9results about How to "Small temperature change" patented technology

The present application relates to a kind of systems for improving the thermal efficiency of underwater transport platform fuel cell auxiliary system, including water circulation pipeline consisting of fuel cell stack, alloy hydrogen storage tank assembly, circulating water tank and circulating water pump in series;Hot water delivery pipeline;And, oxygen inlet pipeline and hydrogen inlet pipeline;The water outlet of the circulating water tank is divided into two routes, one is connected with fuel cell stack, another is connected with hot water delivery pipeline;The hot water delivery pipeline includes heating water tank that can provide hot water to fuel cell stack, and heating device in heating water tank and heat release by chemical reaction.The present application provides suitable circulating hot water in the temperature range of fuel cell stack and alloy hydrogen storage tank assembly by chemical reaction of heating agent and water heat release for fuel cell system when cold start, high-power variable load and continuous high-power operation, without increasing power consumption, so that the efficiency of the whole system is improved by more than 10%.

The application belongs to the technical field of building ventilation, and particularly relates to a building energy-saving ventilation equipment, which comprises a sewage vertical pipe and a sewage elbow pipe, the sewage elbow pipe is communicated with the sewage vertical pipe, an elastic air bag is fixedly installed on the vertical part of the sewage elbow pipe, the elastic air bag is arranged in a ring shape, an air suction pipe is fixedly inserted into the side wall of the sewage elbow pipe and communicated with the elastic air bag, an insulation machine cylinder is fixedly inserted into the side wall of the sewage elbow pipe and communicated with the elastic air bag. The building energy-saving ventilation equipment can automatically ventilate according to the type of excrement, is beneficial to energy saving and consumption reduction, the ventilation position is located around the closestool or squatting pan, the peculiar smell generated by the excrement can be timely dissipated, the temperature change in the toilet caused by ventilation and air exchange can be effectively reduced, the excrement blockage can be assisted to be discharged, the excrement can be automatically timely flushed, and the ventilation and air exchange in the toilet can be ensured to be timely.

This application relates to the field of radiator technology, and in particular to a radiator housing structure and heat dissipation device, including a housing body with a receiving groove in the middle. A honeycomb groove structure with a depth direction aligned with the depth direction of the receiving groove is provided within the receiving groove, and the height of the honeycomb groove structure is no higher than the receiving groove. This solves the problem that conventional radiator housings are not conducive to miniaturization and thinning.

The present application relates to the technical field of centrifuge control, and particularly relates to a centrifuge temperature control parameter optimization method and system, which comprises the following steps: collecting multiple parameters of the centrifuge to construct a sample data set; training an XGBoost stage classification model based on the sample data set, and outputting the working condition probability of the centrifuge, presetting the chamber temperature and refrigeration power of the centrifuge at the next moment, calculating the temperature precision penalty coefficient, the temperature change rate risk coefficient and the energy consumption penalty coefficient, dynamically adjusting the weights of the temperature precision penalty coefficient, the temperature change rate risk coefficient and the energy consumption penalty coefficient based on the proportion of steady speed, speed up and speed down in the real-time working condition to construct a target function, and calculating the comprehensive control error; selecting multiple groups of historical data most similar to the current working condition as reference data, selecting the compressor speed corresponding to the reference data that minimizes the comprehensive control error as the optimal speed by traversing each reference data, and delivering the optimal speed to the compressor for execution, thereby improving the temperature control precision of the centrifuge.

The application discloses a storage bottle and a storage device. The storage bottle comprises a bottle assembly, which comprises an inner bottle and an outer bottle arranged at intervals, the inner bottle is arranged in the inner part of the outer bottle and a sandwich is formed between the inner bottle and the outer bottle, one end of the outer bottle is provided with a bottle mouth, the inner bottle is surrounded to form a storage cavity, and the storage cavity is arranged to be open on one side of the bottle mouth. Wherein, the outer bottle is at least partially provided with a light shielding structure; a bottle cap is detachably connected to the bottle mouth; and a sealing element is arranged in a hollow ring shape and is sealingly arranged on the bottle mouth, and the inner ring surface of the sealing element is configured to be attached to the outer circumferential surface of the inner bottle body loaded in the storage cavity. In this way, the storage bottle provided by the application can prevent moisture and volatilization when storing the atomization substrate.

The application belongs to the technical field of semiconductor laser, and relates to a high-performance VCSEL semiconductor laser based on a diamond film. The application aims to solve the problems of low working temperature (600), wide line width and poor beam quality of the VCSEL. The main scheme comprises a substrate (101), a heat dissipation layer (102), a first electrode (103), a first DBR reflection layer (104), a first oxidation limiting layer (105), an active layer (106), a second oxidation limiting layer (107), a second DBR reflection layer (108), and an insulating heat dissipation layer (109) arranged from bottom to top. The insulating heat dissipation layer (109) is provided with a second electrode (110) connected with the second DBR reflection layer (108), and the second electrode is covered with a heat insulation layer.

The invention relates to a battery assembly, and the battery assembly comprises a plurality of battery cells which are in a cylindrical shape; the accommodating part is used for forming an arrangement space for accommodating the plurality of battery cells; the accommodating shell comprises an accommodating space used for accommodating the plurality of battery cells and the accommodating part; an accommodation bottom surface forming a bottom surface of the accommodation space and including a communication hole; an exhaust space provided across the accommodating bottom surface; and a communication hole formed in the accommodating bottom surface and communicating the accommodating space and the exhaust space, the accommodating member including: a support portion forming a bottom surface of the accommodating member and supported by the accommodating bottom surface; a curved surface portion extending from the support portion toward the plurality of cells and formed as a curved surface corresponding to a portion of the outer peripheral surface of each of the plurality of cells so as to face the plurality of cells; the through hole penetrates through the supporting part at the position corresponding to the communicating hole.

A slurry for plasma spraying, which contains 20 mass% or more and 80 mass% or less of alumina particles having a maximum particle diameter (D100) of 15 μm or less, with 1 or 2 or more selected from water and organic solvents as a dispersion medium, has a transmittance of 90% or less for a supernatant after 700 mL of the slurry for plasma spraying is put in a 1-L container having a height of 193 mm and left to stand at room temperature for 168 hours. By using the slurry for plasma spraying of the present application, an alumina-containing sprayed film having a low porosity, a sufficient film thickness, and a small temperature change in resistance per unit volume can be stably formed on a substrate, and a sprayed member having such a sprayed film can be used for an electrostatic chuck.

The invention provides a refrigerator control method, system and device and a storage medium, and the method comprises the steps that when a refrigerator meets a first condition, a compressor is controlled to refrigerate a cold storage chamber according to a first frequency; the compressor is controlled to refrigerate the freezing chamber according to the first frequency, and whether the difference value between the refrigerating temperature of the refrigerating chamber and a first preset value is larger than a first threshold value or not is obtained and judged; if yes, a compressor is controlled to refrigerate a freezing chamber according to a second frequency, and the freezing chamber communicates with the cold storage chamber until the freezing temperature of the freezing chamber reaches a second preset value; the second frequency is greater than the first frequency. According to the method, the refrigerating effect of the two chambers is guaranteed, high energy consumption caused by long-time high-load operation of the compressor can be avoided, and therefore optimal balance between refrigerating efficiency and energy consumption is achieved.