CN203161360U - Fuel gas control device of combined combustion type diesel oil generator set - Google Patents
Fuel gas control device of combined combustion type diesel oil generator set Download PDFInfo
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- CN203161360U CN203161360U CN 201320115726 CN201320115726U CN203161360U CN 203161360 U CN203161360 U CN 203161360U CN 201320115726 CN201320115726 CN 201320115726 CN 201320115726 U CN201320115726 U CN 201320115726U CN 203161360 U CN203161360 U CN 203161360U
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Abstract
The utility model relates to a fuel gas control device of a combined combustion type diesel oil generator set. The fuel gas control device comprises a diesel oil generator and an original electronic control system, which are connected, and further comprises a fuel gas control device body connected with the diesel oil generator. According to the utility model, oil gas mixing ratio can be reasonably and accurately disposed so as to achieve an optimal state of combined combustion power and emission, and accordingly, the fuel economy and low-emission index are the best when the generator set generates power.
Description
Technical field
The utility model relates to a kind of generator fuel control system device, is specifically related to a kind of mixed combustion formula diesel generating set controller for gas.
Background technique
Current, along with the sustained and rapid development of China's economy and improving constantly of living standards of the people, energy cost and environmental pollution become more and more distinct issues, and energy supply safety and the national economy of China is all caused very big impact.For energy saving cost and low carbon emission reduction, reduce and pollute, gas energy (rock gas, LPG) as cleaning, economical, the reliable alternative fuel of supply is extensively promoted, and also is an important directions optimizing energy resource structure, improve atmospheric mass.
At present existing diesel generating set mixes combustion formula gas technology and mainly contains two kinds, and a kind of is that the control of mechanical type fuel oil is controlled in conjunction with mechanical gas; Be that mechanical pump diesel oil is supplied with and the naturally aspirated gas supply system; Another kind is that the control of mechanical type fuel oil is controlled in conjunction with electronic gas, and namely mechanical pump diesel oil is supplied with and the electrospray gas supply system.And mixed combustion controlling method and device directly influence stability, low emission and the fuel economy of generator set output electrical quantity.
Above-mentioned existing two kinds of mixed combustion formula gas technology modes have following deficiency:
(1) these two kinds mixed combustion formula combustion gas controlling methods and device all can not accurately be controlled the diesel oil amount of mixed combustion, make generator set under different load conditions, can not be operated in the most rational oil gas mixing ratio combustion regime, influence stability, discharging and the Economy of unit operation.
(2) existing mixed combustion formula controller for gas is more to the transformation part of former diesel engine, some improvement that relate to fuel oil supply system are simultaneously adjusted, instability and fault that the debugging of the oil gas mixing ratio during unit operation is adjusted are more, can not accomplish simple, intelligentized control and management.
(3) existing mixed combustion formula combustion gas controlling method and device lack the mixed combustion fault diagnosis functions, can't accomplish real-time diagnosis.
(4) existing mixed combustion formula combustion gas control technique because unit performance is a greater impact, reflects the narrow limitation of prior art to not customizing the adjusting oil gas mixing ratio owing to the change of environment.As high height above sea level, high temperature, area such as high and cold.
In a word, the existing combustion formula gas technology that mixes can't be avoided above-described problem and defective.
The model utility content
The utility model embodiment proposes a kind of mixed combustion formula diesel generating set controller for gas, overcome in the prior art and to have the oil gas mixing ratio example control inaccuracy that influence unit operation stability, discharging and Economy, debugging relatively the specialty complexity, can't real-time diagnosis and problem such as three high area surroundings narrow limitation.The technological scheme that realizes above-mentioned purpose is as follows:
Mix combustion formula diesel generating set controller for gas, comprise diesel generator, the primary electron control unit, diesel generator is connected with the primary electron control unit, it is characterized in that: also comprise controller for gas, controller for gas is connected with diesel generator.
Preferably, controller for gas comprises mixed combustion electronic control system, combustion gas storage device, actuator unit, the combustion gas storage device is connected with actuator unit, actuator unit is connected with diesel generator, mix the combustion electronic control system and be connected with said apparatus respectively by signal, mix the combustion electronic control system simultaneously and also be connected with the primary electron control unit.
Preferably, the combustion gas storage device comprises combustion gas air container, vaporizer, flowmeter, filter, and above-mentioned parts connect successively;
Actuator unit comprises solenoid valve, decompressor, gas nozzle, mixer, and above-mentioned parts connect successively;
Mix the combustion electronic control system and comprise electronic control unit, sensor, fault diagnosis system, described sensor carries out the signal input to electronic control unit, sensor comprises throttle position sensor, cooling-water temperature sensor, lambda sensor, crankshaft position sensor, air inlet pressure sensor, generator speed sensor, intake air temperature sensor, sensor is connected by signal with electronic control unit, and electronic control unit is to the actuator unit output signal; Fault diagnosis system is connected with electronic control unit;
Its middle filtrator is connected with solenoid valve, and mixer is connected with diesel generator.
The utility model is reasonable configuration oil gas mixing ratio example accurately, reach best combustion power and the emissions status of mixing, when making generator set generating work the burning Economy and and the low emission index reach largest optimization, accurately control diesel injection amount and fuel gas injection amount, and possess fault diagnosis and warning function, possess the auto-adaptive controling ability of particular surroundings state.
Description of drawings
Fig. 1 the utility model workflow schematic representation
Fig. 2 the utility model control mode schematic representation
Figure number explanation: combustion gas air container 1, vaporizer 2, flowmeter 3, filter 4, solenoid valve 5, decompressor 6, gas nozzle 7, mixer 8, electronic control unit 9
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Among Fig. 1, air container 1 internal memory combustion gas, air container 1 receives the order that electronic control unit 9 sends, the magnetic switch of air container 1 can be opened, combustion gas enters vaporizer 2 successively, flowmeter 3, filter 4, combustion gas afterwards enters controller unit, electronic control unit 9 is according to the signal of diesel generator primary electron control unit transmission, give an order to actuator unit, when the needs combustion gas enters diesel generator, combustion gas enters decompressor 6 through solenoid valve 5, decompressor is the high pressure relief device, enter gas nozzle afterwards, by mixer enter engine chamber (not shown, those skilled in the art according to prior art can clear and definite engine chamber position and effect), the combustion gas that enters engine chamber is gathered by control unit ECU9 and output signal is controlled final controlling element work such as each nozzle, last combustion gas enters engine chamber and diesel oil mixed combustion acting, makes generator set stable operation.
The primary electron control unit ECU of diesel generator is connected with the electronic control unit signal in the utility model or is electrically connected.
At first the primary electron control unit of diesel generator is to the original fuel injection signal of diesel oil of this novel electronic control unit 9 report collections, each sensor also carries out the signal input to electronic control unit 9 simultaneously, gives an order to each final controlling element according to the input electronic control unit 9 of signal.
When electronic control unit 9 is given an order, certain combustion gas is emitted in the order that combustion gas air container 1 is sent according to electronic control unit 9, combustion gas through vaporizer 2, flowmeter 3, filter 4, enter controller for gas, gas nozzle, mixer 8, (not shown by closure then, those skilled in the art can infer position and the effect of closure according to prior art) enter engine air inlet tube and firing chamber (not shown, those skilled in the art can infer position and the effect of closure according to prior art).
Diesel generator (group) mixes the control mode of combustion formula gas control system, and details are as follows:
Control section is made up of electronic control unit 9, various kinds of sensors and final controlling element.Main sensor has air inlet pressure sensor, engine rotation speed sensor, cooling-water temperature sensor, intake air temperature sensor etc., and they to electronic control unit, send work order by electronic control unit to final controlling element such as oil, gas nozzle with signal feed back again.
At first, electronic control unit 9 is gathered the original fuel injection signal of diesel oil by the former ECU of diesel generator, comprises injection timing, fuel injection pulsewidth, and oil spout is interrupted the frequency.The injection timing signal begins for opening of definite oil spout and closes the period; The injection time signal is used for determining the size of fuel injection quantity; Oil spout is interrupted the frequency and is used for judging whether motor is in the DECEL ENLEAN state and judge whether the motor fuel injection control circuit is in damaged condition.Other collecting sensor signals comprise cooling-water temperature sensor, intake air temperature sensor, and air inlet pressure sensor, 12V or 24V power supply are supplied with, speed probe.Each coherent signal that collects is correlated with judges and calculate.
Decision process: 1. whether each sensor and diesel fuel nozzle are in normal working; 2. judge according to suction pressure, rotating speed and water temperature signal whether diesel generating set starts; 3. change according to tach signal, fuel injection pulsewidth and judge which kind of operating mode diesel generator is in; 4. according to mixing the combustion switching signal, judge whether diesel generator is in the combustion state that mixes.
Result of determination: at 1.---if operation irregularity does not then mix the combustion mode and sends alarm signal.At 2.---at the engine start state, do not mix the combustion mode.At 3.---at the DECEL ENLEAN state, do not mix the combustion mode; Rationally limit oily distribution in other operating mode, guarantee that power character, Economy, discharging etc. reach requirement.At 4.---just allow to enter the combustion pattern of mixing when having only the combustion of mixing switch opens.Mix the combustion mode condition: generator (group) must satisfy simultaneously start, non-fault, non-DECEL ENLEAN, mixed four conditions of switch open of firing.
Mix the combustion mode and implement to be divided into diesel oil decrement and two aspects of fuel gas supply, comprehensive electric generating machine (group) operating conditions, calibrating with speed governing position and rotating speed is with reference to the fuel injection pulsewidth data sheet.Under mixed combustion state, generator set determines according to speed governing position and rotating speed that in the diesel injection pulsewidth of each load namely this fuel injection pulsewidth data sheet has provided the consumption of each operation point diesel oil.Because the restriction diesel injection amount that needs in each operation point is lower than below half of the required diesel injection amount of proper functioning, the moment of torsion of motor also descends thereupon.The moment of torsion that lacks is filled up with the burning of combustion gas.In practice, calibrate the fuel gas injection table according to the limit oil mass of operation point and speed governing position and rotating speed.So far, under mixed combustion state, generator (group) is with the gentle dynamically working that mixed combustion was provided of oil, method by the diesel oil decrement reduces diesel-fuel consumption, mode by combustion gas energy reasonable supplement is avoided power and underpower, under the prerequisite of not losing the generator set output power, accomplish to reduce fuel cost, reduce noxious gas emission.
For making pure diesel combustion smooth transition to mixing the combustion mode.Set in the control formula and switch reasonable transient time, adopt the derivative order ladder type decrement of diesel injection and the derivative order ladder type incremental system of fuel gas supply in the switching, mix the combustion ratio to meet the requirements of oil gas.
Oil gas mixes combustion and comprises following two parts than implementation: 1. diesel oil decrement is that the break-make by the control diesel fuel nozzle realizes.The energy method computations of setting by formula obtains subtracting oil mass (weighing with fuel injection pulsewidth), according to the opening time that obtains original fuel injection signal and the corresponding bent axle number of teeth, with the oil spout opening time be starting point, open the control switch of diesel fuel nozzle path, and make it continue to calculate the gained injection time, cut off the control switch of diesel fuel nozzle path afterwards, realize the diesel injection restriction with this.2. fuel gas supply according to generator (group) working condition, in the corresponding bent axle number of teeth, is opened gas nozzle, and is made it to continue to calculate the jet time of gained, closes gas nozzle afterwards, realizes control to the fuel gas supply amount with this.
This controlling method does not influence original each input and output signal of diesel oil ECU, but according to generator (group) working condition, realize the diesel oil decrement by the time that subtracts the original fuel injection signal effect of limit, this signal is handled and has been guaranteed the judgement that do not influence the working condition of diesel generator ECU and avoid other mistakes.This method had both realized that original oil spout was data-optimized, had reached the purpose to the oil spout decrement again.
This control system is because having electrical adjustment function accurately, reply varying environment situation and according to the load condition of unit, can be accurately from customize oil gas mix combustion than and discharge time, accomplish simple, intelligentized control and management, guarantee steadily normal operation of unit.
It is described to press the utility model embodiment, does not need to change the electronic control system of former diesel generating set, just can add to join the mixed combustion formula gas control system of described diesel generator.The reasonable ratio of control diesel oil and fuel gas injection amount realizes that output power one electrical quantity of making peace is stable, simultaneously fuel saving cost and reduce discharging.Each parts that relate in the utility model use parts of the prior art to get final product.
It below only is the preferred embodiment of the embodiment of the invention; not in order to limit the embodiment of the invention; all within the spirit and principle of the embodiment of the invention, any modification of doing, be equal to replacement, improvement etc., all should be included in the protection of the embodiment of the invention.
The utility model adopts such scheme, is fit to the electric-controlled type diesel generating set, comprises the diesel engine of being furnished with electronically controlled high-pressure common rail, electrically-controlled pump nozzle, electronically controlled unit pump; After installing this gas control system device additional, make diesel generating set burning diesel oil and mixed combustion diesel oil+combustion gas (rock gas, liquefied petroleum gas (LPG), biogas etc.) separately with reduction generator set fuel cost, and to obtain the better cleaning discharging simultaneously.
Claims (3)
1. mix combustion formula diesel generating set controller for gas, comprise diesel generator, the primary electron control unit, diesel generator is connected with the primary electron control unit, it is characterized in that: also comprise controller for gas, controller for gas is connected with diesel generator.
2. mixed combustion formula diesel generating set controller for gas according to claim 1, it is characterized in that: controller for gas comprises mixed combustion electronic control system, combustion gas storage device, actuator unit, the combustion gas storage device is connected with actuator unit, actuator unit is connected with diesel generator, mix the combustion electronic control system and be connected with said apparatus respectively by signal, mix the combustion electronic control system simultaneously and also be connected with the primary electron control unit.
3. mixed combustion formula diesel generating set controller for gas according to claim 2, it is characterized in that: the combustion gas storage device comprises combustion gas air container, vaporizer, flowmeter, filter, above-mentioned parts connect successively;
Actuator unit comprises solenoid valve, decompressor, gas nozzle, mixer, and above-mentioned parts connect successively;
Mix the combustion electronic control system and comprise electronic control unit, sensor, fault diagnosis system, described sensor carries out the signal input to electronic control unit, sensor comprises throttle position sensor, cooling-water temperature sensor, lambda sensor, crankshaft position sensor, air inlet pressure sensor, generator speed sensor, intake air temperature sensor, sensor is connected by signal with electronic control unit, and electronic control unit is to the actuator unit output signal; Fault diagnosis system is connected with electronic control unit;
Its middle filtrator is connected with solenoid valve, and mixer is connected with diesel generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115726 CN203161360U (en) | 2013-03-14 | 2013-03-14 | Fuel gas control device of combined combustion type diesel oil generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115726 CN203161360U (en) | 2013-03-14 | 2013-03-14 | Fuel gas control device of combined combustion type diesel oil generator set |
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| CN203161360U true CN203161360U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320115726 Expired - Fee Related CN203161360U (en) | 2013-03-14 | 2013-03-14 | Fuel gas control device of combined combustion type diesel oil generator set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194453A (en) * | 2016-08-29 | 2016-12-07 | 重庆红江机械有限责任公司 | The micro-spray of diesel oil is ignited natural gas formula double fuel machine control system and method |
| CN111022194A (en) * | 2019-12-10 | 2020-04-17 | 重庆鼎工机电有限公司 | Compression ignition detection device suitable for generator set and control method thereof |
| CN111648870A (en) * | 2020-06-08 | 2020-09-11 | 重庆鼎工机电有限公司 | Altitude adaptive control system and method for operating environment of generator set |
| CN117605589A (en) * | 2024-01-24 | 2024-02-27 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
-
2013
- 2013-03-14 CN CN 201320115726 patent/CN203161360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194453A (en) * | 2016-08-29 | 2016-12-07 | 重庆红江机械有限责任公司 | The micro-spray of diesel oil is ignited natural gas formula double fuel machine control system and method |
| CN111022194A (en) * | 2019-12-10 | 2020-04-17 | 重庆鼎工机电有限公司 | Compression ignition detection device suitable for generator set and control method thereof |
| CN111648870A (en) * | 2020-06-08 | 2020-09-11 | 重庆鼎工机电有限公司 | Altitude adaptive control system and method for operating environment of generator set |
| CN117605589A (en) * | 2024-01-24 | 2024-02-27 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
| CN117605589B (en) * | 2024-01-24 | 2024-03-29 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130828 Termination date: 20200314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |