61results about How to "Avoid heat stress" patented technology

The invention provides an ultrafast laser welding method and device for large-spacing heterogeneous materials. The ultrafast laser welding method specifically comprises the steps that a lower workpiece and an upper workpiece are stacked and clamped through a clamp; a laser beam is collimated, then enters a scanning galvanometer and is focused through a field lens after being emitted, first scanning laser energy is absorbed by a lower-layer material to generate plasma, the plasma continuously expands and overflows, meanwhile, the lower-layer material is melted to fill a gap, and the quasi-optical contact condition is achieved; free expansion of plasmas in second scanning is effectively inhibited, laser energy is limited near a welding seam, the melting volume of the area is remarkably increased, and the welding strength is remarkably improved; and the third scanning and the second scanning are consistent in mechanism, the material melting amount is increased, and finally welding head strengthening is achieved. Through the scanning galvanometer and the field lens, a focusing light spot moves along a specified route in the contact surface of the upper and lower workpieces, so that the workpieces are melted and combined. After three times of scanning, the large-spacing heterogeneous material can finally obtain a high-strength and high-quality welding joint.

The invention discloses a laser welding machine, and relates to the technical field of laser welding, the laser welding machine comprises a working table, the upper surface of the working table is symmetrically provided with limiting chutes I, the top of the working table is provided with a steel pipe I, a steel pipe II and a positioning mechanism, and the positioning mechanism is arranged on the top of the working table. A driving mechanism is arranged at the top of the workbench, a buffering mechanism is arranged at the top of the workbench, a first roller and a second roller clamp and abut against the outer wall of a first steel pipe through a positioning mechanism, and the center of the first steel pipe and the center of a second steel pipe can be located on the same horizontal plane all the time; and then the first steel pipe and the second steel pipe are driven by the driving mechanism to get close to each other, the first roller and the second roller are made to rotate, the joint of the first steel pipe and the joint of the second steel pipe are completely attached, the problem that a weld joint is too large or too small is solved, and then the welding quality after the weld joint is welded is improved.

The utility model discloses a preheating system for low-temperature starting of a diesel automobile. The preheating system comprises a sensing module, a preheating module and a control module, wherein the sensing modules are fixedly arranged inside and / or outside a diesel automobile body respectively; the preheating modules are respectively and fixedly arranged near and / or inside a diesel automobile cooling system, an intake manifold and a gearbox; the control module is fixedly arranged in a vehicle-mounted electronic system of the diesel automobile; the control module is used for receiving input signals such as temperature and pressure obtained by the sensing module, automatically controlling the preheating module to preheat intake air, an engine cylinder body and a gearbox of the diesel automobile, and automatically adjusting the preheating time and strength, so that the low-temperature starting performance is effectively improved, and meanwhile, the low-temperature starting performance of the diesel automobile is improved. Waste of fuel oil and electric quantity of a storage battery caused by excessive preheating is avoided, in addition, it is ensured that lubricating oil reaches proper viscosity before starting, mechanical abrasion at the moment of starting is reduced, and safe and rapid starting is achieved.

The invention discloses a multi-spectral-band compatible stealth coating based on a high-entropy alloy and a preparation method of the multi-spectral-band compatible stealth coating, and belongs to the technical field of functional high-entropy alloy coatings and preparation of the functional high-entropy alloy coatings. The problem that the visible light and infrared stealth effect of an existing stealth coating in a wide spectrum range is poor is solved. According to the preparation method, the high-entropy alloy film is prepared through the magnetron sputtering technology, efficient customization of material components and structures is achieved through scientific screening and optimal combination of elements and regulation and control of magnetron sputtering parameters, and therefore the high-entropy alloy film which is uniform, compact and excellent in performance is obtained. Test results show that the visible light band absorptivity of the high-entropy alloy coating is about 0.95, the infrared band emissivity of the high-entropy alloy coating is about 0.05, and multi-spectrum-band compatible stealth in the visible light and infrared spectrum range is achieved.

The invention relates to a non-polar thermoplastic plate with a polar surface coating as well as a preparation method and application of the non-polar thermoplastic plate, and belongs to the technical field of automobile coatings. The problems that in the prior art, in the process of attaching a paint film to the surface of a non-polar thermoplastic plate, a base material is prone to thermal stress or deformation, the paint film is uneven in attachment and prone to falling off or peeling off, cost is high, process time is long, and industrialization is difficult to achieve are solved. According to the method, low-cost polyphenol and amine substances are used for spraying codeposition, and a particle coating with a certain thickness and roughness is formed on the surface of the non-polar thermoplastic plate by regulating and controlling the condition parameters of the spraying process, so that the adhesion capacity of the surface of a matrix is enhanced; the introduced active groups increase the surface polarity of the matrix and enhance the interface bonding between the matrix and the paint film; the particle coating is prepared at normal temperature, so that thermal stress or deformation caused by heating of a matrix is avoided; and by adopting the processes of adding a strong oxidant and spraying and codepositing, the modification time is greatly shortened, the working efficiency is improved, and the industrial production of the modified non-polar thermoplastic plate is promoted.

The invention discloses a high heat dissipation type direct current permanent magnet synchronous servo motor and a using method, and relates to the technical field of motors, the high heat dissipation type direct current permanent magnet synchronous servo motor comprises a center shaft and a stator, a rotor is arranged in the middle of the outer surface of the center shaft, the stator sleeves the rotor, and a sealing cover is arranged on one side of the outer surface of the center shaft. As the temperature of the electric brush assembly rises, the thermal expansion coefficient of the material can cause slight deformation or position adjustment of the electric brush, and the change can help maintain good contact pressure between the electric brush and the commutation copper sheet, so that contact resistance increase caused by temperature rise is reduced; graphite powder generated by abrasion of an electric brush can form a layer of conductive film on the surface of the commutation copper sheet, although the graphite is a conductor, if the graphite is not uniformly distributed, poor local contact is caused, and proper temperature control and design can ensure that the graphite layer is more uniformly distributed on the commutation copper sheet, and on the contrary, the electric contact quality can be improved.

The invention relates to the technical field of industrial manufacturing, and discloses an efficient cooling and shaping system for core rod production and processing, comprising: a core rod cooling path design module for designing a multi-channel cooling path inside a core rod and an external spray cooling path; the temperature sensing and monitoring module is used for collecting temperature data inside and on the surface of the core rod in real time; the intelligent control module is used for dynamically generating cooling parameters based on the target temperature and the current temperature of the core rod; and the cooling execution and feedback module is used for adjusting the flow rate of the cooling liquid, the spraying pressure and the spraying direction according to the cooling parameters generated by the intelligent control module. By optimizing an internal cooling path and an external spray cooling design of the core rod, efficient and uniform cooling is realized so as to shorten the shaping time; the precise temperature control and partition cooling technology is combined, thermal stress and deformation are effectively reduced, and the machining precision is improved; and meanwhile, the operation cost is reduced through dynamic energy consumption optimization and cooling liquid circulation, and the green and energy-saving targets are achieved.

The invention belongs to the technical field of battery box body welding, and discloses a water-cooling battery box body applying an FSW welding technology, the water-cooling battery box body comprises an aluminum alloy box body, the aluminum alloy box body comprises an upper shell, a lower shell, a fixed side skirt and a predetermined welding groove, the upper shell and the lower shell are symmetrically arranged up and down, and the upper shell and the lower shell are symmetrically arranged up and down; a fixed side skirt is integrally formed on the outer side faces of the ends, close to each other, of the upper shell and the lower shell. According to the method, the battery box is fixed through the clamp made of steel, the bolts and the positioning pins, displacement in the welding process is effectively prevented, the welding precision and stability are guaranteed, meanwhile, fine adjustment is conducted on welding parameter setting, including the rotating speed of a welding tool, the feeding speed, the diameter of the tool, the shoulder width of the tool and the like, and welding quality is improved. Therefore, the uniformity of the welding process and the quality of a welded joint are ensured. In the welding process, preheating treatment and reasonable welding sequence and welding position planning are adopted, and the welding efficiency and the joint quality are further improved.

The invention provides a preparation method of a chopped carbon fiber reinforced ceramic-based crucible material, and relates to the technical field of chopped carbon fiber reinforced ceramic-based crucible materials.The preparation method comprises the following steps that S1, chopped carbon fibers and ceramic matrix powder are subjected to dry mixing according to a preset proportion, and the chopped carbon fibers are preliminarily and evenly distributed in the ceramic matrix powder; s2, the carbon fibers obtained after dry mixing and ceramic matrix powder are mixed through a wet method, ball milling or homogenizing treatment is carried out in a liquid medium, the carbon fibers and the ceramic matrix powder are fully dispersed, and mixed slurry is obtained.According to the preparation method, oxidation treatment or acid pickling treatment or a metal coating technology is carried out on the surfaces of the short carbon fibers; according to the invention, the carbon fibers are added into the ceramic matrix, so that the interface bonding force between the carbon fibers and the ceramic matrix is obviously improved, the carbon fibers are uniformly dispersed in the ceramic matrix, the agglomeration problem of the carbon fibers is avoided, and the mechanical properties, including compressive strength, bending strength and thermal shock resistance, of the material are enhanced.

The invention relates to a titanium-based enamel coating resistant to cold and hot impact and suitable for low-temperature firing and a preparation method thereof.The titanium-based enamel coating comprises enamel frits and grinding additives, and the grinding additives comprise titanium powder, aluminum silicate fibers, sodium nitrite, clay and water; the preparation method comprises the following steps: firstly preparing the enamel frit, then mixing the enamel frit with a grinding additive to obtain enamel glaze slip, then pretreating the titanium substrate to remove surface dirt, then carrying out wet spraying on the enamel glaze slip on the surface of the pretreated titanium substrate, and finally, sequentially drying and sintering the titanium substrate sprayed with the enamel glaze slip to obtain the titanium-based composite material. The titanium-based enamel coating is prepared. The titanium-based enamel coating resistant to cold and hot impact and suitable for low-temperature firing can bear 700 DEG C water cooling circulation for 22-26 times without ceramic cracking or falling off, and has excellent cold and hot impact resistance; during preparation, the preparation process is simple, and the firing temperature is 835-845 DEG C and is reduced by more than 60 DEG C compared with the prior art.

The invention relates to the technical field of heat sealing, and discloses a plastic packaging bag heat sealing device and a method thereof.The plastic packaging bag heat sealing device comprises a base and a groove formed in the base, and a heating roller set used for guiding a plastic packaging bag is installed at the front end of the top of the base; a positioning assembly used for driving a plastic packaging bag to move is arranged at the top of the base, a heat sealing mechanism is installed on the base at the front end of the positioning assembly, and a cooling mechanism is installed on the base at the tail end of the positioning assembly. The positioning assembly can drive the plastic packaging bag to be repeatedly transferred between the heat sealing mechanism and the cooling mechanism, so that a certain position of the plastic packaging bag can be subjected to heat sealing for multiple times, cooling is conducted through the cooling mechanism after heat sealing each time, then heat sealing of the next time is conducted, and the sealing firmness of the plastic packaging bag is effectively improved through multiple heat sealing operations; and meanwhile, displacement of the plastic packaging bag at the sealing position in the moving process is prevented.

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, an air circulating pipeline and a water pipeline, the air circulating pipeline and the water pipeline are arranged in the artificial chamber, and an air inlet and an air outlet at two ends of the air circulating pipeline are oppositely arranged along two sides of the artificial chamber respectively. An axial flow fan is arranged in an air inlet of the air circulating pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of the warm water tank and an in-plant circulating cooling water inlet, the water outlet pipeline is communicated with a water inlet of the cold water tank and an in-plant circulating cooling water return port, and a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline. The spiral heat exchange pipe is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, adjusting the temperature of the air in the artificial chamber during inflation energy storage and deflation energy release, guaranteeing the structural safety of surrounding rock around the artificial chamber and prolonging the service life of sealing materials in the chamber.

The invention relates to the technical field of metal plastic forming, and provides a thin-wall deep barrel forming die with local protrusions, the thin-wall deep barrel forming die comprises a fixing plate, a die body, a cleaning assembly and a measuring assembly, the die body comprises an upper die set and a lower die set, and the lower die set comprises a lower die plate fixedly connected to the top of the fixing plate through bolts; a lower die mounting block is fixedly connected to the top of the lower die plate, a lower die positioning block is fixedly connected to the top of the lower die mounting block, a backing ring is fixedly connected to the top of the lower die positioning block, and a blank and the lower die are preheated through the heating device, so that thermal stress generated by sudden temperature change in the forming process is avoided; the product quality is improved, the service life of the die is prolonged, meanwhile, the cooling speed after the blank is put into the die is reduced, and it is ensured that the blank keeps stable in the forming process.

The invention discloses a packaging heat dissipation structure for a high-power-density device, and relates to the technical field of electronic equipment heat dissipation, the packaging heat dissipation structure comprises a packaging shell connected with the high-power-density device, the packaging shell is provided with a micro-channel for circulation of a cooling working medium, and the micro-channel corresponds to the high-power-density device. After the micro-channel is combined with the packaging structure of the high-power-density device, the interval between the high-power-density device and the micro-channel is reduced, the thermal resistance of the high-power-density device is reduced, the packaging structure does not affect the design of an electronic layer of the high-power-density device, and the practicability is high; the equivalent size of the micro-channel is gradually reduced, the specific surface area of the micro-channel is increased, the pressure drop is reduced, the heat exchange performance is enhanced, the temperature uniformity of the surface of a high-power-density device is further improved, and the situation that the packaging reliability is reduced due to thermal stress generated by a large temperature gradient is avoided. The technical problem that stable operation of a high-power-density device is affected due to the fact that an existing heat dissipation structure has a large temperature gradient is solved.

The present invention is applicable to the technical field of heat exchangers, and provides a high-flux heat exchanger for fluid separation, including a mounting plate, a heat exchange tube assembly, a joint control module, a speed regulating module, a rotating seat, a fixing frame, a mounting seat A, a rotating module, a rotating, heat exchange cylinder, a water inlet pipe, a water outlet pipe and a mounting seat B. The heat exchange tube assembly includes a connecting pipe and a heat exchange tube, and also includes: a joint control module, the joint control module includes a linkage unit, a regulating unit and a fixing plate, the regulating unit is circumferentially distributed on the fixing plate, one end of the regulating unit is connected to the linkage unit, and the linkage unit is connected to the speed regulating module through the joint control module. In a high-flux heat exchanger for fluid separation in the present invention, the rotating module drives the heat exchange tube to rotate in the heat exchange cylinder by cooperating with the mounting seat A, the rotating shaft, the rotating seat and the joint control module, so that it can be more evenly contacted with the cold water in the heat exchange cylinder, so that the heat is more evenly distributed, avoiding the problem of local overheating or overcooling.

This application provides a pipe connection structure and frame. The pipe connection structure includes a first pipe, a second pipe, and a connector. The first pipe defines a first flow path and at least one first mounting hole; the second pipe defines a second flow path and at least one second mounting hole; the connector passes through the first and second mounting holes sequentially, and the connector defines a hollow channel that communicates with the first and second flow paths respectively. By using a connector that passes through the first and second mounting holes sequentially to connect the first and second pipes, thermal stress caused by thermal expansion and contraction at the weld joint of the first and second pipes can be avoided. This ensures that the connection between the first and second pipes remains structurally stable even under high-temperature operating environments, extending the service life of the pipe connection structure.

The invention provides a composite board printing and coating device, and relates to the field of mobile phone rear cover coating, the composite board printing and coating device comprises a machine body, an evacuation mechanism arranged in the machine body, a cleaning mechanism arranged in the machine body, and an ejection mechanism arranged in the machine body; the vacuumizing mechanism comprises a vacuum cavity formed in the machine body, a driving assembly arranged in the machine body and a sealing assembly arranged in the machine body. According to the mobile phone back plate electroplating device, through the arrangement of the vacuumizing mechanism and the ejection mechanism, electroplating machining of a mobile phone back plate in a vacuum environment is achieved, automatic discharging is achieved, and workers can take out the mobile phone back plate conveniently; through the arrangement of the cleaning mechanism, the situation that impurities and harmful gas are generated when the mobile phone back plate is processed in the prior art is solved; by means of the evacuating mechanism, the problem that in the prior art, due to thermal stress caused by temperature changes, a mobile phone backboard film layer can be peeled off or a substrate material can be deformed is solved.

The utility model discloses a temperature control device for a high-temperature pump, the temperature control device for the high-temperature pump is arranged between a pump body of the high-temperature pump and a motor, the temperature control device comprises a device main body, an axial spiral flow channel and a labyrinth flow channel, the upper end of the device main body is connected with a shell of the pump body, and the lower end of the device main body is connected with a shell of the motor; the axial spiral flow channel is arranged so that circulating heat dissipation can be achieved through flowing of a high-temperature working medium; and the labyrinth runner is used for prolonging a cooling path and increasing a turbulence effect so as to improve the heat exchange efficiency.

The utility model discloses a flame cutting positioning device which comprises a conveying platform, a flame cutting machine frame and a positioning mechanism, the flame cutting machine frame is erected on the conveying platform, the positioning mechanism comprises a vacuum pump assembly and an air cylinder, one end of an air cylinder push rod is connected with a breather pipe, and the other end of the air cylinder push rod is connected with a motor. One end of the breather pipe is connected with the vacuum pump assembly through a first air pipe, the other end of the breather pipe is connected with a second air pipe, and one end of the second air pipe is connected with two groups of adsorption pipes; the two sets of adsorption pipes of the positioning mechanism are adsorbed and fixed to the two sides of the to-be-cut position of the plate, the plate is limited, thermal stress generated in the cutting process is overcome, therefore, the buckling deformation phenomenon of the plate in the flame cutting process is avoided, and the flame cutting quality is improved; and the two sets of adsorption pipes are used for conducting negative pressure adsorption and fixing on the plate, so that the stability of the plate is improved, displacement of the plate in the flame cutting process is avoided, and the flame cutting quality is further improved.

The utility model provides a movable adjustable ventilation cowshed, including shed roof, gable and cattle pen, the shed roof includes upper shed roof and lower shed roof, both adopt staggered layer formula arrangement, the lower shed roof bottom fixedly set up a plurality of motor, motor output shaft rigid connection screw rod, the upper shed roof and lower shed roof open a plurality of screw holes with screw rod constitute screw thread transmission pair, rotate through motor drive screw rod, drive the upper shed roof under the lower shed roof slide, realize the opening and closing adjustment of shed roof, the cattle pen outside sets up a plurality of electric lifting curtain sheltering cattle pen side, and the electric lifting curtain lifting cooperation shed roof opening and closing control the temperature and ventilation in the shed, the utility model has the advantages of: through electric lifting curtain with open and close shed roof has realized the linkage control. When needing to strengthen ventilation, can open part shed roof and lift the side curtain simultaneously, forms efficient air convection passage, and when needing to keep warm, then close the shed roof and descend the side curtain, form a closed warm space.

The utility model discloses a kiln safety device which comprises a kiln cabinet and a lifting table and further comprises rotating shafts, supporting discs and a protective cover, the lifting table is rotationally connected with the multiple rotating shafts, the rotating shafts are connected with driving assemblies for driving the rotating shafts to rotate, the multiple supporting discs are evenly and fixedly arranged in the axial direction of the rotating shafts, and each supporting disc is provided with multiple through holes; a plurality of protective covers are arranged in the furnace cabinet and used for containing the supporting discs. The structure that the supporting disc is arranged on the rotating shaft is adopted, the rotating shaft is driven to rotate to drive the workpiece to rotate, the workpiece is rotated so that the kiln can be heated more evenly, the heat transfer efficiency can be improved, the problem of uneven temperature or thermal stress can be avoided, meanwhile, the heating time can be shortened, the production efficiency can be improved, and the requirements for large-scale production and rapid machining are met.

The invention relates to the technical field of coal analysis and assay, and discloses a high-temperature sample rapid cooler which comprises a box body, at least one placing notch for placing a cylindrical cupel is formed in the surface of the box body, and a water inlet pipe is fixedly connected to one side of the box body. Through the non-contact cooling of the operation assembly and the placing notch, the rotation of the cupel ensures that the whole circumferential surface of the cupel can perform sufficient and uniform heat exchange with the low temperature conducted by the placing notch, so that the thermal stress generated by local shock cooling is effectively avoided, and further, due to the action of gravity, the heat transfer efficiency is improved. The high-density impurities such as unburnt gangue particles in the cupel can naturally settle and always gather at the bottom of the cupel, namely the position closest to the high-thermal-conductivity placing notch, so that the part which has the maximum thermal resistance and needs more cooling energy is just located in the optimal heat exchange area, and the cupel is suitable for underground laboratory places with extremely high anti-explosion requirements.

The present invention discloses a MEMS inertial sensor chip module and a preparation method thereof. The MEMS inertial sensor chip module of the present invention comprises a housing, wherein the housing is respectively fixed with a PCB board and a metal support column, wherein a MEMS inertial sensor chip assembly is supported on the metal support column, and the connection terminals on the MEMS inertial sensor chip assembly are mutually connected with the connection terminals on the PCB board through metal wires. The present invention does not require a primary packaging process, greatly reduces the packaging and integration costs, reduces the integration volume, avoids the thermal stress involved in surface mounting, can also achieve rapid heat conduction, can maintain various performance indicators of the MEMS inertial sensor chip level, can improve the application restrictions of the prior art on the MEMS inertial sensor chip, and avoids the influence of the primary packaging or secondary packaging thermal stress on the system integration application.

The invention relates to the technical field of high-performance functional ceramic manufacturing, and discloses an acid-resistant special ceramic and a preparation method thereof.The preparation method comprises the following steps that S1, white mud, aluminum oxide, potassium oxide, calcium oxide, sodium oxide, magnesium oxide, zirconium oxide, boric acid, silicon carbide and an adhesive are weighed according to the proportion; s2, putting the weighed raw materials into a ball mill, and fully mixing; s3, in the mixing process, homogenizing equipment or process is used for improving the mixing uniformity. By accurately controlling the sintering temperature and time, it is ensured that a green body is fully densified in the sintering process, the problems of cracks and deformation are avoided, the quality and performance of a product are guaranteed, the compact structure and uniform microstructure of the ceramic are ensured through the efficient sintering technology, the ceramic is endowed with excellent mechanical strength and acid resistance, and the service life of the ceramic is prolonged. The control of natural cooling can effectively avoid thermal stress caused by rapid cooling, and the overall performance and stability of the ceramic product are further improved.

The invention discloses a ring main unit control device and a control method thereof, and belongs to the field of power ring main units, the ring main unit control device comprises a microenvironment controller, the microenvironment controller comprises an air sampling cabinet, the air sampling cabinet is located on the outer side of a ring main unit, and a dust particle counter is installed at the top of the air sampling cabinet; a sample inlet of the dust particle counter is communicated with the interior of the air sampling cabinet, an air inlet of the air sampling cabinet is communicated with a first fan, the air sampling cabinet is provided with two air outlets, and the two air outlets of the air sampling cabinet are respectively communicated with a second fan and a third fan; an air filter is mounted between the second fan and the air outlet of the air sampling cabinet correspondingly communicated with the second fan; an exhaust pipe is arranged on the side wall of the ring main unit; the microenvironment controller further comprises an external environment temperature sensor, an internal environment temperature sensor and an intelligent control module. The problem that thermal stress is generated among parts in the ring main unit due to the fact that the temperature difference inside and outside the ring main unit is obvious is solved.

The utility model discloses a circulating fluidized bed boiler coal dropping device, and relates to the field of boiler coal dropping devices, the bottom of a nut head is fixed with a screw, the bottom of the screw is provided with a screw cylinder, the bottom of the screw cylinder is fixed with a fixed plate, the outer side of the screw cylinder is provided with an asbestos ring, the outer side of the asbestos ring is provided with a cylinder, and the cylinder is provided with a screw rod. A sliding groove is formed in the inner wall of the cylinder, a first sliding block is fixed to the outer side of the screw cylinder, the first sliding block is slidably connected to the interior of the sliding groove, a sliding column is slidably connected to the middle of the interior of the nut head, a second sliding block is fixed to the outer side of the sliding column, and the sliding column penetrates through the interior of the screw rod; the fixing plate is driven to move upwards through the arranged screw cylinder, the fixing plate abuts against the bottom of the first fixing ring so as to be fixed, and through the arranged cylinder and the asbestos ring, the situation that the fastening force of the bolt and the screw hole is lost due to the high temperature influence is prevented.

The invention relates to a method for operating an air separation plant (100) having a distillation column system (110), a heat exchanger (1) and an adsorber (103), wherein a first operating mode is performed in a first time period and a second operating mode is performed in a second time period following the first time period. Provision is made for a third operating mode to be performed in a third time period between the second time period and the first time period, wherein in the third operating mode, compressed air is at least partially freed of water and carbon dioxide in the adsorber (103) and at least partially cooled in the heat exchanger (1), an air product is extracted from the distillation column system (110) and at least partially heated in the heat exchanger (1), and a settable portion of the compressed air cooled in the heat exchanger (1) or a settable amount of the further compressed air at least partially freed of water and carbon dioxide in the adsorber (103) but not cooled in the heat exchanger (1) is first fed to the air product and the air product is then heated in the heat exchanger (1). The subject matter of the invention also relates to a corresponding air separation plant (100).

The utility model discloses a device for solving large vibration of a drainage pipeline, which relates to the technical field of drainage pipelines and comprises a high-pressure heater, an electric door in front of an emergency drainage control valve, the emergency drainage control valve, a manual door behind the emergency drainage control valve, a drainage side bypass, a condensed water system and a heating pipe control valve. A drainage outlet of the high-pressure heater is connected with an electric door in front of an emergency drainage control valve, the downstream of the electric door in front of the emergency drainage control valve is provided with an emergency drainage control valve, and an outlet of the emergency drainage control valve is connected with a manual door behind the emergency drainage control valve; a drainage side bypass is further connected to a drainage outlet of the high-pressure heater, and the condensation water system is connected with a main pipeline corresponding to the high-pressure heater through the bypass. A warm pipe control valve is arranged between the emergency drain control valve front electric door and the emergency drain control valve rear manual door; the stability of the water conveying pipeline can be improved, and the dewatering efficiency is improved.

The invention discloses a method for prolonging the service cycle of a high-temperature section heat accumulator of a double-heat-accumulating type heating furnace, and belongs to the technical field of steel rolling heating furnaces. The size of the baffle brick is set to be 440 mm * 200 mm * 120 mm; the first heating temperature is set to be 1000-1050 DEG C, and the second heating temperature is set to be 1150-1200 DEG C; the temperature of a high-temperature section hearth is set to be 1250-1280 DEG C; the range of the exhaust gas temperature is controlled to be 120-160 DEG C; the gas pressure is controlled to be 8 kPa to 9 kPa; the problem of how to prolong the service life of the high-temperature section heat accumulator in the double-heat-accumulating type heating furnace is solved; the control method is improved in multiple aspects, the performance of the heating furnace is greatly improved, the service life of the heating furnace is greatly prolonged, loss of the heat accumulator is reduced, and therefore the service cycle of the heat accumulator in the high-temperature section is prolonged.

The invention provides a honeycomb rectification structure and device, a plasma light source and semiconductor equipment, the honeycomb rectification structure is applied to a laser-maintained plasma light source, the honeycomb rectification structure comprises a plurality of honeycomb units which are adjacently arranged, the honeycomb units form a channel structure used for allowing airflow to pass through, and the channel structure is used for allowing the airflow to pass through. The axial extension directions of the plurality of honeycomb units are parallel; and the heat exchange runners are arranged between the adjacent honeycomb units, allow heat exchange media to flow through and are used for absorbing heat of the honeycomb units. The honeycomb rectifying device comprises the honeycomb rectifying structure. And the heat exchange circulation system is connected with the heat exchange flow channel of the honeycomb rectification structure and used for driving the heat exchange medium to circularly pass through the heat exchange flow channel and discharging heat of the heat exchange medium.