WO2020052021A1 - 电力机车用供风系统及电力机车 - Google Patents
电力机车用供风系统及电力机车 Download PDFInfo
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- WO2020052021A1 WO2020052021A1 PCT/CN2018/113162 CN2018113162W WO2020052021A1 WO 2020052021 A1 WO2020052021 A1 WO 2020052021A1 CN 2018113162 W CN2018113162 W CN 2018113162W WO 2020052021 A1 WO2020052021 A1 WO 2020052021A1
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- WIPO (PCT)
- Prior art keywords
- air supply
- auxiliary
- supply system
- dryer
- main air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
- B60L5/32—Devices for lifting and resetting the collector using fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
Definitions
- the present application relates to the technical field of electric locomotives, and in particular, to an air supply system for electric locomotives and electric locomotives.
- the air supply system in electric locomotives mainly includes a main air supply system and an auxiliary air supply system.
- a main air supply system When there is no compressed air in the main air cylinder of the electric locomotive in the main air supply system, air can be supplied through the auxiliary air supply system to raise the pantograph of the electric locomotive.
- the auxiliary air supply system includes an auxiliary dryer and an auxiliary compressor.
- the auxiliary dryer is used to dry the compressed air provided by the auxiliary compressor, and then sends the dried compressed air to the pantograph to make the pantograph rising.
- the auxiliary dryer in order to improve the next drying effect of the auxiliary dryer, when the auxiliary compressor is stopped, the auxiliary dryer itself needs to be dried, that is, the water absorbed by the desiccant in the auxiliary dryer is discharged.
- auxiliary air cylinder in order to dry the auxiliary dryer, an auxiliary air cylinder is additionally added, and air is supplied to the auxiliary dryer through the auxiliary air cylinder to dry the auxiliary dryer.
- this design will not only increase the cost of the air supply system, but also increase the overall volume of the air supply system. Since the space of the electric locomotive is very compact, it is impossible to provide a suitable installation space for the air supply system. Installation of wind systems is becoming more difficult.
- the purpose of this application is to provide an air supply system for electric locomotive and electric locomotive, which can reduce the cost of the air supply system while satisfying the drying of the auxiliary dryer, and can also reduce the overall volume of the air supply system. It reduces the installation difficulty of the air supply system.
- the first aspect of the present application provides an air supply system for electric locomotive, which includes:
- An auxiliary air supply system which includes an auxiliary compressor, a first auxiliary air supply pipe, an auxiliary dryer, and a second auxiliary air supply pipe, which are sequentially communicated, and a sewage pipe communicating with the auxiliary dryer.
- the second auxiliary air supply pipeline can also communicate with the pantograph of the electric locomotive, and the compressed air in the auxiliary compressor can be dried to the pantograph after being dried by the auxiliary dryer.
- a main air supply system which includes a main air cylinder, a first main air supply pipe, and a second main air supply pipe, and the main air cylinder can communicate with all through the first main air supply pipe.
- the pantograph is connected, and the main air cylinder is in communication with the auxiliary dryer through the second main air supply pipe.
- the main air cylinder is used to store dry compressed air, and the main air cylinder is dried. The compressed air can pass to the pantograph and the auxiliary dryer.
- the method further includes:
- a first connection pipeline one end of the first connection pipeline is in communication with the auxiliary dryer, and the other end thereof is in communication with the first auxiliary air supply pipeline and the sewage discharge pipeline through a three-way joint, respectively.
- the method further includes:
- a second connection pipe one end of which is in communication with the auxiliary dryer, and the other end of which is connected to the second auxiliary air supply pipe and the second main air supply pipe respectively through a three-way joint Road connected.
- the method further includes:
- a third connection pipeline, and one end of the third connection pipeline communicates with the second auxiliary air supply pipeline and the second main air supply pipeline through a three-way joint, respectively;
- a fourth connection pipeline one end of the fourth connection pipeline is in communication with the master air cylinder, and the other end of the fourth connection pipeline is connected to the other end of the third connection pipeline through a three-way joint and The first main air supply pipeline is in communication.
- a throttling and shrinking plug is provided in the second main air supply pipeline, the throttling and shrinking plug has a throttling hole, and the dry compressed air in the main air cylinder It is possible to access the auxiliary dryer through the orifice.
- the orifice has a first conical buffer section, a straight section, and a second conical buffer section which are sequentially connected and coaxially arranged,
- the port with the smallest aperture on the first tapered buffer section is opposite to the port with the smallest aperture on the second tapered buffer section
- the diameter of the straight line segment is 1 mm.
- the auxiliary air supply system further includes:
- a first check valve which is disposed on the first auxiliary air supply line
- a second check valve which is disposed on the second auxiliary air supply line
- the compressed air in the auxiliary compressor passes through the first check valve to the auxiliary dryer, and after being dried by the auxiliary dryer, passes through the second check valve to the power receiving unit. bow.
- the first auxiliary air supply pipe, the second auxiliary air supply pipe, the first main air supply pipe, and the second main air supply pipe At least one of the roads includes a hose.
- a second aspect of the present application provides an electric locomotive including the air supply system for an electric locomotive according to any one of the above.
- the main air supply system in the main air supply system communicating with the pantograph through the first main air supply line in addition to the main air supply system in the main air supply system communicating with the pantograph through the first main air supply line, it can also be connected to the second main air supply line through
- the auxiliary dryer in the auxiliary air supply system is connected, that is, the main air cylinder can not only provide dry compressed air to the pantograph to drive the pantograph to rise, but also provide dry compressed air to the auxiliary dryer To dry the auxiliary dryer.
- the auxiliary dryer is dried by using the compressed air dried in the main air cylinder.
- a method of drying the auxiliary dryer by adding an additional auxiliary air cylinder can reduce the stroke in the air supply system.
- the number of components such as cylinders can reduce the cost of the air supply system.
- the overall volume of the air supply system can be reduced, which can reduce the installation difficulty of the air supply system.
- FIG. 1 is a schematic diagram of an air supply system according to an embodiment of the present application.
- Auxiliary compressor 2. First auxiliary air supply line; 3. Second auxiliary air supply line; 4. Sewage line; 5. Master air cylinder; 6. First main air supply line; 7. The second main air supply line; 8, the first connection line; 9, the second connection line; 10, the third connection line; 11, the fourth connection line; 12, throttling and blocking; 13, the first One non-return valve; 14, second non-return valve; 15, hose; 16, safety valve; 17, pressure tester; 18, first solenoid valve; 19, second solenoid valve; 20, auxiliary dryer.
- the air supply system in electric locomotives mainly includes a main air supply system and an auxiliary air supply system.
- the auxiliary air supply system can be used to supply air to raise the pantograph of the electric locomotive.
- the auxiliary air supply system includes an auxiliary dryer and an auxiliary compressor.
- the auxiliary dryer is used to dry the compressed air provided by the auxiliary compressor, and then sends the dried compressed air to the pantograph to make the pantograph rising.
- the auxiliary dryer in order to improve the next drying effect of the auxiliary dryer, when the auxiliary compressor is stopped, the auxiliary dryer itself needs to be dried, that is, the water absorbed by the desiccant in the auxiliary dryer is discharged.
- an auxiliary air cylinder is additionally added, and air is supplied to the auxiliary dryer through the auxiliary air cylinder to dry the auxiliary dryer.
- this design will not only increase the cost of the air supply system, but also increase the overall volume of the air supply system. Since the space of the electric locomotive is very compact, it cannot provide a suitable installation space for the air supply system, so Installation of wind systems is becoming more difficult.
- an embodiment of the present application provides an air supply system for electric locomotives.
- the air supply system may include an auxiliary air supply system and a main air supply system.
- the air supply system can provide compressed air to the pantograph of the electric locomotive to raise the pantograph and contact the external contact network, so that the electric locomotive can obtain electrical energy.
- the auxiliary air supply system in this embodiment can be powered by a battery, and the power required by the main air supply system can come from the external contact network, that is, the power can be obtained by contacting the external power supply system through the pantograph.
- compressed air can be provided to the pantograph through the auxiliary air supply system to make the pantograph rise and contact the outside contact network, so that the electric locomotive works normally.
- the auxiliary air supply system in this embodiment may include an auxiliary compressor 1, a first auxiliary air supply pipe 2, an auxiliary dryer 20, a second auxiliary air supply pipe 3, and a sewage pipe. Road 4.
- the auxiliary compressor 1, the first auxiliary air supply line 2, the auxiliary dryer 20, and the second auxiliary air supply line 3 communicate in sequence, and the second auxiliary air supply line 3 can also communicate with the pantograph of the electric locomotive.
- the compressed air in the compressor can pass through the auxiliary dryer 20 to the pantograph after drying, that is, the compressed air in the auxiliary compressor 1 can pass through the first auxiliary air supply pipe 2 to the auxiliary dryer 20.
- the auxiliary dryer 20 can dry the compressed air, and the dried compressed air can pass through the second auxiliary air supply pipe 3 to the pantograph to drive the pantograph to rise.
- the drain pipe 4 is in communication with the auxiliary dryer 20, and the water generated by the auxiliary dryer 20 after being dried by itself can be discharged through the drain pipe 4.
- the main air supply system may include a main air cylinder 5, a first main air supply pipe 6, and a second main air supply pipe 7.
- the main air cylinder 5 can communicate with the pantograph through the first main air supply pipe 6, and
- the main air cylinder 5 communicates with the auxiliary dryer 20 through the second main air supply pipe 7.
- the main air cylinder 5 is used for storing dry compressed air, and the dry compressed air in the main air cylinder 5 can be passed to the pantograph and the auxiliary dryer 20.
- the dry compressed air in the main air cylinder 5 can communicate with the pantograph through the first main air supply pipe 6 to drive the pantograph to rise; and the compressed air in the main air cylinder 5 can also pass
- the second main air supply line 7 communicates with the auxiliary dryer 20 to perform a drying process on the auxiliary dryer 20.
- the auxiliary dryer 20 is dried by using the compressed air dried in the main air cylinder 5, compared with the related art in which the auxiliary dryer 20 is dried by adding an additional auxiliary air cylinder, Reducing the number of air cylinders and other components in the air supply system can reduce the cost of the air supply system. In addition, the overall volume of the air supply system can be reduced, which can reduce the installation difficulty of the air supply system.
- the working process of the air supply system in this embodiment may be:
- the battery is used to supply power to the auxiliary air supply system, so that the compressed air in the auxiliary compressor 1 is dried by the auxiliary dryer 20 and leads to the pantograph to drive the pantograph to rise;
- the auxiliary compressor 1 When the pantograph is raised and comes into contact with the external contact network, the auxiliary compressor 1 is stopped and the main air supply system is started at this time. At this time, the dry compressed air in the main air cylinder 5 can lead to the pantograph so that The pantograph is kept in a raised state and is in stable contact with the external contact network to ensure the normal operation of the electric locomotive;
- the main air cylinder 5 can be used to provide the dry compressed air to the auxiliary dryer 20 to blow out the moisture in the auxiliary dryer 20 and then achieve the drying of the auxiliary dryer 20 ; Among them, the moisture in the auxiliary dryer 20 can be discharged through the sewage pipe 4.
- At least one of the aforementioned first auxiliary air supply line 2, the second auxiliary air supply line 3, the first main air supply line 6 and the second main air supply line 7 includes a hose
- the first auxiliary air supply pipe 2 includes a hose 15. Because the hose has good flexibility and repeated bending, the shape of the hose can be adjusted according to the installation space of the electric locomotive, which improves the installation flexibility of the air supply system and reduces the installation difficulty of the air supply system.
- the auxiliary air supply system may further include a first check valve 13 and a second check valve 14.
- the first check valve 13 and the second check valve 14 are check valves, and the first check valve 13 is provided on the first auxiliary air supply line 2; and the second check valve 14 is provided on the second auxiliary Air supply pipe 3.
- the first check valve 13 allows the compressed air in the auxiliary compressor 1 to go to the auxiliary dryer 20, and the second check valve 14 allows the compressed air dried by the auxiliary dryer 20 to go to the pantograph. That is, the compressed air in the auxiliary compressor 1 can be passed to the auxiliary dryer 20 through the first check valve 13, and dried to the pantograph through the second check valve 14 after being dried by the auxiliary dryer 20.
- the provision of the first check valve 13 can prevent the compressed air leading to the auxiliary dryer 20 from flowing back to the auxiliary compressor 1, resulting in damage to the auxiliary compressor 1, thereby extending the use of the auxiliary compressor 1. life.
- the provision of the second check valve 14 can prevent the compressed air to the pantograph from flowing back to the auxiliary dryer 20 through the second auxiliary air supply pipe 3, resulting in damage to the auxiliary dryer 20, thereby extending the auxiliary dryer. 20 useful life.
- the auxiliary air supply system may further include a safety valve 16 and a pressure tester 17, both of which are located on the auxiliary compressor 1 and the first stop on the first auxiliary air supply line 2. A part of the return valve 13 is communicated.
- the safety valve 16 is used to ensure the use safety of the auxiliary compressor 1
- the pressure tester 17 is used to test the pressure of the compressed air output from the auxiliary compressor 1, so as to determine the pressure in the auxiliary compressor 1 at this time.
- the pressure conditions of the auxiliary compressor 1 can be adjusted according to different pressure conditions to further ensure the use safety of the auxiliary compressor 1.
- the auxiliary air supply system may further include a first solenoid valve 18 and a second solenoid valve 19 which are sequentially disposed on the sewage pipe 4.
- the first solenoid valve 18 and the second solenoid valve 19 may be the same type of solenoid valve. It can be different types of solenoid valves, depending on the situation.
- the first solenoid valve 18 and the second solenoid valve 19 may be controlled to be closed to avoid the leakage of the auxiliary dryer 20 when drying the compressed air (that is, :
- the partial compressed air supply is discharged through the sewage pipe 4), which ensures the working stability of the auxiliary air supply system; when the auxiliary air supply system is in a non-working state, it can be conveyed to the auxiliary dryer 20 through the main air cylinder 5 for drying.
- the air supply system may further include a first connection pipe 8, one end of the first connection pipe 8 is in communication with the auxiliary dryer 20, and the other end thereof is respectively connected to the first auxiliary air supply pipe through a three-way joint. 2 and the sewage pipe 4 communicate.
- the first auxiliary air supply pipe 2 and the sewage discharge pipe 4 can communicate with the same port on the auxiliary dryer 20 through the first connection pipe 8, so that the design is performed without affecting the normal operation of the auxiliary air supply system
- the number of ports on the auxiliary dryer 20 can be reduced, so that the structural strength and sealing performance of the auxiliary dryer 20 can be improved.
- the cost of the pipe in the air supply system can be reduced, and the air supply system can also be reduced.
- the space occupied by the middle pipes increases the installation flexibility of the air supply system and reduces the installation difficulty of the air supply system.
- the air supply system may further include a second connection pipe 9.
- One end of the second connection pipe 9 is in communication with the auxiliary dryer 20, and the other end thereof is connected to the second auxiliary air supply pipe 3 and the first through a three-way joint, respectively.
- the two main air supply pipes 7 communicate with each other. That is, the second auxiliary air supply pipe 3 and the second main air supply pipe 7 can communicate with the same port on the auxiliary dryer 20 through the second connection pipe 9, so that the design can reduce the ports on the auxiliary dryer 20
- the number of the components can increase the structural strength and sealing performance of the auxiliary dryer 20.
- the cost of the pipe in the air supply system can be reduced, and the The space occupied by the pipeline in the air supply system is reduced, the installation flexibility of the air supply system is improved, and the installation difficulty of the air supply system is reduced.
- the air supply system may further include a third connection pipe 10 and a fourth connection pipe 11, and one end of the third connection pipe 10 is connected to the second auxiliary air supply pipe 3 and the second main supply through a three-way joint, respectively.
- the air pipe 7 is in communication; one end of the fourth connection pipe 11 is in communication with the main air cylinder 5, and the other end of the fourth connection pipe 11 is connected to the other end of the third connection pipe 10 and the first main pipe through a three-way joint, respectively.
- the air supply pipe 6 is communicated.
- This design can reduce the number of ports on the total air cylinder 5, thereby improving the structural strength and tightness of the total air cylinder 5.
- the cost of the piping in the air supply system can be reduced, and the space occupied by the piping in the air supply system can be reduced, which improves the installation flexibility of the air supply system and reduces the difficulty of installing the air supply system.
- At least one of the aforementioned first connection pipe 8, second connection pipe 9, third connection pipe 10, and fourth connection pipe 11 may include a hose to further improve the supply.
- the installation flexibility of the wind system can reduce the installation difficulty of the air supply system without affecting the installation of other components in the electric locomotive.
- the second main air supply pipe 7 may be provided with a throttling and shrinking plug 12, and the throttling and shrinking plug 12 has a throttling hole.
- the auxiliary dryer 20 To the auxiliary dryer 20.
- a throttling and shrinking plug 12 is provided in the second main air supply pipe 7 to reduce the flow rate of the compressed air dried in the main air cylinder 5 to the auxiliary dryer 20, thereby ensuring the auxiliary dryer 20 At the same time of drying, the use of dry compressed air in the total air cylinder 5 can be saved and the cost can be reduced.
- the throttling and shrinking block 12 since the throttling and shrinking block 12 is disposed in the second main air supply pipe 7, the throttling and shrinking block 12 does not occupy additional space.
- the throttling and shrinking plug 12 can be interference-fitted with the second main air supply pipe 7 to ensure that the throttling and shrinking plug 12 is stably installed in the second main air supply pipe 7 while avoiding the total wind
- the condition that the dry compressed air in the cylinder 5 passes between the throttling and shrinking block 12 and the second main air supply pipe 7 improves the throttling effect.
- the orifice of the throttling and shrinking plug 12 has a first conical buffer section, a straight section, and a second conical buffer section that are sequentially connected and coaxially arranged.
- the first conical buffer section has the smallest aperture.
- the port is opposite to the port having the smallest aperture on the second tapered buffer section, and the diameter of the straight section, the smallest diameter of the first tapered buffer section, and the smallest diameter of the second tapered buffer section are equal.
- a certain buffer effect can be provided on the airflow flowing through the throttle valve, so as to substantially eliminate the fluctuation of the airflow.
- the diameter of the straight line segment is 1 mm. While ensuring that the auxiliary dryer 20 is dried, the use of dry compressed air in the total air cylinder 5 can be saved and the cost can be reduced. But not limited to this, it depends on the specific situation.
- an embodiment of the present application further provides an electric locomotive, which includes a pantograph and may further include an air supply system for an electric locomotive according to any one of the above.
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Abstract
一种电力机车用供风系统，包括辅助供风系统及主供风系统。辅助供风系统包括依次连通的辅助压缩机（1）、第一辅助供风管路（2）、辅助干燥器（20）、第二辅助供风管路（3），以及与辅助干燥器（20）连通的排污管路（4）。第二辅助供风管路（3）还能够与电力机车的受电弓连通，辅助压缩机（1）内的压缩空气能够经辅助干燥器（20）干燥后通往受电弓。主供风系统包括总风缸（5）、第一主供风管路（6）及第二主供风管路（7），总风缸（5）通过第一主供风管路（6）能够与受电弓连通，且总风缸（5）通过第二主供风管路（7）与辅助干燥器（20）连通，总风缸（5）用于存储干燥的压缩空气，总风缸（5）内干燥的压缩空气能够通往受电弓和辅助干燥器（20）。还包括一种电力机车。该供风系统和电力机车，可降低供风系统的成本及安装难度。
Description
本公开要求申请日为2018年9月13日、申请号为CN201811069647.4、发明创造名称为《电力机车用供风系统及电力机车》的发明专利申请的优先权。
本申请涉及电力机车技术领域，具体而言，涉及一种电力机车用供风系统及电力机车。
目前，电力机车中的供风系统主要包括主供风系统和辅助供风系统。当电力机车在主供风系统的总风缸没有压缩空气时，可通过辅助供风系统供风，以使电力机车的受电弓升起。
一般来说，辅助供风系统包括辅助干燥器和辅助压缩机，辅助干燥器用于对辅助压缩机提供的压缩空气进行干燥，然后将干燥后的压缩空气送至受电弓，以使受电弓升起。其中，为了提高辅助干燥器下次干燥效果，在辅助压缩机停止工作时，辅助干燥器本身也需要进行干燥处理，即：将辅助干燥器中干燥剂吸收的水分排出。
相关技术中，为了对辅助干燥器进行干燥，又额外增加了个辅助风缸，通过辅助风缸向辅助干燥器供风，以对辅助干燥器进行干燥。但这样设计不仅会导致供风系统的成本增加，而且还会使供风系统整体的体积增大，由于电力机车的空间非常紧凑，无法为此供风系统提供合适的安装空间，因此，导致供风系统的安装难度增大。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本申请的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本申请的目的在于提供一种电力机车用供风系统及电力机车，在满足对辅助干燥器进行干燥的同时，还可降低供风系统的成本，而且还可减小供风系统的整体体积，降低了供风系统的安装难度。
本申请第一方面提供了一种电力机车用供风系统，其包括：
辅助供风系统，所述辅助供风系统包括依次连通的辅助压缩机、第一辅助供风管路、辅助干燥器及第二辅助供风管路，以及与所述辅助干燥器连通的排污管路，且所述第二辅助供风管路还能够与所述电力机车的受电弓连通，所述辅助压缩机内的压缩空气能够经所述辅助干燥器干燥后通往所述受电弓；
主供风系统，所述主供风系统包括总风缸、第一主供风管路及第二主供风管路，所述总风缸通过所述第一主供风管路能够与所述受电弓连通，且所述总风缸通过所述第二主供风管路与所述辅助干燥器连通，所述总风缸用于存储干燥的压缩空气，所述总风缸内干燥 的压缩空气能够通往所述受电弓和所述辅助干燥器。
在本申请的一种示例性实施例中，还包括：
第一连接管路，所述第一连接管路的一端与所述辅助干燥器连通，其另一端通过三向接头分别与所述第一辅助供风管路及所述排污管路连通。
在本申请的一种示例性实施例中，还包括：
第二连接管路，所述第二连接管路的一端与所述辅助干燥器连通，其另一端通过三向接头分别与所述第二辅助供风管路及所述第二主供风管路连通。
在本申请的一种示例性实施例中，还包括：
第三连接管路，所述第三连接管路的一端通过三向接头分别与所述第二辅助供风管路及所述第二主供风管路连通；
第四连接管路，所述第四连接管路的一端与所述总风缸连通，所述第四连接管路的另一端通过三向接头分别与所述第三连接管路的另一端及所述第一主供风管路连通。
在本申请的一种示例性实施例中，所述第二主供风管路内设置有节流缩堵，所述节流缩堵具有节流孔，所述总风缸内干燥的压缩空气能够通过所述节流孔通往所述辅助干燥器。
在本申请的一种示例性实施例中，所述节流孔具有依次连通且同轴设置的第一锥形缓冲段、直线段及第二锥形缓冲段，
所述第一锥形缓冲段上具有最小孔径的端口与所述第二锥形缓冲段上具有最小孔径的端口相对设置，
且所述直线段的孔径、所述第一锥形缓冲段的最小孔径及所述第二锥形缓冲段的最小孔径相等。
在本申请的一种示例性实施例中，所述直线段的孔径为1mm。
在本申请的一种示例性实施例中，所述辅助供风系统还包括：
第一止回阀，所述第一止回阀设置在所述第一辅助供风管路上；
第二止回阀，所述第二止回阀设置在所述第二辅助供风管路上；
其中，所述辅助压缩机内的压缩空气通过所述第一止回阀通往所述辅助干燥器，并经所述辅助干燥器干燥后通过所述第二止回阀通往所述受电弓。
在本申请的一种示例性实施例中，所述第一辅助供风管路、所述第二辅助供风管路、所述第一主供风管路及所述第二主供风管路中的至少一者包括软管。
本申请的第二方面提供了一种电力机车，其包括上述任一项所述的电力机车用供风系统。
本申请提供的技术方案可以达到以下有益效果：
本申请所提供的电力机车用供风系统，其主供风系统中的总风缸除了通过第一主供风管路与受电弓连通之外，还可通过第二主供风管路与辅助供风系统中的辅助干燥器连通，也就是说，总风缸不仅可以向受电弓提供干燥的压缩空气，以驱动受电弓升起；而且还可 向辅助干燥器提供干燥的压缩空气，以对辅助干燥器进行干燥处理。本申请中通过利用总风缸中干燥的压缩空气对辅助干燥器进行干燥处理，相比于相关技术中通过增设额外的辅助风缸对辅助干燥器进行干燥处理的方案，可减少供风系统中风缸等部件的数量，从而可降低供风系统的成本，另外，还可减小供风系统的整体体积，从而可降低供风系统的安装难度。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施方式所述的供风系统的示意图。
附图标记说明：
图1中：
1、辅助压缩机；2、第一辅助供风管路；3、第二辅助供风管路；4、排污管路；5、总风缸；6、第一主供风管路；7、第二主供风管路；8、第一连接管路；9、第二连接管路；10、第三连接管路；11、第四连接管路；12、节流缩堵；13、第一止回阀；14、第二止回阀；15、软管；16、安全阀；17、压力测试器；18、第一电磁阀；19、第二电磁阀；20、辅助干燥器。
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本申请将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成 部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”、“第三”及“第四”等仅作为标记使用，不是对其对象的数量限制。
目前，电力机车中的供风系统主要包括主供风系统和辅助供风系统。当主供风系统的总风缸没有压缩空气或主供风系统没有电时，可通过辅助供风系统供风，以使电力机车的受电弓升起。
一般来说，辅助供风系统包括辅助干燥器和辅助压缩机，辅助干燥器用于对辅助压缩机提供的压缩空气进行干燥，然后将干燥后的压缩空气送至受电弓，以使受电弓升起。其中，为了提高辅助干燥器下次干燥效果，在辅助压缩机停止工作时，辅助干燥器本身也需要进行干燥处理，即：将辅助干燥器中干燥剂吸收的水分排出。
相关技术中，为了对辅助干燥器进行干燥，又额外增加了个辅助风缸，通过辅助风缸向辅助干燥器供风，以对辅助干燥器进行干燥。但这样设计不仅会导致供风系统的成本增加，而且还会使供风系统整体的体积增大，由于电力机车的空间非常紧凑，无法为此供风系统提供合适的安装空间，因此，导致供风系统的安装难度增大。
为了解决上述技术问题，如图1所示，本申请实施方式提供了一种电力机车用供风系统，此供风系统可包括辅助供风系统和主供风系统，此辅助供风系统和主供风系统均可向电力机车的受电弓提供压缩空气，以使受电弓升起并与外界接触网接触，从而使电力机车获取电能。
其中，本实施方式中的辅助供风系统可通过蓄电池进行供电，而主供风系统所需要的电能可来自外界接触网，即：通过受电弓与外部供电系统接触，从而可获得电能。在主供风系统没有电能时，可通过辅助供风系统向受电弓提供压缩空气，以使受电弓升起并与外界接触网接触，使得电力机车正常工作。
具体地，如图1所示，本实施方式中的辅助供风系统可包括辅助压缩机1、第一辅助供风管路2、辅助干燥器20、第二辅助供风管路3及排污管路4。此辅助压缩机1、第一辅助供风管路2、辅助干燥器20及第二辅助供风管路3依次连通，且第二辅助供风管路3还能够与电力机车的受电弓连通。其中，压缩机内的压缩空气能够经辅助干燥器20干燥后通往受电弓，即：辅助压缩机1内的压缩空气可通过第一辅助供风管路2通往辅助干燥器20，该辅助干燥器20可对此压缩空气进行干燥，干燥后的压缩空气可通过第二辅助供风管路3通往受电弓，以驱动受电弓升起。此外，排污管路4与辅助干燥器20连通，辅助干燥器20在自身被干燥后产生的水分可通过排污管路4排出。
主供风系统可包括总风缸5、第一主供风管路6及第二主供风管路7，总风缸5通过第一主供风管路6能够与受电弓连通，且总风缸5通过第二主供风管路7与辅助干燥器20连通。其中，总风缸5用于存储干燥的压缩空气，且总风缸5内干燥的压缩空气能够通往受电弓和辅助干燥器20。也就是说，总风缸5内的干燥的压缩空气可通过第一主供风管路6与受电弓连通，以驱动受电弓升起；且总风缸5内的压缩空气还可通过第二主供风管路7与辅助干燥器20连通，以对辅助干燥器20进行干燥处理。
本实施方式中，通过利用总风缸5中干燥的压缩空气对辅助干燥器20进行干燥处理，相比于相关技术中通过增设额外的辅助风缸对辅助干燥器20进行干燥处理的方案，可减少供风系统中风缸等部件的数量，从而可降低供风系统的成本，另外，还可减小供风系统的整体体积，从而可降低供风系统的安装难度。
基于上述可知，本实施方式的供风系统的工作过程可为：
通过蓄电池向辅助供风系统供电，使得辅助压缩机1内的压缩空气经辅助干燥器20干燥后通往受电弓，以驱动受电弓升起；
在受电弓升起并与外界接触网接触时，使辅助压缩机1停止工作，同时启动主供风系统，此时，总风缸5内干燥的压缩空气可通往受电弓，以使受电弓保持升起的状态，稳定地与外界接触网接触，从而保证电机机车正常运行；
在受电弓内的总风达到目标值时，可使总风缸5向辅助干燥器20提供干燥的压缩空气，以将辅助干燥器20内的水分吹出，继而实现对辅助干燥器20的干燥；其中，辅助干燥器20内的水分可通过排污管路4排出。
其中，前述提到的第一辅助供风管路2、第二辅助供风管路3、第一主供风管路6及第二主供风管路7中的至少一者包括软管，如图1所示，第一辅助供风管路2包括软管15。由于软管具有良好的柔软性和重复弯曲性，因此，可根据电力机车的安装空间对软管的形态进行调整，提高了供风系统的安装灵活性，降低了供风系统的安装难度。
举例而言，此辅助供风系统还可包括第一止回阀13和第二止回阀14。此第一止回阀13和第二止回阀14为单向阀，且第一止回阀13设置在第一辅助供风管路2上；而第二止回阀14设置在第二辅助供风管路3上。其中，第一止回阀13可使辅助压缩机1内的压缩空气通往辅助干燥器20，第二止回阀14可使经辅助干燥器20干燥后的压缩空气通往受电弓，也就是说，辅助压缩机1内的压缩空气可通过第一止回阀13通往辅助干燥器20，并经辅助干燥器20干燥后通过第二止回阀14通往受电弓。
本实施方式中，通过设置第一止回阀13可防止通往辅助干燥器20的压缩空气回流至辅助压缩机1，导致辅助压缩机1受损的情况，从而延长了辅助压缩机1的使用寿命。通过设置第二止回阀14可防止通往受电弓的压缩空气通过第二辅助供风管路3回流至辅助干燥器20，导致辅助干燥器20受损的情况，从而延长了辅助干燥器20的使用寿命。
需要说明的是，辅助供风系统还可包括安全阀16和压力测试器17，此安全阀16和压力测试器17均与第一辅助供风管路2上位于辅助压缩机1与第一止回阀13的部分连通。此安全阀16用于保证辅助压缩机1的使用安全性，而压力测试器17用于测试辅助压缩机1输出的压缩空气的压力，从而判断出此时辅助压缩机1内的压力，通过检测辅助压缩机1的压力情况，可根据不同压力情况调整辅助压缩机1的工作状态，进一步保证了辅助压缩机1的使用安全性。
此外，辅助供风系统还可包括依次设置在排污管路4上的第一电磁阀18及第二电磁阀19，此第一电磁阀18和第二电磁阀19可为同种类电磁阀，也可为不同种类电磁阀， 具体视情况而定。其中，在辅助供风系统处于工作状态时，可控制第一电磁阀18及第二电磁阀19中的至少一者关闭，以避免辅助干燥器20在对压缩空气进行干燥时出现漏气(即：部分压缩供气通过排污管路4排出)的情况，保证了辅助供风系统的工作稳定性；在辅助供风系统处于非工作状态时，可通过总风缸5向辅助干燥器20输送干燥的压缩空气，以对辅助干燥器20进行干燥处理，同时，可控制第一电磁阀18和第二电磁阀19全部打开，以使辅助干燥器20内的水分可通过排污管路4排出。
在一实施方式中，供风系统还可包括第一连接管路8，第一连接管路8的一端与辅助干燥器20连通，其另一端通过三向接头分别与第一辅助供风管路2及排污管路4连通。也就是说，第一辅助供风管路2及排污管路4可通过第一连接管路8与辅助干燥器20上的同一端口连通，这样设计在不影响辅助供风系统正常工作的情况下，可减少辅助干燥器20上端口的数量，从而可提高辅助干燥器20的结构强度及密封性。此外，由于第一辅助供风管路2及排污管路4共用第一连接管路8与辅助干燥器20连通，因此，可降低供风系统中管路的成本，而且还可减少供风系统中管路所占用的空间，提高了供风系统的安装灵活性，降低了供风系统的安装难度。
其中，供风系统还可包括第二连接管路9，此第二连接管路9的一端与辅助干燥器20连通，其另一端通过三向接头分别与第二辅助供风管路3及第二主供风管路7连通。也就是说，第二辅助供风管路3及第二主供风管路7可通过第二连接管路9与辅助干燥器20上的同一端口连通，这样设计可减少辅助干燥器20上端口的数量，从而可提高辅助干燥器20的结构强度及密封性。此外，由于第二辅助供风管路3及第二主供风管路7共用第二连接管路9与辅助干燥器20连通，因此，可降低供风系统中管路的成本，而且还可减少供风系统中管路所占用的空间，提高了供风系统的安装灵活性，降低了供风系统的安装难度。
同理，供风系统还可包括第三连接管路10及第四连接管路11，第三连接管路10的一端通过三向接头分别与第二辅助供风管路3及第二主供风管路7连通；第四连接管路11的一端与总风缸5连通，且第四连接管路11的另一端通过三向接头分别与第三连接管路10的另一端及第一主供风管路6连通。这样设计可减少总风缸5上端口的数量，从而可提高总风缸5的结构强度及密封性。此外，可降低供风系统中管路的成本，而且还可减少供风系统中管路所占用的空间，提高了供风系统的安装灵活性，降低了供风系统的安装难度。
需要说明的是，前述提到的第一连接管路8、第二连接管路9、第三连接管路10及第四连接管路11中的至少一者可包括软管，以进一步提高供风系统的安装灵活性，在不影响电力机车中其他部件的安装的同时，可降低供风系统的安装难度。
在一实施方式中，第二主供风管路7内可设置有节流缩堵12，此节流缩堵12具有节流孔，总风缸5内干燥的压缩空气能够通过节流孔通往辅助干燥器20。
本实施方式中，通过在第二主供风管路7内设置节流缩堵12，以减小总风缸5中干 燥的压缩空气通往辅助干燥器20的流量，在保证对辅助干燥器20进行干燥的同时，可节省总风缸5中干燥的压缩空气的使用，降低成本。此外，由于节流缩堵12设置在第二主供风管路7内，因此，此节流缩堵12不会占用额外的空间。
其中，此节流缩堵12可与第二主供风管路7过盈配合，在保证节流缩堵12稳定地安装在第二主供风管路7中的同时，还可避免总风缸5中干燥的压缩空气从节流缩堵12与第二主供风管路7之间通过的情况，提高了节流效果。
举例而言，此节流缩堵12的节流孔具有依次连通且同轴设置的第一锥形缓冲段、直线段及第二锥形缓冲段，第一锥形缓冲段上具有最小孔径的端口与第二锥形缓冲段上具有最小孔径的端口相对设置，且直线段的孔径、第一锥形缓冲段的最小孔径及第二锥形缓冲段的最小孔径相等。
本实施方式中，通过设置第一锥形缓冲段及第二锥形缓冲段可对流经节流阀的气流具有一定的缓冲作用，以基本消除气流的波动的情况。
可选地，直线段的孔径为1mm，在保证对辅助干燥器20进行干燥的同时，可节省总风缸5中干燥的压缩空气的使用，降低成本。但不以此为限，视具体情况而定。
此外，本申请实施方式还提供了一种电力机车，其包括受电弓，还可包括上述任一项所述的电力机车用供风系统。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本申请的真正范围和精神由所附的权利要求指出。
Claims (10)
- 一种电力机车用供风系统，其特征在于，包括：辅助供风系统，所述辅助供风系统包括依次连通的辅助压缩机、第一辅助供风管路、辅助干燥器及第二辅助供风管路，以及与所述辅助干燥器连通的排污管路，且所述第二辅助供风管路还能够与所述电力机车的受电弓连通，所述辅助压缩机内的压缩空气能够经所述辅助干燥器干燥后通往所述受电弓；主供风系统，所述主供风系统包括总风缸、第一主供风管路及第二主供风管路，所述总风缸通过所述第一主供风管路能够与所述受电弓连通，且所述总风缸通过所述第二主供风管路与所述辅助干燥器连通，所述总风缸用于存储干燥的压缩空气，所述总风缸内干燥的压缩空气能够通往所述受电弓和所述辅助干燥器。
- 根据权利要求1所述的供风系统，其特征在于，还包括：第一连接管路，所述第一连接管路的一端与所述辅助干燥器连通，其另一端通过三向接头分别与所述第一辅助供风管路及所述排污管路连通。
- 根据权利要求1所述的供风系统，其特征在于，还包括：第二连接管路，所述第二连接管路的一端与所述辅助干燥器连通，其另一端通过三向接头分别与所述第二辅助供风管路及所述第二主供风管路连通。
- 根据权利要求1所述的供风系统，其特征在于，还包括：第三连接管路，所述第三连接管路的一端通过三向接头分别与所述第二辅助供风管路及所述第二主供风管路连通；第四连接管路，所述第四连接管路的一端与所述总风缸连通，所述第四连接管路的另一端通过三向接头分别与所述第三连接管路的另一端及所述第一主供风管路连通。
- 根据权利要求1所述的供风系统，其特征在于，所述第二主供风管路内设置有节流缩堵，所述节流缩堵具有节流孔，所述总风缸内干燥的压缩空气能够通过所述节流孔通往所述辅助干燥器。
- 根据权利要求5所述的供风系统，其特征在于，所述节流孔具有依次连通且同轴设置的第一锥形缓冲段、直线段及第二锥形缓冲段，所述第一锥形缓冲段上具有最小孔径的端口与所述第二锥形缓冲段上具有最小孔径的端口相对设置，且所述直线段的孔径、所述第一锥形缓冲段的最小孔径及所述第二锥形缓冲段的最小孔径相等。
- 根据权利要求6所述的供风系统，其特征在于，所述直线段的孔径为1mm。
- 根据权利要求1所述的供风系统，其特征在于，所述辅助供风系统还包括：第一止回阀，所述第一止回阀设置在所述第一辅助供风管路上；第二止回阀，所述第二止回阀设置在所述第二辅助供风管路上；其中，所述辅助压缩机内的压缩空气通过所述第一止回阀通往所述辅助干燥器，并经所述辅助干燥器干燥后通过所述第二止回阀通往所述受电弓。
- 根据权利要求1所述的供风系统，其特征在于，所述第一辅助供风管路、所述第二辅助供风管路、所述第一主供风管路及所述第二主供风管路中的至少一者包括软管。
- 一种电力机车，其特征在于，包括权利要求1至9中任一项所述的电力机车用供风系统。
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| CN113954646A (zh) * | 2021-11-23 | 2022-01-21 | 中车大连机车车辆有限公司 | 一种动力集中动车组辅助供风系统及其控制方法 |
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