6results about How to "Reasonable pressure" patented technology

The present invention discloses a horizontal axis eccentric hemispherical valve, which adopts a horizontal axis structure to install the valve core, and the axis of the valve stem is perpendicular to the flow direction of the medium in the valve body and is arranged horizontally, so as not to occupy the lower end of the flow channel, so that the lower end of the flow channel can be designed to be flatter than that of a vertical eccentric hemispherical valve, thereby reducing the flow resistance. The valve core is provided with a cylindrical boss concentric with the valve core, and a sealing ring is provided in the gap on the boss, the sealing ring has a spherical crown-shaped sealing surface, and an air bag ring is provided in the gap formed by the boss and the sealing ring. The sealing ring and the valve core are fixed by a fixing assembly, so that the valve core sealing spherical crown and the valve seat center can be adjusted to be concentric during assembly, so as to overcome the processing error and ensure effective sealing.

This application provides a method, apparatus, and electronic equipment for optimizing the distributed energy storage configuration in a new energy base. The method includes: determining a set of candidate distributed energy storage ratios for the new energy base to be configured with an energy storage system; acquiring operational data of the new energy base within a preset time period; constructing an energy storage configuration optimization model; for each candidate distributed energy storage ratio, solving the problem based on the operational data and the energy storage configuration optimization model to determine the total high-voltage side power supply and total operation and maintenance cost corresponding to that ratio; determining a target distributed energy storage ratio from the set of candidate distributed energy storage ratios based on the total high-voltage side power supply and total operation and maintenance cost corresponding to each candidate distributed energy storage ratio; and configuring energy storage in the new energy base based on the target distributed energy storage ratio. This application achieves a reasonable distributed energy storage configuration without changing the total planned energy storage capacity of the base, reducing dependence on high-voltage side power supply.

The invention relates to the technical field of road construction material testing, and in particular to a highway compaction detection device. The device determines an initial adjustment coefficient of a highway soil foundation characterizing the deformation sensitivity of the soil foundation surface at a current sampling moment according to the time-series change of edge distribution in an edge image of a highway soil foundation surface during a downward pressure process; then, according to the change of the edge position of the soil foundation surface under stress during the downward pressure process, the unreasonableness of the advancement speed is measured by calculating the advancement speed stability, thereby combining the initial adjustment coefficient of the highway soil foundation and the advancement speed instability to determine the highway soil foundation optimization adjustment coefficient for adjusting the advancement speed at the current sampling moment; finally, the advancement speed is adjusted according to the highway soil foundation optimization adjustment coefficient, thereby obtaining a more reasonable adaptive advancement speed at the current sampling moment, making the real-time downward pressure of the cylinder more reasonable, and making the highway compaction detection result more accurate.

The present invention discloses a ventilation device and a ventilation system, the ventilation device comprising: a ventilator having two ports in the axial direction; a fan arranged in the ventilator to allow airflow to pass through the ventilator; a regenerator arranged in the ventilator to absorb heat in the airflow; wherein: a blocking portion for blocking airflow is formed on the radial periphery of the fan, and the blocking portion is used to make the flow cross section of the fan smaller than the flow cross section of the regenerator. The present invention sets the flow cross section of the fan smaller than the flow cross section of the regenerator, thereby enabling the fan and the regenerator to form a reasonable pressure match and flow rate match.

The utility model discloses an impeller with an anti-blocking effect for a submersible pump, which relates to the technical field of impellers for submersible pumps and comprises a submersible pump main body. A rotating rod is arranged in the submersible pump body, a plurality of hollowed-out impellers are installed on the surface of the rotating rod, the hollowed-out impellers are evenly arranged, each hollowed-out impeller is composed of a connecting sleeve, a partition plate and hollowed-out blades, the connecting sleeve is arranged in the middle of the surface of the hollowed-out impeller, and the hollowed-out blades are arranged on the surface of the connecting sleeve. Compared with an existing impeller for a common submersible pump, according to the impeller for the submersible pump with the anti-blocking effect, the periphery of the impeller is hollowed out, so that the water outlet area of the water outlet can be increased, the situation that the water outlet is blocked by dirt during water pumping is avoided, and meanwhile the water outlet efficiency is improved; and the load of the direct current motor during working is reduced, so that the direct current motor can work efficiently for a long time, and the maintenance cost is reduced.

The utility model discloses a kind of gas steam combined cycle units, comprising: first unit and second unit, respectively equipped with gas turbine system, form first gas turbine and second gas turbine;First gas turbine water supply pipeline, through first gas turbine shut first valve body and second valve body;Second gas turbine water supply pipeline, through second gas turbine shut third valve body and fourth valve body;First gas turbine water supply flow regulating valve, set on first gas turbine water supply pipeline;Second gas turbine water supply flow regulating valve, set on second gas turbine water supply pipeline, including second condenser side regulating valve and second waste heat boiler side regulating valve, the technical scheme of this gas steam combined cycle unit can improve FGH system start-up problem, optimize the FGH water supply system design of two sets of units, to ensure that under different operating conditions, FGH system can be normally put into operation, improve the efficiency of gas turbine and stabilize unit load.