Data Center Water Cooling

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Immersion liquid cooling

Immersion liquid cooling is a typical direct contact liquid cooling, which immerses the heating element in the cooling liquid and relies on the flow circulation of the liquid to take away the heat generated by the operation of IT equipment. Because the heating element is in direct contact with the coolant, immersion liquid cooling has higher heat dissipation efficiency, lower noise (no fans at all), and can solve higher heat density.

The current mainstream method is to immerse the server in a specially designed box or a custom-designed casing for the server. However, this architecture reduces the utilization of the data center building space. Without changing the existing data center deployment architecture, the casing Wrap each server with coolant.

1. Single-phase liquid cooling

It means that the coolant does not undergo phase change during the circulation and heat dissipation process and remains in a liquid state. Single-phase liquid cooling requires a high boiling point of the coolant, relatively simple control of coolant evaporation and loss, high compatibility with IT equipment components, and less contamination of the cooling medium, but its efficiency is lower than that of two-phase liquid cooling.

2. Two-phase liquid cooling

Refers to the phase change of the coolant during the circulation and heat dissipation process. Two-phase liquid cooling has higher heat transfer efficiency and does not require a pump to drive the fluid circulation. However, the control of coolant evaporation and loss is relatively complicated. Although a closed box can solve the problem of coolant evaporation and loss, it will cause the box to be damaged due to phase change. The pressure of the body changes, and the design and production of pressure vessels require strict supervision to ensure the safety of use.

 

 

Cold plate liquid cooling

The main heating components are fixed on the cold plate, and rely on the liquid flowing through the cold plate to take away the heat for the purpose of heat dissipation. It is a typical indirect contact liquid cooling. Since other heating components such as hard drives and power supplies still require fan-driven air to dissipate heat, Servers currently using cold plate liquid cooling are also called gas-liquid dual-channel servers.

The liquid cooling of data center equipment water coolers is based on the contact between the liquid and the heating device. It is mainly used in high-performance computing in the computer and IT fields and can solve the heat dissipation problem of data centers with higher heat density.

 

Model	ZLFQ-15	ZLFQ-25	ZLFQ-50	ZLFQ-75	ZLFQ-100	ZLFQ-150
Temp range	+5℃～35℃	+5℃～35℃	+5℃～35℃	+5℃～35℃	+5℃～35℃	+5℃～35℃
Cooling water	5℃~30℃ Adopt Siemens/Honeywell regulating valve to control cooling water flow
Temperature control accuracy	±0.2℃	±0.5℃	±0.5℃	±0.5℃	±0.5℃	±0.5℃
flow control	10～25L/min	25～50L/min	40～110L/min	70～150L/min	150～250L/min	200～400L/min
	The flow control is adjusted by frequency converter, the accuracy is ±0.3L/min
Cooling capacity (MAX)	15kW	25kW	50kW	75kW	100kW	150kW
Storage volume	15L	30L	60L	100L	150L	200L
Brine	Water, silicone oil, fluorinated liquid, ethylene glycol aqueous solution, etc.
Medium pipeline	SUS304	SUS304	SUS304	SUS304	SUS304	SUS304
In and out interface size	G3/4	G1	G1	DN32	DN40	DN50
Cooling water interface	G3/4	G1	DN40	DN50	DN50	DN65
Cooling water flow 7～20℃	2.5m³/h	4m³/h	8m³/h	13m³/h	17m³/h	25m³/h
380V 50HZ	1kW	1.5kW	3kW	4kW	5kW	6kW
shell	Cold-rolled sheet spray RAL7035

 

Model	ZLFQ-200	ZLFQ-250	ZLFQ-300	ZLFQ-400	ZLFQ-500
Temp range	+5℃～35℃
Temp accuracy	±0.5℃
Flow control	15～30m³/h	20～35m³/h	25～40m³/h	30～60m³/h	40～70m³/h
Cooling capacity（MAX）	200kW	250kW	300kW	400kW	500kW
Storage volume	250L	300L	600L	1000L	1200L
Medium	Water, silicone oil, fluorinated liquid, ethylene glycol aqueous solution, etc.
Medium pipeline	SUS304
In and out interface size	DN65	DN65	DN65	DN80	DN80
Cooling water interface	DN80	DN80	DN100	DN100	DN125
Cooling water flow 7～20℃	34m³/h	43m³/h	51m³/h	69m³/h	86m³/h
Power supply 380V 50HZ	7kW	7kW	8kW	9kW	13kW
shell	Cold-rolled sheet spray RAL7035

 

 

We provide complete temperature control system design and manufacturing. From standard models to complete customized products up to 1000 tons. We specialize in customer service and are dedicated to helping each customer have the optimal temperature control system for their specific need.

We provide non-standard customized solutions. 

 

Email: info@lneya.com    WeChat ID: +8615251628237    WhatsApp: +86 15251628237