CN-122012035-A - Data center cooling liquid

Abstract

The invention discloses a data center cooling liquid which comprises, by mass, 0.03-0.06% of a corrosion inhibitor, 0.01-0.05% of a bacteriostatic agent, 25-30% of an antifreezing agent, 0.01-0.02% of an organic base, 0.0001-0.001% of a defoaming agent, 0.0001-0.001% of a pigment and the balance of water. The invention obviously enhances the corrosion inhibition performance of the cooling liquid while efficiently inhibiting bacteria by the synergistic effect of the three-component compounded nonionic corrosion inhibitor and the bacteriostatic agent, has good compatibility with metal materials and nonmetallic materials, low conductivity and excellent reserve alkalinity and hard water resistance.

Inventors

• LIU BAIWAN
• SHI YINGFEI
• WANG JUAN
• LIU WEIMIN
• DAI HUI
• YANG CAO
• SHI JUNFENG

Assignees

• 江苏龙蟠新材料科技有限公司
• 江苏龙蟠科技集团股份有限公司

Dates

Publication Date

20260512

Application Date

20251224

Claims (10)

1. 1. The data center cooling liquid is characterized by comprising, by mass, 0.03-0.06% of corrosion inhibitor, 0.01-0.05% of bacteriostatic agent, 25-30% of antifreezing agent, 0.01-0.02% of organic base, 0.0001-0.001% of defoaming agent, 0.0001-0.001% of pigment and the balance of water.
2. 2. The data center cooling liquid according to claim 1, wherein the corrosion inhibitor is compounded by three components of a double-silane coupling agent, triazole and long-chain dibasic acid, the mass percentage of the double-silane coupling agent in the cooling liquid is 0.010-0.020wt%, the mass percentage of the triazole in the cooling liquid is 0.015-0.030 wt%, and the mass percentage of the long-chain dibasic acid in the cooling liquid is 0.005-0.010wt%.
3. 3. The data center coolant as in claim 2, wherein the bis-silane coupling agent comprises at least one of 1, 2-bis-trimethoxysilylethane and 1, 2-bis-triethoxysilylethane.
4. 4. The data center coolant as in claim 2, wherein the triazole comprises at least one of benzotriazole and methylbenzotriazole.
5. 5. The data center coolant of claim 2, wherein the long chain dibasic acid is at least one of HOOC- (CH 2 ) n -COOH (n=10-18).
6. 6. The data center coolant of claim 1, wherein the bacteriostat is a natural essential oil.
7. 7. The data center coolant of claim 6, wherein the natural essential oil comprises at least one of lavender essential oil, cajeput essential oil, and clove essential oil.
8. 8. The data center coolant of claim 1, wherein the antifreeze comprises at least one of ethylene glycol and 1, 2-propylene glycol.
9. 9. The data center coolant as in claim 1, wherein the organic base comprises at least one of monoethanolamine, diethanolamine, and triethanolamine.
10. 10. The data center coolant of claim 1, wherein the defoamer is a polyether defoamer and the pigment is fluorescent yellow.

Description

Data center cooling liquid Technical Field The invention relates to a cooling liquid, in particular to a data center cooling liquid. Background With the advent of artificial intelligence and the big data age, data centers continue to climb in power consumption, and the huge heat they generate constitutes a serious challenge for heat dissipation from data centers. The liquid cooling technology is rapidly rising as a high-efficiency energy-saving heat dissipation solution, and has a wide application prospect in a high-density computing environment. Cold plate liquid cooling and immersion liquid cooling are two liquid cooling technology paths of the current mainstream. The principle of the cold plate type liquid cooling is that high heating elements such as CPU and GPU in a server are closely attached to a liquid cooling plate (usually a closed cavity formed by heat conducting metals such as copper and aluminum), and heat is indirectly taken away by cooling liquid flowing inside. The immersion liquid cooling is direct contact cooling, the whole or main heating component of the server is immersed in the insulating cooling liquid, and the heat of all elements is directly absorbed and taken away by means of the high heat conductivity of the liquid and possible phase change process. In contrast, the cold plate type liquid cooling is a scheme which is widely applied and has high maturity at present because the change amount of the cold plate type liquid cooling to the server chip assembly and the accessory parts is small. At present, water or glycol aqueous solution is often adopted as cooling liquid in a cold plate type liquid cooling system, and the cooling liquid has high specific heat capacity, but has poor corrosion inhibition performance on liquid cooling plate materials such as copper, aluminum and the like, so that metal corrosion is easily caused by long-term operation, and the maintenance and replacement cost is increased. In addition, if no bactericide is added into the cooling liquid, bacteria are easy to grow in the pipeline, and the heat dissipation efficiency of the system is affected. Disclosure of Invention The invention aims to provide the cold plate type data center cooling liquid which is excellent in corrosion inhibition performance and can be used for efficiently sterilizing. The technical scheme is that the data center cooling liquid comprises, by mass, 0.03-0.06% of corrosion inhibitor, 0.01-0.05% of bacteriostatic agent, 25-30% of antifreezing agent, 0.01-0.02% of organic base, 0.0001-0.001% of defoaming agent, 0.0001-0.001% of pigment and the balance of water. The corrosion inhibitor is formed by compounding three components of a double-silane coupling agent, triazole and long-chain dibasic acid, wherein the mass percentage of the double-silane coupling agent in the cooling liquid is 0.010-0.020wt%, the mass percentage of the triazole in the cooling liquid is 0.015-0.030 wt%, and the mass percentage of the long-chain dibasic acid in the cooling liquid is 0.005-0.010wt%. Preferably, the corrosion inhibitor is compounded by three components of a double-silane coupling agent, triazole and long-chain dibasic acid according to the mass ratio of 2:3:1. Further, the bis-silane coupling agent comprises at least one of 1, 2-bis-trimethoxy-silyl ethane (BTMSE) and 1, 2-bis-triethoxy-silyl ethane (BTSE), and is used for forming a compact hydrophobic protective film layer on the surface of the metal to delay metal corrosion. Further, the triazole comprises at least one of benzotriazole and methylbenzotriazole, nitrogen atoms in molecules of the triazole can be combined with-SiOH generated by hydrolysis of a bis-silane coupling agent, coordination bonds are formed on the surface of metal, and the adsorption strength of the protective film layer and the metal is enhanced. Further, the long-chain dibasic acid is HOOC- (CH 2) n-COOH, n=10-18, and the-OH in the molecule can be adsorbed on the surface of the metal, and meanwhile, the long chain can enhance the hydrophobic property of the protective film. The antibacterial agent is natural essential oil. Further, the natural essential oil comprises at least one of lavender essential oil, cajeput essential oil and clove essential oil, and the molecules of the composition are rich in oxygen atoms and unsaturated bonds, so that the composition can be adsorbed on the surface of metal to form an insoluble complex hydrophobic film layer while effective bacteriostasis is realized, and the insoluble complex hydrophobic film layer is compatible with long-chain dibasic acid, so that the corrosion inhibition performance of the cooling liquid is further enhanced. The antifreezing agent comprises at least one of ethylene glycol and 1, 2-propylene glycol, preferably, the ethylene glycol is polyester grade ethylene glycol meeting the GB/T4649-2018 standard, and the 1, 2-propylene glycol meets the high-grade product requirements of the HG/T5392-2018 standard. The organic ba