| 摘要 |
The invention relates to a device for continuously preheating a mixture of burnable gas, particularly natural gas and oxygen, prior to the catalytic combustion thereof, wherein the combustion heat thereof can be used to heat fed-out natural gas, before or after the expansion thereof and supply to consumers, in order to compensate for the Joule-Thomson effect. The device is designed as a jet pump having a propelling nozzle and a diffuser aligned therewith. The propelling nozzle is the inlet for the mixture into a mixing chamber disposed in the pump housing, a suction line for the natural gas heated by means of catalytic combustion being connected to said chamber. The diffuser is part of an outlet of the mixing chamber of the jet pump. The propelling nozzle and the diffuser are disposed such that they can be moved relative to one another in the pump housing. An adjusting mechanism is provided for adjusting the distance between the propelling nozzle and the diffuser as a function of the temperature of the gas mixture flowing out of the mixing chamber through the outlet. |
