Precision Water-cooled Chilled Water Unit: In-depth Analysis of Millikelvin (mK) Level Temperature Control Solution - Extreme Test (Nanjing)


Release time:

2025-05-30

Precision water-cooled chiller units independently developed by Jice (Nanjing) Technology Co., Ltd., with milli-Kelvin (mK) level temperature control accuracy (±0.001℃), highly efficient and stable system design, and multi-scenario adaptability, have become core temperature control equipment in high-end fields such as semiconductors, medical, and optics. This article explores three major dimensions: technical principles, product features, and application scenarios, analyzing how it achieves precise temperature regulation through core technologies such as PID control, reverse Carnot cycle, and plate heat exchangers, and highlights its practical application value in precision manufacturing and scientific research, providing industry users with a reference for selecting high-performance temperature control equipment.

I. GICE (Nanjing) Technology Co., Ltd. Precision Water-cooled Chilled Water Units: Technical Principles Build Temperature Control Barriers

GICE (Nanjing) Technology Co., Ltd.'s Precision Water-cooled Chilled Water Units integrate multiple patented technologies to create core capabilities in ultra-precision temperature control:

(I) High-Precision Temperature Control Technology: The "Nerve Center" of Dynamic Balance

The unit is equipped with a self-developed high-precision temperature acquisition module which captures real-time water supply temperature data and transmits it to the controller, achieving precise calculation and dynamic adjustment of temperature deviations through stepless regulation of the chilled water valve and synergistic operation with electric heaters combined with PID algorithm and patented staged temperature control technology to achieve precise calculation and dynamic adjustment of temperature deviations. For example, in semiconductor extreme ultraviolet lithography, this technology can control Precision Water-cooled Chilled Water Units 's outlet water temperature fluctuation within ±0.001℃ meeting the stringent requirements for temperature stability in nanoscale manufacturing.

(II) Refrigeration Cycle: Industrial-Grade Innovative Practice of the Reverse Carnot Principle

Based on the reverse Carnot cycle principle, Precision Water-cooled Chilled Water Units achieves efficient heat transfer through the precise collaboration of four major components: compressor, evaporator, condenser, and expansion valve:
  • Adiabatic Compression : Low-temperature, low-pressure refrigerant vapor is converted into high-temperature, high-pressure gas by the compressor;
  • Isothermal Condensation : High-temperature, high-pressure gas releases heat to the cooling water in the condenser, condensing into liquid;
  • Adiabatic Expansion : High-pressure liquid is throttled through the expansion valve, becoming a low-temperature, low-pressure gas-liquid mixture;
  • Isothermal Evaporation : The mixture absorbs heat from the chilled water in the evaporator, completing the refrigeration cycle.
    This process, by precisely controlling the refrigerant flow and pressure, lays the physical foundation for Precision Water-cooled Chilled Water Units 's ultra-precision temperature control.

(III) Intelligent Control Algorithms: The "Digital Engine" for Precision Upgrades

  • PT100 temperature sensor and PID control algorithm form the basic temperature control link, with control precision reaching ±0.1℃~±0.01℃;
  • high-precision staged temperature control patented design (such as tiered refrigeration circuits) further refines control levels, with some models incorporating adaptive fuzzy control algorithm which in complex scenarios like laser processing and medical equipment, elevates Precision Water-cooled Chilled Water Units 's temperature control precision to ±0.001℃ (milli-Kelvin level)

(IV) Heat Exchanger Technology: The "Hardware Foundation" for Efficiency and Reliability

Precision Water-cooled Chilled Water Units Utilizing plate heat exchangers their micro-channel structure and corrugated plate design increase the heat transfer coefficient by 20%~40%, while offering advantages such as compact size and easy maintenance; stainless steel/copper materials enhance corrosion resistance, adapting to the high requirements for water quality and cleanliness in semiconductor and medical industries; the application of environmentally friendly refrigerant R410A further aligns with global green manufacturing trends.

II. GICE (Nanjing) Technology Co., Ltd. Precision Water-cooled Chilled Water Units: Three Core Characteristics Define Industry Benchmarks

(I) Milli-Kelvin Level Temperature Control Accuracy: Reshaping Temperature Control Limits

Relying on the patent for "Ultra-high Precision Process Cooling Water System and its Constant Temperature Control Method," Precision Water-cooled Chilled Water Units 's outlet water temperature fluctuation can reach ±0.001℃ ensuring milli-Kelvin level temperature drift control during the lithography process in wafer manufacturing, effectively reducing chip defect rates. Furthermore, the unit possesses minute-level rapid temperature control capability, capable of quickly recovering to the set temperature even when facing equipment startup/shutdown or sudden load changes, meeting the high stability requirements for continuous production in semiconductor equipment.

(II) Full Life Cycle Stability: The "Stress Resistance Expert" in Complex Working Conditions

  1. Hardware Redundancy and Anti-Interference Design
    • Core components like compressors and water pumps adopt a dual-unit parallel redundant design ; in case of a single component failure, the backup module automatically switches in, ensuring 24-hour continuous operation;
    • The unit's base is equipped with shock-absorbing springs/rubber pads, and the electrical system uses shielded cables and anti-interference filtering devices, allowing stable operation in high-vibration, strong electromagnetic environments of industrial production lines.
  2. Intelligent Monitoring and Dynamic Adjustment
    • Through the PLC control system, parameters such as temperature, pressure, and flow are collected in real-time, forming a closed-loop data feedback, with automatic adjustment in case of abnormalities (e.g., adjusting expansion valve opening, increasing cooling water flow);
    • Inverter technology (compressor/fan frequency conversion) achieves dynamic matching of cooling capacity with load, maintaining a high COP value (partial load COP > 5.0) in the 20%~100% load range, preventing energy waste.
  3. Long-term Anti-attenuation and Safety Protection
    • The heat exchanger adopts a stainless steel nano-coating and water softening system, with a heat transfer efficiency decrease of <5% after 5 years of operation (compared to 10%~20% decrease for ordinary units).
    • Equipped with 6 safety devices including high-pressure protection and flow interruption protection, it supports wide temperature operation from -10℃ to 45℃ and adapts to ±10% power voltage fluctuations, ensuring system safety through anti-freezing protection and other mechanisms even under extreme conditions.

(III) Energy Efficiency & Flexible Customization: "Dual Optimization" of Performance and Adaptability

  • Energy-Saving Design : The permanent magnet synchronous variable frequency compressor improves energy efficiency by 30% compared to fixed-frequency units, and power consumption is as low as 5% of rated power in dynamic sleep mode.
  • Customization Capability : Provides single/dual channel cooling solutions, with cooling capacity covering 1.5kW~50kW (H series models), supports customization of size, interfaces (DN20~DN50) and multi-circuit control, capable of meeting the demands from small laboratory devices to industrial-scale production lines for Precision Water-cooled Chilled Water Units differentiated needs.

 

III. G-Test (Nanjing) Technology Co., Ltd. Precision Water-Cooled Chiller Units: Unlocking Application Value in Four Major Fields

(I) Semiconductor and Electronics Manufacturing: The "Temperature Guardian" of Precision Processes

  • Lithography / Etching Scenarios : For EUV lithography machines and plasma etchers Precision Water-cooled Chilled Water Units :, providing ±0.001℃ temperature control to ensure nano-scale pattern transfer accuracy.
  • Wafer Growth / Testing Scenarios : Controls the temperature stability of epitaxial furnaces and probe stations, preventing thermal deformation from interfering with chip performance testing.
  • Customer Cases : Has served companies such as BOE, Huawei, and China Electronics Panda, ensuring temperature reliability in panel manufacturing and chip packaging processes.

(II) Medical and Life Sciences: The "Research Assistant" for Precision Temperature Control

  • Magnetic Resonance Imaging (MRI) Scenarios : Provides stable cooling for superconducting magnets, by Precision Water-cooled Chilled Water Units preventing equipment shutdown due to liquid helium quench.
  • Cryo-Electron Microscopy (Cryo-EM) Scenarios : Controls sample stage temperature fluctuation to <±0.1℃, providing a stable environment for protein structure analysis.
  • Pharmaceutical Production Scenarios : Achieves ±0.5℃ temperature control in bioreactors and lyophilizers, ensuring the activity and quality of biological drugs such as vaccines and monoclonal antibodies.

(III) High-Precision Optics and Laser: The "Temperature Reference Source" for Optical Instruments

  • Astronomical Observation Scenarios : Provides ±0.02℃ constant temperature cooling for large telescope mirrors, reducing the impact of thermal deformation on observation data.
  • Laser Processing Scenarios : By Precision Water-cooled Chilled Water Units stabilizing the laser cavity temperature, ensuring laser power fluctuation <1%, and improving the consistency of precision welding and cutting.
  • Optical Coating Scenarios : Controls substrate temperature in vacuum coating machines to prevent transmittance deviation caused by film stress.

(IV) New Energy and Materials Research: The "Temperature Control Engine" for Frontier Exploration

  • Battery R&D Scenarios : Controls the temperature of the electrolyte temperature control box, optimizing the charge-discharge cycle life of lithium-ion batteries.
  • Material Synthesis Scenarios : Achieves ±0.1℃ temperature control in graphene preparation and nanoparticle synthesis, ensuring consistency of material composition and structure.
  • Coating Process Scenarios : Provides ±0.05℃ cooling water temperature control for lithium battery coating machine ovens, preventing uneven coating thickness from affecting battery performance.

IV. Technical Strength: Patent Matrix Building a Competitive Barrier

G-Test (Nanjing) Technology Co., Ltd. has developed around Precision Water-cooled Chilled Water Units accumulated 9 related invention patents, with core patents such as "Ultra-High Precision Process Cooling Water System and Its Constant Temperature Control Method" and "High Precision Temperature and Humidity Environmental Control System Device," covering the entire chain of hardware design, algorithm optimization, and system integration. Currently, the units have passed practical verification by industry benchmarks such as internationally renowned chip semiconductor institutions, internationally renowned communication institutions, and well-known domestic research institutes, becoming a technological leader in domestic precision temperature control equipment.
 
GICE (Nanjing) Technology Co., Ltd.'s Precision Water-cooled Chilled Water Units with millikelvin (mK) level temperature control accuracy, full-scenario adaptability, and green energy-saving design, has become an essential equipment in high-end manufacturing and scientific research fields. Its technological innovation not only solved the "bottleneck" problem in the domestic precision temperature control field but also helped industries such as semiconductors, medical, and new energy break through process limits through continuously iterating product performance. In the future, as the localization process accelerates, G-Test (Nanjing) Technology Co., Ltd. may, by virtue of Precision Water-cooled Chilled Water Units its leading advantages, occupy a more important position in the global precision temperature control market.

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