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Low silicon content coolant liquid applicable to aluminum radiator of heavy-duty commercial vehicle engine

A technology for commercial vehicles and engines, which is applied to the cooling of engines, engine components, machines/engines, etc. It can solve the problem that the coolant is not suitable for heavy vehicles, etc., and achieve the effect of improving heat exchange and cooling performance

Active Publication Date: 2009-12-16
CHANGCHUN YONGCHANG PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The invention provides a low-silicon-content coolant suitable for the aluminum water tank of heavy-duty commercial vehicle engines to solve the problem that the current coolant is not suitable for heavy-duty vehicles equipped with aluminum water tanks

Method used

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  • Low silicon content coolant liquid applicable to aluminum radiator of heavy-duty commercial vehicle engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Polyester grade ethylene glycol 36kg, mannitol 1.0kg, benzoic acid 0.3kg, adipic acid 0.7kg, tolyl benzotriazole (TTA) 0.1kg, p-nitrobenzoic acid 0.05kg, polyether (6100) 0.001kg, potassium phosphate 0.3kg, sodium nitrite 0.2kg, sodium nitrate 0.25kg, borax 0.5kg, sodium silicate 0.007kg, water-soluble fluorescent red 0.002kg, sodium hydroxide 0.45kg, distilled water 60.14kg.

[0032] Preparation method: (1) take by weighing 15% ethylene glycol of formula quantity and 15% distilled water of formula quantity and add the mannitol of formula quantity, benzoic acid, adipic acid, tolyl benzotriazole (TTA), p- -Nitrobenzoic acid, polyether (6100); heated to 50°C; stirred for 5 minutes until dissolved; (2) adding potassium phosphate, sodium nitrite, sodium nitrate, and borax in distilled water weighing 30% of the formula quantity , sodium silicate, heated to 50°C; stirred for 5 minutes until dissolved; (3) mixed the semi-finished raw materials of steps (1) and (2), and stirred...

Embodiment 2

[0034] Polyester grade ethylene glycol 44kg, mannitol 1.25kg, benzoic acid 0.5kg, adipic acid 0.8kg, tolyl benzotriazole (TTA) 0.15kg, p-nitrobenzoic acid 0.075kg, polyether (6100) 0.002kg, potassium phosphate 0.5kg, sodium nitrite 0.22kg, sodium nitrate 0.275kg, borax 0.75kg, sodium silicate 0.013kg, s-triazine fungicide 0.005kg, mercaptobenzothiazole sodium (MBT) 0.025kg, water soluble Fluorescent blue 0.011kg, sodium hydroxide 0.56kg, distilled water 50.864kg.

[0035] Preparation:

[0036] (1) take by weighing 17% ethylene glycol of formula quantity and 18% distilled water of formula quantity and add the mannitol of formula quantity, benzoic acid, adipic acid, tolyl benzotriazole (TTA), p-nitro Benzoic acid, polyether (6100); heated to 60°C; stirred for 7.5min until dissolved;

[0037] (2) Potassium phosphate, sodium nitrite, sodium nitrate, borax, sodium silicate, s-triazine bactericide, sodium mercaptobenzothiazole (MBT) of formula quantity are added in the distilled w...

Embodiment 3

[0042] Polyester grade ethylene glycol 52kg, mannitol 1.5kg, benzoic acid 0.7kg, adipic acid 0.9kg, tolyl benzotriazole (TTA) 0.2kg, p-nitrobenzoic acid 0.1kg, polyether (6100) 0.004kg, potassium phosphate 0.7kg, sodium nitrite 0.25kg, sodium nitrate 0.3kg, borax 1.0kg, sodium silicate 0.02kg, s-triazine fungicide 0.01kg, mercaptobenzothiazole sodium (MBT) 0.05kg, water soluble Fluorescent yellow 0.02kg, sodium hydroxide 0.68kg, distilled water 41.566kg.

[0043] Preparation:

[0044] (1) take by weighing 20% ​​ethylene glycol of formula quantity and 20% distilled water of formula quantity and add the mannitol of formula quantity, benzoic acid, adipic acid, tolyl benzotriazole (TTA), p-nitro Benzoic acid, polyether (6100); heated to 70°C; stirred for 10 minutes until dissolved;

[0045] (2) Potassium phosphate, sodium nitrite, sodium nitrate, borax, sodium silicate, s-triazine bactericide, sodium mercaptobenzothiazole (MBT) of formula quantity are added in the distilled wate...

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Abstract

The invention relates to low silicon content coolant liquid applicable to an aluminum radiator of a heavy-duty commercial vehicle engine, and belongs to coolant liquid. The coolant liquid comprises the following raw materials in portion by weight: 36 to 52 portions of terylene grade glycol, 1.0 to 1.5 portions of mannite, 0.3 to 0.7 portion of phenylformic acid, 0.7 to 0.9 portion of adipate, 0.1 to 0.2 portion of methylbenzotriazole, 0.05 to 0.1 portion of p-nitrobenzoic acid, 0.001 to 0.004 portion of polyether, 0.3 to 0.7 portion of potassium phosphate, 0.2 to 0.25 portion of sodium nitrite, 0.25 to 0.3 portion of sodium nitrate, 0.5 to 1.0 portion of borax, 0.007 to 0.02 portion of sodium silicate, 0.45 to 0.68 portion of sodium hydroxide, and distilled water for fixing the volume to 100 portions. The coolant liquid contributes to improvement of heat exchange and cooling performance of a water jacket of the engine, is more adapted to an aluminum water tank radiator, is adapted to sedans and light vehicles, and is more adapted to heavy-duty commercial vehicles.

Description

technical field [0001] The invention relates to a low-silicon-content coolant suitable for an aluminum water tank of a heavy-duty commercial vehicle engine, and is applied in the automobile engine industry. Background technique [0002] About 30% of the total energy burned by fuel in a car engine is taken away by the engine coolant. If EGR is adopted as a technical means in the future National 4 or National 5 standards, coolant is required to cool the intake air of EGR, so the total heat exchange of coolant may be larger, the temperature of coolant will be higher, and more problems will be faced. problems and technical challenges. [0003] An engine coolant with good performance requires effective cooling of the engine water jacket to prevent the engine from overheating and scuffing; it is required to provide antifreeze performance at low temperatures to prevent the engine from freezing and cracking; it is required to be able to cool the engine water jacket and rubber tubes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20F01P11/00
Inventor 张凤霞
Owner CHANGCHUN YONGCHANG PETROCHEM
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