43results about How to "Improve waste heat utilization effect" patented technology

The invention discloses a differential motion airtight feeding electric furnace smelting device and a feeding method thereof. The device comprises an electric furnace and a charging device, wherein the charging device comprises a cold receiving conveying trough and a heat conveying trough; the lower sides of the cold receiving conveying trough and the heat conveying trough are provided with an independently-controlled excitation device respectively; the outlet of the cold receiving conveying trough is provided with a conveying throat opening which is extended into the heat conveying trough; and the distance between the conveying throat opening and the bottom of the heat conveying trough is greater than or equal to the depth of the heat conveying trough. By the feeding method, shock excitation at different frequencies is applied to the two conveying troughs to realize the differential motion conveying of raw materials, so that a thicker material layer can be laid on the cold receiving conveying trough, and the material loading speed is increased; simultaneously, a shorter cold receiving conveying trough and a shorter material-conveying bottom elongated slot can be designed, so that the device and the method make project implementation convenient. In addition, due to the adoption of the throat opening and a sealed door structure, the possibility of material blocking and the air leakage rate are greatly reduced, and the device has low heat loss and a good dedusting effect, and is high-efficient, energy-saving and environment-friendly during smelting.

The invention discloses an exhaust gas absorption device for aluminum alloy die casting product production, and concretely relates to the field of exhaust gas treatment. The device comprises a gas inlet tube, one end of the gas inlet tube is connected to the bottom of a water storage tank, a heat exchange tube is arranged at the end part, corresponding to the gas inlet tube, in the water storage tank, one end of the heat exchange tube is connected to the outer sidewall of the middle part of the water storage tank and is connected with a first gas delivery tube, one end of the first gas delivery tube is connected to the top of a spray tank, the front surface of the water storage tank is provided with a control switch, a water drawing tube is inserted into the water storage tank, one end ofthe water drawing tube is connected to the water inlet end of a first water pump, the water outlet end of the first water pump is connected with a first water outlet tube, and a second water pump is arranged at one side of the bottom of the water storage tank. The device improves the waste heat utilization effect of exhaust gas during use, and a part of the heated water is used for circulating spray treatment to improve the adhesion strength of harmful substances and particulate matters in the exhaust gas, so the purification effect on the exhaust gas is improved.

The invention provides a power station boiler residual heat utilization system capable of achieving intelligent control for fan frequency. The system comprises a boiler, a main flue, a bypass flue, a heat exchanger, a flue temperature sensor and a central controller, wherein smoke generated by the boiler enters into the heat exchanger through an inlet of the bypass flue; smoke subjected to heat exchange flows into the main flue via the outlet of the bypass flue and then is discharged; a main flue fan is arranged on the main flue; a bypass flue fan is arranged on the bypass flue; the flue temperature sensor measures the temperature of discharged smoke; the central controller is in data connection with the temperature sensor, the main flue fan and the bypass flue fan; the central controller automatically adjusts the frequency of the main flue fan and the bypass flue fan according to the exhaust gas temperature measured by the temperature sensor. According to the power station boiler residual heat utilization system, the exhaust gas temperature of smoke is automatically controlled through intelligently controlling fan frequency to adjust flow of smoke participating in residual heat utilization and heat exchange, so that low-temperature corrosion is avoided, and intelligentized adjustment of the system is realized.

The invention provides a smoke inlet device, including an adjustable smoke baffle, a smoke dusting baffle, a shell, a dusting pipeline, and a smoke inlet pipeline, wherein the smoke inlet pipeline is arranged at a lower end, a smoke outlet end is arranged at an upper end, the dusting pipeline is arranged in the shell for housing and collecting the dust in the smoke, a regular dusting mechanism is connected to the inferior of the dusting pipeline; the shell is composed of a first vertical segment at the lower end, an outward incline segment connected to the first vertical segment, a second vertical segment connected to the incline segment and a horizontal segment arranged at top and connected to the second vertical segment, the adjustable smoke baffle is connected to the other end portion of the horizontal segment and adjusts the angle around the other end portion of the horizontal segment; the first vertical segment forms a smoke inlet, the dusting pipeline goes deep into the shell from the smoke inlet, the smoke dusting baffle is connected to the upper end portion of the dusting pipeline arranged in the shell; in the vertical direction, and the upper end and the lower end of the smoke dusting baffle are arranged between the upper end and the lower end of the second vertical segment. The repeatedly efficient dust removal of smoke can be realized, the dust stratification problem of devices in the flue is reduced to a large extent, and the heat exchange efficiency after the smoke enters a heat exchanger is improved.

A continuous aluminum melting furnace with a porous spray pipe heat exchanger, comprising a furnace body, combustion nozzles, a smoke pipeline and a heat exchanger. The heat exchanger comprises a smoke channel and heat exchange cylinders, wherein each of the heat exchange cylinders comprises a head end, a tail end, and a porous spray pipe in at least one of the cylinders. The porous spray pipe comprises a closed end and a pipe body, with several air spray holes provided on a peripheral wall of the pipe body so that cold air entering the at least one heat exchange cylinder is sprayed to an inner wall of the cylinder so as to exchange heat with high-temperature smoke which flows through an outer wall of the cylinder, thus keeping the temperature of the cylinder lower than the rated tolerant temperature of the material from which the cylinder is made.

The invention discloses a non-design working condition operation method of a compressed air energy storage system. The method comprises the following steps of: determining an operation range of a compression subsystem according to a system operation environment temperature, and selecting an operation mode of a heat storage subsystem; setting an air cooler hot end outlet temperature difference, and establishing an energy storage stage component parameter regulation and control model; determining operation parameters of an expansion subsystem, and establishing an energy release stage component parameter regulation and control model; and establishing a full-cycle efficiency optimal operation model of the system. The influence of environment state change on main working parts of the compressed air energy storage system is comprehensively considered, the parameter operation range of the system under the variable working conditions is determined, and the operation stability is improved. The operation mode of the heat storage subsystem is selected according to the environment temperature, operation parameters are optimized, the energy conversion and waste heat utilization effects are effectively improved, energy efficiency maximization of the system within the whole environment temperature range is achieved, the whole-period efficiency higher than the design working condition is obtained, and the operation stability and the variable working condition performance of the compressed air energy storage system under the variable working condition are improved.

The invention provides a steam and water separator, including a shell, a separation tube, a steam inlet pipe, a circle segment orifice plate 1, a circle segment orifice plate 2, a porous orifice plate, a connection tube and a steam outlet tube. The steam and water separator is vertically arranged. The steam inlet tube and the steam outlet tube of the steam and water separator are respectively arranged at the bottom and the top positions of the separator. A water outlet tube is arranged at the bottom side of the shell. The separation tube is divided into two segments. The two segments are connected through a middle connection tube. An exit end of the steam inlet tube and an exit end of the steam outlet tube are respectively inserted in the two segments of the separator. The circle segment orifice plate 1 and the circle segment orifice plate 2 are arranged at the steam inlet end and the outlet end in the connection tube. Orifices of the circle segment orifice plates are arranged at different sides of the connection tube. The porous orifice is arranged at a second segment in the separation tube at the steam outlet end. Small holes are opened on the orifice plates and distrusted in a circle center. The invention provides a novel separator for thoroughly separating the steam and water.

The invention discloses a waste heat utilization device of an air compressor. A base and an output pipeline are included, a plate heat exchanger body is mounted on one side of the surface of the base, two mounting frames are welded to the surface, on one side of the plate heat exchanger body, of the base, and a mounting mechanism is arranged between the two mounting frames. A first water storage tank and a second water storage tank are assembled on the mounting mechanism, top covers are arranged at the tops of the first water storage tank and the second water storage tank correspondingly, the two ends of an output pipeline penetrate through the two top covers correspondingly and communicate with the first water storage tank and the second water storage tank correspondingly, and cleaning mechanisms are assembled on the first water storage tank and the second water storage tank correspondingly . Hot water output after the plate heat exchanger body completes heat conversion work is conveyed into the water storage tanks through cooperation of a water pump and the pipeline, impurities possibly existing in the hot water are fully filtered out through a filtering mechanism in the period, and therefore the overall waste heat utilization effect is improved.

The invention discloses a blast furnace slag granulation and waste heat recovery system, and relates to the field of blast furnace slag waste heat recovery. The blast furnace slag granulation and waste heat recovery system comprises a blast furnace, a high-pressure slag conveying device, a slag granulation fluidized bed device, a supercritical CO2 recompression power circulation system and a low-temperature slag heat recovery device; the high-pressure slag conveying device is arranged between the blast furnace and the slag granulation fluidized bed device; the slag granulation fluidized bed device is connected with the low-temperature slag heat recovery device; and the supercritical CO2 recompression power circulation system is respectively connected with the slag granulation fluidized bed device and the low-temperature slag heat recovery device. The supercritical CO2 recompression circulation technology is introduced, meanwhile, supercritical CO2 airflow is adopted as a cooling medium, the waste heat recovery efficiency is improved, and meanwhile high-quality slag products are produced.

The invention discloses a whole-process waste incineration system which comprises a waste pretreatment system, a waste incineration system, a waste incineration system and a waste incineration system. The waste incineration system comprises a waste incinerator (10), and a material inlet of the waste incinerator (10) is connected with a material outlet of the pretreatment drying kiln (9); the waste heat utilization system comprises a waste heat boiler (11), a flue gas inlet of the waste heat boiler (11) is connected with a flue gas outlet of the garbage incinerator (10), and a steam outlet of the waste heat boiler (11) is connected with a heat inlet of the pretreatment drying kiln (9); the waste incineration flue gas treatment system comprises a tunnel kiln (22), and the tunnel kiln (22) comprises a tunnel kiln main body structure; smoke exhausted by the waste heat boiler (11) is guided into the tunnel burning kiln body. According to the whole-process waste incineration system, the economic benefit is improved.

The invention relates to the technical field of biomass boilers, in particular to a small biomass heat supply system for transforming a traditional cooking bench. The small biomass heat supply systemcomprises a cooking bench, a solar thermal collector, a heat radiator and domestic water equipment, wherein the cooking bench comprises a water tank, a hearth and a chimney, a water tank is arranged on the outer wall of the hearth, a partition plate is arranged in the water tank and divides the water tank into an inner water tank and an outer water tank, a water flow channel is formed in the wallsurface of the chimney, water in the water flow channel exchanges heat with smoke in the chimney, an water inlet of the solar thermal collector is connected with the municipal water supply, a water outlet of the solar thermal collector communicates with a water inlet of the inner water tank, and a water outlet of the inner water tank communicates with a water inlet of the heat radiator; and a water inlet of the water flow channel is connected with the municipal water supply, a water outlet of the water flow channel communicates with a water inlet of the outer water tank, a water outlet of theouter water tank communicates with a water inlet end of the domestic water equipment. The inner water tank and the outer water tank are arranged on the outer wall of the hearth, so that hot water canbe provided for heating and hot water for life can be provided as well.