5 results about "Life Prolongation" patented technology

The purpose of the present invention is to provide a magnetic resonance imaging apparatus and a method for controlling a refrigerator. The magnetic resonance imaging apparatus increases the operating rate of an MRI apparatus by prolonging the replacement life of the refrigerator and reducing the replacement frequency of the refrigerator. And executing a cold head life prolonging mode. In the cold head life extension mode, regardless of the temperature of the superconducting coil, the displacer of the refrigerator is moved at a constant frequency lower than a predetermined upper limit frequency, and the drive frequency of the compressor drive unit adjusted by the compressor inverter is controlled in accordance with the temperature of the superconducting coil.

The invention relates to the field of service life prolonging control, and discloses a reinforcement learning-based self-adaptive service life prolonging control method for a wind turbine generator, which is used for providing a reliable technical means for prolonging the service life of the wind turbine generator. Comprising the steps of collecting a unit operation state and key component health parameters, and generating multi-dimensional state information; establishing a damage evolution model, predicting the residual life and generating a health degree index; designing a multi-objective optimization strategy, and solving to generate a cooperative control instruction; after the instruction is executed, the model and the strategy are dynamically updated based on unit state feedback, and a closed-loop control system is formed. The service life of the wind turbine generator is effectively prolonged.

The invention provides a method for prolonging the service life of a glass kiln brick body, and relates to the technical field of glass kiln brick body design. The method comprises the following steps: acquiring a thermal expansion coefficient of a brick body material, a kiln temperature change range, an initial length of a brick unit and a safety coefficient; calculating the minimum gap width between the brick units; with the minimum gap width as the standard, a gap is formed between every two adjacent brick units; the gap is filled with a high-temperature elastic refractory fiber material; in the test operation process of the kiln, monitoring the temperature change of the kiln; and adjusting the width of the minimum gap according to the monitored temperature change data of the kiln. According to the method for prolonging the service life of the brick body of the glass kiln, on the premise that the thermal inertia and the material cost of the kiln are not remarkably increased, thermal stress caused by rapid temperature change can be effectively reduced, and erosion of molten glass is resisted, so that the service life of the brick body is prolonged, and production halt of the kiln caused by frequent replacement of the brick body is avoided.

The utility model discloses a sampling end part structure with a service life prolonging effect, which relates to the technical field of sampling components and comprises a drill cylinder body, a drill cylinder head ring is arranged at the bottom of the drill cylinder body, damaged and worn parts of the existing drill cylinder body are cut off, and the cutting position is the position of a welding seam. Then the middle end part of a scrapped drill cylinder made of the same material is subjected to proportional cutting to manufacture a sampling drill cylinder head ring, and a welding seam between the drill cylinder body and the drill cylinder head ring is welded, so that the front function of the sampling drill cylinder is restored, damage is repaired, the function of a drill bit is restored, replacement is not needed every time, and the cost is greatly reduced; the same material is still adopted for implementation, and the function of the sampling machine drill rod is effectively restored; the method is implemented in a reasonable damage condition, effectively strengthens the easy-to-wear part of the drill barrel, reduces the resonance of the whole sampling mechanism, and prolongs the service life of each electric appliance and the sampling rod mechanism.

This invention discloses a method for extending the lifespan of a graphite circumferential sealing structure, belonging to the field of mechanical seal technology. The graphite circumferential sealing structure includes a raceway, a segmented graphite sealing ring, and at least one adjusting sleeve. The method includes: initially, forming a dynamic seal between the inner bore surface of the graphite sealing ring and the outer circumferential surface of the raceway; when the inner bore surface of the graphite sealing ring wears down, performing a first adjustment by fitting and fixing a first adjusting sleeve outside the raceway, forming a dynamic seal between the inner bore surface of the graphite sealing ring and the outer circumferential surface of the first adjusting sleeve; when it wears down again, performing a second adjustment by fitting and fixing a second adjusting sleeve outside the first adjusting sleeve, forming a dynamic seal between the inner bore surface of the graphite sealing ring and the outer circumferential surface of the second adjusting sleeve; and so on, by sequentially fitting and fixing adjusting sleeves, the inner bore surface of the graphite sealing ring sequentially forms a dynamic seal with the outer circumferential surface of each adjusting sleeve, achieving multi-stage lifespan extension.