97results about How to "Avoid or reduce short circuit" patented technology

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.

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.

The invention provides a temperature-controlled trough solar heat collection system, comprising 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, and the heat collection tube is A plurality of pipes are connected in parallel, and the lower part of each collector tube corresponds to a reflector. It is characterized in that a temperature sensor is arranged at the outlet of each collector tube to measure the fluid temperature at the outlet of the collector tube. The control system is connected with the temperature sensor data, according to the temperature sensor The detected data judges the heating condition of each collector tube. The present invention can find out the heat collecting tube with low outlet temperature through the above-mentioned control system, check this, find out the cause of the problem, and facilitate improvement. The control system can also automatically remind that the outlet temperature of the collector tube is lower than the normal value.

The invention provides a solar steam generator. The solar steam generator comprises a reflector and a steam pocket, wherein the steam pocket is positioned at the focal point of the reflector, the reflector is used for reflecting solar energy to the steam pocket and is used for heating water in the steam pocket, and a heat pipe is arranged in the steam pocket; the heat pipe comprises a header and heat dissipation ends; the solar steam generator is characterized in that the number of the heat dissipation ends is multiple, the bottom of a collection box is connected to the inner wall of the steampocket, and the heat dissipation ends are of a square structure; and the heat dissipation ends are annularly distributed at the center point of the wall surface of the upper part of the collection box. According to the solar steam generator with a novel heat pipe structure, due to the fact that the square heat pipe is arranged at the bottom of the steam pocket, the heat transfer speed of the solar energy is increased through the characteristic that the heat transfer speed of the heat pipe is high, and the heat absorption capacity can be further met.

The invention provides a trough type solar heat collector system. The trough type solar heat collector system comprises heat collectors, wherein each heat collector comprises heat collecting pipes andreflecting mirrors; the heat collecting pipes absorb solar energy to heat water inside; a plurality of stabilizing devices are arranged in each heat collecting pipe; and the side length of a square is smaller and smaller in the flowing direction of fluid in the heat collecting pipes. Through the arrangement, the heat exchange effect can be improved to the greatest extent.

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.