Water treatment device based on ultrafiltration membrane filtration

Abstract

The utility model belongs to the technical field of water treatment, and particularly discloses a water treatment device based on ultrafiltration membrane filtration, which comprises an outer box body, a membrane box and an air compressor are arranged in the outer box body, an ultrafiltration membrane component is arranged in the membrane box, and a water inlet pipe, a water outlet pipe and a sludge discharge pipe are communicated on the membrane box. An inlet and an outlet of the ultrafiltration membrane assembly are respectively communicated with a water inlet pipe and a water outlet pipe of the membrane box; one end, far away from the membrane box, of the water inlet pipe is connected with a water inlet of the outer box body, one end, far away from the membrane box, of the water outlet pipe is connected with a water outlet of the outer box body, and one end, far away from the membrane box, of the sludge discharge pipe is communicated with a sludge discharge port of the outer box body; an air outlet of the air compressor is communicated with an air outlet pipe; one end, far away from the air compressor, of the air outlet pipe is communicated with a water inlet pipe of the membrane box; a water inlet valve is installed on the water inlet pipe, a water outlet valve is installed on the water outlet pipe, a mud discharging valve is installed on the mud discharging pipe, and an air inlet valve is installed on the air outlet pipe. According to the utility model, the filtering effect can be ensured, the ultrafiltration membrane can be cleaned, and meanwhile, a water backwashing system and a dosing cleaning system are canceled.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a water treatment device based on ultrafiltration membrane filtration. Background Technique

[0002] At present, during the operation of existing conventional water treatment processes (coagulation, sedimentation, filtration processes) or most ultrafiltration membrane technologies, maintenance personnel need to add different doses of flocculants and chemical cleaning agents according to the raw water conditions, and a dosing system needs to be configured. At the same time, a water backwashing system also needs to be set up, and a backwashing pump is set to backwash the ultrafiltration membrane to ensure the filtration effect. Its structure is complex, and installation, production, and transportation are all very inconvenient. However, for remote rural areas, due to the scattered areas and most residents being elderly or children living alone, the operation and management capabilities of local water pipe personnel for water purification facilities are far from meeting the requirements for normal operation of the equipment. Content of the Utility Model

[0003] The utility model provides a water treatment device based on ultrafiltration membrane filtration, aiming to cancel the setting of the water backwashing system and the dosing and cleaning system while ensuring the filtration effect and meeting the cleaning requirements.

[0004] The utility model is realized through the following technical solutions: A water treatment device based on ultrafiltration membrane filtration includes an outer box body, on which there are a water inlet, a water outlet, and a sludge discharge port. Inside the outer box body, there are a membrane box and an air compressor. Inside the membrane box, there is an ultrafiltration membrane module. The membrane box is connected with a water inlet pipe, a water outlet pipe, and a sludge discharge pipe. The inlet and outlet of the ultrafiltration membrane module are respectively connected with the water inlet pipe and the water outlet pipe of the membrane box;

[0005] One end of the water inlet pipe far from the membrane box is connected to the water inlet of the outer box body, one end of the water outlet pipe far from the membrane box is connected to the water outlet of the outer box body, and one end of the sludge discharge pipe far from the membrane box is communicated with the sludge discharge port of the outer box body;

[0006] The air outlet of the air compressor is connected with an air outlet pipe, and one end of the air outlet pipe far from the air compressor is connected to the water inlet pipe of the membrane box;

[0007] A water inlet valve is installed on the water inlet pipe, a water outlet valve is installed on the water outlet pipe, a sludge discharge valve is installed on the sludge discharge pipe, and an air inlet valve is installed on the air outlet pipe.

[0008] Compared with the prior art, the utility model has the following advantages and beneficial effects: In this solution, the raw water enters the membrane box through the water inlet pipe, is filtered by the ultrafiltration membrane module, and then is discharged from the water outlet pipe of the membrane box. In this solution, the membrane box and the air compressor are integrated in the outer box body, so modular production can be formed, which is convenient for water treatment in different places.

[0009] In this solution, while ensuring the filtering effect and meeting the cleaning requirements, the water backwashing system and the chemical cleaning system are eliminated. The air compressor can be used to introduce high-pressure gas into the membrane box to clean the ultrafiltration membrane assembly to prevent clogging of the ultrafiltration membrane. At the same time, this avoids the need to use a backwashing pump and a water inlet pump and the need for water resources for flushing when using backwashing technology in the prior art, thereby reducing the size of the device and the complexity of installation and having lower environmental requirements for use.

[0010] Furthermore, a filter is provided in the outer box body, a raw water inlet pipe is provided on the water inlet of the outer box body, one end of the raw water inlet pipe is connected to the inlet of the filter, and the outlet of the filter is connected to the water inlet pipe of the membrane box.

[0011] Beneficial effect: The setting of the filter in this scheme can perform preliminary filtration on the raw water, avoiding large particle impurities from clogging or damaging the ultrafiltration membrane component, which would affect the filtration effect. This scheme realizes the protection of the ultrafiltration membrane.

[0012] Furthermore, the inlet of the filter is located at the upper part thereof, and the outlet of the filter is located at the lower part thereof.

[0013] Beneficial effects: This solution allows the water inlet pipe, water outlet pipe and mud discharge pipe to be distributed below the membrane box and staggered with the raw water inlet pipe connected to the filter to avoid interference. At the same time, the water outlet pipe, water inlet pipe and mud discharge pipe occupy less space and their position is lower, which is convenient for connection and installation with other devices.

[0014] Furthermore, the bottom of the filter is connected to a sewage pipe, and a valve is provided on the sewage pipe.

[0015] Beneficial effect: In this solution, the sewage pipe connected to the bottom of the filter facilitates the discharge of the sludge generated in the filter.

[0016] Furthermore, the mud discharge pipe on the membrane box is connected to the sewage discharge pipe, and one end of the sewage discharge pipe away from the filter is connected to the mud discharge port of the outer box body.

[0017] Beneficial effect: In this solution, the mud discharge pipe on the membrane box is connected with the sewage discharge pipe and then merged into one pipe for mud discharge, which can reduce the occupied space between the mud discharge pipe and the sewage discharge pipe.

[0018] Furthermore, a dosing machine is also provided in the outer box body, and a dosing pipe is connected between the dosing machine and the water outlet pipe of the membrane box.

[0019] Beneficial effect: The dosing machine in this solution can disinfect the filtered water so that the water quality meets the use requirements.

[0020] Further, a water quality detector is provided inside the outer box body. The sampling pipe of the water quality detector is connected to the water outlet pipe, and samples are taken through the liquid level difference of the ultrafiltration membrane.

[0021] Beneficial effects: The water quality detector in this solution can detect the water after filtration treatment and determine whether the water quality meets the requirements.

[0022] Further, an electric control cabinet is provided inside the outer box body. The electric control cabinet is used to control the start and stop of the water quality detector, the chemical dosing machine, and the air compressor.

[0023] Beneficial effects: In this solution, the electric control cabinet is connected to the electrical equipment in the ultrafiltration unit, which can play an automatic control role and is more automated.

[0024] Further, a photovoltaic power supply and a photovoltaic inverter are also provided inside the outer box body. A photovoltaic panel is provided outside the outer box body, and the photovoltaic panel is connected to the photovoltaic inverter.

[0025] Beneficial effects: In this solution, it can be powered by self-provided power sources such as solar energy, which is suitable for rural areas in remote areas.

[0026] Further, the ultrafiltration membrane module is a superhydrophilic ultrafiltration membrane.

[0027] Beneficial effects: The ultrafiltration membrane in this solution is a superhydrophilic ultrafiltration membrane, which does not require chemical cleaning and water backwashing, only air backwashing is needed. In this way, while the ultrafiltration membrane can be cleaned, the water backwashing system and the chemical dosing cleaning system can be cancelled, and the device is simpler and more convenient to use. Description of the Drawings

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not constitute a limitation to the embodiments of the present invention. In the drawings:

[0029] Figure 1 is a three-dimensional view of the internal equipment of the outer box body in the embodiment of the present invention;

[0030] Figure 2 is a top view of the internal equipment of the outer box body in the embodiment of the present invention.

[0031] Marks in the drawings and corresponding component names:

[0032] Outer box body 101, raw water inlet pipe 102, membrane box 1, inlet pipe 2, outlet pipe 3, sludge discharge pipe 4, air inlet valve 5, water outlet valve 6, water inlet valve 7, filter 8, sludge discharge valve 9, sewage discharge pipe 10, air compressor 11, air outlet pipe 111, chemical dosing machine 12, chemical dosing pipe 121, water quality detector 13, electric control cabinet 14, photovoltaic power supply 15, photovoltaic inverter 16. Detailed Embodiments

[0033] In order to make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and do not serve as a limitation to the present utility model.

[0034] As Figure 1 and Figure 2 shown, Embodiment 1 of the present utility model provides a water treatment device based on ultrafiltration membrane filtration, including an outer box body 101, on which there are a water inlet, a water outlet, and a sludge discharge port. Inside the outer box body 101, there are a membrane box 1 and an air compressor 11. Inside the membrane box 1, there is an ultrafiltration membrane module. In this embodiment, the ultrafiltration membrane module is a super-hydrophilic ultrafiltration membrane.

[0035] A water inlet pipe 2, a water outlet pipe 3, and a sludge discharge pipe 4 are connected to the membrane box 1. The inlet and outlet of the ultrafiltration membrane module are respectively connected to the water inlet pipe 2 and the water outlet pipe 3 of the membrane box 1;

[0036] One end of the water inlet pipe 2 far from the membrane box 1 is connected to the water inlet of the outer box body 101, one end of the water outlet pipe 3 far from the membrane box 1 is connected to the water outlet of the outer box body 101, and one end of the sludge discharge pipe 4 far from the membrane box 1 is connected to the sludge discharge port of the outer box body 101;

[0037] An air outlet pipe 111 is connected to the air outlet of the air compressor 11. One end of the air outlet pipe 111 far from the air compressor 11 is connected to the water inlet pipe 2 of the membrane box 1;

[0038] In this embodiment, a water inlet valve 7 is installed on the water inlet pipe 2, a water outlet valve 6 is installed on the water outlet pipe 3, a sludge discharge valve 9 is installed on the sludge discharge pipe 4, and an air inlet valve 5 is installed on the air outlet pipe 111. In this embodiment, the end of the air outlet pipe 111 connected to the water inlet pipe 2 is located between the water inlet valve 7 and the membrane box 1, and the air inlet valve 5 is located at one end of the air outlet pipe 111 close to the water inlet pipe 2.

[0039] In this embodiment, a filter 8 is provided inside the outer box body 101. A raw water inlet pipe 102 is provided on the water inlet of the outer box body 101. One end of the raw water inlet pipe 102 is connected to the inlet of the filter 8, and the outlet of the filter 8 is connected to the water inlet pipe 2 of the membrane box 1. In this way, the raw water will first enter the filter 8 for pretreatment and then enter the membrane box 1 through the water inlet pipe 2 for further filtration.

[0040] In this embodiment, the inlet of the filter 8 is located at its upper part, the outlet of the filter 8 is located at its lower part, and the water inlet pipe 2, the water outlet pipe 3, and the sludge discharge pipe 4 are all located below the raw water inlet pipe 102.

[0041] The bottom of the filter 8 is connected to a sewage discharge pipe 10, and a valve is provided on the sewage discharge pipe 10. The sludge discharge pipe 4 on the membrane box 1 is communicated with the sewage discharge pipe 10. In this embodiment, the sludge discharge pipe 4 and the sewage discharge pipe 10 are vertically arranged, and the two are communicated through a tee. One end of the sewage discharge pipe 10 away from the filter 8 is communicated with the sludge discharge port of the outer box 101.

[0042] In this embodiment, a chemical dosing machine 12 is further provided in the outer box 101. A chemical dosing pipe 121 is communicated between the chemical dosing machine 12 and the water outlet pipe 3 of the membrane box 1. A valve for controlling its on-off is provided at the outlet of the chemical dosing machine 12, and a disinfectant is contained in the chemical dosing machine 12.

[0043] A water quality detector 13 is provided in the outer box 101. In this embodiment, the water quality detector 13 is installed on the outside of the membrane box 1 by screws, and the probe of the water quality detector 13 extends into the water outlet pipe 3. In this embodiment, the detection probe of the water quality detector 13 is located downstream of the chemical dosing pipe 121 and the water outlet pipe 3. In this embodiment, the chemical dosing machine 12, the filter 8, the air compressor 11, and the membrane box 1 are fixedly connected to the bottom of the outer box 101 by bolts.

[0044] The specific implementation process is as follows: In this embodiment, the raw water enters the filter 8 through the raw water inlet pipe 102 for pretreatment. The water after preliminary filtration then enters the membrane box 1 through the inlet pipe 2 and is finely filtered through the ultrafiltration membrane module. The filtered water is then discharged from the water outlet pipe 3. The chemical dosing machine 12 adds a disinfectant into the water outlet pipe 3 through the chemical dosing pipe 121 to disinfect the water quality, so that the discharged water can be used for drinking. The water quality detector 13 detects the water in the water outlet pipe 3.

[0045] The ultrafiltration membrane module in this embodiment uses a super hydrophilic ultrafiltration membrane, which does not require chemical cleaning and water backwashing, only air backwashing. By starting the air compressor 11 and opening the air inlet valve 5, the ultrafiltration membrane module can be cleaned to avoid blockage and affect the filtration effect.

[0046] Embodiment 2, the difference between this embodiment and Embodiment 1 is that: in this embodiment, an electric control cabinet 14, a photovoltaic power supply 15, and a photovoltaic inverter 16 are provided in the outer box 101. The photovoltaic power supply 15 is a storage battery. A photovoltaic panel is provided outside the outer box 101. The photovoltaic panel is connected to the photovoltaic inverter 16, and the photovoltaic inverter 16 is respectively connected to the electric control cabinet 14 and the photovoltaic power supply 15. This embodiment can be powered by self-provided power such as solar energy, so as to be suitable for use in remote rural areas.

[0047] The electric control cabinet 14 is connected to the electrical equipment in the ultrafiltration unit, and the electric control cabinet 14 is used to control the start and stop of the water quality detector 13, the chemical dosing machine 12, and the air compressor 11.

[0048] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, 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 water treatment device based on ultrafiltration membrane filtration, comprising an outer box body, wherein the outer box body is provided with a water inlet, a water outlet and a mud discharge outlet, characterized in that: A membrane box and an air compressor are arranged inside the outer box body, an ultrafiltration membrane assembly is arranged inside the membrane box, a water inlet pipe, a water outlet pipe and a mud discharge pipe are connected to the membrane box, and the inlet and outlet of the ultrafiltration membrane assembly are respectively connected to the water inlet pipe and the water outlet pipe of the membrane box; One end of the water inlet pipe away from the membrane box is connected to the water inlet of the outer box body, one end of the water outlet pipe away from the membrane box is connected to the water outlet of the outer box body, and one end of the mud discharge pipe away from the membrane box is connected to the mud discharge port of the outer box body; The air outlet of the air compressor is connected to an air outlet pipe, and one end of the air outlet pipe away from the air compressor is connected to the water inlet pipe of the membrane box; The water inlet pipe is provided with a water inlet valve, the water outlet pipe is provided with a water outlet valve, the mud discharge pipe is provided with a mud discharge valve, and the air outlet pipe is provided with an air inlet valve.

2. A water treatment device based on ultrafiltration membrane filtration according to claim 1, characterized in that: A filter is arranged in the outer box body, a raw water inlet pipe is arranged on the water inlet of the outer box body, one end of the raw water inlet pipe is connected with the inlet of the filter, and the outlet of the filter is connected with the water inlet pipe of the membrane box.

3. A water treatment device based on ultrafiltration membrane filtration according to claim 2, characterized in that: The inlet of the filter is located at the upper part thereof, and the outlet of the filter is located at the lower part thereof.

4. A water treatment device based on ultrafiltration membrane filtration according to claim 2, characterized in that: The bottom of the filter is connected with a sewage pipe, and a valve is arranged on the sewage pipe.

5. A water treatment device based on ultrafiltration membrane filtration according to claim 4, characterized in that: The mud discharge pipe on the membrane box is communicated with the sewage discharge pipe, and one end of the sewage discharge pipe away from the filter is communicated with the mud discharge port of the outer box body.

6. A water treatment device based on ultrafiltration membrane filtration according to any one of claims 1 to 5, characterized in that: A dosing machine is also provided in the outer box body, and a dosing pipe is connected between the dosing machine and the water outlet pipe of the membrane box.

7. A water treatment device based on ultrafiltration membrane filtration according to claim 6, characterized in that: A water quality detector is arranged in the outer box, and a probe of the water quality detector extends into the water outlet pipe.

8. A water treatment device based on ultrafiltration membrane filtration according to claim 7, characterized in that: An electric control cabinet is arranged in the outer box, and the electric control cabinet is used for controlling the start and shut down of the water quality detector, the dosing machine and the air compressor.

9. A water treatment device based on ultrafiltration membrane filtration according to claim 8, characterized in that: A photovoltaic power source and a photovoltaic inverter are also provided inside the outer box, and a photovoltaic panel is provided outside the outer box, and the photovoltaic panel is connected to the photovoltaic inverter.

10. The water treatment device based on ultrafiltration membrane filtration according to claim 1, characterized in that: The ultrafiltration membrane component is an ultra-hydrophilic ultrafiltration membrane.

Images