CN102595040A - Underwater small radiation-resistant photographing device - Google Patents
Underwater small radiation-resistant photographing device Download PDFInfo
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- CN102595040A CN102595040A CN2012100613001A CN201210061300A CN102595040A CN 102595040 A CN102595040 A CN 102595040A CN 2012100613001 A CN2012100613001 A CN 2012100613001A CN 201210061300 A CN201210061300 A CN 201210061300A CN 102595040 A CN102595040 A CN 102595040A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to an underwater small radiation-resistant photographing device. A shell consists of a lens cap, a cylinder and a rear end cover; the lens cap is in force fit with a lead-containing radiation-resistant optical glass sheet and connected to one end of the cylinder through threads; the other end of the cylinder is in threaded connection with the rear end cover; the rear end cover is connected with a cable joint; the cable joint is connected with a cable; four light emitting diode (LED) illumination lamps are uniformly arranged around a camera; a first sealed chamber and a second sealed chamber which are respectively independent are arranged in the cylinder; the camera and the LED illumination lamps are arranged in the first sealed chamber, a circuit board is arranged in the second sealed chamber, and all joints are sealed by adopting O-shaped rings; and according to the radiation condition, a gamma or neutron radiation shielding module layer is arranged outside the shell, and a third sealed chamber is arranged in the gamma or neutron radiation shielding module layer. By integrated design of auxiliary illumination and the camera, installation and operation of a system are facilitated, the moving condition of an underwater refueling machine of a nuclear power plant in the water is learnt, and help is provided for underwater positioning of the refueling machine.
Description
Technical field
The invention belongs to the video monitoring devices field, relate to a kind of small-sized radiation hardness camera head under water, the ruuning situation that is particularly useful for supervising nuclear power station fuel and equipment.
Background technology
In a single day the used nuclear fuel of nuclear power " is lighted " except that producing huge heat energy and is used to also discharge the personal safety that extremely strong radioactive substance is threatening the staff the generating.Television pickup system is the important aid that people supervise nuclear power station fuel and equipment operation situation, and it can be presented at confession staff observation on the video screen in real time with the things that is in the heavy radiation field.Nuclear radiation environment is one of adverse circumstances that exist at present, and the television system of under this environment, working all can receive in various degree damage and destruction.The significant amount of energy that nuclear reaction discharged is to come out through the circulation extraction of cooling agent (being generally pure water), thus the inner camera system most of the time of nuclear power station be in the underwater operation state, equipment must be noted that waterproof sealing.And the Underwater Camera of prior art can not tolerate radiation, can not accomplish internal illumination and advantages of small volume.
Summary of the invention
Problem to be solved by this invention is; Overcome the deficiency of prior art, a kind of small-sized under water radiation hardness camera head is provided, adopt withstand voltage, corrosion resistant watertight housings; The housing interface of complete machine adopts the sealing of O type circle; Different gas or liquid medium can inject, to reach the purpose of radiation-screening in inner two the first independent sealed separately sealed chamber and second sealed chamber of separating of complete machine in different chambers; And can be transmitted to the housing outer wall to heat through liquid medium, with the video capture that satisfies the operation of nuclear power station wet refuelling and the needs of supervision.
The present invention solves its technical problem and takes following technical scheme to realize:
According to a kind of small-sized under water radiation hardness camera head provided by the invention, comprise housing and the camera, LED illuminating lamp and the circuit board that are contained in the housing, described housing is made up of camera lens cap, cylinder and rear end cap; Camera lens cap and leaded radiation hardness optical glass sheet compression fit, through being threaded onto an end of cylinder, the other end of the cylinder rear end cap that is threaded; Rear end cap stube cable joint, cable joint is connected with cable, four LED illuminating lamps be evenly arranged in camera around; Be provided with two independently first sealed chamber and second sealed chamber separately in the cylinder; Camera, LED illuminating lamp are contained in first sealed chamber, and circuit board is contained in second sealed chamber, is marked with inert gas in first sealed chamber; Sealing ring one is equipped with at leaded radiation hardness optical glass sheet place; Sealing ring two is equipped with at camera lens cap place, and sealing ring four is equipped with at the independent separate place that sealing ring three, the first sealed chamber and second sealed chamber are equipped with in the rear end cap place.
It is to take following technical scheme further to realize that the present invention solves its technical problem:
Aforesaid housing is provided with shielding γ or neutron irradiation module layer outward; Be provided with the 3rd sealed chamber in shielding γ or the neutron irradiation module layer; Be filled with lead layer or paraffin layer in the 3rd sealed chamber; γ or the adaptive camera lens cap of neutron irradiation module layer are replaced by and are shielded to the camera lens cap, with shielding γ or the adaptive camera lens cap place of neutron irradiation module layer sealing ring five is being housed, and at shielding γ or neutron irradiation module layer and rear end cap place sealing ring six is housed.
Be marked with inert gas in aforesaid first sealed chamber.
Be marked with silicone oil in aforesaid second sealed chamber.
The present invention compared with prior art has significant advantage and beneficial effect:
The present invention adopts the CMOS camera, and general radiation hardness material is not had a radiation proof function, and promptly such material can bear the radiation of long period and not destroy its performance, but it does not have attenuation to gamma-rays, and this is mainly reflected on the optical glass.When the pick-up lens of being processed by common radiation hardness optical glass is used for radiation field work; Gamma-rays still can pass the through cmos sensor of optical lens easily; And radiation intensity does not receive very high attenuation, and this damages cmos sensor easily, thereby influences the life-span of whole system.Afterwards, the radiation hardness radiation proof material was constantly developed, and this type material also has attenuation to gamma-rays except that itself having the radiation hardness function.As adopting gamma-rays is had the leaded radiation hardness optical glass ZF7 than the overdamp function, and be placed on the camera lens front portion, can reduce gamma-rays quantity greatly, prolong the working life of system through optical lens.Structural design of the present invention is except that radiation hardening, and a key issue is a watertight.The sealing means that we adopt end face seal to combine with radial seal.Designed reliable withstand voltage, corrosion resistant watertight housings, the housing interface of complete machine adopts the sealing of O type circle; Different gas or liquid can inject in inner two the first independent sealed separately sealed chamber and second sealed chamber of separating of complete machine in different chambers, reaching the purpose of radiation-screening, and can be transmitted to the housing outer wall to heat through liquid.The structural design of complete machine is based upon on the composite factor basis of optics, video technique, circuit design, Precision Machinery Design and technology, material; After adopting above-mentioned measure, the pressure test of system and submerged applications evidence, the water sealing property of native system under 1MPa pressure is good.
The present invention is installed among the gap between the inner and outer sleeves of robot device; Extend into reactor inside target is carried out to picture; The information of being caught through photoelectric conversion device convert to the signal of telecommunication by cable transmission to the display that is positioned at nuclear power station obturator outside; Can be implemented in the scene supervision of safety zone to nuclear power station internal work situation; Possess basic demands such as gamma ray resistant radiation, anti-neutron ray radiation, water pressure resistance, weak acid resistant,, also possess characteristics such as small-sized, light, stable height in addition owing to the condition of occasion use to be installed to limit.
Embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is an external structure sketch map of the present invention;
Fig. 2 is an internal structure sketch map of the present invention;
Fig. 3 is an optional shroud module sketch map of the present invention;
Fig. 4 is an installation site of the present invention sketch map.
Wherein: 1; Camera lens cap 1 ＇; With shielding γ or the adaptive camera lens cap 2 of neutron irradiation module layer; Cylinder 3; Rear end cap 4; Camera 5; LED illuminating lamp 6; Cable 7; Cable joint 8; Leaded radiation hardness optical glass sheet 9; Sealing ring 1; Sealing ring 2 11; Sealing ring 3 12; Sealing ring 4 13; First sealed chamber 14; Second sealed chamber 15; Circuit board 16; Shielding γ or neutron irradiation module layer 17 sealing rings 5 18; Sealing ring 6 19; The 3rd sealed chamber 20; Display 21; Nuclear power station refueling machine 22; Manipulator outer sleeve 23; Manipulator inner sleeve 24; Small-sized under water radiation hardness camera head 25; The water that contains boric acid.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, characteristic and effect thereof, specify as after.
A kind of small-sized under water radiation hardness camera head shown in Fig. 1～2 comprises housing and the camera, LED illuminating lamp and the circuit board that are contained in the housing, and described housing is made up of camera lens cap, cylinder and rear end cap; Housing is withstand voltage watertight case, and its total length 190mm is divided into the camera lens cap of φ 35mm, the cylinder of φ 31mm and the rear end cap of φ 31mm; The camera lens cap can be changed; Camera lens cap 1 and leaded radiation hardness optical glass sheet (ZF7) 8 compression fit, through being threaded onto an end of cylinder 2, the other end of the cylinder rear end cap 3 that is threaded; Rear end cap stube cable joint 7; Cable joint is connected with cable 6, and wherein cable joint is withstand voltage watertight cable joint, and cable is a radiation hardness 1E level K3 class low-smoke halogen-free cable; The LED illuminating lamp 5 of four high brightness be evenly arranged in camera 4 around; Camera adopts the CMOS camera, because light source has considerable influence to pick-up lens, for improving " interference " influence to pick-up lens of LED illuminating lamp; Pick-up lens is pressed close to lead glass, cut off reflection channel; Be provided with two independently first sealed chamber and second sealed chamber separately in the cylinder; Camera, LED illuminating lamp are contained in first sealed chamber; Circuit board 15 is contained in second sealed chamber, and sealing ring 1 is equipped with at leaded radiation hardness optical glass sheet place, and sealing ring 2 10 is equipped with at camera lens cap place; Sealing ring 3 11 is equipped with at the rear end cap place, and sealing ring 4 12 is equipped with at the independent separate place of first sealed chamber 13 and second sealed chamber 14.Be marked with the inert gas argon gas in first sealed chamber, guarantee that the camera lens zone can not produce fog.Be marked with silicone oil in second sealed chamber and effectively solved the problem of underwater sealing and internal circuit heat radiation and insulation.The camera place has the thick stainless steel of 3mm, the thick ledrite of 4mm to carry out emphasis shielding gamma-rays.
Because water to absorption of visible light and scattering, makes that the energy when light transmits is promptly decayed by index law in water.The decay of light in water is by attenuation by absorption and the water-borne glue body particle of water to light scattering of light to be caused; And water makes the captured image of underwater television to scattering of light; The picture contrast reduces, and the details of image is fuzzy, has influenced image quality; Must be furnished with artificial auxiliary lighting system but since water to the scattering of light effect, the only simple power that strengthens illuminating lamp can not improve image quality and observed range.Prove that through repetition test under the prerequisite of video camera imaging permission, illumination light weakens on the contrary can improve image quality under water.The built-in LED illuminating lamp of small-sized under water radiation hardness camera head, the sensitivity of video camera is higher.Must bear certain hydrostatic pressing during the underwater optics system works, especially to deep water system.The intensity that enough anti-static pressure therefore must first lens of assurance system be arranged.And contain boric acid in the water of nuclear power station, and the video camera main frame must protect, in order to avoid damaged with other by the corrosion of underwater environment, the every increase of the depth of water just increases by 1 air pressure for ten meters, and therefore, the design of shell shape must guarantee to have resistance to compression and good sealing property.
As shown in Figure 3; The present invention can also be according to radiation event; Outside cylinder, be provided with shielding γ or neutron irradiation module layer (customizable thickness) 16; γ or adaptive camera lens cap 1 ＇ of neutron irradiation module layer can are replaced by and shield to the camera lens cap, with shielding γ or the adaptive camera lens cap place of neutron irradiation module layer sealing ring 5 17 is housed, and sealing ring 6 18 is equipped with at shielding γ or neutron irradiation module layer and rear end cap place.Be provided with the 3rd independent sealed sealed chamber 19 in shielding γ or the neutron irradiation module layer, shielding γ or neutron irradiation module layer are multilayer screen γ or neutron irradiation module layer, can be to the shielding of senser emphasis.According to concrete environmental radiation situation, can inject the γ radiation of certain thickness lead screen different-energy in the 3rd sealed chamber or inject the neutron irradiation that certain thickness paraffin shields different-energy.
As shown in Figure 4; Use above-mentioned small-sized radiation hardness camera head 24 to be installed between the manipulator inner sleeve 23 and outer sleeve 22 of nuclear power station refueling machine 21 under water, get into the 25 times monitoring of water contain boric acid, the auxiliary operation and image is presented on the display 20 in real time of reloading.
The present invention has following function:
(1) the nuclear power station refueling machine reload the operation monitoring and the operation assist location
Can understand refueling machine underwater moving state through this small-sized radiation hardness camera head under water, and whether refueling machine put with being connected with the action of loading and unloading material of fuel assembly in place.
(2) the complete situation of Real Time Observation fuel assembly
Can in loading and unloading material process accomplish supervision to fuel assembly and control rod, the checking of fuel assembly numbering through this small-sized radiation hardness camera head under water.
Claims (4)
1. a small-sized under water radiation hardness camera head comprises housing and the camera, LED illuminating lamp and the circuit board that are contained in the housing, and it is characterized in that: described housing is made up of camera lens cap, cylinder and rear end cap; Camera lens cap and leaded radiation hardness optical glass sheet compression fit, through being threaded onto an end of cylinder, the other end of the cylinder rear end cap that is threaded; Rear end cap stube cable joint, cable joint is connected with cable, four LED illuminating lamps be evenly arranged in camera around; Be provided with two independently first sealed chamber and second sealed chamber separately in the cylinder; Camera, LED illuminating lamp are contained in first sealed chamber, and circuit board is contained in second sealed chamber, is marked with inert gas in first sealed chamber; Sealing ring one is equipped with at leaded radiation hardness optical glass sheet place; Sealing ring two is equipped with at camera lens cap place, and sealing ring four is equipped with at the independent separate place that sealing ring three, the first sealed chamber and second sealed chamber are equipped with in the rear end cap place.
2. small-sized under water radiation hardness camera head according to claim 1; It is characterized in that: described housing is provided with shielding γ or neutron irradiation module layer outward; Be provided with the 3rd sealed chamber in shielding γ or the neutron irradiation module layer; Be filled with lead layer or paraffin layer in the 3rd sealed chamber; γ or the adaptive camera lens cap of neutron irradiation module layer are replaced by and are shielded to the camera lens cap, with shielding γ or the adaptive camera lens cap place of neutron irradiation module layer sealing ring five is being housed, and at shielding γ or neutron irradiation module layer and rear end cap place sealing ring six is housed.
3. small-sized under water radiation hardness camera head according to claim 1 is characterized in that: be marked with inert gas in described first sealed chamber.
4. small-sized under water radiation hardness camera head according to claim 1 is characterized in that: be marked with silicone oil in described second sealed chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061300.1A CN102595040B (en) | 2012-03-09 | 2012-03-09 | Underwater small radiation-resistant photographing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061300.1A CN102595040B (en) | 2012-03-09 | 2012-03-09 | Underwater small radiation-resistant photographing device |
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| Publication Number | Publication Date |
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| CN102595040A true CN102595040A (en) | 2012-07-18 |
| CN102595040B CN102595040B (en) | 2014-10-29 |
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| CN201210061300.1A Active CN102595040B (en) | 2012-03-09 | 2012-03-09 | Underwater small radiation-resistant photographing device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719716A (en) * | 2014-12-04 | 2016-06-29 | 中国辐射防护研究院 | Method for reducing shielding weight of radiation-resistant robot |
| CN106488086A (en) * | 2015-08-28 | 2017-03-08 | 上海交通大学 | 4500m level wide angle cameras under water |
| CN106488085A (en) * | 2015-08-28 | 2017-03-08 | 上海交通大学 | 6000m level underwater miniature video camera |
| CN107702005A (en) * | 2017-11-13 | 2018-02-16 | 广州天地智能科技有限公司 | It is a kind of dissipate less, the strong Underwater Optical compensation device of penetration power |
| WO2018157397A1 (en) * | 2017-03-03 | 2018-09-07 | 核动力运行研究所 | Panoramic camera device |
| CN109121374A (en) * | 2017-06-23 | 2019-01-01 | 中广核达胜加速器技术有限公司 | Camera screening arrangement and method under a kind of strong irradiation field |
| CN109374582A (en) * | 2018-10-26 | 2019-02-22 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| WO2019061096A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳市大疆灵眸科技有限公司 | Housing assembly and photography device having same |
| CN109660758A (en) * | 2018-11-26 | 2019-04-19 | 中广核核电运营有限公司 | A kind of nuclear power station reactor core underwater wireless high definition photographic means and system |
| CN111413838A (en) * | 2019-04-08 | 2020-07-14 | 蓝天海集团有限公司 | Conversion lens |
| CN112362166A (en) * | 2020-10-30 | 2021-02-12 | 温州樱弧服装有限公司 | Underwater infrared thermal imager |
| CN113329154A (en) * | 2021-05-24 | 2021-08-31 | 杭州海康威视数字技术股份有限公司 | Spherical camera |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719716A (en) * | 2014-12-04 | 2016-06-29 | 中国辐射防护研究院 | Method for reducing shielding weight of radiation-resistant robot |
| CN106488086A (en) * | 2015-08-28 | 2017-03-08 | 上海交通大学 | 4500m level wide angle cameras under water |
| CN106488085A (en) * | 2015-08-28 | 2017-03-08 | 上海交通大学 | 6000m level underwater miniature video camera |
| WO2018157397A1 (en) * | 2017-03-03 | 2018-09-07 | 核动力运行研究所 | Panoramic camera device |
| CN109121374A (en) * | 2017-06-23 | 2019-01-01 | 中广核达胜加速器技术有限公司 | Camera screening arrangement and method under a kind of strong irradiation field |
| WO2019061096A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳市大疆灵眸科技有限公司 | Housing assembly and photography device having same |
| CN107702005A (en) * | 2017-11-13 | 2018-02-16 | 广州天地智能科技有限公司 | It is a kind of dissipate less, the strong Underwater Optical compensation device of penetration power |
| CN109374582A (en) * | 2018-10-26 | 2019-02-22 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| CN109660758A (en) * | 2018-11-26 | 2019-04-19 | 中广核核电运营有限公司 | A kind of nuclear power station reactor core underwater wireless high definition photographic means and system |
| CN109660758B (en) * | 2018-11-26 | 2020-10-13 | 中广核核电运营有限公司 | Underwater wireless high-definition photographing device and system for nuclear power station reactor core |
| CN111413838A (en) * | 2019-04-08 | 2020-07-14 | 蓝天海集团有限公司 | Conversion lens |
| CN111413838B (en) * | 2019-04-08 | 2023-02-03 | 蓝天海集团有限公司 | Conversion lens |
| CN112362166A (en) * | 2020-10-30 | 2021-02-12 | 温州樱弧服装有限公司 | Underwater infrared thermal imager |
| CN113329154A (en) * | 2021-05-24 | 2021-08-31 | 杭州海康威视数字技术股份有限公司 | Spherical camera |
| CN113329154B (en) * | 2021-05-24 | 2023-04-07 | 杭州海康威视数字技术股份有限公司 | Spherical camera |
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