Inert gas purging device of dual-fuel engine
A dual-fuel engine, inert gas technology, applied in combustion engines, internal combustion piston engines, engine components, etc., can solve the problem of difficult to observe the operation of the interface parts, affect the normal operation of the dual-fuel engine, increase the workload of installation and maintenance, etc. problems, to reduce installation costs, save installation space, and improve work efficiency.
Pending Publication Date: 2022-03-01
CSSC MARINE POWER
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Problems solved by technology
The above-mentioned interfaces scattered on the natural gas pipelines result in long connecting pipelines, increasing the workload of installation and maintenance, and it is difficult to observe the operation of the interface parts
Once leakage and other failures occur, it is difficult to know directly, which will affect the normal operation of the dual-fuel engine
Method used
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[0020] The present invention will be further described below in conjunction with drawings and embodiments.
[0021] Such as Figure 1 to Figure 6 As shown, the present invention includes a connecting flange 1, a one-way valve 2, a one-way valve gland 3 and a pressure sensor assembly 4, and the right end of the connecting flange 1 extends axially from the upper platform 11, the central platform 12 and the side The inclined platform 13, the left end of the double-wall pipe unit 10 is fixed on the right end of the connecting flange 1, and the bottom of the double-wall pipe unit 10 is fixed on the frame through the installation base 20. The inert gas connecting pipe assembly 6 is fixed on the top of the upper platform 11, the right end of the one-way valve gland 3 is fixed on the center platform 12 by four fastening screws 31, and the left end of the one-way valve gland 3 extends into the center hole of the center platform 12 In 121 , the one-way valve 2 is embedded in the left e...
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The invention discloses a dual-fuel engine inert gas purging device which comprises a connecting flange, a one-way valve, a one-way valve gland and a pressure sensor assembly, one end of the connecting flange axially extends out of an upper platform, a center platform and a side inclined platform, and one end of a double-wall pipe unit is fixed to the other end of the connecting flange. The inert gas connecting pipe assembly is fixed to the top end of the upper platform, one end of the one-way valve gland is fixed to the center platform, and the one-way valve is embedded into the other end of the one-way valve gland. The pressure sensor assembly is fixed on one side of the side inclined platform, one end of the negative pressure air source input pipe is fixedly connected with the other end of the connecting flange, and the negative pressure air source input pipe is communicated with an outer wall pipe of the double-wall pipe unit through a negative pressure air source channel. The dual-fuel engine is compact in structure, integration, standardization and modularization are achieved, the installation work efficiency is improved, the installation cost is reduced, the operation efficiency of mutual switching between a fuel oil mode and a fuel gas mode of the dual-fuel engine is improved, and safe operation of the dual-fuel engine is ensured.
Description
technical field [0001] The invention relates to a device for safe operation of a dual-fuel engine, in particular to a device for purging natural gas pipelines with inert gas, and belongs to the technical field of internal combustion engine safety. Background technique [0002] Dual-fuel engines can run on both oil and natural gas, and can switch between the two fuels. When the dual-fuel engine uses natural gas, its emission of particulate matter is almost zero, NO X , CO and HC emissions are also significantly reduced, which can significantly improve the air quality, and the environmental protection effect is remarkable, and its application is becoming more and more extensive. Since natural gas is a gas, it is easy to stay in the gas supply pipeline, and there is a risk of explosion when it encounters an open flame. Therefore, during the operation of the dual-fuel engine, especially before switching between the fuel mode and the gas mode, it is necessary to use an inert ga...
Claims
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IPC IPC(8): F02B77/04F02B77/08F02M21/02
CPCF02B77/04F02B77/08F02M21/0293F02M21/0215F02B2077/045Y02T10/30
Inventor 李俊鹏黄念劬丁乐中徐文罗辉周茜陈建国
Owner CSSC MARINE POWER