CN1069969C - In-line analyzer for initial boiling point of oil - Google Patents
In-line analyzer for initial boiling point of oil Download PDFInfo
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- CN1069969C CN1069969C CN 97108228 CN97108228A CN1069969C CN 1069969 C CN1069969 C CN 1069969C CN 97108228 CN97108228 CN 97108228 CN 97108228 A CN97108228 A CN 97108228A CN 1069969 C CN1069969 C CN 1069969C
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- distiller
- oil product
- solenoid valve
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- temperature
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Abstract
The present invention discloses an online analyzer for the initial boiling points of oil products. The analyzer mainly comprises an atmospheric electromagnetic valve (1), an electric heater (5), a water cooling jacket (6), a single chip control system (7), a temperature measuring element (8), a distiller (9) and a stock layout electromagnetic valve (10). The analyzer solves the problems existing in the accurate measurement of the initial points of oil products through using the characteristic that mutation occurs in the temperature rise of the gas phase of oil products in a distillation process, and heating power can be automatically adjusted in the on-line manner. The analyzer has the advantages of accurate measured data, simple structure, convenient adjustment and correction, favorable repeatability and stability, etc. and is suitable for the detection of the initial boiling points of various oil products.
Description
The present invention relates to a kind of online oil product initial boiling point analyser.
In the prior art, be used for the analyser of online detection oil product initial boiling point both at home and abroad, two kinds of citation forms are generally arranged.One, the equilibrium flash formula.The technical characterstic of this kind analyser is, by the level regulator control sample rate of a float-type, to guarantee keeping a balance liquid level in distiller.Adopt the accurate pressure regulator simultaneously, distiller inner vapor pressure is remained in the constant scope.The throughput ratio that distiller top steam is extracted out bottom liquid is recently to be adjusted by the resistance of the equivalent orifice of distiller top injection port orifice and bottom vent pipe.As the PSG product (catalogue No41269) of exact science group (Precision Sci-entific Group), the blue online initial boiling point analyser of ZCLY type that refines the development of robotization institute etc. all belongs to this type of.Its two, the Engler distillation formula.The technical characterstic of this type of analyser is, through demarcating the quantitative oil product of graduated cylinder, enters the distiller of precooling, keeps normal pressure in it, and the heating distiller evaporates each component, the condensation of gas phase water condenser.Condensation product drips in gatherer of people.The detection of initial boiling point is to detect vapo(u)rizing temperature again after photoelectric detector on the gatherer survey to drip and realize by being installed in.The automatic distillation analyzer of producing as grace (Hone) instrument company suddenly etc.But above-mentioned analyser also exists following deficiency: the one, and equilibrium flash formula analyser need be adjusted accordingly float-type level regulator and pressure governor when analyzing different oil product, simultaneously, demarcates also inconvenient.Though Engler distillation formula analyser is not subjected to the influence of oil property, structure is complicated, and photoelectric detector exists flase drop and omission phenomenon.
The object of the present invention is to provide a kind of simple in structure, adjustment is easy, utilize oil product gas phase temperature rise in still-process to undergo mutation and detect the initial boiling point of oil product for feature, and can on-line automatic adjusting heating power, make it to satisfy detection requirement to different oil product initial boiling points, measurement data is accurate, can reach reliable and stable online oil product initial boiling point analyser in long-time running.
To achieve these goals, the present invention by the following technical solutions, design a kind of online oil product initial boiling point analyser, mainly by logical atmospheric electricity magnet valve (1), electric heater (5), cooling jacket (6), single-chip computer control system (7), temperature element (8), distiller (9) and stock layout solenoid valve (10) constitute, distiller (9) is fixed on the electric heater (5) of an outer dress cooling jacket (6), what logical atmospheric electricity magnet valve (1) was contained on distiller (9) top cylinder section side or the end face and communicated with its inside draws in the adapter, on the side of distiller (9) bottom or the bottom surface adapter of drawing that communicates with its inside is housed, temperature element (8), electric heater (5), logical atmospheric electricity magnet valve (1) links to each other with single-chip computer control system (7) by electric wire with stock layout solenoid valve (10), and stock layout solenoid valve (10) is installed on the nesting tube of distiller (9) side.
In the embodiment of this invention, the structure of analyser also can have following feature: have on distiller (9) top cylinder section end face or a certain side one communicate with distiller inside draw adapter, the center line of this adapter and the center line of distiller along the angle between the direction vertically upward less than 90 ℃, this adapter is connected with a three-way connection through the pipeline of logical atmosphere solenoid control, another path of logical atmosphere solenoid control communicates with atmosphere, and all the other of three-way connection two ends are connected it with the sample introduction pipeline of solenoid valve for sampling control and the air inlet pipeline of air inlet solenoid control respectively.The other end of sample introduction pipeline is connected with the oil sources of oil product pretreater, the other end of air inlet pipeline is connected with source of the gas, on a certain side, distiller bottom or bottom surface, have one communicate with distiller inside draw adapter, the center line of this adapter and the center line of distiller are not more than 90 ℃ along the angle between the vertical downward direction.
The present invention's technical scheme preferably can be: the top of distiller (9) is cylindric, the bottom is the combination shape of round platform+cylinder+round platform or the closed container of cylindric or sphere-like, distiller (9) bottom is heated evenly with electric heater (5) surface of contact, and handling safety is reliable.
The present invention's technical scheme preferably can also be: the temperature-sensitive position of temperature element (8) places distiller (9) top cylinder section and top to draw along distiller (9) center line and takes over the minimum point of junction or differ from 3 millimeters with on the interior position with the minimum point upper-lower position, record the initial boiling point accuracy height of oil product like this, error is little.
Online oil product initial boiling point analyser of the present invention is finished the method for detection task: when oil product after its gas phase temperature rise undergos mutation in the heating still-process, the gas phase temperature rise rate is by fast slack-off and during less than set-point, the gas phase temperature that temperature element records is the fore-running point value of oil product.Its specific implementation method is: when opening stock layout solenoid valve (10) by single-chip computer control system (7), behind logical atmospheric electricity magnet valve (1) and the solenoid valve for sampling (3), fresh oil sample enters distiller (9), after it is cooled off and wash a period of time, close solenoid valve for sampling (3), open air inlet solenoid valve (4), the gas of certain pressure enters distiller (9), after it is purged and cool off certain hour, close air inlet solenoid valve (4), open solenoid valve for sampling (3) once more, fresh oil sample enters distiller (9), finish sample introduction quantitatively after, close all solenoid valves.Well heater (5) energising begins distiller (9) is heated.When temperature element (8) detect the temperature rise of oil product gas phase with a certain speed Tv sudden change after, detect Tv again by fast slack-off and during less than set-point, the detected gas phase temperature of temperature element (8) is the fore-running point value of oil product.Said process is opened stock layout solenoid valve (10) after finishing once more, logical atmospheric electricity magnet valve (1) and solenoid valve for sampling (3), thus the process that realizes next cycle circulates.Repeat the above-mentioned course of work in this way again and again, just can make this analysis instrument detect the fore-running point value of oil product periodically.
Compared with prior art, analyser of the present invention has that simple in structure, adjustment is convenient, ratio of performance to price advantages of higher.The on-line automatic adjusting heating function of this analysis instrument energy makes it to satisfy the detection requirement to different oil product initial boiling points, and its accuracy, repeatability and good stability have fault self-diagnosis and processing capacity, 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, and 1 is logical atmospheric electricity magnet valve among the figure, the 2nd, and three-way connection, the 3rd, solenoid valve for sampling, the 4th, air inlet solenoid valve, the 5th, electric heater, the 6th, cooling jacket, the 7th, single-chip computer control system, the 8th, temperature element, the 9th, distiller, the 10th, stock layout solenoid valve.
As seen from the figure, distiller (9) is fixed on the electric heater (5) of outer dress cooling jacket (6), cooling jacket (6) is fixed on the box house bracing frame, draw adapter in distiller (9) top cylinder section, it is connected with an end of logical atmospheric electricity magnet valve (1), the top path of valve (1) control communicates with atmosphere, another pipeline of valve (1) control is connected with a three-way connection (2), the other two ends of three-way connection (2) are connected it with the pipeline that solenoid valve for sampling (3) and air inlet solenoid valve (4) are controlled separately respectively, the distiller bottom has to draw to be taken over the pipeline of controlling with stock layout solenoid valve (10) and links to each other, and the output that is installed in the temperature element (8) of distiller inside is delivered to single-chip computer control system (7) and handled.
Claims (2)
1, a kind of online oil product initial boiling point analyser, have injection port, nesting port and distiller, it is characterized in that: analyser is made of logical atmospheric electricity magnet valve (1), electric heater (5), cooling jacket (6), single-chip computer control system (7), temperature element (8), distiller (9) and stock layout solenoid valve (10), and its connected mode is:
A. distiller (9) is fixed on the electric heater (5) of outer dress cooling jacket (6), and it is cylindric that distiller (9) is that top is, and the bottom is the combination shape of round platform+cylinder+round platform or the closed container of cylindric or sphere-like;
B. have on distiller (9) top cylinder section end face or a certain side to draw to take over and be connected with an end of logical atmospheric electricity magnet valve (1), the top of valve (1) communicates with atmosphere, the other end pipeline of valve (1) control is connected with a three-way connection (2), all the other two ends of three-way connection (2) are connected it with the sample introduction pipeline of solenoid valve for sampling (3) control and the air inlet pipeline of air inlet solenoid valve (4) control respectively, the other end of sample introduction pipeline is connected with the oil sources of oil product pretreater, the other end of air inlet pipeline links to each other with source of the gas, has the adapter of drawing to link to each other with the stock layout pipeline of stock layout solenoid valve (10) control on the side of distiller (9) bottom or the bottom surface;
C. temperature element (8) is installed on distiller (9) top cylinder section, and its temperature-sensitive position places distiller (9) top cylinder section and top to draw along distiller (9) center line and takes over the minimum point of junction or differ from 3 millimeters with on the interior position with the minimum point upper-lower position;
D. single-chip computer control system (7) is controlled the break-make of each solenoid valve, distiller (9) is cooled off, washes, purges, cools off, and finish sample introduction quantitatively after, control electric heater (5) energising, to distiller (9) heating, the output of temperature element (8) is delivered to single-chip computer control system (7) and is handled.
2, analyser according to claim 1, it is characterized in that finishing the method for detection task: single-chip computer control system (7) is handled the detected oil product gas phase temperature of temperature element (8) signal, when the temperature rise of oil product gas phase with the sudden change of a certain speed and this speed by fast slack-off and during less than set-point, the oil product gas phase temperature signal that temperature element (8) records obtains the fore-running point value of tested oil product after treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108228 CN1069969C (en) | 1997-09-17 | 1997-09-17 | In-line analyzer for initial boiling point of oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108228 CN1069969C (en) | 1997-09-17 | 1997-09-17 | In-line analyzer for initial boiling point of oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1179541A CN1179541A (en) | 1998-04-22 |
| CN1069969C true CN1069969C (en) | 2001-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97108228 Expired - Fee Related CN1069969C (en) | 1997-09-17 | 1997-09-17 | In-line analyzer for initial boiling point of oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069969C (en) |
Families Citing this family (2)
| 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 |
| CN102495098B (en) * | 2011-12-12 | 2014-07-09 | 天津市洪江工控仪表有限公司 | Equal-space constant steam pressure measurement method and device for distillation range of petroleum product |
-
1997
- 1997-09-17 CN CN 97108228 patent/CN1069969C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1179541A (en) | 1998-04-22 |
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