Steam ejector

Abstract

The invention discloses a steam ejector, and belongs to the field of ejectors. The steam ejector comprises a receiving chamber, a nozzle and a mixing diffuser pipe; a steam inlet, a liquid inlet and asteam-liquid outlet are formed in the receiving chamber, the axis of the steam inlet is overlapped with the axis of the steam-liquid outlet, and the liquid inlet communicates with a liquid conveyingpipeline; furthermore, the nozzle is detachably connected with the steam inlet, moreover, the output end of the nozzle extends into an inner cavity of the receiving chamber through the steam inlet, and the input end of the nozzle communicates with a steam conveying pipeline; and the mixing diffuser pipe is detachably connected with the steam-liquid outlet, and the input end of the mixing diffuserpipe extends into the inner cavity of the receiving chamber through the steam-liquid outlet. According to the steam ejector, the axis of the steam inlet of the receiving chamber is overlapped with theaxis of the steam-liquid outlet, the output end of the nozzle extends into the inner cavity of the receiving chamber through the steam inlet, the input end of the mixing diffuser pipe extends into the inner cavity of the receiving chamber through the steam-liquid outlet, so that the axis of the nozzle is overlapped with the axis of the mixing diffuser pipe, then a liquid can be sucked efficiently, and the liquid can be lifted by 3-10 meters through the steam ejector.

Description

technical field [0001] The invention relates to the field of ejectors, in particular to a steam ejector. Background technique [0002] The steam ejector is a device powered by high-pressure steam that can pump water from a low water level to a high water level. It has the characteristics of simple structure, convenient maintenance, and energy saving. In petroleum, chemical and other industries, it is often necessary to pump liquid from a low water level to a high water level to complete production operations. Therefore, it is very necessary to provide a steam ejector used in industries such as petroleum and chemical industry. [0003] The prior art provides a steam ejector, as attached figure 1 As shown, the steam ejector includes: a receiving chamber 1 , a nozzle 2 , and a mixing diffuser 3 . Wherein, the receiving chamber 1 is provided with a steam inlet, a liquid inlet, and a vapor-liquid outlet. The axis of the steam inlet coincides with the axis of the vapor-liquid o...

AI Technical Summary

Problems solved by technology

[0005] In the steam ejector provided by the prior art, since it is not easy to make the axis of the mixing diffuser coincide with the axis of the vapor-liquid outlet of the receiving chamber when the auxiliary pipe fitting welded with the mixing diffuser is welded to the receiving chamber, the nozzle The axis of the mixing diffuser is not easy to overlap, which makes the efficiency of pumping liquid low and the consumption of high-pressure steam is large

Moreover, since the mixing diffuser is welded to the receiving chamber through auxiliary pipe fittings, when the nozzle is transitionally matched with the receiving chamber or the flange, it is not easy to replace the mixing diffuser or the nozzle after it is damaged, which requires the replacement of the entire set of steam ejectors, increasing cost of production

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