Fume Hood Butterfly Valve Control System Energy Save Remote 0.5m/s VAV Control System
Working principle of the variable air volume (VAV) control system: VAV control adjusts the supply and exhaust air volume of the system by changing the opening degree of the fume hood windows in the laboratory, thereby ensuring that the fume hood surface velocity can always be precisely controlled at 0.3-0.5 m/s regardless of the window opening degree.
5.0
Delivery time:
15
Moq:
1
design customization
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working principle
Single-channel VAV butterfly valve control system:
The system consists of a fume hood controller, a face velocity sensor, an analog fast actuator, a butterfly valve, and a power control box. After the fan duct is installed, as the fume hood operates, the air velocity flowing into the fume hood changes with the adjustment of the fume hood window height. The face velocity sensor transmits the measured air velocity information to the fume hood controller with a response time of less than 1 second. The fume hood controller calculates the face velocity using a closed-loop PID controller, referring to the previously set face velocity value (generally set between 0.4-0.6 s/m), and quickly issues a command to the analog fast actuator to rapidly adjust the butterfly valve angle, increasing or decreasing the valve angle to achieve the set face velocity range. The entire response process does not exceed 1 second. Simultaneously, the fast actuator's operating time (0°-90° operating time) must not exceed 2 seconds to quickly operate the valve and promptly return to the set air velocity value, preventing exhaust gas from the fume hood from overflowing into the room.
Dual-channel VAV butterfly valve control system:
The system consists of a fume hood controller, face velocity sensor, displacement sensor, analog fast actuator and butterfly valve, and power control box. After the fan and duct are installed, when the fume hood is running, as the height of the fume hood window is adjusted, the displacement sensor first detects the height of the fume hood window and quickly adjusts the angle of the fume hood butterfly valve via a signal. When the position of the fume hood window remains unchanged, the face velocity sensor measures the face velocity of the fume hood and makes precise fine adjustments, further finely adjusting the valve angle to return to the initially set face velocity value.
Detail presentation
玻璃
侧面
台面
Product parameter
|
Model |
Single-person single-sided clean bench (horizontal air supply) |
Single-person single-sided clean bench (vertical air supply) |
Double-person single-sided clean bench (horizontal air supply) |
Double-person single-sided clean bench (vertical air supply) |
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Cleanliness level |
100 level @ ≥ 0.5 μm (US Federal 209E) |
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Bacteria colony count |
≤ 0.5/dish. hour (φ90mm culture dish) |
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Average wind speed |
0.3m~0.6/m/s (fast and slow dual speed) |
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Noise |
≤ 62dB (A) |
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Vibration half-peak value |
< 0.5um (x.y.z direction) |
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Illumination |
≥ 300LX |
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Power supply |
AC single phase 220V/50Hz |
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Power consumption |
200W |
400W |
400W |
800W |
|
Weight |
≤85kg |
≤150kg |
≤150kg |
≤250kg |
|
High efficiency filter specifications and quantity |
695x600x50x① |
865x558x50x① |
1135x600x50x① |
1355x558x50x① |
|
Fluorescent lamp/UV lamp specifications and quantity |
20Wx①/20Wx① |
20Wx①/20Wx① |
30Wx①/30Wx① |
40Wx①/40Wx① |
|
Applicable number of people |
Single person single side |
Single person single side |
Single person single side |
Single person single side |
|
Dimensions |
850x580x1600mm |
1050x680x1600mm |
1300x580x1600mm |
1540x680x1600mm |
|
Work area dimensions |
700x400x500mm |
870x620x520mm |
1150x400x500mm |
1360x620x520mm |
FAQS
1
What should be paid special attention to when using the ultra-clean workbench?
The workbench should be located in a relatively clean workroom (preferably in a primary cleanroom of 100,000 or 300,000 levels), plug in the power supply, and turn it on according to the function shown on the control panel. Before starting up, the working area and shell of the clean bench should be carefully cleaned to remove the dust on the surface. It can be used normally ten minutes after starting up.
2
What is the maintenance cycle of the primary filter?
According to the actual situation, the primary filter should be removed and cleaned regularly, and the cleaning cycle is generally 3 to 6 months. (If it is not cleaned for a long time, dust accumulation will lead to insufficient air intake and reduce the cleaning effect).
3
What is the service life of the high-efficiency filter?
Generally, when the fan working voltage is adjusted to the highest point after eighteen months of use, if the ideal wind speed cannot be achieved, it means that the high-efficiency air filter has too much dust accumulation (the filter holes on the filter material are basically blocked and should be updated in time). Generally, the service life of the high-efficiency air filter is eighteen months.
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