92results about How to "Improve heat utilization efficiency" patented technology

The invention discloses a comprehensive recycling system for waste gas of a pressure swing adsorption nitrogen making device. The comprehensive recycling system comprises an air compressor, a refrigerated dryer, a first filter, a drying tower unit, a second filter, an air storage tank, an adsorption tower unit and a nitrogen storage tank which are sequentially connected through a pipeline, the drying tower unit comprises drying towers arranged in parallel, the inlet ends of the drying towers are connected with the first filter, and the outlet ends of the drying towers are connected with the second filter; the adsorption tower unit comprises adsorption towers arranged in parallel, the inlet ends of the adsorption towers are connected with an air storage tank, the outlet ends of the adsorption towers are connected with a nitrogen storage tank, and the nitrogen storage tank is provided with a nitrogen back-blowing pipe connected with the adsorption towers; a recovery pipe connected with the waste gas storage tank is arranged on the adsorption tower inlet switching pipeline, and a waste gas blowback pipe connected with the drying tower and an oxygen-enriched waste gas pipe connected with a boiler air inlet pipe are arranged at an outlet of the waste gas storage tank. The system is simple in structure and easy to implement, the cost is low when an existing nitrogen making device is transformed, and the energy consumption of the system can be effectively reduced.

The invention relates to the field of new energy vehicles, and discloses a fuel cell vehicle thermal management device and a fuel cell vehicle, and the fuel cell vehicle thermal management device comprises a first temperature control loop provided with a fuel cell; the second temperature control loop is provided with an electric drive module; the third temperature control loop is provided with a warm air core body and a heater; the fourth temperature control loop is provided with a battery pack and a heat exchanger, and the fourth temperature control loop flows through a first heat exchange pipeline in the heat exchanger; the first temperature control loop is provided with a first branch and a second branch and can be connected with the third temperature control loop through the first branch, the first temperature control loop can be connected with the fourth temperature control loop through the second branch, and the second temperature control loop is provided with a third branch and can be connected with the third temperature control loop through the third branch. The third temperature control loop is provided with a fourth branch, and the fourth branch can flow through a second heat exchange pipeline in the heat exchanger. According to the fuel cell vehicle heat management device and the fuel cell vehicle, waste heat of the electric pile system, the electric drive system, the battery system and the air conditioner system can be fully utilized.

The invention discloses an efficient adjustable energy supply system based on organic liquid and a hydrogen combustion engine. The efficient adjustable energy supply system comprises a dehydrogenation system, a hydrogen energy conversion device, a heat exchange system and a control system. The dehydrogenation system is used for generating stored oil and hydrogen from the hydrogen oil; the hydrogen energy conversion device comprises a hydrogen-fired engine and more than one of a proton exchange membrane fuel cell and an SOFC (Solid Oxide Fuel Cell); the heat exchange system is used for conducting waste heat of the hydrogen energy conversion device to the dehydrogenation system through a heat-conducting medium or recycling the waste heat; and the control system is used for controlling the output proportion of different power generation devices in the hydrogen energy conversion device and the reaction rate of the dehydrogenation system so as to realize the output of heat and electric energy in different proportions. When the dehydrogenation system based on the organic liquid hydrogen storage technology is coupled with a hydrogen engine, a proton exchange membrane fuel cell or an SOFC, the defect that a single hydrogen energy conversion device is coupled with the dehydrogenation system is overcome, the whole system is controlled, electric energy and heat of different proportions are flexibly output, and the comprehensive efficiency of the system is improved.

The invention relates to the technical field of plating, in particular to a tubular workpiece inner wall film deposition device and method.The deposition device comprises a deposition chamber, the deposition chamber comprises a reaction chamber, a feeding pipeline and a discharging pipeline are oppositely arranged on the two sides of the reaction chamber, and a supporting device is arranged in the reaction chamber; the supporting device is used for placing a tubular workpiece to be plated; the outer wall of the tubular workpiece is coated with the flexible heating piece, the heating bodies are distributed in the flexible heating piece to be plated and used for heating the tubular workpiece in the thin film deposition process, the tubular workpiece is wrapped by the flexible heating piece, the heating bodies and the tubular workpiece are tightly attached in a gapless mode for heating, the heating bodies wrap the tube body, heating is more uniform, and the coating effect is better. The heat conduction effect is high, and uniform deposition of a pipe inner wall film is facilitated; meanwhile, the flexible heating piece on the outer layer is used for supporting, the heat preservation and insulation performance is good, the heat utilization efficiency of the heating body is improved, the heating body is isolated from the supporting device, the heat influence of the supporting device is reduced, and the uniform deposition performance of the film is improved.

The utility model discloses a clean and energy-saving yellow phosphorus tail gas boiler which comprises a combustion chamber, a horizontal heat exchanger and a vertical heat exchanger which are sequentially connected in series through a flue, a drainage pipe of the vertical heat exchanger is connected with a water inlet pipeline of the horizontal heat exchanger, and the horizontal heat exchanger is located on the upstream of the vertical heat exchanger in the flowing direction of yellow phosphorus tail gas. The top of the horizontal heat exchanger shell side is connected with a steam pipeline. And the heat exchange efficiency and the service life of the heat exchanger are improved.

The invention relates to the technical field of environmental protection, and particularly provides a comprehensive recovery treatment system and method for waste liquid containing sulfur and various ammonium salts. The treatment system comprises a sulfur foam tank, a super centrifuge, a clear liquid tank, a concentrated acid tower, an oxidation tower, a conversion tower, a filtering system, an ammonium sulfate storage tank, a concentrated sulfur foam buffer tank, an incineration system, a purification system, a drying system, a conversion system, an absorption system and a tail absorption system. Slurry such as solid sulfur is subjected to high-temperature combustion in an incinerator to obtain flue gas containing sulfur dioxide, and then the flue gas enters a subsequent sulfuric acid production process system to prepare a finished product of industrial sulfuric acid, so that recycling of sulfur resources is realized. Ammonium thiosulfate and ammonium thiocyanate are completely converted into an ammonium sulfate product by the ammonium salt solution through oxidation, conversion and other processes, so that the recycling of nitrogen resources is realized.

The invention relates to the technical field of nuclear facility pipeline heating. The invention provides a pipeline heating device and an in-reactor test facility. The pipeline heating device comprises a magnetic conduction layer, a heat conduction layer, a heat preservation layer and an electromagnetic induction coil, the magnetic conduction layer is made of a magnetic alloy material, and the magnetic conduction layer is enclosed and internally forms a heating area used for containing a pipeline; the heat conduction layer is located on the side, facing the heating area, of the magnetic conduction layer and used for transmitting heat of the magnetic conduction layer to the pipeline. The heat preservation layer wraps the side, away from the heating area, of the magnetic conduction layer. The electromagnetic induction coil is wound around the side, away from the heating area, of the heat preservation layer. The magnetic conductive layer made of the magnetic alloy material serves as a main absorption and conversion carrier of magnetic field energy, the eddy current effect can be remarkably enhanced, the problem that the heating efficiency is insufficient due to low magnetic conductivity of the austenitic stainless steel pipeline is solved, and the heating efficiency is greatly improved. The arrangement of the magnetic conductive layer can fundamentally avoid material microscopic damage caused by direct action of a magnetic field, and the safety is higher.

The present invention relates to the field of pipeline heating technology, and in particular to a multi-tube series extremely fast heating device, comprising a plurality of hollow heating tubes placed side by side, silver electrodes being provided at both ends of the heating tubes, and nano-electric heating films being provided on the outer surface of the heating tubes between the two silver electrodes, the two ends of the plurality of heating tubes being interconnected through a pipeline connection assembly, and nano-film heating elements being provided on the plurality of heating tubes, the nano-film heating elements comprising a bracket, the plurality of heating tubes being respectively placed in arc grooves on both sides of the bracket, a conductive support column being provided between the upper and lower clamping electrodes, and the upper and lower clamping electrodes being fixed to the conductive support column by screws. The present liquid heating device adopts a method of directly heating the outer wall of the heating tube, reduces heat loss by reducing the heat transfer medium, increases the heat transfer speed, adopts small tubes in series, increases the heat transfer area and fluid flow rate, increases the length of the heating channel to achieve uniform heating, and further improves the efficiency of electrothermal conversion.

A convertible and controllable fixed trough concentrating solar photovoltaic and thermal integrated system belongs to the field of comprehensive utilization of new energy. It includes a fixed trough concentrating plate, a vacuum tube solar thermal collection system, a solar photovoltaic power generation system, a controllable electric conversion system and a support base. The fixed trough concentrating plate is a fixed structure, which can reflect and converge sunlight with changing irradiation angles to form a focusing focal plane. The vacuum tube solar thermal collection system is placed on the focusing focal plane, absorbing direct sunlight on the front side and absorbing, reflecting and concentrating sunlight on the back side and converting it into heat. The solar photovoltaic power generation system is installed at the bottom of the vacuum tube solar thermal collection system, and the photovoltaic panel can be moved upward as a whole through remote control, and the thermal collection system is blocked and located at the focusing focal plane position of the fixed trough concentrating plate, completing the conversion between solar thermal utilization and solar power generation. This system has the advantages of efficient concentration, photothermal and photoelectric conversion, low cost and light weight, and can realize efficient and comprehensive utilization of solar energy.

The invention discloses an ammonia fuel solid oxide fuel cell system capable of recycling anode tail gas. The ammonia fuel solid oxide fuel cell system comprises a fuel treatment loop, an air treatment loop, an anode tail gas circulation loop and a combustion tail gas circulation loop, the anode tail gas circulation loop is formed by sequentially connecting a galvanic pile anode outlet, a first electric heating type heat exchanger, a first heat exchanger, a steam-water separator, a booster pump, a hydrogen separator and an afterburner; the hydrogen separator is provided with a separation membrane only allowing hydrogen to pass through in one direction, the separation membrane divides the hydrogen separator into a mixed gas chamber and a hydrogen chamber, an inlet of the mixed gas chamber is connected with an outlet of the booster pump, an outlet of the mixed gas chamber is connected with the afterburner, and an outlet of the hydrogen chamber is connected with the mixer. According to the system, high-grade waste heat and hydrogen in the stack anode tail gas are recycled, the fuel utilization rate and the total thermal efficiency of the system are effectively improved, and the system has a wide market prospect.

The utility model discloses a rice milk liquefying, separating and processing device which is characterized in that an outlet of a rice milk conveying pipe is connected with a material inlet of an ejector, a steam inlet of the ejector is connected with a steam pipe, an outlet of the ejector is connected with a maintaining pipe, and an outlet of the maintaining pipe is connected with a gelatinization flash tank; a bottom outlet of the gelatinization flash tank is connected with an inlet of a liquefaction reaction laminar flow tank through a liquefaction liquid pump, a bottom outlet of the liquefaction reaction laminar flow tank is connected with a syrup flash tank through a syrup pump, a bottom outlet of the syrup flash tank is connected with a horizontal screw centrifuge through a flash discharge pump, and a syrup clear liquid outlet of the horizontal screw centrifuge is connected with a syrup tank. A bottom outlet of the syrup tank is connected with the saccharifying section through a syrup tank output pump; a solid phase outlet of the horizontal screw centrifuge is connected with a protein buffer tank; a bottom outlet of the protein buffer tank is connected with a protein washing section through a protein slurry delivery pump. The device can be used for separating syrup from solid-phase protein, no rime fog or water hammer phenomenon is generated in the liquefaction process, the energy consumption is low, and the environmental benefit is good.

The invention discloses an efficient rotary kiln for barite calcination, and belongs to the technical field of rotary kilns.The efficient rotary kiln comprises a fixed shell, a rotary cylinder, a preheating cylinder, a feeding mechanism and a heating mechanism, the interior of the rotary cylinder is hollow to form a calcining chamber, and the outer surface of the rotary cylinder is provided with spiral teeth extending in the spiral direction and a plurality of material shoveling plates extending in the axial direction; the spiral direction of the spiral teeth is the same as the rotating direction of the rotary cylinder; a feeding hole and a flue gas outlet are respectively formed in two ends of the preheating cylinder; a dust screen is wound on the outer side of the spiral teeth opposite to the flue gas outlet; the feeding mechanism is provided with a storage barrel communicated with the feeding hole; the heating mechanism is composed of a heating burner and a radiant tube arranged outside the heating burner in a sleeving mode, a flue gas channel is arranged between the radiant tube and the heating burner, and the flue gas channel extends out of the fixed shell and is provided with a flue gas tube extending into the material storage barrel; according to the invention, the calcining efficiency and the heat utilization efficiency can be improved, and the quality of the calcined product is improved.

The regenerated lead alloy pot comprises a furnace body, a lead pot is arranged in a hearth in the middle of the furnace body, the furnace body is composed of a supporting layer arranged on the outer side and a heat preservation layer arranged on the inner side, and a heat storage cavity is formed by the distance between the inner wall of the heat preservation layer and the outer wall of the lead pot arranged in the hearth. A plurality of detachable combustors which are annularly distributed at the upper part of the heat storage cavity are detachably arranged on the supporting layer; the detachable combustor comprises a compressed air sleeve, a natural gas sleeve and an oxygen sleeve which are sequentially sleeved from inside to outside. The detachable combustors are annularly distributed on the heat storage cavity of the lead pan, and the outlets of the detachable combustors are tangentially arranged along the outer wall of the lead pan, so that the periphery of the lead pan is uniformly heated, the tail ends of the detachable combustors are prevented from being directly aligned to the outer wall of the lead pan for heating, and the service life of the lead pan is prolonged.

The invention relates to a method for preparing synthesis gas by reforming methane and carbon dioxide, which comprises the following steps: feeding a hydrogen production raw material into a hydrodesulfurization reactor after first temperature rise, mixing the obtained desulfurized hydrogen production raw material with water vapor, then performing second temperature rise, and then feeding into a radiation unit of a hydrogen production converter for conversion reaction to obtain crude synthesis gas; the method comprises the following steps: feeding a mixed raw material obtained by mixing carbon dioxide and methane into a dry reforming reactor through a raw material inlet to be in contact with a reforming catalyst, performing catalytic reforming reaction, and obtaining reformed crude synthesis gas from a product outlet of the dry reforming reactor; and feeding the crude synthesis gas into a dry reforming reactor. According to the method, the high-temperature synthesis gas at the outlet of the hydrogen production reformer is used as a reaction heat source of the reforming reaction, the energy consumption of the preparation process is low, high-temperature steam is hardly generated in the preparation process, near-zero emission of carbon dioxide can be realized, meanwhile, the heat utilization efficiency of the hydrogen production reformer can be obviously improved, and energy expansion and efficiency improvement of a hydrogen production device are realized.

The present invention relates to the technical field of automobile plastic parts processing, and specifically to a feeding device for processing automobile interior plastic parts, comprising a cylinder, wherein the cylinder comprises a shell with a top opening, a discharge port is provided at the bottom end of the shell, the discharge port is connected to a discharge barrel, the bottom end of the discharge barrel is connected to a melting device, a processing mechanism is provided in the shell, the processing mechanism comprises an exhaust member slidably arranged in the discharge port, a rotating shaft is rotatably connected to the exhaust member, the exhaust member comprises a mounting disk slidably connected to the discharge barrel and opening downward, a mounting frame is fixedly connected to the mounting disk, a first motor is fixedly connected to the mounting frame, a fan blade is fixedly connected to the output end of the first motor, an air cavity is provided in the rotating shaft, and the air cavity is connected to the inner space of the mounting disk.

The invention provides clothes processing equipment and a drum drying control method, the clothes processing equipment comprises a drum body assembly, the drum body assembly comprises an inner drum, an outer drum and a lifting rib, the inner wall surface of the side wall of the inner drum is provided with a mounting area, and the mounting area is provided with a first through hole; the lifting rib is arranged in the mounting area, and a cavity is defined by the bottom wall and the side wall of the lifting rib; the bottom wall of the lifting rib is provided with an opening and the side wall is provided with a second through hole; when the second through hole is in an open state, the first through hole, the opening, the cavity and the second through hole are sequentially communicated to form a passage, and the passage is communicated with the outer cylinder and the inner cylinder; when the second through hole is in a closed state, the passage is disconnected; the inner cylinder can be switched between a porous structure state and a non-porous structure state by controlling opening or closing of the second through holes in the lifting ribs; in the washing or rinsing stage, the second through hole is closed, and the inner barrel is isolated from the outer barrel; and in the drying or drum drying stage, the second through hole is opened, the inner drum communicates with the outer drum, hot air flows between the inner drum and the outer drum, and the drying uniformity is improved.

This utility model relates to a descending furnace, comprising a frame, furnace body, heating components, insulation cover, rotary lifting mechanism, sealing mechanism, crucible, and laser. The furnace body includes a furnace bottom, furnace cylinder, and furnace cover. The furnace cylinder and insulation cover are made of heat-resistant transparent optical material. The sealing mechanism is installed between a through hole and a drive shaft, and includes a flexible section configured to shorten as the drive shaft rises and extend as the drive shaft descends. An evacuation port is provided on the sealing mechanism. By employing an insulation cover and furnace cylinder made of heat-resistant transparent optical material, real-time visual monitoring of the entire crystal growth process is achieved. The sealing mechanism maintains a stable vacuum environment in the heating chamber, effectively suppressing heat loss caused by thermal radiation and convection. The laser beam promotes the nucleation and directional growth of crystal materials through light-induced effects, and simultaneously enables in-situ observation and diagnosis of solid-liquid interface morphology, interface fluctuations, and internal crystal defects.

The utility model discloses an electric iron multiple atomization steam generating device which comprises a heating body, a second-layer atomization plate, a third-layer atomization plate and an iron bottom plate, the heating body is provided with a water inlet, a second steam channel, an upper steam hole and a lower steam hole, and a first steam channel and a third steam channel are formed between the heating body and the second-layer atomization plate. The tail end of the first steam channel is communicated with the second steam channel through an upper steam hole; the second steam channel is communicated with the initial end of the third steam channel through a lower steam hole; a fourth steam channel is formed between the second-layer atomizing plate and the third-layer atomizing plate and is communicated with the tail end of the third steam channel through a steam through hole; and a steam outlet is formed in the third-layer atomizing plate on the lower side of the fourth steam channel. Due to the fact that the steam channels are arranged on the two sides of the heating body, heat generated by the heating body is fully absorbed, the heat utilization efficiency is high, larger steam atomization amount and a better steam effect can be achieved through the heating body with the small size, and clothes can be ironed more easily.

The invention belongs to the field of carbon dioxide methane reforming, and discloses a low-hydrogen-carbon-ratio synthesis gas preparation method and a low-hydrogen-carbon-ratio synthesis gas preparation system. The system comprises a dry reforming reactor, a carbon dioxide feeding pipeline, a methane feeding pipeline, a compression device, a hydrogen production reaction device, a reforming crude synthesis gas treatment device and a hydrogen production synthesis gas treatment device. The method not only solves the problems of easy catalyst deactivation, high energy consumption and the like in the technology for preparing the synthesis gas by reforming carbon dioxide methane, but also obtains the synthesis gas with low hydrogen-carbon ratio, and is especially suitable for being used as a raw material for preparing methanol and ethylene glycol. According to the invention, the purpose of increasing the yield of hydrogen (synthesis gas) can be achieved on the basis of not changing the existing hydrogen production furnace. As a typical blue hydrogen preparation method, carbon dioxide is turned into wealth, and economic and environmental benefits are obvious.

The utility model discloses a drying device for drying lump ore through low-temperature flue gas, relates to the technical field of equipment before iron making, and aims to solve the problems that the moisture content of the lump ore is high and the waste heat utilization scheme of the low-temperature flue gas is single at the same time. A lump ore chamber is of a cavity structure with the upper cross sectional area larger than the lower cross sectional area, a smoke chamber is an annular cavity and is fixed to the periphery of the lump ore chamber in a surrounding mode, the annular inner periphery is in surface contact with the periphery of the lump ore chamber, and a heat-resisting lining plate is fixedly arranged on the inner wall of the lump ore chamber and used for preventing adhesion and resisting abrasion. The upper end of the lump ore chamber is provided with an ore inlet and a dust steam outlet, and the lower end is provided with an ore outlet; the upper part of the smoke chamber is connected with a plurality of air outlet elbows, the lower part of the smoke chamber is connected with a plurality of air inlet elbows, and a plurality of guide plates are fixedly arranged in the air outlet elbows, the air inlet elbows and the smoke chamber respectively; a heat preservation shell is arranged on the periphery of the flue gas chamber; the lump ore drying device can directly utilize waste heat of low-temperature flue gas to dry lump ore, reduces water content of the lump ore entering the furnace, and is beneficial to controlling smelting cost, reducing smelting energy consumption and maintaining production stability of the blast furnace.

The invention relates to a solar high-temperature heat utilization system, which adopts a heat collection pipe type solar air heater, a heat conduction oil system for heat storage, heat conduction oil and inert gas mixed heat transfer and separation technology to realize efficient utilization of solar heat. The problem of incrustation in a solar water heater in which an existing heat collector directly heats water is solved, the solar water heater is convenient to install and maintain, and expected social and economic benefits are remarkable.

The utility model relates to the technical field of hot melt adhesive production equipment, in particular to a heating component for a hot melt adhesive reaction kettle, which comprises a metal kettle body, a pipeline filled with heat conduction oil is spirally wound on the outer side of the metal kettle body, and a clearance is reserved between two adjacent circles of pipelines up and down. The heating assembly comprises a heat insulation layer wrapping the outer side of the metal kettle body, a fixing outer layer arranged on the outer side of the heat insulation layer and used for fixing the heat insulation layer to the metal kettle body and an electromagnetic heating wire used for heating the metal kettle body, and a mounting groove is formed in the position, corresponding to the receding gap, of the outer side of the fixing outer layer; and the electromagnetic heating wire is arranged in the mounting groove and is wound on the fixed outer layer along the path of the mounting groove. According to the heating assembly for the hot melt adhesive reaction kettle, the elimination of an original hot melt adhesive reaction kettle adopting a conduction oil heating mode can be avoided, and the heating speed and the heat utilization efficiency are improved.

The application provides a steel dust and organic solid waste low-carbon synergic treatment melting furnace, which comprises a feeding unit, an iron bath pyrolysis unit and a recovery unit which are sequentially communicated; the iron bath pyrolysis unit comprises a furnace body containing molten iron and an oxygen delivery assembly communicated with an upper cavity in the furnace body; the feeding unit comprises a steel dust injection assembly, an organic solid waste injection assembly and an organic solid waste feeding opening arranged on the top of the furnace body and communicated with the furnace body; and the recovery unit comprises a flue gas recovery assembly communicated with an exhaust opening arranged on the shoulder of the furnace body. Through the above manner, the melting furnace can not only treat different types of organic solid waste and improve the utilization efficiency, but also treat the steel dust by using the organic solid waste, so that molten iron, dust rich in volatile metal elements and high-calorific-value synthetic gas rich in CO and H2 are produced, the reaction rate is fast, the product quality is high, and the efficient resource utilization of the organic solid waste and the steel dust is realized.

The invention is suitable for the technical field of heat supply devices, and provides a heat supply device based on a hydrogen catalytic combustion technology and a using method. The catalytic reaction module is connected with the air inlet mixing module, and a catalyst and a carrier of the catalyst are loaded in the catalytic reaction module; the heat exchange module is connected with the catalytic reaction module; the exhaust cooling module is connected with the catalytic reaction module through a connector; and the tail exhaust module is connected with the exhaust cooling module. The device can better solve the problems of safety control difficulty, low heat utilization efficiency, hydrogen tempering, high-temperature combustion nitrogen oxide emission and the like of direct hydrogen combustion.

The invention relates to the technical field of sludge treatment, in particular to a low-temperature negative-pressure opposite shearing type drying machine which comprises a horizontal cylindrical barrel, a left cavity shaft and a right cavity shaft, and the left cavity shaft and the right cavity shaft are arranged in the barrel. The left cavity shaft and the right cavity shaft horizontally penetrate through the barrel in parallel, the two ends of the left cavity shaft and the right cavity shaft are rotationally connected with barrel end plates in a sealed mode through bearings and dynamic sealing pieces and extend out of the barrel, and flow channels are formed in the left cavity shaft and the right cavity shaft; the self-adaptive hydraulic cleaning plate assembly is arranged at the front end of the rotating direction of the fan-shaped blade, the scraper is arranged at the rear end of the rotating direction of the fan-shaped blade, the extending distance of the cleaning plate assembly can be adjusted in a self-adaptive mode according to the viscosity of materials, crushing of large caked sludge and stripping of thick-layer sticky materials are completed firstly, and the scraper at the rear end only needs to scrape thin-layer residual materials completely; the problems of invalid scraping, excessive scraping or incomplete cleaning of a traditional fixed-length scraping plate are effectively solved, the rotating resistance of the blades and the energy consumption of equipment are greatly reduced, meanwhile, the scraping accuracy of the scraping plate is improved, and the service life of the scraping plate is prolonged.

The present application discloses a solution internal circulation evaporation system, comprising an evaporation device, a steam compression device and a solution delivery device, wherein the steam compression device is installed on one side of the evaporation device, and the solution delivery device is installed on the other side of the evaporation device, and the steam compression device and the solution delivery device are both connected to the evaporation device. The present application uses a thousand-page heat synchronous exchanger to concentrate and evaporate the liquid to be concentrated, and the installation of gaps in multiple folding pages increases the heat conduction area, and at the same time sprays a non-stick layer, and facilitates the cleaning of precipitated attachments generated during evaporation and concentration.

The utility model relates to the technical field of baking ovens, in particular to a dust-free industrial baking oven. Comprising a lower box body, the upper end of the lower box body is open, a fan is arranged in the lower box body, a heating assembly is fixed in the lower box body above the fan, one side of the upper end of the lower box body is rotationally connected with an upper box body, the upper end of the upper box body is open, the lower end of the upper box body blocks the upper end of the lower box body, an L-shaped supporting plate is fixed to one side of the lower box body, and an upper plate is inserted into the vertical part of the supporting plate; the lower end of the upper plate makes contact with the upper end of the upper box body, one end of the upper plate is rotationally connected with a rotating plate, the rotating plate makes contact with the upper end of the upper box body, the upper plate and the rotating plate block the upper end of the upper box body, and a plurality of through holes communicated with the lower box body are formed in a bottom plate of the upper box body. Air is driven by the fan to circulate in a closed loop formed by the lower box body, the upper box body, the air duct and the hose, and the air is continuously heated in combination with the heating pipe, so that heat loss is greatly reduced.

The invention discloses casting waste heat recovery and comprehensive reutilization equipment for industrial production. The casting waste heat recovery and comprehensive reutilization equipment comprises a supporting frame. The waste heat recovery unit comprises a heat absorption component and a storage component; the heat absorption component comprises a heat absorption disc movably installed below the supporting frame, a heat exchange pipe installed in the heat absorption disc, air return boxes installed at the two ends of the heat absorption disc in a sliding mode, first pipe fittings communicating with the two air return boxes correspondingly and a heat absorption fan arranged in the first pipe fittings, and purification mechanisms are arranged in the two air return boxes. The storage component comprises a second pipe fitting, a storage tank and a flow dividing pipe communicating with the lower end of the storage tank, and a monitoring mechanism is arranged in the storage tank. According to the waste heat recycling system, waste heat generated in the casting process can be efficiently recycled and stored in the storage tank to be reused, the waste heat recycling system has the advantages of being energy-saving, environmentally friendly, high in heat exchange efficiency, high in adaptability and the like, recycling of energy is achieved, and the production cost is reduced.

The application discloses a sludge flash drying system integrated with a fluidized bed gasification furnace, which comprises a wet sludge conveying subsystem, an outlet of the wet sludge conveying subsystem is communicated with an inlet of a sludge flash drying subsystem, an outlet of the sludge flash drying subsystem is connected with an inlet of a gas-solid separator, an outlet of the gas-solid separator is communicated with an inlet of a dry sludge conveying subsystem, an outlet of the dry sludge conveying subsystem is communicated with an inlet of a fluidized bed gasification furnace subsystem, an outlet of the fluidized bed gasification furnace subsystem is communicated with a gas-gas heat exchanger, an outlet of the gas-gas heat exchanger is communicated with an inlet of an external combustion chamber, and an outlet of the external combustion chamber is communicated with a drying gas inlet of the sludge flash drying subsystem. The application recycles the heat value generated in the sludge gasification process for sludge flash drying, so that the energy consumption is low, and the economic cost of system operation is reduced. Due to the high sludge drying efficiency and the strong sludge disposal capacity, the resourceization, reduction and efficient clean utilization of sludge can be realized.

The invention provides a double-flue external heating type gasification device, which comprises a furnace body, a heat exchanger, a heat exchanger, a heat exchanger, a heat exchanger, a heat exchanger and a heat exchanger, wherein an accommodating space is formed in the furnace body; the outer furnace wall is arranged on the outer side of the furnace body, and an outer flue is formed between the outer furnace wall and the furnace body; the flue gas pipeline is vertically mounted in the accommodating space, and the upper part of the flue gas pipeline is communicated with the outer flue through a pipe fitting; the flue gas supply assembly is installed below the flue gas pipeline and suitable for providing flue gas into the flue gas pipeline from the lower portion, and the flue gas rises in the flue gas pipeline and then is discharged downwards from the bottom through the outer flue through a pipe fitting. The two-way heating device can indirectly and uniformly perform two-way heating on gasification raw materials flowing downwards and gasification agents flowing upwards in the containing space, so that the gasification raw materials are subjected to gasification reaction, the temperature of the containing space is kept high in the process that flue gas is discharged through the outer flue, sufficient gasification reaction is facilitated, and the gasification efficiency is improved.