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50results about How to "Less radiant heat" patented technology

Organic light emitting diode (OLED) blood detection device

The invention discloses an organic light emitting diode (OLED) blood detection device. The device comprises a shell, a light emitting device, a placement unit, a light collecting device, a calculating device, an output device and a power supply module, wherein the light emitting device comprises an OLED light source, and is used for emitting multiple irradiation beams with different wavelength ranges and irradiating an object which is to be tested and is placed on the placement unit; the light collecting device is used for collecting reflected light produced after the object to be tested is irradiated by the light emitting device; the calculating device is used for calculating according to a signal of the reflected light collected by the light collecting device so as to obtain blood composition data, and sending same to the output device for outputting. The device uses the OLED light source as an irradiation light source, and can detect the contents of various components in the blood of a human body by using reflection of light; the device is accurate in measurement, simple in structure, convenient to carry, low in energy consumption, less in radiation heat, light in mass and bendable, and has the functions of being portable and self-powered, realizing data transmission, and the like while being capable of accurately measuring the blood composition, and the OLED light source used by the device is wide in wavelength range.
Owner:马东阁

High heat-resistance hollow out substrate working platform capable of multiple-surface depositing CVD diamond film

The invention discloses a high heat resistant hollow substrate worktable which can deposit CVD diamond films in a plurality of facets in view of the problems of the inconsistence of temperature fields and reaction gas flow fields on a substrate side along the thickness direction, high residual stress and bad thickness uniformity of deposited CVD diamond films, etc., caused by initially slow temperature rising and fast cooling existing in present compulsory cooling worktables; wherein, the invention is characterized in that screens (2) are positioned inside an upper frame (1) which is connected with a bearing (4) through a bracket (3), and a substrate (6) used for depositing the CVD diamond films is uniformly placed on the screens (2), and a plane for placing the substrate (6) on the screens (2) is parallel with a lower bottom surface of the bearing (4); the invention ensures that the substrate temperature rises rapidly when the diamond is deposited at the beginning and the substrate temperature falls slowly when the deposition of the diamond is over, which improves the uniformity of the reaction gas flow field; the thickness and quality of the diamond films of substrate sides and upper surfaces deposited on the substrate worktable are consistent and the residual stress of the CVD diamond films is reduced, which is especially suitable for the surface deposition of hard alloy cutting tools.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Heat insulation protection device for vacuum preheating electron beam welding of pressure-resistant shell

The invention relates to a heat insulation protection device for vacuum preheating electron beam welding of a pressure-resistant shell. The heat insulation protection device is arranged outside the pressure-resistant shell, and a framework is formed by connecting detachable stainless steel plates through bolts. The heat insulation protection device comprises an upper hemisphere heat insulation protection device body and a lower hemisphere heat insulation protection device body, wherein the upper hemisphere heat insulation protection device body is directly and fixedly connected with the uppersurface of an outer heater to form a cap-shaped structure, the lower hemisphere heat insulation protection device body is located below the outer heater, the lower hemisphere heat insulation protection device body is fixed to a rotary table to form a bowl-shaped structure, multiple layers of high-reflection metal foil are laid outside the framework for heat insulation protection, the center of theupper hemisphere heat insulation protection device body is arranged to be of a smooth cylindrical structure, and a heating circuit and a temperature thermocouple wire penetrate through the cylindrical structure. The heat insulation protection device can play a good role in heat insulation protection during vacuum preheating welding of the pressure-resistant shell, the heating efficiency is improved, and meanwhile the problem of winding in the circuit moving process is solved.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Phase-change energy-saving window with ventilation function

The invention discloses a phase-change energy-saving window with a ventilation function, and relates to the technical field of windows. The phase-change energy-saving window comprises a multi-layer phase-change energy-saving window body, ventilation systems and a control system, wherein the multi-layer phase-change energy-saving window body comprises a window frame, common glass and coated glass,the multi-layer phase-change energy-saving window body is provided with four layers, and the four layers are the common glass, the coated glass, the common glass and the common glass sequentially fromoutside to inside, the common glass and the coated glass are both fixed to the window frame, an air layer is formed between the common glass on the outermost layer and the coated glass, a phase-change layer is formed between the coated glass and the common glass in the middle, the phase-change layer is filled with phase-change material paraffin, the ventilation systems are arranged at the upper part and the bottom of the multi-layer phase-change energy-saving window body, and the control system is arranged outside the multi-layer phase-change energy-saving window body and connected with the ventilation systems. According to the phase-change energy-saving window with the ventilation function, the glass window is improved through phase-change materials, multi-mode operation of the ventilation systems is combined, the heat utilization rate is increased, energy is saved, and the indoor air quality is improved.
Owner:NORTHEAST GASOLINEEUM UNIV

High-temperature molten salt electrolysis rare earth metal slotting device and method

A high-temperature molten salt electrolysis rare earth metal bath discharge device comprises a vacuum liquid storage bag with a metal liquid outlet, wherein the vacuum liquid storage bag is tightly fixed on a turn type lifting platform car, one end of the vacuum liquid storage bag is communicated with a siphon inserted into a molten salt electrolysis bath, the other end of the vacuum liquid storage bag is communicated with a vacuum buffer tank through a metal corrugated pipe, the vacuum buffer tank is connected with a vacuum pump, the invention further provides a method using the high-temperature molten salt electrolysis rare earth metal bath discharge device, the siphon principle is used in the invention, the molten metal liquid is sucked into the vacuum liquid storage bag, then a plurality of moulds are cast, so that the bath discharge time is shortened, the loss of heat of a bath body is reduced, the fluctuation of the condition of the bath is avoided, the defects of high labor strength and poor operating environment and the like are overcome, the production cost is lowered, the product quality is improved, the stability is good, the metal liquid is guaranteed to go smoothly from the electrolysis bath to casting to moulding, and the problem of the hardly acceptable difficulties in taking out the rare earth metal and sealing a casting chamber after the casting on the site is also avoided.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Energy-saving device and method for polycrystalline silicon reduction furnace with polycrystalline silicon insert heat insulation layer

The invention belongs to an energy-saving device and an energy-saving method for a polycrystalline silicon reduction furnace with a polycrystalline silicon insert heat insulation layer. A distance between a heat insulation layer consisting of stainless steel tubes and polycrystalline silicon inserts and an inner wall of a furnace body is 25 to 250mm; the heat insulation layer is connected with the inner wall of the furnace body, and the furnace body is fixed on a base through a flange; a base plate air inlet is formed in the base, hydrogen or hydrogen silicon tetrachloride gas enters an annular air inlet tube through the base plate air inlet, a square opening is formed in the annular air inlet tube, and the hydrogen or hydrogen silicon tetrachloride gas enters a gap between the furnace body and the heat insulation layer through the annular air inlet tube, and is filled in the gap; by adopting the heat insulation layer consisting of a stainless steel tube cylindrical frame and the polycrystalline silicon inserts, radiant heat-transfer loss of silicon rods in the furnace to a wall surface of the furnace body is reduced, and high-purity polycrystalline silicon products are deposited on the polycrystalline silicon inserts on the heat insulation layer; the polycrystalline silicon inserts on the heat insulation layer are not polluted by metals in the process of growing the polycrystalline silicon by employing a frame cooling system; and due to the adoption of a wall surface protection system, a mirror surface on the inner wall of the furnace body is not polluted.
Owner:TIANJIN UNIV

Desertification land treatment method and treatment structure

The invention provides a desertification land treatment method and structure, and the treatment method comprises the steps: the surface layer of an undisturbed sandy soil layer of a to-be-treated area is covered with sludge, the sludge contains reservoir sludge, and the upper layer of the sludge is doped with vegetation seedlings or grass seeds, so that an organic matter layer is formed on the upper layer of the sludge, and a sedimentary layer is formed on the lower layer of the sludge; plants are planted on the organic matter layer. According to the desertification land treatment method and the desertification land treatment structure, wind prevention and sand fixation can be effectively achieved, water evaporation of undisturbed sandy soil is slowed down, the water binding capacity and fertility of the desertification land are improved, the soil forming process of the undisturbed sandy soil is accelerated, and soil conditions and physical conditions beneficial to growth and development of vegetation are provided. In a further scheme, the plant-cutting composite sand barrier is improved through reservoir sludge, germination and breeding of vegetation are promoted, and the windproof effect of the sand barrier can be effectively improved.
Owner:中交生态环保投资有限公司

Miniaturized 5G base station antenna

The invention belongs to the technical field of 5G base stations, and particularly relates to a miniaturized 5G base station antenna. The antenna comprises a heat dissipation base, an antenna body and a light shield, heat dissipation holes are formed in the lower surface of the heat dissipation base, a main supporting column is fixedly installed on the upper surface of the heat dissipation base, and the light shield is installed on the upper surface of the main supporting column; a damping device is arranged on the lower surface of the heat dissipation base, and the damping device is used for conducting damping and shock absorption on the heat dissipation base; and a cooling device is arranged on the upper surface of the heat dissipation base and is used for spraying water mist to cool the antenna body. According to the miniaturized 5G base station antenna, the cooling device is arranged, the non-contact temperature sensor detects the temperature of the antenna body and transmits the temperature data to a PCL module, and when the temperature is too high, the PCL module controls the annular sprayer to spray water mist to the antenna body for cooling, so that the problems that an existing 5G base station antenna is poor in heat dissipation performance, and once the temperature is too high, downtime of the G base station is caused are effectively solved.
Owner:HEILONGJIANG TONGXIN COMM CO LTD

A kind of heat insulation protection device for vacuum preheating electron beam welding of pressure-resistant shell

The invention relates to a heat-insulation protection device for vacuum preheating electron beam welding of a pressure-resistant shell. The heat-insulation protection device is arranged outside the pressure-resistant shell, and a skeleton is formed by detachable stainless steel plates connected by bolts, and includes an upper hemisphere spacer. A thermal protection device and a lower hemisphere thermal insulation device, wherein the upper hemisphere thermal insulation device is directly and fixedly connected with the upper surface of the outer heater to form a cap-like structure, the lower hemisphere thermal insulation device is located below the outer heater, and the lower hemisphere thermal insulation device The device is fixed with the turntable to form a bowl-shaped structure. The outside of the skeleton is covered with multiple layers of highly reflective metal foils for thermal insulation protection. The center of the upper hemisphere thermal insulation protection device is set as a smooth cylindrical structure. With the cylindrical mechanism, the present invention can play a good heat-insulating protection effect during the vacuum preheating welding of the pressure-resistant shell, improve the heating efficiency, and simultaneously solve the problem of winding during the movement of the line.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Electronic grade polysilicon reduction furnace and production method of polysilicon

The invention discloses an electronic-grade polysilicon reduction furnace. The reduction furnace includes a chassis and a furnace body covered on the chassis. The chassis is provided with multiple pairs of electrodes, multiple nozzles and at least one exhaust port. The multiple nozzles are aligned from inside to outside. N layers of concentric circles with increasing radii are arranged in layers; the nozzles are straight tubes; the radii of the concentric circles from small to large are the first nozzle layer, ... the nth nozzle layer, the direction of the nozzle outlet on the first nozzle layer and the chassis Vertical, the direction of the outlet of the nozzle located in the remaining nozzle layer faces the vertical center line of the reduction furnace and forms an included angle of 75-85 degrees with the chassis. The invention also discloses a polysilicon production method. The new arrangement of nozzles effectively ensures the uniform distribution of gas and temperature in the reduction furnace, reduces the flow dead zone and local high temperature zone in the furnace; and strictly controls the molar ratio of raw material gas and the growth temperature of silicon rods. The present invention can control the proportion of popcorn material at 0-10%, and the reduction power consumption is at 50-65Kw*h/Kg Si.
Owner:江苏鑫华半导体科技股份有限公司

A temperature compensator for modal test structure in vacuum environment

The embodiment of the present invention relates to a temperature compensator for a modal test structure in a vacuum environment, comprising: a thermal vacuum test chamber body, an upper compensation plate and a lower compensation plate, etc. The test piece is fixed on the inner rear wall of the thermal vacuum test chamber body. The upper compensation plate and the lower compensation plate are respectively located on the upper and lower sides of the test piece. The material and thermal load of the upper compensation plate and the lower compensation plate are the same as those of the test piece. The lower compensation plate covers most of the circumferential position of the test piece, which can effectively reduce the heat radiation of the test piece to the surrounding space; the ring base is used to fix the upper compensation plate and the lower compensation plate behind the body of the thermal vacuum test chamber. On the wall, the threaded hole is used to cooperate with the screw. The ring base is fixed on the inner rear wall of the thermal vacuum test chamber body by using the screw. This connection method makes the connection between the upper compensation plate and the lower compensation plate stable and avoids the influence of external force. While vibrating, avoid affecting the test piece.
Owner:INST OF MECHANICS CHINESE ACAD OF SCI
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