30 results about "Tube number" patented technology

The invention provides a parallel flow heat exchanger, comprising liquid collecting tubes (2, 6), a plurality of flat tubes (3) which are connected between the liquid collecting tubes (2, 6) and communicated with the inner cavities of the liquid collecting tubes (2, 6), fins (5) positioned between flat tubes (3) and clapboards (4) which are arranged inside the liquid collecting tubes (2, 6) to divide the liquid collecting tubes (2, 6) into a plurality of sealed cavities. Connecting tubes (1, 1') are connected with the liquid collecting tubes (2, 6). A throttling device which can change the flow and the flat tube numbers of each flow is arranged at least between two cavities of the liquid collecting tubes. The heat exchanger can regulate the composing proportion of the gas and liquid cooling work mediums so as to realize the regulation of the heat exchanging work states of the heat exchanger, or can form cooling mediums which flows in the heat exchanger to realize the right-direction and reverse-direction flow characteristics so as to adapt to the application of the heat exchanger in the heat pump system and to realize the excellent efficiency balance of cooling and heating and to lead the heat exchanger to perform the biggest benefit.

The invention provides a method for characterizing fracture-cavern type reservoir water-drive recovery effects, and relates to the field of fracture-cavern type reservoir recovery technologies. The method includes acquiring reservoir displacement pressure difference, water and oil density difference, local gravitational acceleration of reservoirs and reservoir thicknesses in fracture-cavern type reservoir recovery time; determining gravitational dimensionless numbers corresponding to the fracture-cavern type reservoir recovery time according to the reservoir displacement pressure difference, the water and oil density difference, the local gravitational acceleration of the reservoirs and the reservoir thicknesses; determining reservoir recovery ratios corresponding to the fracture-cavern type reservoir recovery time; determining relation curves of gravitational dimensionless numbers and reservoir recovery ratios according to the gravitational dimensionless numbers and the reservoir recovery ratios corresponding to the fracture-cavern type reservoir recovery time; determining the gravitational dimensionless numbers under the conditions of maximum reservoir recovery ratios according to the relation curves. The method has the advantage that problems of deficiency of methods for characterizing fracture-cavern type reservoir water-drive recovery effects at present and inapplicability of capillary tube numbers of the traditional sandstone reservoirs to evaluating fracture-cavern type reservoir recovery effects can be solved by the aid of the method.

The invention provides a multitubular fixed bed reactor which is characterized in that the reactor comprises a first sealing head, a second sealing head, and a housing, wherein at least one partition plate is disposed in the housing to partition the reactor into at least two sections along an axial direction of the housing; a cooling medium inlet and a cooling medium outlet are disposed on the housing outside each section of the reactor; the tube number of each section of the reactor decreases orderly away from the second sealing head along the axial direction of the housing, and the tube diameters of the tubes increase orderly. The invention also provides a coal bed methane deoxidation method performed in the multitubular fixed bed reactor. Compared with various equipment improvement in the prior art, the multitubular fixed bed reactor of the invention is simple in structure, and low in preparation difficulty. In addition, the method of the invention not only ensures the coal bed methane deoxidation effect, eliminates hot spots in the reactor, but also ensures the processing capacity of the process.

The invention discloses a stepping transferring and carrying system, which belongs to the technical field of solar vacuum tube clip installation. The stepping transferring and carrying system comprises a tube number control device, a transferring and carrying device, a first side conveying belt and a second side conveying belt, the tube number control device is used for controlling the number of tubes and comprises an obliquely arranged tube carrying platform, a first liftable baffle plate and a second liftable baffle plate, the first liftable baffle plate and the second liftable baffle plate are positioned on the tube carrying platform and are arranged side by side at intervals, a gap between the first baffle plate and the second baffle plate is larger than the diameter of each vacuum tube and smaller than 1.5 times of the diameter of each vacuum tube, and a first light sensor for sensing the vacuum tubes is arranged between the first baffle plate and the second baffle plate. The stepping transferring and carrying system is capable of conveying the vacuum tubes into designated positions, so that clips can be accurately mounted in the vacuum tubes.

The invention provides an evaporation concentration device. In the invention, a plurality of heat transfer tubes with external diameter of 15mm-26mm are divided into a plurality of heat transfer tube groups in a closed evaporating pot, and the number of the tubes in the heat transfer tube groups sequentially is decreased or increased along the upward direction; heating steam sequentially flows from the heat transfer tube group with the maximum tube number to those with less tube numbers; and a supply dispersion quantity of solution in the heat transfer tube group per horizontal projection area is 10m<3>/h/m<2>-60m<3>/h/m<2>.

The invention discloses a method for intelligently tracking tube numbers in a circulating process of a steel tube production line, which comprises the following steps of establishing a database, marking tags, collecting information, processing roller way and buffer area signals, recognizing existence of a steel tube on roller ways, recognizing information that the steel tube is moved from one roller way to another, from the roller way to an area, from the area to the roller way, and the like, and transmitting the information to an upper computer; and binding signals. According to the invention, the tube numbers of the steel tubes are collected into a system through information collecting points, then the steel tube numbers are bound to the steel tubes, and the action signals for entering and exiting from roller ways and the areas are displayed through the upper computer, so that the steel tubes are accurately and visually positioned according to the tube numbers, the number of recognition points is reduced, and the efficiency is improved.

The invention discloses a paper tube classified storage device. The paper tube classified storage device comprises a support base plate; support rods are arranged on the two sides of the upper end surface of the support base plate; more than one paper tube storage units are arranged between the two support rods in the vertical direction; the paper tube storage units comprise rope belts, arc papertube storage baseplates and two fixed pieces; the two fixed pieces are marked as first fixed pieces and second fixed pieces; the two fixed pieces are arranged at the two ends of the paper tube storagebaseplates; the support rods penetrate through positioning through holes formed in the fixed pieces; the fixed pieces are supported on first positioning screw sleeves; the first positioning screw sleeves are connected with the support rods through threads; one ends of the rope belts are connected to the first fixed pieces; and the other ends of the rope belts are connected to second positioning screw sleeves. The paper tube classified storage device is high in paper tube storage quantity, can determine the number of the paper tube storage units according to the paper tube number by people, and is convenient to use.

The invention discloses a method for intelligently tracking tube numbers in the circulating process of a steel tube production line. The method includes the following steps that areas are obtained through division, and a database is established; information is recorded; signals are recognized; tracking and positioning are performed, and actions of steel tubes correspond to corresponding data processing steps, so that circulating of the steel tubes on the production line with the corresponding tube numbers is tracked and positioned. The tube numbers of the steel tubes are collected into a system through information collecting points, then the steel tube numbers are bound to the steel tubes, and the action signals for entering and exiting from roller ways and the areas are displayed through an upper computer, so that the steel tubes are accurately and visually positioned according to the tube numbers, the number of recognition points is reduced, and efficiency is improved.

The invention relates to a tube packaging group and tube containing structure. The tube containing structure includes at least two supporting elements and one cushioning element; each supporting element is installed in side by side, and is equipped with a first calking groove respectively; the cushioning element is installed crossly with supporting elements, and is embedded in the first calking groove. The tube packaging group includes: a box body; and a tube containing structure installed in the box body, it includes two supporting elements and one cushioning element; said supporting elements is installed relatively and equipped with a first calking groove; the cushioning element is installed crossly with supporting elements and is embedded in the first calking groove. The invention has advantages of convenient packaging, cost saving, more containing tubes number and tube is broken difficultly, it is very suitable for practical application.

The invention discloses a DNA library quantifying and sequencing method. The method comprises the steps that step 1, preparation of processing a sheet, a sample and a reagent is performed; step 2, a 1.5-milliliter low-adsorption tube is prepared, 499 microliter of NF water is added, and number and NF water volume are verified; a melt sample is vibrated, evenly mixed and transiently centrifuged tothe bottom of the tube, 1 microliter of sample is added into 499 microliter of NF water, tube number is verified, the diluted sample is vibrated, evenly mixed and transiently centrifuged; MIX is prepared on an ice box, 18 microliter of MIX is put into a 0.2-milliliter PCR plate placed on a metal ice box; number is verified, 2 microliter of sample is extracted and put into 18 microliter of MIX; after film sealing is carried out, centrifugation is carried out, and detection is performed in a PCR instrument; step 3, according to a quantifying detection result in step 2, an instrument-on sheet ismade, and emulsion PCR is carried out; step 4, OT instrument-off processing is carried out; and step 6, instrument-on sequencing is carried out. The DNA library quantifying and sequencing method has the advantages that the operation is simple, convenient and flexible, the sequencing cost is reduced, the sequencing processes are reduced, the labor efficiency is improved, the processes are scientific, the standard is clear, and the practical operation effect is good.

The invention relates to a programmable circuit based on a memristor/a metal-oxide-semiconductor field-effect transistor (MOSFET) and a realization method of the programmable circuit. Through using the memiristor and a metal oxide semiconductor (MOS) tube in a combining manner, a programming voltage can generate a stable current which changes the resistance of the memiristor, the changeability and nonvolatility of the resistance of the memirstor are brought into play, and a programming effect is achieved. By the method disclosed by the invention, a memiristor model is successfully built in simulation program with integrated circuit emphasis (SPICE) software, the programmable circuit based on the memristor is put forward by using the model, and simulation validation is performed for the whole circuit. The programmable circuit combined by the memiristor and the MOS tube is simple in structure, small in tube number, high in integration level, and in favor of further developing integrated circuits to nanoscale.

The invention relates to a number tube printing bracket, which includes a bracket body and a support rod, at least one end of the support rod is positioned on the bracket body, and the outer diameter of the support rod is suitable for passing through the printed number tube The winding core of the material disk; the two ends of the support rod are provided with limiting parts, and the limiting parts are used to limit the displacement of the placed material disk along the axial direction of the support rod. The printing bracket solves the problem that the number tubes are easily entangled and knotted during the printing process by placing the material tray carrying the number tubes on the bracket cross bar and restricting its displacement. It is conducive to realizing fast and efficient number tube printing, and also reduces the probability of waste products.

The invention relates to a number marking and number tube penetrating mechanism of a double-pressing double-penetrating cable marker. The number marking and number tube penetrating mechanism comprisesa number tube cutting and number marking device, a number tube moving device and a number tube dialing device; the number tube cutting and number marking device comprises a number tube conveying channel and a number tube conveying wheel providing forwarding power for the number tube, a number tube number marking head, a number tube cutter and a number tube cutter driver for driving the number tube cutter to cut a number tube are arranged in front of the number tube conveying channel, and a band supply system for providing a thermal transfer color band for the number tube number marking head is arranged beside the number tube number marking head. The mechanism has the advantages that (1) a thermal transfer number coding manner is used in the whole mechanism, numbers on the number tubes areclear, and the mechanism is suitable for printing of different types of number tubes; and 2) the number tube sleeves on a cable in an exquisite way, the number tube sleeving stability is high, and the speed is high.

The invention designs a security control method for a multi-tube emission system. The method comprises: whether an emission activity occurs currently is determined; if not, a master controller of a multi-tube emission system selects a tube randomly and sends a tube number and an emission instruction to an emission controller; if so, the master controller of the multi-tube emission system calculates distances between an emission tube and all selectable tubes and sorts the distances in a descending order; interference characteristics between the emission tube and all selectable tubes are determined, attribute assignment is carried out on all selectable tubes based on the interference characteristics, and the master controller of the multi-tube emission system determines an optimal emission tube pipe according to a certain tube selection strategy; and the master controller of the multi-tube emission system determines emission order time of the selected tube numbers based on the differences of the interference characteristics and transmits the optimal emission tube number and the emission order time data to the emission controller. According to the invention, the emission rate of the system can be increased to the greatest extent and the system is also suitable for various launchers automatically.

The invention relates to the technical field of cosmetics, in particular to a composition and application of the composition to preparing fatigue relieving cosmetics. The composition and the application have the advantages that extract components of diversified plants are compounded with one another to form the composition, accordingly, generation of tyrosinase can be obviously inhibited by the formed composition, microcirculation can be improved, and excellent anti-oxidation effects can be realized by the composition; as shown by detection, the tube numbers and the blood flow and velocities of human subjects can be obviously changed after the cosmetics prepared from the composition are used, various indexes can be effectively improved, the tube numbers can be increased, the input/output branch tube diameters, top diameters and tube lengths can be increased, and the blood velocities can be obviously increased; the sharpness of tubes can be improved along with prolonging of the eye maskclinging time of the human subjects, blood colors can be darkened, the input/output branch tube diameters can be expanded, and the microcirculation of the human subjects can be improved to a certainextent.

The invention discloses a flexible mechanical arm holding device. The holding device comprises a power station, a fixed wallboard, a first memory module, a first flexible arm structure, a second flexible arm structure and a second memory module, wherein the power station is arranged below the fixed wallboard, flexible joints are hinged to the inner part of a flexible arm fixing seat, the first memory module is fixed on the right side of the fixed wallboard, a pipe hole is formed in the fixed wallboard, and a holding pipe is arranged in the pipe hole; the inner section of the power station comprises an oil pump, a second linkage rod filter and a total electromagnetic valve set, and the total electromagnetic valve set is connected with an oil cylinder electromagnetic valve set inside the first memory module through a pipeline. According to the flexible mechanical arm holding device, when a pipe diameter needs to be replaced, only a corresponding tube number or memory symbol needs to be input on a computer, an articulated type octopus arm can be adjusted to a corresponding tube diameter, and the problem of manually adjusting a half mechanism when changing the pipe diameter of the heatpreservation pipe is solved.