Gas heater and its combustion unit
A technology of combustion unit and heater, applied in air heaters, lighting and heating equipment, fluid heaters, etc., can solve the problems of partial combustion heat exchangers, uneven distribution of combustion flames, and high nozzle failure rate, and achieve combustion efficiency. High, ensure the effect of uniform burning state
Active Publication Date: 2016-08-24
HENAN QIANFENG HVAC TECH
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Problems solved by technology
Because each heat exchanger corresponds to a nozzle, it is difficult for the nozzle to be completely aligned with the inlet of the heat exchanger, and because of the influence of the airflow caused by the external air flow, the distribution of the combustion flame is very uneven, the flame is not straight, and it is easy to burn and replace The inner wall of the heater is damaged, and the failure rate of multiple nozzles is high, which makes installation and maintenance more troublesome
Method used
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Embodiment Construction
[0026] An embodiment of a gas heater. In Figures 1 to 8, a heat exchange port is opened on the shell 1, and a heat exchange fan 2 is installed on the heat exchange port. The heat exchange fan 2 can remove the heat generated by the heat exchanger. Blow out to achieve heating effect. The casing 1 is also provided with a fresh air inlet 3 for delivering fresh air into the casing and a combustion tail gas discharge port 4 for discharging combustion exhaust gas to the outside. A combustion unit and a heat exchange unit are arranged inside the shell, and the heat exchange unit has heat exchangers stacked together. One end of the air mixing pipe 5 of the combustion unit is fixedly provided with a gas nozzle 6, which is connected to the gas pipe 7, and the other end of the air mixing pipe 5 is sealed and connected to the air mixing box 8 which is a square sealed box. One side wall of the mixing box 8 is provided with a strip-shaped opening, and a flame straightening structure 9 is fix...
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The invention discloses a gas-fired warm air heater and a combustion unit thereof. The combustion unit of the gas-fired warm air heater comprises an air mixing duct, wherein a gas spray nozzle is fixed to one end of the air mixing duct; the other end of the air mixing duct is connected with an air mixing box in a sealed way; the air mixing box is a square sealed box body; a strip-shaped opening is formed in one side wall of the air mixing box; a flame averaging and straightening structure is fixedly arranged on the strip-shaped opening and comprises two straightening plate brackets; bracket connecting beams are distributed between the two straightening plate brackets; the two ends of each bracket connecting beam are respectively fixed to the corresponding straightening plate brackets; flame averaging and straightening plates are uniformly distributed between the adjacent two bracket connecting beams; the flame averaging and straightening plates are parallel to one another; each flame averaging and straightening plate is compressed and arranged between two straightening plate brackets; the inlet of each heat exchanger of the gas-fired warm air heater faces the flame averaging and straightening plates; the two straightening plate brackets are fixed to the air mixing box. The gas-fired warm air heater has only one spraying nozzle, so that the problem of high failure rate caused by a plurality of spraying nozzles is avoided.
Description
Technical field [0001] The present invention relates to a device for burning gas to produce hot air, in particular to a gas heater. The invention also relates to a combustion unit of the gas heater. Background technique [0002] The heater is a common heating device, which generally has a casing, a heat exchanger, and a fan. The casing is also provided with a fresh air inlet for conveying fresh air into the casing and a combustion exhaust outlet for discharging combustion exhaust gas to the outside. A combustion unit heat exchange unit and a heat exchange unit are arranged inside the shell. The main body of the combustion unit is a nozzle for burning gas, and the main body of the heat exchange unit is a heat exchanger. The heater in the prior art has a plurality of nozzles, and each nozzle is connected to a gas pipeline, and the gas pipeline extends from a hole opened in the shell and is connected to a gas source. Each nozzle corresponds to a heat exchanger, and the flame will b...
Claims
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IPC IPC(8): F24H3/06F24H9/18
Inventor 管仲海
Owner HENAN QIANFENG HVAC TECH