CN103498713A - Energy-saving noise-lowering safety system of large diesel engine - Google Patents

Energy-saving noise-lowering safety system of large diesel engine Download PDF

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Publication number
CN103498713A
CN103498713A CN201310459849.0A CN201310459849A CN103498713A CN 103498713 A CN103498713 A CN 103498713A CN 201310459849 A CN201310459849 A CN 201310459849A CN 103498713 A CN103498713 A CN 103498713A
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China
Prior art keywords
diesel engine
heat conductive
noise
energy
heat
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CN201310459849.0A
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Chinese (zh)
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CN103498713B (en
Inventor
董兴华
于兴军
张鹏飞
周建峰
赵涛
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Baoji Oilfield Machinery Co Ltd
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Baoji Oilfield Machinery Co Ltd
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Priority to CN201310459849.0A priority Critical patent/CN103498713B/en
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Publication of CN103498713B publication Critical patent/CN103498713B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The invention discloses an energy-saving noise-lowering safety system of a large diesel engine. The energy-saving noise-lowering safety system comprises a heat-energy adjustment portion, a muffling portion and a static removing mechanism, wherein the heat-energy adjustment portion comprises a closed heat conductive pipe, a part of the heat conductive pipe surrounds the outer surface of a waste exhaust pipeline, a part of the heat conductive pipe surrounds the outer surface of an oil-water pipeline and the outer surface of a water tank, the inside of the heat conductive pipe is provided with a flow control valve connected with a controller, the edge of a cylinder body opening of the diesel engine is provided with a temperature sensor, the output end of the temperature sensor is connected with the controller through a signal line, the waste exhaust pipeline is communicated with the inside of a concave-convex muffler, and a short connection line connecting flanges at two ends is arranged on a connection flange of a single air pipeline and the oil-water pipeline. The system improves heat efficiency and protects safety of a human body and equipment to the largest degree.

Description

Large-scale diesel engine energy-saving and noise-reducing safety system
Technical field
The invention belongs to mechanical equipment technical field, be specifically related to a kind of large-scale diesel engine energy-saving and noise-reducing safety system.
Background technique
In use all there is following three aspects: problem in diesel engine, the especially power large-scale diesel engine more than 600KW that industrial field is used:
1) heat utilization rate is low, and supply and demand are unbalanced: the 30%-35% that general diesel engine produces heat energy drains as waste gas, causes this part heat not take full advantage of and waste; On the other hand, require of the cooling water temperature that enters diesel engine cylinder block is stabilized in more than 60 ℃ more, needs a large amount of heat energy heating water temperatures.Cold day low-load operation, especially diesel engine is unshielded while being subject to wind, and the body operating temperature can be lower, at this temperature, works for a long time, do not make the power equipment that any protection can damage diesel engines.
2) operating noise is large: diesel engine, due to the deficiency in smoke-ejecting pipe design, causes local location easily to produce the gas whirlpool, hinders the discharge of gas, and Air Flow and smoke evacuation tube chamber wall friction and then produce very large noise allow people's endurable.
3) electrostatic problem is more outstanding: the diesel engine pipeline can produce static because of flow of fluid and pipe friction in when work, and then at resistance, minimum place may produce sparking, causes certain potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of large-scale diesel engine energy-saving and noise-reducing safety system, solved the problem that the heat utilization rate existed in the prior art is low, exhaust sound large, local location gathers static.
The technical solution adopted in the present invention is, a kind of large-scale diesel engine energy-saving and noise-reducing safety system, comprise Thermoregulation, noise reduction and static eliminating machine three parts,
Thermoregulation partly, comprises closed heat conductive tube, and the part of heat conductive tube is looped around the exhaust emission tube road outer surface be communicated with diesel engine cylinder block, the part of heat conductive tube is looped around the outer surface of oil-water pipeline and water tank; Flow control valve is installed in heat conductive tube, and flow control valve is connected with controller; Be provided with the probe of temperature transducer in the diesel engine cylinder block opening's edge, the temperature transducer output terminal is connected by signaling line with controller.
Large-scale diesel engine energy-saving and noise-reducing safety system of the present invention, its characteristics also are:
Noise reduction partly, is communicated with lenticular baffler in the exhaust emission tube road, and lenticular baffler adopts variable cross section concave-convex type profile.
The static eliminating machine is, at the adpting flange place of single gas path pipe and profit pipeline, is provided with the jumper that connects two end flange, and all jumpers adopt annular Placement or the final ground connection of radial pattern Placement successively.
The invention has the beneficial effects as follows, guarantee to protect to greatest extent the safety of the person and equipment when improving utilization efficiency, innovative point is mainly based on following 3 points:
1) introducing of heat conduction balanced controls is applied to the heat energy in waste gas in cooling (heating) system, by the control to velocity of medium in heat conductive tube, stablizes the cylinder of diesel engine temperature.
2) consider that the Air Flow characteristics reset the exhaust duct profile, guarantee the purpose that reduces exhaust resistance, stable air flow velocity, reduces noise.
3) according to the pipeline rout characteristics, connect and be connected the electrical grounding net mode combined with radioactivity by annular, static guiding is walked, reduce potential safety hazard.
The accompanying drawing explanation
Fig. 1 is the Thermoregulation of apparatus of the present invention and the structural representation of noise reduction part;
Fig. 2 is the static eliminating machine local location short circuit schematic diagram in apparatus of the present invention;
Fig. 3 is static eliminating machine in apparatus of the present invention short circuit schematic diagram at system pipeline.
In figure, 1. lenticular baffler, 2. heat conductive tube, 3. heat conduction balanced controls, 4. static eliminating machine, 5. temperature transducer, 6. exhaust emission tube road, 7. diesel engine cylinder block, 8. oil-water pipeline, 9. water tank, 10. jumper.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The structure of apparatus of the present invention is, comprises Thermoregulation part, noise reduction part and static eliminating machine 4 three parts,
With reference to Fig. 1, Thermoregulation partly, comprises closed heat conductive tube 2, and the part of heat conductive tube 2 is looped around exhaust emission tube road 6 outer surfaces that are communicated with diesel engine cylinder block 7, the part of heat conductive tube 2 is looped around the outer surface of oil-water pipeline 8 and water tank 9;
In heat conductive tube 2, flow control valve is installed, flow control valve is connected with controller, and flow control valve forms heat conduction balanced controls 3 together with controller; Be provided with the probe of temperature transducer 5 in diesel engine cylinder block 7 opening's edges, temperature transducer 5 output terminals are connected by signaling line with the controller in heat conduction balanced controls 3.
Heat conduction balanced controls 3(is containing temperature transducer 5), the main speed of controlling the velocity of medium in heat conductive tube 2 by flow control valve, the effect that realizes regulating heating (cooling) also plays thermoregulator effect when improving heat utilization rate.
With reference to Fig. 1, noise reduction partly, at exhaust emission tube road 6(near exit position) be communicated with lenticular baffler 1.Lenticular baffler 1 adopts variable cross section concave-convex type profile, and suction port one end is connected with the relief opening of diesel engine cylinder block 7, and air outlet one end is connected with exhaust emission tube road 6.Lenticular baffler 1 causes that according to pipeline section sudden change acoustic impedance changes, and makes the partial noise reflection, and then sound wave interferes mutually, thereby reduces to the external radiation noise.
With reference to Fig. 2, Fig. 3, static eliminating machine 4 is, static eliminating machine 4 on single pipeline by adpting flange joint (or joint of joint) both sides short circuit, and at termination ground connection (PE); Simultaneously, static eliminating machine 4 adopts the annular connection to be connected the mode combined with radioactivity in whole pipe-line system, equipotential is made to an integral body, simultaneously by terminal ground connection (PE).
Be connected with jumper 10 between the abutted flange of 1, No. 2 ends of fuel pipe of diesel engine, be connected with jumper 10 between the abutted flange of 1, No. 2 ends of former oil pipe, be connected with jumper 10 between the abutted flange of 1, No. 2 ends of liquefaction gas pipe, all jumpers 10 adopt annular Placement or the final ground connection of radial pattern Placement successively, form the total static eliminating machine 4 of the present invention.
The working principle of apparatus of the present invention is:
1) improve utilization efficiency of heat energy.Take heat conduction balanced controls 3 as main, the one, by temperature transducer 5, it is built into the cylinder body water inlet and detects water temperature, and by result feedback return device body; The 2nd, the controller of heat conduction balanced controls 3, it is according to the flow velocity of the feedback control internal liquid medium of temperature transducer; The 3rd, heat conductive tube 2, the part of heat conductive tube 2 is wrapped in exhaust emission tube road 6 outer surfaces, by heat exchange method, the heat circulation in waste gas is applied in heating (cooling) system (absorption heat), another part of heat conductive tube 2 is wrapped in oil-water pipeline 8 and water tank 9 outer surfaces simultaneously, by endless form, the heat energy obtained is applied to interior media heating or cooling (release heat), for heating (or cooling) its interior media, guarantee the temperature that normal operation is required.
Because heat exchange is that a relative dynamic process (when in heat conductive tube, medium temperature is higher than heated object, is the process of heating; When in heat conductive tube, medium temperature is lower than heated object, cooling process), so also play thermoregulator effect when improving heat utilization rate: when the temperature in heat conductive tube cross-section area and exhaust emission tube road is certain value (or amplitude of variation is little), in heat conductive tube, the temperature of flowing medium height just depends on the speed of flow velocity: when temperature is too low, this device just reduces the temperature that flow velocity improves heating (water tank and pipeline); When excess Temperature, it just improves the temperature that flow velocity reduces (water tank and pipeline).
2) significantly abate the noise.As can be seen from Fig. 1, lenticular baffler 1 is concavo-convex alternate shape successively, the artificial pipeline section sudden change degree that increases, adopt the structure of " lenticular baffler ", utilize the sound transmission characteristic, i.e. pipeline section sudden change causes that acoustic impedance changes, and makes the partial noise reflection, and then sound wave interferes mutually, thereby reduce to the external radiation noise.
3) prevent electrostatic accumulation.Move towards characteristics according to pipeline the electrical grounding net is set.On single pipeline, adopt jumper 10 by flange both sides short circuit, and termination ground connection (PE) (referring to Fig. 2); Carry out the annular connection and be connected the mode combined with radioactivity in pipe-line system, equipotential is made to an integral body, by certain Safety Redundancy, guarantee earthing effect, simultaneously by terminal ground connection (PE), guarantee not have static focus (referring to Fig. 3).Guarantee to be led away in time because of the static that flow of fluid and pipe friction produce, reduce unsafe risk.
The working procedure of apparatus of the present invention is, before starting diesel engine, first between diesel engine cylinder block smoke exhaust port and exhaust emission tube road 6, lenticular baffler 1 is connected, heat conductive tube 2 is connected and puts in place according to (Fig. 1) with heat conduction balanced controls 3, according to the diesel engine different model, the running parameter of heat conduction balanced controls 3 is arranged in prespecified range simultaneously; Static eliminating machine 4 is moved towards to characteristics according to pipe-line system and carry out the annular mode combined that is connected with radioactivity that connects, equipotential is made to an integral body, simultaneously by terminal ground connection (PE), finally, complete again the insulation detection of heat conductive tube 2 and the ground connection of heat conduction balanced controls 3 and detect, just can use.
Apparatus of the present invention, effective to all diesel engines, applicable equally to the machine that uses liquefaction gas.

Claims (3)

1. a large-scale diesel engine energy-saving and noise-reducing safety system, its characteristics are: comprise Thermoregulation part, noise reduction part and static eliminating machine (4) three parts,
Thermoregulation is partly, comprise closed heat conductive tube (2), the part of heat conductive tube (2) is looped around exhaust emission tube road (6) outer surface be communicated with diesel engine cylinder block (7), the part of heat conductive tube (2) is looped around the outer surface of oil-water pipeline (8) and water tank (9); In heat conductive tube (2), flow control valve is installed, flow control valve is connected with controller; Be provided with the probe of temperature transducer (5) in diesel engine cylinder block (7) opening's edge, temperature transducer (5) output terminal is connected by signaling line with controller.
2. large-scale diesel engine energy-saving and noise-reducing safety system according to claim 1, its characteristics are: described noise reduction is partly, be communicated with lenticular baffler (1) in exhaust emission tube road (6), lenticular baffler (1) adopts variable cross section concave-convex type profile.
3. large-scale diesel engine energy-saving and noise-reducing safety system according to claim 1, its characteristics are: described static eliminating machine (4) is, adpting flange place at single gas path pipe and profit pipeline, be provided with the jumper (10) that connects two end flange, all jumpers (10) adopt annular Placement or the final ground connection of radial pattern Placement successively.
CN201310459849.0A 2013-09-29 2013-09-29 Large-scale diesel engine energy-saving and noise-reducing security system Expired - Fee Related CN103498713B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310459849.0A CN103498713B (en) 2013-09-29 2013-09-29 Large-scale diesel engine energy-saving and noise-reducing security system

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Application Number Priority Date Filing Date Title
CN201310459849.0A CN103498713B (en) 2013-09-29 2013-09-29 Large-scale diesel engine energy-saving and noise-reducing security system

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CN103498713B CN103498713B (en) 2016-08-17

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117909A (en) * 1987-10-31 1989-05-10 Tsuchiya Mfg Co Ltd Cooling water controller of heat-exchanger
CN2175832Y (en) * 1993-09-11 1994-08-31 李建新 Device for utilizing heat energy of automobile tail-gas
CN1818358A (en) * 2006-03-09 2006-08-16 金安桐 Tailed gas heat recovering and utilizing device of IC engine
CN102042064A (en) * 2009-10-21 2011-05-04 通用汽车环球科技运作公司 Exhaust heat recovery for transmission warm-up
KR20110062015A (en) * 2009-12-02 2011-06-10 현대자동차주식회사 Exhaust heat recovery device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01117909A (en) * 1987-10-31 1989-05-10 Tsuchiya Mfg Co Ltd Cooling water controller of heat-exchanger
CN2175832Y (en) * 1993-09-11 1994-08-31 李建新 Device for utilizing heat energy of automobile tail-gas
CN1818358A (en) * 2006-03-09 2006-08-16 金安桐 Tailed gas heat recovering and utilizing device of IC engine
CN102042064A (en) * 2009-10-21 2011-05-04 通用汽车环球科技运作公司 Exhaust heat recovery for transmission warm-up
KR20110062015A (en) * 2009-12-02 2011-06-10 현대자동차주식회사 Exhaust heat recovery device

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