Novel energy-saving low noise diesel generator set

A diesel generator set, low-noise technology, applied in the direction of engine components, combustion engines, engine frames, etc., can solve the problems of unsatisfactory energy saving and noise reduction effect, and achieve the goal of reducing noise sources, low fuel consumption, and strong sound absorption and sound insulation. Effect

Inactive Publication Date: 2011-09-14
LIUZHOU HENGDA POWER MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above technical solution is: the noise is still at 80dB, and the effect of energy saving and noise reduction is not ideal enough

Method used

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  • Novel energy-saving low noise diesel generator set
  • Novel energy-saving low noise diesel generator set
  • Novel energy-saving low noise diesel generator set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 , figure 2 As shown, the energy-saving and low-noise diesel generator set includes a bottom fuel tank assembly 1, a diesel engine 2 installed on the bottom fuel tank assembly 1 through a shock absorber, and a stepless three-phase generator 3 driven by the diesel engine 2, wherein:

[0026] The oil tank assembly 1 at the bottom of the unit contains the soundproof outer casing 4 of the above components together, and the soundproof outer casing 4 and the side close to the diesel engine 2 have hot gas discharge 9 before the primary muffler 7 and the secondary muffler 8 .

[0027] There is an air inlet 10 on the side of the soundproof outer casing 4 and the side close to the stepless three-phase generator 3 .

[0028] On the side of the stepless three-phase generator 3, there is an electronic control device installation layer 11 above the air inlet 10.

[0029] Above the air inlet 10 , there is a safety emergency stop switch 13 and a control panel 14 on the ...

Embodiment 2

[0033] 5] to [0029] are the same; diesel engine, generator, supercharged intercooler model, line cross-section changes accordingly;

[0034] The performance indicators achieved are: the diesel engine’s calibrated speed is 1000r / min, the power is 100kW, the fuel consumption rate is 206g / kW.h, the noise (at a distance of 1m from the unit) is 62dB, the steady-state voltage adjustment rate is ≤±1%, and the transient voltage Adjustment rate +20%, steady-state frequency adjustment rate ≤5%, transient frequency adjustment rate ≤±10%, no-load voltage setting range ≥(96-105)% Un. Achieved technical parameters: generator rated voltage 400V, rated speed 1000r / min, rated power 80kW, rated frequency 50Hz.

Embodiment 3

[0036] 5] to [0029] are the same; diesel engine, generator, supercharged intercooler model, line cross-section changes accordingly;

[0037] The performance indicators achieved are: the diesel engine’s calibrated speed is 1000r / min, the power is 125kW, the fuel consumption rate is 208g / kW.h, the noise (at a distance of 1m from the unit) is 65dB, the steady-state voltage adjustment rate is ≤±1%, and the transient voltage Adjustment rate +20%, steady-state frequency adjustment rate ≤5%, transient frequency adjustment rate ≤±10%, no-load voltage setting range ≥(96-105)% Un. Achieved technical parameters: generator rated voltage 400V, rated speed 1000r / min, rated power 100kW, rated frequency 50Hz.

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Abstract

The invention discloses a novel energy-saving low noise diesel generator set. The diesel engine power is between 30kw and 130kw and the corresponding generator power is between 20kw and 100kw, the diesel engine is a supercharged intercooled diesel engine of which the rated rotary speed is 1000r/min and the fuel consumption is 205-210g/kw.h, thus obviously saving energy; the exhaust pipe adopts a divided exhaust pipe, 20mm space is reserved between the height of the baffle and the flange plane of the supercharger arranged on the exhaust manifold, thus effectively avoiding the influences on the supercharger efficiency due to excessively high temperature caused by the crossed exhaust gas of the engine; a silenced case body is added to the engine set, a high-performance shock absorber is adopted, an efficient PUR (poly urethane resin) type antiflaming sound absorbing sheet is pasted in the case body and a labyrinth type inlet air mulffer device made from a high-efficiency damping material is adopted to reduce the source of noises. Experimental results show that the energy-saving low noise diesel generator set can operate reliably for a long time with a controllable noise value of 65-70dB(A) at one meter).

Description

Technical field: [0001] The invention relates to a power generating equipment, in particular to a novel energy-saving and low-noise diesel generator set. Background technique: [0002] Electricity plays an important role in industrial and agricultural production and daily life, and the dependence on electricity is increasing; once the power is cut off, it will bring immeasurable losses. With the continuous enhancement of people's awareness of environmental protection and the increasing shortage of energy sources, people's requirements for diesel generators are also increasing. Not only do they require diesel engines to have good power and economy, but they also require lower emissions and noise. The noise of diesel generator sets is a serious environmental pollution, which is extremely harmful to people's physical and mental health. Especially in places with strict environmental noise requirements such as post and telecommunications, hotel buildings, entertainment venues, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B63/04F02M37/00F16M1/00F01N1/24F01N13/02F01N13/08F02B29/04F02M51/04
CPCY02T10/146Y02T10/12
Inventor 黄茂张谭鸿斌韦光明
Owner LIUZHOU HENGDA POWER MACHINERY MFG
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