170results about How to "Achieve steady flow effect" patented technology

The invention provides a rod-fin type loop heat pipe with varying sizes. The rod-fin type loop heat pipe includes an evaporation header, a condensation header, rising pipes and return pipes, flow stabilizing devices are arranged in the rising pipes, the flow stabilizing devices each include a core body and an outer shell, the core bodies are arranged in the outer shells, the outer shells are connected and fixed to the inner walls of the rising pipes, the core bodies each include a plurality of radial rods extending from the centers of the core bodies to the radial direction, and a plurality offins extending downwards from the radial rods are arranged on each radial rod; and the core bodies each include a core column arranged at the center of each core body, one ends of the radial rods arefixed into the core columns, and from the core columns of the rising pipes to the radial extension direction, the size of the fins on the same radial rods is getting larger and larger. According to the rod-fin type loop heat pipe with the varying sizes, the size of the fins on the rising pipe walls is increased, so that the ability to cut vapor phases and liquid phases near the pipe walls is enhanced. The ability to cut near the pipe walls is focused to be strengthened, and noise reduction and vibration damping can be targeted for specific situations, so that the effects of noise reduction and vibration damping are further achieved, and meanwhile, heat transfer can be further enhanced.

The invention provides a tubular heat exchanger. The tubular heat exchanger comprises a shell, heat exchange tubes, a tube pass inlet tube, a tube pass outlet tube, a tube pass inlet connecting tube and a tube pass outlet connecting tube. A heat exchange tube bundle formed by the multiple heat exchange tubes which are arranged in parallel is connected to a front tube plate and a rear tube plate. The front end of the front tube plate is connected with a front sealing head. The rear end of the rear tube plate is connected with a rear sealing head. The tube pass inlet tube is arranged on the rearsealing head. The tube pass outlet tube is arranged on the front sealing head. The tube pass inlet connecting tube and the tube pass outlet connecting tube are both arranged on the shell. Fluid of two-phase flow enters through the tube pass inlet tube, carries out heat exchange through the heat exchange tubes, and goes out of the tube pass outlet tube. The fluid in the heat exchange tubes is thegas and liquid two-phase flow in which the gas phase is insoluble or slightly soluble gas, and in other words, the gas will not dissolve in the liquid in the process of heat exchange. The ratio of thelength L of each heat exchange tube to the diameter of the shell of the heat exchanger ranges from 6 to 10. The tubular heat exchanger is a gas and liquid two-phase flow heat exchanger of a novel structure.

The invention provides a trough solar heat collection system, which includes a heat collector, the heat collector includes a heat collection tube and a reflector, the heat collection tube absorbs solar energy, and heats the water in the heat collection tube. It is characterized in that the heat collection tube is set A plurality of stabilizing devices, along the flow direction of the fluid in the heat collecting tube, the spacing between the stabilizing devices becomes smaller and smaller. The present invention can maximize the heat exchange effect through the above arrangement.