A tubular membrane pervaporation separation system, comprising a heater, one or multiple membrane separators arranged in parallel, a condenser and a vacuum pump; the separator comprises a vacuum vessel, a concurrent heating vessel and one or multiple pervaporation lines arranged in parallel; the line comprises membrane tube bundle modules and concurrent heating modules connected in series or in a series-parallel hybrid form, in the line, the membrane tube bundle modules are arranged between two adjacent concurrent heating modules; the vacuum vessel is connected to the condenser and the vacuum pump in sequence; the concurrent heating vessel is provided with an inlet and an outlet; one end of the line is connected to the heater and the other end is used to discharge; the modules are placed respectively in the vacuum vessel and the concurrent heating vessel, comprise one or multiple membrane tubes and concurrent heating tubes arranged in parallel respectively.

The present invention addresses to a high-pressure vessel for packaging hollow fiber type membranes with application in the field of separation process with contactors with membranes aiming at a compact device/piece of equipment configured for the packaging of hollow fiber type bundles that can be used for various fluid separation processes such as liquid-liquid, liquid-gas and gas-gas, capable of working at high-pressures, enabling adequate hydrodynamic conditions and easily scalable. It is called a module the general piece of equipment, consisting of the vessel (A or C), object of the present invention, and the membranes packed inside the vessel. This piece of equipment consists of a vessel inside which the membranes are placed (14), and two heads attached at the ends (B or D). Each head has two connection points, thus allowing this device to be used with membrane contactors-type separation systems, such as “classical” permeation systems (liquid-liquid, gas-gas, pervaporation).

A two-stage filter enclosed within a single vessel is provided. The two-stage filter is provided in the form of the vessel having a first filtration stage configured to capture particles of a first size, and a second filtration stage downstream of the first filtration stage and in fluid communication with the first filtration stage configured to capture particles of a second size, wherein the first size is larger than the second size. The first filtration stage may comprise a porous media. The second filtration stage may comprise one or more membrane filters.

A water purification device, with a first pressure cylinder, a second pressure cylinder, a first connecting piece and a second cylinder block arranged successively from bottom to top, and further having a first cylinder block arranged inside the second cylinder block. The first pressure cylinder and the second pressure cylinder both are open at one end and formed with a first through-hole at the other end. The first cylinder block and the second cylinder block both are open at two ends and arranged in a hollow shape. A water inlet, which is communicated with a flow passage formed between the first cylinder block and the second cylinder block, is formed on the second cylinder block, and a water outlet pipe communicated with the first cylinder block is inserted into an outer wall of the first pressure cylinder.

A water purification device, including a first pressure cylinder, a second pressure cylinder, a first connecting piece and a second cylinder block arranged successively from bottom to top, and further comprising a first cylinder block arranged inside the second cylinder block. The first pressure cylinder and the second pressure cylinder both are open at one end and formed with a first through-hole at the other end; the first cylinder block and the second cylinder block both are open at two ends and arranged in a hollow shape. A water inlet, which is communicated with first flow passages formed between the first cylinder block and the second cylinder block, is formed on the second cylinder block, and a water outlet pipe, communicated with the first cylinder block, is inserted into an outer wall of the water purification device.

A reverse osmosis apparatus for a seawater desalination system is provided. The reverse osmosis apparatus includes a barrel in which a plurality of vessels receiving reverse osmosis membrane units are arranged, a feed tank provided in an intermediate portion of the barrel and connected to a seawater inlet, a first water tank provided inside a first end portion of the barrel and connected to a plurality of first vessels connected to a first side of the feed tank, and a second water tank provided inside a second end portion of the barrel and connected to a plurality of second vessels connected to a second side of the feed tank.

A reverse osmosis apparatus for a seawater desalination system is provided. The reverse osmosis apparatus includes: a barrel in which a plurality of reverse osmosis membrane units with a reverse osmosis membrane wrapped in each reverse osmosis membrane unit are arranged; an inflow and outflow portion provided at a first end of the barrel and connected to a seawater inlet a high salinity water outlet; a partition wall configured to partition an inner space of the inflow and outflow portion into a first stage and a second stage; and a transport space portion provided in a second end of the barrel and configured to guide water being moved from a plurality of reverse osmosis membrane units arranged in the first stage to move to a plurality of reverse osmosis membrane units arranged at the second stage, wherein part of seawater fed to the inflow and outflow portion is fed around the tubes in the barrel and insulates the plurality of reverse osmosis membrane units in the barrel from external high temperature while being moved, and flows into the transport space portion.

The reverse osmosis system with at least one high pressure pump, which supplies untreated water to at least one module pipe, in which a membrane with a permeate collecting pipe is arranged, includes a permeate outlet of the at least one module pipe that is connected by means of a first conduit to a permeate tank, which is in communication by means of a further conduit, connected into which there is a permeate supply pump, with a loop feed line, to which a plurality of dialysis devices are connected and that branching off from the first conduit there is a bypass conduit, which discharges into the further conduit downstream of the permeate tank and the permeate supply pump.

The reverse osmosis system with at least one high pressure pump, which supplies untreated water to at least one module pipe, in which a membrane with a permeate collecting pipe is arranged, includes a permeate outlet of the at least one module pipe that is connected by means of a first conduit to a permeate tank, which is in communication by means of a further conduit, connected into which there is a permeate supply pump, with a loop feed line, to which a plurality of dialysis devices are connected and that branching off from the first conduit there is a bypass conduit, which discharges into the further conduit downstream of the permeate tank and the permeate supply pump.

A filter device includes an inlet manifold, an outlet manifold and membrane filter units. Each membrane filter unit has an inlet opening for a fluid flow to be processed, a first outlet opening for a retentate portion of the fluid flow, and a second outlet opening for a remaining portion of the fluid flow. Each inlet opening is fluidly connected to the inlet manifold, and each first outlet opening is fluidly connected to the outlet manifold. The two membrane filter units are staggered and are not axially aligned with respect to each other. One of the membrane filter units is fluidly connected to the inlet manifold and to the outlet manifold via a first set of conduits, and the other membrane filter unit is fluidly connected to the inlet manifold and to the outlet manifold via a second set of conduits.