Quick total air charging method for fireless loopback locomotive

Abstract

The invention relates to the technical field of locomotive air charging, and particularly discloses a quick total air charging method for a fireless loopback locomotive, which is characterized in thatan air charging mechanism charges air to a total air pipe of the fireless loopback locomotive through an air charging tool so as to realize quick air charging of the fireless loopback locomotive. Bymeans of the scheme, rapid air charging can be conducted on the fireless loopback locomotive, so that the air charging time of the fireless loopback locomotive is greatly shortened, a large amount ofinvalid waiting time is saved, the loopback period is shortened, and the use efficiency of the shunting locomotive is improved.

Description

technical field [0001] The invention relates to the technical field of air charging for locomotives, in particular to a method for quickly charging total air for a fireless return locomotive. Background technique [0002] When electric locomotives are newly built or overhauled and leave the factory, according to the "Railway Technical Management Regulations", they are usually sent back as special trains without fire. Since undertaking the repair of Harmony electric locomotives C5 and C6, they frequently encounter locomotives returning to sections or returning to the factory for maintenance without fire. The leakage of train pipes on the way exceeds the standard. The specific manifestation is that when the locomotive switches shunting machines at the turning section or marshalling station, the crew members conduct the train pipe pressure maintenance test according to the train brake test requirements of the "Railway Locomotive Operation Regulations". If the pipe leakage excee...

AI Technical Summary

Problems solved by technology

Open all train tube angle plugs, set the constant pressure of the train tube of the shunting locomotive to 500 or 600kPa, put the automatic brake handle in the running position, and fill the main air cylinder of the unfired return locomotive through the train tube. The air charging path is as follows: figure 1 As shown, DE means no-fire return input / removal of the plug, and it is set to "in" position under no-fire return state, DER is no-fire return pressure regulating valve, the normal pressure range is 250-270kPa, C2 is no-fire return and air filling Condensation, the size is 0.125 inches, approximately equal to 3.2mm, CV is a one-way check valve, to prevent the total air from returning to the train pipe, and fill the air according to the air filling path, because it is limited by the size of the shrinkage cavity, no fire is sent back to the locomotive (Based on 5 vehicles) It normally takes 5 minutes to charge from 0kPa to 230kPa from the total wind, but generally takes as long as 3-4 hours to charge from 230 to 250kPa, even limited by the setting value of the no-fire return pressure regulating valve , it may not be able to charge to 250kPa, even if it just reaches 250kPa, at this time, the crew will perform the train pipe pressure maintenance test according to the train brake test requirements of the "Railway Locomotive Operation Regulations", decompress the train pipe by 50kpa, and the main air cylinder will be controlled according to the direction. The moving cylinder pipeline is filled with air, causing the total air pressure to be lower than 250kPa. At this time, the train pipe of the shunting locomotive is again filled with air to the main air cylinder of the non-fire return special train, resulting in the leakage of the train pipe exceeding the standard requirement of 20kPa for 1 minute.

The existing technology can only meet the normal leakage standard when the setting value of the non-fire return pressure regulating valve is 270kPa, but it still takes a lot of time to fill the air

Images