Regeneration temperature management control method for combustor DPF system
A technology of regeneration temperature and management control, applied in the direction of fuel injection control, electrical control, engine control, etc., to achieve the effect of improving safety and economy, and reducing development and calibration work
Inactive Publication Date: 2021-02-26
KAILONG HIGH TECH
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[0004] The purpose of the present invention is to solve the problems mentioned above in the background technology section through a burner DPF system regeneration temperature management and control method
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[0020] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some parts related to the present invention are shown in the accompanying drawings but not the whole content. Unless otherwise defined, all technical and scientific terms used herein are related to the technical field of the present invention. The skilled person generally understands the same meaning. The terms used herein are for describing specific embodiments only, and are not intended to limit the present invention.
[0021] Please refer to Figure 1 to Figure 7 As shown, the burner DPF system regeneration temperature management control method in this embodiment includes: the regeneration temperature change rate limiter calculates the...
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The invention discloses a regeneration temperature management control method for a combustor DPF system. The method comprises the steps that a regeneration temperature change rate limiter calculates atemperature instruction value; a feedforward controller calculates a feedforward control instruction according to the tail gas temperature, the environment temperature and the air mass flow; a closed-loop PID controller calculates a feedback control instruction; an electromagnetic pump frequency calculation module calculates an electromagnetic pump driving frequency value according to a calculation value obtained by adding the feedback control instruction and the feedforward control instruction; and a high-temperature protection module performs high-temperature protection control according toactual carrier front and back temperatures. The method is used for accurately controlling the DPF fuel oil injection amount of a combustor, real-time closed-loop control is conducted on the temperature of a DOC carrier and the temperature of a DPF carrier, when the temperature of the DPF carrier changes, the fuel oil injection amount can be increased or decreased in time, and safety protection isconducted on the over-temperature condition of the DPF carrier. The method is suitable for an in-use DPF refitting system product which does not depend on diesel engine running state information.
Description
technical field [0001] The invention relates to the technical field of DPF for controlling particulate matter pollutants after treatment of vehicle and off-road diesel engine exhaust, in particular to a regeneration temperature management and control method for a burner DPF system. Background technique [0002] A diesel particulate filter (Diesel Particulate Filter, DPF) is a ceramic filter installed in the diesel engine exhaust system, which can capture particulate emissions before they enter the atmosphere, such as diffusion precipitation, inertial precipitation or linear interception, It can effectively purify 70% to 90% of the particles in the exhaust gas, and is one of the most effective and direct methods for purifying diesel engine particulate matter. In DPF carrier filtration, the accumulation of particles in the particle filter will cause the exhaust back pressure of the diesel engine to increase. When the pressure difference between the front and rear of the DPF re...
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IPC IPC(8): F01N9/00F01N3/025F02D41/02F02D41/14
CPCF01N9/002F01N9/005F01N3/025F02D41/027F02D41/1477F02D41/1401F02D2041/1433F02D2041/141F02D2041/1409Y02T10/40
Inventor 朱磊臧志成陈鹏卢凯许晓巍
Owner KAILONG HIGH TECH