42results about How to "Absorb" patented technology

The invention discloses a silage pool capable of preventing bottom silage from mildewing and a construction method of the silage pool. The silage pool comprises a silage pool body and a drain pipe, wherein a sand layer, a plastic film and a hay layer are paved at the bottom of the silage pool body from bottom to top sequentially, a fluid collecting tank is arranged on one side of the bottom of the silage pool body and communicated with the drain pipe, and through holes overspreading the film surface are formed in the plastic film. Silage and a silage fluid are rapidly separated by the hay layer, the plastic film layer and the sand layer, the condition that bottom silage is soaked by the silage fluid in the ensiling process is avoided, mildewing of the silage at the bottom of the silage pool body is effectively prevented, besides, the upper part of the silage pool body is sealed, moreover, the only drain pipe communicated with the outside is also covered with the sand layer, the sand layer can better guarantee sealing of the silage pool body, the sealing effect is good, the structure is simple, long-stem storage of silage is guaranteed, mildewing of the silage is avoided, safety guarantee is provided for food for feeding domestic animals, and the silage pool has the characteristics of low cost and convenience in operation.

The invention discloses a MOS transistor driving circuit for suppressing a driving voltage spike, includes push-pull circuit, an RCD absorbing circuit, a gate resistor and an MOS transistor, and is characterized in that: the RCD absorbing circuit comprises an absorbing resistor R, an absorbing resistor C and a TVS, the cathode of the TVS is connected with the grid of the MOS transistor, the anodeof the TVS is connected with one end of the absorption capacitor, the other end of the absorption capacitor is connected with the source of the MOS transistor, and the absorption resistor is connectedwith the TVS transistor in parallel. By adoption of the circuit provided by the invention, the gate-source positive driving spike voltage of the MOS transistor can be effectively suppressed by addingthe RCD circuit, and the turning-off reliability of the MOS transistor can be improved by adding a negative voltage circuit, and the MOS transistor driving circuit for suppressing the driving voltagespike has the advantages of simple structure, reliable performance and like.

The invention relates to the technical field of sanitary product production equipment, and discloses a novel elastic waistline cutting-off tool. The cutting-off tool comprises a support, supporting columns and a motor; the tops of the supporting columns are fixedly connected with a collecting frame, through holes are formed in the inner bottom wall of the collecting frame, a collecting tank is arranged below the collecting frame, and a rotating rod is arranged on one side of the collecting frame; one end of the rotating rod penetrates through and extends into the interior of the collecting frame, a crushing roller which sleeves the outer surface of the rotating rod is arranged inside the collecting frame, and the other end of the rotating rod is fixedly connected with a gear; and a toothedplate is meshed with the back surface of the gear, and a spring is fixedly connected to the top of the toothed plate. According to the novel elastic waistline cutting-off tool, the motor, the rotating rod, the gear, the toothed plate, the spring, a fixing rod and a cutter are arranged so that a rubber string can be cut off, and cut-off rubber string waste materials can be crushed through the motor, the rotating rod and the crushing roller, so that the later processing difficulty is reduced, and the cut-off recovery rate of the elastic waistline can be higher.

The invention belongs to the technical field of motor control, and particularly relates to an integrated power conversion circuit. The invention aims to provide an eight-output integrated secondary power conversion circuit. The integrated power conversion circuit has a closed-loop adjustment function, and a switching integrated secondary power conversion circuit is adopted to supply power to multiple power sources required by a power driving circuit. The integrated power conversion circuit comprises an input filter circuit, a PWM chopper circuit, a regenerative energy absorption circuit, a voltage feedback circuit, a transformer circuit, and a rectifier output circuit, wherein the input filter circuit, the regenerative energy absorption circuit, the transformer circuit and the rectifier output circuit are connected in sequence, and the transformer circuit, the voltage feedback circuit and the PWM chopper circuit are connected in sequence to form a closed loop.

The invention relates to the technical field of polypyrrole wave-absorbing materials, and discloses a ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material and a preparation method thereof. The formula of the ferrite-graphene modified polycarboxyl pyrrole wave-absorbing material comprises the following experimental raw materials: ferric trichloride hexahydrate, anhydrous aluminumsulfate, cobalt chloride hexahydrate, oxalic acid, pyrrole, a synergistic catalyst, graphene and the like. CoAl ferrite Co0.65-0.85Al0.15-0.35Fe2O4 is added to modify polypyrrole, and Fe and Al have excellent electrical conductivity, so the conductivity of the wave-absorbing material is improved; when the wave-absorbing material senses an external magnetic field, a mass induced current can be generated, and an induction magnetic field opposite to the external magnetic field is generated, so the absorbing and shielding effects on electromagnetic waves are achieved; and Co has the magnetic advantages of high resistivity and low high-frequency loss, so the eddy current loss of the magnetic loss in the high frequency band of ferrite is effectively improved when the external magnetic field andthe metal Co compound form interactive resonance.

The invention relates to the technical field of noise reduction of an air conditioner, and particularly discloses a noise elimination and sound insulation device for an outdoor unit of an air conditioner. The noise elimination and sound insulation device for the outdoor unit of the air conditioner comprises a cover body covering the outdoor unit of the air conditioner, wherein an air inlet and anair outlet are arranged on the cover body, the air inlet is far away from the air outlet, and the air inlet is lower than the air outlet; a first space and a second space which are used for separatingthe space around the outdoor unit of the air conditioner are arranged in the cover body, the air inlet end of the first space communicates with the air inlet of the cover body, and the air outlet endof the first space communicates with the air inlet end of an air inlet grille of the outdoor unit of the air conditioner; the air inlet end of the second space communicates with the air outlet end ofa cooling fan of the outdoor unit of the air conditioner, and the air outlet end of the second space communicates with the air outlet of the cover body; and an air inlet silencing assembly is arranged in the first space, and an air outlet silencing assembly is arranged in the second space. The scheme provided by the invention is used for solving the problems that in the prior art, the quality ofa sound environment where people live is reduced due to noise pollution caused by the operation of an outdoor unit of an air conditioner, and the normal sleep and rest of the people are seriously affected.

The invention discloses a composite asphalt stress absorption membrane and a preparation method thereof, belongs to the field of road construction, and particularly relates to an anti-cracking waterproof sealing membrane applicable to asphalt pavement. The composite asphalt stress absorption membrane comprises a wear-resistant isolation layer, an upper composite layer, a base, a lower composite layer and a protection layer arranged sequentially from top to bottom; the wear-resistant isolation layer consists of quartz sand of 20-40 meshes; the upper composite layer and the lower composite layer both consist of high molecular polymer modified asphalt; a high-density polyethylene (PE) membrane is adopted for the protection layer; the base is high-modulus base cloth; the high-modulus base cloth is polyester filament geotextile or polyester glass fiber cloth. The preparation method comprises the following steps: 1) preparing high molecular polymer modified asphalt of the upper composite layer and lower composite layer; 2) combining the upper composite layer, the lower composite layer and the base; 3) pasting the protection layer and the wear-resistant isolation layer; and 4) cooling, cutting and rolling.

The invention belongs to the technical field of air compressor systems, and particularly discloses an energy saving system of an air compressor. The energy saving system comprises an air compressor body, a control system, a fixed frame, an air storage tank, a sound absorption cotton layer and an elastic cotton layer. A bearing block is fixed to the bottom of the air compressor body and is in sliding connection with the inner wall of the fixed frame. A limiting sliding groove is formed in the inner wall of the fixed frame. Sliding blocks are fixed to the two sides of the bearing block and are in sliding connection with the limiting sliding groove. A bottom plate is fixed to the bottom of the fixed frame. A moving groove is formed in the bottom plate. Symmetric sealing doors are arranged inthe moving groove in a sliding manner, and the sealing doors are attached to the front face of the air compressor. An air outlet of the air compressor communicates with the air storage tank through anair guide pipe. A control cabinet is arranged at the top of the air compressor, and a PID controller, a frequency conversion driver, a controller, an alarm and a timer are arranged in the control cabinet.

The invention relates to the technical field of pollution abatement, in particular to a composition and application of the composition to eliminating air pollutants. The composition which comprises oyster mushrooms, mulberries, rhododendron leaves, aquatic plant leaves and willow leaves and extractive and the application of the composition are provided. A product for eliminating the air pollutants and a method for eliminating the air pollutants are provided. Experiments indicate that the elimination rate of the product for eliminating the air pollutants on nicotine can reach 76% or above, the elimination rate of the product for eliminating the air pollutants on hydrocyanic acid also reaches 78%, and meanwhile the elimination rate of the product for eliminating the air pollutants on PM2.5 particles can reach 25% or above.

The invention provides a display panel. The display panel comprises a substrate; the thin film transistor is arranged on one side of the substrate, the thin film transistor comprises an active layer, and the active layer comprises a channel; the shading conductive layer is arranged in the thickness direction of the display panel, the shading conductive layer and a channel of the active layer are overlapped, and the shading conductive layer comprises a first light absorption layer; and the first conductive layer is positioned on one side, far away from the substrate, of the first light absorption layer.

The invention discloses a hayshed suitable for a karst region. The hayshed comprises a hayshed body, a shed top covering the top end of the hayshed body, and a shed bottom. The shed bottom is sequentially provided with a fine gravel layer, a plant ash layer and kraft paper from bottom to top. Fine through holes are laid in the whole surface of the kraft paper. By arranging a damp-proof structure formed by the fine gravel layer, the plant ash layer and the kraft paper on the shed bottom, hay affected with damp in the hayshed can be subjected to water absorption, the damp-proof effect is greatly improved, mould discoloration and deterioration of the hay are avoided, the use life of the hay is prolonged, the use safety of the hay is improved, and the situation that growth and meat quality are affected by ill falling and nutritional ingredient loss caused when cattle and sheep eat the hay is avoided; compared with an existing hayshed, the use life of the hayshed of the structure can reach 6-8 months in the rainy season, the damp-proof effect is obviously superior to that of the existing hayshed, and the hayshed further has the advantages of being simple in structure, low in cost and convenient to manufacture, use and maintain.

The invention discloses an electrode boiler closed type circulating water system with a voltage stabilizing function. The electrode boiler closed type circulating water system comprises an electrode boiler, a plate type heat exchanger, a circulating pump, a pressure transmitter which is connected to the upper side surface of the electrode boiler through a gas path pipeline, a control system, a liquid level meter, a gas storage tank which is connected to the upper side surface of the electrode boiler through a gas inlet pipeline, a gas inlet control valve, a gas outlet control valve, a water supplementing pipeline which is connected to a lower circulating water pipeline, a pure water tank which is connected to the water supplanting pipeline for supplying water, a water supplementing pump which is mounted on the water supplementing pipeline and is connected to the control system through a circuit cable, and a water discharge valve mounted on the bottom of the electrode boiler. The electrode boiler closed type circulating water system with the voltage stabilizing function disclosed by the invention does not need to additionally equip with a voltage stabilizing device, has a self-voltage-stabilizing function, is stable in pressure, is simple in structure, is stable in operation, is low in investment cost, and can be widely applied to the field of clean energy heating and power plant flexible peak regulation.

The present invention discloses a diesel engine hood. The diesel engine hood comprises an engine hood body, the top part of the engine hood body is provided with a top chute, and cooling metal sheetsformed integrally with the engine hood body are arranged inside the top chute and are spaced equally. Support projections used for installing a dust shield are disposed inside left and right part of the top chute. Venting holes are formed in the middle part of the dust shield. A bottom chute is disposed under the engine hood body and is internally provided with an acoustic panel, and noise reducing bosses are formed on the surface of the acoustic panel. Heat of the engine hood body is absorbed by the cooling metal sheets and dissipates from the venting holes formed in the dust shield, facilitating cooling of an engine body. The acoustic panel is convenient to assemble and disassemble. Noise produced by the engine body is transferred to and thus absorbed by the noise reducing bosses on thesurface of the acoustic panel.

The invention belongs to the technical field of plastering, and particularly relates to intelligent clamping and laying equipment for practical training of students. The intelligent clamping and laying equipment comprises a plastering spraying execution end, a six-joint mechanical arm, a material conveying pipe, a material barrel and a travelling platform, wherein a second motor works to drive a sixth gear to rotate, the sixth gear rotates to drive a seventh gear to rotate, the seventh gear rotates to drive an installing rod to rotate, the installing rod drives a rotating shell to rotate, meanwhile, the installing rod rotates to drive a fixed rod installed on the installing rod to rotate, then a second flow stabilizing shell on the installing rod is driven to rotate, through rotation of the rotating shell, bubbles in coating entering the rotating shell can be stirred, distribution of the bubbles is reduced, and meanwhile, the bubbles in the coating are absorbed through a second flow stabilizing shell installed on the installing rod. According to the intelligent clamping and laying equipment, the coating enters the rotating shell through a notch and does not enter the rotating shell from the upper side, and the design can ensure that the coating entering the rotating shell from the upper side does not press the bubbles in the coating or press the bubbles into the rotating shell under the action of gravity.

The invention relates to the technical field of fabric manufacturing, and discloses a durable antibacterial high-breathability polyester warp-knitted fabric which comprises a fabric outer layer, the fabric outer layer comprises cation yarns and polyester yarns, an upper elastic adhesion layer is arranged on the lower surface of the fabric outer layer, a breathable layer is arranged on the lower surface of the upper elastic adhesion layer, breathable holes are formed in the breathable layer, and the upper elastic adhesion layer is made of polyester fibers. An outer water absorption layer is arranged below the breathable layer, an antibacterial layer is arranged on the lower surface of the outer water absorption layer, an inner water absorption layer is arranged on the lower surface of the antibacterial layer, a lower elastic adhesion layer is arranged on the lower surface of the inner water absorption layer, and a fabric inner layer is arranged on the lower surface of the lower elastic adhesion layer. According to the durable antibacterial high-breathability polyester warp-knitted fabric and the manufacturing process thereof, the problems that an existing warp-knitted fabric is poor in breathability and moisture penetrability, antibacterial effect and dimensional stability can be solved.

The invention discloses pipe joint sealing equipment. The pipe joint sealing equipment comprises a small inflation pump and airbags; the outer diameter of an inner fixing ring is smaller than the inner diameter of a pipe; the inner diameter of an outer fixing ring is larger than the outer diameter of the pipe; the airbags are annular; two airbags are arranged; mighty glue layers are arranged on the outer walls of the airbags, and are bonded between the inner fixing ring and the outer fixing ring; an air hole is formed in the outer fixing ring or the inner fixing ring; and a plug is arranged in the air hole. The pipe joint sealing equipment is convenient to operate, low in cost and high in efficiency.