Fire detection method of multi-split equipment and multi-split system

A multi-connection system and multi-connection technology, applied in the multi-connection field, can solve problems such as insufficient detection time, achieve the effects of saving costs, avoiding misjudgments, and improving response speed

Pending Publication Date: 2020-12-22
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the embodiment of the present invention, a fire detection method and a multi-line system of multi-line equipment are provided to solve the problem in the prior art that the fire detection stage is in the middle and late stages of a fire, and the detection is not timely enough

Method used

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  • Fire detection method of multi-split equipment and multi-split system
  • Fire detection method of multi-split equipment and multi-split system
  • Fire detection method of multi-split equipment and multi-split system

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Embodiment 1

[0037] As an indispensable role in building construction, air conditioners have always been regarded as equipment only used for indoor air conditioning. In fact, air conditioning systems are distributed in various areas of the room. The air return port of the indoor unit is a very good smoke detection point. , The air outlet of the indoor unit is located at a higher position in the room and there is no obstruction in front, so there are fewer blind spots. Based on this, if the air conditioning system is used as fire monitoring, it has better advantages. At the same time, the internal communication network of the air-conditioning system can be used for fire-fighting communication to build a distributed fire-fighting network, saving communication materials and reducing labor costs. Optional embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] figure 1 is a flow chart of a fire detection method for multi-...

Embodiment 2

[0054] The present invention also provides a multi-connection system for realizing fire detection, which can realize the fire detection method introduced in the above-mentioned embodiments. Figure 4 is a topology diagram of a multi-line system according to an embodiment of the present invention, such as Figure 4 As shown, the multi-split system includes multiple outdoor units, and multiple indoor units connected to each outdoor unit. For example, each floor ( Figure 4 1F, 2F...nF shown in , where n is the total number of floors), set up a multi-connected outdoor unit, set up an indoor unit in each room of each floor, and the indoor unit has a return air outlet and an air outlet. The indoor unit is used to collect air parameters and send them to the fire control center through the connected outdoor unit. A detection cavity is provided at the air return port of the indoor unit, and a combustible gas sensor, a smoke sensor and a temperature sensor are built in the detection ...

Embodiment 3

[0062] Figure 5 It is a flow chart of fire detection and linkage alarm according to an embodiment of the present invention, such as Figure 5 As shown, the process includes the following steps:

[0063] 1) Utilize the air circulation power of the air conditioner to collect air samples from the return air outlet and send them into the detection chamber. A detection cavity is provided at the return air outlet of the air conditioner in each room, and a combustible gas sensor, a smoke sensor, and a temperature sensor are built in the cavity. Using the air circulation power of the air conditioner, the indoor air is actively sampled and sent into the detection chamber for real-time detection and analysis.

[0064] 2) Compare the combustible gas (such as CO) concentration, smoke concentration, temperature and other parameters in the air sample with their respective alarm thresholds to determine whether at least one sensor data reaches the alarm threshold.

[0065] 3) If the data ...

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Abstract

The invention discloses a fire detection method of multi-split equipment and a multi-split system. The method comprises the steps: collecting air parameters at each indoor unit, and judging whether afire occurs or not according to the air parameters; if the fire occurs, judging the stage of the fire according to the air parameters; and executing a corresponding fire-fighting strategy according tothe stage of the fire. Air is actively collected through an air conditioner air return opening for detection, and the fire detection response speed is increased. The stage of the current fire disaster is judged by combining multiple sensors, so that misjudgment on the fire behavior during escape and rescue is avoided. The fire detection system can cover the whole building by directly applying themulti-split equipment without independently purchasing fire-fighting products and wiring and installing, so that the cost is saved. Through fire-fighting linkage alarm, fire alarm information can bepushed in time, people are evacuated as soon as possible, trapped people are guided to avoid a dangerous area, and a safe escape route is selected.

Description

technical field [0001] The present invention relates to the field of multi-connection technology, in particular to a fire detection method of multi-connection equipment and a multi-connection system. Background technique [0002] Fire can generally be divided into four stages, ① smoldering stage: produce flammable gas (mainly CO) and a small amount of smoke; ②visible smoke stage: produce visible dense smoke; ③flame stage: produce open flame, temperature rise; ④ violent combustion Stage: The combustion range of the open flame spreads, the temperature rises rapidly, and a large amount of smoke and carbon dioxide are produced. The traditional fire alarm system is a combination of smoke detectors and heat detectors, which alarm in the visible smoke stage and flame stage respectively. The detection coverage of these two methods is not comprehensive, and the detection stage is in the middle and late stages of the fire, leaving too little time for evacuation of the crowd and fire ...

Claims

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Application Information

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IPC IPC(8): G08B17/06G08B17/10G08B17/117G08B25/01G08B27/00G08B7/06A62C2/06
CPCG08B17/06G08B17/10G08B17/117G08B25/014G08B27/00G08B7/062A62C2/06
Inventor 苏玉海牟桂贤贺寰振刘文达王亦心
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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