35results about How to "Good temperature uniformity" patented technology

The invention discloses a heat exchange roller with multi-layer built-in flow channels. The heat exchange roller comprises a roller body; a liquid inlet and a liquid outlet are formed in the roller body; at least two flow channels are arranged in the roller body; the at least two flow channels are sequentially arranged from inside to outside; the at least two flow channels are communicated with each other to form a liquid channel from inside to outside; the flow channel on the innermost side is communicated with the liquid inlet; and the flow channel on the outermost side is communicated with the liquid outlet. On one hand, heat exchange liquid gradually flows towards the roller wall from inside, heat exchange between the heat exchange liquid and the roller body is gradually diffused towards the roller wall from inside, and the problem that the local temperature of a single-layer flow channel at a liquid inlet and a liquid outlet is too high or too low is solved. By means of the heat exchange liquid flowing mode, the width of a film product can be increased to be the same as the length of the roller body, and no edge needs to be reserved. On the other hand, heat exchange between the heat exchange liquid and the roller body is gradually diffused to the roller wall from inside, heat exchange between the roller wall and the heat exchange liquid is gentle, the temperature uniformity of all positions of the roller wall is good, and the quality of a film product is improved.

The invention discloses an intelligent high temperature thermal shaping machine for ultra intense polymer fiber. The machine comprises an electrical heater, thermoscopes, an electric control device, a shell, and adjustable feet, and further comprises an inner cavity body, a left end expansion joint, a right end expansion joint, a left end seal, a right end seal and a port sealing device. Inner holes of the left end expansion joint and the right expansion joint are internally and respectively penetrated and covered by the two ends of the inner cavity body, and the two ends can move in the inner holes. The electrical heater has flat shaped structure and is longitudinally arranged on the upper surface and the lower surface of the inner cavity body and transversely arranged on the two side faces of the inner cavity. The thermoscopes are arranges above the inner cavity body along the width direction in two lines; probes of one line of the thermoscopes are inserted into the inner cavity body, and the probes of the other line are contacted with the surface of the inner cavity body. Insulation cotton is filled into the space between the inner cavity body and the external side board arranged on a machine frame. The machine can meet the technique requirement of high temperature thermal shaping for tow in the production process of aramid and save energy.

The invention discloses an automobile engine heat dissipating device based on oscillatory flow heat pipes, which can cool the cooling circulating water of an automobile engine effectively. The device comprises a water tank and at least one set of oscillatory flow heat pipes. The water tank is provided with a water inlet and a water outlet. One end of the oscillatory flow heat pipe is arranged in a heat flow body channel in the water tank and the other end thereof contacts with outside air. The invention has the advantages of high thermal efficiency, good uniform temperature property, small size, quick thermal response, convenient installation, simple maintenance, long service life, small resistance and loss, less material consumption and the like.