Controls for ventilation and exhaust ducts and fans

A duct and fan technology, applied in the field of ventilation, exhaust duct and fan control devices, can solve problems such as lack of structuring

Inactive Publication Date: 2009-05-27
苏剑蕾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, each damper operates independently and there is no structured way to use and operate the dampers and ducted fans to prevent the spread of fire

Method used

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  • Controls for ventilation and exhaust ducts and fans
  • Controls for ventilation and exhaust ducts and fans
  • Controls for ventilation and exhaust ducts and fans

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] Such as figure 1 , 2 A commercial range 10 with a fume extraction hood 12 is shown. A duct 14 connects the fume extraction hood 12 with the ambient atmosphere 16 . Although a stove 10 has been shown, it may refer to any commercial or industrial facility that produces or uses smoke and / or dense smoke and / or noxious gases, a parking lot that emits automobile exhaust, and the like.

[0046] The range 10 has a hob 18 used in cooking food and a plurality of ovens 20 also used in cooking food.

[0047] The fume hood 12 has a control panel 22 for controlling the operation of the fume hood 12 , including controlling the operation of the fan assembly 24 . Although a single fan assembly 24 is shown, two or more fan assemblies may be provided. The fan assembly 24 may be of any suitable shape and type. More preferably, the fan assembly 24 is multi-stage variable speed.

[0048] exist figure 2 The valve 26 within the conduit 14 is shown in an open position and is disposed ne...

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PUM

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Abstract

A ventilation or exhaust system, having ducting, and a fan assembly for placement in ducting of a ventilation or exhaust system for an environment space. The fan assembly has a motor having an output shaft, a fan mounted on the output shaft, and a brake mounted for operation on the motor. The brake is operable for stopping rotation of the motor upon a detection of a prescribed situation one or more of: the environmental space, and the ducting. Also included is a valve assembly having a valve member for placement in the ducting for movement between a first position where the ducting is substantially open, and a second position where the ducting is substantially closed. The valve member is adapted to move from the first position to the second position in response to at least one detection of a prescribed situation. At least one detector is provided for detecting a prescribed situation, the detector being for controlling the operation of the brake of the fan assembly, and the valve assembly, in response to the detecting.

Description

technical field [0001] This invention relates to controls for ventilation, exhaust ducts, and fans, and more preferably but not exclusively, to fans in offices, commercial restaurants, factories, warehouses, retail areas, industrial establishments, parking lots, cooling tower fans, and the like. This device used in the place. Background technique [0002] Smoke exhaust devices are usually used in commercial restaurants, factories, industrial enterprises, parking lots, cooling tower fans, etc. to exhaust dense smoke and / or smoke screens and / or gases generated during cooking, production, and vehicle exhaust. Some exhaust systems may be provided with a cover over the stove or production facility, and these exhaust systems are also provided with ducts communicating the cover with the outside atmosphere. One or more fans are provided in the duct or cover for forcing smoke and / or smoke through the duct. Filters may be used to filter out the main pollutants in the smoke and / or sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20F24F7/02F24B7/02F24F7/06
CPCF24F2007/001F24F7/06F24C15/2021
Inventor 苏剑蕾
Owner 苏剑蕾
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