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Starting control method, device and equipment for gas engine

A gas engine, gas pressure technology, applied in the field of control, can solve the problem that the gas engine cannot be started normally

Active Publication Date: 2021-06-15
WEICHAI POWER CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the content of flammable components changes, or the gas engine has a mechanical failure, it is easy to cause the gas engine to fail to start normally

Method used

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  • Starting control method, device and equipment for gas engine
  • Starting control method, device and equipment for gas engine
  • Starting control method, device and equipment for gas engine

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Embodiment Construction

[0057] In order to facilitate understanding and explanation of the technical solutions provided by the embodiments of the present application, the background technology of the present application will first be described below.

[0058] After studying the start-up process of the traditional gas engine, the inventor found that when the concentration of the gas fuel in the gas engine changes, or when the gas engine has an accidental mechanical failure, the gas fuel in the gas engine may be incompletely combusted Or without combustion, the gas engine cannot be started normally, which in turn leads to an increase in the concentration of the gas fuel in the cylinder. If the subsequent gas engine is repeatedly started, the concentration of the gas fuel in the cylinder will further increase, and finally the gas engine cannot be started.

[0059] Based on this, an embodiment of the present application provides a start-up control method of a gas engine. By starting the gas engine, the o...

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Abstract

The invention discloses a starting control method, device and equipment for a gas engine. The method comprises the steps that the gas engine is started, and the operation parameters of the gas engine and the maximum value of the rotating speed of the gas engine are obtained; when it is judged that the gas engine does not have an abnormal injection fault through the operation parameters, whether the gas engine is successfully started or not is determined according to the size relation between the maximum value of the rotating speed of the gas engine and a first threshold value, and purging of the gas in the gas engine is correspondingly triggered according to the number of times that the gas engine is not successfully started; on the basis of eliminating a gas fuel problem caused by the abnormal injection fault, when multiple times of starting fails, the gas fuel in the gas engine can be purged in time. The concentration of the gas fuel in the gas engine is ensured to be within the range of sufficient combustion, and the judgment accuracy of the abnormal problem of the gas engine is improved.

Description

technical field [0001] The present application relates to the field of control, in particular to a start control method, device and equipment of a gas engine. Background technique [0002] A gas engine refers to an internal combustion engine that uses combustible gas as fuel. Gas engines can use combustible gases such as natural gas, biogas, landfill gas, and gas as fuel to provide mechanical energy to the outside. [0003] The content of combustible components in gaseous fuel is greatly affected by the environment. When the content of combustible components changes, or there is a mechanical failure in the gas engine, it is easy to cause the gas engine to fail to start normally. Contents of the invention [0004] In view of this, the embodiments of the present application provide a start-up control method, device, and equipment for a gas engine, which can perform gas purging on a gas engine that cannot be started, and improve the start-up performance of the gas engine. ...

Claims

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Application Information

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IPC IPC(8): F02D41/06F02D41/22F02D19/02
CPCF02D41/062F02D41/0027F02D41/22F02D2041/224Y02T10/40
Inventor 曹石秦涛王瑞明齐志成
Owner WEICHAI POWER CO LTD
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