16results about How to "Lower discharge temperature" patented technology

The invention discloses a titanium dioxide calcination tail gas dust content ultralow emission method, relates to the technical field of titanium dioxide production tail gas treatment, and solves the technical problem of high tail gas dust content caused by the fact that actual tail gas treatment cannot meet the emission standard in the existing titanium dioxide calcination process. The method comprises the following steps: S1, carrying out primary spraying treatment on tail gas obtained after titanium dioxide is calcined so as to preliminarily remove dust and sulfur dioxide pollutants in the tail gas; s2, the tail gas treated in the step S1 is subjected to secondary water spraying treatment so as to absorb sodium sulfite generated in the step S1; and S3, the tail gas treated in the S2 is subjected to demisting treatment, so that acid mist in the tail gas is removed, and the tail gas reaches the emission standard. The device has the advantages that pollutants generated in the tail gas calcination process can be fully absorbed, and the tail gas dust content is reduced.

This utility model discloses a flue gas waste heat recovery device, relating to the field of heat recovery technology, aiming to solve the problem of low recovery efficiency and waste in existing heat recovery devices. This boiler flue gas heat recovery device guides flue gas flow through a flue pipe, sequentially passing through a gas-liquid heat recovery component and a gas-to-gas heat recovery component to achieve staged recovery of flue gas waste heat. The flue pipe includes a connecting pipe and a heat recovery pipe. The connecting pipe is located at both ends of the heat recovery pipe, connecting it to the boiler flue gas outlet and the blower. The gas-liquid heat recovery component is arranged on the upper part of the heat recovery pipe, near the boiler flue gas outlet, and can preferentially exchange heat with high-temperature flue gas. The gas-to-gas heat recovery component is located behind the gas-liquid heat recovery component, also installed on the upper part of the heat recovery pipe. It mainly reduces the flue gas emission temperature through heat exchange between flue gas and fresh air or low-temperature flue gas, maximizing waste heat recovery and improving overall energy efficiency.

A novel plate heat exchanger absorption chiller belongs to the field of heat exchange equipment technology. It employs a two-stage low-temperature heat return system, a refrigerant plate heat exchanger, and a first-stage low-temperature heat return system connected in series and in parallel with the low-temperature heat exchanger. A dilute solution is heated by heat from the shell side and collected before entering the plate low-temperature regenerator. In the plate low-temperature regenerator, it is heated by high-temperature refrigerant vapor from the plate high-temperature regenerator, concentrating it into an intermediate concentration solution. This intermediate concentration solution is then pumped through an intermediate liquid pump, exchanging heat with the high-temperature heat exchanger and the parallel high-temperature heat return system, before entering the plate high-temperature regenerator. There, it is heated by external steam to generate refrigerant vapor, concentrating it into a high-concentration absorbent. Finally, it returns to the absorber to absorb refrigerant vapor generated from evaporation in the evaporator, diluting it into a dilute solution. This invention effectively reduces the overall solution filling volume and unit cost, significantly improves the unit's heat exchange efficiency, effectively stabilizes the liquid level, ensures stable unit operation, and enhances the unit's operational safety.

The invention provides an operating system for optimizing high-pressure steam attemperation water, and relates to the technical field of ammonia synthesis. In the operation system, a high-pressure steam coil is arranged at the bottom of a first-section furnace convection section, a water supply coil is arranged at the top of the first-section furnace convection section, an inlet of the high-pressure steam coil is connected with an outlet of a first high-pressure steam pocket through a steam pipeline, and an inlet of the water supply coil is connected with an outlet of a boiler water supply pump through a first water supply pipeline; an outlet of the water supply coil pipe is connected with an inlet of the first high-pressure steam pocket; an outlet of the boiler feed pump is connected with an inlet of the heat exchanger through a second feed pipeline. An outlet of the heat exchanger is connected with a third feed pipeline, a fourth feed pipeline and a desuperheating water pipeline. The third water supply pipeline is connected with an inlet of the second high-pressure steam pocket, the fourth water supply pipeline is connected with an inlet of the first high-pressure steam pocket, and the attemperation water pipeline is connected with the high-pressure steam coil. The flue gas emission temperature of the first-section furnace can be reduced while the steam yield is increased, and the purposes of energy conservation and emission reduction are achieved.

The utility model is applicable to the technical field of material scattering boxes, and provides a material scattering box for a preheater, which comprises a material scattering box body, a material scattering box cover and a material scattering box cover, dispersing blades are arranged in the material scattering box body, and one side of each dispersing blade is fixedly connected with a first rotating shaft. According to the material scattering box for the preheater, the scattering blades, the first rotating shaft, the gear box, the first motor, the auxiliary mechanism and the smashing mechanism are arranged, so that materials are evenly scattered in the material scattering box body, the caking condition is avoided, the material scattering effect is improved, the heat exchange efficiency and the heat utilization rate are improved, and the material scattering effect is improved. The unit heat consumption and the waste gas emission temperature are effectively reduced, the energy cost is saved, and the problems that the unit heat consumption and the waste gas emission temperature are high and the energy cost is large due to the fact that an existing material scattering box is low in heat exchange efficiency and heat utilization rate are solved.

The invention provides a high-temperature heat exchange type steel ladle roaster. The high-temperature heat exchange type steel ladle roaster comprises a cold air distribution bin, a plurality of heat exchanger chambers, a hot air distribution bin and burners. A heat exchanger is arranged in the heat exchanger chamber, a plurality of longitudinal holes and a plurality of transverse holes are formed in the heat exchanger, the longitudinal holes and the transverse holes are vertically arranged at intervals, flue gas of the hot flue gas port flows upwards from the longitudinal holes, and air of the cold air outlet flows from the transverse holes; the heat exchanger is made of silicon carbide ceramics. A cold air distribution bin is distributed to a plurality of heat exchanger chambers for heat exchange, hot air generated by the plurality of heat exchanger chambers is collected to a hot air distribution bin and distributed to different positions of a burner, almost all flue gas can be pumped out through a heat exchanger for low-calorific-value fuel, and waste heat in the flue gas can be recycled; for high-calorific-value fuel, the heat exchanger is made of silicon carbide ceramic, is resistant to high temperature and long in service life, adopts a convection structure, is much higher in heat exchange efficiency, and is more energy-saving in the whole system.

The present invention relates to the field of flue gas technology, and more specifically discloses a flue gas purification device for environmental protection, including a shell component, a smoke exhaust shell is installed on the top of the shell component, a condensation component is installed inside the shell component, a support frame is fixedly connected to the top of the condensation component, a sprinkler is installed on the bottom of the condensation component, and a filter component is installed inside the shell component at the bottom of the sprinkler, the filter component divides the upper and lower parts into a filter space and a desulfurization space, a smoke inlet pipe is installed at the bottom of the filter component, and one end of the bottom of the smoke inlet pipe extends out of the outside of the shell component and is connected to an external pipeline; the present invention is provided with a filter component, which is conducive to the rotating ring only driving a single filter rod to rotate each time it passes through a single filter rod during rotation, and the filter residue accumulated at the bottom of the filter ball will flip to the top, and the cleaning plate cleans the upper surface of the large filter hole, so that the filter ball always maintains a good filtering effect.

The utility model belongs to the technical field of grain drying equipment, and particularly relates to a mixed flow and cross flow grain dryer. A mixed flow drying section, a grain guiding section, a transverse flow drying section and a grain discharging section are sequentially arranged in the dryer body from top to bottom, a combustion device is arranged on one side of the dryer body, an air suction device is arranged on the other side of the dryer body, a first air inlet cover is arranged at the air inlet end of the mixed flow drying section, and a first air outlet cover is arranged at the air outlet end of the mixed flow drying section. A second air inlet cover is arranged at the air inlet end of the cross flow drying section, a second air outlet cover is arranged at the air outlet end of the cross flow drying section, the combustion device is communicated with the second air inlet cover, the second air inlet cover is communicated with the first air inlet cover through a fan and a first communicating pipe, the first air outlet cover is communicated with the second air outlet cover through a second communicating pipe, and the air suction device is communicated with the first air outlet cover; through the up-down combination of the mixed flow drying section and the transverse flow drying section, the advantages of mixed flow drying uniformity and high transverse flow drying speed are considered, and staged efficient drying of grains in which mixed flow is performed firstly and then transverse flow is performed is realized.

The utility model relates to a catalytic oxidation device and waste gas treatment equipment, and relates to the field of waste gas treatment equipment. The utility model provides a catalytic oxidation device. The catalytic oxidation device comprises a heat exchanger, a discharge outlet, an activated carbon adsorption device, a heating assembly and a catalytic reaction device, the heat exchanger comprises a first air inlet, a first air outlet, a second air inlet and a second air outlet, the air inlet end of the activated carbon adsorption device is communicated with the first air inlet, the first air outlet is communicated with the air inlet end of the heating assembly, the air outlet end of the heating assembly is communicated with the air inlet end of the catalytic reaction device, the air outlet end of the catalytic reaction device is communicated with the second air inlet, and the second air outlet is communicated with the air outlet end of the activated carbon adsorption device. By arranging the heat exchanger, the clean gas with heat energy enters the heat exchanger to perform cold and heat exchange with the organic waste gas, the temperature of the heating assembly for secondary heating of the waste gas is reduced, energy consumption resources are reduced, and the exhaust temperature of the clean gas is reduced.

A high-temperature tail gas combustion-supporting device for a gas turbine includes a shell, a central gas pipe, a central air pipe, a main gas pipe, a central gas burner, a main gas burner, a high-temperature flue gas diversion mechanism, an air pipe with an electric damper, and a flame detector; there is an inspection door on the front side of the shell, and an exhaust gas connecting pipe is provided on the left side of the shell; the electric damper air pipe is installed at the rear end of the shell; there is a high-temperature flue gas diversion mechanism at the right end of the shell; there is also an observation pipe at the left end of the shell; the central gas pipe, the central air pipe and the main gas pipe are respectively installed at the lower end of the shell; the central gas burner is transversely installed in the middle of the shell, and the main gas burner is transversely installed in the middle of the shell, and after installation, they are concentric with the high-temperature flue gas diversion mechanism. The present invention can not only effectively utilize the exhaust gas discharged by the gas turbine, but also reduce the oxygen content and nitrogen oxides NOx in the flue gas, so as to achieve the premise of fully utilizing the heat and oxygen content of the gas turbine tail gas as much as possible, and also reduce environmental pollution.

The present application provides a vertical furnace segmented cooling and staged heat recycling system and method, the vertical furnace segmented cooling and staged heat recycling system comprising: a vertical furnace having a reduction zone and a cooling zone from top to bottom; a feeding bin arranged at the top inlet of the vertical furnace and a cooler arranged at the bottom outlet of the vertical furnace; a first-stage cooling and heat recycling unit having a first gas supply pipe communicated with the lower part of the cooling zone and a first heat recovery pipe communicated with the upper part of the cooling zone and the upper part of the reduction zone; and a second-stage cooling and heat recycling unit having a second gas supply pipe communicated with the inlet of the cooler and a second heat recovery pipe communicated with the cooler and the feeding bin. The present application can solve the problem of insufficient heat recycling in the existing vertical furnace cooling system, resulting in energy waste.

The invention discloses a two-phase flow phase change heat absorber, comprising: a phase change heat absorber shell having an air inlet and an air outlet respectively arranged at the front and rear ends, a plurality of phase change heat absorbers are sequentially arranged at intervals from front to back along the gas flow direction inside the phase change heat absorber shell, and the structure of the phase change heat absorber comprises: an upper connecting tube and a lower connecting tube distributed up and down, a plurality of heat absorbing fin tubes arranged in rows at intervals from left to right are connected between the upper connecting tube and the lower connecting tube, and the upper and lower ends of each heat absorbing fin tube are respectively connected to the upper connecting tube and the lower connecting tube; the lower connecting tubes of all phase change heat absorbers are simultaneously connected to the lower liquid collecting tube, and the upper connecting tubes of all phase change heat absorbers are simultaneously connected to the upper gas collecting tube; a steam pipe with a valve is arranged on the upper gas collecting tube, and a thermocouple and a temperature regulator for detecting the temperature of the working medium steam in the upper gas collecting tube are arranged in the upper gas collecting tube. The invention has the advantages of energy saving and corrosion resistance.

The invention discloses a closed-cycle phase-change superconductive steam engine, which relates to the field of steam heat exchange and comprises a steam engine main machine, the steam engine main machine is connected with a full-premixing plane combustion system, and a secondary side heat exchanger is arranged at the top of the steam engine main machine; one end of the blowdown waste heat recovery assembly is connected with the secondary side heat exchanger, and the other end of the blowdown waste heat recovery assembly is connected with the normal-pressure condenser; and the flue gas waste heat recovery assembly is connected with the steam engine main machine and the pollution discharge waste heat recovery assembly and is connected with the water inlet end of the secondary side heat exchanger at the same time. The steam engine secondary side heat exchanger is used for forming a closed reciprocating circulation system, only one boiler of water is burnt permanently, no water supplementing device is arranged, and the fault risk caused by the water quality problem is avoided; and the waste heat recovery assembly and the flue gas waste heat recovery assembly are used for preheating cold water, so that the use of fuel and the loss of heat are reduced.

The utility model discloses a battery pack and electric equipment, and belongs to the technical field of batteries, the battery pack comprises: a collecting pipe, in which a first channel and a second channel spaced from each other are arranged; the liquid cooling pipe is communicated with the first channel; a liquid cooling flow channel and an exhaust flow channel which are spaced from each other are arranged in the composite pipe; the composite pipe is provided with an air inlet, the air inlet communicates with the exhaust flow channel, the liquid cooling flow channel communicates with the first channel, and the exhaust flow channel communicates with the second channel; the battery is provided with a pressure relief piece, the battery is in contact with the liquid cooling pipe and the composite pipe, and the pressure relief piece is communicated with the air inlet. According to the battery pack, timely heat dissipation in the battery using process is facilitated, erupted high-temperature gas is rapidly treated when the battery cell is in thermal runaway, and the using performance and safety of the battery pack are improved.

The utility model discloses a kind of auxiliary heating boiler with steam generator, it includes: outer protective tank, the inner surface of outer protective tank is fixedly connected with baffle, baffle's inner surface is inlayed with heating tank, the inside of outer protective tank is provided with heating device, heating device is located below heating tank, the upper surface of heating tank is communicated with steam output pipe, the lateral surface of outer protective tank is fixedly connected with steam generator, the output end of steam generator is communicated with steam output pipe by conveying pipe, the outer wall of heating tank is fixedly connected with spiral heat pipe, by above component, by spiral heat pipe, flue gas waste heat can be transferred to heating tank outer wall, realize flue gas waste heat recovery and improve heating efficiency, reduce heat energy waste, and after flue gas releases heat through heat pipe, discharge temperature will reduce, reduce the influence to environment.

The present invention discloses a coupled energy-saving system, including a natural gas internal combustion engine distributed energy system and a natural gas steam boiler system, which are coupled through a stratified water tank, a remote liquid level gauge is provided in the stratified water tank, the natural gas internal combustion engine distributed energy system includes an internal combustion generator set, a first heat exchanger, an emergency radiator and a second heat exchanger, the first heat exchanger cools the flue gas, the emergency radiator and the second heat exchanger form a cooling cycle of the cylinder of the internal combustion generator set, the natural gas steam boiler system includes a natural gas boiler, a third heat exchanger, a drain device, an iron ion removal device, a water softener and a softening water tank, and tap water is respectively connected to the water inlet end and the water softener of the fourth heat exchanger arranged in the stratified water tank through a first three-way valve, and the water outlet end of the fourth heat exchanger is connected to the water softener. The present invention uses hot water generated by the waste heat of the internal combustion engine to heat the steam boiler to replenish water, reduces the overflow water temperature, reduces the waste of heat energy, reduces the boiler gas consumption rate, and improves the energy efficiency of the overall system.