40results about How to "Avoid baking" patented technology

The invention relates to a method for measuring sediment concentration through density of muddy water. The method comprises the following steps: 1) preparing, namely (1) weighing mass of sediment MS which serves as a sand sample, putting the sediment into a container, measuring volume VW of clear water, pouring the clear water into the container, and stirring to form muddy water; (2) measuring volume V of the muddy water obtained in the step (1), and calculating volume VS of the sediment in the muddy water according to a formula of VS=V-VW; and (3) calculating density of the sediment according to a formula of rhos=Ms / Vs; and 2) testing, namely (1) weighing mass M of muddy water to be measured, and measuring volume V of the muddy water to be measured; (2) calculating density of the muddy water according to a formula of rho=M / V and calculating density of the clear water according to a formula of rhoW=MWVW; and (3) calculating to obtain the volume concentration of the sediment according to a formula of CV=(rho-rhoW)(rhoS-rhoW). The method can be applied to sediment concentration measurement in muddy water rivers, hydropower stations, water pumping stations and the like, sediment concentration measurement in simulation test devices and calibration of various concentration measurement instruments in pressure flow and open-channel flow, as well as solid particle concentration measurement for all solid-liquid two-phase flows comprising solid particles.

The invention relates to a front steel turning device of a cogging mill, which comprises an alternative roller (100), a base (200), a translation framework (300), a lifting mechanism (400), a turning mechanism (500), and a clamping roller mechanism (600). The alternative roller (100) is fixedly connected with the translation framework (300) and can move linearly along the base (200), the lifting mechanism (400) is arranged in the translation framework (300), the turning mechanism (500) is arranged on the side face of the lifting mechanism (400), the turning mechanism (500) and the lifting mechanism (400) can simultaneously move up and down along the inner side of the translation framework (300), the clamping roller mechanism (600) is connected with the output shaft of the turning mechanism (500) to realize synchronous rotation along with the turning mechanism (500), the translation framework (300), the lifting mechanism (400) and the clamping roller mechanism (600) are provided with adisplacement sensor, and the turning mechanism (500) is provided with an encoder. Automatic control of the whole steel turning process can be achieved, the positioning accuracy is high, and the device can be used conveniently and reliably, has a simple structure and low cost and can be maintained conveniently.

The invention relates to the technical field of wind power L-shaped flange machining, in particular to a tool arranged on a ring rolling machine for automatically rolling wind power L-shaped flanges and a method thereof.The tool comprises a moving table and a measuring mechanism, a moving part is arranged in the moving table, and a first hydraulic rod is arranged at one end of the moving table; a first connecting groove is formed in the inner wall of one end of the first rotating groove, a first rotating rod is rotatably connected to the interior of the first rotating groove, a first conical rod is fixedly connected to one end of the first rotating rod, and a first servo motor is arranged on the inner wall of the bottom end of the moving part. The device is simple and convenient to operate and convenient to maintain, and can perform measurement work when the workpiece is at high temperature, so that change can be performed at any time according to a measurement result, a user does not need to perform measurement after cooling the workpiece, a large amount of working time of the user is saved, the production cycle of the workpiece is greatly prolonged, the user does not need to get close to measure, and the user is prevented from being baked by high temperature; and the measurement safety of the user is further improved.

The invention discloses a structure and an assembly method of an electron multiplier, An electron multiplier is composed of a low substrate, an upper substrate motherboard, an upper substrate assistedplate, a dozen electrode assembly and a collector assembly; A plane-type voltage dividing resistor and a flat-type transition electrode are arranged on the upper surface of the upper substrate main board, A main board of that upper substrate is provide with a dozen mounting hole corresponding to an electrical connection hole of the dozen assembly, A surface-type transition electrode is electrically connected with that mounting hole of the dozen electrode, A planar voltage dividing resistor and a planar transition electrode are partially overlapped and electrically connected, Then, the dozen electrode assembly and the collector assembly are fixed between the lower substrate and the upper substrate main board, and the upper substrate auxiliary board is fixed on the upper end of the upper substrate main board, so that the space between the upper substrate auxiliary board and the upper substrate main board is reduced, the resistor film layer and the transition electrode film layer are partially overlapped, and the electrical connection is very reliable; The voltage dividing resistor, the transition electrode and the upper substrate main board are integrated into one body, and each voltage dividing resistor need not be soldered one by one, and the structure is compact, so that the assembly link of the soldering resistor is reduced.

A cylinder head in which a partition wall for separating exhaust ports of adjoining cylinders extends from between these adjoining cylinders to an exhaust merging portion and the partition wall is formed with a head bolt insertion hole inside it, an oil passage is formed in the partition wall between the front end of the partition wall facing the exhaust merging portion and the head bolt insertion hole, and a heat insulating layer is formed inside the partition wall between the front end of the partition wall and the oil passage.

The invention discloses a progressive waste heat circulation drying system for fabric. The system comprises a tank, wherein supporting legs are arranged at the lower end of the tank, a winding rollerand a driving roller are arranged in the tank, a horizontal transverse plate is fixedly connected to the inner wall of the tank, a cavity is formed in the transverse plate, and air holes communicatedwith the cavity are uniformly distributed in the upper end of the transverse plate. By progressive drying of the fabric, the dried fabric can be effectively prevented from being damaged by airflow with higher temperature through drying; hot air carrying water vapor is collected to enter a fan through a gas collecting cover, and the water vapor is filtered out by a drying mechanism for next use, and meanwhile, used hot water flows back into a heating box for recycling, so that waste of heat energy is reduced; the driving roller rotates to drive a driving mechanism to work to press water, and the cost of the system is reduced.

The invention relates to the field of automobile rearview mirrors, in particular to an automobile rearview mirror with an adjustable angle. The automobile rearview mirror comprises a fixing frame, anadjusting mechanism, an installing mechanism, a dehumidifying mechanism, a connecting mechanism, a first clamping mechanism, a second clamping mechanism and screws. A fixing box is installed at the top of a fixing shell, a fan is installed inside the fixing box, and a sealing plate is opened to drive the fan when an automobile is driven. Power generation of a generator is further realized, and a heat-conducting piece located on the back of the rearview mirror starts heating to dry up frost and rainwater, so that driving of a driver is easy; when there is no need to dry up the rainwater and frost on the rearview mirror, the sealing plate is closed, the fan is stopped from movement, furthermore, power generation of the generator is stopped, and it is avoided that under constant power generation of the heat-conducting piece, the rearview mirror is exploded during drying.

The invention discloses a dry burning prevention device. The dry burning prevention device comprises a burner, an outer ring fire cover is arranged on the burner, a center fire cover is arranged in the outer ring fire cover, and a temperature sensor is arranged on the center fire cover. A heat insulation structure is further included and sleeves the temperature sensor, the flame is prevented fromdirectly contacting the temperature sensor, so that the temperature sensing accuracy of the temperature sensor is improved. The invention further discloses a gas stove. The gas stove comprises a bottom shell, a panel is fixedly connected to the bottom shell, and the dry burning prevention device is arranged on the panel. According to the gas stove, the heat insulation structure sleeves the temperature sensor of the central fire cover, the telescopic temperature sensor is prevented from being baked by flame of a burner, the durability and the temperature sensing accuracy of the telescopic temperature sensor are enhanced, the misjudgment of the temperature is prevented, and the user experience is improved; and personal safety injury or other accidents possibly caused to users are reduced.

The invention provides a composite fiber reinforced polymer (FRP) rebar preparation device which comprises a yarn feeding device, an impregnation device, a forming device, a heating curing device, a traction device, a cutting device and a length control device. Relative to the prior art, the preparation device has substantive characteristics and progress, particularly, yarn pressing rolling shafts and yarn threading holes are arranged in the yarn feeding device of the composite FRP rebar preparation device, so that fiber bundles are enabled to be in a tension state, and different fiber bundles are prevented from knotting and rubbing; through the adoption of the impregnation device, the fiber bundles are fully and uniformly impregnated, the coating amount is small, the fiber content of a composite FRP rebar is increased, and the standard deviation of the mechanical performance of the composite FRP rebar is reduced; through the adoption of the forming device, the distribution uniformity of the fiber bundles in thermosetting resin is greatly improved; through the adoption of the heating curing device, the curing temperature is enabled to be stable, and the production is facilitated; and through the adoption of a buzzer of the length control device, operators can be reminded to carry out cutting, the FRP rebar is prevented from being over-roasted, and the continuity and safety of production are improved.

The invention relates to a front steel turning device of a cogging mill, which comprises an alternative roller (100), a base (200), a translation framework (300), a lifting mechanism (400), a turning mechanism (500), and a clamping roller mechanism (600). The alternative roller (100) is fixedly connected with the translation framework (300) and can move linearly along the base (200), the lifting mechanism (400) is arranged in the translation framework (300), the turning mechanism (500) is arranged on the side face of the lifting mechanism (400), the turning mechanism (500) and the lifting mechanism (400) can simultaneously move up and down along the inner side of the translation framework (300), the clamping roller mechanism (600) is connected with the output shaft of the turning mechanism (500) to realize synchronous rotation along with the turning mechanism (500), the translation framework (300), the lifting mechanism (400) and the clamping roller mechanism (600) are provided with adisplacement sensor, and the turning mechanism (500) is provided with an encoder. Automatic control of the whole steel turning process can be achieved, the positioning accuracy is high, and the device can be used conveniently and reliably, has a simple structure and low cost and can be maintained conveniently.

Compounds of general formula (I):are useful as inhibitors of cyclin dependent kinases such as CDK9.

A production device for Tencel bamboo fiber shirting fabric belongs to the technical field of textile equipment; a fixed rod is provided on the outer circular wall of the sleeve shaft, a rotating hole is opened on the outer wall of the fixed rod, a fixed block is fixedly installed on the outer wall of the fixed rod, and a fixed block is fixed on the outer wall of the fixed block. An extension plate is fixedly installed on the top, and a wind-resisting plate is fixedly installed on the upper wall of the extension plate. The dried cloth is fixed inside the dryer shell through the fixing clip. The cloth is not flattened. The motor is connected with the external power supply equipment, and the motor drives the magnet. Once rotated, when the first magnet rotates to correspond to the position of the through hole, the first magnet and the second magnet repel each other, at this time, the connecting frame rotates upward under the repulsive force of the first magnet and the second magnet, and the scraper follows the upward rotation of the connecting frame to move cloth, and then the scraper rotates downward under the force of the tension spring, and the scraper moves up and down inside the shell of the dryer and constantly pushes against the cloth to drive the cloth to vibrate to shake off the moisture in the cloth to speed up the drying of the cloth dry efficiency.

The invention provides a main board of a router and the router. The main board of the router comprises a FLASH chip main circuit and a multi-layer PCB for bearing the main circuit and the FLASH chip, the main circuit and the FLASH chip are oppositely arranged on the PCB at a preset interval, baking of a heat source is prevented, meanwhile, the FLASH chip and the main circuit are arranged on different arrangement areas respectively, The FLASH chip and the GND network are isolated through the first isolation groove, heat transfer of the GND network is reduced, heat influence of a heat source on the FLASH chip is reduced and the temperature of the FLASH chip is reduced by arranging the isolation groove and keeping away from the heat source, meanwhile, a cooling fin does not need to be arranged or a vehicle-level material does not need to be changed, and the design cost is reduced.

Disclosed is a protection method used for an air-conditioning air guide plate, comprising: detecting whether an abnormality has occurred in the position of an air guide plate for air-conditioning; and if it is detected that an abnormality has occurred in the position of an air guide plate for air-conditioning, controlling correction of the position of the air guide plate for air-conditioning. Further disclosed is a protection apparatus used for an air-conditioning air guide plate. The method and the apparatus solve the problem of air guide plates being easily damaged.

The invention discloses an airflow heating type electronic cigarette. The electronic cigarette can comprise a filtering assembly, a tobacco pot assembly, a heating assembly and a battery assembly. Fluid is placed in the filtering assembly to filter smoke; the tobacco pot assembly is connected to the filtering assembly, and a heated medium is placed in the tobacco pot assembly; the heating assembly is connected to the tobacco pot assembly and used for generating heating airflow to heat the heated medium in the tobacco pot assembly; the battery assembly is connected to the heating assembly to supply power to the heating assembly.

The invention provides a self-rotating large-current MAG (Magnetic) welding composite nozzle welding gun for removing slag and a slag removing method thereof. The invention aims at solving the slag removal difficulty of the welding gun in large-current MAG welding process and further optimizing a nozzle structure. The invention mainly comprises a welding gun structure which can remove welding spattering slag in a composite nozzle in a self-rotating way as well as a self-rotating slag-removing method of the welding gun. The welding gun structure and the self-rotating slag-removing method are suitable for thick wire large-current MAG welding.