Various embodiments of a waste heat recovery and conversion system are disclosed. The system may include a modular heat exchanger whose energy source is provided by waste heat energy transporting fluids transferring their energy to a working fluid. The working fluid may be in a liquid state contained in a reservoir hydraulically connected to a high-pressure heat transfer chamber. The high-pressure heat transfer chamber may be configured to receive thermal energy utilized to convert the working fluid into a superheated vapor.

Various embodiments of a waste heat recovery and conversion system are disclosed. The system may include a modular heat exchanger whose energy source is provided by waste heat energy transporting fluids transferring their energy to a working fluid. The working fluid may be in a liquid state contained in a reservoir hydraulically connected to a high-pressure heat transfer chamber. The high-pressure heat transfer chamber may be configured to receive thermal energy utilized to convert the working fluid into a superheated vapor.

The present invention discloses a heat exchange system and a nuclear reactor system. The heat exchange system includes: a heating device; a heat consuming device connected with the heating device through a pipe to form a loop; and a steam, which is in a wet steam state before being supplied to a heat source, and is supplied to the heat consuming device after becoming dry steam or superheated steam by exchanging heat with the heating device. Heat exchange efficiency and security of the nuclear reactor system are improved by adopting steam as a heat exchange medium.

A tube expansion method of mounting a drain tube as tube member by insertion and expansion to a through hole in which opening portions at both ends are obliquely formed, the method including: inserting the drain tube to the through hole so that the end portions protrude from the opening portions at both ends of the through hole; inserting a tube expander into the drain tube to expand the drain tube up to a predetermined inner diameter while moving the tube expander to the other end portion from one end portion of the drain tube; cutting each end portion of the tube member protruding from each opening portion of the through hole along an oblique shape of each opening portion; and welding the cut end portion of the drain tube and the opening portion of the through hole.

Disclosed is an energy storage and steam generation system, including an electrode steam boiler. One side of the electrode steam boiler is connected with a boiler deaerator through a pipeline. A pipeline A is arranged at the top of the electrode steam boiler. The pipeline A is connected with a steam superheater, and an outlet of the steam superheater is provided with an external steam supply outlet pipeline. A molten salt steam generation bypass pipeline and a pipeline B are arranged on the steam superheater. One end of the molten salt steam generation bypass pipeline is connected to the steam superheater. A low-temperature molten salt storage tank is connected to the pipeline B, and a high-temperature molten salt storage tank is connected to the low-temperature molten salt storage tank through a pipeline. The other end of the molten salt steam generation bypass pipeline is connected to the high-temperature molten salt storage tank. Meanwhile, a generation method is further disclosed. According to the present disclosure, electric energy is converted into heat energy to be stored in the molten salt, and then energy is released for external steam supply by means of a method for generating steam through heating by coupling the molten salt, thereby realizing large-scale heat storage, prolonging the life of a heating system, and improving the reliability.

A hybrid geothermal power system is discussed. The system includes a geothermal system including power plant (101) and pumping station (102) and a nuclear plant (103). Pumping station (102) is used to inject fluid from reservoir (104) through an injection well (105) into the bedrock (106) (also referred to as the hot dry rock HDR zone) and extracted via a secondary bore (extraction well) usually coupled to the power plant (101). In the present example however the injection well is linked to the extraction well (107). As fluid is injected into the bedrock a drop in temperature occurs due to heat transfer to the fluid. Nuclear plant (103) is utilized to combat this drop, the plant (103) has the fissionable components (1091, 1092, 1093) of the reactor positioned within bores (1081, 1082, 1083) within the HDR zone.

A tube and shell steam generator in which a series of rods having a diameter substantially equal to that of the heat exchange tubing in the tube bundle are placed on either side of the tube lane to buffer the flow in the tube lane from the heat exchange tubes to attenuate turbulent forces on the first several rows of heat exchange tubes adjacent to the tube lane.

An energy storage power plant for harvesting electric energy, and suitable for converting electric energy into thermal energy is provided. The thermal energy can be temporarily stored in at least two thermal stores until demanded and retrieved to increase the energy content of water in a water circuit upon demand. The power plant has the at least two thermal stores, each has at least one converting device that allows electric energy to be directly or indirectly converted into thermal energy, the thermal stores being thermally chargeable by temporarily storing thermal energy, wherein one thermal store is for storing sensible heat and one thermal store is for storing latent heat; and at least one energy generating unit operated using the water in the water circuit, the energy content of the water having been increased by the temporary storage of thermal energy, in order to generate electric energy when operated.

A solid electric thermal storage superheated steam output system is provided. Through a high-temperature air duct, a superheated steam heat exchanger, a saturated steam heat exchanger and a water preheating heat exchanger, heat exchange is performed under the drive of a variable-frequency fan to finally generate superheated steam for use of a heat consumer. The water preheating heat exchanger is connected to a preheating steam tank, heat generated after the superheated steam heat exchanger and the saturated steam heat exchanger exchange heat is used to generate low-temperature steam for thermal deoxygenation of a deaerator, while water flows into a deaerator water tank through an overflow pipe. A superheated steam unit is a structural combination including a steam drum as a core, sets of superheated steam heat exchangers, saturated steam heat exchangers, water preheating heat exchangers and corresponding accessories. An overall combined superheated steam system includes multiple superheated steam units.

An energy supply system for salt lake lithium extraction comprises: a lithium extraction unit, a water source supply unit, a heating unit, a heat exchange unit, a steam supply unit, and a lithium extraction plant. The water source supply unit comprises a water storage tank and a first solid heat storage assembly. A second solid heat storage assembly of the heating unit is connected to the heat exchange unit, and is connected to the lithium extraction plant by means of a building heating water supply pipeline. The lithium extraction unit comprises an adsorption assembly, a membrane assembly, an evaporation assembly and a lithium precipitation assembly, and the water storage tank is connected to the adsorption assembly. A third solid heat storage assembly of the steam supply unit is connected to the evaporation assembly and the lithium precipitation assembly. The lithium extraction plant is connected to the heat exchange unit.