147results about How to "fast heating" patented technology

The invention discloses a process for manufacturing alloy steel for a rail frog. The process comprises the following steps of: smelting, pouring, forging, and performing heat treatment. The rail frog manufactured by the alloy steel which is manufactured by the manufacturing process has properties such as tensile strength, low-temperature impact properties and the like which are much higher than those of high manganese steel, the service life of the rail frog can be greatly prolonged, and the rail frog is not required to be frequently replaced, so that the operating cost of a rail can be greatly reduced.

A pulse current assisted extrusion forming device and an extrusion forming method relate to an extrusion forming device and a method thereof. The invention solves the problems that the existing extrusion forming device is great in heat loss, and long in heating time, and the existing extrusion forming method is complicated in technical process flow, low in work efficiency and non-homogenous in distribution of density of the current produced inside the blank on the cross-section and easy to cause skin effect. A current-conducting female mold of the device is arranged in a mold cavity of an insulating outer film; a current-conducting male mold and the current-conducting female mold are used as electrodes and connected on a high frequency pulse power source; the pressure within the range of 5-200MPa is applied to the current-conducting male mold by an upper pressure head according to a yield strength value at the temperature selected by the blank to be formed so that the blank is extrudedto be a required shape by the mold after plastic extrusion deformation; the device has high heating speed and improves the work efficiency; and the method uses the heat effect of pulse current and the electro-plastic effect, thereby obviously improving the forming efficiency of the blank, increasing the material plasticity and saving the energy resource.

The invention relates to a method for stripping a laminated inorganic material, which comprises the following steps of: firstly preparing a laminated inorganic material organic intercalation compound, then decomposing the organic substance at the interlayer of the solid of the laminated inorganic material organic intercalation compound or the laminated inorganic material organic intercalation compound added into a proper solution within short time under the condition of ultrasonic waves or microwaves, escaping from the interlayer of the laminated inorganic material so as to rapidly strip the laminated inorganic material, and finally separating, washing, drying and grinding to obtain a product. By using the method, not only the laminated inorganic material can be stripped within short time, but also the good crystal structure of the laminated inorganic material can be kept, so that the traditional application of the laminated inorganic material is qualitatively improved, and the value is doubled and redoubled.

The invention discloses a quick-drying and repairing refractory material. The quick-drying and repairing refractory material comprises the following components in percentage by weight: 40%-80% of aggregate, 10%-25% of powder, 5%-20% of binding agent and 0.2%-4% of additive, wherein the aggregate is one substance or a mixture of more substances in ceramsite, expanded perlite, flint clay, high-alumina bauxite, corundum, light brick sand and heavy brick sand; the powder is a mixture of at least three components in clay, hollow microsphere, closed cell perlite, alumina powder, fine alumina powder, siliceous dust and perlite powder; the binding agent is one substance or a mixture of more substances in high-alumina cement, pure calcium aluminate cement, water glass and a mixture of phosphoric acid and aluminium phosphate as well as phenolic resin; and the additive is one substance or a mixture of three substances in high-efficiency water reducing agent, inorganic phosphate and organic fiber. Compared with the prior art, the quick-drying and repairing refractory material disclosed by the invention has the advantages of good binding performance with the original lining, high temperature rising speed, high intermediate-temperature strength, stable high-temperature volume and strong corrosion resistance and the like.

In a method for operating a spark-ignition, direct-injection internal combustion engine, wherein fuel is injected into a cylinder of the internal combustion engine and is ignited by a spark plug as a function of at least the load of the internal combustion engine, a crank angle is determined at which a first amount of fuel is injected into the cylinder during the intake stroke whereby a lean mixture is formed in the cylinder, subsequently, as a function of at least the load of the internal combustion engine, a crank angle is determined at which a second amount of fuel is injected, whereby a mixture cloud, which is richer than the lean mixture is formed in the lean mixture and a third amount of fuel is injected in the form of a stratified injection for forming a locally enriched and ignitable fuel/air mixture in the region of the spark plug close to an ignition time which is then ignited by the spark plug causing also combustion of the mixture cloud and the lean mixture.

The invention relates to a curing-type electronic cigarette suitable for curing a cigarette. The curing-type electronic cigarette comprises a shell. A containing cavity for containing the cigarette is formed inside the shell and internally provided with a heating sheet. The heating sheet is used for being inserted into the cigarette from the end of the cigarette and heating and cutting the cigarette to generate smoke. According to the curing-type electronic cigarette, the heating sheet is inserted into the cigarette from the end of the cigarette and heats and cures the cigarette to generate the smoke, the heating speed is high, rapid smoke discharging can be achieved, and therefore user experiences are good.

The invention discloses eutectic soldering equipment of an LED wafer. The eutectic soldering equipment comprises a heating device, a drive control system, a power configuration box body, a soldering working table, an eutectic soldering platform arranged in the middle of the front part of the soldering working table, a bracket supplying device and a wafer supplying device which are arranged in a manner of surrounding both sides and the rear part of the eutectic soldering platform respectively, a scaling powder supplying device arranged above the eutectic soldering platform, a nitrogen cooling device arranged on the eutectic soldering platform, a pulse current heating device arranged on one side of the eutectic soldering platform and a constant-temperature current heating device arranged inside the eutectic soldering platform. The eutectic soldering equipment has a high heating speed and high soldering precision, and enables the LED wafer after being soldered to have a better heat transfer effect.

A method for preparing powder tea by adopting microwave drying of dendrobium nobile lindl comprises the following steps: leaves of fresh dendrobium nobile lindl are removed, the fresh dendrobium nobile lindl is washed, drained and placed in a 500-3,000 w microwave field to dry for 5-60 min until the water content is 50%; then the dendrobium nobile lindl is cut into slices by a traditional Chinese medicine slicer, the dendrobium nobile lindl slices are placed in 500-1,500 w microwave to dry for 5-30 min, and a dry dendrobium nobile lindl product with the water content lower than 12% is obtained; and the dry dendrobium nobile lindl product is pulverized by a pulverizer and bagged. The method has the advantages of high heating speed, uniform inner and outer heating, sterilization, non-pollution, low carbon, energy saving, low production cost and high drying efficiency, and can further improve the heating quality greatly, maintain nutritional components of the raw material and prevent damage and loss of active ingredients in the material.

The invention relates to a non-magnetic heating temperature control system, in particular to the non-magnetic heating temperature control system which is used for an atom magnetometer system and utilizes laser to heat an atomic air chamber. The non-magnetic heating temperature control system comprises a laser, a 1*4 optical divider, an atom heating chamber and a temperature controller, and is characterized in that the laser and the 1*4 optical divider are connected through a tail fiber, the 1*4 optical divider and the atom heating chamber are connected through a tail fiber, and the temperature controller and the laser are connected through a single-core shielding signal line. An enough span exists between the electrical part, which can generate a disturbing magnetic field of the laser and the temperature controller and the atom heating chamber, and therefore the situation that a working area of the atomic air chamber generates magnetic field interference is avoided. A laser heating mode is adopted, the influence of introducing magnetic noise is avoided in the same way, the heating speed is high, a three-wire non-magnetic platinum resistor is used as the temperature sensor, the accuracy of measuring the temperature is guaranteed, and meanwhile the interference of the magnetic noise is avoided.

The present invention discloses a ceramic PTC thermistor element preparation method, which comprises: adopting BaCO3, CaCO3 and TiO2 as main raw materials, mixing with a first semiconducting agent, carrying out wet ball milling for a predetermined time, carrying out pressure filtration and drying, carrying out a pre-burning reaction to synthesize a main material 1, adopting Pb3O4 and TiO2 as main raw materials, mixing with a second semiconducting agent, carrying out wet ball milling for a predetermined time, carrying out pressure filtration and drying, carrying out a pre-burning reaction to synthesize a main material 2, mixing the main material 1, the main material 2, a dopant, a sintering auxiliary agent and the like, correcting the surface temperature parameter by adding a specific amount of a moving agent or adjusting the proportion of the sintering auxiliary agent, carrying out wet ball milling for a predetermined time, and carrying out granulation, forming, sintering, electrode to prepare the finished product. The present invention further discloses the ceramic PTC thermistor element.

The invention discloses a variable-diameter bearing inner ring induction replacer, and belongs to the technical field of mechanical engineering and automation. In the induction replacer, radial magnetizers and circumferential magnetizers are arranged at intervals in turn; coils are sleeved on the radial magnetizers respectively; fixing rings are positioned on the upper side and the lower side of a magnetizer circumferential group; a front radial adjusting ring and a reverse radial adjusting ring are positioned on the two sides of each fixing ring respectively; a fixing clamp is fixedly connected with the front radial adjusting ring and the reverse radial adjusting ring; a handle is in threaded connection with circumferential magnetizer holes on the circumferential magnetizers; a fixing rod and a clamping rod are fixedly connected in two fixing clamp holes on the fixing clamp; the two ends of two pull rods are connected to the fixing rod and the clamping rod through bolts; guide pillar bearings which are arranged at the two ends of a guide pillar are in clearance fit with a front radial adjusting ring spiral groove and a reverse radial adjusting ring spiral groove respectively; and a rolling ball retaining frame in a rolling body is fixedly connected with the fixing rings 3. Through the induction replacer, bearing inner rings of different external diameter sizes can be quickly and nondestructively disassembled and assembled, and the surface temperatures of the bearing inner rings are easy to control; and the induction replacer can also be used for an interference assembly line of a bearing and has the advantages of low cost, low energy consumption and no pollution.

The invention discloses a vertical spraying solid-solution quenching machine train for high-strength aluminium alloy sheets. The vertical spraying solid-solution quenching machine train comprises a charge platform, a discharge platform and a solid-solution heating furnace body, wherein the charge platform and the discharge platform are arranged at the two sides of the solid-solution heating furnace body respectively; an air knife, a spraying quenching device and an air-drying system are sequentially installed between the solid-solution heating furnace body and the discharge platform; the charge platform, the discharge platform, the solid-solution heating furnace body, the spraying quenching device and the air-drying system are provided with a transmission rail platform on the same horizontal plane; special fixtures are movably distributed on the transmission rail platform; and the special fixtures clamp the quenched plate materials by vertical clamping structures. The equipment disclosed by the invention is relatively simple, high in production efficiency, low in production cost, capable of producing the high-strength aluminium alloy sheets and medium plates with thicknesses of less than 12mm with high quality, and applicable to the thickness range from 0.5mm to 12mm, of the plate materials.

The invention discloses an effective sealed steam drug-decocting machine. The effective sealed steam drug-decocting machine comprises a mounting base, a pot body and a pot lid, wherein the pot lid and the pot body are connected in a sealing way; a porous cylinder is arranged in the pot body; a medium heating cavity is formed in the outer wall of the pot body; the edge of an opening end of the pot body extends out of the mounting base; the edge of an opening end of the porous cylinder is lower than the edge of the opening end of the pot body; a steam containing cavity is formed in the space between the opening end of the porous cylinder and the opening end of the pot body; a through hole in the side wall of the porous cylinder forms a liquid outlet hole which communicates the inner cavity of the pot body with the inner cavity of the porous cylinder; a liquid-outlet passage is formed in the bottom of the pot body and extends out from the side wall of the mounting base through a draining pipe; a steam-inlet pipe, a steam-outlet pipe, a steam-inlet valve and a steam-outlet valve are arranged on the mounting base; the steam-inlet pipe and the steam-outlet pipe are both communicated with a medium heating cavity. The effective sealed steam drug-decocting machine is simple in structure; steam is adopted to heat, so that temperature is more uniform, and the problem that a pot is burnt when the bottom temperature is high and the upper temperature is low is not caused; steam in the medium heating cavity can be reclaimed to be circularly used in a steam generator, so that the effective sealed steam drug-decocting machine is more sanitary, energy-saving and environment friendly.

The invention discloses a non-combustion type tobacco cigarette smoking device based on electromagnetic induction heating. The device comprises a shell, a smoking nozzle is connected to one end of the shell, a heating tube is arranged in the shell, a tobacco heating cavity used for containing a tobacco product is formed in the heating tube, the heating tube is wrapped with a thermal insulation layer, an electromagnetic induction coil is wound on the thermal insulation layer, a PCB, a switch and a power module which are connected with the electromagnetic induction coil are further arranged in the shell, and the switch extends out of the shell; the smoking nozzle is provided with a smoking hole which is communicated with the tobacco heating cavity, air holes communicated with the tobacco heating cavity are formed in the surface of the shell, and the air holes are located at the end, far away from the smoking nozzle, of the shell. In the using process of the non-combustion type cigarette smoking device, a traditional cigarette or tobacco shred can be placed in the tobacco heating cavity, the heating tube is heated by way of the electromagnetic induction heating, thereby the cigarette or the tobacco shred is heated, generated volatile matters enter the oral cavity through the smoking nozzle, and a user acquires the sense of satisfaction. By means of the non-combustion type cigarette smoking device, physiological needs of people for smoking can be satisfied, and meanwhile harm of 'passive smoking' is reduced.

The invention relates to a preparation method of a multihole zinc magnesium alloy/hydroxyapatite composite material. In view of the shortcomings of low mechanical property of multihole elemental zincand low biological activity in an in-vivo degradation process, hydroxyapatite, magnesium and zinc are used as raw materials, and a sodium chloride crystal is used as a pore forming agent, so that a multihole zinc magnesium alloy/hydroxyapatite composite material block body is prepared through powder blending, ball grinding powder mixing, discharge plasma sintering and removal of the pore forming agent. The preparation method is advanced in process, and data are precise, full and accurate; and the prepared multihole zinc magnesium alloy/hydroxyapatite composite material block body has a densitybeing 2.94 g/cm<3>, the porosity being 53 percent, an aperture being less than or equal to 450 micrometers, the yield strength being 60 MPa and the elastic modulus being 4 GPa, so that the multiholezinc magnesium alloy/hydroxyapatite composite material accords with human skeleton performance parameters and can meet a use requirement of a clinically medical orthopedic implant, and the preparing method is an advanced preparation method for the multihole ZnMg/HA composite material.

The invention relates to a titanium alloy sheet electric auxiliary segmentation progressive forming device and method. The device comprises a concave mold, a convex mold and a pulse power source. Theconcave mold and the convex mold are connected with the pulse power source, and the concave mold is wider than the convex mold; in the working process, the device is installed on a press, the length of a sheet is larger than the width of the concave mold, the sheet is placed between the concave mold and the convex mold, output current of the high-energy direct current pulse power source flows through the convex mold, the sheet and the concave mold to form a loop, and the sheet is subjected to segmentation progressive heating forming. Compared with the prior art, the high-energy direct currentpulse power source is adopted to directly heat a forming blank, heating of the whole set of mold is not needed, the heating speed is high, influences of heating on performance deterioration and surface oxidation on the titanium alloy sheet are reduced, the forming property of the titanium alloy sheet is improved, and springback after forming of the titanium alloy sheet is reduced; and combined with a segmentation progressive forming process, a large-scale titanium alloy thin-walled member can be formed, and the requirements of helicopter paddles to the titanium alloy overall edging can be met.

The invention relates to a feeding tank temperature control method and system. The method includes the steps that in each time of pulse heating in the process of pulse heating on a feeding tank according to a preset period, a controller receives a real-time temperature detection value sent by a temperature sensor and corresponding to the time of pulse heating; the controller determines corresponding heating coefficients according to numerical ranges where difference values between a process set value and the real-time temperature detection values are in, wherein the numerical range where a smaller difference value is in corresponds to a smaller heating coefficient, and the numerical range where a larger difference value is in corresponds to a larger heating coefficient; the controller calculates the heating temperature adopted in a next time of pulse heating according to the difference values and the corresponding heating coefficients, and the next time of pulse heating is carried out according to the heating temperature. The feeding tank temperature control method and system can overcome shortcomings existing in impulse type step-by-step heating in the prior art, improve feed liquid heating efficiency and enhance heating effects.

The invention relates to an in-situ thermal desorption remediation system and method for organic contaminated soil. The in-situ thermal desorption remediation system comprises a power supply and distribution system, a heating system, an extraction system, a tail gas and tail water treatment system, a monitoring system and a ground blocking system. The heating system is composed of a vertical heating well, a high-frequency electromagnetic field generator arranged in the heating well and a generator control device. The electromagnetic field generator is connected to the power supply and distribution system on the ground through a control box; an output end power supply rectifies, filters and inverts power-frequency alternating current into high-frequency alternating current through a controlpanel, the high-frequency alternating current is connected to an electromagnetic heating coil through a connecting wire to generate an alternating magnetic field; and a conductor generates eddy current under electromagnetic induction to cause heating of the conductor, so that temperature is transferred in soil, the soil is rapidly heated, and organic pollutants are evaporated. According to the technical scheme, heating of the target repair depth is targeted, the heating speed is high, the heat utilization efficiency is high, and the repair efficiency can be remarkably improved.

The invention relates to a net array type heating method for a glass toughening furnace. Both ends of a roller way are rotatably supported between both sides of the furnace body; heating elements above and below the roller way are used to heat processed glass loaded on the roller way; a blast pipe parallel to the roller way is arranged between the upper and/or the lower of the roller way and the heating elements, and the heating elements and the blast pipe are crossed in a net shape; and a high temperature fan compresses hot air to the blast pipe. The invention is characterized in that the refractory steel blast pipe is parallel to the transmitting roller way, and the refractory steel blast pipe and heating wires are perpendicularly arranged to form a net array. The furnace wires carry out radiation heating on the glass and the refractory steel blast pipe adjacent to the furnace wires simultaneously, the fan blows the air heated in the furnace into the refractory steel pipe, the hot air is heated continuously when flowing in the steel pipe and is then blown to the surface of the glass to heat the glass, and the glass plate heating speed is greatly raised under the double effects of radiation heating and convection heating, thereby the processed glass has higher quality.

The invention discloses a rapid testing method for the surface tension of molten slag based on a heat wire method. The rapid testing method comprises the following steps: raising the temperature in aheat wire method device and enabling a slag sample with the granularity greater than 200 meshes to be in contact with a high-temperature thermocouple wire so as to smelt the slag sample; adjusting thesize of slag sample molten drops and enabling an observation surface to be parallel to a water level; photographing a contact picture of the slag sample molten drops and the thermocouple wire; processing the contact picture of the slag sample molten drops and the thermocouple wire to obtain a contact angle theta; calculating the surface tension of the slag sample molten drops by utilizing the following equation: gammas=gammasl+gammal costheta, wherein gammas represents surface free energy of the thermocouple wire, the gammasl represents the tension of a thermocouple wire and molten slag interface, gammal represents the surface tension of the molten slag and theta represents the contact angle. According to the rapid testing method, the surface tension of the molten slag can be rapidly obtained; surface tension data calculated by the method provided by the invention has a very high matching degree with an accepted surface tension experiment testing data value and has very high precision; and the temperature rising time is only about 1min and the temperature rising speed is rapid.

The invention relates to an anisotropic rare-earth magnet light wave microwave sintering method. Pressed and formed R-Fe-B (R is at least one of rare earth elements) series anisotropic rare-earth magnet green bodies after the completion of magnetic field orientation are placed in a light wave microwave oven, and the combination energy of light waves and microwaves are used for sintering. The frequency of microwaves is 500 MHz to 250 GHz, the atmosphere is vacuum or inert gas, the power of the light waves and the microwaves is proportionally controlled as required, and the sintering temperature is 980 DEG C to 1200 DEG C. The respective heating characteristics of the light waves and the microwaves are used, the heating speed is high, and the temperature gradient in the magnet green bodies is further reduced in sintering; the zero gradient even heating in a larger area in a sintered material can be realized, the grain growth inside the material is even and fine, and the magnetic performance of the finished product can be increased; meanwhile, the invention has the characteristics of low thermal stress, less cracking and deformation, energy saving, environment protection and the like.

The invention discloses a large-fruit hawthorn bud tea preparation method. The method comprises the following steps: 1, spreading green tea leaves in the natural environment for air-drying water in the surfaces of the green tea leaves; 2, placing the spread tea leaves in a light wave-microwave oven, deactivating enzymes in a microwave cooking mode for 7-10min two or three times, and carrying out light-press rolling and cooling after the enzyme deactivation and before next-time enzyme deactivation; 3, carrying out rolling shaping of the taken enzyme-deactivated tea leaves while hot, and spreading for air-drying; and 4, placing the spread enzyme-deactivated tea leaves in the light wave-microwave oven, drying in a light wave-microwave combination mode until the water content of the tea leaves is below 7%, and taking out to obtain a large-fruit hawthorn bud tea. The large-fruit hawthorn bud tea prepared through adopting the method greatly reserves the nutritional components of hawthorn leaves, so the healthcare effects of the hawthorn leaves can be well performed. Additionally, the method has the advantages of simple operation and short drying time.

The invention discloses a polymer foaming device. The polymer foaming device comprises a mold, a radio-frequency power supply, a first radio-frequency electrode and a second radio-frequency electrode.The mold is provided with a mold cavity. A concave pit is formed in the cavity wall of the mold cavity. The first radio-frequency electrode and the second radio-frequency electrode are embedded in the concave pit. An interlayer is arranged in the concave pit and formed by compositing an electromagnetic wave shielding material and an electrical insulating material. The first radio-frequency electrode and the second radio-frequency electrode are connected with the anode and the cathode of the radio-frequency power supply through cables correspondingly. The invention further discloses a method for polymer foaming through the polymer foaming device. When the radio-frequency power supply is started, a high-frequency alternating electric field is formed between the first radio-frequency electrode and the second radio-frequency electrode, polymer is heated, and supercritical foaming is achieved. Compared with the prior art, the polymer foaming device is simple in structure, convenient to operate, even in heating and high in heating speed and efficiency and can be widely applied to production of foaming materials.

The invention relates to a dual-purpose steam box and a working control method thereof. The dual-purpose steam box comprises a box body, wherein a liner assembly with a cooking chamber, a box door, a steam generator and a water tank communicated with the steam generator are arranged in the box body; the dual-purpose steam box is characterized in that a temperature sensor and/or a pressure sensor are/is arranged in the cooking chamber; a steam valve for communicating the cooking chamber with the outside is arranged on the liner assembly; an electromagnetic lock for closing the box door is mounted on the liner assembly or the box door; a control assembly capable of outputting a normal pressure steam working mode and a pressure steaming work mode is arranged in the box body; furthermore, a water level control box is arranged in the box body; the water tank is connected with the steam generator through the water level control box; the position of the steam generator in the box body is higher than that of the water level control box in the box body; a heating element, the temperature sensor and/or the pressure sensor, the electromagnetic valve, a steam valve, a first water pump, a first check electromagnetic valve, a third check electromagnetic valve and a second water pump of the steam generator are connected with the control assembly.

A microwave racemizing method for optical active amino acid or its salt. It is carried out by dissolving optical active amino acid or its salt into alkali or acid solution, adding aldehyde or ketone, or metal ion, or mixture of aldehyde, or ketone or metal ion as catalyst, racemizing reacting, and forming racemic amino acid or its salt. Its advantages include simple operation, high productivity, low cost, moderate reaction, and easy purification.

The invention provides a novel method and equipment for separating a volatilizable material from a material by continuous vacuum drying. The invention is characterized in that a plurality of cushion strips or a plurality of cushion plates are stacked among a plurality of material layers which are made from a plurality of metal stripes or a plurality of metal plates with high thermal conductivity to be tightly contacted with a heater; the cushion strips or cushion plates are in a hollow or solid structure, and the end sockets of the cushion strips or cushion plates are provided with seal plates or provided with no seal plates so as not to be mutually and fixedly connected with the heater and other components in a material box and be capable of willfully and freely moving; the box is internally and reasonably provided with the heater; the box is internally provided with a structure strengthening piece; the material is preheated to a stated temperature, preserved and balanced for a stated time, and vacuumized, and the vacuumizing speed is controlled, so that the material is continuously dried to separate out the volatilizable material in the continuous vacuum environment; and after each technological parameter is up to the standard, the heating and the vacuumizing are stopped, so that the temperature of the material is preserved and balanced for a stated time under the condition. The invention has the advantage of being short in drying time, high in efficiency, low in energy consumption, simple in technology, good in drying quality, large in the volume of equipment, convenient to load the material, large in loading quantity, low in running cost, and is insecticidal, mildewproof, defatted and peculiar smell-removed.

The invention discloses a spiral water pipe electric heating device of a water heater, and belongs to the technical field of water heaters. The device is composed of a heating box, a heating system and a heat insulation heat preservation layer; the heating system is a combination formed in a manner that no less than one heating pipe is arranged in a spiral pipeline of no less than one spiral waterpipe in a sleeving manner, and no less than one spiral water pipe is arranged in a pipeline of no less than one heat reflection pipe in a sleeving manner, a metal pipe is wound into the spiral pipeline, a water path of the spiral pipeline is lengthened, the spiral water pipe is heated through the heating pipes, the heat reflection pipes reflect and radiate heat from the heating pipes to the spiral water pipes, the heat insulation heat preservation layer isolates outward losing of heat of the heat reflection pipes, the comprehensive efficiency of heating of the water in the spiral water pipescan be improved, the aim of using the low-power heating pipes to heat the water can be achieved, and the energy saving effect is achieved.

The invention discloses a battery thermal management system and a control method thereof. The system comprises a medium-temperature heat storage unit, a first high-temperature heat storage unit and atwo-phase circulation unit, wherein the medium-temperature heat storage unit stores the heat generated by a battery stack by using a first heat storage material and transmits the stored heat to the battery stack when the environmental temperature is detected to be lower than a first preset temperature; the first high-temperature heat storage unit is connected with the medium-temperature heat storage unit and stores the heat generated by the battery stack by using a second heat storage material; and the two-phase circulation unit is connected with the medium-temperature heat storage unit and the first high-temperature heat storage unit and transmits the heat stored by the first high-temperature heat storage unit to the medium-temperature heat storage unit when the temperature in a medium-temperature heat storage device of the medium-temperature heat storage unit is lower than the phase change temperature of the first heat storage material. The battery thermal management system solves atechnical problem that the battery management system in the related art cannot cope with the rapid change of temperature and results in the damage of the battery stack.

The invention discloses a constant temperature gas water heater and a control method thereof, wherein the constant temperature gas water heater comprises a burner, a heat exchanger, a water inlet pipe, a water outlet pipe, a temperature detection device, a water flow detection device, a gas control valve and a controller, the gas water heater further comprises a current stabilizer and a water flowcontrol valve, the current stabilizer is arranged on the water inlet pipe, a water inlet and a first water outlet are formed in the water flow control valve, the water inlet communicates with the water inlet end of the current stabilizer, the first water outlet communicates with the water outlet end of the current stabilizer, and the controller is electrically connected with the water flow control valve so as to control the opening and closing between the first water outlet and the water inlet. The water heater provided by the invention can form multi-channel water flow to realize the switching of large and small water gears; in addition, because the water heater is in a small water flow position in a heating stage, the problems of long waiting time for hot water and much waste of cold water in the existing constant temperature gas water heater are solved, meanwhile, the influence of water supply pressure in the heating stage can be reduced, and the rapid heating effect can be improved.

The invention discloses a process for producing pet food by utilizing a fresh meat grouting technology. The process comprises the following steps: S1, grinding fresh meat, controlling unfreezing temperature and combining a slicing machine, a meat grinder and a colloid mill so as to ensure the fineness of meat pulp from the first step; S2, performing heating and homogenization treatment on the fresh meat pulp, performing pipeline-type circulating self-control heating, and generating strong shearing force in high-speed rotation through a pipeline-type emulsifying pump and precise combination ofa rotor and a stator so as to achieve the purpose of homogenizing and emulsifying the meat pulp; S3, cleaning a meat pulp system by using a CIP online cleaning system so as to solve the technical problems that: in traditional technologies, only pure water is adopted for flushing, incomplete cleaning is likely to be caused, bacterial pollution is caused, and products go bad; and S4, enabling the meat pulp to enter a conditioner for conditioning treatment, and then enabling the meat pulp to enter a double-screw bulking machine so as to complete a bulking process. According to the process disclosed by the invention, the loss rate of proteins and vitamins in the meat raw material in multiple processing processes is reduced by utilizing the fresh meat grouting technology, and the natural freshfragrance of meat, fishes and shrimps is reserved.