Automatic collecting and metering system for fuel oil discharge amount of diesel engine

An automatic collection and metering system technology, which is applied in the field of automatic collection and metering systems and marine low-speed diesel engines, can solve the problems of diesel engine fuel consumption data deviation, valves that cannot be sealed, and time delays, so as to eliminate potential safety hazards, improve metering accuracy, and maintain good performance. The effect of fault tolerance

CN111397905AInactive Publication Date: 2020-07-10CSSC MES DIESEL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-07-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

An automatic collecting and metering system for a fuel oil discharge amount of a diesel engine comprises a discharge valve, a fuel oil discharge tank, a metering valve, a metering barrel, a controllerand a touch screen, wherein the upstream of the discharge valve is connected with a fuel oil discharge pipe of the diesel engine; the upstream of the fuel oil discharge tank is connected with the discharge valve, and is used for collecting discharged fuel oil; the upstream of the metering valve is connected with the fuel discharge pipe; opening and closing states of the metering valve and openingand closing states of the discharge valve are always in reverse relation; the upstream of the metering barrel is connected with the metering valve, and is used for collecting discharged fuel oil within preset time; the controller is respectively connected with the discharge valve and the metering valve, and is used for collecting and processing input signals, controlling opening and closing of the discharge valve and the metering valve and metering the discharged fuel oil collected by the metering barrel; and the touch screen is connected with the controller, provided with an electronic visual interface and used for system operation of man-machine interaction by operators. According to the automatic collecting and metering system, automatic control is realized, the measurement precision is improved, the potential safety hazard caused by leakage is avoided, and the automatic collecting and metering system has the advantages of low error-tolerant rate and simple operation.
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Description

Technical field

[0001] The invention relates to a marine low-speed diesel engine with fuel discharge from a fuel injector, in particular to an automatic collection and metering system for the fuel discharge of a diesel engine, belonging to the technical field of diesel engines. Background technique

[0002] As we all know, fuel costs account for a large proportion of shipping costs. When fuel prices are high, they can even reach more than 50%. Therefore, even 1 gram of fuel consumption will affect the economy of ship operations. At the same time, fuel consumption and ship EEDI energy consumption control indicators are closely related, so the fuel consumption per unit power of diesel engines is a very important indicator. All low-speed marine diesel engines are required to measure the actual fuel consumption of each power point of the diesel engine in the bench test before leaving the factory. See figure 1 , The fuel system of a diesel engine includes three sub-systems: the fuel ...

Examples

Embodiment Construction

[0039] The following describes the present invention in detail with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention should not be limited thereby.

[0040] See figure 2 , The automatic collection and metering system for the diesel engine fuel drain amount includes a drain valve 4, a fuel drain tank 3, a metering valve 5, a metering barrel 6, a controller 2 and a touch screen 1.

[0041] The relief valve 4 is a solenoid valve, and the upstream is connected to a fuel drain pipe of the diesel engine, and the downstream is connected to the fuel drain tank 3 through a pipe. The metering valve 5 is an electromagnetic valve, and the upstream is connected to a fuel drain pipe of the diesel engine, and the downstream is connected to the metering barrel 6 through a pipeline. When the diesel engine is moving, during the normal non-metering period, the relief valve 4 remains normally open, and the metering valve 5 remains normally ...