CN111785405A - Remote pneumatic transport filling type shielding device based on Venturi tube - Google Patents
Remote pneumatic transport filling type shielding device based on Venturi tube Download PDFInfo
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- CN111785405A CN111785405A CN202010547354.3A CN202010547354A CN111785405A CN 111785405 A CN111785405 A CN 111785405A CN 202010547354 A CN202010547354 A CN 202010547354A CN 111785405 A CN111785405 A CN 111785405A
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- Prior art keywords
- shielding
- shielding material
- pressure air
- shell
- borne
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
- G21F7/068—Remotely manipulating devices for fluids
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
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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
Abstract
The invention provides a venturi tube-based remote pneumatic transport filling type shielding device, which comprises: the high-pressure air-borne device, and respectively with shielding material storage device, transport pipe device and the high-pressure air feeder that high-pressure air-borne device vacuum end, high-speed efflux end and middle part are connected, transport the hollow shielding shell of pipe device other end connection, the granular shielding material has been put in the shielding material storage device. The Venturi tube-based remote pneumatic transport filling type shielding device can avoid the installation operation of personnel on shielding materials with large volume and mass at a radiation hot point, reduce the operation time and labor intensity of the personnel at the hot point, and effectively save the collective dosage borne by field installation personnel.
Description
Technical Field
The invention belongs to the technical field of radiation protection, and particularly relates to a remote pneumatic transport filling type shielding device based on a Venturi tube.
Background
In order to reduce the collective dose of occupational exposure personnel during shutdown and maintenance of a nuclear power plant, engineering control measures such as temporary shielding devices and the like are the primary means for radiation protection of occupational personnel before management control measures are implemented and personal protection equipment is used. For radiation hot spot areas with high ambient dose rate and needing to be overhauled, before the maintainers are allowed to enter the relevant areas to carry out work, the construction of the temporary shielding device is a necessary protective measure and is an important measure for reducing the exposure dose of the staff during the shutdown and overhaul of the nuclear power plant.
The conventional temporary shielding device is generally made of heavy metals such as lead, tungsten and the like, has relatively large mass and has a plurality of defects in the actual use process. Therefore, there is a need to provide a venturi-based remote pneumatic transport filled shielding device to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the Venturi tube-based remote pneumatic transport filling type shielding device, which can avoid the installation operation of personnel on shielding substances with large volume and mass at a radiation hot spot, reduce the operation time and labor intensity of the personnel at the hot spot and effectively save the collective dosage borne by field installation personnel.
In order to achieve the above purposes, the invention adopts a technical scheme that: a venturi-based remote pneumatic transport filled barrier apparatus, said apparatus comprising:
the high-pressure air-borne device, and respectively with shielding material storage device, transport pipe device and the high-pressure air feeder that high-pressure air-borne device vacuum end, high-speed efflux end and middle part are connected, transport the hollow shielding shell of pipe device other end connection, the granular shielding material has been put in the shielding material storage device.
Furthermore, the hollow shielding shell is connected by two semicircular shells in a stepped manner.
Furthermore, the hollow shielding shell is provided with a full-filling early warning device on the upper part of the shell, and when shielding particles filled in the shell reach a preset volume, an early warning signal is sent out.
Further, the shielding material containing device comprises a flow meter and a valve, and the flow meter and the valve are used for monitoring and controlling the particle flow.
Further, shielding material storage device still includes moving platform, moving platform is used for on-the-spot delivery granular shielding material.
Further, the high-pressure air supply device comprises an air compressor, an air storage tank, an oil stain filter, a micro-object filter, a pressure stabilizing valve, a flow meter and a stop valve which are connected in sequence.
Further, high pressure gas carrier device includes evenly distributed's venturi, the venturi is 8 at least.
Further, the device also comprises a panel control system, and the panel control system is used for collecting data of all parts in the device and making feedback.
The shielding device has the advantages that the shielding device can avoid the installation operation of personnel on shielding substances with large volume and mass at the radiation hot spot, reduce the operation time and labor intensity of the personnel at the hot spot and effectively save the collective dose borne by the field installation personnel.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a venturi-based remote pneumatic transport filled shielding device according to the present invention;
FIG. 2 is a schematic structural view of an embodiment of the hollow shielding shell of the present invention;
fig. 3 is a schematic structural view of an embodiment of an external high pressure gas carrier apparatus according to the present invention;
fig. 4 is a schematic structural view of an embodiment of an inner ring of a high pressure gas carrier device according to the present invention.
In the figure: 1-high pressure gas carrier; 2-shielding substance containing means; 3-transporting the pipe means; 4-high pressure air supply device; 5-a hollow shielding shell; 6-a particulate shielding material; 11-leading outer ring; 12-postero-outer ring; 13-inner ring; 14-a venturi tube; 41-an air compressor; 42-a gas storage tank; 43-oil stain filter; 44-micro-object filters; 45-a pressure maintaining valve; 46-a flow meter; 47-stop valve.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be further described in detail with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a venturi-based remote pneumatic transport filling type shielding device according to the present invention. The invention provides a remote pneumatic transmission filling type shielding device based on a Venturi tube 13, which comprises: the device comprises a high-pressure air-borne device 1, and a shielding material storage device 2, a conveying pipeline device 3 and a high-pressure air supply device 4 which are connected with the vacuum end, the high-speed jet end and the middle part of the high-pressure air-borne device 1 respectively. The other end of the conveying pipeline device 3 is connected with a hollow shielding shell 5. A granular shielding material 6 is placed in the shielding material storage device 2.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the hollow shielding shell according to the present invention. The hollow shielding shell 5 adopts a portable modular design and is connected by two semicircular shells in a stepped manner so as to reduce leakage gaps at seams. The hollow shielding shell 5 is provided with a full-filling early warning device at the upper part of the shell, and sends out an early warning signal when shielding particles filled in the shell reach a preset volume.
The shielding material containment device 2 includes a flow meter and a valve for monitoring and controlling the flow of particles. The shielding material containing device 2 further comprises a moving platform for carrying the granular shielding material 6 on site.
The high-pressure air supply device 4 comprises an air compressor 41, an air storage tank 42, an oil stain filter 43, a micro-object filter 44, a pressure stabilizing valve 45, a flow meter 46 and a stop valve 47 which are connected in sequence. The high-pressure air supply device 4 supplies clean high-pressure air to the high-pressure air carrier device 1.
Referring to fig. 3-4, fig. 3 is a schematic structural view of an embodiment of an exterior of the high pressure gas carrier apparatus of the present invention, and fig. 4 is a schematic structural view of an embodiment of an inner ring of the high pressure gas carrier apparatus of the present invention. The high-pressure gas carrier device 1 comprises a front outer ring 11, a rear outer ring 12 and an inner ring 13. The front outer ring 11 and the rear outer ring 12 are both connected by a thread and an inner ring 13. The high-pressure gas carrier device 1 further comprises 8 venturi tubes 14 which are uniformly distributed on the inner ring 13, wherein the number of the venturi tubes 14 is at least 8. The high-pressure air-carrying device 1 further pressurizes the high-pressure air introduced into the high-pressure air-carrying device through the air inlet by utilizing the annular pressurizing chamber, so that vacuum is generated at the inlet at the front end, the granular shielding materials 6 are sucked from the shielding material accommodating device 2, high-speed jet flow is generated at the rear end, the granular shielding materials 6 are driven to enter the conveying pipeline device 3 at a high speed and are filled into the hollow shielding shell 5, and the integral installation operation of the device is completed.
The device also comprises a panel control system which is used for collecting data of all parts in the device and making feedback. For example, by collecting the warning signal of the warning device in the hollow shielding shell 5, the warning can be synchronously sent out and the shielding particle inlet can be closed. In another specific implementation, the tablet control system is connected with the shielding material containing device 2 through bluetooth, so as to collect the flow of the shielding material containing device 2 in real time, and meanwhile, the tablet control system can remotely control the in-out speed of particles of the shielding material.
The shielding device takes air as a transport medium, utilizes an optimally designed high-pressure air-borne device to remotely transport granular shielding substances into a hollow shielding shell installed at a radiation hot spot for filling, and accordingly completes shielding operation on the radiation hot spot. When the shielding device is used for protecting radiation hotspots, only a light hollow shell needs to be installed at the hotspots, long-time operation caused by installation of a large-mass shielding body is avoided, and the collective dosage received by personnel during installation of the shielding body can be effectively reduced.
It will be appreciated by persons skilled in the art that the apparatus of the present invention is not limited to the embodiments described in the specific embodiments, and that the above detailed description is for the purpose of illustrating the invention only and is not intended to limit the invention. Other embodiments will be apparent to those skilled in the art from the following detailed description, which is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A venturi-based remote pneumatic transport filled barrier apparatus, comprising: the high-pressure air-borne device, and respectively with shielding material storage device, transport pipe device and the high-pressure air feeder that high-pressure air-borne device vacuum end, high-speed efflux end and middle part are connected, transport the hollow shielding shell of pipe device other end connection, the granular shielding material has been put in the shielding material storage device.
2. The apparatus of claim 1, wherein the hollow shielded housing is stepped from two semi-circular housings.
3. The apparatus of claim 2, wherein the hollow shielding shell is provided with a full charge warning device at an upper portion of the shell, and the warning device sends a warning signal when shielding particles filled in the shell reach a predetermined volume.
4. The apparatus of claim 1, wherein the shielding material containment device comprises a flow meter and a valve for monitoring and controlling particle flow.
5. The apparatus of claim 1, wherein the shielding material receiving apparatus further comprises a mobile platform for carrying the particulate shielding material on-site.
6. The device of claim 1, wherein the high-pressure air supply device comprises an air compressor, an air storage tank, an oil stain filter, a micro-object filter, a pressure stabilizing valve, a flow meter and a stop valve which are connected in sequence.
7. The apparatus of claim 1, wherein the high pressure gas carrier comprises a uniform distribution of at least 8 venturi tubes.
8. The device of any of claims 1-7, further comprising a tablet control system for collecting data and making feedback on components in the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547354.3A CN111785405A (en) | 2020-06-16 | 2020-06-16 | Remote pneumatic transport filling type shielding device based on Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547354.3A CN111785405A (en) | 2020-06-16 | 2020-06-16 | Remote pneumatic transport filling type shielding device based on Venturi tube |
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| CN111785405A true CN111785405A (en) | 2020-10-16 |
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| CN202010547354.3A Pending CN111785405A (en) | 2020-06-16 | 2020-06-16 | Remote pneumatic transport filling type shielding device based on Venturi tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113128089A (en) * | 2021-04-07 | 2021-07-16 | 中国辐射防护研究院 | Design method and device of high-density shielding material particle pneumatic conveying device |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113128089A (en) * | 2021-04-07 | 2021-07-16 | 中国辐射防护研究院 | Design method and device of high-density shielding material particle pneumatic conveying device |
| CN113128089B (en) * | 2021-04-07 | 2022-10-21 | 中国辐射防护研究院 | Design method and device of high-density shielding material particle pneumatic conveying device |
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