Gas engine system with detection function of abnormality occurrence of gas pressure detection mechanism

Abstract

In a gas engine system, a control unit (6) comprises: a first determination section (102) for determining, as a first determination, whether or not the gas pressure is a low pressure of less than a predetermined pressure on the basis of the pressure information, while the control device recognizes that the gas valve (4) is closed; a second determination section (105) for determining, as a second determination, whether or not the gas pressure is a high pressure of equal to or more than the predetermined pressure on the basis of the pressure information, while the control device recognizes that the gas valve (4) is open, if it is determined that the gas pressure is the low pressure in the first determination; a start-up section (101) for performing the first determination and the second determination before start of operation of the gas engine when receiving the start-up command; and an operation start section (110) for opening the gas valve (4) and starting the operation of the gas engine, if it is determined that the gas pressure is the low pressure in the first determination, and if it is determined that the gas pressure is the high pressure in the second determination.

Description

technical field [0001] The invention relates to a gas engine system, which comprises: a gas engine; a gas path, which supplies fuel gas to the gas engine; a gas valve, which opens and closes the gas path; a control device, the control device a control gas valve; a pressure sensor that outputs pressure information corresponding to the gas pressure in a gas path located on the downstream side of the gas valve; and a transmission mechanism that transmits the pressure information from the pressure sensor to the control device. Background technique [0002] Conventionally, in order to detect the pressure in a gas pipe that supplies gas to a gas engine, a pressure sensor is provided on the gas pipe. of Patent Document 1 figure 2 An example of an existing gas pressure detection device is shown in . The air pipe is sequentially arranged with: a pressure sensor for detecting the pressure in the air pipe, an air valve for opening and closing the air pipe, and a gas engine. The...

AI Technical Summary

Problems solved by technology

This is because, if the gas engine is operated continuously in a state where the gas pressure drops, the pressure in the gas pipe will become a negative pressure. Provides an opening for gases to mix into the trachea, creating an undesirable condition

Images