Adjustable induction heating device

Abstract

The utility model relates to an adjustable induction heating device, which belongs to the technical field of induction coils, and comprises a connecting plate, a water pipe and an induction coil, the water pipe is arranged on the connecting plate, the water pipe is connected with the induction coil, the induction coil comprises a main coil and an auxiliary coil, the main coil and the auxiliary coil are arranged side by side, the water pipe is connected with the main coil, and the auxiliary coil is connected with the connecting plate. The auxiliary ring is detachably and fixedly connected with the main ring; the multiple auxiliary rings are arranged on the same side of the main ring side by side in the axis direction of the main ring, and every two adjacent auxiliary rings are detachably and fixedly connected. Water outlet holes are formed in the inner side wall of the main ring, and a first water inlet connector is connected to the main ring; according to the induction coil structure, a traditional induction coil structure is optimized, the induction coil can be detached and replaced, flexibility is high, the trouble of manufacturing and assembling a coil is omitted, the induction coil structure is simple in division of labor, the induction coil structure can be suitable for pipe fittings with different wall thicknesses, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to an adjustable induction heating device, belonging to the technical field of induction coils. Background Art

[0002] With economic and technological development, power plants are placing increasingly stringent demands on pipeline design, leading to higher requirements for pipe fittings used for pipe bends. Compared to elbows, pipe bends offer advantages such as controllable dimensions, reduced weld count, and ease of later in-service inspection. During pipe bending, medium-frequency induction heating is applied to the pipes via induction coils.

[0003] Chinese invention patent publication number CN115835439A discloses an energy-saving induction heating device, including an induction coil, wherein a first cooling tube is inserted into the induction coil, and both ends of the first cooling tube extend to the outside of the induction coil, and both ends of the first cooling tube are connected to a first cooling joint. The induction coil is provided with a plurality of circumferentially distributed second cooling joints, and the inner side wall of the induction coil is circumferentially provided with a plurality of heat dissipation holes; the vertical cross-sectional shape at the center of the induction coil is a right-angled trapezoid. The energy-saving induction heating device increases the cross-sectional area by setting the cross-section of the induction coil to a right-angled trapezoid, thereby improving the strength and preventing the induction coil from deflecting in a high-temperature environment; it avoids premature cooling of the bent pipe before reaching the bending temperature, shortens the heating time of the bent pipe, improves the heating efficiency of the bent pipe, and saves electricity. However, in the prior art, the induction coil is generally made of a copper square tube or a copper plate. The induction coil made of the copper square tube can generally only be used for thin-walled water-cooling pipes. For thick-walled pipes, a red band needs to be added to the coil. In this case, a copper plate assembled coil or a copper square tube assembled coil is used instead. However, the coil can still only be applied to elbows with a certain range of wall thickness, that is, the scope of application is limited. If a different wall thickness range is encountered later, the coil needs to be remade.

[0004] Therefore, there is a need for an adjustable induction heating device to expand the scope of application. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, to provide an adjustable induction heating device with a wider scope of application.

[0006] The technical solution adopted by the present invention to solve the above problems is: an adjustable induction heating device, comprising a connecting plate, a water pipe and an induction coil, wherein the water pipe is arranged on the connecting plate and connected to the induction coil, the induction coil comprising a main coil and a secondary coil, the main coil and the secondary coil being arranged side by side, the water pipe being connected to the main coil, and the secondary coil being detachably fixedly connected to the main coil;

[0007] There are multiple secondary rings, which are arranged side by side on the same side of the main ring along the axis of the main ring, and two adjacent secondary rings are detachably fixedly connected;

[0008] A water outlet is provided on the inner side wall of the main ring, and a first water inlet joint is connected to the main ring;

[0009] The secondary ring is connected to a second water inlet joint and a water outlet joint. The number of the second water inlet joints is equal to the number of the water outlet joints. A single second water inlet joint and a single water outlet joint form a group.

[0010] Preferably, the second water inlet connector and the water outlet connector are both provided in plurality, and the plurality of second water inlet connectors correspond one-to-one to the plurality of water outlet connectors.

[0011] Preferably, connecting strips are detachably and fixedly connected between the main ring and the secondary ring close to the main ring, as well as between two adjacent secondary rings.

[0012] Preferably, a cooling pipe is provided on the connecting plate.

[0013] Preferably, the main ring and the secondary ring are both made of copper.

[0014] Preferably, there are multiple water outlet holes, which are distributed circumferentially.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The traditional induction coil structure is optimized to make it removable and replaceable, which is highly flexible and saves the trouble of manufacturing and assembling the coil. The induction coil structure has a simple division of labor and can be applied to pipes with different wall thicknesses, thus expanding its scope of application.

[0017] 2. For elbows with similar diameters but different wall thicknesses, the steps of manufacturing multiple different induction coils can be eliminated by reducing or adding secondary coils, thus reducing production costs and improving efficiency.

[0018] 3. It is relatively simple to disassemble and install, which is convenient for maintenance and prolongs the service life of the induction coil;

[0019] 4. The induction coil is set into a main coil and a secondary coil structure to ensure uniform heating, which can effectively avoid material deformation or appearance defects caused by uneven temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of an adjustable induction heating device of the present utility model;

[0021] Figure 2 for Figure 1 AA direction cross-sectional view;

[0022] Figure 3 The structural diagram of the main circle;

[0023] Figure 4 This is a structural diagram of the secondary circle.

[0024] in:

[0025] Connecting plate 1, water pipe 2, induction coil 3;

[0026] Main ring 31 , secondary ring 32 , water outlet 33 , first water inlet joint 34 , second water inlet joint 35 , water outlet joint 36 , connecting strip 37 . DETAILED DESCRIPTION

[0027] like Figure 1-4 As shown, an adjustable induction heating device in this embodiment includes a connecting plate 1, a water pipe 2 and an induction coil 3. The water pipe 2 is arranged on the connecting plate 1 and connected to the induction coil 3.

[0028] The induction coil 3 includes a main coil 31 and a secondary coil 32, which are arranged side by side. The water pipe 2 is connected to the main coil 31, and the secondary coil 32 is detachably fixedly connected to the main coil 31.

[0029] There are multiple secondary rings 32, which are arranged side by side on the same side of the main ring 31 along the axis of the main ring 31, and two adjacent secondary rings 32 are detachably fixedly connected;

[0030] A plurality of water outlet holes 33 are provided on the inner side wall of the main circle 31, and a plurality of first water inlet joints 34 are connected to the outer side wall of the main circle 31;

[0031] A second water inlet connector 35 and a water outlet connector 36 are connected to the outer wall of the secondary ring 32. The number of the second water inlet connectors 35 is equal to the number of the water outlet connectors 36. A single second water inlet connector 35 and a single water outlet connector 36 form a group. Multiple second water inlet connectors 35 and multiple water outlet connectors 36 are provided, and the multiple second water inlet connectors 35 correspond to the multiple water outlet connectors 36 one-to-one.

[0032] The main ring 31 and the secondary ring 32 close to the main ring 31 as well as two adjacent secondary rings 32 are detachably and fixedly connected with connecting strips 37;

[0033] The connecting plate 1 is provided with a cooling pipe (not shown in the drawings), and cooling water is passed into the cooling pipe to cool the connecting plate 1;

[0034] The main ring 31 and the secondary ring 32 are both made of copper;

[0035] During operation, the pipe passes through the main ring 31 and each secondary ring 32 in sequence, and the main ring 31 and each secondary ring 32 heat the pipe simultaneously. Water is respectively supplied to the main ring 31 from the water pipe 2 and the first water inlet joint 34. The water in the main ring 31 is then discharged from the water outlet 33 and acts on the pipe, thereby cooling the pipe and the main ring 31. In addition, water is also supplied to the secondary ring 32 from the second water inlet joint 35. The water in the secondary ring 32 is then discharged from the corresponding water outlet joint 36 to cool the secondary ring 32. The temperature of the bent pipe is measured, and when the temperature reaches the bending temperature, bending begins. Here, the number of secondary rings 32 is selected according to the wall thickness of the pipe, so that it is suitable for pipes of different wall thicknesses, expanding the scope of application.

[0036] In summary, the adjustable induction heating device has the following characteristics:

[0037] 1. The structure of the traditional induction coil 3 is optimized, so that the induction coil 3 can be disassembled and replaced, which is flexible and saves the trouble of manufacturing and assembling the coil. The induction coil 3 has a simple structure and can be applied to pipes with different wall thicknesses, thus expanding its scope of application.

[0038] 2. For elbows with similar diameters but different wall thicknesses, the step of manufacturing multiple different induction coils 3 can be omitted by reducing or adding secondary coils 32, thereby reducing production costs and improving efficiency.

[0039] 3. It is relatively simple to disassemble and install, which is convenient for maintenance and prolongs the service life of the induction coil 3;

[0040] 4. The induction coil 3 is configured as a structure of a main coil 31 and a secondary coil 32, so that heating is uniform and material deformation or appearance defects caused by uneven temperature can be effectively avoided.

[0041] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. An adjustable induction heating device, comprising a connecting plate (1), a water pipe (2) and an induction coil (3), wherein the water pipe (2) is arranged on the connecting plate (1), and the water pipe (2) is connected to the induction coil (3), characterized in that: The induction coil (3) comprises a main coil (31) and a secondary coil (32), the main coil (31) and the secondary coil (32) are arranged side by side, the water pipe (2) is connected to the main coil (31), and the secondary coil (32) is detachably fixedly connected to the main coil (31); The auxiliary rings (32) are provided in plurality, and the plurality of auxiliary rings (32) are arranged side by side on the same side of the main ring (31) along the axis direction of the main ring (31), and two adjacent auxiliary rings (32) are detachably fixedly connected; A water outlet hole (33) is provided on the inner side wall of the main ring (31), and a first water inlet joint (34) is connected to the main ring (31); The secondary ring (32) is connected to a second water inlet joint (35) and a water outlet joint (36). The number of the second water inlet joints (35) is equal to the number of the water outlet joints (36). A single second water inlet joint (35) and a single water outlet joint (36) form a group.

2. The adjustable induction heating device according to claim 1, characterized in that: A plurality of the second water inlet connectors (35) and the water outlet connectors (36) are provided, and the plurality of second water inlet connectors (35) correspond one to one to the plurality of water outlet connectors (36).

3. The adjustable induction heating device according to claim 1, characterized in that: A connecting strip (37) is detachably and fixedly connected between the main ring (31) and the secondary ring (32) adjacent to the main ring (31), as well as between two adjacent secondary rings (32).

4. The adjustable induction heating device according to claim 1, characterized in that: A cooling pipe is provided on the connecting plate (1).

5. The adjustable induction heating device according to claim 1, characterized in that: The main ring (31) and the secondary ring (32) are both made of copper.

6. The adjustable induction heating device according to claim 1, characterized in that: A plurality of water outlet holes (33) are provided, and the plurality of water outlet holes (33) are distributed circumferentially.

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