Armored heat tracing cable fixing device

Abstract

The utility model discloses an armored heat tracing cable fixing device, which comprises a pull ring, a gasket and an adjusting assembly, wherein the pull ring is sleeved on the periphery of a pipeline and is adjustable in tightness; the gasket is connected onto the pull ring and is sleeved on the outer surface of an armored heat tracing cable; the adjusting assembly is connected with the pull ring and is used for adjusting the tightness of the pull ring; the gasket and the pull ring form an annular body on the pull ring, and the tightness of the annular body is adjusted through the adjusting assembly, so that the armored heat tracing cable is attached to the surface of a pipeline. The armored heat tracing cable fixing device is used for fixing an armored heat tracing cable on a pipeline, tightness is adjustable through cooperation of the adjusting assembly and the pull ring, and the armored heat tracing cable fixing device is convenient to disassemble and assemble, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to a fixing device for a sheathed heating cable. Background Art

[0002] In nuclear power plants, sheathed electric heating cables are used for tracing pipelines such as boric acid pipelines, sodium solution pipelines, chilled water, instrument pipelines and other special process pipelines to maintain the fluid temperature and prevent crystallization or freezing of boric acid, sodium solution and other fluid media. The electric tracing system plays an important role in maintaining the safe and stable operation of nuclear power units. At present, the laying and removal operation processes of the electric tracing cables in nuclear power plants are relatively cumbersome. The large number of processes makes it difficult to control the quality of the laying and removal processes of the electric tracing cables, and the construction and installation time is long.

[0003] The sheathed heating cable is used for pipeline tracing heating. In order to achieve a better heating effect, the body of the sheathed heating cable needs to be closely attached to the pipeline surface during installation. The existing installation process is to use metal wires and stainless steel mesh belts to tie them to the pipeline. Among them, the metal wire tying method results in a small stress area of the sheathed heating cable, and the sheathed heating cable cannot be well attached to the pipeline surface. The metal wires and stainless steel mesh belts need to be pretreated before construction operations, and a large number of tying points need to be set on a single pipeline, and multiple ties are required to meet the laying requirements. The labor cost for this process is relatively high. When removing the sheathed heating cable, the metal wires and stainless steel mesh belts need to be directly cut and removed, and cannot be reused, which not only wastes materials but also greatly increases the cost.

[0004] Therefore, there is an urgent need for a fixing device for a sheathed heating cable that can be quickly disassembled and assembled, which simplifies the installation process of the sheathed heating cable and saves manpower and material resources. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a fixing device for a sheathed heating cable that can be quickly disassembled and assembled.

[0006] The utility model provides a fixing device for a sheathed heating cable, which includes a pull ring that can be sleeved on the outer circumference of the pipeline and whose tightness can be adjusted, a gasket connected to the circumference of the pull ring and used to fit on the outer surface of the sheathed heating cable, and an adjusting component connected to the pull ring and used to adjust the tightness of the pull ring.

[0007] The gasket forms a ring body with the pull ring. By adjusting the tightness of the ring body through the adjusting component, the sheathed heating cable is tightened to fit on the pipeline surface.

[0008] In some embodiments, the surface of the gasket facing the pull ring is provided with an arc groove for conforming to the outer surface of the sheathed heating cable.

[0009] In some embodiments, the gasket is an arc-shaped piece that fits the outer surface of the armored heating cable, and extension parts are respectively provided on opposite sides of the gasket to connect the pull rings.

[0010] In some embodiments, the pull ring includes a connecting part and a pulling part. A plurality of buckle grooves are arranged at intervals along the length direction of the pulling part at the first end of the pulling part; one end of the connecting part and the second end of the pulling part are respectively connected to opposite sides of the gasket;

[0011] The adjusting assembly includes a tightening channel and an adjusting member; the adjusting member is located on one side of the tightening channel; the opposite other end of the connecting part is connected to the adjusting assembly, and the first end of the pulling part passes through the tightening channel, and the tightening is realized by the cooperation of the buckle grooves and the buckle teeth on the adjusting member.

[0012] In some embodiments, the adjusting assembly includes a support seat, a connecting block connected to one side of the support seat, and an adjusting member rotatably penetrating through the support seat; a plurality of buckle teeth are arranged along the axial direction on the outer peripheral surface of the adjusting member;

[0013] A through hole penetrating through opposite ends of the connecting block is provided in the connecting block, and the through hole forms the tightening channel and is communicated with the interior of the support seat; the buckle teeth on the adjusting member can protrude into the tightening channel and cooperate with the buckle grooves on the pulling part.

[0014] In some embodiments, the adjusting member includes a bolt.

[0015] In some embodiments, the gasket is detachably connected between the connecting part and the pulling part.

[0016] In some embodiments, first slits and second slits are respectively provided at opposite ends of the gasket; one end of the connecting part passes through the first slit, and a bent first limiting part is provided at the end of the connecting part to prevent the connecting part from detaching from the gasket; the end of the second end of the pulling part passes through the second slit, and a bent second limiting part is provided at the end of the second end to prevent the pulling part from detaching from the gasket.

[0017] In some embodiments, the connecting part is a long strip of stainless steel sheet, and the pulling part is a long strip of stainless steel sheet.

[0018] In some embodiments, the gasket is a stainless steel sheet.

[0019] The armored heating cable fixing device of the present utility model is used to fix the armored heating cable on a pipeline, and realizes adjustable tightness through the cooperation of the adjusting assembly and the pull ring, is convenient for disassembly and assembly, safe and reliable, and saves manpower and material resources. Description of the Drawings

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0021] Figure 1 is a schematic structural view of an armored heating cable fixing device according to an embodiment of the present utility model;

[0022] Figure 2 is a front view of an armored heating cable fixing device according to an embodiment of the present utility model. Specific Embodiments

[0023] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will now be described in detail with reference to the drawings.

[0024] As Figure 1 、 Figure 2 shown, an armored heating cable fixing device according to an embodiment of the present utility model may include a pull ring 10, a gasket 20, and an adjustment assembly 30.

[0025] The gasket 20 is connected to the circumference of the pull ring 10 and can form a complete ring body with the pull ring 10. Among them, the pull ring 10 is used to be sleeved on the outer circumference of the pipeline, and the gasket 20 is used to fit on the outer surface of the armored heating cable, so as to fix the armored heating cable on the outer circumference of the pipeline. The adjustment assembly 30 is connected to the pull ring 10 and is used to adjust the tightness of the pull ring 10, so that the tightness of the pull ring 10 is adjustable, and the armored heating cable can be tightened to fit on the surface of the pipeline.

[0026] The above-mentioned pipeline includes, but is not limited to, boric acid pipelines, sodium solution pipelines, chilled water, instrument pipelines, and other special process pipelines in nuclear power plants.

[0027] The pull ring 10 may include a connecting portion 11 and a pulling portion 12. One ends of the connecting portion 11 and the pulling portion 12 are respectively connected to opposite sides of the gasket 20, and the other ends of the connecting portion 11 and the pulling portion 12 are respectively connected to the adjustment assembly 30, and the one ends of both can be opened and closed.

[0028] Specifically, both the connecting portion 11 and the pulling portion 12 are strip-shaped structures. To withstand high temperatures during heating, the connecting portion 11 and the pulling portion 12 are preferably made of stainless steel material (mainly stainless steel sheets), and also have anti-rust, anti-oxidation, and anti-corrosion properties. The gasket 20 is also preferably made of stainless steel material to form a stainless steel sheet.

[0029] The pull ring 10 and the gasket 20 are further preferably made of elastic stainless steel, so that the pull ring 10 and the gasket 20 have relatively large elasticity in the transverse direction, ensuring that they will not break when installed on pipelines with different diameters.

[0030] The connecting part 11 has opposite ends, one of which is connected to the gasket 20 and the opposite end is connected to the adjusting assembly 30.

[0031] The connecting part 11 can be bent into an arc shape and fitted to the outer surface of the pipeline.

[0032] The pulling part 12 has opposite ends, namely the first end and the second end. The second end of the pulling part 12 is connected to the gasket 20, and is located on the opposite sides of the gasket 20 from one end of the connecting part 11. The first end of the pulling part 12 is used to connect the adjusting assembly 30 and can be pulled and moved relative to the adjusting assembly 30, so as to adjust the inner diameter (i.e., the diameter) of the ring formed by the pull ring 10 and the gasket 20.

[0033] The whole connecting part 11 can be a strip-shaped structure with uniform thickness and width, or, as Figure 1 shown, the thickness and width of the end of the connecting part 11 connected to the gasket 20 are greater than those of the other end of the connecting part 11. The whole pulling part 12 can be a strip-shaped structure with uniform thickness and width, or, as Figure 1 shown, the thickness and width of the second end of the pulling part 12 connected to the gasket 20 are greater than those of the first end of the pulling part 12.

[0034] The inner diameter of the ring is mainly adjusted according to the diameter of the pipeline to meet the installation and use of the armored heating cable on pipelines with different diameters.

[0035] Furthermore, the adjustment of the inner diameter of the ring is mainly achieved by the change in the length of the pulling part 12. Therefore, in terms of length, the length of the pulling part 12 is greater than that of the connecting part 11, so as to adjust the diameter of the ring by changing the length of the pulling part 12 in the ring through the movement of the pulling part 12.

[0036] The gasket 20 is connected between the connecting part 11 and the pulling part 12 and also forms a part of the outer periphery of the ring.

[0037] To make the gasket 20 fit on the outer surface of the armored heating cable, optionally, the surface of the gasket 20 facing the pull ring 10 is provided with an arc-shaped groove 200, and the arc-shaped groove 200 is adapted to the outer surface of the armored heating cable so as to be able to fit on the outer surface of the armored heating cable. The arc-shaped groove 200 can be formed by concave processing on the surface of the gasket 20 facing the center of the ring, so that the inner concave surface of the arc-shaped groove faces the center of the ring, and the surface of the gasket 20 facing away from the center of the ring forms a protrusion. Or, the gasket 20 is an arc-shaped sheet that fits the outer surface of the armored heating cable. To connect with the connecting part 11 and the pulling part 12, the opposite sides of the gasket 20 are respectively provided with extension parts.

[0038] The gasket 20 is connected to the connecting portion 11 and the buckling portion 12 in a detachable manner, which facilitates disassembly, assembly, and replacement of gaskets 20 of different sizes, meeting the installation of armored heating cables of different sizes on pipelines.

[0039] In Figure 1 and Figure 2 In the illustrated embodiment, first slits 21 and second slits 22 are respectively provided at opposite ends of the gasket 20. One end of the connecting portion 11 passes through the first slit 21, and a bent first limiting portion 111 is provided at this end of the connecting portion 11. The first limiting portion 111 is used to prevent the connecting portion 11 from detaching from the gasket 20 by itself. The first limiting portion 111 can be, but is not limited to, a U-shaped or V-shaped hook portion.

[0040] The buckling portion 12 passes through the second slit 22 at the end of its second end, and a bent second limiting portion 121 is provided at the end of the second end of the buckling portion 12 to prevent the buckling portion 12 from detaching from the gasket 20 by itself. The second limiting portion 121 can be, but is not limited to, a U-shaped or V-shaped hook portion.

[0041] When connecting the gasket 20 between the connecting portion 11 and the buckling portion 12, after aligning the first slit 21 with the first limiting portion 111 of the connecting portion 11, the first slit 21 can be sleeved outside the first limiting portion 111 along the first limiting portion 111, and then the second limiting portion 121 of the buckling portion 12 is aligned with the second slit 22, and the buckling portion 12 is pressed down so that the second limiting portion 121 passes through the second slit 22.

[0042] In some embodiments, the adjusting assembly 30 includes a support base 31, a connecting block 32, and an adjusting member 33. The support base 31 is a structure with a through channel, for example, it can be a cylinder; the connecting block 32 is connected to one side of the support base 31, and a through hole penetrating opposite ends thereof is provided in the connecting block 32, and the through hole forms a tightening and loosening channel 320 and is communicated with the through channel of the support base 31.

[0043] The adjusting member 33 is rotatably inserted into the support base 31. The inner diameter of the through channel in the support base 31 is set larger than the outer diameter of the adjusting member 33 so that the adjusting member 33 can rotate freely.

[0044] One end of the connecting portion 11 is connected to the connecting block 32 and is relatively fixed to the connecting block 32. The first end of the buckling portion 12 penetrates into the tightening and loosening channel 320 and can move back and forth along the tightening and loosening channel 320. The first end of the buckling portion 12 realizes the movement or positioning of the first end of the buckling portion 12 by interfering with the adjusting member 33 in the tightening and loosening channel 320.

[0045] Wherein, a plurality of buckle grooves 120 are provided on the first end of the buckling portion 12 at intervals along the length direction of the buckling portion 12, and a plurality of buckle teeth 330 are provided on the outer peripheral surface of the adjusting member 33 along the axial direction of the adjusting member 33.

[0046] The engaging teeth 330 on the adjusting member 33 can protrude into the tightening and loosening channel 320 and cooperate with the engaging groove 120 on the pulling buckle portion 12 to realize the tightening and loosening of the pull ring 10. For the tightening and loosening operation of the pull ring 10, the pulling buckle portion 12 can be pulled or the adjusting member 33 can be rotated, and the cooperation between the engaging teeth 330 on the adjusting member 33 and the engaging groove 120 is used to drive the pulling buckle portion 12 to move along the circular tangential direction to tighten or loosen.

[0047] At least one end of the adjusting member 33 is provided with a protruding step or other structures, and the step or other structures are outside the support seat 31, so as to axially limit the adjusting member 33 within the support seat 31 and prevent it from disengaging from the support seat 31, avoiding the risk of disengagement and loss.

[0048] As an option, the adjusting member 33 can be realized by a bolt, and the engaging teeth 330 are the threads on the bolt.

[0049] When the armored heat tracing cable fixing device of the present utility model is in use, the pulling buckle portion 12 first disengages from the adjusting assembly 30, so that the pull ring 10 is in an open state. After placing the armored heat tracing cable on the pipeline, the pull ring is placed around the outer circumference of the pipeline and the armored heat tracing cable, and the armored heat tracing cable is aligned and fitted inside the gasket 20. The first end of the pulling buckle portion 12 is inserted into the adjusting assembly 30, the pulling buckle portion 12 is tightened or the adjusting member 33 is rotated to adjust the length of the pulling buckle portion 12 after passing through the tightening and loosening channel 320, so that the whole pull ring 10 fits onto the outer surface of the pipeline, and then the pulling buckle portion 12 is tightened to drive the gasket 20 to closely adhere to the armored heat tracing cable, and the armored heat tracing cable is clamped tightly on the outer surface of the pipeline.

[0050] When it needs to be disassembled, the pulling buckle portion 12 is pulled backward or the adjusting member 33 is rotated backward to loosen the pull ring 10 and the gasket 20.

[0051] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An armored tracing cable fixing device, characterized in that, It includes a pull ring for sleeving around the outer periphery of a pipeline and having adjustable tightness, a gasket connected circumferentially to the pull ring and for fitting on the outer surface of an armored heating cable, and an adjusting assembly connected to the pull ring and for adjusting the tightness of the pull ring; The gasket forms an annular body with the pull ring on the pull ring, and the tightness of the annular body is adjusted by the adjusting assembly to tightly hoop the armored heating cable to fit on the pipeline surface.

2. The armored tracing cable fixing device according to claim 1, characterized in that, The surface of the gasket facing the pull ring is provided with an arc-shaped groove for conforming to the outer surface of the armored heating cable.

3. The armored tracing cable fixing device according to claim 1, characterized in that, The gasket is an arc-shaped piece conforming to the outer surface of the armored heating cable, and extension parts are respectively provided on opposite sides of the gasket to connect the pull ring.

4. The armored tracing cable fixing device according to claim 1, characterized in that, The pull ring includes a connecting part and a pulling part. A plurality of buckle grooves are provided at the first end of the pulling part at intervals along the length direction of the pulling part; One end of the connecting part and the second end of the pulling part are respectively connected to opposite sides of the gasket; The adjusting assembly includes a tightness channel and an adjusting member; The adjusting member is located on one side of the tightness channel; The opposite other end of the connecting part is connected to the adjusting assembly, and the first end of the pulling part passes through the tightness channel, and the tightness is achieved by the cooperation of the buckle groove with the buckle teeth on the adjusting member.

5. The armored tracing cable fixing device according to claim 4, characterized in that, The adjusting assembly includes a support seat, a connecting block connected to one side of the support seat, and an adjusting member rotatably inserted in the support seat; A plurality of buckle teeth are provided on the outer peripheral surface of the adjusting member along its axial direction; A through hole penetrating opposite ends of the connecting block is provided in the connecting block, and the through hole forms the tightness channel and is connected to the inside of the support seat; The buckle teeth on the adjusting member can protrude into the tightness channel to cooperate with the buckle grooves on the pulling part.

6. The armored tracing cable fixing device according to claim 5, wherein, The adjusting member includes a bolt.

7. The armored tracing cable fixing device according to claim 4, characterized in that, The gasket is detachably connected between the connecting part and the pulling part.

8. The armored tracing cable fixing device according to claim 7, characterized in that, First slits and second slits are respectively provided at opposite ends of the gasket; One end of the connecting part passes through the first slit, and a bent first limiting part is provided at the end of the connecting part to prevent the connecting part from detaching from the gasket; The second end of the pulling part passes through the second slit, and a bent second limiting part is provided at the end of the second end to prevent the pulling part from detaching from the gasket.

9. The armored tracing cable fixing device according to any one of claims 4-8, characterized in that, The connecting part is a long strip of stainless steel sheet, and the pulling part is a long strip of stainless steel sheet.

10. The armored tracing cable fixing device according to any one of claims 4-8, characterized in that, The gasket is a stainless steel sheet.

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