CN101101270A - Petroleum product condensation point metering device - Google Patents
Petroleum product condensation point metering device Download PDFInfo
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- CN101101270A CN101101270A CNA200710016884XA CN200710016884A CN101101270A CN 101101270 A CN101101270 A CN 101101270A CN A200710016884X A CNA200710016884X A CN A200710016884XA CN 200710016884 A CN200710016884 A CN 200710016884A CN 101101270 A CN101101270 A CN 101101270A
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Abstract
A metering system of petroleum products solidification point, it is made up of control device, pressure device, oil bottle, measurement transducer, solenoid valve, pressure transducer, temperature transducer and refrigerating plant, of which pressure transducer, oil bottle, measurement transducer and solenoid valve are connected with pipeline compliably, temperature transducer is set in the measurement transducer, control device is connected apart with pressure device, refrigerating plant, solenoid valve, pressure transducer and temperature transducer, in term of the testing process of cooling curve under national standard defined experiment condition. The invention is under anticipative temperature spot of experiment, compressing to oil bottle by pressure device, driving the flow of sample in the pipeline, and confirming the freezing point of sample by testing the change of line pressure, providing the new method of testing petroleum products' freezing point.
Description
Technical field
The invention belongs to the automatic analytical instrument field, be specifically related to a kind of petroleum product condensation point metering device.
Background technology
Existing CNS GB/T510-83 " petroleum products questionable points method of testing " has stipulated employed measurement mechanism and corresponding measuring and operating method, its ultimate principle is that sample is contained in the test tube of regulation, and during the temperature that is cooled to expect, with tilt 45 degree and keeping 1 minute of test tube, vertically whether test tube is observed liquid level and is moved then.Process of the test is summarized as follows: the test tube that sample will be housed is fixed in the glass bushing with cork, vertically puts into cooling bath then.By the thermometer temperature of test sample at any time, when temperature that sample is cooled to expect,, and kept 1 minute test tube 45 degree that tilt.Whether the liquid level of observing sample moves, and record observations and again with sample preheating again, and determine the desired temperature of test next time according to the situation that observed last time if do not flow then improve the test desired temperature, otherwise reduces the expection test temperature.Repeat above-mentioned test procedure, up to finding the immobilising maximum temperature of liquid level to be the condensation point of sample.The method of above-mentioned standard code is widely used.
In above-mentioned standard specified in more detail the size of test tube, the size of the outer glass bushing of test tube, the charge weight of sample in the test tube, the immersion depth of glass bushing in cryostat, the test operation conditions such as definite principle of cryostat temperature are to guarantee the accuracy of experimental result.Because test tube, the glass bushing size stipulated in the standard are bigger than normal, cause the size of used cryostat bigger than normal, required refrigeration work consumption is also bigger.The observation liquid level mobility status that passes through of regulation determines that the method for condensation point also is difficult for realizing the automatic test of instrument simultaneously.
In the test operation of reality, the influence of cooling condition was very big when the condensation point that our discovery is measured was subjected to testing, and this test method is had relatively high expectations to the operant level of testing crew, manually pick and place trouble repeatedly, the human factor of testing crew also makes the precision of test findings and accuracy be affected.
Summary of the invention
Goal of the invention of the present invention is: at the deficiency that prior art exists, design a kind of simple to operate, good reproducibility, measuring accuracy height, petroleum product condensation point metering device that accuracy is good.
Technical scheme of the present invention is: a kind of petroleum product condensation point metering device, by control device 15, pressue device 1, lubricating cup 3, survey sensor 6, solenoid valve 9, pressure transducer 13, temperature sensor 14 and refrigerating plant 5 are formed, wherein pressue device 1, lubricating cup 3, survey sensor 6 is connected by pipeline successively with solenoid valve 9, refrigerating plant 5 is installed in survey sensor 6 outsides, pressure transducer 13 is connected with survey sensor 6 rear end pipelines by threeway 11, temperature sensor 14 is contained in the survey sensor 6, control device 15 respectively with pressue device 1, refrigerating plant 5, solenoid valve 9, pressure transducer 13 is connected with temperature sensor 14 circuit, according to the control of the cooling curve under the experiment condition of national Specification test process.
Further, described refrigerating plant 5 adopts semiconductor chilling plate.
Described control device 15 adopts microcontroller.
Described pressue device 1 adopts micro air pump.
Described survey sensor 6 adopts the metal tube structure of high thermal conductivity.
Described solenoid valve 9 adopts the bi-bit bi-pass straight-through electromagnetic valve.
Described pressure transducer 13 adopts electronic pressure transmitter.
Described temperature sensor 14 adopts platinum resistance thermometer sensor.
The present invention has following advantage compared with the prior art:
1, refrigerating plant of the present invention adopts the semiconductor chilling plate refrigeration, by control device the cooling curve of national Specification device is simulated in the control of cooling piece refrigeration work consumption, simple in structure, volume is little, refrigerating speed is fast, need not cold-producing medium, do not have machinery and pipeline, noiseless, reliability height.
2, the present invention comes lubricating cup is pressurizeed by pressue device at the desired temperature point of test, promotes sample and flows in pipeline, and by observing the condensation point that whether flows to determine sample, provide a kind of new method of petroleum products questionable points test.
3, utilization of the present invention is contained in the pressure transducer in the pipeline of survey sensor rear end, changes by the pressure of measuring the rear end pipeline, and whether the sample of knowing by inference indirectly in the survey sensor solidifies, the accuracy of measurement height.
4, the condensation point value of using condensation point value that the present invention records and national standard method to record has good consistance, and the credible result height that promptly uses this method to record need not be revised the result.
5, the same set of measurement mechanism of the present invention uses same measurement parameter, can measure multiple oil product, need not change measurement mechanism and measurement parameter.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of the present invention.
Among the figure: 1-pressue device, 2-flexible pipe A, 3-lubricating cup, 4-flexible pipe B, 5-refrigerating plant, 6-survey sensor, 7-flexible pipe C, 8-flexible pipe D, 9-solenoid valve, 10-flexible pipe E, 11-threeway, 12-flexible pipe F, 13-pressure transducer, 14-temperature sensor, 15-control device.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Petroleum product condensation point metering device of the present invention is by control device 15, pressue device 1, lubricating cup 3, survey sensor 6, solenoid valve 9, pressure transducer 13, temperature sensor 14 and refrigerating plant 5 are formed, wherein pressue device 1, lubricating cup 3, survey sensor 6 and solenoid valve 9 are successively by 2-flexible pipe A, 4-flexible pipe B, 7-flexible pipe C, 10-flexible pipe E connects, refrigerating plant 5 is installed in survey sensor 6 outsides, pressure transducer 13 is connected with survey sensor 6 rear end pipelines by threeway 11, temperature sensor 14 is contained in the survey sensor 6, control device 15 respectively with pressue device 1, refrigerating plant 5, solenoid valve 9, pressure transducer 13 is connected with temperature sensor 14 circuit, according to the control of the cooling curve under the experiment condition of national Specification test process.
To the structure of experimental provision, the temperature during test all has detailed regulation in " petroleum products questionable points method of testing " CNS, so for different each time processs of the test, the cooling condition of sample is all determined.The cooling curve that is to say each test is also determined.So we can cool off the cooling curve that the sample in one section pipeline is determined by above-mentioned standard, and detect whether the sample in the pipeline can flow when being cooled to desired temperature, the process of the test of mock standard regulation is determined the condensation point value of sample.
Among Fig. 1, refrigerating plant 5 of the present invention adopts semiconductor chilling plate, coated around survey sensor, control device 15 adopts microcontroller, and pressue device 1 adopts micro air pump, survey sensor 6 adopts the metal tube structure of high thermal conductivity, two ends are connected with 7-flexible pipe C with 4-flexible pipe B respectively up and down, and solenoid valve 9 adopts the bi-bit bi-pass straight-through electromagnetic valve, and pressure transducer 13 adopts electronic pressure transmitter, temperature sensor adopts platinum resistance thermometer sensor,, and each part mentioned above all adopts prior art.
Lubricating cup 3 is put into the tight lubricating cup of lubricating cup 3 bonnets for holding the container of sample with sample, and whole pipeline promptly is in sealing state.
Pressue device 1 pressurizes to lubricating cup 3 by 2-flexible pipe A, solenoid valve 9 is opened simultaneously, sample is discharged from 8-flexible pipe D by 4-flexible pipe B, survey sensor 6,7-flexible pipe C, threeway 11,10-flexible pipe E, solenoid valve 9, the another one outlet of threeway 11 communicates with pressure transducer 13 by 12-flexible pipe F, refrigerating plant 5 is a semiconductor chilling plate, and reaching wherein to survey sensor 6, sample freezes.Can detect sample temperature in the survey sensor 6 at any time by being contained in temperature sensor 14 in the survey sensor 6.
Process of the test of the present invention is as follows: sample is put into the tight lubricating cup 3 of lubricating cup 3 bonnets, make whole pipeline promptly be in sealing state.To lubricating cup 3 pressurizations, open simultaneously by solenoid valve 9 by 2-flexible pipe A for pressue device 1, and sample is discharged from 8-flexible pipe D by 4-flexible pipe B, survey sensor 6,7-flexible pipe C, threeway 11,10-flexible pipe E, solenoid valve 9, allows sample be full of pipeline.Pressue device 1, solenoid valve 9 are closed then, refrigerating plant 5 begins the sample that is enclosed in the survey sensor 6 is freezed, the temperature that controller 15 is surveyed according to temperature sensor 14, at any time adjust the refrigeration work consumption of refrigerating plant 5, making wherein, the temperature lowering curve of sample meets the cooling curve under the defined terms in the national standard.Pressue device 1 pressurizes to lubricating cup 3 once more when detecting sample and drop to desired temperature.Because solenoid valve 9 has cut out, when the pressure in the lubricating cup 3 raise, if the sample in the survey sensor 6 can flow, then the pressure in the survey sensor 6 rear end pipelines also and then raise, otherwise pressure is constant.Because pressure transducer 13 links to each other with the rear end pipeline of survey sensor 6 by threeway 11, so can measure the pressure variation of survey sensor 6 rear end pipelines by pressure transducer 13, whether the sample of knowing by inference indirectly in the survey sensor 6 can also flow.Determine the desired temperature of test next time according to the situation of test last time,, otherwise reduce the expection test temperature if do not flow then raising test desired temperature.Repeat above-mentioned test procedure, the immobilising maximum temperature of sample is the condensation point of sample in finding survey sensor 6.
Claims (8)
1, petroleum product condensation point metering device, by control device (15), pressue device (1), lubricating cup (3), survey sensor (6), solenoid valve (9), pressure transducer (13), temperature sensor (14) and refrigerating plant (5) are formed, pressue device (1) wherein, lubricating cup (3), survey sensor (6) is connected by pipeline successively with solenoid valve (9), refrigerating plant (5) is installed in survey sensor (6) outside, pressure transducer (13) is connected with survey sensor (6) rear end pipeline by threeway (11), temperature sensor (14) is contained in the survey sensor (6), control device (15) respectively with pressue device (1), refrigerating plant (5), solenoid valve (9), pressure transducer (13) is connected with temperature sensor (14) circuit, according to the control of the cooling curve under the experiment condition of national Specification test process.
2, petroleum product condensation point metering device according to claim 1 is characterized in that: described refrigerating plant (5) adopts semiconductor chilling plate.
3, petroleum product condensation point metering device according to claim 1 is characterized in that: described control device (15) adopts microcontroller.
4, petroleum product condensation point metering device according to claim 1 is characterized in that: described pressue device (1) adopts micro air pump.
5, petroleum product condensation point metering device according to claim 1 is characterized in that: described survey sensor (6) adopts the metal tube structure of high thermal conductivity.
6, petroleum product condensation point metering device according to claim 1 is characterized in that: described solenoid valve (9) adopts the bi-bit bi-pass straight-through electromagnetic valve.
7, petroleum product condensation point metering device according to claim 1 is characterized in that: described pressure transducer (13) adopts electronic pressure transmitter.
8, petroleum product condensation point metering device according to claim 1 is characterized in that: described temperature sensor (14) adopts platinum resistance thermometer sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710016884XA CN101101270A (en) | 2007-07-21 | 2007-07-21 | Petroleum product condensation point metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710016884XA CN101101270A (en) | 2007-07-21 | 2007-07-21 | Petroleum product condensation point metering device |
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| CN101101270A true CN101101270A (en) | 2008-01-09 |
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| CNA200710016884XA Pending CN101101270A (en) | 2007-07-21 | 2007-07-21 | Petroleum product condensation point metering device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728438A (en) * | 2013-12-16 | 2014-04-16 | 大连理工大学 | Automatic air pressurization control method for petroleum pour point measurement |
| CN104237295A (en) * | 2014-09-19 | 2014-12-24 | 王恩杰 | Diesel oil solidification point (pour point) determining apparatus with trace gravity flow method |
| CN106645264A (en) * | 2016-10-12 | 2017-05-10 | 中国石油大学(华东) | Differential pressure type crude oil condensation point measuring device and method |
| CN107643416A (en) * | 2017-10-25 | 2018-01-30 | 泉州市全通光电科技有限公司 | A kind of new automatic condensation point tester and its method of testing |
| CN107796843A (en) * | 2017-11-27 | 2018-03-13 | 蔡智韬 | A kind of automatic condensation point detector with micro-pressure gradient method |
| CN108593701A (en) * | 2018-05-22 | 2018-09-28 | 常州大学 | A kind of full-automatic solidification point measurement device and method |
| CN108732200A (en) * | 2018-04-25 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A kind of full-automatic solidification point tester and its test method |
| CN112612311A (en) * | 2020-12-15 | 2021-04-06 | 四川华拓光通信股份有限公司 | Method for realizing TEC control through bidirectional selection of MCU (micro control Unit) and TEC controller |
| CN112782041A (en) * | 2020-12-30 | 2021-05-11 | 中国人民解放军陆军勤务学院 | Automatic suction filtration measuring machine and suction filtration measuring method |
| CN114486992A (en) * | 2020-11-12 | 2022-05-13 | 中国石油化工股份有限公司 | High water content dissolved gas crude oil wall-sticking temperature testing device |
-
2007
- 2007-07-21 CN CNA200710016884XA patent/CN101101270A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728438B (en) * | 2013-12-16 | 2015-07-29 | 大连理工大学 | The automatic air pressure control method that petroleum sneeze-point is measured |
| CN103728438A (en) * | 2013-12-16 | 2014-04-16 | 大连理工大学 | Automatic air pressurization control method for petroleum pour point measurement |
| CN104237295A (en) * | 2014-09-19 | 2014-12-24 | 王恩杰 | Diesel oil solidification point (pour point) determining apparatus with trace gravity flow method |
| CN106645264A (en) * | 2016-10-12 | 2017-05-10 | 中国石油大学(华东) | Differential pressure type crude oil condensation point measuring device and method |
| CN107643416A (en) * | 2017-10-25 | 2018-01-30 | 泉州市全通光电科技有限公司 | A kind of new automatic condensation point tester and its method of testing |
| CN107643416B (en) * | 2017-10-25 | 2024-01-30 | 泉州市全通光电科技有限公司 | Novel full-automatic condensation point testing instrument and testing method thereof |
| CN107796843B (en) * | 2017-11-27 | 2023-10-31 | 蔡智韬 | Automatic condensation detector using micro-pressure tilting method |
| CN107796843A (en) * | 2017-11-27 | 2018-03-13 | 蔡智韬 | A kind of automatic condensation point detector with micro-pressure gradient method |
| CN108732200A (en) * | 2018-04-25 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A kind of full-automatic solidification point tester and its test method |
| CN108732200B (en) * | 2018-04-25 | 2020-10-16 | 国网山东省电力公司电力科学研究院 | Full-automatic condensation point tester and testing method thereof |
| CN108593701A (en) * | 2018-05-22 | 2018-09-28 | 常州大学 | A kind of full-automatic solidification point measurement device and method |
| CN114486992A (en) * | 2020-11-12 | 2022-05-13 | 中国石油化工股份有限公司 | High water content dissolved gas crude oil wall-sticking temperature testing device |
| CN112612311A (en) * | 2020-12-15 | 2021-04-06 | 四川华拓光通信股份有限公司 | Method for realizing TEC control through bidirectional selection of MCU (micro control Unit) and TEC controller |
| CN112782041B (en) * | 2020-12-30 | 2023-10-27 | 中国人民解放军陆军勤务学院 | Automatic suction filtration measuring machine and suction filtration measuring method |
| CN112782041A (en) * | 2020-12-30 | 2021-05-11 | 中国人民解放军陆军勤务学院 | Automatic suction filtration measuring machine and suction filtration measuring method |
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Open date: 20080109 |