CN212410002U - Double-layer oil tank on-line monitoring system - Google Patents
Double-layer oil tank on-line monitoring system Download PDFInfo
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- CN212410002U CN212410002U CN202020995619.1U CN202020995619U CN212410002U CN 212410002 U CN212410002 U CN 212410002U CN 202020995619 U CN202020995619 U CN 202020995619U CN 212410002 U CN212410002 U CN 212410002U
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Abstract
The utility model relates to a double-layer oil tank on-line monitoring system assembly process, the process steps is: firstly, preparing an oil tank: preparing an oil pipe with double leakage detection functions; secondly, preparing an oil pipe: manufacturing an oil pipe with a leakage detection function; thirdly, field installation: after the oil tank is buried, the oil-submerged pump is installed in the oil tank, an oil outlet pipe of the oil-submerged pump is connected with a detection oil pipe when led out of the oil tank, then an optical fiber (201) in the oil tank and a leading-out wire of a detector (104) are connected with an optical fiber bundle connector and a cable bundle connector at one end of the detection oil pipe, and the optical fiber bundle connector, the cable bundle connector and a signal leading-out wire of a pressure sensor (304) at the other end of the detection oil pipe are sleeved in a protective sleeve and then led out to a server in a machine room of. The utility model relates to an assembly process of a double-layer oil tank online monitoring system, which can effectively distinguish the leakage of an inner shell and an outer shell, and even can sense the position of a leakage point on the easily damaged outer shell when the leakage occurs; and the damage to the oil pipe can be timely discovered.
Description
Technical Field
The utility model relates to a double-layer oil tank on-line monitoring system belongs to oil tank technical field.
Background
At present, the double-layer oil tank must have a leakage detection function (for detecting the leakage condition of the middle layer), and the conventional leakage detection mode is as follows: a sensor method (for SF oil tanks) in which the pressure of the intermediate layer is detected by a pressure sensor; the liquid medium method (used for FF oil tank) is that bittern is poured into the middle layer as detection medium; the vacuum method (for FF tanks) vacuums the intermediate layer to form a vacuum layer.
However, the conventional oil tank lacks an effective monitoring system for monitoring the oil tank in the using process, and the utility model is based on the SF oil tank, and can only detect whether the middle layer leaks or not through the sensor with the conventional SF oil tank; the utility model discloses double-layer oil tank on-line monitoring system can take place to carry out effectual resolution at the still interior casing of shell body to the leakage point of oil tank, and the oil pipe of drawing forth the oil tank in the use simultaneously monitors, can in time discover the damaged condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide an online monitoring system for a double-layer oil tank, which can effectively distinguish the leakage of the inner shell and the outer shell and even sense the position of a leakage point on the easily damaged outer shell when the leakage occurs; and the damage to the oil pipe can be timely discovered.
The purpose of the utility model is realized like this:
an on-line monitoring system for a double-layer oil tank comprises an inner shell, an outer shell and an intermediate layer positioned between the inner shell and the outer shell; a guide pipe is vertically welded on the outer wall of the top of the inner shell, a detection pipe is inserted into the guide pipe, penetrates through the top wall of the inner shell and abuts against the inner wall of the bottom of the inner shell, a reinforcing ring is sleeved on the detection pipe, the outer edge of the reinforcing ring is welded on the inner wall of the bottom of the inner shell, the inner edge of the reinforcing ring is welded on the outer wall of the detection pipe, a section of the inner shell, which is positioned in the detection pipe, is provided with a through hole, and the detection pipe is communicated with the middle layer through the; a wire groove is vertically arranged on the outer wall of the lower part of the guide pipe, the outer wall of the opening end of the guide pipe is downwards sunken to form a threading opening, and the threading opening and the wire groove are positioned on the same straight line;
the detector is inserted in the detection tube, the top of the detector is provided with a locking ring, the locking ring is provided with an external thread, the inner tube wall at the top of the guide tube is provided with an internal thread, the external thread of the locking ring is screwed on the internal thread of the guide tube, and the locking ring screwed in the guide tube is tightly pressed on the top end surface of the detection tube;
the outer wall of the upper part of the guide pipe is provided with an external thread, the internal thread of the top cover is screwed on the external thread of the guide pipe, and the top cover is provided with a lead hole;
a plurality of optical fibers are uniformly and tightly wound in the outer wall of the outer shell, and the first two ends of each optical fiber are led out by the contact point of the wire groove of the guide pipe and the outer shell, led into the guide pipe through the wire groove and the threading opening, combined with the lead-out cable of the detector and led out through the lead hole.
The utility model relates to a double-layer oil tank on-line monitoring system, even cover is equipped with a plurality of cyclic annular supporting shoes on the outer wall of rubber inner tube, the cover is equipped with the rubber outer tube on the cyclic annular supporting shoe, and rubber inner tube, rubber outer tube and cyclic annular supporting shoe enclose to close and constitute a plurality of mutually independent cavities, and the detection hose passes cyclic annular supporting shoe, a plurality of pressure sensor have been set to the last inlaying of detection hose, and are provided with at least one pressure sensor in every cavity.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can conveniently distinguish the inside and outside leakage through the double leakage detection mode, thereby facilitating the responsibility signing and signing in the process of transforming the conventional metal oil tank into the SF tank and afterwards; meanwhile, the leakage point can be quickly judged after the outer tank is broken, so that safety judgment and quick repair are carried out; the air pressure is changed after the oil pipe is broken, at the moment, the pressure sensors can quickly respond, and each pressure sensor is given a unique address, so that the damage of the pressure sensors can be quickly known, and operators can conveniently and timely check the pressure sensors; in addition, the optical fiber adopts a multi-beam surrounding structure, one or a few of optical fibers cannot influence the use of the optical fiber after being repaired after being broken along with the tank body in the breaking process, but when a large number of leak points occur and the OTDR cannot carry out global effective detection, the optical fiber detection fails, and the oil tank or the outer shell needs to be integrally replaced.
Drawings
Fig. 1 is a schematic structural diagram of an oil tank in the double-layer oil tank online monitoring system of the present invention (optical fiber only illustrates the second distance measuring optical fiber layer).
Fig. 2 is a partial cross-sectional view of the oil tank in the double-layer oil tank on-line monitoring system of the present invention.
Fig. 3 is a schematic structural diagram of an oil pipe in the double-layer oil tank online monitoring system of the present invention.
Wherein:
an inner shell 1 and an outer shell 2;
the device comprises a guide pipe 101, a detection pipe 102, a reinforcing ring 103, a detector 104, a locking ring 105 and a top cover 106;
a wire groove 101.1 and a threading notch 101.2;
a lead hole 106.1;
an optical fiber 201;
the device comprises a rubber inner pipe 301, an annular supporting block 302, a detection hose 303, a pressure sensor 304 and a rubber outer pipe 305.
Detailed Description
Referring to fig. 1 to 3, the utility model relates to a double-layer oil tank online monitoring system, which comprises an inner shell 1, an outer shell 2 and a middle layer between the inner shell 1 and the outer shell 2; a guide pipe 101 is vertically welded on the outer wall of the top of the inner shell 1, a detection pipe 102 is inserted into the guide pipe 101, penetrates through the top wall of the inner shell 1 and abuts against the inner wall of the bottom of the inner shell 1, a reinforcing ring 103 is sleeved on the detection pipe 102, the outer edge of the reinforcing ring 103 is welded on the inner wall of the bottom of the inner shell 1, the inner edge of the reinforcing ring 103 is welded on the outer wall of the detection pipe 102, a section of the inner shell 1, which is positioned in the detection pipe 102, is provided with a through hole, and the detection pipe 102 is communicated with the middle layer through the through hole; a wire groove 101.1 is vertically arranged on the outer wall of the lower part of the guide pipe 101, the outer wall of the opening end of the guide pipe 101 is downwards sunken to form a threading notch 101.2, and the threading notch 101.2 and the wire groove 101.1 are positioned on the same straight line;
a detector 104 is inserted into the detection tube 102, the top of the detector 104 is provided with a locking ring 105, the locking ring 105 is provided with an external thread, the inner tube wall of the top of the guide tube 101 is provided with an internal thread, the external thread of the locking ring 105 is screwed on the internal thread of the guide tube 101, and the locking ring 105 screwed into the guide tube 101 is tightly pressed on the top end surface of the detection tube 102, so that the detector 104 is fastened and the shaking is avoided;
an external thread is arranged on the outer wall of the upper part of the guide pipe 101, an internal thread of the top cover 106 is screwed on the external thread of the guide pipe 101, and a lead hole 106.1 is arranged on the top cover 106;
a plurality of optical fibers 201 are uniformly and tightly wound in the outer wall of the outer shell 2, and the first two ends of each optical fiber 201 are led out by the contact point of the wire groove 101.1 of the guide pipe 101 and the outer shell 2, led into the guide pipe 101 through the wire groove 101.1 and the threading notch 101.2, combined with the cable led out by the detector 104, and led out through the wire leading hole 106.1;
further: a plurality of annular supporting blocks 302 are uniformly sleeved on the outer wall of the rubber inner pipe 301, a rubber outer pipe 305 is sleeved on the annular supporting blocks 302, the rubber inner pipe 301, the rubber outer pipe 305 and the annular supporting blocks 302 are enclosed to form a plurality of mutually independent chambers, a detection hose 303 penetrates through the annular supporting blocks 302, a plurality of pressure sensors 304 are embedded on the detection hose 303, and at least one pressure sensor 304 is arranged in each chamber;
the manufacturing steps of the oil tank of the utility model are as follows:
firstly, preparing an oil tank:
step 3, welding the bottom of the detection tube 102 on the inner wall of the bottom of the inner shell 1, welding the outer edge of the reinforcing ring 103 on the inner wall of the bottom of the inner shell 1, and welding the inner edge of the reinforcing ring 103 on the outer wall of the detection tube 102; the top of the detection tube 102 is positioned at one end outside the inner shell 1, the upper guide tube 101 is sleeved on the top of the detection tube 102, the inner diameter of the guide tube 101 is equal to the outer diameter of the detection tube 102, the outer wall of the guide tube 101 is welded on the outer wall of the inner shell 1, and a top cover 106 is screwed on the top opening end of the guide tube 101;
step 4, drilling a through hole on the bottom shell wall of the inner shell 1 to enable the detection tube 102 to be communicated with the detection tube 102;
step 5, paving an intermediate layer on the outer wall of the inner shell 1;
step 6, winding bottom glass fibers outside the middle layer, uniformly and tightly winding the optical fibers 201 on the bottom glass fibers, unscrewing the top cover 106, leading out the first two ends of the optical fibers 201 from the contact point of the wire groove 101.1 of the guide pipe 101 and the outer shell 2, leading the two ends into the guide pipe 101 through the wire groove 101.1 and the threading notch 101.2, and screwing the top cover 106; the outer layer glass fiber is wound on the optical fiber 201 for protection;
step 7, unscrewing the top cover 106, inserting the detector 104 into the detection tube 102, and screwing a locking ring 105 arranged at the head of the detector 104 into the guide tube 101 and pressing the locking ring on the end face of the top opening end of the detection tube 102;
step 8, after the optical fiber 201 led into the guide tube 101 and the outgoing line of the detector 104 pass through the lead hole 106.1 of the top cover 106 together, the top cover 106 is screwed on the guide tube 101, and then the glass fiber paste is used for curing and sealing in the wire groove 101.1 and the threading notch 101.2;
secondly, preparing an oil pipe:
preparing a detection oil pipe in a micro-positive pressure workshop;
step 3, enabling the detection hose 303 obtained in the step 1 to pass through a plurality of annular supporting blocks 302, enabling at least one pressure sensor 304 to be arranged between every two adjacent annular supporting blocks 302, and then welding the detection hose 303 and the annular supporting blocks 302 together;
step 4, sleeving the rubber outer pipe 305, and fusing the outer ring surface of the rubber outer pipe 305 and the outer ring surface of the annular supporting block 302 together;
thirdly, field installation:
after the oil tank is buried, the oil-submersible pump is installed in the oil tank, an oil outlet pipe of the oil-submersible pump is connected with a detection oil pipe when led out of the oil tank, then an optical fiber 201 in the oil tank and a leading-out wire of a detector 104 are connected with an optical fiber bundle connector and a cable bundle connector at one end of the detection oil pipe, and the optical fiber bundle connector, the cable bundle connector and a signal leading-out wire of a pressure sensor 304 at the other end of the detection oil pipe are sleeved in a protective sleeve and then led out to a server in a machine room of; one end of each optical fiber is connected with an optical signal receiver, the other end of each optical fiber is divided into two paths after passing through an optical splitter, one path is connected with an optical signal generator, the other end of each optical fiber is connected with an optical time domain reflectometer after passing through an optical switch, and signal outgoing lines of the cable bundle connector and the pressure sensor 304 are connected to an industrial personal computer through a signal processing circuit;
an optical time-domain reflectometer (OTDR) for measuring a specific leak position of the outer case 2;
the utility model discloses the detection mode of oil tank structure does:
when the detector 104 does not detect a leakage signal and the optical signal receiver receives no delay or loss of signal transmission among the optical fibers 201, it indicates that both the inner housing 1 and the outer housing 2 are in a normal state;
when the detector 104 detects a leakage signal and the optical signal receiver receives no delay or loss of signal transmission among the optical fibers 201, a leakage point exists in the shell 1 on the surface;
when the detector 104 does not detect a leakage signal, and the optical signal receiver receives a delay or a loss of the receiving amount of a certain optical fiber among the optical fibers 201, it indicates that only the outer shell 2 has a leak point, at this time, the leak point existing in the outer shell 2 has pressed or broken the optical fiber 201, at this time, the optical signal generator stops working, the optical switch selectively switches on the link where the optical fiber 201 is located, the optical time domain reflectometer starts to know the distance S from the pressed deformation point or the broken point of the optical fiber 201 to the optical time domain reflectometer, the calculation principle is that a model is built in an analyzer connected with the optical time domain reflectometer in a modeling manner, the paths corresponding to each optical fiber correspond one by one in the model, therefore, when a certain optical fiber is connected with the optical time domain reflectometer, the corresponding path of the optical fiber in the model is lit, then the position of the leak point is marked with a red bright spot through the distance S, at this time, the orientation, thereby facilitating checking, verification and repair;
when the detector 104 detects a leakage signal and the optical signal receiver receives a delay or a loss of signal transmission among the optical fibers 201, leakage points exist in both the inner shell 1 and the outer shell 2 on the surface;
in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (2)
1. The utility model provides a double-deck oil tank on-line monitoring system which characterized in that: comprises an inner shell (1), an outer shell (2) and a middle layer positioned between the inner shell (1) and the outer shell (2); the outer wall of the top of the inner shell (1) is vertically welded with a guide pipe (101), a detection pipe (102) is inserted into the guide pipe (101) and penetrates through the top wall of the inner shell (1) to abut against the inner wall of the bottom of the inner shell (1), a reinforcing ring (103) is sleeved on the detection pipe (102), the outer edge of the reinforcing ring (103) is welded on the inner wall of the bottom of the inner shell (1), the inner edge of the reinforcing ring (103) is welded on the outer wall of the detection pipe (102), a through hole is formed in one section of the inner shell (1) located in the detection pipe (102), and the detection pipe (102) is communicated with the middle layer through the through hole; a wire groove (101.1) is vertically formed in the outer wall of the lower part of the guide pipe (101), the outer wall of the opening end of the guide pipe (101) is downwards sunken to form a threading notch (101.2), and the threading notch (101.2) and the wire groove (101.1) are positioned on the same straight line;
the detector (104) is inserted into the detection tube (102), the top of the detector (104) is provided with a locking ring (105), the locking ring (105) is provided with an external thread, the inner tube wall of the top of the guide tube (101) is provided with an internal thread, the external thread of the locking ring (105) is screwed on the internal thread of the guide tube (101), and the locking ring (105) screwed into the guide tube (101) is tightly pressed on the top end face of the detection tube (102);
an external thread is arranged on the outer wall of the upper part of the guide pipe (101), an internal thread of the top cover (106) is screwed on the external thread of the guide pipe (101), and a lead hole (106.1) is arranged on the top cover (106);
a plurality of optical fibers (201) are uniformly and tightly wound in the outer wall of the outer shell (2), and the first two ends of each optical fiber (201) are led out by the contact point of the wire groove (101.1) of the guide pipe (101) and the outer shell (2), led into the guide pipe (101) through the wire groove (101.1) and the threading notch (101.2), led out by the lead hole (106.1) after being combined with the lead-out cable of the detector (104).
2. The double-layer oil tank on-line monitoring system as claimed in claim 1, wherein: evenly the cover is equipped with a plurality of cyclic annular supporting shoes (302) on the outer wall of rubber inner tube (301), the cover is equipped with rubber outer tube (305) on cyclic annular supporting shoe (302), and rubber inner tube (301), rubber outer tube (305) and cyclic annular supporting shoe (302) enclose to close and constitute a plurality of mutually independent cavities, and cyclic annular supporting shoe (302) are passed in detection hose (303), it has a plurality of pressure sensor (304) to inlay on detection hose (303), and is provided with at least one pressure sensor (304) in every cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020995619.1U CN212410002U (en) | 2020-06-03 | 2020-06-03 | Double-layer oil tank on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020995619.1U CN212410002U (en) | 2020-06-03 | 2020-06-03 | Double-layer oil tank on-line monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN212410002U true CN212410002U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020995619.1U Active CN212410002U (en) | 2020-06-03 | 2020-06-03 | Double-layer oil tank on-line monitoring system |
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| CN (1) | CN212410002U (en) |
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- 2020-06-03 CN CN202020995619.1U patent/CN212410002U/en active Active
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