Spiral wound assembly with integrated flow restrictor and sensor

A spiral wound assembly (38) comprising:

• i) a pressure vessel (40) including an inner chamber (39), feed inlet (42), concentrate outlet (44) and permeate outlet (46);
• ii) a spiral wound membrane module (2) comprising at least one membrane envelope (4) wound about a permeate collection tube (8) extending along an axis (X) between a first end (13′) and a second end (13) and forming an inlet scroll face (30) and an outlet scroll face (32);
• wherein the spiral wound membrane module (2) is located within an inner chamber (39) of the pressure vessel (40) with the inlet scroll face (30) in fluid communication with the feed inlet (42), the outlet scroll face (32) in fluid communication with the concentrate outlet (44) and the permeate collection tube (8) in fluid communication with the permeate outlet (46);
• and
• wherein the spiral wound assembly (38) is characterized by comprising:
• iii) a flow restrictor (54) comprising:
• a) a first (56) and second plate (58) in sealing contact with one another;
• and
• b) a fluid channel (62/74) located between the first (56) and second (58) plate and including a first end (64/76) in fluid communication with at least one of the concentrate outlet (44) and the permeate outlet (46), and a second end (66/78) adapted for discharging fluid from the spiral wound assembly (38);
• and
• iv) a sensor sheet (68) comprising at least one sensor element (70/80) located between the first (56) and second (58) plates and in contact with the fluid channel (62/74), wherein the sensor sheet (68) is adapted for measuring a property of fluid passing through the fluid channel (62/74).