Sound wave device for denitration catalyst layer

Abstract

The utility model relates to the technical field of denitration equipment, in particular to a sound wave device for a denitration catalyst layer, which comprises a machine shell, a first groove is arranged on the outer wall of the machine shell, a second groove is arranged on the side wall of the first groove, and a sound wave mechanism is arranged on the outer wall of the machine shell. One end of the sound wave main body is fixedly connected with a loudspeaker, the interior of the sound wave main body is movably connected with a diaphragm, the other end of the sound wave main body is fixedly provided with a breathing port, the outer wall of the sound wave main body is fixedly connected with a fixing block, and the lower surface of the fixing block is fixedly provided with a connecting column; and a first baffle is fixedly installed at the other end of the connecting column, a limiting plate is fixedly installed on the outer wall of the connecting column, and a second baffle is movably connected to the outer wall of the connecting column. The sound wave device is reasonable in structure, the whole sound wave device can be detached, regular cleaning and fault replacement are facilitated, and the service life of the sound wave device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of denitration equipment or flue gas treatment equipment, and in particular to a sonic wave device for a denitration catalyst layer. Background Art

[0002] The common SCR (Selective Catalytic Reduction) soot blowing technology of coal-fired units mainly uses sonic soot blowing. The existing sonic soot blower mainly converts the energy carried by compressed air into high-intensity sound waves by a sonic wave generator head. The sonic wave causes the ash particles and air molecules to vibrate through the force of the sound waves, destroying and preventing the ash particles from combining on the catalyst surface, so that they are in a suspended fluidized state so that they can be carried away by the flue gas or its own gravity. However, in the existing sonic wave device for the denitrification catalyst layer, a lot of dust will gather in the loudspeaker part of the sonic wave device during the denitrification process. Some of the dust contains oil stains, which will corrode the loudspeaker if it adheres to the inside of the loudspeaker for a long time, greatly shortening the service life of the loudspeaker. In addition, since the sonic wave device is usually fixedly installed inside the reactor, it is very difficult to clean and replace the loudspeaker regularly. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a sonic wave device for a denitration catalyst layer.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sound wave device for a denitration catalyst layer, comprising a machine housing, the outer wall of the machine housing is provided with a first groove, the side wall of the first groove is provided with a second groove, a spring is fixedly installed on the side of the second groove, the other end of the spring is fixedly connected to a limiting block, a sound wave mechanism is movably installed on the outer wall of the machine housing, the sound wave mechanism comprises a sound wave body, one end of the sound wave body is fixedly connected to a loudspeaker, the loudspeaker is located inside the machine housing, a diaphragm is movably connected inside the sound wave body, a third cavity is provided inside the sound wave body, the third cavity is located on the left side of the diaphragm, and the inside of the sound wave body is opened. A first cavity is provided, the first cavity is located on the right side of the diaphragm, a second cavity is opened inside the sound wave body, the second cavity is located on the right side of the diaphragm, the second cavity is connected with the loudspeaker, a breathing port is fixedly installed on the other end of the sound wave body, the breathing port is connected with the third cavity, a fixed block is fixedly connected to the outer wall of the sound wave body, a connecting column is fixedly installed on the lower surface of the fixing block, a first baffle is fixedly installed on the other end of the connecting column, a limiting plate is fixedly installed on the outer wall of the connecting column, a second baffle is movably connected to the outer wall of the connecting column, the second baffle is located between the limiting plate and the first baffle, and the connecting column, the limiting plate, the first baffle and the second baffle are all located inside the first groove.

[0005] As a further description of the above technical solution:

[0006] A load-bearing plate is fixedly installed on the outer wall of the machine shell, and the load-bearing plate is located below the sound wave body. A fixing plate and a motor are fixedly installed on the upper surface of the load-bearing plate. A third groove is opened on the upper surface of the fixing plate. A clamping block is movably connected to the upper surface of the fixing plate. There are multiple clamping blocks, and the lower ends of the multiple clamping blocks are located inside the third groove. A double-threaded screw is movably connected inside the third groove. The double-threaded screw is threadedly connected to the lower end of the clamping block, and one end of the double-threaded screw is fixedly connected to the output end of the motor.

[0007] As a further description of the above technical solution:

[0008] An interface is fixedly installed on the lower end surface of the sound wave body, and the interface is connected to the second cavity. An air compressor is fixedly installed on the outer wall of the machine shell. The output end of the air compressor is connected to a hose, and the other end of the hose is fixedly connected to the interface.

[0009] As a further description of the above technical solution:

[0010] A top cover is fixedly mounted on the upper surface of the machine housing, a fan is fixedly mounted on the lower surface of the top cover, and the number of the fans is plural. A catalyst plate is fixedly mounted inside the machine housing, and the catalyst plate is a porous structure.

[0011] As a further description of the above technical solution:

[0012] A second sealing ring is fixedly installed at the connection between the top cover and the machine housing, and a first sealing ring is fixedly installed at the connection between the sound wave body and the machine housing.

[0013] As a further description of the above technical solution:

[0014] An air inlet is fixedly mounted on the outer wall of the machine housing, and the air inlet is communicated with the interior of the machine housing.

[0015] As a further description of the above technical solution:

[0016] The lower surface of the machine housing is fixedly provided with supporting feet, and the number of the supporting feet is multiple.

[0017] As a further description of the above technical solution:

[0018] A funnel opening is fixedly mounted on the lower surface of the machine housing, and an exhaust port is fixedly mounted on the lower surface of the funnel opening.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, the sonic wave device for the denitration catalyst layer, through the combination of a fixed block, a connecting column, a first baffle, a second baffle, a spring and a limit block, controls the different lengths of the extension of the connecting column to disassemble and assemble the sonic wave equipment during use. Compared with the existing sonic wave devices, which are difficult to disassemble and assemble during use, and cannot be cleaned regularly, and are also extremely difficult to replace when the sonic wave equipment needs to be replaced, the sonic wave device for the denitration catalyst layer can quickly disassemble and assemble the sonic wave equipment through the combination of a fixed block, a connecting column, a first baffle, a second baffle, a spring and a limit block, and can regularly clean the sonic wave equipment to extend the service life of the sonic wave equipment.

[0021] 2. Compared with the prior art, the sonic wave device for the denitration catalyst layer, through the combination of a fan, a funnel and an exhaust port, can drive the air flow in the device through the operation of the fan during the denitration operation, which can speed up the process of the waste generated by the denitration being discharged from the reactor, and can also avoid the accumulation of reaction waste on the catalyst plate to reduce the catalytic efficiency. Compared with the existing device that simply relies on the air inlet to introduce reaction gas to speed up the process of the waste generated by the denitration being discharged from the reactor, the effect provided is very limited, and it is difficult to process the reaction waste accumulated on the surface of the catalyst plate. The sonic wave device for the denitration catalyst layer can drive the air flow in the device through the operation of the fan during the denitration operation, which can speed up the process of the waste generated by the denitration being discharged from the reactor, and can also avoid the accumulation of reaction waste on the catalyst plate to reduce the catalytic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a sonic wave device for a denitration catalyst layer proposed by the utility model;

[0023] Figure 2 This is a cross-sectional view of the overall structure of a sonic wave device for a denitration catalyst layer proposed by the utility model;

[0024] Figure 3 This is a partial structural cross-sectional view of a sonic wave device for a denitration catalyst layer proposed by the utility model;

[0025] Figure 4 The utility model proposes a sonic wave device for a denitration catalyst layer. Figure 2 A magnified view of the structure at center A;

[0026] Figure 5 The utility model proposes a sonic wave device for a denitration catalyst layer. Figure 3 A magnified view of the structure at B in the middle;

[0027] Figure 6 The utility model proposes a sonic wave device for a denitration catalyst layer. Figure 2 Enlarged view of the structure at C in the middle.

[0028] Legend:

[0029] 1. Machine housing; 2. Sound wave mechanism; 201. Sound wave body; 202. First cavity; 203. Second cavity; 204. Diaphragm; 205. Third cavity; 206. Breathing port; 207. Fixed block; 208. Connecting column; 209. First baffle; 210. Second baffle; 211. First sealing ring; 212. Interface; 213. Loudspeaker; 214. Limiting plate; 3. First groove; 4. Second groove; 5. Spring; 6. Limiting block; 7. Load-bearing plate; 8. Fixed plate; 9. Motor; 10. Third groove; 11. Double-threaded screw; 12. Clamping block; 13. Air compressor; 14. Hose; 15. Top cover; 16. Fan; 17. Catalyst plate; 18. Air inlet; 19. Support foot; 20. Second sealing ring; 21. Funnel mouth; 22. Exhaust port. DETAILED DESCRIPTION

[0030] Reference Figure 1-6The utility model provides a sound wave device for a denitration catalyst layer: comprising a machine housing 1, an outer wall of the machine housing 1 is provided with a first groove 3, a side wall of the first groove 3 is provided with a second groove 4, a spring 5 is fixedly installed on the side of the second groove 4, the other end of the spring 5 is fixedly connected to a limiting block 6, a sound wave mechanism 2 is movably installed on the outer wall of the machine housing 1, the sound wave mechanism 2 comprises a sound wave main body 201, one end of the sound wave main body 201 is fixedly connected to a loudspeaker 213, the loudspeaker 213 is located inside the machine housing 1, a diaphragm 204 is movably connected inside the sound wave main body 201, the diaphragm 204 is a high-strength titanium metal diaphragm, a third cavity 205 is provided inside the sound wave main body 201, and a third cavity 206 is provided inside the third cavity 207. The third cavity 205 is located on the left side of the diaphragm 204, the first cavity 202 is opened inside the sound wave body 201, the first cavity 202 is located on the right side of the diaphragm 204, the second cavity 203 is opened inside the sound wave body 201, the second cavity 203 is located on the right side of the diaphragm 204, the second cavity 203 is connected to the loudspeaker 213, and the other end of the sound wave body 201 is fixedly installed with a breathing port 206, and the breathing port 206 is connected to the third cavity 205. The sound wave cleaning uses compressed air as the energy source of the sound wave. The high-strength titanium metal diaphragm self-excites and oscillates under the action of the compressed air source, and resonates in the first cavity, converting the potential energy of the compressed air into low-frequency sound energy, and transmitting the sound energy through the air medium. The sound waves are delivered to the corresponding dust accumulation points, so that the sound waves have the effect of "acoustic fatigue" on the ash. Due to the repeated action of the sound wave oscillation, the extrusion cyclic changing load applied to the ash reaches a certain number of cyclic stresses, and the structure of the ash is destroyed due to fatigue. Then, due to gravity or fluid medium, the ash is removed from the surface of the attachment body to achieve the effect of cleaning. The outer wall of the sound wave body 201 is fixedly connected to a fixed block 207, and a connecting column 208 is fixedly installed on the lower surface of the fixed block 207. The other end of the connecting column 208 is fixedly installed with a first baffle 209. The outer wall of the connecting column 208 is fixedly installed with a limiting plate 214. The outer wall of the connecting column 208 is movably connected to a second baffle 210. The second baffle 210 is located at Between the limiting plate 214 and the first baffle plate 209, the connecting column 208, the limiting plate 214, the first baffle plate 209 and the second baffle plate 210 are all located inside the first groove 3. When in use, the fixing block 207 is moved toward the direction close to the first groove 3. When it is moved until the limiting block 6 is located between the first baffle plate 209 and the second baffle plate 210, the installation of the sonic wave mechanism 2 is completed. When the sonic wave mechanism 2 needs to be removed, the fixing block 207 is continued to be moved toward the direction close to the first groove 3 until the limiting block 6 is located between the second baffle plate 210 and the fixing block 207. At this time, the fixing block 207 is moved toward the direction away from the first groove 3. At this time, the sonic wave mechanism 2 can be removed from the outer wall of the machine housing 1.

[0031] The outer wall of the machine housing 1 is fixedly installed with a load-bearing plate 7, and the load-bearing plate 7 is located below the acoustic wave body 201. A fixing plate 8 and a motor 9 are fixedly installed on the upper surface of the load-bearing plate 7. A third groove 10 is opened on the upper surface of the fixing plate 8. A clamping block 12 is movably connected to the upper surface of the fixing plate 8. There are multiple clamping blocks 12. The lower ends of the multiple clamping blocks 12 are located inside the third groove 10. A double-threaded screw rod 11 is movably connected inside the third groove 10. The double-threaded screw rod 11 is connected to the lower end of the clamping block 12 by threads. One end of the double-threaded screw rod 11 is connected to the motor 9. The output end of the sonic wave mechanism 2 is fixedly connected. When the sonic wave mechanism 2 is installed on the outer wall of the machine casing 1, the starting motor 9 drives the double-threaded screw 11, and then drives the clamping block 12 to clamp the sonic wave mechanism 2 to prevent the sonic wave mechanism 2 from shaking when working due to excessive gravity at one end. The lower end surface of the sonic wave body 201 is fixedly installed with an interface 212, and the interface 212 is connected to the second cavity 203. The outer wall of the machine casing 1 is fixedly installed with an air compressor 13, and the output end of the air compressor 13 is connected with a hose 14, and the other end of the hose 14 is fixedly connected to the interface 212.

[0032] A top cover 15 is fixedly installed on the upper surface of the machine casing 1, and a fan 16 is fixedly installed on the lower surface of the top cover 15. There are multiple fans 16, and the fan 16 can clean the dust on the surface of the catalyst plate. A catalyst plate 17 is fixedly installed inside the machine casing 1. The catalyst plate 17 has a porous structure, which is convenient for better catalytic effect. A second sealing ring 20 is fixedly installed at the connection between the top cover 15 and the machine casing 1, and a first sealing ring 211 is fixedly installed at the connection between the sonic body 201 and the machine casing 1 to prevent the exhaust gas generated when the pin is out of stock from directly contacting the air. An air inlet 18 is fixedly installed on the outer wall of the machine casing 1, and the air inlet 18 is connected to the inside of the machine casing 1.

[0033] A plurality of legs 19 are fixedly mounted on the lower surface of the machine housing 1 . A funnel opening 21 is fixedly mounted on the lower surface of the machine housing 1 . An exhaust port 22 is fixedly mounted on the lower surface of the funnel opening 21 .

[0034] Working principle: when the sonic wave mechanism 2 needs to be installed, move the fixed block 207 in the direction close to the first groove 3. When it moves to the limit block 6 and is located between the first baffle 209 and the second baffle 210, the sonic wave mechanism 2 is installed. Start the motor 9 to drive the double-threaded screw 11, and then drive the clamping block 12 to clamp the sonic wave mechanism 2. When the sonic wave mechanism 2 needs to be removed, continue to move the fixed block 207 in the direction close to the first groove 3 until the limit block 6 is located between the second baffle 210 and the fixed block 207. At this time, move the fixed block 207 in the direction away from the first groove 3. At this time, the sonic wave mechanism 2 can be removed from the outer wall of the machine housing 1.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sonic wave device for a denitration catalyst layer, comprising a machine housing (1), characterized in that: The outer wall of the machine housing (1) is provided with a first groove (3), the side wall of the first groove (3) is provided with a second groove (4), a spring (5) is fixedly installed on the side of the second groove (4), the other end of the spring (5) is fixedly connected to a limit block (6), and a sound wave mechanism (2) is movably installed on the outer wall of the machine housing (1), the sound wave mechanism (2) comprises a sound wave body (201), one end of the sound wave body (201) is fixedly connected to a loudspeaker (213), and the The loudspeaker (213) is located inside the machine housing (1); the interior of the sound wave body (201) is movably connected to a diaphragm (204); a third cavity (205) is opened inside the sound wave body (201); the third cavity (205) is located on the left side of the diaphragm (204); a first cavity (202) is opened inside the sound wave body (201); the first cavity (202) is located on the right side of the diaphragm (204); a third cavity (205) is opened inside the sound wave body (201); The second cavity (203) is located on the right side of the diaphragm (204), the second cavity (203) is connected to the loudspeaker (213), the other end of the sound wave body (201) is fixedly installed with a breathing port (206), the breathing port (206) is connected to the third cavity (205), the outer wall of the sound wave body (201) is fixedly connected with a fixed block (207), the lower surface of the fixed block (207) is fixedly installed with a connecting column (208), the A first baffle (209) is fixedly mounted on the other end of the connecting column (208); a limiting plate (214) is fixedly mounted on the outer wall of the connecting column (208); a second baffle (210) is movably connected to the outer wall of the connecting column (208); the second baffle (210) is located between the limiting plate (214) and the first baffle (209); and the connecting column (208), the limiting plate (214), the first baffle (209) and the second baffle (210) are all located inside the first groove (3).

2. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: A load-bearing plate (7) is fixedly installed on the outer wall of the machine housing (1), and the load-bearing plate (7) is located below the sonic wave mechanism (2). A fixing plate (8) and a motor (9) are fixedly installed on the upper surface of the load-bearing plate (7). A third groove (10) is provided on the upper surface of the fixing plate (8). A clamping block (12) is movably connected to the upper surface of the fixing plate (8). There are multiple clamping blocks (12). The lower ends of the multiple clamping blocks (12) are located inside the third groove (10). A double-threaded screw rod (11) is movably connected inside the third groove (10). The double-threaded screw rod (11) is connected to the lower end of the clamping block (12) by a thread, and one end of the double-threaded screw rod (11) is fixedly connected to the output end of the motor (9).

3. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: An interface (212) is fixedly mounted on the lower end surface of the acoustic wave body (201), and the interface (212) is communicated with the second cavity (203). An air compressor (13) is fixedly mounted on the outer wall of the machine housing (1), and an output end of the air compressor (13) is connected to a hose (14), and the other end of the hose (14) is fixedly connected to the interface (212).

4. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: A top cover (15) is fixedly mounted on the upper surface of the machine housing (1), a fan (16) is fixedly mounted on the lower surface of the top cover (15), and the number of the fans (16) is multiple. A catalyst plate (17) is fixedly mounted inside the machine housing (1), and the catalyst plate (17) is a porous structure.

5. The acoustic wave device for a denitration catalyst layer according to claim 4, characterized in that: A second sealing ring (20) is fixedly installed at the connection between the top cover (15) and the machine housing (1), and a first sealing ring (211) is fixedly installed at the connection between the acoustic wave body (201) and the machine housing (1).

6. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: An air inlet (18) is fixedly mounted on the outer wall of the machine housing (1), and the air inlet (18) is communicated with the interior of the machine housing (1).

7. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: A support foot (19) is fixedly mounted on the lower surface of the machine housing (1), and the number of the support feet (19) is multiple.

8. The acoustic wave device for a denitration catalyst layer according to claim 1, characterized in that: A funnel opening (21) is fixedly mounted on the lower surface of the machine housing (1), and an exhaust port (22) is fixedly mounted on the lower surface of the funnel opening (21).

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