A totally aerated combustion burner is provided with a combustion plate part through which air-fuel mixture is ejected. The combustion plate part includes: a porous body made of metal fibers; and a distribution plate stacked on a back surface of the porous body, the distribution plate having formed therein a multitude of distribution holes, thereby enabling reduction in cost. The porous body is formed by nonwoven fabric made by laminating metal fibers in the form of felt. A front surface of the nonwoven fabric is covered by a meshed sheet made of metal. Preferably, the meshed sheet is made by knitting a wire member into the form of a mesh, the wire member being formed by bundling together a plurality of metal fibers. The mesh size of the meshed sheet shall preferably be below a flame-out distance of the air-fuel mixture to be ejected out of the combustion plate part.

A gas burner system has a gas burner with a conduit through which an air-gas mixture is conducted; a variable-speed forced-air device that forces air through the conduit; a control valve that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; and an electrode configured to ignite the air-gas mixture so as to produce a flame. The electrode is further configured to measure a flame ionization current associated with the flame. A controller is configured to actively control the variable-speed forced-air device based on the flame ionization current measured by the electrode so as to automatically avoid a flame harmonic mode of the gas burner. Corresponding methods are provided.

A burner has: a combustion plate part for ejecting air-fuel mixture; and a flame rod which lies opposite to a portion of the combustion plate part which has a picture-frame-like burner frame; a metal-fiber knit which covers an opening enclosed by the burner frame; and a distribution plate which has formed therein distribution holes and which sandwiches the metal-fiber knit between the burner frame and the distribution plate through the distribution holes and the metal-fiber knit. The flame rod has: a rod base part which lies opposite to a portion of opening peripheral part of the burner frame which is positioned on the same surface level as the opening; and a rod main body part which lies opposite to a portion of the metal-fiber knit. The distance between the rod base part and the opening peripheral part is made smaller than the distance between the rod main body part and the metal-fiber knit.

The present invention discloses an outdoor gas heater, comprising an outer cover, an outer cover side baffle, a gas injection pipe, a ceramic burner, a body box, a control box connecting support frame, a control box sealing plate, a control box, a wall-mounted bracket and a long open a flame connecting pipe. Four ceramic burners are fixed side by side in the body box, a gas injection pipe is fixed on the lower side of the body box, and a gas injection pipe is sealingly connected to the four ceramic burners; the outer open end of the body box is locked to the outer cover, and the side of the body box opposite to the outer opening thereof is locked to the control box connecting support frame. The control box connecting support frame is a U-shaped structure, and side wall of which is locked on both sides of the control box, and the outer side opening of the control box is locked to the control box sealing plate; the side of the control box opposite to the outer opening is locked to the wall-mounted bracket. The structure is reasonable in design and convenient to use, and its installation and use is very convenient and safety is greatly improved; moreover, it can save energy and maintain the demand for power supply for a long time.

A premix gas burner comprises a metal plate structure, a burner deck and a shaped distributor plate. The metal plate structure is provided for mounting the premix gas burner in a heating appliance. The burner deck comprises a woven wire mesh on the outer surface of which premix gas is combusted after the premix gas has flown through the woven wire mesh. The shaped distributor plate comprises perforations. When the burner is in use the premix gas flows through the perforations of the shaped distributor plate before the premix gas flows through the woven wire mesh. One or more than one slot or notch shaped opening is provided in the shaped distributor plate. The woven wire mesh comprises a circumferential edge comprising at least one tab. The tab or tabs is/are inserted through a slot or notch shaped opening in the shaped distributor plate.

A boiler can have a combustion chamber, a burner, a heat exchanger in fluid communication with the combustion chamber, and a flue for removing a combustion product from the boiler. The burner has a protruding taper shape such as a cone or similar shape. The protruding taper shape of the burner distributes heat to the heat exchanger more evenly than a cylindrical shaped burner thereby reducing heat losses at the combustion chamber wall and increasing the thermal efficiency. The protruding taper shape of the burner also reduces noise associated with the operation of the burner.

An infrared radiator for the heat treatment of a material web includes an incandescent body with a flow-receiving surface to be impinged by a gas-air mixture that is supplied to the infrared radiator and to be heated by combustion of the gas-air mixture. The incandescent body is manufactured as a sheet material that is formed of a multiplicity of threads. The sheet material is manufactured by primary forming.

Provided is a surface combustion burner which solves the passage blocking in a combustion part caused by dust, and enables stable combustion for a long term. The surface combustion burner comprises: a nozzle configured to discharge fuel gas and air for combustion; and a laminate, provided on a tip of the nozzle, in which a plurality of mesh plates is laminated, wherein the laminate includes a portion having an offset arrangement between at least any adjacent ones of the mesh plates.

A premix gas burner comprises a main body, a porous wall, a distribution chamber delimited by the main body and by the porous wall, and an entrance in the main body for introducing a premix of combustible gas and air into the distribution chamber. The main body comprises a cylindrical shape. The porous wall comprises a first porous wall segment and a second porous wall segment. The first porous wall segment and the second porous wall segment both comprise pores for the premix gas to flow from the distribution chamber through the pores, for combustion of the premix gas outside the distribution chamber. The first porous wall segment comprises or consists out of a shaped segment. The shaped segment is directed to the inside of the distribution chamber, such that when the burner is in use premix gas flows from the distribution chamber through the pores of the shaped segment to the inside of the shaped segment. The second porous wall segment comprises an annular porous wall segment. The annular porous wall segment is provided at the base of the shaped segment. The base of the shaped element is provided at the side of the shaped element opposite to the location of the entrance in the main body.

A furnace includes a perforated flame holder formed from an array of tiles. The perforated flame holder is stabilized by a support member extending between at least adjacent tiles. Elongated support members may be positioned to extend through each of the tiles in a respective column of the array of tiles.