Integrated membrane treatment water purification equipment

Abstract

The utility model discloses integrated membrane treatment water purification equipment which comprises a membrane pool assembly, the membrane pool assembly comprises a plurality of filter membrane groups, sensors are arranged on the filter membrane groups, water outlet branch pipes connected with the filter membrane groups respectively are arranged on the membrane pool assembly, the water outlet branch pipes are converged at a water outlet pipe, and the water outlet pipe is communicated with a water inlet pipe. The water outlet pipe is connected to a clean water tank through a tandem electric valve, and a backwashing water pipe connected with the water outlet pipe in parallel is arranged between the membrane tank assembly and the clean water tank. Each filter membrane group operates independently, and when one or more filter membrane groups are backwashed, the other filter membrane group can still produce water, so that the water production efficiency of the system is improved; proper membrane components and process parameters are selected according to different water quality and treatment requirements, so that the method has relatively high adaptability; the system integration degree is high, and the occupied area is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, and more specifically, it relates to an integrated membrane treatment water purification device. Background Art

[0002] In the water purification treatment process, the construction period of the water purification plant project is long, the occupied area is large, and the construction cost is relatively high. Therefore, water plants at home and abroad are constantly researching and improving the integrated water purification system.

[0003] Chinese Patent Publication No. CN 220564451 U, publication date March 8, 2024, the name of the utility model is an integrated mixing, flocculation, sedimentation, and ultrafiltration integrated water purification treatment device. This application discloses an integrated water purification treatment device that integrates a reaction tank, a sedimentation tank, and a filtration unit in a water treatment tank, thereby reducing the floor area required for equipment construction. Among them, the device is provided with a backwashing system to wash the reaction tank. However, during backwashing, the system needs to stop the water production operation, which will reduce the overall water production efficiency of the system and thus affect the water use of residents. Summary of the Utility Model

[0004] The utility model overcomes the deficiency that the water production operation needs to be stopped during backwashing in the prior art, and provides an integrated membrane treatment water purification device. It adopts an efficient backwashing system, and each filtration membrane group operates independently. When one or several filtration membrane groups are backwashed, the other filtration membrane groups can still produce water, improving the water production efficiency of the system.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: An integrated membrane treatment water purification device includes a membrane tank assembly. The membrane tank assembly includes several filtration membrane groups. Sensors are arranged on the filtration membrane groups. The membrane tank assembly is provided with outlet branch pipes respectively connected to each filtration membrane group. The outlet branch pipes converge into an outlet pipe. The outlet pipe is connected to a clear water tank through a series-connected electric valve. A backwashing water pipe parallel to the outlet pipe is arranged between the membrane tank assembly and the clear water tank.

[0006] The setting of the membrane tank assembly of the utility model improves the overall integration degree of the system. The outlet branch pipes arranged in parallel on the membrane tank assembly are respectively connected to each filtration membrane group, converge into the outlet pipe, and a backwashing water pipe parallel to the outlet pipe is arranged. Each filtration membrane group automatically collects data according to its own sensor for data analysis, and realizes the backwashing control of each system according to the set pressure difference and time value. When a filtration membrane group needs to be backwashed, each filtration membrane group operates independently. When one or several filtration membrane groups are backwashed, the other filtration membrane groups can still produce water, which can improve the overall water production efficiency of the system and reduce the impact on the water use of residents.

[0007] Preferably, a backwashing water pump is connected in series on the backwashing water pipe, and an electric valve is provided between the membrane tank assembly and the backwashing water pump.

[0008] The backwashing water pump is a specific device for realizing the water flushing module. When water flushing is required, the electric valve between the membrane tank assembly and the backwashing water pump is opened, and the backwashing water pump works to conduct water flushing on the filter membrane module to be flushed. After the water flushing is completed, the electric valve is closed.

[0009] Preferably, an air backwashing pipe is provided on the membrane tank assembly, and after an electric valve is connected in series on the air backwashing pipe, it is connected to an air washing fan.

[0010] The air washing fan is a specific device for realizing the air flushing module. When air flushing is required, the electric valve on the air backwashing pipe is opened, and the air washing fan works to flush the filter membrane module to be flushed. After the air flushing is completed, the electric valve is closed.

[0011] Preferably, it includes an inclined tube sedimentation tank, and an inclined tube sedimentation tank sludge plate is provided at the bottom of the inclined tube sedimentation tank. The inclined tube sedimentation tank can conduct preliminary filtration and sedimentation on the flocculated water. The inclined tube sedimentation tank sludge plate is arranged at the bottom of the inclined tube sedimentation tank, so that the sediment and sludge can be more concentrated and easier to discharge.

[0012] Preferably, it includes a grid reaction tank. The inlet of the grid reaction tank is connected to the water inlet pipe through an electric valve in series, and the outlet of the grid reaction tank is connected to the inclined tube sedimentation tank.

[0013] The outlet of the grid reaction tank is connected to the water inlet pipe, and the source water enters the water purification equipment from here. After flocculation is completed in the grid reaction tank, it enters the inclined tube sedimentation tank for preliminary sedimentation.

[0014] Preferably, a tube-type static mixer is connected in series in front of the electric valve on the water inlet pipe, and the tube-type static mixer is connected to a PAC dosing device.

[0015] The PAC dosing device and the tube-type static mixer are specific devices for the dosing module. The source water is mixed with the flocculant in the tube-type static mixer and then enters the grid reaction tank to complete the flocculation process.

[0016] Preferably, a backwashing sewage discharge pipe is led out between the membrane tank assembly and the inclined tube sedimentation tank, and a pneumatic angle valve is connected in series on the backwashing sewage discharge pipe.

[0017] By opening the pneumatic angle valve, the backwashing sewage discharge pipe is controlled to be opened, so as to realize discharging the wastewater generated by backwashing from the backwashing sewage discharge pipe and discharging it into the wastewater pool.

[0018] Preferably, a plurality of sludge discharge pipes are led out at the bottom of the inclined tube sedimentation tank and the grid reaction tank, and a pneumatic angle valve is connected in series on the sludge discharge pipe.

[0019] The sludge discharge pipe is controlled to be opened by opening the pneumatic angle valve, so that the sludge precipitated in the grid reaction tank or concentrated by the sludge slide plate of the inclined tube sedimentation tank is discharged from the sludge discharge pipe into the sludge discharge tank.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] Each filtration membrane group operates independently. When one or several filtration membrane groups are backwashed, the other filtration membrane groups can still produce water, improving the water production efficiency of the system.

[0022] The designs of the water washing module, air washing module, dosing module, etc. make the system highly integrated, with a compact structure, reducing the floor area, being easy to operate and maintain, having a controllable water supply scale, and being flexible and convenient to transfer.

[0023] Appropriate membrane components and process parameters can be selected according to different water qualities and treatment requirements, having strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the structural diagram of the present utility model.

[0025] Figure 2 is the top view of the present utility model.

[0026] Figure 3 is the process layout diagram of the present utility model.

[0027] In the figures: 1. Membrane tank assembly, 101. Filtration membrane group, 102. Outlet branch pipe, 2. Grid reaction tank, 3. Inclined tube sedimentation tank, 301. Sludge slide plate of inclined tube sedimentation tank, 302. Sludge discharge pipe, 4. Outlet pipe, 5. Clear water tank, 601. Backwash water pipe, 602. Backwash water pump, 603. Backwash sewage discharge pipe, 701. Backwash air pipe, 702. Air washing fan, 801. Chemical washing equipment, 901. Inlet pipe, 902. PAC dosing equipment, 903. Tube type static mixer, 10. Inspection hole, G401. Electric valve 1, G601. Electric valve 2, G701. Electric valve 3, G901. Electric valve 4, G302. Pneumatic angle valve 1, G603. Pneumatic angle valve 2. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the drawings:

[0029] Embodiment 1: With the improvement of the economic level and the rapid development of technology, people's demand for high-quality drinking water is also increasing day by day. The main defects of the conventional processes such as flocculation, sedimentation and filtration adopted in traditional water plants are as follows: the removal effect is not good, and traditional water plants cannot remove impurities, microorganisms and harmful substances in water to provide safe and reliable drinking water; the application range is small: it cannot treat urban sewage, industrial wastewater, etc., and cannot remove pollutants such as organic matter, suspended solids, nitrogen, and phosphorus in water to achieve up-to-standard discharge or reuse.

[0030] The research on integrated water purification systems by water plants at home and abroad is not yet perfect. In particular, when backwashing is carried out, water production must be stopped, which will reduce the water production efficiency of the system.

[0031] Therefore, the present utility model provides an integrated membrane treatment water purification device, and its main function is a water treatment device that integrates multiple membrane treatment units in one device. It usually includes grid flocculation, inclined tube sedimentation, membrane filtration unit, post-treatment unit, etc. for water, and can achieve efficient filtration, separation and purification of water to realize net water production. It is applicable to urban water supply, rural drinking water, industrial water, treatment of polluted water sources, slightly polluted rivers and lakes, etc.

[0032] As Figure 1 and Figure 2 shown, the device provided by the present utility model includes a grid reaction tank 2, a membrane tank assembly 1 and an inclined tube sedimentation tank 3. The raw water enters the grid reaction tank 2 from the water inlet pipe 901 and undergoes flocculation in the grid reaction tank 2. The membrane tank assembly 1 includes a number of filter membrane groups 101. In this embodiment, there are 12 filter membrane groups 101. The filter membrane groups 101 do not interfere with each other and work independently. Sensors are arranged in the membrane tank assembly 1, and data can be automatically collected through the sensors for data analysis, so as to control the backwashing of each filter membrane group 101 according to the set pressure difference and time values. When a certain filter membrane group 101 needs to be backwashed, because the filter membrane groups 101 operate independently of each other, when one or several of the filter membrane groups 101 are backwashed, the other filter membrane groups 101 can still produce water, which can improve the overall water production efficiency of the system and reduce the impact on residents' water use. At the same time, the advanced membrane filtration technology adopted by the present utility model can effectively remove impurities, microorganisms and harmful substances in water, improve the water quality, and at the same time can improve the color and transparency of water. In addition, appropriate membrane components and process parameters can be selected according to different water qualities and treatment requirements, and it has strong adaptability.

[0033] Three outlet branches 102 are provided above the membrane pool assembly 1, which are connected to each filter membrane group 101 respectively. The outlet branches 102 are collected in the outlet pipe 4, which is connected to the clean water pool 5 by serially connecting the electric valve G401. The electric valve G401 can be opened or closed to realize whether the outlet pipe 4 and the clean water pool 5 are connected. The inclined tube sedimentation tank 3 utilizes the principle of laminar flow, improves the treatment capacity of the sedimentation tank, shortens the particle settling distance, thereby shortening the sedimentation time, and increases the sedimentation area of ​​the sedimentation tank, thereby improving the treatment efficiency.

[0034] An inclined tube sedimentation tank 3 is arranged below the membrane tank assembly 1, and a backwash drain pipe 603 is led out between the inclined tube sedimentation tank 3 and the membrane tank assembly 1, and a pneumatic angle valve G603 is connected in series to the backwash drain pipe 603. The backwash drain pipe 603 is opened by opening the pneumatic angle valve G603 to control the opening of the backwash drain pipe 603, so that the wastewater generated by backwashing can be discharged from the backwash drain pipe 603 and discharged into the wastewater tank, and the sediment in the inclined tube sedimentation tank 3 can be avoided to be affected, thereby reducing the water production efficiency.

[0035] The bottom of the inclined tube sedimentation tank 3 is provided with an inclined tube sedimentation tank sliding plate 301, which is composed of a number of inverted triangle blocks, and the inverted triangle blocks are evenly spread over the entire bottom of the inclined tube sedimentation tank 3 to form the inclined tube sedimentation tank sliding plate 301 part. A number of mud discharge pipes 302 are led out from the bottom of the inclined tube sedimentation tank 3 and the grid reaction tank 2, and the mud discharge pipes 302 are connected in series with a pneumatic angle valve G302. The mud discharge pipes 302 are controlled to be opened by opening the pneumatic angle valve G302, so that the sludge precipitated in the grid reaction tank 2 or concentrated by the inclined tube sedimentation tank sliding plate 301 is discharged from the mud discharge pipe 302 and discharged into the mud discharge tank.

[0036] The water purification device is also provided with an inspection hole 10 so that maintenance personnel can perform regular maintenance and inspection on the water purification device.

[0037] Embodiment 2: In this embodiment, a detailed introduction is given to the backwashing system of the present invention. The backwashing system of the present invention includes a water flushing module and an air flushing module.

[0038] like Figure 3As shown in the figure, an anti-washing water pipe 601 parallel to the water outlet pipe 4 is arranged between the membrane tank assembly 1 and the clean water tank 5. An anti-washing water pump 602 is connected in series on the anti-washing water pipe 601, and an electric valve two G601 is arranged between the membrane tank assembly 1 and the anti-washing water pump 602. The anti-washing water pump 602 is the specific equipment realized by the water flushing module. When water flushing is required, the electric valve two G601 between the membrane tank assembly 1 and the anti-washing water pump 602 is opened, and the anti-washing water pump 602 works to make the clean water in the clean water tank 5 reversely enter the water outlet branch pipe 102 above the filter membrane group 101 to be flushed through the anti-washing water pipe 601, so as to conduct water flushing on the filter membrane group 101. After the water flushing is completed, the electric valve two G601 is closed, and the electric valve one G401 is opened.

[0039] An anti-washing air pipe 701 connected to the membrane tank assembly 1 is arranged below the water outlet pipe 4. An electric valve three G701 is connected in series on the anti-washing air pipe 701 and then connected to an air washing fan 702. The air washing fan 702 is the specific equipment realized by the air flushing module. When air flushing is required, the electric valve three G701 on the anti-washing air pipe 701 is opened, and the air washing fan 702 works to provide high-pressure air flow to flush the filter membrane group 101 to be flushed through the anti-washing air pipe 701. After the air flushing is completed, the electric valve three G701 is closed.

[0040] In actual work, an automatic control system is usually equipped, which can realize automatic operation, detection and maintenance, reduce manual operation and improve operation efficiency. At the same time, the anti-flushing system is controlled according to the sensor to complete the anti-flushing.

[0041] Embodiment 3: In some embodiments, a chemical washing module is further added to the anti-flushing system. The chemical washing module includes a chemical washing device 801 and a chemical washing pipeline connecting the chemical washing device 801 and the membrane tank assembly 1. One end of the chemical washing pipeline is connected to the chemical washing device 801, and the other end is connected to the water outlet pipe 4. When the filter membrane group 101 is subjected to anti-flushing, cleaning drugs are added into the anti-washing water pipe 601 or the anti-washing air pipe 701 through the chemical washing pipeline, so that the filter membrane group 101 can be cleaned more thoroughly.

[0042] In addition, before the source water enters the grid reaction tank 2 of the water purification equipment, a PAC dosing module is arranged. The PAC dosing module includes a PAC dosing device 902 and a tubular static mixer 903. The tubular static mixer 903 is installed on the water inlet pipe 901. The PAC dosing device 902 adds a flocculant into the tubular static mixer 903. The source water first enters the tubular static mixer 903 to be mixed with the flocculant, and then enters the grid reaction tank 2 together for full mixing and flocculation process.

[0043] Next, combined with the above-mentioned structures and the functions of each module, the overall working process of the present invention will be introduced in detail:

[0044] First, the raw water to be purified enters the inlet pipe 901. At this time, the electric valve four G901 on the inlet pipe 901 is opened, and the raw water enters the PAC dosing module. After being mixed with the flocculant in the tubular static mixer 903, it enters the grid reaction tank 2 in the water purification equipment. In the grid reaction tank 2, the raw water and the flocculant are fully mixed, and the flocculation process is completed. During this process, the pneumatic angle valve one G302 on the sludge discharge pipe 302 at the bottom of the grid reaction tank 2 is in the open state, and some precipitates or large pieces of sludge will settle back to the bottom of the grid reaction tank 2 and be discharged from the system through the sludge discharge pipe 302 and enter the sludge discharge tank.

[0045] After the raw water completes flocculation in the grid reaction tank 2, it enters the inclined tube sedimentation tank 3 through the outlet. The raw water will be preliminarily filtered and sedimented by the inclined tubes installed in the inclined tube sedimentation tank 3. The sludge and precipitates generated by the filtration and sedimentation will slowly settle at the bottom of the inclined tube sedimentation tank 3. The structure of the inclined tube sedimentation tank sludge slide plate 301 at the bottom of the inclined tube sedimentation tank 3 is composed of multiple closely connected inverted triangular small pieces. The precipitates and sludge will slide to the bottom of the inclined tube sedimentation tank 3 through these inverted triangular small pieces and become more concentrated, without affecting the water purification effect. At this time, the pneumatic angle valve one G302 on the sludge discharge pipe 302 at the bottom of the inclined tube sedimentation tank 3 is also in the open state, and these precipitates and sludge will be discharged from the system through the sludge discharge pipe 302 and enter the sludge discharge tank.

[0046] After the preliminary filtration and sedimentation in the inclined tube sedimentation tank 3, the raw water will reach the membrane tank assembly 1 module. Each group of filter membrane groups 101 in the membrane tank assembly 1 starts to work independently to finally filter the raw water. In this module, by adopting advanced membrane filtration technology, impurities, microorganisms, and harmful substances in the water can be efficiently removed, the water quality can be improved, and at the same time, the color and transparency of the water can be improved, and the effluent meets the requirements of high-quality drinking water. The precipitates generated during this process will also slowly sink to the bottom of the inclined tube sedimentation tank 3 and be discharged from the system through the sludge discharge pipe 302. In addition, during this process, the pneumatic angle valve two G603 on the backwashing sewage discharge pipe 603 led out between the inclined tube sedimentation tank 3 and the membrane tank assembly 1 is in the closed state. After the raw water is purified after passing through the membrane tank assembly 1, it enters the outlet branch pipe 102 and then converges into the outlet pipe 4. At this time, the electric valve one G401 on the outlet pipe 4 is in the open state, and then the purified water enters the clear water tank 5 to supply water to residents.

[0047] After working for a period of time, the sensors installed in the membrane tank assembly 1 collect and analyze data, and perform backwashing control on the filter membrane module 101 that needs to be flushed according to the set pressure difference and time values. When water flushing is required, the electric valve I G401 on the water outlet pipe 4 is closed, and at the same time, the electric valve II G601 on the backwash water pipe 601 is opened. At this time, the chemical cleaning equipment 801 adds cleaning chemicals into the water outlet pipe 4 through the chemical cleaning pipeline, and the washing water pump also starts to work, so that the clean water in the clean water tank 5 reversely enters the water outlet branch pipe 102 above the filter membrane module 101 that needs to be flushed through the backwash water pipe 601, and performs backwashing on the filter membrane module 101. The remaining filter membrane modules 101 still work independently to produce water. During this process, the pneumatic angle valve II G603 on the backwash sewage pipe 603 is in the open state, and the wastewater generated during the backwashing process is discharged from the system through the backwash sewage pipe 603 and discharged to the wastewater tank. The backwashing process is ended according to the data collected by the sensors in the membrane tank assembly 1. When air flushing is required, the electric valve III G701 on the backwash air pipe 701 is opened, and the air washing fan 702 works to provide high-pressure air flow, and the filter membrane module 101 that needs to be flushed is flushed through the backwash air pipe 701. After the air washing is completed, the electric valve III G701 is closed. During this process, the pneumatic angle valve II G603 on the backwash sewage pipe 603 is in the open state. The backwashing system completely uses an automatic control system to control the electric valves or pneumatic valves to complete the flushing.

[0048] Combined with the above embodiments, the beneficial effects produced by the present utility model are as follows: modular design, high degree of integration, compact structure, composed of various water treatment process units, realizing the synchronous completion of "water supply + water purification", with a short construction period, small floor area, simple operation and maintenance, controllable water supply scale, and flexible and convenient transfer; the membrane tank assembly 1 adopts advanced membrane filtration technology, which can efficiently remove impurities, microorganisms and harmful substances in water, improve water quality, and at the same time can improve the color and transparency of water; an intelligent backwashing system is adopted, which can automatically collect data by sensors for data analysis, and realize backwashing control of each filter membrane module 101 according to the set pressure difference and time values; an efficient backwashing system, each filter membrane module 101 operates independently, and when one or several filter membrane modules 101 are backwashed, the other filter membrane modules 101 can still operate to produce water, reducing the impact on residents' water use; it is possible to select appropriate membrane components and process parameters according to different water qualities and treatment requirements, and has strong adaptability.

[0049] The above-described embodiments are only preferred solutions of the present utility model, and do not impose any form of limitation on the present utility model. There are other variants and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. An integrated membrane treatment water purification device, characterized in that: It includes a membrane pool assembly, which includes a plurality of filter membrane groups. Sensors are arranged on the filter membrane groups. The membrane pool assembly is provided with outlet branches respectively connected to the filter membrane groups. The outlet branches are gathered in an outlet pipe. The outlet pipe is connected to a clean water tank through a series electric valve. A backwash water pipe connected in parallel with the outlet pipe is arranged between the membrane pool assembly and the clean water tank.

2. The integrated membrane treatment water purification equipment according to claim 1, characterized in that: A backwash water pump is connected in series to the backwash water pipe, and an electric valve is provided between the membrane pool assembly and the backwash water pump.

3. The integrated membrane treatment water purification equipment according to claim 1 or 2, characterized in that: The membrane pool assembly is provided with a backwash air pipe, and the backwash air pipe is connected to an air washing fan after being connected in series with an electric valve.

4. The integrated membrane treatment water purification equipment according to claim 1 or 2, characterized in that: The utility model comprises an inclined tube sedimentation tank, and a mud slide of the inclined tube sedimentation tank is arranged at the bottom of the inclined tube sedimentation tank.

5. The integrated membrane treatment water purification equipment according to claim 4, characterized in that: It comprises a grid reaction pool, the inlet of which is connected to a water inlet pipe through a serial electric valve, and the outlet of which is connected to an inclined tube sedimentation tank.

6. The integrated membrane treatment water purification equipment according to claim 5, characterized in that: The water inlet pipe is connected in series with a tubular static mixer before the electric valve, and the tubular static mixer is connected to the PAC dosing equipment.

7. The integrated membrane treatment water purification equipment according to claim 4, characterized in that: A backwash drain pipe is led out between the membrane pool assembly and the inclined tube sedimentation tank, and a pneumatic angle valve is connected in series to the backwash drain pipe.

8. The integrated membrane treatment water purification equipment according to claim 4, characterized in that: A plurality of mud discharge pipes are led out from the bottom of the inclined tube sedimentation tank and the grid reaction tank, and the mud discharge pipes are serially connected with pneumatic angle valves.

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