CN212403567U

CN212403567U - Reverse osmosis membrane purifier

Info

Publication number: CN212403567U
Application number: CN202020178326.4U
Authority: CN
Inventors: 武大宁; 曹友亮; 陈奎奎
Original assignee: NANJING NUORUN MECHANICAL TECHNOLOGY CO LTD
Current assignee: NANJING NUORUN MECHANICAL TECHNOLOGY CO LTD
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2021-01-26
Anticipated expiration: 2030-02-17

Abstract

The utility model discloses a reverse osmosis membrane water purifying device, which belongs to the technical field of membrane separation and comprises a bracket, the bracket is provided with a circulating pump, a cleaning tank, a filter, a feeding pump, a control cabinet and a dosing barrel, the seventh pipeline is respectively connected with one end of the first membrane module, one end of the second membrane module and one end of the third membrane module, the first membrane module, the second membrane module and the third membrane module are arranged in parallel and arranged on the bracket, and the three membrane modules are all provided with 2 8040 reverse osmosis membrane cores, the side surface of the third membrane module is connected with the side surface of the second membrane module through a pipeline, the side surface of the second membrane module is connected with the side surface of the first membrane module through a pipeline, the reverse osmosis membrane water purifying device is composed of membrane shells, wherein 2 8040 reverse osmosis membrane cores are arranged on the three membrane components in series, continuous treatment is adopted in the operation process, cross flow filtration is adopted in the operation mode, and materials are continuously filtered by the system. And after each batch of liquid is filtered, the filtering efficiency is high.

Description

Reverse osmosis membrane purifier

Technical Field

The utility model belongs to the technical field of the embrane method separation, concretely relates to reverse osmosis membrane purifier.

Background

Reverse osmosis is the most precise membrane separation technology, can block all soluble salts and organic matters with molecular weight more than 100, but allows water molecules to permeate, and the desalination rate of a reverse osmosis membrane of cellulose acetate can be generally more than 95%, and the desalination rate of a reverse osmosis composite membrane is generally more than 98%. They are widely used in the desalination of sea water and brackish water, the preparation of boiler feed water, industrial pure water and electronic grade ultrapure water, the production of drinking pure water, the treatment of wastewater and special separation, and the like, and the use of reverse osmosis before ion exchange can greatly reduce the operation cost and the wastewater discharge. The operating pressure difference of the two sides of the reverse osmosis membrane is generally more than 5bar when the inlet water is brackish water, and is generally less than 84bar when the inlet water is seawater, the existing treatment process is complex, most of the inlet water is treated by adopting a single membrane pipe, the efficiency is low, and a device for continuously filtering materials needs to be developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reverse osmosis membrane purifier to solve and to filter the material in succession, the poor problem of membrane module series connection filter effect.

In order to achieve the above object, the utility model provides a following technical scheme: a reverse osmosis membrane water purifying device comprises a support, wherein a circulating pump, a cleaning tank, a filter, a feeding pump, a control cabinet and a dosing barrel are installed on the support, the upper end of the cleaning tank is connected with a third pipeline and a fourth pipeline, the third pipeline is connected with the middle of the second pipeline, one end of the second pipeline is provided with a concentrated water discharge port, the other end of the second pipeline is connected with the sixth pipeline, the fourth pipeline is connected with the sixth pipeline, one end of the sixth pipeline is provided with a water production port, the other end of the sixth pipeline is respectively connected with a seventh pipeline and a clear liquid discharge port through a tee joint, the seventh pipeline is respectively connected with one end of a first membrane component, a second membrane component and a third membrane component, the first membrane component, the second membrane component and the third membrane component are arranged on the support in parallel, 2 8040 reverse osmosis membrane cores are installed on the three membrane components, and the side surface of the third, the utility model discloses a chemical feeding device, including first membrane module, filter, third membrane module, first pipeline, feed pump, control cabinet, filter, first pipeline, second membrane module, first membrane module side is passed through the pipe connection to the side of the second membrane module, the pipe connection is passed through to the filter and the circulating pump side, and has pipeline tee junction with it on the third membrane module side, first membrane module side is passed through first pipe connection to the another side of circulating pump, wash jar side and pass through pipe connection feed pump one side, wash jar side and pass through ninth pipe connection tenth pipeline intermediate position, tenth pipeline one end is equipped with the raw water import, and the other end is connected in feed pump opposite side, it is equipped with dosing pump and sixth pipe connection on.

Preferably, the end parts of the first membrane module, the second membrane module and the third membrane module are provided with membrane module sampling ports.

Preferably, a solenoid valve is provided on the ninth conduit for opening and closing the flushing operation.

Preferably, an electromagnetic valve is provided on the tenth pipe for opening and shutting off the flow of water from the raw water inlet.

Preferably, be equipped with manometer and sample panel on the support, be equipped with manometer and sample connection on manometer and the sample panel, the manometer is connected in the pipeline that needs the measurement, and the sample connection is in the pipeline that needs the sample.

The utility model discloses a technological effect and advantage: the reverse osmosis membrane water purifying device is composed of membrane shells, wherein 2 8040 reverse osmosis membrane cores are arranged on the three membrane components in series, continuous treatment is adopted in the operation process, cross flow filtration is adopted in the operation mode, and materials are continuously filtered by the system. After each batch of liquid is filtered, the membrane is regenerated by using alkali and acid liquor for next reuse, and the filtering efficiency is high.

Drawings

Fig. 1 is a left 45-degree structural schematic diagram of the present invention;

fig. 2 is a right 45-degree structural schematic diagram of the present invention;

fig. 3 is a rear view of the present invention.

In the figure: 1-support, 2-circulating pump, 3-cleaning tank, 4-filter, 5-feeding pump, 6-medicine feeding barrel, 71-first membrane module, 72-second membrane module, 73-third membrane module, 8-raw water inlet, 9-clear liquid emptying port, 10-membrane module sampling port, 11-manometer and sampling panel, 12-water producing port, 13-concentrated water discharging port, 14-first pipeline, 15-second pipeline, 16-third pipeline, 17-fourth pipeline, 18-tenth pipeline, 19-sixth pipeline, 20-seventh pipeline, 21-eighth pipeline and 22-ninth pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a reverse osmosis membrane purifier as shown in the figure, which comprises a bracket 1, a circulating pump 2, a cleaning tank 3, a filter 4, a feeding pump 5, a control cabinet and a dosing barrel 6 are arranged on the bracket 1, the upper end of the cleaning tank 3 is connected with a third pipeline 16 and a fourth pipeline 17, the third pipeline 16 is connected with the middle part of a second pipeline 15, one end of the second pipeline 15 is provided with a concentrated water discharge port 13, the other end is connected with a sixth pipeline 19, the fourth pipeline 17 is connected with the sixth pipeline 19, one end of the sixth pipeline 19 is provided with a water production port 12, the other end is respectively connected with a seventh pipeline 20 and a clear liquid emptying port 9 through a tee joint, the seventh pipeline 20 is respectively connected with one end of a first membrane module 71, one end of a second membrane module 72 and one end of a third membrane module 73, the first membrane module 71, the second membrane module 72 and the third membrane module 73 are arranged on the bracket 1 in parallel, and 2 reverse osmosis membrane modules, the end parts of the first membrane component 71, the second membrane component 72 and the third membrane component 73 are all provided with a membrane component sampling port 10, the side surface of the third membrane component 73 is connected with the side surface of the second membrane component 72 through a pipeline, the side surface of the second membrane component 72 is connected with the side surface of the first membrane component 71 through a pipeline, the filter 4 is connected with the side surface of the circulating pump 2 through an eighth pipeline 21, a pipeline arranged on the side surface of the third membrane component 73 is in three-way connection with the eighth pipeline 21, the other side surface of the circulating pump 2 is connected with the side surface of the first membrane component 71 through a first pipeline 14, the side surface of the cleaning tank 3 is connected with one side of the feeding pump 5 through a pipeline, the side surface of the cleaning tank 3 is connected with the middle position of a tenth pipeline 18 through a ninth pipeline 22, the ninth pipeline 22 is provided with an electromagnetic valve for opening and closing the, be used for opening and cutting off from the rivers of raw water import 8, be equipped with on the medicine bucket 6 with the dosing pump and be connected with sixth pipeline 19, the switch board respectively with circulating pump 2, feed pump 5 and dosing pump electric connection, be equipped with manometer and sample panel 11 on the support 1, be equipped with manometer and sample connection on manometer and the sample panel 11, the manometer is connected in the pipeline that needs the measurement, the sample connection is in the pipeline that needs the sample.

The working principle is as follows: the reverse osmosis membrane water purifying device is characterized in that a support 1 is fixed on the ground, when a membrane element is installed, glycerol is coated on the sealing head of a connecting pipe and the end of a membrane central pipe, a first reverse osmosis membrane is horizontally placed and slowly pushed into a membrane shell 3/4 according to the water flow direction, a second reverse osmosis membrane is tightly connected with the first reverse osmosis membrane through the connecting pipe, a reverse osmosis membrane assembly is horizontally placed, two reverse osmosis membranes are slowly inserted into the assembly, then a water inlet end cover sealing ring is slowly pushed into the membrane shell after being coated with the glycerol, an end cover is lightly knocked by a leather hammer or a wooden mallet to be completely installed in the membrane shell and expose a retaining ring groove, then a retaining ring is installed, the sealing head of the other end cover is also connected with the reverse osmosis membrane element in the same way, then the retaining ring is installed and screws are tightened, after the membrane assembly is installed, a 380V, then starting a raw water transfer pump of a raw water pool, when the flow of a concentrated water reflux flowmeter of the equipment is displayed, opening a feeding pump 5, setting the initial frequency of a frequency converter of a circulating pump 2 to be 30Hz after the circulating flow is stable, opening the circulating pump 2, slowly increasing the frequency of the circulating pump 2 to 50Hz after the circulation of materials is stable, then adjusting a concentrated solution adjusting valve, observing the pressure table and the pressure display number in a sampling panel 11, adjusting the pressure to be about 1.5MPa, adjusting the pressure difference between an inlet and an outlet to be about 0.2MPa, filtering the feed liquid by a first membrane component 71, a second membrane component 72 and a third membrane component 73, cleaning after working for a period of time, wherein the cleaning has three modes: a. cleaning with pure water: before shutting down, the membrane penetrant flow can be selected to be purified water when not obviously descending, adds appropriate amount of pure water in washing jar 3, opens each manual valve on the washing return line, opens concentrated solution circulation regulating valve to the biggest, later opens flushometer, feed pump 5, circulating pump 2 in proper order, and circulation washing 40min, the evacuation can, b, alkali wash: when the membrane permeation flow is obviously reduced and the flux is not obviously recovered after pure water cleaning, alkali cleaning can be selected, penetrating fluid and concentrated solution are circulated in the cleaning tank 3, alkali cleaning solution (NaOH) is added, the pH value is adjusted to 10-11, and the membrane is circularly cleaned for 30-40 min. Emptying the equipment after the membrane permeation flow measurement is recovered, washing with pure water until the pH of the effluent is neutral, and c, acid washing: when the membrane permeation flow is obviously reduced and the flux is not obviously recovered after pure water and alkaline washing, acid washing can be selected, 2-3% of citric acid is added into the circulating penetrating fluid and the concentrated solution in the washing tank 3, the pH value is adjusted to 2-3, and the circulating washing is carried out for 30-40 min. And (4) emptying the equipment after the membrane permeation flow measurement is recovered, and then flushing with pure water until the pH of the effluent is neutral.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a reverse osmosis membrane purifier, includes support (1), its characterized in that: the device comprises a support (1), a circulating pump (2), a cleaning tank (3), a filter (4), a feeding pump (5), a control cabinet and a dosing barrel (6) are installed on the support (1), the upper end of the cleaning tank (3) is connected with a third pipeline (16) and a fourth pipeline (17), the third pipeline (16) is connected with a second pipeline (15), one end of the second pipeline (15) is provided with a concentrated water discharge port (13), the other end of the second pipeline is connected with a sixth pipeline (19), the fourth pipeline (17) is connected with the sixth pipeline (19), one end of the sixth pipeline (19) is provided with a water production port (12), the other end of the sixth pipeline is respectively connected with a seventh pipeline (20) and a clear liquid discharge port (9) through a tee joint, the seventh pipeline (20) is respectively connected with one end of a first membrane assembly (71), one end of a second membrane assembly (72) and one end of a third membrane assembly (73), the first membrane assembly (71), the second membrane assembly (72) and the third membrane assembly (73, the three membrane assemblies are provided with 2 8040 reverse osmosis membrane cores, the side surface of the third membrane assembly (73) is connected with the side surface of the second membrane assembly (72) through a pipeline, the side surface of the second membrane assembly (72) is connected with the side surface of the first membrane assembly (71) through a pipeline, the filter (4) is connected with the side surface of the circulating pump (2) through an eighth pipeline (21), the side surface of the third membrane assembly (73) is provided with a pipeline which is in three-way connection with the eighth pipeline (21), the other side surface of the circulating pump (2) is connected with the side surface of the first membrane assembly (71) through a first pipeline (14), the side surface of the cleaning tank (3) is connected with one side of the feeding pump (5) through a pipeline, the side surface of the cleaning tank (3) is connected with the middle position of the tenth pipeline (18) through a ninth pipeline (22), one end of the tenth pipeline (18) is provided with an inlet (, be equipped with on medicine barrel (6) and add the medicine pump and be connected with sixth pipeline (19), the switch board is electric connection circulating pump (2), feed pump (5) and adds the medicine pump respectively.

2. The reverse osmosis membrane water purification device according to claim 1, characterized in that: the end parts of the first membrane assembly (71), the second membrane assembly (72) and the third membrane assembly (73) are provided with membrane assembly sampling ports (10).

3. The reverse osmosis membrane water purification device according to claim 1, characterized in that: and the ninth pipeline (22) is provided with an electromagnetic valve for opening and closing flushing operation.

4. The reverse osmosis membrane water purification device according to claim 1, characterized in that: an electromagnetic valve is arranged on the tenth pipeline (18) and is used for opening and cutting off the water flow from the raw water inlet (8).

5. The reverse osmosis membrane water purification device according to claim 1, characterized in that: be equipped with manometer and sample panel (11) on support (1), be equipped with manometer and sample connection on manometer and sample panel (11), the manometer is connected in the pipeline that needs the measurement, and the sample connection is in the pipeline that needs the sample.