151results about How to "Guaranteed inflow" patented technology

The invention provides an underground high-pressure hydraulic fracturing hole sealing material for a coal mine and a hole sealing technology. The hole sealing material comprises the following components by weight: 100 parts of cement, 2 to 4 parts of Ms type early-strength slushing agent, 0.08 to 0.5 parts of polypropylene fiber, and 60 parts of water. The hole sealing technology comprises the following steps in sequence: drilling a hole on a coal-rock mass; constructing until reaching the a top plate at a coal seam; expanding the hole to a bottom plate at the coal seam; feeding a grouting pipe to the bottom plate at the coal seam; arranging a grout returning pipe to the front end of a blocking section of a hole port; blocking the hole port section through AB adhesive and cotton yarn; feeding the hole sealing material into the hole through the grouting pipe; closing a check valve of the grout returning pipe after returning the grout through the grout returning pipe; continuously grouting; completely draining the grout in the grouting pipe once water flows form a fracturing hole; grouting at the second time after the grout is condensed; and finally solidifying. The underground high-pressure hydraulic fracturing hole sealing material for the coal mine has the advantages of being less in contraction, and high in compressive strength and impact toughness; the hole sealing material is high in sealing performance and resistance to high pressure under the effect of high-pressure hydraulic fracturing impact load; simultaneously, the hole sealing material is low in cost and the construction is convenient; and the hole sealing technology is simple, the hole sealing depth meets the requirement, and the success rate is high.

The invention relates to a vertical tube type falling-film evaporator. The vertical tube type falling-film evaporator comprises an upper tube box, a lower tube box, a casing, multiple heat exchange tubes, an upper tube plate and a lower tube plate, wherein a solution inlet and a secondary steam outlet I are arranged at the upper tube box, a concentrated liquid outlet and a secondary steam outlet II are arranged at the lower tube box, a steam inlet is arranged at the upper part of the casing, and a condensed water outlet is arranged at the lower part of the casing; a film distributing device used for distributing a solution on the inner walls of the heat exchange tubes is arranged in the upper tube box; the film distributing device comprises a liquid bearing plate, a liquid feeding plate, a liquid distributing plate and liquid guiding tubes. By means of a steam stripping effect generated by secondary steam and liquid films, the heat transferring push force and the evaporation efficiency are increased. The liquid films can be uniformly distributed by the film distributing device, the film forming is stable, the wall drying phenomenon is avoided, the recovery rate of secondary steam produced in an evaporator is high, the recovery is convenient, and the heat transferring efficiency is improved.

The invention provides an all-wet-joint precast prestressed underground continuous wall and a construction method of the all-wet-joint precast prestressed underground continuous wall. The continuous wall is formed by sequentially connecting a plurality of wall segments (1). The middle of the section of each wall segment (1) is provided with a cavity (4). Concave groove segments (8) are arranged at the center of the wall segments (1) in the length direction. Semi-conical holes (5) are formed in the upper connection parts and the lower connection parts of the wall segments (1). The semi-conical holes (5) are communicated with the cavities (4) and the concave groove segments (8). Water-proof wet joints are formed by pouring concrete in the semi-conical holes (5). According to the continuous wall, all the wall segments are connected through the wet joints, so that the problem of leakage at the connection parts of the wall segments is solved. By exerting prestressing force between the wall segments, the flexural rigidity, the anti-cracking ability and the lasting quality of the underground continuous wall are improved. Due to the fact that the underground continuous wall is connected with reinforcing mesh pieces, the shear-resistant performance between the wall segments is strengthened. As the wall segments are constructed on the ground, the quality of the continuous wall is easy to guarantee.

The invention belongs to the pressurized water reactor overall structure design technology, and specifically discloses an integrated small reactor. The integrated small reactor comprises a pressure vessel, and a reactor core, a compressing assembly, a control rod assembly, a guide assembly, a control rod driving mechanism and a once-through steam generator which are arranged inside the pressure vessel, and further comprises a main pump directly connected with a cylindrical body of the pressure vessel, wherein the reactor core comprises a reactor core barrel and a fuel assembly; the compressing assembly and the control rod assembly are arranged inside the reactor core barrel; and the pressure vessel is directly connected with the main pump, the main pump is horizontally installed, and an inlet thereof is provided with a flow distribution device. Heating equipment is arranged on a top cover of the pressure vessel, a coolant inside the pressure vessel is subjected to pressure control directly through temperature adjustment, that is, main equipment such as the steam generator, voltage-stabilizing equipment and the control rod driving mechanism are arranged inside the pressure vessel of the reactor at the same time. According to the integrated small reactor, the external loop pipeline is omitted, large break accidents are eliminated, and the structure is compact; and the control rod driving mechanism is arranged internally, the rod ejection accident is eliminated, and the fixation safety is greatly improved.

The invention discloses a nonmetal magnetism-free liquid nitrogen dewar which is composed of a vacuum cover and a dewar liner (1). The vacuum cover comprises an outer casing (2) and a cover plate (3), the dewar liner (1) is arranged inside the outer casing (2), at least one liquid inlet tube (4) or liquid outlet tube (5) is arranged on the dewar liner (1), at least one circular hole (6) is arranged on the cover plate (3), the circular hole (6) is matched with the liquid inlet tube (4) or the liquid outlet tube (5), a heat insulation layer (7) is arranged at the periphery of the dewar liner (1), a through hole (8) is arranged in the middle of the cover plate (3), the diameter of the through hole (8) is matched with the inner diameter of the dewar liner (1), and a vacuum pumping port (9) is further arranged on the cover plate (3). By means of the structure, the nonmetal magnetism-free liquid nitrogen dewar can be used for installing a high temperature superconducting radio frequency coil, simultaneously has the effects of containing liquid nitrogen and cooling the high temperature superconducting radio frequency coil.

The invention discloses a gravel filling and simulation system and method in a hydrate mining well pipe. The simulation system includes a test well subsystem, a simulation and filling subsystem and afilling quality detecting subsystem. A wellhole pipe column is installed according to an actual well structure, and filling operation simulation and filling quality detecting are conducted; not only can be full-scale simulation conducted on characteristics of an actual gas hydrate mining well reservoir and in-pipe gravel filling operation under limitation of the well structure, but also whole-process monitoring and evaluating can be conducted on the construction quality of the filling operation and adaptation of the filling operation under a long-term hydrate formation condition, so that the aim of optimizing construction parameters and process design parameters is achieved. By combining the introduction of a radial-flow flow divider, a point piezometer and an acoustic imaging logging system, the measurement effect is true and credible, the simulation result is closer to the difference construction, the reference is high, and the gravel filling and simulation system and method is suitable for gravel filling processes in different well structures and effect monitoring simulation of gravel filling. The gravel filling and simulation system and method not only provides new ideas for adaptability evaluation of the gravel filling operation of a marine shallow gas hydrate mining well, but also provides gist for a best construction scheme and best technological parameters of the gravelfilling operation.

The invention provides a steam exhausting system and a steam cooking device. The steam cooking device comprises an outer shell and a cooking chamber arranged in the outer shell, wherein steam exhaust ports are formedina chamber wall of the cooking chamber. The steam exhausting system comprises a steam exhausting box, wherein the steam exhausting box is fixedly mounted on an outer wall of the cooking chamber and is in sealing connection with the chamber wall of the cooking chamber; a through hole is formedinthe outer shell; the steam exhausting box locally penetrates through the through hole and extends out of the outer shell; a steam channel is arranged in the steam exhausting box; a steam inlet of the steam channel is communicated with the steam exhaust ports; and a steam outlet of the steam channel is located on the part of the steam exhausting box extending out of the outer shell. The steam exhausting system provided by the invention has the advantages that the structure is simple, the cost is low, the mounting is convenient, the production efficiency of the steam cooking device product is promoted and the production cost of the product is lowered. Besides, according to the invention, the steam outlet is formed on the part of the steam exhausting box extending out of the outer shell, so that the user can easily scrub the steam outlet part and the problem of difficulty in cleaning and even incapability of cleaning the steam outlet of the present steam cooking device product can be solved.

The invention discloses a solar heat accumulation type passive solar house. A solar water heater communicates with a roof warming assembly. A passive ventilation heat exchange wall is arranged on the inner side of a glass seal plate. An upper ventilation assembly is arranged on the upper portion of the passive ventilation heat exchange wall. A lower ventilation assembly is arranged on the upper portion of the passive ventilation heat exchange wall. By means of the upper ventilation assembly, gas flow is made to flow to the indoor portion from a cavity; and by means of the lower ventilation assembly, the gas flow is made to flow to the cavity from the indoor portion. By arranging the passive ventilation heat exchange wall, by means of an outer honeycomb structure heat conduction layer, an inner honeycomb structure heat conduction layer and a honeycomb porous structure, the absorption rate and storage amount of solar energy are increased, and heat in a phase change heat storage box can be slowly released to the indoor portion; the loss of energy consumed by the underground portion is reduced through a water isolation layer according to the property that the specific heat capacity of water is large; and by means of the upper ventilation assembly and the lower ventilation assembly, the flow direction of the gas flow can be ensured, circulation of the indoor gas flow is achieved, and the effect that hot gas inflows from the upper portion and cold gas outflows from the lower portion is ensured.

The invention provides a coal slime drying system and a drying technique thereof. The coal slime drying system comprises a coal slime breaker, a drying beater and a pulverized coal collection device. The inlet end of the coal slime breaker is used for receiving wet coal slime. The outlet end of the coal slime breaker is used for being connected with the inlet end of the drying beater. The drying beater is provided with an air inlet. The outlet end of the drying beater is connected with the pulverized coal collection device.

A carburetor arrangement for an internal combustion engine in a manually guided implement, such as a power chainsaw, a cut-off machine, etc. is provided. A regulating chamber delimited by a regulating diaphragm is provided. Upon deflection of the diaphragm due to underpressure in the regulating chamber, the latter is connected with a fuel tank. Via at least one nozzle, the regulating chamber opens into an air channel that supplies fuel / air mixture to the engine. The carburetor arrangement includes a scavenging pump that is disposed in a return line from the regulating chamber to the fuel tank, and in which is formed a pump chamber. The scavenging pump serves to completely fill the regulating chamber with fuel before start-up of the engine. To prevent the fuel / air mixture from becoming too lean after start-up, especially upon opening of the choke valve, a supply line is provided from the pump chamber into the air channel and supplies additional fuel to the air channel during the run-up phase.

The invention relates to the technical field of air conditioners, in particular to an air conditioner. The air conditioner aims to solve the problem that an existing air conditioner is caused by insufficient liquid supply of a compressor. For the purpose, the air conditioner comprises a cooling pipeline system arranged between a cooling inlet and a condenser of the compressor, and partial refrigerant in the condenser flows to the cooling inlet of the compressor through the cooling pipeline system and then flows into the compressor; and the cooling pipeline system comprises a cooling pipeline and a pump device arranged on the cooling pipeline, the pump device is connected with a controller, and the controller is configured to control starting and stopping of the pump device according to thepressure ratio of the compressor. The pump device is started to ensure that the refrigerant in the condenser can flow into the compressor when the pressure ratio is lower than a set threshold value,so that the pressure ratio of the compressor is improved, the effect that the air conditioner can still normally run when the external temperature of the condenser is low is achieved, and thus it is ensured that the air conditioner can still meet the refrigeration requirements under the condition.

The invention discloses a construction method for a tropical rainforest hanging garden. The construction method comprises the following steps that 1, a stereoscopic simulation tree-shaped framework is built with metal pipes, a layer of bark pieces are attached to the outer surface of the framework and tied with iron wires for fixation, and a simulation landscape tree is obtained; 2, epiphytes are wound and fixed to the outer surface of the simulation landscape tree through transparent fishing lines; 3, a vessel containing liquid is arranged in the simulation landscape tree, the simulation tree-shaped framework and the vessel are connected through multiple liquid guide pipes, and then the tropical rainforest hanging garden is obtained. According to the construction method, the epiphytes can be exhibited and scientifically popularized in a warm and wet artificial environment, the simulation landscape tree can be used for a long time by serving as an exhibition carrier, an automatic water supply system can achieve automatic irrigation and feed, and a large quantity of manpower and material resources are saved.

The invention provides a laddered combined ecological floating island used for micro-polluted water disposal. The solar laddered combined ecological floating island is provided with multiple ladderedwater purification ponds which are distributed from bottom to top and also includes a water feeding device, a drainage device, siphons and plant cultivation pads. The feeding device consists of a water pump and a water feeding pipe, a water inlet of the water feeding pipe is connected with a floating water area of a floating island body, and a water outlet is positioned in the water purification pond at the top; the drainage device is installed in the water purification pond at the lowest position, and a drainage port of the drainage device is connected with the floating water area of the floating island body and used for automatically controlling the water level of the water purification pond at the lowest position; the siphons are installed in each water purification pond above the waterpurification pond at the lowest position; when the water level of an arbitrary water pond above the water purification pond at the lowest position is higher than preset water level, water in the water purification pond is drained into the corresponding water purification pond below the water purification pond through the corresponding siphon; the plant cultivation pads are arranged at the bottomsof all the water purification ponds and used for cultivating and purifying plants. The laddered combined ecological floating island is simple in structure, convenient to apply and capable of being used for removing pollutants in polluted water.

The invention provides a deep sea oil well one or two-way well washing conversion tool which includes an upper connection joint. The lower end of the upper connection joint is connected to a hanging cover, and an elastic locking claw is placed at the outside of the hanging cover, and a sliding sleeve is connected below the elastic locking claw. A lower connection joint is connected to the lower end of the hanging cover. The hanging cover and the lower connection joint are provided with well washing conversion sleeves, and the sliding sleeve can drive the well washing conversion sleeves to synchronously move up and down through the hanging cover. A median septum with circulation holes thereon can ensure that the liquid in the operation tube can not form throttle pressure difference. The disclosure can change the flow direction of the liquid in the conversion tool, and ensure the mud cakes and gravel in the operation tube flow into the wellbore again after the well washing finishes. In addition, the conversion tool can realize the connections of oil sleeves, and can realize positive and negative well washing operation, and can further realize well control operation under high pressure in the pit.

The invention belongs to the field of microorganism detection and particularly relates to a self-driven microfluidic detection chip and a preparation method and application thereof. The self-driven microfluidic detection chip comprises an upper chip layer and a lower chip layer which are sequentially arranged; the upper chip layer is provided with a sample introduction pool and an exhaust hole, the upper chip layer is provided with a fluid channel which is communicated with a detection pool and a waste liquid pool, and the surface of the fluid channel is modified by a hydrophilic material to achieve liquid flow self-driving. The invention also discloses the application of the self-driven microfluidic detection chip in shrimp pathogen detection. The chip is high in automation degree, operators can rapidly, sensitively and microscopically detect multi-purpose nucleic acids only by single-time sample addition, the consumption of detection reagents is greatly reduced, and the production cost is saved.

The invention provides a pig iron perforating device based on circulation of a cooling liquid. The pig iron perforating device comprises a main body; an electric push rod and a fixing part are arranged in the main body; a perforating mechanism is arranged at the lower end of the electric push rod; a groove is formed in the fixing part; a reset mechanism is installed in the groove; a movable rod isfixedly installed at the lower end of the reset mechanism; and a cooling liquid air bag is installed in the fixing part. According to the pig iron perforating device based on circulation of a coolingliquid circulation, a separating device is driven to work by a rotating shaft; a liquid mixture of the cooling liquid and scrap iron is stirred uniformly; when the separating device rotates, an electromagnet at the shaft end of a fixed rod is driven to rotate by a centrifugal force generated during rotation; the scrap iron in the cooling liquid is adsorbed through the electromagnet; the cooling liquid is filtered again; and the filtered cooling liquid enters the cooling liquid air bag through a circulating pipeline, so that the cooling liquid is recycled.

The invention provides a tunnel drainage system. According to the tunnel drainage system, the problems that the water leakage defect of a tunnel is a difficult problem disturbing tunnel operation andmaintenance, a tunnel lining is eroded and destroyed due to long-time water leakage of the tunnel, tunnel surrounding rock is also softened due to water leakage, the strength of the surrounding rock is reduced, and consequently the surrounding rock is destabilized and damaged are solved. The tunnel drainage system comprises a drill hole, a side ditch, a gas water pressing device and the like. High-pressure gas is filled into a water tank for reverse water pressing so as to start siphoning, the problems of siphon air accumulation and silt plugging are solved, the tunnel drainage system does notneed help of other electrical equipment and is simple and reliable, materials are simple and easy to obtain, and the tunnel drainage system is not disturbed by other external conditions and is wide in application range and suitable for wild mountain tunnels in remote areas.

The invention discloses a coaxial electrolyte flushing device and method for array group electrode micro-hole electromachining. The coaxial electrolyte flushing device comprises a sealing cavity, array group electrodes, an electrolyte sealing cavity, an electrolyte groove, an insulating gasket and electromagnetic chucks. When the electrolyte sealing cavity is driven by a machine tool main shaft to move to be attached to the insulating gasket, an insulating cavity composed of the electrolyte sealing cavity, the insulating gasket and a workpiece to be machined is formed through the attraction function of the electromagnetic chucks; and the diameter of a single cathode of the array group electrodes is smaller than the diameter of a single hole in the workpiece to be machined, and an electrolyte sealing flow diversion cavity is formed through the cathodes and the corresponding holes. The coaxial electrolyte flushing method is simple and compact in structure, coaxial machining is conducted on micro holes through the array group electrodes, it is guaranteed electrolytes flow into the machining region along the side walls of the cathodes of the array group electrodes, the flowing speed of the electrolytes at different positions is consistent by keeping the pressure of the electrolyte sealing cavity consistent, machining stability and group control machining consistency can be improved, operation is convenient, and implementation is easy.

The invention discloses an adjustable beam angle embedded LED lamp. The adjustable beam angle embedded LED lamp comprises an outer ring, the top of the outer ring is connected with a radiator througha screw, and the top of the radiator is connected with a wire pressing sheet through a screw. The top of the radiator is connected with a light source fixing support through a screw. An LED is embedded in the position, corresponding to the light source fixing support, of the top of the radiator. The top of the light source fixing support is fixedly connected with a varifocus lens, the surface of the varifocus lens is sleeved with a front ring, and an inner ring is fixedly arranged on the top of the front ring. The change of the beam angle of the embedded lamp is achieved by integrally adjusting a displacement structure of the radiator, and the efficiency of the lamp can be improved by 20% or above in the large-angle state compared with an existing LED lamp. Through cooperation of the radiator, the light source fixing support, the LED and the varifocus lens, the problem that the light emitting efficiency losses of existing adjustable beam angle lamps are commonly too large, and consequently the light utilization efficiency is reduced is solved.

The invention discloses a city comprehensive pipe gallery structure. The city comprehensive pipe gallery structure comprises a rainwater pipe, a rainwater inspection well, a comprehensive bin and a rainwater bin; a connecting opening is formed in one side of the rainwater inspection well, and the rainwater pipe is communicated with the rainwater inspection well through the connecting opening; the comprehensive bin is arranged on the other side of the rainwater inspection well; the city comprehensive pipe gallery structure further comprises a sewage bin, the comprehensive bin is arranged on one side of the sewage bin, and a sewage inlet pipe is arranged on the other side of the sewage bin; the sewage bin and the comprehensive bin are arranged on the upper side of the rainwater bin, and the bottoms of the sewage bin and the comprehensive bin are the top of the rainwater bin; the side, close to the rainwater inspection well, of the rainwater bin is provided with a preserved through hole, and the rainwater inspection well is communicated with the rainwater bin through the preserved through hole; and the bottoms of the comprehensive bin and the sewage bin are each provided with a one-way hole allowing liquid to flow into the rainwater bin, and the comprehensive bin and the sewage bin are communicated with the rainwater bin through the one-way holes. By means of the city comprehensive pipe gallery structure, the phenomenon of pipe arrangement conflicts, the phenomenon that normal running of pipes is influenced by water accumulated in the bins and the like can be effectively avoided.

The invention discloses a landscaping maintenance device which comprises a box body, a fertilizer box, a first storage box, a first bevel gear, a second bevel gear, a first driven rod and a motor used for driving the first bevel gear to rotate. A fertilizer is arranged in the fertilizer box; the first storage box is fixedly communicated with the fertilizer box; the second bevel gear is meshed with the first bevel gear; the second bevel gear is rotationally connected onto the first driven rod through a bearing; the first driven rod is provided with stirring blades; the stirring blades are arranged in the first storage box; an air cylinder is arranged in a box body; and the air cylinder is fixedly communicated with the first storage box and provided with a water spraying pipe communicated with the air cylinder. A motor is started, the first bevel gear rotates, the second bevel gear also rotates along with the first bevel gear to enable the first driven rod to rotate, and the stirring blades stir the fertilizer flowing into the first storage box in the first storage box. The fertilizer and water flow into the air cylinder and then are sprayed out through the water spraying pipe. The landscaping maintenance device provided by the invention can automatically spray the fertilizer and the water and dilute the fertilizer and the water at the same time.

The invention discloses a tree seedling fixing and correcting device with an irregular watering function and used for tree planting. Aiming at the problem that tree seedlings have dependence on watering due to regular and quantitative watering every day, thus being extremely not conducive to the growth of the tree seedlings, the invention proposes the following scheme that the tree seedling fixingand correcting device comprises a fixing frame; a fixing plate is connected onto each of the outer walls of two sides of the fixing frame in a snap manner; the top end of each of the two fixing plates is fixedly connected with a transverse plate; the outer wall of one side of each transverse plate is fixedly connected with a spraying box; the outer wall of one side of each spraying box is fixedlyconnected with spraying pipes distributed equidistantly; and the outer wall of the top part of each transverse plate is fixedly connected with a water storage tank. According to the tree seedling fixing and correcting device, under pushing of a piston plate, the air pressure of one end of a connecting pipe is reduced; the atmospheric pressure presses water stored in the water storage tank into the spraying boxes; such irregular watering simulates raining of nature, so that trees seeking out water sources in uncertainty and trying hard to take root are likely to cultivate, and such trees can adapt to severe environments, and thus, the trees grow better.

The invention discloses a cowl upper panel structure. A turnup mounting surface is arranged at the top end of the side wall of a cowl U-shaped water channel. An inner board of the cowl upper panel is vertically fixed on the mounting surface through a turnup edge at the bottom end of the inner board. An upper panel mounting board is horizontally fixed on the mounting surface and the turnup edge of the inner board of the cowl upper panel. One side of the upper panel mounting board, close to the inner board of the cowl upper panel, is provided with an up-bent reservoir turnup edge, and the part of the reservoir turnup edge, corresponding to the inner board of the cowl upper panel is provided with a water outlet allowing water to flow to the cowl U-shaped water channel. The design of the reservoir turnup edge guarantees certain storage of rainwater after the rainwater flows to the mounting board of the cowl upper panel and prevents the rainwater from leaking into an engine chamber; the rainwater stored in the mounting board of the cowl upper panel is allowed to smoothly flow into the cowl U-shaped water channel from the water outlet. The inner board of the cowl upper panel ensures strength of peripheral parts, such as mounting strength of front windscreen.

The utility model relates to a coil structure with strong oil guiding and cooling, belonging to the technical field of transformers. Its structure includes a ring coil, a holding structure frame, an inner oil baffle, an outer oil baffle, a first insulating block, an insulation structure at the end of the ring coil and an oil blocking structure at the lead wire, and a holding structure frame is arranged inside the ring coil. There are inner and outer oil baffles on the inner and outer sides of the ring coil, cardboard is arranged between the holding structure frame and the inner oil baffle, an oil resistance structure is provided at the lead-out line at the lower end of the ring coil, and the upper and lower ends of the ring coil are respectively provided with There is a first insulating block, and a coil end insulating structure is arranged at the lower part of the first insulating block at the lower end of the annular coil. The oil volume of the three oil inlets at the end of the toroidal coil of the transformer can be respectively 27.7%, 33.3% and 39%; the oil volume is not much different, and the coil can be effectively cooled. While achieving better cooling effect, the performance of safe and reliable operation of the product is also improved.

The invention particularly relates to a cascade type shaftless electric fan which comprises a stator component, a rotor component and a driving device. The stator component comprises a mesh enclosure 2 and a shell 4, the shell 4 comprises an outer shell 41, a static cascade 42 and an inner shell 43 which are radially and sequentially arranged, the outer shell 41 and the inner shell 43 are fixedly connected by blades of the static cascade 42, the mesh enclosure 2 is arranged on an inlet side of the outer shell 41, the rotor component comprises a rotating wheel 3 and a gear 8, the rotating wheel 3 comprises an outer ring 31, a moving cascade 32 and an inner ring 33 which are radially and sequentially arranged, the outer ring 31 and the inner ring 33 are fixedly connected by blades of the moving cascade 32, the driving device drives the gear 8 to rotate, the gear 8 is engaged with the outer ring 31, the inner ring 33 is connected with the inner shell 43 through a bearing, and the runner center of the moving cascade 32 is overlapped with that of the static cascade 42. Air enters the moving cascade 32 from an inlet and then enters atmosphere through the static cascade 42, redundant flow passage components in the middle are omitted, runner design is reasonable, and energy conversion efficiency is improved.

The invention discloses a slurry suction machine with a self-cleaning function. The slurry suction machine with the self-cleaning function comprises a slurry suction pipe, a slurry suction machine body, a waste recycling barrel and a plurality of slurry suction barrels, wherein the slurry suction barrel is arranged above the slurry suction pipe; the slurry suction pipe comprises an inner pipe body and an outer pipe body which can be positioned after being rotated oppositely; the inner pipe body is provided with through holes with the number the same with that of the slurry suction barrels; outer pipe body through grooves are formed in the outer pipe body in the axial direction of the outer pipe body; the lower portion of each slurry suction barrel is provided with a slurry suction branch pipe capable of penetrating through the corresponding outer pipe body through groove to be connected to the corresponding through hole; inner pipe body through grooves staggered with the through holes in position and opposite to the outer pipe body through grooves in position are formed in the inner pipe body in the axial direction of the inner pipe body; sliding blocks capable of sliding in the axial direction of the inner pipe body through grooves are arranged in the outer pipe body through grooves; the lower portion of each sliding block is provided with an air bag capable of being inflated with a pump of the slurry suction machine body; and the outer wall of each air bag is provided with a scraper used for removing redundant slurry on the inner wall of the inner pipe body. By means of the scheme, the redundant slurry adhering to the inner wall of the slurry suction pipe can be effectively removed so that the slurry suction pipe can be kept clean and unobstructed, and thus a better slurry suction effect is achieved.

The invention discloses a reverse pressure oil lubrication power reciprocating pump, comprising a power end, wherein, the power end is provide with a case (1) provided with a plurality of chutes (15), a bent axle (2), cross heads (7), cross pins (6), cross pin collars (5), connecting bars (4) and bushes(3) with the amount being equal to the chutes (15); the reciprocating pump is characterized in that: the housing (1) is provided with a through hole (13), two sides of the external diameters of the cross heads (7) are both provided with axial grooves(14), the through hole (13) is perpendicular to the axial grooves(14), the through hole (13) is communicated with the axial grooves(14) in the sliding process of the cross heads (7), the cross pins (6) are provided with at least a radial forth oil hole (12). The reciprocating pump facilitates pressure oil lubrication on oil sites between the cross heads and the chutes of the case, has good lubrication effect and can improve the reliability of operation, besides, the strength of the bent axle is not reduced, and the processing of the bent axle is labor-saving and time-saving.

The invention discloses a cosmetic integrated production device and method and relates to the field of cosmetic production equipment, in particular to a cosmetic integrated production device. The cosmetic integrated production device comprises a bottom plate and is characterized in that one end of the upper side of the bottom plate is fixedly connected with the lower ends of symmetric supporting pillars; the upper ends of the two supporting pillars are fixedly connected with one end of the lower side of a work barrel; a feeding pipe opening is formed in an eccentric position of the upper sideof the work barrel; the middle portion of the lower side of the work barrel fixedly communicates with the upper end of a vertical pipe of an L-shaped discharging pipe; the other eccentric position ofthe upper side of the work barrel fixedly communicates with the lower end of an air pipe; the bottom of one side of the air pipe fixedly communicates with one end of a one-way air inlet valve; and a piston is arranged in the air pipe. By means of the cosmetic integrated production device and method, after paste cosmetics are subpackaged into box bodies according to the quantity, a second belt is used for screwing box covers of the box bodies. By means of the device, multiple processes are achieved, and the phenomenon that the cosmetics in the box bodies are polluted in the process that the subpackaged box bodies are moved to the next process is reduced.

The invention belongs to the technical field of medical instruments and discloses a medical breathing machine which comprises an inspiration tube and an expiration tube. A humidifying tank and a firstwater accumulation cup are sequentially arranged on the inspiration tube in a direction from an inlet to an outlet of the inspiration tube, and a second water accumulation cup is arranged on the expiration tube. A water tank is communicated with the humidifying tank through a water control part, the first water accumulation cup and the second water accumulation cup are provided with water outletscontrolled by respective water outlet electromagnets, and water level sensors are arranged in the first water accumulation cup and the second water accumulation cup respectively. A humidity sensor isarranged in the humidifying tank, each water level sensor is electrically connected with the corresponding water outlet electromagnet through a control box, and the humidity sensor is electrically connected with the water control part through the control box. By the medical breathing machine, the problem of burning of the respiratory tract of a patient or back-blowing of accumulated water to thelung of the patient due to less water in the humidifying tank or excessive water in the water accumulation cups of an existing medical breathing machine can be solved.

The invention relates to a method for measuring flow concentration of turbid water, and a priming device. The method comprises the following steps: (1) in a preparation stage, installing the priming device, and acquiring sediment density pS; (2) in a measurement stage, firstly, adjusting the depth and the angles of priming pipes, turning on the priming device for draining, and connecting into a volume, secondly, weighing the to-be-measured turbid water to obtain the mass M, and measuring the volume V of the to-be-measured turbid water, thirdly, calculating the density p of the turbid water and the density pW of clear water, wherein p is equal to M / V, and pW is equal to MW / VW, fourthly, calculating sediment volume concentration, and finally, calculating the flow concentration CQ which is equal to (QS.t) / (Q.t) or QS / Q or NV. The priming device comprises a priming elbow pipe, a flange arranged on a priming straight pipe in a sleeved manner, three screws evenly fixed on the lower surface of the flange in the circumferential direction, the priming straight pipe arranged below the flange in a sleeved manner, a graduation disc on the three screws, a positioning disc fixed on the priming straight pipe and arranged on the three screws in a sleeved manner, and a valve on the tail end of the priming straight pipe. The method can be widely applied to the measurement on the flow concentration of turbid water.