Laboratory wastewater recycling device

Abstract

The application relates to the field of laboratory instruments and provides a laboratory wastewater recycling device. The laboratory wastewater recycling device comprises a water inlet pipeline, a water outlet pipeline, a water collecting tank and a wastewater treatment module. The water inlet pipeline is communicated with a water inlet of the water collecting tank, the water outlet pipeline is communicated with a water outlet of the water collecting tank, the wastewater treatment module is arranged in the water collecting tank, the water outlet pipeline comprises a first water outlet pipeline, a second water outlet pipeline, a third water outlet pipeline and a water outlet main pipeline, the first ends of the first water outlet pipeline, the second water outlet pipeline and the third water outlet pipeline are respectively communicated with three water outlets of the water collecting tank, and the second ends of the first water outlet pipeline, the second water outlet pipeline and the third water outlet pipeline are all communicated with one end of the water outlet main pipeline. A first water quality detection module is arranged on the water inlet pipeline, a first water flow regulating valve is arranged on the first water outlet pipeline, a second water flow regulating valve is arranged on the second water outlet pipeline, and the two water flow regulating valves adjust the valve opening degrees thereof based on the wastewater pollution grades detected by the first water quality detection module.

Description

Technical Field

[0001] This application relates to the field of laboratory instruments, and more particularly to a laboratory wastewater recycling device. Background Technology

[0002] In the field of laboratory wastewater recycling, existing technologies mainly rely on collection devices to treat used laboratory water in a unified manner. However, such devices generally have significant drawbacks: firstly, their water quality assurance capabilities are insufficient, as traditional devices often employ a crude "unified collection - single disinfection" treatment model, failing to address different levels of pollution in the wastewater. While installing multiple wastewater treatment devices within the laboratory to treat different types of wastewater can solve these problems to some extent, such devices result in excessive space occupation and poor practicality. Utility Model Content

[0003] This application provides a laboratory wastewater recycling device to solve the problem of poor treatment effect of laboratory wastewater in the prior art and improve the treatment effect of wastewater with different pollution levels.

[0004] A laboratory wastewater recycling device according to a first aspect of this application includes an inlet pipe, an outlet pipe, a collection tank, and a wastewater treatment module. The inlet pipe is connected to the inlet of the collection tank, and the outlet pipe is connected to the outlet of the collection tank. The wastewater treatment module is installed inside the collection tank. The outlet pipe includes a first outlet pipe, a second outlet pipe, a third outlet pipe, and a main outlet pipe. The first ends of the first, second, and third outlet pipes are respectively connected to the three outlets of the collection tank, and the second ends of the first, second, and third outlet pipes are all connected to one end of the main outlet pipe.

[0005] A first water quality detection module is installed on the inlet pipe, a first water flow regulating valve is installed on the first outlet pipe, and a second water flow regulating valve is installed on the second outlet pipe. Both the first and second water flow regulating valves are configured to adjust their valve opening based on the wastewater pollution level detected by the first water quality detection module.

[0006] According to one embodiment of this application, the water collection tank includes a first cavity, a second cavity, and a third cavity that are independent of each other, and the wastewater treatment module includes a first treatment mechanism, a second treatment mechanism, and a third treatment mechanism, wherein the first treatment mechanism, the second treatment mechanism, and the third treatment mechanism are respectively disposed in the first cavity, the second cavity, and the third cavity;

[0007] The first treatment unit, the second treatment unit, and the third treatment unit are used to treat wastewater of different pollution levels.

[0008] According to one embodiment of this application, along the flow path of the wastewater, the first cavity, the second cavity, and the third cavity are connected in series, so that the wastewater flows through the first cavity, the second cavity, and the third cavity in sequence; the first treatment mechanism, the second treatment mechanism, and the third treatment mechanism are configured to selectively activate based on the pollution level of the wastewater; or, along the flow path of the wastewater, the first cavity, the second cavity, and the third cavity are connected in parallel, so that the wastewater flows through one of the first cavity, the second cavity, and the third cavity; the first treatment mechanism, the second treatment mechanism, and the third treatment mechanism are configured to activate when wastewater flows through their respective cavities.

[0009] According to one embodiment of this application, based on the parallel arrangement of the first cavity, the second cavity, and the third cavity, the water inlet pipeline includes a first water inlet pipe, a second water inlet pipe, a third water inlet pipe, and a main water inlet pipe. The first ends of the first water inlet pipe, the second water inlet pipe, and the third water inlet pipe are all connected to one end of the main water inlet pipe, and the second ends of the first water inlet pipe, the second water inlet pipe, and the third water inlet pipe are respectively connected to the first cavity, the second cavity, and the third cavity.

[0010] According to one embodiment of this application, a reversing valve is provided at the connection between the main water inlet pipe and the first water inlet pipe, the second water inlet pipe, and the third water inlet pipe; or, valves for controlling the on / off of the pipelines are provided on the first water inlet pipe, the second water inlet pipe, and the third water inlet pipe.

[0011] According to one embodiment of this application, the first processing unit includes an adsorption unit and an electrocatalytic oxidation device, the second processing unit includes a filtration unit and an ozone generator, and the third processing unit includes an ultraviolet lamp.

[0012] According to one embodiment of this application, a second water quality detection module is also provided on the main water outlet pipe.

[0013] According to one embodiment of this application, a protective coating is provided on the inner wall of the water collection tank.

[0014] According to one embodiment of this application, the laboratory wastewater recycling device further includes an overflow pipe connected to the overflow port of the collection tank.

[0015] According to one embodiment of this application, the laboratory wastewater recycling device further includes a booster pump installed on the main outlet pipe.

[0016] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0017] The laboratory wastewater recycling device in this application, by installing a first flow regulating valve and a second flow regulating valve on the first and second outlet pipes respectively, adjusts the outflow velocity of wastewater with different pollution levels, automatically extending the treatment time for high-pollution wastewater and avoiding the problem of poor purification effect due to short treatment time. By installing the first and second flow regulating valves on the first and second outlet pipes respectively, different flow velocities can be achieved in the three outlet pipes to adapt to wastewater with different pollution levels.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the laboratory wastewater recycling device provided in this application.

[0021] Figure label:

[0022] 1. Water inlet pipe; 11. First water inlet pipe; 12. Second water inlet pipe; 13. Third water inlet pipe; 14. Main water inlet pipe; 15. First water quality detection module; 16. Reversing valve; 2. Water outlet pipe; 21. First water outlet pipe; 211. First water flow regulating valve; 22. Second water outlet pipe; 221. Second water flow regulating valve; 23. Third water outlet pipe; 24. Main water outlet pipe; 25. Second water quality detection module; 26. Booster pump; 3. Water collection tank; 31. First cavity; 32. Second cavity; 33. Third cavity; 4. Wastewater treatment module; 41. First treatment mechanism; 42. Second treatment mechanism; 43. Third treatment mechanism; 5. Overflow pipe; 6. Return water pipe. Detailed Implementation

[0023] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0024] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0026] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0028] A laboratory wastewater recycling device according to an embodiment of the first aspect of this application, such as Figure 1As shown, the laboratory wastewater recycling device includes an inlet pipe 1, an outlet pipe 2, a collection tank 3, and a wastewater treatment module 4. The inlet pipe 1 is connected to the inlet of the collection tank 3, and the outlet pipe 2 is connected to the outlet of the collection tank 3. The collection tank 3 is equipped with the wastewater treatment module 4. The outlet pipe 2 includes a first outlet pipe 21, a second outlet pipe 22, a third outlet pipe 23, and a main outlet pipe 24. The first ends of the first outlet pipe 21, the second outlet pipe 22, and the third outlet pipe 23 are respectively connected to the outlet of the collection tank 3. The three outlets are connected, and the second ends of the first outlet pipe 21, the second outlet pipe 22 and the third outlet pipe 23 are all connected to one end of the main outlet pipe 24. A first water quality detection module 15 is installed on the inlet pipe 1, a first water flow regulating valve 211 is installed on the first outlet pipe 21 and a second water flow regulating valve 221 is installed on the second outlet pipe 22. Both the first water flow regulating valve 211 and the second water flow regulating valve 221 are set to adjust their valve opening based on the wastewater pollution level detected by the first water quality detection module 15.

[0029] By constructing a graded intelligent flow control system, the problem of insufficient processing accuracy in traditional devices is effectively solved. The first water quality detection module 15 of the inlet pipe 1 identifies the wastewater pollution level (e.g., light, moderate, heavy) in real time and feeds the signal back to the first and second flow regulating valves 221. Differential flow rate control is achieved by dynamically adjusting the valve opening: for wastewater with a high pollution level, the wastewater flows through the "collection tank 3 - first outlet pipe 21" path, where the first flow regulating valve 211 on the first outlet pipe 21 is set to a smaller opening (e.g., opening ≤ 30%) to reduce the outflow velocity of the treated wastewater and extend the residence time of the wastewater in the collection tank 3, ensuring that the wastewater treatment module 4 has sufficient time to degrade pollutants; for... For moderately polluted wastewater, the wastewater flows through the "collection tank 3 - second outlet pipe 22" path. The second flow regulating valve 221 on the second outlet pipe 22 is set to a medium opening (e.g., 40% ≤ opening ≤ 80%) to appropriately reduce the outflow velocity of the treated wastewater and appropriately extend the residence time of the wastewater in the collection tank 3, ensuring that the wastewater treatment module 4 has sufficient time to degrade pollutants. For lightly polluted wastewater, the wastewater flows through the "collection tank 3 - third outlet pipe 23" path. The third outlet pipe 23 does not have a flow regulating valve, allowing the treated wastewater to flow out at a faster speed, improving recovery efficiency. This "pollution level - flow rate - treatment time" linkage control mechanism avoids the problem of incomplete purification of highly polluted wastewater due to insufficient treatment time (e.g., heavy metal ion residue can be reduced by more than 60%). Simultaneously, the diversion design of the three outlet pipes 2 allows wastewater of different pollution levels to be initially isolated in the physical flow path, reducing the risk of cross-contamination.

[0030] The first flow regulating valve 211 and the second flow regulating valve 221 can be further adjusted according to the pollution level of the wastewater. For example, the heavily polluted wastewater can be further divided into heavy level 1, heavy level 2, and heavy level 3. Heavy level 1 corresponds to a 10% opening of the first flow regulating valve 211, heavy level 2 corresponds to a 20% opening of the first flow regulating valve 211, and heavy level 3 corresponds to a 30% opening of the first flow regulating valve 211.

[0031] The laboratory wastewater recycling device in this application, by respectively installing a first flow regulating valve 211 and a second flow regulating valve 221 on the first outlet pipe 21 and the second outlet pipe 22, adjusts the outflow velocity of wastewater with different pollution levels, automatically extending the treatment time for high-pollution wastewater and avoiding the problem of poor purification effect due to short treatment time. By installing the first flow regulating valve 211 and the second flow regulating valve 221 on the first outlet pipe 21 and the second outlet pipe 22, the three outlet pipes 2 can have different flow velocities to adapt to wastewater with different pollution levels.

[0032] According to one embodiment of this application, such as Figure 1 As shown, the water collection tank 3 includes a first cavity 31, a second cavity 32, and a third cavity 33 that are independent of each other. The wastewater treatment module 4 includes a first treatment mechanism 41, a second treatment mechanism 42, and a third treatment mechanism 43, which are respectively disposed in the first cavity 31, the second cavity 32, and the third cavity 33. The first treatment mechanism 41, the second treatment mechanism 42, and the third treatment mechanism 43 are used to treat wastewater of different pollution levels.

[0033] This device significantly improves the targeting and efficiency of wastewater treatment through its modular design of independent chambers and tiered treatment mechanisms. The physically isolated first chamber 31, second chamber 32, and third chamber 33 prevent cross-contamination between wastewaters of different pollution levels. Combined with the water quality detection module of the inlet pipe 1 and the first and second flow regulating valves 211 and 221, it achieves precise matching between pollution levels and treatment units.

[0034] The independent chamber design also allows each processing unit to operate in parallel, significantly improving processing efficiency compared to traditional single-chamber devices. Furthermore, the modular structure facilitates maintenance and upgrades; if a processing mechanism fails, that chamber can be shut down for repair without affecting the operation of other units, enhancing the equipment's usability.

[0035] In practical applications, emergency diversion channels can be added between the chambers. When the treatment load of a certain chamber is too high (such as a surge in heavily polluted water), some wastewater can be diverted to adjacent chambers for auxiliary treatment, thereby improving the system's resilience.

[0036] According to one embodiment of this application, along the flow path of the wastewater, the first chamber 31, the second chamber 32, and the third chamber 33 are connected in series, so that the wastewater flows through the first chamber 31, the second chamber 32, and the third chamber 33 sequentially; the first treatment mechanism 41, the second treatment mechanism 42, and the third treatment mechanism 43 are configured to selectively activate based on the pollution level of the wastewater (not shown in the figure); or, along the flow path of the wastewater, the first chamber 31, the second chamber 32, and the third chamber 33 are connected in parallel, such as... Figure 1 As shown, wastewater flows through one of the first cavity 31, the second cavity 32, and the third cavity 33; the first treatment mechanism 41, the second treatment mechanism 42, and the third treatment mechanism 43 are configured to open when wastewater flows through their respective cavities.

[0037] By designing both series and parallel cavity connection methods, a hierarchical processing system that combines flexibility and efficiency was constructed, effectively solving the problems of single processing mode and poor adaptability of traditional devices.

[0038] In series mode, wastewater flows sequentially through the first chamber 31, the second chamber 32, and the third chamber 33. Each treatment unit can dynamically combine treatment steps according to the pollution level to form a "gradient purification" effect. For example, for heavily polluted wastewater, the first treatment unit 41 with the strongest purification capacity is activated (the second treatment unit 42 and the third treatment unit 43 are not working); for moderately polluted wastewater, the second treatment unit 42 with relatively strong purification capacity is activated (the first treatment unit 41 and the third treatment unit 43 are not working); for lightly polluted wastewater, the third treatment unit 43 with moderate purification capacity is activated (the first treatment unit 41 and the second treatment unit 42 are not working).

[0039] Of course, "selective activation of treatment facilities based on the pollution level of wastewater" can also mean: for heavily polluted wastewater, the first treatment facility 41, the second treatment facility 42, and the third treatment facility 43 are activated simultaneously; for moderately polluted wastewater, the second treatment facility 42 and the third treatment facility 43 are activated simultaneously; and for lightly polluted wastewater, the third treatment facility 43 is activated.

[0040] In parallel mode, the three chambers operate independently and in parallel. Wastewater enters the corresponding chamber directly according to its pollution level (which can be determined in real time by a sensor installed on the inlet pipe 1). For example, heavily polluted wastewater enters the first chamber 31, and lightly polluted wastewater enters the third chamber 33. This forms a rapid treatment channel for "specialized treatment of specific pollutants" to improve treatment efficiency. The treatment cycle for lightly polluted wastewater is significantly shortened, and the treatment of heavily polluted wastewater is more targeted.

[0041] The modular nature of the parallel structure also facilitates equipment expansion (such as adding a fourth chamber to deal with radioactive wastewater), and the faulty chamber can be isolated separately during maintenance without affecting the operation of other channels, greatly improving system reliability.

[0042] The series mode focuses on deep purification and is suitable for scenarios with complex pollution; the parallel mode focuses on rapid diversion and is suitable for laboratories with primarily single pollution. Through the coordination of the switching valve group and the control system (such as the electromagnetic directional valve 16 combined with the PID algorithm), the device can automatically switch between the two modes, balancing processing accuracy and efficiency.

[0043] According to one embodiment of this application, the first cavity 31, the second cavity 32, and the third cavity 33 are arranged in parallel, such as... Figure 1 As shown, the water inlet pipe 1 includes a first water inlet pipe 11, a second water inlet pipe 12, a third water inlet pipe 13, and a main water inlet pipe 14. The first ends of the first water inlet pipe 11, the second water inlet pipe 12, and the third water inlet pipe 13 are all connected to one end of the main water inlet pipe 14. The second ends of the first water inlet pipe 11, the second water inlet pipe 12, and the third water inlet pipe 13 are respectively connected to the first cavity 31, the second cavity 32, and the third cavity 33.

[0044] The first processing unit 41 includes an adsorption unit and an electrocatalytic oxidation device; the second processing unit 42 includes a filtration unit and an ozone generator; and the third processing unit 43 includes an ultraviolet lamp.

[0045] The design of parallel chambers and independent inlet pipes 1 solves the problems of low efficiency and insufficient adaptability caused by mixed treatment in traditional devices. The main inlet pipe 14 connects to three independent inlet pipes, each corresponding to a chamber with a different treatment capacity: the first inlet pipe 11 is for heavily polluted wastewater (e.g., wastewater containing heavy metals), connected to the electrocatalytic oxidation device (e.g., electrochemical-resin deep purification system, three-dimensional electrode + chelating resin) in the first chamber 31, for efficient purification of heavily polluted wastewater; the second inlet pipe 12 is for moderately polluted wastewater (e.g., contact water with low-toxic reagents), connected to the membrane separation-ozone combined treatment module (ultrafiltration membrane + ozone aeration) in the second chamber 32, with the flow rate controlled by a water flow regulating valve to ensure that the organic matter degradation rate is stable at over 95%; the third inlet pipe 13 is for lightly polluted wastewater (e.g., pure water, ultrapure water, condensate), connected to the rapid filtration and disinfection unit (e.g., ultraviolet lamp) in the third chamber 33, achieving immediate treatment upon collection. This parallel structure allows each chamber to process wastewater of different grades in parallel, significantly improving the wastewater treatment speed, and the physically isolated flow channel design effectively avoids the risk of cross-contamination.

[0046] The one-to-one correspondence between the inlet pipe 1 and the cavity, combined with the real-time pollution level determination of the first water quality detection module 15 at the front end (such as conductivity, TOC, and heavy metal ion sensor linkage), realizes a fully automated closed loop of "detection-diversion-treatment": when a certain type of pollutant is detected to exceed the standard, the system can automatically select the corresponding cavity to treat the wastewater through the electromagnetic reversing valve 16.

[0047] According to one embodiment of this application, a reversing valve 16 is provided at the connection between the main water inlet pipe 14 and the first water inlet pipe 11, the second water inlet pipe 12, and the third water inlet pipe 13, such as... Figure 1 As shown; or, valves (not shown in the figure) for controlling the on / off state of the pipelines are installed on the first inlet pipe 11, the second inlet pipe 12, and the third inlet pipe 13. The reversing valve 16 can be an electromagnetic reversing valve 16.

[0048] By installing reversing valves 16 or independently controlled valves on the main inlet pipe 14 and branch inlet pipes 1, an intelligent diversion system based on "pollution level - flow channel control - cavity matching" is constructed, achieving precise graded treatment of wastewater at the hardware level. The centralized control mode of the reversing valve 16 can quickly switch the main water flow direction based on real-time data (such as conductivity, TOC, and heavy metal ion concentration) from the first water quality detection module 15 (e.g., directly guiding heavily polluted wastewater to the deep treatment unit of the first cavity 31).

[0049] If an independent valve (such as an electric ball valve or butterfly valve) is used for each inlet pipe, more precise flow ratio control can be achieved. That is, the flow rate of wastewater entering the corresponding cavity for purification can be controlled to further improve the wastewater purification effect.

[0050] According to one embodiment of this application, such as Figure 1 As shown, a second water quality detection module 25 is also installed on the main water outlet pipe 24. The second water quality detection module 25 is located upstream of the booster pump 26.

[0051] A second water quality detection module 25 is installed in the main outlet pipe 24 to perform final water quality verification on the treated recycled water, forming a complete closed loop of "pretreatment-graded treatment-terminal detection". This module monitors key indicators such as conductivity, TOC, and microorganisms in real time. If any parameter is detected to be substandard (e.g., copper ion residue > 0.01 mg / L after treatment of heavily polluted wastewater in the first chamber 31), the system will automatically trigger an early warning.

[0052] According to one embodiment of this application, a protective coating is provided on the inner wall of the water collection tank 3.

[0053] The protective coating can be made of materials such as nano-ceramics or polytetrafluoroethylene to resist strong acids and alkalis (e.g., no corrosion within a pH range of 1-14), organic solvents (e.g., no swelling after 24 hours of immersion in acetone or xylene), and microbial adhesion (reducing surface bacterial adhesion rate by 90%), thus extending the tank's lifespan. The smooth, anti-slip coating effectively reduces sludge deposition, ensuring long-term reliable operation of the collection tank 3. The insulating properties of the anti-slip coating also prevent electrochemical corrosion, especially when treating wastewater containing heavy metal ions, avoiding secondary water pollution caused by electrochemical reactions between the collection tank 3 material and pollutants, ensuring stable and compliant recycled water quality.

[0054] The inlet pipe 1 and outlet pipe 2 can be made of corrosion-resistant materials (such as PVDF pipes).

[0055] According to one embodiment of this application, such as Figure 1 As shown, the laboratory wastewater recycling device also includes an overflow pipe 5, which is connected to the overflow port of the collection tank 3. Figure 1 The diagram only schematically shows the overflow pipe 5. In actual applications, the number of overflow pipes 5 can correspond to the number of cavities. The overflow pipe 5 can be set at a relatively high position so that when the wastewater level inside the cavity is high, it can flow out through the overflow pipe 5.

[0056] The overflow pipe 5 is designed to collect water tank 3 to form a safety redundancy protection mechanism. When the inflow rate suddenly increases (such as accidental water leakage of experimental equipment) or the drainage of the treatment module is blocked due to filter blockage, the wastewater exceeding the capacity of the water tank will be diverted to the emergency collection pool or external wastewater treatment system through the overflow pipe 5 to avoid wastewater overflow causing safety accidents such as laboratory floor corrosion and microbial leakage.

[0057] According to one embodiment of this application, the laboratory wastewater recycling device further includes a booster pump 26 installed on the main outlet pipe 24.

[0058] Installing a booster pump 26 on the main outlet pipe 24 can effectively solve the problem of insufficient water pressure during the transportation of recycled water, ensuring the pressure requirements of different reuse scenarios (such as water supply for high-rise laboratories and water for high-pressure cleaning equipment). The booster pump 26 can be linked with the second water quality detection module 25. It starts booster transportation after the water quality meets the standards; if the test fails, the pump remains shut down to ensure that unqualified recycled water does not flow out accidentally. Alternatively, a return pipe 6 can be installed on the outlet pipe 2, connecting the booster pump 26 and the second water quality detection module 25. When unqualified recycled water is detected, the booster pump 26 stops, and the return pipe 6 is opened, allowing the unqualified recycled water to return to the inlet pipe 1 (before the first water quality detection module 15) for re-purification.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. A laboratory wastewater recycling device, comprising an inlet pipe (1), an outlet pipe (2), a collection tank (3), and a wastewater treatment module (4), wherein the inlet pipe (1) is connected to the inlet of the collection tank (3), the outlet pipe (2) is connected to the outlet of the collection tank (3), and the wastewater treatment module (4) is disposed inside the collection tank (3), characterized in that, The water outlet pipeline (2) includes a first water outlet pipe (21), a second water outlet pipe (22), a third water outlet pipe (23), and a main water outlet pipe (24). The first ends of the first water outlet pipe (21), the second water outlet pipe (22), and the third water outlet pipe (23) are respectively connected to the three water outlets of the water collection tank (3). The second ends of the first water outlet pipe (21), the second water outlet pipe (22), and the third water outlet pipe (23) are all connected to one end of the main water outlet pipe (24). The inlet pipe (1) is equipped with a first water quality detection module (15), the first outlet pipe (21) is equipped with a first water flow regulating valve (211), and the second outlet pipe (22) is equipped with a second water flow regulating valve (221). Both the first water flow regulating valve (211) and the second water flow regulating valve (221) are configured to adjust their valve opening based on the wastewater pollution level detected by the first water quality detection module (15).

2. The laboratory wastewater recycling device according to claim 1, characterized in that, The water collection tank (3) includes a first cavity (31), a second cavity (32), and a third cavity (33) that are independent of each other. The wastewater treatment module (4) includes a first treatment mechanism (41), a second treatment mechanism (42), and a third treatment mechanism (43). The first treatment mechanism (41), the second treatment mechanism (42), and the third treatment mechanism (43) are respectively disposed in the first cavity (31), the second cavity (32), and the third cavity (33). The first treatment unit (41), the second treatment unit (42) and the third treatment unit (43) are used to treat wastewater of different pollution levels.

3. The laboratory wastewater recycling device according to claim 2, characterized in that, Along the flow path of the wastewater, the first cavity (31), the second cavity (32), and the third cavity (33) are connected in series, so that the wastewater flows through the first cavity (31), the second cavity (32), and the third cavity (33) in sequence; the first treatment mechanism (41), the second treatment mechanism (42), and the third treatment mechanism (43) are configured to be selectively activated based on the pollution level of the wastewater; or, Along the flow path of the wastewater, the first cavity (31), the second cavity (32) and the third cavity (33) are arranged in parallel, so that the wastewater flows through one of the first cavity (31), the second cavity (32) and the third cavity (33); the first treatment mechanism (41), the second treatment mechanism (42) and the third treatment mechanism (43) are configured to open when there is wastewater flowing through their respective cavities.

4. The laboratory wastewater recycling device according to claim 3, characterized in that, Based on the parallel arrangement of the first cavity (31), the second cavity (32) and the third cavity (33), the water inlet pipeline (1) includes a first water inlet pipe (11), a second water inlet pipe (12), a third water inlet pipe (13) and a main water inlet pipe (14). The first ends of the first water inlet pipe (11), the second water inlet pipe (12) and the third water inlet pipe (13) are all connected to one end of the main water inlet pipe (14). The second ends of the first water inlet pipe (11), the second water inlet pipe (12) and the third water inlet pipe (13) are respectively connected to the first cavity (31), the second cavity (32) and the third cavity (33).

5. The laboratory wastewater recycling device according to claim 4, characterized in that, A reversing valve (16) is provided at the connection between the main water inlet pipe (14) and the first water inlet pipe (11), the second water inlet pipe (12), and the third water inlet pipe (13); or, The first water inlet pipe (11), the second water inlet pipe (12) and the third water inlet pipe (13) are all equipped with valves for controlling the opening and closing of the pipeline.

6. The laboratory wastewater recycling device according to claim 2, characterized in that, The first processing unit (41) includes an adsorption unit and an electrocatalytic oxidation device, the second processing unit (42) includes a filtration unit and an ozone generator, and the third processing unit (43) includes an ultraviolet lamp.

7. The laboratory wastewater recycling device according to any one of claims 1 to 6, characterized in that, A second water quality detection module (25) is also installed on the main outlet pipe (24).

8. The laboratory wastewater recycling device according to any one of claims 1 to 6, characterized in that, The inner wall of the water collection tank (3) is provided with a protective coating.

9. The laboratory wastewater recycling device according to any one of claims 1 to 6, characterized in that, It also includes an overflow pipe (5), which is connected to the overflow port of the collection tank (3).

10. The laboratory wastewater recycling device according to any one of claims 1 to 6, characterized in that, It also includes a booster pump (26) installed on the main outlet pipe (24).

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