2398 results about "Air cavity" patented technology

The invention discloses a ship plane segmented welding multi-robot path planning system based on visual inspection, and relates to the technical field of ship manufacturing, the ship plane segmented welding multi-robot path planning system comprises a multispectral visual inspection module which is mounted on a portal frame and comprises a laser scanning sensor and an infrared thermal imager, the system is used for collecting three-dimensional point cloud and temperature distribution data of ship plane segments in real time. According to the ship plane segmented welding multi-robot path planning system based on visual inspection, the problem of path planning misalignment caused by assembly errors, thermal deformation and complex working conditions in large ship plane segmented welding is fundamentally solved through a multispectral visual real-time perception and material self-adaption dynamic correction mechanism. A composite correction vector and space-time grid collaborative pre-judgment technology is adopted, the welding seam track precision is effectively improved, it is ensured that the weld leg size strictly reaches the standard in the high-difficulty processes such as wrap angle welding and vertical position welding of the maximum-size workpiece, the defects such as air holes and cracks are eliminated, and the rework rate and the quality risk are greatly reduced.

The utility model provides a gas inlet device which is used for transmitting reaction gas into a reaction chamber and comprises a guide plate and a gas uniformizing chamber, the guide plate is arranged at the top in the gas uniformizing chamber and comprises a center area and an edge area, the edge area is provided with a first through hole for the reaction gas to pass through, and after the reaction gas passes through the guide plate, the first through hole is communicated with the gas uniformizing chamber. And the gas flows into the reaction chamber through the gas uniformizing chamber. According to the gas inlet device, when reaction gas enters the gas inlet device, mutual pollution between pipelines and cyclones generated by gas convection can be reduced, so that the reaction gas is mixed more sufficiently, gas flowing is more stable, the flow of center gas can be reduced, the gas flowing is more uniform, and the uniformity of the gas reaching the surface of a wafer is improved.

The present invention relates to a heaving plate wave energy power generation buoy with a variable cross-sectional area of a water column and a method thereof, belonging to the technical field of wave energy power generation buoys. It includes a buoy body, an air turbine is installed in the air outlet hole at the top of the buoy body, a central pipe located directly below the air outlet hole is arranged at the center of the bottom of the buoy body, a water column cavity communicating with the air outlet hole is formed between the outer side wall of the central pipe and the inner side wall of the buoy body, a heaving plate is fixedly connected to the bottom end of the central pipe, a plurality of uniformly distributed horizontal guide rails are fixedly connected between the upper outer side wall of the central pipe and the middle inner side wall of the buoy body, a telescopic partition plate assembly that divides the water column cavity into an outer water column cavity and an inner water column cavity is slidably installed on the plurality of horizontal guide rails, and a synchronous telescopic driving mechanism for driving the telescopic partition plate assembly to move along the horizontal guide rails is fixed at one end of the horizontal guide rail. The present invention can change the cross-sectional area ratio of the outer water column cavity and the inner water column cavity according to sea conditions, and obtain the optimal wave energy conversion efficiency.

Disclosed is a method of reducing drag on the hull of the vessel by creating a Coanda flow on the hull by jetting a fluid onto the hull or surface continuous with hull at a location above the waterline in the vessel. The Coanda flow extends below the waterline, entraining air below the waterline and adjacent to the hull. The Coanda flows generated by the free jets impacting targets embedded in wear plates can be created in any direction relative to the vessel forward direction. An air cavity is also created by the jetted fluid. A system for reducing drag is also disclosed, wherein the system includes a pump in fluid communication with a source of fluid, power source connected to the pump and at least one nozzle positioned above the waterline of the vessel and oriented towards the hull of the vessel so as to jet the fluid thereon.

The invention discloses an oil return buffer device and an impact test system with the same. The oil return buffer device comprises a cylinder barrel assembly, a buffer piston, an impact piston, an overflow detection loop, an oil charge detection loop and an air charge detection loop. A first inner barrel cavity, a damping hole and a buffering cavity are formed in the cylinder barrel assembly, and the buffering cavity is connected with an oil filling detection loop. The buffer piston is arranged in the first inner cylinder cavity so as to divide the first inner cylinder cavity into a first side cavity and a second side cavity. The buffer piston is provided with a second inner cylinder cavity, the impact piston is arranged in the second inner cylinder cavity to divide the second inner cylinder cavity into an oil return cavity and an air cavity, the oil return cavity communicates with the first side cavity, and the air cavity communicates with the inflation detection loop. The device has the obvious impact stage and the buffering stage, the instant impact pressure is rapidly reduced in the impact stage, the deceleration back pressure is obtained through oil pressure loss in the buffering stage, the buffering effect is obvious and easy to control, and the device is suitable for the field of high-speed large-flow oil return buffering of an impact hydraulic system.

The utility model relates to an air duct structure and a cabinet machine in the technical field of air conditioners, the air duct structure comprises a main air duct, a fan, an air outlet frame and a grating, the grating is installed between the air outlet end of the main air duct and the air outlet frame, airflow in the main air duct contacts with the grating in the flowing process, the grating scatters eddy current, and the air outlet end of the main air duct is connected with the air outlet frame. Air flow blown out of the main air duct passes through the grille and then is blown to the air outlet frame, the pressure difference between the air flow and the air outlet frame is reduced, air outlet is smoother, and therefore abnormal sound is effectively eliminated. The installation position of the grille can effectively scatter the vortex area, meanwhile, installation operation of the grille is more convenient, the installation position is easy to operate, additional positioning pieces do not need to be added in the air duct to fix the grille, the grille only needs to be directly connected to the lower side of the air outlet frame or the upper side of the air outlet end, and the installation operation is convenient. The additional positioning piece is omitted, so that the smoothness of the air cavity of the main air duct is further improved, and the air resistance of the air cavity is reduced.

The invention belongs to the field of aircraft structure design, and particularly relates to a self-system frame stabilizing buffer which comprises a moving floating plug, a buffer outer cylinder, a movable floating plug, a support and a piston rod. The buffer outer cylinder is in a sleeve form and is open at two ends; an outer cylinder joint and an end cover nut are respectively arranged at two ends of the buffer outer cylinder; the support is arranged between the buffering outer cylinder and the end cover nut, and is clamped and fixed by the end cover nut and the end surface of the outer cylinder; nitrogen is sealed in the high-pressure air cavity and has certain pressure, pressure for stabilizing the buffer is provided through the high-pressure air cavity and acts on the movable floating plug and the piston rod at the same time, the stable buffer is located at the neutral position through the pressure difference, and position control over the frame is achieved. When the piston rod of the stable buffer is passively stretched, oil is discharged from the first oil cavity of the piston rod, then the oil flows to the second oil cavity to form certain damping, and when an airplane skates on the ground and a frame is disturbed, the frame is quickly recovered to be neutral through the damping, so that the function of suppressing vibration of the frame is achieved.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body and a cooker cover detachably arranged on the top of the cooker body. An air cavity is formed in the cooker cover, and an exhaust valve communicated with the cooker body is mounted in the air cavity; a first air hole for exhausting air is formed in the top of the air cavity; a second air hole and a third air hole are formed in the bottom of the air cavity; the pot body is provided with a second air channel and a third air channel, the air outlet end of the second air channel is located in the middle of the pot body, and the air outlet end of the third air channel is located at the bottom of the pot body; an air exchange mechanism and an air release mechanism are mounted at the air cavity; the ventilation mechanism changes the unblocking and blocking states of the air holes through adjustment, and only outward exhaust is achieved; the gas release mechanism can open the gas release valve through adjustment, so that high-pressure gas in the pot body is discharged; the exhaust direction of high-pressure air leakage can be adjusted and changed, different use environments are met, and the applicability is improved.

The invention discloses an offshore water quality comprehensive treatment device utilizing an artificial wetland technology, and belongs to the technical field of sewage treatment. The offshore water quality comprehensive treatment device comprises a base, a water inlet and a water outlet are formed in the two sides of the base respectively, a lifting cavity corresponding to the water outlet is formed in the base, and a balancing weight is arranged in the lifting cavity in a sliding fit mode; lifting columns are symmetrically and integrally formed at the top end of the balancing weight, air cavities are symmetrically formed in the base, the top ends of the two lifting columns extend into the corresponding air cavities respectively and are in sliding fit with the air cavities, and ventilation assemblies used for conveying air in the air cavities to the water collection and drainage layer are arranged on the inner side walls of the air cavities; a plurality of teeth are arranged on one side of each lifting column in the length direction of the lifting column, and the teeth are meshed with swing assemblies used for generating periodic arc-shaped swing. And a vibration bracket is embedded in the filler layer. According to the invention, offshore tidal energy is utilized to realize self-adaptive opening and closing of the water outlet, and meanwhile, alternate shearing force is generated on the filtering filler in the base, so that the possibility of hardening of the filler after long-time working is reduced.

The invention provides a heat dissipation system and energy storage equipment, and belongs to the technical field of heat dissipation. The heat dissipation system comprises a first air duct structure and a second air duct structure, wherein the first air duct structure comprises first air duct paper with a first air cavity, a first air inlet and a first air outlet; the first air cavity is used for accommodating part of a first heating element; the second air duct structure comprises second air duct paper with a second air cavity, a second air inlet and a second air outlet, and the first air duct paper and the second air duct paper are arranged side by side; the second air cavity is used for containing a second heating piece, and the heating value of the second heating piece is smaller than that of the first heating piece. The air inlet fan is arranged at the first air inlet; the reversing fan is arranged at the downstream of the airflow direction of the first air cavity and the upstream of the airflow direction of the second air cavity; and the air outlet fan is arranged at the second air inlet, and the air outlet fan is used for introducing the air flow into the second air cavity and blowing the air flow out through the second air outlet. According to the invention, the uniformity of heat dissipation can be improved, and the aesthetic property of a corresponding product can be improved.

The utility model discloses a noise reduction device for an air source heat pump unit, which belongs to the technical field of air source heat pump units and is characterized in that effective dispersion is carried out through a breathable mesh plate, primary noise reduction treatment is carried out on airflow through a noise reduction plate, and low-frequency noise reduction treatment is carried out on noise in the airflow again through low-frequency sound-absorbing cotton. The noise reduction device for the air source heat pump unit comprises a unit body, a condenser is arranged on the unit body, air guide barrels with cooling fans are symmetrically arranged at the top of the unit body, a cooling air barrel is installed at the top of the unit body, an air guide cavity is formed in the cooling air barrel, and a ventilation mesh plate is installed at the middle section of the air guide cavity. A noise reduction plate is installed on the inner side edge of the heat dissipation air cylinder and corresponds to the position between the two breathable mesh plates, an air outlet is formed in one end of the air guide cavity, and a plurality of pieces of low-frequency sound absorption cotton are installed at the position, corresponding to the air outlet, of the heat dissipation air cylinder.

The embodiment of the utility model provides electronic equipment, and relates to the technical field of electronic equipment. The electronic equipment provided by the embodiment of the utility model comprises a shell, a heat dissipation mechanism and a heating element, wherein a containing cavity is formed in the shell, and the containing cavity is provided with an air outlet; the heat dissipation mechanism is arranged in the containing cavity and comprises a fan and a fan cover, an air cavity is formed in the fan cover, the fan is arranged in the air cavity, the air cavity is provided with an air outlet, and the air outlet corresponds to the air outlet; the heating element is located on the air outlet side of the fan and connected with the fan cover.

The invention provides a PEALD cavity structure, and relates to the technical field of coating equipment. The structure comprises an outer cavity, an inner cavity, a lifting system, a heating platform deck, an air exhaust system and a pressure controller. The inner cavity is arranged in the outer cavity, an opening matched with the heating carrying table is formed in the bottom of the inner cavity, and the lifting system controls connection and separation of the heating carrying table and the inner cavity. And the inner cavity is internally provided with the separator to form a conical reaction space, so that plasma distribution is improved. And the annular exhaust hole uniformly exhausts redundant gas, so that the film thickness uniformity is improved. A pressure controller is arranged in the outer cavity to maintain fixed pressure difference between the inner cavity and the outer cavity and prevent diffusion of process gas. According to the design, the independence of the reaction area is realized, the utilization rate of the precursor is improved, the maintenance process is simplified, and the cleanliness of the cavity is enhanced.

The invention discloses a sealing structure for a test, and an aging test and leakage rate detection method and system. The sealing structure comprises a tested sealing assembly and an air cavity assembly integrated in the tested sealing assembly, and serialized test samples with different filling rates and compression rates are formed by regulating and controlling the groove width and the groove depth of a sealing ring mounting groove so as to simulate various actual sealing states. An aging test adopts a multi-factor coupling accelerated aging method, and a plurality of material characterization means are combined to systematically evaluate the evolution rule of the sealing performance. According to leakage rate detection, static pressure maintaining and dynamic pressure adjusting dual-mode measurement is achieved through an air tightness detector, and the sealing characteristics under different pressure conditions are comprehensively reflected. According to the invention, direct and systematic detection of the leakage rate of the sealing structure is realized, and an innovative solution is provided for sealing performance evaluation and service life prediction of electrical equipment.

The invention discloses a pipeline leakage monitor based on optical fiber interference and a monitoring method thereof, and belongs to the technical field of pipe network leakage monitoring. According to the invention, through the cooperation of the differential deformation of the outer cylinder and the inner cylinder and the air cavity, the two paths of sensing optical fibers are driven to generate reverse and equal-length length strain, and the improvement of the sensitivity of pipeline micro leakage sound pressure signal-optical phase signal conversion and the suppression of environmental common-mode noise are realized; a sound pressure signal generated in the leakage process of a pipeline is converted into phase change of light through a balanced optical fiber interferometer, a leakage signal is demodulated through a phase detection technology, and high-precision pickup of the tiny leakage sound pressure signal of the pipeline is achieved; the sound velocity is calibrated in real time through the temperature sensor and the sound velocity compensation module, and microsecond-level wireless signal time service is combined, so that the technical effects of large positioning error and difficulty in multi-device synchronous sampling caused by temperature drift of the sound velocity along with a transmission medium are solved.

The invention relates to a heaving plate wave energy power generation buoy with the variable cross section area of a water column and a method, and belongs to the technical field of wave energy power generation buoys.The heaving plate wave energy power generation buoy comprises a buoy body, an air turbine is installed in an air outlet hole in the top of the buoy body, and a center pipe located under the air outlet hole is arranged in the center of the bottom of the buoy body; a water column cavity communicated with the air outlet hole is formed between the outer side wall of the center pipe and the inner side wall of the buoy body, a heaving plate is fixedly connected to the bottom end of the center pipe, and a plurality of evenly-distributed horizontal guide rails are fixedly connected between the outer side wall of the upper portion of the center pipe and the inner side wall of the middle of the buoy body. A telescopic partition plate assembly dividing the water column cavity into an outer water column cavity and an inner water column cavity is installed on the horizontal guide rails in a sliding mode, and a synchronous telescopic driving mechanism used for driving the telescopic partition plate assembly to move along the horizontal guide rails is fixed to one ends of the horizontal guide rails. The proportion of the cross section area of the outer water column cavity and the cross section area of the inner water column cavity can be changed according to the sea condition, and the optimal wave energy conversion efficiency is obtained.

The utility model discloses an adjustable air pump which comprises a shell and an air inlet hole pipe arranged in the shell, a plurality of air inlet holes are formed in the pipe wall of the air inlet hole pipe, and the adjustable air pump further comprises an air inlet adjusting sleeve and an adjusting driving device used for driving the air inlet adjusting sleeve to axially move so as to adjust the sizes of the air inlet holes. The air inlet adjusting sleeve is arranged between the air inlet hole pipe and the shell in a sleeved mode. According to the adjustable air pump, the air inlet adjusting sleeve is arranged between the air inlet hole pipe and the air pump shell, and the adjusting driving device is arranged, so that the hole diameters of all the air inlet holes in the air inlet hole pipe can be accurately adjusted on the water surface. On-line adjustment of the aperture of the air inlet hole of the air pump can be achieved in the underwater environment, the tedious operation that the whole air pump needs to be manually disassembled and replaced in a traditional method is effectively avoided, the structural design is simple, operation is convenient and fast, and the working efficiency and economical efficiency are improved.

Disclosed is a method of reducing drag on the hull of the vessel by creating a Coanda flow on the hull by jetting a fluid onto the hull or surface continuous with hull. The fluid is jetted onto the hull or surface continuous with the hull at a location above or below the waterline of the vessel. The fluid is jetted from within a habitat positioned at least partially below the waterline, the habitat being vented to atmosphere. The habitat has an open end below the waterline. The Coanda flow extends entrains air below the waterline and adjacent to the hull. An air cavity or sheet is created by the jetted fluid. A system for reducing drag is also disclosed.

The embodiment of the invention discloses a pressure counterweight floating Z-axis device which comprises an R-axis mechanism and a Z-axis, a shaft cavity corresponding to the Z-axis is formed in the R-axis mechanism, the upper end of the Z-axis is located in the shaft cavity, an adsorption air channel is formed in the Z-axis, an air floating air outlet hole and an adsorption air inlet hole are formed in the inner wall of the shaft cavity, and a negative pressure air outlet hole corresponding to the adsorption air inlet hole is formed in the Z-axis. A positive pressure air passage and a negative pressure air passage are arranged in the R-axis mechanism; the other end of the adsorption air channel is used for being connected with an air nozzle; one end of the positive-pressure air passage is connected with an external positive-pressure air source, and the other end is communicated with the air-floating air outlet; one end of the negative-pressure air passage is connected with an external negative-pressure air source, and the other end is communicated with the adsorption air inlet; a balance weight motor is arranged in the shaft cavity and comprises a stator and a rotor, and the rotor is connected with the Z shaft. According to the device, vertical floating buffering is achieved when materials are picked downwards and stressed, and meanwhile adjustment of external motor pressure on the Z axis and monitoring and feedback of the pressure of picked products are achieved.

The invention relates to the technical field of plate processing, in particular to a plate conveying air bearing table with a material pushing structure, which comprises a support, a buffer cavity, a table plate, a fan and a material pushing mechanism, the buffer cavity is fixed at the top end of the support, an air inlet is formed in the bottom of the buffer cavity, the fan is arranged on the support, and the material pushing mechanism is arranged on the table plate. An air inlet is formed in the support and connected with an air outlet of the fan through a connecting pipe, a table plate used for bearing plates is arranged at the top end of the buffer cavity, a plurality of air holes are formed in the surface of the table plate, and a pushing mechanism used for pushing the plates is further arranged on the support and arranged on one side edge of the table plate. The transverse pushing mechanism is arranged on the air floating table, so that the plate has an action of pushing towards the electronic cutting saw on the air floating table, manual auxiliary pushing can be reduced, the plate can be accurately pushed to an inlet of the electronic cutting saw, the feeding efficiency of the plate is improved, and meanwhile, the precision degree of plate cutting is improved.

The utility model discloses a bridge pier column detection device which comprises a bridge pier column, the outer surface of the bridge pier column is movably connected with a frame, the frame is divided into two sections, a rotating shaft is rotatably connected between the two sections of the frame, the lower surface of the frame is fixedly connected with four supports, the inner surfaces of the four supports are fixedly connected with rotating wheels, and the rotating wheels are fixedly connected with the rotating shafts. The lower surface of the frame is fixedly connected with a pier column detection device, the upper surface of the frame is fixedly connected with an air pipe, the air pipe is provided with an air hole, the upper surface of the air pipe is fixedly connected with an air pump, and the output end of the air pump is communicated with the air pipe. By means of the components, dust and foreign matter on the surface of the pier column can be removed, the surface is kept clean, and it is guaranteed that the dust and the foreign matter cannot interfere with normal work of the pier column detection device.

The dam body water surface anti-icing device comprises an air pump, an air inlet pipe body and air outlet pipes, the output end of the air pump is connected with the air inlet pipe body, the air inlet pipe body is evenly connected with a plurality of air outlet pipes, each air outlet pipe is evenly provided with air outlet holes, and the dam body water surface anti-icing device further comprises a floating unit. The floating unit comprises floating bodies and connecting ropes, the multiple connecting ropes are evenly arranged at the top end of the air inlet pipe body in the axial direction of the air inlet pipe body, the top end of each connecting rope is connected with one floating body, and the floating bodies float on the water surface and provide pulling force for the air inlet pipe body through the connecting ropes. The floating body floats on the water surface, so that the air outlet pipe is suspended in the water; air is conveyed into the air inlet pipe body and the air outlet pipe through the air pump, so that the air outlet pipe generates bubbles in the water body, and the blockage probability of the air outlet pipe can be greatly reduced through shaking of the air outlet pipe in the water body.

The invention provides a diaphragm bubble point pressure testing device and a testing method. The diaphragm bubble point pressure testing device and the testing method are used for solving the technical problems that an existing diaphragm bubble point pressure testing device is complex in structure, at least two persons need to be matched for operation during testing, and air tightness is attenuated due to the fact that a drainage hole is independently formed or the resetting process is long due to the fact that drainage is detached. According to the diaphragm bubble point pressure testing device, an air cavity is arranged to be of a barrel-shaped structure with the bottom being a spherical surface, a liquid cavity is arranged to be of a hollow columnar structure with the upper portion and the lower portion being open, and a diaphragm to be tested is clamped between the air cavity and the liquid cavity in a sealed mode; the position of the air inlet nozzle is specially designed, so that the uniformity of an air pressure field in the air cavity can be ensured, and the residual liquid can be discharged through the air inlet nozzle when the air cavity is inclined by a certain angle by ingeniously combining with the rotating air cavity, so that the arrangement of an independent drainage hole is effectively avoided, and the air tightness of the testing device is ensured; and the whole testing device does not need to be disassembled, and the drainage time is reduced to several seconds from half an hour after the device is reset.

The invention relates to the technical field of biological medicine industry, and provides a multi-stage vacuum heat-insulation high-temperature experimental facility which comprises a body, the body comprises an external box body and an inner container fixed in the box body, a flow guide cover is fixedly installed in the inner container, a detachable material plate is installed in the flow guide cover in a clamped mode, and the material plate is connected with the box body. Steps which are diagonally arranged are formed at the upper end and the lower end of the inner container, an air channel is formed between the inner container and the flow guide cover, an air cavity is formed between the inner side of each step and the flow guide cover, and a movable push plate is arranged in each air cavity; it can be understood that the flow guide cover is arranged in the inner container, the air channel and the air cavity are formed between the flow guide cover and the inner container, airflow circulation is driven by means of movement of the push plate in the air cavity, and materials are evenly heated on the material plate; meanwhile, the material plate is clamped in the flow guide cover through the elastic piece and can be easily installed and taken out through operation of a hand lever, direct contact with the hand is avoided, and using convenience and safety are improved.

The invention discloses a receiver-drier, and belongs to the field of receiver-driers. The receiver-drier comprises a shell and a filter box fixed in the shell, an air outlet and an air inlet are formed in the upper end of the shell; the air outlet is communicated with the inner bottom of the shell through a breather pipe; a plurality of water absorption cavities are uniformly formed in the filter box in the circumferential direction; an upper filter plate is mounted at the upper end of each water absorption cavity; a drying agent is filled in the water absorption cavity; a rotating pipe is rotationally connected in the shell; the upper end of the rotating pipe is provided with an upper air cavity right opposite to the upper end of the water suction cavity. A lower filter plate abutting against the lower end of the filter box is arranged at the lower end of the rotating pipe. A lower air cavity is formed in the lower end of the lower filter plate and located under the upper air cavity; the upper air cavity and the lower air cavity are both communicated with the rotating pipe; a centrifugal impeller is rotationally connected into the upper air cavity; and a heating wire is fixedly connected in the lower air cavity. And through rotation of the rotating pipe, the drying agent in each water absorption cavity is regenerated in sequence.

The invention discloses a hydrogen storage cylinder water pressure testing device and method, the device comprises a clamping assembly and a water injection and evacuation assembly, the clamping assembly comprises a clamping mechanism and a swing driving mechanism, and the swing driving mechanism is used for driving the clamping mechanism to swing so as to control the hydrogen storage cylinder clamped on the clamping mechanism to swing up and down; the water injection emptying assembly comprises a testing tool mechanism and a water injection pressurizing mechanism, the testing tool mechanism comprises a tool body, a vacuum pipe and a water injection pipe, the tool body is arranged in the bottle nozzle in a sleeved mode, and the vacuum pipe is provided with a gas inlet end extending into the hydrogen storage bottle and an exhaust end communicated with the outside; the water injection pipe is provided with a water outlet end communicated with the interior of the hydrogen storage cylinder and a water inlet end connected with the water injection pressurization mechanism, and the air inlet end is provided with a floating piece. The liquid level in the hydrogen storage cylinder swings relative to the hydrogen storage cylinder, so that the gas inlet end of the vacuum tube is driven to different areas in the hydrogen storage cylinder, gas is discharged outwards, it is guaranteed that the hydrogen storage cylinder is filled with liquid, formation of a gas cavity is avoided, and the testing accuracy is improved.

The utility model discloses a cooling device and annealing equipment. The cooling device comprises a cooling disc, a machine body provided with a cooling cavity, and an air intake and exhaust system. The machine body comprises a top wall plate located above the cooling cavity, and a boss with an air inlet diffusion cavity is arranged at the position, corresponding to the central area of the cooling disc, of the top wall plate. A top opening of the air inlet diffusion cavity communicates with an air inlet system located on the top face of the top wall plate. At least the central area of the bottom of the air inlet diffusion cavity is provided with a flow baffle; a plurality of air outlet holes are sequentially formed in the bottom of the air inlet diffusion cavity in the circumferential direction of the flow baffle, and the two ends of each air outlet hole communicate with the air inlet diffusion cavity and the cooling cavity correspondingly. According to the application, the air inlet diffusion cavity, the flow baffle and the plurality of air outlets are arranged in the central area of the top of the cooling cavity, so that the airflow field can be optimized, and the problem of low product yield caused by the fact that some peeled wafers fall back on the wafer in the cooling process after the annealing process is solved.

The invention discloses a novel floating breakwater-oscillating water column wave energy conversion device integrated system which comprises a breakwater assembly, the bottom of the breakwater assembly is fixed through an anchor chain, an air chamber is arranged in the breakwater assembly, the top of the air chamber is provided with an air hole pipeline, the air hole pipeline is connected with a turbine generator, and the turbine generator is connected with an oscillating water column wave energy conversion device. A permeable structure is fixed to the wave facing side of the breakwater assembly, and a gap is formed between the permeable structure and the breakwater assembly. A permeable structure, an oscillating water column wave energy device and a floating breakwater are integrated, the permeable structure is used for dissipating high-frequency short waves, reducing wave loads acting on the structure and improving the stability and survivability of the structure, and in order to improve the energy dissipation effect of the permeable structure, a certain distance is formed between the permeable structure and an air chamber structure; the OWC wave energy device is used for absorbing long-wave energy for power generation, and the blocking capacity of the integrated system to long waves is improved; through integration of the three, a basic platform is shared, sea area resources are saved, operation and maintenance cost is reduced, and diversification of functions of the integrated system is realized.

The utility model discloses an air conditioner copper pipe chamfering chip removing device which comprises an air nozzle, the air nozzle comprises a body, an air cavity is formed in the body, an air injection hole used for injecting air into an air conditioner copper pipe in a clamping state is formed in the rear end of the body, and the air injection hole is a straight hole. The air injection hole comprises an air injection hole inlet end and an air injection hole outlet end used for stretching into a pipe opening of the clamping end of the air conditioner copper pipe. In the radius direction of the body, the outlet ends of the gas orifices are positioned on the outer sides of the inlet ends of the gas orifices; the air injection holes are obliquely formed in the circumferential direction of the body, the inlet ends of the air injection holes are communicated with the rear end of the air cavity, the air injection holes are circumferentially and uniformly distributed around the axis of the body, and the body is provided with an air cavity air inlet communicated with the air cavity; the air nozzle cylinder is used for driving the air nozzle to move along the axis direction of the air conditioner copper pipe and is in driving connection with the air nozzle. The chamfering chip removing device for the air conditioner copper pipe can effectively remove cutting chips in the air conditioner copper pipe.

The present invention belongs to the technical field of underwater drilling and blasting, and in particular, is a combined protective device of a bubble curtain and a vibration reduction hole for underwater drilling and blasting, comprising a bedrock, an air outlet and a fixed rope, wherein a vibration reduction hole is arranged inside the bedrock, a clamp is fixed at the lower left side of the air outlet, a counterweight is arranged below the fixed rope, a first leather hose is connected above the bubble curtain tube, and a connecting mechanism is installed above the first leather hose. The combined protective device of a bubble curtain and a vibration reduction hole for underwater drilling and blasting removes water from the vibration reduction hole through bubbles generated by the bubble curtain tube, thereby solving the problem that water in the hole cannot be removed, and enhancing the shock-absorbing effect of the vibration reduction hole. There is no need to set up multiple rows of vibration reduction holes, thereby reducing costs. A large number of bubbles are removed from the orifices of multiple vibration reduction holes, thereby forming a stable bubble curtain, which has a better weakening effect on underwater shock waves than traditional bubble curtains, and multiple bubble curtain tubes reduce the failure rate.