Blowing device suitable for centrifugal ventilator impeller

Abstract

The invention discloses a blowing device suitable for a centrifugal ventilator impeller. The blowing device comprises a supporting plate. The steam pocket is connected with the upper portion of the supporting plate through a supporting frame. At least one group of electromagnetic pulse valves are arranged; the electromagnetic pulse valves are communicated with the steam pocket and the gas storage tank through connecting pipes; and the pulse controller is used for controlling the on-off of the electromagnetic pulse valve. According to the device, by optimizing the algorithm of the pulse controller, accurate and timed blowing is achieved, dust accumulation is effectively reduced, and it is ensured that the dynamic balance of the impeller is stable. The device is compact in structure, easy and convenient to install, low in maintenance cost and suitable for various centrifugal ventilators, the durability and the working efficiency of the centrifugal ventilators are remarkably improved, and an efficient solution is provided for operation of the ventilators under the high-dust and high-viscosity working conditions.

Description

Technical Field

[0001] This invention belongs to the field of fan equipment technology, specifically relating to a jet blowing device suitable for centrifugal fan impellers. Background Technology

[0002] Centrifugal fans are essential equipment in industrial production processes and are widely used in industries such as cement, steel, and power. Due to their harsh working environment, high dust concentration, and high viscosity of the medium, dust easily accumulates on the impeller, leading to dynamic imbalance and affecting fan performance.

[0003] Traditional cleaning methods are inefficient and costly to maintain. There is an urgent need for a more efficient solution, especially for centrifugal fans operating under special conditions where dust concentration is high and the medium is highly viscous, causing a large amount of dust to adhere to the impeller and leading to impeller dynamic balance failure. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A jet-blowing device suitable for centrifugal fan impellers, comprising: Support plate; The steam drum is connected to the upper part of the support plate via a support frame; At least one set of electromagnetic pulse valves is provided, and the electromagnetic pulse valves are connected to the steam drum and the gas storage tank through connecting pipes. A pulse controller is used to control the on / off state of the electromagnetic pulse valve.

[0005] Furthermore, a nozzle is connected to the outlet of the electromagnetic pulse valve.

[0006] Furthermore, the direction of the airflow from the nozzle is parallel to the impeller blades.

[0007] Furthermore, a sealing flange is provided at the air inlet of the steam drum.

[0008] Furthermore, the electromagnetic pulse valve includes at least one of the following: right-angle type, quick-connect type, and submersible type.

[0009] Furthermore, the electromagnetic pulse valves are provided in three sets, and are arranged at intervals along the length of the support frame.

[0010] Furthermore, the upper end of the support frame is V-shaped.

[0011] Compared with the prior art, the present invention has the following beneficial effects: When centrifugal fans operate under special conditions with high dust concentration and high viscosity media, a large amount of dust adheres to the impeller, causing impeller dynamic balance failure. This invention addresses this issue by optimizing the pulse controller algorithm to achieve precise timed blowing, effectively reducing dust accumulation and ensuring stable impeller dynamic balance. The device is compact, easy to install, and has low maintenance costs. It is suitable for various types of centrifugal fans, significantly improving their durability and efficiency, and providing a highly efficient solution for fan operation under high dust and high viscosity conditions. By installing a blower system, the blowing efficiency and blade cleaning effect are effectively improved, energy consumption and maintenance costs are reduced, equipment lifespan is extended, and stable system operation is ensured. Attached Figure Description

[0012] Figure 1 A schematic diagram illustrating a specific embodiment of the present invention (view 1); Figure 2 A schematic diagram illustrating a specific embodiment of the present invention (perspective two); Figure 3 This is a schematic diagram illustrating the structure of the pulse controller in a specific embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the right-angle electromagnetic pulse valve in a specific embodiment of the present invention; Figure 5 This is a three-dimensional structural diagram illustrating the quick-connect electromagnetic pulse valve in a specific embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram illustrating the submerged electromagnetic pulse valve in a specific embodiment of the present invention; The reference numerals in the accompanying drawings include: 1. Support plate; 2. Steam drum; 3. Support frame; 4. Electromagnetic pulse valve; 6. Impeller. Detailed Implementation

[0013] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0015] like Figure 1 - Figure 6 As shown, a jet blowing device for centrifugal fan impellers according to the present invention includes a support plate 1, a steam drum 2, an electromagnetic pulse valve 4, and a pulse controller. Among them, the steam drum 2 is connected to the upper part of the support plate 1 through the support frame 3; At least one set of electromagnetic pulse valve 4 is provided. Electromagnetic pulse valve 4 is connected to steam drum 2 and gas storage tank through connecting pipe. The pulse controller is used to control the on / off state of electromagnetic pulse valve 4.

[0016] The device precisely controls the opening and closing of the electromagnetic pulse valve 4 through a pulse controller, and periodically sprays high-pressure gas into the impeller 6, effectively reducing dust adsorption on the impeller 6.

[0017] The frequency and duration of high-pressure gas injection can be adjusted according to actual operating conditions to maximize the reduction of dust adsorption time on impeller 6 without affecting the normal operation of the fan. This device features a compact design, easy installation, low maintenance costs, and is suitable for various centrifugal fans, significantly improving their durability and efficiency.

[0018] In addition, a nozzle is connected to the outlet of the electromagnetic pulse valve 4. The nozzle concentrates the airflow into a beam and precisely guides it to the dust-prone parts of the impeller 6.

[0019] Specifically, the direction of the airflow from the nozzle is parallel to the impeller blades 6.

[0020] A sealing flange is provided at the air inlet of the steam drum 2, which is beneficial to the airtightness of the connection.

[0021] Furthermore, the electromagnetic pulse valve 4 includes at least one of the following: right-angle type, quick-connect type, and submerged type.

[0022] Three sets of electromagnetic pulse valves 4 are arranged at intervals along the length of the support frame 3. This arrangement provides better blowing effect for the impeller 6.

[0023] The upper end of the support frame 3 is V-shaped. This makes the installation of the steam drum 2 more stable.

[0024] A single solenoid valve controller can control multiple pulse valves, so only one pulse valve is needed for a single jet-blowing system. By optimizing the pulse controller algorithm, precise timing of jet-blowing is achieved, further reducing dust accumulation. This device not only effectively extends the service life of the fan but also reduces maintenance frequency and improves system stability and reliability. Its innovative design provides an efficient solution for fan operation under high-dust and high-viscosity conditions, and has broad industrial application prospects.

[0025] When a centrifugal fan operates under special conditions with high dust concentration and high viscosity of the medium, a large amount of dust is adsorbed on the impeller, causing the impeller's dynamic balance to fail. The device of this invention achieves precise timed blowing by optimizing the pulse controller algorithm, effectively reducing dust accumulation and ensuring stable impeller dynamic balance.

[0026] This device has a compact structure, is easy to install, and has low maintenance costs. It is suitable for various centrifugal fans, significantly improving their durability and working efficiency, and providing an efficient solution for the operation of fans in high dust and high viscosity conditions.

[0027] The working process of this device is as follows: In this chain, the steam drum plays a crucial role as the "energy storage and stabilization center," connecting the high-pressure gas source, the steam drum, the electromagnetic pulse valve, the nozzle, and the impeller.

[0028] Dust removal requires instantaneous and powerful blowing force to effectively shake off adhering dust. However, the output of an air compressor (high-pressure air source) is relatively continuous and stable.

[0029] During the interval when the solenoid valve is closed, the steam drum continuously fills with high-pressure gas from the air compressor. When the solenoid valve opens instantaneously, the steam drum can release a large amount of gas that is far greater than the instantaneous flow rate of the air compressor, forming a powerful explosive pulse airflow, thereby achieving a highly efficient dust removal effect.

[0030] In addition, as a large-capacity pressure vessel, the steam drum can effectively dampen such pressure fluctuations, providing a stable and reliable working pressure source for the solenoid valve and ensuring that the force of each injection is consistent.

[0031] Upon receiving the control signal, it is precisely activated within milliseconds to release the high-pressure gas in the steam drum.

[0032] This invention, through innovative structural design, effectively reduces the frequency of impeller dust accumulation, significantly improving the operating efficiency and durability of the fan. The widespread application of this device not only optimizes industrial production processes but also significantly improves the working environment, reduces downtime caused by impeller dust accumulation, and further enhances the overall competitiveness of enterprises. Its high efficiency and reliable performance have gained widespread recognition within the industry, making it an ideal choice for ventilation fan operation under high-dust and high-viscosity conditions.

[0033] The design concept of this technical solution integrates modern technology with industrial needs. Through intelligent control, it achieves continuous optimization of fan operation, reduces energy consumption, improves production efficiency, and injects new impetus into the sustainable development of the industrial sector.

[0034] Pulse controllers can be purchased online based on the number of solenoid pulse valves and the input voltage of the pulse control valves. The output voltage of the pulse controller (generally DC24V or AC220V) must correspond to the input voltage of the solenoid pulse valves (generally DC24V or AC220V). The number of solenoid pulse valves must be within the output channel range of the pulse controller. Figure 3 As shown.

[0035] The parameter settings for electromagnetic pulse valves vary significantly between different manufacturers.

[0036] Taking the parameter setting method of the Shangrui Technology electromagnetic pulse valve as an example: Press the "Set" button to enter the parameter setting, activate each parameter in sequence, and the corresponding indicator light in the status indicator area will light up. You can set each parameter by using the "Add" and "Subtract" buttons (long press to adjust speed).

[0037] After setting, press the "Set" button to automatically save the parameters, and the system will run according to the parameters. Considering the ease of customer setup, the controller has both a standard version and an advanced version. When PF.P1 is displayed upon startup, the controller is in the standard version. In this mode, the controller hides the operating mode settings, ignores operating control, and continuously cycles through the blowing process.

[0038] When the power-on display shows P1.F0, the controller is in advanced mode, allowing for open operation mode parameter settings and is controlled by the operation control dry contact. At any time, pressing and holding the SET button for more than 5 seconds will display PF.P1, indicating a switch from advanced to normal mode; displaying PF.F0 only indicates a switch from normal to advanced mode.

[0039] The default setting is the standard version. When the advanced version is enabled, two additional parameters will be added during setup to indicate the operating mode (the first parameter will be displayed as "F" to represent the mode; the second parameter will be displayed as "P" to represent the delayed start time setting). Explanation of parameters for electromagnetic pulse valve Shangrui Technology's electromagnetic pulse valve operating control modes (divided into normal mode and advanced mode). Users can choose different modes as needed.

[0040] Electromagnetic pulse valve Common electromagnetic pulse valves on the market are classified into right-angle type, submerged type, and quick-connect type, such as... Figure 4 , Figure 5 , Figure 6 As shown. (The quick-connect type is an upgraded version of the right-angle type. The difference is that the quick-connect type has nuts designed at the inlet and outlet for easy pipe connection, but the price is slightly higher than the right-angle type.) You can choose the right-angle type or the quick-connect type depending on the actual situation.

[0041] The inlet of the electromagnetic pulse valve is connected to the air compressor via a pipe, and the outlet is connected to the nozzle via a pipe. The direction of the airflow must be parallel to the blades. The electromagnetic pulse valve controls the opening and closing of the valve core through an electromagnetic coil to achieve precise spraying. During installation, ensure that the valve body and the pipeline are well sealed to avoid air leakage affecting the effect. Regularly check the wear of the coil and valve core to ensure stable system operation.

[0042] By installing a blower system, the blowing efficiency and blade cleaning effect are effectively improved, energy consumption and maintenance costs are reduced, equipment lifespan is extended, and stable system operation is ensured. Simultaneously, the system allows for flexible adjustment of blowing parameters and optimization of operating modes according to actual needs, further enhancing its adaptability and ease of operation, and providing reliable support for industrial production.

[0043] It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A jet-blowing device suitable for the impeller of a centrifugal fan, characterized in that, include: Support plate (1); The steam drum (2) is connected to the upper part of the support plate (1) via a support frame (3); At least one set of electromagnetic pulse valves (4) is provided, and the electromagnetic pulse valves (4) are connected to the steam drum (2) and the gas storage tank through connecting pipes; A pulse controller is used to control the on / off state of the electromagnetic pulse valve (4).

2. The jet-blowing device for centrifugal fan impeller as described in claim 1, characterized in that: A nozzle is connected to the outlet of the electromagnetic pulse valve (4).

3. The jet-blowing device for centrifugal fan impellers as described in claim 1, characterized in that: The direction of the airflow from the nozzle is parallel to the impeller blades.

4. A jet-blowing device suitable for centrifugal fan impellers as described in claim 1, 2, or 3, characterized in that: The air inlet of the steam drum (2) is equipped with a sealing flange.

5. A jet-blowing device suitable for centrifugal fan impellers as described in claim 4, characterized in that: The electromagnetic pulse valve (4) includes at least one of the following: right-angle type, quick-connect type, and submerged type.

6. A jet-blowing device suitable for centrifugal fan impellers as described in claim 1, characterized in that: The electromagnetic pulse valve (4) is provided in three sets and is arranged at intervals along the length of the support frame (3).

7. A jet-blowing device suitable for centrifugal fan impellers as described in claim 1, characterized in that: The upper end of the support frame (3) is V-shaped.

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