CN205049170U - Energy -saving special high voltage transmission lines ice -melt of strong loop heavy current system for experiment - Google Patents
Energy -saving special high voltage transmission lines ice -melt of strong loop heavy current system for experiment Download PDFInfo
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- CN205049170U CN205049170U CN201520765475.XU CN201520765475U CN205049170U CN 205049170 U CN205049170 U CN 205049170U CN 201520765475 U CN201520765475 U CN 201520765475U CN 205049170 U CN205049170 U CN 205049170U
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- 230000008018 melting Effects 0.000 description 5
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Abstract
The utility model provides an energy -saving special high voltage transmission lines ice -melt of strong loop heavy current system for experiment, including large capacity voltage regulator and magnetic effect current transformation ware, magnetic effect current transformation ware is installed in a can, two terminals of two outputs for connecting extra -high voltage ice -melt test lead, the can is equipped with a plurality of groups business turn over wind gap, every group business turn over wind gap sets up first business turn over wind gap and second business turn over wind gap on the wall of the relative both sides of can including the symmetry, the first business turn over wind gap and the second business turn over wind gap in every group business turn over wind gap are connected with cooling back installation, just be equipped with a temperature sensor respectively to every first business turn over wind gap and every second business turn over wind gap in the can, the large capacity voltage regulator, magnetic effect current transformation ware, each temperature sensor and each cooling back installation all link to each other with a controlling means. This heavy current system temperature is definitely controllable, output current wide range, with low costs, job stabilization are reliable, control the convenience, work efficiency is high, operating power consumption is low.
Description
Technical field
The utility model relates to electrical engineering technical field, is specifically related to a kind of strong circulating energy-efficient type extra high voltage line ice-melt test big current system.
Background technology
Extra high voltage line transmission capacity is large, and circuit is long, and normal through middle heavy icing area, ice damage can not be ignored its impact.For grasping icing, the ice-melt rule of extra high voltage line comprehensively, a lot of scholar and enterprise are all studied from the angle of test.At present, carry out extra high voltage line icing, ice-melt experimental study mainly in the controlled environment chamber in carry out the test of icing Change Threshold Current Density Simulation and ice-melt test.Two classes tests all need to use big current system, but due to extra-high voltage wire diameter thick, sub-conductor is many, and existing rising test system is difficult to meet current requirements when carrying out the test of being correlated with.First, the ice melting current of Ultra-high Voltage Wire at least will reach 10000A, in order to icing, the ice-melt characteristic of Ultra-high Voltage Wire can be studied in wide region, the test current needed at least will reach 20000A, and the pilot system maximum output current that can export larger current in existing line icing, ice-melt test unit is no more than 3000A, be far not by far up to the mark.Secondly, existing icing, ice-melt rising test device all adopt not with cooling device or the dry type rising current transformer structure adopting poor efficiency air-cooled structure, when it carries out great current deicing experiment, device temperature rise is large, can not long-play, when ice melting current rises to more than 10000A, the problem of device heating is very outstanding, cannot run at all.Again, the most volume of great current deicing test unit is comparatively large, and efficiency is low, and in atmosphere, bring very large waste and loss, plant running cost is high for the heat energy dissipation that plant running produces.
Utility model content
The technical problems to be solved in the utility model is the deficiency overcoming prior art existence, provides the strong circulating energy-efficient type extra high voltage line ice-melt test big current system that a kind of temperature is definitely controlled, output current scope is wide, cost is low, working stability is reliable, manipulation is convenient, work efficiency is high, operation energy consumption is low.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
Big current system is used in a kind of strong circulating energy-efficient type extra high voltage line ice-melt test, the magnetic effect power pack comprising Large Copacity pressure regulator and be connected with Large Copacity pressure regulator, described magnetic effect power pack is installed in a can, two output terminals of magnetic effect power pack lead to outside two terminals as connecting extra-high voltage ice-melt test lead of can by circuit, described can is provided with some groups of inlet and outlets, often organize inlet and outlet to comprise and be symmetricly set on the first inlet and outlet in the two lateral walls of can and the second inlet and outlet, often organize between the first inlet and outlet of inlet and outlet and the second inlet and outlet and be connected with a cooling back installation worked alone, just a temperature sensor is respectively equipped with to each first inlet and outlet and each second inlet and outlet in described can, described Large Copacity pressure regulator, magnetic effect power pack, each temperature sensor is all connected with a control device with each cooling back installation.
Above-mentioned big current system, preferably, described big current system also comprises divider, and described divider and Large Copacity pressure regulator are connected with control device and power.
Above-mentioned big current system, preferably, described cooling back installation comprises the air channel infiltrated in chilled water, the two ends in described air channel are tightly connected with the first inlet and outlet and the second inlet and outlet respectively, and each first inlet and outlet and each second inlet and outlet are all provided with the controlled rotating blower fan be connected with described control device.
Above-mentioned big current system, preferably, described controlled rotating blower fan is large power shaft flow fan.
Above-mentioned big current system, preferably, the quantity of described first inlet and outlet and the second inlet and outlet is nine, nine the first inlet and outlets be matrix arrangements on a sidewall of can, nine the second inlet and outlets are that matrix arrangements is on another sidewall of can.
Above-mentioned big current system, preferably, each temperature sensor is all arranged near magnetic effect power pack.
Above-mentioned big current system, preferably, described can is connected with two incoming seal sleeve pipes and two outlet Sealed casing pipes, two output terminals of described Large Copacity pressure regulator are by being connected with two input ends of magnetic effect power pack through the circuit of two incoming seal sleeve pipes, and two output terminals of described magnetic effect power pack lead to the circuit of can outside through two outlet Sealed casing pipes.
Above-mentioned big current system, preferably, described incoming seal sleeve pipe and outlet Sealed casing pipe are 380V electro-insulating rubber teleflex.
Compared with prior art, the utility model has the advantage of: strong circulating energy-efficient type extra high voltage line ice-melt test big current system of the present utility model can export the ice melting current up to 20000A, plant running energy consumption is low, running heat energy can effective recycling, continuous service temperature rise is low, electric current can be regulated by wide region, for studying icing, the ice-melt rule of extra high voltage line comprehensively, thus the icing of strong support extra high voltage line, ice-melt test, even for the application of heat resistance big current wire provides experimental basis.This big current system temperature is definitely controlled, output current scope is wide, cost is low, working stability is reliable, manipulation is convenient, work efficiency is high, is proved to be respond well, reaches designing requirement completely through actual motion.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the utility model strong circulating energy-efficient type extra high voltage line ice-melt test big current system.(omission air channel)
Fig. 2 is the structural representation of cooling back installation in the utility model.
Marginal data:
1, divider; 2, Large Copacity pressure regulator; 3, magnetic effect power pack; 4, can; 41, the first inlet and outlet; 42, the second inlet and outlet; 5, temperature sensor; 6, control device; 7, controlled rotating blower fan; 8, incoming seal sleeve pipe; 9, outlet Sealed casing pipe; 10, air channel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model strong circulating energy-efficient type extra high voltage line ice-melt test big current system, comprise divider 1, Large Copacity pressure regulator 2 and magnetic effect power pack 3, the output terminal of Large Copacity pressure regulator 2 is connected with the input end of magnetic effect power pack 3, magnetic effect power pack 3 is installed in a can 4, two output terminals of magnetic effect power pack 3 lead to outside two terminals (P1 terminal and P2 terminal) as connecting extra-high voltage ice-melt test lead of can 4 by circuit, a sidewall in the two lateral walls of can 4 is provided with some first inlet and outlets 41, another sidewall is provided with some second inlet and outlets 42, some first inlet and outlets 41 are with some second inlet and outlet 42 one_to_one corresponding and be arranged symmetrically with in pairs, a cooling back installation worked alone is connected with between often pair of first inlet and outlet 41 and the second inlet and outlet 42, just a temperature sensor 5 is respectively equipped with to each first inlet and outlet 41 and each second inlet and outlet 42 in can 4, Large Copacity pressure regulator 2, magnetic effect power pack 3, each temperature sensor 5 and each cooling back installation are all connected with a control device 6, divider 1 and Large Copacity pressure regulator 2 are connected with control device 6 and power.
In the present embodiment, cooling back installation comprises air channel 10, air channel 10 infiltrates in chilled water, realize exchange and the recovery of heat energy, the two ends in air channel 10 are tightly connected with the first inlet and outlet 41 and the second inlet and outlet 42 respectively, and each first inlet and outlet 41 is all provided with each second inlet and outlet 42 the controlled rotating blower fan 7 be connected with control device 6.Controlled rotating blower fan 7 is large power shaft flow fan.The stainless-steel tube that air channel 10 adopts the anticorrosion of sp act process, diameter is 200mm is made.
In the present embodiment, the quantity of the first inlet and outlet 41 and the second inlet and outlet 42 is nine, nine the first inlet and outlets 41 in matrix arrangements on a sidewall of can 4, nine the second inlet and outlets 42 in matrix arrangements on another sidewall of can 4.
In the present embodiment, each temperature sensor 5 is all arranged near magnetic effect power pack 3, also namely all temperature sensors 5 are divided into the both sides of magnetic effect power pack 3 and arrange near magnetic effect power pack 3, nine temperature sensors 5 of each side are also matrix arrangements, and just to corresponding first inlet and outlet 41 and the second inlet and outlet 42.Temperature sensor 5 magnetic effect power pack 3 is provided with the temperature being beneficial to and accurately detecting near magnetic effect power pack 3.
In the present embodiment, can 4 is connected with two incoming seal sleeve pipes 8 and two outlet Sealed casing pipes 9, two output terminals of Large Copacity pressure regulator 2 are by being connected with two input ends of magnetic effect power pack 3 through the circuit of two incoming seal sleeve pipes 8, and two output terminals of magnetic effect power pack 3 lead to the circuit of can 4 outside through two outlet Sealed casing pipes 9.Incoming seal sleeve pipe 8 and outlet Sealed casing pipe 9 are 380V electro-insulating rubber teleflex.
Above-mentioned divider 1 adopts commercially available TK-1500/380 type two distributor, specified input current 1500A, nominal input voltage 380V; Large Copacity pressure regulator 2 adopts commercially available TY-380/0-320-1500A type pressure regulator, single-phase, output-current rating 1500A, output voltage range 0-320V; Magnetic effect power pack 3 adopts the special copper coil coiling of large velocity ratio; Temperature sensor 5 adopts commercially available DS18B20 temperature sensors of high precision; Can 4 adopts 304 corrosion resistant plate one-shot formings of 5mm thickness.
During the present embodiment strong circulating energy-efficient type extra high voltage line ice-melt test big current system works, powered to divider 1 by external 380V AC power, divider 1 realizes power supply two-way electronic conversion can cut-off state, one tunnel provides single phase poaer supply to Large Copacity pressure regulator 2, and another road provides three-phase supply for control device 6.Large Copacity pressure regulator 2 can export the adjustable single-phase AC voltage of 0 ~ 320V, the exportable 0 ~ 22V of magnetic effect power pack 3 is adjustable alternating voltage.When carrying out ice-melt test, extra-high voltage ice test lead is connected between the P1 terminal of magnetic effect power pack 3 and P2 terminal, magnetic effect power pack 3 runs on short-circuit condition, and the adjustable current that can produce 0-20000A in extra-high voltage ice-melt test lead is tested for ice-melt.In process of the test, the output current being controlled magnetic effect power pack 3 by control device 6 is regulated continuously, the cooling back installation can opening any amount as required cools, the temperature at its position place is also detected by each temperature sensor 5, the cooling back installation opened again corresponding to more than one temperature higher position cools, temperature in can 4 and environment are consistent substantially, the heat radiation of anti-locking system itself produces excessive interference to the temperature field during ice-melt of test guiding, guarantees the high reliability of office of ice-melt test city.Adopt above-mentioned cooling method effectively can not only reduce temperature in can 4 fast, also can save energy consumption.
The control device 6 of the present embodiment can adopt commercially available XDTC3.0 temperature, electric current microcomputer controlling and regulating system, automatically following work can also be carried out: receive by control device 6 temperature signal that each temperature sensor 5 detects correspondence position by combining program of establishing accordingly, sort from high to low according to temperature, the cooling back installation corresponding to temperature sensor 5 that first open temp is the highest cools, if the temperature within a certain period of time in can 4 is still higher than preset value (environment temperature), then open the cooling back installation corresponding to temperature sensor 5 of time high temperature, according to temperature sequential grammar interval ON cycle cooling device one by one from high to low, until in can 4 temperature and environment basically identical, as temperature in can 4 and environment basically identical after, then stop opening other cooling back installations.Certainly, above-mentioned working method also realizes by artificial judgment and manual manipulation.
The utility model has the following advantages:
1, can real simulation up to extra high voltage line ice melting current and the characteristic relation of time under the current conditions on a large scale of 20000A, eliminate the defect that ice melting current-time response curve employing mathematical extrapolation is drawn and cannot effectively be verified, for extra high voltage line ice-melt provides practical directive function;
2, this system is utilized, can ice-melt test for a long time, in the extra high voltage line big current situation of carrying out of Non-intermittent, ice-melt under different current conditions is tested there is reproducible environment temperature field, significantly improve efficiency and the re-production capabilities of extra high voltage line ice-melt test;
3, effectively can reclaim because the energy loss caused is tested in ice-melt, improve the level of efficiency of device, there is the feature of environmental protection and economy, the ability of system output current can be increased substantially simultaneously, for the output application of more big current provides test to support.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the utility model technical conceive prerequisite and conversion also should be considered as protection domain of the present utility model.
Claims (8)
1. one kind strong circulating energy-efficient type extra high voltage line ice-melt test big current system, it is characterized in that: the magnetic effect power pack (3) comprising Large Copacity pressure regulator (2) and be connected with Large Copacity pressure regulator (2), described magnetic effect power pack (3) is installed in a can (4), two output terminals of magnetic effect power pack (3) lead to outside two terminals as connecting extra-high voltage ice-melt test lead of can (4) by circuit, described can (4) is provided with some groups of inlet and outlets, often organize inlet and outlet comprise be symmetricly set on can (4) two lateral walls on the first inlet and outlet (41) and the second inlet and outlet (42), often organize between first inlet and outlet (41) of inlet and outlet and the second inlet and outlet (42) and be connected with a cooling back installation worked alone, just a temperature sensor (5) is respectively equipped with to each first inlet and outlet (41) and each second inlet and outlet (42) in described can (4), described Large Copacity pressure regulator (2), magnetic effect power pack (3), each temperature sensor (5) and each cooling back installation are all connected with a control device (6).
2. big current system according to claim 1, is characterized in that: described big current system also comprises divider (1), and described divider (1) and Large Copacity pressure regulator (2) are connected with control device (6) and power.
3. big current system according to claim 1, it is characterized in that: described cooling back installation comprises the air channel (10) infiltrated in chilled water, the two ends in described air channel (10) are tightly connected with the first inlet and outlet (41) and the second inlet and outlet (42) respectively, and each first inlet and outlet (41) and each second inlet and outlet (42) are all provided with the controlled rotating blower fan (7) be connected with described control device (6).
4. big current system according to claim 3, is characterized in that: described controlled rotating blower fan (7) is large power shaft flow fan.
5. big current system according to claim 1, it is characterized in that: the quantity of described first inlet and outlet (41) and the second inlet and outlet (42) is nine, nine the first inlet and outlets (41) in matrix arrangements on a sidewall of can (4), nine the second inlet and outlets (42) in matrix arrangements on another sidewall of can (4).
6. big current system according to claim 1, is characterized in that: each temperature sensor (5) is all arranged near magnetic effect power pack (3).
7. big current system according to claim 1, it is characterized in that: described can (4) is connected with two incoming seal sleeve pipes (8) and two outlet Sealed casing pipes (9), two output terminals of described Large Copacity pressure regulator (2) are by being connected with two input ends of magnetic effect power pack (3) through the circuit of two incoming seal sleeve pipes (8), and two output terminals of described magnetic effect power pack (3) lead to the outside circuit of can (4) through two outlet Sealed casing pipes (9).
8. big current system according to claim 7, is characterized in that: described incoming seal sleeve pipe (8) and outlet Sealed casing pipe (9) are 380V electro-insulating rubber teleflex.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520765475.XU CN205049170U (en) | 2015-09-30 | 2015-09-30 | Energy -saving special high voltage transmission lines ice -melt of strong loop heavy current system for experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520765475.XU CN205049170U (en) | 2015-09-30 | 2015-09-30 | Energy -saving special high voltage transmission lines ice -melt of strong loop heavy current system for experiment |
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| CN205049170U true CN205049170U (en) | 2016-02-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181003A (en) * | 2015-09-30 | 2015-12-23 | 国家电网公司 | Strong-circulation energy-saving high current system for ice-melting tests of ultra-high voltage line |
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2015
- 2015-09-30 CN CN201520765475.XU patent/CN205049170U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181003A (en) * | 2015-09-30 | 2015-12-23 | 国家电网公司 | Strong-circulation energy-saving high current system for ice-melting tests of ultra-high voltage line |
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Granted publication date: 20160224 Effective date of abandoning: 20180629 |