Diesel generating set with good low-temperature starting performance and low-temperature starting method

A technology for diesel generator sets and starting performance, which is applied in the direction of engine starting, engine components, machines/engines, etc., can solve the problems of difficult starting, instability, and many unstable factors of diesel generator sets, and shorten the running time with load. , the effect of saving maintenance costs and reducing start-up time

Pending Publication Date: 2019-12-03
江苏法尔胜动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the low temperature environment of 0°C to -40°C, due to the low temperature of the air sucked into the engine, it will make it difficult and unstable to start the diesel generator set.
In order to improve low-temperature start-up performance, air heating and ether start-up systems are commonly used in existing diesel generator sets. It is flammable and explosive, so the maintenance cost of the unit in the later stage is relatively high, and there are too many unstable factors
[0005] Secondly, in the low temperature environment, the diesel engine needs to replace the engine oil of different grades according to the temperature to ensure the starting performance of the engine, but it is difficult to operate in the actual use environment, and the generator sets are mostly located in remote areas, due to reasons such as lack of mains electricity or inconvenient transportation. Makes it difficult to change the engine oil

Method used

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  • Diesel generating set with good low-temperature starting performance and low-temperature starting method
  • Diesel generating set with good low-temperature starting performance and low-temperature starting method
  • Diesel generating set with good low-temperature starting performance and low-temperature starting method

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figures 1 to 3 Shown is an embodiment of a diesel generator set with good low-temperature starting performance of the present invention, including a controller of the diesel generator set, and an air intake preheating grid respectively used for heating the intake air of the engine 1 of the diesel generator set Grid D1 and intake fuel air heater D3, DC oil heater D2 for heating the engine oil of the diesel generator set, engine oil temperature sensor R2 for detecting the temperature of the engine oil, and temperature detection for the ambient temperature The air temperature sensor R1, and the air intake preheating grid D1, intake fuel air heater D3, DC engine oil heater D2, engine oil temperature sensor R2, and air temperature sensor R1 are respectively connected to the controller.

[0037]Preferably, the air intake preheating grid D1 is an electric heating type air intake preheating grid, the intake fuel air heater D3 is an electric start type intake fuel air h...

Embodiment 2

[0042] A low-temperature start-up method using the diesel generator set with good low-temperature start-up performance of Embodiment 1 is: determine the heating temperature according to the low-temperature start-up characteristics of the engine 1 and the heating device that needs to be used together to achieve the heating temperature. The heating devices used together are one, two or three of intake fuel air heater D3, intake preheating grid D1, and DC engine oil heater D2.

[0043] As a further improvement to the above low-temperature start-up method, the low-temperature laboratory simulation is performed in advance, and the low-temperature start-up test of the diesel generator set is carried out at an interval of 5°C in the ambient temperature range of 0°C to -40°C. The selection result of the heating device and the selection result of the heating time parameter with the shortest start-up time and the minimum battery power consumption within the temperature range, and the sel...

Embodiment 3

[0053] On the basis of Embodiment 2, further optimize the low-temperature start-up parameters of the diesel generator set at various ambient temperatures as follows:

[0054] At an ambient temperature of -5 to -10°C, only the intake air preheating grid D1 needs to be activated in the heating device to heat the intake air of the engine 1, and the temperature of the intake air preheating grid D1 is controlled by the controller. The heating time is 5S.

[0055] At an ambient temperature of -10 to -15°C, only the intake air preheating grid D1 needs to be activated in the heating device to heat the intake air of the engine 1, and the temperature of the intake air preheating grid D1 is controlled by the controller. The heating time is 15S.

[0056] At an ambient temperature of -15 to -20°C, the heating device needs to start the intake fuel air heater D3 and the intake air preheating grid D1 to heat the intake air of the engine 1, and the controller controls the intake air The heat...

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Abstract

The invention relates to the technical field of diesel generating sets, and discloses a diesel generating set with good low-temperature starting performance and a low-temperature starting method. Thediesel generating set with the good low-temperature starting performance comprises a controller of the diesel generating set, an intake preheating grid and an intake fuel air heater which are respectively used for heating the intake air of an engine of the diesel generating set, a direct-current engine oil heater used for heating the engine oil of the diesel generating set, an engine oil temperature sensor which is used for detecting the temperature of the engine oil and an air temperature sensor used for detecting the temperature of the surrounding environment, and the air inlet preheating grid, the air inlet fuel oil air heater, the direct-current engine oil heater, the engine oil temperature sensor and the air temperature sensor are respectively connected with the controller. Accordingto the present invention, the low-temperature starting performance of the diesel generating set is improved, and meanwhile the later-period unit maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of diesel generating sets, in particular to a diesel generating set with good low-temperature starting performance and a low-temperature starting method. Background technique [0002] Diesel generator set is a kind of power generation equipment with diesel as the main fuel. The diesel engine is used as the driving force to drive the generator to generate electricity, and it is a mechanical device that converts kinetic energy into electrical energy and heat energy. [0003] The diesel generator set in the prior art has the following problems when in use: [0004] First of all, the starting method of the diesel generator set is compression ignition, which uses the high temperature generated by the compressed gas to ignite. However, in the low temperature environment of 0°C to -40°C, due to the low temperature of the air sucked into the engine, it will make it difficult and unstable to start the diesel generat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N19/04F01M5/02F02M31/04F02M31/13F02B63/04
CPCF01M5/021F02B63/04F02M31/042F02M31/13F02N19/04
Inventor 黄翔李万钊杨志勇张培郭鹏蔡博沈锐张旺林顾敬虎盛建兴戴峭峰
Owner 江苏法尔胜动力科技有限公司
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