CN115326016B - Device for monitoring jamming inclination of storage tank floating disc and using method thereof - Google Patents

Device for monitoring jamming inclination of storage tank floating disc and using method thereof Download PDF

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Publication number
CN115326016B
CN115326016B CN202211252768.9A CN202211252768A CN115326016B CN 115326016 B CN115326016 B CN 115326016B CN 202211252768 A CN202211252768 A CN 202211252768A CN 115326016 B CN115326016 B CN 115326016B
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annular
storage tank
piece
liquid level
floating
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CN115326016A (en
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张松光
李志东
刘晓飞
门文超
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Shandong Shenchi Chemical Group Co ltd
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Shandong Shenchi Chemical Group Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18Measuring inclination, e.g. by clinometers, by levels by using liquids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

The invention relates to the technical field of storage tank floating plate detection, in particular to a device for monitoring the jamming and inclination of a storage tank floating plate and a using method thereof, wherein the device comprises a storage tank, a first inner floating piece capable of moving vertically is arranged in the storage tank, a waveguide tube is butted at the inner side of the storage tank, the first inner floating piece is sleeved at the outer side of the waveguide tube, a second liquid level meter is arranged at the top end of the inner side of the waveguide tube, a first liquid level meter is also arranged in the storage tank, and the first liquid level meter is arranged at the outer side of the waveguide tube and points to the first inner floating piece vertically; the device has the advantages that: the first liquid level meter and the second liquid level meter are adopted for simultaneous detection, so that whether the first inner floating piece is jammed or not can be accurately judged; detecting liquid is respectively added in the annular cavity and the liquid storage tank, and the received data of the first liquid level meter is influenced by the reflection of the refraction plate, so that whether the first internal floating piece is inclined or not is judged; through float in first interior float below setting up can take place pivoted second and float the piece, prevent in the second float the piece after taking place the slope, influence holistic leakproofness.

Description

Device for monitoring jamming and inclination of storage tank floating disc and using method thereof
Technical Field
The invention relates to a device for monitoring the state of a storage tank floating disc, in particular to a device for monitoring the jamming and inclination of the storage tank floating disc and a using method for the device.
Background
The floating-roof type oil storage tank is called a floating-roof tank for short, is an important category of oil storage tank, and is mainly distinguished from a common fixed-roof oil tank without the floating-roof type oil storage tank because the floating-roof type oil storage tank is provided with a floating roof device which can float on the oil surface in a sticking manner and can lift along with the oil level in the storage tank. The floating roof type oil storage tank is divided into an inner floating roof type and an outer floating roof type, so that the gas space above the liquid level can be greatly reduced due to the flexible upper and lower pressing close to the floating disc, and the evaporation loss of the stored materials can be greatly reduced. Such tanks are widely used for example: storage of light oil products such as gasoline, aviation kerosene and diesel oil and crude oil. The storage tank of interior floating roof form is a common storage tank form of dangerous chemicals production storage enterprise, because the disappearance of volatilizing in its reducible storage process, the energy saving has reduced the potential safety hazard and has reduced environmental pollution, consequently comparatively common in the refining industry.
The floating plate of interior floating roof storage tank is inside the storage tank, and its floats the floating top cap along with the upper and lower lift of oil on the oil tank liquid level, consequently the operating mode of floating plate bite can appear in the operation in-process, if the bite appears, the floating plate can take place the slope or the top oil condition of flowing, leads to seriously to the falling end of recoiling or the sudden drop of floating plate under the empty can state to lead to the storage tank to take out shrivelled occurence of failure. The conventional means generally uses a single radar liquid level meter to carry out direct detection, and because the inclined center of the floating plate is uncertain, if the detection direction of the radar liquid level meter just points to the inclined center of the floating plate, the operation state of the internal floating plate cannot be monitored whether jamming occurs or obvious inclination occurs; if the detection direction of the radar liquid level meter just points to the inclined side of the floating disc and the variation of the inclined angle is consistent with the calculated variation of the liquid level, whether the floating disc is inclined or not cannot be detected; if the floating plate is not timely treated after being inclined, the oil gas is not limited by the floating plate any more, and corresponding potential safety hazard and environmental pollution can be caused subsequently.
The invention with the publication number of CN110274576B discloses a floating plate inclination angle calculation and measurement method, a system and application for a floating roof storage tank, wherein the method comprises the steps that four optical fiber inclination angle sensors are symmetrically arranged on the surface of a floating plate, a cantilever beam and a heavy hammer are arranged according to the gravity direction, and the stress borne by a first optical fiber grating and the stress borne by a second optical fiber grating which are fixed on the two sides of the cantilever beam are the same; when the floating plate inclines, a heavy hammer in the optical fiber inclination angle sensor inclines, so that stress borne by the cantilever beam changes correspondingly, flexural strain borne by the fiber gratings on two sides of the cantilever beam also changes correspondingly, the inclination angle of the floating plate is obtained through the changed corresponding relation, and when the inclination angle of the floating plate reaches a preset value, the optical fiber inclination angle sensor is matched with corresponding equipment to give an alarm, so that the real-time monitoring of the inclination angle of the floating plate is realized, and the monitoring accuracy of the inclination angle of the floating plate is improved; however, this device can only detect the occurrence of a significant tilt of the float, and cannot detect the occurrence of such a state if the float is merely stuck and does not tilt.
Disclosure of Invention
To above problem, the application provides a be used for monitoring storage tank floating plate bite slope device and application method thereof, including the storage tank, but the storage tank embeds has vertical removal's first interior float, and the storage tank inboard has the guided wave pipe to dock, and the outside of guided wave pipe is located to first interior float cover, and the inboard top of guided wave pipe is equipped with the second level gauge, still is equipped with first level gauge in the storage tank, and first level gauge arranges the guided wave pipe outside in to vertical direction is in first interior float.
The guided wave tube comprises a hollow tube body with a closed bottom end, and a plurality of side holes which are radially conducted are distributed in the tube body along the length direction at equal intervals. The body outside sets firmly the spacing arch of axial extension, and first interior floating member includes that the inboard is equipped with the kickboard of central through-hole, and the vertical sliding connection of central through-hole is in spacing arch and body.
An annular cavity is arranged in the floating plate, an annular pipe is arranged above the floating plate, a vertical pipe and a connecting pipe are respectively arranged on the annular pipe upwards and downwards, the bottom of the connecting pipe is connected and communicated with the annular cavity, a refraction plate is arranged on the bottom of the annular cavity upwards, the top surface of the refraction plate is inclined,
furthermore, the top of the connecting pipe penetrates into the annular pipe, a liquid storage groove is formed at the bottom of the connecting pipe and the bottom of the annular pipe, detection liquid is contained in the liquid storage groove, the annular cavity is also contained in the annular cavity, and the liquid level in the annular cavity is higher than the top of the refraction plate.
The storage tank comprises a tank body and a top cover arranged above the tank body, the tank body is vertically arranged, an oil guide opening is laterally formed in the bottom of the tank body, a diffusion tube is inwards installed in the oil guide opening, and a breathing hole is formed in the top cover.
Further, still include vertical roll adjustment subassembly and first slope determine module, on the top cap was located to vertical roll adjustment subassembly, its end joint in first slope determine module, and first slope determine module was located the outside of guided wave pipe. The vertical distance adjusting assembly comprises a plurality of racks which are arranged above the top cover along the circumferential direction at equal intervals, a rotatable driving gear is arranged on the inner side of each rack, and a motor of which the output end is connected with the driving gear is arranged on the side surface of each rack. First slope determine module includes from last first loop forming element and the second loop forming element that sets gradually down, and both all are equipped with a plurality of vortex sensor along circumference equidistance, and vortex sensor's sense terminal radial directive in the axle center of guided wave pipe, and first loop forming element sets firmly in the below of top cap, but second loop forming element is for first loop forming element vertical motion.
The second loop forming element is the same with first loop forming element structure, and both the same points lie in that the inboard all overlaps and is equipped with sealed buffering circle to and equal side is offered and is used for placing eddy current sensor's mounting groove, and the difference lies in that first loop forming element is global to be equipped with first through-hole.
The lifting rod is arranged at the upper end of the lifting rod in a sawtooth shape, the upper part of the lifting rod is meshed with the driving gear through the sawtooth shape, the lower part of the lifting rod sequentially penetrates through the rack, the top cover and the first through hole, and the lower end of the lifting rod is connected to the second annular piece.
Further, it floats piece and multiaxis rotation piece in the second still to include, the below that floats piece in the first is located to the piece in the second, meet through three multiaxis rotation piece between the two, every multiaxis rotation piece is including the arc to the cover, annular upset seat and annular upset piece, the outside of annular upset seat is rotated and is connect annular upset piece, the outside of annular upset piece is rotated and is connected the arc to the cover, and the top of annular upset seat and arc are connected respectively in first interior float piece and second to the bottom of cover and float the piece.
Furthermore, each arc is evenly and fixedly provided with three first positioning blocks along the circumferential direction at equal intervals in the same horizontal plane on the inner side of the cover, and the arc-shaped turnover cover further comprises a second positioning block which is arranged above the inner side of the annular turnover seat, and the output end of the second positioning block is respectively connected to the corresponding first positioning blocks through three stainless steel pull ropes.
Furthermore, an outer telescopic sleeve and an inner telescopic sleeve are respectively arranged between the first annular member and the second annular member, and the sealing buffer ring is connected to the pipe body in a sliding mode.
A use method for monitoring the jamming and tilting device of a storage tank floating disc during multi-point detection specifically comprises the following steps:
s1, oil gas is guided into a tank body through an oil guide port, and at the moment, a first internal floating piece floats on the liquid level in the tank body and floats along with the up-and-down lifting of the oil product;
s2, the motor is started, and the vertical movement of the second annular piece is realized by controlling the rotation of the driving gear;
s3, when the second annular piece is far away from the first annular piece, the detection distance of the two layers of eddy current sensors to the waveguide tube is enlarged, and the accuracy of judging whether the waveguide tube deviates or not can be improved;
s4, when the first inner floating piece stably ascends and descends above the oil product under the limitation of the waveguide tube, the detection liquid in the liquid storage tank and the detection liquid in the annular cavity tend to be stable, and the detection liquid in the annular cavity is higher than the refraction plate;
s5, when the first liquid level meter is used for detecting the liquid level in the annular cavity, if the first inner floating piece slightly deviates, the detection liquid in the liquid storage tank enters the annular cavity, so that the data of the first liquid level meter changes, and the deviation amount of the first inner floating piece is judged;
s6, when the deviation of the first inner floating piece is too large, the detection liquid in the annular cavity also deviates, the top surface of the refraction plate is exposed, the radar wave of the first liquid level meter is refracted in the annular cavity, the first liquid level meter cannot receive the returned radar wave or data mutation, the first inner floating piece is judged to be too large, and shutdown and maintenance are immediately carried out at the moment;
s7, detecting the liquid level height in the tank body by using a second liquid level meter to obtain a distance difference H2, and detecting the distance from the first liquid level meter to the first inner floating piece to be H1 by using a first liquid level meter;
and S8, the difference value between H2 and H1 is a constant value under the state of liquid level, and if the difference value suddenly becomes larger or smaller, the first inner floating piece is blocked.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the first liquid level meter and the second liquid level meter are adopted for simultaneous detection, so that whether the first inner floating piece is jammed or not can be accurately judged;
2. detecting liquid is respectively added in the annular cavity and the liquid storage tank, and the received data of the first liquid level meter is influenced by the reflection of the refraction plate, so that whether the first internal floating piece is inclined or not is judged;
3. through float in the piece below setting can take place pivoted second in first, float in preventing the second and after the slope takes place, influence holistic leakproofness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a front view of the present invention;
FIG. 3 is a schematic view showing the internal structure of the storage tank according to the present invention;
FIG. 4 is a cross-sectional view of the first portion of the structure of FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure of portion A of FIG. 4 in a laid-flat condition;
FIG. 6 is an enlarged view of the portion A of FIG. 4 in a tilted position;
FIG. 7 is a cross-sectional view of the second portion of FIG. 3 in accordance with the present invention;
FIG. 8 is a schematic illustration of the invention of FIG. 7 after detonation;
FIG. 9 is a cross-sectional view of a top portion of the structure with a waveguide according to the present invention;
FIG. 10 is a cross-sectional view of the upper structure of the present invention without the waveguide;
FIG. 11 is a perspective view and a cross-sectional view of a first annular member of the present invention;
FIG. 12 is a perspective view and a cross-sectional view of a second ring member according to the present invention;
FIG. 13 is a schematic view of a first inner float according to the present invention;
FIG. 14 is a cross-sectional view of a first internal float according to the present invention;
FIG. 15 is a schematic structural view showing a modification of the internal structure of the storage tank in accordance with the present invention;
FIG. 16 is a schematic diagram of a portion of the structure of FIG. 15 after detonation in accordance with the present invention;
fig. 17 is a sectional view of the multi-shaft rotating member and the second positioning block in the present invention;
FIG. 18 is a schematic structural view of a second modification of the internal structure of the storage tank according to the present invention;
FIG. 19 is a cross-sectional view of the structure of FIG. 18 in accordance with the present invention;
fig. 20 is a schematic structural view of the first tilt sensing assembly with a telescoping sleeve attached.
1: storage tank, 2: vertical roll adjustment subassembly, 3: waveguide, 4: first tilt detection assembly, 5: first liquid level meter, 6: second level gauge, 7: first inner float, 8: lifter, 9: second inner float, 10: multi-shaft rotating member, 11: outer telescopic sleeve, 12: the inner telescopic sleeve is arranged at the inner side of the inner sleeve,
101: oil guide port, 102: a tank body, 103: a top cover, 104: breathing hole, 105: the diffusion pipe is arranged on the outer wall of the shell,
201: a stage, 202: drive gear, 203: a motor is arranged on the base plate and is provided with a motor,
301: a pipe body, 302: spacing arch, 303: the side hole is provided with a plurality of side holes,
401: first ring member, 402: second ring member, 403: seal cushion ring, 404: an eddy-current sensor is provided, which is provided with a magnetic field generating element,
4011: a first through-hole is formed in the first substrate,
4021: a mounting groove is arranged on the upper surface of the base,
701: floating plate, 702: annular tube, 703: annular cavity, 704: a central through hole is formed in the outer wall of the shell,
7021: vertical tube, 7022: connecting tube, 7023: a liquid storage tank,
7031: a refraction plate is arranged on the light source,
801: the saw-toothed shape is that,
1001: arc cover, 1002: annular overturning seat, 1003: an annular overturning member.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and all modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions which are within the scope of the disclosure should be understood and encompassed by the present disclosure without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Embodiment 1, this embodiment provides a be used for monitoring storage tank floating plate jamming inclination device, including storage tank 1, but storage tank 1 embeds has vertical movement's first interior float 7, 1 inboard butt joint of storage tank has guided wave pipe 3, the outside of guided wave pipe 3 is located to first interior float 7 cover, 3 inboard tops of guided wave pipe are equipped with second level gauge 6, still be equipped with first level gauge 5 in the storage tank 1, calculate the difference in height between the two through the cooperation of first level gauge 5 and second level gauge 6, and constantly detect the numerical value change of this difference in height, and then judge whether jamming appears.
Storage tank 1 includes jar body 102 and arranges top cap 103 of jar body 102 top in, the vertical placement of jar body 102 in this structure, hydraulic fluid port 101 has been seted up to its bottom side direction, hydraulic fluid port 101 inwards is equipped with diffusion tube 105, be equipped with breathing hole 104 on the top cap 103, the 3 outsides of guided wave pipe are arranged in to first level gauge 5, and vertical directional in first interior float 7, radar level gauge is chooseed for use to first level gauge 5 and second level gauge 6, guided wave pipe 3 includes inboard cavity, the closed body 301 in bottom, body 301 has laid the side hole 303 that a plurality of radially switched on along length direction equidistance, the body 301 outside has set firmly the spacing arch 302 of axial extension.
The first inner floating piece 7 comprises a floating plate 701 with a central through hole 704 arranged on the inner side, the central through hole 704 is vertically and slidably connected with the limiting protrusion 302 and the pipe body 301, oil gas in the structure is guided into the inner side of the pipe body 301 through the side hole 303 below the first inner floating piece 7, then is discharged out through the side hole 303 above the first inner floating piece 7, and then is discharged through the breathing hole 104.
Embodiment 2, this embodiment includes any of the above embodiments, and further provides a device for monitoring the jamming and tilting of the floating plate of the storage tank, wherein an annular cavity 703 is disposed in the floating plate 701, an annular pipe 702 is disposed above the floating plate 701, and the first liquid level meter 5 detects the detection liquid in the annular cavity 703 to determine whether the floating plate 701 tilts.
The annular pipe 702 is provided with a vertical pipe 7021 and a connecting pipe 7022 upwards and downwards respectively, the bottom of the connecting pipe 7022 is connected with and communicated with the annular cavity 703, the bottom of the annular cavity 703 is provided with a refraction plate 7031 upwards, the top surface of the refraction plate 7031 is inclined, and the width of the cross section of the annular cavity 703 in the structure is large so as to improve the adjusting capability during detection.
The top of the connecting pipe 7022 penetrates into the annular pipe 702, a liquid storage groove 7023 is formed at the bottom of the connecting pipe and the bottom of the annular pipe 702, detection liquid is contained in the liquid storage groove 7023, the annular cavity 703 is also contained with the detection liquid, the liquid level in the annular cavity 703 is higher than the top of the refraction plate 7031, and in the structure, the radar wave of the first liquid level meter 5 is refracted through the refraction plate 7031, so that the subsequent returned received signal is weakened.
Embodiment 3, this embodiment provides, in addition to any content in the above embodiments, a device for monitoring the jamming and tilting of the storage tank floating platform, further including a vertical distance adjusting component 2, a first tilt detecting component 4 and a lifting rod 8, where the vertical distance adjusting component 2 is disposed on the top cover 103, and an end of the vertical distance adjusting component is connected to the first tilt detecting component 4, and the first tilt detecting component 4 is located outside the waveguide 3, and the first tilt detecting component 4 detects whether the waveguide 3 tilts.
The vertical distance adjusting assembly 2 comprises a plurality of platforms 201 which are arranged above the top cover 103 along the circumferential direction at equal intervals, a rotatable driving gear 202 is arranged on the inner side of each platform 201, and a motor 203 of which the side surface is arranged at the output end and connected with the driving gear 202.
First slope determine module 4 includes from last first loop element 401 and the second loop element 402 that sets gradually down, and both all are equipped with a plurality of eddy current sensor 404 along circumference equidistance, eddy current sensor 404's the sense terminal is radial to pointing to in waveguide 3's axle center, first loop element 401 sets firmly in the below of top cap 103, but second loop element 402 is for first loop element 401 vertical motion, but be equipped with outer telescopic sleeve 11 and interior telescopic sleeve 12 between first loop element 401 and the second loop element 402 in this structure respectively, and sealed buffering circle 403 sliding connection is in body 301, can prevent that the oil gas from getting into in the first slope determine module 4.
The second annular member 402 has the same structure as the first annular member 401, and the same points of the second annular member 402 and the first annular member 401 are that the inner sides of the second annular member and the first annular member are respectively provided with a sealing buffer ring 403, and the side surfaces of the second annular member and the first annular member are respectively provided with a mounting groove 4021 for placing an eddy current sensor 404, and the different points of the second annular member and the first annular member are that the peripheral surface of the first annular member 401 is provided with a first through hole 4011, the upper end part of the lifting rod 8 in the structure is provided with a saw-toothed shape 801, the upper part of the lifting rod 8 is meshed with the driving gear 202 through the saw-toothed shape 801, the lower part of the lifting rod sequentially penetrates through the rack 201, the top cover 103 and the first through hole 4011, and the lower end part of the lifting rod is connected to the second annular member 402.
Embodiment 4, this embodiment provides an embodiment based on embodiment 1, further including a second internal floating member 9 and a multi-axis rotating member 10, where the second internal floating member 9 is disposed below the first internal floating member 7, and the two are connected by three multi-axis rotating members 10, and in this structure, the diameter of the first internal floating member 7 is much smaller than that of the second internal floating member 9, that is, the stability of the first internal floating member 7 with respect to the waveguide 3 is stronger, and the second internal floating member 9 can be tilted with respect to the first internal floating member 7.
Each multi-axis rotating part 10 comprises an arc-shaped cover 1001, an annular overturning seat 1002 and an annular overturning part 1003, the outer side of the annular overturning seat 1002 is rotatably connected with the annular overturning part 1003, the outer side of the annular overturning part 1003 is rotatably connected with the arc-shaped cover 1001, and the top end of the annular overturning seat 1002 and the bottom end of the arc-shaped cover 1001 are respectively connected with the first inner floating part 7 and the second inner floating part 9.
The first inner floating member 7 is made of transparent material, preferably of a glass structure, the second inner floating member 9 is internally provided with an annular cavity 703 and a refraction plate 7031, and radar waves of the first liquid level meter 5 can pass through the first inner floating member 7 to detect the second inner floating member 9.
Embodiment 5, this embodiment includes, in addition to the content of embodiment 1, a second internal floating member 9 and a multi-axis rotating member 10, where the second internal floating member 9 is disposed below the first internal floating member 7, and the two are connected through the three multi-axis rotating members 10, and in this structure, the diameter of the first internal floating member 7 is equal to that of the second internal floating member 9, and when the second internal floating member 9 is tilted, the first internal floating member 7 can continue to provide the floating effect.
Each multi-axis rotating part 10 comprises an arc-shaped cover 1001, an annular overturning seat 1002 and an annular overturning part 1003, the outer side of the annular overturning seat 1002 is rotatably connected with the annular overturning part 1003, the outer side of the annular overturning part 1003 is rotatably connected with the arc-shaped cover 1001, and the top end of the annular overturning seat 1002 and the bottom end of the arc-shaped cover 1001 are respectively connected with the first inner floating part 7 and the second inner floating part 9.
Embodiment 6, this embodiment provides a method for using the device for monitoring the jamming and tilting of the floating platform of the storage tank, which uses the device for monitoring the jamming and tilting of the floating platform of the storage tank, and comprises the following steps:
s1, oil gas is guided into a tank body 102 through an oil guide port 101, and at the moment, a first internal floating piece 7 floats on the liquid level in the tank body 102 and floats along with the up-and-down lifting of oil products;
s2, the motor 203 is started, and the vertical movement of the second annular part 402 is realized by controlling the rotation of the driving gear 202;
s3, when the second annular piece 402 is far away from the first annular piece 401, the detection distance of the two layers of eddy current sensors 404 to the waveguide 3 is enlarged, and the accuracy of judging whether the waveguide 3 deviates or not can be improved;
s4, when the first inner floating piece 7 is stably lifted above the oil product under the limitation of the waveguide tube 3, the detection liquid in the liquid storage tank 7023 and the detection liquid in the annular cavity 703 tend to be stable, and the detection liquid in the annular cavity 703 is higher than the refraction plate 7031;
s5, when the first liquid level meter 5 is used for detecting the liquid level in the annular cavity 703, if the first inner floating piece 7 slightly deviates, the detection liquid in the liquid storage tank 7023 enters the annular cavity 703, so that the data of the first liquid level meter 5 changes, and the deviation amount of the first inner floating piece 7 is judged;
s6, when the deviation of the first inner floating piece 7 is too large, the detection liquid in the annular cavity 703 can also deviate, the top surface of the refraction plate 7031 is exposed, the radar wave of the first liquid level meter 5 is refracted in the annular cavity 703, the first liquid level meter 5 cannot receive the returned radar wave or data mutation, and the first inner floating piece 7 is judged to be too large in deviation, and at the moment, shutdown and maintenance are required immediately;
s7, detecting the liquid level height in the tank body 102 by using a second liquid level meter 6 to obtain a distance difference H2, and detecting the distance from the first liquid level meter 5 to a first inner floating piece 7 to be H1;
and the difference value among S8, H2 and H1 is a constant value under the state of liquid level, and if the difference value suddenly becomes large or small, the first inner floating piece 7 is blocked.

Claims (8)

1. A device for monitoring the jamming and inclination of a floating disc of a storage tank comprises the storage tank (1), a first inner floating piece (7) which can move vertically is arranged in the storage tank (1), and is characterized in that,
the inner side of the storage tank (1) is butted with a waveguide tube (3), the first inner floating piece (7) is sleeved on the outer side of the waveguide tube (3), the top end of the inner side of the waveguide tube (3) is provided with a second liquid level meter (6),
a first liquid level meter (5) is further arranged in the storage tank (1), the first liquid level meter (5) is arranged on the outer side of the waveguide tube (3) and vertically points to the first inner floating piece (7),
the waveguide tube (3) comprises a tube body (301) with a hollow inner side and a closed bottom end, a plurality of radial-conduction side holes (303) are distributed on the tube body (301) along the length direction at equal intervals,
the outer side of the pipe body (301) is fixedly provided with an axially extending limiting bulge (302), the first inner floating piece (7) comprises a floating plate (701) the inner side of which is provided with a central through hole (704), the central through hole (704) is vertically and slidably connected with the limiting bulge (302) and the pipe body (301),
an annular cavity (703) is arranged in the floating plate (701), an annular pipe (702) is arranged above the floating plate (701), the annular pipe (702) is upwards and downwards provided with a vertical pipe (7021) and a connecting pipe (7022) respectively, the bottom of the connecting pipe (7022) is connected with and conducted to the annular cavity (703), a refraction plate (7031) is upwards arranged at the bottom of the annular cavity (703), the top surface of the refraction plate (7031) is inclined,
the top of the connecting pipe (7022) penetrates into the annular pipe (702), a liquid storage groove (7023) is formed at the bottom of the connecting pipe and the annular pipe (702), the liquid storage groove (7023) is internally connected with detection liquid, the annular cavity (703) is also connected with the detection liquid, the liquid level in the annular cavity (703) is higher than the top of the refraction plate (7031),
the device is characterized by further comprising a second inner floating piece (9) and a multi-shaft rotating piece (10), wherein the second inner floating piece (9) is arranged below the first inner floating piece (7) and is connected with the first inner floating piece through the three multi-shaft rotating pieces (10).
2. Device for monitoring the jamming inclination of a storage tank floating floor according to claim 1, characterized in that the storage tank (1) comprises a tank body (102) and a top cover (103) placed above the tank body (102),
the tank body (102) is vertically arranged, an oil guide opening (101) is formed in the lateral direction of the bottom of the tank body, a diffusion tube (105) is inwards installed in the oil guide opening (101), and a breathing hole (104) is formed in the top cover (103).
3. The device for monitoring the jamming and tilting of the storage tank floating floor according to claim 2, further comprising a vertical distance adjusting assembly (2) and a first tilt detecting assembly (4), wherein the vertical distance adjusting assembly (2) is arranged on the top cover (103) and is connected with the first tilt detecting assembly (4) at the end part, and the first tilt detecting assembly (4) is positioned outside the waveguide tube (3),
the vertical distance adjusting assembly (2) comprises a plurality of platforms (201) which are arranged above the top cover (103) along the circumferential direction at equal intervals, a rotatable driving gear (202) is arranged on the inner side of each platform (201), the side surface of each platform is provided with a motor (203) of which the output end is connected with the driving gear (202),
first slope determine module (4) include from last first loop member (401) and the second loop member (402) that sets gradually down, and both all are equipped with a plurality of eddy current sensor (404) along circumference equidistance, the sense terminal of eddy current sensor (404) radial directional in the axle center of wave guide pipe (3), first loop member (401) set firmly in the below of top cap (103), but second loop member (402) for first loop member (401) vertical motion.
4. The device for monitoring the jamming and tilting of the floating disk of the storage tank as claimed in claim 3, wherein the second annular member (402) has the same structure as the first annular member (401), and has the same points that the inner side of the second annular member is sleeved with a sealing buffer ring (403), and the side of the second annular member is provided with a mounting groove (4021) for placing an eddy current sensor (404), and has the difference that the circumferential surface of the first annular member (401) is provided with a first through hole (4011),
the lifting device is characterized by further comprising a lifting rod (8), the upper end of the lifting rod (8) is arranged to be in a sawtooth shape (801), the upper portion of the lifting rod (8) is meshed with the driving gear (202) through the sawtooth shape (801), the lower portion of the lifting rod penetrates through the rack (201), the top cover (103) and the first through hole (4011) in sequence, and the lower end portion of the lifting rod is connected to the second annular piece (402).
5. The device for monitoring the jamming and inclination of the storage tank floating disc according to the claim 1 is characterized in that each multi-axis rotating piece (10) comprises an arc-shaped cover (1001), an annular overturning seat (1002) and an annular overturning piece (1003), the outer side of the annular overturning seat (1002) is rotatably connected with the annular overturning piece (1003), the outer side of the annular overturning piece (1003) is rotatably connected with the arc-shaped cover (1001), and the top end of the annular overturning seat (1002) and the bottom end of the arc-shaped cover (1001) are respectively connected with the first inner floating piece (7) and the second inner floating piece (9).
6. Device for monitoring the jamming inclination of a storage tank float according to claim 1, characterized in that said first gauge (5) and said second gauge (6) are radar gauges.
7. Device for monitoring the jamming inclination of a storage tank float according to claim 4, characterized in that between said first annular element (401) and said second annular element (402) there are respectively an outer telescopic sleeve (11) and an inner telescopic sleeve (12), and said sealing buffer ring (403) is slidingly connected to the tubular body (301).
8. A use method of the device for monitoring the jamming and inclination of the floating disc of the storage tank is characterized by comprising the following steps:
s1, oil gas is guided into a tank body (102) through an oil guide port (101), and at the moment, a first inner floating piece (7) floats on the liquid level in the tank body (102) and floats along with the up-and-down lifting of the oil product;
s2, starting a motor (203), and controlling the rotation of the driving gear (202) to realize the vertical movement of the second annular piece (402);
s3, when the second annular piece (402) is far away from the first annular piece (401), the detection distance of the two layers of eddy current sensors (404) to the waveguide (3) is enlarged, and the accuracy of judging whether the waveguide (3) deviates can be improved;
s4, when the first inner floating piece (7) stably ascends and descends above the oil product under the limitation of the waveguide tube (3), the detection liquid in the liquid storage tank (7023) and the detection liquid in the annular cavity (703) tend to be stable, and the detection liquid in the annular cavity (703) is higher than the refraction plate (7031);
s5, when the first liquid level meter (5) is used for detecting the liquid level in the annular cavity (703), if the first inner floating piece (7) slightly deviates, the detection liquid in the liquid storage tank (7023) enters the annular cavity (703), so that the data of the first liquid level meter (5) are changed, and the deviation amount of the first inner floating piece (7) is judged;
s6, when the deviation of the first inner floating piece (7) is too large, the detection liquid in the annular cavity (703) also deviates, the top surface of the refraction plate (7031) is exposed, the radar wave of the first liquid level meter (5) is refracted in the annular cavity (703), the first liquid level meter (5) cannot receive the returned radar wave or data mutation, the first inner floating piece (7) is judged to be too large and is stopped for maintenance at once;
s7, detecting the liquid level height in the tank body (102) by using a second liquid level meter (6) to obtain a distance difference H2, and detecting the distance from the first liquid level meter (5) to the first inner floating piece (7) to be H1;
and the difference value among S8, H2 and H1 is a constant value under the state of liquid level, and if the difference value suddenly becomes larger or smaller, the first inner floating piece (7) is blocked.
CN202211252768.9A 2022-10-13 2022-10-13 Device for monitoring jamming inclination of storage tank floating disc and using method thereof Active CN115326016B (en)

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