CN219765006U

CN219765006U - Reverse osmosis system

Info

Publication number: CN219765006U
Application number: CN202321079905.3U
Authority: CN
Inventors: 朱焕宗; 许素金; 李�杰
Original assignee: Tiandiyihao Beverage Co ltd
Current assignee: Tiandiyihao Beverage Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-29
Anticipated expiration: 2033-05-06

Abstract

The utility model provides a reverse osmosis system, and belongs to the technical field of reverse osmosis. The reverse osmosis system comprises a first pump body, a filtering assembly, a second pump body, a reverse osmosis device and a tank body which are sequentially communicated; a first valve is arranged on a pipeline communicated between the first pump body and the filtering component, and the first valve is connected with a first delay device; a drain pipe of the reverse osmosis device is provided with a second valve which is connected with a second delay device; when the liquid level in the tank body reaches a preset position, the first pump body and the second pump body stop running, and the first delayer and the second delayer are started to control the first valve and the second valve to be closed in a delayed mode. The first valve is controlled to be closed in a delayed manner through the first delayer, the second valve is controlled to be closed in a delayed manner through the second delayer, so that the reverse osmosis device is flushed by using the water pressure of source water, and meanwhile, the pollutant concentrated water in the membrane of the reverse osmosis device is flushed, so that the concentration of the concentrated water in the membrane of the reverse osmosis device is reduced, the service life of the membrane is prolonged, and the water quality is improved.

Description

Reverse osmosis system

Technical Field

The utility model relates to the technical field of reverse osmosis, in particular to a reverse osmosis system.

Background

The reverse osmosis in water is a membrane separation technology, and its principle is that raw water passes through reverse osmosis membrane under the action of high pressure, and solvent in water diffuses from high concentration to low concentration so as to attain the goal of separation, purification and concentration. Reverse osmosis can remove bacteria, viruses, colloid, organic matters and soluble salts in water, and is widely used in the industries of medicine, industry, new materials, new energy, cosmetics, food and beverage and the like.

After a period of normal operation of the reverse osmosis system, the membrane elements are contaminated with suspended or poorly soluble salts that may be present in the feed water, most commonly with calcium carbonate precipitation, calcium sulfate precipitation, metal oxide precipitation, silicon precipitation, inorganic or organic precipitation, microorganisms, and the like.

At present, a reverse osmosis system can set a reverse osmosis membrane concentrated water flushing and draining time when the reverse osmosis system is shut down, the system is normally operated and started when the reverse osmosis system is started, a concentrated water discharging valve is synchronously started to properly discharge the concentrated water in the membrane, but the concentrated water in the membrane is not treated when the reverse osmosis membrane is shut down, the reverse osmosis system is shut down for a long time, and membrane fouling and microorganism growth in the membrane can be accelerated to influence the service life of the membrane and the quality of water.

Disclosure of Invention

In view of the above, the present utility model aims to overcome the shortcomings in the prior art, and provide a reverse osmosis system.

The utility model provides the following technical scheme: a reverse osmosis system comprises a first pump body, a filtering component, a second pump body, a reverse osmosis device and a tank body which are communicated in sequence;

a first valve is arranged on a pipeline communicated between the first pump body and the filtering assembly, and the first valve is connected with a first delay device;

a second valve is arranged on the drain pipe of the reverse osmosis device and is connected with a second delay device;

when the liquid level in the tank body reaches a preset position, the first pump body and the second pump body stop running, and the first delayer and the second delayer start, so that the first valve is controlled to be closed in a delayed mode through the first delayer, and the second valve is controlled to be closed in a delayed mode through the second delayer.

In some embodiments of the utility model, the filter assembly comprises a first cylinder, a second cylinder, and a filter in sequential communication;

the liquid inlet of the first cylinder body is communicated with the first pump body through a pipeline;

the liquid outlet of the filter is communicated with the liquid inlet of the second pump body through a pipeline.

Further, a conductivity detector is arranged on the drain pipe to detect the conductivity of the liquid in the drain pipe;

when the first pump body and the second pump body stop running, the conductivity of the liquid in the drain pipe is sigma;

when the time length of stopping the operation of the first pump body and the second pump body is t, the conductivity of the liquid in the drain pipe is sigma 1;

satisfying 0.4xσ1.ltoreq.0.6xσ1.

Further, the first delayer controls the time length of time delay closing of the first valve to be t1, and the second delayer controls the time length of time delay closing of the second valve to be t2;

wherein t1=t2=t.

Further, an ultraviolet lamp is arranged between the tank body and the reverse osmosis device.

Further, a third delayer is arranged on the ultraviolet lamp, so that the ultraviolet lamp is controlled to be turned off in a delayed mode through the third delayer.

Further, the third delayer controls the delay closing time of the ultraviolet lamp to be t3, wherein t3=t.

Further, the first cylinder body is a sand cylinder.

Further, the second cylinder body is a carbon cylinder.

Further, a liquid level probe is arranged on the side wall of the tank body.

Embodiments of the present utility model have the following advantages: the first valve is controlled to be closed in a delayed manner through the first delayer, the second valve is controlled to be closed in a delayed manner through the second delayer, so that external water can flow through the filter assembly, the second pump body and the reverse osmosis device through the first pump body under the action of water pressure of the external water, the reverse osmosis device is flushed by utilizing the water pressure of source water, and meanwhile, the pollutant concentrated water in the membrane of the reverse osmosis device is flushed, so that the concentration of the concentrated water in the membrane of the reverse osmosis device is reduced, the service life of the membrane is prolonged, and the water quality is improved.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a reverse osmosis system according to some embodiments of the present utility model.

Description of main reference numerals:

100-a first pump body; 200-a filter assembly; 300-a second pump body; 400-reverse osmosis unit; 410-a drain pipe; 500-pot body; 600-first valve; 700-a first delayer; 800-a second valve; 900-a second delay; 210-a first cylinder; 220-a second cylinder; 230-a filter; 1000-ultraviolet lamp; 1100-a third delay; 1200-level probe.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, some embodiments of the present utility model provide a reverse osmosis system, which can reduce the concentration of contaminants in a reverse osmosis membrane during each shutdown by implementing a low pressure flushing reverse osmosis membrane technology through tap water pressure (0.2-0.4 MPa) in the shutdown state during the use process of water treatment reverse osmosis, reduce contaminants in concentrated water, such as calcium carbonate precipitation, calcium sulfate precipitation, metal oxide precipitation, silicon precipitation, inorganic or organic precipitation, and the like, and simultaneously, by prolonging the sterilization time of production water, ensure the quality of water, etc., improve the service life of the water treatment reverse osmosis membrane, and reduce the cleaning frequency of acids, alkalis, disinfectants, etc. due to blockage or microorganism overscale.

The reverse osmosis system comprises a first pump body 100, a filter assembly 200, a second pump body 300, a reverse osmosis device 400 and a tank body 500 which are sequentially communicated. The first pump body 100, the filter assembly 200, the second pump body 300, the reverse osmosis device 400, and the tank 500 are all connected by pipes.

Specifically, the first pump body 100 is a water inlet pump, and the water inlet water source pipeline is communicated with the water inlet of the first pump body 100, so that external water can enter the first pump body 100, and the water outlet of the first pump body 100 is communicated with the filter assembly 200 through the pipeline, so that external water is pumped into the filter assembly 200 through the first pump body 100 for pretreatment.

It should be noted that, the filter assembly 200 filters tiny dirt, harmful heavy metals and other harmful substances in the water, and also eliminates the odor and slightly acidifies the water. In addition, the filter assembly 200 of the present utility model is also capable of trapping particles greater than 5 μm to prevent particles greater than 5 μm from entering the reverse osmosis system.

In the present embodiment, the second pump body 300 is a high pressure pump to increase the water pressure by the high pressure pump, thereby increasing the flow rate of water.

The first valve 600 is provided on a pipeline communicating between the first pump body 100 and the filter assembly 200, and it should be noted that the first valve 600 is a pneumatic butterfly valve, and the pneumatic butterfly valve is composed of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve is a pneumatic valve which uses a circular butterfly plate rotating along with a valve rod to perform opening and closing, so as to realize starting action, is mainly used as a cut-off valve, and can also be designed to have the functions of adjusting or cutting off the valve and adjusting.

The pneumatic butterfly valve has the advantages of simple structure, small volume, light weight and low manufacturing cost, and the pneumatic butterfly valve has the characteristics of being particularly remarkable, is arranged in a high-altitude dark channel, is convenient to control and operate through a two-position five-way electromagnetic valve, and can also adjust flow media. The pneumatic butterfly valve with small fluid resistance, large effective flow area when being fully opened, quick and labor-saving opening and closing, and the butterfly plate rotating for 90 degrees can be used for completing the opening and closing, and the butterfly plate hand medium acting forces on two sides of the rotating shaft are nearly equal, and the generated torque directions are opposite, so that the opening and closing moment is small, good sealing can be realized under low pressure, and the butterfly valve sealing material is made of nitrile rubber, fluororubber, edible rubber and tetrafluoro lining, so that the sealing performance is good, wherein the hard sealing butterfly valve is made of soft and hard laminated metal sheets and has the heavy advantages of metal hard sealing and elastic sealing, and has excellent sealing performance under low temperature conditions.

Meanwhile, the first valve 600 is connected with a first delayer 700, and the first delayer 700 is a water inlet valve delayer, so that the first valve 600 is controlled to be closed in a delayed manner through the first delayer 700.

The drain pipe 410 of the reverse osmosis apparatus 400 is provided with a second valve 800, and the second valve 800 is a Solenoid valve, and the Solenoid valve (Solenoid valve) is an industrial device controlled by electromagnetic, is an automation base element for controlling fluid, and belongs to an actuator, and is not limited to hydraulic and pneumatic. For use in industrial control systems to adjust the direction, flow, velocity and other parameters of the medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured.

Meanwhile, a second delay device 900 is connected to the second valve 800, so as to control the second valve 800 to close in a delayed manner through the second delay device 900.

When the liquid level in the tank 500 reaches a preset position, the first pump body 100 and the second pump body 300 stop operating, the first delayer 700 and the second delayer 900 are started to control the first valve 600 to be closed in a delayed manner through the first delayer 700, and control the second valve 800 to be closed in a delayed manner through the second delayer 900. At this time, the water pressure of the water source communicated with the water inlet of the first pump body 100 is used for flushing, the water molecules in the membrane are few, the concentrated water end is basically the primary filtered water, the hardness, microorganisms or impurities are few, and the second valve 800 is used for synchronously discharging the high-concentration water in the flushing membrane, so that the water concentration in the membrane is reduced, the service life of the membrane is prolonged, the number of stages of microorganisms is reduced, and the water quality is improved.

The reverse osmosis principle is that water molecules pass through a reverse osmosis membrane under high osmotic pressure, and other substances (minerals, organic matters and microorganisms) in the water are refused to the outside of the membrane, so that the water cannot be discharged by high-pressure concentrated water through the reverse osmosis membrane.

As shown in fig. 1, in some embodiments of the present utility model, the filter assembly 200 includes a first cylinder 210, a second cylinder 220, and a filter 230, which are sequentially connected, wherein the first cylinder 210 is a sand cylinder, and the sand cylinder eliminates tiny dirt in a pool by using special filtering sand. The sand filter is filled in the cavity of the filter 230 as a medium for removing dirt.

The sand cylinder has the advantages of corrosion resistance, abrasion resistance, ultraviolet resistance, UV resistance, oxidation resistance, O3 resistance, sun protection, high filtering precision, good water outlet quality and high filtering flow rate.

In addition, the second cylinder 220 is a carbon cylinder, which is an activated carbon filter cylinder to deoxidize, remove oil, deodorize, etc. by means of activated carbon, the activated carbon is a very fine carbon particle having very large micropores per unit area, and the micropores have very strong adsorption capacity, and since the surface area of the carbon particle is very large, the impurities can be adsorbed in the micropores of the activated carbon in sufficient contact with the impurities in water, thereby removing the impurities such as the colloid in water. The activated carbon can also adsorb chloride ions and ozone in water, has a certain adsorption capacity on organic matters in water, and can obviously adsorb pigments in water.

Specifically, the filter 230 is a 5 μm filter 230, which is generally used to filter and remove impurities and contaminants from water, and is capable of filtering out substances greater than 5 μm. The filter 230 can effectively remove suspended matters, sediment, sand grains, silt, rust and other impurities in water, and improve the purity and cleanliness of water.

In this embodiment, the liquid inlet of the first cylinder 210 is communicated with the first pump body 100 through a pipe, so that external water is pumped into the first cylinder 210 through the first pump body 100, and the water is pretreated through the first cylinder 210, i.e. tiny dirt in the water is filtered and eliminated.

Meanwhile, the liquid outlet of the first cylinder 210 is communicated with the liquid inlet of the second cylinder 220 through a pipeline, so that the liquid filtered by the first cylinder 210 enters the second cylinder 220, and the liquid is filtered by the second cylinder 220 to perform deoxidation, deoiling and peculiar smell removal treatment on the liquid, so that the filtering quality is improved.

In addition, the liquid outlet of the second cylinder 220 is communicated with the liquid inlet of the filter 230 through a pipe, so that the liquid filtered by the first cylinder 210 and the second cylinder 220 enters the filter 230, and is further filtered by the filter 230, so that substances larger than 5 μm in the liquid are filtered out, and the purity and the cleanliness of water are further improved.

Through communicating the liquid outlet of the filter 230 with the liquid inlet of the second pump body 300 through a pipeline, so that the water filtered by the first cylinder body 210, the second cylinder body 220 and the filter 230 can be pumped into the reverse osmosis device 400 through the second pump body 300, the reverse osmosis device 400 utilizes the water pressure provided by the second pump body 300, so that the water entering the reverse osmosis device 400 can permeate to the fresh water side against the osmotic pressure of the organic cellulose semipermeable membrane, and the purposes of desalting and desalting the water are achieved.

It should be noted that, when the first pump body 100 and the second pump body 300 stop operating, external water passes through the first cylinder 210, the second cylinder 220, the filter 230 and the reverse osmosis system, because the second pump body 300 is not opened, flushing is performed only by the source water pressure (wherein the source water pressure is 0.2-0.4 MPa), the water molecules in the membrane passing through the reverse osmosis device 400 are less, the concentrated water end of the reverse osmosis device 400 is basically primary filtered water, the hardness, microorganisms or impurities are less, and the high concentration water in the flushing membrane is discharged synchronously through the drain pipe 410 of the reverse osmosis device 400, so that the membrane life is prolonged and the quality of the water for improving the microorganism stage is reduced.

As shown in fig. 1, in some embodiments of the present utility model, a conductivity detector (not shown) is provided on the drain pipe 410 to detect the conductivity of the concentrate in the reverse osmosis 400, i.e., to detect the conductivity of the liquid from the drain pipe 410, through the conductivity detector.

Specifically, when the first pump body 100 and the second pump body 300 stop operating, the conductivity of the liquid in the drain pipe 410 is σ, that is, at this time, the conductivity of the liquid in the drain pipe 410 is maximized.

When the time period for stopping the operation of the first pump body 100 and the second pump body 300 is t, the conductivity of the liquid in the drain pipe 410 is σ1, it should be noted that, when the operation of the first pump body 100 and the second pump body 300 is stopped, the tap water pressure flushes the reverse osmosis device, the concentrate of the pollutants in the membrane of the reverse osmosis device 400 is flushed, the concentration of the concentrate in the membrane of the reverse osmosis device 400 is reduced, and when the conductivity of the liquid in the membrane of the reverse osmosis device is satisfied, 0.4xσ1 is less than or equal to 0.6xσ1, the first valve 600 and the second valve 800 are closed.

Specifically, the first delayer 700 controls the time period for the first valve 600 to be turned off in a delayed manner to be t1, and the second delayer 900 controls the time period for the second valve 800 to be turned off in a delayed manner to be t2, where t1=t2=t, so that when the first pump body 100 and the second pump body 300 stop running, external water can enter the reverse osmosis device 400 through the first pump body 100, the filter assembly 200 and the second pump body 300 under the action of the own water pressure, respectively, so as to promote the external source water pressure to wash the concentrated water in the membrane of the reverse osmosis device 400, thereby reducing the concentration of the concentrated water in the membrane of the reverse osmosis device 400.

It should be noted that, the value of the time period t1 for which the first valve 600 is closed is determined according to the time period, and the conductivity of the discharged liquid is confirmed through the drain pipe 410 of the reverse osmosis apparatus 400, for example, when t1=30s, the conductivity of the liquid discharged from the drain pipe 410 is reduced from 1000 mu s/cm to 500 mu s/cm by 50%, and 0.4xσ.ltoreq.σ1.ltoreq.0.6xσ is satisfied, wherein the conductivity of the tap water is 300 mu s/cm, so that the time delay is not significant, i.e. the time delay is 30s.

As shown in fig. 1, in some embodiments of the present utility model, an ultraviolet lamp 1000 is provided between the tank 500 and the reverse osmosis unit 400, and the ultraviolet lamp 1000 is an ultraviolet sterilizing lamp to sterilize water by the ultraviolet lamp 1000.

The ultraviolet sterilizing lamp utilizes ultraviolet rays emitted by the mercury lamp to realize the sterilizing function, and the ultraviolet sterilizing technology has sterilizing efficiency which is incomparable with other technologies, and the sterilizing efficiency can reach 99% -99.9%. Scientific principle of ultraviolet disinfection: mainly acts on the DNA of the microorganism to destroy the structure of the DNA, so that the microorganism loses the functions of reproduction and self-replication, thereby achieving the aim of sterilization and disinfection. Ultraviolet sterilization has the advantages of no color, no smell and no chemical substance left.

Further, in some embodiments of the present utility model, a third delay device 1100 is provided on the ultraviolet lamp 1000, so as to control the ultraviolet lamp 1000 to be turned off in a delayed manner by the third delay device 1100. The third delay device 1100 is an ultraviolet lamp 1000 switch Guan Yanshi device, so that the third delay device 1100 controls the ultraviolet lamp 1000 to be turned off in a delayed manner.

Because part of water molecules can pass through the reverse osmosis membrane, the ultraviolet lamp 1000 is turned on by prolonging the opening of the ultraviolet lamp 1000, so that the reverse osmosis water is sterilized by the ultraviolet lamp 1000, the quality of the reverse osmosis water is ensured, and the service life of the membrane and the quality of water are improved as a whole.

In some embodiments of the present utility model, the third delay 1100 controls the time period for which the ultraviolet lamp 1000 is turned off to be t3, where t=t3.

It can be appreciated that t=t1=t2=t3, so that the sterilization duration of the ultraviolet lamp 1000 is equal to the duration of the external water flushing the reverse osmosis device 400, so that the service life of the membrane in the reverse osmosis device 400 is improved as a whole, the energy efficiency is reduced, and the cost is saved while the quality of the reverse osmosis water is ensured.

As shown in fig. 1, in some embodiments of the present utility model, a liquid level probe 1200 is provided at a sidewall of the tank 500 to detect a liquid level in the tank 500 through the liquid level probe 1200.

Specifically, when the liquid level in the tank 500 reaches the preset position, the detected liquid level is sent to the control system through the liquid level probe 1200, and the control system controls the first pump body 100 and the second pump body 300 to stop running, so as to avoid water overflow in the tank 500, thereby improving the stability of the liquid level.

The reverse osmosis device 400 according to any of the above embodiments is formed by connecting a plurality of reverse osmosis membranes in series, and the number of reverse osmosis membranes may be specifically set according to the actual situation.

Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. The reverse osmosis system is characterized by comprising a first pump body, a filtering assembly, a second pump body, a reverse osmosis device and a tank body which are communicated in sequence;

2. The reverse osmosis system of claim 1, wherein the filtration assembly comprises a first cylinder, a second cylinder, and a filter in sequential communication;

3. The reverse osmosis system of claim 1, wherein a conductivity detector is provided on the drain to detect the conductivity of the liquid in the drain;

satisfying 0.4xσ1.ltoreq.0.6xσ1.

4. A reverse osmosis system according to claim 3, wherein the first delay means controls the time period for which the first valve is delayed to close to be t1, and the second delay means controls the time period for which the second valve is delayed to close to be t2;

wherein t1=t2=t.

5. The reverse osmosis system of claim 3 or 4, wherein an ultraviolet lamp is disposed between the tank and the reverse osmosis vessel.

6. The reverse osmosis system of claim 5, wherein a third delay is provided on the ultraviolet lamp to control delayed turn-off of the ultraviolet lamp via the third delay.

7. The reverse osmosis system of claim 6, wherein the third delay controls the ultraviolet lamp to be turned off for a period of time t3, wherein t3=t.

8. The reverse osmosis system of claim 2, wherein the first cylinder is a sand cylinder.

9. The reverse osmosis system of claim 2, wherein the second cylinder is a carbon cylinder.

10. The reverse osmosis system of any one of claims 1 to 4, wherein the side wall of the tank is provided with a liquid level probe.