Separation of multiple sewage sources, system and method for separate quality drainage

Abstract

A multi-source sewage separation and quality drainage device, system and method, which is applied to a sewage discharge pipeline, and the sewage discharge pipeline is provided with at least two discharge sources and at least one first water outlet end, wherein the separation and quality drainage device comprises: at least one discharge inner pipe made of flexible material, the discharge inner pipe comprises opposite first and second ends, the first end is suitable for connecting one discharge source, and the second end is suitable for connecting one first water outlet end; an auxiliary outer pipe suitable for being sleeved outside the discharge inner pipe, the auxiliary outer pipe comprises opposite third and fourth ends, the third end is suitable for detachably connecting the first end of the discharge inner pipe, and the fourth end is suitable for detachably connecting the second end of the discharge inner pipe; wherein the auxiliary outer pipe is suitable for carrying the discharge inner pipe to extend from the discharge source, pass through the sewage discharge pipeline to the first water outlet end, and be drawn out from the sewage discharge pipeline under the condition that the discharge inner pipe is connected with the discharge source and the first water outlet end respectively.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of domestic sewage discharge, and in particular to a device, system and method for separating and discharging domestic sewage from different sources. BACKGROUND

[0002] The first step of resource utilization of domestic sewage is to achieve harmless treatment. In the related art, the feasible and mainstream technical means to achieve harmless treatment of domestic sewage is anaerobic treatment, such as septic tank, etc. The key point of such technology is to achieve harmless treatment of sewage through a certain residence time and a certain degree of anaerobic fermentation. However, the current indoor drainage mode limits the full realization of the concept of resource utilization of domestic sewage. According to the indoor drainage mode, the toilet wastewater and washing wastewater are mixed and discharged outside. This drainage mode has two problems: (1) A long hydraulic residence time is required to achieve harmless treatment of domestic sewage, which means that a large volume of treatment device is required. It is not practical to use a large volume device to meet the requirement of long residence time; (2) Toilet wastewater accounts for 20% of the total volume of domestic sewage, but contains 90% of nitrogen and phosphorus nutrients and 50% of organic matter, which is characterized by small volume, high concentration and strong fertilizer efficiency; washing wastewater accounts for 80% of the total volume of domestic sewage, and contains only 10% of nitrogen and phosphorus nutrients and 50% of organic matter, which is characterized by large volume, low concentration and weak fertilizer efficiency. It can be seen that the mixed drainage mode increases the difficulty of achieving harmless treatment of sewage, dilutes the fertilizer efficiency and concentration of sewage, reduces the resource properties of sewage, and hinders the reuse of sewage.

[0003] In order to solve the problem of resource utilization of domestic sewage caused by mixing and discharging sewage from different sources such as toilet wastewater and washing wastewater, there are three relatively mature solutions. Path one: mixed collection of domestic sewage, two / three-stage biological treatment, treated sewage meeting the harmless requirement, and then resource utilization or environmental discharge; Path two: indoor pipe reconstruction, changing the mixed drainage pipe of toilet wastewater and washing wastewater into source separation and quality drainage pipe to realize the separate collection of toilet wastewater and washing wastewater. Toilet wastewater is small in volume, so it is easy to ensure sufficient hydraulic residence time to achieve the goal of harmless treatment. Washing wastewater is slightly treated and then reused as water resource; Path three: replacing the toilet to realize separate collection and harmless treatment of toilet wastewater and on-site reuse, and washing wastewater is still discharged through the original mixed drainage pipe and slightly treated and then reused as water resource. However, the above three paths have corresponding disadvantages. Specifically, the construction cost and subsequent operation and maintenance cost of path one are high, and the two / three-stage treatment greatly weakens the resource properties of sewage; path two needs to destroy and restore the indoor floor, which has high labor cost and is difficult to implement due to the disturbance to the normal life of the residents; path three has similar difficulties as path two. SUMMARY

[0004] In view of this, the main purpose of the present application is to provide a multi-source sewage separation and quality drainage device, system and method, so as to at least partially solve at least one of the above-mentioned technical problems

[0005] To achieve the above-mentioned purpose, the technical solutions of the present application are as follows:

[0006] As an aspect of the present application, a multi-source sewage separation and quality drainage device is provided, which is applied to a sewage discharge pipeline, and the sewage discharge pipeline is provided with at least two discharge sources and at least one first water outlet end. The device comprises: at least one discharge inner pipe made of flexible material, the discharge inner pipe comprising opposite first and second ends, the first end being suitable for connecting one discharge source, and the second end being suitable for connecting one first water outlet end; and an auxiliary outer pipe suitable for being sleeved outside the discharge inner pipe, the auxiliary outer pipe comprising opposite third and fourth ends, the third end being suitable for detachably connecting the first end of the discharge inner pipe, and the fourth end being suitable for detachably connecting the second end of the discharge inner pipe; wherein the auxiliary outer pipe is suitable for carrying the discharge inner pipe to extend from the discharge source and pass through the sewage discharge pipeline, and in the case that the discharge inner pipe is connected with the discharge source and the first water outlet end respectively, the auxiliary outer pipe is suitable for being pulled out from the sewage discharge pipeline.

[0007] As another aspect of the present application, a multi-source sewage separation and quality drainage system is provided, which comprises: a sewage discharge pipeline located below the ground surface in a room, the sewage discharge pipeline being provided with at least two discharge sources and one first water outlet end; and at least one discharge inner pipe made of flexible material, the discharge inner pipe comprising opposite first and second ends, the first end being suitable for connecting one discharge source, and the second end being suitable for connecting the first water outlet end.

[0008] As still another aspect of the present application, a method for multi-source sewage separation and quality drainage using the above-mentioned separation and quality drainage device is provided, which comprises: without damaging the ground surface in the room and the sewage discharge pipeline, using the auxiliary outer pipe to carry the discharge inner pipe to extend from the discharge source and pass through the sewage discharge pipeline; connecting the first end of the discharge inner pipe with the discharge source, connecting the second end of the discharge inner pipe with the first water outlet end on the sewage discharge pipeline, and disconnecting the first end of the discharge inner pipe from the third end of the auxiliary outer pipe and the second end of the discharge inner pipe from the fourth end of the auxiliary outer pipe; pulling out the auxiliary outer pipe from the sewage discharge pipeline after the disconnection, to complete the separation of the discharge inner pipe and the auxiliary outer pipe; and discharging the sewage generated by at least one discharge source to at least one first water outlet end on the sewage discharge pipeline through the discharge inner pipe corresponding to the discharge source.

[0009] From the above technical solutions, the multi-source sewage separation and quality drainage device, system and method of the present application at least have one or part of the following beneficial effects:

[0010] According to the embodiment of the present application, the flexible material discharge inner tube can be guided through the sewage discharge pipeline by using the auxiliary outer tube, and the auxiliary outer tube can be pulled out after the discharge inner tube is connected to the discharge source and the water outlet, so that the sewage discharge between at least two discharge sources is separated. Thus, the separated and quality drainage of multiple sewage sources is realized at a low cost and a short construction period without damaging the sewage discharge pipeline.

[0011] The separated and quality drainage system of multiple sewage sources based on the embodiment of the present application can realize the separated discharge of the sewage from at least one of the at least two discharge sources to at least one first water outlet, so that the main obstacle of the resource utilization of domestic sewage is eliminated, and the development of the rural domestic sewage treatment and resource utilization is promoted. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic diagram of a prior art drainage pipeline structure;

[0013] Figure 2 is a side view of the separated and quality drainage device of multiple sewage sources according to the embodiment of the present application;

[0014] Figure 3 is a top view of Figure 2 ;

[0015] Figure 4 is a side view of the discharge inner tube in Figure 2 ;

[0016] Figure 5 is a side view of the auxiliary outer tube in Figure 2 ;

[0017] Figure 6 is a side view of the separated and quality drainage device of multiple sewage sources according to another embodiment of the present application;

[0018] Figure 7 is a bottom view of Figure 6 ;

[0019] Figure 8 is a side view of the separated and quality drainage system of multiple sewage sources according to the embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and in conjunction with specific embodiments. It should be noted that the relative terms such as "upper", "lower", "left", "right" and the like used in the present application only represent relative positional relationships, and are not used to limit the absolute positional relationships. In addition, for the convenience of description, in the following description, it can be known from the accompanying drawings of the present application that the separated and separated drainage device of the present application is described in the upper and lower positions in the illustrated placement manner.

[0021] For a typical indoor drainage pipe structure of a residence, the water outlets of a washbasin, a floor drain, a water-closet and the like are connected to the same outlet pipe through branch pipes, so as to realize the drainage of domestic sewage from the indoor to the outdoor. The outlet pipe and the branch pipes thereof are pre-buried in the ground below a bathroom during the construction of the house. The specific drainage structure is shown in Fig. 1, wherein the first drainage sources 120 include, for example, a washbasin or a floor drain for discharging washing wastewater, and the like, for example, 3 first drainage sources 120 can be connected to the sewage drainage pipe 140, i.e., the outlet pipe, through 3 first branch pipes 121-123, respectively; the second drainage sources 130 include, for example, a toilet for discharging toilet wastewater, and the like, for example, 1 second drainage source can be connected to the sewage drainage pipe 140 through a second branch pipe 131; the washing wastewater and the toilet wastewater and the like are collected at the sewage drainage pipe 140 and are transported to the common water outlet end 110, and the water outlet end 110 can be provided with a water treatment tank 111 and the like. Such a drainage pipe structure is difficult to effectively and resourcefully utilize the water outlets of the drainage sources with different characteristics. Figure 1

[0022] In order to realize the smooth and effective resourceful utilization of domestic sewage, it is necessary to separate and collect the toilet wastewater rich in nutrient elements and having a small water volume from the washing wastewater poor in nutrient elements and having a large water volume. In the process of realizing the concept of the present application, it is found that the installation of the separated and separated drainage device of multiple sewage sources of the present application in the sewage drainage pipe can realize the separated and separated drainage of multiple sewage sources at a low cost and a short construction period.

[0023] Specifically, according to some embodiments of the present application, a separated and separated drainage device of multiple sewage sources is provided. Figure 2 is a structural side view of the separated and separated drainage device of multiple sewage sources of the embodiments of the present application, Figure 3 is a top view of Figure 2 , Figure 4 is a side view of the discharge inner pipe in Figure 2 , Figure 5 is a side view of the auxiliary outer pipe in Figure 2 .

[0024] As shown in Figures 2 to 5 ​The separation and separation drainage device shown is applied to a sewage discharge pipeline. The sewage discharge pipeline is provided with at least two discharge sources and at least one first outlet. The separation and separation drainage device includes: at least one inner discharge pipe 210, which is made of flexible material and includes a first end and a second end opposite to each other. The first end is suitable for connecting to a discharge source, and the second end is suitable for connecting to a first outlet. An auxiliary outer pipe 220 is suitable for being sleeved on the outside of the inner discharge pipe 210. The auxiliary outer pipe 220 includes a third end and a fourth end opposite to each other. The third end is suitable for detachably connecting to the first end of the inner discharge pipe, and the fourth end is suitable for detachably connecting to the second end of the inner discharge pipe. The auxiliary outer pipe is suitable for carrying the inner discharge pipe from the discharge source into and through the sewage discharge pipeline to the first outlet, and for being pulled out of the sewage discharge pipeline when the inner discharge pipe is connected to both the discharge source and the first outlet.

[0025] According to an embodiment of the present invention, a discharge inner pipe is suitable for connection between a discharge source and a first outlet. Furthermore, two or more discharge inner pipes can be connected to the same or different first outlets. Thus, the number of discharge inner pipes does not exceed the number of discharge sources, for example, it can be 1, 2, 3, 4, or more than 5, and the number of first outlets does not exceed the number of discharge inner pipes, for example, it can be 1, 2, 3, 4, or more than 5. Specifically, the number of discharge inner pipes and first outlets can be determined according to the requirements of separation and fractionation.

[0026] According to an embodiment of the present invention, the first end of the inner discharge pipe 210 and the third end of the auxiliary outer pipe 220, and the second end of the inner discharge pipe 210 and the fourth end of the auxiliary outer pipe 220 are connected by a snap-fit ​​connection, which has the advantage of convenient installation and disassembly.

[0027] For example, such as Figures 2 to 5 As shown, the inner discharge pipe 210 may have hooks 211 at its first and second ends, and latches 221 may be provided at its third and fourth ends. The detachable connection between the inner discharge pipe 210 and the auxiliary outer pipe 220 is achieved through the engagement of the latches 221 and hooks 211. Alternatively, the positions of the hooks and latches between the inner discharge pipe 210 and the auxiliary outer pipe 220 can be interchanged.

[0028] Of course, it is not limited to this. As long as a detachable connection between the inner discharge pipe 210 and the auxiliary outer pipe 220 can be achieved, such as a clamp connection, the inner discharge pipe 210 can be flipped and fitted onto the auxiliary outer pipe 220, and the two can be tightly clamped together by clamps and locking bolts.

[0029] According to an embodiment of the present invention, the first end of the discharge inner pipe 210 and the discharge source, and the second end of the discharge inner pipe 210 and the first outlet end are tightly connected by a connecting joint.

[0030] Further, the discharge source can be a washbasin, floor drain, toilet, or the like, and a wastewater collection and treatment device or the like can be arranged at the first water outlet end. Therefore, the structure of the connecting structure can be selected according to the discharge source and the first water outlet end. For example, a fixed joint or the like for connecting a hose and a rigid pipe can be selected to tightly connect the first end of the discharge inner pipe 210 and a water outlet pipe of the discharge source, and the second end of the discharge inner pipe 210 and a water inlet pipe of the wastewater collection and treatment device, so as to prevent wastewater leakage.

[0031] According to an embodiment of the present application, further optionally, the first end of the discharge inner pipe 210 and the discharge source, and the second end of the discharge inner pipe 210 and the first water outlet end are detachably connected. Thus, after the discharge inner pipe 210 is installed on the discharge source and the first water outlet end, it can be freely detached, cleaned, and reinstalled.

[0032] According to an embodiment of the present application, further optionally, a lock catch is arranged at the first water outlet end, so that the lock hook arranged at the second end of the discharge inner pipe 210 can also be connected to the lock catch of the first water outlet end to achieve detachable connection, and also to strengthen the connection. Similarly, the positions of the lock catch and the lock hook between the second end of the discharge inner pipe 210 and the first water outlet end can be interchanged.

[0033] According to an embodiment of the present application, the discharge inner pipe 210 is made of a flexible material and has a certain elasticity, for example, latex, PVC (soft), nylon, or the like. In the case that no wastewater flows in the interior of the discharge inner pipe 210, the cross section of the discharge inner pipe 210 is naturally flat. In the case that wastewater flows in the interior of the discharge inner pipe 210, the discharge inner pipe 210 can expand under the pressure of the wastewater flow, and can restore to flat under the action of negative pressure after the wastewater flow and its own attractive force. Here, "flat" means that the discharge inner pipe is shrunk but not completely close; "its own attractive force" mainly refers to the restoring force after expansion, i.e., elastic force.

[0034] Through the above configuration of the discharge inner pipe 210, in the case that no wastewater flows in the interior of the discharge inner pipe, the discharge inner pipe almost does not occupy the drainage space of the wastewater discharge pipe, i.e., it is beneficial to make other discharge inner pipes or wastewater discharge pipelines in the drainage state to smoothly drain.

[0035] According to an embodiment of the present application, the maximum cross-sectional area of the discharge inner pipe 210 after expansion can be 10% to 25% of the cross-sectional area of the wastewater discharge pipeline, for example, 10%, 15%, 20%, 25%, or the like. Thus, the smooth drainage of the discharge inner pipe itself and other discharge inner pipes and wastewater discharge pipelines can be considered. Further preferably, the number of discharge inner pipes in the wastewater discharge pipeline is 1 to 3, which can better meet the needs of both separation and smooth drainage.

[0036] According to the embodiment of the present application, in order to realize the function of guiding the installation of the discharge inner tube 210 by the auxiliary outer tube 220, the auxiliary outer tube should have a rigidity greater than that of the discharge inner tube, and a rigid bendable material such as PVC (rigid) can be used.

[0037] Figure 6 is a side view of the multi-source sewage separation and quality drainage device according to another embodiment of the present application; Figure 7 is Figure 6 is a bottom view of

[0038] The multi-source sewage separation and quality drainage device according to another embodiment of the present application is similar to the multi-source sewage separation and quality drainage device shown in Figures 2 to 5 , the difference mainly lies in that, as shown in Figure 6 and Figure 7 , the multi-source sewage separation and quality drainage device further comprises a rolling ball 230 installed on the fourth end of the auxiliary outer tube 220 through a loading shaft 231, and is suitable for guiding the auxiliary outer tube 220 to pass through the sewage discharge pipeline in a rolling manner. Through the above-mentioned arrangement of the rolling ball, the auxiliary outer tube 220 can be smoothly guided to pass through the sewage discharge pipeline even if the sewage discharge pipeline is bent. Further optionally, the diameter of the rolling ball 230 is slightly smaller than that of the auxiliary outer tube 220.

[0039] Without damaging the indoor floor and without replacing the discharge source such as the toilet, the multi-source sewage separation and quality drainage device according to the present application shown in Figures 2 to 7 is installed in the sewage discharge pipeline such as DN110 outlet pipe, so as to realize the multi-source sewage separation and quality discharge and collection, and can be applied to the separation and quality discharge and collection of toilet wastewater and washing wastewater. After the multi-source sewage separation and quality drainage device is installed in the sewage discharge pipeline, a multi-source sewage separation and quality drainage system is constructed.

[0040] Figure 8 is a schematic view of the multi-source sewage separation and quality drainage system according to the embodiment of the present application. As shown in Figure 8 , the multi-source sewage separation and quality drainage system according to the embodiment of the present application comprises a sewage discharge pipeline 810 and at least one discharge inner tube 210, wherein the sewage discharge pipeline 810 is located below the floor in the room, and the sewage discharge pipeline 810 is provided with at least two discharge sources 820 and at least one first water outlet end 830; the at least one discharge inner tube 210 is made of a flexible material, and comprises opposite first and second ends, the first end is suitable for connecting one discharge source 820, and the second end is suitable for connecting one first water outlet end 830.

[0041] According to the embodiment of the present application, as shown in Figure 8As shown in FIG. 1, four discharge sources 820 are taken as an example, four branch pipes are connected between the discharge sources 820 and the sewage discharge pipe 810, namely, a first branch pipe 821, a second branch pipe 822, a third branch pipe 823 and a fourth branch pipe 824. The four discharge sources 820 include, for example, three first discharge sources 820a for discharging washing wastewater and one second discharge source 820b for discharging toilet wastewater.

[0042] The washing wastewater and the toilet wastewater are separately discharged by the discharge inner pipes 210. Specifically, the three first discharge sources 820a are connected to the same first water outlet end 830 by three discharge inner pipes 210 respectively, and the second discharge source 820b is not connected to the discharge inner pipe, so that the washing wastewater of the three first discharge sources 820a and the toilet wastewater of the second discharge source 820b are separately discharged in the sewage discharge pipe 810.

[0043] Further, the three discharge inner pipes 210 are connected to the three first discharge sources 820a by the connection joints 840. As shown in FIG. 2, the connection joint can be, for example, a clamp and a locking bolt for connecting the discharge inner pipe 210 to the water outlet pipe of the floor drain, or the connection joint can be a first end of the discharge inner pipe 210, which is directly detachably buckled or outwardly set in the floor drain. Figure 8

[0044] According to the embodiment of the present application, as shown in FIG. 1, the sewage discharge pipe 810 is further provided with a second water outlet end 850, which is suitable for discharging and collecting the toilet wastewater from the second discharge source 820b, and the toilet wastewater is transported through the space in the sewage discharge pipe 810 outside the discharge inner pipe 210. Figure 8

[0045] According to the embodiment of the present application, as shown in FIG. 1, the number of the first water outlet end 830 is one, which can realize the separate discharge of the three first discharge sources 820a and the second discharge source 820b, but it can be understood that in the case of further increasing the separate discharge requirement of the discharge source of, for example, washing wastewater, the number of the first water outlet end 830 can be two. But it is not limited thereto. Figure 8

[0046] According to the embodiment of the present application, the first water outlet end 830 and the second water outlet end 850 can be a wastewater collection and treatment device, for example, a washing wastewater purification tank and a toilet wastewater harmless treatment tank respectively. The discharge inner pipe 210 can be closely connected to the water inlet pipe 831 of the wastewater collection and treatment device.

[0047] ​​​According to an embodiment of the present application, further optionally, the discharge inner tube 210 can be wound out through or above the second water outlet end 850 and then connected to the first water outlet end 830, as long as the waste water in the discharge inner tube 210 can not be mixed with the waste water in the second water outlet end 850.

[0048] According to an embodiment of the present application, a method for separating and discharging multi-source waste water using the above-mentioned separating and discharging device is also provided, which is combined with the device and system shown in the figures, and the method comprises the following operations S101-S104: Figure 8

[0049] In operation S101, the discharge inner tube 210 connected with the auxiliary outer tube 220 is inserted from the discharge source 820 and through the sewage discharge pipeline 810 to the first water outlet end 830 on the sewage discharge pipeline 810 without damaging the floor and the sewage discharge pipeline 810 in the room.

[0050] According to an embodiment of the present application, further, the discharge inner tube 210 is inserted from the first discharge source 820a in the discharge source 820. Therefore, before the operation, the drainage pipeline communication structure and the layout in the room need to be determined first to determine the position of the first discharge source 820a which is jointly discharged into the sewage discharge pipeline 810, so that one end (i.e. the fourth end) of the auxiliary outer tube can be inserted from the first discharge source 820a.

[0051] In operation S102, the two ends of the discharge inner tube 210 are connected between the discharge source 820 and the first water outlet end 830, and the discharge inner tube 210 and the auxiliary outer tube 220 are disconnected.

[0052] According to an embodiment of the present application, in operation S102, the first end of the discharge inner tube 210 and the first discharge source 820a are tightly connected by the connecting joint, and the second end and the first water outlet end 830, for example, the water inlet pipe 831 of the washing waste water purification tank, are tightly connected by the connecting joint. Then, the connection between the discharge inner tube 210 and the auxiliary outer tube 220 is disconnected, for example, the lock hook can be opened to make the lock hook out.

[0053] In operation S103, the auxiliary outer tube 220 after being disconnected is pulled out of the sewage discharge pipeline 810, and the separation of the discharge inner tube 210 and the auxiliary outer tube 220 is completed.

[0054] ​According to the embodiment of the present application, in operation S103, the connection between the second end of the discharge inner tube 210 and the first water outlet end 830 can be released so as to draw the auxiliary outer tube 220 out of the sewage discharge pipeline 810. Then the second end of the discharge inner tube 210 and the first water outlet end 830 are tightly connected again. Further, a lock catch is arranged at the first water outlet end 830, so that the lock hook arranged at the second end of the discharge inner tube 210 can also be connected to the lock catch of the first water outlet end 830 to achieve detachable connection, and the connection can also be strengthened.

[0055] According to the embodiment of the present application, after the discharge inner tube 210 and the auxiliary outer tube 220 are separated, the inner walls of the discharge inner tube 210 are in a state of approaching each other but not tightly adhering to each other, in which state the discharge inner tube almost does not occupy the drainage space of the sewage discharge pipeline 810.

[0056] In operation S104, the sewage generated by at least one discharge source is discharged to at least one first water outlet end 830 on the sewage discharge pipeline 810 through the discharge inner tube 210 corresponding to the discharge source 820.

[0057] According to the embodiment of the present application, the sewage of the first discharge source 820a is discharged to the first water outlet end 830 through the discharge inner tube 210, while the sewage of the second discharge source 820b is discharged to the second water outlet end 850 through the sewage discharge pipeline 810, thereby realizing separate and separate discharge.

[0058] According to the embodiment of the present application, in operation S104, as shown in Figure 8 , still taking the example that the first discharge source 820a discharges washing wastewater and the second discharge source 820b discharges toilet wastewater. When the first discharge source 820a has no washing wastewater to discharge, the inner walls of the discharge inner tube 210 approach each other but do not tightly adhere to each other, and almost do not occupy the drainage space of the sewage discharge pipeline 810, so as not to affect the discharge of the toilet wastewater which also flows through the sewage discharge pipeline 810 and has high solid content. When there is washing wastewater to be discharged, under the action of water gravity and power, the discharge inner tube with the inner walls approaching each other can easily expand, and the wastewater flows into the washing wastewater purification tank along the discharge inner tube. After the wastewater flows out, the expanded inner walls of the discharge inner tube are compressed under the action of the weak negative pressure generated in the pipeline after the wastewater flows through and the self-attractive force, so that the discharge inner tube returns to the deflated but not completely tightly adhered state when there is no wastewater flowing through.

[0059] According to the embodiment of the present application, in the process of separating and draining the multi-polluted water sources, the separating and draining system of the multi-polluted water sources can be conveniently maintained. Specifically, if the washing wastewater cannot be smoothly drained, and the discharge inner pipe needs to be cleaned, a blower or a suction machine can be used to clean the discharge inner pipe. If the above method still cannot achieve the purpose of cleaning the discharge inner pipe to smoothly drain water, the discharge inner pipe can be disassembled from the connection joint between the first discharge source 820a and the first water outlet end 830, and then taken out for cleaning. After cleaning, the discharge inner pipe is reassembled into the auxiliary outer pipe, and then the installation and use of the discharge inner pipe are repeated by operating S101-S104.

[0060] The above specific embodiments further specifically describe the purposes, technical solutions and beneficial effects of the present application. It should be understood that the above are only specific embodiments of the present application, and are not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-source wastewater separation and drainage device, applied to a wastewater discharge pipeline, wherein the wastewater discharge pipeline is provided with at least two discharge sources, at least one first outlet and at least one second outlet, and the wastewater discharge pipeline is located below the floor of an indoor building, wherein... The separation and diversion drainage device includes: At least one discharge inner pipe, made of flexible material, includes a first end and a second end opposite to each other. The first end is adapted to connect to a discharge source, and the second end is adapted to connect to a first water outlet. The second water outlet is adapted to supply water to the space inside the sewage discharge pipe and located outside the discharge inner pipe. When no sewage flows through the inside of the discharge inner pipe, the cross-section of the discharge inner pipe is naturally flat. When sewage flows through the inside of the discharge inner pipe, the discharge inner pipe can expand under the pressure of the sewage flowing through, and can return to its flat shape under the negative pressure and its own attraction after the sewage flows through. An auxiliary outer tube is suitable for being sleeved on the outside of the inner discharge tube. The auxiliary outer tube includes a third end and a fourth end opposite to each other. The third end is suitable for detachably connecting to the first end of the inner discharge tube, and the fourth end is suitable for detachably connecting to the second end of the inner discharge tube. The auxiliary outer pipe is adapted to carry the discharge inner pipe from the discharge source, extend through the sewage discharge pipe to the first outlet end, and be pulled out from the sewage discharge pipe when the discharge inner pipe is connected to the discharge source and the first outlet end respectively.

2. The separation and diversion drainage device according to claim 1, wherein: The first end of the inner discharge pipe and the third end of the auxiliary outer pipe, and the second end of the inner discharge pipe and the fourth end of the auxiliary outer pipe are connected by a snap-fit ​​connection; and / or The first end of the discharge inner pipe and the discharge source, as well as the second end of the discharge inner pipe and the first outlet end, are tightly connected by a connecting joint.

3. The separation and diversion drainage device according to claim 1 or 2, wherein, The first end of the discharge inner pipe and the discharge source, as well as the second end of the discharge inner pipe and the first outlet end, are detachably connected.

4. The separation and diversion drainage device according to claim 1, wherein: The maximum cross-sectional area of ​​the expanded inner discharge pipe is 10% to 25% of the cross-sectional area of ​​the sewage discharge pipe; and / or The number of the discharge inner pipes is 1 to 3.

5. The separation and diversion drainage device according to claim 1, wherein, The separation and separation drainage device also includes a ball bearing, which is installed at the fourth end of the auxiliary outer pipe via a loading shaft, and is suitable for guiding the auxiliary outer pipe through the sewage discharge pipe in a rolling manner.

6. The separation and diversion drainage device according to claim 1, wherein: The material of the inner discharge pipe is latex, PVC or nylon; The auxiliary outer tube is made of PVC. The auxiliary outer tube has a higher hardness than the discharge inner tube.

7. A method for separating and classifying wastewater from multiple sources using the separation and classification wastewater treatment device as described in any one of claims 1 to 6, comprising: Without damaging the indoor floor and sewage discharge pipes, an auxiliary outer pipe is used to carry the connected discharge inner pipe from the discharge source and through the sewage discharge pipe to the first outlet end of the sewage discharge pipe. Connect both ends of the inner discharge pipe between the discharge source and the first outlet, and disconnect the inner discharge pipe from the auxiliary outer pipe; The auxiliary outer pipe, after being disconnected, is pulled out from the sewage discharge pipe, thus completing the separation of the discharge inner pipe and the auxiliary outer pipe; Wastewater generated by at least one emission source is discharged to at least one first outlet end of the wastewater discharge pipe through an inner discharge pipe corresponding to the emission source.

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