6results about How to "Avoid high internal temperatures" patented technology

The invention provides a control method and device of a fuel cell system and a computer readable storage medium. The fuel cell system comprises a proton exchange membrane fuel cell, and the method comprises the following steps: obtaining target information, the target information comprising at least one of a cooling liquid level of the proton exchange membrane fuel cell and a cooling liquid temperature difference of an inlet and an outlet of the proton exchange membrane fuel cell; according to the target information, whether preset conditions are met or not is determined, and the preset conditions comprise at least one of the following conditions that the liquid level of cooling liquid is lower than a preset liquid level value and the cooling liquid temperature difference is larger than first preset temperature; under the condition that the preset condition is met, the actual output power of the proton exchange membrane fuel cell is at least controlled to be not larger than preset power, and the preset power is smaller than the rated output power of the proton exchange membrane fuel cell. The fuel cell system at least solves the problem that in the prior art, the internal temperature of a fuel cell system is high, so that a proton exchange membrane fuel cell is abnormal easily.

The utility model relates to the technical field of transparent nylon granulation equipment, in particular to a water cooling assembly and transparent nylon granulation equipment, the water cooling assembly comprises a water tank body, a refrigerator, a sealing door, a pipe orifice, a radiating pipe and a water pump, the refrigerator is arranged on the surface of the water tank body, and the sealing door is arranged on the surface of the water tank body; a sealing door rotationally connected through hinges is arranged on the side, close to the refrigerator, of the surface of the water tank body. The device has the beneficial effects that a water pump is started, so that the water pump can pump cooling water in the water tank body, and the cooling water flows on the surface of the extruder body through a heat dissipation pipe, so that the cooling water can quickly exchange heat in the extruder body; furthermore, the temperature in the extruder body can be quickly brought out through the cooling water, so that the situation that the internal temperature is relatively high when the transparent nylon granulation equipment is used is avoided, and the transparent nylon granulation equipment is more convenient when nylon particles are prepared.

The utility model discloses a high-precision rotary table with a positioning structure, which belongs to the technical field of high-precision rotary tables and comprises a rotary table body, support legs are fixedly mounted at the bottom of the rotary table body, a heat dissipation component is arranged on the inner wall of the rotary table body, a travel groove is arranged on the top surface of the rotary table body, and the positioning structure is arranged in the travel groove. A travel groove is formed in the rotary table body, a positioning assembly is arranged on the inner wall of the travel groove and comprises a forward and reverse motor, a chassis and a bidirectional threaded rod, the forward and reverse motor is fixedly installed on the outer wall of the rotary table body, a worm is fixedly installed at one end of an output shaft of the forward and reverse motor, and the chassis is fixedly installed on the inner wall of the bottom of the rotary table body; according to the clamping device, due to the arrangement of the positioning assembly and the design, the operation process during workpiece clamping is effectively simplified, multiple steps do not need to be completed, the working efficiency is greatly improved, and the use effect is good.

A portable electric meter box with a dust removal function disclosed by the present invention comprises a box body, the right side of the box body is provided with a dust removal assembly, the dust removal assembly is used for dust removal, the front and rear sides of the bottom of the inner wall of the box body are both provided with first sliding grooves, and the tops of the two first sliding grooves are slidably connected with a telescopic box. And second sliding grooves are formed in the front side and the rear side of the bottom of the inner wall of the telescopic box correspondingly, limiting blocks are slidably connected into the two second sliding grooves correspondingly, and the bottoms of the two limiting blocks are fixedly connected with the inner wall of the box body correspondingly. A second sliding groove in the bottom of the telescopic box, a limiting block in sliding connection with the interior of the telescopic box, a fixing block on the telescopic box and a groove in the box body achieve the effect that the telescopic box is pulled to adjust the internal space, and the problem that an existing electric meter box cannot meet the requirement for simultaneous installation of multiple electric meters is solved.

An adjustable drying duct structure for packaging printing includes a drying chamber. The drying chamber has multiple hinges on its outer walls at both ends, each hinge having a door. Multiple air inlet valves are installed on the diversion pipe. The diversion pipe of this adjustable drying duct structure for packaging printing is connected to the drying machine's heating system via a first air inlet pipe, and to the drying ports via a first connecting pipe and air inlet valves. This allows control over the number of drying ports based on the drying chamber's operating status, ensuring efficient preheating while preventing excessive airflow that could lead to overheating. The fixed cover of the device has corresponding spiral holes, and a perforated plate is screwed to the fixed cover to form a spiral locking structure. This allows the perforated plate to filter hot air while facilitating periodic cleaning of the inside of the fixed pipe using its outer brush.