CN111005800A - A supercharger device with built-in waste gas bypass system - Google Patents
A supercharger device with built-in waste gas bypass system Download PDFInfo
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- CN111005800A CN111005800A CN201911178851.4A CN201911178851A CN111005800A CN 111005800 A CN111005800 A CN 111005800A CN 201911178851 A CN201911178851 A CN 201911178851A CN 111005800 A CN111005800 A CN 111005800A
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- Prior art keywords
- exhaust gas
- waste gas
- cavity
- gas inlet
- gas bypass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
一种内置废气旁通系统的增压器装置，应用于船用低速柴油机，包括废气进口内腔、废气进口外腔、蝶阀、节流孔板、废气旁通管路和废气出口腔体；其中，废气进口内腔、废气旁通管路、废气进口外腔与所述废气出口腔体依次连通形成废气旁通路径，蝶阀将该废气进口内腔与废气旁通管路隔开且与柴油机控制系统连接，废气进口内腔与废气出口腔体连通，形成常规废气路径，废气进口内腔、废气进口外腔、废气旁通管路和废气出口腔体集成在废气涡轮增压器中；蝶阀由柴油机控制系统的信号控制开度，以控制废气旁通路径的通断和闭合开度，从而实现部分废气旁通功能。本发明达到了安装简易、维修方便、提高效率的目的。
A supercharger device with a built-in exhaust gas bypass system, applied to a marine low-speed diesel engine, includes an exhaust gas inlet inner cavity, an exhaust gas inlet outer cavity, a butterfly valve, a throttle orifice, an exhaust gas bypass pipeline and an exhaust gas outlet cavity; wherein, The exhaust gas inlet inner cavity, the exhaust gas bypass pipeline, the exhaust gas inlet outer cavity and the exhaust gas outlet cavity are sequentially connected to form an exhaust gas bypass path, and the butterfly valve separates the exhaust gas inlet cavity from the exhaust gas bypass pipeline and is connected with the diesel engine control system The exhaust gas inlet cavity is connected with the exhaust gas outlet cavity to form a conventional exhaust gas path. The exhaust gas inlet cavity, the exhaust gas inlet outer cavity, the exhaust gas bypass pipeline and the exhaust gas outlet cavity are integrated in the exhaust gas turbocharger; the butterfly valve is formed by the diesel engine. The signal of the control system controls the opening degree to control the on-off and closing opening degree of the waste gas bypass path, so as to realize the partial waste gas bypass function. The invention achieves the purposes of simple installation, convenient maintenance and improved efficiency.
Description
Technical Field
The invention relates to marine diesel engine equipment, in particular to a supercharger device with a built-in waste gas bypass system, and belongs to the technical field of diesel engines.
Background
With the development of the ship industry and the emergence of various environmental protection laws and regulations, the structure of a low-speed diesel engine of a ship continuously develops towards the directions of long stroke, low rotating speed, low power and low unit oil consumption, and the exhaust gas bypass technology is one of the effective methods for reducing low-load and partial-load oil consumption which are frequently used at present.
Referring to fig. 1, the marine low speed diesel engine includes a scavenging manifold 2 and an exhaust manifold 4. When the diesel engine is running, the exhaust gas from the exhaust manifold 4 enters the exhaust gas turbocharger 1 on the diesel engine to do work and then is discharged to the exhaust gas boiler 7. Part of exhaust gas generated by the diesel engine is bypassed to an exhaust gas boiler 7 without passing through the exhaust gas turbocharger 1, and a bypass system is required to add branch pipes on an exhaust manifold 4 of the diesel engine, and a waste gas bypass valve 5, a throttle orifice 6 and the like are arranged on a pipeline. However, the existing bypass system is high in position in the engine room, installation, debugging and maintenance are inconvenient, and vibration of the valve body and the piping system is difficult to control.
Disclosure of Invention
The invention aims to overcome the defects of the structure of the waste gas bypass system of the existing marine low-speed diesel engine, and provides a supercharger device with a built-in waste gas bypass system.
Based on the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a booster device of built-in exhaust gas bypass system, is applied to marine low-speed diesel engine, includes orifice plate, its characterized in that: the supercharger device also comprises an exhaust gas inlet inner cavity, an exhaust gas inlet outer cavity, a butterfly valve, an exhaust gas bypass pipeline and an exhaust gas outlet cavity; the waste gas inlet inner cavity is communicated with the waste gas inlet outer cavity through the waste gas bypass pipeline, the waste gas inlet outer cavity is communicated with the waste gas outlet cavity to form a waste gas bypass path, and the butterfly valve is arranged between the waste gas inlet inner cavity and the waste gas bypass pipeline, separates the waste gas inlet inner cavity from the waste gas bypass pipeline and is connected with a diesel engine control system; the waste gas inlet inner cavity is simultaneously communicated with the waste gas outlet cavity to form a conventional waste gas path; the waste gas inlet inner cavity, the waste gas inlet outer cavity, the waste gas bypass pipeline and the waste gas outlet cavity are integrated in the waste gas turbocharger;
the butterfly valve controls the opening degree by signals of a diesel engine control system to control the on-off and closing opening degree of the waste gas bypass path, so that the function of partial waste gas bypass is realized.
Further, the butterfly valve is provided with a position indicator.
Further, the orifice plate is installed in the exhaust gas bypass line.
Further, the flow rate of the bypass exhaust gas part is determined by the opening degree of the butterfly valve realized according to a control signal of a diesel engine control system.
Compared with the existing low-speed diesel engine waste gas bypass system for the ship, the invention has the beneficial effects that:
1. the invention integrates the waste gas bypass system and the supercharger, can be installed in place at one time, does not need additional pipeline arrangement and installation work, optimizes the structure, saves the installation space and simplifies the operation.
2. The maintenance and overhaul are convenient, and the space for maintenance and overhaul is sufficient and the operation is easy.
Drawings
Fig. 1 is a diagram of a conventional exhaust system.
Fig. 2 is a schematic diagram of the present invention.
In the figure, 1 is an exhaust gas turbocharger, 2 is a scavenging manifold, 4 is an exhaust manifold, 5 is a waste gas bypass valve, 6 is a throttle orifice plate, 7 is an exhaust gas boiler, 10 is an exhaust gas inlet outer cavity, 11 is a waste gas bypass pipeline, 12 is an exhaust gas inlet inner cavity, 13 is a butterfly valve, and 14 is an exhaust gas outlet cavity.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific examples, but the scope of the present invention is not limited to the examples described below. All equivalent changes and modifications made according to the contents of the present specification belong to the technical scope of the present application.
Referring to fig. 2, the supercharger device with an internal exhaust gas bypass system according to the present invention is applied to a marine low-speed diesel engine. The supercharger device comprises an exhaust gas inlet inner cavity 12, an exhaust gas inlet outer cavity 10, a butterfly valve 13, a throttle orifice plate 6, an exhaust gas bypass pipeline 11 and an exhaust gas outlet cavity 14.
The waste gas bypass pipeline 11 connects the waste gas inlet inner cavity 12 with the waste gas inlet outer cavity 10, and the waste gas inlet outer cavity 10 is connected with the waste gas outlet cavity 14, that is, the waste gas inlet inner cavity 12, the waste gas bypass pipeline 11, the waste gas inlet outer cavity 10 and the waste gas outlet cavity 14 are sequentially connected to form a waste gas bypass path. The orifice plate 6 is installed in the exhaust gas bypass line 11. The butterfly valve 13 is provided with a position indicator, is arranged between the waste gas inlet inner cavity 12 and the waste gas bypass pipeline 11, and separates the waste gas inlet inner cavity 12 from the waste gas bypass pipeline 11; the butterfly valve 13 is connected with a diesel engine control system, and the opening degree of the butterfly valve is controlled by a signal of the diesel engine control system, so that the on-off and the closing opening degree of the exhaust gas bypass path are controlled, and the function of partial exhaust gas bypass is realized. The waste gas inlet chamber 12 is also in communication with the waste gas outlet chamber 14 to form a conventional waste gas path.
The exhaust gas inlet inner chamber 12, the exhaust gas inlet outer chamber 14, the exhaust gas bypass line 11 and the exhaust gas outlet chamber 14 are integrated in the structure of the exhaust gas turbocharger 1.
The working principle of the supercharger device with the built-in waste gas bypass system is as follows:
the 'conventional exhaust gas path' is characterized in that a butterfly valve 13 with position indication is in a closed state, exhaust gas entering the exhaust gas turbocharger 1 enters a nozzle ring through an exhaust gas inlet inner cavity 12, and is discharged out of the exhaust gas turbocharger 1 from an exhaust gas outlet cavity 14 after acting.
The butterfly valve 13 receives a control signal from a diesel engine control system, the butterfly valve 13 is opened, part of the exhaust gas entering the exhaust gas turbocharger 1 enters the exhaust gas inlet outer cavity 10 through the exhaust gas bypass pipeline 11 and the throttle orifice 6, the part of the exhaust gas does not participate in work, and the part of the exhaust gas together with the exhaust gas after the work is done through the exhaust gas inlet inner cavity 12 is discharged out of the exhaust gas turbocharger 1 from the exhaust gas outlet cavity 14, so that the bypass of part of the exhaust gas is realized. The flow rate of the bypass exhaust gas is determined by the magnitude of the opening of the butterfly valve 13 according to a control signal from the diesel engine control system.
The scope of the invention is not limited to the above embodiments, and any modifications, equivalent substitutions, obvious variations and improvements made by those skilled in the art without departing from the principle and spirit of the invention should fall within the scope of the invention.
Claims (4)
1. The utility model provides a booster device of built-in exhaust gas bypass system, is applied to marine low-speed diesel engine, includes orifice plate, its characterized in that: the supercharger device also comprises an exhaust gas inlet inner cavity, an exhaust gas inlet outer cavity, a butterfly valve, an exhaust gas bypass pipeline and an exhaust gas outlet cavity; the waste gas inlet inner cavity is communicated with the waste gas inlet outer cavity through the waste gas bypass pipeline, the waste gas inlet outer cavity is communicated with the waste gas outlet cavity to form a waste gas bypass path, and the butterfly valve is arranged between the waste gas inlet inner cavity and the waste gas bypass pipeline, separates the waste gas inlet inner cavity from the waste gas bypass pipeline and is connected with a diesel engine control system; the waste gas inlet inner cavity is simultaneously communicated with the waste gas outlet cavity to form a conventional waste gas path; the waste gas inlet inner cavity, the waste gas inlet outer cavity, the waste gas bypass pipeline and the waste gas outlet cavity are integrated in the waste gas turbocharger;
the butterfly valve controls the opening degree by signals of a diesel engine control system to control the on-off and closing opening degree of the waste gas bypass path, so that the function of partial waste gas bypass is realized.
2. The supercharger apparatus of an internal exhaust gas bypass system according to claim 1, wherein: the butterfly valve is provided with a position indicator.
3. The supercharger apparatus of an internal exhaust gas bypass system according to claim 1, wherein: the throttle orifice plate is installed in the waste gas bypass pipeline.
4. The supercharger apparatus of an internal exhaust gas bypass system according to claim 1, wherein: the flow rate of the bypass exhaust gas part is determined by the opening degree of the butterfly valve realized according to a control signal of a diesel engine control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178851.4A CN111005800A (en) | 2019-11-27 | 2019-11-27 | A supercharger device with built-in waste gas bypass system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178851.4A CN111005800A (en) | 2019-11-27 | 2019-11-27 | A supercharger device with built-in waste gas bypass system |
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| CN111005800A true CN111005800A (en) | 2020-04-14 |
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| CN201911178851.4A Pending CN111005800A (en) | 2019-11-27 | 2019-11-27 | A supercharger device with built-in waste gas bypass system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750073A (en) * | 2022-12-22 | 2023-03-07 | 无锡市众辰汽车配件有限公司 | Detachable turbocharger actuator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015033844A1 (en) * | 2013-09-05 | 2015-03-12 | 三菱重工業株式会社 | Turbine, turbocharger, internal combustion engine, and ship |
| CN211900774U (en) * | 2019-11-27 | 2020-11-10 | 上海中船三井造船柴油机有限公司 | Supercharger device with built-in waste gas bypass system |
-
2019
- 2019-11-27 CN CN201911178851.4A patent/CN111005800A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015033844A1 (en) * | 2013-09-05 | 2015-03-12 | 三菱重工業株式会社 | Turbine, turbocharger, internal combustion engine, and ship |
| CN211900774U (en) * | 2019-11-27 | 2020-11-10 | 上海中船三井造船柴油机有限公司 | Supercharger device with built-in waste gas bypass system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750073A (en) * | 2022-12-22 | 2023-03-07 | 无锡市众辰汽车配件有限公司 | Detachable turbocharger actuator |
| CN115750073B (en) * | 2022-12-22 | 2023-11-03 | 无锡市众辰汽车配件有限公司 | Detachable turbocharger actuator |
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Application publication date: 20200414 |
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