34 results about "Hydrothermal vent" patented technology

The invention discloses a seafloor hydrothermal vent temperature difference energy power generating device. The seafloor hydrothermal vent temperature difference energy power generating device comprises a flow guide tube and a cavity; a top end cover and a flange end cover are fixed to two ends of the cavity respectively; the flow guide tube, the top end cover, the flange end cover and the cavity form a sealed cavity; a first temperature difference power generating sheet, a separation board and a second temperature difference power generating sheet are arranged in the sealed cavity; the hot ends of the first temperature difference power generating sheet and the second temperature difference power generating sheet are attached to the outer wall of the flow guide tube; the cold ends of the first temperature difference power generating sheet and the second temperature difference power generating sheet are attached to the inner wall of the cavity; the exterior of the cavity is provided with a plurality of ring ribs; and the lower end of the flow guide tube is provided with a flow guide tube flange and a trumpet-shaped flow separation hood. According to the seafloor hydrothermal vent temperature difference energy power generating device of the invention, a thermoelectric Seebeck effect is utilized, and the flow guide tube is adopted to guide hydrothermal fluid, and the temperature difference power generating sheets are adopted to convert heat energy into electric energy, and therefore, power generation can be realized. The seafloor hydrothermal vent temperature difference energy power generating device of the invention is simple and compact in structure; and the temperature difference of the two ends of each temperature difference power generating sheet is large, and therefore, the utilization rate of hydrothermal energy is high.

A system that utilizes the naturally superheated fluids available from hydrothermal vents to harness the almost limitless quantities of heat energy they contain. It consists of one major system that has three parts: (i) funnel, (ii) pipes, and (iii) any combination of several mechanical attachments. The recovered heat energy will then be used to drive steam turbines or other equipment for electricity generation, water desalination, or any other thermal energy use. It could also be simultaneously or separately fed into resource recovery equipment for the recovery of valuable metals, minerals, and chemicals without system modification.

A method for extracting fuel gases from an underwater plume emitted from an underwater hydrothermal vent includes the step of collecting via an underwater fluid collector an underwater plume emitted from the hydrothermal vent. The underwater plume includes methane and hydrogen. The method further includes a step of directing a first fluid containing the underwater plume into a first inlet of a first underwater heat exchanger and a second fluid into a second inlet of the first underwater heat exchanger. The second fluid at the second inlet is at a temperature sufficiently lower than the temperature of the first fluid to transfer sufficient heat therebetween to form methane hydrate and hydrogen-methane hydrate in the first fluid. The method further includes the step of conveying the methane hydrate and hydrogen-methane hydrate to the surface of the water body via a duct connected to a first outlet of the first heat exchanger.

The invention discloses a submarine hydrothermal vent high-precision sound wave crossing time measuring system which comprises an underwater transducer array plane, a sound wave signal generation module, a sound source automatic switching circuit and a data acquisition system, wherein the underwater transducer array plane consists of a plurality of underwater transducers; the sound wave signal generation module mainly utilizes sound wave signals transmitted and set by a signal generator as sound source signals; the sound source automatic switching circuit mainly consists of a singlechip control unit, a decoding module and a driving module; and the data acquisition system comprises a serial port communication unit, a data acquisition and storage unit and a data processing unit. According to the invention, the defects of traditional measurement can be overcome; and when the system disclosed by the invention is used for performing continuous real-time measurement under a severe environment with high temperature, corrosion and multiple suspended particles, the hydrothermal vent heat flux measurement accuracy can be improved.

The invention discloses a compound bacterium community capable of efficiently leaching a sulphide ore, and a compounding method and an application method thereof, and belongs to the technical filed of wet-process metallurgy. Aiming at a biological leaching mechanism of the sulphide ore and the physiological-biochemical characteristics of microorganisms, a community capable of efficiently leaching the sulphide ore is compounded by a plurality of mineral leaching microorganisms, wherein the mineral leaching microorganisms comprise marine bacteria which come from deep-sea hydrothermal vents and are capable of enduring high concentration sodium chloride, sulfur-oxidized bacteria, iron-oxidized bacteria and archaea which are from a freshwater environment, autotrophic bacteria and facultative heterotrophic bacteria. Not only can the difficult problem that the mineral leaching microorganisms from the freshwater environment are intolerance of sodium chloride be solved, but also microorganisms required by oxidation and dissolution of the sulphide ore and diversity of chemical reactions are guaranteed. The compound bacterium community can obviously increase leaching efficiency and leaching rate of the sulphide ore such as copper pyrites and can be applied in a leaching process and a dump leaching process of a stirring tank. A certain basis for popularization and application of biological metallurgy of the sulphide ore is provided by the invention.

The invention discloses amylase mutants with improved thermal stability as well as a coding gene and application of the amylase mutants. Starting from hydrothermal vent derived bacterium alpha-amylase AMY121, the amylase mutants with improved thermal stability are obtained by virtue of site-saturation mutagenesis technology; the hydrothermal vent bacterium alpha-amylase AMY121 has an amino acid residue sequence as shown in SEQ ID NO.1; and the amino acid sequences of screened amylase mutants Y187E, K205L and Y187E / K205L are respectively as shown in SEQ ID NO.2, SEQ ID NO.3 and SEQ ID NO.4. At corresponding optimum action temperature, on the basis of an evaluation standard of T5015 and half-life period t1 / 2 at 75 DEG C, the thermal stability of the amylase mutant is improved compared with wild amylase; and the application scope of the hydrothermal vent bacterium alpha-amylase AMY121 is extended.

A carbon negative clean fuel production system includes: a main platform; a heat collection device for capturing heat from a hydrothermal emissions from a hydrothermal vent on a floor of an ocean; a heat driven electric generator; a heat distribution system including a heat absorbing material and a heat transporting pipe; anchor platforms tethered to the main platform; a mineral separator; a seawater filtration unit; a water splitting device; a sand refinery machine; a carbon removal system; and a chemical production system for producing hydrides, halides and silane. Also disclosed is a method for carbon negative clean fuel production, including: capturing heat; producing electric energy; separating minerals; filtering seawater; splitting water; refining sand; removing carbon dioxide; and producing hydrides, halides, and silane.

A carbon negative clean fuel production system includes: a main platform; a heat collection device for capturing heat from a hydrothermal emissions from a hydrothermal vent on a floor of an ocean; a heat driven electric generator; a heat distribution system including a heat absorbing material and a heat transporting pipe; anchor platforms tethered to the main platform; a mineral separator; a seawater filtration unit; a water splitting device; a sand refinery machine; a carbon removal system; and a chemical production system for producing hydrides, halides and silane. Also disclosed is a method for carbon negative clean fuel production, including: capturing heat; producing electric energy; separating minerals; filtering seawater; splitting water; refining sand; removing carbon dioxide; and producing hydrides, halides, and silane.

The invention discloses a submarine hydrothermal exhalation simulation device having an observation function. The device mainly comprises a vertical high pressure injection pump, a temperature control system, a pressure regulating valve, a transparent pressure vessel, a high speed camera, a water cooling system, a pressure gauge, a sulfide collecting device, a pressure release valve and a stop valve. The device can simulate submarine hydrothermal exhalation, can regulate different temperature, speed and chemical components of a hydrothermal vent according to different requirements and can observe by using the high speed camera. Submarine hydrothermal exhalation simulation observation is realized by using a unique structural design under the lab environment according to the principle of similarity based on the real submarine vent environment, and the highly complex physiochemical process that hydrothermal liquid jets to the relatively low temperature and low pressure environment from the high temperature and high pressure environment and mixes and reacts with the seawater is basically restored so that the conditions and the data which are difficult to obtain through pure theoretical analysis and value simulation can be provided for the research related to the hydrothermal process.

The invention relates to an in situ on-line acoustic detection method of velocity field at a deep-sea hydrothermal vent. The traditional hydrothermal vent velocity field detection method can not accurately measure the velocity distribution at a hydrothermal vent. The method comprises the steps of: firstly enabling a underwater transducer No.1 in the lower layer to transmit acoustic signals, and receiving the acoustic signals by all underwater transducers in the upper layer, which are used as receiving underwater transducers, and calculating the transit time of the acoustic wave between the underwater transducer No.1 in the lower layer and all the underwater transducers in the upper layer; secondly, repeating the process to obtain the transit time of the acoustic wave between each underwater transducer in the lower layer and all the underwater transducers in the upper layer; then using the underwater transducers in the upper layer to transmit acoustic wave, using all the underwater transducers in the lower layer to receive the acoustic wave, and calculating the transit time of the acoustic wave between each underwater transducer in the upper layer and all the underwater transducersin the lower layer; and finally rebuilding the two dimension mean normal velocity field at the deep-sea hydrothermal vent by adopting data reduction chromatography. The method adopts a non-contact measuring mode, can perform continuous real time measuring in severe environment, and improves the measuring accuracy of heat flux at the hydrothermal vent.

The invention relates to two kinds of amylase protein and an encoding gene thereof, and application of the protein as starch hydrolase in industrial field. Fosmid library gene information fragment annotation information obtained by performing 454 sequencing on a sample coming from a deep-sea hydrothermal vent is taken as a research material, corresponding clones F_135 in a corresponding amylase gene cluster is screened out from a metagenome library, and the Fosmid clones is subjected to shotgun combined primer-walking sequencing and ORF predication, so that the gene sequence of the encoding amylase is obtained, and the DNA sequence of the encoding amylase is shown as a sequence table SEQ ID NO. 1. A target gene is inserted into pET-32a(+) expression vector, and through expression purification a polypeptide or a mature peptide encoded by the gene is obtained, and the amino acid sequence of the polypeptide or the mature peptide is shown as a sequence table SEQ ID NO. 2. The enzyme activity possessed by the amylase is subjected to preliminary research. The amylase is applicable to industrialized production correlated to starch hydrolysis because of the unique activity and the enzymological characteristics.

The invention discloses amylase mutants with improved thermal stability as well as a coding gene and application of the amylase mutants. Starting from hydrothermal vent derived bacterium alpha-amylase AMY121, the amylase mutants with improved thermal stability are obtained by virtue of site-saturation mutagenesis technology; the hydrothermal vent bacterium alpha-amylase AMY121 has an amino acid residue sequence as shown in SEQ ID NO.1; and the amino acid sequences of screened amylase mutants Y187E, K205L and Y187E / K205L are respectively as shown in SEQ ID NO.2, SEQ ID NO.3 and SEQ ID NO.4. At corresponding optimum action temperature, on the basis of an evaluation standard of T5015 and half-life period t1 / 2 at 75 DEG C, the thermal stability of the amylase mutant is improved compared with wild amylase; and the application scope of the hydrothermal vent bacterium alpha-amylase AMY121 is extended.

The invention relates to a fast search and positioning device, method and system for deep-sea hydrothermal vents. The device includes: a receiving hydrophone array, a beam scanning unit, a hydrothermal vent detection unit and a hydrothermal vent directional positioning unit, the receiving hydrophone array is used to collect underwater acoustic data, and the beam scanning unit detects the hydrothermal Acoustic data is processed to obtain an acoustic signal, and the hydrothermal vent detection unit is used to judge whether there is a hydrothermal vent according to the acoustic signal, and the directional positioning unit for the hydrothermal vent is used to locate the hydrothermal vent when the hydrothermal vent exists. Location of hydrothermal vents. The invention can realize long-distance rapid search and precise positioning of deep-sea hydrothermal vents.

The invention discloses a submarine hydrothermal vent high-precision sound wave crossing time measuring system which comprises an underwater transducer array plane, a sound wave signal generation module, a sound source automatic switching circuit and a data acquisition system, wherein the underwater transducer array plane consists of a plurality of underwater transducers; the sound wave signal generation module mainly utilizes sound wave signals transmitted and set by a signal generator as sound source signals; the sound source automatic switching circuit mainly consists of a singlechip control unit, a decoding module and a driving module; and the data acquisition system comprises a serial port communication unit, a data acquisition and storage unit and a data processing unit. According to the invention, the defects of traditional measurement can be overcome; and when the system disclosed by the invention is used for performing continuous real-time measurement under a severe environment with high temperature, corrosion and multiple suspended particles, the hydrothermal vent heat flux measurement accuracy can be improved.

The in-situ detection system of the deep-sea high-temperature hydrothermal area of ​​the present invention includes a hydrothermal sampling detection device, a power supply device, a microcomputer control device, and an electrode flushing and calibration device. The detection electrode in the hydrothermal sampling detection device can detect the chemical composition of the hydrothermal fluid when the hydrothermal fluid flows through it. The signal output terminal of the microcomputer control device is connected with the ICL coil, which can transmit the signal to the deep submersible. The electrode flushing and calibration device can calibrate the detection electrodes in the hydrothermal sampling detection device. The invention is powered by the battery carried by itself, and can run automatically for a long time in the deep sea. The invention has three working states of high-temperature hydrothermal detection, detection electrode flushing, and detection electrode calibration, and the state switching is realized by a microcomputer control device, and has the functions of long-term detection of high-temperature hydrothermal fluid in deep-sea hydrothermal vents and self-maintenance calibration of detection electrodes , greatly improving the performance of the detection electrode and the accuracy of chemical quantity detection. It can provide detailed and accurate data for scientific research on deep sea hydrothermal fluids.