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154results about How to "Does not consume resources" patented technology

Application of tungsten-based catalyst in lignin catalytic hydrogenation for producing aromatic compound

The invention relates to hydrocracking of lignin, and specifically relates to a method for applying a tungsten-based catalyst to catalyze lignin hydrocracking for producing an aromatic compound. The catalyst comprises a main active component of non-zero-valent tungsten, and a second metal component of a small amount of one or more transition metals selected from zero-valent nickel, cobalt, ruthenium, iridium, palladium, platinum, iron, and copper. According to the method, raw materials such as lignin, biomass hydrolysis residue, lignosulfonate, and alkaline lignin are subject to catalytic hydrogenation under a hydrothermal condition with a temperature of 120 to 450 DEG C and a hydrogen pressure of 1 to 20MPa; the raw materials are cracked into C6-C9 phenolic compounds with high selectivity. A maximal phenol yield reaches 55.6%. Compared to existing technologies, according to the invention, renewable natural biomasses are adopted as raw materials, such that the raw materials are cheap, and have wide sources; inorganic acid and alkali are not required, such the production of a large amount of alkaline solution in traditional lignin catalysis is avoided; the tungsten-based catalyst is cheap; the reaction process is green, and has atom economical characteristics.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Industrial flue gas purification, desulfurization and denitrification integrated device and working method thereof

The invention discloses an industrial flue gas purification, desulfurization and denitrification integrated device and a working method thereof. A section of pretreatment flue is additionally arranged on a flue in front of an absorption tower, and the outlet of the pretreatment flue is connected to the inlet flue of the absorption tower in a downward gradient mode; an ozone spraying device and a pre-spraying device are arranged in the pretreatment flue from the inlet in turn; and the ozone spraying device is connected with an ozone generator through a gas transmission pipeline and converts SO2 into SO3 sulfide which is freely soluble in water, the pre-spraying device absorbs SO3 which is freely soluble in water and converts the SO3 into H2SO4, namely sulfuric acid, and flue gas is cooled simultaneously, so that the aim of removing nitrogen oxide and sulfur dioxide is fulfilled. The device can efficiently remove the nitrogen oxide, has an obvious effect of removing particulate matters such as the sulfur dioxide, dust and the like, and is desulfurization and denitrification equipment with a wide application prospect.
Owner:山东中玻节能环保发展有限公司

Preparation method for manufacturing building board by utilizing mine tailing residue

The invention discloses a preparation method for manufacturing building board by utilizing mine tailing residue. The following raw materials are used by weight ratio: 30-75% of tailing residue and 25-70% of additive; brine with the weight percent concentration of 25-28% is utilized to stir the material into paste, the paste is placed into a mould to be rolled and moulded, and the tailing residue is one or more than one of gold slag, copper slag and ferrum slag. The invention utilizes tailing residue to produce building board, massive tailing residue is consumed, pollution harm of tailing discharge is solved, the produced building board has low cost and high strength, tailing residue can be made into various building boards by utilizing the technology, and various building section bars, stone pillar, brick and lattice prism used for historic building restoration as well as modern city sculpture, roman column pendant, external decorative wall, leisure chair, rail and sidewalk lattice brick can be cast.
Owner:王琦 +3

Method and device for switching operating system

The invention relates to the technical field of the switching of an operating system, and in particular to a method and a device for switching an operating system, which is used for classifying an independent storage area for each operating system in a terminal buffering area; storing an image file of the original operating system to the corresponding storage area when the original operating system is switched to a target operating system; acquiring an image file, stored in the corresponding storage area, of the target operating system; and starting the target operating system according to the image file of the target operating system. By utilizing the method and the device provided by the embodiment of the invention, when the system is switched, different processes of the current operating system are processed into the image file to be cached, and when the operating system is returned, the image file of the operating system can be directly acquired, and the operating system can be started. Thus, different operating systems can be rapidly switched and started.
Owner:LENOVO (BEIJING) LTD

Split-screen displaying method and device

The invention discloses a split-screen displaying method and device. The method includes the steps of setting a touch area on a touch screen of an image display device, and presetting touch events used for controlling the touch screen, such as screen splitting, screen combining and single screen operating; judging whether the touch events are monitored in the touch area; if yes, according to the types of the touch events, splitting the original screen of the touch screen into a first screen and a second screen, or combining the first screen and the second screen into the original screen, or and displaying images separately on the first screen and the second screen. The split-screen displaying method and device has the advantages that the touch screen of a device is split into two independent display windows for independent task operations, operating is easy, touch screen resources are made full use, and user experience is improved.
Owner:EVOC INTELLIGENT TECH

Method and system for identifying picture characters and typesetting and displaying picture characteristics according to original style by mobile terminal

The invention discloses a method and system for identifying picture characters and typesetting and displaying the picture characteristics according to the original style by a mobile terminal. The method comprises the steps of acquiring a source picture with character information to be extracted from the mobile terminal, then sending the source picture to an identification server for character identification, and extracting the character information in the source picture, wherein the mobile terminal is not required to be installed with a large character identification library and only shoots and uploads a picture to the identification server; in the character identification process, resources of a mobile phone terminal cannot be consumed, and the operation is finished in the server; after identification, the mobile terminal displays the characters according to the acquired character information, the attribute information of the characters and the position information of the characters, and retains the original style of the characters in the picture to typeset the acquired characters; furthermore, a user can further modify the displayed characters, so that the user can make a design on the basis of the original style, and the method is convenient and simple.
Owner:陈佩珊

Magnesium lightweight synthetic fire proof floor plate and production process

The invention relates to a material for building a movable house, in particular to a magnesium light synthesis flame retardant floor plate and a process for preparing the same, wherein magnesia, magnesium chloride, gypsum powder, saw dust, phosphoric acid, oxalic acid, tri-sodium, triethanolamine, resin glue and water are mixed according to the weight ratio of 20Kg:15Kg:4Kg:10Kg:2Kg:0.3Kg:0.2Kg:0.4Kg:0.1Kg:1.5Kg:15Kg, and made to be the magnesium light synthesis flame retardant floor plate with the specification of 1530mmx75mmx38mm by taking two bamboo bars as ribs. The invention has the advantages of reducing the consumption of timber source and eliminating the risk of fire accident, along with little noise, cleanness and sanitation.
Owner:张文枝

Water-soluble quenching agent and preparation method thereof

InactiveCN101660028AOvercome the high priceOvercoming high temperature cooling rate is difficult to reduceQuenching agentsQuenchingWater soluble
The invention belongs to the technical field of thermal treatment quenching and cooling, and provides a water-soluble quenching agent. The water-soluble quenching agent is water solution containing starch and sodium hydroxide, wherein the content of the starch is 5-25g / L, and the mass ratio of the sodium hydroxide to the starch is (0.1-12):1. When the mass ratio of the sodium hydroxide to the starch is more than 0.5:1, sodium chloride can be used for replacing part of sodium hydroxide to form the water solution consisting of the starch, the sodium hydroxide and the sodium chloride. The water-soluble quenching agent is mixed water solution containing organic matters and inorganic matters, and through the change of the concentration, the cooling speed can be adjusted in a very wide range, and the cooling property with higher cooling speed than that of water and lower cooling speed than that of oil can be obtained. The invention overcomes the defects that the oil has high price, easy to combust and seriously pollutes the environment as well as the high-temperature cooling speed of the water solution of the inorganic matters is difficult to reduce.
Owner:洛阳森韵热工设备有限公司

Method for detecting failure nodes of wireless sensor network

The invention provides a mechanism for detecting failure nodes of a wireless sensor network based on high reliability, which is used for detecting the failure nodes in the wireless sensor network and finding out the types of the failures, wherein the failures include the Byzantine failure, namely uncertain failure with various reasons. The mechanism is characterized by sending a detection data packet to nodes to be detected, using a threshold-based failure node detection algorithm for the nodes to be detected, reporting a failure and requiring further processing of the failure after the failure is detected, and continuing detecting the next node if no failure is detected, thus ensuring that all the failures are detected, wherein the detection data packet is processed by data mining and data fusion technologies. Meanwhile, a failure detection priority is set so as to ensure that the detection priority can be given to the fatal failures.
Owner:NANJING UNIV OF POSTS & TELECOMM

Server multithread parallel data processing method and load balancing method

The invention provides a server multithread parallel data processing method which comprises the following steps: step 1, when server threads are started, starting one data receiving thread, one data distribution thread and one data processing thread pool containing multiple data processing threads, meanwhile opening a dynamic storage region used for storing the received client data, and dynamically managing the storage region according to an FIFO (First In First Out) mode; step 2, enabling the data receiving thread to intercept and receive data packets transmitted by a client by virtue of a socket, directly putting the data packet into the data storage region and then immediately returning to continue to intercept and receive client data; step 3, polling the dynamic storage region by virtue of the data distribution thread.
Owner:南京汇承科技有限公司

Method and device for realizing row lock of database

The invention discloses a method for realizing a row lock of a database in order to reduce system overhead. For example, the method can include the first step of responding to a transaction request, received into the database, of a data row and judging whether the row lock occupied by the data row exists according to the corresponding relation between the data row recorded in a row lock recording region and the row lock occupied by the data row, the second step of obtaining an idle row lock if the row lock occupied by the data row does not exist, and enabling the idle row lock to be the row lock occupied by the data row according to the corresponding relation between the data row recorded in the row lock recording region and the idle row lock, the third step of obtaining the row lock occupied by the data row according to the corresponding relation if the row lock occupied by the data row exists, the fourth step of returning the row lock occupied by the data row, and the fifth step of responding to and judging whether transactions of the data row are completely executed and canceling the corresponding relation between the data row recorded in the row lock recording region and the row lock to enable the data row to cancel occupation on the row lock. In addition, the invention further discloses a device for realizing the row lock of the database.
Owner:BEIJING SOHU NEW MEDIA INFORMATION TECH

Task scheduling method for wireless sensor network node

The invention relates to a task scheduling method for a wireless sensor network node. The method is realized based on a special operating system based on a wireless sensor network, wherein the special operating system comprises a binary code translation tool and an operating system kernel, the binary code translation tool runs on a base station node and provides a pretreatment for an application program; the operating system kernel runs on a sensor node and provides a series of kernel services; and the binary code translation tool and the operating system kernel act together to realize preemptive multi-task scheduling in the sensor node. The task scheduling method overcomes defects in the prior art, and realizes functions similar to the time-sharing, concurrent and preemptive multi-task scheduling functions of the traditional operating system. Each task has an independent time slice in the execution process, the information of the time slice is maintained by the operating system, the task does not need to concede the execution right, and the operating system can automatically suspend the task used by the time slice and switch to another task, thereby meeting the multi-task requirement of the application program.
Owner:NAT UNIV OF DEFENSE TECH

Method, device and system for message pushing

The invention belongs to the field of message pushing and provides a method, device and system for message pushing. The method comprises the steps that a pushing command and pushing content which are sent by a pushing server are received, wherein unique identification of a terminal needing message pushing is carried by the pushing command; when a terminal network corresponding to the unique identification of the terminal needing message pushing is online, the pushing content is sent to the terminal through TCP long connection established with the terminal. According to the method, device and system for message pushing, power consumption of the server can be reduced.
Owner:TCL CORPORATION

Method for catalyzing lignin to select depolymerization by using non-precious metals

The invention relates to a method for preparing an aromatic compound by catalyzing lignin to select depolymerization. The method comprises the following steps: taking an M(mpo)n complex (M=Fe, Co, n=3; M=Ni, n=2) as a catalyst, taking various beta-O-4 model molecules, organic lignin, lignosulfonate and alkali lignin as raw materials, and realizing high-selectivity catalytic cracking aryl-ether bands in a nitrogen atmosphere of 0.1 MPa at the temperature of 80 to 200 DEG C so as to obtain a phenolic compound. The conversion rate of the beta-O-4 model molecules reaches 100% at most, the productive rate of guaiacol reaches 95% at most, and the yield of styrene reaches 71% at most; when different lignins are used as raw materials for conversion, the yield of aromatic biological oil is 34% to 71%. The method has the characteristics of mild reaction conditions, no consumption of hydrogen source, high activity and selectivity, environment-friendly reaction process and the like.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Construction method for restoring surface structure and cracks on asphalt pavement

The invention discloses a construction method for restoring a surface structure and cracks on an asphalt pavement. The construction method comprises the following steps of: (1) uniformly scattering 0.2 kg / m<2> to 1.0 kg / m<2> of emulsified asphalt on the dried and clean asphalt pavement by an emulsified asphalt scattering truck, and turning to the step (2) after the emulsified asphalt is demulsified; (2) heating rolling wheels in advance so that the temperature on the surfaces of the rolling wheel is 120 to 180 DEG C, wherein the rolling speed is 2 to 6 km / h, and the surfaces of the rolling wheels are provided with steel stabs; and (3) after rolling is finished, and the surface temperature of the pavement is reduced to below 60 DEG C, recovering vehicle traffic. By the construction method, the cracks on the pavement surface are closed, and the surface structure depth is increased; and therefore, the antiskid performance of the pavement is improved. Compared with the conventional technology for adding a 'cover surface' and 'a micro surface place' of a layer of asphalt admixture on the conventional pavement, the construction method has the advantages that stone resources are not consumed; the construction speed is high; and the traffic interference is low.
Owner:SOUTH CHINA UNIV OF TECH

Load balancing method used in massive data multithread parallel processing

The invention discloses a load balancing method used in massive data multithread parallel processing. According to the method, a server processes received data by using a plurality of parallel data processing threads, and for each received new data packet, the server allocates the data processing thread according to the method which comprises the following steps of: judging whether the data processing threads in which the number C of the current to-be-processed data packets is equal to zero or the number n of processed data packets is equal to zero exist; if the data processing threads exist, the received new data packets are allocated to any one of the data processing threads; and if the data processing threads does not exist, the received new data packets are allocated to a data processing thread which has a highest relative idle rate. According to the method, reasonable data allocation for each data processing thread can be performed according to a relative idle rate, the capability of parallel processing and intensive calculation on massive data of a system can be obviously improved, the algorithm of the method is easy to implement and occupies a small quantity of resources.
Owner:HOHAI UNIV

Control method for correcting stepper motor and its related device

A control method for calibrating step motor connected to a controller and a load device includes outputting a control signal from controller to step motor according to a target displacement and a reference parameter, driving the load device, generating the second reference parameter according to the actual displacement, the first reference parameter, and the difference between actual and target displacements, and updating the first reference parameter.
Owner:TIAN HLDG LLC

Method for manufacturing non-glued particle board made of agricultural product residua and used as structural material

The invention discloses a method for manufacturing a non-glued particle board made of agricultural product residua and used as a structural material. The non-glued particle board used as the structural material is made of the agricultural product residua which are machined to be crushed materials and dried to be with certain moisture content, and the crushed materials are mat-formed to be plate blank and pre-compacted and sent into a hot press for hot-press molding. After the hot pressing is finished, the pressure of a pressing plate is kept, and the pressing plate is unloaded after being cooled. The non-glued particle board used as the structural material has the advantages of being high in mechanical strength, good in water tolerance, free of free formaldehyde releasing, capable of being used in a room as a structural sheet material for furniture and interior trim, simple in manufacturing method, and capable of being produced without big change of an ordinary production line of shaving boards.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Kettle-based method for extraction and statistics of data on large data platform based on kettle

The invention discloses a kettle-based method for extraction and statistics of data on a large data platform. The method comprises the steps that source codes of kettle are transformed, so that situations of each data extraction task can be obtained and recorded in a hbase table, wherein the hbase table is called as a historical situation table and records data size situations of all data tables; through a sqoop task, timed incremental extraction is conducted to relation-type databases every day, the data size extracted for one time is a data increment of a day; and the everyday data increments in each data table are recoded and written into the hbase table, so that the data size situations can be inquired in a combined manner according to the tables and time. According to the invention, the increment situations are recorded during the data extraction, so additional time does not need to be spent, and nearly no computing and network resources need to be consumed.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Method for overlapped transmitting number by session initial protocol

ActiveCN1984199AWill not cause forked routingSpeed ​​up connection timeInterconnection arrangementsData switching networksTelecommunicationsSoftware switch
The call establishing method comprises: SIP entity sends at least a part of called number to the software switch by using INVITE message in order to send it to the called network; when confirming the called number is not a full number according to the INVITE message, the software switch sends the call progress answering for indicating the establishment of initial session to the SIP entity; according to the call progress answering, the SIP entity sends the received next called number to the called software by using INFO message, and then sends to the called network.
Owner:HUAWEI TECH CO LTD

Nutrient jelly containing microalgae DHA (Docosahexaenoic Acid) and preparation method thereof

ActiveCN102423021AImprove qualityStrong sustainable developmentFood preparationFlavorDocosahexaenoic acid
The invention discloses a nutrient jelly containing microalgae DHA (Docosahexaenoic Acid) and a preparation method thereof. The nutrient jelly comprises the following components of 0.002-0.0105 percent of the microalgae DHA, 0.20-0.50 percent of hydrophilic colloid, 10.0-15.0 percent of sweetening agent, 0.25-0.50 percent of acidity regulator, 0.02-0.05 percent of preservative, 0.005-0.012 percent of antioxidant and 0.1-0.3 percent of flavor composition. The preparation method disclosed by the invention comprises the following steps of: uniformly mixing the sweetening agent, the hydrophilic colloid and the preservative, then adding the mixer in water and uniformly stirring; heating the mixer until the hydrophilic colloid is completely dissolved; reducing the temperature to be 75-85DEG C; adding microalgae DHA powder, the antioxidant and the acidity regulator; adding to a certain weight with water; filling, sealing, sterilizing, fishing, leaching and cooling the mixer; and after the mixer is qualified by the inspection, obtaining the nutrient jelly containing the microalgae DHA. The nutrient jelly obtained by improving the formula and the preparation process retains original mouthfeeling within the guarantee period without adverse off flavor; and the microalgae DHA has favorable stability within the guarantee period of the jelly without influencing the mouthfeeling and the flavor of the jelly.
Owner:GUANGDONG RUNKE BIOLOGICAL ENG

Preparation method and application of biomass ultraviolet absorbent

The invention discloses a preparation method and an application of a biomass ultraviolet absorbent. The biomass ultraviolet absorbent comprises, by weight, 3-6 parts of biomass active extracting solution, 1.5-3 parts of dry biomass particles, 0.75-1.5 parts of natural mineral particles, 1-2 parts of biomass film-forming agents and 80-160 parts of solvents. The biomass ultraviolet absorbent is prepared from natural bio-based or raw mineral materials, achieves excellent anti-ultraviolet effects by the aid of synergistic effects of wet invasive plant active extracting solution, the dry biomass particles and the natural mineral particles, is environmentally friendly, degradable and non-irritating to organisms, can be widely applied to textiles, paper products, plastics, cosmetics and the like,and further has a certain far infrared release function.
Owner:无锡德冠生物科技有限公司

Quick response method and device of vehicle-mounted display system based on operating system

The invention relates to a quick response method and device of a vehicle-mounted display system based on an operating system. The vehicle-mounted display system comprises a liquid crystal instrument,and the method comprises the following steps that S1, a first trigger signal is received, the vehicle-mounted display system pre-starts an operating system and is connected with a power supply of theliquid crystal instrument, and pre-starting of the operating system only comprises running of the operation system kernel and loading of files; and S2, a second trigger signal is received, and the liquid crystal instrument is controlled to display a corresponding graphic picture by the vehicle-mounted display system according to the second trigger signal. According to the method, the operating system is pre-started in advance according to the first trigger signal, the kernel is operated, and preparation is made for quickly displaying the driving information. And when the second trigger signalis received, the liquid crystal instrument can obtain a quick response without waiting, so that the satisfaction degree of a user is greatly improved.
Owner:DONGFENG AUTOMOBILE ELECTRONICS

Method for fuel methanol of igniting type engine

The method of burning methanol in an ignition type engine includes the following steps: 1. heating methanol reforming catalyst inside the methanol reformer with electrothermal PTC element and maintaining the temperature at 200-300 deg.c; 2. jetting methanol into the reformer for reaction to produce reformed methanol gas containing hydrogen and CO; 3. mixing the reformed methanol gas and air inside the inlet manifold to form mixed inflammable gas; 4. starting the engine to burn the mixed inflammable gas; and 5. jetting more methanol to form mixed inflammable gas essential for the engine in raised load, so as to make the engine burn mixed gas of nitrogen, CO, methanol and air. The present invention improves the cold start performance of engine burning methanol, eliminates formaldehyde exhaust pollution, raises the burning efficiency, lowers the furl consumption, reduces exhaust pollution and saves petroleum resource.
Owner:郑国璋

Method for implementing microphone detection on web page

ActiveCN102110130AFast detection processThe detection process is fully automaticData switching networksSpecial data processing applicationsMicrophoneWeb technology
The invention belongs to the technical field of networks, and particularly relates to a method for implementing microphone detection on a web page. The method comprises the following steps of: accessing the web page by a user, automatically loading a Flash plug-in, performing local microphone detection through the Flash plug-in by calling a microphone operating application program interface (API), and then returning the detection result to the web page so that the web page can acquire the detection result of the microphone. The method can be used for directly detecting the local microphone on the web page, and has strong timeliness and accuracy.
Owner:南通江海港建设工程有限公司

Dual-buffer mechanism based real-time system multi-task data sharing method

The invention discloses a dual-buffer mechanism based real-time system multi-task data sharing method. The method includes a dual-buffer structure initialization operation, a dual-buffer write-in operation, and a dual-buffer reading operation. The dual-buffer structure initialization operation performs initialization motion such as storage allocation and initial value setting on a dual-buffer structure. The dual-buffer reading operation is called by a reading task to perform data reading on the dual-buffer structure. The dual-buffer write-in operation is called by a write-in task to perform data write-in on the dual-buffer structure. Through the dual-buffer mechanism, an original system scheduling cannot be affected, the refresh rate of the written data can be ensured, the relative uniformity, the promptness and the non-repeatability of read data can be ensured.
Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST

Carbon-nanometer-tube-carried-Ru-based catalyst and preparing method and application thereof

The invention relates to a carbon-nanometer-tube catalyst, in particular to a carbon-nanometer-tube-carried-Ru-based catalyst and a preparing method and application thereof.The catalyst comprises an active component, an assistant and a carrier, wherein the carrier is carbon nanometer tubes, the active component is Ru, the assistant is one or several of metal and metallic oxide, and the molar ratio of the assistant metal element to the active component is (0-0.5):1; the weight percentage of the active component in the catalyst is 1%-10%; the metal is W or Mo or Re or Ir or La.The carbon-nanometer-tube-carried-Ru-based catalyst is good in selectivity and high in activity.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1

Method and device for automatically diffusing resources

The invention discloses a method and a device for automatically diffusing resources, belonging to the field of network communication. The method comprises the following steps: an original point-to-point P2P client side downloads network resources from a network resource server, acquires the configured diffusing P2P client side from a P2P seed server and pushes the network resources to the diffusing P2P client side automatically. The device comprises the original P2P client side and the diffusing P2P client side. The proposal provided by the implementation of the invention acquires the network resources from the network resource server by the original P2P client side firstly, and then automatically diffuses the network resources to the P2P client side in a P2P system, thus guaranteeing that multiple P2P client sides provide resources and do not consume the resources of the network resource server when other P2P client side acquires the network resources by the P2P transmission technology, reducing the cost of the network resource server, improving downloading speed and further improving the use experience of a user.
Owner:TENCENT TECH (SHENZHEN) CO LTD

OFDM signal transmitting power division method

The invention aims at providing an OFDM signal transmitting power division method which is capable of following real-time change of a time-varying channel and low in power consumption. The provided OFDM signal transmitting power division method is divided in to a preset stage and a real-time stage. In the preset stage, Pbit-H<2>a correspondence under optimal power division is obtained by estimation. In the real-time stage, the Pbit-H<2>a correspondence is utilized, corresponding Pbit is rapidly obtained according to R required by system and instant H<2>a, further total initial transmitting power is determined, initial power is allocated to each sub channel according to ratio of square of gain of each sub channel, and greedy algorithm is adopted on the basis.
Owner:SUN YAT SEN UNIV

Piezoelectric drive type miniature thermoacoustic refrigerator

The invention discloses a piezoelectric drive type miniature thermoacoustic refrigerator. The piezoelectric drive type miniature thermoacoustic refrigerator is mainly composed of a piezoelectric buzzer, resonator tubes, a regenerator and heat exchangers. The piezoelectric buzzer, the hot-end resonator tube and the hot-end heat exchanger are sequentially connected; the regenerator is located between the hot-end heat exchanger and the cold-end heat exchanger; the rear portion of the cold-end heat exchanger is connected with the resonator tube with one open end and one closed end, and therefore the thermoacoustic refrigerator forms a closed loop and standing waves are generated in the loop. According to the related knowledge of the thermoacoustic theory, a pump heating effect is generated in the regenerator through the standing waves, so that a temperature difference is generated between the two ends of the regenerator, and the refrigeration effect is achieved through heat exchange between the cold-end heat exchanger and the outside as well as between the hot-end heat exchanger and the outside. The refrigerator is simple in structure, free of any moving component, miniaturized, environmentally friendly, and suitable for heat dissipation of electronic elements.
Owner:SOUTHEAST UNIV
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