Countermeasures for Solving the Emulsification Problem of VV120 Air Compressor Lubricating Oil

1 Key words: city rail transit, trains, air compressors, lubricating oil emulsification After the Beijing urban rail transit line is opened, the shifting class 43; 3 sets of transitional models are used as advisory services, including, 401 and 402415, etc. 3 Group ginseng; operation, after the batch of new cars arrived in 2005, the transitional models were successively replaced, and the 3 river-type two-moving and two-towing four-group electric trains were the main models of the line.

1 Lubricating oil emulsification and countermeasures In the summer of 2005, with the temperature rising, the weather was humid and hot, and the 120 type air compressor shell 00 lubricating oil in the 3 river type electric train wind source system showed a degree of emulsification. The length of time, the color of the emulsified oil is different, and the degree of emulsification is not heavy. To this end, the oil sample was selected for inspection by the vehicle manufacturer, and measures for replacing the lubricant were taken in time.

1 Connected to the anti-flood door equipment room on page 59. Because part of it is opposite to the tunnel, the ash is larger than seven, and the total core 1 is dusted to clean and lubricate the parts.

The humidity of the flood-proof door equipment room is unstable, so it is necessary to pay attention to the rust-proof maintenance of the door body. In addition, it is necessary to check the insulation resistance of the grounding equipment of the school, which should not be less than 1.0 river, and should not be less than 0.5Ma in the humid environment. Because the gate is equipped with a Ding switch to monitor the state of the door and interlock with the signal system. Relationship, whether the travel switch is normal or not directly affects the driving safety and the real-time monitoring of the door, so it is also necessary to check.

5 Conclusion In summary, the flood prevention door system is inferior to the disaster prevention equipment, and it is idle when it is used, and the probability of use is low. However, whether the flood-proof door is in a normal state directly affects the safety of the subway. In the case of setting the juice, it is necessary to fully consider the one-seatness of the system and set up a protective device that must be used. In addition, due to the short application period of the anti-flooding system, the installation period is short, and the contact with the earth is in contact with the earth, and other professional construction interfaces exist. Therefore, all parties involved in the flood prevention door should closely follow the on-site construction conditions and transport the equipment as early as possible. Construction and acceptance.

1 Mo Tingbin. Discussion on waterproofing of underground structures in subway engineering. Subway and light 2 Sun Zengtian. Design and analysis of the anti-drain door system of Guangzhou Metro Line 2. Urban Rapid Transit, 2004, 17 Supplement 73.

3 Liu Xilong, Chen Furong. Gate and opening and closing equipment 1. Beijing China Water Conservancy and Hydropower 4 Gao Xuexiang, Yang Qixin. A preliminary study on the response measures for the subway emergency. Urban Rail Transit Research, 2, 65, Received Date 2007 On the eve of the National Day of Knock, Knorr-Far East Co., Ltd. gave a reply on the solvency of the Shell Air Compressor Runner Oil. .

Explain the reasons for Shell, lubricant emulsification through the investigation and observation of the field and line operation, the actual working rate of each air compressor is only 15. The line is particularly short, and the vehicle equipment consumes a small amount of air. At a very low working rate, the air compressor is kept at a lower temperature grave, and the air moisture is evaporated in a stream of Ningqi, and the air is mixed and evaporated. This is mixed with the oil to form an emulsified rabbit. The oil was removed by heating to remove the sample of the emulsified oil. The result showed that the oil sample had a moisture content of about 0.4. The oil sample was heated, and after 7 minutes of evaporation, the lubricating oil returned to normal. The lubricating oil shell used in the test mining, 100 should continue to make calls.

It describes the guiding intention of using the air compressor continuous pumping to solve the emulsification of lubricating oil, because the line condition is not easy to change, in order to avoid lubrication and emulsification in the flood season. Affect the performance of the empty card machine, the lubricant should be monitored. The simple treatment method is to periodically press the air compressor continuously for a long period of time, such as 2, so that the sentence ten machine maintains a higher temperature section, and the water in the lubricating oil in the cylinder is evaporated. The specific time and period can be adjusted by monitoring the condition of the lubricant.

Beijing Metro Vehicle Corporation, the payment of the Noel company's reply for the following analysis of 13 stations, the entire operation of about 31. Trains use the damper to implement common brake conditions, train wind pressure setting value 8009001; 1.120 air compressor one way The average pump wind is 6 times, and the actual air replenishment time is 40758. Since the train is an electric built-in sliding door, in addition to the brake wind, the vehicle equipment consumes a small amount of air, so each time the air compressor starts the pumping time is short. To this end, the key to solving the emulsification of air compressor lubricating oil is to improve the actual working rate of the air compressor, to improve the working temperature of the air compressor, and to evaporate and discharge the moisture in the air. Therefore, if the existing frame of the type 5 train can reduce the number of pumping air compressors and extend the running time of the train, the 120 air compressor can be heated, and the method is simple but suitable for laboratory operation. . It is a bad idea to replace the emulsified oil in the air compressor to the train maintenance site.

The air compressor is continuously pumped to solve the problem of lubricating oil emulsification and emulsified oil heating to remove water. The operability of the oil is slightly stronger, but it will bring disadvantages such as waste of energy and energy consumption of the air compressor.

Received Knorr-Bremse's reply to Beijing's Golden Autumn in October. The autumn is high and airy, and there is no external environment that affects the emulsification of the air compressor lubricating oil, so that the emulsification phenomenon of the air compressor lubricating oil of the source line 3 claw 1 bar train 14 is temporarily disappeared. However, the emulsification of the air compressor in the summer season must be solved.

In the end of July 2006, the weather turned hot with the temperature rising, and the air compressor lubricating oil emulsified as scheduled. By the end of July, there were 71 six groups of train air compressor lubricants produced by emulsification, Ding, 403 train air compressor The emulsification of lubricating oil is particularly remarkable. Therefore, the train maintenance personnel stabilized the train wind pressure at 600 1; at 1 o'clock, the continuous pump air did not improve for half an hour, but the air compressor cylinder temperature was 180, 捍锲, ぷ, and the upper temperature limit, thus the test was suspended. Therefore, when the Ding, 403 train for the first time to control the air compressor lubricant emulsification, special Knorkel technical support staff on-site guidance.

On the afternoon of August 8, 2006, the test was conducted on the parking inspection line. Start the train air compressor pumping wind, when the train wind pressure rises to 800, above, open the train total air cylinder drain valve to release the wind, so that the wind of the train total air cylinder is always maintained at 8001 or more. 乍 Pump wind 2 observe emulsified oil color Not significantly changed. Later, the test was repeated in another 403 train. The lubrication 汕 emulsification phenomenon is not solved. It seems that this road is difficult to get through. You must also be familiar with the current status of the Lennon wind source system.

2 Wind source system and air compressor working mode 2.1 Wind source system The wind source system provides compressed air for the train brake throttle solar spring.

The system is equipped with a safety valve to prevent the air compressor type 5 pressure relay from occurring, which causes the system to increase in strength. Another set starts the strong side pumping. To maintain the operation of Lennon. The locomotive wind source system of a PCT train

2.2 Working mode and control circuit of air compressor 2.2.1 Working mode Two on the total air duct bracket of the motor train. The 15-type pressure relay has an action value of 700,8001!800, and the 90013.10 甩Kelly relay controls the duty cycle of the 120-type card machine to stop or start according to the total card force of the train. Lennon wind pressure 0 800 out! When the wind is at the beginning, the river and type pressure relays control the air compressor before and after the train to pump the wind at the same time; when the wind pressure of the train rises to 80013, the air compressor of the tail car stops, and the air compressor of the head train separately supplements the wind to 9001; If the train wind pressure drops to 700 1 , the air compressor at both ends will automatically fill the wind and raise the wind pressure to 90 trains. If this phenomenon occurs, most of the train wind source system occurs, Iv, air compressor static Standard and actual measurement values ​​1.

Measurement content standard pressure value kPa wind time!

Initial wind time 0 car fill air time 800,900 ± 10 standard value 2, measured value is usually 1.5 tail car fill air time 800 2.2.2 control circuit 5, type train air compressor control circuit 2. Air compressor frequency conversion start The device power supply 0750 is captured by 620 through 2,752; the control power supply sinks from 220, 32 provides the air compressor start signal 3 or the manual pump switch 313 or the air compressor from the tail Start 213 poles 01013 to catch. After the head change operation. The control situation is the same.

3 Solving the countermeasures for the emulsification of air compressor lubricating oil 12. The emulsification of the lubricating oil of the Jiji press is now the basis of the influence of the bottom, and the Liao season will reappear. This is true in the dry climate of the North. The damp and humid south of the Yangtze River is more difficult to resist.

Can you pass the modification of 1 to achieve the emulsification of the 120-type air compressor lubricating oil. It is indeed a class that is worth studying. The following suggestions are made for this poem, and it is discussed with the manufacturer of the 120-type air compressor manufacturer, 5 Heche electric train manufacturers and their counterparts.

13800900 allows 3 pairs of long 15-type claw force relay control mode. The change of the 5th pressure relay of the mountain is controlled by the specified setting range. In order to facilitate the air compressor, the number of the seven types of pressure-reducing pressure relays is limited to one. Change the working system of the current air compressor to control the air compressor work of the vehicle separately, including the initial wind of the train. Only when the 405 type force relay of the wooden car fails or the total wind pressure of the train rises, the driver is urged to manually convert the forced The pump air switch makes the tail air compressor air compressor unit automatically input. The air line is unchanged, after removing a 15-type pressure relay. The installation position is blocked by wire.

Install 31 fault input switch in the machine head or tail switch screen. The adjustment of the pressure setting of the type pressure relay should be based on prolonging the working time of the air compressor, and satisfying the operation procedure of the 120 type air compressor to reduce the working rate. It is changed to a single train with a wind point test, and after the type pressure relay control mode, its operation is also very simple. , outside, the initial wind, inter- and wind-filling time should also be modified accordingly. The initial wind time is less than the actual measurement, which is usually less than 6. The single-machine working system 6 is more than some.

It should be corrected according to its actual measured value. Type 03 pressure relay setting value is relaxed. Abolish one pair of air compressor static adjustment standards. The standard value of the supplemental air time is less than 2. And take the extension of the wind, this simple measure. Extending the air supply time increases the working rate of the air compressor, omitting the monitoring of the lubricating oil, and effectively eliminating the conditions for the emulsification of the air compressor lubricating oil.

3 Through the transformation of the train wind source system, the cloth of the current vehicle wind source system can be maintained, and the work of the 12-type medium-pressure machine can be improved.

Beijing Metro Line 1, 6 is 2000, and other old models of air compressors are set to 600,800; this standard lasts for 30 years, only after the double-track opening in 1998, 800900, this new standard is only in 29 groups. Type 04 train is activated. The 004 type air compressor lubricating oil has not been emulsified so far. In addition to the different brands of air compressor oil, it should also be related to many factors such as the configuration of the wind source system of the train wind source system. In view of the 600 800 counter-setting value compared to the 800, 90; 1 standard has its irreplaceable superiority.

In addition to the air compressor of the train wind source system, it is more economical. It also has positive significance for maintaining the pressure of the train wind source system and preventing the leakage of the train air system.

In addition to the single-pressure relay, the dual-pressure relay of the type (2) under the head car should be changed to the single-pressure relay. Do not change the wind pipe; the control line of the pressure regulator should be simply modified. If the 5 type Wangli relay is modified in the lower abdomen of the train to protect it from rain and water, it will be more effective. When the modification of the control circuit is performed normally, the input switch is not closed. The head squat medium press is controlled by the head end switch, and the tail air compressor does not work; when the head air compressor fails or the train urgently needs the chestnut wind, the 3 switch is manually closed, and the tail air compressor is powered. After the head change operation, the control situation is the same as above.

Control circuit transformation

Note: 1 is the original installation of the PCT 03 type pressure relay.

4 Conclusion 3 urticulous train type 120 air compressor lubricating oil emulsified, exposed the shortcomings caused by the low working rate of the air compressor and the limitations of the design ideas. Beijing Metro Vehicle Company, as a user of 3 elbow trains, has no qualifications for retrofitting, and the solution to the problem of air compressor lubrication and emulsification is expected to be produced by the 120 air compressor manufacturer and the 3 elbow train manufacturer.

In addition, the 3-bend train repair process and the air compressor lubricant emulsification need to be replaced. The air compressor oil tank should be cleaned. Drain the residual dirt in the empty tank. Whether the cleaning pump is fixed or moving is a consideration. As a user, the number of requirements is limited, and the soil-made cleaning pump will not be perfect. To this end, it is recommended to produce air compressors to wash the chestnuts. As an accessory product of the 120-type air compressor, it not only improves the quality of after-sales service, but also solves the needs of users.

Ij Nanchefang Locomotive & Rolling Stock Co., Ltd. Technology Center. Beijing urban rail transit line swayed a group of use and maintenance called Qingdao Nanchefang Locomotive Co., Ltd., 2003.

The subway electric vehicle group of Beichunchun Bus Factory made a call for the book, Changchun North Vehicle Changchun Bus Factory, 1999.

Beijing Metro Railway Corporation Land Transport Word 1999 No. 209. Beijing subway railway electric train maintenance rules cam brakes car chopping wave control car 3.

South Cheong Locomotive and Rolling Stock Co., Ltd. Technology Center Research and Development Department. Beijing Rail Transit Line Design Plan. Qingdao South Cars Motorcycle Vehicles Co., Ltd. is limited to the company. 2003.

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