Combined water treatment equipment

Abstract

The utility model relates to combined water treatment equipment, and relates to the technical field of filtering equipment, the combined water treatment equipment comprises a filtering tank and a filtering box, the filtering tank is internally provided with a filtering medium, and the top and the lower part of the filtering tank are respectively and fixedly provided with a liquid inlet pipe and a liquid outlet pipe; an ultrafiltration membrane body and a water inlet pipe are arranged in the filter box, two ends of the water inlet pipe are respectively communicated with a liquid outlet pipe and extend to the bottom side in the filter box, a first adjusting valve is arranged at the end part, far away from the liquid outlet pipe, of the water inlet pipe, a water outlet pipe is fixedly arranged at the water outlet end of the ultrafiltration membrane body, and a second adjusting valve is arranged at the end part of the water outlet pipe; when sewage is treated, the corresponding valves are opened firstly, so that the sewage is injected into the filtering tank through the liquid inlet pipe, is discharged from the liquid outlet pipe after being preliminarily filtered by the filtering medium, is injected into the filtering box through the water inlet pipe, is filtered by the ultrafiltration membrane body and is discharged from the water outlet pipe, and multiple filtering treatment of the sewage is realized; the corresponding sewage treatment standard is met.

Description

Technical Field

[0001] This application relates to the technical field of filtration equipment, and particularly to a combined water treatment equipment. Background Art

[0002] With the rapid advancement of industrialization and urbanization, sewage treatment, as a core area of environmental protection, has become increasingly prominent. In the sewage treatment process, the filtration link plays a crucial role. It is responsible for effectively removing pollutants such as suspended solids, colloids, organic matter, and bacteria in the water body, which is directly related to the safety of the effluent water quality and the strict compliance with environmental protection standards.

[0003] Currently, the mainstream filtration technology uses granular filter media such as quartz sand and anthracite as the core filtration medium. Through the physical interception of the filter media, the separation and removal of impurities in the sewage are achieved. Such filtration equipment has a relatively simple structure, consisting of a filter tank, an efficient water distribution system, and a regularly operating backwashing system, which work together to complete the sewage purification task. The sewage is first evenly distributed onto the filter media layer through the water distribution system, and then complex physical and chemical reactions occur inside the filter media. Finally, the separation of clean water and impurities is realized. The clean water flows out from the bottom of the filter tank, while the impurities are intercepted in the filter media.

[0004] However, although such filtration equipment plays an important role in sewage treatment, it still faces some significant technical challenges in practical applications. In particular, as the operation time extends, the porosity of the filter media may gradually decrease due to quality differences or dirt accumulation, resulting in a shortened residence time of the sewage in the filter media layer, and the inability to fully carry out the filtration reaction, thus weakening the sewage interception capacity of the equipment. This problem is directly reflected in the effluent water quality, that is, the quality of the water body after filtration treatment may still not meet higher environmental protection standards, and there is a significant need for improvement. Summary of the Utility Model

[0005] The purpose of this application is to provide a combined water treatment equipment to solve the problem that the conventional filtration equipment in the above related technologies has poor treatment effect on sewage and cannot meet the water quality requirements.

[0006] A combined water treatment equipment provided by this application adopts the following technical solutions:

[0007] A combined water treatment equipment includes a filtration tank and a filtration box. The filtration tank is internally provided with a filtration medium, and the top and bottom of the filtration tank are respectively fixedly provided with a liquid inlet pipe and a liquid outlet pipe; the interior of the filtration box is provided with an ultrafiltration membrane body and a water inlet pipe. The two ends of the water inlet pipe are respectively communicated with the liquid outlet pipe and extend to the bottom side inside the filtration box. A first regulating valve is provided at the end of the water inlet pipe far from the liquid outlet pipe. The water outlet end of the ultrafiltration membrane body is fixedly provided with a water outlet pipe, and a second regulating valve is provided at the end of the water outlet pipe.

[0008] By adopting the above technical solution, when treating sewage, the first regulating valve and the second regulating valve are opened in advance. The sewage is first injected into the interior of the filter tank through the liquid inlet pipe, and after being preliminarily filtered by the filter medium, it is discharged from the liquid outlet pipe. Then, it is injected into the filter box through the water inlet pipe, and after being filtered by the ultrafiltration membrane body, it is discharged from the water outlet pipe, thereby realizing multiple filtration treatments of the sewage, improving the quality of the filtered water body, and making it meet the corresponding sewage treatment standards.

[0009] Optionally, the height of the pipe orifice of the liquid inlet pipe is not lower than the height of the upper edge of the filter box.

[0010] By adopting the above technical solution, since the height of the pipe orifice of the liquid inlet pipe is not lower than the height of the upper edge of the filter box, after the filter tank treats the sewage and discharges it from the liquid outlet, it can be injected into the interior of the filter box through the water inlet pipe without the intervention of a water pump, reducing the cost during the filtration process.

[0011] Optionally, a flushing assembly is provided outside the filter box, and the flushing assembly includes an air flushing member and a water flushing member for cleaning the ultrafiltration membrane body in the reverse direction.

[0012] By adopting the above technical solution, the ultrafiltration membrane body can be regularly cleaned by the air flushing member and the water flushing member, thereby ensuring the sewage treatment effect of the ultrafiltration membrane body.

[0013] Optionally, the air flushing member includes an air flushing pipe connected to an external air pump and a connecting pipe communicating with the water outlet end of the ultrafiltration membrane body. The ends of the air flushing pipe and the connecting pipe close to each other are connected, and a first control valve is fixedly provided on the end of the air flushing pipe facing the connecting pipe.

[0014] By adopting the above technical solution, when cleaning the ultrafiltration membrane body by the air flushing member, the first regulating valve and the second regulating valve are closed, the first control valve is opened, and then the compressed gas is reversed through the air flushing pipe and the connecting pipe into the ultrafiltration membrane body, thereby flushing the impurities adhered to the surface of the ultrafiltration membrane.

[0015] Optionally, the water flushing member includes a water flushing pipe connected to an external water pump and a drain pipe located at the lower part of the filter box. The end of the water flushing pipe is fixedly connected to the outer periphery of the water outlet pipe, and the water flushing pipe is located between the ultrafiltration membrane body and the second regulating valve; the drain pipe penetrates through the filter box and communicates with the water inlet end of the ultrafiltration membrane body. A second control valve is fixedly provided on the end of the water flushing pipe facing the water outlet pipe, and a third control valve is fixedly provided on the end of the drain pipe facing the ultrafiltration membrane body.

[0016] By adopting the above technical solution, when cleaning the ultrafiltration membrane body by the water flushing member, the second regulating valve is closed in advance, the second control valve and the third control valve are opened, and the backwashing water is reversely injected into the ultrafiltration membrane body through the water flushing pipe and finally discharged from the drain pipe, thereby realizing the water flushing of the ultrafiltration membrane body.

[0017] Optionally, a feeding pipe for adding a cleaning agent is fixedly arranged on the outer periphery of the water flushing pipe, and a fourth control valve is fixedly arranged on the end of the feeding pipe facing the water flushing pipe.

[0018] By adopting the above technical solution, when the ultrafiltration membrane body is cleaned by the water flushing part, the fourth control valve is synchronously opened, so that the cleaning agent and the backwashing water are mixed and injected into the ultrafiltration membrane body through the water flushing pipe together. The stubborn impurities adhered to the outer side surface of the ultrafiltration membrane are shed by the cleaning agent, and the water flushing effect on the ultrafiltration membrane body is improved.

[0019] Optionally, a feeding port for adding a filtering medium is arranged on the upper part of the outer side surface of the filtering tank, and a first sealing cover for sealing the feeding port is provided.

[0020] By adopting the above technical solution, when adding the filtering medium into the filtering tank, the first sealing cover can be opened, and the filtering medium is added into the filtering tank from the feeding port, which is convenient for adding the filtering medium.

[0021] Optionally, a discharging port for discharging the filtering medium is arranged on the lower part of the outer side surface of the filtering tank, and a second sealing cover for sealing the discharging port is provided.

[0022] By adopting the above technical solution, when the filtering medium needs to be replaced after a period of application, the second sealing cover can be opened, and the filtering medium in the filtering tank is discharged from the discharging port, which is convenient for replacing the filtering medium.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When treating sewage, the first regulating valve and the second regulating valve are opened in advance. The sewage is first injected into the filtering tank through the liquid inlet pipe, and after being preliminarily filtered by the filtering medium, it is discharged from the liquid outlet pipe. Then, it is injected into the filtering box through the water inlet pipe, and then filtered by the ultrafiltration membrane body and discharged from the water outlet pipe, so as to realize the multi-stage filtration treatment of sewage, improve the quality of the filtered water body, and make it meet the corresponding sewage treatment standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a structural schematic diagram showing the installation and distribution of the filtering tank and the filtering box in the embodiment of the present application;

[0027] Figure 2 It is a structural schematic diagram of the installation and distribution of the recoil component and the filter tank in the embodiment of the present application.

[0028] In the figure, 1 is a filter tank; 11 is a liquid inlet pipe; 12 is a liquid outlet pipe; 13 is a first sealing cover; 14 is a second sealing cover; 2 is a filter tank; 3 is an ultrafiltration membrane body; 4 is a water inlet pipe; 41 is a first regulating valve; 5 is a water outlet pipe; 51 is a second regulating valve; 6 is a flushing component; 61 is an air flushing part; 611 is an air flushing pipe; 6111 is a first control valve; 612 is a connecting pipe; 62 is a water flushing part; 621 is a water flushing pipe; 6211 is a second control valve; 622 is a drain pipe; 6221 is a third control valve; 623 is a feeding pipe; 6231 is a fourth control valve. Specific embodiments

[0029] The following further elaborates on the present application in conjunction with all the attached drawings.

[0030] Embodiment:

[0031] Refer to Figure 1 , a combined water treatment device, including a filter tank 1 and a filter tank 2. The filter tank 1 is internally provided with a filter medium (not shown in the figure). The top and bottom of the filter tank 1 are respectively fixedly provided with a liquid inlet pipe 11 and a liquid outlet pipe 12. Solenoid valves for controlling their own on-off are provided at the ends of the liquid inlet pipe 11 and the liquid outlet pipe 12, which will not be elaborated here;

[0032] The interior of the filter tank 2 is provided with an ultrafiltration membrane body 3 and a water inlet pipe 4. The two ends of the water inlet pipe 4 are respectively communicated with the liquid outlet pipe 12 and extend to the bottom side inside the filter tank 2. A first regulating valve 41 is fixedly provided at the end of the water inlet pipe 4 away from the liquid outlet pipe 12. The water outlet end of the ultrafiltration membrane body 3 is fixedly provided with a water outlet pipe 5, and a second regulating valve 51 is provided at the end of the water outlet pipe 5;

[0033] When treating sewage, first open the first regulating valve 41 and the second regulating valve 51. The sewage is first injected into the filter tank 1 through the liquid inlet pipe 11. After preliminary filtration by the filter medium, it is discharged from the liquid outlet pipe 12, and then injected into the filter tank 2 through the water inlet pipe 4, and then filtered by the ultrafiltration membrane body 3 and discharged from the water outlet pipe 5, so as to achieve multiple filtration treatments of the sewage.

[0034] Refer to Figure 1, the filter medium is quartz sand placed inside the filter tank 1, which is a conventional filtering material and will not be elaborated here. An inlet for adding the filter medium (not shown in the figure) is provided at the upper part of the outer side of the filter tank 1, and a first sealing cover 13 for sealing the inlet (not shown in the figure) is installed. A discharge port for discharging the filter medium (not shown in the figure) is provided at the lower part of the outer side of the filter tank 1, and a second sealing cover 14 for sealing the discharge port (not shown in the figure) is installed.

[0035] Refer to Figure 1 , the ultrafiltration membrane body 3 is an immersed ultrafiltration membrane, which means that the ultrafiltration membrane module is directly immersed in the water to be treated. Through the sieving action of the membrane pore size, suspended solids, colloids, microorganisms, bacteria, viruses and other impurities in the water are intercepted, thereby realizing the purification of water, which will not be elaborated here. The height of the pipe orifice of the inlet pipe 11 is not lower than the upper edge height of the filter tank 2. With this setting, the sewage treated by the filter tank 1 can be injected into the interior of the filter tank 2 without the intervention of a water pump, reducing the cost during the filtration process.

[0036] Refer to Figure 2 , a flushing assembly 6 is provided outside the filter tank 2, and the flushing assembly 6 includes an air flushing member 61 and a water flushing member 62 for cleaning the ultrafiltration membrane body 3 in the reverse direction; the air flushing member 61 includes an air flushing pipe 611 connected to an external air pump and a connecting pipe 612 communicating with the water outlet end of the ultrafiltration membrane body 3. The ends of the air flushing pipe 611 and the connecting pipe 612 close to each other are communicated; a first control valve 6111 is fixedly provided at the end of the air flushing pipe 611 facing the connecting pipe 612;

[0037] When cleaning the ultrafiltration membrane body 3 through the air flushing member 61, the first regulating valve 41 and the second regulating valve 51 are closed, the first control valve 6111 is opened, and then the compressed gas is reversed through the air flushing pipe 611 and the connecting pipe 612 to the ultrafiltration membrane body 3, so as to flush the impurities adhered to the surface of the ultrafiltration membrane.

[0038] Refer to Figure 2 , the water flushing member 62 includes a water flushing pipe 621 connected to an external water pump and a drain pipe 622 located at the lower part of the filter tank 2. The end of the water flushing pipe 621 is fixedly connected to the outer periphery of the water outlet pipe 5, and the water flushing pipe 621 is located between the ultrafiltration membrane body 3 and the second regulating valve 51;

[0039] The drain pipe 622 penetrates through the filter tank 2 and communicates with the water inlet end of the ultrafiltration membrane body 3. A second control valve 6211 is fixedly provided at the end of the water flushing pipe 621 facing the water outlet pipe 5, and a third control valve 6221 is fixedly provided at the end of the drain pipe 622 facing the ultrafiltration membrane body 3; a feeding pipe 623 for adding a cleaning agent is fixedly provided on the outer periphery of the water flushing pipe 621, and a fourth control valve 6231 is fixedly provided at the end of the feeding pipe 623 facing the water flushing pipe 621.

[0040] During water flushing, the second regulating valve 51 is pre-closed, the second control valve 6211, the third control valve 6221 and the fourth control valve 6231 are opened, and the backwashing water mixed with the cleaning agent is reversely injected into the ultrafiltration membrane body 3 through the water flushing pipe 621 together, and finally discharged from the drain pipe 622, so as to realize the water flushing of the ultrafiltration membrane body 3.

[0041] The implementation principle of the embodiment of this application is as follows:

[0042] When treating sewage, the first regulating valve 41 and the second regulating valve 51 are pre-opened. The sewage is first injected into the interior of the filtration tank 1 through the liquid inlet pipe 11. After preliminary filtration by the filtration medium, it is discharged from the liquid outlet pipe 12, and then injected into the filtration tank 2 through the water inlet pipe 4. Then, after being filtered by the ultrafiltration membrane body 3, it is discharged from the water outlet pipe 5, so as to realize the multi-stage filtration treatment of sewage;

[0043] When cleaning the ultrafiltration membrane body 3 through the air flushing member 61, the first regulating valve 41 and the second regulating valve 51 are closed, the first control valve 6111 is opened, and then the compressed gas is reversely introduced into the ultrafiltration membrane body 3 through the air flushing pipe 611 and the connecting pipe 612, so as to wash off the impurities adhering to the surface of the ultrafiltration membrane;

[0044] When cleaning the ultrafiltration membrane body 3 through the water flushing member 62, the second regulating valve 51 is pre-closed, the second control valve 6211, the third control valve 6221 and the fourth control valve 6231 are opened, and the backwashing water mixed with the cleaning agent is reversely injected into the ultrafiltration membrane body 3 through the water flushing pipe 621 together, and finally discharged from the drain pipe 622, so as to realize the water flushing of the ultrafiltration membrane body 3.

[0045] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The "first", "second", "third" and similar terms used in the text of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms such as "upper", "lower", "left", "right" are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationships may also change accordingly.

[0046] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A combined water treatment device, characterized in that, It includes a filter tank (1) and a filter box (2). A filter medium is provided inside the filter tank (1). An inlet pipe (11) and an outlet pipe (12) are fixedly provided at the top and bottom of the filter tank (1) respectively; An ultrafiltration membrane body (3) and a water inlet pipe (4) are provided inside the filter box (2). The two ends of the water inlet pipe (4) are respectively communicated with the outlet pipe (12) and extend to the bottom side inside the filter box (2). A first regulating valve (41) is provided at the end of the water inlet pipe (4) far from the outlet pipe (12). An outlet pipe (5) is fixedly provided at the water outlet end of the ultrafiltration membrane body (3). A second regulating valve (51) is provided at the end of the outlet pipe (5).

2. The modular water treatment device according to claim 1, characterized in that, The height of the pipe orifice of the inlet pipe (11) is not lower than the height of the upper edge of the filter box (2).

3. The combined water treatment device according to claim 1, characterized in that, A flushing assembly (6) is provided outside the filter box (2). The flushing assembly (6) includes an air flushing part (61) and a water flushing part (62) for cleaning the ultrafiltration membrane body (3) in the reverse direction.

4. The modular water treatment device according to claim 3, characterized in that, The air flushing part (61) includes an air flushing pipe (611) connected to an external air pump and a connecting pipe (612) communicated with the water outlet end of the ultrafiltration membrane body (3). The ends of the air flushing pipe (611) and the connecting pipe (612) close to each other are communicated. A first control valve (6111) is fixedly provided at the end of the air flushing pipe (611) facing the connecting pipe (612).

5. The modular water treatment equipment according to claim 3, wherein The water flushing part (62) includes a water flushing pipe (621) connected to an external water pump and a drain pipe (622) located at the lower part of the filter box (2). The end of the water flushing pipe (621) is fixedly connected to the outer periphery of the outlet pipe (5), and the water flushing pipe (621) is located between the ultrafiltration membrane body (3) and the second regulating valve (51); The drain pipe (622) penetrates through the filter box (2) and is communicated with the water inlet end of the ultrafiltration membrane body (3). A second control valve (6211) is fixedly provided at the end of the water flushing pipe (621) facing the outlet pipe (5). A third control valve (6221) is fixedly provided at the end of the drain pipe (622) facing the ultrafiltration membrane body (3).

6. The modular water treatment equipment according to claim 5, characterized in that, A feeding pipe (623) for adding a cleaning agent is fixedly provided on the outer periphery of the water flushing pipe (621). A fourth control valve (6231) is fixedly provided at the end of the feeding pipe (623) facing the water flushing pipe (621).

7. A combined water treatment device according to claim 1, characterized in that A feeding port for adding the filter medium is opened at the upper part of the outer side surface of the filter tank (1), and a first sealing cover (13) for sealing the feeding port is provided.

8. The combined water treatment device according to claim 7, characterized in that, A discharging port for discharging the filter medium is opened at the lower part of the outer side surface of the filter tank (1), and a second sealing cover (14) for sealing the discharging port is provided.

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