249results about How to "Reduce overheating" patented technology

The invention relates to a heating device for improving heating quality of steel billets and a using method thereof. The heating device comprises a heating furnace, a heat storage system blower, a flat flame system blower, a combustion-supporting air pipeline, a gas pipeline, a heat storage system draught fan, an air heat exchanger, a gas heat pipe exchanger, a smoke exhaust pipeline and a chimney. 2-4 ignition burners are arranged at a preheating section of a heating furnace, and 12-30 pairs of heat storage type burners and 4-12 flat flame burners are respectively arranged at a heating section and a soaking zone. The using method comprises the following steps of reasonable distribution of combustion-supporting air and gas flow rate of the heat storage type burners and the flat flame burners, sectional configuration of furnace temperature and heating time, preheating of combustion-supporting air and gas temperature through a high-temperature smoke gas and furnace tail gas in grades, alternative furnace feeding of cold and heat steel billets, intermittent movement of the steel billets, and vaporization cooling of the steel billets. The flow field in the furnace is modified through the system, the optimal configuration of flow rates of air and gas in the burner is realized through reasonable arrangement of gas and air pipeline systems, and the waste heat of high-temperature smoke gas of the heating furnace is gradiently utilized, thus the in-furnace time is shortened, the uniformity of heating the steel billets is improved, and the high-efficiency heating of the steel billets is realized.

The invention discloses an all-process control method for the main steam temperature of a utility boiler. The all-process control method comprises the following steps: firstly, partitioning the typical working condition points of the operation of the utility boiler; secondly, testing the main steam temperature mathematical models at the typical working condition points; thirdly, caculating the optimal values of PID (Proportion Integration Differentiation) adjustable parameters at the typical working condition points; fourthly, utilizing a piecewise linear function module in a DCS (Decentralized Control System) to achieve control logical configuration; fifthly, realizing the approximate optimal control of the main steam temperature at any working condition points in the DCS. The all-process control method for the main steam temperature of the utility boiler has the benefits that automatic dispatching of the optimal values of PID adjustable parameters of the inner loop and the outer loop is guaranteed when the main steam temperature system of a thermal power generating unit is within the full-load range of the unit operation, the main steam temperature adjustment quality is greatly improved, and the over-temperature probability of the unit under the condition of great load changes is lowered.

A battery charge / discharge control device (20) includes an input-enabled power adjustment means (40) having an input-enabled current calculation means (42) and an input power limit value calculation means (44). The input-enabled current value calculation means (42) uses a battery current value, a battery temperature value, and an estimated charge capacity value at the time ''t'' upon execution ofdetection, so as to obtain an input-enabled current value reduction amount per unit time during charge and an enabled current amount recovery amount per unit time when being left uncontrolled. Moreover, the input-enabled current value calculation means (42) calculates an input-enabled current value Ilim(t) to a battery (10) according to the previously calculated input-enabled current value Ilim(t-1) which has been calculated previously or the only initially set input-enabled current value Ilim(O). The input power limit value calculation means (44) calculates the battery input power limit value so that the input current limit target value obtained in accordance with the input-enabled current value Ilim(t) is greater than an actual battery current value. Thus, the input-enabled power to thebattery (10) is adjusted in accordance with the battery input power limit value.

The invention discloses a data coding method and device and a data decoding method and device. According to the scheme, after a to-be-coded or to-be-decoded data set is determined, a data format set supported by a hard coder or a hard decoder is obtained; if untested data formats exist in the data format set, a target data format needing to be tested is selected; when a soft coder or a soft decoder is controlled to code or decode currently processed target data, the hard coder or the hard decoder is controlled to code or decode the target data based on the target data format; and if the data coded by the hard coder or the data decoded by the hard decoder is normal, the coding of the soft coder or the decoding of the soft decoder can be terminated, and the soft coder or the soft decoder isdirectly used for coding or decoding the unprocessed data in the data set. According to the scheme provided by the invention, coding and decoding modes can be selected reasonably, and a CPU occupationrate can be reduced to the greatest extent.

The invention provides a method for allocating service scheduling in a CDN node, which is applied to a cache server. The method comprises the following steps: when a request message for obtaining content resources is received, a uniform resource locator of the content resources is extracted from the request message; an ID of a content resource is determined according to a uniform resource locator;according to the ID of the content resource and the preset selection algorithm, all the cache servers in the CDN node are selected to obtain the root cache server for obtaining the content resource.The invention also provides a distribution device and a storage medium for service scheduling in a CDN node, Compared with the prior art, the technical proposal of the invention greatly reduces the SLB scheduling load, avoids the problems caused by inconsistent content index, delayed synchronization and SLB abnormality, and simultaneously improves the load balance degree of each cache server in the CDN node.

The invention provides an electromagnetic gun. The gun tube is provided with multiple hole pairs in the vertical direction of the axis, and each hole pair is composed of two small holes arranged in the opposite side walls of the gun tube. Each copper coil, capacitors, each photoelectric triode and each light emitting diode are connected to one control circuit board; the photoelectric triode and the light emitting diode are respectively arranged in the two small holes of the hole pair of the gun tube; the copper coil wraps the hole pair of the gun tube; the control circuit board and the gun tube are erected on the capacitors; and the gun tube is internally provided with a bullet. The control circuit board is externally connected to a power supply so as to charge the capacitors. When the bullet moves to the hole pair, the control circuit board controls the capacitors to discharge electricity to the copper coil according to the change due to induction signal shielding, and the cooper coil can generate a strong magnetic field to drive the bullet to accelerate. According to the invention, a synchronization problem of multi-stage coils in an acceleration process is solved, the overheating of the coils can be reduced, and the electromagnetic gun is simple and compact in structure, is convenient to operate, is easy to adjust, is low in cost, and is high in stability and reliability.

The invention discloses a dendrobium officinale healthcare product with an auxiliary blood glucose reducing function. The dendrobium officinale healthcare product comprises the following raw materials in parts by weight: 35 to 45 parts of fresh dendrobium officinale bars, 1 to 2 parts of American ginseng, 2 to 4 parts of the root of kudzu vine, 2 to 4 parts of radix trichosanthis and 1 to 2 parts of fructus schizandrae. A preparation method for the dendrobium officinale healthcare product with the auxiliary blood glucose reducing function comprises the following steps: weighing the raw materials; processing the fresh dendrobium officinale bars; processing the American ginseng; performing alcohol extracting; performing water extracting; drying; batching. According to the dendrobium officinale healthcare product with the auxiliary blood glucose reducing function disclosed by the invention, the raw material formula is from clinical practice under the guidance of the theory of traditional Chinese medicine; the herbal medicines in a prescription are concise and are high in pertinency; the medicines in a raw material formula can nourish yin, benefit qi, clear heat and promote the secretion of saliva or body fluid; the active ingredients of the medicines are easy to absorb and are favorable to play efficacy; the medicinal materials in the raw material formula have the homology of medicine and food, and have no toxic or side effect.

An epicyclic gearbox oil scavenge arrangement. The epicyclic gearbox is of the planetary or differential type and comprises an input sun gear (28); a plurality of planet gears (32) that mesh with the sun gear (28) and are driven therefrom; an annular planet carrier (34) that couples the planet gears (32) in known relative orientation and is configured to precess around the sun gear (28); and a ring gear (38) that meshes with each planet gear (32). The ring gear (38) comprises ejection apertures (44) that extend radially therethrough and the planet carrier (34) comprises at least one lobe (42) that extends radially from the periphery of the planet carrier.

A method comprising in response to coolant loss in a turbocharged engine, deactivating one or more engine cylinders while limiting engine load of one or more active cylinders based on an engine speed, and a cylinder head temperature.

The invention proposes a solar heat collection automatic gradient phase change heat storage energy gradient utilization device. The device comprises such parts as a solar heat collecting layer, a gradient phase change heat storage layer, an automatic heat conducting layer and a shell. The solar heat collecting layer is arranged on the outer side of a high-temperature phase change heat storage layer; the gradient phase change heat storage layer includes the high-temperature phase change heat storage layer, a medium-temperature phase change heat storage layer and a low-temperature phase change heat storage layer; and the automatic heat conducting layer is arranged among the phase change heat storage layers for automatically building / cutting a transfer heat bridge among the phase change heat storage layers. The solar heat collection automatic gradient phase change heat storage energy gradient utilization device can adapt to solar radiation change to automatically adjust the quality of a phase change material participating in heat storage, to guarantee the phase change material to fully generate the phase change and to fully exert the phase change potential of the phase change material, and can realize gradient utilization of solar heat energy to achieve the purpose of improving the solar utilization rate.

The invention relates to an injection screw of an injection machine which has the functions of preventing a material from refluxing and stopping reverse and consists of a screw head, a check ring, a thrust ring and a screw body. The novel check ring with an inner flange and a clamping head, the screw head with a radial cutting groove and the thrust ring with a step surface realize excellent seal performance and eliminate the leakage problem caused by nonmelt grains, contaminations or other impurities by the slide closure between the inner flange of the check ring and the cylinder of the screw head as well as between the inner annular surface of the check ring and the step surface of the trust ring. In injection, the area of the larger end surface of the check ring ensures the realization of fast starting and shortens the closing time of the check ring. The fused masses are promoted to be further mixed when the radical cutting groove of the screw head is plasticized; in injection, the refluxing of the fused masses can be buffered; the leakage amount of the fussed massed can be reduced and the measuring precision is improved.

The present invention relates to a vertical, three-dimensional semiconductor device (10) comprising a source layer (102) on a substrate (104), a horizontal stack of layers (106) of a repetitive sequence on the source layer (102), each sequence comprising an electrically isolating layer (108) and an electrically conductive gate layer (110). An electrically isolating layer (108a) of the stack of layers (106) is in contact with the source layer (102), a vertical channel structure (112) extending through the horizontal stack of layers (106), a metal drain (114) being arranged above the horizontal stack of layers (106) and the vertical channel structure (112), the source layer (102) being arranged to inject charge carries into the vertical channel structure (112) and the metal drain (114) being arranged to extract charge carries from the vertical channel structure (112). The semiconductor device (10) may be junction-less and the vertical channel structure (112) may comprise a high mobility semiconductor material.

The invention relates to a gasification chamber with a top-mounted main nozzle and a gasification furnace. The gasification furnace comprises a furnace body shell, the gasification chamber arranged at the inner upper part of the shell, a chilling chamber positioned at the inner lower part of the shell, a deslagging port positioned at the bottom of the gasification furnace and a synthetic gas outlet positioned in the lower sidewall of the gasification furnace, wherein the gasification chamber comprises the main nozzle positioned in the top center of the gasification furnace or / and top auxiliary nozzles on the top tapered section of the gasification furnace or / and sidewall auxiliary nozzles positioned on the straight section sidewall of the gasification furnace; the inner wall of the gasification chamber can be an inner wall consisting of a refractory material or a composite inner wall consisting of a water-cooled wall and a refractory-material lining. According to the gasification chamber and the gasification furnace, due to the combined control of the main nozzle and the auxiliary nozzles, the effects of optimizing the distribution of a flow field in the furnace, prolonging the effective retention time, increasing the carbon conversion rate and reducing the local overtemperature of a wall surface are achieved.

The invention discloses a method for processing multimedia information and electronic equipment. The method comprises the following steps of receiving the multimedia information transmitted by second electronic equipment, wherein the multimedia information at least includes first image information; forming a first image through the first image information; and carrying out image processing on the first image information so as to form second image information, wherein the second image information can be used for providing a second image which has better image quality than the first image for the second electronic equipment and / or third electronic equipment.

A pulsed tungsten argon arc welding method comprises the following steps that (1) gas proportion of protective gas is determined; (2) composition of parent material is determined; (3) composition and diameter of a soldering wire is determined; (4) the welding is conducted according to the welding process specification. The welding process of the step (4) is characterized in that the requirements of the welding process comprise the steps that (a) the protective gas is the mixed gas of argon and oxygen, wherein at room temperature, the argon is 98% in volume, and the O2, namely the oxygen is 2% in volume; (b) it is guaranteed that the droplet transition is the one-pulse-one-droplet pulse jet flow transition in the welding process. According to the technical scheme, the pulsed tungsten argon arc welding method has the advantages that the welding spatter is small, bond area performance is improved, appearance of weld forms well, all position welding are applicable, and current range is wide.

The invention discloses a preparation method of detonation-sprayed tungsten carbide wear-resistant coatings which can be applied to connecting pieces of helicopter rotor systems. The method comprises the following steps: carrying out cleaning and sand blowing treatment on the surface of a substrate of a workpiece; preparing a tungsten carbide wear-resistant coating on the surface of the substrate of the workpiece by using a detonation spraying method, and controlling the temperature of the substrate of the workpiece at 60-120 DEG C; and after the detonation spraying is completed, carrying out grinding finish-machining on the coating by using a diamond or cubic boron nitride grinding wheel until the surface of the coating on the substrate of the workpiece has no burn and crack; the microhardness HV0.3 of the coating is 1000-1400; the bonding strength of the coating and the substrate of the workpiece is greater than or equal to 70 MPa; the porosity is less than or equal to 1.0; and the oxygen content is less than or equal to 2%. Once the method provided by the invention is adopted for carrying out spraying treatment on the surface of a connecting piece of a helicopter rotor system, the failure of parts caused by fretting wear and surface tear can be effectively avoided, so that the service life of the coating can be increased by 5-8 times.

The invention relates to insulation technology, in particular, to a combined heat-power test device for compatibility between gas and a solid material. The combined heat-power test device comprises asealed tank, a high-voltage generating system, an air charging device, and a heating device. The sealed tank includes a tank body with an open upper end and a top cover arranged at the top of the tankbody; and the top cover and the tank body form a sealed cavity. The high voltage generating system includes a metal guide rod connected to a transformer, an insulating casing tube, a grading ring, ahigh-voltage electrode connected to the metal guide rod, a ground electrode connected to the tank body, and a spring connected to the ground electrode, wherein the insulating casing tube and the grading ring are arranged outside the metal guide rod. The air charging device includes a valve and a barometer that are connected to the tank body. The heating device includes a heating belt arranged on the outer wall of the tank body. With the provided combined heat-power test device, high-atmospheric-pressure-resistant, high-temperature-resistant, corrosion-resistant, safe and reliable long-term compatibility testing of the tank body is realized; the local overheating in the sealed tank can be monitored; the high safety of the high voltage test is ensured. The provided device has advantages of small size, low power consumption, reduced test occupation area, and low cost.

The invention discloses a production process of active lime. The process comprises the following steps of (1) screening and pretreatment of limestone, (2) mixing, (3) preheating, (4) calcining, (5) cooling and (6) post-treatment. Firstly, an additive used in the production process reduces underfiring and overburning of the lime, increases the decomposition speed of CaCO3, shortens the calcining time, correspondingly reduces the energy consumption and is beneficial to industrial popularization. Furthermore, carbon is also added, decompression operation is adopted after preheating and before cooling separately, correspondingly the elements sulfur and carbon which remain in lime raw materials can be volatilized out more thoroughly, and the recombination of the elements with calcium oxide is avoided, so that the purity of the active lime is improved, and the activity degree of quicklime is further improved.

The invention discloses a preparation method of a tungsten carbide coating layer sprayed on a surface of an aluminum base material through explosion. The preparation method comprises the following steps: (1) the surface of an in-situ synthesis TiB2 particle-reinforced aluminum base material is pretreated by adopting an oil removing and shot blasting process; (2) a wear resisting and corrosion resisting WC-10Co4Cr coating layer is prepared on the surface of the in-situ synthesis TiB2 particle-reinforced aluminum base material by adopting a pulse explosion spraying method; and the temperature of the aluminum base material is controlled within 60-120 DEG C; (3) after the spraying is finished, the coating layer is grinded and finished by adopting a diamond grinding wheel; and (4) the coating layer is closed by adopting epoxy resin sealant. The method can prepare the coating layer on the surface of a composite material of a propeller hub plywood of a connecting piece of a helicopter rotor system so as to improve the corrosion resistance of the surface of the TiB2 particle-reinforced aluminum base composite material, and can effectively prevent the invalidation caused by fretting wear and surface scratching so as to prolong the fatigue fracture resisting service life of the material above 3 times.

A method is disclosed for reducing the heating of a particulate filter 15, eg a DPF, during a regeneration event when the engine 10, eg a diesel engine of a mild hybrid vehicle, is decelerating due to an accelerator pedal tip-out (deceleration fuel cut-off event). The method comprises using an electric machine 16, eg an integrated starter / generator, to apply a load to the engine 10 by charging the battery 17, and compensating for the increase in applied load by increasing an engine torque demand thereby requiring fuel to be supplied to the engine 10. The fuel flow reduces the concentration of oxygen in the exhaust gas thereby reducing the intensity of soot combustion within the particulate filter 15 and reducing the peak temperature within the particulate filter 15 during the regeneration event.

A water mixer, which can mix water in double directions and adjust the proportion of the mixed water in the process of heating, relates to a water mixer. The invention has the target of solving the problem of that: when an equalizer tank is installed in a heating net system, the interface is also fixed which can not be readjusted, and the proportion of the mixed water can not be changed, which is to say that the supply water temperature can not be adjusted in the process of running of the equalizer tank. An upper guide plate is arranged on the upper side of the cavity of a tube body. A lower guide plate is arranged on the lower side of the cavity of the tube body. An upper shaft is connected between the upper guide plate and the tube wall of the tube body. A lower shaft is connected between the lower guide plate and the tube wall of the tube body. The invention has the benefits that the water mixer can separately adjust the intake port water temperature of each building, which not only can satisfy the heating demands of various users, but also can reduce the overheat phenomena caused by improper regulating of the heat source, and the phenomenon of uneven cold and heat caused by different heating system design parameters between the different buildings in the same district. The invention has good water mixing effect, and can achieve a plurality of adjusting means of the heating net.

The invention discloses an automobile solar cooling system which comprises a solar cell panel, a storage battery and a temperature detection unit. The solar cell panel is arranged on the top of an automobile, consistent with the top of the automobile in radian and attached to the top of the automobile. The storage battery receives electric energy converted through the solar cell panel and stores the electric energy. The temperature detection unit is arranged in the automobile and is controlled by a processor to be turned on and off. The storage battery provides power for the processor; the processor controls an air exhaust device in the automobile to blow air for cooling or a window glass lifter of the automobile to open a window according to the detection value of the temperature detection unit. The automobile solar cooling system can utilize solar energy to adjust the temperature in the automobile to prevent the interior temperature from being too high, safety of children and the old can be protected when the automobile is parked, and discomfort caused by too high temperature when the automobile is just driven can be relieved.

The invention discloses a marine high-strength steel plate double-wire submerged-arc welding process. An EH47 high-strength anti-cracking steel plate is selected, the thickness of the EH47 high-strength anti-cracking steel plate is 50-100 mm, a double-wire submerged-arc welding process with a front wire as a fine welding wire and a rear wire as a thick welding wire is adopted, and high-efficiencywelding of low heat input is realized. According to the marine high-strength steel plate double-wire submerged-arc welding process, the design requirements of the EH47 high-strength anti-crack steel plate welding joint high standard are met while the high efficiency of the double-wire submerged arc welding is guaranteed, so that the optimization of the welding quality and the efficiency is realized. The marine high-strength steel plate double-wire submerged-arc welding process is high in practicability, simple and convenient in welding operation, efficient and energy-saving, and is suitable for building and popularization and application of container ships.

The invention discloses a lever-valve needle single nozzle which comprises a feed nozzle cap and a side cylinder support body, wherein a feed opening is formed in the center of the feed nozzle cap; the side cylinder support body is connected to the lower end of the feed nozzle cap; the feed opening of the side cylinder support body corresponds to the feed passage of the side cylinder support body; a switching-over body is arranged at the lower end of the side cylinder support body; the feed passage is arranged in the middle of the switching-over body longitudinally, and is inclined; heaters are clung to the outer sides of the side cylinder support body and the switching-over body; the upper end of the switching-over body is communicated with the feed passage of the side cylinder support body; the lower end of the switching-over body is communicated with the central hole of a spray nozzle main body. The lever-valve needle single nozzle has the advantages that the structure is simple; the production cost is low; meanwhile, a cylinder body is far away from thermal source of a hot runner, so as to efficiently reduce the overheating phenomenon at the periphery of a seal ring, prolong the service life of the seal ring, and further prolong the service life of the cylinder; moreover, the mobile strength of a valve needle is effectively enhanced through a lever, so that the high injection pressure requirement of production activity is met effectively.

The invention relates to a water turbine sleeve casting mould assembling box, comprising a sand box. Sand moulds are uniformly arranged in the sand box; a casting part is arranged in the sand box; the upper end of the casting part is provided with an annular casting head; an air outlet hole is arranged between the casting head and the upper end of the sand box; a sand core penetrates through the air outlet hole, the casting head and the casting part; the upper end of the sand core is arranged at the outside of the sand box; the lower end of the sand core passes through the casting part and is arranged in the sand box; a core tube is arranged in the sand core; the lower end of the sand core is provided with a horizontally placed side gate; a first flow gate is arranged between the side gate and the lower end of the casting part; one end of the side gate is provided with a vertically placed sprue gate; the upper end of the sprue gate is connected with a pouring cup penetrating through the sand box; the upper end of the pouring cup is arranged outside the sand box; and a plurality of second flow gates placed obliquely are arranged between the outer wall of the casting part and the sprue gate. The water turbine sleeve casting mould assembling box has the advantages of reasonable structure and convenience for modeling, and guarantees an internal circle machining face of a sleeve without casting flaw.

The invention belongs to the technical field of composite material forming. Combination is conducted in the manner of directly and alternately laying high-performance thermoplastic resin thin films orpowder and carbon fiber textiles, electrodes are placed on preset electrode areas at the two ends of each carbon fiber textile, the carbon fiber textiles are directly powered on and heated through the power-on heating characteristic of resistance of the carbon fiber textiles themselves, and rapid processing and forming of the high-performance thermoplastic composite material are achieved. A novelprocessing way is provided for forming and processing of the carbon fiber reinforced high-performance thermoplastic composite material, preparation working procedures of the composite material are reduced, the forming heating time is short, efficiency is high, and the energy consumption is low. The method is suitable for preparation of the thermoplastic resin based composite material and is particularly suitable for preparation of the composite material with high-melting-point thermoplastic resin as the substrate.

The invention discloses a novel phase-change heat-storage radiant floor heating device for the tail end of an air source heat pump. The phase-change heat-storage radiant floor heating device for the tail end of the air source heat pump comprises a heat supply pipeline and a heating ground surface. The heat supply pipeline comprises a heat supply main pipe and a heat regenerative main pipe, and multiple heat supply branch pipes are connected between the heat supply main pipe and the heat regenerative main pipe through a distributor; the heating ground surface comprises a damp-proof layer, a heat insulating base layer, an aluminum foil layer and a composite floor layer which are arranged on a floor slab layer from bottom to top in a laid manner; the heat insulating base layer is formed by heat insulating materials and precasted phase-change heat-storage material modules which are mutually connected; the heat supply branch pipes are laid in porous channels of the phase-change heat-storage material modules, and the precasted phase-change heat-storage material modules and the heat supply branch pipes in the porous channels are all located in an aluminum shell in a surrounded manner; and the penetrating portions of the aluminum shell and the heat supply branch pipes and the two ends of the aluminum shell are each provided with a sealing ring. According to the phase-change heat-storage radiant floor heating device for the tail end of the air source heat pump, construction and maintenance are convenient, heat supply is even, and in the defrosting process, it is guaranteed that indoor heat enables a user to feel comfortable, the heat supply efficiency is high, and the energy-saving effect is good.

The invention provides an overheating early-warning protection device for a computer host, belongs to the technical field of computer host overheating protection. The device comprises a case body, a movable column and a driving air bag, the movable column is sequentially sleeved with a driving ring, a magnetic part, an elastic reset part and a fixing part, an electromagnet corresponding to the magnetic part is arranged in the case body, and an adjusting connecting component is serially connected onto a circuit of the electromagnet. The invention discloses a computer host overheating early warning protection device. The movable warning piece is driven by the driving air bag through the magnetic piece corresponding to the electromagnet; therefore, a computer overheating warning signal can becontinuously and effectively sent to people; people can take corresponding treatment measures to guarantee normal movement of a computer, meanwhile, corresponding heat dissipation and cooling treatment can be carried out in the case body, the situation that normal operation of the computer is affected by overheating is further reduced, and the computer can be automatically powered off when neededso as to prevent internal elements of the computer from being damaged due to the too high temperature.

The invention is suitable for the technical field of intelligent household appliances and provides a control method of a disinfection lamp and a dish washing machine, the control method comprises thefollowing steps: turning on the disinfection lamp in the dish washing machine within a preset starting period if the disinfection starting condition is detected to be met, implementing the disinfection operation through the disinfection lamp; turning off the disinfection lamp and finishing the disinfection operation in the N starting period if the temperature in the dish washing machine is higherthan a preset first temperature threshold, wherein the N starting period is specifically the current starting period of the dish washing machine, and N is an integer; and turning on the disinfection lamp in the dish washing machine again if reaching the N+1 starting period. The disinfection lamp is periodically turned on, the too high temperature of the surface of a tableware in the dish washing machine is further avoided while the requirement of the disinfection temperature is met, and the disinfection operation in the starting period is stopped immediately when the temperature is detected toexceed the preset first temperature threshold, and the occurrence of the condition of the too high temperature is further reduced.