CN201236780Y - Auxiliary compressor unit for high-speed heavy-duty high-power AC electric locomotive - Google Patents
Auxiliary compressor unit for high-speed heavy-duty high-power AC electric locomotive Download PDFInfo
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- CN201236780Y CN201236780Y CNU2008200385678U CN200820038567U CN201236780Y CN 201236780 Y CN201236780 Y CN 201236780Y CN U2008200385678 U CNU2008200385678 U CN U2008200385678U CN 200820038567 U CN200820038567 U CN 200820038567U CN 201236780 Y CN201236780 Y CN 201236780Y
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- compressor
- pressure relief
- exsiccator
- relief valve
- cooler
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Abstract
The utility model discloses an auxiliary compressor unit for a high-speed, heavy-duty and superpower AC electric locomotive, which comprises a non-oil compressor, a cooler, a dryer, a pressure relief valve and a one-way valve, wherein, one end of the compressor driven by the direct current motor is connected with an air inlet filter, and the other end thereof is connected with the cooler; the other end of the cooler is connected with the pressure relief valve through the dryer; the other end of the pressure relief valve is connected with the one-way valve; a regeneration system to enable drying agent in the dryer to recover activity is arranged on the dryer; the non-oil compressor adopts the non-oil compressor with symmetrical double pistons; and the non-oil compressor, the cooler, the dryer, the pressure relief valve and the one-way valve are integrated and arranged in the identical casing. The utility model has the advantages that the auxiliary compressor unit adopts the integration technology for the non-oil compressor with symmetrical double pistons and the components, the unit weight is light, thereby providing clean, clear and dry compressed air for the systems on the electric locomotive such as the pantograph hoisting system and the main short-circuiting device, and the auxiliary compressor unit can be suitable for the high-speed electric locomotive and also be used on the subway and the inter-city train.
Description
Technical field
The utility model relates to a kind of use for electric locomotive auxiliary compressor, specifically a kind of high speed heavy-load large power alternating-current electric power locomotive engine auxiliary compressor group.
Background technique
At present, the China Transportation Industry development has obtained significant achievements, has supported the fast development of economic society effectively.Along with fast development of national economy, the contradiction of traffic capacity deficiency is more and more outstanding, and the annual spring transportation pressure and the problem of thermal power plant electricity and coal reserve critical shortage still exist.Railway plays a part very important in the modern logistics system as the main artery of the important Infrastructure of country, national economy, the popular traffic tool.The exploitation of high speed railway construction and high speed heavy-load large power alternating-current electric power locomotive engine is the emphasis of railway modernization development.
At a high speed, the technology of heavy-load large power alternating-current electric power locomotive engine is mainly grasped by western countries.All needing an auxiliary compressor group in the electric locomotive is that locomotive rises systems such as bow system and the main plunger voltage supply air that contracts of going ahead of the rest, its effect is to aim at the systems such as bow system and main plunger that rise in the electric locomotive cleaning, clean, dry pressurized air are provided, it is the powerful guarantee of electric locomotive reliable operation, is indispensable constituent element on high speed, the heavy-load large power alternating-current electric power locomotive engine.The auxiliary compressor group of using in the present domestic DC Transmission electric locomotive is to adopt TZK1-50 to have oily piston compressor to add simple oil and water seperator, filter, change oil at 2000 hours needs of use, rotating speed is up to 2300 rev/mins, and noise is big, and gas output is smaller, 50 liters/minute, pressurized air relative moisture is about 90%, and seasonal variations also will be changed oil, and contains oil and impurity in the pressurized air, lifetime of system is had very big influence, and maintenance workload is also bigger.
At a high speed, the heavy duty high-power AC transmission power car is automaticity and all very high electric locomotive of performance, technical requirements to locomotive auxiliary compressor group is very tight, require the pressurized air of unit output not have oil, require specified air displacement more than 70 liters/minute, requirement is at high temperature (+70 ℃), low temperature (40 ℃ and height above sea level 2500M environment and wide cut VDC energy proper functioning under (110V-30%--+25%) condition, require pressurized air relative moisture below 35%, require contaminant size that pressurized air contains below 5u, the weight that requires unit at 65 kilograms with inferior.
Summary of the invention
The purpose of this utility model provides a kind of high speed heavy-load large power alternating-current electric power locomotive engine auxiliary compressor group, this compressor bank adopts double-piston symmetry oilless compressor, and cleaning, clean, dry pressurized air can be provided for the systems such as bow system and main plunger that rise in the electric locomotive.
A kind of high speed heavy-load large power alternating-current electric power locomotive engine auxiliary compressor group, it is characterized in that: it comprises oilless compressor, cooler, exsiccator, pressure relief valve and one-way valve, be connected with air intake filter by direct current generator compressor driven one end, the other end is connected with cooler; The other end of cooler is connected with pressure relief valve by exsiccator; The other end of pressure relief valve is connected with one-way valve; On exsiccator, be provided with and make the exsiccator internal desiccant recover active regenerative system; Described oilless compressor is a double-piston symmetry oilless compressor; Described oilless compressor, cooler, exsiccator, pressure relief valve and one-way valve are integrated to be arranged in the same housing.
For guaranteeing compressed-air actuated cleaning, clean, dry, the utility model is provided with filter between exsiccator and pressure relief valve; For guaranteeing to use safely pressurized air, between exsiccator and pressure relief valve, be provided with safety valve.
In the utility model, described regenerative system comprises regeneration gas cylinder, two-bit triplet solenoid valve and muffler, and the regeneration gas cylinder is connected with exsiccator; One end of two-bit triplet solenoid valve is connected with exsiccator, and the other end is connected with the suction port of pressure relief valve; Muffler is arranged on the two-bit triplet solenoid valve.After compressor bank is used a period of time, can make the exsiccator internal desiccant recover active, the working life of improving exsiccator by regenerative system.
High speed heavy-load large power alternating-current electric power locomotive engine described in the utility model is the main main frame accessory of large power alternating-current electric power locomotive engine with the auxiliary compressor group, is indispensable part.Its effect is to aim at the systems such as bow system and main plunger that rise in the electric locomotive cleaning, clean, dry pressurized air are provided.It is indispensable constituent element on high speed, the heavy-load large power alternating-current electric power locomotive engine.At present on " Harmony " rail motor set electric express locomotive use is being arranged all on DJ4 heavy loading locomotive on Qun Dynasty's line and the Shanghai-Nanjing Railway Line.Improve a little, the utility model also can be used on subway and the inter-city train.It is the powerful guarantee of electric locomotive reliable operation.
The utility model is a seriation high speed heavy-load large power alternating-current electric power locomotive engine auxiliary compressor group, and performance height, low, the good reliability of cost have following characteristics:
1) adopts the special-purpose double-piston symmetry of the railway locomotive oilless compressor of high-performance, low cost, high reliability, guaranteed the no oil of system, low noise, not only environmental protection but also non-maintaining.
2) adopt integrated technology, compressor, air drier, filter, safety valve, electromagnetic valve group are lumped together, improved the reliability of system, use, easy to maintenance.
3) adopt no hot adsorption type unit dryer, siccative adopts the molecular sieve of American UOP company, has both guaranteed compressed-air actuated relative moisture below 6%, and is simple in structure again.
4) oilless compressor has been controlled the weight of compressor under the situation that guarantees specified air displacement, makes compressor energy proper functioning under environment that requires and condition.
Every performance index of the present utility model all satisfy the usage requirement of high speed heavy-load large power alternating-current electric power locomotive engine, are the autonomous innovation of China's high speed heavy-load large power alternating-current electric power locomotive engine with auxiliary compressor group technology.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of high speed heavy-load large power alternating-current electric power locomotive engine described in the utility model auxiliary compressor group is seen Fig. 1, comprises oilless compressor 1, cooler 2, exsiccator 3, pressure relief valve 4 and one-way valve 5.Be connected with air intake filter 10 by direct current generator compressor driven 1 one ends, the other end is connected with cooler 2.Oilless compressor 1 adopts the special-purpose double-piston symmetry of the railway locomotive of high-performance, low cost, high reliability oilless compressor, has guaranteed the no oil of system, low noise, not only environmental protection but also non-maintaining.The other end of cooler 2 is connected with pressure relief valve 4 by exsiccator 3; The other end of pressure relief valve 4 is connected with one-way valve 5.On exsiccator 3, be provided with and make exsiccator 3 internal desiccants recover active regenerative system 6.For guaranteeing compressed-air actuated cleaning, clean, dry, between exsiccator 3 and pressure relief valve 4, be provided with filter 8; For guaranteeing to use safely pressurized air, between exsiccator 3 and pressure relief valve 4, be provided with safety valve 9.Oilless compressor 1, cooler 2, exsiccator 3, pressure relief valve 4, one-way valve 5, regenerative system 6, filter 8 and safety valve 9 are all integrated to be arranged in the same housing 7.
During work, compressor 1 is driven by direct current generator, with air compression to the exhaust pressure that requires.The pressurized air of rising pressure enters exsiccator 3 and carries out drying after cooler 2 coolings.Dried pressurized air is used for locomotive usefulness gas system by one-way valve 5 through filter 8, pressure relief valve 4.
Wherein, the performance of the special-purpose oil-free compressor of railway locomotive is as follows:
Service voltage: 110VDC-30%-+25%; Specified air displacement 〉=0.07m3/min; Maximum exhaust pressure: 1.0Mpa; Rated power: 705W; Weight:＜23kg; Operating ambient temperature :-40-+70 ℃.
Requirement is through the pressurized air behind air drier and the filter: operating ambient temperature :-40-+70 ℃; Outlet air quality: satisfy relative moisture≤35% in any case; Contaminant size＜the 5u that contains.
High speed heavy-load large power alternating-current electric power locomotive engine of the present utility model is with auxiliary compressor group weight＜65kg.
Consider that exsiccator and user have strict demand to the air oil content, so compressor adopts oil-free compressor.The common pattern of small-sized oil-free compressor has two kinds, a kind of is membrane compressor, it adopts the compression of the direct driven diaphragm realization of connecting rod to air, but owing to be subjected to the restriction of elastomer diaphragm processing technology, diaphragm is on the low side working life, particularly under the situation of low temperature, easier embrittlement, this scheme should not be adopted.The utility model adopts completely without oily piston compressor.Be that with the difference of diaphragm type compressor its employing connecting rod driven plunger realizes compression, piston ring adopts the filled polytetrafluoroethylene material with self-lubricating property, reliable operation, long service life.
The most critical component are piston rings on the oily piston compressor, in practical work process, because the speed of related movement of piston ring and cylinder surface is than higher, wear resistance, the high warm nature of piston ring, cryogenic property when comprising firm the startup all there are very high requirement, therefore adopt the filled polytetrafluoroethylene self lubricating material.The piston ring of filled polytetrafluoroethylene self lubricating material in use, can cover piston ring the abrasive material----filled polytetrafluoroethylene of one deck densification at cylinder surface, so the friction factor of piston ring and cylinder surface will reduce gradually, the wear of piston-rings amount also can reduce gradually, even reach and do not have wearing and tearing, the frictional loss merit of compressor also can further descend simultaneously, and efficient improves.Can reach 10000 hours the working life with piston ring compressor of filled polytetrafluoroethylene self lubricating material.Calculated in 25 years according to unit durability, unit can use 1 hour every day, and therefore, unit is not all wanted rering in whole working life, has reached not only environmental protection but also non-maintaining effect.
The effect of guide ring is to bear the lateral force that causes in piston element quality and the movement process, guarantees the linarity of piston motion, prevents the casing wall plucking.The working life of piston ring, guide ring and the material of ring and structural relation are very big.Piston ring, guide ring material are filled polytetrafluoroethylene.On the structural design of ring, also want special consideration, should reduce work engineering split shed leakage rate as far as possible, increase work efficiency, when guaranteeing the work of hot environment state again enough opened gaps are arranged, so piston ring adopts overlap joint degree of lip-rounding formula.
Air valve is a critical component of realizing the compressor automatic air intake and discharge, and each stroke air valve of compressor all will be realized opening-closing process, frequency of okperation height one time.When air valve designs, adopt rational mechanical model, and by the computer simulation characteristics of motion, the calculating optimum working state.
The inlet and outlet valve of compressor is the another one key components and parts of compressor, and material adopts the special-purpose valve block steel of Sweden SANDVIK company, and adopts rational processing, moulding process to guarantee its service property (quality).
For noise and the vibration problem that solves compressor, adopt symmetric double piston balance type structure, this structure can be offset the I rank inertial force and the II rank inertial force of two cylinders fully, make system's operation more steady, the rotating speed that can improve compressor under equal noise and vibration situation reduces the volume of complete machine, under the condition of identical swept volume, can also increase the heat diffusion area of cylinder, improve the reliability of compressor.
Claims (3)
1, a kind of high speed heavy-load large power alternating-current electric power locomotive engine auxiliary compressor group, it is characterized in that: it comprises oilless compressor (1), cooler (2), exsiccator (3), pressure relief valve (4) and one-way valve (5), be connected with air intake filter by direct current generator compressor driven (1) one end, the other end is connected with cooler (2); The other end of cooler (2) is connected with pressure relief valve (4) by exsiccator (3); The other end of pressure relief valve (4) is connected with one-way valve (5); On exsiccator (3), be provided with and make exsiccator (3) recover active regenerative system (6); Described oilless compressor (1) is a double-piston symmetry oilless compressor; Described oilless compressor (1), cooler (2), exsiccator (3), pressure relief valve (4) and one-way valve (5) are integrated to be arranged in the same housing (7).
2, high speed heavy-load large power alternating-current electric power locomotive engine according to claim 1 auxiliary compressor group is characterized in that: be provided with filter (8) and safety valve (9) between exsiccator (3) and pressure relief valve (4).
3, high speed heavy-load large power alternating-current electric power locomotive engine according to claim 1 auxiliary compressor group, it is characterized in that: described regenerative system (6) comprises regeneration gas cylinder (61), two-bit triplet solenoid valve (62) and muffler (63), and regeneration gas cylinder (61) is connected with exsiccator (3); One end of two-bit triplet solenoid valve (62) is connected with exsiccator (3), and the other end is connected with the suction port of pressure relief valve (4); Muffler (63) is arranged on the two-bit triplet solenoid valve (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200385678U CN201236780Y (en) | 2008-08-14 | 2008-08-14 | Auxiliary compressor unit for high-speed heavy-duty high-power AC electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200385678U CN201236780Y (en) | 2008-08-14 | 2008-08-14 | Auxiliary compressor unit for high-speed heavy-duty high-power AC electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236780Y true CN201236780Y (en) | 2009-05-13 |
Family
ID=40649520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200385678U Expired - Lifetime CN201236780Y (en) | 2008-08-14 | 2008-08-14 | Auxiliary compressor unit for high-speed heavy-duty high-power AC electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236780Y (en) |
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2008
- 2008-08-14 CN CNU2008200385678U patent/CN201236780Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090513 Effective date of abandoning: 20080814 |