CN102635539B - The power system of long-range nurse tanker water pump and the long-range nurse tanker of this system is housed - Google Patents
The power system of long-range nurse tanker water pump and the long-range nurse tanker of this system is housed Download PDFInfo
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- CN102635539B CN102635539B CN201210096490.0A CN201210096490A CN102635539B CN 102635539 B CN102635539 B CN 102635539B CN 201210096490 A CN201210096490 A CN 201210096490A CN 102635539 B CN102635539 B CN 102635539B
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Abstract
The present invention relates to long-range nurse tanker field, for water pump power system architecture in prior art is complicated, bulky or energy loss is large, the flimsy problem of pump, the present invention proposes a kind of power system, and it comprises motor, Electro-hydraulic Proportional Displacement variable displacement pump driven by the engine, to be connected with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump and safety unloading valve parallel with one another and switch valve, to be connected and to drive the oil hydraulic motor of water pump, filter, fuel tank and hydraulic oil pipeline with the outlet of switch valve; When switch valve cuts out and safety unloading valve plays unloading valve effect, the in-line of oil hydraulic motor is closed; When switch valve is opened and safety unloading valve plays safety valve effect, the rotating speed of oil hydraulic motor finally controls pump rotary speed by regulating Electro-hydraulic Proportional Displacement variable pump delivery, and then regulates pump operating condition.Adoption rate discharge capacity variable displacement pump, its discharge capacity can regulate by the program preset automatically according to working conditions change.So just overcome technical problem of the prior art.
Description
Technical field
The present invention relates to long-range nurse tanker field, particularly relate to the power system for long-range nurse tanker water pump.
Background technique
When the mankind resist various major disaster as carried out fire-fighting fire extinguishing, Emergency water supply and Urban Waterlogging, long-range nurse tanker can play an important role.Therefore, long-range nurse tanker is subject to the great attention of every country and governments at all levels, has wide market.In long-range nurse tanker, the power system of water pump is one of critical component.The power system of the water pump of existing long-range nurse tanker mainly contains two kinds, a kind of power-driven power system being diesel engine-generator-motor and forming, i.e. diesel engine drive electrical generators generating, then supply motor and drive pump sump, the major defect of this power system is complex structure, bulky, layout is deficient flexible, large by the restriction of site environment factor; Another kind is the hydraulic power system that diesel engine-quantitative hydraulic pump-oil hydraulic motor is formed, namely diesel engine drives quantitative hydraulic pump, then by liquid medium flow by Energy transfer to oil hydraulic motor, drive pump sump, the major defect of this power system is that system energy loss is large, main manifestations is spill losses, and pump operating condition adjustment is realized by diesel engine speed change, and this mode easily causes oil hydraulic pump to damage.
Summary of the invention
For solving the problem that in prior art, water pump power system causes, namely otherwise complex structure, bulky, arrange and owe flexibly, energy loss is large, oil hydraulic pump is fragile, the present invention proposes a kind of power system, and this power system comprises motor, by this engine-driven Electro-hydraulic Proportional Displacement variable displacement pump, to be connected and safety unloading valve parallel with one another and switch valve, to be connected and to drive the oil hydraulic motor of water pump, filter, fuel tank and hydraulic oil pipeline with the outlet of described switch valve with the oil outlet of this Electro-hydraulic Proportional Displacement variable displacement pump; When described switch valve cuts out and safety unloading valve plays unloading valve effect, the in-line of oil hydraulic motor is closed; When described switch valve is opened and described safety unloading valve plays safety valve effect, the rotating speed of described oil hydraulic motor finally controls pump rotary speed by regulating Electro-hydraulic Proportional Displacement variable pump delivery, and then regulates pump operating condition.
Due to hydraulicdriven high power density feature, flexible pipe flexibly connects feature and the stepless of electrohydraulic proportional variable pump volumetric speed control seamlessly transits feature, make that system architecture is compact, flexible arrangement, easy to adjust and energy-conservation, can overcome the complex structure of the electric drive system of diesel engine-generator-motor, bulky, arrange that the energy loss of the hydraulic driving system of owing and diesel engine-quantitative hydraulic pump-oil hydraulic motor large by the restriction of site environment factor is flexibly large, pump operating condition regulates and realizes easily causing the defects such as oil hydraulic pump damage by diesel engine speed change.
Preferably, described Electro-hydraulic Proportional Displacement variable displacement pump comprises base pump, position transducer, variable cylinder and Proportional valve.
Preferably, described safety unloading valve is the two-way cartridge-type safety unloading valve be made up of the first pilot valve, pressure regulation cover plate and pressure plug-in unit.
Preferably, described switch valve is the two-way cartridge-type hydraulic-controlled switch valve be made up of the second pilot valve, shuttle valve cover plate and direction plug-in unit.
The present invention also provides a kind of long-range nurse tanker, in this long-range nurse tanker, any one power system above-mentioned is housed.
Preferably, this long-range nurse tanker also comprises the oil pipe coil system that the high pressure oil pipeline of the oil hydraulic motor in power system and low pressure oil pipeline are wound up or decontroled; This oil pipe coil system comprises the first solenoid directional control valve, high-pressure oil pipe pipe crimping motor, high-pressure oil pipe reel, high-pressure rotary joint and low pressure fuel pipe pipe crimping motor, low pressure fuel pipe reel and low pressure swivel coupling; The in-line that described high-pressure oil pipe reel is arranged on described oil hydraulic motor coordinates with described high-pressure rotary joint and reels or decontrol described high pressure oil pipeline; The drain line that described low pressure fuel pipe reel is arranged on described oil hydraulic motor coordinates with described low pressure swivel coupling and reels or decontrol described low pressure oil pipeline; To be Median Function be the solenoid directional control valve of " Y " type to described first solenoid directional control valve and the filler opening of this first solenoid directional control valve is connected with the filler opening of filter with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump respectively with return opening; Filler opening and the oil outlet of the actuator port of described first solenoid directional control valve and described high-pressure oil pipe pipe crimping motor and described low pressure fuel pipe pipe crimping motor are connected; Described high pressure oil pipe crimping motor and low pressure oil pipe crimping motor are led in hydraulic oil parallel connection through described first solenoid directional control valve, and return described fuel tank from the hydraulic oil parallel connection that described high pressure oil pipe crimping motor and described low pressure oil pipe crimping motor are discharged through described first solenoid directional control valve; The speed of described oil pipe coil system folding and unfolding oil pipe is undertaken by regulating described Electro-hydraulic Proportional Displacement variable pump delivery.
Preferably, described long-range nurse tanker also comprises the cable winch system for putting down or mention oil hydraulic motor and water pump, and this cable winch system comprises and has that Median Function is second solenoid directional control valve of " Y " type, winch motor, shuttle valve, equilibrium valve and break; The filler opening of described second solenoid directional control valve is connected with the filler opening of filter with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump respectively with return opening, first actuator port of the second solenoid directional control valve is connected with the forward filler opening of winch motor, the forward oil outlet of winch motor is connected with the second actuator port of the second solenoid directional control valve through equilibrium valve, first actuator port of shuttle valve cross-over connection second solenoid directional control valve and the second actuator port, pressure hydraulic fluid port connects break; When described second solenoid directional control valve is meta, winch oil inlet and outlet and oil return are led to, and oil pressure is zero, and winch is braked under the effect of break, locks outer load; When described second solenoid directional control valve is in working position and described safety unloading valve plays safety valve effect, oil hydraulic motor and water pump described in outer load folding and unfolding can be carried out; The rotating speed of winch is undertaken by the described Electro-hydraulic Proportional Displacement variable displacement pump of regulation and control.
Preferably, described long-range nurse tanker also comprises radiation system, and described radiation system comprises forced air cooler, and the filler opening of this forced air cooler is connected with the leakage hydraulic fluid port of described Electro-hydraulic Proportional Displacement variable displacement pump, and the oil outlet of described forced air cooler is connected with described fuel tank.
This invention contemplates a kind of long-range nurse tanker of fully hydraulic driven, it is flexible, easy to adjust and by advantages such as the restriction of site environment factor are few that its hydraulic system has high power density, mounting arrangements, can be widely used in fire-fighting, city emergency supplies water, the field such as water drainage fast.。
The present invention is compared with background technique, and the beneficial effect had is:
1, compact structure, flexible arrangement, can absorb water at a distance.Present system drive water pump oil hydraulic motor can with centrifugal water pump integrated installation, play the high power density advantage of hydraulic system, small in volume, adopt the logical oil of high pressure hose, hose length can folding and unfolding according to water source distance, realization absorbs water at a distance and pipeline can be arranged arbitrarily, little by environment space constraint;
2, energy saving of system, operation regulate automaticity high.Present system variable displacement pump regulates and adopts electro-hydraulic proportional control technology, and pump operating condition adopts hydraulic volume speed-regulating scheme to be regulated by variable speed, and without throttling and spill losses, system effectiveness is high, automaticity and reliability high;
3, present system can be widely used in multiple field such as fire-fighting, city emergency water supply, fast water drainage.
Accompanying drawing explanation
Fig. 1 is the power system loop of long-range nurse tanker water pump of the present invention and the schematic diagram of other auxiliary functions.
Embodiment
As shown in Figure 1, the power system of long-range nurse tanker water pump of the present invention comprises the filter 3 on motor 13 (, being often referred to diesel engine here), the Electro-hydraulic Proportional Displacement variable displacement pump 1 driven by motor 13, the safety unloading valve 4 playing set pressure effect, the switch valve 5 playing on-off action, the oil hydraulic motor 9 driving water pump, fuel tank 14, hydraulic pipe line and return line.Here, Electro-hydraulic Proportional Displacement variable displacement pump 1 comprises base pump 1.1, position transducer 1.2, variable cylinder 1.3 and Proportional valve 1.4.Preferably, safety unloading valve 4 comprises the first pilot valve 4.1, pressure regulation cover plate 4.2 and pressure plug-in unit 4.3, and they form two-way cartridge-type safety unloading valve 4, and it can set up two high pressure; Switch valve 5 comprises the second pilot valve 5.1, shuttle valve cover plate 5.2 and direction plug-in unit 5.3, and their form two-way cartridge-type hydraulic-controlled switch valve valve 5, and it is used for switch and leads to the oil circuit of oil hydraulic motor 9.Safety unloading valve 4 and switch valve 5 parallel connection, their filler opening is connected with the oil outlet P of Electro-hydraulic Proportional Displacement variable displacement pump 1, the oil outlet of safety unloading valve 4 is connected with the filler opening T1 of filter 3, the oil outlet A of switch valve 5 is connected with the filler opening A1 of oil hydraulic motor 9 through pipeline, the oil outlet B1 of oil hydraulic motor 9 is connected with the filler opening T1 of filter 3 through pipeline, and filter 3 oil outlet T leads to fuel tank 14 by return line.
This power system adoption rate discharge capacity variable displacement pump, its discharge capacity can be regulated by Proportional valve 1.4 by the program preset automatically according to working conditions change, and when system needs flow large, the control electric current that Proportional valve 1.4 is given is large, otherwise then given electric current is little.
For above-mentioned power system, be optimizational function, present invention also offers oil pipe coil system, cable winch system and radiation system.
Oil pipe coil system is mainly used to winding or decontrols high pressure oil pipeline and low pressure oil pipeline, as shown in Figure 1, it comprises the first solenoid directional control valve 11, high-pressure oil pipe pipe crimping motor 6.1, high-pressure oil pipe reel 8.1 and high-pressure rotary joint 7.1 and low pressure fuel pipe pipe crimping motor 6.2, low pressure fuel pipe reel 8.2 and low pressure swivel coupling 7.2.First solenoid directional control valve 11 for Median Function be the solenoid directional control valve of " Y " type.The filler opening of the first solenoid directional control valve 11 is connected with the filler opening T1 of filter 3 with the oil outlet P of Electro-hydraulic Proportional Displacement variable displacement pump 1 respectively with return opening; Hydraulic fluid port a2 with b2 of the first solenoid directional control valve 11 is connected with B2, B3 with hydraulic fluid port A2, A3 of high low pressure oil pipe pipe crimping motor 6.1,6.2 respectively.
Cable winch system comprises and has that Median Function is second solenoid directional control valve 10 of " Y " type, winch motor 12.1, shuttle valve 12.2, equilibrium valve 12.3 and break 12.4.The filler opening of the second solenoid directional control valve 10 is connected with the filler opening T1 of filter 3 with the oil outlet P of Electro-hydraulic Proportional Displacement variable displacement pump 1 respectively with return opening, the hydraulic fluid port a4 of the second solenoid directional control valve 10 is connected with winch motor hydraulic fluid port A4, winch motor hydraulic fluid port B4 is connected through the hydraulic fluid port b4 of equilibrium valve 12.3 with the second solenoid directional control valve 10, shuttle valve 12.2 cross-over connection hydraulic fluid port a4, b4, pressure hydraulic fluid port connects break 12.4.Cable winch system is mainly used to the integrated package putting down or mention oil hydraulic motor 9 and water pump formation.
Radiation system comprises forced air cooler 2, and its filler opening is connected with the leakage hydraulic fluid port of Electro-hydraulic Proportional Displacement variable displacement pump 1, and oil outlet is connected with fuel tank 14.
Above-mentioned power system and three auxiliary system working procedure as follows:
Power system: circuit controls element adopts two-way plug-in valve structure, have that through-current capability is strong, good seal performance, the advantages such as compact structure, loop comprises two-way cartridge-type safety unloading valve 4 and two-way cartridge-type switch valve 5 two-part, and two valves are by main valve plug-in unit, cover plate, pilot valve three part composition.Two-way cartridge-type safety unloading valve 4 is in parallel with two-way cartridge-type switch valve 5, its filler opening communicates with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump, the oil outlet of two-way cartridge-type safety unloading valve 4 is by filter 3, the oil outlet of two-way cartridge-type hydraulic-controlled switch valve 5 leads to oil hydraulic motor A1 mouth through high-pressure rotary joint 7.1, and oil hydraulic motor B 1 mouthful passes through filter 3 through low pressure swivel coupling 7.2.When the equal power-off of 1DT, 2DT and 3DT, two-way cartridge-type safety unloading valve 4 plays unloading valve effect, power source carrys out oily direct oil sump tank, pump off-load, two-way cartridge-type hydraulic-controlled switch valve 5 is closed, forward and reverse all obstructed oil, now the in-line of oil hydraulic motor 9 is closed, and can prevent water pump backwater from causing motor to reverse; When 1DT, 3DT power-off, 2DT energising, in the pressure regulation cover plate 4.2 of two-way cartridge-type safety unloading valve 4, the second pressure regulator valve 4.2.2 works, and can set major loop safety pressure; When 1DT, 2DT power-off, 3DT energising, in the pressure regulation cover plate 4.2 of two-way cartridge-type safety unloading valve 4, the first pressure regulator valve 4.2.1 works, and can set the safety pressure of oil pipe coil system loop and cable winch system circuit; When 1DT, 2DT energising, 3DT power-off, two-way cartridge-type hydraulic-controlled switch valve 5 is opened, two-way cartridge-type safety unloading valve 4 makees safety valve and uses, power source carrys out the filler opening A1 of oily logical oil hydraulic motor 9, the return opening B1 of oil hydraulic motor 9 leads to fuel tank 14, rotating speed passing ratio valve 1.4 controlled variable cylinder 1.3 Moderator Variable pump 1.1 discharge capacity of oil hydraulic motor 9, thus control pump rotary speed, regulate pump operating condition.
Oil pipe coil system: this system comprises high-pressure oil pipe pipe crimping and low pressure fuel pipe pipe crimping two branch roads, these two branch roads become parallel relationship, control by the first solenoid directional control valve 11, the oil inlet and oil return mouth of the first solenoid directional control valve 11 communicates with power source P mouth, T mouth respectively, and actuator port a2, b2 of the first solenoid directional control valve 11 communicate with oil inlet and outlet A2, A3 and B2, B3 of high low pressure oil pipe pipe crimping motor 6.1,6.2 respectively.When 6DT, 7DT power-off, meta " Y " the type function of the first solenoid directional control valve 11, can realize high low pressure oil pipe pipe crimping motor and high low pressure oil pipe reel and float, under external force can folding and unfolding high low pressure oil pipe; When 6DT, 7DT be energized respectively, 3DT energising time, oil pipe coil system folding and unfolding oil pipe speed by Proportional valve 1.4 controlled variable cylinder 1.3 by Moderator Variable pump 1.1 discharge capacity realize control.
Cable winch system, this system mainly comprises the second solenoid directional control valve 10 and winch 12 forms.When the equal power-off of 4DT, 5DT, because the second solenoid directional control valve 10 meta is " Y " type function, winch oil inlet and outlet and oil return are led to, and oil pressure is zero, and winch is braked under the effect of break 12.4, locks outer load; When 4DT, 5DT be energized respectively, 3DT energising time, because of shuttle valve 12.2 cross-over connection winch motor 12.1 hydraulic fluid port A4, B4, therefore high pressure oil can be selected to lead to break 12.4, take-off the brake, realize outer load folding and unfolding, the rotating speed of winch 12 is realized controlling by Moderator Variable pump 1.1 discharge capacity by Proportional valve 1.4 controlled variable cylinder 1.3.
Radiation system, this system circuit primary component is forced air cooler 2, its filler opening and oil hydraulic pump leak hydraulic fluid port and communicate, oil outlet communicates with fuel tank, rely on the flowing of Electro-hydraulic Proportional Displacement variable displacement pump 1 internal leakage fluid, the heat produced because of various loss in pump is taken away to be fallen by heat sink radiates, the thermal equilibrium of maintenance medium pressing system.Simultaneously due to the active heat removal of radiator, also can reduce the volume of fuel tank self, make whole hydraulic system compacter.
Claims (8)
1. the power system of a long-range nurse tanker water pump, it is characterized in that, this power system comprises motor, by this engine-driven Electro-hydraulic Proportional Displacement variable displacement pump, to be connected and safety unloading valve parallel with one another and switch valve, to be connected and to drive the oil hydraulic motor of water pump, filter, fuel tank and hydraulic oil pipeline with the outlet of described switch valve with the oil outlet of this Electro-hydraulic Proportional Displacement variable displacement pump; The oil outlet of described safety unloading valve is connected with the filler opening of described filter, and the oil outlet of described switch valve is connected with the filler opening of described filter through described oil hydraulic motor and pipeline, and the oil outlet of described filter leads to fuel tank; When described switch valve cuts out and safety unloading valve plays unloading valve effect, the in-line of oil hydraulic motor is closed; When described switch valve is opened and described safety unloading valve plays safety valve effect, the rotating speed of described oil hydraulic motor finally controls pump rotary speed by regulating Electro-hydraulic Proportional Displacement variable pump delivery, and then regulates pump operating condition.
2. power system according to claim 1, is characterized in that, described Electro-hydraulic Proportional Displacement variable displacement pump comprises base pump, position transducer, variable cylinder and Proportional valve.
3. power system according to claim 1, is characterized in that, described safety unloading valve is the two-way cartridge-type safety unloading valve be made up of the first pilot valve, pressure regulation cover plate and pressure plug-in unit.
4. power system according to claim 1, is characterized in that, described switch valve is the two-way cartridge-type hydraulic-controlled switch valve be made up of the second pilot valve, shuttle valve cover plate and direction plug-in unit.
5. a long-range nurse tanker, is characterized in that, the power system in Claims 1-4 described in any one is housed in this long-range nurse tanker.
6. long-range nurse tanker according to claim 5, is characterized in that, this long-range nurse tanker also comprises the oil pipe coil system that the high pressure oil pipeline of the oil hydraulic motor in power system and low pressure oil pipeline are wound up or decontroled; This oil pipe coil system comprises the first solenoid directional control valve, high-pressure oil pipe pipe crimping motor, high-pressure oil pipe reel, high-pressure rotary joint and low pressure fuel pipe pipe crimping motor, low pressure fuel pipe reel and low pressure swivel coupling; The in-line that described high-pressure oil pipe reel is arranged on described oil hydraulic motor coordinates with described high-pressure rotary joint and reels or decontrol described high pressure oil pipeline; The drain line that described low pressure fuel pipe reel is arranged on described oil hydraulic motor coordinates with described low pressure swivel coupling and reels or decontrol described low pressure oil pipeline; To be Median Function be the solenoid directional control valve of " Y " type to described first solenoid directional control valve and the filler opening of this first solenoid directional control valve is connected with the filler opening of filter with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump respectively with return opening; Filler opening and the oil outlet of the actuator port of described first solenoid directional control valve and described high-pressure oil pipe pipe crimping motor and described low pressure fuel pipe pipe crimping motor are connected; Described high pressure oil pipe crimping motor and low pressure oil pipe crimping motor are led in hydraulic oil parallel connection through described first solenoid directional control valve, and return described fuel tank from the hydraulic oil parallel connection that described high pressure oil pipe crimping motor and described low pressure oil pipe crimping motor are discharged through described first solenoid directional control valve; The speed of described oil pipe coil system folding and unfolding oil pipe is undertaken by regulating described Electro-hydraulic Proportional Displacement variable pump delivery.
7. long-range nurse tanker according to claim 5, it is characterized in that, described long-range nurse tanker also comprises the cable winch system for putting down or mention oil hydraulic motor and water pump, and this cable winch system comprises and has that Median Function is second solenoid directional control valve of " Y " type, winch motor, shuttle valve, equilibrium valve and break; The filler opening of described second solenoid directional control valve is connected with the filler opening of filter with the oil outlet of Electro-hydraulic Proportional Displacement variable displacement pump respectively with return opening, first actuator port of the second solenoid directional control valve is connected with the forward filler opening of winch motor, the forward oil outlet of winch motor is connected with the second actuator port of the second solenoid directional control valve through equilibrium valve, first actuator port of shuttle valve cross-over connection second solenoid directional control valve and the second actuator port, pressure hydraulic fluid port connects break; When described second solenoid directional control valve is meta, winch oil inlet and outlet and oil return are led to, and oil pressure is zero, and winch is braked under the effect of break, locks outer load; When described second solenoid directional control valve is in working position and described safety unloading valve plays safety valve effect, oil hydraulic motor and water pump described in outer load folding and unfolding can be carried out; The rotating speed of winch is undertaken by the described Electro-hydraulic Proportional Displacement variable displacement pump of regulation and control.
8. long-range nurse tanker according to claim 5, it is characterized in that, described long-range nurse tanker also comprises radiation system, described radiation system comprises forced air cooler, the filler opening of this forced air cooler is connected with the leakage hydraulic fluid port of described Electro-hydraulic Proportional Displacement variable displacement pump, and the oil outlet of described forced air cooler is connected with described fuel tank.
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| CN201210096490.0A CN102635539B (en) | 2012-04-05 | 2012-04-05 | The power system of long-range nurse tanker water pump and the long-range nurse tanker of this system is housed |
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| CN201210096490.0A CN102635539B (en) | 2012-04-05 | 2012-04-05 | The power system of long-range nurse tanker water pump and the long-range nurse tanker of this system is housed |
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| CN102913412A (en) * | 2012-10-08 | 2013-02-06 | 潍坊优力动力配套有限公司 | Hydraulic water pumping unit |
| CN102913514A (en) * | 2012-10-08 | 2013-02-06 | 潍坊优力动力配套有限公司 | Releasing and withdrawing mechanism for hydraulic water pump |
| CN103939401A (en) * | 2014-04-09 | 2014-07-23 | 合肥巨澜安全技术有限责任公司 | Floating type remote water taking device hydraulic system |
| CN105422522A (en) * | 2016-01-25 | 2016-03-23 | 徐州徐工挖掘机械有限公司 | Pump control hydraulic drive device and method |
| CN106439176B (en) * | 2016-09-12 | 2018-12-14 | 河海大学 | The quick valve closer of long range water supply line accident and method |
| CN110997078A (en) * | 2017-06-14 | 2020-04-10 | 原子能股份公司 | Mobile fire extinguishing system capable of generating foam through compression method |
| CN112539166B (en) * | 2020-11-06 | 2022-07-19 | 江苏徐工工程机械研究院有限公司 | Hydraulic control system and dredging equipment |
| CN113357217B (en) * | 2021-08-10 | 2021-11-02 | 徐州徐工环境技术有限公司 | Multifunctional waterway driving system suitable for tunnel cleaning working condition |
| CN113928981B (en) * | 2021-09-28 | 2023-05-23 | 中联重科股份有限公司 | Engineering vehicle and hydraulic driving system thereof |
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