54results about How to "Conducive to waste heat recovery" patented technology

A waste heat recovery system comprises a steam generator, a processor, a first heat exchanger, and a second heat exchanger. The steam generator generates an original steam using water. The first heat exchanger condensates the first steam and emit water and a second steam from the processor. The second heat exchanger condensates the second steam from the first heat exchanger. The second heat exchanger condensates the second steam from the first heat exchanger leaving water only. The water from the first heat exchanger and the second heat exchanger may be guided into the steam generator or into the first heat exchanger. The second heat exchanger comprises one or more pressure relief valve. The pressure relief valve operates when inner pressure of the second heat exchanger exceeds above a predetermined value.

The invention discloses a novel energy-saving air conditioner for a computer room. The novel energy-saving air conditioner for the computer room comprises an indoor machine box located in the room, and a control system placing area, a control panel displayer, two sets of air conditioner parts, a water pan, an indoor unit fan, a condenser A, a condenser B and a condenser fan are arranged in the indoor machine box, wherein the condenser A, the condenser B and the condenser fan are arranged out of the room. Hot air in the room enters an air inlet duct area through air inlets formed in the rear wall of the indoor machine box and the top of the indoor machine box under the pumping pressure of the indoor unit fan, is cooled through an evaporator A and an evaporator B and then enters an exhaust duct, and cold air in the exhaust duct is sent into the room through an air outlet in the bottom of the indoor machine box. The novel energy-saving air conditioner for the computer room is simple in structure and relatively low in product manufacturing cost; when the novel energy-saving air conditioner for the computer room is used, the reliability is high, the refrigeration effect is good, and vigorous promotion and application can be performed easily.

The invention discloses an ammonia synthesis technology for improving ammonia separation effects through temperature swing adsorption. Synthetic gas is connected to the inlet of a desorption end of an adsorption and desorption tower, synthetic gas at the outlet of the desorption end of the adsorption and desorption tower is successively cooled through a preheater and a water condenser and then enters an ammonia separator; circulation gas is connected to an inlet of the adsorption end of the adsorption and desorption tower; the circulation gas at the outlet of the adsorption end of the adsorption and desorption tower enters the preheater for being preheated, and the preheated circulation gas enters an ammonia synthesis tower. Only two adsorption and desorption towers and transfer valves, which can be mutually replaced for regeneration adsorption, are added, and the aims of greatly increasing one-way ammonia synthesis rate and reducing the energy consumption of an ice machine can be realized. Under the conditions of lower temperature and less NH3 partial pressure, NH3 in the circulation gas in the ammonia converter is adsorbed, so that the absorbed NH3 reaches a less in-tower ammonia content, and the out-tower synthetic gas desorbs the absorbed NH3; the desorbed NH3 is gathered in the out-tower gas, so as to increase the total ammonia partial pressure of the synthesis cycle gas. After water cooling, condensation and separation are carried out, so as to increase one-time one way synthetic ratio and an ammonia net value, and increase the ammonia yield and improve the reaction condition of the synthesis tower.

The invention relates to a production technology of corn pulp addition fibers. The production technology sequentially comprises the following steps of separating corn fibers in a corn starch plant into dehydrated corn fibers and dehydrated fluid, conveying the dehydrated corn fibers into a first pipe bundle drier for first-stage drying, and controlling a product return ratio; after the first-stage drying, performing primary pulp addition with thick corn pulp, performing uniform mixing to obtain a first mixture, conveying the first mixture into a second pipe bundle drier for second-stage drying, and controlling a product return ratio; after the second-stage drying, performing secondary pulp addition with thick corn pulp, performing uniform mixing to obtain a second mixture, conveying the second mixture into a third pipe bundle drier for third-stage drying, and controlling a product return ratio; enabling discharged corn fibers after the third-stage drying, namely corn pulp addition fibers to enter a multi-stage countercurrent cooling tower for cooling; and respectively performing dust removal and residual heat recover on the high-quality tail gas of the first pipe bundle drier, the high-quality tail gas of the second pipe bundle drier, and the low-quality tail gas of the third pipe bundle drier, and gradually concentrating thin corn pulp into the thick corn pulp through recovered heat. The production technology of the corn pulp addition fibers disclosed by the invention is low in steam consumption and power consumption, high in drying efficiency and good in product quality.

The invention discloses an energy-saving and environment-friendly combustion system using flue gas for supporting combustion for an industrial furnace. The energy-saving and environment-friendly combustion system comprises a furnace body, a combustor and a heat exchanger, wherein the furnace body is provided with a first flue and a second flue; the combustor is provided with a first inlet and a second inlet; the heat exchanger is provided with a high-temperature flue gas inlet, a cold air inlet, a low-temperature flue gas inlet and a hot air inlet, the high-temperature flue gas inlet is connected with the first flue, the low-temperature flue gas inlet is connected with a chimney, the cold air inlet is connected with a first fan, the hot air inlet is connected with the first inlet of the combustor, and the second flue is connected with the second inlet; and the combustor comprises a central pipe, an inner barrel arranged outside the central pipe in a sleeving manner, an outer barrel arranged outside the inner barrel in a sleeving manner, and a circular-table-shaped mixing cavity connected between the outer barrel and the furnace body, the first inlet communicates with a first annular space formed between the outer wall of the central pipe and the inner wall of the inner barrel, and the second inlet communicates with a second annular space formed between the outer wall of the inner barrel and the inner wall of the outer barrel.

The invention discloses a gas boiler waste heat recovery and purification system based on membrane humidification, which belongs to the technical field of flue gas waste heat recovery and purification. The system comprises a membrane type spray heat and mass transfer tower 7 and a flue gas recirculation device 2. The flue gas recirculation device 2 is respectively connected with a boiler 1 and themembrane type spray heat and mass transfer tower 7, after flue gas A passes through a fan 8, recirculation flue gas B is supplied to a draught fan, the recirculation flue gas B, and fuel gas I and high-temperature high-humidity combustion air H are introduced into the boiler 1 after mixed to supply gas J for the boiler so as to reduce NOx; the membrane type spray heat and mass transfer tower 7 isvertically divided into a liquid storage tank 11, a flue gas-medium circulating water heat transfer segment 3 and a flue gas-air heat and mass transfer segment 5 from bottom to top so as to be used for recycling the total heat of the flue gas. The system realizes the recycle of the total heat of flue gas waste heat, improves the heat efficiency of the boiler, and reduces the NOx emission of the boiler through the humidification of combustion air and the recirculation of the flue gas.

The invention discloses a dry desulfurization agent for ships, a preparation method thereof, and a ship dry desulfurization process, and belongs to the technical field of ship dry desulfurization. Thepreparation method comprises the following steps: mixing a component A and a component B according to a certain ratio; uniformly mixing the component A and the component B, adding water accounting for 20-60% of the total amount of the component A and the component B, uniformly mixing all the components, carrying out extrusion molding to from strips, activating the molded product at 60-120 DEG C for 2-12 hours, and drying the molded product at 120-200 DEG C for 2-12 hours to obtain the dry desulfurization agent for ships. Ship flue gas is fed from the bottom of a moving bed dry desulfurizationreactor, the ship flue gas is desulfurized by a dry desulfurization agent in the moving bed dry desulfurization reactor, and the desulfurized ship flue gas enters a chimney or a heat exchange systemfrom the upper part of the moving bed dry desulfurization reactor to take heat again. A moving bed process is adopted, a certain dust removal function is achieved, dust generated by heavy oil combustion can be effectively eliminated, an existing flue gas system of a ship is slightly changed, the desulfurization efficiency is high and is 90% or above, stability is achieved, and the influence of external factors is small.

The invention discloses a decontamination system for a wastewater heat exchanger, belonging to the technical field of energy utilization. A bypass pipeline at a wastewater inlet side of an upper water end of a system cleaner is communicated with a bypass pipeline at a wastewater inlet side of a lower water end of the cleaner, and a valve is mounted between the communicated pipelines. A bypass pipeline at a lower water side of the upper water end of the cleaner is communicated with a bypass pipeline at the lower water side of the lower water end of the cleaner, and a valve is mounted between the communicated pipelines. A bypass pipeline in the middle of the upper water end of the cleaner is communicated with a bypass pipeline in the middle of the lower water end of the cleaner, and a wastewater heat exchanger, a third filter and a valve are mounted between the communicated pipelines. According to the system disclosed by the invention, a decontaminating ball is driven by pushing of wastewater to do reciprocating motions in a wastewater channel in a pipe of the heat exchanger by opening the valves to realize relative pipeline switching, so as to remove a dirt layer on the inner wall of the pipe by colliding and rubbing the dirt layer on the inner wall of the pipe. Therefore, the dirt heat resistance of the heat exchanger is reduced to improve the heat exchange property of the wastewater heat exchanger.

The invention relates to a system for evaporation and concentration by using waste heat of a dryer. The system comprises a first tube bank dryer, a second tube bank dryer and a third tube bank dryer which successively heat materials in series, the exhaust gas outlets of the tube bank dryers are respectively connected with the air inlets of a first cyclone dust collector, a second cyclone dust collector and a third cyclone dust collector, the air outlets of the first cyclone dust collector and the second cyclone dust collector are connected with the air inlet of a waste heat absorption tower, the air outlet in the top of the waste heat absorption tower is connected with the inlet of an absorption tower exhaust fan, a filler layer is arranged at the upper part of an inner cavity of the waste heat absorption tower, a liquid distributing tray is arranged above the filler layer, a water collecting tray is arranged at the bottom of the waste heat absorption tower, the drainage outlet in the bottom of the water collecting tray is connected with the inlet in the middle of a waste heat flash tank, the waste heat flash tank steam outlet in the top of the waste heat flash tank is connected with a flash steam pipe, the bottom of the waste heat flash tank is connected with the inlet of an absorption tower circulating pump, and the outlet of the absorption tower circulating pump is connected with a water replenishing pipe in the center of the liquid distributing tray. The system for the evaporation and concentration by using the waste heat of the dryer disclosed by the invention is high in utilization rate of the waste heat and good in concentration effect.

The invention relates to a production process of DDGS feed. The production process successively comprises the following steps: separating waste liquor of an alcohol plant into wet alcohol residues and clear liquid; concentrating the clear liquid into concentrated liquid; feeding the wet alcohol residues to a first tube bundle dryer, carrying out first-stage drying and controlling return ratio; after first-stage drying, carrying out first pulp adding by using the concentrated liquid; after mixing evenly, feeding into a second tube bundle dryer, carrying out second-stage drying and controlling return ratio; after second-stage drying, carrying out second pulp adding by using the concentrated liquid; after mixing evenly, feeding into a third tube bundle dryer, carrying out third-stage drying and controlling return ratio; defining alcohol residues discharged after third-stage drying as the DDGS feed; and cooling the DDGS feed in a multi-stage reverse flow cooling tower. High-quality tail gas of the first tube bundle dryer and the second tube bundle dryer and low-quality tail gas of the third tube bundle dryer are respectively subjected to dust removal and waste heat recycling, and the recycled heat is used for concentrating the clear liquid into the concentrated liquid step by step. The production process of the DDGS feed is low in steam and power consumption, high in drying efficiency and good in product quality.

A multi-effect heater, which is mainly composed of an outer shell, an inner shell, a water jacket, a spoiler, and a combustion tube respectively socketed from outside to inside. There is a circular heat exchange chamber between the shells, and there is a circular exhaust gas chamber between the inner shell and the outer wall of the water jacket. In the exhaust gas chamber, there are semi-circular spoilers that are relatively staggered around the water jacket. The inner wall of the water jacket and the combustion tube There is a circular gas chamber in between, the water jacket is provided with a liquid inlet, a liquid outlet and a vent, the inner shell is provided with an exhaust gas outlet and passes through the outer shell, and the outer shell is provided with a heat exchange medium inlet and a heat exchange medium outlet.

The invention discloses a process method for batch rectification of crude maleic anhydride. The steam flow in the batch rectification process of crude maleic anhydride is stabilized. Crude anhydride is pumped into a standing tank through a pump, a reboiler is immersed in the standing tank, medium-pressure steam is used as a heat source, the gas phase of a refining tower enters a reflux tank afterbeing condensed by a tower top condenser, one part of the material in the reflux tank flows back, and the other part of the material in the reflux tank is collected out of a desorption tower or tank area. Heavy component residual anhydride in the standing tank is pumped out of the device, the overhead condenser uses hot water or other heat taking media to take heat. Except for entering the condenser, the other part of the heating medium passes through an auxiliary line and enters the heater after being converged, and the heater uses medium-pressure steam as a heat source. The flow of the heating medium is stabilized through the condenser auxiliary line regulating valve, the temperature is stabilized by heating the heated medium through steam of the heater, the effect of stabilizing the steam usage amount of the whole refining tower is achieved, the flow and the temperature of the heating medium are stable and waste heat recovery of the heating medium is facilitated.

The invention discloses a low-oxygen low-nitrogen combustion system for a coal-fired chain grate boiler. The low-oxygen low-nitrogen combustion system comprises a hearth, combustion cylinders, a fan coal mill and a fuel conveying pipe. A partition plate is arranged in the hearth and partitions the hearth into a combustion region and a heat absorption region. The partition plate is provided with at least one heat conducting passageway so that the combustion region can communicate with the heat absorption region. The two opposite side walls of the hearth are each provided with one combustion cylinder. The combustion cylinders communicate with the hearth. The heat absorption region is provided with an opening connected with a first smoke lead-in pipe. The first smoke lead-in pipe is connected with the fan coal mill. The fan coal mill is connected with a raw coal input pipe. An output opening of the fan coal mill is connected with the combustion cylinders through the fuel conveying pipe. The low-oxygen low-nitrogen combustion system for the coal-fired chain grate boiler has the following beneficial effects that complete combustion can be achieved, and the highest calorific power can be released; raw coal combustion acceleration is facilitated, the burnout rate is increased, and waste heat recovery is facilitated; and complete combustion of raw coal can be guaranteed, and meanwhile emission of nitrogen oxide can be reduced by over 30%.

The invention discloses an energy-saving and environment-friendly combustion system of a layer-burning boiler. The energy-saving and environment-friendly combustion system comprises a hearth, a combustion cylinder, a fan coal mill and a fuel conveying pipe, wherein at least one combustion cylinder is arranged on the side wall of the hearth, and the combustion cylinder connects and communicates with the hearth; an opening is formed in the upper part of the hearth and is connected with a first smoke inlet guide pipe; the first smoke inlet guide pipe is connected with the fan coal mill; the fan coal mill is connected with a raw coal input pipe; and the output opening of the fan coal mill is connected with the combustion cylinder through the fuel conveying pipe. The energy-saving and environment-friendly combustion system has the advantages that the low-oxygen combustion of coal powder can be facilitated, sufficient combustion can be ensured, and the highest heat value is released; the acceleration of coal powder combustion is facilitated, the burn-off rate is improved, and the recycling of residual heat is facilitated; and full coal powder combustion can be ensured, and at the same time, the emission of more than 40% of nitric oxide can be reduced.

The invention discloses a metallurgy device facilitating residual heat recovery and metal powder recovery. The metallurgy device comprises a supporting plate, wherein supporting legs are fixedly connected to the surface of the supporting plate, the surfaces of the supporting legs are fixedly connected to a smelting furnace, a heating chamber is fixedly connected to the bottom of the smelting furnace, and a flue gas outlet is formed in the surface of the smelting furnace. According to the metallurgy device facilitating residual heat recovery and metal powder recovery, when the heat in flue gasneeds to be recycled, a first water pump is started, the first water pump pumps cold water into a heat exchange pipe from the interior of a first water tank through a first water inlet pipe and a first water outlet pipe, and the cold water is conveyed in the pipe from right to left to take away the heat in a flue gas outlet pipe; and the temperature of the water after heat exchange is increased, the water is delivered into a second water tank through a heat exchange water outlet pipe, the effect of recovering the residual heat of the high-temperature flue gas is achieved, so that the problem that energy waste is caused to a certain degree due to the fact that residual heat and the metal powder are not easily recycled by general metallurgical equipment is effectively solved.

The invention relates to a sewage waste heat recovery device and a working method thereof, and belongs to the field of sewage treatment and energy conservation. The sewage waste heat recovery device comprises a clear water buffer tank, a water supply pump, a first valve, a second valve, a third valve, an aeration device, a heat exchanger, a fourth valve, a heat exchange device and a clear water recycling tank, wherein the clear water buffer tank is connected with the water supply pump; an outlet of the water supply pump is connected with an inlet of the heat exchanger; the first valve is arranged between the outlet of the water supply pump and the inlet of the heat exchanger; the heat exchanger is installed in the heat exchange device, the outlet of the heat exchanger is connected with the clear water buffer tank and the clear water recycling tank; the second valve is installed on a branch pipe connected to the clear water buffer tank; the third valve is installed on another branch pipe connected to the clear water recycling tank; the aeration device is arranged at the bottom of the heat exchange device; and the fourth valve is arranged on a drain outlet pipeline at the bottom of the heat exchange device. The sewage waste heat recovery device is simple and reasonable in structural design, can effectively recover waste heat of sewage, prevents impurities from adhering to the interior of the heat exchange device and the surface of the heat exchanger, and meets usage requirements.