44results about How to "Uniform heat load" patented technology

The invention relates to a radio communications device in which at least one additional SAR value-reducing correction element (KE1) is provided in and/or on the housing (GH) in such a manner that the distribution of any electric current (EC1) which might be flowing on the printed circuit board (LP) is effected from one or more local maxima (MA) thereof up to the correction element (KE1). When using the mobile radio device (MP1), a homogenization and/or a shift thus adjusts with regard to the local distribution of the overall resulting electric current (EC1*).

A pulverized coal combustion boiler 100 comprising: a furnace 50; a plurality of burners 6 for supplying and burning pulverized coal fuel in the furnace arranged at positions of a plurality of stages having different heights on a furnace front wall 51 and a furnace rear wall 52 of furnace wall surfaces forming the furnace 50, the furnace rear wall 52 arranged for facing the furnace front wall 51; a plurality of mills 2 arranged for supplying the pulverized coal fuel to the plurality of burners 6 arranged at each of the plurality of stages; and pulverized fuel pipes 5 arranged for distributing and supplying the pulverized coal to the plurality of burners 6 at each of the stages of the furnace front wall 51 and the furnace rear wall 52 from each of the plurality of mills 2.

The invention discloses a supercritical carbon dioxide coal-fired circulating fluidized bed boiler, a power generation system and a power generation method. The supercritical carbon dioxide coal-firedcirculating fluidized bed boiler comprises a hearth, a separator, a tail flue and an externally-arranged type heat exchanger located in a material back section of the separator. A cooling wall and anintermediate-temperature overheater are arranged in the hearth. A high-temperature reheater and a low-temperature overheater are arranged in the externally-arranged type heat exchanger, wherein the low-temperature overheater communicates with the cooling wall and the intermediate-temperature overheater. A low-temperature reheater, a high-temperature overheater, an upper-level economizer, a lower-level economizer and an air preheater are arranged in the tail flue, wherein the high-temperature overheater communicates with the intermediate-temperature overheater, the low-temperature reheater communicates with the high-temperature reheater. The working medium of the boiler is supercritical carbon dioxide. By the adoption of the supercritical carbon dioxide coal-fired circulating fluidized bedboiler, the wall temperature of the cooing wall can be effectively controlled, it is guaranteed that the boiler safely and reliably operates, and the heat efficiency is high; a power generator set tends to be miniature, a higher load response speed is obtained, the deep peak load regulation adaptability is high, the advantages of coal resources are taken into full play, the energy utilization rate is improved, and energy safety is guaranteed.

The invention relates to a fuel gas combustion device with ultra-low NOx emission amount and a fuel gas distribution method, aims at enabling NOx emission amount to be smaller than 20ppm and meeting the low-emission requirement of a high-power combustor and belongs to the technical field of industrial boilers. The fuel gas combustion device with the ultra-low NOx emission amount is characterized in that a central barrel, a swirler, an inner throat and an outer throat are sequentially and coaxially arranged along the central axis of the combustion device outward, a first combustion air channel is arranged between the inner throat and the outer throat, a second combustion air channel is arranged between the inner side of the inner throat and the outer side of the central barrel, and a plurality of T-shaped fuel gas guns and a plurality of oblique-mouth fuel gas guns are arranged, staggered and evenly distributed in an equal-diameter mode. The fuel gas combustion device with the ultra-low NOx emission amount and the fuel gas distribution method have the advantages that fuel gas holes of the oblique-mouth fuel gas guns are outward, flame is formed in the first combustion air channel on the outer side of flame of the T-shaped fuel gas guns, accordingly a boiler furnace space is utilized to the most extent, the amount of produced NOx is little and is smaller than 20ppm, no CO is produced, and combustion is stable and reliable. The maximum power of one machine can reach to more than 70MW.

The invention relates to a supercritical CO2 circular and elliptical tangential boiler furnace body with uniform thermal loads. A furnace hearth comprises a burner cavity. The cross section of an inner cavity of the burner cavity is circular or elliptical. At least one burner assembly is axially arranged in the burner cavity, and the burner assembly comprises a first deflection secondary air nozzle, a primary air nozzle, a second deflection secondary air nozzle and a direct current secondary air nozzle which are arranged in a spaced manner from bottom to top successively. A SOFA air nozzle isarranged on a cavity wall of the burner cavity. An air path system comprises a primary air fan, a secondary air fan, a coal mill and a secondary air distributor. An outlet of the primary air fan and apulverized coal outlet of the coal mill are connected to the primary air nozzle through a primary air pipe. An air outlet of the secondary air fan is connected to the first deflection secondary air nozzle, the second deflection secondary air nozzle, the direct current secondary air nozzle and the SOFA air nozzle separately. The supercritical CO2 circular and elliptical tangential boiler furnace body has the advantages that the thermal loads in the furnace hearth are uniformly distributed axially and radially, so that overtemperature of a heated surface of the boiler furnace is avoided.

The invention discloses a ladle furnace which is conductive and direct-current at a bottom anode side. The ladle furnace of the invention comprises a buggy ladle part and a ladle part and is characterized in that a buggy ladle body is provided with a side bottom anode automatic clamping device which has two symmetrical clamping chunks, wherein, the clamping face of each clamping chunk is connected with a heavy-current water-cooling switch the outside of which is provided with a water cooling pipe; two side bottom anode conductive bumps, which have a compound structure of a metallic part and a non-metallic part respectively, are arranged at the side face of the bottom of a ladle body as bottom anodes and connected with the ladle detachably. By adopting the ladle furnace which is conductive and direct-current at the bottom anode side, the consumption by graphite electrodes is greatly reduced and the noise is relatively low, the arc length short, the submerged arc good, temperature rise fast and carburetion of the molten steel low. In addition, the ladle furnace of the invention is applicable to heat and refine low-carbon steel and ultra-low-carbon steel and less refractories are consumed by the ladle with high heating efficiency so as to save energy.

The invention discloses a combustion system suitable for flexible peak regulation of a four-corner tangential boiler, and an operation method thereof. According to the system, a layer of swirling pulverized coal burner is compactly arranged between two layers of direct-current pulverized coal burners, and air-powder mixtures of the swirling burner are from an independent air-powder conveying system; Coal for combustion of the swirling burner is high-quality coal with high volatile components and heat values, and primary air and secondary air of the swirling burner are both swirl flow; and theswirl strength can be adjusted by 0-100% through a pull rod. When the boiler needs to be subjected to deep peak regulation, the turbulent burner and the adjacent direct-current pulverized coal burnerare put into operation; When the boiler operates at medium and high loads, the swirling burner is stopped, and only secondary air is introduced to participate in boiler combustion; and the situation that the boiler nozzle is coked or burnt out at medium and high loads is avoided. According to the combustion system and the operating method thereof, the deep peak regulation capacity of the coal-fired boiler can be effectively improved, and the consumption capacity of a power grid for new energy power generation is improved.

The invention provides an energy storage heat exchange device and air conditioning equipment. The energy storage heat exchange device comprises: a heat exchanger which comprises a plurality of heat exchanger units, wherein the heat exchanger units are distributed at intervals, and an inserting groove is formed between the adjacent heat exchanger units; and an energy storage piece which is internally provided with an energy storage material, wherein the energy storage piece can be inserted into the inserting groove and can be detached from the inserting groove, and the energy storage piece canmake contact with the heat exchanger units on the two sides of the inserting groove and exchange heat when inserted into the inserting groove. According to the energy storage heat exchange device provided by the scheme, the energy storage piece and the heat exchanger can be conveniently assembled and disassembled, intermittent refrigeration of the air conditioning equipment can be achieved throughcold storage regeneration-refrigeration cycle circulation, and continuous refrigeration can be achieved in a mode of replacing the energy storage piece in time.

The invention belongs to the field of gas combustion, and particularly relates to a low-nitrogen combustion process and device combining direct flow with rotational flow and supplying air at multiplestages in a hearth. 30%-80% of fuel gas is fed from a basic load gas pipe into a rotational flow mixing area as the basic heat load, 20%-70% of combustion air enters a combustion air channel tangentially from a volute type air box as primary combustion air; and a rotational flow air regulator is arranged at an outlet of the combustion air channel, the combustion air rotationally flows out of the channel according to the angle of the air regulator and is rotationally injected into directly entering gas flow, and the combustion air and the directly entering gas flow are mixed in a rotational flow mixing area and ignited and combusted by an igniter. Other fuel gas and secondary combustion air enter a combustion area as corner tangential direct flow through 2-7 stages of pipelines penetratingthrough the side wall of the hearth, and are mixed and combusted. A flue gas recirculation pipeline penetrates through the side wall of the hearth in a staged mode and enters the combustion area, andthe combustion effect is improved. The integrated design of a burner and the hearth can be realized, a high-power combustion device is compact in structure, and the investment cost and the operation cost can be reduced.

The invention discloses an ultra-large-load water-cooling low-NOx gas burner. The ultra-large-load water-cooling low-NOx gas burner comprises a high-pressure cooling water circulating assembly, a swirl piece assembly, an incandescent light assembly, a burner barrel body assembly, a central fuel gas gun assembly and an annular fuel gas gun assembly, the central fuel gas gun assembly and the annularfuel gas gun assembly penetrate through the bottom of the burner barrel body assembly and extend into the burner barrel body assembly, the incandescent light assembly extends into the central fuel gas gun assembly from the bottom of the central fuel gas gun assembly and is fixed in the center of the central fuel gas gun assembly, and the swirl piece assembly is arranged in the burner barrel bodyassembly. The ultra-large-load water-cooling low-NOx type gas burner has the advantages that the temperature of an annular flue gas gun, the central fuel gas gun assembly, the burner barrel body assembly, a heating furnace barrel body, a flame center high-temperature region can be effectively reduced, and generation of the NOx can be inhibited.