CN201738993U - Waste gas purifying device for diesel engines - Google Patents
Waste gas purifying device for diesel engines Download PDFInfo
- Publication number
- CN201738993U CN201738993U CN2010202368195U CN201020236819U CN201738993U CN 201738993 U CN201738993 U CN 201738993U CN 2010202368195 U CN2010202368195 U CN 2010202368195U CN 201020236819 U CN201020236819 U CN 201020236819U CN 201738993 U CN201738993 U CN 201738993U
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- Prior art keywords
- diesel engine
- sensor
- waste gas
- shell
- controller
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Abstract
The utility model relates to a waste gas purifying device for diesel engines, comprising a heat conducting pipe, an outer casing, an ammonia spraying electromagnetic valve, a particle filter, an oxidization catalysis device, a dust discharge valve, a dust blowing valve, a vehicle speed sensor, a throttle sensor, a carbon monoxide sensor, a hydrocarbon sensor, a oxynitride gas sensor and a controller, wherein the heat conducting pipe is connected with the outlet of a gas exhaust pipe of the diesel engine; the outer casing is connected with the heat conducting pipe; and the ammonia spraying electromagnetic valve is arranged at the end of the outer casing, and communicated with the interior of the heat conducting pipe. As the waste gas purifying device of the diesel engine adopts the heat insulating layer to maintain the temperature of the waste gas, the carbon monoxide and the hydrocarbon are more converted into carbon dioxide and water, the solid particles in the discharged gas are reduced by the particle filter, and the oxidization catalysis device can further convert the carbon monoxide and the hydrocarbon into the pollution-free gas; the ammonia spraying electromagnetic valve can spray the ammonia to reduce the oxynitride under the control of the controller, and then the oxynitride is converted into the pollution-free gas.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to diesel engine, particularly a kind of waste gas cleaning plant that is used for diesel engine.
Background technique:
In the prior art, diesel engine, especially heavy duty diesel engine exhaust gas discharged environmental pollution is serious.Current, state 4 (Europe 4) standard has all been done new regulation to the toxic emission of automotive Diesel engine, have higher requirement, therefore adopt rational waste gas cleaning plant that the toxic emission of diesel engine of vehicle can be reduced, particularly reduce particulate matter and content hydrocarbon, hydrocarbon in the waste gas.
Summary of the invention:
The purpose of this utility model is to provide a kind of waste gas cleaning plant that is used for diesel engine, and the described this waste gas cleaning plant that is used for diesel engine will solve solid particulate matter and content technical problems of high hydrocarbon, hydrocarbon in the prior art diesel motor exhaust.
This waste gas cleaning plant that is used for diesel engine of the present utility model, comprise heat pipe, shell, the ammonia water spray solenoid valve, particulate filter, oxidation catalyzer, the dust drain, the dust blow off valve, vehicle speed sensor, throttle sensor, carbon monoxide transducer, the hydrocarbon gas sensor, nitrogen carrier of oxygen sensor and controller, wherein, described shell is connected with described heat pipe, described ammonia water spray solenoid valve is arranged on the end of shell, and with the internal communication of heat pipe, the middle part of shell is provided with cavity volume, described particulate filter and oxidation catalyzer are arranged in the described cavity volume, described dust drain and dust blow off valve are arranged on the sidewall of cavity volume, described carbon monoxide transducer, the hydrocarbon gas sensor, nitrogen carrier of oxygen sensor is arranged on the rear end of shell, vehicle speed sensor, throttle sensor, carbon monoxide transducer, the hydrocarbon gas sensor, the signal output part of nitrogen carrier of oxygen sensor is connected with described controller respectively, and the control end of ammonia water spray solenoid valve is connected with controller.
Further, described heat pipe is connected with the exhaust outlet of diesel engine, and described vehicle speed sensor, throttle sensor and controller are arranged on the diesel engine,
Further, the arranged outside of described shell has thermal insulation layer, the position that the corresponding described heat pipe in position, particulate filter and oxidation catalyzer are set of thermal insulation layer.
Further, the diameter at shell middle part is greater than the diameter at its two ends.
Further, described particulate filter is made of the plural layer wire gaze.
Further, described oxidation catalyzer is made of the three-layer metal silk screen, and the size of mesh of described three-layer metal silk is descending to successively decrease, and the wire skin of described wire gaze is coated with platinum layer.
Further, described dust blow off valve is an one-way valve, and described dust drain is arranged on the front panel of described cavity volume, and described dust blow off valve is arranged on the rear sidewall of described cavity volume.
Further, described controller is a microcomputer controller.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model adopts insulating to keep exhaust gas temperature at the waste gas cleaning plant that is used for diesel engine, increase the waste gas burning time, make carbon monoxide, hydrocarbon is more is converted into carbon dioxide and water, adopt particulate filter can further reduce to discharge solid particulate matter in the gas simultaneously, oxidation catalyzer can further make carbon monoxide, hydrocarbon is transformed into free of contamination gas, and the ammonia water spray solenoid valve sprays the ammoniacal liquor reduction of nitrogen oxide under controller action, make it become free of contamination gas, dusty gas and the solid particle of the utility model in can the comprehensive treatment of diesel oil motor reduces the pollution to environment.
Description of drawings:
Fig. 1 is the structural representation that is used for the waste gas cleaning plant of diesel engine of the present utility model.
Fig. 2 is the waste gas cleaning plant control principle schematic representation that is used for diesel engine of the present utility model.
Embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, the waste gas cleaning plant that is used for diesel engine of the present utility model, comprise heat pipe 1, shell 2, ammonia water spray solenoid valve 3, particulate filter 4, oxidation catalyzer 5, dust drain 6, dust blow off valve 7, vehicle speed sensor 9, throttle sensor 10, carbon monoxide transducer 11, the hydrocarbon gas sensor, nitrogen carrier of oxygen sensor 13 and controller 14 constitute, heat pipe 1 is connected with the exhaust outlet of diesel engine, shell 2 is connected with heat pipe 1, ammonia water spray solenoid valve 3 is arranged on shell 2 ends, and with heat pipe 1 internal communication, shell 2 middle parts are provided with cavity volume 21, be provided with particulate filter 4 and oxidation catalyzer 5 in the cavity volume 21, dust drain 6 and dust blow off valve 7 are arranged on cavity volume 21 sidewalls, vehicle speed sensor 9, throttle sensor 10 and controller 14 are arranged on the diesel engine, carbon monoxide transducer 11, hydrocarbon gas sensor 12, nitrogen carrier of oxygen sensor 13 is arranged on the rear end of shell 2, vehicle speed sensor 9, throttle sensor 10, carbon monoxide transducer 11, hydrocarbon gas sensor 12, the signal output part of nitrogen carrier of oxygen sensor 13 is connected with controller 14, the control end of ammonia water spray solenoid valve 3 is connected with controller 14, and ammonia water spray solenoid valve 3 is connected with the ammoniacal liquor source.
Further, the arranged outside of the shell 2 of heat pipe 1, particulate filter 4 and oxidation catalyzer 5 correspondences has thermal insulation layer 8.
Further, the diameter at shell 2 middle parts is greater than the diameter at its two ends, and one section shell that diameter is bigger constitutes cavity volume 21.
Further, particulate filter 4 is made of the plural layer wire gaze.
Further, oxidation catalyzer 5 is made of the three-layer metal silk screen, the descending variation of the size of mesh of three-layer metal silk, and the wire skin of wire gaze is coated with platinum layer.Certainly, the wire skin of wire gaze also can plate germanium.
Further, the dust blow off valve is 7 one-way valves, and dust drain 6 is arranged on the front panel of cavity volume 21, and two dust blow off valves 7 are arranged on the rear sidewall of cavity volume 21.
Further, controller 14 microcomputer controllers, such as single-chip microcomputer, programmable controller etc.
Claims (8)
1. waste gas cleaning plant that is used for diesel engine, comprise heat pipe, shell, the ammonia water spray solenoid valve, particulate filter, oxidation catalyzer, the dust drain, the dust blow off valve, vehicle speed sensor, throttle sensor, carbon monoxide transducer, the hydrocarbon gas sensor, nitrogen carrier of oxygen sensor and controller, it is characterized in that: described shell is connected with described heat pipe, described ammonia water spray solenoid valve is arranged on the end of shell, and with the internal communication of heat pipe, the middle part of shell is provided with cavity volume, described particulate filter and oxidation catalyzer are arranged in the described cavity volume, described dust drain and dust blow off valve are arranged on the sidewall of cavity volume, described carbon monoxide transducer, the hydrocarbon gas sensor, nitrogen carrier of oxygen sensor is arranged on the rear end of shell, vehicle speed sensor, throttle sensor, carbon monoxide transducer, the hydrocarbon gas sensor, the signal output part of nitrogen carrier of oxygen sensor is connected with described controller respectively, and the control end of ammonia water spray solenoid valve is connected with controller.
2. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1 is characterized in that: described heat pipe is connected with the exhaust outlet of diesel engine, and described vehicle speed sensor, throttle sensor and controller are arranged on the diesel engine.
3. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1 is characterized in that: the arranged outside of described shell has thermal insulation layer, the position that the corresponding described heat pipe in position, particulate filter and oxidation catalyzer are set of thermal insulation layer.
4. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1 is characterized in that: the diameter at shell middle part is greater than the diameter at its two ends.
5. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1 is characterized in that: described particulate filter is made of the plural layer wire gaze.
6. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1, it is characterized in that: described oxidation catalyzer is made of the three-layer metal silk screen, the size of mesh of described three-layer metal silk is descending to successively decrease, and the wire skin of described wire gaze is coated with platinum layer.
7. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1, it is characterized in that: described dust blow off valve is an one-way valve, described dust drain is arranged on the front panel of described cavity volume, and described dust blow off valve is arranged on the rear sidewall of described cavity volume.
8. the waste gas cleaning plant that is used for diesel engine as claimed in claim 1 is characterized in that: described controller is a microcomputer controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202368195U CN201738993U (en) | 2010-06-24 | 2010-06-24 | Waste gas purifying device for diesel engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202368195U CN201738993U (en) | 2010-06-24 | 2010-06-24 | Waste gas purifying device for diesel engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738993U true CN201738993U (en) | 2011-02-09 |
Family
ID=43554271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202368195U Expired - Fee Related CN201738993U (en) | 2010-06-24 | 2010-06-24 | Waste gas purifying device for diesel engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297003A (en) * | 2010-06-24 | 2011-12-28 | 上海通运汽车科技有限公司 | Waste gas cleaning device used for diesel engine |
| CN107143405A (en) * | 2017-03-24 | 2017-09-08 | 常州市金坛奉献橡塑有限公司 | A kind of vehicle maintenance service method |
-
2010
- 2010-06-24 CN CN2010202368195U patent/CN201738993U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297003A (en) * | 2010-06-24 | 2011-12-28 | 上海通运汽车科技有限公司 | Waste gas cleaning device used for diesel engine |
| CN107143405A (en) * | 2017-03-24 | 2017-09-08 | 常州市金坛奉献橡塑有限公司 | A kind of vehicle maintenance service method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110624 |