Combustor with adjustable flame

Abstract

The invention, which belongs to the technical field of the combustion equipment, discloses a combustor with an adjustable flame. The combustor is mainly applied to the oil injection combustion-supporting regeneration process of the diesel particulate filter; and a thin steel plate with the adjustable taper is added into a combustion chamber of a traditional combustor. An adjusting circular plate that moves horizontally with rotation of a long screw rod a and a long screw rod b is arranged at the outer side of the tapered combustion chamber encircled by the thin steel plate; and the cross section size of the combustion chamber can be adjusted by rotating a rotation shaft, thereby realizing adjustment of the flame length and area. In order to avoid the thermal shock on the filter body by the flame, a baffle plate a with holes and a baffle plate b with holes are arranged at one end, approaching the filter body, of the combustion chamber; and adjustment on the passing area of the high-temperature gas is realized by adjusting the opposite position of the baffle plate a and the baffle plate b, thereby protecting the filter body. Meanwhile, according to a temperature signal detected by a temperature sensor, an ECU controls on / off of an injection pump power supply as well as positive and negative motion of a stepping motor, thereby realizing automatic control of the adjustment process.

Description

technical field [0001] The invention belongs to the technical field of combustion equipment, in particular to an adjustable flame burner used in the combustion-supporting regeneration process of particle traps. Background technique [0002] The diesel particulate filter is mainly used to treat the exhaust gas of the diesel engine. The filter body in the particulate filter can intercept the carbon particles in the exhaust gas of the diesel engine, so as to achieve the purpose of purifying the exhaust gas of the diesel engine. In recent years, with the introduction of increasingly stringent emission regulations, the research on particulate traps has attracted more and more attention. Among them, the regeneration of particulate traps is the focus of research by various experts and scholars. For example, China published in 2014 Patent CN204041168U. [0003] In the traditional fuel-injection combustion-supporting regeneration system of the particulate filter, the combustion cham...

AI Technical Summary

Problems solved by technology

The patent CN203240580U published in 2013 discloses an adjustable flame burner, which relates to a method for adjusting the ratio of direct current and swirling air through an air regulating valve to achieve adjustable flame length; the patent CN102278760A published in 2011 discloses a Flame adjustable burner, involving the method of adjusting the gas distributor forward or backward to adjust the flame length and luminosity; the adjustment range of the above method is narrow, which is not conducive to the improvement of fuel economy, and the flame is directly injected into the filter of the particulate filter On the body, there will be a strong thermal shock to the filter body, which will affect the service life of the filter body

Images