Self-regulating temperature limited electric heat tracing band with adaptive adjustment mechanism

Abstract

The application discloses the technical fields of electric heat tracing band and relates to a self-limiting temperature electric heat tracing band provided with a self-adapting adjusting mechanism, which comprises an electric heat tracing band, wherein one end of the electric heat tracing band is provided with a power supply head, seven groups of fixing rings are arranged on the outer wall of the electric heat tracing band in a sleeving and mounting mode, mounting blocks are arranged above the seven groups of fixing rings, clamping grooves matched with clamping blocks are formed in the top of the fixing rings, clasp assemblies are arranged in first cavities and second cavities, and self-adapting adjusting mechanisms are arranged between the seven groups of fixing rings in pairs. The mounting blocks, the clamping blocks, the clamping grooves, the jacks and the clasp assemblies can fix the self-adapting adjusting mechanisms on the electric heat tracing band, and the self-adapting adjusting mechanisms can be bound to the outer wall of an oil well pipe by cooperating with lower fixing assemblies. The electric heat tracing band is wound on the outer wall of the oil well pipe to perform heating. The temperature of the outer wall of the oil well pipe is uneven. Under the action of the self-adapting adjusting mechanisms, the whole electric heat tracing band can be self-adaptively adjusted and controlled according to the local temperature of the oil well pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric heat tracing band, in particular to a self-limiting temperature electric heat tracing band with self-adaptive adjusting mechanism. BACKGROUND

[0002] The electric heat tracing band is composed of conductive polymer, two parallel metal wires and insulating sheath. The electric heat tracing band has the advantages of long heat stability time, high heat efficiency, energy saving, convenient installation, no pollution, long service life and automatic control, and is often used in liquid pipelines to prevent freezing in winter. In the process of oil transportation, the electric heat tracing band is used to assist the oil transportation in the oil well pipeline because of the high viscosity of oil. The electric heat tracing band needs to be wound on the outer wall of the pipeline for use, and the winding density is fixed, so the heating effect of the pipeline is fixed and cannot be reasonably adjusted according to the local temperature of the oil well pipeline. Therefore, we propose a self-limiting temperature electric heat tracing band with self-adaptive adjusting mechanism. SUMMARY

[0003] The present application relates to the technical field of electric heat tracing band, in particular to a self-limiting temperature electric heat tracing band with self-adaptive adjusting mechanism.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a self-limiting temperature electric heat tracing band with self-adaptive adjusting mechanism, comprising an electric heat tracing band, one end of the electric heat tracing band is provided with a power supply head, seven groups of fixing rings are installed on the outer wall of the electric heat tracing band, an installation block is arranged above each of the seven groups of fixing rings, a clamping block is arranged at the bottom of the installation block, a clamping groove matched with the clamping block is formed in the top of the fixing ring, a plug hole is formed in the left and right side walls of the clamping groove, a first cavity is formed in the installation block, a second cavity is formed in the clamping block, a clamping assembly is arranged in the first cavity and the second cavity, a self-adaptive adjusting mechanism is arranged between each two of the fixing rings, the self-adaptive adjusting mechanism comprises a connecting block arranged between each two of the fixing rings, a connecting rod is hingedly connected to the left and right side walls of the connecting block, one end of each of the two connecting rods is hingedly connected to the opposite side walls of the two installation blocks, a sleeve is arranged below the connecting block, a support seat is arranged at the bottom of the sleeve, a fixing assembly is arranged on the outer side wall of the support seat, a heat absorbing plate is arranged on the inner side wall of the support seat, two heat conducting rods are arranged in the top of the sleeve, one end of each of the two heat conducting rods penetrates through the bottom of the sleeve and is connected to the outer side wall of the heat absorbing plate, a heat conducting plate is sleeved on the outer wall of the two heat conducting rods, an activity rod is arranged on the top of the heat conducting plate, one end of the activity rod penetrates through the top of the sleeve and is connected to the connecting block arranged outside, a memory spring is sleeved on the outer wall of the activity rod, one end of the memory spring is connected to the top of the sleeve, and the other end of the memory spring is connected to the top of the heat conducting plate.

[0005] Further, the buckle assembly comprises two groups of sliding plates connected in the second cavity by sliding, and the opposite side walls of the two groups of sliding plates are connected with the second pull rope, and the side walls away from each other of the two groups of sliding plates are provided with an insertion block, one end of the two groups of insertion blocks penetrates through the left and right side walls in the second cavity and matches with the insertion hole, the outer walls of the two groups of insertion blocks are sleeved with springs, one end of the two groups of springs is connected with the side walls away from each other of the two groups of sliding plates, and the other end of the two groups of springs is connected with the left and right side walls in the second cavity, the outer side wall of the second pull rope is provided with a first pull rope, the right side wall in the first cavity is connected with a rotating shaft through a bearing, one end of the rotating shaft penetrates through the left side wall in the first cavity and is connected with an external rotating plate, one end of the rotating shaft penetrates through the left side wall in the first cavity and is connected with an external rotating plate, the outer wall of the rotating shaft is sleeved and mounted with a winding wheel, and one end of the first pull rope is connected with the outer side wall of the winding wheel.

[0006] Further, the bottom of the second cavity is provided with a guide groove, and the bottom of the two groups of sliding plates is provided with a guide block matched with the guide groove.

[0007] Further, the fixing assembly comprises a first binding belt and a second binding belt provided on the outer side wall of the support seat, the inner side wall of the second binding belt is provided with a female magic tape, and the outer side wall of the first binding belt is provided with a male magic tape matched with the female magic tape.

[0008] Further, the first binding belt and the second binding belt are nylon woven belts.

[0009] Further, the left and right side walls of the sleeve are provided with guide grooves, and the left and right side walls of the heat conduction plate are provided with guide blocks matched with the guide grooves.

[0010] Further, the support seat and the heat absorption plate are both arranged in an arc shape.

[0011] Further, the memory spring is made of copper-zinc-aluminum alloy material.

[0012] Further, the bottom of the first cavity is provided with a through groove in communication with the second cavity, and the first pull rope is connected in the through groove by sliding.

[0013] Compared with the prior art, the present application has the beneficial effects that: the installation block, the clamping block, the clamping groove, the jack and the buckle assembly can fix the self-adaptive adjusting mechanism on the electric heat tracing band, and the lower fixing assembly can bind the self-adaptive adjusting mechanism on the outer wall of the oil well pipe, the electric heat tracing band is wound on the outer wall of the oil well pipe for heating, the temperature of the outer wall of the oil well pipe is uneven, the heat generated by the outer wall of the oil well pipe can be absorbed under the action of the heat absorbing plate, and the heat is transmitted to the memory spring through the heat conducting rod and the heat conducting plate, the memory spring is heated and stretched (this is the characteristic of the memory spring, which is the prior art), the memory spring extrudes the heat conducting plate, the heat conducting plate drives the movable rod to move downward, the movable rod drives the connecting block to move downward, the connecting block drives the connecting rod to rotate, the connecting rod drives the installation block to move away, so as to push the electric heat tracing band to stretch, reduce the winding density of the electric heat tracing band at the position where the temperature of the outer wall of the oil well pipe is high, and make the whole electric heat tracing band can be self-adaptively adjusted and controlled in temperature according to the local temperature of the oil well pipe. Similarly, when the temperature of the outer wall of the oil well pipe returns to normal, the memory spring will return to its original state, so as to restore the winding density of the electric heat tracing band. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present application;

[0015] Figure 2 It is a structural schematic diagram of the sleeve of the present application;

[0016] Figure 3 It is a structural schematic diagram of the fixing ring and the installation block of the present application;

[0017] Figure 4 It is a structural schematic diagram of the present application A structure;

[0018] Figure 5 It is a structural schematic diagram of the present application B structure.

[0019] In the figure: 1, electric heat tracing band; 2, power supply head; 3, fixing assembly; 30, first binding belt; 31, second binding belt; 32, sub magic tape; 33, female magic tape; 4, fixing ring; 5, installation block; 6, self-adaptive adjusting mechanism; 60, connecting block; 61, connecting rod; 62, sleeve; 63, movable rod; 64, heat conducting rod; 65, heat conducting plate; 66, memory spring; 67, support seat; 68, heat absorbing plate; 7, buckle assembly; 70, rotating plate; 71, rotating shaft; 72, winding wheel; 73, first pull rope; 74, plug; 75, sliding plate; 76, second pull rope; 77, spring; 8, clamping block; 9, clamping groove; 10, jack; 11, first cavity; 12, second cavity. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Embodiment 1:

[0022] Please refer to Figures 1-4 The present application provides a technical solution: a self-limiting temperature electric heat tracing band with an adaptive adjusting mechanism, comprising an electric heat tracing band 1, the electric heat tracing band 1 is provided with a power supply head 2 at one end, seven groups of fixing rings 4 are installed on the outer wall of the electric heat tracing band 1, installation blocks 5 are provided above the seven groups of fixing rings 4, clamping blocks 8 are provided at the bottom of the installation blocks 5, clamping grooves 9 matched with the clamping blocks 8 are formed at the top of the fixing rings 4, plug holes 10 are formed at the left and right sidewalls of the clamping grooves 9, first cavities 11 are formed in the installation blocks 5, second cavities 12 are formed in the clamping blocks 8, clamping buckle assemblies 7 are arranged in the first cavities 11 and the second cavities 12, adaptive adjusting mechanisms 6 are arranged between the fixing rings 4, the adaptive adjusting mechanisms 6 comprise connecting blocks 60 arranged between the fixing rings 4, connecting rods 61 are hingedly arranged at the left and right sidewalls of the connecting blocks 60, one end of each of the two groups of connecting rods 61 is hingedly connected to the opposite sidewalls of the two groups of installation blocks 5, a sleeve 62 is arranged below the connecting block 60, a support seat 67 is arranged at the bottom of the sleeve 62, a fixing assembly 3 is arranged on the outer sidewall of the support seat 67, a heat absorbing plate 68 is arranged on the inner sidewall of the support seat 67, the support seat 67 and the heat absorbing plate 68 are both arranged in an arc shape and can be matched with the outer wall of the oil pipeline, two groups of heat conducting rods 64 are arranged at the top of the sleeve 62, one end of each of the two groups of heat conducting rods 64 penetrates through the bottom of the sleeve 62 and is connected to the outer sidewall of the heat absorbing plate 68, a heat conducting plate 65 is sleeved on the outer wall of the two groups of heat conducting rods 64, guide grooves are formed at the left and right sidewalls of the sleeve 62, guide blocks matched with the guide grooves are arranged on the left and right sidewalls of the heat conducting plate 65, the heat conducting plate 65 moves more stably on the outer wall of the heat conducting rod 64 under the action of the guide grooves and the guide blocks, a movable rod 63 is arranged at the top of the heat conducting plate 65, one end of the movable rod 63 penetrates through the top of the sleeve 62 and is connected to the connecting block 60 arranged outside, a memory spring 66 is sleeved on the outer wall of the movable rod 63, one end of the memory spring 66 is connected to the top of the sleeve 62, the other end of the memory spring 66 is connected to the top of the heat conducting plate 65, and the memory spring 66 is made of copper-zinc-aluminum alloy material.

[0023] Please refer to Figures 4-5The buckle assembly 7 comprises two groups of sliding plates 75 connected in sliding mode in the second cavity 12, the bottom of the second cavity 12 is provided with a guide groove, the bottom of each of the two groups of sliding plates 75 is provided with a guide block matched with the guide groove, the sliding plates 75 move more stably in the second cavity 12 under the action of the guide groove and the guide block, the opposite side walls of the two groups of sliding plates 75 are connected with a second pull rope 76, the side walls away from each other of the two groups of sliding plates 75 are provided with an insertion block 74, one end of each of the two groups of insertion blocks 74 penetrates through the left and right side walls in the second cavity 12 and is matched with the insertion hole 10, the outer walls of the two groups of insertion blocks 74 are sleeved with a spring 77, one end of each of the two groups of springs 77 is connected with the side walls away from each other of the two groups of sliding plates 75, the other end of each of the two groups of springs 77 is connected with the left and right side walls in the second cavity 12, the outer side wall of the second pull rope 76 is provided with a first pull rope 73, the right side wall in the first cavity 11 is connected with a rotating shaft 71 through a bearing, one end of the rotating shaft 71 penetrates through the left side wall in the first cavity 11 and is connected with an external rotating plate 70, one end of the rotating shaft 71 penetrates through the left side wall in the first cavity 11 and is connected with the external rotating plate 70, the outer wall of the rotating shaft 71 is sleeved with a winding wheel 72, one end of the first pull rope 73 is connected with the outer side wall of the winding wheel 72, the bottom of the first cavity 11 is provided with a through groove communicated with the second cavity 12, the first pull rope 73 is connected in sliding mode in the through groove, and the first pull rope 73 moves more stably under the action of the through groove.

[0024] Please refer to Figure 2 The fixing assembly 3 comprises a first binding belt 30 and a second binding belt 31 provided on the outer side wall of the support seat 67, the first binding belt 30 and the second binding belt 31 are nylon belts, the inner side wall of the second binding belt 31 is provided with a sub-magic tape 32, and the outer side wall of the first binding belt 30 is provided with a mother magic tape 33 matched with the sub-magic tape 32.

[0025] Working principle: the electric heat tracing band 1 is wound on the oil pipeline, the worker rotates the rotating plate 70 to drive the rotating shaft 71 to rotate, the rotating shaft 71 drives the winding wheel 72 to rotate, the winding wheel 72 can wind the first pull rope 73, the first pull rope 73 drives the second pull rope 76, the second pull rope 76 drives the two groups of sliding plates 75 to move relatively, the sliding plate 75 drives the plug block 74 to move, the sliding plate 75 stretches the spring 77, then the clamping block 8 is clamped into the clamping groove 9, the worker releases the rotating plate 70, the sliding plate 75 will drive the plug block 74 to reset under the action of the spring 77, the plug block 74 will be inserted into the insertion hole 10, the installation block 5 is installed, then the sub magic tape 32 on the second bandage 31 is attached to the female magic tape 33 on the first bandage 30, so that the supporting seat 67 can be fixed on the oil pipeline, the power supply head 2 is plugged in, the electric heat tracing band 1 can heat the oil pipeline, the electric heat tracing band 1 is wound on the outer wall of the oil well pipeline to heat, the temperature of the outer wall of the oil well pipeline will be uneven, the heat generated by the outer wall of the oil well pipeline can be absorbed under the action of the heat absorption plate 68, and the heat is transmitted to the memory spring 66 through the heat conduction rod 64 and the heat conduction plate 65. The memory spring 66 will be stretched and elongated (this is the characteristic of the memory spring 66, which is prior art), the memory spring 66 extrudes the heat conduction plate 65, the heat conduction plate 65 drives the movable rod 63 to move downward, the movable rod 63 drives the connecting block 60 to move downward, the connecting block 60 drives the connecting rod 61 to rotate, the connecting rod 61 drives the installation block 5 to move away, so as to push the electric heat tracing band 1 to stretch, reduce the winding density of the electric heat tracing band 1 at the position where the temperature of the outer wall of the oil well pipeline is relatively high, so that the whole electric heat tracing band 1 can be self-adaptively adjusted and controlled in temperature according to the local temperature of the oil well pipeline. In the same way, when the temperature of the outer wall of the oil well pipeline returns to normal, the memory spring 66 will return to its original shape, so as to restore the winding density of the electric heat tracing band 1.

[0026] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-regulating heating cable with an adaptive adjustment mechanism, comprising a heating cable (1), wherein each end of the heating cable (1) is provided with a power supply head (2), characterized in that: The electric heating cable (1) is fitted with seven sets of fixing rings (4) on its outer wall. Each of the seven sets of fixing rings (4) is provided with a mounting block (5). Each mounting block (5) is provided with a locking block (8) at its bottom. Each fixing ring (4) is provided with a slot (9) that matches the locking block (8) at its top. Each slot (9) is provided with a hole (10) on its left and right side walls. Each mounting block (5) is provided with a first cavity (11). Each locking block (8) is provided with a second cavity (12). Each first cavity (11) and second cavity (12) is provided with a buckle assembly (7). Each of the seven sets of fixing rings (4) is provided with an adaptive adjustment mechanism (6). Each adaptive adjustment mechanism (6) includes a connecting block (60) provided between each pair of fixing rings (4). Each connecting block (60) is provided with a connecting rod (61) hinged to its left and right side walls. One end of each connecting rod (61) is hinged to the opposite side wall of each of the two sets of mounting blocks (5). Next, a sleeve (62) is provided below the connecting block (60), and a support base (67) is provided at the bottom of the sleeve (62). A fixing component (3) is provided on the outer wall of the support base (67), and a heat-absorbing plate (68) is provided on the inner wall of the support base (67). Two sets of heat-conducting rods (64) are provided at the top inside the sleeve (62). One end of each set of heat-conducting rods (64) penetrates the bottom inside the sleeve (62) and connects to the outer wall of the heat-absorbing plate (68). (64) A heat-conducting plate (65) is sleeved on the outer wall. A movable rod (63) is provided on the top of the heat-conducting plate (65). One end of the movable rod (63) passes through the top of the inner sleeve (62) and is connected to the connecting block (60) provided on the outside. A memory spring (66) is sleeved on the outer wall of the movable rod (63). One end of the memory spring (66) is connected to the top of the inner sleeve (62), and the other end of the memory spring (66) is connected to the top of the heat-conducting plate (65).

2. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 1, characterized in that: The buckle assembly (7) includes two sets of sliding plates (75) slidably connected within the second cavity (12). A second pull cord (76) is connected to the opposite sidewalls of the two sets of sliding plates (75). Insert blocks (74) are provided on the opposite sidewalls of the two sets of sliding plates (75). One end of each insert block (74) penetrates the left and right sidewalls of the second cavity (12) and matches the insertion hole (10). Springs (77) are sleeved on the outer walls of each set of insert blocks (74). One end of each spring (77) is connected to the opposite sidewalls of the two sets of sliding plates (75), and the other end of each spring (77) is connected to the opposite sidewalls of the two sets of sliding plates (75). The second pull rope (76) is connected to the left and right side walls of the second cavity (12). The outer side wall of the second pull rope (76) is provided with a first pull rope (73). The right side wall of the first cavity (11) is connected to a rotating shaft (71) through a bearing. One end of the rotating shaft (71) passes through the left side wall of the first cavity (11) and is connected to the rotating plate (70) provided on the outside. The outer wall of the rotating shaft (71) is fitted with a winding wheel (72). One end of the first pull rope (73) is connected to the outer side wall of the winding wheel (72).

3. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 2, characterized in that: The bottom of the second cavity (12) is provided with a guide groove, and the bottom of both sets of sliding plates (75) is provided with guide blocks that match the guide groove.

4. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 1, characterized in that: The fixing component (3) includes a first strap (30) and a second strap (31) on the outer side wall of the support base (67), a sub-hook and loop fastener (32) on the inner side wall of the second strap (31), and a female hook and loop fastener (33) that matches the sub-hook and loop fastener (32) on the outer side wall of the first strap (30).

5. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 4, characterized in that: The first strap (30) and the second strap (31) are nylon webbing.

6. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 1, characterized in that: The sleeve (62) has guide grooves on both the left and right side walls, and the heat-conducting plate (65) has guide blocks on both the left and right side walls that match the guide grooves.

7. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 1, characterized in that: Both the support base (67) and the heat absorption plate (68) are arranged in an arc shape.

8. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 1, characterized in that: The memory spring (66) is made of copper-zinc-aluminum alloy.

9. The self-regulating heating cable with an adaptive adjustment mechanism according to claim 2, characterized in that: The bottom of the first cavity (11) is provided with a through groove that communicates with the second cavity (12), and the first pull rope (73) is slidably connected in the through groove.

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