Electric heating tape redundant loop module and electric heat tracing pipeline system

Abstract

The invention relates to the technical field of heat tracing and heat preservation, in particular to a ribbon heater redundant loop module and an electric heat tracing pipeline system.The ribbon heater redundant loop module comprises a pipeline main body part, an extension part and a ribbon heater redundant part, the extension part is in heat transfer contact with the main body part, and the ribbon heater redundant part is in a curve shape; the ribbon heater redundancy part extends along the outer wall of the pipeline main body part, and the ribbon heater redundancy part is arranged close to the extension part in the axial direction of the pipeline main body part. The invention aims to provide an electric heating tape redundant loop module and an electric heat tracing pipeline system aiming at at least one technical problem related in the background technology.

Description

Technical Field

[0001] The present application relates to the technical field of heat tracing and thermal insulation, and in particular to an electric heating belt redundant circuit module and an electric heating pipeline system. Background Art

[0002] The electric heating system is a temperature maintenance system commonly used in industrial equipment and pipelines. It can provide a stable temperature maintenance effect, thereby ensuring the normal operation of the equipment or the medium in the pipeline within a limited temperature range. The constant power electric heating system has a constant power output that does not change with the external environment, insulation materials, and heating materials. It is widely used in the heating, antifreeze, or process temperature maintenance of pipeline systems, storage tanks, valves, pump bodies, or instrument pipelines in the petroleum, chemical, electric power, and metallurgy industries.

[0003] The heat output per unit length of the series constant power heating cable is constant. The longer the heating cable is, the greater the total power output is. The maximum use length of a single circuit is relatively long, and it is widely used to maintain the temperature of pipelines. However, since pipelines are generally long, although many pipelines use heating cables, there is still a serious problem of heat loss. Summary of the invention

[0004] The purpose of the present application is to provide an electric heating belt redundant circuit module and an electric heating pipeline system in view of at least one technical problem involved in the background technology.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] One aspect of the present application provides an electric belt redundant circuit module, comprising a pipe main body, an extension and an electric belt redundant part, the extension being in heat transfer contact with the main body, the electric belt redundant part being curved, the electric belt redundant part extending along the outer wall of the pipe main body, and the electric belt redundant part being arranged close to the extension in the axial direction of the pipe main body.

[0007] Optionally, the redundant electric heating belt portion includes a plurality of electric heating belt segments arranged in a circumferential direction of the pipe main body portion.

[0008] The beneficial effect of this technical solution is that it can enable the redundant parts of the electric heating belt to be concentrated in a certain section of the pipeline body for heating, so that the heating effect is obvious and the heating efficiency is high.

[0009] Optionally, the electric heating belt redundancy unit includes S-segment heating belts.

[0010] The beneficial effect of this technical solution is that: in this way, not only can the redundant electric belt section have multiple electric belt sections, but also the two ends of the redundant electric belt section can be easily connected to other parts of the electric belt.

[0011] Optionally, the extension piece and each of the electric heating belt segments are arranged on the same circumference of the pipe main body.

[0012] The beneficial effect of this technical solution is that the heat loss of the pipeline body is mainly concentrated at the location of the extension part. Arranging multiple sections of electric heating belts in one section on the pipeline body can centrally heat the pipeline body and achieve the effect of efficient heat supplement.

[0013] Optionally, in the axial direction of the pipe main body, the size of the electric heating belt section is not less than the size of the extension piece.

[0014] The beneficial effect of this technical solution is that: in this way, the electric heating band section can cover the axial length of the extension part on the pipeline main body, so that the heat generated by the electric heating band section can compensate for the heat dissipated by the extension part to a large extent.

[0015] Optionally, the electric heating belt redundant circuit module provided in the present application also includes a first glass tape and a second glass tape both fixed to the pipe main body, the first glass tape and the second glass tape both extend along the circumference of the pipe main body, and each of the electric heating belt segments is located between the pipe main body and each of the glass tapes.

[0016] The beneficial effect of this technical solution is that each electric heating belt segment can better fit the pipeline main body, thereby supplementing the heat of the pipeline main body.

[0017] Optionally, the extension part includes a pipe support, which includes a support body, a ring part and a bolt part, the ring part is sleeved on the pipe body, the ring part is fixed to the support body, the bolt part is fixed to the ring part, and the bolt part is located between two adjacent electric heating belt sections in the circumferential direction of the pipe body.

[0018] The beneficial effect of this technical solution is that it enables the electric heating band section to be closer to the bolt part and other structural settings of the extension part, thereby compensating the heat dissipated by the extension part in a concentrated, direct and rapid manner, thereby reducing the adverse effects of the heat dissipated by the extension part.

[0019] Optionally, in the axial direction of the pipe main body, the first glass tape is located on one side of the bolt part, and the second glass tape is located on the other side of the bolt part, the first glass tape and the second glass tape intersect to form a first intersection point and a second intersection point, and in the circumferential direction of the pipe main body, the first intersection point is located on one side of the bolt part, and the second intersection point is located on the other side of the bolt part.

[0020] The beneficial effect of this technical solution is that: that is, the first glass tape and the second glass tape are crossed on both sides of the bolt part, thereby increasing the tension of the first glass tape and the second glass tape, so that each electric heating tape section can fit more closely with the main body of the pipe, thereby optimizing the heat supplement effect.

[0021] Optionally, the extension portion includes a branch pipe, and the electric heating belt redundant portion also includes a first branch pipe heating supplement section and a second branch pipe heating supplement section, the first branch pipe heating supplement section, the second branch pipe heating supplement section and each of the electric heating belt sections are connected in sequence, the first branch pipe heating supplement section and the second branch pipe heating supplement section are both in heat exchange contact with the branch pipe, and in the radial direction of the branch pipe, the first branch pipe heating supplement section and the second branch pipe heating supplement section are located on opposite sides of the branch pipe.

[0022] The beneficial effect of this technical solution is that: since the branch pipe is connected to the main part of the pipeline, the fluid in the main part of the pipeline will flow into the branch pipe, and the heat dissipated by the branch pipe may be greater than that of other parts of the extension part. By arranging the first branch pipe heating section and the second branch pipe heating section on both sides of the branch pipe, the branch pipe and the fluid in the branch pipe can be heated, thereby increasing the temperature of the branch pipe and the fluid in the branch pipe, thereby reducing the heat lost at the branch pipe.

[0023] Another aspect of the present application provides an electric heating pipe system, including the electric heating belt redundant circuit module provided by the present application.

[0024] The technical solution provided by this application can achieve at least one of the following beneficial effects:

[0025] The electric heating belt redundant circuit module and electric heating pipeline system provided in the present application are provided with a curved electric heating belt redundant portion near the extension component, so that the position of the pipeline main body near the extension component is repeatedly heated to compensate for the lost heat, thereby alleviating the serious problem of pipeline heat loss.

[0026] The additional technical features and advantages of the present application will be more clearly explained in the following description, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the specific implementation methods of the present application, the following is a brief introduction to the drawings required for the description of the specific implementation methods. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of an implementation of an electric heating belt redundant circuit module provided in an embodiment of the present application;

[0029] Figure 2 A structural schematic diagram of another implementation of an electric heating belt redundant circuit module provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of a heating line layout method in an electric heating pipeline system provided in an embodiment of the present application.

[0031] Reference numerals:

[0032] 01. First glass tape; 02. Ring portion;

[0033] 03. Second glass tape; 04. Pipeline main body;

[0034] 05. Bolt part; 06. Bracket body;

[0035] 07. Heating zone; 08. First intersection;

[0036] 09. The second intersection; 10. The second branch pipe heating section;

[0037] 11. Branch pipe; 12. First branch pipe heating section;

[0038] 13. Third glass tape. DETAILED DESCRIPTION

[0039] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] like Figures 1 to 3 As shown, one aspect of the present application provides an electric belt redundant circuit module, including a pipe main body 04, an extension and an electric belt redundant part, the extension is in heat transfer contact with the main body, the electric belt redundant part is curved, the electric belt redundant part extends along the outer wall of the pipe main body 04, and the electric belt redundant part is arranged close to the extension in the axial direction of the pipe main body 04.

[0043] Since the space between the conventional metal pipe body 04 and the extensions extending outward from the pipe body 04 cannot be completely filled with insulation material, the metal components of the extensions will transfer the heat on the pipe body 04 to the external environment, causing serious heat loss in the pipeline.

[0044] The electric heating belt redundant circuit module provided in the present application is provided with a curved electric heating belt redundant portion near the extension component, so that the pipeline main body 04 near the extension component is repeatedly heated to compensate for the lost heat, thereby alleviating the serious problem of pipeline heat loss.

[0045] In the embodiment of the present application, preferably, a constant power electric heating system with a redundant circuit and a 6-fold heating ratio is used, and the heating is divided into multiple sections. In each section, 2 star-shaped constant power heating circuits are set, one for use and one for backup, and each star-shaped constant power heating circuit has 3 heating belts, a total of 6 heating belts. There are 2 circuits, one for use and one for backup. When the medium in the pipeline is in a crystallization state due to other reasons, the 2 circuits are opened at the same time to heat and melt the crystals. At this time, the redundant part of the electric heating belt can be located on any heating belt.

[0046] Optionally, the redundant electric heating belt section includes multiple electric heating belt sections 07 arranged in the circumferential direction of the pipeline main body 04. In the embodiment of the present application, the multiple sections are more than two sections. This allows the redundant electric heating belt section to be concentrated in a certain section of the pipeline main body 04 for heat supplementation, so that the heat supplementation effect is obvious and the heat supplementation efficiency is high. Of course, the electric heating belt sections 07 of each section can also be distributed in the axial direction of the pipeline main body 04.

[0047] Optionally, the redundant electric belt section includes S-segmented belts. In this way, not only can the redundant electric belt section have multiple sections of the redundant electric belt section 07, but also the two ends of the redundant electric belt section can be connected to other parts of the redundant electric belt section. Of course, the redundant electric belt section can also include multiple S-segmented belts connected in sequence.

[0048] Optionally, the extension piece and each of the electric heating band segments 07 are arranged on the same circumference of the pipe main body 04. The heat loss of the pipe main body 04 is mainly concentrated at the location of the extension piece. The multiple electric heating band segments 07 are concentrated on one section of the pipe main body 04, which can heat the pipe main body 04 in a concentrated manner and efficiently supplement heat.

[0049] Optionally, the size of the heating band section 07 in the axial direction of the pipe main body 04 is not less than the size of the extension. In this way, the heating band section 07 can cover the length of the extension in the axial direction of the pipe main body 04, so that the heat generated by the heating band section 07 can largely compensate for the heat dissipated by the extension. Of course, the size of the heating band section 07 in the axial direction of the pipe main body 04 is smaller than the size of the extension.

[0050] Optionally, the electric heating tape redundant circuit module provided in the embodiment of the present application also includes a first glass tape 01 and a second glass tape 03 both fixed to the pipe main body 04, the first glass tape 01 and the second glass tape 03 both extend along the circumference of the pipe main body 04, and each of the electric heating tape segments 07 is located between the pipe main body 04 and each of the glass tapes. In this way, each electric heating tape segment 07 can better fit with the pipe main body 04, thereby supplementing the heat of the pipe main body 04. In the embodiment of the present application, preferably, in addition to using the first glass tape 01 and the second glass tape 03 to fix the electric heating tape segment 07, an aluminum tape is also used to fix the pipe main body 04 to the electric heating tape segment 07.

[0051] Optionally, the extension member includes a pipe support, the pipe support includes a support body 06, a collar portion 02 and a bolt portion 05, the collar portion 02 is sleeved on the pipe body 04, the collar portion 02 is fixed to the support body 06, the bolt portion 05 is fixed to the collar portion 02, and the bolt portion 05 is located between two adjacent electric heating band sections 07 in the circumferential direction of the pipe body 04. This allows the electric heating band section 07 to be closer to the bolt portion 05 and other structural arrangements of the extension member, thereby intensively, directly and quickly compensating for the heat dissipated by the extension member, thereby reducing the adverse effects of the heat dissipation of the extension member. In the embodiment of the present application, the collar portion 02 includes a lower half and an upper half, a part of the bolt portion 05 is fixed to the lower half of the collar portion 02, and the other part of the bolt portion 05 is fixed to the upper half of the collar portion 02. The lower half of the collar portion 02 is fixedly connected to the bracket main body 06, the pipe main body 04 is placed in the lower half of the collar portion 02, the upper half of the collar portion 02 is sleeved on the pipe main body 04, and then the two parts of the bolt portion 05 are connected by bolts, thereby achieving the purpose of connecting the lower half and the upper half of the collar portion 02.

[0052] Optionally, in the axial direction of the pipe body 04, the first glass tape 01 is located on one side of the bolt part 05, and the second glass tape 03 is located on the other side of the bolt part 05. The first glass tape 01 and the second glass tape 03 intersect to form a first intersection 08 and a second intersection 09. In the circumferential direction of the pipe body 04, the first intersection 08 is located on one side of the bolt part 05, and the second intersection 09 is located on the other side of the bolt part 05. In other words, the first glass tape 01 and the second glass tape 03 are intersected on both sides of the bolt part 05, thereby increasing the tension of the first glass tape 01 and the second glass tape 03, so that each electric heating band section 07 can be more closely attached to the pipe body 04, thereby optimizing the heat supplement effect.

[0053] Optionally, the extension portion includes a branch pipe 11, and the redundant electric heating belt portion further includes a first branch pipe heating supplement section 12 and a second branch pipe heating supplement section 10, the first branch pipe heating supplement section 12, the second branch pipe heating supplement section 10 and each electric heating belt section 07 are connected in sequence, the first branch pipe heating supplement section 12 and the second branch pipe heating supplement section 10 are both in heat exchange contact with the branch pipe 11, and the first branch pipe heating supplement section 12 and the second branch pipe heating supplement section 10 are located on opposite sides of the branch pipe 11 in the radial direction of the branch pipe 11. Since the branch pipe 11 is connected to the pipeline main body 04, the fluid in the pipeline main body 04 will flow into the branch pipe 11, and the heat dissipated by the branch pipe 11 may be greater than that of other parts of the extension portion. The first branch pipe heating supplement section 12 and the second branch pipe heating supplement section 10 are arranged on both sides of the branch pipe 11, so that the branch pipe 11 and the fluid in the branch pipe 11 can be heated, and the temperature of the branch pipe 11 and the fluid in the branch pipe 11 can be increased, thereby reducing the heat dissipated at the branch pipe 11. In the embodiment of the present application, preferably, the first branch pipe heating supplement section 12 and the second branch pipe heating supplement section 10 are both fixed on the branch pipe 11 by winding with a third glass tape 13 .

[0054] Another aspect of the present application provides an electric heating pipe system, including the electric heating belt redundant circuit module provided in the embodiment of the present application.

[0055] The electric heating belt redundant circuit module provided in the present application is provided with a curved electric heating belt redundant portion near the extension component, so that the pipeline main body 04 near the extension component is repeatedly heated to compensate for the lost heat, thereby alleviating the serious problem of pipeline heat loss.

[0056] In the embodiment of the present application, when a dual-circuit constant power heating system with redundancy is designed, two star-shaped constant power heating circuits can be set, one for use and one for backup, with three heating cables for each star-shaped constant power heating circuit, for a total of six heating cables. Two circuits, one for use and one for backup, when the medium in the pipeline is in a crystallization state due to other reasons, the two circuits are opened at the same time to heat and melt the crystals. According to the thermal characteristics, usually the electric heating tapes for pipelines are arranged within 180° below the horizontal line of the pipeline. At the same time, the constant power heating tapes should not cross or overlap. Therefore, during construction, it is necessary to ensure that the safety distance between each heating tape meets the requirements without crossing, and to set compensation margins at each pipe support, valve, flange, and instrument. It is necessary to meet the thermal characteristics to ensure that heat energy is efficiently transferred to the pipeline and the medium, and the heating tape must achieve three-phase balance. It is necessary to reduce the number of intermediate joints and facilitate the laying of the heating tape. To ensure the construction quality of the electric heating system, it is necessary to control the quality of the heating tape installation, wiring, and installation of other components of the heating system. After the electric heating system is installed, a simulation experiment should be carried out on its control system to verify that the logical function of its control system meets the design requirements.

[0057] like Figure 3 As shown, facing the starting point of the pipeline, the left starting point of the horizontal center line of the pipeline is coded 1 at an interval of 15° counterclockwise, and coded 2, 3, 4, 5 and 6 at an interval of 30° counterclockwise. Normal circuit: No. 1, 3, 5 are heating cable 001L1, heating cable 001L2 and heating cable 001L3 of circuit 001 respectively; backup circuit: No. 2, 4, 6 are heating cable 002L3, heating cable 002L2 and heating cable 002L1 of circuit 002 respectively.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Redundant circuit module of electric heating belt, characterized in that: The utility model comprises a pipe main body, an extension part and a redundant electric belt part, wherein the extension part is in heat transfer contact with the main body, the redundant electric belt part is curved, the redundant electric belt part extends along the outer wall of the pipe main body, and the redundant electric belt part is arranged close to the extension part in the axial direction of the pipe main body.

2. The redundant circuit module of the electric heating belt according to claim 1, characterized in that: The redundant electric heating belt portion includes a plurality of electric heating belt segments arranged in a circumferential direction of the duct main body portion.

3. The redundant circuit module of the electric heating belt according to claim 2, characterized in that: The redundant electric heating belt section includes S sections of heating belts.

4. The redundant circuit module of the electric heating belt according to claim 2, characterized in that: The extension piece and each of the electric heating belt segments are arranged on the same circumference of the pipeline main body.

5. The redundant circuit module of the electric heating belt according to claim 4, characterized in that: In the axial direction of the pipe main body, the size of the electric heating belt section is not less than the size of the extension piece.

6. The redundant circuit module of the electric heating belt according to claim 5, characterized in that: It also includes a first glass tape and a second glass tape both fixed to the pipe main body, the first glass tape and the second glass tape both extend along the circumference of the pipe main body, and each of the electric heating tape segments is located between the pipe main body and each of the glass tapes.

7. The redundant circuit module of the electric heating belt according to claim 6, characterized in that: The extension part includes a pipe support, which includes a support body, a collar and a bolt. The collar is sleeved on the pipe body, the collar is fixed to the support body, the bolt is fixed to the collar, and the bolt is located between two adjacent electric heating belt sections in the circumferential direction of the pipe body.

8. The redundant circuit module of the electric heating belt according to claim 7, characterized in that: In the axial direction of the pipe main body, the first glass tape is located on one side of the bolt part, and the second glass tape is located on the other side of the bolt part. The first glass tape and the second glass tape intersect to form a first intersection point and a second intersection point. In the circumferential direction of the pipe main body, the first intersection point is located on one side of the bolt part, and the second intersection point is located on the other side of the bolt part.

9. The redundant circuit module of the electric heating belt according to any one of claims 6 to 8, characterized in that: The extended portion includes a branch pipe, and the electric heating belt redundant portion also includes a first branch pipe heating supplement section and a second branch pipe heating supplement section. The first branch pipe heating supplement section, the second branch pipe heating supplement section and each of the electric heating belt sections are connected in sequence. The first branch pipe heating supplement section and the second branch pipe heating supplement section are both in heat exchange contact with the branch pipe, and in the radial direction of the branch pipe, the first branch pipe heating supplement section and the second branch pipe heating supplement section are located on opposite sides of the branch pipe.

10. Electric heating pipeline system, characterized in that: It comprises the redundant circuit module of the electric heating belt as claimed in any one of claims 1 to 9.

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