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CN101956378B - Remote control device for removing snow and dust by using compressed air and control method thereof - Google Patents

Remote control device for removing snow and dust by using compressed air and control method thereof Download PDF

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Publication number
CN101956378B
CN101956378B CN200910054766.7A CN200910054766A CN101956378B CN 101956378 B CN101956378 B CN 101956378B CN 200910054766 A CN200910054766 A CN 200910054766A CN 101956378 B CN101956378 B CN 101956378B
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pressure
control
air
pressure controller
air compressor
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CN101956378A (en
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郭雷
丁军
孙国良
沈利新
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SHANGHAI FRP RESEARCH INSTITUTE Co Ltd
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SHANGHAI FRP RESEARCH INSTITUTE Co Ltd
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Abstract

The invention discloses a remote control device for removing snow and dust by using compressed air and a control method thereof. The device comprises an air compressor, an air storage tank, an air delivery pipe and a remote control system, wherein the remote control system simultaneously controls the work of the air compressor and the opening/closing of the air delivery pipe. The control method comprises the following steps of: extracting a pressure value of high-pressure air by using a pressure controller, controlling the on/off of a circuit by using pressure and simultaneously realizing the opening and closing of a vent pipe by using an electromagnetic valve. The device and the method provided by the invention have the advantages of fulfilling the aim of removing the snow and the dust by utilizing the compressed air and simultaneously achieving the effect of unmanned field operation.

Description

A kind of compressed air snow removing, dirt device and control method thereof of Long-distance Control
Technical field:
The present invention relates to a kind of unattended device and control method, particularly one is carried out Long-distance Control, and the snow removing of operatorless compressed air, dirt device and control method thereof.
Background technology:
Prior art mainly contains the following aspects in the technological means of carrying out mainly adopting aspect snow removing:
One, adopt manually.This snow-removing method is mainly by manually utilizing simple instrument that snow shovel is removed and piled up near place, operating efficiency is extremely low, and removing weak effect, can not be by clean the Snowremoval on road surface, after corresponding snow melting, can be icy on road, make road surface become sliding, easily there is traffic accident.
Two, adopt snow-removing device.The method is exactly to utilize some large-scale snow removing vehicles etc. to carry out mechanicalness snow removing, it can provide good snow removing effect, but this snow-removing device is merely able to the place relatively smooth, broad on road surface to be used, and needing many people to carry out execute-in-place, cannot remove the snow in the place higher for some physical features, road surface is narrow and small.
Three, utilize chemical snow-melting agent.Although the method is applied more convenient, its road pavement, building surface etc. cause certain corrosion.
Four, utilize Wind snow-removing device.Such snow-removing device need to manually carry out field control, and can not be well to the eminence operation that removes the snow; It,, in the time eminence being removed the snow to operation, also needs operating personnel to carry out aloft execute-in-place simultaneously, will have a strong impact on operating personnel's personal safety, and the vibration meeting simultaneously forming causes huge destruction to building or equipment.
Summary of the invention:
The present invention is directed to that the efficiency that existing various snow-clearing technique exists is respectively low, weak effect, poor practicability, need the problems such as operating personnel's execute-in-place and road pavement and building cause damage, and the device that provides a kind of high-speed wind power of utilizing the gases at high pressure of air compressor generation to form to remove the snow, also provide one to realize simultaneously this device is carried out to its pressure accumulation of unmanned Long-distance Control and venting, and allow it produce the control method of best pulsed inflation/deflation.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of compressed air snow removing of Long-distance Control, dirt device, this device comprises air compressor, gasholder, appendix and remote power feeding system, described air compressor by the pressure-air of generation be transported to gasholder store, simultaneously by appendix discharges formation high velocity air remove the snow, dust removal operation; Described remote power feeding system is controlled the work of air compressor and the ON/OFF of appendix simultaneously, makes whole device realize the On The Cycle Working Process of pressure accumulation-venting-pressure accumulation-venting.
Described remote power feeding system comprises pressure controller I, direct current electromagnetic relay, electromagnetic valve and is subject to remote controllers control and switching device that can output status signal, and described DC relay is connected the low-voltage control circuit of dc source formation control air compressor with switching device; Described electromagnetic valve is arranged on appendix, realizes the ON/OFF of appendix; Air pressure in the test side checkout gear of described pressure controller I, control end is according to the air pressure duty control solenoid valve ON/OFF detecting, with the control loop of implement device pressure accumulation-venting-pressure accumulation-deflation cycles work.
In described remote power feeding system, also comprise and realize the pressure controller II that device is carried out to pressure protect; air pressure in the test side checkout gear of this pressure controller II; control end access low-voltage control circuit; and according to the disconnection/connection of the atmospheric pressure value control low-voltage control circuit detecting; realize the job control to air compressor, reach the object of device being carried out to pressure protect.
The force value of described pressure controller II is greater than the force value of pressure controller I.
Implement control method based on said apparatus, the method comprises the following steps:
(1) control signal of switching device receiving remote controller, connects low-voltage control circuit, and DC relay energising, makes air compressor energising work;
(2) pressure controller detects in real time to device internal gas pressure, if its internal pressure value is less than the force value of pressure controller I, proceeds to step (3); If force value, between the force value of pressure controller I and the force value of pressure controller II, proceeds to step (4); If force value is greater than the force value of pressure controller II, proceed to step (5);
(3) closed electromagnetic valve, continues gasholder to carry out gas storage, and proceeds to step (2);
(4) control electromagnetic valve and open, externally venting, and proceed to step (2);
(5) control electromagnetic valve and open, externally venting, and control air compressor and quit work, proceed to step (6);
(6), if the atmospheric pressure value in device is less than after the force value of pressure controller II, controls air compressor and start working, and proceed to step (2).
The real-time working state signal by whole device of described switching device transfers to Long-distance Control.
The compressed air snow removing of the Long-distance Control obtaining according to technique scheme, dirt device can be realized and form by gases at high pressure that high velocity air removes the snow and the object of dedusting; Whole apparatus structure simply, easily realize.
This device is realized the object of low voltage control high pressure by corresponding DC electromagnetic valve, pressure controller, realize the overvoltage protection to device simultaneously, so greatly the safety of stiffening device operation.
This device is that the high velocity air producing by gases at high pressure removes the snow, dedusting work, and operating efficiency is high, effective, can road pavement or building surface impact.Simultaneously can to far, higher place removes the snow, dedusting work, do not have operation dead angle.
In this device, by its corresponding switching device, make this device can realize operated from a distance, and work under unmanned condition, greatly strengthen practicality and the operability of this device.
Control method provided by the invention is simple easily to be realized, and can be good at implement device and under unmanned condition, carry out work, can be according to the work of air compressor in the big or small automaton of device internal gas pressure value, the circulating working mode of implement device gas storage-venting-gas storage-venting.
In the time that air pressure is excessive, can controls immediately air compressor and quit work, and exit, greatly the processing safety of stiffening device.
This control method realizes Long-distance Control by corresponding switching device, and the equipment status information of device can be sent to remote control, make to control accordingly personnel and can recognize timely the work state information of device, to timely it is carried out to duty adjustment.
Accompanying drawing explanation:
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the electrical schematic diagram of apparatus of the present invention.
Fig. 3 is the flow chart of the inventive method.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Carry out the control of long-range strange land by radar, satellite and the network equipment, realize and under unmanned condition, make equipment run well, it is ideal in general controlling by level signal, and signal only has two kinds, high level and low level, the pressure value that is different its logic level of chip is also different.For example CMOS, its high level, logical one is+4.99V, its low level, logical zero is 0.01V, under current conditions, can be worth to represent its high level and low level by+5V and two pressures of 0V.Realize easy Digital Signals analog signal, can select D.C. regulated power supply, can realize with direct current electromagnetic relay and realize DC low-voltage electric control high-tension electricity.
Based on above-mentioned principle, the invention provides a kind of compressed air snow removing, dirt device of Long-distance Control.
Referring to Fig. 1, this device is mainly made up of air compressor 1, gasholder 2, appendix 3, electromagnetic valve 4 and four pressure controller 5a-5d.
The producible pressure-air of air compressor 1 in this device, and be transported to gasholder 2 by corresponding carrier pipe 102 and store, gasholder 2 is discharged gases at high pressure by appendix 3 simultaneously and is formed that high velocity air removes the snow, dust removal operation.
In order to have certain compressive property, appendix 3 can adopt steel pipe.Wherein electromagnetic valve 4 arranges on this appendix 4, as the switch of this appendix 4, realizes appendix ventilation or gas shutoff.
Work for device can be realized under unmanned condition, four pressure controller 5a-5d are successively set on the appendix 3 between gasholder 2 and electromagnetic valve 4.The force value of these four pressure controller 5a-5d increases successively, be Pa (5a) < Pa (5b) < Pa (5c) < Pa (5d) < Pa (max), the maximum pressure value that wherein Pa (max) can bear for whole device.
Air compressor 1, appendix 3, electromagnetic valve 4 and four pressure controller 5a-5d in device are controlled by remote power feeding system respectively simultaneously, and make whole device realize the On The Cycle Working Process of pressure accumulation-venting-pressure accumulation-venting.
Referring to Fig. 2, in order to achieve the above object, the composition of remote power feeding system also comprises constant voltage dc source 7, alternating current electromagnetic relay, fuse 11, direct current electromagnetic relay, switching device 8 and the time relay 10.On switching device 8, there is RCI, can the control of receiving remote control device by this interface; Simultaneously can be to remote control dispensing device working state signal, while breaking down, should make on request output status signal is low level (0V), on the contrary while normally work, output status signal is high level (+5V).
Constant voltage dc source 7 can 220V alternating current convert 5V direct current to, for whole low-voltage control circuit provides electric energy.
Direct current electromagnetic relay, for controlling the work of air compressor 1, is controlled the work of the motor 102 on it.
Fuse 11 is for the overcurrent protection to motor on air compressor.
Specifically connect referring to Fig. 2, whole remote power feeding system mainly contains low voltage control part and two compositions of high-pressure work part, wherein low voltage control part comprises the coil 601 of constant voltage dc source 7, pressure controller 5d and 5a, switching device 8 and DC electromagnetic valve, and they connect to form a low-voltage control circuit successively.
The wherein switch controlling signal of switching device 8 receiving remote control device, realizes conducting and the disconnection of low-voltage control circuit; Corresponding work state information is sent to remote control simultaneously.
Constant voltage dc source 7 also connects the alternating current of 220V, and the direct current that converts thereof into 5V provides electric energy for low voltage control part.
The coil 601 of DC electromagnetic valve accesses low-voltage control circuit, and its constant open contact is linked in the power-on circuit of motor 102 in air compressor, realizes the control to air compressor.When low-voltage control circuit conducting energising, the coil 601 of DC electromagnetic valve is switched on, and will control its constant open contact closure, makes motor 102 energising work in air compressor; Otherwise, when low-voltage control circuit disconnects, coil 601 dead electricity of DC electromagnetic valve, its closed constant open contact will separate, and motor 102 power-off in air compressor are quit work.
Pressure controller 5d connects its constant close contact, and pressure controller 5a connects its constant open contact; The time relay 10 and pressure controller 5a access low-voltage control circuit simultaneously, and connect its constant close contact.This three forms an alarm protecting apparatus, pressure detector 5d detects when device internal pressure is greater than its pressure value P a (5d), to disconnect low-voltage control circuit, and stop air compressor work and realize protection, and send working state signal by switching device and carry out fault alarm; Pressure detector 5a detects when device internal pressure is greater than its pressure value P a (5a), the closed conducting low-voltage control circuit of its constant open contact, when the pressure detecting is not more than its pressure value P a (5a), its contact is in normally open, in the setting-up time of the time relay 10, if when the force value detecting could not be greater than its pressure value P a (5a), the time relay 10 will disconnect, making low pressure detect loop disconnects, stop air compressor work, and send working state signal by switching device and carry out fault alarm.
High-pressure work part mainly comprises motor 102, pressure controller 5b and 5c, electromagnetic valve 4 and the AC relay of air compressor.
Wherein motor 102 is subject to the control of DC relay constant open contact 602, also accesses fuse 11 simultaneously and carries out overcurrent protection.
Pressure controller 5b, 5c and electromagnetic valve 4 connect to form a venting control loop successively, pressure controller 5b, 5c connect its corresponding constant open contact, in this venting control loop, be connected in series the coil 901 of AC relay simultaneously, be linked in venting control loop and the constant open contact of the constant open contact of AC relay and pressure controller 5c is in parallel, realize thus the control of electromagnetic valve exit/the hold periodic duty of gas.
While wherein installing the pressure value P a (5c) that inner air pressure is greater than pressure controller 5c, be also greater than the pressure value P a (5b) of pressure controller 5b, the constant open contact of pressure controller 5b and 5c is closed conducting venting control loop all, appendix venting is opened in electromagnetic valve energising, the coil electricity of AC relay simultaneously, its constant open contact closure.
When device inner air pressure reduces, but between Pa (5c) and Pa (5b) time, the constant open contact of pressure controller 5c closure disconnects, but due to the constant open contact closure of AC relay, the still conducting of venting control loop, continues to exit.
When device inner air pressure further reduces, in the time being less than Pa (5b), the constant open contact of pressure controller 5c closure disconnects, whole venting control loop disconnects, electromagnetic valve power-off is closed appendix and is held gas, until device inner air pressure is while being greater than Pa (5c), start the venting of next round.
The compressed air snow removing of the Long-distance Control obtaining according to technique scheme, dirt device, the control method of its specific works as shown in Figure 3:
While starting working, there is remote control transmit button closure signal to switching device, this switching device closure, the whole low-voltage control circuit of conducting.
220V alternating voltage becomes and makes 5V DC voltage after constant voltage dc source 7, for whole low-voltage control circuit provides electric energy.The coil electricity of 5V DC relay, its constant open contact closure, the motor energising of air compressor is started working, and now the time relay 10 will disconnect after x min, will make whole low-voltage control circuit disconnect.Owing to just starting, the air pressure minimum in device is normal pressure, is less than the pressure value P a (5a) of pressure controller 5a, and pressure controller 5b-5c disconnects, and electromagnetic valve 4 cuts out, and whole device enters the pressure accumulation stage.This stage, whole device was working properly, and switching device output status signal is high level (+5V).
After the pressure accumulation of x min, if the air pressure Pa in device is not still greater than the pressure value P a (5a) of pressure controller 5a, pressure controller 5a will be in open-circuit condition, and the time relay 10 also disconnects, whole low-voltage control circuit disconnects, and the motor 102 of air compressor quits work.Be now abnormal operating state, by output low level signal (0V).
In the pressure accumulation stage, make air pressure Pa in device between Pa (5a) and Pa (5d), the now constant open contact closure of pressure controller 5a, low-voltage control circuit is in conducting state; And the normally closed point of this stage time relay after xmin disconnects.Be now normal operating conditions, output high level signal (+5V).
The closed path that forms together with pressure controller 5d constant close contact of constant open contact of pressure controller 5a is supported the work of 5V direct current electromagnetic relay.
When device in air pressure Pa >=Pa (5c) time, the constant open contact closure of pressure controller 5c, because Pa is now also greater than Pa (5b), the constant open contact of pressure controller 5b is also closed, control loop conducting makes to exit, the alternating current electromagnetic valve 4 of 220V is worked, and opens ventilating pipe venting, forms high velocity air in gas outlet.
Now, on venting control loop, the coil 901 of AC relay is switched on, and makes its constant open contact 902 closures, forms self-insurance.
In deflation course, air pressure in device reduces, when its low pressure Pa is less than Pa (5c), and while being more than or equal to Pa (5b), the constant open contact of pressure controller 5c closure disconnects, but the constant open contact of pressure controller 5b is still closed, simultaneously because the constant open contact 902 of AC relay is also in closure state, the still conducting of control loop that makes to exit, electromagnetic valve 4 works on, ventilating pipe is still opened venting, forms lasting high velocity air in gas outlet.
After further exitting, the air pressure Pa in device is less than after Pa (5b), and the closed constant open contact of pressure controller 5b disconnects, the control loop that makes to exit disconnects, and electromagnetic valve dead electricity quits work, and will close ventilating pipe, stop venting, enter into the pressure accumulation stage.Now also dead electricity of the coil of AC relay, disconnects the constant open contact 902 that it is closed.Until device in air pressure Pa >=Pa (5c) time, start again venting, until Pa < Pa (5b) starts to enter into pressure accumulation, can realize and so forth pressure accumulation-blowing, reach snow removing (dirt) object under unmanned condition.Such state belongs to normal operating conditions, and output status signal is high level (+5V).
In the time that whole device breaks down:
1, stop up, gas circuit has some setbacks, make after the pressure Pa >=Pa (5d) in device, the constant close contact of pressure control 5d will disconnect, low-voltage control circuit is disconnected, electric wire 601 dead electricity of the DC relay of 5V, disconnect the constant open contact 602 that it is closed, from but motor 102 power-off of air compressor quit work.Can reach overvoltage protection to device like this.
2, seriously gas leakage, when air pressure Pa in device is less than Pa (5a), the closed constant close contact of pressure controller 5a will disconnect, due to the now time relay 10 and disconnection, whole low-voltage control circuit is disconnected, the direct current electromagnetic relay control of 5V also will quit work, and whole system quits work too.After system restart, in the time of pressure accumulation, air pressure Pa in device does not still reach Pa (5a) within x min, the normally closed point of the time relay 10 disconnects, and now pressure controller 5a because pressure Pa does not reach Pa (5a), make its constant open contact still there is no closure, thereby whole low-voltage control circuit is disconnected.The now direct current electromagnetic relay control of 5V also will quit work, and whole system quits work too.Under above-mentioned both of these case, output status signal is low level (0V).
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (5)

1. the compressed air of Long-distance Control snow removing, dirt device, it is characterized in that, described device comprises air compressor, gasholder, appendix and remote power feeding system, described air compressor by the pressure-air of generation be transported to gasholder store, simultaneously by appendix discharges formation high velocity air remove the snow, dust removal operation; Described remote power feeding system is controlled the work of air compressor and the ON/OFF of appendix simultaneously, makes whole device realize the On The Cycle Working Process of pressure accumulation-venting-pressure accumulation-venting; Described remote power feeding system comprises pressure controller I, direct current electromagnetic relay, electromagnetic valve and is subject to remote controllers control and switching device that can output status signal, and described DC relay is connected the low-voltage control circuit of dc source formation control air compressor with switching device; Described electromagnetic valve is arranged on appendix, realizes the ON/OFF of appendix; Air pressure in the test side checkout gear of described pressure controller I, control end is according to the air pressure duty control solenoid valve ON/OFF detecting, with the control loop of implement device pressure accumulation-venting-pressure accumulation-deflation cycles work.
2. the compressed air of a kind of Long-distance Control according to claim 1 snow removing, dirt device; it is characterized in that; in described remote power feeding system, also comprise and realize the pressure controller II of device being carried out to pressure protect; air pressure in the test side checkout gear of this pressure controller II; control end access low-voltage control circuit; and according to the disconnection/connection of the atmospheric pressure value control low-voltage control circuit detecting, realize the job control to air compressor, reach the object of device being carried out to pressure protect.
3. the compressed air of a kind of Long-distance Control according to claim 2 snow removing, dirt device, is characterized in that, the force value of described pressure controller II is greater than the force value of pressure controller I.
4. the compressed air snow removing of the Long-distance Control that the snow removing of the compressed air based on a kind of Long-distance Control, dirt device are implemented, the control method of dirt device, is characterized in that, said method comprising the steps of:
(1) control signal of switching device receiving remote controller, connects low-voltage control circuit, and DC relay energising, makes air compressor energising work;
(2) pressure controller detects in real time to device internal gas pressure, if its internal pressure value is less than the force value of pressure controller I, proceeds to step (3); If force value, between the force value of pressure controller I and the force value of pressure controller II, proceeds to step (4); If force value is greater than the force value of pressure controller II, proceed to step (5);
(3) closed electromagnetic valve, continues gasholder to carry out gas storage, and proceeds to step (2);
(4) control electromagnetic valve and open, externally venting, and proceed to step (2);
(5) control electromagnetic valve and open, externally venting, and control air compressor and quit work, proceed to step (6);
(6), if the atmospheric pressure value in device is less than after the force value of pressure controller II, controls air compressor and start working, and proceed to step (2).
5. the control method of the compressed air of Long-distance Control according to claim 4 snow removing, dirt device, is characterized in that, the real-time working state signal by whole device of described switching device transfers to Long-distance Control.
CN200910054766.7A 2009-07-14 2009-07-14 Remote control device for removing snow and dust by using compressed air and control method thereof Active CN101956378B (en)

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* Cited by examiner, † Cited by third party
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CN108682176B (en) * 2018-05-15 2023-10-13 浙江泊客电子科技股份有限公司 Parking system with fault self-checking and fault information feedback functions
CN112281737A (en) * 2020-10-27 2021-01-29 上海市政工程设计研究总院(集团)有限公司 Automatic snow removing device for ramp
CN114618830B (en) * 2020-12-14 2023-04-11 山东富锐光学科技有限公司 Automatic dust removal device and dust removal method for laser radar

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2137001Y (en) * 1992-04-25 1993-06-23 邯邢冶金矿山管理局玉石洼铁矿 Electric-controlling valve type pressure regulator
CN2218118Y (en) * 1994-11-25 1996-01-24 朱其胜 On-board washing apparatus
WO2001001208A1 (en) * 1999-06-24 2001-01-04 Dyson Limited Appliance user interface
CN2564231Y (en) * 2002-07-16 2003-08-06 王金沧 Dust collector filter tube dust removal device
CN1811624A (en) * 2005-01-24 2006-08-02 乐金电子(沈阳)有限公司 Dust cleaning device and method for filter of image display device
CN101625567A (en) * 2008-07-07 2010-01-13 贵阳铝镁设计研究院 Bus control method for pulse bag type dust cleaner and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2137001Y (en) * 1992-04-25 1993-06-23 邯邢冶金矿山管理局玉石洼铁矿 Electric-controlling valve type pressure regulator
CN2218118Y (en) * 1994-11-25 1996-01-24 朱其胜 On-board washing apparatus
WO2001001208A1 (en) * 1999-06-24 2001-01-04 Dyson Limited Appliance user interface
CN2564231Y (en) * 2002-07-16 2003-08-06 王金沧 Dust collector filter tube dust removal device
CN1811624A (en) * 2005-01-24 2006-08-02 乐金电子(沈阳)有限公司 Dust cleaning device and method for filter of image display device
CN101625567A (en) * 2008-07-07 2010-01-13 贵阳铝镁设计研究院 Bus control method for pulse bag type dust cleaner and device

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