CN2411345Y - Smoke eliminating purification device for diesel engine - Google Patents
Smoke eliminating purification device for diesel engine Download PDFInfo
- Publication number
- CN2411345Y CN2411345Y CN 00231691 CN00231691U CN2411345Y CN 2411345 Y CN2411345 Y CN 2411345Y CN 00231691 CN00231691 CN 00231691 CN 00231691 U CN00231691 U CN 00231691U CN 2411345 Y CN2411345 Y CN 2411345Y
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- China
- Prior art keywords
- reaction chamber
- separating element
- diesel engine
- cracking device
- smoke purification
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Abstract
The utility model discloses a smoke eliminating purification device for diesel engines. The utility model comprises an alcohol cracking device which is provided which a filling low temperature catalyst reaction chamber, an evaporating pipe which is arranged in the cracking device and is communicated with the lower part of the reaction chamber, and a low-voltage electric heater and a temperature sensor arranged in the reaction chamber, wherein, the casing of the cracking device is provide with a heat-insulating layer; one side wall of the cracking device is provide with an exhaust manifold interface; the corresponding side wall of the cracking device is provide with a silencer interface; the top part of the cracking device is provide with an alcohol liquid inlet, and is connected with the evaporating pipe; separation units which can divide the reaction chamber into at least three layers are arranged in the reaction chamber; low temperature catalyst is arranged in the separation units.
Description
The utility model relates to a kind of purification plant of combustion engine tail gas, specifically, relates to the exhaust gas cleaner that a kind of diesel engine is mixed annealing in hydrogen atmosphere gas.
Diesel engine and petrol engine compare, and the former Economy, power character and emission performance all are better than the latter.The major defect of diesel engine is to contain carbon in its discharge tail gas and adheres to unburned HC compound on it.This harmful exhaust emission meeting atmosphere pollution worsens existent environment of people.
Utilizing motor exhaust to make alcohols be cracked into H2, is feasible when full engine load.But load or during idling operation in motor is in, because the shortage of heat in the tail gas and does not guarantee the supply that continues of holding of H2 so that the lytic response of alcohols is proceeded.As everyone knows, motor operates mainly under medium and small load or the idling operation when normal the use.Therefore, the alcohols lytic response can not be kept down basically.
In the prior art,, in the alcohols cracking reactor, add barrier plate, tail gas is moved by spiral path in order more to utilize using waste heat from tail gas.This mode has increased the time that tail gas is detained in reactor, exhaust resistance increases, make exhaust not smooth, thereby cause the waste gas row behind the engine combustion unclean, stay in the cylinder, engine breathing is insufficient, causes that engine power descends, and making incomplete combustion, this scheme can be brought immeasurable negative effect.
If use the high-tension electricity heater, can guarantee that the alcohols cracking normally carries out, but not have high-voltage power on the general vehicle that its application is also had any problem.
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and provide a kind of can be economical, reduce the diesel engine soot significantly easily, reach low soot discharging, and reduce NO simultaneously
xThe diesel engine smoke purification equipment of discharging.
Above-mentioned purpose of the present utility model is the heat by the tail gas that both utilizes motor, utilizes the low tension power supply heat supply on the vehicle again, with guarantee the alcohols lytic response continue to reach, its concrete technological scheme is as follows.
Diesel engine smoke purification equipment of the present utility model, comprise and be provided with the alcohols cracking device of filling the low temperature catalyst reaction chamber, the evaporating pipe that wherein places described cracking device and be communicated with the reaction chamber bottom places the low tension heater and the temperature transducer of reaction chamber, the shell of wherein said cracking device is the shell with thermal insulation layer, its sidewall near reaction chamber is provided with the discharge manifold interface, its sidewall near evaporating pipe is provided with the baffler interface, its top is provided with the inlet of pure class I liquid I, and is connected with evaporating pipe; In reaction chamber, be provided with the separating element of tool hole, reaction chamber is separated at least 3 layers, low temperature catalyst places separating element, and the cover plate that reaction chamber has flange plate and is attached thereto on the cover board is provided with the wiring outlet of relief opening and low tension heater and the outlet of temperature transducer.
Diesel engine smoke purification equipment of the present utility model, wherein said evaporating pipe are at least one spiral element.
Diesel engine smoke purification equipment of the present utility model, wherein said evaporating pipe are the volute of two suits.
Diesel engine smoke purification equipment of the present utility model, wherein said reaction chamber is bearing on the bearing that places described cracking device inner bottom part.
Diesel engine smoke purification equipment of the present utility model, the model of wherein said low temperature catalyst are R1 or R2; Described alcohols is methyl alcohol or ethanol.
Diesel engine smoke purification equipment of the present utility model, wherein said separating element is made of interior separating element and outer separating element, and is tubular, and wherein interior separating element nozzle up, outer separating element nozzle is provided with sheath towards the center in described temperature transducer outside.
Advantage of the present utility model is:
1. because for alcohols cracking system H
2React required heat both from the tail gas of diesel engine, add heat from low tension again, make this reaction can continue to carry out, employing is divided into the reaction chamber structure of multilayer, can prevent by the situation of the catalyzer due to the vibration to deposit, improved contacting of alcohol and catalyzer, made the alcohols lytic response to carry out fully, thereby guaranteed H
2Ample supply, soot in the diesel motor exhaust is reduced significantly can reach about 75% NO
xDecline 30-40%; The wherein recycling of tail gas heat quantity also can reduce the thermo-pollution to atmosphere;
2. owing to adopted low temperature catalyst, make reaction temperature be reduced to 220 ℃-280 ℃, save the energy and reach 8-10%.
3. adopt CPU Single-chip Controlling alcohols lytic response, operation is reached simplify most, and can realize best cooperating, can improve vehicle mileages of continuation 20% with the diesel engine operating mode;
4. connection and reasonable arrangement has guaranteed the path of alcohols cracking, thereby has improved the efficient of alcohols cracking;
5. the housing of alcohols cracking reactor outside adds thermal insulation layer, can prevent effectively that the outside width of cloth of heat from penetrating, thereby improve the heat energy utilization rate, simultaneously, when quitting work, prevents that cooling catalyst is too fast and the fragmentation that causes, can prolong life of catalyst;
6. evaporating pipe is a helical structure, eliminates internal stress effectively, and good manufacturability has improved the reliability of installing.
7. simple in structure, easy for installation, its cost is lower than to mix burns LPG, CNG, so little investment, instant effect is applicable to new machine and is using machine.
Below in conjunction with accompanying drawing method and apparatus of the present utility model is further described.
Fig. 1 is the smoke-eliminating purifying fundamental diagram of the utility model diesel motor exhaust.
Fig. 2 is the structure cross-sectional schematic of diesel engine smoke purification equipment of the present utility model.
As shown in Figure 1, on the one hand the tail gas of motor is introduced the methanol decomposition reactor, the part heat of reaction is provided, by electric pump methyl alcohol is introduced cracking device from methanol tank on the other hand, and open electric switch simultaneously, and make low-pressure heater work, provide lytic response required more heats.The H that the cracking device reaction produces
2Draw again and get back to motor.Like this, make on the one hand the heat of motor exhaust can obtain recycling, on the other hand, what enter atmosphere through the reaction chamber of methanol decomposition device or through this device and baffler is the tail gas that is cleaned.As from the foregoing, reaction temperature is by motor exhaust and low-voltage electric heater common guarantee.When reaction temperature is higher than 280 ℃, by the temperature transducer that places reaction chamber temperature signal is passed to CPU, CPU sends instruction, stops the heating of low tension heater, and another road signal strengthens the methyl alcohol supply, strengthens caloric receptivity, and temperature is descended; When temperature was lower than 220 ℃, temperature transducer was passed to CPU to electrical signal, and CPU sends instruction, connected the power supply of low tension heater, made its work, thus the rising reaction temperature.Like this, can guarantee reaction temperature between 220 ℃-280 ℃, the methanol decomposition reaction is normally carried out.The display device that is connected with CPU is used for showing the working state of device described in the utility model.
As shown in Figure 2, diesel engine smoke purification equipment of the present utility model comprises the alcohols cracking device 1 that is provided with filling low temperature catalyst 3 reaction chambers 2, the evaporating pipe 4 that wherein places described cracking device 1 and be communicated with for 2 times with reaction chamber, place the low tension heater 5 and the temperature transducer 6 of reaction chamber 2, the shell 7 of wherein said cracking device 1 is the shell with thermal insulation layer 8, its sidewall near reaction chamber 2 is provided with inlet manifold interface 9, its sidewall near evaporating pipe 4 is provided with baffler interface 10, its top is provided with the inlet 18 of pure class I liquid I, and is connected with evaporating pipe 4; In reaction chamber 2, be provided with the separating element 11 of tool hole, reaction chamber 2 is separated at least 3 layers, low temperature catalyst 3 places separating element, the cover plate 13 that reaction chamber 2 has flange plate 12 and is attached thereto is provided with the wiring outlet of relief opening 14 and low tension heater 5 and the outlet of temperature transducer on cover plate 13.Wherein: the model of described low temperature catalyst 3 is R1 or R2; Described alcohols is methyl alcohol or ethanol; Described evaporating pipe 4 is the volute of two suits; Described reaction chamber 2 is bearing on the bearing 15 that places described cracking device 1 inner bottom part; Described separating element 11 is made of interior separating element and outer separating element, and is tubular, wherein interior separating element nozzle up, outer separating element nozzle is towards the center; Be provided with sheath 16 in described temperature transducer 6 outsides.
Evaporating pipe 4 in this device can be by the Stainless Steel Tube coiled, and pure class I liquid I enters evaporating pipe 4 by methanol tank through electric pump as methyl alcohol, becomes methanol vapor after the heat absorption therein, enters reaction chamber 2 in the cracking device by described cracking device 1 bottom.Reaction chamber can be circle, and inside can be divided into for example three layers by the cylindrical shape separating element, and low temperature catalyst R1 (or R2) is contained in and respectively separates in the cylinder, decomposites H through 220 ℃ of-280 ℃ of heating
2Enter pressure balancing tank by relief opening again, enter each cylinder that the diesel engine inlet manifold sucks motor through solenoid valve (or one-way valve), Stainless Steel Tube.In addition, the inlet manifold interface 9 of this device is connected with waste pipe, and during engine operation, its high-temperature tail gas reaction chamber 2 of flowing through heat transferred low temperature catalyst 3, makes it to heat up.Motor is when big load, and low tension heater 5 quits work, and only supplies with the required hot gas of lytic response by motor exhaust.Can not satisfy the demand when motor exhaust, when the temperature of reaction chamber dropped to 220 ℃, temperature transducer was passed to CPU with signal, and CPU assigns instruction, connected the low tension heater power source, made its work, and passed to the required heat of lytic response.Therefore, under motor exhaust and the acting in conjunction of low tension heater, under temperature transducer and CPU control, guarantee temperature between 220 ℃-280 ℃, the methanol decomposition reaction is normally carried out.
The methyl alcohol supply by CPU according to controlling from the switch of the electrical signal of temperature transducer 6 and the program control pump finished according to the motor power condition in advance.Can guarantee that like this, also the lytic response temperature is controlled between 220 ℃-280 ℃.
In order to prevent the oxidation of low temperature catalyst, at H
2The gas outlet is connected to pressure balancing tank and solenoid valve.Like this, can adjust the whole H of confession effectively
2The pressure of system, when engine operating condition was changed, system pressure changed as far as possible little, guaranteed H
2Gas can balancedly be supplied with, and the burning of motor is improved all the time.When even motor quickens suddenly, also can obtain sufficient H
2The gas supply makes engine combustion abundant, reduces the harmful substance in the tail gas as far as possible, reaches few cigarette discharging.Smoke intensity can descend about 75% or more.
CPU in the utility model is installed in the instrument panel below; Display device is installed on the instrument panel; Pressure balancing tank, solenoid valve, electric switch, pump and methanol tank are installed under the vehicle body.
This device can be made into stand alone type and the form that links to each other with baffler for adapting to the different installation of motor on automobile.When motor when being preposition, adopt freestanding device, make it as far as possible near motor, so that make full use of heat in the motor exhaust; When motor is the back amount, then adopt this device that links to each other with baffler, so that reduce the turning of motor exhaust, more help bringing into play the characteristic of this device.
Claims (7)
1, a kind of diesel engine smoke purification equipment, comprise and be provided with the alcohols cracking device (1) of filling low temperature catalyst (3) reaction chamber (2), it is characterized in that: also comprise the evaporating pipe (4) that places described cracking device (1) and be communicated with reaction chamber (2) bottom, place the low tension heater (5) and the temperature transducer (6) of reaction chamber (2), the shell (7) of wherein said cracking device (1) is the shell with thermal insulation layer (8), its sidewall near reaction chamber (2) is provided with discharge manifold interface (9), its sidewall near evaporating pipe (4) is provided with baffler interface (10), its top is provided with the inlet (18) of pure class I liquid I, and be connected: the separating element (11) that in reaction chamber (2), is provided with the tool hole with evaporating pipe (4), reaction chamber (2) is separated at least 3 layers, low temperature catalyst (3) places separating element, the cover plate (13) that reaction chamber (2) has flange plate (12) and is attached thereto is provided with the wiring outlet of relief opening (14) and low tension heater (5) and the outlet of temperature transducer (6) on cover plate (13).
2, diesel engine smoke purification equipment according to claim 1 is characterized in that: described evaporating pipe (4) is at least one spiral element.
3, diesel engine smoke purification equipment according to claim 2 is characterized in that: described evaporating pipe (4) is the volute of two suits.
4, according to claim 1,2 or 3 described diesel engine smoke purification equipments, it is characterized in that: described reaction chamber (2) is bearing on the bearing (15) that places described cracking device (1) inner bottom part.
5, diesel engine smoke purification equipment according to claim 4 is characterized in that: the model of described low temperature catalyst (3) is R1 or R2; Described alcohols is methyl alcohol or ethanol.
6, diesel engine smoke purification equipment according to claim 4, it is characterized in that: described separating element is made of interior separating element and outer separating element, and be tubular, wherein interior separating element nozzle up, outer separating element nozzle is provided with sheath (16) towards the center in described temperature transducer outside.
7, diesel engine smoke purification equipment according to claim 5, it is characterized in that: described separating element is made of interior separating element and outer separating element, and be tubular, wherein interior separating element nozzle up, outer separating element nozzle is provided with sheath (16) towards the center in described temperature transducer outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231691 CN2411345Y (en) | 2000-04-03 | 2000-04-03 | Smoke eliminating purification device for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231691 CN2411345Y (en) | 2000-04-03 | 2000-04-03 | Smoke eliminating purification device for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411345Y true CN2411345Y (en) | 2000-12-20 |
Family
ID=33594524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231691 Expired - Fee Related CN2411345Y (en) | 2000-04-03 | 2000-04-03 | Smoke eliminating purification device for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411345Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772625B (en) * | 2007-08-08 | 2012-09-19 | 丰田自动车株式会社 | Control unit of diesel engine |
| CN103131460A (en) * | 2013-03-19 | 2013-06-05 | 湖南大学 | Heat exchanger for catalytic cracking of heat recovery fuel |
| CN103807130A (en) * | 2013-11-29 | 2014-05-21 | 上海合既得动氢机器有限公司 | Methanol produced hydrogen power pump and driving method thereof |
| CN109595060A (en) * | 2018-11-07 | 2019-04-09 | 上海创怡环境技术有限公司 | Non-rice habitats mechanically moving tail gas black smoke treatment and purification system and purification method |
-
2000
- 2000-04-03 CN CN 00231691 patent/CN2411345Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772625B (en) * | 2007-08-08 | 2012-09-19 | 丰田自动车株式会社 | Control unit of diesel engine |
| CN103131460A (en) * | 2013-03-19 | 2013-06-05 | 湖南大学 | Heat exchanger for catalytic cracking of heat recovery fuel |
| CN103807130A (en) * | 2013-11-29 | 2014-05-21 | 上海合既得动氢机器有限公司 | Methanol produced hydrogen power pump and driving method thereof |
| CN103807130B (en) * | 2013-11-29 | 2016-06-29 | 上海合既得动氢机器有限公司 | Alcohol hydrogen kinetic pump and driving method thereof |
| CN109595060A (en) * | 2018-11-07 | 2019-04-09 | 上海创怡环境技术有限公司 | Non-rice habitats mechanically moving tail gas black smoke treatment and purification system and purification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |