41 results about "Field cooling" patented technology

A kit for assisting in the set-up of a fluid pumping or mixing system including a superconducting element capable of reaching a transition temperature during a field cooling process is disclosed. In one embodiment, the kit comprises at least one pumping or mixing element including a levitation magnet and at least one charging magnet substantially corresponding in size, shape, and magnetic field distribution to the levitation magnet. The presence of the charging magnet adjacent the superconducting element during the field cooling process enables stable levitation of the pumping or mixing element, including when in a fluid-filled vessel positioned adjacent the superconducting element.

The invention discloses a waste gas purification system in the rubber processing field. The waste gas purification system comprises a plurality of wind collecting covers, an assistant recovery tower, a desulfurization purification tower, a draught fan, an activated carbon filtration tower or ultraviolet catalytic oxidation waste gas purification apparatus, an oxyhydrogen flame combustor and a treating liquid circulating device, wherein the wind collecting covers are respectively arranged above each working station; the assistant recovery tower is communicated with the wind collecting covers through gas inlet pipes; the desulfurization purification tower is communicated with a gas outlet of the assistant recovery tower; the draught fan is communicated with a gas outlet of the desulfurization purification tower and is used for forcing air into the wind collecting covers and finally discharging to the outside; the activated carbon filtration tower or ultraviolet catalytic oxidation waste gas purification apparatus is connected in series between the desulfurization purification tower and the draught fan; the oxyhydrogen flame combustor is arranged at a wind outlet of the draught fan; and the treating liquid circulating device is used for supplying treating liquid to the desulfurization purification tower. According to the invention, the waste gas purification system in the rubber processing field cools and depressurizes high-temperature waste gas to gradually separate particles and liquid drops included in the waste gas from the waste gas and collect in the collecting covers; and the assistant recovery rate can be up to 70%.

A method for setting the total water amount of the thermal process of a steel slag strip ladle aims to reduce iron oxide slag after the thermal process and the cooling process and also reduce the amount of cooling water for 1 ton of slag. The inside of the slag ladle is provided with a slag pot surveying rod; the spraying pipe of a field spraying system is provided with a watermeter; the actual volume of the slag ladle and the actual flow of the nozzle used in actual working condition are measured according to the water amount fo the slag ladle; a trial rod or the comparison visual observation method is utilized to measure the value L which is the distance between the upper surface of steel slag in the slag ladle and the upper edge of the tank, the sampling tables of the value L and the volume of the slag ladle are given; the set total water amount parameter is calculated; and the total water amount is adjusted continuously according to the actual field cooling effect to form a chart that the smoldering time of steel slag changes with the value L and provide a reference for setting technological parameters.

The invention discloses a device for online measuring the wall thickness of a hot-rolled metal pipe by using gamma rays, which comprises a horizontally movable field measurement C-shaped box, a gamma ray detector, a charge coupled device (CCD) camera, a radioactive source, a field control box with a programmable logic controller (PLC) and a measurement signal conversion unit, an industrial personal computer main cabinet, an exchanger, a database server, a terminal set, a field cooling circulation water channel, a gas circuit and an infrared temperature measurer. The device realizes continuous automatic measurement on a hot-rolled metal pipe production line, and simultaneously can output control signals for realizing the automatic closed-loop control of a rolling mill. The CCD camera takes part in eccentricity correction calculation, so using restrictions to the measurement device are relaxed, and the measurement accuracy is improved and is lower than + / -0.2 percent. Simultaneously, measurement data is digitally transmitted, so the device realizes the long-distance and anti-interference transmission of the measurement signals and effectively solves the problems of long distance between a measurement field and an operating room and intensive field interference.

A method for increasing the stability of a high-temperature superconductor magnetic suspension system comprises the following: (A) a step of field cooling, during which, a suspension body of the high-temperature superconductor magnetic suspension system is supported at a preset position through a support system, and then refrigeration equipment is started to ensure that a superconducting block enters superconducting state; (B) a step of support release, during which, the support system releases the support on the suspension body so as to ensure that the suspension body is in an idling stable state; (C) a step of loading, during which, external force is applied on the suspension body so as to ensure that the suspension body is in a stable suspension state under external force loading; and (D) a step of loading and the external force release, during which, the suspension body is in the stable suspension state again, and the state is taken as an initial state for the operation of the high-temperature superconductor magnetic suspension system. The method does not need to change the construction of the high-temperature superconductor magnetic suspension system, and ensures simple structure and operation and cost reduction; moreover, the method can obviously improve the stability of the high-temperature superconductor magnetic suspension system, and is suitable for any high-temperature superconductor magnetic suspension systems based on the high-temperature superconducting block type magnetic suspension principle.

A tissue ablation system facilitates lesioning deep tissue while preventing damage to superficial tissue and includes a probe having a distal end portion, at least one transducer carried on the distal end portion, and at least one acoustically transparent heat removal element thermally coupled to a target tissue within the beam path of the transducer. The transducer delivers acoustic energy to the tissue through the heat removal element in order to ablate the tissue; the heat removal element removes sufficient thermal energy from the tissue volume to prevent thermal necrosis in superficial tissue. The heat removal element may be a heat sink or a convective element. An optional temperature sensor provides advisory data to a practitioner and / or is coupled to a feedback control system operable to control delivery of acoustic energy to the tissue and / or a rate of thermal energy removal therefrom.

The invention relates to an integrated high-temperature-resistant aerosol spray pipe, which belongs to the technical field of cooling and dust removal, and includes an air pipe, a spray pipe water pipe, an air-water mixing chamber and an aerosol nozzle connected to the mixing chamber, and is characterized in that: the air pipe and the spray pipe The water pipes are arranged parallelly in the water pipe of the spray pipe, the mixing chamber is arranged in the water pipe of the spray pipe, and both the air pipe and the water pipe of the spray pipe are connected with the mixing chamber. The air pipe of the present invention is installed inside the water pipe of the spray pipe, the external structure is simple, and the installation and use are convenient; the outer wall of the spray pipe is self-cooled by the cooling water in the pipe, and can be used under high temperature and closed conditions; the air-water mixing chamber of the aerosol nozzle is built-in For the spray pipe, the structure of the external nozzle is simple; the air mist cooling method is adopted, the cooling is uniform, and the cooling intensity can be adjusted in a large range.

The invention provides a crystal pulling system. The system comprises a thermal field cooling device, and the thermal field cooling device comprises a cylindrical heat absorbing device and a cooling liquid loop which is arranged inside the cylindrical heat absorbing device; the length direction of the cylindrical heat absorbing device is consistent with the crystal pulling direction, the cooling liquid loop is arranged in the length direction, and the thermal field cooling device is used for cooling a thermal field which is generated by heating a silicon melt in a crucible. According to the crystal pulling system, the thermal field in a crystal pulling chamber can be cooled through the thermal field cooling device after crystal pulling is finished; the cylindrical heat absorbing device absorbs heat of the thermal field, the cooling liquid loop in the cylindrical heat absorbing device takes away the heat, thus cooling of the thermal field is accelerated, the efficiency of cooling the thermal field is improved, the efficiency of the crystal pulling manufacturing technology is further improved, and the capacity is increased.

The invention discloses a vehicular micro-vacuum fruit-vegetable picking field cooling device and a pre-cooling method thereof. The device comprises a micro-vacuum container and further comprises a liquid nitrogen steel cylinder, a vaporization pressure reducing device, a vacuum generator, an air storage tank and an evacuation pipe in sequential communication through an air pipe. An air suction pipe and an air return pipe are arranged on two opposite inner sides of the micro-vacuum container respectively, and the vacuum generator and the air storage tank are communicated with the air suction pipe and the air return pipe through the air pipe with a check valve and a first electromagnetic valve respectively. A second electromagnetic valve is mounted on the air pipe between the air storage tank and the evacuation pipe. The vehicular micro-vacuum fruit-vegetable picking field cooling device has advantages that short pre-cooling time and low temperature fluctuation and uniform internal temperature difference of the micro-vacuum container are realized, and instant cooling after picking can be guaranteed; safety and reliability are achieved due to adoption of nitrogen as a gas source for the cooling device, and by sensible heat and latent heat of vaporization of liquid nitrogen, unpowered power source cooling is realized, the problem of lack of electricity and power in a picking field is solved, flexibility in use of a pre-cooling device is improved, and excellent comprehensive performances and promising market prospect are realized.

The invention discloses a synchronous landing system and a cooling method for a high-temperature superconducting maglev train. The synchronous landing system comprises a synchronous landing unit and an auxiliary support mechanism. In the field cooling process of high-temperature superconducting maglev trains, this application can realize synchronous field cooling of multiple suspended Dewars, effectively improve the positioning accuracy between the suspended Dewars and the permanent magnet track, and suppress vertical and lateral positioning errors and non-synchronization The unbalanced load-carrying performance distribution, suspension force attenuation, lateral drift and rollover caused by field cooling have improved the distribution, suspension guidance performance, stability, reliability and safety of high-temperature superconducting maglev trains with large loads. It has important application value in the fields of electromagnetic launch and maglev transportation.

The invention belongs to the field of high-temperature superconducting magnetic levitation, and is a superconducting translational magnetic levitation system based on superconductor complete diamagnetism, mainly including a superconducting translational magnetic levitation structure, a calibration device and a measuring device. Specifically, it is divided into superconducting flat layer, permanent magnetic floating platform, coolant container, small ball, arc guide rail, image acquisition equipment, and bracket. The complete diamagnetism of the superconductor under zero-field cooling eliminates the pinning of the magnetic flux, so that the translation of the permanent magnetic levitation platform is not hindered; The levitation force also reduces the influence of the superconductor splicing gap on the translational damping, the structure is simple and the feasibility is high; the size of the permanent magnetic levitation table is much smaller than the superconducting plane size, which reduces the edge effect of the superconductor and ensures the stability of the levitation force. The invention solves the problems of complex structure, large mass, large frictional damping and the like in the existing semi-physical simulation method of the air flotation platform.

The invention provides a superconducting motor adopting field cooling superconductive permanent magnets. The superconducting motor comprises a vacuum cover, a temperature control module, a heat conduction core, the superconductive permanent magnets, an armature and a magnetizing module. The heat conduction core is connected with the temperature control module, heat can be transferred between the heat conduction core and the temperature control module, the temperature control module is used for transferring the heat through the heat conduction core and then controlling the temperature of the superconductive permanent magnets; the superconductive permanent magnets at even number are evenly fixed to the heat conduction core in the circumferential direction; the armature and the heat conduction core are coaxially arranged and can rotate relatively in the axial direction; the heat conduction core and the armature are covered with the vacuum cover; the magnetizing module is arranged outside the vacuum cover. According to the superconducting motor adopting the field cooling superconductive permanent magnets, a field cooling magnetizing method is adopted, so powerful magnetic fields can be captured by the superconductive permanent magnets; in addition, the magnetic fields can be maintained without electric energy consumption. The superconductive permanent magnets can serve as stators or rotors of the motor. Compared with the prior art, the superconducting motor adopting the field cooling superconductive permanent magnets has the advantages that the performance is greatly improved and power consumption is reduced.

A method for setting the total water amount of the thermal process of a steel slag strip ladle aims to reduce iron oxide slag after the thermal process and the cooling process and also reduce the amount of cooling water for 1 ton of slag. The inside of the slag ladle is provided with a slag pot surveying rod; the spraying pipe of a field spraying system is provided with a watermeter; the actual volume of the slag ladle and the actual flow of the nozzle used in actual working condition are measured according to the water amount fo the slag ladle; a trial rod or the comparison visual observation method is utilized to measure the value L which is the distance between the upper surface of steel slag in the slag ladle and the upper edge of the tank, the sampling tables of the value L and the volume of the slag ladle are given; the set total water amount parameter is calculated; and the total water amount is adjusted continuously according to the actual field cooling effect to form a chart that the smoldering time of steel slag changes with the value L and provide a reference for setting technological parameters.

The invention provides a fuel cell device, which comprises a negative collector plate, a negative combined flow field cooling plate, a membrane electrode assembly, a positive combined flow field cooling plate and a positive conducting panel, which are sequentially fitted and connected with one another, wherein the membrane electrode assembly comprises an exchange membrane, a plurality of negative catalyst layers, a plurality of negative gas diffusion layers, a plurality of positive catalyst layers and a plurality of positive gas diffusion layers; the negative collector plate comprises an insulting base body and a plurality of conductive layers; each conductive layer is connected with a collector terminal through a lead; each lead between each conductive layer and each collector terminal is connected with a current sensor in series; the negative combined flow field cooling plate and the positive combined flow field cooling plate are composed of a plurality of sequentially arranged conductive region modules and insulating region modules; and the insulating region modules are arranged between the adjacent conductive region modules. According to the fuel cell device provided by the invention, practical reaction performance distribution and reaction condition distribution of various local regions in the cell can be monitored in real time.