395results about How to "Full exchange" patented technology

The present invention belongs to the field of micro algae biotechnology, and is especially one kind of closed pipeline optical bioreactor plant for large scale culture of micro algae. The optical bioreactor plant includes transparent pipeline, gas analyzing unit, auxiliary pipe system, culture parameter sensing and controlling unit and economic micro algae. The present invention adopts large gas analyzing unit, parallel connected transparent pipes, mechanically drive water flow, mutual light blocking of cells, etc. to ensure the gas exchange inside the reactor for photosynthetic metabolism, reduce oxidation damage and light damage, replenish CO2 effectively, reduce the blocking of bubble column on water flow, and raise micro algae culturing efficiency and yield. In addition, the optical bioreactor plant may be established in place with sufficient sun light to utilize natural light effectively.

A microfluidic device for controlling the flow of a micro amount of fluid is provided. The microfluidic device is manufactured by binding a sensing substrate including a sensing electrode, an electrode interconnect, and a electrode pad, with a channel substrate including at least two fluid inlet ports, a chamber, and a channel, wherein a first fluid injected via one of the fluid inlet ports flows by natural capillary force, and a second fluid injected via another fluid inlet port is forced to flow by an external pump. The microfluidic device controls fluid flow and flow stoppage by a combination of natural capillary flow and an externally applied pressure as a result of the action of a pump.

The invention relates to a two-layer cell culture system organ chip and a preparation method thereof. The organ chip comprises a two-layer cell culture system, wherein each layer comprises a culture solution micro-fluid channel, a medicament micro-fluid channel, cell culture chambers and a medicament testing tank; a micro structure and micro-fluid channels are designed on the organ chip, two cells are respectively fixed on each specific cell culture chamber, and intercellular signal transmission and interaction between the cells are performed by virtue of the micro-fluid channels. The organ chip realizes the parallel implantation and co-culture of two or more cells, is simple in operation, reduces the dose of practical samples, simplifies the cell implantation process, has the characteristics of portability, economic performance, high efficiency and accuracy, and can be used for independently performing cell seeding and culture and detection of medicament toxicity or pharmacological activity. The two-layer cell culture system organ chip is a novel organ chip with miniaturization, automation and visualization, prepared by simulating the structures and functions of a human organ, and can be used for providing the effective theoretical basis for tissue and regeneration engineering, organ transplantation and medicament evaluation.

The invention relates to a method for manufacturing a printed circuit board by using a novel and improved semi-additive process. The method includes the following steps that: a) a dielectric layer is prepared, and copper foil is pressed on the dielectric layer, so that a copper foil conductive layer can be formed, and as a result, a composite structure substrate can be formed, the roughness of the rough surface of the copper foil being smaller than 4 microns; b) the thickness of the copper foil conductive layer is reduced to 0.2 to 5 microns; c) through holes or blind holes are formed in the dielectric layer and the copper foil conductive layer; d) conductive treatment is performed on the copper foil conductive layer and the hole walls of the blind holes or through holes, so that a seed layer can be formed; e) a photosensitive film is bonded on the surface of the substrate, and an electroplating barrier layer is formed on the substrate through pattern transfer; f) electroplating is performed on the substrate; g) a metal protective layer is formed on the surface of a circuit pattern through using a chemical plating or electroplating method; h) the electroplating barrier layer is removed; i) the bare seed layer and copper foil conductive layer are removed through adopting a flash rusting method, and the circuit pattern formed through electroplating is reserved; j) the metal protective layer is removed; and k) processing in steps from a) to j) is performed on the circuit board repeatedly, so that a multi-layer circuit board can be formed.

The present invention provides one kind of membranous tissue engineering rack comprising a microporous layer of fiber material in 20-1000 nm pore size and a macroporous layer of sponge or fiber material in 50-1000 micron pore size and communicated to the microporous layer. The tissue engineering rack of the present invention has the beneficial effects of capacity of blocking fibrocyte invasion with the microporous layer and providing inside cell tissue growth space with the macroporous layer; excellent mechanical performance for minimizing the amount of needed biological polymer material and acid degraded product; and suitability for repairing bone, tendon, cartilage, skin and other tissues.

The invention provides a radiating packaging structure of a semiconductor power device. The radiating packaging structure of the semiconductor power device is provided with a radiating shell body containing cooling liquid, wherein the inner side of a cover plate of the radiating shell body is provided with radiating assemblies and further forms a fluid flow passage, and meanwhile the other side of the cover plate serves as a substrate of the semiconductor power device, namely, the radiating packaging structure and the semiconductor power devices are integrally formed, so the structure is very compact. The radiating packaging structure is characterized in that due to the integrated packaging structure, heat resistance produced by silica gel with a low heat conductivity coefficient is avoided, the radiating assemblies are located on the other side (namely the substrate) of the cover plate, heat from the power device can be directly dissipated, and meanwhile, the radiating effect of the semiconductor power device is greatly improved under the action of turbulent flow of the radiating assemblies.

The invention relates to a hatching device and method for demersal spawns of marine fishes. The hatching device comprises a net cage, a water channel, a bracket, a temperature controller indicator, a probe, a heating rod, a water inlet hose, a sinker, an air inlet hose, an air stone and an annular water injector, wherein the net cage and the bracket are located in the water channel; the net cage is bound on the bracket; the water inlet hose and the air inlet hose are located in the water channel outside the net cage; the upside of the net cage is provided with the annular water injector; and the probe and the heating rod are arranged in the water channel. The hatching method comprises the following steps of: controlling a hatching condition; hatching; carrying out microscopic examination observation; carrying out secondary water temperature controlling; managing routinely; collecting larva fish and the like. The hatching method has the advantages that spawn deposition is avoided because of conical point inflation; spawns adhered on net cage edges are washed at any time by the annular water injector; the net cage is conveniently replaced; the water temperature is stably controlled by an electric temperature controller; and the fresh water quality can be ensured due to water feeding and drainage modes of water feeding of the annular water injector at the upside and water feeding of the water channel at the bottom and overflowing of the periphery of the water channel. Therefore, by means of the hatching device and method, a hatching rate of the demersal spawns of the marine fishes in the industrial fry breeding is improved.

The invention provides a method used for directly drilling blind holes by using CO2 laser; two or more different diaphragms are used to carry out direct laser boring, which is also called dual-diaphragm or multi-diaphragm mode; the method comprises the steps: 1) according to the diameter of the hole to be processed, a diaphragm is selected, the dimension of laser pulse dot is controlled, a pulse is used for ablating the copper layer on the surface of the processing plate so as to lead the copper layer to form an opening; 2) another diaphragm is selected, the dimension of the laser pulse dot is changed and less than that of the laser pulse dot in the step 1); one or more pulses are used to ablate the medium layer below the opened copper layer on the surface of the processing plate, thus forming a blind hole on the processing plate. The method can generate good laser hole shape, reduces copper slag at the circumference of hole, increases the taper of the hole, avoids the defects in electroplating process, is especially applicable to electroplating hole filling process after boring, and leads the electroplating liquid medicine easy to be replaced and the fovea to be reduced; furthermore, after electroplating, no hollow defects are generated, the preparation process is simple and the cost is low.

The invention discloses a bidirectional satellite navigation and communication positioning method and system, relating to a satellite technology. The system is provided with an outcoming and incoming positioning link and a communication link, comprises satellite ground stations (a master station and an auxiliary station), a synchronous communication satellite and various user terminals, is a highly-integrated navigation positioning and communication integrated bidirectional information system, has various functions, such as bidirectional pseudorange measurement, positioning, velocity measurement, posture measurement, direction finding, time service, help calling, monitoring, surveying, communication, search and rescue, service, and the like and has the characteristics of high precision (relative positioning precision: millimeter level (1Sigma); measuring frequency: 50Hz; velocity measurement precision: 0.01mm / s; bidirectional time service precision: superior to 0.1ns; and communication information transmission rate: 50bps-2400bps), less investment, short construction period, good completeness, high reliability, and the like.

The invention discloses a lithium supplement additive for a lithium ion cathode material. The lithium supplement additive comprises a Li5FeO4 matrix and a coating layer positioned on the surface of the Li5FeO4 matrix, wherein the coating layer comprises a first coating layer carbon layer positioned on the surface of the Li5FeO4 matrix and a second coating layer transition metal oxide layer positioned on the surface of the first coating layer. The invention also discloses a preparation method of the lithium supplement additive, which comprises the following steps: preparing carbon layer coatediron oxide, carrying out wet mixing to prepare surface carbon coated Li5FeO4, mixing with a transition metal ion salt solution and an ammonium hydroxide solution, and carrying out high-temperature sintering to obtain the lithium supplement additive. According to the double-layer coated Li5FeO4 lithium supplementing additive disclosed by the invention, the Li5FeO4 matrix is micron-scale or nano-scale particles, and the particles are uniform and controllable, so that the migration path of electrons and ions is shortened, the lithium supplementing performance of the Li5FeO4 material can be exerted, and the service life of a lithium ion battery is prolonged.

The invention relates to a method for processing refractory organic wastewater through a TIO2 membrane electrode photoelectric rotating disk. A TIO2 photocatalyst is loaded in a base through the direct thermal oxidation method or the sol-gel method, and is fixed on a rotating shaft in a single-chip mode or a multichip series mode to form the photoelectric rotating disk, which is used as a photo anode and is positioned into a semi arc reaction groove, one half of the photo anode is immersed into wastewater, a Cu sheet is used as a cathode, and the photo anode and the cathode are respectively connected with the positive electrode and the negative electrode of a power supply. The voltage of the direct current power supply is adjusted, and a motor is started and the rotating speed of the photo anode is controlled through a speed controller to form a layer of liquid membrane on the surface of the photo anode. An ultraviolet lamp or sunlight is used as an excitation light source, the excitation light source can illuminate the surface of the photo anode catalyser only by penetrating the liquid membrane, the absorption of organic wastewater to light is greatly reduced, the utilization of the excitation light source and the photoelectricity catalyzing degrading efficiency are enhanced, and meanwhile the exchanging and updating of the liquor substances on the surface of the electrode and in the main body are accelerated through the rotation of the rotating disk, the mass transfer is strengthened, and the degrading efficiency is enhanced.

The invention relates to a self-circulated and ecological water saving type irrigating draining system and a draining method. The system is that an internal and external water control gate 2 is arranged between an outer river 1 and a water accumulating wetland area 3; a water pump station 4 is arranged in the water accumulating wetland area 3; a water draining wetland farm ditch 9 is communicated with the water accumulating wetland area 3; the water pump station 4 is connected with an underground water irrigating pipe 5, wherein the underground water irrigating pipe 5 is connected with a water distribution pond 6; the water distribution pond 6 is connected with a water inlet 8; a water distributing head 7 is arranged on the water inlet 8; the water accumulating wetland area 3 is connected with the water draining wetland farm ditch 9; the water draining wetland farm ditch 9 is connected with a draining rill 10; a ridge 11 is arranged between the water draining wetland farm ditch 9 and a farmland 12. The system has the advantages that the water environment for the crops growing is ensured, the utilization rate of water irrigated to the farmland can be increased, and thus the water resource can be effectively saved, and the crops output can be increased; water can be fully exchanged; the water environment mass of the river can be improved; the construction is simple; the popularization and application are convenient; a large amount of construction works can be saved; the system can be widely applied to the farmland.

A device for processing water of river and lake and its method are disclosed. Its filtering cartridge includes four ones arranging in a circle, with pipes connecting each one adjacent and there is separating surface in the upper and middle of it, above which is the cleaned water tank with a U-typed foam exhausting pipe linking to the water feeding pipe of filtering cartridge, and the other end of the pipe is extended into the foam-exhausting tank whose lower part is linking to the dirty-exhausting exit; each water feeding pipe of filtering cartridge is linking to a support jacket pipe, and an sleeve-typed exhausting device is supported by four support jacket pipes, whose bottom is linked with a water feeding pipe and V-typed water channel placing among the inner and outer inner sleeve, there is water curtain formed on the bottom edge and two upper ones. Besides, time register can be installed on the foam-exhausting pipe for automatic washing. The machine needs no human to operate has small volume, exhausts foams water effectively, saves energy and water source, suitable for dealing with pollution of river and lake.

The invention discloses an SF6 gas density and micro-water on-line monitoring device, which includes a sampling gas chamber and a ventilation interface. The inside of the sampling gas chamber is equipped with a dew point sensor, a temperature sensor and a pressure sensor. The ventilation interface is in tight connection with an inflation inlet of monitoring equipment through a locking nut. Semiconductor refrigeration pieces are disposed outside the sampling gas chamber, and the temperature difference between the sampling gas chamber and a monitoring equipment gas chamber is generated by means of refrigeration and heating so as to promote circulatory flow of the gas between a ventilation pipe and a bunch of capillary tubes connecting the two gas chambers, thus ensuring sufficient exchange of the SF6 gas between the sampling gas chamber and the monitoring equipment gas chamber. The monitoring device really realizes on-line monitoring of the SF6 gas state, and solves the defect of inaccurate measured values resulted from lack of gas exchange between gas chambers in existing on-line monitoring devices.

The invention provides a method of preparing molybdenum disulfide microspheres through sulfurizing and reducing a soluble molybdenum source in a reversed-phase microemulsion system. The method includes a) a step of preparing a reversed-phase microemulsion A through adopting polyethylene glycol octylphenol ether (Triton X-100), n-hexanol, cyclohexane and an aqueous solution of the soluble molybdenum source as a surfactant, a cosurfactant, an oil phase and a water base respectively, b) a step of adding an aqueous solution containing a sulfur source and a reductant into the reversed-phase microemulsion A to obtain a reversed-phase microemulsion B, and c) a step of transferring the reversed-phase microemulsion B to a hydrothermal reactor, performing crystallization thermal treatment at a certain temperature for a certain period of time, separating, washing, and drying the reaction product to obtain the molybdenum disulfide microspheres. The method is simple and mild in reaction conditions. Through characterization by a scanning electron microscope and a transmission electron microscope, the molybdenum disulfide microspheres have the characteristics of being solid or hollow, smooth or wrinkled in surface, and the like.

The invention discloses a framework for the equipment and its sending method of message. In each frame, set a main switchboard and a standby switchboard. Each main processing board and operational plate connects to the main switchboard and standby switchboard respectively in the frame. Machine frames are connected each other through the cascade interface provided by the main switchboard and the standby switchboard. Since the invention uses a switchboard for connecting the various circuit boards, and switchboard directly provides cascade interface between frames, so the wiring between frames is greatly simplified, which is easy to install and maintenance.

The invention relates to a method for ecologically improving the water quality of a water delivery type lake. In the method, frame outlines of water-permeable diversion piers, water-permeable spur dikes and water-permeable diversion walls are respectively formed in the lake; rubbles are arranged outside wood piles; gabions are arranged on the inner sides of the wood piles; gravels are filled among the gabions to form the water-permeable diversion piers, the water-permeable diversion walls and the water-permeable spur dikes; the water-permeable diversion piers are arranged at an inlet of the lake; and the water-permeable spur dikes and the water-permeable diversion walls are continuously staggered along the direction of water current. According to the method, the defects that the engineering quantity is large, the treatment expense is high, secondary pollution is easily caused, the symptoms not the causes are addressed, and the like are overcome; the water-permeable diversion piers, the water-permeable spur dikes, the water-permeable spur dikes and the water-permeable diversion walls are sequentially arranged in the lake, so that a water body in the lake is fully exchanged, the hydraulic retention time is prolonged, the water quality purification is enhanced, the silt settling effect is improved and the flow speed is reduced; the method can be used for creating environments which are more suitable for organisms to live in, enriching species and facilitating the recovery of a biological system; and the method has the advantages of simpleness for operation, convenience for construction, stable functions and low construction cost.

The invention provides optical fibre complete exchange equipment and an optical fibre complete exchange method, wherein the equipment comprises an exchange plate, a search device and a driving device,wherein a plurality of exchange holes are formed on the exchange plate, both ends of each cord circuit optical fibre are respectively fixed in a pair of cord circuit optical fibre linkers, and one end of each outside line optical fibre is respectively fixed in a line optical fibre linker; the number of the cord circuit optical fibres is smaller than one half of the number of the outside line optical fibres; the search device is used for searching a pair of exchange holes which is idle at one side and is arranged on the exchange plate as well as used for inserting the line optical fibre linkerand used as a pair of target exchange holes; and the driving device is used for driving and fixing the line optical fibre linkers which need to be exchanged and arranged at the end parts of any two outside line optical fibres to respectively move to the target exchange holes and to be inserted into the target exchange holes, and is also used for respectively moving a pair of unoccupied cord circuit optical fibre linkers to the target exchange holes and to be inserted into the target exchange holes. The embodiment of the invention can realize the complete exchange among outside line optical fibres, optical signals have smaller attenuation, and the cost can be effectively saved.

The invention belongs to the technical field of environmental protection, and particularly relates to a preparation method of an algae biofilm and application thereof in sewage treatment. The preparation method specifically comprises the steps of carrier pretreating, algae culturing, algae domesticating and algae biofilm preparing. The preparation method of the algae biofilm has the advantages that the preparation cost is low, the raw materials are easy to obtain, and the algae biomass is easy to recycle; the prepared algae biofilm can achieve the efficient nitrogen and phosphorus removal effect in sewage treatment, achieves the purpose of general sewage treatment and not only can overcome the defects that in a suspended algae system, the algae density is low, the hydraulic retention time is long, algae and water are difficult to separate, too more suspended solids (SS) exist, the resource recycling rate is low but also has the advantages of reducing immobilization reagent cost, weakening the influences of immobilization reagents on the algae activity, reusing immobilization carriers and the like.

The invention discloses a magnetic refrigeration cooling device and control system which comprises a magnetic refrigeration system, a cooling system and a driving control system. The magnetic refrigeration system comprises a magnetic field system, a magnetic working medium device, a refrigeration end and a heating end, a magnetic working medium is placed into the magnetic field system, the magnetic torque of the magnetic working medium is neat or disordered along with change of a magnetic field direction, the cooling system comprises a pump, a disk seamless cooling pipeline, a disk seamless heat absorption pipeline, a draft tube and cooling liquid, and the cooling liquid circulates in the pipeline in a reciprocating manner under driving of the pump. By the aid of a single-chip microcomputer in the adaptive on-off driving control system for an intelligent temperature control switch, on one hand, periodic change of the magnetic field system is controlled, on the other hand, the pump is controlled to drive the cooling liquid to periodically and circularly flow, the cooling efficiency of the system is higher than that of a traditional single cooling system by the aid of magnetic refrigeration technology, magnetic leakage can be effectively decreased, a cooled part can be intelligently cooled, energy is saved, environments are protected, pollution is avoided, and noise is quite low.

The invention discloses a marine shellfish germchit intermediate cultivation device and a culture method integrating marine shellfish germchit intermediate cultivation and shellfish nurturance, wherein the culture method comprises the following steps of: placing the marine shellfish germchit intermediate cultivation device at the upper layer of a culture water body of a marine shellfish culture pond, placing shellfish germchits in the marine shellfish germchit intermediate cultivation device for carrying out the intermediate cultivation of the marine shellfish germchits and carrying out the shellfish nurturance in the middle-lower water body in the culture pond. The invention fully utilizes the upper-layer space of the culture water body, realizes the purpose of germchit supply and nurturance self-sufficiency, increases incomes, reduces culture risks, has simple and easy operation and can be widely popularized and applied.

The invention relates to the filed of structure catalyzers, and particularly discloses a titanium oxide coating / foam silicon carbide structure catalytic carrier and a preparation method thereof. A structure catalyzer is utilized to achieve the purposes that a mass and heat transfer effect is enhanced, the dosage of the catalyzer is reduced, the transportation consumption and the power dissipation are reduced, and the like. The structure catalytic carrier is composed of a foam silicon carbide base body and a nanometer titanium oxide coating coated on the surface of the foam silicon carbide basal body, wherein the weight ratio of titanium oxide to the foam silicon carbide base body is (1-50) to (50-300), so that foam silicon carbide can present a P-type semiconductor characteristic through controlling and regulating preparation conditions of a catalyzer, a titanium oxide coating material can present an N-type semiconductor characteristic, furthermore, the whole catalyzer can macroscopically present a P-N node effect, the absorption efficiency of the titanium oxide coating in a visible light range is improved, and the catalyzer can improve the catalytic degradation efficiency of a pollutant in a water solution under visible light illumination.

The invention discloses a double-body movable culture work ship. The ship is characterized by comprising a first ship body, a second ship body and a plurality of lifting net cages, wherein the first ship body and the second ship body are oppositely arranged at the side faces of the ship and used for providing main buoyancy, and the lifting net cages are arranged between the first ship body and thesecond ship body and connected with the two ship bodies; and closed circulating water industrial aquaculture of small-size fishes is carried out in the two ship bodies, and wild aquaculture of large-size adult fishes is carried out in the lifting type net cages in a relaying manner. According to the ship, the advantages of a closed culture mode and an open culture mode are organically integrated,and offshore wild culture from the small fries to the adult fishes is achieved. Compared with open type net cage culture, marine culture can be started from the small-specification fish fries, the pressure of land or near-shore net cage culture on the environment is reduced, and meanwhile the marine transportation cost of large-specification fishes is reduced; and compared with full-closed type culture, the ship has the advantages that low-density open type wild culture is adopted in later-stage culture, and the quality and selling price of bred fishes are higher.

The invention discloses a porous polyimide film and a preparation method and application thereof. Binary anhydride and diamine are subjected to low-temperature polycondensation reaction in a polar solvent to generate a precursor polyamic acid PAA solution; additives are added into the precursor polyamic acid PAA solution and stirred to form a casting film solution; the casting film solution is defoamed, scraped, coated on a glass plate and immersed in a coagulation bath; then the glass plate is taken out and naturally dried; and the porous polyimide film is obtained through thermal imidization or chemical imidization treatment. The preparation method does not need high temperature and high pressure, has simple requirements on film making equipment, and is favorable for realizing large-scale industrial application. In addition, the film has adjustable thickness, porosity of more than 40%, high liquid absorption rate, good lithium ion electrolyte wettability and excellent high temperature resistance, and is expected to become one of the diaphragm materials for the next generation of lithium ion batteries.

A device for processing water of river and lake and its method are disclosed. Its filtering cartridge includes four ones arranging in a circle, with pipes connecting each one adjacent and there is separating surface in the upper and middle of it, above which is the cleaned water tank with a U-typed foam exhausting pipe linking to the water feeding pipe of filtering cartridge, and the other end of the pipe is extended into the foam-exhausting tank whose lower part is linking to the dirty-exhausting exit; each water feeding pipe of filtering cartridge is linking to a support jacket pipe, and an sleeve-typed exhausting device is supported by four support jacket pipes, whose bottom is linked with a water feeding pipe and V-typed water channel placing among the inner and outer inner sleeve, there is water curtain formed on the bottom edge and two upper ones. Besides, time register can be installed on the foam-exhausting pipe for automatic washing. The machine needs no human to operate has small volume, exhausts foams water effectively, saves energy and water source, suitable for dealing with pollution of river and lake.

The invention provides a packaging structure of an integrated power control unit. Heating elements are not distributed according to a traditional functional module. All the heating elements are distributed in a scattered mode. The problems of the use conditions, power and the like of the heating elements achieving the same function and different functions are comprehensively considered, the heating elements achieving the same function are distributed on a main substrate at intervals, the heating elements achieving the different functions are also distributed on the main substrate at the same time, and therefore under the different use conditions, the heating quantities of different areas on the whole main substrate are even to the great extent. On the one hand, even heating provides the powerful guarantee for even heat dissipation, on the other hand, the simplification of the integrated heat dissipation structure is facilitated, and then the packaging structure is beneficial to meeting the small-size requirement of the control unit. Meanwhile, the even heating is also beneficial to improving the use stability of the main substrate and prolonging the service life of the main substrate.

The invention relates to the field of air source heat pump utilization, in particular to a three-tank four-cavity indoor air source heat pump water heater, which uses three water tanks which include ahorizontal heat preservation pressure water tank, a water storage and cold water supply water tank and a heat pump heating water tank and are combined to form four independent cavities including a cold water cavity, a hot water cavity, a water storage and cold water supply cavity and heat pump heating water cavity, wherein the four cavities are combined to form a cold-hot water closed circulationsystem. The three-tank four-cavity indoor air source heat pump water heater solves the problem of low hot water utilization rate caused by cold and hot water mixing of the prior air source heat pumpwater heater of a heat pump and the problem of indoor floor effective area occupation of the a vertical heat pump water heater, realizes demand-based hot water production and avoids waste and problemscaused by the overlong heating time of a large amount of water to be heated at one time. A surface cooler is closely attached with a ventilator, an exhaust hole is led out by a hose, and the indoor waste gases can be directly discharged outside. Based on an indoor ventilation theory, the hour discharge amount of the ventilator is 180 to 210 cubic meters, and the ventilator can be used in winter without influencing indoor temperature.

The invention discloses a process unit and a method for removing heavy hydrocarbon during the liquefaction process of natural gas. The process unit comprises a precooler, a hydrocarbon liquid separator, an expansion machine, a heavy hydrocarbon removal tower, a second throttle valve, a hydrocarbon removal ice chest and a dethanizer which are sequentially connected. The process unit has the following active effects: compared with a throttle valve, the obtained natural gas has lower temperature by filling the natural gas to the expansion machine for expansion and temperature reduction by utilizing the pressure of the natural gas; the expansion machine can be connected with a compressor or an electric generator to recycle part energy so as to realize energy conservation; an ethane heat exchanger and the hydrocarbon removal ice chest are utilized to realize full exchange of energy in the process unit, so that an external cold source is not needed, investment is reduced, and energy conservation and consumption reduction are realized; the process unit has excellent heavy hydrocarbon removal effect, removes the heavy hydrocarbon component in natural gas as far as possible, facilitates follow-up liquefaction process, effectively avoids freezing and blocking of heavy hydrocarbon and meets the demand of liquefaction of natural gas.

The invention discloses a cooling system of a computer room. The cooling system comprises a radiation refrigeration device, a self-driving gas-liquid phase-change heat transfer device, an undergroundcold storage device, a cold-supplementing device and a ventilation system. Multi-cold-source cooling is provided for a computer room heat dissipation system through the radiation refrigeration device,the self-driving gas-liquid phase-change heat transfer device, the underground cold storage device and the cold-supplementing device. The cooling system combines a self-driving phase-change heat transfer technology, a deep space radiation refrigeration technology and a phase-change energy storage technology to conduct scientific integrated optimal design on the heat dissipation system of the all-weather operation data center computer room, according to dynamic change of the external environment and the heat load, coordinative work between all cold sources is realized, under the premise of ensuring good heat dissipation of the whole system, energy and resource consumption can be saved to the maximum extent, and safe and stable operation of equipment can be ensured.

The invention discloses a method and a system for molten slag granulation and sensible heat recovery, and belongs to the technical field of industrial waste residue treatment and utilization. The method comprises the following steps of: pressurizing water, and injecting water from a nozzle to form a columnar high-speed water jet flow; impacting multiple strands of columnar molten slag flows on the same row in sequence; breaking the molten slag; in the falling process, cooing the broken molten slag by a water cooling wall; recovering parts of sensible heat; then, falling into the bed layer of a fluidized bed or a travelling grate to be cooled by air entering from outside, completely solidifying the molten slag to finish granulation and obtain hot air; sending hot air obtained on the fluidized bed or the travelling grate into a waste heat boiler to recover heat; and sending solidified molten slag particles output out of the fluidized bed or the travelling grate into a moving bed for further recovering the sensible heat. The molten slag can be broken by the high-speed water flow, the breaking and flying effect of the method is good, a slag wool generation amount is small, slag wool is easy to process because the slag wool contains water, the operation energy consumption and the water consumption of the slag wool are low, and therefore the sensible heat recovery of the molten slag can be favorably carried out.