36results about How to "Play a role in stabilizing the flow" patented technology

The invention provides a steam boiler. The steam boiler comprises an upper pot cylinder, a lower pot cylinder, a rising pipe and a downcomer, wherein the rising pipe and the downcomer are connected between the upper pot cylinder and the lower pot cylinder, and along the flowing direction of the fluid in the reducing pipe, the pipe diameter of the downcomer is continuously reduced. Due to the factthat the downcomer is continuously descended, the change of the fluid volume and the pressure continuously changed is met, so that overall pressure distribution is uniform, heat exchange is uniform, materials can be saved, and the cost is reduced.

The invention provides a steam heat exchanger. The steam heat exchanger comprises a header and a steam pipe; steady flow devices are arranged inside the steam pipe and are each of a sheet structure; the sheet structures are arranged on the cross section of the steam pipe; the steady flow devices are composed of square through holes and right octagon through holes; the length of each side of the square through holes is equal to the length of each side of the right octagon through holes; the four sides of each square through hole are the sides of four different right octagon through holes; and the four spaced sides of each right octagon through hole are the sides of four different square through holes. Compared with a steady flow device in the prior art, the steam heat exchanger with the steady flow structures further improves the steady flow effect, enhances heat transfer and is easy to manufacture.

The invention provides a steam boiler. The steam boiler comprises an upper drum, a lower drum, and an ascending pipe and a descending pipe connected between the upper drum and the lower drum; a flow stabilizing device is arranged in the ascending pipe, and is of a sheet structure; the sheet structure is arranged on the cross section of the ascending pipe; the flow stabilizing device consists of square through holes and regular octagonal through holes; the edge length of the square through holes is equal to the edge length of the regular octagonal through holes; four edges of the square throughholes are edges of four different regular octagonal through holes; and four spaced edges of the regular octagonal through holes are edges of four different square through holes. The steam boiler is provided with the new-structured flow stabilizing device; and when steam and liquid phases flow in the ascending pipe, the heat transfer is intensified, and meanwhile, the vibration of the ascending pipe is weakened to reduce the nose level.

The invention provides a design method of a steam boiler. The steam boiler comprises an upper boiler cylinder, a lower boiler cylinder, lifting pipes and falling pipes, wherein the lifting pipes and the falling pipes are connected between the upper boiler cylinder and the lower boiler cylinder. The design method comprises the steps that with the increase of the lifting pipe diameter, the lifting pipe spacing increases continuously. The change of a law is obtained by a large number of numerical simulation and experiments, and through the changes of the law, the heat transfer effect can be further improved.

The invention provides a heat exchanger system provided with a plurality of two-phase flow stabilizing devices and a pipeline of the heat exchanger system. The two-phase flow stabilizing devices are arranged in the pipeline; each of the two-phase flow stabilizing devices comprises a core body; the core body can divide two phase flow runners in the pipeline into a plurality of small runners; and the two-phase flow stabilizing devices are continuously arranged or arranged at intervals. According to the invention, the two-phase flow stabilizing devices are continuously arranged or arranged at intervals, so that the liquid phase and the gaseous phase can be separated through a plurality of stages and steps, heat transfer can be further enhanced, and the effects of vibration and noise reduction are realized.

The invention provides a gas-liquid two-phase flow multi-tube 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. The heat exchange tubes are connected to the tube sheets at both ends, and the vapor phase in the vapor-liquid two-phase flow can be condensed into a liquid phase during the heat exchange process. A body and a shell, the core is arranged in the shell, the shell is connected and fixed with the inner wall of the heat exchange tube, and the core is composed of several adjacent tubes. 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 present invention provides a gas-liquid two-phase flow multi-tube shell-and-tube heat exchanger, which includes a shell, 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, The vapor phase in the tube-sheet vapor-liquid two-phase flow at both ends of the heat exchange tube can be condensed into a liquid phase during the heat exchange process. The heat exchange tube is equipped with a flow stabilization device for shock and noise reduction. The same heat exchange tube A plurality of flow stabilizing devices are provided, and the distance between adjacent flow stabilizing devices gradually increases along the flow direction of the fluid in the heat exchange tube. The invention provides a method of changing the length of the flow stabilizing device, when the gas-liquid two-phase flow exists in the pipeline, the vibration of the pipeline can be weakened to the greatest extent, the noise level can be reduced, the flow resistance can be reduced, and the uniformity of heat exchange can be improved.

The invention provides an evaporator system. The evaporator system comprises an evaporator and a steam utilization device, steam generated by heating in the evaporator enters the steam utilization device through a steam inlet pipe, and after sufficient heat exchange and utilization in the steam utilization device, the steam is circularly mixed into the evaporator to be heated; the evaporator comprises a steam chamber, and an electric heating device is arranged in the steam chamber; and a water level sensor is arranged in the steam chamber, the water level sensor and an electric heater are in data connection with a controller, and the controller automatically controls the heating power of the electric heater according to the measured water level in the steam chamber. By means of the arrangement, on one hand, dry burning of the electric heating device, damage to the electric heating device and safety accidents caused by too low water level are avoided, and on the other hand, too low steam output rate caused by too large water amount in the steam chamber due to too high water level is avoided.

The invention provides a steam heat exchanger. The steam heat exchanger comprises a collecting box and steam pipes, the steam pipes extends upwards from the collecting box, the collecting box is provided with a steam inlet and a condensed water outlet, the steam enters the collecting box, then flows upwards from the collecting box and enters the steam pipes, the steam pipes and the outside are subjected to heat exchange to form condensed water, the condensed water returns to the collecting box under the action of gravity, and then flows out from a water returning opening in the lower part of the collecting box; a plurality of steam pipes are arranged, a communicating pipe is arranged between at least two adjacent steam pipes, a plurality of communicating pipes are arranged between the adjacent steam pipes from the lower parts of the steam pipes to the upper parts of the steam pipes, and the distance between the adjacent communicating pipes is continuously reduced from the lower parts of the steam pipes to the upper parts of the steam pipes. Due to the fact that along with flowing upward of the fluid, the fluid continuously releases heat, along with continuously heat releasing of the fluid, heat releasing in different heat collecting pipes gets more and more ununiformly, by virtue of above arrangement, the pressure balance can be achieved as soon as possible in the fluid flowingprocess.

The invention provides a two-phase flow shell and tube heat exchanger and a stabilizing device thereof. The two-phase flow shell and tube heat exchanger comprises the sleeve type two-phase flow stabilizing device arranged on a fluid inlet pipe and / or a fluid outlet pipe of the heat exchanger. The two-phase flow stabilizing device comprises a core body, the core body comprises a plurality of concentric pipes and a plurality of fins, and the fins are connected with the adjacent concentric pipes. According to the two-phase flow shell and tube heat exchanger and the stabilizing device thereof, the passive two-phase flow stabilizing device with vibration and noise reduction functions can divide two-phase fluid into a liquid phase and a gas phase under the condition of not relying on external power or power sources, the liquid phase is divided into small liquid balls, the gas phase is divided into small bubbles, liquid phase back flowing is prohibited, smooth flowing of the gas phase is facilitated, the function of stabilizing the flow rate is achieved, and the vibration and noise reduction effects are achieved.