42results about How to "Realize precise temperature control" patented technology

The invention discloses an efficient energy saving electro heating multipurpose cooker utilizing a new method of accurate temperature controlling and healthy cooking. The technical scheme of the invention is as follows: the outside surface of the cooker body is provided with an ambient temperature sensor; the base of the cooker is provided with an inner pot temperature sensor; the cooker body, thecooker cover and the cooker base are all set to be closed efficient heat insulation interlayers; the closed heat insulation interlayer on the cooker base is arranged between the casing of the cookerbase and the electro heating device; a hallow cavity is arranged between the casing of the cooker base and the closed heat insulation interlayer; and the purposes of energy saving, discharge reducingand healthy cooking can be realized by setting standard control values such as ambient temperature or temperature drop, cooking/steaming temperature and time and the like by an automatic control device and by comparing the ambient real-time temperature or temperature drop with the inner pot real-time temperature to control the power on and power off of the electro heating device. The efficient energy saving electro heating multipurpose cooker can be used for cooking rice, cooking congee, cooking soups and steaming food; compared with various electro rice/congee/soup cooker in the prior art, the invention can save electricity by 30%-50% and can be widely used in families, dining halls and catering enterprises in cities and towns.

The invention relates to the technical field of industrial automation temperature control, and in particular relates to a novel temperature control device and an application method thereof. The novel temperature control device comprises a programmed temperature-controlled meter, a control circuit and an input panel; at least two thermocouple ports are arranged on an auxiliary input module and are electrically connected with thermocouple elements; and a main output module is provided with at least two control output ports which are electrically connected with solid relays. The application method comprises the following steps that: the initial temperature of each time interval, the thermal treatment time after each time interval and a desired temperature in a thermal treatment process are set; and the temperature gradient of the time interval is calculated by a central processor, wherein the temperature gradient is equal to the desired temperature subtracted by the current temperature and divided by the thermal treatment time. A refrigeration control end is electrically connected with a cooling fan of a thermal treatment furnace; and an operator adjusts the heating state or the refrigeration state of the novel temperature control device through a heating/refrigeration switchover device, so that a temperature control defect of heating after excessive refrigeration is overcome.

The invention provides a constant-temperature water bath control method based on a feedforward feedback fuzzy self-tuning PID control algorithm. The constant-temperature water bath control method comprises the following specific steps: 1) measuring a temperature step curve of a constant-temperature water bath; 2) establishing a thermostatic water bath temperature mathematical model; and 3) performing controlling by adopting a fuzzy PID control algorithm. According to the invention, the fuzzy PID control system is applied to the constant-temperature water bath monitoring system, and has great significance in improving the stability of the system, improving the dynamic performance of the system, enhancing the adjustment level of the system, improving the control efficiency, ensuring the measurement quality and saving energy.

The invention provides a titanium-based alloy material spinning forming method based on composite heating. The titanium-based alloy material spinning forming method comprises the steps that firstly, ablank, a central spindle and a spinning roller are preheated with a flame gun; and secondly, the blank is heated to the spinning temperature with a follow-up induction heating coil, the temperature is monitored with an infrared thermal imager in the spinning process, and heating and heat preserving are conducted on the blank in a spun area behind the spinning roller with the flame gun. Accordingto the titanium-based alloy material spinning forming method based on composite heating, two heating modes including front-end electromagnetic induction heat source heating and back-end flame source heat compensating are combined, the temperature is monitored with the infrared thermal imager, and then online heating and precise temperature controlling in the spinning forming process are achieved.Embodiment results show that when spinning forming is conducted on a titanium-based alloy through the method, an obtained spun part is uniform in wall thickness, has no cracking phenomenon, is high inquality and can not generate defects such as instability wrinkling in the spinning process.

The invention discloses a post evaluation system for polluted soil remediation. The system is provided with six independent reaction kettles, and temperature sensors, conductivity electrodes, pH electrodes and redox potential electrodes are arranged in grooves in the reaction kettles, so that internal precise temperatures in the reaction kettles are accurately controlled; furthermore, test analysis and dynamic monitoring on multiple test samples and multiple parameters can be simultaneously performed, so that parallel test errors are reduced, and the test period is shortened; the conductivity electrodes, high-temperature-resistant and acid-alkaline-corrosion-resistant electrodes are adopted for the pH electrodes and the redox potential electrodes, so that the durability and the detection accuracy of equipment are greatly improved; hollow meshed test sample tables are arranged at the bottom parts of the reaction kettles so that a requirement for a relevant leaching test standard is met. The system integrates testing and dynamic monitoring; the aim of post evaluation is fulfilled by performing accelerated corrosion test and analysis on remediated polluted soil under conditions of high temperature, high pressure, high rotating speed and high concentration.

The invention provides a superconducting device test probe rod. The superconducting device test probe rod comprises a test rod body, a heat conduction sample table and a temperature measurement and control module, the test rod body is provided with a test end. The heat conduction sample table is fixedly connected with the test end. The temperature measurement and control module is fixed on the heat conduction sample table. The temperature measurement and control module is used for measuring and controlling the temperature of the heat conduction sample table. According to the invention, the heat conduction sample table is fixed at the test end of the test rod body; the temperature measurement and control module is fixed on the heat conduction sample table, the good heat conduction performance of the heat conduction sample table is utilized, the temperature measurement and control module measures and controls the temperature of the heat conduction sample table, accurate temperature control over a superconducting device to be tested is achieved, and therefore the test effect of the superconducting device to be tested is guaranteed.

The invention discloses a precise temperature control system. The system comprises a detector assembly. The detector assembly comprises a refrigeration frame used for installing an infrared detector body, and the outer end of the refrigeration frame is connected with a heat sink copper block. The detector assembly is connected with one end of the heat pipe through the heat sink copper block, and the other end of the heat pipe is connected with the radiation cold plate. According to the system, refrigeration is realized by adopting a combined mode of the radiation cold plate and the thermoelectric refrigerator. The thermoelectric refrigerator adopts a direct-current driving mode, so that the photosensitive surface of the detector is ensured to have higher temperature stability, and meanwhile, noise interference caused by a refrigeration driving circuit is avoided. The system can ensure that the photosensitive surface of the detector works at a lower temperature, has higher temperature stability, and meets the application requirements of infrared band high-precision weak signal measurement. In addition, the system is compact in structure, simple in process, easy to implement and highin reliability.

The invention relates to a thermosensitive control variable pitch fan. Change of heat conduction expansion wax on temperature is correspondingly converted into volume change to push a piston to driven a variable pitch disk connected with the piston, a pull rod and a fan blade, then blade pitch of the fan blade can be changed to achieve different air inlet amounts under the same rotation speed, and accordingly the purpose of direct-distance air cooling accurate temperature control of an engine can be well achieved.

The invention relates to an intelligent temperature control system for gene detection. The intelligent temperature control system is used for the technical field of gene detection. The system comprises a detection cover plate, a gene sample box and a temperature control box. The detection cover plate and the gene sample box are sequentially arranged on the temperature control box, one end of an electrolysis probe electrode is inserted into a sample cavity, and the other end of the electrolysis probe electrode is connected with a gene electrochemical testing device. A gene extraction injection pump and a gene data output device connected with the gene sample box through a data output probe are further arranged on the side face of the gene sample box. A cooling device, a temperature controller and a heating device are arranged on the side face of the temperature control box side by side. The cooling device is connected with a cooling tank, and the heating device is connected with heating conducting glass. The temperature controller is inserted into the sample cavity through a temperature detection rod. The system is high in efficiency, low in cost, high in automation degree, low in labor intensity, easy to operate and good in safety, data for gene detection are real and good in effectiveness, detection is convenient, the effects of accurate temperature control and intelligent temperature control are achieved, and large market promotion prospects are achieved.

The invention discloses a precise adjustable liquid expansion temperature controller, and the controller comprises a switch assembly and a liquid closed power system arranged on the switch assembly and used for generating switch driving quantity matched with a switch. According to the precise adjustable liquid expansion temperature controller, through the liquid intangibility and uniform moleculardistribution, the temperature is sensitive to temperature changes, the volume expansion coefficient is high, and an elastic energy conversion diaphragm capsule is combined, so the tiny change of thetemperature can be converted into a corresponding displacement and force; a temperature control probe is directly contacted with an equipment working environment, and no indirect energy transmission component is arranged in the middle; the temperature is converted into a temperature variable (heat energy) by the diaphragm capsule and is directly applied to the switch contact assembly; by means ofthe structure, tiny temperature changes of the control environment can be converted through the diaphragm capsule and transmitted to the switch assembly, so the problem of energy inconsistency causedby energy transmission loss in the liquid expansion temperature control process and part deviation is solved, the one-to-one relation of energy transmission is achieved, precise temperature control over equipment is achieved, and better use prospects are brought.

The invention discloses a Hg standard gas generating device, comprising a Hg source evaporation cavity for storing the Hg source, a temperature control cavity surrounding the Hg source evaporation cavity, and a refrigeration cavity with a refrigeration function, wherein the temperature control cavity is arranged in the inner cavity of the refrigeration cavity, the inner cavities of above three cavities are isolated from each other, the inlet pipe and outlet pipe of the Hg source evaporation cavity are communicated with outer gas pipelines by passing through the temperature control cavity and the refrigeration cavity. According to the invention, the temperature control cavity of the Hg standard gas generating device is arranged in the inner cavity of the refrigeration cavity, thus the temperature of the temperature control cavity can be reduced to below the lowest temperature required by temperature control adjustment, the low temperature control is realized to meet the requirement of temperature control adjustment, the precision of temperature control adjustment in the Hg source evaporation cavity is raised, the requirement of Hg standard gas diluted concentration is satisfied, and simultaneously the application range of the Hg standard gas generating device is enlarged.

The invention discloses a chocolate temperature regulation device applied to a temperature regulation link in production of chocolate products. The chocolate temperature regulation device is used for performing temperature regulation, including three processes of primary cooling, secondary cooling and heating, on chocolate liquor. During the processes of primary cooling and secondary cooling, thermostatic water with temperature controlled precisely is adopted, and during the temperature regulation process, a PID algorithm is combined and a periodic pulse manner is adopted to control water inlet of water inlet ball valves. The chocolate temperature regulation device comprises a temperature controlled water mixer, a heating water inlet ball valve, a secondary cooling water inlet ball valve, a primary cooling water inlet ball valve, a heating temperature sensor, a secondary cooling temperature sensor, a primary cooling temperature sensor, a heating temperature regulation barrel, a secondary cooling temperature regulation barrel, a primary cooling temperature regulation barrel and a chocolate liquor inlet valve, as well as temperature sensor amplification A/D circuits, ball valve driving circuits and singlechip computation and control hardware and software corresponding to the parts.

The invention discloses an optical cabin environment monitoring device for a high-power solid laser and a control method thereof. The monitoring device comprises: a cooling water circulating unit; anoptical crystal temperature control module, including a base fixed in an optical cabin and in which cooling water circulates, a heat-conducting carrier for mounting and fixing the optical crystal, a first temperature sensor arranged in the heat-conducting carrier, and a semiconductor refrigerating unit arranged between the heat-conducting carrier and the base; a cabin air quality monitoring module, including a temperature-humidity sensor arranged in the optical cabin; a controller in communication connection with the first sensor, the semiconductor refrigerating unit and the temperature-humidity sensor. Internal operation parameters of a cabin are measured in real time and precisely controlled in high integrity manner in response to the special environment in the optical cabin; the environmental conditions, such as temperature, humidity and cooling water state, are monitored in real time, and precise temperature control is provided for optical elements.

The invention relates to the technical field of heat dissipation structures, and discloses a temperature control type radiation cold shield device for heat dissipation of a light inlet of a large-aperture optical remote sensor, and the device comprises an inner multi-layer heat insulation assembly, an inner heat cover for isolating heat flow disturbance, and an outer heat cover which is disposed at the outer side of a front lens cone and is used for isolating heat flow disturbance, and the inner multi-layer heat insulation assembly and the inner heat cover are successively disposed at the inner side of the front lens cone. The outer heat cover is wrapped with an outer multi-layer heat insulation assembly to reduce heat leakage of the external environment, the outer heat cover is provided with a heat dissipation device used for dissipating heat, the heat dissipation device comprises a heat pipe and a heat dissipation face, the heat pipe is attached to the outer surface of the outer heat cover, and the heat pipe is communicated with the heat dissipation face and used for uniformizing the temperature of the outer heat cover and dissipating heat. And the outer heat cover, the inner heat cover and the front lens cone are all provided with temperature control loops, so that the heat of the light inlet of the large-aperture optical remote sensor can be efficiently dissipated, the temperature of the light inlet can be kept stable, and the precise temperature control of the front lens cone is realized.

The invention discloses rotary equipment for accurate temperature control of a thermosensitive substance and an application method. The rotary equipment comprises a shell, a motor, a liquid inlet, a liquid inlet cavity, a liquid outlet, a rotor, a gravity assisted heat pipe, a temperature control cavity, a gas inlet and a gas outlet. According to the invention, accurate temperature control of the thermosensitive substance can be realized by adjusting the type of the heat pipe and the medium, the accuracy can reach +/-0.1 DEG C, and the problems of scorching, deterioration, inactivation and the like of the thermosensitive substance caused by non-uniform material heating and uncontrollable temperature due to traditional electric heating or medium heat conduction are avoided. The device and the method have important significance in the fields of plastic engineering, bioengineering and biochemistry.

The invention provides a low-temperature stretching rheometer. The low-temperature stretching rheometer comprises a sample cavity, a double-roller clamp, a cooling cavity, a vacuum cavity, a first motor, a second motor, a torque sensor, a mechanical control system, a temperature measuring instrument, a first motor drive device, a second motor drive device and a motor control system, wherein the double-roller clamp is arranged in the sample cavity; the cooling cavity is arranged outside the sample cavity; the vacuum cavity is arranged outside the cooling cavity; the first motor is connected with a first roller clamp and drives the first roller clamp to rotate; the second motor is connected with the second roller clamp and drives the second roller clamp to rotate; the torque sensor is arranged between the first roller clamp and the first motor; the first motor drive device is connected with the first motor, and the second motor drive device is connected with the second motor; and the motor control system controls the first motor drive device and the second motor drive device by virtue of a motion controller. The invention also provides a method for testing the low-temperature performance of a high molecular film. The low-temperature stretching rheometer provided by the invention can be combined with the scattering of X rays to on-site research a relation between a structure evolution behavior and low-temperature application performance in the stretching process of the high molecular film.