Diesel oil burning power system with diesel engine adopting alcohol ether fuel to burn

A technology for power systems and diesel engines, applied in combustion engines, machines/engines, mechanical equipment, etc., can solve problems such as increased maintenance costs, difficulty in meeting power requirements, and low diesel replacement rate, and achieve cost savings, stable and reliable startup and Operation, the effect of reducing pollution

Inactive Publication Date: 2017-03-22
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages have two aspects: one is that as mentioned above, when gas is used as the main fuel, the mechanical power of the gas decreases, which is difficult to meet the power requirements of industrial applications; The transformation of the diesel engine is relatively large, which changes the operating characteristics of the high compression ratio compression ignition of the diesel engine, which is also difficult for customers to accept
The ignition method of this device still adopts the diesel compression ignition method, the diesel substitution rate is low, and there are high requirements on the airtightness of the combustion chamber of the diesel engine cylinder block, as well as the material properties, mechanical properties and thermal properties of the piston, connecting rod and crankshaft moving parts.
The problem with this device is that it has a great impact on the power of the original machine, and due to the low substitution rate of diesel, it is difficult to maximize the economy and environmental protection
In addition, as the service life of the diesel engine increases, the reliability decreases and the maintenance cost gradually increases

Method used

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  • Diesel oil burning power system with diesel engine adopting alcohol ether fuel to burn
  • Diesel oil burning power system with diesel engine adopting alcohol ether fuel to burn
  • Diesel oil burning power system with diesel engine adopting alcohol ether fuel to burn

Examples

Experimental program
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Effect test

Embodiment

[0043] The system of the present invention has carried out a bench test on a 100-kilowatt six-cylinder diesel engine to verify the industrial feasibility. In the experiment, at a certain speed, the engine power change under the action of a igniter was tested with a high proportion of methanol alcohol ether fuel. The performance parameters and experimental data of the diesel engine used are shown in Table 1 and Table 2 respectively, and the power curve of the engine DMEV ignition start is shown in the attached figure 2 .

[0044] Table 1 Diesel engine technical parameter table

[0045]

[0046] Table 2 Bench experiment data table

[0047]

[0048]

[0049] *The liquid alcohol ether fuel in Table 2 is a mixture of methanol and dimethyl ether with a mass ratio of 90:10.

[0050] The power curve of engine DMEV ignition start is as follows: figure 2 shown. It can be seen from the figure that the engine (six-cylinder diesel engine) starts slowly and the output power ...

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PUM

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Abstract

The invention discloses a diesel oil burning power system with a diesel engine adopting alcohol ether fuel to burn. The system comprises the diesel engine (1), a liquid alcohol ether fuel storing tank (2) and an ignition agent storing tank (3). An ignition agent in the ignition agent storing tank is fed into an air cylinder of the diesel engine through an ignition agent pipeline for compression ignition, liquid alcohol ether fuel in the liquid alcohol ether fuel storing tank is sprayed into the air cylinder through an alcohol ether fuel supply pipeline (21) so as to burn under ignition of the ignition agent, and therefore, the diesel engine is started and diesel oil is completely replaced. As for high-proportion methanol-based alcohol ether fuel which is usually not inclined to compression ignition, an inflaming mode is not adopted for ignition, so that large change of the structure of the diesel engine is avoided; and low-proportion mix-burning is not adopted either, and the ignition agent is subjected to compression ignition in the air cylinder innovatively so as to ignite the alcohol ether fuel, so that the diesel oil is completely replaced with the alcohol ether fuel, the cost is reduced, pollution is reduced, loss of the power performance is avoided, and the diesel engine can stably and reliably start and operate.

Description

technical field [0001] The invention relates to the field of fuel substitution for diesel engines, in particular to a system in which alcohol ether fuels are used in diesel engines to completely replace diesel oil. Background technique [0002] As a new type of alternative energy, alcohol ether fuel, especially alcohol ether fuel with a high proportion of methanol, has become an ideal product for petroleum replacement due to its superior performance such as "low price, high economy, strong power, clean and environmental protection". Since methanol is easy to ignite, the high-proportion methanol-alcohol-ether fuel replacement technology in ignition gasoline engines has been relatively mature and has been popularized and applied. In comparison, diesel is a fuel that is more scarce than gasoline, and diesel engines have higher thermal efficiency due to their high compression ratios. Therefore, it is more challenging and more practical to develop alcohol ether fuel replacement t...

Claims

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Application Information

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IPC IPC(8): F02B7/06
Inventor 钟振成李永龙翁力贾昊霖
Owner CHNA ENERGY INVESTMENT CORP LTD
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