34results about How to "With energy storage" patented technology

The invention relates to a solar refrigerator, in particular to a solar photovoltaic refrigerator system based on a DC variable frequency compressor and phase change cold storage. The system mainly comprises two parts, i.e. a solar photovoltaic generation system and a refrigeration system of a refrigerator. The solar photovoltaic generation system comprises a photovoltaic panel, a controller and a storage battery; and the refrigeration system of the refrigerator mainly comprises the compressor, a condenser, a throttling device, a freezer / refrigerator evaporator and a cold storage device evaporator connected with the freezer / refrigerator evaporator in parallel. A heat tube is adopted as a device for transferring heat between a cold storage device and the space of the refrigerator. The cold storage device stores cold when electric power is sufficient, and releases cold when the electric power is insufficient. The storage battery supplies power when the cold of the cold storage device is fully released and the power that the photovoltaic panel generates is still insufficient. In addition, the storage battery and the controller of the photovoltaic generation system are integrated with the refrigerator, and the appearance structure is more attractive and practical. The system fully does not consume the electric power of a power grid, and has very profound research significance in saving electric power and effectively utilizing renewable energy.

The invention discloses a method for preparing a light partition wall board by utilizing desulfurized gypsum. The method comprises the following steps: in percentage by weight, weighing 40-60 percent of the desulfurized gypsum and 60-40 percent of the desulfurized gypsum; mixing the desulfurized gypsum to obtain a mixture serving as a base material; adding 2-5 percent of quick lime, 10-15 percent of cement, 0.6-0.8 percent of a naphthalene water reducer, 2-3 percent of a triggering agent, 0-0.03 percent of an air entraining agent and 0.3-0.5 percent of a reinforcing fiber into the base material based on the total mass of the base material; uniformly mixing; adding water of which the mass is 65% of the total mass of the mixed materials into the mixture; stirring and simultaneously adding 80% of polystyrene foam particles based on the total volume; uniformly mixing to obtain a thick pasty wet material containing foam particles; filling the wet material into a mold; and demolding and maintaining to form the light partition wall board. By adopting the desulfurized gypsum as a cementing material, a great amount of solid wastes such as the desulfurized gypsum are consumed, and the product is good in water resistance, low in investment and low in cost.

The invention provides a safety shut-off valve which comprises a valve body, an upper cover plate, a shut-off component and a hand wheel assembly. A circulation channel is arranged in the valve body. The hand wheel assembly is connected with the shut-off component. The hand wheel assembly drives the shut-off component to shut off the circulation channel in the valve body when the pressure is abnormal. The shut-off component comprises a valve plate assembly, a main shaft assembly and a reset shaft assembly. The main shaft assembly and the reset shaft assembly are arranged on the valve body in parallel. One end of the valve plate assembly is connected with the main shaft assembly. The valve plate assembly can rotate relative to the main shaft assembly. The main shaft assembly is connected with the hand wheel assembly. When the safety shut-off valve works, the other end of the valve plate assembly is erected on the reset shaft assembly, and the safety shut-off valve is in the opened position; when the safety shut-off valve fails, the hand wheel assembly drives the main shaft assembly to rotate so as to drive the valve plate assembly to rotate so that the valve plate assembly can rotate to press a shut-off boss in the valve body, and the safety shut-off valve is in the closed position. The safety shut-off valve is better in stability and high in operation safety coefficient, and the load is distributed reasonably due to the double-shaft type structural design.

The invention discloses a system and a process for storing and releasing electric energy on the basis of a methanation reaction. The system and the process both comprise a carbon oxide compound purifying system, a gas generating system, a methanation system, a steam heating system of the methanation system, a steam turbine system, a product separation system, a product storage system and a gas power generation system. Compared with the prior art, through the system and the process, the excess electric energy is stored in the form of substitute natural gas, so that when the peak time of electricity consumption arrives, the substitute natural gas produces electric energy through a gas turbine power generation system, and the purposes of regulating peak load of an existing power grid and improving the efficiency of power consumption are fulfilled.

The invention provides an integrated drive control circuit applied to a double-power feed system and a control method thereof. The double-power feed system comprises a first power supply, a second power supply, a load, an integrated drive control circuit and the like. The integrated drive control circuit also further comprises a compound switch converter connected with a controller, wherein the controller is used for controlling the operation of the compound switch converter when the energy of the first power supply is sufficient, and the first power supply outputs the energy to the second power supply. When the energy of the first power supply is insufficient, the controller controls the operation of the compound switch converter, and the second power supply transmits energy to the load.The invention realizes the operation modes of two converters by a group of compound switch converter, simplifies the circuit design and enhances the working stability.

The invention relates to a phase change heat storage type solar energy evacuated collector tube and a solar water heater comprising the phase change heat storage type solar energy evacuated collector tube, which belong to the technical field of solar energy. The phase change heat storage type solar energy evacuated collector tube comprises a glass outer pipe of an outer layer and a metal inner pipe of an inner layer, a ripple structure is arranged on the metal inner pipe close to an opening end of the metal inner pipe, opening ends of the glass outer pipe and the metal inner pipe are welded through kovar alloy rings, elastic sliding support pieces are arranged between closed ends of the glass outer pipe and the metal inner pipe, vacuum parts are arranged between the glass outer pipe and the metal inner pipe, selective absorbing coatings are coated on pipe outer wall of the metal inner pipe, a sealing cover is arranged on the opening end of the metal inner pipe, phase change heat storage materials are filled in the metal inner pipe, a U-type heat exchange pipe is embedded in the phase change heat storage materials, and an inlet end and an outlet end of the U-type heat exchange pipe stretches outside the opening end of the metal inner pipe and pass through the sealing cover to fix. The phase change heat storage type solar energy evacuated collector tube and the solar water heater comprising the phase change heat storage type solar energy evacuated collector tube have the advantages of integrated heat collection and storage, no water tank, small space usage and large heat storage amount and the like.

The invention discloses a dimmable LED lamp circuit, which comprises a rectification circuit, an LED light-emitting circuit, a one-way flow circuit, a filter circuit, a constant current control circuit and a time-voltage conversion circuit, and the rectification circuit is connected with an intelligent dimming controller. In a change cycle of the mains voltage, even if the output terminal of the intelligent dimming controller remains in the on state, its output terminal has two output current states: the state where the output current is not zero and the state where the output current is zero. The intelligent dimming controller performs chopping control on the mains AC voltage at the low voltage moment when the output current is zero, and sends a control signal to the LED lamp circuit by controlling the chopping time; the advantage is that it can be compatible with the intelligent dimming controller, Composing an intelligent lighting system with an intelligent dimming controller is of great significance for improving the market competitiveness of dimmable LED lights and expanding their application prospects.

The invention discloses a system and a process for storing and releasing electric energy based on a methanation reaction. The system and the process each comprise a carbon-oxygen-containing purification system, a gas generation system, a methanation system, a vapor heating system of the methanation system, a product separation system, a product storage system and a gas power generation system. Compared with the prior art, the system and the process provided by the invention can realize the purposes of performing peak regulation of the existing power grid and improving electric energy utilization efficiency through storing excess electric energy in the form of a substitute natural gas, and generating electric energy by a gas turbine power generation system through utilizing the substitute natural gas when the power utilization peak comes.

The invention discloses a double-sided milling machine for a connecting sleeve blank tube. The milling machine automatically conveys the connecting sleeve blank tube to a clamping mechanism through a feeding mechanism, and then drives a blade knife to mill the two sides of the connecting sleeve blank tube through the feeding mechanism on both sides. flat. The milling machine is capable of milling both sides of the connecting sleeve blank tube simultaneously by means of face cutting, with high smoothness of the side and energy-saving and high-efficiency working process.