Off-line washing and repairing device for multifunctional waste reverse osmosis membrane

A reverse osmosis membrane, off-line technology, used in semi-permeable membrane separation, reverse osmosis, membranes, etc., can solve the problems of affecting the cleaning effect, complicated operation, and inaccurate data comparison, and achieve obvious cleaning effect and high repair efficiency. , test the precise effect

Active Publication Date: 2011-09-14
山东科伦药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology cannot produce RO water for preparing membrane cleaning agent on one piece of equipment, and can only use tap water or RO water prepared by other ultrapure water equipment to prepare cleaning agent
Complicated operation, affecting cleaning effect and test accuracy; single cleaning method due to equipment limitations, difficult to cope with mem...

Method used

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  • Off-line washing and repairing device for multifunctional waste reverse osmosis membrane
  • Off-line washing and repairing device for multifunctional waste reverse osmosis membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: Preparation of single-membrane RO pure water:

[0036] An off-line cleaning and repairing equipment for multifunctional waste reverse osmosis membranes. The structural composition and connection relationship of the equipment are as follows:

[0037] Structural composition and its connection relationship:

[0038] The equipment is mainly composed of valves, flowmeters, conductivity meters, pressure gauges, inlet water pH meters, booster pumps P and precision filters PP1 and PP2. The valves are composed of filter element emptying valve V0, tap water valve V1, tap water Inlet valve V2, tap water outlet valve V3, acidic lotion inlet valve V4, alkaline lotion inlet valve V5, restoration agent water inlet valve V6, main water inlet valve V7, old membrane inlet valve V8, old membrane concentrated water Outlet valve V9, old membrane short-circuit valve V10, pure water-new membrane inlet valve V11, old membrane fresh water outlet valve V12, new membrane inlet valv...

Embodiment 2

[0042] Embodiment 2: Preparation of double-membrane RO pure water

[0043] An off-line cleaning and repairing equipment for multifunctional waste reverse osmosis membranes (the structural composition and connection relationship are the same as those in Example 1).

[0044] method:

[0045] Open the tap water valves V1, V2, fill the tap water bucket with tap water filtered by the 5μm PP1 filter element, open V3, V7, V8, V9, V15, V11, V14, V24, V17, V16, and close the other valves; turn on the power and start Booster pump 5, using two membranes in series to produce RO pure water, when the reading of E4 is less than 2μs / cm, turn on V23, V21, V19 in turn, and inject RO pure water into pickling tank 2, alkali cleaning tank 3, repair agent Box 4.

Embodiment 3

[0046] Embodiment 3: single-membrane acidic chemical agent cleaning waste RO membrane

[0047] An off-line cleaning and repairing equipment for multifunctional waste reverse osmosis membranes (the structural composition and connection relationship are the same as those in Example 1).

[0048] method:

[0049] Prepare an acid cleaning agent with a total volume of 150L in the pickling tank 2, open V4, V7, V8, V9, V15, V22, V12, V23, and close all other valves; turn on the power, start the booster pump 5, and pass through V9 Adjust the pickling flow rate, and use an acid cleaning agent to clean a single waste RO membrane 6 in a circular manner.

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Abstract

The invention discloses an off-line washing and repairing device for a multifunctional waste reverse osmosis membrane, which mainly consists of a valve, a flowmeter, a conductivity meter, a pressure gage, a water inlet instrument pH, a booster pump P, and precise filters PP1 and PP2. The off-line washing and repairing device for a multifunctional waste reverse osmosis membrane is simple to operate, obvious in washing effect and precise to test; the off-line washing and repairing device is capable of comprehensively washing and repairing in multiple steps under complicated scale formation condition so as to obtain the best washing and repairing effect; the washing number can be increased according to different conditions, and the washing and repairing effects of the waste membrane is better judged in real time; simultaneously, high-speed washing and high-pressure repairing can be performed on the waste reverse osmosis membrane, and the relevant data of the membrane desalting performance during the chemical washing and repairing process can be detected so as to obtain the parameters such as the desalting ratio, water recycling ratio and pressure difference of the reverse osmosis membrane. A plurality of reverse osmosis membranes can be washed and repaired for once through extended function. The repaired reverse osmosis membrane has the characteristic of high repairing efficiency, and the performance reaches or approaches the new membrane index.

Description

technical field [0001] The invention relates to the field of cleaning and repairing reverse osmosis membranes, in particular to off-line cleaning and repairing equipment for multifunctional waste reverse osmosis membranes. Background technique [0002] At present, reverse osmosis technology is used in the preparation of purified water in various fields such as food, pharmaceuticals, electric power, and tap water. However, the used reverse osmosis membrane only needs simple cleaning and testing according to the current technology. This equipment is developed based on the professional research and development of the existing reverse osmosis membrane cleaning technology. It not only optimizes the cleaning and testing technology, but also realizes self-made cleaning solvent, optional cleaning of single and double membranes, standard membrane and cleaning on one piece of equipment. Membrane scientific comparison, multi-mode cleaning and other functions, the most important thing i...

Claims

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Application Information

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IPC IPC(8): B01D65/06
CPCB01D2321/162B01D65/02B01D61/12B01D2317/022B01D2321/164B01D61/025
Inventor 文剑丹李维丽尹凤刚
Owner 山东科伦药业有限公司
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