A constant temperature warehouse, also known as a high-temperature cold storage, uses insulation equipment as the maintenance structure of the warehouse, and then uses refrigeration equipment, cold storage humidity control equipment, and PLC temperature control equipment to control the temperature and humidity of the warehouse within a certain range.

Due to the large temperature difference between the constant temperature warehouse and the outside world, the construction of the insulation system for the constant temperature warehouse directly affects the future operating costs. At present, the best insulation material for thermal insulation is polyurethane cold storage insulation board, but due to its high price, polyurethane cold storage insulation board has not been widely used in the construction of constant temperature cold storage. Based on the comprehensive cost and future operating expenses, polystyrene cold storage insulation boards are currently widely used as insulation materials for constant temperature warehouses.

Considering the future operation and management costs as well as the high evaporation temperature of the constant temperature warehouse, the valley wheel vortex cold storage compressor produced by Emerson Group in the United States is generally used as the refrigeration equipment for the constant temperature warehouse.