摘要:
A combustion heater (110) that is provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (142) by a gap with the heating plate; a linking portion (136) that links the lead-in portion and the lead-out portion; a combustion chamber (138) that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion (140) that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.
摘要:
A combustion supporting device is provided to use with a combustion furnace. The combustion supporting device includes a cone body, a tubular member, a cone-shaped member, a base plate and a supporting portion. An upper end of the tubular member is connected to the cone body. The tubular member defines a plurality of gas holes around an upper portion thereof. The cone-shaped member defines an insertion opening thereon. The diameter of the insertion opening corresponds to the outer diameter of the tubular member. A lower portion of the tubular member is passing through the insertion opening and received in the cone-shaped member. The base plate defines a hole corresponding to the tubular member. The base plate is connected to a bottom of the cone-shaped member. The hole communicates with a lower opening of the tubular member. The supporting portion is connected to the base plate.
摘要:
The present invention relates to a process for producing a boron containing glass, comprising melting raw materials including boron compounds in a submerged combustion melter (11), withdrawing flue gases from said melter and recovering heat from said flue gases in appropriate heat recovery equipment prior to release into the environment.
摘要:
The claims define a submerged combustion melter comprising a submerged combustion burner (1) comprising three concentric tubes, all being closed at one end and open at the same opposite end, the internal tube (3) being connected to a source of oxygen containing gas (7), the middle tube (9) surrounding the internal tube (3) being connected to a source of fuel gas (11), and the outer tube (15) being connected to a source (19) of oxygen containing gas. The claims are also directed to a method of introducing a flame and/or combustion products into a melt from a submerged combustion burner and also directed to the use of the burner as a submerged combustion burner in a melter.
摘要:
Provision is made of a radiant heating pipe 10 which is designed to conduct hot gas through a central portion 14 in a preferred direction of flow SV, directed away from the burner 22, into at least one return portion 16, 18 and preferably at least partially back into the central portion 14, such that a recirculation flow through the radiant heating pipe 10 is produced overall. The smallest flow cross section DA for the gas in a zone 24, close to the burner, of the central portion 14 is smaller than the smallest flow cross section DE in a zone 26 remote from the burner. Preferably, the radiant heating pipe 10 according to the invention has a waist at the transition from a branching portion 13, close to the burner, to the central portion 14.
摘要:
A pressure gain combustor comprises a detonation chamber, a pre-combustion chamber, an oxidant swirl generator, an expansion-deflection (E-D) nozzle, and an ignition source. The detonation chamber has an upstream intake end and a downstream discharge end, and is configured to allow a supersonic combustion event to propagate therethrough. The pre-combustion chamber has a downstream end in fluid communication with the detonation chamber intake end, an upstream end in communication with a fuel delivery pathway, and a circumferential perimeter between the upstream and downstream ends with an annular opening in communication with an annular oxidant delivery pathway. The oxidant swirl generator is located in the oxidant delivery pathway and comprises vanes configured to cause oxidant flowing past the vanes to flow tangentially into the pre-combustion chamber thereby creating a high swirl velocity zone around the annular opening and a low swirl velocity zone in a central portion of the pre-combustion chamber. The E-D nozzle is positioned in between the pre-combustion chamber and detonation chamber and provides a diffusive fluid pathway therebetween. The ignition source is in communication with the low swirl velocity zone of the pre-combustion chamber. This configuration is expected to provide a combustor with a relatively low total run-up DDT distance and time, thereby enabling high operating frequencies and corresponding high combustor performance.
摘要:
The invention is directed to an infrared gas heater for a building, comprising:a first straight energy emitter tube; a U-shaped energy emitter tube connect to said first straight, energy emitter tube; a second straight, energy emitter tube having and end connected to said U-shaped energy emitter tube; a reflector system for reflecting heat energy toward the floor of a building; a frame having rollers mounted thereon, said rollers for supporting said first and second straight, energy emitter tubes; a gas heating source connected to the first straight, energy emitter tube at the end opposite the U-shaped energy emitter tube; and whereby the second straight, energy emitter tube at the end opposite the U-shaped energy emitter tube is a gas exhaust.
摘要:
A method and apparatus for burning fuel are described In a conventional boiler the combustion process produces particles which form a layer of deposits on boiler tubes, thus reducing heat transfer efficiency A fuel burner (100) includes a casing, a combustion chamber (106), a tangential gas inlet (108), a fuel delivery system (112) and an exhaust port (114) The casing includes a lower wall (102), an upper wall (104) and a cylindrical side wall (105) formed between the lower and upper walls (102, 104) and encloses the combustion chamber (106) The tangential gas inlet (108) is formed in the cylindrical wall (105) of the combustion chamber (106) The fuel delivery system (112) is configured to deliver fuel into the tangential air inlet (108) The exhaust port (114) is formed in the upper wall (104) of the combustion chamber (106) Gas is delivered into the combustion chamber (106) at a velocity and flow rate and mixes with fuel delivered from the fuel delivery system (112), such that a clean flame burns in the combustion chamber (106) A clean flame is a flame substantially free of unburned particulate matter.
摘要:
A combustion system comprises a combustion chamber and a flue gas duct located downstream of the combustion chamber to receive combustion products from the combustion chamber, the combustion chamber has a base and an enclosing wall connecting the base to the flue gas duct. The combustion chamber is provided with a plurality of combustion devices, the combustion devices being configured to deliver fuel and gas and/or air into the combustion chamber so as to generate a fireball within a combustion zone in the combustion chamber, the combustion devices further being configured such that the generated fireball rotates about an axis extending between the base and the flue duct. A secondary gas and/or air nozzle is provided in the base of the combustion chamber, at a location upstream of the combustion zone, the nozzle being for delivering gas and/or air into the combustion zone in a direction towards the flue duct.
摘要:
A submerged burner for a glass- or rock-melting furnace, including a plurality of in-line injectors, each injector including a cylinder-shaped mixing chamber, with an ejection orifice, a fuel-supply duct and an oxidant-supply duct opening into the mixing chamber at the cylinder jacket in a direction causing a tangential flow of the fuel and of the oxidant relative to the cylinder jacket, and a duct system making it possible for a coolant to flow inside the burner, and, preferably on either side of the alignment of injectors, placed parallel to and all along the latter, solid metal sides rising from the injectors, and protective partitions situated on the top of the solid metal sides.