CN109808729A - A kind of wind-supply unit air cleaner auto cleaning system with warning function - Google Patents
A kind of wind-supply unit air cleaner auto cleaning system with warning function Download PDFInfo
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- CN109808729A CN109808729A CN201910159692.7A CN201910159692A CN109808729A CN 109808729 A CN109808729 A CN 109808729A CN 201910159692 A CN201910159692 A CN 201910159692A CN 109808729 A CN109808729 A CN 109808729A
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- air
- air cleaner
- wind
- supply unit
- cleaning system
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- 238000004140 cleaning Methods 0.000 title claims abstract description 35
- 238000010926 purge Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of wind-supply unit air cleaner auto cleaning system with warning function, including electric control circuit, controlled circuit and gas circuit execution unit, when the blocking of the air cleaner of wind-supply unit causes certain pressure change, pressure switch closure in electric control circuit, the wind-supply unit in the electric control circuit triggering controlled circuit stops working therewith, while triggering cleaning of the gas circuit execution unit unlatching to the air cleaner.The present invention can automatically detect the stopping state of the air cleaner of wind-supply unit, and automatically turn on the cleaning to it, while guaranteeing that the air compressor machine of wind-supply unit stops working in air cleaner cleaning and running to ensure safety;After the purge time of primary air filter is completed in control, then it is automatically stopped the cleaning to air cleaner, while wind-supply unit is resumed work.
Description
Technical field
The present invention relates to rail vehicle wind-supply unit field more particularly to a kind of wind-supply unit air with warning function
Filter auto cleaning system.
Background technique
Wind-supply unit for providing compressed air to brake and drive system for vehicle with tow is often placed in the electric power rail of open body frame
On road vehicle, wind-supply unit needs to be drawn through during operation the filtered air of air cleaner, through air compressor into
The gas of specified pressure is exported after row compression, because open body frame is directly communicated with atmosphere, the quality of air quality is depended on
The real time environment of vehicle running section influences clean-up performance and the maintenance period of air filtering core, in air particle content compared with
Gao Shi, be easy blocking air filtering core, shorten the maintenance period of air filtering core, once and air filtering core block, wind-supply unit is not
Enough air can be sucked, the compression work of air is unable to complete, the damage of filter core is caused under serious situation, once filter core damages
Bad, filtered air enters the piston cylinder of compressor, causes piston inordinate wear, influences the service life of wind-supply unit,
It also will affect the normal operation of power track vehicle simultaneously.Though the air filtering core of existing power track vehicle wind-supply unit has
Warning function, but air filtering core blocking warner is only executed by a mechanical structure, and is located at the air feed list of vehicle bottom
In member, the alarm signal for occurring to issue when blocked state is not easy to be found.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of wind-supply unit air-filtering with warning function
Device auto cleaning system, the technical solution is as follows:
The present invention provides a kind of wind-supply unit air cleaner auto cleaning system with warning function, for confession
The air cleaner of wind unit is cleaned, and the cleaning systems include that electric control circuit, controlled circuit and gas circuit execute list
Member, the electric control circuit include the first power supply, pressure switch, controller, solenoid valve, contactor coil, the controlled electricity
Road includes normally closed type contactless contactor corresponding with the contactor coil, and the normally closed type contactless contactor controls second source
With the on-off of wind-supply unit;
First power supply, pressure switch connect to form the first branch with controller, and the pressure switch is supplied for detecting
Pressure in wind unit at air cleaner and the on-off for controlling the first branch;The solenoid valve, contactor coil setting
In second branch, the controller controls the on-off of first power supply and second branch;
The gas circuit execution unit includes for providing the gas source of air-flow to air cleaner, and the solenoid valve is according to
The on-off of first power supply and second branch controls the on-off of gas circuit between the gas source and air cleaner.
Further, the controller includes executes switch, and the second branch is switched and described the by the execution
The connection of one power supply, the execution switch are acted according to the control instruction of controller.
Further, the controller further includes the timer for timing, and the controller controls after the completion of timing
The execution switch disconnects.
Further, the electric control circuit further includes force start button, relay coil and corresponding normally closed type
Relay switch, first power supply, force start button connect to form third branch with relay coil, the normally closed type after
Electric switch is used to control the on-off of first power supply and second branch.
Further, the gas circuit execution unit further includes the check valve being arranged between the gas source and air cleaner
And/or pressure-regulating device, the solenoid valve are two-position two-way solenoid valve, the conducting direction of the check valve is from gas source to sky
The direction of air cleaner.
Further, the gas source of the gas circuit execution unit includes air compressor and air accumulator, and the air accumulator is used for
Store the compressed air of the air compressor output.
Further, the gas source of the gas circuit execution unit is the gas source of wind-supply unit, and the air accumulator has at least two
A exhaust outlet.
Further, the gas circuit execution unit further includes air dryer and/or safety valve, and the air dryer is set
It sets between the air compressor and air accumulator, the safety valve is arranged on the pipeline before the air accumulator air inlet.
Further, the electric control circuit further includes warning device, and the warning device is arranged at described second
Lu Zhong.
Further, the electric control circuit further includes the first breaker, and first breaker is for controlling first
Power supply;The controlled circuit further includes the second breaker, and second breaker is for controlling second source;The second source
For three-phase alternating-current supply, the three-phase motor of air compressor is connect by second breaker and normally closed type in the wind-supply unit
Tentaculum switch is connect with the second source.
Technical solution bring provided by the invention has the beneficial effect that:
A. the blocked state of detection air cleaner automatically, it is accurate trigger gas circuit execution unit to the air cleaner into
Row gas flow purging effectively removes the particulate matter blocked on air cleaner;
B. while triggering gas circuit execution unit purging, wind-supply unit is automatically cut off, it is ensured that blow to air cleaner
It sweeps off wind-supply unit during blocking up to stop working, to prevent the particulate matter purged from entering air compressor by back suction;
C. check valve, pressure-regulating device and safety valve are rationally designed in gas circuit execution unit, it is ensured that air-filtering
The air-flow safety that device is purged;
D. force start button is rationally designed, effectively after control logic erroneous condition occurs in controller, to wind-supply unit
Air compressor carry out force start, i.e., cleaning systems are initialized.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the electric control circuit figure of air cleaner auto cleaning system provided in an embodiment of the present invention;
Fig. 2 is the electric control circuit figure for the cleaning systems that another preferred embodiment of the present invention provides;
Fig. 3 is the controlled circuit figure of air cleaner auto cleaning system provided in an embodiment of the present invention;
Fig. 4 is the cleaning gas circuit schematic diagram of air cleaner auto cleaning system provided in an embodiment of the present invention.
Wherein, appended drawing reference includes: the first power supply of 11-, 12- pressure switch, 13- controller, 14- solenoid valve, 15- contact
Device coil, 16- force start button, 17- relay coil, 18- normal closing type relay switch, 19- warning device, 21- are normally closed
Formula contactless contactor, 22- second source, 31- check valve, 32- pressure-regulating device, 33- safety valve, 34- air dryer,
41- air cleaner, 42- air compressor, 43- air accumulator, 44- three-phase motor, the first breaker of 51-, the second open circuit of 52-
Device.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Covering non-exclusive includes to be not necessarily limited to for example, containing the process, method of a series of steps or units, device, product or equipment
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
In one embodiment of the invention, it is automatic to provide a kind of wind-supply unit air cleaner with warning function
Cleaning systems are cleaned for the air cleaner 41 to wind-supply unit, and the cleaning systems include electric control circuit, quilt
Circuit and gas circuit execution unit are controlled, as shown in Figure 1, the electric control circuit includes the first power supply 11, pressure switch 12, control
Device 13, solenoid valve 14, contactor coil 15, as shown in figure 3, the controlled circuit includes corresponding with the contactor coil 15
Normally closed type contactless contactor 21, the normally closed type contactless contactor 21 control the on-off of second source 22 and wind-supply unit;
First power supply 11, pressure switch 12 connect to form the first branch with controller 13, and the pressure switch 12 is used
In the pressure detected in wind-supply unit at air cleaner 41 and the on-off for controlling the first branch;The solenoid valve 14 connects
Tentaculum coil 15 is arranged in second branch, and the controller 13 controls the on-off of first power supply 11 and second branch;
As shown in figure 4, the gas circuit execution unit includes for providing the gas source of air-flow, the electricity to air cleaner 41
Magnet valve 14 controls gas circuit between the gas source and air cleaner 41 according to the on-off of first power supply 11 and second branch
On-off.
As shown in Figure 1, the course of work of air cleaner auto cleaning system provided in this embodiment is as follows:
When air cleaner blocks, in wind-supply unit under the suction of air compressor, air cleaner
Between 41 and outer barrel pressure can (pressure switch 12 be installed in this area compared with pressure reduction of air cleaner when unplugged
Domain), when pressure reduction is to preset pressure threshold, the closure of pressure switch 12 in this region is installed at this time and (is being detached from the pressure
After force threshold, the pressure switch 12 can disconnect automatically), the first branch conducting, i.e., controller 13 receives a triggering
Signal, it is that the solenoid valve 14 and contactor coil 15 in second branch are powered that the controller 13, which controls the first power supply 11, at this time.
In the case where the contactor coil 15 obtains electric, the normally closed type contactless contactor 21 on the controlled circuit becomes disconnected from closure
It opens, then second branch disconnects, and the three-phase motor 42 of wind-supply unit compressor powers off, then wind-supply unit stops working;On the other hand,
In the case where the solenoid valve 14 obtains electric, the gas circuit execution unit work, i.e., gas source is provided to the air cleaner 41
The air-flow of certain pressure, the air-flow purge the air cleaner 41, are blocked in the air cleaner with removal
Particle or dust on 41 release the blockage of the air cleaner 41.And once wind-supply unit stops working, then it is described
Negative pressure between air cleaner 41 and outer barrel will be eliminated, then pressure switch 12 disconnects, again to the pressure switch 12
New triggering is carried out when closure to the controller.
Preferably, the electric control circuit further includes warning device 19, and the warning device 19 is arranged described second
In branch, as shown in Figure 1 or 2, the warning device 19 is connected with the solenoid valve 14, and the present invention is to the warning device 19
Link position be not construed as limiting, for example it may be arranged as connecting with the contactor coil 15, or be arranged on main line.
Secondly, the solenoid valve 14 and contactor coil 15 can be connected in parallel as shown in the figure, can also be connected in series (not shown), this
Invention it should be noted that the connection relationship of the solenoid valve 14, contactor coil 15, warning device 19 in second branch not
It is regarded as limiting the foundation of the scope of the present invention.
In a practical situation, once the gas consumption being pre-stored in wind-supply unit 4 is complete, the shape that wind-supply unit 4 stops working
State is unfavorable for the safe operation of rail vehicle.Therefore, in a preferred embodiment of the invention, the controller 13 further includes
For the timer of timing, the controller controls the execution switch after the completion of timing and disconnects, and specific timing can
It is taking human as setting, such as the timing of setting 20s, then described after the pressure switch 12 is closed trigger controller 13, meter
When device start timing, after reaching 20s, the controller 13, which controls first power supply 11, to be stopped being that second branch is powered, specifically
Ground, the controller 13 include executing switch, and the second branch is connect by execution switch with first power supply 11,
The execution switch is acted according to the control instruction of controller 13.For example, the execution, which switchs, can be selected an electromagnetism relay
Device, when pressure switch 12 is closed, then controller 13 exports a high level to the electromagnetic relay, and electromagnetic relay closes
It closes;When timing terminates, then controller 13 exports a low level to the electromagnetic relay, and electromagnetic relay disconnects.
In a preferred embodiment of the invention, the electric control circuit further includes force start button 16, relay
Device coil 17 and corresponding normal closing type relay switch 18, as shown in Fig. 2, first power supply 11, force start button 16 with
The series connection of relay coil 17 forms third branch, and the normal closing type relay switch 18 is used to control first power supply 11 and the
The on-off of two branches.The advantages of this preferred embodiment is, when controller 13 control logic when something goes wrong, such as when timing
Between arrived after, do not cut off the power supply of second branch, then need to press force start button 16 at this time, the conducting of third branch,
I.e. relay coil 17 obtains electric, and accordingly, the long enclosed relay switch 18 disconnects, then the first power supply 11 and second branch are strong
System disconnects, and as above-mentioned, with 15 power loss of contactor coil, then the normally closed type contactless contactor 21 restores closure, institute
It states second source 22 and wind-supply unit is connected, wind-supply unit is resumed work, until pressure switch 12 next time is closed.
The structure of the gas circuit execution unit is illustrated below, referring to fig. 4, the gas circuit execution unit is in addition to gas
Source further includes the check valve 31 being arranged between the gas source and air cleaner 41, pressure-regulating device 32, air dryer
34 and safety valve 33, the conducting direction of the check valve 31 is from gas source to the direction of air cleaner 41, and its role is to anti-
Only filtered air return, the effect of the pressure-regulating device 32 are for gas pressure to be reduced to suitable purging air
The size of filter, the solenoid valve 14 is two-position two-way solenoid valve, when the two-position two-way solenoid valve obtains electric, the electromagnetism
The ejection of valve 14 (ejects to the right) in Fig. 4, so that gas circuit is connected.Specifically, the gas source of the gas circuit execution unit includes air
Compressor 42 and air accumulator 43, the air accumulator 43 are used to store the compressed air that the air compressor 42 exports, the sky
Gas dryer 34 is arranged between the air compressor 42 and air accumulator 43, and its role is to the skies to air accumulator 43 to be deposited
Gas is dried, and the safety valve 33 is arranged on the pipeline before 43 air inlet of air accumulator, the work of the safety valve 33
Excessive with the stream pressure for being to prevent from entering air accumulator 43, when being more than certain pressure value, the safety valve 33 is opened with slow
Excessive stream pressure is solved, guarantees the safety of air-flow storing process.
Above-mentioned air compressor 42 and air accumulator 43 can be for independently of the gas sources other than wind-supply unit, or more preferably
Ground, the gas source of the gas circuit execution unit and the gas source of wind-supply unit are to utilize the air pressure of wind-supply unit itself with one
The gas (being stored in air accumulator) of contracting machine compression purges air cleaner 41 to be cleaned in wind-supply unit, the storage
Gas tank 43 leads to the air cleaner 41 at least two exhaust outlets, i.e. one of them, another is normal railcar
The outlet of wind-supply unit.
As shown in Figure 1, the electric control circuit further includes the first breaker 51, first breaker 51 is for controlling
First power supply 11;As shown in figure 3, the controlled circuit further includes the second breaker 52, second breaker 52 is for controlling
Second source 22;The second source 22 is three-phase alternating-current supply, the three-phase motor 44 of air compressor in the wind-supply unit
It is connect by second breaker 52 and normally closed type contactless contactor 21 with the second source 22.
Wind-supply unit air cleaner auto cleaning system of the invention includes electric control circuit, controlled circuit and gas circuit
Execution unit, the pressure when the blocking of the air cleaner of wind-supply unit causes certain pressure change, in electric control circuit
Power closes the switch, and the wind-supply unit in the electric control circuit triggering controlled circuit stops working therewith, while triggering gas circuit
Execution unit opens the cleaning to the air cleaner.The present invention can automatically detect the air-filtering of wind-supply unit
The stopping state of device, and the cleaning to it is automatically turned on, while guaranteeing that the air compressor machine of wind-supply unit is clear in air cleaner
It stops working when clean and runs to ensure safety;After the purge time of primary air filter is completed in control, then it is automatically stopped to sky
The cleaning of air cleaner, while wind-supply unit is resumed work.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wind-supply unit air cleaner auto cleaning system with warning function, for the air filter to wind-supply unit
Clear device (41) is cleaned, which is characterized in that the cleaning systems include that electric control circuit, controlled circuit and gas circuit execute list
Member, the electric control circuit include the first power supply (11), pressure switch (12), controller (13), solenoid valve (14), contactor
Coil (15), the controlled circuit includes normally closed type contactless contactor (21) corresponding with the contactor coil (15), described
The on-off of normally closed type contactless contactor (21) control second source (22) and wind-supply unit;
First power supply (11), pressure switch (12) connect to form the first branch with controller (13), the pressure switch
(12) it is used to detect the pressure at air cleaner in wind-supply unit (41) and controls the on-off of the first branch;The electromagnetism
Valve (14), contactor coil (15) are arranged in second branch, and the controller (13) controls first power supply (11) and the
The on-off of two branches;
The gas circuit execution unit includes for providing the gas source of air-flow, solenoid valve (14) basis to air cleaner (41)
The on-off of first power supply (11) and second branch controls the on-off of gas circuit between the gas source and air cleaner (41).
2. air cleaner auto cleaning system according to claim 1, which is characterized in that the controller (13) includes
Switch is executed, the second branch is connect by execution switch with first power supply (11), and the execution switchs basis
The control instruction of controller and act.
3. air cleaner auto cleaning system according to claim 2, which is characterized in that the controller (13) is also wrapped
The timer for timing is included, the controller controls the execution switch after the completion of timing and disconnects.
4. air cleaner auto cleaning system according to claim 1, which is characterized in that the electric control circuit is also
(18) are switched including force start button (16), relay coil (17) and corresponding normal closing type relay, first power supply
(11), force start button (16) connects to form third branch with relay coil (17), the normal closing type relay switch
(18) for controlling the on-off of the first power supply (11) and second branch.
5. air cleaner auto cleaning system according to claim 1, which is characterized in that the gas circuit execution unit is also
It is described including the check valve (31) and/or pressure-regulating device (32) being arranged between the gas source and air cleaner (41)
Solenoid valve (14) is two-position two-way solenoid valve, and the conducting direction of the check valve (31) is from gas source to air cleaner (41)
Direction.
6. air cleaner auto cleaning system according to claim 1, which is characterized in that the gas circuit execution unit
Gas source includes air compressor (42) and air accumulator (43), and the air accumulator (43) is defeated for storing the air compressor (42)
Compressed air out.
7. air cleaner auto cleaning system according to claim 6, which is characterized in that the gas circuit execution unit
Gas source is the gas source of wind-supply unit, and the air accumulator (43) has at least two exhaust outlets.
8. air cleaner auto cleaning system according to claim 6, which is characterized in that the gas circuit execution unit is also
Including air dryer (34) and/or safety valve (33), the air dryer (34) is arranged in the air compressor (42)
Between air accumulator (43), the safety valve (33) is arranged on the pipeline before the air accumulator (43) air inlet.
9. air cleaner auto cleaning system according to claim 1, which is characterized in that the electric control circuit is also
Including warning device (19), the warning device (19) is arranged in the second branch.
10. air cleaner auto cleaning system according to claim 1, which is characterized in that the electric control circuit
It further include the first breaker (51), first breaker (51) is for controlling the first power supply (11);The controlled circuit also wraps
It includes the second breaker (52), second breaker (52) is for controlling second source (22);The second source (22) is three
Phase AC power source, the three-phase motor (44) of air compressor passes through second breaker (52) and normally closed in the wind-supply unit
Formula contactless contactor (21) is connect with the second source (22).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910159692.7A CN109808729B (en) | 2019-03-04 | 2019-03-04 | Air supply unit air cleaner self-cleaning system with alarming function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910159692.7A CN109808729B (en) | 2019-03-04 | 2019-03-04 | Air supply unit air cleaner self-cleaning system with alarming function |
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CN109808729A true CN109808729A (en) | 2019-05-28 |
CN109808729B CN109808729B (en) | 2024-06-07 |
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CN201910159692.7A Active CN109808729B (en) | 2019-03-04 | 2019-03-04 | Air supply unit air cleaner self-cleaning system with alarming function |
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Cited By (1)
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CN113777004A (en) * | 2021-08-20 | 2021-12-10 | 东风华神汽车有限公司 | Automatic maintenance verification device and method for air filter |
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CN209581508U (en) * | 2019-03-04 | 2019-11-05 | 克诺尔车辆设备(苏州)有限公司 | A kind of wind-supply unit air cleaner auto cleaning system with warning function |
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CN203355488U (en) * | 2013-07-26 | 2013-12-25 | 济宁市齐力机电设备有限公司 | Air filter system of numerically-controlled plasma cutting machine |
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