Energy-saving nursing agent of central air conditioning

Abstract

The invention belongs to the field of fine chemical engineering and in particular relates to an energy-saving nursing agent for cleaning, film-forming protection and corrosion prevention and scale inhibition of a chilled water system of a central air conditioning. The energy-saving nursing agent of the central air conditioning is prepared from the following components in percentage by weight: 15 percent to 21 percent of 1-hydroxyethylidene-1,1-diphosphonic acid, 0.1 percent to 0.2 percent of a penetrating agent, 3 percent to 5 percent of an amide type cosolvent, 1 percent to 3 percent of a cationic surfactant, 2 percent to 3 percent of 1H-benzotriazole, 0.4 percent to 1 percent of high-finesse graphite powder and the balance of water. The nursing liquid of the central air conditioning, provided by the invention, has the following advantages of stable properties, no toxin and odor, safety and reliability and simplicity and convenience for utilization.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to an energy-saving nursing agent for cleaning, membrane protection, anti-corrosion and scale-resistance of a central air-conditioning chilled water system. Background technique [0002] As the "lung" of modern buildings, central air conditioners have been widely installed in urban high-rise buildings, hotels, and commercial buildings. Cooling and heating effects. The circulating water system of the central air conditioner mainly includes the cooling water system and the chilled water system, among which the chilled water system directly affects the use effect of the air conditioner. [0003] Demineralized water is mostly used for central air-conditioning chilled water, and a small part is used for tap water. It circulates in a closed system. The water does not evaporate or concentrate. The content of calcium and magnesium ions is very low, and there is no supersaturation ...

AI Technical Summary

Problems solved by technology

The problems existing in the system are mainly metal corrosion of pipes and equipment, and then produce rust and mud. The thermal conductivity of rust is only a few hundredths of that of metal. Therefore, even a thin layer of rust will seriously restrict Heat exchange affects the cooling and heating effect of the air conditioner

In addition, corrosion products will increase the roughness of the metal surface, thereby promoting the deposition of scale and the attachment and reproduction of microorganisms, thereby clogging the pipeline

In order to control equipment and pipeline corrosion, prevent scale formation, inhibit microbial growth and reproduction, improve heat transfer efficiency, save energy, and prolong equipment service life, many patents and papers propose to use some phosphorus, molybdate or composite water treatment agents for central air conditioning. However, there are more or less deficiencies in the applicability, effect, cost, environmental protection, etc. of the agents for chilled water treatment