75 results about "Wet steam" patented technology

According to the method and system for calculating the efficiency of the low-pressure cylinder of the steam turbine on line, under the reference working condition and multiple working conditions, parameters such as steam pressure, temperature and back pressure of an inlet and an outlet of a first stage, a second stage and a third stage of the low-pressure cylinder are collected, the efficiency of each stage and the efficiency of the low-pressure cylinder are calculated, dimensionless processing is carried out, and the efficiency of the low-pressure cylinder is calculated; and establishing a multiple regression model which takes the superheated steam stage efficiency as an independent variable and takes the low-pressure cylinder efficiency as a dependent variable. And considering the influence of the back pressure on the efficiency of the low-pressure cylinder, establishing a compensation model, and correcting the predicted efficiency of the low-pressure cylinder. In actual operation, the parameters are collected in real time, the efficiency of the current stage is calculated and substituted into the regression model and the compensation model, and the real-time efficiency of the low-pressure cylinder is obtained. According to the method, direct measurement of wet steam parameters is avoided by utilizing superheated steam stage data which are easy to obtain, real-time and accurate calculation of the efficiency of the low-pressure cylinder under different working conditions is realized, and the method can be widely applied to performance monitoring, operation optimization and fault diagnosis of a turboset.

The invention provides a drying device and a drying method for curing desulfurization wastewater. The drying device comprises a steam feeding valve and a tower body, the tower body comprises an inner tower body and an outer tower body, and a steam channel is formed between the inner tower body and the outer tower body; the steam feeding valve is arranged at the top of the tower body, a steam inlet of the steam feeding valve is connected to a high-pressure bypass pipeline of a boiler in the coal-fired power plant unit, and a steam outlet of the steam feeding valve is communicated to the steam channel; a cooling steam outlet is formed in the lower part of the outer tower body; a first isolation plate and a second isolation plate which are provided with communicating holes are sequentially arranged in the inner tower body from top to bottom, so that the inner tower body is divided into a dry spraying area, a particle crushing area and a cyclone separation area which are sequentially communicated from top to bottom; and the flue gas purification device is used for sequentially introducing the flue gas purification device to atomize, evaporate and solidify the desulfurization wastewater to generate ash particles, crush the ash particles into ash powder and separate flue gas and the ash powder. According to the drying device and the drying method, energy of high-pressure wet steam in the high-pressure bypass pipeline is transferred and recycled by coupling the high-pressure bypass pipeline, and damage to a filter bag in a bag-type dust collector during tower heating is avoided.

The present invention relates to a process for cooling and for the use of environmental heat, where the following steps are carried out, implemented in a thermodynamic machine: a) the working fluid being in steam state is adiabatically expanded (1-2), b) the working fluid being in wet-steam state is separated according to state into liquid (0) and steam (3) components, c) the temperature of the working fluid being in steam state (3) is increased by adiabatic compression (3-4), d) the working fluids of liquid (0) and steam (4) are compressed (4-1) and mixed at the same time, keeping the temperature of the steam (4) at a constant level by means of the compression, and generating steam (1) of stable state through the evaporation of the liquid (0), e) the process is repeated periodically.

The utility model relates to the technical field of wastewater treatment, and particularly discloses a heat pump system with a separator. A water collecting screen; and a driving mechanism. A plurality of baffle plates alternately and intermittently rotate downwards and are matched with elastic rotation of an upper baffle plate, so that the baffle plates rotate upwards after rotating downwards, the baffle plates shake in the process, and water intercepted by the baffle plates and a water collecting net plate falls down, flows along the baffle plates and is finally discharged from a water discharging pipe; in this way, water can be effectively prevented from being attached to the surfaces of the baffle plates and the water collecting net plates, dried steam is prevented from touching the water again to become wet steam, the steam exhausted from the exhaust pipe is kept in a dry state, and the heat conduction performance and the heat exchange efficiency of the steam are prevented from being reduced.

The invention discloses a recycling system and method for a photovoltaic module, and belongs to the technical field of harmless and resource treatment of retired photovoltaic modules. The recovery processing system of the photovoltaic module comprises a pyrolyzing furnace, a wet steam oxidation furnace and a cooling furnace, a discharge port of the pyrolyzing furnace is connected with a feed port of the wet steam oxidation furnace, and a discharge port of the wet steam oxidation furnace is connected with a feed port of the cooling furnace; molten salt heating pipes are arranged in the pyrolyzing furnace in the circumferential direction. The invention further provides a photovoltaic module recycling method which comprises the following steps: conveying the photovoltaic module into the pyrolyzing furnace, and staying at 450-550 DEG C for 20-40 minutes; then the photovoltaic module enters a wet steam oxidation furnace, the temperature of water vapor is 200-250 DEG C, and the photovoltaic module stays for 20-40 min; and then the photovoltaic module enters the cooling furnace to be cooled and output. The system provided by the invention can realize separation of a large complete glass plate and a high-quality silicon battery piece.

The utility model provides cooking equipment which comprises a base, a steam generating assembly, a steam dryer and a steamer, the steam generating assembly is located in the base, the steam dryer is arranged on the base, the steam dryer is provided with a drying cavity, and the drying cavity is communicated with the steam generating assembly. The steamer is arranged on the steam dryer or the base and provided with a cooking cavity, and the cooking cavity is communicated with the drying cavity. According to the cooking equipment, the drying cavity can dry wet steam, so that moisture in the steam is removed or reduced, the steam flowing to the cooking cavity does not contain moisture or contains less moisture, so that the steam discharged out of the cooking equipment from the cooking cavity is not easy to form condensed water, and the condensed water is prevented from corroding a cabinet.

The invention provides a crystallizer and a crystallization method for evaporation of desulfurization wastewater. The crystallizer comprises a steam feeding valve and a tower body; the tower body comprises an inner tower body and an outer tower body which are spaced to form a steam channel; the steam feeding valve is arranged at the top of the tower body, a steam inlet of the steam feeding valve is connected to a high-pressure bypass pipeline of a boiler in a coal-fired power plant unit, and a steam outlet of the steam feeding valve is connected to the steam channel; a cooling steam outlet is formed in the lower part of the outer tower body; a flue gas uniform distribution area, a drying spraying area, a particle crushing area and a cyclone separation area which are communicated with one another are sequentially arranged in the inner tower body from top to bottom, and the inner tower body is used for introducing flue gas, evaporating and curing desulfurization wastewater fog drops formed by introduced compressed air and desulfurization wastewater by utilizing the flue gas to generate ash particles, crushing the ash particles into ash powder and separating the flue gas and the ash powder. According to the crystallizer and the crystallization method, energy of high-pressure wet steam in the high-pressure bypass pipeline is transferred and recycled by coupling the high-pressure bypass pipeline, and damage to a filter bag in a bag-type dust collector during tower heating is avoided.

The application discloses a high-temperature wet steam dehumidifying device for drying equipment, which comprises a drying box, a heat exchange box arranged on one side of the drying box, a first pipeline arranged in the heat exchange box, a condenser communicated with the drying box through the first pipeline, a heating box arranged below the drying box, the condenser communicated with the heating box through a second pipeline, the second pipeline arranged in the heat exchange box, and heat exchange between the second pipeline and the first pipeline. The high-temperature wet steam generated during the drying of triazole is dehumidified, so that the problem that the heat contained in the high-temperature wet steam of the product dried by using the heated gas flushing in the existing drying equipment is difficult to be recycled due to the high humidity, thereby causing high energy consumption is solved.

The invention relates to a humidity control method and a fresh air conditioning system, and belongs to the technical field of air conditioning, the fresh air conditioning system comprises a shell, a multi-stage drying decompression device and a steam diffusion pipe, and the left end and the right end of the shell are provided with a steam inlet and a steam outlet respectively; the multi-stage drying and pressure reducing device is detachably arranged in the shell and used for receiving wet steam at the steam inlet, the multi-stage drying and pressure reducing device converts the wet steam into dry steam through the multi-stage throttling expansion effect of the multi-stage drying and pressure reducing device, and the dry steam is discharged through the steam outlet; the steam diffusion pipe is connected to a steam outlet of the shell and is used for diffusing the dry steam; the multi-stage drying and pressure reducing device has the beneficial effects that multi-stage pressure reducing and drying are carried out through the multi-stage drying and pressure reducing device, atmospheric pressure and dried steam are discharged from the steam outlet, and the air humidity in the environment can be well maintained.

The utility model relates to the technical field of steam production, and discloses a steam generator for producing dry steam, which is characterized in that a water channel is arranged in a first-stage thick film heating pipe, and the first-stage thick film heating pipe heats water flowing into the water channel into wet steam; a steam channel is arranged in the second-stage thick film heating pipe, and the second-stage thick film heating pipe heats wet steam conveyed by the water channel into dry steam. The first-stage thick film heating pipe and the second-stage thick film heating pipe are of an integrated connection structure. According to the steam generator, the first-stage thick film heating pipe and the second-stage thick film heating pipe are integrated into an integrally-connected structure, and a water-steam separator does not need to be additionally connected, so that all components of the steam generator for preparing dry steam are relatively concentrated, and the size is relatively small; and the advantages of high power density, high heating speed, high working temperature, high temperature rise rate, high mechanical strength, small size, convenience in installation, uniformity in heating, long service life, energy conservation, environment friendliness and the like of the thick film heating bodies forming the first-stage thick film heating tube and the second-stage thick film heating tube are fully utilized.

The invention belongs to the field of film evaporators, and relates to a distributor for strengthening axial airflow transportation, which comprises a cylindrical rotor and a plurality of rows of scrapers arranged on the periphery of the rotor, all the scrapers are uniformly distributed around the central axis of the rotor, and each scraper is connected with the periphery of the rotor through a support plate; the contact area of each supporting plate and the periphery of the rotor is a spiral line, each supporting plate is composed of a plurality of rectangular areas which are sequentially arranged along the spiral line, the long edge of each rectangular area is perpendicular to the periphery of the rotor, the short edge of each rectangular area coincides with the spiral line, and all the supporting plates are evenly distributed around the center axis of the rotor. According to the distributor provided by the invention, the supporting plate is obliquely arranged, so that the axial airflow conveying capacity in the distributor can be improved, the accumulation of wet steam is reduced, negative effects on the distribution uniformity of distributed feed liquid are avoided, the production efficiency is favorably improved, the energy consumption can be reduced, and the distributor has an important application prospect.

The present invention aims to provide a food waste treatment device maximizing heat exchange efficiency. In an embodiment, a food waste treatment device is provided, including: a main body part; a drying part provided inside the main body part, including a drying cylinder for accommodating food and a heating part for heating the drying cylinder; a crushing part installed inside the drying cylinder for crushing the food; a cover part provided to cover the main body part, including a sub-cover opening and closing an open upper surface of the drying cylinder and a main cover integrally combined with the sub-cover through a first elastic part; a condensing part connected with the inside of the drying cylinder through the cover part, provided with a condenser for capturing and condensing wet steam inside the drying cylinder; and a condensed water collecting part connected with the condenser for storing condensed water generated by the condenser.

This invention provides a steam generator in which the heat generated by fuel combustion is conducted through the furnace shell to the water in the cavity, heating the water. The water circulates within the convection tubes and the cavity, ensuring uniform heat transfer and promoting stable steam generation. Simultaneously, the flue gas generated in the furnace shell undergoes radiative heat exchange before entering the first convection flue through the flue gas outlet ring. There, it exchanges heat with the inner side of the convection tubes and the boiler shell. The flue gas then enters the second convection flue, where it veers upwards, scouring the outer side of the convection tubes for further convective heat exchange. Finally, the flue gas enters the flue gas chamber, scouring the outer cylinder of the steam collector to heat the wet steam, drying it and significantly improving its dryness. This multi-pass utilization of the flue gas heat significantly improves heat exchange efficiency while reducing heat waste. Furthermore, by welding the outer cylinder of the steam collector to the top of the furnace shell, the support of the steam collector for the furnace shell is strengthened, thereby improving the safety of the steam generator.

The invention discloses a humidity adjusting device and a plateau intelligent wet steaming room, and relates to the technical field of indoor air humidification. Comprising a room body inner container, a top plate arranged at the top end of the room body inner container, an arc-shaped temporary storage box slidably mounted at the top end of the room body inner container along a circumferential track and a sliding supporting structure arranged at the bottom end of the top plate and used for guiding the arc-shaped temporary storage box to circumferentially slide, and a humidifying pipe set is mounted at the bottom end of the arc-shaped temporary storage box; a pumping unit used for conveying steam into the arc-shaped temporary storage box is installed at the bottom end of the room body inner container. By means of steam accumulation of the arc-shaped temporary storage box, dynamic deflection of the gear rocking-turn assembly and local humidification of the double-side angle following type humidification assembly, the problem that humidity is uneven due to the fact that a steam supply point is fixed is effectively solved, and the temperature and humidity are comprehensively adjusted through cooperation with the temperature and humidity control panel; uniform and stable control of humidity and temperature in the wet steaming room is realized.

The invention discloses a turbine exhaust enthalpy measuring and calculating method based on a heat exchanger dynamic model. The turbine exhaust enthalpy is calculated by utilizing actual monitoring data of a unit; the method comprises the following steps of: solving regenerative steam extraction capacity and steam flow of a steam turbine at each stage in a superheated steam area by utilizing actual monitoring data in the superheated steam area of the steam turbine, and constructing a steam turbine stage group steady-state model, a condenser dynamic model and a low-pressure heater dynamic model in a wet steam area; and the regenerative steam extraction capacity of each stage and the steam flow of the turbine in the wet steam area are indirectly obtained. The exhaust enthalpy value of the steam turbine is indirectly measured and calculated through the model and actual monitoring data, the problem that in the prior art, the exhaust enthalpy value of the steam turbine cannot be obtained when last-stage steam extraction of the steam turbine is wet steam is solved, and a basis can be provided for safe and reliable operation of a steam turbine thermodynamic system.

The application discloses a recycling system and method of photovoltaic modules, and belongs to the harmless and resourceful disposal technical field of retired photovoltaic modules. The recycling system of the photovoltaic modules comprises a pyrolysis furnace, a wet steam oxidation furnace and a cooling furnace; a discharge port of the pyrolysis furnace is connected with a feeding port of the wet steam oxidation furnace, and a discharge port of the wet steam oxidation furnace is connected with a feeding port of the cooling furnace; and a molten salt heating pipe is arranged in the pyrolysis furnace in a circumferential direction. The application further provides a recycling method of the photovoltaic modules, which comprises the following steps: conveying the photovoltaic modules into the pyrolysis furnace, and stopping at 450-550 DEG C for 20-40 min; then the photovoltaic modules enter the wet steam oxidation furnace, the water vapor temperature is 200-250 DEG C, and stopping for 20-40 min; and then the photovoltaic modules enter the cooling furnace for cooling and output. The system provided by the application can realize the separation of large and complete glass plates and high-quality silicon battery pieces.

The utility model relates to the technical field of heavy oil recovery in alpine regions, in particular to a wet saturated steam gas-liquid two-phase ratio measuring system which comprises a main pipeline, a sampling cooler and a control system. The sampling cooler is provided with a cooling liquid inlet pipeline, a cooling liquid outlet pipeline, a sample feeding pipeline and a sample discharging pipeline; a metering pump and a first temperature transmitter are arranged on the cooling liquid inlet pipeline; a third temperature transmitter is arranged on the cooling liquid outlet pipeline; the sample introduction pipeline is connected with the main pipeline; a second temperature transmitter and a flow meter are arranged on the sample outlet pipeline; a pressure transmitter is arranged on the main pipeline; and the control system is respectively in communication connection with each device and instrument. The system can measure the gas-liquid two-phase ratio of the wet steam injected in the thickened oil recovery process, so that the gas-liquid two-phase ratio of the wet steam can be monitored and controlled in real time, and energy conservation and consumption reduction are facilitated.

The invention relates to an oil field mixed gas injection device, which belongs to the technical field of oil field gas injection, and comprises an oil field gas injection boiler, a steam-water separator and a mixing pipe, the oil field gas injection boiler is provided with a wet steam outlet, a dry steam inlet and a superheated steam outlet; the steam-water separator is provided with a wet steam inlet, a dry steam outlet, a hot water outlet and a drain outlet; the wet steam outlet is communicated with the wet steam inlet; the dry steam outlet is communicated with the dry steam inlet; a hot water inlet communicated with the hot water outlet is formed in the pipe wall of the mixing pipe, and the first end of the mixing pipe is communicated with the superheated steam outlet. The steam-water separator is firstly used for carrying out steam-water separation on wet steam generated by the oil field boiler, then hot water and superheated steam are fully mixed in the mixing pipe to form high-temperature and high-pressure mixed hot fluid, the high-temperature and high-pressure mixed hot fluid is injected into a heavy oil field through the second end of the mixing pipe, the heating and viscosity reduction efficiency of heavy oil releasing can be remarkably improved, the exploitation time is shortened, and the production efficiency is improved. The mining progress is accelerated.

The utility model relates to the technical field of shield segment maintenance in building construction equipment, and discloses a shield segment constant-temperature and constant-humidity steam maintenance device which comprises a maintenance chamber and a bearing plate. The outer walls of the multiple steam pipes are fixedly connected with multiple nozzles arranged in a linear array, one side of the interior of the curing chamber is fixedly connected with a temperature and humidity detector, and one side of the curing chamber is fixedly connected with a steam box. According to the constant-temperature and constant-humidity steam curing device for the shield segment, through the arrangement of the steam pipes, the spray heads and the temperature and humidity detector, the steam pipes in an annular array and the spray heads in a linear array are arranged, it is ensured that steam is evenly distributed in the curing chamber, and the steam can be evenly sprayed in multiple directions; and it is ensured that the shield segment is heated and wetted evenly in all directions, it is ensured that all parts of the shield segment can be subjected to the sufficient steam effect, and therefore the maintenance effect is improved.

The application discloses a humidity adjusting device and a plateau intelligent wet steam room, relates to the technical field of indoor air humidification, and comprises a room body inner container, a top plate arranged at the top end of the room body inner container, an arc-shaped temporary holding box slidingly arranged at the top end of the room body inner container in a circumferential track, and a sliding support structure arranged at the bottom end of the top plate and guiding the circumferential sliding of the arc-shaped temporary holding box, wherein the bottom end of the arc-shaped temporary holding box is provided with a humidifying pipe group, and the bottom end of the room body inner container is provided with a pumping unit for conveying steam into the arc-shaped temporary holding box. The application utilizes steam accumulation of the arc-shaped temporary holding box, dynamic deflection of the gear swinging assembly and local humidification of the double-side angle following type humidification assembly, effectively solves the humidity uneven problem caused by fixed steam supply points, and realizes uniform and stable control of humidity and temperature in the wet steam room by cooperating with comprehensive adjustment of the temperature and humidity control panel.

The invention discloses a wet steam humidity measuring device and method based on a wet steam cooling effect. The wet steam humidity measuring device comprises a metal wire, a temperature / speed probe and a processor, the temperature / speed probe is arranged at the upstream of the metal wire; the metal wire is electrically connected with the processor; the temperature / speed probe is electrically connected with the processor. According to the device and the method, the metal wire can be used for measuring the humidity of wet steam.

This invention provides a multi-condition test platform for a fuel cell gas supply system operating in both dry and wet conditions. The platform includes a replaceable and adjustable base, a staged cooling and localized temperature / flow control system, a variable humidity steam supply system, and an online data acquisition system. The replaceable and adjustable base is equipped with a target model air compressor according to the test objectives and requirements. The staged cooling and localized temperature / flow control system regulates the actuators in the coolant and hot air pipelines of the air compressor. The variable humidity steam supply system humidifies the working fluid before, between, and before the vortex stage of the air compressor. The online data acquisition system is connected to the staged cooling and localized temperature / flow control system and the variable humidity steam supply system, receiving real-time data on the working fluid temperature, pressure, relative humidity, and mass flow rate at measurement points during the experiment. This invention significantly simplifies the complexity of the test system piping, enabling the development of upper and lower computer control programs and optimization algorithms, and ensuring online control of humidity during wet compression and wet expansion.

This invention discloses a steam-water separation and reheating device, comprising a shell, a steam inlet pipe, a nozzle, an ejector pipe, and a swirl plate. A steam inlet is welded to one side of the upper end of the shell, and a subcooled water outlet is provided at the lower end. An ejector pipe is installed inside the shell, with a steam outlet extending from the top of the shell at its upper end. The lower part of the ejector pipe is connected to the nozzle via a steam inlet flange, and the lower end of the nozzle is connected to the steam inlet pipe. A new steam inlet is provided after the steam inlet pipe extends from one side of the shell. A swirl plate is welded to the outside of the ejector pipe. The steam-water separation and reheating device of this invention has no moving parts, and compared to the original structure, it can more effectively improve the dryness and kinetic energy of the residual steam, remove water droplets from inside the wet steam, and effectively protect the internal flow structure of downstream equipment.

The invention relates to the technical field of online monitoring, in particular to an online monitoring system and method for a last-stage blade of a steam turbine, and the system comprises a data collection module, a preprocessing module, a feature fusion module and an early warning module. The data acquisition module synchronously acquires vibration data, temperature data and stress data through a wet steam corrosion resistant broadband acceleration sensor array, a platinum resistor temperature sensor, a thermal infrared imager and a fiber grating sensor. The feature fusion module is divided into three stages of processing, wherein a harmonic distortion factor, a local overheating intensity coefficient and a rain flow damage cumulant are screened and extracted in the first stage; a second-level space-time convolutional neural network constructs a multi-physics field incidence matrix to generate a failure mode confidence score; and the third-level comparison finite element model outputs a physical verification mark. And the closed-loop self-correction mechanism feeds back the early warning result to update the characteristic parameters, so that an anti-interference enhanced data processing closed loop is formed.

The utility model provides a quick-heating dry and wet steam sauna furnace, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The quick-heating dry-wet sauna stove comprises a body with a cavity inside and an opening at the upper end, and further comprises a plurality of stop levers, a base plate, a heating pipe and a fan, the plurality of stop levers are parallelly and adjacently connected in the body in the horizontal direction, and the plurality of stop levers form a blocking part in the body; the base plate is fixedly connected to the inner side of the body and located on the lower portion of the blocking rod, a plurality of heating pipes are connected to the base plate and evenly distributed in a cavity between the blocking part and the bottom of the body, a penetrating through hole is formed in the lower portion of the body, and the draught fan is connected to the through hole and enables airflow to continuously enter the body from the outside of the body. The quick-heating dry-wet sauna stove is high in stability.

The utility model discloses a double-evaporation gravity water turbine cooling tower which comprises a tower body, a water turbine assembly, a cooling assembly, a first evaporation assembly, a second evaporation assembly and a connecting assembly. According to the utility model, wet air evaporated for the first time is forcibly fed into the Venturi tube outside the tower by utilizing the water turbine fan, negative pressure is formed in the tower and the tube, external air is mixed with wet steam in the tower, so that the purpose of secondary evaporation cooling is achieved, and cooling water evaporated for the first time in the tower is cooled by utilizing the slender cooling tubes. And under the action of gravity, negative pressure is formed at the lowest end, and the negative pressure is quickly sprayed out through the nozzle and is mixed with fed primary steam to form secondary evaporation, so that cooling is facilitated, and a large amount of water is saved.

The invention provides a precision forging method for a low-pressure section small blade of a 2Cr13 martensitic stainless steel steam turbine, which aims at the problem of water drop erosion in a low-temperature wet steam environment, and comprises the following steps: by taking 2Cr13 martensitic stainless steel as a raw material, carrying out stepped heating to 600-800 DEG C for preheating, carrying out initial forging at 1100-1150 DEG C, carrying out die forging forming and finish forging at 900-1050 DEG C, enabling the forging ratio to be greater than or equal to 3, quenching at 980-1050 DEG C for oil cooling, and carrying out graded tempering at 580-650 DEG C, thereby obtaining the low-pressure section small blade of the 2Cr13 martensitic stainless steel steam turbine. Through cooperative control over rapid cooling after tempering, a uniform and fine tempered sorbite structure is obtained; according to the method, material characteristics are deeply coupled with forging and heat treatment full-process parameters, so that the blade has high strength and high toughness, the water drop erosion resistance is remarkably improved, meanwhile, the technical problems that 2Cr13 is poor in heat conductivity, grains are prone to coarsening and temper brittleness is caused are solved, the method is complete in process chain and controllable in parameter, and the method is suitable for precise manufacturing of the complex variable-cross-section blade and has wide application prospects. Good industrial application prospects are realized.

The invention belongs to the technical field of steam rotary furnaces, and particularly relates to a novel sodium carbonate heavy ash self-returning steam rotary furnace which comprises a furnace body, one end of the furnace body is connected with a furnace end, and the furnace body is arranged downwards in an inclined mode from the furnace end to the tail of the furnace body. A feeding device is arranged at the furnace head and used for conveying materials into the furnace body, the tail of the furnace body is connected with a discharging cover, the discharging cover is used for discharging finished product materials, at least one spiral material returning pipe is arranged on the outer wall of the furnace body, an inlet of the material returning pipe is in butt joint with a material returning opening in the furnace tail of the furnace body, and an outlet of the material returning pipe is in butt joint with a material returning opening in the furnace tail of the furnace body. An outlet of the material returning pipe is positioned on the material mixing section of the furnace body on the furnace end side; a moisture-carrying gas inlet is formed in the discharging cover and is used for introducing moisture-carrying gas; a furnace steam exhaust port is formed in the furnace end cover and used for exhausting wet steam making contact with materials, the moisture-carrying gas is added, so that the water vapor concentration in the furnace steam is reduced, and the furnace steam system cannot be blocked even at the temperature of 100 DEG C or below.

The utility model discloses a steam generator for wet steam dehumidification. A steam inlet and a steam outlet are formed in the two ends of an upper tank body; the dehumidification assembly comprises a plurality of first disc bodies and second disc bodies which are alternately arranged in a sealed and stacked mode in the axial direction of the upper tank body. A central through hole is formed in the first disc body, and a plurality of first steam flow channels extending outwards from the central through hole are formed in the front surface of the first disc body; a central blind hole is formed in the front surface of the second disc body, and a plurality of second steam flow channels extending outwards from the central blind hole are formed in the front surface of the second disc body; the central blind hole is communicated with the central through hole in the adjacent upper layer; a communicating hole is formed in the tail end of the second steam flow channel on the second disc body; and a plurality of groups of dense array parts are arranged in the first steam flow channel and the second steam flow channel at intervals. According to the utility model, the conveying path of wet steam can be prolonged in a three-dimensional space, the collision frequency of the wet steam is increased, the dehumidification effect of the wet steam is effectively improved, the overall structure size can be reduced, and the dehumidification operation requirement of the wet steam is effectively met.

The invention discloses a tow processing nozzle based on stepped steam diffusion and a multifunctional modification method, and relates to the technical field of spinning processing.The nozzle comprises a body and at least two layers of orifice plates arranged in a steam runner of the body in the flow direction; compared with the upstream orifice plate, the downstream orifice plate has smaller through hole diameter and more through holes, so that a stepped steam diffusion channel is formed. According to the method, humidifying steam or mixed steam carrying a functional medium is sprayed to the surface of a tow at a specific angle through the nozzle. Through a unique stepped diffusion structure, the problems of non-uniform steam jet flow and high energy consumption are solved, and the uniformity and stability of tow modulus regulation and control are improved; meanwhile, by introducing a functional medium, integrated modification of multiple functions such as coloring, static resistance and degradation assistance is achieved, the production process is simplified, the equipment cleaning time is shortened, wastewater discharge is reduced, and the industrial application value is remarkable.