Device and method for rapid preparation of ice particle gas jet

Abstract

The invention discloses an ice particle gas jet quick preparation device and a method. The device comprises a high-pressure gas part, a water storage tank, a liquid nitrogen tank, a jet nozzle and a jet pipe; a gas inlet of the water storage tank, a gas inlet of the liquid nitrogen tank and the jet pipe are all connected with an exhaust port of the high-pressure gas part; an outlet of the water storage tank and an outlet of the liquid nitrogen tank are both connected with the jet pipe; and the jet nozzle is arranged at the tail end of the jet pipe. The method comprises the steps of in sequence: 1) preparation of high-pressure gas; 2) feeding of the high-pressure gas in the jet pipe; 3) mixing of water in the water storage tank and liquid nitrogen in the liquid nitrogen tank in the jet pipe to form ice particles; 4) driving of the ice particles to reach the jet nozzle by the high-pressure gas; 5) spraying out of the ice particles from the jet nozzle; and 6) finishing the work; and discharge of the gas in a pipeline. The method and the device realize simple and fast preparation of the ice particles and integration of ice particle and gas jet, are simple in structure, convenient for operation and not limited by places, and can effectively improve the working efficiency.

Description

technical field [0001] The invention belongs to the technical field of ice particle gas jet, and in particular relates to a rapid preparation device and method of ice particle gas jet. Background technique [0002] Abrasive jet technology first appeared in the 1960s, and is specifically divided into abrasive water jet technology and abrasive gas jet technology. This technology can obtain better cleaning and erosion effects with less power, and is widely used in operations such as cutting, special processing, drilling, rust removal and hydraulic punching. [0003] With the development of abrasive jet technology, the disadvantages of traditional abrasive jet application are becoming more and more prominent. Due to the increase in workload, the consumption of abrasives increases, but traditional abrasives are not easy to recycle and process; secondly, abrasive jets will leave a large amount of fine abrasive particles on the working surface, which is not suitable for occasions ...

AI Technical Summary

Problems solved by technology

[0004] At present, the methods for preparing ice particles mainly include: (1) crushed ice method, such as Poland Galeck and Canadian Vickers, through ice breakers, ice cubes are broken into ice particles with a diameter of 3mm for ice particle abrasive jet test, using this method to prepare ice particles The process is simple and easy to operate, but the continuous preparation of ice particles cannot be realized through the ice crushing method, and the ice particles are easy to melt during the crushing process

(2) Refrigerant method, such as the method proposed by Li Deyu of China University of Mining and Technology to prepare small ice particles by directly contacting liquid nitrogen with pre-cooled atomized water. Using this method to prepare ice particles can meet the requirements of low temperature and particle size of ice particles , but its technical process is complex and costly

However, this method cannot keep the ice particles in the low temperature field continuously, which will reduce the operating efficiency

(2) Using the compressed air method, such as the former Huainan Institute of Mining Zhang Dongsu proposed to use two sets of power systems to realize ice particle preparation and gas jet flow respectively. The gas jet technology can meet the low temperature field requirements in the process of ice particle jet flow, but Its two sets of power systems will cause energy waste

[0006] The above-mentioned ice particle preparation and jet flow technology are pre-prepared ice particles, and ice particles are used as abrasives to add to the jet system to realize ice particle jet flow. The device is complicated and cannot realize the integration of ice particle preparation and jet flow

Images