41 results about "Work recovery" patented technology

The invention discloses a vapor compression refrigeration cycle expansion work recovery system. The system comprises a main compressor (i), a condenser (ii), a gas and liquid separator (iii), a gas expander (iv), an expansion valve (v), an evaporator (vi) and an auxiliary compressor (vii), wherein the condenser (ii) is connected with the main compressor (i) and cools gaseous working mediums from the main compressor into a gas and liquid two-phase mixture; the gas and liquid separator (iii) is connected with the condenser and performs phase separation on the gas and liquid two-phase mixture from the condenser; the gas expander (iv) is connected with a gas phase working medium outlet of the gas and liquid separator; the expansion valve (v) is connected with a liquid phase working medium outlet of the gas and liquid separator; the evaporator (vi) is connected with the expansion valve; the auxiliary compressor (vii) is connected with the evaporator; a gaseous working medium outlet of the gas expander and a gaseous working medium outlet of the auxiliary compressor are jointly communicated with a gaseous working medium inlet of the main compressor through a pipeline. Due to stage compression of the system, the compression ratio in each compression process is decreased, the efficiency of the compressors is guaranteed, and the circulation COP is improved.

The invention relates to a system for capturing and preserving carbon dioxide with a low energy. Medium-high temperature flue gas generated by a coal-fired power plant is introduced into a heat recovery heat exchanger to release high-temperature waste heat and become low-temperature flue gas, the low-temperature flue gas is subjected to desulfurization and denitrification treatment, and then enters a compressor unit, the obtained compressed flue gas is cooled by indirect cooling heat regenerators, and then enters a gas-liquid separator to separate liquid carbon dioxide in the flue gas, carbondioxide removed high-pressure gas sequentially enters the cold sides of all-stage indirect-cooling heat regenerators and expansion units to do work, the gas obtained after the expansion work undergoesheat recovery by the heat recovery heat exchanger to reach a discharge temperature, and the obtained gas is conveyed into a chimney, and then is discharged to atmosphere. The system combines flue gascompression with expansion work recovery and the waste heat recovery of the heat regenerator, so the power is maximally saved; the system is combined with an energy storage and heat storage system toachieve peak regulation of the power plant, so the initial investment cost per unit is reduced; and the system also provides the cold source needed by low-temperature removal of carbon dioxide in order to reduce the power consumption, so the efficiency is increased.

The invention relates to a low-temperature liquid storage tank cover subsystem and a low-temperature liquid storage tank, wherein the cover subsystem arranged on the low-temperature liquid storage tank includes a storage tank cover and a pulse tube refrigerator; the pulse tube refrigerator is arranged on the storage tank cover and includes a low-temperature part and a room-temperature part; the low-temperature part includes a cooler, a heat regenerator, a cold energy heat exchanger and a pulse tube which are connected in order; the cooler and the pulse tube are connected with the room-temperature part; the room-temperature part compresses gas to generate a pressure wave, the gas is expanded at the bottom of the pulse tube for refrigeration, the expansion work is recovered by an expansion work recovery device of the room-temperature part, steam is condensed into a liquid on the cold energy heat exchanger, and the liquid flows back to the low-temperature liquid storage tank. Compared with the prior art, the pulse tube refrigerator is mounted in the low-temperature liquid storage tank cover subsystem and is equipped with the expansion work recovery device, and the efficiency is improved, so that recondensed evaporation gas is profitable, and the cover subsystem can be applied in the widely-used low-temperature liquid storage tank.

The invention discloses a two-stage ejection one-machine-and-two-temperature refrigeration system for expansion work recovery. According to the Two-stage ejection one-machine-and-two-temperature refrigeration system for expansion work recovery, a refrigeration compressor outlet and a condenser inlet are connected, one path of a condenser outlet is connected with a two-stage jetting and ejection device main fluid inlet, and the other path of the condenser outlet is connected with a heat regenerator high-pressure fluid inlet. A heat regenerator high-pressure fluid outlet is connected with a first expansion machine inlet, and a first expansion machine outlet is connected with a first evaporator inlet. A two-stage jetting and ejection device diffusion section outlet is connected with a gas-liquid separator mixed fluid inlet, and a gas-liquid separator gas outlet is connected with a heat regenerator low-temperature fluid inlet. A heat regenerator low-temperature fluid outlet is connected with a refrigeration compressor inlet, and a gas-liquid separator liquid outlet is connected with a second expansion machine inlet. A second expansion machine outlet is connected with a second evaporator inlet, and outlets of a first evaporator and a second evaporator are connected with first and second ejection fluid inlets of a two-stage jetting and ejection device correspondingly. The property ofthe refrigeration system can be improved.

The invention discloses an electric vehicle heat pump type air conditioning system with an ejector. A first four-way reversing valve and a second four-way reversing valve are separately arranged in the system as a refrigerant flow path switching valve group, and the ejector with a double-loop form is used for recovering expansion work in the throttling process, and the operation of the system in different modes of cooling, heating and defrosting is achieved. The electric vehicle heat pump type air conditioning system with the ejector adopts the ejector to realize the expansion work recovery inthe throttling process, and simultaneously increases the suction pressure of a compressor, thereby improving the refrigeration and heating capacity of the system as well as the refrigeration and heating efficiency; and the electric vehicle heat pump type air conditioning system with the ejector especially solves the problem of too low suction pressure of the operation of a heat pump under the lowtemperature working condition, and increases cycle economy.

The invention relates to a sterling-pulse tube mixed cold finger adopting column spring phase modulation, which comprises an expansion gas cylinder and a pulse tube shell. The expansion gas cylinder comprises an expansion gas cylinder body, a hot side gas distribution seat, a cold cap, and a connecting pipe and a transition pipe arranged on the expansion gas cylinder body and communicating with a hot side cavity. A mechanical phase modulation device coaxial to the pulse tube shell is embedded into the hot side gas distribution seat, and comprises a spring fixing seat arranged at the outer end part of the hot side gas distribution seat, a hot side spring seat arranged at the inner end part of the hot side gas distribution seat and in clearance fit to the hot side gas distribution seat, and a cylindrical spring connected between the spring fixing seat and the hot side spring seat. According to the sterling-pulse tube mixed cold finger adopting column spring phase modulation provided by the invention, the mechanical phase modulation device is adopted to replace a traditional hole-gas reservoir, an inertia tube-gas reservoir and other gas phase modulation ways in a pulse tube cooler, the phase modulation of the cooler can be realized through adjusting spring parameters, effective work recovery is realized, and the efficiency of the cooler can be effectively improved in terms of theory and practical application.

A gas turbine engine includes a primary flowpath fluidly connecting a compressor section, a combustor section, and a turbine section. A heat exchanger includes an first inlet connected to a high pressure compressor bleed, a first outlet connected to a high pressure turbine inlet. The heat exchanger further includes a second inlet fluidly connected to a supercharged CO2 (sCO2) work recovery cycle and a second outlet connected to the sCO2 work recovery cycle. The sCO2 work recovery cycle is an overexpanded, recuperated work recovery cycle.

In a golf ball having a core, a cover of at least one layer and a paint film layer formed on a surface of the cover, the paint film layer has an elastic work recovery of at least 60%, the cover layer in contact with the paint film layer has a material hardness on the Shore D scale of at least 55 and, letting M be the elastic work recovery (%) of the paint film layer and N be the material hardness (Shore D hardness) of the cover layer, M−N>0. The ball surface is scratch-resistant and has an excellent durability, and the ball has a reduced spin rate on shots with a driver or a long iron, resulting in an increased carry.

The invention provides a terminal registration method and system, and the method comprises the steps: determining an agent terminal, enabling the agent terminal to agent other terminals in the same terminal group, and sending the batch registration request information to a base station, enabling the base station to receive the batch registration request information, process the batch registration request information one by one, generate corresponding feedback information, and send the feedback information to a corresponding terminal. Through the method provided by the invention, the time consumed in the terminal registration process is shortened, the registration speed of the terminal is increased, and the operation and maintenance efficiency of terminal registration and work recovery after the base station is restarted is improved.

The invention provides an ejector for a heat recovery or work recovery system and the heat recovery or work recovery system. The ejector comprises a high-pressure fluid channel, a low-pressure fluid channel, a mixing chamber and a diffusion chamber, wherein the high-pressure fluid channel comprises a high-pressure fluid inlet and a high-pressure fluid nozzle; the low-pressure fluid channel comprises a low-pressure fluid inlet and a suction chamber surrounding the high-pressure fluid nozzle; the mixing chamber is in fluid communication with the high-pressure fluid channel and the low-pressure fluid channel; the diffusion chamber is arranged downstream of the mixing chamber; the high-pressure fluid nozzle sequentially comprises a contraction section, a throat portion and a diffusion section, and a high-pressure fluid outlet is limited at the tail end of the diffusion section; and the circumferential wall of the diffusion section is in an outwards-protruding arc shape in the longitudinal section. The ejector has higher efficiency.

The invention discloses a solar-energy-based hybrid energy warmer. The solar-energy-based hybrid energy warmer comprises a warmer, a solar system, an energy storage system, an energy complementary system and a hybrid energy control system, wherein the warmer comprises a furnace body, a panel, a circuit board and a heating component; a heating zone is arranged on the panel, is arranged corresponding to the heating component, and is located above the heating component; the heating component comprises a metal shell, ceramic heating fins and a ceramic heat storage body; the solar system is used for converting solar energy to electric energy to provide electric energy for the warmer; the energy storage system is used for storing electric energy and is connected with the solar system; the energy complementary system is used for providing electric energy for the warmer when the capacity of the energy storage system is insufficient; the hybrid energy control system is used for providing electricity for the warmer and the energy storage system utilizing the solar system when the solar system works normally, and providing electricity for the warmer utilizing the energy storage system when the solar system does not work normally; when the discharge capacity of the energy storage system is lower than a preset value, electricity is provided for the warmer by utilizing the energy complementary system; and when normal work of the solar system is recovered, the energy complementary system stops providing electricity for the warmer.

The invention provides an ejector for a heat recovery or work recovery system, the heat recovery or work recovery system, and a method of directing fluid therein. The ejector comprises a high-pressure fluid channel, a suction fluid channel, a mixing chamber and a diffusion chamber, wherein the high-pressure fluid channel comprises a high-pressure fluid inlet and a high-pressure fluid nozzle; the suction fluid channel comprises a suction fluid inlet and a suction chamber surrounding the high pressure fluid nozzle; the mixing chamber in fluid communication with the high-pressure fluid channel and the suction fluid channel, correspondingly; the diffusion chamber is located downstream of the mixing chamber; and the front end of the outer wall of the high-pressure fluid nozzle is provided with an arc-shaped rounding part. The ejector according to an embodiment of the present invention has improved efficiency.