Waste liquid interface box and waste discharge system

Abstract

The utility model provides a waste liquid connector box and a waste discharge system, and relates to the technical field of waste discharge. The waste liquid connector box comprises a box body and a plurality of waste discharge pipelines. Wherein a plurality of waste liquid connectors are formed in one side of the box body, and the waste discharge pipelines are in one-to-one correspondence with the waste liquid connectors. On the basis, the waste discharge pipeline penetrates through the waste liquid connector to be inserted into the box body and is used for being selectively communicated with the conveying pipeline extending into the box body. On the basis, compared with the prior art, a plurality of liquid discharge ports are formed in the wall at intervals, a plurality of waste discharge pipelines are integrated in a closed space, so that a worker can perform centralized inspection and maintenance at one place, and does not perform scattered inspection along the whole pipeline. On the basis, the inspection time and labor can be saved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste discharge, and in particular, to a waste liquid interface box and a waste discharge system. Background Art

[0002] In the chemical industry system, it is crucial to design an efficient waste liquid collection and recycling system. Generally, in order to adapt to different types of chemical waste liquids, the system is designed with a split pipeline layout, and a collection hole corresponding to the tank truck is set on the wall every about three meters.

[0003] However, through research by the inventor, it is found that once a liquid leakage or other safety hazards occur, the staff needs to check each section of the pipeline one by one to determine the specific faulty pipeline. In this way, it will increase the inspection time and labor intensity of the staff and increase the labor cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a waste liquid interface box and a waste discharge system, which can quickly respond and accurately identify the faulty pipeline, reduce the inspection time and labor intensity of the staff, and facilitate the centralized monitoring of the waste discharge pipeline transmission, reduce the setting of monitoring components such as liquid leakage sensors, reduce costs, and improve the maintenance efficiency.

[0005] The beneficial effects of the embodiments of the utility model include:

[0006] The present application provides a waste liquid interface box and a waste discharge system. The waste liquid interface box includes a box body and a plurality of waste discharge pipelines. Among them, a plurality of waste liquid interfaces are opened on one side of the box body, and the waste discharge pipelines correspond to the waste liquid interfaces one by one. On this basis, the waste discharge pipelines pass through the waste liquid interfaces and are inserted into the box body for selectively communicating with the conveying pipelines extending into the box body. Based on this, compared with the prior art in which a plurality of liquid discharge ports are spacedly opened on the wall, the present application integrates a plurality of waste discharge pipelines in a closed space, so that the staff can perform centralized inspection and maintenance at one location instead of performing scattered inspections along the entire pipeline. Based on this, the inspection time and labor can be saved, and the maintenance efficiency can be improved. Description of the Drawings

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1 It is a schematic structural diagram of the waste liquid interface box provided by the embodiment of the present utility model;

[0009] Figure 2 Another structural schematic diagram of the waste liquid interface box provided by the embodiment of the present utility model;

[0010] Figure 3 Provided by the embodiment of the present utility model Figure 1 Enlarged schematic diagram of part A in

[0011] Figure 4 Schematic diagram of the waste discharge pipe provided by the embodiment of the present utility model.

[0012] Icons: 10 - waste liquid interface box; 100 - box body; 110 - waste liquid interface; 300 - waste discharge pipe; 310 - pipe body; 330 - first control valve; 350 - second control valve; 370 - quick - insertion buckle; 510 - touch screen; 530 - exhaust device; 550 - negative pressure gauge; 570 - gas purging device; 590 - cleaning device; 710 - liquid leakage sensor; 730 - liquid discharge pipe; 750 - waste discharge valve. Specific embodiments

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0015] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0017] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0018] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0019] The present utility model provides a waste discharge system, which includes a tank body and a waste liquid interface box 10, and the tank body is connected to the waste liquid interface box 10. It can be understood that based on the setting of this waste liquid interface box 10, the discharge of various chemicals can be independently controlled, so as to selectively and efficiently transfer the corresponding types of chemicals to the corresponding tank trucks, avoiding the situation that multiple tank trucks are simultaneously around the waste discharge system, thereby correspondingly avoiding the problems of space density and complex management. And, in case of an emergency such as liquid leakage, the staff only needs to check the waste liquid interface box 10, and can achieve the technical effects of rapid response, accuracy and accurate identification.

[0020] Next, the specific structures of the various components of the waste liquid interface box 10 provided in this embodiment and the corresponding relationships between them will be described in detail. Figure 1 For the structural schematic diagram of the waste liquid interface box 10 provided in the embodiment of the present utility model, please refer to Figure 1 The present application provides a waste liquid interface box 10, which includes a box body 100 and a plurality of waste discharge pipes 300.

[0021] Among them, a plurality of waste liquid interfaces 110 are provided on one side of the box body 100, and the waste discharge pipelines 300 correspond to the waste liquid interfaces 110 one by one. It should be noted that the one-to-one correspondence between the waste discharge pipelines 300 and the waste liquid interfaces 110 here specifically refers to the one-to-one correspondence of position and quantity. That is to say, in this application, by setting a plurality of waste discharge pipelines 300, each waste discharge pipeline 300 carries different chemicals. For example, one waste discharge pipeline 300 corresponds to organic chemical a, one waste discharge pipeline 300 corresponds to organic chemical b, and so on.

[0022] On this basis, the waste discharge pipeline 300 passes through the waste liquid interface 110 and inserts into the interior of the box body 100 for selectively communicating with the conveying pipeline extending into the interior of the box body 100. It can be understood that the conveying pipeline here specifically refers to the conveying pipeline of the tank truck. The staff can connect the corresponding waste discharge pipeline 300 and the corresponding conveying pipeline, so as to achieve the technical effect of independently conveying the corresponding chemical to the corresponding tank truck. Moreover, the connection between the waste discharge pipeline 300 and the conveying pipeline is always located inside the box body 100, and the staff can check for liquid leakage by checking the box body 100, improving the response and recognition accuracy rate, and ensuring the smooth progress of the waste discharge work.

[0023] Specifically, in actual applications, multiple conveying pipelines can be respectively connected to multiple waste discharge pipelines 300 for simultaneous transmission; preferably, in order to improve the safety of chemical waste liquid transmission, the tank truck conveying pipeline and the waste discharge pipeline 300 can be transmitted separately. For example, when it is necessary to convey organic chemical a to the tank truck, select the waste discharge pipeline 300 carrying organic chemical a to communicate with the tank truck, and the waste discharge pipelines 300 carrying other chemicals are all in a disconnected state from the conveying pipeline. After a period of time, the tank truck full of organic chemical a leaves, drive the tank truck that needs to convey organic chemical b to the designated position, and select the waste discharge pipeline 300 carrying organic chemical b to communicate with the tank truck. And so on, by staggering the time periods, all the chemicals can be respectively conveyed to the corresponding tank trucks.

[0024] Therefore, compared with the prior art, the waste liquid interface box 10 of the embodiment of this application integrates a plurality of waste discharge pipelines 300 and arranges them in the same box body 100, so that the staff can conduct centralized inspection and maintenance at one location, rather than decentralized inspection along the entire pipeline, which can save inspection time and labor and improve maintenance efficiency. Moreover, the above integrated box body 100 helps to reduce the impact of the leakage of the waste discharge pipeline 300 on the environment, can minimize the potential harm of the waste liquid to the surrounding environment, and is also convenient for centralized monitoring of the safety performance of a plurality of waste discharge pipelines 300 such as liquid leakage, reducing the setting of monitoring components to achieve rapid detection and response to leakage.

[0025] In addition, it should be noted that in some embodiments, the top wall or side wall of the box body 100 can be set as a folding or sliding door structure, which can correspondingly achieve the technical effect of facilitating the extension of the conveying channel into the interior of the box body 100 and connecting with the corresponding waste discharge pipe 300. This is not limited in this application.

[0026] Since the types of chemicals can be specifically divided into organic chemicals, acidic chemicals, and alkaline chemicals, the waste liquid interface box 10 can also be correspondingly set into two models: an organic waste liquid interface box and an acid-base waste liquid interface box. Considering the different chemical properties of acidic, alkaline, and organic chemicals, the organic waste liquid interface box and the acid-base waste liquid interface box can also be made of different materials accordingly.

[0027] For example, in some embodiments, the box body 100 is made of PVC material, and the waste discharge pipe 300 is made of PFA material. It should be noted that the waste liquid interface box 10 made of the above materials is an acid-base waste liquid interface box. PVC is short for polyvinyl chloride, which has good tolerance to acids and alkalis, while PFA is perfluoroalkyl ethylene, polymerized from tetrafluoroethylene monomers, and is known for its high chemical stability, excellent electrical insulation, and low friction coefficient.

[0028] In other embodiments, both the box body 100 and the waste discharge pipe 300 are made of SUS material. It should be noted that the waste liquid interface box 10 made of the above materials is an organic waste liquid interface box 10. SUS usually refers to stainless steel material, which is an iron-based alloy with good corrosion resistance.

[0029] In addition, it should be noted that since a reaction will occur between acidic chemicals and alkaline chemicals, the chemical waste liquid in the same waste liquid interface box 10 made of PVC material needs to ensure that it is all acidic chemicals or all alkaline chemicals, that is, a waste liquid interface box 10 cannot achieve the simultaneous transfer of acidic chemicals and alkaline chemicals.

[0030] Please refer to Figure 2 , Figure 2 , which is another structural schematic diagram of the waste liquid interface box 10 provided by the embodiment of the present invention. To improve the space utilization rate of the box body 100, reduce the size of the box body 100, and save the manufacturing cost of the box body 100, multiple waste discharge pipes 300 are arranged in a rectangular array in the box body 100. Specifically, as Figure 2 shown, the four waste liquid interfaces 110 are arranged in a 2x2 pattern, that is, two rows and two columns of opening arrangements, so as to make full use of the space of the box body 100 in the length direction and the width direction. And based on the above orderly arrangement, it is also possible to avoid the winding of the waste discharge pipes 300 connected to the waste discharge interfaces, thereby correspondingly simplifying the management process, installation process, and subsequent maintenance and repair work.

[0031] Please refer to Figure 3 , Figure 3 the enlarged schematic view of part A in Figure 1 provided by the embodiment of the present utility model. Next, the specific structure of the box body 100 will be described in detail. In some embodiments, the waste liquid interface box 10 further includes a gas purging device 570 and a cleaning device 590 located inside the box body 100 to ensure the cleanliness of the box body 100 before and after use and avoid the residue of organic chemicals, which may affect the chemicals transported to the tank truck subsequently.

[0032] Among them, the cleaning device 590 is used to spray cleaning solution into the box body 100 to clean the inner wall of the box body 100, and the gas purging device 570 is used to jet air into the box body 100 to purge the inner wall of the box body 100. When applied to the actual scenario, generally, the cleaning device 590 is first used to spray the cleaning solution to wash down the residues adhering to the inner wall of the box body 100, and then the gas purging device 570 is used to purge to ensure that there is no residue and to ensure the dryness of the inner wall of the box body 100. Of course, it can be understood that the specific use of the cleaning device 590 and the gas purging device 570 can be selected according to actual needs.

[0033] As Figure 3 shown, both the gas purging device 570 and the cleaning device 590 jet obliquely upward along the direction of the arrow shown in the figure to ensure sufficient cleaning. Of course, it can be understood that the purging and water spraying directions of the gas purging device 570 and the cleaning device 590 can be set according to actual needs. For example, the gas purging device 570 and the cleaning device 590 can be set to have adjustable jet directions, so as to improve the cleaning and purging effects on the box body 100. In addition, as an optional embodiment, the gas purging device 570 can be a jet nozzle or a gas gun, and the purging gas can be set as nitrogen or compressed air, and the cleaning device 590 can be a water spraying nozzle or a water gun, which is not limited in this application.

[0034] Please refer to Figure 1 again. To improve the safety of the waste liquid interface box 10, the waste liquid interface box 10 further includes a liquid leakage sensor 710 and a liquid discharge pipeline 730. Among them, the liquid leakage sensor 710 is located on the side wall of the box body 100 and is at a certain distance from the bottom wall of the box body 100. The liquid discharge pipeline 730 is arranged at the bottom of the box body 100, so as to ensure that the leaked liquid inside the box body 100 can flow naturally to the lowest point and be discharged, and utilize the gravity principle to improve the waste discharge rate and efficiency. And, a waste discharge valve 750 is further provided on the liquid discharge pipeline 730, and the waste discharge valve 750 is used to control the on-off of the liquid discharge pipeline 730 according to the detection of the liquid leakage sensor 710 to achieve automatic liquid discharge control.

[0035] Based on the above settings, if there is a leakage such as liquid leakage during the chemical transfer process, the liquid leakage sensor 710 is triggered to issue an alarm. The staff can judge whether there is a poor connection between the waste discharge pipe 300 and the conveying pipe by observing the box body 100. At this time, the staff immediately stops the machine, opens the box body 100, and separates the waste discharge pipe 300 and the conveying pipe; then closes the box body 100, opens the waste discharge valve 750 at the bottom wall of the box body 100, so that the leaked liquid can naturally flow to the lowest point and be discharged, and by using the principle of gravity, the waste discharge can be quickly realized.

[0036] In some embodiments, to improve the safety of the waste liquid interface box 10 during operation, the waste liquid interface box 10 further includes an exhaust device 530 and a negative pressure gauge 550, and both the exhaust device 530 and the negative pressure gauge 550 are located at the top of the box body 100.

[0037] Among them, the exhaust device 530 for exhausting can be specifically set as a vacuum pumping device, which is used to make the gas pressure inside the box body 100 lower than the gas pressure of the external environment, so as to realize the evacuation operation of the box body 100. Since gas always diffuses from the high-pressure area to the low-pressure area, the above exhaust device 530 can effectively prevent the volatile chemicals inside the box body 100 from directly leaking into the external environment, causing potential safety hazards.

[0038] The negative pressure gauge 550 is used to detect the vacuum degree inside the box body 100. Specifically, the negative pressure gauge 550 can be used to detect the vacuum degree of the exhaust pipe communicating with the inside of the box body 100 by the exhaust device 530. When the box body 100 is closed, the negative pressure gauge 550 generally shows a negative pressure, which means that the exhaust device 530 is working properly and the box body 100 is well sealed. Correspondingly, the exhaust device 530 can be electrically connected to the negative pressure gauge 550 to facilitate judging the evacuation status inside the box body 100 according to the detected value of the negative pressure gauge 550.

[0039] For the exhaust device 530, during the waste liquid transfer process, the exhaust device 530 can be in an open state, which can prevent chemicals from volatilizing into the external environment when there is a leakage inside the box body 100; further, when the liquid leakage occurs and the box body 100 is closed, the exhaust device 530 is in an open state to realize the vacuum pumping of the box body 100, further preventing the volatilized chemicals from leaking out and improving safety; at this time, it can be judged whether the exhaust device 530 is working and whether the box body 100 is well sealed through the detection of the negative pressure gauge 550.

[0040] Please refer to Figure 4 , Figure 4Schematic diagram of the waste discharge pipeline 300 provided by the embodiments of the present utility model. Next, the waste discharge pipeline 300 provided by the present application will be explained in detail. As an alternative embodiment, the waste discharge pipeline 300 includes a pipeline body 310, a first control valve 330 and a second control valve 350 provided on the pipeline body 310. The first control valve 330 and the second control valve 350 are located inside the box body 100.

[0041] Among them, the pipeline body 310 passes through the waste liquid interface 110 and inserts into the inside of the box body 100. The first control valve 330 is used to control the on-off of the pipeline body 310 under normal working conditions, and the second control valve 350 is used to control the on-off of the pipeline body 310 when the first control valve 330 fails. Moreover, both the first control valve 330 and the second control valve 350 can also be arranged in the inner cavity of the box body 100 to avoid being damaged due to the influence of the external environment.

[0042] It can be understood that when the first control valve 330 is in a normal working state, the second control valve 350 is in an open state all the time, and the first control valve 330 is the core valve for controlling the on-off of the pipeline body 310. When the first control valve 330 is in a failure state, such as when the first control valve 330 has a leakage problem or needs to be repaired or replaced, the staff can close the second control valve 350 to emergency-close the pipeline body 310.

[0043] Specifically, the first control valve 330 is a pneumatic ball valve. The pneumatic ball valve can be opened or closed quickly, reducing the stagnation time of the fluid in the pipeline. It is especially suitable for the waste liquid interface box 10 of the present application that requires quick switching to improve the transfer efficiency.

[0044] The second control valve 350 is a manual ball valve. There can be two manual ball valves, which are respectively arranged on both sides of the first control valve 330, so as to emergency-close the pipeline body 310 when the pneumatic ball valve fails. After ensuring that the waste liquid pipeline is in a safe condition, the staff can repair or replace the manual ball valve.

[0045] The box body 100 is also provided with a touch screen 510. The touch screen 510 can be electrically connected to the waste discharge valve 750 and the pneumatic ball valve to realize automatic control, reduce manual operation and improve the transmission efficiency. In addition, to further improve the transmission efficiency, a pump body for providing power for the waste liquid transmission can be arranged on the pipeline body 310, and the pump body can also be electrically connected to the touch screen 510 to realize automatic switching.

[0046] Furthermore, in order to improve the installation efficiency of the waste discharge pipe 300 and the delivery pipe, a quick-insert buckle 370 is provided at one end of the waste discharge pipe 300 located inside the box 100, and the quick-insert buckle 370 is used to connect with the delivery pipe. It can be understood that the quick-insert buckle 370 is generally normally closed. When in use, the staff first opens the quick-insert buckle 370, and then connects the delivery pipe of the corresponding tank truck with the quick-insert buckle 370.

[0047] It should be emphasized that the quick-insert buckle 370 has an automatic locking function, which can ensure a stable connection with the delivery pipeline. Based on the setting of the quick-insert buckle 370, it can be quickly connected and disconnected with the delivery pipeline without complicated fastening processes and tools, which can greatly save disassembly and assembly time.

[0048] Taking this embodiment as an example, the present application provides a waste liquid interface box 10, and its specific workflow and working principle are as follows:

[0049] When it is necessary to transport a certain chemical waste liquid collected in the tank, the staff drives the tank truck to the designated location. After obtaining approval from the project engineer, the staff uses the key to open the blocked door panel from one side of the box 100, opens the quick-insert buckle 370, and connects the delivery pipe on the tank truck to the quick-insert buckle 370. After checking whether the quick-insert buckle 370 is automatically locked, the door panel is closed.

[0050] Afterwards, the staff member operates the touch screen 510 to control the pneumatic ball valve and the pump body to open, so as to transfer the designated chemical waste liquid to the corresponding tank truck. When the tank truck is almost full, the touch screen 510 receives the feedback signal sent by the tank truck, controls the pneumatic ball valve and the pump body to close, separates the quick-insert buckle 370 and the delivery pipeline, and completes the delivery.

[0051] In summary, the present application provides a waste liquid interface box 10 and a waste discharge system, wherein the waste liquid interface box 10 includes a box body 100 and a plurality of waste discharge pipes 300. Among them, a plurality of waste liquid interfaces 110 are provided on one side of the box body 100, and the waste discharge pipes 300 correspond to the waste liquid interfaces 110 one by one. On this basis, the waste discharge pipes 300 are inserted into the interior of the box body 100 through the waste liquid interfaces 110, and are used to selectively communicate with the conveying pipe extending into the interior of the box body 100. Based on this, compared with the prior art, by providing a plurality of drainage ports at intervals on the wall, the present application integrates a plurality of waste discharge pipes 300 in a closed space, so that the staff can conduct centralized inspection and maintenance at one location, rather than conducting dispersed inspections along the entire pipeline. Based on this, inspection time and labor can be saved, and maintenance efficiency can be improved.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waste liquid interface box, characterized in that: include: A box body (100), wherein a plurality of waste liquid interfaces (110) are provided on one side of the box body (100); A plurality of waste discharge pipes (300), each of the waste discharge pipes (300) corresponding to the waste liquid interface (110) one by one, and the waste discharge pipes (300) passing through the waste liquid interface (110) are inserted into the interior of the box (100) for selectively communicating with a delivery pipe extending into the interior of the box (100).

2. The waste liquid interface box according to claim 1, characterized in that: The waste discharge pipe (300) comprises a pipe body (310) and a first control valve (330) and a second control valve (350) arranged on the pipe body (310), wherein the first control valve (330) is used to control the on-off of the pipe body (310) under normal working conditions, and the second control valve (350) is used to control the on-off of the pipe body (310) when the first control valve (330) fails.

3. The waste liquid interface box according to claim 2, characterized in that: The first control valve (330) is a pneumatic ball valve, and the second control valve (350) is two and is a manual ball valve, and the two manual ball valves are respectively arranged on both sides of the first control valve (330).

4. The waste liquid interface box according to claim 1, characterized in that: A quick-insert buckle (370) is provided at one end of the waste discharge pipe (300) located inside the box (100), and the quick-insert buckle (370) is used to connect with the delivery pipe.

5. The waste liquid interface box according to claim 1, characterized in that: The waste liquid interface box (10) further comprises a liquid leakage sensor (710) and a liquid discharge pipe (730); the liquid discharge pipe (730) is arranged at the bottom of the box body (100) and is provided with a waste discharge valve (750); the waste discharge valve (750) is used to control the on-off of the liquid discharge pipe (730) according to the detection of the liquid leakage sensor (710).

6. The waste liquid interface box according to claim 1, characterized in that: The waste liquid interface box (10) further comprises an exhaust device (530) and a negative pressure gauge (550), wherein the exhaust device (530) and the negative pressure gauge (550) are both located at the top of the box body (100), and the exhaust device (530) is used for exhausting air, and the negative pressure gauge (550) is used for detecting the vacuum degree inside the box body (100).

7. The waste liquid interface box according to claim 1, characterized in that: The waste liquid interface box (10) also includes a gas purge device (570) and a cleaning device (590) located inside the box body (100), wherein the cleaning device (590) is used to spray a cleaning solution into the box body (100) to clean the inner wall of the box body (100), and the gas purge device (570) is used to spray air into the box body (100) to purge the inner wall of the box body (100).

8. The waste liquid interface box according to claim 1, characterized in that: The plurality of waste liquid interfaces (110) are arranged in a rectangular array on the box (100).

9. The waste liquid interface box according to any one of claims 1 to 8, characterized in that: The box body (100) is made of PVC material, and the waste discharge pipe (300) is made of PFA material; or, the box body (100) and the waste discharge pipe (300) are both made of SUS material.

10. A waste discharge system, characterized in that: It comprises a tank body and the waste liquid interface box (10) according to any one of claims 1 to 9, and the tank body is connected to the waste liquid interface box (10).

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