CN201191706Y - Energy controller for high energy-cumulating large power electric impulse apparatus - Google Patents
Energy controller for high energy-cumulating large power electric impulse apparatus Download PDFInfo
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- CN201191706Y CN201191706Y CNU2008200290517U CN200820029051U CN201191706Y CN 201191706 Y CN201191706 Y CN 201191706Y CN U2008200290517 U CNU2008200290517 U CN U2008200290517U CN 200820029051 U CN200820029051 U CN 200820029051U CN 201191706 Y CN201191706 Y CN 201191706Y
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Abstract
The utility model discloses an energy controller of a high energy-concentrating high power electric pulse device, which mainly solves the problem existing in a current energy controller of poor performance. The scheme is that a self-breakdown spark gap switch is adopted to realize the separation between an accumulator and an energy converter in the energy accumulation period, which is rapidly closed when energy accumulation reaches to a set threshold value, and conducts electric energy in the energy accumulator to the energy converter, and amplifies pulse power. The energy controller comprises an upper electrode and a lower electrode, an upper insulator and a lower insulator, and an upper terminal and a lower terminal, wherein the upper and the lower electrodes (4) (5) adopt cylindrical large-area structures, and are respectively arranged in the inner cavities of the upper insulator (2) and the lower insulator (6), and the external portions of the upper insulator and the lower insulator are respectively fixed with the upper terminal (1) and the lower terminal (7) to connect into an entirety through a gas chamber (3). The utility model not only realizes an energy controller with 4.5k J energy, 50k A current and 3000 times of stable work, and but also increases water sealing performance under high temperature and high water pressure, and can be used to control and conduct electric energy to convert with pulse waves in the electric pulse device.
Description
Technical field
The utility model belongs to electronic applications, relates to gas spark switch, and the energy controller on the electrical pulse device specifically can be used for oil and helps in the equipment of adopting control and conduct electrical power to change to shock wave energy, with raising oil well production increasing amount.
Background technology
Along with the development of oil field industry, the performance of petroleum drilling and mining device has been proposed more and more higher requirement, energy controller is exactly one of critical component that improves the petroleum drilling and mining technology.The energy controller function has two: the first is effectively isolated accumulator and energy converter during accumulation of energy, and it two is when accumulation of energy reaches the control threshold value, and the electric energy that conducts fast in the accumulator is given energy converter, the amplification of realization pulse power.In the process of the amplification that realizes pulse power, the high-tension insulator of controller will bear not only that gas under work high voltage, down-hole high temperature, the big current work of repetition rate is aging, insulator is along the various stress problems of surface pollution, and the shell of controller also will be born up to the hydrostatic pressing of 50MPa and the water-stop under the high hydraulic pressure.In general energy control, along with the continuous service of whole device, the control electrode surface is subjected to strong ablation, and gas-insulated medium is lasting aging, and insulation property are continuing decline, and energy control threshold value has decline by a relatively large margin.The measure of stable control threshold value has two kinds, and a kind of is to select and structural design by the control electrode material, to disperse breakdown point and to form the ablation that multichannel reduces electrode material, stable control threshold value; The 2nd, improve the ability of shell hydrostatic pressure resistant by changing sheathing material and intensity, expand limited expansion chamber and gas flow, it is aging to slow down gas, finally realizes stable energy control and energy delivery fast.
At present, be used for generally adopting gas spark switch as controller in the electric energy energy storage and electrical power amplification of electric pulse equipment, electric pulse equipment is in the accumulation of energy process, and controller is in open-circuit condition, to isolate accumulator and energy converter; After energy storage reached setting threshold, the controller closure was also born the transmission of electromagnetic energy and the amplification of pulse power.Necessarily require controller that the good insulation performance performance is arranged in the accumulation of energy process, high throughflow performance when stable threshold value control performance and closure are arranged is to realize Pulse Power Magnification for this reason.But because electrode is ablated by big electric current in the controller, and the decreasing insulating of insulating gas behind the big electric current of conduction, control threshold value instability all can be caused; And, make insulator will cause control fails again along decline in the face of the ground insulation property owing to be subjected to the influence of insulating gas decreased performance and electrode material splash, cause and can not realize the serious problems of energy storage period interval from energy converter.
The content of utility model
The purpose of this utility model is to overcome the defective of prior art, a kind of energy controller of high cumulative large power, electrically pulser is provided, with under the condition that guarantees the insulation against ground performance, reduce the aging and insulator of electrode erosion and gas along surface pollution, improve the overall performance of energy controller.
The technical scheme that realizes the utility model purpose is the control of adopting a kind of self breakdown gas spark switch that plant capacity is carried out.The principle of this gas spark switch self breakdown is: under External Electrical Field, surface of metal electrode can form the initiating electron in the gas by quantum-mechanical emission by tunnel effect electronics.This initiating electron bumps with the insulating gas molecule under the acceleration that adds, in electrode gap, produce a new electronics by the electron impact ionization gas molecule, this new electronics and initiating electron collision gas molecule again produce more secondary electron, and the number that makes free electron is with the exponential form avalanche multiplication.Can seriously the distort Electric Field Distribution of electrode gap of these electron avalanches makes gas molecule can absorb electronics and other regional gas molecule of the compound generation photon of particle ionization, forms the photo ionization secondary electron and collapses.Secondary electron collapses with positron and collapses bout, and the cation zone that collapses at positron forms the plasma that positive and negative charged particle constitutes, i.e. streamer.This streamer constantly develops to the direction of follow-up electron avalanche, finally causes the puncture of electrode gap.
Control principle of the present utility model just is being based in the above-mentioned gas spark switch control to gas breakdown voltage, by high cumulative large power, electrically pulsing unit, to store electric field energy in lower-wattage and the inherent capacitor energy of long period, by energy controller the control threshold value is set, when reaching the control threshold value, the electric energy that controller conducts in the accumulator is fast given energy converter, and realizes Pulse Power Magnification; In very short time, convert electric energy to shock wave energy by means of energy converter then and be discharged into oil reservoir, the reservoir geology structure is handled, realize the growth of oil well output with shock wave.And under the assurance of outer cover intensity, expand the controller chamber as far as possible, to increase the gas to chamber amount, delay the decline of gas and insulator, to increase the working life of controller along the dielectric strength of face.
Whole device of the present utility model comprises: upper/lower electrode, insulator and termination up and down up and down, wherein upper/lower electrode adopts cylindrical large tracts of land structure, be separately positioned on the inner chamber of two insulators up and down, up and down the outside of insulator fixes with two terminations up and down respectively, and connect into an integral body by air chamber, utilize broad-area electrode and force the electric field distortion of subregion to realize many breakdown points or many arc channel, it is aging to reduce electrode erosion and gas, guarantees the stable of control threshold value.
Above-mentioned energy controller, wherein said top electrode is made up of the top electrode seat and the cartridge that powers on, and bottom electrode is made up of lower electrode holder and bottom electrode head, and employing is riveted and is connected between each electrode tip and the electrode body.
Above-mentioned energy controller has square annulus groove on the wherein said cartridge that powers on, to force electric field distortion, stable control threshold value.
Above-mentioned energy controller, wherein said two electrode tip holders up and down adopt stainless steel material, and two electrode tips adopt the Cu-W alloy material up and down.
Above-mentioned energy controller, wherein said up and down two terminations be respectively by the fluorubber pad in the insulator rear end, and insulator is held out against two ends at air chamber.
Above-mentioned oil well controller, convex-concave structure is all adopted on the wherein said surface of two insulators up and down, increases the creepage distance of insulator surface.
Above-mentioned energy controller is with cushion pad on wherein said up and down two insulators; Sealing ring on being provided with axially between upper end and the air chamber is provided with axial lower seal between lower end and air chamber, to improve the water sealing property under high temperature and the high hydraulic pressure.
The utility model has effectively reduced the ablation of electrode material under big electric current owing to adopt the electrode of large tracts of land and ablation resistant material, has improved the threshold stability of controller under big electric current; Owing to adopt the structure of offering cannelure in the electrode surface specific region, make device disperse the breakdown point on the electrode, and might form multichannel simultaneously in repetition rate pressure in service; Owing between termination and air chamber, be provided with axial restraint sealing ring is arranged in addition, solved the water-stop problem under high temperature and the high hydraulic pressure.Experiment showed, the utility model can be under the 50kA electric current steady operation 3000 times, realize energy control to 4.5kJ.
Description of drawings
Fig. 1 is overall structure figure of the present utility model;
Fig. 2 is upper electrode arrangement figure of the present utility model;
Fig. 3 is lower electrode arrangement figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
With reference to Fig. 1, the utility model comprises top electrode 4, bottom electrode 5, last insulator 2, following insulator 6, upper end 1, lower end 7.Top electrode 4 is made up of the top electrode seat 11 and the cartridge 12 that powers on, as shown in Figure 2.Bottom electrode 5 is made up of lower electrode holder 13 and bottom electrode head 14, as shown in Figure 3.Adopt riveted joint to be connected between each electrode tip and the electrode pedestal.Top electrode 4 all adopts cylindrical large tracts of land structure with bottom electrode 5, and is separately positioned on the inner chamber of insulator 2 and following insulator 6.The outside of insulator is fixing with upper end 1 and lower end 7 respectively up and down, and connects into an integral body by air chamber 3.
Because controller of the present utility model is a kind of special self breakdown gas spark switch, isolating the accumulation of energy stage, top electrode 4 is a high potential, and shell is a zero potential, and bottom electrode 5 is unsettled.Before and after the controller closure, the Electric Field Distribution of upper/lower electrode and electrode gap is inconsistent, and is mutation process, thereby the insulation property of controller during accumulation of energy are design basiss of controller.The surface design that for this reason will go up insulator 2 and following insulator 6 becomes convex-concave structure, to increase the creepage distance of insulator surface, and select for use polytetrafluoroethylene as the insulator material, to guarantee that in the down-hole insulator mechanical strength does not subtract under 150 ℃ the high temperature, consistency, insulation property do not descend.Owing under uniform electric field, be to conduct big electric current by arc channel during the controller conducting, the large-current electric arc will cause that to the ablation of electrode surface the roughness of electrode surface changes, and the microscopic field enhancer increases, and directly causes controlling the decline of threshold value.The utility model adopts and has the wide and dark square annulus groove 15 of 2mm that respectively is on electrode tip 12 surfaces of top electrode for this reason, as shown in Figure 2.The field distortion that this groove 15 is forced on slot wedges is controlled at breakdown point at the edge of groove.Adopt broad-area electrode that the possibility that forms many arc channel is also arranged in addition, when forming many arc channel, can alleviate of the ablation of single electric arc electrode surface.
Because controller will be worked in one-stop operation 3～5 hours, rerun 500～800 times, made the working gas in the gas spark switch constantly breakdown, its insulation property are constantly aging, add powerful operating current, can cause the decline rapidly of switch work.Outside diameter control with entire controller is 102mm for this reason, the maximum 92mm of internal diameter, and on last insulator 2 and following insulator 6, being with fluorubber pad 8a and 8b respectively, the cushioning effect by this fluorubber pad will go up insulator 2 and following insulator 6 and hold out against two ends at air chamber 3.And be provided with between upper end 1 and the air chamber 3 and axially go up sealing ring 9, be provided with axial lower seal 10 between lower end 7 and the air chamber 3.
Because the puncture voltage of gas gap is relevant with gap length, gaseous species and gaseous state.Can setting of the gas breakdown voltage of general control threshold value by empirical equation:
In the formula, d is the gas gap distance, the cm of unit; δ is the gas relative density, and δ=2.9P/T, P are gas pressure, and the kPa of unit, T are gas absolute temperature unit K.
Gas is sealed in the cavity of sealing in the gas switch, and its molal quantity remains unchanged, and promptly switch is constant in the relative density of the air of aboveground and down-hole, in the laboratory or the puncture voltage of aboveground setting can not change.When correspondence control threshold value was 30kV, it is adjustable that the switch electrode clearance distance is chosen at 80～12mm.When controller gas spark switch puncture voltage is chosen for 25～30kV, the urceolus outer pressure resistance is 50MPa, and under 50MPa, realize a whole set of and with the water-stop of accumulator, energy converter.
Influence the variation of controller control threshold value in order to reduce because of installation accuracy causes electrode distance to change, the outside diameter control of entire controller is 102mm, the maximum 92mm of internal diameter.Interior electrode adopts stainless steel, and electrode tip adopts the W-Cu alloy.Electrode diameter is controlled to be Φ 25mm, has diameter 14/18mm on the high-tension electricity cartridge, and the cannelure of dark 2mm is with stable control threshold value.Two distance between electrodes are 14mm to the maximum, adopt the standard pad of minimum 0.5mm to regulate distance between electrodes to reach the effect of conditioning controller threshold value between electrode bottom and insulator.
The upper end 1 of this controller is all taked the standard interface identical with accumulator, the energy converter of electrical pulse device with lower end 7, is installed on the electrical pulse device, insert 4000 meters under water dark.During work, when accumulation of energy reaches rapid closing when threshold value is set, the electric energy in the conduction accumulator is given energy converter, realizes the amplification of pulse power.
Claims (8)
1. the energy controller of one kind high cumulative large power, electrically pulser, comprise upper/lower electrode, insulator and termination up and down up and down, it is characterized in that top electrode (4) and bottom electrode (5) all adopt cylindrical large tracts of land structure, be separately positioned on the inner chamber of insulator (2) and following insulator (6), the outside of insulator is fixing with upper end (1) and lower end (7) respectively up and down, and connects into an integral body by air chamber (3).
2. according to claims 1 described energy controller, it is characterized in that top electrode (4) is made up of the top electrode seat (11) and the cartridge (12) that powers on, bottom electrode (6) is made up of lower electrode holder (13) and bottom electrode head (14), adopts to rivet between each electrode tip and the electrode tip holder to be connected.
3. according to claims 2 described energy controllers, have square annulus groove (15) on the cartridge (12) that it is characterized in that powering on, with stable control threshold value.
4. according to claims 2 described energy controllers, it is characterized in that upper/lower electrode seat (11) and (13) employing stainless steel material, the Cu-W alloy material is adopted in power-on and power-off cartridge (12) and (14).
5. according to claims 1 described energy controller, it is characterized in that the distance between upper/lower electrode (4) and (6) is 14mm to the maximum, corresponding control threshold value is 30kV.
6. according to claims 1 described energy controller, it is characterized in that upper end (1) and lower end (7) respectively and (8b) by fluorubber pad (8a), respectively insulator (2) and (6) are held out against two ends in air chamber (3).
7. according to claims 1 described energy controller, it is characterized in that convex-concave structure is all adopted on the surface of insulator (2) and following insulator (6), increase the creepage distance of insulator surface.
8. according to claims 1 described energy controller, it is characterized in that being provided with between upper end (1) and the air chamber (3) and axially go up sealing ring (9), be provided with axial lower seal (10.) between lower end (7) and the air chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200290517U CN201191706Y (en) | 2008-05-08 | 2008-05-08 | Energy controller for high energy-cumulating large power electric impulse apparatus |
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| CNU2008200290517U CN201191706Y (en) | 2008-05-08 | 2008-05-08 | Energy controller for high energy-cumulating large power electric impulse apparatus |
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| CN201191706Y true CN201191706Y (en) | 2009-02-04 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958513A (en) * | 2010-09-03 | 2011-01-26 | 华中科技大学 | Manufacturing method of gas spark switch electrode holder |
| CN102324333A (en) * | 2011-06-03 | 2012-01-18 | 西北核技术研究所 | Prepulse switch for isolating waterline from oil line |
| CN102522698A (en) * | 2011-12-06 | 2012-06-27 | 西安交通大学 | Rodlike three-electrode high-energy pulse discharge switch under vacuum environment |
| CN106761646A (en) * | 2016-12-30 | 2017-05-31 | 北京百恒达石油技术有限公司 | Shock wave makes seam apparatus and system |
| CN109973052A (en) * | 2019-03-25 | 2019-07-05 | 西安闪光能源科技有限公司 | It is a kind of multistage energy storage controllably impact wave generation device |
| CN109973065A (en) * | 2019-03-20 | 2019-07-05 | 南京帕尔斯电气科技有限公司 | A kind of high cumulative electrical pulse blocking removing electrode assembly and method for removing blockage |
| CN110663290A (en) * | 2017-05-25 | 2020-01-07 | 马自达汽车株式会社 | Pulse energy generating device |
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
| CN111101915A (en) * | 2019-11-15 | 2020-05-05 | 中国石油大学(北京) | Plasma generating device, fracturing system and fracturing method |
| CN114884041A (en) * | 2022-04-07 | 2022-08-09 | 西北核技术研究所 | Bipolar pneumatic high-voltage high-power isolation discharge protection device |
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2008
- 2008-05-08 CN CNU2008200290517U patent/CN201191706Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958513A (en) * | 2010-09-03 | 2011-01-26 | 华中科技大学 | Manufacturing method of gas spark switch electrode holder |
| CN102324333A (en) * | 2011-06-03 | 2012-01-18 | 西北核技术研究所 | Prepulse switch for isolating waterline from oil line |
| CN102324333B (en) * | 2011-06-03 | 2014-05-07 | 西北核技术研究所 | Prepulse switch for isolating waterline from oil line |
| CN102522698A (en) * | 2011-12-06 | 2012-06-27 | 西安交通大学 | Rodlike three-electrode high-energy pulse discharge switch under vacuum environment |
| CN102522698B (en) * | 2011-12-06 | 2013-04-17 | 西安交通大学 | Rodlike three-electrode high-energy pulse discharge switch under vacuum environment |
| CN106761646A (en) * | 2016-12-30 | 2017-05-31 | 北京百恒达石油技术有限公司 | Shock wave makes seam apparatus and system |
| CN110663290B (en) * | 2017-05-25 | 2022-01-11 | 马自达汽车株式会社 | Pulse energy generating device |
| CN110663290A (en) * | 2017-05-25 | 2020-01-07 | 马自达汽车株式会社 | Pulse energy generating device |
| CN109973065A (en) * | 2019-03-20 | 2019-07-05 | 南京帕尔斯电气科技有限公司 | A kind of high cumulative electrical pulse blocking removing electrode assembly and method for removing blockage |
| CN109973052A (en) * | 2019-03-25 | 2019-07-05 | 西安闪光能源科技有限公司 | It is a kind of multistage energy storage controllably impact wave generation device |
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
| CN111101915A (en) * | 2019-11-15 | 2020-05-05 | 中国石油大学(北京) | Plasma generating device, fracturing system and fracturing method |
| CN114884041A (en) * | 2022-04-07 | 2022-08-09 | 西北核技术研究所 | Bipolar pneumatic high-voltage high-power isolation discharge protection device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN GUANTONG ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHAANXI WEIXUN PETROLEUM TECHNOLOGY CO., LTD. Effective date: 20110413 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 710075 TOWER A, 8/F, WESTERN POWER INTERNATIONAL BUSINESS CENTER, NO. 66, HUZHU ROAD, XI AN CITY, SHAANXI PROVINCE TO: 710075 NO. 1-8-10801, WANGZUO MODERN CITY, TANGYAN ROAD, HIGH-TECH. ZONE, XI AN CITY, SHAANXI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110413 Address after: 710075 Shaanxi high tech Zone in Xi'an City, Tang Yan Mong block modern city 1-8-10801 No. Patentee after: Xi'an Guangtong Energy Technology Co., Ltd. Address before: 8 Building A, building 66, West Power International Business Center, No. 710075 Huzhu Road, Shaanxi, Xi'an Patentee before: Shaanxi Weixun Petroleum Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: SHAANXI WEIXUN PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XI AN GUANTONG ENERGY TECHNOLOGY CO., LTD. Effective date: 20121012 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121012 Address after: 8 Building A, building 66, West Power International Business Center, No. 710075 Huzhu Road, Shaanxi, Xi'an Patentee after: Shaanxi Weixun Petroleum Technology Co., Ltd. Address before: 710075 Shaanxi high tech Zone in Xi'an City, Tang Yan Mong block modern city 1-8-10801 No. Patentee before: Xi'an Guangtong Energy Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20150508 |
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| EXPY | Termination of patent right or utility model |