2results about How to "Increase the ambient temperature" patented technology

The application provides an industrial waste heat recovery and utilization system with high efficiency and energy saving, comprising a boiler, a periodic blowdown tank connected with the boiler, a periodic blowdown expander communicated with the periodic blowdown tank through a blowdown pipe, wherein the blowdown pipe is provided with a first primary valve and a first secondary valve, a steam drum, a continuous blowdown tank communicated with the steam drum through desalted water branch pipes arranged on the left and right sides of the steam drum, a continuous blowdown expander communicated with the continuous blowdown tank through a desalted water main pipe, and a heat exchange station water supply tank communicated with the continuous blowdown expander through a heat exchange station branch pipe. The periodic blowdown expander and the continuous blowdown expander are arranged to receive waste heat water from periodic blowdown of the boiler and desalted water from continuous blowdown of the steam drum respectively, and the flow of the waste heat water and the desalted water is controlled through valves, so that more reasonable recycling and discharge can be realized, water consumption and wastewater discharge can be effectively reduced, the utilization efficiency of energy is improved, energy waste is reduced, the operation cost of enterprises is reduced, and the goal of energy saving and emission reduction is achieved.

This application discloses a heat pump system and its control method, belonging to the field of electric vehicle thermal management technology. The method includes: controlling a solenoid valve; controlling an electronic expansion valve; controlling a five-way valve; and, based on the control status of the solenoid valve, electronic expansion valve, and five-way valve, causing the heat pump system to execute a corresponding refrigerant circulation mode. In the embodiments of this application, by utilizing same-side evaporation, the operating ambient temperature of the heat pump can be reduced to as low as -30°C, achieving a wide temperature range heat pump air conditioning, and eliminating the need for auxiliary PTC in the passenger compartment and battery water heater. Furthermore, through the recovery of waste heat from the battery and motor, the energy-saving effect is improved by 20% compared to ordinary heat pumps.