CN203742719U - Water supplementing tank control system of explosion-proof diesel engine - Google Patents
Water supplementing tank control system of explosion-proof diesel engine Download PDFInfo
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- CN203742719U CN203742719U CN201420126257.7U CN201420126257U CN203742719U CN 203742719 U CN203742719 U CN 203742719U CN 201420126257 U CN201420126257 U CN 201420126257U CN 203742719 U CN203742719 U CN 203742719U
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- water
- water washing
- washing box
- liquid level
- diesel engine
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Abstract
The utility model discloses a water supplementing tank control system of an explosion-proof diesel engine. The water supplementing tank control system comprises an exhaust main pipe (1), a water washing tank (2), a water supplementing tank (5) and an ECU (4). The exhaust main pipe (1) is connected with the water washing tank (2). The water supplementing tank (5) supplements water into the water washing tank (2) through a pipeline. An electronic liquid level sensor (3) is arranged in the water washing tank (2). The ECU (4) is connected with the electronic liquid level sensor (3) and an electromagnetic valve (6). The electronic liquid level sensor (3) is used for obtaining liquid level information of the water washing tank (2). The ECU (4) is used for controlling opening or closing of the electromagnetic valve (6) according to the liquid level information and a preset liquid level threshold value. The tail gas processing effect of the explosion-proof diesel engine is greatly improved.
Description
Technical field
The utility model belongs to anti-explosion diesel engine field, particularly a kind of anti-explosion diesel engine water supply tank control system.
Background technique
At present, the mining transportation vehicle taking diesel engine as power need to carry out vent gas treatment, in order to make the temperature of diesel engine lower than 70 ° of C, the tail gas of diesel engine be passed in water washing box.On the other hand, in diesel engine running, because the water in water washing box is constantly taken out of, therefore, water level in water washing box can be more and more lower, and in the time that the water level in water washing box is too low, at this moment the temperature of diesel engine will exceed 70 ° of C, need to set up again a water supply tank, the water in water supply tank is filled into water washing box.In mine vehicle anti-explosion diesel engine, be by manual operation from water supply tank to water washing box major part now, adopt mechanical float ball valve to carry out moisturizing control, can not carry out in time moisturizing.In the exhaust of anti-explosion diesel engine not diluted, its harmful gas composition carbon monoxide (CO) is very high with the volume concentration of nitrogen oxide (NOx), and this is unallowed for mine operation.
Summary of the invention
For the defect of prior art, the utility model provides a kind of anti-explosion diesel engine tail gas processing system.
A kind of anti-explosion diesel engine water supply tank control system, comprising: exhaust manifold 1, water washing box 2, water supply tank 5 and ECU4;
Described exhaust manifold 1 is connected with water washing box 2, water supply tank 5 by pipeline to the interior moisturizing of water washing box 2; In described water washing box 2, be provided with electronic liquid level sensor 3, ECU4 is connected with solenoid valve 6 with liquid level sensor 3, electronic liquid level sensor 3 is for obtaining the water level information of water washing box 2, and ECU4 is for according to the unlatching of water level information and predetermined watermark threshold control solenoid valve 6 or close; Described solenoid valve 6 is arranged on the water pipe line between water supply tank 5 and water washing box 2;
Described exhaust manifold 1 includes the waste gas solid particle connecting successively and processes pipe 1.1, harmful gas processing pipe 1.2 and waste gas cooling tube 1.3; The inner chamber that described waste gas solid particle is processed pipe 1.1 is provided with oxidizing catalytic converter (DOC) and particulate filter (DPF); Described harmful gas is processed in pipe 1.2 and is provided with selective catalytic reduction device (SCR);
Described water washing box 2 comprises the casing 2.8 that water is housed, casing 2.8 is provided with tail gas suction port 2.2 and the relief opening 2.1 that is connected air-water separation mechanism, in casing 2.8, be at least provided with a mixing wastewater with air plate 2.3 according to tail gas motion path, described mixing wastewater with air plate 2.3 comprises skeleton 2.6, in skeleton 2.6, be filled with filler 2.7, described relief opening 2.1 bottoms are provided with guide plate 2.10, and the bottom of described casing 2.8 is provided with sewage draining exit 2.5.
Optionally, described mixing wastewater with air plate 2.3 is provided with waveform filter plate 2.9.
The beneficial effects of the utility model are: water washing box water replenishing device has increased controller, obtain at liquid level sensor after the water level information of water washing box, determine the unlatching of moisturizing valve or close according to this water level information by controller, and then realize in needs, be water washing box moisturizing, thereby make the water level in water washing box controlled; By utilizing particulate filter (DPF) to process the solid particulate matter (PM) of anti-explosion diesel engine discharging waste gas, and utilize the regeneration of oxidation catalyst (DOC) auxiliary particle filter (DPF) then to utilize selective catalytic reduction device (SCR) to reduce harmful gas composition nitrogen oxide (NOx) content in waste gas; Water washing box is simple in structure, owing to making tail gas and water obtain fully mixing and contacting, seizure to particulate matter and the assimilation effect of harmful gas are obviously better than the water washing cleaning case of other pattern, and gas and water separator has effectively reduced the consumption of water, and operating cost is low and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model anti-explosion diesel engine water supply tank control system;
Fig. 2 is the structural representation of exhaust manifold;
Fig. 3 is the structural representation of water washing box;
Fig. 4 is the structural representation of mixing wastewater with air plate.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, it will be more clear making above-mentioned and other object of the present utility model, Characteristics and advantages.In whole accompanying drawings, identical reference character is indicated identical part.Deliberately do not draw in proportion accompanying drawing, focus on illustrating purport of the present utility model.
Below in conjunction with Fig. 1, preferred embodiment of the present utility model is elaborated.Anti-explosion diesel engine tail gas processing system, comprises the exhaust manifold 1 being connected with water washing box 2, and water supply tank 5 is for to the interior moisturizing of water washing box 2.In water washing box 2, be provided with electronic liquid level sensor 3, the ECU4 of diesel engine is connected with solenoid valve 6 with liquid level sensor 3.Wherein, electronic liquid level sensor 3 is for obtaining the water level information of water washing box 2; ECU4 is connected with liquid level sensor 3, for determining the unlatching of solenoid valve 6 or close according to water level information and predetermined watermark threshold; And solenoid valve 6 is arranged on the water pipe line between water supply tank 5 and water washing box 2.
Electronic liquid level sensor 3 is connected with the signal input part of ECU4 by signaling line, and the signal output part of ECU4 is connected with the control coil of solenoid valve 3 by guide line.ECU4 gathers water level information by electronic liquid level sensor 2, and this water level information is fed back to the ECU4 in electric control box, ECU4 controls the break-make of the solenoid valve 6 installing additional according to water level information, thereby can judge according to the water level actual height of water washing box 2 and predefined watermark threshold solenoid valve 6 break-makes of solenoid valve, realize the whether moisturizing from water supply tank 5 to water washing box 2.Particularly, when water washing box 2 middle water levels are during lower than designated water level value, electronic liquid level sensor 3 can be passed to ECU4 by electrical signal, ECU4 controls solenoid valve 6, solenoid valve 6 is opened, and the water in water supply tank 5 can fill in water washing box 1 by solenoid valve 6, when the water level value in water washing box 1 is during higher than designated water level value, solenoid valve 6 cuts out, thereby can control the water level in water washing box 1.
In order to realize the effective processing to tail gas, exhaust manifold 1 includes the waste gas solid particle connecting successively and processes pipe 1.1, harmful gas processing pipe 1.2 and waste gas cooling tube 1.3(Fig. 2).Before toxic emission, process and manage 1.1 minimizing subparticles (PM) through waste gas solid particle, process the concentration of pipe 1.2 minimizing nitrogen oxide (NOx) through harmful gas, process waste gas cooling tube 1.3 reduces temperature, and dilutes carbonomonoxide concentration.The inner chamber that waste gas solid particle is processed pipe 1.1 is provided with the subparticle (PM) in oxidizing catalytic converter (DOC) and particulate filter (DPF) processing waste gas, particulate filter (DPF) micro particle catching technology is the most effectively particulate purification technics of generally acknowledging at present, is also one of best technology of current commercial prospect.Selective catalytic reduction device (SCR) treatment technology for what process nitrogen oxides of exhaust gas NOx employing, utilize urea liquid (concentration of aqueous solution is 32.5% ± 0.5%), in exhaust, spray into the reducing substances such as urea, ammoniacal liquor, nitrogen oxide NOx (90% left and right is NO) is reduced to nitrogen (N2) and water (H2O).It is nontoxic, clean, odorlessness, be difficult for catching fire, without explosion risk.Due to the particularity of anti-explosion diesel engine applying working condition, as the power source as in coal mine transport vehicle, anti-explosion diesel engine safety standard requires its surface temperature can not exceed 150 DEG C, exhaust temperature can not exceed the particular/special requirements such as 70 DEG C.In embodiments of the invention, be also provided with waste gas cooling tube 3, by waste gas cooling tube, the exhaust gas temperature in exhaust manifold reduced.
Exhaust manifold 1 is connected with water washing box 2, and the waste gas that exhaust manifold 1 is discharged only has through water washing box 2 further could discharge by the tail gas discharging pipe on water washing box after washing processing, refer to Fig. 3,4.
Particularly, water washing box 2 comprises the casing 2.8 that water is housed, casing 2.8 is provided with tail gas suction port 2.2, is connected with the relief opening 2.1 of air-water separation mechanism, in casing 2.8, be at least provided with a mixing wastewater with air plate 2.3 according to tail gas motion path, described mixing wastewater with air plate 2.3 comprises skeleton 2.6, in skeleton 2.6, be filled with the filler 2.7 of being prepared by heatproof, resistant material, described filler 2.7 is entwined by the random song that turns of strip material, and the cross section of strip material is blunt form cross section; Tail gas cracks gross blowhole into micro-bubble through mixing wastewater with air plate 2.3, is fully combined purification with water, then discharges from relief opening 2.1 after air-water separation mechanism realizes air-water separation.The cross section of the present embodiment strip material is rectangle, and material is stainless steel, and the thickness (minor face) of strip material is 0.05 ㎜, and width (long limit) is 2 ㎜.For air water is effectively separated, air-water separation of the present invention mechanism comprise be arranged in casing 2.8, the guide plate 2.10 of relief opening 2.1 bottoms, under guide plate 2.10 effects, the ascending motion of spinning of moisture tail gas, moisture is thrown to the cylinder inboard wall of relief opening 2.1 under the effect of centrifugal force, realize air-water separation, tail gas in relief opening 2.1, spin ascending motion discharge.For further promoting that steam-water mixing contacts and catch particulate matter, on mixing wastewater with air plate 2.3 of the present utility model, can also be provided with waveform filter plate 2.9, further to promote mixing wastewater with air.Motor exhaust enters casing 2.8 bottoms from suction port 2.2 and contacts with water, and in the time that tail gas passes through the filler 2.7 of mixing wastewater with air plate 2.3, gross blowhole is cut into the small bubble that much surrounded by liquid by filler 2.7, forms foam.Because filler 2.7 is random random windings; make small bubble in the overall random motion upwards of the interior do of casing 2.8; when random motion, impact, collide with other bubble or liquid again; further promotion gas fully mixes with liquid; make the particulate matters such as the carbon dust in tail gas and harmful gas by fluid acquisition, absorption; stay in casing 2.8, waveform filter plate 2.9 further promotes that steam-water mixing contacts and catch particulate matter; When blowdown, the particulate matter of catching is discharged by sewage draining exit 2.5 with sewage.
In above description, a lot of details are set forth so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be implemented to be much different from alternate manner described here, and therefore the utility model is not subject to the restriction of disclosed concrete enforcement above.Any skilled personnel are not departing from technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement to make many possible variations and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Every content that does not depart from technical solutions of the utility model,, all still belongs in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present utility model.
Claims (2)
1. an anti-explosion diesel engine water supply tank control system, is characterized in that, comprising: exhaust manifold (1), water washing box (2), water supply tank (5) and ECU(4);
Described exhaust manifold (1) is connected with water washing box (2), water supply tank (5) by water pipe line to the interior moisturizing of water washing box (2); In described water washing box (2), be provided with electronic liquid level sensor (3), ECU(4) be connected with solenoid valve (6) with electronic liquid level sensor (3), described solenoid valve (6) is arranged on the water pipe line between water supply tank (5) and water washing box (2); Electronic liquid level sensor (3) is for obtaining the water level information of water washing box (2), ECU(4) for according to the unlatching of water level information and predetermined watermark threshold control solenoid valve (6) or close;
Described exhaust manifold (1) includes the waste gas solid particle connecting successively and processes pipe (1.1), harmful gas processing pipe (1.2) and waste gas cooling tube (1.3); The inner chamber that described waste gas solid particle is processed pipe (1.1) is provided with oxidizing catalytic converter (DOC) and particulate filter (DPF); Described harmful gas is processed in pipe (1.2) and is provided with selective catalytic reduction device (SCR);
Described water washing box (2) comprises the casing (2.8) that water is housed, casing (2.8) is provided with tail gas suction port (2.2) and the relief opening (2.1) that is connected air-water separation mechanism, in casing (2.8), be at least provided with a mixing wastewater with air plate (2.3) according to tail gas motion path, described mixing wastewater with air plate (2.3) comprises skeleton (2.6), in skeleton (2.6), be filled with filler (2.7), described relief opening (2.1) bottom is provided with guide plate (2.10), and the bottom of described casing (2.8) is provided with sewage draining exit (2.5).
2. system according to claim 1, is characterized in that, described mixing wastewater with air plate (2.3) is provided with waveform filter plate (2.9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126257.7U CN203742719U (en) | 2014-03-20 | 2014-03-20 | Water supplementing tank control system of explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126257.7U CN203742719U (en) | 2014-03-20 | 2014-03-20 | Water supplementing tank control system of explosion-proof diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN203742719U true CN203742719U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126257.7U Expired - Fee Related CN203742719U (en) | 2014-03-20 | 2014-03-20 | Water supplementing tank control system of explosion-proof diesel engine |
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| CN (1) | CN203742719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805082A (en) * | 2019-11-11 | 2020-02-18 | 江苏天煤机电科技有限公司 | Mining multifunctional explosion-proof excavator |
-
2014
- 2014-03-20 CN CN201420126257.7U patent/CN203742719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805082A (en) * | 2019-11-11 | 2020-02-18 | 江苏天煤机电科技有限公司 | Mining multifunctional explosion-proof excavator |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140730 Termination date: 20190320 |