Appraisal Background
In central air conditioning units, cooling towers are essential equipment in large central air conditioners. The poor cooling effect of the cooling tower may be caused by many reasons: one situation may be uneven distribution of water inside the cooling tower; one situation may be insufficient cooling water in the cooling tower; another situation may be some problems with the cooling tower.
Zhongke Testing can provide quality appraisal services for mechanical equipment, carry out appraisal work on whether there are quality problems related to cooling towers, issue professional and reliable inspection reports, and assist courts and enterprises in resolving product quality disputes.
Basis for appraisal
GB/T 7190.2-2018 Mechanical ventilation cooling tower Part 2: Large open cooling tower
HG/T 3132-2007 L-shaped cooling tower fan
GB/T 7190.3-2019 Mechanical ventilation cooling tower Part 3: Closed cooling tower
TB/T 3313-2013 Cooling tower for electric locomotives
JB/T 11530-2013 Closed cooling tower for refrigeration
GB/T 7190.1-2018 Mechanical ventilation cooling tower Part 1: Small and medium-sized open cooling tower
JB/T 9099-2014 Cooling tower axial flow fan
Authentication case
A power company purchased two sets of cooling tower devices from a wind machinery company, and the two parties signed an agreement stipulating the technical quality and safety of the cooling towers. However, after delivery, the power company discovered that the cooling tower fan was not working properly, contrary to what was required in the technical contract. It not only wastes time, but also delays the operation of the power company and causes economic losses. So the power company took the machinery company to court. The court entrusted our company to conduct technical appraisal to find out the cause of the quality problems of the cooling tower. The
expert team evaluated the operating environment and quality of the cooling tower and found that the equipment was placed in a highly corrosive environment, and the sealing strips quickly failed in this environment. Because the tightness was not enough, corrosive media entered the inside of the reducer, causing parts to rust, resulting in bearing jamming and the fan failing to operate normally. Therefore, to sum up, there are certain quality problems in this batch of cooling towers.
