CN217426508U - Oil immersed hollow insulating cylinder test reactor - Google Patents
Oil immersed hollow insulating cylinder test reactor Download PDFInfo
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- CN217426508U CN217426508U CN202221934299.4U CN202221934299U CN217426508U CN 217426508 U CN217426508 U CN 217426508U CN 202221934299 U CN202221934299 U CN 202221934299U CN 217426508 U CN217426508 U CN 217426508U
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Abstract
The utility model discloses an experimental reactor of oily hollow insulating cylinder, include: the reactor comprises a reactor shell, wherein an inductance coil is arranged in the reactor shell; the outside of the inductance coil is coated with insulating oil; the electrical appliance shell comprises a glass fiber reinforced plastic cylinder, and an upper end cover plate and a lower end cover plate which are respectively connected with the upper end and the lower end of the glass fiber reinforced plastic cylinder; the nonmagnetic heat pipe is fixedly connected with the reactor shell; the non-magnetic heat pipe comprises an evaporation section, a heat insulation section and a condensation section; wherein the evaporation section is immersed in the insulating oil, and the condensation section is fixed perpendicular to the upper end cover plate and extends to the outer side of the upper end cover plate; the non-magnetic heat pipes comprise a plurality of non-magnetic heat pipes, evaporation sections of the plurality of non-magnetic heat pipes are arranged at intervals along the diameter of the glass fiber reinforced plastic cylinder, and condensation sections of the plurality of non-magnetic heat pipes are alternately arranged on two sides of a vertical plane of the glass fiber reinforced plastic cylinder.
Description
Technical Field
The utility model relates to a high-voltage apparatus field, especially an experimental reactor of oily hollow insulating cylinder.
Background
The test reactor is used for compensating capacitive load current or generating series resonance with the capacitive load in a high-voltage field test so as to meet the requirement of test voltage. The aim is to reduce the reactive power output of the power supply.
The test reactor has the characteristics of mobility and short-time cycle work system.
Under many field test conditions, the selection of an oil-immersed hollow insulation barrel reactor may be the best solution.
Under the short-time periodic work, for example, alternating current withstand voltage tests are carried out on a plurality of pieces of power equipment, the duration of the withstand voltage tests is one hour, after the power is cut off, the test reactor needs to be cooled through heat dissipation for a period of time, after the temperature is reduced to an allowable value, the test of the next piece of equipment is continued, and the process is repeated. The cooling and heat dissipation time directly determines the completion time limit of the whole task, which is very important for the utilization rate of power equipment and the timeliness of power supply.
The shell of the oil immersed hollow insulating cylinder reactor is made of glass fiber reinforced plastics, and the high working voltage of the reactor can be borne by the good insulating property of the shell. However, glass fiber reinforced plastic has poor heat transfer characteristics, so that the reactor dissipates heat to the atmosphere very slowly. The speed of heat generation of the test reactor when the test reactor is electrified is far greater than the heat dissipation speed of the glass fiber reinforced plastic shell to the atmosphere, so that the temperature in the electric appliance is continuously increased. After a withstand voltage test with a duration of one hour, the internal temperature of the reactor approaches the limit operating temperature. And because the heat dissipation after the power failure is slower, the temperature can be reduced to the allowable temperature for working again only by needing longer cooling time.
Therefore, the utility model is especially provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an experimental reactor of oily hollow insulating cylinder can promote the heat dispersion of reactor.
In order to solve the above problem, an embodiment of the utility model provides an experimental reactor of oily hollow insulating cylinder, include:
the reactor comprises a reactor shell, wherein an inductance coil is arranged in the reactor shell; the outside of the inductance coil is coated with insulating oil; the reactor shell comprises a glass fiber reinforced plastic cylinder, and an upper end cover plate and a lower end cover plate which are respectively connected with the upper end and the lower end of the glass fiber reinforced plastic cylinder;
the nonmagnetic heat pipe is fixedly connected with the reactor shell; the non-magnetic heat pipe comprises an evaporation section, a heat insulation section and a condensation section; the evaporation section is immersed in the insulating oil, and the condensation section is fixed perpendicular to the upper end cover plate and extends to the outer side of the upper end cover plate;
the non-magnetic heat pipes comprise a plurality of non-magnetic heat pipes, evaporation sections of the plurality of non-magnetic heat pipes are arranged at intervals along the diameter of the glass fiber reinforced plastic cylinder, and condensation sections of the plurality of non-magnetic heat pipes are alternately arranged on two sides of a vertical plane of the glass fiber reinforced plastic cylinder.
Optionally, a plurality of annular fins are arranged on the outside of the condensation section from top to bottom.
Optionally, the pipe diameter of the condensation section of the non-magnetic heat pipe is greater than the pipe diameter of the evaporation section.
Optionally, an insulating support tube and an insulating base plate are further arranged in the glass fiber reinforced plastic cylinder, the inductance coil is fixed on the insulating support tube, the inductance coil and the insulating support tube are fixed on the insulating base plate, and the insulating base plate is fixedly connected with the lower end cover plate.
Optionally, the non-magnetic heat pipe includes a wick having a capillary structure, and the wick is filled with a working fluid for evaporation by heating, so as to conduct heat of the evaporation section to the condensation section.
Optionally, the axial direction of the evaporation section and the horizontal plane form a downward inclination angle of 5 °.
Optionally, the non-magnetic heat pipe evaporation section and the upper end face of the inductance coil are kept at a certain distance.
Compared with the prior art, the utility model discloses following beneficial effect has: through the non-magnetic heat pipe, the heat of the inductance coil is conducted to the non-magnetic heat pipe through the insulating oil coated outside the non-magnetic heat pipe, and then conducted to the atmosphere outside the reactor shell for rapid heat dissipation. Meanwhile, the condensation sections of the heat pipes are alternately arranged on two sides of the vertical plane of the glass fiber reinforced plastic cylinder, so that a large heat exchange space is formed between two adjacent groups of heat pipes, and the heat dissipation efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of a main cross-sectional structure of an oil immersed hollow insulating cylinder test reactor provided by an embodiment of the utility model;
fig. 2 is a schematic view of a top view structure of an oil immersed hollow insulation cylinder test reactor provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a nonmagnetic heat pipe.
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an oil immersed hollow insulating cylinder testing reactor, including a glass fiber reinforced plastic cylinder 1-1, wherein upper and lower ends of the glass fiber reinforced plastic cylinder 1-3 are respectively and fixedly connected to an upper end cover plate 1-2 and a lower end cover plate 1-3 to form a containing cavity, a hollow cylindrical inductance coil 1-10 is disposed in the containing cavity, and the containing cavity is filled with insulating oil 1-13. The upper end cover plate 1-2 is fixed with a plurality of nonmagnetic heat pipes 2.
The hollow cylindrical inductance coils 1-10 are fixed outside the insulation support pipes 1-12. The hollow cylindrical inductance coils 1-10 and the insulating support pipes 1-12 are fixed on the insulating backing plates 1-7 through screws 1-9. The insulating base plate 1-7 is fixed on the lower end cover plate 1-3 through a screw 1-8. The hollow cylindrical induction coils 1-10 are connected to an external circuit through upper terminals 1-14 and lower terminals 1-11.
The upper end cover plate 1-2 and the lower end cover plate 1-3 are respectively connected with the glass fiber reinforced plastic cylinder 1-1 in a sealing way through an upper sealing ring 1-5 and a lower sealing ring 1-15. The upper and lower ends of the glass fiber reinforced plastic cylinder 1-1 are extended outward in a radial direction, so that the upper end cover plate 1-2 and the lower end cover plate 1-3 are fixed to the glass fiber reinforced plastic cylinder 1-1 by upper and lower screws 1-6 and 1-4, respectively, at the extended portions. The heat insulation sections 2-6 of a plurality of L-shaped nonmagnetic heat pipes 2 with different lengths are fixed on an upper end cover plate 1-2 through bonding, evaporation sections 2-5 of each heat pipe are arranged along the diameter direction of a glass fiber reinforced plastic cylinder 1-1 and are immersed in insulating oil 1-13 in a mutually parallel mode, a condensation section 2-7 of each heat pipe is vertically fixed on the upper end cover plate 1-2, and condensation sections 2-7 of adjacent heat pipes are alternately arranged on two sides of a vertical plane in the glass fiber reinforced plastic cylinder 1-1 to realize cross arrangement (combined with a figure 2), so that the adjacent condensation sections 2-7 are not close to each other too closely, enough space is reserved for heat exchange with the atmosphere, and the heat dissipation efficiency is improved. As described above, the length of the nonmagnetic heat pipe 2 is different, the evaporation section of the nonmagnetic heat pipe 2 closer to the outer side of the glass fiber reinforced plastic cylinder 1-1 is shorter, and the evaporation section of the nonmagnetic heat pipe 2 closer to the inner side of the glass fiber reinforced plastic cylinder 1-1 is longer, so that the space inside the glass fiber reinforced plastic cylinder 1-1 can be more fully utilized. In addition, the distance H between the upper ends of the hollow cylindrical inductance coils 1-10 and the evaporation sections 2-5 of the non-magnetic heat pipe 2 can be reasonably selected through calculation, so that the additional eddy heat generated by the magnetic field to the non-magnetic heat pipe 2 can be ignored. In addition, as described above, the hollow cylindrical induction coil 1-10 can be connected with the insulating pad plate 1-7 through the screw, and the insulating pad plate 1-7 can be connected with the lower end cover plate 1-3 through the screw, so that the distance between the upper end of the hollow cylindrical induction coil 1-10 and the evaporation section 2-5 of the non-magnetic heat pipe 2 can be adjusted by replacing the insulating pad plates 1-7 with different heights, and the distance can be adjusted to the extent that the additional eddy heat generated by the magnetic field to the non-magnetic heat pipe 2 can be ignored.
The height of the insulating oil 1-13 should be over the evaporation section 2-5 of the non-magnetic heat pipe 2 so that the heat generated by the hollow cylindrical induction coil 1-10 is sufficiently transferred to the non-magnetic heat pipe 2 through the insulating oil 1-13. The non-magnetic heat pipe 2 has excellent heat transfer properties so that heat generated by the hollow cylindrical induction coils 1 to 10 can be conducted.
The L-shaped non-magnetic heat pipes 2 with different lengths are adhered on the upper end cover plate 1-2, so that heat generated by the hollow cylindrical inductance coils 1-10 can be rapidly conducted to the surrounding atmosphere through the insulating oil 1-13. When the temperature of the internal insulating oil 1-13 reaches a certain value, the heat transfer efficiency of the non-magnetic heat pipe 2 can partially or completely offset the heat generated by the hollow cylindrical inductance coil 1-10, so that the temperature rise speed of the insulating oil 1-13 is slowed down or the thermal balance is achieved. After the reactor is powered off, the heat of the insulating oil 1-13 can be quickly conducted to the ambient atmosphere through the good heat transfer characteristic of the nonmagnetic heat pipe 2, so that the cooling time is greatly shortened, and the temperature of the reactor is reduced to the temperature capable of working again in a short time.
Because the heat pipe has an efficient heat conduction effect, the oil immersed hollow insulating cylinder test reactor with the heat pipe can reduce the running temperature rise and reduce the resistance temperature effect of the metal conductor, thereby reducing the active loss and achieving the effects of energy conservation and emission reduction.
The heat pipe has the characteristics of large heat transmission quantity, no active element, no power consumption, low operation cost, light weight, simple structure, easy processing, durability and long service life.
As shown in FIG. 3, the non-magnetic heat pipe 2 comprises a tube shell 2-1 of non-magnetic metal (such as copper, aluminum, etc.), a wick 2-2 and a vapor chamber 2-3 in the tube shell 2-1, and fins 2-4 outside a condensation section 2-7. The inner wall of the tube shell 2-1 of the evaporation section 2-5 is provided with a liquid suction tube core 2-2 with a hollow cavity inside, the liquid suction tube core 2-2 is tightly attached to the inner wall of the tube shell 2-1, and the liquid suction tube core 2-2 is of a porous capillary structure. The heat pipe shell 2-1 is vacuumized to remove air and other impurities in the shell 2-1, and then deionized water is filled in the liquid suction pipe core 2-2 as working liquid.
The heat pipe 2 is axially divided into three sections, namely an evaporation section 2-5, a heat insulation section 2-6 and a condensation section 2-7 (the length sections are respectively L marked in figure 3) 1 、L 0 、L 2 ). The axial direction of the evaporation section 2-5 and the horizontal plane form a downward inclination angle of 5 degrees, so that the working fluid can flow to the end face of the evaporation section 2-5 conveniently. In order to increase the heat exchange efficiency between the condensing section 2-7 and the surrounding atmosphere, a plurality of circular ring fins 2-4 are arranged on the condensing section 2-7. Insulation for a buildingThe hot section 2-6 is a transition pipe of varying diameter.
In order to increase the heat dissipation area of the condensation section 2-7, the pipe shell with the diameter larger than that of the evaporation section is selected (namely phi 2 is larger than phi 1). Therefore, the length of the condensing section 2-7 is shortened, and convenience is provided for hoisting and transporting.
The evaporation section 2-5 of the non-magnetic heat pipe 2 is positioned in the insulating oil 1-13, and the condensation section 2-7 of the non-magnetic heat pipe 2 is positioned in the atmosphere above the upper end cover plate 1-2. When the evaporation section 2-5 of the nonmagnetic heat pipe 2 is heated, working liquid in the liquid suction pipe core 2-2 is heated and evaporated, the working liquid is evaporated on a liquid-gas interface of the evaporation section 2-5 to be in a steam state, steam flows to the condensation section 2-7 of the nonmagnetic heat pipe 2 through the steam cavity 2-3 under the action of steam pressure, the steam is condensed into liquid on the condensation section 2-7 and releases heat, and the heat is transferred to ambient air through the liquid suction pipe core 2-2, the pipe wall of the condensation section 2-7 of the nonmagnetic heat pipe 2 and the fins; the condensed working liquid flows down to the liquid suction pipe core 2-2 of the heat insulation section 2-6 along the pipe wall of the condensation section 2-7, and the working liquid flows back to the evaporation section 2-5 under the action of capillary force. The heat is transmitted to the end condensation section 2-7 from the evaporation section 2-5 of the non-magnetic heat pipe 2 by the reciprocating circulation, and the heat of the insulating oil is transmitted to the surrounding atmosphere, so that the purposes of heat dissipation and temperature reduction are achieved.
The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides an oily hollow insulation cylinder test reactor which characterized in that includes:
the reactor comprises a reactor shell, wherein an inductance coil is arranged in the reactor shell; the outside of the inductance coil is coated with insulating oil; the reactor shell comprises a glass fiber reinforced plastic cylinder, and an upper end cover plate and a lower end cover plate which are respectively connected with the upper end and the lower end of the glass fiber reinforced plastic cylinder;
the nonmagnetic heat pipe is fixedly connected with the reactor shell; the non-magnetic heat pipe comprises an evaporation section, a heat insulation section and a condensation section; wherein the evaporation section is immersed in the insulating oil, and the condensation section is fixed perpendicular to the upper end cover plate and extends to the outer side of the upper end cover plate;
the non-magnetic heat pipes comprise a plurality of non-magnetic heat pipes, evaporation sections of the plurality of non-magnetic heat pipes are arranged at intervals along the diameter of the glass fiber reinforced plastic cylinder, and condensation sections of the plurality of non-magnetic heat pipes are alternately arranged on two sides of a vertical plane of the glass fiber reinforced plastic cylinder.
2. The oil immersed hollow insulation cylinder test reactor according to claim 1, wherein a plurality of annular fins are arranged outside the condensation section from top to bottom.
3. The oil immersed hollow insulating cylinder test reactor according to claim 1, wherein the pipe diameter of the condensation section of the nonmagnetic heat pipe is larger than that of the evaporation section.
4. The oil immersed hollow insulating cylinder test reactor according to claim 1, wherein an insulating support tube and an insulating base plate are further arranged in the glass fiber reinforced plastic cylinder, the inductance coil is fixed on the insulating support tube, the inductance coil and the insulating support tube are fixed on the insulating base plate, and the insulating base plate is fixedly connected with the lower end cover plate.
5. The oil immersed hollow insulation cylinder test reactor according to claim 1, wherein the nonmagnetic heat pipe internally comprises a liquid suction pipe core with a capillary structure, and a working liquid is heated and evaporated in the liquid suction pipe core so as to conduct heat of the evaporation section to the condensation section.
6. The oil immersed hollow insulating cylinder test reactor according to claim 5, wherein the axial direction of the evaporation section and the horizontal plane form a downward inclination angle of 5 degrees.
7. The oil immersed hollow insulating cylinder test reactor according to claim 1, wherein the evaporation section of the nonmagnetic heat pipe is spaced from the upper end face of the inductance coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221934299.4U CN217426508U (en) | 2022-07-26 | 2022-07-26 | Oil immersed hollow insulating cylinder test reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221934299.4U CN217426508U (en) | 2022-07-26 | 2022-07-26 | Oil immersed hollow insulating cylinder test reactor |
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| Publication Number | Publication Date |
|---|---|
| CN217426508U true CN217426508U (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221934299.4U Active CN217426508U (en) | 2022-07-26 | 2022-07-26 | Oil immersed hollow insulating cylinder test reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117320419A (en) * | 2023-11-28 | 2023-12-29 | 东莞市富其扬电子科技有限公司 | Two-phase flow electric element radiator |
-
2022
- 2022-07-26 CN CN202221934299.4U patent/CN217426508U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117320419A (en) * | 2023-11-28 | 2023-12-29 | 东莞市富其扬电子科技有限公司 | Two-phase flow electric element radiator |
| CN117320419B (en) * | 2023-11-28 | 2024-02-20 | 东莞市富其扬电子科技有限公司 | Two-phase flow electric element radiator |
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