CN219201939U

CN219201939U - Explosion-proof partition board of radioactivity detector

Info

Publication number: CN219201939U
Application number: CN202223445461.9U
Authority: CN
Inventors: 徐一鹤; 周捷; 许培培
Original assignee: Zhongjian Shibiao Nantong Metrology Testing Co ltd
Current assignee: Zhongjian Shibiao Nantong Metrology Testing Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-06-16
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses an explosion-proof partition board of a radioactive detector, which comprises a pipeline and an opening formed in the pipeline, wherein a carrier barrel is arranged in the opening, a scintillator is arranged below the carrier barrel, an upper pipeline partition board is arranged at the upper end of the inside of the carrier barrel, a lower pipeline partition board is arranged below the upper pipeline partition board, and the upper pipeline partition board and the lower pipeline partition board are made of the same materials as the pipeline. The utility model is provided with the upper pipeline partition board and the pipeline partition board, the double-layer board has good isolation effect, an explosion environment 2 area can be formed outside the pipeline, the damage caused by explosion is reduced, the upper pipeline partition board and the lower pipeline partition board are made of the same materials as the pipeline, and the opening of the pipeline is pressed as much as possible with all parts of the pipeline, so that even if the pipeline explodes, the explosive force at the opening is not strongest, the damage around a carrier barrel is reduced, a condensing lens is arranged between a photomultiplier and a scintillator, the light received by the photomultiplier can be clearer, and the detection performance is enhanced.

Description

Explosion-proof partition board of radioactivity detector

Technical Field

The utility model relates to the technical field of radioactivity detection, in particular to an explosion-proof partition board of a radioactivity detector.

Background

The waste gas discharged by power plants, coal-fired power plants, chemical plants, steel plants and the like contains radioactive substances, and online continuous radioactivity detection is required before the waste gas and the waste liquid are discharged according to the environmental radiation protection regulations issued by the national environmental protection department; in order to improve the detection sensitivity of the detector, the detector is generally required to be placed in a pipeline or a container, but some of the pipelines or the containers contain flammable and explosive gases such as hydrogen, so the detector must be explosion-proof;

for this purpose, patent No. cn20172023683. X proposes an explosion-proof structure of a final radioactivity detector, wherein a detector housing is an explosion-proof housing, a scintillator assembly is mounted on a pipeline or a container wall as a partition plate, and explosive gas in the pipeline or the container is isolated from the outside, so that the outside of the pipeline or the outside of the container becomes a lower dangerous place of an explosive environment; the detector shell meeting the explosion-proof requirement is arranged in a lower dangerous place, so that the explosion-proof requirement can be met;

but the isolation effect of the single-layer partition plate is poor, and once explosion occurs, the pressure of the installation position of the explosion-proof shell and the pressure of the integral pipeline are unbalanced, so that the explosion damage of the installation position of the explosion-proof shell is large.

Disclosure of Invention

The utility model aims to provide an explosion-proof partition board of a radioactive detector, which solves the problems that in the prior art, the isolation effect of a single-layer partition board is poor, and in case of explosion, the explosion damage of the explosion-proof housing mounting part is large due to unbalanced pressure between the explosion-proof housing mounting part and the integral pipeline.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an explosion-proof baffle of radioactivity detector, includes the pipeline and sets up the opening on the pipeline, open-ended internally mounted has a carrier section of thick bamboo, the scintillator is installed to the below of carrier section of thick bamboo, the inside upper end of carrier section of thick bamboo is installed and is gone up the pipeline baffle, the below of going up the pipeline baffle is equipped with down the pipeline baffle, go up pipeline baffle and down the pipeline baffle and all make with the pipeline with the material.

Preferably, an integrated sealing ring is arranged outside the circumference of the upper end of the carrier barrel, and the sealing ring is attached to the outer surface of the carrier barrel.

Preferably, the carrier cylinder is in threaded connection with the opening, and an extension ring is arranged below the opening and is in threaded connection with the carrier cylinder.

Preferably, a condensing lens is fixedly connected to the position, located on the upper surface of the scintillator, of the inner part of the carrier barrel, and a photomultiplier tube is arranged above the condensing lens.

Preferably, a processor is arranged outside the pipeline, and the processor is electrically connected with the photomultiplier.

Compared with the prior art, the utility model has the beneficial effects that:

1. the upper pipeline partition plate and the pipeline partition plate are arranged, the isolation effect of the double-layer plate is good, an explosion environment 2 area can be formed outside the pipeline, damage caused by explosion is reduced, the upper pipeline partition plate and the lower pipeline partition plate are made of the same materials as the pipeline, and further the opening of the pipeline is pressed the same as each part of the pipeline as much as possible, so that even if the pipeline explodes, the explosive force at the opening is not strongest, and damage around the carrier cylinder is reduced;

2. according to the utility model, the condensing lens is arranged between the photomultiplier and the scintillator, so that the light received by the photomultiplier can be clearer, and the detection performance is enhanced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is an overall installation view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the carrier cartridge of the present utility model;

fig. 3 is a schematic view illustrating the installation of the condensing lens of the present utility model.

In the figure: 1. a pipe; 101. an extension ring; 2. a processor; 3. an upper pipeline partition plate; 4. a lower pipe separator; 5. a seal ring; 6. a condensing lens; 7. a scintillator; 8. a carrier cylinder; 9. a photomultiplier tube.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, in an embodiment of the present utility model, an explosion-proof partition board for a radioactive detector includes a pipe 1 and an opening formed on the pipe 1, a carrier cylinder 8 is installed in the opening, the carrier cylinder 8 is used for installing a detection component, a scintillator 7 is installed below the carrier cylinder 8, and the scintillator 7 is the detection component;

as shown in fig. 1 and 2, an upper pipeline partition plate 3 is installed at the upper end of the interior of a carrier cylinder 8, a lower pipeline partition plate 4 is arranged below the upper pipeline partition plate 3, the isolation effect of a double-layer plate is good, an explosion environment 2 area can be formed outside a pipeline, the upper pipeline partition plate 3 and the lower pipeline partition plate 4 are made of the same materials as the pipeline 1, and the opening of the pipeline 1 and each part of the pipeline are pressed as much as possible, so that even if the pipeline explodes, the explosive force at the opening is not strongest, and the damage around the carrier cylinder 8 is reduced;

referring to fig. 1 and 2, an integral sealing ring 5 is arranged outside the circumference of the upper end of a carrier barrel 8, and the sealing ring 5 is attached to the outer surface of the carrier barrel 8, so that the carrier barrel 8 and an opening of a pipeline 1 can be sealed, gas leakage is avoided, preferably, the carrier barrel 8 and the opening are connected through threads, and in order to enable the connection of the carrier barrel 8 to be more stable and sealed, an extension ring 101 is arranged below the opening, the extension ring 101 is connected with the carrier barrel 8 through threads, and the extension ring 10 can increase the contact area between the carrier barrel 8 and the pipeline 1, so that the stability and the tightness of the carrier barrel 8 are realized;

as shown in fig. 1, 2 and 3, a condensing lens 6 is fixedly connected to the position, located on the upper surface of a scintillator 7, of the inner part of a carrier barrel 8, a photomultiplier tube 9 is arranged above the condensing lens 6, a processor 2 is arranged outside the pipeline 1, the processor 2 is electrically connected with the photomultiplier tube 9, and when the scintillator 7 is coupled to the photomultiplier tube 9, a scintillation detector or a scintillation counter is obtained. The photomultiplier tube 9 absorbs the light emitted by the scintillator and re-emits subsequent multiplication of these electrons in the form of electrons by the photoelectric effect, which can then be analyzed by the processor 2 and generate meaningful information about the particles that initially hit the scintillator, where the condenser lens 6 can make the light received by the photomultiplier tube 9 clearer, enhancing the detection performance.

The working principle and the using flow of the utility model are as follows: when the present device is used, a scintillation detector or scintillation counter is obtained when the scintillator 7 is coupled to the photomultiplier tube 9. The photomultiplier tube 9 absorbs the light emitted by the scintillator and re-emits, by the photoelectric effect, the subsequent multiplication of these electrons in the form of electrons, which can then be analyzed by the processor 2 and generate meaningful information about the particles that initially hit the scintillator, where the condenser lens 6 allows the light received by the photomultiplier tube 9 to be clearer, enhancing the detection performance;

the lower pipeline partition board 4 is arranged below the upper pipeline partition board 3, the double-layer board has good isolation effect, an explosion environment 2 area can be formed outside the pipeline, the upper pipeline partition board 3 and the lower pipeline partition board 4 are made of the same material as the pipeline 1, and the opening of the pipeline 1 is pressed the same as each part of the pipeline as much as possible, so that even if the pipeline explodes, the explosive force at the opening cannot be strongest, and the damage on the periphery of the carrier barrel 8 is reduced.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an explosion-proof baffle of radioactivity detector, includes pipeline (1) and sets up the opening on pipeline (1), its characterized in that: the inside of open-ended is installed carrier section of thick bamboo (8), scintillator (7) are installed to the below of carrier section of thick bamboo (8), go up pipeline baffle (3) are installed to the inside upper end of carrier section of thick bamboo (8), the below of going up pipeline baffle (3) is equipped with down pipeline baffle (4), go up pipeline baffle (3) and down pipeline baffle (4) all make with pipeline (1) samely.

2. A radiation detector explosion proof baffle as set forth in claim 1, wherein: the outer part of the circumference of the upper end of the carrier barrel (8) is provided with an integrated sealing ring (5), and the sealing ring (5) is attached to the outer surface of the carrier barrel (8).

3. A radiation detector explosion proof baffle as set forth in claim 1, wherein: the carrier cylinder (8) is connected with the opening through threads, an extension ring (101) is arranged below the opening, and the extension ring (101) is connected with the carrier cylinder (8) through threads.

4. A radiation detector explosion proof baffle as set forth in claim 1, wherein: the inside of the carrier cylinder (8) is fixedly connected with a condensing lens (6) at the position of the upper surface of the scintillator (7), and a photomultiplier tube (9) is arranged above the condensing lens (6).

5. A radiation detector explosion proof baffle as set forth in claim 1, wherein: the outside of pipeline (1) is equipped with treater (2), be connected between treater (2) and photomultiplier (9) electricity.