CN203387767U - Irradiation linear accelerator electronic gun - Google Patents
Irradiation linear accelerator electronic gun Download PDFInfo
- Publication number
- CN203387767U CN203387767U CN201320493528.8U CN201320493528U CN203387767U CN 203387767 U CN203387767 U CN 203387767U CN 201320493528 U CN201320493528 U CN 201320493528U CN 203387767 U CN203387767 U CN 203387767U
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- China
- Prior art keywords
- electron gun
- grid assembly
- accelerator
- linear accelerator
- electronic gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an irradiation linear accelerator electronic gun. The electronic gun comprises an electronic gun housing and a cathode grid assembly arranged inside the electronic gun housing. The cathode grid assembly comprises a cathode assembly and a grid assembly. One end of the electronic gun housing is provided with a metal flange connected with an accelerator in a sealing way through an oxygen-free copper sealing ring. The irradiation linear accelerator electronic gun which changes the docking structure of an electronic gun and the accelerator and adopts a connection means of the metal flange sealed by the oxygen-free copper sealing ring can achieve convenient and rapid electronic gun replacement. A conventional way to directly replace an accelerating tube is changed. The cost is lowered. A waste is prevented. Product benefits are improved.
Description
Technical field
The utility model relates to the irradiation linear accelerator, particularly irradiation linear accelerator electron gun.
Background technology
The irradiation linear accelerator is the core component for the irradiation apparatus to sterilizations such as food and utensils.Domestic irradiation apparatus all depends on mostly from external import, and the equipment price costliness only has few scientific research institutions to introduce and starts development.In order to bring into play the greatest benefit of equipment, the irradiation linear accelerator is all generally continuous operation, and equipment often stops one minute, will bring no small economic loss.But the irradiation linear accelerator is all that arranged certain useful life, be mainly to be determined by the cathode life in accelerator.When the cathode life of irradiation linear accelerator expires, due to the restriction of connected mode and cathode grid assembly and the housing connected mode of electron gun and accelerator, need directly to change accelerating tube, price is very expensive, can cause cost increase and unnecessary waste.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, when the cathode life that is provided at accelerator expires, can directly change the irradiation linear accelerator electron gun of negative electrode or electron gun.
To achieve these goals, the technical solution adopted in the utility model is:
This irradiation linear accelerator electron gun comprises the electron gun housing and is located at the cathode grid assembly in the electron gun housing that described cathode grid assembly comprises cathode assembly and grid assembly; Described electron gun housing one end is provided with the metal flange be tightly connected by the oxygen-free copper sealing ring with accelerator.
Be provided with the base that cathode grid assembly is installed in described electron gun housing, described base is connected with the conically shaped in being located at described electron gun housing; Be set with the briquetting be connected with described base outside described cathode grid assembly, between described briquetting and described base, be provided with silver-colored sealing ring.
Described briquetting and described base removably connect.
Described sealing ring is circular ring structure.
Be provided with the anode be connected with the accelerator cavity on described metal flange.
The utility model has the advantage of: this irradiation linear accelerator electron gun, changed the docking structure of electron gun and accelerating tube, the form that adopts the metal flange of oxygen-free copper sealing ring sealing to connect, can conveniently change.Can complete by changing electron gun the reparation of accelerator in the accelerating tube life-span to after date.The connected mode of employing fine silver sealing ring between cathode grid assembly and rifle shell simultaneously, can only change the reparation that cathode grid assembly in electron gun completes accelerator under intact prerequisite at the electron gun housing.This irradiation linear accelerator electron gun, changed the mode of traditional direct replacing accelerating tube, reduced cost, stopped waste, improved the product benefit.
The accompanying drawing explanation
The content of below each width accompanying drawing of the utility model specification being expressed and the mark in figure are briefly described:
The structural representation that Fig. 1 is this irradiation linear accelerator electron gun of the utility model.
The structural representation of the electron gun housing that Fig. 2 is this irradiation linear accelerator electron gun of the utility model.
The structural representation of the cathode grid assembly that Fig. 3 is this irradiation linear accelerator electron gun of the utility model.
The structural representation that Fig. 4 is the grid on Fig. 3 cathode grid assembly.
Mark in above-mentioned figure is:
1, electron gun housing, 2, cathode grid assembly, 3, briquetting, 4, silver-colored sealing ring, 5, screw, 6, metal flange, 7, anode, 8, control the utmost point, 9, base, 10, conically shaped, 11, insulation assembly, 12, grid assembly, 13, cathode assembly.
Embodiment
Below contrast accompanying drawing, by the description to optimum embodiment, embodiment of the present utility model is described in further detail.
As shown in Figures 1 and 2, this irradiation linear accelerator electron gun, comprise electron gun housing 1, be located at the interior cathode grid assembly 2 of electron gun housing 1, be enclosed within the briquetting 3 on cathode grid assembly 2; Establish the metal flange 6 be tightly connected by the oxygen-free copper sealing ring with accelerator at electron gun housing 1 one ends, metal flange 6 is CF-100 standard flanges.
Establish conically shaped 10 in electron gun housing 1, at electron gun housing 1 other end, establish insulation assembly 11, conically shaped 10 is connected with the base 9 that connects cathode grid assembly 2; Briquetting 3 is detachably connected on base 9 by screw 5, is provided with silver-colored sealing ring 4 between briquetting 3 and base 9; Briquetting 3, cathode grid assembly 2, sealing ring 4 and electron gun housing 1 link together by screw 5.
Be provided with anode 7 on metal flange 6, anode 7 is connected by Laser Welding with metal flange 6.
Be provided with the base 9 that connects cathode grid assembly on conically shaped 10, base 9 and conically shaped 10 complete the vacuum tight welding by soldering.
Cathode grid assembly 2 is connected with base 9 one ends, is provided with on base 9 other ends and controls the utmost point 8, controls the utmost point 8 and is connected by Laser Welding with base 9.
As shown in Figure 3, at the inner set cathode grid assembly 2 of electron gun housing 1, contain emitter cathodes, formed by grid assembly 12 and cathode assembly 13.
As shown in Figure 4, the grid in grid assembly 12 is plane, and thickness is 0.05mm, and grid silk width is 0.03mm, and centre is covered with the square hole of 0.15mm * 0.15mm.
Negative electrode in cathode assembly 13 is plane, the filmed impregnated barium-tungsten cathode that diameter is Φ 8.25mm.
This irradiation accelerator electron gun, be connected with the cavity of accelerator by anode 7, guaranteed the concentricity of electron gun and cavity; Then guaranteed the vacuum-tightness of accelerating tube housing by metal flange 6 and oxygenless copper washer.
This irradiation linear accelerator electron gun, directly change to after date the problem that accelerating tube causes significantly increasing of cost and unnecessary waste for the irradiation accelerator life-span in prior art, changed the docking structure of electron gun and accelerator, adopt the form of metal flange 6 connections of oxygen-free copper sealing ring sealing, cathode grid assembly 2 and electron gun housing 1 adopt the connected mode of fine silver sealing ring 4 simultaneously.Can complete by changing electron gun the reparation of accelerator in the accelerator life-span to after date.Can only change the reparation that cathode grid assembly in electron gun completes accelerator at the electron gun housing under intact prerequisite, save cost, avoid the wasting of resources.
The utility model specific implementation is not subject to the restrictions described above, as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out, all within protection range of the present utility model.
Claims (5)
1. irradiation linear accelerator electron gun, comprise the electron gun housing and be located at the cathode grid assembly in the electron gun housing, and described cathode grid assembly comprises cathode assembly and grid assembly; It is characterized in that: described electron gun housing one end is provided with the metal flange be tightly connected by the oxygen-free copper sealing ring with accelerator.
2. irradiation linear accelerator electron gun as claimed in claim 1 is characterized in that: be provided with the base that cathode grid assembly is installed in described electron gun housing, described base and be located at the interior conically shaped of described electron gun housing and be connected; Be set with the briquetting be connected with described base outside described cathode grid assembly, between described briquetting and described base, be provided with silver-colored sealing ring.
3. irradiation linear accelerator electron gun as claimed in claim 2, it is characterized in that: described briquetting and described base removably connect.
4. as claim 1 or 2 or 3 described irradiation linear accelerator electron guns, it is characterized in that: described sealing ring is circular ring structure.
5. irradiation linear accelerator electron gun as claimed in claim 4, is characterized in that: be provided with the anode be connected with the accelerator cavity on described metal flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493528.8U CN203387767U (en) | 2013-08-13 | 2013-08-13 | Irradiation linear accelerator electronic gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493528.8U CN203387767U (en) | 2013-08-13 | 2013-08-13 | Irradiation linear accelerator electronic gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387767U true CN203387767U (en) | 2014-01-08 |
Family
ID=49876212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320493528.8U Expired - Fee Related CN203387767U (en) | 2013-08-13 | 2013-08-13 | Irradiation linear accelerator electronic gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717823A (en) * | 2015-03-30 | 2015-06-17 | 同方威视技术股份有限公司 | Insulating and sealing structure and electronic curtain accelerator |
| CN104735896A (en) * | 2015-03-30 | 2015-06-24 | 同方威视技术股份有限公司 | Power source insulating equipment and electronic curtain accelerator |
-
2013
- 2013-08-13 CN CN201320493528.8U patent/CN203387767U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717823A (en) * | 2015-03-30 | 2015-06-17 | 同方威视技术股份有限公司 | Insulating and sealing structure and electronic curtain accelerator |
| CN104735896A (en) * | 2015-03-30 | 2015-06-24 | 同方威视技术股份有限公司 | Power source insulating equipment and electronic curtain accelerator |
| CN110167250A (en) * | 2015-03-30 | 2019-08-23 | 同方威视技术股份有限公司 | Insulation and sealing structure and electrocurtain accelerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20210813 |