4results about How to "Fast patching" patented technology

A repairing device for a pipeline compensator comprises a shell, a fixed flange, a rib plate, a packing, a filler flange, a movable flange, a bolt, a nut, a water escape valve and an exhaust valve, the shell, the fixed flange, the filler flange and the movable flange are each of a structure with the middle separated, the bottom of the shell passes through the pipeline water escape valve, and the exhaust valve is arranged at the top of the shell; the fixed flange is welded together with one end of the shell through a rib plate, the packing flange is welded together with the other end of the shell, the packing is arranged in the packing box, the movable flange is located on the inner side of the packing flange, the movable flange is connected with the packing flange through a bolt and a nut, the movable flange is provided with a pressing ring, and the pressing ring abuts against the packing. The outer diameter of the hold-down ring is smaller than the inner diameter of the packing box. Under the condition that heat supply is not stopped, a water-leaking pipeline compensator or a water-leaking heat supply pipeline can be repaired, heat supply is not affected, and the repairing speed is high.

This invention provides a method for the tiered utilization of retired batteries from energy storage power stations, relating to the fields of electrochemical energy storage and the tiered utilization of retired batteries. The steps of this invention are as follows: S1, rapidly assess and classify the consistency of retired batteries, eliminating unusable batteries; S2, perform grouping operations on the remaining retired batteries to obtain the optimal solution; S3, assemble the retired batteries into new battery packs according to the optimal solution; S4, perform online self-healing equalization control operations on the battery packs; S5, adjust the self-healing strategy parameters; S6, track and monitor the self-healed batteries. The beneficial effects are: voltage and internal resistance are corrected to avoid interference from ambient temperature; the objective optimization function can improve grouping efficiency; the tiered self-healing strategy improves battery repair speed; self-healing strategy parameter updates ensure that the selected parameters are suitable for the corresponding batteries; the tiered tracking strategy can reduce monitoring costs; and long-term and short-term evaluations can avoid the problem of false repair successes.

The utility model discloses a road maintenance device for road construction, which relates to the technical field of road repair and comprises an asphalt tank, a control valve is fixed on the side surface of the asphalt tank, the other end of the control valve opposite to the asphalt tank is connected with a discharge pipe, and the upper end of the control valve is rotatably connected with a transmission plate. The upper end of the transmission plate is rotationally connected with a linkage rod, the other end, opposite to the transmission plate, of the linkage rod is rotationally connected with a movable plate, and a locking column is fixed to the surface of the asphalt tank. Troubles caused by small-range movement of the maintenance device are avoided, and the crack repairing speed is increased.

This application relates to the technical field of rail transit equipment repair, specifically disclosing a repair material, its preparation method, and its application. The repair material disclosed in this application specifically includes the following components: cement, H60 type high-strength non-shrink grout, modified diatomaceous earth, acrylic emulsion, defoamer, thickener, water-repellent agent, film-forming aid, and water. The modified diatomaceous earth is prepared by using a 0.2-0.8 wt% phosphoric acid aqueous solution as a solvent and ethyl cellulose as a modifier at a temperature of 80-100℃, followed by modification of the diatomaceous earth; the weight ratio of ethyl cellulose to diatomaceous earth is (6-8):(1-3). This application also discloses the preparation method of the above-mentioned repair material. Using the repair material disclosed in this application to repair track ventilation ducts can improve the appearance quality of the track top ventilation ducts, and the repaired track top ventilation ducts have good bonding strength, impermeability, water resistance, and aging resistance.