Disposable combinational membrane module

Abstract

The invention discloses a disposable combinational membrane module which is composed of combinational joints, hollow fiber membrane yarns and a membrane shell, wherein the combinational joints are arranged at the two ends of the disposable combinational membrane module, and the hollow fiber membrane yarns are arranged in the middle of the disposable combinational membrane module; the combinational joints comprise an upper combinational joint and a lower combinational joint, the lower combinational joint is provided with an aeration device, a casting head part is cast in a way of partitioned casting, and aeration discs are uniformly distributed in each casting interval, so that membrane bundle yarns in a membrane pipe fitting are uniformly distributed, and poor water-passing and aeration cleaning effects are not caused when the membrane bundle yarns are distributed excessively densely. In the disposable combined membrane module, disposable parts comprise a membrane connector, a membrane casting head and a membrane pipe, namely, when a membrane runs to a certain time or the membrane is contaminated and blocked seriously and can not reach requirements after being cleaned, a mode of directly replacing the membrane connector, the membrane casting head and the membrane pipe is adopted in the invention and the mode is more economic and environmental-friendly as compared with the traditional mode of replacing a whole membrane module; and after a membrane stack is formed, only an operation of connecting ports of a whole stack of membrane devices with a main water inlet pipe and a main water outlet pipe is required to be performed, so that the filling density is greatly improved, space can be saved and a lot of pipe fittings are also saved.

Description

technical field [0001] The invention relates to the technical field of membrane separation, in particular to a disposable combined membrane module. Background technique [0002] Membrane separation technology has been widely used in food, medicine, biology, Environmental protection, chemical industry, metallurgy, energy, petroleum, water treatment, electronics, bionics and other fields have produced huge economic and social benefits, and have become one of the most important means in today's separation science. [0003] The membrane separation device is expensive, but the main disadvantages of the current membrane modules are: 1) The membrane module is expensive, the membrane fouling is prominent, and the membrane service life is short: the traditional column membrane module will die after the membrane bundle reaches its service life. It is necessary to replace the entire membrane module, including the membrane casing, membrane connector, and connected pipes. However, alth...

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Problems solved by technology

[0003] The membrane separation device is expensive, but the main disadvantages of the current membrane modules are: 1) The membrane module is expensive, the membrane fouling is prominent, and the membrane service life is short: the traditional column membrane module will die after the membrane bundle reaches its service life. It is necessary to replace the entire membrane module, including the membrane casing, membrane connector, and connected pipes. However, although the core membrane bundle of the membrane module has a short service life, which is 3-5 years according to the water quality, the membrane connection Heads, membrane shells, pipe fittings, etc. are durable products that must be replaced after the membrane bundle reaches its service life, resulting in waste of resources and high costs

2) Generally, the joints of membrane devices arranged in columns are circular, and each membrane tube must be connected to more than three tubes for water inlet, outlet, and concentrated water. The consumption of pipe fittings is large, and because a large number of pipe fittings are not tightly arranged Low filling density and large footprint

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