Biomass boiler purging device

Abstract

The utility model discloses a biomass boiler purging device, which belongs to the technical field of biomass boilers and is characterized by comprising a boiler body, a purging mechanism is arranged on the front side of an inner cavity of the boiler body, and an air supply component matched with the purging mechanism is arranged on the front side of the top of the boiler body. The blowing mechanism comprises a blowing flow dividing pipe, the blowing flow dividing pipe is located on the front side of an inner cavity of the boiler body, the rear side of the blowing flow dividing pipe communicates with a straight air outlet pipe, the two sides of the rear side of the blowing flow dividing pipe communicate with inclined air outlet pipes correspondingly, and the front side of the blowing flow dividing pipe communicates with a connecting pipe. And the front side of the connecting pipe penetrates to the outer side of the boiler body and is communicated with a rotating joint, so that the problems that the blowing wind direction of an existing biomass boiler blowing device is generally fixed, blowing work can only be performed in a specific range in the boiler, the blowing range is limited, a large-range structural area is difficult to cover, and the blowing efficiency is low are solved. Therefore, the purging effect is not ideal.

Description

Technical Field

[0001] This utility model relates to the field of biomass boiler technology, and in particular to a biomass boiler purging device. Background Technology

[0002] A biomass boiler is a thermal energy device that uses biomass energy as fuel. It converts chemical energy into thermal energy by burning biomass fuel to produce steam, hot water, or provide direct heating. It is a key piece of equipment for achieving efficient utilization of biomass energy and features environmental protection, renewability, and cost-effectiveness. It is widely used in heating, power generation, and industrial production.

[0003] Due to the complexity and special characteristics of biomass fuel, many problems have arisen in its actual development. For example, when a large amount of straw is mixed into biomass fuel, ash will continuously accumulate on the boiler heating surface (buried tube). Since the heating surface is located in the lower part of the furnace, it is difficult to fundamentally solve the ash accumulation problem, which has a great impact on the safety, stability and reliability of biomass power plants.

[0004] The existing patent (publication number: CN209213908U) provides a biomass boiler, relating to the boiler field; it includes a furnace and several buried pipes; the buried pipes are disposed at the bottom of the furnace; it also includes a primary air duct for providing primary air to the biomass boiler; a purging air duct for purging the buried pipes is provided in the furnace; the purging air duct is connected to the primary air duct; the purging air duct is a branch of the primary air duct. The biomass boiler provided by this utility model solves the problem of ash accumulation in the buried pipes in the prior art by using a method of continuously purging the area above the buried pipes with a purging air duct.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the purging direction of existing biomass boiler purging devices is usually fixed, which can only purge a specific area inside the boiler. The purging range is limited and it is difficult to cover a large structural area, resulting in an unsatisfactory purging effect.

[0006] Therefore, a biomass boiler purging device is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a biomass boiler purging device that can solve the problem that the purging direction of existing biomass boiler purging devices is usually fixed, which can only purify a specific area inside the boiler. The purging range is limited and it is difficult to cover a large area of ​​the structure, resulting in an unsatisfactory purging effect.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a biomass boiler purging device, comprising a boiler body, a purging mechanism provided on the front side of the inner cavity of the boiler body, and an air supply component used in conjunction with the purging mechanism provided on the front side of the top of the boiler body;

[0009] The purging mechanism includes a purging diversion pipe located at the front of the boiler body cavity. A straight air outlet pipe is connected to the rear side of the purging diversion pipe, and oblique air outlet pipes are connected to both sides of the rear side of the purging diversion pipe. A connecting pipe is connected to the front side of the purging diversion pipe, and the front side of the connecting pipe extends to the outside of the boiler body and is connected to a rotating joint. A drive assembly that works with the connecting pipe is provided on the left side of the rotating joint.

[0010] Preferably, the air supply assembly includes a fan, the air outlet of the fan is connected to an air collecting hood, the front side of the air collecting hood is connected to a flow valve, the front side of the flow valve is connected to an air supply pipe, and the other end of the air supply pipe is connected to the front side of the rotary joint.

[0011] Preferably, the bottom of the fan is fixedly connected to a fixing base, and the bottom of the fixing base is fixedly connected to the front side of the top of the boiler body.

[0012] Preferably, a reinforcing plate is fixedly connected to the rear side of the air duct, and the side of the reinforcing plate closest to the boiler body is fixedly connected to the boiler body.

[0013] Preferably, the drive assembly includes a drive motor, the output shaft of which is fixedly connected to a transmission gear, and the right side of the transmission gear is meshed with a driven gear, which is sleeved on the surface of the connecting pipe, and the inner wall of the driven gear is fixedly connected to the surface of the connecting pipe.

[0014] Preferably, a fixed bracket is fixedly connected to the bottom of the drive motor, and the fixed bracket is fixedly connected to the boiler body on the side closest to the boiler body.

[0015] Preferably, the purge diversion pipe, straight outlet pipe, oblique outlet pipe and connecting pipe are all made of high-strength heat-resistant material, and the side of the connecting pipe near the inner wall of the boiler body is rotatably connected to the inner wall of the boiler body through a bearing.

[0016] Preferably, a controller is provided on the front left side of the boiler body for use with the purging mechanism and the air supply assembly. A fixing support is fixedly connected to the bottom of the controller, and the fixing support is fixedly connected to the boiler body on the side closest to the boiler body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, through the setting of the purging mechanism, can perform purging work on the inside of the boiler body, and can adjust the purging direction, so as to simultaneously cover the boiler body wall, left and right water-cooled walls and the central convection tube bundle area for purging work, thereby effectively improving the purging effect.

[0019] 2. By setting up the air supply component, this application can provide a stable purging air source to the purging mechanism and can adjust the output air volume, thereby adjusting the purging air intensity according to the actual situation. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the biomass boiler purging device of this utility model;

[0021] Figure 2 This is a structural diagram of the purging mechanism and air supply assembly in this utility model;

[0022] Figure 3 This is a structural diagram of the purging mechanism in this utility model;

[0023] Figure 4 This is a structural diagram of the air supply component in this utility model;

[0024] Figure 5 This is a structural diagram of the drive component in this utility model.

[0025] In the diagram, 1. Boiler body; 2. Purge mechanism; 201. Purge diversion pipe; 202. Straight air outlet pipe; 203. Angled air outlet pipe; 204. Connecting pipe; 205. Rotary joint; 206. Drive assembly; 206a. Drive motor; 206b. Transmission gear; 206c. Driven gear; 206d. Fixed bracket; 3. Air supply assembly; 301. Fan; 302. Air collection hood; 303. Flow valve; 304. Air supply pipe; 305. Fixed base; 306. Reinforcing plate; 4. Controller; 5. Fixed support bar. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A biomass boiler purging device includes a boiler body 1, a purging mechanism 2 is provided on the front side of the inner cavity of the boiler body 1, and an air supply component 3 is provided on the front side of the top of the boiler body 1 to cooperate with the purging mechanism 2.

[0029] The purging mechanism 2 includes a purging diversion pipe 201, which is located on the front side of the inner cavity of the boiler body 1. A straight air outlet pipe 202 is connected to the rear side of the purging diversion pipe 201. An oblique air outlet pipe 203 is connected to both sides of the rear side of the purging diversion pipe 201. A connecting pipe 204 is connected to the front side of the purging diversion pipe 201. The front side of the connecting pipe 204 extends to the outside of the boiler body 1 and is connected to a rotating joint 205. A drive assembly 206 that works with the connecting pipe 204 is provided on the left side of the rotating joint 205.

[0030] In this embodiment: by setting up a boiler body 1, a purging mechanism 2, and an air supply assembly 3, during use, the purging mechanism 2 can be used to purge the interior of the boiler body 1, and the purging direction can be adjusted, so that the furnace wall, left and right water-cooled walls and the central convection tube bundle area of ​​the boiler body 1 can be purged simultaneously, thereby effectively improving the purging effect. The air supply assembly 3 can provide a stable purging air source to the purging mechanism 2, and the output air volume can be adjusted, so that the purging air intensity can be adjusted according to the actual situation.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the air supply assembly 3 includes a fan 301, the air outlet of the fan 301 is connected to an air collecting hood 302, the front side of the air collecting hood 302 is connected to a flow valve 303, the front side of the flow valve 303 is connected to an air supply pipe 304, and the other end of the air supply pipe 304 is connected to the front side of the rotary joint 205.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a fixing seat 305 is fixedly connected to the bottom of the fan 301, and the bottom of the fixing seat 305 is fixedly connected to the front side of the top of the boiler body 1.

[0033] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a reinforcing plate 306 is fixedly connected to the rear side of the air duct 304, and the side of the reinforcing plate 306 closest to the boiler body 1 is fixedly connected to the boiler body 1.

[0034] In this embodiment, by setting up a fan 301, an air collecting hood 302, a flow valve 303, an air supply pipe 304, a fixed base 305, and a reinforcing plate 306, in use, by starting the fan 301, the fan 301 draws in air, which is collected by the air collecting hood 302 and then enters the flow valve 303. The airflow enters the air supply pipe 304 through the flow valve 303, and is then delivered to the rotary joint 205 through the air supply pipe 304. Then, the airflow is guided into the connecting pipe 204 without leakage through the rotary joint 205, thereby providing a stable purging air source for the purging mechanism 2. The output air volume can be adjusted by the flow valve 303, and the purging air intensity can be adjusted according to the actual situation. The fixed base 305 can fix the position of the fan 301, and the reinforcing plate 306 can reinforce the air supply pipe 304, thereby improving the stability of the air supply pipe 304.

[0035] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the drive assembly 206 includes a drive motor 206a, the output shaft of the drive motor 206a is fixedly connected to a transmission gear 206b, the right side of the transmission gear 206b is meshed with a driven gear 206c, the driven gear 206c is sleeved on the surface of the connecting tube 204, and the inner wall of the driven gear 206c is fixedly connected to the surface of the connecting tube 204.

[0036] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a fixed bracket 206d is fixedly connected to the bottom of the drive motor 206a, and the fixed bracket 206d is fixedly connected to the boiler body 1 on the side near the boiler body 1.

[0037] In this embodiment: by setting up a drive motor 206a, a transmission gear 206b, a driven gear 206c, and a fixed bracket 206d, in use, by starting the drive motor 206a, the output shaft of the drive motor 206a drives the transmission gear 206b to rotate, and the transmission gear 206b drives the meshing driven gear 206c to rotate. Through the rotation of the driven gear 206c, the connecting pipe 204 can be driven to rotate through the rotary joint 205. The fixed bracket 206d can support and fix the drive motor 206a.

[0038] Specifically, such as Figure 1 As shown, the purge diversion pipe 201, the straight air outlet pipe 202, the oblique air outlet pipe 203 and the connecting pipe 204 are all made of high-strength heat-resistant material. The side of the connecting pipe 204 closest to the inner wall of the boiler body 1 is rotatably connected to the inner wall of the boiler body 1 through a bearing.

[0039] Specifically, such as Figure 1 As shown, a controller 4 is provided on the front left side of the boiler body 1, which is used in conjunction with the purging mechanism 2 and the air supply assembly 3. A fixing support 5 is fixedly connected to the bottom of the controller 4, and the side of the fixing support 5 close to the boiler body 1 is fixedly connected to the boiler body 1.

[0040] In this embodiment: by setting the purge diversion pipe 201, straight air outlet pipe 202, oblique air outlet pipe 203 and connecting pipe 204 to be made of high-strength heat-resistant materials, the service life of the purge diversion pipe 201, straight air outlet pipe 202, oblique air outlet pipe 203 and connecting pipe 204 can be improved. The side of the connecting pipe 204 closest to the inner wall of the boiler body 1 is rotatably connected to the inner wall of the boiler body 1 through a bearing. In order to facilitate the rotation of the connecting pipe 204, a controller 4 is set to control the purge mechanism 2 and the air supply assembly 3 to work. A fixed support 5 is set to support and fix the controller 4.

[0041] Working principle: When purging the boiler body 1, the blower 301 can be started by the controller 4, causing the blower 301 to draw in air, which is then collected by the air collector 302 and enters the flow valve 303. The airflow then enters the air delivery pipe 304 through the flow valve 303, and is then delivered to the rotary joint 205 through the air delivery pipe 304. The rotary joint 205 then guides the airflow into the connecting pipe 204 without leakage, and then into the purging diversion pipe 201 through the connecting pipe 204. After being diverted by the purging diversion pipe 201, the airflow is blown out through the straight outlet pipe 202 and the oblique outlet pipe 203, thus purging the interior of the boiler body 1. The output air volume can be adjusted by the flow valve 303, and the purging wind intensity can be adjusted according to the actual situation. Simultaneously, the controller 4 can start the drive motor 206a, causing the output shaft of the drive motor 206a to drive the transmission gear 206b to rotate. The transmission gear 206b will drive the meshing driven gear 206c to rotate. Through the rotation of the driven gear 206c, the connecting pipe 204 can be driven to rotate through the rotating joint 205. The connecting pipe 204 will drive the purging diversion pipe 201 to rotate. The purging diversion pipe 201 will drive the straight outlet air pipe 202 and the oblique outlet air pipe 203 to rotate, thereby adjusting the purging direction of the straight outlet air pipe 202 and the oblique outlet air pipe 203. This allows for simultaneous purging of the boiler body 1's furnace wall, left and right water-cooled walls, and the central convection tube bundle area, effectively improving the purging effect.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A biomass boiler purging device comprising a boiler body (1), characterized in that: A purging mechanism (2) is provided on the front side of the inner cavity of the boiler body (1), and an air supply assembly (3) is provided on the front side of the top of the boiler body (1) to cooperate with the purging mechanism (2); The purging mechanism (2) includes a purging diversion pipe (201), which is located on the front side of the inner cavity of the boiler body (1). A straight air outlet pipe (202) is connected to the rear side of the purging diversion pipe (201). An oblique air outlet pipe (203) is connected to both sides of the rear side of the purging diversion pipe (201). A connecting pipe (204) is connected to the front side of the purging diversion pipe (201). The front side of the connecting pipe (204) extends to the outside of the boiler body (1) and is connected to a rotating joint (205). A drive assembly (206) that works with the connecting pipe (204) is provided on the left side of the rotating joint (205).

2. A biomass boiler purging device according to claim 1, characterized in that: The air supply assembly (3) includes a fan (301), the air outlet of the fan (301) is connected to an air collecting hood (302), the front side of the air collecting hood (302) is connected to a flow valve (303), the front side of the flow valve (303) is connected to an air supply pipe (304), and the other end of the air supply pipe (304) is connected to the front side of a rotary joint (205).

3. A biomass boiler purging device according to claim 2, characterised in that: The bottom of the fan (301) is fixedly connected to a fixing seat (305), and the bottom of the fixing seat (305) is fixedly connected to the front side of the top of the boiler body (1).

4. A biomass boiler purging device according to claim 2, wherein: A reinforcing plate (306) is fixedly connected to the rear side of the air duct (304), and the side of the reinforcing plate (306) close to the boiler body (1) is fixedly connected to the boiler body (1).

5. A biomass boiler purging device according to claim 1, characterized in that: The drive assembly (206) includes a drive motor (206a), the output shaft of which is fixedly connected to a transmission gear (206b), and a driven gear (206c) meshing with the right side of the transmission gear (206b). The driven gear (206c) is sleeved on the surface of the connecting tube (204), and the inner wall of the driven gear (206c) is fixedly connected to the surface of the connecting tube (204).

6. A biomass boiler purging device according to claim 5, wherein: The bottom of the drive motor (206a) is fixedly connected to a fixed bracket (206d), and the fixed bracket (206d) is fixedly connected to the boiler body (1) on the side close to the boiler body (1).

7. A biomass boiler purging device according to claim 1, characterized in that: The purge diversion pipe (201), straight air outlet pipe (202), oblique air outlet pipe (203) and connecting pipe (204) are all made of high-strength heat-resistant material. The side of the surface of the connecting pipe (204) close to the inner wall of the boiler body (1) is rotatably connected to the inner wall of the boiler body (1) through a bearing.

8. A biomass boiler purging apparatus according to claim 1, wherein: A controller (4) is provided on the front left side of the boiler body (1) for use with the purging mechanism (2) and the air supply assembly (3). A fixed support (5) is fixedly connected to the bottom of the controller (4). The fixed support (5) is fixedly connected to the boiler body (1) on the side close to the boiler body (1).

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