91 results about "Dry heat" patented technology

The invention discloses a vegetation vulnerability constraint estimation method and system under dry-heat composite stress. The vegetation vulnerability constraint estimation method comprises the following steps: 1, acquiring observed vegetation total primary productivity data, meteorological data and similar meteorological data of each lattice point in a global climate mode; 2, determining a standardized rainfall evapotranspiration index time scale of each lattice point and determining dominant stress types of different lattice points in growing seasons; 3, respectively constructing two-dimensional Copula models of corresponding dominant stress and total primary productivity, and determining a stress threshold value corresponding to induced vegetation loss; 4, calculating future estimation of dominant stress based on a climate mode, and constructing an emergence constraint model; 5, correcting a future estimated mean value and uncertainty of the dry heat stress index based on the emergence constraint relation; and 6, inputting the corrected mean value and uncertainty range of the future dry heat stress indexes into a Copula model, and calculating a corresponding loss probability. According to the method, the response difference of different vegetation ecosystems to dry heat stress is considered while the prediction accuracy of the drought heat waves and the compound events thereof is improved.

The invention discloses an automatic shell-making wire environment simulation system. The system comprises an environmental parameter testing unit, a heat and mass transfer model establishing unit and an optimization processing unit. The environmental parameter testing unit is used for testing environmental parameters influencing the drying process of the shell-making drying cabin through testing equipment, evaluating the uniformity of airflow in the drying cabin and the change condition of the environmental parameters, and sending testing and evaluating results to the heat and mass transfer model establishing unit; the environmental parameters at least comprise wind speed. And the heat and mass transfer model building unit is used for building a shell drying heat transfer model and a shell drying mass transfer model, evaluating the shell drying heat transfer model and the shell drying mass transfer model based on the model expression indexes after building is completed, and analyzing the influence of the environmental parameters on shell heat transfer and mass transfer based on the information transmitted by the environmental parameter testing unit. And the optimization processing unit is used for introducing the influence of load, airflow in the drying cabin and air into the established shell drying heat transfer model and shell drying mass transfer model for simulation and optimization.

The invention relates to the technical field of dry-type heat exchanger equipment, in particular to a dry-type heat exchanger assembly for a water chiller, which comprises a front shell and a rear shell which are detachably connected through bolts. A supporting frame is fixedly arranged in the rear shell, the supporting frame is connected with the inner wall of the rear side of the rear shell through four fixing rods, a coil pipe is erected, and the coil pipe is sleeved with a plurality of fins. A cleaning mechanism is arranged at the top of the rear shell, comprises a supporting block, a sliding block, a brush plate and a driving assembly and is used for automatically cleaning dust on the surfaces of the coil pipe and the fins. A ventilation hole is formed in the front side wall of the front shell, a fan is installed, a dust filtering mesh cover capable of being conveniently disassembled is arranged, a groove is formed in the rear side of the dust filtering mesh cover and slidably connected with the sealing strip in an inserted mode, and clamping grooves in the two sides are matched with a clamping mechanism to achieve rapid assembly and disassembly. Impurities are effectively intercepted through the dust filtering mesh cover and the clamping mechanism, and the pollution speed and the cleaning frequency of the heat exchange coil pipe are reduced; meanwhile, an automatic cleaning and blowing system is integrated, the cleaning efficiency is improved, and the heat exchange effect and the continuous operation reliability of equipment are guaranteed.

A method for cleaning hot air closed loop synchronous drying / cold drying granules, taking three-machine shaft unit of expander, compressor and auxiliary motor as pivot, using expander to cool and dehumidify drying fluidized bed tail gas, then using cold drying fluidized bed to cold dry granules under negative pressure, using compressor to pressurize and heat cold drying fluidized bed tail gas to heat and dry granules through drying fluidized bed, thus forming a closed loop system, expander cooling and dehumidification provides cold drying medium and outputs power to reduce the power consumption of coaxial compressor, compressor provides necessary fluid dynamics conditions for two-phase flow of granule fluidization drying and provides drying heat, heat and power consumption are combined, so as to reduce drying energy consumption, converted to unit total energy consumption (electricity) is not more than 0.83 kWh / kg-water, and there is no waste gas emission and no noise interference.

The utility model provides a vacuum drying system utilizing waste heat of low-temperature flue gas of a coal-fired boiler. Comprising a horizontal vacuum dryer, an air pre-heater, a flue gas waste heat absorber, a boiler, a dust remover, a vacuum condenser, a vacuum pump, a circulating water pump, a low-pressure heater set, a measuring instrument, a vacuum drainage tank, a data processing and control system, a vacuum feeding device, a vacuum discharging device and a flow regulating valve. The hot water prepared by the flue gas waste heat with lower temperature is used as a drying heat source, and is used for heating wet materials in the vacuum disc dryer, so that the heat utilization efficiency of the waste heat is high; a hollow disc is used as a dryer in a drying machine cavity, and the occupied area of the whole equipment is much smaller than that of a traditional belt type drying machine; due to low pressure, the boiling point of water is reduced, a saturated state is easily achieved, the internal and external water pressure difference of sludge is increased, and the water migration efficiency is improved; therefore, the vacuum drying time is shorter than the drying time under normal pressure and micro-negative pressure, and the equipment size can also be controlled.

The invention provides a continuous forming production line for a non-electroplating golden imitation metal PET sheet, and belongs to the technical field of golden imitation metal PET sheet production. Comprising a processing chamber and a cleaning chamber, the processing chamber and the cleaning chamber are communicated and form the front portion of the production line, and a dust-free area and an air arch area are arranged in the processing chamber. By arranging the self-adaptive drying device and the wind power generation device, plasma wind generated by the wind power generation device and external airflow are mixed and blown to a heated metal net, a cleaning agent on the surface of a base material is dried, meanwhile, in the drying process, the self-adaptive drying device can enable drying heat to be dynamically matched with the humidity of the base material, and the drying efficiency is improved. And meanwhile, positive and negative charges in the air flow can neutralize metal dust with charges on the surface of the base material, remove static electricity on the surface of the base material and blow off the metal dust on the surface of the base material, so that the effect of secondarily cleaning the base material is achieved, and the machining precision of a final product is improved.

The utility model discloses a metal matrix composite material drying and heat preservation device, particularly relates to the technical field of drying and heat preservation, and comprises a drying box, a plurality of drying lamps are arranged at the top of the inner wall of the drying box, mounting plates are arranged on the two sides of the inner wall of the drying box, and a plurality of grooves are formed in one side of each mounting plate. And heating resistance wires are arranged in the multiple grooves, a containing plate is arranged at the bottom of the inner wall of the drying box, and a containing mechanism is arranged on the front side of the drying box. Through the arrangement of the placing mechanism, when the metal-based composite material is placed in the drying box for drying and heat preservation, an operator does not need to manually clean the surface of the metal-based composite material; instead, a brush plate and a blowing connecting pipe in the placing mechanism can be used for cleaning in the process of placing the metal-based composite material in the placing mechanism, so that the use convenience of the device is obviously improved.

The utility model discloses a heat stress simulation open top box, and relates to the technical field of forestry and plant ecology. The heat stress simulation open top box comprises a first FRP sunlight plate (fiber reinforced plastic plate), the top of the first FRP sunlight plate is provided with a closing mechanism, and the top of the first FRP sunlight plate is provided with a transmission mechanism. According to the heat stress simulation open-top box, the temperature in the first FRP sunlight plate can be controlled by arranging a rotating ring, firstly, when an air temperature sensor senses that the temperature in the first FRP sunlight plate is low, a temperature intelligent controller starts a motor to drive a lead screw to control the second FRP sunlight plate to rotate, the second FRP sunlight plate is subjected to screwing and closing-up treatment, and the heat stress simulation open-top box is formed; when the air humidity sensor senses that the air humidity in the first FRP sunlight plate is high, the dehumidifier is started through the humidity intelligent controller to reduce the air humidity, and the device can conveniently control the temperature and humidity in the first FRP sunlight plate to achieve the purpose of simulating dry and hot and humid and hot environments.

The application is suitable for the technical field of household appliances, and provides a drying module and a clothes processing device. The drying module comprises a main drying air duct and a moisture absorption and removal assembly arranged in the main drying air duct and used as a drying heat source. The moisture absorption and removal assembly is used as the drying heat source in the main drying air duct, so that the condenser of an additional heat pump system in the main drying air duct is saved, the structural complexity and cost of the clothes processing device are simplified, the moisture absorption and removal assembly absorbs water vapor in air in the main drying air duct, the dehumidification efficiency in the main drying air duct is improved, the released adsorption heat in the moisture absorption process is used for heating the air in the main drying air duct, the air entering the drum is kept in a suitable temperature range, a complicated temperature control structure is not needed, the structure is simplified and the cost is reduced, and low temperature and high drying efficiency are maintained.

The invention discloses an intelligent thermal shrinkage rate detection all-in-one machine and method for customizing garment fabric, and belongs to the technical field of customizing garment fabric detection.The intelligent thermal shrinkage rate detection all-in-one machine for customizing garment fabric comprises a detection box, and the inner wall of the detection box is of a heat insulation and preservation structure; a boiling water detection cabin, a dry heat detection cabin and a damp heat detection cabin are arranged in the detection box, the dry heat detection cabin is arranged at the top of the boiling water detection cabin, and the damp heat detection cabin is arranged at the side edge of the dry heat detection cabin; heating parts are arranged at the bottoms of the boiling water detection cabin and the dry heat detection cabin; one side of the boiling water detection cabin, one side of the dry heat detection cabin and one side of the damp heat detection cabin are provided with long-strip-shaped openings, cabin doors are correspondingly arranged at the position of the detection box, cloth to be detected is arranged in the detection box, the detection box is of a square structure, the top of the detection box is of an open structure, and the bottom of the detection box is of a screen structure capable of ventilating or passing water.

The utility model relates to the technical field of cooling devices, and discloses a cooling tower and a cooling system.The cooling tower comprises a mounting support, a heat exchange pipeline, a first cooling module and a second cooling module, and the first cooling module and the second cooling module are arranged in the length direction of the mounting support; the first cooling module comprises a first draught fan and a water cooling assembly, the second cooling module comprises a second draught fan and heat dissipation fins, the first draught fan and the second draught fan are arranged on the installation support, the heat exchange pipeline penetrates through the water cooling assembly and the heat dissipation fins, the first draught fan blows towards the water cooling assembly, and the second draught fan blows towards the heat dissipation fins. And the second fan blows to the heat dissipation fins. The cooling tower aims at solving the technical problem that a dry type heat dissipation part and a wet type heat dissipation part are integrated in the same air channel, and heat dissipation fins are prone to scaling.

The utility model discloses detection equipment for quick-drying heat dissipation fabric, which comprises a detection frame, water spraying simulation devices are mounted on the upper side and the lower side of the detection frame, and a heat dissipation fabric pressing device is mounted at the lower end of the detection frame. According to the utility model, the heat dissipation fabric is pressed and fixed by installing the heat dissipation fabric pressing device, and the heat dissipation fabric is further pressed by the first semicircular raised lines and the second semicircular raised lines which are arranged up and down and staggered, so that the heat dissipation fabric is prevented from being pulled down due to the gravity of water during water spray detection; the wetting condition of the heat dissipation fabric in rainy days is simulated through water sprayed by the water spray nozzles and air blown out by the fan, the humidity of the heat dissipation fabric is recorded according to time changes, the heat dissipation fabric is dried through the additionally-arranged hot-air blower, the height of the hot-air blower is changed by adjusting the air cylinder, and then the temperature change is changed. And the drying condition of the heat dissipation fabric is recorded according to different temperatures.

The invention discloses a fabric drying thermal power intelligent control method and system based on moisture rate feedback driving, and relates to the field of thermal power intelligent control. Firstly, data such as the fabric running speed, the current thermal power and the outlet actually-measured moisture rate are collected, and the fabric drying process is dynamically deduced through an algorithm model based on a self-adaptive predictor; therefore, the time-delay-free predictive tidal rate without the influence of the transmission time delay is obtained. And on this basis, a decoupling error between the time-delay-free predicted moisture rate and a set target moisture rate is calculated, the error is input into a PID controller for operation, and an accurate thermal power adjustment amount is calculated to drive a heating actuator. In the process, time domain dislocation caused by physical distance is effectively overcome, repeated adjustment and energy waste caused by feedback lag are avoided, and the stability of drying control and the consistency of product quality are remarkably improved.

This utility model relates to a drying heat recovery device applied in the field of drying technology. It includes a heat exchange component, a condensation component fixedly connected to the lower end of the heat exchange component, and a condensate tank fixedly connected to the lower end of the condensation component. The heat exchange component includes a mounting shell, with an air inlet and an air outlet fixedly connected to the upper end of the mounting shell. The air inlet is located to the left of the air outlet. A partition is fixedly connected to the inner cavity of the mounting shell, dividing the mounting shell into two channels: a cooling channel on the left and a heating channel on the right. By adding a phase change substance inside the heat pipe, the synergistic effect of phase change heat transfer and tube bundle condensation effectively achieves the graded recovery of sensible and latent heat in the drying exhaust gas. This lowers the dew point of the recovered water vapor gas, allowing it to reabsorb moisture from the material and recirculate into the dryer to dry the material. This allows some of the residual heat to be used again in the dryer, further improving the latent heat recovery effect.

The application discloses a kind of water-soluble pulp dot array dynamic drying device and method, it is related to water-soluble pulp production technical field.The present application mainly includes dryer, exhaust pipe, first shunt branch pipe, second shunt branch pipe, humidity treatment pipe, gas collecting tank, hot air return pipe, backflow branch pipe, injection branch pipe and the like structure.The present application is injected by external injection pipe external dry air flow, according to the moving direction of water-soluble pulp and carries out step-by-step temperature rising type horizontal air flow drying, and heated dry air flow is discharged through exhaust pipe, and carries out humidity detection, and the hot air flow that meets the drying requirement is introduced into gas collecting tank, and carries out secondary temperature detection, according to the air flow reference temperature required by each drying air flow guide groove, carries out the highest standard hot air flow recycling, to improve the drying efficiency of water-soluble pulp, also guarantee the drying forming quality of water-soluble pulp, also relatively efficient recycling of dry heat energy lost.

The invention discloses a waste heat flue gas sludge drying system and a control method thereof.The system comprises a drying box and further comprises a control module, and the control module correspondingly controls a conveying belt and a surge tank according to real-time detection results of an inlet temperature detection device, an outlet temperature detection device and a humidity detection device; waste heat flue gas is introduced into the flue gas channel in the drying box, sludge to be dried is conveyed to the conveying belts at all positions in the drying box, sludge drying is achieved through the drying heat exchange process of the sludge in the drying box and the waste heat flue gas in the flue gas channel, and redundant heat energy of the waste heat flue gas is effectively utilized; according to the sludge drying device, the sludge is effectively dried, consumption of redundant heat energy is reduced, meanwhile, high carbon emission and high operation cost caused by depending on steam, natural gas or coal-fired boiler heat supply are reduced, the effective drying cost is low, and carbon emission pollution can be effectively reduced.

A system and method separate a process fluid stream into a liquid phase carbon dioxide stream and a carbon dioxide depleted stream containing a remaining light gas. The systems and methods use a drying heat exchanger to contact a process fluid stream with a dryer contact liquid to remove moisture from the process fluid stream. The gaseous process fluid stream is separated from the wet dryer contact liquid stream and directed to an extraction heat exchanger where it is contacted with an extraction contact liquid such that carbon dioxide is removed from the process fluid stream while forming a processed process fluid stream and a carbon dioxide enriched extraction contact liquid stream.

A dry-wet combined heat exchange device includes a rack, a plate-shaped dry heat exchanger and a plate-shaped wet heat exchanger. A placement cavity is formed in the rack. A first ventilation opening extends vertically through the top of the placement cavity, and a second ventilation opening extends horizontally through one or more sides of the placement cavity. The plate-shaped dry heat exchanger is obliquely arranged in the placement cavity to divide the placement cavity into an upper cavity and a lower cavity, and has an upper plate surface facing the first ventilation opening and a lower plate surface facing at least one second ventilation opening. The plate-shaped wet heat exchanger is disposed at and transverse to the first ventilation opening and / or at least one second ventilation opening.

The present application belongs to the technical field of heating equipment, and discloses a system and method for heating by utilizing the heat of flue gas of a heating furnace. The system comprises a heating furnace and a waste heat utilization device. The heating furnace comprises a furnace body and a furnace core fixedly arranged in the furnace body. The waste heat utilization device comprises a dry heat dissipation module and a heat absorption water tank module. The dry heat dissipation module comprises an upper heat dissipation tank, a lower heat dissipation tank and a heat dissipation pipe. The heat absorption water tank module comprises a heat exchange tank and a flue gas heat dissipation tank. A water jacket is formed between the inner wall of the heat exchange tank and the outer wall of the flue gas heat dissipation tank. A plurality of water pipes are fixedly arranged in the flue gas heat dissipation tank and are in communication with the water jacket. The method comprises adapting different fuels by setting different furnace cores and furnace cans, and adapting different heat utilization scenarios by selecting and matching the dry heat dissipation module and the heat absorption water tank module. The present application has the advantages of flexible adaptation to different fuels and different heat utilization modes, free combination according to real-time requirements, high practicability and high commercial value.

A dry heat type air source heat pump system belongs to the field of heating air conditioning. The condenser outlet and inlet of the heat pump unit are respectively communicated with the heating water supply pipeline and the water return pipeline. The evaporator outlet and inlet of the heat pump unit are respectively communicated with the intermediate water supply pipeline and the water return pipeline. The intermediate circulating pump is installed on the intermediate water return pipeline. The inlet of the surface cooler is communicated with the intermediate water supply pipeline. The outlet of the surface cooler is communicated with the intermediate water return pipeline. One end of the heat storage heat exchanger is communicated with the heating water return pipeline through the heat storage primary water supply and return pipeline. Two communication points are located between the heat pump unit and the heating circulating pump. The other end of the heat storage heat exchanger is communicated with the hot water tank through the heat storage secondary water supply and return pipeline. The defrost water supply pipeline is communicated with the outlet of the cold and hot water tanks. The defrost water return pipeline is communicated with the inlet of the cold and hot water tanks. The application realizes the cold and hot diversion of the refrigerant in the surface cooler through the increase of the defrost branch, and solves the problems of long heating time of the antifreeze, large energy consumption and large heat loss of the air heat exchanger during defrosting.

The utility model discloses a preserved fruit airing room with drying and heat supplying functions, which relates to the technical field of preserved fruit drying appliances and comprises a box body, first air chambers are arranged on two sides of the front end of the box body, a second air chamber is vertically arranged in the middle of the rear end of the box body, an air suction chamber is arranged on the upper portion of the front end of the box body, and a mounting chamber is arranged at the rear end of the second air chamber. According to the preserved fruit drying device, through cooperation of the first air chamber, the second air chamber, the first hot air fan and the second hot air fan, warm air can be conveniently conveyed into the drying chamber to dry preserved fruits, and the drying efficiency of the preserved fruits is improved; through cooperation of an exhaust fan and an air suction chamber, damp and hot water vapor in the drying chamber is conveniently sucked into the air suction chamber, and the drying effect of the preserved fruits is improved; through cooperation of the condensing device and the guide pipe, water-vapor separation is conveniently achieved, separated high-temperature gas enters the heating device through the gas outlet pipe to be recycled, the high efficiency of heat recycling is improved, energy consumption is reduced, and finally the problem that heat cannot be recycled is solved.

The invention relates to the field of disposable tableware, and discloses a structure of a paper take-out meal box and a drying and heat preservation scheme of the paper take-out meal box. A damp-proof structure (5) with a through hole (7) is arranged in the meal box main body (1), a dry heat preservation bag (3) is arranged between the damp-proof structure (5) and the box wall, and the heat preservation bag is activated by pulling away the protective film (4) through the pulling opening (6). The heat preservation bag has the advantages that heat release reaction is triggered by food steam without adding water, food and the heat preservation bag are isolated by the moisture-proof structure, heat preservation lasts for 60 minutes, more than 1 L of condensed water is absorbed, and the problems that takeout food becomes cold, and steam condensation affects taste are solved.

To provide a resin composition excellent in light guide performance under an LED light source and also excellent in long-term durability (dry heat resistance) under a high-temperature environment, and a molded article comprising the same.SOLUTION: A polycarbonate resin composition contains (A) a polycarbonate resin (component A), (B) a triarylphosphine-based compound (component B) represented by the following formula [1], and (C) a pentaerythritol diphosphite-based compound (component C). The content of the component B is 0.005-0.3 pt.wt. and the content of the component C is 0.001-0.3 pt.wt. based on 100 pts.wt. of the component A.SELECTED DRAWING: None

The application provides a heat exchange device and an air source heat pump system with the same, relates to a heating device technical field, and through the design of the heat exchange device, the flow guide air duct can generate slit airflow, which plays a role of flow guiding on heat exchange airflow which needs to pass through the heat exchange device heat exchange main body, and the heat exchange airflow obtained after flow guiding is mixed with slit airflow and / or room temperature air, and then is blown out through the air outlet of the heat exchange device. The airflow is enlarged through blowing, soft air outlet is realized, the problem that the air outlet temperature is high in the prior art and dry heat feeling is easily generated is solved, the device is matched with the function of the electric auxiliary heating device, the uniform air outlet effect is realized, the heating mode of mainly radiating heating supplemented by air forced convection is realized, noise is greatly reduced, the device is narrow, the air outlet is closer to the ground, heating is more comfortable, and the appearance is small and beautiful.

The utility model belongs to the field of oil painting cloth drying rod, especially, relate to an oil painting cloth drying oven convenient to fix oil painting cloth. The utility model provides an oil painting cloth drying oven convenient to fix oil painting cloth, include: drying box, the front end opening is hinged with the box door of lock catch through hinged joint, the bottom of drying box is equipped with hot -blast component, fixed mechanism is located in drying box inner chamber for fixing oil painting cloth, the fixed mechanism includes: fixed frame, both ends are slidably penetrated with two T type rods, the both ends of fixed frame inboard two T type rods are fixedly connected with connecting plate, the adsorption cooperation of first magnet plate and second magnet plate simplifies oil painting cloth fixed operation, reduces fixed time -consuming, and the cooperation of spring and T type rod can assist the adjustment canvas tension, benefit guaranteeing stress even, hot -blast component provides drying heat source simultaneously, and even component drives oil painting cloth rotation, makes each area of canvas heat more even, reduces the wrinkle after drying, promotes subsequent coating effect and finished product quality.

The utility model discloses a drying heat preservation conveyor, which relates to the drying field and comprises a rack, a conveying belt is mounted on the rack, a driving component is mounted at the bottom of the rack, and the driving component is suitable for driving the conveying belt to operate on the rack; the drying box body is mounted on the rack; the heat source body comprises a heating box and a fixing box, a heating cavity is formed in the heating box, the fixing box is installed at the bottom of the heating box, and the bottom of the fixing box communicates with the drying box body; the turnover mechanism comprises a position plate, a fixing seat and a turnover motor, and a transmission component is installed at the output end of the turnover motor; two groups of sliding track plates are arranged on the fixed seat, a turnover plate is mounted on the two groups of sliding track plates, and the turnover plate slides and turns over on the sliding track plates; a bending opening is formed in the end, facing the advancing direction of the conveying belt, of the sliding rail plate and is suitable for abutting against the overturning plate, and the technical problems that workpieces are difficult to continuously overturn and dry and need to be fixed are solved.

The utility model relates to the technical field of high-temperature sterilization equipment, in particular to an air dry heat type high-temperature sterilizer which comprises a heating section, a heat exchange section and a cooling section, the heating section comprises a heating outer pipe, a heating inner pipe and an electric heating bar, the heating inner pipe is sleeved with the heating outer pipe, the electric heating bar is inserted into the heating inner pipe, and the heat exchange section is connected with the cooling section. The heat exchange section comprises a heat exchange inner pipe and a heat exchange outer pipe, the cooling section comprises a cooling inner pipe and a cooling outer pipe, one end of the heat exchange outer pipe is provided with an air inlet, the other end of the heat exchange outer pipe is connected with the heating inner pipe, one end of the heat exchange inner pipe is connected with the heating outer pipe, and the other end of the heat exchange inner pipe is connected with one end of the cooling inner pipe. The other end of the cooling inner pipe is an air outlet, a cold water inlet is formed in one end, close to the air outlet, of the cooling outer pipe, and a cold water outlet is formed in the other end, close to the air inlet, of the cooling outer pipe. The sterilization device has the advantages of being good in sterilization effect, high in sterilization efficiency, free of an independent sterilization cavity, capable of directly acting on bacteria through high temperature, thorough in sterilization and the like.

The utility model provides a multi-loop electric energy meter suitable for an extreme environment. The multi-loop electric energy meter suitable for the extreme environment comprises a multi-layer sealing protective shell, an integrated multi-loop metering module and a heat-conducting temperature-equalizing unit, wherein the integrated multi-loop metering module and the heat-conducting temperature-equalizing unit are arranged in the multi-layer sealing protective shell; the heat conduction and temperature equalization unit is used for conducting heat of a heating element of the integrated multi-loop metering module to the outer surface of the multi-layer sealing protective shell and finally dissipating the heat to the external environment. According to the utility model, the multi-layer sealing protective shell is combined with the labyrinth seal and the low-temperature-resistant rubber ring, so that the invasion of high sand wind, rain, snow and condensation is effectively resisted, and the cleanness and dryness of the internal environment of the multi-layer sealing protective shell are ensured; meanwhile, the multi-loop electric energy meter can bear extremely cold, high dry heat and strong ultraviolet radiation due to the weather-resistant material of the outer-layer protective shell, the wide temperature range stability of the inner-layer supporting framework and the buffering effect of the middle heat insulation layer, the structure is not embrittled, not deformed and not aged, and the service life of the multi-loop electric energy meter is prolonged. And the long-term operation reliability and the service life in extreme environments in regions such as Xinjiang and the like are improved.

The invention discloses a water-saving fog-dissipation dry-wet alternating semi-closed cooling tower, which belongs to the technical field of cooling towers, and comprises a tower body and a filler, the filler is arranged in the tower body, the filler comprises a plurality of dry heat exchange channels and a plurality of wet heat exchange channels, and the plurality of dry heat exchange channels and the plurality of wet heat exchange channels are distributed in a staggered manner. The adjacent wave filler plates are stacked in the reverse direction to form a transverse flowing air duct, and the side gaps of the adjacent wave filler plates used for dry heat exchange are sealed, so that a structural form that dry heat exchange channels and wet heat exchange channels are distributed in a staggered mode is formed in the filler; according to the invention, the same filler realizes two modes of dry and wet heat exchange, so that more heat exchange pipelines are omitted, and the cost is greatly reduced; the limiting protrusions and the limiting grooves are additionally arranged on the wave packing plate, reverse stacking is greatly facilitated, and accurate positioning during installation is achieved.

The invention relates to the technical field of fiber preparation, and discloses a production method for efficiently preparing flame-retardant monofilaments, which comprises the following steps: performing surface activation on a polyamide matrix through radio frequency plasma, and directionally introducing carboxyl functional groups; carrying out surface grafting modification on the composite flame-retardant master batch by adopting a silane coupling agent to construct an interface transition layer; the water content of the raw materials is regulated and controlled through a microwave-airflow combined drying system; gradient distribution of the flame retardant is realized by adopting a double-channel spinning assembly; the preparation method comprises the following steps: synergistically dispersing a nano reinforced phase and a flame retardant to construct a three-dimensional network structure, and forming primary monofilaments through a spinning assembly; the crystal structure is regulated and controlled through two-stage stretching of wetting pre-orientation and dry heat main orientation; and the fiber structure is stabilized by adopting a segmented temperature-control thermal relaxation process, so that a monofilament finished product with flame retardance is prepared. By means of the synergistic effect of plasma activation, gradient spinning and staged orientation, efficient and continuous production of the flame-retardant monofilaments is achieved.