A boiler combustion air venting device

Abstract

The utility model relates to a boiler combustion technical field discloses a kind of boiler combustion ventilation device, including frame, the right side of the frame is provided with filter mechanism, the inner bottom wall left side of the frame is fixedly connected with boiler equipment, the left side of the boiler equipment is fixedly installed with flue shell, the right side top of the flue shell is communicated with connection valve, the outer wall of the connection valve is provided with sealing mechanism;The filter mechanism includes mounting bracket, the left side of the mounting bracket is fixedly connected in the right side of the frame, the inner wall left side rear end of the mounting bracket is fixedly connected with frequency conversion fan, the top of the frequency conversion fan is communicated with extraction pipe.In the utility model, through filter plate and adsorption carbon column, multiple filtration of extraction air is completed, then the dust impurities contained in airflow is reduced, so as to achieve the effect of pressure to promote flue gas flow, so that the situation of reducing dust dirt to block the inside of device is improved, and ventilation efficiency is improved.

Description

Technical Field

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

[0002] Boiler combustion is the core process by which a boiler converts the chemical energy of fuel into thermal energy through combustion. The heat is transferred to the working fluid through the furnace heating surface, thereby heating the working fluid to produce steam or hot water. Its efficiency and stability directly affect the boiler's energy consumption, environmental performance, and operational safety. At the same time, ventilation is required during combustion to deliver air into the boiler and exhaust flue gas.

[0003] Existing ventilation systems frequently experience problems such as excessively high bearing temperatures and excessive vibration during operation. The main reasons are equipment aging, improper maintenance, and component quality issues. These problems affect the normal operation of the ventilation system, lead to unstable boiler combustion conditions, and reduce the service life of the system. The current solutions are to replace aging and damaged components in a timely manner, improve the overall quality of the equipment, and identify and address potential problems early. However, after prolonged boiler operation, combustion dust contained in the extracted airflow accumulates in the ventilation system, causing blockages in the ducts or filters, which in turn affects the ventilation effect and reduces ventilation efficiency. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a boiler combustion ventilation device, which aims to improve the problem in the prior art where, after a long period of boiler operation, combustion dust contained in the extracted airflow accumulates in the ventilation device, causing blockage of the air duct or filter, thereby affecting the ventilation effect and reducing ventilation efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a boiler combustion ventilation device, comprising a frame, a filter mechanism provided on the right side of the frame, a boiler device fixedly connected to the left side of the inner bottom wall of the frame, a flue shell fixedly installed on the left side of the boiler device, a connecting valve connected to the top right side of the flue shell, and a sealing mechanism provided on the outer wall of the connecting valve. The filtration mechanism includes a mounting frame. The left side of the mounting frame is fixedly connected to the right side of the frame. A variable frequency fan is fixedly connected to the rear end of the left side of the inner wall of the mounting frame. An extraction pipe is connected to the top of the variable frequency fan. A filter box is connected to the front end of the extraction pipe. Filter plates are fixedly installed on both the front and rear sides of the inner wall of the filter box. Multiple adsorption carbon columns are slidably installed on the top of the filter box. A preheater is connected to the front top of the variable frequency fan. The left end of the preheater is connected to the right side of the boiler equipment. A locking component is provided on the rear side of the boiler equipment. An opening component is provided on the front side of the frame.

[0006] As a further description of the above technical solution: The sealing mechanism includes a fixing ring, the inner wall of which is fixedly connected to the outer wall of the connecting valve. Multiple locking plates are rotatably connected to the right side of the fixing ring. A locking groove is provided on one side of each locking plate. A sealing sleeve is provided on the right side of the connecting valve. Multiple locking grooves are provided on the outer wall of the sealing sleeve. The adjacent sides of the multiple locking plates are respectively engaged with the corresponding locking grooves. A connecting component is provided on the left side of the sealing sleeve.

[0007] As a further description of the above technical solution: The locking assembly includes a movable plate, the front right end of which is rotatably connected to the rear side of the boiler equipment, and a rotating rod rotatably connected to the rear left end of the movable plate. A locking shell is fixedly connected to the left rear end of the boiler equipment, and the bottom of the rotating rod engages with the top of the locking shell.

[0008] As a further description of the above technical solution: A control switch is fixedly connected to the front left side of the inner wall of the mounting bracket. The control switch is electrically connected to the variable frequency fan and the preheater respectively.

[0009] As a further description of the above technical solution: The opening assembly includes a movable door, the top of which is rotatably connected to the top front side of the frame. Pull rods are fixedly connected to the left and right ends of the front side of the movable door, and a heat insulation sleeve is fixedly connected to the middle of the pull rods.

[0010] As a further description of the above technical solution: The connecting assembly includes multiple connecting posts, the right ends of which are fixedly connected to the left side of the sealing sleeve. Multiple connecting grooves are equidistantly provided on the right side of the fixing ring, and the left ends of the connecting posts engage with the connecting grooves.

[0011] As a further description of the above technical solution: The filtration mechanism also includes a rubber ring, the inner wall of which is fixedly connected to the top of the outer wall of the extraction tube.

[0012] As a further description of the above technical solution: The frame is fixedly connected to support frames on both the left and right sides, and corner protectors are fixedly connected to the bottom front and rear sides of the support frames.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by starting the variable frequency fan, it draws in outside air through the filter plate and adsorption carbon column connected to the filter box. After the air is filtered multiple times, the dust and impurities contained in it are reduced. Then, after being heated by the preheater, it enters the boiler equipment, thereby achieving the effect of pressure driving the flue gas flow. This reduces the situation of dust and dirt clogging the inside of the device, thereby improving ventilation efficiency.

[0014] 2. In this utility model, by rotating the locking plate, it can be separated from the locking groove on one side of the sealing sleeve, thereby separating the locking groove from the locking groove, thus unlocking the sealing sleeve. Then, by pulling the sealing sleeve, the connecting component is separated, achieving convenient disassembly of the sealing sleeve. Conversely, installation is completed. This improves the convenience of disassembling and assembling the sealing sleeve when using the connecting valve, reduces the complicated operation of replacing the sealing sleeve, and increases the sealing effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of a boiler combustion ventilation device proposed in this utility model; Figure 2 This is a front view of a boiler combustion ventilation device proposed in this utility model; Figure 3 This is a schematic diagram of the conveying valve pipe of a boiler combustion ventilation device proposed in this utility model; Figure 4 This is an exploded view of the filter mechanism of a boiler combustion ventilation device proposed in this utility model; Figure 5 This is an exploded view of the sealing mechanism of a boiler combustion ventilation device proposed in this utility model.

[0016] Legend: 1. Frame; 2. Filtering mechanism; 201. Mounting bracket; 202. Variable frequency fan; 203. Extraction pipe; 204. Filter box; 205. Filter plate; 206. Adsorption carbon column; 207. Preheater; 208. Locking assembly; 2081. Movable plate; 2082. Locking shell; 2083. Rotating rod; 209. Opening assembly; 2091. Movable door; 2092. Pull rod; 2093. Heat insulation sleeve; 210. Rubber ring; 3. Boiler equipment; 4. Flue shell; 5. Connecting valve; 6. Sealing mechanism; 601. Fixing ring; 602. Locking plate; 603. Engaging groove; 604. Sealing sleeve; 605. Locking groove; 606. Connecting assembly; 6061. Connecting column; 6062. Connecting groove; 7. Support frame; 8. Corner protector; 9. Control switch. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0018] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a boiler combustion ventilation device, including a frame 1, a filter mechanism 2 is provided on the right side of the frame 1, the filter mechanism 2 is used to filter the conveyed airflow, a boiler device 3 is fixedly connected to the left side of the inner bottom wall of the frame 1, a flue shell 4 is fixedly installed on the left side of the boiler device 3, a connecting valve 5 is connected to the top right side of the flue shell 4, the connecting valve 5 is used to connect to a device for extracting flue gas, and a sealing mechanism 6 is provided on the outer wall of the connecting valve 5. The filtration mechanism 2 includes a mounting bracket 201. The left side of the mounting bracket 201 is fixedly connected to the right side of the frame 1. A variable frequency fan 202 is fixedly connected to the rear end of the left side of the inner wall of the mounting bracket 201, so that the airflow can be adjusted when the variable frequency fan 202 is started, thereby achieving the purpose of adjusting the delivery volume. The top of the variable frequency fan 202 is connected to an extraction pipe 203, and the front end of the extraction pipe 203 is connected to a filter box 204. Filter plates 205 are fixedly installed on both the front and rear sides of the inner wall of the filter box 204. The extracted airflow can be filtered through the two filter plates 205. In operation, multiple adsorption carbon columns 206 are slidably installed on the top of the filter box 204. At the same time, multiple detachable adsorption carbon columns 206 can filter the airflow again, thereby improving the cleanliness of the airflow. The front of the top of the variable frequency fan 202 is connected to a preheater 207, which can preheat the airflow. The left end of the preheater 207 is connected to the right side of the boiler equipment 3, thereby avoiding the situation where dust and dirt block the inside of the device and improving ventilation efficiency. A locking component 208 is provided on the rear side of the boiler equipment 3, and an opening component 209 is provided on the front side of the frame 1. The locking assembly 208 includes a movable plate 2081. The front right end of the movable plate 2081 is rotatably connected to the rear side of the boiler equipment 3. The rear left end of the movable plate 2081 is rotatably connected to a rotating rod 2083. By rotating the rotating rod 2083, the movable plate 2081 can be opened, thereby opening the rear side of the boiler equipment 3. A locking shell 2082 is fixedly connected to the left rear end of the boiler equipment 3. The bottom of the rotating rod 2083 engages with the top of the locking shell 2082. Specifically, the filter mechanism 2, located on the right side of frame 1, filters the delivered airflow. The boiler equipment 3, fixedly connected to the left side of the inner bottom wall, and the flue shell 4, fixedly installed on the left side, are connected to the top right side of the connecting valve 5, which is used to connect to the flue gas extraction device. A sealing mechanism 6, located on the outer wall of the connecting valve 5, enhances the seal. In the filter mechanism 2, a variable frequency fan 202, fixedly connected to the mounting bracket 201 on the right side of frame 1, is started to adjust the delivered airflow to regulate the delivery volume. The extraction pipe 203, connected to the top, and the filter box 204, connected to the front end, have filter plates 205 fixedly installed on both the front and rear sides of the inner wall to filter the extracted airflow. A sliding installation is also included. Multiple detachable adsorption carbon columns 206 further filter the airflow to improve its cleanliness. The preheater 207 connected to the front of the top of the variable frequency fan 202 preheats the airflow. The left end is connected to the right side of the boiler equipment 3 to prevent dust and dirt from clogging the inside of the device and improve ventilation efficiency. In the locking assembly 208 set at the rear of the boiler equipment 3, the rotating rod 2083 connected to the left side of the movable plate 2081 at the front right end of the boiler equipment 3 rotates to open the movable plate 2081 to open the rear of the boiler equipment 3. The locking shell 2082 fixedly connected to the left rear end of the boiler equipment 3 engages with the bottom of the rotating rod 2083 to achieve locking.

[0019] Reference Figure 1 , Figure 2 and Figure 5 The sealing mechanism 6 includes a fixing ring 601. The inner wall of the fixing ring 601 is fixedly connected to the outer wall of the connecting valve 5. Multiple locking plates 602 can be rotatably connected through the fixing ring 601. Multiple locking plates 602 are rotatably connected to the right side of the fixing ring 601. A locking groove 603 is provided on one side of the locking plate 602. A sealing sleeve 604 is provided on the right side of the connecting valve 5, so that when the locking plate 602 rotates, it can engage with the locking groove 603 on one side of the sealing sleeve 604, thereby locking the sealing sleeve 604. Multiple locking grooves 605 are provided on the outer wall of the sealing sleeve 604, thereby reducing the complicated operation when replacing the sealing sleeve 604 and avoiding the need for additional tools for disassembly and assembly. The adjacent sides of the multiple locking plates 602 engage with the corresponding locking grooves 605, thereby improving the replacement efficiency of the sealing sleeve 604 and increasing the sealing performance. A connecting component 606 is provided on the left side of the sealing sleeve 604. Specifically, a fixing ring 601 is fixedly connected to the outer wall of the connecting valve 5. The fixing ring 601 rotates and connects to multiple locking plates 602 that are rotatably connected on the right side. Multiple locking grooves 605 are opened on the outer wall of the sealing sleeve 604 on the right side of the connecting valve 5. The engaging groove 603 opened on one side of the locking plate 602 engages with one side of the sealing sleeve 604 as the locking plate 602 rotates. The adjacent sides of the multiple locking plates 602 engage with the corresponding locking grooves 605 to lock the sealing sleeve 604. Conversely, the installation is completed. This reduces the complicated operation when replacing the sealing sleeve 604, avoids the need for additional tools for disassembly and assembly, and improves the replacement efficiency of the sealing sleeve 604.

[0020] Reference Figure 1 , Figure 4 and Figure 5 A control switch 9 is fixedly connected to the front left side of the inner wall of the mounting bracket 201. The control switch 9 is electrically connected to the variable frequency fan 202 and the preheater 207 respectively. The opening component 209 includes a movable door 2091. The top of the movable door 2091 is rotatably connected to the top front side of the frame 1. Pull rods 2092 are fixedly connected to the left and right ends of the front side of the movable door 2091. A heat insulation sleeve 2093 is fixedly connected to the middle of the pull rod 2092. The connecting component 606 includes multiple connecting posts 6061. The right ends of the multiple connecting posts 6061 are fixedly connected to the left side of the sealing sleeve 604. Multiple connecting grooves 6062 are equidistantly opened on the right side of the fixing ring 601. The left ends of the connecting posts 6061 are engaged with the connecting grooves 6062. Specifically, the control switch 9, which is electrically connected to the variable frequency fan 202 and the preheater 207 respectively, enables the equipment to be turned on and off. The pull rod 2092 and the heat insulation sleeve 2093 reduce the risk of burns when opening the movable door 2091. The engagement of the left end of the connecting column 6061 with the connecting groove 6062 improves the stability of the sealing sleeve 604 during use.

[0021] Reference Figure 1 , Figure 2 and Figure 3 The filter mechanism 2 also includes a rubber ring 210, the inner wall of which is fixedly connected to the top of the outer wall of the extraction tube 203; the left and right sides of the frame 1 are fixedly connected to a support frame 7, and the bottom front and rear sides of the support frame 7 are fixedly connected to corner protectors 8. Specifically, the rubber ring 210 can protect the top connection of the outer wall of the extraction tube 203, and the support frame 7 and corner protector 8 can improve the stability of the device during operation.

[0022] Working principle: When started, the variable frequency fan 202 is activated to draw in outside air and simultaneously regulate the airflow to control the delivery volume. The two filter plates 205 in the filter box 204 connected to the top of the extraction pipe 203 filter the extracted airflow. Subsequently, multiple adsorption carbon columns 206 filter the airflow again to improve cleanliness. The preheater 207 connected to the front of the top of the variable frequency fan 202 preheats the airflow. The left end is connected to the right side of the boiler equipment 3, allowing the heated airflow to enter the boiler equipment 3. This reduces the amount of dust particles in the delivered airflow, reduces the blockage of the device by dust and dirt, and improves ventilation efficiency. Rotating the rotating rod 2083 opens the movable plate 2081 to open the rear of the boiler equipment 3. The locking shell 2082 fixed at the rear left side of the boiler equipment 3 engages with the bottom of the rotating rod 2083 to lock it. Furthermore, the fixing ring 601 provides rotatable support for the multiple locking plates 602 rotatably connected on the right side. By rotating the locking plates 602, their adjacent sides engage with the corresponding locking grooves 605, thereby locking the sealing sleeve 604. When the locking plates 602 rotate in the opposite direction, they separate from the locking grooves 605 on one side of the sealing sleeve 604, and the engaging groove 603 separates from the locking grooves 605, thus unlocking the sealing sleeve 604. Pulling the sealing sleeve 604 separates the connecting assembly 606, enabling convenient disassembly. The reverse operation completes the installation. Through the above process, the ease of disassembly and assembly of the sealing sleeve 604 during the use of the connecting valve 5 is improved, the complicated operation of replacing the sealing sleeve 604 is reduced, and the sealing effect is enhanced in conjunction with the sealing assembly 606.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 boiler combustion ventilation device comprising a frame (1), characterized in that: A filter mechanism (2) is provided on the right side of the frame (1), a boiler device (3) is fixedly connected to the left side of the inner bottom wall of the frame (1), a flue shell (4) is fixedly installed on the left side of the boiler device (3), a connecting valve (5) is connected to the top right side of the flue shell (4), and a sealing mechanism (6) is provided on the outer wall of the connecting valve (5). The filtration mechanism (2) includes a mounting frame (201). The left side of the mounting frame (201) is fixedly connected to the right side of the frame (1). A variable frequency fan (202) is fixedly connected to the rear end of the left side of the inner wall of the mounting frame (201). An extraction pipe (203) is connected to the top of the variable frequency fan (202). A filter box (204) is connected to the front end of the extraction pipe (203). Filter plates (205) are fixedly installed on both the front and rear sides of the inner wall of the filter box (204). Multiple adsorption carbon columns (206) are slidably installed on the top of the filter box (204). A preheater (207) is connected to the front side of the top of the variable frequency fan (202). The left end of the preheater (207) is connected to the right side of the boiler equipment (3). A locking component (208) is provided on the rear side of the boiler equipment (3). An opening component (209) is provided on the front side of the frame (1).

2. A boiler combustion air venting device according to claim 1, characterised in that: The sealing mechanism (6) includes a fixing ring (601), the inner wall of which is fixedly connected to the outer wall of the connecting valve (5). A plurality of locking plates (602) are rotatably connected to the right side of the fixing ring (601). A locking groove (603) is provided on one side of the locking plate (602). A sealing sleeve (604) is provided on the right side of the connecting valve (5). A plurality of locking grooves (605) are provided on the outer wall of the sealing sleeve (604). The adjacent sides of the plurality of locking plates (602) are respectively engaged with the corresponding locking grooves (605). A connecting component (606) is provided on the left side of the sealing sleeve (604).

3. A boiler combustion air venting device as defined in claim 1, wherein: The locking assembly (208) includes a movable plate (2081), the front right end of which is rotatably connected to the rear side of the boiler equipment (3), and a rotating rod (2083) is rotatably connected to the rear left end of the movable plate (2081). A locking shell (2082) is fixedly connected to the left rear end of the boiler equipment (3), and the bottom of the rotating rod (2083) engages with the top of the locking shell (2082).

4. A boiler combustion air venting device as defined in claim 1, wherein: A control switch (9) is fixedly connected to the front end of the left side of the inner wall of the mounting bracket (201). The control switch (9) is electrically connected to the variable frequency fan (202) and the preheater (207) respectively.

5. A boiler combustion ventilation device according to claim 1, characterized in that: The opening component (209) includes a movable door (2091), the top of which is rotatably connected to the front top of the frame (1), and a pull rod (2092) is fixedly connected to the left and right ends of the front side of the movable door (2091), and a heat insulation sleeve (2093) is fixedly connected to the middle of the pull rod (2092).

6. A boiler combustion ventilation device according to claim 2, characterized in that: The connecting assembly (606) includes multiple connecting posts (6061), the right ends of which are fixedly connected to the left side of the sealing sleeve (604). Multiple connecting grooves (6062) are provided at equal intervals on the right side of the fixing ring (601), and the left end of the connecting post (6061) engages with the connecting groove (6062).

7. A boiler combustion air venting device as defined in claim 1, wherein: The filter mechanism (2) also includes a rubber ring (210), the inner wall of which is fixedly connected to the top of the outer wall of the extraction tube (203).

8. A boiler combustion air venting device as defined in claim 1, wherein: The frame (1) is fixedly connected to the left and right sides with support frames (7), and the bottom front and back sides of the support frames (7) are fixedly connected to corner protectors (8).

Images