Operating temperature controlled multi-component membrane separation device and process thereof

Abstract

The invention provides an operating temperature controlled multi-component membrane separation device and a process thereof. The device comprises flat-plate type and spiral coil type membrane components, a low-pressure pump, a high-pressure pump, a constant temperature controller, a heat exchange device, a cold / hot source circulating pump and other equipment. The low-pressure pump and the high-pressure pump are respectively taken as driving force, and purification, concentration and separation operations of reverse osmosis or nanofiltration, ultrafiltration or microfiltration membranes or single functional membrane on raw material liquid can be realized. The invention has the obvious characteristics that the membrane process of RO or NF and UF or MF four membrane components and four separation functions are combined, a high-pressure membrane system and a low-pressure membrane system are integrated, the operating temperature is controllable, the separation functions are diversified, the operating process is combined, the equipment integration degree is high, and the device is suitable for laboratory research and laboratory-enlarged research or batch operation of different raw materials and is particularly suitable for separation, extraction, purification and concentration operations of heat sensitive materials, so that a reliable design basis is provided for engineering development of large-scale application and manufacture of complete sets of membrane separation equipment.

Description

technical field [0001] The invention relates to a multi-component membrane separation device with controllable operating temperature and a process thereof, which belongs to the field of fluid separation of water and waste water treatment, food, biology, pharmacy, fine chemical industry and the like. Background technique [0002] Membrane separation technology has the advantages of high efficiency, energy saving, environmental protection, and easy operation, so it is widely used in the separation, classification, impurity removal and concentration of materials with different physical and chemical properties in today's industrial production. The four membrane processes of reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) driven by pressure are due to the sequential increase of the pore size of the membrane. The mixture of different sizes can be finely separated, purified and concentrated, and can be operated efficiently for the specific ...

AI Technical Summary

Problems solved by technology

However, the existing experimental or batch-scale membrane separation equipment on the market today does not have an effective temperature control system to regulate the operating temperature of the material, and all of them are in a single form such as a flat or roll membrane element, or The complete set of devices manufactured with a single membrane element at an operating pressure of only low or high pressure, the experimental data obtained by this deviation is too large

Therefore, the existing complete sets of membrane separation devices have few specifications, single membrane separation function, and no temperature control system. The same set of equipment cannot use the same feed liquid to operate multiple different membranes at the same time, let alone meet the requirements of heat sensitive membranes. The need for material temperature control operation of the material, complex process steps when completing the separation task, multiple sets of test equipment, large equipment investment and operating costs, etc.

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