Gas heater

About: Gas heater is a research topic. Over the lifetime, 1799 publications have been published within this topic receiving 6169 citations.

A gas heater, a gas supply apparatus and method of providing gas

Abstract: The invention provides a gas heater for connection to a heat source and a pressurised gas source, the gas heater comprising: a jacket having an inlet and an outlet and defining a cavity there between; a porous heat exchanger extender within said cavity, and means for providing heat to said heat exchanger along the length thereof. The invention also provides a gas supply apparatus and a method of providing gas.

System and process for comprehensive utilization of oil shale destructive distillation and semicoke gasification

Abstract: The invention discloses a system for comprehensive utilization of oil shale destructive distillation and semicoke gasification, which comprises a destructive distillation furnace, an oil shale bin, an oil storage tank, an oil-gas separator, a gas heater, a gasification fuel bin, a combustible gas tank, a heater, a gasification furnace and a conveyer device According to the invention, by using a process for comprehensive utilization of oil shale destructive distillation and semicoke gasification by using the system, semicoke generated by destructive distillation and powdered oil shale are subjected to gasification reaction to generate combustible gas, a part of combustible gas can be used as a fuel to be introduced into the gas heater to heat a heat carrier gas used in the destructive distillation furnace, high-temperature solid residues generated in the gasification furnace are discharged into a heat exchanger to heat cold water into hot water or vapor According to the invention, the semicoke generated by oil shale destructive distillation is gasified to be recycled, and thus the addition benefits in an oil shale destructive distillation process is increased, heat pollution and chemical pollution of shale residues are reduced, and energy source utilization rate is improved

Flue gas heater by evaporative cooling

Abstract: The invention relates to an evaporation and cooling gas heater, comprising original smoke heat exchanger (1) and purified smoke heat exchanger (2), steam dome (3), by which two heat exchangers are connected. At the side of original smoke heat exchanger (1), the quantity of heat of original smoke is transferred to the cycling medium (11) in heat exchanging pipe (6) at original smoke side. The cycling medium (11) is evaporated by heating and formed steam enters in heat exchanging pipe (7) at purified smoke side. In the heat exchanging pipe (7), the quantity of heat of steam is transferred to the purified smoke and the purified smoke is condensed into liquid. Under the effect of gravity, liquid medium returns into the heat exchanging pipe (6) at the original smoke side through steam dome (3). By the cycling, the purpose that the quantity of heat of original is used to heat the purified smoke is realized. Steam even-pressure room (5) at the purified smoke side is connected with vacuum pump (10) outside so as to control the pressure in evaporating and cooling system and the boiling point of cycling medium. The invention can adopt multiple groups of smoke heater in parallel. By controlling the pressure in each heat exchanger, multi-step temperature difference heat exchanger is realized. The invention is provided with no leakage of smoke, strong applicable ability to load variety of mainframe, and no operation consumption.

Painted vehicle body e.g. bumper, drying device, has inlet gate including heating device by which atmosphere temperature is adjusted to chamber temperature, where atmosphere temperature is obtained in chamber

Abstract: The device has a drying tunnel (30) whose interior is filled with inert gas, where operation temperature is obtained by the drive of the drying tunnel. The inert gas from an inert gas reservoir (68) is fed to a gas exchange chamber (40) by a gas supply device (82). A vehicle body (14) is transported by an inlet gate (32), a drying tunnel (30) and a conveyor system (22). The gate includes a heating device by which atmosphere temperature is adjusted to chamber temperature, where the atmosphere temperature of the chamber is obtained, and is higher than temperature of outer normal atmosphere. The heating device is selected from one of heat exchanger, radiant heater and gas heater.

Anti-backflow apparatus of gas water heater

Abstract: The utility model discloses a downdraft prevention device of a gas heater, which is arranged on a flue of the gas heater and is characterized by comprising an upper pipe and a lower pipe which are communicated with a flue pipe of the gas heater, an external pipe is sleeved between pipe sections of the two pipes, and a downdraft prevention plugging cover which reciprocates up and down is arranged between the upper pipe and the external pipe; an external end cover is arranged among the upper pipe, the lower pipe and the external pipe, and an internal end cover is arranged at the internal end of the upper pipe; the downdraft prevention plugging cover comprises a shaft on the internal end cover and a seal cover, and ventholes are arranged on the upper pipe between the external end cover and the internal end cover. The utility model has the advantages of simple structure, good using effect, and the like.