Uniform air distribution device for a gas producer

Abstract

The utility model relates to coal gas producer technical field, the utility model provides a kind of coal gas producer in-furnace even air distribution device, it includes air inlet box;Air distribution adjustment component, air distribution adjustment component is located at the bottom of air inlet box;Flow control component, flow control component is located between first connecting pipe and second connecting pipe. Through the above technical scheme, the wind channel mouth is generally cone bucket type in prior art, wind force is transported from bottom to top, wind channel cross-sectional area gradually increases, leading to wind force cannot be blown to reaction site evenly and stably, and further leading to the problem that the generation efficiency of coal gas producer reduces, and because the fixed structure of traditional communication pipeline determines that air inlet flow cannot be dynamically regulated, only total air volume can be changed by frequency conversion of air blower, and this adjustment mode can lead to the situation that oxygen excess or steam deficiency alternately appears, finally influence the technical problem that coal gas effective component yield.

Description

Technical Field

[0001] This utility model relates to the field of gasifier technology, specifically to a uniform air distribution device inside a gasifier. Background Technology

[0002] A gasifier is a reactor used to produce coal gas, water gas, and semi-water gas. The furnace body is cylindrical, with an outer shell made of steel plate or brick, lined with refractory bricks, and equipped with feeding equipment, blast ducts, and gas pipelines. Structurally, they can be classified as mechanical gasifiers, stepped gasifiers, rotating furnaces, and two-stage gasifiers. Based on the process, they can be classified as fixed-bed or fluidized-bed gasifiers. The air distribution device in a gasifier is usually located at the bottom of the furnace and is responsible for evenly distributing the gasifying agent, such as a mixture of air and steam, into the furnace.

[0003] For example, the announcement number is CN 214694017 U's patent discloses an environmentally friendly two-stage gasifier. By setting up a support device, when connecting the blower pipe and the gasifier's air inlet box, the operator does not need to hold the blower pipe by hand, improving work efficiency. However, the above device still has some shortcomings in use. In order to adapt to the gasifier, the air inlet box is generally cone-shaped, and the air is delivered from bottom to top. The cross-sectional area of ​​the air duct gradually increases, which makes it impossible for the air to be blown evenly and stably to the reaction site, thus reducing the reaction efficiency of the gasifier. In addition, the common way to connect the blower and the air inlet box is to connect the gas path through a fixed connecting pipe. However, the traditional equal-diameter direct connection design of the connecting pipe has significant limitations: its fixed flow cross-section determines that the air inlet flow cannot be dynamically controlled. Since the pipe has no adjustment function, the total air volume can only be changed by the blower frequency converter. This will lead to alternating situations of excessive oxygen or insufficient steam, ultimately affecting the yield of effective components of gas (such as CO and H2), which essentially limits the fine control of reaction conditions. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a uniform air distribution device inside a gasifier, which solves the problems in the prior art where the air duct inlet is generally cone-shaped, the air is transported from bottom to top, and the cross-sectional area of ​​the air duct gradually increases, resulting in the air force not being able to be blown evenly and stably to the reaction area, thus reducing the generation efficiency of the gasifier. It also solves the technical problem that the fixed structure of the traditional connecting pipe determines that the air intake flow cannot be dynamically controlled, and the total air volume can only be changed by frequency conversion of the blower. This method of changing the air volume will lead to alternating situations of excessive oxygen or insufficient steam, which will ultimately affect the yield of effective components of the gas.

[0005] According to one aspect, at least one embodiment of the present invention provides a uniform air distribution device for a gasifier, comprising: an air inlet box, wherein a first connecting pipe and a second connecting pipe are sequentially arranged at the bottom of the air inlet box; A wind distribution adjustment assembly is located at the bottom of the air inlet box and at the top of the first connecting pipe; A flow control component is located at the bottom of a first connecting pipe and at the top of a second connecting pipe.

[0006] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: the air distribution adjustment component includes an adjustment cavity located at the bottom of the air inlet box, the top of the adjustment cavity is fixedly connected to the air inlet box, a plug-in seat is fixedly connected to the side of the adjustment cavity, a plurality of plug holes are provided on the side of the plug-in seat, and the bottom of the adjustment cavity is fixedly connected to the top of the first connecting pipe.

[0007] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: multiple sets of rotating shafts are provided inside the regulating cavity, one end of the rotating shaft is rotatably connected to the inside of the regulating cavity, the other end of the rotating shaft extends to the outside of the regulating cavity and is fixedly connected to a limiting member, and an air distribution plate is fixedly connected to the outside of the rotating shaft.

[0008] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: a movable cavity is provided inside the limiting member, a rod is inserted into the movable cavity, one end of the rod is inserted into the insertion hole, and the other end of the rod passes through the limiting member and is fixedly connected to a pull ring.

[0009] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: a spring is provided in the movable cavity, one end of the spring is fixedly connected to the outside of the insertion rod, the other end of the spring is fixedly connected to the inside of the movable cavity, and a damper is provided in the spring.

[0010] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: the flow control component includes an adjusting member, the top and bottom of the adjusting member are fixedly connected to a first connecting pipe and a second connecting pipe respectively, a driving groove is provided on the outside of the adjusting member, a first ventilation hole is provided through the top and bottom of the adjusting member respectively, a rotating groove is provided inside the first ventilation hole, a rotating plate is rotatably connected in the rotating groove, a second ventilation hole is provided through the top of the rotating plate, and a gear part is provided outside the second ventilation hole.

[0011] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: the diameters of the first ventilation hole and the second ventilation hole are equal.

[0012] For example, in at least one embodiment of the present invention, a uniform air distribution device for a gas generator is provided, which further includes: an external mounting base fixedly connected to the second connecting pipe, a motor fixedly connected to the top of the mounting base, and a drive gear fixedly connected to the power shaft of the motor through a bearing, wherein the drive gear and the gear part are meshed together.

[0013] The beneficial effects of the embodiments of this utility model are as follows: (1) In this utility model, by setting up an air distribution adjustment component, the air distribution direction can be adjusted. The device sets an adjustment cavity at the bottom of the air inlet box, and sets up multiple sets of air distribution plates in the adjustment cavity, so that they can rotate in the air duct, thereby guiding the air force to various parts in the air duct, so that it can be blown evenly to the reaction position in the gas generator. The design of the plug rod and multiple sets of plug holes makes it convenient for the operator to adjust the angle of the air distribution plate, which is used to control the flow direction of the air force, realize the efficient mixing of gasifying agent and fuel, improve reaction efficiency, and reduce energy consumption.

[0014] (2) In this utility model, by setting a flow control component, the air supply flow rate is controlled, and the air supply volume can be precisely controlled according to the situation inside the gasifier. At the same time, the PLC is linked to realize the dynamic adjustment process of the air supply volume, and the air / steam ratio can be adjusted in real time to keep the molar ratio of oxygen to carbon (O / C) stable in the range of 0.2-0.3, ensuring that the reaction process can proceed stably and improving the reaction efficiency of the gasifier. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a top view of the entire utility model; Figure 2 This is a schematic diagram of the interior of the air inlet box of this utility model; Figure 3 This is a schematic diagram of the air distribution adjustment component of this utility model; Figure 4 This utility model Figure 3 A magnified view of a portion of the image; Figure 5 This is a schematic diagram of the fixing structure of this utility model. Figure 6 This is a schematic diagram of the entire utility model from another perspective; Figure 7 This is a schematic diagram of the flow control component of this utility model; In the diagram: 1. Air inlet box; 2. Air distribution adjustment assembly; 3. First connecting pipe; 4. Second connecting pipe; 5. Flow control assembly; 201. Adjustment chamber; 202. Plug-in socket; 203. Rotating shaft; 204. Air distribution plate; 205. Insertion hole; 206. Limiting component; 207. Insert rod; 208. Pull ring; 209. Spring; 501. Adjusting component; 502. First ventilation hole; 503. Rotating plate; 504. Second ventilation hole; 505. Gear section; 506. Mounting base; 507. Motor; 508. Drive gear; 509. Drive groove. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-5 As shown, it illustrates a uniform air distribution device inside a gasifier furnace according to an embodiment of the present invention, comprising: Air inlet box 1, with a first connecting pipe 3 and a second connecting pipe 4 sequentially arranged at the bottom of the air inlet box 1; Air distribution adjustment assembly 2 is located at the bottom of air inlet box 1 and at the top of first connecting pipe 3; The air distribution adjustment assembly 2 includes an adjustment cavity 201 located at the bottom of the air inlet box 1. The top of the adjustment cavity 201 is fixedly connected to the air inlet box 1. A plug-in seat 202 is fixedly connected to the side of the adjustment cavity 201. Several sets of plug holes 205 are opened on the side of the plug-in seat 202. The bottom of the adjustment cavity 201 is fixedly connected to the top of the first connecting pipe 3. The regulating cavity 201 is provided with multiple sets of rotating shafts 203. One end of the rotating shaft 203 is rotatably connected to the inside of the regulating cavity 201, and the other end of the rotating shaft 203 extends to the outside of the regulating cavity 201 and is fixedly connected to a limiting member 206. An air distribution plate 204 is fixedly connected to the outside of the rotating shaft 203. The limiting member 206 has an internal movable cavity, and a rod 207 is inserted into the movable cavity. One end of the rod 207 is inserted into the insertion hole 205, and the other end of the rod 207 passes through the limiting member 206 and is fixedly connected to a pull ring 208. A spring 209 is installed inside the movable cavity. One end of the spring 209 is fixedly connected to the outside of the insertion rod 207, and the other end of the spring 209 is fixedly connected to the inside of the movable cavity. A damper is installed inside the spring 209.

[0024] In this embodiment, during operation, the operator pulls the pull ring 208 until the insertion rod 207 separates from the insertion seat 202. Then, the angle of the insertion hole 205 is adjusted by rotating the shaft 203. The remaining air distribution plates 204 are adjusted in the same way to adjust the air direction, thereby achieving a uniform air distribution effect. The device sets an adjustment cavity 201 at the bottom of the air inlet box 1, and sets multiple sets of air distribution plates 204 in the adjustment cavity 201, which rotate in the air duct, thereby guiding the air force to various parts of the air inlet box 1, so that it can be blown evenly to the reaction position in the gasifier. Moreover, the insertion fixing structure set on the outside of the rotating shaft 203 works with the insertion seat 202 to facilitate the operator to fix the adjusted air distribution plates 204, ensuring the stability of the air distribution direction. The insertion holes 205 are set to correspond to multiple adjustment directions, and the adjustment range of the deflection angle is 0-90 degrees.

[0025] like Figures 2-7 As shown, it illustrates the flow control component 5 in another embodiment of the present invention. The flow control component 5 is located at the bottom of the first connecting pipe 3 and at the top of the second connecting pipe 4. The flow control assembly 5 includes an adjusting member 501. The top and bottom of the adjusting member 501 are fixedly connected to the first connecting pipe 3 and the second connecting pipe 4, respectively. A drive groove 509 is provided on the outside of the adjusting member 501. A first ventilation hole 502 is provided through the top and bottom of the adjusting member 501, respectively. A rotating groove is provided inside the first ventilation hole 502. A rotating plate 503 is rotatably connected inside the rotating groove. A second ventilation hole 504 is provided through the top of the rotating plate 503. A gear part 505 is provided on the outside of the second ventilation hole 504. The diameters of the first ventilation hole 502 and the second ventilation hole 504 are equal; The second connecting pipe 4 is externally fixedly connected to a mounting base 506. A motor 507 is fixedly connected to the top of the mounting base 506. The power shaft of the motor 507 is fixedly connected to a drive gear 508 via a bearing. The drive gear 508 and the gear part 505 are meshed together.

[0026] In this embodiment, the bottom of the second connecting pipe 4 is connected to the blower. When the air volume needs to be adjusted, the motor 507 drives the drive gear 508 to rotate. When the drive gear 508 rotates, it drives the rotating plate 503 to rotate through the gear part 505. The air volume is controlled by the overlap of the first ventilation hole 502 and the second ventilation hole 504. When the first ventilation hole 502 and the second ventilation hole 504 are completely overlapped, the air volume is 100%. As the rotating plate 503 rotates, the area of ​​the air inlet formed by the overlap of the first ventilation hole 502 and the second ventilation hole 504 gradually decreases, and the air volume also gradually decreases. The motor 507 is controlled by the PLC to realize the dynamic adjustment process of the air volume.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A uniform air distribution device inside a gasifier furnace, characterized in that, include: An air inlet box (1) is provided with a first connecting pipe (3) and a second connecting pipe (4) in sequence at the bottom of the air inlet box (1). Air distribution adjustment assembly (2), the air distribution adjustment assembly (2) is located at the bottom of the air inlet box (1), the air distribution adjustment assembly (2) is located at the top of the first connecting pipe (3); The flow control component (5) is located at the bottom of the first connecting pipe (3) and at the top of the second connecting pipe (4).

2. The uniform air distribution device inside a gasifier according to claim 1, characterized in that, The air distribution adjustment assembly (2) includes an adjustment cavity (201) located at the bottom of the air inlet box (1). The top of the adjustment cavity (201) is fixedly connected to the air inlet box (1). A plug-in seat (202) is fixedly connected to the side of the adjustment cavity (201). Several sets of plug holes (205) are opened on the side of the plug-in seat (202). The bottom of the adjustment cavity (201) is fixedly connected to the top of the first connecting pipe (3).

3. The uniform air distribution device inside a gasifier according to claim 2, characterized in that, The regulating cavity (201) is provided with multiple sets of rotating shafts (203). One end of the rotating shaft (203) is rotatably connected to the inside of the regulating cavity (201), and the other end of the rotating shaft (203) extends to the outside of the regulating cavity (201) and is fixedly connected to a limiting member (206). A wind distribution plate (204) is fixedly connected to the outside of the rotating shaft (203).

4. The uniform air distribution device inside a gasifier according to claim 3, characterized in that, The limiting member (206) has an internal movable cavity, and a plug rod (207) is inserted into the movable cavity. One end of the plug rod (207) is inserted into the plug hole (205), and the other end of the plug rod (207) passes through the limiting member (206) and is fixedly connected to a pull ring (208).

5. The uniform air distribution device inside a gasifier according to claim 4, characterized in that, A spring (209) is provided inside the movable cavity. One end of the spring (209) is fixedly connected to the outside of the insertion rod (207), and the other end of the spring (209) is fixedly connected to the inside of the movable cavity. A damper is provided inside the spring (209).

6. The uniform air distribution device inside a gasifier according to claim 1, characterized in that, The flow control component (5) includes an adjusting member (501). The top and bottom of the adjusting member (501) are fixedly connected to the first connecting pipe (3) and the second connecting pipe (4), respectively. A drive groove (509) is provided on the outside of the adjusting member (501). A first ventilation hole (502) is provided through the top and bottom of the adjusting member (501). A rotating groove is provided inside the first ventilation hole (502). A rotating plate (503) is rotatably connected inside the rotating groove. A second ventilation hole (504) is provided through the top of the rotating plate (503). A gear part (505) is provided outside the second ventilation hole (504).

7. A uniform air distribution device inside a gasifier according to claim 6, characterized in that, The diameters of the first ventilation hole (502) and the second ventilation hole (504) are equal.

8. The uniform air distribution device inside a gasifier according to claim 1, characterized in that, The second connecting pipe (4) is fixedly connected to a mounting base (506), and a motor (507) is fixedly connected to the top of the mounting base (506). The power shaft of the motor (507) is fixedly connected to a drive gear (508) through a bearing. The drive gear (508) and the gear part (505) are meshed together.

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