52results about How to "Reduce inflation pressure" patented technology

PCT No. PCT/EP96/04228 Sec. 371 Date Feb. 20, 1998 Sec. 102(e) Date Feb. 20, 1998 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/14635 PCT Pub. Date Apr. 24, 1997The invention concerns a conveyor belt scraper used to scrape debris from the surface of a conveyor belt (10). The scraper incorporates a segmented scraper blade which includes individual blade segments (22) arranged side by side with one another such that in use each blade segment scrapes a portion of the width of the belt surface. For blade segment there is a blade segment support (28) on which the associated blade segment (22) is supported. Each blade segment support (28) includes pivotally interconnected links (30, 32, 34, 36) forming a closed parallelogram linkage. A support structure (42, 82) is provided to support the parallelogram linkages in side by side relationship adjacent the belt surface. Gas-inflatable biasing means (44, 58) act on the parallelogram linkages such that inflation thereof causes the linkages to deform in a manner to displace the blade segments (22) in a direction lengthwise of the belt (10) and towards the belt surface. During such displacement, each blade segment (22) moves parallel to itself and maintains a constant inclination to the vertical.

An insulation material and a method of manufacturing the insulation material are disclosed. The insulation material includes (a) particles of a combustible insulation material coated with a fire resistant material and/or (b) an open celled foam of the combustible insulation material having internal surfaces coated with the fire resistant material.

The invention provides a tray used for steel coil transportation, and belongs to the technical field of transportation. The tray solves the technical problem that an existing movable tray is not suitable for bearing steel coils. The tray comprises a tray frame and a limiting frame arranged on the tray frame and used for positioning a steel coil. At least two long-strip-shaped installation grooves are formed in the bottom of the tray frame. Long-strip-shaped rolling wheel frames are arranged in the installation grooves. A plurality of rolling wheels are connected to the rolling wheel frames in the length direction of the rolling wheel frame. Guide structures capable of guiding the rolling wheel frames to move up and down relative to the tray frame and limiting structures capable of preventing the rolling wheel frames from being disengaged from the installation grooves are arranged on the portions, located in the installation grooves, on the tray frame. Gas bags are arranged in the installation grooves and located above the rolling wheel frames. The whole rolling wheels can be located in the installation grooves when the gas bags are not inflated. The gas bags can act on the rolling wheel frames to make the rolling wheels stretch out of the installation grooves when the gas bags are inflated and expanded. The tray has the advantage that the steel coil can be stably transported.

The invention relates to a waste steam, condensate water and cooling water regenerating device of a thermal power plant and a nuclear power plant. The device provided by the invention is characterized in that after steam drives a turbine to generate power, the swelling pressure of the turbine is reduced, but the steam quality of the turbine is not reduced; the waste steam is pressed into a platform with a certain height relative to the ground through a pipeline under 3 to 4 atmospheric pressures (while the higher height is better but according to actual conditions); after being cooled through a highly vacuum condenser, the waste steam is changed into liquid water at a temperature of about 40 DEG C; after being exhausted and stored into an upper water storage tank at the lower part, the liquid water leaks downwards through a pressure pipeline to drive the turbine; the turbine drives a generator to generate the power; the cooling water is lifted to the height which is the same to the condenser through a circulating water pump; the waste heat is taken away by the condenser; after being exhausted and stored into another upper water storage tank at the lower part, the waste heat leaks downwards through the pressure pipeline to drive the turbine; and the turbine drives the generator to generate the power (while the cooling of the condenser is divided into water cooing and air cooling, if the air cooling is adopted, a cooling water generating device is not provided).

The invention discloses a marine fluid kinetic energy integrated generating system, which comprises energy capturing devices converting fluid kinetic energy into mechanical energy, a mechanical energy transmission mechanism and a generating mechanism converting the mechanical energy into electrical energy. The system is connected with a pressure increasing valve. The flow at an inlet of the pressure increasing valve is controlled by a switch valve. The hydraulic branch circuit is a hydraulic branch circuit group formed in a mode that at least more than two hydraulic branch circuits are connected in parallel. Each hydraulic branch circuit is connected with one energy capturing device. The marine fluid kinetic energy integrated generating system adopting the structure not only can capture high-energy marine fluid kinetic energy, but also can capture weak marine fluid kinetic energy and is particularly suitable for the integrated generating system for capturing the weak marine fluid kinetic energy.

The invention discloses an air sealing body. A forky isolation heat sealing line is arranged on the top of a longitudinal heat sealing line. One part of a heat resisting block is arranged above a middle heat sealing line, and the other part of the heat resisting block is arranged below the middle heat sealing line. The left and/or right side of the portion, above the middle heat sealing line, of the heat resisting block intersect/intersects with the adjacent isolation heat sealing line. A front outer film, a front inner film, a rear inner film and a rear outer film are bonded through the position, intersecting with the heat resisting block, of the isolation heat sealing line, and at the intersection of the isolation heat sealing line and the heat resisting block, the front inner film and the front outer film are bonded, and the rear inner film and the rear outer film are bonded. According to the air sealing body, due to the fact that the inner films are fixed to the outer films through the longitudinal heat sealing line and the isolation heat sealing line in a multi-point mode, an inflation channel opened firstly can assist in opening of an air inlet in the inflation process, inflation pressure is reduced, and inflation speed is high.

The present invention discloses a bionic shale inhibitor, consisting of structural units denoted by formula (1) and structural units denoted by formula (2), wherein, the molar ratio of the structural units denoted by formula (1) to the structural units denoted by formula (2) is 0.2-6:1, and the weight-average molecular weight of the shale inhibitor is 800-4,000 g/mol. The present invention further provides a method for preparation of a bionic shale inhibitor. The present invention further provides a drilling fluid containing the bionic shale inhibitor. The bionic shale inhibitor disclosed in the present invention has high shale inhibition capability, and is environment-friendly and pollution-free.

An arrangement of two airbags located in a respective seatback for two adjacent seats. The two airbags are configured to deploy in a center area between the two adjacent seats and provide support and protection for an occupant in a vehicle involved in a far-side crash.

The invention relates to a novel wireless fluorescent lamp which works in a bright arc transition zone, comprising a lamp tube, an electrode, a drive, a lamp casing and a lamp cup or lampshade. The electrode consists of tungsten, or molybdenum or iron. More than one layers of anti cathode sputtering films are arranged on the surface of the electrode. Super-pure argon air is filled into the lamp tube with an air-filling pressure ranging from 800 Pa to 6665Pa. The work current of the lamp tube is between 7MA and 60MA. A cold end is arranged in the lamp tube and a titanium mercury zirconium aluminum 16 alloy amalgam or an indium mercury zirconium aluminum 16 alloy amalgam is arranged in the cold end. An insulation layer is arranged between the lamp cup or lampshade and the lamp casing. The cold end extends from the lamp cup or lampshade to the insulation layer. The invention enhances light effect and surface brightness, and has small volume, high flux, enhanced reliability and long service life. The manufacture of the drive is easy, the manufacturing cost is low and the cost performance is high, furthermore, the proposal of the EMC is easy, the cost for restraining electromagnetic interference wires is low and the effect for restraining electromagnetic interference is good.

In a tire inflation pressure detection device, a receiver functions such that, when an ignition switch is on, power is generated by a power supply controller to set the power supply state of the receiver to one in which frame reception is enabled to detect the inflation pressure of a tire, and such that, when the IG is off, in each predetermined intermittent cycle power is generated by the power supply controller to set the power supply state of the receiver to one in which frame reception is enabled to detect the inflation pressure of the tire. A transmitter determines whether a decrease in tire inflation pressure occurs, and when the decrease occurs, the transmitter transmits frames more frequently than before the occurrence of the decrease in tire inflation pressure at a shorter frame transmission time interval than a regular transmission cycle during a high-frequency transmission period.

The invention discloses a downhole casing twin-stage cone expansion device and an operating method thereof. The downhole casing twin-stage cone expansion device comprises a first-stage expansion cone,a second-stage expansion cone, a central tube, a connecting outer tube, a limiting mechanism, a top check block and the like; and the central tube is mainly composed of a spline shaft, a double-deckinner tube, a connecting inner tube and the like, and the double-deck inner tube comprises a central inner tube and a central outer tube. When an expansion casing is subjected to first-stage expansion, the first-stage expansion cone together with the connecting outer tube and the top check block move up along the central tube, and the first-stage expansion is completed after limiting displacement;when second-stage expansion occurs, the second-stage expansion cone, the central tube and the limiting mechanism move up relative to the first-stage expansion cone, and single-stroke expansion ends after second-stage limiting displacement; and hydraulic expansion of the expansion casing is completed in stages by repeating twin-stage expansion stroke until the expansion casing is fully expanded. According to the downhole casing twin-stage cone expansion device and the operating method thereof, the expansion force of the casing can be effectively reduced at downhole, the possibility of expanding the expansion casing can be achieved to a larger extent, and construction risks are reduced; and the downhole casing twin-stage cone expansion device can be used in the expansion casing operation inthe fields of expansion casing subsidy well repair, well completion, and well drilling and plugging and the like.

The invention discloses an inflatable safety valve for an emulsion pump. The inflatable safety valve is mainly used for safety protection of emulsion pumps in order to prevent the situation that overall system pressure is too high since unloading valves of the emulsion pumps are broken and cannot be used for normal unloading. The inflatable safety valve adopts high-pressure nitrogen for replacingmechanical springs to serve as elastic elements. Under the condition that the drift diameter for liquid drainage is increased, the size of the safety valve is reduced, and the response time of the safety valve is shortened. A liquid cavity sealing pair adopts a steel-steel hard sealing mode and has the advantages of long service life and great antifouling performance. The area of a liquid cavity sealing port is 50% of the airtight area of a valve core, the inflation pressure is decreased, and the sealing reliability is improved.

The invention discloses an automatic unlocking door opening system for fire. The automatic unlocking door opening system comprises a lock catch body embedded in a door frame and a controller embeddedin a wall, wherein the lock catch body comprises a lock catch plate and a plurality of lock groove boxes; a plurality of lock holes are formed in the positions, corresponding to the lock groove boxes,of the lock catch plate; a piston plate is installed in each lock groove box in a sealed and sliding manner; an ejection column is installed on the side, close to the corresponding lock hole, of eachpiston plate; and a spring wire is installed on the side, away from the corresponding lock hole, of each piston plate. According to the automatic unlocking door opening system, fire heat is transmitted to thermal expansion liquid through a heat conduction plate so that the thermal expansion liquid can expand, the piston plates and the ejection columns are pushed to move towards the lock holes through drainage of guide pipes so that lock tongues can be pushed out of the lock groove boxes to be unlocked, and the automatic unlocking function for fire is achieved; and in addition, the ejection columns enter the lock holes so that an alarm circuit can be connected to give out alarm sounds to disperse surrounding personnel, an effective rescue channel is provided for firefighters, and the rescue time is saved.

The invention discloses a high-speed railway soft rock deep cutting arch-up deformation control structure and a construction method. Continuous arch-up deformation of a high-speed railway deep cuttingin a soft rock area can be effectively controlled, rock body stress distribution can be adjusted, adjacent slopes can be reinforced, and then the construction cost can be reduced. The high-speed railway soft rock deep cutting arch-up deformation control structure comprises a ballastless track roadbed constructed on a soft rock base bed, the two sides of the ballastless track roadbed are providedwith right-side resisting piles and left-side resisting piles at intervals on a right-side slope body and a left-side slope body in the line direction, and the right-side resisting piles and the left-side resisting piles go deep into a certain depth under the base bed elevation. A reinforced concrete arc-shaped plate which is symmetrical along the central line of the roadbed and concaved downwardsis arranged on the top face of the soft rock base bed, and the two transverse sides of the reinforced concrete arc-shaped plate are rigidly connected with the right-side resisting piles and the left-side resisting piles to form a whole; and a water isolating cushion layer is arranged on the top face of the reinforced concrete arc-shaped plate, and the ballastless track roadbed is arranged on thewater isolating cushion layer in a filling manner.