Liquid level measuring device
By installing infrared emitters and reflectors in the liquid storage tank and combining them with buoyancy balance components, accurate measurement of liquid levels in deep water environments is achieved. This solves the problems of inaccurate measurements and easy corrosion of electronic equipment caused by traditional devices in deep water environments, and provides a stable and reliable liquid level monitoring solution.
Patent Information
- Application Number
- CN202521890383.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2035-09-03
AI Technical Summary
Traditional liquid level measurement devices in liquid reservoirs are difficult to measure accurately in deep water environments, and the electronic equipment is easily corroded and failed by the contamination of the stored liquid, and has poor stability.
The infrared emitter is installed at an angle, and the infrared light is reflected by the reflector onto the horizontal scale. Combined with the buoyancy balance component, the reflector is ensured to float stably, thus realizing indirect measurement of the liquid level.
It achieves accurate, stable and liquid level measurement in deep water environment without being affected by liquid contamination, avoids the risk of manual close observation and improves the reliability and accuracy of measurement.
Smart Images
Figure CN223426051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of measurement, specifically is a liquid level measuring device. BACKGROUND
[0002] The liquid storage pool is a structure or equipment for storing liquid. It is usually a large pool with a certain depth, made of concrete, steel, plastic or other corrosion-resistant materials. In the modern industrial field, the liquid storage pool provides stable liquid raw material supply for production process, or temporarily stores intermediate products, final products and waste water, plays a buffering role of balancing the flow of front and rear processes and ensuring the continuity of production. In order to ensure the stable operation of the liquid storage supply system, the industrial management of the liquid storage pool is particularly important, which includes the liquid level measurement and monitoring work of the liquid storage pool.
[0003] The traditional measurement of the liquid storage pool is generally applicable to the vertical scale that touches the bottom. The liquid level height can be directly observed through the scale graduation, but for the case of deep water and scale pollution by the stored liquid, it is not only inconvenient to observe, but also may fall into the water for close observation of the scale reading. In addition, new measurement technology also uses electronic devices such as liquid level sensors to realize liquid level monitoring, but due to the long-term immersion of electronic components in the stored liquid, the liquid storage pool is easy to lose accuracy or fail due to pollution and corrosion, and the stability and durability are not good.
[0004] Based on this, the utility model designs a liquid level measuring device to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to provide a liquid level measuring device to solve the above technical problems.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:
[0007] A liquid level measuring device, comprising a liquid storage pool, an infrared emitter is installed and arranged at the left upper corner of the inner side wall of the liquid storage pool, the infrared emitter is installed obliquely, and the infrared light emitted by the infrared emitter is emitted at an oblique angle to the liquid surface in the liquid storage pool, limit slide rods are fixedly installed on the left and right side walls of the liquid storage pool respectively, a reflecting plate is arranged between the limit slide rods on the left and right sides, the reflecting plate is slidably sleeved on the limit slide rods at both ends, a buoyancy balancing assembly is further arranged on the left and right sides of the reflecting plate, and a horizontal scale is arranged on the upper edge of the inner wall of the liquid storage pool.
[0008] Preferably, the incident angle a of the infrared emitter is 45°.
[0009] Preferably, the top surface of the reflecting plate is coated with a reflective coating.
[0010] Preferably, both left and right ends of the reflector are provided with limiting sliding holes, and the limiting sliding rod is slidably sleeved in the limiting sliding holes.
[0011] Preferably, the upper and lower ends of the limiting sliding rod are respectively fixedly mounted on a wall-mounted support, and the wall-mounted support is fixedly mounted on the inner wall of the liquid storage tank.
[0012] Preferably, balance mounting holes are provided on both the left and right sides of the reflector, and the buoyancy balance assembly includes a buoyancy cylinder and a counterweight block, which are respectively located on the upper and lower sides of the reflector, and studs and screw holes are respectively provided on the top of the counterweight block and the bottom of the buoyancy cylinder, and the studs pass through the balance mounting holes and are screwed and fixed to the screw holes.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] This new liquid level measuring device uses infrared reflection to indirectly measure liquid level. In actual operation, the current liquid level in the reservoir can be determined by observing the point where the infrared light from the infrared emitter falls on the horizontal scale and performing a simple dimension conversion. Compared to traditional depth scales and liquid level sensors, this new liquid level measuring device is unaffected by contamination and corrosion of the stored liquid, eliminates the need for risky manual observation, and provides more accurate and stable measurements. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 This is a schematic diagram of the overall structure installation of the liquid level measuring device of the utility model;
[0017] Figure 2 This is a schematic diagram of the installation of the reflector structure of the utility model. DETAILED DESCRIPTION
[0018] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.
[0019] Example 1
[0020] The utility model provides a technical solution:
[0021] like Figure 1 A liquid level measuring device includes a liquid reservoir 10, and an infrared emitter 20 is installed at the upper left corner of the inner wall of the liquid reservoir 10. The infrared emitter 20 has a hinge base structure with an adjustable installation angle, and the infrared light of the infrared emitter 20 can be adjusted to a suitable emission angle through the hinge base; the infrared emitter 20 is installed at an angle, and the infrared light it emits is emitted toward the liquid surface in the liquid reservoir 10 at an inclined angle. In this embodiment, for the convenience of subsequent size conversion, the incident angle α of the infrared light emitted by the infrared emitter 20 is 45°.
[0022] The left and right walls of the reservoir 10 are each fixedly mounted with a limit slide 60. The upper and lower ends of the limit slide 60 are respectively fixedly mounted on a wall-mounted support 61, which is fixedly mounted on the inner wall of the reservoir 10. A reflector 30 is positioned between the two limit slides 60. The reflector 30 is coated with a reflective coating 31 on its top surface, and its ends slide over the limit slide 60. Specifically, the left and right ends of the reflector 30 each have a limit slide hole 32 defined therein, and the limit slide slidably engages with the limit slide hole 32. This mounting structure ensures that the reflector 30 remains horizontal at all times.
[0023] like Figure 2 , buoyancy balancing components 40 are also provided on the left and right sides of the reflector 30. Specifically, balancing mounting holes 33 are opened on the left and right sides of the reflector 30. The buoyancy balancing component 40 includes a buoyancy cylinder 41 and a counterweight 42. The buoyancy cylinder 41 and the counterweight 42 are respectively located on the upper and lower sides of the reflector 30. Studs 43 and screw holes 44 are respectively provided on the top of the counterweight 42 and the bottom of the buoyancy cylinder 41. The studs 43 pass through the balancing mounting holes 33 and are screwed and fixed with the screw holes 44. The buoyancy cylinder 41 mainly provides buoyancy to ensure that the reflector 30 floats on the liquid surface. The counterweight 42 balances the buoyancy and lowers the center of gravity of the buoyancy balancing component 40 to ensure that the reflector 30 can be as stably attached to the liquid surface as possible. Therefore, when the liquid level in the liquid reservoir 10 changes, the reflector 30 can float and adhere to the liquid surface more stably, and rise or fall in real time with the change of the liquid level.
[0024] A horizontal scale 50 is provided on the upper edge of the inner wall of the liquid reservoir 10 . The infrared light emitted by the infrared emitter 20 is directed toward the reflector 30 at an incident angle of 45°. The infrared light emitted by the infrared emitter 20 is reflected by the reflector 30 and falls on the horizontal scale 50 .
[0025] like Figure 1The incident light from the infrared emitter 20, the reflected light, and the line segment b between the points m and n on the horizontal scale 50 formed by their extension lines form an isosceles right triangle. The line segment b=|mn| can be observed and converted through the horizontal scale 50; then, the vertical height difference between the reflector 30 and the horizontal scale 50 is c=b / 2; if the total depth of the liquid reservoir 10 is a, then the actual liquid level height of the liquid reservoir 10 is ac=b / 2=|mn| / 2.
[0026] Further embodiment:
[0027] In actual work applications, in order to facilitate calculation, the relative position between the infrared emitter 20 and the horizontal scale 50 can be adjusted so that the extended line of the incident light of the infrared emitter 20 falls at point m on the horizontal scale 50 just at the left end of the measuring range of the horizontal scale 50; at the same time, the length of the horizontal scale 50 is set to twice the total depth of the liquid reservoir 10 2a, the 0 scale of the horizontal scale 50 is set at the right end, and the scale reading value on the horizontal scale 50 is set to 1 / 2 times the actual length. For example, if the actual length of the scale is 1 meter, the scale reading is 0.5 meters; then, the horizontal scale 50 is a scale with gradually decreasing scales in the range from a to 0, and the reading of the extended line of the reflected light of the infrared emitter 20 at point n on the horizontal scale 50 is the actual liquid level of the liquid reservoir 10, which is ac=b / 2=|mn| / 2.
[0028] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A liquid level measuring device, characterized in that: The invention comprises a liquid reservoir (10), wherein an infrared emitter (20) is installed at the upper left corner of the inner wall of the liquid reservoir (10), the infrared emitter (20) is installed at an angle, and the infrared light emitted by the infrared emitter (20) is directed toward the liquid surface in the liquid reservoir (10) at an inclined angle, and the left and right side walls of the liquid reservoir (10) are respectively fixedly installed with limit slide bars (60), and a reflector (30) is provided between the limit slide bars (60) on both sides, and the two ends of the reflector (30) are slidably sleeved on the limit slide bars (60), and buoyancy balance components (40) are further provided on the left and right sides of the reflector (30), and a horizontal scale (50) is provided on the upper edge of the inner wall of the liquid reservoir (10), and the infrared light emitted by the infrared emitter (20) is reflected by the reflector (30) and falls on the horizontal scale (50).
2. A liquid level measuring device according to claim 1, characterized in that: The incident angle α of the infrared light emitted by the infrared emitter (20) is 45°.
3. A liquid level measuring device according to claim 1, characterized in that: The top surface of the reflective plate (30) is coated with a reflective coating (31).
4. A liquid level measuring device according to claim 1, characterized in that: The left and right ends of the reflector (30) are both provided with limiting sliding holes (32), and the limiting sliding rods are slidably sleeved with the limiting sliding holes (32).
5. The liquid level measuring device according to claim 1, characterized in that: The upper and lower ends of the limiting slide bar (60) are respectively fixedly mounted on a wall-mounted support (61), and the wall-mounted support (61) is fixedly mounted on the inner wall of the liquid storage tank (10).
6. The liquid level measuring device according to claim 1, characterized in that: The reflective plate (30) is provided with a balance mounting hole (33) on both the left and right sides. The buoyancy balance assembly (40) includes a buoyancy cylinder (41) and a counterweight (42). The buoyancy cylinder (41) and the counterweight (42) are respectively located on the upper and lower sides of the reflective plate (30). The top of the counterweight (42) and the bottom of the buoyancy cylinder (41) are provided with a stud (43) and a screw hole (44), respectively. The stud (43) passes through the balance mounting hole (33) and is screwed and fixed to the screw hole (44).