CN202468042U - Control system of gas generating set - Google Patents
Control system of gas generating set Download PDFInfo
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- CN202468042U CN202468042U CN2012200993909U CN201220099390U CN202468042U CN 202468042 U CN202468042 U CN 202468042U CN 2012200993909 U CN2012200993909 U CN 2012200993909U CN 201220099390 U CN201220099390 U CN 201220099390U CN 202468042 U CN202468042 U CN 202468042U
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Abstract
The utility model discloses a control system of a gas generating set. The generating set comprises an internal combustion engine, a generator, a gas pipeline and a diesel oil supply pipeline, wherein the gas pipeline is connected with the internal combustion engine after passing through a wet flame arrester, a dry flame arrester, a gas electromagnetic valve and a micro-step gas controller; and the diesel oil supply pipeline is connected with the internal combustion engine through a diesel oil electromagnetic valve and a micro-step diesel oil controller. The control system is characterized in that an input end of a microcontroller in the control system is connected with a methane concentration sensor, a rotation speed sensor and a torque sensor; and the output end of the microcontroller is connected with the gas electromagnetic valve, the micro-step gas controller, the diesel oil electromagnetic valve and the micro-step diesel oil controller. In the utility model, through the timely adjustment of the diesel oil supply quantity, the output power of the generator can be stabilized in a constant range even though the concentration of methane in the gas is greatly fluctuated, and the problem of generating electricity by use of low-concentration gas is solved; and the control system disclosed by the utility model has the advantages of simple and reasonable structure and noticeable beneficial effects, and is convenient to popularize and use.
Description
Technical field
The utility model relates to a kind of gas electricity unit control system, in particular, relates in particular to a kind of gas electricity unit control system of stablizing output power through the delivery volume of regulating diesel oil.
Background technique
Coal mine gas divides high concentration gas and low concentration gas, and high concentration gas is meant gas density greater than 25% gas, and low concentration gas is meant that gas density is lower than 25% gas.The about gas more than 60% of China is to contain the low concentration gas of methane below 25%, and by the safety regulations in coal mine requirement, gas density is just can not store and carry below 25%.The 148th article of the 5th regulation of new edition " safety regulations in coal mine ": the gas density of extraction is lower than at 30% o'clock, must not directly burn as combustion gas; When being used for internal-combustion engine generating or making other purposes, the utilization of gas, carrying must be by taking corresponding technical safety measures.Generating provides institutional guarantee to low concentration gas for this.
Constantly perfect along with the low concentration gas generation technology, low density coal-seam gas power generating industry will have optimum large-scale development, will produce increasing economic benefit and social benefit.The low concentration gas generator set adopts the electrically controlled fuel gas mixer technology, can control air fuel ratio automatically, to adapt to the change in concentration of gas; Simultaneously; The light concentration mash gas safety conveying technology can adopt thin water smoke technology, to solve the ground safe transport problem of low concentration gas.Chinese Academy of Engineering week academician thinks: " the low concentration gas generator set is fit to the little characteristics of China's coal-mine point volume, can be rated as the golden key that cracks a China's coal-mine gas difficult problem ".
Since 2004, many enterprises and research institute just begin " the thin water smoke of coal mine gas is carried and generation technology " developed research, and with success of the test in 1 year, make the low concentration gas generation technology obtain fast development.The low concentration gas electric surface is facing to two main problems, and the one, each colliery own different, and also at any time all in variation, traditional generator set is difficult to " coping with shifting events by sticking to a fundamental principle "; The 2nd, the safe transport problem of low concentration gas.How utilizing existing power generating equipment, make things convenient for, stably utilize gas electricity, is the key point of dealing with problems.
Summary of the invention
The utility model provides a kind of gas electricity unit control system of stablizing output power through the delivery volume of regulating diesel oil in order to overcome the shortcoming of above-mentioned technical problem.
The gas electricity unit control system of the utility model; Generator set comprises internal-combustion engine, the generator and gas tube that fuel is provided and the diesel oil service that rely on internal-combustion engine to drive, and the cylinder of said internal-combustion engine is provided with methane gas import and diesel oil import; Said gas tube is successively through being connected with the methane gas import of internal-combustion engine behind wet type flame trap, dry type flame trap, gas solenoid valve and the micro-stepping gas controller; The gas solenoid valve is used to control the on off operating mode of gas tube, and the micro-stepping gas controller is used to control the folding degree of gas tube; The diesel oil supplying pipe is connected with the diesel oil import of internal-combustion engine through diesel oil solenoid valve, micro-stepping diesel oil controller, and the diesel oil solenoid valve is used to control the open and-shut mode of diesel oil supplying pipe, and micro-stepping diesel oil controller is used to control the folding degree of diesel oil supplying pipe; Its specialization is: said control system comprises clock circuit, power module and the microcontroller that plays computing and control action, and the input end of microcontroller is connected with sensing methane concentration device, speed probe and torque sensor; The output terminal of microcontroller all is connected with gas solenoid valve, micro-stepping gas controller, diesel oil solenoid valve, micro-stepping diesel oil controller.
Be provided with methane gas import and diesel oil import on the internal-combustion engine simultaneously, methane gas and diesel oil get into and order about internal combustion engine simultaneously; Internal-combustion engine orders about generator through driving mechanism and generates electricity.Two flame traps of wet type and dry type flame trap are set between gas tube import and internal-combustion engine, can effectively avoid the generation of fire and explosive accident; Gas solenoid valve and diesel oil solenoid valve are controlled the closed condition of pipeline, and micro-stepping diesel oil controller and micro-stepping gas controller are used for the switching degree of pipeline is controlled, with the flow of real-time control diesel oil and methane gas.Microcontroller is realized the output of signals collecting, data operation and control signal; Microcontroller is gathered content of gas, output speed and moment of torsion respectively through sensing methane concentration device, speed probe and torque sensor, goes out generated output by rotating speed and torque arithmetic again; Microcontroller carries out the state and the aperture of gas tube and diesel oil supplying pipe through gas solenoid valve, micro-stepping gas controller, diesel oil solenoid valve, micro-stepping diesel oil controller in the air.The generator set of the utility model is that master, diesel oil supply are that the form of assisting is generated electricity with the gas supply in the process of work; Because CH in the methane gas in the ore deposit, ground
4Content unstable, be merely that fuel generates electricity with gas, very big to the output-power fluctuation of generator, be equipped with the diesel oil supplying pipe.CH in methane gas
4During the content step-down, the diesel oil amount that the diesel oil supplying pipe is supplied with increases; CH in methane gas
4When content uprises, reduce or stop the supply of diesel oil, have stable power output to guarantee generator.
The gas electricity unit control system of the utility model is provided with stepper motor in said micro-stepping gas controller and the micro-stepping diesel oil controller.Can effectively control the folding degree of pipeline through stepper motor.
The gas electricity unit control system of the utility model, the input end of said microcontroller also are connected with oil pressure sensor and cylinder temperature transducer; The signal output part of microcontroller also is connected with display device.Oil pressure sensor is used for diesel oil pressure is detected, and can detect the temperature of cylinder in real time through the temperature cylinder sensor, and the control cooling system rationally dispels the heat.Display device is used for the generator set Operational Limits is shown, so as react its working state intuitively, can adopt liquid crystal display.
The beneficial effect of the utility model is: the gas electricity unit of the utility model through with IC Engine Design for can utilize gas, diesel oil to carry out work simultaneously for fuel; Even the concentration of methane has bigger fluctuation in the gas of ore deposit, ground; Size through timely adjusting diesel oil delivery volume; The power stability that has guaranteed generator output does not effectively have bigger fluctuation in constant scope, solved a difficult problem utilizing low concentration gas to generate electricity.Realized effective control of gas tube and diesel oil supplying pipe on off operating mode and folding degree through solenoid valve, micro-stepping controller; Microcontroller can calculate the output power of generator through speed probe and torque sensor, and through the delivery volume that micro-stepping diesel oil controller is regulated diesel oil, reaches the purpose that generated output power maintains stability range.The utlity model has the outstanding and advantage easy to utilize of simple and reasonable, beneficial effect.
Description of drawings
Fig. 1 is the structure principle chart of the gas electricity unit control system of the utility model;
Fig. 2 is the schematic diagram of circuit part in the utility model.
Among the figure: 1 internal-combustion engine, 2 generators, 3 gas tubes, 4 wet type flame traps, 5 dry type flame traps, 6 gas solenoid valves, 7 micro-stepping gas controllers, 8 diesel oil supplying pipes, 9 diesel oil solenoid valves, 10 micro-stepping diesel oil controllers; 11 microcontrollers, 12 sensing methane concentration devices, 13 oil pressure sensors, 14 speed probes, 15 torque sensors, 16 temperature cylinder sensors, 17 clock circuits, 18 power modules, 19 display devices.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1; Provided the structure principle chart of the gas electricity unit control system of the utility model, it comprises internal-combustion engine 1, generator 2, gas tube 3, wet type flame trap 4, dry type flame trap 5, gas solenoid valve 6, micro-stepping gas controller 7, diesel oil supplying pipe 8, diesel oil solenoid valve 9, micro-stepping diesel oil controller 10; Internal-combustion engine 1 is provided with methane gas import and diesel oil import, can utilize methane gas and diesel oil to act as a fuel simultaneously and carry out work; Internal-combustion engine 1 orders about generator 2 through driving mechanism and generates electricity.The input end of gas tube 3 is connected with the gas supply pipeline, at first passes through wet type flame trap 4 and dry type flame trap 5, has influence on gas conveyance conduit one side with the fire or the blast of the pusher side of avoiding generating electricity.Be connected to the methane gas import of internal-combustion engine 1 after after dry type flame trap 5 is handled, passing through gas solenoid valve 6 and micro-stepping gas controller 7 again, so that in internal-combustion engine 1, supply with methane gas.Gas solenoid valve 6 can be controlled the on off operating mode of gas tube 3, and is out of service or when breaking down at internal-combustion engine 1, in time cuts off gas tube; The micro-stepping gas controller can be controlled the folding condition of gas tube 3, so that regulate the gas flow that enters into internal-combustion engine 1.Be connected in the diesel oil import of internal-combustion engine 1 behind diesel oil supplying pipe 8 process diesel oil solenoid valves 9 and the micro-stepping diesel oil controller 10; Diesel oil solenoid valve 9 is used to control the on off operating mode of diesel oil supplying pipe 8; The folding degree of 10 pairs of diesel oil supplying pipes 8 of micro-stepping diesel oil controller is controlled; To cooperate the content of methane in the methane gas, carry out corresponding folding degree and regulate, the output power of generator 2 is stabilized within the reasonable range.
Wherein, be provided with stepper motor in micro-stepping gas controller 7 and the micro-stepping diesel oil controller 10,, stable status control accurate to realize.In the process of internal-combustion engine 1 work, be main with gas fuel, diesel fuel is auxilliary.
As shown in Figure 2; Provided the structural representation of circuit part in the utility model, it comprises microcontroller 11, sensing methane concentration device 12, oil pressure sensor 13, speed probe 14, torque sensor 15, temperature cylinder sensor 16, clock circuit 17, power module 18, display device 19; Shown microcontroller 11 is realized the effect of signals collecting, data operation and control signal output, can adopt single-chip microcomputer or dsp chip; Sensing methane concentration device 12 is used for detecting the methane concentration of gas tube 3, so that calculate the acting amount of the methane gas of per unit volume.Oil pressure sensor 13 is received the signals collecting port of microcontroller 11, so that carry out the collection of diesel oil pressure signal; Speed probe 14 and torque sensor 15 can calculate the size of generator 2 output powers through the collection to rotating speed and torque signal.Temperature cylinder sensor 16 is used to detect the temperature of cylinder, so that the control cooling system is lowered the temperature in real time.Clock circuit 17 is respectively applied for CLK clock and the electric energy that microcontroller 11 work are provided with power module 18; Display device 19 is connected with the signal output port of microcontroller 11, is used for real-time video data information.
The output control terminal of drawing together microcontroller 11 also is connected with gas solenoid valve 6, micro-stepping gas controller 7, diesel oil solenoid valve 9 and micro-stepping diesel oil controller 10 respectively, so that on off operating mode, the folding degree of gas tube 3 and diesel oil supplying pipe 8 are controlled.
The gas electricity unit control system of the utility model is in the process of work, and gas solenoid valve 6 all is in the state of opening with diesel oil solenoid valve 9, is that main the oil recovery is that the form of assisting enters into internal-combustion engine 1 with gas, and internal-combustion engine 1 orders about generator 2 again and generates electricity; If detecting the output power of internal-combustion engine 1, reduces by microcontroller 11; At this moment also can reduce through sensing methane concentration device 12 detected methane concentrations; Just increase the delivery volume of diesel oil through micro-stepping diesel oil controller 10; Improve the acting ability of internal-combustion engine 1, let the output power of generator maintain in the stable scope; If microcontroller 11 detects the output power of internal-combustion engine 1 and raises; At this moment also can increase through sensing methane concentration device 12 detected methane concentrations; Just reduce the delivery volume of diesel oil through micro-stepping diesel oil controller 10; Reduce the acting ability of internal-combustion engine 1, let the output power of generator maintain in the stable scope.
The utility model is through in time regulating the size of diesel oil delivery volume, and the power stability that has guaranteed generator output does not effectively have bigger fluctuation in constant scope, solved a difficult problem utilizing low concentration gas to generate electricity.Realized effective control of gas tube and diesel oil supplying pipe on off operating mode and folding degree through solenoid valve, micro-stepping controller, have simple and reasonable, beneficial effect outstanding and advantage easy to utilize.
Claims (4)
1. gas electricity unit control system; Generator set comprises internal-combustion engine (1), the generator (2) and gas tube (3) that fuel is provided and the diesel oil service (8) that rely on internal-combustion engine to drive, and the cylinder of said internal-combustion engine is provided with methane gas import and diesel oil import; Said gas tube passes through wet type flame trap (4), dry type flame trap (5), gas solenoid valve (6) and micro-stepping gas controller (7) back successively and is connected with the methane gas import of internal-combustion engine; The gas solenoid valve is used to control the on off operating mode of gas tube, and the micro-stepping gas controller is used to control the folding degree of gas tube; Diesel oil supplying pipe (8) is connected with the diesel oil import of internal-combustion engine through diesel oil solenoid valve (9), micro-stepping diesel oil controller (10); The diesel oil solenoid valve is used to control the open and-shut mode of diesel oil supplying pipe, and micro-stepping diesel oil controller is used to control the folding degree of diesel oil supplying pipe; It is characterized in that: said control system comprises clock circuit (17), power module (18) and the microcontroller (11) that plays computing and control action, and the input end of microcontroller is connected with sensing methane concentration device (12), speed probe (14) and torque sensor (15); The output terminal of microcontroller all is connected with gas solenoid valve, micro-stepping gas controller, diesel oil solenoid valve, micro-stepping diesel oil controller.
2. gas electricity unit control system according to claim 1 is characterized in that: be provided with stepper motor in said micro-stepping gas controller (7) and the micro-stepping diesel oil controller (10).
3. gas electricity unit control system according to claim 1 and 2 is characterized in that: the input end of said microcontroller (11) also is connected with oil pressure sensor (13) and cylinder temperature transducer (16); The signal output part of microcontroller (11) also is connected with display device (19).
4. gas electricity unit control system according to claim 1 and 2 is characterized in that: said microcontroller is single-chip microcomputer or dsp chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200993909U CN202468042U (en) | 2012-03-16 | 2012-03-16 | Control system of gas generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200993909U CN202468042U (en) | 2012-03-16 | 2012-03-16 | Control system of gas generating set |
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| CN202468042U true CN202468042U (en) | 2012-10-03 |
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| CN2012200993909U Expired - Fee Related CN202468042U (en) | 2012-03-16 | 2012-03-16 | Control system of gas generating set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265355A (en) * | 2014-08-22 | 2015-01-07 | 胡玮琳 | Surplus gas automatic diffusing method for coal mine gas power station |
| CN105649771A (en) * | 2016-01-13 | 2016-06-08 | 中国矿业大学(北京) | Technique and method for achieving power generation by means of explosion of extremely-low-concentration gas |
| CN106468213A (en) * | 2015-08-17 | 2017-03-01 | 聂百胜 | The technology of a kind of utilization coal dust, gas and air mixture explosive power generation and method |
| CN107781043A (en) * | 2016-08-30 | 2018-03-09 | 北京扬德环境科技股份有限公司 | A kind of gas intake controller of internal combustion engine and its method |
-
2012
- 2012-03-16 CN CN2012200993909U patent/CN202468042U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265355A (en) * | 2014-08-22 | 2015-01-07 | 胡玮琳 | Surplus gas automatic diffusing method for coal mine gas power station |
| CN104265355B (en) * | 2014-08-22 | 2017-06-16 | 胡玮琳 | A kind of CMM Power Generation station to have more than needed gas automatic relief method |
| CN106468213A (en) * | 2015-08-17 | 2017-03-01 | 聂百胜 | The technology of a kind of utilization coal dust, gas and air mixture explosive power generation and method |
| CN105649771A (en) * | 2016-01-13 | 2016-06-08 | 中国矿业大学(北京) | Technique and method for achieving power generation by means of explosion of extremely-low-concentration gas |
| CN107781043A (en) * | 2016-08-30 | 2018-03-09 | 北京扬德环境科技股份有限公司 | A kind of gas intake controller of internal combustion engine and its method |
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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: 20121003 Termination date: 20150316 |
|
| EXPY | Termination of patent right or utility model |