26 results about "Warming process" patented technology

The invention belongs to the technical field of infusion heating, and discloses an infusion heating method, device and equipment based on PID (Proportion Integration Differentiation) adjustment and a storage medium, and the method comprises the following steps: constructing a temperature conversion model of the temperature of a sensor at a liquid outlet end and the temperature of transmitted liquid; heating the liquid at the liquid outlet end to a pre-heating temperature according to the target heating rate and a temperature conversion model; acquiring a first mapping relation table, and heating the liquid at the liquid outlet end to a target temperature according to the first mapping relation table and a PID algorithm; and a second mapping relation table is obtained, the input condition of the liquid inlet end position and the temperature of the middle position are monitored, and PID adjustment is conducted on the liquid temperature of the liquid outlet end or abnormity reminding is conducted on a user through the second mapping relation table and the temperature conversion model. The heating to the specified temperature is ensured, the working condition change in the heating process can be fed back and processed according to related parameters, the accuracy and stability of the heating process are ensured, the body temperature maintenance of a patient is facilitated, and the sudden change situation occurring in the midway of the steady state can be timely processed.

The invention discloses a kiln heat exchanger which comprises a shell, a first sealing plate and a second sealing plate are fixedly arranged at the two ends of the inner side of the shell correspondingly, and the interior of the shell is sequentially divided into a hot air flow collecting cavity, a heat exchange cavity and a cold air flow collecting cavity by the first sealing plate and the second sealing plate from left to right. Cold air filtered by the filter is guided into the cold air flow collecting cavity through the cold air guide-in opening, then the cold air is divided into the heat exchange pipes, and meanwhile kiln waste gas is guided into the heat exchange cavity through the waste gas guide-in opening, so that the kiln waste gas and the cold air in the heat exchange pipes are subjected to heat exchange treatment; the combustion-supporting air can be heated, then the cold air is heated, the temperature rising process of the combustion-supporting air during combustion can be reduced by heating the combustion-supporting air, then the combustion efficiency can be improved, the effect of saving fuel gas is achieved, waste heat recovery of waste gas can be achieved, and resource waste is avoided.

This invention discloses an apparatus and method for continuous heating of sucralose chlorination, comprising a continuous heating tower and a condenser. The continuous heating tower has a bottom vessel and an upper condenser tube assembly. A heater is built into the upper part of the bottom vessel, and a cavity section is formed between the heater and the condenser tube assembly. The condenser tube assembly has a shell-side inlet at the upper end and a shell-side outlet at the lower end. The cavity section has a feed inlet and a liquid phase inlet. The gas outlet at the top of the continuous heating tower is connected to the condenser inlet, the liquid phase outlet of the condenser is connected to the liquid phase inlet of the cavity section, and the shell-side outlet is connected to the feed inlet. A steam jacket is provided outside the bottom vessel, and the steam-water outlet of the heater is connected to the steam-water inlet of the steam jacket. The apparatus and method of this invention not only fully utilize the heat and refrigeration capacity of the material itself, saving a significant amount of steam and refrigeration input, but also achieve continuous operation of the high-temperature chlorination section in sucralose production, eliminating the need for intermittent waiting during the heating process.

The present invention provides a device and method for controlling the void ratio of a large-area thermal interface connection of a power electronic device. In the device part, by optimizing the design of the grid structure shape of the stencil printing module, it is ensured that the organic solvents and water vapor in the solder paste layer can be discharged smoothly, thereby effectively reducing the void ratio during the welding process; in the method part, through the optimization of the reflow soldering process, including the temperature control and vacuum degree optimization in each stage such as the heating process, heat preservation process, pre-reflow and reflow processes, the gas escape time is appropriately extended, so that the void ratio is controlled below 1%, the interface thermal resistance is reduced, and the heat dissipation performance is improved. The present invention simplifies the production process through optimized design and process, is more convenient to operate and has low cost, and is suitable for large-scale production; at the same time, since the void ratio is effectively controlled, the product quality consistency in the production process is guaranteed, and the heat dissipation efficiency and service life of the power electronic device are improved.

This invention belongs to the field of electric heater temperature control technology, specifically disclosing a high-efficiency and energy-saving intelligent temperature control method for electric heaters. By constructing a multi-point temperature measurement array inside the liquid heating container, real-time temperature time-series data from each measurement location during the heating process is collected to generate corresponding temperature rise curves. Furthermore, feature points representing thermal dynamic changes are extracted from the curves, effectively capturing the temporal differences and spatial evolution characteristics of different regions within the liquid during the heating process. This allows for a complete reconstruction of thermal dynamic behavior in both spatiotemporal dimensions, providing a high-fidelity and comprehensive decision-making basis for temperature control strategy formulation. Simultaneously, after extracting the curve feature points, the heating process is divided into continuous physical stages, and targeted heating control is performed for each stage. This achieves a shift from deviation feedback control to process state control, making the control actions targeted and forward-looking, which helps reduce energy loss during the transition process.

The application discloses a tunnel deformation equivalent prediction method caused by anchoring body deterioration in a hydrothermal corrosion environment, and relates to the technical field of tunnel engineering safety monitoring. In the process of predicting the tunnel deformation equivalent, temperature change data and humidity change data in the service environment of the anchoring body are collected, the temperature change data and the humidity change data are time-aligned, the time corresponding relationship between the temperature change and the humidity change is established, the continuous temperature rising process and the continuous temperature falling process are divided into alternating sections, and the temperature change data corresponding to the end time of the continuous temperature rising process or the continuous temperature falling process and the time position thereof are extracted at the end of each section of the alternating sections, and the extracted end points are summarized to form a temperature change inflection point set. By identifying and stripping the false deformation fluctuation caused by the closed bubble under the hydrothermal corrosion condition, combining the periodic change sequence and the fluctuation suppression time arrangement, the dynamic correction of the tunnel deformation equivalent is realized, the prediction result is more suitable for the real deterioration evolution process of the anchoring body, and the stability and engineering applicability of the long-term service deformation evaluation of the tunnel are improved.

The present invention belongs to the technical field of burners, and specifically relates to a control method for ultra-low NOx emissions during the ignition and start-up process of a circulating fluidized bed boiler, which is as follows: First, supply primary air, maintain the negative pressure at the furnace outlet, ignite the oil gun, raise the temperature of the boiler bed, feed coal into the furnace, control the heating rate. When the combustion color in the furnace is normal red and the bed temperature is 760°C - 780°C, adjust the ignition oil pressure and the coal feeding amount. When the bed temperature is stably burning and NOx ≤ 45mg / Nm 3 , the ignition is successful; during the heating process, the first denitration spray gun is put into use; after the ignition is successful, the oil gun is withdrawn, secondary air is supplied. When the furnace outlet temperature reaches above 670°C, the second denitration spray gun is put into use, the NOx content in the flue gas decreases, the first spray gun is withdrawn, and the NOx emission amount in the flue gas ≤ 46mg / Nm 3 . By adopting this method, the ultra-low NOx emissions of the flue gas can be effectively controlled during the ignition process of the furnace, and the problem of environmental pollution is effectively reduced.

This application relates to the field of refrigeration technology, specifically to a de-icing method and ice-making equipment. In this de-icing method, a multi-stage de-icing process replaces the traditional continuous and rapid de-icing heating process. In the first and second de-icing modes, the temperature of the cooling column is controlled so that only a portion of the ice block slides down. During this process, a drainage actuator discharges only a portion of the water, keeping the ice block constantly submerged in water. Only after the remaining water is drained does the final de-icing process begin in the third stage. This application embodiment effectively alleviates the tensile stress caused by drastic temperature differences within a short period by using staged de-icing. Simultaneously, the buoyancy of the remaining water supports the ice block, preventing it from sliding down significantly or tilting and deforming after detaching from the cooling column. This avoids cracks on the ice block surface due to concentrated thermal stress, ensuring the integrity and appearance quality of the produced ice block.

The utility model provides a metal separation device, which comprises a heating furnace, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe which are sequentially connected through a pipeline, a cooling water pipe is arranged in the condenser; the condenser is further provided with an argon inlet, and the condenser is filled with argon. And the vacuum pump extracts the gaseous metal from the heating furnace and enters the condenser. As the boiling points of aluminum, magnesium and zinc are different, in the heating process of the heating furnace, waste aluminum is firstly heated to be in a liquid state and then sequentially reaches the boiling points of zinc and magnesium, so that zinc and magnesium are sequentially gasified and overflowed and enter a condenser to be condensed and collected, and separation of zinc, magnesium and aluminum is completed. When zinc and magnesium are in a gaseous state, bubbles can be formed in the liquid waste aluminum, rise and finally are separated from the liquid waste aluminum; and in the process, the liquid waste aluminum cannot block overflowing of gaseous zinc and magnesium, so that the metal separation efficiency of the waste aluminum is improved.

The invention relates to a negative pressure purification method and a negative pressure purification system. In at least one of the heating process, the air exhaust process and the pressure relief process, the temperature in the extraction box is controlled to be changed to the extraction temperature required by the extraction process according to a temperature rise curve represented by a temperature model, the temperature model is represented as follows: a is the temperature rise slope, t0 is the duration required by heating to half of the extraction temperature, and t0 is the duration required by heating to half of the extraction temperature; t is any moment, f (t) represents the temperature rise increment proportion at the moment t, the temperature rise increment proportion represents the proportion of the current heated amount in the total temperature rise amount, the current heated amount is equal to the difference between the current temperature and the initial temperature, and the total temperature rise amount is equal to the difference between the extraction temperature and the initial temperature. Therefore, the smooth and continuous change of the temperature can realize a better process window, compared with a solvent extraction method, more extraction time is saved, and the purification effect equivalent to that of the solvent extraction method is achieved. And meanwhile, overshoot during PID adjustment can be reduced, and a rapid and stable temperature set value is achieved.

The application discloses an infrared in-situ transmission sample assembly and an infrared transmission detection system. The infrared in-situ transmission sample assembly comprises a temperature-controllable heating tube, a metal tube sleeve and a sample support. The temperature-controllable heating tube comprises a tube main body. The metal tube sleeve comprises a main tube sleeve which is inserted into the tube main body and is electrically connected with a temperature controller. The sample support comprises a support main body which is inserted into the main tube sleeve and has a tubular structure with open ends. A groove is formed in one end of the support main body along the side surface, and the groove is used for inserting a sample to be measured so that the sample to be measured is in the pipeline of the support main body. The sample assembly can directly place the sample without loading or clamping other window materials, can avoid the breakage of the sample, is beneficial to the evaporation of a small amount of water vapor in the heating process, and thus can avoid the interference of water vapor in the measurement process. The application provides a more accurate and reliable sample accessory for the measurement and analysis of the infrared transmission spectrum.

The utility model provides a glass strain point and annealing point measuring device which comprises a furnace body provided with a heating cavity; the temperature equalizing pipe is located in the heating cavity and connected with the furnace body, and the length direction of the temperature equalizing pipe is consistent with the vertical direction; the first heating piece is connected with the outer wall of the uniform-temperature pipe and used for heating the uniform-temperature pipe so that a uniform-temperature area can be formed in the uniform-temperature pipe; the temperature sensor is connected with the inner wall of the temperature equalizing pipe and is used for measuring the temperature of the temperature equalizing pipe; the two second heating pieces are located in the heating cavity and connected with the furnace body, and the two second heating pieces are located at the two ends of the uniform temperature pipe correspondingly; the two second heating pieces are heated to form two temperature regulation and control areas adjacent to the uniform temperature area; the temperature of the uniform temperature area can be kept higher than a first preset value of the temperature of each temperature regulation and control area in the heating process, so that the two ends of the to-be-tested glass finished product have stable structures all the time. According to the measuring device, the technical barrier that in the prior art, a glass finished product cannot be directly measured is broken through, and direct measurement of the finished product glass is achieved.

The invention relates to a nitrate isothermal quenching mesh belt furnace process for salt gas recycling, oil smoke purification and waste heat utilization, and belongs to the technical field of quenching, the nitrate isothermal quenching mesh belt furnace process comprises a temperature rising step, a nitrate isothermal quenching step and a salt gas recycling step: collecting salt gas generated in the heating and isothermal quenching process of a nitrate pool, treating the salt gas through a condensation recovery device, and recycling the salt gas through a waste heat recovery device; returning the treated and recycled nitrate to the nitrate tank for cyclic utilization; oil fume purification: collecting oil fume generated in the heating process of the mesh belt furnace, and carrying out purification treatment on the oil fume through an oil fume purification device; and cleaning and drying are conducted, specifically, the lifting mesh belt lifts the workpiece treated in the nitrate isothermal quenching step from the nitrate pool and conveys the workpiece into a cleaning and drying chamber. The method has the advantages that the problem of salt gas emission pollution in an existing nitrate isothermal quenching mesh belt furnace process is solved, and salt gas recycling is achieved; the safety and the environmental protection property of the production process are improved; and the energy consumption is reduced.

This application provides a dehumidification control method and a cleaning device. The method includes: when the cleaning device is in dehumidification mode, controlling the operating state of the heating system and the compressor based on a first temperature value of the refrigerant re-entered into the compressor and a second temperature value of the air in the inner tank. This method dynamically adjusts the dehumidification and heating processes according to the thermal and humidity conditions of the inner tank, thereby improving the heat pump's operational compatibility, shortening drying time, and reducing energy consumption.

The application provides a temperature control system and a temperature control method. The system comprises a refrigeration device and a circulating device. The refrigeration device comprises a compressor, a heat accumulator, a condenser, an evaporator and a supercooling liquid accumulator. The circulating device comprises a circulating liquid driving device and a heat exchanger. In the temperature rising process, the heat accumulator can be used to raise the temperature, so as to improve the temperature rising speed. The supercooling liquid accumulator can be used to store the supercooling treatment of the refrigerant, and can be used to lower the temperature in the temperature lowering process, so as to improve the temperature lowering speed. In the temperature rising and lowering process, the factory water of the heat exchanger can be used to pre-raise and lower the temperature of the circulating liquid, so as to further improve the temperature rising and lowering speed. In this way, the temperature rising and lowering waiting time can be reduced, the production efficiency can be improved, the energy can be saved, the cost can be reduced, and the equipment miniaturization is facilitated without increasing the power of the compressor, the condenser and the evaporator.

The utility model provides a quantitative concentration device for easily agglomerated materials, which comprises an efficient evaporation concentration mechanism and a vacuum condensation mechanism, the efficient evaporation concentration mechanism comprises a concentrated material bottle arranged in a water bath kettle, and a stirring blade of a high-speed dispersion machine is vertically arranged in the concentrated material bottle through a central opening of the concentrated material bottle; the vacuum condensation mechanism comprises a condensation pipe, a low-temperature constant-temperature water tank, a safety buffer and a water circulation vacuum pump; the safety buffer is connected with the liquid receiving pipe through an exhaust pipe. According to the water circulation vacuum pump, the possibility of agglomeration or layering of materials when water evaporation is reduced in the heating process is reduced, the problem of how to judge the evaporation and concentration time is solved, and the service life of the water circulation vacuum pump is prolonged.

To provide a control device for an internal combustion engine capable of suppressing a blockage of a PM collection action due to adhesion of condensation water to a filter.SOLUTION: A control device for an internal combustion engine is applied to the internal combustion engine mounted to a vehicle in which a filter for collecting PMs is disposed in an exhaust passage. The control device for the internal combustion engine executes temperature rise processing for raising an upstream side exhaust temperature that is a temperature of exhaust gas upstream of the filter in the exhaust passage until condensation water of the filter reaches a vaporized state after start of the internal combustion engine.SELECTED DRAWING: Figure 4

This invention discloses a method for starting up a roasting furnace for processing chalcocite. The method uses the furnace bottom ash as the furnace bottom material, which is pre-screened. The airflow during the bottom material laying process is strictly controlled to maintain the material in the hearth in a slightly boiling state. During the furnace regeneration stage, oxygen-enriched air is introduced while the total furnace airflow is controlled to remain in a slightly boiling state. Intermittent turning operations are performed using a medium boiling state. During the boiling layer heating stage, the total airflow is increased to maintain the material in a medium boiling state, and intermittent turning operations are performed using a fully boiling state. This invention initially uses sulfation roasting as the main method for starting up the furnace, then gradually transitions to oxidation roasting. The initial feeding temperature is about 70°C lower than the normal roasting reaction temperature, shortening the heating time and reducing fuel consumption during the heating process. The starting method provided by this invention not only achieves stable start-up but also saves energy.

The invention relates to a temperature control method of test equipment and the test equipment. The temperature control method of the test equipment comprises the following steps: acquiring a current actual temperature Tc and a final target temperature Tt of a test cavity, wherein the current actual temperature Tc is smaller than the final target temperature Tt; based on the current actual temperature Tc and the final target temperature Tt, judging whether the test equipment meets a stage temperature rise condition or not; if the stage temperature rise condition is met, controlling the temperature of the test cavity to rise to the stage target temperature by taking Tc + delta Tp as the stage target temperature, and re-judging whether the stage temperature rise condition is met or not after preserving heat for a preset duration t at the stage target temperature; if not, controlling the temperature of the test cavity to rise to a final target temperature Tt; the stage temperature rising condition includes that delta T is not smaller than delta Tp, delta T is the absolute value of the difference value between the final target temperature Tt and the current actual temperature Tc, and delta Tp is the preset step temperature difference. According to the temperature control method provided by the invention, the problem of condensation in the temperature rise process of the test cavity can be solved.

The application provides a temperature control system and a temperature control method. The system comprises a refrigeration device and a circulating device. The refrigeration device comprises a compressor, a heat accumulator, a condenser, an evaporator and a supercooling liquid accumulator. The heat accumulator stores heat energy. In the temperature rising process, the heat accumulator can be used for temperature rising, so that the temperature rising speed is improved. The supercooling liquid accumulator is used for supercooling treatment and storage of refrigerant. In the temperature falling process, the supercooling liquid accumulator can be used for temperature falling, so that the temperature falling speed is improved. In this way, the temperature rising and falling waiting time can be reduced without increasing the power of the compressor, the condenser and the evaporator, the production efficiency is improved, energy consumption is reduced, the production cost of equipment is reduced, and the miniaturization of equipment is facilitated.

The invention discloses a squeeze bridge plug indoor experiment device, evaluation system and experiment method.The squeeze bridge plug indoor experiment device comprises a pressurization assembly, a heating assembly and a sleeve tool, the downhole high-temperature and high-pressure and polluting liquid environment can be simulated, the squeeze bridge plug performance can be accurately evaluated, and a downhole tool experiment evaluation system simulates actual working conditions through a setting tool, an experiment sleeve and the like; the performance of the bridge plug can be comprehensively evaluated, the experimental method comprises a plurality of steps such as a setting hanging checking test and releasing operation, the heating rate and pressure are strictly controlled in the heating process, and experimental safety is ensured; by means of the method, sealing failure parts can be accurately checked, powerful support is provided for bridge plug structure optimization, the reliability and safety of the bridge plug in oil and gas well exploitation are improved, and the method has great significance in promoting oil and gas well exploitation technology development.

The application provides a soot blower control method and device, a soot blower, electronic equipment and a storage medium, and belongs to the technical field of soot blowing. The method comprises the following steps: acquiring a first temperature and a first pressure of water vapor in a soot blower pipeline; determining a first thermodynamic state of the water vapor in the soot blower pipeline based on the first temperature and the first pressure; and controlling opening and closing of a drain valve of the soot blower pipeline and starting and stopping of the soot blower based on the first thermodynamic state. According to the soot blowing control method, the temperature and the pressure of the water vapor in the soot blower pipeline during the pipe warming process are monitored, the state of the water vapor in the soot blower pipeline can be determined in time, the pipe warming is determined to be completed or not according to the state of the water vapor, the pipe warming can be stopped in time, unnecessary waste of water vapor during the pipe warming is reduced, and steam heat energy is saved while the pipe warming effect is ensured.

The invention relates to the technical field of dryers, and discloses a hybrid energy-saving dryer, which adopts a circulating cooling system in which normal-temperature circulating water and frozen ice water are matched to assist, and depends on water to provide a cold source, so that the energy consumption is greatly reduced, and meanwhile, the problems of high-temperature tripping and ice blockage of a traditional freezing dryer are completely solved. The starting working time of the compressor is only one half of the whole day, the annual energy consumption of the whole machine is only about 10% of that of a traditional freezing type drying machine, internal heat exchange pipes are all made of stainless steel materials, corrosion resistance is achieved, the service life is long, the fault rate is low, and the whole device is detachable, convenient to clean and maintain and low in cost. A precooling temperature-returning device which is uniquely designed is adopted, so that saturated hot compressed air entering the drying machine is cooled for three times and heated for one time, dry compressed air with very low absolute water content and relative humidity is obtained at an exhaust port of the drying machine, and the water temperature and the air temperature can be automatically adjusted according to environmental changes; and the dew point temperature is maintained in a normal range.

The invention belongs to the technical field of electric heater temperature control, and particularly discloses a high-efficiency energy-saving electric heater temperature intelligent control method, which comprises the following steps of: constructing a multi-point temperature measurement array in a liquid heating container, and acquiring temperature time sequence data of each temperature measurement position in a heating process in real time to generate a corresponding temperature rise curve; and curve feature points representing thermal dynamic changes are further extracted, so that time difference and spatial evolution characteristics of different areas in the liquid in a temperature rising process are effectively captured, thermal dynamic behaviors are completely restored in a space-time dimension, a high-fidelity and full-coverage decision basis is provided for making a temperature control strategy, and the method is suitable for popularization and application. Meanwhile, after curve feature points are extracted, the heating process is divided into continuous physical stages, directional heating control is carried out for each stage, conversion from deviation feedback control to process state control is achieved, control actions have pertinence and perspectiveness, and reduction of energy loss in the transition process is facilitated.

The invention discloses a composite heating system of a beer saccharifying pot, comprising: a heat energy water heating unit comprising a heat exchange coil pipe arranged in the saccharifying pot, a heat energy water supply pipeline and a water return pipeline communicated with the heat exchange coil pipe, and a heat energy water pump configured on the heat energy water supply pipeline, the heat pump is used for pumping heat energy water provided by the outside to the heat exchange coil pipe in a circulating manner to perform indirect heat exchange with mash in the saccharifying pot; the steam heating unit is used for heating mash in the saccharifying pot by using steam generated by a boiler; and the control unit is used for controlling the running state of the heat energy water pump and the opening degree of a pipeline of the steam heating unit, so that the mash in the saccharifying pot is cooperatively heated by the heat energy water and steam. According to the invention, the coking phenomenon on the surface of the pot body is avoided, the pure flavor of beer is ensured, a more stable and efficient heating process is realized, the consumption of steam is reduced, and the production cost and carbon emission are reduced.

The invention discloses a glass ceramic degumming temperature control process method and belongs to the technical field of glass ceramic processing. The method comprises the following steps: bonding microcrystalline glass on a workpiece structural plate and cutting; glass remaining on the workpiece plate is taken down in a water boiling degumming mode; the water temperature is slowly increased from 10 DEG C to 55 DEG C through steam or electric heating, the temperature increasing process is controlled within 30-35 minutes, and the water temperature is made to be uniform through stirring or gas bubbling; after the temperature reaches 55 DEG C, the constant temperature is kept for 10-15 minutes, so that the adhesive is fully softened to realize degumming; and then slowly adding cold water, reducing the water temperature to normal temperature within 30-35 minutes, synchronously opening an overflow port to maintain the water level constant in the cooling process, and continuously stirring or bubbling to ensure uniform cooling. By accurately controlling the heating and cooling rate and the temperature uniformity, the glass ceramics are effectively prevented from being broken due to sudden change of thermal stress, and the degumming yield is remarkably improved.