CN206585825U - A kind of automatic exhaust making-up air device of medical accelerator waveguide - Google Patents
A kind of automatic exhaust making-up air device of medical accelerator waveguide Download PDFInfo
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- CN206585825U CN206585825U CN201720200440.0U CN201720200440U CN206585825U CN 206585825 U CN206585825 U CN 206585825U CN 201720200440 U CN201720200440 U CN 201720200440U CN 206585825 U CN206585825 U CN 206585825U
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Abstract
The utility model discloses a kind of automatic exhaust making-up air device of medical accelerator waveguide, belong to electron linear accelerator technical field.Gas cylinder is connected by charge valve with waveguide, and whether waveguide is filled with by the opening and closing control gas of charge valve；The opening and closing of charge valve is controlled by the manometric feedback pressure of magnetic-type electrical contact, opening charge valve less than the lower limit pressure automatic inflating device control unit set when pressure starts inflation, when the pressure that gas is filled with waveguide reaches that upper limit will stop inflation.Timing exhaust gas control unit is connected with air bleeding valve, sets timing exhaust gas control unit setting release and evacuation time, and timing exhaust gas control unit and automatic inflating device control unit have one another would not work when working.Using magnetic-type electrical contact pressure gauge and automatic inflating device control unit, while effect has prevented, the blowing pressure is too high to be caused to damage this programme to accelerator, improves the safety and reliability of equipment.
Description
Technical field
The utility model belongs to the electron linear accelerator technical field that medical treatment and industrial irradiation are applied, and in particular to a kind of
The automatic exhaust making-up air device of gas in medical accelerator waveguide.
Background technology
, it is necessary to by waveguide by microwave source power transmission to accelerating tube in the application of middle high energy medical computerized linear accelerator
In, accelerating tube is under high vacuum state, in order to prevent from occurring in air pressurized waveguide system high frequency sparking particularly in waveguide
With the junction of input window, it would be desirable to dielectric gas is filled with waveguide and the blowing pressure will be maintained within the limits prescribed.
Sulfur hexafluoride gas is used in normal air pressurized waveguide, in order to ensure there is the sulfur hexafluoride of enough pressure in microwave device
Gas, it is necessary to be monitored in real time to waveguide internal gas pressure, it is ensured that microwave device air pressure inside is both without departing from microwave
The pressure that device can bear can not be less than the barometric minimum requirement required for medical accelerator normal work.
The inflation of current medical accelerator, all needs of deflating manually are done, and if accelerator microwave device hair
Raw gas leakage can cause medical accelerator can not normal work, the damage of unrepairable can be caused to waveguide by occurring high frequency sparking；One
As in the case of need Time deflation as requested, and if sulfur hexafluoride gas its content when deflating reaches that 19% can to human body
Harmful, people are unwilling to deflate in many cases, and be vented not in time medical accelerator be also can normal work, this
In be regularly vented and can just bring great convenience, improve the stability and security of medical accelerator work.
Utility model content
In view of this, the utility model provides a kind of automatic exhaust making-up air device of medical accelerator waveguide, and device is adopted
The automatic inflating device and timing that medical accelerator waveguide is realized with timing exhaust gas control unit, automatic inflating device control unit are vented,
The characteristics of with good reliability, accuracy and high degree of safety.
A kind of automatic exhaust making-up air device of medical accelerator waveguide, the device includes timing exhaust gas control unit, automatic
Gas supply control unit, magnetic-type electrical contact pressure gauge, air bleeding valve, charge valve and gas cylinder, ancillary equipment are the ripple of medical accelerator
Lead；
The magnetic-type electrical contact pressure gauge is connected to the pressure in waveguide and inside real-time perception waveguide, gas cylinder and waveguide
Between pipeline on connect and be also associated with air bleeding valve in charge valve, waveguide；Master Control Unit is controlled by automatic inflating device control unit
The opening and closing of charge valve makes waveguide internal pressure be maintained at the scope of setting；Timing exhaust gas control unit is controlled by time switch
Air bleeding valve time opening and closing, information, master control list are sent during timing exhaust gas control unit time opening to Master Control Unit simultaneously
Member makes automatic inflating device control unit be stopped, and timing exhaust gas control unit controls exhaust valve closure after the completion of exhaust, and timing is arranged
Information is sent to Master Control Unit when the timing of gas control unit is closed, Master Control Unit makes automatic inflating device control unit start working, from
Dynamic gas supply control unit is opened charge valve and started to waveguide tonifying Qi.
Further, the pressure information inside waveguide is real-time transmitted to master control list by the magnetic-type electrical contact pressure gauge
Member, Master Control Unit is compared according to the upper pressure limit and low pressure limit that pre-set with pressure information；
When the pressure that magnetic-type electrical contact pressure gauge is shown is between upper pressure limit and low pressure limit, Master Control Unit passes through
Automatic inflating device control unit control charge valve is closed；The pressure that magnetic-type electrical contact pressure gauge is shown is dropped under the pressure of setting
When under limit, Master Control Unit controls charge valve to open by automatic inflating device control unit, and the gas in gas cylinder is filled with waveguide, presses
Master Control Unit is closed charge valve by automatic inflating device control unit when power reaches the upper pressure limit of setting.
Beneficial effect：
1st, security of the present utility model is good, and timing exhaust gas control unit does not need artificial exhaust, solves due to people
The injury caused for exhaust to human body.
2nd, the gas pressure that automatic inflating device control unit of the present utility model can accurately required for make-up gas to us
Power reduces the damage to waveguide so that the work that accelerator can be continual and steady.
What the 3rd, timing exhaust gas control unit of the present utility model and automatic inflating device control unit can be independent sets up exhaust
Time, the upper and lower bound of automatic inflating device, practicality are good.
Brief description of the drawings
Fig. 1 is overall structure composition schematic diagram of the present utility model.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of automatic exhaust making-up air device of medical accelerator waveguide, the dress
Put gentle including timing exhaust gas control unit, automatic inflating device control unit, magnetic-type electrical contact pressure gauge, air bleeding valve, charge valve
Bottle, ancillary equipment is the waveguide of medical accelerator；
Magnetic-type electrical contact pressure gauge is connected to the pressure in waveguide and inside real-time perception waveguide, between gas cylinder and waveguide
Pipeline on connect and be also associated with air bleeding valve in charge valve, waveguide；Master Control Unit controls to inflate by automatic inflating device control unit
The opening and closing of valve makes waveguide internal pressure be maintained at the scope of setting；Timing exhaust gas control unit controls exhaust by time switch
Valve timing is opened and closed, and information is sent to Master Control Unit simultaneously during timing exhaust gas control unit time opening, and Master Control Unit makes
Automatic inflating device control unit is stopped, and timing exhaust gas control unit controls exhaust valve closure, timing exhaust control after the completion of exhaust
Unit timing processed sends information when closing to Master Control Unit, and Master Control Unit makes automatic inflating device control unit start working, automatic to mend
Gas control unit is opened charge valve and started to waveguide tonifying Qi.
Pressure information inside waveguide is real-time transmitted to Master Control Unit by magnetic-type electrical contact pressure gauge, Master Control Unit according to
The upper pressure limit and low pressure limit pre-set is compared with pressure information；
When the pressure that magnetic-type electrical contact pressure gauge is shown is between upper pressure limit and low pressure limit, Master Control Unit passes through
Automatic inflating device control unit control charge valve is closed；The pressure that magnetic-type electrical contact pressure gauge is shown is dropped under the pressure of setting
When under limit, Master Control Unit controls charge valve to open by automatic inflating device control unit, and the gas in gas cylinder is filled with waveguide, presses
Master Control Unit is closed charge valve by automatic inflating device control unit when power reaches the upper pressure limit of setting.
Embodiment：
The waveguide of medical computerized linear accelerator is connected by charge valve with equipped with sulfur hexafluoride gas gas cylinder first,
Ensure air tight, automatic inflating device control unit is connected with charge valve and magnetic-type electrical contact pressure gauge.Magnetic-type electrical contact pressure
The pressure that power table can be tested inside waveguide, is filled with SF6 gases and reaches certain pressure 2Mpa, adjust magnetic-type electrical contact first
The pressure gauge top-of-form set upper limit is 2.2Mpa, and lower limit is 1.6Mpa.
When the waveguide in accelerator is in use because a variety of causes causes sulfur hexafluoride gas constantly reducing, plus
Pressure inside fast device waveguide is reducing, and automatic inflating device control unit passes through magnetic-type electrical contact pressure gauge when less than 1.6Mpa
Detecting pressure will control charge valve to open less than lower limit, and sulfur hexafluoride gas gas is filled with accelerator spectrometer.
Then gas pressure is continuously increased, when pressure reaches 2.2Mpa, and automatic inflating device control unit passes through magnetic-type electricity
Contact pressure table detects pressure and reaches 2.2Mpa, and now automatic inflating device control unit control charge valve closure prevents sulfur hexafluoride
Gas is filled with, reach automatic inflating device purpose and by pressure it is constant in 1.6Mpa between 2.2Mpa.
There is micro time-controlled switch that the time of opening and closing can be set in timing exhaust gas control unit, be set to
Timing opening time Sunday 20:00, timing shut-in time 20:02, evacuation time is 2 minutes.On every Sundays 20:00 timing exhaust control
Unit control air bleeding valve processed is opened and by the uncontrollable charge valve of automatic inflating device control unit, to 20:By air bleeding valve when 02
Close, it is ensured that will not gas leakage, now recover automatic inflating device control unit function.Automatic inflating device control unit will be as described above
Automatic inflating device reaches the pressure of setting.
In summary, preferred embodiment of the present utility model is these are only, is not intended to limit of the present utility model
Protection domain.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. all should be wrapped
It is contained within protection domain of the present utility model.
Claims (2)
1. the automatic exhaust making-up air device of a kind of medical accelerator waveguide, it is characterised in that the device includes timing gas exhaust inspecting
Unit, automatic inflating device control unit, magnetic-type electrical contact pressure gauge, air bleeding valve, charge valve and gas cylinder, ancillary equipment add to be medical
The waveguide of fast device；
The magnetic-type electrical contact pressure gauge is connected to the pressure in waveguide and inside real-time perception waveguide, between gas cylinder and waveguide
Pipeline on connect and be also associated with air bleeding valve in charge valve, waveguide；Master Control Unit controls to inflate by automatic inflating device control unit
The opening and closing of valve makes waveguide internal pressure be maintained at the scope of setting；Timing exhaust gas control unit controls exhaust by time switch
Valve timing is opened and closed, and information is sent to Master Control Unit simultaneously during timing exhaust gas control unit time opening, and Master Control Unit makes
Automatic inflating device control unit is stopped, and timing exhaust gas control unit controls exhaust valve closure, timing exhaust control after the completion of exhaust
Unit timing processed sends information when closing to Master Control Unit, and Master Control Unit makes automatic inflating device control unit start working, automatic to mend
Gas control unit is opened charge valve and started to waveguide tonifying Qi.
2. the automatic exhaust making-up air device of medical accelerator waveguide as claimed in claim 1, it is characterised in that the magnetic-type
Pressure information inside waveguide is real-time transmitted to Master Control Unit by electro connecting pressure gauge, and Master Control Unit is according to the pressure pre-set
The upper limit and low pressure limit are compared with pressure information；
When the pressure that magnetic-type electrical contact pressure gauge is shown is between upper pressure limit and low pressure limit, Master Control Unit passes through automatic
Gas supply control unit control charge valve is closed；The pressure that magnetic-type electrical contact pressure gauge is shown drop to setting low pressure limit it
When lower, Master Control Unit controls charge valve to open by automatic inflating device control unit, and the gas in gas cylinder is filled with waveguide, and pressure reaches
To setting upper pressure limit when Master Control Unit charge valve is closed by automatic inflating device control unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016214335166 | 2016-12-23 | ||
| CN201621433516 | 2016-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206585825U true CN206585825U (en) | 2017-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720200440.0U Active CN206585825U (en) | 2016-12-23 | 2017-03-02 | A kind of automatic exhaust making-up air device of medical accelerator waveguide |
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| Country | Link |
|---|---|
| CN (1) | CN206585825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601340A (en) * | 2020-12-21 | 2021-04-02 | 上海高鹰科技有限公司 | Radiation protection structure of accelerator waveguide gas filling device |
| CN113273315A (en) * | 2018-08-16 | 2021-08-17 | 伊利克塔有限公司 | Method for use with radiotherapy apparatus |
-
2017
- 2017-03-02 CN CN201720200440.0U patent/CN206585825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273315A (en) * | 2018-08-16 | 2021-08-17 | 伊利克塔有限公司 | Method for use with radiotherapy apparatus |
| CN113273315B (en) * | 2018-08-16 | 2024-04-09 | 伊利克塔有限公司 | Method for use with radiotherapy apparatus |
| CN112601340A (en) * | 2020-12-21 | 2021-04-02 | 上海高鹰科技有限公司 | Radiation protection structure of accelerator waveguide gas filling device |
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