CN220609837U - Reverse osmosis device easy to clean - Google Patents

Abstract

The utility model discloses an easy-to-clean reverse osmosis device which comprises a reverse osmosis element, a water inlet pipe, a middle-end CIP water inlet, a middle-end CIP water outlet, a concentrated water discharge pipe and a connecting pipe, and is characterized in that the anti-osmosis device consists of a plurality of reverse osmosis elements, and the connecting pipes are respectively connected with the plurality of reverse osmosis elements; the water inlet pipe and the middle-end CIP water inlet are respectively connected with the CIP cleaning device; the middle end CIP water outlet is communicated with the water inlet pipe; the concentrated water discharge pipes are respectively communicated with the middle-end CIP water inlet. When the reverse osmosis membrane cleaning device is used for cleaning, the internal pressure can be kept balanced, the cleaning effect is obviously improved on the premise of not improving the cleaning pressure, and the damage to the reverse osmosis membrane in the reverse osmosis device and the energy consumption required during cleaning are reduced.

Description

Reverse osmosis device easy to clean

Technical Field

The utility model relates to the technical field of reverse osmosis water purification, in particular to a reverse osmosis device easy to clean.

Background

After a period of operation of the reverse osmosis unit to treat the wastewater, the reverse osmosis elements are contaminated with suspended or poorly soluble salts that may be present in the feed water, the most common of these being calcium carbonate precipitates, calcium sulfate precipitates, gold (iron, manganese, copper, nickel, aluminum, etc.) oxide precipitates, silicon precipitates, inorganic or organic precipitation mixtures, NOM natural organic substances, synthetic organic substances (e.g., scale inhibitors/dispersants, cationic polyelectrolytes), microorganisms (algae, mold, fungi), etc. The nature of the pollution and the rate of pollution depend on various factors such as the quality of the feedwater and the recovery of the system. Often contamination is progressive, if not controlled as early as possible, and the contamination will damage the membrane element in a relatively short period of time. When the membrane element has been validated as contaminated, either before long-term shutdown or as regular routine maintenance, cleaning of the membrane element is recommended.

When cleaning equipment, a CIP cleaning system is used. The working principle is that the opening and closing of the steam valve are controlled by measuring the temperature through the thermal resistor; the opening and closing of the water valve is controlled by measuring the liquid level through the pressure transmitter; the opening and closing of the alkali and acid diaphragm valves are controlled by the conductivity measured by the conductivity meter. The whole control flow comprises water heating, alkali liquor cleaning, hot water cleaning, acid liquor cleaning and hot water cleaning.

When the membrane is cleaned, a CIP port reserved by the system is used. Is connected with a CIP cleaning system. The CIP purge tank is currently in common use, i.e. the pipe is welded to the CIP port during manufacture, a valve is provided to facilitate purging) and the CIP purge port prior to the reverse osmosis booster pump is purged into the reverse osmosis system. And then is discharged from the reverse osmosis concentrated water outlet and the water producing outlet. Thereby achieving the effect of cleaning the inside of the membrane.

Most of reverse osmosis membrane cleaning structures in the market at present are characterized in that water is fed from the front end and discharged from the rear end. Although the aim of cleaning can be achieved, the cleaning effect is not satisfactory. And the energy consumption is higher. The cleaning cost is high. Therefore, the design concept that water is fed from the front end, water is discharged from the middle end, and water is discharged from the rear end is adopted. Relative to the former. Our advantage is that the pressure during reverse osmosis cleaning can be balanced. And the sectional cleaning can bring better equipment production experience for users with smaller energy consumption, faster cleaning efficiency and higher cleaning effect.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the easy-to-clean reverse osmosis device, which realizes sectional cleaning and reduces the internal pressure of the device during cleaning, thereby reducing the energy consumption of the reverse osmosis device during cleaning and reducing the damage to the device during cleaning.

The utility model is realized by the following technical scheme:

the utility model provides an easy abluent reverse osmosis unit, includes reverse osmosis component, inlet tube, well end CIP water inlet, well end CIP outlet and dense water discharge pipe and connecting tube, its characterized in that, the anti-osmosis unit comprises a plurality of reverse osmosis components, and the connecting tube is connected with a plurality of reverse osmosis components respectively; the water inlet pipe and the middle-end CIP water inlet are respectively connected with the CIP cleaning device; the middle end CIP water outlet is communicated with the water inlet pipe; the concentrated water discharge pipe is communicated with the middle-end CIP water inlet.

Further, a butterfly valve is arranged on the connecting pipeline, when the reverse osmosis device needs to be cleaned, the butterfly valve is closed, and the butterfly valve divides the reverse osmosis device into two cleaning sections.

Further, the water inlet pipe comprises a front end CIP water inlet which is used for being connected with the cleaning device.

Further, the cleaning fluid in the cleaning device enters the reverse osmosis device from the front end CIP water inlet, flows through one of the cleaning sections and is discharged from the middle end CIP water outlet.

Further, the cleaning liquid in the cleaning device enters the reverse osmosis device from the water inlet at the middle end, flows through the other cleaning section and is discharged from the concentrated water discharge pipe.

Further, the reverse osmosis device further comprises a booster pump, and the booster pump is arranged on the water inlet pipe.

Further, the reverse osmosis device also comprises a water production pipe, and a flowmeter is arranged on the water production pipe.

Compared with the prior art, the utility model has the advantages that:

1. through the setting of butterfly valve, divide into a plurality of washings with whole reverse osmosis unit, reduce abluent energy consumption and the internal pressure when reverse osmosis unit washs.

2. The sectional cleaning of the reverse osmosis device is realized by additionally arranging the middle-end CIP water inlet and the middle-end CIP water outlet, so that the internal pressure of the reverse osmosis device during cleaning is balanced, and the damage to the reverse osmosis membrane is reduced.

Drawings

FIG. 1 is a schematic view of a washable reverse osmosis unit according to an embodiment of the present utility model;

FIG. 2 is a rear view of a cleanable reverse osmosis unit according to one embodiment of the utility model;

FIG. 3 is a flow chart of a cleaning process of an easy-to-clean reverse osmosis apparatus according to an embodiment of the utility model.

Wherein:

1000-reverse osmosis device, 100-upper cleaning section, 200-lower cleaning section;

1-a middle-end CIP water inlet;

2-middle end CIP drain port;

3-a water inlet pipe and 31-a front end CIP water inlet;

4-a concentrated water discharge pipe and a 41-CIP concentrated water discharge outlet;

5-connecting pipelines and 51-butterfly valves;

6-a water producing pipe;

7-reverse osmosis elements;

8-a booster pump; 9-flowmeter.

Detailed Description

The technical scheme of the utility model is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings. In the description of the present utility model, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. refer to the azimuth or positional relationship based on the azimuth or positional relationship shown in the drawings. 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 at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 2, an easy-to-clean reverse osmosis apparatus 1000 according to an embodiment of the present utility model includes a reverse osmosis element 7, a water inlet pipe 3, a middle CIP water inlet 1, a middle CIP water outlet 2, a concentrate water outlet 4, and a connection pipe 5, wherein the reverse osmosis apparatus 1000 is composed of a plurality of reverse osmosis elements 7, and the connection pipe 5 is connected to a plurality of the reverse osmosis elements 7, respectively; the water inlet pipe 3 and the middle-end CIP water inlet 1 are respectively connected with a CIP cleaning device; the middle CIP water outlet 2 is communicated with the water inlet pipe 3; the concentrated water discharge pipe 4 is communicated with the middle-end CIP water inlet 1.

In particular, the reverse osmosis apparatus 1000 is generally composed of a plurality of reverse osmosis elements 7, a water inlet pipe 3, a water producing pipe 6, and a concentrate discharge pipe 4. When the reverse osmosis apparatus 1000 is operated, the middle CIP water inlet 1 is closed and the middle CIP water outlet 2 is closed, and the butterfly valve 51 is in an open state. The water inlet pipe 3, the concentrated water discharge pipe 4 and the water producing pipe 6 are communicated.

Further, the reverse osmosis apparatus 1000 further comprises a connecting pipe 5, a butterfly valve 51, a middle CIP water inlet 1 and a middle CIP water outlet 2. The connection pipe 5 connects all the reverse osmosis elements 7 in the reverse osmosis apparatus 1000, and the butterfly valve 51 is provided at the connection pipe 4, and when the reverse osmosis apparatus 1000 needs to be cleaned, the butterfly valve 51 is closed, thereby dividing the entire reverse osmosis apparatus 1000 into upper and lower cleaning sections.

As shown in fig. 1 to 2, the water inlet pipe 3 comprises a front CIP water inlet 31.

In particular, reverse osmosis apparatus 1000 includes a water inlet pipe 3, with water inlet pipe 3 being connected to one side of lower wash section 200. The front end CIP water inlet 31 is arranged on the water inlet pipe 3, the front end CIP water inlet 31 is connected with the cleaning device, and cleaning fluid enters from the front end CIP water inlet 31 and flows through the water inlet pipe 3 to enter the lower cleaning section 200.

Further, the reverse osmosis apparatus 1000 includes a middle CIP drain port 2, and the middle CIP drain port 2 is connected to the other side of the lower cleaning stage 200. When the lower cleaning section 200 starts to be cleaned, cleaning liquid in the cleaning device enters from the front end CIP water inlet 31, flows through the water inlet pipe 3 and enters the lower cleaning section 200, and is discharged from the middle end CIP water outlet 2 after cleaning is completed.

Because the reverse osmosis device 1000 is segmented, the pressure and energy consumption required during cleaning are reduced.

With continued reference to fig. 1-2, the reverse osmosis apparatus 1000 includes a mid-end CIP water inlet 1, the mid-end CIP water inlet 1 being in communication with the upper wash section 100. After the lower cleaning section 200 is cleaned, the middle CIP water inlet 1 is connected with the cleaning device, and the cleaning of the upper cleaning section 200 is started.

Further, the reverse osmosis apparatus 1000 includes a concentrate discharge pipe 4, the concentrate discharge pipe 4 being connected to one side of the upper cleaning stage 100, the concentrate discharge pipe 4 including a CIP concentrate discharge port 41. When the upper cleaning section 100 starts to be cleaned, cleaning liquid in the cleaning device enters the upper cleaning section 100 from the middle-end CIP water inlet 1, and after the cleaning is completed, the cleaning liquid is discharged from the CIP concentrate water outlet 41.

Therefore, the sectional cleaning function of the reverse osmosis device 1000 is realized, so that the internal pressure of the reverse osmosis device 1000 is balanced during cleaning, the cleaning effect is improved, the cleaning pressure is not required to be increased, and the cleaning energy consumption and the damage to the reverse osmosis element 7 are reduced.

In addition, the reverse osmosis apparatus 1000 further includes a booster pump 8 and a flow meter 9. A booster pump 8 is provided to the water inlet pipe 3 for pressurizing the high concentration water so that the water flow passes through the reverse osmosis membrane. A flow meter 9 is provided in the water production pipe 6 for detecting the flow of liquid in the water production pipe 6 during production and/or cleaning.

As shown in fig. 3, when the reverse osmosis unit reaches the necessary condition for cleaning, i.e., the system produced water is closed, the front CIP water inlet 31 is connected by the CIP cleaning unit water inlet (the CIP cleaning tank needs to open the valve). The butterfly valve 51 is closed, the middle CIP water outlet 2 is opened, and reverse osmosis cleaning of the lower section is performed. After the lower section is cleaned, the water inlet of the CIP vehicle is connected with the water inlet 1 of the middle-end CIP, the CIP concentrated water outlet 41 is opened, and the upper section is cleaned by reverse osmosis. After the upper cleaning is finished, the connection is disconnected, and the front end CIP water inlet 31, the CIP concentrated water outlet 41, the middle end CIP water outlet 2 and the middle end CIP water inlet are closed. After the cleaning is completed, the butterfly valve 51 is opened, and the production of the apparatus is continued.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the 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. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (3)

1. An easy-to-clean reverse osmosis device comprises a reverse osmosis element (7), a water inlet pipe (3), a middle-end CIP water inlet (1), a middle-end CIP water outlet (2), a concentrated water discharge pipe (4) and a connecting pipeline (5), and is characterized in that,

the reverse osmosis device (1000) is composed of a plurality of reverse osmosis elements (7), and the connecting pipeline (5) is respectively connected with the plurality of reverse osmosis elements (7);

the water inlet pipe (3) and the middle-end CIP water inlet (1) are respectively connected with a cleaning device;

the middle-end CIP water outlet (2) is communicated with the water inlet pipe (3);

the concentrated water discharge pipe (4) is communicated with the middle-end CIP water inlet (1);

the water inlet pipe (3) comprises a front-end CIP water inlet (31), and the front-end CIP water inlet (31) is used for being connected with the cleaning device; the concentrated water discharge pipe (4) comprises a CIP concentrated water discharge outlet (41);

be provided with butterfly valve (51) on connecting tube (5), when reverse osmosis unit (1000) need wash, butterfly valve (51) are closed, butterfly valve (51) will reverse osmosis unit (1000) are separated into two upper and lower cleaning sections.

2. The easily washable reverse osmosis unit according to claim 1,

the reverse osmosis device (1000) further comprises a booster pump (8), and the booster pump (8) is arranged on the water inlet pipe (3).

3. The easily washable reverse osmosis unit according to claim 1,

the reverse osmosis device (1000) further comprises a water production pipe (6), and a flowmeter (9) is arranged on the water production pipe (6).