35results about How to "Improve air leakage" patented technology

The invention discloses a thin combined installation door and window auxiliary frame which is made of metal or plastic profiles and has a bridge-breaking heat insulation type and an ordinary type, wherein each type has a push-pull mode and a sliding mode. The auxiliary frame is in a shape of double Es, the thickness of the auxiliary frame is larger than 4mm and smaller than 15mm, wall fixing screws and angle steel fixing screw grooves are arranged on the surface of the auxiliary frame, and an angle steel groove and angle steel are arranged on the back surface of the auxiliary frame. The auxiliary frame is provided with a standard seat frame for supporting the installation of the auxiliary frame, wherein the seat frame is made of aluminum alloy or metal profiles and has an adjustable mode and a fixed mode. Clamping rods, clamping hooks, horizontal correction devices, vertical correction devices, sill concentric correction devices and rulers are arranged on the seat frame. In installation, the auxiliary frame is fixed on the seat frame through the screws, the seat frame is installed in a door and window hole to be clamped tightly, correction is performed through a correction device, a wall horizontal inked line and a wall vertical inked line, hard plastic gaskets are wedged the back surface of the auxiliary frame tightly, the auxiliary frame is fixed on the wall through two lines of screws, the seat frame is dismantled, cement mortar is filled in slits between the frame and the wall, and a firm standard door and window auxiliary frame is formed after the cement mortar is coagulated.

The invention relates to a steel ball and strong magnet compound type sealing device used for a sintering machine. The steel ball and strong magnet compound type head and tail sealing device comprisesa sealed ore tank, steel balls, high-strength magnets, a sealing beam and an adjustment base. The sealed ore tank is filled with the high-strength magnets and the steel balls of different grain diameters instead of a traditional sealing cover plate, and the rolling sealing effect is achieved. By arranging a magnetic sealing device at the positions of slide way end faces of adjacent trolleys, by means of dependence on the attraction effect of a directionally-magnetized magnet device, iron powder is firmly attracted to the positions of seams of the end portions of slide plates, and then the sealing effect is achieved. Air leakage of a whole sintering system is further reduced, and the ideal ore sintering effect is achieved; and meanwhile electric energy is saved, and high application and popularization value is achieved.

The invention discloses a refractory sealing material for a coke oven head. The composition of the refractory sealing material comprises 20-30% of quartz sand, 30-40% of siliceous clinker, 15-25% of kaolin, 5-15% of sericite, 2-7% of kyanite, and 3-8% of sodium silicate, and 0.3-0.8% of carboxymethyl cellulose is additionally added. The refractory sealing material of the present invention is usedfor sealing and daily repair of space between the coke oven end and iron pieces, oven end contact seams and oven shoulder seams, and facilitates long service life and clean production of a coke oven.

The invention belongs to the technical field of automobile safety electronics, and discloses an integrated solution for a flat automobile tire. According to the integrated solution, sensors and a control unit are included, the sensors comprise the temperature sensor and the pressure sensor, and the control unit comprises a control module, an information receiving and sending module, a storage module and a power supply module. The power supply module supplies power to the control module, the information receiving and sending module and the storage module. According to the integrated solution, temperature and air pressure in the tire are detected in real time and sent to a mobile terminal, and an alarm is given aiming at an abnormal value so that a user can respond immediately to conduct the action of inflating the tire. Operation is easy, convenient and efficient.

The invention relates to a rapid air leakage detection method for an underground goaf. The method comprises the following steps: determining release points and sampling points of air leakage detection of a to-be-detected goaf according to an internal structure and a pressure difference test of the to-be-detected goaf; injecting nitrogen into the to-be-detected goaf at the release point, releasing SF6 gas into the to-be-detected goaf from the release point after monitoring that the flow and the pressure of the nitrogen injection pipe are stable, and recording the release time; when SF6 gas is monitored at each sampling point, collecting a gas sample; detecting the SF6 concentration of each gas sample through a gas chromatograph, and determining the SF6 concentration of the gas sample collected at each sampling point at each sampling time; and according to the shortest air leakage distance between the release point and each sampling point, the release time, the SF6 concentration of each sampling point at each sampling time, the sampling time of SF6 detected by each sampling point for the first time and the sampling time of SF6 detected by each sampling point at the maximum concentration, rapidly obtaining the air leakage condition of the to-be-detected goaf.

The invention provides a foaming and filling type tire and a manufacturing method thereof. The foaming and filing type tire comprises a steel ring, a tire and a filling material, wherein the steel ring is connected to a power device of a vehicle, and a filling port is formed in the inner edge of the steel ring; the tire is arranged on the outer edge of the steel ring; the filling material is poured between the steel ring and the tire from the filling port of the steel ring; the filling material is a foaming material, when the tire is broken, air cannot leak, the vehicle can be supported continuously, and the purposes that the tire is free of air leakage or tire burst and the vehicle can be supported continuously when the tire is broken can be achieved. Common steel rings and tires can be used, the foaming material takes the place of common filing gas, the foaming material is poured into the tire, the disadvantages of air leakage and tire burst for common gas filling type vehicle wheelsare improved, and the purpose of improving the safety can be reached.

An ignition groove of a natural gas rotary engine comprises a front wall face, a back wall face and a groove channel which is arranged between the front wall face and the back wall face. The front wall face is composed of an arc section and a non-arc section embedded with a carborundum sheet, and the back wall face is composed of an arc section and a non-arc section embedded with a carborundum sheet. The front wall face and the back wall face extend parallelly from the bottom to an air cylinder molded surface, and respectively extend from the position close to the air cylinder molded surface to form arc-shaped wall faces. The radius of an arc on one side of the front wall face is smaller than that of one side of the back wall face. A rectangular concave pit is formed in a non-arc wall face of the groove channel, and is embedded with a carborundum sheet which is coated with a platinum catalyst coating. The depth of the concave pit is equal to the thickness of the carborundum sheet, and therefore the arc sections of the front wall face and the back wall face and the non-arc sections which are embedded with the carborundum sheets of the front wall face and the back wall face are enabled to be respectively connected smoothly. According to the ignition groove of the natural gas rotary engine, the engine ignition is enabled to be convenient, combustion is promoted and accelerated by utilizing of a stable flame back frontal surface after ignition, combustion efficiency is improved, and whole performance of the engine is improved.

The invention relates to a METHOD AND SYSTEM FOR EXPEDITING ENGINE WARM-UP. Methods and systems are provided for improving crankcase ventilation by directing heated air to a crankcase. Air is drawn into the crankcase upon passage through an interstitial space of a double walled exhaust manifold where it is heated. Crankcase vapors are then released to the engine intake, downstream of an intake throttle.

The invention provides a continuous monitoring device for a position of a laryngeal mask. The continuous monitoring device comprises an inflation bag and a ventilation pipe connected with the inflation bag, wherein ear air bags are arranged at the left and right sides of the inflation bag respectively; the inflation bag is internally provided with an air outlet and a reserved pipe inserting opening; a temprature probe connection wire is buried into one side of a pipe wall of the ventilation pipe; an ear bag inflation pipeline is arranged at the other side of the pipe wall of the ventilation pipe; a temperature measuring probe is arranged at one end, close to the inflation bag, of the temprature probe connection wire; the other end of the temprature probe connection wire is connected with a display screen; a camera is arranged at the part, close to the temperature measuring probe, of the bottom of the inflation bag; the ear air bags are communicated with an ear bag inflation opening through the ear bag inflation pipeline; a breathing opening connector is arranged at the bottom of the ventilation pipe. The continuous monitoring device for the position of the laryngeal mask has the beneficial effects that the inflation bag can be inflated at the periphery and air leakage is prevented; an air pipe inserting pipe can be inserted to help breathing when inflation is not carried out, and the laryngeal mask can be prevented from deviating through detection.

The invention discloses a feeding method and the feeding equipment of an anode refining furnace. Feeding is realized in a way that: through a connecting chute between a converting furnace and the anode refining furnace, hot crude copper produced by the converting furnace automatically flows into a feed inlet on the upper part of a headwall of the anode refining furnace due to an altitude difference between the converting furnace and the anode refining furnace, and then enters the anode refining furnace for refining. In the equipment, the feed inlet is fixedly arranged on the upper part of the headwall of the anode refining furnace by a bracket, aslant rotates with the anode refining furnace, forms the altitude difference of at least 1 cm with a copper placement opening of the converting furnace, and is jointed with the connecting chute. As the feed inlet and a smoke outlet are arranged on the two headwalls of the anode refining furnace respectively, the method has the advantages of low cost, small discharged smoke amount, high temperature and the favorability for waste heat recovery and treatment. The equipment has the characteristics of simple structure, low cost, secure operation, the capacity of avoiding the high-altitude lifting and delivery of high-temperature melt, high furnace sealing property, less air leakage, the favorability for flue gas waste heat recovery and subsequent flue gas treatment, and particular application to copper smelting plants adopting a copper continuous converting process.

The invention discloses a method for improving the surface quality of an upper cover of a battery. The method comprises the following steps that prepreg is laied in the whole lining of a mold; electronic cloth is placed at the local position of the prepreg; a press is started to close the mold and perform compression molding operation, the compression molding operation comprises continuous first-stage compression molding and second-stage compression molding, and the first-stage compression molding parameters are as follows, the compression molding pressure is 20-50T, and the pressure holding time is 15-60 seconds; the second-stage compression molding parameters are as follows, the compression molding pressure is 160-240 T, and the pressure maintaining time is 240-480 seconds; the mold closing speed is 5-10 mm/s; the temperature of the upper mold is 153-163 DEG C, and the temperature of the lower mold is 155-165 DEG C; and the mold is opened and the product is taken out.

The invention provides a DPF cylinder assembly sealing structure. The structure comprises a front cylinder, a DPF cylinder, a sealing ring and a V-shaped hoop, the side, close to the DPF cylinder, ofthe front cylinder is axially positioned and radially matched, the side, close to the DPF cylinder, of the front cylinder is in the shape of an arc with straight edges, the sealing ring is arranged between the front cylinder and the DPF cylinder in a clamped mode, and the upper part of the joint between the front cylinder and the DPF cylinder is sealed through the V-shaped hoop in a matched mode.According to the structure, excessive air leakage points are reduced, the problem of air leakage is solved, costs are saved, and the resistance of a DPF cylinder assembly to radial vibration is increased.