17773 results about "Cold air" patented technology

The invention provides a machine room energy consumption optimization method and system based on temperature monitoring, and relates to the technical field of energy consumption optimization, and the method comprises the steps: collecting the temperature data of a machine room in real time, continuously monitoring the temperature gradient of each region, carrying out the fusion processing, and constructing a three-dimensional dynamic temperature distribution model; a hot spot area, an airflow dead angle and a cooling capacity waste area are identified through a deep learning algorithm, a flowing track and a mixing process of cold and hot air in a machine room are predicted through a track regression neural network in combination with machine room layout and equipment distribution, and a machine room temperature control strategy set is generated through adaptive neural fuzzy reasoning, correction and updating of a prediction result; and by taking minimum energy consumption and maximum refrigeration efficiency as optimization objectives and taking a safe operation temperature range of equipment in the machine room as a constraint condition, a plurality of parameters are jointly adjusted through a temperature control optimization algorithm to obtain an optimal temperature control curve, and the optimal temperature control curve is converted into a refrigeration system control instruction, so that collaborative optimization of the temperature and the energy consumption of the machine room is realized.

The invention provides a double-wall cooling structure. The double-wall cooling structure comprises an air film hole plate, an impingement hole plate and a plurality of narrow walls, a plurality of air film holes are formed in the air film hole plate, a plurality of impact holes are formed in the impact hole plate, and the impact hole plate and the air film hole plate are arranged at intervals to form a cooling channel; the narrow walls are arranged in the cooling channel at intervals in the first direction parallel to the flow direction of gas outside the gas film hole plate, the cooling channel is divided into a plurality of cold air cavities, and the gas film hole communicates with the impact hole through the cold air cavities; wherein in the orthographic projection in the thickness direction of the gas film pore plate, the projections of the gas inlet ends of the gas film pores and the projections of the gas outlet ends of the impact pores are arranged in a staggered manner.

The control method of the air conditioner comprises the steps that the operation mode of the air conditioner is obtained, and an air outlet instruction, sent by a user, of the air conditioner is obtained; and if the operation mode is the refrigeration mode and an air outlet instruction of the air conditioner sent by a user is not obtained, the multiple opening and closing doors are controlled to jointly close the front air outlet, and after the set time, the opening and closing door located at the lowest position is controlled to close the lower air outlet, so that the air conditioner blows cold air into a room from the lower air outlet firstly. After the time is set, the air conditioner blows the cold air into the room from the front air outlet, and the cold air is prevented from directly blowing people all the time.

The invention discloses a communication network power distribution cabinet convenient for heat dissipation, and relates to the technical field of power distribution cabinets, and the power distribution cabinet comprises a composite mechanism. According to the communication network power distribution cabinet convenient to dissipate heat, through the design of a composite mechanism, the box body shell is used for storing electronic components, after long-time operation, the temperature in the box body shell rises, hot gas rises, and then the hot gas flows to the processing mechanism from the circular groove, so that the heat dissipation effect is achieved, and the internal temperature of equipment is reduced; the ventilation mechanisms are arranged on the two sides of the box body shell, so that the convection effect is achieved, the cold air flowing effect is improved, the cold air is located at the low position with the high density, hot air is squeezed upwards after entering the box body shell, the discharging speed is increased, and the heat dissipation efficiency is improved. The box body shell is supported through the supporting assembly, so that the effect of reducing deformation of the box body is achieved, and internal electronic elements are protected.

The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a main body internally provided with an air duct, the air duct is provided with a front air outlet and a lower air outlet, the front air outlet is located in the front side wall of the main body, the lower air outlet is located in the front of the lower side wall of the main body, and the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction; the opening and closing doors are sequentially arranged in the vertical direction and arranged at the front air outlet in a swinging mode, the opening and closing doors are arranged to be capable of jointly closing the front air outlet, the opening and closing door located at the lowest position is arranged to be capable of closing the lower air outlet, and the lower air outlet is in an open state on the basis that the front air outlet is jointly closed by the opening and closing doors. The air conditioner is matched with an engineering panel so that hot air and cold air can be supplied to the lower portion, and hot air and cold air can also be supplied to the front portion; in addition, the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction, and therefore condensation caused by air backflow is not prone to occurring in the cold air discharging process of the lower air outlet.

The utility model relates to a gas stove provided with a gas control pot rack. A pot rack of an existing gas stove is only used for placing pots, and some additional rings are used as wind shields. According to an existing gas stove, flames are exposed in the atmosphere, much heat is lost due to the fact that the outer faces of the flames make contact with too much air, and the heat efficiency is reduced. The gas stove with the gas control pot rack comprises a gas stove body, a pot rack ring, a plurality of pot rack feet and a pot rack bottom. The pot rack ring is in a circular tube shape, the pot feet are evenly distributed on the pot rack ring, the pot rack bottom is a circular ring piece with an inner hole in the middle, the outer diameter of the pot rack bottom is the same as that of the pot rack ring, the pot rack bottom and the pot rack ring are connected together, and the pot rack bottom is arranged on a gas stove and sleeved outside a burner to control secondary air inflow and prevent excessive cold air from touching flames, so that heat efficiency is improved.

The invention relates to the field of laser processing, and particularly discloses a laser cladding efficient cooling device which comprises a bearing plate, supporting rings are symmetrically arranged on the bearing plate, rotating ring discs are connected to the supporting rings through bearings, and driving mechanisms used for driving the rotating ring discs to rotate are arranged on the supporting rings. A clamping assembly used for clamping a workpiece is arranged on the rotating ring disc. The bearing plate is provided with a laser output device used for machining a workpiece. A supporting plate is arranged on the rotating ring disc, and a sliding assembly is arranged on the supporting plate. By means of rotation of the device, when the periphery of a workpiece is machined, the cooling assembly continuously blows cold air and adjusts the output temperature of the laser output equipment, so that the temperature is always kept within the normal range, effective combination of a coating and the workpiece is facilitated, the quality of the workpiece is improved, and the machining efficiency is improved; rapid cooling of the coating and the workpiece is facilitated, and forming of a standard machined part is facilitated.

The invention discloses equipment and a method for preparing spray condensation microcapsules, and relates to the technical field of spray condensation microcapsule preparation, the equipment comprises a melting homogenizing kettle and a condensing tower, a spray head is arranged in the condensing tower, and a movable spray mechanism used for enabling the spray head to move circumferentially and swing back and forth at the same time is mounted on the condensing tower. Through the arrangement of the movable spraying mechanism, the spraying head can spray material liquid drops in the condensing tower in a back-and-forth swinging manner while moving circumferentially, so that the material liquid drops can be uniformly dispersed in a wider area and can be in contact with more cold air, local supercooling or superheating is avoided, and a more uniform cooling effect is obtained; meanwhile, through the matched arrangement of the spiral blades, cooling airflow can spirally flow and be uniformly distributed, the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, gas-liquid exchange is more sufficient, finally, it can be ensured that each material liquid drop can be sufficiently cooled, and the embedding efficiency and the quality of microcapsules are effectively improved.

The invention relates to the field of glass product processing, in particular to an automatic feeding and discharging device and process for a glass product press. The technical problem is that heat on the upper surface of a glass product is rapidly taken away by high-speed airflow, and the heat at the bottom of the glass product changes slowly, so that the glass product is easier to crack. Comprising a base, a first supporting column is fixedly connected to the base, the device further comprises a downward pressing mechanism and a clamping mechanism, the downward pressing mechanism is installed on the top of the first supporting column, the clamping mechanism is installed on the outer wall of the first supporting column, and a buffering mechanism is installed on the clamping mechanism. Cold air is driven by the first air blower and the second air blower to enter the first heat exchange channel and the second heat exchange channel respectively, the temperature of the glass product is reduced through heat exchange to shape the glass product, the top and the bottom of the glass product are simultaneously cooled, and the internal stress of the glass product is reduced. And fragmentation caused by overlarge internal stress during cooling and shaping of the glass product is prevented.

The invention relates to the technical field of integrated control devices, in particular to a fire engineering power system integrated control device which comprises a fixed bottom frame, an integrated control cabinet is fixedly connected to the top end of the fixed bottom frame, and an integrated control unit is fixedly connected to the interior of the integrated control cabinet. A cabinet door is rotationally connected to the outer wall of the integrated control cabinet body, a touch panel is connected to the outer wall of the cabinet door in an embedded mode, the touch panel is electrically connected with the integrated control unit, and air exhaust and dust removal mechanisms are arranged at the two ends of the integrated control cabinet body correspondingly. The air exhaust fan can be driven to exhaust hot air in the integrated control cabinet body to the outside for ventilation and heat dissipation, meanwhile, after the heat dissipation effect of the air exhaust fan is reduced and the temperature continuously rises, cold air is generated and cold air cooling is carried out in a saltpeter ice making mode, so that the temperature of the integrated control cabinet body is rapidly reduced, and stable work of the integrated control unit is guaranteed.

The invention relates to the technical field of line ice melting, in particular to a rapid alternating-current ice melting system for a current collection line. The system comprises an ice melting data acquisition module which is used for acquiring the temperature, humidity and wind speed of a current collection line at each acquisition moment, and obtaining a line temperature information sequence, a line humidity information sequence and a line wind speed information sequence; the ice melting preprocessing module is used for determining icing characteristic values at all collection moments; determining a cold air characteristic value of each acquisition moment based on the temperature and wind speed distribution condition of the adjacent acquisition moment of each acquisition moment; determining the cold air change intensity, the icing gain coefficient and the line icing significant value at each acquisition moment; and the alternating current ice melting module is used for carrying out ice coating monitoring on the current collection line according to the line ice coating significant values at all the collection moments and carrying out ice melting treatment on the current collection line. The invention aims to improve the ice melting treatment efficiency of the current collection line.

The invention relates to the technical field of intelligent early warning, and discloses a risk early warning method and system for low-temperature rain, snow and freezing meteorological disasters, and the method comprises the steps: collecting multi-source data, and constructing a heterogeneous graph; preprocessing the data to obtain a training and reasoning sample; a graph neural network is constructed on the heterogeneous graph, joint learning is carried out on node time sequence features and edge relations, and graph representation representing cold air invasion, rain and snow zone movement and risk propagation delay is obtained; outputting road surface temperature evolution, icing threshold arrival time and wire icing growth rate based on the physical guidance neural network; fusing the features obtained by the graph neural network and the features obtained by the physical guidance neural network, outputting an asset-level risk score and a confidence interval thereof, and obtaining a predicted arrival time; and establishing early warning according to the prediction result and the observation result. According to the invention, finer and more reliable grading risk early warning is provided, and the accuracy, interpretability and practicability of early warning are improved.

A refrigerator including a refrigerating compartment; a freezing compartment; an evaporator at a rear side of the freezing compartment; a communicating duct including a first flow path and a second flow path; a refrigerating compartment duct configured to receive cold air generated by the evaporator from the communicating duct and including a first internal flow path to guide cold air from the first flow path to a first refrigerating space of the refrigerating compartment, and a second internal flow path to guide cold air from the second flow path to a second refrigerating space of the refrigerating compartment; and a damper including a first damping cover configured to control a supply of cold air to the first internal flow path, and a second damping cover configured to control a supply of cold air to the second internal flow path.

The invention discloses a special cooling device for a computer GPU (Graphic Processing Unit) cluster server, which comprises a box body, a support frame, a circulating pipe, a cooling box, a first piston cylinder, a liquid outlet pipe, an injection pipe, a liquid inlet pipe, a heat dissipation mechanism, a cooling mechanism, a detection mechanism and an auxiliary mechanism, meanwhile, a filter plate can prevent dust in air from entering, a detection mechanism monitors the temperature in the box body in real time by utilizing the thermal expansion characteristic of alcohol, and a signal is transmitted to an external controller through a pressure sensor so that a worker can master the operation temperature state of the server in real time; the cooling mechanism automatically adjusts the flow speed and flow of cooling liquid according to temperature changes so as to meet the heat dissipation requirements of the server under different loads, the auxiliary mechanism conducts rolling sweeping on a filter plate through a cleaning roller, smooth air circulation is ensured, the efficient and intelligent cooling effect is achieved, and the service life of the server is prolonged. And the operation stability and the service life of the GPU cluster server are improved.

The invention provides an up-down air outlet air conditioner and a control method thereof. The up-down air outlet air conditioner comprises a shell, a first air inlet, a first air outlet, a second air inlet and a second air outlet. The indoor heat exchanger is arranged in the shell and divides the space in the shell into an upper space and a lower space; the first air duct is arranged in the upper space and communicates with the second upper air opening; the second air duct is arranged in the lower space and communicates with the first lower air opening; the first cross-flow fan blade is arranged in the first air duct; the second cross-flow fan blade is arranged in the second air duct; the first upper air opening and the first air channel can communicate with the second air channel, and the second air channel and the second lower air opening can communicate with the first air channel. According to the up-and-down air outlet air conditioner and the control method thereof, the requirements that cold air is not directly blown during refrigeration and hot air falls to the ground quickly during heating can be met, and too large noise cannot be generated.

The invention provides a fan coil control method and device, a medium, a fan coil and an air conditioning system. The control method of the fan coil comprises the steps that an indoor return air enthalpy value and a target enthalpy value are obtained; acquiring a required cold air ratio according to the indoor return air enthalpy value and the target enthalpy value; and the air supply amount of the fan coil is controlled according to the required cold air ratio and the refrigerant cold supply amount of the fan coil, so that the difference value between the real-time cold air ratio and the required cold air ratio of the fan coil is adjusted to be within the preset difference value range. By means of the technical scheme, the technical problem that in the prior art, a fan coil is poor in use comfort can be solved.

The invention relates to the technical field of lighting devices, in particular to an LED corn lamp with an embedded heat dissipation structure, the LED corn lamp comprises a lamp holder and a lamp shell, a plurality of lamp bodies which are circumferentially distributed at equal intervals are arranged on the outer wall of the lamp holder, each lamp body is formed by linearly arranging a plurality of lamp beads at equal intervals, a heat conduction frame is welded to the outer wall of the lamp shell, and the heat conduction frame is welded to the lamp shell. And a transparent cover is sleeved on the outer side area of the lamp shell, which is positioned on the heat conducting frame. According to the LED lamp, through the arranged first heat dissipation mechanism, after the temperature in the lamp rises, expansion liquid is heated to expand, a first piston drives a second piston to move upwards, and therefore external cold air is sucked into the lamp shell, and the heat dissipation effect is achieved; and the first transmission shaft drives the second transmission shaft to rotate, so that the gear drives the heat dissipation fan to rotate quickly, the effect of blowing air to the outer wall of the lamp shell for heat dissipation is achieved, and the situation that extra electric power is needed for driving heat dissipation is avoided.

The invention discloses a vortex air inner-cooling and inner-lubricating grinding wheel which comprises a hot shaft assembly, a rotating seat assembly, a rotating main shaft, a fan-shaped spray head, a grinding wheel mounting disc assembly and a grinding wheel disc. A hot shaft in the hot shaft assembly, the fan-shaped spray head and a grinding wheel installation disc in the grinding wheel installation disc assembly are sequentially connected with a rotating main shaft through threads, and the grinding wheel disc and the grinding wheel installation disc are fastened through bolts. During machining, compressed air is introduced into one side of the grinding wheel, high-speed airflow generates vortexes through an internal vortex pipeline structure, cold airflow and hot airflow are separated out, and the cold airflow is separated towards the grinding wheel disc side. And meanwhile, lubricating liquid is introduced into the other side of the grinding wheel, cold air and the lubricating liquid converge and enter a grinding wheel disc cavity through a fan-shaped spray head, and then flow out through a grinding wheel hole to cool and lubricate a grinding area. The grinding force and the grinding heat during grinding are effectively reduced, the production cost is reduced, the grinding quality is improved, and green machining is achieved.

The invention discloses detection equipment for a manganese zinc ferrite magnetic core, which comprises a detection table, a protection cover is fixedly mounted on the top wall of the detection table, a feeding and discharging assembly is mounted in the detection table, a specification detection assembly is mounted on the top wall of the detection table, and a pressure detection assembly is mounted on the right rear part of the top wall of the detection table. A magnetic core body is placed on the top wall of the feeding and discharging assembly. According to the detection equipment for the manganese zinc ferrite magnetic core, the test of the magnetic core body in a low-temperature state is taken as an example, and cold air is blown into the protection cover under the mutual cooperation of the fan and the outdoor unit, so that whether the specifications of the magnetic core bodies with different specifications meet the use requirements or not can be measured, and the inductive performance of the magnetic core bodies can be tested in the low-temperature state; two detection functions can be achieved for the magnetic core body, the overall performance and the product specification of the magnetic core body can be detected, and unqualified magnetic core bodies can be prevented from flowing into the subsequent use process.

The invention belongs to the technical field of flue gas treatment, and particularly relates to a flue gas desulfurization and denitrification integrated device and method for a blast furnace hot blast stove. An outlet of a heat exchanger is connected with a booster fan, a cold air mixing valve is connected between the heat exchanger and the booster fan, and an outlet of the booster fan is connected with an inlet flue of a semi-fixed bed adsorption tower; an outlet flue is arranged on the side wall of the semi-fixed bed adsorption tower, the outlet flue and the inlet flue are arranged on different sides of the semi-fixed bed adsorption tower, the reducing agent storage device is connected with the injection structure, the injection structure is inserted into the inlet flue wall of the semi-fixed bed adsorption tower through a pipeline, and the semi-fixed bed adsorption tower is connected with the bed intermittent operation control system. An outlet pipeline at the bottom of the semi-fixed bed adsorption tower is connected with a discharging chain, the discharging chain is connected with a discharging bin, a feeding opening in the top end of the semi-fixed bed adsorption tower is connected with a feeding chain, and the feeding chain is connected with a feeding bin. The device completes desulfurization and denitrification in the semi-fixed bed adsorption tower, no additional device is needed for denitrification, the occupied area is small, and the investment is low; by-products can be comprehensively utilized, and zero waste discharge is realized.

The invention provides an injection type low-temperature rain and snow environment icing wind tunnel simulation test device, and the device is characterized in that an open type main air duct is arranged in a thermal insulation maintenance structure, and the open type main air duct comprises an air duct regulation and control section, an air duct gradual contraction section, an air duct test section, an air duct transition section, an air duct injection section and an air duct diffusion section which are connected in sequence; an exhaust fan is arranged at an exhaust hole in the rear end of the heat-preservation maintenance structure; a temperature sensor and a cold air diffuser are arranged in the heat preservation maintenance structure, and the cold air diffuser is connected with an external refrigeration turbine; an atomizing nozzle is arranged in the air duct regulation and control section and is connected with a spraying system; an ejector is arranged in the air duct ejection section; a test piece is placed in the air duct test section; the refrigerating turbine and the ejector are respectively connected with the refrigerating unit; the cold source control valve, the injection main flow valve, the spraying system and the temperature sensor are all in signal connection with the measurement and control system. The simulation environment can be optimized and adjusted, and high efficiency and energy saving of a wind tunnel test system are achieved while ground low-temperature rain and snow environment simulation is met.

The invention discloses a rapid freezing device for abalone production and processing, and relates to the technical field of freezing, the rapid freezing device comprises an outer frame, a conveying assembly, a cooling assembly and a pre-cooling assembly, and rapid freezing of abalones is completed through cooperation of the conveying assembly, the cooling assembly and the pre-cooling assembly. Liquid nitrogen is sprayed to abalones conveyed on the conveying assembly through the annular cooling pipe and the nozzles so that the abalones can be quickly frozen through the liquid nitrogen, and the liquid nitrogen is stirred and disturbed through the cold air circulation mechanism so that it can be ensured that the liquid nitrogen makes full contact with the abalones in multiple directions and freezes the abalones; the tail end of the annular cooling pipe is communicated with the pre-cooling pipe through the arranged connecting pipe, so that residual liquid nitrogen in the annular cooling pipe is conveyed to the pre-cooling area, the pre-cooling pipe sprays the residual liquid nitrogen conveyed into the pre-cooling pipe from the air spraying groove to the abalones just entering the outer frame, and therefore the residual liquid nitrogen is used for pre-freezing the abalones; the freezing speed of the abalones is accelerated.

The invention provides a magnesium-aluminum alloy casting molding cooling device, which relates to the technical field of casting process equipment, and comprises a cooling pool, a mounting rack fixed on the top of the cooling pool, a chain conveying belt arranged on one side of the mounting rack, a plurality of clamping mechanisms arranged at the bottom of the chain conveying belt in a transmission manner, and a cold air mechanism arranged on the cooling pool, a water circulation frame is arranged on the side, away from the cold air mechanism, of the top of the cooling pond. When a limiting block slides to the end part of the inner wall of a concentric-square-shaped limiting frame, a second bevel gear is meshed and matched with a first bevel gear, a third bevel gear is meshed and matched with a fourth bevel gear, and a started chain conveying belt drives a filtering assembly to move towards one side of a low filtering plate along a threaded rod, so that the whole filtering assembly moves towards the other side of the cooling tank; the difficulty of cleaning metal scraps in the cooling pond is reduced, water impurities in the cooling pond can be concentrated in the filtering assembly, and power output in the impurity collecting process is reduced.

The invention discloses a multi-cooling molding method of a PVC (polyvinyl chloride) material, which comprises the following steps: S1, heating PVC resin and additives to a molten state, S2, extruding the molten polymer melt through a molding device to form a tubular blank; s3, the tubular blank is subjected to a first cooling stage, and a compact inner layer structure is formed; s4, the pipe blank with the solidified inner surface enters a second cooling stage, secondary cooling is conducted through cold air at the preset low temperature, and a tough outer layer structure is formed; s5, the pipe blank subjected to multiple cooling is subjected to shaping treatment; by means of the multiple cooling technology of inner and outer staged cooling, differential control over the inner layer and the outer layer of the pipe blank is achieved, the performance limitation caused by the single cooling mode in the traditional technology is overcome, the compact high-strength inner layer is formed, the pressure resistance and abrasion resistance of the pipe are enhanced, the cracking resistance of the pipe is improved, and the overall performance of the PVC pipe is effectively improved; and the application range of the PVC pipe is widened.

The invention discloses an environment-friendly safe low-smoke halogen-free cable, and relates to the technical field of cables, the environment-friendly safe low-smoke halogen-free cable comprises a cable assembly, the cable assembly comprises an outer sheath, the outer surface of the outer sheath is fixedly communicated with an air outlet assembly, a plurality of conductors are arranged in the outer sheath, each conductor is hollow, and the outer surface of the outer sheath is fixedly communicated with the air outlet assembly. A plurality of filling pipes are arranged among the exteriors of the plurality of conductors, and the plurality of filling pipes are hollow; according to the environment-friendly safe low-smoke halogen-free cable, when the temperature of air around the cable is low, cold air enters the hollow conductor from the air inlet, air convection is formed in the conductor, heat is taken away and then discharged from the air outlet, and when excessive heat is generated in the use process of the conductor, the heat can enter the filling pipe through the multiple drainage holes, so that the cable is protected. And heat can flow in the conductor, so that excessive local heat dissipation of the conductor can be prevented.

The invention discloses a dynamic energy-saving control method and system for a cold storage based on deep learning and multi-source data fusion, and relates to the technical field of cold storage energy-saving control, and the method comprises the steps: constructing a thermal field sensing network through a fixed sparse sensor array and a mobile thermal field scanning robot, and collecting temperature, humidity and thermal imaging data; reconstructing a three-dimensional thermal pixel field through registration, interpolation and other processing, and performing space-time alignment on the three-dimensional thermal pixel field, equipment parameters and inventory thermal physical properties; constructing digital twinborn deduction thermal field evolution based on a physical information neural network, and recognizing a high-temperature hot spot and a low-temperature safe area in combination with a space-time diagram attention network; the method comprises the following steps: by taking power consumption cost minimization and over-temperature risk controllability as targets, solving an optimal control strategy containing tuyere parameters and compressor frequency by using a multi-agent depth deterministic strategy gradient algorithm, driving equipment to execute targeted cold supply, and enabling a system to comprise a thermal field sensing layer, a data fusion layer, a digital twinning and prediction layer, a decision optimization layer and an execution layer. And accurate temperature control and energy conservation are realized.

The utility model relates to a temperature adjusting device for substrate glass production and a substrate glass production device, and the temperature adjusting device for substrate glass production comprises a layered soaking piece, a heat preservation bracket, a cold air pipe and a heating piece, the layered soaking piece comprises a soaking piece body and a partition plate, a cavity is formed in the soaking piece body, an opening is formed in one side of the soaking piece body, the partition plate divides the cavity into a first soaking cavity and a second soaking cavity in the downward pulling direction of the glass substrate, and the heat preservation support and the opening are installed in a matched mode to seal the layered soaking piece; the cold air pipes and the heating pieces are arranged on the heat preservation support in a penetrating mode so as to be fixed in the first soaking cavity and the second soaking cavity respectively, and an air outlet allowing air to flow out is formed in the cavity wall of the first soaking cavity. According to the temperature adjusting device for substrate glass production, the process temperature of a glass substrate can be accurately adjusted, the problem of temperature non-uniformity in the overflow method production process is solved, optimization and adjustment of quality specifications such as the thickness, the stress and the shape specification of a glass plate are achieved, and the quality and the yield of a finished substrate glass product are improved.

The utility model relates to the technical field of laser welding machines, and discloses a laser welding machine with a heat dissipation mechanism, which comprises a welding machine body and a liquid storage tank fixed on one side of the top of the welding machine body, and further comprises a small water suction pump communicated with one side of the liquid storage tank; cooling liquid in the liquid storage tank is pumped out through cooperation of the small water suction pump and the liquid conveying pipe to be circularly conveyed so as to cool the welding machine body, meanwhile, hot air in the welding machine body is pumped out through cooperation of the cooling mechanism and the exhaust fan, and cold air is input for air circulation; an electric telescopic rod controls a fixing plate to ascend and descend, meanwhile, an adjusting mechanism drives moving wheels to expand outwards, the moving wheels make contact with the ground, the welding machine body can be pushed, workers can conveniently move the welding machine body, and the problems that when an existing laser welding machine is used, the heat dissipation effect is poor, and the welding efficiency is high are solved. And moving is not convenient.

The invention discloses a cotton yarn stretching testing device, and belongs to the technical field of cotton yarn stretching testing devices, the cotton yarn stretching testing device comprises a stretching tester, the upper surface of the stretching tester is fixedly connected with a support frame, and the side surface of the support frame and the upper surface of the stretching tester are provided with clamp pieces; the humidity protection pipe is arranged on the outer surface of the supporting frame, and the outer surface of the supporting frame is fixedly connected with an electric push rod. Meanwhile, cold air can be blown into the sealed protective cover through an air cooler, a cold air pipe, a connecting pipe and an air outlet pipe to create a cold and wet environment, a temperature and humidity sensor can monitor the temperature in the protective cover in real time, and the limitation that a traditional cotton yarn can only be subjected to a stretching test under the dry condition is avoided; it is ensured that the test result is closer to the actual application environment, accurate control over the humidity and temperature of the test environment is achieved, and the stretching test of the cotton yarn under different cold air and humidity climates can be simulated.

The invention provides a novel ceramic matrix composite material and metal material combined adjustable turbine blade, and belongs to the technical field of aerospace, the novel ceramic matrix composite material and metal material combined adjustable turbine blade specifically comprises a metal upper edge plate and a metal lower edge plate; the ceramic matrix composite material front edge assembly is fixedly installed between the metal upper edge plate and the metal lower edge plate, and the ceramic matrix composite material front edge assembly serves as a front edge area of the blade; the adjustable metal blade body is rotationally mounted between the metal upper edge plate and the metal lower edge plate; the rear end of the blade body part of the ceramic matrix composite material front edge assembly is in butt joint with the front end of the adjustable metal blade body to form a complete turbine blade body structure. Through the treatment scheme, the problem that in the prior art, cooling of the front edge of the metal blade consumes a large amount of cold air is solved, and the service life of the adjustable turbine blade is prolonged.