46results about How to "Improve working ability" patented technology

The invention relates to the technical field of multi-energy complementary power generation, and discloses an industrial steam supply peak shaving system and method coupling fused salt heat storage and solar energy, and the industrial steam supply peak shaving system comprises a coal-fired power generation system and an industrial steam supply system; in the heat storage mode, the boiler, the steam cooler and the condenser are sequentially connected; in the heat release mode, the high-pressure heater, the primary feed water heater and the low-pressure cylinder are sequentially connected through pipelines; and the feed pump, the secondary feed water heater and the boiler are connected in sequence. In the low ebb of the electrical load, solar energy is used for heating fused salt to store heat, and part of high-temperature steam is extracted from steam-water circulation of the improved coal-fired power generation system to store the heat in a heat storage device and does not enter a steam turbine for power generation; the power load output is adjusted by adjusting the thermal load output of the thermodynamic system in the power generation process, and load decoupling of the boiler and the steam turbine is achieved. And in the electrical load peak, the stored heat energy is released back to steam-water circulation, and the electrical load of the coal-fired power generation system is increased.

The multi-wing centrifugal impeller comprises a wing blade assembly, a first blade fixing part, a second blade fixing part and a blade, the first blade fixing part and the second blade fixing part are arranged in parallel, the blade is arranged between the first blade fixing part and the second blade fixing part, and the two ends of the blade are connected to the first blade fixing part and the second blade fixing part respectively; the wing blade assembly comprises an annular wing blade support, an inner wheel disc and a plurality of wing blades arranged between the annular wing blade support and the inner wheel disc, the two ends of each wing blade are connected to the inner edge of the annular wing blade support and the outer edge of the inner wheel disc respectively, and each wing blade is a curved plate with the middle bent in the direction where the first blade fixing part is located. A plurality of blade fixing holes are formed in the annular wing blade support, the blades penetrate through the blade fixing holes, and the blades are arranged on the annular wing blade support through the blade fixing holes. And therefore, the flow of the multi-wing centrifugal impeller and the working capacity of the front side of the multi-wing centrifugal impeller are increased, and the performance of the multi-wing centrifugal impeller is improved.

The invention provides a novel renewable energy hydrogen energy storage system and an operation method thereof. The hydrogen energy storage system comprises an energy storage cycle unit, an energy release cycle unit, a heat energy utilization unit and the like. The energy storage cycle and the energy release cycle of the system are mutually independent loops, the fuel cell and the gas turbine are utilized in the hydrogen energy storage system to supplement the generating capacity, cooling water is used as a heat exchange medium, heat generated in the operation process of the system is stored, and the energy storage cycle and the energy release cycle of the system are mutually independent loops. And the working capacity of high-pressure hydrogen in front of the expansion machine is improved by utilizing tail gas of the gas turbine and hot water generated by utilizing waste heat of equipment, and consumed power in the hydrogen compression process is recycled by utilizing the hydrogen expansion machine. According to the hydrogen energy storage system, conversion of electric energy, hydrogen energy and heat energy is achieved through multi-stage recovery and utilization of heat energy, the working state of the valve can be adjusted according to the load requirement of a power grid, the operation methods of the hydrogen fuel cell and the gas turbine are switched, and the response flexibility, the energy release power density and the energy circulation efficiency of the system are improved.

The invention provides a novel compressed air and hydrogen energy storage coupling system and a working method thereof. The system comprises an air and hydrogen coupled energy storage circulating system, an air and hydrogen coupled energy release circulating system and a waste heat multi-stage recycling heat storage circulating system. The energy storage cycle of the coupling system converts electric energy into hydrogen energy and pressure energy of air for storage, the energy release cycle converts the pressure energy and the hydrogen energy of the air into electric energy for release, the heat storage cycle system recycles and utilizes heat in the system operation process in a multi-stage mode through heat conduction oil and cooling water, and tight coupling of compressed air energy storage and hydrogen energy storage is achieved. According to the coupling system, cooling water and heat conduction oil are used as heat exchange media, heat energy generated in the energy storage process of the system is recycled in a multi-stage mode, the stored heat energy is used for heating air and hydrogen in the energy release process, and therefore the power capability of high-pressure air and hydrogen is improved. The system mixes the exhaust gas of the air expansion machine with oxygen, and the mixed gas is depressurized by the pressure stabilizing valve and then supplied to the hydrogen fuel cell, so that the oxygen concentration in the mixed gas is increased, and the power generation performance of the hydrogen fuel cell can be effectively improved.

The invention relates to the technical field of compressed air energy storage, in particular to an industrial waste heat coupling isothermal non-afterburning compressed air energy storage system which comprises an isothermal compression energy storage module, an isothermal compression heat recovery module, an industrial waste heat conversion module and an expansion power generation module. The isothermal compression energy storage module achieves multi-section compression of air and stores compressed air through electric energy in the valley period, and the isothermal compression heat recovery module is used for collecting compression heat generated by the isothermal compression energy storage module during multi-section compression of the air. The expansion power generation module receives the industrial waste heat stored by the industrial waste heat conversion module and is used for compressed gas expansion power generation; the isothermal compressor technology is adopted for compressing air, the compressed air energy storage efficiency is improved, the compression power consumption is reduced, meanwhile, industrial waste heat is fully utilized for heating the compressed air in the expansion stage, the problem that compression heat is insufficient in the isothermal compression process is solved, and the energy storage efficiency and the energy-saving effect are higher.

According to the active thermal protection and thermal power generation integrated system based on the supercritical Brayton cycle, the two active cooling modes of convection cooling and sweating cooling are combined, and the energy utilization rate is increased; according to the gradient cooling structure of the nose cone front edge of the high-speed aircraft, the nose cone front edge is divided into a top end section, a middle section and a low end section, heat flows of the three sections are sequentially decreased, and porous metal matrix layers are arranged on the three sections of the nose cone front edge in a gradient mode according to the porosity; a two-stage regenerative-shunt recompression closed Brayton cycle power configuration obtained through calculation and optimization is adopted, and the characteristics of high energy recovery efficiency and compact system structure of the closed Brayton cycle are achieved; and a wing rib array is arranged in the heat exchange channel, so that a larger heat exchange surface area is provided.

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.

The utility model relates to the technical field of boilers, in particular to a steam boiler with a superheater, which comprises a boiler body, a corrugated boiler furnace arranged inside the boiler body, a burner mounted at one end of the boiler body, a reversal chamber connected to one end of the corrugated boiler furnace, a threaded smoke tube connected to the upper portion of the reversal chamber, and a steam outlet connected to the lower portion of the boiler body. One end of the threaded smoke pipe is connected with a front smoke box, a superheater and a condenser are installed on the top of the boiler body, and one side of the superheater is connected to the front smoke box through a connecting flue. According to the steam boiler with the superheater, through the arrangement of the corrugated boiler furnace and the threaded smoke pipe, the residence time of smoke in the boiler is prolonged, the heat exchange area of the smoke in the boiler is increased, heat can be more sufficiently transmitted to water, and the heat energy utilization rate is increased. In addition, due to the introduction of the superheater, the temperature and the pressure of the steam are further improved, so that the steam has higher heat energy and power capability, and the requirements of various industrial and living fields on high-quality steam are met.

The invention discloses a preparation method of a tough polyrotaxane hydrogel humidity brake and the prepared tough polyrotaxane hydrogel humidity brake. The preparation method of the tough polyrotaxane hydrogel humidity brake comprises the steps that under the conditions of a photoinitiator and ultraviolet irradiation, the tough polyrotaxane hydrogel humidity brake is prepared; acrylic acid as a monomer, vinyl polyrotaxane as a cross-linking agent and vinyl triethoxy siloxane as a reinforcing agent are subjected to a polymerization reaction to obtain the tough polyrotaxane hydrogel humidity brake, and the tough polyrotaxane hydrogel humidity brake shows a super-shrinkage behavior when meeting moisture, so that PHFB has the capability of being used as the humidity brake and can lift an object under the driving of moisture. The PHFB tough polyrotaxane hydrogel humidity brake is large in mechanical strength, high in toughness, high in contractibility and high in power capability, and can be used as a powerful fiber humidity brake.

The invention provides a moon base cross-moon-night multi-energy supply system based on carbon, hydrogen and oxygen element circulation, and belongs to the field of lunar base cold, heat and electric energy guarantee systems. The problem that the task requirement of an existing lunar base for an energy system, except for electric energy, cannot be met by cold energy and heat energy is solved. The system comprises a chemical heat storage subsystem, a gas turbine subsystem and an adsorption type refrigeration cycle subsystem, the chemical heat storage subsystem absorbs solar energy in the moon day, converts heat energy into chemical energy and stores the chemical energy, the gas turbine subsystem outputs electric energy through a turbine, and the adsorption type refrigeration cycle subsystem outputs cold energy through waste heat of the gas turbine subsystem. Cross-moon-night supply of cold and hot electric energy of the lunar base is achieved, meanwhile, the grade of energy is improved through the chemical heat storage technology, and the output capacity of power generation equipment is enhanced.

The embodiment of the invention relates to the field of fans, and provides a centrifugal fan and electronic equipment. An impeller of the centrifugal fan is of a structure comprising M groups of blades, each group of blades comprises a plurality of blades with different lengths, the inner diameters of the plurality of blades in each group of blades are the same, and when the impeller comprises a plurality of groups of blades (namely M is greater than 1), the arrangement modes of the groups of blades are the same. Therefore, the BPF of the impeller can be reduced, the weighting value corresponding to the BPF can be adjusted to be a fractional weighting value, the sound pressure level of the reduced BPF is also reduced, and the total noise of the centrifugal fan is also reduced.

The multistage compressed air energy storage system comprises a salt cavern air storage chamber, the inlet end of the salt cavern air storage chamber is connected with a multistage compression device and a first heat exchanger, and the outlet end of the salt cavern air storage chamber is connected with a multistage expansion power generation device and a second heat exchange device. The heat storage liquid outlet end of the first heat exchanger is connected to the heat storage liquid inlet end of the first heat exchanger through the high-temperature tank, the second heat exchange device and the low-temperature tank; the salt cavern gas storage chamber and the high-temperature tank are respectively connected with a pressure potential energy-heat energy coupling conversion device based on a Ponghua material, and the pressure potential energy-heat energy coupling conversion device is used for releasing heat energy when the pressure is increased and absorbing the heat energy when the pressure is reduced. When the compressed air energy storage system needs to store energy across months and even seasons, excess compressed air potential energy is converted into heat energy through the pressure-heat conversion device, so that potential energy output is improved, and the efficiency and economical efficiency of the system are improved.

The utility model discloses a centrifugal impeller and fan structure capable of simultaneously reducing axial force and leakage rate, the centrifugal impeller comprises a wheel disc, a plurality of main blades are uniformly arranged on the front surface of the wheel disc, and a plurality of binary auxiliary blades are uniformly arranged on the back surface of the wheel disc. The rotating directions of the main blades and the binary auxiliary blades are arranged in the pressure increasing direction, the structure that the binary auxiliary blades are arranged on the back face of the impeller is adopted, when the impeller rotates, the auxiliary blades drive air on the back face of the wheel disc to do centrifugal motion, and the vacuum effect is formed on the back face of the wheel disc. On one hand, the air quantity leaked from the shaft end sealing structure by the impeller can be greatly reduced, and on the other hand, the axial force is greatly reduced, the load of a thrust bearing is reduced, and the mechanical loss is reduced; according to the two advantages, the overall efficiency of the compressor is improved, and the operation cost of a unit is saved.

The present invention discloses a compressed air energy storage system with an air storage tank heat recovery system and a control method thereof, including a compressed air storage tank, a cold storage tank and a heat storage tank, wherein the cold storage tank outlet is connected to the temperature drop control valve inlet, the heat storage tank outlet is connected to the temperature rise control valve inlet, the temperature drop control valve outlet intersects with the temperature rise control valve outlet, and is connected to the heat exchanger inlet of the compressed air storage tank, and the heat exchanger outlet of the compressed air storage tank is divided into two paths, one path is connected to the high-temperature outlet valve inlet, and the high-temperature outlet valve outlet is connected to the heat storage tank inlet; the other path is connected to the low-temperature outlet valve inlet, and the low-temperature outlet valve outlet is connected to the cold storage tank inlet. The present invention effectively improves the energy storage capacity of the compressed air energy storage in the compressed air energy storage stage; and effectively improves the work-doing capacity of the compressed air energy storage in the energy release stage, thereby improving the electric-to-electric conversion efficiency of the compressed air energy storage as a whole.

The plate-type half-wing blade impeller of the ventilation axial flow fan comprises a hub and a plurality of blades, and a central axis z is arranged at the axis of the hub; blade roots of the multiple blades are welded to the periphery of the hub around the central axis z, and an impeller structure is formed. Any blade is provided with a suction wall surface and a pressure wall surface, the suction wall surface is provided with a bulge structure and forms a suction surface bulge, the pressure wall surface is internally provided with a pressure surface inner wall, and the pressure wall surface is also provided with a pressure surface wing-shaped outer wall. The technical problems that in the prior art, a blade in an axial flow fan is low in operation efficiency and serious in energy loss, and the working efficiency of the blade is invisibly reduced are solved.

The present invention provides a high-air-volume and low-noise fan blade, a fan and a design method for the blade, and the scheme adopted is: the blade includes a blade body, the blade body is formed by stacking large-angle blade profiles, the two fan surfaces on the blade body are respectively the suction surface and the pressure surface, the suction surface and the pressure surface have different curvatures, the starting position of fluid separation on the suction surface is the separation starting point, the separation starting point is located in the middle and rear part of the suction surface, at least two rows of small holes are opened on the blade body, and the small holes are all located upstream of the separation starting point, and the small holes penetrate the pressure surface and the suction surface. The fan includes a fan seat and a driving device, the blade body has multiple, and the multiple blade bodies are evenly distributed on the fan seat, and the fan seat is connected to the driving device. By adopting a blade design method combining a large-angle blade profile and a perforated blade, the aerodynamic noise generated by the fan can be effectively reduced, and the fan power consumption can be reduced while obtaining a higher air volume and air pressure.

The invention relates to a low-temperature waste heat power generation system based on the heat permeation principle and concentration difference energy utilization, and belongs to the technical field of energy and waste heat and residual pressure recycling. The system consists of two mutually coupled cycles, namely a permeation side cold water cycle and a concentration difference energy power cycle; the permeation side cold water circulation comprises a hydrophobic membrane assembly, a hydraulic turbine, a cooling tower, a cooler, a cold water pressure pump and a cooling water pump; the concentration difference energy power cycle comprises a gas-liquid separator, an ejector, an absorption evaporator, a steam turbine, a water supply preheater I, a dilute solution pump, a water supply preheater II, a three-way regulating valve, a waste heat heater, a hydrophobic membrane assembly and a water supply pump. The heat permeation effect of the solution and the heat release effect of the concentrated solution in the absorption and dilution process are fully utilized, available energy of low-temperature waste heat is efficiently recycled, high-grade mechanical energy or electric energy is produced, and therefore efficient recycling of the low-temperature waste heat is achieved, and the efficiency of a waste heat power generation system is improved to the maximum extent.

The application discloses a fan blade and a fan. The blade is divided into multiple different structural sections from a blade root to a blade tip. Different structural sections have different airfoils. The airfoil cross sections of different structural sections from the blade root to the blade tip are the same as the airfoil cross sections taken in the wingspan direction. The blade is segmented in the length direction. Different sections of the blade are segmented according to different airfoils of owls. The bionics is simplified. The pressure difference between the upper surface and the lower surface of the fan blade is increased. The aerodynamic noise is reduced by using the airfoil principle of the owl. The structural sections have the same airfoil structure as the corresponding part of the owl airfoil. The structural sections have the same noise reduction effect as the part of the owl airfoil. The noise reduction and the cost are comprehensively optimized. The blade has good structural strength.

A double-air-inlet centrifugal fan comprises a volute and an impeller rotationally arranged in the volute, a first air inlet, a second air inlet and an air outlet are formed in a front cover plate and a rear cover plate of the volute respectively in the lateral direction, and the double-air-inlet centrifugal fan is characterized in that a center shaft is arranged in the volute; the front end and the rear end of the central shaft are respectively connected to a front cover plate and a rear cover plate of the volute; the impeller comprises an outer rotor, a blade assembly, a first connecting flow guide face and a second connecting flow guide face. The first connecting flow guide face and the second connecting flow guide face are arranged between the impeller assembly and the outer rotor, in this way, after double-face air inlet, turbulent vortexes formed at the air inlets in the two ends of the impeller can be eliminated, the working capacity of the impeller is improved, and noise caused by deterioration of the turbulent vortexes at the inlet of the impeller is further lowered.

The utility model discloses a molten polyamide hot melt adhesive heat preservation filtering device, and relates to the technical field of hot melt adhesives, the molten polyamide hot melt adhesive heat preservation filtering device comprises a filtering barrel, a rotating motor is fixed on the outer wall of the bottom of the filtering barrel, a transmission rod is inserted into the inner wall of the bottom of the filtering barrel, and a plurality of groups of clamping blocks are fixed on the outer wall of the transmission rod; the multiple sets of clamping blocks are evenly distributed on the outer wall of the transmission rod, a glue storage barrel is inserted into the inner wall of the filter barrel, multiple sets of clamping grooves are formed in the outer wall of the bottom of the glue storage barrel and evenly distributed in the outer wall of the bottom of the glue storage barrel, and multiple sets of filter holes are formed in the outer wall of the glue storage barrel. The multiple sets of filtering holes are evenly distributed in the outer wall of the glue storage barrel, a discharging opening is formed in the outer wall of the side face of the filtering barrel, and an auxiliary funnel is connected to the outer wall of the top of the filtering barrel in an inserted mode. The utility model can be provided.

The invention discloses a distributed fan-shaped reaction system as well as a use method and application thereof. The system comprises a cooling medium storage tank, a fan-shaped reactor, an electric control valve, a gas storage tank, a discharge valve, an electromagnetic valve and a thruster, the cooling medium storage tank is filled with a high-density liquid cooling working medium; the fan-shaped reactor is filled with a catalyst; the cooling medium storage tank, the fan-shaped reactor, the electric control valve and the gas storage tank are sequentially connected, the gas storage tank is provided with a first valve port and a second valve port, the first valve port is connected with the thruster through the electromagnetic valve, and the second valve port is communicated with the outside through the release valve. The distributed fan-shaped reaction system can be used for an active thermal protection system of a high-speed aircraft, the reactor can effectively absorb aerodynamic heat, the effective heat sink of a high-density liquid cooling working medium reaches 6.0 MJ / kg or above, the aerodynamic heat management capacity of the system is effectively improved, meanwhile, harmful aerodynamic heat is utilized to generate high-temperature and high-pressure small molecule gas to do work, the specific impulse reaches 150 s, and the service life of the system is prolonged. And heat-work conversion is realized.

The utility model discloses a compressed air energy storage system with electric auxiliary heating, which comprises an energy storage module, a corresponding compression module and a corresponding power generation module, the energy storage module comprises a gas storage container, a low-temperature storage tank, a high-temperature storage tank and an electric heating device, wherein the low-temperature storage tank and the high-temperature storage tank are matched with the gas storage container, and the electric heating device is arranged in the high-temperature storage tank. The compression module comprises a low-pressure compressor, a first heat exchanger, a high-pressure compressor and a second heat exchanger; the power generation module comprises a third heat exchanger, a high-pressure expansion machine, a fourth heat exchanger and a low-pressure expansion machine. According to the utility model, electricity and trough electricity which cannot be connected to the internet, such as abandoned wind and abandoned light, are utilized, energy is stored in the form of heat and compressed gas through the heat exchanger and the compressor, and energy is released in the expansion machine, so that the storage and conversion of electric energy are realized.

The present invention provides an air duct assembly and an air conditioner having the same, wherein the air conditioner comprises a shell and an air duct assembly arranged in the shell, the air duct assembly is the above-mentioned air duct assembly; the air duct assembly comprises a shell, a first-level mixed flow fan blade and a second-level mixed flow fan blade, the shell has a flow cavity and a first air port and a second air port connected to the flow cavity, the flow cavity includes a first-level flow sub-cavity and a second-level flow sub-cavity connected in the direction from the first air port to the second air port; the first-level mixed flow fan blade is rotatably arranged in the first-level flow sub-cavity; the second-level mixed flow fan blade is rotatably arranged in the second-level flow sub-cavity. The present invention solves the problem that the air duct assembly of the air conditioner in the prior art has a poor effect on the air flow in the flow cavity, which results in a small air volume at the air outlet of the air duct assembly, and fails to achieve the preset cooling or heating effect of the air conditioner, reduces the practicality of the air conditioner, and thus affects the user's good experience.

The invention discloses a deep peak regulation system provided with a steam ejector and a heat storage device and an operation method. The deep peak regulation system comprises a coal-fired power generation system, a heat storage loop and a steam ejector loop. When load rising wet state is converted into dry state, recirculating water separated by a boiler steam-water separator is heated through fused salt and mixed with main steam, meanwhile, high-pressure heater feed water is bypassed, steam extraction flow of a steam turbine is reduced, power capability of the steam turbine is rapidly increased, and the temperature of the feed water is reduced due to reduction of the recirculating water and the high-pressure heater steam extraction. The heat storage loop and the steam ejector loop are used for storing energy, water is heated, the enthalpy of an inlet of the water cooling wall is reduced, and rapid state transition is achieved; and when the load reduction dry state is converted into the wet state, the molten salt is heated by bypass reheat steam, the steam is recycled into the steam storage tank, and the output power of the unit is rapidly reduced. Through steam-water working medium circulation path reconstruction and fused salt / steam and other multi-medium energy storage cross-space-time regulation and control, ultra-low load dry-wet rapid state transition of the coal-fired unit is achieved, and the deep peak regulation capacity of the unit is improved.

This invention provides a tandemly connected aerial ladder module and firefighting machinery. The tandemly connected aerial ladder module includes: a frame, a traveling device, a support assembly, a tandem assembly, and a lifting assembly. The traveling device is connected to the frame. The support assembly is connected to the frame. The support assembly can support the ground. The tandem assembly is used to connect multiple tandemly connected aerial ladder modules in series. The lifting assembly is connected to the frame. With this structural arrangement, the aerial ladder module can perform rescue work independently. Alternatively, multiple tandemly connected aerial ladder modules can be connected in series by the tandem assembly to allow multiple tandemly connected aerial ladder modules to work together and increase the rescue working range. Thus, the tandemly connected aerial ladder module can achieve the effect of increasing its working range. At the same time, the tandemly connected aerial ladder module is suitable for both small and large rescue scenes, possessing high versatility and flexibility.

The invention discloses an outdoor unit of an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem that a two-stage centrifugal compressor in the prior art can cause reduction of power capability of a two-stage impeller. The air conditioner outdoor unit comprises a multi-stage compressor, the multi-stage compressor comprises a first-stage volute, a first-stage impeller, a second-stage compression assembly, a communicating pipe and a rotation eliminating structure, and the first-stage impeller is arranged in the first-stage volute; the first-stage volute and the second-stage compression assembly are communicated through the communicating pipe. The racemization structure comprises a supporting shaft and racemization blades; the plurality of racemization blades are arranged at intervals in the circumferential direction of the supporting shaft, and each racemization blade is provided with a connecting surface connected with the circumferential wall of the supporting shaft; the cross section is located on the connecting face and far away from the supporting shaft. The cross section comprises a datum line, a center line, a first sideline and a second sideline; the datum line is located on the side, close to the first sideline, of the center line and parallel to the axis of the supporting shaft. And the distance between the center line and the datum line is gradually reduced in the flowing direction of the refrigerant. The air conditioner outdoor unit is used for adjusting the temperature of air.

The invention discloses an oxygen-enriched turbine engine and a thermodynamic cycle method of the oxygen-enriched turbine engine. Comprising an oxygen-enriched gas generator, a turbine, a gas compressor, an oxygen-enriched gas auxiliary atomization injector and an active cooling combustion chamber, the oxygen-enriched gas generator comprises an oxidizing agent inlet, an oxidizing agent liquid collecting cavity, a catalytic bed, a reaction cavity located on the downstream of the catalytic bed, a fuel inlet and an oxygen-enriched gas outlet, and the fuel inlet and the oxygen-enriched gas outlet are located in the side wall face of the reaction cavity. A valve located on a fuel supply pipeline controls on-off of fuel, and two working modes of the oxygen-enriched fuel gas generator can be obtained, namely an oxidizing agent and fuel double-component oxygen-enriched combustion working mode and an oxidizing agent single-component catalytic decomposition working mode. The problems that rich oil circulation combined power is prone to coking and carbon deposition, combustion is not easy to organize, and the power capability of a turbine is limited are solved.

The present invention relates to the field of engine technology, a piston assembly for a new engine and a new engine, the assembly includes a piston and a variable hollow valve, a cross support frame is provided in the middle of the piston, a valve through hole is provided in the middle of the cross support frame, a plurality of matching protrusions are provided on the cross support frame, a valve seat is provided on the piston between the matching ends with the variable hollow valve, the variable hollow valve includes a hollow valve and a valve stem, a first annular groove is provided in the middle of the hollow valve, a plurality of first air release through holes are provided in the first annular groove, a second annular groove is provided in the middle of the first annular groove, and a plurality of matching through holes are provided in the second annular groove. A plurality of matching protrusions are provided with a center valve seat through a plurality of matching through holes, and a hollow sealing ring is also provided on the first annular groove. The advantages of this patent are that it facilitates cleaner exhaust, reduces mechanical friction, time-controlled intake valve, variable compression ratio, improves thermal efficiency and power, and uses two-stroke linear internal combustion engine exhaust Atkinson technology.

The invention provides a composite oxidant type emulsified granular ammonium nitrate fuel oil explosive and a preparation method thereof, and belongs to the technical field of ammonium nitrate fuel oil explosives, the composite oxidant type emulsified granular ammonium nitrate fuel oil explosive comprises the following components by weight: 80-94% of a composite oxidant type porous granular ammonium nitrate fuel oil explosive, 5-15% of an emulsion matrix, and 1-5% of an additive; the composite oxidant type porous granular ammonium nitrate fuel oil explosive consists of the following components in percentage by weight: 80-90% of porous granular ammonium nitrate, 5-15% of calcium nitrate and 5-6% of liquid diesel oil. According to the composite oxidizing agent type emulsified granular ammonium nitrate fuel oil explosive, safe and environment-friendly porous granular ammonium nitrate and calcium nitrate are used as the composite oxidizing agent, and the porous granular ammonium nitrate is replaced by 5-15% of calcium nitrate, and the composite oxidizing agent is used for replacing a single porous granular ammonium nitrate oxidizing agent; the production cost of the prepared composite oxidant type emulsified granular ammonium nitrate fuel oil explosive product can be reduced under the condition that the performance is not attenuated, meanwhile, toxic gas generated after explosion is reduced, the density of the product is increased, and the working capacity of the product is enhanced.

The application provides a peak shaving power generation system coupling molten salt heat storage and steam turbine supplementary steam, and relates to the technical field of thermal engineering. The system comprises a low-temperature molten salt tank, a molten salt heater, a high-temperature molten salt tank, a molten salt steam-water heat exchanger, a gas boiler, a steam turbine and a feedwater system. The molten salt heater receives low-temperature molten salt pumped into the low-temperature molten salt tank by a low-temperature molten salt pump during the low electricity consumption period, and heats the low-temperature molten salt by the heat of main steam provided by the gas boiler. The high-temperature molten salt tank receives and stores the high-temperature molten salt obtained by heating. The molten salt steam-water heat exchanger receives high-temperature molten salt pumped into the high-temperature molten salt tank by a high-temperature molten salt pump during the high electricity consumption period, and transfers the heat energy of the high-temperature molten salt to high-pressure feedwater from the feedwater system to generate superheated steam. Part of the superheated steam is sent into a main steam main pipe connected with the gas boiler. The application can effectively improve the steam turbine power generation efficiency, realizes efficient utilization of heat energy and flexible adjustment of power grid load.