CN103903934A

CN103903934A - Oil cooler used for high-power high-voltage vacuum device

Info

Publication number: CN103903934A
Application number: CN201210575175.6A
Authority: CN
Inventors: 李飞镝; 王民; 宣伟民; 姚列英; 卜明南
Original assignee: Southwestern Institute of Physics
Current assignee: Southwestern Institute of Physics
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2014-07-02
Anticipated expiration: 2032-12-26
Also published as: CN103903934B

Abstract

The invention discloses an oil cooler used for a high-power high-voltage vacuum device, which comprises a side wall (1), a cover plate (2), an oil inlet (3) and an oil outlet (4), an element tube seat (5), a metal spring fastener (6) and a bottom plate (9), wherein the side wall (1) has a hollow cylindrical structure; the bottom plate (9) and the cover plate (2) are disk-shaped; the side wall (1) and the bottom plate (9) are bonded in a matching mode and sealed to form an outer cylinder; the side wall (1) is in sealing connection with the cover plate (2); a rubber gasket is placed in the groove of the cover plate (2); both the groove of the cover plate (2) and the rubber gasket are provided with holes; the centers of the bottom plate (9) and the cover plate (2) are respectively provided with the holes of the oil inlet (3) and the oil outlet (4); the element tube seat (5) is fixed in a tube seat groove; the upper surface of the element tube seat (5) is provided with the metal spring fastener (6); and a plurality of line incoming and line outgoing terminals are arranged on the oil cooler. According to the oil cooler used for the high-power high-voltage vacuum device, better cooling efficiency can be achieved, and temperature rise can be controlled.

Description

A kind of oil cooler for high-power high voltage electron tube

Technical field

The invention belongs to power supply cooling technology field, be specifically related to a kind of oil cooler for high-power high voltage electron tube.

Background technology

China circulator No. 2 A(HL-2A) power-supply system of TOKAMAK device auxiliary heating needs the output of paired pulses high-power high voltage to modulate.The high-power high voltage tetrode (electrovacuum element) that need to adopt this power-supply system output modulator is carried out cooling, this element is more than only anode dissipation power has just reached 4kw.The air-cooled form of cooling general employing of tradition large power, electrically vacuum device, although air cooling system structure is simpler, air heat transfer efficiency is lower, compares with oil cooling, its conductive coefficient is lower.In addition, insulation and the heat radiation impact on high-voltage electric vacuum device of air purity, temperature, humidity and air pressure is larger, and insulation distance makes structure be difficult to compactness.

Summary of the invention

The object of the invention is to overcome the defect of prior art, utilize cooled transformer oil flow circuit to carry out high-power high voltage electron tube cooling, make the reliable and stable work of device, compact conformation.

For achieving the above object, technical scheme of the present invention is that a kind of oil cooler for high-power high voltage electron tube, comprises sidewall, cover plate, oil-in, oil-out, element base, metal spring buckle and base plate; Wherein, sidewall is hollow cylinder structure, and base plate, cover plate are circular discoid, on have and overlap with sidewall end face and the groove slightly wider than sidewall thickness, sidewall coordinates adhering and sealing to form urceolus with base plate, outer cylindrical shell flows evenly cold oil, also makes oil cooler compact conformation, is easy to processing; Sidewall is connected with cover plate for sealing, forms a container that has import and export; On slot cover, place rubber packing, the center of base plate and cover plate is respectively equipped with the hole that oil-in, oil-out are set, and is sealed into hydraulic fluid port, oil-out to install; On base plate, be also provided with the base groove mating with element base, element base is fixed on base groove, and element base upper surface is provided with the metal spring buckle for fixing high-power high voltage tetrode, is convenient to the handling of high-power high voltage tetrode in the time of repair and maintenance; Meanwhile, element base as a utmost point electrical contact device of electron tube, is connected with element lead-out wire terminal connections post simultaneously, and object is to reduce oil cooler internal electrical interface unit; Oil cooler is provided with some line terminals; Fin, electron tube outer wall are electrovacuum element part.Transformer oil through through oil-in, element base, fin, electron tube outer wall, flows out through oil-out successively; In oil cooler inside, oil-in has higher flow velocity through the transformer oil of element base and electron tube fin, and washes away the external cornice of device and walk heat, improves radiating efficiency.

Described sidewall and base plate resin material adhering and sealing, sidewall is connected sealing with cover plate by cover plate liner.

Described sidewall, cover plate, base plate are selected polymethyl methacrylate or epoxy resin.

Described 4 line terminals adopt binding post form, are opened in respectively on cover plate and sidewall.

Described binding post is fixed by crush seal mode or the fastening adhering and sealing mode of screw rod.

When described binding post is located on sidewall, must inside sidewalls bonding one in the identical plate of side-wall material as platform.

Described oil-in is provided with the terminal pad with lug, to fix by the nut screwing on oil-in, fixing hole is set on lug, and the end face that oil-in is positioned at container is welded to connect sheet or turns hole tapping copper flexible cord Connection Element base and be extremely connected with one of electron tube

Described oil-in, terminal pad, element base are made by the good metal material of conduction, electroplating surfaces with tin, and above part is linked to be a conductor, uses as anode or other heavy current circuit exits of high-power high voltage electron tube.

Described element base and binding post and bucket inner metal component processing edge rounding are avoided point discharge possibility as far as possible.

On described oil-in, oil-out, there is screw thread, can setting pressure, flow, temperature sensor, can control cooling system, on oil-out, connect wavy metal Pipe movable joint, easy access is safeguarded.

Beneficial effect of the present invention is: the transformer oil through test has than the higher more stable dielectric strength of air, transformer oil thermal conductivity ratio air is high 5 times, adopting transformer oil to circulate carries out cooling to high-power high voltage electron tube, there is better cooling effectiveness, also be convenient to temperature rise to control, can overcome the deficiency of air cooling way, make device working stability reliable.

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3 is a place partial enlarged drawing of Fig. 2.

In figure, 1. sidewall, 2. cover plate, 3. oil-in, 4. oil-out, 5. element base, 6. metal spring buckle, 7. fin, 8. electron tube outer wall, 9. base plate, 10.11.12. binding post, 13-terminal pad.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described further.

A kind of oil cooler for high-power high voltage electron tube as shown in Figure 1 and Figure 2, is assembled by following steps:

1. first the pipe of the polymethyl methacrylate of customization or epoxide resin material or plate are processed into blank material, above-mentioned bi-material is application on device all; Be machined to respectively again the part of oil cooler outer barrel, comprise sidewall 1, base plate 9 and cover plate 2, on base plate 9, cover plate 2, all have the sidewall channels fixing with sidewall 1, and be respectively equipped with the hole that oil-in 3, oil-out 4 are set, on hole, sealing is provided with oil-in 3, oil-out 4; Sidewall 1 end turns hole tapping, and above centerline hole overlaps, and available screw rod connects press seal, and similar flange connects; On base plate 9, be also provided with the base groove mating with element base 5; Oil-in 3, terminal pad 13, element base 5 are made by the good metal material machine work of conduction, electroplating surfaces with tin, and sidewall 1, base plate 9 and cover plate 2 materials are the withstand voltage insulating material of employing, preferably polymethyl methacrylate or epoxy resin.

2. sidewall 1 and the bonding outer barrel 1 that becomes of base plate 9 use resin materials, outer barrel 1 upper end drilling and tapping, is just connected sealing with

cover plate

2,3 binding post installing holes of outer barrel 1 side opening.

3. according to electrovacuum element lead-out wire electric parameter, binding post can adopt two kinds of sealings and fixed form: a. crush seal is fixed, see the binding post 11 of Fig. 2, the plate of first smearing resin bonding one fritter same material in the bucket wall inner side of outer barrel 1, forms a chain-wales at inwall, as shown in Figure 3, then boring, there are step and O type circle in binding post the inner, the bolted crush seal of binding post outer end, and O type loop material can be selected fluorubber or silicon rubber according to oil temperature; B. the fastening adhering and sealing of screw rod is fixed, and first at outer barrel 1 sidewall drilling and tapping, then the binding post that is processed into screw shaped is smeared to adhering resin, is then tightened, as shown in the binding post 10 of Fig. 2;

4. element base 5 is fixed on the base groove of base plate 9, metal buckle 6 and element base 5 can be fixed with spot welding or riveting method, interior metal part, in the bucket of element base 5 and binding

post

10,11,12, part is processed edge rounding, avoids point discharge possibility as far as possible.

5. oil-in 3, oil-out 4, cover plate liner are processed with oil-resistant rubber slab, and cover plate liner, cover plate 2 surroundings are evenly arranged hole, for fixing with sidewall 1 sealing.

6. electrovacuum element is arranged on 5, with behind metal spring buckle 6 fixed positions, with metal clasp, copper flexible cord, line nose, element leading-out terminal is connected with binding

post

10,11,12 respectively, press cover plate liner, fixing upper end cover plate 2, crimping sealing.

7. setting pressure, flow, temperature sensor on oil-in 3, oil-out 4, can control cooling system, has soft articulation on oil-out, and easy access is safeguarded.

Above to working of an invention to being explained in detail, above-mentioned execution mode is only optimum embodiment of the present invention, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from aim of the present invention, make various variations.

Claims

1. for an oil cooler for high-power high voltage electron tube, it is characterized in that comprising sidewall (1), cover plate (2), oil-in (3), oil-out (4), element base (5), metal spring buckle (6) and base plate (9); Wherein, sidewall (1) is hollow cylinder structure, base plate (9), cover plate (2) are circular discoid, on have and overlap with sidewall end face and than the slightly wide groove of sidewall (1) thickness, sidewall (1) coordinates adhering and sealing to form urceolus with base plate (9), sidewall (1) is tightly connected with cover plate (2), forms a container that has import and export; On cover plate (2) groove, place rubber packing; Porose on cover plate (2) groove and rubber packing, the center of base plate (9), cover plate (2) is respectively equipped with the hole that oil-in (3), oil-out (4) are set, and is sealed into hydraulic fluid port (3), oil-out (4) to install; On base plate (9), be also provided with the base groove mating with element base (5), element base (5) is fixed on base groove, and element base (5) upper surface is provided with the metal spring buckle (6) for fixing high-power high voltage tetrode; Oil cooler is provided with some line terminals.

2. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, is characterized in that sidewall (1) and base plate (9) use resin material adhering and sealing, and sidewall (1) is connected sealing with cover plate (2) by cover plate liner.

3. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, is characterized in that sidewall (1), cover plate (2), base plate (9) select polymethyl methacrylate or epoxy resin.

4. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, is characterized in that some line terminals adopt the form of binding post (10,11,12), are opened in respectively on cover plate (2) and sidewall (1).

5. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 4, is characterized in that binding post (10,11,12) fixes by crush seal mode or the fastening adhering and sealing mode of screw rod.

6. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 5, when it is characterized in that being located at binding post (11) on sidewall (1) and adopting crush seal fixing, must be in sidewall (1) one of side bonds in the identical plate of side-wall material as platform.

7. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, it is characterized in that oil-in (3) is provided with the terminal pad (13) with lug, by the nut screwing on oil-in (3), terminal pad (13) is fixed, fixing hole is set on lug, and the end face that oil-in (3) is positioned at container is welded to connect sheet or turns hole tapping copper flexible cord Connection Element base (5) and be extremely connected with one of electron tube.

8. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 7, is characterized in that oil-in (3), terminal pad (13), element base (5) make by the good metal material machine work of conduction, electroplating surfaces with tin.

9. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, is characterized in that element base (5) and binding post (10,11,12) and bucket inner metal component processing edge rounding.

10. a kind of oil cooler for high-power high voltage electron tube as claimed in claim 1, oil-in (3), oil-out (4) are provided with the screw thread of setting pressure, flow, temperature sensor, and oil-out connects wavy metal Pipe movable joint on (4).