CN214270464U - Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects - Google Patents

Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects Download PDF

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Publication number
CN214270464U
CN214270464U CN202022447783.1U CN202022447783U CN214270464U CN 214270464 U CN214270464 U CN 214270464U CN 202022447783 U CN202022447783 U CN 202022447783U CN 214270464 U CN214270464 U CN 214270464U
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China
Prior art keywords
water
pipe
cleaning
security filter
outlet
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Active
Application number
CN202022447783.1U
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Chinese (zh)
Inventor
邵正波
李鹏
王栋杰
孙光
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Huaneng Weihai Power Generation Co ltd
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Huaneng Weihai Power Generation Co ltd
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Priority to CN202022447783.1U priority Critical patent/CN214270464U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Abstract

The utility model relates to the technical field of security filter cleaning, in particular to a sterilization and flushing system of a reverse osmosis seawater desalination security filter, which is provided with a security filter, and is characterized in that a sewage discharge outlet of the security filter is connected with a collecting box through a sewage discharge pipe, a water outlet of the security filter is communicated with a seawater reverse osmosis system, a water outlet pipe between a water outlet isolation valve and a water outlet of the security filter is respectively provided with a water outlet and a cleaning inlet, the water outlet is connected with the collecting box, the cleaning inlet is connected with a water outlet of a cleaning box, a liquid inlet of the cleaning box is communicated with a water inlet of the security filter, an ultrafiltration water tank is arranged on the side surface of the security filter, a reducing agent conveying pipe is arranged on an ultrafiltration water pipe between a water pump liquid outlet valve and a water inlet valve of the security filter, a liquid inlet of the security filter is communicated with a seawater desalination flushing pipe, has the advantages of simple structure, convenient use, good washing effect, high washing efficiency and the like.

Description

Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects
Technical Field
The utility model belongs to the technical field of security filter washs technique and specifically relates to a simple structure, convenient to use, washing effect are good, the high reverse osmosis seawater desalination security filter rinse-system that disinfects of washing efficiency.
Background
As is known well, 8 folded filter elements of 5 microns are arranged in a security filter for reverse osmosis seawater desalination, and the security filter has the main functions of intercepting particulate matters in the feed water of a reverse osmosis membrane and preventing large particles and colloid from entering the reverse osmosis membrane to cause irreversible damage to the reverse osmosis membrane. The security filter operates for 15-30 days, and the filter element pressure difference is increased due to the blockage of the micropores of the filter element by the adhesive substances on the surface of the filter element, so that the filter element is frequently replaced, and the operation cost of seawater desalination and the labor intensity of maintainers are increased. It is common practice to flush the cartridge with product water under pressure in an attempt to flush the surface of the cartridge of microorganisms, but this is not desirable.
In another method, the filter element is subjected to circulating chemical cleaning by using 0.5% sodium hypochlorite solution, although the adhered substances on the surface of the filter element can be removed, the filter element is oxidized, the aperture of the filter element is enlarged, the filtering precision is reduced, and the quality of inlet water is influenced.
Disclosure of Invention
The utility model aims at solving the deficiencies of the prior art and providing a sterilization and flushing system of reverse osmosis seawater desalination cartridge filter, which has simple structure, convenient use, good flushing effect and high flushing efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a sterilization and flushing system of a security filter for reverse osmosis seawater desalination is provided with a security filter, and is characterized in that a drain outlet of the security filter is connected with a collecting box through a drain pipe, a drain valve is arranged on the drain pipe, a water outlet of the security filter is communicated with a seawater reverse osmosis system through a water outlet pipe, a water outlet isolation valve is arranged on the water outlet pipe, a water outlet and a cleaning inlet are respectively arranged on the water outlet pipe between the water outlet isolation valve and the water outlet of the security filter, the water outlet is connected with the collecting box through a drain pipe, a drain valve is arranged on the drain pipe, the cleaning inlet is connected with a liquid outlet of a cleaning box through a cleaning inlet pipe, a cleaning pump and a cleaning inlet valve are arranged on the cleaning inlet pipe, a liquid inlet of the cleaning box is communicated with a water inlet of the security filter through a cleaning outlet pipe, a cleaning outlet valve is arranged on the cleaning outlet pipe, and an ultrafiltration water tank is arranged on the side surface of the security filter, the liquid outlet of the ultrafiltration water tank is communicated with the water inlet of the security filter through an ultrafiltration water pipe, an ultrafiltration water pump, a water pump liquid outlet valve and a security filter water inlet valve are sequentially arranged on the ultrafiltration water pipe along the water flow direction, a reducing agent delivery pipe is arranged on the ultrafiltration water pipe between the water pump liquid outlet valve and the security filter water inlet valve, a delivery valve and a delivery pump are arranged on the reducing agent delivery pipe, the reducing agent delivery pipe is communicated with the ultrafiltration water pipe, the liquid inlet of the security filter is communicated with a seawater desalination flushing pipe, and a flushing water pump and a flushing valve are arranged on the seawater desalination flushing pipe.
The water inlet of security filter be equipped with inlet manifold, inlet manifold is linked together with ultrafiltration water pipe, washing exit tube and sea water desalination flushing pipe respectively, is equipped with the manometer of intaking on the inlet manifold, detects security filter's pressure of intaking.
The outlet pipe of security filter on be equipped with out the water pressure table, detect security filter's play water pressure.
The utility model discloses owing to adopt above-mentioned structure, have simple structure, convenient to use, wash effectual, advantage such as washing efficiency height.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawing, a sterilization and flushing system of a reverse osmosis seawater desalination cartridge filter is provided with a cartridge filter 1 and is characterized in that a sewage discharge port of the cartridge filter 1 is connected with a collection box 3 through a sewage discharge pipe 2, a sewage discharge valve 4 is arranged on the sewage discharge pipe 2, a water outlet of the cartridge filter 1 is communicated with a seawater reverse osmosis system through a water outlet pipe 5, a water outlet isolation valve 6 is arranged on the water outlet pipe 5, a water outlet and a cleaning inlet are respectively arranged on the water outlet pipe 5 between the water outlet of the water outlet isolation valve 6 and the water outlet of the cartridge filter 1, the water outlet is connected with the collection box 3 through a water outlet pipe 7, a water discharge valve 8 is arranged on the water outlet pipe 7, the cleaning inlet is connected with a liquid outlet of a cleaning box 10 through a cleaning inlet pipe 9, a cleaning pump 11 and a cleaning liquid inlet valve 12 are arranged on the cleaning, a cleaning outlet pipe 13 is provided with a cleaning outlet valve 14, an ultrafiltration water tank 15 is arranged on the side surface of the security filter 1, a liquid outlet of the ultrafiltration water tank 15 is communicated with a water inlet of the security filter 1 through an ultrafiltration water pipe 16, an ultrafiltration water pump 17, a water pump outlet valve 18 and a security filter inlet valve 19 are sequentially arranged on the ultrafiltration water pipe 16 along the water flow direction, a reducing agent delivery pipe 20 is arranged on the ultrafiltration water pipe 16 between the water pump outlet valve 18 and the security filter inlet valve 19, the reducing agent delivery pipe 20 is communicated with the ultrafiltration water pipe 16, a delivery valve 21 and a delivery pump 28 are arranged on the reducing agent delivery pipe 20, a liquid inlet of the security filter 1 is communicated with a seawater desalination flushing pipe 22, and a flushing water pump 23 and a flushing valve 24 are arranged on the seawater desalination flushing pipe 22.
Further, a water inlet main pipe 25 is arranged at the water inlet of the cartridge filter 1, the water inlet main pipe 25 is respectively communicated with the ultrafiltration water pipe 16, the cleaning outlet pipe 13 and the seawater desalination flushing pipe 22, and a water inlet pressure gauge 26 is arranged on the water inlet main pipe 25 for detecting the water inlet pressure of the cartridge filter 1.
Further, the water outlet pipe 5 of the cartridge filter 1 is provided with a water outlet pressure gauge 27 for detecting the water outlet pressure of the cartridge filter 1.
The utility model discloses when wasing, at first open blowoff valve 4 and drain valve 8, drain the water in the security filter 1, then close all valves, (1) when security filter 1's the pressure differential that intake pressure gauge 26 and play water pressure gauge 27 show is too big more than 0.1, adopt washing case 10 to carry out reverse cleaning this moment, prepare 0.5% washing liquid in washing case 10, open scavenging pump 11, wash feed liquor valve 12 and wash play liquid valve 14, carry out circulation cleaning to security filter 1, after 20 minutes, close wash play liquid valve 14, close scavenging pump 11 again, wash feed liquor valve 12, pack the washing liquid in security filter 1, soak 1 hour again, close all valves after carrying out twice circulation cleaning and soaking, then open rinsing water pump 23, flush valve 24 and drain valve 8, wash security filter 1 clean with the desalination water, detecting that the residual chlorine in the drained water is 0, finishing cleaning, and after the cartridge filter 1 is chemically cleaned, the operating pressure difference is 0.01MPa, which indicates that the pollutants in the filter element of the cartridge filter 1 are cleaned; (2) when the pressure difference between the water inlet pressure gauge 26 and the water outlet pressure gauge 27 of the security filter 1 is not more than 0.05-0.08, the ultrafiltration water tank 15 is adopted for cleaning, hypochlorite ions are contained in the ultrafiltration water tank 15, so that the sterilization effect is achieved, the delivery valve 21 on the reducing agent delivery pipe 20 is closed, the ultrafiltration water pump 17, the water pump outlet valve 18, the security filter water inlet valve 19 and the blow-down valve 4 are opened, the security filter 1 is flushed for 20 minutes on line by using the product water of the ultrafiltration water tank 15, if the water level of the ultrafiltration water tank 15 is low, the flushing water pump 23 and the flushing valve 24 are opened, the flushing flow is controlled to be 150t/h and flushed for 20 minutes, all valves are closed after the product water of the ultrafiltration water tank 15 is stored in the security filter 1, the blow-down valve 4 and the drain valve 8 are opened after the security filter 1 is soaked for 1 hour, and the water stored in the security filter 1 is drained, and then, a flushing water pump 23, a flushing valve 24 and a drain valve 8 are opened, the cartridge filter 1 is flushed by using the desalted water, the residual chlorine of the drained water is detected to be 0, the pressure difference between the inlet and the outlet of the cartridge filter 1 is maintained between 0.02 MPa and 0.03MPa after the cleaning is finished, and when the cleaning is not needed, a conveying valve 21 and a conveying pump 28 on a reducing agent conveying pipe 20 are opened, are mixed with the product water in the ultrafiltration water tank 15 and then are filtered by the cartridge filter 1.
The utility model discloses if security filter 1's exit differential pressure is not big at practical in-process, can adopt ultrafiltration water tank 15 to disinfect and wash, if security filter 1's exit differential pressure is big, direct adoption washs case 10 and washs, because the washing liquid can circulate chemical cleaning to security filter 1's filter core, though can get rid of the adhesion thing on filter core surface, nevertheless cause the oxidation to the filter core, make the aperture grow of filter core, cause the filter fineness to descend, the quality of intaking is influenced, consequently, reduced through this equipment and washd case 10 abluent number of times, the filter core damage time in security filter 1 has been delayed, security filter 1's life has been increased.
The invention has the advantages of simple operation, obvious sterilization effect on microorganisms attached to the filter element of the cartridge filter 1 and the like, thereby prolonging the service life of the filter element of the cartridge filter 1. The material cost for replacing the filter element can be saved by more than 20 ten thousand yuan every year, and the labor intensity of frequently replacing the filter element by maintainers can be reduced.

Claims (3)

1. A sterilization and flushing system of a security filter for reverse osmosis seawater desalination is provided with a security filter, and is characterized in that a drain outlet of the security filter is connected with a collecting box through a drain pipe, a drain valve is arranged on the drain pipe, a water outlet of the security filter is communicated with a seawater reverse osmosis system through a water outlet pipe, a water outlet isolation valve is arranged on the water outlet pipe, a water outlet and a cleaning inlet are respectively arranged on the water outlet pipe between the water outlet isolation valve and the water outlet of the security filter, the water outlet is connected with the collecting box through a drain pipe, a drain valve is arranged on the drain pipe, the cleaning inlet is connected with a liquid outlet of a cleaning box through a cleaning inlet pipe, a cleaning pump and a cleaning inlet valve are arranged on the cleaning inlet pipe, a liquid inlet of the cleaning box is communicated with a water inlet of the security filter through a cleaning outlet pipe, a cleaning outlet valve is arranged on the cleaning outlet pipe, and an ultrafiltration water tank is arranged on the side surface of the security filter, the liquid outlet of the ultrafiltration water tank is communicated with the water inlet of the security filter through an ultrafiltration water pipe, an ultrafiltration water pump, a water pump liquid outlet valve and a security filter water inlet valve are sequentially arranged on the ultrafiltration water pipe along the water flow direction, a reducing agent delivery pipe is arranged on the ultrafiltration water pipe between the water pump liquid outlet valve and the security filter water inlet valve, a delivery valve and a delivery pump are arranged on the reducing agent delivery pipe, the reducing agent delivery pipe is communicated with the ultrafiltration water pipe, the liquid inlet of the security filter is communicated with a seawater desalination flushing pipe, and a flushing water pump and a flushing valve are arranged on the seawater desalination flushing pipe.
2. The sterilization and flushing system of a reverse osmosis seawater desalination cartridge filter as recited in claim 1, wherein the water inlet of the cartridge filter is provided with a water inlet main pipe, the water inlet main pipe is respectively communicated with the ultrafiltration water pipe, the cleaning outlet pipe and the seawater desalination flushing pipe, the water inlet main pipe is provided with a water inlet pressure gauge for detecting the water inlet pressure of the cartridge filter.
3. The sterilization and flushing system of a reverse osmosis seawater desalination cartridge filter as recited in claim 1, wherein a water outlet pressure gauge is disposed on a water outlet pipe of the cartridge filter to detect the water outlet pressure of the cartridge filter.
CN202022447783.1U 2020-10-29 2020-10-29 Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects Active CN214270464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022447783.1U CN214270464U (en) 2020-10-29 2020-10-29 Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022447783.1U CN214270464U (en) 2020-10-29 2020-10-29 Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects

Publications (1)

Publication Number Publication Date
CN214270464U true CN214270464U (en) 2021-09-24

Family

ID=77773054

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022447783.1U Active CN214270464U (en) 2020-10-29 2020-10-29 Reverse osmosis seawater desalination cartridge filter rinse-system that disinfects

Country Status (1)

Country Link
CN (1) CN214270464U (en)

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