Automatic cleaning device for impeller of induced draft fan

Abstract

The utility model belongs to the technical field of impeller cleaning, and particularly relates to an automatic cleaning device for an induced draft fan impeller. The problems that an existing induced draft fan impeller needs to be disassembled manually, then mechanical ash removal or high-pressure water gun flushing is adopted, impeller cleaning is time-consuming and labor-consuming, cleaning is not thorough, and the impeller is prone to being damaged are solved. According to the technical scheme, the device comprises an induced draft fan cavity, an impeller is arranged in the induced draft fan cavity, a cleaning assembly is arranged on the induced draft fan cavity, the cleaning assembly comprises a high-pressure cleaning pump, a cleaning nozzle and a cleaning pipe, and a flow guide hole is formed in the bottom of the induced draft fan cavity; according to the cleaning device disclosed by the embodiment of the utility model, dirt accumulated on the surface of the impeller can be quickly and thoroughly cleaned without manual work and dismounting the impeller, so that the service life of the induced draft fan is prolonged, the maintenance cost and the downtime of equipment are reduced, and the overall production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an induced draft fan impeller cleaning device, in particular to an induced draft fan impeller automatic cleaning device, belonging to the technical field of impeller cleaning. Background Art

[0002] As a crucial component of industrial equipment, the stability and durability of induced draft fans (IDFs) are crucial to the entire production process. During operation, the impeller, a core component, often accumulates large amounts of dirt due to impurities such as dust and particulate matter in the working environment. This not only reduces the efficiency of the IDF, but can also disrupt the dynamic balance of the equipment, causing excessive vibration in the bearing seat, and in severe cases, even damaging the bearings, increasing equipment maintenance costs and downtime.

[0003] Traditional methods for cleaning induced draft fan impellers typically require manual disassembly, followed by mechanical cleaning or high-pressure water jet flushing. This is not only time-consuming and labor-intensive, but also carries the risk of incomplete cleaning and impeller damage. Especially in large industrial sites, such as gas-fired power plants, cleaning induced draft fan impellers has become a significant challenge in operations and maintenance. Traditional cleaning methods are no longer able to meet the requirements for efficient, cost-effective, and environmentally friendly cleaning.

[0004] At present, there are some innovative solutions for fan impeller cleaning on the market, such as ultrasonic cleaning technology, planetary flip cleaning equipment, and various cleaning processes and cleaning liquids. However, these solutions still have some limitations and shortcomings when applied to induced draft fan impeller cleaning, such as poor cleaning effect, high equipment complexity, and high cost.

[0005] Therefore, it is particularly important to develop an automatic impeller cleaning device for induced draft fans that can achieve online cleaning, high cleaning efficiency, no damage to the impeller, and low cost. This device needs to be able to quickly and thoroughly clean the dirt accumulated on the impeller surface without disassembling the impeller, thereby extending the service life of the induced draft fan, reducing equipment maintenance costs and downtime, and improving overall production efficiency. Summary of the Invention

[0006] The utility model provides an automatic cleaning device for the impeller of an induced draft fan to solve the problems that the existing impeller cleaning of the induced draft fan requires manual disassembly of the impeller and then adopts mechanical cleaning or high-pressure water gun flushing methods, which is time-consuming and labor-intensive, the cleaning is not thorough, and the impeller is easily damaged.

[0007] The utility model achieves the above-mentioned object through the following technical solutions: an automatic cleaning device for an induced draft fan impeller, comprising an induced draft fan cavity, an impeller is arranged in the induced draft fan cavity, and a cleaning component is provided on the induced draft fan cavity;

[0008] The cleaning assembly includes a high-pressure cleaning pump, a cleaning nozzle, and a cleaning pipe. The high-pressure cleaning pump is used to increase the water pressure in the water pipe. The water outlet end of the high-pressure cleaning pump is connected to the cleaning pipe. The water outlet end of the cleaning pipe is connected to the cleaning nozzle. The water outlet end of the cleaning nozzle is arranged in the induced draft fan cavity. The water inlet end of the cleaning nozzle is connected to the water outlet end of the cleaning pipe. The cleaning nozzle is used to atomize the high-pressure water in the cleaning pipe and spray it out, thereby cleaning the inner wall of the induced draft fan cavity and the impeller.

[0009] A guide hole is provided at the bottom of the induced draft fan cavity, and the guide hole is used to discharge sewage, waste liquid and impurities.

[0010] As a further solution of the present invention: a plurality of cleaning nozzles are provided, and the plurality of cleaning nozzles are arranged in a row in the induced draft fan cavity.

[0011] As a further solution of the present invention: the water inlet end of the high-pressure cleaning pump is connected to a pure water pipe, an inlet valve is provided on the pure water pipe, and an outlet valve is provided on the cleaning pipe. The inlet valve and the outlet valve are used to control the water flow size.

[0012] As a further solution of the present invention: a heating device is provided on the cleaning pipe, and the heating device can heat the water pressurized by the high-pressure cleaning pump.

[0013] As a further solution of the present invention: a cleaning agent component is provided on the induced draft fan cavity, and the cleaning agent component is used for storing and spraying cleaning agent.

[0014] As a further solution of the present invention: the cleaning agent assembly includes a cleaning agent nozzle, a cleaning agent container and a cleaning agent valve; the cleaning agent container is provided on the induced draft fan cavity, the cleaning agent container is connected to the cleaning agent nozzle, and a cleaning agent valve is provided between the cleaning agent nozzle and the cleaning agent container; the cleaning agent container is used to store cleaning agent, the cleaning agent nozzle is used to spray cleaning agent, and the cleaning agent valve is used to control the spray amount of cleaning agent.

[0015] As a further solution of the present invention: the pure water pipe is connected to the workshop to produce filtered pure water.

[0016] As a further solution of the present invention: the automatic cleaning device for the induced draft fan impeller is provided with a PLC module, which is used to control the start and stop of the high-pressure cleaning pump and the switching of the inlet valve, outlet valve, heating device and cleaning agent valve.

[0017] The beneficial effects of the utility model are:

[0018] 1. In the utility model, a cleaning assembly is provided on the induced draft fan cavity, which includes a high-pressure cleaning pump, a cleaning nozzle and a cleaning pipe. A guide hole is provided at the bottom of the induced draft fan cavity. Compared with the existing technology, the dirt accumulated on the impeller surface can be quickly and thoroughly cleaned without manual labor and without disassembling the impeller, thereby extending the service life of the induced draft fan, reducing the maintenance cost and downtime of the equipment, and improving the overall production efficiency.

[0019] 2. In the present invention, a heating device is provided on the cleaning pipe, and a cleaning agent assembly is provided on the induced draft fan cavity 1, which includes a cleaning agent nozzle, a cleaning agent container, and a cleaning agent valve; the heating device increases the temperature of the water sprayed from the cleaning nozzle to better remove oil stains, and hot water sprayed onto the induced draft fan cavity and impeller is easier to evaporate. The cleaning agent assembly allows the cleaning agent to fully react with the oil stains and dirt on the impeller, and can also better remove the dirt on the impeller.

[0020] 3. In the present invention, a PLC module is provided, which can control the start and stop of the high-pressure cleaning pump and the switch of the inlet valve, outlet valve, heating device and cleaning agent valve. The PLC module can also set the automatic start and stop time; making the operation simpler and more practical, and reducing the equipment maintenance time to improve production capacity, and reducing the cost of manual maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 This is a side view of the internal structure of the utility model and a schematic diagram of the PLC module;

[0024] Figure 4 This is a schematic diagram of the structure of the cleaning component of the utility model.

[0025] In the figure: 1. induced draft fan cavity; 2. impeller; 3. cleaning component; 31. high-pressure cleaning pump; 32. cleaning nozzle; 33. cleaning pipe; 34. inlet valve; 35. outlet valve; 4. pure water pipe; 5. diversion hole; 6. heating device; 7. cleaning agent component; 71. cleaning agent nozzle; 72. cleaning agent container; 73. cleaning agent valve; 8. PLC module. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figure 2 As shown, an automatic cleaning device for an induced draft fan impeller includes an induced draft fan cavity 1, an impeller 2 is arranged in the induced draft fan cavity 1, and a cleaning component 3 is provided on the induced draft fan cavity 1.

[0029] The cleaning assembly 3 includes a high-pressure cleaning pump 31, a cleaning nozzle 32, and a cleaning pipe 33. The high-pressure cleaning pump 31 is used to increase the water pressure in the water pipe. The water outlet of the high-pressure cleaning pump 31 is connected to the cleaning pipe 33, and the water inlet of the high-pressure cleaning pump 31 is connected to a water source. The water outlet of the cleaning pipe 33 is connected to the cleaning nozzle 32. The water outlet of the cleaning nozzle 32 is arranged in the induced draft fan cavity 1. The water inlet of the cleaning nozzle 32 is connected to the water outlet of the cleaning pipe 33. The cleaning nozzle 32 is used to atomize the high-pressure water in the cleaning pipe 33 and spray it out, thereby cleaning the inner wall of the induced draft fan cavity 1 and the impeller 2.

[0030] A guide hole 5 is provided at the bottom of the induced draft fan cavity 1, and the guide hole 5 is used to discharge sewage, waste liquid and impurities;

[0031] Compared with the prior art, the cleaning device disclosed in the embodiment of the utility model can quickly and thoroughly clean the dirt accumulated on the surface of the impeller 2 without manual labor and without disassembling the impeller 2, thereby extending the service life of the induced draft fan, reducing the maintenance cost and downtime of the equipment, and improving the overall production efficiency.

[0032] Example 2

[0033] Improvements based on Example 1:

[0034] like Figures 1 to 3 As shown, in order to more comprehensively clean the induced draft fan cavity 1 and the impeller 2, a plurality of cleaning nozzles 32 are provided. The plurality of cleaning nozzles 32 are arranged in a row in the induced draft fan cavity 1. The plurality of cleaning nozzles 32 can clean the induced draft fan cavity 1 and the impeller 2 at more angles.

[0035] Furthermore, an inlet valve 34 is provided on the pure water pipe 4 at the front end of the high-pressure cleaning pump 31, and an outlet valve 35 is provided on the cleaning pipe 33. The inlet valve 34 and the outlet valve 35 are used to control the water flow in the cleaning pipe 33;

[0036] Furthermore, in order to save water and avoid wasting water resources, usually, the pure water pipe 4 is connected to the workshop to produce filtered pure water;

[0037] In another embodiment, a heating device 6 is provided on the cleaning pipe 33. The heating device can heat the water pressurized by the high-pressure cleaning pump 31. The boiling point of the pressurized water is increased. By increasing the temperature of the water sprayed from the cleaning nozzle 32, the oil stains can be better removed. In addition, the hot water sprayed onto the induced draft fan cavity 1 and the impeller 2 is more easily evaporated.

[0038] In another embodiment, in order to clean more thoroughly, a cleaning agent component 7 is provided on the induced draft fan cavity 1, and the cleaning agent component 7 is used to store and spray the cleaning agent;

[0039] Furthermore, the cleaning agent assembly 7 includes a cleaning agent nozzle 71, a cleaning agent container 72, and a cleaning agent valve 73. The cleaning agent container 72 is provided on the induced draft fan cavity 1, and the cleaning agent container 72 is connected to the cleaning agent nozzle 71. A cleaning agent valve 73 is provided between the cleaning agent nozzle 71 and the cleaning agent container 72, and the cleaning agent nozzle 71 is located near the cleaning nozzle 32; the cleaning agent container 72 is used to store cleaning agent, the cleaning agent nozzle 71 is used to spray cleaning agent, and the cleaning agent valve 73 is used to control the spray amount of cleaning agent; when cleaning is required, the cleaning agent valve 73 is opened, and the cleaning agent is sprayed from the cleaning agent nozzle 71 and sprayed onto the impeller 2. The impeller 2 rotates slowly, so that the cleaning agent covers the impeller 2 more comprehensively; the cleaning agent assembly 7 allows the cleaning agent to fully react with the oil and dirt on the impeller 2, which can better remove the dirt on the impeller 2.

[0040] In another embodiment, the automatic cleaning device is provided with a PLC module 8, which is used to control the start and stop of the high-pressure cleaning pump 31 as well as the inlet valve 34, the outlet valve 35, the heating device 6 and the cleaning agent valve 73. The PLC module 8 can set the automatic start and stop time. Under normal circumstances, the cleaning device is started once every 2 hours of operation of the induced draft fan, and the startup time is about 5 minutes; this makes the operation simpler and more practical, reduces the equipment maintenance time, thereby improving production capacity, and reduces the cost of manual maintenance.

[0041] The working principle of this utility model:

[0042] like Figures 1 to 3 As shown, under normal circumstances, the cleaning device performs a preliminary flushing every 2 hours of operation of the induced draft fan; for the preliminary flushing, the PLC module 8 first controls the opening of the inlet valve 34 and the outlet valve 35, and simultaneously turns on the high-pressure cleaning pump 31 and the heating device 6. The water pressurized and heated by the high-pressure cleaning pump 31 and the heating device 6 is ejected from the cleaning nozzle 32 to perform a preliminary flushing on the impeller 2 to remove dirt on the impeller 2. The dirt and wastewater flow into the guide hole 5 under the influence of centrifugal force and gravity and are then discharged; the running time of a preliminary flushing is about 5 minutes.

[0043] In order to deeply clean the induced draft fan, the PLC module 8 controls the cleaning device to perform a deep cleaning on the induced draft fan every 12 hours of operation. After the initial flushing is completed, the cleaning agent valve 73 is opened to allow the cleaning agent nozzle 71 to spray the cleaning agent onto the impeller 2. After the spraying is completed, the cleaning agent valve 73 is closed. The induced draft fan impeller 2 is left to stand for 2 minutes to allow the cleaning agent to fully react with the oil and dirt on the impeller 2, and then a preliminary flush is performed again to make the cleaning more thorough. The deep cleaning time is about ten minutes.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the heating device 6 and the PLC module 8 are commonplace and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic cleaning device for an induced draft fan impeller, comprising an induced draft fan cavity (1), wherein an impeller (2) is arranged in the induced draft fan cavity (1), characterized in that: The induced draft fan cavity (1) is provided with a cleaning component (3); The cleaning assembly (3) comprises a high-pressure cleaning pump (31), a cleaning nozzle (32) and a cleaning pipe (33); the high-pressure cleaning pump (31) is used to increase the water pressure in the water pipe; the water outlet of the high-pressure cleaning pump (31) is connected to the cleaning pipe (33); the water outlet of the cleaning pipe (33) is connected to the cleaning nozzle (32); the water outlet of the cleaning nozzle (32) is arranged in the induced draft fan cavity (1); the water inlet of the cleaning nozzle (32) is connected to the water outlet of the cleaning pipe (33); the cleaning nozzle (32) is used to atomize the high-pressure water in the cleaning pipe (33) and then spray it out, thereby cleaning the inner wall of the induced draft fan cavity (1) and the impeller (2); A guide hole (5) is provided at the bottom of the induced draft fan cavity (1), and the guide hole (5) is used to discharge sewage, waste liquid and impurities.

2. The automatic cleaning device for an induced draft fan impeller according to claim 1, characterized in that: A plurality of cleaning nozzles (32) are provided, and the plurality of cleaning nozzles (32) are arranged in a row in the induced draft fan cavity (1).

3. The automatic cleaning device for an induced draft fan impeller according to claim 1, characterized in that: The water inlet end of the high-pressure cleaning pump (31) is connected to a pure water pipe (4), an inlet valve (34) is provided on the pure water pipe (4), and an outlet valve (35) is provided on the cleaning pipe (33), and the inlet valve (34) and the outlet valve (35) are used to control the size of the water flow.

4. The automatic cleaning device for an induced draft fan impeller according to claim 1, characterized in that: The cleaning pipe (33) is provided with a heating device (6), and the heating device (6) can heat the water pressurized by the high-pressure cleaning pump (31).

5. The automatic cleaning device for an induced draft fan impeller according to claim 1, characterized in that: A cleaning agent component (7) is provided on the induced draft fan cavity (1), and the cleaning agent component (7) is used for storing and spraying cleaning agent.

6. The automatic cleaning device for an induced draft fan impeller according to claim 5, characterized in that: The cleaning agent assembly (7) comprises a cleaning agent nozzle (71), a cleaning agent container (72) and a cleaning agent valve (73); the cleaning agent container (72) is provided on the induced draft fan cavity (1); the cleaning agent container (72) is connected to the cleaning agent nozzle (71); and a cleaning agent valve (73) is provided between the cleaning agent nozzle (71) and the cleaning agent container (72); the cleaning agent container (72) is used to store cleaning agent, the cleaning agent nozzle (71) is used to spray cleaning agent, and the cleaning agent valve (73) is used to control the spraying amount of cleaning agent.

7. The automatic cleaning device for an induced draft fan impeller according to claim 3, characterized in that: The pure water pipe (4) is connected to the workshop to produce filtered pure water.

8. An automatic cleaning device for an induced draft fan impeller according to any one of claims 1 to 7, characterized in that: The induced draft fan impeller automatic cleaning device is provided with a PLC module (8), and the PLC module (8) is used to control the start and stop of the high-pressure cleaning pump (31) and the switching of the inlet valve (34), the outlet valve (35), the heating device (6), and the cleaning agent valve (73).

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