CN203422364U - Wet steam dryness detection device - Google Patents
Wet steam dryness detection device Download PDFInfo
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- CN203422364U CN203422364U CN201320463981.4U CN201320463981U CN203422364U CN 203422364 U CN203422364 U CN 203422364U CN 201320463981 U CN201320463981 U CN 201320463981U CN 203422364 U CN203422364 U CN 203422364U
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- steam
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- dryness fraction
- mass dryness
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Abstract
The utility model provides a wet steam dryness detection device which comprises a steam storage cavity (5), a steam expansion cavity (12), a temperature sensor (6), a pressure sensor (7) and a controller (17), wherein the steam storage cavity (5) is connected to a pipeline (1) to-be-detected through a first valve (3), and is connected to the pipeline (1) to-be-detected through a second valve (9); the steam expansion cavity (12) is connected with the steam storage cavity (5) through a third valve (11), and is connected to the atmosphere through a fourth valve (14); the temperature sensor (6) is mounted on the steam storage cavity (5); the pressure sensor (7) is mounted on the steam storage cavity (5); the controller controls the opening or closing of the first valve, the second valve, the third valve and the fourth valve, and calculates the dryness of wet steam in the pipeline (1) to-be-detected according to detection data of the temperature sensor (6) and the pressure sensor (7).
Description
Technical field
The utility model relates to polyphasic flow detection field, particularly wet saturated vapor mass dryness fraction on-line measurement device for oil field.
Background technology
In viscous crude is produced, take steam incoming and outcoming, steam drives and the development scheme such as steam assisted gravity drainage (SAGD) as main.On stream, in order reasonably to adjust gas injection parameter, need to mass dryness fraction parameter, measure in steam production and the process of injecting, to analyze exactly and grasp gas injection effect, improve thermal recovery efficiency.
Oil Field steam mass dryness fraction detects the method for still more employing artificial sample chemical examination at present, and owing to not detecting by real-time online, the result of its detection can not truly be reacted the steam mass dryness fraction parameter of whole production run continuously, and hand labor intensity is large.After online detection damp steam mass dryness fraction is mainly used moisture trap to measure respectively air water two-phase state at present, then calculate steam mass dryness fraction, but to be applied in on-the-spot gas-liquid separator separates effect not satisfactory due to some, affected the accuracy of detection of mass dryness fraction, and bulky.
Also have some can measure the on-line detector table of damp steam mass dryness fraction and flow simultaneously, as Chinese patent ZL02232815.7 discloses a kind of two-parameter measurement device that measures saturated vapor mass dryness fraction and flow, what utilize is orifice plate differential pressure noise measurement principle, its measuring instrument is easy for installation, but because field working conditions is complicated, two-phase flow change of flow state is interval large, has larger detection error.
Other method is the combined detection 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.
Utility model content
The utility model is exactly to propose in view of the above problems, and its object is, the device of Measurement accuracy damp steam mass dryness fraction is online provided.
The utility model utilizes the thermophysical property of law of conservation of mass and water vapor self, by reducing damp steam pressure, make its conversion turn to superheated vapor, in conjunction with temperature, pressure detected parameters and water vapor state equation, realize online, the Measurement accuracy of damp steam mass dryness fraction.
According to first aspect of the present utility model, damp steam mass dryness fraction pick-up unit is provided, it is characterized in that, comprising: steam storage chamber 5, it is connected to pipe under test 1 via the first valve 3, and is connected to described pipe under test 1 via the second valve 9; Steam expanded chamber 12, it is connected with described steam storage chamber 5 via the 3rd valve 11, and is connected to atmosphere via the 4th valve 14; Temperature sensor 6, it is arranged on described steam storage chamber 5; Pressure transducer 7, it is arranged on described steam storage chamber 5; And controller 17, its switching to the first valve～four valve is controlled, and detection data based on described temperature sensor 6 and described pressure transducer 7 and calculate the mass dryness fraction of the damp steam in described pipe under test 1.
In addition, according to second aspect of the present utility model, in above-mentioned first aspect, be preferably, described the first valve 3, described the second valve 9, described the 3rd valve 11 and described the 4th valve 14 are electrically operated valves.
In addition, according to the 3rd aspect of the present utility model, in above-mentioned first aspect or second aspect, be preferably, this damp steam mass dryness fraction pick-up unit is connected with remote equipment 18 via network.
According to the utility model, can be arranged on quickly and easily on oilfield gas injection pipeline, take up an area space little, can realize wet saturated vapor online, accurately detect, to instructing thick oil gas filling to produce, reduce labor strength and have great importance.
Accompanying drawing explanation
Fig. 1 is the structural representation that damp steam mass dryness fraction pick-up unit of the present utility model is shown.
Label declaration
1-pipe under test; 2-pick-up unit steam-gas inlet passage; 3-the first valve; 4-heat insulation layer; 5-steam storage chamber; 6-temperature sensor; 7-pressure transducer; 8-storage chamber steam displacement exit passageway; 9-the second valve; 10-steam expanded chamber intake vent; 11-the 3rd valve; 12-steam expanded chamber; 13-steam expanded chamber exit passageway; 14-the 4th valve; 14-signal wire; 15-signal wire; 16-radio communication device; 17-controller; 18-remote equipment.
Embodiment
Below, with reference to 1 pair of embodiment of the present utility model of accompanying drawing, be specifically described.
As shown in Figure 1, damp steam mass dryness fraction pick-up unit is arranged in pipe under test 1, and it comprises: steam storage chamber 5, steam expanded chamber 12, temperature sensor 6, pressure transducer 7 and controller 17.
In addition, although not necessarily, steam storage chamber 5 also can be connected with pipe under test 1 by storage chamber steam displacement exit passageway 8, on storage chamber steam displacement exit passageway 8, the second valve 9 is installed.Can between steam storage chamber 5 and pipe under test 1, carry out better the displacement of damp steam like this.The interface of steam storage chamber 5 and storage chamber steam displacement exit passageway 8 is the interface with steam-gas inlet passage 2 away from steam storage chamber 5 as much as possible.For example, on steam storage chamber 5, the storage chamber steam displacement connecting portion of exit passageway 8 and the connecting portion of steam-gas inlet passage 2 are positioned at relative two ends.
In addition, on steam expanded chamber 12, be connected with steam expanded chamber exit passageway 13, on this steam expanded chamber exit passageway 13, the 4th valve 14 be installed.The other end of steam expanded chamber exit passageway 13 passes in atmosphere.
Each above-mentioned passage and steam storage chamber 5 and steam expanded chamber 12 and with pipe under test 1 between be connected and can adopt and be threaded or any appropriate connected mode such as flange connection according to actual conditions, this is not limited.
On steam storage chamber 5, dispose heat insulation layer 4, to avoid operating personnel to be scalded by high temperature.Equally, on steam expanded chamber 12 and steam-gas inlet passage 2, steam expanded chamber intake vent 10, storage chamber steam displacement exit passageway 8 and steam expanded chamber exit passageway 13 etc., also heat insulation layer can be set.
In the present embodiment, valve 3,9,11,14 is all electrically operated valve, and is connected with controller 17 respectively and can be controlled by controller 17.Controller 17 can send command signal and open or close this valve to any one valve.In order to realize the control of controller 17 to each valve 3,9,11,14, need to use the various devices such as power supply supply, relay.But controller 17 is known to the realization of the control of each valve 3,9,11,14, has omitted diagram here and has described in detail.
Controller 17 can be any device that has arithmetic capability and can control each valve etc.For example, controller 17 can plc data acquisition control device, can be also computing machine etc.
For example, in one embodiment, controller 17 is plc data acquisition control devices, and it is connected with pressure transducer 7 with each valve and temperature sensor 6 via data line, cable etc.In advance this plc data acquisition control device has been carried out to appropriate programming, can realize the detection action of this damp steam mass dryness fraction pick-up unit.
In this embodiment, controller 17 is connected with not shown display.The detected damp steam mass dryness fraction of damp steam mass dryness fraction pick-up unit is presented on this display, makes operating personnel to recognize intuitively real-time damp steam mass dryness fraction from this display.
In another embodiment, controller 17 is industrial computers, and it is by the interface between the realizations such as data card and temperature sensor 6 and pressure transducer 7 and each valve.This industrial computer is also connected with remote equipment 18 by network, for this reason, has radio communication device 16, by these radio communication device 16 access networks, is connected with remote equipment 18.This remote equipment 18 can be long-range computing machine etc.In this embodiment, operating personnel can pass through remote equipment 18, in the position away from measure field, damp steam mass dryness fraction pick-up unit are controlled and are operated, for example, can remotely start damp steam mass dryness fraction and detect, and can remotely observe measurement data etc.
Below, the course of action of damp steam mass dryness fraction pick-up unit is described.Before damp steam mass dryness fraction pick-up unit moves, controller 17 all controls each valve 3,9,11 grades into closed condition.While starting to detect, first, by controller 17, the first valve 3, the second valve 9 are opened, make the wet saturated vapor in pipe under test 1 (following, also referred to as damp steam sample) respectively through pick-up unit steam-gas inlet passage 2, steam storage chamber 5, steam storage chamber ventilation exit passageway 8, thus between steam storage chamber 5 and pipe under test 1, carry out the displacement of damp steam sample.After fully replacing, close the first valve 3, the second valve 9.Now, utilize temperature sensor 6 and pressure transducer 7 to detect temperature, the pressure of the damp steam sample in steam storage chamber 5, testing result is sent to controller 17 as the first data.Then, open the 3rd valve 11, make the damp steam sample of steam storage chamber 5 enter steam expanded chamber 12 through steam expanded chamber intake vent 10, like this, damp steam sample is expanded, so pressure decreased, is converted into superheated vapor.Now, again utilize temperature sensor 6 and pressure transducer 7 to detect temperature, the pressure of the damp steam sample in steam storage chamber 5, testing result is sent in controller 17 as the second data.
Controller 17 obtains, after above-mentioned two groups of data, it being analyzed.The computation model of water vapor thermophysical property is installed in controller 17.This computation model can, according to the temperature and pressure of the second data, calculate the steam gas specific volume under superheat state, the mass dryness fraction of then utilizing the calculated value of this steam gas specific volume and the temperature of the first data or pressure to obtain damp steam.After described damp steam mass dryness fraction detects, controller 17 sends instruction according to result of calculation, opens the 4th valve 14.Thus, making to detect complete damp steam sample gas is discharged in air, utilize the residual damp steam sample in 7 pairs of steam storage chambers 5 of pressure transducer to detect, when the testing result of pressure transducer 7 represents that gaseous tension is normal pressure, close the 3rd valve 11 and the 4th valve 14, thereby, complete cycle detection one time.
Above an embodiment of the present utility model is illustrated, but should be appreciated that, scope of the present utility model is limited by appended claims, and is not limited to above-mentioned embodiment.
Claims (3)
1. a damp steam mass dryness fraction pick-up unit, is characterized in that, comprising:
Steam storage chamber (5), it is connected to pipe under test (1) via the first valve (3), and is connected to described pipe under test (1) via the second valve (9);
Steam expanded chamber (12), it is connected with described steam storage chamber (5) via the 3rd valve (11), and is connected to atmosphere via the 4th valve (14);
Temperature sensor (6), it is arranged on described steam storage chamber (5);
Pressure transducer (7), it is arranged on described steam storage chamber (5); And
Controller (17), its switching to described the first valve～four valve is controlled, and detection data based on described temperature sensor (6) and described pressure transducer (7) and calculate the mass dryness fraction of the damp steam in described pipe under test (1).
2. damp steam mass dryness fraction pick-up unit according to claim 1, is characterized in that, described the first valve (3), described the second valve (9), described the 3rd valve (11) and described the 4th valve (14) are electrically operated valves.
3. damp steam mass dryness fraction pick-up unit according to claim 1 and 2, is characterized in that, this damp steam mass dryness fraction pick-up unit is connected with remote equipment (18) via network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463981.4U CN203422364U (en) | 2013-07-31 | 2013-07-31 | Wet steam dryness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463981.4U CN203422364U (en) | 2013-07-31 | 2013-07-31 | Wet steam dryness detection device |
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| Publication Number | Publication Date |
|---|---|
| CN203422364U true CN203422364U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463981.4U Expired - Fee Related CN203422364U (en) | 2013-07-31 | 2013-07-31 | Wet steam dryness detection device |
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| CN (1) | CN203422364U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940809A (en) * | 2014-05-07 | 2014-07-23 | 厦门福芯微电子科技有限公司 | Steam dryness testing device and testing method thereof |
| CN104215663A (en) * | 2014-09-11 | 2014-12-17 | 本钢板材股份有限公司 | Water-jetting steam-extraction saturated steam dryness measuring method and device |
| CN104237307A (en) * | 2014-09-11 | 2014-12-24 | 本钢板材股份有限公司 | Method and device for measuring saturated steam dryness through steam ejecting and extraction |
-
2013
- 2013-07-31 CN CN201320463981.4U patent/CN203422364U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940809A (en) * | 2014-05-07 | 2014-07-23 | 厦门福芯微电子科技有限公司 | Steam dryness testing device and testing method thereof |
| CN103940809B (en) * | 2014-05-07 | 2016-05-04 | 厦门福芯微电子科技有限公司 | Steam quality testing arrangement and method of testing thereof |
| CN104215663A (en) * | 2014-09-11 | 2014-12-17 | 本钢板材股份有限公司 | Water-jetting steam-extraction saturated steam dryness measuring method and device |
| CN104237307A (en) * | 2014-09-11 | 2014-12-24 | 本钢板材股份有限公司 | Method and device for measuring saturated steam dryness through steam ejecting and extraction |
| CN104237307B (en) * | 2014-09-11 | 2016-08-24 | 本钢板材股份有限公司 | One is penetrated vapour and is drawn gas saturated vapor dryness measuring method and device |
| CN104215663B (en) * | 2014-09-11 | 2017-01-18 | 本钢板材股份有限公司 | Water-jetting steam-extraction saturated steam dryness measuring method and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20210731 |