38results about How to "Uniform access" patented technology

The current invention provides a simple yet efficient Data Service Middleware or DSM computing device and method that provides access to remote, heterogeneous and autonomous peer-to-peer (P2P) data sources, thereby allows users to share and exchange files. The current invention allows non-expert users to share and integrate their data and can meet the growing need of sharing existing widespread data-sources. In the current invention data sources are exported and deployed as services and as such, data sources easily discovered and uniformly accessible using standard SOAP requests and are integrated through service composition.

The invention discloses a coal mill for a boiler. The coal mill comprises a distributor, a dynamic separator, an upper frame body, a lower frame body and a base which are sequentially arranged from top to bottom, wherein a driving motor is arranged on the distributor; the distributor is in transmission connection with the driving motor; a rotary blade and a stationary blade are arranged in the dynamic separator; a refeed coal scuttle is arranged at the lower part of the dynamic separator; a loading rack and a pull rod are arranged below the refeed coal scuttle; the pull rod is arranged on one side of the loading rack; the loading rack is fixedly connected with the base through the pull rod; two grinding rollers are arranged on the inner side of a swinging and adjusting device; a motor is arranged on one side of the lower frame body; a speed reducer is arranged in the lower frame body. The coal mill for the boiler is compact in structure, stable in running, high in service efficiency and convenient to operate, can discharge dust during grinding to reduce pollution, and allows the diameter of ground coal powder to be adjusted.

The invention discloses a slag lean-oxygen combustion catalytic oxidation type staged combustion boiler system and method. The slag lean-oxygen combustion catalytic oxidation type staged combustion boiler system comprises a lean-oxygen combustion chamber and a carbon monoxide catalytic oxidation device. A cavity is contained in the lean-oxygen combustion chamber. The upper end of the lean-oxygen combustion chamber is provided with a smoke outlet. A secondary combustion chamber is arranged on the downstream side of the smoke outlet of the lean-oxygen combustion chamber. A smoke inlet of the secondary combustion chamber communicates with the smoke outlet of the lean-oxygen combustion chamber. An air supplementation chamber is arranged on the downstream side of the smoke outlet of the secondary combustion chamber. A smoke inlet of the air supplementation chamber communicates with a smoke outlet of the secondary combustion chamber. The downstream side of the smoke outlet of the air supplementation chamber is provided with the carbon monoxide catalytic oxidation device. The smoke inlet of the carbon monoxide catalytic oxidation device communicates with a smoke outlet of the air supplementation chamber. According to the slag lean-oxygen combustion catalytic oxidation type staged combustion boiler system and method, through staged combustion of coal, high efficiency and low emission of NOx can be achieved, and atmospheric pollution is lowered; a SCR denitration device is not arranged, so that the catalyst optimum temperature limitation problem, the ammonia injection mixing evenness problem, the catalyst waste treatment problem and other serious problems in the denitration process can be avoided.

The invention discloses a natural gas condensing boiler system and a method thereof for catalytic oxidation of fuel-rich combustion. A combustor is successively connected with a fuel-rich combustion chamber, a second return flue pipe and a third return flue pipe to form three flue gas return paths. An excess air coefficient maintained in the fuel-rich combustion chamber is less than 1. 0, an unburnt gas catalytic oxidation device is arranged on the third return flue pipe, and flue gas passes through the three flue gas return paths and is connected with a chimney by passing through an energy saver and a condenser successively. According to the natural gas condensing boiler system, rapid combustion in a reducing atmosphere is achieved, and almost no NO<x> is generated by low-temperature oxidation in the unburnt gas catalytic oxidation device, thus the NO<x> emission level can be strictly controlled, and environmental pollution is reduced; according to the natural gas condensing boiler system and the method thereof for catalytic oxidation of fuel-rich combustion, NO<x> emission can be effectively decreased, meanwhile, the alteration cost is saved, and the heat is recycled; and the system has a wide application range, and is suitable for various heating condensing boilers.

A computer-implemented method is disclosed for executing aggregate queries of composite relationships from an Entity-Relationship (ER) model which sources data from a plurality of heterogeneous and decentralised databases. The method comprises maintaining an ER model comprising a plurality of entities E_n for which data exists in one or more databases, and one or more relationships r_n between those entities. An aggregate query is received relating to a composite relationship cr(r1, r2) involving entities E1, E2 and E3 wherein r1 is a relation between E1 and E2, and wherein r2 is a relation between E2 and E3. The computation of the aggregate query is optimized by selecting an aggregation strategy according to the relation between entities E1, E2 and E3, such that a single table aggregation strategy, a semi-join strategy or a join strategy is selected according to the relation between tables defining entities in the ER model.

The invention relates to a heat shield element (1), in particular for lining a combustion chamber (2), comprising a wall (3) with a hot face (4), to which a hot medium can be supplied, and a cold face (5), which lies opposite the hot face (4), and comprising a peripheral edge (6), which adjoins the wall (3) and extends outwards beyond the plane of the cold face (5) and which comprises a free end (7) positioned at a distance from the cold face (5). A partition (8) extends from the cold face (5) of the wall (3) to the height of the free end (7) between two opposing sides (9) formed by the edge (6) such that two separate first and second chambers (10, 11) are formed on the cold face (5) of the wall (3), wherein the first chamber (10) has an opening gap (12) from the cold face (5) to the hot face (4). The invention further relates to an annular combustion chamber (2) and a gas turbine system (23).

The invention provides a culture box for dendrobium officinale cultivation. The culture box comprises a box body and a humidifier; a first mounting frame and a second mounting frame which are arrangedoppositely are installed in the box body, and multiple culture plates are arranged between the first mounting frame and the second mounting frame, the multiple culture plates are arranged at intervals in the vertical direction, the two ends of each culture plate are connected with the first mounting frame and the second mounting frame respectively, and a fan is installed in the box body and located below the multiple culture plates; a humidification pipe is arranged on the side, away from the second mounting frame, of the first mounting frame in the box body, and the humidification pipe is connected with a humidifier installed on the box body; and an exhaust pipe communicating with the outside atmosphere is arranged on the side, away from the first mounting frame, of the second mounting frame in the box body. Dendrobium officinale planting pots are placed on the culture plates, the humidifier adds mist to the box body through the humidification tube, and the fan works to make gas flowinside the box body, so that the mist can evenly enter and leave the box body, and the effects of long-term non-uniform blowing of moisture into the box body on growth of Dendrobium officinale are avoided.

The invention discloses a science popularization bulletin plate for a campus, and mainly relates to the field of bulletin plates. The science popularization bulletin plate comprises a frame module anda self-balancing support module, the frame module comprises laminates capable of inclining front and back and used for placing brochures, the self-balancing support module comprises a mounting guiderod, a hydraulic cylinder and a plug rod; the top end of the plug rod is provided with a plug piece matched with a piston of the hydraulic cylinder, the bottom end of the hydraulic cylinder is in sealing and sliding fit with the plug rod, the lower portion of the guide rod is in lifting fit with the top of the hydraulic cylinder, and the hydraulic cylinder is provided with supporting blocks whichis arranged below the laminates and used for supporting the laminates. The science popularization bulletin plate has the beneficial effects that automatic balance and adaptation are achieved accordingto the storage amount of the brochures, and therefore people are guided to take the brochures on the side with the large remaining amount.

The invention discloses a self-steady flow type energy storage pool, and relates to the technical field of energy storage equipment. The self-steady flow type energy storage pool specifically comprises a box body, wherein two water distributors are symmetrically arranged in the box body, and the water distributors sequentially divide the inner space of the box body into a hot water transition area, an energy storage area and a cold water transition area which are not communicated with one another from top to bottom. Each water distributor comprises fixed partition plates and water distribution assemblies which are arranged at intervals, each water distribution assembly comprises a water distribution barrel, and a plurality of first flow channels and second flow channels which are arranged at intervals are evenly distributed on each water distribution barrel in the axis direction. A valve core is arranged in each water distribution barrel, each valve core comprises a piston part and a connecting rod part which are arranged at an interval, an air passage is arranged in each valve core, an air bag sleeves outside each connecting rod part, and the position, positioned in the corresponding air bag, of each connecting rod part is provided with an air hole communicated with the corresponding air passage. One-way valves are arranged on first water filling pipes, first water discharging pipes, second water filling pipes and second water discharging pipes. The energy storage pool can reduce the thickness of a thermocline and ensure the stability of the thermocline.