Study On The Versatility And Adaptability Of Cookers

With the gradual implementation of China’s pollution prevention policies and the gradual completion of the goal of the proportion of natural gas consumption.The sales volume of natural gas in China have increased with years.Natural gas vehicles,as one of the representatives of clean-energy vehicles,have many advantages for example low environmental pollution,stable combustion and so on,so they are favored by consumers.Since the filling of natural gas vehicles is mainly completed in gas stations,the filling network is gradually dense,and the number of underground gas storage wells is also rising because it is the main gas storage device of the gas station.In order to meet the needs of people’s convenient life,gas stations are usually built in places with convenient transportation,but the high-pressure process characteristics of gas storage wells and the stored natural gas have the characteristics of flammability and explosion,so that the leakage of gas storage wells threatens people’s lives and property safety,so real-time leak detection of gas storage wells is particularly important,but the current effective detection method is relatively lacking,so this subject is aimed at solving this problem.First of all,this paper verifies that the leakage of the pressure vessel will cause the change of the temperature field around the leak hole.At the same time,by co MParing the flow rate and the temperature drop,it is worthwhile to find out that the gas storage pressure is the root cause of the temperature change,and the leakage is the important reason Cause;By co MParing the leaking laws of air and soil,it is obtained that different leaking environments only affect the diffusion law of temperature,but do not affect the amount of temperature change.Secondly,this paper simplifies the CFD physical model by using the experimental results that the wall thickness of the pressure vessel does not affect the leakage process,and combined with the technical characteristics of the gas storage well to perform numerical simulations.It is obtained that the underground gas storage well cannot form a jet and diffuse after leakage due to the limitation of soil.Early high-concentration leaked gas developed in a symmetrical fan shape.With the development of time and diffusion distance,the effect of gravity gradually became more and more equal to the diffusion law.Experiments and simulations have confirmed that the larger the size of the leakage hole,the faster the diffusion rate of the underground gas storage well,the wider the i MPact range,and the greater the hazard;and the development of the leakage gas temperature influence zone is slower than the concentration influence zone and the temperature influence The scope of the district is more limited.Based on this feature,a temperature sensor can be arranged in a certain range around the gas storage well,a novel leak detection method that can determine whether the gas storage well is leaking by detecting the temperature change and roughly determine the leak position according to the abnormal position of the measuring point.Based on the leakage characteristics of underground gas storage wells,this topic proposes a detection method based on the Joule-Thomson effect.This method opens up a new pattern of gas storage well leak detection and provides a new idea for future research on gas storage well leak detection At the same time,the research conclusions obtained can also help to improve accident analysis,risk assessment and daily safety management of gas storage wells.