Showing papers on "Gas heater published in 1992"

Assembly for drying wood chips reducing thermal and physical stress - including belt on which chips are dried by transverse flow hot gases in compartments from which gases are bled to incoming adjacent compartment.

Abstract: Fibrous or granular materials are carried and dried on a belt as it passes through a series of compartments within a passage closed other than inlets and outlets for the drying medium. Heated gas traverses over the materials to effect drying. Some of the drying gas in each compartment is bled off into the next compartment supplying an inflow of material for drying treatment. Pref. some of the drying gas which has flowed through a compartment is returned through the same compartment. Each compartment has its own inflow gas heater and a further gas heater within the compartment, maintaining a defined temp. within that compartment. USE/ADVANTAGE - The process dries fibrous or granular materials, esp. wood chips. The process reduces physical and thermal stress on the material under treatment.

Process for refining coke oven gas

Abstract: PURPOSE:To permit complete removal of organic sulfur and NOX by passing coke oven gas preheated to a specific temperature through a bed packed with zeolite. CONSTITUTION:A coke oven gas l is preheated to 150-250 deg.C through a heat- exchanger 4 as required, and then it is treated by introducing it into a catalyst bed 3 holding granular alumina which carries Pd. The gas l thus treated is preheated to 250-350 deg.C by a gas heater 5 and then passed through a bed 2 packed with zeolite (e.g. natural mordenite) to remove organic sulfur and NOX. The resulting gas is discharged by way of the heat-exhanger 4 and gas cooler 6.

Gas-heated domestic hot water system - includes container with latent heat absorption medium which reheats inadequately heated water

Abstract: The domestic hot water system is heated by gas. The gas heater (1) is connected to a storage container (5) containing a latent heat storage medium which absorbs heat from hot water and supplies it to insufficiently heated water. The storage container (5) is connected to a heat exchanger (6) to form a gas combination heater, through which domestic water and heating water flows, and the latter is heated by the combination heater. The heat exchanger (6) is arranged in a by pass (11) between the flow (3) and the return (4), and heating water is let in to the by pass (11) by a control valve (10). USE/ADVANTAGE - Provides an almost immediate supply of hot water at a comfortable temp.

Compressed air thermal regeneration device of turbo supercharged engine

Abstract: PURPOSE:To miniaturize an inter-cooler as well as saving energy by constituting a compressed air thermal regeneration device so that thermal energy retained by compressed air temperature of which is raised by a turbo charger is converted to an electric energy by a sterling engine and is regenerated. CONSTITUTION:When an internal combustion engine 10 starts and rotational speed of the engine 10 is heightened, rotational speed of an exhaust turbine 11b of a turbo charger rises. When pressure of a discharge pipe 13 of a compressor 11a reaches specific pressure P1, a controller 40 actuates solenoids 38 and 39 by outputs of a pressure sensor 18 and a rotation sensor 19 and switches over directional control valves 36 and 37. Consequently, hot compressed air enters a recollection pipe 21, heats working gas in a gas heater 23 and drives a sterling engine 22, and suction air through the gas heater 23 under the state where a generator 33 is driven is cooled down in an inter-cooler 12 and supplied to the internal combustion engine 10 through a suction air pipe 14 and a suction air manifold 16.

Desulfurizing method for combustion gas

Abstract: PURPOSE:To remarkably improve a desulfurization rate by subjecting a temp. of a combustion gas running out from a combustion furnace to be very low near to the saturation temp., and then injecting a slurry of a fly ash in a combustion gas recovered with an electric dust collector into the combustion gas at a low temp. CONSTITUTION:In a flue 35 introducing the combustion gas from the combustion furnace 10 to a desurfurizing flue 20, a gas/gas heater 60 is provided. The combustion gas running out the desulfurizing flue 20 where the slurry 21 is injected and the desulfurization is carried out, is introduced into the gas/gas heater 60, and the gas passed through the gas/gas heater 60 is supplied to the electric dust collector 30. The combustion gas after desulfurization, wherein the slurry 21 is injected by the desurfurizing flue 20 and the temp. is lowered, is introduced into the gas/gas heater 60 and here it is heat-exchanged with the combustion gas running out the combustion furnace 10 and the temp. is lowered near to the saturation temp. The combustion gas running out the combustion furnace 10 is also lowered simultaneously to the temp. near to the saturation temp., and besides, the desulfurization process with the slurry 21 is conducted by entering the desulfurizing flue 20. Hence the desulfurization rate is improved.

Production of rapidly thermally coal-decomposed char

Abstract: PURPOSE:To efficiently produce rapidly thermally decomposed char by indirectly cooling the inside of a char pot to a specific temperature by a liquid to condense tar on the char in a process for rapidly decomposing coal. CONSTITUTION:Coal is charged into a thermal decomposition reactor 1 with a high temperature gas from a circulation gas heater 5. In the thermal decomposition reactor 1 a gas component, a tar component and a char component are produced. The gas and tar components are produced in gas states and the char component is in a solid state. The products are cooled with a heat- recovering device 2 and subsequently fed into a char pot 3 in the hot state of 250 deg.C wherein the gas and tar components are fed in the gas states and the tar is fed into the solid state. The gas and tar components in the gas states are thereby separated from the char in the solid state in the char pot.

Screen type air conditioner

Abstract: PURPOSE:To improve an effect of air conditioning operation by a method wherein a partitioning with a screen and an air conditioning in one partitioned spacing can be carried out concurrently. CONSTITUTION:A screen type air conditioner is comprised of a central vertical plate 1 incorporating at its rear surface a gas heater 4 acting as an air conditioner assembled, a right side vertical plate 2 and a left side vertical plate 3 which can be folded and fixed at both sides of the central vertical plate and acting as heating air diffusers 23 and 24.

Gas combustion baker

Abstract: The utility model provides a gas combustion oven, which is composed of an oven body, a sealing door, and a gas heater which is vertically arranged on the bottom of the oven body, wherein, the inner part of the gas combustion oven is provided with a heat insulating plate with a reinforcing block; a burning chamber and a baking chamber can complete isolation, and simultaneously, the heat insulating plate can also have the functions of uniform heating, resistance to deformation, etc. The gas combustion oven can not only ensure the baking quality, but also can prevent the baked food from polluted, and the nutritional ingredients of the food can be sufficiently kept. The gas combustion oven which is an ideal domestic apparatus has the advantages of simple structure and energy saving.

Method for melting semiconductor-material polycrystal

Abstract: PURPOSE:To melt a raw-material polycrystal in a short time by blowing a heated gas against the polycrystal to be melted to produce a single crystal and then blowing the gas into the molten material. CONSTITUTION:A seed crystal is pulled up from a molten raw-material polycrystal to produce a single crystal. In this case, the polycrystal 1 is charged into a quartz crucible 3 in a graphite susceptor 4 and heated by a crucible heater 5. A gas such as Ar heated by a gas heater 7 is blown against the polycrystal 1 through a quartz tube 6 to accelerate heating. The polycrystal is melted in this way to some extent to form a melt 2, then the heated gas is blown into the melt 2 which is agitated, hence the temp. of the melt 2 is uniformized, and the melt interface is increased. Consequently, the melting of the polycrystal 2 is accelerated, and the time required for melting is reduced.

Simultaneous gas plug shutting-off type automatic fire extinguisher

Abstract: PURPOSE:To ensure a safer and surer operation of an automatic fire extinguisher by forming a circuit for closing a valve to shut off gas supply to a gas heater when a firing pin collides with a sealing part of a carbon gas cylinder. CONSTITUTION:When different potential is applied to a sealing part 2 and firing pin 10 and an automatic fire extinguisher is operated, i.e., the sealing part 2 comes in contact with the firing pin 10 so that a switch of the automatic fire extinguisher body 15 is closed, a gas shutting-off switch 13 is closed to operate a gas shut-off valve 16 and shut off a gas supply path 17. Simultaneously a buzzer 14 is also is sounded to warn surrounding people of the occurrence of fire.

Fan control method of hot water supply gas heater

Abstract: PURPOSE:To inhibit the flames of a burner from blow-dying out and prevent the generation of resonance sound by forcing the change of the rotary speed of a fan to follow the change of the output of a proportional valve. CONSTITUTION:There is installed a block solenoid valve 1 on a gas piping system where a proportional valve 2 is connected with the solenoid valve 1 on the down stream side. The down stream of the solenoid valve 2 is branched in two directions. One is connected with a first stage burner 4 while the other is connected with a second burner 5 by way of a change over solenoid valve 3. There is installed a water flow detector 7 on a water piping system where a heat exchanger 6 is connected with the down stream side. There is mounted a temperature detector 8 on the outlet of the heat exchanger 6. A fan 9 is installed to the air inlet side in order to supply air required for the combustion of the first and second burners. There is mounted a rotation detector 10 on the fan 9.