CN215374134U - Servo interface level meter for indirectly measuring oil-water interface level - Google Patents
Servo interface level meter for indirectly measuring oil-water interface level Download PDFInfo
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- CN215374134U CN215374134U CN202121643383.6U CN202121643383U CN215374134U CN 215374134 U CN215374134 U CN 215374134U CN 202121643383 U CN202121643383 U CN 202121643383U CN 215374134 U CN215374134 U CN 215374134U
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Abstract
The utility model provides a servo interface level meter for indirectly measuring an oil-water interface level, which comprises a first working sleeve, a first floater arranged in the first working sleeve, a second floater arranged in the second working sleeve, a first valve and a second valve. The servo interface level meter overcomes the risk that the measuring floater is stuck in crude oil, when the oil-water interface level is measured, the first floater and the second floater do not need to sink in the crude oil, the floater is prevented from being polluted by the crude oil to the maximum extent, the measuring precision is improved, and the first floater and the second floater are connected through the lifting rope, so that the first floater and the second floater can be maintained and overhauled conveniently; the second working sleeve extends into the pipe wall below the liquid level without being provided with a hole, only water enters the inner cavity of the second working sleeve, the second floater floats upwards under the buoyancy action of the water, the second floater is at a higher liquid level, the distance from the pump at the bottom of the pump pit is far, and disturbance caused by pump vibration is reduced.
Description
Technical Field
The utility model relates to the technical field of liquid level measurement, in particular to a servo interface level meter for indirectly measuring an oil-water interface level.
Background
The oil-water boundary level is an important process control index of water in a pit of a tunnel tank submersible pump operating lift pump and is also a key parameter for triggering protection of a safety instrument system. The traditional method for measuring the oil-water boundary level of the underground water-sealed rock cavern crude oil reservoir is a direct measurement mode, namely a pipe body is installed in a vertical shaft region of a cavern tank to the bottom of a pump pit, a floater is arranged in the pipe body, and the floater floats at the oil-water boundary level to directly measure the oil-water boundary level. Because the crude oil has high density and complex components, heavy components (components with high density) in the crude oil can gradually deposit towards the oil-water interface position along with the time, the floater is positioned at the oil-water interface for a long time, deposits are continuously accumulated on the floater, the free movement of the floater is blocked, the measurement precision is influenced, and even the floater is stuck in the crude oil to cause that the measurement cannot be carried out.
The above background disclosure is only for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a servo boundary meter for indirectly measuring an oil-water boundary.
In order to achieve the purpose, the utility model adopts the technical scheme that: a servo boundary position meter for indirectly measuring an oil-water boundary position comprises a first working sleeve, a first floater and a second working sleeve which are arranged in the first working sleeve, a second floater, a first valve and a second valve which are arranged in the second working sleeve; the upper end and the lower end of the first valve are respectively connected with the second working sleeve and the upper end of the first working sleeve through pipes, the upper end of the second valve is connected with the upper end of the second working sleeve through a pipe, and during normal measurement, the first valve is in an open state and the second valve is in a closed state; the scales are arranged on the pipe walls of the first working sleeve and the second working sleeve, the first working sleeve and the second working sleeve are vertically placed in an underground water seal rock cavern crude oil storage side by side when in use, and only the pipe wall of the first working sleeve is provided with a plurality of liquid seepage holes at equal intervals along the length direction in the first working sleeve and the second working sleeve.
Furthermore, the first valve and the second valve are electromagnetic valves, and the opening and the closing of the first valve and the second valve are controlled by a remote controller.
Further, the first floater and the second floater are respectively connected with the first lifting rope and the second lifting rope.
Preferably, the servo interface level meter for indirectly measuring the oil-water interface level further comprises a flange connected to openings at the upper ends of the first working sleeve and the second working sleeve.
The servo interface level meter provided by the utility model is used for indirectly measuring the oil-water interface level in the underground water-sealed rock cavern crude oil reservoir, overcomes the risk that a measuring floater is stuck in crude oil, and has the following advantages:
1. when the servo liquid level meter measures the oil-water interface level, the first floater and the second floater do not need to sink in crude oil, the floaters are prevented from being polluted by the crude oil to the maximum extent, the measurement precision is improved, and the first floater and the second floater are connected through the lifting rope, so that the first floater and the second floater can be maintained and overhauled conveniently;
2. the second working sleeve extends into the pipe wall below the liquid level without being provided with a hole, only water enters the inner cavity of the second working sleeve, the second floater floats upwards under the buoyancy action of the water, and the second floater is at a higher liquid level and is far away from the pump at the bottom of the pump pit, so that the disturbance caused by the vibration of the pump and the flow of the liquid is reduced;
3. the greasy dirt that conveniently clears up and get into the inside of second work sleeve pipe, when the inside crude oil that receives of second work sleeve pipe pollutes, to lifting first lifting rope and maintaining and overhaul the second float, close first valve again and open the second valve, make high-pressure nitrogen gas get into second work sleeve pipe inner chamber and extrude the greasy dirt from second work sleeve pipe lower extreme.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a servo boundary level meter for indirect measurement of oil-water boundary level according to a preferred embodiment of the present invention;
in the figure: the device comprises a first working sleeve 11, a first floater 12, a first valve 13, a liquid seepage hole 14, a first lifting rope 15, a second working sleeve 21, a second floater 22, a second valve 23, a second lifting rope 25, a flange 31, a vertical shaft 40 and a well cover 50.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the utility model in a schematic manner, and thus show only the constituents relevant to the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, a servo boundary position meter for indirectly measuring an oil-water boundary position according to a preferred embodiment of the present invention includes a first working casing 11, a first float 12 disposed in the first working casing 11, a second working casing 21, a second float 22 disposed in the second working casing 21, a first valve 13, and a second valve 23.
The flange 31 is connected to the openings at the upper ends of the first working sleeve 11 and the second working sleeve 21, the upper end and the lower end of the first valve 13 are respectively connected with the upper ends of the second working sleeve 21 and the first working sleeve 11 through pipes, and when the first valve 13 is opened, the second working sleeve 21 is communicated with the first working sleeve 11; closing the first valve 13 blocks the second working cannula 21 from the first working cannula 11. The upper end of the second valve 23 is connected with the upper end of the second working sleeve 21 through a pipe, and when the second valve 23 is opened, high-pressure nitrogen can be introduced into the second working sleeve 21 to clean oil stains entering the inside of the second working sleeve 21. During normal measurement, the first valve 13 is in an open state, and the second valve 23 is in a closed state, so as to keep the gas phase pressure in the first working sleeve 11 and the second working sleeve 21 balanced. Preferably, the first valve 13 and the second valve 23 are solenoid valves, and the opening and closing of the first valve 13 and the second valve 23 are controlled by a remote controller.
The first floater 12 and the second floater 22 respectively extend into the inner cavities of the first working sleeve 11 and the second working sleeve 21, and preferably, the first floater 12 and the second floater 22 are respectively connected with the first lifting rope 15 and the second lifting rope 25 for lifting the first floater 12 and the second floater 22 up and down for facilitating maintenance and repair.
The pipe walls of the first working sleeve 11 and the second working sleeve 21 are provided with scales, and the first working sleeve 11 and the second working sleeve 21 are vertically placed in an underground water-sealed rock cavern crude oil storage side by side when in use. In the first working sleeve 11 and the second working sleeve 21, only the pipe wall of the first working sleeve 11 is provided with a plurality of liquid seepage holes 14 at equal intervals along the length direction, water and crude oil can enter the inner cavity of the first working sleeve 11 along the liquid seepage holes 14, and the second working sleeve 21 extends into the pipe wall below the liquid level without being provided with holes.
The method for measuring the oil-water boundary level of the underground water-sealed rock cavern crude oil reservoir by using the servo boundary level meter comprises the following steps:
the first working sleeve 11 and the second working sleeve 21 correspondingly penetrate through two through holes in the well cover 50 and are inserted into a vertical shaft 40 of an underground water-sealed rock cavern crude oil depot, the first working sleeve 11 and the second working sleeve 21 are fixedly connected with the well cover 50, at the moment, a plurality of liquid seepage holes 14 in the pipe wall of the first working sleeve 11 are positioned below the well cover 50, and the first valve 13 and the second valve 23 are positioned above the well cover 50; the vertical shaft 40 is filled with water and crude oil, the density of the water is greater than that of the crude oil, the crude oil is insoluble in water, the crude oil and the water are layered up and down, a crude oil layer floats above a water layer (the joint surface position of the crude oil layer and the water layer is an oil-water boundary position), the crude oil is a mixture, and the crude oil component with the greater density is positioned at the bottom of the crude oil layer; when the lower end of the second working sleeve 21 is immersed into the water layer, water is pressed into the inner cavity of the second working sleeve 21 from the lower end opening of the second working sleeve 21, meanwhile, water and crude oil enter the inner cavity of the first working sleeve 11 along the liquid seepage hole 14, only water enters the inner cavity of the second working sleeve 21, so that the first floater 12 and the second floater 22 float under the buoyancy action of the crude oil and the water, and the liquid level height H in the first working sleeve 11 is directly read through the scales on the pipe walls of the first floater 12 and the first working sleeve 111And the liquid level height H in the second working sleeve 21 is directly read through the scales on the second floater 22 and the pipe wall of the second working sleeve 213The oil-water boundary level in the crude oil reservoir of the underground water-sealed rock cavern is assumed to be H2The pressure of the first working sleeve 11 and the pressure of the second working sleeve 21 at the bottom of the pump pit are consistent, and the first working sleeve and the second working sleeve have the following pressure values according to the principle of a communicating vessel: rhoOilg(H1-H2)+ρWater (W)g H2=ρWater (W)g H3Namely: h2=(ρWater (W)H3-ρOilH1)/ (ρWater (W)-ρOil), H1、H3From a servo fluidDirect measurement by a position meter, average density of oil ρOilDensity p of water, obtained analytically for constant stabilityWater (W)Is constant, so the oil-water boundary level H can be obtained by real-time calculation with the help of a computer system2。
The servo interface level meter provided by the utility model is used for indirectly measuring the oil-water interface level in the underground water-sealed rock cavern crude oil reservoir, overcomes the risk that a measuring floater is stuck in crude oil, and has the following advantages:
1. when the servo liquid level meter measures the oil-water boundary level, the first floater 12 and the second floater 22 do not need to sink in crude oil, the floaters are prevented from being polluted by the crude oil to the maximum extent, the measurement precision is improved, and the first floater 12 and the second floater 22 are respectively connected with the first lifting rope 15 and the second lifting rope 25, so that the first floater 12 and the second floater 22 can be maintained and overhauled conveniently;
2. the second working sleeve 21 extends into the pipe wall below the liquid level without being provided with a hole, only water enters the inner cavity of the second working sleeve 21, the second floater 22 floats upwards under the buoyancy action of the water, and the second floater 22 is at a higher liquid level and is far away from the pump at the bottom of the pump pit, so that the disturbance caused by the vibration of the pump and the flow of the liquid is reduced;
3. the oil stain entering the second working sleeve 21 can be conveniently cleaned, when the interior of the second working sleeve 21 is polluted by crude oil, the first lifting rope 15 is lifted upwards to maintain and overhaul the second floater 22, then the first valve 13 is closed, the second valve 23 is opened, and high-pressure nitrogen enters the inner cavity of the second working sleeve 21 to press the oil stain out of the lower end of the second working sleeve 21; and then stopping filling the nitrogen, slowly opening the first valve 13 to balance gas phase pressure in the first working sleeve 11 and the second working sleeve 21, vertically inserting the first working sleeve 11 and the second working sleeve 21 into the vertical shaft 40 of the underground water sealed rock cavern crude oil storage again to ensure that water is pressed into the inner cavity of the second working sleeve 21 again from the lower end opening of the second working sleeve 21, and finally putting the second floater 22 into the inner cavity of the second working sleeve 21 again through the first lifting rope 15 to recover measurement.
The above descriptions of the embodiments of the present invention, which are not related to the above description, are well known in the art, and may be implemented by referring to the well-known technologies.
In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a servo boundary position meter for indirect measurement of profit boundary position which characterized in that: the device comprises a first working sleeve, a first floater and a second working sleeve which are arranged in the first working sleeve, a second floater and a first valve which are arranged in the second working sleeve; the upper end and the lower end of the first valve are respectively connected with the second working sleeve and the upper end of the first working sleeve through pipes, the upper end of the second valve is connected with the upper end of the second working sleeve through a pipe, and during normal measurement, the first valve is in an open state and the second valve is in a closed state; the scales are arranged on the pipe walls of the first working sleeve and the second working sleeve, the first working sleeve and the second working sleeve are vertically placed in an underground water seal rock cavern crude oil storage side by side when in use, and only the pipe wall of the first working sleeve is provided with a plurality of liquid seepage holes at equal intervals along the length direction in the first working sleeve and the second working sleeve.
2. The servo boundary gauge for indirect measurement of oil-water boundary level according to claim 1, wherein: the first valve and the second valve are electromagnetic valves, and the opening and the closing of the first valve and the second valve are controlled by a remote controller.
3. The servo boundary gauge for indirect measurement of oil-water boundary level according to claim 1, wherein: the first floater and the second floater are respectively connected with the first lifting rope and the second lifting rope.
4. The servo boundary gauge for indirect measurement of oil-water boundary level according to claim 1, wherein: the device also comprises a flange connected to the openings at the upper ends of the first working sleeve and the second working sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121643383.6U CN215374134U (en) | 2021-07-20 | 2021-07-20 | Servo interface level meter for indirectly measuring oil-water interface level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121643383.6U CN215374134U (en) | 2021-07-20 | 2021-07-20 | Servo interface level meter for indirectly measuring oil-water interface level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215374134U true CN215374134U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121643383.6U Active CN215374134U (en) | 2021-07-20 | 2021-07-20 | Servo interface level meter for indirectly measuring oil-water interface level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215374134U (en) |
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2021
- 2021-07-20 CN CN202121643383.6U patent/CN215374134U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221209 Address after: 516300 Renshan Town, Huidong County, Huizhou City, Guangdong Province Patentee after: HUIZHOU STATE RESERVE PETROLEUM BASE Co.,Ltd. Address before: 516082 room 1803, unit 1, building 22, Haihui garden, No. 1, Yanhe Road, West District, Dayawan District, Huizhou City, Guangdong Province Patentee before: Liu Jianli |
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| TR01 | Transfer of patent right |