CN105042627A - Closed-loop regulation method and system for gas consumption of heating furnace of transfer station - Google Patents
Closed-loop regulation method and system for gas consumption of heating furnace of transfer station Download PDFInfo
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- CN105042627A CN105042627A CN201510441155.3A CN201510441155A CN105042627A CN 105042627 A CN105042627 A CN 105042627A CN 201510441155 A CN201510441155 A CN 201510441155A CN 105042627 A CN105042627 A CN 105042627A
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Abstract
The invention provides a closed-loop regulation system for the gas consumption of a heating furnace of an oil-field transfer station. The closed-loop regulation system comprises a measuring module, a data processing module and a regulation module. By means of the regulation system, after changes in the transportation amount of station-entering crude oil are recognized, the new temperature of an outlet of the heating furnace can be calculated, and the delivery amount of fuel is controlled through an electronic regulating valve to change the temperature of the outlet of the heating furnace.
Description
Technical field
The present invention relates to technical field of petrochemical industry, particularly relate to a kind of terminal heating furnace air consumption closed-loop adjustment method.
Background technology
Gathering system is one of main energy consumption link in oil field, and gathering system energy consumption is mainly divided into thermal energy consumption and power consumption, and wherein thermal energy consumption accounts for about 3/4 of gathering system total energy consumption, and heating furnace is main thermal energy consumption equipment.The heating furnace of terminal mainly heats the crude oil that enters the station, heat is provided mainly in order to overcome crude oil along soil dispersed heat towards periphery in buried pipeline course of conveying to crude oil, thus ensure that Crude Oil Transportation temperature is not less than condensation point of crude oil, avoid that crude oil pipeline occurs and solidify.No. 200610069528.Xth, existing patent application discloses in a kind of oil extraction in oil field process to the heating furnace of oil well rig heating, the grate furnace of its feature in burner hearth is arranged the gasification combustion chamber in low temperature combustor and outside, between two combustion chambers, establish annular furnace wall; Annular furnace wall being evenly provided with some gas ports, the upper and lower end face of annular furnace wall establishes annular header tank, being communicated with by being embedded in annular furnace some convection current beam tubes within the walls between annular header tank; Annular header tank upper intake is positioned at outside body of heater; Body of heater is also provided with the air-supply arrangement and secondary blast device that communicate with low temperature combustor and gasification combustion chamber respectively.Heating crude oil heater outlet temperature is traditionally arranged to be steady state value, and namely crude oil flows out heating furnace after entering and arriving design temperature after heating furnace carries out heat exchange and is delivered to the next stop.In actual crude oil mining operations, because individual well day oil production instability administered by terminal, the crude oil amount being delivered to terminal is caused to change, the heat that terminal heating furnace is provided changes, so the outlet temperature of heating furnace should have respective change, heating furnace is in Effec-tive Function.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of for oil field terminal heating furnace air consumption closed-loop adjustment method, the method can identify after the crude oil throughput rate that enters the station changes, calculate the furnace outlet temperature made new advances, change furnace outlet temperature by electronic type governor valve control fuel delivery with this.
For solving the problems of the technologies described above, the present invention is just to provide a kind of for oil field terminal heating furnace air consumption closed-loop regulating system, and this regulating system comprises measurement module, data processing module and adjustment module.
Further preferably, described regulating system is only made up of above-mentioned module.
Described measurement module comprises mass flowmenter and thermometer.
Further preferably, described measurement module is only made up of mass flowmenter and thermometer.
Further preferably, described temperature, in respect of two, is respectively a thermometer and No. two thermometers.
Described mass flowmenter is installed on terminal crude oil import place, is mainly used in measuring the crude oil average discharge that enters the station in real time; A thermometer is embedded in apart from, 1.5 meters, ground, for measuring Buried Oil Pipelines surrounding soil temperature; No. two thermometers are arranged in place of pipeline center of furnace outlet place, for measuring the output temperature of external input after heating crude oil.
Described data processing module comprises signal input port, signal output port and central control board.
Further preferably, described data processing module is made up of signal input port, signal output port and central control board.
The flow signal that described mass flowmenter collects and the temperature signal that thermometer collects are connected to the signal input port of central control board, and furnace fuel gas import department electronic type control valve is connected to the signal output port of central control board.
Adjustment module is controlled by input signal and electronic type control valve.
Present invention also offers the above-mentioned regulating system of a kind of employing and carry out oil field terminal heating furnace air consumption closed-loop adjustment method, it comprises:
The first step, adopts the measurement module acquisition quality flow meter signal of regulating system, furnace outlet temperature signal and buried pipeline surrounding soil temperature signal;
Second step, according to the flowmeter collected, temperature value and oil pipeline design size parameter, the central control board of described data processing module utilizes crude oil multiphase flow to enter the temperature drop value before field, the next stop after journey temperature drop formulae discovery goes out crude oil departures;
Described multiphase flow is as follows along journey temperature drop formula:
T
Z＝T
O+(T
R-T
O)exp
-a×L
In formula:
Wherein: T
o---environment temperature, K;
T
r---the long multiphase pipeline origin temp for L, K;
T
z---the long multiphase pipeline terminal point temperature for L, K;
D---pipe diameter, m;
The mass flow of G---crude oil, kg/s;
The specific heat capacity of c---crude oil, J/ (kg DEG C);
3rd step, the calculating minimum inlet temperature of crude oil and crude oil are along journey temperature drop sum;
4th step, the temperature value sum obtain the 3rd step and furnace outlet temperature compare;
5th step, is delivered to electronic type control valve according to comparative result by output signal;
6th step, is cycled to repeat above-mentioned second step to the 5th step, until the difference of furnace outlet temperature and institute's calorific requirement (crude oil enters the minimum inlet temperature sum of field, the next stop along journey temperature drop value and crude oil) is not more than 3 DEG C.
Beneficial effect of the present invention:
Terminal heating furnace air consumption closed-loop adjustment method provided by the invention and regulating system can correspondingly regulate furnace fuel gas air inflow according to the situation of change of the crude oil amount that enters the station, thus change the outlet temperature of crude oil heater targetedly, not only the fuel gas that crude oil is normally carried but also can be saved consumption is met, under guaranteeing that heating furnace is in efficient operation.
Accompanying drawing explanation
Fig. 1 heating furnace air consumption closed-loop adjustment schematic diagram;
Fig. 2 heating furnace air consumption closed-loop adjustment flow chart.
Detailed description of the invention
The individual well extraction crude oil that terminal is administered is delivered to terminal together and carries out pressurization intensification, and the pressure energy that crude oil obtains and heat are mainly used in overcoming the potential energy loss along Cemented filling and scattering losses.
The present invention is just to provide a kind of for oil field terminal heating furnace air consumption closed-loop adjustment method and regulating system, and this regulating system comprises measurement module, data processing module and adjustment module.
Further preferably, described regulating system is only made up of above-mentioned module.
Described measurement module comprises mass flowmenter and thermometer.
Further preferably, described measurement module is only made up of mass flowmenter and thermometer.
Further preferably, described temperature, in respect of two, is respectively a thermometer and No. two thermometers.
Described mass flowmenter is installed on terminal crude oil import place, is mainly used in measuring the crude oil average discharge that enters the station in real time; A thermometer is embedded in apart from, 1.5 meters, ground, for measuring Buried Oil Pipelines surrounding soil temperature; No. two thermometers are arranged in place of pipeline center of furnace outlet place, for measuring the output temperature of external input after heating crude oil.
Described data processing module comprises signal input port, signal output port and central control board.
Further preferably, described data processing module is made up of signal input port, signal output port and central control board.
Described adjustment module is controlled by input signal and electronic type control valve.
The flow signal that described mass flowmenter collects and the temperature signal that thermometer collects are connected to the signal input port of central control board, and furnace fuel gas import department electronic type control valve is connected to the signal output port of central control board.According to the flow value collected, the parameters such as temperature value and oil pipeline design size, central control board utilizes crude oil multiphase flow to enter the temperature drop value before field, the next stop after journey temperature drop formulae discovery goes out crude oil departures, by minimum for crude oil inlet temperature (the minimum inlet temperature of crude oil is generally more than condensation point of crude oil 3-5 DEG C) with compare along journey temperature drop value sum and furnace outlet temperature, if the latter is greater than the former, illustrate that the heat that heating furnace provides is too much, furnace outlet temperature should be reduced, central control board outputs signal to electronic type control valve, the charge flow rate of furnace fuel gas is changed by continuous fuel metering gas control valve valve opening, furnace outlet place temperature is reduced with this, be not more than till 3 DEG C until the latter and the former temperature difference.
Present invention also offers the above-mentioned regulating system of a kind of employing and carry out oil field terminal heating furnace air consumption closed-loop adjustment method, it comprises:
The first step, adopts the measurement module acquisition quality flow meter signal of regulating system, furnace outlet temperature signal and buried pipeline surrounding soil temperature signal;
Second step, according to the flowmeter collected, temperature value and oil pipeline design size parameter, the central control board of described data processing module utilizes crude oil multiphase flow to enter the temperature drop value before field, the next stop after journey temperature drop formulae discovery goes out crude oil departures;
3rd step, the calculating minimum inlet temperature of crude oil and crude oil are along journey greenhouse cooling sum;
4th step, the temperature value sum obtain the 3rd step and furnace outlet temperature compare;
5th step, is delivered to electronic type control valve according to comparative result by output signal;
6th step, is cycled to repeat above-mentioned second step to the 5th step, until furnace outlet temperature and crude oil enter the minimum inlet temperature sum of field, next stop difference along journey temperature drop value and crude oil is not more than 3 DEG C.
Described multiphase flow is as follows along journey temperature drop formula:
T
Z＝T
O+(T
R-T
O)exp
-a×L
In formula:
Wherein: T
o---environment temperature, K;
T
r---the long multiphase pipeline origin temp for L, K;
T
z---the long multiphase pipeline terminal point temperature for L, K;
D---pipe diameter, m;
The mass flow of G---crude oil, kg/s;
The specific heat capacity of c---crude oil, J/ (kg DEG C).
Below adopt embodiment to describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.
As shown in Figure 1, provided by the inventionly to be made up of measurement module, data processing module and adjustment module for oil field terminal heating furnace air consumption closed-loop regulating system, described measurement module is made up of mass flowmenter and a thermometer and No. two thermometers, described mass flowmenter is installed on terminal crude oil import place, is mainly used in measuring the crude oil average discharge that enters the station in real time; A thermometer is embedded in apart from, 1.5 meters, ground, for measuring Buried Oil Pipelines surrounding soil temperature; No. two thermometers are arranged in place of pipeline center of furnace outlet place, for measuring the output temperature of external input after heating crude oil, described data processing module is made up of signal input port, signal output port and central control board, the flow signal that described mass flowmenter collects and the temperature signal that thermometer collects are connected to the signal input port of central control board, furnace fuel gas import department electronic type control valve is connected to the signal output port of central control board, and described adjustment module is controlled by input signal and electronic type control valve.
As shown in Figure 2, adopt the measurement module acquisition quality flow meter signal of above-mentioned regulating system, furnace outlet temperature signal and buried pipeline surrounding soil temperature signal, according to the flowmeter collected, temperature value and oil pipeline design size parameter, the central control board of described data processing module utilizes crude oil multiphase flow to enter the temperature drop value before field, the next stop after journey temperature drop formulae discovery goes out crude oil departures, the calculating minimum inlet temperature of crude oil and crude oil are along journey greenhouse cooling sum, the temperature value sum obtain the 3rd step and furnace outlet temperature compare, according to comparative result, output signal is delivered to electronic type control valve, be cycled to repeat above-mentioned second step to the 5th step, until furnace outlet temperature and crude oil enter the minimum inlet temperature sum of field, next stop difference along journey temperature drop value and crude oil is not more than 3 DEG C.
All above-mentioned this intellectual properties of primary enforcement, not setting restriction this new product of other forms of enforcement and/or new method.Those skilled in the art will utilize this important information, and foregoing is revised, to realize similar implementation status.But all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (7)
1., for an oil field terminal heating furnace air consumption closed-loop regulating system, it is characterized in that: comprise measurement module, data processing module and adjustment module.
2. closed-loop regulating system as claimed in claim 1, is characterized in that: described measurement module comprises mass flowmenter and thermometer.
3. closed-loop regulating system as claimed in claim 1 or 2, is characterized in that: described temperature, in respect of two, is respectively a thermometer and No. two thermometers.
4. the closed-loop regulating system as described in claims 1 to 3, is characterized in that: described mass flowmenter is installed on terminal crude oil import place, is mainly used in measuring the crude oil average discharge that enters the station in real time; A thermometer is embedded in apart from, 1.5 meters, ground, for measuring Buried Oil Pipelines surrounding soil temperature; No. two thermometers are arranged in place of pipeline center of furnace outlet place, for measuring the output temperature of external input after heating crude oil.
5. the closed-loop regulating system as described in Claims 1-4, is characterized in that: described data processing module comprises signal input port, signal output port and central control board.
6. the closed-loop regulating system as described in claim 1 to 5, it is characterized in that: the flow signal that described mass flowmenter collects and the temperature signal that thermometer collects are connected to the signal input port of central control board, furnace fuel gas import department electronic type control valve is connected to the signal output port of central control board.
7. adopt closed-loop regulating system described in claim 1 to 6 to carry out an oil field terminal heating furnace air consumption closed-loop adjustment method, it is characterized in that, comprising:
The first step, adopts the measurement module acquisition quality flow meter signal of regulating system, furnace outlet temperature signal and buried pipeline surrounding soil temperature signal;
Second step, according to the flowmeter collected, temperature value and oil pipeline design size parameter, the central control board of described data processing module utilizes crude oil multiphase flow to enter the temperature drop value before field, the next stop after journey temperature drop formulae discovery goes out crude oil departures;
3rd step, the calculating minimum inlet temperature of crude oil and crude oil are along journey greenhouse cooling sum;
4th step, the temperature value sum obtain the 3rd step and furnace outlet temperature compare;
5th step, is delivered to electronic type control valve according to comparative result by output signal;
6th step, is cycled to repeat above-mentioned second step to the 5th step, until furnace outlet temperature and crude oil enter the minimum inlet temperature sum of field, next stop difference along journey temperature drop value and crude oil is not more than 3 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115405863A (en) * | 2022-07-28 | 2022-11-29 | 国家管网集团北方管道有限责任公司 | Intelligent scheduling control system and method for oil pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405863A (en) * | 2022-07-28 | 2022-11-29 | 国家管网集团北方管道有限责任公司 | Intelligent scheduling control system and method for oil pipeline |
| CN115405863B (en) * | 2022-07-28 | 2023-09-01 | 国家管网集团北方管道有限责任公司 | Intelligent scheduling control system and method for oil pipeline |
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Application publication date: 20151111 |