130results about How to "Heating up fast" patented technology

A cell for producing biological organic fertilizer fermented mainly by sucrose filtered mud is disclosed, which is characterized by weight percentage of components are: yeasts 30%-35%, streptomyces 30%-35%, bacillus 30%-40%. Using the inventive cell for producing biological organic fertilizer, temperature increases fast when fermenting, filtered mud in sugar factory decomposes rapidly, and produced biological organic fertilizer is stable in quality.

The invention discloses a high purity smelting method for a nickel-based high-temperature alloy. The method mainly comprises the following steps: performing mother alloy smelting under high purity argon shield, performing mother alloy refining under high vacuum, and obtaining the nickel-based high temperature alloy with low impurity content. Because high-frequency induction heating is performed through water-cooling copper crucible equipment, and high-purity argon is introduced in the mother alloy smelting process, the alloy can be effectively prevented from being oxidized, impurity elements are prevented from entering, and burning loss of volatile elements is reduced. In addition, the equipment can realize rapid temperature rise and reduction, the high-impurity high-purity nickel-based high temperature alloy can be obtained in the process of mother alloy refining, and the method for smelting the nickel-based high temperature alloy is mainly applied to preparing a miniature sample of the nickel-based high temperature alloy.

A pipeline electric heating rapid water boiler comprises a water storage tank, a pipeline heater, a main control panel and a power supply, wherein the pipeline heater is connected to a water inlet pump; the water inlet pump is connected to a water quality detector; the water quality detector is connected to a water level control box; the water level control box is connected to a water inlet solenoid valve; the water inlet solenoid valve is connected to a water inlet; and a signal input end of the main control panel is respectively connected to a water level sensor, the water quality detector,a temperature sensor and a control button. The pipeline heater water channel and the water inlet pump are used for forming parallel backflow gradually heated hot water so as to promote the boiling speed, rise temperature rapidly, generate water of 95 to 99 DEG C in 3 to 5 seconds, save waiting time, boil water on demand without boiled water wastage, and save time and energy source. The main control panel using a CPU chip can automatically control water boiling, can prevent parching by the water level control and the low level alarm, can control the purity of the boiled water through monitoring the water quality and can meet the hygienic standard demand of drinking water safety.

The invention discloses a platen machine which comprises a gantry frame and a compacting mould. The compacting mould is composed of multiply heating platens (2a), and an elastic connecting element (2b) is arranged between two adjacent heating platens. Each heating platen (2a) is hollow inside. A heat-exchanger tube (2a1) is arranged inside the platen machine, and the heat-exchanger tube (2a1) is connected with a heat transfer oil circulating system. Guide pillars (1a1, 1ab) used for guiding the multiply heating platens (2a) are arranged on the gantry frame. The platen machine also comprises a buffer device (3) which is fixedly connected on the bottom portion of the beam (1c) of the gantry frame, and is connected with the top layer heating platen of the multiply heating platens of the mould. The compacting mould is driven by a hydraulic cylinder (6) on the bottom portion of the compacting mould. A piston rod (6a) of the hydraulic cylinder is connected with the bottom layer heating platen. The platen machine can be used for compacting multiply wood plates each time, and compacting efficiency is high. Due to the fact heat transfer oil is adopted to transfer heat to the wood plates, the wood plates are heated up quickly, heat is distributed evenly, glue cement among the wood plates is enabled to solidify rapidly, compacting quality is high, and compacting speed is fast.

The invention discloses a temperature control device. The temperature control device comprises a silicon wafer carrying portion, a plurality of light heating portion, a temperature measuring portion and a temperature control portion. The silicon wafer carrying portion comprises a technical cavity, a base and a rotating mechanism, wherein the base keeps a silicon wafer horizontal, and the rotating mechanism rotates the base. The light heating portions emit light to the silicon wafer so as to form a plurality of heating areas on the surface of the silicon wafer and comprise a plurality of first linear heaters and second linear heaters, wherein the first linear heaters and the second linear heaters are parallelly distributed on the upper side and the lower side of the outside of the technical cavity and perpendicular to one another in the horizontal direction. The temperature measuring portion comprises a plurality of temperature sensors used for measuring the temperature of the heating areas and is arranged in the technical cavity at the positions corresponding to the heating areas. The temperature control portion is used for controlling the output power of the light heating portions according to the outputted temperature of the temperature sensors and the target temperature of the heating areas. The temperature control device is capable of accurately controlling quick heating and cooling of the silicon wafer and can guarantee temperature uniformity of the points inside the silicon wafer.

The invention relates to an intelligent graphene cosmetic massage device. The intelligent graphene cosmetic massage device comprises a cosmetic massage device assembly, a control box and a mobile phone application client, wherein the cosmetic massage device assembly is used for performing vibrating heating on a medical film by means of a graphene heating source and a massage vibration motor and performing cosmetic massage on the face of a user; the control box is fixed on the cosmetic massage device assembly and is used for regulating the cosmetic massage device assembly and supplying power to the cosmetic massage device assembly; the mobile phone application client is installed on a mobile phone of the user and used for communicating with the control box to control the cosmetic massage device assembly, record time and share states. Compared with the prior art, the intelligent graphene cosmetic massage device has the advantages that the device is convenient to use, can perform heating quickly, has high electricity conversion rate, controls the temperature accurately and the like.

The invention discloses a method for quickly reducing the height of a converter bottom. By utilizing the technological characteristics that the temperature rises quickly and a furnace clinker with thehigh FeO content is produced after reaction through the reaction of molten iron and oxygen, the thermodynamic conditions of high temperature and high FeO content required by eroding furnace bottom steel slags are met. Meanwhile, high-pressure oxygen is blown into a furnace through an oxygen lance, so that furnace bottom residual steel slags are favorably eroded and peeled off with the help of a favorable dynamic condition that an oxygen stream washes and stirs the furnace bottom steel residues. According to the method, on the premise of ensuring the safe, stable and efficient production of aconverter, the height of the converter bottom can be effectively reduced. Meanwhile, the method has the characteristics of high efficiency, low cost, safety and reliability.

The invention relates to an eddy current heating high temperature mechanical testing device, which belongs to the technical field of mechanical testing and relates to a mechanical testing device for rapidly heating a sample by using an eddy current technique to obtain a high temperature testing environment. The device adopts eddy current rapid heating to meet the requirements of high-rate temperature rise and wide temperature zone heating of the sample in a high temperature mechanical test. An airtight box structure is adopted, and a vacuum pump is used for vacuum pumping to meet vacuum environment requirements. Upper and lower chucks adopt the overall structure, which is good for neutrality and have small measurement errors. The device consists of a clamping unit, a loading unit, a heating and cooling unit, an airtight box, and a reference frame. The device has the characteristics of rapid sample temperature rise, large applicable temperature zone, high heating efficiency, compact structure and simple operation. The device has good neutrality, reduces measurement errors, and has high testing accuracy. An aerospace high temperature thermal shock environment can be accurately simulated, and the mechanical experiments of high temperature materials are completed.

The invention provides a graphene spontaneous heating floor, a manufacturing method and a low-voltage spontaneous heating floor system. The graphene spontaneous heating floor sequentially comprises anabrasion resisting layer, a surface decoration layer, an upper insulation inflaming retarding and temperature resisting waterproof layer, an upper base material floor layer, a lower base material floor layer, a lower insulation inflaming retarding and temperature resisting waterproof layer and a heat insulation layer from top to bottom. The upper surface of the lower base material floor layer isprovided with at least one groove. The grooves are internally paved with graphene heating elements and conducting circuits. The two ends of each conducting circuit are connected with connector clips.The connector clips of each conducting circuit are both connected with an independent control unit. The upper surface of the upper base material floor layer is provided with a plurality of blind holes, and magnet columns are embedded into the blind holes. The graphene spontaneous heating floor has the beneficial effects that a graphene material is adopted for conducting heat, the temperature is raised quickly, and heat conduction is uniform; and each floor is an intelligently-integrated independent unit, zone control of the indoor temperature is achieved, the energy consumption is reduced, andthe service life of the floor is prolonged; and graphene releases far infrared rays, by cooperating with the magnet therapy characteristics of magnets, the graphene spontaneous heating floor strengthens the physical body, protects health and is beneficial to family health.

The invention relates to an air heating reflux system for low-temperature starting of a fuel cell. The system is used for accelerating low-temperature starting of the vehicle fuel cell. The system comprises a sensor assembly, a fuel cell stack, an outlet back pressure valve, an air filter, an air compressor, an intercooler and a humidifier, the air filter, the air compressor, the intercooler and the humidifier are successively connected through pipelines, and the humidifier is connected with the outlet back pressure valve and the inlet and the outlet of the fuel cell stack through pipelines; the system further comprises a heater, an inlet three-way valve arranged between the air filter and the air compressor, and an outlet three-way valve arranged between the humidifier and an outlet of the fuel cell stack, the inlet three-way valve is connected with the outlet three-way valve through a pipeline, and the heater is arranged between the inlet three-way valve and the outlet three-way valve. Compared with the prior art, the system has the advantages that rapid heating, normal starting and working of the fuel cell can be achieved without adding a large amount of additional accessory equipment.

The invention relates to a novel process and device for dewaxing in precision casting production, in particular to a dewaxing device and process. The technical scheme provided by the invention is that: the dewaxing device comprises a dewaxing box body, wherein fire resistant materials are paved on a bottom surface of the interior of the dewaxing box body; resistance wires connected with a power source are distributed on the fire resistant materials; a container support plate and a wax mould support plate are sequentially arranged from bottom to top in the dewaxing box body above the resistance wires; a heat-conducting container is placed on the container support plate; and small holes are arranged in the container support plate and the wax mould support plate. The dewaxing device and process provided by the invention have the advantages of adopting a technological method of heating right amount of water by utilizing ordinary resistance wires; and by means of the method, the problems that the water consumption of a boiler is large, the temperature rise is slow and the energy utilization is low are solved.

The invention provides a rapidly-heating heat recovery type temperature-adjusting heat pump drying device and an operation method thereof. The rapidly-heating heat recovery type temperature-adjusting heat pump drying device comprises a heat pump system, an air channel, a sensible heat recoverer, a circulating centrifugal fan and an air filter, wherein the sensible heat recoverer, the circulating centrifugal fan and the air filter are arranged in the air channel. The heat pump system comprises a compressor, an outdoor multifunctional heat exchanger, a condenser and a dehumidification evaporator, wherein the outdoor multifunctional heat exchanger is arranged outside the air channel and provided with an axial flow fan, and the condenser and the dehumidification evaporator are arranged in the air channel. According to the rapidly-heating heat recovery type temperature-adjusting heat pump drying device, the outdoor multifunctional heat exchanger is arranged, the flowing direction and flow distribution of a refrigerant are changed through a control valve, and thus the closed-type drying heat pump device can rapidly conduct heating at the low temperature and rapidly cool at the high temperature, so that the different drying room temperature requirements are met, and the refrigeration dehumidification and drying process is more sustainable, stable and reliable and saves more energy.

The invention relates to a fast food heating device container, a heater and a heating agent. The fast food heating device container comprises an inner bowl (1) and an outer bowl (2), the inner bowl (1) is arranged in the outer bowl (2), and the heater (4) capable of having a heating reaction with a water solution is arranged in a gap between the bottom of the inner bowl (1) and the bottom of the outer bowl (2). According to the fast food heating device container disclosed by the invention, the heater capable of having the heating reaction with the water solution is arranged in the gap betweenthe bottom of the inner bowl and the bottom of the outer bowl, thus the heater can realize the advantages of high starting speed, high heating speed, high temperature, durable heat insulation and thelike when being used for heating fast foods.

The invention discloses a heat homogenizing method based on a heat conducting graphite film for floor heating, and particularly relates to a heat homogenizing method which is used for building floor heating and adopts a heat conducting graphite film serve as a heat homogenizing layer and laid above heating media. The heating media comprise hot water pipes and heating cables. According to the heat homogenizing method based on the heat conducting graphite film for floor heating, the excellent heat conducting property of the heat conducting graphite film is fully utilized, the heat conducting graphite film is laid above the heating media according to the different heat conducting direction property of the heat conducting graphite film and the thermodynamic principle, and in this way, the temperature of a heating space can rise faster, the ground temperature is more uniform. By the adoption of a floor heating system adopting the heat homogenizing method, the temperature of the heating space rises fast, the ground temperature is uniform, and the method is simple. The price is quite low if the heat conducting graphite film based on natural graphite is adopted.

Herein is described a method for the heating-up of a ceramic glow plug by applying a variable electric voltage to the glow plug. In accordance with the invention it is provided that, starting from a base value, the electric voltage increases in a time-averaged manner superproportional to the elapsed heating-up time. The invention relates also to a glow plug control unit for carrying out of such a method.

The invention provides an indoor unit of a wall-mounted air conditioner. The indoor unit of the wall-mounted air conditioner comprises a shell body and a volute, wherein the shell body is provided with an air inlet port and an air outlet port; an air outlet air channel communicating the air inlet port with the air outlet port is limited in the volute; the air outlet air channel is provided with anupper air channel wall and a lower air channel wall; the upper air channel wall comprises a bent curved section located at the front side; the front end of the bent curved section and the front end of the lower air channel wall limit an air outlet port; the bent curved section is formed to be in the shape of guiding downwards airflow in the air outlet air channel, so that the airflow blown out via the air outlet port flows downwards; and therefore, downward-blowing for hot air under a heating mode is realized, heating in an indoor lower-layer space is accelerated, and the heating experience of a user is improved.

The present invention relates to an apparatus, which can be part of a pre-treatment system in a plant for the production of fuels, e. g. bio-ethanol, derived from plant biomass, e. g. first generation crops, such as grain, sugarcane and corn or second generation crops such as lignocellulosic biomass. The invention relates to an apparatus for processing, such as fluffing and mixing, at least two media, such as a solid, e. g. biomass, and a fluid, e. g. steam, so as to rendering the first medium susceptible to efficient receiving of energy and/or mass which is provided by localized release of the second medium. Although the description of the present invention focuses on biomass, it is envisaged that the invention is generally applicable to control the mixing of at least two media by crossing their stream of while dispersing at least one of them.

The invention provides a double heating, refrigerating, water heating and dehumidifying system. The system is characterized by comprising a multifunctional air conditioning unit and a hot-water heat exchange system with a hot-water radiator, wherein the multifunctional air conditioning unit with a five-cycle hot-water air conditioner has the functions of hot wind making, water heating, air cooling and dehumidifying; the multifunctional air conditioning unit consists of a compressor, two four-way valves, three heat exchangers and a rectification three-way throttle; and a refrigerating agent loop connection is formed in a way that first, second, third and fourth ports of the first four-way valve are connected with the compressor, the first port of the second four-way valve, an indoor air heat exchanger and a gas-liquid separator respectively; second, third and fourth ports of the second four-way valve are connected with an outdoor air heat exchanger, a hot water heat exchanger and the gas-liquid separator; the gas-liquid separator is connected with the compressor; the outlet of the hot water heat exchanger is connected with the inlet of a third one-way valve and the outlet of a third solenoid valve; the two ends of a first capillary tube are connected with the parallel connected end of outlets of three one-way valves and the inlet of the third solenoid valve and the parallel connected end of the inlets of the first and second solenoid valves; the two ends of a second capillary tube are connected with the outlet of the first solenoid valve, and the parallel port of the inlet of the first one-way valve and the outdoor air heat exchanger; and the outlet of the second solenoid valve is connected in parallel with the inlet of the second one-way valve and the indoor air heat exchanger.

The invention discloses a multiple drying tunnel type oven having a waste gas filtration function. The multiple drying tunnel type oven consists of a drying box, a ventilation box and a filtration box from the top down; a gas exhaust pipeline communicates the drying box with the filtration box; a far-infrared radiation lamp tube and a material conveying mechanism are arranged in the drying box; a horizontal air intake channel is formed in the ventilation box, and communicates the drying box with the filtration box; an electric heating wire is arranged below the horizontal air intake channel; a cooling liquid pipe, a waste gas exhaust pipe and a waste gas absorption solution are arranged and contained in the filtration box; gas vents are distributed in the waste gas exhaust pipe; and the gas exhaust pipeline is connected with the waste gas exhaust pipe in the filtration box through an air pump. The multiple drying tunnel type oven has the following advantages that (1) the far-infrared radiation lamp tube and the electric heating wire are arranged reasonably, multiple drying is realized, and the drying efficiency is high; (2) by employing hot air circulation, energy can be saved; (3) waste gas generated after a material is dried is filtered directly without emission, so that environmental protection is facilitated; (4) the generated waste gas is recycled, so that the production cost is lowered; and (5) the multiple drying tunnel type oven is compact in structure and convenient to use.

The invention provides a heating plate of a flat vulcanizing machine, which is formed by an electric heating film. An upper heat-conducting plate is arranged on the upper side of the electric heating film, while a lower heat-conducting plate is arranged on the lower side of the electric heating film; the upper heat-conducting plate and the lower heat-conducting plate are made of copper alloy materials respectively; insulating layers are arranged between the electric heating film and the upper heat-conducting plate and between the electric heating film and the lower heat-conducting plate respectively; and the insulating layers are made of a mica material; and the edge of the lower heat-conducting plate is turned upwards after the edge of the lower heat-conducting plate is beyond the edge of the electric heating film, and encircles the edge of the upper heat-conducting plate. The copper alloy material contains copper, zinc, stannum and manganese. A rubber belt can be heated and vulcanized evenly by the upper heat-conducting plate and the lower heat-conducting plate. The upper heat-conducting plate and the lower heat-conducting plate formed by the copper alloy material can conduct heat quickly and evenly, and have the advantages of pressure resistance, heat resistance and corrosion resistance. The electric heating film is quickly heated after the electric heating film is electrified. The rubber belt can be heated and vulcanized evenly through the upper heat-conducting plate and the lower heat-conducting plate.

The invention provides a method for preparing ammonia-removing activated carbon. The method comprises the steps that a, a raw material of activated carbon is subjected to microwave activation after being acidized; and b, a cobalt salt solution is added to achieve modification. According to the method, microwaves are utilized to heat and then the activated carbon is activated, microwave heating belongs to internal heating, the temperature can be increased rapidly, no temperature gradient exist in a microwave field, the activated carbon is heated evenly and the heating efficiency is high. The activated carbon is rapidly heated in the microwave environment, and the temperature of the activated carbon is increased rapidly, the properties of surface functional groups change, and then the activated carbon is reactivated.

The invention discloses a preparation method and application of a polymeric phosphato aluminum iron chloride coagulant under a micro-wave irradiation condition. The method comprises the steps of: based on aluminum polychloride and FeCl3.6H2O as main materials, adding water to dissolve and evenly mixing; then adding disodium hydrogen phosphate solution to adjust the molar ratio of phosphorus to ferro-aluminum; putting into a microwave reactor to radiate and heat, so as to polymerize under a microwave condition; taking out from the microwave reactor; adding NaOH solution to adjust the alkalization degree and continuing to react for a period of time under the condition of a water bath; and finally curing at normal temperature to obtain polymeric phosphato aluminum iron chloride. The prepared polymeric phosphato aluminum iron chloride coagulant can be widely applied to treatment of source water, and treatment of industrial wastewater and domestic wastewater; and the function is superior to that of common aluminum polychloride and ferric polychloride. The polymeric phosphato aluminum iron chloride disclosed by the invention can effectively reduce the turbidity and UV254 of a water body in feedwater treatment; and the polymeric phosphato aluminum chloride iron disclosed by the invention has good removal effect on the turbidity, chemical oxygen demand (COD) and total phosphorus in domestic wastewater and industrial wastewater.

The invention discloses an air conditioner and a control method and device thereof. The air conditioner comprises a heat exchange air channel and an air treatment device. The air treatment device comprises a shell and a fresh air fan, a fresh air inlet and a main air outlet are formed in the shell, and air entering an air treatment air channel from the fresh air inlet is guided to the main air outlet through the fresh air fan. The control method comprises the steps that when the air conditioner operates in a heating mode, if the indoor environment temperature is lower than the first preset temperature, and the outdoor environment temperature is lower than the second preset temperature, the fresh air fan is controlled to stop guiding the air entering the air treatment air channel from the fresh air inlet to the main air outlet, when the indoor environment temperature is higher than the third preset temperature within the first preset time, the fresh air fan is controlled to guide the air entering the air treatment air channel from the fresh air inlet to the main air outlet, thus, quick temperature rising can be achieved when the indoor environment temperature is low, moreover, fresh air is exchanged after the temperature is raised, and the experience of a user is improved.

The invention relates to the field of safety testing for power supply devices, in particular to a battery safety experiment tool and system. The battery safety test tool comprises an induction heatingtool including a box body, an induction coil, an induction heating power supply, and a processor. The induction coil is used for heating a battery after being electrified to realize a battery thermalinstability experiment; the induction heating power supply connected with the induction coil is used for providing power for the induction coil; and the processor connected with the heating power supply is used for adjusting the output power of the heating power supply. The induction coil is arranged outside the box body; and the induction heating power supply and the processor are arranged inside the box body. The battery safety experiment system is composed of an electronic terminal and the battery safety experiment tool; and the electronic terminal carries out communication with the battery safety experiment tool. With the battery safety experiment tool and system, when the thermal instability experiment of the battery is carried out, the temperature of the battery rises quickly; moreover, the experiment operation becomes simple and the single thermal out-of-control experiment efficiency of the lithium battery cell is effectively improved.

The invention discloses an integrated universal distiller. The integrated universal distiller comprises a heating device, a cooling device, a shell and a support, wherein the heating device is provided with a plurality of independent heating units; a ceramic electric heater is installed on a furnace frame of a heating box body; a furnace cover and a distilling bottle are arranged on the ceramic electric heater; the distilling bottle is installed in the furnace cover; the shell is provided with a plurality of heating control buttons corresponding to the plurality of heating units, heating state indicating lamps, functional regulating buttons as well as a liquid crystal display; the heating units are connected with the cooling device; the distilling bottle is connected with a condensing bottle connected with a water tank; the cooling device is connected with a control system; a volume bottle is arranged below the condensing bottle of the cooling device. The device integrates heating, distillation, condensation and receiving design; the ceramic electric heater is adopted by the heating device so as to achieve the functions of independent power regulating of a single furnace, automatic circulation of cooling water, automatic control of distillation terminal, automatic sucking-back prevention control and the like; the integrated universal distiller is practical, convenient, saves energy, protects the environment, and solves multiple defects of a traditional device.

The invention provides a forming device of rapid heating and cooling separation type continuous carbon fiber thermoplastic U-shaped part. The forming device comprises an upper driving mechanism, a lower driving mechanism, a vertical guide mechanism, an upper base, an upper mold, a lower mold and a lower base, wherein the upper base, the upper mold, the lower mold and the lower base are sequentially arranged from top to bottom; a lower heating plate is arranged at the top of the lower base, a cooling mechanism is embedded in each of the upper mold and the lower mold, the upper driving mechanismdrives the upper mold to ascend and descend along the vertical guide mechanism, the lower mold is installed on the vertical guide mechanism and can ascend and descend along the vertical guide mechanism, and the vertical guide mechanism is provided with a lowest limiting mechanism corresponding to the lower mold; and the lower driving mechanism drives the lower base to ascend and descend along thevertical guide mechanism. The invention further provides a forming process of the continuous carbon fiber thermoplastic U-shaped part. The forming device of the rapid heating and cooling separation type continuous carbon fiber thermoplastic U-shaped part and the process have the advantages of being scientific in design, high in production efficiency, low in energy consumption, good in product quality, economical and applicable.

The invention relates to an autoclaved aerated concrete masonry block production method, in particular to an autoclaved aerated concrete masonry block and a production method thereof. The autoclaved aerated concrete masonry block production method includes the steps of (1) pouring slurry into a die box; (2) fixing at least one core rod on the die box via a positioning device and enabling part of each core rod to be immersed in the slurry; (3) placing the die box processed in the step (2) in a drying room, standing still and foaming till the slurry is formed into a blank body; (4) separating the core rods from the die box; and (5) overturning, cutting and steaming the formed blank body obtained in the step (3). The invention aims at providing an autoclaved aerated concrete masonry block die and the autoclaved aerated concrete masonry block production method, and the autoclaved aerated concrete masonry block production method has the advantages that heating is even, the masonry block is lightened, and consumed raw materials are reduced.

The invention relates to a multifunction universal annular kiln. It is composed of connected kiln chamber, main flue, exhaust blower, flue entrance, gate and air exhaust conduit. Its characteristic is connecting the middle main flue with outer ring flue via the blower; extracting preheating area flue gas and feeding in outer ring underground flue; after opening the gate filling into air outlet at the bottom of the kiln chamber, the said flue gas is led to roasting zone, making black smoke secondary enter into the kiln chamber and secondary high temperature burning, releasing the heat, eliminating black fumes and reaching fully combustion effect. There are five straight-through type air ducts fan mounted at external ground of the kiln chamber, outer ring secondary air intake flue is set at external of the kiln.

The invention discloses an air-supply energy-saving electric heater, which comprises: a housing, the side of the housing is provided with an air outlet, the bottom of the housing is provided with an air inlet hole, and the inner chamber of the housing is divided into a lower air flow chamber and a lower air circulation chamber. The upper heat insulation cavity; the air flow cavity is sequentially provided with a cross-flow fan, a carbon fiber heating tube and a hot air guide plate inclined to the direction of the air outlet from bottom to top, and the cross-flow fan and the carbon fiber heating tube The controller is connected; the heat insulation cavity is filled with heat insulation material. The air-supply energy-saving electric heater of the present invention adopts carbon fiber heating tubes, and has the advantages of rapid temperature rise, small thermal hysteresis, uniform heat generation, long heat radiation transmission distance, and fast heat exchange speed.

The invention provides a self-regulating electric heat tracing tape for a high-temperature boiler, and relates to the technical field of electric heat tracing cable. The self-regulating electric heattracing tape for the high-temperature boiler comprises a core wire, a conductive plastic layer and an insulating layer; the outer side wall of the core wire is wrapped in the conductive plastic layer;the outer side wall of the conductive plastic layer is sleeved with an insulating layer; the outer side wall of the insulating layer is wrapped in a woven shielding layer; a waterproof layer is disposed between the insulating layer and the woven shielding layer; the outer side of the woven shielding layer is wrapped in a heat insulating layer; the outer side wall of the heat insulating layer is sleeved with a protective cover; and the outer side wall of the protective cover is wrapped in an anti-corrosion layer. The self-regulating electric heat tracing tape overcomes the deficiencies in theprior art, is reasonable in design and compact in structure, can protect a boiler pipeline when used in cooperation with the boiler pipeline, is safe to use and easy to install, has a good heat tracing effect, and avoids freezing the boiler pipeline.