Concrete Pouring Cooling Low-Temperature Water Chiller Unit
Unit Introduction
Concrete pouring is crucial during the construction process. The cement hydration reaction releases heat, which can lead to excessively high temperatures. The standard pouring temperature for concrete ranges from 5°C to 25°C. Excessively high temperatures can cause cracking and fissures in the concrete, affecting its strength and toughness. Cooling measures are necessary, and using a concrete cooling low-temperature water chiller unit to control the water temperature is essential. Mixing concrete with water below 10°C can achieve the suitable temperature required for concrete pouring.
Unit Classification
1. By Cooling (Heat Dissipation) Method
A, Water-cooled: (Shell and Tube Type) Condenser equipped with a cooling tower for heat dissipation.
B, Air-cooled: (Finned Type) Condenser dissipates heat through the unit's own fans.
2. By External Structure
A, Enclosed Type: Features an external casing with built-in water pump and water tank.
B, Open Type: No external casing; evaporator and condenser are shell and tube type, compressor is mounted above the evaporator, no water pump included, requires an external water tank and circulation pump.
3. By Evaporator Structure: Closed Low-Temperature Water Chiller: Refers to an evaporator of shell and tube type, which can house a water pump internally or externally, may or may not have an external casing, and the condenser type depends on whether it is air-cooled or water-cooled.
Product Advantages
1. Utilizes semi-hermetic screw compressors with high cooling capacity, integrated motor and compressor,eliminating concerns of oil leakage.Features safety, reliability, and economy. The company offers one year of free maintenance,lifetime support.Comprehensive after-sales servicehas earned widespread customer acclaim. Given that large-scale concrete constructions such as highways, high-speed railways, tunnels, hydropower projects, dams, bridges, and hydroelectric power stations often involve massive volumes of concrete, ensuring that no cracks form in thick concrete structures is critical. Enhancing project quality requires reducing the heat of hydration and pouring temperature of concrete. To this end, our company has designed a new generation of concrete cooling low-temperature water chiller units through engineering efforts to lower the discharge temperature of concrete, concrete temperature can be reduced to below 15°C. In summer, the ambient temperature of cement, gravel, and sand is high, and water temperature is also elevated, which is unfavorable for mixing. Therefore, using the concrete cooling low-temperature water chiller unit to directly provide chilled water at 5-10℃, or an ice-water mixture at 0-2℃, can fully meet the process cooling source requirements for concrete cooling.
2. The concrete cooling low-temperature water chiller unit employs screw compressors as the main refrigeration component, combined with a fully automatic control system. It can automatically select single-stage or multi-stage cooling based on inlet and outlet water temperatures or seasonal operating modes (summer/winter), featuring energy efficiency, time-saving, stability, and environmental friendliness. To meet the practical production needs of a broad customer base as much as possible, we can design, produce, and supply units tailored to specific on-site construction requirements.
Unit Applications
Widely used in large-scale construction projects such as bridges, dams, water resources and hydropower bureaus, including high-speed railways, tunnels, hydropower projects, dams, hydroelectric power stations, and civil concrete mixing and cooling. It can control the temperature required for modern industrial mechanized production, enhancing production efficiency and product quality.
Product Features
1.Temperature Control: -45℃ to 30℃ ±1, adjustable temperature
2.Cooling Capacity Range: 102,500 Kcal/h to 654,800 Kcal/h.
3.In addition to the general characteristics of water-cooled screw unit series, this series of units has the significant advantage of not requiring a water cooling system, making it usable wherever there is good ventilation.
4.Beyond standard products, our company can customize various special low-temperature water chiller units and heat pump units according to customer requirements, providing on-site assembly, technical guidance, and commissioning services.
Technical ParametersAir-filled type chillers technical Parameters
Model
Model | Cooling Capacity
Refrigerating capacity | Compressor
Compressor | Evaporator
Evaporator | Condenser
Condenser | Water Pump
water pump | Dimensions Shape dimension | Net Weight Net weight |
kcal/h | kW | kW | hp | L | inch | m3/h | m3/h | kW | MPa | (mm) | (kg) |
JRA-40S | 103,200 | 120 | 30 | 40 | / | 2.5 | 26 | 40,000 | / | / | 2000×650×1600 | 1150 |
JRA-50S | 129,000 | 150 | 37.5 | 50 | / | 3" | 30 | 50,000 | / | / | 2000×650×1650 | 1230 |
JRA-60S | 154,800 | 180 | 45 | 60 | / | 4" | 36 | 60,000 | / | / | 2500×650×1650 | <極>1360
JRA-70S | 180,600 | 210 | 52.5 | 70 | / | 4" | 42 | 70,000 | / | / | 2550×650×1650 | 1410 |
JRA-80S | 206,400 | 240 | 60 | 80 | / | 4" | 48 | 80,000 | / | / | 2800×650×1800 | 1490 |
JRA-90S | <極>232,200
270 | 67.5 | 90 | / | 4" | 56 | 90,000 | / | / | 2800×650×1800 | 1580 |
JRA-100S | 258,000 | 300 | 75 | 100 | / | 4" | 62 | 100,000 | / | / | 3200×650×1800 | 1650 |
JRA-110S | 283,800 | 330 | 82.5 | 110 | / | 4" | 68 | 110,000 | / | / | 3300×800×1800 | 1720 |
JRA-120S | 309,600 | 360 | 90 | 120 | / | 4" | 74 | 120,000 | / | / | 3500×800×1800 | 1780 |
JRA-130S | 335,400 | 390 | 97.5 | 130 | / | 4" | 80 | 130,000 | / | / | 3500×800×1800 | 1860 |
JRA-140S | 361,200 | 420 | 105 | 140 | / | 4.5" | 86 | 140,000 | / | / | 3600×800×1900 | 1930 |
JRA-150S | 399,900 | 456 | 112 | 150 | / | 4.5" | 92 | 150,000 | / | / | 3600×800×1800 | 2050 |
JRA-160S | 426,560 | 496 | 120 | 160 | / | 4.5" | 106 | 160,000 | / | / | 3900×1100×1600 | 2170 |
JRA-180S | 479,880 | 558 | 135 | 180 | <極>/ | 4.5" | 112 | 180,000 | / | / | 4100×1100×1600 | 2250 |
JRA-200S | 533,200 | 620 | 150 | 200 | / | 4.5" | 118 | 200,000 | / | / | 4100×1400×1600 | 2340 |
