40results about How to "Avoid high temperature aging" patented technology

The invention relates to a guiding device and a guiding method for a diesel engine selective catalytic reduction (SCR) system for an automobile. The guiding device comprises an expansion pipe and at least two guiding plates arranged in a mutually embedding mode. The end where gas flows to the expansion pipe is a gas inlet end and the end where the gas flows out of the expansion pipe is a gas output end. The guiding plates at fixedly arranged on the gas inlet end of the expansion pipe and each guiding plate is in a trumpet shape without a front end face and a rear end face. A fluid channel is formed among the guiding plates. The guiding device is simple in structure, low in manufacturing cost and easy to install. According to the guiding device and the guiding method, due to backflow generated in the portion of an elbow pipe, exhaust of the automobile and urea sprayed from a nozzle can mix well so that generation of crystal on a wall is reduced. Due to the guiding device in the expansion pipe portion, mixed gas is converted from turbulent flow to laminar flow so that velocity distribution is even, radial pressure difference and temperature difference inside a catalytic agent are reduced, conversion efficiency of nitric oxides is improved, through capacity of a catalytic agent carrier is improved and service life of a catalyst is prolonged.

The invention discloses a steel-plastic composite pipe cutting end surface plastic seal device and an application thereof, and belongs to the field of the production of a steel-plastic composite pipe cutting end surface plastic seal. The steel-plastic composite pipe cutting end surface plastic seal device comprises an outer airbag, an inner airbag and a plastic ring, and also comprises a heater, wherein the outer airbag and the inner airbag are respectively provided with an air valve, the outer airbag is in a loop shape, the outer air valve sleeves the outer wall of a composite pipe plastic layer of the steel-plastic composite pipe outer layer when in use, the cross section of the inner airbag is in a T shape, and the inner airbag is of a structure with a T-shaped head circular cover on the top and a cylindrical air cavity in the lower part; and the plastic ring is an annular cylindrical structure; a heater coil surrounds the outer wall of the outer airbag. By utilizing the plastic seal device, the seal work of a steel-plastic composite pipe is completed by virtue of steps of assembling, pressurizing, heating, cooling and pressure relief. According to the plastic-seal device and the application thereof, a purpose of firmness in injection molding and unlikeliness in dropping can be realized; and moreover, the steel-plastic composite pipe cutting end surface plastic seal device has advantages of simple process, less investment, low energy consumption, attractive appearance, low cost and the like.

The invention discloses a small colloid mill for manufacturing an asphalt road surface and relates to crushing, grinding or smashing. The small colloid mill is used for solving the problems that by means of an existing device, matrix asphalt and an auxiliary cannot be ground sufficiently, and consequently, a cross-linking reaction is not thorough. The small colloid mill comprises a motor shell, a vertical motor, a millstone structure, a feed hopper, a self-circulating pipe and a cooling water pipe connector. The vertical motor is arranged in the motor shell, the millstone structure is arranged above the motor shell, the feed hopper is arranged above the millstone structure, the upper side wall of the millstone structure is connected with the cooling water pipe connector, the lower side wall of the millstone structure is connected with the lower end of the self-circulating pipe, and the upper end of the self-circulating pipe extends to the feed hopper. The millstone structure comprises a millstone shell, a millstone stator, a millstone rotor and a first rotating shaft. By improving the millstone structure, grinding is sufficient, and the cross-linking reaction is thorough. The invention further discloses a use method of the small colloid mill for manufacturing the asphalt road surface.

The invention discloses a high-efficiency and noise-reduction inversion small double-cylinder generator set which comprises an engine with an overhead cam mechanism adopted on a cylinder head, and a generator coaxially connected to one side of the engine. The overhead cam mechanism comprises a cam and a cam shaft used for fixing the cam. The high-efficiency and noise-reduction inversion small double-cylinder generator set is characterized in that a synchronous belt transmission mechanism and an air guide transmission cavity containing the synchronous belt transmission mechanism are arranged onthe side, away from the generator, of the engine, wherein the synchronous belt transmission mechanism is connected with a crankshaft of the engine and the overhead cam mechanism; the synchronous belttransmission mechanism comprises a cam shaft belt wheel fixed to the cam shaft, a crankshaft belt wheel fixed to the crankshaft, and a belt connected with the belt wheels; and a suction type impelleris arranged at the center of the cam shaft belt wheel, and the shell wall of the air guide transmission cavity is provided with an air inlet opposite to the cam shaft belt wheel and an air outlet opposite to the crankshaft belt wheel. By means of the high-efficiency and noise-reduction inversion small double-cylinder generator set, the cooling problem of the synchronous belt transmission mechanism is solved, the high-efficiency and noise-reduction inversion small double-cylinder generator set can work reliably, and therefore noise of the small double-cylinder generator set is controlled and lowered more effectively.

A laser cladding strengthening method for the fire side of the water-cooled wall pipe of a power plant furnace, comprising the following steps: 1) preparing a preset coating: 2) coating the glue on the surface of the water-cooled wall pipe, The thickness of the coating layer is 0.3-0.5 mm; 3) Under the protection of argon, use a carbon dioxide laser processing machine or a semiconductor laser machine for laser cladding. The invention utilizes the high-absorption laser characteristics of nano-titanium oxide and nano-zinc oxide, and greatly improves the cladding effect of equal incident laser power density; the absorbing coating has a nano-cracking anti-cracking effect in the cladding process, which can avoid cracking of the cladding layer ; Ni-based alloy with excellent high-temperature performance is added to avoid high-temperature aging of the structure in the cladding layer. The invention makes a breakthrough in the laser cladding of the water-cooled wall tube.

The invention discloses a cooling structure for a pump body of a water pump. The cooling structure comprises an upper protecting hood and a lower protecting hood. A water pump main body is arranged between the upper protecting hood and the lower protecting hood, a water inlet pipe is arranged at one end of the water pump main body, a water outlet pipe is arranged at the other end of the water pumpmain body, a cooling water pipe is arranged on the surface of the water pump main body, a water inlet is formed in one end of the cooling water pipe, a water outlet is formed in the other end of thewater cooling pipe, ventholes are formed in the surfaces of the upper protecting hood and the lower protecting hood, fixed hoods are arranged at two ends of the upper protecting hood and the lower protecting hood, fixed blocks are arranged on the front side face and the back side face of the fixed hoods, screw holes are formed in the surfaces of the fixed blocks, bolts are arranged in the screw holes, and nuts are arranged at the bottoms of the fixed blocks. By arranging the cooling water pipe and the ventholes, heat of the water pump main body is dissipated favorably, so that a sealing material in the water pump main body is prevented from being aged by a high temperature.

The invention discloses a guide ceramic valve rod for a filling valve, and relates to the technical field of filling valves. The ceramic valve rod comprises a stainless steel valve element and a ceramic coating arranged on the outer side of the stainless steel valve element, wherein the ceramic valve rod and a valve sleeve are sealed in a matched guide mode. According to the guide ceramic valve rod, the ceramic coating is arranged on the outer side of the stainless steel valve element, so that the stainless steel valve element has high temperature resistance and corrosion resistance; and the ceramic valve rod and the valve sleeve are sealed in the matched guide mode, and a guide belt and a sealing ring are cancelled, so that the problems that the guide between the valve rod and the valve sleeve is not flexible and a spring cannot reset due to the aging of the sealing ring are solved.

The invention discloses a rubber alloy asphalt modifier with high storage stability. The rubber alloy asphalt modifier is prepared from the following components in parts by weight: 60-70 parts of rubber powder, 5-7 parts of waste plastic, 0.05-0.1 part of glucuronic acid, 15-20 parts of polydimethylsiloxane, 8-10 parts of polyether epoxy resin and 0.00005-0.01 part of graphene powder. Preparationcomprises the steps: (1) waste rubber is crushed into small-particle flocculent rubber powder; (2) the flocculent rubber powder obtained in the step (1) is activated and desulfurized to be regeneratedthrough microwave radiation, and activated rubber powder is obtained; (3) the components are fully mixed, dried, extruded and granulated, and the granular asphalt modifier is obtained; and (4) matrixasphalt is heated, after the modifier is added, the temperature is increased, high-speed shearing and drying are conducted, and then modified asphalt is obtained. According to the prepared modifier,the high-and-low temperature performance of the matrix asphalt can be effectively improved, the storage stability is improved, the adhesiveness between the asphalt and aggregate is increased, storageis easy, the blending, transporting and storage costs are effectively saved, and the production cost is greatly lowered.

The invention provides a continuous asphalt plant-mixing thermal regeneration mixture pre-mixing machine. The pre-agitation is carried out on a heated milled and planed material; meanwhile, a regenerator is added into the milled and planed material subjected to the pre-agitation; afterwards, an obtained substance is conveyed to a mixing cylinder of an original producing machine to be mixed with a new material. The continuous asphalt plant-mixing thermal regeneration mixture pre-mixing machine comprises a pre-mixing machine main body, an agitating device, a driving device and a regenerator spraying device, wherein the pre-mixing machine main body comprises a supporting seat and an agitating cylinder located on the supporting seat; the agitating cylinder is provided with a cover plate, a feeding hole and a discharge hole; the agitating device comprises two agitating shafts; the agitating shafts are connected with the driving device; the agitating shafts are provided with multiple agitating arms in the axial direction; the agitating arms are provided with agitating teeth; the regenerator spraying device is located at the top of the agitating cylinder.

The invention relates to a pinch roll oil-seal-free speed reducer for the steel industry. One end of an input shaft is sealed through a closed cover, and the other end is in penetrating connection with a through cover. The through cover is in pressing connection with a supporting bearing, on a box, of the input shaft. The part, outside the supporting bearing, of the input shaft is in cup joint with an oil slinger, and two or more oil slinger sheets are evenly distributed on the outer side of the oil slinger in the axial direction. The shaft section of the part, outside the through cover, of the input shaft is in hooping connection with and locks an upper oil shedding shell and a lower oil shedding shell through bolts. Each of the upper oil shedding shell and the lower oil shedding shell isinternally provided with two or more sections of semicircular oil shedding cavities in the axial direction of the input shaft. A complete circular oil shedding cavity is formed by every two semicircular oil shedding cavities, wherein the side wall of the oil shedding cavity is in clearance fit with the outer circumference wall of the oil slinger. Each cavity contains one oil slinger sheet, and the oil slinger sheets make contact with the cavity bottoms of the semicircular oil shedding cavities. An output shaft is in penetrating connection with a through cover structure the same with the inputshaft. The pinch roll oil-seal-free speed reducer is compact in structure and suitable for being safely sealed and used in the steel industry environment.

The invention relates to a kind of self-help chilling airflow puffing apparatus, which involves in dust-precipitator of soot cleaning sack with high temperature and impulse. To solve the problem of that one-side of impulse valve's diaphragm contacts high temperature gas for long haul, the technical scheme features of the invention can be embodied as follows: in the wall of box outside communicating pipe, there is an air inlet port. And the apparatus has a non-return valve on the air inlet port, which is an opening interstice of screw-adjusting valve in orb form, and the opening of valve orients to the lean underside. After adding O type joint ring in adapter port of air storage tank that have be inserted the communicating pipe at the box outside, lock sealed nut of the pipe to the communicating pipe in box outside tightly. It can decline temperature in the condition of impulse valve's diaphragm in order to prevent from high temperature's aging of the impulse valve's diaphragm, so that it can prolong its life span that is the specific mark of the invention.

The invention discloses a transporting and fixing device for a high-voltage electrical apparatus. The transporting and fixing device includes a transferring vehicle. The interior of the transferring vehicle is provided with a cavity. The interior of the cavity is provided with a high-voltage electrical apparatus storing device. The bottom of the cavity is provided with a mounting groove used for mounting a spring. The top of the transferring vehicle is provided with a first box and a second box in sequence. The top of the first box is provided with an air inlet. A filter device is connected with the interior of the first box in an inserted mode. The second box is internally provided with a wind exhausting fan. According to the transporting and fixing device, the upper end of the spraying supports the bottom of the high-voltage electrical apparatus storing device, when the transferring vehicle transfers, supporting and damping effects are played on the high-voltage electrical apparatusstoring device, the fact that a high-voltage apparatus is damaged due to bump borne by the high-voltage apparatus is prevented, outside air enters the first box through the air inlet, by arranging a filter plate, metal micro-particles mixed in the air are filtered, the outside air is filtered and then enters the cavity through a vent opening in the bottom of the first box, and the high-voltage electrical appliances in the high-voltage electrical apparatus storing device is cooled.

The invention provides motor driving equipment and a motor operation system, and relates to the technical field of circuit layout. The motor driving device comprises a circuit board and a motor driving circuit, the circuit board comprises a first area and a second area, the motor driving circuit comprises a bridge type inversion unit arranged in the first area, and the alternating current end of the bridge type inversion unit is used for being electrically connected with a motor to be driven so as to provide alternating current for the motor; the driving unit is arranged in the second area, the output end of the driving unit is electrically connected with the control end of the bridge type inversion unit, and the driving unit is used for providing driving voltage for the bridge type inversion unit. On the basis of the arrangement, the problem that an existing motor drive circuit is unreasonably distributed on a circuit board can be solved.

The invention discloses an electrical equipment detection system based on the Internet of Things. The system comprises a base, electrical power equipment and a protective cover; the top of the base is provided with the electrical power equipment through a positioning seat and screws; the top of the electrical power equipment is provided with the protective cover; one side of the protective cover is provided with a thermometer through screws; a cooling fan is installed at an air inlet in one side of the top end of the protective cover through screws; a detection bin is arranged in the protective cover; a wireless receiving and transmitting module is installed at the top in the detection bin through screws; an alarm is installed at one end of the wireless receiving and transmitting module through a mounting seat; a processor is installed at the bottom in the detection bin through a limiting seat; an electromagnetic sensor is mounted on one side of the processor through a mounting seat; and a temperature sensor is mounted between the electromagnetic sensor and the processor through screws. The electrical equipment detection system based on the Internet of Things is diversified in function, simple to operate and convenient to produce, meets various requirements in use, and is suitable for wide popularization and use.

The invention provides a rubber modifier preparation method, which comprises: weighing rubber powder, an active agent, a plastic polymer material and a softener according to a weight ratio, uniformlymixing, and heating and blending for a certain time at a high temperature to obtain the rubber modifier. According to the present invention, the prepared rubber modifier has excellent aging resistanceand low viscous flow temperature, can be used for dry preparation of rubber asphalt mixtures and wet preparation of rubber asphalt, and can reduce the heating temperature of asphalt and asphalt mixtures so as to prevent the high temperature aging of asphalt and greatly reduce the energy consumption and the carbon emission; the product is easy to store, can effectively save the stirring, transporting and storing costs, and can greatly reduce the production cost; and with the preparation method, various components are mixed and heated to obtain the rubber modifier, such that the method is simple, the requirements on equipment are simple, and the industrial mass-production can be achieved.

A spark plug for an internal combustion engine includes a mounting base and a spark plug cooperating with the mounting base, the mounting base is provided with a left and right penetrating first cavity, A second cavity surrounding the first cavity is disposed in the first cavity end wall, A third cavity having a left-facing opening is arranged in the end wall of the right side of the second cavity, a fourth cavity communicating with the third cavity is arranged in the top wall of the first cavity, a fifth cavity is arranged on the right side of the fourth cavity, and a first rotating cavity penetrating the fifth cavity and communicating with an external space is arrange din the end wall of the right side of the fourth cavity. The device structure of the invention is simple, The spark pluguses the same power source to drive the connection and protection of the ignition device, and realizes the locking of the spark plug in the operation process, the device is convenient to install, meanwhile, the protective device is arranged to prevent the spark plug from aging at high temperature in the combustion chamber, and each process cooperates with each other without affecting each other, thus improving the practicability of the device.

The invention discloses road illuminating lamp holder cleaning equipment comprising a base, an outer shell and an air inlet, the outer shell is installed at the top of the base through bolts, a laserrange finder is arranged on one side of the outer shell through a limiting clamping base, and the air inlet is installed at the lower end of the laser range finder through bolts. An air suction fan isinstalled in the air inlet through an installation base, a pipe disc is installed at one end of the outer shell through a rotating shaft and a bolt, a sleeve is installed at the lower end of the pipedisc through an installation hole, a perforated rubber sleeve is arranged in the sleeve in a sleeved mode, a waterproof solidification layer is arranged on the inner surface layer of the outer shell,a mesh plate is welded to the inner bottom end of the outer shell, a pressure pump is installed at the top of the mesh plate through an installation base, and a UPS is arranged at the top in the outer shell through a limiting plate. The novel road illuminating lamp holder cleaning equipment is diversified in function, easy to operate, convenient to produce, capable of meeting various requirementsin use and suitable for wide application and popularization.

The invention relates to a high-performance polycarbonate composite material and belongs to the technical field of plastic. The high-performance polycarbonate composite material uses a polycarbonate as a matrix and contains various aids. By selecting the types and contents of the aids, all the aids produce the synergistic effect so that the high-performance polycarbonate composite material has excellent flame retardancy, oxidation resistance and abrasion resistance and has a wide application range.

The invention discloses an emergency protection circuit device for battery vehicle charging. The emergency protection circuit device comprises a vehicle body; an alarm lamp is embedded in the left endsurface of the vehicle body; a power supply cavity is formed in the vehicle body; a protection mechanism is arranged in the left end wall of the power supply cavity; a temperature measuring mechanismis arranged in the lower end wall of the power supply cavity; a heat dissipation cavity is formed in the right end wall of the power supply cavity; a heat dissipation mechanism is arranged in the heat dissipation cavity; the left side of the heat dissipation mechanism is connected with a transmission mechanism; a centrifugal mechanism is arranged on the transmission mechanism; a battery vehicle can be charged for a long time through the temperature measuring mechanism to dissipate heat of an internal storage battery, so that high-temperature aging of a circuit caused by a large amount of heatgenerated during internal quick charging is effectively avoided, and abnormal temperature firing, financial loss and larger fire disasters are avoided.

The invention belongs to the technical field of potassium sulfate tail gas treatment, and particularly relates to a Mannheim process potassium sulfate tail gas treatment system. The Mannheim process potassium sulfate tail gas treatment system comprises a Mannheim furnace tail gas generation part, a combustion tail gas cooling part, a hydrogen chloride gas washing part, a tail gas conveying part and a combustion tail gas washing part, in the Mannheim furnace combustion tail gas cooling part, the Mannheim furnace combustion tail gas is cooled to 150-200 DEG C through a recuperator and then cooled to 50-80 DEG C through a carbon crystal cooler; in the combustion tail gas washing part, tail gas is washed by an alkali liquor washing tower and then enters a wet electric dust collector for electrostatic adsorption, and finally the tail gas reaches the emission standard. The device is simple in structure, energy-saving and environment-friendly, the potassium sulfate Mannheim furnace tail gas is comprehensively treated, the hydrogen chloride tail gas is fully recycled to obtain a byproduct high-concentration hydrochloric acid, the tail gas is thoroughly treated, and the environment-friendly emission requirement is met.

The invention discloses a leakage protection circuit of a vehicle-mounted inverter and a corresponding vehicle-mounted inverter, and relates to the field of inverters. The leakage protection circuit comprises a shell, a circuit protection shell, a heat absorption box and a heat absorption aluminum plate, the vehicle-mounted inverter is installed in the shell through screws, and the circuit protection shell is arranged on the other side of the shell; a heat absorption box is installed at one end of the circuit protection shell through screws, an installation cavity is formed in the circuit protection shell, a heat absorption aluminum plate is installed on one side in the installation cavity through screws, and a protection circuit board is installed at the top of the heat absorption aluminum plate through screws. The top of the protection circuit board is provided with a leakage protector through screws, and one end of the leakage protector is welded with a processing chip. The novel vehicle-mounted inverter is provided with a protection circuit, effectively achieves the effects of voltage stabilization and current stabilization, is obvious in heat dissipation effect, has a leakage protection function, and is suitable for being widely popularized and used.

The invention relates to a PP-PE-PEN three-substrate resin composite material, and belongs to the technical field of plastics. The PP-PE-PEN three-substrate resin composite material uses PP, PE and PEN as substrates of the resin composite material; meanwhile, various functional auxiliary agents are contained; by optimizing the types and the contents of auxiliary agents, the PP-PE-PEN three-substrate resin composite material has excellent comprehensive performance; the processing performance is good; the cost is low; the production process is simple.

The invention discloses a spot welding machine with a six-axis robot. The spot welding machine with the six-axis robot comprises a base, a conveying belt body, a six-axis robot body and an automatic electric welding machine main body, wherein a protection cover is installed at the top of the base through a bolt; a placement table is arranged at one side of the protection cover through an installation element, and an air inlet port is formed in the upper end of the placement table; a small cooling fan is installed in the air inlet port through an installation seat; a charge port is formed in the other side of the protection cover; the conveying belt body penetrates through the charge port; an installation plate is installed at one end of the top of the conveying belt body through a bolt; anelectric rotary table is arranged at one side of the installation plate through a screw; a limit clamp is arranged at one side of the electric rotary table through a fixing element; and a fixed plateis arranged at the inner side of the limit clamp. The spot welding machine with the six-axis robot is various in function, simple to operate, and convenient to produce, meets many needs in a use process, and is suitable for being widely popularized.

The invention discloses an anti-loosening nut and production equipment. The anti-loosening nut and production equipment comprises a base, a supporting plate and an automatic nut cold header, wherein sleeves are installed at the two ends of the top of the base through bolts; PP buffer films are installed at the inner bottom ends of the sleeves through screws; pistons are arranged in the sleeves; supporting columns are installed at the tops of the pistons through bolts; the supporting plate is welded to the tops of the supporting columns; a protective cover is installed at the top of the supporting plate through screws; a refrigeration box is installed on one side of the protective cover through screws; a microcomputer time control switch is installed on one side of the refrigeration box through screws; semiconductor refrigeration pieces are installed at the two ends of the top of the refrigeration box through installation grooves; and an air inlet is formed between the semiconductor refrigeration pieces. The anti-loosening nut and production equipment is diversified in function, easy to operate, convenient to produce, capable of meeting various requirements in use and suitable for wide application and popularization.