阅读说明：本技术 为电子加速器提供氮气的供气装置 (Gas supply device for supplying nitrogen to electron accelerator ) 是由 张宇蔚 乌恩奇 于 2019-08-23 设计创作，主要内容包括：本发明涉及一种为电子加速器提供氮气的供气装置。它包括电子加速器和制氮机,所述电子加速器含有屏蔽筒,屏蔽筒内有用于将其内腔分隔成真空室和辐照室的隔板,隔板上有通孔,真空室内有束流引出窗,束流引出窗下端呈密封状穿过通孔后伸入辐照室内。束流引出窗下端有用于对其钛箔进行冷却的吹嘴,所述吹嘴和辐照室分别通过第一阀门和第二阀与制氮机的出口相通。其特点是还包括控制器和传感器,所述传感器位于辐照室内。第一阀和第二阀均为电磁阀,所述制氮机、第一阀、第二阀和传感器均借助导线与控制器相连。采用这种装置,能保证被辐照产品质量,避免氮气浪费,降低生产成本。适用于为电子加速器的吹嘴和辐照室提供氮气。(The invention relates to a gas supply device for providing nitrogen for an electron accelerator. The electron accelerator comprises an electron accelerator and a nitrogen generator, wherein the electron accelerator comprises a shielding cylinder, a partition plate for dividing an inner cavity of the shielding cylinder into a vacuum chamber and an irradiation chamber is arranged in the shielding cylinder, a through hole is formed in the partition plate, a beam extraction window is arranged in the vacuum chamber, and the lower end of the beam extraction window penetrates through the through hole in a sealed manner and then extends into the irradiation chamber. And the lower end of the beam flow leading-out window is provided with a blowing nozzle for cooling the titanium foil, and the blowing nozzle and the irradiation chamber are respectively communicated with an outlet of the nitrogen making machine through a first valve and a second valve. The device is characterized by further comprising a controller and a sensor, wherein the sensor is located in the irradiation chamber. The first valve and the second valve are electromagnetic valves, and the nitrogen generator, the first valve, the second valve and the sensor are all connected with the controller by virtue of leads. By adopting the device, the quality of the irradiated product can be ensured, the waste of nitrogen is avoided, and the production cost is reduced. The nitrogen supply device is suitable for supplying nitrogen to a blowing nozzle and an irradiation chamber of the electron accelerator.)

1. The gas supply device for providing nitrogen gas for the electron accelerator comprises the electron accelerator and a nitrogen making machine, wherein the electron accelerator comprises a shielding cylinder, a partition plate for dividing an inner cavity of the shielding cylinder into a vacuum chamber and an irradiation chamber is arranged in the shielding cylinder, a through hole is formed in the partition plate, a beam extraction window is arranged in the vacuum chamber, and the lower end of the beam extraction window penetrates through the through hole in a sealing manner and then extends into the irradiation chamber; the lower end of the beam flow leading-out window is provided with a blowing nozzle for cooling the titanium foil of the beam flow leading-out window, and the blowing nozzle and the irradiation chamber are respectively communicated with an outlet of the nitrogen making machine through a first valve and a second valve; the method is characterized in that: the device also comprises a controller and a sensor, wherein the sensor is positioned in the irradiation chamber; the first valve and the second valve are both electromagnetic valves, and the nitrogen making machine, the first valve, the second valve and the sensor are all connected with the controller by means of leads.

2. A gas supply apparatus for supplying nitrogen gas to an electron accelerator as claimed in claim 1, wherein: the side wall of the vacuum chamber and the partition plate are provided with first pipe holes, the first pipe holes are internally provided with air pipes, and two ends of each air pipe are respectively connected with the first valve and the blowing nozzle.

3. A gas supply apparatus for supplying nitrogen gas to an electron accelerator as claimed in claim 1, wherein: the wall of the cylinder where the irradiation chamber is located is provided with a second pipe hole, the second pipe hole is internally provided with a gas pipe joint, and the irradiation chamber is communicated with the nitrogen making machine through the gas pipe joint and a second valve.

4. a gas supply apparatus for supplying nitrogen gas to an electron accelerator as claimed in claim 3, wherein: the two second pipe holes are respectively positioned on the wall of the cylinder on the opposite side of the irradiation chamber, the two pipe holes are internally provided with a pipe joint, and the nitrogen making machine is communicated with the irradiation chamber through a three-way pipe, a gas pipe and the two pipe joints.

Technical Field

The invention relates to a nitrogen conveying mechanism. In particular to a gas supply device for supplying nitrogen to a blowing nozzle and an irradiation chamber of an electron accelerator.

Background

It is known in the field of electron accelerator manufacture and application that when a product is irradiated by an electron accelerator, the irradiated product is very sensitive to oxygen, and therefore, it is necessary to isolate the irradiated product using an inert gas. Otherwise, it will be difficult to ensure the quality of the irradiated product. In addition, when the product is irradiated by the electron accelerator, the titanium foil at the outlet of the radiation head of the beam-flow extraction window needs to be cooled by inert gas so as to prevent the damage caused by the temperature rise of the titanium foil.

At present, the inert gas used for isolating the irradiated product or cooling the titanium foil at the outlet of the radiation head of the beam-exiting window is nitrogen. Specifically, a nitrogen base station or a nitrogen making machine is used for directly providing nitrogen for the irradiation chamber and the blowing nozzle. Because the nitrogen base station or the nitrogen making machine is used for directly providing nitrogen for the irradiation chamber and the blowing nozzle, the nitrogen base station or the nitrogen making machine cannot communicate with the irradiation chamber and the blowing nozzle, so that the nitrogen concentration cannot be controlled. Therefore, the quality of the irradiated product cannot be guaranteed, the waste of nitrogen can be caused, and the production cost is increased.

Disclosure of Invention

the invention aims to provide a gas supply device for supplying nitrogen to an electron accelerator. By adopting the device, the quality of the irradiated product can be ensured, the waste of nitrogen is avoided, and the production cost is reduced.

The above problems to be solved by the present invention are realized by the following technical solutions:

The invention relates to a gas supply device for providing nitrogen gas for an electron accelerator, which comprises the electron accelerator and a nitrogen making machine, wherein the electron accelerator comprises a shielding cylinder, a partition plate for dividing an inner cavity of the shielding cylinder into a vacuum chamber and an irradiation chamber is arranged in the shielding cylinder, a through hole is formed in the partition plate, a beam extraction window is arranged in the vacuum chamber, and the lower end of the beam extraction window penetrates through the through hole in a sealing manner and then extends into the irradiation chamber; and the lower end of the beam flow leading-out window is provided with a blowing nozzle for cooling the titanium foil, and the blowing nozzle and the irradiation chamber are respectively communicated with an outlet of the nitrogen making machine through a first valve and a second valve. The method is characterized in that: the device also comprises a controller and a sensor, wherein the sensor is positioned in the irradiation chamber. The first valve and the second valve are both electromagnetic valves, and the nitrogen making machine, the first valve, the second valve and the sensor are all connected with the controller by means of leads.

Wherein, all have first tube hole on the lateral wall of vacuum chamber and the baffle, have the trachea in the first tube hole, tracheal both ends respectively with first valve with blow to link to each other.

The wall of the cylinder where the irradiation chamber is located is provided with a second pipe hole, the second pipe hole is internally provided with a gas pipe joint, and the irradiation chamber is communicated with the nitrogen making machine through the gas pipe joint and a second valve.

The two second pipe holes are respectively positioned on the wall of the cylinder on the opposite side of the irradiation chamber, the two pipe holes are internally provided with a pipe joint, and the nitrogen making machine is communicated with the irradiation chamber through a three-way pipe, a gas pipe and the two pipe joints.

It can be seen from the above that, since the present invention includes a controller and a sensor, the sensor is located in the irradiation chamber. The first valve and the second valve are electromagnetic valves, and the nitrogen generator, the first valve, the second valve and the sensor are all connected with the controller by virtue of leads. The controller, the sensor and the second valve can realize communication between the irradiation chamber and the nitrogen making machine, namely, in the irradiation production process, the sensor senses the nitrogen concentration in the irradiation chamber, when the nitrogen concentration in the irradiation chamber is higher or lower than the required concentration, the sensor can convert the signal into an electric signal to be sent to the controller, and then the controller gives an instruction of reducing or improving the nitrogen concentration to the nitrogen making machine, so that the nitrogen concentration entering the irradiation chamber meets the design requirement. Therefore, the quality of the irradiated product is ensured, the waste of nitrogen is avoided, and the production cost is reduced.

Drawings

FIG. 1 is a schematic view of a gas supply apparatus of the present invention for supplying nitrogen gas to an electron accelerator,

Detailed Description

As shown in fig. 1, the gas supply apparatus for supplying nitrogen gas to an electron accelerator according to the present invention includes an electron accelerator, a nitrogen generator 3, and a controller 6. The electron accelerator comprises a shielding cylinder 1, a partition plate 11 for dividing an inner cavity of the shielding cylinder 1 into a vacuum chamber 10 and an irradiation chamber 14 is arranged in the shielding cylinder 1, a first through hole is processed on the partition plate 11, a beam extraction window 9 is arranged in the vacuum chamber 10, and the lower end of the beam extraction window 9 penetrates through the first through hole in the partition plate 11 in a sealed manner and then extends into the irradiation chamber 14. The lower end of the beam outlet window 9 is provided with a blowing nozzle 15 for cooling titanium foil of the beam outlet window, a first pipe hole is processed on the partition plate 11 on one side of the blowing nozzle 15 and on the adjacent side wall of the vacuum chamber 10, an air pipe penetrates through the first pipe hole, and the air pipe is in sealed fit with the first pipe hole. One end of the air pipe 8 is connected with the first valve 5, and the other end of the air pipe penetrates through the first pipe hole in a sealing manner and then is connected with the blowing nozzle 15.

Two second pipe holes are machined in the wall of the irradiation chamber 14, and the two second pipe holes are respectively located in the wall of the irradiation chamber on the opposite side. The second pipe holes are internally provided with air pipe joints 13, and the irradiation chamber 14 is communicated with the nitrogen generator 3 through the two air pipe joints 13, the two air pipes, the three-way pipe 17 and the second valve 4.

A sensor 16 is disposed within the irradiation chamber 14. The first valve 5 and the second valve 4 are electromagnetic valves, and the nitrogen generator 3, the first valve 5, the second valve 4 and the sensor 16 are all connected with the controller 6 through leads.