CN220271568U

CN220271568U - Submerged radiation source detector

Info

Publication number: CN220271568U
Application number: CN202321713647.XU
Authority: CN
Inventors: 乔婕; 傅泽鹏; 黄庆武
Original assignee: Wuhan Zhongniu Control Technology Co ltd
Current assignee: Wuhan Zhongniu Control Technology Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-29
Anticipated expiration: 2033-06-30

Abstract

The utility model provides a submerged radiation source detector, comprising: the machine core is used for detecting rays of the radioactive source and transmitting the rays to the transmitter; the connecting pipe is connected with the machine core, and a wire inside the connecting pipe is electrically connected with the machine core; the waterproof shell, connecting pipe and core are accommodated in the waterproof shell, the cable joint is installed on the outside of the core, one end of the connecting pipe is connected with the cable joint, and the wire inside the connecting pipe is electrically connected with the cable joint; through with the complete acceping in the waterproof shell inside of core, when submerged radioactive source detector sunk into the aquatic operation, the waterproof shell has good leakproofness, still can make the core at the inside normal operating of waterproof shell, detects the ray that the radioactive source radiated.

Description

Submerged radiation source detector

Technical Field

The utility model relates to the technical field of radioactive source detection, in particular to a submerged radioactive source detector.

Background

In general, nuclear instrument measurement is that a detector receives rays of a radioactive source, signals are collected and transmitted to a transmitter through a sodium iodide crystal, a photomultiplier and an integrated circuit of a detector core, and finally the transmitter obtains the density of an object to be measured through calculation. The existing detector cannot ensure that water does not enter after sinking into water due to insufficient tightness, and can normally operate, so that detection is unstable.

In view of the foregoing, it is desirable to provide a new type of immersion radiation source detector that overcomes the above-described drawbacks.

Disclosure of Invention

The utility model aims to provide a submerged radiation source tank which has good sealing performance and can still normally operate to detect rays emitted by a radiation source when a submerged radiation source detector is submerged in water for operation.

In order to achieve the above object, the present utility model provides a submersible radiation source detector comprising:

the machine core is used for detecting rays of the radioactive source and transmitting the rays to the transmitter;

the connecting pipe is connected with the machine core, and a wire inside the connecting pipe is electrically connected with the machine core;

waterproof shell, connecting pipe and core accept in waterproof shell is interior, cable joint is installed in the outside of core, connecting pipe one end is connected with cable joint, just the inside wire of connecting pipe and cable joint electric connection.

Preferably, the movement comprises a circuit board, a photomultiplier and a sodium iodide crystal detector, wherein the circuit board, the photomultiplier and the sodium iodide crystal detector are electrically connected with each other, and the circuit board is electrically connected with a wire inside the connecting pipe.

Preferably, the movement further comprises a connector mounted between the circuit board and the photomultiplier, the photomultiplier being assembled with the sodium iodide crystal detector.

Preferably, the movement comprises a protective shell, and the circuit board, the photomultiplier, the sodium iodide crystal detector and the connecting piece are all accommodated in the protective shell.

Preferably, the waterproof case includes waterproof pipe that the bottom is sealed and seal in waterproof pipe top sealing member, core and connecting pipe accept in waterproof pipe of waterproof case, sealing member seals on waterproof pipe's top, cable joint install in on sealing member's the top surface.

Preferably, the cross section of the waterproof pipe is circular, the cross section of the sealing element is circular, the cross section of the protective shell is circular, and the cross section of the connecting pipe is circular; the central axes of the waterproof pipe, the sealing piece, the protective shell and the connecting pipe are coincident.

Compared with the prior art, the waterproof shell has the beneficial effects that the movement is completely contained in the waterproof shell, so that the waterproof shell has good sealing performance when the submerged radiation source detector is submerged in water for running, and the movement can still normally run in the waterproof shell to detect rays emitted by the radiation source.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The features and advantages of the utility model may be realized and obtained by means of the elements and combinations particularly pointed out in the appended claims. These and other features of the present utility model will become more fully apparent from the following description and appended claims, or may be learned by the practice of the embodiments of the utility model as set forth hereinafter.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a submersible radiation source detector provided by the utility model.

Fig. 2 is a cross-sectional view of the movement of the submersible radiation source detector shown in fig. 1.

Reference numerals: 1. a movement; 11. a circuit board; 12. a photomultiplier tube; 13. a sodium iodide crystal detector; 14. a connecting piece; 15. a protective shell; 2. a connecting pipe; 3. a waterproof case; 31. a waterproof pipe; 32. a seal; 4. a cable joint.

Detailed Description

In order to make the objects, technical solutions and advantageous technical effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. It will be apparent to those skilled in the art that the terms described above have the particular meaning in the present utility model, as the case may be.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. Furthermore, the meaning of "a plurality of", "a number" means two or more, unless specifically defined otherwise.

Referring to fig. 1 to 2, the present utility model provides a submerged radiation source detector, comprising:

the machine core 1 is used for detecting rays of the radioactive source and transmitting the rays to the transmitter;

the connecting pipe 2 is connected with the movement 1, and a wire inside the connecting pipe 2 is electrically connected with the movement 1;

waterproof shell 3, connecting pipe 2 and core 1 accept in waterproof shell 3 is interior, cable joint 4 is installed in the outside of core 1, connecting pipe 2 one end is connected with cable joint 4, just the inside wire of connecting pipe 2 and cable joint 2 electric connection. The joints of the cable joint 4, the waterproof case 3 and the connecting pipe 2 are sealed, and external water cannot enter the waterproof case 3 from the joints of the cable joint 4, the waterproof case 3 and the connecting pipe 2.

Therefore, the movement 1 is completely contained in the waterproof shell 3, so that the waterproof shell has good sealing performance, and the waterproof shell can still normally operate when the submerged radiation source detector is submerged.

In a preferred embodiment, the movement 1 includes a circuit board 11, a photomultiplier 12 and a sodium iodide crystal detector 13, the circuit board 11, the photomultiplier 12 and the sodium iodide crystal detector 13 are electrically connected in sequence, and the circuit board 11 is electrically connected with a wire inside the connection tube 2. The sodium iodide crystal detector 13 is the same as the detector for detecting rays, the photomultiplier 12 converts the detected ray signals into electric signals, and the electric signals are transmitted to a transmitter connected with the cable joint 4 through the circuit board 11. Thus, radiation detection, transmission, etc. are completed.

In a preferred embodiment, the movement 1 further comprises a connector 14, wherein the connector 14 is installed between the circuit board 11 and the photomultiplier 12 to increase the connection stability between the circuit board 11 and the photomultiplier 12, and the photomultiplier 12 and the sodium iodide crystal detector 13 are assembled together to make the installation firm.

In a preferred embodiment, the movement 1 includes a protective housing 15, and the circuit board 11, the photomultiplier tube 12, the sodium iodide crystal detector 13, and the connector 14 are all accommodated in the protective housing 15, so that the protective housing 15 can protect the internal components (such as the circuit board 11, the photomultiplier tube 12, and the sodium iodide crystal detector 13) from impact and aging.

In a preferred embodiment, the waterproof case 3 includes a waterproof tube 31 having a bottom sealed and a sealing member 32 (e.g., a flange) sealed to a top end of the waterproof tube 31, the movement 1 and the connection tube 2 are accommodated in the waterproof tube 31 of the waterproof case 3, the sealing member 32 is sealed to the top end of the waterproof tube 31, and the cable connector 4 is mounted to a top surface of the sealing member 32. In the present embodiment, the waterproof tube 31 is made of stainless steel. In this way, the movement 1 is completely contained inside the waterproof tube 31 of the waterproof case 3, and is conveniently connected with an external transmitter through the cable connector 4 on the sealing element 32, so that the use is very convenient.

In a preferred embodiment, the waterproof tube 31 has a circular cross section, the sealing member 32 has a circular cross section, the protective housing 15 has a circular cross section, and the connecting tube 2 has a circular cross section; the center axes of the waterproof tube 31, the sealing member 32, the protective case 15 and the connection tube 2 are overlapped. Therefore, the installation is uniform, and the installation mode is simple.

When the waterproof device is used, the movement 1 is completely contained in the waterproof shell 3, and when the submerged radiation source detector is submerged in water to operate, the waterproof shell 3 has good sealing performance, and the movement 1 can still normally operate in the waterproof shell 3 to detect rays emitted by the radiation source.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. A submersible radiation source detector, comprising:

the machine core (1) is used for detecting rays of the radioactive source and transmitting the rays to the transmitter;

the connecting pipe (2), the connecting pipe (2) is connected with the movement (1), and the lead inside the connecting pipe (2) is electrically connected with the movement (1);

waterproof shell (3), connecting pipe (2) and core (1) accept in waterproof shell (3), cable joint (4) are installed in the outside of core (1), connecting pipe (2) one end is connected with cable joint (4), just inside wire of connecting pipe (2) and cable joint (2) electric connection.

2. The submersible radiation source detector according to claim 1, wherein the movement (1) comprises a circuit board (11), a photomultiplier tube (12) and a sodium iodide crystal detector (13), the circuit board (11), the photomultiplier tube (12) and the sodium iodide crystal detector (13) are electrically connected with each other, and the circuit board (11) is electrically connected with a wire inside the connecting tube (2).

3. A submersible radiation source detector according to claim 2, characterized in that the movement (1) further comprises a connector (14), the connector (14) being mounted between the circuit board (11) and a photomultiplier tube (12), the photomultiplier tube (12) being assembled with a sodium iodide crystal detector (13).

4. The submersible radiation source detector according to claim 1, characterized in that the movement (1) comprises a protective housing (15), and the circuit board (11), the photomultiplier (12), the sodium iodide crystal detector (13) and the connector (14) are all accommodated in the protective housing (15).

5. A submersible radiation source detector as claimed in claim 4, characterized in that the waterproof housing (3) comprises a waterproof tube (31) with a sealed bottom end and a sealing member (32) sealed at the top end of the waterproof tube (31), the movement (1) and the connecting tube (2) are accommodated in the waterproof tube (31) of the waterproof housing (3), the sealing member (32) is sealed on the top end of the waterproof tube (31), and the cable connector (4) is mounted on the top surface of the sealing member (32).

6. The submersible radiation source detector according to claim 5, characterized in that the waterproof tube (31) has a circular cross section, the sealing member (32) has a circular cross section, the protective housing (15) has a circular cross section, and the connecting tube (2) has a circular cross section; the central axes of the waterproof pipe (31), the sealing piece (32), the protective shell (15) and the connecting pipe (2) are overlapped.