77results about How to "Avoid depressurization" patented technology

The invention includes an engine oil collector, an engine oil pump, an engine oil filter, a cylinder, a cylinder head, an oil sump and a frame. A main oil passage, an auxiliary oil passage connected with the oil filter, an oblique oil passage and a vertical oil passage are disposed in the cylinder. An oil passage, an oil sump oil passage and a frame oil passage are disposed in the oil sump and the frame mechanism separately. The run of the basic oil passage is: the oil collector to the oil pump to the frame oil passage to the auxiliary oil passage to the oil filter to the main oil passage to the oblique passage to the vertical passage.

The invention discloses a liquid inoculation machine for shiitake. The liquid inoculation machine for the shitake comprises a stand, an upper controller, a location displacement conveying device, a sterilizing device, a punching device, an inoculation device and a bag discharge device, wherein the upper controller is mounted on the stand, the location displacement conveying device is mounted at the lower part of the stand and connected with the upper controller, the sterilizing device is mounted at the upper part of the stand and located above the location displacement conveying device, the punching device is mounted on the stand, located above the location displacement conveying device and connected with the upper controller, the inoculation device is located above the location displacement conveying device and connected with the upper controller, the bag discharge device is located above the location displacement conveying device and connected with the upper controller, and the sterilizing device, the punching device, the inoculation device and the bag discharge device are mounted above the location displacement conveying device in sequence.

The invention discloses a cleaning head device and an on-line cleaning robot of a condenser. The cleaning head device comprises a cleaning nozzle, a mechanical arm connecting device, an elastic reset device, a front electrifying solenoid and a rear electrifying solenoid, wherein the cleaning nozzle is hollow and is tubular, the mechanical arm connecting device comprises a front structural part, a rear structural part and a connecting plate, the cleaning nozzle is sleeved with both the front structural part and the rear structural part, the front structural part and the rear structural part are connected through the connecting plate, the cleaning nozzle is sleeved with both the front electrifying solenoid and the rear electrifying solenoid, the front electrifying solenoid and the rear electrifying solenoid are located between the front structural part and the rear structural part, the rear electrifying solenoid is fixedly connected with the rear structural part, the front electrifying solenoid is fixedly connected with the cleaning nozzle, the elastic reset device is arranged between the front electrifying solenoid and the front structural part, and a sealing gasket is arranged on the front end face of the cleaning nozzle. The cleaning robot is arranged in a water chamber of the condenser and comprises the cleaning head device, a mechanical arm, a connecting pipe and a booster pump. The on-line cleaning robot of the condenser is simple in structure, convenient to install and use, and low in maintenance cost.

The invention belongs to the technical field of spraying machinery, and particularly relates to an external soil spraying machine and a special two-stage energy-saving high-lift underflow pump for the external soil spraying machine. The underflow pump comprises a transmission shaft, a pump body, a bearing chamber and a coupling, wherein the pump body comprises a one-stage pump body, a two-stage pump body and a two-stage feed pump body; a one-stage impeller is fixedly mounted at the right end of the transmission shaft in a sleeving manner; an elbow is communicated between the one-stage pump body and the two-stage feed pump body; a guard plate is arranged between the two-stage feed pump body and the two-stage pump body; a locating sleeve is mounted on the transmission shaft between the two-stage feed pump body and the two-stage pump body in a sleeving manner; a two-stage impeller is mounted on the locating sleeve in a sleeving manner, and mounted between a radial flange at one end of the locating sleeve and the guard plate; a feed channel is formed between the guard plate and the locating sleeve; the one-stage impeller and the two-stage impeller are mounted back to back; the bending direction of a helical blade of the one-stage impeller is counterclockwise; the bending direction of a helical blade of the two-stage impeller is clockwise; a horizontal feed port is formed in the right end face of the one-stage pump body; and a discharge port is formed vertically in a tangential direction of the pump body on the front side of the two-stage pump body. The underflow pump is higher in lift, and is suitable for conveying viscous slurry; the structure of the spraying machine is simplified; the manufacturing cost and engineering use cost of the spraying machine are lowered; breakdown maintenance points of the spraying machine are decreased; and the power loss of equipment is reduced.

The invention relates to the technical field of power transmission and discloses a fan system and an electric instrument. The fan system comprises a fan cover (10) and a movable impeller (20). The fan cover (10) is provided with an air inlet (11) and a ring-shaped groove (12) formed around the air inlet (11). The movable impeller (20) comprises a front cover plate (21). The front cover plate (21) is provided with a center through hole and bent upwards toward the center through hole from outside to inside. The top of the front cover plate (21) extends into the ring-shaped groove (12), and a gap is kept between the top of the front cover plate (21) and the side wall of the ring-shaped groove (12). The fan system is utilized and can prevent backflow from being generated in the fan cover structure, and thus pressure relief is prevented to improve efficiency of the system.

The invention discloses a closed circulation system for sealing and collecting oil fog of a generator. The closed circulation system comprises a rotatable part of a generator thrust bearing or a guide bearing and an oil groove for surrounding the rotatable part, wherein the upper part of the oil groove is provided with a sealing cover, and a sealing structure arranged between the sealing cover and the rotatable part is used for isolating the oil groove and the outside; the sealing cover is respectively provided with an air inlet, an exhaust hole and an oil return hole communicated with the oil groove, the rotatable part of the generator is provided with a fan, and the sealing cover or an oil groove cover is provided with an oil fog collector; the oil fog collector is communicated with the exhaust hole through an oil-taking fog pipe, the outlet of the oil fog collector is communicated with the air inlet, and an oil liquid agglutinated by the oil fog collector is inputted into the oil return hole through an oil return pipe. The closed circulation system provided by the invention has the advantages that the oil fog is limited in a space formed by the oil groove, the oil fog collector and the oil-taking fog pipe, the oil fog is agglutinated by the oil fog collector into a liquid state to reflow in the oil groove, so that the sealing and collection of the oil fog are realized, and an overflowing problem of the oil fog is solved.

The invention discloses an expansion and water supplement pressure stabilizing system of a combined heat and power generation centralized heating heat network and a regulation and control method of the expansion and water supplement pressure stabilizing system. The problems that a variable frequency pump is large in operating energy consumption and high in damage rate, manual pressure relief workloads are large, and too much circulating water is lost are solved. An expansion constant pressure pipe (10) is connected to a water supplement constant pressure pipe (7) and communicates with a water bag (12) together through an isolation valve (13); the water bag (12) is arranged in an airtight expansion tank (11); the airtight expansion tank is filled with compressed air (14); the compressed air (14) is arranged between an inner cavity of the airtight expansion tank (11) and the outer side wall of the water bag (12) in a filling manner; a compressed air inlet (15) and an electric control pressure exhaust valve (19) are arranged on a tank body of the airtight expansion tank; a compressed air conveying pipe (16) is connected to the compressed air inlet (15); and an air compressor (16) is connected to the other end of the compressed air conveying pipe. Pressure at a constant pressure point is regulated automatically in real time.

The invention relates to a blast furnace gas adsorption desulfurization method and device. The device comprises a gravity dust collector, a dry bag-type dust collector, a TRT excess pressure power generation device, a pressure regulating valve bank and an adsorption fine desulfurization tower, wherein a gas uniform distributor, a heat exchanger, a conveying fan, valve banks and connecting pipelines are arranged in the adsorption fine desulfurization tower. The problems that when blast furnace gas is purified through a catalytic hydrolysis or catalytic hydrogenolysis organic sulfur process route at present, a catalyst is prone to losing efficacy, the input cost is high, and the sulfide removal effect is unstable are solved.

The invention relates to the technical field of construction equipment, and in particular to mechanical equipment for preparing regenerated sand and stone materials by utilizing construction waste particles. The mechanical equipment comprises a storage structure, a storage chamber, a dust removal structure, a limiting structure, a discharging structure, a filtering structure and a driving structure; the driving structure is connected to the discharging structure on the storage structure, so that it is convenient for weight sensing through the discharging structure; when a cart is placed on thedischarging structure, the driving structure is used for driving the discharging structure to drive the cart to rotate for discharging, so that discharging is more convenient and faster, materials inthe cart can be completely discharged conveniently, and the discharging quality is greatly improved; the filtering structure is arranged, so that sewage can be conveniently filtered and recycled, itis convenient for pressure relieving on concrete blocks, broken stone blocks, and tile fragments; the dust removal structure used for removing dust of the concrete blocks, the broken stone blocks andthe tile fragments is connected to the driving structure, and the dust removal structure can be conveniently driven by the driving structure to conduct watering and dust removal on the concrete blocks, the broken stone blocks and the tile fragments in a multi-angle mode.

The invention relates to a river and lake sample collector which comprises a carrying platform, a power driving device, a sampling device, a control device and a power supply device, the power driving device is arranged on the side face of the carrying platform, and the sampling device, the control device and the power supply device are fixedly arranged on the carrying platform. The lower end of the sampling device penetrates through the bottom of the carrying platform and can extend downwards, an anti-backflow device is arranged at the lower end of the sampling device, and the lower end of the sampling device can be blocked into a closed sample cavity by the anti-backflow device; and the power supply device is in power supply connection with the power driving device, the sampling device and the control device, and the control device is in communication connection with the power driving device and the sampling device and used for controlling the power driving device and the sampling device to operate. The collector can automatically complete sampling, can collect bottom mud samples and water quality samples at different depths, and can keep the state of the collected bottom mud not disturbed by water flow.

The invention discloses an external-flat-type high-pressure rotary jet grouting device for complex formations in underground coal mines and a method. The external-flat-type high-pressure rotary jet grouting device includes a water-passing outer pipe, a middle joint, a lower outer pipe, a drill bit joint and an external-flat-type drill bit which are coaxially connected in order; a special-shaped piston capable of moving axially is arranged in the water-passing outer pipe, and an expansion cavity with a nozzle is formed between the end of the special-shaped piston and the end of the middle joint; a limiting spring is arranged between the end of the special-shaped piston and the middle joint; an axial channel, a first flow channel and a second flow channel between the water-passing outer pipeand the special-shaped piston are in sealed communication; a quick-setting box is arranged in the lower outer pipe, an elbow pipe communicates between the second flow channel and the quick-setting box, and a hole is forming in the side wall of the elbow pipe to communicate with a first cavity; and a first unidirectional jet nozzle and a second unidirectional jet nozzle arranged in the first cavity and a second cavity separately are further included. By adopting the device and the process method, the function of rotary jet grouting to improve the complex and broken formations in the underground coal mines can be fully exerted, the wall can be effectively protected against collapse, the formations can be strengthened, and the occurrence of accidents in the holes can be reduced or avoided.

The invention discloses a shower lifting pipe with a hydraulic self-locking function. The pipe structurally comprises a water feeding through pipe, a water inlet, a control device, a top shower adjusting device, a locking fixing ring, a shower outlet, a wall base decoration cup, a rubber sleeve, a wall base, a fixing rod, a top shower pipe, a locking nut, a sealing ring, a silicon rubber case, a connection sleeve, a fixing outer cover, a through pipe, a check valve, a connector, a small sealing ring, a clamping spring and a straight pipe. The water feeding through pipe is connected with the water inlet downwards, the control device is arranged in the water feeding through pipe, the exterior of the water feeding through pipe is fixedly connected with the top shower adjusting device through the locking fixing ring, and the water feeding through pipe is connected with he shower outlet. Pressure relief can be completely eradiated, it is ensured that the effect will not be lost, the safety of the lifting pipe is greatly improved, the service life of the lifting pipe is greatly prolonged, locking force is stable and long in lasting time, a top shower pipe is prevented from being deformed under external force, the product is concise in appearance, the economic benefit and sustainable utilization rate of the product are improved, and the product is safer and more efficient.

The invention discloses a seed cotton uniform distributing and sorting system suitable for photoelectric sorting. The system comprises a rack; a three-pipe cotton distributor is arranged on the rack; an air-lock valve is arranged below the three-pipe cotton distributor; a three-roller cotton distributing box is arranged below the air-lock valve; seed cotton thrown out by the three-roller cotton distributing box enters a cotton slipping ramp; a vertical cotton slipping channel is arranged below the cotton slipping ramp; and a photoelectric recognition and sorting box is arranged in the vertical cotton slipping channel. Foreign fibers and other impurities are hit and removed through a high-frequency electromagnetic valve, the seed cotton falls into a brush roller below the equipment, and the sorted seed cotton is discharged and enters a subsequent cotton ginning workshop. According to the invention, cotton balls conveyed along with a pipeline can be fully scattered, fine impurities such as dust, broken leaves and scrap iron wrapped in the cotton balls are primarily cleaned, and the seed cotton and the uncleaned foreign fiber impurities in the vertical cotton channel are conveyed at a constant speed through high-speed rotating airflow of the brush roller; and high-speed recognition and high-frequency sorting are carried out in the recognition and sorting box, so that other foreign fibers are removed, and the sorting precision is improved.

The invention relates to the field of powder forming machines, in particular to an automatic precision servo powder forming machine. The machine comprises a powder forming machine body, a powder clearing structure, a material pushing structure, a storage structure, an anti-blocking structure and a pressure releasing structure, wherein powder materials on a forming die and a finished product are cleared through the powder clearing structure, so that dust clearing of the powder materials is more convenient, and the production processing environment is greatly improved; the top end of the powderforming machine body is provided with the storage structure which is rotationally connected, so that the powder materials are convenient to store, the materials are more convenient to discharge out ofthe storage structure, meanwhile, the powder materials are more convenient to add, and material adding does not influence normal production; meanwhile, dust raising is avoided, and the storage effectof the materials is better; and one end of the anti-blocking structure is connected with the material pushing structure, and the other end of the anti-blocking structure is connected with the storagestructure, so that when the material pushing structure works, shaking of the materials in the storage structure is convenient to drive, hardening of the materials is avoided, and the materials can bebetter discharged.

The invention discloses a check valve assembly and a pumping filling pipeline system provided with the check valve assembly, which can prevent the impact of the filling slurry on the S-valve type piston filling industrial pump. The check valve assembly includes a valve body and a first electromagnetic reversing valve group. The valve body includes a shell, a valve core and a valve body cylinder. The feed port on the shell is adapted to the outlet of the S-valve piston filling industrial pump in the pumping and filling pipeline system, and the valve body cylinder drives the valve core to move in the shell. When reaching the limit position, the shell is closed, and the valve body cylinder drives the spool to leave the limit position, and the shell is connected; the first electromagnetic reversing valve group is used to control the valve body cylinder; the S pipe in the S valve type piston filling industrial pump is oscillated The oil cylinder drives the swing, and the swing oil cylinder is controlled by the second electromagnetic reversing valve group, and the first electromagnetic reversing valve group and the second electromagnetic reversing valve group are arranged in parallel and act synchronously.

The invention discloses an electric vehicle using wind resistance brake to generate electricity. The electric vehicle recycles the inertial kinetic energy of the vehicle during braking and deceleration, and air is sucked in and compressed through an impeller air inlet by motor cover blades on an impeller-type motor cover when the vehicle is braking. At the same time, the air is introduced into a barrel inner-enclosed impeller disc throughinner air outlet holes and an impeller air outlet which are formed in the impeller motor cover and an air duct on the impeller motor cover to drive a variableresistance wind generator to generate electricity, and then a vehicle power supply is charged. The electric vehicle using wind resistance brake to generate electricity can simultaneously serve the dual effects of braking deceleration, energy recycling, endurance increase, and forced cooling for a driving motor.

The invention provides a portable high pressure microorganism transferring and culturing device. The portable high pressure microorganism transferring and culturing device comprises a pressurization interface unit, a high pressure airtight unit and a high pressure culture unit, wherein the pressurization interface unit is connected with a high pressure source and controlled to open or close by virtue of a handle-free type needle valve; the high pressure airtight unit is connected with the pressurization interface unit and the high pressure culture unit and provides a long-term high pressure airtight environment for a culture system; the high pressure culture unit provides a non-pollution high pressure culture space for microorganisms. The portable high pressure microorganism transferring and culturing device provided by the invention has the advantages that all the components are vertically arranged, no protruding structure is formed, and the handle-free high pressure needle valve is adopted, so that pressure relief caused by looseness of the valve and the interface owing to jolt during long-distance transportation is avoided; all the components can be disassembled, cleaned and disinfected, so that the non-pollution culture environment is guaranteed; a main structure is simple, weight is light, and carrying and long-distance transportation are convenient; manufacturing cost is low, and the portable high pressure microorganism transferring and culturing device can be conveniently connected with multiple pressurization equipment and can be widely applied to culture of multiple barophilic microorganisms including halophilic microorganisms, thermophilic microorganisms and psychrophilic microorganisms.

The invention provides laboratory sewer blockage removing and protection equipment, and belongs to the technical field of machines. The blockage removing and protection equipment comprises a solvent tank, a heating tank and a mixing tank. The solvent tank is connected with a charging pipe and further connected with an outer connection water pipe. A valve device is arranged between the mixing tankand the heating tank, a valve device is arranged between the solvent tank and the heating tank, the mixing tank is provided with a nozzle, and a heating wire is arranged in the heating tank. The solvent tank, the heating tank, a pressurizing pump and the mixing tank are all arranged on one rack. The laboratory sewer blockage removing and protection equipment has the advantage that a sewer can be efficiently cleaned.