CN109050505B - Locomotive wind source system - Google Patents
Locomotive wind source system Download PDFInfo
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- CN109050505B CN109050505B CN201810753664.3A CN201810753664A CN109050505B CN 109050505 B CN109050505 B CN 109050505B CN 201810753664 A CN201810753664 A CN 201810753664A CN 109050505 B CN109050505 B CN 109050505B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Drying Of Gases (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention provides a locomotive air source system, which relates to the technical field of locomotive operation safety, and comprises an air source microcomputer, an air compressor inverter, an air compressor unit, a water and oil removing filter group, a first pressure difference switch, an air dryer, a first main air cylinder, a first humidity sensor, a second main air cylinder and a second humidity sensor, wherein the first pressure difference switch is used for detecting and feeding back whether the water and oil removing filter group is smooth or not, so that the water and oil removing filter group is controlled to discharge sewage in time; the first humidity sensor is used for detecting and feeding back the humidity condition of the first main air reservoir so as to control the drainage work of the first main air reservoir; the second humidity sensor is used for detecting and feeding back the humidity condition of the second main air cylinder, so that the drainage work of the second main air cylinder is controlled, the stability of each device in the locomotive air source system is improved, the possibility of the locomotive air source system breaking down is reduced, and the problem of high repair rate of the locomotive air source system in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of locomotive operation safety, in particular to a locomotive wind source system.
Background
The locomotive braking system is an important system for providing braking force for a train to decelerate and stop the train. If the brake system has hidden dangers, the operation safety of the locomotive is seriously threatened, and therefore, the reliability and the stability of the brake system are very important. The braking operation of a locomotive brake system typically includes dynamic braking and air braking, wherein the air braking is mainly performed by means of a locomotive wind source system.
The locomotive wind source system is one of the important components of the locomotive brake system and is responsible for providing high-quality and stable compressed air which meets the specified pressure for the locomotive brake system so as to realize air braking. Therefore, the performance of the locomotive wind source system directly affects the reliability and stability of the locomotive brake system.
The existing locomotive wind source system is directly controlled by a locomotive main microcomputer, when a power supply or an input/output module (I/O module) of the locomotive main microcomputer fails, the locomotive wind source system can be directly influenced and possibly broken down, so that the existing locomotive wind source system has poor stability and high repair rate; in addition, the locomotive main microcomputer controls the locomotive wind source system in a mechanical one-way mode, when the locomotive wind source system has potential safety hazards of faults, the potential safety hazards are difficult to find and clear in time, and the existing locomotive wind source system is further high in repair rate.
Disclosure of Invention
The invention provides a locomotive wind source system, which is used for solving the problem of high repair rate of the locomotive wind source system in the prior art.
In order to achieve the above object, the locomotive air source system provided by the present invention comprises an air source microcomputer, an air compressor inverter, an air compressor unit, a water and oil removing filter set, a first differential pressure switch, an air dryer, a first main air cylinder, a first humidity sensor, a second main air cylinder and a second humidity sensor, wherein the air compressor unit, the water and oil removing filter set, the air dryer, the first main air cylinder and the second main air cylinder are sequentially communicated; the air compressor inverter, the air compressor unit and the air dryer are respectively electrically connected with the wind source microcomputer; the air compressor inverter is electrically connected with the air compressor unit and supplies power to the air compressor unit; the first pressure difference switch is connected with the water and oil removing filter group through a pipe, the first pressure difference switch is electrically connected with the air source microcomputer, the air source microcomputer compares the pressure difference of the water and oil removing filter group detected by the first pressure difference switch with a preset pressure difference, and when the pressure difference detected by the first pressure difference switch is greater than the preset pressure difference, the air source microcomputer controls the water and oil removing filter group to discharge sewage; the first humidity sensor is connected with the first main air cylinder pipe, the first humidity sensor is electrically connected with the air source microcomputer, the air source microcomputer compares the humidity of the first main air cylinder detected by the first humidity sensor with preset humidity, and when the humidity detected by the first humidity sensor is greater than the preset humidity, the air source microcomputer controls the first main air cylinder to drain water; the second humidity sensor is connected with the second main air cylinder pipe, the second humidity sensor is electrically connected with the air source microcomputer, the air source microcomputer compares the humidity of the second main air cylinder detected by the second humidity sensor with preset humidity, and when the humidity detected by the second humidity sensor is larger than the preset humidity, the air source microcomputer controls the second main air cylinder to drain water.
Compared with the prior art, the locomotive air source system provided by the invention has the following advantages:
the locomotive air source system provided by the invention comprises an air source microcomputer, an air compressor inverter, an air compressor unit, a water and oil removing filter group, a first pressure difference switch, an air dryer, a first main air cylinder, a first humidity sensor, a second main air cylinder and a second humidity sensor, wherein the first pressure difference switch is used for detecting and feeding back whether the water and oil removing filter group is smooth or not, and the air source microcomputer is used for controlling the water and oil removing filter group to discharge sewage in time so as to prevent blockage; the first humidity sensor is used for detecting and feeding back the humidity condition of the first main air reservoir, and the air source microcomputer is used for controlling the drainage work of the first main air reservoir; the second humidity sensor is used for detecting and feeding back the humidity condition of the second main air cylinder, and the air source microcomputer is used for controlling the drainage work of the second main air cylinder, so that the bidirectional intelligent control of the air source microcomputer on the locomotive air source system is realized, the stability of each device in the locomotive air source system is improved, the possibility of the locomotive air source system breaking down is reduced, and the problem of high repair rate of the locomotive air source system in the prior art is solved.
The locomotive air source system further comprises a micro oil filter and a second differential pressure switch, the micro oil filter is arranged between the air dryer and the first main air cylinder, the second differential pressure switch is electrically connected with the air source microcomputer, the second differential pressure switch is connected with the micro oil filter pipe, the air source microcomputer compares the pressure difference of the micro oil filter detected by the second differential pressure switch with a preset pressure difference, and when the pressure difference detected by the second differential pressure switch is larger than the preset pressure difference, the air source microcomputer controls the micro oil filter to discharge sewage.
The locomotive air source system further comprises a dust removal filter, and the dust removal filter is arranged between the micro oil filter and the first main air cylinder.
The locomotive air source system further comprises a safety valve, a flow transmitter, a pressure sensor and a pressure switch which are arranged between the first main air cylinder and the second main air cylinder, wherein the pressure sensor and the flow transmitter are electrically connected with the air source microcomputer, the air source microcomputer compares the pressure detected by the pressure sensor with a preset pressure, the air source microcomputer compares the flow detected by the flow transmitter with a preset flow, and when the pressure detected by the pressure sensor is smaller than the preset pressure and the flow detected by the flow transmitter is larger than the preset flow, the air source microcomputer controls the air compressor unit to start; when the pressure detected by the pressure sensor is greater than the preset pressure and the flow detected by the flow transmitter is less than the preset flow, the air source microcomputer controls the air compressor unit to stop; the pressure switch is electrically connected with the air source microcomputer, the air source microcomputer compares the pressure detected by the pressure switch with a preset pressure, and when the pressure detected by the pressure switch is smaller than the preset pressure, the air source microcomputer transmits a signal to the locomotive main microcomputer, and the locomotive main microcomputer controls the locomotive to block traction.
The locomotive air source system comprises a connecting pipeline for communicating the air compressor unit with the water and oil removing filter group, wherein the connecting pipeline comprises a rubber pipe and a stainless steel pipe, the rubber pipe is connected with the stainless steel pipe, the other end of the rubber pipe is connected with the air compressor unit, and the other end of the stainless steel pipe is connected with the water and oil removing filter group.
The locomotive air source system further comprises an air source cabinet, and the air compressor inverter, the air compressor unit, the water and oil removing filter group, the air dryer, the first main air cylinder and the second main air cylinder are arranged in the air source cabinet.
According to the locomotive air source system, the air source microcomputer is arranged in the air source cabinet, and the air source microcomputer and the air compressor inverter are respectively positioned on two opposite side walls of the air source cabinet.
According to the locomotive air source system, the side wall of the air source cabinet is provided with the interlayer, the heat dissipation part of the air compressor inverter is arranged in the interlayer, and the outlet of the first main air cylinder is provided with the pipeline for supplying air to the interlayer.
According to the locomotive wind source system, the wind source microcomputer is connected with the locomotive main microcomputer through the Ethernet.
According to the locomotive air source system, a hard wire backup is further arranged between the air source microcomputer and the locomotive main microcomputer.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the locomotive wind source system provided by the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments of the invention or prior art will be briefly described below, it being understood that the drawings in the following description are only some embodiments of the invention, and that these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate it to those skilled in the art by reference to specific embodiments, and that other drawings may be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a locomotive wind source system according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating the relationship between electrical components in the locomotive wind source system according to an embodiment of the present invention.
Description of reference numerals:
10-wind source microcomputer; 20-an air compressor inverter;
30-an air compressor unit; 31-water and oil removing filter group;
32-an air dryer; 33-a first main reservoir;
34-a second master reservoir; 35-micro oil filter;
36-a dust removal filter; 37-safety valve;
40-connecting a pipeline; 41-a first differential pressure switch;
42-a second differential pressure switch; 43-a first humidity sensor;
44-a second humidity sensor; 45-pressure sensor;
46-a pressure switch; 47-flow transmitter.
Detailed Description
In order to solve the problem of high repair rate of the existing locomotive air source system, the embodiment of the invention provides a locomotive air source system, which comprises an air source microcomputer, an air compressor inverter, an air compressor unit, a water and oil removing filter group, a first pressure difference switch, an air dryer, a first main air cylinder, a first humidity sensor, a second main air cylinder and a second humidity sensor, wherein the first pressure difference switch is used for detecting and feeding back whether the water and oil removing filter group is smooth or not, and the air source microcomputer is used for controlling the water and oil removing filter group to discharge sewage in time so as to prevent blockage; the first humidity sensor is used for detecting and feeding back the humidity condition of the first main air reservoir, and the air source microcomputer is used for controlling the drainage work of the first main air reservoir; the second humidity sensor is used for detecting and feeding back the humidity condition of the second main air cylinder, and the air source microcomputer is used for controlling the drainage work of the second main air cylinder, so that the bidirectional intelligent control of the air source microcomputer on the locomotive air source system is realized, the reliability of each device in the locomotive air source system is improved, the possibility of the locomotive air source system breaking down is reduced, and the problem of high repair rate of the locomotive air source system in the prior art is solved.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a locomotive air source system according to an embodiment of the present invention includes an air source microcomputer 10, an air compressor inverter 20, an air compressor unit 30, a water and oil removing filter set 31, a first differential pressure switch 41, an air dryer 32, a first total air tank 33, a first humidity sensor 43, a second total air tank 34, and a second humidity sensor 44, wherein,
the air compressor set 30, the water and oil removing filter set 31, the air dryer 32, the first main air reservoir 33 and the second main air reservoir 34 are communicated in sequence;
the air compressor inverter 20, the air compressor unit 30 and the air dryer 32 are electrically connected with the wind source microcomputer 10 respectively; the air compressor inverter 20 is electrically connected with the air compressor unit 30, and the air compressor inverter 20 supplies power to the air compressor unit 30;
the first pressure difference switch 41 is connected with the water and oil removing filter group 31 through a pipe, the first pressure difference switch 41 is electrically connected with the air source microcomputer 10, the air source microcomputer 10 compares the pressure difference of the water and oil removing filter group 31 detected by the first pressure difference switch 41 with a preset pressure difference, and when the pressure difference detected by the first pressure difference switch 41 is greater than the preset pressure difference, the air source microcomputer 10 controls the water and oil removing filter group 31 to discharge sewage;
the first humidity sensor 43 is connected with the first main reservoir 33 through a pipe, the first humidity sensor 43 is electrically connected with the wind source microcomputer 10, the wind source microcomputer 10 compares the humidity of the first main reservoir 33 detected by the first humidity sensor 43 with a preset humidity, and when the humidity detected by the first humidity sensor 43 is greater than the preset humidity, the wind source microcomputer 10 controls the first main reservoir 33 to drain water;
the second humidity sensor 44 is connected to the second master reservoir 34 in a pipe, the second humidity sensor 44 is electrically connected to the wind source microcomputer 10, the wind source microcomputer 10 compares the humidity of the second master reservoir 34 detected by the second humidity sensor 44 with a preset humidity, and when the humidity detected by the second humidity sensor 44 is greater than the preset humidity, the wind source microcomputer 10 controls the second master reservoir 34 to drain water.
Specifically, in the present embodiment, the air source microcomputer 10 is an air source microcomputer that controls an air source system of the locomotive, and the water and oil removing filter group 31 includes a water removing filter and an oil removing filter. The air source microcomputer 10 controls the air compressor inverter 20 to work, the air compressor inverter 20 supplies power to the air compressor unit 30, the air compressor unit 30 outputs compressed air, the compressed air is output from the air compressor unit 30 and then enters the water and oil removing filter unit 31 communicated with the air compressor unit 30, the water and oil removing filter unit 31 takes a superfine micro-pore filter screen as a main filter material, the compressed air entering the water and oil removing filter unit is subjected to rough filtration and semi-fine filtration, and the moisture and the oil in the compressed air are subjected to primary filtration.
The compressed air after the first stage of filtration enters an air dryer 32 communicated with the water and oil removing filter group 31, the air dryer 32 is controlled by an air source microcomputer 10 electrically connected with the air dryer 32, and the air dryer 32 achieves the purpose of second stage of filtration by finely filtering the compressed air through the adsorption of a drying agent; the compressed air after the second stage of filtration enters a first main air cylinder 33, a part of the compressed air is stored in the first main air cylinder 33, the first main air cylinder 33 is communicated with the main air-weight connecting pipe and supplies air for the main air-weight connecting pipe, a part of the compressed air enters a second main air cylinder 34 through the first main air cylinder 33, and the second main air cylinder 34 is communicated with the main air pipe and supplies air for the main air pipe.
As shown in fig. 1, the first differential pressure switch 41 is disposed on an inlet/outlet pipeline of the water/oil removal filter set 31 and electrically connected to the air source microcomputer 10, the first differential pressure switch 41 can detect the pressure difference between the inlet/outlet of the water/oil removal filter set 31 and convert the detected pressure difference into an electrical signal, and feed the electrical signal back to the air source microcomputer 10, and the air source microcomputer 10 recognizes the electrical signal and converts the electrical signal into a pressure difference to compare the pressure difference with a pressure difference preset in the air source microcomputer 10, thereby determining whether the water/oil removal filter set 31 is blocked or may be blocked. When the pressure difference detected by the first pressure difference switch 41 is greater than the pressure difference preset by the air source microcomputer 10, the air source microcomputer 10 controls the blow-down solenoid valve of the water and oil removing filter set 31 to open for blow-down, and the intelligent high-frequency blow-down prevents the water and oil removing filter set 31 from being blocked or enables the blocked water and oil removing filter set 31 to be unblocked. In this embodiment, the first pressure difference switch 41 is configured to detect the unobstructed situation of the water and oil removing filter set 31, and feed back the unobstructed or blocked situation of the water and oil removing filter set 31 to the air source microcomputer 10 in time, and the air source microcomputer 10 can control the opening, the opening duration and the opening time interval of the blowdown electromagnetic valve of the water and oil removing filter set 31, so as to prevent the water and oil removing filter set 31 from being blocked and reduce the possibility of the water and oil removing filter set 31 from being broken down.
As shown in fig. 1, the first humidity sensor 43 is disposed at an outlet of the first main reservoir 33 and electrically connected to the wind source microcomputer 10, the first humidity sensor 43 can detect the humidity of the first main reservoir 33, convert the detected humidity into an electrical signal, and feed the electrical signal back to the wind source microcomputer 10, and the wind source microcomputer 10 recognizes the electrical signal and converts the electrical signal into a humidity to compare the humidity with the humidity preset in the wind source microcomputer 10, thereby determining whether the first main reservoir 33 needs to accelerate the water drainage. When the humidity detected by the first humidity sensor 43 is higher than the preset humidity of the air source microcomputer 10, the air source microcomputer 10 controls the opening of the drain solenoid valve of the first master reservoir 33 to drain water. In the present embodiment, the first humidity sensor 43 is disposed to detect the humidity of the first main reservoir 33 and feed back the humidity of the first main reservoir 33 to the wind source microcomputer 10, and the wind source microcomputer 10 can control the opening, the opening duration and the opening time interval of the drain solenoid valve of the first main reservoir 33, so as to control the drain and drain cycle of the first main reservoir 33, thereby improving the reliability of the first main reservoir 33 for storing compressed air.
As shown in fig. 1, the second humidity sensor 44 is disposed at an outlet of the second master reservoir 34 and electrically connected to the wind source microcomputer 10, the second humidity sensor 44 can detect the humidity of the second master reservoir 34, convert the detected humidity into an electrical signal, and feed the electrical signal back to the wind source microcomputer 10, and the wind source microcomputer 10 recognizes the electrical signal and converts the electrical signal into a humidity to compare the humidity with the humidity preset in the wind source microcomputer 10, thereby determining whether the second master reservoir 34 needs to accelerate the water discharge. When the humidity detected by the second humidity sensor 44 is higher than the preset humidity of the air source microcomputer 10, the air source microcomputer 10 controls the opening of the drain solenoid valve of the second master reservoir 34 to drain water. In the present embodiment, the second humidity sensor 44 is disposed to detect the humidity condition of the second master reservoir 34 and feed back the humidity condition of the second master reservoir 34 to the air source microcomputer 10 in time, and the air source microcomputer 10 can control the opening, the opening duration and the opening time interval of the drain electromagnetic valve of the second master reservoir 34, so as to control the drain and drain cycle of the second master reservoir 34, thereby improving the reliability of the second master reservoir 34 for storing compressed air.
In summary, in the locomotive air source system provided by this embodiment, the air source microcomputer 10 is disposed in the air source system, the first pressure difference switch 41 is disposed in the water and oil removing filter group 31, the first humidity sensor 43 is disposed on the first main reservoir 33, the second humidity sensor 44 is disposed on the second main reservoir 34, the first pressure difference switch 41 is used to detect and feed back the unobstructed or blocked condition of the water and oil removing filter group 31, and the air source microcomputer 10 is used to control the water and oil removing filter group 31 to discharge sewage in time, so as to prevent blockage; the humidity condition of the first main reservoir 33 is detected and fed back by the first humidity sensor 43, and the drainage work of the first main reservoir 33 is controlled by the wind source microcomputer 10; the second humidity sensor 44 is used for detecting and feeding back the humidity condition of the second main air cylinder 34, and the air source microcomputer 10 is used for controlling the drainage work of the second main air cylinder 34, so that the bidirectional intelligent control of the air source microcomputer 10 on the locomotive air source system is realized, the stability of each device in the locomotive air source system is improved, the possibility of the locomotive air source system breaking down is reduced, and the problem of high repair rate of the locomotive air source system in the prior art is solved.
As shown in fig. 1, the locomotive air source system further includes a micro oil filter 35 and a second differential pressure switch 42, the micro oil filter 35 is disposed between the air dryer 32 and the first main air tank 33, the second differential pressure switch 42 is connected to the micro oil filter 35 through a pipe, the second differential pressure switch 42 is electrically connected to the air source microcomputer 10, the air source microcomputer 10 compares the pressure difference of the micro oil filter 35 detected by the second differential pressure switch 42 with a preset pressure difference, and when the pressure difference detected by the second differential pressure switch 42 is greater than the preset pressure difference, the air source microcomputer 10 controls the micro oil filter 35 to discharge the pollutants.
Specifically, as shown in fig. 1, the second differential pressure switch 42 is disposed on an inlet/outlet pipeline of the micro oil filter 35 and electrically connected to the wind source microcomputer 10, the second differential pressure switch 42 can detect a pressure difference between the inlet/outlet of the micro oil filter 35 and convert the detected pressure difference into an electrical signal, and feed the electrical signal back to the wind source microcomputer 10, and the wind source microcomputer 10 recognizes the electrical signal and converts the electrical signal into a pressure difference to compare the pressure difference with a pressure difference preset in the wind source microcomputer 10, thereby determining whether the micro oil filter 35 is clogged or may be clogged. When the pressure difference detected by the second pressure difference switch 42 is greater than the pressure difference preset by the air source microcomputer 10, the air source microcomputer 10 controls the blow-down solenoid valve of the micro oil filter 35 to open for blow-down, and the blockage of the micro oil filter 35 is prevented through intelligent high-frequency blow-down, or the micro oil filter 35 which has been blocked is unblocked. In this embodiment, the second pressure difference switch 42 is arranged to detect the unobstructed state or blocked state of the micro oil filter 35, and feed back the unobstructed state or blocked state of the micro oil filter 35 to the air source microcomputer 10 in time, and the air source microcomputer 10 can control the opening, the opening duration and the opening time interval of the blowdown electromagnetic valve of the micro oil filter 35, so as to prevent the micro oil filter 35 from being broken down due to blockage, and reduce the possibility of the micro oil filter 35 breaking down.
As shown in fig. 1, the locomotive air source system further includes a dust removal filter 36, and the dust removal filter 36 is disposed between the micro-oil filter 35 and the first main air tank 33. Specifically, the dust filter 36 filters out impurities such as dust in the compressed air by using filter materials such as borosilicate nano glass fibers. The dust removing filter 36 is arranged between the micro-oil filter 35 and the first main air cylinder 33, so that compressed air entering the first main air cylinder 33 is cleaner, and the purpose of third-pole filtering is achieved.
As shown in fig. 1, the locomotive air source system further includes a safety valve 37, a flow transmitter 47, a pressure sensor 45 and a pressure switch 46, which are disposed between the first main reservoir 33 and the second main reservoir 34, wherein the pressure sensor 45 and the flow transmitter 47 are electrically connected to the air source microcomputer 10, the air source microcomputer 10 compares a pressure detected by the pressure sensor 45 with a preset pressure, the air source microcomputer 10 compares a flow detected by the flow transmitter 47 with a preset flow, and when the pressure detected by the pressure sensor 45 is less than the preset pressure and the flow detected by the flow transmitter 47 is greater than the preset flow, the air source microcomputer 10 controls the air compressor unit 30 to start; when the pressure detected by the pressure sensor 45 is greater than the preset pressure and the flow detected by the flow transmitter 47 is less than the preset flow, the wind source microcomputer 10 controls the air compressor unit 30 to stop; the pressure switch 46 is electrically connected with the air source microcomputer 10, the air source microcomputer 10 compares the pressure detected by the pressure switch 46 with a preset pressure, and when the pressure detected by the pressure switch 46 is smaller than the preset pressure, the air source microcomputer 10 transmits a signal to the locomotive main microcomputer, and the locomotive main microcomputer controls the locomotive to block traction.
Specifically, the safety valve 37 is arranged between the first main air reservoir 33 and the second main air reservoir 34, so that reliable operation of the safety valve can be ensured, and the overall stability of the locomotive air source system is improved; the pressure sensor 45 determines the pressure of the compressed air of the whole locomotive air source system by directly detecting the pressure of the compressed air at the outlet of the first main air cylinder 33; since the first reservoir 33 is connected to a device consuming compressed air, the flow rate of the compressed air at the outlet of the first reservoir 33 is constantly changing, and thus the flow rate of the compressed air at the outlet of the first reservoir 33 is detected by the flow rate transmitter 47. The wind source microcomputer 10 can control the air compressor unit 30 to start or stop based on the pressure of the compressed air in the first reservoir 33 fed back from the pressure sensor 45 and the flow rate detected by the flow rate transmitter 47. The wind source microcomputer 10 can control the air compressor unit 30 to perform the no-load operation or the delay operation according to the actual operation time of the air compressor unit 30, thereby preventing the engine oil in the air compressor unit 30 from being emulsified. The wind source microcomputer 10 can transmit a signal to the locomotive main microcomputer according to the pressure of the whole wind source system pipeline detected by the pressure switch 46. At the same time, the relief valve 37 opens to relieve the overload pressure when the pressure in the line exceeds a limit. In this embodiment, the pressure sensor 45 and the flow transmitter 47 are arranged to detect the pressure and flow conditions of the first main reservoir 33 and feed the pressure and flow conditions of the first main reservoir 33 back to the air source microcomputer 10 in time, and the air source microcomputer 10 can control the start or stop of the air compressor set 30 and can also control the air compressor set 30 to perform idle running or delayed running according to the actual running time of the air compressor set 30, so that the working efficiency of the air compressor set 30 is improved, and the possibility of the air compressor set 30 failing is reduced.
The connecting line 40 for communicating the air compressor unit 30 with the water and oil removing filter set 31 comprises a rubber tube and a stainless steel tube, the rubber tube is connected with the stainless steel tube, the other end of the rubber tube is connected with the air compressor unit 30, and the other end of the stainless steel tube is connected with the water and oil removing filter set 31. Specifically, the air compressor unit 30 and the water and oil removing filter group 31 are connected by a rubber tube, and then a stainless steel tube is connected behind the rubber tube, so that the situation that the connecting pipeline 40 between the air compressor unit 30 and the water and oil removing filter group 31 is broken or the two ends of the connecting pipeline 40 are loosened and slide due to continuous vibration of the air compressor unit 30 in the working process can be avoided, and the stability of the connecting pipeline 40 between the air compressor unit 30 and the water and oil removing filter group 31 is ensured.
The locomotive air source system further comprises an air source cabinet, wherein the air compressor inverter 20, the air compressor unit 30, the water and oil removing filter group 31, the air dryer 32, the first main air reservoir 33 and the second main air reservoir 34 are arranged in the air source cabinet. In the embodiment, the air compressor inverter 20, the air compressor unit 30, the water and oil removing filter group 31, the air dryer 32, the first main air reservoir 33 and the second main air reservoir 34 are arranged in one air source cabinet, so that the pipeline connection among the above devices is facilitated, and the subsequent overhaul and maintenance of the locomotive air source system are facilitated.
The wind source microcomputer 10 is arranged in the wind source cabinet, and the wind source microcomputer 10 and the air compressor inverter 20 are respectively located on two opposite side walls of the wind source cabinet. Specifically, the wind source microcomputer 10 is also arranged in the wind source cabinet, the wind source microcomputer 10 is electrically connected with the air compressor inverter 20, the wind source microcomputer 10 and the air compressor inverter 20 are respectively arranged on two opposite side walls of the wind source cabinet, a certain safety distance can be ensured between the wind source microcomputer 10 and the air compressor inverter 20 as well as between the air compressor unit 30 connected with the air compressor inverter 20, and the electromagnetic induction generated by the air compressor inverter 20 and the air compressor unit 30 is prevented from interfering with the normal operation of the wind source microcomputer 10.
An interlayer is arranged on the side wall of the air source cabinet, the heat dissipation part of the air compressor inverter 20 is arranged in the interlayer, and a pipeline for supplying air to the interlayer is arranged at the outlet of the first main air cylinder 33. Specifically, in the present embodiment, the air compressor inverter 20 is disposed on one side wall of the air source cabinet, and the heat dissipation portion of the air compressor inverter 20 is connected to the side wall of the air source cabinet and located in the interlayer; the first main air cylinder 33 can provide compressed air filtered and cooled by each filtering device in the locomotive air source system for the interlayer, so that the air compressor inverter 20 is cooled, and the possibility of the air compressor inverter 20 being in failure is reduced.
The wind source microcomputer 10 is connected with the locomotive main microcomputer through the Ethernet. Specifically, as shown in fig. 2, the wind source microcomputer 10 is used for controlling the locomotive wind source system, for receiving and processing signals fed back by the air compressor inverter 20, the air compressor unit 30, the air dryer 32, the first differential pressure switch 41, the second differential pressure switch 42, the first humidity sensor 43, the second humidity sensor 44, the pressure sensor 45, the pressure switch 46 and the flow transmitter 47, in the embodiment, the wind source microcomputer 10 analyzes and processes the data in the locomotive wind source system, only a small part of important data in the locomotive wind source system is transmitted to the locomotive main microcomputer, the arrangement of the wind source microcomputer 10 can reduce the load of the locomotive main microcomputer, prevent the locomotive main microcomputer from collapsing due to overlarge data processing pressure, even if the locomotive main microcomputer has a local fault, the wind source microcomputer 10 can continuously control the locomotive wind source system to normally work, and the stability and the reliability of the locomotive wind source system are improved.
A hard-line backup is also arranged between the wind source microcomputer 10 and the locomotive main microcomputer. Specifically, the hard-line backup between the wind source microcomputer 10 and the locomotive main microcomputer is non-network cable connection, and the arrangement of the hard-line backup ensures that the locomotive main microcomputer can continuously control the normal work of the locomotive wind source system through the hard-line connection after the wind source microcomputer 10 breaks down, so that the stability and the reliability of the locomotive wind source system are improved.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A locomotive air source system comprises an air compressor set, a water and oil removing filter set, an air dryer, a first main air cylinder and a second main air cylinder which are sequentially communicated, and is characterized by also comprising an air source microcomputer, an air compressor inverter, a first differential pressure switch, a first humidity sensor and a second humidity sensor, wherein,
the air compressor inverter, the air compressor unit and the air dryer are respectively in micro-electromechanical connection with the air source, the air compressor inverter is electrically connected with the air compressor unit, and the air compressor inverter supplies power to the air compressor unit;
the first pressure difference switch is connected with the water and oil removing filter group through a pipe, the first pressure difference switch is electrically connected with the air source microcomputer, the air source microcomputer compares the pressure difference of the water and oil removing filter group detected by the first pressure difference switch with a preset pressure difference, and when the pressure difference detected by the first pressure difference switch is greater than the preset pressure difference, the air source microcomputer controls the water and oil removing filter group to discharge sewage;
the first humidity sensor is connected with the first main air cylinder pipe, the first humidity sensor is electrically connected with the air source microcomputer, the air source microcomputer compares the humidity of the first main air cylinder detected by the first humidity sensor with preset humidity, and when the humidity detected by the first humidity sensor is greater than the preset humidity, the air source microcomputer controls the first main air cylinder to drain water;
the second humidity sensor is connected with the second main air cylinder pipe, the second humidity sensor is electrically connected with the air source microcomputer, the air source microcomputer compares the humidity of the second main air cylinder detected by the second humidity sensor with preset humidity, and when the humidity detected by the second humidity sensor is larger than the preset humidity, the air source microcomputer controls the second main air cylinder to drain water.
2. The locomotive air source system according to claim 1, further comprising a micro oil filter and a second differential pressure switch, wherein the micro oil filter is disposed between the air dryer and the first main air tank, the second differential pressure switch is connected to the micro oil filter pipe, the second differential pressure switch is electrically connected to the air source microcomputer, the air source microcomputer compares a pressure difference of the micro oil filter detected by the second differential pressure switch with a preset pressure difference, and when the pressure difference detected by the second differential pressure switch is greater than the preset pressure difference, the air source microcomputer controls the micro oil filter to discharge the sewage.
3. The locomotive air source system of claim 2, further comprising a dust removal filter disposed between the micro oil filter and the first main reservoir.
4. The locomotive air source system of claim 1 or 3, further comprising a safety valve, a flow transmitter, a pressure sensor, and a pressure switch disposed between the first main reservoir and the second main reservoir, wherein,
the pressure sensor and the flow transmitter are electrically connected with the wind source microcomputer, the wind source microcomputer compares the pressure detected by the pressure sensor with a preset pressure, the wind source microcomputer compares the flow detected by the flow transmitter with a preset flow, and when the pressure detected by the pressure sensor is smaller than the preset pressure and the flow detected by the flow transmitter is larger than the preset flow, the wind source microcomputer controls the air compressor unit to start; when the pressure detected by the pressure sensor is greater than the preset pressure and the flow detected by the flow transmitter is less than the preset flow, the air source microcomputer controls the air compressor unit to stop;
the pressure switch is electrically connected with the air source microcomputer, the air source microcomputer compares the pressure detected by the pressure switch with a preset pressure, and when the pressure detected by the pressure switch is smaller than the preset pressure, the air source microcomputer transmits a signal to the locomotive main microcomputer, and the locomotive main microcomputer controls the locomotive to block traction.
5. The locomotive air source system according to claim 1, wherein a connection pipeline connecting the air compressor set and the water and oil removing filter set comprises a rubber tube and a stainless steel tube, the rubber tube is connected with the stainless steel tube, the other end of the rubber tube is connected with the air compressor set, and the other end of the stainless steel tube is connected with the water and oil removing filter set.
6. The locomotive air source system of claim 1, further comprising an air source cabinet, wherein the air compressor inverter, the air compressor train, the water and oil removal filter bank, the air dryer, the first main reservoir and the second main reservoir are disposed in the air source cabinet.
7. The locomotive wind system of claim 6, wherein the wind source microcomputer is disposed in the wind source cabinet, and the wind source microcomputer and the air compressor inverter are respectively located on two opposite sidewalls of the wind source cabinet.
8. The locomotive air source system according to claim 7, wherein an interlayer is disposed on a sidewall of the air source cabinet, the heat dissipation portion of the air compressor inverter is disposed in the interlayer, and a pipeline for supplying air to the interlayer is disposed at an outlet of the first main reservoir.
9. The locomotive wind park system according to claim 1, wherein the wind park microcomputer is connected to the locomotive main microcomputer by an ethernet network.
10. The locomotive wind regime system of claim 9, further comprising a hard-wired backup between the wind regime microcomputer and the locomotive main microcomputer.
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| CN111891171B (en) * | 2020-08-10 | 2021-07-16 | 中车株洲电力机车有限公司 | Control method and system for main compressor of power-concentrated motor train unit |
| CN113581150B (en) * | 2021-07-02 | 2022-06-07 | 交控科技股份有限公司 | Brake system for rail vehicles adapted to a detachable car body |
| CN114212068B (en) * | 2021-11-24 | 2023-06-30 | 中车大连机车车辆有限公司 | Electric-pneumatic vacuum dual-mode braking system of diesel locomotive |
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| US6514051B2 (en) * | 2001-03-16 | 2003-02-04 | Bendix Commercial Vehicle Systems, Llc. | Oil filter used in combination with a heat generating element |
| KR101157561B1 (en) * | 2009-10-26 | 2012-06-18 | 대우버스(주) | air supply system in the bus |
| CN202728243U (en) * | 2012-04-09 | 2013-02-13 | 西南交通大学 | Automatic water-removal oil-removal filtering device of locomotive air source system |
| CN104842985B (en) * | 2015-04-14 | 2017-12-01 | 中航爱维客汽车有限公司 | Air-pressure brake air supply controller and light bus |
| CN105083299B (en) * | 2015-07-31 | 2019-03-26 | 中车大同电力机车有限公司 | A kind of air supply method and device ensureing train wind |
| CN106882176B (en) * | 2017-03-03 | 2023-03-28 | 湖南铁道职业技术学院 | Locomotive air source system and control assembly and control method of air source purification device of locomotive air source system |
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