35results about How to "Low temperature control" patented technology

This invention provides a treatment method for waste liquid from adipic acid production with simple process, good effect and low cost. Said method comprises: (1) adding waste liquid from adipic acid production and the extraction agent of ethyl acetate with the same volume as the waste liquid in an extraction equipment, vibrating and extracting, and standing to stratify the water and organic item, and flowing out the water and the remained extract containing three acids (adipic acid, glutaric acid and succinic acid), (2) repeating above steps to extract, (3) distilling the three acids-bearing extract no longer to be treated, evaporating the extraction agent of ethyl acetate, recycling, cooling the remainder and molding to obtain the three acids, and (3) adding alkaline substance to the water no longer to be treated, adjusting its pH within a range of 7-8, and discharging or taking it as liquid fertilizer. The approach is an advanced and mature technology with low energy consumption and no pollution. The three acid obtained have good quality and high efficiency.

The invention provides a microchannel phase-change heat transfer device. The microchannel phase-change heat transfer device includes an outer heat dissipation body and a microchannel heat sink; the outer heat dissipation body is of a cylindrical structure of which one side is closed; the microchannel heat sink is made of a shape memory alloy material and is of a platy structure; the microchannel heat sink is embedded at one un-closed end of the cylindrical structure of the outer heat dissipation device, such that a closed cavity can be formed; and the closed cavity is filled with a liquid working medium; a surface of the microchannel heat sink, which faces the inner side of the closed cavity, is provided with a plurality of hundred-micron-level microchannels; trained micro ribs are located between every two adjacent microchannels; and the depth of the microchannels above a preset temperature is greater than the depth of the microchannels below the preset temperature. With the microchannel phase-change heat transfer device of the invention adopted, the heat removal ability of a microchannel structured surface can be improved, and the overheating degree of the microchannel structured surface can be reduced, and therefore, the temperature of a heat-emitting device can be controlled to be lower.

The invention relates to the technical field of traditional Chinese medicines, in particular to application of a traditional Chinese medicine composition in preparing drugs for improving reproductive performance of sows .The traditional Chinese medicine composition is prepared from licorice roots, herba houttuyniae, radix sophorae flavescentis, radix isatidis, folium isatidis and milkvetch roots and prepared into granules .A traditional Chinese medicine extract containing multiple ingredients is prepared according to suitable proportions, the obvious synergistic effect is achieved, the application range is widened, the effect of improving the farrowing performance and immunity of the sows is achieved, and the health condition of the sows is obviously improved .Meanwhile, the milk yield of the sows is increased, the quality is improved, and meanwhile growth and development and the health condition of suckling piglets are improved .Therefore, the traditional Chinese medicine composition is specially suitable for disease prevention and health care and a guarantee of the reproductive performance of the sows in a large-scale pig farm.

To provide a battery pack temperature control/power feed system in which a battery cell can be heated or cooled in a planar configuration, said system having highly exceptional heating efficiency andcooling efficiency, stable battery performance, a small number of components, and an uncomplicated structure, while making it possible to reduce the size and thickness as well as cost. A battery packtemperature control/power feed system 10 provided with: a battery part 22, which is formed by laminating a plurality of battery cells 12 and a plate-shaped vapor chamber 16 interposed between the battery cells 12; a thermoelectric element 24 positioned so as to adhere tightly to the end surface of one end of the vapor chamber 16 (lateral vapor chamber 18); and a heat sink part 26 equipped with a plurality of fins 30 that are formed extending at a predetermined spacing from each other, the end surface of the heat sink part 26 adhering tightly to the thermoelectric element 24; and a fan part 32positioned facing the fins 30 of the heat sink part 26.

The invention discloses a controller for a self-powered front-and-back-end temperature sensing gas water heater which comprises a main controller arranged in a gas water heater and two monitors which are respectively arranged on a hot water pipe and a cold water pipe, wherein the main controller and the monitors respectively comprise a wireless communication module, a hydraulic electrogenerating device and a charging battery. According to the invention, water current energy is converted into electric energy by the hydraulic electrogenerating device and is stored in the charging battery, so as to achieve the technical effects of self power supply and energy storage; a microcontroller is used for analyzing water current flow rate information, a temperature sensor is used for acquiring the temperature information of a cold water terminal, a hot water initial end and a hot water terminal, wireless transmission of the wireless communication module realizes the technical effects of wireless control and information transmission, and the monitored information is transmitted to a server side to be stored as big data for research; and the overall design is practical and convenient and meets the future development trend of smart home.

The invention relates to an intelligent lubricating system for a coal mine belt conveyor and an intelligent grease injection method. A PLC control box is separately connected with a grease supplementing pump and a grease injection pump. The PLC control box is connected with a monitoring system upper computer, and the monitoring system upper computer is networked with an underground monitoring system. A temperature sensor, a vibration sensor and a blockage sensor form a group of sensor parts, and the temperature sensors and the vibration sensors are mounted at the machine head or the machine tail of the belt conveyor. An intelligent boxes are in one-to-one correspondence with oil path controllers, and each intelligent box is provided with a group of sensor parts. The intelligent grease injection mode of the intelligent boxes comprises a strong grease injection area, a weak grease injection area and a stop area. According to the intelligent lubricating system for the coal mine belt conveyor and the intelligent grease injection method, the intelligent lubricating design is adopted, the fault rate of a belt conveyor bearing is greatly reduced, the temperature of the bearing is controlled within a certain range, vibration and noise are obviously reduced, and the expected effect is achieved; and due to intelligent lubrication, the breakdown time of equipment is greatly shortened, the consumption of spare part materials is greatly reduced, meanwhile, the labor intensity of workers is reduced, and remarkable economic benefits and social benefits are obtained.

The invention provides an airbag-type grinding-polishing device based on control corrosion, which mainly solves the problems of the existing optical element and especially of the non-spherical optical element that machining cost is high and the machining efficiency is low. The airbag-type grinding-polishing device based on the corrosion control comprises an airbag-type polishing head which is connected with an air pump, the airbag-type polishing head comprises an airbag which is arranged on a polishing head main body, and the airbag-type polishing head also comprises a load bearing mechanism and a corrosive liquid storage groove, wherein one side of the load bearing mechanism is used for bearing a machined element. Due to the adoption of the airbag-type grinding-polishing device, the integral grinding and polishing rather than the ring-band trimming polishing of the non-spherical surface can be realized, and the machining difficulty of the non-spherical surface can be reduced to the machining level of a spherical surface; in addition, the chemical corrosion mechanism is introduced into the optical machining, and the acceleration of the corrosion speed is realized through the heating, so that the material removal level of the optical element can be remarkably improved, the milling grinding work of the large non-spherical degree can be completed, and the grinding and the polishing of the non-spherical surface can be realized on the same machine tool.

A process for preparing chitosan used in food, textile and medicine fields features use of shrimps shell and crab leg as raw materials, and includes such steps as selecting raw material, alkali and acid treating three times, and deacetylating while water washing twice for thoroughly removing protein, fat, colour and calcium to obtain macro-molecular high-viscosity chitosan. Its advantage is high yield up to 94.6%.

The invention relates to a honey candy. The honey candy comprises the following raw materials in parts by mass: 80-90% of honey, 1-5% of gelatin, 5-15% of resistant dextrin, 0.1-0.8% of an emulsifier,0.1-0.5% of white oil and the balance of water. The invention also relates to a preparation method of the honey candy. In the invention, the adding amount of the honey reaches 80-95%, the process issimple, and the content of honey in the prepared solidified honey candy is high. Meanwhile, the temperature is controlled to be low in the manufacturing process, and the original nutrient elements ofthe honey can be preserved.

A preparation process of an odorless phosphate flame retardant belongs to the technical field of preparation of phosphate flame retardants, and comprises the following specific steps: sequentially performing the steps of crude product synthesis, alkali washing, water washing, activated carbon adsorption, ultrasonic oscillation, ultra-high-speed centrifugal molecular distillation and filter pressing to obtain the phosphate flame retardant. The method comprises the following steps: firstly, adsorbing aldehyde odor substances in a product by adopting activated carbon; secondly, an ultra-high-speed centrifugal molecular distillation device with a built-in ultrasonic oscillator is adopted to replace traditional dehydration equipment such as a kettle type or a film evaporator. The phosphate flame retardant prepared by the invention is colorless, transparent and odorless, the low acid value is less than or equal to 0.04 mgKOH/g, the low water content is less than or equal to 0.05%, and the low aldehyde content is less than or equal to 2ppm.

The invention provides a controllable temperature and humidity environment box and a control circuit. The controllable temperature and humidity environment box comprises a main environment box body, a fixed supporting box body, a motor, a high-temperature control unit, a low-temperature control unit, a humidity control unit, a control instrument panel, a temperature and humidity instrument and a fan; one side of the main environment box body is connected with one side of the fixed supporting box body, the motor is installed on the inner wall of the side, close to the main environment box body, of the fixed supporting box body, and the fixed supporting box body is connected with the motor and adjusts the height through the motor; the high-temperature control unit is installed on the inner wall of the side, close to the fixed supporting box body, of the main environment box body, the low-temperature control unit is installed on the side, perpendicular to the fixed supporting box body, of the main environment box body, and the humidity control unit is installed in the fixed supporting box body. High temperature, low temperature and humidity of the main environment box body can be controlled in a high-precision and high-stability manner, the control panel can set program control related parameters, and temperature and humidity are increased and reduced at a certain speed as a cycle test working condition.

The invention discloses a control method of a medical sterilization packaging bag sealing machine. A closed-loop control subtask is executed according to parameters set in the last working process after power-on self-test, the remaining running time of a motor is refreshed when a photoelectric sensor detects that a sterilization packaging bag passes, meanwhile, a piece counting control task is hanged up , after the closed-loop control single cycle control is completed, skipping is carried out to execute a piece counting task once, then skipping is carried out to execute a closed-loop control subtask unconditionally, when the rising edge of a touch sensing circuit arrives, a heating plate and the motor are turned off, direct skipping is carried out to a human-computer interaction task, after the setting is completed through a human-computer interaction interface, skipping is carried out to the closed-loop control subtask, when the operation is not performed for more than 1200 seconds and no sterilized packaging bag passes through the sealing machine, skipping is carried out to a low-power-consumption sleep mode, and in the mode, once the sterilized packaging bag is detected to try to be in contact through the sealing machine or any touch key, awakening logic is executed, and skipping is carried out to execute a closed-loop control subtask.

The invention discloses a capacitor multi-channel water-cooling rapid heat dissipation device which comprises a multi-channel water-cooling plate, a capacitor is arranged on the top face of the multi-channel water-cooling plate, the periphery of the capacitor is fixed to the top face of the multi-channel water-cooling plate through bolts, and a heat pipe heat dissipation frame is arranged on the periphery of the capacitor in a surrounding mode. A plurality of heat dissipation pipes are evenly arranged on the periphery of the heat pipe heat dissipation frame, the heat dissipation pipes are parallel to the axial direction of the capacitor, and a water cooling mechanism is arranged in the multi-channel water cooling plate. Through a heat dissipation mode of combining metal heat conduction and water-cooling heat dissipation, the multi-channel water-cooling plate and the heat pipe heat dissipation frame both adopt independent mounting modules, so that the cost is lower, the production is more efficient and more convenient, the reliability is higher, and the maintenance is more convenient.

The invention relates to the technical field of application of traditional Chinese medicine and western medicine combination, in particular to a traditional Chinese medicine and western medicine composition, a preparation method and application thereof. The traditional Chinese medicine and western medicine composition is composed of a traditional Chinese medicine portion A and a western medicine portion B. The traditional Chinese medicine portion A is composed of, by weight parts, 30-50 parts of herba epimedii, 30-50 parts of radix astragali, 10-20 parts of radix sophorae flavescentis, 10-20 parts of licorice root, 20-30 parts of radix isatidis, 10-15 parts of indigowoad leaves, and 5-20 parts of heartleaf houttuynia herb. The western medicine portion B is composed of, by weight parts, 10-40 parts of tilmicosin, 30-70 parts of monostearin, 0-50 parts of hardened oil, 0-10 parts of HPMCP and 0-10 parts of PVAP. The effect of combination of the traditional Chinese medicines and western medicines (A+B) is obviously superior to the use of traditional Chinese medicine portion A or western medicine portion B alone, especially in the health care of large-scale pig farms, and the promotionand application and industrialization prospects of large-scale pig farms are very broad.