CN203015264U - Control system applied to accelerator valve - Google Patents
Control system applied to accelerator valve Download PDFInfo
- Publication number
- CN203015264U CN203015264U CN 201220622453 CN201220622453U CN203015264U CN 203015264 U CN203015264 U CN 203015264U CN 201220622453 CN201220622453 CN 201220622453 CN 201220622453 U CN201220622453 U CN 201220622453U CN 203015264 U CN203015264 U CN 203015264U
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- accelerator
- vacuum
- valve
- control system
- utility
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Abstract
The utility model discloses a control system applied to an accelerator valve. The control system applied to the accelerator valve mainly comprises an accelerator provided with a sector valve and a sensing device which is arranged on the accelerator and is used for measuring the vacuum degree of the accelerator. The control system applied to the accelerator valve further comprises a control mechanism which is connected with the sensing device. The control mechanism is connected with the sector valve on the accelerator. According to the utility model, the control system applied to the accelerator valve has the advantages of simple structure and reasonable design; a single chip microcomputer is used as a control core; automatic control of the sector valve is solved when the accelerator has vacuum leakage; loss is reduced when vacuum leakage happens; and at the same time, vacuum of other sectors can be protected, which is convenient for maintenance personnel to carry out targeted leakage detection and maintenance on a destructed sector, so that device loss and vacuum recovery time can be minimized.
Description
Technical field
The utility model relates to accelerator valve gate control field, specifically, is the control system that is applied to the accelerator valve.
Background technology
Existing accelerator is as BEPC II linear accelerator, formed by 200m, 56 joint accelerating tubes, totally 6 sections, the transducer that employing is comprised of cold rule (that is: cold cathode Penning gauge), supporting vacuum gauge is as the high vacuum measurement mechanism, can reflect fast, intuitively, accurately that the state of vacuum system, its final vacuum reach 2 ⅹ 104Pa.In conventional art, can adopt 8 transducers as vacuum measurement and the section valve protection of electron gun, each section.In actual application, because accelerator reaches 200m, microwave and vacuum device are many, and particularly higfh-tension ceramics spare is many, long operational time etc., when if ceramic crack occuring causing vacuum leak, if the section valve can not in time cut out, can make whole accelerator expose atmosphere within a few minutes, cause the damage of electron gun cathode grid assembly, klystron ceramic window, ionic pump, certainly, from the on-site manual valve-off of pinpointing the problems, the time does not allow yet.Therefore, reduce to occur the loss of vacuum leak, the utility model proposes a kind of each section vacuum of monitoring, in time the control system of autoshutdown section valve, reduced the loss of equipment greatly.
The utility model content
The purpose of this utility model is to provide the control system that is applied to the accelerator valve, adopts controlling organization, can in time automatically control the section valve of accelerator, reduces to occur the loss of vacuum leak, and the loss of equipment and vacuum are reduced recovery time.
The utility model is achieved through the following technical solutions: the control system that is applied to the accelerator valve, mainly by the accelerator that is provided with the section valve, be located at the sensing device of measuring its vacuum degree on accelerator and form, in actual application, because the length of accelerator is longer, when if ceramic crack occuring causing vacuum leak, take the mode of manual-lock section valve, plenty of time will certainly be delayed, therefore, the utility model also comprises the controlling organization that is connected with sensing device, and described controlling organization is connected on the section valve of accelerator.
Controlling organization described in the utility model comprises A/D converter, single-chip microcomputer and the relay that is connected successively, described A/D converter is connected on sensing device, described relay is connected with the section valve, it is control core that said structure adopts single-chip microcomputer, structure is very simple, described relay is multichannel SSR solid-state relay, can control the on off state of section valve, has the characteristics such as driving voltage is low, the photoelectricity isolation is anti-interference, the life-span is long.
described sensing device mainly is comprised of the cold rule (cold cathode Penning gauge) and the vacuum gauge that are connected successively, described cold rule are located on accelerator, described vacuum gauge is connected with A/D converter, in the utility model, cold rule are as vacuum transducer, act on accelerator and (comprise an electron gun, six sections are totally seven section valves) on, when the electronics of accelerating tube is robbed, when having the vacuum degree of a section to drop to set point in each section, degenerating of vacuum degree can make the analog signal level of vacuum gauge change, thereby send it in single-chip microcomputer by A/D converter.
For better realizing the utility model, described sensing device also comprises voltage follower, and described vacuum gauge is connected on A/D converter by voltage follower, have input impedance high, output impedance is low, high accuracy, can directly drive the I/O end of single-chip microcomputer, cut down the number of intermediate links.
Single-chip microcomputer described in the utility model is AT89C51, and programming is simple, adopts the universal programming mode to get final product, and is applicable to built-in applied system.
The utility model compared with prior art has the following advantages and beneficial effect:
(1) the utility model is reasonable in design; utilize single-chip microcomputer not only can the vacuum degree of accelerator to be detected; more realized the automatic control of accelerator section valve; loss in the time of can reducing accelerator generation vacuum leak; protect the vacuum of other section; the convenient for maintaining personnel can hunt leak and keep in repair for the section of a certain destruction with a definite target in view, make equipment loss and vacuum reduce to minimum recovery time.
(2) the utility model selects cold rule as vacuum sensor, can measure simultaneously 8 road signals, has strong interference immunity, precise control, real-time characteristics.
(3) the utility model is simple in structure, utilizes microcontroller embedded designing technique, can promote the use of in the accelerator art field.
Description of drawings
Fig. 1 theory diagram of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment:
The utility model proposes the control system that is applied to the accelerator valve; mainly by the accelerator that is provided with the section valve, be located at the sensing device of measuring its vacuum degree on accelerator and form; take BEPC II linear accelerator as example; in the prior art; it is comprised of 200m, 56 joint accelerating tubes; include an electron gun, six sections totally seven section valves, in conventional art, can adopt 8 transducers as vacuum measurement and the section valve protection of electron gun, each section.and in actual application, but the length due to accelerator is long, microwave and vacuum device are many, the factors such as long operational time, the crack of pottery on accelerator easily occurs, thereby cause vacuum leak, if take the mode of manual-lock section valve, plenty of time will certainly be delayed, therefore, the utility model also comprises the controlling organization that is connected with sensing device, controlling organization is connected on the section valve of accelerator, can realize the automatic control of accelerator section valve, loss in the time of not only can reducing accelerator generation vacuum leak, protect the vacuum of other section, more convenient maintenance personal can hunt leak and keep in repair for the section of a certain destruction with a definite target in view, make equipment loss and vacuum reduce to minimum recovery time.
As shown in Figure 1, controlling organization comprises A/D converter, single-chip microcomputer and the relay that is connected successively, and A/D converter is connected on sensing device, and relay is connected with the section valve.In said structure, adopt single-chip microcomputer as primary processor, can adopt AT89C51, it is a low-voltage, 8 single-chip microcomputers of high-performance CMOS, has the FLASH read-only program memory of 20K, the Random Access Data memory of 256K byte, uses MCS-51 command system, adopt the universal programming mode, be applicable to built-in applied system, in the utility model, structure is very simple.In actual application, A/D converter is sent to data on the data input port of single chip computer AT 89C51 (P1 interface), directly drive external circuit by data output (P0 interface) again, that is: relay, described relay is multichannel SSR solid-state relay, can control the on off state of section valve, have the characteristics such as driving voltage is low, the photoelectricity isolation is anti-interference, the life-span is long.
for better realizing said structure, as shown in Figure 1, sensing device is the high vacuum measurement mechanism, can be fast, intuitively, the state that accurately reflects vacuum system, its final vacuum reaches 2 ⅹ 104Pa, mainly formed by the cold rule (cold cathode Penning gauge) and the vacuum gauge that are connected successively, cold rule are located on accelerator, vacuum gauge is connected with A/D converter, in the utility model, cold rule are as vacuum transducer, act on accelerator and (comprise an electron gun, six sections are totally seven section valves) on, when the electronics of accelerating tube is robbed, when having the vacuum degree of a section to drop to set point in each section, degenerating of vacuum degree can make the analog signal level of vacuum gauge change, thereby send it in single-chip microcomputer by A/D converter.As shown in Figure 1, sensing device also comprises voltage follower, and vacuum gauge is connected on A/D converter by voltage follower, has defeated people's impedance high, and output impedance is low, and high accuracy can directly drive the I/O end of single-chip microcomputer, cuts down the number of intermediate links.
The utility model is simple in structure; reasonable in design; the employing single-chip microcomputer is control core; the automatic control of section valve when having solved accelerator generation vacuum leak; loss when having reduced vacuum leak simultaneously, has more been protected the vacuum of other section; the convenient for maintaining personnel can hunt leak and keep in repair for the section of a certain destruction with a definite target in view, make equipment loss and vacuum reduce to minimum recovery time.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment are within all falling into protection range of the present utility model.
Claims (5)
1. be applied to the control system of accelerator valve, mainly by the accelerator that is provided with the section valve, be located at the sensing device of measuring its vacuum degree on accelerator and form, it is characterized in that: also comprise the controlling organization that is connected with sensing device, described controlling organization is connected on the section valve of accelerator.
2. the control system that is applied to the accelerator valve according to claim 1, it is characterized in that: described controlling organization comprises A/D converter, single-chip microcomputer and the relay that is connected successively, described A/D converter is connected on sensing device, and described relay is connected with the section valve.
3. the control system that is applied to the accelerator valve according to claim 2, it is characterized in that: described sensing device mainly is comprised of the cold rule and the vacuum gauge that are connected successively, described cold rule are located on accelerator, and described vacuum gauge is connected with A/D converter.
4. the control system that is applied to the accelerator valve according to claim 3, it is characterized in that: described sensing device also comprises voltage follower, described vacuum gauge is connected on A/D converter by voltage follower.
5. the control system that is applied to the accelerator valve according to claim 4, it is characterized in that: described single-chip microcomputer is AT89C51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622453 CN203015264U (en) | 2012-11-22 | 2012-11-22 | Control system applied to accelerator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622453 CN203015264U (en) | 2012-11-22 | 2012-11-22 | Control system applied to accelerator valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015264U true CN203015264U (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220622453 Expired - Fee Related CN203015264U (en) | 2012-11-22 | 2012-11-22 | Control system applied to accelerator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015264U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387324A (en) * | 2017-08-08 | 2019-02-26 | 上海卓亚医疗科技有限公司 | A kind of accelerator vacuum level real-time monitoring system |
| GB2577858A (en) * | 2018-08-16 | 2020-04-15 | Elekta ltd | Method for use with a radiotherapy device |
| CN114321720A (en) * | 2022-01-06 | 2022-04-12 | 上海三井光中真空设备股份有限公司 | Accelerator beam line quick valve control system |
-
2012
- 2012-11-22 CN CN 201220622453 patent/CN203015264U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387324A (en) * | 2017-08-08 | 2019-02-26 | 上海卓亚医疗科技有限公司 | A kind of accelerator vacuum level real-time monitoring system |
| GB2577858A (en) * | 2018-08-16 | 2020-04-15 | Elekta ltd | Method for use with a radiotherapy device |
| GB2577858B (en) * | 2018-08-16 | 2021-06-16 | Elekta ltd | Method for use with a radiotherapy device |
| US11565132B2 (en) | 2018-08-16 | 2023-01-31 | Elekta Limited | Method for use with a radiotherapy device |
| CN114321720A (en) * | 2022-01-06 | 2022-04-12 | 上海三井光中真空设备股份有限公司 | Accelerator beam line quick valve control system |
| CN114321720B (en) * | 2022-01-06 | 2023-12-19 | 上海三井光中真空设备股份有限公司 | Fast valve control system of accelerator beam line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131122 |