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Phone: +86-534-5012407
Mobile phone: +86-188-6602-0062
Email: sddljnhb@163.com
Website: http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
A packaged air-conditioning unit is composed of various modular air-handling components that can be flexibly configured from different functional sections according to specific application scenarios and treatment requirements, enabling comprehensive, all‑round air conditioning to meet the demands of diverse environments for temperature, humidity, cleanliness, and fresh‑air supply.
Direct-expansion purification unit
Our company’s direct-expansion fresh-air handling unit is an air-handling device that integrates fresh-air treatment with temperature and humidity control.
Ceiling-mounted air conditioning unit
Our company’s ceiling‑mounted air handling units are energy‑efficient ventilation systems that enable bidirectional indoor–outdoor air exchange, heat recovery, and air purification, making them suitable for a wide range of building spaces.
Ethylene Glycol Heat Recovery Tank
Our company’s ethylene glycol heat recovery unit is an indirect air‑energy recovery device that uses an ethylene glycol solution as the heat‑transfer medium. A circulation pump drives the heat‑transfer fluid between the fresh‑air heat exchanger and the exhaust‑air heat exchanger, leveraging the temperature difference between indoor and outdoor exhaust and fresh air to recover and reuse exhaust‑air energy. This reduces the load on the HVAC system and lowers operating energy consumption. The equipment operates on a sensible‑heat recovery principle: supply and exhaust air remain completely isolated during heat recovery, with no air exchange, thereby eliminating any risk of cross‑contamination between fresh and exhaust air. During seasons with significant indoor–outdoor temperature differentials, the ethylene glycol heat recovery system captures the thermal energy contained in the exhaust air and transfers it to the incoming fresh air. In summer, this lowers the temperature of the fresh air, reducing cooling energy consumption; in winter, it raises the fresh‑air temperature, cutting heating energy use. Additionally, in extremely cold conditions, the system can preheat the fresh air, effectively preventing freeze‑induced rupture of the HVAC heat‑exchanger coils. Under normal operating conditions, the heat recovery efficiency of the ethylene glycol system typically ranges from 45% to 65%, with summer recovery efficiencies exceeding 65% and winter efficiencies surpassing 70%.
Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
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