摘要:
Disclosed is a solar energy automatic soaking and heat-collecting tube, comprising a glass tube (1b2) and an absorption tube (1b3) coated with a heat-absorbing layer sheathed therein, a vacuum existing between the glass tube (1b2) and the absorption tube (b3). A baffle plate (b4) capable of making fluid in the absorption tube (b3) alternately reverse and flow up and down is provided in an inner chamber of the absorption tube (b3), the partition plate (b4) being helical in shape and being fixed in the absorption tube (b3). Also disclosed is a heat power generating system and technique using complementary light and heat power generation, preventing a solar energy complementary light and heat power station from being affected by the weather, and maintaining stable power generation when it is night or there is not sufficient sunlight.
摘要:
A light-catalyzed reaction system by collecting sunlight mainly comprises a light collector, a light conduction device, and a light transmitting reactor capable of transmitting full-spectrum rays of sunlight. The light collector is fixed at the free end of a two-degree-of-freedom bracket formed by connecting a pitching main shaft to an orientation main shaft, and the orientation main shaft and the pitching main shaft can be driven respectively by separate servo motors to relatively rotate to track the sun. Multiple layers of light-collection convex lens groups are disposed on the light collector, and converging rays formed by transmission and convergence of collected sunlight through the light conduction device are directed to the light transmitting reactor. The light transmitting reactor comprises a light transmitting cylinder and a sealing cover. The sealing cover is arranged on the light transmitting cylinder, and the light transmitting cylinder is filled with a reaction solution. The system is applied to processes of light-catalyzed hydrogen production and light-catalyzed methyl alcohol and oxygen production.
摘要:
Provided is a method for producing nano silicon dioxide and nano calcium carbonate by using rice hull ash and flue gas of a biomass power plant. The method comprises: adding the rice hull ash into a sodium hydroxide solution, fully reacting at the temperature of 95-100 °C for 3-4 hours, and performing filtration; adding water into a filtrate to dilute the filtrate, controlling sodium silicate in a system to be 8-15 wt% in silicon dioxide, heating to 60-80 °C, adding a dispersing agent, continuously feeding the flue gas of the biomass power plant under a normal pressure condition, stirring to react for 2-4 hours to obtain the nano silicon dioxide; mixing the filtrate and a washing liquid, adding a calcium hydroxide solution at the temperature of 50-70 °C, and stirring to react for 0.5-2 hours to obtain the nano calcium carbonate. The particle sizes of the silicon dioxide product and the calcium carbonate product which are obtained by the method are extremely small and can both reach the nano level.
摘要:
Provided is a seawater desalting apparatus using solar energy for continuously supplying heat, comprising a seawater purifying system and a seawater desalting system, wherein the seawater purifying system consists of an extraction seawater well (6a), a seawater sterilizing clarification pool (6), a multi-stage ultra-filter pool (7) and a purified seawater pool (8); and the seawater desalting system consists of a solar energy concentration and heat collection apparatus (1), a solar energy heat storage tank (2), a purified seawater heater (3) and a multi-stage seawater flash evaporator. The solar energy concentration and heat collection apparatus (1) collects sunlight heat energy via a heat-conducting working medium during daytime, stores the sunlight heat energy in the solar energy heat storage tank (2), and then heats the purified seawater via the heat-conducting working medium to a certain temperature; the hot seawater is conveyed to the multi-stage flash evaporator, and sprayed and evaporated stage by stage, and fresh water and brine are separated out. Also disclosed is a seawater desalting method using solar energy for continuously supplying heat. The seawater desalting apparatus using solar energy for continuously supplying heat can effectively collect relatively scattered solar energy to heat and evaporate seawater, the quality of the resulting fresh water reaches the drinking water standards, and solar energy is stored to allow continuous operation to produce fresh water.
摘要:
The present invention provides an apparatus and a method for increasing a biomass pyrolysis and gas production speed and obtaining a nano-scale silica material. The apparatus comprises a spiral feeding apparatus, a pretreatment stirrer, a pyrolysis apparatus, a combustion apparatus, a steam generator and a calcination apparatus. A biomass raw material is sent to the pretreatment stirrer through the spiral feeding apparatus. The biomass raw material after stirring is mixed with superheated steam generated by the steam generator and enters the pyrolysis apparatus. Combustible gas separated out from the pyrolysis apparatus enters the combustion apparatus for combustion. Hot flue gas generated by combustion in the combustion apparatus heats the steam generator to generate the superheated steam. Ash discharged from an ash outlet in a lower part of the pyrolysis apparatus enters the calcination apparatus for calcination. The present invention uses the superheated steam to heat and dry the biomass raw material, and is faster than a dry speed of a method where the biomass raw material is dried by hot air in a same temperature, thus greatly increasing a pyrolysis gas separating-out speed of a system compared with a pyrolysis gas separating-out speed of a conventional system and a heat value of produced gas.
摘要:
A solar biomass complementary thermal power system comprises a solar light concentrating device, a solar heat storage tank (1), a biomass thermal power station, a combined cooling and refrigeration device for central cooling, and a heat water system for central heating. The solar light concentrating device is connected to the solar heat storage tank (1) through a pipeline, an inlet of a first output heat exchanger (B1) of the solar heat storage tank (1) is connected to an outlet of a biomass boiler water-feeding pump (3a), an outlet of the first output heat exchanger (B1) is connected to an inlet of a water-feeding system of the biomass boiler. An inlet pipeline of a second output heat exchanger (B2) of the solar heat storage tank (1) is connected to an output pipeline of a water purification field, and an output outlet of the second output heat exchanger (B2) is connected to a thermal energy input pipeline of the combined cooling and refrigeration device. Working cooling water of the combined cooling and refrigeration device is connected to a heat water tank of the heat water system, so as to perform central heating for users. The solar heat storage tank (1) is a two-medium or three-medium two-circulation heat storage tank, and a heat storage medium (1a) is a heat-conductive oil or a fused salt.
摘要:
An integrated solar energy drying system that collects, stores and supplies heat, and comprises a solar greenhouse, a solar energy heat storage bed (1), an air condenser (3), a wet dust remover (4), and pipes and valves (9.1 - 9.12) connecting each device, and air movers (2.1 - 2.3). The solar greenhouse is a framed structure having a floor of perforated cement tiles (7). The solar energy heat storage bed (1) comprises upper and lower air chambers (1.1), a number of solar energy collection and storage pipes (1.3) and a sealing chamber. The air condenser (3) is a cylindrical structure, the sides whereof are provided with openings for the inflow and outflow of air, and the top and bottom openings whereof are provided with air chambers (3.1) interconnected by air pipes (3.2). An air inflow port is provided below the floor of the solar greenhouse and two air outflow ports are provided above said floor. The air inflow port and one air outflow port of the solar greenhouse, the upper air chamber of the solar energy heat storage bed (1), the upper air chamber of the air condenser (3) and an air outflow port of the air condenser (3) are respectively connected by pipes; the other air outflow port of the solar greenhouse, the lower air chamber of the solar energy heat storage bed (1) and an air outflow port of the air condenser (3) are connected by pipes, and the lower air chamber of the air condenser (3) is connected to the wet dust remover (4).
摘要:
A dual-layer cool-and-heat-purpose salt-exclusive solar pond is formed by a salt-exclusive solar pond (1) at an upper layer and an energy storing pond (2), which are separately connected to a water source. The salt-exclusive solar pond (1) comprises a pond bottom (1.1) and a pond wall (1.2). A top cover of the energy storing pond (2) is the pond bottom (1.1) of the salt-exclusive solar pond (1). A pond wall and a bottom surface of the energy storing pond (2) are a composite layer (2.1). A heat exchange coil (2.2) is disposed in the energy storing pond (2) and used for implementing heat exchange in the energy storing pond (2). The salt-exclusive solar pond (1) and the energy storing pond (2) are communicated through a valve of the pond bottom (1.1) of the salt-exclusive solar pond (1) in a controllable manner. A cross-season energy-storing cooling and heating system using a dual-layer cool-and-heat-purpose salt-exclusive solar pond comprises: at least two dual-layer cool-and-heat-purpose salt-exclusive solar ponds and a heat pump (5). When at least one dual-layer dual-purpose salt-exclusive solar pond is used for cooling, at least one dual -purpose salt-exclusive solar pond is used for heating, and vice versa. The heat pump (5) has one end connected to a circulation line in which the heat exchange coil (2.2) of each energy storing pond (2) is located and the other end connected to an external user (6). A plurality of water pumps (3.1-3.5) and valves (4.1-4.13) are disposed in a system line and separately used for providing power and working conditions of a control system to a medium in the line.