92results about How to "Avoid or reduce short circuit" patented technology

The embodiment of the invention provides a display panel and a display device, and belongs to the technical field of display, the display panel comprises a substrate, a touch control wire, a signal wire, a packaging layer and a blocking part arranged in a non-display area, the blocking part comprises a first blocking part and a second blocking part, and the packaging layer covers the first blocking part and at least extends to the position between the first blocking part and the second blocking part; the substrate comprises via holes, the via holes are located in the side, away from the display area, of the edge of the packaging layer, orthographic projections of the via holes and the packaging layer on the substrate are not overlapped, and at least part of the touch wires are electricallyconnected with the signal wires through the via holes; the implementation difficulty of the via hole process is reduced, short circuits caused by photoresist residues between the adjacent touch control wires are reduced, the quality of the display panel is improved, and the user experience is improved.

The invention provides a power plant boiler flue gas waste heat utilization system. The power plant boiler flue gas waste heat utilization system comprises a plurality of parallel heat pipes, a flue gas passage and an air passage, the heat pipes comprise evaporating ends and condensing ends, and the condensing ends are formed in the air passage; the evaporating ends are formed in the flue gas passage; the evaporating ends absorb waste heat of flue gas in the flue gas passage, and the heat is transferred to air in the air passage through the condensing ends; and the preheated air enters a boiler furnace for combustion supporting, and flow uniformizing pipes are arranged between the at least two adjacent heat pipes. According to the power plant boiler flue gas waste heat utilization system,a waste heat utilization device with a novel type structure is provided, and by arranging the flow sharing pipes between the heat pipes, evenness of the pressure, even distribution of the fluid flow and even distribution of fluid moving resistance in all the heat pipes are guaranteed.

The invention provides a power station boiler waste heat utilization system capable of intelligently controlling and utilizing waste heat. The system comprises an air preheater and a heat accumulator,the system further comprises a central controller. The central controller is in data connection with an air preheater valve and a heat accumulator valve, a third temperature sensor is arranged at theposition of a flue gas inlet of the air preheater, and the central controller automatically controls the valve opening of the air preheater valve and the valve opening of the heat accumulator valve according to the temperature detected by the third temperature sensor. Through the operation, when the temperature of flue gas is high and the generation requirement of preheated air is met, redundantheat is stored through the heat accumulator, and when the temperature of the flue gas is low, more flue gas can enter the air preheater to be used for preheating the air, so that the requirement of the preheated air is met, and meanwhile, energy is saved.

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 design method for a steam boiler. The steam boiler comprises an upper boiler cylinder, a lower boiler cylinder, an ascending pipe and a descending pipe, wherein the ascending pipe and the descending pipe are connected between the upper boiler cylinder and the lower boiler cylinder, and flow stabilizing devices are arranged in the ascending pipe. The design method comprises the following step that along with the increase of the pipe diameter of the ascending pipe, the distance between the adjacent flow stabilizing devices is continuously reduced. According to the provided design method for the steam boiler with the flow stabilizing devices with novel structures, the boiler which is designed by using the method has the advantages that when the steam and liquid two phases flow in the ascending pipe, the heat transfer is enhanced, meanwhile, the vibration of the ascending pipe is weakened, and the noise level is reduced.

The invention provides a steady flow evaporator. The steady flow evaporator comprises an inlet header, an outlet header, and a heat exchange component connected between the inlet header and the outletheader, wherein the inlet header and the outlet header are respectively connected with a steam inlet pipe and a condensate outlet pipe; the steam inlet pipe of the inlet header is internally providedwith a flow stabilizer, and the flow stabilizer has a sheet structure; the sheet structure is arranged on the cross section of the steam inlet pipe; the flow stabilizer is formed by a square structure and a regular octagonal structure, so that a square through hole and a regular octagonal through hole are formed. The flow stabilizer with the novel structure is adopted, namely, a flow stabilizer in a loop heat pipe is subjected to field transfer and is applied to an inlet pipe at an evaporation end of the loop heat pipe, so that a water hammer phenomenon caused by the space expansion when a steam-water mixture enters the inlet header can be reduced.

The invention provides a solar steam generator which comprises a reflector and a steam drum. The steam drum is located in a focal position of the reflector, the reflector reflects solar energy to thesteam drum for heating water in the steam drum, a heat pipe starting to stretch upward from the bottom of the steam drum is arranged in the steam drum, a separating device is arranged in the heat pipe, the separating device is of a sheet structure, and the sheet structure is arranged on a cross section of the heat pipe; the separating device is composed of a square through hole and a regular octagonal through hole, the length of side of the square through hole is equal to that of the regular octagonal through hole, four sides of the square through hole are separately four different sides of the regular octagonal through hole and four isolated sides of the regular octagonal through hole are separately four different sides of the square through hole. The solar steam generator further improves the flow stabilizing effect, strengthens heat transfer, and is simple to manufacture.

The invention provides a solar steam generator. The solar steam generator comprises a reflecting mirror and a steam pocket, wherein the steam pocket is positioned on a focus position of the reflectingmirror; the reflecting mirror is used for reflecting solar energy to the steam pocket for heating water in the steam pocket; the steam pocket comprises a water inlet and a steam outlet; a flow sensoris arranged on a steam outlet pipeline for measuring steam flow produced within unit time; an electric heater is arranged in the steam pocket; the flow sensor, the electric heater and the controllerare in data connection; the controller automatically controls heating power of the electric heating device according to steam flow data generated within unit time and measured by the sensor. The solarsteam generator can regulate electric heating amount according to steam amount generated by the steam generator, guarantees generated amount of steam to be constant, avoids too great amount or too small amount, avoids insufficient steam amount or waste, and can save waste heat energy.

A design method of a loop heat pipe comprises an evaporating portion, a condensing portion, a heat insulating portion and a backflow portion, wherein the heat insulating portion and the backflow portion are connected with the evaporating portion and the condensing portion; fluid absorbs heat and evaporates in the evaporating potion, and enters the condensing portion through the heat insulating portion; after exchanging heat in the condensing portion, the fluid is condensed; the condensed fluid returns to an evaporating header through a backflow pipe; the condensing portion comprises a plurality of condensing pipes which are of a parallel structure in parallel connection; the distance between adjacent separating devices is S1, and the side length of a square is L1; each condensing pipe is asquare cross section; the side length of each condensing pipe is L2; and the interval between the centers of adjacent cooling pipes is S2. The design method for the condensing pipe interval of the loop heat pipe is put forwards, heat transfer is strengthened, meanwhile vibration of heat absorbing pipes is weakened, and the noise level is lowered.

The invention provides a solar water heater. A heat collector is included and comprises heat collecting pipes and a water tank. Each heat collecting pipe comprises an evaporation end and a condensation end, wherein the condensation end is arranged in the water tank, the evaporation end absorbs solar energy, the condensation end is used for transmitting heat into water in the water tank, and the condensation end is located at the upper portion of the evaporation end. From the lower portions of the heat collecting pipes to the upper portions of the heat collecting pipes, a plurality of flow homogenizing pipes are arranged between the adjacent heat collecting pipes, the adjacent heat collecting pipes are in communication. At the evaporation ends, from the lower portions of the heat collectingpipes to the upper portions of the heat collecting pipes, the diameters of the flow homogenizing pipes are constantly increased. According to the solar water heater, since fluid constantly absorbs heat along with upward flowing of fluid, along with constant heat absorbing of the fluid, the pressures in the different heat collecting pipes are more uneven, and through the above arrangement, it canbe guaranteed that pressure balance can be reached as fast as possible in the fluid flowing process.