High pressure is too low, low pressure is too high! The lower the low pressure of the refrigeration unit, the lower the evaporation temperature, which can lower the storage temperature. If the expansion valve is lowered a little, there will be too much liquid, but with the increase of evaporation pressure and evaporation temperature, the storage temperature will definitely not be lowered. The two-stage compression can be pulled down for the same reason. Refrigerant generally evaporates under negative pressure!

Zhengzhou Tian Yuan Refrigeration Technology Co., Ltd. is a professional refrigeration enterprise engaged in the installation and design of refrigeration equipment such as cold storage, cold storage, quick-freezing storage, low-temperature box of quick-freezing machine, medical cold storage, experimental constant temperature room, ultra-low temperature experimental cold storage, ice-making project, salt pond, seafood machine and the development and research of related refrigeration products.

At the beginning of its establishment, the company decided to put people first and provide customers with excellent products and quality services. While continuously absorbing advanced management experience and scientific research achievements of domestic and foreign enterprises, it has also strengthened joint cooperation with universities and scientific research units. Committed to the development of new products and the gradual improvement of enterprise management, but also trained a construction and management team with rich practical experience and perfect service system. After years of unremitting efforts, the cold storage, cold storage, freezing, quick-frozen cold storage and other equipment produced by Zhengzhou Tian Yuan Refrigeration Equipment Co., Ltd. have been affirmed and praised by customers and won a good reputation in the industry!

The main products are cold storage, cold storage, fruit cold storage, medicine cold storage, seed cold storage, royal jelly cold storage, edible fungi cold storage, artificial environment room, frozen quick-freezing, low-temperature box, constant temperature laboratory, ultra-low temperature cold storage, laboratory cold storage, vaccine special cold storage and other refrigeration equipment projects, acting as an agent to distribute refrigeration compressors and refrigeration accessories of well-known brands at home and abroad; Main business: cold storage engineering design and installation, cold storage and refrigeration equipment supporting sales. Professional design and installation: fresh-keeping warehouse, cold storage, drug cold storage, seed cold storage, fruit cold storage, medical cold storage, quick-freezing warehouse, quick-freezing tunnel, supermarket cold storage project, and undertake the maintenance and transformation of large, medium and small cold storage and refrigeration equipment.

Over the years, we have established good cooperative relations with frozen food enterprises, pharmaceutical enterprises, meat processing enterprises, large catering enterprises, large entertainment places, fruit production enterprises and distribution units, agricultural and sideline products production and distribution units, agricultural and sideline products research units, tea production and preservation units and many other units, providing high-quality products and excellent services, which have been unanimously recognized and trusted by customers.