Photoelectric sensor for measuring methane distribution in water
By introducing a probe depth change device into the photoelectric sensor, the problem that traditional photoelectric probes cannot flexibly change the measurement depth is solved, and more accurate and reliable measurement of methane distribution is achieved, reducing labor and time costs, and improving operational safety.
Patent Information
- Application Number
- CN202420852948.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-23
AI Technical Summary
When measuring methane distribution in water, traditional photoelectric probes cannot flexibly change the measurement depth, resulting in inaccurate methane distribution values, and long-term measurements in water bodies are easily affected by environmental factors, and manual adjustments by users increase labor and time costs and safety risks.
A photoelectric sensor is designed, equipped with a probe depth change device, which includes a lifting fixing plug rod, a lifting screw, a thickened fixing ring, a lifting screw hole, an integrated plate and a lifting motor. Through an automatic or semi-automatic control system, the user can remotely adjust the depth of the photoelectric probe.
It realizes flexible measurement of photoelectric probes at different depths, provides more comprehensive methane concentration distribution data, reduces the interference of environmental factors on measurement results, improves data accuracy and reliability, and reduces labor and time costs, avoids potential safety risks.
Smart Images
Figure CN222689629U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to photoelectric sensors, and in particular relates to a photoelectric sensor for measuring methane distribution in water. Background Art
[0002] Photoelectric sensors that measure the distribution of methane in water are usually specially designed optical sensors that detect the concentration distribution of dissolved methane gas in water. These sensors use optical principles to determine the concentration of methane molecules in water by measuring the interaction between methane molecules and light of a specific wavelength. Photoelectric sensors usually include components such as light sources, optical transmission paths, photodetectors, and signal processing circuits. When light passes through a body of water, the methane molecules in it absorb light of a specific wavelength, which causes a change in light intensity. The sensor infers the concentration of methane in the water by measuring the change in light intensity after the light passes through the water.
[0003] However, when using photoelectric sensors to measure the distribution of methane in natural waters, the photoelectric probe needs to be placed in the water body. The probe in the water body measures the change in light intensity after the light passes through the water body, thereby inferring the concentration of methane in the water. However, this can only measure the methane value in a single water layer. If the measurement depth of the photoelectric probe in the water is not flexibly changed, the methane distribution value will be inaccurate. In addition, the photoelectric probe is inconvenient to measure the depth in the water body for a long time and is easily affected by environmental factors, which will also cause the measured methane distribution data to be inaccurate. When the measurement depth of the photoelectric probe needs to be changed, the user is required to manually adjust it, which not only wastes manpower and time, but also increases the risk of drowning for users. Utility Model Content
[0004] The purpose of the utility model is to provide a photoelectric sensor for measuring the distribution of methane in water, so as to solve the problem that the traditional photoelectric probe proposed in the above background technology can only measure the methane value in a single water layer, if the measuring depth of the photoelectric probe in the water is not flexibly changed, the methane distribution value will be inaccurate, and the photoelectric probe is inconvenient to measure the depth in the water body for a long time and is easily affected by environmental factors, which will also cause the measured methane distribution data to be inaccurate.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photoelectric sensor for measuring the distribution of methane in water, comprising a photoelectric sensor processing host and a sensor connector arranged at the right end of the photoelectric sensor processing host, the sensor connector is connected with a connecting wire, the left end of the connecting wire is connected with a photoelectric probe, both ends of the connecting wire are provided with conductive plugs, and the two conductive plugs are fixedly connected to the sensor connector and the photoelectric probe respectively, and a probe depth changing device is arranged outside the photoelectric probe;
[0006] The probe depth changing device includes a lifting and fixing rod, a lifting screw, a thickened fixing ring, a lifting screw hole, an integrated board and a lifting motor. A lifting and fixing rod is arranged at the bottom left side of the center of the integrated board, a thickened fixing ring is fixed to the outside of the photoelectric probe, and lifting guide holes and lifting screw holes are respectively arranged inside the left and right ends of the thickened fixing ring. The bottom end of the lifting and fixing rod passes through the lifting guide hole, and a lifting motor is arranged at the top of the right end of the integrated board. The bottom end of the output shaft of the lifting motor is connected to the lifting screw, and the top end of the lifting screw passes through the lifting screw hole.
[0007] Preferably, the lifting motor can drive the lifting screw to rotate clockwise or counterclockwise via the output shaft. When the lifting screw rotates clockwise or counterclockwise, the lifting screw hole can be driven to move up and down via the pushing action of the thread, and the lifting screw hole drives the thickened fixing ring to move up and down, and the lifting guide hole can move up and down outside the lifting fixing rod.
[0008] Preferably, the probe depth changing device also includes a supporting connecting rod, a fixed bearing and a wire hole, a fixed sleeve is provided at the left end of the supporting connecting rod, and the fixed sleeve is fixed to the lower outside of the center of the lifting fixed plug rod, and a fixed bearing is provided at the right end of the supporting connecting rod, and the fixed bearing is sleeved on the outside of the bottom end of the lifting screw.
[0009] Preferably, a wire hole is provided inside the center of the integrated board, the connecting wire passes through the wire hole, and the connecting wire can move back and forth in the wire hole, and the length of the lifting and fixing rod is greater than the length of the lifting screw.
[0010] Preferably, a data display screen is arranged on the upper side of the front center of the photoelectric sensor processing host, the data display screen is a high-definition touch screen, and control buttons are arranged on the lower side of the data display screen. The photoelectric sensor processing host can be controlled by the touch-screen data display screen and the control buttons at the same time.
[0011] Preferably, an alarm flash light is also provided inside the front end of the photoelectric sensor processing host, and the alarm flash light is close to the bottom of the photoelectric sensor processing host, and alarm speakers are provided on both sides of the alarm flash light.
[0012] Preferably, the upper and lower ends of the back of the photoelectric sensor processing host are provided with mounting blocks, screws can be inserted into the mounting blocks, and the mounting blocks and the photoelectric sensor processing host are fixed to the building wall by screws.
[0013] Compared with the prior art, the utility model provides a photoelectric sensor for measuring the distribution of methane in water, which has the following beneficial effects:
[0014] The utility model adds a novel probe depth changing device to the photoelectric probe of the photoelectric sensor for measuring the distribution of methane in water, and the photoelectric probe is installed in the measured water body through the probe depth changing device. When the photoelectric probe contacts the water body and measures the distribution of methane in the water for one cycle or multiple cycles, the probe depth changing device can flexibly change the measurement depth of the photoelectric probe in the water body after control, so that the measurement depth can be flexibly operated according to different water body conditions and research needs, which enables the sensor to measure at different depths, thereby providing more comprehensive methane concentration distribution data. The probe depth changing device enables the photoelectric probe to work stably within a specific depth range, thereby reducing the interference of environmental factors on the measurement results, so that more accurate and reliable data can be obtained, especially in a complex and dynamically changing water environment, and the probe depth changing device is usually equipped with an automatic or semi-automatic control system, and the user can adjust the depth of the probe through remote control without the need for manual presence, which greatly saves manpower and time costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a schematic diagram of the three-dimensional structure of a photoelectric sensor for measuring the distribution of methane in water.
[0016] Figure 2 It is a three-dimensional structural diagram of the photoelectric sensor processing host of the utility model.
[0017] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the probe depth changing device of the utility model.
[0018] Figure 4 It is a partial three-dimensional structural schematic diagram of the probe depth changing device of the utility model.
[0019] In the figure: 1. Photoelectric sensor processing host; 2. Data display screen; 3. Sensor connector; 4. Photoelectric probe; 5. Connecting wires; 6. Probe depth changing device; 7. Mounting fixing block; 8. Control button; 9. Alarm flash light; 10. Alarm speaker; 11. Lifting and fixing rod; 12. Support connecting rod; 13. Fixed bearing; 14. Lifting screw; 15. Thickened fixing ring; 16. Lifting screw hole; 17. Integrated board; 18. Wire hole; 19. Lifting motor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The utility model provides Figure 1-4 A photoelectric sensor for measuring the distribution of methane in water is shown, comprising a photoelectric sensor processing host 1 and a sensor connector 3 arranged at the right end of the photoelectric sensor processing host 1, a connecting wire 5 is connected to the sensor connector 3, a photoelectric probe 4 is connected to the left end of the connecting wire 5, conductive plugs are arranged at both ends of the connecting wire 5, and the two conductive plugs are fixedly connected to the sensor connector 3 and the photoelectric probe 4 respectively, a data display screen 2 is arranged on the upper side of the front center of the photoelectric sensor processing host 1, the data display screen 2 is a high-definition touch screen, and a control button 8 is arranged on the lower side of the data display screen 2, the photoelectric sensor processing host 1 can be controlled by the touch-type data display screen 2 and the control button 8 at the same time, an alarm flash light 9 is also arranged inside the front end of the photoelectric sensor processing host 1, and the alarm flash light 9 is close to the bottom of the photoelectric sensor processing host 1, and alarm speakers are arranged on the left and right sides of the alarm flash light 9. Device 10, the upper and lower ends of the back of the photoelectric sensor processing host 1 are provided with mounting blocks 7, screws can be inserted in the mounting blocks 7 and the mounting blocks 7 and the photoelectric sensor processing host 1 are fixed on the wall of the building by screws. When using the photoelectric sensor for measuring the distribution of methane in water, it is first necessary to determine whether the photoelectric sensor measures the methane distribution data in the water at zero time or measures the methane distribution in the water periodically and for a long time. If it is necessary to measure the methane distribution in the water periodically and for a long time, the photoelectric sensor processing host 1 needs to be installed in a fixed position. At this time, the photoelectric sensor processing host 1 can be installed on the wall of the building by screws and the mounting blocks 7, and then the photoelectric sensor processing host 1 needs to be connected to the power supply, and then the photoelectric probe 4 needs to be connected to the photoelectric sensor processing host 1 by connecting the wires 5, and the photoelectric probe 4 is used to measure the methane distribution in the water.
[0022] like Figure 1 and Figure 2As shown, when installing the photoelectric probe 4, firstly, one end of the connecting wire 5 needs to be fixedly connected to the sensor connector 3 on the photoelectric sensor processing host 1 through a conductive plug, and then the conductive plug at the other end of the connecting wire 5 needs to be fixedly connected to the photoelectric probe 4, and then the photoelectric probe 4 is installed in the water body through the probe depth changing device 6. After the photoelectric probe 4 is immersed in the water body, the photoelectric sensor processing host 1 and the photoelectric probe 4 need to be started through the touch function of the data display screen 2 or the control button 8, and the detection mode is set. At this time, the photoelectric probe 4 will measure the methane distribution in the water body. The photoelectric probe 4 has a built-in laser emission window for emitting lasers of a specific wavelength. The photoelectric probe 4 is also equipped with a laser receiving window for receiving laser light after being scattered and absorbed by the water body. Through the ranging window, the photoelectric probe 4 can measure the propagation distance of the laser in the water, thereby calculating the concentration distribution of methane in the water body. The laser data received by the photoelectric probe 4 will be transmitted back to the photoelectric sensor processing host 1 through the connecting wire 5. The host receives the optical signal transmitted back by the photoelectric probe 4, converts it into an electrical signal through the internal photoelectric detector, and is amplified and filtered by the signal processing circuit. The processed signal is transmitted to the data analysis unit to calculate and analyze the methane concentration, and the result is displayed on the data display screen 2 or transmitted to the terminal through the wireless network card.
[0023] like Figure 1 , Figure 3 and Figure 4 As shown, a probe depth changing device 6 is arranged outside the photoelectric probe 4, and the probe depth changing device 6 includes a lifting fixed plug rod 11, a lifting screw 14, a thickened fixing ring 15, a lifting screw hole 16, an integrated board 17 and a lifting motor 19. A lifting fixed plug rod 11 is arranged at the bottom left of the center of the integrated board 17, a thickened fixing ring 15 is fixed outside the photoelectric probe 4, and lifting guide holes and lifting screw holes 16 are arranged inside the left and right ends of the thickened fixing ring 15, respectively. The bottom end of the lifting fixed plug rod 11 passes through the lifting guide hole, and a lifting motor 19 is arranged on the top of the right end of the integrated board 17. The bottom end of the output shaft of the lifting motor 19 is connected to the lifting screw 14, and the top end of the lifting screw 14 passes through the lifting screw 14. Screw hole 16, the lifting motor 19 can drive the lifting screw 14 to rotate clockwise or counterclockwise through the output shaft. When the lifting screw 14 rotates clockwise or counterclockwise, the lifting screw hole 16 can be driven to move up and down through the pushing action of the thread, and the lifting screw hole 16 drives the thickened fixing ring 15 to move up and down. The lifting guide hole can move up and down on the outside of the lifting and fixing plug 11. The probe depth changing device 6 also includes a supporting connecting rod 12, a fixed bearing 13 and a wire hole 18. A fixed sleeve is provided at the left end of the supporting connecting rod 12, and the fixed sleeve is fixed to the lower side of the center of the lifting and fixing plug 11. A fixed bearing 13 is provided at the right end of the supporting connecting rod 12, and the fixed bearing 13 is sleeved on the outside of the bottom end of the lifting screw 14.
[0024] like Figure 1 , Figure 3 and Figure 4 As shown, a wire hole 18 is provided inside the center of the integrated board 17, and the connecting wire 5 passes through the wire hole 18, and the connecting wire 5 can move back and forth in the wire hole 18. The length of the lifting and fixing rod 11 is greater than the length of the lifting screw 14. When the photoelectric probe 4 is placed in the water body to measure the methane distribution, it is necessary to first fix the thickened fixing ring 15 to the outside of the photoelectric probe 4, and then the lifting and fixing rod 11 and the lifting screw 14 need to be passed through the lifting guide hole and the lifting screw hole 16 inside the thickened fixing ring 15 respectively, and then slide the fixing sleeve up so that the fixed bearing 13 supporting the right end of the connecting rod 12 is sleeved and fixed on the outside of the bottom end of the lifting screw 14, and then maintain the height unchanged and fix the fixing sleeve by screws so that the fixing sleeve is fixed when At the front height, the fixed bearing 13 can be fixed on the outside of the bottom end of the lifting screw 14, and the lifting screw 14 can rotate normally. Then, it is necessary to determine the measuring position, and insert the bottom end of the lifting fixed plug 11 into the mud at the bottom of the water body until the inserted lifting fixed plug 11 is blocked by the supporting connecting rod 12 and the fixed bearing 13. In this way, the lifting fixed plug 11 will remain vertically fixed in the water body, and then the lifting motor 19 needs to be electrically connected to the photoelectric sensor processing host 1 through wires, so that the user can remotely control the working condition of the lifting motor 19 through the photoelectric sensor processing host 1, and then start the photoelectric probe 4 normally to measure the methane distribution in the water body.
[0025] like Figure 1 , Figure 3 and Figure 4As shown, in order to increase the measurement accuracy and the different values of methane distribution in each depth of the water body, the lifting motor 19 can be controlled by the photoelectric sensor processing host 1. When the lifting motor 19 drives the lifting screw 14 to rotate clockwise through the output shaft, the lifting screw 14 will push the lifting screw hole 16 upward through the thread pushing action, so that the photoelectric probe 4 will move upward through the thickened fixing ring 15, so that the photoelectric probe 4 can measure the methane distribution of higher water layers. When the lifting motor 19 rotates counterclockwise, it will push the photoelectric cigarette butt downward, so that the photoelectric probe 4 moves toward deeper water, so that the depth of water can be measured. The distribution of methane in the body is determined by the lifting guide hole inside the left end of the thickened fixing ring 15, because the lifting guide hole inside the left end of the thickened fixing ring 15 is sleeved on the outside of the lifting fixing rod 11, the lifting screw 14 will not drive the thickened fixing rod to rotate when it rotates, and the lifting guide hole sleeved on the outside of the lifting fixing rod 11 will prevent the thickened fixing ring 15 from rotating, so that the lifting screw 14 can normally drive the thickened fixing ring 15 to move up and down, so as to achieve the purpose of changing the measurement depth of the photoelectric probe 4, and in harsh or dangerous water environments, the user can directly adjust the probe depth through the probe depth changing device 6 without contacting the water body, which can avoid potential safety risks and ensure the safety of the operator.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A photoelectric sensor for measuring methane distribution in water, comprising a photoelectric sensor processing host (1) and a sensor connector (3) arranged at the right end of the photoelectric sensor processing host (1), the sensor connector (3) being connected with a connecting wire (5), the left end of the connecting wire (5) being connected with a photoelectric probe (4), both ends of the connecting wire (5) being provided with conductive plugs, and the two conductive plugs being fixedly connected to the sensor connector (3) and the photoelectric probe (4) respectively, characterized in that: The photoelectric probe (4) is provided with a probe depth changing device (6) outside; The probe depth changing device (6) comprises a lifting and fixing plug rod (11), a lifting screw rod (14), a thickened fixing ring (15), a lifting screw hole (16), an integrated board (17) and a lifting motor (19). A lifting and fixing plug rod (11) is arranged at the left bottom of the center of the integrated board (17). A thickened fixing ring (15) is fixed to the outside of the photoelectric probe (4). Lifting guide holes and lifting screw holes (16) are arranged inside the left and right ends of the thickened fixing ring (15). The bottom end of the lifting and fixing plug rod (11) passes through the lifting guide hole. A lifting motor (19) is arranged at the top of the right end of the integrated board (17). The bottom end of the output shaft of the lifting motor (19) is connected to the lifting screw rod (14), and the top end of the lifting screw rod (14) passes through the lifting screw hole (16).
2. A photoelectric sensor for measuring methane distribution in water according to claim 1, characterized in that: The lifting motor (19) can drive the lifting screw (14) to rotate clockwise or counterclockwise via the output shaft. When the lifting screw (14) rotates clockwise or counterclockwise, the lifting screw hole (16) can be driven to move up and down via the pushing action of the thread. The lifting screw hole (16) drives the thickened fixing ring (15) to move up and down. The lifting guide hole can move up and down outside the lifting fixing plug rod (11).
3. A photoelectric sensor for measuring methane distribution in water according to claim 2, characterized in that: The probe depth changing device (6) further comprises a supporting connecting rod (12), a fixed bearing (13) and a wire hole (18); a fixed sleeve is arranged at the left end of the supporting connecting rod (12), and the fixed sleeve is fixed to the lower outside of the center of the lifting fixed plug rod (11); a fixed bearing (13) is arranged at the right end of the supporting connecting rod (12), and the fixed bearing (13) is sleeved on the outside of the bottom end of the lifting screw rod (14).
4. A photoelectric sensor for measuring methane distribution in water according to claim 3, characterized in that: A wire hole (18) is provided at the center of the integrated board (17), and the connecting wire (5) passes through the wire hole (18), and the connecting wire (5) can move back and forth in the wire hole (18), and the length of the lifting and fixing rod (11) is greater than the length of the lifting screw rod (14).
5. The photoelectric sensor for measuring methane distribution in water according to claim 1, characterized in that: A data display screen (2) is arranged on the upper side of the front center of the photoelectric sensor processing host (1); the data display screen (2) is a high-definition touch screen; control buttons (8) are arranged on the lower side of the data display screen (2); the photoelectric sensor processing host (1) can be controlled simultaneously through the touch-type data display screen (2) and the control buttons (8).
6. A photoelectric sensor for measuring methane distribution in water according to claim 5, characterized in that: An alarm flash light (9) is also provided inside the front end of the photoelectric sensor processing host (1), and the alarm flash light (9) is close to the bottom of the photoelectric sensor processing host (1), and alarm speakers (10) are provided on both sides of the alarm flash light (9).
7. A photoelectric sensor for measuring methane distribution in water according to claim 6, characterized in that: The upper and lower ends of the back of the photoelectric sensor processing host (1) are both provided with mounting blocks (7), screws can be inserted into the mounting blocks (7), and the mounting blocks (7) and the photoelectric sensor processing host (1) can be fixed to the wall of the building by means of screws.