4results about How to "Price advantage" patented technology

The combustion chamber of the air cooling structure comprises a combustor and a combustion chamber frame, the upper portion and the lower portion of the combustion chamber frame are open, the periphery of the combustion chamber frame is provided with side walls, the combustor is arranged at the bottom of the combustion chamber frame, and the opposite side walls of the combustion chamber frame are each composed of three layers of structural plates. The other opposite side wall of the combustion chamber frame is composed of two layers of structural plates, a gap between every two adjacent structural plates forms an air channel, each layer of structural plate is provided with a ventilation opening, and the ventilation openings in every two adjacent structural plates are arranged in a staggered mode. A coil pipe of the heat exchanger is omitted, a combustion chamber on the lower portion of the heat exchanger is changed into the combustion chamber of an air cooling structure, the phenomena of coil pipe corrosion and combustion chamber wall corrosion can be effectively avoided, the risks of water leakage, flue gas deterioration, flame overflow and the like are reduced, and the problem that the surface temperature of the combustion chamber is too high due to the fact that the coil pipe is omitted can be solved.

The invention provides an electronic paper TFT GOA drive design scheme, and relates to the technical field of electronic information, the electronic paper TFT GOA drive design scheme comprises a gate shift register integrated on a TFT, the gate shift register is composed of ten transistors and two capacitors, and each transistor and each capacitor form a logic circuit through a specific line connection mode. A gate shift register formed by ten transistors and two capacitors forms a GOA structure, the distribution and connection relation of the transistors and the capacitors in the GOA structure follow a specific design rule, and in a traditional electronic paper TFT non-GOA design scheme, the gate shift register is integrated on a DDIC, so that the DDIC is large in size and small in output quantity, and the production cost is indirectly increased. According to the invention, the grid shift register is integrated on the TFT, so that the DDIC size is greatly reduced. By taking 960S * 680G resolution as an example, the size of the GOAIC can be reduced by 38.5% compared with that of a non-GOAIC, and the output quantity of DDICs can be increased under the condition that the size of a wafer is fixed, so that the purchase cost of the DDICs is remarkably reduced.

The preparation process comprises the following steps: adding a formaldehyde solution into a reaction kettle, adjusting the pH value of the formaldehyde solution by using sodium hydroxide, adding urea for the first time, starting a stirrer, carrying out a heating reaction, increasing the reaction temperature, adding urea for the second time, carrying out a stirring reaction, increasing the temperature, and carrying out cooling, so as to obtain the high-flame-retardant environment-friendly urea-formaldehyde resin adhesive. After the reaction is finished, adding the modified aluminum triphosphate formaldehyde trapping agent into the reaction kettle, uniformly stirring, cooling to room temperature, and discharging, so as to obtain the high-flame-retardant and environment-friendly urea-formaldehyde resin adhesive. The preparation process is simple, the obtained urea-formaldehyde resin adhesive is low in price, basic adhesion requirements of shaving boards can be met, release of formaldehyde of the shaving boards can be reduced, flame retardance of the shaving boards can be improved, and environmental protection and safety of the shaving boards are greatly improved.

The utility model provides a sofa bed. The sofa bed includes lower frame and upper frame, the upper frame passes through electric moving mechanism and is installed on the lower frame, the side top of lower frame is fixedly installed with outer frame, the inboard of outer frame is fixedly installed with steel pipe, is provided with the sliding support mechanism for supporting the upper frame on the steel pipe. The utility model provides a sofa bed solves the existing electric sofa bed both sides for supporting the track of upper frame because of using the steel main rail in addition steel ball design, after the operation aging or the adhesion of foreign matters, easy to appear the situation such as jam, abnormal sound, drop ball, and then influence the service life technical problem.