A device for cleaning heating surface of a power plant boiler

Abstract

The utility model relates to power station boiler maintenance technical field especially relates to a power station boiler heating surface ash removal device, including shell, internal thread support and pneumatic vibrator, internal thread support is provided with two groups, two groups internal thread support symmetrical sliding connection in the inside of shell, one end of internal thread support penetrates shell and extends to outside, and pneumatic vibrator fixed mounting is located in one end of internal thread support, the inside of shell rotatably connects with two -way screw rod, two -way screw rod penetrates internal thread support and is connected with its thread, and the periphery fixed mounting of two -way screw rod has worm wheel, the inside of shell rotatably connects with worm, and worm engages with worm wheel, the utility model drives two -way screw rod to rotate through rotating worm, drives two groups internal thread support to move along the axial stability reverse of shell to adjust the contact state of pneumatic vibrator and boiler heating surface pipeline, and pneumatic vibrator peels off the ash of heating surface through the action of shaking and beating, and the ash removal demand of adapting different specifications boilers has the convenience of operation.

Description

Technical Field

[0001] This utility model relates to the field of power plant boiler maintenance technology, and in particular to a device for cleaning ash from the heating surface of a power plant boiler. Background Technology

[0002] Industrial boilers are important thermal power equipment. During long-term operation, a large amount of dust and slag will accumulate on the surface of the heating surface pipes of power plant boilers, which will seriously affect the thermal efficiency and service life of the boiler. In order to maintain the heat transfer efficiency of the boiler heating surface, it is generally necessary to clean the dust in the heating surface of the boiler.

[0003] The heating surface of the boiler is relatively long and narrow, making it impossible for staff to directly enter the heating surface to clean the dust. They can only use simple cleaning tools to clean the dust from the outside of the boiler, which is not only inefficient but also labor-intensive and difficult to adapt to the heating surfaces of boilers of different specifications.

[0004] Therefore, to address the above problems, a power plant boiler heating surface cleaning device can be designed. This device uses a vibrator to vibrate the surface of the heating surface pipes, thereby removing the dust adsorbed on the heating surface. It is also equipped with an adjustment mechanism to adjust the position of the vibrator, thus adapting to power plant boilers of different specifications and having higher applicability. Utility Model Content

[0005] To overcome the problem that when cleaning power plant boilers, the heating surface space of the boiler is relatively narrow and long, making it impossible for workers to directly enter the heating surface to clean dust. They can only use simple cleaning tools to clean the ash outside the boiler, which is not only inefficient but also labor-intensive and difficult to adapt to the heating surfaces of boilers of different specifications.

[0006] The technical solution of this utility model is as follows: a ash removal device for the heating surface of a power plant boiler, comprising a shell, an internal threaded bracket, and a pneumatic vibrator. The shell has a T-shaped structure. Two sets of internal threaded brackets are provided, and the two sets of internal threaded brackets are symmetrically and slidably connected inside the shell. One end of the internal threaded bracket passes through the shell and extends to the outside. The pneumatic vibrator is fixedly installed at one end of the internal threaded bracket. A bidirectional screw is rotatably connected inside the shell. The bidirectional screw passes through the internal threaded bracket and is threadedly connected to it. A worm wheel is fixedly installed on the periphery of the bidirectional screw. A worm is rotatably connected inside the shell, and the worm meshes with the worm wheel.

[0007] Preferably, the pneumatic vibrator is installed by supporting and mounting the internal threaded bracket with the outer shell. The worm and worm wheel form a transmission pair. By rotating the worm, the bidirectional screw is driven to rotate, which drives the two sets of internal threaded brackets to move stably in opposite directions along the axial direction of the outer shell. This adjusts the contact state between the pneumatic vibrator and the boiler heating surface pipes. The pneumatic vibrator peels off the ash from the heating surface through rapping action, adapting to the ash cleaning needs of boilers of different specifications and providing convenient operation.

[0008] Preferably, a rubber pad is provided at one end of the pneumatic vibrator.

[0009] Preferably, the gas supply assembly includes a gas supply channel, an external interface, and a corrugated hose. The gas supply channel is provided inside the housing, and an external interface is fixedly installed at one end of the housing. The external interface is connected to the gas supply channel, and the corrugated hose is connected to the input end of the air pump. The other end of the corrugated hose is connected to the gas supply channel.

[0010] Preferably, the mounting assembly includes a fixed bracket and a connecting sleeve, the connecting sleeve being slidably connected to the outer periphery of the housing, the fixed bracket being disposed on the outer periphery of the connecting sleeve, and the fixed bracket being rotatably connected to the connecting sleeve.

[0011] Preferably, multiple handles are fixedly installed on the outer periphery of the housing, and the connection between the connecting sleeve and the housing and the connection between the connecting sleeve and the fixed bracket both have a certain degree of damping.

[0012] Preferably, the locking assembly includes a turntable and a lever, with the turntable fixedly mounted on one end of the worm gear and the lever slidably connected inside the turntable.

[0013] Preferably, the locking assembly includes a spring and a fixing hole. The spring is fixedly installed between the lever and the turntable. One end of the housing has multiple sets of fixing holes evenly arranged around the axis of the turntable, and one end of the lever is located inside one set of fixing holes.

[0014] The beneficial effects of this utility model are:

[0015] The outer casing can be fixedly installed in a suitable position outside the boiler using a fixed bracket and connecting sleeve, allowing the end of the casing with the pneumatic vibrator to extend into the boiler's heating surface. The sliding position and rotation angle of the casing within the connecting sleeve can be adjusted using a handle, enabling flexible adjustment of the ash removal position. Then, the lever is pulled out of the fixing hole, driving the turntable to rotate the worm gear. The rotating worm gear drives the bidirectional screw, causing two sets of internal threaded brackets to move stably in opposite directions along the outer casing's axial direction. This adjusts the contact state between the pneumatic vibrator and the boiler's heating surface pipes. The pneumatic vibrator then uses a rapping action to peel off the ash from the heating surface. A rubber pad at the end of the pneumatic vibrator provides cushioning protection when in contact with the heating surface pipes, preventing wear on the pipe surface. Finally, an external dust collector is used to clean the peeled ash. The easily adjustable pneumatic vibrator can adapt to the ash removal needs of boilers of different specifications, offering convenient operation and greater applicability. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the ash removal device for the heating surface of a power plant boiler according to this utility model.

[0017] Figure 2 This invention relates to a ash removal device for the heating surface of a power plant boiler. Figure 1 Enlarged 3D structural diagram of the circled area;

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the ash removal device for the heating surface of a power plant boiler according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the ash removal device for the heating surface of a power plant boiler according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Internal threaded bracket; 201. Bidirectional screw; 202. Worm gear; 203. Worm; 3. Pneumatic vibrator; 301. Rubber pad; 401. Air supply channel; 402. External interface; 403. Corrugated hose; 501. Fixed bracket; 502. Connecting sleeve; 6. Handle; 701. Turntable; 702. Lever; 703. Spring; 704. Fixing hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 4This utility model provides an embodiment: a ash removal device for the heating surface of a power plant boiler, comprising a shell 1, an internal threaded bracket 2, and a pneumatic vibrator 3. The shell 1 has a T-shaped structure. Two sets of internal threaded brackets 2 are symmetrically and slidably connected inside the shell 1. One end of each internal threaded bracket 2 penetrates the shell 1 and extends to the outside. The pneumatic vibrator 3 is fixedly installed at one end of the internal threaded bracket 2. A bidirectional screw 201 is rotatably connected inside the shell 1. The bidirectional screw 201 penetrates the internal threaded bracket 2 and is threadedly connected to it. A worm gear 202 is fixedly installed around the periphery of the bidirectional screw 201. The internal rotating connection of the 1 is a worm 203, which meshes with the worm wheel 202. The shell 1 supports and installs the internal threaded bracket 2, and the internal threaded bracket 2 is used to install the pneumatic vibrator 3. The worm 203 and the worm wheel 202 form a transmission pair. By rotating the worm 203, the bidirectional screw 201 is driven to rotate, which drives the two sets of internal threaded brackets 2 to move stably in opposite directions along the axial direction of the shell 1, thereby adjusting the contact state between the pneumatic vibrator 3 and the boiler heating surface pipe. The pneumatic vibrator 3 peels off the ash on the heating surface through rapping action, which can meet the ash cleaning needs of boilers of different specifications and has convenient operation.

[0023] Please see Figure 1 and Figure 3 In this embodiment, a rubber pad 301 is provided at one end of the pneumatic vibrator 3. The rubber pad 301 can provide a certain degree of protection when the pneumatic vibrator 3 comes into contact with the heated surface pipe, preventing wear on the heated surface pipe. The air supply assembly includes an air supply channel 401, an external interface 402, and a corrugated hose 403. The air supply channel 401 is provided inside the housing 1. An external interface 402 is fixedly installed at one end of the housing 1, and the external interface 402 is connected to the air supply channel 401. The corrugated hose 403 is connected to the input end of the air pump, and the other end of the corrugated hose 403 is connected to the air supply channel 401. By providing the external interface 402, an external air supply device can be connected, thereby supplying air to the pneumatic vibrator 3 through the air supply channel 401 and the corrugated hose 403.

[0024] Please see Figure 2 and Figure 3In this embodiment, the installation assembly includes a fixed bracket 501 and a connecting sleeve 502. The connecting sleeve 502 is slidably connected to the periphery of the outer shell 1, and the fixed bracket 501 is disposed on the periphery of the connecting sleeve 502. The fixed bracket 501 and the connecting sleeve 502 are rotatably connected. Multiple sets of handles 6 are fixedly installed on the periphery of the outer shell 1, and the connection between the connecting sleeve 502 and the outer shell 1 and the connection between the connecting sleeve 502 and the fixed bracket 501 both have a certain degree of damping. By setting the fixed bracket 501 in conjunction with the connecting sleeve 502, the outer shell 1 can be fixedly installed in a suitable position outside the boiler, and the end of the outer shell 1 with the pneumatic vibrator 3 can be inserted into the boiler heating surface. By setting the handles 6, the sliding position and rotation angle of the outer shell 1 in the connecting sleeve 502 can be adjusted to achieve flexible adjustment of the ash removal position. Locking group The component includes a turntable 701 and a lever 702. The turntable 701 is fixedly installed at one end of the worm gear 203. The lever 702 is slidably connected inside the turntable 701. The locking assembly includes a spring 703 and a fixing hole 704. The spring 703 is fixedly installed between the lever 702 and the turntable 701. One end of the housing 1 has multiple sets of fixing holes 704 evenly arranged around the axis of the turntable 701. One end of the lever 702 is located inside one set of fixing holes 704. By pulling the lever 702 away from the fixing hole 704, the turntable 701 can be rotated, thereby driving the worm gear 203 to rotate. After the worm gear 203 has rotated, the spring 703 provides pressure to the lever 702, so that one end of the lever 702 is stably inserted into the appropriate fixing hole 704, thereby locking the worm gear 203.

[0025] When working, the outer shell 1 can be fixedly installed in a suitable position outside the boiler by using the fixed bracket 501 and the connecting sleeve 502, so that the end of the outer shell 1 with the pneumatic vibrator 3 extends into the boiler heating surface. The sliding position and rotation angle of the outer shell 1 in the connecting sleeve 502 can be adjusted by using the handle 6, so as to realize the flexible adjustment of the ash cleaning position.

[0026] Then pull out the lever 702 away from the fixing hole 704. Use the lever 702 to drive the turntable 701 to drive the worm gear 203 to rotate. By rotating the worm gear 203, the bidirectional screw 201 is driven to rotate, driving the two sets of internal threaded brackets 2 to move stably in opposite directions along the axial direction of the outer shell 1. This adjusts the contact state between the pneumatic vibrator 3 and the boiler heating surface pipe. Then, the pneumatic vibrator 3 is used to peel off the ash from the heating surface through the rapping action. The pneumatic vibrator 3 is equipped with a rubber pad 301 at the end to provide buffer protection when in contact with the heating surface pipe and avoid wear on the pipe surface. Then, use an external dust collection device to clean the peeled ash.

[0027] The pneumatic vibrator 3, with its easily adjustable position, can adapt to the ash cleaning needs of boilers of different specifications. It is easy to operate and has higher applicability.

[0028] Through the above steps, the rotating worm gear 203 drives the bidirectional screw 201 to rotate, driving the two sets of internal threaded supports 2 to move stably in opposite directions along the axial direction of the outer shell 1, thereby adjusting the contact state between the pneumatic vibrator 3 and the boiler heating surface pipes. The pneumatic vibrator 3 peels off the ash from the heating surface through rapping action, adapting to the ash cleaning needs of boilers of different specifications and providing convenient operation. This solves the problem that when cleaning power plant boilers, the heating surface space of the boiler is relatively narrow and long, and the staff cannot directly enter the heating surface to clean the dust. They can only use simple cleaning tools to clean the ash outside the boiler, which is not only inefficient but also labor-intensive and difficult to adapt to the heating surfaces of boilers of different specifications.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A ash removal device for the heating surface of a power plant boiler, comprising an outer shell (1), the outer shell (1) having a T-shaped structure, characterized in that: It also includes an internal threaded bracket (2) and a pneumatic vibrator (3). The internal threaded bracket (2) is provided in two sets. The two sets of internal threaded brackets (2) are symmetrically slidably connected to the inside of the shell (1). One end of the internal threaded bracket (2) passes through the shell (1) and extends to the outside. The pneumatic vibrator (3) is fixedly installed at one end of the internal threaded bracket (2). A bidirectional screw (201) is rotatably connected inside the shell (1). The bidirectional screw (201) passes through the internal threaded bracket (2) and is threadedly connected to it. A worm wheel (202) is fixedly installed on the periphery of the bidirectional screw (201). A worm (203) is rotatably connected inside the shell (1). The worm (203) meshes with the worm wheel (202).

2. The ash removal device for the heating surface of a power plant boiler according to claim 1, characterized in that: A rubber pad (301) is provided at one end of the pneumatic vibrator (3).

3. The ash removal device for the heating surface of a power plant boiler according to claim 1, characterized in that: It also includes an air supply assembly, which includes an air supply channel (401), an external interface (402), and a corrugated hose (403). The air supply channel (401) is provided inside the housing (1). An external interface (402) is fixedly installed at one end of the housing (1). The external interface (402) is connected to the air supply channel (401). The corrugated hose (403) is connected to the input end of the air pump. The other end of the corrugated hose (403) is connected to the air supply channel (401).

4. The ash removal device for the heating surface of a power plant boiler according to claim 1, characterized in that: It also includes an installation component, which includes a fixed bracket (501) and a connecting sleeve (502). The connecting sleeve (502) is slidably connected to the periphery of the housing (1), and the fixed bracket (501) is disposed on the periphery of the connecting sleeve (502). The fixed bracket (501) and the connecting sleeve (502) are rotatably connected.

5. The ash removal device for the heating surface of a power plant boiler according to claim 4, characterized in that: Multiple handles (6) are fixedly installed on the outer periphery of the outer shell (1), and the connection between the connecting sleeve (502) and the outer shell (1) and the connection between the connecting sleeve (502) and the fixed bracket (501) have a certain degree of damping.

6. The ash removal device for the heating surface of a power plant boiler according to claim 1, characterized in that: It also includes a locking assembly, which includes a turntable (701) and a lever (702). The turntable (701) is fixedly installed at one end of the worm gear (203), and the lever (702) is slidably connected inside the turntable (701).

7. The ash removal device for the heating surface of a power plant boiler according to claim 6, characterized in that: The locking assembly includes a spring (703) and a fixing hole (704). The spring (703) is fixedly installed between the lever (702) and the turntable (701). One end of the housing (1) is provided with multiple sets of fixing holes (704) evenly arranged around the axis of the turntable (701). One end of the lever (702) is located inside a set of fixing holes (704).

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