Energy-saving air feeder for thermal power plant

Abstract

The utility model discloses an energy-saving blower for a thermal power plant, which comprises a support device, positioning devices are symmetrically and fixedly arranged on the outer ring of the support device, a displacement device is inserted between the two positioning devices in a sliding manner, and the displacement device comprises a frame, an interception net, a sliding sleeve frame, a synchronous connecting rod and an alignment hole, the synchronous connecting rods are symmetrically and fixedly installed between the two frames, the intercepting nets are fixedly installed on inner rings of the frames, the sliding sleeve frames are fixedly installed on the tops and the bottoms of the rear ends of the frames, and the alignment holes are symmetrically formed in the sliding sleeve frames. The positioning device comprises a transverse support, a guide vertical rod, a handle, a reset spring, a positioning pin, anti-disengaging pieces and a transverse rod, the anti-disengaging pieces are fixedly installed at the two ends of the transverse support, and the transverse rod is fixedly installed between the two anti-disengaging pieces. Through the arrangement of the displacement device and the positioning device, the purpose of quickly replacing and cleaning the intercepting net is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically an energy-saving blower for thermal power plants. Background Technology

[0002] The power unit that delivers the air required for fuel combustion into the boiler must overcome all resistance from the air duct inlet to the furnace during balanced ventilation, including the resistance of the air preheater, air duct, grate, and fuel bed. During positive pressure ventilation, the blower must overcome all flue and air duct resistance from the air duct inlet to the chimney outlet, including the resistance of the air preheater, air duct, grate, fuel bed, and all the flue resistance up to the chimney outlet.

[0003] For example, a blower with Chinese patent publication number CN201779042U includes at least a shroud, a motor fixed inside the shroud, and a centrifugal impeller fixed to the motor shaft inside the shroud. The shroud has an air inlet upstream of the centrifugal impeller and an air outlet axially located downstream of the air inlet. The air inlet has a guide shroud for drawing external air into the shroud. The guide shroud has a tubular outer wall protruding outward toward the air inlet and a conical inner wall integrally formed with the tubular outer wall and folded back inside the tubular outer wall to gradually taper inward.

[0004] When existing thermal power plant blowers are in use, airborne impurities accumulate on the filter screen at the rear of the blower due to the blower's continuous operation. This results in a large amount of flocculent impurities adhering to the filter screen. In addition, the filter screen is fixedly installed on the air inlet, making it difficult for the blower to clean the screen quickly. Therefore, an improved device is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving blower for thermal power plants to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving blower for thermal power plants, comprising a support device, a positioning device symmetrically fixedly installed on the outer ring of the support device, and a displacement device slidably inserted between the two positioning devices. The displacement device includes a frame, an intercepting net, a sliding sleeve, a synchronous connecting rod, and alignment holes. The synchronous connecting rod is symmetrically fixedly installed between the two frames, the intercepting net is fixedly installed on the inner ring of the frame, the sliding sleeve is fixedly installed on the top and bottom of the rear end of the frame, and the alignment holes are symmetrically opened on the sliding sleeve.

[0007] Preferably, the positioning device includes a horizontal support, a guide rod, a handle, a return spring, a positioning pin, an anti-detachment plate, and a crossbar. The anti-detachment plate is fixedly installed on both ends of the horizontal support, the crossbar is fixedly installed between the two anti-detachment plates, the guide rod is symmetrically fixedly installed on the top of the horizontal support, the handle is slidably sleeved on the outer ring of the guide rod, the return spring is symmetrically fixedly installed between the horizontal support and the handle, the positioning pin is symmetrically fixedly installed at the bottom of the handle, and the support device includes a base and a blower. The base is fixedly installed at the front end of the outer ring of the blower.

[0008] Preferably, the transverse support is fixedly installed at the top and bottom of the base, and the sliding sleeve is slidably sleeved on the outer ring of the crossbar.

[0009] Preferably, the top and bottom ends of the sliding sleeve are respectively attached to the top and bottom ends of the inner wall of the transverse support.

[0010] Preferably, the sliding sleeve has a circular hole at its center.

[0011] Preferably, the handle has a vertical hole inside that is adapted to the guide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In use, this device has two intercepting nets connected to each other. When one net moves, it can align the other net with the blower. At the same time, the handle can be pulled upwards, allowing the positioning pin to move out of the alignment hole and release the sliding sleeve. Then, when the handle is released, the elasticity of the return spring will cause the handle to move downwards quickly, allowing the positioning pin to pass through the transverse bracket and enter the alignment hole, thus fixing the sliding sleeve and completing the quick switching and positioning of the intercepting nets. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the displacement device structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning device structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the support device structure of this utility model.

[0018] In the diagram: 1-Displacement device, 2-Positioning device, 3-Supporting device, 4-Frame, 5-Interception net, 6-Sliding sleeve, 7-Synchronous connecting rod, 8-Alignment hole, 9-Horizontal support, 10-Guide vertical rod, 11-Handle, 12-Reset spring, 13-Positioning pin, 14-Anti-detachment plate, 15-Horizontal bar, 16-Base, 17-Blower. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 An embodiment of this utility model provides an energy-saving blower for thermal power plants, including a support device 3. Positioning devices 2 are symmetrically fixedly installed on the outer ring of the support device 3. A displacement device 1 is slidably inserted between the two positioning devices 2. The displacement device 1 includes a frame 4, an interception net 5, a sliding sleeve 6, a synchronous connecting rod 7, and alignment holes 8. The synchronous connecting rod 7 is symmetrically fixedly installed between the two frames 4. The interception net 5 is fixedly installed on the inner ring of the frame 4. The sliding sleeve 6 is fixedly installed on the top and bottom of the rear end of the frame 4. The alignment holes 8 are symmetrically opened on the sliding sleeve 6.

[0021] The positioning device 2 includes a horizontal support 9, a guide vertical rod 10, a handle 11, a return spring 12, a positioning pin 13, an anti-detachment piece 14, and a horizontal bar 15. The anti-detachment piece 14 is fixedly installed on both ends of the horizontal support 9, and the horizontal bar 15 is fixedly installed between the two anti-detachment pieces 14. The guide vertical rod 10 is symmetrically fixedly installed on the top of the horizontal support 9. The handle 11 is slidably sleeved on the outer ring of the guide vertical rod 10. The return spring 12 is symmetrically fixedly installed between the horizontal support 9 and the handle 11. The positioning pin 13 is symmetrically fixedly installed on the bottom end of the handle 11. The support device 3 includes a base 16 and a blower 17. The base 16 is fixedly installed on the front end of the outer ring of the blower 17. It can be moved out from the inside of the alignment hole 8 through the positioning pin 13, and the sliding sleeve 6 can be released.

[0022] The horizontal support 9 is fixedly installed at the top and bottom of the base 16, and the sliding sleeve 6 is slidably sleeved on the outer ring of the horizontal bar 15, which can support the interception net 5 to move in a straight line.

[0023] The top and bottom of the sliding sleeve 6 are respectively attached to the top and bottom of the inner wall of the transverse support 9 to prevent the sliding sleeve 6 from rotating or tilting.

[0024] A circular hole is provided in the center of the sliding sleeve 6 to facilitate the sliding of the sliding sleeve 6 on the crossbar 15.

[0025] The handle 11 has a vertical hole inside that matches the guide rod 10, ensuring that the handle 11 slides up and down in a straight line.

[0026] Working principle: In use, first move the blower 17 to the designated working area, then tighten the external bolts through the bottom of the blower 17 to the ground to complete the installation of the blower 17. When the blower 17 is running, impurities in the air can be blocked by the interception net 5, thus the impurities can adhere to the surface of the interception net 5. When the impurities on the interception net 5 accumulate to a certain amount, the handle 11 can be pulled upwards, so that the positioning pin 13 can be moved out from the inside of the alignment hole 8. At this time, the sliding sleeve 6 can be unlocked, and then the synchronous connecting rod 7 can be moved towards... The device moves to one side, sliding the sleeve 6 onto the crossbar 15, allowing two intercepting nets 5 to move laterally in a straight line. Then, when the other unused intercepting net 5 moves to be horizontally aligned with the blower 17, it can cause the alignment hole 8 to be vertically aligned with the positioning pin 13. At this point, the handle 11 can be released, and the elasticity of the return spring 12 will cause the positioning pin 13 to move rapidly downwards, allowing it to insert into the alignment hole 8, thus restricting the other unused intercepting net 5. Simultaneously, the intercepting net 5 with attached impurities can... Moving to one side, the user can use external cleaning tools to clean the inside of the interceptor net 5, which is covered with impurities. During the sliding process of the interceptor net 5, the top and bottom ends of the sliding sleeve 6 are respectively in contact with the top and bottom ends of the inner wall of the horizontal support 9, ensuring that the sliding sleeve 6 moves in a straight line. Simultaneously, the two interceptor nets 5 can slide at the air inlet of the blower 17, allowing the blower 17 to operate normally while cleaning the other interceptor net 5, thus avoiding downtime caused by cleaning the interceptor net 5. Meanwhile, by setting anti-detachment plates 14 at both ends of the transverse support 9, the sliding sleeve 6 can be prevented from falling off the inside of the transverse support 9 during displacement. Furthermore, the anti-detachment plates 14 are bolted to both ends of the transverse support 9. When the two intercepting nets 5 need to be removed as a whole, the bolts installed on the anti-detachment plates 14 and one end of the transverse support 9 can be removed, and then the anti-detachment plates 14 can be separated from the transverse support 9. Subsequently, the sliding sleeve 6 is moved to the side until the sliding sleeve 6 is removed from the crossbar 15, and then the intercepting nets 5 can be completely removed, completing the work.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving blower for thermal power plants, comprising a support device (3), wherein positioning devices (2) are symmetrically fixedly installed on the outer ring of the support device (3), and a displacement device (1) is slidably inserted between the two positioning devices (2), characterized in that: The displacement device (1) includes a frame (4), an interception net (5), a sliding sleeve (6), a synchronous connecting rod (7), and an alignment hole (8). The synchronous connecting rod (7) is symmetrically fixedly installed between the two frames (4). The interception net (5) is fixedly installed on the inner ring of the frame (4). The sliding sleeve (6) is fixedly installed on the top and bottom of the rear end of the frame (4). The alignment hole (8) is symmetrically opened on the sliding sleeve (6).

2. The energy-saving blower for thermal power plants according to claim 1, characterized in that: The positioning device (2) includes a horizontal support (9), a guide rod (10), a handle (11), a return spring (12), a positioning pin (13), an anti-detachment piece (14), and a crossbar (15). The anti-detachment piece (14) is fixedly installed on both ends of the horizontal support (9), and the crossbar (15) is fixedly installed between the two anti-detachment pieces (14). The guide rod (10) is symmetrically fixedly installed at the top of the horizontal support (9). The handle (11) is slidably sleeved on the outer ring of the guide rod (10). The return spring (12) is symmetrically fixedly installed between the horizontal support (9) and the handle (11). The positioning pin (13) is symmetrically fixedly installed at the bottom end of the handle (11). The support device (3) includes a base (16) and a blower (17). The base (16) is fixedly installed at the front end of the outer ring of the blower (17).

3. The energy-saving blower for thermal power plants according to claim 2, characterized in that: The transverse support (9) is fixedly installed at the top and bottom of the base (16), and the sliding sleeve (6) is slidably sleeved on the outer ring of the crossbar (15).

4. The energy-saving blower for thermal power plants according to claim 3, characterized in that: The top and bottom of the sliding sleeve (6) are respectively attached to the top and bottom of the inner wall of the transverse support (9).

5. The energy-saving blower for thermal power plants according to claim 4, characterized in that: The sliding sleeve (6) has a circular hole at its center.

6. The energy-saving blower for thermal power plants according to claim 5, characterized in that: The handle (11) has a vertical hole inside that is adapted to the guide rod (10).

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