Efficient low-carbon water treatment device

Abstract

The utility model discloses a high-efficiency low-carbon water treatment device, which comprises a membrane tank, a water inlet pipe and a water outlet pipe, the membrane tank comprises at least two independent subareas, each independent subarea comprises a plurality of membrane components and a subarea water outlet pipe, each membrane component comprises a plurality of immersed plate-shaped ultrafiltration membranes and a water outlet branch pipe, the water outlet branch pipes of the membrane assemblies are connected to the partition water outlet pipes in the independent partitions where the membrane assemblies are located, and an online turbidity meter is arranged on the downstream of each partition water outlet pipe and used for positioning the independent partitions where the fault membrane assemblies are located. And the independent subareas correspond to independent sludge collecting and discharging systems. The water quality stability, the water quantity continuity and the equipment operation stability can be improved, the construction period is shortened, the operation energy consumption is reduced, the service life of the equipment is prolonged, the replacement cost of core components of the equipment is reduced, and extra pollutants are not generated.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a high-efficiency and low-carbon water treatment device. Background Art

[0002] When the polluted water has many suspended solids, large fluctuations in water quality, large fluctuations in water volume, and long residence time, the treatment process needs to solve problems such as poor operation stability, stability of effluent water quality and water volume, operation energy consumption and economy. When the existing water treatment system uses chemical principles for flocculation and sedimentation, the operation needs to continuously adjust the dosage of the reagent, resulting in poor operation stability; the water treatment system using ultrafiltration technology generally lays the water components in the membrane pool and performs whole-in and whole-out filtration treatment on the water body. Therefore, when the membrane component needs to be backwashed, the water output of the entire water treatment system is interrupted; when the membrane component is dirty or damaged, the staff cannot quickly and accurately determine the location of the abnormal membrane component, and can only stop the entire water treatment system and clean and repair all membrane components, resulting in unstable water output, long construction period, repeated shutdown and start-up, and high cost of replacing new membrane components; solid particulate pollutants are easy to cause blockage in ultrafiltration water treatment systems, increase operating energy consumption, and shorten the service life of equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a water treatment device to improve the stability of water quality and water quantity of the water treatment system, the stability of equipment operation, and the service life of the equipment, and reduce operating energy consumption, maintenance construction time and cost investment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A water treatment device comprises a membrane pool, a water inlet pipe and a water outlet pipe, wherein the membrane pool is used to accommodate the water to be treated discharged from the water inlet pipe, and is characterized in that:

[0006] The membrane pool includes at least two independent partitions, each of which is separated by a weir plate;

[0007] The water inlet pipe is configured as a main water inlet pipe connected to the membrane pool, or at least two water inlet branches are connected to the membrane pool in parallel at a preset interval;

[0008] The independent partition includes a plurality of membrane components and a partition outlet pipe;

[0009] The membrane assembly comprises a plurality of submerged plate-shaped ultrafiltration membranes and a water outlet branch pipe, wherein the submerged ultrafiltration membranes are made of aluminum oxide;

[0010] Among them, the outlet branch pipes of the membrane assembly are all connected to the partition outlet pipes in the independent partition where the membrane assembly is located. An online turbidity meter is configured downstream of each partition outlet pipe to monitor the outlet turbidity of the corresponding independent partition in real time. When the monitored value of the outlet turbidity exceeds a preset threshold, the online turbidity meter will issue a quantitative alarm.

[0011] Preferably, the faulty membrane assembly includes at least one of the following situations: dirty, damaged, or blocked.

[0012] Preferably, below the membrane pool, a mud collection and discharge system is configured for each independent partition, and the mud collection and discharge system includes a mud collection area, a mud collection pipe, a mud discharge pump and a mud discharge inclined plate.

[0013] Preferably, the treatment device is equipped with a backwashing system, and the backwashing system includes at least one of the following: an air washing system and a water washing system.

[0014] Preferably, the water washing system is supplied with water through the partitioned water outlet pipe; when the partitioned water outlet pipe changes the direction of water flow, it is transformed into a backwashing water inlet pipe, and the partitioned backwashing mode is turned on.

[0015] Preferably, the air washing system is supplied with air through a backwash air distribution system; a plurality of nano-cloth air disks are arranged below the membrane assembly, and micro-bubbles are used to sweep and wash to clean the surface of the membrane assembly.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By designing the water inlet and outlet of the membrane pool in different zones, the water-passing components are improved into independent membrane components, which are arranged in each independent zone respectively, and the water inlet, water outlet, backwashing and maintenance can be completed in parallel. When the filter membrane fails, the turbidity meter is used to locate the independent zone where the membrane component is located, and the faulty membrane component is repaired. At the same time, other independent zones do not stop production, which can shorten the construction period. The water treatment device can continue to operate without stopping production as a whole, thereby improving the stability of the effluent, reducing the repair cost after membrane damage and the energy consumption of equipment operation, and increasing the service life of the equipment.

[0018] 2. The membrane component is the core water-passing component and adopts an immersed ultrafiltration membrane made of aluminum oxide, which has a large effective flux and strong anti-pollution ability.

[0019] 3. The mud collection and discharge system can effectively reduce the impact and pollution of water quality fluctuations on membrane components, reduce operating energy consumption, extend the permanent pollution cycle and the service life of membrane components, and reduce the cost of operating and replacing membrane components.

[0020] 4. The partition in the backwash state does not affect the water output of other partitions, ensuring continuous and stable water output of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0022] Figure 1 It is a top cross-sectional schematic diagram of the water treatment device of the utility model;

[0023] Figure 2 It is a left side cross-sectional schematic diagram of the water treatment device of the utility model;

[0024] Figure 3 It is a front cross-sectional schematic diagram of the water treatment device of the utility model. DETAILED DESCRIPTION

[0025] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] refer to Figure 1 The utility model provides a high-efficiency low-carbon water treatment device, including a membrane pool 1, an inlet pipe 3, and an outlet pipe 5. The membrane pool 1 is used to accommodate the water to be treated discharged from the inlet pipe 3, wherein the membrane pool 1 includes at least two independent partitions, each of which is separated by a weir plate; the inlet pipe 3 is configured as a main inlet pipe connected to the membrane pool 1, or at least two water inlet branches are connected to the membrane pool 1 in parallel at a preset interval; the independent partition includes a plurality of membrane components 2 and a partition outlet pipe 4, the membrane component 2 includes a plurality of submerged plate-like ultrafiltration membranes and an outlet branch pipe, the submerged plate-like ultrafiltration membrane is made of aluminum oxide, the outlet branch pipes of the membrane component 2 are all connected to the partition outlet pipe 4 in the independent partition where the membrane component 2 is located, and an online turbidity meter 6 is configured downstream of each partition outlet pipe 4 to locate the independent partition where the faulty membrane component is located. Faulty membrane components include at least one of the following situations: dirty, damaged, or blocked.

[0027] The specific number of membrane modules 2 arranged in the independent partition can be set based on various factors such as the size of the device, water treatment efficiency, detection efficiency of the membrane module 2, and the overall cost of the device. For example, it can be set to 2, 3, ..., 100, etc. Figure 1-2 Each independent partition is exemplarily arranged with two rows, one above the other, and three membrane modules 2 are arranged in each row. The number of plate-shaped ultrafiltration membrane sheets in the membrane module 2 cannot be too small, and can be set to 50-150 sheets. In actual production, it is more appropriate to set it to 100 sheets. Figure 2The height of the weir plate of the partition weir 9 is flush with the top of the membrane assembly 2 and lower than the outer wall of the membrane pool 1, ensuring that during normal production, all the membrane assemblies 2 in the membrane pool are in an immersed state.

[0028] By designing the water inlet and outlet of the membrane pool 1 in different zones, the water-passing components are improved into membrane components 2 of independent units, which are arranged in each independent zone respectively, and the water inlet and outlet can be completed in parallel. By setting an online turbidity meter 6 downstream of the outlet pipe 4 of each zone, the turbidity of the outlet water of the corresponding independent zone can be monitored in real time. When the filter membrane is dirty, damaged, blocked or other faults occur, resulting in the monitoring value of the outlet turbidity exceeding the preset threshold, the online turbidity meter 6 will give a quantitative alarm, so that the staff can quickly locate the independent zone where the faulty membrane component is located, so that only the membrane component 2 in the corresponding independent zone needs to be inspected, cleaned, replaced or the like. During this period, other independent zones will not stop production, which can shorten the construction period and realize continuous production without stopping the overall operation of the water treatment device, thereby improving the stability of the outlet water, reducing the repair cost after the membrane is damaged and the energy consumption of the equipment operation, and increasing the service life of the equipment.

[0029] The configuration of the line turbidity meter 6 at the outlet branch of each membrane assembly 2 can realize the independent detection and maintenance of the membrane assembly, and the replacement of the faulty membrane assembly is more accurate. The installation of a large number of instruments also increases the construction cost of the water treatment device. Therefore, only the line turbidity meter 6 is configured on the partition outlet pipe 4, which can realize the rapid positioning of the independent partition where the fault is located, reduce the number of instruments installed, and reduce the construction cost investment.

[0030] The membrane component 2 is used as a core water-passing component and adopts the submerged plate-shaped ultrafiltration membrane made of aluminum oxide, which has a large effective flux and a strong anti-pollution ability.

[0031] refer to Figure 2-3 In the utility model, as an optional embodiment, a mud collection and discharge system 7 is configured for each independent partition below the membrane pool 1. The mud collection and discharge system 7 includes a mud collection area 71, a mud collection pipe 72, a mud discharge pump 73 and a mud discharge inclined plate 74, which are used to collect and discharge sludge in the water, which can effectively reduce the impact and pollution of water quality fluctuations on the membrane component 2, reduce operating energy consumption, extend the permanent pollution cycle and the service life of the membrane component 2, and reduce the cost of operating and replacing the membrane component 2.

[0032] In the present invention, as an optional embodiment, the processing device configures a backwashing system for each independent partition to clean the membrane assembly 2. The backwashing system includes at least one of the following: an air washing system and a water washing system. Figure 1 The water washing system is fed with water through the partition outlet pipe 4 and the backwash pipe. The partition outlet pipe 4 changes the direction of water flow and turns into the backwash inlet pipe 3, turning on the partition backwash mode. Figure 2-3The air washing system is fed with air through the backwashing air distribution system 8. A support frame 10 is provided below the membrane assembly 2. In the space between the support frame 10 and the membrane assembly 2, a plurality of nano-fabric air disks are arranged to clean the surface of the membrane assembly 2 by utilizing the state change of the rapid floating of micro-bubbles. Since the backwashing system is an independent configuration corresponding to the independent partitions one by one, when a single independent partition is backwashed, other independent partitions can continue to produce without being affected, and there is no need to stop all production to enter the backwashing state, and continuous production of water can be achieved.

[0033] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A high-efficiency, low-carbon water treatment device, comprising a membrane pool, an inlet pipe, and an outlet pipe, wherein the membrane pool is used to accommodate the water to be treated discharged from the inlet pipe, characterized in that: The membrane pool includes at least two independent partitions, each of which is separated by a weir plate; The water inlet pipe is configured as a main water inlet pipe connected to the membrane pool, or at least two water inlet branches are connected to the membrane pool in parallel at a preset interval; The independent partition includes a plurality of membrane components and a partition outlet pipe; The membrane assembly comprises a plurality of submerged plate-shaped ultrafiltration membranes and a water outlet branch pipe, wherein the submerged plate-shaped ultrafiltration membranes are made of aluminum oxide; The outlet branch pipes of the membrane assembly are all connected to the partition outlet pipes in the independent partition where the membrane assembly is located. An online turbidity meter is configured downstream of each partition outlet pipe to monitor the outlet turbidity of the corresponding independent partition in real time. When the monitored value of the outlet turbidity exceeds a preset threshold, the online turbidity meter performs a quantitative alarm. Below the membrane pool, a mud collection and discharge system is configured for each independent partition, and the mud collection and discharge system includes a mud collection area, a mud collection pipe, a mud discharge pump and a mud discharge inclined plate.

2. The high-efficiency low-carbon water treatment device according to claim 1, characterized in that: Faulty membrane components include at least one of the following: dirty, damaged, or blocked.

3. The high-efficiency low-carbon water treatment device according to claim 1, characterized in that: The independent partition is configured with a backwash system, and the backwash system includes at least one of the following: an air washing system and a water washing system.

4. The high-efficiency low-carbon water treatment device according to claim 3 is characterized in that: The water washing system is supplied with water through the partitioned water outlet pipe; when the partitioned water outlet pipe changes the water flow direction, it is transformed into a backwashing water inlet pipe, and the partitioned backwashing mode is turned on.

5. The high-efficiency low-carbon water treatment device according to claim 3 is characterized in that: The air washing system takes in air through a backwash air distribution system; a plurality of nano-fabric air disks are arranged below the membrane assembly, and the surface of the plate-shaped ultrafiltration membrane of the membrane assembly is cleaned by sweeping with micro-bubbles.

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