1171results about How to "Consistent temperature" patented technology

The invention relates to a comprehensive control method for the outlet temperatures of a heating furnace, belonging to the field of furnace temperature control technology. The invention is characterized in that branch balance control makes the outlets temperatures of a multi-branch heating furnace uniform, and automatic load lifting and dropping can be realized. By using state feedback prediction control of measured states and feedforward control, the method effectively improves the anti-interference ability. A state space model of the heating furnace is obtained by mechanism modeling, in no need of testing devices. An on-line model is self-adaptive, which effectively overcomes process characteristic change and improves the rate of putting into operation. Low-value fuel can realize idea valve location interval control, thus saving high-value fuel. The comprehensive control of the outlet temperatures ensures the uniform and stable outlet temperatures of the heating furnace, which is easy to operate and economical.

The invention discloses an underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device, which is arranged on the inner wall of a drilled hole or a sleeve and consists of a packer system, a liquid sample inlet system, a gas sample inlet system, an automatic multi-way valve, a sampling system, a temperature control system, and an external pressure/flow control system, wherein a thermal-insulation layer or temperature control system covers the outside of the entire sampling device. The device accurately controls the layer under ground fluid sampling positionto realize gas and liquid fluid sampling at different layer positions of a stratum, ensures the temperature and pressure in a sampling process are consistent with those of the underground fluid, and improves the pressure and temperature-retaining degree of the fluid in the sampling process. The principle of the device is simple, the parts are assembled simply and the device is suitable for multilayer sampling in a drilled well and underground gas-liquid two-phase fluid sampling.

The package structure for a high-speed semiconductor light emission assembly comprises: a dish-type case with RF connector, a semiconductor refrigerator to control the work temperature of emission chip, a KOVAR metal heat sink, a medium heat sink substrate, a light emission device, a thermistor, a backlight detector, the metal wire to connect dc connection electrode and case pin, a coplanar waveguide transmission lie on medium substrate, and optical coupling assembly. Wherein, it uses BTF standard package form for dc terminals outside the case.

The invention provides a novel kitchen garbage fermentation device and a usage method, which belongs to the environmental protection device field. The device provided by the invention comprises a U-shaped fermenter, a feed inlet, a discharge port, a fragmentation stirrer, a variable frequency motor, a blower, a ventilation duct, an air vent, a microbe inlet pipe, a charging nozzle, an electric heating pipe, a water interlayer, a protection layer, a deodorizing tower, a support and the like. The fragmentation stirrer is composed of a stirring horizontal shaft, a blade support and a triangle cone blade with arc bottom. Several electric heaters are arranged in the interlayer of a double layer U-shaped fermenter. The variable frequency motor drives the fragmentation stirrer to perform fragmentation stirring on the kitchen garbage. The electric heating pipe heats the water interlayer so that the temperature of the fermenter can be kept between 40-60 DEG C, air is introduced in the ventilation duct through the blower, and a microbe liquid bacteria agent is inoculated in the fermenter through a nozzle on the microbe inlet pipe. The product is discharged out of the fermenter through the discharge port, thereby the minimization of the kitchen garbage can be realized, and the product can be used as a soil organic fertilizer conditioning agent.

The invention discloses a process for drying fresh momordica grosvenori, comprising the following steps: (1) selecting and cleaning fresh momordica grosvenori without being damaged on skins, and disposing holes on the top stems and the corresponding bottom areolas of the momordica grosvenori; (2) putting the momordica grosvenori with holes in water of 80-100 DEG C, deactivating, boiling for 30-40 seconds, taking out and draining; and (3) putting the deactivated momordica grosvenori into vacuum microwave drying equipment, drying in vacuum at the frequency of 850-900MH and the low temperature of 40-50 DEG C for 5 minutes, starting an infrared heater to heat the skins of the momordica grosvenori for 10-15minutes, and repeating the step (3) for 4-5 times to obtained the dried momordica grosvenori. The detection shows that the momordica grosvenori dried by adopting the process contains water of 1.5% or less, is light yellow, bright and attractive, retains the nutrients of more than 75%, has high content of momordica grosvenori enzyme, tastes good, has no smell of scorching and is not bitter.

A technology for continuously cooking rice includes such steps as washing rice, immersing, quantitatively loading in boxes, microwave cooking and outputting rice in boxes. Its apparatus is composed of screw conveyer, high-position rice tank, rice washer, redox washer, jet-type sprayer, step impurities remover, rice immersing container, oblique rich dropper, quantitative loaders of rice and water, and continuous microwave cooker. Its advantages are high speed, high utilization rate of heat energy, and high productivity.

The invention discloses a device for coating graphene on surfaces of metal foils. The device comprises a control unit, and an unwinding unit, a coating printing device, a baking unit and a winding unit arranged in sequence in a moving direction of the metal foils; the metal foils are aluminum foils or copper foils; the coating printing device comprises a pressing roller, a driving silica gel roller and a driving steel roller laminated from top to bottom; the driving silica gel roller and the driving steel roller are rotated in opposite directions by keeping a micron gap; the driving steel roller is dipped in a colloid pool with viscous materials; and a substrate is arranged between the pressing roller and the driving silica gel roller. The device realizes uniform spraying of materials with submicron thicknesses and thinner layers on the surface of the substrate to meet the thickness requirements of the graphene coated on the metal foils, and achieves excellent adhesion to effectively reduce the contact resistance between carbon particles and the metal foils.

The invention relates to a road surface construction material, in particular to a plant-mixed warm recycled asphalt mixture and a preparation method thereof. The plant-mixed warm recycled asphalt mixture comprises the following components in percentage by mass: (20-70)% of RAP, (0 to 8)% of new aggregate, (0 to 8)% of limestone mineral powder, (0.5 to 5)% of new asphalt and (0 to 0.5)% of recycling agent, wherein the total mass percentage is 100%, the new asphalt has penetration of less than 75 (0.1mm) and a softening point of more than 48 DEG C, and the recycling agent has kinematic viscosity of (50-60000) mm2 / s at a temperature of 60 DEG C. The plant-mixed warm recycled asphalt mixture provided by the invention has the advantages of simple process, no grey material, good recycling effect, low cost, wide adaptability and good road performance.

The invention discloses a deep water pipeline composite polyurethane elastomer heat insulation layer casting molding device. A subsection machining and integral assembly mode is adopted in a die, heating temperature control devices are arranged corresponding to subsection assemblies in subsections, and heating oil passages are arranged opposite; a positioning structure and a sealing structure arearranged in the parting surface of the die; and the die is provided with a die opening device, a die closing and an inclination device controlled by a hydraulic system. The device realizes mechanicaloperation of casting molding of a product, and has practical structure and strong operability; by adopting subsection machining in the die, the machining difficulty and the machining cost are reduced, and the machining precision and the machining quality are improved; and meanwhile, three sets of heating devices are used corresponding to three sections of assemblies, so that the heating temperature difference is reduced, the quality of the cast product is improved, automatic control of the temperature of the casting die can be realized, the heat insulation time of the polyurethane heat insulation layer in the die is shortened, and the service efficiency of the casting die is improved.

The invention discloses a control method for bearing steel network carbides and banded carbides and bearing steel. The temperature of a finishing pass during hot rolling of the bearing steel is controlled to be within the range of 830 to 870 DEG C, and a large number of carbides are prevented from being separated out; then cooling equipment is utilized for performing water cooling on eventually rolled bar materials, the temperature of the bar materials is made to rapidly pass through the temperature range being 700 to 850 DEG C, the carbides are forcefully inhibited from being separated out, and the proportion of cementite in pearlite is increased; and meanwhile, the temperature of the bar materials after water cooling is controlled to be 600 DEG C to 650 DEG C, and a bainite or martensite structure is prevented from being generated. Production proves that the effect on reducing formation of the bearing steel network carbides and banded carbides is remarkable through the method, the grade of the network carbides in the bearing steel is decreased to the second grade or third grade from above third grade in GB/T18254 and the metallographic phase form of the carbides is a semi-net shape or a mass point shape, and the grade of the banded carbides in the bearing steel reaches the first grade in GB/T18254.

The invention relates to a water-cooled engine body, in particular to an air cylinder body of a wet-type cylinder liner engine. The air cylinder body comprises a cylinder body and a cylinder liner, and is characterized in that an upper positioning belt and a lower positioning belt are arranged on the cylinder liner; the inner surface of the cylinder body is provided with a convex ring; a cooling water channel formed between the lower positioning belt and the convex ring is used as a first cooling chamber; the cooling water channel formed between the convex ring and the upper positioning belt is used as a second cooling chamber; the cooling water channel formed over the upper positioning belt is used as a third cooling chamber; the cross-sectional area of the second cooling chamber is less than that of the first cooling chamber; and the cross-sectional area of the third cooling chamber is less than that of the second cooling chamber. The invention has the advantages that the air cylinder body can raise the flow velocity of cooling liquid, increase the flow rate of the cooling liquid, raise the heat dissipation rate of a high-temperature area, ensure that the whole cylinder liner is uniform in temperature, guarantee normal fit clearances among parts of the cylinder body and guarantee the normal work of the engine.

The invention discloses a method for improving phosphorus diffusion uniformity of a solar cell. The method comprises the following steps of: (1) placing a silicon slice in a diffusion furnace and raising the temperature of each region in the furnace to 700 to 780 DEG C, wherein the environment in the furnace is uniform nitrogen atmosphere, and the flow rate of the nitrogen gas is 8 to 30L/minute; (2) simultaneously introducing phosphorus-carrying source gas at the speed of 0.8 to 2L/minute and dry oxygen at the speed of 0.4 to 2.5L/minute after the temperature is stable, ensuring that the gas environment in the furnace is uniform, and diffusing for 10 to 40 minutes; (3) stopping introduction of the phosphorus-carrying source gas source and the dry oxygen, synchronously and uniformly raising the temperature of each region in the furnace at the rate of below 5 DEG C/minute, raising temperature to 810 to 900 DEG C and diffusing for 10 to 40 minutes; and (4) reducing temperature and discharging out of a boat. Through uniform gas and consistent temperature in the furnace, the phosphorus diffusion uniformity during preparation of the battery plate is improved, and the conversion efficiency of the solar cell is improved to a certain extent.

The present invention is fluid catalytic cracker with fast separation of oil gas from catalyst. The fluid catalytic cracker has a riser with outlet connected to thick coiled pipe inside the tube settler, a stripping device below the tube settler, a catalyst regenerator connected through pipe tot lower end of the stripping device, and a top coiled pipe outside the tube settler. The fluid catalytic cracker can realize the efficient and fast gas-solid separation in the separation efficiency as high as 99.99 %, reduce average oil gas residence time to less than 2-3 sec and decrease scaling, and has compact structure and low cost.

The invention relates to an automobile engine cooling water jacket structure integrating an exhaust manifold. The automobile engine cooling water jacket structure comprises a cylinder body water jacket, a cylinder cover water jacket and an air cylinder mat; the automobile engine cooling water jacket structure is characterized in that the cylinder body water jacket comprises a water passing way arranged on the air inlet side of an engine and a cylinder body water jacket body wrapping the air cylinder and communicating with the water passing way; and the cylinder cover water jacket comprises a burning chamber water jacket wrapping a burning chamber and communicating with the water passing way and an exhaust manifold water jacket wrapping the exhaust manifold and communicating with the burning chamber water jacket. By means of the automobile engine cooling water jacket structure, an air cylinder cover and an air cylinder body are better cooled, the cooling water distribution ratio of thecylinder body water jacket to the cylinder cover water jacket can be adjusted to enable the cooling effect on the air cylinder cover and the air cylinder body to be better, the more even air cylindertemperature can be guaranteed, the cooling strength of the burning chamber and the exhaust way zone can be adjusted, and the temperature of the burning chamber and the temperature of the exhaust way zone can keep coincident; and the cooling capacity of the exhaust manifold can be improved, and the reliability and the economical efficiency of the engine are improved.

The invention discloses a vacuum compression molding device for a carbon fiber composite. The vacuum compression molding device for the carbon fiber composite solves the problem that the performance of a carbon fiber composite molded test piece is poor and comprises an upper mechanism, a lower mechanism, a vacuumizing device, a temperature control device, a pressure control device and a numerical control operation platform. The upper mechanism is installed at the top end of guide posts installed in the lower mechanism through an upper heat conducting plate. Top-pasted type pressure sensors of the pressure control device adhere to the bottom face of the upper heat conducting plate and are connected with the numerical control operation platform through wires. Bottom-pasted type pressure sensors of the pressure control device adhere to a lower heat conducting plate and are connected with the numerical control operation platform through wires. Upper temperature sensors of the temperature control device adhere to the two sides of an upper male die of the upper mechanism and are connected with the numerical control operation platform through wires. Lower temperature sensors of the temperature control device adhere to the two sides of the upper surface of a lower female die and are connected with the numerical control operation platform through wires. The vacuumizing device is installed on a vacuum compression molding device base on the left side of the lower mechanism, and a one-way valve of the vacuumizing device is installed on the lower female die. The numerical control operation platform is installed on the right side of the lower mechanism.

The invention discloses a hot-melting strip pasting machine which is characterized by comprising a working table, an adjustment assembly, a conveying device, a pressing roller device, a shearing device and a hot wind device, wherein the working table comprises a rack, a first movable portal frame, a front-rear walking mechanism, a left-right walking mechanism and a second installation hanging bracket; the first movable portal frame is disposed on the rack by the front-rear walking mechanism and can be moved back and forth; the second installation hanging bracket is disposed on the first movable portal frame by the left-right walking mechanism and can be moved horizontally; the conveying device, the pressing roller device and the hot wind device are disposed on the second installation hanging bracket of the working table in a rotatable manner by the adjustment assembly; the conveying device is used to install corresponding hot-melting adhesive films and recycle corresponding release paper; the pressing roller device is used to press and paste the hot-melting adhesive films on corresponding fabrics; the shear device is disposed on the pressing roller device and used to cut off the hot-melting adhesive films; and the hot wind device is used to heat the holt-melting films.

The invention relates to a network equipment cabinet with a cooling system, in particular to a network server cabinet for keeping temperature by using cold-hot air convection. The cabinet of the technical scheme comprises side walls, a cabinet body and an equipment frame, wherein a cold-hot exchanger is arranged at the lower part of the cabinet body and forms a cold air supplying duct and a hot air draining channel in the cabinet body; the side wall of the cabinet body through which the cold air supplying duct passes is provided with a deflector which adopts an arc plate to drain the cold airto heating equipment, and then adopts an air guide pipe arranged on the hot air draining channel to carry out targeted absorption on local heat of the equipment. The cabinet in the scheme can cool theinner temperature thereof to the set temperature, can realize local temperature reduction, lead the temperature of all the parts in the cabinet to be uniform, reduce energy consumption and noise, issimple and reliable, and achieve the purpose of drainage of local high temperature in the cabinet body, thus realizing the effect of leading the temperature of the whole cabinet to keep balance.

The invention discloses a high-efficiency and energy-saving intensive tobacco flue-curing house, which comprises a heat supply chamber, a baking chamber, a hot air circulating system and an absorption type heat pump system, wherein the hot air circulating system is connected with the heat supply chamber, the baking chamber and the absorption type heat pump system sequentially by a pipeline; and the absorption type heat pump system is arranged on the top of the baking chamber. According to the high-efficiency and energy-saving intensive tobacco flue-curing house, the heat exchange efficiency and energy utilization rate are improved by utilizing a technology of performing heat exchange by a rotary air heat exchanger, a technology of preheating air required by the combustion of a hearth by recovered smoke waste heat, a technology that the recycled smoke waste heat is used as a heat source of the absorption type heat pump system and the like; a baking effect of the tobacco flue-curing house is improved by utilizing technologies of supplying air from two sides of a side wall air distribution board and exhausting the air from the center of a central air draft pipe; and a humidity-discharging effect and an energy-saving effect are improved by utilizing a technology of performing deep dehumidification and recovering humidity-discharging waste heat by the heat pump system. Therefore, the high-efficiency and energy-saving intensive tobacco flue-curing house has the characteristics of high heat exchange efficiency, high energy utilization rate, good baking effect and good humidity-discharging effect, is particularly suitable for low-cost and large-scale production, and can be widely applied to the technical field of tobacco flue-curing.

A temperature control type loop heat pipe evaporator assembly comprises a heat compensator, N evaporation units and a connecting pipeline, wherein the N is a positive integer bigger than or equal to 1; the heat compensator is arranged in the input end so as to heat up the liquid working medium in the loop heat pipe into gas-liquid two-phase state; the N evaporation units are connected by the connecting pipeline so as to form an evaporation network; the input end of the evaporation network is connected with the output end of the heat compensator through the connecting pipeline; the output end of the evaporation network serves as the output end of the evaporator assembly. The evaporator assembly can ensure the working medium entering each evaporation unit in the loop heat pipe operation to be two-phase working medium, thus ensuring constant and consistent temperature of the heat source in working/non working state, and accurately controlling the temperature in the complete cycle.

The present invention relates to fast oil gas and catalyst separation in hydrocarbon material fluid catalytic cracking, and is especially one catalytic cracker without settler. The catalytic cracker without settler features the stripping unit with lower end connected via a vertical pipe to one regenerator, the first cyclone separator connected to the upper end of the stripping unit, the riser tube with outlet connected to the first cyclone separator via pipeline, and the second cyclone separator connected serially to the upper end of the first cyclone separator and with material feeding structure communicated to the stripping unit. The catalytic cracker can realize the efficient fast gas-solid separation in the separating efficiency up to 99.99 % and average oil gas residence time shortened to 2-3 sec, and has less scaling, compact structure and low cost.

The invention provides an engine oil-gas separation test evaluation device and method. The device comprises a gas pretreatment device, an engine simulation device and a gas detection device, wherein the gas pretreatment device comprises an air compressor, a dryer, an air filter, an oil removal filter and a storage tank; the air compressor is connected to the storage tank through the dryer, the airfilter and the oil removal filter in sequence; the engine simulation device comprises a heatable pressure stabilization box, a front-end gas flowmeter and an engine; the gas detection device comprises an oil-gas condenser, a collecting bottle, an oil-gas filter and a rear-end gas flowmeter; and the oil-gas condenser is connected to the rear-end gas flowmeter through the collecting bottle and theoil-gas filter in sequence. According to the engine oil-gas separation test evaluation device and method, the flow, temperature and pressure generated by an oil-gas mixture can be controlled, the testmethod is closer to a real working condition of the engine, and a test result is more accurate and reliable.