1541results about "Air heaters" patented technology

Electric heat for generating smoke from tobacco or the like in a hookah type smoking pipe. Electric heat is obtained from an electrically powered heating element which may be placed proximate the tobacco. The heating element may be contained within a housing which in turn may be placed above the smoking chamber of the hookah. The housing may have adjustably damped holes disposed to pass air over the heating element. Electrical circuitry serving the heating element may comprise a step down transformer and a voltage adjusting switch. The heating element may be integral with the hookah, may take the form of a separate component which is mountable over the smoking chamber of the hookah, or may comprise a free standing assembly which may be placed to stand adjacent to the hookah.

The invention discloses a water heater and a control method thereof, and relates to the technical field of water heaters. The condensing heat exchanger has a water collecting cavity; the atomization module is arranged in the water collecting cavity; the water path switching assembly is arranged among the water inlet main pipe, the main heat exchanger and the condensing heat exchanger, has a first working mode and a second working mode, and is used for sequentially communicating the water inlet main pipe, the condensing heat exchanger and the main heat exchanger to form a first flow path in the first working mode; in the second working mode, the water inlet header pipe communicates with the main heat exchanger to form a second flow path, and the water inlet end and / or the water outlet end of the condensation heat exchanger are / is disconnected from the second flow path; according to the condensation gas water heater, condensed water is discharged along with flue gas after being atomized, meanwhile, the water inlet path is switched through the water path switching assembly, and the problems that in the efficient flue gas waste heat recovery process of an existing condensation gas water heater, the condensed water generated is inconvenient to discharge, a pipeline is prone to being corroded, or frequent manual intervention is needed can be solved.

A mobile heater adapted to heat air from the environment and to supply the heated air into a cabin like a recreational vehicle or a tent, the heater comprises a housing, a supply air inlet arranged at a side of the housing, a supply air outlet arranged at another side of the housing, a supply air channel inside the housing extending the between the supply air inlet and the supply outlet, means for generating a supply air flow inside the supply air channel from the supply air inlet to the supply air outlet, and flexible supply air hose that can be removably coupled to the supply air outlet and by means of which the heated air can be led inside the cabin, the heater further comprises a burner chamber inside the housing, wherein the supply air channel passes through the burner chamber, a burner arranged inside the burner chamber, a heat exchanger arranged inside the burner chamber and being designed as a tube section that forms at least a section of the supply air channel, a control unit and a user interface , wherein the burner extends below and along a vertical projection of the heat exchanger, and the heat exchanger has a plurality of firstlamellas and second lamellas, wherein the first lamellas extend from the outer surface of the tube section inside the burner chamber and parallel to a vertical plane, and the second lamellas extend from the inner surface of the tube section inside the supply air channel and along the direction of the supply air flow.

Provided is a heat gun formed by wave-type heating bodies. The heat gun includes a housing assembly and a heating assembly mounted in the housing assembly, where an air supply assembly is fixedly mounted in the housing assembly. The heating wire is wound into a wave-type structure by dedicated equipment. Compared with a traditional slingshot-wire-type structure, the wave-type structure is capable of resisting deformation of the heating wire at a high temperature and in a process from a high temperature to a normal temperature such that defects caused by thermal expansion and contraction when the heating wire operates or stops can be avoided. After the wave-type structure of the heating wire is wound around a mica plate, a direction of the wave-type structure is exactly perpendicular to a direction of an air channel such that wind generated by a fan behind can blow out heat with maximum efficiency.

Provided is a heater element with which it is possible to widen the area in the direction in which a flow path, which can be effectively heated, extends. The heater element has a honeycomb structure and satisfies either condition (i) or (ii) below: (i) a first electrode is provided on one end face, and a second electrode has an electrode portion A provided on another end face of the honeycomb structure and an electrode portion B that is connected to the electrode portion A and provided on the surface of a partition over a predetermined length in the direction in which a flow path extends from the other end face; and (ii) a first electrode has an electrode portion A provided on one end face and an electrode portion B that is connected to the electrode portion A and provided on the surface of a partition over a predetermined length in the direction in which a flow path extends from the one end face, and a second electrode has an electrode portion A provided on another end face and an electrode portion B that is connected to the electrode portion A and provided on the surface of the partition over a predetermined length in the direction in which the flow path extends from the other end face.

The utility model provides a high-enthalpy pure air heating device which is used for solving the technical problem that according to an existing heating mode, the attributes of incoming flow air and real air are different. The heating device comprises a gas inlet unit, a heating unit and a gas collecting unit, the air inlet unit is connected with the heating unit; the heating unit comprises a shell, and a heat transfer chamber and a combustion chamber which are arranged in the shell; the heat transfer chamber is coaxially installed in the shell, the radial section of the heat transfer chamber is of a circular ring structure, and the combustion chamber is axially installed in the center of the circular ring structure. A plurality of radial channels and axial channels which are mutually independent are arranged in the heat transfer chamber; the two ends of each radial channel communicate with the combustion chamber and the residual gas outlet correspondingly, and the radial channels are used for conveying high-temperature gas. The two ends of each axial channel communicate with the air inlet and the air outlet correspondingly, and the axial channels are used for conveying incoming flow air. And the gas collection unit is used for collecting the high-enthalpy air and transmitting the high-enthalpy air to external test equipment. The device is high in heating speed, and pure high-enthalpy air can be obtained.

The invention relates to the technical field of electric heater preheating, in particular to an electric heater preheating system and method. Wherein the electric heater comprises a shell, an electric heating tube and a junction box; the preheating device comprises a hot air module, a control module, a pressure sensor, a temperature and humidity sensor and a switch valve. The hot air module comprises a draught fan, a heating piece and a connecting air pipe, and the connecting air pipe is connected with the first pipe opening so that hot air generated by the hot air module can be input into the shell through the first pipe opening. The second pipe orifice is used for discharging air, the pressure sensor and the temperature and humidity sensor are arranged at the second pipe orifice to detect a pressure value, a temperature value and a humidity value, and the switch valve is arranged at the second pipe orifice to adjust the opening and closing and / or the opening degree of the second pipe orifice. When the electric heater is in a shutdown state, the external preheating device is connected with the electric heater to form a preheating system, energy of a molten salt system does not need to be depended on, non-internal circulation air is utilized, and preheating and moisture removal of the electric heater are achieved.

The invention discloses an automatic combustion control method and system for a slag pulverizer hot blast stove. The method comprises the following steps: acquiring operation parameters of a hot-blast stove and a slag pulverizer; selecting one of a furnace temperature control mode and a flow control mode for execution according to the production stage; the total target gas flow is calculated in the selected mode, wherein the flow control mode is subjected to prospective adjustment according to a linkage rule base of mill operation parameters; the air-fuel ratio is corrected based on double feedback of coal gas components and flue gas residual oxygen; and finally, distributing the target flow to a plurality of burners and executing combustion. Through dual-mode switching and intelligent linkage with the mill, conversion from reaction type control to predictive type control is achieved, thermal lag is effectively overcome, combustion efficiency is ensured through dynamic air-fuel ratio correction, and the energy utilization rate, operation stability and automation level of the system are remarkably improved.

The present invention relates to a heat exchanger assembly and a water heater comprising same, wherein the heat exchanger assembly comprises a heat exchanger unit provided with an inlet for introducing a fluid and an outlet for discharging the fluid, and the heat exchanger unit may comprise: a first plate; a second plate disposed on one surface side of the first plate to define, together with the first plate, an internal space in which the fluid introduced through the inlet moves toward the outlet; a heat generation member coupled to at least one of the first plate and the second plate and provided to provide heat into the internal space; and a guide part disposed in the internal space and provided to guide the fluid introduced through the inlet toward one plate, to which the heat generation member is coupled, of the first plate and the second plate.

The embodiment of the invention provides an air inlet blockage detection method and device, electronic equipment and a storage medium, and the method comprises the steps: detecting the working current of a motor and the temperature of an air outlet during the operation period of the equipment; determining a temperature change parameter based on the air outlet temperature; and based on the motor working current and the temperature change parameter, outputting blockage state information. According to the embodiment of the invention, the blockage state of the air inlet can be timely and accurately detected, and the reliability and safety of equipment are improved.

Systems and methods for establishing a warmed potable water flow from an aircraft potable water supply with an ambient temperature absorbs and scavenges waste heat from an air chiller condenser exhaust of an air chiller circuit at a heat exchanger to pre-warm a potable water flow delivered to an aircraft galley appliance water heater, and to increase appliance water heating efficiency and to conserve electrical power for running aircraft galley appliance water heaters.

The invention discloses a full-premixing combustion device and a condensation type gas water heater, and the combustion device comprises a premixing cavity which is connected with a gas valve and a fan, and in the premixing cavity, gas input by the gas valve and air input by the fan are mixed to obtain mixed gas; the ignition needle is arranged near the combustor, the ignition needle is used for igniting the mixed gas, and the combustor is used for guiding high-temperature gas flow generated by combustion to radiate to the surrounding; the detection sensor is used for detecting the combustion state of the mixed gas at the combustor; and the controller is used for adjusting the flow of the fuel gas and the air in the premixing cavity based on a detection result of the detection sensor, so that the combustion state of the mixed fuel gas meets a preset condition. According to the combustion device, the air-fuel ratio of the mixed gas can be accurately controlled according to the actual combustion requirement, and therefore the smoke exhaust heat loss is reduced. Meanwhile, the closed-loop control can inhibit the formation of a local high-temperature area, effectively reduce the NOx emission and meet the ultralow emission standard.

The utility model relates to the technical field of pressure transmitters, and provides a pressure transmitter capable of preventing blockage of detection substances, which comprises a pressure transmitter main body, a pressure sensor outer tube is arranged at the bottom of the pressure transmitter main body, and a pressure leading hole is formed in the center of the bottom of the pressure sensor outer tube. A guide block is welded to the bottom of the inner wall of the pressure sensor outer pipe. According to the pressure transmitter capable of preventing blockage of the detection substances, the pneumatic push rod pushes the motor to move downwards, the brush head can scrape the second filter screen under the driving of the motor, the spring can be contracted along with continuous pushing of the pneumatic push rod, bristles of the brush head penetrate through the second filter screen to be in contact with the first filter screen, and falling impurities can be cleaned under the guide of the guide block; and the impurities in the detection medium are discharged from the pressure guide hole again, and the impurities on the first filter screen and the second filter screen can be sucked by using the suction component, so that the impurities in the detection medium can be cleaned after entering the pressure transmitter, blockage is prevented, and normal use of equipment is guaranteed.

The invention discloses a fragrance-emitting carrier, a fragrance-emitting body and a preparation method of the fragrance-emitting carrier, and the preparation method of the fragrance-emitting carrier comprises the following steps: mixing carbon-based powder and an adhesive, and carrying out compression molding to form a carbon block or a carbon rod; placing the carbon block or the carbon rod in high-temperature air at 300-400 DEG C to form an oxygen-containing functional group on the surface of the carbon block or the carbon rod; continuously and gradually heating the carbon block or the carbon rod to 1500 + / -50 DEG C, introducing inert gas to carry out air flow impact induction on the carbon block or the carbon rod, so that carbon atoms are rearranged to form a carbon-carbon double bond structure, and stripping the carbon block or the carbon rod by utilizing shearing force during air flow impact to generate nanoscale pores; gradually cooling the carbon block or the carbon rod to room temperature; soaking the carbon block or the carbon rod in an acid solution to remove metal residues; and placing the carbon block or the carbon rod in a negative pressure environment to repair lattice defects. The fragrance-emitting carrier has excellent fragrance storage performance and electrical conductivity, can be directly used as a resistor for heating, and does not need to be heated by an additional heating element.

The invention provides a three-dimensional rotary table with an internal heat source and a high-precision temperature calibration function, which comprises a working table top, a pitching device, a rotating device, a lifting device and a base, and is characterized in that the pitching device comprises a driving shaft fixedly connected with the bottom of the working table top and a pitching driving assembly for driving the driving shaft to swing; the rotating device comprises a rotating plate fixedly connected with the pitching driving assembly and a rotation driving assembly driving the rotating plate to rotate, and the lifting device comprises a lifting table fixedly connected with the rotation driving assembly and a lifting driving assembly fixedly arranged on the base. The three-dimensional rotary table further comprises a hot air gun and a high-precision surface source black body, wherein the hot air gun is fixedly arranged below the working table top, and an air outlet of the hot air gun is aligned with the working table top. Heating and temperature calibration of a measured object are achieved through the integrated internal heat source and the high-precision surface source black body, the space utilization rate and the load capacity are improved through the modular layered design, meanwhile, the disassembly and assembly maintenance space is sufficient, and the maintenance cost is reduced.

The invention relates to a high-voltage heating element (1) for an electric heating device for heating an air flow, in particular for a motor vehicle, preferably for a battery-electric motor vehicle, - with a metallic flat tube (2) defining a longitudinal direction (X), a transverse direction (Y) and a vertical direction (Z) which are perpendicular to each other, - with a heating register (3) which has several PTC heating elements and two electrodes for electrically contacting the PTC heating elements, - wherein the heating register (3) is arranged in the flat tube (2) so that the flat tube (2) completely encloses the heating register (3) in a circumferential direction (U) surrounding the longitudinal direction (X), - wherein an electrical insulation (9) extending completely around the circumference (U) is provided between the flat tube (2) and the heating register (3). The manufacture of the high-voltage heating element (1) can be simplified in that the insulation (9) is formed by a coating (10) of electrically insulating material (11) which adheres to an inner side (12) of the flat tube (2) and / or to an outer side (13) of the heating register (3).

The invention relates to the technical field of memory bank testing, in particular to a memory bank aging testing device and method.The memory bank aging testing device comprises a testing box, a testing cavity is formed in the testing box, a testing plate is arranged in the testing cavity, and a memory bank is inserted into the testing plate. A double-shaft motor is matched with an electromagnetic clutch to respectively drive a soaking mechanism and a heat recovery mechanism, a reciprocating screw rod drives an extension box to move up and down in a reciprocating manner, a toothed plate and a driving gear are in meshing transmission, so that a rotating pipe rotates while moving, and a spray pipe forms composite sweeping airflow; dehumidification and regeneration are synchronized through cooperation with continuous rotation of the rotary box, closed-loop air treatment is formed, dynamic and uniform distribution of hot air in the test cavity is achieved, temperature stratification is effectively eliminated, meanwhile, energy consumption is remarkably reduced through waste heat recovery and medium regeneration, and the test efficiency is improved. And high uniformity, high cleanliness and low-energy-consumption operation of a high-temperature aging test environment are guaranteed.

The invention relates to the technical field of medical instruments, and discloses a disinfection device for a reproductive medicine examination room, which comprises a flowing gas heating mechanism and a rotary reciprocating shaking mechanism, a lower movable disc which is positioned in the vertical disinfection barrel and can rotate, an upper movable disc which is positioned right above the lower movable disc and can generate a longitudinal reciprocating motion effect, and a storage movable plate which longitudinally moves along with the upper movable disc and can support an instrument are arranged in the vertical disinfection barrel. According to the disinfection device for the reproductive medicine examination room, an instrument is effectively disinfected through disinfection gas, the disinfection gas is gas and has the rapid movement and permeation functions, in addition, the instrument can shake in the disinfection process through the device, the instrument can generate a movement gap through shaking, and therefore the instrument can be disinfected conveniently. And the disinfection gas can generate a flowing disinfection effect along the whole surface of the instrument, so that the disinfection range of the instrument is expanded, and the infection risk of the instrument in the subsequent use process is reduced.

The invention belongs to the technical field of furnace heat exchange, and discloses a hot water module furnace heat exchanger capable of recovering flue gas heat, which comprises a heat exchange box and further comprises a flue gas recovery heat exchange assembly arranged on the heat exchange box. Flowing water is introduced into the heat exchange box and the second guide pipe through the water inlet assembly, flue gas flows along the flue gas flow channel formed between the first guide pipe and the second guide pipe, and the section of the flue gas flow channel formed between the first guide pipe and the second guide pipe is in a sawtooth shape in the flowing process; due to the fact that the temperature of the smoke generated by natural gas combustion ranges from 150 DEG C to 300 DEG C, heat of the smoke is conducted to water in the heat exchange box and water in the second guide pipe through the first guide pipe and the second guide pipe, the water is heated by recycling the heat of the smoke, effective utilization of the smoke is improved, and the utilization rate of the smoke is increased. And the energy-saving potential of gradient utilization of energy is fully exerted.

The invention discloses a power self-adaptive adjustment method and system of an air heater, relates to the technical field of self-adaptive adjustment, and aims to solve the problem that the adaptability of a heating load controlled by a fixed PWM duty ratio and a heating channel to multiple temperature zones is insufficient, especially under the conditions of load change and non-uniform temperature, the temperature of the heating load is not uniform. And accurate temperature control adjustment cannot be realized. By calculating and adjusting the temperature deviation and PWM duty ratio deviation of the three temperature zones and the heating channel, the PWM duty ratio of each temperature zone can be adjusted in real time, accurate temperature control, thermal coupling characteristics and a safe amplitude limiting mechanism are achieved, it is ensured that the system can automatically adjust under the condition that the temperature is too high or the power is too large, and the system reliability is improved. A'slope-amplitude limiting-filtering 'three-in-one regulator is adopted, the PWM duty ratio is adjusted in a self-adaptive mode according to the dynamic change of a temperature zone, a rule is set, a double-temperature-zone energy-saving mode is automatically entered, unnecessary energy waste is reduced, the overall energy efficiency is improved, and the energy consumption of the system is reduced.

Means for maintaining temperatures of lithium-containing electrochemical cells, inside electronic devices, and within containers within the desired temperature range without requiring the use of cooling liquids. Temperature is maintained through the use of coatings and at least one fan. The coating features at least 30% particles consisting of encapsulated solid substances that change phase at temperatures between 25 and 45 degrees Celsius. By means of the present invention, thermal management of lithium-containing electrochemical cells, within enclosures, inside structures and inside containers can be provided with recyclable coatings.

The invention relates to the technical field of hot air, in particular to a high-frequency hot air enhancing method based on airflow cavitation, which comprises the following steps: acquiring a first gas volume flow rate at an air inlet of a hot air device and a second gas volume flow rate at an air outlet, whether the fluctuation of the hot air temperature at the air outlet is qualified or not is determined according to the stability characterization value based on the volume flow difference; a low-pressure area and a high-pressure area in the hot air device are determined according to the temperature distribution stereogram in the hot air device, and whether pressure gradient distribution is qualified or not is determined based on the low-pressure overlap ratio and the high-pressure overlap ratio; the rotating speed of the power mechanism is adjusted through a rotating speed adjusting coefficient based on the transition area distance, or the valve opening degree of the air inlet is adjusted based on the distribution uniformity characterization value of the eddy current density; and determining whether the cleaning period of the hot air device is qualified or not based on the reduction rate of the volume flow difference so as to adjust the cleaning period or adjust the self-cleaning power of the hot air device. The hot air temperature stability of the hot air device is improved.

The utility model relates to the technical field of hot air gun air nozzles, and discloses a u-shaped air return air nozzle of a hot air gun. The hot air gun air return nozzle with the u-shaped air return function comprises an end plate, an inner arc plate is fixedly installed above the end plate, an air outlet is formed in the surface of the inner arc plate, an outer arc plate is fixedly installed above the end plate, a sealing plate is fixedly installed on the left side of the outer arc plate, a flow guide plate is fixedly installed above the end plate, and the flow guide plate is fixedly installed above the end plate. The flow guide plates are installed between the horizontal structures on the front sides of the end plates at equal intervals in the left-right direction, the included angle between each flow guide plate and the sealing plate is 45 degrees, and hot air blown out of the hot air gun can move rightwards under guiding of the flow guide plates in the process of moving backwards through the tubular structures of the connecting plates and enters the U-shaped structure at the right end of the air duct. The air pressure between the inner arc plate and the outer arc plate is increased, hot air can be exhausted through the air outlet and blown to the heating face, and the front side, the rear side and the side face of the heating face can be heated in the mode.

The utility model belongs to the technical field of electric water heaters, and discloses a warm air device and an electric water heater, the warm air device and an electric heater heat air flowing through an air outlet to form hot air, as the electric heater is arranged at the air outlet, the hot air can be quickly discharged through the air outlet, and a motor is arranged outside an air outlet channel, so that the electric heater can quickly discharge the hot air. Heat transferred to the space where the motor is located can be reduced as much as possible, so that the motor works in a relatively low-temperature environment, the high-temperature-resistant requirement of the motor is reduced, the cost is reduced, and the service life of the motor is prolonged.

A heating module comprising a housing and a sensor. The housing comprises a first portion in which a printed circuit board assembly is located, a second portion in which a heating element is located, and a channel extending from the first portion toward the second portion. The sensor is connected to the printed circuit board assembly via a wire extending through the channel and is exposed at an end of the channel.

The present application relates to a household outdoor dual-purpose pet hair dryer, comprising an upper shell and a lower shell, the upper shell and the lower shell are mutually buckled to form an internal mounting chamber, a heating and air supply assembly is arranged in the mounting chamber, the heating and air supply assembly is connected with an intelligent temperature control assembly mounted on the side surface of the upper shell and the lower shell, a cage fixing assembly is mounted on the surface of the lower shell to fix the hair dryer on the pet cage, the present application realizes effective isolation of the heating component and the pet through the structure of cage outside fixation and cage inside temperature measurement, improves the use safety, cooperates with the rotatable temperature probe and the intelligent temperature control mode to accurately and stably warm the pet activity area, simultaneously adopts the dustproof filtering and antibacterial integrated structure to improve the air intake and the internal environment, reduces the maintenance difficulty, prolongs the service life of the whole machine, and is suitable for various use scenes.

The utility model provides an efficient condensation type fuel gas volumetric water heater, and relates to the technical field of water heaters, the efficient condensation type fuel gas volumetric water heater comprises a shell, a condensation cover is arranged in the shell, an inner container barrel is arranged in an inner cavity of the condensation cover, and an upper cover seal head and a lower cover seal head are fixedly arranged at the two open ends of the inner container barrel respectively; an annular smoke channel is formed between the outer side wall of the inner container barrel and the inner side wall of the condensation cover, a first communicating smoke cavity is formed between the outer wall of the upper cover end socket and the inner wall of the upper portion of the condensation cover, and a second communicating smoke cavity is formed between the outer wall of the lower cover end socket and the inner wall of the lower portion of the condensation cover. Smoke sequentially flows through the main heat exchange smoke pipe, the third communicating smoke cavity, the secondary heat exchange smoke pipe, the first communicating smoke cavity, the annular smoke channel, the second communicating smoke cavity and the condensation smoke exhaust pipe connector, high-temperature smoke flows through the smoke pipe in the inner container and completely wraps the inner container, and therefore the heat exchange efficiency is improved.

The biomass particle hot blast stove comprises a stove body, a feeding assembly, a combustion assembly, a heat exchange assembly and a smoke exhaust assembly. The combustion assembly is arranged in the furnace body, a combustion chamber of the combustion assembly is sequentially divided into a drying pyrolysis area, a main combustion area and a burnout area in the conveying direction of biomass particles, and ordered partitioned combustion of preheating, sufficient combustion and complete burnout of fuel is achieved; the heat exchange assembly comprises a first heat exchange set arranged above the combustion assembly and a second heat exchange set arranged in the circumferential direction of the combustion assembly, and a three-dimensional and multi-layer waste heat recovery structure is formed. The combustion efficiency and the burn-off rate of the biomass particles are obviously improved; through the first heat exchange set and the second heat exchange set, efficient and sufficient recovery of combustion waste heat is achieved, and the overall heat efficiency and the energy utilization rate of the hot blast stove are greatly improved.

The invention discloses a novel ceiling fan structure and belongs to the technical field of ceiling fans, the novel ceiling fan structure comprises a remote controller and a hanging rod connected with a ceiling fan body in a matched mode, the ceiling fan body comprises blades, a motor, a motor shell and a main control board, the blades are provided with blade buckling parts and blade disassembling and assembling assemblies, the motor is arranged on the motor shell, and a connecting base disassembling and assembling assembly is arranged on the motor. The blades are matched with two different positions of the connecting seat dismounting and mounting assembly in a dismounting and mounting manner through the blade buckling parts and the blade dismounting and mounting assembly; a decorative lamp assembly is arranged on the hanging rod, decorative lamp sets emitting light downwards and upwards are arranged on the decorative lamp assembly, a warm air illuminating lamp assembly is arranged on the motor shell, and a heater, warm air blades blowing air towards the direction of the heater and illuminating lamp sets emitting light downwards and outwards are arranged on the warm air illuminating lamp assembly. The main control board is in electric control connection with the motor, the decorative lamp set, the warm air motor, the heater and the illuminating lamp set, and the remote controller is in remote electric control connection with the main control board. The ceiling fan is convenient to disassemble, assemble and control and good in lighting and warm air effect.