Intelligent flame pre-repair system and flame detection device
A flame detection device and flame detection technology, applied in the direction of burners, combustion types, combustion methods, etc., can solve the problems of difficult detection of flame changes, small change rate of flame signals, and inaccurate judgment of flame quality, etc., to achieve air volume adjustment Accurate ratio with gas, fast response to fluctuations, easy to leave the flame effect
Active Publication Date: 2017-04-19
A O SMITH (CHINA) WATER HEATER CO LTD
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Problems solved by technology
Very few use a single needle to detect the flame status of the burner to control the air volume of the burner and the ratio of gas to the best state. However, when the flame of the burner changes, the change rate of the flame signal is small, which is consistent with the entire combustion system. The test error is in the same order of magnitude, so the existing flame detection method is not easy to detect the change of the flame, it can only be used as a switch to detect whether it is burning, and cannot accurately judge the quality of the flame
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[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0033] In order to accurately judge the quality of the flame, and then control the ratio of the air volume of the burner to the gas to achieve an optimal state, an intelligent flame pre-repair system is provided in an embodiment of the present invention. figure 1 It is a schematic structural diagram of the intelligent combustion pre-repair system in the embodiment of the present invention. Such as figure 1 As shown, the intelligent flame pre-repair system includes:
[0034] Premix chamber 101, blower fan 102, gas pipeline 103, combustion surface 104, flame sensing n...
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The invention discloses an intelligent burning flame pre-restoration system and a flame detection device. The intelligent burning flame pre-restoration system comprises a premixing cavity, a fan for adjusting air capacity of the premixing cavity, and a gas pipeline for supplying gas to the premixing cavity, wherein the gas pipeline is provided with a gas control valve; a burning surface and a flame induction needle are arranged at an outlet of the premixing cavity; the intelligent burning flame pre-restoration system further comprises a controller; a signal output end of the controller is connected with the fan and the gas control valve; a signal input end of the controller is connected with the flame induction needle; a burning area and a flame detection area are arranged on the burning surface; in a burning process, when a matching ratio of gas to air deviates from a setting value, flame in the flame detection area is separated from the burning surface earlier than that of the burning area; and the flame induction needle is arranged in the flame detection area. With the adoption of the system and the device, the flame quality can be judged accurately, and further, the matching ratio of air volume to the gas is controlled to achieve an optimal state.
Description
technical field [0001] The invention relates to the field of combustion technology, in particular to an intelligent combustion flame pre-repair system and a flame detection device. Background technique [0002] Most of the existing gas water heaters use a single flame sensor needle to sense the presence or absence of flame signals, so as to judge whether the flame in the combustion chamber is "on" or "not on", instead of sensing and judging the quality of the flame. Very few use a single needle to detect the flame status of the burner to control the air volume of the burner and the ratio of gas to the best state. However, when the flame of the burner changes, the change rate of the flame signal is small, which is consistent with the entire combustion system. The test error is in the same order of magnitude, so the existing flame detection method is not easy to detect the change of the flame, and can only be used as a switch to detect whether it is burning, and cannot accurat...
Claims
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IPC IPC(8): F23D14/60
Inventor 周素娟窦俊毕大岩
Owner A O SMITH (CHINA) WATER HEATER CO LTD