At present, a large number of waste heat and pressure resources in the industrial field are directly discharged, which not only causes the waste of energy but also causes damage to the environment on which human beings depend.

In this context, Kaishan's screw expansion power generation technology came into being, providing a complete set of solutions for enterprises to use waste heat and pressure resources. Kaishan screw expansion generator set includes direct expansion generator set using residual pressure and organic Rankine cycle (ORC) expansion generator set using residual heat. According to the customer's heat source situation, Kaishan provides single-stage or cascade direct expansion generator set, single-stage or cascade ORC expansion generator set, direct expansion and ORC cascade generator set and other independent research and development technology of high efficiency cycle, the waste heat and pressure energy utilization to the extreme, to provide customers with greater benefits.

The screw expander is a volumetric expander. The commonly referred to as screw expander refers to the twin screw expander, and the Kaishan screw expander is specially developed and optimized for the expansion of gas. It is mainly composed of a pair of screw rotors and a casing that mesh with each other. The rotor and the rotor, the rotor and the casing are sealed with a gap to form a working cavity with a continuously variable volume. The gaseous working fluid containing heat enters the working cavity and expands adiabatically. Drive the rotor to rotate and perform work. While expanding to perform work, the pressure and temperature of the working fluid are reduced to realize thermal power conversion. The inlet air of screw expander can be saturated steam or even steam with liquid; the relative movement between the screws can limit fouling, and the fouling can also reduce the gap and improve efficiency; the screw expander has a wide range of variable working conditions, even at low load There will still be high isentropic efficiency.

At present, the screw expansion generator set of Kaishan has been widely used in the fields of waste heat power generation, industrial residual pressure power generation, geothermal power generation and bioenergy power generation in the iron and steel industry. At present, the company has completed more than 90 screw expansion power generation projects. The projects are mainly distributed in steel, petrochemical, plastic, chemical fiber, geothermal, biomass and other industries. Kaishan's high-end screw expansion power generation system is operating efficiently and stably.

In particular, Kaishan's continuous investment, construction and operation of overseas geothermal power stations, Kaishan has been recognized by the global geothermal power generation industry in terms of global geothermal power generation equipment and geothermal power station operation, and has become a major supplier of global geothermal power generation equipment and a leader in the operation and management of global geothermal power stations.

Kaishan expander power generation equipment business, including: