10results about How to "Maintain efficiency" patented technology

The utility model relates to the technical field of cosmetic packaging, in particular to a serum protein active water film vacuum fresh-keeping glass bottle packaging device. The device comprises a storage assembly and a pumping assembly, the pumping assembly is connected with the storage assembly and extracts objects stored in the storage assembly outwards, the pumping assembly is externally connected with a smearing assembly, sealing assemblies are installed on the storage assembly and the smearing assembly, and the sealing assemblies control opening and closing installation. The storage assembly is designed to be in vacuum sealing, contact between oxygen in air and a serum protein active water film is remarkably reduced, the oxidation risk is reduced, the shelf life of the product is prolonged, the pumping assembly can accurately control the dosage extracted each time, waste is avoided, meanwhile, it is ensured that the dosage used each time is consistent, and the service life of the product is prolonged. The pumping mechanism reduces the opportunity that fingers of a user make direct contact with the product, pollution risks are reduced, product sanitation is guaranteed, the external smearing assembly is designed to be suitable for direct use, intermediate operation steps are reduced, and the user can smear the product easily.

The invention belongs to the technical field of thermal power generation, and discloses a thermal power generating unit boiler low-nitrogen combustion and efficiency collaborative optimization system. Comprising a load adjustment statistics module used for recording and analyzing load adjustment artificially initiated by a unit and generating a typical load adjustment event; the track acquisition module is used for carrying out parameterization setting and sampling on the combination of the coal feeding rate and the opening degree of the fan; the trajectory comparison module is used for performing coverage comparison elimination on the candidate trajectories obtained by sampling, and performing weighted calculation sorting to obtain an overall optimal trajectory; the model predictive control module is used for optimizing the coal feeding rate and the fan opening degree by adopting a model predictive control method; the control issuing module issues the control command, enters the next sampling moment, obtains the current state and the predicted value of the unit again, and repeats the optimization process in a rolling manner; according to the method, through a mode of combining track data driving and model prediction control, collaborative optimization of low-nitrogen combustion and combustion efficiency of the thermal power generating unit is realized.

The invention provides a cutting device for aluminum alloy door and window machining, and belongs to the technical field of metal cutting equipment. The device comprises a mounting frame, and a limiting sliding groove and a reciprocating lead screw which are arranged on the mounting frame; through cooperation of the cutting and abutting device, the clamping and cleaning device, the lubricating and cooling device, the triggering device and the like, automatic cutting of the aluminum alloy door and window can be achieved, gas sprayed out of an airflow nozzle can blow away cuttings, meanwhile, the temperature of a cutting area can be reduced, a telescopic device can elastically abut against the upper side wall of the aluminum alloy door and window, and the cutting efficiency is improved. A flow guide hole with a port arranged in a big-in and small-out mode can filter lubricating liquid in a liquid storage box, the lubricating liquid can be shaken up through rotation of a cutting wheel disc, along with continuous rising of heat, a pneumatic floating plate can drive a pressure contact piece to make contact with a bearing contact piece under pushing of gas, at the moment, an electromagnetic valve is opened, and the lubricating liquid in the liquid storage box can be cut off; and the lubricating liquid can flow out from the corresponding flow dividing grooves, so that accurate cooling and lubricating treatment can be carried out on tooth spaces of the cutting wheel disc.

This utility model discloses a respirator with a self-cooling function, belonging to the technical field of respiratory protection equipment. It aims to solve the problem of existing respirators causing discomfort and safety risks due to increased internal temperature caused by user respiration during use. It includes: a protective shield body; a liquid reservoir at the top of the protective shield body containing coolant, employing an elastic bladder structure; a circulation pipe horizontally disposed on the outside of the protective shield body, connected to both ends of the liquid reservoir via a first pipe and a second pipe; and a driving mechanism including a micro-pump disposed on the first pipe, the second pipe, or the circulation pipe, driving the coolant to flow sequentially through the liquid reservoir, the first pipe, the circulation pipe, the second pipe, and back to the liquid reservoir, forming a coolant circulation loop. This shield is mainly used in high-temperature environments or industrial and medical applications requiring cooling, automatically reducing the shield temperature and improving user comfort and safety.

The invention discloses a pretreatment method of a microorganism single-cell sequencing sample and a microorganism single-cell RNA sequencing method.The pretreatment method is carried out in a sampling tube, a sample fixing cavity and at least one independent cavity isolated from the sample fixing cavity are arranged in the sampling tube, and fixing liquid is preloaded in the sample fixing cavity or the independent cavity; a diluent is preloaded in the independent chamber, and at least one of the stationary liquid and the diluent contains a nucleic acid protective agent. The method comprises the following steps: sampling a sample and sealing a sampling tube; mixing the sample with the stationary liquid under a closed condition for fixing; and the diluent and the stationary liquid are mixed in the sampling tube before, at the same time or after fixation, so that the diluted stationary liquid and the sample coexist in the sampling tube to be fixed and stored, or the stationary liquid is diluted in the sampling tube after fixation is completed and then stored. The fixing and storing processes are both completed in the closed sampling tube.

This invention discloses a crystalline polyimide / polyimide composite material, its preparation method, and its applications. The method involves first uniformly mixing phenylhexacarboxylic acid trihydride with a diamine monomer, followed by a solid-phase reaction under argon atmosphere protection. After the reaction, the product is immersed in a polar solvent to obtain crystalline polyimide. Then, the crystalline polyimide is added to an organic solution of polyamic acid, subjected to ultrasonic treatment in an ice-water bath, and subsequently thermosetting to obtain the crystalline polyimide / polyimide composite material. The crystalline polyimide in this composite material has a layered two-dimensional COF structure, giving it relatively high thermal conductivity, heat resistance, and high-temperature mechanical properties. Introducing the crystalline polyimide into the polyamic acid solution utilizes the special interfacial compatibility between the amino groups in the crystalline polyimide and the anhydrides in the polyamic acid to react, solving the problem of difficult processing and effectively expanding its application range.

The invention relates to the technical field of wind power generation, in particular to an energy storage multi-channel fan control method which comprises the following steps: step 1, evaluating the wind power generation potential: firstly, analyzing the climate condition of the location of each wind power generator to estimate the potential power generation capacity of the wind power generator; the pre-estimated value is used as a basis for setting the priority of the wind driven generator, and the generator with the higher pre-estimated value can obtain the higher priority; according to the scheme, through the steps of evaluating the wind power generation potential, setting the power storage interval, monitoring the power storage state, dynamically adjusting the priority of the power storage equipment, setting the priority by considering the distance factor, determining the total priority and the like, the energy utilization efficiency is effectively improved, and the power storage and transmission strategy is optimized; the energy consumption is reduced, the system stability is improved, the response speed and economy of the system are enhanced, sustainable development is supported, the operation cost is reduced, and the continuity and reliability of power supply are ensured.

This application relates to a gas dispersing device, which falls under the field of gas dispersion technology. It includes a main pipe, branch pipes, secondary pipes, and branch ducts. The secondary pipes are connected to the main pipe, and the branch ducts are connected to the branch pipes via the secondary pipes. Each branch duct has multiple holes, which are evenly distributed along its length and staggered between adjacent holes. This application improves the dissolution efficiency and uniform distribution of gas in a liquid by employing a hierarchical pipe structure and optimized hole placement design. The device uses multiple evenly distributed and staggered holes to improve the uniformity of gas within the pipe, increase the contact area between the gas and liquid, optimize gas emission and dispersion, ensure uniform gas distribution in the liquid, reduce bubble formation, and guarantee stable gas diffusion and dissolution efficiency. This device can be widely applied in water treatment, aquaculture, and wastewater treatment, significantly improving gas dissolution efficiency.

The utility model relates to the technical field of construction materials, in particular to a screen vibration classifier for conveying construction materials, which comprises a mounting shell, a pressing top block and an anti-clogging scraping component, two connecting lug plates are fixedly connected to the side end face of the mounting shell in a bilateral symmetry manner, and suspension springs are mounted at the upper ends of the two connecting lug plates. The upper ends of the suspension springs are connected with lap joint plates, two limiting through grooves are formed in the side end face of the mounting shell in a bilateral symmetry mode, the lap joint plates are slidably connected to the interiors of the limiting through grooves, the side ends of the lap joint plates are fixedly connected with screen plates, and the screen plates are arranged in the mounting shell. A discharging sliding plate is arranged below the screen mesh plate. According to the utility model, the cylinder drives the movable rod and the pressing ejector block, and the movable ejector rod is matched with the impact plate, so that only strong vibration is generated on the screen plate, the screening of materials can be effectively promoted, and the generation of noise can be reduced.

The invention discloses a mine energy-saving cooling device and method utilizing freezing shaft remaining cold energy, and the method comprises the steps: 1, after saline water in a remaining freezing pipe is emptied, the inner wall of the remaining freezing pipe is subjected to rust removal treatment, and the transformed remaining freezing pipe is obtained; 2, the transformed remaining freezing pipe serves as a heat exchange part, and air is pressurized through a cold conveying and power unit and then conveyed into the transformed remaining freezing pipe; 3, the air exchanges heat with a low-temperature freezing wall outside the pipe and a surrounding stratum in the process of flowing downwards along the reformed remaining freezing pipe; and 4, the cooled air flows out of the bottom of the reformed remaining freezing pipe and then is conveyed to the working face through the cold energy tail end distribution unit, and after the working face is cooled, the cooled air is discharged out of the mine through the air return unit and conveyed to the cold conveying and power unit again. According to the method, the problem of mine heat damage can be solved by effectively utilizing the cooling capacity left in the well building period, and huge environmental and social benefits are generated in the aspects of saving energy, reducing consumption, reducing carbon emission and the like.