43results about How to "Need to reduce stress" patented technology

The invention relates to a hay bundle processing machine and a hay bundle processing method, in particular to a device and a method which can be used for cutting a large square hay bundle into hay slices, conducting secondary compression forming after the hay slices are cut into sections and conducting bundling, section cutting and collection operation to the formed hay bundles. A device for processing a large square hay bundle into high-density small square hay bundles comprises a feeding mechanism, a large square hay bundle slicing mechanism, a hay slice separation and conveying mechanism, a hay slice section-cutting mechanism, a secondary compression mechanism, a bundling mechanism, a formed hay bundle section-cutting mechanism and a formed hay bundle collection mechanism. The device and the method have the advantages that the large square hay bundle can be processed into the high-density small square hay bundles, the final products can be tidily collected and the subsequent operation efficiency is improved.

The invention discloses an internal high-pressure forming device and a forming process, and aims to provide a process and matching devices capable of forming pipes under the condition of relatively low pressure. A pipe billet is firstly formed into a pipe shape with a small R (small radian of a bent portion) by the aid of force of a press fitting die of a press machine and liquid pressure in a pipe, and forming is repeated for many times if necessary until the pipe shape is completely close to a die cavity. The press machine is driven to completely close an upper die and a lower die, internal pressurization is continued after the dies are completely closed, and the pipe shape with the small R is expanded into a pipe shape with a large R (large radian of the bent portion) by the aid of internal pressure. Besides, liquid flow channels are arranged in plugs on two sides of the die, double-end water injection can be realized, and pressurizing efficiency is improved.

The invention relates to the technical field of a heating system or device, particularly to a parallel-serial type drying and heating system. According to the parallel-serial type drying and heating system, the resistance of a heat exchanger system is reduced, the demands for pressure of a flue gas induced draft fan are reduced, the energy is reasonably distributed, the heating up time for starting of a black furnace of a drying room is reduced, and the energy consumption is reduced. The parallel-serial type drying and heating system comprises a drying room body, a heating combustion furnace, a heat exchanger group, an induced draft fan and a waste heat exchanger, wherein the drying room body comprises a drying room first heating area, a drying room second heating area, a drying room first heat preservation area and a drying room second heat preservation area; the heat exchanger group comprises a first heat exchanger, a second heat exchanger, a third heat exchanger and a fourth heat exchanger; the heating combustion furnace is communicated with the first heat exchanger and the third heat exchanger through a first communicating pipe; the heating combustion furnace is communicated with the second heat exchanger and the fourth heat exchanger through a second communicating pipe; an air inlet end of the first communicating pipe is communicated with an air inlet end of the second communicating pipe; and a communicating position of the air inlet ends is provided with a distribution valve.

The invention relates to the chemical field and specifically discloses a hydrogen recovery and purification system and a control method thereof. The system comprises a tail gas processor, a water removal device, a compressor, a first buffer tank, a first gas separation membrane module, a first hydrogen storage device and a second buffer tank, the above parts are orderly connected, an exhaust outlet and an air inlet of an industrial device are respectively connected to the tail gas processor and the second buffer tank, the compressor compresses the gas until pressure of greater than or equal to5 bar, a membrane material of the first gas separation membrane module is prepared from a ceramic material, and a hydrogen storage material of the first hydrogen storage device is a metal alloy hydrogen storage material. The tail gas processor initially purifies hydrogen. Through the separation membrane prepared from the ceramic material, the hydrogen is further purified until the hydrogen purityof 99% or more. Through the alloy hydrogen storage material, the hydrogen concentration is increased to the 5N level. The system solves the problem that the hydrogen recovery and recycling device inthe non-pan semiconductor industry is not suitable for hydrogen recovery and recycling in the pan semiconductor industry.

The invention provides a scale removal pipeline and a using method thereof and belongs to the technical field of conveying pipelines. The scale removal pipeline comprises a first peristaltic pump, a feeding pipe and a material conveying hose. One end of the feeding pipe extends into a liquid material pool, and the other end of the feeding pipe communicates with the feeding end of a hose of the first peristaltic pump. One end of the material conveying hose communicates with the discharging end of the hose of the first peristaltic pump, the other end of the material conveying hose extends the position above a discharging pool or into the discharging pool, and a rubber check valve is arranged at the other end of the material conveying hose. The problems that during actual application of an existing scale removal pipeline, machine halt needs to be conducted for clearing when negative pressure is adopted, the hose is prone to being damaged when positive pressure is adopted, pipeline manufacturing cost is high, and valves connected between the pipelines are prone to scaling, so that the scale removal effect is not ideal are solved.

The invention relates to a ceramic bioreactor and a sewage treatment method thereof. The ceramic bioreactor comprises a five-section multistage bioreaction tank system and an immersed ceramic bioreactor, wherein the five-section multistage bioreaction tank system is composed of reaction tanks, an aeration plant and a sludge reflux pump. The ceramic bioreactor can provide a construction-free installation-free solution for village and town sewage, industrial wastewater, high-grade communities, villas and other places in need of semi-centralized / dispersed sewage treatment. The water outlet flux can be enhanced by 10 times as compared with the traditional MBR (membrane bioreactor) system (up to 100-150L / m<2>.h), thereby lowering the investment cost; the comprehensive aeration energy consumption is lowered by 30% as compared with the existing MBR system with dephosphorization and denitrification functions, thereby lowering the operating cost; and the ceramic bioreactor can effectively lower and even avoid the membrane pollution problem of the MBR system, thereby lowering the system maintenance and replacement cost.

The present invention provides an ejector unit and a fuel cell hydrogen circulation system having the same, wherein the ejector unit comprises a first ejector and a second ejector connected in series,the first ejector comprises: a first jet flow inlet, a first drainage inlet, a first jet flow hole communicating with the first jet flow inlet, a first mixing space communicating with the first drainage inlet and the first jet flow hole, and a first outlet communicating with the first mixing space; the second ejector includes: a second jet flow inlet, a second drainage inlet communicating with the first outlet, a second jet flow hole communicating with the second jet flow inlet, a second mixing space communicating with the second drainage inlet and the second jet flow hole, and a second outlet communicating with the second mixing space; the structure that the first jet flow inlet is connected with the second jet flow inlet in parallel and the first drainage inlet is connected with the second drainage inlet in series is formed. According to the ejector unit and the fuel cell hydrogen circulation system of the invention, flexible and various ejection combinations can be realized to meetthe requirements of hydrogen circulation volume under different power conditions.

The invention relates to a method for removing brominated-flame-retardant pollutant in water. According to the method, the brominated-flame-retardant pollutant is removed through coupling filtering by utilizing magnetic ion exchange resin, and concretely, the magnetic ion exchange resin and quartz sand are uniformly mixed according to a volume ratio of (3-5):(1-2) and are used as a filling material filling an ion exchange column for processing water containing the brominated-flame-retardant pollutant. Compared with the prior art, the method has the advantages of high efficiency, low cost and the like.

The present invention provides an internal combustion engine. The present invention relates to an internal combustion engine (100) comprising a first set of cylinders comprising: a first two-stroke compression cylinder (102) housing a first compression piston (122) connected to a first crank shaft (150); an intermediate two-stroke compression cylinder (104) housing an intermediate compression piston (124), wherein said second two-stroke compression cylinder (104) is configured to receive compressed gas from said first two-stroke compression cylinder (102); and a first four-stroke combustion cylinder (108) housing a first combustion piston (128), wherein said first four-stroke combustion cylinder (108) is configured to receive compressed gas from said intermediate two-stroke compression cylinder (104); wherein the internal combustion engine further comprises a second set of cylinders comprising: a second two-stroke compression cylinder (106) housing a second compression piston (126) connected to said first crank shaft (150), wherein said second two-stroke compression cylinder (106) is configured to provide compressed gas to said intermediate two-stroke compression cylinder (104); and a second four-stroke combustion cylinder (110) housing a second combustion piston (130), wherein said second four-stroke combustion cylinder (110) is configured to receive compressed gas from said intermediate two-stroke compression cylinder (104); wherein each one of said intermediate compression piston (124) and said first (128) and second (130) combustion pistons are connected to a second crank shaft (154), said second crank shaft (154) being configured to rotate with a speed of at least twice the speed of said first crank shaft (150).

The invention relates to a device for detecting the dynamic-static rigidity of a rolling bearing. The device comprises a rotating motor, center shaft head displacement sensors I and II, a to-be-detected rolling bearing displacement sensor, center shaft tail displacement sensors I and II, a flexible coupler, a center shaft, a supporting bearing seat, a to-be-detected bearing, a pressure sensor, a jack and a variable frequency vibrator. The rotating motor is connected with the central shaft; two displacement sensors are respectively mounted above and below two ends of the central shaft; a to-be-detected bearing is fixedly installed in the middle of the center shaft, the to-be-detected rolling bearing displacement sensor is arranged at the lower end of the to-be-detected bearing, the jack and the variable-frequency vibrator provide a load with vibration frequency for the to-be-detected bearing, and the pressure sensor is used for detecting the size of the load. According to the detection device, the dynamic stiffness and the static stiffness of the rolling bearing are measured under the same device, the influence of the load frequency and the rotating frequency of the bearing is fully considered, and the measurement of the dynamic stiffness of the bearing is more accurate.

The invention provides ventilation apparatus for an automatic poultry house. The apparatus comprises a poultry house and an exhaust fan; an exhaust hole is formed in the upper end of the side wall ofthe poultry house; the exhaust fan is arranged in the exhaust hole; an air inlet device of the poultry house is arranged in an inner cavity of the poultry house; the air inlet device of the poultry house is in penetrating connection with the upper end of a connecting pipe; the lower end of the connecting pipe reaches the outer cavity of the poultry house and is in penetrating connection with a temperature control device; and the temperature control device is in penetrating connection with an air inlet pipe. According to the invention, the defects in the prior art are overcome, the design is reasonable, the structure is compact, and various dust and germs can be effectively prevented from entering the poultry house through purification treatment and temperature control of outside air. Meanwhile, the temperature is effectively controlled to be close to an optimum required level of poultry, so that optimal growth requirements of the poultry can be met, stress requirement can be reduced, and production performance of the poultry can be fully exerted.

The invention discloses an air compression system of a water spraying screw compressor and a lubrication and sealing method. The air compression system comprises a screw compressor, wherein an exhaustpipeline of the screw compressor is provided with a heat exchanger; gas and condensate water in the exhaust pipeline are cooled and conveyed to a steam-water separator through the heat exchanger; cooling water obtained through separation of the steam-water separator is conveyed to the water storage tank; a macromolecule thickening agent is added into the cooling water in the water storage tank; and under driving of exhaust pressure of the compressor, the water storage tank introduces the cooling water added with the macromolecule thickening agent into a working cavity of the screw compressorthrough an output pipeline to play a role in lubrication and sealing. The invention further provides a lubrication and sealing method of the air compression system of the water spraying screw compressor. The operation is easy, leakage of the working cavity of the compressor can be reduced, the volume efficiency and the air volume of the whole compressor are improved, and meanwhile, the lubricatingeffect between rotors of the compressor is improved.

The invention relates to the technical field of a heating system or device, particularly to a parallel-serial type drying and heating system. According to the parallel-serial type drying and heating system, the resistance of a heat exchanger system is reduced, the demands for pressure of a flue gas induced draft fan are reduced, the energy is reasonably distributed, the heating up time for starting of a black furnace of a drying room is reduced, and the energy consumption is reduced. The parallel-serial type drying and heating system comprises a drying room body, a heating combustion furnace, a heat exchanger group, an induced draft fan and a waste heat exchanger, wherein the drying room body comprises a drying room first heating area, a drying room second heating area, a drying room first heat preservation area and a drying room second heat preservation area; the heat exchanger group comprises a first heat exchanger, a second heat exchanger, a third heat exchanger and a fourth heat exchanger; the heating combustion furnace is communicated with the first heat exchanger and the third heat exchanger through a first communicating pipe; the heating combustion furnace is communicated with the second heat exchanger and the fourth heat exchanger through a second communicating pipe; an air inlet end of the first communicating pipe is communicated with an air inlet end of the second communicating pipe; and a communicating position of the air inlet ends is provided with a distribution valve.

The invention discloses a flow-uniform bipolar plate for a fuel cell, the bipolar plate is mounted by fitting a membrane electrode, after the bipolar plate is mounted, a hydrogen flow channel and an air flow channel are respectively formed between two sides of the bipolar plate and the membrane electrode, and a cooling liquid flow channel is arranged in the middle of the bipolar plate; the sectional areas of the cooling liquid flow channel, the hydrogen flow channel and the air flow channel are gradually increased from the hydrogen, air and cooling liquid inlet end of the electric pile to the direction far away from the hydrogen, air and cooling liquid inlet end of the electric pile by the cooling liquid flow channel section in the middle of the bipolar plate and the hydrogen flow channel and the air flow channel formed by the two sides of the bipolar plate and the membrane electrode. By adopting the bipolar plates with different flow channel sectional areas, the flow and pressure of a plurality of bipolar plate flow channels are balanced, the pressure requirement on an inlet is reduced, and the performance and reliability of the fuel cell are improved.

The invention belongs to the field of small household electric appliances, and particularly relates to a floating clip type electric hair remover, which comprises a shell, a power device fixedly assembled in the shell and a hair removing system component of which upper part is exposed on an opening of the handheld shell. The hair removing system component is rotationally arranged on a centre fixing shaft and is connected with the power device; the hair removing system component consists of a group or a plurality of groups of disc components assembled with each other at intervals in a mode of narrow upper part and wide lower part; each disc component comprises a disc and a hair removing clip arranged on the disc; and an elasticity regulator is also arranged between the disc and the hair removing clip. Compared with the prior art, the electric hair remover has the advantages of high hair removing efficiency and smaller vibration and noise, minimized uncomfortable feeling for a user during hair removal, simple structure, convenient maintenance, little abrasion and low energy consumption.

A novel energy-saving ball press machine comprises a feeding system, a roller system, a transmission system and a hydraulic system. The roller system is arranged on a base and comprises two sets of bilateral parallel opposite spindle devices, each spindle device comprises a spindle, a ball socket press roller, a front bearing block and a rear bearing block, a pull cylinder is horizontally arranged between a pair of bilateral corresponding bearing blocks, the piston rods of two sides of the pull cylinder are rotatably connected with upper corners close to the inner sides of the bilateral corresponding bearing blocks respectively, and the base is connected with the lower corners close to the inner sides of the bilateral corresponding bearing blocks. The novel energy-saving ball press machine is simple in design and few in consumptive material, and the press rollers are stable in running. When the novel energy-saving ball press machine runs, a hydraulic pump station drives the pull cylinder to simultaneously apply force on the upper corners of the inner sides of the bilateral bearing blocks, the bilateral bearing blocks rotate backwards by taking a connecting shaft of the lower corners of the inner sides as a rotating shaft to drive the bilateral press rollers to close or keep away, and the pressure needed by roller press forming is ensured. Compared with traditional technology that the cylinder directly drives a press roller shaft, and the novel energy-saving ball press machine has the advantages of low hydraulic pump station pressure, few steel consumption and press roller running stability.

The invention discloses a double-piston positive-negative pressure pneumatic pump fixed axis swing prosthetic knee joint which is applicable to an auxiliary instrument for users without single knee joints. The assembly weight of a whole prosthesis can be effectively relieved, the joint flexibly swings, assistance in the swing process of the prosthesis and buffer in change of a swing direction are realized by the aid of positive pressure and negative pressure of a double-piston positive-negative pressure pneumatic pump, and running reliability is enhanced by the aid of double pistons. The joint is simple and reliable in design and provided with easily adjusted adjustment holes, and the users without single knee joints and with different weights can be adjusted in a targeted manner.

The invention relates to a fire-fighting facility, in particular to a fire-fighting and smoke removing method and device. The fire-fighting and smoke removing device comprises a directional air blowing device, an anion generator and an air guide device which are sequentially connected with one another. The fire-fighting and smoke removing device can be a portable device and can also be of an air guide structure for supporting, moving and guiding air at the same time; meanwhile, the tail end of the air guide structure is provided with an air suction fan capable of sucking air from top to bottom; and the lower part of the air suction fan is provided with a smoke particle collector. By adopting the fire-fighting and smoke removing device, the effect of fire-fighting and smoke removal is remarkably improved; by means of a wearing type, a throwing type and a robot automatic walking manner, the convenience, the rapidness and the effectiveness of fire-fighting and smoke removal are improved;and the life safety of firefighters is guaranteed, and the fire-fighting ability of the firefighters is improved.

The invention discloses a linear motor structure and a magnetic suspension train. The linear motor structure comprises a rotor (1) and a hollow stator (3), and a stator winding (2) arranged at the yoke of the hollow stator (3), wherein a tooth magnetic conductive material (4) is arranged at a tooth part of the hollow stator (3), and / or, and a yoke magnetic conductive material (5) is arranged at the yoke of the hollow stator (3). In the prior art, a permanent magnetic drive motor with an iron core has too large normal force when being used in the magnetic suspension train, a permanent magneticdrive motor without an iron core has too small normal force, but the two motors consumes higher power. The invention solves the problem in the prior art and saves energy.

The invention relates to a hay bundle processing machine and a hay bundle processing method, in particular to a device and a method which can be used for cutting a large square hay bundle into hay slices, conducting secondary compression forming after the hay slices are cut into sections and conducting bundling, section cutting and collection operation to the formed hay bundles. A device for processing a large square hay bundle into high-density small square hay bundles comprises a feeding mechanism, a large square hay bundle slicing mechanism, a hay slice separation and conveying mechanism, a hay slice section-cutting mechanism, a secondary compression mechanism, a bundling mechanism, a formed hay bundle section-cutting mechanism and a formed hay bundle collection mechanism. The device and the method have the advantages that the large square hay bundle can be processed into the high-density small square hay bundles, the final products can be tidily collected and the subsequent operation efficiency is improved.

The invention relates to the field of closed die forging and discloses a closed die forging die and a closed die forging method. The closed die forging die comprises an upper die body and a lower die body. A material barrel is arranged on the upper die body or the lower die body. The closed die forging die further comprises a stamping rod which stretches into the material barrel. The closed die forging method comprises the steps that a, a blank is heated, the closed die forging die is opened, and the blank is put into a die impression of the closed die forging die; b, the upper die body and the lower die body are closed and locked; c, the stamping rod stamps downwards, so that the die impression is filled with the blank; and d, after the blank is subjected to die forging and forming, the closed die forging die is opened, and a forging is taken out. According to the closed die forging die and the closed die forging method, the technical scheme is adopted, and the requirement for the pressure of a forging machine in the die forging process can be reduced, so that the die cavity is filled with the blank in an extrusion mode, the forging reject ratio is decreased, and the forging production cost is reduced.

The invention relates to a fuel nozzle, a combustion chamber, a gas turbine and a method for preventing fuel coking in the fuel nozzle. The fuel nozzle includes an inlet, a nozzle, and a fuel delivery channel between the inlet and the nozzle, and the fuel is delivered to the nozzle of the fuel nozzle through the inlet and the fuel delivery channel in sequence, and the inlet is used for The fuel oil input from the external oil circuit into the fuel nozzle is input into the oil delivery channel, the inlet part includes an oil inlet port, and a first distributing valve located downstream of the oil inlet port, including an oil inlet chamber, and an oil return port. chamber, and a plunger arranged in the oil inlet chamber.

The invention discloses an air purification module and an air conditioner indoor unit. The air purification module comprises a spray head, the spray head is arranged in a purification air duct, the spray head and a rotating body are arranged in a spaced mode, the spray head is used for providing water sprayed to the rotating body and comprises a pipe body, a water outlet channel extending in the water outlet direction is formed in the pipe body, and the section of the water outlet channel is circular; and a water inlet hole and a water outlet hole are formed in the pipe body, the water outlet channel is communicated with the water inlet hole and the water outlet hole, the axial direction of the water outlet hole extends in the water outlet direction, the water outlet end of the water outlet hole is gradually expanded in the water outlet direction, and the axial direction of the water inlet hole and the center line of the water outlet channel form an included angle and are eccentrically arranged. In the embodiment of the invention, water enters the pipe body through the water inlet hole, forms a spiral water flow in the water outlet channel, and is spirally sprayed out from the gradually-expanded water outlet hole to form divergent water particles to be sprayed on the rotating body, and a tangential initial speed is provided for the divergent water particles through the spray head, so that the refining effect of the water particles is improved, and the purification effect is improved.

The invention discloses a novel hydraulic vibration system and a road roller. The vibration system comprises a hydraulic pump, a first hydraulic motor and a second hydraulic motor, wherein the workingend of the hydraulic pump is connected with the first hydraulic motor and the second hydraulic motor in parallel, the working end of the first hydraulic motor is connected with a first driving shaft,and the working end of the second hydraulic motor is connected with a second driving shaft; the first driving shaft is connected with a first vibration exciter, and the second driving shaft is connected with a second vibration exciter; the hydraulic pump works to drive the first driving shaft and the second driving shaft to rotate at the same time through the first hydraulic motor and the secondhydraulic motor, the first driving shaft drives the first vibration exciter to work, and the second driving shaft drives the second vibration exciter to work. The two hydraulic motors are connected inparallel, the pressure requirement of the system is low, and the service life of hydraulic system elements is relatively long.

The invention provides ventilation apparatus for an automatic poultry house. The apparatus comprises a poultry house and an exhaust fan; an exhaust hole is formed in the upper end of the side wall ofthe poultry house; the exhaust fan is arranged in the exhaust hole; an air inlet device of the poultry house is arranged in an inner cavity of the poultry house; the air inlet device of the poultry house is in penetrating connection with the upper end of a connecting pipe; the lower end of the connecting pipe reaches the outer cavity of the poultry house and is in penetrating connection with a temperature control device; and the temperature control device is in penetrating connection with an air inlet pipe. According to the invention, the defects in the prior art are overcome, the design is reasonable, the structure is compact, and various dust and germs can be effectively prevented from entering the poultry house through purification treatment and temperature control of outside air. Meanwhile, the temperature is effectively controlled to be close to an optimum required level of poultry, so that optimal growth requirements of the poultry can be met, stress requirement can be reduced, and production performance of the poultry can be fully exerted.

The invention relates to a stable horizontal fuel gas generator and a gas generating process thereof and belongs to the technical field of fuel gas generation equipment. The stable horizontal fuel gas generator is characterized in that an air bubble adjusting plate (3) is arranged in the middle of a tank body, meshes are formed in upper and lower plate surfaces of the air bubble adjusting plate (3), and the air bubble adjusting plate (3) is filled with active carbon balls (302) which account for 18-22% of the volume of the air bubble adjusting plate (3); a plurality of bubblers (6) in the tank body (1) are arranged below the air bubble adjusting plate (3) through a lifting mechanism; and the bubblers (6) and an air inlet pipe (2) are connected through telescopic air inlet branch pipes. During gas generation, the bubblers bubble 0.4-0.5m below the oil level. Air and a fuel material are fully contacted and mixed in a relatively shallow liquid level, so that the pressure demand is reduced, and meanwhile, the depths of the bubbles are determined, so that the gas generating quality is stable.

The invention discloses a supercharging cooling structure for a gas turbine moving blade by utilizing the rotation effect. The structure is specifically composed of a flow-to-intermediate partition plate, a multi-stage Z-shaped rotary booster cavity, and an impact-convection series cooling layer, all of which are located inside the gas turbine moving blades, and the Z-shaped rotary booster cavity passes through the separation pressure. The surface and suction surface supply air to the cavity and organize the radial flow direction in the air supply cavity, and use the rotating Coriolis force to increase the air supply pressure of the shock-convective series cooling layer and reduce the air supply pressure gradient between the suction and pressure surfaces; shock- The convection series cooling layer plate increases the Reynolds number by collecting the impinging cooling air flow, and adopts the radial guide baffle with the guide slit to enhance the transverse vortex formed by the rotating Coriolis force in the radial convection heat exchange chamber, which effectively improves the heat transfer rate. thermal coefficient. The invention can utilize the rotation effect to reduce the demand for the cooling air extraction pressure and air extraction volume, and effectively enhance the cooling performance.