Biomass furnace wall structure

Abstract

The utility model relates to the technical field of biomass furnaces, and discloses a biomass furnace wall structure which comprises a first furnace wall and a second furnace wall, the first furnace wall and the second furnace wall are sequentially distributed on a furnace body from outside to inside, and a furnace wall separation cavity is formed between the first furnace wall and the second furnace wall; the furnace further comprises an air outlet pipe and an air inlet pipe, the air outlet pipe and the air inlet pipe are installed on the first furnace wall and the second furnace wall respectively, and the air outlet pipe and the air inlet pipe are both communicated with the furnace wall partition cavity; a sealing plate is mounted in the furnace wall separation cavity; and one ends of the gas outlet pipe and the gas inlet pipe in the furnace wall separation cavity are respectively positioned on two sides of the sealing plate. Biomass gas produced in the furnace body enters the furnace wall separation cavity through the gas inlet pipe, the biomass gas surrounds the furnace wall separation cavity by a circle and then is discharged through the gas outlet pipe, and the biomass gas is heated and subjected to heat preservation through the temperature in the furnace body, so that the temperature of the biomass gas is increased, and the energy consumption is reduced. And tar liquefaction caused by rapid temperature reduction after biomass gas is discharged is avoided, and the combustion efficiency of the biomass gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass furnaces, in particular to a biomass furnace wall structure. Background Art

[0002] Biomass gasifier is a device that converts biomass materials into combustible gas. Its working principle is to decompose biomass materials into combustible gas under high temperature and oxygen deficiency. The straw gas produced by biomass gasifier is a green new energy with strong vitality. Since the raw materials of plant gas are crop straw, forest waste, edible fungus residue, cattle and sheep manure and all combustible materials, it is an inexhaustible renewable resource.

[0003] At present, the furnace bodies of biomass gasifiers are mostly of ordinary structural design. The biomass gas generated in the furnace cavity will be directly discharged to the outside of the furnace body through the exhaust port. Since the furnace body lacks insulation and heating for the biomass gas, the temperature of the biomass gas drops rapidly after discharge, which may cause tar liquefaction and increase the tar output rate, affecting the combustion efficiency of the biomass gas, which is not conducive to the production efficiency of the enterprise. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a biomass furnace wall structure.

[0005] The utility model provides a biomass furnace wall structure, comprising: a first furnace wall and a second furnace wall, the first furnace wall and the second furnace wall are sequentially distributed on the furnace body from the outside to the inside, and a furnace wall partition cavity is formed between the first furnace wall and the second furnace wall;

[0006] It also includes an air outlet pipe and an air inlet pipe, which are respectively installed on the first furnace wall and the second furnace wall, and the air outlet pipe and the air inlet pipe are both connected to the furnace wall compartment;

[0007] A sealing plate is installed in the furnace wall compartment, and one end of the air outlet pipe and the air inlet pipe located in the furnace wall compartment is respectively located on both sides of the sealing plate.

[0008] As a further optimized solution of the utility model, a partition is installed in the furnace wall cavity, and the number of the partitions is multiple, and the multiple partitions are staggered to form an S-shaped channel for the discharge of biomass gas.

[0009] As a further optimized solution of the utility model, a plurality of partitions are circumferentially distributed in the furnace wall cavity.

[0010] As a further optimized solution of the utility model, the width of the partition is consistent with the width of the furnace wall cavity, one end of the partition is fixedly connected to one of the top and bottom of the furnace body, and there is a gap between the other end of the partition and the other of the top and bottom of the furnace body to form an opening for biomass gas circulation.

[0011] As a further optimized solution of the utility model, two adjacent partitions are designed to be centrally symmetrical.

[0012] As a further optimized solution of the utility model, the distance between two adjacent partitions is 3-6 cm.

[0013] As a further optimized solution of the utility model, the first furnace wall and the second furnace wall are concentric circles with each other.

[0014] As a further optimized solution of the utility model, the furnace wall cavity is an annular cavity.

[0015] The biomass furnace wall structure proposed in the utility model has the following beneficial effects:

[0016] (i) The utility model forms a furnace wall partition cavity by arranging a first furnace wall and a second furnace wall on the furnace body, and uses a sealing plate to separate the gas outlet pipe from the gas inlet pipe, so that the biomass gas produced in the furnace body enters the furnace wall partition cavity through the gas inlet pipe, and the biomass gas is discharged through the gas outlet pipe after circling in the furnace wall partition cavity for one cycle, and the biomass gas is heated and insulated by using the temperature in the furnace body to increase the temperature of the biomass gas, so as to avoid the rapid temperature drop after the biomass gas is discharged, which leads to tar liquefaction, and is conducive to improving the combustion efficiency of the biomass gas;

[0017] (ii) By installing partitions in the furnace wall compartment, and using multiple partitions to be arranged in a staggered manner in the furnace wall compartment to form an S-shaped channel for the discharge of biomass gas, the transmission path of the biomass gas in the furnace wall compartment can be extended, thereby improving the heating efficiency of the furnace body for the biomass gas, and avoiding the phenomenon of a rapid temperature drop of the biomass gas after discharge. In addition, the circumferential uniform arrangement of multiple partitions can also play a role in reinforcing the furnace body and preventing tempering.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front structure of the furnace body of the utility model;

[0020] Figure 2 It is a schematic diagram of the top cross-sectional structure of the furnace body of the utility model;

[0021] Figure 3 It is a schematic diagram of the expansion of the furnace wall of the utility model.

[0022] Description of the drawings: 1. furnace body; 11. first furnace wall; 12. second furnace wall; 2. air outlet pipe; 3. air inlet pipe; 4. partition plate; 5. sealing plate. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] See also Figure 1-Figure 3 A biomass furnace wall structure comprises: a first furnace wall 11 and a second furnace wall 12, the first furnace wall 11 and the second furnace wall 12 are sequentially distributed on a furnace body 1 from outside to inside, and a furnace wall compartment is formed between the first furnace wall 11 and the second furnace wall 12;

[0029] It also includes an air outlet pipe 2 and an air inlet pipe 3, which are respectively installed on the first furnace wall 11 and the second furnace wall 12, and the air outlet pipe 2 and the air inlet pipe 3 are both connected to the furnace wall compartment;

[0030] A sealing plate 5 is installed in the furnace wall compartment, and one end of the air outlet pipe 2 and the air inlet pipe 3 located in the furnace wall compartment is located on both sides of the sealing plate 5 respectively.

[0031] The upper and lower ends of the sealing plate 5 are fixedly connected to the top and bottom of the furnace body 1, respectively, and the two sides of the sealing plate 5 are fixedly connected to the first furnace wall 11 and the second furnace wall 12, respectively, and the connection parts are tightly fitted to form a seal;

[0032] Specifically, a partition plate 4 is installed in the furnace wall compartment, and the number of the partition plates 4 is multiple. The multiple partition plates 4 are staggered to form an S-shaped channel for the discharge of biomass gas, which can extend the transmission path of the biomass gas in the furnace wall compartment, thereby facilitating the furnace body 1 to better heat the biomass gas;

[0033] Furthermore, a plurality of partitions 4 are circumferentially distributed in the furnace wall compartment, which can improve the strength of the furnace wall compartment, thereby improving the overall strength of the furnace body 1;

[0034] Furthermore, the width of the partition 4 is consistent with the width of the furnace wall compartment, one end of the partition 4 is fixedly connected to one of the top and the bottom of the furnace body 1, and a gap is provided between the other end of the partition 4 and the other of the top and the bottom of the furnace body 1 to form an opening for the biomass gas to flow;

[0035] Furthermore, two adjacent partitions 4 are designed to be centrally symmetrical, so that two adjacent openings are arranged one above the other to form an S-shaped channel;

[0036] Furthermore, the distance between two adjacent partitions 4 is 3-6 cm;

[0037] Furthermore, the first furnace wall 11 and the second furnace wall 12 are concentric circles, so that the furnace wall cavity is an annular cavity, so that the biomass gas is transmitted around in the furnace wall cavity;

[0038] In another embodiment, the length of the partition 4 is consistent with the height of the furnace wall cavity, one side of the partition 4 is connected to the outer wall of the first furnace wall 11, and there is a gap between the other side of the partition 4 and the inner wall of the second furnace wall 12 to form an opening for the biomass gas to flow, and the two adjacent partitions 4 are still centrally symmetrical and can also form an S-shaped channel.

[0039] In summary, the biomass furnace wall structure proposed in the utility model is to form a furnace wall partition cavity by arranging the first furnace wall 11 and the second furnace wall 12 on the furnace body 1, and to separate the outlet pipe 2 from the inlet pipe 3 by using the sealing plate 5, so that the biomass gas produced in the furnace body 1 enters the furnace wall partition cavity through the inlet pipe 3, and the biomass gas is discharged through the outlet pipe 2 after circulating in the furnace wall partition cavity for one circle, and the biomass gas is heated and insulated by using the temperature in the furnace body 1, so as to increase the temperature of the biomass gas, and to avoid the temperature of the biomass gas dropping too fast after being discharged, which may cause Tar liquefaction is beneficial to improving the combustion efficiency of biomass gas; by installing partitions 4 in the furnace wall compartment, and using multiple partitions 4 to be staggered in the furnace wall compartment to form an S-shaped channel for biomass gas discharge, the transmission path of biomass gas in the furnace wall compartment can be extended, thereby improving the heating efficiency of the furnace body 1 for biomass gas, avoiding the phenomenon of rapid temperature drop of biomass gas after discharge, and the circumferential uniform arrangement of multiple partitions 4 can also play a role in reinforcing the furnace body 1, and at the same time can also play a role in preventing backfire.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biomass furnace wall structure, characterized in that: include: A first furnace wall (11) and a second furnace wall (12), the first furnace wall (11) and the second furnace wall (12) are sequentially distributed on the furnace body (1) from the outside to the inside, and a furnace wall compartment is formed between the first furnace wall (11) and the second furnace wall (12); It also includes an air outlet pipe (2) and an air inlet pipe (3), wherein the air outlet pipe (2) and the air inlet pipe (3) are respectively installed on the first furnace wall (11) and the second furnace wall (12), and the air outlet pipe (2) and the air inlet pipe (3) are both connected to the furnace wall compartment; A sealing plate (5) is installed in the furnace wall compartment, and one end of the air outlet pipe (2) and the air inlet pipe (3) located in the furnace wall compartment is located on both sides of the sealing plate (5) respectively.

2. A biomass furnace wall structure according to claim 1, characterized in that: A partition plate (4) is installed in the furnace wall compartment, and the number of the partition plates (4) is multiple, and the multiple partition plates (4) are staggeredly distributed to form an S-shaped channel for the discharge of biomass gas.

3. A biomass furnace wall structure according to claim 2, characterized in that: A plurality of partition plates (4) are circumferentially distributed in the furnace wall compartment.

4. A biomass furnace wall structure according to claim 2, characterized in that: The width of the partition (4) is consistent with the width of the furnace wall cavity, one end of the partition (4) is fixedly connected to one of the top and bottom of the furnace body (1), and a gap is provided between the other end of the partition (4) and the other of the top and bottom of the furnace body (1) to form an opening for the biomass gas to flow.

5. A biomass furnace wall structure according to claim 4, characterized in that: Two adjacent partitions (4) are designed to be centrally symmetrical.

6. A biomass furnace wall structure according to claim 4, characterized in that: The distance between two adjacent partitions (4) is 3-6 cm.

7. A biomass furnace wall structure according to any one of claims 1 to 6, characterized in that: The first furnace wall (11) and the second furnace wall (12) are concentric circles with each other.

8. The biomass furnace wall structure according to claim 7, characterized in that: The furnace wall cavity is an annular cavity.

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