Induction coil water-cooled electrode in high-temperature and high-pressure airtight chamber

Abstract

The utility model relates to an induction coil water-cooled electrode of a high-temperature and high-pressure airtight chamber. The utility model is suitable for the technical field of high-temperature and high-pressure gas equipment. The technical problem to be solved by the utility model is to provide the induction coil water-cooled electrode of the high-temperature and high-pressure airtight chamber. According to the technical scheme, the electrode comprises a first electrode bar and a second electrode bar, and high-temperature-resistant insulating layers are sprayed on the outer circular surfaces of the first electrode bar and the second electrode bar; the first electrode bar is arranged on the outer side of the airtight chamber and is of a hollow structure with a closed single end, the open end of the first electrode bar is a first water nozzle used for being connected with a power source and a cooling water pipe, and a water through hole is formed in the side wall of the first electrode bar. The second electrode bar is fixed in a mounting hole formed in the side wall of the airtight chamber and is sealed and insulated from the mounting hole; the second electrode bar is of a hollow structure with two through ends, the outer end of the second electrode bar is in threaded connection with the water through hole, the joint is sealed through a first sealing ring, the hollow structures of the first electrode bar and the second electrode bar are communicated, and the inner end of the second electrode bar is a second water nozzle used for being connected with an induction coil in the airtight chamber.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature and high-pressure gas equipment, in particular to an induction coil water-cooled electrode of a high-temperature and high-pressure airtight chamber. Background Art

[0002] Induction coil heating is a convenient and efficient non-contact object heating technology, which is widely used in heating, melting, welding and other processes in daily life and industrial production. When in use, in order to avoid the induction coil temperature being too high due to long power-on time and large current, it is usually supplemented with heat dissipation and cooling measures, such as using fans for air cooling, heat sinks for passive heat dissipation, and water cooling machines to cool the induction coil with water.

[0003] The water-cooled electrode can be powered and water-cooled at the same time, and is an important structure for water cooling of the induction coil. At present, in order for the induction coil to work normally at high temperatures, graphite electrodes are generally used; and in low-pressure sealed environments, ceramic sealed electrodes are mostly used. However, graphite electrodes and ceramic sealed electrodes can only serve as conductors and cannot form a circulating water circuit to cool the induction coil. In addition, the sealing performance of ceramic sealed electrodes is average and cannot adapt well to high-pressure sealed environments.

[0004] In view of this, for high-temperature and high-pressure airtight chambers, it is necessary to propose a water-cooled electrode that can conduct electricity and dissipate heat while meeting the high-pressure sealing requirements. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a water-cooled electrode for an induction coil in a high-temperature and high-pressure airtight chamber, so as to simultaneously meet the requirements of heat dissipation of the induction coil and sealing of the air chamber in a high-temperature and high-pressure environment.

[0006] The technical solution adopted by the utility model is as follows

[0007] An induction coil water-cooled electrode for a high-temperature and high-pressure airtight chamber comprises a first electrode rod and a second electrode rod, the outer circumferential surfaces of both electrodes being sprayed with a high-temperature resistant insulating layer;

[0008] The first electrode rod is arranged outside the airtight chamber and is a hollow structure with a single closed end, the open end of which is a first water nozzle for connecting a power source and a cooling water pipe, and a water hole is opened on the side wall;

[0009] The second electrode rod is fixed in a mounting hole opened on the side wall of the airtight chamber, and is sealed and insulated from the mounting hole; the second electrode rod is a hollow structure with two ends penetrated, an outer end of which is threadedly connected to the water hole, and the connection is sealed by a first sealing ring to realize the hollow structure connection between the first electrode rod and the second electrode rod, and an inner end of which is a second water nozzle for connecting the induction coil inside the airtight chamber.

[0010] Furthermore, the mounting hole is a stepped hole, and the outer wall of the second electrode rod is provided with a circle of convex rings, the convex ring and the rod body outside it form a stepped shaft structure that matches the gap with the stepped hole, the outer wall of the convex ring is provided with a second sealing ring for sealing with the inner wall of the stepped hole, the outer end face and the inner end face of the convex ring are respectively provided with a first insulating sheet and a second insulating sheet, and the inner side of the second insulating sheet is provided with a pressing ring, which matches the inner end thread of the stepped hole, and when the pressing ring is tightened, the second insulating sheet, the convex ring and the first insulating sheet are pressed, thereby fixing the second electrode rod in the mounting hole.

[0011] Furthermore, the water hole is a stepped hole, and the end face of the outer end of the second electrode rod is provided with a first sealing groove for installing a first sealing ring. When the second electrode rod is tightened, the first sealing ring is tightly attached to the step surface of the stepped hole to achieve sealing at the connection between the water hole and the second electrode rod.

[0012] Furthermore, the outer wall of the convex ring is provided with a second sealing groove for installing a second sealing ring.

[0013] The utility model has the following beneficial effects: the electrode provided by the utility model has a simple structure, low processing difficulty, and convenient installation. It can not only quickly and effectively cool the induction coil and extend the service life of the coil, but also has good high-pressure sealing and surface insulation, which helps to improve the working efficiency and stability of the induction coil heating equipment in the high-temperature and high-pressure airtight room. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the installation structure of an embodiment of the utility model.

[0016] Figure numerals: first electrode rod 1, first water nozzle 11, water hole 12, second electrode rod 2, first sealing groove 21, first sealing ring 22, convex ring 23, second sealing groove 24, second sealing ring 25, first insulating sheet 26, second insulating sheet 27, pressure ring 28, second water nozzle 29, airtight chamber 3, stepped hole 31, step surface 311, induction coil 4. DETAILED DESCRIPTION

[0017] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to the following embodiments.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0019] Reference Figure 1 As shown, this embodiment provides an induction coil water-cooled electrode for a high-temperature and high-pressure airtight chamber, which is used for powering on the induction coil, dissipating heat and sealing the air chamber under a high-temperature and high-pressure environment, and includes: a first electrode rod 1 and a second electrode rod 2. The first electrode rod 1 is a hollow structure with a single end closed, and its open end is a first water nozzle 11 for connecting a power source and a cooling water pipe. The second electrode rod 2 is a hollow structure with two ends through, and the inner end is a second water nozzle 29 for connecting the induction coil inside the high-temperature and high-pressure airtight chamber 3. The outer circumferential surfaces of the first electrode rod 1 and the second electrode rod 2 are sprayed with a high-temperature resistant insulating layer.

[0020] The side wall at the bottom end of the first electrode rod 1 is provided with a water hole 12, which is a stepped hole and is threadedly connected to the outer end of the second electrode rod 2, so as to achieve communication between the hollow structures of the first electrode rod 1 and the second electrode rod 2. A first sealing groove 21 is provided on the outer end surface of the second electrode rod 2, and a seal is achieved between the water hole 12 and the first sealing ring 22 in the groove. When the second electrode rod 2 is tightened, the first sealing ring 22 is tightly attached to the step surface of the stepped hole, so as to achieve sealing at the connection between the water hole 12 and the second electrode rod 2.

[0021] The middle outer wall of the second electrode rod 2 is provided with a convex ring 23, and the convex ring 23 and the rod body outside thereof form a stepped shaft structure. The outer wall of the convex ring 23 is provided with a second sealing groove 24 for installing a second sealing ring 25. The outer end face and the inner end face of the convex ring 23 are provided with a first insulating sheet 26 and a second insulating sheet 27 respectively, and the inner side of the second insulating sheet 27 is provided with a hollow pressing ring 28, and the outer wall of the pressing ring 28 has an external thread. The first insulating sheet 26, the convex ring 23, the second insulating sheet 27, and the pressing ring 28 are arranged in sequence with their end faces in contact.

[0022] Reference Figure 2As shown, in actual application, the water-cooled electrode of this embodiment is installed on the side wall of the airtight chamber 3. The side wall of the airtight chamber 3 is provided with an installation hole, which is a stepped hole 31 with a larger inner side and a smaller outer side. During installation, the second electrode rod 2 passes through the stepped hole 31 from the interior and is connected to the water-through hole 12 outside the interior. The stepped shaft structure of the second electrode rod 2 forms a clearance fit with the stepped hole 31. The first insulating sheet 26 is in contact with the end face of the step surface 311 of the step hole 31. The second electrode rod 2 is radially sealed with the wall of the step hole 31 by the second sealing ring 25. The pressing ring 28 is threadedly connected to the inner end of the step hole 31, and the second insulating sheet 27, the convex ring 23, the first insulating sheet 26 and the step surface 311 are pressed tightly in the step hole 31, and finally the second electrode rod 2 is fixed in the step hole 31 to prevent it from loosening or tilting in the step hole 31.

[0023] In actual application, the first water nozzle 11 of the first electrode rod 1 is connected to the external power supply and the cooling water pipe, and the second water nozzle 29 of the second electrode rod 2 is connected to the end of the indoor induction coil 4, which together form a water and electricity circulation path. When working, cooling water enters the induction coil 4 from one of the water-cooled electrodes and flows out through the water-cooled electrode at the other end of the induction coil to achieve circulation cooling.

[0024] The above is only a preferred embodiment of the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water-cooled electrode for an induction coil in a high-temperature and high-pressure airtight chamber, characterized in that: It comprises a first electrode rod (1) and a second electrode rod (2), the outer circumferential surfaces of both of which are sprayed with a high temperature resistant insulating layer; The first electrode rod (1) is arranged outside the airtight chamber (3) and is a hollow structure with a single end closed, the open end of which is a first water nozzle (11) for connecting a power source and a cooling water pipe, and a water hole (12) is provided on its side wall; The second electrode rod (2) is fixed in a mounting hole provided on the side wall of the airtight chamber (3), and is sealed and insulated from the mounting hole; the second electrode rod (2) is a hollow structure with two ends connected, the outer end of which is threadedly connected to the water hole (12), and the connection is sealed by a first sealing ring (22) to achieve communication between the hollow structures of the first electrode rod (1) and the second electrode rod (2), and the inner end of which is a second water nozzle (29) for connecting to the induction coil (4) inside the airtight chamber (3).

2. The water-cooled electrode for the induction coil in a high-temperature and high-pressure airtight chamber according to claim 1, characterized in that: The mounting hole is a stepped hole (31); the outer wall of the second electrode rod (2) is provided with a convex ring (23); the convex ring (23) and the rod body outside the convex ring (23) form a stepped shaft structure that is gap-matched with the stepped hole (31); the outer wall of the convex ring (23) is provided with a second sealing ring (25) for sealing with the inner wall of the stepped hole (31); the outer end surface and the inner end surface of the convex ring (23) are respectively provided with a first insulating sheet (26) and a second insulating sheet (27); the inner side of the second insulating sheet (27) is provided with a pressing ring (28); the pressing ring (28) is matched with the inner end thread of the stepped hole (31); when the pressing ring (28) is tightened, it presses the second insulating sheet (27), the convex ring (23) and the first insulating sheet (26), thereby fixing the second electrode rod (2) in the mounting hole.

3. The water-cooled electrode for induction coil in a high-temperature and high-pressure airtight chamber according to claim 1, characterized in that: The water hole (12) is a stepped hole, and the end surface of the outer end of the second electrode rod (2) is provided with a first sealing groove (21) for mounting a first sealing ring (22). When the second electrode rod (2) is tightened, the first sealing ring (22) is tightly attached to the step surface of the stepped hole, thereby achieving sealing at the connection between the water hole (12) and the second electrode rod (2).

4. The water-cooled electrode for induction coil in a high-temperature and high-pressure airtight chamber according to claim 2, characterized in that: The outer wall of the convex ring (23) is provided with a second sealing groove (24) for mounting a second sealing ring (25).

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