CN205895367U - Reinforcing formula automobile exhaust xylon clarifier based on low temperature plasma - Google Patents
Reinforcing formula automobile exhaust xylon clarifier based on low temperature plasma Download PDFInfo
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- CN205895367U CN205895367U CN201620799259.1U CN201620799259U CN205895367U CN 205895367 U CN205895367 U CN 205895367U CN 201620799259 U CN201620799259 U CN 201620799259U CN 205895367 U CN205895367 U CN 205895367U
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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
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- 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
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Abstract
本实用新型涉及了一种基于低温等离子体的增强式汽车尾气木纤维净化器，属于汽车尾气净化技术领域，包括反应器、法兰、轮毂状支撑架、木纤维DPF滤芯。反应器包括预反应器和主反应器两部分且通过法兰连接，反应器以石英玻璃管为放电介质，石英玻璃管外部与接地极相连接，预反应器中产生的高活性粒子可增强主反应器的净化能力。法兰接有高压电极接线柱，高压电极接线柱连接高压电极线，高压电极线通过轮毂状支撑架固定于反应器的中轴线位置，高压电极线穿过主反应器中的木纤维DPF滤芯，木纤维DPF滤芯内部中空且带有导流帽，通过轮毂状支撑架固定于石英玻璃管上。木纤维DPF滤芯与接地极绝缘连接，导流帽与高压电极线焊接为一体，该反应器主要应用于汽车尾气净化方面。
The utility model relates to an enhanced automobile exhaust wood fiber purifier based on low-temperature plasma, which belongs to the technical field of automobile exhaust purification and comprises a reactor, a flange, a hub-shaped support frame, and a wood fiber DPF filter element. The reactor consists of two parts, the pre-reactor and the main reactor, which are connected by flanges. The reactor uses a quartz glass tube as the discharge medium, and the outside of the quartz glass tube is connected to the ground electrode. The highly active particles produced in the pre-reactor can strengthen the main reactor. The purification capacity of the reactor. The flange is connected with a high-voltage electrode terminal. The high-voltage electrode terminal is connected to the high-voltage electrode wire. The high-voltage electrode wire is fixed on the central axis of the reactor through a hub-shaped support frame. The high-voltage electrode wire passes through the wood fiber DPF filter element in the main reactor. The wood fiber DPF filter element is hollow inside and has a diversion cap, and is fixed on the quartz glass tube through a hub-shaped support frame. The wood fiber DPF filter element is insulated and connected to the ground electrode, and the diversion cap is welded together with the high-voltage electrode wire. This reactor is mainly used in the purification of automobile exhaust gas.
Description
技术领域：Technical field:
本实用新型属于汽车尾气净化领域，具体涉及一种基于低温等离子体的增强式汽车尾气木纤维净化器。The utility model belongs to the field of automobile tail gas purification, in particular to an enhanced car tail gas wood fiber purifier based on low-temperature plasma.
背景技术：Background technique:
柴油机具有燃油经济性高、动力足和维护成本低等优点而被广泛应用，但其尾气所排放的污染物严重制约了柴油机的发展，柴油机尾气微粒物(PM)的排放量是汽油机的几十甚至上百倍，随着柴油车尾气排放标准的日益严格，降低PM和NOx排放量已成为研发的首要任务。选择性催化还原(SCR)系统和柴油车尾气微粒捕集器(DPF)已经在柴油车上加以应用。但是SCR系统存在使用温度范围小、氨气易泄漏、催化剂易中毒、占用空间大和成本高等问题；DPF存在对纳米级PM捕集效率低、可再生难、背压高和对油品要求高等问题。低温等离子体技术在柴油车尾气后处理技术中的应用已成为热点问题，但是由于其能量利用率低、结构复杂、目标产物选择性差等缺点使其依然没有达到商业化和规模化的需求。Diesel engines are widely used due to their high fuel economy, sufficient power, and low maintenance costs. However, the pollutants emitted by the exhaust gas seriously restrict the development of diesel engines. Diesel engine exhaust particulate matter (PM) emissions are dozens of gasoline engines Even hundreds of times, with the increasingly stringent emission standards for diesel vehicles, reducing PM and NOx emissions has become the primary task of research and development. Selective Catalytic Reduction (SCR) systems and Diesel Particulate Filters (DPF) have been used in diesel vehicles. However, the SCR system has problems such as small operating temperature range, easy leakage of ammonia gas, easy catalyst poisoning, large space occupation and high cost; DPF has problems such as low capture efficiency of nano-scale PM, difficult regeneration, high back pressure and high requirements for oil products. . The application of low-temperature plasma technology in diesel vehicle exhaust after-treatment technology has become a hot topic, but due to its low energy utilization rate, complex structure, and poor selectivity of target products, it still has not met the needs of commercialization and scale.
实用新型内容：Utility model content:
为了解决上述技术问题，本实用新型提供一种基于低温等离子体的增强式汽车尾气木纤维净化器，采用的技术方案如下：In order to solve the above technical problems, the utility model provides a low-temperature plasma-based enhanced automobile exhaust wood fiber purifier, and the adopted technical scheme is as follows:
一种基于低温等离子体的增强式汽车尾气木纤维净化器，包括预反应器、法兰、轮毂状支撑架、木纤维DPF滤芯等。反应器包括预反应器与主反应器两部分且通过法兰连接，反应器以石英玻璃管为放电介质，石英玻璃管外部与接地极相连接，预反应器中产生的高活性粒子可增强主反应器的净化能力，法兰连接便于净化器的拆卸和更换DPF滤芯。法兰接有高压电极接线柱，高压电极接线柱连接高压电极线，高压电极线通过轮毂状支撑架固定于反应器的中轴线位置，高压电极线穿过主反应器中的木纤维DPF滤芯，木纤维DPF滤芯内部中空且带有导流帽，通过轮毂状支撑架固定于石英玻璃管上。木纤维DPF滤芯与接地极绝缘连接，导流帽与高压电极线焊接为一体，法兰与石英玻璃管之间安装有密封胶圈，起到使反应器密封的作用，法兰处设置有“T”型绝缘垫，且滤芯负载纳米级氧化铈作为催化剂，可提高反应器的目标产物选择性。An enhanced automobile exhaust wood fiber purifier based on low-temperature plasma, including a pre-reactor, a flange, a hub-shaped support frame, a wood fiber DPF filter element, and the like. The reactor consists of two parts, the pre-reactor and the main reactor, which are connected by flanges. The reactor uses a quartz glass tube as the discharge medium, and the outside of the quartz glass tube is connected to the ground electrode. The highly active particles produced in the pre-reactor can strengthen the main reactor. The purification capacity of the reactor, the flange connection is convenient for the disassembly of the purifier and the replacement of the DPF filter element. The flange is connected with a high-voltage electrode terminal. The high-voltage electrode terminal is connected to the high-voltage electrode wire. The high-voltage electrode wire is fixed on the central axis of the reactor through a hub-shaped support frame. The high-voltage electrode wire passes through the wood fiber DPF filter element in the main reactor. The wood fiber DPF filter element is hollow inside and has a diversion cap, and is fixed on the quartz glass tube through a hub-shaped support frame. The wood fiber DPF filter element is insulated and connected to the ground electrode, the diversion cap is welded together with the high-voltage electrode wire, and a sealing rubber ring is installed between the flange and the quartz glass tube to seal the reactor. T”-shaped insulating mat, and the filter element supports nano-scale cerium oxide as a catalyst, which can improve the target product selectivity of the reactor.
本实用新型具有以下优点：本装置可安装在排气管后方，具有安装方便、净化效率高、排气背压小、目标产物选择性高和使用寿命长等优点，能有效控制柴油车尾气中PM和NOx的排放。The utility model has the following advantages: the device can be installed behind the exhaust pipe, has the advantages of convenient installation, high purification efficiency, small exhaust back pressure, high selectivity of target products and long service life, etc. PM and NOx emissions.
附图说明：Description of drawings:
图1是一种基于低温等离子体的增强式汽车尾气木纤维净化器结构示意图。Figure 1 is a schematic structural diagram of an enhanced wood fiber purifier for automobile exhaust based on low-temperature plasma.
具体实施方式：detailed description:
下面通过具体实施方式对本实用新型做进一步详细的说明：The utility model is described in further detail below by means of specific embodiments:
图中，1预反应器、2密封胶圈、3高压电极接线柱、4法兰、5主反应器、6木纤维DPF滤芯、7接地极、8石英玻璃管、9导流帽、10“T”型绝缘垫、11轮毂状支撑架、12高压电极线。In the figure, 1 pre-reactor, 2 sealing rubber ring, 3 high-voltage electrode terminal, 4 flange, 5 main reactor, 6 wood fiber DPF filter element, 7 grounding electrode, 8 quartz glass tube, 9 diversion cap, 10 " T”-shaped insulating pad, 11 hub-shaped support frame, 12 high-voltage electrode wires.
一种基于低温等离子体的增强式汽车尾气木纤维净化器，包括反应器、法兰4、轮毂状支撑架11、木纤维DPF滤芯6等。反应器包括预反应器1和主反应器5两部分且通过法兰4连接，反应器以石英玻璃管8为放电介质，石英玻璃管8外部与接地极7相连接。法兰4接有高压电极接线柱3，高压电极接线柱3连接高压电极线12，高压电极线12通过轮毂状支撑架11固定于反应器的中轴线位置，高压电极线12穿过主反应器5中的木纤维DPF滤芯6，木纤维DPF滤芯6内部中空且带有导流帽9，通过轮毂状支撑架固定于石英玻璃管8上。木纤维DPF滤芯6与接地极7绝缘连接，导流帽9与高压电极线12焊接为一体，法兰4与石英玻璃管8之间安装有密封胶圈2，法兰4处设置有“T”型绝缘垫10。当汽车启动以后，汽车尾气从进气口进入预反应器1，同时高压电极接线柱3接通电源，预反应器1中的放电区产生高活性粒子，如羟基、臭氧、O的自由基等，这些活性粒子与尾气中的NOx和PM发生复杂的氧化还原反应，一部分PM会被氧化为CO或CO2，一部分NOx会被还原为N2，在预反应器中未被反应的活性粒子在气流的作用下进入主反应器5中，主反应器5中的PM会被木纤维DPF滤芯6捕集，在催化剂和低温等离子体的协同作用下进一步被氧化为CO或CO2，剩余的NOx也将继续被净化为N2。An enhanced wood fiber purifier for automobile exhaust based on low-temperature plasma, including a reactor, a flange 4, a hub-shaped support frame 11, a wood fiber DPF filter element 6, and the like. The reactor includes two parts, a pre-reactor 1 and a main reactor 5, which are connected by a flange 4. The reactor uses a quartz glass tube 8 as a discharge medium, and the outside of the quartz glass tube 8 is connected to a ground electrode 7. The flange 4 is connected with a high-voltage electrode terminal 3, and the high-voltage electrode terminal 3 is connected with a high-voltage electrode wire 12. The high-voltage electrode wire 12 is fixed on the central axis of the reactor through a hub-shaped support frame 11, and the high-voltage electrode wire 12 passes through the main reactor. The wood fiber DPF filter element 6 in 5, the wood fiber DPF filter element 6 is hollow inside and has a diversion cap 9, and is fixed on the quartz glass tube 8 through a hub-shaped support frame. The wood fiber DPF filter element 6 is insulated and connected to the ground electrode 7, the diversion cap 9 is welded together with the high-voltage electrode wire 12, a sealing rubber ring 2 is installed between the flange 4 and the quartz glass tube 8, and a "T" is installed at the flange 4. ” type insulating pad 10. When the car is started, the exhaust gas of the car enters the pre-reactor 1 from the air inlet, and at the same time the high-voltage electrode terminal 3 is powered on, and the discharge area in the pre-reactor 1 produces highly active particles, such as hydroxyl, ozone, O free radicals, etc. , these active particles undergo complex redox reactions with NOx and PM in the exhaust gas, part of PM will be oxidized to CO or CO 2 , part of NOx will be reduced to N 2 , and the unreacted active particles in the pre-reactor Under the action of airflow, it enters the main reactor 5, and the PM in the main reactor 5 will be captured by the wood fiber DPF filter element 6, and will be further oxidized to CO or CO 2 under the synergistic effect of the catalyst and low-temperature plasma, and the remaining NOx It will also continue to be purged to N2 .
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664053A (en) * | 2016-07-28 | 2018-02-06 | 东北林业大学 | A kind of enhanced vehicle exhaust wood-fibred clarifier based on low temperature plasma |
| CN108654836A (en) * | 2018-04-19 | 2018-10-16 | 昆明理工大学 | The method and apparatus of magnetic strength electrofiltration dedusting cooperating with low-temperature plasma for purification toxic gas |
| CN109236423A (en) * | 2017-07-10 | 2019-01-18 | 东北林业大学 | Three-sectional low temperature plasma wood-fibred exhaust gas from diesel vehicle pollutant purification device |
| CN110043349A (en) * | 2018-01-14 | 2019-07-23 | 东北林业大学 | The rotary wood-fibred exhaust gas processing device of low temperature plasma |
-
2016
- 2016-07-28 CN CN201620799259.1U patent/CN205895367U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664053A (en) * | 2016-07-28 | 2018-02-06 | 东北林业大学 | A kind of enhanced vehicle exhaust wood-fibred clarifier based on low temperature plasma |
| CN107664053B (en) * | 2016-07-28 | 2023-10-31 | 东北林业大学 | An enhanced automobile exhaust wood fiber purifier based on low-temperature plasma |
| CN109236423A (en) * | 2017-07-10 | 2019-01-18 | 东北林业大学 | Three-sectional low temperature plasma wood-fibred exhaust gas from diesel vehicle pollutant purification device |
| CN110043349A (en) * | 2018-01-14 | 2019-07-23 | 东北林业大学 | The rotary wood-fibred exhaust gas processing device of low temperature plasma |
| CN108654836A (en) * | 2018-04-19 | 2018-10-16 | 昆明理工大学 | The method and apparatus of magnetic strength electrofiltration dedusting cooperating with low-temperature plasma for purification toxic gas |
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