5results about How to "No power consumption" patented technology

This utility model belongs to the field of fuel cells, specifically relating to a hydrogen subsystem for a hydrogen fuel cell. It includes a hydrogen inlet pipeline, a proportional valve or hydrogen injector, a fuel cell stack, a vortex tube, a gas-water separator, and a hydrogen circulation device. The hydrogen inlet pipeline is sequentially connected to the proportional valve or hydrogen injector and the fuel cell stack. The hydrogen outlet of the fuel cell stack is connected to the vortex tube. The vortex tube has two outlets, one connected to the gas-water separator and the other connected to the hydrogen circulation device. The gas outlet of the gas-water separator is connected to the hydrogen circulation device. The hydrogen circulation device is connected to the hydrogen inlet of the fuel cell stack. In this utility model, the cooling effect of the vortex tube allows the liquid water in the returning hydrogen to condense rapidly, generating more liquid water and achieving better liquid water separation.

The utility model discloses a charging control circuit and portable power source. The charging control circuit includes: battery, switch module, comparison circuit, voltage conversion circuit and connector, the first input of comparison circuit is connected with the power port of connector, and the second end of comparison is connected with reference voltage, and the output of comparison circuit is connected with the control end of switch module, and comparison circuit is used for controlling the conduction or shutdown of switch module, the first end of switch module is connected with battery, and the second end of switch unit is connected with the input of voltage conversion circuit, the input of voltage conversion circuit is connected with the power port of connector, and the output of voltage conversion circuit is connected with load. The utility model discloses technical scheme can cut off the power supply loop of battery under the condition of having external power supply connection and the full charge of battery, does not consume the battery capacity, avoids the user misjudgment of the battery not full charge.

This invention relates to the field of traffic engineering technology, specifically to a method for preparing and paving prefabricated luminescent concrete road markings. The method includes: preparing prefabricated luminescent concrete marking slabs made of white silicate cement, aggregates, long-afterglow luminescent materials, and admixtures through casting and curing; embedding the slabs into installation grooves formed in the road surface, ensuring their upper surfaces are flush with the road surface; and filling the joints with sealant. This invention employs a prefabricated assembly process, enabling industrialized production and quality control, and solving problems such as construction pollution, poor visibility in rainy and nighttime conditions, and difficult maintenance associated with traditional road markings. The slabs incorporate luminescent materials throughout, resulting in excellent nighttime visibility; the optimized mix ratio gives the slabs both superior mechanical and luminescent properties; the service life is 5-10 times that of traditional road markings; the total life-cycle cost is reduced by 30%-50%; and it is environmentally friendly. It is suitable for newly constructed asphalt pavements, newly constructed cement pavements, and the reconstruction of existing roads.

This invention discloses a horizontally mounted piston-airbag type water hammer protection tank for water hammer protection in water supply systems. The tank body has an inner tank, separating an inner cavity from an outer cavity. The inner tank is further divided into left and right inner cavities by left and right partitions, with a piston cylinder and an airbag cylinder respectively installed at each end. The left and right pistons reciprocate within the cylinders in a sealed manner. The matching left and right telescopic airbags, composed of soft bag-like structures and multi-rod telescopic joints, move intermittently within the airbag cylinders, forming completely isolated air pressure and hydraulic chambers, achieving gas-liquid separation and heat insulation. A float assembly is installed at the bottom of the tank, and a circulating water nozzle is located at the top, connected downstream of the water pump check valve. A bottom-side spray nozzle is aligned upstream of the check valve via a first ejector. A water supply branch pipe connects to the main water supply pipe via an inlet ball valve and a second ejector. This device replaces the traditional waterbag structure with a piston-airbag synergy, solving the defects of waterbag rupture and the need for continuous air replenishment in air compressor-type systems, thus improving the reliability and energy efficiency of water hammer protection.

This invention belongs to the field of wastewater recycling and discloses a boiler continuous drainage recycling and reuse device. The device includes a boiler body, a sealed box, a filter cylinder, and an intermediate water tank. Furthermore, in use, the transmission mechanism does not require an independent motor drive. Utilizing the kinetic energy of the continuous drainage itself, the drainage impacts the arc-shaped plate through a conical guide pipe, driving the rotating rod, sprocket, and connecting rod in a coordinated manner. This, in turn, drives the filtration mechanism to reciprocate and the stirring mechanism to agitate the water. It relies entirely on the kinetic energy of the water flow, consuming no additional electrical energy, thus meeting the requirements for energy conservation and emission reduction. The filtration mechanism, through the connecting rod, drives the support rod and roller seat to periodically push the base plate, causing the filter plate to reciprocate. Surface impurities automatically fall off, eliminating the need for an additional backwashing device.