CN206705745U - Raw water counter-infiltration cleaning system - Google Patents

Abstract

It the utility model is related to water purification, a kind of raw water counter-infiltration cleaning system is provided, including water inlet pipe and pure water collection case, raw water valve is provided with water inlet pipe, also include first-stage reverse osmosis component, first-stage reverse osmosis component includes the first counter-infiltration chamber and first-stage reverse osmosis film, first counter-infiltration chamber has the first water inlet, first pure water exports and the first concentrated water drainage mouth, first concentrated water drainage mouth is connected with delivery pipe, delivery pipe is provided with concentrated water detector and the first magnetic valve, and the wherein Single port of delivery pipe connection first circulation pipeline, the another port of first circulation pipeline is communicated to water inlet pipe, second solenoid valve and check valve are provided with first circulation pipeline, and first magnetic valve concentrated water detector is electrically connected with second solenoid valve.The utility model detects the concentration of one-level concentrated water by concentration detector, not only can thus judge whether first-stage reverse osmosis film cleans, can also automatically select whether it needs to be recycled according to concentration index, can effectively improve raw water utilization rate.

Description

Raw water reverse osmosis purification system

technical field

The utility model relates to water purification, in particular to a raw water reverse osmosis purification system.

Background technique

Reverse osmosis, also known as reverse osmosis, refers to a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. Because it is opposite to the direction of natural infiltration, it is called reverse osmosis. According to the different osmotic pressures of various materials, the reverse osmosis pressure greater than the osmotic pressure can be used, that is, the reverse osmosis method, to achieve the purpose of separation, extraction, purification and concentration. Reverse osmosis water treatment equipment uses the principle of reverse osmosis to purify and purify water. It is used in electronics, medicine, seawater desalination and other industries, such as: preparation of space water, pure water, distilled water, etc.; wine manufacturing and water reduction; Pre-preparation of water for medicine, electronics and other industries; preparation of hemodialysis water, cleaning and disinfection water, etc.; concentration, separation, purification and water distribution preparation of chemical processes; boiler supply water desalination and soft water; desalination of seawater and brackish water; papermaking, electroplating, Water and wastewater treatment in printing and dyeing, food and other industries; advanced treatment of urban sewage. However, in the existing purification system, because reverse osmosis tends to generate a large amount of concentrated water discharge, the utilization rate of raw water is low, and it is not very convenient to clean the reverse osmosis membrane.

Utility model content

The purpose of the utility model is to provide a raw water reverse osmosis purification system, aiming at solving the problem of low utilization rate of raw water in the existing reverse osmosis purification system.

The utility model is achieved in that:

The embodiment of the utility model provides a raw water reverse osmosis purification system, which includes a water inlet pipe and a pure water collection box. The water inlet pipe is provided with a raw water valve, and also includes a first-stage reverse osmosis component. The first-stage reverse osmosis component includes a first-stage reverse osmosis component A reverse osmosis chamber and a first-stage reverse osmosis membrane arranged in the first reverse osmosis chamber, the first reverse osmosis chamber has a first water inlet connected to the water inlet pipe, a water inlet connected to the pure water collection tank The first pure water outlet connected to the inlet and the first concentrated water outlet for discharging the filtered concentrated water, the first concentrated water outlet is connected with a discharge pipe, and the discharge pipe is provided with a concentrated water detector and installed on the The first solenoid valve at the discharge pipe port, and the discharge pipe communicates with one port of the first circulation pipeline between the concentrated water detector and the first solenoid valve, and the first circulation pipeline The other port is connected to the water inlet pipe, a second solenoid valve and a one-way valve are arranged on the first circulation pipe, and both the first solenoid valve and the second solenoid valve are electrically connected to the concentrated water Detector.

Further, it also includes a secondary reverse osmosis component, the secondary reverse osmosis component includes a second reverse osmosis chamber and a secondary reverse osmosis membrane arranged in the second reverse osmosis chamber, the second reverse osmosis chamber has A second water inlet connected to the first pure water outlet, a second pure water outlet connected to the inlet of the pure water collection tank, and a second concentrated water outlet for discharging filtered concentrated water.

Further, it also includes a second circulation pipeline, the second circulation pipeline communicates with the water inlet pipe and the second concentrated water outlet.

Further, it also includes a cleaning pipeline, the cleaning pipeline communicates with the outlet of the pure water collection tank and the water inlet pipe, and a third electromagnetic valve is arranged on the cleaning pipeline.

Further, a liquid level sensor is provided in the pure water collection tank, and the liquid level sensor is electrically connected to the raw water valve.

Further, the first-stage reverse osmosis module further includes a first-stage high-pressure pump, and the first-stage high-pressure pump is connected in series on the flow path between the first reverse osmosis chamber and the water inlet pipe.

Further, the primary high-pressure pump is also connected in series to the cleaning pipeline.

The utility model has the following beneficial effects:

In the purification system of the present utility model, when producing water, after opening the raw water valve, the raw water enters the first-stage reverse osmosis component for reverse osmosis filtration, and the first-stage pure water produced can be exported from the first pure water outlet, while the higher-concentration The first-level concentrated water can be discharged from the first concentrated water outlet and enter the discharge pipe, and the first-level concentrated water is detected by the concentrated water detector. The solenoid valve is closed, and the primary concentrated water is directly discharged from the discharge pipe. When the concentration of concentrated water is relatively low, the first solenoid valve is closed, the second solenoid valve is opened, and the primary concentrated water passes through the first circulation pipeline. It enters the water inlet pipe and passes through the primary reverse osmosis component to permeate and filter again. Through this structure, the waste of raw water in the purification system can be effectively avoided, the utilization rate of raw water can be improved, and it can be effectively judged whether there are too many impurities accumulated in the primary reverse osmosis membrane of the primary reverse osmosis module.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is a schematic flow diagram of a raw water reverse osmosis purification system provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1, the embodiment of the utility model provides a reverse osmosis purification system for raw water, which includes a water inlet pipe 1 and a pure water collection box 2. The raw water enters the purification system through the water inlet pipe 1, and then is prepared as pure water and collected into the pure water collection box 2, a raw water valve 11 is provided on the water inlet pipe 1, and the on-off of the water inlet pipe 1 can be controlled by the raw water valve 11. When the water is produced, the raw water valve 11 is opened; Including a first-stage reverse osmosis module 3, which includes a first reverse osmosis chamber 31 and a first-stage reverse osmosis membrane arranged in the first reverse osmosis chamber 31, the first reverse osmosis chamber 31 has a first water inlet communicated with the water inlet pipe 1 311. The first pure water outlet 312 connected to the inlet of the pure water collection tank 2 and the first concentrated water outlet 313 for discharging the filtered concentrated water. The raw water enters the first reverse osmosis chamber 31 through the first water inlet 311 Afterwards, it is permeated and filtered through the primary reverse osmosis membrane, and the obtained primary pure water is discharged through the first pure water outlet 312, while the filtered primary concentrated water is discharged from the first reverse osmosis chamber 31 through the first concentrated water discharge port 313. , the first concentrated water outlet 313 is connected to the discharge pipe 32, the primary concentrated water enters the discharge pipe 32 from the first concentrated water outlet 313, and the discharge pipe 32 is provided with a concentrated water detector 321 and a first solenoid valve 322 , can detect the concentration of the primary concentrated water entering the discharge pipe 32, the first solenoid valve 322 is close to the port of the discharge pipe 32, and after the first solenoid valve 322 is opened, the primary concentrated water can be directly discharged from the port of the discharge pipe 32 Purification system, and the structure of the discharge pipe 32 between the concentrated water detector 321 and the first electromagnetic valve 322 communicates with one port of a first circulation pipeline 33, and the other port of the first circulation pipeline 33 communicates with The water inlet pipe 1 and the first circulation pipeline 33 are provided with a second solenoid valve 331 and a one-way valve 332. The second solenoid valve 331 is used to control the on-off of the first circulation pipeline 33, and the one-way valve 332 is used to control the first circulation pipeline. A circulation pipeline 33 flows in one direction along the discharge pipe 32 to the water inlet pipe 1, that is, the raw water in the water inlet pipe 1 is difficult to flow to the discharge pipe 32 through the first circulation pipe 33, and the first solenoid valve 322 Both the second solenoid valve 331 and the second solenoid valve 331 are electrically connected to the above-mentioned concentrated water detector 321 , and the first solenoid valve 322 and the second solenoid valve 331 can be controlled to work according to the detection result of the concentrated water detector 321 . In the present utility model, when producing water, the raw water valve 11 is opened, and the raw water enters the first reverse osmosis cavity 31 through the water inlet pipe 1 for reverse osmosis purification, and the first-grade pure water produced is discharged from the first pure water outlet 312, and the first-grade pure water The pure water can be purified again, or stored in the pure water collection tank 2, and the filtered primary concentrated water is discharged from the first concentrated water outlet 313 to the discharge pipe 32, and the concentrated water detector 321 detects the primary concentrated water. concentration of the concentrated water, and when the concentration of the primary concentrated water is high, the first electromagnetic valve 322 is opened, and the second electromagnetic valve 331 is closed at the same time, and the primary concentrated water is directly discharged from the port of the discharge pipe 32 to the outside of the purification system, Conversely, when the detected concentration of the primary concentrated water is low, the first solenoid valve 322 is closed, the second solenoid valve 331 is opened, and the primary concentrated water enters the water inlet pipe 1 through the first circulation pipeline 33 for further reverse osmosis purification. In the above work process, the first-level concentrated water can be repeatedly purified according to the determined concentration, which can effectively improve the utilization rate of raw water and avoid large waste. On the other hand, it can also be judged according to the detection results of the concentrated water detector 321 Whether the primary reverse osmosis membrane has accumulated a lot of impurities, and then judge whether it needs to be cleaned.

Optimizing the above embodiment, the purification system also includes a secondary reverse osmosis component 4, the secondary reverse osmosis component 4 includes a second reverse osmosis chamber 41 and a secondary reverse osmosis membrane located in the second reverse osmosis chamber 41, the second reverse osmosis The permeation chamber 41 has a second water inlet 411 communicated with the first pure water outlet 312 of the primary reverse osmosis module 3, a second pure water outlet 412 communicated with the inlet of the pure water collection tank 2, and a second pure water outlet 412 for discharging filtered concentrated water. The second concentrated water outlet 413, the structure of the primary reverse osmosis module 3 and the secondary reverse osmosis module 4 are similar, but the two are different in the way of flow path connection. In this embodiment, the primary pure water produced by the primary reverse osmosis component 3 enters the secondary reverse osmosis component 4 for reverse osmosis purification again, and then high-quality secondary pure water can be obtained, and the secondary pure water can be directly stored in In the pure water collection tank 2, the purification quality of the purification system can be improved through the secondary reverse osmosis component 4. Usually, the purification system also includes a second circulation pipeline 42, the second circulation pipeline 42 is connected to the water inlet pipe 1 and the second concentrated water outlet 413, because the concentration of the secondary concentrated water is relatively low, it is absorbed by the second circulation pipeline All the channels 42 flow into the water inlet pipe 1, so that the secondary concentrated water enters the primary reverse osmosis module 3 again for purification, further improving the utilization rate of raw water. Certainly, a one-way valve 421 should also be provided on the second circulation pipeline 42 , so that it is difficult for the raw water to flow to the secondary reverse osmosis module 4 through the second circulation pipeline 42 .

Further, the purification system also includes a cleaning pipeline 21, the cleaning pipeline 21 communicates with the outlet of the pure water collection tank 2 and the water inlet pipe 1, and a third electromagnetic valve 211 is arranged on the cleaning pipeline 21, through which the third electromagnetic valve The valve 211 can control the on-off of the cleaning pipeline 21 , so that the pure water in the pure water collection tank 2 can be discharged to the primary reverse osmosis component 3 . In the process of reverse water production, a large amount of impurities will accumulate on the primary reverse osmosis membrane of the primary reverse osmosis module 3. For example, when the concentration detector detects that the concentration of the primary concentrated water is close to the concentration of the raw water, it indicates that the primary The purification efficiency of the reverse osmosis module 3 is very low. At this time, the raw water valve 11 can be automatically closed, and part of the pure water in the pure water collection tank 2 can enter the water inlet pipe 1 through the cleaning pipeline 21, and then flush the primary reverse osmosis membrane. The cleaning efficiency is very high, and this cleaning method can be carried out online, which is simple and convenient.

To optimize the above embodiment, a raw water valve 11 is provided on the water inlet pipe 1 , and a liquid level sensor electrically connected to the raw water valve 11 is provided in the pure water collection tank 2 . In this embodiment, the liquid level in the pure water collection tank 2 is set to three heights, which are high liquid level, middle liquid level and low liquid level respectively, and when the liquid level sensor measures the liquid level in the pure water collection tank 2 When it is lower than the middle liquid level, the liquid level sensor transmits the information to the raw water valve 11, the raw water valve 11 is automatically opened, and the raw water is injected into the water inlet pipe 1 and gradually prepared by the first-stage reverse osmosis module 3 and the second-stage reverse osmosis module 4. Pure water, otherwise when the liquid level sensor detects that the pure water liquid level in the pure water collecting tank 2 reaches the high liquid level, now the raw water valve 11 should be automatically closed, thereby stopping the preparation of the secondary pure water.

Further, the first-stage reverse osmosis module 3 also includes a first-stage high-pressure pump 34 , and the first-stage high-pressure pump 34 is connected in series on the flow path between the first reverse osmosis chamber 31 and the water inlet pipe 1 . In this embodiment, the primary high-pressure pump 34 is a power element, and the raw water entering the water inlet pipe 1 can be filtered and purified sequentially along the purification flow path through the primary high-pressure pump 34, and then the prepared secondary pure water is stored in a pure In the water collection tank 2. On the other hand, the first-stage high-pressure pump 34 is also connected in series to the cleaning pipeline 21, which can also be used as the power element of the cleaning pipeline 21, that is, when using pure water to flush the first-stage reverse osmosis module 3, through the first-stage The high-pressure pump 34 can make the pure water flow along the cleaning pipeline 21, and then realize the cleaning, of course, when cleaning or producing water.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (7)

1. A raw water reverse osmosis purification system, comprising a water inlet pipe and a pure water collection box, the water inlet pipe is provided with a raw water valve, characterized in that: it also includes a first-stage reverse osmosis assembly, and the first-stage reverse osmosis assembly includes a first-stage reverse osmosis assembly A reverse osmosis chamber and a first-stage reverse osmosis membrane arranged in the first reverse osmosis chamber, the first reverse osmosis chamber has a first water inlet connected to the water inlet pipe, a water inlet connected to the pure water collection tank The first pure water outlet connected to the inlet and the first concentrated water outlet for discharging the filtered concentrated water, the first concentrated water outlet is connected with a discharge pipe, and the discharge pipe is provided with a concentrated water detector and installed on the The first solenoid valve at the discharge pipe port, and the discharge pipe communicates with one port of the first circulation pipeline between the concentrated water detector and the first solenoid valve, and the first circulation pipeline The other port is connected to the water inlet pipe, a second solenoid valve and a one-way valve are arranged on the first circulation pipe, and both the first solenoid valve and the second solenoid valve are electrically connected to the concentrated water Detector. 2. The raw water reverse osmosis purification system according to claim 1, characterized in that: it also includes a secondary reverse osmosis assembly, the secondary reverse osmosis assembly includes a second reverse osmosis chamber and is arranged in the second reverse osmosis chamber The secondary reverse osmosis membrane inside, the second reverse osmosis chamber has a second water inlet communicated with the first pure water outlet, a second pure water outlet communicated with the inlet of the pure water collection tank, and a discharge filter The second concentrated water outlet of the rear concentrated water. 3 . The raw water reverse osmosis purification system according to claim 2 , further comprising a second circulation pipeline, and the second circulation pipeline communicates with the water inlet pipe and the second concentrated water outlet. 4 . 4. The raw water reverse osmosis purification system according to claim 1, further comprising a cleaning pipeline, the cleaning pipeline is connected to the outlet of the pure water collection tank and the water inlet pipe, and the cleaning pipeline is A third solenoid valve is provided. 5. The raw water reverse osmosis purification system according to claim 1, characterized in that: a liquid level sensor is arranged in the pure water collection tank, and the liquid level sensor is electrically connected to the raw water valve. 6. The raw water reverse osmosis purification system as claimed in claim 4, characterized in that: the first-stage reverse osmosis module further comprises a first-stage high-pressure pump, and the first-stage high-pressure pump is connected in series with the first reverse osmosis chamber and the on the flow path between the inlet pipes. 7. The raw water reverse osmosis purification system according to claim 6, wherein the primary high-pressure pump is also connected in series to the cleaning pipeline.