39results about How to "Efficient exchange" patented technology

The invention discloses a tooth three-dimensional digital model registration and tooth neck line extraction method based on oral scanning and CBCT, and relates to the field of tooth three-dimensional digital model registration. Comprising the following steps: respectively acquiring three-dimensional oral images of oral scanning and CBCT (cone beam computed tomography), and automatically segmenting three-dimensional structures of dental crowns and teeth by utilizing pre-trained V-Net and ToothNet image segmentation models. Alignment and registration of two modal images are realized through a feature extraction network, an information exchange network and a rigid transformation network. The feature extraction network extracts local and global features by using far-point sampling and a dynamic graph convolutional neural network, the self-attention and cross-attention module performs feature enhancement and information exchange between the same mode and different modes, and based on a registration result, a tooth neck line is further extracted and optimized. According to the method, the tooth three-dimensional digital model can be quickly and accurately registered, a high-precision tooth neck line extraction result is provided, the manpower and time cost of a medical institution can be reduced, and the medical efficiency is improved.

The invention discloses steelmaking flue gas recovery and waste heat utilization equipment and a use method, and relates to the technical field of flue gas waste heat recovery. Dust in the steelmaking flue gas can be filtered through the filter cartridge before the flue gas enters the heat exchange mechanism, and then the clean flue gas is conveyed into the heat exchange mechanism, so that the inner wall of the heat exchange barrel can be kept in a clean state all the time, the dust in the steelmaking flue gas is prevented from being attached to the inner wall of the heat exchange barrel, heat transfer is prevented from being hindered, and the service life of the steelmaking flue gas is prolonged. The smoke dust scraping assembly can scrape off smoke dust attached to the inner wall of the filter cartridge, the self-cleaning effect can be achieved while the heat of the steelmaking smoke gas is recycled, and therefore the good filtering effect of the filter cartridge is always kept, and the scraped-off smoke dust can be collected in a centralized mode under pushing of an auger. When high-temperature flue gas passes through the heat exchange assemblies, the heat exchange assemblies can rotate around the axes of the heat exchange assemblies, so that surrounding clear water is disturbed, clear water at different positions is stirred and mixed, and water temperature areas at different positions are consistent.

The invention provides a distributed energy information modeling method for on-site coordination control of an active power distribution network, and belongs to the technical field of power grid control. Comprising the following steps: based on intelligent electronic equipment and a distributed energy system, establishing an equipment side information model according to an IEC61850 standard; according to an IECCIM expansion principle, distributed energy CIM expansion is carried out on the power system information model at a master station side; performing static topology model fusion and measurement model fusion on the equipment side information model and the electric power system information model after CIM expansion; and constructing a fusion model by utilizing a protocol mapping mode, and mapping data of the equipment side information model and the power system information model by utilizing the fusion model. According to the invention, the problem of model fusion between the terminal equipment and the distributed energy and the master station system is solved, a unified lightweight object-oriented information model for distributed energy cooperative control is established, and reliable and real-time exchange of equipment-equipment and equipment-master station information is realized.

The invention belongs to the technical field of cross culture of biological materials and organoids, and particularly relates to an ECM protein for three-dimensional culture of vascular organoids. HA-; the invention relates to a preparation method and application of Gel composite hydrogel. In order to solve the problems that in the 3D culture process of existing cell spheres or organoid spheres, matrigel derived from mouse sarcoma seriously depends on, components are undefined, the price is high, and immunogenicity exists, the composite gel with the definite components is provided and used for replacing Matrigel to conduct 3D culture of vascular organoids. The composite hydrogel prepared by the invention has the characteristics of short gelation time, good biocompatibility, adjustable gel components and the like under the synergistic effect of all the raw materials, can solve the problem of matrigel used for 3D culture of organoids, can replace the potential of matrigel in the future, reduces the price of 3D culture cell scaffold materials, and has broad application prospects. Meanwhile, the method can also be used in the regenerative medicine field of other two-dimensional or three-dimensional cell and organoid culture.

The invention relates to the technical field of zinc powder manufacturing equipment, and particularly discloses a continuous production inert zinc powder atomization preparation device which comprises an atomization furnace, the bottom of the atomization furnace fixedly communicates with communicating pipes, and the two communicating pipes are connected with a large grading system and a small grading system correspondingly. Wherein one ends, far away from the atomizing furnace, of the large grading system and the small grading system are fixedly communicated with a balance tank. Molten zinc can be preliminarily refined when passing through the flow guide holes under the action of pressure intensity, finally enters the polymerization groove in the polymerization base and is differentiated again through the flow diffusion holes communicated with the polymerization groove, the molten zinc can be differentiated into trickles in a multi-stage mode through the multi-stage differentiation mechanism, the trickles can be more evenly distributed in the atomization chamber, and therefore the atomization effect is improved. By means of the technical scheme, the contact area between atomized gas and the liquid zinc is larger and more uniform, the situation that local liquid zinc is too much or too little is avoided, it is ensured that each part of liquid zinc can be fully and stably atomized, zinc powder with more uniform particle size is produced, and the product quality is improved.

The invention provides an NC30Fe high-chromium nickel-based alloy pierced billet as well as a preparation method and application of the NC30Fe high-chromium nickel-based alloy pierced billet. The preparation method comprises the following steps: firstly, heating an NC30Fe high-chromium nickel-based alloy tube blank to a specific charging temperature, and perforating by utilizing a hot cross rolling perforation process; in the punching process, it is ensured that the dimensional tolerance and eccentricity of a pierced billet meet the requirements by strictly controlling the roller distance, the top temperature and the extension coefficient; and then, quenching treatment is carried out on the pierced billet subjected to perforation, so that the grain size is controlled to be within the range of grade 3 to grade 7, and the high-temperature strength and creep resistance of the material are improved. According to the preparation method disclosed by the invention, through introduction of a hot cross piercing process, the problems of more surface defects, large eccentricity and difficulty in grain control caused by a traditional hot extrusion process are solved, the yield is increased to 93% or above, and the surface smoothness and the dimensional precision are remarkably improved. The pierced billet is suitable for preparation of high-temperature corrosion-resistant and high-precision nickel-based alloy pipes in the fields of petroleum, chemical engineering, aerospace and the like, and has high application value.

The utility model discloses a bathing and domestic wastewater heat recycling device, and relates to the technical field of wastewater resource recycling. The device comprises a waste water pipe, one end of the waste water pipe is fixedly connected with a filtering device, one end of the filtering device is fixedly connected with a water pump, one end of the water pump is fixedly connected with a heat exchange device, the heat exchange device comprises an upper guide rod, and a lower guide rod penetrates through a rear end plate and is fixedly connected with one end of a supporting column. A plurality of heat exchange plates are clamped between the front end plate and the rear end plate, a hot inlet pipe and a hot discharge pipe are fixedly connected to the inner walls of the two circular grooves in one side respectively, a cold water inlet pipe and a cold water outlet pipe are fixedly connected to the inner walls of the two circular grooves in the other side respectively, one end of the hot inlet pipe is fixedly connected with one end of a water pump, and the other end of the hot outlet pipe is fixedly connected with the other end of the water pump. By arranging the heat exchange device and the filtering device, the effects of reducing cost, converting heat energy and filtering waste water to protect the heat exchange device are achieved.

A system provides adaptive adjustments to perspective views for improved perception of details for a user associated with a target entity of a virtual environment. The system can generate a customized three-dimensional (3D) view for each individual user participating in the communication session. The system is capable of generating a customized three-dimensional view for each individual user without modifying the 3D model of the virtual environment, thus being capable of maintaining the 3D environment while each participant may have an adjusted angle and position for various virtual objects. The system is capable of adaptively adjusting the angle or position for an entity in a viewing angle of view, or changing the scale of a perspective view for a target entity. The adjustment can maximize detail awareness for each participant of the communication session according to the viewpoint of each viewer. These adjustments can be made simultaneously while maintaining participants arranged in specific spatial relationships without changing.

The invention discloses a tube nest type paraffin heat storage device, and relates to the technical field of heat storage devices, the tube nest type paraffin heat storage device comprises an outer shell, a mounting shell and a plurality of groups of tube nest assemblies, each tube nest assembly comprises a fixing frame, a plurality of heat storage tubes and tube hoops used for fixing the heat storage tubes, and each heat storage tube comprises a tube body, a heat storage medium and a heat exchange promoting mechanism. The heat exchange promoting mechanism is arranged in the pipe body and used for removing solid paraffin solidified on the inner wall of the pipe body in the heat release process and pushing the solid paraffin towards the inner wall of the pipe body in the heat absorption process so as to promote heat exchange. The heat exchange promoting mechanism is arranged in the heat storage pipe, solid paraffin solidified on the inner wall of the pipe body can be effectively removed in the heat release stage, heat resistance is reduced, it is ensured that heat is smoothly transmitted to liquid paraffin, and heat release is completed; and the contact area between the paraffin and the pipe wall is increased, and efficient absorption of heat is promoted.

The present invention discloses a data acquisition platform and a numerical control system of an edge computing module of a numerical control system, including: a driver layer and an interface layer, wherein the driver layer performs data interaction with a data link layer, and the interface layer performs data interaction with an application program; the driver layer constructs an independent structure for each slave station through the real-time status information of each slave station contained in the uplink data of each slave station separated from a periodic lumped frame, stores the real-time status information of each slave station in the corresponding structure, completes the real-time status description of each slave station, caches the real-time status information corresponding to each slave station to the cache area of ​​the corresponding sampling channel, and provides data services for intelligent applications through the interface layer. The present invention has the characteristics of simple configuration, full types of collected data, and high real-time collection effect, and provides a basis for developing intelligent applications in edge computing modules.

The invention discloses a hydrogen storage tank filled with a hydrogen adsorption material, and belongs to the technical field of hydrogen storage tanks. The hydrogen storage tank filled with the hydrogen adsorption material comprises a tank body, a tank cover is installed at one end of the tank body, a heat exchange pipe is arranged in the tank body, the two ends of the heat exchange pipe penetrate through the other end of the tank body, the heat exchange pipe is in a U shape, a plurality of cooling fins are installed on the outer side of the heat exchange pipe, and the hydrogen storage material is arranged among the cooling fins. Supporting bases are installed on the two sides of the bottom end of the tank body, a bottom box is installed at the bottom ends of the supporting bases, a limiting mechanism is arranged in the bottom box, universal wheels are installed on the two sides of the bottom end of the bottom box, one end face of the tank cover communicates with a gas inlet and outlet pipe, a valve is installed at one end of the gas inlet and outlet pipe, and a gas inlet and outlet connecting pipe is installed at one end of the valve. The thermal management efficiency of the hydrogen storage tank can be effectively improved, the problem that an existing hydrogen storage tank is poor in thermal management effect is solved, and high practical value is achieved.

The invention relates to the technical field of LED display screens, and discloses an anti-optical crosstalk LED display screen with a quantum dot luminescent material, which comprises a shell, a fan is fixedly mounted on the inner wall of the back of the shell, an LED display module is fixedly mounted on the inner wall of the shell, a circulating pump is fixedly mounted on the inner wall of the bottom of the shell, and the LED display module is fixedly mounted on the inner wall of the bottom of the shell. The output end of the circulating pump is fixedly connected with a circulating pipeline, and an interaction assembly is arranged on the back face of the LED display module. In the process that the circulating pump drives cooling water to flow in the circulating pipeline, the impeller is driven to rotate on the outer surface of the fixing rod, so that the multiple sets of spiral blades promote the cooling water located in the center of the interaction cavity to interact with the cooling water close to the interaction cavity and away from the center. The internal and external temperatures of the cooling water in the circulating pipeline are more balanced and stable, so that the cooling efficiency of the cooling water in the circulating pipeline on the LED display module is improved, and the use effect of the quantum dot light-emitting material is ensured.

The invention relates to the technical field of organic synthesis, in particular to a deuterated quinoxalinone diaryl methane compound as well as a synthesis method and application thereof. According to the invention, hydrogen transfer of quinoxalinone N = Csp2-H and proton coupling electron transfer of p-methenone are induced by bromine free radicals, and a free radical-free radical cross coupling pathway is established between imine free radicals and diaryl methane free radicals, so that a series of quinoxalinone diaryl methane intermediates are synthesized; and carrying out selective H / D exchange on the site of a tert-benzyl C-H bond of the intermediate through a bromine free radical to obtain a series of highly deuterated quinoxalinone diaryl methane derivatives. A one-pot method is adopted to continuously construct a carbon-carbon bond and a carbon-deuterium bond, the deuterated quinoxalinone diaryl methane derivative which has potential drug activity and can be used for preparing antitumor drugs is obtained, the advantages of high reaction efficiency and atom and step economy are manifested, and the problems of metal residues and the like caused by the use of a transition metal catalyst are avoided.

Embodiments of the present application provide a neural network-based medical image segmentation system, which comprises a feature extraction module for extracting features from a medical image and a classifier for segmenting the medical image according to the features extracted by the feature extraction module, wherein the feature extraction module comprises an encoder and a decoder constructed based on a convolutional neural network and a transformer connected between the encoder and the decoder. This scheme automatically learns and focuses on important regions at any position in the image via the transformer and suppresses irrelevant interference information, and can effectively exchange information between feature representations of different regions, different sub-pixels in the image, accurately depict the dependence and relationship between pixels, and thus accurately and explicitly capture and model long-distance global context information, thereby improving the segmentation efficiency and segmentation accuracy of medical images.

The invention discloses an automatic adjusting device for a water-cooled frequency converter test bed, and relates to the technical field of heat dissipation, the automatic adjusting device comprises a frequency converter test bed function assembly, a water cooling unit and a control system, the frequency converter test bed function assembly comprises a power module, a capacitor, a laminated busbar and a radiator, and the capacitor and the power module are connected through a copper busbar. The power module is mounted on the radiator, a plurality of groups of coil flow channels are arranged in the radiator, and a medium for radiating flows in the coil flow channels; the water cooling unit is communicated with the frequency converter test bed functional assembly through a medium pipeline, and media in the water cooling unit and the frequency converter test bed functional assembly circularly flow; the control system is electrically connected with the frequency converter test bench functional assembly and used for controlling the medium flow. Due to the design of the flow channel of the radiator in the device, liquid can take away heat in the flow channel more easily, and heat exchange with higher efficiency is achieved; and due to the design of the heat dissipation aluminum plate, better optimal flow velocity and flow are provided for heat dissipation of the capacitor and the interior of the whole device.

The invention discloses a data security exchange method and system based on a support vector machine, and the method comprises the steps: carrying out the preprocessing of collected original data, and obtaining processed data; key features are extracted based on the processed data; building an encryption model by adopting a support vector machine based on the key features; and encrypting the original data by using the encryption model to realize secure data exchange. According to the invention, the data can be effectively exchanged and utilized on the premise that the data security is not sacrificed. Each link in the data exchange process is strictly controlled and optimized, the data exchange efficiency is improved, potential safety risks are reduced, and continuous improvement and adaptability of the data exchange process are ensured through continuous feedback and optimization.

The disclosure provides a three-dimensional packaged integrated high-density optoelectronic interconnection device, which can be applied to the fields of optoelectronic integration, optical communication and optical computing, and the device comprises: an electrical interconnection chip for transmitting electrical signals, transmitting electrical signals generated by an electrical computing chip to an optical interconnection chip for processing, and / or feeding back electrical signals processed by the optical interconnection chip to the electrical computing chip; an optical interconnection chip for processing and transmitting optical signals, converting received electrical signals into optical signals for transmission, and / or converting received optical signals back into electrical signals for transmission; an interposer for realizing electrical signal distribution and connection between the electrical computing chip and the electrical interconnection chip; and micro-bumps for establishing physical connection between the electrical interconnection chip and the optical interconnection chip and between the optical interconnection chip and the interposer, so as to realize transmission of electrical signal data between multiple chips.

The utility model provides a biscuit stuffing stirrer and mixing and stirring equipment, and relates to the technical field of biscuit production. The biscuit stuffing stirrer comprises a vertical stirring tank body and a stirring assembly; the stirring assembly comprises a first stirring shaft, a second stirring shaft and a multi-layer composite stirring blade structure arranged in the stirring cavity, and the second stirring shaft is sleeved with the first stirring shaft; the multi-layer composite stirring blade structure comprises a main blade unit group, an auxiliary blade unit group and a pushing blade unit group which are sequentially arranged along the direction far away from the bottom plate; the main paddle unit group comprises a plurality of first paddles, each first paddle comprises an extension rod and a mixing scraper, and the mixing scraper inclines towards the first stirring shaft along the direction close to the bottom plate; the auxiliary paddle unit group comprises a second paddle, one end of the second paddle is connected with the second stirring shaft, and the other end of the second paddle extends towards the cylindrical inner wall; the pushing paddle unit group comprises at least one pushing rod, and the pushing rod is connected with the second stirring shaft, extends towards the direction of the cylindrical inner wall and then extends along the direction far away from the bottom plate.

The invention relates to the technical field of air conditioner outdoor cases, in particular to a heating ventilation air conditioner outdoor energy-saving case which comprises a first synchronous gear, a synchronous belt piece is arranged outside the first synchronous gear, a lower transverse shaft piece is arranged on one side of the synchronous belt piece, and a centrifugal clutch is arranged at one end of the lower transverse shaft piece. A first bevel gear, a bevel gear frame body and a second bevel gear are arranged at one end of the centrifugal clutch. According to the energy-saving defrosting component set, when the heating power of the air conditioner is high and the heat exchange efficiency is affected by frosting of cooling fins, automatic defrosting can be achieved through a centrifugal clutch, gear transmission, a reciprocating lead screw and other structures, good heat exchange is maintained, and the energy consumption of the air conditioner is reduced; the dust cleaning component group can automatically remove dust on the dustproof net plate, so that the ventilation opening is prevented from being blocked, the operation state is guaranteed and component abrasion faults are reduced; and the automatic defrosting and cleaning functions can reduce the manual maintenance requirement, and the maintenance cost is reduced.

The utility model relates to dust removal device technical field, concretely relates to a water cooling integrated cyclone dust collector, and the device structure includes the casing, sets up the air inlet pipe, the air outlet pipe in the casing outside and is penetrated to the casing, the impeller rod is longitudinally and rotationally arranged in the casing, the water pump is arranged in the casing bottom, and the cooling channel is arranged on the casing side wall around, through the impeller rod and water pump axle linkage design, utilize the air intake airflow drive impeller rotation to realize self -supply energy water cooling circulation, through the cooling channel in the casing interlayer cavity and the synergic effect of rotary filter plate, complete gas cooling in the dust removal process simultaneously, integrate dust removal and cooling function in one, have the comprehensive advantage that energy -conserving and cost -reducing, dust removal cooling synchronization, compact structure and maintenance cost are low.

The utility model relates to door and window technical field discloses indoor fresh air air conditioning electric drive door and window, including door and window shell, motor and ventilation groove etc. Door and window shell inner chamber both sides are equipped with window frame, and the upper part is opened and is installed the groove, and the motor is equipped with the front and rear portion of installation groove, and its rotor coaxial installation screw rod, and the screw rod surface is screwed and is connected drive block, and drive block bottom is linked with window frame upper surface, ventilation groove is equipped with door and window shell surface both sides, and the inner chamber is installed fan. This electric drive door and window is driven screw rod rotation through motor, makes drive block to drive window frame accurate, stable movement, can adjust door and window opening and closing degree quickly, provides flexible and automatic basis for indoor fresh air air conditioning. Meanwhile, the fan in the ventilation groove initiatively promotes indoor and outdoor air efficient exchange, accelerates air circulation, effectively adjusts indoor fresh air volume, and timely improves indoor air environment. The patent product realizes the combination of electric drive and fresh air regulation, satisfies people's requirement to indoor air quality.

The invention relates to the technical field of paper repairing, in particular to a paper repairing mechanism which comprises a working box and a soaking tank fixedly installed on one side of the working box, a conveying belt is further arranged on the top face of the working box, and a driving motor used for driving the conveying belt is arranged on one side of the conveying belt; the soaking assembly is arranged in the soaking tank, and the soaking assembly is used for conveying and soaking the paper needing to be repaired; and the drying assembly is arranged in the middle of the top end of the working box, the drying assembly is arranged above the conveying belt, and the drying assembly is used for drying the soaked and repaired paper. Compared with the prior art, the drying assembly is arranged, meanwhile, uneven paper stress caused by uneven airflow directions is avoided, effective exchange of internal air and external air is promoted through the ventilation grille, moisture accumulation is prevented, temperature fluctuation is reduced, and paper damage caused by too high temperature is avoided.

This application relates to the field of electrocatalysts and their preparation technology, specifically to a phosphorus-doped cobalt-molybdenum alloy electrode, its preparation method, and its application. This application solves the problem of low Faradaic efficiency and yield in existing electrocatalytic conversion of nitrate to ammonia. The catalyst for nitrate-to-ammonia reduction with a nanosheet structure obtained by phosphating a sample prepared from a Co and Mo composite exhibits excellent Faradaic efficiency and yield in nitrate-to-ammonia reduction. Test results show that the prepared P-CoMo / NF nanoalloy catalyst achieves an ammonia yield as high as 13700.49 μg h⁻¹ in a mixed solution of 1 mol / L KOH and 0.1 mol / L KNO₃ at -0.5 V vs. RHE. ‑1 cm ‑2 The Faraday efficiency remained at 91.69%. Furthermore, the ammonia yield and Faraday efficiency remained stable over 10 cycles at -0.5V vs. RHE.

The present invention is a denitrification system for heating up by combustion in a flue, including a flue before denitrification, a flue for denitrification treatment, and a control system. A heat exchanger is connected to the flue before denitrification and the flue for denitrification treatment, and a low-temperature flue gas channel before denitrification and a high-temperature flue gas channel after denitrification are arranged in the heat exchanger; an SCR denitrification reactor and a flue gas sampling structure are arranged in the flue for denitrification treatment; a direct-fired heating device is arranged in the flue before denitrification, and the direct-fired heating device includes a plurality of flame burners, the center line of the flame stream of each flame burner is tangent to an imaginary tangent circle, the flame injection direction of each flame burner is arranged opposite to the direction of the flue gas flow, and the flame injection length of each flame burner is arranged to be adjustable. The direct-fired heating device is arranged in the present invention to directly heat up the flue gas, so as to promote the flue gas temperature to reach the temperature range of the ideal denitrification reaction of the catalyst, realize the expected denitrification reaction, meet the ultra-low emission requirements, and improve the economic benefits of equipment operation.

The invention relates to a high-flow temperature and humidity oxygen therapy joint for a tracheotomy patient, which comprises a corrugated connecting pipe, one end of the corrugated connecting pipe is provided with a first quick plug for connecting a high-flow temperature and humidity oxygen output pipe, and the other end of the corrugated connecting pipe is connected with a straight pipe; a second quick plug connected with a trachea cannula is arranged at one end of the straight pipe, and an exhaust hood is arranged at the other end of the straight pipe; an opening is formed in the exhaust hood, an annular cavity is formed in the periphery of the opening, the four edges of a movable rod plate are arranged in the annular cavity in a sliding mode, the center of the movable plate is rotationally connected with a turning cover, and a plurality of exhaust holes are formed in the turning cover in an array mode. A V-shaped elastic piece is further fixed to the movable plate, and the free end of the V-shaped elastic piece abuts against the end, away from the rotating shaft of the turning cover, of the turning cover so that the turning cover can keep the closing tendency in the natural state.

The invention provides a casein source 3D printing bio-ink and a preparation method of a biological scaffold and cell culture meat. The bio-ink is prepared from the following raw materials in parts by weight: 15.6 parts of gelatin; 2.6 parts of sodium alginate; 4.2 parts of casein; 52.5 parts of a sodium hydroxide deionized water solution with a pH value of 8; and 87.5 parts of a sterile 1 * PBS buffer solution. The ink is subjected to extrusion type 3D printing and calcium chloride crosslinking to obtain a biological scaffold; c2C12 cells are inoculated on the support, and cell culture meat is obtained through proliferation-differentiation culture. The problems that existing 3D printing bio-ink is single in performance and poor in component adaptability, a biological scaffold material is insufficient in mechanical stability, and nutritional ingredients are deficient are solved. The prepared bio-ink has excellent mechanical properties and printing adaptability, and provides key technical support for industrial preparation of cell culture meat.

The invention discloses a device and method for testing an effective heating area of a tubular resistance furnace, and the device comprises a temperature measurement mechanism disposed in a tubular furnace and a positioning adjustment mechanism used for installing the temperature measurement mechanism, and one end of the tubular furnace is provided with a temperature control instrument extending into the tubular furnace. The positioning adjusting mechanism comprises a positioning block arranged at the other end of the tubular furnace and a rotating block embedded in the positioning block, a first temperature measuring tube is arranged on the positioning block, a second temperature measuring tube is arranged on the rotating block, and the temperature measuring mechanism comprises multi-section temperature sensors arranged in the first temperature measuring tube and the second temperature measuring tube in a penetrating manner; the method comprises the following steps: 1, installing a temperature measuring mechanism; 2, testing an effective heating area; and 3, determining a uniform temperature area of the tubular furnace. According to the invention, the multi-section temperature sensor is adopted for regional testing, so that the real-time temperature values of different positions in the tubular furnace can be conveniently tested at the same time, the uniformity of the temperature in the tubular furnace and the uniform temperature region can be conveniently determined by technicians, and the testing effect is good.

This utility model discloses a fluid kinetic energy heat pump, belonging to the technical field of heating and cooling equipment. It mainly includes a cold water tank and a hot water tank. The hot water tank is connected to an external circulation outlet pipe and an internal circulation return pipe. A large heat exchanger is installed between the cold water tank and / or the hot water tank and the internal circulation return pipe. The water inlet of the large heat exchanger is connected to the cold water tank and / or the hot water tank via an internal circulation pump. The water outlet of the large heat exchanger is connected to the internal circulation return pipe. The refrigerant circuit of the large heat exchanger is connected in parallel with one or more refrigerant heat exchange systems. The external circulation outlet pipe is connected to the hot water outlet pipe via an external circulation pump. This utility model uses multiple sets of refrigerant heat exchange systems connected in parallel through the refrigerant circuit of the large heat exchanger. Simultaneous operation allows for the absorption of heat from the air through refrigerant circulation, resulting in efficient heat exchange with the water circuit and improving the efficiency of cooling or heating functions.

The utility model relates to the field of integrated battery pack discloses a kind of lithium iron phosphate battery energy storage integrated battery pack, including several partition plates, several The partition plate is fixed in the inside bottom surface of battery box, the inside of battery box is provided with several lithium battery bodies, the lithium battery body sliding fit between battery box and partition plate, the top surface of the partition plate is equipped with rotating groove, the inside of rotating groove is provided with bearing, the inside of bearing inner ring is fixed with rotating column, the top of rotating column is fixed with rotating plate, the top surface of rotating plate is fixed with knob, the both sides of lithium battery body are respectively fixed with limit slot. The cooperation of clamping strip and clamping groove realizes the accurate positioning of lithium battery body horizontal position, and the rotating plate of rotating into limit slot is used to limit longitudinal displacement, and the double limiting mechanism effectively prevents any shaking of lithium battery body in battery box, significantly improves the structural stability after installation.

According to the low-temperature refrigerator provided by the utility model, a normal-temperature and normal-pressure gas working medium is compressed to a high-pressure state by the compressor, the compressed gas flows through the water cooler to be pre-cooled, and the pre-cooled gas enters the high-pressure surge tank, is subjected to heat exchange by the dividing wall type cold accumulation heat exchanger and then enters the expansion machine to be subjected to expansion refrigeration; the expanded refrigeration working medium is guided into the cold energy heat exchanger to absorb and utilize cold energy, and the gas working medium discharged from the cold energy heat exchanger absorbs heat and is heated through the dividing wall type cold accumulation heat exchanger and then returns to the compressor through the low-pressure surge tank, so that the whole refrigeration cycle is completed. The dividing wall type cold accumulation heat exchanger is adopted, effective heat exchange of cold and hot fluid in the intermittent flowing state is achieved, the working mode of the dividing wall type cold accumulation heat exchanger is matched with the working mode of the pulse pipe (or piston) expansion machine, the refrigerating efficiency of the system in the intermittent flowing mode is optimized, and therefore the requirement for a refrigerating system with medium-scale refrigerating capacity is met.