3results about How to "Difficult to maintain" patented technology

The utility model belongs to the technical field of building decoration, and particularly relates to an assembly type skirting line closing-up structure which comprises a bearing piece, the cross section of the bearing piece is arranged to be in an L shape, first slopes are arranged at the two ends of the bearing piece, the dip angle of each first slope is 45 degrees, first positioning grooves are formed in the first slopes, and the first positioning grooves are matched with the first positioning grooves. A splicing piece is inserted into the first positioning groove and is connected with a skirting line; a protection plate is clamped to the corner of the outer side of the bearing piece. According to the structural design of the skirting line, the mode that the positioning strips and the positioning columns are combined is adopted, and the connection stability between the skirting line and the bearing piece is enhanced through the design; by means of the two centrosymmetric positioning columns and the corresponding inserting grooves, it is guaranteed that the splicing piece and the skirting line are in accurate butt joint, and displacement or looseness in long-term use is effectively prevented; by means of the stable connection mode, the problem that gaps are easily formed in corners and corners of a traditional skirting line is solved, and the overall attractiveness and continuity of the decoration effect are kept.

The utility model provides a quick self-locking structure, which comprises a base detachably mounted on a mounting body; the self-locking mechanism comprises a self-locking part arranged in the middle of the base and a lock cylinder structure rotatably mounted on the self-locking part; the self-locking part comprises a self-locking through hole formed perpendicular to the base, a limiting clamping groove extending outwards from the self-locking through hole in the length direction of the base, a first guide table and a second guide table, wherein the first guide table and the second guide table are in a step shape. The first guide table is higher than the second guide table, and the first guide table and the second guide table are in smooth transition and connected with the limiting clamping groove. The lock cylinder structure comprises a lock cylinder and a lock catch, wherein the lock cylinder sequentially penetrates through the self-locking part and the base through the self-locking through hole, and the lock catch is arranged at the upper end of the lock cylinder and keeps rotating synchronously with the lock cylinder. According to the rapid self-locking structure, the lock catch is matched with the multiple guide faces which are staggered in height, the structure is simple, operation is convenient and fast, the problem that a self-locking structure is not easy to maintain is solved, and meanwhile the self-locking efficiency is improved.

This invention discloses a reactor for water-gas shift reaction and its application. The reactor is suitable for water-gas shift reaction processes containing gaseous and liquid reactants. A reaction chamber is set inside a hollow, sealed cylinder formed by the reactor walls. The reaction chamber is a hollow, sealed chamber surrounded by porous material as its wall surface. A gaseous reactant inlet pipe penetrates the reactor wall and extends into the upper part of the reaction chamber, a liquid reactant inlet pipe penetrates the reactor wall and extends into the cylinder, and a reaction product outlet pipe penetrates the reactor wall and extends into the lower part of the reaction chamber. The catalyst for the water-gas shift reaction is packed in the reaction chamber. The water-gas shift reaction can be carried out under near-isothermal conditions. Water in the liquid reactant does not need to be pre-vaporized and is directly fed into the reactor in liquid form, saving the energy consumption required to transport the corresponding amount of water vapor. Simultaneously, a high molar ratio of water to carbon monoxide is maintained within the reactor, promoting complete conversion of carbon monoxide.