CN212337487U - Energy-saving and emission-reducing integrated system of diesel engine - Google Patents
Energy-saving and emission-reducing integrated system of diesel engine Download PDFInfo
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- CN212337487U CN212337487U CN202020691671.8U CN202020691671U CN212337487U CN 212337487 U CN212337487 U CN 212337487U CN 202020691671 U CN202020691671 U CN 202020691671U CN 212337487 U CN212337487 U CN 212337487U
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- 239000000654 additive Substances 0.000 claims abstract description 115
- 230000000996 additive effect Effects 0.000 claims abstract description 108
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 32
- 239000002918 waste heat Substances 0.000 claims abstract description 32
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000008020 evaporation Effects 0.000 claims abstract description 20
- -1 polytetrafluoroethylene Polymers 0.000 claims description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 15
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 238000013178 mathematical model Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000009991 scouring Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 abstract description 10
- 238000004134 energy conservation Methods 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 description 19
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 238000006722 reduction reaction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- 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
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention relates to an energy-saving and emission-reducing integrated system of a diesel engine. The integrated system comprises an additive storage tank, an additive mixing tank and a waste heat evaporation coil; the additive mixing tank is connected between the additive storage tank and the waste heat evaporation coil pipe, the waste heat evaporation coil pipe is positioned in a tail gas pipe of the diesel engine, and the additive is gasified by recovering the waste heat of the tail gas of the diesel engine; the outlet of the waste heat evaporation coil is divided into a first additive branch pipe and a second additive branch pipe which are respectively communicated with the inlet of the EGR air inlet static mixer and the inlet of the air static mixer; the system also comprises a comprehensive control processor which obtains appointed state parameters by reading signals of the diesel engine controller, the EGR controller, the DPF controller and the receiving sensor, calculates data and outputs a control instruction, and adjusts the opening of the electric regulating valve and the opening and closing of the electromagnetic valve. By adopting the energy-saving emission-reducing comprehensive system, the addition form of the additive can be optimized, the addition amount of the additive can be accurately controlled, the coordination and matching of the emission-reducing device and the whole machine are enhanced, and the energy conservation and emission reduction of the diesel engine are realized.
Description
Technical Field
The invention relates to an energy-saving and emission-reducing integrated system for a diesel engine, which is used for controlling tail gas emission and oil consumption of the diesel engine and belongs to the technical research field of diesel engines.
Background
The problems of limited fossil energy resources and serious air pollution in cities in developing China are serious problems facing the environment worldwide. These two problems are associated with the combustion of petroleum fuels, while internal combustion engines consume a large portion of the global petroleum resources and are the main emission sources of atmospheric pollutants. The diesel engine is the main application form of the internal combustion engine, is the leading power equipment of the engineering vehicle, and relates to the development of important fields of industry, agriculture, national defense and the like. According to the statistical data of BP oil company, in 2005 + 2018, the demand of diesel oil is on the whole in a rapid growth trend in the world, and the average growth is about 9.38 ten thousand tons/day.
In China, diesel engines account for more than half of the number of internal combustion engines, but the application of the diesel engines has the defect of high emission of nitrogen oxides and suspended particulate matters. In 2013, the State Council issues 'opinions on strengthening the industrial energy conservation and emission reduction of the internal combustion engine', and aims to promote the research, development and application of a new energy conservation and emission reduction technology of the internal combustion engine, reduce the fuel consumption rate of the internal combustion engine and improve the energy conservation and emission reduction level of the internal combustion engine in China; in 2016, the national institute is about issuing a notification of a comprehensive working scheme of energy conservation and emission reduction, further emphasizes the urgency of energy conservation and emission reduction work, and popularizes an industrial intelligent energy-consumption monitoring and diagnosis technology; in 7 months in 2019, formal implementation of the emission limit of pollutants for heavy-duty diesel vehicles and the measurement method (sixth stage of China), which are released by the ministry of ecological environment, put higher requirements on the emission limit of pollutants for diesel engines.
The main pollutants of diesel exhaust are nitrogen oxides (NOx), hydrocarbons, carbon monoxide (CO) and suspended particulate matter. Aiming at the pollutants, the existing diesel emission reduction technology is divided into two categories, namely 'efficient combustion + Selective Catalytic Reduction (SCR)', namely combustion optimization is realized through fuel injection system structure and control optimization, incomplete combustion products such as carbon particulate matters are reduced, the engine power is improved, the SCR technology is reused to reduce the intensified NOx emission caused by the combustion optimization, and the emission reduction technology is mainly applied to heavy diesel engine systems; the second is 'Exhaust Gas Recirculation (EGR) + tail gas particulate matter removal', the exhaust of NOx is reduced by adopting an EGR technology, and the carbon particulate matter, hydrocarbons and CO are removed by matching a catalytic oxidizer with a particle trap (DPF). In the second technology, the incomplete combustion products of the DPF can be removed by adopting an additive mode to replace the application of a catalyst, so that the high requirement on oil products is reduced. In the prior art, an additive is directly added into a fuel tank, the amount of the additive combusted in each power stroke completely depends on the mixing degree of the additive in the fuel tank, and the blending amount of the additive cannot be accurately controlled, so that the combustion promoting effect of the additive is not ideal, the energy-saving and emission-reducing effects cannot be achieved, and certain economic loss is caused.
Aiming at the technical problems, the structure and control of the diesel engine energy-saving and emission-reducing system in the prior art are comprehensively optimized mainly by improving the adding form and the adding precision of the additive, and the coordination and matching of the emission-reducing device and the whole machine are enhanced so as to meet the diesel engine energy-saving and emission-reducing requirements.
Disclosure of Invention
The invention aims to provide an energy-saving and emission-reducing comprehensive system of a diesel engine, which realizes energy conservation and emission reduction of the diesel engine by optimizing the addition form of an additive and acquiring state parameters of the diesel engine to accurately control the addition amount of the additive.
In order to achieve the aim, the invention provides an energy-saving and emission-reducing integrated system of a diesel engine, which comprises an additive storage tank, an additive mixing tank and a waste heat evaporation coil.
The additive storage tanks specifically include a first additive storage tank, a second additive storage tank, and a third additive storage tank.
Preferably, the first additive storage tank, the second additive storage tank and the third additive storage tank are respectively filled with dimethyl carbonate, deionized water and methanol.
The additive mixing tank is connected between the additive storage tank and the waste heat evaporation coil, a first electric regulating valve, a second electric regulating valve and a third electric regulating valve are respectively arranged on connecting pipelines of the additive mixing tank and the first additive storage tank, the second additive storage tank and the third additive storage tank, and an electromagnetic valve is arranged on the connecting pipeline of the additive mixing tank and the waste heat evaporation coil.
Preferably, the additive mixing tank is internally provided with polytetrafluoroethylene balls and a polytetrafluoroethylene screen to promote the mixing of the additives and prevent the polytetrafluoroethylene balls from blocking a liquid outflow pipe orifice.
The waste heat evaporation coil is positioned in a tail gas pipe of the diesel engine, and the additive is gasified by recovering the waste heat of the tail gas of the diesel engine.
And the outlet of the waste heat evaporation coil is specifically divided into a first additive branch pipe and a second additive branch pipe which are respectively provided with a fourth electric regulating valve and a fifth electric regulating valve.
Preferably, the waste heat evaporation coil is located between the particle trapping device and the outlet of the tail gas pipe of the diesel engine, so that the scouring wear of particles in the tail gas to the waste heat evaporation coil is reduced.
The system further includes an EGR intake static mixer and an air static mixer; the EGR air inlet static mixer is connected to an EGR air inlet pipe, and an inlet is communicated with the additive first branch pipe; the air static mixer is positioned on an air inlet pipe before the turbocharger, and an inlet of the air static mixer is communicated with the additive second branch pipe.
The system also comprises a comprehensive control processor which obtains appointed state parameters by reading signals of the diesel engine controller, the EGR controller, the DPF controller and the receiving sensor, calculates data and outputs a control instruction, and adjusts the opening of the electric regulating valve and the opening and closing of the electromagnetic valve.
Preferably, the state parameters provided by the diesel engine controller specifically include engine speed, fuel injection quantity, flue gas oxygen content, air intake pressure, air intake temperature and air intake flow; the state parameters provided by the EGR controller specifically comprise EGR inlet pressure, EGR inlet temperature and EGR inlet flow; the state parameters provided by the DPF controller specifically comprise the concentration of particulate matters in the tail gas and exhaust back pressure; the state parameters transmitted by the sensor signal specifically comprise tail gas temperature, tail gas CO concentration and tail gas hydrocarbon concentration.
Preferably, the integrated control processor comprises a control system mathematical model capable of performing multivariate calculation on the acquired specified state parameters and outputting control signals; the mathematical model of the control system is obtained by analyzing a large amount of test data and empirical data.
Drawings
Fig. 1 is a schematic structural diagram of a specific embodiment of the energy-saving and emission-reducing integrated system of the diesel engine provided by the invention.
Fig. 2 is a block diagram of a control system of a diesel engine energy saving and emission reduction integrated system according to a specific embodiment of the present invention.
In fig. 1: an additive storage tank 1; a first additive reservoir 101; a second additive reservoir 102; a third additive reservoir 103; an additive mixing tank 2; a waste heat evaporating coil 3; an electric control valve 4; a first electric regulator valve 41; the second electrical regulator valve 42; the third electric regulator valve 43; an electromagnetic valve 5; a diesel engine tail gas pipe 6; polytetrafluoroethylene balls 7; a polytetrafluoroethylene screen 8; an additive first branch 9; an additive second branch pipe 10; the EGR intake static mixer 11; an air static mixer 12; an EGR intake pipe 13; an air intake duct 14; a fourth electric regulator valve 15; and a fifth electric regulator valve 16.
In fig. 2: an integrated control processor 17; a diesel engine controller 18; the EGR controller 19; a DPF controller 20.
Detailed Description
The core of the invention is to provide an energy-saving and emission-reducing integrated system, the opening and the closing of a valve are regulated and controlled through the state parameters of a diesel engine system, so that the addition amount of an additive is accurately controlled, the additive is fully mixed with air and EGR (exhaust gas recirculation) intake air in a gasification mode by using the waste heat of tail gas, the combustion of fuel oil is promoted, the phenomenon of insufficient combustion is avoided, the oil consumption is reduced, and the emission of pollutants is reduced.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings.
In a specific embodiment, the invention provides an energy-saving and emission-reducing integrated system for a diesel engine, which comprises an additive storage tank (1), an additive mixing tank (2), a waste heat evaporation coil pipe (3) and the like. The additive storage tank (1) specifically comprises a first additive storage tank (101), a second additive storage tank (102) and a third additive storage tank (103), and additives are filled in the additive storage tanks. The additive mixing tank (2) is connected between the additive storage tank (1) and the waste heat evaporation coil (3). The waste heat evaporating coil (3) is positioned in a tail gas pipe (6) of the diesel engine, and an outlet is particularly divided into a first additive branch pipe (9) and a second additive branch pipe (10).
By adopting the structure, various additives flowing out of the additive storage tank (1) firstly enter the additive mixing tank (2) to be fully mixed, then enter the waste heat evaporation coil (3) to absorb tail gas waste heat to be gasified into additive steam, and then enter the first additive branch pipe (9) and the second additive branch pipe (10).
Specifically, the first additive storage tank (101), the second additive storage tank (102) and the third additive storage tank (103) are respectively filled with dimethyl carbonate, deionized water and methanol. The mixture steam of the dimethyl carbonate, the deionized water and the methanol has good promotion effect on fuel combustion, can improve the fuel combustion performance, and reduces the generation of incomplete combustion products. The additive storage tank (1) can also contain other additives.
Specifically, the additive mixing tank (2) is internally provided with polytetrafluoroethylene balls (7) and polytetrafluoroethylene screens (8), different liquid additives flow across the surfaces of the polytetrafluoroethylene balls (7) and the surfaces of the polytetrafluoroethylene screens (8) in a crossing manner, and the additives are promoted to be mixed under the action of oscillation and rolling of the polytetrafluoroethylene balls (7). In addition, the polytetrafluoroethylene screen mesh (8) also has the function of preventing the polytetrafluoroethylene ball (7) from blocking the liquid outflow pipe orifice.
Specifically, above-mentioned waste heat evaporating coil (3) are located between granule entrapment device and diesel engine tail gas pipe (6) export, reduce the erosive wear of particulate matter to waste heat evaporating coil (3) in the tail gas, prolong waste heat evaporating coil's (3) life.
The system also comprises an EGR intake static mixer (11) and an air static mixer (12). The EGR intake static mixer (11) is connected to an EGR intake pipe (13), and an inlet of the EGR intake static mixer is communicated with the additive first branch pipe (9); the static air mixer (12) is located in the intake air line (14) upstream of the turbocharger, the inlet opening of which communicates with the second branch (10) of the additive. The additive vapour is thoroughly mixed with the EGR charge in an EGR charge static mixer (11) and with the air charge in an air static mixer (12).
By adopting the structure, different types of additive steam can be uniformly mixed and can be uniformly dispersed in the air inlet of the diesel engine in a steam form, so that the fuel oil is fully combusted, the utilization efficiency of the fuel oil is improved, carbon deposition is effectively removed, and the emission of CO and hydrocarbons is reduced.
The system also comprises a comprehensive control processor (17), a diesel engine controller (18), an EGR controller (19), a DPF controller (20), an electric regulating valve (4) and an electromagnetic valve (5). The first electric regulating valve (41), the second electric regulating valve (42) and the third electric regulating valve (43) are respectively arranged on connecting pipelines of the first additive storage tank (101), the second additive storage tank (102) and the third additive storage tank (103) and the additive mixing tank (2); a fourth electric regulating valve (15) and a fifth electric regulating valve (16) are respectively arranged on the additive first branch pipe (9) and the additive second branch pipe (10); the electromagnetic valve (5) is arranged on a connecting pipeline of the additive mixing tank (2) and the waste heat evaporation coil (3). The comprehensive control processor (17) obtains the designated state parameters by reading signals of the diesel engine controller (18), the EGR controller (19), the DPF controller (20) and the receiving sensor, calculates the data and outputs a control instruction, and adjusts the opening degree of the electric regulating valve (4) and the opening and closing of the electromagnetic valve (5).
By adopting the system, the comprehensive control processor (17) can adjust the opening degrees of the first electric control valve (41), the second electric control valve (42) and the third electric control valve (43), thereby reasonably controlling the content and the total amount of the additive components according to different running states of the diesel engine; the opening and closing of the electromagnetic valve are controlled through the power on or power off of the electromagnetic valve, so that the electromagnetic valve can act in cooperation with the electric regulating valve to provide reasonable time for mixing the additives; the opening degree of the fourth electric control valve (15) and the fifth electric control valve (16) is adjusted, so that the proportion of additive steam entering the additive first branch pipe (9) and the additive second branch pipe (10) is distributed.
Specifically, the comprehensive control processor (17) comprises a mathematical model of the control system, wherein the mathematical model is obtained by analyzing a large amount of test data and empirical data, and can perform multivariable calculation on the obtained specified state parameters and output control signals by taking the specified state parameters of the diesel engine as variables and the valve opening as functions.
Specifically, the state parameters provided by the diesel engine controller (18) specifically include engine speed, fuel injection amount, flue gas oxygen content, air intake pressure, air intake temperature, and air intake flow; the state parameters provided by the EGR controller (19) specifically comprise EGR intake pressure, EGR intake temperature and EGR intake flow; the state parameters provided by the DPF controller (20) specifically comprise the concentration of particulate matters in the exhaust gas and the exhaust back pressure; the state parameters of the sensor signal transmission specifically comprise tail gas temperature, tail gas CO concentration and tail gas hydrocarbon concentration.
The description of the embodiments of the present invention is only for the purpose of assisting understanding of the core idea of the present invention, and is not intended to limit the embodiments of the present invention. It should be understood that any modification, equivalent replacement, and improvement made by those skilled in the art without departing from the principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims (6)
1. The energy-saving and emission-reducing integrated system of the diesel engine is characterized by comprising an additive storage tank (1), an additive mixing tank (2) and a waste heat evaporation coil (3); the additive storage tank (1) specifically comprises a first additive storage tank (101), a second additive storage tank (102) and a third additive storage tank (103); the additive mixing tank (2) is connected between the additive storage tank (1) and the waste heat evaporation coil (3), connecting pipelines of the additive mixing tank (2) and the first additive storage tank (101), the second additive storage tank (102) and the third additive storage tank (103) are respectively provided with a first electric regulating valve (41), a second electric regulating valve (42) and a third electric regulating valve (43), and a connecting pipeline of the additive mixing tank (2) and the waste heat evaporation coil (3) is provided with an electromagnetic valve (5); the waste heat evaporation coil (3) is positioned in a tail gas pipe (6) of the diesel engine, and the additive is gasified by recovering the waste heat of the tail gas of the diesel engine; the outlet of the waste heat evaporation coil (3) is specifically divided into a first additive branch pipe (9) and a second additive branch pipe (10), and a fourth electric regulating valve (15) and a fifth electric regulating valve (16) are respectively arranged on the outlet; also comprises an EGR intake static mixer (11) and an air static mixer (12); the EGR intake static mixer (11) is connected to an EGR intake pipe (13), and an inlet of the EGR intake static mixer is communicated with the additive first branch pipe (9); the air static mixer (12) is positioned on an air inlet pipe (14) before the turbocharger, and an inlet of the air static mixer is communicated with the additive second branch pipe (10); the system also comprises a comprehensive control processor (17), which obtains the designated state parameters by reading signals of the diesel engine controller (18), the EGR controller (19), the DPF controller (20) and the receiving sensor, calculates the data and outputs a control instruction, and adjusts the opening of the electric regulating valve (4) and the opening and closing of the electromagnetic valve (5).
2. The energy-saving and emission-reducing integrated system for diesel engines as claimed in claim 1, wherein the first additive storage tank (101), the second additive storage tank (102) and the third additive storage tank (103) are filled with dimethyl carbonate, deionized water and methanol, respectively.
3. The energy-saving and emission-reducing integrated system for the diesel engine according to claim 1, wherein a polytetrafluoroethylene ball (7) and a polytetrafluoroethylene screen (8) are arranged in the additive mixing tank (2) to promote additive mixing and prevent the polytetrafluoroethylene ball (7) from blocking a liquid outflow pipe orifice.
4. The energy-saving and emission-reducing integrated system for the diesel engine according to claim 2, wherein the waste heat evaporating coil (3) is located between the particle trapping device and an outlet of the tail gas pipe (6) of the diesel engine, so that the scouring wear of particles in the tail gas to the waste heat evaporating coil (3) is reduced.
5. The energy-saving and emission-reducing integrated system for the diesel engine as claimed in claim 4, wherein the state parameters provided by the diesel engine controller (18) specifically include engine speed, fuel injection quantity, flue gas oxygen content, air intake pressure, air intake temperature, and air intake flow rate; the state parameters provided by the EGR controller (19) specifically comprise EGR intake pressure, EGR intake temperature and EGR intake flow; the state parameters provided by the DPF controller (20) specifically comprise the concentration of particulate matters in the exhaust gas and the exhaust back pressure; the state parameters transmitted by the sensor signal specifically comprise tail gas temperature, tail gas CO concentration and tail gas hydrocarbon concentration.
6. The diesel engine energy-saving emission-reducing integrated system according to claim 5, wherein the integrated control processor (17) comprises a control system mathematical model capable of performing multivariate calculation on the acquired designated state parameters and outputting control signals; the mathematical model of the control system is obtained by analyzing a large amount of test data and empirical data.
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| CN202020691671.8U CN212337487U (en) | 2020-04-29 | 2020-04-29 | Energy-saving and emission-reducing integrated system of diesel engine |
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| CN202020691671.8U CN212337487U (en) | 2020-04-29 | 2020-04-29 | Energy-saving and emission-reducing integrated system of diesel engine |
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