CN220525166U - Hanging type optical fiber temperature measuring device for large oil tank - Google Patents
Hanging type optical fiber temperature measuring device for large oil tank Download PDFInfo
- Publication number
- CN220525166U CN220525166U CN202322180622.4U CN202322180622U CN220525166U CN 220525166 U CN220525166 U CN 220525166U CN 202322180622 U CN202322180622 U CN 202322180622U CN 220525166 U CN220525166 U CN 220525166U
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- optical fiber
- temperature sensor
- fiber temperature
- steel cable
- oil tank
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 168
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 239000002184 metal Substances 0.000 claims description 39
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 15
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000004038 photonic crystal Substances 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides a hanging type optical fiber temperature measuring device for a large oil tank. The optical fiber temperature measuring device comprises a flange cover, an optical fiber supporting steel cable, an optical fiber temperature sensor and a mass block, wherein through holes matched with the number of the optical fiber temperature sensors are formed in the flange cover, one end of the optical fiber supporting steel cable is connected with the flange cover, the other end of the optical fiber supporting steel cable is connected with the mass block, a measuring section of the optical fiber temperature sensor penetrates through the corresponding through holes in the flange cover and extends to one end provided with the mass block along the optical fiber supporting steel cable, sealing joints used for fixing the optical fiber temperature sensor and the flange are matched with each other at the through hole of the flange, and a measuring section of the optical fiber temperature sensor penetrating through the flange is fixedly connected with the optical fiber supporting steel cable through a plurality of connecting pieces. The utility model discloses effectively solved the big problem of the large-scale oil tank internally mounted temperature measuring device degree of difficulty to can be applied in old jar temperature measurement transformation, adopt single measurement point optic fibre temperature sensor, guarantee the sensor measurement accuracy.
Description
Technical Field
The utility model belongs to the technical field of optical fiber measurement, and particularly relates to a hanging type optical fiber temperature measuring device for a large-scale oil tank.
Background
An optical fiber sensor is a sensor that converts the state of a measured object into a measurable optical signal. The device has the advantages of no electricity, small volume, light weight, electromagnetic interference resistance, corrosion resistance and the like, and is widely applied to the fields of oil gas storage and transportation, power transmission, nuclear industry and the like at present.
The optical fiber temperature sensor forms distributed or quasi-distributed temperature-sensitive and strain measuring points on the optical fiber by utilizing micro-nano structures such as a grating, an F-P cavity, an MZ cavity and the like, so as to realize the distributed or quasi-distributed temperature measurement along the optical fiber. The optical fiber is generally made of quartz or sapphire with a higher melting point, and the like, and the optical fiber sensor needs to be reliably protected and packaged in engineering application, so that the optical fiber has the characteristics of high temperature resistance, corrosion resistance, high mechanical strength and the like. The internal environment of the large oil tank is bad, corrosive substances and the like are contained, the temperature measurement of the large oil tank cannot be met by using a conventional temperature sensor, and the existing large oil tank temperature measurement has the problems that the sensor is difficult to install, the sensor is easy to damage, an old tank is difficult to reform and the like.
Disclosure of Invention
The utility model provides a hanging type optical fiber temperature measuring device for a large-scale oil tank, which aims to solve the problems that the temperature measurement of the large-scale oil tank is difficult to install, a sensor is easy to damage, an old tank measuring device is transformed and the like.
The utility model provides a hanging type optical fiber temperature measuring device for a large oil tank, which aims to solve the problems, and comprises a flange cover, an optical fiber supporting steel cable, optical fiber temperature sensors and a mass block, wherein through holes matched with the optical fiber temperature sensors in number are formed in the flange cover, one end of the optical fiber supporting steel cable is connected with the flange cover, the other end of the optical fiber supporting steel cable is connected with the mass block, a measuring section of each optical fiber temperature sensor penetrates through the corresponding through hole in the flange cover and extends to one end provided with the mass block along the optical fiber supporting steel cable, a sealing joint used for fixing the optical fiber temperature sensors with the flange cover is matched at the through hole of the flange cover, and the measuring section of each optical fiber temperature sensor penetrating through the flange cover is fixedly connected with the optical fiber supporting steel cable through a plurality of connecting pieces.
The utility model further adopts the technical scheme that: the optical fiber temperature sensors are provided with 1-4 through holes, and the flange cover is provided with 1-4 through holes, and the measuring section of each optical fiber temperature sensor passes through the corresponding through hole and is fixedly connected with the flange cover through a sealing joint; the measuring sections of 1-4 optical fiber temperature sensors penetrating through the through holes of the flange cover are fixed in a metal protection pipe and fixedly connected with the optical fiber supporting steel cable through a plurality of connecting pieces, and measuring point identifiers corresponding to measuring point positions of the measuring sections of the optical fiber temperature sensors are arranged outside the metal protection pipe.
The utility model has the preferable technical scheme that: one side of the flange cover, which is far away from the mass block, is provided with a protection device, the protection device is of a stainless steel box body structure and is fixed on the top surface of the flange cover in an argon arc welding mode, and a connection fixing structure of an optical cable and an optical fiber temperature sensor is arranged inside the protection device.
The utility model has the preferable technical scheme that: the optical fiber supporting steel cable is a multi-core steel cable formed by winding and fixing a plurality of steel wires, metal hooks are fixed on the flange cover and the mass block in an argon arc welding mode, the optical fiber supporting steel cable and the measuring section fixing area of the optical fiber temperature sensor are in a straight state, and two ends of the optical fiber supporting steel cable are respectively coiled and fixed on the two metal hooks.
The utility model has the preferable technical scheme that: the optical fiber of the optical fiber temperature sensor adopts any one of quartz optical fiber, sapphire optical fiber, YAG crystal optical fiber and photonic crystal optical fiber high temperature resistant optical fiber; the temperature sensitive element of the optical fiber temperature sensor adopts any micro-nano processing structure in an optical fiber grating engraved by an excimer laser or a femtosecond laser, a measuring section adopts a stainless steel 316L metal tube for reliable encapsulation protection, and each part adopts threaded connection, glass bead welding or high-temperature glue bonding; the optical fiber temperature sensor can increase measurement points according to actual demands.
The utility model has the preferable technical scheme that: the connecting piece is a metal wire buckling device with two fixing holes, and the optical fiber supporting steel cable and the temperature measuring section of the optical fiber temperature sensor are respectively fixed in different holes of the connecting piece.
The utility model has the preferable technical scheme that: the flange cover is a stainless steel round cover plate with the diameter of 600-800 mm and the thickness of 20-40 mm, and the fixed sealing joint and the cover plate are fixed in an argon arc welding mode.
The utility model has the preferable technical scheme that: the mass block adopts a stainless steel 304 column body with the weight of 3-5 kg.
The utility model has the preferable technical scheme that: the sealing joint consists of a base, a screw cap and a sealing gasket and is used for fixing the optical fiber temperature sensor and ensuring the tightness of the oil tank.
The mass block is a stainless steel column body provided with the metal lifting hook, the mass blocks with different shapes can be selected according to different use environments, the metal lifting hook is used for enabling the optical fiber supporting steel cable to pass through and be fixed, the weight of the mass block can be selected through the calculation of the buoyancy of the floating ball under the condition that the oil tank is full of oil, and the optical fiber supporting steel cable and the optical fiber temperature sensor are required to be in a straight state under any condition. The outer diameter of the measuring section of the optical fiber temperature sensor is 0.5-2.0 mm, the length of the measuring section is adjustable according to actual requirements, redundant steel cables are coiled on the metal hooks, the measuring section is penetrated from a sealing joint on the flange cover, the metal protection pipe of the measuring section of the optical fiber temperature sensor is reliably fixed with the optical fiber supporting steel cables by adopting a connecting piece, and the temperature field distribution in the large-scale oil tank is measured. The optical fiber supporting steel cable is formed by winding a plurality of steel wires, has the characteristics of high strength, tensile strength, corrosion resistance and the like, is used as an installation fixing carrier of the optical fiber temperature sensor, adopts flexible connection with the optical fiber supporting steel cable, and has the advantages of high mechanical strength, convenience in measurement and installation, stability and reliability.
The connecting piece adopts the double-hole metal wire buckling device, can respectively fix the measuring section of the optical fiber temperature sensor and the optical fiber supporting steel cable, ensures that the measuring point of the optical fiber temperature sensor is accurate in position, and meanwhile, the mass block is stressed by the optical fiber supporting steel cable in a bearing way, so that the measuring section of the optical fiber temperature sensor cannot be influenced, and the optical fiber temperature sensor is durable and easy to install. The outside of the optical fiber temperature sensor measuring section is provided with an independent metal protection tube, the metal protection tube and the optical fiber support steel cable are stressed together, and the optical fiber temperature sensor measuring section is not affected. The sealing joint is resistant to the temperature of more than 300 ℃, and the sealing performance in a large oil tank is ensured while the optical fiber temperature sensor is fixed. The protection device is a customized stainless steel box body, and can be used for connecting, fixing and protecting a plurality of optical fiber temperature sensors and optical cables.
Compared with the prior art, the optical fiber temperature sensor measuring section is packaged and protected by adopting stainless steel, can adapt to severe environments in an oil tank, uses a metal protection tube, is convenient to replace, and solves the problems of high installation difficulty, stability of a measuring device and the like of a large-scale oil tank sensor.
Drawings
FIG. 1 is a schematic view of the overall mounting structure of the present utility model;
FIG. 2 is an enlarged schematic view of the flange cover attachment area of the present utility model;
FIG. 3 is a schematic view of the installation of the sealing joint of the present utility model;
FIG. 4 is a schematic diagram of the structure of the optical fiber temperature sensor of the present utility model;
FIG. 5 is a schematic illustration of the connection of the fiber support cable and the metal protective tube of the present utility model;
FIG. 6 is a cross-sectional view of a different number of fiber optic temperature sensors positioned within a metal protective tube.
In the figure: 1-flange cover, 2-sealing joint, 3-protection device, 4-optical fiber supporting steel cable, 5-metal hook, 6-connecting piece, 7-optical fiber temperature sensor, 8-mass block and 9-metal protection tube.
Detailed Description
In order that the manner in which the above recited features and advantages of the present utility model are obtained will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Fig. 1 is a drawing of an embodiment, drawn in a simplified manner, for the purpose of clearly and concisely illustrating an embodiment of the present utility model. The following technical solutions presented in the drawings are specific to embodiments of the present utility model and are not intended to limit the scope of the claimed utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment provides a large-scale for oil tank hang formula optic fibre temperature measuring device specifically is as shown in fig. 1 through 5, and the device includes flange lid 1, optic fibre support steel cable 4, optic fibre temperature sensor 7, protection device 3 and quality piece 8, optic fibre temperature sensor 7 is equipped with 3, flange lid 1 is stainless steel circular apron, external diameter 650mm, thickness 20mm, and flange lid 1 central point puts evenly spaced 120 and is equipped with 3 phi 12 mm's through-holes in order to cooperate sealing joint 2 welded fastening, and flange lid 1 border position is equipped with the through-hole of bolt fastening in order to cooperate the body sealed fastening. The quality block 8 is a stainless steel column body provided with a metal lifting hook, so that the optical fiber supporting steel cable 4 is fixed with the quality block 8 by using the connecting piece 6 after passing through, the quality block is a stainless steel 304 column body with the outer diameter of 50mm, the height of 200mm and the weight of 3kg, and the optical fiber supporting steel cable and the optical fiber temperature sensor can be always in a vertical state in the measuring process. The optical fiber supporting steel cable 4 is a multi-core steel cable formed by winding and fixing a plurality of steel wires, the optical fiber supporting steel cable in the embodiment adopts 304 stainless steel with the outer diameter of 3mm, the surface is smooth and burr-free, the mechanical strength is high, the mass block can be well borne, the optical fiber temperature sensor is fixed, and the accuracy of the measuring point position of the optical fiber temperature sensor is ensured. The flange cover 1 and the mass block 8 are fixed with metal hooks 5 in an argon arc welding mode, the fixed areas of the optical fiber supporting steel cable 4 and the measuring section of the optical fiber temperature sensor 7 are in a straightened state, two ends of the fixed areas are respectively coiled and fixed on the two metal hooks 5, and the upper optical fiber supporting steel cable 4 and the flange cover 1 are welded to increase the connection stability; the metal hook 5 is fixed on the bottom surface of the flange cover 1 in an argon arc welding mode, and redundant steel cables are fixed, so that the multicore steel cable 4 is in a straightened state in the oil tank and the accuracy of the measuring point position of the optical fiber temperature sensor is guaranteed.
In the hanging type optical fiber temperature measuring device for the large-scale oil tank provided in the embodiment, as shown in fig. 1 to 4, a metal pipe with the outer diameter of 0.8mm is selected as the measuring section of the optical fiber temperature sensor 7, the outer diameter of the metal protection pipe 9 is 1.6mm, the measuring range of the optical fiber temperature sensor 7 is-50-800 ℃, and the position of a temperature sensitive unit is required to be ensured to be always in a vertical state in the fixing process along an optical fiber supporting steel cable. The measuring section of the optical fiber temperature sensor 7 passes through the corresponding through hole on the flange cover 1 and extends to one end provided with the mass block 8 along the optical fiber supporting steel cable 4, a sealing joint 2 for fixing the optical fiber temperature sensor 7 and the flange cover 1 is matched and arranged at the through hole part of the flange cover 1, the sealing joint 2 is provided with an outer diameter phi 12mm, and the inner diameter phi 4mm is matched with the sealing and fixing of the optical fiber temperature sensor 7. The measuring sections of the three optical fiber temperature sensors 7 penetrating through the flange cover 1 penetrate through a metal protection pipe 9, and the metal protection pipe 9 is fixedly connected with the optical fiber supporting steel cable 4 through a plurality of connecting pieces 6; the outside of the metal protection pipe 9 is provided with a measuring point mark corresponding to the measuring point position of the measuring section of the optical fiber temperature sensor 7, and the measuring section of the optical fiber temperature sensor 7 is fixed along the optical fiber supporting steel cable 4 at intervals of 300mm by using the connecting piece 6. The connecting piece 6 is a metal wire buckling device provided with two fixing holes, and the optical fiber supporting steel cable 4 and the temperature measuring section of the optical fiber temperature sensor 7 are respectively fixed in different holes of the connecting piece; the optical fiber supporting steel cable 4 bears the stress of the mass block 8 while ensuring the accuracy of the measuring point position of the optical fiber temperature sensor 7, so as to avoid the influence of overlarge stress of the temperature measuring section of the optical fiber temperature sensor 7 on the temperature measuring precision.
In the hanging type optical fiber temperature measuring device for the large-scale oil tank provided in the embodiment, as shown in fig. 1 and 2, the protection device 3 is of a stainless steel box structure, is fixed on the top surface of the flange cover 1 in an argon arc welding mode, and is internally provided with a connecting and fixing structure of an optical cable and an optical fiber temperature sensor; the protection device 3 not only ensures the reliable fixation of the optical fiber sensor and the optical cable joint, but also protects the optical cable and the optical fiber temperature sensor from receiving the interference of external severe environment, and is fixed on the top surface of the flange cover 1 by adopting an argon arc welding mode
In order to facilitate the installation of the optical fiber temperature sensor in the embodiment, firstly, the measuring section of the optical fiber temperature sensor is penetrated into a metal protection tube with the outer diameter phi of 1.6mm, the sealing joint 2 penetrating into the flange cover is reliably fixed with the optical fiber supporting steel cable 4 by using the connecting piece 6, the top end of the optical fiber supporting steel cable 4 is fixed with the flange cover 1, and only the mass block 8 and the optical fiber supporting steel cable 4 are required to be slowly lowered from the top of the oil tank in the installation process.
In order to facilitate the installation of the optical fiber temperature sensor in the embodiment, firstly, the measuring section of the optical fiber temperature sensor is penetrated into a metal protection tube with the outer diameter phi of 1.6mm, the sealing joint 2 penetrating into the flange cover is reliably fixed with the optical fiber supporting steel cable 4 by using the connecting piece 6, the top end of the optical fiber supporting steel cable 4 is fixed with the flange cover 1, and only the mass block 8 and the optical fiber supporting steel cable 4 are required to be slowly lowered from the top of the oil tank in the installation process.
The concrete installation method of the hanging type optical fiber temperature measuring device for the large-scale oil tank in the embodiment is as follows:
(1) Firstly, fixing a sealing joint 2, a protection device 3 and a metal hook 5 on a flange cover 1 in an argon arc welding and spot welding mode;
(2) The bottom end of the optical fiber supporting steel cable 4 passes through a metal lifting hook on the mass block 8 and is fixed by using a connecting piece, silver brazing is used for strengthening the fixing part, and argon arc welding is used for fixing the optical fiber supporting steel cable 4 and the flange cover 2 at the top end;
(3) Measuring the distance between the measuring point position of the optical fiber temperature sensor 7 and the sealing cover plate 1 by using a graduated scale, marking, penetrating the measuring section of the optical fiber temperature sensor 7 into the metal protection pipe 9, and penetrating the measuring section from the sealing cover plate 1 to the marking position;
(4) Fixing the optical fiber temperature sensor 7 along the optical fiber supporting steel cable 4 at intervals of 300mm by using a connecting piece 6, and fixing two ends of a measuring point of the optical fiber temperature sensor 7 by using connecting pieces;
(5) Tightening a nut penetrating through the sealing joint 2 of the optical fiber temperature sensor 7 to fix the optical fiber temperature sensor 7 and ensure the tightness of the large-scale oil tank;
(6) Slowly placing the fixed mass block 8, the optical fiber supporting steel cable 4 and the optical fiber temperature sensor 7 into a large-scale oil tank, and sealing and fixing the flange cover 1 and the oil tank body.
In summary, the present utility model is exemplified by one embodiment, but the present utility model is not limited to the above embodiment, and the technical effects of the present utility model can be achieved by any same or similar means, and the present utility model shall fall within the scope of protection of the present utility model.
Claims (9)
1. A hanging type optical fiber temperature measuring device for a large oil tank is characterized in that: the device includes flange lid (1), optic fibre support steel cable (4), optic fibre temperature sensor (7) and quality piece (8), be equipped with on flange lid (1) with optic fibre temperature sensor (7) quantity assorted through-hole, optic fibre support steel cable (4) one end is connected with flange lid (1), and the other end is connected with quality piece (8), the measuring section of optic fibre temperature sensor (7) passes from the through-hole that corresponds on flange lid (1) to extend to the one end that is provided with quality piece (8) along optic fibre support steel cable (4), be equipped with in the cooperation of flange lid (1) through-hole position and be used for sealing joint (2) fixed with optic fibre temperature sensor (7) and flange lid (1), the optic fibre temperature sensor (7) measuring section that passes flange lid (1) is through a plurality of connecting pieces (6) and optic fibre support steel cable (4) fixed connection.
2. The hanging type optical fiber temperature measuring device for large oil tanks according to claim 1, wherein: the optical fiber temperature sensors (7) are provided with 1-4 through holes, 1-4 through holes are formed in the flange cover (1), and the measuring section of each optical fiber temperature sensor (7) penetrates through the corresponding through hole and is fixedly connected with the flange cover (1) through the sealing joint (2); the measuring sections of 1-4 optical fiber temperature sensors (7) penetrating through the through holes of the flange cover (1) are fixed in a metal protection pipe and fixedly connected with the optical fiber supporting steel cable (4) through a plurality of connecting pieces (6), and measuring point identifiers corresponding to measuring point positions of the measuring sections of the optical fiber temperature sensors (7) are arranged outside the metal protection pipe (9).
3. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: one side of the flange cover (1) far away from the mass block (8) is provided with a protection device (3), the protection device (3) is of a stainless steel box body structure, the top surface of the flange cover (1) is fixed in an argon arc welding mode, and an optical cable and optical fiber temperature sensor connecting and fixing structure is arranged inside the flange cover.
4. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the optical fiber supporting steel cable (4) is a multi-core steel cable formed by winding and fixing a plurality of steel wires, the flange cover (1) and the mass block (8) are respectively fixed with a metal hook (5) in an argon arc welding mode, the optical fiber supporting steel cable (4) and the measuring section fixing area of the optical fiber temperature sensor (7) are in a straight state, and two ends of the optical fiber supporting steel cable are respectively coiled and fixed on the two metal hooks (5).
5. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the optical fiber of the optical fiber temperature sensor (7) adopts any one of quartz optical fiber, sapphire optical fiber, YAG crystal optical fiber and photonic crystal optical fiber high temperature resistant optical fiber; the temperature sensitive element of the optical fiber temperature sensor (7) adopts any micro-nano processing structure in an optical fiber grating engraved by an excimer laser or a femtosecond laser, a measuring section adopts a stainless steel 316L metal tube for reliable encapsulation protection, and each part adopts threaded connection, glass bead welding or high-temperature glue bonding.
6. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the connecting piece (6) is a metal wire buckling device with two fixing holes, and the optical fiber supporting steel cable (4) and the temperature measuring section of the optical fiber temperature sensor (7) are respectively fixed in different holes of the connecting piece (6).
7. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the flange cover (1) is a stainless steel round cover plate with the diameter of 600-800 mm and the thickness of 20-40 mm, and the fixed sealing joint (2) and the cover plate are fixed in an argon arc welding mode.
8. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the mass block (8) is a stainless steel 304 column with a weight of 3-5 kg.
9. The hanging type optical fiber temperature measuring device for large-scale oil tank according to claim 1 or 2, wherein: the sealing joint (2) consists of a base, a screw cap and a sealing gasket and is used for fixing the optical fiber temperature sensor (7) and ensuring the tightness of the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322180622.4U CN220525166U (en) | 2023-08-15 | 2023-08-15 | Hanging type optical fiber temperature measuring device for large oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322180622.4U CN220525166U (en) | 2023-08-15 | 2023-08-15 | Hanging type optical fiber temperature measuring device for large oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525166U true CN220525166U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322180622.4U Active CN220525166U (en) | 2023-08-15 | 2023-08-15 | Hanging type optical fiber temperature measuring device for large oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525166U (en) |
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2023
- 2023-08-15 CN CN202322180622.4U patent/CN220525166U/en active Active
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