49results about How to "Controllable duration" patented technology

The invention discloses an automatic tea maker. The automatic tea maker comprises a container, a base bearing the container, a support arranged outside the container, a tea basket bracket installed on the support and can move up and down along the support, a driving device which is arranged outside the container and drives the tea basket bracket to move up and down, a tea basket which is installed on the tea basket bracket and can stretch into the container to move up and down, a controller arranged outside the container, wherein a temperature sensor and a heating module are arranged at the bottom of the container, the base is provided with an electric connector electrically connected with the heating module, and the controller is electrically connected with the heating module, the temperature sensor and the driving device. The temperature and the time for tea making can be controlled, the high requirement for the tea making technology is met, and more delicious tea can be made; the tea basket, the driving device related structures and the controller which are high in weight are arranged outside the container, so that the weight of the container is greatly lowered, and the automatic tea maker can be taken more easily in a labor-saving mode.

The invention relates to systems used for enabling LNG pipelines to cross over a dam and construction methods of the systems, wherein one of the systems used for enabling LNG pipelines to cross over the dam and suitable for a soil, stone-built or concrete dam comprises a box culvert, slopes, LNG pipelines, an electric tracer heating system, a cushion layer and a waterproof layer, wherein the box culvert is stacked at the top of the dam; the slopes are arranged at two sides of the box culvert; the LNG pipelines cross over the box culvert and pass through the dam; the electric tracer heating system is arranged between the top of the dam and a bottom plate of the box culvert; the cushion layer is arranged between the electric tracer heating system and the bottom plate of the box culvert; and the waterproof layer is arranged at the outer side of the box culvert. The other system used for enabling LNG pipelines to cross over the dam and suitable for a soil dam comprises a box culvert, LNG pipelines, an electric tracer heating system, a cushion layer and a waterproof layer, wherein the box culvert is arranged in the dam and passes through the dam; the LNG pipelines cross over the box culvert and pass through the dam; the electric tracer heating system is arranged between a soil body inside the dam and a bottom plate of the box culvert; the cushion layer is arranged between the electric tracer heating system and the bottom plate of the box culvert; and the waterproof layer is arranged at the outer side of the box culvert. The invention also provides another system used for enabling LNG pipelines to cross over the dam and suitable for a soil dam, wherein the system comprises the LNG pipelines directly cross over the inside of the dam and waterproof cushions for wrapping the outer parts of the LNG pipelines.

The invention discloses a unit-assembly-type framework partition wall system and a construction method thereof. The framework partition wall system comprises multiple partition wall units and an assembly structure, each partition wall unit comprises a connecting structure and two half partition wall units, each half partition wall unit comprises two cover faceplates, multiple screws, a partition wall main keel, a center-penetrating keel and fireproof and soundproof cotton, the two cover faceplates are in parallel arrangement, two ends of the partition wall main keel are fixedly connected to the inner side walls of the two cover faceplates through the screws respectively, the center-penetrating keel transversely penetrates the partition wall main keel, the fireproof and soundproof cotton is filled in a space formed between the center-penetrating keel and the two cover faceplates, each connecting structure comprises a wood block, two battens and multiple screws, and the assembly structure comprises a sky keel and a ground keel. By the unit-assembly-type framework partition wall system and the construction method thereof, construction period can be effectively shortened, cost can be lowered, environment protection is realized, and fast-paced development requirements can be met.

The invention belongs to the technical field of water conservancy construction, and relates to a construction method for reconstructing a cofferdam anti-seepage system in an immersed tube tunnel. The construction method comprises the steps that remaining sand-filled long pipe bags and a river bed after an original primary cofferdam is destroyed by rush of river are adopted as a base, and stones are thrown at two sides of the base to form an inner side riprap cofferdam body and an outer side riprap cofferdam body; the space between the inner side riprap cofferdam body and the outer outside riprap cofferdam body is filled with clay to form a first-level clay cofferdam body, the inner side riprap cofferdam body, the outer side riprap cofferdam body and the first-level clay cofferdam body form an earth-rock cofferdam, and after the construction of the earth-rock cofferdam, a second-level clay cofferdam body is constructed above the earth-rock cofferdam through filling; and plastic concrete drilling occlusion piles are constructed in the middle part of the first-level clay cofferdam body as the anti-seepage system of the earth-rock cofferdam. According to the construction method, the cofferdam can be quickly reconstructed on the basis of the remaining sand-filled long pipe bags and the river bed remaining after the original primary cofferdam is destroyed by rush of river, the stable earth-rock cofferdam and the anti-seepage system thereof are formed, and remaining civil engineering in the cofferdam is guaranteed to reach the construction condition of no-water operation.