Building public flue smoke discharging system and control method thereof

A technology of public flue and smoke exhaust system, which is applied in the field of public flue of buildings, can solve the problems that the negative pressure cannot be effectively transmitted, the system exhaust resistance increases, and the balance of fan dynamics is destroyed, so as to solve the problem of poor smoke exhaust, Improves pressure distribution and ensures safety

Active Publication Date: 2019-09-24
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, grease particles are easy to accumulate on the blades of the main fan on the roof, which not only damages the dynamic balance of the fan, resulting in increased noise and vibration, but also requires regular cleaning and maintenance, which is troublesome to maintain
Moreover, the main fan is set on the common exhaust channel, which will increase the exhaust resistance of the system
Especially when the number of floors is greater than 35, the negative pressure generated by the main fan on the top floor cannot be effectively transmitted, and pressure leakage occurs, which has almost zero impact on the smoke exhaust of low-rise users, which instead causes energy waste

Method used

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  • Building public flue smoke discharging system and control method thereof
  • Building public flue smoke discharging system and control method thereof
  • Building public flue smoke discharging system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the smoke exhaust system for the public flue of the building in this embodiment includes range hoods 1 installed on different floors, and the air outlets of each range hood 1 are communicated with the public flue 3 through their respective smoke pipes 2. A fire damper 11 is installed at the outlet of the smoke pipe 2, which is prior art and will not be described in detail.

[0043] A heater 4 is installed at the bottom of the public flue 3 . The heater in this embodiment adopts electric heating, and the soot gas in the public flue 3 is heated by the heater 4 . A second temperature sensor 6 and a third temperature sensor 7 are installed in the public flue 3. The second temperature sensor 6 is installed near the oil fume outlet to detect the temperature of the oil fume gas at the outlet in the public flue. The third temperature sensor 7 is arranged above the heater 4 and close to the heater 4, and is used for detecting the temperature of the ga...

Embodiment 2

[0061] Such as Figure 5 and Figure 6 As shown, this embodiment adds an air inlet device 10 on the basis of Embodiment 1. The air inlet device 10 is installed at the bottom of the public flue 3 and is located below the heater 4, and the air inlet of the air inlet device 10 faces the public Inside the flue 3.

[0062] The control method of the building public flue smoke exhaust system in this embodiment includes the following steps:

[0063] ①. After installing the system, enter the total number of floors N;

[0064] ②, start the range hood, collect the start signal to count n, and calculate the start rate η=n / N;

[0065] ③. When the operating rate η<20%, the heater does not work;

[0066] ④. When the operating rate η>20%, the heater works;

[0067] ⑤. When 20%≤η<50%, the heater works and the air inlet device does not work;

[0068] ⑥. When η≥50%, the heater works and the air inlet device works synchronously;

[0069] ⑦. On the basis of the heater working, when the indo...

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PUM

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Abstract

A building public flue smoke discharging system comprises a public flue and extractor hoods installed on various floors; a first temperature sensor used for detecting an outdoor temperature is installed on a roof; a heater, a second temperature sensor and a third temperature sensor are installed in the public flue; the second temperature sensor is used for detecting the lampblack temperature in the public flue; the third temperature sensor is used for detecting the temperature of gas after being heated by the heater in the public flue; a main control system reads the reading of the first temperature sensor; and a heater control system reads the reading of the second temperature sensor and the third temperature sensor and receives the reading, from the main control system, of the first temperature sensor, and thus can control the heater. The building public flue smoke discharging system has the beneficial effects that the building public flue smoke discharging system can change the temperature difference of the temperature of lampblack gas in the flue and the outdoor environment by controlling the heater, the flue heat pressure effect is enhanced, flue pressure distribution is improved, and the flue smoke discharging capacity is improved.

Description

technical field [0001] The invention relates to a public flue for a building, in particular to a smoke exhaust system for a public flue for a building and a control method thereof. Background technique [0002] At present, there are more and more high-rise residential buildings, and most of the high-rise smoke exhaust uses public flues to exhaust the smoke. The outlets of high-rise public flues are generally set on the top of the floor, and the power provided by the range hood is limited, resulting in unsatisfactory smoke exhaust effects. During peak cooking hours, low-floor oil fumes cannot be exhausted, and even oil fumes in the flue may flow backward. At present, in order to solve the problem of poor smoke exhaust of existing range hoods, people have proposed the concept of "central purification system", which generates power through the main fan placed at the top of the public flue, and cooperates with the range hood fan on the user side to Improve smoke exhaust effect....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20E04F17/02
CPCE04F17/02F24C15/2021
Inventor 梁雪斐甘从林于克阳
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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