CN105244844A - Landfill gas pretreatment monitoring device and method - Google Patents
Landfill gas pretreatment monitoring device and method Download PDFInfo
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- CN105244844A CN105244844A CN201510691964.XA CN201510691964A CN105244844A CN 105244844 A CN105244844 A CN 105244844A CN 201510691964 A CN201510691964 A CN 201510691964A CN 105244844 A CN105244844 A CN 105244844A
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Abstract
The invention relates to the technical field of landfill gas generator unit power plants, and particularly relates to a landfill gas pretreatment monitoring device and method. The landfill gas pretreatment monitoring device is mainly used to carry out real-time monitoring display on pressure, temperature, CH4 concentration and other parameters of landfill gas, gives an alarm for overrun, and outputs a corresponding protection signal. The gas pretreatment monitoring device monitors the pressure of a gas main pipeline, and monitors the unit gas source flame state of a branch pipeline. According to the invention, safe and stable operation of a landfill gas source and gas generator unit is ensured; the landfill gas pretreatment work state is transmitted to a remote computer monitoring device through communication in real time; remote monitoring, work state data recording and the like are carried out; and the device and the method are suitable for landfill gas pretreatment monitoring.
Description
Technical field
The present invention relates to landfill gas power generation unit plant technical field, particularly relate to a kind of refuse landfill gas preliminary treatment supervising device and method.
Background technology
Containing a large amount of mist, solid particulate matter and impurity in rubbish landfill gas, and flow, pressure, temperature, concentration etc. are all very unstable, be directly used in fuel gas generation and will cause the burn into unstable wear of landfill gas power generation unit, affect landfill gas power generation set steady, safe operation.
Refuse landfill gas preprocessing process gathers parameters such as pressure, temperature, concentration, show, reports to the police; Unit source of the gas flameproof protection is protected.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to propose a kind of refuse landfill gas preliminary treatment supervising device and method.
The present invention adopts following technical scheme for completing its goal of the invention:
A kind of refuse landfill gas preliminary treatment supervising device, comprise: acquisition module, processing module, control module, the input of described processing module is connected by the signal transmission interface of the pressure sensor of acquisition module and gas pretreatment device, temperature sensor, concentration sensor, flame sensor; The data terminal of processing module is connected with rubbish landfill gas gas driven generator group far end computer monitoring device; First output of described processing module is connected by the signal transmission interface of the emergency shutdown ACV Air Cut Valve of control module and gas pretreatment device, exhaust-valve, diffusion valve; Second output of described processing module is connected with the arresting gear of refuse landfill gas by the gas machine engine monitoring device of refuse landfill gas engine monitoring device, gas machine engine control system.
A kind of refuse landfill gas preliminary treatment method for supervising, comprising: to each parameter acquisition, display, the warning of rubbish landfill gas and control refuse landfill gas preliminary treatment flameproof protection;
To each parameter acquisition of rubbish landfill gas, adopt rubbish landfill gas gas preliminary treatment supervising device to the pressure of rubbish landfill gas, temperature, concentration carries out Real-time Collection, real-time display, report to the police to transfiniting and export corresponding protection, stopping signal to rubbish landfill gas gas engine supervising device is reported to the police or is controlled to shut down, and by gas preliminary treatment supervising device to gas main line pressure monitor, and bye-pass unit source of the gas flame status is monitored, report to the police according to the order of severity, the action of control valve group or time delay are shut down, by refuse landfill gas pretreatment work state, far-end computer supervising device is sent in real time by communication, carry out remote monitoring and operating state data record, the signal parameter of the garbage loading embeading atmospheric pressure that described acquisition module gathers, rubbish landfill gas temperature, rubbish landfill gas concentration, flame, by processing module, computing is carried out to image data, parameter display is carried out by touch display screen by generating set, and display parameters, alarm signal are transferred to data centralization communication processor, be forwarded to generating set far-end computer by communication processor, when there is flame alarm signal, control module, by the action of control valve group, sends stopping signal to engine monitoring device simultaneously, sends stopping signal and controls engine time delay shutdown, and send alarm signal by engine monitoring device.
A kind of refuse landfill gas preliminary treatment method for supervising, described overload alarm, the signal gathering respective sensor for Programmable Logic Controller processes, and collection value and setting alarming value are compared warning; Described overload alarm comprises, and rubbish landfill gas temperature height is reported to the police, the low warning of garbage loading embeading atmospheric pressure.
A kind of refuse landfill gas preliminary treatment method for supervising, described refuse landfill gas preliminary treatment flameproof protection controls,, by flame sensor, fire signal is transferred to gas preliminary treatment supervising device, through judging process, control emergency cut-off main line quick action emergency valve, open diffusion valve, for consuming residual refuse landfill gas in pipeline, time delay stops gas unit, after time delay, monitoring rubbish landfill gas concentration does not reduce, and automatic decision diffusion valve fault, opens exhaust-valve and send danger alarm signal; Described flame sensor is arranged on the end of main line and each bye-pass, described quick action emergency valve be arranged on main line enter end; Diffusion valve, exhaust-valve are arranged on the end of main line.
Owing to adopting technical scheme as above, the present invention has following superiority:
A kind of refuse landfill gas preliminary treatment supervising device and method, the main pressure to rubbish landfill gas, temperature, each parameters such as CH4 concentration, carry out Real-Time Monitoring display, report to the police to transfiniting and export corresponding guard signal, and by gas preliminary treatment supervising device to gas main line pressure monitor, and bye-pass unit source of the gas flame status is monitored, ensure garbage loading embeading source of the gas and gas driven generator group safe and stable operation, and by refuse landfill gas pretreatment work state, far-end computer supervising device is sent in real time by communication, carry out remote monitoring and operating state data record etc.Be applicable to the pretreated monitoring of refuse landfill gas.
Accompanying drawing explanation
Fig. 1 is rubbish landfill gas gas preliminary treatment block diagram.
Fig. 2 is that flameproof protection controls application graph of a relation.
In figure: 1, rubbish landfill gas gas preliminary treatment supervising device; 2, acquisition module; 3, processing module; 4, control module; 5, gas pretreatment system; 6, pressure sensor; 7, temperature sensor; 8, concentration sensor; 9, flame sensor; 10, emergency shutdown ACV Air Cut Valve; 11, exhaust-valve; 12, diffusion valve; 13, rubbish landfill gas gas driven generator group far end computer monitoring device; 14, rubbish landfill gas gas engine supervising device; 15, gas machine engine monitoring device; 16, gas machine engine control system; 17, gas engine; 18, arresting gear; 19, rubbish landfill gas source of the gas; 20, emptying pipeline; 21, rubbish landfill gas main pipe rail; 22, rubbish landfill gas bye-pass.
Embodiment
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 1, 2, the invention provides a kind of refuse landfill gas preliminary treatment supervising device, comprise: acquisition module 2, processing module 3, control module 4, the input of described processing module 3 is connected by the signal transmission interface of the pressure sensor 6 of acquisition module 2 and gas pretreatment device 5, temperature sensor 7, concentration sensor 8, flame sensor 9; The data terminal of processing module 3 is connected with rubbish landfill gas gas driven generator group far end computer monitoring device 13; First output of described processing module 3 is connected by the signal transmission interface of the emergency shutdown ACV Air Cut Valve 10 of control module 4 and gas pretreatment device 5, exhaust-valve 11, diffusion valve 12; Second output of described processing module 3 is connected with the arresting gear 18 of refuse landfill gas 17 by the gas machine engine monitoring device 15 of refuse landfill gas engine monitoring device 14, gas machine engine control system 16.
Below, the concrete grammar of refuse landfill gas preliminary treatment monitoring is described.
The invention provides a kind of gas preliminary treatment supervising device acquisition module, rubbish landfill gas temperature adopts PT100 to gather, hydraulic pressure adopts the collection of 0 ~ 1.5MPa/4 ~ 20mA transmitter, garbage loading embeading atmospheric pressure adopts the collection of 0 ~ 0.05MPa/4 ~ 20mA transmitter, and rubbish landfill gas concentration adopts the collection of 0 ~ 100%/4 ~ 20mA transmitter.
The invention provides gas preliminary treatment supervising device processing module, Programmable Logic Controller, by after the sensor signal process of collection, is carried out communication with touch display screen, parameter is shown by touch display screen.
The invention provides gas preliminary treatment supervising device processing module, Programmable Logic Controller, by after the sensor signal process of collection, is made comparisons with the alarming value of setting, is carried out off-limit alarm.
Described overload alarm comprises, and rubbish landfill gas temperature is high: when temperature value is more than or equal to 40 DEG C, reports to the police and exports; Garbage loading embeading atmospheric pressure is low: when force value is less than or equal to 5KPa or when being more than or equal to 20KPa, reports to the police and exports.
Described gas preliminary treatment supervising device control module, controls gas emergency and shuts down the closedown of ACV Air Cut Valve, valve with electrically motorized operation and diffusion valve and open, regulate pipeline inner pressure, close emergency shutdown ACV Air Cut Valve, open diffusion valve when there is danger warning.
Present invention also offers and please refer to Fig. 2, a kind of method of refuse landfill gas preliminary treatment flameproof protection control device protection, comprising:
Conveying main line, each gas unit bye-pass all install flame sensor, when on transfer pipeline during the flames of anger, flame sensor exports 0.2V signal to gas preliminary treatment supervising device acquisition module, gas preliminary treatment supervising device processing module is judged as that transfer pipeline is normal, does not report to the police, no signal exports; When transfer pipeline there being naked light; flame sensor exports 4.5V signal to gas preliminary treatment supervising device processing module; gas preliminary treatment supervising device processing module is judged as that transfer pipeline is abnormal, controls emergency cut-off main line gas trap immediately, opens diffusion valve; and in order to by pipeline; unnecessary gas combustion is clean, and time delay emergency shutdown gas unit, monitors rubbish landfill gas concentration and do not reduce after time delay; automatic decision diffusion valve fault, opens exhaust-valve and sends danger alarm signal.
Claims (4)
1. a refuse landfill gas preliminary treatment supervising device, it is characterized in that: comprising: acquisition module (2), processing module (3), control module (4), the input of described processing module (3) is connected by the signal transmission interface of the pressure sensor (6) of acquisition module (2) and gas pretreatment device (5), temperature sensor (7), concentration sensor (8), flame sensor (9); The data terminal of processing module (3) is connected with rubbish landfill gas gas driven generator group far end computer monitoring device (13); First output of described processing module (3) is connected by the signal transmission interface of the emergency shutdown ACV Air Cut Valve (10) of control module (4) and gas pretreatment device (5), exhaust-valve (11), diffusion valve (12); Second output of described processing module (3) is connected with the arresting gear (18) of refuse landfill gas (17) by the gas machine engine monitoring device (15) of refuse landfill gas engine monitoring device (14), gas machine engine control system (16).
2. a kind of refuse landfill gas preliminary treatment method for supervising of refuse landfill gas preliminary treatment supervising device as claimed in claim 1, is characterized in that: comprising: to each parameter acquisition, display, the warning of rubbish landfill gas and control refuse landfill gas preliminary treatment flameproof protection;
To each parameter acquisition of rubbish landfill gas, adopt preliminary treatment supervising device (1) to the pressure of rubbish landfill gas, temperature, concentration carries out Real-time Collection, real-time display, report to the police to transfiniting and export corresponding protection, stopping signal to rubbish landfill gas gas engine supervising device is reported to the police or is controlled to shut down, and by gas preliminary treatment supervising device (1) to gas main line pressure monitor, and bye-pass unit source of the gas flame status is monitored, report to the police according to the order of severity, the action of control valve group or time delay are shut down, by refuse landfill gas pretreatment work state, far-end computer supervising device (13) is sent in real time by communication, carry out remote monitoring and operating state data record, the signal parameter of the garbage loading embeading atmospheric pressure that described acquisition module (2) gathers, rubbish landfill gas temperature, rubbish landfill gas concentration, flame, by processing module (3), computing is carried out to image data, parameter display is carried out by touch display screen by generating set, and display parameters, alarm signal are transferred to data centralization communication processor, be forwarded to generating set far-end computer by communication processor, when there is flame alarm signal, control module, by the action of control valve group, sends stopping signal to engine monitoring device (14) simultaneously, sends stopping signal and controls engine time delay shutdown, and send alarm signal by engine monitoring device (14).
3. a kind of refuse landfill gas preliminary treatment method for supervising as claimed in claim 2, is characterized in that: described overload alarm, and the signal gathering respective sensor for Programmable Logic Controller processes, and collection value and setting alarming value are compared warning; Described overload alarm comprises, and rubbish landfill gas temperature height is reported to the police, the low warning of garbage loading embeading atmospheric pressure.
4. a kind of refuse landfill gas preliminary treatment method for supervising as claimed in claim 2, it is characterized in that: described refuse landfill gas preliminary treatment flameproof protection controls, , by flame sensor (9), fire signal is transferred to gas preliminary treatment supervising device (1), through judging process, control emergency cut-off main line quick action emergency valve (10), open diffusion valve (12), for consuming residual refuse landfill gas in pipeline, time delay stops gas unit, after time delay, monitoring rubbish landfill gas concentration does not reduce, automatic decision diffusion valve (12) fault, open exhaust-valve (11) and send danger alarm signal, described flame sensor is arranged on the end of main line and each bye-pass (19), described quick action emergency valve (10) be arranged on main line enter end, diffusion valve (12), exhaust-valve (11) are arranged on the end of main line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691964.XA CN105244844A (en) | 2015-10-23 | 2015-10-23 | Landfill gas pretreatment monitoring device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510691964.XA CN105244844A (en) | 2015-10-23 | 2015-10-23 | Landfill gas pretreatment monitoring device and method |
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| CN105244844A true CN105244844A (en) | 2016-01-13 |
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| CN102116208A (en) * | 2010-08-24 | 2011-07-06 | 无锡伟世达电子科技有限公司 | Method and system for controlling rotation speed of general-type gasoline engine |
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| JP2013007352A (en) * | 2011-06-27 | 2013-01-10 | Mazda Motor Corp | Lean burn engine with supercharger |
| CN202789153U (en) * | 2012-07-10 | 2013-03-13 | 深圳相控科技股份有限公司 | Gas power generation system and air/gas ratio control system |
| CN104533643A (en) * | 2014-12-19 | 2015-04-22 | 河南柴油机重工有限责任公司 | Gas engine lean combustion control method and system |
| CN205158074U (en) * | 2015-10-23 | 2016-04-13 | 河南柴油机重工有限责任公司 | Landfill gas body preliminary treatment monitoring device |
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2015
- 2015-10-23 CN CN201510691964.XA patent/CN105244844A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116208A (en) * | 2010-08-24 | 2011-07-06 | 无锡伟世达电子科技有限公司 | Method and system for controlling rotation speed of general-type gasoline engine |
| CN102230425A (en) * | 2011-05-16 | 2011-11-02 | 胜利油田胜利动力机械集团有限公司 | Air-fuel ratio rapid automatic adjusting system for gas generator set |
| JP2013007352A (en) * | 2011-06-27 | 2013-01-10 | Mazda Motor Corp | Lean burn engine with supercharger |
| CN202789153U (en) * | 2012-07-10 | 2013-03-13 | 深圳相控科技股份有限公司 | Gas power generation system and air/gas ratio control system |
| CN104533643A (en) * | 2014-12-19 | 2015-04-22 | 河南柴油机重工有限责任公司 | Gas engine lean combustion control method and system |
| CN205158074U (en) * | 2015-10-23 | 2016-04-13 | 河南柴油机重工有限责任公司 | Landfill gas body preliminary treatment monitoring device |
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Application publication date: 20160113 |