68 results about "Ice core" patented technology

The invention discloses a hot water core drill used at a glacier. The hot water core drill comprises a plunger pump, a two-way pipe, a heat insulation pipe, an ice core pipe, a drill bit and a flower divider, wherein the plunger pump is arranged in a pump storage pipe, the upper end of the plunger pump is connected with a water outlet pipe, the lower end of the plunger pump is connected with a water absorption pipe, the two-way pipe is connected to the lower end of the pump storage pipe, the lower end of the two-way pipe is connected with the heat insulation pipe, the ice core pipe is inserted in the heat insulation pipe, the drill bit is arranged below the heat insulation pipe and the ice core pipe, the flow divider is arranged on the lower portion of the two-way pipe and at the top end of the ice core pipe, the top end of the flow divider is connected with a hot water injection pipe, the lower portion of the flow divider is connected with a plurality of drainage pipes which are arranged in a gap between the heat insulation pipe and the ice core pipe, and hot water injected by the hot water injection pipe at the top end of the flow divider is injected into the drainage pipes through the flow divider. The hot water core drill has the advantages that due to the fact that the hot-melting drill bit is adopted for tapping and drilling of the hot water drill, and molten water is extracted to serve as a raw material of the hot water drill, cost is reduced, and the energy utilization rate is increased.

The invention discloses an early identification method for burst of an ice lake without ice core in a moraine dyke, which is characterized in that the method comprises the following steps: a, judgingwhether a moraine lake without ice core exists in a moraine dyke; b, determining the basic parameters of the moraine lake without ice core through Google Earth; c, calculating a comprehensive discrimination factor T for early identification of the moraine lake without ice core; and d. judging the risk of the moraine lake without ice core according to the comprehensive discrimination factor T for early identification of the moraine lake without ice core. The invention studies the burst mechanism of the moraine lake without ice core in the moraine dyke by analyzing various influence factors, makes comprehensive judgment, establishes an early identification calculation model for burst of the moraine lake without ice core, accurately identifies the dangerous moraine lake without ice core in early stage in a quantitative manner, and greatly improves the accuracy of judgment.

An ice-making device for a refrigerator and method for controlling the same, which is designed to separate ice through a simple process. The ice-making device for a refrigerator includes an ice tray (146) defining an ice-making space, an ice core member that is partly received in the ice-making space to make ice at an end thereof, a driving unit moving and rotating at least one of the ice tray and the ice core member, and a power transmission unit for transferring power from the driving unit to the ice core member. The ice on the ice core member starts being separated in a state where the ice is spaced apart from an outer surface of the ice tray.

The invention discloses an air reverse circulation for a polar region ice layer. The system comprises an air compressor, an air circulating pipeline, an air reverse circulation double-pipe drilling tool and an ice flake and core collecting device. The air compressor is connected with an air inlet pipe of the air circulating pipeline, the air compressor provides circulating air with pressure for the air circulating pipeline, the air reverse circulation double-pipe drilling tool is assembled at the lower end of the air circulating pipeline, and the ice flake and core collecting device is connected to an outlet of the air circulating pipeline and used for collecting ice flakes and cores drilled out by the air reverse circulation double-pipe drilling tool. The system has the advantages that the whole system is compact, light, easy to operate, high in reliability, high in drilling speed, short in auxiliary time and suitable for coring or comprehensive drilling in the polar environment.

The invention discloses a vortex tube type heat preservation sampling drilling tool which comprises a double-wall drilling rod, a heat-insulation heat preservation layer, a coring barrel, a vortex tube, an upper rolling bearing, a lower rolling bearing, a hot-melt drilling bit and a spiral blade. The heat-insulation heat preservation layer is arranged on the inner wall of the double-wall drilling rod in a clinging manner, the coring barrel is arranged inside the heat-insulation heat preservation layer, the spiral blade is coaxially arranged on the outer side of the coring barrel, and a cold air spiral channel is formed between the heat-insulation heat preservation layer, the coring barrel and the spiral blade; the vortex tube is arranged at the upper end of the double-wall drilling rod. The vortex tube type heat preservation sampling drilling tool has the advantages that the vortex tube type heat preservation sampling drilling rod is simple in process, high in acquisition efficiency for rock core samples of ice cores and natural gas hydrate in plateau frozen soil districts and low in disturbance on primary statues of the ice cores and the natural gas hydrate; outstanding effects can be realized during coring and drilling; air is used as power, accordingly, the vortex tube type heat preservation sampling drilling tool is free of pollution, additional external mechanical torque can be omitted, the service life and the reliability of the vortex tube type heat preservation sampling drilling tool can be guaranteed, the problem of insufficient water resources in the plateau frozen soil districts can be solved, and the integral cost performance of the vortex tube type heat preservation sampling drilling tool can be greatly improved.

The invention discloses a hot-water core drilling method and a device for a polar region ice layer. The device comprises a hot-water pipe, a cable, a cable terminal, a bottom-contacting detecting mechanism, a water distribution connector, an upper reverse-twisting device, an electric chamber, a lower reverse-twisting device, a screw motor, a lower-portion double-pipe drilling tool and a drill bit. The method comprises the steps that hot water is utilized to serve as power medium to drive a hole-bottom drilling tool to rotate to complete core drilling, the hot water is transported to the hole-bottom drilling tool by adopting a pipeline, meanwhile, the cable is utilized to supply power to sensors and a communication module in the drilling tool, and it is achieved that the earth surface monitors the drilling parameters in a hole; the ice-layer cutting drill bit drills downwards though rotary cutting, the influence of full hole drilling of the hot-water drill on the ice core quality is avoided, and meanwhile flake ice generated by cutting is taken away by the hot water from a hole bottom, and is melted in the process of being transported upwards; reverse-twisting devices are designed above the drilling tool to prevent an upper-portion drilling tool from rotating when the drill bit cutting the ice layer, and meanwhile the reverse-twisting devices are supported on the hole wall, so that stable drilling of the drilling tool under a small inclination is ensured.

The invention discloses an air reverse circulation continuous coring ice drill bit. A drill bit body of the air reverse circulation continuous coring ice drill bit is in threaded connection with a double-walled connector external pipe of a double-walled connector. A plurality of cutting tool bits are fixed to the bottom lip surface of the drill bit body through bolts. The front corner of each cutting tool bit inclines towards a drill bit central channel by an inclination angle alpha of 5-15 degrees. A cushion shoe is connected with the cutting tool bits and the drill bit body through bolts. A support spraying tube is connected with the drill bit body through threads. An ice core breaking device is fixed to a step inside the drill bit body. The support spraying tube and a double-walled connector internal pipe form a circular seam gap. The double-walled connector external pipe and the double-walled connector internal pipe form an annular space, and a supporting block is arranged between the double-walled connector external pipe and the double-walled connector internal pipe. A fairing is connected with the double-walled connector external pipe through threads. The fairing and the outer wall of the drill bit body form an annular spray nozzle. A plurality of gas inlet holes are formed in the double-walled connector external pipe. According to the air reverse circulation continuous coring ice drill bit, the drilling efficiency is improved, the ice core recovery rate is increased, accordingly the construction period of polar region drilling projects is greatly shortened, and the risk of complex accidents in a hole is lowered.

The invention relates to an ice-core solid direct current conductivity measurement system and solves the problem of low ice-core conductivity detection accuracy. The ice-core solid direct current conductivity measurement system comprises a working platform, a control unit, a drive unit, a detection unit for measuring movement displacement of the drive unit, a high-voltage circuit and a probe, wherein the probe is arranged on the drive unit and is connected with the high-voltage circuit; the high-voltage circuit is connected with the control unit; after the high-voltage circuit is electrified and an ice core is fixed to the working platform, the drive unit drives the probe to slide along the surface of the ice core, thereby enabling the control unit to calculate the conductivity of different positions of the ice core according to the detection unit.

The invention discloses a device for detecting the dielectric property of an ice core while drilling in combination with a polar-air core-drilling type rotary jetting drill bit. An upper connector ofthe device is connected with an ice core pipe; the upper connector is provided with an upper bearing block; an upper thrust ball bearing is embedded in the upper bearing block; a bearing baffle ring is arranged at the lower end of the upper thrust ball bearing; a lower thrust ball bearing is arranged on a lower bearing block; a drill bit body is connected with the bearing baffle ring; the drill bit body and the bearing baffle ring can rotate synchronously; an ice core centralizer is arranged in the ice core pipe; the ice core pipe is provided with a wire through hole, a low-position electrode,a middle annular gap, a high-position electrode and a protective electrode; the wall of the drill bit body is provided with a gas flow guide bump, an ice core clamping and breaking device, a high-pressure air flow guide hole and a bottom-lip-surface air flow guide hole; a tool bit is fixed at the bottom of the drill bit body. The device can detect the dielectric property of the ice core while drilling, and combination with high-pressure air rotary jet drilling avoids the influence of liquid on measurement accuracy. The drill bit body acts independently, and the upper connector, the ice core pipe and the like do not rotate, so that the stability of the drilling tool is improved.

The invention discloses a combustible ice core sample storage device and relates to the technical field of combustible ice storage. According to the combustible ice core sample storage device, the problems that in the prior art, combustible ice cannot be preserved or is short in preservation time, and the situation that the combustible ice is subjected to temperature control and accordingly various properties of the combustible ice are researched cannot be achieved are solved. The combustible ice core sample storage device comprises a storage tank and a sealing cover. A boss is arranged on thelower portion of the sealing cover; plug pins are arranged on the lower portion of the boss, and plug holes are formed in the upper portion of the storage tank; the sealing cover is of a hollow structure and internally provided with a battery pack and a CCS which are connected; and the storage tank comprises an outer barrel and an inner barrel, and a semiconductor flexible refrigerating belt is arranged between the inner barrel and the outer barrel. The structure is simple, operation is convenient and rapid, combustible ice samples are stored effectively, the various states of the combustibleice samples are preserved, and scientific analyzing of the combustible ice samples is guaranteed.

The invention discloses an auxiliary heating drilling type freezing core-taking drilling tool and relates to the field of polar ice layer core taking and frozen soil core taking. The auxiliary heating drilling type freezing core-taking drilling tool is composed of a power source module, an auxiliary heating drilling freezing core-taking module and a regular drilling tool module. The power source module is used for supplying power to a semiconductor chilling plate of the auxiliary heating drilling freezing core-taking module, a hot source and a cold source are generated, the hot source heats drilling fluid for auxiliary drilling to enable an ice core to rapidly enter a rock core cylinder, and the cold source is used for refrigerating the rock core cylinder to ensure the ice core not to be melted in the rock core cylinder in the well drilling and drill lifting process and ensure core-taking integrity. The auxiliary heating drilling type freezing core-taking drilling tool is simple in structure and easy to produce and maintain; repeated utilization can be achieved, and using cost is low; through switching of the different modules, core-taking efficiency is improved and ensured; and only the heating effect is exerted on the annular section of a broken rock, environmental pollution is avoided, the natural state of a rock core can be kept to a largest extent, and the auxiliary heating drilling type freezing core-taking drilling tool has obvious effects on core taking under special conditions and rock core preservation.

The invention relates to an ice core borehole opening protection device. The ice core borehole opening protection device is structurally characterized in that the peripheral edges of a trough plate are bent downwards, and the trough plate is of a rectangular box-shaped structure and covers an ice core borehole; holes are formed in the four corners of the trough plate, and steel chisels pass through the holes to fix the trough plate to the glacier surface; a steel ring is fixed to the center of the trough plate and is opposite to the center of the borehole; a cap covers the steel ring; and a hole and a notch are formed in the cap, and when an ice core is drilled, a cable connected with a drill bit is placed in the hole through the notch. The structure is simple, the design is reasonable, blocking of the ice core borehole, damage to an ice core drilling machine and jamming of the ice core drilling machine due to the fact that tools fall into the ice core borehole in the ice core drillingprocess can be avoided effectively, it is guaranteed that ice core drilling work is conducted smoothly, and waste of manpower and material resources is reduced.

The invention relates to an ice core treatment cutting device. V-shaped groove bases are vertically fixed on a substrate at the bottom. Two V-shaped grooves are respectively erected and fixed on the two V-shaped groove bases at the bottom. A gap between the two V-shaped grooves and the two V-shaped groove bases at the bottom is a cutting seam for ice core cutting. The lower part of the cutting seam aligns at the upper part of the substrate. The upper edges of the two sides of the V-shaped grooves are used as scaleplates. Back parts of two sides of the two independent V-shaped grooves are respectively provided with LED board lamps. A disc cutting machine is fixed to one side of the V-shaped grooves. A cutting sheet is located above the cutting seam. An ice core is arranged in the V-shaped grooves. The device has a reasonable design and a compact structure, can accurately describe the physical parameters of the ice core during the pretreatment and accurately and vertically cut the ice core along a radial direction, effectively solves the problem of the easy dislocation of the ice core in the radial cutting and achieves the accuracy of ice core dating and high-resolution ice core recording and research.

The invention discloses an airborne rapid ice core activation counter which comprises a chamber, a refrigeration device, a sample introduction device, a closed circulation gas flow device and a laserion phase detection counter. The sample introduction device is arranged in a sample introduction control box, the closed circulation gas flow device is arranged in an airflow control box, the sample introduction control box, the airflow control box, the laser ion phase detection counter and the chamber are arranged at an upper left of a rear part of a rack, and the front part of the rack is provided with a refrigeration device, a power supply box and a computer control box from the bottom to top. The airborne rapid ice core activation counter is a miniaturized fast ice core activation countersuitable for airborne observation, the process from ice core generation to activation in an actual operation can be simulated, and the airborne rapid ice core activation counter has the advantages oflarge flow rate, short measurement period, the distinction of solid ice crystals, the measurement of ice crystal spectrum distribution, and ice crystal imaging.

The invention discloses a method for collecting and processing an ice core optical characteristic image. The method comprises the following steps: shooting a plurality of ice core photos; carrying outimage splicing on the plurality of ice core photos; and carrying out an optical analysis on the spliced panoramic ice core image. The method is characterized in that the step of carrying out image splicing is performed as follows: carrying out image preprocessing; to be specific, carrying out non-linear stretching on the ice core photos by using a histogram equalization method and allocating a pixel value again; carrying out image matched region positioning; to be specific, determining an overlapped region between each two photos and carrying out feature point extraction and registration; carrying out image feature extraction; to be specific, carrying out corner detection by using a FAST function; carrying out image feature matching; to be specific, using an Euclidean distance between twofeature point descriptors as a similarity criterion for feature point matching; and carrying out image fusion; to be specific, carrying out smooth image transition by means of weighted average fusionand then carrying out seamless splicing. According to the invention, in order to solve a problem of a few of ice core feature points, the method employs an improved image splicing method and thus anice core panorama is synthesized efficiently and rapidly.

The invention discloses an ice core drilling device. The ice core drilling device comprises an ice core barrel, a drilling mechanism and a control center, wherein the drilling mechanism is fixed on the bottom end side surface of the ice core barrel and comprises a drilling mechanism body, an electric heating wire and a heating head, the heating head is in sealing communication with the bottom end of the drilling mechanism body through multiple electric joints; the drilling mechanism body is circular and hollow inside, a sealing cover is arranged at the top of the drilling mechanism body, the heating head is annular, has an inverted-triangular section and is hollow inside, the inside of the connection position of the drilling mechanism body and the heating head is wound with the electric heating wire, and the electric heating wire and the electric joints are electrically connected with the control center. An ice core is sampled in an electric heating form, damage of mechanical drilling to the ice core is avoided, and the smoothness and the flatness of an ice core sample can be guaranteed; the direction of a drilling head is adjusted by means of the arranged electric joints, the section in preset depth is heated, and the ice core sample and an original ice layer are conveniently separated.