CN102003314B - Three-post plastic-pipe pressure-resistance combined oil tank - Google Patents
Three-post plastic-pipe pressure-resistance combined oil tank Download PDFInfo
- Publication number
- CN102003314B CN102003314B CN2010105469370A CN201010546937A CN102003314B CN 102003314 B CN102003314 B CN 102003314B CN 2010105469370 A CN2010105469370 A CN 2010105469370A CN 201010546937 A CN201010546937 A CN 201010546937A CN 102003314 B CN102003314 B CN 102003314B
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- carbamide reducing
- pressure
- withstand voltage
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to a three-post plastic-pipe pressure-resistance combined oil tank, which is characterized in that: a fuel oil tank body is arranged on one side of a combined oil tank, urea reducer pressure-resistance pipe bodies are arranged in the middle, and an electrical control box is arranged on the other side; a seaming end cap batten is arranged on one side of the electrical control box; each urea reducer pressure-resistance pipe body is provided with a urea reducer box cover and is communicated with a compressed air power input pipe and a urea reducer output pipe; a liquid level sensor is fixed on each urea reducer pressure-resistance pipe body, a urea reducer tap valve is arranged at bottom of each urea reducer pressure-resistance pipe body, upper and lower pipe plugs are provided with elastic supporting glue piles, and plastic pipe clips are fixedly connected with the box body; each urea reducer pressure-resistance pipe body is fused with the upper and lower pipe plugs by a fusion pair pipe to form a post, and three urea reducer pressure-resistance pipe bodies having the same structure are connected into a whole by two groups of fusion region connectors; and after the fusion forming, a 30-minute hammering seal test is performed under a constant pressure of 0.3 to 0.7Mpa. With compact design, the oil tank helps to realize the elegant design of a vehicle, reduces connectors, simplifies vehicle configuration, reduces vehicle weight, and can meet national above 4 standard class rate (SCR) standard requirements and reduce system cost.
Description
Technical field
The present invention relates to the pressure-withstanding combined oil tank of three post plastic tubes, this technology is applied to the reprocessing industry of vehicle exhaust.
Background technique
In the coming years, the car manufactures, particularly US and European in the whole world will forcibly be implemented some severeer specifications about the emission compliance aspect of automobile nitrogen oxide NOx and particulate PM.Under the driving of Abgasgesetz, external automobile-used heavy-duty diesel engine just constantly carries out technology upgrading and improvement on the one hand, on the other hand, select appropriate post-processing technology strategy and equipment, for example, SCR (Selective Catalytic Reduction) catalyzed conversion reduction technique, DPF(Diesel Particulate Filter) particle trap, DOC(Diesel Oxidation Catalyst) oxidation catalyst etc.
The essence of SCR technology is to utilize urea at high temperature to decomposite NH
3, as the NH of reducing agent
3With the NO in the engine exhaust
xUnder the comprehensive function of catalyzer and temperature, react, generate nontoxic N under the desirable operating mode
2And H
2O, thus reach the purpose of purification.SCR has lot of advantages, for example, can have 50～85% NO in the scope of the delivery temperature 250～550oC of diesel-oil vehicle
xRemove efficient, and can effectively reduce the emission level of PM; SCR can easily satisfy Europe 4 and Europe 5 levels, also has the potentiality that reach Europe 6 levels; The SCR catalyzer does not contain precious metal, and is more relatively low than cost; SCR is to the quality of fuel oil for vehicles, and particularly Sulpher content is insensitive.Based on above analysis, the SCR post-processing technology is vehicle condition and the fuel oil for vehicles situation of suitable China also.
If apply the vehicle-mounted SCR post-processing technology in China, must resolve the technological difficulties such as atomized spray, SCR catalyzer conversion efficiency, ammonia amount of leakage of dosage, the carbamide reducing agent of carbamide reducing agent supply, carbamide reducing agent.
For the vehicle of estimating to realize state's 4 dischargings, its motor has been finished the optimization in the machine, and the NOX eliminating rate can satisfy state's 4 emission standards 35 ~ 40%, and the NOX eliminating rate can satisfy state's 5 emission standards 65 ~ 70%.Only need to connect upper SCR after-treatment device in the imagination and just can be used as state's 4 0vehicle marketings, the problem of in fact facing is far above this; Adopt the SCR after-treatment device of a whole set of import, cost up to 12000 ~ 15000 yuan/cover, wherein, urea-spray and control section just account for 2500 ~ 4000 yuan, and in case damage, can not guarantee to keep in good repair, must integral replacing, expense user is difficult to bear.
SCR system to mark offshore company, find it all is that concept with ' unit or module ' designs, for example, batching unit and control unit (DCU and ECU), namely relevant signal measurement, feedback, control and actuator are integrated, be conducive to layout and installation on car load.But, these inlet units expensive.
Otherwise, if do not adopt DCU and the ECU unit module of external import, and the position such as the operator cabin that the unit module of needed each function of SCR system or component are separately fixed at truck and vehicle frame, not only take up room, and the layout of pipeline can seem in disorder, in addition, separately fixedly the carriage of carbamide reducing agent case (steel or cast iron) just weigh more than the 18kg; The random layout of these unit modules or component is installed also the easily integrity problem of production part.
When selecting the mode of movement of carbamide reducing agent, can adopt pump power, this requires the reliability of micropump very high, 4000 hours fault-free of continuous operation for example, price is slightly high; Also can adopt source of high pressure air as power, for example, from the high-pressure air that the gas receiver of brake is carried, filter rear as power source.
After being input to carbamide reducing agent casing liquid level top for source of high pressure air, drive carbamide reducing agent to urea reducing agent nozzle as power again, adopt the hydrostatic column of corrosion resistant plate welding fabrication, cost is slightly high; And the square container of employing corrosion resistant plate welding fabrication, not only the weight of casing is large, and cost is high, and the welding difficulty is large.
Consider that carbamide reducing agent can be with most engineering plastics, for example polypropylene (PP) and polyethylene (PE) tubing have good compatibility, and, polypropylene (PP) and polyethylene (PE) tubing are lightweight, cost is low, ample supply and prompt delivery are easy to adopt the technique of standard to carry out blowing and hot melt is processed into needed shape and volume.
Patent searching is found, is not also had patent of the same type to declare.
Summary of the invention
The object of the present invention is to provide a kind of pressure-withstanding combined oil tank of three post plastic tubes, it makes a casing possess 3 kinds of functions, realize the design of compactness, the design for aesthetic that is conducive to vehicle, reduce the installation of link, simplify vehicle configuration, reduce weight, the above SCR standard-required of state's IV can be satisfied, the cost of system can be reduced again.
Technological scheme of the present invention is to realize like this, the pressure-withstanding combined oil tank of three post plastic tubes, the pressure-withstanding combined oil tank of three post plastic tubes is by accurate filter, accurate gas solenoid valve, accurate pressure maintaining valve, the aerodynamic force pipeline, control unit independently, the liquid precision solenoid valve, the carbamide reducing agent output tube, the withstand voltage body of three post carbamide reducing agents, the carbamide reducing agent case lid, fuel tank lock, the carbamide reducing agent liquid level sensor, the fuel oil casing, the carbamide reducing agent discharge valve, the fuel oil discharge valve, the turnover assembled casing, the carbamide reducing agent delivery pipe, power lead, the pressurized air supplying tube, the pressurized air output tube, temperature feedback signal line from catalytic converter, nitrogen oxide feedback signal line from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line T of operator cabin, the casing used for jointing soldering points, natural ventilation port, the electric control box ventilated port, seaming end cap buckle, electric control box, Steel Support, upper pipe plug, the welding pair tube, lower pipe plug, plastic pipe clip, yielding support Jiao Dui, two groups of welding area joints form; It is characterized in that: a side of Combined oil tank is the fuel oil casing, the withstand voltage body of intermediate arrangement carbamide reducing agent, and opposite side is electric control box; One side of electric control box is provided with seaming end cap buckle; The withstand voltage body of carbamide reducing agent is provided with the carbamide reducing agent case lid, communicate with compressed-air power supplying tube and carbamide reducing agent output tube, liquid level sensor is fixed on the withstand voltage body of carbamide reducing agent, the carbamide reducing agent discharge valve is provided with the bottom, be fixed with yielding support Jiao Dui on upper pipe plug and the lower pipe plug, plastic pipe clip is fixedly connected on the casing; Its length at the combination fuel tank is L
2The withstand voltage body of carbamide reducing agent is a post by welding pair tube and upper pipe plug and lower pipe plug thermal fusion welding, and three withstand voltage bodys of carbamide reducing agent that structure is identical are connected as a single entity by two groups of welding area joints; Under 0.3 ~ 0.7Mpa constant voltage, finish the sealing test of suppressing of 30min behind the fusion molding.
The material of described pressure-resistant plastic body is plastics, can be the PP polypropylene, also can adopt the PE polyethylene, or adopts the tubing of PP polypropylene and PE polyethylene and ethylene copolymers, and its external diameter is 110 ~ 220mm, wall thickness 8 ~ 26mm;
The internal chamber wall of described electric control box is provided with Steel Support and is fixedly connected with two accurate filters that filter respectively pressurized air and carbamide reducing agent that are fixed on both sides, the air mass flow of urea nozzle and urea box liquid level and accurate pressure maintaining valve and three liquid precision solenoid valves of pressure are transported in an accurate gas solenoid valve and two adjustings, control unit is fixed on the base plate, the compressed-air power supplying tube, the carbamide reducing agent output tube is coupled, in the turnover assembled casing carbamide reducing agent delivery pipe is arranged, power lead, the pressurized air supplying tube, the pressurized air output tube, temperature feedback signal line from catalytic converter, nitrogen oxide feedback signal line from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line of operator cabin, natural ventilation port, the electric control box ventilated port is located at bottom half, and its length is L
3
The length of described fuel tank and the withstand voltage body of carbamide reducing agent is L
1/ L
2=3 ~ 10; The withstand voltage body of carbamide reducing agent is that multilayer is arranged.
The withstand voltage body of described carbamide reducing agent (8) can be and adopts the withstand voltage body of combination that is threaded and makes between the plastic pipe, or adopts the withstand voltage body of combination that is threaded and makes between plastic pipe and the stainless steel metal pipe fitting.
Comprise the auxiliary urea reducing agent spraying system of air take high-pressure air as power source in the described Combined oil tank, the pressure of high-pressure air is 0.15 ~ 0.3Mpa.
Good effect of the present invention is, adopt conventional automotive oil tank to carry out the transformation of structure, make it to become three casees, be fuel tank, carbamide reducing agent case and ECU (Electrical Control Unit) case, three is case integrated, beautiful shape, be easy to install and maintain, solved installation and the Layout Problem of SCR system, more convenient realization is produced in enormous quantities, has very high reliability and use value.
Description of drawings
Fig. 1 is Combined oil tank plan view of the present invention.
Fig. 2 is Combined oil tank left view of the present invention.
Fig. 3 is the withstand voltage body schematic representation of carbamide reducing agent of the present invention.
Fig. 4 is Combined oil tank right elevation of the present invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples: shown in Fig. 1-4,Described for the Combined oil tank more than state's IV, casing is that the selection material is SUS304 or SUS441 corrosion resistant plate, its thickness is 1.2mm ~ 1.5mm, according to the manufacturing process of fuel tank of vehicle, the whole corrosion resistant plate that adopts is welded, and makes respectively fuel oil casing 12 first, reserve the space of the assembling withstand voltage body 8 of carbamide reducing agent and electric control box 20, wherein, fuel oil casing 12 need to be finished the sealing test of suppressing of 30min under the 0.08Mpa constant voltage, guarantees without leaking; And then make and the withstand voltage body 8 of assembling carbamide reducing agent, the straight tube material of the welding pair tube 23 that carbamide reducing agent is withstand voltage body 8 is required, can be from market purchasing, also can order to producer, spatial altitude size cutting according to fuel tank, the external diameter of recommending this tubing is 110 ~ 220mm, wall thickness 8 ~ 26mm, the net capacity size that the wall thickness of the external diameter removal pipe of pipe obtains is with the weight of the carbamide reducing agent that holds, fuel tank h2 calculates according to 600mm, when the external diameter of three post plastic tubes is 110mm, the 10mm thickness of deduction tube wall, this moment, the net volume of three post plastic tubes was about 10L, can fill carbamide reducing agent and be about 10kg, appropriately satisfied the consumption of 2 ~ 3 days carbamide reducing agents of SCR system of city bus; When the external diameter of three post plastic tubes is 220mm, the thickness of deduction tube wall, this moment, the net volume of three post plastic tubes was about 50L, can fill carbamide reducing agent and be about 50kg, satisfied the SCR system of long-distance medium and heavy car; When the external diameter of three post plastic tubes too hour, for example, when 100mm was following, not only the useful load of carbamide reducing agent was too little, even cancellation L
3The space, at L
2Arranged simultaneously withstand voltage body and control unit in the space, still have the problem of the space waste of fuel tank, otherwise when the external diameter of three post plastic tubes was too large, for example, during for 260mm, the useful load of carbamide reducing agent approximately can reach more than the 100kg this moment, considered L
3The space must keep, the hot melt processing of the casing of this three posts plastic tube will be adopted special-purpose equipment, install and the fixing trouble that also exists, the sectional dimension of more definite is fuel tank is usually below 700mm * 700mm, the spatial requirement of ' three posts ' is installed in the time of can't satisfying three post horizontally-arrangeds, judge that thus the diameter of the single-column in three posts can not be greater than 220mm; Recommend L
1/ L
2=3 ~ 10, work as L
1/ L
2=3 o'clock, as if make the L1 volume reducing, reduce at the fuel filling interval, but, present automotive oil tank all is the mode that main fuel tank adds drop tank, and the present invention implements in the segment space of main fuel tank or drop tank, does not affect the whole distance travelled of vehicle; L
2The space that is used for specially installing the withstand voltage body body of carbamide reducing agent, L
3The space that control unit is installed, in certain technological scheme, L
2Still have remaining ' space ' after the withstand voltage body of carbamide reducing agent is installed, and be enough to install and be installed in the original plan L
3Control unit in the space just can be installed on two side box bodies of the withstand voltage body of carbamide reducing agent, at this moment L
3Just and L
2Merge into a space, make this Combined oil tank compacter; The height of h2 should comprise height, the height of upper pipe plug 22, the height of welding pair tube 23 and the height of lower pipe plug 24 of 2 yielding support glue heaps 26, removes the h3 height of 2 welding areas; Upper pipe plug 22 and lower pipe plug 24 can be from market purchasings, also can order on request to producer, upper pipe plug 22 has preferably been reserved the hot melt interface of aerodynamic force pipeline 4 and carbamide reducing agent case lid 9 in advance, the rear tapping of also can holing, adopt the stainless steel threaded fitting to connect, be used for the filling of carbamide reducing agent, equally, lower pipe plug 24 will have been reserved carbamide reducing agent output tube 7 in advance, lower pipe plug 24 will reserve in advance carbamide reducing agent discharge valve 13 and lower pipe plug 24 will have been reserved carbamide reducing agent liquid level sensor 11 hot melt interfaces in advance, these interfaces also can adopt first good subdrilling hole and then tapping, adopt the stainless steel threaded fitting to connect; Upper pipe plug 22, welding pair tube 23 and lower pipe plug 24 become the main body of withstand voltage body according to the hot melt joint technology of routine; The proportionate relationship of the mounting point height h1 of carbamide reducing agent liquid level sensor 11 and the height h2 of the withstand voltage body 8 of carbamide reducing agent is h1/h2=1/5, calculates that thus this position should finish at lower pipe plug 24; It is the rapid pipe joint of the stainless or plastics of φ 4 ~ 6mm that aerodynamic force pipeline 4 and carbamide reducing agent output tube 7 can adopt internal diameter, and the same pipe plug and lower pipe plug carry out the hot melt joint or be threadedly engaged with linking into an integrated entity; Carbamide reducing agent case lid 9 is to be plastic tube or the same pipe plug realization hot melt of stainless steel threaded pipe of φ 30 ~ 60mm or to be threaded by internal diameter, carbamide reducing agent case lid 9 can adopt special lid, to be different from fuel tank lock 10, one of its purpose is the difference of opening shape, to be different from circular hole on the fuel tank lock, prevent from adding mutually between fuel oil and the carbamide reducing agent mistake, two of its purpose is unidirectional vent valves that combination has standard, can enter air by trace so that can be in the carbamide reducing agent case during liquid negative pressure, regulate pressure, in order to avoid produce negative pressure; Carbamide reducing agent liquid level sensor 11 and carbamide reducing agent discharge valve 13 are also carried out hot melt with lower pipe plug 24 or be threadedly engaged with, finish the complete making of the withstand voltage body 8 of carbamide reducing agent; Plastic pipe clip 25 is can be from the standard piece of market purchasing, also can make on request and order, its effect is the fixing withstand voltage body 8 of carbamide reducing agent, prevent move left and right, 2 ~ 5 of plastic pipe clip 25 recommendations, being less than 2 can't fix, unnecessary 5 restrictions that are subject to the space, plastic pipe clip 25 also can adopt ' pulling rivet ' fixing with adopting bolt to fix between the casing; That recommends yielding support glue heap 26 respectively uses up and down 3 ~ 6, place inboard yielding support glue heap 26 at assigned position first, and be bonded on the casing with industrial adhesive, after withstand voltage body 8 integral body are put the inlet body carbamide reducing agent, again the yielding support glue of top heap 26 firmly is pressed into, and be bonded on the casing with industrial adhesive, also can adopt foamed glue to fill small gap, realizes firm fixing; Also can adopt foamed glue to fix fully, the vehicle of this moment be more suitable in travelling under the condition preferably at urban traffic situation; After finishing withstand voltage body 8 installations of carbamide reducing agent, next included two accurate filters 1 that are fixed on both sides of control box 20 are installed again, an accurate gas solenoid valve 2 and two accurate pressure maintaining valves 3, three or more liquid precision solenoid valves 6, and control unit 5, adopt respectively one group of Steel Support 21 to be fixed on the base plate with upper-part, also can adopt the punched-plate of making after 1 ~ 3 sheetmetal punching, the two ends of this punched-plate are fastened on the both sides of casing, and the way that relevant undersized electrical equipment original paper is fixed on the punched-plate is installed; Liquid precision solenoid valve 6 is recommended 3 of minimum employings, adopts at most 6, and when quantity was 3, carbamide reducing agent can provide 7 dosage platforms, and degree of accuracy meets the demands, and after quantity surpassed 6, shared cost proportion was too large; Last operation be connect compressed-air power inlet opening 4, carbamide reducing agent output tube 7, turnover assembled casing 15, carbamide reducing agent delivery pipe 15-1, power lead 15-2, pressurized air output tube 15-3, pressurized air supplying tube 15-4, from the temperature feedback signal line 15-5 of catalytic converter, from the nitrogen oxide feedback signal line 15-6 of catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line 15-7 of operator cabin; Make natural ventilation port 17 and electric control box ventilated port 18 keep unimpeded; Seaming end cap buckle 19 is fixed; From this combination fuel tank afterwards observation is installed onboard, fuel oil casing 12 arranges that onboard positions are apart from the distance of motor farthest, and carbamide reducing agent casing 7 and electric control box 20 arranges that onboard positions are nearest apart from motor, and this Combined oil tank adopts carriage to be fixed on the vehicle frame; Carbamide reducing agent case lid 9 and fuel tank lock 10 are towards the outside, compartment; The withstand voltage body of carbamide reducing agent of the plastic tube body made of other withstand voltage material and diameter and wall thickness stands good in the present invention; Be contained in this casing with the withstand voltage body uneasiness of the carbamide reducing agent of plastic tube body made, stand good in the present invention and be mounted in certain position of vehicle frame, compartment or operator cabin.
Embodiment 1
Selecting material is SUS304 or SUS441 corrosion resistant plate, and its thickness is 1.2mm, and the spatial volume of fuel oil casing 12 and carbamide reducing agent are withstand voltage body 8 concerns L
1/ L
2=7, the volume of fuel oil casing 12 is 300L, and the spatial volume of carbamide reducing agent is withstand voltage body 8 is 45L; According to the manufacturing process of fuel tank of vehicle, the whole corrosion resistant plate that adopts is welded, and makes respectively fuel oil casing 12, reserves the space of placing the withstand voltage body 8 of carbamide reducing agent and electric control box 20; Wherein, fuel oil casing 12 is finished the sealing test of suppressing of 30min in advance under the 0.08Mpa constant voltage; Fuel tank lock 10 and fuel oil discharge valve 14 are installed respectively on fuel oil casing 12; Carbamide reducing agent is withstand voltage, and body 8 employing external diameters are 110mm, and wall thickness is that the three post PP plastic pipe hot meltings of 10mm form, at this moment L3=0; The carbamide reducing agent capacity reaches 11L, and through 0.3Mpa, 30min suppresses detection; Finish the connection that connects compressed-air power inlet opening 4, carbamide reducing agent output tube 7, carbamide reducing agent discharge valve 13, carbamide reducing agent case lid 9, carbamide reducing agent liquid level sensor 11; Then the elements under the casing of the withstand voltage body of carbamide reducing agent 8 both sides is finished electric control box 20 are installed, and finish respectively with one group of Steel Support 21 fixing of accurate filter 1, accurate gas solenoid valve 2, accurate pressure maintaining valve 3, control unit 5, liquid precision solenoid valve 6 is installed; Then the assembled casing 15 of turnover electric control box 20 is installed, comprising dosage pipe 15-1, the power lead 15-2 of carbamide reducing agent, pressurized air supplying tube 15-3, pressurized air output tube 15-4, from the temperature feedback signal line 15-5 of catalytic converter, from the nitrogen oxide feedback signal line 15-6 of catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line 15-7 of operator cabin; Make natural ventilation port 17 and electric control box ventilated port 18 keep unimpeded; Seaming end cap buckle 19 is fixed.Be configured for the above Combined oil tank of state's IV.
Of the present invention for the Combined oil tank more than state's IV, annotate simultaneously full-scale fuel oil and carbamide reducing agent, the consumption rate of carbamide reducing agent is 1/25 ~ 1/30 of fuel oil, annotating can guarantee 1500 ~ 2000 kilometers of Vehicle Driving Cycles behind a carbamide reducing agent, satisfies the SCR system of the above vehicle of state's IV of short-distance or city bus.
Selecting material is SUS304 or SUS441 corrosion resistant plate, and its thickness is 1.2mm, and the spatial volume of fuel oil casing 12 and carbamide reducing agent are withstand voltage body 8 concerns L
1/ L
2=5, the volume of fuel oil casing 12 is 400L, and the spatial volume of carbamide reducing agent is withstand voltage body 8 is about 80L; According to the manufacturing process of fuel tank of vehicle, the whole corrosion resistant plate that adopts is welded, and makes respectively fuel oil casing 12, reserves the space of placing the withstand voltage body 8 of carbamide reducing agent and electric control box 20; Wherein, fuel oil casing 12 is finished the sealing test of suppressing of 30min in advance under the 0.08Mpa constant voltage; Fuel tank lock 10 and fuel oil discharge valve 14 are installed respectively on fuel oil casing 12; Carbamide reducing agent is withstand voltage, and body 8 employing external diameters are 200mm, and wall thickness is that the three post PP plastic pipe hot meltings of 15mm form; The carbamide reducing agent capacity reaches 40L, and through 0.3Mpa, 30min suppresses detection; Finish the connection that connects compressed-air power inlet opening 4, carbamide reducing agent output tube 7, carbamide reducing agent discharge valve 13, carbamide reducing agent case lid 9, carbamide reducing agent liquid level sensor 11; Then the elements under the casing of the withstand voltage body of carbamide reducing agent 8 both sides is finished electric control box 20 are installed, and finish respectively with one group of Steel Support 21 fixing of accurate filter 1, accurate gas solenoid valve 2, accurate pressure maintaining valve 3, control unit 5, liquid precision solenoid valve 6 is installed; Then the assembled casing 15 of turnover electric control box 20 is installed, comprising dosage pipe 15-1, the power lead 15-2 of carbamide reducing agent, pressurized air supplying tube 15-3, pressurized air output tube 15-4, from the temperature feedback signal line 15-5 of catalytic converter, from the nitrogen oxide feedback signal line 15-6 of catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line 15-7 of operator cabin; Make natural ventilation port 17 and electric control box ventilated port 18 keep unimpeded; Seaming end cap buckle 19 is fixed.Be configured for the above Combined oil tank of state's IV.
Of the present invention for the Combined oil tank more than state's IV, annotate simultaneously full-scale fuel oil and carbamide reducing agent, the consumption rate of carbamide reducing agent is 1/25 ~ 1/30 of fuel oil, annotating can guarantee 3000 ~ 4500 kilometers of Vehicle Driving Cycles behind a carbamide reducing agent, satisfies the SCR system of the above vehicle of state's IV of medium sized vehicle or city bus.
Embodiment 3
Selecting material is SUS304 or SUS441 corrosion resistant plate, and its thickness is 1.2mm, and the spatial volume of fuel oil casing 12 and carbamide reducing agent are withstand voltage body 8 concerns L
1/ L
2=7, the volume of fuel oil casing 12 is 600L, and the spatial volume of carbamide reducing agent is withstand voltage body 8 is about 77L; According to the manufacturing process of fuel tank of vehicle, the whole corrosion resistant plate that adopts is welded, and makes respectively fuel oil casing 12, reserves the space of placing the withstand voltage body 8 of carbamide reducing agent and electric control box 20; Wherein, fuel oil casing 12 is finished the sealing test of suppressing of 30min in advance under the 0.08Mpa constant voltage; Fuel tank lock 10 and fuel oil discharge valve 14 are installed respectively on fuel oil casing 12; Carbamide reducing agent is withstand voltage, and body 8 employing external diameters are 220mm, and wall thickness is that the three post PP plastic pipe hot meltings of 20mm form; The carbamide reducing agent capacity reaches 46L, and through 0.3Mpa, 30min suppresses detection; Finish the connection that connects compressed-air power inlet opening 4, carbamide reducing agent output tube 7, carbamide reducing agent discharge valve 13, carbamide reducing agent case lid 9, carbamide reducing agent liquid level sensor 11; Then the elements under the casing of the withstand voltage body of carbamide reducing agent 8 both sides is finished electric control box 20 are installed, and finish respectively with one group of Steel Support 21 fixing of accurate filter 1, accurate gas solenoid valve 2, accurate pressure maintaining valve 3, control unit 5, liquid precision solenoid valve 6 is installed; Then the assembled casing 15 of turnover electric control box 20 is installed, comprising dosage pipe 15-1, the power lead 15-2 of carbamide reducing agent, pressurized air supplying tube 15-3, pressurized air output tube 15-4, from the temperature feedback signal line 15-5 of catalytic converter, from the nitrogen oxide feedback signal line 15-6 of catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line 15-7 of operator cabin; Make natural ventilation port 17 and electric control box ventilated port 18 keep unimpeded; Seaming end cap buckle 19 is fixed.Be configured for the above Combined oil tank of state's IV.
Of the present invention for the Combined oil tank more than state's IV, annotate simultaneously full-scale fuel oil and carbamide reducing agent, the consumption rate of carbamide reducing agent is 1/25 ~ 1/30 of fuel oil, annotate and to guarantee 6500 ~ 7500 kilometers of Vehicle Driving Cycles behind a carbamide reducing agent, satisfy the SCR system of the above vehicle of heavy vehicle state IV, be particularly suitable for the above vehicle of backwoodsman state IV.
Claims (6)
1. the pressure-withstanding combined oil tank of three post plastic tubes is by accurate filter (1), accurate gas solenoid valve (2), accurate pressure maintaining valve (3), aerodynamic force pipeline (4), control unit (5) independently, liquid precision solenoid valve (6), carbamide reducing agent output tube (7), the withstand voltage bodys of three post carbamide reducing agents (8), carbamide reducing agent case lid (9), fuel tank lock (10), carbamide reducing agent liquid level sensor (11), fuel oil casing (12), carbamide reducing agent discharge valve (13), fuel oil discharge valve (14), turnover assembled casing (15), carbamide reducing agent delivery pipe (15-1), power lead (15-2), pressurized air supplying tube (15-3), pressurized air output tube (15-4), temperature feedback signal line (15-5) from catalytic converter, nitrogen oxide feedback signal line (15-6) from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line T(15-7 of operator cabin), casing used for jointing soldering points (16), natural ventilation port (17), electric control box ventilated port (18), seaming end cap buckle (19), electric control box (20), Steel Support (21), upper pipe plug (22), welding pair tube (23), lower pipe plug (24), plastic pipe clip (25), yielding support Jiao Dui (26), two groups of welding area joints (27) form; It is characterized in that: a side of Combined oil tank is fuel oil casing (12), and the withstand voltage body of intermediate arrangement carbamide reducing agent (8), opposite side are electric control box (20); One side of electric control box (20) is provided with seaming end cap buckle (19); The withstand voltage body of carbamide reducing agent (8) is provided with carbamide reducing agent case lid (9), communicate with compressed-air power supplying tube (4) and carbamide reducing agent output tube (7), liquid level sensor (11) is fixed on the withstand voltage body of carbamide reducing agent, carbamide reducing agent discharge valve (13) is located at the bottom, be fixed with yielding support Jiao Dui (26) on upper pipe plug (22) and the lower pipe plug (24), plastic pipe clip (25) is fixedly connected on the casing; The withstand voltage body of carbamide reducing agent (8) is L2 in the length of combination fuel tank; The withstand voltage body of carbamide reducing agent (8) is a post by welding pair tube (23) and upper pipe plug (22) and lower pipe plug (24) thermal fusion welding, is connected as a single entity by two groups of welding area joints (27) between identical three the withstand voltage bodys of carbamide reducing agent (8) of structure; Under 0.3 ~ 0.7Mpa constant voltage, finish the sealing test of suppressing of 30min behind the fusion molding.
2. the pressure-withstanding combined oil tank of three post plastic tubes according to claim 1, the material that it is characterized in that described pressure-resistant plastic body is PP polypropylene, PE polyethylene, or the tubing of employing PP polypropylene and PE polyethylene and ethylene copolymers, its external diameter is 110 ~ 220mm, wall thickness 8 ~ 26mm.
3. the pressure-withstanding combined oil tank of three post plastic tubes according to claim 1, the internal chamber wall that it is characterized in that described electric control box (20) is provided with Steel Support (21) and is fixedly connected with two accurate filters that filter respectively pressurized air and carbamide reducing agent (1) that are fixed on both sides, the air mass flow of urea nozzle and urea box liquid level and accurate pressure maintaining valve (3) and three liquid precision solenoid valves (6) of pressure are transported in an accurate gas solenoid valve (2) and two adjustings, control unit (5) is fixed on the base plate, compressed-air power supplying tube (4), carbamide reducing agent output tube (7) links to each other with the withstand voltage body of carbamide reducing agent, in the turnover assembled casing (15) carbamide reducing agent delivery pipe (15-1) is arranged, power lead (15-2), pressurized air supplying tube (15-3), pressurized air output tube (15-4), temperature feedback signal line (15-5) from catalytic converter, nitrogen oxide feedback signal line (15-6) from catalytic converter, be input to the carbamide reducing agent liquid level warning signaling line (15-7) of operator cabin, natural ventilation port (17), electric control box ventilated port (18) is located at bottom half, and the length of electric control box (20) is L3.
4. the pressure-withstanding combined oil tank of three post plastic tubes according to claim 1 is characterized in that the Length Ratio of described fuel oil casing and the withstand voltage body of carbamide reducing agent (8) is L1/L2=3 ~ 10; The withstand voltage body of carbamide reducing agent (8) is that multilayer is arranged.
5. the pressure-withstanding combined oil tank of three post plastic tubes according to claim 1, it is characterized in that adopting between the plastic pipe of the withstand voltage body of described carbamide reducing agent (8) is threaded makes the withstand voltage body of combination, or adopts between plastic pipe and the stainless steel metal pipe fitting to be threaded and make the withstand voltage body of combination.
6. the pressure-withstanding combined oil tank of three post plastic tubes according to claim 1 is characterized in that comprising in the described Combined oil tank the auxiliary urea reducing agent spraying system of air take high-pressure air as power source, and the pressure of high-pressure air is 0.15 ~ 0.3Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105469370A CN102003314B (en) | 2010-11-17 | 2010-11-17 | Three-post plastic-pipe pressure-resistance combined oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105469370A CN102003314B (en) | 2010-11-17 | 2010-11-17 | Three-post plastic-pipe pressure-resistance combined oil tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003314A CN102003314A (en) | 2011-04-06 |
| CN102003314B true CN102003314B (en) | 2013-10-30 |
Family
ID=43810956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105469370A Expired - Fee Related CN102003314B (en) | 2010-11-17 | 2010-11-17 | Three-post plastic-pipe pressure-resistance combined oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003314B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275502A (en) * | 2011-06-20 | 2011-12-14 | 青岛环球集团股份有限公司 | Composite type aluminum alloy fuel tank |
| CN109113903B (en) * | 2018-08-29 | 2023-10-13 | 福建联合动力机电科技有限公司 | Split oil tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1645452A1 (en) * | 2004-10-08 | 2006-04-12 | Iveco S.p.A. | Integrated tank for urea, vehicle provided with this tank and method for storing urea solutions on a vehicle |
| CN101595284A (en) * | 2007-06-26 | 2009-12-02 | 日立建机株式会社 | Self-propelled engineer machinery |
| CN201538231U (en) * | 2009-12-09 | 2010-08-04 | 陕西重型汽车有限公司 | Combined urea oil box |
| CN201858061U (en) * | 2010-11-17 | 2011-06-08 | 中国第一汽车集团公司 | Pressure-proof assembled oil tank of three-column plastic pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0807173D0 (en) * | 2008-04-19 | 2008-05-21 | Agco Gmbh | Exhaust gas treatment system |
-
2010
- 2010-11-17 CN CN2010105469370A patent/CN102003314B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1645452A1 (en) * | 2004-10-08 | 2006-04-12 | Iveco S.p.A. | Integrated tank for urea, vehicle provided with this tank and method for storing urea solutions on a vehicle |
| CN101595284A (en) * | 2007-06-26 | 2009-12-02 | 日立建机株式会社 | Self-propelled engineer machinery |
| CN201538231U (en) * | 2009-12-09 | 2010-08-04 | 陕西重型汽车有限公司 | Combined urea oil box |
| CN201858061U (en) * | 2010-11-17 | 2011-06-08 | 中国第一汽车集团公司 | Pressure-proof assembled oil tank of three-column plastic pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102003314A (en) | 2011-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1311998C (en) | Motor vehicle having special arrangement of fuel tank, preliminary muffler and reduction agent tank | |
| CN105858576A (en) | Filling system for automotive urea solution and control method | |
| CN201902253U (en) | Selective catalytic reduction (SCR) urea tank for diesel engine exhaust post-treatment | |
| CN2916171Y (en) | Vehicular fuel filter and its assembly | |
| CN102003314B (en) | Three-post plastic-pipe pressure-resistance combined oil tank | |
| CN101793347A (en) | Gas filling station | |
| CN201858063U (en) | Pressure-withstanding combined oil tank with two-column plastic pipe | |
| CN201858061U (en) | Pressure-proof assembled oil tank of three-column plastic pipe | |
| CN111337108A (en) | Heating sensor | |
| CN101975128B (en) | Pressureproof combined type fuel tank of column plastic pipe | |
| CN201858062U (en) | Pressure-withstanding combined oil tank with multi-column plastic pipes | |
| CN102454517A (en) | Combined type fuel tank with three tanks | |
| CN201856634U (en) | Pressure-proof combined oil tank for plastic pipe | |
| CN101973205A (en) | Separated-combined type oil tank | |
| CN101979257B (en) | Pressure-resistant combined fuel tank with two-column plastic pipe | |
| CN203752891U (en) | Methyl alcohol/diesel oil combined fuel tank | |
| CN101973206B (en) | Pressure proof combined type oil tank of multi-column plastic pipe | |
| CN205740337U (en) | A kind of charging machine of urea for vehicle solution | |
| CN201835955U (en) | Three-tank composited combined oil tank | |
| CN203130208U (en) | Diesel engine selective catalyst reduction injection system | |
| CN205740338U (en) | A kind of loading system of urea for vehicle solution | |
| CN102454518A (en) | Combined type fuel tank | |
| CN201874708U (en) | Combined oil tank | |
| CN216785717U (en) | Urea filling device | |
| CN201884171U (en) | Partition combined type oil tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20191117 |