Flushing device suitable for industrial centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a flushing device suitable for an industrial centrifugal fan, which comprises a shell and an impeller, the impeller is rotatably connected in the shell, a cleaning assembly for cleaning the impeller is arranged on the shell, and a control assembly for starting the cleaning assembly is arranged on one side of the shell. The control assembly comprises a fixing column arranged on one side of the machine shell, and an electric cylinder is fixedly connected to the top end of the fixing column. Through cooperative arrangement of the electric cylinder, the vibration monitoring element, the plc and other structures, during use, the electric cylinder is started to enable the vibration monitoring element to be close to the machine shell and keep a certain distance from the machine shell; when the impeller is cleaned, large vibration can be generated, the machine shell vibrates to make contact with the vibration monitoring element, the plc controls and starts the cleaning assembly to clean the impeller for a certain time, and the problem that the working efficiency is reduced due to the fact that cleaning cannot be conducted according to the real-time condition of scale deposition of the impeller is avoided as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of centrifugal fans, and in particular to a flushing device suitable for industrial centrifugal fans. Background Art

[0002] A centrifugal fan is a driven machine that relies on input to increase gas pressure and discharge the gas. Centrifugal fans are widely used for ventilation, dust removal, and cooling in factories, mines, vehicles, ships, and buildings; ventilation and draft in boilers and industrial furnaces; cooling and ventilation in household appliances; drying and transporting grain; and providing wind tunnels and inflation and propulsion for hovercraft. However, when the impeller of a centrifugal fan is transporting dirt, it can cause excessive vibration, necessitating cleaning.

[0003] The utility model patent with announcement number CN219101725U proposes a self-cleaning centrifugal fan, including a casing, an impeller and a motor. The impeller is rotatably connected to the casing, and the motor is connected to the impeller through a transmission assembly. A cleaning port is provided at the top of the casing, a sewage outlet is provided at the bottom, and a cleaning device is also included. The cleaning device includes a booster pump, a flushing nozzle and a conduit for conveying cleaning liquid. The flushing nozzle is fixed in the casing corresponding to the cleaning port, one end of the conduit passes through the cleaning port and is connected to the flushing nozzle, and the booster pump is installed on the conduit.

[0004] One of the self-cleaning centrifugal fans mentioned above starts the booster pump through the controller to pressurize the cleaning liquid in the duct and transport it to the flushing nozzle. The cleaning liquid is sprayed from the flushing nozzle to clean the impeller and the stains attached to the inside of the casing. The motor drives the impeller to rotate at a low speed, which is convenient for fully cleaning the impeller to remove the attached stains. However, it is impossible to clean the impeller according to the real-time situation of fouling, resulting in reduced work efficiency. Utility Model Content

[0005] The purpose of the present utility model is to solve or at least alleviate the problem of an existing self-cleaning centrifugal fan, in which the booster pump is started by a controller to pressurize the cleaning liquid in the duct and transport it to the flushing nozzle. The cleaning liquid is sprayed from the flushing nozzle to clean the impeller and the stains attached to the inside of the casing. The motor drives the impeller to rotate at a low speed, which is convenient for fully cleaning the impeller to solve the attached stains. However, it is impossible to clean the impeller according to the real-time situation of fouling, resulting in reduced work efficiency.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A flushing device suitable for an industrial centrifugal fan includes a casing and an impeller, the impeller being rotatably connected to the inside of the casing, a cleaning component for cleaning the impeller being provided on the casing, a control component for starting the cleaning component being provided on one side of the casing, the control component including a fixed column arranged on one side of the casing, an electric cylinder being fixedly connected to the top end of the fixed column, a vibration monitoring element being fixedly connected to the output end of the electric cylinder, the output end of the vibration monitoring element being close to the casing, a PLC controller being fixedly connected to the side wall of one side of the fixed column, and the PLC controller being electrically connected to the vibration monitoring element.

[0008] By adopting the above technical solution, when in use, the vibration monitoring element is moved close to the casing by starting the electric cylinder and keeping a certain distance from the casing. When the impeller is too fouled, it will generate a large vibration, causing the casing to vibrate and contact the vibration monitoring element, so that the PLC controller controls the start-up of the cleaning component to clean the impeller for a certain period of time, thereby avoiding as much as possible the problem of being unable to clean according to the real-time situation of impeller fouling, resulting in reduced work efficiency.

[0009] Optionally, the cleaning component includes a plurality of flushing nozzles arranged on the inner wall of the casing, the output end of the flushing nozzle is close to the impeller, and the input end of the flushing nozzle is detachably connected to a water pipe, and the end of the water pipe away from the flushing nozzle is fixedly connected to the same water pipe, and the water pipe is fixedly connected to a solenoid valve, and the solenoid valve is electrically connected to the PLC controller.

[0010] By adopting the above technical solution, the water pipe is connected to the external water supply equipment. When the casing comes into contact with the vibration monitoring element, the solenoid valve can be opened through the PLC controller, so that the water pipe can transport clean water to the water pipe, and then the impeller is flushed through the flushing nozzle.

[0011] Optionally, the water pipe is divided into two sections and a booster pump is provided in between, the output end and the input end of the booster pump are fixedly connected to the water pipe respectively, and the booster pump is electrically connected to the PLC controller.

[0012] By adopting the above technical solution, the water pressure in the water pipe can be increased by starting the booster pump to prevent the water pressure in the flushing nozzle from being too low, which makes it difficult for the impeller to spray clean water when the speed is too high, affecting the cleaning efficiency.

[0013] Optionally, a connecting plate is provided on the input end of the flushing nozzle, and a plurality of fixing bolts are provided on the connecting plate. The fixing bolts pass through the connecting plate and are threadedly connected to the casing.

[0014] By adopting the above technical solution, the flushing nozzle can be disassembled by rotating the fixing bolt, making it convenient to replace different types.

[0015] Optionally, a flow detector is fixedly connected to the water pipe.

[0016] By adopting the above technical solution, the flow rate of clean water in the water pipe can be detected by a flow detector to prevent the lack of clean water.

[0017] Optionally, a sewage outlet is provided at the bottom end of the casing, and a guide pipe is fixedly connected to the sewage outlet at the bottom end of the casing.

[0018] By adopting the above technical solution, the sewage flushed in the casing can be conveniently discharged through the sewage outlet and the diversion pipe.

[0019] Optionally, the PLC controller is electrically connected to the electric cylinder.

[0020] By adopting the above technical solution, when the casing contacts the vibration monitoring element, the electric cylinder is controlled to retract according to the set cleaning time, and the vibration monitoring element is moved away from the casing to prevent continuous contact. When the cleaning is completed, the electric cylinder is controlled to move the vibration monitoring element closer to the casing.

[0021] Optionally, a whistle is fixedly connected to the flow detector, and the whistle is electrically connected to the flow detector.

[0022] By adopting the above technical solution, when the flow detector detects that the clean water flow in the water pipe is low, the whistle can be activated to sound an alarm to remind the operator that there is a lack of clean water.

[0023] In summary, the beneficial effects of this application are as follows:

[0024] 1. This application utilizes the coordination of an electric cylinder, a vibration monitoring element, and a PLC controller. When in use, the electric cylinder is activated to move the vibration monitoring element close to the casing, maintaining a certain distance from the casing. When the impeller is excessively fouled, a large vibration is generated, causing the casing to vibrate and contact the vibration monitoring element, and the PLC controller controls the activation of the cleaning component to clean the impeller for a certain period of time. This minimizes the problem of being unable to clean the impeller according to the real-time situation of impeller fouling, which reduces work efficiency.

[0025] 2. The flushing nozzle can be removed by turning the fixing bolt, making it easy to replace different types. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 For the utility model Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0028] Figure 3For the utility model Figure 1 Schematic diagram of the enlarged structure of area B in the middle.

[0029] Explanation of the accompanying symbols: 1. Casing; 2. Impeller; 3. Fixing column; 4. Electric cylinder; 5. Vibration monitoring element; 6. PLC controller; 7. Flushing nozzle; 8. Water supply pipe; 9. Water guide pipe; 10. Solenoid valve; 11. Booster pump; 12. Connecting plate; 13. Fixing bolt; 14. Flow meter; 15. Sewage outlet; 16. Diversion pipe; 17. Whistle. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] See also Figure 1-3 A flushing device suitable for an industrial centrifugal fan comprises a casing 1 and an impeller 2, the impeller 2 is rotatably connected to the inside of the casing 1, a cleaning component for cleaning the impeller 2 is provided on the casing 1, the cleaning component comprises a flushing nozzle 7, a water pipe 8, a water pipe 9 and a solenoid valve 10, a control component for starting the cleaning component is provided on one side of the casing 1, the control component comprises a fixed column 3 arranged on one side of the casing 1, an electric cylinder 4 for providing a moving effect is fixedly connected to the top of the fixed column 3, a vibration monitoring element 5 is fixedly connected to the output end of the electric cylinder 4, in the embodiment, the vibration monitoring element 5 is a touch switch, the output end of the vibration monitoring element 5 is close to the casing 1, a PLC controller 6 for controlling the start time of the cleaning component is fixedly connected to the side wall of one side of the fixed column 3, the cleaning component can be timed to start and flush time according to demand through the PLC controller 6, and the PLC controller 6 is electrically connected to the vibration monitoring element 5.

[0032] During use, the vibration monitoring element 5 is moved close to the casing 1 by starting the electric cylinder 4 and keeping a certain distance from the casing 1. When the impeller 2 is too fouled, it will generate a large vibration, causing the casing 1 to vibrate and contact the vibration monitoring element 5, so that the PLC controller 6 controls the start-up of the cleaning component to clean the impeller 2 for a certain period of time, thereby avoiding the problem of being unable to clean the impeller 2 according to the real-time situation of fouling, which leads to reduced work efficiency.

[0033] Reference Figure 1 and Figure 2The flushing nozzle 7 is provided with multiple detachable connections on the inner wall of the casing 1, the output end of the flushing nozzle 7 is close to the impeller 2, the water pipe 8 is detachably connected to the input end of the flushing nozzle 7, the water pipe 9 is arranged above the water pipe 8 and is connected to multiple water pipes 8, the solenoid valve 10 is fixedly connected to the water pipe 9 for controlling the switch of the water pipe 9, the solenoid valve 10 is electrically connected to the plc controller 6, and the water pipe 9 is connected to the external water supply equipment. When the casing 1 contacts the vibration monitoring element 5, the solenoid valve 10 can be opened by the plc controller 6, so that the water pipe 9 transports clean water to the water pipe 8, and then the impeller 2 is flushed through the flushing nozzle 7.

[0034] Reference Figure 1 and Figure 2 The water pipe 9 is divided into two sections and a booster pump 11 is provided between them. The output end and the input end of the booster pump 11 are fixedly connected to the water pipe 9 respectively. The booster pump 11 is electrically connected to the PLC controller 6. By starting the booster pump 11, the water pressure of the water pipe 9 can be increased to prevent the water pressure of the flushing nozzle 7 from being too low. When the impeller 2 rotates at too high a speed, it is difficult to spray clean water, affecting the cleaning efficiency.

[0035] Reference Figure 2 The input end of the flushing nozzle 7 is provided with a connecting plate 12, and a plurality of fixing bolts 13 are provided on the connecting plate 12. The fixing bolts 13 pass through the connecting plate 12 and are threadedly connected to the casing 1. By rotating the fixing bolts 13, the flushing nozzle 7 can be removed, which is convenient for replacing different types.

[0036] Reference Figure 1 A flow detector 14 is fixedly connected to the water pipe 9, and the flow detector 14 can detect the flow of clean water in the water pipe 9 to prevent lack of clean water.

[0037] Reference Figure 1 A sewage outlet 15 is provided at the bottom of the casing 1, and a guide pipe 16 is fixedly connected to the sewage outlet 15 at the bottom of the casing 1. The sewage flushed in the casing 1 can be discharged conveniently through the sewage outlet 15 and the guide pipe 16.

[0038] Reference Figure 1 The PLC controller 6 is electrically connected to the electric cylinder 4. When the housing 1 contacts the vibration monitoring element 5, the electric cylinder 4 is controlled to retract according to the set cleaning time, and the vibration monitoring element 5 is moved away from the housing 1 to prevent continuous contact. When the cleaning is completed, the electric cylinder 4 is controlled to move the vibration monitoring element 5 close to the housing 1.

[0039] Reference Figure 3 A whistle 17 is fixedly connected to the flow detector 14 and is electrically connected to the flow detector 14. When the flow detector 14 detects that the clean water flow in the water pipe 9 is low, the whistle 17 can be activated to sound an alarm to remind the operator that there is a lack of clean water.

[0040] The implementation principle of the present application is: when in use, the vibration monitoring element 5 is moved close to the casing 1 by starting the electric cylinder 4, and a certain distance is maintained from the casing 1. When the impeller 2 is too fouled, a large vibration will be generated, causing the casing 1 to vibrate and contact the vibration monitoring element 5, so that the PLC controller 6 opens the solenoid valve 10, and the water pipe 9 transports clean water to the water pipe 8, and then the impeller 2 is flushed through the flushing nozzle 7, so as to avoid the problem of not being able to clean according to the real-time situation of the fouling of the impeller 2, resulting in reduced work efficiency.

[0041] The above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A flushing device suitable for an industrial centrifugal fan, comprising a housing (1) and an impeller (2), wherein the impeller (2) is rotatably connected to the interior of the housing (1), a cleaning assembly for cleaning the impeller (2) is provided on the housing (1), and a control assembly for activating the cleaning assembly is provided on one side of the housing (1), characterized in that: The control component includes a fixed column (3) arranged on one side of the housing (1), the top of the fixed column (3) is fixedly connected to an electric cylinder (4), the output end of the electric cylinder (4) is fixedly connected to a vibration monitoring element (5), the output end of the vibration monitoring element (5) is close to the housing (1), and a PLC controller (6) is fixedly connected to a side wall of one side of the fixed column (3), and the PLC controller (6) is electrically connected to the vibration monitoring element (5).

2. A flushing device suitable for an industrial centrifugal fan according to claim 1, characterized in that: The cleaning assembly comprises a plurality of flushing nozzles (7) arranged on the inner wall of the housing (1), the output end of the flushing nozzle (7) being close to the impeller (2), and the input end of each flushing nozzle (7) being detachably connected to a water pipe (8), and the end of the water pipe (8) away from the flushing nozzle (7) being fixedly connected to the same water pipe (9), and the water pipe (9) being fixedly connected to a solenoid valve (10), and the solenoid valve (10) being electrically connected to the PLC controller (6).

3. A flushing device suitable for an industrial centrifugal fan according to claim 2, characterized in that: The water pipe (9) is divided into two sections and a booster pump (11) is provided between the two sections. The output end and the input end of the booster pump (11) are respectively fixedly connected to the water pipe (9). The booster pump (11) is electrically connected to the PLC controller (6).

4. The flushing device for an industrial centrifugal fan according to claim 2, characterized in that: The input end of the flushing nozzle (7) is sleeved with a connecting plate (12), and a plurality of fixing bolts (13) are provided on the connecting plate (12). The fixing bolts (13) pass through the connecting plate (12) and are threadedly connected to the housing (1).

5. The flushing device for an industrial centrifugal fan according to claim 2, characterized in that: A flow detector (14) is fixedly connected to the water pipe (9).

6. The flushing device for an industrial centrifugal fan according to claim 1, characterized in that: A sewage outlet (15) is provided at the bottom end of the casing (1), and a flow guide pipe (16) is fixedly connected to the sewage outlet (15) at the bottom end of the casing (1).

7. The flushing device for an industrial centrifugal fan according to claim 1, characterized in that: The PLC controller (6) is electrically connected to the electric cylinder (4).

8. The flushing device for an industrial centrifugal fan according to claim 5, characterized in that: A whistle (17) is fixedly connected to the flow detector (14), and the whistle (17) is electrically connected to the flow detector (14).

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