49results about How to "Reduce vertical load" patented technology

The invention relates to a gas-fired hot water boiler air circulation energy saving system which comprises a boiler body, two burners, a flue, a chimney, energy savers, a water-cooling type condenser, a secondary air type condenser and a primary air type condenser, wherein the two burners arranged at intervals in an up-and-down manner are mounted at one end of the boiler body; a flue gas outlet is formed at the other end of the boiler body, and is in sealing connection with the flue; an outlet of the flue is connected to the upright chimney; the energy savers sequentially arranged in a two-stage manner are mounted in the flue between the boiler body and the chimney; the chimney is provided with the water-cooling type condenser, the secondary air type condenser and the primary air type condenser from bottom up sequentially; an air blower is communicated with and mounted at one side of the lower part of the chimney; and an exhaust outlet of the air blower is communicated with air inlets of the burners of the boiler body through sealed pipelines. The gas-fired hot water boiler air circulation energy saving system operates stably, is safe and reliable, has strong output, is high in efficiency and low in exhaust gas temperature, reaches flue gas emission indexes, and meets the requirements of market development better.

The invention relates to a structural part of a sanitation truck, in particular to a liftable sucker mechanism of a dust collection vehicle. The liftable sucker mechanism of the dust collection vehicle comprises ascending / descending drive mechanisms, a sucker body and an auxiliary walking mechanism; the ascending / descending drive mechanisms are mounted on a chassis beam, the drive ends of the ascending / descending drive mechanisms are arranged downwards and connected with the sucker body through connection pieces, the auxiliary walking mechanism is fixed to the chassis beam and located on the front side of the sucker body in the walking direction, and the sucker body is connected with the auxiliary walking mechanism. The liftable sucker mechanism of the dust collection vehicle has the advantages that the mechanism is simple in structure and convenient to operate and use, and the sucker device is hung flexibly, so that when the sucker meets a highly protruding obstacle, the collision force can be effectively buffered, collision force is dispersed to a large degree, the situation that the sucker is collided and damaged is avoided, good traction force is achieved, and stability of the sucker in the dust collection process is maintained.

The invention discloses a steel column concrete root deep water foundation structure and a construction method for the steel column concrete root deep water foundation structure. The steel column concrete root deep water foundation structure comprises an upper steel column and lower concrete roots, wherein the upper steel column is internally hollow, the diameter of the upper steel column is 3.2 mor above, and the bottom of the upper steel column goes deep to be below the local scour line of the seabed; and the lower concrete roots are provided at least three and of solid structures, the diameter of each lower concrete root is 0.8-2.5 m, and the lower concrete roots are arranged inside the upper steel column, the upper ends of the lower concrete roots are fixedly connected with the innerwall of the upper steel column through a first cushion cap, the first cushion cap is above the seabed surface, the lower end of the upper steel column is fixedly connected with the outer walls of thelower concrete roots through a bottom seal segment, and the bottom seal segment is formed by pouring concrete. The steel column concrete root deep water foundation structure is simple in constructionand reasonable in force bearing, has the excellent horizontal bearing capacity, further has the reliable vertical bearing capacity and gives full play to the mechanical properties and advantages of different materials, the use amount of basic materials is saved, the construction cost of deep-water foundation in harsh deep-sea environment is lowered, and the steel column concrete root deep water foundation structure and the construction method for the steel column concrete root deep water foundation structure are suitable for the marine engineering deep-water foundation with deep water and fastflow, long and high wave, severe scour and deep covering layers.