智能控制系统
Air-cooled direct expansion ice storage integrated unit
RC-140 / RC-280
Ice storage cooling utilizes the low-peak electricity during the night to store ice, and then melts the ice during the peak electricity period during the day to provide cooling. This method helps balance the power grid load and saves the cooling operation costs for users. It has been widely applied in many large-scale central air conditioning systems.
However, the ice storage cooling system is more complex than the conventional air conditioning system and requires professional design, construction and debugging, which limits the application of this technology in small and medium-sized systems.
Secondly, due to the low cooling temperature of ice storage and the resulting decrease in cooling efficiency, both ice production and ice melting require the operation of the ethylene glycol pump. This has earned it the reputation of "saving money but not being energy-efficient", which also limits the application of ice storage in some areas where the price differences between peak and off-peak electricity are not significant.
The air-cooled module ice storage system has commercialized the ice storage engineering product and achieved high integration. It only requires simple connection of pipelines, and can be operated by simply powering on and supplying water, making it more suitable for small and medium-sized projects.
模块化
Host + Ice Melt Combined Cooling Mode
When valves V1 and V2 open simultaneously, chilled‑water circulation passes through the plate heat exchangers of the refrigeration unit and ice‑storage device. Both the refrigeration unit and ice‑storage device exchange heat with circulating chilled water, which is then delivered by the chilled‑water pump to the air‑conditioning terminal system for cooling.
Icing for cooling mode
When valve V2 is open, chilled water circulates through the plate heat exchanger of the ice‑storage device for heat exchange. The chilled‑water pump then delivers water to the air‑conditioning terminal system for cooling.
Host direct supply cooling mode
When valve V1 is open, chilled water from the refrigeration unit completes heat‑exchange, and is then delivered by the chilled‑water pump to the air‑conditioning terminal system for cooling.
Cold storage + ice melting cooling mode
The main refrigeration unit switches to ice‑storage mode to charge the ice‑storage device. Valve V2 is opened. Circulating chilled water exchanges heat via the plate heat exchanger of the ice‑melting device, then is delivered by the chilled‑water pump to the air‑conditioning terminal system for cooling.
Core advantages of the product
—
Compared with traditional ice storage systems
Integrated finished equipment
Say goodbye to complex design, installation and debugging. Plug and play,
suitable for small and medium-sized projects.
Dual energy conservation and
efficiency improvement
Eliminate the energy consumption of the ethylene glycol pump,
reduce the loss of the first-stage heat exchange,
and increase the system efficiency by 10% to 28%.
Day-night temperature difference enables
Taking advantage of the wind-cooling feature, the condensation temperature at night
is lower, and the energy efficiency of the ice storage mode is superior to that of traditional equipment.
Modular design
The unit operates independently. A single unit failure will not affect the entire system. It can be flexibly expanded and invested in stages.
Save space
Compact structure, water inlet and outlet on the same side, flexible on-site layout, and saves installation space.
Superior dehumidification
The lowest temperature available is 3-12℃ cold water, suitable for meeting the dehumidification requirements of workshops and precision scenarios.
Operating Strategy Pattern
—
Under designed daily load conditions, cooling is provided by combined operation of modular units and ice melting during daytime air‑conditioning operation. At 75% of the designed daily AC load, ice melting delivers cooling in peak‑price hours, while the main unit takes priority during peak‑price periods. At 50% of the designed daily AC load, full ice‑melting cooling is applied throughout peak‑price hours; modular units need to be activated for cooling in partial off‑peak periods. At 25% of the designed daily AC load, cooling is achieved by ice‑melting throughout the whole day.
Official standard selection parameters
—
RC-140 / RC-280
Equipment installation and commissioning
—
I. Equipment Foundation Requirements
The equipment should be installed on a concrete foundation. It is recommended that the concrete grade be ≥ C30, with a thickness of ≥ 300mm, and the area extending beyond the base edge of the equipment should be ≥ 200mm (to prevent settlement).
The flatness error of the concrete foundation should be ≤ ±3mm/m², and the overall error of the entire plane should be ≤ 5mm.
Drainage ditches with a slope of ≥ 2% should be set around the foundation to prevent water accumulation from soaking the foundation.
If the equipment is installed on the roof, the structural engineer must calculate the roof's load-bearing capacity to ensure that the live load (equipment + water weight) ≤ the roof's design load, and reserve a safety margin (recommended ≥ 1.5 times the equipment's operating weight). For old roofs, the integrity of the waterproof layer must be checked to avoid water leakage after the equipment is in place.
II. Equipment Handling
Equipment handling can be done using forklifts or cranes (with anti-slip pallets/hang-up belts). During hoisting, the center of gravity of the equipment should be evenly distributed. The arm of the forklift must be greater than 2/3 of the equipment's width, and the type of crane model should be selected reasonably based on the lifting height and arm length.
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Copyright © Guangzhou Rucheng Refrigeration Equipment Co., Ltd. Guangdong ICP Filing No. 2026121889‑1
Copyright ©2026 All Rights Reserved
Copyright © Guangzhou Rucheng Refrigeration Equipment Co., Ltd.
Guangdong ICP Filing No. 2026121889‑1
