115results about How to "Realize the effect of vibration reduction and noise reduction" patented technology

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 gas-liquid two-phase flow shell-and-tube heat exchanger, which includes a shell, and the two ends of the shell are respectively provided with heads, and the connection position between the head and the shell is set with a tube plate, and the heat exchange tube Connect the tube sheets at both ends, the vapor phase in the vapor-liquid two-phase flow can condense into a liquid phase during the heat exchange process, and the vapor-liquid two-phase flow flows in the tube side, and a flow stabilization device is installed in the heat exchange tube, and the stabilization The flow device includes a central rod arranged along the central axis of the heat exchange tube and a plurality of radial rods extending radially along the central rod, and a plurality of radial rods are arranged on the radial rods in the direction opposite to the fluid flow Extended fins having tips extending in opposite directions of fluid flow. The invention provides a heat exchanger of a flow stabilizing device with a new structure, which can enhance heat transfer, weaken the vibration of the pipeline and reduce the noise level when there is a vapor-liquid two-phase flow in the pipeline.

The invention provides a hot pipe. The hot pipe comprises an evaporation collector, a condensation collector, a rising pipe and a return pipe; the rising pipe is communicated with the evaporation collector and the condensation collector, the evaporation collector is located at the lower portion, the condensation collector is located at the upper portion, and fluid absorbs heat and evaporates in the evaporation collector, enters the condensation collector through the rising pipe, and condensates after being subjected to heat transfer in the condensation collector; the condensed fluid returns tothe evaporation collector through the return pipe; flow stabilizing devices are arranged in the rising pipe, small holes are formed in adjacent through holes, and communication of the through holes is achieved through the small holes. Through the formation of the small holes, it can be guaranteed that the adjacent through holes are communicated with one another, pressure among the through holes can be made uniform, so that the fluid of a high-pressure flow channel flows to low pressure; meanwhile, a liquid phase and a gas phase can be further separated when the fluid flows, and stabilizationof two-phase flowing is further promoted.

The invention provides a shell-and-tube heat exchanger comprising a shell. Sealing heads are arranged at the two ends of the shell, pipe plates are arranged at the connection positions of the sealingheads and the shell, a heat exchange pipe is connected with the pipe plates at the two ends, a gas phase in gas-liquid two-phase flow is insoluble or poorly-soluble gas, in other words, the gas cannotbe dissolved in liquid in the heat exchange process, a separating device is arranged in the heat exchange pipe and is of a sheet-like structure, and the sheet-like structure is arranged on the crosssection of the heat exchange pipe; and the separating device is composed of square through holes and regular octagonal through holes, the side length of the square through holes is equal to the side length of the regular octagonal through holes, the four sides of each square through hole are the sides of four different regular octagonal through holes, and the four mutually-spaced sides of each regular octagonal through hole are the sides of four different square through holes. According to the heat exchanger with the separating device of the new structure, when the gas-liquid two-phase flow exists in the pipe, compared with the background art, heat transfer is further enhanced, vibration of the pipe is weakened, and the noise level is reduced.