Gas-induction self-adaptation premixed combustion heater arranged in waterway system

Abstract

The invention discloses a gas-induction self-adaptation premixed combustion heater arranged in a waterway system, which comprises a heat exchanger, a gas induction probe, a combustor, a blower, a control circuit, a combustible gas proportioning valve, an air inlet pipe, a Venturi pipe, a gas induction detection circuit and a combustible gas pipe, wherein the heat exchanger is formed by arranging a plurality of plate-shaped communicated fluid cavities in parallel; a cylindrical combustion space is formed in the heat exchanger; the combustor is arranged in the combustion space; the combustor is connected with an air outlet of the blower; the combustible gas proportioning valve is connected to the combustible gas pipe; the combustible gas proportioning valve, blower, control circuit, gas induction detection circuit and gas induction probe are electrically connected in a wired mode or connected through wireless signals; the gas induction probe is arranged on the fluid cavities outside the combustion space; an air inlet of the blower is provided with the air inlet pipe; and a Venturi pipe for detecting air flow rate is arranged in the air inlet pipe. The gas-induction self-adaptation premixed combustion heater is easy to manufacture and implement, and has the advantages of high heat exchange rate, accurate temperature measurement, complete combustion, high durability and the like.

Description

【Technical field】 [0001] The invention relates to a gas-fired water heating device, in particular to a gas induction self-adaptive premixed combustion heating device placed in a waterway system. 【Background technique】 [0002] Gas heating water heaters, gas water heaters, etc. can be divided into partial premixed combustion models and full premixed combustion models according to the combustion method of gas, especially the mixing method of gas and air. Because in the existing technology, it is placed in the combustion chamber, the highest temperature of premixed combustion can reach about 1400 degrees, and the ultra-high temperature environment will shorten the life of the sensor, and the temperature is detected in the combustion chamber, and the temperature in the combustion chamber fluctuates dynamically The high efficiency makes accurate detection and adjustment impossible. It is often necessary to add multi-stage filter circuits, which will affect the safety of use, extr...

AI Technical Summary

Problems solved by technology

Because in the existing technology, it is placed in the combustion chamber, the highest temperature of premixed combustion can reach about 1400 degrees, and the ultra-high temperature environment will shorten the life of the sensor, and the temperature is detected in the combustion chamber, and the temperature in the combustion chamber fluctuates dynamically High efficiency, unable to carry out accurate detection and adjustment, often need to add multi-stage filter circuit, and will lead to the use of safety is affected, the service life is extremely low, unable to form a stable mass production

Moreover, the heat exchange effect of the existing burner is not good, the heat exchange area is small, and the position of the combustion chamber and the water system and the direction of the fluid arrangement limit the thermal efficiency.

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