Sea area nuclear sewage detection device based on Geiger counter principle

Abstract

The utility model relates to a sea area nuclear sewage detection device based on the principle of a Geiger counter, and belongs to the field of nuclear sewage detection equipment, the sea area nuclear sewage detection device comprises an upper shell and a lower shell, the upper shell and the lower shell are connected in a sealing manner, and sealing cavities are formed in the upper shell and the lower shell respectively, the maximum cross section area of the lower shell is larger than that of the upper shell; a mounting cavity is formed between the upper partition plate and the side wall of the upper shell, and a balancing weight is arranged in the lower shell. The Geiger counter is horizontally arranged in the lower shell; the microcontroller and the battery pack are both arranged on the upper partition plate and located in the mounting cavity, the microcontroller is connected with the battery pack, and the Geiger counter is connected with the microcontroller; according to the scheme, the sewage detection device can vertically float in seawater all the time, the Geiger counter can be in a horizontal state all the time to detect the nuclear pollution condition in the seawater, and the sewage detection device can drift to a farther sea area to detect deeper and farther sea areas.

Description

Technical Field

[0001] The utility model relates to the field of nuclear sewage detection equipment, in particular to a marine nuclear sewage detection device based on the principle of a Geiger counter. Background Art

[0002] A Geiger counter, also known as a Geiger-Muller counter, is a counting instrument specialized for detecting the intensity of ionizing radiation. It uses an inflated tube or chamber as a probe. When the voltage applied to the probe reaches a certain range, each pair of ions ionized by the ray in the tube can be amplified to generate an electric pulse of the same size and recorded by the connected electronic device, thereby measuring the number of rays per unit time. When using a Geiger counter for measurement, the currently common method is to put the Geiger counter in a waterproof plastic bag and then throw the Geiger counter into the sea water to measure the radiation value. Another method is to hold the Geiger counter and keep its bottom surface about 10 - 15 cm away from the sea level, and record the data value after the instantaneous value is relatively stable. The disadvantage of the former measurement method is that once the waterproof plastic bag leaks, the Geiger counter is equivalent to being completely immersed in water, which may damage the sensitive components of the Geiger counter, affect its normal operation and even shorten its service life. The disadvantage of the latter measurement method is that the measurement area is too limited, generally near the coast where the water depth is relatively shallow, which affects the accuracy of detection. Summary of the Utility Model

[0003] The existing nuclear sewage radiation detection device mainly measures through a Geiger counter. However, when using a Geiger counter for measurement, on the one hand, sea water is likely to invade the inside of the Geiger counter, damaging the sensitive components inside the Geiger counter, affecting its normal operation and even shortening its service life. On the other hand, the measurement area is too limited, and the measurement area is generally near the coast where the water depth is relatively shallow, affecting the accuracy of detection. At least one aspect or one purpose of this application can solve the above problems. Specifically, a marine nuclear sewage detection device based on the principle of a Geiger counter is designed, and the technical solution adopted is as follows:

[0004] A marine nuclear sewage detection device based on the principle of a Geiger counter, comprising:

[0005] An upper shell and a lower shell, which are hermetically connected between the upper shell and the lower shell to form a sealed cavity inside their respective bodies. The maximum cross-sectional area of the lower shell is larger than the maximum cross-sectional area of the upper shell. There is an upper partition inside the upper shell, and an installation cavity is formed between the upper partition and the side wall of the upper shell. A counterweight block is provided inside the lower shell;

[0006] A Geiger counter, which is horizontally arranged inside the lower shell;

[0007] A microcontroller and a battery pack are both arranged on the upper partition board and located in the installation cavity. The microcontroller is connected to the battery pack and powered by the battery pack. The Geiger counter is connected to the microcontroller and can transmit pulse signals to the microcontroller.

[0008] Preferably, it further includes:

[0009] A GPS positioning module, which is arranged inside the upper shell.

[0010] Preferably, it further includes solar panels. A plurality of solar panels are evenly spaced along the circumferential direction of the upper shell and arranged on the outer wall of the upper shell. The plurality of solar panels are connected in series and connected to the battery pack.

[0011] Preferably, the upper shell and the lower shell are respectively in a semi-elliptical shape. The upper shell and the lower shell are connected by threads, and a sealing ring is provided between the contact surfaces of the threaded connection between the upper shell and the lower shell.

[0012] Preferably, a lower partition board is further arranged inside the lower shell. The lower partition board is arranged close to the connection surface of the lower shell. The Geiger counter is arranged below the lower partition board and fixed to the lowest position of the lower shell by connecting glue.

[0013] Preferably, a plurality of counterweights are provided, and the plurality of counterweights are evenly spaced along the circumferential direction of the lower shell.

[0014] Preferably, the upper shell and the lower shell are respectively plastic shells.

[0015] By the above technical solutions, the present utility model has the following technical effects:

[0016] ① The sewage detection device can be thrown into the sea water. Since the cross-section of the lower shell is larger than that of the upper shell, and counterweights are arranged on the lower shell, the sewage detection device can always float vertically in the sea water, and the Geiger counter can always be in a horizontal state and located below the water surface, so as to detect the nuclear pollution situation in the sea water. At the same time, the Geiger counter can transmit the detection signal to the microcontroller and be displayed by an external terminal wirelessly connected to the microcontroller. Therefore, the detection device can drift to a farther sea area to detect deeper and farther sea areas; in addition, with the cooperation of GPS positioning, the position result of the detection device can be obtained, and then the position information can be transmitted to the external terminal device.

[0017] ② Since the Geiger counter is arranged in the sealed lower shell, it is basically impossible for sea water to invade its interior and damage the internal sensitive components, ensuring its service life. Description of the Drawings

[0018] Figure 1 It is a three-dimensional view of the present utility model;

[0019] Figure 2It is a perspective view of the upper housing;

[0020] Figure 3 It is a cross-sectional view of the present utility model.

[0021] In the figure, 1 is the lower housing, 2 is the upper housing, 3 is the solar panel, 4 is the upper partition, 5 is the installation cavity, 6 is the microcontroller, 7 is the battery pack, 8 is the lower partition, 9 is the counterweight, and 10 is the Geiger counter. Specific embodiments

[0022] To clearly illustrate the technical features of the present solution, the present utility model will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0023] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] As Figures 1-3 shown, a sea area nuclear sewage detection device based on the principle of a Geiger counter includes an upper housing 2 and a lower housing 1. The upper housing 2 and the lower housing 1 are hermetically connected and form a sealed cavity inside their respective bodies. When using it to detect the radiation intensity of nuclear sewage in the sea area, the entire detection device is thrown into the sea water and always floats on the sea surface. Therefore, in order to ensure that the detection device always floats on the sea surface, the maximum cross-sectional area of the lower housing 1 is larger than the maximum cross-sectional area of the upper housing 2, and a counterweight 9 is provided inside the lower housing 1. The counterweight 9 here can be made of a wooden block, which can not only increase the buoyancy but also lower the center of gravity of the entire detection device, so that the detection device is always in a vertical state and at the same time ensures that the detection device always floats vertically on the sea surface. In order to be able to install other components inside the upper housing 2, an upper partition 4 is also provided inside the upper housing 2. The upper partition 4 is horizontally arranged and forms an installation cavity 5 with the side wall of the upper housing 2. Here, the upper partition 4 and the side wall of the upper housing 2 can be connected by strong glue, or a flange can be integrally formed on the side wall of the upper housing 2, and the upper partition 4 is bonded to the upper side surface of the flange, or the upper side surface of the flange can also be fixed by screw connection, and a sealing material is provided on the abutting surface to ensure the sealing performance.

[0025] In addition, it should be noted that the number of counterweights 9 is determined according to the dimensions of the upper housing 2 and the lower housing 1, and through water tests to ensure that it can maintain a vertical state while always floating on the water surface.

[0026] A Geiger counter 10 is also provided inside the lower housing 1. The Geiger counter here uses an existing product, and its structure is prior art. It is horizontally arranged inside the lower housing 1 and is located below the sea surface during detection, used to detect the radiation intensity of seawater nuclear pollution.

[0027] The Geiger counter 10 here uses an existing product. However, in order to be applicable to this working condition, the output pins of the Geiger counter 10 are routinely adjusted.

[0028] A microcontroller 6 and a battery pack 7 are also provided inside the installation cavity 5 of the upper housing 2. They are both arranged on the upper partition 4. The microcontroller 6 is connected to the battery pack 7, and the battery pack 7 supplies power to the microcontroller 6. The Geiger counter 10 is connected to the microcontroller 6. This connection can achieve signal transmission, and the specific connection can be realized through prior art.

[0029] The microcontroller 6 here is an STM32 microcontroller 6. The output pins of the Geiger counter 10 here are connected to the GPIO (output pins) of the STM32 to ensure electrical characteristic matching.

[0030] In the code of the STM32, initialize the GPIO, use the corresponding library function to initialize the GPIO pins, and configure them as input mode.

[0031] In order to receive the input of the Geiger counter 10 in real time, the external interrupt function of the STM32 can be used. By configuring the external interrupt trigger condition and interrupt priority, the interrupt service program can be immediately triggered when the counter input is received.

[0032] Write an interrupt service program to process the received counter input. In the interrupt service program, operations such as accumulation of counter values, data processing, and storage can be performed. According to specific requirements, the received counter input can be processed and wirelessly transmitted to an external terminal. This data wireless transmission can be realized in the form of inserting a SIM card on the STM32 microcontroller 6.

[0033] Furthermore, in order to timely know the position of this detection device and the position of the nuclear pollution source, a GPS positioning module is also included. The GPS positioning module is arranged inside the upper housing 2. The positioning principle and structure of the GPS positioning module are both mature prior art, and this application just directly uses them.

[0034] Further, in order to support the long-term operation of the device, it further includes a solar panel 3. A plurality of solar panels 3 are provided, and the plurality of solar panels 3 are evenly spaced along the circumference of the upper housing 2 and arranged on the outer wall of the upper housing 2. The even spacing arrangement can make the upper housing 2 receive uniform force, avoiding the detection device from tilting in water. The plurality of solar panels 3 are connected in series and connected to the battery pack 7. The electric energy generated by the solar panels 3 is stored in the battery pack 7.

[0035] The above-mentioned solar panel 3 also adopts the existing solar panel 3 power generation technology, which is the existing technology. This application only selectively uses it according to the volume of the detection device and the power generation power of the solar panel 3, and does not make improvements to the structure of the solar panel 3.

[0036] Further, the upper housing 2 and the lower housing 1 are respectively in a semi-elliptical shape. The elliptical structure is easier to keep it in a vertical state in seawater (similar to the shape of a tumbler). The upper housing 2 and the lower housing 1 are connected by threads. The threaded connection is convenient for disassembly. A sealing ring is provided between the contact surfaces of the threaded connection between the upper housing 2 and the lower housing 1. The sealing ring is made of a silica gel ring or a rubber ring, which can play a sealing role to prevent seawater from entering the interior of the detection device and damaging the internal components.

[0037] Further, a lower partition 8 is also provided inside the lower housing 1. The lower partition 8 is bonded to the inner wall of the lower housing 1 by waterproof sealant. The lower partition 8 is arranged close to the connection surface of the lower housing 1. The lower partition 8 can play a role of secondary sealing to further prevent seawater from soaking into the Geiger counter 10. The Geiger counter 10 is arranged below the lower partition 8 and fixed to the lowest position of the lower housing 1 by connecting glue. In this way, the Geiger counter 10 can be closer to the contact distance of seawater, further improving the detection accuracy.

[0038] Further, a plurality of the above-mentioned counterweights 9 are provided, and the plurality of counterweights 9 are evenly spaced along the circumference of the lower housing 1. The counterweights 9 are arranged in this way to ensure the balanced force of the whole device and avoid the detection device from tilting.

[0039] Further, the upper housing 2 and the lower housing 1 are respectively plastic housings, and the upper partition 4 and the lower partition 8 are both plastic plates. The plastic material is light in weight and has large buoyancy, which can ensure that it can float on the sea surface with a smaller volume. At the same time, it is also easy to set the counterweights 9 to make the whole detection device in a vertical state.

[0040] The above specific implementation manners cannot be used as a limitation to the protection scope of the present invention. For those skilled in the art of this technology, any alternative improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0041] Where the present invention is not described in detail, it is all well-known technology to those skilled in the art of this technology.

Claims

1. A marine nuclear sewage detection device based on the principle of Geiger counter, characterized in that, Comprising: An upper housing and a lower housing, which are hermetically connected between the upper housing and the lower housing to form a sealed cavity inside their respective interiors. The maximum cross-sectional area of the lower housing is larger than the maximum cross-sectional area of the upper housing. An upper partition is provided inside the upper housing, and an installation cavity is formed between the upper partition and the side wall of the upper housing. A counterweight is provided inside the lower housing; A Geiger counter, which is horizontally arranged inside the lower housing; A microcontroller and a battery pack, both of which are arranged on the upper partition and located inside the installation cavity. The microcontroller is connected to the battery pack and is powered by the battery pack. The Geiger counter is connected to the microcontroller and can transmit pulse signals to the microcontroller.

2. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 1, wherein Further comprising: A GPS positioning module, which is arranged inside the upper housing.

3. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 1 or 2, characterized in that, Further comprising: Solar panels, a plurality of the solar panels are evenly spaced along the circumference of the upper housing and arranged on the outer wall of the upper housing. The plurality of solar panels are connected in series and connected to the battery pack.

4. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 1, characterized in that, The upper housing and the lower housing are respectively in a semi-elliptical shape, and the upper housing and the lower housing are threadedly connected. A sealing ring is provided between the contact surfaces of the threaded connection between the upper housing and the lower housing.

5. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 4, characterized in that, A lower partition is further provided inside the lower housing. The lower partition is arranged close to the connection surface of the lower housing. The Geiger counter is arranged below the lower partition and is fixed to the lowest position of the lower housing by connecting glue.

6. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 5, wherein, A plurality of the counterweights are provided, and the plurality of counterweights are evenly spaced along the circumference of the lower housing.

7. The marine nuclear sewage detection device based on the Geiger counter principle according to claim 1, characterized in that, The upper housing and the lower housing are respectively plastic housings.

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