CN216927096U

CN216927096U - Nuclear material plate surface pollution detection device

Info

Publication number: CN216927096U
Application number: CN202220263377.6U
Authority: CN
Inventors: 肖艾练; 金凡尧; 李晨浩; 程春林
Original assignee: Sichuan Tongren Precision Technology Co ltd
Current assignee: Sichuan Tongren Precision Technology Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-07-08
Anticipated expiration: 2032-02-09

Abstract

The utility model discloses a nuclear material plate surface pollution detection device which comprises a feeding roller way conveying device (1), a detection assembly (2) and a discharging roller way conveying device (3) which are sequentially arranged from left to right, wherein the detection assembly (2) comprises a detection machine base (4) and a double-layer roller way conveying device, a through groove (6) is formed in the top of the detection machine base (4), a machine frame (7) of the double-layer roller way conveying device is fixedly arranged on the top surface of the detection machine base (4), each roller group of the double-layer roller way conveying device is arranged right above the through groove (6) and is arranged along the length direction of the through groove (6), each roller group comprises an upper roller (8) and a lower roller (9) which are rotatably arranged in the machine frame (7), and the upper roller (8) is arranged right above the lower roller (9). The utility model has the beneficial effects that: the detection precision and the detection efficiency are improved, and the operation is simple.

Description

Nuclear material plate surface pollution detection device

Technical Field

The utility model relates to the technical field of nuclear fuel plate surface pollution condition detection, in particular to a nuclear fuel plate surface pollution detection device.

Background

Radioactive contaminants are often attached to the surfaces of nuclear fuel plates during their production. In order to detect the contamination of the nuclear fuel plate, a detector is usually used to detect the amount of alpha particles emitted by the radioactive contaminants covering the nuclear fuel plate to evaluate the contamination of the nuclear fuel plate. The existing detection mode is that an operator wears protective clothing, the top surface of a nuclear fuel plate is placed under a probe of a detector, the detector collects the number of alpha particles, data is converted into an electric signal, and the electric signal is transmitted to an upper computer to evaluate the pollution condition of the upper surface of the nuclear fuel plate; and then, the operator turns the nuclear fuel plate by 180 degrees to place the bottom surface of the nuclear fuel plate under a probe of a detector, the detector collects the number of alpha particles, and data is converted into an electric signal and transmitted to an upper computer to evaluate the pollution condition of the lower surface of the nuclear fuel plate. Although this detection method can detect the contamination of the nuclear fuel plate, the following drawbacks still exist: 1. the upper and lower surfaces of the nuclear fuel plate need to be detected by an operator in sequence, so that the detection time of a single nuclear fuel plate is prolonged, and the detection efficiency of the pollution condition of the nuclear fuel plate is reduced. 2. The contamination condition of the nuclear fuel plate cannot be continuously detected, further reducing the detection efficiency. 3. During detection, the nuclear fuel plate is exposed in the air, alpha particles in the universe environment can be detected by the detector, and therefore the quantity of the alpha particles collected by the detector is not accurate, and detection accuracy is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the nuclear material plate surface pollution detection device which is simple to operate and capable of improving detection precision and detection efficiency.

The purpose of the utility model is realized by the following technical scheme: a nuclear material plate surface pollution detection device comprises a feeding roller way conveying device, a detection assembly and a discharging roller way conveying device which are sequentially arranged from left to right, wherein the detection assembly comprises a detection machine base and a double-layer roller way conveying device, a through groove is formed in the top of the detection machine base, a rack of the double-layer roller way conveying device is fixedly arranged on the top surface of the detection machine base, each roller group of the double-layer roller way conveying device is arranged right above the through groove and is arranged along the length direction of the through groove, each roller group comprises an upper roller and a lower roller which are rotatably arranged in the rack, the upper roller is arranged right above the lower roller, and a gap for conveying a fuel plate is reserved between the upper roller and the lower roller; an upper protective cover is arranged right above the rack, an upper detector is arranged in the upper protective cover and comprises a detector body, each probe on the detector body is arranged downwards, each probe is arranged between two adjacent roller groups respectively, the probes are arranged above the gap, a lower protective cover positioned in the through groove is arranged below the rack, and a lower detector is arranged in the lower protective cover; the outer wall of the detection machine base is fixedly provided with a main support, the main support is fixedly provided with an auxiliary support I and an auxiliary support II, the auxiliary support I penetrates through the upper protective cover and is fixedly arranged on the detector body of the upper detector, and the auxiliary support II penetrates through the outer wall of the detection machine base, the lower protective cover and is fixedly arranged on the detector body of the lower detector in sequence.

A long and thin seam is arranged between the upper protective cover and the lower protective cover, and the long and thin seam and the seam are located on the same horizontal plane.

The lower detector and the upper detector are arranged in a vertically symmetrical mode.

The upper protective cover is fixedly arranged on the auxiliary support I.

The lower protective cover is fixedly arranged on the auxiliary support II.

The welding has the platform on the outer wall of detection frame, has set firmly a plurality of main supports on the platform, all has set firmly assistant support I and assistant support II on every main support.

The top surface of the roller of the feeding roller way conveying device is flush with the top surface of the roller of the discharging roller way conveying device, and the top surface of the roller and the gap are on the same horizontal plane.

The device also comprises an upper computer, wherein the output interface of the upper detector and the output interface of the lower detector are electrically connected with the input interface of the upper computer.

The utility model has the following advantages: the utility model has compact structure, improved detection precision and detection efficiency, and simple operation.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of a probe assembly;

FIG. 3 is a schematic view of the structure of FIG. 2 with the inspection station removed;

FIG. 4 is a schematic view of the structure of FIG. 3 with the upper and lower shields removed;

FIG. 5 is a schematic structural view of a double-layer roller way conveying device;

FIG. 6 is a schematic structural view of an upper detector;

FIG. 7 is a schematic structural diagram of a testing machine base;

FIG. 8 is a schematic structural view of a feeding roller way conveying device;

in the figure, 1-a feeding roller way conveying device, 2-a detection assembly, 3-a discharging roller way conveying device, 4-a detection machine base, 6-a through groove, 7-a machine frame, 8-an upper roller, 9-a lower roller, 10-an upper protective cover, 11-a detector body, 12-a probe, 13-a lower protective cover, 14-a main bracket, 15-an auxiliary bracket I, 16-an auxiliary bracket II, 17-a long and thin seam, 18-a platform and 19-a roller.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, without limiting the scope of the utility model to the following:

as shown in fig. 1 to 8, a nuclear material plate surface pollution detection device includes a feeding roller conveyor 1, a detection assembly 2 and a discharging roller conveyor 3, which are sequentially arranged from left to right, wherein the detection assembly 2 includes a detection machine base 4 and a double-layer roller conveyor, a through groove 6 is formed in the top of the detection machine base 4, a frame 7 of the double-layer roller conveyor is fixedly arranged on the top surface of the detection machine base 4, each roller group of the double-layer roller conveyor is arranged right above the through groove 6 and arranged along the length direction of the through groove 6, each roller group includes an upper roller 8 and a lower roller 9, which are rotatably arranged in the frame 7, the upper roller 8 is arranged right above the lower roller 9, and a gap for conveying fuel plates is reserved between the upper roller 8 and the lower roller 9.

An upper protective cover 10 is arranged right above the rack 7, an upper detector is arranged in the upper protective cover 10 and comprises a detector body 11, each probe 12 on the detector body 11 is arranged downwards, each probe 12 is respectively arranged between two adjacent roller groups, the probes 12 are arranged above the gap, a lower protective cover 13 positioned in the through groove 6 is arranged below the rack 7, and a lower detector is arranged in the lower protective cover 13; the outer wall of the detection machine base 4 is fixedly provided with a main support 14, the main support 14 is fixedly provided with an auxiliary support I15 and an auxiliary support II16, the auxiliary support I15 penetrates through the upper protective cover 10 and is fixedly arranged on the detector body 11 of the upper detector, and the auxiliary support II16 sequentially penetrates through the outer wall of the detection machine base 4, the lower protective cover 13 and is fixedly arranged on the detector body 11 of the lower detector. The lower detector and the upper detector are arranged in a vertically symmetrical mode.

An elongated slit 17 is arranged between the upper protective cover 10 and the lower protective cover 13, and the elongated slit 17 and the slit are positioned on the same horizontal plane. The upper protective cover 10 is fixedly arranged on the auxiliary support I15. The lower protective cover 13 is fixedly arranged on the auxiliary support II 16.

The outer wall of the detection machine base 4 is welded with a platform 18, the platform 18 is fixedly provided with a plurality of main supports 14, and each main support 14 is fixedly provided with an auxiliary support I15 and an auxiliary support II 16. The top surface of the roller 19 of the feeding roller way conveying device 1 is flush with the top surface of the roller 19 of the discharging roller way conveying device 3, and the top surface of the roller 19 and the gap are on the same horizontal plane. The device also comprises an upper computer, wherein the output interface of the upper detector and the output interface of the lower detector are electrically connected with the input interface of the upper computer.

The working process of the utility model is as follows:

s1, a worker opens the feeding roller way conveying device 1, the double-layer roller way conveying device and the discharging roller way conveying device 3, each roller 19 on the feeding roller way conveying device 1 rotates clockwise, the lower roller 9 on the double-layer roller way conveying device rotates clockwise, the upper roller 8 rotates anticlockwise, and each roller 19 of the discharging roller way conveying device 3 rotates clockwise;

s2, an operator horizontally places the nuclear fuel plate to be detected on the rollers 19 of the feeding roller way conveying device 1, the nuclear fuel plate to be detected passes through the slender seam 17 formed by the upper protective cover 10 and the lower protective cover 13 to enter the gaps of the roller groups, the upper rollers 8 and the lower rollers 9 in each roller group convey the nuclear fuel plate to be detected to the right, in the process of conveying, each probe 12 of the upper detector collects alpha particles released by pollutants attached to the top surface of the nuclear fuel plate, the upper detector converts the quantity of the collected alpha particles into an electric signal and transmits the electric signal to an upper computer, meanwhile, each probe 12 of the lower detector collects alpha particles released by pollutants attached to the bottom surface of the nuclear fuel plate, the lower detector converts the quantity of the collected alpha particles into electric signals and transmits the electric signals to an upper computer, and an operator can judge the pollution condition of the nuclear fuel plate according to the numerical value of the alpha particles; therefore, the detection device realizes the simultaneous detection of the upper surface and the lower surface of the nuclear fuel plate, and greatly improves the detection efficiency of the pollution condition of the nuclear fuel plate compared with the traditional detection mode;

s3, the nuclear fuel plate detected in the step S2 passes through the long and thin slit and falls onto the roller 19 of the discharging roller way conveying device 3, and the roller 19 conveys the nuclear fuel plate out;

s4, the nuclear fuel plate to be detected can be continuously detected by repeating the steps S2-S3, and compared with the traditional single detection, the detection device realizes continuous detection, so that the detection efficiency of the nuclear fuel plate is greatly improved.

The upper protective cover 10 and the lower protective cover 13 protect each probe 12, alpha particles in the universe environment are effectively prevented from entering a detection station of the probe 12, and the detection precision of the pollution condition of the nuclear fuel plate is greatly improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a nuclear material board surface pollution detection device which characterized in that: the device comprises a feeding roller way conveying device (1), a detection assembly (2) and a discharging roller way conveying device (3) which are sequentially arranged from left to right, wherein the detection assembly (2) comprises a detection machine base (4) and a double-layer roller way conveying device, a through groove (6) is formed in the top of the detection machine base (4), a rack (7) of the double-layer roller way conveying device is fixedly arranged on the top surface of the detection machine base (4), each roller group of the double-layer roller way conveying device is arranged right above the through groove (6), each roller group is arranged along the length direction of the through groove (6), each roller group comprises an upper roller (8) and a lower roller (9) which are rotatably arranged in the rack (7), the upper roller (8) is arranged right above the lower roller (9), and a gap for conveying fuel plates is reserved between the upper roller (8) and the lower roller (9); an upper protective cover (10) is arranged right above the rack (7), an upper detector is arranged in the upper protective cover (10), the upper detector comprises a detector body (11), each probe (12) on the detector body (11) is arranged downwards, each probe (12) is arranged between two adjacent roller sets respectively, the probes (12) are arranged above the gap, a lower protective cover (13) positioned in the through groove (6) is arranged below the rack (7), and a lower detector is arranged in the lower protective cover (13); the outer wall of the detection machine base (4) is fixedly provided with a main support (14), the main support (14) is fixedly provided with an auxiliary support I (15) and an auxiliary support II (16), the auxiliary support I (15) penetrates through the upper protection cover (10) and is fixedly arranged on the detector body (11) of the upper detector, and the auxiliary support II (16) sequentially penetrates through the outer wall of the detection machine base (4), the lower protection cover (13) and is fixedly arranged on the detector body (11) of the lower detector.

2. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: a long and thin seam (17) is arranged between the upper protective cover (10) and the lower protective cover (13), and the long and thin seam (17) and the seam are positioned on the same horizontal plane.

3. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the lower detector and the upper detector are arranged in an up-and-down symmetrical mode.

4. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the upper protective cover (10) is fixedly arranged on the auxiliary support I (15).

5. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the lower protective cover (13) is fixedly arranged on the auxiliary support II (16).

6. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the outer wall of the detection machine base (4) is welded with a platform (18), the platform (18) is fixedly provided with a plurality of main supports (14), and each main support (14) is fixedly provided with an auxiliary support I (15) and an auxiliary support II (16).

7. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the top surface of the roller (19) of the feeding roller way conveying device (1) is flush with the top surface of the roller (19) of the discharging roller way conveying device (3), and the top surface of the roller (19) and the gap are on the same horizontal plane.

8. The apparatus for detecting surface contamination of nuclear material plate according to claim 1, wherein: the device also comprises an upper computer, wherein the output interface of the upper detector and the output interface of the lower detector are electrically connected with the input interface of the upper computer.