33results about How to "Temperature close to" patented technology

The invention discloses a test system and method for realizing a high-temperature metal sealing ring performance simulation test. The test system is mainly composed of the following parts: an external hot air system (including an air compressor and a high-temperature wind tunnel); a high-temperature sealing tester body; a test piece installed in the body; a measurement box; and a temperature sensor, a pressure gauge, a flow meter and the like that are installed at key positions. On one hand, the design of the test working condition covers the actual operation working condition range; on the other hand, the corresponding relation between the test condition and the actual operation condition needs to be explained. The device is mainly developed and designed for the C-shaped metal sealing ring, and a subsequent high-temperature sealing principle verification test is carried out. According to existing experiment conditions and parameters, sealing airtightness and heat sealing performance tests under actual working conditions are carried out, so that the sealing element performance of an aircraft in a real operation environment is guaranteed.

The invention relates to a footbath tub and discloses a footbath tub with a sole massage function and an intelligent control method of the footbath tub. The footbath tub comprises a tub body (2) and footbath devices, the bottom portion of the tub body (2) is filled with footbath liquid, and the footbath devices are fixedly arranged below two soles and eject water to impact sole acupoints. By water ejection for impacting the sole acupoints, automatic sole massaging and rubbing of feet in the footbath tub is realized, and footbath healthcare efficacies are greatly improved; by a temperature control device and a temperature control method, the problem of poor footbath effects caused by local overheating or overcooling in a footbath process is avoided, footbath balance is achieved, a user can experience footbath effects and keep fit in the footbath process, and energy saving and environment friendliness are realized; the footbath tub further has functions of foot drying and sterilization.

The invention provides a high-pollution building space exhaust disinfection and purification system and method. The system comprises a pollution region negative pressure metal ventilation pipe, and any position of the pollution region negative pressure metal ventilation pipe is communicated to the inlet end of a high-resistance ventilation pipeline with a heat insulation and insulation layer. Theoutlet end of the high-resistance ventilation pipeline with the heat insulation and insulation layer is connected to the inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and the outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of an efficient frequency conversion draught fan. A plurality of virus killing devices are sequentially arranged at the rear end of the efficient variable-frequency draught fan. By means of the system and method, air possibly containing viruses in a high-pollution building space is subjected to high-temperature disinfection and sterilization through an electric heating pipeline, then the air subjected to high-temperature disinfection and sterilization is guided to an outdoor multi-virus disinfection and sterilization device through the negative pressure pipeline to conduct diversified thorough disinfection and sterilization on the introduced air,and the viruses in the air in the high-pollution building space can be thoroughly removed.

The invention discloses a calculation method of a temperature of a rotor winding of a large-size water-turbine generator set. The calculation method comprises the following steps: (1) respectively measuring temperatures of a halting state and a no-load state of the rotor winding of a generator and the rotor winding; and calculating to obtain the temperature of the rotor winding and the linear coefficient of a resistor; (2) sampling to obtain real-time sampling values of exciting voltage and exciting current to obtain a resistance value of the rotor winding; and (3) multiplying a real-time resistance value of the rotor winding by the temperatures of the rotor winding and the linear coefficient of the resistor, and subtracting a zero resistance temperature to obtain the temperature of the rotor winding. According to the calculation method disclosed by the invention, the measurement of rotor voltage and rotor current has a filtering function and a fault-tolerant mechanism; and a linear coefficient calculation method of a rotor resistance and a rotor temperature is optimized and the calculation of the resistance value of the rotor winding is closer to an actual value; meanwhile, influence of the slip ring pressure drop and the bus pressure drop on calculation of rotor temperature are considered to enable the calculation of the resistance value of the rotor winding closer to an actual temperature, so that the accuracy of measuring the temperature of a rotor is improved.

The embodiment of the invention provides a battery module and a temperature equalization structure. The battery module comprises a thermal management device, a plurality of single batteries and a temperature equalization structure, wherein the temperature equalization structure comprises at least one temperature equalization piece which is in contact with the thermal management device and at least one single battery; the temperature equalization piece is used for conducting hot energy and cold energy of the thermal management device to the single batteries. The battery module and the temperature equalization structure can be used for cooling or heating the single batteries which are in contact with the temperature equalization structure, so that the temperatures of the single batteries are approximate to the temperatures of the internal single batteries.

The invention relates to a steaming machine, and discloses the steaming machine and an intelligent temperature control method thereof.The steaming machine comprises a basin-shaped shell and steaming devices.The steaming devices include the first steaming device fixedly arranged at the bottom of the basin-shaped shell, the second steaming device fixedly arranged at the bottoms of the double feet and the third steaming device fixedly arranged at the upper portion of the basin-shaped shell.According to the steaming machine, the three steaming devices are arranged; the whole-body basis steaming function is provided for a user through the first steaming device arranged at the bottom of the shell; due to the second steaming device below the feet and the third steaming device at the upper portion of the shell, the poor steaming effect caused by local overheating or local overcooling in the steaming process is avoided, balanced whole-body steaming of the body can be achieved, the good steaming effect is achieved, energy is saved, and environment protection is achieved; due to intelligent control over the chemical steam temperature, the user can experience the body building effect and the comfortable steaming effect in the steaming process.

The invention provides a structure maintenance method and system of a concrete floor. The method includes the following steps that firstly, a first temperature sensor located on a first measurement point for monitoring the internal temperature Tboard is arranged on a floorboard; a second temperature sensor, a third temperature sensor and a fourth temperature sensor located on a second measurement point, a third measurement point and a fourth measurement point respectively are arranged on different height layers of a floor beam and used for measuring the average temperature Tbeam of the floor beam; secondly, the temperature difference deltaT between the Tboard and the Tbeam is calculated, wherein deltaT=Tbeam-Tboard; thirdly, when the deltaT is larger than a preset value, a heat preserving layer is additionally arranged for the floor structure; fourthly, when the temperature difference deltaT reaches the largest value and starts to decrease, water is sprinkled onto the floor. The method and system have the advantages that due to the measurement of additionally arranging the heat preserving layer, the temperature difference between the floorboard and the floor beam is reduced, the surface of the concrete floor structure is kept moist by sprinkling water, and finally the floor is efficiently prevented from fracturing in real time.

The invention discloses an efficient energy-saving environment-friendly pre-burning burner which is simple in structure, higher in heat burning rate of fuel and more energy-saving and environment-friendly. The efficient energy-saving environment-friendly pre-burning burner comprises a pre-burner, an igniter, an air inlet pipe and at least one fuel jetting device, wherein the air inlet pipe and the at least one fuel jetting device are communicated with the pre-burner; and the pre-burner comprises a pre-burning chamber and an air spraying chamber which are communicated, the pre-burning chamber is communicated with all fuel jetting devices and the air inlet pipe, the right end of the air spraying chamber is opened, the air spraying chamber is in a step shape, and the left end of the air spraying chamber is a large end. The ignition end of the igniter is located in the pre-burner, each fuel jetting device comprises a fuel spraying nozzle and an oil supply pipe, each fuel spraying nozzle is located on the side wall of the pre-burner, the fuel spraying nozzles are arranged in the pre-burner, and the left end of each fuel spraying nozzle is communicated with the corresponding oil supply pipe. The efficient energy-saving environment-friendly pre-burning burner further comprises an air blower, a vent pipe and an air bin, the vent pipe is communicated between the air blower and the air bin, the vent pipe is communicated between the air bin and the pre-burner, and the air bin is arranged on the outer wall of the pre-burner.

The invention relates to a PTC electric heater, and relates to the technical field of heaters. The PTC electric heater comprises an upper cover, a control box, a dielectric box and a lower cover arranged successively from top to bottom. The upper cover and control box are encircled to form a control cavity, and a control assembly is arranged in the control cavity; the top and bottom of the dielectric box are provided with openings respectively, the middle of the dielectric box is provided with a separator plate, a dielectric cavity is formed between the separator plate and the control box, a heating cavity is formed between the lower cover and the separator plate, and a heating assembly is arranged in the heating cavity; projections arranged side by side are formed in the separator plate towards the dielectric cavity, flow channels are formed between the projections as well as between the sidewall of the dielectric box and the projections, and first ribs are formed on the projections and/or the sidewalls in the two sides of the flow channel. Via simple structural layout, the control assembly is separated from the heating assembly by the dielectric cavity, the first ribs are arranged to increase turbulent flow in the flow channels, a medium flowing in the dielectric cavity takes heat away continuously, and thus, the temperature of the control assembly approaches that of the medium in the dielectric cavity.

The invention discloses an anti-scaling sufficient mixing reaction kettle capable of continuously reacting. The feed method of the material is changed, the tangential feeding is adopted, feeding components are distributed in the two directions of a reactor, the wall of the reaction kettle and a heating tube are continuously flushed, the feeding temperature is the lowest, the feeding components arebe in direct contact with the heating surface, the heating effect is improved, the temperature of the material in the reaction kettle is much closer to the reaction temperature, the reaction efficiency is improved, various kinds of mixing blades are combined, so that the material does not move in a certain way in the reaction kettle and forms disordered motion, the centrifugal effect is reduced,the particle material or large-gravity material is prevented from being in contact with the heating surface for a long period of time, the scaling of the material is avoided; meanwhile, the mixing ismore sufficient, the reaction efficiency is improved, the scaling is reduced by more than 90% by using the equipment provided by the invention, the temperature is accurately controlled, the material is mixed evenly, and the reaction rate is increased by 5%.

The title of the present invention is a method and device for forming optical glass. The invention belongs to the technical field of optical glass molding. It mainly solves the problems of low optical glass molding efficiency, low yield rate, complicated molding process and large space occupation. Its main features are: it includes active rollers and passive rollers with the same diameter and fixed horizontally on the bearing support; there are installation grooves on the peripheral surfaces of the active and passive rollers, and rolling molds with different mold cavities can be installed in the grooves. ; Both the active and passive rollers are provided with an axial cavity, one end of the cavity is connected with a cold air pipe, and the other end is provided with a ventilation hole; a driving wheel B with the same diameter and the same number of teeth is installed on the fixed shaft of the active and passive rollers 1. Passive wheel B; heating and cooling guide covers for cold air pipes and gas pipes are fixed on both sides of the main and passive rollers. The invention solves the need for continuous molding of small pieces of optical glass, and can improve the molding quality through monitoring and heating and cooling devices. The rolling device is easy to disassemble and facilitates replacement and maintenance.

The invention provides a high-pollution exhaust aeration heating combustion disinfection and sterilization system and method. The system comprises a polluted region negative pressure metal ventilationpipe, wherein any position of the polluted region negative pressure metal ventilation pipe is communicated with an inlet end of a high-resistance belt heat insulation layer ventilation pipeline, an outlet end of the high-resistance belt heat insulation layer ventilation pipeline is connected to an inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and an outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of a high-efficiency frequency conversion fan; and multi-virus disinfectionand sterilization devices are sequentially arranged at the rear end of the high-efficiency frequency conversion fan. Air possibly containing viruses in a high-pollution building space is subjected tohigh-temperature disinfection and sterilization through an electric heating pipeline, then the air after high-temperature disinfection and sterilization is guided to the outdoor multi-virus disinfection and sterilization devices through negative pressure pipelines for diversified thorough disinfection and sterilization of the introduced air, and the viruses in the air in the high-pollution building space can be thoroughly removed.

The invention discloses a temperature control device and etching equipment. The device comprises a shell and a heating element arranged in the shell, wherein the shell is of an open structure, the shell is arranged on a top plate of the etching chamber, an opening of the shell faces the top plate, a temperature control cavity is formed between the top plate and the shell, and the heating element is used for heating gas in the temperature control cavity, so the temperature of the top plate of the etching chamber is close to the temperature of etching liquid in the etching chamber. According tothe embodiment of the invention, the gas in the cavity on the top plate of the etching chamber is heated through the heating element, so the top plate is heated, the temperature of the top plate is kept close to the temperature of the etching liquid in the etching chamber, and the volatile gas of the etching liquid is prevented from being condensed into liquid drops when meeting cold on the top plate of the etching chamber, thereby avoiding the etching process defect caused by falling of the liquid drops, guaranteeing the uniformity of an etching substrate, and increasing the yield of products.

The invention discloses an alloy wire uniformly distributed heat-generating cable, comprising two heating conductor cores and an outer sheath wrapped on the outer sides of the two heating conductor cores, each of the heating conductor cores comprises a wire core conductor wire and a wire core insulation sheath wrapped on the outer sides of the wire core conductor wire, uniformly distributed heat alloy wires are arranged in the outer sheath, and the uniformly distributed heat alloy wires are located on the outer sides of the wire core insulation sheath. The wire core conductor wire is a tin-plated copper stranded wire or a nickel-plated copper stranded wire; The wire core insulation sleeve is ethylene Vinyl acetate copolymer material; The outer sheath is made of perfluoroethylene-propylenecopolymer material. The invention provides an alloy wire uniformly distributes heat-generating cable. By arranging a heat-conducting alloy wire between a core insulation sleeve and an outer sheath ofthe heat-generating cable, heat at a high temperature is transferred to a position with low temperature along the length direction of the heat-generating cable through the heat-conducting alloy wire,so that the temperature at each position of the heat-generating cable can be as close as possible.

A method for manufacture an alloy wire heating cable of includes such step of 1, extruding the insulating sleeve of wire core on the outer side of wire core conductor wire to obtain a heating wire core; 2, combining the two heating cores into one, and extruding a layer of alloy wire inner membrane sleeve on the outside of the two heating wire cores; 3, extruding to produce uniform heat distribution alloy wire, and laying the uniform heat distribution alloy wire on the outer side of the inner film sleeve of the alloy wire; 4, extruding a layer of alloy wire out membrane jacket on the outer sideof the alloy wire inner membrane jacket with uniformly distributed heat alloy wire; 5, extruding a layer of out sheath on that outer side of the outer film sheath of the alloy wire. The invention provides an alloy wire heating cable processing method, which can make the temperature at each position of the heating cable as close as possible.