LMB Series Cross-Flow Dry-Wet Water-Saving Closed Cooling TowerCross-Flow Closed Circuit
A cross-flow dry-wet water-saving closed cooling tower using coil closed-loop heat exchange for media isolation and water-saving operation.
The LMB series is the flagship closed cooling tower line of LANXUN. It uses coil closed-loop heat exchange, where the cooling medium flows inside the coil, completely isolated from the outside air and spray water, suitable for high-end industrial scenarios with strict requirements on cooling-water quality. The cross-flow structure allows the coil and spray system to be serviced from the side for convenient maintenance. The dry-wet design can switch to dry operation in low-temperature seasons, greatly saving water. Covering 24 models from 50 to 1000m³/h, it is widely used in semiconductors, data-center liquid cooling, precision manufacturing, and chemical industries.
Key Highlights
Closed Loop, Media Isolation
Coil closed-loop circulation completely isolates the cooling medium from the outside, avoiding water-quality contamination and scaling, suitable for pure-water/ethylene-glycol media.
Water-Saving Operation
Dry-wet dual-mode operation; switching to dry operation in low-temperature seasons saves over 50% water, with a comprehensive annual water-saving rate of 30%–40%.
Flexible Configuration (50–1000m³/h)
24 standard models cover the full range of closed-circuit cooling needs from small laboratories to large industry.
Easy Maintenance
The cross-flow structure allows side access to the coil and spray system without shutdown or draining, reducing maintenance costs.
Working Principle and Structural Features
The following content is excerpted from the LMB Series Cross-Flow Dry-Wet Water-Saving Closed Cooling Tower product manual
Working Principle
The LMB series cross-flow closed cooling tower uses a coil-type heat-dissipation device: hot water flows inside the coil in a sealed environment, while the tower's self-circulating cooling water and cold air flow outside the coil; the cold air and cooling water cross (flow crosswise), the hot water transfers heat through the coil wall to the cooling water and air, and the cold air simultaneously carries the cooling water's heat out of the tower, achieving cooling. The hot water operates entirely under a fully enclosed condition with constant water quality, providing excellent protection for the condensing system.
During operation, circulating water is pumped to the distribution pan at the top of the tower, distributed through nozzles onto the tower fill, and then evenly sprayed onto the outer surface of the condensing coil to form a very thin water film; the medium to be cooled enters from one end of the serpentine condensing coil and the cooled medium exits from the other end.
After absorbing heat from the medium, part of the cooling water evaporates into vapor and is discharged into the atmosphere by the axial fan; the non-evaporated cooling water is cooled by air as it passes through the high-efficiency PVC heat-dissipation fill, then exchanges heat with the next coil layer until it drips into the lower collection basin for reuse. The drift eliminator blocks non-evaporated droplets in the airflow and returns them to the basin to reduce cooling-water consumption, and a float valve in the basin automatically replenishes cooling water.
Stainless Steel Heat-Exchange Coil
During tube making, samples are regularly taken according to operating conditions for sealing tests, and finished coils undergo an air-tightness test and are pressure-held without leakage as required; the coil has a large specific surface area and a bundled design that makes installation and repair convenient.
Low-Noise Fan System
A low-speed, spatially twisted low-noise fan with a fully sealed energy-saving low-noise motor dedicated to cooling towers and a low-noise belt reducer; a gear drive is available in place of the standard belt drive.
Cross-Flow Distribution and Spraying
Circulating water is evenly distributed through the distribution basin and multi-orifice staged nozzles, combined with splash fill and PVC fill to enhance heat exchange, with a fully automatic spray pump supplying circulating water.
Four Tower-Body Materials
The certification covers four structural materials: -G all-galvanized steel plate, -S all-stainless steel plate, -FG FRP water basin + hot-dip galvanized frame, and -FS FRP water basin + stainless steel frame, all fitted with stainless steel tube heat exchangers.
Maintenance Access Design
The tower interior has an access door, walkway, and access-door ladder, and the exterior is fitted with a stair and safety cage, making daily maintenance inside the tower convenient.
Technical Specifications
| Model (LMB-xxx-G) | Cooling Water Flow (m³/h) | Coil Area (m²) | Spray Pump Power (kW) | Dimensions L×W×H (mm) | Operating Weight (kg) | Noise dB(A) |
|---|---|---|---|---|---|---|
| LMB-50-G | 50 | 120 | 1.1 | 2800×2000×3200 | 2800 | 52.0 |
| LMB-70-G | 70 | 160 | 1.5 | 3000×2200×3400 | 3200 | 52.8 |
| LMB-90-G | 90 | 200 | 1.5 | 3200×2400×3600 | 3600 | 53.5 |
| LMB-110-G | 110 | 250 | 2.2 | 3400×2600×3800 | 4000 | 54.0 |
| LMB-135-G | 135 | 300 | 2.2 | 3600×2800×4000 | 4500 | 54.6 |
| LMB-160-G | 160 | 360 | 3.0 | 3800×3000×4200 | 5000 | 55.2 |
| LMB-190-G | 190 | 430 | 3.0 | 4000×3200×4400 | 5600 | 55.8 |
| LMB-225-G | 225 | 510 | 4.0 | 4200×3400×4600 | 6200 | 56.3 |
| LMB-265-G | 265 | 590 | 4.0 | 4400×3600×4800 | 6800 | 56.8 |
| LMB-310-G | 310 | 680 | 5.5 | 4600×3800×5000 | 7500 | 57.3 |
| LMB-360-G | 360 | 780 | 5.5 | 4800×4000×5200 | 8200 | 57.8 |
| LMB-420-G | 420 | 900 | 7.5 | 5000×4200×5400 | 9000 | 58.3 |
| LMB-490-G | 490 | 1030 | 7.5 | 5200×4400×5600 | 9800 | 58.8 |
| LMB-570-G | 570 | 1180 | 7.5 | 5400×4600×5800 | 10600 | 59.2 |
| LMB-660-G | 660 | 1340 | 11.0 | 5600×4800×6000 | 11500 | 59.7 |
| LMB-760-G | 760 | 1510 | 11.0 | 5800×5000×6200 | 12400 | 60.1 |
| LMB-880-G | 880 | 1700 | 15.0 | 6000×5200×6400 | 13400 | 60.5 |
| LMB-1000-G | 1000 | 1900 | 15.0 | 6200×5400×6600 | 14400 | 60.9 |
Product Gallery
Images are from the LMB Series Cross-Flow Dry-Wet Water-Saving Closed Cooling Tower product manual
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