CN115113262A - Instrument pipeline, radiation monitoring system and radiation monitoring method - Google Patents
Instrument pipeline, radiation monitoring system and radiation monitoring method Download PDFInfo
- Publication number
- CN115113262A CN115113262A CN202210879873.9A CN202210879873A CN115113262A CN 115113262 A CN115113262 A CN 115113262A CN 202210879873 A CN202210879873 A CN 202210879873A CN 115113262 A CN115113262 A CN 115113262A
- Authority
- CN
- China
- Prior art keywords
- radiation
- sleeve
- room
- detector
- process equipment
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses an instrument pipeline, a radiation monitoring system and a radiation monitoring method, wherein the instrument pipeline comprises a sleeve and a shielding body, one end of the sleeve is communicated with the outside of a high-radiation process room, the other end of the sleeve penetrates through a cover plate and extends into the high-radiation process room, the shielding body is sleeved on the end part of the sleeve extending into the high-radiation process room and used for shielding other radioactive rays in the high-radiation process room, and a collimation hole is formed in the shielding body and can face process equipment in the high-radiation process room. The instrument pipeline can effectively reduce the interference of other rays in the environment to the detector, so that the radiation measuring instrument can accurately measure the radioactive dose in a high-radiation process room.
Description
Technical Field
The invention belongs to the technical field of nuclear industry, and particularly relates to an instrument pipeline, a radiation monitoring system comprising the instrument pipeline, and a radiation monitoring method.
Background
The interior of a nuclear facility typically has a high radiation level in a portion of the room that extends below the ceiling of the top floor to a portion of the process equipment. The space below the floor is a high dose room and the space above the floor is a human overhaul area, and process equipment in the high dose room (high radiation process room) is usually required to be tested.
In the prior art, it is common to place radiation measuring instruments directly in the high dose room to measure the radiation dose rate of the process equipment in the high dose room. However, the radiation measuring instrument placed in the high-dose room is easily affected by other rays in the high-dose room, and the environmental interference factor is large, and the radiation measuring instrument needs to continuously measure for a long time, and personnel cannot enter the high-dose room to disassemble and replace the instrument, so that the radioactive dose of the process equipment in the high-dose room cannot be accurately measured, and further, the actual condition of the process equipment cannot be judged by the operator. In addition, the radiation measuring instruments have the requirements of regular maintenance, calibration and replacement, and the maintenance and replacement of the radiation measuring instruments installed in a high-dose room are very difficult.
Disclosure of Invention
The invention aims to solve the technical problem of providing an instrument pipeline, a radiation monitoring system comprising the instrument pipeline and a radiation monitoring method aiming at the defects in the prior art. By adopting the instrument pipeline, the interference of other rays in the environment to the detector can be effectively reduced, so that the radiation measuring instrument can accurately measure the radioactive dose in a high radiation process room.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides an instrument pipeline, includes sleeve and shield, telescopic one end and the outside intercommunication in high radiation technology room, telescopic other end passes the apron and stretches into in the high radiation technology room, the shield cover is established the sleeve stretches into on the tip in high radiation technology room for shield other radioactive ray in the high radiation technology room, and seted up the collimation hole on the shield, the collimation hole can be to the technological equipment in the high radiation technology room, so that the detection range of the detector of setting in the sleeve can cover whole technological equipment.
Preferably, the shielding body is sleeved on the end portion of the sleeve, a sealing cover is arranged at the bottom end of the shielding body, the collimating hole is formed in the side wall of the shielding body, and the cross section of the collimating hole is in the shape of a ring sector.
Preferably, the opening angle of the collimation hole is set to enable all radioactive rays generated by process equipment to pass through the collimation hole and enter the measurement range of the detector.
Preferably, the end of the sleeve projecting into the high emissivity process room is aligned with the end of the process equipment.
Preferably, the sleeve, the shield and the probe are provided with identical sets,
the number of the process equipment is multiple, and the number of the sleeves is consistent with that of the process equipment.
Preferably, a shielding plug is arranged at one end of the sleeve communicated with the outside, and a cable hole groove is formed in the shielding plug.
Preferably, the material of the sleeve is stainless steel.
The invention also provides a radiation monitoring system, which comprises a detector and the instrument pipeline, wherein the detector is arranged in the sleeve of the instrument pipeline and is positioned at a position corresponding to the collimating hole of the shielding body, and the detector is used for measuring the radiation dose rate.
The invention also provides a radiation monitoring method, which comprises the following steps:
a small hole is arranged on the outer wall of the high radiation process room,
the instrument pipeline of the radiation monitoring system is penetrated into the high radiation process room from the small hole, and the collimation hole on the instrument pipeline is aligned with the process equipment in the high radiation process room,
the detectors of the radiation monitoring system monitor the radiation dose of the process equipment through the collimating aperture.
Preferably, the location of the orifice corresponds to a location between two process devices.
The instrument pipeline can effectively reduce the interference of rays in the environment on the detector, so that the detector can accurately measure the radioactive dose of process equipment in a high-dose room, and the accuracy and the reliability of the monitoring data of the detector can be greatly improved.
Drawings
Fig. 1 is a schematic structural view of a radiation monitoring system in embodiment 2 of the present invention;
fig. 2 is a plan view of an instrument duct in embodiment 1 of the present invention.
In the figure: 1-sleeve, 2-shielding plug, 3-detector, 4-shielding body, 5-process equipment, 6-high radiation process room, 7-cover plate and 8-collimation hole.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
In the description of the present invention, it should be noted that the indication of orientation or positional relationship, such as "on" or the like, is based on the orientation or positional relationship shown in the drawings, and is only for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must be provided with a specific orientation, constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, e.g., as being fixedly or removably connected, or integrally connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention provides an instrument pipeline, which comprises a sleeve and a shielding body, wherein one end of the sleeve is communicated with the outside of a high-radiation process room, the other end of the sleeve penetrates through a cover plate and extends into the high-radiation process room, the shielding body is sleeved on the end part of the sleeve extending into the high-radiation process room and is used for shielding other radioactive rays in the high-radiation process room,
and the shielding body is provided with a collimation hole, and the collimation hole faces the process equipment in the high-radiation process room, so that the detection range of the detector arranged in the sleeve can cover the whole process equipment.
The invention also provides a radiation monitoring system, which comprises a detector and the instrument pipeline, wherein the detector is arranged in the sleeve of the instrument pipeline and is arranged at a position corresponding to the collimating hole of the shielding body.
The invention also provides a radiation monitoring method, which comprises the following steps:
a small hole is arranged on the outer wall of the high radiation process room,
the instrument pipeline of the radiation monitoring system is penetrated into the high radiation process room from the small hole, and the collimation hole on the instrument pipeline is aligned with the process equipment in the high radiation process room,
the detectors of the radiation monitoring system monitor the radiation dose of the process equipment through the collimating aperture.
Example 1
As shown in fig. 1, the present embodiment discloses an instrument duct, which includes a sleeve 1 and a shielding body 4, a cover plate 7 with shielding function is arranged on the top of a high radiation process room 6, a process device 5 of an extension part below the cover plate 7, and a space above the cover plate 7 is an personnel overhaul area. One end of the sleeve 1 is communicated with a personnel overhaul area outside the high-radiation process room 6, the other end of the sleeve 1 penetrates through the cover plate 7 and extends into the high-radiation process room 6, the shielding body 4 is made of lead materials, and the shielding body 4 is sleeved on the end portion, extending into the high-radiation process room 6, of the sleeve 1 and used for shielding other radioactive rays in the high-radiation process room 6.
Specifically, sleeve 1 is cylindrical, and its lower extreme is the cecum, and detector 3 locates sleeve 1's cecum, and the annular of 4 bottom confined rings of shield, the diameter of shield 4 is greater than sleeve 1's diameter a little to make shield 4 can overlap the tip at sleeve 1.
In this embodiment, the shield 4 is provided with a collimating hole 8, and the collimating hole 8 can face the process equipment 5 in the high radiation process room 6, so that the detection range of the detector 3 arranged in the sleeve 1 can cover the whole process equipment 5.
In this embodiment, the shielding body 4 is sleeved on the end portion of the sleeve 1 located in the high radiation process room 6, the bottom end of the shielding body is provided with a sealing cover, the sealing cover seals the lower end of the annular shielding body 4, the collimating holes 8 are formed in the side wall of the shielding body 4, and the cross section of the collimating holes is in the shape of a ring sector.
As shown in fig. 2, the opening angle of the collimating aperture 8 is set such that all radioactive rays generated by the process equipment 5 can pass through the collimating aperture 8 and all enter the measuring range of the detector 3. Specifically, the cross-sectional shape of the processing equipment 5 is a circle, and the cross-sectional circle of the processing equipment 5 is located between the probe 3 and a connecting line on two sides of the collimation hole 8.
As shown in fig. 1, the end of the sleeve 1 that extends into the high emissivity process room 6 is aligned with the end of the process equipment 5 to facilitate monitoring of the process equipment 5 by the detector 3.
As shown in fig. 2, the sleeves 1, the shields 4 and the probes 3 are provided with the same plurality of sets, the number of the process devices 5 is plural, and the number of the sleeves 1 is the same as that of the process devices 5. Specifically, the number of the process equipment 5 is two, correspondingly, the number of the sleeves 1 is also two, the sleeves 1 are distributed along the same straight line, and the two process equipment 5 are fixedly arranged below the cover plate 7 and positioned on two sides of the straight line where the two sleeves 1 are located, so that the collimating holes 8 of the shielding bodies 4 below the two sleeves 1 are arranged in different directions, and further, mutual interference is prevented.
In the embodiment, a shielding plug 2 is arranged at one end of the sleeve 1 communicated with the outside, and the shielding plug 2 can cover one end of the sleeve 1 communicated with the personnel operating area so as to prevent radioactive rays of a high-dose process room from diffusing into the personnel operating area. The shielding plug 2 is provided with a cable hole groove, and the cable hole groove is used for enabling a cable to pass through, so that the detector 3 in the connecting sleeve 1 is connected.
In the present embodiment, stainless steel is used as the material of the sleeve 1.
The instrument pipeline in this embodiment is provided with shield 4 at sleeve 1 tip, can avoid the interference of ray to detector 3 monitoring in the environment effectively to be equipped with collimation hole 8 on shield 4, can make detector 3's measuring range cover whole process equipment 5 completely, make the testing result accurate. And this instrument pipeline simple structure, easy access have good radiation protection performance simultaneously, and the security is higher.
Example 2
As shown in fig. 1, the present embodiment discloses a radiation monitoring system, which includes a detector 3 and an instrument pipeline in embodiment 1, wherein the detector 3 is disposed in a sleeve 1 of the instrument pipeline and at a position corresponding to a collimating hole 8 of a shielding body 4, and is used for measuring a radiation dose rate.
The radiation monitoring system in this embodiment carries out long-time continuous monitoring to process equipment 5 through setting up detector 3 in sleeve 1, and the pot head is equipped with shielding body 4 under sleeve 1 to ray to detector 3's interference in the reduction environment, and set up collimation hole 8 on shielding body 4's lateral wall, the ray that makes process equipment 5 send can all get into the detection range of detector 3, has greatly improved the monitoring effect of detector 3. The radiation monitoring system can effectively monitor the radiation of the process equipment 5 in the high-dose process room, and has accurate measurement result and high precision.
Example 3
The embodiment discloses a radiation monitoring method, which comprises the following steps:
a small hole is formed in the outer wall of the high-radiation process room, specifically, the small hole is formed in the top cover plate of the high-radiation process room and is arranged in the vertical direction, and the diameter of the small hole is slightly larger than that of the instrument pipeline.
As shown in fig. 1 and 2, there are two process units 5 in the high radiation process room, and the two process units are arranged in parallel. The number of the two small holes is the same as that of the process equipment 5, the positions of the two small holes correspond to the position between the two process equipment 5, and the length direction of the two process equipment 5 is perpendicular to the connecting straight line between the two small holes.
The instrument pipeline is penetrated into the high radiation process room from the small hole, the position of the instrument pipeline is adjusted, the collimation hole 8 on the instrument pipeline is aligned with the process equipment 5 in the high radiation process room,
a detector 3, located within the sleeve, monitors the radiation dose of the process equipment 5 through the collimation holes 8.
The radiation monitoring method in the embodiment can continuously monitor the process equipment 5 in the high-radiation process room for a long time, and the instrument pipeline can effectively shield the influence of other rays in the high-radiation process room on the measurement of the detector 3, so that the measurement result of the detector 3 is accurate and high in precision. The operator only needs to put the instrument pipeline into the high-radiation process room through the small hole, so that the direct contact with the radioactive substance is avoided, and the physical health of the operator is ensured. In addition, because the detector (namely the radiation measuring instrument) is arranged in the sleeve, and the sleeve can be conveniently pulled out from the small hole, regular maintenance, calibration and replacement of the detector become very convenient.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. An instrument pipeline is characterized by comprising a sleeve (1) and a shielding body (4),
one end of the sleeve (1) is communicated with the outside of the high-radiation process room (6), the other end of the sleeve (1) penetrates through the cover plate (7) and extends into the high-radiation process room (6),
the shielding body (4) is sleeved on the end part of the sleeve (1) extending into the high-radiation process room (6) and is used for shielding other radioactive rays in the high-radiation process room (6),
and the shielding body (4) is provided with a collimation hole (8), and the collimation hole (8) can face the process equipment (5) in the high-radiation process room (6), so that the detection range of the detector (3) arranged in the sleeve (1) can cover the whole process equipment (5).
2. Instrument channel according to claim 1, characterized in that the shield (4) is fitted over the end of the sleeve (1) and has a bottom end provided with a cover, and that the collimating holes (8) are provided in the side wall of the shield (4) and have a cross-sectional shape of a ring sector.
3. The instrumentation tubing of claim 2, wherein the opening angle of the collimating holes (8) is set such that all radioactive rays generated by the process equipment (5) can pass through the collimating holes (8) all the way into the measuring range of the detector (3).
4. Instrumentation tubing according to any of the claims 1 to 3, characterized in that the end of the sleeve (1) protruding into the high radiation process room (6) is aligned with the end of the process equipment (5).
5. Meter duct according to any of claims 1-3, characterized in that the sleeve (1), the shield (4) and the probe (3) are provided with identical sets,
the number of the process equipment (5) is multiple, and the number of the sleeves (1) is consistent with that of the process equipment (5).
6. The instrument pipeline according to any one of claims 1 to 3, characterized in that a shielding plug (2) is arranged at one end of the sleeve (1) communicated with the outside, and a cable hole groove is formed in the shielding plug (2).
7. The instrumentation tubing of claim 1, wherein the material of the sleeve (1) is stainless steel.
8. A radiation monitoring system, comprising a detector (3), and a meter conduit according to any of claims 1-7,
the detector (3) is arranged in the sleeve (1) of the instrument pipeline and is positioned at a position corresponding to the collimation hole (8) of the shielding body (4) and used for measuring radiation dose rate.
9. A radiation monitoring method, comprising the steps of:
a small hole is arranged on the outer wall of the high radiation process room,
passing instrumentation tubing of the radiation monitoring system of claim 8 through the aperture and into the high radiation process room and aligning the alignment hole (8) with process equipment in the high radiation process room (6),
the detector (3) of the radiation monitoring system monitors the radiation dose of the process equipment through the collimation aperture (8).
10. A method of radiation monitoring according to claim 9 wherein the location of the aperture corresponds to a location between two process tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210879873.9A CN115113262A (en) | 2022-07-25 | 2022-07-25 | Instrument pipeline, radiation monitoring system and radiation monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210879873.9A CN115113262A (en) | 2022-07-25 | 2022-07-25 | Instrument pipeline, radiation monitoring system and radiation monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115113262A true CN115113262A (en) | 2022-09-27 |
Family
ID=83333637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210879873.9A Pending CN115113262A (en) | 2022-07-25 | 2022-07-25 | Instrument pipeline, radiation monitoring system and radiation monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115113262A (en) |
-
2022
- 2022-07-25 CN CN202210879873.9A patent/CN115113262A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5297421A (en) | Leak detection system for gas, steam or the like that involves multi-point sampling | |
| US20140042309A1 (en) | In-situ calibration system and method for radiation monitors | |
| CN107356953B (en) | Radioactive substance image supervisory control device | |
| JPH0365696A (en) | In-fixed type reactor calibrating apparatus for thermal neutron detector of boiling water reactor | |
| US6456681B1 (en) | Neutron flux measuring apparatus | |
| CN115113262A (en) | Instrument pipeline, radiation monitoring system and radiation monitoring method | |
| EP1842205B1 (en) | Neutron detector assembly with variable length rhodium emitters | |
| CN207457102U (en) | Detector arm support and the radiation image-forming detecting system for including it | |
| JP5245173B2 (en) | Radioactive gas measuring device and damaged fuel inspection device | |
| KR920008454B1 (en) | Reactor monitoring assembly | |
| CN217788031U (en) | Nuclear detection device | |
| CN212434264U (en) | Nuclear instrument system | |
| CN113628772A (en) | Nuclear instrument system | |
| CN111175808B (en) | Assembly and testing method based on assembly | |
| JP6014028B2 (en) | A glove box, a mechanical device for mounting a detection probe, a monitoring device for nuclear material in the glove box and its use | |
| CN214476438U (en) | Device for measuring out-of-reactor neutron fluence of nuclear power unit reactor pressure vessel | |
| CN211319737U (en) | Heavy water reactor nuclear power station steam generator transverse support state monitoring system | |
| CN109521217A (en) | Pitot tube and anemobiagraph probe fixing device | |
| CN213275976U (en) | Device for rapidly detecting protection equivalent of radiation protection material | |
| Bielewicz et al. | The prototype dosimetry system to protect MPD electronic equipment at the new NICA collider | |
| CN207636148U (en) | A kind of material-level detection system for urea synthesizer | |
| CN218349354U (en) | Thick type fire-proof coating detector | |
| CN220381300U (en) | Radiation-resistant sodium iodide measurement detector | |
| CN112652412B (en) | Nuclear power station neutron and temperature monitoring device | |
| KR101241285B1 (en) | Fixed in-core instrument having radiation shield and neutron detecting method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |