861results about How to "To achieve the purpose of cooling" patented technology

The invention discloses a medical dressing with a cooling function and a wound healing promoting function, which at least comprises a perforated non-woven fabric layer, a nanometer fiber layer with a gradient structure, a hydrogel layer and a supporting layer. The preparation method of the medical dressing includes steps of covering hydrogel onto the supporting layer; covering the nanometer fiberlayer with the gradient structure on the hydrogel; and finally reinforcing the perforated non-woven fabric layer on the surface of the nanometer fiber layer so as to obtain the medical dressing. The nanometer fiber layer has the gradient structure, and facilitates absorption and retention of liquid of wound, and medicine can reach the surface of the wound after being released, so that wound healing is promoted; the perforated non-woven fabric layer has a physical isolating effect, avoids outside bacteria, can absorb effusion of the wound, can be easily removed from the surface of the wound and is not adhered with the wound; and the hydrogel layer can realize temperature regulation and reduces the temperature of the wound. The medical dressing comprehensively utilizes a medicine loading performance of nanometer fibers and capillary mobility of liquid, and promotes wound healing while cooling.

The invention discloses a small packaged beer and beverage rapid cooling device. The device comprises a refrigerating unit, a cooling tank and an electrical control part, wherein a water circulation system is arranged between the refrigerating unit and the cooling tank, the evaporator of the refrigerating unit is connected with the cooling tank through a water inlet pipe; and after cold water performs heat transfer in the cooling tank, the obtained water flows back to the evaporator of the refrigerating unit through a return pipe and a circulating pump. The invention utilizes the refrigeration technology and heat conduction theory, uses the refrigerating medium for continuous cooling and adopts the types of flow and direct contact to fast cool beverage. Compared with the common air-cooling method, the method of the invention has the advantages of fast cooling rate, large yield, adjustable capacity, simple operation, low operating cost, wide application range, small floor space, light weight and the like.

The invention is a microtype refrigerating system used in cooling computer chips, and its structure: a compressor is connected with a condenser, the condenser is connected with a capillary tube and an evaporator through a dry filter, the evaporator is connected with the compressor through a liquid separator to form a refrigerating loop; the evaporator is a single-stage or multistage evaporator connected in parallel, in series or in parallel and series on connection pipelines between the dry filter and separating tube, the capillary tube is connected on the preposed connection pipeline of each-stage evaporator; the compressor is vapour compression refrigerator, absorbing refrigerator, steam jet refrigerator, compressed air refrigerator, air vortex refrigerator or Stering refrigerator, Vuilleumier refrigerator or GM refrigerator, etc, where the refrigerating capacity is 10-2000W, and the input power is 10-400W, based on mechanical refrigeration and simultaneously actively cooling many heating parts in the computer, and suitable for the requirement of continuously upgrading the computer, and the whole system is small-sized and low-energy consumption, largely lowers the temperature, and has a compact structure, high reliability, and simple operation.

The invention relates to a braided rubber tube automation control linkage production method and an apparatus thereof. The apparatus comprises rubber tube extruders, a rubber tube freezer, a steel wire braiding machine, a sulfurization device, traction machines, and other related equipment. The apparatus further comprises an automatic adjustment and detection system for tube-tire wall thickness uniformity, a waterless cooling system used in a tube-tire and mandrel extruding process, a tube-tire winding and unwinding device with automatic detection and control function, an energy-saving type primary winding braiding machine, a secondary winding braiding machine, a traction mechanism, an automatic controlled system for linkage control and detection, a steel wire braiding machine noise inhibition device, a braiding steel wire breaking detection and control system, a braided rubber tube freezer energy saving application technology and temperature measurement and automatic temperature control refrigeration control system, an automatic dehumidify and drying device during a rubber tube freezing and braiding process, a system for linkage detection and control, an automatic winding detection and control device. In addition, a whole traction drive system and an integrated intelligent monitoring system are designed.

The invention relates to a mine underground cooling and waste heat recycling system, comprising an air cooler unit, a cooling set unit, a heat pump set unit and a user equipment unit, and a mine return air heat pump system or a cooling tower. According to specific implementation requirements, different combined connections are used for forming multiple heat exchange circulation loops, by the multiple heat exchange circulation loops, the underground high-temperature waste heat is recycled and provided for corresponding user equipment, so that the mine underground cooling is realized, and the requirement on heat usage for production and living of the coal mine is satisfied. The mine underground cooling and waste heat recycling system can be widely used in the mine underground cooling and waste heat recycling process.

The invention discloses an air purification device, and relates to the technical field of mining engineering. According to the air purification device, through an air pump, air flows into a dust-removal device for purification, most dust remains in water, and the aim that the air is cooled through heat exchange between the air and the water is achieved; the air through a water storage space is high in humidity, a drying device and an outlet filter screen are arranged on an air outlet pipeline part, wet air is dried and dedusted again, and then the cool and dry air can return into an operationenvironment, so that the air-purification aim is achieved. By means of the air purification device, three functions of dust removal, cooling and air drying are integrated, the wet and dirty high-temperature air is transformed into the dry and clean low-temperature air, the work environment of downhole operation is effectively improved, the downhole air quality is improved, and therefore, the workefficiency is improved.

The invention relates to tooling fabric with a cooling function and an uvio-resistant function. A method for manufacturing the tooling fabric with the cooling function and the uvio-resistant function comprises a first step of using cooling master batch as raw materials and manufacturing the cooling master batch to slicing sheets, a second step of drying the slice sheets, a third step of carrying out spinning on the slicing sheets through a spinning box to manufacture nylon base cooling fibers, a fourth step of adopting a siro spinning technology to spin cotton fibers and the nylon base cooling fibers into blended yarn, and a fifth step of adopting technological measures of 'early opening, later weft insertion and on-machine tension slightly larger' to carry out weaving. A formula of the cooling master batch comprises PA6, bowlder powder, zirconium dioxide powder, silicon dioxide powder, stearic acid dispersants, polystyrene dispersants, low molecular wax dispersants and titanate coupling agents. The tooling fabric has functions of fast heat absorption and fast heat dissipation, and an everlasting cooling feature is guaranteed. Meanwhile, the tooling fabric further has a notable uvio-resistant feature.

The invention relates to a measure for enhancing electric transmission line tower footing frozen soil foundation stability. The measure is characterized in that gravity type heat pipes are buried on the periphery of a tower footing foundation of an electric transmission line, heat preservation materials are distributed on a horizontal layer on the periphery of a pile end and a pile body at the top of the tower footing foundation, and soil layers densely higher than an earth surface strap gradient are built above the earth surface and surrounding tower legs of the tower footing foundation, wherein strap gradient waterproof films are paved in the soil layers. The gravity type heat pipes and the heat preservation materials are effectively combined so that the practical use quantity of the gravity type heat pipes can be greatly reduced, project investment can be greatly reduced in terms of the project, construction difficulty is reduced, and construction period of project measures is shortened. In addition, in terms of overall efficacy, compared with a hot rod single measure, the measure for enhancing electric transmission line tower footing frozen soil foundation stability manyfold improves and radically changes the overall cooling efficiency of the electric transmission line tower footing frozen soil foundation and maintain long-period stability of the tower footing foundation.

The invention provides an automobile heat management system and an automobile, and relates to the technical field of automobiles and is designed for solving the problem of high whole automobile manufacturing cost due to the complicated structure of the existing hybrid electric vehicle heat management system. The automobile heat management system comprises a battery heat management loop and an electric driving heat management loop. A battery module, a first reversing valve, a heat exchanger and a second reversing valve are sequentially connected in series and arranged in the battery heat management loop; cooling liquid flowing through the battery module performs heat exchange through the heat exchanger; an electric driving module, the first reversing valve, an electric driving heat radiation element and the second reversing valve are sequentially connected in series and arranged in the electric driving heat management loop; the cooling liquid flowing through the electric driving moduleperforms heat exchange through the electric driving heat radiation element. The automobile comprises the automobile heat management system. The automobile heat management system and the automobile provided by the invention are used for realizing efficient cooling on the battery module, an electronic voltage booster, a motor and a motor controller in a high-temperature environment and the heat compensation on the battery module in the low-temperature environment.

The invention discloses a phase-change material energy-storage based cooling apparatus for a power battery. The cooling apparatus comprises a power battery, a cooling liquid circulation module and a refrigeration module, wherein the power battery is connected with the cooling liquid circulation module to form heat exchange circulation; heat exchange is carried out between the cooling liquid circulation module and the refrigeration module; the power batter is electrically connected with the cooling liquid circulation module and the refrigeration module separately; and according to the phase-change material energy-storage based cooling method for the power battery, the to-be-cooled power battery pack is cooled by the phase-change material energy-storage based cooling apparatus for the power battery. The cooling apparatus has the advantages of reasonable structure, high temperature control precision, high radiation capability, convenience in use, low power consumption and small size, and is more applicable to popularization and application in the temperature control of the power battery pack.

The invention relates to a high-temperature high-pressure temperature-reducing pressure-reducing device capable of being started and stopped rapidly. The device comprises a pneumatic actuating mechanism, a steam mixing pipeline and a pressure-reducing valve, wherein the steam mixing pipeline is connected with a steam inlet and a steam outlet; the pressure-reducing valve is composed of a valve body, a valve plug, a valve seat and an upper valve cover; and a water-supplying temperature-reducing system, a safety protection system and a dewatering system are arranged on the steam mixing pipeline. The device provided by the invention has the beneficial effects that the device is a steam temperature-reducing pressure-reducing system which is connected in parallel with a steam turbine, can introduce steam generated by the boiler to a steam pipeline or a condenser of the next stage pressure and temperature, the device has the functions of rapid starting and stopping, safe overflowing, safe protection and the like, and is mainly applied to industrial fields, such as a thermal power unit, the coal chemical industry and the coal oil.

The invention discloses an air conditioner control method. The method includes: detecting an operating state of an air conditioner; detecting indoor humidity when an air conditioning system of the air conditioner operates for refrigeration; when the indoor humidity is higher than a first preset humidity, controlling a solution circulating system to dehumidify, and enabling heat exchange between solution between an inlet end of a dehumidifier and an outlet end of a regeneration device and a refrigerant in an air return pipe of a compressor. According to the air conditioner control method, when the air conditioner operates for refrigeration, the indoor humidity is detected, and the air conditioner can be controlled to dehumidify according to the indoor humidity, so that dehumidification can be realized during refrigeration, and combination of dehumidification and temperature regulation is realized.

The invention discloses a method for controlling a variable frequency air conditioner . The method comprises the following steps: an air conditioner is turned on to operate under a refrigeration mode; after the operation time of a compressor of the air conditioner reaches set operation time, the present indoor temperature detected by an indoor temperature sensor is obtained as the first indoor temperature; the difference value between the first indoor temperature and set compensation temperature serves as the second indoor temperature; the temperature difference between the second indoor temperature and the present indoor target temperature is calculated to obtain the indoor temperature difference; the room temperature PID operation is performed according to the indoor temperature difference to obtain the first target frequency; the second indoor temperature is compared with set comfortable temperature; and the room temperature PID control or the dual PID control is performed according to the comparison result. The indoor temperature adjusting comfort of the air conditioner and the low-power-consumption energy conservation of the air conditioner are taken into consideration, and the problem of uncomfortable refrigeration due to blowing out of cold wind by a traditional variable frequency air conditioner is solved.

The invention discloses a device for testing high-temperature load-carrying properties of aluminum and aluminum alloy electric power apparatuses of a power transmission line, which comprises a control computer, a high-temperature box, an electric-hydraulic servo tensile testing machine, a load maintaining control system and a sample special fixture, wherein the high-temperature box is controlled by a temperature controller and arranged between an upper chuck and a lower chuck of the tensile testing machine; the special fixture comprises an upper pull rod and a lower pull rod, the upper end ofthe upper pull rod is provided with a support seat connected with the upper chuck of the tensile testing machine, the lower end of the upper pull rod penetrates through the high-temperature box, the end part of the upper pull rod is provided with a sample connecting member, the lower end of the lower pull rod is connected with the lower chuck of the tensile testing machine, the upper end of the lower pull rod penetrates into the high-temperature box and the top of the lower pull rod is provided with the sample connecting head. The device disclosed by the invention can meet that the sample is subject to long-time loading test at high temperature and the actual operation environment of power appliances is stimulated so as to obtain the strength loss rate of the power appliances under the condition of high-temperature loading, and provides relevant test data and design basis for the high-temperature resistant power appliances.

The invention relates to a system and method by means of power plant waste heat for conducting aeration cooling on a mine. The system by means of the power plant waste heat for conducting the aeration cooling on the mine comprises an air inlet mine, an air exhaust mine, an air cooler and a lithium bromide absorption type refrigerating machine. The air cooler is arranged on an air inlet, and an air door is arranged on a person/material inlet. When the air door is closed, negative pressure is generated on an air inlet mine opening by a mine ventilator, cooling and dehumidification processing is carried out on the ground air through the air cooler, and then the ground air is pumped into the mine. The lithium bromide absorption type refrigerating machine is arranged on the ground, waste heat provided by a mine pithead thermal power plant drives the lithium bromide absorption type refrigerating machine to conduct cooling, the lithium bromide absorption type refrigerating machine generates cold water, and the cold water is used as a cold source to be used by the air cooler. The invention further relates to the corresponding cooling method. The system and method have the advantages of being small in investment, low in operation cost, high in energy utilization rate and good in cooling effect, and is applied to cooling of a seasonal heat damage mine.

The invention relates to functional fiber and particularly relates to polyamide-based cooling fiber and yarn. The polyamide-based cooling fiber is prepared by the following method: (1) taking cooling masterbatch as a raw material, and cutting the cooling masterbatch into slices; (2) drying the slices; and (3) spinning the slices through a spinning box to produce the polyamide-based cooling fiber, wherein a formula for the cooling masterbatch comprises the following components: PA6, jade powder, zirconium dioxide powder, silica powder, stearic acid dispersant, polystyrene dispersant, low molecular wax dispersant and titanate coupling agent. The polyamide-based cooling fiber and yarn have the functions of fast heat absorption and fast heat dissipation so as to ensure lasting cooling characteristic.

The invention relates to a vacuum-pumping system for a wind tunnel body. The vacuum-pumping system includes a multi-level air cooled lobe pump assembly, a set of heat exchangers, a silencer, an overflow valve, and a check valve; the upper part of each air cooled lobe pump is provided with an air inlet, and the lower part of each air cooled lobe pump is provided with an air outlet; two sides of each air cooled lobe pump are provided with a cool air returning opening respectively, so that heat balance of a pump body can be maintained when the pump operates under a high pressure difference; when the pressure of an air inlet connected to the back end of the lobe pump system is greater than the discharge pressure of the lobe pump assembly, a part of pumped air can be directly discharged into the silencer via the overflow valve, and then is discharged into the atmosphere via the silencer; the other part of the pumped air is discharged into the atmosphere via the overflow valve and the silencer. Each vacuum heat exchanger of the system mainly includes a housing, heat exchanger tubes, and an anti-reflux valve. A PLC control technology and a frequency converter technology are adopted by the system, so that the vacuum-pumping system can automatically adjust the pumping speed according to the pressure of an entrance.

The invention discloses a water cooling device used for a dry transformer, in particular to a water cooling device used for the dry transformer and relating to the technique field of transformer accessories. The invention comprises a casing, a baffle is arranged in the casing; the baffle divides the casing into a transformer room and a water-cooling system room. A transformer is arranged in the transformer room, and a condenser and a centrifugal fan are arranged in the water-cooling room. An air intake is arranged on the baffle which is connected with one end of the centrifugal fan and an air outlet is arranged on the baffle which is connected with one end of the condenser. A water feeding pump and a water draining pump are respectively arranged on the casing and are respectively connected with a water intake and a water outlet of the condenser. The invention realizes the aim of decreasing temperature well and stabilizing work state.