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Exhaust and smoke prevention system with conversion of positive pressure and negative pressure applied to toilets of high-rise residential buildings

A technology for high-rise residential buildings and toilets, which is applied in ventilation systems, heating and ventilation control systems, heating and ventilation safety systems, etc., and can solve problems such as obliteration and unusability of air outlets

Pending Publication Date: 2017-11-10
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is applicable to when the fire just broke out and the fire is not big. If the fire is too big, the gas outlet will be obliterated by the fire and cannot be used.

Method used

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  • Exhaust and smoke prevention system with conversion of positive pressure and negative pressure applied to toilets of high-rise residential buildings
  • Exhaust and smoke prevention system with conversion of positive pressure and negative pressure applied to toilets of high-rise residential buildings
  • Exhaust and smoke prevention system with conversion of positive pressure and negative pressure applied to toilets of high-rise residential buildings

Examples

Experimental program
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Embodiment

[0020] Example: such as figure 2 As shown, the exhaust and smoke prevention system of a high-rise residential building includes a ventilation shaft (1), an air duct (2-1) connected to the shaft (1) and a fire control valve (3), and an air duct (2-2) connected to the fire control Valve (3) and the forward and reverse axial flow fans (4) and air pipes (2-3) installed in the washrooms of each resident are connected with forward and reverse axial flow fans (4) and tees (2-4), tees ( 2-4) Connect the exhaust pipe (5-1) and the pressurized air supply pipe (8-1), and the exhaust pipe (5-1) connect the tee (2-4) and the exhaust check valve (6) , the exhaust pipe (5-2) is connected to the check valve (6) and the air outlet (7), the pressurized air supply pipe (8-1) is connected to the tee (2-4) and the elbow (8-2) 1. The pressurized air supply pipe (8-3) is connected with the elbow (8-2) and the pressurized air supply check valve (9), and the pressurized air supply pipe (8-4) is conn...

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Abstract

The invention discloses an exhaust and smoke prevention system with conversion of positive pressure and negative pressure applied to toilets of high-rise residential buildings. The system comprises a normal toilet exhaust system, and the normal toilet exhaust system comprises an exhaust pipe and an exhaust fan. The system is characterized in that the exhaust fan is a dual-use fan, after a fire happens, a smoke sensor perceives the fire and then makes a linkage, and at this time, the fan rotates reversely and is in a pressurization air supply state. Escaping personnel hide in toilets and can close toilet doors to prevent invasion of a big fire, wide mouthed slot air supply outlets are formed above the toilet doors to conduct pressurization air supplying at the same time, positive pressure is formed in the toilets, smoke can be prevented from entering the toilets, and smoke poisoning is avoided. The exhaust and smoke prevention system of the toilets can strive for rescue time for stranded personnel who cannot escape timely.

Description

technical field [0001] This patent relates to an exhaust and smoke prevention system, in particular to an exhaust and smoke prevention system for toilets in high-rise residential buildings, and belongs to the fields of building environment and heating, ventilation and air conditioning. Background technique [0002] At present, high-rise residential buildings are provided with fire protection systems such as fire hydrants and manual fire extinguishers, but there are still many loopholes. When a fire occurs, it cannot be extinguished in time and effectively, and this phenomenon occurs from time to time. According to statistics, more than 80% of people who died in a fire belonged to smoke suffocation. According to my country's current "Code for Fire Protection in Building Design" (GB50016-2014), various toxic components such as carbon monoxide and carbon dioxide contained in fire smoke, as well as high temperature and lack of oxygen will cause great harm to the human body. Fo...

Claims

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Application Information

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IPC IPC(8): F24F7/08F24F11/00F24F11/02
CPCF24F7/08
Inventor 周斌毛欣悦李斐王瑜刘慧芳丁丽丽徐阳
Owner NANJING UNIV OF TECH
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