9results about How to "Improve overheating" patented technology

The invention discloses a low-viscosity high-stability perfluoropolyether-based magnetic liquid and a preparation method thereof, and relates to the technical field of magnetic material preparation, and the preparation method comprises the following steps: preparing composite nano magnetic particles of ferroferric oxide and carbon nanotubes by adopting a chemical in-situ coprecipitation method; coating the composite nano magnetic particles with a perfluoropolyether surfactant; the composite nano magnetic particles are dispersed into the perfluoropolyether oil-based carrier liquid, and the solid content of the composite nano magnetic particles accounts for 5 wt%-20 wt%. Ferroferric oxide and carbon nano tube composite nano magnetic particles are obtained through a chemical precipitation method, the particles are stably dispersed in perfluoropolyether-based carrier liquid under the modification effect of a surfactant, and under the condition of low solid content, the dispersion stability and magnetic field stability of the magnetic liquid are greatly improved; the problem of overheating caused by the fact that high-viscosity magnetic liquid is used for high-rotating-speed sealing is greatly solved.

The heat preservation device comprises a bottom plate, a supporting plate is fixedly connected to the middle of the upper surface of the bottom plate, an oil furnace body is installed at the upper end of the supporting plate, two sets of heating openings are formed in the upper end of the oil furnace body in an inserted mode, and an adjusting mechanism is arranged in the middle of the bottom of the supporting plate. The adjusting mechanism is mounted on the bottom plate; the quick release mechanism is installed on the sides, close to each other, of the upper ends of the adjusting mechanisms, the heat preservation shell is installed in the middle of the sides, close to each other, of the quick release mechanism, the heat preservation shell is conveniently driven to be adjusted and used through the adjusting mechanisms, and the heat preservation shell is conveniently disassembled to be maintained and replaced through the quick release mechanism; and through the cooling mechanism, after the heat preservation shell is separated, spraying on the outer surface of the oil furnace main body is facilitated through a spray head, and the cooling efficiency of the oil furnace main body is improved.

The utility model belongs to the technical field of battery production equipment, and particularly relates to a battery cell preheating device. The battery cell preheating device comprises a preheating cavity, the preheating cavity is internally provided with a preheating chamber, and the side wall of the preheating cavity is provided with a feeding port and a discharging port; the rotating mechanism is arranged between the feeding hole and the discharging hole, is suitable for bearing the battery cell, and can move the battery cell into the preheating chamber from the feeding hole and move the battery cell out of the preheating chamber from the discharging hole through rotation; the microwave device is communicated with the preheating chamber, and the microwave device is used for conveying microwaves into the preheating chamber and heating the battery cell in the preheating chamber. According to the utility model, the battery cell is moved into or out of the preheating chamber through the rotating operation of the slewing mechanism, so that the preheating time can be greatly shortened, the excessive preheating can be improved, the quick start and stop can be realized, the energy consumption can be saved, the production efficiency and the product quality can be improved, and the production cost can be reduced.

The invention provides an evaporator and an air conditioning system with the evaporator. The evaporator comprises a plurality of heat exchange coil pipes, a liquid separator and a gas collecting pipe, the liquid separator and the gas collecting pipe are communicated with the two ends of the heat exchange coil pipes, and a limiting guide rod and a plurality of branch floating plugs in sliding connection with the limiting guide rod are arranged in the gas collecting pipe. Each branch floating plug is provided with a plugging position which is in contact with the outlet and forms plugging and a through-flow position which is separated from the outlet; and each branch floating plug can sequentially rise along the guide direction of the limiting guide rod under the buoyancy action of accumulated liquid at the bottom of the gas collecting pipe and is switched from the through-flow position to the plugging position so as to at least plug the lower pipe orifice in each heat exchange coil pipe from bottom to top. According to the heat exchanger, liquid refrigerants can be evenly distributed in the height direction of the heat exchange core part, on one hand, accumulated liquid in the gas collecting pipe can be slowed down, the flow resistance of the gas refrigerants can be reduced, and smooth operation of other components of a follow-up system is facilitated; and the overheating phenomenon of the upper coil pipe is improved.

A phase change cold plate for enhancing heat conduction comprises a shell, a cover plate and a phase change material, the shell and the cover plate form a closed cavity, and the closed cavity is filled with the phase change material; a clamping groove, a concave pit or a boss is arranged on the outer surface of the phase change cold plate, the clamping groove, the concave pit or the boss is used for being matched with a heating electronic component, and the heating electronic component is in close contact with the phase change cold plate. The overall heat conduction capacity and heat storage capacity of the phase change cold plate are considered, the problems of internal air heat resistance and local hot spots are solved, the overall performance of the phase change cold plate is improved, and it is ensured that the phase change cold plate meets the device temperature control requirement.

The utility model relates to the field of hotpot condiments, and discloses a hotpot condiment oil separation device which comprises a box body, a separation assembly is arranged in the box body, a feeding assembly is arranged at the top of the box body, the separation assembly comprises a filter screen fixedly connected to the interior of the box body, and an auger conveyor is connected to the interior of the filter screen in an abutting mode. And the top of the filter screen is fixedly connected with a feeding pipe, the left end of the auger conveyor is rotationally connected with a material collecting cavity, the side wall of the material collecting cavity is fixedly connected with a motor, and the bottom of the material collecting cavity is fixedly connected with a discharging pipe. According to the utility model, through the structural arrangement of the separation assembly, the auger conveyor can continuously convey the backing material separated by the filter screen and send the backing material to the material receiving cavity, and the backing material is discharged through the blanking pipe, so that the subsequent collection and treatment are facilitated, the overall working efficiency is improved, and the problem that the backing material is accumulated on the surface of the filter screen in the prior art; the filter screen is blocked, and high-efficiency filtering of the filter screen is not facilitated.

The utility model relates to the field of water heaters, and provides a connecting device and heat exchange equipment for a fluid system, the heat exchange equipment comprises the connecting device, the connecting device comprises a base, a power piece, a valve core and a first potential energy piece, the power piece, the valve core and the first potential energy piece are sequentially in power connection, the first limiting part is arranged on the base, and the second limiting part is arranged on the valve core. Rotation of the power piece and flowing of fluid are driven by each other, a base channel is formed in the base, the first limiting part and the second limiting part are matched to enable the valve element to move relative to the base along a movement path, the valve element moves to the first position to partition the base channel and enable the first potential energy piece to store potential energy, and the first potential energy piece releases the potential energy to enable the valve element to move to the second position. Therefore, the base channel is communicated, and the power piece rotates. Power is provided through the fluid, potential energy is stored through the first potential energy piece, the valve element is driven to move to switch the communication state of the base channel, the fluid is driven to flow, an electromagnetic valve and a power source do not need to be arranged, cost is low, and installation is convenient.

The utility model relates to the field of water heaters, and provides a connecting device and heat exchange equipment for a fluid system, the heat exchange equipment comprises an inlet channel, a heat exchange channel, a delivery channel, the connecting device and a heat exchanger arranged at the heat exchange channel, the connecting device comprises a base, an elastic leather film, a valve core and an elastic piece, the leather membrane is arranged at the first opening of the base, the leather membrane and the base jointly define a second channel, a first channel is further formed in the base, the valve element is connected to the leather membrane and used for sealing the communicating opening, and the elastic piece is used for making the valve element abut against the communicating opening so that the first channel and the second channel can be separated. When heat exchange equipment is a gas water heater, the connecting device is adopted, the interlayer cold water phenomenon and the interlayer hot water phenomenon can be improved, and the connecting device is of a pure mechanical structure and is low in cost, convenient to install and stable in performance.

The embodiment of the invention provides projection equipment and a low-noise temperature control method, and the method can respond to a starting instruction to detect the laser temperature of a laser light source. When the temperature of the laser is greater than or equal to a preset temperature threshold value, acquiring the running rotating speed of the heat dissipation blades; and if the operation rotating speed is the highest rotating speed, setting the backlight value of the laser light source as a target value, so that the light emitting assembly projects projection content according to the target value. Wherein the target value is smaller than a first backlight value of the laser light source when the starting instruction is received. Receiving a backlight adjusting instruction, and analyzing a second backlight value indicated by the backlight adjusting instruction in response to the backlight adjusting instruction; if the second backlight value is smaller than or equal to the target value, the backlight value of the laser light source is set to be the second backlight value, so that the light emitting assembly projects the projection content according to the second backlight value. According to the method, the overheating and noise problems of the projection equipment can be improved, the service life of the projection equipment is prolonged, and the user experience is improved.