Water ammonia nitrogen concentration detection device

Abstract

The utility model discloses a water ammonia nitrogen concentration detection device, and belongs to the technical field of water detection. The device comprises a light emitting source, a light homogenizing plate, a test tube clamping unit, a color recognition unit and a processor which are sequentially arranged along the linear direction, and the light homogenizing plate can enable light emitted by the light emitting source to be uniformly distributed and irradiate relative to the test tube clamping unit; the test tube clamping unit can clamp a test tube containing a water body treated by a Nessler reagent; the color recognition unit comprises a camera, the camera is used for extracting the color of the water body in the test tube, the processor is electrically connected with the camera, and the processor can judge the concentration of ammonia nitrogen in the water body according to the color of the water body. According to the utility model, the ammonia nitrogen content of the water body can be rapidly detected on the premise that professional equipment and personnel are not required to participate.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality rapid detection technical field especially relates to a water body ammonia nitrogen concentration detection device. BACKGROUND

[0002] The method for detecting ammonia nitrogen concentration of water sample by using Nessler's reagent is based on the principle that the color depth of colored precipitate is proportional to the ammonia nitrogen concentration in water sample, and higher ammonia nitrogen concentration will result in deeper color.

[0003] After a series of standard solutions with different concentrations are prepared by using Nessler's reagent, colorimetry or spectrophotometry is carried out to measure the absorbance of the colored product, and the absorbance is proportional to the ammonia nitrogen concentration in water sample.

[0004] However, the spectrometer used in this process is very expensive and complicated to operate, which is not conducive to non-professionals such as middle school students to operate and use. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a water body ammonia nitrogen concentration detection device to solve the problem that non-professionals cannot use Nessler's reagent to detect ammonia nitrogen concentration of water sample.

[0006] The utility model provides a water body ammonia nitrogen concentration detection device, including emitting light source, homogenizing plate, test tube clamping unit, color recognition unit and processor who sets out in sequence along linearity, the homogenizing plate can make the light that emitting light source emits is uniformly distributed and relative test tube clamping unit irradiation, test tube clamping unit can clamping the test tube that holds water body by Nessler's reagent processing, color recognition unit includes camera, the camera is used to extract the color of water body in test tube, the processor with camera electric connection, the processor can judge ammonia nitrogen concentration in water body according to water body color.

[0007] Further, the test tube clamping unit includes a clamping frame, the clamping frame includes a first rod body and a second rod body arranged opposite and spaced apart, and an open space is formed between the first rod body and the second rod body and cooperates with the homogenizing plate; the first rod body is provided with a through hole matched with the middle part of the test tube, and the second rod body is provided with a blind hole matched with the bottom of the test tube.

[0008] Further, the blind hole is conical or spherical.

[0009] Further, the light emitting source includes a shell and a light emitting lamp plate, the light emitting lamp plate is connected with the shell and is arranged opposite to the homogenizing plate.

[0010] Further, the shell is provided with a plurality of heat dissipation grooves and is in communication with the outside.

[0011] Further, the shell, light emitting source, light uniformity plate, test tube clamping unit, color recognition unit and processor are connected with and arranged in the shell, and a relatively sealed space is formed between the light emitting plate, light uniformity plate and shell to hinder the loss of direction.

[0012] Further, the shell is provided with an opening arranged relative to the test tube clamping unit, and the opening is used for communication with the outside to insert the test tube.

[0013] Further, the inner wall of the shell is provided with an anti-reflection coating.

[0014] Compared with the prior art, the device has the beneficial effects that:

[0015] The water body ammonia nitrogen concentration detection device comprises a light emitting source, a light uniformity plate, a test tube clamping unit, a color recognition unit and a processor which are sequentially arranged along a line, wherein the light emitting source can emit corresponding light, and the light uniformity plate can process the light from the light emitting source to make the light uniformly distributed. The test tube clamping unit can clamp a test tube containing water treated by a Nessler's reagent, the light processed by the light uniformity plate is irradiated on the test tube, the light uniformity plate can eliminate the shadow or highlight of the light, thereby improving the uniformity of illumination, making the intensity and irradiation direction of the light received by each test tube completely consistent, reducing the generation of color difference, ensuring that the water body transmits the most real color to the outside world, and improving the accuracy of ammonia nitrogen detection. The color recognition unit comprises a camera, the camera is used for extracting the color of the water in the test tube, and the processor can judge the ammonia nitrogen concentration in the water body according to the color of the water body to realize rapid detection of the ammonia nitrogen content in the water body. Moreover, the detection process is simpler, and the participation of professional equipment and personnel is not required, thereby reducing the difficulty and cost of detection. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments and the description thereof are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of the whole present application;

[0018] Figure 2 It is a structural schematic diagram of the present application without a shell;

[0019] Figure 3 It is a structural schematic diagram of the test tube clamping unit in the present application;

[0020] Figure 4 It is a structural schematic diagram of the light emitting source in the present application Figure 1 ;

[0021] Figure 5 is a structure diagram of the light emitting source in the utility model Figure 2 .

[0022] In the figure, 100, light emitting source; 110, shell; 111, heat dissipation groove; 120, light emitting lamp plate;

[0023] 200, light uniformizing plate;

[0024] 300, test tube clamping unit; 310, clamping frame body; 311, first rod body; 311a, through hole; 312, second rod body; 312a, blind hole;

[0025] 400, color recognition unit; 410, camera;

[0026] 500, processor;

[0027] 600, shell; 610, opening. DETAILED DESCRIPTION

[0028] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, wherein the drawings form a part of the present application and are used together with the embodiments of the utility model to explain the principles of the utility model, but are not used to limit the scope of the utility model.

[0029] The water body ammonia nitrogen concentration detection device in the embodiment relates to the water body detection technical field, and the water body treated by the Nash reagent is uniformly lighted, the color characteristics of the water body are extracted by using the camera 410, the ammonia nitrogen content in the water body is simply and quickly detected according to the relationship between the color and the ammonia nitrogen content.

[0030] Please refer to Figures 1 to 5 The water body ammonia nitrogen concentration detection device in the embodiment includes a light emitting source 100, a light uniformizing plate 200, a test tube clamping unit 300, a color recognition unit 400 and a processor 500 arranged in sequence along a line, wherein the light emitting source 100 can emit corresponding light, the light uniformizing plate 200 can process the light from the light emitting source 100, so that the light is uniformly distributed. The test tube clamping unit 300 can clamp the test tube containing the water body treated by the Nash reagent, the light treated by the light uniformizing plate 200 is irradiated on the test tube, the light uniformizing plate can eliminate the shadow or highlight of the light, thereby improving the uniformity of the illumination, so that the intensity and the irradiation direction of the light received by each test tube are completely consistent, the generation of the color difference can be reduced, the most real color of the water body can be ensured to be transmitted to the outside world, and the accuracy of the ammonia nitrogen detection is improved. The color recognition unit 400 includes the camera 410, the camera 410 is used to extract the color of the water body in the test tube, and the processor 500 can judge the ammonia nitrogen concentration in the water body according to the color of the water body, so that the ammonia nitrogen content in the water body is quickly detected. Moreover, the detection process is simpler, and the participation of professional equipment and personnel is not needed, so that the difficulty and the cost of the detection are reduced.

[0031] In some embodiments, referring to Figure 3 , the test tube clamping unit 300 includes a clamping frame body 310, which includes a first rod body 311 and a second rod body 312 arranged opposite to each other, and an unobstructed open space is formed between the first rod body 311 and the second rod body 312. The light from the light homogenizing plate 200 can irradiate this open space with parallel light of the same direction and intensity, and the test tube containing water can be illuminated, which can reduce the generation of color difference, ensure that the water transmits the most true color to the outside world, and improve the accuracy of ammonia nitrogen detection.

[0032] As a further implementation, the first rod body 311 is provided with a through hole 311a, and the test tube can be inserted into the through hole 311a, so that the middle part of the test tube cooperates with the through hole 311a to limit the horizontal position of the test tube. The second rod body 312 is provided with a blind hole 312a, which can cooperate with the bottom of the test tube. While further limiting the horizontal position of the test tube with the through hole 311a, it can also bear the weight of the test tube, limit the vertical position of the test tube, and ensure that the test tube is firmly clamped and fixed in the clamping frame body 310. The arrangement of the through hole 311a and the blind hole 312a helps to ensure that the test tube is always in the ideal light irradiation area during the entire measurement process. Moreover, the blind hole 312a cooperates with the bottom of the test tube, further improving the stability of clamping, avoiding the movement or inclination of the bottom of the test tube, and further optimizing the measurement accuracy.

[0033] In the specific implementation process, please continue to refer to Figure 3 , the clamping frame body 310 further includes two support rods, which are respectively arranged on the two sides of the first rod body 311 and the second rod body 312, and the two ends of the support rod are respectively fixedly connected with the first rod body 311 and the second rod body 312, forming a quadrilateral frame structure to ensure the overall stability of the clamping frame body 310.

[0034] In addition, a through hole 311a and a blind hole 312a are correspondingly arranged to form a clamping hole group, which can clamp and fix a test tube. Multiple clamping hole groups are arranged at equal distances, so that the test tube clamping unit 300 can clamp multiple test tubes at the same time, and the color of the multiple test tubes can be extracted to determine the ammonia nitrogen content in the water in the test tube, thereby improving the detection efficiency.

[0035] In some embodiments, please continue to refer to Figure 3 , the blind hole 312a is conical or spherical. The conical or spherical blind hole 312a can provide more accurate positioning, making the test tube more stable at the bottom contact. The conical and spherical geometric structures can enhance the support force on the test tube through the natural form of the contact surface, thereby reducing the inclination or shaking of the test tube and ensuring its fixing effect in the clamping unit.

[0036] In some embodiments, referring to Figure 4 and Figure 5 , the light source 100 includes a housing 110 and a light-emitting lamp plate 120 connected to the housing 110 and arranged opposite to the light homogenizing plate 200. The housing 110 provides physical protection for the light source 100, preventing external environmental factors such as dust, moisture, impact, etc. from damaging the light-emitting lamp plate 120, thereby prolonging the service life of the light source and ensuring its long-term stable operation. The arrangement of the light-emitting lamp plate 120 opposite to the light homogenizing plate 200 ensures that the emitted light can uniformly irradiate onto the test tube. The light homogenizing plate 200 further uniformly distributes the light on the test tube surface, avoiding detection errors caused by uneven light source. The light homogenizing plate 200 can improve the measurement accuracy of the color recognition unit 400, ensuring that the uniformity of light has a consistent impact on the color recognition of the test tube sample.

[0037] As a further implementation, the housing 110 is provided with a plurality of heat dissipation grooves 111 and is in communication with the outside. The arrangement of the heat dissipation grooves 111 enables the housing 110 to effectively dissipate the heat generated by the light source 100 to the surrounding environment, preventing the light-emitting lamp plate 120 from overheating. Overheating can affect the performance of the light source 100, shorten its service life, and possibly cause failure of other components. Through the ventilation design of the heat dissipation grooves 111, heat can be quickly dissipated, thereby maintaining the device within the normal operating temperature range.

[0038] The arrangement of the heat dissipation grooves 111 helps to maintain the stable operating temperature of the light source 100, ensuring that the lamp plate will not appear brightness attenuation or damage during the working process due to overheating. When the temperature is too high, the brightness of the light source usually decreases, which will affect the accurate measurement of the water body color, so effective heat dissipation can improve the measurement accuracy and reliability of the device.

[0039] The water body ammonia nitrogen concentration detection device further includes a housing 600, and the light source 100, the light homogenizing plate 200, the test tube clamping unit 300, the color recognition unit 400, and the processor 500 are respectively connected to the housing 600 and arranged in the housing 600. The housing 600 can provide a connection basis for the connection of the light source 100, the light homogenizing plate 200, the test tube clamping unit 300, the color recognition unit 400, and the processor 500, so that the above-mentioned components can maintain a relatively correct position and distance, improving the system stability. A sealed space is formed between the light-emitting lamp plate 120, the light homogenizing plate 200, and the housing 600. The sealed space helps to prevent the light of the light source from dissipating to non-target areas, ensuring that the emitted light is concentrated on the light homogenizing plate 200 and the test tube, improving the utilization rate of light. This makes the light source more energy-efficient, thereby enhancing the sensitivity and accuracy of detection.

[0040] The sealed space helps to avoid interference of external environmental factors (such as dust, moisture, stray light, etc.) on the system, ensuring the stability of light and the reliability of the measurement process. In this way, the accuracy of the color recognition unit 400 can be maintained, and measurement errors caused by external factors can be avoided.

[0041] It should be noted that the shell 600 is provided with an opening 610 opposite to the test tube clamping unit 300. The opening 610 is designed to communicate with the outside world, allowing the user to quickly and conveniently insert or remove the test tube, reducing the complexity of the operation. The opening 610 improves the efficiency of the experiment, making the testing process more smooth, especially suitable for application scenarios where water samples are frequently changed or multiple tests are performed.

[0042] Although the shell 600 is provided with the opening 610, the opening 610 is usually designed with a reasonable design (such as a sealing edge, a sliding door, etc.) to ensure that air leakage or stray light leakage does not occur inside the device when the test tube is inserted.

[0043] In some embodiments, the inner wall of the shell 600 is provided with an anti-reflection coating. The anti-reflection coating can effectively reduce the light reflection on the surface of the inner wall, avoiding interference of the reflected light with the light between the light source and the test tube. The anti-reflection coating helps to ensure that the light propagates along the predetermined path, improves the illumination accuracy of the light source, and avoids the influence of excess light on the measurement results. The anti-reflection coating can also effectively prevent the light from being reflected back to the camera 410 of the color recognition unit 400, reducing the interference of stray light, so that the camera 410 can more clearly acquire the color of the water in the test tube, improving the accuracy and response speed of the image recognition system.

[0044] Workflow: First, 50mL of the water to be tested is taken and placed in the test tube, 1.0mL of sodium tartrate solution with a concentration of 500g / L is added to the test tube, and the test tube is shaken until the mixture is uniform. Then, 1.0mL of Nash reagent is added and mixed uniformly, and the test tube is left still for ten minutes. Then, the test tube is inserted into the clamping frame body 310 from the opening 610. Next, the light source 100 and the camera 410 are turned on, the light from the light source 100 is dispersed by the diffuser plate 200 and uniformly irradiated onto the test tube, the water in the test tube reflects light with the same color as itself to the camera 410, the camera 410 extracts the color and transmits the data to the processor 500, and the processor 500 obtains the ammonia nitrogen concentration of the water body with the corresponding color according to the function of the color and the ammonia nitrogen concentration.

[0045] The above description is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the present application.

Claims

1. A device for detecting ammonia nitrogen concentration in a water body, characterized in that, The application relates to a device for detecting ammonia nitrogen concentration in water, which comprises linearly arranged light-emitting sources, a light-uniformizing plate, a test tube clamping unit, a color recognition unit and a processor, wherein the light-uniformizing plate can make the light emitted by the light-emitting sources uniformly distributed and irradiated to the test tube clamping unit; the test tube clamping unit can clamp a test tube containing water treated by a Nessler reagent; the color recognition unit comprises a camera for extracting the color of the water in the test tube; the processor is electrically connected with the camera, and the processor can judge the ammonia nitrogen concentration in the water according to the color of the water.

2. The device for detecting ammonia nitrogen concentration in water body according to claim 1, characterized in that, The test tube clamping unit comprises a clamping frame, the clamping frame comprises oppositely spaced first and second rod bodies, and an open space matched with the light-uniformizing plate is formed between the first and second rod bodies; a through hole matched with the middle part of the test tube is arranged on the first rod body, and a blind hole matched with the bottom of the test tube is arranged on the second rod body. 3.The water ammonia concentration detection device according to claim 2, characterized in that, The blind hole is conical or spherical.

4. The device for detecting ammonia nitrogen concentration in water body according to claim 1, characterized in that, The light-emitting source comprises a shell and a light-emitting lamp plate, the light-emitting lamp plate is connected with the shell and arranged opposite to the light-uniformizing plate.

5. The device for detecting ammonia nitrogen concentration in water body according to claim 4, characterized in that, A plurality of heat dissipation grooves are arranged on the shell and communicated with the outside.

6. The device for detecting ammonia nitrogen concentration in water body according to claim 5, characterized in that, The device further comprises a shell, the light-emitting source, the light-uniformizing plate, the test tube clamping unit, the color recognition unit and the processor are connected with the shell and arranged in the shell, a relatively sealed space is formed between the light-emitting lamp plate, the light-uniformizing plate and the shell, and the space is used for blocking the loss of direction.

7. The device for detecting ammonia nitrogen concentration in water body according to claim 6, characterized in that, An opening is arranged on the shell and arranged opposite to the test tube clamping unit, the opening is used for being communicated with the outside so as to insert the test tube. 8.The water ammonia concentration detection device according to claim 6, characterized in that, An anti-reflection coating is arranged on the inner wall of the shell.

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