Gas firing wall stove with balanced forced air exhausting system

Abstract

The invention comprises a shell, a hearth, a burner disposed in the hearth, a gas control valve and a gas pipeline on the burner, a control system on the shell and a balanced forced air-exhausting system in the hearth. The balanced forced air-exhausting system includes a smoke-collecting hood, a forced exhausting fan, a smoke-discharging pipe, a smoke-discharging and air-intaking switching disc, a double-layer flue pipe, a fresh air distributing chamber, a fresh air pipeline and a fresh air outlet. Because of using the balanced forced air-exhausting system, the invention can achieve the goal of forced smoke-discharging and intaking fresh air.

Description

technical field [0001] The invention relates to a gas fireplace, in particular to a gas fireplace with a balanced forced air exhaust system. Background technique [0002] With the energy crisis getting more and more attention, people try to maximize the use of the cheapest and most efficient fuel for heating in winter. Therefore, heating with gas fireplaces has become more prosperous, and has quietly entered Chinese families. For a long time, how to minimize heat loss in the process of exhaust gas emission from gas fireplaces and at the same time fully protect the safety of users has been a common research topic for fireplace manufacturers. At present, the exhaust gas exhaust system commonly used by fireplace manufacturers in North America and Europe is a direct exhaust system, such as the U.S. patent with the publication number US4793322, which has a structure with a direct exhaust system, which includes double-layer smoke pipes and double-layer smoke pipes. The outer lay...

AI Technical Summary

Problems solved by technology

Although the structure of this straight exhaust system reduces a certain amount of heat loss, this exhaust method is vulnerable to the air pressure, wind speed and wind direction of the external natural wind and the length of the vertically upward smoke pipe due to the low smoke exhaust wind speed. With the influence of draft, sometimes it will cause poor exhaust emission

In summary, this kind of gas fireplace with a straight exhaust system has the following defects: First, in order to exhaust smoothly, the diameter of its exhaust pipe must be large, and the radius of the pipe turning must also be large, and there must be a vertical The part of the smoke pipe with a length ≥ 4m is used as a draft; the second is that the smoke exhaust wind speed is small, and an anti-backflow device must be installed

will cause a decrease in thermal efficiency

Moreover, this kind of gas fireplace cannot be installed in an apartment without a flue, and the interior with many turns of the flue is also subject to installation restrictions.

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