7 results about "Capillary inlet" patented technology

A cartridge 300 for capillary electrophoresis includes a housing which includes a base 202 at least partially defining a cavity 250 defining a cavity volume. A cover plate 304 that is secured to the base 202 defines a window. A volume displacement structure 360 projects from at least one of the base 202 and the cover plate 304 and into the cavity 250 when the cover plate is secured to the base. The volume displacement structure 360 and cavity 250 together at least partially define a coolant liquid flow path 366 having a coolant liquid flow path volume less than the cavity volume. A plurality of capillaries 326 is disposed in the coolant liquid flow path. Each of the plurality of capillaries includes a capillary inlet 222 and a capillary outlet 224 projecting from the base.

The proposed development is a rheometer device that simultaneously measures viscosity (μ) and yield strength (to) online, with measurements taken at intervals of a few minutes for mining slurries. Therefore, the design must withstand the typical conditions of a mining operation (extreme temperatures, high altitude, communication problems, distance, extreme humidity, theft, mishandling, etc.). The rheometer in this development is based on the laminar flow transport of the slurry through capillaries. This rheometer measures simultaneously in more than one capillary. The online measurement and data analysis system accounts for the effects of sedimentation, capillary or pipe wall effects, temporal effects (e.g., thixotropy and viscoelasticity), and capillary inlet effects.On the other hand, it considers losses due to changes in diameter, the oscillatory effects of the point generated by the peristaltic pump, and the overreactions generated when the speed changes. A method for operating the rheometer device is also presented.

The invention discloses a planetary atmospheric trace gas in-situ collection device and a detection device and method, and belongs to the field of space detection. The collecting device comprises an air inlet pipe, a filtering tank communicated with the air inlet pipe, an enriching tank communicated with the filtering tank and a first protective cover, an air inlet hole is formed in the first protective cover, and the air inlet pipe is matched with the air inlet hole; the air inlet pipe is a capillary pipe; and a pressure monitoring assembly is arranged on an enrichment pipeline for communicating the filtering tank with the enrichment tank. According to the collection device, through the arrangement of the gas inlet pipe of the capillary tube, stable pressure drop of gas entering the filtering tank is achieved, stable gas inlet is achieved, efficient filtering and impurity removal of inlet gas are achieved through the filtering tank, and efficient enrichment of target trace gas is further achieved through the enrichment tank.

The invention relates to a shale matrix two-phase flow simulation and relative permeability curve determination method and device, and belongs to the technical field of shale gas multiphase flow simulation. The invention discloses a shale matrix two-phase flow simulation and relative permeability curve determination method and device. The method comprises the following steps: measuring single-phase permeability of a target reservoir core under different effective stresses; extracting a PNM model based on the connected pores; simulating and calculating the radius of the deformed pores and throats in the PNM model under different effective stresses and the permeability after deformation, and fitting the single-phase permeability after deformation; updating the PNM model under different effective stresses; calculating capillary inlet pressure; and calculating the relative permeability in the PNM model under different effective stresses. The method can be used for gas-water two-phase flow simulation of the shale gas reservoir under variable stress, can also be used for stress sensitive simulation and analysis of various lithologic reservoirs such as compact sandstone and carbonate rock, and has wide application value in the aspects of shale gas development practice and recovery efficiency improvement.

The invention provides a micro-channel plate heat exchanger and a preparation method thereof. A first flow channel layer and a second flow channel layer are of a hand symmetry structure. Baffle through holes are formed in one pair of opposite angles of flow channel baffles of the flow channel layer, and capillary inlet and outlet areas are formed in the other pair of opposite angles. The two groups of capillary tube bundles are embedded in the tube bundle groove of the flow channel baffle in a central symmetry manner; two end ports of each group of capillary tube bundles are respectively positioned in diagonal capillary tube inlet and outlet areas; partition plate through holes are symmetrically formed in four corners of the metal partition plate; the first flow channel layers and the second flow channel layers are alternately stacked between the top plate and the bottom plate, a metal partition plate is arranged between every two flow channel layers, and metal partition plates are arranged on the inner side of the top plate and the inner side of the bottom plate. After the layers are fixedly connected, openings are formed in the four corners respectively and communicated with external pipelines. The tube box and the core body are integrally welded and formed, the flow of each flow channel is uniform, the size is compact, countercurrent flow heat exchange is achieved, the pressure bearing capacity is high, and the service life is long; the processing and manufacturing method is few in process, high in production efficiency and low in comprehensive cost.

The present application relates to a kind of shale matrix two-phase flow simulation and phase permeability curve determination method and device, belong to shale gas multiphase flow simulation technical field.The present application discloses a kind of shale matrix two-phase flow simulation and phase permeability curve determination method and device, comprising: the single-phase permeability of the target reservoir core under different effective stress is determined;PNM model is extracted based on connected pore;The radius of pore and throat after deformation in PNM model under different effective stress and the permeability after deformation are simulated and calculated, and the single-phase permeability after deformation is fitted;PNM model under different effective stress is updated;Capillary inlet pressure is calculated;Relative permeability in PNM model under different effective stress is calculated.The present application is used for the gas-water two-phase flow simulation of shale gas reservoir under variable stress, and also can be used for stress-sensitive simulation and analysis of dense sandstone and carbonate rock and other various lithology reservoirs, has wide application value in the aspect of shale gas development practice and enhanced recovery.

The application provides a refrigeration device and a control method of the refrigeration device. The refrigeration device comprises a refrigeration system and a storage chamber. The refrigeration system supplies cold to the storage chamber. The refrigeration system comprises a variable frequency compressor, a condenser, a capillary tube and an evaporator connected in sequence. The refrigeration system further comprises a heat exchanger. The heat exchanger comprises high-temperature heat exchange pipes and low-temperature heat exchange pipes which are arranged in parallel and exchange heat with each other. The inlet of the high-temperature heat exchange pipes is connected with the condenser, and the outlet thereof is connected with the capillary tube. The inlet of the low-temperature heat exchange pipes is connected with the evaporator, and the outlet thereof is connected with the gas return port of the variable frequency compressor. The refrigeration system of the application exchanges heat through the high-temperature heat exchange pipes and the low-temperature heat exchange pipes, so that the refrigerant is first subjected to primary heat exchange and cooling before entering the evaporator, and is first subjected to heat exchange and heating before entering the variable frequency compressor. Therefore, the pressure between the outlet of the variable frequency compressor and the inlet of the capillary tube can be controlled within the range that can be borne by the variable frequency compressor when the refrigeration system is stably operated, and the low-temperature refrigeration below-40 DEG C can be realized.