CN203769955U - One key starting control system for large-sized fuel gas generator set - Google Patents
One key starting control system for large-sized fuel gas generator set Download PDFInfo
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- CN203769955U CN203769955U CN201320882435.4U CN201320882435U CN203769955U CN 203769955 U CN203769955 U CN 203769955U CN 201320882435 U CN201320882435 U CN 201320882435U CN 203769955 U CN203769955 U CN 203769955U
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Abstract
The utility model relates to the field of large-size fuel gas generator set control systems, in particular to a one key starting control system for the large-sized fuel gas generator set. The one key starting control system for the large-sized fuel gas generator set comprises a one key starting core control unit; the one key starting core control unit is connected with a fuel gas electric valve, an air fuel ratio control unit, a starting motor, a control unit of an engine and a control unit of a power generator; a gas supplying pipeline is connected with the air fuel ratio control unit by the fuel gas electric valve; the air fuel ratio control unit is connected with the control unit of the engine; the control unit of the engine is connected with the control unit of the power generator; the starting motor is connected with the control unit of the engine. The control function is realized by adopting the electrical elements, the manual operation with multiple steps is replaced, the one key starting control system is effective and intuitive in use, and good in one key starting effect, and elements such as an electronic power meter and a thermocouple are used as detection elements, so the one key starting core control unit is high in reliability, basically does not need maintenance, and is low in price and wide in suitability.
Description
Technical field
The utility model relates to a kind of large-scale control system of gas generator set field, and particularly a kind of large-scale fuel gas generation unit one key starts control system.
Background technique
Large-scale fuel gas generation unit is because rotating speed is low, combustion gas and air mixed proportion (hereinafter to be referred as air fuel ratio) are controlled complicated, detect generator excitation and the same period impact of the factors such as high, the grid-connected rear combustion gas generator set stability control difficulty of grid-connected difficulty is large, it is puzzlement developer's technical barrier that a key starts always.Large-scale fuel gas generation unit is by gas inlet, control unit of engine, and air fuel ratio control unit, generator control unit, a key starts the control section compositions such as key control unit.Cannot adjust suitable air fuel ratio because air fuel ratio control unit is subject to the impact of sensor technology in initial start stage, hinder so that become the maximum technological difficulties that a key startup is controlled.The start-up course of large-scale fuel gas generation unit mostly was artificial multi-step startup in the past, was to drag motor at starting motor to reach after startup rotating speed, and by manually opening gas control valve, the opening procedure of gas valve need to have certain skill.As much as possible slowly open, object is to control combustion gas inlet, manually finds suitable startup air fuel ratio.Because gas valve enters flow by little to controlling greatly gradually combustion gas, so always there will be the opportunity that reaches ideal air-fuel ratio in the process of slowly opening at valve, when ideal air-fuel ratio occurs, unit just starts successfully.After unit starting success, air fuel ratio control unit plays a role gradually, along with the variation of the rising of rotating speed and the increase of power and combustion gas methane concentration, adjusts dynamically combustion gas inlet.Unit starting successfully needs need to be by special messenger's operate generator control unit when grid-connected, its process is that field current is opened and suitably regulated in excitation unit, make generator output voltage reach rating value, when generator set output voltage reaches rating value, open same period detection unit and carry out grid-connectedly, grid-connected successful rear engine operator will carry out loading adjustment to motor.Said process needs motor manipulation personnel and grid-connected operator's close fit, to reach fuel gas generation unit from starting to the process of generating electricity by way of merging two or more grid systems, which major defect is to have larger manpower waste, and the start-up course endurance is long, is difficult to increase work efficiency.
Model utility content
According to above the deficiencies in the prior art, the technical problems to be solved in the utility model is: provide one can overcome above-mentioned defect, large-scale fuel gas generation unit one key easy to use, fast response time starts control system.
The utility model solves the technological scheme that its technical problem adopts:
Described large-scale fuel gas generation unit one key starts control system, comprise that a key starts key control unit, one key starts key control unit and connects electric valve for gas burner, air fuel ratio control unit, starting motor, the control unit of motor and the control unit of generator, gas supply pipe road connects air fuel ratio control unit by electric valve for gas burner, the control unit of air fuel ratio control unit connecting engine, the control unit of motor connects the control unit of generator, the control unit of starting motor connecting engine.
On the fuel gas supply pipeline of described large-scale fuel gas generation unit one key startup control system, be provided with electric valve for gas burner, auxiliary fuel supply-system, on generator set air inlet pipeline, increase electric valve for gas burner, make the accurate electronic control of combustion gas inlet, substituted the manual operation of multi-step, use effective reliability high, substantially do not need to safeguard, cheap, applicability is wide, simultaneously, generator control system increases grid-connected signal feed back output, starts key control unit acquisition applications for a key.
Preferred further, motor and starting motor gear are connected with a joggle, and motor is connected with generator coaxle.
Preferred further, on motor, be provided with temperature-measuring element and power detection device.
Preferred further, temperature-measuring element adopts K type thermocouple, and power detection device adopts electronic power meter, and K type thermocouple is connected a key and starts key control unit with electronic power meter.Engine body is equipped with the warm temperature-measuring element K type thermocouple of the row of measurement, power detecting unit is electronic power meter, in the mode of RS485 communication, power data is uploaded to a key and starts key control unit, other Operational Limitss of motor are gathered and are sent to a key and start key control unit by correlate meter, for a key startup key control unit with reference to.
Preferred further, electronic power meter and temperature detection device are set on generator, electronic power meter is connected a key and starts key control unit with temperature detection device.Generating set power test section adopts electronic power meter, detects generator set output power so that a key starts key control unit, and the outlet pipe place of generator set connects temperature detection device, starts key control unit gather motor row temperature for a key.
Preferred further, the excitation enable switch of the control unit of generator and detect the same period control switch adopt relay.Generator control unit excitation enable switch upgrades to Control by hand switch, sends excitation actuating signal to better carry out a key startup key control unit; Generator control unit detects control switch the same period by the hand switch Control of upgrading, and effectively carries out grid-connected signal.The excitation control relay of generator control unit starts key control unit with simultaneous interconnecting relay and a key and is connected, and carries out excitation and starts and simultaneous interconnecting order, and a key starts key control unit and connects generator control unit, gathers grid-connected state signal.
Preferred further, a key starts key control unit and is made up of programmable controller and liquid crystal touch screen.Easy to operate, applicability is wide.
The beneficial effect that the utility model has is:
It is to carry out automatization simulation according to traditional starting method and step that described large-scale fuel gas generation unit one key starts control system, thereby replace relevant manual operation, realized large-scale fuel gas generation unit and pressed start button and can realize engine start to generating electricity by way of merging two or more grid systems and the full process automatization control of grid-connected rear set steady work.The utility model adopts electric elements to realize and controls function, has substituted the manual operation of multi-step, uses effective, directly perceived, and a key starts respond well, and taking the element such as electronic power meter and thermocouple as Detecting element, reliability is high, substantially do not need to safeguard, cheap, applicability is wide.
Brief description of the drawings
Fig. 1 is systematic square frame schematic diagram of the present utility model;
Fig. 2 is method flow diagram of the present utility model;
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, large-scale fuel gas generation unit one key described in the utility model starts control system, comprise that a key starts key control unit, one key starts key control unit and connects electric valve for gas burner, air fuel ratio control unit, starting motor, the control unit of motor and the control unit of generator, gas supply pipe road connects air fuel ratio control unit by electric valve for gas burner, the control unit of air fuel ratio control unit connecting engine, the control unit of motor connects the control unit of generator, the control unit of starting motor connecting engine.
Wherein, motor and starting motor gear are connected with a joggle, and motor is connected with generator coaxle.On motor, be provided with temperature-measuring element and power detection device, temperature-measuring element adopts K type thermocouple, and power detection device adopts electronic power meter, and K type thermocouple is connected a key and starts key control unit with electronic power meter.Electronic power meter and temperature detection device are set on generator, electronic power meter be connected with temperature detection device one key start key control unit, the excitation enable switch of the control unit of generator and detect the same period control switch adopt relay.One key starts key control unit and is made up of programmable controller and liquid crystal touch screen.
As shown in Figure 2, large-scale fuel gas generation unit one key of one described in the utility model starts controlling method, comprises the following steps:
Step 1: press start button, a key starts key control unit control starting motor to be opened, and starting motor drives engine rotation;
Step 2 a: key starts key control unit its rotating speed is detected, is reaching after startup rotating speed, and a key starts key control unit will control electric valve for gas burner unlatching, and startup rotating speed is 120-130r/min;
Step 3: detect the rotating speed of motor in the process of carrying out step 2, when the rotating speed of motor is when starting rotating speed and be elevated to idling suddenly, electric valve for gas burner no longer increases aperture simultaneously, engine start success, idling is 360r/min;
Step 4: after engine start success, starting motor stops, and remains idle according to set time, and dead time is 10min;
Step 5: after the idle time finishes, one key start key control unit will send instruction make motor by idle to rated speed, rated speed is 600r/min;
Step 6: motor reaches after rated speed, one key starts key control unit and by sensor, water temperature, oil temperature and lubricating oil pressure is detected, after detected parameters is up to standard, carry out excitation startup by sending instruction to the control unit of generator, 40 DEG C of water temperature ﹥, 45 DEG C of oil temperature ﹥, lubricating oil pressure ﹥ 0.25MP;
Step 7: carrying out in the process of step 6, one key starts key control unit the output voltage of generator is detected, the output voltage of generator reaches after requirement, send grid-connected instruction, the control unit of generator will be opened same period detection unit and carry out grid-connected receiving after grid-connected instruction, after being connected to the grid successfully, generator control unit will feed back grid-connected one-tenth function signal to a key startup key control unit, and output voltage is 400V;
Step 8 a: key starts after key control unit is received grid-connected one-tenth function signal will enter loading mode, electric valve for gas burner is all opened, the inlet of combustion gas is all by the control of air fuel ratio control unit, monitor the stability of power and row's temperature of the each cylinder of motor simultaneously, in the time of engine power fluctuation or row's temperature abnormality, air fuel ratio control unit is by suitable adjusting air-fuel ratio, until power is loaded into setting value, set value of the power is 500KW.After above-mentioned steps completes, a key startup system completes a key start-up performance, starts key control unit on-line monitoring power condition and the warm situation of row at a key in service of unit, automatically carries out at any time sky combustion and controls.
The utility model one key starts key control unit and is made up of PLC, requires intelligent control one key start-up course according to programming, easy to use, and Perfect in shape and function is reliable.
Claims (6)
1. one kind large-scale fuel gas generation unit one key starts control system, it is characterized in that: comprise that a key starts key control unit, one key starts key control unit and connects electric valve for gas burner, air fuel ratio control unit, starting motor, the control unit of motor and the control unit of generator, gas supply pipe road connects air fuel ratio control unit by electric valve for gas burner, the control unit of air fuel ratio control unit connecting engine, the control unit of motor connects the control unit of generator, the control unit of starting motor connecting engine, a described key starts key control unit and is made up of programmable controller and liquid crystal touch screen.
2. large-scale fuel gas generation unit one key according to claim 1 starts control system, it is characterized in that: described motor and starting motor gear are connected with a joggle, and motor is connected with generator coaxle.
3. large-scale fuel gas generation unit one key according to claim 1 starts control system, it is characterized in that: on described motor, be provided with temperature-measuring element and power detection device.
4. large-scale fuel gas generation unit one key according to claim 3 starts control system, it is characterized in that: described temperature-measuring element adopts K type thermocouple, power detection device adopts electronic power meter, and K type thermocouple is connected a key and starts key control unit with electronic power meter.
5. large-scale fuel gas generation unit one key according to claim 1 starts control system, it is characterized in that: electronic power meter and temperature detection device are set on described generator, and electronic power meter is connected a key and starts key control unit with temperature detection device.
6. large-scale fuel gas generation unit according to claim 1 one key starts control system, it is characterized in that: the excitation enable switch of the control unit of described generator and detect control switch the same period and adopt relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882435.4U CN203769955U (en) | 2013-12-30 | 2013-12-30 | One key starting control system for large-sized fuel gas generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882435.4U CN203769955U (en) | 2013-12-30 | 2013-12-30 | One key starting control system for large-sized fuel gas generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769955U true CN203769955U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320882435.4U Expired - Fee Related CN203769955U (en) | 2013-12-30 | 2013-12-30 | One key starting control system for large-sized fuel gas generator set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644037A (en) * | 2013-12-30 | 2014-03-19 | 淄博淄柴新能源有限公司 | One-button start control system and method for large gas generator set |
| CN105810059A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Conversion device used for simulating generator parallel |
| CN113364034A (en) * | 2021-06-11 | 2021-09-07 | 重庆普什机械有限责任公司 | Automatic control method and device for gas generator set |
-
2013
- 2013-12-30 CN CN201320882435.4U patent/CN203769955U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644037A (en) * | 2013-12-30 | 2014-03-19 | 淄博淄柴新能源有限公司 | One-button start control system and method for large gas generator set |
| CN103644037B (en) * | 2013-12-30 | 2016-09-28 | 淄博淄柴新能源有限公司 | Larger gas generating set one-key start control system and control method |
| CN105810059A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Conversion device used for simulating generator parallel |
| CN113364034A (en) * | 2021-06-11 | 2021-09-07 | 重庆普什机械有限责任公司 | Automatic control method and device for gas generator set |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20181230 |