CN210375255U - Petroleum mass flow detection device - Google Patents
Petroleum mass flow detection device Download PDFInfo
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- CN210375255U CN210375255U CN201921538549.0U CN201921538549U CN210375255U CN 210375255 U CN210375255 U CN 210375255U CN 201921538549 U CN201921538549 U CN 201921538549U CN 210375255 U CN210375255 U CN 210375255U
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Abstract
The utility model relates to a petroleum mass flow detection device, an oil inlet electromagnetic valve of the device is arranged on an oil inlet pipe at the top of an oil storage sample tank, and an oil outlet electromagnetic valve, a petroleum pump and a moisture content tester are arranged on an oil outlet pipe at the bottom of the oil storage sample tank; the distance measuring instrument is arranged at the top of the oil storage sample tank; the signal output ends of the distance meter and the moisture content tester are respectively connected with the first and second operational circuits through switch circuits. The utility model discloses can effectively solve sample oil and not be full of the detection error that different factors such as whole pipeline, velocity of flow inequality and adhesion hindrance brought, easy operation can on-the-spot accurate, reliable, quick, carry out real-time detection to sample oil conveniently, can not be because the in-process of sampling detection produces other errors, the quality of the pure oil that contains in the sample oil that reachs the oil well extraction that can be accurate.
Description
Technical Field
The utility model belongs to the technical field of oil flow detection, a oil mass flow detection device is related to.
Background
At present, the real-time detection method for petroleum yield at home and abroad mostly adopts a series of detection, calculation and derivation for the flow and the water content of sample petroleum in an oil pipeline so as to obtain the quality of pure oil contained in the sample petroleum in the pipeline. However, the above method is only suitable for the situation that the liquid sample fills the pipeline at any time in an ideal state and the flow rate is moderate, and has certain limitation. 1. When a sample is full of a pipeline but the flow rate is fast and slow or turbulence occurs, the current flow of the sample petroleum cannot be accurately measured; 2. under the condition that the flow of petroleum is too low to completely fill the whole pipeline, the current flow of the sample petroleum cannot be accurately measured; 3. because of the particularity of the sample petroleum, the sample petroleum is sticky and is easy to adhere to the unevenness of the inner wall of the pipeline caused by the periphery of the pipe wall, the petroleum is influenced by the sample petroleum in the flowing process, and each part is blocked by different degrees, and the current flow of the sample petroleum cannot be accurately measured due to the uneven flow rate. The system measurement error that above various factors can lead to oil "mass flow" to detect, so the utility model provides a measure new system of oil "mass flow", revise above-mentioned system error effectively, make the detection precision of oil "mass flow" obtain very big promotion [ "mass flow" -the flow of pure oil (not containing water) in the unit interval ].
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a petroleum mass flow detection device, the device can be accurate the quality of the pure oil that contains in the sample petroleum that reachs the oil well extraction.
In order to solve the technical problem, the oil mass flow detection device of the utility model comprises an oil inlet electromagnetic valve, an oil outlet electromagnetic valve, an oil pump, a water content tester, a distance meter, a switch circuit, a first operation circuit and a second operation circuit; the oil inlet electromagnetic valve is arranged on an oil inlet pipe positioned at the top of the oil storage sample tank, and the oil outlet electromagnetic valve, the oil pump and the water content tester are arranged on an oil outlet pipe at the bottom of the oil storage sample tank; the distance measuring instrument is arranged at the top of the oil storage sample tank; the signal output ends of the distance meter and the moisture content tester are respectively connected with the first and second operational circuits through switch circuits.
The switch circuit comprises a first single-pole double-throw switch and a second single-pole double-throw switch; the first single-pole double-throw switch is respectively connected with the distance measuring instrument, the first operational circuit and the second operational circuit; the second single-pole double-throw switch is respectively connected with the first operational circuit and the second operational circuit of the water content tester.
Opening an oil inlet electromagnetic valve and an oil outlet electromagnetic valve; when the liquid level height in the oil storage sample tank detected by the distance meter is between the liquid level over-low critical value and the liquid level over-high critical value, the signal output ends of the distance meter and the water content tester are connected with a first arithmetic circuit through a switch circuit, and the first arithmetic circuit calculates the petroleum mass flow; when the liquid level in the oil storage sample tank detected by the distance meter is higher than the liquid level over-high critical value, the petroleum pump is turned on, the signal output ends of the distance meter and the water content tester are connected with the second arithmetic circuit through the switch circuit, and the second arithmetic circuit calculates the petroleum mass flow; when the liquid level in the oil storage sample tank detected by the distance meter is lower than the over-low critical value of the liquid level, the oil outlet electromagnetic valve is closed, and the measurement is not carried out at the moment.
The utility model has the advantages that: 1. the position difference change of the liquid level of the sample petroleum in the oil storage sample tank along with time can be measured by the distance measuring instrument, so that the flow of the petroleum in the oil well in unit time is measured, and the flow detection precision of the measured sample petroleum is improved. 2. The detected oil inlet flow is corrected according to the water content of the sample oil detected by the water content tester in real time to obtain the oil mass flow, and the detection precision and accuracy are further improved. The utility model discloses can effectively solve sample oil and not be full of the detection error that different factors such as whole pipeline, velocity of flow inequality and adhesion hindrance brought, easy operation can on-the-spot accurate, reliable, quick, carry out real-time detection to sample oil conveniently, can not be because the in-process of sampling detection produces other errors, the quality of the pure oil that contains in the sample oil that reachs the oil well extraction that can be accurate.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the oil mass flow rate detection device of the utility model comprises an oil inlet electromagnetic valve 2, an oil outlet electromagnetic valve 3, an oil pump 4, a water content tester 5, a distance meter 6, a switch circuit, a first and a second operation circuit; the oil inlet electromagnetic valve 2 is arranged on an oil inlet pipe at the top of the oil storage sample tank 1, and the oil outlet electromagnetic valve 3, the oil pump 4 and the water content tester 5 are arranged on an oil outlet pipe at the bottom of the oil storage sample tank 1; the distance measuring instrument 6 is arranged at the top of the oil storage sample tank 1; the switching circuit includes a first single pole double throw switch 71 and a second single pole double throw switch 72; the first single-pole double-throw switch 71 is respectively connected with the distance measuring instrument 6, the first operational circuit and the second operational circuit; the second single-pole double-throw switch 72 is respectively connected with the first operational circuit and the second operational circuit of the water content tester.
The utility model has three working modes;
1. the liquid level height in the oil storage sample tank detected by the distance measuring instrument is between the liquid level over-low critical value and the liquid level over-high critical value, the oil inlet electromagnetic valve 2 and the oil outlet electromagnetic valve 3 are opened, and the petroleum pump 4 is closed; the distance measuring instrument 6 is connected with the first operational circuit through a first single-pole double-throw switch 71, and the moisture content tester 5 is connected with the first operational circuit through a second single-pole double-throw switch 72. The first operation circuit calculates the oil mass flow delta V' through formulas (1) and (2), namely the oil inlet mass flow of pure oil (without water) in unit time;
ΔV＝(ΔhI-Δh)·S (1)
ΔV′＝ΔV×(1-M％) （2)
Δh1the difference between the end position of the petroleum liquid level and the initial position of the liquid level of the sample in the oil storage sample tank 6 in unit time is calibrated in a state that the oil inlet electromagnetic valve 2 is closed, the oil outlet electromagnetic valve 3 is opened and the petroleum pump 4 is closed; the unit time here is equal to the sampling period of the distance meter 6. Delta h is the difference between the end position of the sample petroleum liquid in the oil storage sample tank 6 and the initial position of the liquid level measured by the distance meter 6 in the sampling period under the working state; s is the cross-sectional area of the oil storage sample tank 6; and M% is the water content of the petroleum measured by a water content tester.
2. The liquid level in the oil storage sample tank detected by the distance meter is higher than the liquid level over-high critical value, and the oil inlet electromagnetic valve 2, the oil outlet electromagnetic valve 3 and the petroleum pump 4 are opened; the distance measuring instrument 6 is connected with the second operational circuit through a first single-pole double-throw switch 71, and the moisture content tester 5 is connected with the second operational circuit through a second single-pole double-throw switch 72. The second operation circuit calculates the petroleum mass flow delta V' through formulas (3) and (2);
ΔV＝(ΔhIII-Δh)·S (3)
ΔV′＝ΔV×(1-M％) (2)
ΔhIIIthe difference between the end position of the petroleum liquid level and the initial position of the liquid level of the sample in the oil storage sample tank 6 in unit time is calibrated in the states of closing the oil inlet electromagnetic valve 2, opening the oil outlet electromagnetic valve 3 and opening the petroleum pump 4; delta h is the difference between the end position of the sample petroleum liquid in the oil storage sample tank 6 and the initial position of the liquid level measured by the distance meter 6 in the sampling period under the working state; s is the cross-sectional area of the oil storage sample tank 6; and M% is the water content of the petroleum measured by a water content tester.
3. And (3) closing the oil outlet electromagnetic valve when the liquid level in the oil storage sample tank detected by the distance meter is lower than the over-low critical value of the liquid level, and not measuring at the moment.
Claims (2)
1. A petroleum mass flow detection device is characterized by comprising an oil inlet electromagnetic valve (2), an oil outlet electromagnetic valve (3), a petroleum pump (4), a water content tester (5), a distance meter (6), a switch circuit, a first operation circuit and a second operation circuit; the oil inlet electromagnetic valve (2) is arranged on an oil inlet pipe positioned at the top of the oil storage sample tank (1), and the oil outlet electromagnetic valve (3), the oil pump (4) and the water content tester (5) are arranged on an oil outlet pipe at the bottom of the oil storage sample tank (1); the distance measuring instrument (6) is arranged at the top of the oil storage sample tank (1); the signal output ends of the distance meter (6) and the moisture content tester (5) are respectively connected with the first operational circuit and the second operational circuit through switch circuits.
2. The oil mass flow sensing device of claim 1, wherein said switching circuit comprises a first single pole double throw switch (71) and a second single pole double throw switch (72); the first single-pole double-throw switch (71) is respectively connected with the distance measuring instrument (6), the first operational circuit and the second operational circuit; the second single-pole double-throw switch (72) is respectively connected with the water content tester (5), the first operational circuit and the second operational circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921538549.0U CN210375255U (en) | 2019-09-17 | 2019-09-17 | Petroleum mass flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921538549.0U CN210375255U (en) | 2019-09-17 | 2019-09-17 | Petroleum mass flow detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210375255U true CN210375255U (en) | 2020-04-21 |
Family
ID=70254931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921538549.0U Expired - Fee Related CN210375255U (en) | 2019-09-17 | 2019-09-17 | Petroleum mass flow detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210375255U (en) |
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2019
- 2019-09-17 CN CN201921538549.0U patent/CN210375255U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200421 Termination date: 20210917 |