Boiler narrow space optical fiber grating sensor wiring protection groove

Abstract

The utility model discloses a boiler narrow space is with fiber grating sensor wiring protection groove, including protection groove body, and the upper and lower both ends interval is equipped with corresponding fixed connection piece, to make through bolt or welding mode will protection groove body install on the boiler, protection groove body, including fixed groove, protection groove and a plurality of fixed mechanism, the fixed groove, it is U type structure, and its upper surface and lower surface interval is provided with the convex first clamping block of state, protection groove, it is U type structure, and through corresponding first clamping hole clamping in fixed groove outside. Through setting up the protection groove body of traditional integral type structure into the split type structure, to make the fixed groove, protection groove and a plurality of fixed mechanism on protection groove body through the clamping assembly, and then make fixed mechanism can according to the quick adjustment installation position of installation needs, the multi-point fiber grating sensor line is convenient for installation and layout in the narrow space of boiler.

Description

Technical Field

[0001] This utility model relates to the field of boiler sensor installation technology, specifically to a fiber optic grating sensor wiring protection groove for use in confined spaces within a boiler. Background Technology

[0002] Thermal power generation is my country's main power generation method, and power plant boilers, as one of the three main pieces of equipment in thermal power plants, have developed alongside the development of my country's thermal power industry. In recent years, environmental protection and energy conservation have become important directions for the structural adjustment of China's power industry. Under the policy guidance of "replacing small with large-scale," the thermal power industry has actively promoted the optimization and upgrading of its industrial structure, closing down a large number of small thermal power units with low energy efficiency and heavy pollution, which has greatly accelerated the upgrading of domestic thermal power equipment.

[0003] In order to better monitor the temperature during the boiler combustion process, multi-point fiber Bragg grating temperature sensors need to be installed in the confined space inside the boiler. However, the multi-point sensing of the fiber Bragg grating sensors requires the fiber optic sensor wiring path to be relatively straight. The existing wiring guides and protective slots directly fix the fiber Bragg grating lines to the protective slots with cable ties. This fixing method is very simple and cannot be differentiated and adjusted according to the wiring process. Moreover, most of the protective slots are integrated structures, instead of being designed as separate structures so that the fixing slots, protective slots and fixing mechanisms on the protective slots can be installed in number or at different distances according to the fixing needs. This affects the installation efficiency and quality of the multi-point fiber Bragg grating sensor wiring guides and protective slots in the confined space of the boiler. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide a fiber Bragg grating sensor wiring protection groove for confined boiler spaces. This would solve the technical problems of existing multi-point fiber Bragg grating sensor wiring guide and protection grooves, which have very simple fixing methods and cannot be differentiated and adjusted according to the wiring process. Moreover, most of the protection grooves are integrated structures, instead of being designed as separate structures so that the fixing grooves, protective grooves and fixing mechanisms on the protection groove can be installed in number or at different distances according to the fixing needs. This affects the installation efficiency and installation quality of multi-point fiber Bragg grating sensor wiring guide and protection grooves in confined boiler spaces.

[0005] According to the technical solution provided in the embodiments of this application, a fiber optic grating sensor wiring protection groove for a narrow space in a boiler includes a protection groove body with corresponding fixing connecting pieces spaced at its upper and lower ends, so that the protection groove body can be installed on the boiler by bolts or welding. The protective groove body includes a fixing groove, a protective groove, and multiple fixing mechanisms; The fixing groove has a U-shaped structure, and its upper and lower surfaces are provided with protruding first locking blocks at intervals. The protective groove has a U-shaped structure and is snapped onto the outside of the fixing groove through a corresponding first snap-fit ​​hole; Multiple fixing mechanisms are spaced apart and engaged between the two first locking blocks installed in the fixing slot.

[0006] Furthermore, both the first card block and the first card hole are rectangular in shape, and the inner side of the first card block is provided with a corresponding groove.

[0007] Furthermore, a corresponding sealing groove is provided on the inner side of the protective groove, and a corresponding sealing element is snapped into the sealing groove, and each of the sealing elements abuts against the front end of the fixing groove.

[0008] Furthermore, the fixing mechanism includes a fixing clip, a second locking block, and an elastic component, wherein the second locking block is located at the bottom of the fixing clip, and the elastic component is located at the top of the fixing clip.

[0009] Furthermore, the fixing clip has a rectangular structure and is provided with multiple clamping slots from top to bottom along the vertical direction.

[0010] Furthermore, the clamping groove has a wavy structure and an anti-slip strip is attached to its surface to prevent the clamped cable from slipping.

[0011] Furthermore, the elastic component includes a third locking block, a first elastic element, a second elastic element, and a connecting rod. The connecting rod is installed on the top of the fixing clamp, and the top of the connecting rod is movably installed in the moving groove on the third locking block and abuts against the first elastic element in the moving groove. The second elastic element is sleeved on the connecting rod.

[0012] Furthermore, the second and third locking blocks engage with corresponding grooves.

[0013] Furthermore, the fixing groove and the protective groove are made of metal, while the fixing clamp is made of high-performance engineering plastics PEEK (polyether ether ketone) or PTFE (polytetrafluoroethylene).

[0014] Furthermore, the fixing groove and the protective groove are made of high-temperature resistant metal material, the fixing clamp is made of high-temperature resistant engineering plastic, the temperature resistance of the fixing groove and the protective groove is not less than 600℃, and the temperature resistance of the fixing clamp is not less than 250℃.

[0015] Furthermore, the spring coefficients of the first elastic element and the second elastic element range from 1 to 2.5 N / mm.

[0016] In summary, the beneficial effects of this application are as follows: 1. By setting the traditional integrated structure of the protective tank body to a split structure, the fixing groove, protective groove and multiple fixing mechanisms on the protective tank body are assembled by snap-fit, so that the fixing mechanism can be quickly adjusted to the installation position according to the installation needs, which facilitates the installation and layout of multi-point fiber optic grating sensor lines in the small space of the boiler. Second, by improving the traditional method of fixing multi-point fiber Bragg grating sensor lines with cable ties, the fixing mechanism uses clamping slots for fixing and separating, thereby preventing the multi-point fiber Bragg grating sensor lines from getting tangled or knotted, thus improving the installation efficiency and quality of the multi-point fiber Bragg grating sensor wiring guide and protection slot in the confined space of the boiler. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the front planar structure of this utility model; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a cross-sectional structural diagram of the fixing mechanism of this utility model.

[0018] The following components are labeled in the diagram: Protective groove body 100, fixing groove 110, first locking block 111, groove 112, protective groove 120, first locking hole 121, sealing element 122, fixing mechanism 130, fixing clamp 131, clamping groove 1311, anti-slip strip 1312, second locking block 132, elastic component 133, third locking block 1331, first elastic element 1332, second elastic element 1333, connecting rod 1334. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] A protective channel for fiber optic grating sensor wiring in a confined boiler space, its structure is as follows: Figure 1 and Figure 2As shown, the system includes a protective tank body 100, with corresponding fixing connecting pieces spaced at its upper and lower ends, so that installers can install the protective tank body 100 onto the boiler using bolts or welding.

[0022] like Figure 1 and Figure 3 As shown, the protective trough body 100 includes a fixing trough 110, a protective trough 120, and multiple fixing mechanisms 130. The fixing trough 110 has a U-shaped structure, and its upper and lower surfaces are provided with protruding first locking blocks 111 at intervals. The protective trough 120 also has a U-shaped structure and is locked to the outside of the fixing trough 110 through corresponding first locking holes 121. The multiple fixing mechanisms 130 are locked at intervals between two first locking blocks 111 installed in the fixing trough 110. By setting the traditional integrated structure of the protective trough body 100 into a split structure, the fixing trough 110, the protective trough 120, and the multiple fixing mechanisms 130 on the protective trough body 100 can be assembled by locking, thereby allowing the fixing mechanism 130 to be quickly adjusted in installation position according to installation needs, which is convenient for the installation and layout of multi-point fiber optic grating sensor wiring in the small space of the boiler.

[0023] like Figure 2 and Figure 3 As shown, a corresponding sealing groove is provided on the inner side of the protective groove 120, and a corresponding sealing element 122 is snapped into the sealing groove so that when the protective groove 120 is snapped into the outer side of the fixing groove 110, the front end of the fixing groove 110 abuts against each sealing element 122, thereby sealing the connection with the rubber sealing element 122.

[0024] like Figure 1 and Figure 2 As shown, the first locking block 111 and the first locking hole 121 are both rectangular structures, and the inner side of the first locking block 111 is provided with a corresponding groove 112 so that when the fixing mechanism 130 is installed in the fixing groove 110, the second locking block 132 and the third locking block 1331 on the fixing mechanism 130 are engaged in the corresponding groove 112.

[0025] like Figure 3 and Figure 4As shown, the fixing mechanism 130 includes a fixing clip 131, a second locking block 132, and an elastic component 133. The second locking block 132 is located at the bottom of the fixing clip 131, while the elastic component 133 is located at the top of the fixing clip 131. The fixing clip 131 has a rectangular structure and is provided with multiple clamping slots 1311 from top to bottom along the vertical direction. The clamping slots 1311 have a wavy structure so that the cable of the multi-point fiber Bragg grating sensor is clamped in the wide part of the clamping slot 1311 and separated by the narrow part of the wavy structure. A layer of silicone anti-slip strip 1312 is attached to the surface of the clamping slot 1311 to prevent the clamped cable from slipping and to prevent the cable of the multi-point fiber Bragg grating sensor from getting tangled or knotted.

[0026] like Figure 4 As shown, the elastic component 133 includes a third locking block 1331, a first elastic element 1332, a second elastic element 1333, and a connecting rod 1334. The connecting rod 1334 is mounted on the top of the fixing clamp 131, and the top of the connecting rod 1334 is movably mounted in a moving groove on the third locking block 1331, abutting against the first elastic element 1332 in the moving groove. The second elastic element 1333 is sleeved on the connecting rod 1334. The first elastic element 1332 and the second elastic element 1333 are compression springs. The coefficient is 1-2.5 N / mm, so that the installer can push the third locking block 1331 down, thereby compressing the first elastic element 1332 and the second elastic element 1333 sleeved on the connecting rod 1334, so that the second locking block 132 and the third locking block 1331 are locked in the groove 112. The first elastic element 1332 and the second elastic element 1333 are compression springs. The force generated by the recovery after compression pushes the second locking block 132 and the third locking block 1331 to be fixed in the groove 112.

[0027] like Figure 3 and Figure 4 As shown, the fixing groove 110 and the protective groove 120 are made of metal, preferably 304 stainless steel, which can withstand high temperatures up to 800℃ and has high high temperature resistance. The fixing clip 131 is made of high-performance engineering plastic PEEK (polyether ether ketone) or PTFE (polytetrafluoroethylene), which can withstand high temperatures up to 250℃ and is resistant to chemical corrosion.

[0028] The working principle of this utility model of fiber optic grating sensor wiring protection groove for confined boiler spaces is as follows: By modifying the traditional integrated protective trough body 100 into a split structure, and assembling the protective trough body 100 from a fixing trough 110, a protective trough 120, and multiple fixing mechanisms 130 through snap-fit ​​assembly, when the protective trough body 100 is installed in the confined space of a boiler, the fixing trough 110 is first fixed to the internal space of the boiler by screws or welding. Then, according to the installation layout requirements of the multi-point fiber optic grating sensor within the boiler, multiple lines are snapped into the clamping slots 1311 of the fixing clamps 131 of the fixing mechanism 130. Finally, the fixing clamps 131 are snapped into the first clamping block 11 of the fixing trough 110 by the elastic component 133 at the top. Within the internal groove 112, the first elastic element 1332 and the second elastic element 1333 on the elastic component 133 compress the springs, generating a force that engages the third locking block 1331 within the groove 112. This allows the fixing mechanism 130 to be quickly adjusted in position according to installation needs, facilitating the installation and layout of the multi-point fiber optic grating sensor circuitry within the confined space of the boiler. The protective groove 120, through multiple first locking holes 121 on its upper and lower surfaces, engages with corresponding first locking blocks 111 on the upper and lower surfaces of the fixing groove 110, thus protecting the multi-point fiber optic grating sensor circuitry. By replacing the traditional cable ties used to fix the multi-point fiber optic grating sensor circuitry with clamping grooves 1311 on the fixing mechanism 130, entanglement or knotting of the multi-point fiber optic grating sensor circuitry is prevented, thereby improving the installation efficiency and quality of the multi-point fiber optic grating sensor wiring guide and protection groove within the confined space of the boiler.

[0029] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A protective trough for fiber optic grating sensor wiring in a confined space of a boiler, comprising a protective trough body (100), wherein corresponding fixing connecting pieces are provided at intervals at the upper and lower ends of the body, so that the protective trough body (100) can be installed on the boiler by bolts or welding, characterized in that: The protective groove body (100) includes a fixing groove (110), a protective groove (120), and multiple fixing mechanisms (130). The fixing groove (110) has a U-shaped structure, and its upper and lower surfaces are provided with protruding first locking blocks (111) at intervals. The protective groove (120) has a U-shaped structure and is snapped onto the outside of the fixing groove (110) through the corresponding first snap-fit ​​hole (121); Multiple fixing mechanisms (130) are spaced apart and engaged between two first locking blocks (111) installed in the fixing groove (110).

2. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 1, characterized in that: The first card block (111) and the first card hole (121) are both rectangular structures, and the inner side of the first card block (111) is provided with a corresponding groove (112).

3. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 1, characterized in that: The inner side of the protective groove (120) is provided with a corresponding sealing groove, and a corresponding sealing element (122) is snapped into the sealing groove, and each of the sealing elements (122) abuts against the front end of the fixing groove (110).

4. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 1, characterized in that: The fixing mechanism (130) includes a fixing clip (131), a second locking block (132) and an elastic component (133). The second locking block (132) is located at the bottom of the fixing clip (131), and the elastic component (133) is located at the top of the fixing clip (131).

5. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 4, characterized in that: The fixing clip (131) has a rectangular structure and is provided with multiple clamping slots (1311) from top to bottom along the vertical direction.

6. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 5, characterized in that: The clamping groove (1311) has a wave-shaped structure and a layer of anti-slip strip (1312) is attached to its surface to prevent the clamped cable from slipping.

7. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 4, characterized in that: The elastic component (133) includes a third locking block (1331), a first elastic element (1332), a second elastic element (1333), and a connecting rod (1334). The connecting rod (1334) is installed on the top of the fixing clamp (131), and the top of the connecting rod (1334) is movably installed in the moving groove on the third locking block (1331) and abuts against the first elastic element (1332) in the moving groove. The second elastic element (1333) is sleeved on the connecting rod (1334).

8. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 7, characterized in that: The second locking block (132) and the third locking block (1331) are engaged in the corresponding grooves (112).

9. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 7, characterized in that: The fixing groove (110) and the protective groove (120) are made of high temperature resistant metal material, and the fixing clip (131) is made of high temperature resistant engineering plastic. The temperature resistance of the fixing groove (110) and the protective groove (120) is not less than 600℃, and the temperature resistance of the fixing clip (131) is not less than 250℃.

10. The fiber optic grating sensor wiring protection groove for confined spaces in boilers according to claim 7, characterized in that: The spring coefficients of the first elastic element (1332) and the second elastic element (1333) range from 1 to 2.5 N / mm.

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