Annular gas injection type nozzle

Abstract

The annular gas injection and suction type nozzle comprises an inner cylinder, a middle cylinder and an outer cylinder, a cavity channel penetrating through the cylinder wall is formed in the inner cylinder, a top cover is arranged at one end of the inner cylinder and fixedly connected with the inner cylinder, and a plug is arranged at the other end of the inner cylinder; the middle cylinder is sleeved outside the inner cylinder; the middle cylinder is sleeved with the outer cylinder, and a low-pressure air inlet pipe is arranged on the cylinder wall of the outer cylinder; a high-pressure airinlet is formed in the central axis of the top cover and communicated with the inner cylinder, a cavity channel in the inner cylinder is communicated with a high-pressure interlayer, and the low-pressure air inlet pipe is communicated with the low-pressure interlayer. According to the invention, the ratio of high-pressure gas to low-pressure gas is greatly changed, the consumption of the high-pressure gas is reduced, the acting capability of the high-pressure gas is enhanced, the utilization efficiency of effective energy is remarkably improved, the middle cylinder and the outer cylinder of the annular nozzle are designed to be continuously movable and adjustable, and a high-pressure gas flow gap and a mixed gas outlet gap can be randomly adjusted; the optimal working condition of the nozzle can be obtained by adjusting and combining the two gaps, and tedious calculation of the venturi nozzle is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of mixing devices, in particular to an annular gas injection nozzle. Background technique [0002] The ejector nozzle is a common equipment in industry, widely used in many fields such as steam boosting, temperature and pressure reduction, vacuum manufacturing, waste heat utilization, material transportation, etc. At present, the common Venturi structure is widely used, and the technology is very mature. Although the jet-suction nozzle with Venturi structure is simple in structure and has a wide range of applications, its efficiency is not very high, and the high-pressure fluid pressure head and consumption for ejection are relatively large, especially when used as a vacuum pump, the energy efficiency of the nozzle is relatively low, due to Large steam consumption and poor economy. The market needs more efficient jet-suction nozzles, which can obtain more injected gas with less high-p...

AI Technical Summary

Problems solved by technology

Although the jet-suction nozzle with Venturi structure is simple in structure and has a wide range of applications, its efficiency is not very high, and the high-pressure fluid pressure head and consumption for ejection are relatively large, especially when used as a vacuum pump, the energy efficiency of the nozzle is relatively low, due to Large steam consumption and poor economy

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