High-performance mineral insulated metal armored electric tracing band

Abstract

The utility model discloses a high-performance mineral insulated metal armored electric tracing band, which comprises a device shell. The fixing component comprises an outer protective shell, supporting rods, clamping plates, elastic blocks, vertical plates and clamping grooves, the outer protective shell surrounds the outer surface of the device shell, the supporting rods are fixed to the upper portion and the lower portion of the outer surface of the device shell, and the clamping plates are fixed to the outer surfaces of the vertical plates. The outer protective shell can be conveniently sleeved outside the device shell to form primary positioning, at the moment, the vertical plate on the inner side of the outer protective shell is clamped with the groove body on the device shell, the embedded structure effectively limits the circumferential displacement of the outer protective shell by utilizing a mechanical limiting principle, and meanwhile, the built-in elastic block and the clamping plate work cooperatively, so that the clamping effect is greatly improved. After the outer protective shell is installed in place, the elastic block generates elastic deformation due to stress compression and then rebounds rapidly, and the clamping plate is driven to be tightly embedded into the clamping groove.

Description

Technical Field

[0001] This utility model relates to the field of electric heat tracing technology, specifically a high-performance mineral-insulated metal-clad electric heat tracing cable. Background Technology

[0002] In modern industrial production and civil facilities, electric heating tape, as a core component to ensure the temperature stability of equipment such as pipelines and tanks, is widely used in petrochemical, natural gas transportation, power energy, and building water supply scenarios. It converts electrical energy into heat energy to provide continuous heat to the medium, effectively preventing problems such as medium solidification, increased viscosity, and equipment freezing damage caused by low temperature. It is crucial for maintaining the continuity of process flow and facility safety.

[0003] In practical applications of electric heat tracing systems, a reliable connection between the electric heat tracing equipment and the outer protective shell is a key factor in ensuring stable system operation. Currently, most electric heat tracing systems are installed by direct bonding to the outer protective shell. During long-term operation, the electric heat tracing tape continuously generates heat, and the high-temperature environment will significantly affect the performance of the bonding material. On the one hand, high temperatures will reduce the adhesiveness, and over time, its adhesive force will gradually weaken, failing to provide sufficient fixing force for the outer protective shell. On the other hand, due to the different materials of the electric heat tracing equipment and the outer protective shell, there is a difference in the coefficient of thermal expansion when heated. Repeated thermal expansion and contraction will generate stress at the interface between the two, further weakening the bonding effect. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-performance mineral-insulated metal-armored electric heating cable. During installation, the outer protective shell is conveniently fitted onto the outside of the device housing and initially positioned using fixing components. Its inner upright plate engages with the groove of the device housing, and mechanical limiting restricts circumferential displacement. The elastic block cooperates with the clamping plate. After the outer protective shell is in place, the elastic block is compressed and deformed, causing it to rebound and drive the clamping plate to embed into the clamping groove. The two tightly engage to generate clamping force, which can resist the thermal expansion stress of the electric heating cable and external vibration, impact and other loads.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-performance mineral-insulated metal-clad electric heating tape, comprising,

[0008] Device casing;

[0009] The fixing component includes an outer protective shell, a support rod, a clamping plate, an elastic block, a vertical plate, and a clamping groove. The outer protective shell surrounds the outer surface of the device housing. The support rod is fixed to the upper and lower parts of the outer surface of the device housing. The clamping plate is fixed to the outer surface of the vertical plate and extends through the outside of the support rod. The elastic block is located at one end of the outer surface of the support rod and fits against the outer end of the clamping plate. The clamping groove is opened at the upper and lower parts of the outer surface of the outer protective shell, and the clamping plate is clamped inside the clamping groove.

[0010] Preferably, the top and bottom of the outer protective shell are provided with grooves, and the upright plate is embedded in the inside of the groove.

[0011] Preferably, the outer end of the support rod is fixed with a limiting plate, and the upper and lower parts of the outer surface of the outer protective shell are provided with support rings, which are fastened to the outer surface of multiple clamping plates.

[0012] Preferably, the support ring is provided with a plug rod on its outside, and the outer protective shell is provided with a limiting half ring on its outside. The limiting half ring has a plug hole inside, and the plug rod is inserted and connected to the inside of the plug hole.

[0013] Preferably, it further includes an insulating layer, which comprises an outer layer and an inner layer, wherein the outer layer is bonded to the outer surface of the device housing and the inner layer is bonded to the inner surface of the device housing.

[0014] Preferably, an armor layer is bonded between the outer layer and the inner layer, and a heat-spreading layer is bonded to the inner wall of the armor layer.

[0015] (III) Beneficial Effects

[0016] This invention provides a high-performance mineral-insulated metal-clad electric heating cable. It has the following advantages:

[0017] (1) This high-performance mineral-insulated metal armored electric heating cable, through the fixed components provided, allows the outer protective shell to be easily fitted onto the outside of the device shell during installation, forming a preliminary positioning. At this time, the upright plate on the inner side of the outer protective shell engages with the groove on the device shell. This embedded structure utilizes the mechanical limiting principle to effectively limit the circumferential displacement of the outer protective shell. At the same time, the built-in elastic block and the clamping plate work together. When the outer protective shell is installed in place, the elastic block undergoes elastic deformation due to compression and then quickly rebounds, driving the clamping plate to tightly embed into the clamping groove. During this process, the tight engagement between the clamping plate and the clamping groove forms a strong clamping force, which can not only resist the thermal expansion stress caused by the long-term heating of the electric heating cable, but also effectively resist external vibration, impact and other dynamic loads. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a schematic diagram of the outer shell structure of the device of this utility model;

[0020] Figure 3 This is a schematic diagram of the outer protective shell structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the device housing of this utility model;

[0022] The markings in the diagram are as follows: 1. Device outer shell; 2. Outer protective shell; 3. Support rod; 4. Clamping plate; 5. Elastic block; 6. Vertical plate; 7. Limiting plate; 8. Groove; 9. Support ring; 10. Clamping groove; 11. Insert rod; 12. Outer layer; 13. Limiting half ring; 14. Insertion hole; 15. Armor layer; 16. Heat dissipation layer; 17. Inner layer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a high-performance mineral-insulated metal-clad electric heating tape, comprising,

[0025] Device casing 1;

[0026] The fixing component includes an outer protective shell 2, a support rod 3, a clamping plate 4, an elastic block 5, a vertical plate 6, and a clamping groove 10. The outer protective shell 2 surrounds the outer surface of the device housing 1. The support rod 3 is fixed to the upper and lower parts of the outer surface of the device housing 1. The clamping plate 4 is fixed to the outer surface of the vertical plate 6. The vertical plate 6 extends through and moves outside the support rod 3. The elastic block 5 is disposed at one end of the outer surface of the support rod 3 and fits against the outer end of the clamping plate 4. The clamping groove 10 is opened in the upper and lower parts of the outer surface of the outer protective shell 2. The clamping plate 4 is clamped inside the clamping groove 10.

[0027] During installation, the outer protective shell 2 can be easily fitted onto the outside of the device housing 1 to form a preliminary positioning. At this time, the upright plate 6 on the inner side of the outer protective shell 2 engages with the groove 8 on the device housing 1. This embedded structure utilizes the mechanical limiting principle to effectively limit the circumferential displacement of the outer protective shell 2. At the same time, the built-in elastic block 5 and the clamping plate 4 work together. When the outer protective shell 2 is installed in place, the elastic block 5 undergoes elastic deformation due to compression and then quickly rebounds, driving the clamping plate 4 to tightly embed into the clamping groove 10. During this process, the tight engagement between the clamping plate 4 and the clamping groove 10 forms a strong clamping force, which can not only resist the thermal expansion stress caused by the long-term heating of the electric heating tape, but also effectively resist external vibration, impact and other dynamic loads.

[0028] The top and bottom of the outer protective shell 2 are provided with grooves 8, and the upright plate 6 is embedded in the inside of the groove 8. The upright plate 6 is snapped into the inside of the groove 8.

[0029] The outer end of the support rod 3 is fixed with a limiting disk 7, and the upper and lower parts of the outer surface of the outer protective shell 2 are provided with support rings 9, which are fastened to the outer surface of multiple clamping plates 4.

[0030] The support ring 9 is provided with a plug rod 11 on its outside, and the outer protective shell 2 is provided with a limiting half ring 13 on its outside. The limiting half ring 13 has a plug hole 14 inside, and the plug rod 11 is inserted and connected to the inside of the plug hole 14. The support ring 9 can move outside the outer protective shell 2, so that the support ring 9 is fixed outside the multiple clamping plates 4 for positioning.

[0031] It also includes an insulating layer, which comprises an outer layer 12 and an inner layer 17. The outer layer 12 is bonded to the outer surface of the device housing 1, and the inner layer 17 is bonded to the inner surface of the device housing 1.

[0032] It adopts a multi-layer composite insulation structure. The inner layer 17 is a high-purity mineral insulating material with good insulation performance and high temperature resistance. The outer layer 12 is an organic insulating material, which further enhances the insulation performance and improves the flexibility and anti-aging ability of the insulation layer. An insulating reinforcement layer is set between the two insulating materials, which uses glass fiber woven tape to increase the mechanical strength of the insulation layer and prevent the insulation layer from being damaged during installation and use.

[0033] An armor layer 15 is bonded between the outer layer 12 and the inner layer 17. A heat-spreading layer 16 is bonded to the inner wall of the armor layer 15. The armor layer 15 is made of seamless metal tube and is tightly wrapped around the insulation layer through a drawing process, providing good mechanical protection for the electric heating cable and preventing damage from external forces such as squeezing and collision. The heat-spreading layer 16 is located between the metal armor layer 15 and the outer protective layer, which can evenly distribute the heat conducted from the metal armor layer 15 to the surface of the outer protective layer, further improving the heating uniformity of the electric heating cable.

[0034] The working principle of this high-performance mineral-insulated metal-armored electric heating cable is as follows: During installation, the outer protective shell 2 can be easily fitted onto the outer casing 1 of the device via a fixed component, forming a preliminary position. At this time, the upright plate 6 on the inner side of the outer protective shell 2 engages with the groove 8 on the outer casing 1. This embedded structure utilizes the mechanical limiting principle to effectively restrict the circumferential displacement of the outer protective shell 2. Simultaneously, the built-in elastic block 5 works in conjunction with the clamping plate 4. When the outer protective shell 2 is installed in place, the elastic block 5 undergoes elastic deformation due to compression and then quickly rebounds, driving the clamping plate 4 to tightly embed into the clamping groove 10. During this process, the tight engagement between the clamping plate 4 and the clamping groove 10 forms a strong clamping force, which can not only resist the thermal expansion stress generated by the long-term heating of the electric heating cable but also effectively resist external vibrations, impacts, and other dynamic loads. The insulation component adopts a multi-layer composite insulation structure. The inner layer 17 is a high-purity mineral insulating material with good insulation and high-temperature resistance. The outer layer 12 is an organic insulating material, which further enhances the insulation performance and improves the flexibility and anti-aging ability of the insulation layer. An insulating reinforcement layer is set between the two insulating materials, which uses glass fiber braided tape to increase the mechanical strength of the insulation layer and prevent the insulation layer from being damaged during installation and use. The armor layer 15 is made of seamless metal tube, which is tightly wrapped around the outside of the insulation layer through a drawing process, providing good mechanical protection for the electric heating cable and preventing the electric heating cable from being damaged by external forces such as squeezing and collision. The heat dissipation layer 16 is set between the metal armor layer 15 and the outer protective layer, which can evenly distribute the heat conducted from the metal armor layer 15 to the surface of the outer protective layer, further improving the heating uniformity of the electric heating cable.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-performance mineral-insulated metal-clad electric heating tape, characterized in that: include, Device casing (1); The fixing component includes an outer protective shell (2), a support rod (3), a clamping plate (4), an elastic block (5), a vertical plate (6), and a clamping groove (10). The outer protective shell (2) surrounds the outer surface of the device housing (1). The support rod (3) is fixed to the upper and lower parts of the outer surface of the device housing (1). The clamping plate (4) is fixed to the outer surface of the vertical plate (6). The vertical plate (6) extends through and moves outside the support rod (3). The elastic block (5) is set at one end of the outer surface of the support rod (3) and fits against the outer end of the clamping plate (4). The clamping groove (10) is opened at the upper and lower parts of the outer surface of the outer protective shell (2). The clamping plate (4) is clamped inside the clamping groove (10).

2. The high-performance mineral-insulated metal-clad electric heating tape according to claim 1, characterized in that: The outer protective shell (2) has grooves (8) at the top and bottom, and the upright plate (6) is embedded in the inside of the groove (8).

3. The high-performance mineral-insulated metal-clad electric heating tape according to claim 1, characterized in that: The outer end of the support rod (3) is fixed with a limiting plate (7), and the upper and lower parts of the outer surface of the outer protective shell (2) are provided with support rings (9), which are fastened to the outer surface of multiple clamping plates (4).

4. The high-performance mineral-insulated metal-clad electric heating tape according to claim 3, characterized in that: The support ring (9) is provided with a plug rod (11) on the outside, and the outer protective shell (2) is provided with a limiting half ring (13) on the outside. The limiting half ring (13) has a plug hole (14) inside, and the plug rod (11) is inserted and connected to the inside of the plug hole (14).

5. The high-performance mineral-insulated metal-clad electric heating tape according to claim 1, characterized in that: It also includes an insulating layer comprising an outer layer (12) and an inner layer (17), wherein the outer layer (12) is bonded to the outer surface of the device housing (1) and the inner layer (17) is bonded to the inner surface of the device housing (1).

6. The high-performance mineral-insulated metal-clad electric heating tape according to claim 5, characterized in that: An armor layer (15) is bonded between the outer layer (12) and the inner layer (17), and a heat-spreading layer (16) is bonded to the inner wall of the armor layer (15).

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