17results about How to "Avoid heat accumulation" patented technology

The application belongs to the technical field of marine chemical analysis, and relates to an underwater in-situ mass spectrometer acquisition control system and method. The method comprises the following steps: a vacuum extraction step: the coarse extraction mode and the fine extraction mode are adaptively switched, the ion detection device is vacuum-extracted until the pressure is reduced to a preset threshold, and a required vacuum degree is maintained; a preheating preparation step: the membrane sampling device is initially sampled, and heating is performed at the same time until a preset working temperature is reached and the temperature is maintained constant; a dissolved gas formal detection step: the membrane sampling device is continuously supplied with water samples to be detected, and in-situ mass spectrum detection of dissolved gas in the water samples is completed; an instrument cabin gas discharge step: when it is detected that the underwater in-situ mass spectrometer floats to the water surface and the air pressure in the instrument cabin exceeds an upper limit threshold of gas discharge, the instrument cabin is discharged; a liquid leakage protection step: when liquid leakage occurs in the sampling cabin and the two core contacts are short-circuited, the high-pressure electromagnetic valve in the normally open state is closed to quickly block the liquid from entering the ion detection device.

The utility model belongs to the technical field of blanking cooling, and particularly relates to a blanking cooling device for a refining furnace, which comprises a bearing frame, moving wheels are fixedly connected to the bottom of the bearing frame. The moving wheels are symmetrically arranged at the bottom of the bearing frame; the top of the bearing frame is fixedly connected with a cooling box; a cooling bin is arranged in the cooling box; a groove body is arranged between the cooling box and the cooling bin; a water storage tank is fixedly connected to the interior of the bearing frame; a circulating pump is mounted on the side wall of the water storage tank; the output end and the input end of the circulating pump are connected with a connecting pipe; the input end of the connecting pipe is arranged at the inner position of the water storage tank; the output end of the connecting pipe is arranged in the cooling box; a water outlet is formed between the water storage tank and the cooling tank; by means of the structure, the cooling pool and the circulating cooling system are arranged, heat accumulated in the transfer cavity can be rapidly taken away, the heat accumulation phenomenon is avoided, and normal operation and the service life of equipment are guaranteed.

The utility model discloses a kind of power collection line distributed protection devices, including warning component and temperature detection component, the temperature detection component includes lower arc shell and upper arc shell, one end between lower arc shell and upper arc shell is rotatably connected by pin shaft, the one end of lower arc shell and the one end of upper arc shell are fixedly connected with connecting block, connecting bolt is inserted between two connecting blocks, the one end of connecting bolt is threadedly connected with nut, the circumference of lower arc shell and upper arc shell is equipped with two air vents, the inside wall of the two sides of lower arc shell and upper arc shell is adhesively connected with antiskid pad, and multiple ventilation grooves are provided on antiskid pad.The utility model is fixedly wrapped in the fiber-optic temperature measuring point of cable by lower arc shell and upper arc shell, and temperature sensor is contacted with the fiber-optic temperature measuring point of cable, this kind of mode avoids overwrap, thereby avoiding heat accumulation at temperature measuring point, and improving the accuracy of cable temperature detection.

This invention relates to the field of water-guided laser technology, and discloses a control method and device for water-guided lasers, as well as a readable storage medium. The control method for water-guided lasers includes the following steps: using a coaxial vision sensor to acquire a coaxial image of the nozzle inlet end face and the laser focused spot through a first optical axis, where the first optical axis is shared by the beam splitter and the water-guided laser optical path; and performing dark field correction processing on the coaxial image. This water-guided laser control method, by acquiring a coaxial image of the nozzle inlet end face and the laser focused spot through a coaxial vision sensor, changes the ratio of meridional rays to oblique rays incident on the water jet, transforming the energy distribution of the water jet cross-section from a centrally concentrated Gaussian-like distribution to a uniform distribution with sufficient energy at the edges. This effectively solves the problem of uneven processing caused by insufficient edge energy in traditional water-guided laser processing, improving processing accuracy and surface quality.

The utility model belongs to the technical field of Bluetooth earphone chip heat dissipation, and discloses an earphone decoding chip heat dissipation assembly, which comprises a C-shaped exposed heat dissipation part, a decoding chip pressing plate and two groups of clip-shaped fixing chucks, the horizontal decoding chip pressing plate is arranged in the C-shaped exposed heat dissipation part, the clip-shaped fixing chucks are arranged at the two ends of the C-shaped exposed heat dissipation part, and the clip-shaped fixing chucks are arranged in the C-shaped exposed heat dissipation part. The C-shaped exposed heat dissipation part, the decoding chip pressing plate and the concentric-square-shaped fixing clamping head are integrally machined by metal, the C-shaped exposed heat dissipation part is fixedly installed on one side of the shell, one side of the C-shaped exposed heat dissipation part is exposed outside and makes contact with air, a decoding chip is arranged below the decoding chip pressing plate, the decoding chip pressing plate is attached to the top face of the decoding chip, and the C-shaped exposed heat dissipation part is fixedly installed on the other side of the shell. According to the utility model, the structure design is compact and reasonable, heat generated by the decoding chip in the Bluetooth earphone can be conducted to the outside to be dissipated, the heat accumulation of the decoding chip can be prevented, the frequency can be prevented from being reduced, the service life of the decoding chip can be prolonged, and the heat dissipation performance is excellent.

The invention discloses a waste lithium battery black powder crushing and sorting device and a recovery process in the technical field of waste lithium battery black powder recovery, and the waste lithium battery black powder crushing and sorting device comprises a feeding unit, an electrode material dissociation unit and a sorting and enriching unit which are sequentially arranged along the material flow direction, comprising an active material collection system, a metal current collector separation system and an electrode active material purification system, and inert gas protection and temperature monitoring are introduced in the core link of crushing and dissociation, so that the risk of combustion explosion is eradicated fundamentally, the chemical stability of an electrode material is guaranteed, and the service life of the electrode material is prolonged. Secondly, shearing and crushing are adopted to optimize the dissociation effect, pneumatic separation, eddy current and magnetic separation multi-stage and precise separation technologies are combined, a returned material crushing closed circuit is innovatively introduced, the black powder collection rate and the separation purity and total recovery rate of copper and aluminum metal are greatly improved, and finally, the recovery rate of the copper and aluminum metal is increased. All the units are integrated into a continuous automatic system, and maximum utilization of resources is achieved.

The utility model discloses a cooling and fresh-keeping device for zongzi production, and relates to the technical field of food fresh-keeping. The device comprises a support frame; the mounting seat is rotationally mounted on the supporting frame through a rotating seat, and the mounting seat is driven by a driving component to rotate; and the rotary drum comprises an inner-layer drum and an outer-layer drum which are coaxially arranged, and the inner-layer drum and the outer-layer drum are both of hollow structures. According to the utility model, the driving component drives the double-layer hollow rotary drum to rotate, a bidirectional three-dimensional air supply system formed by direct blowing of the center shaft through hole and side blowing of the circumferential spray head is combined, and the through-type ventilation design of the hollow bearing structure is matched, so that the problems of low efficiency of traditional standing cooling and single airflow of rotary equipment are effectively solved; cooperative circulation of outward diffusion of cold air from the center of the rotary drum and horizontal penetration of the side face is achieved, the cooling uniformity inside and outside the zongzi is remarkably improved, center heat accumulation caused by stacking is avoided, and the cooling time is greatly shortened on the premise that food sanitation and safety are guaranteed.

The invention relates to a QFN multi-core sealed heat dissipation structure and a processing technology thereof, and relates to the technical field of QFN packaging, the QFN multi-core sealed heat dissipation structure comprises a plurality of substrates for chip installation, the bottom of each substrate is provided with a heat dissipation bonding pad which can be exposed on the bottom surface of a plastic package body, the substrate is connected with a heat conductor, the heat conductor is connected with a heat dissipation plate, and the heat dissipation plate is connected with a heat dissipation chip. Heat on the substrate can be conducted to the heat dissipation plate through the heat conductor, and the heat dissipation plate can be exposed on the top surface of the plastic package body. The heat dissipation area of the QFN multi-core sealed semiconductor device can be increased, the influence of the circuit board on heat dissipation is reduced, heat accumulation of the semiconductor device is effectively avoided, and the operation stability of the QFN multi-core sealed semiconductor device is improved.

The utility model relates to a laser crystal fixing structure which comprises a crystal seat, the crystal seat is provided with a through hole, a liquid inlet hole and a liquid outlet hole, the side walls of the two ends of the through hole are provided with installation parts extending towards the axis direction of the through hole, and the liquid inlet hole and the liquid outlet hole are respectively communicated with the through hole to form a cooling liquid circulation channel. The utility model also relates to a solid laser, the laser crystal fixing structure and the solid laser provided by the utility model fix the laser crystal through the mounting parts at the two ends, so that a gap is formed between the laser crystal and the through hole, the laser crystal can be soaked in the cooling liquid in the cooling process, and the cooling efficiency is improved.

The utility model relates to related technical field of automobile parts provides a kind of for producing automobile parts's die structure, injection mold and injection equipment.Die structure includes first die, second die and 3D printing insert, first die is equipped with first cavity, first die and second die are oppositely movable, second die is equipped with second cavity, first cavity and second cavity are communicated to form die cavity, die cavity is used to form surface cover, 3D printing insert is located in first die, 3D printing insert is formed with functional position and conformal cooling waterway, conformal cooling waterway is arranged with functional position to avoid, conformal cooling waterway is arranged around the shape of 3D printing insert or along the structure trend of elbow area on 3D printing insert for forming surface cover, avoid the structure interference of ejector pin, exhaust insert and conformal cooling waterway, quickly take away the residual heat of product's elbow area, reduce the deformation shrinkage caused by heat residual after demoulding, to improve product forming quality.

The invention provides a silo flow changing device. The problem that the flow changing performance of a circular truncated cone type flow changing device cannot be adjusted is solved. The silo comprises a silo body, the lower end of the silo body is of a conical barrel structure with the diameter gradually reduced downwards, and a discharging opening for communicating the inside and the outside is formed in the bottom of the silo body; a hollow interlayer which extends in the vertical direction and is communicated end to end in the horizontal direction is arranged in the side wall of the silo, and a plurality of ventilation holes communicated with the hollow interlayer are formed in the outer side wall of the silo; a plurality of fans are arranged on the outer side wall of the silo, the fans are in control connection with the controller, and an air outlet of each fan communicates with the end, away from the hollow interlayer, of the corresponding ventilation hole; a distribution pipe communicated with the ventilation holes is fixedly arranged in the hollow interlayer; the bottom of the distribution pipe is provided with a plurality of first air supply pipes which are arranged at intervals in the circumferential direction of the distribution pipe and extend towards the lower portion of the distribution pipe, the first air supply pipes are connected with second air supply pipes, and the ends, away from the first air supply pipes, of the second air supply pipes penetrate into the silo and are connected with the air inlet end of the pneumatic flow changing device.

The invention discloses an automobile lower guard plate screw hole stamping device which comprises a sleeve rotationally connected to the interior of the bottom end of a cylinder, a male die is slidably connected with the sleeve, and a plurality of brush plates are mounted on the inner wall of the sleeve and abut against the cylindrical surface of the male die. The telescopic multi-stage copper pipe is integrated in the male die. One end of the multi-stage copper pipe is in contact with cooling liquid, heat generated during punching operation of the male die can be transferred to the cooling liquid, annealing softening caused by heat accumulation in the male die is avoided, meanwhile, the male die retracts to drive the brush plate to rotate, the working surface of the male die is automatically and evenly coated with a lubricant, and the working surface of the male die is automatically and evenly coated with the lubricant while the male die and the multi-stage copper pipe form an internal and external synergistic heat dissipation mode. And lubrication preparation can be made in advance for the next stamping process, and meanwhile the problems that when a traditional male die is used for stamping, abrasion is large, the service life is short, and the cutting edge is annealed and softened due to excessive internal accumulated heat are well solved.

The utility model relates to the field of drivers, in particular to an underwater shaftless propulsion motor with a water-lubricated rim. Comprising a casing, a stator iron core and an annular rotating body are arranged in the casing, an electrified coil group is arranged in the stator iron core, a rotor iron core is arranged on the rotating body, paddles are arranged on the inner annular surface of the rotating body, bearings are arranged on two sides of the rotating body, the bearings are fixedly connected with the casing, and flow guide covers are arranged on two sides of the casing. The electrified coil group is electrified to generate a magnetic field to drive the rotor core to rotate to realize rotation of the rotating body, and the blades on the rotating body rotate to drive water flow to flow. The internal structure of the whole machine is subjected to waterproof treatment, no sealing ring needs to be additionally arranged, materials needed for assembly are reduced, the assembly production time is shortened, the weight of the whole machine is reduced, and the underwater working power of the motor can be improved.

The application relates to the field of high-voltage battery control, in particular to a high-voltage control box, a high-voltage control system, an energy storage system and the high-voltage control box comprises a control box, a control loop and a battery management system, the control box is provided with a partition plate for supporting the battery management system, the partition plate is used for layering the battery management system and the control loop, the control box is provided with an air-cooled heat dissipation module, the control box and the battery are separately arranged, and the air-cooled heat dissipation module is arranged, so that the battery management system is prevented from accumulating heat, and the safe operation of the battery management system is ensured; the high-voltage control system is connected with cluster-level batteries, so that the cluster-level batteries are modularized with the high-voltage control box, the battery / high-voltage control box is easy to replace, and maintenance is easy; and the energy storage system is externally provided with a terminal resistance module of CAN communication, so that the universality of the high-voltage control system and the energy storage system is improved.

The invention discloses a preparation method of salt-heat double-tolerant whey protein, which comprises the following steps: dispersing whey protein in water to obtain a solution A; the mass concentration of the protein in the solution A is 1-5%, and the pH is 7-9; performing ultrahigh pressure treatment on the solution A to obtain a solution B; the pressure of the ultrahigh pressure treatment is 300 to 600 MPa, and the time is 5 to 10 minutes; adjusting the pH value of the solution B to 4-5 to obtain a solution C; centrifuging the solution C, and recovering the precipitate; dispersing the precipitate in water, and adjusting the pH value to 6.0-7.0 to obtain a solution D; and drying the solution D to obtain the salt-heat double-tolerant whey protein. After being heated in a system containing NaCl or CaCl2, the salt-heat double-tolerant whey protein dispersion liquid (5%, w / w) still has good flowability. The salt-heat double-tolerant whey protein prepared by the invention can be used for preparing protein beverages or smokable gel rich in electrolyte.

The present application provides a polarization beam splitting module, which is applied to an environment for receiving a pulsed light. The polarization beam splitting module comprises a linear polarizer, a quarter phase retarder, a beam splitter, an air layer, a mirror and an isolation layer. The linear polarizer is used to convert an arbitrary light beam into linearly polarized light. The quarter phase retarder is used to convert the linearly polarized light into circularly polarized light. The beam splitter is used to split a circularly polarized light beam into two left-handed (right-handed) circularly polarized light beams, which have the same phase and intensity and perpendicular traveling directions. The left-handed (right-handed) circularly polarized light is converted into right-handed (left-handed) circularly polarized light after passing through the air layer and the mirror. The mirror is used to change the transmission direction of the light beam. The isolation layer is used to protect the polarization beam splitting module. The present application further provides a four-beam polarization beam splitting system comprising the polarization beam splitting module.

The utility model discloses an electric heating block structure, including stainless steel shell, aluminium core and heating pipe, the inside of aluminium core is equipped with the expansion cavity of extending to aluminium core bottom, the stainless steel shell is equipped in aluminium core outside, the outside of aluminium core is provided with at least one recessed cooperation slot, the inside of stainless steel shell is equipped with the convex structure, the convex structure is inserted cooperation slot in. Form the clamping cooperation through setting cooperation slot in aluminium core outer periphery, the convex structure is set in the inner wall of stainless steel shell, and the design of the bottom inside edge compression can effectively prevent the problem that aluminium core appears loose, displacement or drop -out in long -time cold -hot cycle process, improves overall structure stability and service life.