21results about How to "Reduce heat load" patented technology

This invention discloses a porous rectifying structure for the afterburner of a variable cycle engine, comprising a rectifying orifice plate installed in an annular channel between the turbine outlet and the flame stabilizer. The orifice plate is symmetrically arranged along its radial central axis, with the clogging area facing the turbine inflow and axially aligned with the heat shield inlet. The orifice plate height is 2 / 3 of the channel height between the central cone and the heat shield. The plate has uniformly distributed pores with an equivalent diameter of 10-20 mm along the radial direction, with a clogging ratio of 5%-25%. This invention forms a multi-stage mixing interface through the radially gradient porosity pore arrangement, promoting shear mixing of the high-temperature internal combustion gas and the external bypass gas. Simultaneously, the static pressure difference across the orifice plate drives the external bypass gas flow into the heat shield cooling channel, increasing the cooling flow rate, improving the uniformity of the upstream velocity field of the flame stabilizer, eliminating the recirculation zone inside the heat shield, reducing the thermal load on the casing wall, and controlling the total pressure loss to within 3%, achieving high-stability combustion and reliable thermal protection under a wide bypass ratio.

This invention discloses an end-face coated crystal optical element for a laser resonator and its fabrication method, belonging to the field of optical element fabrication. It includes an optical crystal, a high-reflectivity film disposed on one end face of the optical crystal, and a partially transmissive film disposed on the other end face. The high-reflectivity film sequentially includes Y-coatings along the end face of the optical crystal outwards. b F3 First Floor, H f O2 first layer, Y b F3 Second Layer, H f O2 second layer...Y b F3, Q layer, H f O2, Q layer. This invention utilizes Y... b 3+ Sensitization improves pump absorption efficiency and through Y b To E r Energy transfer effectively alleviates high-doped E r The self-termination effect in YAG lasers enables high efficiency and high energy output of 2940nm lasers, making them suitable for fields such as medical aesthetics and precision machining.

This invention proposes a long-life electric radiant tube heater, comprising an iron-chromium-nickel alloy heating wire, a ceramic body frame, a radiant tube sleeve, and heat dissipation fins. The iron-chromium-nickel alloy heating wire is threaded onto the ceramic body frame, and the iron-chromium-nickel alloy heating wire and the ceramic body form the electric heating core of the electric radiant tube. The radiant tube sleeve is fitted over the outside of the ceramic body frame, and the heat dissipation fins are fixed to the outer wall of the radiant tube sleeve to enhance heat dissipation. The long-life electric radiant tube heater proposed in this invention, by adding heat dissipation fins to the outside of the radiant tube sleeve, can improve heat dissipation efficiency, reduce the heat load on the material, and thus extend its service life.

This application discloses a carbon dioxide desorption tower, a carbon dioxide desorption method, and a decarbonization system, belonging to the field of chemical equipment technology. The carbon dioxide desorption tower includes a tower body, a catalytic unit, a liquid collecting device, and a reboiler. The tower body has a first receiving cavity, a first liquid inlet, a first liquid outlet, and a gas outlet; the catalytic unit is located below the first liquid inlet; the liquid collecting device divides the first receiving cavity into a first chamber and a second chamber; the reboiler has a reboiler inlet and a reboiler outlet, and the tower body has a second liquid outlet and a second liquid inlet. Liquid in the first chamber flows sequentially into the reboiler through the second liquid outlet and the reboiler inlet, and liquid in the reboiler flows sequentially into the second chamber through the reboiler outlet and the second liquid inlet; wherein, the liquid collecting device is provided with a venting section, and the first chamber and the second chamber are connected through the venting section. The carbon dioxide desorption tower of this application can improve desorption efficiency and reduce desorption energy consumption.

This utility model provides a photovoltaic curtain wall, belonging to the field of photovoltaic curtain walls. It includes a balcony body, on which an energy-saving photovoltaic installation assembly is installed. The photovoltaic installation assembly is equipped with a ventilation assembly for ventilation and heat dissipation. In this utility model, by setting up the photovoltaic installation assembly, the top of a first metal plate is installed on the balcony base, and the bottom of a second metal plate is installed on the bottom of the balcony body. Then, photovoltaic panels are installed inside the inclined installation groove, positioning the photovoltaic panels on the wall between the floor-to-ceiling windows of the two balconies. This design provides summer sun shading: the fixed tilt angle design maximizes the blocking of high-angle sunlight, reducing the heat load of solar radiation on the balcony; and winter light transmission: the tilt angle adapts to low-angle sunlight, reducing heating obstruction.

The utility model relates to welding auxiliary technical field, proposes a kind of high-frequency heating auxiliary friction stir welding device, the present design includes welding mechanism, high-frequency heater being arranged in the side surface of welding mechanism, and stirring needle is rotatably connected to the bottom of welding mechanism, and lifting adjustment assembly is arranged in the side surface of welding mechanism, and lifting adjustment assembly includes the sliding seat that can drive high-frequency heater and move vertically in the side surface of welding mechanism, horizontal adjustment assembly is arranged in the inside of sliding seat, and horizontal adjustment assembly includes two groups of the sliding sleeve that can drive high-frequency heater and slide horizontally and slide lock;The present design is through high-frequency preheating and two big innovations of multi-degree-of-freedom adjustment, solves the pain point that stirring head is easy to wear and tear, not flexible in traditional friction stir welding adjustment, significantly improves welding efficiency, quality and equipment life, and all mechanical design is applicable to industrial high-strength application scene.

The application discloses a continuous detonation jet flow initiation and combustion-assisted afterburner, which comprises an outer channel case, an inner channel case, a flow regulation support plate arranged radially on the inner channel case, a center cone, a duty combustion chamber arranged on the flow regulation support plate, a V-shaped flame stabilizer arranged on the flow regulation support plate corresponding to the duty combustion chamber, a continuous detonation jet flow initiator arranged on the outer wall of the inner channel case, and a porous stationary vortex injector arranged at the jet flow outlet of the continuous detonation jet flow initiator. The inner channel utilizes continuous detonation combustion products as the conventional afterburning after the duty flame is strengthened and stabilized, and the outer channel is detonated for afterburning through the continuous detonation jet flow initiation mechanism. The continuous detonation partitioned strengthened combustion organization scheme is helpful to realize the wide-range high-efficiency low-resistance working requirement of the advanced afterburner.

A separation and recovery device for thiophene-containing BT oil includes a BT oil thiophene removal system, a first distillation column, and a second distillation column. The inlet of the BT oil thiophene removal system is connected to a BT oil source, and the outlet is fed to the first distillation column via a first pipeline. The outlet of the condenser at the top of the first distillation column forms a first benzene outlet, and a first reflux pipeline is provided connected to the reflux port of the first distillation column. The bottom of the first distillation column is fed to the second distillation column via a second pipeline. The top of the second distillation column is connected to the inlet of the reboiler heat exchange medium channel at the bottom of the first distillation column via a third pipeline. The outlet of the reboiler heat exchange medium channel at the bottom of the first distillation column forms a second benzene outlet, and a second reflux pipeline is provided connected to the reflux port of the second distillation column. This invention has a simple structure, is easy to operate, and can effectively separate and recover benzene and toluene from BT oil with high purity. It also effectively reduces the heat load of separating benzene and toluene, and can handle high-concentration thiophene petroleum benzene.

This utility model relates to the field of air compressors, and more particularly to an air compressor for glass manufacturing. It includes an air compressor housing, a first air inlet plate rotatably connected to the left side of the housing, a guide frame on the first air inlet plate, a radiator in the middle of the housing, a heat dissipation vent on the upper right side of the housing, a cooling fan mounted on the vent, a heat dissipation frame mounted on the upper right side of the housing, and a second air inlet plate rotatably connected to the right side of the housing. This utility model precisely guides airflow through the dual-guided first and second air inlet plates, significantly reducing inlet turbulence losses and minimizing vortices. The converging heat dissipation frame accelerates exhaust through the Venturi effect, enhances the suction force of the cooling fan, significantly improves heat exchange efficiency, solves the problem of high-temperature compressed air retention, and reduces equipment heat load and operating energy consumption.

The purpose of this invention is to provide a high-efficiency cooling structure for turbine blade crowns with a rotary cooling channel, belonging to the field of gas turbines. It includes blades, rim plates, tenons, and a crown. The crown is located above the blades, which are fixed to the tenons by the rim plates. A rotary cooling channel is installed inside the crown. The upper and lower surfaces of the crown have film cooling holes, and the pressure side of the blade has film cooling holes on its surface. Part of the cold air entering the blade flows out through the film cooling holes on the blade surfaces, while the other part enters the rotary cooling channel through the film cooling holes on the lower surface of the crown and flows out through the film cooling holes on the upper surface of the crown. This invention, by introducing a rotary cooling channel structure into the turbine blade crown, enhances internal convective heat transfer and simultaneously achieves leakage control. The circular film cooling holes form a surface isolation film, and this dual cooling mechanism significantly improves cooling performance, overcoming the limitations of traditional crowned blades that rely on simple geometric barriers.

The application discloses a kind of grilling machines, including upper baking tray, lower baking tray, the first heating part of heating upper baking tray, and the second heating part of heating lower baking tray, first heating part and second heating part are annular structure, first heating part includes first outer ring section, first inner ring section, and the first connecting section of the end of first outer ring section and the end of first inner ring section, second heating part includes second outer ring section, second inner ring section, and the second connecting section of the end of second outer ring section and the end of second inner ring section, the downward projection of first outer ring section at least partially falls between two adjacent second outer ring sections, and the downward projection of first inner ring section at least partially falls between two adjacent second inner ring sections. By the layout of the staggered projection of first heating part and second heating part, first heating part can compensate the temperature of the area not covered by second heating part directly by heating tube, so that the temperature distribution in the whole cooking cavity is more uniform.

The present application relates to a fuel cell cooling system mounted on a vehicle, having: a flow path of a refrigerant; a cooler that cools the refrigerant in the cooler flow path; a fuel cell that is cooled by heat exchange with the refrigerant in the fuel cell flow path; a heat generating body that is cooled by heat exchange with the refrigerant in the heat generating body flow path; a first pump and a second pump that send out the refrigerant in the fuel cell flow path and the refrigerant in the heat generating body flow path, respectively; and a control circuit. When the vehicle is started, the control circuit implements a first process and a second process, the first process is a process of operating the first pump in a state where the second pump is stopped, and the second process is a process of operating the second pump in addition to the first pump if the temperature of the refrigerant in the fuel cell flow path or the cooler flow path exceeds a first reference value in the first process.

This invention relates to the field of steelmaking equipment technology, specifically to a rapid sampling probe for non-oxidizing molten steel in a converter. It includes a probe body, with a detection module and a sampling module connected to its front end, and a connector connected to its rear end. A wire connects the detection module to the connector, and a gas pipe connects the sampling module to the connector. A protective cap is mounted on the front end of the probe body, comprising an iron cap rotatably connected to the probe body and a ceramic frame located outside the iron cap. The ceramic frame includes a fixing plate and several support bars. The fixing plate is connected to the end of the iron cap furthest from the probe body, and the support bars connect the fixing plate to the open end of the iron cap. The outer side of the support bars is arc-shaped. A stable dynamic "evacuation zone" is formed between adjacent guide bars. This effectively isolates the high-temperature molten steel outside the ceramic frame, minimizing direct and continuous contact between the molten steel and the surface of the inner iron cap.

This invention relates to the field of membrane separation process control technology, and provides a full-membrane method for concentrating and purifying iron phosphate by makeup water reuse regulation. The system includes a white material tank, a pre-concentration and washing unit, an intermediate white material storage tank, a washing and concentration unit, and a purified white material storage tank connected in sequence. It also includes a white material analysis module that uses solid content uniformity as a prerequisite check combined with conductivity distribution characteristics to determine the membrane inlet status into four types: normal material inlet, abnormal material flow, localized abnormal mixing, or overall high salt load. A membrane segment evaluation module assesses the effectiveness of makeup water using both desalination release degree and filtration impedance as dual indicators. Based on this, a tiered decision-making module determines the average makeup water strategy for the entire membrane segment or localized makeup water strategies and allocates makeup water to different membrane segments based on effectiveness. This system, through the coordinated control of accurate membrane inlet status identification and quantitative assessment of makeup water effectiveness, significantly reduces energy waste and concentration load caused by ineffective makeup water.

The utility model belongs to air compressor heat energy recycling technical field, concretely relates to air compressor heat energy recycling device, including hot -blast room, the one side face upper side intercommunication of hot -blast room is provided with gas pipeline, the one end intercommunication of gas pipeline is provided with heat exhaust fan away from hot -blast room, the inside upper side of hot -blast room is provided with circulating fan at equal intervals. Start circulating fan, circulating fan can blow the hot air that blows into hot -blast room inside continuously to downside, and the hot air flows to downside, can continuously pass the upper level netted conveyer belt and the lower level netted conveyer belt, and the material that the upper level netted conveyer belt and the lower level netted conveyer belt convey to upside are handled to dry, thereby can effectively recycle the large amount of heat that air compressor generates, can be applied to material drying, avoid this part of heat energy direct emission to the environment, thereby avoid causing energy waste, also can reduce environmental heat load to some extent.

This invention relates to the field of rail vehicles, and provides a method and apparatus for calculating the heat transfer coefficient of a glass surface. The method includes: obtaining the actual operating speed of the rail vehicle and the actual length of the side window; and calculating the heat transfer coefficient of the glass surface based on the actual operating speed and the actual length. According to the embodiment of this invention, the method for calculating the heat transfer coefficient of the glass surface can be derived by obtaining the actual operating speed of the rail vehicle and the actual length of the side window, thereby providing guidance for the design stage of rail vehicles. This not only creates a comfortable riding environment for passengers and onboard staff, but also reduces the heat load of the rail vehicle's air conditioning system.

The utility model discloses a device that improves iron ore direct reduction rotary kiln discharge section temperature, and the discharge end of rotary kiln is provided with high temperature flue gas extraction device, air heat exchanger, dust removal system, granular coal spray gun, the inlet of air heat exchanger is connected to fan, and the export is connected to granular coal spray gun, high temperature flue gas extraction device is used to extract the high temperature flue gas in rotary kiln, and the high temperature flue gas is preheated air after air heat exchanger, then, after the purification of dust removal system and the pressurization of pressurizing machine, discharges, the high temperature gas of heat exchange in air heat exchanger is passed into granular coal spray gun and is used as the power source of granular coal injection and sprays granular coal from the kiln head of rotary kiln to the kiln.

This invention relates to the field of liquid crystal display technology, and more particularly to an intelligent driving method and system for liquid crystal displays. The method includes the following steps: recording the current decay waveform of the source driver charging the pixel capacitor during pixel charging; calculating the charging time constant based on the current decay waveform; calculating the current pixel capacitance value using the charging time constant and the transistor on-resistance; converting the current pixel capacitance value into an orientation angle corresponding to the pixel orientation state; comparing the current orientation angle with the target orientation angle corresponding to the pre-acquired target grayscale, and calculating the orientation angle deviation; and using a driving sequence containing multiple voltage pulses based on the orientation angle deviation. This invention achieves closed-loop precise driving based on pixel state feedback by deriving the pixel capacitance from the current decay and converting it into the pixel orientation state, overcoming the problem of long-term open-loop blind driving in liquid crystal displays.

This invention discloses an intelligent hierarchical heat dissipation system and method based on Particle Swarm Optimization (PSO) multi-objective optimization with a double-layer chimney effect. The system forms an air insulation interlayer through a double-layer insulated shell structure, utilizing the chimney effect to drive external circulation to block solar radiation heat; simultaneously, internal circulation is driven by bottom intake fans and top exhaust fans to remove heat from components. The intelligent control unit employs the Particle Swarm Optimization (PSO) algorithm, using temperature deviation, energy consumption, and operating cost as objective functions to dynamically adjust the collaborative working mode of five fans. This invention achieves precise temperature control and optimal energy efficiency for outdoor distribution boxes under strong sunlight and full-load conditions, meeting and falling below the temperature rise limit requirements of GB / T 7251.2, demonstrating significant energy-saving effects and safety reliability.

The utility model provides a kind of sealing assembly and vertical fused salt pump, the sealing assembly includes the pump seat with mounting hole, pump shaft, throttle bushing, gland, elastic connecting structure, and pump shaft is equipped with shaft sleeve;Throttle bushing connects the gap between pump seat throttle bushing and shaft sleeve and forms sealed channel, along gas leakage direction, sealed channel is divided into first sealing section and second sealing section, and damping sealing structure for generating reverse damping is equipped in first sealing section, and sealing filler is filled in second sealing section;At least part of gland can be inserted into second sealing section;Elastic connecting structure is used to push gland and compress sealing filler automatically by the elastic force of elastic connecting structure to maintain the necessary sealing specific pressure of sealing filler, and sealing filler cooperates with damping sealing structure and forms two-stage sealing barrier of active damping pressure reduction and end filler plugging, which significantly improves sealing effect.

This invention discloses a centralized control method and system for hot gas defrosting. Through data acquisition, frost layer prediction and triggering, defrosting execution, and optimization feedback steps, it achieves intelligent and precise control of the defrosting process. The system includes a sensor group, an edge data acquisition module, a local controller, a communication module, a cloud-based centralized control platform, and actuators. This invention employs a fusion prediction model, combining rule-based rapid scoring with machine learning-based accurate prediction to dynamically assess frost risk and trigger defrosting, avoiding the blindness of traditional timed defrosting. Simultaneously, it ensures system stability through grouped sequential control and safety monitoring, and utilizes a cloud platform to aggregate multi-site data for global optimization scheduling and model iteration. This invention effectively reduces defrosting energy consumption, maintains stable storage / cabinet temperatures, and improves the operating efficiency and intelligent management level of the refrigeration system.