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72results about How to "Avoid bottoming" patented technology

Lowered acoustic Doppler current profiler with acoustic telemonitoring function

InactiveCN101644716ALower requirementThe main LADCP measurement flow will not be affectedFluid speed measurementAcoustic wave reradiationCode division multiple accessFiltration
The invention relates to a lowered acoustic Doppler current profiler (LADCP) with an acoustic telemonitoring function, wherein, an underwater acoustic communication technology is adopted to transmit the data of depth and height from the bottom of an LADCP suspension system in real time to a water surface control unit by code and decode with code division multiple access for monitoring the positionin water of the suspension system in real time. The lowered acoustic Doppler current profiler comprises an underwater main body part and a water surface telemonitoring part; a master LADCP is internally provided with a communication encoding module, wherein, the master LADCP circularly measures a current profile at fixed time and obtains the height to the bottom according a bottom tracking resultand a depth value by a pressure sensor at the same time; the communication encoding module carries out CDMA code modulation on the height value and the depth value and then outputs the values by a high-speed DA every 1-10s or so, preferably 5s, and emits out the values through a watertight cable and an underwater acoustic communication transmitter; and the underwater acoustic communication transmitter at a water surface telemonitoring part carries out amplification, automatic gain control and filtration on the received signal and then sends the signal to a deck unit through a Kevlar cable.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Traditional Chinese medicine preparation boiling and decoction machine

The invention discloses a traditional Chinese medicine preparation boiling and decoction machine, which comprises a medicine container, a medicine decorating tube and a vacuum heating cavity, wherein the medicine decorating tube is integrally arranged on the top of the medicine container; the bottom of the medicine decorating tube is communicated with an inner cavity; the medicine decorating tube comprises an outer tube body, an upper cover, a secondary filtering screen, a primary filtering screen and an inner tube; the upper cover is separably and fixedly arranged on the top of the outer tube body; the secondary filtering screen and the primary filtering screen are separately arranged above a bottom plate of the outer tube body from bottom to top; the inner tube is in coaxial arrangement with the outer tube body; the upper side and the lower side of the inner tube are provided with openings; the side wall of the inner tube is provided with sieve holes, wherein the center of the bottom plate is provided with a liquid discharge hole; the bottom of the inner tube is fixedly connected with a hole plate; a stirring shaft is arranged in the center of the inner tube; the bottom of the stirring shaft is rotationally connected with the hole plate; the center part inside the upper cover is fixedly provided with a stirring motor; the stirring motor and the stirring shaft are in separable transmission connection. The automatic medicine decoction machine is divided into the inner tube and an outer tube. Medical materials are charged into the inner tube; water is added for infiltration heating; medicine liquid can be separated to the outer tube to form practical slag medicine separation; a secondary filtering function is realized, so that the medicine liquid is purer.
Owner:李悦

Large sample-loading amount multifunctional deep sea environment sample frame, test device and test method

The invention provides a large sample-loading amount multifunctional deep sea environment sample frame, a test device and a test method. The design of the sample frame meets requirements of simultaneously performing deep sea environment corrosion aging tests of plenty of materials at a specific depth. The number of standard samples capable of being loaded is 300 to 600, and environment tests of components and simulation parts can be carried out. Modularized design is adopted for material corrosion standard sample installation, and samples first form a sample string and then are fixed to the sample frame, so as to achieve effects of facilitating on-site installation and sampling. Corresponding tool clamps can be designed for non-standard samples according to shapes (pipe fittings, flanges and spheres and the like). The device can simultaneously carry out corrosion aging tests of plenty of materials and components and is high in test efficiency. Environment testing devices are integrated, so that more environment parameter data can be obtained. Modularized design is adopted for sample assembly, installation and replacement operations during marine operation are facilitated, laying time is reduced, and marine test safety is improved.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Damper damping mechanism and hydraulic-pneumatic combined damping damper applied same

PendingCN108488293ASolve the problem of shockImproved rebound damping effectSpringsGas and liquid based dampersPiston ringReciprocating motion
The invention discloses a damper damping mechanism and a hydraulic-pneumatic combined damping damper applied same, and belongs to the field of dampers. The damper damping mechanism is characterized inthat in a downward pressing moment, part of the damping medium flows from a small hole to a large hole to generate downward-pressure damping, the part of the damping medium flows through a gap between a damping piston and a handle pipe, the part of the damping medium flows into the large hole through a sawtooth notch through a groove of the outer side wall of a piston ring, and the problem that the shock feeling is generated instantly when the damper is pressed down is effectively solved; and in the rebound process, a piston seal ring expands outwards to seal the gap between the damping piston and the handle pipe, the rebound damping effect is improved, especially in a road condition continuous bumpy environment, the motion stroke of the damper is long, in addition, the reciprocating motion of higher frequency is needed, and the damping effect is more prominent. According to the damper damping mechanism and the hydraulic-pneumatic combined damping damper applied the same, a sealing air pressure cavity is formed by guiding and sealing between a handle pipe and a sleeve pipe, so that the lower pressure collision bottom of the damper is prevented, and the hydraulic-pneumatic combineddamping effect is achieved.
Owner:常州市达文电动车辆配件厂

Preparation method for gemcitabine hydrochloride lyophilized preparation for injection

The invention discloses a preparation method for a gemcitabine hydrochloride lyophilized preparation for injection, comprising the following steps: step A of pre-cooling: reducing temperature of gemcitabine hydrochloride solution to negative 12-negative 14 degrees centigrade at the first, then reducing temperature of a heat transfer oil to negative 20 degrees centigrade at a speed of 1 degree centigrade per 10 minutes, keeping the temperature for 2-3 h, after temperature of products is reduced to negative 16-negative 20 degrees centigrade, fast reducing temperature to negative 38-negative 42 degrees centigrade, and keeping temperature for 4-5 h; step B of sublimating a drying step: vacuumizing to 7-12 Pa in a box body, heating the heat transfer oil at the speed of 1-2 degrees centigrade per hour, when the temperature of the heat transfer oil is increased to 0 degree centigrade, keeping the temperature, wherein total time is not less than 30 h, temperature difference of the sample and the heat transfer oil is less than 22 degrees centigrade; step C of analyzing and drying step: heating the heat transfer oil at the speed of 1 degree centigrade per 10 minutes, increasing the temperature of products to 38-42 degrees centigrade and keeping the temperature for 3-5 h. The lyophilized preparation prepared by the invention is featured with sponginess, reliable quality, fast re-dissolving property and good clarity.
Owner:湖北一半天制药有限公司

Composite supporting system for coal mine rectangular gate roadway during pressure bump based on strong-releasing and strong-supporting theory

The invention discloses a composite supporting system for a coal mine rectangular gate roadway during pressure bump based on the strong-releasing and strong-supporting theory. The composite supportingsystem comprises a roof supporting system used for supporting a gate roadway roof, a side supporting system used for supporting the two sides of the gate roadway and a pressure-releasing groove formed in a floor of the gate roadway. The roof supporting system comprises a plurality of roof short anchor cables and energy absorption pieces; every two adjacent roof short anchor cables extending in the length direction of the gate roadway are connected through roof U-shaped channel steel, and roof pressure-releasing holes are formed in the roof; the side supporting system comprises a plurality ofside short anchor cables and energy absorption pieces; and every two adjacent side short anchor cables arranged in the height direction of the sides are connected through side U-shaped channel steel,and side pressure-releasing holes are formed in the two sides of the gate roadway correspondingly. The composite supporting system adopts the principles of strong-releasing and strong-supporting as well as shock absorption and energy absorption, overall deformation of the roadway can be effectively restrained, harm to personnel and equipment can be reduced when pressure bump occurs, and meanwhilefloor heave of the roadway is effectively restrained.
Owner:XIAN UNIV OF SCI & TECH

Preparation method of injection-use oxaliplatin freeze-dried preparation

The invention discloses a preparation method of an injection-use oxaliplatin freeze-dried preparation. The method comprises the steps that: A, pre-freezing is carried out, wherein a quick-freezing process is adopted; a freeze-drying cabinet is cooled to -5 DEG C to -10 DEG C; when a sample is delivered into the cabinet, heat-conduction oil temperature is rapidly set as -45 DEG C; and when the temperature of the product is consistent with that of the heat-conduction oil, the temperature is maintained for 3-4h; B, sublimation-drying is carried out, wherein the temperature of the heat-conduction oil is rapidly increased to -10 DEG C with a speed of 1 DEG C/5min; when the temperature of the product is similar to that of the heat-conduction oil, the temperature of the heat-conduction oil is rapidly increased to 0 DEG C with a speed of 2 DEG C/5min; when the temperature of the product reaches 0 DEG C, sublimation-drying is finished, wherein a total time of the process is no shorter than 15h; C, vacuum-drying is carried out, wherein the heat-conduction oil is heated with a speed of 2 DEG C/5min; the temperature of the product is increased to 30+/-2 DEG C, and the temperature is maintained for 2-4h; and D, a nitrogen filling treatment is carried out, wherein nitrogen is filled under a vacuum state; the preparation is plugged, and is fetched from the cabinet. The freeze-dried preparation provided by the invention has the characteristics such as loose product, stable quality, fast re-dissolving, and good clarification degree.
Owner:湖北一半天制药有限公司

Constant-pressure self-moving type advanced-support hydraulic support

The invention relates to a constant-pressure self-moving type advanced-support hydraulic support. The constant-pressure self-moving type advanced-support hydraulic support is composed of an inner beam, outer beams, transverse beam assemblies a, hinge structures a, hydraulic supports, support bases, transverse beam assemblies b, connecting and supporting transverse beams, supporting transverse beams, an advancing jack and hinge structures b. According to the constant-pressure self-moving type advanced-support hydraulic support, the two outer beams and one inner beam support and contact a top plate; the tops of the supports are correspondingly connected with the connecting and supporting transverse beams and the lower parts of the supporting beams through the hinge structures a; the two outer beams are welded into a U-shaped whole through the transverse beam assemblies a at the two ends of the connecting and supporting transverse beams; the inner beam is welded into an inverted-T-shapedwhole through the transverse beam assemblies b on the middle parts of the supporting transverse beams; and the connecting and supporting transverse beams and the supporting transverse beams are correspondingly connected with the two ends of the advancing jack through the hinge structures b. During the advanced-support process, the constant-pressure self-moving type advanced-support hydraulic support can automatically move the support and lift the support under the condition of constant pressure, and the problems of inclination of the support, pressing of the support, drilling to the bottom andthe like are avoided; and the structure is simple, the operation is convenient, the support moving efficiency is high, the stability is high, and the safety is high.
Owner:河南焦煤能源有限公司古汉山矿 +2

Food processor and cooking control method and device thereof

The invention discloses a food processor and cooking control method and device thereof, the method comprising the steps of: detecting a zero-crossing signal of an alternating current input to a motor;acquiring a zero-crossing point of the alternating current according to the zero-crossing signal, and after the zero-crossing point is delayed for a first preset time, outputting an opening pulse signal to a thyristor module, and outputting an openning pulse signal to the thyristor module every second preset time; detecting a magnetic field conversion signal provided by a magnetic ring so as to output an alternating level signal, and obtaining a rotation speed of the motor by using a periodic speed measurement method according to the alternating level signal; and adjusting the first preset time according to the rotation speed of the motor to control the motor to rotate in a low speed and high torque mode at constant speed so as to drive a stirring piece to stir the cooked food in a cooking process of the food processor. According to the invention, by changing the on-time of the motor thyristor module, the motor is allowed to run at a constant speed with low speed and high torque, so food can be stirred in the cooking process and the food processor is prevented from suffering from a phenomenon of overcooking of the bottom.
Owner:GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO LTD

Preparation method of injection-use oxaliplatin freeze-dried preparation

The invention discloses a preparation method of an injection-use oxaliplatin freeze-dried preparation. The method comprises the steps that: A, pre-freezing is carried out, wherein a quick-freezing process is adopted; a freeze-drying cabinet is cooled to -5 DEG C to -10 DEG C; when a sample is delivered into the cabinet, heat-conduction oil temperature is rapidly set as -45 DEG C; and when the temperature of the product is consistent with that of the heat-conduction oil, the temperature is maintained for 3-4h; B, sublimation-drying is carried out, wherein the temperature of the heat-conduction oil is rapidly increased to -10 DEG C with a speed of 1 DEG C / 5min; when the temperature of the product is similar to that of the heat-conduction oil, the temperature of the heat-conduction oil is rapidly increased to 0 DEG C with a speed of 2 DEG C / 5min; when the temperature of the product reaches 0 DEG C, sublimation-drying is finished, wherein a total time of the process is no shorter than 15h; C, vacuum-drying is carried out, wherein the heat-conduction oil is heated with a speed of 2 DEG C / 5min; the temperature of the product is increased to 30+ / -2 DEG C, and the temperature is maintained for 2-4h; and D, a nitrogen filling treatment is carried out, wherein nitrogen is filled under a vacuum state; the preparation is plugged, and is fetched from the cabinet. The freeze-dried preparation provided by the invention has the characteristics such as loose product, stable quality, fast re-dissolving, and good clarification degree.
Owner:湖北一半天制药有限公司

Electric water pump with efficient heat dissipation and vibration reduction structure

The invention relates to an electric water pump with an efficient heat dissipation and vibration reduction structure. The electric water pump comprises a rear cover, a rear cover sealing ring, a waterpump controller, a coil connecting terminal, a stator coil sheath, a coil, a motor stator, a motor shell, an inner cover, a water pump volute, a water pump impeller, a motor rotor shaft, an axial thrust wheel, a rotor front bearing, a rotor front bearing vibration reduction ring, a bearing seat, a motor rotor, an inner cover small-head sealing ring, a rotor rear bearing vibration reduction ring,a rotor rear bearing, an axial-flow-type guide impeller, a breathing device bracket, a gas-permeable membrane, a breathing device sealing ring and an elastic cylindrical pin. According to the electricwater pump with the efficient heat dissipation and vibration reduction structure, a multistage vibration reduction structure is adopted to restrain vibration of the electric water pump to the minimum, through an internal water-cooling system, a structure for improving coil heat dissipation on a motor stator and the cooperation between breathing and cooling of breathing out inner cavity hot air from a breathing system to suck in external cold air, thermal loads of the electric water pump are restrained, the heat dissipation efficiency is greatly enhanced, and high operational reliability of the electric water pump is improved.
Owner:GUANGDONG JUNCHI TECH HLDG

Packaging and stacking dedicated pallet

The invention discloses a packaging and stacking dedicated pallet which aims at stacking entire goods on the pallet on a stacking at a time, avoiding second-time handling and boxing by hand and increasing the loading efficiency. One ends of an upper pallet plate and a lower pallet plate are hinged through a hinge pin, and the other ends are connected through an adjustable supporting mechanism. The adjustable supporting mechanism comprises an oil tank, an oil cylinder, two four-way change valves, a manual oil pump, a lower driving adjustable support rod, an upper driving adjustable support rod and a rack, wherein the oil cylinder is provided with a piston moving along the width direction of the lower pallet plate, and a piston rod connected with the piston is fixedly connected with the rack; the rack is arranged on the upper surface of the lower pallet plate along the width direction of the lower pallet plate; and the lower end of the lower driving adjustable support rod is provided with an incomplete gear engaged with the rack, the other end of the lower driving adjustable support rod is hinged with one end of the upper driving adjustable support rod through an adjustable hinge pin, and the other end of the upper driving adjustable support rod is hinged with the upper pallet plate. The pallet can reduce the labor intensity of workers, and thus, the loading efficiency is increased.
Owner:TIANJIN UNIV OF COMMERCE
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