Water quality detection water storage tank

By setting up a water barrier and a water barrier pipe in the water quality detection storage tank, the problem of low sampling efficiency and accuracy of the water quality detection device is solved, a stable liquid level and accurate sampling volume are achieved, and the efficiency and accuracy of water quality detection are improved.

CN223244031UActive Publication Date: 2025-08-19NANJING YIMU INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422433776.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-19
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The existing water quality detection devices are inefficient and have low accuracy during the sampling process, resulting in inaccurate detection results.

Method used

A water quality detection water storage tank is designed. By setting a first water barrier and a second water barrier in the box, the internal space of the box is divided into three sequentially connected cavity, and the water inlet, sampling port and outlet respectively connect these cavity, and the water barrier pipe is used to reduce the splash of liquid droplets and ensure the stability of the liquid level at the sampling port.

Benefits of technology

It improves sampling efficiency and accuracy, reduces the impact of droplet splash on sampling volume, and ensures the accuracy of sampling volume and the reliability of detection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water quality detection, and discloses a water storage tank for water quality detection, which comprises a tank body, a first water baffle and a second water baffle, the first water baffle and the second water baffle are arranged in the box body and divide the inner space of the box body into three mutually communicated cavities along the length direction of the box body, and the water inlet, the water outlet and the sampling port are respectively communicated with the three cavities. According to the water storage tank, liquid in the first water baffle and the second water baffle can be prevented from splashing, the flow speed of the liquid is reduced, the cavity between the first water baffle and the second water baffle has a stable liquid level, the sampling precision at the sampling port is improved, and the water quality detection efficiency and the detection precision are further improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a water quality detection water storage tank. Background Art

[0002] The process of monitoring and testing water quality usually involves sampling the water to be tested, and the final test results are achieved through multi-index testing of micro-sampling sampling water droplets. During the sampling process, it is difficult to perform micro-sampling directly in rivers, seas, lakes and ponds, so it is necessary to take a portion of the water to be tested and put it into a container before micro-sampling. The problem is that if the water to be tested is left in the container for a long time, the water quality will change, affecting the test results; if the water to be tested is quickly sampled after entering the container, the flowing or shaking water will affect the sampling volume, and will also affect the values of the water quality test indicators. Therefore, the sampling efficiency of existing water quality testing devices is low, and the sampling accuracy is low, resulting in low water quality testing efficiency and low accuracy. Utility Model Content

[0003] The purpose of the utility model is to provide a water quality detection water storage tank for solving the problems of low efficiency and low sampling accuracy of water quality detection.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Water quality testing water storage tank, including:

[0006] A box body, wherein the box body is provided with a water inlet, a water outlet and a sampling port;

[0007] a first water baffle and a second water baffle, wherein the first water baffle and the second water baffle are arranged in the box body, and along the length direction of the box body, the first water baffle and the second water baffle divide the internal space of the box body into three cavities that are connected in sequence, and the water inlet, the sampling port and the water outlet are respectively connected in sequence to the three cavities;

[0008] A water retaining pipe is provided at the sampling port and protrudes from the surface of the water tank.

[0009] In some embodiments, the water retaining pipe is a tapered tube structure that is smaller at the top and larger at the bottom.

[0010] In some embodiments, the first water baffle is arranged on the top wall of the box body and extends toward the bottom wall of the box body, a first connecting channel is formed between the first water baffle and the bottom wall of the box body, a first cavity is formed between the first water baffle and the side wall of the box body, the water inlet is arranged on a side wall of the box body forming the first cavity, and the first water baffle is arranged opposite to the water inlet direction of the water inlet.

[0011] In some embodiments, the second water baffle is arranged on the bottom wall of the box body and extends toward the top wall of the box body, a second connecting channel is formed between the second water baffle and the top wall of the box body, the second water baffle is spaced apart from the first water baffle to form a second cavity, and a third cavity is formed between the second water baffle and the side wall of the box body away from the first water baffle, and the water outlet is arranged at the bottom of the third cavity.

[0012] In some embodiments, an end portion of the second water baffle facing the second communicating channel is provided with a rough surface to reduce water surface tension.

[0013] In some embodiments, the first water baffle and the second water baffle are parallel to each other, and both side edges of the first water baffle and the second water baffle perpendicular to the water inlet direction are respectively connected to two opposite side walls of the water tank.

[0014] In some embodiments, along the height direction of the water tank, the top end height of the second water baffle is higher than the bottom end height of the first water baffle.

[0015] In some embodiments, the sampling port is provided on the top wall of the water storage tank and faces the cavity between the first water baffle and the second water baffle.

[0016] In some embodiments, the water inlet is provided on the side wall of the water tank, a distance L1 is provided between the water inlet and the bottom wall of the water tank, a distance L2 is provided between the water inlet and the top wall of the water tank, and L1>L2.

[0017] In some embodiments, the inner wall of the water storage tank, the surfaces of the first water baffle and the second water baffle are all provided with a protective layer.

[0018] In some embodiments, the protective layer is a silver ion coating, a copper alloy coating, a titanium dioxide coating, or a chromium coating.

[0019] In some embodiments, the water tank is further provided with a drain outlet, which is provided on the bottom wall of the water tank between the first water baffle and the second water baffle.

[0020] In some embodiments, water pipes are provided at the water inlet, the water outlet and the drain outlet, and control valves are provided on the water pipes.

[0021] Beneficial effects of the utility model:

[0022] The water quality detection water storage tank provided by the utility model divides the internal space of the box into three cavities connected in sequence by arranging a first water baffle and a second water baffle in the box body. The water inlet, the sampling port and the water outlet are respectively connected to the three cavities in sequence, and then along the length direction of the box body, the three cavities are respectively used for water intake, sampling and water discharge, which is conducive to obtaining a stable liquid level in the cavity corresponding to the middle sampling port, effectively avoiding the influence of water intake and water outlet on the liquid level at the sampling port, and is conducive to improving the sampling amount control at the sampling port, thereby improving the water quality detection efficiency and detection accuracy; the water baffle plays the role of blocking water, thereby further reducing the influence of liquid droplet splashing on the sampling amount, and improving the accuracy of the sampling amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a water quality detection water storage tank provided by an embodiment of the utility model;

[0024] Figure 2 This is a schematic cross-sectional view of a water storage tank for water quality testing provided by an embodiment of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of a water retaining pipe in a water storage tank for water quality testing provided by an embodiment of the present utility model;

[0026] Figure 4 It is a schematic diagram of the usage status of the water quality detection water storage tank provided by an embodiment of the utility model.

[0027] In the picture:

[0028] 1. Box; 11. Water inlet; 12. Water outlet; 13. Sampling port; 14. First water baffle; 15. Second water baffle; 16. Drain outlet; 17. Water pipe; 171. First drainage channel; 172. Second drainage channel;

[0029] 2. Water retaining pipe; 3. Bracket; 4. Sampling device; 5. Water quality detection module. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0031] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0034] The present invention provides a water quality testing water storage tank for temporary water storage for micro sampling. Figure 1 and Figure 2As shown, the water quality detection water storage tank includes a box body 1 and a water retaining pipe 2. The box body 1 is provided with a water inlet 11, a water outlet 12 and a sampling port 13. A first water retaining plate 14 and a second water retaining plate 15 are provided in the box body 1. Along the length direction (X direction) of the box body 1, the first water retaining plate 14 and the second water retaining plate 15 divide the internal space of the box body 1 into three cavities that are connected in sequence. The water inlet 11, the sampling port 13 and the water outlet 12 are connected in sequence to the three cavities, and then the three cavities are respectively used for water intake, sampling and water discharge. The sampling device 4 is used for sampling. Micro-sampling is performed at the sampling port 13, which effectively avoids the influence of water inlet and outlet on the liquid level at the sampling port 13. A stable liquid level is easily obtained at the sampling port 13, which is beneficial to controlling the sampling amount at the sampling port 13. After the water inlet 11 is closed to the water inlet, the cavity between the first water baffle 14 and the second water baffle 15 in the box body 1 can obtain a stable liquid level as soon as possible, avoiding the influence of the long liquid stabilization time on the sampling efficiency, and the liquid stays in the box body 1 for a short time, which is beneficial to obtaining real water quality index data, thereby further improving the water quality detection efficiency and detection accuracy.

[0035] Preferably, the water retaining tube 2 is a conical tube structure that is small at the top and large at the bottom. During sampling, the sampling device 4 contacts and seals the top end of the water retaining tube 2 to perform sampling. Since the water retaining tube 2 protrudes from the surface of the housing 1, even if there is unstable water splashing in the second cavity corresponding to the drain outlet 16, the water retaining tube 2 can also play a role in blocking water, thereby further reducing the impact of liquid droplet splashing on the sampling amount and improving the accuracy of the sampling amount. The smaller the diameter of the end of the water retaining tube 2 that is away from the housing 1 and the longer the length, the better the effect of preventing water splashing. Among them, when sampling, the sampling device 4 cooperates with the drain outlet 16 or the top structure of the water retaining tube 2 on the drain outlet 16 to achieve plug-in sealing. In some embodiments, a sealing ring can be provided on the sampling device 4 to enhance the sealing effect.

[0036] In some embodiments, the first water baffle 14 is arranged on the top wall of the box body 1 and extends toward the bottom wall of the box body 1, a first connecting channel is formed between the bottom end of the first water baffle 14 and the bottom wall of the box body 1, and a first cavity is formed between the first water baffle 14 and the side wall of the box body 1. The water inlet 11 is arranged on a side wall of the box body 1 of the first cavity, and the first water baffle 14 is arranged opposite the water inlet direction of the water inlet 11.

[0037] Combine Figure 1 and Figure 2In this embodiment, a box body 1 having a rectangular structure is used, and a first water baffle 14 and a second water baffle 15 are spaced apart along the X direction inside the box body 1, wherein the first water baffle 14 is suspended, forming a first connecting channel between the first water baffle 14 and the bottom wall of the box body 1, a first cavity is formed between the first water baffle 14 and the left side wall of the box body 1, a second cavity is formed between the first water baffle 14 and the second water baffle 15, and a third cavity is formed between the second water baffle 15 and the right side wall of the box body 1. The first connecting channel connects the first cavity and the second cavity. After entering along the X direction, the water from the water inlet 11 on the left side wall can directly hit the first water baffle 14. The first water baffle 14 prevents the water flow entering from the water inlet 11 from disturbing and splashing the inside of the box body 1. The first water baffle 14 is suspended, which increases the distance between the first connecting channel and the sampling port 13, and can reduce the disturbing effect of the incoming water on the liquid surface in the second cavity.

[0038] In some embodiments, the second water baffle 15 is arranged on the bottom wall of the box body 1 and extends toward the top wall of the box body 1. A second connecting channel is formed between the top end of the second water baffle 15 and the top wall of the box body 1. The second water baffle 15 and the first water baffle 14 are spaced apart to form a second cavity. A third cavity is formed between the second water baffle 15 and the side wall of the box body 1 away from the first water baffle 14. The water outlet 12 is arranged at the bottom of the third cavity.

[0039] Combine Figure 1 and Figure 2 The bottom end of the second water baffle 15 is fixedly connected to the bottom wall of the box body 1 and extends upward. The second water baffle 15 does not contact the top wall of the box body 1 to form a second communicating channel. The second communicating channel connects the second cavity and the third cavity. It can be understood that the height of the second water baffle 15 is equal to the height of the liquid level in the second cavity in the box body 1. After the water flows into the box body 1 through the water inlet 11, it first collides with the first water baffle 14 to slow down and flows downward along the first water baffle 14 to the first circulation channel and then to the second cavity. When the liquid level of the liquid in the second cavity reaches the height of the second water baffle 15, the water passes over the top of the second water baffle 15 and flows into the third cavity along the second communicating channel, and flows out through the water outlet 12 at the bottom end of the third cavity. It can be understood that during the above-mentioned water flow process, the liquid in the second cavity is minimally affected by the water inlet and outlet, thereby avoiding the influence of the water flow velocity of the water inlet 11 and the water outlet 12 on the stability of the liquid level in the second cavity, and thus when sampling at the sampling port 13, it is beneficial to control the sampling volume to improve the sampling accuracy.

[0040] In some embodiments, the end of the second water baffle 15 facing the second communication channel is provided with a rough surface to reduce the surface tension of water.

[0041] It can be understood that the second water baffle 15 is used to control the liquid level of the second cavity in the middle. Liquid that exceeds the height of the second water baffle 15 will enter the third cavity through the second water baffle 15 and flow out through the water outlet 12. The liquid level during the process of water passing through the box 1 and the liquid level after the water inlet is suddenly stopped will be significantly higher than the height of the second water baffle 15 by about 3mm due to the effect of surface tension. This embodiment can reduce the surface tension of the liquid by setting the end of the second water baffle 15 to a rough surface, thereby ensuring that there is always a certain liquid level in the box 1 to ensure the accuracy of sampling. Specifically, the rough surface can be a serrated irregular structure or a variable inclined surface structure set on the top end face of the second water baffle 15, so as to reduce the surface tension of water, make the liquid level more stable, and thus stabilize the sampling volume.

[0042] In some embodiments, the first water baffle 14 and the second water baffle 15 are parallel to each other, and both side edges of the first water baffle 14 and the second water baffle 15 perpendicular to the water inlet direction are respectively connected to two opposite side walls of the box body 1 .

[0043] Combine Figure 1 and Figure 2 The first water baffle 14 and the second water baffle 15 are both extended along the Z direction. The two side edges of the first water baffle 14 along the Y direction are connected to the side walls of the box body 1, such as by welding or integral molding, so that the liquid can only be guided to flow through the first circulation channel and the second circulation channel, thereby controlling the direction of the water flow, which is beneficial to controlling the stability of the water flow in the box body 1 and reducing splashing. The first water baffle 14 and the second water baffle 15 are arranged parallel to each other, so that the first water baffle 14 can be perpendicular to the direction of the incoming water flow, thereby minimizing the speed of the water inlet, and the second water baffle 15 is parallel to the first water baffle 14, which is beneficial to processing and molding, and is beneficial to controlling the liquid level height in the box body 1.

[0044] In some embodiments, the first water baffle 14 and the second water baffle 15 at least partially overlap along the height direction of the box body 1 .

[0045] like Figure 3 As shown, the first water baffle 14 and the second water baffle 15 overlap in the Z direction, thereby slowing down the flowing liquid in the second cavity to obtain a stable liquid surface. The more the first water baffle 14 and the second water baffle 15 overlap in the Z direction, the greater the distance between the first circulation channel and the second circulation channel, the smoother the liquid flow in the second cavity, and the easier it is to obtain an accurate sampling amount.

[0046] In some embodiments, the sampling port 13 is disposed on the top wall of the box body 1 and faces the second cavity between the first water baffle 14 and the second water baffle 15 .

[0047] like Figure 3As shown, the sampling port 13 is arranged facing the top of the second cavity, so that the sampling device 4 samples the liquid in the second cavity, avoiding the influence of liquid splashing and flow rate on sampling, and facilitating obtaining a more accurate sampling amount.

[0048] In some embodiments, the water inlet 11 is provided on the side wall of the box body 1 , and there is a distance L1 between the water inlet 11 and the bottom wall of the box body 1 , and there is a distance L2 between the water inlet 11 and the top wall of the box body 1 , where L1>L2.

[0049] like Figure 2 As shown, a water inlet 11 is provided on the left side wall of the box body 1, and the water inlet direction of the water inlet 11 is perpendicular to the side wall of the box body 1 along the X direction. When the structure and processing permit, the water inlet 11 is provided as close to the top wall of the box body 1 as possible to increase the distance between the water inlet 11 and the first connecting channel, so that the liquid entering the water inlet 11 is decelerated by the first water baffle 14, flows along the first water baffle 14, and then changes direction through the first circulation channel to enter the second cavity, further reducing the liquid flow rate and reducing the flow velocity difference on both sides of the first circulation channel, so that the liquid can smoothly enter the second cavity.

[0050] In some embodiments, the inner wall of the casing 1, the surfaces of the first water baffle 14 and the second water baffle 15 are provided with a protective layer. The protective layer can inhibit the liquid from getting wet on the inner wall of the casing 1, the surface of the first water baffle 14 and the surface of the second water baffle 15, and play an antibacterial and antibacterial role. Preferably, the hydrophobic coating is a silver ion coating, a copper alloy coating, a titanium dioxide coating or a chromium coating. The protective layer can be formed by spraying or mixing with a coating. In some embodiments, antibacterial and antibacterial substances (such as silver ions) can be directly added to the raw materials of the injection molding materials of the casing 1, the first water baffle 14 and the second water baffle 15 to perform antibacterial and antibacterial.

[0051] In some embodiments, the box body 1 is further provided with a drain port 16 , which is provided on the bottom wall of the box body 1 between the first water baffle 14 and the second water baffle 15 .

[0052] like Figure 2 As shown, the drain port 16 is in a sealed closed state during the sampling process. After the sampling is completed, the drain port 16 is opened to drain the liquid in the box body 1.

[0053] In some embodiments, water pipes 17 are provided at the water inlet 11 , the water outlet 12 and the drain outlet 16 , and control valves are provided on the water pipes 17 .

[0054] Combine Figure 1 and Figure 3As shown, the box body 1 is fixedly arranged on the bracket 3, which is convenient for setting the height of the box body 1 and improving the firmness of the box body 1. During the sampling process, it is necessary to control the flow of the water inlet 11 and the water outlet 12. By setting a water pipe 17 at the water inlet 11 and setting a control valve on the water pipe 17 (such as an on-off solenoid valve for controlling the on-off of the pipeline), the water flow velocity and flow rate of the incoming water can be controlled. Among them, the drain port 16 and the water outlet 12 are provided with a first drainage channel 171 and a second drainage channel 172 that are vertically connected to each other. Taking the water outlet 12 as an example, the first drainage channel 171 is arranged in the vertical direction and is connected to the box body 1 at the water outlet 12. The second drainage channel 172 is used to connect and install the water pipe 17 to drain and recover the liquid to a designated location, simplifying the installation of the water pipe 17 and reducing the construction difficulty. The side wall of the box body 1 where the water inlet 11 is set has a large construction space, and the water pipe 17 can be directly connected and installed.

[0055] like Figure 4 As shown, the water quality detection water storage tank provided by the present invention is used. When micro-sampling is performed, the sampling device 4 is first inserted into the sealed box body 1 at the sampling port 13; the drain port 16 of the box body 1 is sealed, the water outlet 12 is open, the control valve on the water pipe 17 at the water inlet 11 is opened, and water is filled into the box body 1 through the water inlet 11; the water flows through the water inlet 11 and the first circulation channel to the second cavity in sequence, and can flow into the third cavity along the second circulation channel to end the water inlet; the sampling rod of the sampling device 4 contacts the liquid in the second cavity and samples, and transfers the sampled water to the water quality detection module 5 for water quality analysis. The water quality detection module 5 can use a test paper, which contains a solid indicator. When the sample liquid droplets are dropped on the test paper, a color reaction occurs. Different components in the water will result in different color reaction results. Water quality index detection can be obtained by color recognition. Among them, color recognition can be collected by taking pictures with a camera, and this embodiment is not limited to this.

[0056] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Water quality testing water tank, characterized in that, include: A box body (1), wherein the box body (1) is provided with a water inlet (11), a water outlet (12) and a sampling port (13); A first water baffle (14) and a second water baffle (15), wherein the first water baffle (14) and the second water baffle (15) are arranged in the box body (1), and along the length direction of the box body (1), the first water baffle (14) and the second water baffle (15) divide the internal space of the box body (1) into three cavities that are connected in sequence, and the water inlet (11), the sampling port (13) and the water outlet (12) are respectively connected in sequence to the three cavities; A water retaining pipe (2) is provided at the sampling port (13) and protrudes from the surface of the box body (1).

2. The water quality testing water storage tank according to claim 1, characterized in that: The water retaining pipe (2) is in a tapered tube structure that is smaller at the top and larger at the bottom.

3. The water quality testing water storage tank according to claim 1, characterized in that: The first water baffle (14) is arranged on the top wall of the box body (1) and extends toward the bottom wall of the box body (1); a first connecting channel is formed between the first water baffle (14) and the bottom wall of the box body (1); a first cavity is formed between the first water baffle (14) and the side wall of the box body (1); the water inlet (11) is arranged on a side wall of the box body (1) forming the first cavity; the first water baffle (14) is arranged facing the water inlet direction of the water inlet (11).

4. The water quality testing water storage tank according to claim 3, characterized in that: The second water baffle (15) is arranged on the bottom wall of the box body (1) and extends toward the top wall of the box body (1); a second communicating channel is formed between the second water baffle (15) and the top wall of the box body (1); the second water baffle (15) and the first water baffle (14) are spaced apart to form a second cavity; a third cavity is formed between the second water baffle (15) and a side wall of the box body (1) away from the first water baffle (14); and the water outlet (12) is arranged at the bottom of the third cavity.

5. The water quality testing water storage tank according to claim 4, characterized in that: The end of the second water baffle (15) facing the second communicating channel is provided with a rough surface to reduce water surface tension.

6. The water quality testing water storage tank according to claim 3, characterized in that: The first water baffle (14) and the second water baffle (15) are parallel to each other, and the two side edges of the first water baffle (14) and the second water baffle (15) perpendicular to the water inlet direction are respectively connected to two opposite side walls of the box body (1).

7. The water quality testing water storage tank according to claim 1, characterized in that: Along the height direction of the box body (1), the top end height of the second water baffle (15) is higher than the bottom end height of the first water baffle (14).

8. The water quality testing water storage tank according to claim 4, characterized in that: The sampling port (13) is provided on the top wall of the box body (1) and faces the second cavity between the first water baffle (14) and the second water baffle (15).

9. The water quality testing water storage tank according to claim 1, characterized in that: The water inlet (11) is provided on the side wall of the box body (1), and a distance L1 is provided between the water inlet (11) and the bottom wall of the box body (1), and a distance L2 is provided between the water inlet (11) and the top wall of the box body (1), where L1>L2.

10. The water quality testing water storage tank according to claim 1, characterized in that: The inner wall of the box body (1), the surfaces of the first water baffle (14) and the second water baffle (15) are all provided with a protective layer.

11. The water quality testing water storage tank according to claim 10, characterized in that: The protective layer is a silver ion coating, a copper alloy coating, a titanium dioxide coating or a chromium coating.

12. The water quality testing water storage tank according to claim 1, characterized in that: The box body (1) is also provided with a drain outlet (16), and the drain outlet (16) is provided on the bottom wall of the box body (1) between the first water baffle (14) and the second water baffle (15).

13. The water storage tank for water quality testing according to claim 12, characterized in that: The water inlet (11), the water outlet (12) and the drain outlet (16) are all provided with water pipes (17), and the water pipes (17) are provided with control valves.