CN1190739A - Fraction on-line analysis instrument for petroleum products - Google Patents
Fraction on-line analysis instrument for petroleum products Download PDFInfo
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- CN1190739A CN1190739A CN97108380A CN97108380A CN1190739A CN 1190739 A CN1190739 A CN 1190739A CN 97108380 A CN97108380 A CN 97108380A CN 97108380 A CN97108380 A CN 97108380A CN 1190739 A CN1190739 A CN 1190739A
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Abstract
The present invention discloses an on-line analyzer for distillation range of various petroleum products. Said on-line analyzer mainly is composed of distillation still, condenser, electroheater, water cooling heat exchanger, oil-collecting device, liquid droplet detecting device, sample quantitative device, temp-measuring element and single-chip computer control system. Said invented on-line analyzer can measure the boiling points and distillation end points of vecovery percents of 5%-95% by volume of distillate, and can provide the useful information required for optimum control of petroleum refining process for refinery. Its structure is simple, measured data are accurate, and its repeatability and stability are good.
Description
The present invention relates to a kind of fraction on-line analysis instrument for petroleum products.
In the prior art, be used to refine oil the method for production run on-line determination petroleum fraction boiling point both at home and abroad, mainly contain simulation distil vapor-phase chromatography, the way of distillation (comprising atmospheric distillation and decompression distillation).The simulation distil gas chromatographic analysis time is short, simple to operate, but system constitutes complexity, costs an arm and a leg.The PSG44520 distillation analysis device that mainly contains U.S. GCA company of employing distillation analysis method and automatic distillation apparatus (AUTOMATIC DIATILLATIONAPPARTUS/GCA CORPORATION ,-GB2111386A) etc.The distilling apparatus of PSG44520 distillation analysis device mainly is a horizontal tilt distillation column, is made up of a series of plate washers and cofferdam, adopts differential pressure pick-up to measure the raffinate liquid level, drives stepper motor control variable velocity tail pump, and by drain pump discharging raffinate.The analyzer structure is complicated, and to sample feeding flow velocity and the strict control of sample blowdown presssure, moving component is many, and maintenance is bigger, and automatic distillation apparatus is mainly used in lab analysis.
The object of the present invention is to provide a kind of simple in structurely, adjustment is convenient, can measure the boiling point and the end point of distillation of from 5% to 95% volume recovery per cent of distilland, and measurement data is accurate, the fraction on-line analysis instrument for petroleum products that long-time running is reliable and stable.
For achieving the above object, the present invention has adopted following technical scheme: design a kind of fraction on-line analysis instrument for petroleum products, mainly by distiller (17), condenser (5), electric heater (20), water cooling heat exchanger (19), oil intercepter (8), drop detector (10), sample proportioning device (12～16), temperature element (2) and single-chip computer control system (1) constitute, distiller (17) is fixed on the electric heater (20) of an outer dress water cooling heat exchanger (19), drawing of communicating with its inside is housed on the distiller (17) takes over two or many, respectively with condenser (5), sample proportioning device (12～16) is connected, perhaps other draw adapter can with solenoid valve for sampling (4), stock layout solenoid valve (18) etc. is connected, the other end of condenser (5) is connected by drawing to take over drop formation circular cone (9), drop forms circular cone (9) and is installed in the oil intercepter (8), oil intercepter (8) is connected with the sample retracting device with draining solenoid valve (11) by pipeline, and sample proportioning device (12～16) links to each other with sample pre-conditioner by pipeline.
The present invention's technical scheme preferably can be: oil intercepter (8) is a closed container, and its inner solenoid valve (7) and draining solenoid valve (11) that is communicated with or cuts off with atmosphere of control is housed thereon.Drop detector (10) also is housed on the oil intercepter (8), add in the thermal distillation sample process at analyser, solenoid valve (7) keeps oil intercepter (8) inside to communicate with atmosphere, and the signal that drips of the distillation condensed fluid that drop detector (10) will measure sends single-chip computer control system (1) processing to.
The present invention's technical scheme preferably also can be: condenser (5) is a metallic object that is right cylinder or polyhedron or is combined by arbitrary physique, condenser has sample channel and coolant channel in (5), electric cooling device (6) also is equipped with in condenser (5) inside, the constant temperature scope of condenser (5) can be set and control by single-chip computer control system (1), applicable to the detection of the sample of different boiling scope.
The present invention's technical scheme preferably can also be: sample proportioning device (12～16) mainly is made of Measuring glass (12), three-way connection (15) and three solenoid valves (13,14,16).Measuring glass (12) is a closed container, have on it two be connected with its inside draw adapter, wherein draw to take over and be connected for one with an end of a three-way connection (15), another root is drawn to take over and is connected with an end of a two-position three way magnetic valve (13), other two ends of two-position three way magnetic valve (13), one end links to each other with sample pre-conditioner through connecting line, and an end links to each other with atmosphere.Two ends in addition of three-way connection (15) respectively connect a solenoid valve (14,16), and solenoid valve (13) is connected with sample pre-conditioner by the road, and solenoid valve (15) is connected with distiller (17) by the road.This sample proportioning device (12～16) has advantages such as simple in structure, that error is little, hysteresis is little.
The present invention's technical scheme preferably can also be: the drop detection device mainly forms circular cone (9) and drop detector (10) by drop and constitutes, drop form circular cone (9) be a vertex of a cone vertically downward and cone inside the inverted cone of fluid passage is arranged.In the next liquid inflow cone of condenser (5), flow out along the conical surface, come together in vertex of a cone drippage through the inner passage.The drop that this circular cone flows out all has same shape.Drop detector (10) sends detected signal to single-chip computer control system (1) and handles, with the speed of control drop formation.
The present invention's technical scheme preferably can be again: temperature element (2), air inlet solenoid valve (4), electric cooling device (6), solenoid valve (7), drop detector (10), solenoid valve (11), solenoid valve (13), solenoid valve (14), solenoid valve (16), solenoid valve (18), electric heater (20) are connected with single-chip computer control system (1) by lead by connection terminal.
Fraction on-line analysis instrument for petroleum products of the present invention, the specific implementation method of finishing the online detection of boiling range is: close solenoid valve (13) by single-chip computer control system (1), solenoid valve (14), open solenoid valve (11), solenoid valve (16), sample in the oil intercepter (8) is drained, fresh sample enters distiller (17), it is cooled off and washes, close solenoid valve (7) then, solenoid valve (16), open solenoid valve (13), solenoid valve (14), draining solenoid valve (18) and air inlet solenoid valve (4), the gas of certain pressure enters distiller (17), it is purged and cools off, close air inlet solenoid valve (4) then, draining solenoid valve (18), solenoid valve (7), solenoid valve (11), solenoid valve (13), solenoid valve (14), the fresh sample of certain volume enter distiller (17), after sample introduction is finished, close solenoid valve (16), open solenoid valve (7), solenoid valve (13), solenoid valve (14), electric heater (20) energising is heated distiller (17).The gas phase that the interior sample of distiller (17) produces after the condensation, forms circular cone (9) through drop and splashes in the oil intercepter (8) in condenser (5).Being installed in drop detector (10) on the oil intercepter (8) sends detected information to single-chip computer control system (1) and handles.Single-chip computer control system (1) according to specific algorithm routine obtain being distilled sample from 1%～99% volume recovery per cent, record the boiling point of each volume recovery per cent by temperature element (2).From practical standpoint, analyser of the present invention is set in one-period and is detected that to be distilled the sample volume recovery per cent be 5%, 10%, 50%, 90%, 95% the boiling point and the end point of distillation, and show measured value and measured value curve in real time, also can pass through single-chip computer control system (1) and revise the setting check point.In the boiling range scope require measurement point to detect to finish after, an analytical cycle promptly comes to an end, and enters the process circulation of next cycle then.Repeat the above-mentioned course of work in this way again and again, just can make this analysis instrument detect the boiling point value of petroleum products boiling range scope periodically.
Compared with prior art, the present invention has following tangible advantage: 1, analyser can detect the boiling point and the end point of distillation of 5%, 10%, 50%, 90%, 95% volume recovery per cent of sample at an analytical cycle; 2, analyser of the present invention adopts fuzzy microcontroller control to realize regulating automatically heating power, has simple in structurely simultaneously, and adjustment is convenient, ratio of performance to price advantages of higher; 3, analyser of the present invention detect data accurately, repeatability and good stability, have fault self-diagnosis and Presentation Function, also can carry out data communication with computer system.
Below in conjunction with accompanying drawing analyser of the present invention is described in further detail: Fig. 1 is the structural representation of analyser of the present invention.1 is single-chip computer control system among the figure, the 2nd, and temperature element, the 3rd, three-way connection, the 4th, air inlet solenoid valve, the 5th, condenser, the 6th, electric cooling device, the 7th, solenoid valve, the 8th, oil intercepter, the 9th, drop forms circular cone, the 10th, drop detector, the 11st, solenoid valve, the 12nd, Measuring glass, the 13rd, solenoid valve, the 14th, solenoid valve, the 15th, three-way connection, the 16th, solenoid valve, the 17th, distiller, the 18th, draining solenoid valve, the 19th, water cooling heat exchanger, the 20th, electric heater.
As seen from the figure, distiller (17) is fixed on the electric heater (20) of an outer dress water cooling heat exchanger (19), the adapter of drawing that communicates with its inside is housed on the distiller (17), be connected with condenser (5), sample proportioning device (12～16) respectively, air inlet solenoid valve (4), draining solenoid valve (18) etc. is connected.Condenser (5) is connected by drawing to take over drop formation circular cone (9).Oil intercepter (8) is connected with the sample retracting device with blowdown solenoid valve (11) by pipeline.Sample proportioning device (12～16) is connected with sample pre-conditioner by pipeline.The output that is installed in the drop detector (1O) on the oil intercepter (8) and is installed in the inner temperature element (2) of distiller (17) is delivered to single-chip computer control system (1) and is handled.Among the figure with single-chip computer control system (1) by all devices that lead is connected, the connection terminal of each device that all drawn.
Claims (6)
1, a kind of fraction on-line analysis instrument for petroleum products, has injection port, nesting port, distiller and temperature measuring equipment etc., the invention is characterized in: analyser is mainly by distiller (17), condenser (5), electric heater (20), water cooling heat exchanger (19), oil intercepter (8), drop detector (10), sample proportioning device (12～16), temperature element (2) and single-chip computer control system (1) constitute, distiller (17) is fixed on the electric heater (20) of an outer dress water cooling heat exchanger (19), drawing of communicating with its inside is housed on the distiller (17) takes over two or many, respectively with condenser (5), sample proportioning device (12～16) is connected, perhaps other draw adapter can with solenoid valve for sampling (4), stock layout solenoid valve (18) etc. is connected, the other end of condenser (5) is connected by drawing to take over drop formation circular cone (9), drop forms circular cone (9) and is installed in the oil intercepter (8), oil intercepter (8) is connected with the sample retracting device with draining solenoid valve (11) by pipeline, and sample proportioning device (12～16) links to each other with sample pre-conditioner by pipeline.
2, analyser according to claim 1, it is characterized in that oil intercepter (8) is a closed container, its inner solenoid valve (7) and draining solenoid valve (11) that is communicated with or cuts off with atmosphere of control is housed on oil intercepter (8), drop detector (10) also is housed on the oil intercepter (8).
3, analyser according to claim 1, it is characterized in that condenser (5) is a metallic object that is right cylinder or polyhedron or is combined by arbitrary physique, condenser has sample channel and coolant channel in (5), and electric cooling device (6) also is equipped with in condenser (5) inside.
4, analyser according to claim 1, it is characterized in that sample proportioning device (12～16) mainly is made of Measuring glass (12), three-way connection (15) and three solenoid valves (13,14,16), Measuring glass (12) is a closed container, have on the Measuring glass (12) two be connected with its inside draw adapter, wherein one is connected with a two-position three way magnetic valve (13), and another root links to each other with solenoid valve (16) with solenoid valve (14) by three-way connection (15).
5, analyser according to claim 1 is characterized in that the drop detection device forms circular cone (9) and drop detector (10) by drop and constitutes, and drop forms the inverted cone that circular cone (9) has fluid passage in being.
6,, it is characterized in that temperature element (2), air inlet solenoid valve (4), electric cooling device (6), solenoid valve (7), drop detector (10), solenoid valve (11), solenoid valve (13), solenoid valve (14), solenoid valve (16), solenoid valve (18) and electric heater (20) are connected with single-chip computer control system (1) by lead by connection terminal according to the described analyser of one of claim 1～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108380A CN1190739A (en) | 1997-12-27 | 1997-12-27 | Fraction on-line analysis instrument for petroleum products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97108380A CN1190739A (en) | 1997-12-27 | 1997-12-27 | Fraction on-line analysis instrument for petroleum products |
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| Publication Number | Publication Date |
|---|---|
| CN1190739A true CN1190739A (en) | 1998-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97108380A Pending CN1190739A (en) | 1997-12-27 | 1997-12-27 | Fraction on-line analysis instrument for petroleum products |
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| CN (1) | CN1190739A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004143A (en) * | 2010-10-25 | 2011-04-06 | 辽宁同辉科技发展有限公司 | Full-automatic system for measuring distillation range of coke light oil product |
| CN101226176B (en) * | 2008-02-01 | 2011-09-21 | 中国科学院山西煤炭化学研究所 | Method for measuring boilling point distribution of coal and rock oil deriving heavy oil products with liquid phase chromatography |
| CN102565117A (en) * | 2012-01-18 | 2012-07-11 | 辽宁同辉科技发展有限公司 | Device for quantitatively measuring components in coking crude benzene by distillation drop method |
| CN102590440A (en) * | 2012-01-18 | 2012-07-18 | 辽宁同辉科技发展有限公司 | Quantitative determination method for component distillation drops of coking crude benzol |
| CN107561116A (en) * | 2017-10-23 | 2018-01-09 | 哈尔滨天龙仪器制造有限公司 | Temperature section retracting device is pressed for Measurement of distilled process instrument |
| CN114720506A (en) * | 2021-01-05 | 2022-07-08 | 中国石油天然气股份有限公司 | Device and method for testing final distillation point |
-
1997
- 1997-12-27 CN CN97108380A patent/CN1190739A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226176B (en) * | 2008-02-01 | 2011-09-21 | 中国科学院山西煤炭化学研究所 | Method for measuring boilling point distribution of coal and rock oil deriving heavy oil products with liquid phase chromatography |
| CN102004143A (en) * | 2010-10-25 | 2011-04-06 | 辽宁同辉科技发展有限公司 | Full-automatic system for measuring distillation range of coke light oil product |
| CN102565117A (en) * | 2012-01-18 | 2012-07-11 | 辽宁同辉科技发展有限公司 | Device for quantitatively measuring components in coking crude benzene by distillation drop method |
| CN102590440A (en) * | 2012-01-18 | 2012-07-18 | 辽宁同辉科技发展有限公司 | Quantitative determination method for component distillation drops of coking crude benzol |
| CN107561116A (en) * | 2017-10-23 | 2018-01-09 | 哈尔滨天龙仪器制造有限公司 | Temperature section retracting device is pressed for Measurement of distilled process instrument |
| CN114720506A (en) * | 2021-01-05 | 2022-07-08 | 中国石油天然气股份有限公司 | Device and method for testing final distillation point |
| CN114720506B (en) * | 2021-01-05 | 2024-05-28 | 中国石油天然气股份有限公司 | Device and method for testing final distillation point |
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