Range hood and control method for preventing flame from entering range hood
The technology of a range hood and a control device is applied in the directions of removing range hood, heating method, household heating, etc., which can solve problems such as combustion and safety accidents, and achieve the effect of avoiding safety accidents and preventing flames from entering the range hood.
Inactive Publication Date: 2014-04-16
嵊州市法鸽电器有限公司
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Problems solved by technology
[0003] However, in use, it was found that due to the short distance between the position of the range hood of this structure and the frying pan, when the suction device is working, it is easy to inhale the flame or high-temperature oil fume, which may cause the flame to absorb oil. The internal combustion of the hood may cause safety accidents in severe cases
Method used
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Embodiment Construction
[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] see figure 1 , a range hood, including a body 1 with an air suction port 2, the body 1 is connected with an air suction device 4 through an exhaust pipe 5, and also includes a gas valve for opening or closing gas (the gas valve is not shown in the figure Shows).
[0017] A temperature sensor 3 is arranged in the exhaust pipe 5 . Of course, the temperature sensor 3 can also be installed at other suitable positions, and the temperature sensor 3 is used to detect the temperature change at the air suction port 2 when the flame enters the air suction port 2 .
[0018] The body 1 is also provided with a first control device (the first control device is not shown in the figure). The first control device is PLC, and of course it can also be other control units. The first control device is connected to the gas valve and the air suction devic...
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The invention discloses a range hood and a control method for preventing flame from entering the range hood. The range hood comprises a body with an air suction opening and a temperature sensor, wherein an air suction device and a fuel gas valve are also arranged in the body; when flame enters the air suction opening, the temperature sensor is used for detecting the temperature change at the air suction opening; the temperature sensor is connected with a first control device; and the first control device is connected with the fuel gas valve and the air suction device. The control method comprises the following steps of: (1) a reference temperature is set on the first control device; (2) the temperature sensor detects the temperature at the air suction opening; (3) the temperature sensor sends a signal to the first control device when the temperature at the air suction opening is larger than the reference temperature; and (5) the first control device controls the fuel gas valve or / and the air suction device to close. The control method disclosed by the invention can effectively prevent flame from entering the range hood, thereby effectively avoiding the occurrence of safe accident.
Description
technical field [0001] The invention relates to a range hood and a control method for preventing flames from entering the range hood. Background technique [0002] At present, there are various types of range hoods available on the market. The range hood developed by the applicant and sold on the market has a structure, "including a body, the body has a suction port, and the suction port is connected to the suction port through a pipeline. device, and the air suction device is connected with an air outlet". The range hood has been widely used due to its remarkable air suction effect. [0003] However, in use, it was found that due to the short distance between the position of the range hood of this structure and the frying pan, when the suction device is working, it is easy to inhale the flame or high-temperature oil fume, which may cause the flame to absorb oil. The internal combustion of the hood may cause safety accidents in severe cases. Contents of the invention ...
Claims
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IPC IPC(8): F24C15/20
Inventor 许强
Owner 嵊州市法鸽电器有限公司