29results about How to "Increase heating speed" patented technology

The invention discloses a multi-degree-of-freedom ultrasonic-assisted laser cladding remanufacturing device and a working method thereof, and belongs to the field of laser cladding. Comprising a workbench, a to-be-machined workpiece arranged at the top end of the workbench through a positioning mechanism, a laser cladding mechanism erected above the to-be-machined workpiece and focusing type ultrasonic vibration mechanisms symmetrically arranged on the two sides of the laser cladding mechanism through a multi-degree-of-freedom variable-angle clamping mechanism. And focused ultrasound emitted by the focused ultrasonic vibration mechanism is aligned with a cladding area of the laser cladding mechanism. By adopting the multi-degree-of-freedom ultrasonic-assisted laser cladding remanufacturing device and the working method thereof, high-strength focusing of ultrasonic waves is realized through a multi-stage focusing method, and ultrasonic vibration can be uniformly applied during laser irradiation, so that the defects of cracks, air holes and the like are effectively reduced, and the processing quality and efficiency of laser cladding remanufacturing are improved.

The utility model discloses a tail gas treatment system, which relates to the technical field of tail gas treatment, and comprises a tail gas treatment box, a tail gas delivery pipe connected to the end part of the tail gas treatment box, a heater, an air pump and two air delivery pipes connected with the air pump, and the two air delivery pipes are spirally wound on the outer wall of the tail gas delivery pipe. The two air conveying pipes penetrate through the interior of the annular heating end of the heater, and a fixing frame is fixedly arranged in the tail gas treatment box. Hot air conveyed by the air conveying pipe is blown into the charging box from the discharging pipe to heat activated carbon, so that'benzene, benzene and benzene 'waste gas is desorbed out, the activated carbon is regenerated, external cold air in the hot air in the air conveying pipe is firstly guided into the air conveying pipe through the air pump, and due to the fact that the temperature of tail gas is high, the tail gas can be recycled. Cold air in the air conveying pipe spirally attached to the tail gas conveying pipe can be preheated and then heated through the heater, the cold air heating speed is increased, and energy consumption is reduced.

The utility model relates to the technical field of heaters, in particular to a heater with a waste heat recovery structure for a glue stabilizer, which comprises a mounting box, a conveying pipe is mounted on the inner surface of the mounting box, a heater body is sleeved on the surface of the conveying pipe, and a first sealing bin and a second sealing bin are mounted on the surface of the conveying pipe. And a mounting hole and a connecting hole are formed in the surface of the first sealing bin. The first sealing bin is additionally arranged at the position of the heater body, so that excessive dispersion of heat of the heater body is avoided, energy waste is avoided, the heating speed of a glue stabilizer in the conveying pipe is higher and better, redundant heat can enter the second sealing bin along the connecting pipe, and the heating efficiency is improved. And through blowing of the fan, heat quickly enters the second sealing bin to heat the surface of the conveying pipe, so that the cooling time of the glue stabilizer is prolonged, and then waste heat generated by the heater body is recycled.

The invention discloses a ceramic substrate wax sticking device, and relates to the technical field of wax sticking device.The ceramic substrate wax sticking device comprises a working support, a working table is fixedly connected to the top of the working support, a pair of rail grooves are formed in the surface of the working table, a feeding plate is arranged at the top of the working table, and a sliding rod is fixedly connected to the bottom of the feeding plate; a fixing assembly is arranged on the upper surface of the workbench and comprises a rack, the rack is fixedly connected to one side of the feeding plate, the upper surface of the workbench is rotationally connected with a first bevel gear, the side wall of the first bevel gear is in meshed connection with a second bevel gear, and the top of the first bevel gear is rotationally connected with a rotating rod; the technical problems that during heating, the temperature is very high, when a ceramic substrate is broken due to high temperature, a worker cannot find and clean fragments in time, and if the fragments cannot be cleaned in time, the fragments may block the device, so that the device is damaged, and the project progress is affected are solved.

The utility model discloses a water-free heating radiator with circulating wind power, which comprises a plurality of parallel micro-channel heating pipes, the two ends of each micro-channel heating pipe are respectively provided with a collecting pipe, heat source gas can enter the heating radiator from one collecting pipe, and the heat source gas can enter the heating radiator from the other collecting pipe. After passing through a plurality of micro-channel heating pipes, the heat flows out of the other collecting pipe, and the heat is dissipated into the heating radiator in the process; wherein a plurality of heat dissipation fins are arranged outside the micro-channel heating pipe, and a plurality of air flow channels which are longitudinally through and relatively closed in the transverse direction are formed by the heat dissipation fins; and the fan is arranged, the flow speed of air in the air flow channel is increased through the fan, the heat exchange efficiency is improved, the rotating speed of the fan is adjustable, and therefore the heat exchange rate and the indoor temperature can be adjusted.

The invention discloses a device and method for preparing boron trichloride gas. An electric heating fixing barrel is connected to the inner side of a positioning operation frame, a transmission motor is installed at one end of the electric heating fixing barrel through a motor base, a double-shaft motor is installed at the other end of the electric heating fixing barrel through a motor base, and a storage overturning barrel is clamped to one end of one output shaft of the double-shaft motor; the raw materials are stirred through two sets of overturning, air is evenly fed, the heating area and the air contact area are increased, the raw materials are preheated in cooperation with heat circulation, the temperature of finished products is reduced, and the heat efficiency is improved. According to the technical scheme, the condition that the reaction is influenced by equipment cooling caused by insufficient contact area and too low raw material temperature during production can be avoided, and the condensation speed of boron trichloride is accelerated through finished product heat dissipation cooling and condensation cooling, so that rapid exhaust is realized, and the speed of a finished product is ensured.

The invention discloses an intelligent control method and system for the oil temperature of a drive axle lubricating system. The method comprises the steps that the target range T0 of the oil temperature of drive axle lubricating oil is set to be larger than or equal to 20 + / -2 DEG C and smaller than or equal to 100 + / -2 DEG C; detecting the temperature of each test point of the thermal management system, wherein the test points comprise a lubricating oil temperature T1 and a cooling liquid temperature T2; detecting the running state of the vehicle, and when an engine is ignited and the rotating speed of the vehicle is greater than 0m / s, activating a drive axle oil temperature intelligent control system; s4, under the condition that the drive axle oil temperature intelligent control system is activated, the following oil temperature control steps are executed: a) when T1 is smaller than 20 + / -2 DEG C, low-temperature control is executed; b) when T1 is greater than or equal to 100 + / -2 DEG C, executing high-temperature control; c) when the vehicle speed is less than or equal to 30km / h, executing low-speed working condition control; and d) when T2 is larger than T1, cooling liquid high-temperature control is executed. The problems that the drive axle assembly fails in advance, the torque transmission efficiency is reduced, and the oil temperature is low when a vehicle continues to be at a low speed are solved.

The application discloses an electric heat pump mixed water heater and an evaporator, and relates to the technical field of water heaters. The electric heat pump mixed water heater comprises a shell, an electric heating system, a heat pump system and a fan. The shell is provided with a first air inlet, a second air inlet and an air duct. The first air inlet is arranged to face a first direction, and the second air inlet is arranged to face a second direction. One of the first air inlet and the second air inlet is an air inlet, and the other is an air outlet. A water tank liner is arranged in the shell. The electric heating system is arranged in the shell and comprises an electric heating element. The electric heating element is arranged in the water tank liner. The heat pump system is arranged in the shell and comprises a condenser and an evaporator. The condenser is arranged in heat exchange with the water tank liner. The evaporator is arranged in the air duct and close to the first air inlet. The evaporator is arc-shaped and is arranged to bend towards the second air inlet for cooling the air entering the shell from the air inlet. The fan is arranged in the air duct. The application can reduce the space occupied by the evaporator and realize more efficient heat exchange.

This utility model belongs to the field of heated tobacco product technology, and specifically relates to a heating cup with surround heating, including a heating chamber, a receiving chamber, a heat transfer part, and a heating part. The upper part of the heating chamber is used to receive the tobacco cartridge, which is the receiving chamber. The lower part of the heating chamber is provided with the heat transfer part and the heating part. The inner wall of the heating chamber has several longitudinally extending grooves. The heating part is located below the heat transfer part and is in contact with the heating part. The heat transfer part is a sheet-like metal that is fixedly in contact with the inner wall of the heating chamber on all sides. The side of the heating chamber and the heat transfer part can heat the tobacco cartridge simultaneously. The inner wall of the heating chamber with grooves can preheat the air, and the heat transfer part reheats the air, forming surround heating, which improves heating efficiency and smoke output speed from multiple directions. Compared with the heating devices in the prior art that only have a heating mesh at the bottom, the heating cup of this utility model greatly improves the heating uniformity.

The invention discloses a production method of a nickel-chromium-iron-based alloy plate. The nickel-chromium-iron-based alloy plate comprises the following components: 0.05-0.08% of C; 0.25 to 0.45 percent of Si; mn: 0.55 to 0.80%; less than or equal to 0.025% of P; s < = 0.005%; cr: 24.5 to 26.0%; ni: 36.0 to 37.5%; 0.30% or less of Cu; 0.55 to 0.65 percent of Nb; 0.10-1.0% of Mo, and less than or equal to 2.5% of residual element W; less than or equal to 0.010% of B; 0.10% or less of Al; 0.10% or less of Ti; 0.15% to 0.60% of [N]; and the balance of Fe and inevitable impurities. The rolling technology comprises the steps of electric arc furnace smelting, AOD refining, LF refining, die casting, surface cleaning, heating, first-heating-number rolling, dead head cutting, surface cleaning, second-heating-number rolling, third-heating-number rolling, forming rolling, water cooling, surface cleaning, solid solution heat treatment and acid pickling. According to the nickel-chromium-iron-based alloy plate and the preparation method thereof, on the basis of optimizing components, reasonable smelting, rolling and heat treatment processes and a short-process nickel-chromium-iron-based alloy plate production process are adopted, so that the production cost is reduced, and better product performance can be obtained.

The utility model discloses an integrated circuit board high-temperature testing device, which relates to the technical field of circuit board high-temperature detection, and comprises a detection cabinet main body, the detection cabinet main body is divided into a front cabinet and a rear cabinet by a partition plate, a circulating fan I and a circulating fan II are respectively fixed on the partition plate, and two groups of air distribution plates are fixed in the rear cabinet. The first circulating fan is located in a cavity defined by one group of air distribution plates and the rear cabinet, the second circulating fan is located in a cavity defined by the other group of air distribution plates and the rear cabinet, a heating pipe is further arranged in the rear cabinet and located in a middle cavity defined by the two groups of air distribution plates and the rear cabinet, and heat conduction fins are arranged on the faces, corresponding to the heating pipe, of the air distribution plates. By arranging the partition plate, the circulating fan I, the circulating fan II and the air distribution plate, circulating air is heated in a reciprocating manner, the temperature of the air is ensured, hot air is driven to circulate, the hot air is uniformly distributed through the air distribution plate and is uniformly conducted through the heat conduction fins, and the heating uniformity and the heating speed of a circuit board are improved.

The utility model discloses polyurethane production equipment which is characterized in that a first spiral constant-temperature pipe and a second spiral constant-temperature pipe are arranged in a mixing drum, the first spiral constant-temperature pipe and the second spiral constant-temperature pipe are arranged at intervals along the vertical direction, the lower end parts of the first spiral constant-temperature pipe and the second spiral constant-temperature pipe are communicated, and an outer constant-temperature spiral pipe is wound on the outer wall of a tank body; the two ends of the outer constant-temperature spiral pipe, the upper end of the first spiral constant-temperature pipe and the upper end of the second spiral constant-temperature pipe are connected with the cold and hot water circulation machine. Polyurethane is heated or cooled from the inside of the reaction kettle through the first spiral constant-temperature pipe and the second spiral constant-temperature pipe, meanwhile, polyurethane is heated or cooled from the outside of the reaction kettle through the outer constant-temperature spiral pipe, heating and cooling are conducted inside and outside at the same time, the heating and cooling speed is increased, heating and cooling of polyurethane are more uniform, temperature difference does not exist, and the service life of polyurethane is prolonged. And the product quality of polyurethane is improved.

The utility model discloses a heating cup stand mechanism, a vehicle-mounted cup holder device and an automobile. The heating cup stand mechanism comprises a cup stand and a control panel, wherein the cup stand is used for being placed in a cup groove of a vehicle-mounted cup holder and provided with a heating unit, and the control panel is connected to the top of the cup stand and provided with a control switch and a circuit board. The cup stand is provided with a cup containing groove with an upward opening, and the heating unit is located on the periphery and / or the bottom of the cup containing groove. And the heating unit and the control switch are electrically connected with the circuit board respectively. The heating cup holder mechanism is additionally arranged on vehicle-mounted cup holders of different vehicle types in a matched mode, the heating unit is located on the periphery and / or the bottom of the cup containing groove, the heating area of a cup is large, the side portion and / or the bottom of the cup can be heated, the heating speed and efficiency are improved, and the use experience of a user is also improved.

The utility model relates to the technical field of hose processing devices, in particular to a hose thermoforming and cooling device, which comprises a main body frame, a temperature controller is mounted on the outer wall of the main body frame, a product mold is placed between a heating plate and a cooling plate, a user only needs to turn on a starting switch with two hands, and the starting switch enables the device to be powered on. Then one end of an air cylinder applies downward pushing force to a fixing plate, then the fixing plate moves downwards on the outer wall of a guide column, then the fixing plate applies downward pushing force to a heating plate through a limiting column, the heating plate is used for making contact with a product mold, heating is conducted to the limited temperature, a hose is heated and formed, and then an external cooling-water machine is started to work; cold water is connected into the cooling plate, the purpose of cooling products is achieved, according to existing hose materials and structural characteristics, original heating and cooling steps are optimized, the same equipment is used, the heating speed and stability are improved, cooling faces are evenly distributed, the forming state is more stable, and the yield is increased.

This application relates to a battery cell hot-pressing device, which includes multiple hot-pressing stations and a pressure actuator. Each hot-pressing station is equipped with a first electromagnetic heating component and a second electromagnetic heating component arranged opposite to each other, forming a battery cell hot-pressing space between the first and second electromagnetic heating components. The first and second electromagnetic heating components are used to generate a magnetic field to heat the battery cell. The pressure actuator is used to apply pressure to the heated battery cell. The solution provided by this application can improve energy utilization efficiency and heating speed, and significantly shorten the battery cell hot-pressing time.

This utility model relates to the technical field of boiler degassing, and in particular to a degassing assembly and its electrode boiler, comprising: a degassing vessel, supported on the ground, with a degassing chamber inside and an outlet connected to the top of the degassing vessel; a filtration mechanism, connected to the outlet of the degassing vessel, for filtering the gas; wherein the degassing vessel includes: a heating cylinder, disposed inside the degassing vessel, with multiple connecting rods arranged circumferentially on the outer wall of the heating cylinder, the heating cylinder being fixedly installed inside the degassing vessel via the connecting rods; a water pump, fixedly installed on the outer wall of the degassing vessel, the water pump input end for drawing in boiler water, and the water pump output end connected to a water supply pipe; and an annular spray pipe, disposed inside the degassing vessel, connected to the water supply pipe, with multiple spray nozzles arranged annularly on the inner wall of the annular spray pipe, each spray nozzle being located at the top of the heating cylinder.

The utility model belongs to the technical field of air compressor cleaning, and provides a worm air compressor degreasing device which comprises a base, and a cleaning cylinder and a motor are arranged on the left side and the right side of the top of the base. A connector is arranged at the right end of the cleaning cylinder, a transmission rod is arranged at the end, facing the cleaning cylinder, of the motor, and the transmission rod is inserted into the connector; a heating water injection head is arranged at the top of the cleaning cylinder, and a blow-down valve is arranged at the bottom of the cleaning cylinder; the scheme is used for cleaning worm oil dirt of the worm type air compressor, water flow can be rapidly heated through the effect of the heat conduction water pipe integration head, heat loss in the immersion cleaning cavity is reduced, frequent high-power heating use of the heating rod is reduced, and the service life of heating parts is prolonged; enough liquid is injected into the immersion cleaning cavity of the cleaning cylinder, the worm is immersed in the liquid, and meanwhile, the motor on the right side drives the worm to rotate at a constant speed, so that the surface of the worm repeatedly interacts with water flow, and the purpose of thorough immersion cleaning is achieved.

The invention discloses multi-stage separation and extraction equipment for illegal cooking oil and a use method thereof, and relates to the technical field of illegal cooking oil purification, the multi-stage separation and extraction equipment comprises a fixing frame mechanism, the fixing frame mechanism comprises a fixing frame, and a fixing plate is fixedly mounted in the fixing frame; the pretreatment mechanism comprises a filtering assembly, a self-cleaning assembly, a residue storage assembly and an extrusion assembly; particle residues in illegal cooking oil can be filtered and intercepted through the filtering assembly, the follow-up purification quality of the illegal cooking oil is improved, the filtering efficiency of the illegal cooking oil is improved through the extrusion assembly, the interior of the filtering assembly can be automatically cleaned through the self-cleaning assembly, and the particle residues in the illegal cooking oil are prevented from blocking the filtering assembly; shutdown for manual cleaning is not needed, and the purification efficiency is improved; a large number of microbubbles can be generated through the precipitation assembly and the air flotation assembly, and the microbubbles float upwards and are attached to oil drops to form a gas-oil complex and float upwards to the liquid level to form a floating oil layer, so that oil and water are rapidly separated.

The invention discloses a high-efficiency energy-saving thermal cycle heating furnace, which relates to the technical field of heating furnaces, and comprises a plurality of groups of upper box bodies, a plurality of groups of lower box bodies and a plurality of groups of conveying rollers rotationally arranged at the tops of the lower box bodies, and heating mechanisms are arranged on the upper box bodies; through the designed heating mechanism, hot air is generated through a hot air circulating fan and is blown out through a plurality of groups of air outlets in an air outlet pipeline to heat the surface of glass, so that the glass can be uniformly heated, and the blown hot air circulates in the upper box body and the lower box body, so that the heating speed of the glass is increased under the same power; and when dust and foreign matter are attached to the interior of the air outlet to cause blockage after long-time use, the interior of the air outlet is cleaned through the rotating brush which moves in the left-right direction and rotates, so that the air outlet is kept in a smooth state, and the stability of the subsequent glass heating effect is kept.

The utility model belongs to the field of purification reaction kettle, concretely is a kind of aromatic hydrocarbon purification reaction kettle, including base;The inside fixedly connected with reaction kettle of base is slidably connected with top cover at the top of reaction kettle, the side fixedly connected with electric push rod of base, the top of electric push rod is fixedly connected with top cover, the top fixedly connected with motor of top cover, the output fixedly connected with cross limiting block of motor, the inside fixedly connected with heat conduction plate of base, the inside fixedly connected with mounting ring of heat conduction plate, the inside rotatably connected with stirring rod of mounting ring, the top of stirring rod is equipped with cross limiting slot;By driving the up-and-down movement of top cover, top cover can be separated from reaction kettle, it is convenient to overhaul the inside of reaction kettle, meanwhile, stirring rod can be separated and removed from the inside of reaction kettle, and stirring rod can also be disassembled and replaced, it is convenient to clean and check the inside of reaction kettle.

The invention relates to the technical field of projection display, and discloses a dimming device which comprises a light modulator used for modulating light source light into image light; the heat dissipation assembly is located on one side of the light modulator and used for dissipating heat of the light modulator; and the semiconductor cooler is located between the light modulator and the heat dissipation assembly and used for adjusting the temperature of the light modulator. The invention further relates to projection equipment and a temperature regulation and control method. According to the dimming device, the projection equipment and the temperature regulation and control method disclosed by the invention, the heating power and the temperature rise response speed can be improved.

A heating component relates to the technical field of heating. The device comprises a heating pipe and a photothermal conversion structure, the heating pipe is sleeved with the photo-thermal conversion structure, a heating cavity is formed between the photo-thermal conversion structure and the heating pipe, and the photo-thermal conversion structure comprises a fixing base and a plurality of photo-thermal conversion pieces; the fixed seat is fixed at the end part of the heating pipe; the ends of the photo-thermal conversion pieces are fixedly connected with the fixing base, the multiple photo-thermal conversion pieces are distributed in the circumferential direction at intervals with the heating pipe as the center, a gap is formed between every two adjacent photo-thermal conversion pieces and used for communicating the heating cavity with the outside, and the inner side wall and the outer side wall of each photo-thermal conversion piece are both black. By means of the technical scheme, light energy emitted by the heating pipe is converted into heat, and the electro-thermal conversion efficiency is improved. Meanwhile, as the heat conductivity of metal is better than that of liquid and gas, the heating efficiency and speed of the liquid and the gas can be improved, the temperature rise in the heating cavity is accelerated through photo-thermal conversion, and the electric heating conversion efficiency of the heating pipe is improved.

The embodiment of the invention provides an electric water heater, which comprises at least one heating module, an output port of the heating module is connected to a flow collecting input port of a water outlet tank, and an input port of the heating module is connected to a flow dividing output port of a water inlet tank; the water outlet tank is provided with a water outlet; the heating module comprises an outer shell; inner covers are arranged at two ends of the outer shell; outer covers are arranged on the outer sides of the inner covers; a buffer space is arranged between the outer cover and the inner cover, openings are distributed in the inner cover in an equilateral triangle shape, and an electric heating tube is connected between the openings in a sealed mode. A nano heating film is arranged on the surface of the electric heating tube, and electrodes are arranged at two ends of the electric heating tube; the electrodes are electrically connected to a power source outside the outer shell. Through innovative design in multiple aspects, the problem that a traditional electric water heater is insufficient in heating efficiency is effectively solved, the heating speed and efficiency are improved, energy is saved, and safety is improved.

The utility model provides a novel liquid PTC heater which comprises a tubular PTC heating core, the tubular PTC heating core is installed on a shell with two open ends in a penetrating mode, a gland is arranged on the tail portion of the tubular PTC heating core, the gland is fixedly connected with the shell in a sealed mode, a baffle is arranged on the head portion of the tubular PTC heating core, an upper cover is arranged on the baffle, and the upper cover is fixedly connected with the shell in a sealed mode. An inlet and an outlet are oppositely formed in the outer side face of the shell, the shell is provided with liquid heating chambers which are the same as the PTC heating cores in number and are independent of each other, a liquid through opening is formed between the two liquid heating chambers, and the liquid through openings are formed in the ends, away from the inlet and the outlet, of the shell so that liquid can be fully heated. Compared with the prior art, the utility model has the beneficial effects that an independent PTC (Positive Temperature Coefficient) heating core is matched with a liquid cavity, and the liquid baffles are arranged on the upper and lower inner walls of the liquid heating cavity in a crossed manner, so that liquid is heated in an S-shaped circulating manner, and the heating speed and the outlet temperature of a product are improved.

The invention discloses a multipath temperature centralized inspection device for a shoe machine, which comprises a main power supply module, a switch control module, a heating, cooling and sensing module, a human-computer interface module, a PLC (Programmable Logic Controller) system module and an inspection and conversion module, a heating element is arranged at the bottom of a mold cavity, and a PT100 resistance sensor is arranged on the left side of the heating element; the fan is fixed to the right side of the shoe machine mold, the switch heating element and the fan are electrically connected with the switch control device, the touch screen is arranged on the man-machine interaction device, the direct-current stabilized power supply is electrically connected with the air switch, and the inspection conversion circuit board is electrically connected with the PT100 resistance sensor and the heating element. And the PT100 resistance sensor, the switch control device, the touch screen, the air switch and the inspection conversion circuit board are electrically connected with the PLC respectively. The heating and cooling speed can be rapidly increased, and the heat energy conversion efficiency is effectively improved.

The utility model discloses a multi-aperture electric heating constant-temperature water bath device which comprises a box body provided with a plurality of first water bath kettles and a plurality of second water bath kettles, and the box body further comprises a plurality of first heat insulation plates and a plurality of second heat insulation plates which separate the first water bath kettles from the second water bath kettles independently and are perpendicular to each other, electric heating rings are separately arranged at the bottoms of each first water bath kettle and each second water bath kettle, a pad net is arranged at the lower part of each second water bath kettle, the bottom of each second water bath kettle below each pad net is rotatably connected with a rotating paddle for stirring water flow, and a rotating shaft of each rotating paddle extends downwards to the lower part of each second water bath kettle and is connected with a rotating motor; and each rotary motor and each electric heating ring are independently and electrically connected to a microcontroller positioned on one side of the box body. The temperature of each water bath kettle can be independently controlled, a plurality of constant-temperature water bath kettles do not need to be purchased, the space occupation of a laboratory is reduced, the heat exchange of upper and lower water flows in the kettles can be increased, the heating speed of water in the kettles and the temperature uniformity are improved, and the working efficiency of the laboratory is improved.

The utility model relates to the technical field of preheating recovery, and discloses a preheating recovery structure of a water heat storage electric boiler, which comprises an electric boiler, heating wires are fixedly connected on the left side and the right side of the inner wall of the electric boiler close to the bottom, a circulating mechanism is arranged on the right side of the electric boiler, and a filtering mechanism is arranged in the circulating mechanism. Through the circulation mechanism, water flow is injected into the electric boiler through the water inlet pipe, the heating wire is started, water in the electric boiler is heated, the index of a thermometer is observed, then the water pump works through the working panel, the water pump pumps the heated water into the heat exchanger, and the heat exchanger supplies hot water for heating. Then water flow passing through the heat exchanger flows into the box body through a second connecting water pipe, the water flow is filtered by two filter plates in the box body, so that the water flow does not carry residues in the heat exchanger, the filtered water flow is injected into the electric boiler through a third connecting water pipe, and the water heating speed of the electric boiler is increased through waste heat of the water flow; the working efficiency is improved.

The application discloses an electric toothbrush, which comprises a main machine and at least one brush head, the main machine is provided with a plurality of main machine conductive ports, and the brush head is provided with at least two brush head conductive ports corresponding to the main machine conductive ports; the inside of the main machine is provided with a main machine control panel electrically connected with each main machine conductive port respectively, and the inside of the brush head is provided with a brush head control assembly electrically connected with each brush head conductive port respectively; when the brush head is connected to the main machine, the brush head conductive ports are in contact with and electrically connected with the main machine conductive ports, so that a power-on loop is formed between the main machine control panel and the brush head control assembly, and the main machine control panel can identify the function of the brush head according to the power-on loop. The electric toothbrush can automatically identify the function of the brush head and is convenient to operate.

The utility model relates to a temperature control device for COD (Chemical Oxygen Demand) digestion. The digestion device comprises a mounting shell with a rectangular hole, a digestion pipe arranged in the rectangular hole of the mounting shell, a liquid inlet and a liquid outlet which are formed in the middle parts of the top surface and the bottom surface of the mounting shell, two groups of heat dissipation assemblies arranged on two sides of the digestion pipe in a sliding manner, two groups of heating assemblies arranged on the other two sides of the digestion pipe in a sliding manner, and a driving assembly arranged on one side of the mounting shell, the connecting ends of the connecting rod assemblies are hinged to the bottoms of the two heat dissipation assemblies and the bottoms of the two heating assemblies respectively, and the detection assemblies are arranged on the outer walls of the two sides of the installation shell. The driving assembly can drive the other heating assemblies and the heat dissipation assembly to move through the connecting rod assembly when driving one group of heating assemblies to move towards the digestion pipe; through cooperation of the connecting rod assembly and the driving assembly, the heating assembly and the heat dissipation assembly can be driven to slide at the same time to be attached to the digestion pipe for heating or heat dissipation, the heating speed and the heat dissipation speed are effectively increased, only one driving assembly is needed, and cost is reduced.