Water purification system with high recovery rate

Abstract

The utility model relates to a high-recovery-rate water purification system which comprises a raw water tank, a water purification shell, a water supply pump group, a water washing pipeline and a gas washing pipeline, a water inlet of the raw water tank is connected with a municipal tap water pipe network through a municipal water inlet pipe, a water outlet of the raw water tank is connected with a water inlet of the water purification shell through a raw water pipe, and a carbon set, a membrane set and a water production pipe are sequentially arranged in the water purification shell and located above the water inlet of the water purification shell. The water supply pump set supplies water to the user side through the water supply pipe; the other path of the water production pipe is connected with the washing pipeline and the gas washing pipeline; a reuse water tank is arranged in the raw water tank, and a honeycomb inclined pipe is arranged in the reuse water tank. The carbon group and the membrane group are arranged in the water purification shell, so that the integration level is high, the equipment size is reduced, and the occupied area is saved. Sewage generated by forward washing and reverse washing can be conveyed to the recycling water tank through the blow-off pipe to be recycled, so that the water resource recycling rate is high, and raw water is saved.

Description

Technical Field

[0001] This utility model belongs to the field of residential water supply technology, and in particular relates to a high recovery rate water purification system. Background Technology

[0002] With societal progress, residents are using more and more water, leading to increasingly prominent water pollution problems and a significant increase in drinking water hygiene standards. Conventional residential water supply mainly relies on water tanks installed at the end users for regulation and is primarily boosted using municipal water supply networks and secondary water supply equipment. Water quality is also affected by human factors and the natural environment, especially in the hot summer months when severe water pollution can occur. During the water distribution process from the water tank to the user's tap, contaminants such as rust, particulate matter, or microorganisms can easily accumulate in the pipes, resulting in a decline in the quality of the water coming out of the tap, or even failing to meet standards.

[0003] With the popularization of membrane technology, membrane treatment technology has been widely used in residential water supply due to its advantages such as good water purification effect, low energy consumption and small footprint. Currently, the commonly used water purification system on the market uses tank activated carbon adsorption, followed by membrane treatment, then water purification tank, and finally pressurized water to end users through a booster pump to achieve high-quality drinking water. However, the existing water purification system has low integration and large footprint because the tank activated carbon and membrane treatment equipment are set up separately. Especially in the renovation of old communities, it is usually impossible to provide renovation site. At the same time, the wastewater from the backwashing of the existing water purification system is usually directly discharged into the ditch, resulting in water waste. Utility Model Content

[0004] The main objective of this invention is to propose a high-recovery-rate water purification system that can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-recovery-rate water purification system includes a raw water tank, a water purification shell, a water supply pump set, a water washing pipeline, and an air washing pipeline.

[0007] The inlet of the raw water tank is connected to the municipal water supply network through a municipal water inlet pipe, and the outlet of the raw water tank is connected to the inlet of the water purification shell through a raw water pipe. A booster pump is installed on the raw water pipe. Inside the water purification shell, above its inlet, a carbon group, a membrane group, and a product water pipe are arranged in sequence. The product water pipe extends out of the water purification shell, with one end connected to the water supply pump group. The water supply pump group supplies water to the user side through the water supply pipe, and the other end of the product water pipe is connected to the water washing pipeline and the air washing pipeline respectively.

[0008] The raw water tank is equipped with a recycled water tank, which contains honeycomb inclined tubes. The top of the recycled water tank has an overflow port, and the bottom of the water purification shell is connected to the inlet of the recycled water tank through a sewage pipe.

[0009] Preferably, the water washing pipeline is provided with an ozone mixing tank, a water washing switching valve and an ejector in sequence, and the ejector is connected to the water supply pipe and the ozone generator through pipelines respectively.

[0010] Preferably, the air washing pipeline is provided with an air washing switching valve, a check valve and an air compressor in sequence.

[0011] Preferably, the water washing pipeline and the air washing pipeline are connected to the water production pipeline through a manifold, and a backwash valve is provided on the manifold.

[0012] Preferably, a water production valve is provided on the end of the water production pipe near the water supply pump set.

[0013] Preferably, a first inlet valve is installed on the municipal water inlet pipe.

[0014] Preferably, a second inlet valve is provided on the raw water pipe.

[0015] Preferably, the bottom of the water purification shell is a V-shaped sludge collection hopper, and the bottom of the V-shaped sludge collection hopper is connected to the inlet of the recycled water tank through a drain pipe, and a drain valve is provided on the drain pipe.

[0016] Preferably, the bottom of the recycled water tank is a V-shaped sludge collection hopper, the bottom of the V-shaped sludge collection hopper is connected to a sludge discharge pipe, and a sludge discharge valve is installed on the sludge discharge pipe.

[0017] This utility model provides a high-recovery-rate water purification system, which has the following beneficial effects:

[0018] 1. In this utility model, both the carbon module and the membrane module are installed in the water purification shell, which has a high degree of integration, reduces the size of the equipment, and saves floor space.

[0019] 2. When the carbon adsorption unit and membrane unit become clogged after a certain period of system operation, the carbon adsorption unit is first backwashed using a booster pump to restore its adsorption effect. Then, the membrane unit is backwashed using an air washing pipeline. Finally, the membrane unit is backwashed using a water washing pipeline to restore the membrane unit's flux, ensure the water supply efficiency and quality of the water purification system, and improve the service life of the water purification system.

[0020] 3. Wastewater generated from forward and reverse washing can be transported to the recycled water tank through the sewage pipe. The wastewater flows upward through the honeycomb inclined tube to remove particulate impurities. The supernatant obtained flows back to the raw water tank from the overflow port at the top of the recycled water tank and can be recycled and reused. The water resource recovery rate is high and raw water is saved.

[0021] 4. In addition, the recycled water tank of this utility model is set inside the raw water tank, which can further save the floor space. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the high recovery rate water purification system of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the water purifier shell of this utility model.

[0024] In the diagram: 101, Municipal water inlet pipe; 102, Raw water pipe; 103, Product water pipe; 104, Water supply pipe; 105, Water washing pipeline; 106, Air washing pipeline; 107, Sewage pipe; 108, Sludge discharge pipe; 1, First inlet valve; 2, Raw water tank; 3, Reclaimed water tank; 4, Carbon assembly; 5, Membrane assembly; 6, Purified water shell; 7, Manifold; 8, Backwash valve; 9, Product water valve; 10, Ozone mixing tank; 11, Water supply pump assembly; 12, Water washing switching valve; 13, Ozone generator; 14, Ejector; 15, Air compressor; 16, Check valve; 17, Air washing switching valve; 18, V-shaped sludge collection hopper; 19, Lifting pump; 20, Sludge discharge valve; 21, V-shaped sludge collection hopper; 22, Sewage discharge valve; 23, Honeycomb inclined tube; 24, Second inlet valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example

[0030] Reference Figure 1-2 A high-recovery-rate water purification system includes a raw water tank 2, a water purification shell 6, a water supply pump set 11, a water washing pipeline 105, and an air washing pipeline 106.

[0031] The inlet of the raw water tank 2 is connected to the municipal water supply network through the municipal water inlet pipe 101, and the outlet of the raw water tank 2 is connected to the inlet of the water purification shell 6 through the raw water pipe 102. A booster pump 19 is installed on the raw water pipe 102. Inside the water purification shell 6, above its inlet, a carbon group 4, a membrane group 5, and a product water pipe 103 are arranged in sequence. The product water pipe 103 is connected to the membrane group 5. Depending on the structure of the membrane group 5, it can be connected to the top or side of the membrane group 5. The product water pipe 103 extends out of the water purification shell 6, and one end is connected to the water supply pump group 11. The water supply pump group 11 supplies water to the user side through the water supply pipe 104. The other end of the product water pipe 103 is connected to the water washing pipe 105 and the air washing pipe 106 respectively.

[0032] The raw water tank 2 is equipped with a recycled water tank 3, and the recycled water tank 3 is equipped with a honeycomb inclined tube 23. The top of the recycled water tank 3 has an overflow port, and the bottom of the water purification shell 6 is connected to the water inlet of the recycled water tank 3 through a sewage pipe 107.

[0033] In use, municipal tap water enters the raw water tank 2 through the municipal water inlet pipe 101 for storage. The water in the raw water tank 2 is then pressurized by the booster pump 19 and transported from the raw water pipe 102 to the water purification shell 6. In the water purification shell 6, after adsorption and filtration by the carbon group 4 and the membrane group 5, it is output through the product water pipe 103 and finally pressurized by the water supply pump group 11 and sent to the water supply pipe 104 to supply water to the user. After adsorption and filtration by the carbon group 4 and the membrane group 5, the municipal tap water has a high water quality.

[0034] In this invention, both the carbon module 4 and the membrane module 5 are housed within the water purification casing 6, resulting in high integration, reduced equipment size, and saved floor space. Preferably, both the carbon module 4 and the membrane module 5 employ a drawer-type structure for easy installation and disassembly.

[0035] When the carbon group 4 and membrane group 5 become clogged after the system has been running for a certain period of time, the carbon group 4 is first flushed with water by increasing the water volume using the booster pump 19 to restore the adsorption effect of the carbon group 4. Then, the membrane group 5 is flushed with air using the air flushing pipeline 106. Finally, the membrane group 5 is flushed with water using the water flushing pipeline 105, thereby restoring the flux of the membrane group 5, ensuring the water supply efficiency and water quality of the water purification system, and improving the service life of the water purification system.

[0036] The wastewater generated from the forward and reverse washing processes can be transported to the recycled water tank 3 via the drain pipe 107. The wastewater flows upward through the honeycomb inclined tube 23 to remove particulate impurities. The resulting supernatant flows back to the raw water tank 2 from the overflow port at the top of the recycled water tank 3, allowing for reuse. This results in a high water recovery rate and saves raw water. Furthermore, the recycled water tank 3 is located inside the raw water tank 2, further saving floor space.

[0037] In this embodiment, the water purification shell 6 is arranged in groups of no less than three groups, the water supply pump group 11 can be composed of one or more water supply pumps, the carbon group 4 uses coconut shell activated carbon, and the membrane group 5 uses plate ultrafiltration membrane.

[0038] In one specific implementation, the water washing pipeline 105 is sequentially provided with an ozone mixing tank 10, a water washing switching valve 12 and an ejector 14, and the ejector 14 is connected to the water supply pipe 104 and the ozone generator 13 through pipelines.

[0039] During water backwashing, water supply pipe 104 provides water, ozone generator 13 provides ozone, and water and ozone are fully mixed in ozone mixing tank 10 after passing through jet injector 14. The increase in ozone can effectively decompose and disinfect organic matter and microorganisms on the surface of membrane module 5, thereby restoring the flux of membrane module 5.

[0040] In one specific implementation, the air washing pipeline 106 is sequentially equipped with an air washing switching valve 17, a check valve 16, and an air compressor 15, and the air compressor 15 generates compressed air to perform air backwashing on the membrane module 5.

[0041] In one specific implementation, the water washing pipeline 105 and the air washing pipeline 106 are connected to the product water pipeline 103 via a manifold 7, and a backwash valve 8 is installed on the manifold 7; a product water valve 9 is installed on the end of the product water pipeline near the water supply pump set 11; a first inlet valve 1 is installed on the municipal water inlet pipeline 101; and a second inlet valve 24 is installed on the raw water pipeline 102. Through the installation of the above various valves, the opening and closing status of each pipeline can be accurately controlled, which facilitates the control of the entire system.

[0042] In one specific implementation, the bottom of the water purification shell 6 is a V-shaped sludge collection hopper 18, which is conducive to collecting sewage. The bottom of the V-shaped sludge collection hopper 18 is connected to the inlet of the recycled water tank 3 through a drain pipe 107, and a drain valve 22 is provided on the drain pipe 107.

[0043] In one specific implementation, the bottom of the recycled water tank 3 is a V-shaped sludge collection hopper 21, which is conducive to collecting sludge. The bottom of the V-shaped sludge collection hopper 21 is connected to a sludge discharge pipe 108, and a sludge discharge valve 20 is provided on the sludge discharge pipe 108. When the water in the recycled water tank 3 reaches a certain concentration ratio, it is discharged into the sewage well of the sewer pipe through the sludge discharge pipe 108.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high recovery rate water purification system, characterized by: The water purifier comprises a raw water tank, a water purification shell, a water supply pump group, a water washing pipeline and an air washing pipeline. The water inlet of the raw water tank is connected with a municipal water pipe network through a municipal water inlet pipe, the water outlet of the raw water tank is connected with the water inlet of the water purification shell through a raw water pipe, a lifting pump is arranged on the raw water pipe, a carbon group, a membrane group and a water production pipe are arranged in the water purification shell in sequence above the water inlet, the water production pipe penetrates out of the water purification shell and is connected with the water supply pump group in one way, the water supply pump group supplies water to the user side through a water supply pipe, and the water production pipe is connected with the water washing pipeline and the air washing pipeline in another way. A reclaimed water tank is arranged in the raw water tank, a honeycomb inclined pipe is arranged in the reclaimed water tank, the top of the reclaimed water tank is provided with an overflow port, and the bottom of the water purification shell is connected with the water inlet of the reclaimed water tank through a sewage pipe.

2. A high recovery rate water purification system as claimed in claim 1, wherein: An ozone mixing tank, a water washing switch valve and a jet device are arranged in sequence on the water washing pipeline, and the jet device is connected with the water supply pipe and an ozone generator through pipelines.

3. A high recovery rate water purification system as claimed in claim 1, wherein: An air washing switch valve, a check valve and an air compressor are arranged in sequence on the air washing pipeline.

4. A high recovery rate water purification system as claimed in claim 1, wherein: The water washing pipeline and the air washing pipeline are connected with the water production pipe through a merging pipe, and a backwashing valve is arranged on the merging pipe.

5. A high recovery rate water purification system as claimed in claim 1, wherein: A water production valve is arranged on the water production pipe close to one end of the water supply pump group.

6. A high recovery rate water purification system as defined in claim 1, wherein: A first water inlet valve is arranged on the municipal water inlet pipe.

7. A high recovery rate water purification system as claimed in claim 1, wherein: A second water inlet valve is arranged on the raw water pipe.

8. A high recovery rate water purification system as defined in claim 1, wherein: The bottom of the water purification shell is a V-shaped sewage collecting hopper, the bottom of the V-shaped sewage collecting hopper is connected with the water inlet of the reclaimed water tank through a sewage pipe, and a sewage valve is arranged on the sewage pipe.

9. A high recovery rate water purification system as defined in claim 1, wherein: The bottom of the reclaimed water tank is a V-shaped sludge collecting hopper, a sludge discharge pipe is connected to the bottom of the V-shaped sludge collecting hopper, and a sludge discharge valve is arranged on the sludge discharge pipe.

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