140results about How to "Shorten the running cycle" patented technology

A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-1) a hydrophobic silica and a hydrophilic silica. A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-2) a hydrophobic silica, wherein the hydrophobic silica (B-2) is thermally treated together with the organopolysiloxane (A). The organopolysiloxane (A) is preferably represented by the formula: W3-a(R1a)Si(R2)O-(Si(R2)O)n-Si(R1a)W3-a [alpha] (wherein W represents a hydroxyl group or a hydrolyzable group; each of R1 and R independently represents an unsubstituted or substituted monovalent hydrocarbon group having 1 to 12 carbon atoms, provided that the hydrocarbon groups R1 as well as the hydrocarbon groups R may be identical with or different from each other; n is an integer of 5 or greater; and a is 0, 1 or 2). When, in the formula [alpha], W represents a hydroxyl group and a is 2, the curable composition preferably comprises, in addition to the components (A) and either (B-1) or (B-2), (C) an organosilane represented by the formula: R1bSiX4-b [I] (wherein R1 represents an unsubstituted or substituted monovalent hydrocarbon group having 1 to 8 carbon atoms; X represents a hydrolyzable group; and b is 0 or 1), or a partial hydrolyzate of the organosilane. Thus, a curable composition, especially a curable paint composition and an antifouling paint composition, and an antifouling coating film of the following characteristics can be provided. The curable composition, in particular when used as a coating material or a paint, is excellent in sprayability and enables forming a thick coating film by one-time application. The curable composition enables shortening the operating period for coating, and a coating film of uniform thickness can be obtained by the application thereof. The obtained coating film is excellent in film strength and film hardness and, when used for antifouling purposes, exerts excellent antifouling capability for a prolonged period of time. Further, the curable composition ensures excellent storage stability before application thereof.

The invention relates to a multi-operating mode energy-saving controlled combined type thermostatic and humidistatic air conditioning unit with a thermometal compound box body structure special for nuclear power stations. The air conditioning unit comprises a control system and a box body structure, wherein a primary-efficiency filter, a medium-efficiency filter, a surface cooler, a heater, a humidifier and a blow-off device are sequentially arranged in the box body; the front side of the primary-efficiency filter is provided with a fresh air and return air mixing section, and inlets of fresh air and return air are respectively provided with a fresh air proportioning valve and a return air proportioning valve; the control system adopts a programmable logic controller (PLC) and adopts air conditioning multi-operating mode zone control to realize the energy-saving operation of the unit; the surface cooler adopts a large temperature difference cold water heat exchanging technology and can save the investment and operation expenses of a water system; and the box body adopts a double-layer compound structure and an anti-shock device to meet the special requirements on the nuclear power stations. The invention has the characteristics of high efficiency, energy saving, good tightness, strong anti-shock capacity, safety, reliability, long service life, and the like.

A process for treating sewage by integrating sequential active sludge method with membrane-bioreactor features that the membrane assembly is put in bioreacting pool, its outlet is respectively connected to air inlet pipe and water outlet pipe via two control valves, the whole system sequentially passes through flow-in, reaction, discharge and idle steps, that is, anaerobic, aerobic and anoxic states, and said membrane assembly plays the roles of aerating unit in reaction step or separator in discharge step. Its advantages are simple structure and high effect.

The invention provides an oil soluble molybdenum-based precursor of a catalyst, a preparation method and application thereof, relating to the technical field of heavy oil hydrocracking catalysts and solving the problems of low catalytic hydrogenation activity and high cost of the existing catalysts. The preparation method for the precursor comprises the steps of (1) mixing a molybdenum source with water, reacting for 30-240 minutes at 70-90DEG C, and adding inorganic acid; (2) adding polycarbon alcohol into P2S5 in 5-15 minutes at 50-80DEG C, and reacting for 1-3 hours at 70-100DEG C; (3) adding the product of step (2) into the product of step (1), adding resin, and reacting for 4-8 hours at 70-110DEG C; (4) separating oil phase from the product of step (3) so as to obtain the target product. The precursor can form MoS2 active components through self sulfurization and in situ decomposition, is used in slurry reactor hydrocracking of poor heavy oil with high content of metal, carbon residue and sulfur, and can lower the yield of coke and keep a device to run for a long period.

A high-temperature and aerobic composting method for solid wastes which adopts a vertical ventilation device relates to a high-temperature and aerobic composting method for the solid wastes. The composting method aims at solving the problems that in the aerobic fermentation process, the conventional bottom ventilation method causes obvious uneven fermentation at the upper part and the lower part of a stacking body in a fermentation device, thus quality stability and uniformity of the fermented product are affected. In the composting method, middle air distribution pipes are fixed in a fermentation tank arranged at the lower side of an inverted ventilating slot; both the bottom part and the middle part of the fermentation tank adopt intermittent ventilation type, the ventilation time is 5-30 minutes, intermittent time is 15-120 minutes and ventilation rate is 0.03-2m<3> / (min m<3> mixing materials). The composting method increases the contact area between air and materials; air direction forms a reverse rotational flow, which increases residence time of fresh air in the fermentation device, thus improving the mass transfer efficiency, and the operational cycle of a single fermentation is shortened by over 1 / 4.

The invention relates to water deep treatment technology of heterogeneous catalytic ozonation depollution. With the combination of catalytic ozonation depollution technology with membrane filtration technology, a novel, high-efficient, and economical catalytic ozonation water deep treatment technology is provided, which combines the advantages of the two technologies, overcomes their disadvantages, effectively improves the ozone utilization rate and the ozone oxidation capability, reduces some toxic and harmful substances generated due to incomplete oxidation, alleviates the problem of ceramic membrane contamination, and prolongs the system operation period. An experiment device mainly comprises three parts: an ozone generation device, a ceramic membrane device, and a computer data acquisition and analysis system; an ozone outlet of the ozone generation device is connected with a water inlet valve of the ceramic membrane assembly through a silicone flexible pipe to realize the coupling of the two system. The method of the invention can improve the purifying effect of routine water treatment technology, and provides novel, high-efficient and cheap water deep treatment technology for enhanced removal of low-concentration high-toxicity refractory organic pollutants in water.

The invention discloses an oil solubility compound-type suspended bed hydrocracking catalyst, wherein the catalyst is prepared by the following steps: 1) enabling compounds of metal elements in the VIB family, the VIIB family or the VIII family in a periodic table of elements as metal sources with alkali metal sulfide or alkali metal hydrosulfide according to the mole ratio of (0.5 to 1)-(2 to 1), thereby obtaining a metal element compound at a reduction state; 2) adding the metal element compound at the reduction state and amine substances into a reaction medium according to the mole ratio of (1:0.6)-(1 to 2), and meanwhile dropwise adding carbon disulfide with the corresponding quantity into the reaction medium according to the mole ratio of (1 to 1)-(2 to1) with the metal element compound at the reduction state, warming to react at the reaction temperature of 30-110 DEG C for 2-10 hours; 3) filtering and washing the product obtained by the step 2) so as to obtain the oil solubility compound-type suspended bed hydrocracking catalyst. The catalyst prepared by the invention can inhibit the coke yield, and improve the light oil yield.

A control apparatus for controlling a starter used to start an engine mounted on a vehicle, the starter generating a torque and having a first gear mechanically engaged with a second gear of the engine to start the engine. The control apparatus includes a trigger circuit adapted to output a trigger signal in response to a start request; a detection circuit adapted to detect an electrical state and a mechanical state of the starter while the starter is powered on; and a controller adapted to control power on and off of the starter. The controller powers on the starter in response to the trigger signal outputted by the trigger circuit, and powers off the starter when the controller detects that a predetermined condition is satisfied based on the state of the starter.

The invention provides a catalytic oxidation-compound flocculation integrated treatment process which aims to solve the problem that organic comprehensive waste water is difficult to treat because the organic comprehensive waste water contains organic substances difficult to biologically degrade. The treatment process integrates catalytic oxidation, Fenton oxidation, compound flocculation, high-efficiency precipitation and other technical advantages; a high-efficiency catalyst is used to improve the treatment efficiency or biodegradability; and a compound flocculant is used as the core to simplify the treatment process and ensure the stable treatment effect, thereby achieving the catalytic oxidation-compound flocculation integration. The invention has the characteristics of concise technical line, high treatment efficiency and simple operation process.

The invention relates to an energy-saving recycling treatment disposal system and an energy-saving recycling treatment disposal process for an organic solid waste. The energy-saving recycling treatment disposal process mainly comprises a continuous sludge pyrohydrolysis anaerobic digestion section, a sludge dehydration heat drying section and a dry sludge, domestic garbage and biogas mixing incineration section. Due to the energy-saving recycling treatment disposal system and process disclosed by the invention, the innocent treatment of kitchen garbage, municipal sludge and the domestic garbage can be thoroughly realized by combining a high-temperature sludge anaerobic digestion technology with the high-organic matter characteristic of the kitchen garbage by utilizing respective characteristics of three solid wastes, applying a solid waste high-temperature incineration technology of mixed biogas, adopting a reasonable energy resource integrated means and applying an advanced high-temperature continuous pyrohydrolysis pretreatment technology. In addition, the energy-saving recycling treatment disposal process disclosed by the invention can also be used for realizing the recycling of the three solid wastes, improving the energy resource utilization efficiency of an integrated system, effectively reducing the input of external energy resources and reducing the operation cost. The energy-saving recycling treatment disposal process disclosed by the invention is capable of realizing the continuous operation of solid waste treatment, simple and reliable, simple in equipment, small in initial investment and has good environmental and economic benefits.

The invention discloses a three-section simulated moving bed chromatography device comprising N chromatographic columns, two eluent transfer pumps, a feeding liquid transfer pump, 6N automatic control valves, a PLC (programmable logic controller) or SCM (single-chip microcomputer) automatic control system, multi-passes, pipelines and liquid storage tanks, wherein N is not less than 3 and is not more than 24. The mobile phase inlet of each chromatographic column is divided into four paths by the multi-pass Ii; eluents P and D, raw material liquid F and circulating liquid of the previous chromatographic column are introduced and controlled by automatic control valves Pi, Di, Fi and Ti-1; the first chromatographic column is connected with the Nth chromatographic column through the automatic control valve TN from end to end; the mobile phase outlet of each chromatographic column is divided into three paths by the multi-pass Oi; and raffinate R, extract E and circulating liquid of the current chromatographic column are output and controlled by automatic control valves Ri, Ei and Ti so that a three-section simulated moving bed chromatography operation mode with a separate I section or a three-section simulated moving bed chromatography operation mode with back flow between sections I and II is formed. The device has the advantages of simple structure, reliability, flexible and convenient use, low cost, stable operation and high separation efficiency.

The invention relates to a high-real-time concurrent testing method based on a multi-task mechanism of VxWorks system. The method comprises the following achieving steps that test tasks are planed according to a test case, a task attribute is configured for each test task, the task attribute comprises a task name, a task period, a task priority, starting time and finishing time; the tasks and semaphores corresponding to the tasks are established; a timer is registered for multi-task dispatching, and a task information table is established. According to the high-real-time concurrent testing method based on the multi-task mechanism of the VxWorks system, calculation, logic processing and interaction with the tested system can be completed in determined time, and the multiple concurrent test tasks can be completed in the same time period, so that high-real-time concurrent test requirement of embedded software is met.

The invention provides a testing environment automatic processing method, and a method and device for realizing system testing automation. Remote procedure call services are deployed on machines of upstream modules and downstream modules related in a testing environment in advance, in the system testing process, when a test case needs to operate the testing environment, a corresponding operation environment script is generated, the remote procedure call services are called to control the machine operation environment script in the testing environment, and operation results are captured. According to the condition that the system testing environment relies on a plurality of machines, automation of manual environment initialization and repairing and other environment operations is realized through the remote procedure call services, labor cost is effectively saved, and the case operation cycle is shortened.

There are intended to provide a semiconductor memory device capable of data access with higher speed and improvement of data transfer rate by shortening refresh operation cycle by stable low-current-consumption operation, and a control method of such a semiconductor memory device. In advance to the refresh operation mode signal M(I), control signal SW is outputted. Consequently, the switching sections select stored address bus Ladd from each storing section and stored-redundancy-judgment-result bus LJ and output address information subject to refresh operation to a word-line-driving-system circuit. After the address information from each storing section is outputted, a control signal LCH is outputted. As a result, an address switching section selects refresh address bys Add(I) subject to next refresh operation and each storing section stores address Add(I) fetched in an internal address bus IAdd and its redundancy judgment result RJ(I).

The invention discloses a servo-motor acceleration-deceleration control method for a servo pressure machine, comprising the following steps of: constructing an acceleration function of a servo motor at an acceleration stage; establishing a speed expression of the servo motor at the acceleration stage; establishing a rotary displacement expression of the servo motor at the acceleration stage; constructing an acceleration function of the servo motor at a deceleration stage; establishing a speed expression of the servo motor at the deceleration stage; establishing a rotary displacement expression of the servo motor at the deceleration stage; and determining total acceleration time and total deceleration time. According to the servo-motor acceleration-deceleration control method, two triangular functions with different periods are adopted as acceleration-deceleration constructed functions of the servo motor, so that the change of the speed, the acceleration and the accelerated acceleration is continuous, the soft shock of the acceleration-deceleration process on the machine body is avoided, the operation stability of the pressure machine is improved and the softness of acceleration-deceleration control of the pressure machine is higher; and by full utilization of the constant and maximum output torque of the server motor under the rated rotating speed, the operation period of the servo pressure machine can be shortened and the takt time of stamping production is improved.

The invention relates to hydraulic machine motion control, and provides a control board card and a controller. The control board card has low cost, high reliability and simplicity in use and maintenance, and is combined with an industrial personal computer to form a control system, and the controller is directly matched with an actuator through signals. The technical scheme is as follows: the special PCI (Peripheral Component Interconnect)-based hydraulic machine motion controller comprises an analog input module, an analog output module, a TMS320F2812 digital signal processing module, an EQ2C8Q208 logic circuit conversion module, a PCI9054 bus data communication module, a switch value input circuit module and a switch value output circuit module, wherein the Q2C8Q208 logic conversion circuit module is connected with the modules. The controller provided by the invention is mainly used in the motion control of a hydraulic machine.

The invention discloses an FPGA-based highly-integrated high-precision control system for a micro flywheel, which mainly comprises a direct current power supply, a digital controller, an integrated three-phase bridge drive chip, a permanent magnet brushless direct current motor, a direct current detecting device and a position detecting device. The system takes an FPGA chip which has high reliability and is operated in parallel as a controller, and realizes sequential logic functions of a digital calculating unit, PID control, phase conversion logic, PWM, RS232 serial port communication, rotating speed measurement and A / D sampling trigger of a current and the like on an FPGA through a VHDL language. Compared with other special integrated digital processors, the system has the advantages of programming flexibility, high program reliability and good real-time. Hardware circuits of the invention are highly integrated, which integrates a three-phase full-bridge inverter and a drive circuit thereof in the integrated three-phase bridge drive chip so as to realize highly-integrated high-precision steady-speed control of a brushless direct current motor used for the micro flywheel.

The invention discloses a rapid bus route design method based on station efficiency calculation, and belongs to the field of intelligent traffic. The method includes the steps of: building a bus network, extracting network flow distribution characteristics, establishing a node efficiency evaluation model, and designing a rapid bus route running route. According to the design method provided by the invention, a network based on bus routes is established, network node flow distribution characteristics are obtained according to bus passenger travel data, transmission efficiency of nodes are evaluated according to node flow distribution characteristics, aiming at minimization of passenger travel time, a rapid bus route formed by efficient nodes is designed, and network efficiency is improved. The design method establishes a network node transmission efficiency evaluation model based on a bus route network according to real city public transport travel data, realizes design of a rapid bus route with the flow distribution characteristics being guidance, and reduces stations of low efficiency in the route, thereby reducing travel time of passengers, and improving efficiency of bus operation.

The invention relates to a spent lubrication oil regeneration device, which comprises a first heater, a precipitator, a second heater, a solid-liquid separator, an electric dehydrator, the ultrasonic membrane separator, a third heater, a catalytic cracking reactor and a fractionating tower, which are connected in sequence. An ultrasonic part is disposed at the front of a filter membrane inside the ultrasonic membrane separator, the filter membrane in the ultrasonic membrane separator is a hollow fiber membrane resistant to 80-100 DEG C and resistant to oil corrosion, and average pore size of the filter membrane is 0.1-0.5 micrometers. Spent lubrication oil is separated by the ultrasonic membrane separator to obtain light oil and heavy oil, the light oil is discharged from an oil outlet and collected for use, the heavy oil is discharged from a concentrated oil outlet into the catalytic cracking reactor to generate light oil, base lubrication oil and non-hydrocarbon gases after reaction, and the light oil, the base lubrication oil and the non-hydrocarbon gases are separated and used respectively. The spent lubrication oil regeneration device is applicable to the field of recycle of spent lubrication oil.

The invention discloses a high-efficiency running method by using sequencing batch full-autotrophic denitration granular sludge and belongs to the field of treatment and regeneration of sewage and wastewater with the high ammonia nitrogen content. In a sequencing batch reactor, on the basis of the application of the started CANON granular sludge, the influence, caused by dissolved oxygen, on the running of the reactor is researched. The high-efficiency running method comprises the steps of, , and researching a method for enabling the reactor to run with the high efficiency under the conditions that the CANON granular sludge is taken as seed sludge, the dissolved oxygen which is necessary to reaction is supplied through aeration, and a certain dissolved oxygen gradient is controlled. The problem that the long-time influence, caused by the dissolved oxygen, on the running efficiency of the CANON granular sludge cannot be determined is solved; the small influence, caused by short-time or delay aeration, on the reaction is verified; a new concept is supplied to the engineering application of CANON in treatment of the wastewater with the high ammonia nitrogen content.

An apparatus for detecting the sealability of a lithium ion cell comprises a container which is filled with a detecting liquid, a clamp and a high-pressure-gas joint member. The clamp can carry a lithium ion cell to be detected and put it into said container. One end of the high-pressure-gas joint member is connected to an injecting hole of the lithium ion cell to be detected and the other end is connected to a high-pressure gas supply. The detecting apparatus also comprises an elevator which can move the lithium ion cell into and out the detecting liquid within the container.

The invention provides a system and a method for repairing polluted soil by pre-processing through ozone and enhancing micro-biological degradation; the polluted soil is polycyclic aromatic hydrocarbon polluted soil. The method provided by the invention comprises the following main repairing steps of: collecting and pre-processing a sample, preparing and uniformly mixing slurry, connecting to a repairing system, pre-processing through ozone, adding a biological surfactant and a liquid culture medium into a reaction container, and carrying out combination degradation and regular sampling and measuring till completing repairing. The system provided by the invention is simple to configure, convenient to operate and high in safety; aiming at the characteristics of being high in pollution degree of polycyclic aromatic hydrocarbon in soil, durable in pollution history, the micro-biological degradation combination technology is enhanced by adopting ozone pre-processing and biological surfactant solubilizing technologies; the limitation of the single technology is overcome; furthermore, the method provided by the invention is simple and convenient to operate, low in cost, short in operation period and good in eliminating effect; the eliminating rate of polycyclic aromatic hydrocarbon is above 93%; furthermore, secondary pollution cannot be generated; harm of polycyclic aromatic hydrocarbon polluted soil to human bodies and environments is greatly reduced; and a novel concept is provided for repairing soil.

The invention discloses a pressure swing adsorption gas separation method for recycling displacement waste gas and directly-discharged gas. According to the method, all or one part of the displacement waste gas flowing out from an adsorption tower is displaced by a pressure swing adsorption gas separation device, and is compressed and pressurized; and the waste gas returns back to be mixed with fresh raw gas and the mixed gas is used as raw gas of the pressure swing adsorption gas separation device. The method is applicable to a product mainly composed of adsorption phase components and the pressure swing adsorption gas separation device with a displacement operation step. According to the method which takes the displacement waste gas and the directly-discharged gas, which are pressurized and returned back to be mixed with the fresh raw gas, as the raw gas of the pressure swing adsorption gas separation device, other separation devices for separating and recycling the displacement waste gas and the directly-discharged gas do not need to be used, so that the recycling of the displacement waste gas and the directly-discharged gas is realized on one set of the pressure swing adsorption gas separation device. Compared with the prior art, the pressure swing adsorption gas separation method has a simple flow, low investment, low energy consumption and convenience for operation; and the waste gas can be recycled and the directly-discharged gas also can be recycled, and the high recycling rate of the adsorption phase product components in the fresh raw gas can be effectively guaranteed.

The invention relates to an online decoking device and a decoking method. The online decoking device and the decoking method mainly solve the problems that in the prior art, because accumulated coking materials in a tube nest of an ammoxidation gas cooler are hard to remove, the operating pressure of a reactor rises, the reaction performance of catalysts is reduced, device consumption is increased, and the cycle of operation is shortened. The online decoking device comprises an ammoxidation gas cooler, a solid particle storage tank and a solid particle recovery tower. The ammoxidation gas cooler comprises a hollow upper sealing head and a heat exchange segment, the tube nest is distributed all over the heat exchange segment, at least one solid particle ejection distributor is arranged in the upper sealing head, the outlet of the solid particle storage tank is communicated with the solid particle ejection distributor after being connected with an inlet for the inert gas generated in ammoxidation in parallel, and the solid particle recovery tower is arranged at the outlet of the cooler. According to the technical scheme, reaction gas makes contact with solvent so that solid particle components can be recovered in the recovery tower, the problems are well solved, and the online decoking device and the decoking method can be applied to industrial devices used for online decoking of the ammoxidation gas cooler.

The invention discloses a combination system for treating landfill leachate and a method for treating landfill leachate by using the combination system. The combination system for treating the landfill leachate is formed by combining a solid-liquid separation system, an MVC (Mechanical Vapor Compression) evaporation system and a biological treatment system. When being treated, the landfill leachate firstly passes through the solid-liquid separation system to ensure that the contents of COD (Chemical Oxygen Demand), SS (Suspended Substances), colloids, grease and the like in a supernatant liquid are greatly reduced, so that the evaporation efficiency of the supernatant liquid entering the MVC evaporation system is greatly increased, the MVC blockage is avoided, the scaling is delayed to the maximum extent, and the scaling problem is easier to solve; meanwhile, the concentration of the COD in water evaporated by MVC is greatly reduced so that the subsequent biological treatment becomes simpler and easier. Therefore, the combined treatment process for the landfill leachate is very remarkable in synergistic effect and suitable for large-scale popularization.

The invention discloses an automatic treatment system and an automatic treatment method for removing nitrogen and phosphorus from wastewater. The automatic treatment system comprises a sewage treatment system and an automatic control system, wherein the automatic control system comprises a monitoring device and a remote control device; the sewage treatment system comprises an anaerobic tank, a facultative tank and an aerobic sludge tank, wherein a water distribution guide wall is arranged between the facultative tank and the aerobic sludge tank, the anaerobic tank is internally provided with a submersible stirrer, the facultative tank is internally provided with an inverted-umbrella-shaped surface aerator, the aerobic sludge tank is internally provided with a low-speed mixing flow booster, a water decanter, a submersible nitrification return pump and a sludge-discharge submersible pump and meanwhile, the aerobic sludge tank is externally connected with a frequency conversion fan and a liquid caustic soda adding pump. By introducing the automatic treatment system, the labor intensity is decreased, the wastewater treatment work is smarter and the overall operating cost is reduced. In addition, by adopting the automatic treatment method, namely, intermittent service of the anaerobic tank and the facultative tank according to the drainage requirement of the aerobic sludge tank, the purposes of individual and flexible running and in-series running are achieved and the phosphorus and nitrogen removal effect is greatly improved.

The invention relates to a production technology for an AOI automatic board receiving and placing machine applied to a PCB industry. After the A side is detected, a material box at a detected materialbox position is pulled out, and the material box is rotated by 180 degrees and then put into a to-be-detected material box position; at this moment, a benchmark of a PCB is coincident with automaticbenchmark, so that the logical requirements of a novel technology are met without adjusting relative positions of two-sided sucking disc groups in a transverse moving sucking disc combination due to exchange of material boxes, and the production technological requirement of an on-site main line are met. The production technology for the AOI automatic board receiving and placing machine applied tothe PCB industry has the advantages that logic is more reasonable, related technologies are reasonably paralleled to a main logic technology to be executed at the same time, the whole operation cycleof products is shortened, and the yield is increased.

The invention relates to an integrated device capable of automatically separating cups and lids and pressing the lids and a beverage vending machine. The device comprises a cup separating mechanism, alid separating mechanism, a lid pressing mechanism and a driving mechanism. The driving mechanism drives the cup separating mechanism to separate the cups and drives the lid separating mechanism to separate the lids at the same time when rotating in a first direction; the driving mechanism only drives the lid separating mechanism to separate the lids when rotating in a second direction; the lid pressing mechanism comprises a rotary pressing ring and a plurality of pressing heads, the pressing heads are arranged along the rotary pressing ring and vertically and rotatably mounted below the rotary pressing ring in an elastic loading mode, and the lower end edge of the rotary pressing ring is provided with multiple groups of concave segments corresponding to the pressing heads, first transition segments, convex segments and second transition segments. When the rotary pressing ring is rotated until the concave segments just face the pressing heads, the pressing heads are lifted up to abutagainst the concave segments under the action of a reset elastic force; when the rotary pressing ring is rotated until the convex segments just face the pressing heads, the convex segments are pressedagainst the pressing heads, so that the pressing heads are rotated downward to press the lids below. The device is low in cost, compact in structure and high in stability.

The invention provides a cold accumulation bed and a magnetic refrigeration system. The cold accumulation bed comprises a first chamber and a second chamber, wherein the first chamber comprises a first region and a second region, the second chamber comprises a third region and a fourth region, a first magnetic working medium and a fourth magnetic working medium both made of positive effect magneto-thermal materials are arranged in the first region and the fourth region respectively, and second magnetic working medium and third magnetic working medium both made of negative effect magneto-thermal materials are arranged in the second region and the third region respectively; and the cold accumulation bed is further provided with a first magnetic generating device, wherein the cold accumulation bed and the first magnetic generating device can move relative to each other, when being opposite to the first region and the third region, the first magnetic generating device is not opposite to the second region and the fourth region, and when being opposite to the second region and the fourth region, the first magnetic generating device is not opposite to the first region and the third region. According to the cold accumulation bed and the magnetic refrigeration system, magnetizing and demagnetizing effects on the magnetic working media can be realized at the same time, the refrigeratingtime or the heating time of the system is prolonged, and the problem that the refrigerating time of a flow path of the single cold accumulation bed is short is solved.

To realize a small-sized analog multifunction timepiece by adopting a fan shape moving hand mechanism which does not use a hairspring. A multifunction timepiece of the invention is provided with a day display mechanism for operating a small hand moving in a fan shape. The day display mechanism is provided with a day indicator driving wheel, a day jumper, a small day wheel for displaying calendar information, a hammer constituted to rotate based on rotation of a day indicator transmission wheel, and a day return spring for exerting a rotational force to the small day wheel. By bringing a cam contact portion of the hammer to a transmission cam outer periphery portion and exerting an elastic force to a return cam outer shape portion by a return spring portion of the day return spring, the small day wheel is constituted to be exerted with a rotational force in a constant direction.