Fan filtering device based on cleanliness dynamic adjustment

Abstract

The utility model discloses a fan filter device based on cleanliness dynamic adjustment, which relates to the technical field of air purification and comprises a fan static pressure box body, a metal air inlet mesh enclosure is arranged at the top of the fan static pressure box body, a brushless direct current fan unit is arranged in the fan static pressure box body, and a fan filter is arranged in the fan static pressure box body. An efficient filter is arranged at the bottom of the fan static pressure box body, a machine box is fixedly arranged on the side face of the fan static pressure box body, an intelligent monitoring control module, a power module and a wireless transmission module are arranged in the machine box, a sealing plate is arranged at the top of the machine box, and a group control system module is arranged on the side face of the fan static pressure box body. According to the intelligent FFU, the running mode of the FFU can be adjusted in real time, closed-loop control over cleanliness can be achieved, running energy consumption of the FFU can be reduced, intelligent maintenance of the FFU can be achieved, and the problems that an existing fan filtering device is wasted in energy consumption, single in monitoring and calling and complex in communication and wiring are solved.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a fan filtration device based on dynamic adjustment of cleanliness. Background Technology

[0002] A fan filter unit (FFU) is a modular air purification device that integrates a fan and a high-efficiency filter. It is primarily used in cleanrooms, dust-free workshops, and other environments to provide high-cleanliness air circulation, either locally or throughout the entire space. Its core function is to control the concentration of particulate matter in the air through high-efficiency filtration and uniform air delivery, meeting the cleanliness requirements of fields such as precision manufacturing and biomedicine.

[0003] Currently, traditional FFUs (Fan Filter Units) generally operate at a fixed fan speed, unable to dynamically adjust fan speed and energy consumption based on environmental cleanliness, and cannot monitor particulate matter concentration in the air in real time, thus failing to achieve closed-loop control. Furthermore, traditional FFUs typically employ multi-zone collaborative control, i.e., traditional electronic control methods, which suffer from response delays and energy waste. FFU filtration efficiency verification and system maintenance rely on manual inspection. In terms of communication, traditional FFUs use wired communication, resulting in wiring issues and inevitably increasing the difficulty of cleanroom renovations.

[0004] Therefore, traditional FFUs have the following problems: First, energy waste: Traditional FFUs operate in a fixed wind speed mode and cannot dynamically adjust power according to environmental cleanliness, resulting in cleanliness fluctuations and continuous high energy consumption; Second, single monitoring and control: Traditional FFUs usually use single-point monitoring or local control, which is difficult to comprehensively reflect the status of each area in the cleanroom, and is prone to local contamination or redundant operation in overly clean areas; Third, communication and wiring complexity: Traditional FFUs rely on wired communication, which has poor flexibility, high installation and wiring costs, and is susceptible to electromagnetic interference affecting signal stability. To address these issues, we propose a fan filtration device based on dynamic cleanliness adjustment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a fan filtration device based on dynamic adjustment of cleanliness, which can solve the problems of energy waste, single monitoring and calling, and complex communication and wiring of existing fan filtration devices.

[0007] To solve the above-mentioned technical problems, this utility model provides a fan filtration device based on dynamic cleanliness adjustment, adopting the following technical solution: It includes a fan static pressure box, a metal air inlet mesh cover on the top of the fan static pressure box, a brushless DC fan unit inside the fan static pressure box, a high-efficiency filter at the bottom of the fan static pressure box, a housing fixedly installed on the side of the fan static pressure box, an intelligent monitoring and control module, a power supply module, and a wireless transmission module inside the housing, a sealing plate on the top of the housing, and a group control system module on the side of the fan static pressure box.

[0008] Preferably, handles are fixedly installed at both ends of the top of the fan static pressure box.

[0009] Preferably, the brushless DC fan unit includes a metal bracket, which is fixedly installed in the middle of the static pressure box of the fan. A DC fan is installed on the metal bracket. The DC fan includes a brushless motor and a PWM speed control module. An impeller is fixedly connected to the output end of the brushless motor. An air guide ring is fixedly installed at the bottom of the metal air inlet screen. The air guide ring and the impeller are rotatably connected by a bearing.

[0010] Preferably, the high-efficiency filter has a square structure, the outer frame of the high-efficiency filter is anodized aluminum profile, and the filter element of the high-efficiency filter is any one of pleated glass fiber material, fully synthetic nanomaterial, antiviral coating material, etc.

[0011] Preferably, the intelligent monitoring and control module includes a dust particle counter and an intelligent module, wherein the intelligent module and the PWM speed control module are electrically connected.

[0012] Preferably, the power supply module is a power supply device for the intelligent FFU, and the intelligent monitoring and control module, the power supply module, and the wireless transmission module are integrated into a single design.

[0013] Preferably, the high-efficiency filter and the fan static pressure box are fixedly connected by four fixed right-angle connections arranged in a matrix.

[0014] In summary, this utility model has at least one of the following beneficial effects:

[0015] 1. The intelligent FFU provided by this utility model can adjust the operating mode of the FFU in real time, realize closed-loop control of cleanliness, reduce the operating energy consumption of the FFU, and realize intelligent maintenance of the FFU, solving the problems of energy waste, single monitoring and calling, and complex communication and wiring of existing fan filtration devices.

[0016] 2. The intelligent FFU provided by this utility model can be deployed in multiple areas. By monitoring the dust particle concentration in multiple areas in real time, the speed of the FFU fan can be dynamically adjusted. When the cleanliness meets the standard, the wind speed can be automatically reduced to reduce ineffective high air volume operation. Compared with the constant high wind speed mode of traditional FFU, energy consumption can be reduced by 20% to 40%.

[0017] 3. The intelligent FFU provided by this utility model can compare the concentration of environmental dust particles with the set threshold in real time. When the concentration exceeds the standard, the system responds in milliseconds and adjusts the air volume to control the cleanliness fluctuation within the standard range, avoiding the lag caused by the manual adjustment of traditional FFU, which leads to the cleanliness exceeding the standard.

[0018] 4. The intelligent FFU provided by this utility model can send operating data to a host computer. The host computer can observe real-time dynamic charts of parameters such as dust particle concentration, FFU wind speed, and pressure difference. Managers can remotely monitor the overall status, adjust the airflow threshold or intervene in the FFU operating mode in real time, and automatically trigger an alarm when the particle concentration is abnormal, thereby improving emergency response efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0020] Figure 1 This is a three-dimensional structural diagram of a fan filtration device based on dynamic cleanliness adjustment according to the present invention.

[0021] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a frontal planar structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the housing of this utility model;

[0025] Figure 6 This table compares the reduction in the number of airborne dust particles under typical operating conditions.

[0026] Figure 7 This is an energy consumption curve of the intelligent fan filter unit (FFU) of this utility model compared to the traditional FFU.

[0027] Explanation of reference numerals in the attached diagram: 1. Fan static pressure box; 2. Metal air inlet mesh cover; 3. Air guide ring; 4. Impeller; 5. Fixed right angle; 6. High-efficiency filter; 7. Group control system module; 8. Box; 9. Intelligent monitoring and control module; 10. Power supply module; 11. Wireless transmission module; 12. Sealing plate; 13. Handle. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 One embodiment of this utility model is a fan filtration device based on dynamic adjustment of cleanliness, which includes a fan static pressure box 1. The fan static pressure box 1 is made of lightweight and durable metal sheet, preferably one or more of aluminum-zinc coated sheet, stainless steel sheet, and aluminum alloy sheet. Such materials have excellent strength and do not cause secondary pollution to the environment. With good structural design, good airflow can be formed and noise can be significantly reduced.

[0030] Furthermore, a metal air inlet mesh cover 2 is installed on the top of the fan static pressure box 1. A brushless DC fan unit is installed inside the fan static pressure box 1. The installation of the metal air inlet mesh cover 2 can ensure the safe operation of the brushless DC fan unit and reduce human error accidents. Specifically, the brushless DC fan unit includes a metal bracket, which is fixedly installed in the middle of the fan static pressure box 1. A DC fan is installed on the metal bracket. The DC fan includes a brushless motor and a PWM speed control module. An impeller 4 is fixedly connected to the output end of the brushless motor. An air guide ring 3 is fixedly installed at the bottom of the metal air inlet mesh cover 2. The air guide ring 3 and the impeller 4 are rotatably connected by a bearing. The DC fan has low energy consumption, a compact design, and a light weight. Through special bearing design and fan blade airflow design, the brushless DC fan unit can maintain uniform airflow and low noise. In actual use, the brushless DC fan has a long service life and high safety.

[0031] Furthermore, a high-efficiency filter 6 is installed at the bottom of the fan static pressure box 1. The high-efficiency filter 6 has a square structure, and its outer frame is made of anodized aluminum profile, which has high chemical stability. The filter element of the high-efficiency filter 6 is any one of the following: pleated glass fiber material, fully synthetic nanomaterial, antiviral coating material, etc. Its filtration efficiency is preferably one or more of H13, H14, U15 and U16, which can effectively filter particles with a diameter of 0.3μm or larger in the air up to 99.997%. In order to improve its chemical filtration effect, it can also be combined with carbon cloth for a double-layer design. The carbon cloth is mixed with chemical filter material for removing specific gases, which can be widely used in clean room scenarios with acidic / alkaline pollutants.

[0032] Furthermore, a box 8 is fixedly installed on the side of the fan static pressure box 1. The box 8 contains an intelligent monitoring and control module 9, a power supply module 10, and a wireless transmission module 11. A sealing plate 12 is installed on the top of the box 8.

[0033] The intelligent monitoring and control module 9 includes a dust particle counter and an intelligent module. The dust particle counter monitors the number of dust particles in the air in real time to control the environmental cleanliness. Through algorithm design, dynamic thresholds are set according to different cleanliness levels. The system compares the monitoring data in real time. When the number of dust particles exceeds a certain value, a red light alarm is triggered on the dust particle counter. At the same time, through the intelligent module and the PWM speed control module, the DC fan speed is increased to improve the particulate matter removal efficiency. When the dust particle counter detects that the number of dust particles has dropped below the alarm value, the alarm is lifted, the DC fan speed is reduced, and energy is saved.

[0034] Among them, the power module 10 is the power supply device for the intelligent FFU, and different power protocols can be set according to different application scenarios.

[0035] Among them, the wireless transmission module 11 mainly realizes remote data transmission, which can transmit the operating data of one or more intelligent FFUs to the host computer. Through the relevant software on the host computer, the various operating statuses of the intelligent FFUs can be monitored and analyzed, and manual intervention and optimization can be performed when necessary.

[0036] Furthermore, the intelligent monitoring and control module 9, the power supply module 10, and the wireless transmission module 11 are integrated into a single unit, which increases the compactness of the structure and reduces the installation space. Once integrated, they can be externally mounted on the side of the fan static pressure box 1.

[0037] Furthermore, a group control system module 7 is installed on the side of the fan static pressure box 1. The group control system module 7 can control multiple intelligent FFUs. After they are connected to the Internet in parallel, they can be controlled by multiple terminals through an adapter. Through the group control system and an external host computer, operators can manually intervene in the regulation of multiple intelligent FFUs. Based on real-time monitoring of the operating status of intelligent FFUs, the operation of multiple intelligent FFUs can be manually adjusted according to actual needs.

[0038] In summary, the intelligent FFU provided by this utility model can adjust the operating mode of the FFU in real time, realize closed-loop control of cleanliness, reduce the operating energy consumption of the FFU, and realize intelligent maintenance of the FFU, thus solving the problems of energy waste, single monitoring and calling, and complex communication and wiring of existing fan filtration devices.

[0039] Furthermore, handles 13 are fixedly installed at both ends of the top of the fan static pressure box 1, which facilitates the handling of the fan filter device.

[0040] Furthermore, the high-efficiency filter 6 and the fan static pressure box 1 are fixedly connected by four fixed right angles 5 evenly arranged in a matrix. The setting of the fixed right angles 5 facilitates the disassembly and assembly of the high-efficiency filter 6.

[0041] See also Figure 6 The table below shows a comparison of the reduction in airborne dust particle number under typical operating conditions. Figure 7 The energy consumption curve of the intelligent fan filter unit (FFU) of this utility model compared with that of the traditional FFU is shown in the figure.

[0042] Working Principle: After the device is powered on, the intelligent monitoring and control module 9 first detects the number of dust particles in the air. When the number of dust particles in the air exceeds the standard, the alarm light flashes and the DC fan starts at full speed. After the DC fan starts at full speed, the intelligent monitoring and control module 9 monitors the number of dust particles in real time. If the number of dust particles in the air drops below the standard, the alarm light turns off and the intelligent monitoring and control module 9 simultaneously reduces the speed of the DC fan. During this period, the device's operating data will be collected in real time and transmitted back to the external computer interface via the wireless transmission module 11. External personnel can analyze the cloud data, remotely set parameters, and manually calibrate the operation of the intelligent FFU. While maintaining a high level of environmental cleanliness, this allows for flexible operation of the fan and reduces the energy consumption of the fan.

[0043] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fan filtration device based on dynamic cleanliness adjustment, comprising a fan static pressure box (1), characterized in that: The top of the fan static pressure box (1) is provided with a metal air inlet mesh cover (2), the inside of the fan static pressure box (1) is provided with a brushless DC fan unit, the bottom of the fan static pressure box (1) is provided with a high-efficiency filter (6), the side of the fan static pressure box (1) is fixedly provided with a box (8), the inside of the box (8) is provided with an intelligent monitoring and control module (9), a power supply module (10) and a wireless transmission module (11), the top of the box (8) is provided with a sealing plate (12), and the side of the fan static pressure box (1) is provided with a group control system module (7).

2. The fan filtration device based on dynamic cleanliness adjustment according to claim 1, characterized in that: Handles (13) are fixedly installed at both ends of the top of the static pressure box (1) of the fan.

3. The fan filtration device based on dynamic cleanliness adjustment according to claim 2, characterized in that: The brushless DC fan unit includes a metal bracket, which is fixedly installed in the middle of the fan static pressure box (1). A DC fan is installed on the metal bracket. The DC fan includes a brushless motor and a PWM speed control module. An impeller (4) is fixedly connected to the output end of the brushless motor. A guide ring (3) is fixedly installed at the bottom of the metal air inlet screen (2). The guide ring (3) and the impeller (4) are rotatably connected by a bearing.

4. The fan filtration device based on dynamic cleanliness adjustment according to claim 1, characterized in that: The high-efficiency filter (6) has a square structure. The outer frame of the high-efficiency filter (6) is an anodized aluminum profile. The filter element of the high-efficiency filter (6) is any one of densely pleated glass fiber material, fully synthetic nanomaterial, or antiviral coating material.

5. A fan filtration device based on dynamic cleanliness adjustment according to claim 3, characterized in that: The intelligent monitoring and control module (9) includes a dust particle counter and an intelligent module, which are electrically connected to the PWM speed control module.

6. A fan filtration device based on dynamic cleanliness adjustment according to claim 5, characterized in that: The power module (10) is the power supply device for the intelligent FFU. The intelligent monitoring and control module (9), the power module (10) and the wireless transmission module (11) are integrated into a single design.

7. A fan filtration device based on dynamic cleanliness adjustment according to claim 2, characterized in that: The high-efficiency filter (6) and the fan static pressure box (1) are fixedly connected by four fixed right angles (5) arranged in a matrix.

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