Patent Application
20080176175
The present invention relates to a flame reaction material, particularly a flame reaction material for gas combustion appliances and a flame reaction member thereof.
The color of a flame produced by gas combustion appliances such as a torch, a lighter, a lighter for smoker's requisites or the like generally is blue or nacarat, and thus is simplex. In order to color the flame with a variety of vivid colors to make it more watchable and interesting, there is a need to develop a flame reaction material suitable for gas combustion appliances. Many corporations and people are carrying out this study. The flame reaction material should perform a flame reaction under high temperature of the burning gas flame to make the flame have the corresponding color. The principle of flame reaction is described as follows. When heated, peripheral electrons of a metal ion or atom obtain energy and thus the electrons are transition excited from lower energy level orbits to higher energy level orbits. These electrons located in the higher energy level orbits are highly unstable and instantly return to the lower energy level orbits again. In this “returning” process, the electrons release energy, normally in the form of light energy and thus different colors of flame are exhibited. For example, a gas combustion appliance was disclosed in U.S. Pat. No. 5,743,724 (Title: Flame Reaction Member for Gas Combustion Appliances and A Process for Producing the Same; U.S. Pat. No. 5,743,724; Date of patent: Apr. 28, 1998), comprising a fuel storage tank, a combustion cylinder, a nozzle for jetting gas from the fuel storage tank into the combustion cylinder, an igniter for igniting fuel gas jetted into the combustion cylinder, and a flame reaction member comprising a flame reaction material disposed with the combustion cylinder so as to be heated by a gas flame within the combustion cylinder so as to produce a flame reaction which colors the gas flame by the flame reaction, wherein the flame reaction material comprises a glass compound, which is formed by mixing a flame reaction agent and a fused material with each other and fusing them together. Said flame reaction agent comprises a metal compound capable of producing the flame reaction, said fused material is capable of being mixed and fused together with said flame reaction agent and vitrified. This flame reaction material is formed by mixing two, even three or more different materials together. When fabricated, the proportions between them must be well controlled, which is very troublesome. Further, there are no many colors of the flame reaction to be produced.
An object of the present invention is to provide a flame reaction material which has a simple component, is easy to prepare and produces more colors of flame reaction.
A further object of the present invention is to provide a flame reaction member formed by using the above flame reaction material.
Therefore, the present invention provides a flame reaction material. The flame reaction material is formed by a single alkali metal or alkaline earth metal compound, and said alkali metal or alkaline earth metal compound has a melting point lower than combustion temperature of combustible gases used in gas combustion appliances and produces a crystal after high-temperature combustion. Further, the flame reaction material is adhered to the surface of a substrate made of a metal conductor in the form of crystal to form a flame reaction member.
Because the flame reaction material is formed by a single alkali metal or alkaline earth metal compound, the proportion of it to other materials is not required to consider when fabricated and thus it is convenient to produce. Further, the flame reaction material may be used to produce a flame reaction member capable of producing a flame with a variety of colors such as yellow, purple, pink, brick red, carmine, kelly and the like.
The present invention will be further explained in combination with embodiments in the following.
The flame reaction material is formed by a single alkali metal or alkaline earth metal compound, and said alkali metal or alkaline earth metal compound has a melting point lower than combustion temperature of combustible gases used in gas combustion appliances and produces a crystal after high-temperature combustion. Generally, the combustion temperature of combustible gases is greater than 1300° C., therefore the melting point of the alkali metal or alkaline earth metal compound lower than 1300° C. may be suitable. The alkali metal compound may be selected from the group consisting of sodium sulfate (Na2SO4), sodium silicate, or other salts of sodium, potassium sulfate (K2SO4), potassium chloride (KCl), or rubidium chloride (RbCl). Sodium sulfate (Na2SO4), sodium silicate, or other salts of sodium may produce a yellow flame reaction. Potassium sulfate (K2SO4) may produce a purple flame reaction. Potassium chloride (KCl) may produce a pink flame reaction. Rubidium chloride (RbCl) may produce a purple flame reaction. The alkaline earth metal compound is selected from the group consisting of calcium chloride (CaCl2), strontium chloride (SrCl2), or barium metaborate (Ba(BO2)2). Calcium chloride (CaCl2) may produce a brick red flame reaction. Strontium chloride (SrCl2) may produce a carmine flame reaction. Barium metaborate (Ba(BO2)2) may produce a kelly flame reaction.
The flame reaction member comprises a substrate 1 and a flame reaction material 2 adhered to the surface of the substrate 1 in the form of crystal. The substrate 1 is a metal conductor (for example, nickel-chromium, stainless steel, etc.), formed as a wire (as showed in
| Number | Date | Country | Kind |
|---|---|---|---|
| 200710019624.8 | Jan 2007 | CN | national |
