CN202309602U - Diesel generator energy-saving system - Google Patents
Diesel generator energy-saving system Download PDFInfo
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- CN202309602U CN202309602U CN2011204479271U CN201120447927U CN202309602U CN 202309602 U CN202309602 U CN 202309602U CN 2011204479271 U CN2011204479271 U CN 2011204479271U CN 201120447927 U CN201120447927 U CN 201120447927U CN 202309602 U CN202309602 U CN 202309602U
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Abstract
The utility model discloses a diesel generator energy-saving system. The diesel generator energy-saving system comprises a diesel generator and a load; a rectifier device, a booster and inverter are sequentially connected in series between the diesel generator and the load; an energy storage unit is connected between the booster and the inverter; an energy converter is connected between the inverter and the load, and is also connected with the diesel generator; and the diesel generator is a speed-changing diesel generator. The diesel generator energy-saving system achieves the regulation of the diesel generator via direct load changes, maximizes the energy economization of the diesel generator, and achieves energy conversion by adopting the energy converter at the same time, the transmission efficiency is very high, the optimization of the control process efficiency and the whole process matching of the diesel quantity and the load are realized, and a state that an RTG (Radioisotope Thermoelectric Generator) keeps a full speed status under the condition of a light load to cause high diesel consumption is changed. The diesel generator energy-saving system dose not change the flexibility of the RTG, and fundamentally saves diesel and achieves emission reduction.
Description
Technical field
The utility model belongs to the electric generator energy-conserving technology, relates to a kind of diesel engine generator energy conserving system specifically.
Background technology
The engine that tyred container door type crane (abbreviation RTG) is equipped is used diesel engine for generating, and generating has only two kinds of speed of idling and full speed with diesel engine.Generating designs by lifting loaded van maximum overload ability with the power of diesel engine; Make generator under the situation of light loads such as lifting empty van, transition, still keep full speed running; The energy that diesel engine generator produces can not be used up fully, and excess energy can only consume on resistance.Harbour RTG generally adopts the main diesel-electric set electric supply of 300kW～600kW, as long as in running order, and lifting container no matter whether, generating set all is in running status.Certain stockyard statistics shows: RTG operation in average every month 400h, and the nearly 200h of no-load running, no-load ratio is about 50%.Even under non-idle condition; RTG also only need provide rated power in loaded van hoists process; Almost be in the light load state 90% running time, and diesel engine generator can not be followed the size change fuel delivery of load, be in the state of " low load with strong power " often.
In the prior art there be the energy-conserving and emission-cutting technology modification scheme of RTG at present: 1, " oil changes "; 2, electronic RTG; 3, vast capacity capacitance group; 4, increase by four kinds of modes such as standby diesel generating set.Wherein the improvement cost of " oil changes " scheme is bigger, and dilatation has high requirements to electrical network, and has limited the flexibility of RTG; The scheme of electronic RTG is the oil electric mixed dynamic scheme, when storage yard operation, adopts ground guide or trolley route mains-supplied, and this retrofit scheme difficulty is big, and the transition complicated operation; But vast capacity capacitance group scheme fuel-economizing 12%～30%, but vast capacity capacitance group improvement cost is big, and cost performance is not high; Increase standby diesel generating set scheme, data show can practice thrift 23% fuel oil, but increasing the standby diesel generating set can make the failure rate of main generator increase greatly to the frequent start-stop of host groups.The diesel engine generator modification scheme that how can provide a kind of and fundamentally save fuel oil, reduce discharging becomes the urgent demand of people.
The utility model content
The utility model is in order to overcome the deficiency that prior art exists; Through detection and dc energy storage unit to the required actual power of diesel engine generator load; Control the output voltage of this system and the requirement that frequency meets load; Thereby realize the whole process coupling of oil mass, a kind of diesel engine generator energy conserving system of fundamentally saving fuel oil, reducing discharging is provided with load.
The utility model is realized through following technical scheme: a kind of diesel engine generator energy conserving system; Comprise diesel engine generator and load; Between diesel engine generator and load, be serially connected with rectifying device, stepup transformer and inverter successively, between stepup transformer and inverter, be connected with an energy-storage units, between inverter and load, be connected with an energy converter; Energy converter is connected with diesel engine generator, and diesel engine generator is a speed changing diesel generator.
Said energy-storage units is a super capacitor, and the super capacitor that adds is mainly used in the buffering of energy.
Said speed changing diesel generator comprise one be provided with variable speed governor diesel engine with one with the coaxial synchronous generator that is connected of said diesel engine.
The effect of said energy converter be no matter diesel engine speed how, the low frequency low tension that synchronous generator sends also can rise to the electric weight that satisfies spendable rated voltage of power consumption equipment and rated frequency requirement through the energy converter pump.The realization means are: non-industrial-frequency alternating current is carried out rectification and the torque of generator is controlled through power electronic equipment; The variation of load causes the variation of dc bus power; This variable power dynamically provides the conditioning signal of diesel engine unit fuel delivery; Oil mass is supplied with actuator according to Signal Regulation throttle size, thereby realizes the optimal control of fuel oil.
The beneficial effect of the utility model is: the utility model is directly realized the diesel engine generator adjusting with load variations; The energy consumption that diesel engine generator has been saved in maximization; Adopt energy converter to realize power conversion simultaneously; Transmission efficiency is very high, has realized optimization and the oil mass of the control procedure efficient whole process coupling with load, changes RTG generating set in the past and when the light load state, still works in the high consumption oily condition that causes under the situation at full speed.The utility model neither changes the flexibility of RTG, can fundamentally save fuel oil again, reduce discharging.
After the diesel engine generator energy conserving system of the utility model is accomplished laboratory test; Energy-conservation inspection center of Ministry of Communications has carried out on-the-spot test to this system; Write down the process of the test and the fuel-economizing data of 100% load: in 20min, hoist, transfer the loaded van 5 times of 35t, consumption oil is 2.8L only.
The RTG in-site modeling evidence that the utility model carries out in container terminal, Nansha, PORT OF GUANGZHOU; Under the identical situation of production efficiency, the fuel consumption of 1h is: 20 forty equivalent unit 40 liftings 10 times, the oily 16.5L of former consumption; Adopt the energy conserving system of the utility model to consume oily 8L, rate of economizing gasoline 50%; 40 forty equivalent unit 40 liftings 10 times, the oily 18L of former consumption adopts the energy conserving system of the utility model to consume oily 11L, and rate of economizing gasoline is near 40%.
Description of drawings
Fig. 1 is the power conversion sketch map of the utility model diesel engine generator energy conserving system.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail.
Embodiment: a kind of diesel engine generator energy conserving system; Comprise diesel engine generator and load; Between diesel engine generator and load, be serially connected with rectifying device, stepup transformer and inverter successively, between stepup transformer and inverter, be connected with an energy-storage units, between inverter and load, be connected with an energy converter; Energy converter is connected with diesel engine generator, and diesel engine generator is a speed changing diesel generator.Energy-storage units is a super capacitor, speed changing diesel generator comprise one be provided with variable speed governor diesel engine with one with the coaxial synchronous generator that is connected of diesel engine.
The alternating current that energy converter sends generator is transformed into available direct current energy; And through detection and dc energy storage unit to the required actual power of load; Control the voltage of this system's out-put supply and the requirement that frequency meets load, thereby realize the whole process coupling of oil mass and load.
The utility model is through to the diesel generating set speed governing, makes diesel generating set can change the rotating speed of diesel engine unit according to the variation of load, reaches the purpose of fuel-economizing.The operating characteristic of diesel engine generator mainly contains load characteristic, speed characteristics and governor control characteristics.Draw through test, under equally loaded power, the fuel consumption the when fuel consumption when rotating speed is 1200r/min is lower than 1800r/min.Electricity consumption requirement for the voltage that makes output and frequency satisfy RTG increases an inverter, to satisfy the electricity consumption requirement of RTG in energy conserving system.
The electricity that sends during the diesel engine generator low-speed running is enough to support RTG all electricity consumptions except that hoisting; Like illumination, air-conditioning, walking etc.; Have electric weight more than needed in addition, in order not waste these electric energy, this energy conserving system adopts one group of energy-storage units that it is collected; Collect simultaneously transfer chest in addition the time potential energy converting and energy electric energy, be used to compensate the consumption of electric energy when promoting loaded van.When system determines the load increase, automatically diesel engine speed regulation is arrived required rotating speed or rated speed, make generator send the task that enough electric weight are accomplished the loaded van that hoists.
Should be noted that at last; Above content is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection range; The simple modification that those of ordinary skill in the art carries out the technical scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technical scheme.
Claims (3)
1. diesel engine generator energy conserving system; Comprise diesel engine generator and load; It is characterized in that: between said diesel engine generator and said load, be serially connected with rectifying device, stepup transformer and inverter successively, between said stepup transformer and said inverter, be connected with an energy-storage units, between said inverter and said load, be connected with an energy converter; Said energy converter is connected with said diesel engine generator, and said diesel engine generator is a speed changing diesel generator.
2. diesel engine generator energy conserving system according to claim 1 is characterized in that: said energy-storage units is a super capacitor.
3. diesel engine generator energy conserving system according to claim 1 and 2 is characterized in that: said speed changing diesel generator comprise one be provided with variable speed governor diesel engine with one with the coaxial synchronous generator that is connected of said diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204479271U CN202309602U (en) | 2011-11-11 | 2011-11-11 | Diesel generator energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204479271U CN202309602U (en) | 2011-11-11 | 2011-11-11 | Diesel generator energy-saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309602U true CN202309602U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204479271U Expired - Fee Related CN202309602U (en) | 2011-11-11 | 2011-11-11 | Diesel generator energy-saving system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202309602U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887434A (en) * | 2012-10-19 | 2013-01-23 | 青岛港（集团）有限公司 | Energy-saving tyre crane |
| CN109525031A (en) * | 2018-09-28 | 2019-03-26 | 无锡华东自动化科技有限公司 | Diesel engine speed change power supply economizer system |
| CN109742988A (en) * | 2019-03-15 | 2019-05-10 | 重庆三雅电器有限公司 | Starting and incense electric control system for diesel-driven generator |
| CN110957720A (en) * | 2019-11-15 | 2020-04-03 | 国网浙江省电力有限公司嘉兴供电公司 | Power supply system and method for stable power supply |
-
2011
- 2011-11-11 CN CN2011204479271U patent/CN202309602U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887434A (en) * | 2012-10-19 | 2013-01-23 | 青岛港（集团）有限公司 | Energy-saving tyre crane |
| CN109525031A (en) * | 2018-09-28 | 2019-03-26 | 无锡华东自动化科技有限公司 | Diesel engine speed change power supply economizer system |
| CN109742988A (en) * | 2019-03-15 | 2019-05-10 | 重庆三雅电器有限公司 | Starting and incense electric control system for diesel-driven generator |
| CN109742988B (en) * | 2019-03-15 | 2020-12-15 | 重庆三雅电器有限公司 | Starting, supplying and backup electric control system for diesel generator |
| CN110957720A (en) * | 2019-11-15 | 2020-04-03 | 国网浙江省电力有限公司嘉兴供电公司 | Power supply system and method for stable power supply |
| CN110957720B (en) * | 2019-11-15 | 2021-10-29 | 国网浙江省电力有限公司嘉兴供电公司 | Power supply system and method for stable power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |