CN207232785U - A kind of accelerator vacuum pump overheat protector system - Google Patents
A kind of accelerator vacuum pump overheat protector system Download PDFInfo
- Publication number
- CN207232785U CN207232785U CN201720985943.3U CN201720985943U CN207232785U CN 207232785 U CN207232785 U CN 207232785U CN 201720985943 U CN201720985943 U CN 201720985943U CN 207232785 U CN207232785 U CN 207232785U
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- temperature
- vacuum pump
- overheat protector
- contactor
- controller
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Abstract
It the utility model is related to a kind of accelerator vacuum pump overheat protector system; the system includes temperature sampler (1), temperature controller (2) and contactor; the temperature sampler (1) is arranged on vacuum pump and connects the temperature controller (2); the contactor input terminal connection temperature controller (2), contactor normally opened contact both ends connection vacuum pump power supply (3) positive and negative anodes；When the temperature of temperature sampler (1) collection is in setting range; temperature controller (2) exports so that the voltage of contactor work; contactor normally opened contact closes; vacuum pump connects power supply; when the temperature of temperature sampler (1) collection exceedes setting range, temperature controller (2) output voltage is 0, and contactor normally opened contact disconnects; vacuum pump is disconnected with power supply, completes overheat protector.Compared with prior art, the utility model can realize overheat protector automatically, securely and reliably.
Description
Technical field
A kind of vacuum pump protecting system is the utility model is related to, more particularly, to a kind of accelerator vacuum pump overheat protector system
System.
Background technology
The operation of medical computerized linear accelerator be unable to do without vacuum technique, it is necessary in high vacuum, the bar of even ultrahigh vacuum
Run under part.Vacuum technique mainly has in the effect of medical computerized linear accelerator：
(1) discharge breakdown in accelerating tube is avoided；
(2) gun cathode is prevented to be poisoned；
(3) collision loss of electronics and residual gas is reduced.
It can be seen that maintaining importance of the high vacuum state of stabilization during medical electron linear Accelerating running use, maintain
The pump of medical computerized linear accelerator high vacuum is sputter ion pump.Divide the two poles of the earth in sputter ion pump, anode is stainless for a thin-walled
Steel cylinder, cathode are two pieces of titanium plates, are respectively placed in anode both sides.It is vacuum ring in the cavity the defects of vacuum system in accelerator
After border is deteriorated, when ionic pump discharge current is big, ion pump power output voltage will not reduce, it can persistently be exported to ionic pump
5KV high-voltage electricity, this can cause ionic pump to generate heat, and titanium plate can be burnt de- after temperature is excessive, and ionic pump can not just work.Therefore, very
It is necessary to carrying out overheat protector to vacuum pump.
Utility model content
The purpose of this utility model is exactly to overcome the problems of the above-mentioned prior art and to provide a kind of accelerator true
Sky pump overheat protector system.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of accelerator vacuum pump overheat protector system, the system include temperature sampler, temperature controller and contactor,
The temperature sampler is arranged on vacuum pump and connects the temperature controller, contactor input terminal connection temperature
Spend controller, contactor normally opened contact both ends connection vacuum pump power supply positive and negative anodes.
The temperature sampler is temperature sensor, and the temperature sensor is affixed on vacuum pump outer surface.
The system further includes radiator, the normally-closed contact both ends of the radiator power supply connection contactor.
The radiator includes radiator fan.
The system further includes temperature anomaly timing unit and abnormal alarm unit, temperature anomaly timing unit connection
Temperature sampler, temperature anomaly alarm unit connection temperature anomaly timing unit.
The temperature anomaly timing unit includes analog-digital converter, controller and timer, the analog-digital converter
Temperature sampler is connected, the controller connects analog-digital converter, timer and abnormal alarm unit, the control respectively
Device includes microcontroller.
The abnormal alarm unit includes audible-visual annunciator.
Temperature setting range is 0 DEG C~40 DEG C.
Compared with prior art, the utility model has the following advantages that：
(1) the utility model is then passed through using temperature sampler collection vacuum pump hull-skin temperature when temperature does not transfinite
Contactor normally opened contact is closed to realize the normal power supply of vacuum pump power supply so that vacuum pump normal operation, otherwise often
Open contact and be in the disconnection that open mode realizes vacuum pump power supply, so as to fulfill overheat protector, whole process can transport automatically
OK, securely and reliably；
(2) the utility model temperature sensor thermometric is accurately and reliably；
(3) the utility model sets radiator, and whether using the normally-closed contact of contactor to complete the work of radiator,
When vacuum pump normal operation, radiator does not work, and when overtemperature prote, vacuum pump is out of service, and radiator work, is realized true
The fast cooling of sky pump, can be as early as possible so that vacuum pump temperature recovers normal while overheat protector is realized, input makes as early as possible
With；
(4) the temperature anomaly timing unit and abnormal alarm unit energy cooperating that the utility model is set, works as vacuum pump
Surface temperature can notify staff to carry out maintenance in time when being in abnormal for a long time.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model accelerator vacuum pump overheat protector system.
In figure, 1 is temperature sampler, and 2 be temperature controller, and 3 be vacuum pump power supply, and 4 be radiator power supply,
5 be temperature anomaly timing unit, and 6 be abnormal alarm unit.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of accelerator vacuum pump overheat protector system, which includes temperature sampler 1, temperature control
Device 2 and contactor, temperature sampler 1 are arranged on vacuum pump and connect temperature controller 2, the connection temperature control of contactor input terminal
Device 2 processed, contactor normally opened contact both ends connect 3 positive and negative anodes of vacuum pump power supply, and KM is contactor input terminal in figure, and KT1 is
Contactor normally opened contact, KT2 are contactor normally-closed contact；
When the temperature that temperature sampler 1 gathers is in setting range, temperature controller 2 exports so that the electricity of contactor work
Press, temperature controller 2 exports the voltage of a 24AC, contactor normally opened contact closure in the present embodiment, and vacuum pump connects power supply
Power supply, when the temperature that temperature sampler 1 gathers exceedes setting range, 2 output voltage of temperature controller is 0, and contactor is normally opened to be touched
Point disconnects, and vacuum pump is disconnected with power supply, completes overheat protector, temperature setting range is set as 0 DEG C~40 DEG C in this implementation.
Temperature sampler 1 is temperature sensor, and temperature sensor is affixed on vacuum pump outer surface.
The system further includes radiator, and radiator power supply 4 connects the normally-closed contact both ends of contactor, and radiator includes
Radiator fan.
The system further includes temperature anomaly timing unit 5 and abnormal alarm unit 6, and temperature anomaly timing unit 5 connects temperature
Collector 1 is spent, temperature anomaly alarm unit 6 connects temperature anomaly timing unit 5, and temperature anomaly timing unit 5 turns including modulus
Parallel operation, controller and timer, analog-digital converter connection temperature sampler 1, controller connect analog-digital converter, timer respectively
With abnormal alarm unit 6, controller includes microcontroller, and abnormal alarm unit 6 includes audible-visual annunciator；When temperature sampler 1 is adopted
When collection temperature exceedes setting range, temperature anomaly timing unit 5 starts timing and recording exceptional time, is set when abnormal time exceedes
Abnormal alarm unit 6 is triggered during definite value to alarm.The present embodiment abnormal time is set as 20min.
The operation principle of the utility model overheat protector is：When accelerator vacuum levels variation or system, exposure is big suddenly
Gas, and power supply is persistently powered up to vacuum pump at this time, causes vacuum pump overheat to burn out vacuum pump.Accelerator has installed overheat protector dress additional
Postpone, the input of vacuum-pump power supply can be automatically cut off when vacuum pump temperature is more than 40 DEG C, can thus be effectively protected true
Sky pump.Temperature sensor is transferred to the temperature of vacuum pump temperature controller 2, makes and sentencing after the reading temperature of temperature controller 2
It is disconnected, when temperature is at 0 DEG C<Temperature<The voltage that 40 DEG C of temperature controllers 2 can export a 24AC causes ion pump power input contact
Device coil, contactor normally opened contact are attracted, and vacuum pump power supply 3 works, and vacuum pump obtains electric.Temperature when being more than 40 DEG C such as temperature
The output of controller 2 is 0V, and contactor normally opened contact disconnects, and vacuum pump power supply 3 cannot work, and vacuum pump power-off, plays guarantor
Protect the effect of vacuum pump.
Claims (8)
1. a kind of accelerator vacuum pump overheat protector system, it is characterised in that the system includes temperature sampler (1), temperature control
Device (2) processed and contactor, the temperature sampler (1) are arranged on vacuum pump and connect the temperature controller (2), institute
The contactor input terminal connection temperature controller (2) stated, contactor normally opened contact both ends connection vacuum pump power supply (3) are positive and negative
Pole.
2. a kind of accelerator vacuum pump overheat protector system according to claim 1, it is characterised in that the temperature is adopted
Storage (1) is temperature sensor, and the temperature sensor is affixed on vacuum pump outer surface.
3. a kind of accelerator vacuum pump overheat protector system according to claim 1, it is characterised in that the system further includes
Radiator, the normally-closed contact both ends of radiator power supply (4) the connection contactor.
A kind of 4. accelerator vacuum pump overheat protector system according to claim 3, it is characterised in that the radiator
Including radiator fan.
5. according to a kind of accelerator vacuum pump overheat protector system of Claims 1 to 4 any one of them, it is characterised in that should
System further includes temperature anomaly timing unit (5) and abnormal alarm unit (6), the temperature anomaly timing unit (5) connection
Temperature sampler (1), the temperature anomaly alarm unit (6) connection temperature anomaly timing unit (5).
6. a kind of accelerator vacuum pump overheat protector system according to claim 5, it is characterised in that the temperature is different
Normal timing unit (5) includes analog-digital converter, controller and timer, and the analog-digital converter connects temperature sampler (1),
The controller connects analog-digital converter, timer and abnormal alarm unit (6) respectively, and the controller includes monolithic
Machine.
A kind of 7. accelerator vacuum pump overheat protector system according to claim 5, it is characterised in that the abnormal report
Alert unit (6) includes audible-visual annunciator.
A kind of 8. accelerator vacuum pump overheat protector system according to claim 1, it is characterised in that temperature setting range
For 0 DEG C~40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720985943.3U CN207232785U (en) | 2017-08-08 | 2017-08-08 | A kind of accelerator vacuum pump overheat protector system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720985943.3U CN207232785U (en) | 2017-08-08 | 2017-08-08 | A kind of accelerator vacuum pump overheat protector system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207232785U true CN207232785U (en) | 2018-04-13 |
Family
ID=61855538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720985943.3U Active CN207232785U (en) | 2017-08-08 | 2017-08-08 | A kind of accelerator vacuum pump overheat protector system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207232785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258358A (en) * | 2020-01-20 | 2020-06-09 | 安徽省先锋制药有限公司 | Internet of things control system for constant temperature and humidity box |
-
2017
- 2017-08-08 CN CN201720985943.3U patent/CN207232785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258358A (en) * | 2020-01-20 | 2020-06-09 | 安徽省先锋制药有限公司 | Internet of things control system for constant temperature and humidity box |
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