Explosion-proof electrically controlled EGR system for mine

A mining explosion-proof, EGR cooler technology, applied in the charging system, adding non-fuel substances to the fuel, internal combustion piston engines, etc., can solve the problems of environmental pollution, no exhaust emission treatment device, impact, etc., to reduce emissions , good explosion-proof effect

Active Publication Date: 2015-12-16
成都天地直方发动机有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing domestic mine engine systems do not provide exhaust emission treatment devices and syste...

Method used

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  • Explosion-proof electrically controlled EGR system for mine
  • Explosion-proof electrically controlled EGR system for mine
  • Explosion-proof electrically controlled EGR system for mine

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] The structural diagram of the mine explosion-proof electronically controlled EGR system of the present invention can be found in Figure 1 to Figure 3, mine explosion-proof electronic control EGR system includes EGR cooler 01, intake and exhaust manifold 02 and EGR mixing device 04, EGR cooler 01 is set above the intake and exhaust manifold 02, EGR cooler 01 is equipped with EGR air pipe, Both ends of the EGR cooler 01 are provided with an EGR intake pipe 011 and an EGR exhaust pipe 012 connected to the EGR air pipe, the EGR intake pipe 011 is connected to the exhaust port of the intake and exhaust manifold 02, and the EGR cooler 01 is close to the EGR intake pipe One end of 011 is provided with EGR cooler water inlet 013, and the other end of EGR cooler 01 is provided with EGR cooler water outlet 014; EGR mixing device 04 includes exhaust gas in...

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Abstract

The invention relates to an explosion-proof electrically controlled EGR system for a mine. The EGR system comprises an EGR cooler, an intake and exhaust manifold, an EGR mixing device and an explosion-proof EGR valve, wherein an EGR intake pipe and an EGR exhaust pipe are arranged at the two ends of the EGR cooler respectively; the EGR intake pipe is connected with an exhaust port of the intake and exhaust manifold; the EGR cooler is provided with a water inlet and a water outlet; a waste gas intake port of the EGR mixing device is connected with the EGR exhaust pipe; a mixing gas outlet port of the EGR mixing device is connected with a gas intake port of the intake and exhaust manifold; an explosion-proof EGR valve is connected with the EGR mixing device; the EGR valve is connected with an EGR control unit by a harness; the opening and closing of the explosion-proof EGR valve is controlled by an ECU to control the flow amount of the EGR waste gas; and the EGR control unit is arranged in an explosion-proof electrical control device. The EGR system has good explosion-proof effects, so that the EGR system can be used under the mine, and the exhaust of NOx of an explosion-proof diesel engine can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of mine diesel engine control, in particular to an explosion-proof electronically controlled EGR system for mines. Background technique [0002] Due to the particularity of the underground working environment of coal mines: poor ventilation, it is difficult to discharge the exhaust gas from mining diesel-powered vehicles in time, so it has a great impact on the health of underground workers. With the continuous strengthening of people's awareness of environmental protection, the requirements for the control of harmful emission pollutants from explosion-proof diesel engines are becoming more and more stringent. my country's current MT990-2006 "General Technical Conditions for Mining Explosion-Proof Diesel Engines" stipulates that: under the working conditions specified in MT220, the volume concentration of harmful gas components in the undiluted exhaust of explosion-proof diesel engines: carbon monoxide (CO) ...

Claims

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Application Information

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IPC IPC(8): F02M25/07
CPCY02T10/12
Inventor 汪世伦王大书白雷范江鹏李清韩晓强张福祥
Owner 成都天地直方发动机有限公司
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