Liquid transparency detector

Abstract

The utility model relates to the technical field of liquid measurement, in particular to a liquid transparency detector which comprises a measuring cylinder, a funnel is arranged at the upper end of the measuring cylinder, the bottom end of the funnel is inserted into the measuring cylinder and communicated with a vortex tube, a detection unit is arranged below one side, deviating from an outlet of the vortex tube, of the inner wall of the measuring cylinder, and a signal unit is arranged on the bottom wall. A drain pipe is arranged on the side wall of the bottom end of the measuring cylinder; electromagnetic valves are arranged at the tail ends of the drain pipe and the vortex pipe. During use, the detection unit and the signal unit are started, to-be-detected liquid is injected into the funnel, optical signals received by the signal unit are weaker and weaker along with injection of the liquid, after the optical signals cannot be received or reach a threshold value, the electromagnetic valve at the tail end of the vortex tube is closed, liquid injection is stopped, and at the moment, the height of the liquid in the measuring cylinder is the transparency of the liquid. And the fluid flows through the vortex tube and is injected into the measuring cylinder in a vortex spiral state, so that suspended matters in the liquid drift away along with the stirring of the liquid, and the influence on the detection accuracy due to the sedimentation of the suspended matters is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid measurement, in particular to a liquid transparency detector. Background Art

[0002] Water transparency refers to the degree to which light penetrates the water, and is measured in centimeters. Water transparency is primarily determined by the amount of suspended matter, particularly phytoplankton. Therefore, water transparency not only reflects the photosynthetic capacity of phytoplankton but also roughly reflects the abundance of aquatic life and the richness of the water. A high level of suspended matter indicates low water transparency, while a low level indicates high water transparency.

[0003] There are three common methods for testing water transparency: the lead type method, the Secchi disk method, and the photometric transparency test. The first two methods rely on visual observation, which is subjective and depends on individual vision, resulting in low accuracy. The photometric transparency test uses a detection unit and a signal unit, respectively, positioned between the upper and lower walls of a graduated cylinder. The detection unit emits a light beam, while the signal unit receives it. The liquid to be tested is injected into the cylinder. The light beam passes through the liquid and is absorbed or blocked by suspended matter in the liquid, causing the intensity of the light beam received by the signal unit to gradually decrease until it reaches a threshold. The height of the liquid injected into the cylinder at this point represents the transparency of the liquid. However, it should be noted that many liquid transparency tests are performed in the laboratory after sampling. During this time, the liquid is no longer flowing. The time between sampling and the suspension can cause the suspended matter in the no longer flowing liquid to settle, resulting in an imbalance of suspended matter, which can affect the accuracy of the transparency test.

[0004] To this end, the utility model provides a liquid transparency detector to improve the objectivity and accuracy of photometric transparency detection. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and to propose a liquid transparency detector.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A liquid transparency detector includes a measuring cylinder, wherein a funnel is provided at the upper end of the measuring cylinder, the bottom end of the funnel is inserted into the measuring cylinder and is connected to a vortex tube, a detection unit is provided on the lower part of the inner wall of the measuring cylinder away from the outlet of the vortex tube, a signal unit is provided on the bottom wall, a drain pipe is provided on the side wall of the bottom end of the measuring cylinder, and electromagnetic valves are provided at the ends of the drain pipe and the vortex tube.

[0008] Preferably, the measuring cylinder is threadedly connected to the funnel.

[0009] Preferably, a cone bucket is detachably mounted on the bottom end of the measuring cylinder, the signal unit is arranged on the bottom wall of the cone bucket, and the drain pipe is arranged on the side wall of the bottom end of the cone bucket.

[0010] Preferably, the measuring cylinder is non-transparent.

[0011] Preferably, the outer wall of the measuring cylinder is provided with a notch along the axial direction, the outside of the notch is sealed, the inside of the notch is filled with water-sensing material, and the outer wall of the measuring cylinder is provided with a scale mark along the notch.

[0012] Preferably, an air hole is provided on the side wall of the measuring cylinder above the vortex tube.

[0013] Preferably, the apparatus further comprises a bracket, wherein the measuring cylinder is embedded in the bracket and suspended.

[0014] Compared with the existing technology, the present invention provides a liquid transparency detector with the following beneficial effects:

[0015] 1. When in use, turn on the detection unit and signal unit, and inject the liquid to be tested into the funnel. As the liquid is injected, the optical signal received by the signal unit becomes weaker and weaker. When it can no longer be received or reaches the threshold, the solenoid valve at the end of the vortex tube closes, stopping the injection. The height of the liquid in the measuring cylinder at this time is the transparency of the liquid. The fluid first flows through the vortex tube and is injected into the measuring cylinder in a vortex spiral state, causing the suspended matter in the liquid to float away as the liquid is stirred, preventing the suspended matter from settling and affecting the detection accuracy.

[0016] 2. The outer wall of the measuring cylinder is axially notched, dividing the notch into several spaces. Each space corresponds to a scale mark, and each space is filled with a water-sensing material. The water-sensing material changes color as it absorbs water, allowing the liquid's transparency to be intuitively determined by the corresponding scale mark in the color-changing space, making it more convenient and intuitive.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0019] Figure 2 It is a stereoscopic view and a cross-sectional view of the measuring cylinder and accessories of the present invention.

[0020] Figure 3 For the utility model Figure 2 A local schematic diagram of point A in the figure.

[0021] Figure 4 For the utility model Figure 2A partial schematic diagram of point B in FIG.

[0022] Figure 5 It is a three-dimensional schematic diagram of the funnel and vortex tube 3 of the present invention.

[0023] In the figure: 1. Graduated cylinder; 2. Funnel; 3. Vortex tube; 4. Detection unit; 5. Cone bucket; 6. Signal unit; 7. Drain pipe; 8. Notch; 9. Scale mark; 10. Air hole; 11. Bracket. DETAILED DESCRIPTION

[0024] The following is a combination of the appended examples of the present invention Figure 1-5 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1. In order to solve the problems existing in the prior art, this embodiment provides a liquid transparency detector, including a measuring cylinder 1, a funnel 2 is threadedly installed on the upper end of the measuring cylinder 1, and a rubber plug is inserted into the upper end of the funnel 2. The rubber plug is inserted when it is stationary to prevent dust from falling; the bottom end of the funnel 2 is inserted into the measuring cylinder 1 and is connected to a vortex tube 3. The inner wall of the measuring cylinder 1 is located below the side away from the outlet of the vortex tube 3. A detection unit 4 is provided. A cone bucket 5 is detachably installed at the bottom end of the measuring cylinder 1, and a signal unit 6 is embedded in the bottom wall of the cone bucket 5 (the detection unit 4 and the signal unit 6 are both existing technologies and are common equipment for photometric transparency detection methods). A drain pipe 7 is provided on the side wall of the lower end of the cone bucket 5, and solenoid valves are provided at the ends of the drain pipe 7 and the vortex tube 3. During use, the detection unit 4 and signal unit 6 are turned on. There is no obstruction in the graduated cylinder 1 at this time, and the light beam intensity received by the signal unit 6 is at the initial value. The liquid to be tested is injected into the funnel 2. As the liquid is injected, the optical signal received by the signal unit 6 becomes weaker and weaker. When it is no longer acceptable or reaches the threshold, the solenoid valve at the end of the vortex tube 3 closes, and the injection of liquid into the graduated cylinder 1 is stopped. At this time, the height of the liquid in the graduated cylinder 1 is the transparency of the liquid. The fluid first flows through the vortex tube 3 and then is injected into the graduated cylinder 1. After passing through the vortex tube 3, the liquid will take on a vortex spiral state, causing the suspended matter in the liquid to float away with the liquid vibration, preventing the suspended matter from settling and affecting the detection accuracy.

[0026] After the measurement is completed, open the two solenoid valves to discharge the liquid in the measuring cylinder 1, and then inject clean water from the funnel 2 for washing and cleaning, which will not affect the next test.

[0027] In this embodiment, an air hole 10 is provided on the side wall of the measuring cylinder 1 above the vortex tube 3 for discharging the gas in the measuring cylinder 1 to prevent the gas from being unable to be discharged when sealed, thereby affecting the continuous injection of liquid.

[0028] In this embodiment, a bracket 11 is also included, into which the measuring cylinder 1 is embedded and suspended. The bracket 11 comprises a transparent fixed cylinder, into which the measuring cylinder 1 is embedded. The sidewall of the fixed cylinder has a plurality of legs arranged in an annular array, and the bottom ends of the legs are fixedly connected to a support. The bracket 11 is used to support the measuring cylinder 1, thereby suspending the measuring cylinder 1.

[0029] In Example 2, the measuring cylinder 1 is non-transparent to reduce interference from external light sources.

[0030] In this embodiment, to more intuitively observe the changes in the liquid level in the graduated cylinder 1, a notch 8 is provided axially along the outer wall of the graduated cylinder 1. The notch 8 is sealed externally to prevent water leakage. The notch 8 is divided into a number of spaces, each corresponding to a scale mark. Each space is filled with a water-sensing material, such as color-changing silica gel or silicon dioxide, and scale marks 9 are provided along the outer wall of the graduated cylinder 1 along the notch 8. These materials change color when they absorb water, allowing the liquid transparency to be intuitively observed from the scale marks corresponding to the color-changing spaces, providing a more convenient and intuitive reading.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A liquid transparency detector, characterized in that: The measuring cylinder (1) comprises a funnel (2) at the upper end of the measuring cylinder (1), the bottom end of the funnel (2) is inserted into the measuring cylinder (1) and is connected to a vortex tube (3), a detection unit (4) is provided on the inner wall of the measuring cylinder (1) at a lower side away from the outlet of the vortex tube (3), a signal unit (6) is provided on the bottom wall, a drainage pipe (7) is provided on the side wall of the bottom end of the measuring cylinder (1), and electromagnetic valves are provided at the ends of the drainage pipe (7) and the vortex tube (3).

2. A liquid transparency detector according to claim 1, characterized in that: The measuring cylinder (1) is threadably connected to the funnel (2).

3. A liquid transparency detector according to claim 1, characterized in that: The bottom end of the measuring cylinder (1) is detachably mounted with a cone bucket (5), the signal unit (6) is arranged on the bottom wall of the cone bucket (5), and the drainage pipe (7) is arranged on the side wall of the bottom end of the cone bucket (5).

4. A liquid transparency detector according to claim 1, characterized in that: The measuring cylinder (1) is non-transparent.

5. A liquid transparency detector according to claim 4, characterized in that: The outer wall of the measuring cylinder (1) is provided with a notch (8) along the axial direction, the notch (8) is sealed on the outside, the notch (8) is filled with a water-sensing material, and the outer wall of the measuring cylinder (1) is provided with a scale mark (9) along the notch (8).

6. A liquid transparency detector according to claim 1, characterized in that: An air hole (10) is provided on the side wall of the measuring cylinder (1) located above the vortex tube (3).

7. A liquid transparency detector according to claim 4, characterized in that: It also includes a bracket (11), in which the measuring cylinder (1) is embedded and suspended.

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