Drying method of rail transit air source system
A rail transit and drying method technology, which is applied in the drying field of the rail transit air source system, can solve the problems of waste of air source, high air volume ratio, low blowback efficiency, etc., achieve good drying effect, improve drying effect, and save air source Effect
Active Publication Date: 2015-12-23
NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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Problems solved by technology
The air volume ratio of traditional back blowing is relatively high, generally 20-25%, resulting in a waste of air source, and the back blowing efficiency is low
Method used
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[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all Example.
[0011] like figure 1 As shown, it is the drying device used in the embodiment of the present invention, which specifically includes a membrane dryer 1, a regulating valve 2 connected to the gas outlet of the membrane dryer 1, a spiral copper pipe 4 is arranged in the oil-gas separator 3, and the regulating valve 2 The air outlet of the reverse blowing is connected to the air inlet of the helical copper tube 4, and the air outlet of the helical copper tube 4 is connected to the back blowing port of the membrane dryer 1.
[0012] The drying method of the rail transit air source system in this embodiment, the dryer of the air source syste...
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The invention relates to a drying method for an air source system of rail transit. A regulating valve is connected to an air outlet of a film type drier and divides outlet air of the film type drier into two strands, a first strand of the outlet air is taken as dry air to be sent to an air cylinder and a second strand of the outlet air is taken as back blowing air; and a spiral metal pipe is mounted in an oil-gas separator under a vehicle, the back blowing air is led into the spiral metal pipe and heated, then back blowing is performed on hollow fibers in the film type drier, and the air volume of the second strand of the outlet air of the regulating valve accounts for 10-15% of the total outlet air volume. According to the drying method for the air source system of the rail transit, the back blowing air is led into the oil-gas separator, back blowing heating is performed, the water absorbing capacity of the back blowing air is improved, and the usage rate of the back blowing air is increased. Practice shows that the back-heating way drying effect of the drying method is better, the needed back blowing air volume is small to achieve the same drying effect, more drying air can be obtained, and an air source saving effect is realized; and at the same time, the back blowing air exchanges heat with lubricating oil, and an effect of cooling the lubricating oil is realized.
Description
technical field [0001] The invention relates to a drying method for a rail transit wind source system. Background technique [0002] The air source system for rail vehicle braking provides dry and clean compressed air for the braking system. The dryer is one of the key equipment of the air source system. The drying performance of the dryer has a great impact on the energy consumption, effect and exhaust of the air source system. Quality matters a lot. The design of the backflushing method of the dryer directly affects the drying effect of the dryer, and is also related to the use cost of the air compressor. The air volume ratio of traditional back blowing is relatively high, generally 20-25%, resulting in a waste of air source, and the back blowing efficiency is low. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a drying method for the air source...
Claims
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IPC IPC(8): B01D53/26B60T17/00
Inventor 牛瑞汤炎李逵俞永明
Owner NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD