Adaptive full premixed combustion gas hot water device
A gas-fired hot water, fully premixed technology, which is applied in the fields of gas water heaters and gas heating water heaters, can solve the problems of decreased thermal efficiency, normal use of users, and high emission of harmful smoke.
Active Publication Date: 2017-01-25
GUANGDONG VANWARD NEW ELECTRIC CO LTD
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Problems solved by technology
Since the mixture of gas and air cannot be burned in the best state at this time, there will be adverse phenomena such as thermal efficiency decline, abnormal combustion noise, and high emission of harmful smoke. , the original fully premixed combustion will have the defect of poor combustion conditions
Method used
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specific Embodiment approach
[0021] Specific implementation method: the following uses CO 2 The sensor is taken as the gas heating water heater of gas sensor as example, the present invention is further described, CO sensor, O 2 The principle of the sensor and the CO 2 The sensors are the same without repeating the statement.
[0022] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, this embodiment includes heat exchanger 1, CO 2 Sensor 2, burner 3, fan 4, control circuit module 5, air inlet pipe 41, gas pipe 8, gas regulating valve 6, the inner cavity of heat exchanger 1 forms a closed combustion chamber 11, CO 2 The sensor 2 and the burner 3 are arranged in the closed combustion chamber 11, the air outlet of the fan 4 is connected with the air inlet of the burner 3, the air inlet of the fan 4 is provided with an air inlet pipe 41, and a venturi is arranged in the air inlet pipe 41 The inner pipe 42, the gas outlet of the gas pipe 8 communicates with the Venturi...
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A gas water heating device capable of realizing self-adaptive fully-premixed combustion comprises a heat exchanger, a combustor, a fan, a gas adjusting valve, a gas pipe, a gas sensor, a gas signal detection unit and a control circuit module. An inner cavity of the heat exchanger forms a closed combustion chamber, the combustor and the gas sensor are arranged in the closed combustion chamber, the fan and the gas pipe are communicated with the combustor respectively, the gas adjusting valve is serially connected on the gas pipe, and the gas adjusting valve, the fan, the gas signal detection unit and the gas sensor are electrically connected with the control circuit module respectively. The gas sensor is adopted to detect content of specific gas in smoke after gas combustion, so that a ratio between gas and air can be effectively adjusted to be a new air-gas ratio when gas composition changes to achieve the object of complete combustion of gas.
Description
technical field [0001] The invention relates to a self-adaptive fully premixed combustion gas water heating device, especially suitable for gas heating water heaters, gas water heaters and the like. Background technique [0002] In the prior art, gas heating water heaters, gas water heaters, etc. can be divided into partial premix combustion models and full premix combustion models according to the combustion methods of gas, especially the mixing methods of gas and air. Among them, fully premixed combustion has the following characteristics: [0003] Gas and air are fully mixed according to the chemical equivalent ratio before combustion, and then combusted, which has many advantages, such as sufficient gas combustion, high volumetric heat intensity, high thermal efficiency, and low harmful smoke emission indicators. But when the composition of the gas changes, the air-fuel ratio of the gas combustion changes, and the gas combustion will be abnormal. Since the mixture of g...
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IPC IPC(8): F24H9/20
Inventor 叶远璋孙云帆乔中利欧金桥
Owner GUANGDONG VANWARD NEW ELECTRIC CO LTD