.

In the embodiment of the present invention, the cross-sectional shape of the material slope 7 may be a triangle, a trapezoid or other shapes, as long as the side facing the feeding mechanism is an inclined surface.

In an embodiment of the present invention, the inclination angle of the material receiving surface is: 35-60 degrees, and the preferred inclination angle of the material-facing surface is 45 degrees.

In the embodiment of the invention, a feed box is arranged at the upper part of the feeding mechanism, a hinge cover plate is arranged at the top of the feed box, an auger mechanism 15 is arranged at the bottom of the feed box, and the auger mechanism 15 is driven by a motor 14; the outlet end of the auger mechanism 15 is inserted into the combustion chamber 16. When the device works, granular fuel is poured into the material box, the motor 14 is started, and the granular fuel is pushed into the combustion chamber 16 under the conveying of the auger mechanism 15.

An ignition rod 12 is arranged right below the material slope 7, and the ignition rod 12 is used for igniting fuel in a combustion chamber 16.

The air supply mechanism is arranged on the side wall of the slag chamber 17 and comprises an air port 10 which is arranged on the side wall of the slag chamber 17 and is communicated with the inside and the outside, the air port 10 is arranged under the material slope 7, the outer end of the air port 10 is connected with a fan 11, the fan 11 blows air into the combustion chamber 16 through the air port 10, on one hand, the blown air provides oxygen for combustion, on the other hand, the blown air also provides an upward force for the granular fuel, so that the falling points of the granular fuel are more dispersed, and the granular fuel is more uniformly paved on the upper surface of the grate 8.

The novel combustion machine is characterized in that a furnace door 18 is arranged on the front side of the novel combustion machine, the furnace door 18 penetrates through the inner furnace body 2, the outer furnace body 1 and the interlayer water jacket 3, and the furnace door 18 stretches across the slag chamber 17 and the combustion chamber 16. The operator can remove ash falling into the slag chamber 16 after combustion through the door 18, and can also remove residues remaining on the grate 8 after combustion through the door 18. Furthermore, the operator can also add fuel directly into the combustion chamber 16 via the oven door 18.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A novel burner with a material slope and an interlayer water jacket is characterized by comprising an inner furnace body (2), an outer furnace body (1), a feeding mechanism and an air supply mechanism, wherein the outer furnace body (1) is sleeved on the outer peripheral side of the inner furnace body (2), the outer furnace body (1) and the inner furnace body (2) are arranged at intervals, and the outer furnace body (1) and the inner furnace body (2) enclose a sealed interlayer water jacket (3);

a grate (8) is arranged at the lower half part of the inner furnace body (2), the inner space of the inner furnace body (2) is divided into a combustion chamber (16) and a slag chamber (17) by the grate (8), and a plurality of supporting water pipes (9) with two ends respectively communicated with the interlayer water jacket (3) are arranged below the grate (8); a material slope (7) protruding towards the interior of the combustion chamber (16) is arranged on the inner side wall of the inner furnace body (2), the material slope (7) is arranged right below a feeding port of the feeding mechanism, the surface of the material slope (7) right below the feeding mechanism is a material facing surface, and the material facing surface is an inclined surface;

the feeding mechanism is arranged on one side above the combustion chamber (16), and the air supply mechanism is arranged on one side of the slag chamber (17).

2. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: the top of the outer furnace body (1) is provided with a water outlet (5) communicated with the interlayer water jacket (3), and the lower half part of the rear side of the outer furnace body (1) is provided with a water return port (6) communicated with the interlayer water jacket (3).

3. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: the grate (8) is uniformly provided with a plurality of ash falling holes, and the ash falling holes are long round holes, rectangular holes, round holes, triangular holes or polygonal holes.

4. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 3, characterized in that: the grate (8) comprises a left part and a right part which can be separated.

5. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: and a fire outlet (4) for communicating the inside and the outside is arranged on the side, far away from the feeding mechanism, above the combustion chamber (16).

6. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: the cross section of the material slope (7) can be triangular or trapezoidal.

7. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: a material box is arranged at the upper part of the feeding mechanism, a hinge cover plate is arranged at the top of the material box, an auger mechanism (15) is arranged at the bottom of the material box, and the auger mechanism (15) is driven by a motor (14); the outlet end of the auger mechanism (15) is inserted into the combustion chamber (16).

8. The novel combustion engine with the material slope and the interlayer water jacket as claimed in claim 1, characterized in that: the air supply mechanism comprises an air port (10) which is arranged on the side wall of the slag chamber (17) and is communicated with the inside and the outside, and the outer end of the air port (10) is connected with a fan (11).