CN216846683U - Offshore platform export crude oil saturation vapor pressure measuring device and online measuring device - Google Patents
Offshore platform export crude oil saturation vapor pressure measuring device and online measuring device Download PDFInfo
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- CN216846683U CN216846683U CN202220593932.1U CN202220593932U CN216846683U CN 216846683 U CN216846683 U CN 216846683U CN 202220593932 U CN202220593932 U CN 202220593932U CN 216846683 U CN216846683 U CN 216846683U
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Abstract
The utility model relates to a crude oil saturated vapor pressure measurement technical field, more specifically relates to a crude oil saturated vapor pressure determinator and online measuring device for offshore platform export, wherein the vapor pressure determinator comprises a gas chamber and a liquid chamber which are mutually communicated, a gas-liquid chamber connector is arranged between the gas chamber and the liquid chamber, and the gas chamber is provided with a first interface, a pressure sensing connector and a cleaning valve; and a second interface and a gas valve are arranged in the liquid chamber. An object of the utility model is to overcome prior art not enough, provide a can abluent offshore platform defeated crude oil saturation vapor pressure apparatus outward, wash through regularly vapor pressure apparatus, promote measurement accuracy.
Description
Technical Field
The utility model relates to a crude oil saturation vapor pressure measures technical field, more specifically relates to an offshore platform defeated crude oil saturation vapor pressure apparatus and on-line measuring device outward.
Background
Saturated vapor pressure is a major physical property analysis index during storage, transportation and sale of crude oil, and is used as quality evaluation data for measuring whether commercial crude oil has been subjected to stable treatment. The qualified crude oil after the process treatment of the offshore oil and gas production device is mostly transported out through pipelines or oil extraction vessels. In order to ensure the quality of crude oil, the crude oil needs to be sampled and analyzed periodically in the production process. When crude oil is transported out through a pipeline, although an online measuring meter is installed on an online sales metering flowmeter, pressure, density and water content can be measured, and the volume of the crude oil under a working condition is converted into a standard condition volume, the crude oil subjected to primary treatment sometimes contains a certain amount of dissolved gas, so that the metering accuracy is influenced. Therefore, in the offshore oil and gas production process, the crude oil in the crude oil treatment process needs to be sampled regularly so as to measure the saturated vapor pressure of the crude oil and further adjust the production operation parameters. The existing crude oil saturated vapor pressure measuring device cannot be cleaned, residual samples in the device are easy to cause reduction of measuring accuracy after long-term use, and the measuring instrument is not sensitive enough and the service life is reduced due to long-term adhesion of crude oil.
The prior patent discloses a full-automatic saturated vapor pressure measuring device which can measure the saturated vapor pressure of crude oil, but the measuring device cannot be cleaned.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a can wash offshore platform defeated crude oil saturation vapor pressure survey ware outward.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the saturated vapor pressure tester for the crude oil output from the offshore platform comprises a gas chamber and a liquid chamber which are communicated with each other, wherein a gas-liquid chamber connector is arranged between the gas chamber and the liquid chamber, and the gas chamber is provided with a first interface, a pressure sensing connector and a cleaning valve; and a second interface and a gas valve are arranged in the liquid chamber.
The liquid chamber of the utility model is used for temporarily storing crude oil sampled from a crude oil system, and the gas chamber is used for storing the crude oil which is changed into gaseous state after passing through a constant temperature water bath with a certain temperature, namely oil gas; opening a gas-liquid chamber connector to enable the liquid chamber to be communicated with the gas chamber, and enabling oil gas to enter the gas chamber from the liquid chamber and then enter the pressure measurement through the pressure sensing connector; the cleaning valve is used for controlling whether the clean energy can flow into the gas chamber or not, the first interface and the second interface can be used for discharging the liquid clean energy, and the gas valve can be used for discharging the gas clean energy; when the first interface is closed, the clean energy firstly passes through the cleaning of the gas chamber and then enters the liquid chamber, and finally the oil gas is discharged from a gas valve of the liquid chamber. Therefore, the vapor pressure measuring device of the present invention can be cleaned by the external cleaning mechanism. The second interface may also be used for sampling of crude oil.
Preferably, the first interface is arranged at the bottom of the gas chamber, the cleaning valve is arranged at the top of the gas chamber, and the pressure sensing joint is arranged at the side part of the gas chamber; the second interface is arranged at the bottom of the liquid chamber, and the gas valve is arranged at the top of the liquid chamber.
The utility model also provides an online measuring device of defeated crude oil saturation vapor pressure of offshore platform, include vapor pressure measurement ware, be used for measuring the measurement mechanism of crude oil saturation vapor pressure, be used for driving the drive arrangement that vapor pressure measurement ware vibrates, be used for controlling automatic sampling and measuring PLC control system, measurement mechanism includes the pressure tester, establishes the thermostatic water bath in measurement mechanism, place measurement mechanism's thermostatic water bath in the vapor pressure measurement ware, drive arrangement is located measurement mechanism outside and is connected with the vapor pressure measurement ware, pressure sensing connects with pressure tester intercommunication, PLC control system respectively with vapor pressure measurement ware, drive arrangement, measurement mechanism communication connection.
Preferably, the measuring mechanism further comprises a constant temperature sleeve and a constant temperature water bath control device, the vapor pressure measuring device is arranged in the constant temperature sleeve, the driving device penetrates through the constant temperature sleeve and is connected with the vapor pressure measuring device, the constant temperature water bath control device is arranged in the constant temperature sleeve, and the constant temperature water bath control device is in communication connection with the PLC control system.
Preferably, thermostatic waterbath control device includes refrigeration coil pipe, heating coil pipe, temperature sensor, level sensor, refrigeration coil pipe heating coil pipe temperature sensor level sensor all locate in the constant temperature cover and all with PLC control system communication connection.
Preferably, the steam pressure measuring device further comprises a cleaning mechanism for cleaning the steam pressure measuring device, the cleaning mechanism comprises clean energy, a cleaning pipeline and a blow-down pipeline, the cleaning pipeline is communicated with the cleaning valve, the blow-down pipeline is provided with a blow-down valve, the blow-down pipeline is communicated with the steam pressure measuring device, and when the cleaning valve and the blow-down valve are both opened, the clean energy can flow into the steam pressure measuring device from the cleaning pipeline through the cleaning valve and then is discharged from the blow-down pipeline.
Preferably, the clean energy source comprises hot water from a hot water system, the cleaning pipeline comprises a hot water pipeline, a hot water valve is arranged in the hot water pipeline, and the hot water pipeline is communicated with the cleaning valve; the sewage discharge pipeline comprises a liquid sewage discharge pipeline, a liquid valve is arranged in the liquid sewage discharge pipeline, and the liquid valve is respectively communicated with the first connector and the second connector; when the hot water valve and the liquid valve are both opened, hot water can be conveyed to the gas chamber and the liquid chamber from the hot water system through the hot water pipeline and then is discharged through the liquid sewage discharge pipeline.
Preferably, the clean energy further comprises nitrogen from a nitrogen system, the cleaning pipeline further comprises a nitrogen pipeline, a nitrogen valve is arranged in the nitrogen pipeline, and the nitrogen pipeline is communicated with the cleaning valve; the sewage discharge pipeline also comprises a gas sewage discharge pipeline which is communicated with the gas valve; when the nitrogen valve, the cleaning valve and the gas valve are all opened, nitrogen can be conveyed to the gas chamber and the liquid chamber from the nitrogen system through the nitrogen pipeline and then is discharged through the gas sewage discharge pipeline.
Preferably, the system further comprises a crude oil conveying pipeline for conveying crude oil, a crude oil valve is arranged in the crude oil conveying pipeline, and the crude oil conveying pipeline is communicated with the second interface.
Preferably, a first flow sensor is arranged behind the gas valve, a second flow sensor is arranged behind the liquid valve, and a third flow sensor is arranged at the front end of the crude oil valve.
Preferably, the PLC control system includes an upper computer, a power supply module, an analog input module, a digital output module, and a digital input module, the analog input module, the digital output module, and the digital input module are all in communication connection with the upper computer, the power supply module is respectively electrically connected with the upper computer, the analog input module, the digital output module, and the digital input module, and the upper computer is respectively in communication connection with the vapor pressure gauge and the measuring mechanism.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the vapor pressure measuring device is cleaned by the cleaning mechanism, so that no crude oil or oil gas residue exists in the vapor pressure measuring device before each measurement, the interference is eliminated, and the measurement accuracy is improved;
(2) the flow monitoring is carried out on the nitrogen during cleaning through the first flow sensor, and all nitrogen is ensured to be exhausted after cleaning is finished; the flow of the hot water during cleaning is monitored through the second flow sensor, so that all dirty liquid can be emptied after cleaning is finished, and the accuracy of measurement is further improved;
(3) the flow of the crude oil during sampling is monitored by the third flow sensor, so that the measurement accuracy is further improved by comparing and calculating the flow with the subsequent saturated vapor pressure.
Drawings
Fig. 1 is a schematic structural diagram of the saturated vapor pressure measuring device for crude oil exported from an offshore platform according to the present invention;
FIG. 2 is a schematic structural diagram of the device for online measurement of saturated vapor pressure of crude oil exported from an offshore platform according to the present invention;
fig. 3 is a schematic structural diagram of the measuring mechanism of the present invention.
The graphic symbols are illustrated as follows:
1. a vapor pressure measuring device; 11. a gas chamber; 111. a first interface; 112. a pressure sensing junction; 12. a liquid chamber; 121. a second interface; 13. a gas-liquid chamber connector; 2. a measuring mechanism; 21. a pressure tester; 22. a constant temperature sleeve; 23. a constant temperature water bath control device; 231. a refrigeration coil; 232. a heating coil; 233. a temperature sensor; 234. a liquid level sensor; 3. a cleaning mechanism; 31. cleaning energy sources; 311. a hot water system; 312. a nitrogen system; 32. cleaning a pipeline; 321. a hot water pipeline; 322. a nitrogen line; 331. a liquid blowdown line; 332. a gas blowdown line; 41. cleaning the valve; 42. a hot water valve; 43. a liquid valve; 44. a nitrogen valve; 45. a gas valve; 46. a crude oil valve; 51. a first flow sensor; 52. a second flow sensor; 53. a third flow sensor; 6. a crude oil transfer line; 7. a PLC control system; 8. a drive device.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Example 1
As shown in fig. 1, the following is an embodiment of the saturated vapor pressure measuring device for crude oil exported from an offshore platform of the present invention, including a gas chamber 11 and a liquid chamber 12 which are communicated with each other, a gas-liquid chamber connector 13 is disposed between the gas chamber 11 and the liquid chamber 12, and the gas chamber 11 is provided with a first interface 111, a pressure sensing connector 112, and a cleaning valve 41; the second port 121 and the gas valve 45 are provided in the liquid chamber 12.
As an embodiment of the present invention, the first interface 111 is disposed at the bottom of the gas chamber 11, the purge valve 41 is disposed at the top of the gas chamber 11, and the pressure sensing connector 112 is disposed at the side of the gas chamber 11; the second port 121 is disposed at the bottom of the liquid chamber 12, and the gas valve 45 is disposed at the top of the liquid chamber 12.
The cleaning valve 41 disposed at the top of the gas chamber 11 can maximize the range through which the clean energy 31 can flow, and the first port 111 and the second port 121 can be used to discharge the contaminated liquid during the cleaning process.
Example 2
Fig. 2 to fig. 3 show a first embodiment of the present invention relates to an online measuring device for saturated vapor pressure of crude oil exported from offshore platform, including the above-mentioned vapor pressure measuring device 1 for sampling from crude oil system, a measuring mechanism 2 for measuring saturated vapor pressure of crude oil, a driving device 8 for driving vapor pressure measuring device 1 to oscillate, a PLC control system 7 for controlling automatic sampling and measuring, measuring mechanism 2 includes a pressure tester 21, a constant temperature water bath is provided in measuring mechanism 2, a constant temperature water bath provided in measuring mechanism 2 is provided in vapor pressure measuring device 1, driving device 8 is provided outside measuring mechanism 2 and connected with vapor pressure measuring device 1, vapor pressure measuring device 1 communicates with pressure tester 21, PLC control system 7 communicates with vapor pressure measuring device 1, driving device 8, and vapor pressure measuring device 2 respectively.
The utility model discloses a vapor pressure tester 1 is arranged in following the crude oil system sample, sets up the thermostatic bath in the measuring mechanism 2, through placing vapor pressure tester 1 in the thermostatic bath, then measures the vapor pressure when being in balanced state with crude oil under this temperature, obtains the saturated vapor pressure of crude oil under this temperature; the PLC control system 7 can realize the automation of the whole sampling and measuring process, avoid the flash loss during sampling, reduce the experimental error caused by manual operation, and reduce the pressure of an inspector, and the thermostatic water bath is used for providing a proper temperature environment for the measurement of the saturated vapor pressure of the crude oil; the driving device 8 is used for driving the vapor pressure measuring device 1 to move, so that the vapor pressure measuring device 1 oscillates in the constant temperature sleeve 22, and the requirements during measurement are met.
As an embodiment of the present invention, the measuring mechanism 2 further includes a constant temperature jacket 22 and a constant temperature water bath control device 23, the vapor pressure measuring device 1 is internally provided in the constant temperature jacket 22, the driving device 8 passes through the constant temperature jacket 22 and is connected to the vapor pressure measuring device 1, the constant temperature water bath control device 23 is internally provided in the constant temperature jacket 22, and the driving device 8 and the constant temperature water bath control device 23 are both in communication connection with the PLC control system 7.
The constant temperature sleeve 22 is used for preserving heat, reduces heat dissipation, enables water in the constant temperature sleeve 22 to keep original temperature, saves energy and has higher stability. The thermostatic water bath control device 23 is used for keeping the water bath in a thermostatic state, so that the saturated vapor pressure of the crude oil can be conveniently measured. The PLC control system 7 can control the driving device 8 and the thermostatic waterbath control device 23 to meet the measurement requirement.
As an embodiment of the present invention, the thermostatic waterbath control device 23 includes the refrigeration coil 231, the heating coil 232, the temperature sensor 233, the liquid level sensor 234, and the refrigeration coil 231, the heating coil 232, the temperature sensor 233, the liquid level sensor 234 are all located in the thermostatic sleeve 22 and are all connected to the PLC control system 7.
As an embodiment of the utility model, still including being used for carrying out abluent wiper mechanism 3 to vapor pressure measurement ware 1, wiper mechanism 3 includes clean energy 31, cleaning pipe way 32, sewage pipes, cleaning pipe way 32 and cleaning valve 41 intercommunication are equipped with the blowdown valve in sewage pipes, sewage pipes and vapor pressure measurement ware 1 intercommunication, when cleaning valve 41 and blowdown valve all open, clean energy 31 can follow cleaning pipe way 32 and discharge from sewage pipes after cleaning valve 41 flows into vapor pressure measurement ware 1.
The wiper mechanism 3 is used for wasing vapor pressure measurement ware 1 after measuring, makes vapor pressure measurement ware 1 homoenergetic after measuring each time obtain cleanly, has guaranteed simultaneously that vapor pressure measurement ware 1 before measuring each time is clean, the crude oil that does not have the last sampling is remaining, the utility model discloses an aspect can improve measuring accuracy, and on the other hand also can prolong measuring equipment's life. Clean energy sources 31 include, but are not limited to, water, other non-polluting cleaning solutions, non-polluting gases that do not react with crude oil, etc.; the cleaning pipeline 32 is used for conveying the clean energy 31 so that the clean energy 31 can enter the vapor pressure measuring device 1; the sewage discharge pipeline is used for conveying the sewage after the vapor pressure tester 1 is cleaned; the purge valve 41 serves as a switch for controlling whether the clean energy 31 flows into the purge line 32, and the blowdown valve serves as a switch for blowdown. The purge valve 41 cooperates with the blow-down valve to perform cleaning.
As an embodiment of the present invention, the clean energy source 31 includes hot water from the hot water system 311, the cleaning pipeline 32 includes a hot water pipeline 321, a hot water valve 42 is disposed in the hot water pipeline 321, and the hot water pipeline 321 is communicated with the cleaning valve 41; the sewage discharge pipeline comprises a liquid sewage discharge pipeline 331, a liquid valve 43 is arranged in the liquid sewage discharge pipeline 331, and the liquid valve 43 is respectively communicated with the first connector 111 and the second connector 121; when the hot water valve 42 and the liquid valve 43 are both opened, hot water can be delivered from the hot water system 311 to the gas chamber 11 and the liquid chamber 12 through the hot water pipe 321, and then discharged through the liquid drain pipe 331.
The hot water pipeline 321 is used for delivering hot water in the hot water system 311 to the vapor pressure measuring device 1 for cleaning, and the hot water is a clean energy source 31 which is easy to obtain, pollution-free and low in cost, and can meet general cleaning requirements.
As an embodiment of the utility model, still including the crude oil conveying line 6 of carrying crude oil, be equipped with crude oil valve 46 in crude oil conveying line 6, crude oil conveying line 6 and second interface 121 intercommunication.
The second port 121 is also used for sampling of crude oil, during which crude oil from the crude oil system passes from the crude oil line through the second port 121 into the liquid chamber 12.
As an embodiment of the present invention, a third flow sensor 53 is further provided at the front end of the crude oil valve 46.
The third flow sensor 53 can monitor the amount of the sampled crude oil, and compare the amount with the finally measured saturated vapor pressure of the crude oil, thereby improving the measurement accuracy.
Example 3
The following is a second embodiment of the device for online measurement of saturated vapor pressure of crude oil exported from offshore platform, this embodiment is similar to embodiment 2, except that the clean energy source 31 further comprises nitrogen from the nitrogen system 312, the cleaning pipeline 32 further comprises a nitrogen pipeline 322, a nitrogen valve 44 is arranged in the nitrogen pipeline 322, and the nitrogen pipeline 322 is communicated with the cleaning valve 41; the sewage pipeline also comprises a gas sewage pipeline 332, and the gas sewage pipeline 332 is communicated with the gas valve 45; when the nitrogen valve 44, the purge valve 41, and the gas valve 45 are opened, nitrogen is supplied from the nitrogen system 312 to the gas chamber 11 and the liquid chamber 12 through the nitrogen line 322 and then discharged through the gas exhaust line 332.
Nitrogen is non-flammable, has a large proportion in the atmosphere, is easy to obtain, belongs to clean energy 31, and does not pollute the environment, so that after the vapor pressure measuring device 1 is cleaned by hot water, secondary cleaning and drying are carried out by the nitrogen, other impurities in the vapor pressure measuring device 1 can be ensured, and meanwhile, a clean and dry environment can be provided for the vapor pressure measuring device 1 to protect the vapor pressure measuring device. It is within the knowledge of a person skilled in the art to clean and dry the vapor pressure measuring device 1 with other inert gases.
In one embodiment of the present invention, a first flow sensor 51 is provided behind the gas valve 45.
The discharge amount of nitrogen can be monitored by the first flow sensor 51, and it is ensured that the final nitrogen is exhausted from the vapor pressure measuring device 1 without interfering with the measurement of the saturated vapor pressure of the crude oil.
Example 4
The utility model relates to an online measuring device's of offshore platform defeated crude oil saturation vapor pressure third embodiment, this embodiment is similar with embodiment 2, the difference lies in, PLC control system 7 includes the host computer, power module, analog input module, digital output module and digital input module, analog input module, digital output module, digital input module all with host computer communication connection, power module respectively with the host computer, analog input module, digital output module, digital input module electricity is connected, the host computer respectively with vapor pressure measurement ware 1 and measuring mechanism 2 communication connection.
The upper computer is used for sending out a control instruction, the analog quantity input module can input all analog quantities, the digital quantity input module inputs digital quantities, the upper computer is finally utilized for analyzing and calculating, the digital quantity output module can also be used for outputting the digital quantities, and the power supply provides electric energy for all the modules so that all the modules can operate.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A crude oil saturation vapor pressure tester for offshore platform export is characterized by comprising a gas chamber (11) and a liquid chamber (12) which are communicated with each other, wherein a gas-liquid chamber connector (13) is arranged between the gas chamber (11) and the liquid chamber (12), and the gas chamber (11) is provided with a first interface (111), a pressure sensing connector (112) and a cleaning valve (41); a second connector (121) and a gas valve (45) are arranged in the liquid chamber (12).
2. An online measuring device for saturated vapor pressure of crude oil exported from an offshore platform, which is characterized by comprising the vapor pressure measuring device (1) as claimed in claim 1, a measuring mechanism (2) for measuring the saturated vapor pressure of crude oil, a driving device (8) for driving the vapor pressure measuring device (1) to oscillate, and a PLC control system (7) for controlling automatic sampling and measurement, wherein the measuring mechanism (2) comprises a pressure tester (21), a constant-temperature water bath is arranged in the measuring mechanism (2), the vapor pressure measuring device (1) is arranged in the constant-temperature water bath of the measuring mechanism (2), the driving device (8) is arranged outside the measuring mechanism (2) and connected with the vapor pressure measuring device (1), the pressure sensing joint (112) is communicated with the pressure tester (21), and the PLC control system (7) is respectively communicated with the vapor pressure measuring device (1), The driving device (8) and the measuring mechanism (2) are in communication connection.
3. The offshore platform export crude oil saturated vapor pressure online measurement device according to claim 2, wherein the measurement mechanism (2) further comprises a constant temperature jacket (22) and a constant temperature water bath control device (23), the vapor pressure tester (1) is arranged in the constant temperature jacket (22), the driving device (8) passes through the constant temperature jacket (22) and is connected with the vapor pressure tester (1), the constant temperature water bath control device (23) is arranged in the constant temperature jacket (22), and the constant temperature water bath control device (23) is in communication connection with the PLC control system (7).
4. The offshore platform export crude oil saturation vapor pressure on-line measuring device according to claim 3, wherein the thermostatic water bath control device (23) comprises a refrigeration coil (231), a heating coil (232), a temperature sensor (233) and a liquid level sensor (234), wherein the refrigeration coil (231), the heating coil (232), the temperature sensor (233) and the liquid level sensor (234) are all arranged in a thermostatic sleeve (22) and are all in communication connection with a PLC control system (7).
5. The online measurement device for the saturated vapor pressure of the offshore platform export crude oil according to any one of claims 2 to 4, further comprising a cleaning mechanism (3) for cleaning the vapor pressure tester (1), wherein the cleaning mechanism (3) comprises a clean energy source (31), a cleaning pipeline (32) and a blowdown pipeline, the cleaning pipeline (32) is communicated with the cleaning valve (41), the blowdown pipeline is provided with a blowdown valve, the blowdown pipeline is communicated with the vapor pressure tester (1), and when the cleaning valve (41) and the blowdown valve are both opened, the clean energy source (31) can flow into the vapor pressure tester (1) from the cleaning pipeline (32) through the cleaning valve (41) and then be discharged from the blowdown pipeline.
6. The offshore platform exported crude oil saturation vapor pressure on-line measuring device according to claim 5, wherein the clean energy source (31) comprises hot water from a hot water system (311), the cleaning pipeline (32) comprises a hot water pipeline (321), a hot water valve (42) is arranged in the hot water pipeline (321), and the hot water pipeline (321) is communicated with the cleaning valve (41); the sewage discharge pipeline comprises a liquid sewage discharge pipeline (331), a liquid valve (43) is arranged in the liquid sewage discharge pipeline (331), and the liquid valve (43) is respectively communicated with the first connector (111) and the second connector (121); when the hot water valve (42) and the liquid valve (43) are both opened, hot water can be conveyed from the hot water system (311) to the gas chamber (11) and the liquid chamber (12) through the hot water pipeline (321) and then discharged through the liquid drainage pipeline (331).
7. The offshore platform exported crude oil saturation vapor pressure on-line measuring device according to claim 6, wherein the clean energy source (31) further comprises nitrogen from a nitrogen system (312), the purge line (32) further comprises a nitrogen line (322), a nitrogen valve (44) is arranged in the nitrogen line (322), and the nitrogen line (322) is communicated with the purge valve (41); the sewage discharge pipeline also comprises a gas sewage discharge pipeline (332), and the gas sewage discharge pipeline (332) is communicated with the gas valve (45); when the nitrogen valve (44), the purge valve (41) and the gas valve (45) are all opened, nitrogen can be transmitted from the nitrogen system (312) to the gas chamber (11) and the liquid chamber (12) through the nitrogen pipeline (322) and then is discharged through the gas blowdown pipeline (332).
8. The offshore platform exported crude oil saturation vapor pressure on-line measuring device according to claim 7, further comprising a crude oil transportation pipeline (6) for transporting crude oil, wherein a crude oil valve (46) is arranged in the crude oil transportation pipeline (6), and the crude oil transportation pipeline (6) is communicated with the second interface (121).
9. The offshore platform exported crude oil saturation vapor pressure on-line measuring device according to claim 8, wherein a first flow sensor (51) is arranged behind the gas valve (45), a second flow sensor (52) is arranged behind the liquid valve (43), and a third flow sensor (53) is arranged at the front end of the crude oil valve (46).
10. The offshore platform export crude oil saturation vapor pressure on-line measuring device according to claim 2, wherein the PLC control system (7) comprises an upper computer, a power supply module, an analog quantity input module, a digital quantity output module and a digital quantity input module, wherein the analog quantity input module, the digital quantity output module and the digital quantity input module are all in communication connection with the upper computer, the power supply module is respectively and electrically connected with the upper computer, the analog quantity input module, the digital quantity output module and the digital quantity input module, and the upper computer is respectively in communication connection with the vapor pressure tester (1) and the measuring mechanism (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220593932.1U CN216846683U (en) | 2022-03-17 | 2022-03-17 | Offshore platform export crude oil saturation vapor pressure measuring device and online measuring device |
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| CN202220593932.1U CN216846683U (en) | 2022-03-17 | 2022-03-17 | Offshore platform export crude oil saturation vapor pressure measuring device and online measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117824911A (en) * | 2024-01-03 | 2024-04-05 | 南京师范大学 | Pure liquid saturated vapor pressure measurement experimental device and pressure measurement method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117824911A (en) * | 2024-01-03 | 2024-04-05 | 南京师范大学 | Pure liquid saturated vapor pressure measurement experimental device and pressure measurement method thereof |
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