CN109388158A - A kind of accelerator vacuum pump overheat protector system - Google Patents
A kind of accelerator vacuum pump overheat protector system Download PDFInfo
- Publication number
- CN109388158A CN109388158A CN201710671665.9A CN201710671665A CN109388158A CN 109388158 A CN109388158 A CN 109388158A CN 201710671665 A CN201710671665 A CN 201710671665A CN 109388158 A CN109388158 A CN 109388158A
- Authority
- CN
- China
- Prior art keywords
- temperature
- vacuum pump
- overheat protector
- contactor
- sampler
- 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.)
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention relates to a kind of accelerator vacuum pump overheat protector systems; 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 connects temperature controller (2), and contactor normally opened contact both ends connect vacuum pump power supply (3) positive and negative anodes；When temperature sampler (1) acquisition temperature within the set range; temperature controller (2) exports the voltage so that contactor work; contactor normally opened contact closure; vacuum pump connects power supply; when the temperature of temperature sampler (1) acquisition is more than setting range, temperature controller (2) output voltage is 0, and contactor normally opened contact disconnects; vacuum pump and power supply disconnect, and complete overheat protector.Compared with prior art, the present invention can realize overheat protector automatically, securely and reliably.
Description
Technical field
The present invention relates to a kind of vacuum pump protecting systems, more particularly, to a kind of accelerator vacuum pump overheat protector system.
Background technique
The operation of medical computerized linear accelerator be unable to do without vacuum technique, needs the item in high vacuum, even ultrahigh vacuum
It is 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 the importance of stable high vacuum state in medical electron linear Accelerating running use process, 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 that a thin-walled is stainless
Steel cylinder, cathode are two pieces of titanium plates, are respectively placed in anode two sides.The defect of vacuum system is vacuum ring in the cavity in accelerator
After border is deteriorated, when ionic pump discharge current is big, ion pump power output voltage will not be reduced, and can persistently be exported to ionic pump
5KV high-voltage electricity, this will lead to ionic pump fever, and titanium plate can be burnt de- after temperature is excessively high, and ionic pump can not just work.Therefore, very
It is necessary to carry out overheat protector to vacuum pump.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of accelerator vacuum pumps
Overheat protector system.
The purpose of the present invention 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, and the contactor input terminal connects temperature
Controller is spent, contactor normally opened contact both ends connect vacuum pump power supply positive and negative anodes；
When temperature sampler acquisition temperature within the set range, temperature controller export so that contactor work electricity
Pressure, contactor normally opened contact closure, vacuum pump connect power supply, when temperature sampler acquisition temperature be more than setting range,
Temperature controller output voltage is 0, and contactor normally opened contact disconnects, and vacuum pump and power supply disconnect, and completes overheat protector.
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, the temperature anomaly timing unit connection
Temperature sampler, the temperature anomaly alarm unit connect temperature anomaly timing unit；
When temperature sampler temperature collection is more than setting range, temperature anomaly timing unit starts timing and recording exceptional
Time, the triggering abnormal alarm unit alarm when abnormal time is more than setting value.
The temperature anomaly timing unit includes analog-digital converter, controller and timer, the analog-digital converter
Temperature sampler is connected, the controller is separately connected analog-digital converter, timer and abnormal alarm unit, the control
Device includes single-chip microcontroller.
The abnormal alarm unit includes combined aural and visual alarm.
Temperature setting range is 0 DEG C~40 DEG C.
Compared with prior art, the present invention has the advantage that
(1) present invention acquires vacuum pump hull-skin temperature using temperature sampler, then passes through contact when temperature does not transfinite
The normal power supply of device normally opened contact being closed to realize vacuum pump power supply, so that vacuum pump operates normally, otherwise normally opened touching
The point disconnection in the open state for realizing vacuum pump power supply, thus realize overheat protector, whole process energy automatic running, peace
It is complete reliable；
(2) temperature sensor thermometric of the present invention is accurate and reliable；
(3) present invention setting radiator, and whether complete using the normally-closed contact of contactor the work of radiator, surely
When sky pump operates normally, radiator does not work, and when overtemperature prote, vacuum pump is out of service, and vacuum pump is realized in radiator work
Fast cooling, vacuum pump temperature can be made to restore normal as early as possible while realizing overheat protector, come into operation as early as possible；
(4) the temperature anomaly timing unit and abnormal alarm unit that the present invention is arranged are able to cooperate work, when vacuum pump surface
Temperature can notify staff to repair in time when being in exception for a long time.
Detailed description of the invention
Fig. 1 is the structural block diagram of accelerator vacuum pump overheat protector system of the present invention.
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.
Specific embodiment
The present invention 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, and contactor input terminal connects temperature control
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 temperature sampler 1 acquire temperature within the set range, temperature controller 2 export so that contactor work electricity
It presses, 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 acquires is more than setting range, 2 output voltage of temperature controller is 0, the normally opened touching of contactor
Point disconnects, and vacuum pump and power supply disconnect, and complete overheat protector, and 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 connect temperature sampler 1, and controller is separately connected analog-digital converter, timer
With abnormal alarm unit 6, controller includes single-chip microcontroller, and abnormal alarm unit 6 includes combined aural and visual alarm；When temperature sampler 1 is adopted
When collecting temperature more than setting range, temperature anomaly timing unit 5 starts timing and recording exceptional time, when abnormal time is more than to set
Abnormal alarm unit 6 is triggered when definite value to alarm.The present embodiment abnormal time is set as 20min.
The working principle of overheat protector of the present invention are as follows: when accelerator vacuum levels be deteriorated or system suddenly expose atmosphere,
And power supply is persistently powered on to vacuum pump at this time, and vacuum pump overheat is caused to burn out vacuum pump.Accelerator has installed over-temperature protection device additional
Afterwards, the input that vacuum-pump power supply can be automatically cut off when vacuum pump temperature is greater than 40 DEG C, can thus be effectively protected vacuum
Pump.Temperature sensor is transferred to the temperature of vacuum pump temperature controller 2, and temperature controller 2 judges after reading temperature,
When temperature makes ion pump power input contactor in the voltage that 0 DEG C < temperature < 40 DEG C temperature controller 2 can export a 24AC
Coil, contactor normally opened contact are attracted, and vacuum pump power supply 3 works, and vacuum pump obtains electric.Temperature control when being greater than 40 DEG C such as temperature
The output of device 2 processed is 0V, and contactor normally opened contact disconnects, and vacuum pump power supply 3 cannot work, and protection is played in vacuum pump power-off
The effect of vacuum pump.
Claims (8)
1. a kind of accelerator vacuum pump overheat protector system, which is characterized 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
Contactor input terminal connection temperature controller (2) stated, it is positive and negative that contactor normally opened contact both ends connect vacuum pump power supply (3)
Pole；
When temperature sampler (1) acquisition temperature within the set range, temperature controller (2) export so that contactor work electricity
Pressure, contactor normally opened contact closure, vacuum pump connect power supply, when the temperature of temperature sampler (1) acquisition is more than setting model
It encloses, temperature controller (2) output voltage is 0, and contactor normally opened contact disconnects, and vacuum pump and power supply disconnect, and completes overheat protector.
2. a kind of accelerator vacuum pump overheat protector system according to claim 1, which is characterized 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, which is characterized in that the system further includes
Radiator, the normally-closed contact both ends of radiator power supply (4) the connection contactor.
4. a kind of accelerator vacuum pump overheat protector system according to claim 3, which is characterized in that the radiator
Including radiator fan.
5. a kind of accelerator vacuum pump overheat protector system according to any one of claims 1 to 4, which is characterized in that should
System further includes temperature anomaly timing unit (5) and abnormal alarm unit (6), temperature anomaly timing unit (5) connection
Temperature sampler (1), the temperature anomaly alarm unit (6) connect temperature anomaly timing unit (5)；
When temperature sampler (1) temperature collection is more than setting range, temperature anomaly timing unit (5) starts timing and records different
Normal time, triggering abnormal alarm unit (6) alarm when abnormal time is more than setting value.
6. a kind of accelerator vacuum pump overheat protector system according to claim 5, which is characterized 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),
It includes monolithic that the controller, which is separately connected analog-digital converter, timer and abnormal alarm unit (6), the controller,
Machine.
7. a kind of accelerator vacuum pump overheat protector system according to claim 5, which is characterized in that the abnormal report
Alert unit (6) include combined aural and visual alarm.
8. a kind of accelerator vacuum pump overheat protector system according to claim 1, which is characterized in that temperature setting range
It is 0 DEG C~40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710671665.9A CN109388158A (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 |
|---|---|---|---|
| CN201710671665.9A CN109388158A (en) | 2017-08-08 | 2017-08-08 | A kind of accelerator vacuum pump overheat protector system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109388158A true CN109388158A (en) | 2019-02-26 |
Family
ID=65413999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710671665.9A Pending CN109388158A (en) | 2017-08-08 | 2017-08-08 | A kind of accelerator vacuum pump overheat protector system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109388158A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133412A (en) * | 2019-05-31 | 2019-08-16 | 杭州元朗智能科技有限公司 | A kind of charger test macro with temperature detecting function |
| CN111425413A (en) * | 2020-04-10 | 2020-07-17 | 中建四局安装工程有限公司 | Combined type electric control protection structure combined with drainage pump body and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433761Y (en) * | 2000-06-22 | 2001-06-06 | 张泽生 | Protecter for one-phase dry-type submersible pump |
| CN201650698U (en) * | 2010-04-22 | 2010-11-24 | 黄山市广远光电科技有限公司 | Vacuum pump control circuit of vacuum-pumping oven |
| CN203233142U (en) * | 2013-03-19 | 2013-10-09 | 中国石油化工股份有限公司 | Motor temperature control protection system |
| CN205092567U (en) * | 2015-11-23 | 2016-03-16 | 潍坊宏建橡塑有限公司 | Open rubber mixing machine of rubber with motor overheat protection |
| CN106996677A (en) * | 2017-05-04 | 2017-08-01 | 合肥美的电冰箱有限公司 | Refrigerator high temperature alarm method and warning device and the refrigerator with the warning device |
-
2017
- 2017-08-08 CN CN201710671665.9A patent/CN109388158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433761Y (en) * | 2000-06-22 | 2001-06-06 | 张泽生 | Protecter for one-phase dry-type submersible pump |
| CN201650698U (en) * | 2010-04-22 | 2010-11-24 | 黄山市广远光电科技有限公司 | Vacuum pump control circuit of vacuum-pumping oven |
| CN203233142U (en) * | 2013-03-19 | 2013-10-09 | 中国石油化工股份有限公司 | Motor temperature control protection system |
| CN205092567U (en) * | 2015-11-23 | 2016-03-16 | 潍坊宏建橡塑有限公司 | Open rubber mixing machine of rubber with motor overheat protection |
| CN106996677A (en) * | 2017-05-04 | 2017-08-01 | 合肥美的电冰箱有限公司 | Refrigerator high temperature alarm method and warning device and the refrigerator with the warning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133412A (en) * | 2019-05-31 | 2019-08-16 | 杭州元朗智能科技有限公司 | A kind of charger test macro with temperature detecting function |
| CN111425413A (en) * | 2020-04-10 | 2020-07-17 | 中建四局安装工程有限公司 | Combined type electric control protection structure combined with drainage pump body and method thereof |
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