CN101752794B - Control method of consistency and stability of firing voltage of ignition discharge tube - Google Patents
Control method of consistency and stability of firing voltage of ignition discharge tube Download PDFInfo
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- CN101752794B CN101752794B CN201010102433XA CN201010102433A CN101752794B CN 101752794 B CN101752794 B CN 101752794B CN 201010102433X A CN201010102433X A CN 201010102433XA CN 201010102433 A CN201010102433 A CN 201010102433A CN 101752794 B CN101752794 B CN 101752794B
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Abstract
The invention belongs to the field of gas discharge, particularly to a control method of the consistency and the stability of a firing voltage of an ignition discharge tube, which comprises the following steps of: controlling the distance between discharge tube electrodes and enabling the discharge tubes which are discharged and charged in the same batch to have an approximate value d; in the discharge and charge working procedures, simultaneously aging tens of discharge tubes in the same batch by adopting an alternating-current high-voltage accelerated aging method, wherein the charge pressure when in aging is only 1/5-1/4 of the normally required pressure of the discharge tubes; and carrying out a plurality of times of circular alternating-current high-voltage high-frequency aging and immediately discharging a working gas after each time of aging is finished. By adopting the method, long-time aging is not needed, secondary screening is also not needed, so that the error range of the firing voltage of a plurality of discharge tubes and the shift range of the firing voltage of a single discharge tube can both be controlled within 1 percent of a nominal value.
Description
[technical field]
The invention belongs to field of gas discharge, particularly the control method of the consistency of firing voltage of ignition discharge tube and stability.
[background technology]
Ignition discharge tube (hereinafter to be referred as discharge tube) is widely used in the ignition system of main equipments such as aero-engine, boiler, oil field.The ignition discharge tube of producing according to existing processes has following shortcoming: the firing voltage value stabilization property that at first is single discharge tube is bad, and the drift about 5% can appear in firing voltage in the course of the work; Next is that the firing voltage value consistency of a plurality of discharge tubes is bad, the same batch of discharge tube of producing, and the error range of its firing voltage all will reach 20%～40% of nominal value usually.In the ignition system in for example boiler, oil field etc., use above-described ignition discharge tube problem little, also can change at any time even break down, still the ignition system life-span is influenced to some extent; The discharge tube of using for the aero-engine ignition system does not then allow this type of phenomenon.
The way that solves at present stability problem is to carry out seasonedly, and seasoned is exactly the process that makes ignition discharge tube through after a while analog operation its performance parameter tended towards stability.Its process is after the inflatable and exhaust operation is accomplished, and makes discharge tube in the actual dc working circuit of simulation, work a period of time, and till its discharge voltage was stable, the seasoned time was generally 4～8 hours, has increased the production cycle greatly; And, do not have good way at present for consistency problem, and can only carry out postsearch screening to discharge tube according to firing voltage, this has increased cost greatly.Above situation all reflects a problem, and promptly existing discharge tube lacks desirable firing voltage stabilization technique.
[summary of the invention]
The technical issues that need to address of the present invention are to the deficiency of traditional processing technology, stabilization technique and its implementation of a kind of firing voltage of ignition discharge tube to be provided.
For realizing the present invention, the control method of the consistency of firing voltage of ignition discharge tube and stability may further comprise the steps:
A. measurement is treated the interelectrode distance value d of inflatable and exhaust ignition discharge tube and is classified, and picks out the ignition discharge tube with close d value and carries out inflatable and exhaust with criticizing;
B. in inflatable and exhaust operation process, adopt the ac high-voltage high-frequency to quicken seasoned method, the said ignition discharge tube of picking out is carried out simultaneously seasoned, carry out according to the following steps:
1) said ignition discharge tube is inserted inflatable and exhaust equipment, carry out exhaust according to common processes;
2) treat that vacuum degree reaches technological requirement after, close drain tap, charge into working gas then, the air pressure of said working gas is much smaller than the needed air pressure of the normal inflation of ignition discharge tube;
3) said ignition discharge tube is together in series with lead, two lead-in wires that will speed up seasoned equipment are then received the said ignition discharge tube circuit two ends that connect respectively, constitute the loop of a closure;
4) said ignition discharge tube is carried out seasoned 1min, open drain tap after the seasoned end immediately, institute's inflation body is discharged;
5) repeat above-mentioned 2)～4) step, circulate three times, treat last loop ends after, inflate and following pipe according to common processes, promptly obtain the ignition discharge tube that firing voltage consistency and stability all meet requirement of the present invention.
As the optimization of such scheme, said method step by step 2) in charge into working gas air pressure be 1/5～1/4 of the required air pressure of the normal inflation of ignition discharge tube.
Technical characterictic of the present invention also is in the steps A measurement to be treated that the method for the interelectrode distance value d of inflatable and exhaust ignition discharge tube is: for the discharge tube that adopts transparent shell; Accurately measure interelectrode distance d with instrument; And classify according to measured value, guarantee to have close d value with the discharge tube of batch inflatable and exhaust; Discharge tube for adopting opaque shell utilizes the discharge tube accessory size to calculate the d value, and the dimensional tolerance of controlling part through strictness can obtain a collection of ignition discharge tube with close d value.
The inventive method based on the theory and practice basis be: the crust Xing Dinglv that learns according to gas discharge, for the parallel double plate electrode system of discharge tube, under the situation that other conditions remain unchanged, its firing voltage U
SIt is the function of interior working gas air pressure P of pipe and interelectrode distance d product; According to the rule that sums up in the production practices, electrode in the discharge tube and gas a period of time of must working just can reach stable state.The antihunt means of firing voltage of ignition discharge tube comprise the consistency control technology of a plurality of discharge tube firing voltages, and the Stability Control of single discharge tube firing voltage technology.The consistency control technology of wherein a plurality of discharge tube firing voltages is through control discharge tube interelectrode distance, makes the discharge tube with a collection of inflatable and exhaust have close interelectrode distance value.The Stability Control technology of single discharge tube firing voltage; Be through reducing the blowing pressure when seasoned, at this moment electrode evapotranspires more easily, thereby quickens seasoned process; Shorten the seasoned time, when said air pressure be the required air pressure of normal inflation 1/5～1/4 the time reach optimum efficiency.Immediately institute's inflation body being discharged after the seasoned end, is to produce impurity in order to discharge as early as possible in the seasoned process, avoids impurity to adsorb once more.Ac high-voltage through several circulations is high-frequency seasoned fast, at once working gas is discharged after each seasoned end, promptly obtains satisfactory ignition discharge tube.
The invention has the advantages that: adopt above new technology; Need not carry out long-time aging; Need not carry out postsearch screening yet, can make the firing voltage error range of a plurality of discharge tubes, and the range of drift of single discharge tube firing voltage all be controlled at nominal value 1% in.
[embodiment]
The control method of the consistency of firing voltage of ignition discharge tube and stability may further comprise the steps:
A. make the discharge tube with a collection of inflatable and exhaust have close interelectrode distance value: for the discharge tube that adopts the glass shell, the fusing degree of glass is different during owing to the homogeneous tube sealing-in, so interelectrode distance changes greatly.The transparency of glass capable of using adopts instruments such as projecting apparatus, universal tool microscope, accurately measures interelectrode distance d, and classifies according to measured value, guarantees to have close d value with batch discharge tube of inflation with the method.
For the discharge tube that adopts ceramic cartridge, its shell is opaque, directly between measurement electrode apart from d.But because this type of discharge tube adopts the mode sealing-in homogeneous tube of soldering, therefore utilize the size of discharge tube part can calculate d value, so the dimensional tolerance of controlling part through strictness is the interelectrode distance after the may command soldering.
The Stability Control technology of B. single discharge tube firing voltage is embodied in the inflatable and exhaust operation, carries out according to the following steps:
1) tens of discharge tubes is inserted inflatable and exhaust equipment, carry out exhaust according to common processes;
2) treat that vacuum degree reaches technological requirement after, close drain tap, charge into working gas by 1/5～1/4 of the normal required air pressure of discharge tube then;
3) these tens of discharge tubes are together in series with lead, two lead-in wires that will speed up seasoned equipment are then received the discharge tube circuit two ends that connect respectively, constitute the loop of a closure;
4) these tens of discharge tubes are carried out seasoned 1min, open drain tap after the seasoned end immediately, institute's inflation body is discharged;
5) repeat above step 2)～4), carry out 3 circulations altogether;
6) treat last circulation after, inflate and pipe down according to common processes.
Step 2) the blowing pressure described in is 1/5～1/4 of a normal required air pressure, to be that electrode evapotranspires more easily when seasoned in order making, thereby to quicken seasoned process, shortens the seasoned time.
The seasoned equipment of acceleration described in the step 3) mainly is made up of voltage regulator and transformer, and voltage regulator is used to regulate the input voltage of transformer, by transformer output AC high pressure, carries out seasoned to discharge tube again.The transformer parameter that adopts in the practical implementation method of the present invention is: output voltage 15kV, power 300W; This kind of transformer approximately can satisfy the seasoned needs of 5 ignition discharge tubes, if then can carry out seasoned to tens of discharge tubes simultaneously several transformers connected in parallel uses.
Immediately institute's inflation body being discharged after the seasoned end described in the step 4), is to produce impurity in order to discharge as early as possible in the seasoned process, avoids impurity to adsorb once more.
Step 5) is described carries out 3 seasoned circulations, is in order impurity fully to be removed, to be made electrode state tend towards stability more.
More than the present invention has been carried out exemplary description; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method of the present invention design and technical scheme to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (2)
- The consistency of firing voltage of ignition discharge tube with stability control method, it is characterized in that taking following steps:A. measure the interelectrode distance value d of the discharge tube of treating inflatable and exhaust and classify, pick out ignition discharge tube with batch carrying out inflatable and exhaust with close d value;B. in inflatable and exhaust operation process, adopt the ac high-voltage high-frequency to quicken seasoned method, the said ignition discharge tube of picking out is carried out simultaneously seasoned, carry out according to the following steps:1) said ignition discharge tube is inserted inflatable and exhaust equipment, carry out exhaust according to common processes;2) treat that vacuum degree reaches technological requirement after, close drain tap, charge into working gas then, the air pressure of said working gas is 1/5～1/4 of the required air pressure of the normal inflation of ignition discharge tube;3) said ignition discharge tube is together in series with lead, two lead-in wires that will speed up seasoned equipment are then received the said ignition discharge tube circuit two ends that connect respectively, constitute the loop of a closure;4) said ignition discharge tube is carried out seasoned 1min, open drain tap after the seasoned end immediately, institute's inflation body is discharged;5) repeat above-mentioned 2)～4) step, circulate three times, treat last loop ends after, inflate and following pipe according to common processes, promptly obtain all satisfactory ignition discharge tube of firing voltage consistency and stability.
- The consistency of firing voltage of ignition discharge tube according to claim 1 with stability control method; It is characterized in that: in the said steps A measurement is treated that the method for the interelectrode distance value d of inflatable and exhaust ignition discharge tube is: for the discharge tube that adopts transparent shell; Accurately measure the d value with instrument, and classify according to measured value; Discharge tube for adopting opaque shell utilizes the discharge tube accessory size to calculate the d value, and the dimensional tolerance of controlling part through strictness can obtain a collection of ignition discharge tube with close d value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010102433XA CN101752794B (en) | 2010-01-29 | 2010-01-29 | Control method of consistency and stability of firing voltage of ignition discharge tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010102433XA CN101752794B (en) | 2010-01-29 | 2010-01-29 | Control method of consistency and stability of firing voltage of ignition discharge tube |
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| Publication Number | Publication Date |
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| CN101752794A CN101752794A (en) | 2010-06-23 |
| CN101752794B true CN101752794B (en) | 2012-07-18 |
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| CN201010102433XA Expired - Fee Related CN101752794B (en) | 2010-01-29 | 2010-01-29 | Control method of consistency and stability of firing voltage of ignition discharge tube |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101924000B (en) * | 2010-07-14 | 2013-05-15 | 安徽华东光电技术研究所 | Accurate control method of breakdown voltage of ignition discharge tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185556A (en) * | 1989-07-19 | 1993-02-09 | Yazaki Corporation | Gas-filled discharge tube |
| CN1192576A (en) * | 1997-03-01 | 1998-09-09 | 丁海年 | Improved discharge tube |
| CN201084697Y (en) * | 2007-08-03 | 2008-07-09 | 安徽华东光电技术研究所 | A high-energy ignition gas discharging tube |
| CN101477930A (en) * | 2009-01-22 | 2009-07-08 | 湖北汉光科技股份有限公司 | Inflating process for gas discharging tube |
-
2010
- 2010-01-29 CN CN201010102433XA patent/CN101752794B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185556A (en) * | 1989-07-19 | 1993-02-09 | Yazaki Corporation | Gas-filled discharge tube |
| CN1192576A (en) * | 1997-03-01 | 1998-09-09 | 丁海年 | Improved discharge tube |
| CN201084697Y (en) * | 2007-08-03 | 2008-07-09 | 安徽华东光电技术研究所 | A high-energy ignition gas discharging tube |
| CN101477930A (en) * | 2009-01-22 | 2009-07-08 | 湖北汉光科技股份有限公司 | Inflating process for gas discharging tube |
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| CN101752794A (en) | 2010-06-23 |
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