Water wave flow monitor

Abstract

The invention provides a water wave flow monitor which comprises a machine shell, an incident port is located in the bottom of the machine shell, and the monitor comprises a focusing enhancing structure and a dynamic filtering structure.The invention relates to the technical field of oil well exploitation. A high-efficiency light path system is formed, the energy loss of rays in the transmission process is reduced, the focusing precision is improved, and the stability is enhanced, so that the focusing effect of gamma rays is remarkably improved, the detection capability of the monitor is enhanced, and further, low-energy and high-energy gamma rays are effectively removed through the arrangement of a filtering assembly in the dynamic filtering structure, and the detection efficiency is improved. The gamma ray detector has the advantages that medium-energy gamma rays are allowed to pass through, interference of low-energy and high-energy rays on the monitor is avoided, background noise is reduced, the monitor can only detect useful gamma rays, and purity and accuracy of detection data are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil well exploitation, and particularly to a water flow rate monitor. Background Art

[0002] During the process of oil field exploitation, as the natural pressure of the oil reservoir drops, in order to maintain the production capacity of the oil well and the pressure of the oil reservoir, it is usually necessary to drill a water well beside the oil well and supplement the energy of the oil reservoir by injecting water into the water well, so as to achieve sustainable exploitation of the oil field. In this process, the application of the water flow rate monitor is particularly important, which can monitor the water flow dynamics of the injection well in real time to ensure the injection efficiency.

[0003] Although the traditional water flow rate monitor can measure the flow velocity and direction of water, there are still some defects in detection, such as insufficient detection sensitivity and susceptibility to environmental ray interference, which lead to inaccurate measurement data. Summary of the Invention

[0004] The purpose of the present invention is to provide a water flow rate monitor, which can solve the problems of insufficient detection sensitivity and susceptibility to environmental ray interference of the traditional water flow rate monitor, and these defects lead to inaccurate measurement data.

[0005] The present invention provides a water flow rate monitor. The monitor includes a housing. An incident port is provided at the bottom of the housing, including a focusing enhancement structure and a dynamic filtering structure. The focusing enhancement structure is fixedly arranged at the incident port at the bottom of the housing. The focusing enhancement structure is used for focusing gamma rays. The focusing enhancement structure includes a focusing mirror, a plurality of connecting rods, an annular bracket and a concave mirror. The focusing mirror is fixedly arranged at the incident port at the bottom of the housing. One ends of the plurality of connecting rods are fixedly arranged at the bottom of the housing. The annular bracket is fixedly arranged at the other ends of the plurality of connecting rods. The concave mirror is fixedly arranged in the annular bracket. The incident surface of the concave mirror is the convex side, that is, the side far from the focusing mirror. The reflecting surface of the concave mirror is the concave side, that is, the side close to the focusing mirror. The concave mirror is located below the focusing mirror, and the optical central axes of the focusing mirror and the concave mirror are aligned with each other to form a coordinated optical path. A dynamic filtering structure for filtering redundant rays is also fixedly arranged at the outer bottom of the housing. The dynamic filtering structure is located between the focusing mirror and the concave mirror. The dynamic filtering structure includes a filtering component and a driving component.

[0006] Preferably, the filtering component includes a filter frame, a low-energy gamma-ray filtering layer, and a high-energy gamma-ray filtering layer. The filter frame is a cylindrical structure with open left and right sides, and the filter frame is fixedly arranged at the outer bottom of the casing. The focusing mirror is located inside the filter frame. Two circular chutes are provided on the inner wall of the filter frame. The low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer are respectively slidably connected to the two circular chutes. The low-energy gamma-ray filtering layer is close to the concave mirror, and the high-energy gamma-ray filtering layer is close to the focusing mirror. The driving component is arranged on the filter frame and is connected between the low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer. The low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer can rotate under the drive of the driving component.

[0007] Preferably, the driving component includes a rotating shaft, a motor, a driving shaft, a first bevel gear, and a second bevel gear. The rotating shaft is fixedly arranged between the low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer. The motor is fixedly arranged at the outer rear side of the filter frame. The driving shaft is rotatably connected to the rear side of the filter frame, and one end of the driving shaft is fixedly connected to the driving end of the motor. The first bevel gear is fixedly arranged at the other end of the driving shaft. The second bevel gear is fixedly arranged on the rotating shaft and is located in front of the first bevel gear. The second bevel gear meshes with the first bevel gear.

[0008] Preferably, the dynamic filtering structure further includes a heat dissipation component for dissipating heat from the low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer.

[0009] Preferably, the heat dissipation component includes a transmission shaft, a third bevel gear, and a fan blade. The transmission shaft is rotatably connected to the front side of the filter frame. The third bevel gear is fixedly arranged at one end of the transmission shaft and is located in front of the second bevel gear. The third bevel gear meshes with the second bevel gear. The fan blade is fixedly arranged at the other end of the transmission shaft. A ventilation opening is provided on the front side of the filter frame, and the ventilation opening corresponds to the position of the fan blade.

[0010] Preferably, the heat dissipation component further includes multiple groups of heat dissipation openings. The multiple groups of heat dissipation openings are respectively evenly provided on the top and bottom of the filter frame, and the heat dissipation openings are respectively inclined towards the low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer.

[0011] Preferably, the low-energy gamma-ray filtering layer is made of a metal material such as aluminum or beryllium, and the high-energy gamma-ray filtering layer is made of a metal material such as lead or tungsten. The filtering surfaces of the low-energy gamma-ray filtering layer and the high-energy gamma-ray filtering layer are both wavy.

[0012] Preferably, both the driving shaft and the filter frame and the transmission shaft and the filter frame are rotatably connected through sealed bearings.

[0013] Preferably, a protective structure for protecting the focusing enhancement structure is further provided on the outer wall of the casing.

[0014] Preferably, the protective structure includes two sliders, a protective shell, two electric telescopic rods and two connecting plates. Two slideways are provided on the outer wall of the casing, and the two sliders are respectively slidably connected to the two slideways. The inner wall of the protective shell is fixedly connected to the two sliders, and both sides of the protective shell are open. The two electric telescopic rods are fixedly arranged on the outer wall of the casing, the two connecting plates are fixedly arranged at the driving ends of the two electric telescopic rods, and the two connecting plates are fixedly arranged on the outer wall of the protective shell.

[0015] The present invention provides a water ripple flow monitor by improvement. Compared with the prior art, it has the following improvements and advantages: Through the preliminary convergence of the concave mirror in the focusing enhancement structure and the precise focusing of the focusing lens, the present invention forms an efficient optical path system, reduces the energy loss of the rays during transmission, improves the focusing accuracy, and enhances the stability, thereby significantly improving the focusing effect of gamma rays and enhancing the detection ability of the monitor. Further, through the setting of the filtering components in the dynamic filtering structure, the present invention effectively removes low-energy and high-energy gamma rays, allows medium-energy gamma rays to pass through, avoids the interference of low-energy and high-energy rays on the monitor, reduces the background noise, enables the monitor to only detect useful gamma rays, and improves the purity and accuracy of the detection data. Through the design of the driving components in the dynamic filtering structure, the low-energy gamma ray filtering layer and the high-energy gamma ray filtering layer can rotate, ensuring that every part of the filtering layer can be fully utilized, avoiding resource waste caused by uneven filtering, reducing the aging of the filtering layer, and prolonging its service life. At the same time, the heat dissipation component and the driving component adopt the same power source to ensure that the heat generated during the filtering process can be discharged in time through the heat dissipation component, preventing the performance degradation of the low-energy gamma ray filtering layer and the high-energy gamma ray filtering layer due to the heat accumulation during the filtering process, thereby ensuring the stability and reliability of the filtering components during long-term operation. Through the combination of the focusing enhancement structure and the dynamic filtering structure, a significant improvement in the detection accuracy is achieved. Finally, through the setting of the protective structure, the monitor can protect the focusing enhancement structure during the lowering process, improving the safety of the device. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Isometric structural schematic diagram of the water pattern flow monitor of the present invention in the use state;

[0018] Figure 2 Isometric structural schematic diagram of the water pattern flow monitor of the present invention in the non-use state;

[0019] Figure 3 Isometric structural schematic diagram of the housing, focusing enhancement structure and protection structure of the water pattern flow monitor of the present invention;

[0020] Figure 4 Isometric structural schematic diagram of the filter rack of the water pattern flow monitor of the present invention;

[0021] Figure 5 Isometric structural schematic diagram of the low-energy gamma ray filter layer, high-energy gamma ray filter layer, rotating shaft and second bevel gear of the water pattern flow monitor of the present invention;

[0022] Figure 6 Top view structural schematic diagram of the dynamic filtering structure of the water pattern flow monitor of the present invention;

[0023] Figure 7 Front view structural schematic diagram of the dynamic filtering structure of the water pattern flow monitor of the present invention;

[0024] Figure 8 Is Figure 7 Enlarged structural schematic diagram of position A;

[0025] Figure 9 Isometric structural schematic diagram of the protection structure of the water pattern flow monitor of the present invention.

[0026] Explanation of reference numerals:

[0027] 1. Housing; 2. Focusing enhancement structure; 21. Focusing mirror; 22. Connecting rod; 23. Ring bracket; 24. Concave mirror; 3. Dynamic filtering structure; 31. Filter assembly; 31-1. Filter rack; 31-2. Low-energy gamma ray filter layer; 31-3. High-energy gamma ray filter layer; 32. Driving assembly; 32-1. Rotating shaft; 32-2. Motor; 32-3. Driving shaft; 32-4. First bevel gear; 32-5. Second bevel gear; 33. Heat dissipation assembly; 33-1. Transmission shaft; 33-2. Third bevel gear; 33-3. Fan blade; 33-4. Heat dissipation port; 4. Protection structure; 41. Slide block; 42. Protection shell; 43. Electric telescopic rod; 44. Connecting plate; Detailed implementation manners

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It 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 thus cannot be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Please refer to Figures 1-3, the present invention provides a technical solution: a water pattern flow monitor. The monitor includes a housing 1. The monitor is a sodium iodide detector in a well logging instrument in the prior art. The sodium iodide detector is used to detect gamma rays underground, so as to analyze the water flow dynamics. The sodium iodide detector is an existing device in the art and will not be introduced in detail here. An incident port is provided at the bottom of the housing. The incident port is the position where gamma rays enter. The monitor includes a focusing enhancement structure 2 and a dynamic filtering structure 3. The focusing enhancement structure 2 is fixedly arranged at the incident port at the bottom of the housing 1. The focusing enhancement structure 2 is used to focus gamma rays, reduce the energy loss of the rays during transmission, improve the focusing accuracy, and enhance the stability, so as to improve the focusing effect of gamma rays, and further improve the accuracy and stability of the monitor during the monitoring process. The focusing enhancement structure 2 includes a focusing mirror 21, a plurality of connecting rods 22, an annular bracket 23, and a concave mirror 24. The focusing mirror 21 is fixedly arranged at the incident port at the bottom of the housing 1. One ends of the plurality of connecting rods 22 are fixedly arranged at the bottom of the housing 1. The annular bracket 23 is fixedly arranged at the other ends of the plurality of connecting rods 22. The connecting rods 22 are used to support the annular bracket 23 and the concave mirror 24. The concave mirror 24 is fixedly arranged inside the annular bracket 23. The incident surface of the concave mirror 24 is the convex side, that is, the side away from the focusing mirror 21. The reflecting surface of the concave mirror 24 is the concave side, that is, the side close to the focusing mirror 21, which helps to reflect and converge gamma rays to the focusing mirror 21. The concave mirror 24 is located below the focusing mirror 21, and the optical central axes of the focusing mirror 21 and the concave mirror 24 are aligned with each other to form a coordinated optical path, ensuring that after gamma rays are reflected by the concave mirror 24 and focused by the focusing mirror 21, they can be accurately focused on the sodium iodide crystal, thereby improving the detection efficiency and accuracy of the monitor. A dynamic filtering structure 3 for filtering redundant rays is also fixedly arranged at the outer bottom of the housing 1. The dynamic filtering structure 3 is located between the focusing mirror 21 and the concave mirror 24. The dynamic filtering structure 3 includes a filtering component 31 and a driving component 32. The filtering component 31 can filter out unnecessary low-energy and high-energy gamma rays and only allow medium-energy gamma rays to pass through, so as to reduce background noise and improve the purity and accuracy of detection data. The driving component 32 can drive the filtering component 31 to rotate.

[0032] Please refer to Figures 4-6, specifically, the filtering component 31 includes a filter rack 31-1, a low-energy gamma-ray filtering layer 31-2, and a high-energy gamma-ray filtering layer 31-3. The filter rack 31-1 is a cylindrical structure with open left and right sides, and the filter rack 31-1 is fixedly arranged at the outer bottom of the casing 1. The focusing mirror 21 is located inside the filter rack 31-1. The filter rack 31-1 is used to support the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3. Two circular chutes are provided on the inner wall of the filter rack 31-1. The low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 are respectively slidably connected to the two circular chutes. The low-energy gamma-ray filtering layer 31-2 is close to the concave mirror 24, and the high-energy gamma-ray filtering layer 31-3 is close to the focusing mirror 21. After the rays pass through the concave mirror 24, they will first pass through the low-energy gamma-ray filtering layer 31-2. The low-energy gamma-ray filtering layer 31-2 can absorb low-energy gamma rays and allow medium-energy gamma rays to pass through. After passing through the low-energy gamma-ray filtering layer 31-2, the remaining medium-energy and high-energy gamma rays will continue to pass through the high-energy gamma-ray filtering layer 31-3. The high-energy gamma-ray filtering layer 31-3 can absorb high-energy gamma rays and allow medium-energy gamma rays to pass through. Finally, the medium-energy gamma rays will pass through the focusing of the focusing mirror 21 and contact the sodium iodide crystal of the sodium iodide detector, and the sodium iodide detector will analyze it. The driving component 32 is arranged on the filter rack 31-1, and the driving component 32 is connected to the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3. The low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 can rotate under the drive of the driving component 32. The driving component 32 enables the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 to rotate, ensuring that every part of the filtering layer can be fully utilized, avoiding resource waste caused by uneven filtering, reducing the aging of the filtering layer, and extending its service life.

[0033] Please refer to Figures 6-7, specifically, the driving component 32 includes a rotating shaft 32-1, a motor 32-2, a driving shaft 32-3, a first bevel gear 32-4, and a second bevel gear 32-5. The rotating shaft 32-1 is fixedly arranged between the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3. The rotating shaft 32-1 serves to connect and support the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3. The motor 32-2 is fixedly arranged at the outer rear side of the filtering frame 31-1 to provide power for the driving component 32. The driving shaft 32-3 is rotatably connected to the rear side of the filtering frame 31-1, and one end of the driving shaft 32-3 is fixedly connected to the driving end of the motor 32-2 for transmitting the power of the motor 32-2. The first bevel gear 32-4 is fixedly arranged at the other end of the driving shaft 32-3. The second bevel gear 32-5 is fixedly arranged on the rotating shaft 32-1, and the second bevel gear 32-5 is located in front of the first bevel gear 32-4. The second bevel gear 32-5 meshes with the first bevel gear 32-4. The first bevel gear 32-4 and the second bevel gear 32-5 are used to transmit power and drive the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 to rotate.

[0034] Please refer to Figures 6-7 , specifically, the dynamic filtering structure 3 further includes a heat dissipation component 33 for dissipating heat from the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3. The heat dissipation component 33 is used to timely discharge the heat generated by the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 during filtering to prevent heat accumulation.

[0035] Please refer to Figures 6-7 , specifically, the heat dissipation component 33 includes a transmission shaft 33-1, a third bevel gear 33-2, and a fan blade 33-3. The transmission shaft 33-1 is rotatably connected to the front side of the filtering frame 31-1. The third bevel gear 33-2 is fixedly arranged at one end of the transmission shaft 33-1, and the third bevel gear 33-2 is located in front of the second bevel gear 32-5. The third bevel gear 33-2 meshes with the second bevel gear 32-5. The fan blade 33-3 is fixedly arranged at the other end of the transmission shaft 33-1. A ventilation opening is provided on the front side of the filtering frame 31-1, and the ventilation opening corresponds to the position of the fan blade 33-3. The transmission shaft 33-1 will drive the fan blade 33-3 to rotate synchronously under the transmission of the third bevel gear 33-2 and the second bevel gear 32-5, so as to discharge the heat generated by the low-energy gamma-ray filtering layer 31-2 and the high-energy gamma-ray filtering layer 31-3 through the ventilation opening.

[0036] Please refer to Figures 5-6, specifically, the heat dissipation component 33 further includes multiple groups of heat dissipation openings 33-4, which are evenly arranged on the top and bottom of the filter rack 31-1 respectively, and the heat dissipation openings 33-4 are inclined towards the low-energy gamma-ray filter layer 31-2 and the high-energy gamma-ray filter layer 31-3 respectively. When the fan blades 33-3 rotate, air will be introduced into the filter rack 31-1 through the heat dissipation openings 33-4. The heat dissipation openings 33-4 are inclined towards the low-energy gamma-ray filter layer 31-2 and the high-energy gamma-ray filter layer 31-3. This inclined arrangement helps the air entering through the heat dissipation openings 33-4 to flow along the low-energy gamma-ray filter layer 31-2 and the high-energy gamma-ray filter layer 31-3, thereby taking away the heat. The inclined setting of the heat dissipation openings 33-4 enables the air to contact the filter layer more effectively, thus improving the heat dissipation effect. Moreover, the combination of the heat dissipation openings 33-4 and the rotation of the filter layer further enhances the heat dissipation effect. During the rotation of the filter layer, the air entering through the heat dissipation openings 33-4 will contact different surfaces of the filter layer, ensuring that the heat on the filter layer can be completely taken away. This design not only improves the heat dissipation efficiency but also ensures the stability and reliability of the filter layer during long-term operation. The combination of multiple groups of heat dissipation openings 33-4 of the heat dissipation component 33 and the drive component 32 realizes the dynamic heat dissipation of the filter layer.

[0037] Please refer to Figure 5 , specifically, the low-energy gamma-ray filter layer 31-2 is made of metal materials such as aluminum or beryllium, and the high-energy gamma-ray filter layer 31-3 is made of metal materials such as lead or tungsten. The filtering surfaces of both the low-energy gamma-ray filter layer 31-2 and the high-energy gamma-ray filter layer 31-3 are wavy. The wavy low-energy gamma-ray filter layer 31-2 and high-energy gamma-ray filter layer 31-3 can increase the area of the filtering surface, thereby providing more filtering paths and enabling more gamma rays to be absorbed and filtered.

[0038] Please refer to Figure 5 , specifically, both the drive shaft 32-3 and the filter rack 31-1 and the drive shaft 33-1 and the filter rack 31-1 are rotationally connected through sealed bearings. The connection method of the sealed bearings greatly increases the stability of the drive shaft 32-3 and the drive shaft 33-1 during rotation.

[0039] Please refer to Figures 1-2 and Figure 9 , specifically, a protective structure 4 for protecting the focusing enhancement structure 2 is also provided on the outer wall of the housing 1. The protective structure 4 can isolate the focusing enhancement structure 2 from the external environment and prevent possible risk factors from damaging the focusing enhancement structure 2.

[0040] Please refer to Figures 1-2 and Figure 9, specifically, the protection structure 4 includes two sliders 41, a protective shell 42, two electric telescopic rods 43, and two connecting plates 44. Two sliding grooves are provided on the outer wall of the casing 1, and the two sliders 41 are respectively slidably connected to the two sliding grooves. The inner wall of the protective shell 42 is fixedly connected to the two sliders 41, and both sides of the protective shell 42 are open. The two electric telescopic rods 43 are fixedly arranged on the outer wall of the casing 1, the two connecting plates 44 are fixedly arranged at the driving ends of the two electric telescopic rods 43, and the two connecting plates 44 are fixedly arranged on the outer wall of the protective shell 42. The electric telescopic rod 43 can drive the protective shell 42 to move, so as to realize the dynamic protection of the focusing enhancement structure 2.

[0041] Working principle:

[0042] The working principle of the water ripple flow monitor is based on the detection of gamma rays in the well by the sodium iodide detector. First, the staff lower the monitor into the well through the steel wire rope. During the lowering process, the protective shell 42 of the protection mechanism is always on the outside of the focusing enhancement structure 2 to protect the focusing enhancement structure 2 and prevent it from being damaged by impact during the lowering process. When the monitor is lowered to the specified position by the steel wire rope, the staff turn on the electric telescopic rod 43, and the driving end of the electric telescopic rod 43 will contract, driving the protective shell 42 to move upward, so that the protective shell 42 is separated from the focusing enhancement structure. At this time, the monitor can be controlled to perform the monitoring work.

[0043] During monitoring, the gamma rays in the well first contact the incident surface of the concave mirror 24, that is, the convex side, and are reflected to the reflecting surface of the concave mirror 24. The reflected gamma rays continue to propagate and contact the dynamic filtering structure 3 located between the concave mirror 24 and the focusing mirror 21. The dynamic filtering structure 3 can filter out unnecessary low-energy gamma rays and high-energy gamma rays and allow qualified medium-energy gamma rays to pass through. After passing through the dynamic filtering structure 3, the medium-energy gamma rays continue to propagate and contact the focusing mirror 21 in the incident port. The focusing mirror 21 can focus the rays to a specific position, usually on the sodium iodide crystal. The role of the focusing mirror 21 is to further converge the filtered gamma rays to ensure that they can accurately reach the sodium iodide crystal, thereby improving the detection efficiency and accuracy. Finally, the focused gamma rays contact the sodium iodide crystal, and the sodium iodide detector analyzes it, so as to realize the accurate detection of gamma rays in the well.

[0044] When the filter component 31 in the dynamic filtering structure 3 performs filtering, after passing through the concave mirror 24, gamma rays will first pass through the low-energy gamma ray filtering layer 31-2. The low-energy gamma ray filtering layer 31-2 can absorb low-energy gamma rays and allow medium-energy gamma rays to pass through. After passing through the low-energy gamma ray filtering layer 31-2, the remaining medium-energy and high-energy gamma rays will continue to pass through the high-energy gamma ray filtering layer 31-3. The high-energy gamma ray filtering layer 31-3 can absorb high-energy gamma rays and allow medium-energy gamma rays to pass through.

[0045] During the filtering process, the motor 32-2 of the driving component 32 in the dynamic filtering structure 3 will drive the driving shaft 32-3 to rotate. The driving shaft 32-3 will drive the first bevel gear 32-4 to rotate. The first bevel gear 32-4 will drive the second bevel gear 32-5 engaged with it to rotate. The second bevel gear 32-5 will drive the rotating shaft 32-1, the low-energy gamma ray filtering layer 31-2, and the high-energy gamma ray filtering layer 31-3 to rotate, ensuring that every part of the filtering layer can fully filter and absorb unnecessary gamma rays, avoiding resource waste caused by uneven filtering, reducing the aging of the filtering layer, and extending its service life.

[0046] When the driving component 32 rotates, the heat dissipation component 33 shares a driving source with the driving component 32, so the heat dissipation component 33 will be turned on synchronously. Due to the rotation of the second bevel gear 32-5 in the driving component 32, the third bevel gear 33-2 engaged with it will also rotate synchronously. The third bevel gear 33-2 will drive the transmission shaft 33-1 and the fan blade 33-3 to rotate. When the fan blade 33-3 rotates, it will introduce air into the filter frame 31-1 through the heat dissipation port 33-4. The heat dissipation port 33-4 is inclined towards the low-energy gamma ray filtering layer 31-2 and the high-energy gamma ray filtering layer 31-3. This inclined opening method helps the air entering through the heat dissipation port 33-4 to flow along the low-energy gamma ray filtering layer 31-2 and the high-energy gamma ray filtering layer 31-3, thereby taking away the heat. The inclined setting of the heat dissipation port 33-4 enables the air to more effectively contact the filtering layer, thereby improving the heat dissipation effect. And the combination of the heat dissipation port 33-4 and the rotation of the filtering layer further enhances the heat dissipation effect. During the rotation of the low-energy gamma ray filtering layer 31-2 and the high-energy gamma ray filtering layer 31-3, the air entering through the heat dissipation port 33-4 will contact different surfaces of the low-energy gamma ray filtering layer 31-2 and the high-energy gamma ray filtering layer 31-3, ensuring that the heat on the low-energy gamma ray filtering layer 31-2 and the high-energy gamma ray filtering layer 31-3 can be comprehensively taken away. This design not only improves the heat dissipation efficiency but also ensures the stability and reliability of the filtering layer during long-term operation. The combination of multiple heat dissipation ports 33-4 of the heat dissipation component 33 and the driving component 32 realizes the dynamic heat dissipation of the filtering layer.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water ripple flow monitor, comprising a housing (1), wherein an inlet is provided at the bottom of the housing (1), characterized in that: The invention comprises a focusing enhancement structure (2) and a dynamic filtering structure (3), wherein the focusing enhancement structure (2) is fixedly arranged at an entrance at the bottom of a housing (1), and the focusing enhancement structure (2) is used to focus gamma rays. The focusing enhancement structure (2) comprises a focusing mirror (21), a plurality of connecting rods (22), an annular bracket (23), and a concave reflecting mirror (24), wherein the focusing mirror (21) is fixedly arranged at the entrance at the bottom of the housing (1), one end of the plurality of connecting rods (22) is fixedly arranged at the bottom of the housing (1), the annular bracket (23) is fixedly arranged at the other end of the plurality of connecting rods (22), and the concave reflecting mirror (24) is fixedly arranged in the annular bracket (23). The incident surface of the concave reflector (24) is a convex side, that is, a side away from the focusing mirror (21), and the reflecting surface of the concave reflector (24) is a concave side, that is, a side close to the focusing mirror (21). The concave reflector (24) is located below the focusing mirror (21), and the optical center axes of the focusing mirror (21) and the concave reflector (24) are aligned with each other to form a coordinated optical path. A dynamic filtering structure (3) for filtering redundant rays is also fixedly arranged on the outer bottom of the housing (1). The dynamic filtering structure (3) is located between the focusing mirror (21) and the concave reflector (24), and the dynamic filtering structure (3) comprises a filtering component (31) and a driving component (32).

2. The water ripple flow monitor according to claim 1, characterized in that: The filter assembly (31) comprises a filter frame (31-1), a low-energy gamma ray filter layer (31-2) and a high-energy gamma ray filter layer (31-3); the filter frame (31-1) is a cylindrical structure with left and right sides open, and the filter frame (31-1) is fixedly arranged on the outer bottom of the housing (1); the focusing lens (21) is located in the filter frame (31-1); the inner wall of the filter frame (31-1) is provided with two circular sliding grooves; the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3) are respectively connected to the two circular sliding grooves. The low-energy gamma ray filter layer (31-2) is close to the concave reflector (24), and the high-energy gamma ray filter layer (31-3) is close to the focusing mirror (21); the driving component (32) is arranged on the filter frame (31-1), and the driving component (32) is connected to the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3); the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3) can rotate under the drive of the driving component (32).

3. The water flow monitor according to claim 2, characterized in that: The driving assembly (32) comprises a rotating shaft (32-1), a motor (32-2), a driving shaft (32-3), a first bevel gear (32-4) and a second bevel gear (32-5); the rotating shaft (32-1) is fixedly arranged between the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3); the motor (32-2) is fixedly arranged on the outer rear side of the filter frame (31-1); the driving shaft (32-3) and the filter frame (31-1) are connected to each other. The first bevel gear (32-4) is fixedly arranged on the other end of the driving shaft (32-3); the second bevel gear (32-5) is fixedly arranged on the rotating shaft (32-1); the second bevel gear (32-5) is located on the front side of the first bevel gear (32-4); and the second bevel gear (32-5) is meshed with the first bevel gear (32-4).

4. The water ripple flow monitor according to claim 3, characterized in that: The dynamic filtering structure (3) also includes a heat dissipation component (33) for dissipating heat from the low-energy gamma ray filtering layer (31-2) and the high-energy gamma ray filtering layer (31-3).

5. The water ripple flow monitor according to claim 4, characterized in that: The heat dissipation component (33) comprises a transmission shaft (33-1), a third bevel gear (33-2) and a fan blade (33-3); the transmission shaft (33-1) is rotatably connected to the front side of the filter frame (31-1); the third bevel gear (33-2) is fixedly arranged at one end of the transmission shaft (33-1), and the third bevel gear (33-2) is located at the front side of the second bevel gear (32-5); the third bevel gear (33-2) is meshed with the second bevel gear (32-5); the fan blade (33-3) is fixedly arranged at the other end of the transmission shaft (33-1); a vent is provided on the front side of the filter frame (31-1), and the vent corresponds to the position of the fan blade (33-3).

6. The water pattern flow monitor according to claim 5, characterized in that: The heat dissipation component (33) further comprises a plurality of groups of heat dissipation openings (33-4), wherein the plurality of groups of heat dissipation openings (33-4) are respectively and evenly arranged at the top and the bottom of the filter frame (31-1), and the heat dissipation openings (33-4) are respectively arranged obliquely toward the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3).

7. The water pattern flow monitor according to claim 6, characterized in that: The low-energy gamma ray filter layer (31-2) is made of metal materials such as aluminum or beryllium, and the high-energy gamma ray filter layer (31-3) is made of metal materials such as lead or tungsten. The filtering surfaces of the low-energy gamma ray filter layer (31-2) and the high-energy gamma ray filter layer (31-3) are both wavy.

8. The water pattern flow monitor according to claim 7, characterized in that: The driving shaft (32-3) and the filter frame (31-1), as well as the transmission shaft (33-1) and the filter frame (31-1), are rotatably connected via sealed bearings.

9. The water pattern flow monitor according to claim 8, characterized in that: A protective structure (4) for protecting the focusing enhancement structure (2) is also provided on the outer wall of the housing (1).

10. The water ripple flow monitor according to claim 9, characterized in that: The protective structure (4) comprises two sliders (41), a protective shell (42), two electric telescopic rods (43) and two connecting plates (44); the outer wall of the housing (1) is provided with two slideways; the two sliders (41) are respectively slidably connected to the two slideways; the inner wall of the protective shell (42) is fixedly connected to the two sliders (41); both sides of the protective shell (42) are open; the two electric telescopic rods (43) are fixedly arranged on the outer wall of the housing (1); the two connecting plates (44) are fixedly arranged on the driving ends of the two electric telescopic rods (43); and the two connecting plates (44) are fixedly arranged on the outer wall of the protective shell (42).

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