Novel high-efficiency filtering water treatment membrane stack

Abstract

The invention discloses a novel high-efficiency filtering water treatment membrane stack. The novel high-efficiency filtering water treatment membrane stack comprises a membrane stack body adopting fixed rings on two ends to fasten a plurality of disc-type membranes which are stacked in a separating manner and sealing rings in a serial connection manner onto a water collection pipe, wherein a spacing net which sleeves the water collection pipe is arranged between every two adjacent disc-type membranes and comprises an installation ring which sleeves the water collection pipe, a plurality of guide pieces which are regularly distributed at the outer side of the installation ring and connected with the installation ring to form a whole body and guide oblique openings formed in the edge of at least one side surface of each guide piece. The spacing nets in various shapes are ingeniously arranged between the adjacent disc-type membranes to separate the adjacent membranes, so that the requirements of various application fields can be met; and water treatment liquid is guided among the membranes, so that the binding of each two adjacent membranes is effectively avoided, the contact area between a membrane face and treatment water is increased under the situation of not increasing the overall size of the membrane stack, the water treatment efficiency is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of water treatment equipment, in particular to a novel water treatment membrane stack for high-efficiency filtration. Background technique [0002] Membrane technology, known as the water treatment technology of the 21st century, has developed rapidly in the past 40 years. Compared with traditional water treatment technology, membrane technology has the advantages of energy saving, less investment, easy operation and high treatment efficiency, and its application has brought huge environmental and economic benefits to human beings. Membrane technology has a wide range of applications in water treatment, both for drinking water treatment and wastewater treatment, and also involved in water treatment in some special industries. [0003] In the application process of membrane technology, especially in the application of membrane stacks with stacked membranes, the distance between membranes cannot match the cir...

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Problems solved by technology

[0003] In the application process of membrane technology, especially in the application of membrane stacks with stacked membranes, the distance between membranes cannot match the circulation rate of water to be treated in different application environments, which often leads to sticking of adjacent membranes. For example, a water treatment membrane stack whose diaphragms are stacked horizontally disclosed in patent 201510985976.3, if the spacing between the diaphragms is too small or the water flow disturbance is too large in the application environment, plus the permeable adsorption effect of the membrane surface itself, It is easy for two membranes to be bonded, which not only reduces the membrane surface area for effective water treatment and reduces the water treatment efficiency, but also makes it easy for dirt to accumulate on the bonded membrane surface, aggravating the membrane The degree of pollution will greatly shorten the service life of the membrane stack

At present, the conventional solution adopted in the industry is to increase the installation distance of the diaphragm to ensure the safe distance between two adjacent diaphragms. Although it can reduce the pollution of the membrane surface to a certain extent and improve the service life, the excessive diaphragm distance will reduce the The water treatment capacity per unit volume of the membrane stack is reduced, and the water treatment capacity of the same volume of the membrane stack is reduced. To achieve the same level of water treatment, it is necessary to increase the volume of the membrane stack and increase the corresponding production cost, which is not suitable for some application environments. In a narrow place, there are many inconveniences

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