An adaptive double gas source gas heater

Abstract

The invention discloses a self-adaptive dual-gas-supply fuel gas warmer. The self-adaptive dual-gas-supply fuel gas warmer comprises a combustor, an ignition control assembly, a first ODS (oxygen depletion safety) protector, a second ODS protector, a main gas pipe, a first control valve and a second control valve, wherein the first ODS protector is applicable to natural gas; the second ODS protector is applicable to liquefied gas; the main gas pipe is separated into a pilot flame gas supply pipeline and a combustor gas supply pipeline after passing through a main control valve, the pilot flame gas supply pipeline is separated into a first pilot flame branch and a second pilot flame branch, and the combustor gas supply pipeline is separated into a first combustor branch and a second combustor branch; the first control valve is arranged on the first pilot flame branch and used for controlling opening and closing of the first pilot flame branch; and the second control valve is arranged on that first combustor branch and used for opening and closing of the first combustor branch. The self-adaptive dual-gas-supply fuel gas warmer has the advantages that by means of cooperation between the two control valves on the first pilot flame branch as well as the first combustor branch and the two ODS protectors, automatic judgment of gas supplies is achieved and corresponding pipelines can be opened or closed automatically during ignition.

Description

technical field [0001] The invention relates to the technical field of outdoor heaters, in particular to an adaptive double gas source gas heater without manual switching. Background technique [0002] Most of the existing gas heaters use burning gas for heating. These outdoor gas heaters have the characteristics of high efficiency and cleanliness, and become the best utensils for outdoor heating. Gas heaters are divided into liquefied gas type and natural gas type according to the applicable fuel. Of course, there are also heaters that can use both liquefied gas and natural gas. We call them applicable gas heaters or dual gas source gas heaters; The calorific value of each gas is different, and the air pressure and gas volume will also be different. Therefore, the internal structure of the heater must be adjusted accordingly. At present, most of the applicable gas heaters on the market are pre-arranged with two systems in the heater. When replacing the gas source, it is ne...

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Problems solved by technology

[0003] The problem with the above applicable gas heaters is that if the manual switch is misoperated, the load on the heater will rise sharply and cause a fire risk. Therefore, it is generally considered to install an overheating protection device on the heater. Cut off the air supply to the main valve in minutes to reduce the risk of fire

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