CN204938822U - A kind of neutron source remote control - Google Patents
A kind of neutron source remote control Download PDFInfo
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- CN204938822U CN204938822U CN201520638944.1U CN201520638944U CN204938822U CN 204938822 U CN204938822 U CN 204938822U CN 201520638944 U CN201520638944 U CN 201520638944U CN 204938822 U CN204938822 U CN 204938822U
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- remote control
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Abstract
A kind of neutron source remote control, comprising: control cabin and radiation chamber; Be provided with in radiation chamber: support, stepping motor, reel, pulley, steel rope, circuit box, infrared switch, stem pipe, radioactive source carrier and threshold switch; Pulley is fixed on support; Circuit box and infrared switch hang on support, infrared switch connecting time relay and stepping motor, and are equiped with actuator and time relay in circuit box; Stepping motor and reel are coaxially arranged; Steel rope one end is fixed on reel, and the other end is connected with radioactive source carrier after walking around pulley, and below ground is imbedded in the bottom of stem pipe, and radioactive source carrier can move up and down under the traction of steel rope in stem pipe; Threshold switch is arranged at the entrance of radiation chamber; Be provided with controller and power supply in control cabin, controller connects actuator, and power supply is connected with threshold switch and actuator successively by time relay.
Description
Technical field
The utility model relates to active source control technology, particularly relates to a kind of neutron source remote control.
Background technology
At present, III, IV class small neutron active source is widely used in the Nuclear Techniques field such as industry, agricultural, aerospace, because neutron is not charged, there is high penetrative quality, can directly and atomic nucleus have an effect, cause tissue and organ dysfunction or structure to change, damage and even damage.Such as, so what first need when designing the operative installations of active source to consider is exactly safety precaution to staff: arrange active source cask flask, safety interlocking etc.When utilizing active source to test, require that the radiation field formed will have certain repeatability, this just needs the action process making active source to want precisely, such as: active source promotes or turns to site and wants precisely, to guarantee to obtain scientific and rational observed data.Because the use of active source is had nothing in common with each other, also do not have standardized radioactive source controller, existing design or too simple machine even need manually to complete, or design is too numerous and diverse, causes the inconvenience of maintenance.
In order to solve the problem, use electric block to promote active source in prior art, putting forward source steel rope convolution on wheel shaft, then with limit switch, active source hoisting depth is positioned.But active source is when promoting with normal speed, and when limit switch makes active source stop suddenly, because do not have moderating process, active source can be subject to effect of inertia, produces upheaval after stopping, causing active source positioning precision to decline, is unfavorable for the repeatability of observed data.In addition, in case of emergency, by control motor reversal, active source is returned and drop to security mask position.Utilize this design active source leakdown rate slow, do not meet the principle of " time is as far as possible short " in radiation protection.When running into accidental power failure, electric block can fall because auto-lock function can not make radioactive sources safety return.
Utility model content
The utility model provides a kind of neutron source remote control, promote the inadequate problem of in-placing precision, and active source in case of emergency can not return the problem of the security mask position fallen fast to solve active source.
To achieve these goals, the utility model embodiment provides a kind of neutron source remote control, and described neutron source remote control comprises: control cabin and radiation chamber;
Be provided with in described radiation chamber: support, stepping motor, reel, pulley, steel rope, circuit box, infrared switch, stem pipe, radioactive source carrier and threshold switch;
Described pulley is fixed on described support; Described circuit box and infrared switch hang on described support, are equiped with actuator and time relay in described circuit box, and described infrared switch connects described time relay and stepping motor; Described stepping motor and reel are coaxially arranged; Described steel rope one end is fixed on described reel, be connected with described radioactive source carrier after the other end walks around described pulley, below ground is imbedded in the bottom of described stem pipe, and described radioactive source carrier can move up and down under the traction of described steel rope in described stem pipe; Described threshold switch is arranged at the entrance of described radiation chamber;
Be provided with controller and power supply in described control cabin, described controller connects described actuator, and described power supply is connected with described threshold switch and actuator successively by described time relay.
In one embodiment, described neutron source remote control also comprises: emergency stop switch, is arranged in described radiation chamber, is connected between described threshold switch and time relay.
In one embodiment, described reel is provided with spirality winding line groove.
In one embodiment, described neutron source remote control also comprises: reel support, for supporting described reel.
Utilize neutron source remote control of the present utility model, when normally working, can ensure that radioactive source carrier promotes in-placing precision, improve the repeatability of observed data.When occurring that personnel are strayed into, press emergency stop switch or active source and promote when surmounting the unforeseen circumstancess such as safe altitude, active source can drop to subsurface safety screening-off position fast.In addition, the mechanical drive structure of neutron source remote control is simple, and control system is easy to operate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the integral structure schematic diagram of the neutron source remote control of the utility model embodiment;
Fig. 2 is the schematic diagram of neutron source remote control of the present utility model;
Fig. 3 is reel structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of neutron source remote control, and as shown in Figure 1, neutron source remote control comprises: control cabin and radiation chamber.
As shown in Figure 1, be provided with in radiation chamber: actuator, stepping motor, infrared switch, threshold switch, time relay and bont.
In one embodiment, stepping motor can be the hybrid 3HB57-76 stepping motor of 57 series three phase.
As shown in Figure 2, this bont comprises: support 3, reel 2, pulley 6, steel rope 4, stem pipe 8 and radioactive source carrier 9.
Pulley 6 can have multiple, is fixed on support 3.Reel 2 stepping motor 1 is arranged with coaxial.One end of steel rope 4 is fixed on reel 2, and the other end is connected with radioactive source carrier 9 after walking around pulley 6.
Ground less than 10 is imbedded in the bottom of stem pipe 8, and radioactive source carrier 9 can move up and down under the traction of steel rope 4 in stem pipe 8.
Threshold switch (not shown in Fig. 2) is arranged at the entrance of radiation chamber, connect actuator, when neutron radioactive source carrier 9 is in running order, someone opens protective door when being strayed into radiation chamber, actuator can dead electricity (stepping motor will dead electricity) immediately, radioactive source carrier 9 under gravity, drops to subsurface safety screening-off position (bottom of stem pipe 8) in 2 seconds.
Actuator and time relay are arranged in circuit box 5, infrared switch 7 connecting time relay and stepping motor, circuit box 5 and infrared switch 7 can hang on support, and infrared switch 7 hangs on stem pipe 8 mouthfuls of a certain At The Heights in oblique upper, and this At The Height is safe altitude.In one embodiment, infrared switch 7 hangs on 5cm place, stem pipe 8 mouthfuls top.Under nominal situation, relay is in conducting state, when making radioactive source carrier 9 exceed safe altitude because of fault, infrared switch 7 action makes time relay be in off-state in setting-up time, actuator can dead electricity immediately, active source and radioactive source carrier drop to subsurface safety screening-off position in 2 seconds under gravity, subsequently, time relay will automatically reset, and make neutron source remote control recover to promote controlling functions.
As shown in Figure 1, be provided with controller (such as PMC100 uniaxiality controller) and power supply in control cabin, controller connects actuator and power supply, and power supply is connected with threshold switch and actuator successively successively by time relay.Controller realizes the ascending, descending active source font actions such as startup, acceleration, lifting, deceleration, stopping by operation procedure.
Pass through controller, actuator (such as YKA3606MA subdivision driver) pulse count can be set to regulate hoisting speed and the acceleration at stall of starting loop, radioactive source carrier 9, to guarantee that radioactive source carrier 9 steadily promotes, long-time lifting positioning height fluctuation≤± 0.5mm, and guarantee to promote active source continuous 10 times, radiation field field intensity counting is reproducible in ± 0.5%.
In one embodiment, in radiation chamber, be also provided with emergency stop switch, be connected between threshold switch and time relay, like this, connect successively between power supply with actuator time relay, emergency stop switch and threshold switch.When an emergency happens, by pressing emergency stop switch, actuator can dead electricity immediately, and radioactive source carrier 9 can drop to subsurface safety screening-off position in 2 seconds under gravity.Threshold switch, emergency stop switch, time relay are connected between actuator and power supply successively, and any part disconnects and all can make actuator dead electricity, and radioactive source carrier cannot promote or return and drop to security mask position, realize safety interlocking function.
In one embodiment, as shown in Figure 3, reel main body 33 is provided with spirality winding line groove 32, avoids the rope overlap wrapping promoting active source.Reel main body 33 can be supported by reel support 34, and this reel support 34 can be reel steel bracket.
Steel rope 4 generally selects fine and soft steel rope, can ensure that it can be closely docile and obedient in winding slot 32 in the process promoting radioactive source carrier 9, and when can ensure to work long hours, its total length extends and is no more than 0.5mm.
It should be noted that, in the utility model, require that radioactive source carrier 9 is less than the rotating torque that stepping motor 1 produces on reel 2 and the hold torque produced under power-up state by the moment that steel rope 4 produces on reel 2, be greater than the moment that bont itself produces under off-position, guarantee that radioactive source carrier 9 can be promoted and be stabilized to certain altitude.
Utilize neutron source remote control of the present utility model, when normally working, can ensure that radioactive source carrier promotes in-placing precision, improve the repeatability of observed data.When occurring that personnel are strayed into, press emergency stop switch or active source and promote when surmounting the unforeseen circumstancess such as safe altitude, active source can drop to subsurface safety screening-off position fast.In addition, the mechanical drive structure of neutron source remote control is simple, and control system is easy to operate.
Apply specific embodiment in the utility model to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a neutron source remote control, is characterized in that, described neutron source remote control comprises: control cabin and radiation chamber;
Be provided with in described radiation chamber: support, stepping motor, reel, pulley, steel rope, circuit box, infrared switch, stem pipe, radioactive source carrier and threshold switch;
Described pulley is fixed on described support; Described circuit box and infrared switch hang on described support, are equiped with actuator and time relay in described circuit box, and described infrared switch connects described time relay and stepping motor; Described stepping motor and reel are coaxially arranged; Described steel rope one end is fixed on described reel, is connected after the other end walks around described pulley with described radioactive source carrier; Below ground is imbedded in the bottom of described stem pipe, and described radioactive source carrier can move up and down under the traction of described steel rope in described stem pipe; Described threshold switch is arranged at the entrance of described radiation chamber;
Be provided with controller and power supply in described control cabin, described controller connects described actuator, and described power supply is connected with described threshold switch and actuator successively by described time relay.
2. neutron source remote control according to claim 1, is characterized in that, described neutron source remote control also comprises: emergency stop switch, is arranged in described radiation chamber, is connected between described threshold switch and time relay.
3. neutron source remote control according to claim 1, is characterized in that, described reel is provided with spirality winding line groove.
4. neutron source remote control according to claim 1, is characterized in that, described neutron source remote control also comprises: reel support, for supporting described reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638944.1U CN204938822U (en) | 2015-08-21 | 2015-08-21 | A kind of neutron source remote control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638944.1U CN204938822U (en) | 2015-08-21 | 2015-08-21 | A kind of neutron source remote control |
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| Publication Number | Publication Date |
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| CN204938822U true CN204938822U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520638944.1U Active CN204938822U (en) | 2015-08-21 | 2015-08-21 | A kind of neutron source remote control |
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| CN (1) | CN204938822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509717A (en) * | 2020-11-27 | 2021-03-16 | 中广核检测技术有限公司 | Source pipe pushing and lifting device for in-service inspection of claw gasket of control rod drive mechanism |
-
2015
- 2015-08-21 CN CN201520638944.1U patent/CN204938822U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509717A (en) * | 2020-11-27 | 2021-03-16 | 中广核检测技术有限公司 | Source pipe pushing and lifting device for in-service inspection of claw gasket of control rod drive mechanism |
| CN112509717B (en) * | 2020-11-27 | 2023-05-02 | 中广核检测技术有限公司 | Source guiding pipe lifting device for in-service inspection of claw gaskets of control rod driving mechanism |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401 gate a, 201, No. a 10 Jiuxianqiao North Road, Chaoyang District, Beijing 100015 Patentee after: Beijing Ray Application Research Center Co.,Ltd. Address before: 401 gate a, 201, No. a 10 Jiuxianqiao North Road, Chaoyang District, Beijing 100015 Patentee before: BEIJING RADIATION APPLICATION RESEARCH CENTER |