Engine exhaust microw ave treating device with temperature-measuring apparatus
A temperature measuring device and engine technology, which is applied in exhaust gas treatment, engine components, combustion engines, etc., can solve the problems of ceramic carrier damage, microwave exhaust processor inoperability, inability to use online, etc.
Inactive Publication Date: 2006-10-04
JILIN UNIV
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Problems solved by technology
[0004] However, the existing technology faces such a problem: when the carbon particles burn, the temperature in the resonant cavity can reach a very high temperature instantaneously. If the temperature in the microwave resonant cavity is not controlled, the unburned carbon particles continue to absorb Microwave energy burns, and the temperature in the resonant cavity will exceed the temperature that the ceramic carrier can withstand (generally, the temperature that the ceramic carrier can withstand is 1200-1400 degrees), which will damage the ceramic carrier and the microwave exhaust processor cannot work, resulting in Rising cost of exhaust gas treatment for diesel or gasoline engines
Most of the existing methods for measuring the temperature in the microwave resonator are indirect temperature measurement methods. Since the general temperature detector cannot accurately measure the temperature of the object under the microwave field, the temperature measurement error is very large, and the commonly used Infrared temperature detectors are expensive and not available online
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[0045] serial number
[0046] 15
[0047] It can be seen from the results in the above table that the application of the present invention to the engine ensures the full combustion of carbon deposits and controls the combustion temperature within the safe range of the ceramic carrier. The temperature measurement shows that the maximum temperature of this test is 825 degrees, although it is lower than the ceramic carrier can withstand the temperature of 1200-1400 degrees, but NO x The content of carbon dioxide and the soot particles on the ceramic carrier have all decreased significantly, and the requirements for removing harmful gases and soot particles in the exhaust gas have been fulfilled. Through the test, the optimum combustion temperature range in the resonant cavity can be determined. On the one hand, it ensures the safety of the ceramic carrier, on the other hand, it saves energy and can complete the purpose of the invention, and avoids the phenome...
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The present invention relates to an engine tail gas microwave processor with temperature-measuring device. Said microwave processor is formed from resonant cavity with gas inlet and gas outlet, ceramic carrier mounted in the resonant cavity, magnetron capable of producing 2450 MHz microwave and waveguide tube. Said process also has a thermocomple temp.-measuring device formed from metal shielding shell, heat-resistant insulating filling material and bimetal electric coupler. Said temp.-measuring device can be inserted into ceramic carrier and is contacted with ceramic carrier tightly, and said metal shielding shell is passed through the resonant cavity or its gas inlet and outlet, and welded with the outer shell of resonant cavity and electrically contacted with it.
Description
technical field [0001] The invention relates to an engine exhaust microwave processor, in particular to an engine exhaust processor using microwave technology and having a thermocouple temperature measuring device. Background technique [0002] Since its inception, diesel engines have been widely used in various power devices, such as automobiles, ships and generators, due to their good power, economy and durability. Especially since the 1990s, the number of diesel vehicles in the world has increased rapidly, which has made the application of diesel engines more extensive. The momentum of development of diesel vehicles in my country after the mid-1980s is also very rapid. However, due to the increasingly serious air pollution caused by diesel exhaust emissions, the development of diesel engines is greatly restricted. Pollutant components controlled by emission regulations in diesel engine and gasoline engine exhaust are mainly CO, HC, and NO x (Here mainly includes NO, NO ...
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IPC IPC(8): F01N11/00
CPCY02T10/47Y02T10/40
Inventor 韩炜许静龚依民徐玉书黄光寰陈岳黄惠军李刚徐鹏
Owner JILIN UNIV