Energy-saving combustion air blower

Abstract

The present application belongs to the field of boiler supporting equipment, and particularly relates to an energy-saving combustion air blower, which comprises a mounting seat, a guide rail, a blower body, a fixing seat, an air outlet, an air outlet pipe, a cylinder, an exhaust pipe, a spring, a damping structure, a push-pull rod and a sliding potentiometer and the like. When the pressure at the exhaust pipe connection with external equipment increases, the blower body and the fixing seat are pushed to compress the spring to slide, the sliding potentiometer is driven by the push-pull rod to adjust the rotating speed of the driving motor to reduce the air volume, and the motor is prevented from being damaged by high pressure. The spring installation assembly can adjust the spring pre-tightening force to realize the pressure threshold value adaptive adjustment. The present application can automatically adapt to the pressure change of the exhaust pipe, ensure the safe operation of the motor, has the energy-saving effect and damping stability, and has strong adaptability.

Description

Technical Field

[0001] This invention belongs to the field of boiler auxiliary equipment, specifically relating to an energy-saving combustion air blower. Background Technology

[0002] In industrial combustion equipment and heating boilers, combustion air blowers are core supporting equipment, providing sufficient air for the combustion process to ensure complete fuel combustion. Most existing combustion air blowers operate at a fixed speed. When the internal pressure of the external combustion equipment connected to the blower's exhaust pipe fluctuates (especially with a sudden increase in pressure), the blower's outlet resistance rises sharply, causing a sudden increase in the load on the drive motor. This not only consumes a large amount of extra electrical energy but also easily leads to motor overload and overheating, potentially causing motor burnout and other malfunctions, affecting the normal operation of the combustion equipment. Furthermore, the existing blower's installation structure lacks effective vibration damping design. Vibrations generated during operation are transmitted to the main body of the equipment or the mounting foundation, reducing operational stability and shortening service life. In addition, existing blowers cannot flexibly adjust the pressure threshold according to actual operating conditions, resulting in poor adaptability and difficulty in meeting the needs of different combustion equipment or different combustion conditions. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an energy-saving combustion air blower that can automatically adapt to changes in exhaust pipe pressure, ensure motor safety, and has advantages such as energy saving, vibration reduction, and strong adaptability.

[0004] To achieve the above objectives, the specific technical solution of the present invention is as follows: An energy-saving combustion air blower includes a mounting base, a guide rail, a blower body, a fixed base, an air outlet, an air outlet pipe, a cylinder, an exhaust pipe, a spring, a shock-absorbing structure, a push-pull rod, and a sliding potentiometer. The guide rail is fixedly mounted on the top surface of the mounting base, and the blower body is fixedly mounted on the top surface of the fixed base. The fixed base slides with the guide rail via a bottom slider structure, and the sliding direction is parallel to the axis of the cylinder. The air outlet is integrally formed on the output end of the blower body. One end of the air outlet pipe is fixedly connected to the air outlet, and the other end is slidably sleeved with the cylinder. The side end of the cylinder is fixed to the exhaust pipe. The ventilation duct is used to connect to external equipment. A spring mounting assembly is provided on the side of the mounting base away from the cylinder. The spring is located between the spring mounting assembly and the blower body, and the spring always pushes the blower body towards the cylinder. The shock absorption structure is located below the mounting base to resist vertical vibration. One end of the push-pull rod is fixedly connected to the fixed base, and the other end is fixedly connected to the toggle block of the sliding potentiometer. The sliding potentiometer is fixedly installed on the top surface of the mounting base and is electrically connected to the drive motor of the blower body. The sliding potentiometer is used to adjust the speed of the drive motor.

[0005] As a further provision of the above solution, the spring mounting assembly includes a sliding plate, an adjusting screw, a first guide rod, a first support plate, and a second support plate. The first support plate is vertically fixed to the top surface of the mounting base, and the second support plate is vertically fixed to the top surface of the mounting base. The adjusting screw passes through the first support plate and is threadedly engaged with it. The first guide rod passes through the first support plate and is slidably engaged with it. The axis of the first guide rod is parallel to the axis of the adjusting screw. The sliding plate is located on the side of the first support plate near the blower body, and one end of the adjusting screw is rotatably connected to the sliding plate. One end of the first guide rod is fixedly connected to the sliding plate. One end of the spring is fixedly connected to the sliding plate, and the other end abuts against the second support plate.

[0006] As a further feature of the above scheme, a second guide rod is provided through the sliding plate, the second guide rod is slidably engaged with the sliding plate, a first retaining ring is fixed at one end of the second guide rod, and the other end of the second guide rod is fixedly connected to the side wall of the second support plate, and the spring is sleeved on the second guide rod.

[0007] As a further feature of the above solution, the damping structure includes a damping seat and a damping spring. The damping seat is located below the mounting base. Damping columns are fixed at the four corners of the top surface of the damping seat. The top of each damping column penetrates the mounting base vertically and is fixed with a second retaining ring. The damping column slides in conjunction with the mounting base. The damping spring is fitted onto the damping column, and both ends of the damping spring abut against the top surface of the damping seat and the bottom surface of the mounting base, respectively.

[0008] As a further feature of the above solution, a number of guide protrusions are evenly fixed on the inner wall of the air outlet pipe, and a guide groove adapted to the guide protrusions is provided on the outer wall of the cylinder. The guide protrusions are embedded in the guide groove and slide in cooperation with the guide groove to limit the sliding stroke of the air outlet pipe and the cylinder.

[0009] As a further feature of the above solution, the push-pull rod is fixedly connected to the fixed base via a connecting seat, the connecting seat is fixedly connected to the top surface of the fixed base via bolts, the push-pull rod is fixed to the toggle block of the sliding potentiometer via bolts, and the toggle block of the sliding potentiometer is provided with a threaded hole for bolt thread connection.

[0010] As a further feature of the above solution, the guide rail is a T-slot guide rail, the slider structure at the bottom of the fixed base is a T-shaped slider adapted to the T-slot guide rail, and the two ends of the guide rail are provided with limit blocks to limit the sliding limit position of the blower body.

[0011] As a further feature of the above solution, the end of the adjusting screw away from the sliding plate is provided with an adjusting handle, and the adjusting handle is provided with anti-slip texture.

[0012] As a further feature of the above solution, the sliding potentiometer is provided with a cover, the bottom of which is fixed to the top surface of the mounting base by bolts, and the cover has an opening on the side facing the mounting base for inserting a push-pull rod.

[0013] As a further feature of the above solution, a fixing block is fixed to one side of the top surface of the mounting base, and a clamp is fixed to the top of the fixing block. The clamp is fixedly sleeved on the cylinder to limit the displacement of the cylinder.

[0014] The beneficial effects of this invention are: Automatically adapts to pressure changes to ensure motor safety: When the pressure at the connection point of the exhaust pipe to external equipment increases, the pressure is transmitted to the blower body through the cylinder and exhaust pipe, pushing the blower body and the fixed base to slide the compression spring. Simultaneously, the push-pull rod drives the toggle block of the sliding potentiometer to move, adjusting the drive motor speed through the sliding potentiometer to reduce the air volume and reduce the motor load, avoiding damage to the motor due to high voltage overload, while achieving energy-saving operation.

[0015] Adjustable pressure threshold and strong adaptability: By rotating the adjusting screw, the sliding plate can be driven to slide along the first guide rod, adjusting the distance between the sliding plate and the second support plate, thereby adjusting the preload of the spring, realizing flexible adjustment of the blower to meet the pressure threshold, adapting to the pressure requirements of different external equipment or different combustion conditions, and ensuring that the blower always operates at the optimal pressure.

[0016] Stable operation and good vibration reduction: The vibration reduction structure set under the mounting base can effectively resist the vertical vibration generated during the operation of the blower through the cooperation of the vibration reduction column and the vibration reduction spring, reduce the impact of vibration on the installation foundation and the equipment itself, improve the operational stability, and extend the service life of the equipment; at the same time, the second guide rod guides the spring to avoid the spring from shifting during compression or extension, and ensures the adjustment accuracy.

[0017] Reliable structure and good protection: The cylinder is fixed by clamps to prevent displacement of the cylinder during the sliding of the blower, ensuring the stability of the sliding fit between the air outlet pipe and the cylinder; the cover set outside the sliding potentiometer can effectively prevent dust and debris impact, protect the normal operation of the sliding potentiometer, and improve the overall reliability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure described in this invention; Figure 2 This is a perspective view of the structure described in this invention; Figure 3 This is a side view of the structure described in this invention; Figure 4 The structure described in this invention Figure 3 AA section diagram; Figure 5 The structure described in this invention Figure 1 Enlarged view of part A in the middle.

[0019] In the diagram: 1. Mounting base; 2. Guide rail; 3. Blower body; 4. Air outlet; 5. Air outlet pipe; 6. Cylinder; 7. Exhaust pipe; 8. Spring; 9. Shock-absorbing structure; 10. Push-pull rod; 11. Sliding potentiometer; 12. Clamp; 13. Sliding plate; 14. Adjusting screw; 15. Fixing block; 16. First support plate; 17. Second support plate; 18. Second guide rod; 19. First retaining ring; 20. First guide rod; 21. Shock-absorbing seat; 22. Shock-absorbing column; 23. Shock-absorbing spring; 24. Second retaining ring; 25. T-shaped slider; 26. Guide groove; 27. Guide protrusion; 28. Connecting seat; 29. ​​Cover; 30. Fixing seat; 31. Adjusting handle. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0022] This embodiment discloses an energy-saving combustion air blower, including a mounting base 1, a guide rail 2, a blower body 3, a fixed base 30, an air outlet 4, an air outlet pipe 5, a cylinder 6, an exhaust pipe 7, a spring 8, a shock-absorbing structure 9, a push-pull rod 10, and a sliding potentiometer 11. The guide rail 2 is fixedly disposed on the top surface of the mounting base 1, and the blower body 3 is fixedly disposed on the top surface of the fixed base 30. The fixed base 30 slides with the guide rail 2 through a bottom slider structure, and the sliding direction is parallel to the axis of the cylinder 6. The air outlet 4 is integrally formed on the output end of the blower body 3. One end of the air outlet pipe 5 is fixedly connected to the air outlet 4, and the other end is slidably sleeved with the cylinder 6. The side end of body 6 is fixedly connected to exhaust pipe 7, which is used to connect to external equipment; a spring mounting assembly is provided on the side of the mounting base away from body 6, and the spring 8 is located between the spring mounting assembly and the blower body 3, and the spring 8 always pushes the blower body 3 towards body 6; the shock absorption structure 9 is located below the mounting base 1 to resist vertical vibration; one end of the push-pull rod 10 is fixedly connected to the fixed base 30, and the other end is fixedly connected to the toggle block of the sliding potentiometer 11. The sliding potentiometer 11 is fixedly installed on the top surface of the mounting base 1, and the sliding potentiometer 11 is electrically connected to the drive motor of the blower body 3 to adjust the speed of the drive motor.

[0023] The spring mounting assembly includes a sliding plate 13, an adjusting screw 14, a first guide rod 20, a first support plate 16, and a second support plate 17. The first support plate 16 is vertically fixed to the top surface of the mounting base 1, and the second support plate 17 is vertically fixed to the top surface of the fixing base 30. The adjusting screw 14 passes through the first support plate 16 and is threadedly engaged with it. The first guide rod 20 passes through the first support plate 16 and is slidably engaged with it. The axis of the first guide rod 20 is parallel to the axis of the adjusting screw 14. The sliding plate 13 is located on the side of the first support plate 16 near the blower body 3, and one end of the adjusting screw 14 is rotatably connected to the sliding plate 13. One end of the first guide rod 20 is fixedly connected to the sliding plate 13. One end of the spring 8 is fixedly connected to the sliding plate 13, and the other end abuts against the second support plate 17.

[0024] A second guide rod 18 is provided through the sliding plate 13. The second guide rod 18 is slidably engaged with the sliding plate 13. A first retaining ring 19 is fixed at one end of the second guide rod 18, and the other end of the second guide rod 18 is fixedly connected to the side wall of the second support plate 17. The spring 8 is sleeved on the second guide rod 18.

[0025] The damping structure 9 includes a damping seat 21, a damping column 22, a damping spring 23, and a second retaining ring 24. The damping seat 21 is located below the mounting base 1. Damping columns 22 are fixed at the four corners of the top surface of the damping seat 21. The top of the damping column 22 vertically penetrates the mounting base 1 and is fixed with the second retaining ring 24. The damping column 22 is slidably engaged with the mounting base 1. The damping spring 23 is fitted onto the damping column 22, and both ends of the damping spring 23 abut against the top surface of the damping seat 21 and the bottom surface of the mounting base 1, respectively.

[0026] A number of guide protrusions 27 are evenly fixed on the inner wall of the air outlet duct 5. The outer wall of the cylinder 6 is provided with guide grooves 26 that are adapted to the guide protrusions 27. The guide protrusions 27 are embedded in the guide grooves 26 and slide in cooperation with the guide grooves 26 to limit the sliding stroke of the air outlet duct 5 and the cylinder 6.

[0027] The push-pull rod 10 is fixedly connected to the fixed base 30 by a connecting seat 28, and the connecting seat 28 is fixedly connected to the top surface of the fixed base 30 by bolts; the push-pull rod 10 is fixed to the actuating block of the sliding potentiometer 11 by bolts, and the actuating block of the sliding potentiometer 11 is provided with a threaded hole for bolt connection.

[0028] The guide rail 2 is a T-slot guide rail, and the slider structure at the bottom of the fixed seat 30 is a T-shaped slider 25 adapted to the T-slot guide rail; the two ends of the guide rail 2 are provided with limit blocks to limit the sliding limit position of the blower body 3.

[0029] An adjusting handle 31 is provided at the end of the adjusting screw 14 away from the sliding plate 13. The adjusting handle 31 is provided with anti-slip texture. A cover 29 is provided on the sliding potentiometer 11. The bottom end of the cover 29 is fixed to the top surface of the mounting base 1 by bolts. An opening for inserting the push-pull rod 10 is opened on the side of the cover 29 facing the fixed base 30. A fixing block 15 is fixed on one side of the top surface of the mounting base 1. A clamp 12 is fixed at the top of the fixing block 15. The clamp 12 is fixedly sleeved on the cylinder 6 to limit the displacement of the cylinder 6.

[0030] The working process of this equipment is as follows: This equipment is mainly divided into three stages: normal operation, pressure increase adjustment, and pressure threshold adjustment.

[0031] Normal operating condition: Before starting the blower body 3, the adjusting screw 14 is adjusted by rotating the adjusting handle 31, which drives the sliding plate 13 to slide along the first guide rod 20, adjusting the distance between the sliding plate 13 and the second support plate 17, thereby setting the preload of the spring 8 and determining the initial pressure threshold for the blower. After starting the blower body 3, the drive motor drives the fan blades to rotate and generate airflow. The airflow is delivered to the external combustion equipment through the air outlet 4, air outlet pipe 5, cylinder 6 and exhaust pipe 7. At this time, if the pressure inside the exhaust pipe 7 is within the normal range, the preload of the spring 8 is sufficient to push the second support plate 17 and the fixed seat 30, keeping the fixed seat 30 in the initial position of the guide rail 2. The push-pull rod 10 drives the toggle block of the sliding potentiometer 11 to the initial position, and the sliding potentiometer 11 outputs the rated current to the drive motor. The drive motor runs at the rated speed to ensure sufficient air volume supply. At the same time, the vertical vibration generated during the operation of the blower is transmitted to the shock absorption structure 9 through the mounting seat 1. The shock absorption spring 23 absorbs the vibration energy through the elastic deformation of compression and extension, realizing shock absorption and buffering, and ensuring stable operation of the equipment.

[0032] Pressure Increase Adjustment State: When the internal pressure of the external combustion equipment connected to the exhaust pipe 7 increases, the high-pressure airflow will generate a reverse thrust on the outlet pipe 5. This thrust is transmitted to the blower body 3 through the outlet pipe 5, thereby pushing the blower body 3 and the fixed seat 30 to slide along the guide rail 2 away from the cylinder 6 and closer to the spring mounting assembly (i.e., the direction of compressing the spring 8). During this process, the fixed seat 30 synchronously drives the push-pull rod 10 to move, and the push-pull rod 10 drives the toggle block of the sliding potentiometer 11 to slide along the guide rail of the sliding potentiometer, changing the resistance value of the sliding potentiometer. Since the sliding potentiometer 11 is electrically connected to the drive motor of the blower body 3, the change in resistance value will cause the current output to the drive motor to decrease, thereby reducing the speed of the drive motor. After the speed of the drive motor decreases, the air volume generated by the blower body 3 decreases accordingly, and the pressure in the outlet pipe 5 and the exhaust pipe 7 decreases synchronously until the pressure and the preload of the spring 8 reach equilibrium. The fixed seat 30 stops sliding, and the drive motor maintains stable operation at the adjusted speed. This automatic adjustment process effectively prevents the drive motor from being damaged by high-voltage overload, while reducing power consumption under high-voltage conditions and achieving energy-saving effects.

[0033] Pressure threshold adjustment status: When it is necessary to adapt to the pressure requirements of different external equipment or different combustion conditions, the operator can rotate the adjusting handle 31 to drive the adjusting screw 14 to rotate. Since the adjusting screw 14 is threadedly engaged with the first support plate 16, and the first guide rod 20 plays a guiding and limiting role on the sliding plate 13, the rotation of the adjusting screw 14 will be converted into the linear movement of the sliding plate 13 along the first guide rod 20: When the adjusting screw 14 rotates towards the second support plate 17, the sliding plate 13 moves towards the second support plate 17, the spring 8 is further compressed, the preload increases, and the blower needs a greater reverse thrust to push the fixed seat 30 to slide, that is, the adapted pressure threshold increases; when the adjusting screw 14 rotates away from the second support plate 17, the sliding plate 13 moves away from the second support plate 17, the preload of the spring 8 decreases, and the adapted pressure threshold decreases. Through the above adjustment, the blower can always adapt to the pressure requirements of the current working condition, ensuring operation at the optimal pressure, balancing air supply and equipment safety.

[0034] Furthermore, throughout the entire operation, the second guide rod 18 guides the compression and extension of the spring 8, preventing lateral displacement of the spring 8 and ensuring adjustment accuracy; the cooperation between the guide protrusion 27 and the guide groove 26 ensures the stability of the sliding fit between the air outlet pipe 5 and the cylinder 6, preventing airflow leakage; the limit block prevents the fixed seat 30 from sliding excessively, which could damage the push-pull rod 10 or the sliding potentiometer 11; the cover 29 prevents dust and debris from entering the interior of the sliding potentiometer 11, ensuring stable adjustment performance; the clamp 12 secures the cylinder 6, preventing displacement of the cylinder 6 under airflow impact or equipment vibration, further improving overall operational reliability. The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined.

Claims

1. An energy-saving combustion air blower, comprising a mounting base, guide rail, blower body, fixed base, air outlet, air outlet pipe, cylinder, exhaust pipe, spring, shock absorption structure, push-pull rod, and sliding potentiometer, characterized in that, The guide rail is fixedly mounted on the top surface of the mounting base. The blower body is fixedly mounted on the top surface of the mounting base. The mounting base slides with the guide rail via a bottom slider structure, and the sliding direction is parallel to the axis of the cylinder. The air outlet is integrally formed on the output end of the blower body. One end of the air outlet pipe is fixedly connected to the air outlet, and the other end is slidably sleeved with the cylinder. The side end of the cylinder is fixedly connected to the exhaust pipe, which is used to connect to external equipment. A spring mounting assembly is provided on the side of the mounting base away from the cylinder. The spring is located between the spring mounting assembly and the blower body, and the spring always pushes the blower body towards the cylinder. The shock absorption structure is located below the mounting base. One end of the push-pull rod is fixedly connected to the mounting base, and the other end is fixedly connected to the toggle block of the sliding potentiometer. The sliding potentiometer is fixedly mounted on the top surface of the mounting base and is electrically connected to the drive motor of the blower body. The sliding potentiometer is used to adjust the speed of the drive motor.

2. The energy-saving combustion air blower according to claim 1, characterized in that, The spring mounting assembly includes a sliding plate, an adjusting screw, a first guide rod, a first support plate, and a second support plate. The first support plate is vertically fixed to the top surface of the mounting base, and the second support plate is vertically fixed to the top surface of the mounting base. The adjusting screw passes through the first support plate and is threadedly engaged with it. The first guide rod passes through the first support plate and is slidably engaged with it. The axis of the first guide rod is parallel to the axis of the adjusting screw. The sliding plate is located on the side of the first support plate near the blower body, and one end of the adjusting screw is rotatably connected to the sliding plate. One end of the first guide rod is fixedly connected to the sliding plate. One end of the spring is fixedly connected to the sliding plate, and the other end abuts against the second support plate.

3. The energy-saving combustion air blower according to claim 2, characterized in that, A second guide rod is provided through the sliding plate, and the second guide rod is slidably engaged with the sliding plate. A first retaining ring is fixed at one end of the second guide rod, and the other end of the second guide rod is fixedly connected to the side wall of the second support plate. The spring is sleeved on the second guide rod.

4. The energy-saving combustion air blower according to claim 1, characterized in that, The damping structure includes a damping seat and a damping spring. The damping seat is located below the mounting base. Damping columns are fixed at the four corners of the top surface of the damping seat. The top of each damping column penetrates the mounting base vertically and is fixed with a second retaining ring. The damping column slides in conjunction with the mounting base. The damping spring is fitted onto the damping column, and its two ends abut against the top surface of the damping seat and the bottom surface of the mounting base, respectively.

5. The energy-saving combustion air blower according to claim 1, characterized in that, Several guide protrusions are evenly fixed on the inner wall of the air outlet pipe, and a guide groove adapted to the guide protrusions is provided on the outer wall of the cylinder. The guide protrusions are embedded in the guide groove and slide in cooperation with the guide groove.

6. The energy-saving combustion air blower according to claim 1, characterized in that, The push-pull rod is fixedly connected to the fixed base via a connecting seat, and the connecting seat is fixedly connected to the top surface of the fixed base via bolts. The push-pull rod is fixed to the toggle block of the sliding potentiometer via bolts, and the toggle block of the sliding potentiometer is provided with a threaded hole for bolt thread connection.

7. The energy-saving combustion air blower according to claim 1, characterized in that, The guide rail is a T-slot guide rail, and the slider structure at the bottom of the fixed base is a T-shaped slider adapted to the T-slot guide rail. Limiting blocks are provided at both ends of the guide rail.

8. The energy-saving combustion air blower according to claim 2, characterized in that, The adjusting screw is provided with an adjusting handle at the end away from the sliding plate, and the adjusting handle is provided with anti-slip texture.

9. The energy-saving combustion air blower according to claim 1, characterized in that, The sliding potentiometer is equipped with a cover, the bottom of which is fixed to the top surface of the mounting base by bolts, and the cover has an opening on the side facing the mounting base for inserting a push-pull rod.

10. The energy-saving combustion air blower according to claim 1, characterized in that, A fixing block is fixed to one side of the top surface of the mounting base, and a clamp is fixed to the top of the fixing block. The clamp is fixedly sleeved on the cylinder.

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