30results about How to "Solve the problem of low energy utilization" patented technology

The invention belongs to the technical field of energy storage and utilization, and discloses an energy storage device and a peak load regulation method for peak load regulation in a power plant. Theenergy storage device for peak load regulation in the power plant comprises a heat exchanger, a first energy storage tank and a second energy storage tank, wherein the first energy storage tank and the second energy storage tank are correspondingly connected to two sides of the heat exchanger; the first energy storage tank, the heat exchanger and the second energy storage tank are connected sequentially to form a first closed-loop system; a phase-change material which flows in a circulating manner is arranged in the first closed-loop system; the temperature of the phase-change material is lowered sequentially in the direction of flowing through the first energy storage tank, the heat exchanger and the second energy storage tank; and when the phase-change material flows through the heat exchanger, the phase-change heat release is achieved, and the liquid state is changed to the solid state. According to the energy storage device disclosed by the invention, the phase-change material is utilized for the phase-change heat release when passing through the heat exchanger, so that a lot of heat can be absorbed by the heat exchanger, the energy utilization ratio of the energy storage device can be greatly improved, and then the problem about the low energy utilization ratio of the conventional molten salt energy storage process can be solved.

The invention discloses a novel method for mechanical rock breaking based on tensile shear stress. A hydraulic power mechanism comprises a movable power vehicle (9) and a hydraulic oil tank (11), wherein the hydraulic oil tank (11) is assembled on the power vehicle (9), and a driving motor (10), a pressure gauge (12) and a controller (13) for controlling the hydraulic oil tank (11) to supply oil are arranged on the hydraulic oil tank (11); a drawing rock breaking mechanism comprises a hydraulic jack (1), a jacking vertical rod (2), a base plate (4), a cross beam (5), a drawing rod (6) and an anchoring rod (8); and one end of an oil feeding pipeline (14) and one end of an oil return pipeline (15) are respectively connected with an oil inlet and an oil return opening of the hydraulic jack (1), and the other end of the oil feeding pipeline (14) and the other end of the oil return pipeline (15) are respectively connected with an oil outlet valve and an oil return valve of the hydraulic oil tank (11). According to the novel method, the characteristics that rock masses are resistant to pressure and are not resistant to tensile shear are fully utilized, static environment-friendly mechanical rock breaking with only drilling but not blasting is realized, the rock masses are prevented from being excessively smashed, the high boulder rate is avoided, the requirement for rock lumpiness of an engineering project is met, the mechanical shoveling and transporting efficiency is improved, the shoveling operation cost is reduced, and the method can be widely applied to the fields of mines, tunnels, traffic roads, side slopes, foundation pit excavation and the like.

The invention discloses a flat-plate integrated solar water heater, include a bracket and heat preservation buckets, a mounting plate is fixed on the upper end of the bracket, the upper end of that mounting plate is provided with a base, the heat preservation buckets are sequentially arranged at the upper end of the base, a light reflecting plate is fixed on the upper ends of the heat preservationbuckets, the upper end of the light reflecting plate is uniformly provided with a vacuum tube, the inner part of the bracket is provided with annular through holes, each two adjacent heat preservation buckets are connected with each other through a communication tube, both ends of the heat preservation bucket are provided with convex heads, and the light reflecting plate is connected with the vacuum tube through a groove arranged at the upper end. The bracket, the mounting plate, the base, the annular through holes, the light reflecting plate, the vacuum tube, the heat preservation buckets, the communication tube, a low fixing piece, a protective shell, a beam plate, an upper fixing piece and the groove are arranged to solve the problems of insufficient heat collecting effect, large occupying space and short service life of the solar water heater in use at the present stage.

The invention provides a lean-burn internal combustion engine system and a vehicle with the lean-burn internal combustion engine system. The lean-burn internal combustion engine system comprises an internal combustion engine controller; the switched reluctance motor is electrically connected with the internal combustion engine controller; the gas compressor is connected with the switched reluctance motor; the turbine is connected with the switched reluctance motor, and the switched reluctance motor is located between the gas compressor and the turbine. The hydrogen-injection lean-burn engine is communicated with the gas compressor through the throttle valve, the turbine is communicated with an intake manifold of the hydrogen-injection lean-burn engine, and the hydrogen-injection lean-burn engine is electrically connected with the internal combustion engine controller. The internal combustion engine controller controls the switched reluctance motor to serve as a motor or a generator under different working conditions, when the switched reluctance motor serves as the motor, the electric auxiliary supercharging function is achieved, when the switched reluctance motor serves as the generator, the turbine power generation function is achieved, and the utilization rate of high-grade energy in tail gas is increased; the problem that a traditional exhaust gas turbocharger is low in energy utilization rate is solved.