CN205740338U - A kind of loading system of urea for vehicle solution - Google Patents
A kind of loading system of urea for vehicle solution Download PDFInfo
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- CN205740338U CN205740338U CN201620424040.3U CN201620424040U CN205740338U CN 205740338 U CN205740338 U CN 205740338U CN 201620424040 U CN201620424040 U CN 201620424040U CN 205740338 U CN205740338 U CN 205740338U
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Abstract
This utility model patent relates to a kind of loading system adding urea for vehicle solution for diesel car.This system includes reserving liquid tank, power supply and computer controller, it is characterized in that, also includes filter, dispenser pump, check-valves, sensor, mass flowmenter, electromagnetic valve and self-sealing filling gun.This product is specifically designed for the filling of urea for vehicle solution and researches and develops, and uses Coriolis mass flowmeter as the measuring element of urea liquid charging machine.
Description
Technical field
This utility model patent relates to a kind of loading system adding urea for vehicle solution for diesel car, and it is applicable to all types of gas station is that motor vehicles (predominantly heavy truck and passenger vehicle) add urea for vehicle solution.
Background technology
Urea for vehicle solution is the essential product that heavy-duty diesel vehicle reaches state IV discharge standard.The diesel vehicle such as heavy truck, passenger vehicle state to be reached IV discharge standard, will install applicable SCR catalytic reactor (SCR technology is to be best suitable for the green technology of NOx pollutant in the control heavy-duty diesel oil vehicle exhaust of China's national situation) in vent gas treatment.In SCR catalytic reactor, with the NOx started in aerofluxus under the high temperature conditions, there is reduction reaction in urea liquid, generates nitrogen and water, efficiently reduces the NOx content in vehicle exhaust, reduces the air pollution caused by NOx.
State IV Diesel engine is the 4%～6% of diesel-fuel consumption to the consumption of urea for vehicle solution.At present, urea for vehicle solution supply network is progressively set up in the whole nation by gas station；Urea for vehicle solution sells the parcel barrelling of mainly 10～25L, and dosing method is artificial filling；This dosing method has two shortcomings: one is that filling efficiency is low, and artificial filling is wasted time and energy very inconvenient；Two is to be dropped after parcel barrelling has filled, and causes secondary environmental pollution, produces solid waste for eliminating air environmental pollution, and processing these solid waste needs again to consume environmental resource.
The method eliminating disadvantage mentioned above uses Large Copacity urea for vehicle solution reservoir and urea for vehicle solution special inflating machine exactly.But owing to urea liquid has alkalescence, to common metal and part are nonmetal, there is corrosivity, and the internal flow passage components of conventional gasoline machine mostly are the metal materials such as cast iron, cast aluminium, copper, incompatible with urea liquid；Urea for vehicle solution purity degree is required high by SCR catalytic reactor, if diesel vehicle uses underproof urea liquid, SCR catalytic reactor can be caused to lose efficacy, and increases SCR catalytic reactor replacement cost.
The most it is not suitable for the charging machine of urea liquid, limits the Rapid Popularization of gas station's urea for vehicle solution.
In addition, conventional gasoline machine major part uses volumetric flowmeter as measuring element, such as piston-type flow-meter, oval gear flowmeter meter, this effusion meter mechanism is complicated, moving component is many, flow resistance is big, there is mechanical wear and causes degradation problem under the accuracy of measuring, uses time the longest maintenance load the biggest.Volumetric flowmeter is used for urea solution metering, and after a long time use, inside can form urea powder shape object, accelerates effusion meter abrasion, affects measuring accuracy.
Loss of Oil Products at Gas Station is into and out of closing unit's disunity, oil-feed use groove tank car weigh employings " kilogram " statistics, sell oil use fuel charger use " liter " measure, for make oil product into and out of quantity balance, gas station needs periodic detection oil density, unit " is risen " and is converted into mass unit " kilogram ".And oil product autologous density influenced by ambient temperature can change, in turn result in statistical data and produce error.This error is relevant with metering method, is objective reality.
Chinese utility model patent publication number " 205013102U " discloses a kind of urea liquid filling apparatus, it includes gland, liquid feeding mouth, magnet steel and bonnet, wherein, the center of described liquid feeding mouth is provided with filling opening, the center correspondence filling opening of described gland arranges through hole, and described gland is arranged at the top of described liquid feeding mouth by buckle structure, described magnet steel is embedded in described liquid feeding mouth, and described bonnet is connected on described liquid feeding mouth by sweat soldering.Several it are evenly equipped with for the air discharge duct of aerofluxus during filling urea liquid on the inwall of described filling opening.The exhausting problem of urea tank when above-mentioned urea liquid filling apparatus has considered not only filling urea liquid；And simple in construction, to be easy to manufacture molding, low cost, dismounting convenient.Technique scheme is disclosed that a kind of concrete special filling apparatus, but is not related to the content in terms of automobile-used filling urea liquid.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency present in prior art, and provide a kind of use Coriolis mass flowmeter as the measuring element of urea liquid charging machine, and the loading system of all compatible with the urea for vehicle solution urea for vehicle solution of the parts contacted with urea liquid.
This utility model purpose is achieved through the following technical solutions:
A kind of loading system of urea for vehicle solution, including reserving liquid tank, power supply and computer controller, it is characterized in that, also include filter, dispenser pump, check-valves, sensor, mass flowmenter, electromagnetic valve and self-sealing filling gun, in described reserving liquid tank, urea liquid flows through filter, dispenser pump, check-valves, mass flowmenter, electromagnetic valve and self-sealing filling gun successively, described computer controller obtains the data of mass flowmenter by sensor, described computer controller controls to connect electromagnetic valve, and described power supply is electrically connected computer controller and dispenser pump.Wherein, filter, for the impurity in filter urea solution；Dispenser pump, provides power for liquid flowing；Check-valves, flows backwards for liquid in preventing pipeline；Mass flowmenter, sends computer controller to for the flow signal recorded by sensor；Sensor, for detecting flowing liquid flow；Electromagnetic valve, for cutting out in time at the end of quantitative filling, blocks liquid flowing；Self-sealing filling gun, for being filled urea liquid by liquid container.
As preferably, also including motor and pressure switch, power supply is operated by driven by motor dispenser pump, equipped with pressure switch inside described dispenser pump.
As preferably, also include limit switch, mention self-sealing filling gun, trigger online computer controller after limit switch.
As preferably, also include expansion interface, display floater and operation keyboard, all electrically connect with computer controller.
As preferably, described dispenser pump is membrane pump, and pump case material is polypropylene, and pump inner septum is politef；Or dispenser pump is vane pump, pump case and impeller material use 304 rustless steels.
As preferably, described urea liquid flows through successively and uses sheet-metal duct to connect between each parts, and connected mode is that card collar pressure type connects and/or threaded.
As preferably, described sensor is phase-sensitive resonant transducer based on coriolis force effect.
As preferably, described mass flowmenter is a kind of Coriolis mass flowmeter.
As preferably, described electromagnetic valve is double-flow-rate electromagnetic valve, is made up of master solenoid, secondary electromagnetic valve, and master solenoid is big flow solenoid valve, and secondary valve is low-flow electromagnetic valve.
Compared with prior art, this product compared with the existing technology has the following advantages and effect:
This utility model is specific to the filling of urea for vehicle solution and researches and develops.Its all parts contacted with urea liquid is all compatible with urea for vehicle solution, meets GB29518-2013 " Diesel engine NOx reducing agent aqueous solution of urea (AUS32) " annex J.2.1.2 requirement, will not produce urea liquid and pollute.Dispenser pump such as selects carbamide dedicated diaphragm pump, then pump case material is polypropylene (additive-free), and pump inner septum is politef (additive-free)；Dispenser pump such as selects vane pump or centrifugal pump, then pump case and impeller material use 304 rustless steels；Connected pipeline uses 304 stainless steel tubes, and mass flowmenter uses 316L rustless steel, and double-flow-rate electromagnetic valve valve body uses 304 rustless steels, liquid-sighting glass uses 304 rustless steels, flexible hose for loading uses crosslinked polyethylene, and Pull breaking ualve uses 304 rustless steels, self-sealing filling gun to use 304 rustless steels.
What this utility model was creative uses Coriolis mass flowmeter as the measuring element of urea liquid charging machine, and computer control software is carried out reprogramming, to adapt to mass flow sensor and transducer signal, on the premise of guaranteeing quantification stability degree, both realized adding amount to show with mass unit " kilogram ", also improve the accuracy of measuring extremely ± 0.3%, the relatively conventional gasoline machine accuracy of measuring ± 0.5%, improve 0.2%.
This utility model directly uses mass flow measurement methods, and urea for vehicle solution adding amount is measured statistics, i.e. adding amount measurement unit is kilogram.Volume unit's (liter) can also be converted to by secondary meter according to client's needs.
This utility model uses mass metrology mode, has two advantages: one is that current urea for vehicle solution produces in proportioning, dispatches from the factory and all use time gas station sells mass unit to carry on trade clearing, and measurement unit is unified, it is simple to settle accounts；Two is with development in science and technology, the metering precision of mass flowmenter and quantification stability reach higher level, fully meet the requirement of international trade handing-over measurement instrument precision ± 0.5%, and inside mass flowmenter, there is no mechanical movement part, when fluid passes through, wearing and tearing little, drag losses is little, there is the advantages such as low, the length in service life of maintenance cost, and after mass flowmenter production domesticization, manufacturing cost is also greatly reduced.
This utility model has quantitative filling, non-quantitation filling automatic metering function, has general mode filling and card-machine interaction pattern filled function, facilitates client to use；And according to customer requirement spare interface, it is simple to diffusion IC card system, data management system, Third-party payment (wechat Alipay etc.) and printing function.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, accompanying drawing in describing below apparently is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the system principle schematic diagram of the present embodiment.
Fig. 2 is Coriolis mass flowmeter fundamental diagram in the present embodiment.
Label declaration: reserving liquid tank 1, power supply 2, computer controller 3, filter 4, dispenser pump 5, check-valves 6, sensor 7, mass flowmenter 8, electromagnetic valve 9, self-sealing filling gun 10, motor 11, pressure switch 12, limit switch 13, expansion interface 14, display floater 15, operation keyboard 16, switchgear house 17, rosette 18, by liquid container 19.
Detailed description of the invention
Illustrate that this utility model, the following example are merely to illustrate the technical solution of the utility model below in conjunction with specific embodiment, do not limit protection domain of the present utility model.
Embodiment:
As shown in Figure 1, product at the present embodiment includes reserving liquid tank 1, power supply 2 and computer controller 3, also include filter 4, dispenser pump 5, check-valves 6, sensor 7, mass flowmenter 8, electromagnetic valve 9 and self-sealing filling gun 10, in reserving liquid tank 1, urea liquid flows through filter 4 successively, dispenser pump 5, check-valves 6, mass flowmenter 8, electromagnetic valve 9 and self-sealing filling gun 10, computer controller 3 obtains the data of mass flowmenter 8 by sensor 7, computer controller 3 controls to connect electromagnetic valve 9, power supply 2 is electrically connected computer controller 3 and dispenser pump 5, switchgear house 17 is powered to power supply 2 by rosette 18.Wherein, filter 4, for the impurity in filter urea solution；Dispenser pump 5, provides power for liquid flowing；Check-valves 6, flows backwards for liquid in preventing pipeline；Mass flowmenter 8, for sending the flow signal that sensor 7 records to computer controller 3；Sensor 7, for detecting flowing liquid flow；Electromagnetic valve 9, for cutting out in time at the end of quantitative filling, blocks liquid flowing；Self-sealing filling gun 10, for being filled urea liquid by liquid container 1919.
The present embodiment also includes motor 11 and pressure switch 12; power supply 2 drives dispenser pump 5 to operate by motor 11; dispenser pump 5 is internal equipped with pressure switch 12; in dispenser pump 5, urea liquid boosts to certain pressure (0.15～0.2MPa), and dispenser pump 5 is internal equipped with superpressure overflow valve and overpressure protection autostop pressure switch 12.
The present embodiment also includes limit switch 13, mentions self-sealing filling gun 10, triggers online computer controller 3 after limit switch 13, computer controller 3.
The present embodiment also includes expansion interface 14, display floater 15 and operation keyboard 16, all electrically connects with computer controller 3.Showing adding amount, the filling amount of money and unit price on display floater 15, display interface is elegant in appearance, and numeral is clear, metallic operation keyboard 16 light, durable.Expansion interface 14 is IC expansion interface 14, and charging machine needs to use IC-card sheet just can fill, and facilitates trade management, it is simple to diffusion IC card system, data management system, Third-party payment (wechat Alipay etc.) and printing function.
The dispenser pump 5 of the present embodiment is membrane pump, and pump case material is polypropylene, and pump inner septum is politef；Or dispenser pump 5 is vane pump, pump case and impeller material use 304 rustless steels.Dispenser pump 5 such as selects carbamide dedicated diaphragm pump, then pump case material is polypropylene (additive-free), and pump inner septum is politef (additive-free)；Dispenser pump 5 such as selects vane pump or centrifugal pump, then pump case and impeller material use 304 rustless steels；Connected pipeline uses 304 stainless steel tubes, mass flowmenter 8 to use 316L rustless steel, double-flow-rate electromagnetic valve 9 valve body to use 304 rustless steels, liquid-sighting glass uses 304 rustless steels, flexible hose for loading uses crosslinked polyethylene, and Pull breaking ualve uses 304 rustless steels, self-sealing filling gun 10 to use 304 rustless steels.
The urea liquid of the present embodiment flows through successively and uses sheet-metal duct to connect between each parts, and connected mode is that card collar pressure type connects and/or threaded, this connected mode is easy for installation and maintenance.
The sensor 7 of the present embodiment is phase-sensitive resonant transducer 7 based on coriolis force effect.
As in figure 2 it is shown, the mass flowmenter 8 of the present embodiment is a kind of Coriolis mass flowmeter 8.Concrete employing CNG-15 type mass flowmenter 8 is as the detecting element of urea liquid filling flow.CNG-15 type mass flowmenter 8 is mainly made up of flow transducer 7, transmitter.Flow transducer 7 is a kind of phase-sensitive resonant transducer 7 based on coriolis force effect.This sensor 7 is made up of vibrating tube, signal detector, concussion driver, supporting construction and housing.Flow transmitter is the electronic system with micro-process as core.It is used for providing driving force to sensor 7, and the signal of sensor 7 is converted into mass flow rate signal and other parameter signals, has simultaneously, according to temperature parameter, mass flow measurement is compensated function.
CNG-15 type mass flowmenter 8 manufactures based on coriolis force principle.Under driving the function of current, measuring, by giving, the frequency of vibration that pipe applying is certain, the magnetic field force in pipe will make two measurement pipes produce corresponding vibration with coriolis force.When fluid flows through two horizontal survey pipes, owing to will be made measurement pipe that small bending (phase contrast) to occur by corioliseffect, and the degree of crook of pipeline is the most relevant with the mass flow of the fluid flowed through.By detecting the degree of crook of tube wall, can directly measure mass flow.Density and the temperature of internal flow can also be detected, when needs fluid volume flow, be convertible into volume flow by secondary meter.
The electromagnetic valve 9 of the present embodiment is double-flow-rate electromagnetic valve 9, master solenoid (main valve), secondary electromagnetic valve form (secondary valve), and master solenoid is big flow solenoid valve, and secondary valve is low-flow electromagnetic valve.Double-flow-rate electromagnetic valve 9 can improve preset adding amount accuracy, and master solenoid is big caliber electromagnetic valve, and secondary valve is minor-caliber electromagnetic valve.Under the conditions of preset adding amount during filling, initial stage fluid passes through main valve, it is achieved quickly fill, when actual adding amount is close to preset adding amount, closing main valve, fluid is by secondary valve, realize low discharge the most precisely to fill, when actual adding amount is consistent with preset adding amount, turn off secondary valve.So filling can reduce the adding amount error that closing valve time causes.
Operation principle is described below:
Operator mention self-sealing filling gun 10 from filling gun platform; trigger the limit switch 13 on filling gun platform; motor 11 drives dispenser pump 5 to operate; urea liquid flows out from reserving liquid tank 1; after filter 4 filtration machinery impurity; being inhaled into dispenser pump 5, in dispenser pump 5, urea liquid boosts to certain pressure (0.15～0.2MPa), and dispenser pump 5 is internal equipped with superpressure overflow valve and overpressure protection autostop pressure switch 12.
Self-sealing filling gun 10 is inserted by after liquid container 19, on the operation keyboard 16 of instrument control box, after selecting quantitative filling (not electing non-quantitation filling as), open self-sealing filling gun 10 valve pull rod, urea liquid flows out from dispenser pump 5 outlet, flow through check-valves 6, mass flowmenter 8, double-flow-rate electromagnetic valve 9, liquid-sighting glass, flexible hose for loading, Pull breaking ualve, finally by self-sealing filling gun 10, inject by liquid container 19.
Urea liquid is when flowing through mass flowmenter 8, flow signal is sent to computer controller 3 by the sensor 7 of effusion meter, 3 flow signals of computer controller are converted into mass flow (or volume flow), and flow to adding amount display screen, in real time display urea liquid filling cumulant.
When the accumulated filling throughout that adding amount display screen shows is close to preset adding amount, computer controller 3 can first close big flow solenoid valve 9, when accumulated filling throughout to be shown is consistent with preset adding amount, computer controller 3 turns off low-flow electromagnetic valve 9, stops filling solution to by liquid container 19.Now, packing up self-sealing filling gun 10 and filling gun is hung back gun platform, dispenser pump 5 shuts down, and reads adding amount and the filling amount of money from adding amount display floater 15, confirms consistent with preset adding amount and the filling amount of money, and filling process terminates.
When by liquid container 19 full liquid, self-sealing filling gun 10 can be automatically switched off filling gun liquid valve door, stops filling to by liquid container 19；During filling, operator also can the liquid valve door pull bar of manual-lock self-sealing filling gun 10, stop filling to by liquid container 19；Then, packing up self-sealing filling gun 10 and filling gun is hung back gun platform, dispenser pump 5 shuts down, and reads adding amount and the filling amount of money from adding amount display floater 15, and filling process terminates.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different.All equivalences done according to structure, feature and the principle described in this utility model inventional idea or simple change, be all included in the protection domain of this utility model patent.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (9)
1. the loading system of a urea for vehicle solution, including reserving liquid tank, power supply and computer controller, it is characterized in that, also include filter, dispenser pump, check-valves, sensor, mass flowmenter, electromagnetic valve and self-sealing filling gun, in described reserving liquid tank, urea liquid flows through filter, dispenser pump, check-valves, mass flowmenter, electromagnetic valve and self-sealing filling gun successively, described computer controller obtains the data of mass flowmenter by sensor, described computer controller controls to connect electromagnetic valve, and described power supply is electrically connected computer controller and dispenser pump.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: also including motor and pressure switch, power supply is operated by driven by motor dispenser pump, equipped with pressure switch inside described dispenser pump.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: also include limit switch, mention self-sealing filling gun, trigger online computer controller after limit switch.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: also include expansion interface, display floater and operation keyboard, all electrically connect with computer controller.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: described dispenser pump is membrane pump, and pump case material is polypropylene, and pump inner septum is politef；Or dispenser pump is vane pump, pump case and impeller material use 304 rustless steels.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: described urea liquid flows through successively and uses sheet-metal duct to connect between each parts, and connected mode is that card collar pressure type connects and/or threaded.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: described sensor is phase-sensitive resonant transducer based on coriolis force effect.
8. according to the loading system of the urea for vehicle solution described in claim 1 or 7, it is characterised in that: described mass flowmenter is a kind of Coriolis mass flowmeter.
The loading system of urea for vehicle solution the most according to claim 1, it is characterised in that: described electromagnetic valve is double-flow-rate electromagnetic valve, is made up of master solenoid, secondary electromagnetic valve, and master solenoid is big flow solenoid valve, and secondary valve is low-flow electromagnetic valve.
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| CN201620424040.3U CN205740338U (en) | 2016-05-11 | 2016-05-11 | A kind of loading system of urea for vehicle solution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858576A (en) * | 2016-05-11 | 2016-08-17 | 浙江朗庆智能科技有限公司 | Filling system for automotive urea solution and control method |
| CN106802619A (en) * | 2017-03-20 | 2017-06-06 | 成都乾威科技有限公司 | A kind of urea for vehicle loading system |
-
2016
- 2016-05-11 CN CN201620424040.3U patent/CN205740338U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858576A (en) * | 2016-05-11 | 2016-08-17 | 浙江朗庆智能科技有限公司 | Filling system for automotive urea solution and control method |
| CN106802619A (en) * | 2017-03-20 | 2017-06-06 | 成都乾威科技有限公司 | A kind of urea for vehicle loading system |
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