A LabVIEW-based pulsed neutron generator

Abstract

This utility model relates to the field of neutron generator technology, and in particular to a LabVIEW-based pulsed neutron generator, comprising a generator body, with a number of interfaces on the front of the generator body, each interface including an outer dust cover and an inner dust cover inside the outer dust cover, with a scraper at the entrance of the outer and inner dust covers. When a connector is inserted into the interface, the scraper removes dust from the connector. A main pipeline is located inside the generator body. An air inlet is provided at the top of the outer dust cover. By employing multiple designs at the interface, including an outer dust cover, an inner dust cover, and a scraper, the surface dust can be pre-removed by the scraper when the connector is inserted, reducing the risk of impurities entering. Combined with a peristaltic pump-driven gas injection mechanism, the outer dust cover is inflated and fits tightly against the connector, significantly reducing the fluctuation in neutron generator operation caused by interface contamination.

Description

Technical Field

[0001] This utility model relates to the field of neutron generator technology, specifically a pulsed neutron generator based on LabVIEW. Background Technology

[0002] A neutron tube is an electrovacuum device that seals an ion source, acceleration system, target, and pressure regulation system within a ceramic or glass tube. The neutron tube, along with its matching storage power supply, ion source power supply, acceleration high-voltage power supply, and corresponding control and detection circuits, constitutes a miniature neutron generator. After years of development, portable, mobile, and miniaturized neutron generators have found wide application in oil well logging, coal quality analysis, and medical fields.

[0003] Traditional pulsed neutron generator interfaces lack effective dustproof measures. During long-term use, dust, moisture, and other impurities from the external environment easily adhere to the inside of the interface and the connector. When the connector is inserted into the interface, these impurities may cause poor contact, affecting the stability of signal transmission or power supply, and consequently causing neutron generator malfunctions such as neutron yield fluctuations and pulse signal distortion. Furthermore, existing pulsed neutron generator status feedback systems have many shortcomings. Regarding parameter acquisition, there is a lack of comprehensive and targeted acquisition methods, often only obtaining some basic parameters, making it difficult to reflect the overall status of the equipment; signal processing capabilities are weak, easily affected by pulse interference, leading to data distortion; and the data interaction and analysis modules are functionally limited, mostly only capable of simple data display, lacking in-depth analysis and automatic control capabilities. Summary of the Invention

[0004] The purpose of this invention is to provide a LabVIEW-based pulsed neutron generator to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A LabVIEW-based pulsed neutron generator, including The generator body has a number of interfaces on its front side. Each interface includes an outer dust cover and an inner dust cover inside the outer dust cover. Dust scrapers are provided at the entrances of the outer and inner dust covers. When a connector is inserted into the interface, the dust scrapers remove dust from the connector. The main pipeline is located inside the generator body. The top of the outer dust cover has an air inlet. The main pipeline is connected to multiple outer dust covers via an air injection pipe, and the air injection pipe is connected to the inside of the outer dust cover via the air inlet. A peristaltic pump is located inside the generator body and above the generator body. The peristaltic pump can inject external gas into the interior of the outer dust cover.

[0006] Preferably, the peristaltic pump includes a peristaltic chamber and a motor. The inner wall of the peristaltic chamber is provided with a flexible tube, which is attached to the inner wall of the peristaltic chamber and has one end extending through the peristaltic chamber. The output end of the motor is provided with a power shaft, and a squeezing block is provided on the outside of the power shaft.

[0007] Preferably, one end of the hose is connected to the main pipeline, the air injection pipe includes a connecting pipe, the bottom of the connecting pipe is provided with an air injection head, the inner cavity of the air injection head is provided with a barrier ring, the barrier ring can move up and down with the change of pressure in the inner cavity of the air injection head, the bottom outer edge of the air injection head has an air injection hole, and the bottom of the air injection head is set in the inner cavity of the outer dust cover through the air inlet.

[0008] Preferably, the outer side of the extrusion block is fitted with the inner cavity of the peristaltic chamber, an exhaust port is provided on one side of the generator body, and one end of the hose is disposed in the exhaust port.

[0009] Preferably, the inner wall of the gas injection head is provided with a torsion spring, and the bottom of the torsion spring is connected to the top of the barrier ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a multi-layered design at the interface, including an outer dust cover, an inner dust cover, and a dust scraper. The dust scraper pre-removes surface dust before insertion, reducing the risk of impurities entering. Combined with a peristaltic pump-driven gas injection mechanism, the outer dust cover, after inflation, fits tightly against the connector, forming a dynamic seal. This effectively blocks dust, liquids, and other impurities, preventing signal transmission or power supply abnormalities caused by poor contact, and significantly reducing neutron generator operational fluctuations due to interface contamination. Furthermore, the barrier ring inside the air injection tube works in conjunction with the torsion spring to automatically control the opening and closing of the air injection hole according to the air injection pressure. When the outer dust cover is inflated to the preset pressure, the barrier ring blocks the air injection hole to prevent excessive expansion and damage to the dust cover; when evacuating, the torsion spring drives the barrier ring to reset, ensuring smooth gas discharge and allowing the outer dust cover to contract flexibly, which not only ensures the sealing effect but also extends the service life of the component and reduces maintenance and replacement costs.

[0011] Furthermore, the multiple dustproof sealing design ensures the cleanliness and sealing of the interface. Combined with a comprehensive status feedback system, it enables real-time monitoring, accurate analysis, timely early warning, and automatic control of the equipment, significantly improving the operational reliability, stability, and automation of the pulse neutron generator, reducing equipment failure risks and maintenance costs, and making it suitable for various application scenarios with high equipment performance requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front cross-sectional view of the generator body in this utility model; Figure 3 This utility model Figure 2 Cross-sectional view of the overall structure of the interface; Figure 4 This utility model Figure 2 Overall structural diagram of the central main pipeline; Figure 5 This utility model Figure 3 A schematic diagram of the overall structure of the central gas injection tube; Figure 6 This utility model Figure 4 A schematic diagram of the overall structure of a peristaltic pump; In the diagram: 1. Generator body; 2. Interface; 21. Outer dust cover; 211. Air inlet; 22. Inner dust cover; 23. Dust scraper; 3. Peristaltic pump; 31. Peristaltic chamber; 32. Motor; 33. Power shaft; 34. Extrusion block; 35. Hose; 4. Main pipeline; 5. Air injection pipe; 51. Connecting pipe; 52. Air injection head; 53. Torsion spring; 54. Barrier ring; 55. Air injection hole. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0015] Please see Figures 1-6 This utility model provides a technical solution: A LabVIEW-based pulsed neutron generator, including The generator body 1 has a number of interfaces 2 on its front side. Each interface 2 includes an outer dust cover 21 and an inner dust cover 22 on the inside of the outer dust cover 21. Dust scrapers 23 are provided at the entrances of the outer dust cover 21 and the inner dust cover 22. When the connector is inserted into the interface 2, the dust on the connector is scraped off by the dust scrapers 23. Main pipe 4 is located inside the generator body 1. The top of the outer dust cover 21 is provided with an air inlet 211. The main pipe 4 is connected to multiple outer dust covers 21 through an air injection pipe 5, and the air injection pipe 5 is connected to the inside of the outer dust cover 21 through the air inlet 211. The peristaltic pump 3 is located inside the generator body 1 and above the peristaltic pump 21. The peristaltic pump 3 can inject external gas into the interior of the outer dust cover 21.

[0016] In this embodiment, please refer to Figure 6 The peristaltic pump 3 includes a peristaltic chamber 31 and a motor 32. A flexible tube 35 is provided on the inner wall of the peristaltic chamber 31. The flexible tube 35 is attached to the inner wall of the peristaltic chamber 31 and one end of the flexible tube 31 passes through the peristaltic chamber 31. A power shaft 33 is provided at the output end of the motor 32. A squeezing block 34 is provided on the outside of the power shaft 33. In this embodiment, the motor 32 provides power to control the rotation of the power shaft 33, so that the squeezing block 34 rotates in the inner cavity of the peristaltic chamber 31. At this time, the squeezing block 34 continuously squeezes the surface of the flexible tube 35, so that the flexible tube 35 is continuously squeezed and deformed, and then quickly returns to its original shape. This causes a negative pressure to be generated at one end of the flexible tube 35 to draw in air, and a positive pressure to be generated at the other end to discharge air. The motor 32 controls the power shaft 33 to adjust the rotation direction, so that the positive and negative pressure generating ends of the flexible tube 35 change, and the gas intake end and the exhaust end change.

[0017] In this embodiment, please refer to Figures 3-6 One end of the hose 35 is connected to the main pipeline 4. The air injection pipe 5 includes a connecting pipe 51, and an air injection head 52 is provided at the bottom of the connecting pipe 51. A barrier ring 54 is provided in the inner cavity of the air injection head 52. The barrier ring 54 can move up and down with the change of pressure in the inner cavity of the air injection head 52. An air injection hole 55 is provided at the outer edge of the bottom end of the air injection head 52. The bottom end of the air injection head 52 is set in the inner cavity of the outer dust cover 21 through the air inlet 211. In this embodiment, when the peristaltic pump 3 is working, it draws in external gas through the hose 35 and injects it into the inner cavity of the main pipeline 4. After the gas enters the inner cavity of the main pipeline 4, it enters the air injection pipe 5 in sequence and is discharged into the outer dust cover 21 through the air injection hole 55, so that the outer dust cover 21 is closed. The dust cover 21 expands when inflated. As the outer dust cover 21 expands, it fits more closely to the surface of the connector, further preventing dust, liquid, and other impurities from entering the interface 2 and avoiding poor contact. At the same time, when the gas enters the air injection pipe 5, it pushes the blocking ring 54 downward under the action of air pressure. As the injected gas increases, the pressure gradually increases, causing the blocking ring 54 to move to the position of the air injection hole 55, which is blocked. At this time, the gas cannot enter the outer dust cover 21, preventing the outer dust cover 21 from continuing to expand and burst. As the peristaltic pump 3 continuously injects gas into the main pipeline 4, the gas continuously enhances the sealing effect of multiple interfaces 2 through multiple air injection pipes 5.

[0018] In this embodiment, please refer to Figure 6 The outer side of the extrusion block 34 is fitted with the inner cavity of the peristaltic chamber 31. An exhaust hole is provided on one side of the generator body 1. One end of the hose 35 is placed in the exhaust hole. In this embodiment, since the hose 35 is attached to the inner cavity of the peristaltic chamber 31, when the extrusion block 34 rotates in the inner cavity of the peristaltic chamber 31, it can generate sufficient extrusion on the surface of the hose 35. Through the exhaust hole, one end of the hose 35 can complete the work of suction and exhaust.

[0019] In this embodiment, please refer to Figure 5 The inner wall of the air injection head 52 is provided with a torsion spring 53. The bottom of the torsion spring 53 is connected to the top of the blocking ring 54. In this embodiment, when the motor 32 controls the power shaft 33 to reverse, the hose 35 draws out the gas in the main pipeline 4. At this time, the air pressure in the air injection head 52 gradually decreases. After the pressure disappears, the torsion spring 53 loses pressure and returns to its original state, thereby driving the blocking ring 54 to return to its original position. The torsion spring 53 is no longer blocked. Under the negative pressure of the hose 35, the gas in the outer dust cover 21 is drawn out through the air injection hole 55. The volume of the outer dust cover 21 becomes smaller. At this time, the connector can be pulled out from the interface 2.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pulsed neutron generator based on LabVIEW, characterized in that: The device includes a generator body (1), and a number of interfaces (2) are provided on the front of the generator body (1). Each interface (2) includes an outer dust cover (21) and an inner dust cover (22) is provided inside the outer dust cover (21). A dust scraper (23) is provided at the entrance of the outer dust cover (21) and the inner dust cover (22). When the connector is inserted into the interface (2), the dust on the connector is scraped off by the dust scraper (23). The main pipeline (4) is located inside the generator body (1). The top of the outer dust cover (21) is provided with an air inlet (211). The main pipeline (4) is connected to multiple outer dust covers (21) through an air injection pipe (5), and the air injection pipe (5) is connected to the inside of the outer dust cover (21) through the air inlet (211). The peristaltic pump (3) is located inside the generator body (1) and above the peristaltic pump (3). The peristaltic pump (3) can inject external gas into the interior of the outer dust cover (21).

2. The pulsed neutron generator based on LabVIEW according to claim 1, characterized in that: The peristaltic pump (3) includes a peristaltic chamber (31) and a motor (32). The inner wall of the peristaltic chamber (31) is provided with a flexible tube (35). The flexible tube (35) is attached to the inner wall of the peristaltic chamber (31) and one end of the flexible tube (35) passes through the peristaltic chamber (31). The output end of the motor (32) is provided with a power shaft (33). The outer side of the power shaft (33) is provided with a squeezing block (34).

3. A LabVIEW-based pulsed neutron generator according to claim 2, characterized in that: One end of the hose (35) is connected to the main pipeline (4). The air injection pipe (5) includes a connecting pipe (51). An air injection head (52) is provided at the bottom of the connecting pipe (51). A barrier ring (54) is provided in the inner cavity of the air injection head (52). The barrier ring (54) can move up and down with the change of pressure in the inner cavity of the air injection head (52). An air injection hole (55) is provided at the outer edge of the bottom end of the air injection head (52). The bottom end of the air injection head (52) is provided in the inner cavity of the outer dust cover (21) through the air inlet (211).

4. A LabVIEW-based pulsed neutron generator according to claim 2, characterized in that: The outer side of the extrusion block (34) is fitted with the inner cavity of the peristaltic chamber (31), and an exhaust hole is provided on one side of the generator body (1), with one end of the hose (35) placed in the exhaust hole.

5. A LabVIEW-based pulsed neutron generator according to claim 3, characterized in that: The inner wall of the gas injection head (52) is provided with a torsion spring (53), and the bottom of the torsion spring (53) is connected to the top of the barrier ring (54).

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