CN214795224U - Portable radioactive aerosol alpha beta energy spectrum monitor - Google Patents

Abstract

The utility model discloses a portable radioactive aerosol alpha beta energy spectrum monitor, including last box, lower box, admit air subassembly, determine module, first running roller, second running roller, filter paper, data processing system, display, air pump and power supply module. The utility model optimizes the position of the internal components of the monitor, the whole line of the shell is smooth, the size proportion is coordinated, the structure is light, the man-machine engineering design is good, the carrying is very convenient, the flexibility is high, and the rapid sampling measurement can be realized for the volume activity of the artificial radioactive nuclide and the radioactive aerosol in the site environment in radioactive smoke cloud and dust; meanwhile, the electromagnetic shielding and vibration resisting device has good electromagnetic shielding capability, protection capability, vibration resisting capability and good operability and maintainability.

Description

Portable radioactive aerosol alpha beta energy spectrum monitor

Technical Field

The utility model relates to a radioactive aerosol monitoring technology field, concretely relates to portable radioactive aerosol alpha beta energy spectrum monitor.

Background

The radioactive aerosol can enter the human body through breathing, skin and other ways, wherein part of radioactive substances can be retained in the body to form internal irradiation, so that the body cells are damaged, and the occurrence of radioactive diseases is caused. Radioactive aerosols are one of the most important sources of pollution hazards in the air of nuclear facility workplaces and nuclear radiation terrorist events. Therefore, protection and monitoring of radioactive aerosols are highly appreciated. Monitoring radioactive aerosols is a need for assessing the contamination of nuclear enterprise workplaces, as well as for emergency assessment of radiological accidents and assessment of environmental impact.

In recent years there has been an increasing interest in health problems caused by environmental factors, in particular by radiation. Therefore, the radioactive aerosol in the field environment can be rapidly sampled and measured for the activity of the artificial radioactive nuclide in the radioactive smoke cloud and the flying dust, and the potential internal irradiation hazard can be pre-warned. At present, many companies and research institutes at home and abroad can develop and produce radioactive aerosol monitoring equipment, but the radioactive aerosol alpha artificial nuclide identification function is few, and the monitoring equipment has a large volume and is very inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model aims to provide a portable radioactive aerosol alpha beta energy spectrum monitor to solve among the prior art radioactive aerosol check out test set have radioactive aerosol alpha artificial nuclide recognition function few, and check out test set volume great, carry inconvenient problem.

Solve the technical problem, the utility model discloses a following technical scheme:

a portable radioactive aerosol alpha beta energy spectrum monitor comprises an upper box body and a lower box body, wherein the lower end of the upper box body is fixedly connected with the upper end of the lower box body, and the interior of the upper box body is communicated with the interior of the lower box body through a pipeline; an air inlet assembly is arranged on the upper side in the upper box body, and outside air can enter the upper box body through the air inlet assembly; a detection assembly is arranged inside the upper box body and below the air inlet assembly and is fixedly connected with the upper box body; a first roller and a second roller are respectively arranged on two sides of the detection assembly, filter paper is wound on the first roller, the inner end of the filter paper is fixedly connected with the first roller, and the outer end of the filter paper is wound on the second roller and is fixedly connected with the second roller, so that the filter paper can be wound on the second roller from the first roller; a driving motor is further installed in the upper box body, a roller shaft of the second roller wheel is fixedly connected with a motor shaft of the driving motor, and the driving motor is fixedly connected with the upper box body; the filter paper between the first roller and the second roller passes through the detection assembly, the detection assembly is provided with a detector, and the detector is close to the filter paper in the detection assembly and is used for measuring a sample on the filter paper; the detection assembly also comprises a data processing system which can analyze and process the data information output by the detection assembly; a display is also arranged on one side of the upper box body, and the display is connected with the data processing system circuit and used for displaying data information processed by the data processing system; an air pump and a power supply assembly are arranged in the lower box body, an air inlet end of the air pump is communicated with the interior of the lower box body, an air outlet end of the air pump is communicated with the exterior of the lower box body, and the power supply assembly supplies power to all electrical elements.

Preferably, a handle is further arranged above the upper box body, the handle is U-shaped, and two ends of the handle are respectively connected with the upper ends of two opposite sides of the upper box body in a rotating manner.

Preferably, the upper box body comprises a front cover and a box body, one side of the front cover is rotatably connected with one side of the box body, and the other side of the front cover is connected with the other side of the box body in a locking manner through a lock catch.

Preferably, still be equipped with big dipper subassembly in the upper end of last box, big dipper subassembly links to each other with data processing system and power supply module respectively.

Preferably, the upper end of the upper box body is also provided with an audible and visual alarm which is connected with the data processing system.

Compared with the prior art, the utility model has the advantages of as follows:

the utility modelThe model consists of an upper box body and a lower box body, and realizes artificial nuclide through a detection assembly²⁴¹Am 、²³⁹Pu、²¹⁰The monitor has a Po spectrum recognition function, optimizes the positions of internal components of the monitor, is made of aluminum materials as a main material of a shell of the whole monitor, has smooth integral lines of the shell, is coordinated in size proportion, light in structure, has good man-machine engineering design, is very convenient to carry and flexible, can realize rapid sampling measurement on the volume activity of artificial radioactive nuclides and radioactive aerosols in field environments in radioactive smoke clouds and dust, provides a reference basis for emergency response decision making, and performs early warning on potential internal irradiation hazards; meanwhile, the shell design of the monitor comprehensively considers performance and parameters, electromagnetic compatibility design, three-proofing design, complete machine assembly process optimization and the like, so that the monitor has good electromagnetic shielding capacity, protection capacity, vibration resistance and good operability and maintainability.

Drawings

Fig. 1 is a schematic structural diagram of the portable radioactive aerosol α β energy spectrum monitor of the present invention.

Fig. 2 is a working principle block diagram of the portable radioactive aerosol alpha beta spectrum monitor of the utility model.

In the figure: go up box 1, lower box 2, air inlet assembly 3, determine module 4, first running roller 5, second running roller 6, filter paper 7, air pump 8, power supply module 9, handle 10, big dipper subassembly 11, audible-visual annunciator 12.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b): a portable radioactive aerosol alpha beta energy spectrum monitor comprises an upper box body 1 and a lower box body 2, wherein the lower end of the upper box body is fixedly connected with the upper end of the lower box body, and the interior of the upper box body is communicated with the interior of the lower box body through a pipeline. An air inlet component 3 is arranged on the upper side in the upper box body, and outside air can enter the upper box body through the air inlet component. This subassembly that admits air contains the filter screen, has seted up an trompil in the upper end of last box, and this filter screen is installed in the trompil for particulate impurity among the filtered air. A detection component 4 is arranged in the upper box body and below the air inlet component, and is fixedly connected with the upper box body; the two sides of the detection assembly are respectively provided with a first roller 5 and a second roller 6, the first roller is wound with filter paper 7, the inner end of the filter paper is fixedly connected with the first roller, and the outer end of the filter paper is wound on the second roller and is fixedly connected with the second roller, so that the filter paper can be wound on the second roller from the first roller. When the paper feeding device is used practically, a steering wheel is arranged under the first roller and the second roller respectively, the steering wheel is fixedly connected with the inner wall of the upper box body, the first roller is a paper feeding wheel, the second roller is a paper collecting wheel, the filter paper stretches out of the first roller and extends towards the steering wheel under the second roller after bypassing the steering wheel under the filter paper, and bypasses the steering wheel, so that the filter paper between the two steering wheels is consistent with the horizontal direction, and the filter paper extends to the second roller after bypassing the steering wheel. Still install a driving motor in last box, the roller of second running roller links to each other with driving motor's motor shaft is fixed, and this driving motor links to each other with last box is fixed, and wherein, driving motor's motor shaft links to each other with the roller of the second running roller as the delivery wheel is fixed to drive first running roller through filter paper and rotate, stimulate the second running roller with filter paper from first running roller, the optional step motor of driving motor. The filter paper between the first roller and the second roller penetrates through the detection assembly, and the detection assembly is provided with a detector which is close to the filter paper inside the detection assembly and used for measuring a sample on the filter paper. The detector of the detection assembly is an ion implantation silicon detector and is used for detecting alpha rays and beta rays. The detection assembly further comprises a data processing system which can analyze and process the data information output by the detection assembly. The data processing system comprises a charge sensitive amplifier, a linear amplifier, a high-speed AD acquisition chip and an FPGA core board. And a display is also arranged on one side of the upper box body, and the display is connected with the data processing system circuit and used for displaying data information processed by the data processing system. An air pump 8 and a power supply assembly 9 are arranged in the lower box body, the air inlet end of the air pump is communicated with the interior of the lower box body, the air outlet end of the air pump is communicated with the exterior of the lower box body, and the power supply assembly supplies power to all electrical elements. And a ventilation waveguide window is arranged at the upper part of the lower box body, so that the air circulation is ensured and the leakage of electromagnetic signals is prevented.

When the portable monitoring instrument is specifically implemented, a handle 10 is further arranged above the upper box body, the handle is U-shaped, two ends of the handle are respectively connected with the upper ends of two opposite sides of the upper box body in a rotating mode, the portable monitoring instrument is convenient to carry, and the monitoring instrument can be rapidly placed at a monitoring point for measurement. Go up the box and include protecgulum and box, one side of protecgulum rotates with one side of box and links to each other, and the opposite side passes through the hasp and is connected with the opposite side lock of box, makes and goes up the box and can open, is convenient for maintain and the subassembly is changed. Still be equipped with big dipper subassembly 11 in the upper end of last box, big dipper subassembly links to each other with data processing system and power supply module respectively, realizes the location through big dipper subassembly to in time transmit location information for data processing system, with the demonstration on the display. And the upper end of the upper box body is also provided with an audible and visual alarm 12 which is connected with the data processing system.

In the in-service use, the utility model discloses compact structure, small in size, very portable, operating personnel can hand-carry the monitor is placed it in the position that needs detected fast. The portable radioactive aerosol alpha beta energy spectrum monitor carries out self-checking after being electrified, and self-checking results are uploaded to a display to be displayed after the self-checking is finished. The audible and visual alarm gives out sound prompt, and the monitor automatically enters a standby mode. The monitor can manually switch the working state to enter a measurement mode. And in the measurement mode, the air pump and the fan start to work, and after the outside air passes through the air inlet assembly and the detection assembly, the air path is enriched on the filter paper to form a measurement sample. And an ion implantation silicon detector in the detection assembly measures the sample. After the detector detects alpha and beta rays, the alpha and beta rays are amplified by a charge sensitive amplifier and a linear amplifier in the data processing system and transmitted to an FPGA core board through a high-speed AD acquisition chip to be subjected to amplitude extraction, spectrum analysis and spectrum processing. The detection assembly further includes a flow sensor that outputs flow information. And after the data processing system performs operation and analysis processing on the acquired data information, the nuclide, the concentration activity of the corresponding aerosol and the position information acquired by the data transmission positioning module are transmitted to the display through the RS232 circuit. And the measured data information is sent to a corresponding receiver through a data transmission and positioning module.

The present invention is not limited to the above embodiments, and the same or similar structures as those of the above embodiments of the present invention are all within the protection scope of the present invention.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims (5)

1. A portable radioactive aerosol alpha beta energy spectrum monitor is characterized by comprising an upper box body (1) and a lower box body (2), wherein the lower end of the upper box body is fixedly connected with the upper end of the lower box body, and the interior of the upper box body is communicated with the interior of the lower box body through a pipeline; an air inlet assembly (3) is arranged on the upper side in the upper box body, and outside air can enter the upper box body through the air inlet assembly; a detection component (4) is arranged in the upper box body and below the air inlet component, and is fixedly connected with the upper box body; a first roller (5) and a second roller (6) are respectively arranged on two sides of the detection assembly, filter paper (7) is wound on the first roller, the inner end of the filter paper is fixedly connected with the first roller, and the outer end of the filter paper is wound on the second roller and is fixedly connected with the second roller, so that the filter paper can be wound on the second roller from the first roller; a driving motor is further installed in the upper box body, a roller shaft of the second roller wheel is fixedly connected with a motor shaft of the driving motor, and the driving motor is fixedly connected with the upper box body; the filter paper between the first roller and the second roller passes through the detection assembly, the detection assembly is provided with a detector, and the detector is close to the filter paper in the detection assembly and is used for measuring a sample on the filter paper; the detection assembly also comprises a data processing system which can analyze and process the data information output by the detection assembly; a display is also arranged on one side of the upper box body, and the display is connected with the data processing system circuit and used for displaying data information processed by the data processing system; an air pump (8) and a power supply assembly (9) are arranged in the lower box body, an air inlet end of the air pump is communicated with the interior of the lower box body, an air outlet end of the air pump is communicated with the exterior of the lower box body, and the power supply assembly supplies power to all electrical elements.

2. The portable radioactive aerosol α β energy spectrum monitor according to claim 1, wherein a handle (10) is further provided above the upper box, the handle is U-shaped, and both ends of the handle are rotatably connected to the upper ends of the opposite sides of the upper box.

3. The portable radioactive aerosol α β energy spectrum monitor according to claim 1, wherein the upper case comprises a front cover and a case body, one side of the front cover is rotatably connected to one side of the case body, and the other side is connected to the other side of the case body by a lock.

4. The portable radioactive aerosol alpha beta energy spectrum monitor according to claim 1, wherein a Beidou component (11) is further arranged at the upper end of the upper box body, and is respectively connected with the data processing system and the power supply component.

5. The portable radioactive aerosol α β energy spectrum monitor according to claim 1, wherein an audible and visual alarm (12) is further provided at the upper end of the upper box, and the audible and visual alarm is connected to the data processing system.

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