High-pressure double-membrane water treatment device

Abstract

The invention discloses a high-pressure double-membrane method water treatment device, and belongs to the technical field of water treatment equipment. A water inlet pipeline is connected with a dosing device; a filter a, a high-pressure pump and a control valve a are arranged on the water inlet pipeline; the water inlet pipeline is connected with a plurality of water inlet branches; a control valve b and a high-pressure ultrafiltration membrane group are arranged on each water inlet branch; a water outlet pipe b of the high-pressure ultrafiltration membrane group is connected with a water outlet manifold a through a control valve c, a control valve d is arranged on the water outlet manifold a, the water outlet manifold a is connected with a reverse osmosis membrane group a, the water outlet pipe a of the high-pressure ultrafiltration membrane group is connected with a water outlet pipe c, the water outlet pipe c is connected with a water outlet manifold b, and a control valve m is arranged on the water outlet pipe c. The water treatment device has the beneficial effects that the occupied area and cost of the device are reduced, the device can operate normally in the cleaning process, and efficiency is improved.

Description

Technical field [0001] The invention relates to a double-membrane water treatment system, which belongs to the technical field of water treatment equipment. Background technique [0002] The double-membrane process uses ultrafiltration membranes as the pretreatment unit before reverse osmosis or nanofiltration, which can greatly improve the water quality of reverse osmosis or nanofiltration than conventional pretreatment, and extend the membrane elements of reverse osmosis or nanofiltration. The cleaning cycle can extend the service life of membrane elements. In the conventional double-membrane process, an intermediate water tank needs to be installed at the water outlet of the ultrafiltration membrane, and then reverse osmosis or nanofiltration membranes are connected through a water pump and connecting pipes. The area is large and the equipment cost is high. When the ultrafiltration membrane needs to be cleaned, Downtime, low work efficiency. Summary of the invention [0003] ...

AI Technical Summary

Problems solved by technology

In the conventional double-membrane process, the water outlet of the ultrafiltration membrane needs to be equipped with an intermediate water tank, and then the reverse osmosis or nanofiltration membrane is connected through the water pump and the connecting pipeline, which occupies a large area and the equipment cost is high. Downtime, low work efficiency

Images