193results about How to "Increase return speed" patented technology

The invention relates to a well drilling method of a through tubing of a gas lift under-balanced coiled tubing, which is applied in the technical field of petroleum well drilling. The through tubing operation way of the coiled tubing is adopted for carrying out under-balanced well drilling or low-pressure well drilling on target well sections at the lower part in a shaft with a drilled upper borehole, wherein the target well sections are a vertical well, a directional well or a horizontal well. The method has the following effects: the adoption of the through tubing operation of the coiled tubing can form three circulation channels by utilizing the coiled tubing, an oil tube and a sleeve, and a matching pipe column has good universality, does not need a special drilling column or an inner tube and does not need to use a rotary blowout preventer and other special equipment; a gas injection channel and a slurry injection channel are independent mutually, thereby being capable of more conveniently controlling the well bottom pressure and the under-pressure value and using an underground power drilling tool and a slurry pulse measurement system which are applicable to slurry well drilling to carry out well drilling operation and trajectory control; and the method does not need to be connected with a single and can keep the continuous circulation during the tripping process and the drilling process, and realize the full-process controllable under-balanced well drilling operation and the full-process controllable low-pressure well drilling operation.

An apparatus for folding box blanks into completed boxes includes a feeding station having a swing guide assembly designed to provide an abutting surface which makes contact with flaps/panels of the box blank as the box blank is feed from the feeding station into a folding station. The swing guide assembly can be synchronized with a feed assembly which moves box blanks from a hopper assembly to a first feed position. Actuating drives operating at different speeds can be used to move the box blanks from the feeding station to a first and second folding station. Critical actuating motions used in the process of folding and advancing the box blanks can be performed at a different speed than other non-critical actuating motions.

The invention discloses a soaking plate comprising an evaporation plate, a condensation plate and a connecting plate. The evaporation plate directly faces the condensation plate. The connecting plateis used for connecting the evaporation plate with the condensation plate so as to form a closed cavity, and the closed cavity is filled with a working medium. The evaporation plate is provided with channels for conveying the working medium, and the channels are distributed in the circumferential direction of the evaporation plate and are divergent from the center to the edge of the evaporation plate. According to the soaking plate, the evaporation plate and the condensation plate are provided with bionic vein polygon micro-channel structures, the wall faces of the channels of the evaporation plate and the periphery of support columns are covered with lyophilic liquid sucking cores, thus the wall faces have lyophilic performance, capillary performance of the channel liquid sucking cores isimproved, and liquid sucking speed of the channel liquid sucking cores is increased. The wall faces of the channels of the evaporation plate and the periphery of the support columns are covered with lyophilic materials, liquid spreading is achieved progressively from the edge to the center of the condensation plate, the downward circulation speed of the working medium in main channels is increased, a working medium backflow path is shortened, working medium backflow speed is increased, and heat dissipation benefits are increased.

The invention provides a query method for distributed deployed heterogeneous database. The query method includes the following steps: receiving a database query request of an application program; determining a query type of this database query according to query information; determining if the query request is a primary request or not according to the query information; starting up a first thread corresponding to each query module of a query module set if so, and allowing each first thread to call a query interface of the corresponding query module to query data according to the query type; dividing query results of all the first thread according to the query module to which the first threads belong, and determining a result set according the dividing result; and acquiring a preset number of query results from the result set and sending the preset number of query results to the application program according to the query type. The query method can solve the problem of high load and high concurrency of the conventional data query system, improve the return speed of the query results, and then enhance the stability and the query efficiency of the system.

There is provided a sports skills training device comprising a waist belt, a first elastic member and a second elastic member, in which a first end of the first elastic member is attached to the waist belt and a second end of the first elastic member is arranged for removable engagement, in use, with a first limb of the wearer of the device; a first end of the second elastic member is attached to the waist belt and a second end of the second elastic member is arranged for removable engagement, in use, with a second limb of the wearer of the device; and, the waist belt further includes means to restrain the waist belt in use against displacement under tension in the first and/or second elastic members. There are further provided uses of the device and methods comprising use of the device.

This invention discloses a radiating device, which can be a uniform heat cavity combined with any heating components. The device includes a closed cavity and a capillary structure formed on the inside wall of said cavity, in which, said capillary structure includes multiple grooves formed on the inside wall of the cavity and porous powder sintered under high temperature on the inside wall , thus the radiating device has good capillary force of sintered capillary structure and penetrability of groove structure to speed up the radiation backflow of the working liquid and increase the radiation efficiency of the device.

The invention relates to a rock debris cleaning device for a drilling tool. The rock debris cleaning device for the drilling tool consists of a body, a rotating speed increaser and reaming protectors, wherein the body is a round steel pipe; an upper reaming protector, the rotating speed increaser and a lower reaming protector are arranged on an outer wall of the body; the rotating speed increaser is positioned between the upper reaming protector and the lower reaming protector; the rotating speed increaser consists of spiral blades and a debris discharging groove; the spiral blades are uniformly distributed by equal central angles; the upper reaming protector and the lower reaming protector consist of spiral protection blades which are uniformly distributed by equal central angles; a curved debris discharging groove is formed among the spiral protection blades; and a spiral angle of the rotating speed increaser, a spiral angle of the upper reaming protector and a spiral angle of the lower reaming protector are equal to one another. The rotating speed increaser can be protected by the reaming protectors, the wear of uneven walls of the well on the rotating speed increaser is reduced, even if the drilling tool is bent or buckled, the collision between the rotating speed increaser and the walls of the well also can be reduced, and the service life of the tool is prolonged.

A method of processing slops including production of biogas characterized in that slops are exposed to anaerobic fermentation in a anaerobic fermenter under generation of biogas and at least a portion of the biogas containing methane and carbon dioxide is fed into a first photo-bioreactor, where the carbon dioxide or a part thereof is consumed during a photosynthesis process producing micro-algae and methane and the residual carbon dioxide are hen withdrawn for further processing.

The invention discloses a heat-pipe type ice-storing ice-melting cold-accumulating device and an ice-storing cold-accumulating air conditioner. The heat-pipe type ice-storing ice-melting cold-accumulating device is characterized in that an ice-storing box and a secondary refrigerant box of the heat-pipe type ice-storing ice-melting cold-accumulating device are vertically arranged in a box body upand down, the secondary refrigerant box is provided with a liquid inlet and a liquid outlet, and the ice-storing box is filled with water; multiple heat pipes pass through a partition plate so as to be evenly arranged in the ice-storing box and the secondary refrigerant box, and heat transfer materials are arranged in the ice-storing box and the secondary refrigerant box; a corrugated plate or foamed metal is utilized as the heat transfer materials, a heat pipe is a cylindrical hollow circular pipe with two enclosed ends, and the internal surface of the hollow circular pipe is provided with multiple trapezoidal groove channels; and the depth of each trapezoidal groove is 0.5-1mm, and the hollow inner diameter of the heat pipe is 25-75mm. Compared with the prior art, the device provided bythe invention has the advantages that the heat transfer efficiency is improved, and the flow resistance of the secondary refrigerant is small; and the heat transfer effect of the added corrugated plate or the foamed metal is improved; and the liquid in an ice-storing section exists in a brash ice mode, the phenomenon of overlong ice melting time is avoided, the corrugated plate or the foamed metal is utilized to improve the heat transfer efficiency.

The invention relates to a wave energy resonance high-negative-ionizing meridian point air therapy adhesive tape which is characterized in that rubber or plastic is doped with far infrared nano powder, negative ion nano powder and magnetic nano powder on one side of the adhesive tape to be blended into a material, and then, one 0.05-5.0mm-thick layer of regular or irregular bulges or decorative pattern bulges with various shapes is printed, compacted or sprayed on the surface layer of the adhesive tape. The adhesive tape is unique in structural design, is unique and novel in material selection due to the adoption of the one-layer structure or the bulges, and has the functions of energy permeation to meridian points, magnetic treatment, and biomagnetic field ordering. The adhesive tape also has the function of wave energy resonance high-negative-ionizing magnetic treatment and functions of enhancing qi-blood circulation, activating cells, perfecting the cranial nerve, relieving osteoproliferation and rheumatic arthritis and promoting the health of a human body, and can be widely used for being directly or indirectly applied onto various parts of the human body.

In a thermal conduction structure and its manufacturing method, the thermal conduction structure includes a vapor chamber, a heat pipe and a working fluid. The vapor chamber includes an upper casing, a lower casing, and a cavity formed between the lower and upper casings. The upper casing has a through hole communicated with the cavity and a first capillary tissue disposed on the internal surface of the upper casing. The first capillary tissue has a penetrating hole corresponsive to the through hole. The heat pipe includes a tube and a second capillary tissue disposed in the tube and extended out from the tube to define an exposed section, and the heat pipe is passed and coupled to the through hole, and the exposed section is passed through the penetrating hole to attach to the first capillary tissue. The working fluid is filled in the cavity.

A shape compliant gripper with which an atypical object having various shapes, sizes and materials can be picked. The shape compliant gripper comprises a body and a shape compliant module disposed on the body and having rigidity capable of being variably controlled. Further, the shape compliant module comprises a magnetorheological elastomer, a magnet part, and a control part for controlling a position of the magnet part with respect to the magnetorheological elastomer.

A kind of variable engine valve control system with pressure difference comprises hydraulic supply equipment, hydraulic actuator apparatus, valve and spring controlling piston balance. The hydraulic actuator comprises hydraulic cylinder, piston and piston rod. The piston rod is coupled and moved with the valve. It is characterized by that the said piston divides the hydraulic cylinder into upper chamber and lower chamber. The said hydraulic supply equipment is connected with the upper chamber of the hydraulic cylinder through the fluid inlet pipe and the said lower chamber of the hydraulic cylinder is connected with the hydraulic supply equipment through the pressure difference proportional relief valve. Utilizing pressure difference proportional relief valve as key control element, the height of the valve opening is not related to the pressure of the system, it only needs to change electric signal to vary the pressure difference of the upper and lower chambers of the piston thereby attain the object of making variable valve lift and timing at any time as required. Therefore, the system has fast response speed, simple structure, low cost, fine reliability, and less interference. Consequently, this invention can meet the requirement of higher operating speed of internal combustion engines. It can be popularized and applied in internal combustion engines.

The invention discloses an LED streetlight, comprising a heat dissipating device and an LED light source; wherein, the heat dissipating device comprises a heat dissipating substrate and a heat sink; the LED light source comprises a heat-conducting stair and an LED chip on the stair; the heat dissipating substrate is hollow inside; the LED light source is positioned at the lower end of the hollow heat dissipating substrate; the inner wall of the hollow part of the heat dissipating substrate is axially provided with a heat-conducting channel which forms a loop; the lower end part of the heat-conducting channel is positioned at one end of the hollow heat dissipating substrate and the end is provided with the LED light source; fluid heat-conducting media are poured into the heat-conducting channel. With regard to the streetlight, the heat is rapidly dissipated to the heat sink by way of circulative convection and the liquefied heat-conducting media reflow by own gravity to achieve the effect of rapid heat dissipation, thus being a brand new heat dissipation technique.

The present invention relates to a GPU3D engine on-chip memory hierarchy structure facing unified dyeing architecture. The structure comprises four layers of storage structures which are a register layer, an on-chip SRAM&L1Cache layer, an L2Cache layer and a display memory layer from top to bottom. The register layer is connected to the on-chip SRAM&L1Cache layer which is connected to the L2Cache layer or the display memory layer. The L2Cache layer is connected to the display memory layer. The data access delay in the graphics processing process can be effectively reduced, and the data bandwidth utilization rate of a display memory is improved.

A box folding apparatus for folding box blanks into completed boxes is capable of increased production rates by utilizing two or more separate servo systems that independently control the various actuating drive mechanisms associated with the advancing and folding of the box blanks along the production line. Certain actuating drive mechanisms to be operating at different speeds in order to reduce the lag time normally associated with prior art solid drive box folding machinery which normally operate at a single speed. Critical actuating motions used in the process of folding and advancing the box blanks can be performed at a different speed than other non-critical actuating motions.