781 results about "Warm water" patented technology

This invention discloses a supercritical carbon dioxide cycle generator set water spray desuperheating system, comprising a supercritical carbon dioxide cycle power generation system and a water spray desuperheating system; the supercritical carbon dioxide cycle power generation system includes a heater, a screen-type superheater, a final-stage superheater, and a turbine; the water spray desuperheating system includes a first desuperheating water injection point, a second desuperheating water injection point, and a liquid-water separation system; the heater outlet is sequentially connected to the turbine inlet via the first desuperheating water injection point, the screen-type superheater, the second desuperheating water injection point, and the final-stage superheater; the turbine outlet is connected to the inlet of the liquid-water separation system; the liquid outlet of the liquid-water separation system is connected to the first and second desuperheating water injection points; and the gas outlet of the liquid-water separation system is connected to the heater inlet. This system can solve various problems caused by carbon dioxide desuperheating.

The invention discloses a loop heat pipe and water heat storage coupling system and a working method, and belongs to the technical field of heat storage. The system has the modes of light gathering of the light-following trough heat collector, heat conduction of the loop heat pipe, heat storage of the water storage tank and warm water irrigation by using the stored heat water. When sunlight is sufficient in the daytime, the system converts solar energy into sensible heat of water in the heat storage water tank and stores the sensible heat, and the sensible heat is insulated by soil to slow down heat loss; when plants need to be irrigated, warm water in the irrigation water tank is used for irrigation; at night or in the absence of illumination, warm water in the heat storage water tank exchanges heat with air in the greenhouse, so that a lasting and stable heat supply source is provided for the greenhouse. Solar energy collected by the heat collecting groove is efficiently transmitted into the water tank through the loop heat pipe driven by temperature difference to be converted into sensible heat of water to be stored, the sensible heat is used for increasing the greenhouse temperature and irrigating plants when heat is needed at night, and the purposes of efficiently storing heat in the daytime and continuously supplying heat at night are integrally achieved.

The invention relates to a variable dew point control method of an all-air air conditioning system, belongs to the technical field of heating ventilation air conditioners, and solves the technical problems of temperature and humidity coupling in the prior art and difficulty in landing of a chilled water temperature resetting technology. The control method comprises the steps of S1, parameter initialization, S2, system starting and stabilizing, S3, air supply dew point dynamic adjustment and cold water valve control, S4, temperature and air supply amount control and S5, fresh air optimization and air valve control. The water supply temperature is adjusted by dynamically adjusting the air supply dew point and dynamically increasing the temperature of the outlet of the surface air cooler, the energy efficiency of the unit is remarkably improved, and the system is suitable for the chilled water temperature resetting technology and compatible with the application of the medium-temperature water supply technology.

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a biomass reinforced cement-based thermal insulation wall material and the wall material. The preparation method comprises the following steps: (1) crushing wood fibers, putting the crushed wood fibers into a NaOH solution, washing with water and drying; (2) carrying out dry mixing on cement, the modified wood fiber, nano SiO2 particles and calcium stearate; (3) diluting hydrogen peroxide with warm water, adding into the mixture, and stirring; (4) injecting the foaming slurry into a mold, and vibrating; and (5) steam curing. Through a collaborative technology of fiber surface modification, nano-particle regulation and control and hydrophobic layer construction, the comprehensive performance breakthrough of the fireproofing grade of A1 grade, the heat conductivity coefficient of 0.048-0.055 W / (m.K) and the compressive strength of 1.2-1.8 MPa is realized. The energy consumption is reduced by 70% through the low-temperature steam curing process, the proportion of agricultural waste is larger than or equal to 30%, the carbon emission intensity is smaller than or equal to 150 kgCO2 / m < 3 >, and the requirement for green buildings is met.

This invention provides an environmentally friendly expandable polystyrene bead and its preparation process, belonging to the field of foaming material technology. The preparation process includes the following steps: S1, injecting 65.28g of deionized water into a reaction vessel, stirring, adding 0.13g of dispersant and 0.16g of composite stabilizer, dispersing for 20min, then adding 31.95g of styrene monomer and 0.3g of composite initiator, followed by the addition of pentane and SiO2 micelle composite to obtain a base solution; wherein the mass ratio of pentane to SiO2 micelle composite is 1:(0.2-0.3); the mass of pentane is 3.1%-3.2% of the mass of the base solution; S2, subjecting the base solution to stepwise heating at 86℃-140℃ with stirring, then stopping heating, continuing stirring, and allowing it to cool naturally to 40℃, then stopping stirring, with a total reaction time of 8.5-9.5h to obtain the reaction product; S3, discharging the material, washing the reaction product with warm water, filtering, and obtaining the environmentally friendly expandable polystyrene beads. This invention improves the average particle size of expandable polystyrene beads while reducing fine powder.

The invention relates to the technical field of ocean remote sensing monitoring, in particular to a remote sensing image-based warm discharge water reference temperature self-adaptive extraction method, which specifically comprises the steps of S01, data acquisition and preprocessing, S02, cumulative histogram generation, S03, curve fitting and smoothing, S04, second derivative calculation and S05, reference temperature determination. According to the method, the reference temperature is determined by analyzing the statistical distribution characteristics of the sea surface temperature data field, namely the form of the accumulative histogram, the physical demarcation point of the background water body and the warm drainage area on the temperature distribution is automatically positioned by using the second derivative, the process is completely driven by data, the interference of subjective factors is eliminated, and the accuracy of temperature distribution is improved. The method can automatically adapt to water areas with different geographical forms and different warm drainage diffusion modes, and objectivity and universality of reference temperature extraction are achieved.

The invention discloses a thermal power generating unit main reheating steam temperature wide-load self-adaptive adjusting method and system, relates to the technical field of electric power industry automation and control, and aims at solving the problems that an existing adjusting method is large in steam temperature fluctuation, high in thermal stress and poor in main reheating collaboration under the wide-load working condition. The method comprises the steps of calculating main steam phase saturation and mapping a target value; calculating the maximum change rate based on the thermal physical parameters of the material, and generating a reference track with the limited change rate; the steam phase saturation of the main steam is used as a phase reference, and the reheated steam is controlled to respond according to a preset phase difference; a combustion system, a flue gas temperature adjusting baffle and a temperature reducing water system are cooperatively controlled; the system comprises a vapor phase saturation processing module, a dynamic boundary generation module, a phase coordination control module, an execution mechanism coordination module, a steady state detection module and a mode switching module. Accurate steam temperature adjustment under the wide load is achieved, material thermal stress is reduced, unit operation safety and economical efficiency are improved, and the variable-load operation requirement of the unit is met.

The invention discloses a mineral-based easily-recyclable compostable water-based barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating takes water as a carrier, and is composed of a biodegradable film forming system and a designed graded lamellar mineral system composed of three minerals with different sizes and morphologies. The mineral system comprises flaky kaolin with specific morphology and size, non-asbestos grade flaky talc and fully stripped sodium montmorillonite. A mineral sheet layer forms a compact parallel spreading barrier path in a coating through a specific coating and drying curing process, and excellent water vapor and oxygen barrier, water resistance and oil resistance are realized under the low dry weight of 8-15g / m by combining with a pH value response type reversible cross-linking system. The coating system does not contain polyvinylidene chloride and perfluoroalkyl and polyfluoroalkyl substances. The paper-based material coated with the coating is easy to defibrillate and recover under the standard alkaline warm water condition, the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirement.

The invention provides a combined heat and power system and a control method thereof, and relates to the technical field of combined heat and power. The system comprises a fuel gas heat and power cogeneration subsystem, a heat supply subsystem and a fused salt heat storage subsystem, the fuel gas heat and power cogeneration subsystem is used for fuel gas power supply, the fused salt heat storage subsystem can convert solar energy and / or flue gas generated by power supply into heat energy of high-temperature fused salt to be stored, and the heat supply subsystem conducts primary heating on heat supply return water through geothermal energy; and flue gas and / or high-temperature fused salt generated by power supply are / is used for conducting secondary heating on heat supply return water. Geothermal energy, solar energy and fused salt heat storage are coupled, and renewable energy sources are fully utilized for heat and power cogeneration, so that the power supply requirement and the heat supply requirement of a user are met. In the ground source heat pump unit, primary heating is conducted through geothermal energy, heat supply return water is heated into warm water, then the warm water is secondarily heated into hot water through smoke in the gas heat and power cogeneration system, the compression ratio of a compressor in a ground source heat pump can be reduced, and power consumption of the compressor is reduced.

The invention belongs to the technical field of rubber sealing rings, and particularly discloses a wading rubber sealing ring and a preparation method thereof, the wading rubber sealing ring comprises the following components by weight: 60-70 parts of modified ethylene propylene diene monomer, 35-50 parts of modified white carbon black, 20-30 parts of hydrogenated nitrile rubber, 0-10 parts of fluororubber, 2-5 parts of polyester fiber, 0.5-3 parts of an anti-hydrolysis agent, and 1-3 parts of a hydrophobic agent. 2-4 parts of an antimicrobial agent, 3-5 parts of an anti-aging agent and 1-7 parts of sulfur; the anti-hydrolysis agent is a mixture of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and a carbodiimide anti-hydrolysis agent; the hydrophobic agent is a mixture of polydimethylsiloxane and perfluorooctyltriethoxysilane, and the hydrophobic agent is a mixture of polydimethylsiloxane and perfluorooctyltriethoxysilane. The wading rubber sealing rubber ring and the preparation method thereof are suitable for fresh water and warm water scenes, and have wide application prospects in ship sealing and sewage treatment equipment in seawater and industrial wastewater scenes.

The invention relates to the technical field of air source heat pumps, and discloses a wind-solar complementary air source heat pump integrated system which comprises a hardware device, an active frost suppression module and a predictive optimization scheduling control system. The control system can collect internal and external state data of the system and quantitatively calculate frosting risk indexes of the evaporator in all time periods in the future based on future environment temperature and humidity predicted values. According to the method, the hardware device is connected with the active frost suppression module, a dynamic decision is made according to the frosting risk index, when it is judged that the future frosting risk exceeds a preset threshold value, the active frost suppression module is started in advance, photovoltaic heat recovery warm water stored in the hardware device is used for preheating air entering an evaporator, and frosting is actively suppressed from the source. By means of predictive active frost suppression, a traditional passive and high-energy-consumption defrosting mode is replaced, the operation efficiency and heating stability of the heat pump system in the wet and cold environment are remarkably improved, and comprehensive and efficient utilization of energy is achieved.

The application discloses a mineral-based easily-recyclable compostable water-barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating is formed by a biodegradable film-forming system and a hierarchical lamellar mineral system containing three different scales and morphologies. The mineral system contains specific morphology and size of lamellar kaolin, non-asbestos grade lamellar talc and fully exfoliated sodium montmorillonite. The mineral lamella forms a dense parallel spread barrier path in the coating through a specific coating and drying solidification process, and combines a pH value responsive reversible cross-linking system to achieve excellent water vapor and oxygen barrier properties, water resistance and oil resistance at a low dry weight of 8-15 g / m2. The coating system does not contain polyvinylidene chloride and perfluoro and polyfluoro alkyl substances. The paper-based material coated with the coating is easily defibered and recycled under standard alkaline warm water conditions, and the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirements.

The invention provides a traditional Chinese medicine composition for relieving cough and asthma and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 5-15 parts of herba ardisiae japonicae, 5-15 parts of honey-fried folium eriobotryae, 1-3 parts of honey-fried herba ephedrae, 2-5 parts of semen armeniacae amarae, 1-5 parts of roselle, 2-6 parts of mint, 2-6 parts of pericarpium citri reticulatae, 2-6 parts of caulis bambusae in taeniam, 4-12 parts of herba houttuyniae and 1-3 parts of honey-fried licorice root. The herba ephedrae is changed into the honey herba ephedrae, and the roselle is added, so that the product is weakened in sweating effect and more prominent in lung moistening and cough relieving, and is more suitable for weak people to use, and the applicable crowd is widened; meanwhile, a hydrotropy technology is adopted in the production and use process, so that the solubility of traditional Chinese medicine components is improved; the traditional Chinese medicine composition is taken after being mixed with warm water, solves the problem of overhigh alcohol content in the original product, is convenient to carry and adjustable in administration dosage, and is convenient for children and patients to use.

The invention provides a nuclear power plant thermal discharge dynamic change prediction analysis method, and relates to the technical field of data processing, and the method comprises the steps: collecting a temperature observation data set, extracting a temperature maximum value sequence and a temperature minimum value sequence in an equal-tide period, calculating a wave amplitude stable factor, extracting a plurality of trend inflection points of a temperature change first-order derivative curve, and calculating the temperature change first-order derivative curve. The method comprises the following steps: determining thermal expansion boundary candidate areas caused by thermal drainage, evaluating a time interval and amplitude difference between a lag response inflection point in each thermal expansion boundary candidate area and a previous dominant temperature rise point to obtain a thermal lag offset value, extracting a boundary sensitive area, performing multipoint communication fitting, determining a maximum space extrapolation boundary influenced by the thermal drainage effect, and performing thermal expansion on the maximum space extrapolation boundary. And carrying out trajectory tracking and change direction regression on the extrapolation boundaries at multiple different time points, and identifying a heat disturbance movement trend to obtain dynamic evolution data. The method can identify the diffusion trend of the warm discharged water and predict the temperature change.

The invention discloses a device and method for reducing environment temperature difference of double grating rulers, the device comprises a stand column, an upper grating ruler and a lower grating ruler, the stand column is provided with an upper layer pipeline and a lower layer pipeline, and the upper layer pipeline is arranged in parallel close to the upper grating ruler; the lower-layer pipeline is arranged in parallel close to the lower grating ruler, and the upper-layer pipeline is communicated with the lower-layer pipeline to form a fluid circulation loop; a water inlet of the upper-layer pipeline is connected with a temperature-adjusting water cooler, and a water outlet of the lower-layer pipeline is communicated with the temperature-adjusting water cooler; an upper-layer temperature detection sensor used for detecting the temperature of the upper grating ruler is arranged beside the upper grating ruler, a lower-layer temperature detection sensor used for detecting the temperature of the lower grating ruler is arranged beside the lower grating ruler, and the upper-layer temperature detection sensor, the lower-layer temperature detection sensor and the temperature adjusting water cooler are all electrically connected with the PLC. The grating ruler feedback precision deviation caused by temperature difference can be effectively eliminated or reduced, and the machining precision and stability of a machine tool are improved.

The utility model discloses a water tank and a cleaning machine, and relates to the technical field of electric appliances, the water tank comprises a tank body, and a first water cavity and a second water cavity are arranged in the tank body at an interval; the box body is provided with a first water inlet and a first water outlet which are communicated with the first water cavity, the first water inlet is used for allowing external hot water to enter the first water cavity, and the first water outlet is used for outputting the hot water in the first water cavity; the box body is provided with a second water inlet and a second water outlet which are communicated with the second water cavity, the second water inlet is used for allowing external normal-temperature water to enter the second water cavity, and the second water outlet is used for outputting the normal-temperature water in the second water cavity; hot water output by the first water outlet is used for being mixed with normal-temperature water output by the second water outlet, hot water provided by a municipal water supply system can flow into the first water cavity from the first water inlet, the normal-temperature water can flow into the second water cavity from the second water inlet, and the water tank can be directly matched with the normal-temperature water and the hot water supplied by the water supply system. No additional heating device is needed, and the applicability is high.

The invention relates to the field of medicines and functional foods, in particular to a preparation method of a nanoscale curcumin suspension, the curcumin suspension and application. The preparation method of the nanoscale curcumin suspension comprises the following steps: (1) adding phospholipid and polyglycerol ester into warm water, and carrying out high-speed shearing and uniform dispersion to obtain a mixed solution A; (2) weighing curcumin, adding the curcumin into the mixed solution A, and performing high-speed shearing and uniform dispersion to obtain a mixed solution B; and (3) grinding the mixed solution B in a sand mill to obtain the curcumin suspension, wherein the particle size of the curcumin is 100-200 nm. The curcumin prepared by the preparation method of the curcumin suspension has the characteristics of high loading capacity, high stability and high safety, and solves the problems that in the prior art, the curcumin is low in loading capacity and poor in safety, dissolving equipment is needed during use, and processing aids such as organic solvents are used during processing; the application range of the curcumin is greatly expanded; the preparation convenience is improved.

The embodiment of the invention discloses a water drinking device and a control method thereof. The water drinking device comprises a hot tank and a warm water pipeline. The warm water pipeline comprises a warm water tank, a warm water main pipe, a warm water outlet valve and a first water outlet which are sequentially connected in the water flow direction of warm water, and further comprises a warm water branch pipe with the two ends connected with the warm water main pipe and the hot tank respectively and a first control valve arranged on the warm water branch pipe. When warm water is taken, the warm water outlet valve is switched on, the first control valve is switched off, warm water flows out of the warm water tank, the warm water main pipe, the warm water outlet valve and the first water outlet, and when the warm water pipeline is sterilized, the warm water outlet valve is switched off, the first control valve is switched on, and the warm water outlet valve is switched off. Hot water sequentially flows back into the warm water tank from the hot tank, the warm water branch pipe and the warm water main pipe. According to the embodiment of the invention, hot water flows back into the warm water tank from the hot tank to sterilize the warm water pipeline, so that the quantity of bacteria in the warm water pipeline is reduced.

The invention provides a soil mixing and sowing method of typical herbaceous plants and a method for forming a biological ridge of a newly-built terrace edge ridge, which comprises the following steps of: 1) selecting qualified trifolium repens, ryegrass, alfalfa and vicia villosa seeds according to process requirements; 2) seed pretreatment: soaking trifolium repens and alfalfa seeds with warm water at 30-40 DEG C for 2-4 hours; the method comprises the following steps: soaking ryegrass and vetch seeds in cold water for 1-2 hours; (3) respectively and uniformly mixing the four seeds with soil according to the proportion required by the process; (4) uniformly sowing the seed-soil mixture on a target land parcel; and 5) management after sowing. According to the herbaceous vegetation soil mixing and sowing method, high germination and survival rate of the herbaceous vegetation can be guaranteed, the plant height, the above-ground biomass and the vegetation coverage of all the herbaceous vegetation are continuously increased in the growing season, and the root system biomass is in the trend of firstly decreasing and then increasing; and all herbaceous vegetation improves the water retention performance of the soil.

The utility model discloses a novel drying room with waste heat recovery, which belongs to the field of waste heat recovery and comprises a drying room, a steam-water heat exchanger and an ultra-high-temperature heat pump, a drying room air inlet pipe and a drying room exhaust pipe are connected between the drying room and the steam-water heat exchanger, an evaporator and a condenser are mounted in the ultra-high-temperature heat pump, and a smoke exhaust fan is mounted at the upper end of the drying room. A material inlet is formed in the right end of the drying room, and a hot water pipe and a warm water pipe are connected between the condenser and the steam-water heat exchanger, so that waste heat of the equipment can be recycled through the ultra-high-temperature heat pump, and hot water is prepared and used for heating hot air to be used for drying the drying room. The problems of short service life of heating equipment, increase of system pressure, low-efficiency operation of the system and increase of energy consumption caused by overhigh temperature can be reduced, and meanwhile, recovered heat can also be used for a drying room, so that the effects of energy conservation and emission reduction are achieved.

The application discloses a biological enzyme degreasing treatment method for reducing down feather peculiar smell, which comprises the following steps: raw material down feather pre-finishing, pre-wetting, pulse negative pressure penetration, controlled protease pretreatment, lipase deep degreasing, intermittent low-energy ultrasonic assisted migration, warm water rinsing, cyclodextrin inclusion peculiar smell, weak acid recovery, limited fat supplementing and dehydration low-temperature drying. The application discharges the air in the down feather through pulse negative pressure and promotes the treatment liquid to enter the deep layer of the down feather, improves the contact ability of the lipase and the residual lipid through the protease pretreatment, promotes the oil hydrolysis and migration through the lipase and low-energy ultrasonic, and reduces the residual fat and the aftertaste risk through the cyclodextrin inclusion of volatile peculiar smell substances such as fatty acids, aldehydes and ketones, the weak acid recovery and the fat supplementing treatment, reduces the damage of strong alkali washing to the down feather, maintains the down feather fluffiness, softness and fiber integrity, and is suitable for industrial degreasing and peculiar smell removing treatment of the down feather.

The invention discloses a black bean beverage making method which comprises the following steps: S1, soaking black beans and pericarpium citri reticulatae for 30 minutes; s2, putting the cleaned black beans and dried orange peel into warm water with the water temperature of 16 DEG C, and continuously soaking until the skins of the black beans are completely expanded; s3, pouring the soaked black beans and dried orange peel into a net bag; s4, after the receiving plate is full of the juice, the juice is put into a refrigerating chamber to be precipitated until precipitates in the receiving plate are completely separated from the juice; s5, extracting the precipitated juice, adding starch liquefying enzyme and protease into the juice, hydrolyzing the pulp juice and part of protein, and extracting the juice again; s6, mixing juice extracted twice, and performing enzyme treatment; and S7, performing sterilization treatment on the juice subjected to the enzyme treatment, and packaging with 100g per bag. After being drunk, the tea also has the effects of strengthening the heart, diminishing inflammation, relieving cough and improving middle qi of a drinker.

The high-temperature steam waste heat utilization mechanism on the paperboard production line comprises a spray cooling device, a wind power heat exchange device and a steam inlet pipeline, the wind power heat exchange device is connected to the right side of the steam inlet pipeline through a pipeline, and the spray cooling device is connected to the right side of the wind power heat exchange device through a pipeline; the spray cooling device further comprises a device body, a water inlet pipeline and a water outlet system; the wind power heat exchange device further comprises an air inlet pipeline, a heat exchanger, an air box and a steam connecting pipeline. The device has the functions of automatically adjusting the water temperature, distributing warm water and conveying the warm water into water equipment in time, a wind power heat exchange device is additionally arranged, the step of waste heat recovery is increased, the flow of steam waste heat is shared, and meanwhile the waste heat recovery efficiency of the device is improved; condensate water and steam are treated separately, so that the working efficiency of the device is improved; the temperature difference between cooling water and steam in the two heat exchange steps is increased, and the heat exchange efficiency is improved.

The invention discloses a household quick-heating large-flux water purification system which is characterized in that a water outlet of a first water purification unit is connected with a water inlet of a first pressure source through a first control valve; a first pressure source water outlet is connected with a second water purification unit water inlet; a second water purification unit water outlet is connected with a third water purification unit water inlet; a first water outlet of the third water purification unit is connected with a water inlet of the first control valve through a fourth control valve, and a second water outlet is respectively connected with a water inlet of the second control valve and a water inlet of the third control valve through a first flowmeter; a second control valve water outlet is connected with a second pressure source water inlet; a second pressure source water outlet is connected with a first water inlet of the double-temperature faucet; a third control valve water outlet is connected with a water inlet of the heating water storage unit; the heating water storage unit is used for storing and heating incoming water, the low water level can trigger the first pressure source to start water replenishing, and the water outlet is connected with the water inlet of the quick heating unit through the second flowmeter; a water outlet of the quick heating unit is connected with a second water inlet of the double-temperature faucet and used for heating water from the water storage unit again.

The invention relates to a preparation method of ytterbium oxide with specific granularity and specific surface area, and belongs to the technical field of rare earth oxide preparation. The preparation method comprises the following steps: preparing oxalic acid into an oxalic acid solution with the mass fraction of 5-15wt%; preparing ytterbium chloride into an ytterbium chloride solution with the concentration of 0.2-1.0 mol / L; a polyvinyl alcohol dispersing agent solution with the mass fraction of 0.8-1.5 wt% is added into the ytterbium chloride solution, the adding amount of the polyvinyl alcohol dispersing agent solution is 2-4% of the mass of the ytterbium chloride solution, and ytterbium chloride mixed liquid is obtained; warm water is added into a reaction kettle, the ytterbium chloride mixed solution is continuously added along with stirring operation, and then the oxalic acid solution is continuously added; and directly carrying out vacuum filtration without aging, collecting a filter cake, and calcining to obtain a finished product. By optimizing the using amount of the dispersing agent and the precipitation process and accurately controlling process parameters, the obtained product is stable in performance, uniform in particle size distribution, small in specific surface area deviation and good in reproducibility.

The application provides a compressed air energy storage power generation system based on cascade utilization of photothermal heat compensation and flash evaporation, and relates to the technical field of energy storage power generation. Air is compressed by a multistage compressor through an air compression heat exchange unit, high-pressure air is obtained, heat generated by compressed air is absorbed by low-temperature water, high-temperature water is obtained, an expansion power generation system is used, a multistage expander is used, high-temperature heat conducting oil obtained by the high-temperature water and a photothermal heat collection unit is used to heat input high-pressure gas of each stage of the expander in sequence, power generation is performed, electric energy, exhaust gas of the last stage of the expander, medium-temperature water and low-temperature heat conducting oil are obtained, high-grade energy utilization is realized, heat of the medium-temperature water is converted into electric energy by a flash evaporation power generation system, medium-grade energy utilization is realized, low-grade energy utilization is realized through preheating, the problem that the existing compressed air energy storage power generation system cannot realize cascade utilization of high, medium and low-grade energy is solved, and the application is suitable for energy storage power generation.

This improves the hot water supply capacity of a hot water heat source unit with a configuration in which two tanks are connected in series, in accordance with the user-set temperature. [Solution] An upstream sub-boiler 10S and a downstream main boiler 10M are connected in series via piping 8 between the inlet pipe 3 and the outlet pipe 4. In the sub-boiler 10S, temperature control is performed by the controller 100S turning the burner 20S on and off based on a comparison between the temperature detected by the temperature sensor 110S and a first control target temperature. In the main boiler 10M, temperature control is performed by the controller 100M turning the burner 20M on and off based on a comparison between the temperature detected by the temperature sensor 110M and a second control target temperature. The first control target temperature of the sub-boiler 10S and the second control target temperature of the main boiler 10M are set to be equivalent to the user's hot water setting temperature.

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, an air circulating pipeline and a water pipeline, the air circulating pipeline and the water pipeline are arranged in the artificial chamber, and an air inlet and an air outlet at two ends of the air circulating pipeline are oppositely arranged along two sides of the artificial chamber respectively. An axial flow fan is arranged in an air inlet of the air circulating pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of the warm water tank and an in-plant circulating cooling water inlet, the water outlet pipeline is communicated with a water inlet of the cold water tank and an in-plant circulating cooling water return port, and a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline. The spiral heat exchange pipe is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, adjusting the temperature of the air in the artificial chamber during inflation energy storage and deflation energy release, guaranteeing the structural safety of surrounding rock around the artificial chamber and prolonging the service life of sealing materials in the chamber.

The invention discloses a silicon carbide epitaxial wafer cleaning method. The silicon carbide epitaxial wafer cleaning method sequentially comprises the following steps: S1, pre-cleaning with ultrapure water and high-pressure N2 water-gas two-fluid; s2, transferring into an acid liquor tank filled with a mixed solution of hydrochloric acid, hydrofluoric acid and hydrogen peroxide for treatment; s3, transferring into No.1 alkali liquor filled with a mixed solution of ammonia water and hydrogen peroxide for treatment; s4, transferring into No.2 alkali liquor containing a mixed solution of ammonia water, hydrogen peroxide and an ampholytic surfactant for treatment, wherein the concentration of the ammonia water in the mixed solution in the step is lower than that of the ammonia water in the mixed solution in the step S3; s5, slowly pulling and drying with warm water; and S6, infrared heating and drying. Through cooperation of the steps, the cleaning effect of the silicon carbide epitaxial wafer is improved, and the number of residual metal ions and particles on the surface of the epitaxial wafer is effectively reduced.

The invention provides an integrated temperature and pressure reduction device based on pressure control and a working method, and belongs to the technical field of steam utilization. The problems that in the prior art, temperature and pressure reduction operation of steam is difficult to achieve efficiently and accurately, and the steam utilization efficiency and safety are affected are solved. The temperature and pressure reducing valve comprises a main flowing pipe, a temperature and pressure reducing cavity, an inner sealing face, an outer sealing face and a pressure control spring, a temperature and pressure reducing water inlet is formed in the upper portion of the main flowing pipe, the temperature and pressure reducing cavity is installed in the main flowing pipe, the temperature and pressure reducing water inlet is communicated with the temperature and pressure reducing cavity, and the inner sealing face is arranged on the inner wall of the main flowing pipe. An inner sealing face is arranged on the outer wall of the temperature and pressure reduction cavity, an outer sealing face is arranged on the outer wall of the temperature and pressure reduction cavity and makes contact with the inner sealing face in a matched mode, a plurality of runners are arranged at the tail end of the temperature and pressure reduction cavity, the pressure control spring is installed between the outer wall of the tail end of the temperature and pressure reduction cavity and the inner wall of the flowing main pipe, and the initial state of the pressure control spring is a compressed state. The device is mainly used for reducing temperature and pressure.