73results about How to "No external power required" patented technology

The invention discloses a multistage rainwater purification treatment device which comprises a plurality of stages of treatment pools; the plurality of stages of treatment pools comprises a pre-settling pool, a filtering pool and a water discharging pool from forth to back; a water inlet pipe is arranged in the pre-settling pool; a baffle structure is arranged between the pre-settling pool and the filtering pool; an overflowing baffle is arranged between the filtering pool and the water discharging pool; a plurality of rainwater filters are arranged in the filtering pool; the water discharging openings of the rainwater filters are communicated with the water discharging pool; a water outlet pipe is connected in the water discharging pool. According to the multistage rainwater purification treatment device, functions of gravity settling, screening, filtering and overflowing are integrated, sediments in rainwater are removed by the pre-settling pool, the baffle structure blocks floating matters in the rainwater and can perform primary purification on the rainwater, and the further filtering treatment is performed on the rainwater by the rainwater filters in the filtering pool, so that pollutants, such as particulate matters, heavy metal and organic matters, in the rainwater are removed effectively, the purification treatment efficiency and the pollutant removal efficiency are improved, the standard discharging or recycling of the rainwater is realized, the water environment is protected, and the difficult problem of water shortage is solved.

The invention discloses a layered pulse pressure-charging plug removal device and method for an oil filed water injection well. The device is arranged onto a water injection main line, a high-pressure water injection pipeline and the water injection well. The device comprises pressure-charging boxes, a low-pressure water injection pipeline and a high-pressure water injection pipeline, wherein the pressure-charging boxes are respectively provided with a high-pressure chamber and a low-pressure chamber; a piston is arranged between the corresponding high-pressure chamber and the corresponding low-pressure chamber, and the high-pressure chamber and the low-pressure chamber are communicated with the water injection main line respectively through a first water inlet pipeline and a second water inlet pipeline; the high-pressure chambers are communicated with the high-pressure water injection pipeline through a high-pressure pipeline, and are communicated with the water injection well; the first end of the low-pressure water injection pipeline is communicated with the low-pressure chambers; the second end of the low-pressure water injection pipeline is connected with a sleeve valve of the water injection well; the high-pressure water injection pipeline, the first water inlet pipeline, the second water inlet pipeline, the high-pressure pipeline and the low-pressure water injection pipeline are respectively provided with a first retaining valve, a second retaining valve, a third retaining valve, a fourth retaining valve and a fifth retaining valve in sequence; and a pressure gage is arranged between the first retaining valve and an oil pipe valve. Pressure-charging plug removal treatment can be independently performed on a low water intake layer in the water injection well so as to improve a water injection profile.

The invention relates to the technical field of drainage of low-permeability geotechnical engineering, in particular to a permeation increase siphon drainage system for a low-permeability soil slope. The permeation increase siphon drainage system is especially suitable for engineering drainage of low-permeability-coefficient water-rich strata. The permeation increase siphon drainage system is composed of a water-permeable concrete fracturing injection system and a siphon drainage system body. For the loess slope with low permeability and collapsibility, water-permeable concrete is pressed into the loess slope with low permeability, a high-permeability network channel is formed, and the range of influence that a cone of depression is generated by a single siphon drainage hole is widened. By means of a high-permeability water-permeable network, the drainage efficiency is increased; based on the high-lift siphon principle, redundant underground water in the slope is automatically and efficiently drained in real time, the underground water level of the slope can be controlled to be blow the safety water level, and no external power is needed; and the beneficial effects of being low in manufacturing cost and high in efficiency are achieved.

The invention discloses a fuel gas odorizing device, which comprises an odorant storage unit, an ejector unit, a fuel gas pipeline, an odorant delivery pipe, a fuel gas signal pipe, a drug injection pipe, a pressure control valve arranged on the odorant delivery pipe and auxiliary equipment comprising a connecting valve and other control valves. The ejector unit is used for mixing the fuel gas and the odorant. The fuel gas signal pipe controls the pressure control valve according to fuel gas flow to control the dosage of the odorant. The drug injection pipe is used for injecting the fuel gas added with the odorant into the fuel gas pipeline for fuel gas supply. The odorizing device of the invention has a simple structure, low construction cost, high degree of automation, convenient maintenance and management and low operation cost, and combines a complex mechanical device and a control system in the prior art into one.

The invention discloses an optical engine toothed belt tightening device. According to the structure of the optical engine toothed belt tightening device, an installing plate is provided with three types of threaded holes, the upper portion and the lower portion of a moving plate are each provided with a long-strip hole, the middle position of the moving plate is provided with a threaded hole, and a convex table is arranged on the position, perpendicular to the long-strip holes of the moving plate, of the moving plate. Bolts penetrate through the long-strip holes to fix the moving plate to second installing holes. An idler shaft bolt is screwed into a first installing hole and fixes a right side idler shaft, the other idler shaft bolt is screwed the threaded hole in the middle of the moving plate, and other operations of the idler shaft bolt is in accordance with an installing structure of the right side idler shaft. A strip-shaped support is fixed to third installing holes through bolts, one face of the strip-shaped support is provided with two through holes, and the other face of the strip-shaped support is provided with a threaded hole. The adjusting bolt is screwed into the threaded hole to abut against the convex table position of the moving plate, and tightening degree adjustment of a driving belt is achieved. Disassembling of the driving belt is achieved only by loosening the adjusting bolt, and other parts do not need to be disassembled. It is guaranteed that the driving belt is tightened, and meanwhile the frequent disassembling and assembling requirement of the driving belt of an optical engine can be met.

The invention belongs to the field of water treatment, and specifically relates to a rainwater filtering device. The rainwater filtering device is characterized by comprising a filtering frame, filtering nets, a filtering material and a flow guiding device, wherein the filtering frame comprises a top, a side part and a bottom; the filtering nets are arranged at the bottom and the side surface of the filtering frame; the filtering material is arranged at the bottom of the filtering frame; the flow guiding device is mounted in the filtering frame. With the adoption of the rainwater filtering device, rainwater can be subjected to multi-grade treatment from the source, and pollutants such as granules, floating objects, nitrogen, phosphorus, oil and grease in rainwater can be separated; the intercepting effect is good; the pollution caused by that pollutants in rainwater is directly discharged to pollute natural water can be avoided.

The invention discloses an automatic hydraulic-control initial rainwater diverting device. The device comprises a well body in which a partition board structure is arranged, and the well body is partitioned into a late rainwater treating chamber in the upper part and an initial rainwater collecting chamber in the lower part by the partition board structure, wherein the late rainwater treating chamber is internally provided with a fixing support and connected with a water inlet pipe and a water outlet pipe, the water inlet end of the water outlet pipe is provided with a filtering structure, a water flowing passage is formed in the partition board structure, the fixing support is connected with an automatic hydraulic-control seal valve structure which is hermetically matched with the water flowing passage, the initial rainwater collecting chamber is connected with an initial rainwater discarding pipe, and the diameter of the water inlet pipe is larger than that of the initial rainwater discarding pipe. The device is capable of diverting initial rainwater before recycling, with automatic hydraulic control during the whole process and without the need of external power; and the device is easy to operate and has the advantages of being energy-saving and durable and being not prone to blockage.

The invention relates to the technical field of valves for petroleum drilling, in particular to a splash-proof joint of a square drill rod. The splash-proof joint is mounted on the lower portion of the square drill rod and comprises a braking piston barrel, a spring check valve plate and an outer barrel, drill rod threads are formed on two sides of the outer barrel, an upper female buckle of the outer barrel is connected with the square drill rod while the lower male buckle of the same is connected with a drill rod joint, a valve seat is mounted at the bottom of a shoulder inside the outer barrel, a limiting sleeve is mounted on the upper portion of the valve seat, and two elastic clamping springs are mounted on the upper portion of the limiting sleeve and clamped in a clamping spring groove of the outer barrel to limit the limiting sleeve and the valve seat at corresponding positions of the outer barrel. During well drilling, a full-bore drilling liquid circulating passage with diameter phi greater than 58mm is provided; during buckle releasing, a water hole of the square drill rod is sealed, and enough pressure of an upper mud liquid column can be borne; during well drilling, a splash-proof valve plate does not contact with mud, so that prolonging of service life of the valve plate is facilitated; the splash-proof joint is simple in structure and needless of external power, and energy resources are saved.

The invention discloses a power transformation box with a magnetic variation type heat dissipation and cooling function, and belongs to the technical field of power transformation boxes. According to the transformation box, through arrangement of a magnetic variation cooling body, when the temperature in a box body is relatively high, a magnet block is heated and demagnetized, so that a magnetic variation refrigerant can be triggered to absorb heat and effectively cool the interior of the box body; a ventilation pipe can be conducted, air with heat in an elastic ball bag is exhausted out of the box body to cool the box body; through ingenious design of a damping driving and sucking assembly, after the air in the elastic ball bag is exhausted, the air with the low temperature can be sucked in from the outside again, the ventilation pipe is blocked again, and heat dissipation and cooling of the box body can be conducted repeatedly and continuously. Compared with the prior art, on the premise that sealing of the box body is not affected, heat dissipation is carried out by discharging and sucking air, the cooling function is achieved, the heat dissipation efficiency is high, the effect is good, additional power is not needed, the operation cost is low, and practicability is greatly improved.

The invention relates to an unpowered rain sample quantitative fraction collector. The collector comprises a plurality of rain sample collection funnels which are arranged on a box body cover plate and a rain sample quantitative fraction collection part, wherein the rain sample quantitative fraction collection part is arranged in a box body and comprises a plurality of balancing plates; a vertical balance pointer is arranged on the bisected center line of each balancing plate; the two sides of the bisected center line are respectively provided with a supporting shaft; the balancing plate can rotate around the supporting shaft; a balance indicating dial is fixed on a supporting shaft support frame; the two ends of each balancing plate are respectively provided with a balancing nut; the two end faces of each balancing plate are provided with identical positioning collars; a balancing bottle and a rain collection bottle are respectively arranged in the two collars; the rain collection bottles are respectively positioned below the rain sample collection funnels; the rain sample collection funnels are freely communicated with the rain collection bottles through latex tubes; a base plate which can freely rotate is hinged on a bottom plate under each balancing bottle; and the vertically lifting height of the base plate is just equal to the distance between the balancing plate and the bottom plate when the balancing plate is balanced. The unpowered rain sample quantitative fraction collector is simple to manufacture and essentially realizes the simplification, quantification, fraction and standardization of rain sample collection.

The invention relates to a temperature control valve for automatically switching a flow direction according to a water temperature and belongs to the field of manufacturing of water heating equipment. The temperature control valve is characterized in that: a water flow outlet is formed in a valve cover; a water flow inlet is formed below the water flow outlet; the water flow outlet is communicated with a water outlet B; the water flow inlet is communicated with a water inlet A; and a through hole at the lower end of the valve cover is communicated with a water outlet C. By the temperature control valve, a higher-temperature thermal medium flowing out of radiating equipment is conveyed back to the radiating equipment, the aim of repeated heat utilization is fulfilled, and backwater at a low temperature is directly conveyed back to a boiler room; and when the device automatically switches the flow direction, external power is not needed.

The invention discloses a spiral flow type anti-deposition reverse U-shaped pipe for a steam generator. The spiral flow type anti-deposition reverse U-shaped pipe comprises a barrel-shaped reverse U-shaped pipe wall and a spiral baffle plate arranged in the wall, the spiral surface of the spiral baffle plate is formed through the spiral movement of a straight line segment perpendicular to the central line of the reverse U-shaped pipe, wherein the length of the straight line segment is equal to the radius of the reverse U-shaped pipe, the outer edge of the spiral baffle plate is connected with the inner wall of the reverse U-shaped pipe, and the spiral angle of the spiral baffle plate is 20 to 50 degrees. By means of the spiral baffle plate, the original linear flow of the fluid is changed into continuous spiral flow, and a heat transfer pipe bundle is scoured in a spiral flow mode to prevent particulate matter depositing on the pipe wall. The reverse U-shaped pipe is featured with simple structure and convenience in assembling and disassembling and capable of effectively improving the economical efficiency, safety and reliability of the U-shaped pipe of the steam generator.

The invention provides a self-operated discharging valve which comprises a valve cover, a middle valve body, a valve clack, a sealing ring, a pressing ring and a lower valve body, wherein the sealing ring is fixed in the valve cover through the pressing ring to form a sealing pair with the valve clack, the valve cover is connected with the middle valve body through a fastening member, the middle valve body is connected with the lower valve body through a fastening member, a piston is further arranged in the middle valve body, and a rod portion of the valve clack extends into the piston and is fixed on the piston through a fixing plate and a connection pin. The piston is connected with the middle valve body and the lower valve body through an O-shaped sealing ring, a boss is further arranged on the piston, a spring is further installed between the lower portion of the boss and the end face of the lower valve body, an adjusting ring is further arranged on the lower portion of the spring, a plurality of thread holes are arranged on the end face of the lower valve body under the adjusting ring, and adjusting screws are arranged in the thread holes. The self-operated discharging valve has the advantages of being capable of being opened by self weight of media without any external power and being capable of achieving on-line stepless regulation.

The invention discloses a bus fire extinguishing device based on atomization spraying. The interior of a liquid storage tank is partitioned into a liquid storage chamber and a gas inflation chamber through a deformable diaphragm; the liquid storage chamber communicates with a liquid outlet; and the gas inflation chamber communicates with a gas inlet. The interior of a gas generation mechanism is partitioned into a chemical agent chamber and a buffering gas chamber through a partition plate; the chemical agent chamber communicates with the buffering gas chamber through gas holes in the partition plate; the buffering gas chamber communicates with the gas inflation chamber; and the ignition end of an ignition mechanism is located in the chemical agent chamber. The optimally-designed bus fire extinguishing device based on atomization spraying is reasonable in structural design; the gas generation mechanism is made to react and generate gas through the ignition mechanism; and the interior of the gas inflation chamber is inflated with the generated gas through the buffering gas chamber, and therefore a water-series fire extinguishing agent in the liquid storage chamber is pressurized through the deformable diaphragm, atomization spraying is achieved, the size is small, installation is convenient and fast, fast fire extinguishment in a closed space can be achieved without external power, injuries to human bodies are avoided, and the fire extinguishing efficiency is high.

The invention relates to a backward flow type tail gas treatment device comprising a tail gas exhaust port. The backward flow type tail gas treatment device is characterized in that the tail gas exhaust port extends into a liquid tank; a plurality of layers of filter screens provided with a plurality of rows of transverse through grooves are arranged on the level part of the liquid tank; and the filter screens are arranged at intervals. Through introducing tail gas exhausted from boilers and other industrial process equipment to liquid, the invention can clean away large amount of dust, sulfide and other pollutants carried in the tail gas, thereby self filtering can be achieved without the need of external power.

The invention relates to the field of assembly of grooved connection pipeline rubber rings, in particular to a grooved connection pipeline rubber ring assembler and a method of using the same; the assembler comprises pipeline fixing clamps, fasteners, fixing retainers, a cylinder rack, a gear shell, a gear, a rubber ring retainer, a nut and the like; the assembler is structurally characterized in that the pipeline fixing clamps are connected to the fixing retainers, the fixing retainers is seated at the top end of the cylindrical rack, the rubber ring retainer is fixed to the gear shell via the fasteners, the gear shell sleeves the cylindrical rack through the round hole its middle, the gear shell sleeves the cylindrical rack through the middle round hole, the gear is packaged in the gear shell and is connected with a lever rod through a shaft, and the shaft at one end of the lever shaft can drive the rubber ring retainer to move up and down; therefore, the gear shell can drive the rubber ring retainer to move freely up and down through the tooth meshing relation of the teeth and the gear and the teeth a cylindrical rack, and the gear shell can drive the rubber ring retainer to freely move up and down. With the combination of combined machining and standard parts, the grooved connection pipeline rubber ring assembler is reasonable in structure, simple to mount and easy to implement, and is particularly suitable for projects with grooved connection pipelines.

The invention discloses a continuous preparation device of rare earth compound precipitates. The device comprises a horn-shaped reaction chamber, a self-suction stirring device, a feed pipe I, a feed pipe II, a reflux pipe, a purifying pipe, a clearing chamber, an overflow pipe and a pump I; the self-suction stirring device is fixedly mounted at the top in the horn-shaped reaction chamber; the lower part in the horn-shaped reaction chamber is connected with the feed pipe I and the feed pipe II; the clearing chamber is arranged on one side of the horn-shaped reaction chamber; the lower part of the clearing chamber is conical; the pump I is fixedly mounted at the conical bottom of the clearing chamber; the upper part of the clearing chamber is connected with the overflow pipe; the middle part of the clearing chamber is connected with the purifying pipe; the other end of the purifying pipe is connected to the upper part of the horn-shaped reaction chamber; the lower part of the clearing chamber is connected with the reflux pipe; and the other end of the reflux pipe is connected to the bottom of the horn-shaped reaction chamber. The device can realize continuous preparation of the rare earth compound precipitates, and is excellent in operation continuity, high in productivity, low in energy consumption and high in consistency of produced products.

The invention discloses an electrostatic powder coating production device and a preparation method thereof.The electrostatic powder coating production device comprises a stirring box, a motor is fixedly arranged in the middle of the top of the stirring box, and the output end of the motor penetrates through the top of the stirring box to be fixedly connected with a stirring rod. According to the electrostatic powder coating production device and the preparation method thereof, through mutual cooperation of the branch breather pipe, the storage chamber, the air bag and the material limiting block, the size of the exposed area of the material control mechanism can be flexibly adjusted, then the size of a gap between the material control mechanism and the inner wall of the discharging pipe is controlled, the discharging amount of materials is accurately adjusted, and it is guaranteed that all tablets are the same in size; through mutual cooperation of the main ventilation pipe, the sleeve and the scattering blade plates, materials entering the material collecting chamber can be further scattered and mixed, the situation that the materials which are unevenly stirred in a large range in the stirring box are discharged is avoided, external power is not needed, and full scattering can be achieved through the gravity of the materials.

The invention provides a portable outdoor water purification filter element. The portable outdoor water purification filter element comprises a suction pipe cover, a suction nozzle, a water purification structure and a water bag connector. The portable outdoor water purification filter element is precise and small in structural design and convenient to carry, does not needed to be connected with an external power supply, and is combined with high-flux ultrafiltration, chelate fiber adsorption and activated carbon fiber and ion exchange fiber filtering technologies to effectively remove organicpollutants, suspended solids, dust, heavy metal ion pollutants, various pathogenic bacteria, microorganisms, peculiar smells and other pollutants in water; all the parts are easy to clean and replace, so the service life of the portable outdoor water purification filter element is prolonged; and the portable outdoor water purification filter element meets the requirements of outdoor exploration,field survival, tourism and leisure, mountaineering and hiking, geological exploration, emergency rescue, earthquake flood, individual combat, field camping and the like on drinking water, and ensuresdrinking water safety.