Novel double-drum boiler
By introducing a cleaning and collection mechanism into the waste heat boiler, the problem of reduced heat conduction efficiency caused by impurity deposition is solved, achieving efficient boiler operation and extending equipment life.
Patent Information
- Application Number
- CN202422928848.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Impurities in the exhaust gas from the waste heat boiler are deposited on the surface of the heat exchanger, resulting in reduced heat transfer efficiency and affecting the efficiency of steam or hot water generation.
A new double-drum boiler was designed, which included a cleaning mechanism and a collecting mechanism. The cleaning mechanism filtered impurities through a filter mesh, and the hollow ventilation pipe drove the brush cleaning rod to rotate to remove dust. The collecting mechanism collected and discharged impurities to ensure stable operation of the boiler.
It improves heat exchange efficiency, extends equipment service life, reduces maintenance and cleaning work, and ensures the normal operation and efficient operation of the boiler.
Smart Images
Figure CN223484258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste heat boiler technology, specifically a novel double-drum boiler. Background Technology
[0002] A waste heat boiler is a device that utilizes high-temperature exhaust gas or waste heat from industrial processes or generator sets to produce steam or hot water, aiming to improve energy efficiency and reduce energy consumption. Its working principle involves transferring heat from the exhaust gas or waste heat to water or a working fluid through a heat exchanger, generating steam or hot water for power generation, process heating, or heating. Its main components include a heat exchanger, steam drum, economizer, and superheater.
[0003] The exhaust gas entering a waste heat boiler contains impurities because it originates from industrial production or combustion processes, which inevitably generate various byproducts. Fuel combustion releases unburned particulate matter, ash, sulfides, nitrogen oxides, and other impurities; high-temperature exhaust gases from industrial production also carry dust, oil mist, or chemical reaction products. These impurities enter the waste heat boiler with the exhaust gas and deposit on the heat exchanger surface, forming ash or scale layers. This reduces heat transfer efficiency, leading to a decrease in boiler heat exchange performance and affecting the generation efficiency of steam or hot water.
[0004] In view of this, we propose a new type of double-drum boiler. Utility Model Content
[0005] The purpose of this utility model is to provide a novel double-drum boiler, which solves the problem of impurities in the exhaust gas depositing on the surface of the heat exchanger and reducing the heat transfer efficiency.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A novel double-drum boiler includes a support frame on which the boiler is fixedly connected. A collection box is provided on the top of the support frame. The boiler's air inlet section is equipped with a cleaning mechanism and a collection mechanism. The cleaning mechanism is used to clean incoming dust and impurities, and the collection mechanism is used to collect falling dust and impurities in a timely manner.
[0008] Preferably, the cleaning mechanism includes an air inlet pipe, a central connecting frame fixedly connected to the outer wall of the air inlet pipe, one end of a spring fixedly connected to the inner wall of the central connecting frame, a filter screen fixedly connected to the other end of the spring, one end of a telescopic tube fixedly connected to the outer wall of the filter screen, the other end of the telescopic tube fixedly connected to the inner wall of the central connecting frame, one end of a bypass air pipe fixedly connected to the bottom of the central connecting frame, a connector fixedly connected to the other end of the bypass air pipe, a hollow ventilation pipe rotatably connected to the inner wall of the connector, a positioning support fixedly connected to the inner wall of the air inlet pipe, an impeller fixedly connected to the inner wall of the hollow ventilation pipe, a hollow cleaning rod rotatably connected to the outer wall of the hollow ventilation pipe, bristles fixedly connected to the outer wall of the hollow cleaning rod, and a nozzle fixedly connected to the inner wall of the hollow cleaning rod.
[0009] Preferably, the outer wall of the filter element is piston-connected to the inner wall of the central connecting frame, and the inner wall of the positioning support element is provided with ball bearings.
[0010] Preferably, the outer wall of the hollow ventilation duct penetrates the inner wall of the positioning support, and two brush bristles are provided, which are installed symmetrically.
[0011] Preferably, the inner wall of the hollow cleaning rod is a cavity, and the inner wall of the hollow cleaning rod is connected to the inner wall of the hollow ventilation duct, so that the air in the hollow ventilation duct can enter the inner wall of the hollow cleaning rod.
[0012] Preferably, the collection mechanism includes a discharge pipe, which is fixedly connected to the outer wall of the hollow cleaning rod. A collection frame is fixedly connected to the outer wall of the discharge pipe, and a fixed connector is rotatably connected to the outer wall of the discharge pipe. A sewage pipe is fixedly connected to the inner wall of the fixed connector.
[0013] Preferably, the outer wall of the drain pipe is fixedly connected to the inner wall of the air inlet pipe, and the inner wall of the collection frame is connected to the inner wall of the discharge pipe.
[0014] By employing the above technical solution, this utility model provides a novel double-drum boiler. It possesses at least the following beneficial effects:
[0015] (1) This utility model has a cleaning mechanism. It heats the boiler by inputting exhaust gas into the intake pipe. When the exhaust gas passes through the filter screen on the intake pipe, the dust and impurities in the exhaust gas will be filtered by the filter screen, reducing the accumulation of impurities inside the boiler, thereby improving the heat exchange efficiency, extending the service life of the equipment, reducing maintenance and cleaning work, and ensuring the stable and efficient operation of the boiler.
[0016] (2) This utility model is equipped with a cleaning mechanism. The hollow ventilation pipe drives the hollow cleaning rod to rotate, and the hollow cleaning rod drives the brush to rotate to clean the filter screen. High-pressure air enters the hollow cleaning rod through the hollow ventilation pipe and is then sprayed out through the nozzle to blow the filter screen. The high-pressure air can effectively flush and remove the dust and impurities accumulated on the surface of the filter screen, keep the filter screen clean, and avoid the filtration efficiency from decreasing or clogging due to excessive accumulation of impurities, thereby maintaining the smooth flow of exhaust gas and the normal operation of the boiler.
[0017] (3) By setting up a collection mechanism, the dust and impurities blown out by the nozzle on the hollow cleaning rod will enter the collection frame, then enter the discharge pipe, and then be discharged into the collection box through the fixed connector and the sewage pipe. This ensures that the dust and impurities removed from the filter screen are effectively collected, preventing them from re-entering the boiler system and maintaining the cleanliness and normal operation of the boiler. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic cross-sectional view of the intake pipe in this utility model;
[0021] Figure 3 This is a cross-sectional structural diagram of the connector in this utility model;
[0022] Figure 4 This is a cross-sectional structural diagram of the filter screen component in this utility model;
[0023] Figure 5 This is a schematic diagram of the positioning support component in this utility model;
[0024] Figure 6 This is a schematic diagram of the hollow cleaning rod in this utility model;
[0025] Figure 7 This is a schematic diagram of the structure of the collection frame in this utility model.
[0026] In the diagram: 1. Support frame; 2. Boiler; 3. Collection box; 4. Cleaning mechanism; 41. Air inlet pipe; 42. Middle connecting frame; 43. Spring; 44. Filter screen; 45. Telescopic pipe; 46. Bypass pipe; 47. Connector; 48. Hollow ventilation pipe; 49. Positioning support; 410. Impeller; 411. Hollow cleaning rod; 412. Brush; 413. Nozzle; 5. Collection mechanism; 51. Discharge pipe; 52. Collection box; 53. Fixed connector; 54. Sewage pipe. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-7 As shown, the present invention provides a technical solution: a novel double-drum boiler, including a support frame 1, on which a boiler 2 is fixedly connected. The boiler 2 is the same type of double-drum boiler. A collection box 3 is provided on the top of the support frame 1. A cleaning mechanism 4 is provided in the air inlet of the boiler 2. A collection mechanism 5 is provided in the air inlet of the boiler 2. The cleaning mechanism 4 is used to clean the incoming dust and impurities, and the collection mechanism 5 is used to collect the falling dust and impurities in a timely manner.
[0029] The cleaning mechanism 4 includes an air inlet pipe 41. A central connecting frame 42 is fixedly connected to the outer wall of the air inlet pipe 41. One end of a spring 43 is fixedly connected to the inner wall of the central connecting frame 42. A filter screen 44 is fixedly connected to the other end of the spring 43. One end of a telescopic tube 45 is fixedly connected to the outer wall of the filter screen 44. The other end of the telescopic tube 45 is fixedly connected to the inner wall of the central connecting frame 42. One end of a bypass air pipe 46 is fixedly connected to the bottom of the central connecting frame 42. A connecting head 47 is fixedly connected to the other end of the bypass air pipe 46. A hollow ventilation pipe 48 is rotatably connected to the inner wall of the connecting head 47. A positioning support 49 is fixedly connected to the inner wall of the air inlet pipe 41. An impeller 410 is fixedly connected to the inner wall of the hollow ventilation pipe 48. A hollow cleaning rod 411 is rotatably connected to the wall. Brushes 412 are fixedly connected to the outer wall of the hollow cleaning rod 411. A nozzle 413 is fixedly connected to the inner wall of the hollow cleaning rod 411. The outer wall of the filter screen 44 is piston-connected to the inner wall of the central connecting frame 42. A ball bearing is provided on the inner wall of the positioning support 49. The outer wall of the hollow ventilation pipe 48 penetrates the inner wall of the positioning support 49. The ball bearing on the inner wall of the positioning support 49 allows the hollow ventilation pipe 48 to move and rotate freely. Two brushes 412 are provided and are installed symmetrically. The inner wall of the hollow cleaning rod 411 is a cavity and is connected to the inner wall of the hollow ventilation pipe 48, so that the air in the hollow ventilation pipe 48 can enter the inner wall of the hollow cleaning rod 411. The boiler 2 is heated by inputting exhaust gas into the intake pipe 41. When the exhaust gas passes through the filter screen 44 on the intake pipe 41, the dust and impurities in the exhaust gas will be filtered by the filter screen 44. When dust and impurities accumulate excessively on the surface of the filter element 44, the filter element 44 experiences significant resistance. At this time, the filter element 44 is moved towards the telescopic tube 45, and the spring 43 is stretched, causing the bypass air pipe 46 at the lower right of the filter element 44 to leak out. High-pressure air is injected into the bypass air pipe 46, which enters the connector 47 through the bypass air pipe 46 and then enters the hollow ventilation pipe 48 to blow the impeller 410, causing the impeller 410 to rotate. The impeller 410 drives the hollow ventilation pipe 48 to rotate, which in turn drives the hollow cleaning rod 411 to rotate. The hollow cleaning rod 411 drives the bristles 412 to rotate and clean the filter element 44. High-pressure air enters the hollow cleaning rod 411 through the hollow ventilation pipe 48 and is then sprayed out through the nozzle 413 to blow the filter element 44.
[0030] The collection mechanism 5 includes a discharge pipe 51, which is fixedly connected to the outer wall of the hollow cleaning rod 411. A collection frame 52 is fixedly connected to the outer wall of the discharge pipe 51. A fixed connector 53 is rotatably connected to the outer wall of the discharge pipe 51. A drain pipe 54 is fixedly connected to the inner wall of the fixed connector 53. The outer wall of the drain pipe 54 is fixedly connected to the inner wall of the air inlet pipe 41. The inner wall of the collection frame 52 communicates with the inner wall of the discharge pipe 51.
[0031] In use, the novel double-drum boiler of this utility model heats the boiler 2 by inputting exhaust gas through the air inlet pipe 41. When the exhaust gas passes through the filter screen 44 on the air inlet pipe 41, the dust and impurities in the exhaust gas will be filtered by the filter screen 44, reducing the accumulation of impurities inside the boiler 2, thereby improving heat exchange efficiency, extending the service life of the equipment, reducing maintenance and cleaning work, and ensuring stable and efficient operation of the boiler 2.
[0032] When dust and impurities accumulate excessively on the surface of the filter element 44, the filter element 44 experiences significant resistance. At this point, the filter element 44 moves towards the telescopic tube 45, stretching the spring 43 and causing the bypass vent pipe 46 on the lower right side of the filter element 44 to be exposed. High-pressure air is then injected into the bypass vent pipe 46, entering the connector 47 and then the hollow ventilation pipe 48, which in turn blows the impeller 410, causing it to rotate. The impeller 410 then drives the hollow ventilation pipe 48 to rotate. 48 drives the hollow cleaning rod 411 to rotate, and the hollow cleaning rod 411 drives the brush bristles 412 to rotate to clean the filter screen 44. High-pressure air enters the hollow cleaning rod 411 through the hollow ventilation pipe 48, and is then sprayed out through the nozzle 413 to blow the filter screen 44. The high-pressure air can effectively flush and remove the dust and impurities accumulated on the surface of the filter screen 44, keep the filter screen 44 clean, and avoid the filtration efficiency from decreasing or clogging due to excessive accumulation of impurities, thereby maintaining the smooth flow of exhaust gas and the normal operation of boiler 2.
[0033] As the hollow cleaning rod 411 rotates, the dust and impurities blown out by the nozzles 413 on the hollow cleaning rod 411 enter the collection frame 52, then the discharge pipe 51, and finally the collection box 3 through the fixing connector 53 and the drain pipe 54. This ensures that the dust and impurities removed from the filter screen 44 are effectively collected, preventing them from re-entering the boiler system and maintaining the cleanliness and normal operation of the boiler.
[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0035] 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. A novel double-drum boiler, comprising a support frame (1), characterized in that: A boiler (2) is fixedly connected to the support frame (1), a collection box (3) is provided on the top of the support frame (1), a cleaning mechanism (4) is provided in the air intake part of the boiler (2), and a collection mechanism (5) is provided in the air intake part of the boiler (2). The cleaning mechanism (4) is used to clean incoming dust and impurities, and the collecting mechanism (5) is used to collect falling dust and impurities in a timely manner.
2. The novel double-drum boiler according to claim 1, characterized in that: The cleaning mechanism (4) includes an air inlet pipe (41), a central connecting frame (42) is fixedly connected to the outer wall of the air inlet pipe (41), one end of a spring (43) is fixedly connected to the inner wall of the central connecting frame (42), a filter screen (44) is fixedly connected to the other end of the spring (43), one end of a telescopic tube (45) is fixedly connected to the outer wall of the filter screen (44), the other end of the telescopic tube (45) is fixedly connected to the inner wall of the central connecting frame (42), and one end of a bypass air pipe (46) is fixedly connected to the bottom of the central connecting frame (42). The other end of the bypass vent (46) is fixedly connected to a connector (47), the inner wall of the connector (47) is rotatably connected to a hollow ventilation pipe (48), the inner wall of the air inlet pipe (41) is fixedly connected to a positioning support (49), the inner wall of the hollow ventilation pipe (48) is fixedly connected to an impeller (410), the outer wall of the hollow ventilation pipe (48) is rotatably connected to a hollow cleaning rod (411), the outer wall of the hollow cleaning rod (411) is fixedly connected to bristles (412), and the inner wall of the hollow cleaning rod (411) is fixedly connected to a nozzle (413).
3. A novel double-drum boiler according to claim 2, characterized in that: The outer wall of the filter element (44) is piston-connected to the inner wall of the middle connecting frame (42), and the inner wall of the positioning support (49) is provided with ball bearings.
4. A novel double-drum boiler according to claim 3, characterized in that: The outer wall of the hollow ventilation duct (48) penetrates the inner wall of the positioning support (49), and two bristles (412) are provided, which are installed symmetrically.
5. A novel double-drum boiler according to claim 2, characterized in that: The inner wall of the hollow cleaning rod (411) is a cavity, and the inner wall of the hollow cleaning rod (411) is connected to the inner wall of the hollow ventilation pipe (48), so that the air in the hollow ventilation pipe (48) can enter the inner wall of the hollow cleaning rod (411).
6. A novel double-drum boiler according to claim 2, characterized in that: The collection mechanism (5) includes a discharge pipe (51), which is fixedly connected to the outer wall of the hollow cleaning rod (411). A collection frame (52) is fixedly connected to the outer wall of the discharge pipe (51). A fixed connector (53) is rotatably connected to the outer wall of the discharge pipe (51). A sewage pipe (54) is fixedly connected to the inner wall of the fixed connector (53).
7. A novel double-drum boiler according to claim 6, characterized in that: The outer wall of the drain pipe (54) is fixedly connected to the inner wall of the air inlet pipe (41), and the inner wall of the collection frame (52) is connected to the inner wall of the discharge pipe (51).