CN203324244U - Online testing device and system for dryness of wet steam - Google Patents
Online testing device and system for dryness of wet steam Download PDFInfo
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- CN203324244U CN203324244U CN2013200060200U CN201320006020U CN203324244U CN 203324244 U CN203324244 U CN 203324244U CN 2013200060200 U CN2013200060200 U CN 2013200060200U CN 201320006020 U CN201320006020 U CN 201320006020U CN 203324244 U CN203324244 U CN 203324244U
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Abstract
The utility model discloses an online testing device and system for the dryness of wet steam. The online testing device for the dryness of wet steam is arranged in a main wet steam pipe, and comprises a cylindrical heating cavity, an electric heater, a temperature sensor, a pressure sensor and a PLC (programmable logic controller), wherein the two ends of the cylindrical heating cavity are provided with an inlet valve and an outlet valve, and a wet steam sample in the main wet steam pipe enters the cylindrical heating cavity by the inlet valve; the electric heater is arranged in the cylindrical heating cavity, and used for carrying out heating on the wet steam sample entering the cylindrical heating cavity, so that the wet steam sample is heated into overheat-state steam; the temperature sensor is arranged in the cylindrical heating cavity, and used for collecting temperature signals of the inside of the cylindrical heating cavity; the pressure sensor is arranged in the cylindrical heating cavity, and used for collecting pressure signals of the inside of the cylindrical heating cavity; and the PLC is used for controlling the inlet valve and the outlet valve and the collection of the temperature signals and the pressure signals, and generating a testing result of the dryness of wet steam according to the temperature signals and the pressure signals. The device disclosed by the utility model is conveniently and quickly arranged in a steam injection pipeline in an oilfield, and realizes the online accurate testing of wet saturated steam, thereby reducing the labor intensity.
Description
Technical field
The utility model, about the polyphasic flow field tests, especially in regard to being wet saturated steam mass dryness fraction on-line measurement device for oil field, is a kind of dryness of wet steam online testing device, system concretely.
Background technology
Liaohe Oil Field is the viscous crude production base of China's maximum, the development schemes such as steam stimulation, steam flood and SAGD (SAGD) mainly be take as main in Liaohe Oil Field at present, on stream, in order reasonably to adjust steam injection parameter, need to the steam quality parameter, be measured in the process of production of steam and injection, in order to analyze accurately and grasp steam injection efficiency, improve thermal recovery efficiency.
At present Oil Field steam quality test is the method for more employing artificial sample chemical examination still, due to can not real-time in-line testing, and the steam quality parameter of the whole production run of reaction that the result of its test can not be truly continuous, and hand labor intensity is large.After the on-line testing dryness of wet steam is mainly used steam-water separator to measure respectively the steam-water twin phases state at present, then calculate steam quality, but to be applied in on-the-spot vapour liquid separator separating effect not satisfactory due to some, affected the measuring accuracy of mass dryness fraction, and bulky.
Can measure the on-line testing instrument of dryness of wet steam and flow in prior art simultaneously, as Chinese patent ZL02232815.7 discloses a kind of two-parameter measurement device that measures saturated vapor dryness and flow, what utilize is orifice plate differential pressure noise measurement principle, its test instrumentation is easy for installation, but due to the field working conditions complexity, the two-phase flow change of flow state is interval large, has larger test error.The other method is the combined test method by traditional flow measurement instrument and density measure instrument, as utilizes turbo flow meter, neutron population to take into account its combined method, because some radioactivity survey instrument safeguard procedures are inconsiderate, is difficult to large-scale promotion.
The utility model content
The utility model embodiment provides a kind of dryness of wet steam online testing device, and described dryness of wet steam online testing device is installed on the wet steam main pipeline, and this dryness of wet steam online testing device comprises:
The cylinder heating chamber, the two ends of described cylinder heating chamber have imported valve and outlet valve, and the wet steam sample body in described wet steam main pipeline enters described cylinder heating chamber by described imported valve;
Electric heater, be arranged in the cylinder heating chamber, for the wet steam sample body to entering in described cylinder heating chamber, heated, and described wet steam sample body was heated to be to hot steam;
Temperature sensor, be arranged at described cylinder heating chamber, for gathering the temperature signal in described cylinder heating chamber;
Pressure transducer, be arranged at described cylinder heating chamber, for gathering the pressure signal in described cylinder heating chamber;
PLC, for controlling described imported valve and outlet valve, the described temperature signal of collection and pressure signal, and generate the dryness of wet steam test result according to described temperature signal, pressure signal.
The utility model also provides a kind of dryness of wet steam Online Transaction Processing simultaneously, described dryness of wet steam Online Transaction Processing comprises cyclone, dryness of wet steam online testing device and computing machine, described cyclone is arranged in the wet steam main pipeline, be used to form the wet steam sample body all had, described dryness of wet steam online testing device is by being installed on the wet steam main pipeline, wherein
Described dryness of wet steam online testing device comprises:
The cylinder heating chamber, the two ends of described cylinder heating chamber have imported valve and outlet valve, and the wet steam in described wet steam main pipeline enters described cylinder heating chamber by described imported valve;
Electric heater, be arranged in the cylinder heating chamber, for the wet steam to entering in described cylinder heating chamber, heated, and described wet steam was heated to be to hot steam;
Temperature sensor, be arranged at described cylinder heating chamber, for gathering the temperature signal in described cylinder heating chamber;
Pressure transducer, be arranged at described cylinder heating chamber, for gathering the pressure signal in described cylinder heating chamber;
The PLC module, for gathering described temperature signal and pressure signal, and generate the dryness of wet steam test result according to described temperature signal, pressure signal;
Described computing machine, be connected with described dryness of wet steam online testing device by PLC, for receiving the dryness of wet steam test result of temperature signal, pressure signal and generation that described plc data collector gathers.
The utility model can conveniently be arranged on the oil field gas injection pipeline, and the occupation of land space is little, can realize online, the accurately test of wet saturated steam, produces the reduction labor strength to instructing the viscous crude steam injection.
For above and other purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structured flowchart that Fig. 1 is dryness of wet steam online testing device of the present utility model;
The structured flowchart that Fig. 2 is PLC in the utility model dryness of wet steam online testing device;
The schematic diagram that Fig. 3 is the utility model dryness of wet steam online testing device one embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
A kind of dryness of wet steam online testing device, the dryness of wet steam online testing device is installed on the wet steam main pipeline, and as shown in Figure 1, dryness of wet steam online testing device of the present utility model comprises:
Pressure transducer, be arranged at cylinder heating chamber 101, for gathering the pressure signal in cylinder heating chamber 101;
PLC, for controlling described imported valve and outlet valve, collecting temperature signal and pressure signal, and generate the dryness of wet steam test result according to temperature signal, pressure signal.
Temperature signal of the present utility model comprises: the vapor (steam) temperature in initial wet steam sample temperature, heating process and the hot vapor (steam) temperature of mistake; Pressure signal comprises: the vapor pressure in initial wet steam sample body pressure, heating process and the hot pressure of mistake.
Preferably, the chamber wall of cylinder heating chamber 101 of the present utility model is provided with heat insulation layer, isolated cylinder heating chamber and extraneous temperature exchange, raising measuring accuracy.
As shown in Figure 2, the PLC of dryness of wet steam online testing device of the present utility model comprises: data acquisition module 1051, for the wet steam temperature that gathers initial wet steam sample temperature, heating process, cross the vapor pressure in hot vapor (steam) temperature, initial wet steam sample body pressure, heating process and cross hot pressure;
Dryness of wet steam computing module 1052, for according to crossing hot vapor (steam) temperature and crossing hot calculation of pressure dryness of wet steam.
In addition, dryness of wet steam online testing device of the present utility model also comprises power governor 106, connects respectively electric heater 102 and PLC105, according to the heating steering order of PLC105, controls electric heater 102.
Simultaneously, the invention also discloses a kind of dryness of wet steam Online Transaction Processing, the dryness of wet steam Online Transaction Processing comprises cyclone, dryness of wet steam online testing device and computing machine, described cyclone is arranged in the wet steam main pipeline, be used to form the wet steam sample body all had, described dryness of wet steam online testing device is by being installed on the wet steam main pipeline, wherein
Described dryness of wet steam online testing device comprises:
The cylinder heating chamber, the two ends of described cylinder heating chamber have imported valve and outlet valve, and the wet steam in described wet steam main pipeline enters described cylinder heating chamber by described imported valve;
Electric heater, be arranged in the cylinder heating chamber, for the wet steam to entering in described cylinder heating chamber, heated, and described wet steam was heated to be to hot steam;
Temperature sensor, be arranged at described cylinder heating chamber, for gathering the temperature signal in described cylinder heating chamber;
Pressure transducer, be arranged at described cylinder heating chamber, for gathering the pressure signal in described cylinder heating chamber;
The PLC module, for gathering described temperature signal and pressure signal, and generate the dryness of wet steam test result according to described temperature signal, pressure signal;
Described computing machine, be connected with described dryness of wet steam online testing device by PLC, for receiving the dryness of wet steam test result of temperature signal, pressure signal and generation that described plc data collector gathers.
Below in conjunction with embodiment, technical solutions of the utility model are described in further details.
As shown in Figure 3, the dryness of wet steam online testing device of the present embodiment comprises proving installation steam inlet passage electrically operated valve 3, cylinder heating chamber heat insulation layer 4, cylinder heating chamber 5, temperature sensor 6, signal wire 7, pressure transducer 8, cylinder heating chamber exhausr port 9, electric heater 10, power governor 11, data acquisition control system 13 and exit passageway electrically operated valve 15.
As shown in Figure 3, the dryness of wet steam online testing device is arranged on wet steam main pipeline 1 by flange or screw thread, during test, will be respectively by exit passageway electrically operated valve 15 by plc data acquisition control system 13, intake vent electrically operated valve 3 is opened, wet saturated steam in main pipeline 1 forms uniform wet steam " sample body " after cyclone 16, " sample body " is by proving installation steam inlet passage 2, intake vent electrically operated valve 3 enters into the cylinder heating chamber 5 of proving installation, by plc data acquisition control system 13 successively by intake vent electrically operated valve 3, exit passageway electrically operated valve 15 is closed, utilize temperature and the pressure signal (being initial wet steam sample temperature and initial wet steam sample body pressure) of (wet saturated steam) under temperature sensor 6 and pressure transducer 8 these states of test, by signal wire 7, be sent in plc data acquisition control system 13.Then utilize electric heater 10 that wet steam " sample " is heated, until be heated to the superheated vapor state, power governor 11 can carry out power adjustments and switch control by 13 pairs of heating processes of plc data acquisition control system, whether " sample " is that superheat state can be monitored by temperature sensor 6 and pressure transducer 8, when reaching hot to mistake, computation model by the water vapor thermophysical property of installation in plc data acquisition control system 13 is calculated, see simplified model computing formula (1), this model can be by the temperature of superheated vapor, pressure gauge is calculated the gas specific volume under this state, then utilize temperature under this specific volume calculated value and wet-steam phase can obtain the mass dryness fraction of wet steam, simplify computation model as follows:
Computation model adopts IAPWS-IF97 water vapor Gibbs free energy g equation to be calculated:
In formula: v-this crosses the Specific volume for Superheated Steam under hot, m
3/ kg;
R-gas law constant;
Temperature under T-mistake is hot, ℃;
Pressure under p-mistake is hot, Pa;
N
i, I
i, J
i-Gibbs free energy g equation coefficient, table look-up and obtain.
Through type (1) calculated the gas specific volume under hot, because test process carries out in confined conditions, so mass conservation of gas, the constancy of volume of heating chamber, the density (specific volume) that is test process is constant, therefore, can try to achieve the mass dryness fraction X of wet steam by the temperature under wet-steam phase and excessively hot specific volume, refer to computing formula (2):
In formula: the saturation water specific volume of correspondence under v'-probe temperature, m
3/ kg;
V " the dry saturated steam specific volume of correspondence under-probe temperature, m
3/ kg.
Wherein, v' and v " according to the temperature of wet saturated steam and pressure signal (being the temperature and pressure signal of original state), table look-up known,
After dryness of wet steam under this time is completed, result of calculation is sent instruction by PLC again, successively open exit passageway electrically operated valve 15, intake vent electrically operated valve 3, be completed " sample " gas with main steam line, flow in the steam injection well, test result can directly be presented on the screen of plc data collector 13, also utilize the mode of signal wire 7 or wireless signal transmission to be sent on far-end computer 14, realize the remote on-line measurement of dryness of wet steam.
The utility model can conveniently be arranged on the oil field gas injection pipeline, and the occupation of land space is little, can realize online, the accurately test of wet saturated steam, to instructing the viscous crude steam injection, produces, and the reduction labor strength has great importance.This device has now carried out site test in the oil recovery factory, Liaohe Oil Field, and it records the mass dryness fraction error in 3% error range, has met preferably the on-the-spot test requirement.
Applied specific embodiment in the utility model principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model simultaneously.
Claims (10)
1. a dryness of wet steam online testing device, is characterized in that, described dryness of wet steam online testing device is installed on the wet steam main pipeline, and wherein, described dryness of wet steam online testing device comprises:
The cylinder heating chamber, the two ends of described cylinder heating chamber have imported valve and outlet valve, and the wet steam sample body in described wet steam main pipeline enters described cylinder heating chamber by described imported valve;
Electric heater, be arranged in the cylinder heating chamber, for the wet steam sample body to entering in described cylinder heating chamber, heated, and described wet steam sample body was heated to be to hot steam;
Temperature sensor, be arranged at described cylinder heating chamber, for gathering the temperature signal in described cylinder heating chamber;
Pressure transducer, be arranged at described cylinder heating chamber, for gathering the pressure signal in described cylinder heating chamber;
PLC, for controlling described imported valve and outlet valve, the described temperature signal of collection and pressure signal, and generate the dryness of wet steam test result according to described temperature signal, pressure signal.
2. dryness of wet steam online testing device as claimed in claim 1, is characterized in that, described temperature signal comprises: the vapor (steam) temperature in initial wet steam sample temperature, heating process and the hot vapor (steam) temperature of mistake.
3. dryness of wet steam online testing device as claimed in claim 1, is characterized in that, described pressure signal comprises: the vapor pressure in initial wet steam sample body pressure, heating process and the hot pressure of mistake.
4. dryness of wet steam online testing device as claimed in claim 1, is characterized in that, the chamber wall of described cylinder heating chamber is provided with heat insulation layer.
5. dryness of wet steam online testing device as claimed in claim 1, is characterized in that, described device also comprises power governor, connects respectively described electric heater and PLC, and described power governor is controlled described electric heater according to the heating steering order.
6. a dryness of wet steam Online Transaction Processing, it is characterized in that, described dryness of wet steam Online Transaction Processing comprises cyclone, dryness of wet steam online testing device and computing machine, described cyclone is arranged in the wet steam main pipeline, be used to form the wet steam sample body all had, described dryness of wet steam online testing device is by being installed on the wet steam main pipeline, wherein
Described dryness of wet steam online testing device comprises:
The cylinder heating chamber, the two ends of described cylinder heating chamber have imported valve and outlet valve, and the wet steam in described wet steam main pipeline enters described cylinder heating chamber by described imported valve;
Electric heater, be arranged in the cylinder heating chamber, for the wet steam to entering in described cylinder heating chamber, heated, and described wet steam was heated to be to hot steam;
Temperature sensor, be arranged at described cylinder heating chamber, for gathering the temperature signal in described cylinder heating chamber;
Pressure transducer, be arranged at described cylinder heating chamber, for gathering the pressure signal in described cylinder heating chamber;
The PLC module, for gathering described temperature signal and pressure signal, and generate the dryness of wet steam test result according to described temperature signal, pressure signal;
Described computing machine, be connected with described dryness of wet steam online testing device by PLC, for receiving the dryness of wet steam test result of temperature signal, pressure signal and generation that described plc data collector gathers.
7. dryness of wet steam Online Transaction Processing as claimed in claim 6, is characterized in that, described temperature signal comprises: the vapor (steam) temperature in initial wet steam sample temperature, heating process and the hot vapor (steam) temperature of mistake.
8. dryness of wet steam Online Transaction Processing as claimed in claim 6, is characterized in that, described pressure signal comprises: the vapor pressure in initial wet steam sample body pressure, heating process and the hot pressure of mistake.
9. dryness of wet steam Online Transaction Processing as claimed in claim 6, is characterized in that, the chamber wall of described cylinder heating chamber is provided with heat insulation layer.
10. dryness of wet steam Online Transaction Processing as claimed in claim 6, is characterized in that, described device also comprises power governor, connects respectively described electric heater and PLC, according to described heating steering order, controls described electric heater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200060200U CN203324244U (en) | 2013-01-07 | 2013-01-07 | Online testing device and system for dryness of wet steam |
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| CN2013200060200U CN203324244U (en) | 2013-01-07 | 2013-01-07 | Online testing device and system for dryness of wet steam |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564025A (en) * | 2014-12-31 | 2015-04-29 | 新疆华隆油田科技股份有限公司 | Vehicle-mounted movable oilfield steam metering device and metering method |
| CN105588855A (en) * | 2016-01-12 | 2016-05-18 | 西安若水电气设备有限公司 | Steam dryness and flow measurement device and method |
| CN105973932A (en) * | 2016-05-03 | 2016-09-28 | 西安若水电气设备有限公司 | Wet steam dryness measuring method and apparatus thereof |
| CN108469355A (en) * | 2018-06-08 | 2018-08-31 | 华能国际电力股份有限公司 | A kind of power plant carbonated drink sampler and sampling method on the spot |
| CN108760810A (en) * | 2018-07-02 | 2018-11-06 | 大连汇能科技股份有限公司 | A kind of steam quality detection method and device |
| CN108896620A (en) * | 2018-07-22 | 2018-11-27 | 江苏万兴石油装备有限公司 | A kind of outdoor version boiler steam dryness test device |
| CN113969776A (en) * | 2021-11-16 | 2022-01-25 | 中国石油天然气股份有限公司 | Device and method for measuring dryness of underground steam based on overheating method |
| CN114113464A (en) * | 2020-08-27 | 2022-03-01 | 中国石油天然气股份有限公司 | Online testing device and method for dryness of wet steam of steam transmission pipeline |
| CN114720045A (en) * | 2022-05-16 | 2022-07-08 | 中南林业科技大学 | Method and device for online testing internal steam pressure in hot pressing process of recombined bamboo |
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2013
- 2013-01-07 CN CN2013200060200U patent/CN203324244U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104564025A (en) * | 2014-12-31 | 2015-04-29 | 新疆华隆油田科技股份有限公司 | Vehicle-mounted movable oilfield steam metering device and metering method |
| CN105588855A (en) * | 2016-01-12 | 2016-05-18 | 西安若水电气设备有限公司 | Steam dryness and flow measurement device and method |
| CN105973932A (en) * | 2016-05-03 | 2016-09-28 | 西安若水电气设备有限公司 | Wet steam dryness measuring method and apparatus thereof |
| CN108469355A (en) * | 2018-06-08 | 2018-08-31 | 华能国际电力股份有限公司 | A kind of power plant carbonated drink sampler and sampling method on the spot |
| CN108760810A (en) * | 2018-07-02 | 2018-11-06 | 大连汇能科技股份有限公司 | A kind of steam quality detection method and device |
| CN108896620A (en) * | 2018-07-22 | 2018-11-27 | 江苏万兴石油装备有限公司 | A kind of outdoor version boiler steam dryness test device |
| CN114113464A (en) * | 2020-08-27 | 2022-03-01 | 中国石油天然气股份有限公司 | Online testing device and method for dryness of wet steam of steam transmission pipeline |
| CN113969776A (en) * | 2021-11-16 | 2022-01-25 | 中国石油天然气股份有限公司 | Device and method for measuring dryness of underground steam based on overheating method |
| CN113969776B (en) * | 2021-11-16 | 2024-04-26 | 中国石油天然气股份有限公司 | Device and method for measuring dryness of underground steam based on overheating method |
| CN114720045A (en) * | 2022-05-16 | 2022-07-08 | 中南林业科技大学 | Method and device for online testing internal steam pressure in hot pressing process of recombined bamboo |
| CN114720045B (en) * | 2022-05-16 | 2023-12-19 | 中南林业科技大学 | Online internal steam pressure testing method and device in recombined bamboo hot pressing process |
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