Reverse Osmosis Membrane Rack/Stack: Core Separation Assembly for Industrial RO Systems

Reverse Osmosis Membrane Rack/Stack: Core Separation Assembly for Industrial RO Systems

Reverse osmosis membrane rack/stack is the core separation assembly determining water purification efficiency of industrial water treatment lines. It can be matched with finished 5 tons/hour reverse osmosis equipment, and engineers can formulate assembly layout by referencing standardized RO equipment construction/installation plan. As the carrier of RO membrane elements, this modular rack structure realizes efficient salt separation, supports flexible capacity expansion and modular maintenance, and becomes the key replaceable core component for new water treatment projects and old equipment upgrading.

Product Description

Reverse osmosis membrane rack/stack is the modular assembly composed of membrane housings, fixed support frame, connecting pipelines, high-pressure fittings and instrument interfaces, specially used to install and fix RO membrane elements. All water separation and desalination processes are completed inside this assembly. Many manufacturers choose to purchase independent membrane racks for self-assembly, or use them to replace aging assemblies on existing water treatment equipment.

This membrane rack series has diversified specification options. Small-size racks can be directly assembled to constitute complete 5 tons/hour reverse osmosis equipment, while multiple sets of racks can be connected in parallel to expand treatment capacity. EPC contractors can design pipeline routing and foundation layout strictly according to complete RO equipment construction/installation plan. Different from integrated whole-set RO equipment, independent membrane rack focuses on separation function only, without pretreatment tanks and control cabinet as standard configuration. Customers can freely match membrane elements, pumps and control systems according to raw water quality. Widely used in new-built water purification projects, old equipment renovation, mobile water treatment skids and containerized water stations, it provides high flexibility for customized industrial water treatment solutions.

Working Principle

Reverse osmosis membrane rack/stack provides sealed high-pressure operation environment for internal RO membrane elements. Pretreated qualified raw water is transported through inlet pipeline and evenly distributed into each membrane housing fixed on the rack. Under stable driving pressure higher than natural osmotic pressure, water molecules pass through semi-permeable membrane surface to form purified product water.

Dissolved salts, colloids and suspended pollutants are intercepted inside membrane elements and flow out through concentrated water pipeline of the membrane rack. The rack is reserved with independent interfaces for sampling, pressure monitoring and flushing. Operators can track pressure difference and water quality changes in real time. No matter matched with small-scale 5 tons/hour reverse osmosis equipment or large parallel multi-rack systems, the separation principle remains consistent. With reasonable pretreatment configuration, the whole membrane stack can continuously reach the technical standard of Industrial RO equipment with recovery rate ≥75%.

Technical Features

1. Modular standardized frame structure: 

Single rack can work independently; multiple racks can be connected in parallel to quickly expand water production capacity.

2. Integrated high-pressure piping layout: 

Optimized flow channel design reduces local pressure loss and ensures uniform water distribution for each membrane housing.

3. Complete reserved external interfaces: 

Equipped with sampling port, pressure transmitter interface and chemical flushing pipeline connector for daily monitoring and maintenance.

4. Diversified material options: 

Support stainless steel or carbon steel epoxy anti-corrosion frame to adapt to different workshop atmospheric environments.

5. Clear on-site assembly specification: 

Pipeline connection and equipment arrangement can be implemented referring to complete RO equipment construction/installation plan.

Product Advantages

1. High flexibility for scheme customization: 

Customers can freely select membrane element models and supporting power units without being limited to fixed integrated equipment configuration.

2. Convenient segmented maintenance: 

Single membrane rack can be isolated for overhaul without shutting down all parallel production lines.

3. Flexible capacity upgrading: 

New membrane racks can be added later according to growing water demand, no need to replace the whole water treatment system.

4. Adaptable to multiple application scenarios: 

Can be installed in fixed workshops, skid platforms and container stations, and assembled into complete 5 tons/hour reverse osmosis equipment.

5. Convenient spare parts replacement: 

Aging membrane stack can be directly replaced, shortening equipment downtime during renovation projects.

Application Fields

1. New industrial water treatment EPC projects: 

As core separation assembly to build customized reverse osmosis water purification systems.

2. Old factory water equipment renovation: 

Replace aged membrane stacks to restore water yield and desalination performance.

3. Skid-mounted and containerized water treatment stations: 

Installed as the core component inside mobile water purification platforms.

4. Small manufacturing workshops: 

Combined with auxiliary equipment to form complete 5 tons/hour reverse osmosis equipment.

5. Power plant boiler feed water pretreatment: 

Multiple membrane racks run in parallel to realize large-volume continuous water desalination.

6. Chemical park wastewater reuse projects: 

Layout and pipeline construction carried out following standardized RO equipment construction/installation plan.

FAQs

Q1: What is the difference between Reverse osmosis membrane rack/stack and complete reverse osmosis equipment?

A1: Membrane rack is only the core separation assembly composed of membrane housings and support frame. Complete RO equipment integrates pretreatment, pump set, membrane rack and control cabinet as one integrated unit.

Q2: Can this membrane rack be assembled to form 5 tons/hour full set RO equipment?

A2: Yes. We can provide matched standard specification racks, which can be combined with pumps, filters and control components to constitute complete 5 tons/hour reverse osmosis equipment.

Q3: Is there standardized technical document for on-site pipeline layout of membrane rack?

A3: Yes. We provide complete drawing specifications and installation guidance in accordance with formal RO equipment construction/installation plan.

Q4: Can multiple reverse osmosis membrane racks operate in parallel simultaneously?

A4: Yes. Modular design supports parallel connection. Unified flow distribution pipeline can be equipped to realize coordinated operation and capacity expansion.

Q5: What recovery rate can membrane stack achieve under stable inflow water quality?

A5: When pretreatment system works normally, the membrane stack can steadily meet the specification requirement of Industrial RO equipment with recovery rate ≥75%.

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