Sound wave ash removal device for heat exchanger of waste heat boiler
By introducing an acoustic ash removal device and a filtration mechanism into the waste heat boiler heat exchanger, the problems of reduced heat exchange efficiency and corrosion caused by ash accumulation have been solved, achieving efficient ash removal and environmental protection.
Patent Information
- Application Number
- CN202423202742.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing waste heat boiler heat exchangers lack effective ash removal devices, resulting in ash accumulation that affects heat exchange efficiency and may lead to corrosion. In particular, fine ash particles adhere to each other under electrostatic action and form dense ash accumulation, which affects the heat exchange effect over a long period of use.
An acoustic ash removal device for waste heat boiler heat exchangers was designed. It utilizes the sound energy generated by an air compressor to vibrate dust through a sound amplification tube, and combines it with a filtration mechanism to remove pollutants, thereby achieving effective removal of accumulated ash and preventing re-contamination.
It improves the efficiency of dust removal, prevents the reduction of heat exchange efficiency and corrosion caused by dust accumulation, reduces environmental pollution, and extends the service life of the equipment.
Smart Images
Figure CN223623479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste heat boiler heat exchanger technology, specifically to an acoustic ash removal device for waste heat boiler heat exchangers. Background Technology
[0002] Waste heat boiler heat exchangers are devices that heat or cool fluids through the principle of heat conduction. They utilize waste heat generated during industrial production (such as flue gas, exhaust gas, etc.) as a heat source, transferring heat to the working medium (such as water, steam, etc.) through the heat exchanger, thereby achieving energy recovery and utilization. Waste heat boilers have a large amount of ash that is prone to adhesion due to the uneven size of fly ash particles, especially fine ash particles smaller than 30 μm. These ash particles become charged due to electrostatic induction during flow and adhere to the tube wall, forming ash accumulation. The main problem is that ash accumulation can reduce the heat exchange efficiency of the boiler. According to the characteristics of flue gas dust, the ash accumulation is loose ash, and the generally attached dust particle size is 3-5 μm. Under the action of electrostatic force, it can reach a thickness of 20-50 μm. When it reaches a certain thickness, its weight exceeds gravity and it will fall off on its own. However, as the ash accumulates over time, it absorbs SO3 (sulfur trioxide) and water vapor in the flue gas and converts it into sulfates, which can form dense ash accumulation, thereby affecting heat exchange efficiency and causing corrosion to the tubes. Existing waste heat boiler heat exchangers do not have ash removal devices, which will affect the heat exchange effect when used for a long time. Utility Model Content
[0003] The purpose of this invention is to provide an acoustic ash removal device for waste heat boiler heat exchangers to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an acoustic cleaning device for a waste heat boiler heat exchanger, including a base, a cleaning mechanism on the top of the base, and a filter mechanism on the right side of the cleaning mechanism;
[0005] The dust removal mechanism includes a heat exchanger body, which is fixedly connected to the top of the base. A connecting pipe is fixedly connected inside the heat exchanger body, a conveying pipe is fixedly connected to the top of the connecting pipe, a pipeline is fixedly connected to the rear side of the conveying pipe, a first solenoid valve is fixedly connected to the periphery of the pipeline, a sound generator is fixedly connected to the right side of the pipeline, a filter pressure reducing valve is fixedly connected to the right side of the sound generator, an air compressor is fixedly connected to the right side of the filter pressure reducing valve, an air supply pipe is fixedly connected to the rear side of the conveying pipe, the front right end of the air supply pipe is fixedly connected to the rear side of the air compressor, a second solenoid valve is fixedly connected to the periphery of the air supply pipe, a megaphone is fixedly connected to the bottom of the connecting pipe, and a load-bearing frame is fixedly connected to the periphery of the megaphone.
[0006] Preferably, the air compressor is fixedly connected to the top of the base, and the acoustic energy generator is fixedly connected to the top of the base, so that the air delivered by the air compressor can be converted into acoustic energy under the action of the acoustic energy generator.
[0007] Preferably, the support frame is rectangular and is fixedly connected to the inside of the heat exchanger body, which facilitates the fixation of the loudspeaker under the action of the support frame.
[0008] Preferably, four sets of the connecting pipe, the sound amplification tube, and the load-bearing frame are provided. The four sets of the connecting pipe, the sound amplification tube, and the load-bearing frame are respectively arranged inside the conveying pipe, which facilitates the improvement of the cleaning effect inside the heat exchanger body by setting four sets.
[0009] Preferably, the filtration mechanism includes an exhaust pipe, which is fixedly connected to the right side of the heat exchanger body. A filter plate is slidably connected inside the exhaust pipe. A support frame is fixedly connected to the front side of the exhaust pipe. A connecting rod is fixedly connected to the front side of the support frame. A pull ring is slidably connected to the periphery of the connecting rod. An insertion rod is fixedly connected to the rear side of the pull ring. The insertion rod is inserted into the filter plate. A spring is sleeved around the insertion rod.
[0010] Preferably, the insertion rod passes through the inside of the support frame, and slots are respectively opened inside the filter plate and the support frame, with the two slots corresponding to each other. The insertion rod is inserted into the slot, which facilitates the limiting of the filter plate under the action of the insertion rod.
[0011] Preferably, the front side of the spring is fixedly connected to the rear side of the pull ring, and the rear side of the spring is fixedly connected to the front side of the support frame, so that the insertion rod can be kept in a stable state under the action of the spring.
[0012] Compared with the prior art, this utility model provides an acoustic ash removal device for waste heat boiler heat exchangers, which has the following beneficial effects:
[0013] 1. This waste heat boiler heat exchanger acoustic cleaning device, through its cleaning mechanism, opens the first solenoid valve and closes the second solenoid valve when ash accumulates inside the heat exchanger during use. This activates the air compressor, allowing air to pass through a filter and pressure reducing valve into the acoustic generator, generating acoustic energy. This energy is then transported through a pipeline to the delivery pipe and, through a connecting pipe, to the amplifier tube. The amplifier tube vibrates the dust adhering to the inside of the heat exchanger, and its placement around the heat exchanger body enhances both the cleaning effect and efficiency. Closing the first solenoid valve and opening the second solenoid valve further transmits air through the air compressor to the delivery pipe and then through the connecting pipe to the amplifier tube, further removing dust and carbon deposits from the equipment surface. This impact effectively loosens and peels away the accumulated ash, achieving the desired cleaning effect.
[0014] 2. This waste heat boiler heat exchanger acoustic cleaning device, through its filtration mechanism, allows heated air to exit through the right side of the heat exchanger body during operation. The gas then enters the exhaust pipe and is filtered by the filter plates. The exhaust gas from the boiler heat exchanger may contain pollutants such as particulate matter, sulfur dioxide, and nitrogen oxides. Filtration effectively removes these pollutants, reducing air pollution and protecting the environment. Furthermore, the filter plates are limited by insert rods, springs, and pull rings, facilitating installation and disassembly and improving cleaning efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the left-side structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the dust removal mechanism.
[0019] Figure 4 This is a schematic diagram of the rear structure of the heat exchanger body;
[0020] Figure 5 This is a schematic diagram of the inner structure of the delivery pipe;
[0021] Figure 6 This is a schematic diagram of the filter mechanism.
[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the filter plate.
[0023] In the diagram: 1. Base; 2. Dust removal mechanism; 3. Filtering mechanism; 21. Heat exchanger body; 22. Connecting pipe; 23. Delivery pipe; 24. Gas delivery pipe; 25. First solenoid valve; 26. Pipeline; 27. Sound generator; 28. Filter pressure reducing valve; 29. Air compressor; 291. Second solenoid valve; 292. Loudspeaker; 293. Support frame; 31. Exhaust pipe; 32. Filter plate; 33. Insert rod; 34. Support frame; 35. Spring; 36. Pull ring; 37. Connecting rod. Detailed Implementation
[0024] 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.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] This utility model provides the following technical solution:
[0027] Example 1
[0028] Please see Figure 1-7 This utility model provides a technical solution: a sonic cleaning device for a waste heat boiler heat exchanger, including a base 1, a cleaning mechanism 2 on the top of the base 1, and a filter mechanism 3 on the right side of the cleaning mechanism 2;
[0029] The dust removal mechanism 2 includes a heat exchanger body 21, which is fixedly connected to the top of the base 1. A connecting pipe 22 is fixedly connected inside the heat exchanger body 21. A conveying pipe 23 is fixedly connected to the top of the connecting pipe 22. A pipe 26 is fixedly connected to the rear side of the conveying pipe 23. A first solenoid valve 25 is fixedly connected to the periphery of the pipe 26. A sound energy device 27 is fixedly connected to the right side of the pipe 26. A filter pressure reducing valve 28 is fixedly connected to the right side of the sound energy device 27. An air compressor 29 is fixedly connected to the right side of the filter pressure reducing valve 28. An air supply pipe 24 is fixedly connected to the rear side of the conveying pipe 23. The front right end of the air supply pipe 24 is fixedly connected to the rear side of the air compressor 29. A second solenoid valve 291 is fixedly connected to the periphery of the air supply pipe 24. A megaphone 292 is fixedly connected to the bottom of the connecting pipe 22. A load-bearing frame 293 is fixedly connected to the periphery of the megaphone 292.
[0030] The air compressor 29 is fixedly connected to the top of the base 1, and the sound energy device 27 is fixedly connected to the top of the base 1, so that the air delivered by the air compressor 29 can be converted into sound energy under the action of the sound energy device 27. The support frame 293 is rectangular and is fixedly connected to the inside of the heat exchanger body 21, so that the sound amplifier 292 can be fixed under the action of the support frame 293. There are four sets of connecting pipes 22, sound amplifier 292 and support frame 293. The four sets of connecting pipes 22, sound amplifier 292 and support frame 293 are respectively set inside the conveying pipe 23, so that the cleaning effect inside the heat exchanger body 21 can be improved by setting four sets.
[0031] Example 2
[0032] Please see Figure 1-7 Furthermore, based on Embodiment 1, the filter mechanism 3 includes an exhaust pipe 31, which is fixedly connected to the right side of the heat exchanger body 21. A filter plate 32 is slidably connected inside the exhaust pipe 31. A support frame 34 is fixedly connected to the front side of the exhaust pipe 31. A connecting rod 37 is fixedly connected to the front side of the support frame 34. A pull ring 36 is slidably connected to the outer side of the connecting rod 37. An insertion rod 33 is fixedly connected to the rear side of the pull ring 36. The insertion rod 33 is inserted into the filter plate 32. A spring 35 is sleeved around the insertion rod 33.
[0033] The insertion rod 33 passes through the inside of the support frame 34. The filter plate 32 and the support frame 34 are respectively provided with slots, and the two slots correspond to each other. The insertion rod 33 is inserted into the slot, which facilitates the limiting of the filter plate 32 under the action of the insertion rod 33. The front side of the spring 35 is fixedly connected to the rear side of the pull ring 36, and the rear side of the spring 35 is fixedly connected to the front side of the support frame 34, which facilitates the insertion rod 33 to be in a stable state under the action of the spring 35.
[0034] In actual operation, when this device is in use, and dust accumulates inside the heat exchanger body 21, the first solenoid valve 25 is opened and the second solenoid valve 291 is closed, causing the air compressor 29 to operate. Air then passes through the filter pressure reducing valve 28 and enters the acoustic energy generator 27, generating acoustic energy. This acoustic energy is then transported through pipe 26 to the delivery pipe 23 and through connecting pipe 22 to the sound amplification tube 292. Under the action of the sound amplification tube 292, the dust adhering inside the heat exchanger body 21 is vibrated. Furthermore, the sound amplification tube 292 is used to vibrate the dust adhering inside the heat exchanger body 21. The inner perimeter of the device body 21 not only improves the dust removal effect but also increases the dust removal efficiency. The first solenoid valve 25 is closed, and the second solenoid valve 291 is opened. Air is then delivered to the delivery pipe 23 through the air compressor 29 via the air supply pipe 24. The air is then delivered to the sound amplifier 292 through the connecting pipe 22, which further removes dust and carbon deposits from the surface of the equipment. This impact action can effectively loosen and peel off the accumulated dust, thereby achieving the dust removal effect. The filter pressure reducing valve 28 can adjust the air pressure during use to keep the pressure within a suitable range.
[0035] During the operation of the heat exchanger body 21, the heated air is discharged through the right side of the heat exchanger body 21 and enters the exhaust pipe 31. Under the action of the filter plate 32, the air is filtered and discharged through the exhaust pipe 31. When the boiler heat exchanger body 21 is working, the discharged air may contain some pollutants, such as particulate matter, sulfur dioxide, nitrogen oxides, etc. Filtration can effectively remove these pollutants, reduce air pollution, and thus protect the environment. When it is necessary to remove the filter plate 32 for cleaning, pull the pull ring 36 forward, so that the pull ring 36 drives the insertion rod 33 to move around the connecting rod 37 and deforms the spring 35. This releases the insertion rod 33 from the limit of the filter plate 32, allowing the filter plate 32 to be removed for cleaning.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A waste heat boiler heat exchanger acoustic cleaning device, comprising a base (1), characterized in that: The base (1) is provided with a dust removal mechanism (2) on the top, and a filter mechanism (3) is provided on the right side of the dust removal mechanism (2). The dust removal mechanism (2) includes a heat exchanger body (21), which is fixedly connected to the top of the base (1). A connecting pipe (22) is fixedly connected inside the heat exchanger body (21). A conveying pipe (23) is fixedly connected to the top of the connecting pipe (22). A pipe (26) is fixedly connected to the rear side of the conveying pipe (23). A first solenoid valve (25) is fixedly connected to the periphery of the pipe (26). A sound energy device (27) is fixedly connected to the right side of the pipe (26). The sound energy device (27) is located on the right side of the pipe (26). A filter pressure reducing valve (28) is fixedly connected to the side. An air compressor (29) is fixedly connected to the right side of the filter pressure reducing valve (28). An air supply pipe (24) is fixedly connected to the rear side of the delivery pipe (23). The front side of the right end of the air supply pipe (24) is fixedly connected to the rear side of the air compressor (29). A second solenoid valve (291) is fixedly connected to the periphery of the air supply pipe (24). A loudspeaker (292) is fixedly connected to the bottom of the connecting pipe (22). A load-bearing frame (293) is fixedly connected to the periphery of the loudspeaker (292).
2. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 1, characterized in that: The air compressor (29) is fixedly connected to the top of the base (1), and the acoustic device (27) is fixedly connected to the top of the base (1).
3. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 1, characterized in that: The load-bearing frame (293) is rectangular and is fixedly connected to the inside of the heat exchanger body (21).
4. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 1, characterized in that: The connecting pipe (22), the sound amplification tube (292) and the load-bearing frame (293) are provided in four sets, and the four sets of the connecting pipe (22), the sound amplification tube (292) and the load-bearing frame (293) are respectively provided inside the conveying pipe (23).
5. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 1, characterized in that: The filtration mechanism (3) includes an exhaust pipe (31), which is fixedly connected to the right side of the heat exchanger body (21). A filter plate (32) is slidably connected inside the exhaust pipe (31). A support frame (34) is fixedly connected to the front side of the exhaust pipe (31). A connecting rod (37) is fixedly connected to the front side of the support frame (34). A pull ring (36) is slidably connected to the outer side of the connecting rod (37). An insertion rod (33) is fixedly connected to the rear side of the pull ring (36). The insertion rod (33) is inserted into the filter plate (32). A spring (35) is sleeved around the insertion rod (33).
6. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 5, characterized in that: The insertion rod (33) passes through the inside of the support frame (34). The filter plate (32) and the support frame (34) are respectively provided with slots, and the two slots correspond to each other. The insertion rod (33) is inserted into the slot.
7. The acoustic ash removal device for waste heat boiler heat exchangers according to claim 5, characterized in that: The front side of the spring (35) is fixedly connected to the rear side of the pull ring (36), and the rear side of the spring (35) is fixedly connected to the front side of the support frame (34).