152results about How to "Guaranteed thermal efficiency" patented technology

The invention relates to a method and a device for preparing biomass fuel from biomass materials. The method comprises the following steps: loading biomass materials in a gas generating chamber, and carrying out pyrolysis to generate mixed gas; cracking the tar to generate a combustible gas; filtering off fly-ash and residual tar in the combustible gas; carrying out gas-water separation to separate water; and deodorizing to obtain the biomass fuel. The device comprises the gas generating chamber (2) fixed on a pedestal (1), a material storage chamber (3) fixed on the upper side of the gas generating chamber (2), a cracking catalyst absorber (4) fixed on the upper side of the material storage chamber (3), a gas-water separator (5) communicated with the cracking catalyst absorber (4), and a deodorizing and gas storage box (6) communicated with the gas-water separator (5). The device and the method have the advantages that the device and the method can effectively remove tar, fly-ash, vapor, odor, etc. in the biomass fuel without contaminating the environment and can ensure the combustion heat efficiency of the biomass fuel, etc.

The invention discloses a gas water heater wind-pressure-resistance control system. The gas water heater wind-pressure-resistance control system comprises a main controller, a direct current speed governing fan, a fan control circuit, a rotating speed feedback circuit and a current feedback circuit; the control end of the main controller is connected with the input end of the fan control circuit, and the output end of the fan control circuit is connected with the control end of the direct current speed governing fan; the input end of the main controller is connected with the output end of the rotating speed feedback circuit and the output end of the current feedback circuit; and the input end of the rotating speed feedback circuit and the input end of the current feedback circuit are connected with the output end of the direct current speed governing fan. Through the gas water heater wind-pressure-resistance control system, backflow of a lot of waste gas and flame overflowing are effectively avoided, noise and electric leakage hidden danger are well controlled, accordingly, the product adaptation and comfort of a gas water heater are further improved, and the effect that combustion noise, fumes and heat efficiency reach the best state is ensured.

The invention discloses an SCRF system capable of actively controlling a catalytic environment. The SCRF system comprises a DOC, a urea spraying device, blades, a controller and an SCRF; the DOC is used for oxidizing NO into NO2, and furthermore the efficiency of converting NOx by the SCRF can be improved, and the regeneration of the SCRF can be facilitated; the urea spraying device is used for spraying urea into an exhaust pipe; the blades are arranged at the front end of the SCRF of the exhaust pipe of a diesel engine and are used for heating the urea sprayed by the urea spraying device so that urea crystallization can be avoided, and NH3 and exhaust gas can be fully mixed; the controller determines the heating temperature and the rotating speed of the blades according to the exhaust gas temperature in the exhaust pipe of the diesel engine as well as the gas temperature and the differential pressure in the SCRF system and actively controls the catalytic environment of the SCRF system; and the SCRF (namely an SCR catalysts coated DPF) carries out treatment on the NOx and PM in the exhaust gas of the diesel engine. The SCRF system has the beneficial effects that the temperature and the rotating speed of the blades can be controlled, heating and forced stirring are carried out on the mixed gas so that the uniformity of a mixture can be improved, and therefore the catalytic environment can be controlled, the generation of the catalytic reaction can be facilitated, and the generation of urea crystal substances at low temperature can be reduced.

The invention relates to a CO boiler having the dustproof function and the denitration function. The CO boiler having the dustproof function and the denitration function comprises a flue, a combustion chamber, steam drums, an evaporation section and an economizer section. The CO boiler further comprises an ammonia spraying and mixing mechanism and a dustproof denitration reactor. The ammonia spraying and mixing mechanism is arranged above the evaporation section or between the evaporation section and the denitration reactor. The dustproof denitration reactor is arranged between the evaporation section and the economizer section and comprises a mixed-smoke inlet section, a denitration section and a purified-smoke discharging section, wherein an ash removal section is arranged between the mixed-smoke inlet section and the denitration section, ash baffles are arranged in the ash removal section, an ash bin is arranged in the denitration section, the center line of the ash bin and the center line of the reactor coincide, and the lower end of the ash bin is connected with an ash discharging pipeline. According to the CO boiler having the dustproof function and the denitration function, the denitration reactor is arranged in the CO boiler, so that the utilization rate of smoke heat is increased; due to the fact that the ash removal section is arranged in the reactor, smoke dust of mixed smoke can be removed before the mixed smoke enters denitration units, catalyst hole channels are prevented from being blocked, and the denitration efficiency and the denitration effect are improved.

The invention discloses a combined heat supply device using a heat storage electric boiler and an air source heat pump and a heat supply method thereof. The combined heat supply device comprises the air source heat pump, the heat storage electric boiler, a water tank and a central control unit. The water tank communicates with the heat storage electric boiler and the air source heat pump. The heat storage electric boiler and the air source heat pump are further electrically connected with the central control unit. According to the combined heat supply device using the heat storage electric boiler and the air source heat pump and the heat supply method thereof, the central control unit is used for detecting the outdoor temperature of the air source heat pump and further judging and controlling whether the air source heat pump supplies heat to the water tank or the electric boiler supplies heat to the water tank, the air source heat pump is adopted when the outdoor temperature is high, and the heat storage electric boiler is adopted when the temperature is low; and the central control unit is provided with an environment and indoor temperature measuring device, the temperature of the water tank can be monitored to be used as judgment data, the defects are overcome by means of system combination, and therefore the overall heat supply is made more economical and reasonable, and the water outlet temperature can be guaranteed.

The invention relates to an antiscaling compound and a method for preventing and removing scales; the ingredients of the antiscaling compound comprises: 20-50 percent of natural zeolite, 25-20 percent of TiO, 10-40 percent of V2O5, 20-40 percent of SiO2, and 5-20 percent of NdFeB; the antiscaling compound is an ensemble of regular or irregular solid fine particles or an ensemble of solid porous particles; the average diameter of the fine particles of the antiscaling compound is 0.5-15mm; when the average diameter of the particles of the antiscaling compound is more than 15mm, porous particles are adopted, the pore diameter of the particle is more than 20mum and penetrates through the particle; the density of the antiscaling compound is 1.2-5g/cm<3>; the method for preventing and removing scales is that: the antiscaling compound is placed in water of a heating jacket of a water system freely for preventing and removing the scales in the water system, a filter screen is arranged at the outlet of the water jacket to prevent the antiscaling compound particles from being drained; or the antiscaling compound is placed in a volume body with meshes to form a water processor, the processor is placed nearby the heater and is arranged at the water charging port of the water system to processing charged water. The invention can process the scales efficiently for a long time without secondary pollution, the water treatment is safe, real-time on-line scale removal can be carried out, and the installation and usage are convenient and rapid.

In the casing of the gas rapid water heater is mounted a heat-exchanger with a water intake and a discharge tube. Under the heat-exchanger is set a combustion chamber, in which is mounted a burner connected with gas-distributing nozzles separately. A variable-speed fan is mounted under the combustion chamber. The gas-distributing nozzles are divided into at least two group of the gas-distributing nozzles is connected with the gas source separately through the air intake distributing valve. When used, by switching the air intake distributing valve, it is at least realized that the group with a smaller number of combustion nozzles is independent gas-fed for burning and the group with a larger number of combustion nozzles is also independent gas-fed for burning.

The invention discloses a CO boiler having the ash removal function. The CO boiler having the ash removal function comprises a first vertical flue, a horizontal flue and a second vertical flue, wherein ash baffles are arranged at the connection position between the first vertical flue and the horizontal flue, an ash storage bin is arranged at the position, flush with the lower edge of the lowest ash baffle, of the inner side of the first vertical flue, the ash baffles are of the structure that multiple layers of baffles are arranged in a staggered mode, each ash baffle is arranged in an inclined mode, and the outer end of each ash baffle is higher than the inner end of the ash baffle. According to the CO boiler having the ash removal function, the ash baffles arranged in the CO boiler can remove most of smoke dust contained in smoke and also play a role in rectifying the smoke, so that the smoke is rectified into the stable horizontal laminar flow state, the smoke evenly passes through steam drums, and the heat exchange efficiency of the boiler is high. The CO boiler having the ash removal function can solve the problem of equipment wear and abrasion caused by the smoke dust to the maximum extent, optimize the smoke processing technology, reduce energy consumption and reduce investment.

The invention discloses a cold accumulation type supercritical Brayton cycle power generation system and method. The system comprises a heat source, a supercritical Brayton cycle system, a cold accumulation system and a cooling system which sequentially communicate. According to the cold accumulation system and the adjusting method, the problem of heat dissipating of a thermal system under high temperature in the daytime in summer can be effectively solved; the temperature of the cold end of the system can be ensured; and the heat efficiency of the system can be ensured.

The invention relates to a supercritical carbon dioxide circulating coal-fired power generation system. The supercritical carbon dioxide circulating coal-fired power generation system comprises a hearth and a primary reheater, a membrane type wall is arranged on the inner wall of the hearth, a secondary superheater is arranged at the upper end of the hearth, a separator is connected to the outer end of the top of the hearth, the bottom end of the separator is connected with a return valve, one end of the bottom of the return valve is connected into the hearth, the other end of the bottom of the return valve is connected with an external heat exchanger, and an outlet of the external heat exchanger is connected to one end of the bottom of the hearth. The supercritical carbon dioxide circulating coal-fired power generation system has the beneficial effects that the supercritical carbon dioxide circulation is combined with a circulating fluidized bed boiler, the fuel flexibility of the circulating fluidized bed boiler is good, high-sulfur coal and low-calorific-value fuel can be efficiently utilized, the up-to-standard emission can be realized only through the desulfurization and low-temperature combustion nitrogen inhibiting in the furnace, the heat efficiency of the circulating fluidized bed boiler can achieve 90% or more, and compared with a pulverized coal fuel boiler, the circulating fluidized bed boiler has better economical advantages.

The invention discloses a low-cost double-effect solar air collector, which comprises a light-transmitting cover plate, a water tank and a capillary net and is characterized in that a heat preservation layer matched with a casing is arranged on the inner side of the casing, one surface of the casing is provided with an opening and the other surfaces of the casing are sealed. The light-transmitting cover plate is arranged on the surface of the casing with the opening. An air supply port is arranged at the position where the casing is matched with the upper portion of the back wall of the heat preservation layer. A heat absorption device is arranged on the lower portion of the air supply port, fixed on the ball wall of the casing through a support and composed of the capillary net uniformly arranged in a concrete layer and a heat collection surface of a selective absorbing coating arranged on one surface of the concrete layer close to the light-transmitting cover plate. An air outlet is arranged at the position where the casing at the back of the heat absorption device is matched with the back wall of the heat preservation layer. An inlet and an outlet of the capillary net are respectively connected with the water tank through pipelines. The low-cost double-effect solar air collector is low in manufacture price and long in service life, meets requirements of users to the maximum limit, and has wide social benefit.

The invention discloses a process method for preparing active calcium oxide by oxygen-enriched calcination. The process method the following steps of firstly crushing and sieving raw limestone to enable the particle size of the raw limestone to be 10-55 mm, conveying the raw limestone into a stock bin with a circular cross section, wherein the stock bin is arranged at an upper part of a vertical preheater; then, uniformly conveying the raw materials in the stock bin into the vertical preheater through a blanking pipe, and preheating the raw materials by using high-temperature kiln gas and cooling gas of a vertical cooler; then, feeding the materials into a rotary kiln, and importing oxygen-enriched air from a kiln head to perform oxygen-enriched calcination; and then, feeding the calcium oxide obtained after calcination and decomposition into the vertical cooler to be cooled by air, namely, obtaining the active calcium oxide. According to the process method disclosed by the invention,through the integration of the processes of graded preheating, oxygen-enriched calcination, graded cooling, dynamic temperature monitoring and the like, and the raw materials are preheated by combining the high-temperature kiln gas and the high-temperature gas discharged from the cooler, the heat transfer efficiency of the system is greatly improved, the activity of calcium oxide is obviously improved, the energy consumption is reduced, and the energy conservation and emission reduction are realized.

The technical scheme of the invention discloses a steam turbine set of a power station and a power generation method of the steam turbine set. The steam turbine set comprises a solar heat exchanger set, a steam brayton cycle and a steam rankine cycle, the solar heat exchanger set comprises a first superheater, a first reheater, a second superheater and a second reheater, the steam brayton cycle comprises a compressor, a heat regenerator, a high-pressure turbine, a middle heat exchanger and a first power generator, and the steam rankine cycle comprises a condensation water pump, a low-pressureheater, a deaerator, a water feeding pump, a high-pressure heater, a medium-pressure turbine, a low-pressure turbine, a condenser and a second generator. According to the steam turbine set, the steamturbine set organically combines the brayton cycle with the rankine cycle, on one hand, the heat efficiency of the rankine cycle can be remarkably improved, on the other hand, the working medium flowpassing through the high-pressure turbine is very large, the internal efficiency of the high-pressure turbine is improved, the heat efficiency of the brayton cycle is ensured, and finally the heat efficiency of the whole unit is remarkably improved.

The invention discloses a pretightening force PTC electric heater. The electric heater comprises a PTC component, electrodes are applied to the external of the PTC and then led out via power lines, and the PTC component and electrodes are wrapped in an insulating film and then compressed and mounted into an electric heater body formed in a square tube. The electric heater further comprises a frame, the electric heater body is placed in the frame, the frame is internally provided with a pressure plate which is placed between the frame and the electric heater body, the bottom of the pressure plate is provided with an elastic layer, and the elastic layer of the pressure plate compresses the electric heater body so that the square tube can generate elastic deformation to compress and fix the PTC component and the electrodes. According to the structure, the PTC component and the electrodes are always compressed and fixed in the using process via the elastic force of the pressure plate, when expansion with heat, contraction with cold or other problem occur, the square tube can generate elastic deformation to compress and fix the PTC component and electrodes, and the heat efficiency is ensured.

The invention provides a limiting structure for an S-shaped piping system, which is used for preventing pipes of the piping system from being deformed by longitudinal heating under the condition that S-shaped pipes are long in the horizontal direction, and ensuring the thermal efficiency of a boiler. The limiting structure comprises S-shaped pipes which are arranged horizontally, wherein the horizontal segments of the S-shaped pipes are long; the upper layers and the lower layers of the S-shaped pipes are hoisted on upper transverse beams through hoisting assemblies; and the hoisting assemblies are positioned at the middle positions of the horizontal segments of the S-shaped pipes. The limiting structure is characterized in that limiting blocks are arranged between the upper layers and the lower layers at the two ends of the horizontal segments of the S-shaped pipes at certain intervals; the upper sides of the limiting blocks are connected with upper layer S-shaped pipes by welding; and the lower sides of the limiting blocks are connected with lower layer S-shaped pipes by welding.

The invention relates to a temperature-retaining fresh air ventilator, and relates to an improvement on a fresh air ventilator structure. The temperature-retaining fresh air ventilator is low in production cost, simple in manufacturing technology and high in heat exchange efficiency. The temperature-retaining fresh air ventilator comprises a housing, and has the structural features that a honeycomb integrally molded is arranged in the housing; fresh air channels and exhaust air channels are arranged in the honeycomb at intervals; air inlets of the fresh air channels and the exhaust air channels are respectively formed in sides at two ends of the honeycomb; air outlets of the fresh air channels and the exhaust air channels are respectively formed in end faces at the two ends of the honeycomb.

The invention relates to an electric heating film inner pot, belonging to the technical field of electric cooking appliances, and comprising an open concave container formed by a pot wall and a pot bottom, which is characterized in that an electric heating film, an electrically connected electrode of the electric heating film connected with a power supply, and an insulation protecting layer on the external surface of the electric heating film are printed on the external surface of the concave container; and the electrically connected electrode of the electric heating film is arranged on the pot wall and connected with the power supply through an electric connector. In the electric heating film inner pot of the invention, the electric heating film is basically printed on the external surface of the whole pot body, thus the heating efficiency is high; the electrically connected electrode of the electric heating film is arranged on the side part and even the upper side part of the pot wall, so the worry of a user in cleaning is eliminated; and the complete machine has great advantages on the manufacturing cost and the appearance.

The invention discloses a thermal distributed tobacco curing barn. A plurality of groups of carbon crystal plates are arranged at the bottom and the top of a curing barn body; the upper side of the back surface of the curing barn body is provided with a number of dehumidifying fans, and a cold air door is arranged on the lower side of the back surface of the curing barn body; a first tobacco hanging frame is arranged in the middle of the curing barn body, a second tobacco hanging frame is arranged on the inner walls of the two sides of the curing barn body, and a temperature sensor, a humiditysensor and the carbon crystal plates are electrically connected with a control cabinet through wires. According to the invention, a traditional hot air chamber is cancelled; the plurality of groups of carbon crystal plates are arranged at the bottom and the top of the curing barn body; heat radiation and weak convection are transmitted to the outside; heat radiation is mainly carried out throughfar infrared radiation, after the far infrared radiation is absorbed by tobacco leaves, intense molecular resonance of moisture in the tobacco leaves is caused, the molecular resonance generates heat,the temperature in the tobacco leaves is promoted to rise, the purpose of synchronously drying the moisture in the tobacco leaves and surface moisture is achieved, the tobacco leaf baking efficiencyand quality are improved, and environmental pollution is avoided.

The invention relates to a gas stove as well as a burner cap and a furnace end of a burner for the gas stove and the burner. The burner cap (3) comprises an inner ring cover part (10), an outer ring cover part (20) and a middle ring cover part (30), wherein a first concave part (11) which is concave inwards is arranged at the bottom of the inner ring cover part (10), and a first air outlet (101) which communicates with the first concave part (11) is formed in the inner ring cover part (10); the bottom of the outer ring cover part (20) is concave inwards so as to form an outer ring concave part(21); and when the burner cap (3) is operated, the first concave part (11) is separated from the outer ring concave part (21), a second air outlet (102) is further formed in the inner ring cover part(10), a third air outlet (301) is formed in the middle ring cover part (30), and the second air outlet (102) and the third air outlet (301) respectively communicate with the outer ring concave part (21). According to the gas stove as well as the burner cap and the furnace end of the burner for the gas stove and the burner, the small fire power is low enough, and CO is reduced.