CN211457387U - Drag chain type electromagnetic induction heater and heating system - Google Patents
Drag chain type electromagnetic induction heater and heating system Download PDFInfo
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- CN211457387U CN211457387U CN201922452058.0U CN201922452058U CN211457387U CN 211457387 U CN211457387 U CN 211457387U CN 201922452058 U CN201922452058 U CN 201922452058U CN 211457387 U CN211457387 U CN 211457387U
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Abstract
The utility model discloses a tow chain formula electromagnetic induction heater and heating system belongs to pipeline construction technical field. The heater comprises a heating soft belt and an electric connector; the heating soft belt comprises a drag chain and a cable arranged in the drag chain, and the electric connectors are respectively arranged at two ends of the cable; the electric connector comprises an opening and closing mechanism and a power connector socket, and when the opening and closing mechanism is closed, the cables are butted to form a spiral heating ring. The electromagnetic induction heater provided by the embodiment of the utility model adopts the drag chain type heating soft belt, and the structure of the drag chain type heating soft belt is regular, so that the heating soft belt can be tightly attached to the outer wall of the steel pipe, and the abrasion deformation of the heating belt is avoided; in addition, when the drag chain type heating soft belt is installed, the transmission installation on the outer wall of the pipeline can be realized, so that the heating soft belt and the welding opening are kept in the same bilateral symmetry, the heating effect is ensured, and the heating efficiency is improved.
Description
Technical Field
The utility model relates to a pipeline construction technical field, in particular to be used for orificial tow chain electromagnetic induction heater of pipeline and heating system.
Background
In the welding construction of long oil and gas pipelines, the preheating of the pipeline openings is an important process before the pipelines are welded.
At present, the electromagnetic induction mode is generally adopted in China to preheat the welding port of the pipeline. For example, patent CN101868076A discloses a soft-band electromagnetic induction heater comprising a heating soft band and an electrical connector. The heating soft belt is made by wrapping high-temperature resistant insulating fiber and high-temperature flame retardant cloth outside a cable, the two ends of the heating soft belt are provided with specially-made electric connectors, the opening and closing mechanism of the electric connectors enables the cable to be in butt joint to form a spiral heating ring, and power output current is communicated with the two ends of the spiral through a connector socket on the electric connectors, so that electromagnetic induction is generated, and a pipe orifice is heated.
However, preheating the pipe orifice with the above heater has at least the following problems:
because the structure of flexible heating belt is irregular, in use often with steel pipe outer wall laminating not tight, the deformation of wearing and tearing easily. And as the diameter of the steel pipe is increased (the diameter of the middle and Russian line reaches D1422mm), the diameter of the pipeline induction heater is also increased, and the volume and the weight of the heater are also increased remarkably, so that when the heater is installed manually, a soft belt is difficult to penetrate through the top of the pipeline and keeps consistent with the position of a welded junction, and the heating effect and the construction efficiency are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tow chain formula electromagnetic induction heater and heating system can solve above-mentioned technical problem.
Specifically, the method comprises the following technical scheme:
in a first aspect, a towline type electromagnetic induction heater for a pipe orifice is provided, which comprises a heating soft belt and an electric connector;
the heating soft belt comprises a drag chain and a cable arranged in the drag chain;
the electric connector comprises an opening and closing mechanism and a power connector socket, when the opening and closing mechanism is closed, the cables are in butt joint to form a spiral heating ring, and the power connector socket is arranged at two ends of the spiral heating ring respectively.
In one possible design, the tow chain comprises a plurality of tow chain units rotatably connected in turn;
the drag chain unit comprises an upper cover plate, a lower cover plate and two chain plates, the two chain plates are respectively arranged on two sides of the upper cover plate and the lower cover plate, and the upper cover plate, the lower cover plate and the two chain plates are enclosed into a drag chain;
the cable passes through the drag chain.
In one possible design, the link plates of two adjacent drag chain units are connected through a pin shaft.
In one possible design, the tow chain unit further comprises at least one bulkhead;
the at least one partition plate is arranged between the upper cover plate and the lower cover plate and divides the towline chamber into at least two compartments;
the cables are disposed in each of the compartments.
In one possible design, the number of partitions is 3-10.
In one possible design, the materials of the upper cover plate, the lower cover plate, the chain plate and the partition plate are all reinforced nylon.
In one possible design, the electrical connector further comprises a fixed handle.
In one possible design, a movable handle is provided on the opening and closing mechanism.
A second aspect provides a heating system comprising any of the drag chain type electromagnetic induction heaters mentioned in the first aspect, a conduit and a power supply;
the towline type electromagnetic induction heater is fixed on the pipe orifice of the pipeline through the opening and closing mechanism of the electric connector, and the power supply is connected with the electric connector and the power connector socket;
wherein, the heating soft belt is attached to the outer wall of the pipeline welding port.
In one possible design, the power supply is a high frequency power supply or an intermediate frequency power supply.
The embodiment of the utility model provides a technical scheme's beneficial effect is:
the electromagnetic induction heater provided by the embodiment of the utility model adopts the drag chain type heating soft belt, and the structure of the drag chain type heating soft belt is regular, so that the heating soft belt can be tightly attached to the outer wall of the steel pipe, and the abrasion deformation of the heating belt is avoided; in addition, when the drag chain type heating soft belt is installed, the transmission installation on the outer wall of the pipeline can be realized, so that the heating soft belt and the welding opening are in bilateral symmetry and keep consistent, the heating effect is ensured, and the heating efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a side view of a drag chain type electromagnetic induction heater according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a heating soft belt according to an embodiment of the present invention;
fig. 3 is a front view of a heating soft belt according to an embodiment of the present invention.
The reference numerals in the drawings denote:
100. heating the soft belt;
101. a drag chain; 1011. an upper cover plate; 1012. a lower cover plate; 1013. a chain plate; 1014. a partition plate; 1015. a pin shaft;
102. a cable;
200. an electrical connector; 201. an opening and closing mechanism; 2011. a movable handle; 202. a power connector socket; 203. fixing a handle; 204. a male connector; 205. female joint
300. A pipeline.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In a first aspect, an embodiment of the present invention provides a towline type electromagnetic induction heater, as shown in fig. 1, the towline type electromagnetic induction heater includes a heating soft belt 100 and an electrical connector 200;
the heating soft belt 100 comprises a drag chain 101 and a cable 102 arranged in the drag chain 101;
the electrical connector 200 includes an opening and closing mechanism 201 and a power connector socket 202, when the opening and closing mechanism 201 is closed, the cables 102 are butted to form a spiral heating coil, and the power connector sockets 202 are respectively arranged at two ends of the spiral heating coil.
Wherein the electrical connector 200 may be an electrical connector conventionally used in the art, the electrical connector 200 includes a male connector 204 and a female connector 205, the male connector 204 is connected to a first end of the soft heating band 100, and the female connector 205 is connected to the other end of the soft heating band 100. When the opening and closing mechanism 201 connects the male connector 204 and the female connector 205, the cables 102 are butted to form a spiral heating coil.
Additionally, it will be appreciated that the mated cable 102 may preferably conform to the outer wall at the weld of the conduit.
When the heating device is applied, the heating soft belt 100 is placed at the pipe orifice of a pipeline to be heated, the heating soft belt 100 is connected to the pipe orifice of the pipeline in a fitting manner through the opening and closing mechanism 201, and the cables 102 are butted to form a spiral heating ring; then, the power supply is connected through the power connector socket 202, so that electromagnetic induction is generated in the spiral heating coil, and the pipe orifice of the pipeline is heated.
The electromagnetic induction heater provided by the embodiment of the utility model adopts the drag chain type heating soft belt, and the structure of the drag chain type heating soft belt is regular, so that the heating soft belt can be tightly attached to the outer wall of the steel pipe, and the abrasion deformation of the heating belt is avoided; in addition, when the drag chain type heating soft belt is installed, the transmission installation on the outer wall of the pipeline can be realized, so that the positions of the heating soft belt and the welding opening are kept consistent, the heating effect is ensured by bilateral symmetry, and meanwhile, the heating efficiency is improved.
In the above-described drag chain type electromagnetic induction heater, the cable 102 is threaded into the drag chain 101 to form the drag chain type heating soft belt 100. The drag chain 101 protects the cable 102 from wear. The drag chain 101 can be a combined structure, the width of the drag chain 101 can be selected according to the preheating width of the pipe orifice of the pipeline, and the length can be processed into chain belts with different lengths according to the circumferences of different pipelines.
Illustratively, as shown in fig. 1, the drag chain 101 may include a plurality of drag chain units rotatably connected in turn; the drag chain unit comprises an upper cover plate 1011, a lower cover plate 1012 and two chain plates 1013, wherein the two chain plates 1013 are respectively arranged at two sides of the upper cover plate 1011 and the lower cover plate 1012, and the upper cover plate 1011, the lower cover plate 1012 and the two chain plates 1013 are enclosed to form a drag chain; the cable 102 passes between the chains.
The plurality of drag chain units connected in sequence enable the plurality of drag chains to be communicated in sequence, and the cable 102 is inserted into the drag chain, so that the whole length of the cable drag chain can be formed. Because the tow chain unit is regular box type structure, the cable tow chain that forms also has regular structure, and this regular structure has not only avoided the wearing and tearing of heating band to warp, still makes the soft area of heating can closely laminate with the steel pipe outer wall. Meanwhile, the regular structure can realize transmission and installation on the outer wall of the pipeline, so that the heating soft belt and the position of a welding opening are kept consistent, the heating effect is ensured, and the heating efficiency is improved.
The embodiment of the utility model provides a do not have strict limitation to the connected mode between a plurality of tow chain units, can realize rotatable coupling between the tow chain unit can. For example, the link plates 1013 of two adjacent drag chain units are connected by the pin 1015.
Specifically, as shown in fig. 2 and 3, the link plate 1013 has a plate-like structure, and the link plate 1013 has connecting holes, and the connecting holes of the left and right link plates 1013 of two adjacent drag chain units are aligned, respectively, and can be connected by the pin 1015. So set up, can make the rotation between the tow chain unit more nimble. Meanwhile, the connecting by the pin shaft 1015 also facilitates the disassembly of the drag chain unit of the drag chain 101, so as to be suitable for pipelines regardless of pipe diameters.
In the above-described drag chain type electromagnetic induction heater, the spiral heating coil formed by the cable 102 may be 1 turn or may be a plurality of turns. In consideration of the heating efficiency of the heater, it is preferable that the spiral heating coil is made to have a plurality of turns, and for example, it may be made to have 2 turns, 3 turns, 4 turns, 5 turns, 6 turns, 7 turns, 8 turns, and so on.
When the helical heating coil comprises multiple turns, multiple cables 102 may be disposed in the drag chain compartment. To provide for more orderly ordering of the cables 102 among the drag chains, in one possible embodiment, as shown in FIG. 2, the drag chain unit may further include at least one bulkhead 1014; at least one partition 1014 is disposed between the upper and lower cover plates 1011, 1012 and divides the towline compartment into at least two compartments; each compartment has a cable 102 disposed therein.
Specifically, the number of baffles 1014 can be set to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, etc., depending on the number of helical heating coils required.
It will be appreciated that when 2 turns of helical heating coils are required, the tow chain unit may be arranged to include 1 bulkhead 1014; when 3 turns of spiral heating coils are required, the drag chain unit can be arranged to comprise 2 partition plates 1014; when 4 turns of spiral heating coils are required, the drag chain unit can be arranged to comprise 3 partition plates 1014; when 5 turns of the helical heating coil are required, the tow chain unit may be arranged to include 4 bulkheads 1014 (as shown in FIG. 2).
The embodiment of the utility model provides an in, electromagnetic induction heater coil is by cyclic annular helix coiling to place in the tow chain for coil magnetic force line is concentrated and is acted on the pipeline weld bond, and it is big to have overcome the soft band coil of no breakpoint plane coiling self calorific capacity, and the shortcoming that the thermal efficiency reduces.
In practical application, the preheating temperature to the pipe orifice of the pipeline can reach 100-150 ℃, and based on this, the embodiment of the utility model provides an adopted material of drag chain 101 need have certain temperature resistance. Illustratively, the materials of the upper cover plate 1011, the lower cover plate 1012, the link plate 1013, and the partition plate 1014 may all be selected to be reinforced nylon. The reinforced nylon has the advantages of light weight, high strength, abrasion resistance and excellent temperature resistance, and can meet the use requirements of high and cold (such as minus 40 ℃) or high (such as above 50 ℃) ambient temperatures.
In addition, among the prior art, to the requirement of preheating of the Russian line D1422mm pipeline crater, still developed electronic self-opening and closing frame-type induction heater, nevertheless this heater weight is big, need supporting special crane to install, dismantle in engineering application, has increaseed and has preheated the cost, has influenced and has preheated efficiency. Compared with the prior art, the weight of the drag chain type electromagnetic induction heater for the D1422mm pipeline is about 26kg, the installation can be disassembled manually, matched hoisting equipment is not needed, the use cost is reduced, the defects of the prior inductor in the welding preheating construction of the large-caliber long oil and gas pipeline are overcome, the requirement of the high-efficiency welding construction of the engineering is met, and the manual portable operation of the heating of the large-caliber pipeline welded junction is realized.
In the above-mentioned drag chain type electromagnetic induction heater, the two ends of the cable drag chain are connected with the special electric connector 200, so that the cable 102 forms a spiral heating coil, and the power output current is connected with the power connector sockets 202 arranged at the two ends of the spiral. In order to facilitate installation of the heater, as shown in fig. 3, the electrical connector 200 may further include a fixing handle 203, and during installation, an operator may precisely wrap the soft heating band 100 around the weld of the pipeline by means of the fixing handle 203.
In the above-mentioned drag chain type electromagnetic induction heater, the opening and closing mechanism 201 is used to connect or disconnect the male connector 204 and the female connector 205 of the electrical connection 200, and a movable handle 2011 may be provided on the opening and closing mechanism 201 to facilitate the connection or disconnection operation. When the folding mechanism is used, an operator can realize connection or disconnection of the opening and closing mechanism 201 by pulling the movable handle 2011.
For example, the opening and closing mechanism 201 may include a cam translation mechanism combined with the movable handle 2011, and the opening and closing mechanism 201 may tighten the drag chain by the cam translation mechanism, so that the drag chain is tightly attached to the outer wall of the steel pipe.
More specifically, the electrical connector 200 used in the embodiment of the present invention may be the electrical connector referred to in patent CN 202261891U.
In a second aspect, embodiments of the present invention provide a heating system for a pipe orifice, as shown in fig. 1, the heating system comprising any one of the drag chain type electromagnetic induction heaters according to the first aspect, a pipe 300 and a power supply;
the drag chain type electromagnetic induction heater is fixed on the pipe orifice of the pipeline 300 through the opening and closing mechanism 201 of the electric connector 200, and the power supply is connected with the power supply connector socket 202 of the electric connector 200;
wherein the soft heating tape 100 is attached to the outer wall of the pipe 300 at the welding site.
The heating system provided by the embodiment of the utility model adopts the drag chain type heating soft belt, and the structure of the drag chain type heating soft belt is regular, so that the heating soft belt can be tightly attached to the outer wall of the steel pipe, and the abrasion deformation of the heating belt is avoided; in addition, when the drag chain type heating soft belt is installed, the transmission installation on the outer wall of the pipeline can be realized, so that the positions of the heating soft belt and the welding opening are kept consistent, the heating effect is ensured by bilateral symmetry, and meanwhile, the heating efficiency is improved.
In the above-described heating system, the power supply used is a high-frequency power supply or a medium-frequency power supply, and accordingly, the cable 102 used may be a high-frequency cable or a medium-frequency cable.
The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A drag chain type electromagnetic induction heater comprises a heating soft belt (100) and an electric connector (200); it is characterized in that the preparation method is characterized in that,
the heating soft belt (100) comprises a drag chain (101) and a cable (102) arranged in the drag chain (101);
electric connector (200) are including mechanism (201) and power connection socket (202) open and shut, when mechanism (201) closed, cable (102) butt joint forms the helix heating circle, power connection socket (202) set up respectively the both ends of helix heating circle.
2. The drag chain type electromagnetic induction heater according to claim 1, wherein the drag chain (101) comprises a plurality of drag chain units rotatably connected in sequence;
the drag chain unit comprises an upper cover plate (1011), a lower cover plate (1012) and two chain plates (1013), wherein the two chain plates (1013) are respectively arranged at two sides of the upper cover plate (1011) and the lower cover plate (1012), and the upper cover plate (1011), the lower cover plate (1012) and the two chain plates (1013) enclose into a drag chain room;
the cable (102) passes through the towline.
3. The drag chain type electromagnetic induction heater according to claim 2, characterized in that the link plates (1013) of two adjacent drag chain units are connected by a pin (1015).
4. The drag chain type electromagnetic induction heater according to claim 2, wherein said drag chain unit further comprises at least one baffle (1014);
the at least one partition (1014) is disposed between the upper cover plate (1011) and the lower cover plate (1012) and divides the towline compartment into at least two compartments;
the cables (102) are disposed in each of the compartments.
5. The drag chain type electromagnetic induction heater according to claim 4, wherein the number of the partition plates (1014) is 3-10.
6. The drag chain type electromagnetic induction heater according to claim 4, characterized in that the materials of the upper cover plate (1011), the lower cover plate (1012), the link plate (1013) and the partition plate (1014) are all reinforced nylon.
7. The drag chain type electromagnetic induction heater according to claim 1, wherein the electrical connector (200) further comprises a fixed handle (203).
8. The drag chain type electromagnetic induction heater according to claim 1, characterized in that the opening and closing mechanism (201) is provided with a movable handle (2011).
9. A heating system, characterized in that it comprises a towline electromagnetic induction heater according to any one of claims 1-8, a conduit (300) and a power supply;
the towline type electromagnetic induction heater is fixed on a pipe orifice of the pipeline (300) through the opening and closing mechanism (201) of the electric connector (200), and the power supply is connected with the power supply connector socket (202) of the electric connector (200);
wherein the heating soft belt (100) is attached to the outer wall of the welding port of the pipeline (300).
10. The heating system of claim 9, wherein the power source is a high frequency power source or an intermediate frequency power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922452058.0U CN211457387U (en) | 2019-12-30 | 2019-12-30 | Drag chain type electromagnetic induction heater and heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922452058.0U CN211457387U (en) | 2019-12-30 | 2019-12-30 | Drag chain type electromagnetic induction heater and heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211457387U true CN211457387U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922452058.0U Active CN211457387U (en) | 2019-12-30 | 2019-12-30 | Drag chain type electromagnetic induction heater and heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211457387U (en) |
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2019
- 2019-12-30 CN CN201922452058.0U patent/CN211457387U/en active Active
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