CN101581315B - Water pump control method and water pump control system in rail vehicle water supply system - Google Patents
Water pump control method and water pump control system in rail vehicle water supply system Download PDFInfo
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- CN101581315B CN101581315B CN2008100978288A CN200810097828A CN101581315B CN 101581315 B CN101581315 B CN 101581315B CN 2008100978288 A CN2008100978288 A CN 2008100978288A CN 200810097828 A CN200810097828 A CN 200810097828A CN 101581315 B CN101581315 B CN 101581315B
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Abstract
The invention relates to a water pump control method and a water pump control system in a rail vehicle water supply system for controlling a water pump to continuously operate. When tail-end water equipment on a vehicle is closed, water pumped by the water pump flows back to a water tank through a bypass pipeline. When the water pump control system is powered down, the water pump stops operating, a water supply pipeline is cut off, and stored water in the water supply pipeline is drained out of the vehicle by opening a draining pipeline. The water pump control system comprises a process of detecting the state of continuous water flow in the water supply pipeline so as to further judge whether the water supply pipeline has leakage or not. The control system ensures that the water pump can be continuously operated regardless of whether the tail-end water equipment on the vehicle is used or not by arranging the bypass pipeline and a bypass valve and guarantees that the water supply pipeline cannot be frozen in winter. Moreover, the control system is also additionally provided with the draining pipeline and a draining electromagnetic valve so as to guarantee that when the control system is powered down and the water pump does not work, the water in the water supply pipeline can be completely drained out of the vehicle and cannot be stored in the water supply pipeline, thereby the antifreezing capacity of the water pipeline in a pump room in winter is improved.
Description
Technical field
The present invention relates to a kind of water pump control method and control system, particularly a kind of water pump control method and control system that is applicable in the rail vehicle water supply system.
Background technology
The water pump control of existing rail vehicle water supply system, the flow switch that mainly relies on water pump itself to carry to the flow of water pump, and is controlled the duty of water pump; The water supply terminal has the people in use on the car, and pump working supplies water on car, still; When the unmanned use in water supply terminal on the car, water pump will quit work, and at this moment, the water in the pipeline will remain static; If in the winter time, the water in the pipeline will freeze, and causes line clogging at last, and water can't use on the car; In addition, the water supply terminal on car is provided with damage, when people's malice water is perhaps arranged; Existing water pump control system can't detect this kind situation, and water pump can supply water on car always, causes the significant wastage of water resource.Existing water pump control system, freeze-proof is poor, and does not have the anti-leak function.
Summary of the invention
Fundamental purpose of the present invention is to address the above problem and is not enough, provides a kind of working stability reliable, and can improve the water pump control method in the rail vehicle water supply system of the water lines preventing freeze in winter ability in the pump house.
Another fundamental purpose of the present invention, it is reliable to provide a kind of working stability, and can improve the control system of water pump in the rail vehicle water supply system of the water lines preventing freeze in winter ability in the pump house.
For realizing above-mentioned purpose, technical scheme of the present invention is:
Water pump control method in a kind of rail vehicle water supply system, control water pump continuous service, when terminal watering equipment was closed on the car, the water that water pump pumps was back in the water tank through bypass line; When water pump is out of service, cut off supply channel, through opening between the water delivering orifice that is arranged on water supply electromagnetic valve and the water tank and be arranged on two discharge pipe lines at pump outlet place, the water in the supply channel is back in the water tank or discharges.
Water pump control method of the present invention comprises that also being used for detecting supply channel continues streamflow regime, and then judges whether supply channel has the phenomenon of leakage.When detecting the continuous effluent time when being higher than setting-up time, the control water pump quits work, and after the release time of setting, control system is recovered operate as normal; After the system recovery operate as normal, detect the continuous effluent time once more when being higher than setting-up time, judge that then supply channel has leakage, the control water pump quits work, through hand-reset, the system recovery operate as normal.
Control system of water pump in a kind of rail vehicle water supply system comprises:
A water tank, one is arranged on the said water tank, is used to detect the level switch of high water tank;
A water pump is used for terminal watering equipment water supply on car; A filtrator is arranged on the water delivering orifice place of said water tank; An electric control unit is used to control the duty of said water pump;
Between the water delivering orifice of said water pump and said water tank, be communicated with a bypass line, be used for after terminal watering equipment is closed on the car, the water that said water pump is pumped is back in the water tank, on said bypass line, by-pass valve is set;
A water supply electromagnetic valve is arranged on the water delivering orifice and the supply channel between the said water pump of said water tank, is used to control the switching of supply channel, is normally closed solenoid valve, when said pump working, locate electric conducting state, terminal watering equipment supplies water on car;
Between the water delivering orifice of said water supply electromagnetic valve and water tank, be communicated with a discharge pipe line; At this discharge pipe line first drain solenoid valve is set; Water delivering orifice place at said water pump is communicated with the second discharge pipe line again; On this second discharge pipe line, second drain solenoid valve is set, said first drain solenoid valve and second drain solenoid valve are normally open solenoid valve, when said pump working, locate electric closed condition; Conducting after said control system dead electricity is back in the water tank water in the supply channel or discharge.
On the supply channel between said water supply electromagnetic valve and the said water pump, be provided with a sense taps, be used for detecting supply channel and have or not current, and transmit anhydrous signal.
Said by-pass valve has certain opening pressure.
An anti-leak switch is set on the pipeline between the terminal watering equipment on said pump outlet and the car, is used for detecting supply channel and continues streamflow regime, and transmit water-flow signal.When said anti-leak switch detects the continuous effluent time when being higher than setting-up time, electric control unit is controlled said water pump and is quit work, and after the release time of setting, the electric control unit control system is recovered operate as normal.After said system recovery operate as normal, said anti-leak switch detects the continuous effluent time when being higher than setting-up time once more, judges that then pipeline has leakage, and electric control unit is controlled said water pump and quit work, through hand-reset, and the system recovery operate as normal.
Content to sum up; Water pump control method and control system in the rail vehicle water supply system provided by the present invention; Through bypass line and by-pass valve are set, make water pump no matter on the car terminal watering equipment whether use can continuous service, guarantee that the water in the supply channel can not freeze in the winter time.The discharge pipe line and the drain solenoid valve that also have the present invention to set up; Can guarantee dead electricity in system; When water pump was not worked, the water in the supply channel can all be discharged outside the car, can be in supply channel water; Also further guaranteeing that supply channel can not freeze in the winter time, improving pump house inner conduit road preventing freeze in winter ability.
In addition, the present invention is provided with device for preventing leakage, can prevent effectively that from there is leakage problem in supply channel, when perhaps having people's malice to use terminal watering equipment, and the waste of water resource.
Description of drawings
Fig. 1 system schematic of the present invention.
As shown in Figure 1, water tank 1, level switch 2, water pump 3, filtrator 4, by-pass valve 5, water supply electromagnetic valve 6, drain solenoid valve 7, sense taps 8, anti-leak switch 9, drain solenoid valve 10, terminal watering equipment 11, breather valve 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As shown in Figure 1; Control system of water pump in the rail vehicle water supply system of the present invention; Comprise: a water tank 1; A water pump that is used on car, supplying water 3 is set in supply channel, at the water delivering orifice place of water tank 1 filtrator 4 is set, filtrator 4 is used for the water that filter cleaning gets into water pump 3.
Be provided with a level switch 2 at water tank 1 by the position that reaches the bottom; On the water delivering orifice of water tank 1 and the supply channel between the water pump 3, also be provided with a sense taps 8; Level switch 2 is used for detecting the liquid level of water tank 1, and whether sense taps 8 is used for detecting supply channel has water flows, no matter be that water tank 1 the inside does not have water; Still feeling taps 8 detects less than water; The electric control unit of system all can receive the anhydrous signal that is sent by level switch 2 and sense taps 8, thereby control water pump 3 quits work, and prevents that water pump 3 from moving under anhydrous state.
When the terminal watering equipment on the car 11 used, water pump 3 will be worked, and on car, supplies water; But when the terminal watering equipment 11 on the car was closed, if this moment, water pump 3 quit work; So, the water in the supply channel will be in static state, if in the winter time; The water that remains static in the supply channel so will freeze, thereby influences the water on the car.Water in supply channel freezes; Must guarantee that the water in the supply channel can be in mobile state all the time; Like this, will guarantee that water pump 3 can continuous firings, so the present invention has added a bypass line between the water delivering orifice of water pump 3 and water tank 1; On bypass line, be provided with a by-pass valve 5, by-pass valve 5 has certain opening pressure.After terminal watering equipment 11 is closed on the car; Because water pump 3 is also working on, so water pump 3 constantly pumps water, the hydraulic pressure in the supply channel is constantly raise; After the opening pressure that reaches by-pass valve 5; By-pass valve 5 is opened, and the water in the supply channel is back in the water tank, so just can guarantee water pump 3 continuous firing always.According to the water supply capacity of the water pump 3 of current track vehicle, the opening pressure of by-pass valve is set at 120KPa, can make the stable water pressure of supply channel the inside, remains on 120KPa always.
When system's dead electricity, when water pump 3 can not be worked, at this moment, in supply channel, also have some waters, in the time of in the winter time, these waters also can cause supply channel to freeze, so must the water in the supply channel be bled off.In order to address this problem; The present invention is provided with a water supply electromagnetic valve 6 on the water delivering orifice of water tank 1 and the supply channel between the water pump 3, be used to control the switching of supply channel, is normally closed solenoid valve; When water pump 3 work, locate electric conducting state, terminal watering equipment 11 supplies water on car.
Also between the water delivering orifice of water supply electromagnetic valve 5 and water tank 1, increased a discharge pipe line, a drain solenoid valve 7 is set on discharge pipe line, drain solenoid valve 7 is a normally open solenoid valve; When water pump 3 work, locate electric closed condition; At this moment, discharge pipe line breaks off, when system's dead electricity; Drain solenoid valve 7 dead electricity conductings, the water in the supply channel will be back in the water tank 1 through discharge pipe line.For the water in the supply channel is more prone to discharge, second drain solenoid valve 10 is set in supply channel, it also is a normally open solenoid valve, conducting after system's dead electricity is discharged the water in the supply channel outside the car.
The present invention is provided with an anti-leak switch 9 on the pipeline between the terminal watering equipment 11 on water pump 3 water delivering orifices and the car, be used for detecting supply channel and continue streamflow regime, and then judge whether terminal watering equipment 11 has leakage phenomenon.
When anti-leak switch 9 detects the continuous effluent time when being higher than setting-up time (generally can be set at 3 minutes); Anti-leak switch 9 will send leakage signal to the electric control unit on the car, and electric control unit will be controlled water pump 3 and quit work, simultaneously; Sanitation system on the car is unavailable; Electric control unit is reported to the police, after the release time of setting, and the system recovery operate as normal.
After the system recovery operate as normal; The time that anti-leak switch 9 detects continuous effluent once more is higher than setting-up time (3 minutes), will send leakage signal once more, and then electric control unit will judge that pipeline has leakage; Thereby electric control unit control water pump 3 quits work; Sanitation system on the car is unavailable simultaneously, and electric control unit is reported to the police, and system can not resume work automatically again; But needing staff's hand-reset (button resets or power-off restoration), operate as normal could be recovered by system.If truly have leakage in the pipeline, will wait until that the staff overhauls after, hand-reset, system resumes work again, effectively avoided because pipeline leakage, or artificial malice is used the waste of the water resource that is caused.
A breather valve 12 also is set in supply channel, is used for water pump 3 work when initial, the air in the supply channel of draining.
As stated, in conjunction with accompanying drawing and the given scheme content of embodiment, can derive the similar techniques scheme.In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (9)
1. the water pump control method in the rail vehicle water supply system is characterized in that: control water pump (3)
Continuous service, when terminal watering equipment was closed on the car, the water that said water pump (3) pumps was back in the water tank (1) through bypass line;
On the water delivering orifice of said water tank (1) and the supply channel between the said water pump (3), water supply electromagnetic valve (6) is set; When water pump (3) is out of service; Cut off supply channel; Through opening between the water delivering orifice that is arranged on said water supply electromagnetic valve (6) and the water tank (1) and be arranged on two discharge pipe lines at water pump (3) water delivering orifice place, the water in the supply channel is back in the water tank (1) or discharges.
2. the water pump control method in the rail vehicle water supply system according to claim 1 is characterized in that: also comprise detecting continuing streamflow regime in the supply channel, and then judge whether supply channel has the phenomenon of leakage.
3. the water pump control method in the rail vehicle water supply system according to claim 2; It is characterized in that: when detecting the continuous effluent time when being higher than setting-up time; Control water pump (3) quits work, and after the release time of setting, control system is recovered operate as normal;
After the system recovery operate as normal, detect the continuous effluent time once more when being higher than setting-up time, judge that then supply channel has leakage, control water pump (3) quits work, through hand-reset, the system recovery operate as normal.
4. the control system of water pump in the rail vehicle water supply system comprises:
A water tank (1);
One is arranged on the said water tank (1), is used to detect the level switch (2) of water tank (1) liquid level;
A water pump (3) is used for terminal watering equipment (11) water supply on car;
A filtrator (4) is arranged on the water delivering orifice place of said water tank (1);
An electric control unit is used to control the duty of said water pump (3);
It is characterized in that, also comprise:
Between the water delivering orifice of said water pump (3) and said water tank (1), be communicated with a bypass line, be used for after terminal watering equipment (11) is closed on the car, the water that said water pump (3) is pumped is back in the water tank (1), and by-pass valve (5) is set on said bypass line;
A water supply electromagnetic valve (6); Be arranged on the water delivering orifice and the supply channel between the said water pump (3) of said water tank (1), be used to control the switching of supply channel, be normally closed solenoid valve; When said water pump (3) is worked, locate electric conducting state, terminal watering equipment (11) supplies water on car;
Between the water delivering orifice of said water supply electromagnetic valve (6) and water tank (1), be communicated with a discharge pipe line; At this discharge pipe line first drain solenoid valve (7) is set; Water delivering orifice place at said water pump (3) is communicated with the second discharge pipe line again; Second drain solenoid valve (10) is set on this second discharge pipe line, and said first drain solenoid valve (7) and second drain solenoid valve (10) are normally open solenoid valve, when said water pump (3) is worked, locate electric closed condition; Conducting after said control system dead electricity is back in the water tank (1) water in the supply channel or discharge.
5. the control system of water pump in the rail vehicle water supply system according to claim 4; It is characterized in that: the supply channel between said water supply electromagnetic valve (6) and said water pump (3) is provided with a sense taps (8); Be used for detecting supply channel and have or not current, and transmit anhydrous signal.
6. the control system of water pump in the rail vehicle water supply system according to claim 4 is characterized in that: said by-pass valve (5) has certain opening pressure.
7. the control system of water pump in the rail vehicle water supply system according to claim 4; It is characterized in that: an anti-leak switch (9) is set on the supply channel between the terminal watering equipment (11) on said water pump (3) water delivering orifice and the car; Be used for signal piping and continue streamflow regime, and transmit water-flow signal.
8. the control system of water pump in the rail vehicle water supply system according to claim 7; It is characterized in that: when said anti-leak switch (9) detects the continuous effluent time when being higher than setting-up time; Electric control unit is controlled said water pump (3) and is quit work; After the release time of setting, the electric control unit control system is recovered operate as normal.
9. the control system of water pump in the rail vehicle water supply system according to claim 8; It is characterized in that: after said system recovery operate as normal; Said anti-leak switch (9) detects the continuous effluent time when being higher than setting-up time once more, judges that then pipeline has leakage, and electric control unit is controlled said water pump (3) and quit work; Through hand-reset, the system recovery operate as normal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100978288A CN101581315B (en) | 2008-05-16 | 2008-05-16 | Water pump control method and water pump control system in rail vehicle water supply system |
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| CN2008100978288A CN101581315B (en) | 2008-05-16 | 2008-05-16 | Water pump control method and water pump control system in rail vehicle water supply system |
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| CN101581315A CN101581315A (en) | 2009-11-18 |
| CN101581315B true CN101581315B (en) | 2012-07-04 |
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Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Patentee after: Qingdao Tongda Railway Equipment Co., Ltd. Address before: 266111 Qingdao, Chengyang District, Shandong Province town of Hong Hu spines Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Patentee before: Qingdao Tongda Railway Equipment Co., Ltd. |