Receiver assembly of ray level meter

Abstract

The utility model discloses a receiver assembly of a ray level meter, which belongs to the technical field of sensors and comprises a shell, a crystal, a photoelectric assembly and a circuit board assembly, the crystal is arranged in the shell, one end of the crystal is connected with the photoelectric assembly, and one side of the photoelectric assembly far away from the crystal is detachably connected with the circuit board assembly. The end cover is arranged on the side, away from the crystal, of the outer portion of the shell, the waterproof and dustproof connector is detachably connected to the upper portion of the end cover, when some elements are damaged, the whole sensor does not need to be replaced, only corresponding damaged parts need to be replaced, maintenance and replacement cost is obviously reduced, installation and maintenance are convenient, radial design, solid-state, liquid-state and slurry-state design are adopted, and the service life of the sensor is prolonged. Conductive and non-conductive substances can be stably measured without being influenced by a medium, and the anti-interference capability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, in particular to a receiver component of a ray level meter. Background Art

[0002] In the metallurgical process, the material level in a closed reactor or open crystallizer is an important process parameter. However, reactors or crystallizers often have special working conditions such as high temperature, high pressure, and strong acidity, and may also have equipment such as stirring devices that interfere with measurement. At present, conventional measuring instruments are mostly used to measure materials.

[0003] During the measurement process using conventional measuring instruments, conventional measuring instruments are easily affected by the measured medium, have poor anti-interference capabilities, and are inconvenient to install and maintain. Utility Model Content

[0004] The purpose of the present invention is to provide a receiver assembly for a radiation level meter to solve at least one aspect of the problems and defects raised in the above background technology.

[0005] Provided is a receiver assembly for a radiation level meter, comprising a housing, a crystal, a photoelectric assembly, and a circuit board assembly. The housing is provided with a crystal, one end of the crystal is connected to the photoelectric assembly, a side of the photoelectric assembly away from the crystal is detachably connected to the circuit board assembly, an end cap is provided on the outside of the housing away from the crystal, and a waterproof and dustproof connector is detachably connected above the end cap.

[0006] Furthermore, a first sealing ring is provided between the outer shell and the crystal component. The first sealing ring prevents the intrusion of moisture and dust. In an environment with high humidity, the intrusion of moisture may cause corrosion and short circuit of the circuit board; in an environment with a lot of dust, the accumulation of dust may affect the sensitivity of the optoelectronic component. Through the electrical insulation effect, the first sealing ring ensures the electrical isolation between the outer shell and the crystal component, preventing the electric field in the external environment from interfering with the operation of the crystal component.

[0007] Furthermore, the optoelectronic component includes a sleeve, a photomultiplier tube and a light guide. The sleeve is arranged in a shell, and a light guide and a photomultiplier tube are arranged inside the sleeve. One end of the light guide is connected to a crystal, and the end of the light guide away from the crystal is connected to the photomultiplier tube. The end of the photomultiplier tube away from the light guide is connected to a circuit board assembly. The light guide is used to transmit light signals. The signal generated by the crystal is transmitted to the photomultiplier tube through the light guide, reducing signal attenuation and interference, and improving the timing and signal transmission efficiency of the sensor. The photomultiplier tube is used to convert the received light signal into an electrical signal, enhance the signal strength through the multiplication effect, and transmit the signal to the circuit board assembly to ensure the stability and consistency of signal transmission. It can also maintain reliable measurement performance in industrial scenarios with complex electromagnetic environments through anti-electromagnetic interference design.

[0008] Furthermore, a first silicone pad is provided at the connection between the photomultiplier tube and the crystal. The elastic material properties of the first silicone pad can effectively absorb mechanical shock and external shock, protecting precision components such as the photomultiplier tube and the crystal from damage caused by impact. The first silicone pad has a certain sealing effect, which can prevent water or moisture from entering the connection area between the photomultiplier tube and the crystal.

[0009] Furthermore, a second silicone pad is provided at the connection between the photomultiplier tube and the light guide. The elastic material properties of the second silicone pad can effectively absorb mechanical shock and external shock, protecting precision components such as the photomultiplier tube and the light guide from damage caused by external impact. The first silicone pad has a certain sealing effect, which can prevent water or moisture from entering the connection area between the photomultiplier tube and the crystal.

[0010] Furthermore, a second sealing ring is provided between the shell and the sleeve. The main function of the second sealing ring is to ensure that the connection between the shell and the crystal can be effectively sealed to prevent external liquid from entering the interior of the device. The second sealing ring can provide a buffer between the shell and the crystal and absorb mechanical impact.

[0011] Furthermore, a third sealing ring is provided between the waterproof and dustproof joint and the outer shell. The main function of the third sealing ring is to ensure that the connection between the waterproof and dustproof joint and the outer shell can be effectively sealed to prevent external liquid from entering the interior of the device. The third sealing ring can provide a buffer between the waterproof and dustproof joint and the outer shell, and absorb mechanical closure and impact. The presence of the third sealing ring helps to maintain the stability of the connection between the waterproof and dustproof joint and the outer shell, and maintain a good sealing state even when the temperature changes or the device moves.

[0012] Furthermore, an elastic gasket is provided between the end cover and the waterproof and dustproof joint. The elastic gasket is usually made of rubber or other elastic materials, forming a sealing layer between the end cover and the waterproof and dustproof joint to prevent liquid and dust from entering the interior of the waterproof and dustproof joint. The elastic gasket can absorb and disperse external pressure or impact through its elastic properties, thereby reducing direct pressure on the joint and the connection parts.

[0013] Furthermore, the crystal is arranged horizontally or vertically. The horizontally arranged crystal can save vertical space. Especially when the circuit board space is limited, the vertically arranged crystal helps to increase the ray receiving cross-sectional area, thereby increasing the sensitivity of sensor detection.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The sensor housing contains crystals, optoelectronic components and circuit board components, making the entire sensor structure complete and easy to install and maintain. The optoelectronic components can effectively transmit signals from the crystal to the circuit board components, reducing signal attenuation while improving detection reset and accuracy. The components inside the sensor, such as crystals, optoelectronic components and circuit boards, can be separated and replaced. When some components are damaged, there is no need to replace the entire sensor. Usually, the corresponding damaged parts can be replaced, which significantly reduces maintenance and replacement costs. It is more convenient to install, operate and maintain, and the sensor has a high availability and reliability.

[0016] Adopting the ray-type design, solid, liquid and slurry, conductive and non-conductive materials can be stably measured without being affected by the medium and with strong anti-interference ability;

[0017] In addition, the overall structure of the sensor is compact and small in size. It can be installed in industrial scenarios with limited space or requiring high precision, reducing the installation and maintenance troubles caused by the sensor's large size, which is conducive to practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall cross-sectional structure of a receiver assembly of a radiographic level meter with a crystal placed laterally;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a vertically placed crystal provided in an embodiment of the present utility model.

[0021] In the figure: 1. Housing; 2. Crystal; 3. Optoelectronic component; 31. Sleeve; 32. Light guide; 33. Photomultiplier tube; 4. Circuit board assembly; 5. End cover; 6. Waterproof and dustproof connector; 7. First sealing ring; 8. First silicone pad; 9. Second silicone pad; 10. Second sealing ring; 11. Third sealing ring; 12. Elastic gasket. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-2 As shown, in an embodiment of the present invention, a receiver assembly of a radiation level meter includes a housing 1, a crystal 2, a photoelectric assembly 3, and a circuit board assembly 4. The housing 1 contains the crystal 2, the photoelectric assembly 3, and the circuit board assembly 4, making the entire sensor structure complete and easy to install and maintain. The photoelectric assembly 3 can effectively transmit signals from the crystal 2 to the circuit board assembly 4, reducing signal attenuation and improving detection reset and accuracy.

[0029] The housing 1 is provided with a crystal 2, one end of the crystal 2 is connected to a photoelectric component 3, and the side of the photoelectric component 3 away from the crystal 2 is detachably connected to a circuit board component 4, and an end cover 5 is provided on the outside of the housing 1 away from the crystal 2. A waterproof and dustproof connector 6 is detachably connected above the end cover 5, the end cover 5, the end cover 5 and the waterproof and dustproof connector 6, a radioactive source (the radioactive source can be a cesium source, a cobalt source, etc.) irradiates the radiation to pass through the crystal 2, and the crystal 2 transmits the light flashing signal to the photoelectric component 3, and the photoelectric component 3 converts the light signal into an electrical signal, amplifies or processes the electrical signal, and then converts the electrical signal into an electrical signal for further analysis and display through the circuit board component 4, and transmits the level signal detected by the sensor to the control system, so as to realize real-time monitoring and feedback of the level. With a ray-type design, solid, liquid and slurry, conductive and non-conductive materials can be stably measured, and are not affected by the medium, and have strong anti-interference ability;

[0030] The circuit board assembly 4 specifically includes a tube base plate, a high-voltage board, a sampling board, and a control board. The tube base plate is used to mount the photomultiplier tube socket, dynode-level voltage divider resistors, and filter capacitors. The tube base plate connects the DC high-voltage power supply and high-frequency pulse signal to the high-voltage board via a wiring harness. The high-voltage board amplifies the control voltage of the photomultiplier tube 33 output by the sampling board to the required high voltage. The high-voltage board then connects to the tube base plate via a board-to-board wiring harness, ultimately providing power to the photomultiplier tube 33. The sampling board is connected to the waterproof and dustproof connector 6 of the sensor through a silicone soft wire harness, and obtains power supply, outputs standard pulse level signals and communication signals from the connector. On the one hand, the sampling board transfers the control voltage output by the control board to the high-voltage board to adjust the working voltage of the photomultiplier tube 33. On the other hand, the sampling board conditions the original pulse signal transmitted by the high-voltage board and outputs the standard pulse level signal to the waterproof and dustproof connector 6. The control board has a single-chip microcomputer and a storage chip, which communicate with the instrument through the communication interface to realize identity recognition and parameter setting and storage. The level meter receiver component can be widely used in measurement scenarios of solid, liquid, slurry and other material levels. The components inside the sensor, such as the crystal 2, the photoelectric component 3 and the circuit board component 4, can be separated and replaced. When some components are damaged, there is no need to replace the entire sensor. Usually, the corresponding damaged parts can be replaced, which significantly reduces the maintenance and replacement costs.

[0031] The sensor's overall structure is compact and small in size, making it suitable for installation in industrial scenarios with limited space or high precision requirements, reducing the installation and maintenance hassles associated with large sensors.

[0032] In one embodiment, see Figure 1 and Figure 2 As shown, a first sealing ring 7 is provided between the housing 1 and the crystal component 2. The first sealing ring 7 prevents the intrusion of moisture and dust. In an environment with high humidity, the intrusion of moisture may cause corrosion and short circuit of the circuit board; in an environment with a lot of dust, the accumulation of dust may affect the sensitivity of the optoelectronic component 3. Through the electrical insulation effect, the first sealing ring 7 ensures the electrical isolation between the housing 1 and the crystal component 2, preventing the electric field in the external environment from interfering with the operation of the crystal component 2.

[0033] In one embodiment, see Figure 1 and Figure 2As shown, the optoelectronic component 3 includes a sleeve 31, a light guide 32 and a photomultiplier tube 33. The sleeve 31 is arranged in the housing 1, and the light guide 32 and the photomultiplier tube 33 are arranged inside the sleeve 31. One end of the light guide 32 is connected to the crystal 2, and the end of the light guide 32 away from the crystal 2 is connected to the photomultiplier tube 33. The end of the photomultiplier tube 33 away from the light guide 32 is connected to the circuit board assembly 4. In addition, in order to meet the requirements of resistance to electromagnetic stirring, mechanical space is reserved at the position of the photomultiplier tube 33 during mechanical design, and a sleeve 31 made of magnetic shielding material is added to effectively attenuate electromagnetic stirring interference. The light guide 32 is used to transmit optical signals, and the light guide 32 is connected between the crystal 2 and the photomultiplier tube 33. The signal generated by the crystal 2 is transmitted to the photomultiplier tube 33 through the optical fiber 32, reducing the attenuation and interference of the signal and improving the timing and signal transmission efficiency of the sensor. The photomultiplier tube 33 is used to convert the received optical signal into an electrical signal, enhance the signal strength through the multiplication effect, and transmit the signal to the circuit board assembly 4 to ensure the stability and consistency of the signal transmission. It can also maintain reliable measurement performance in industrial scenarios with complex electromagnetic environments through anti-electromagnetic interference design.

[0034] In one embodiment, see Figure 1 and Figure 2 As shown, a first silicone pad 8 is provided at the connection between the photomultiplier tube 33 and the crystal 2. The elastic material properties of the first silicone pad 8 can effectively absorb mechanical shock and external shock, and protect the photomultiplier tube 33, the crystal 2 and other precision components from damage due to impact. The first silicone pad 8 has a certain sealing effect, and can prevent water or moisture from entering the connection area between the photomultiplier tube 33 and the crystal 2.

[0035] In one embodiment, see Figure 1 and Figure 2 As shown, a second silicone pad 9 is provided at the connection between the photomultiplier tube 33 and the light guide 32. Similarly, the elastic material properties of the second silicone pad 9 can effectively absorb mechanical shock and external shock, and protect the photomultiplier tube 33, the light guide 32 and other precision components from damage caused by external impact. The first silicone pad 8 has a certain sealing effect, which can prevent water or moisture from entering the connection area between the photomultiplier tube 33 and the crystal 2.

[0036] In one embodiment, see Figure 1 and Figure 2 As shown, a second sealing ring 10 is provided between the housing 1 and the crystal 2. The main function of the second sealing ring 10 is to ensure that the connection between the housing 1 and the crystal 2 can be effectively sealed to prevent external liquid from entering the interior of the device. The second sealing ring 10 can provide a buffer between the housing 1 and the crystal 2 and absorb mechanical impact.

[0037] In one embodiment, see Figure 1 and Figure 2 As shown, a third sealing ring 11 is provided between the waterproof and dustproof joint 6 and the outer shell 1. The main function of the third sealing ring 11 is to ensure that the connection between the waterproof and dustproof joint 6 and the outer shell 1 can be effectively sealed to prevent external liquid from entering the interior of the device. The third sealing ring 11 can provide a buffer between the waterproof and dustproof joint 6 and the outer shell 1, and absorb mechanical closure and impact. The presence of the third sealing ring 11 helps to maintain the stability of the connection between the waterproof and dustproof joint 6 and the outer shell 1, and maintain a good sealing state even when the temperature changes or the device moves.

[0038] In one embodiment, see Figure 1 and Figure 2 As shown, an elastic gasket 12 is further provided between the end cap 5 and the waterproof and dustproof joint 6. The elastic gasket 12 is usually made of rubber or other elastic materials, and forms a sealing layer between the end cap 5 and the waterproof and dustproof joint 6 to prevent liquid and dust from entering the interior of the waterproof and dustproof joint 6. The elastic gasket 12 can absorb and disperse external pressure or impact through its elastic properties, thereby reducing direct pressure on the joint and the connection part.

[0039] In one embodiment, see Figure 1 and Figure 2 As shown, the crystal 2 is arranged horizontally or vertically. The horizontally arranged crystal 2 can save vertical space, especially when the circuit board space is limited. The vertically arranged crystal 2 helps to increase the ray receiving cross-sectional area, thereby increasing the sensitivity of sensor detection.

[0040] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A receiver assembly of a radiation level meter, comprising a housing (1), a crystal (2), a photoelectric assembly (3) and a circuit board assembly (4), characterized in that: The housing (1) is provided with a crystal (2), one end of the crystal (2) is connected to a photoelectric component (3), a side of the photoelectric component (3) away from the crystal (2) is detachably connected to a circuit board component (4), an end cover (5) is provided on the outside of the housing (1) away from the crystal (2), and a waterproof and dustproof connector (6) is detachably connected above the end cover (5).

2. The receiver assembly of a radiation level meter according to claim 1, characterized in that: A first sealing ring (7) is provided between the housing (1) and the crystal (2).

3. The receiver assembly of a radiation level meter according to claim 1, characterized in that: The photoelectric assembly (3) comprises a sleeve (31), a light guide (32) and a photomultiplier tube (33); the sleeve (31) is arranged in a housing (1); the light guide (32) and the photomultiplier tube (33) are arranged inside the sleeve (31); one end of the light guide (32) is connected to the crystal (2); the end of the light guide (32) away from the crystal (2) is connected to the photomultiplier tube (33); and the end of the photomultiplier tube (33) away from the light guide (32) is connected to a circuit board assembly (4).

4. The receiver assembly of a radiation level meter according to claim 3, characterized in that: A first silica gel pad (8) is provided at the connection between the photomultiplier tube (33) and the crystal (2).

5. The receiver assembly of the radiation level meter according to claim 3, characterized in that: A second silicone pad (9) is provided at the connection between the photomultiplier tube (33) and the light guide (32).

6. The receiver assembly of a radiation level meter according to claim 3, characterized in that: A second sealing ring (10) is provided between the housing (1) and the sleeve (31).

7. The receiver assembly of a radiation level meter according to claim 1, characterized in that: A third sealing ring (11) is provided between the waterproof and dustproof joint (6) and the housing (1).

8. The receiver assembly of a radiation level meter according to claim 1, characterized in that: An elastic gasket (12) is also provided between the end cover (5) and the waterproof and dustproof joint (6).

9. The receiver assembly of the radiation level meter according to any one of claims 1 to 8, characterized in that: The crystal (2) is arranged horizontally or vertically.

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