313results about How to "Reduce drainage" patented technology

An intelligent water draining system of urban roads is applied to road surfaces and a water well. The intelligent water draining system of the urban roads comprises a water draining well lid, a hydraulic device and a pressure sensor. The water draining well lid comprises a fixed well lid and a movable well lid. The fixed well lid is fixedly inset into the road surfaces, the hydraulic device is fixed on the side wall of the water well and is connected with the movable well lid, the hydraulic device is electrically connected with the pressure sensor, and the pressure sensor is arranged on the fixed well lid. According to the intelligent water draining system of the urban roads, the degree of opening of the water draining well lid can be controlled according to the depth of surface gathered water, and the purpose of draining water fast is achieved. The water flowing volume of a water well lid is controlled according to the road surface rain volume, rain water can be effectively drained to the water draining system to reduce the surface gathered water, and riding comfort and pedestrian safety in sunny days or days with small amount of rain can be guaranteed. The intelligent water draining system is arranged under the road surfaces, so that the intelligent water draining system is not damaged by people easily.

The invention relates to a construction process of a roadbed structure, in particular to a construction process of a roadbed structure with sand-based water-permeable bricks. The construction process is applicable to road surfaces of squares, business streets, gardens and the like and occasions such as outdoor tennis courts, basketball courts and ground track fields. The construction process comprises the following process steps: A, performing construction preparation; B, surveying and setting out; C, performing base layer construction; D, performing bearing layer construction; E, performing leveling layer construction; F, paving the sand-based water-permeable bricks; G, performing crack pouring; H, maintaining; I, cleaning on site. According to the construction, the sand-based water-permeable bricks serve as paving materials, so that the defects brought by the materials can be overcome well. Excellent water permeability and air permeability are achieved, so that rainwater can be permeated into the ground quickly, the ground surface water is supplemented, the humidity of soil is improved, and the survival conditions of ground surface plants and microorganisms are improved; water and heat can be absorbed, and the temperature and the humidity of local space of the ground surface can be adjusted, so that a great effect of relieving urban heat island effect is achieved.

A soft contact lens comprises a module embedded in a soft contact lens material. The module comprises a hydrophobic material having channels formed therein, such that a surface tension of the aqueous solution within the channels inhibits release of therapeutic agent, such as a drug, through the one or more channels. The surface tension of the aqueous solution within the channel can inhibit diffusion of the therapeutic agent through the channel. The channels may comprise a cross-sectional area and optionally a length, such that therapeutic agent is released through the channels when pressure of the eyelid increases. In many embodiments, the contact lens is configured to inhibit release of the therapeutic agent when the contact lens comprises a free floating configuration, for example when stored in a contact lens solution, such that the storage time of the contact lens can be increased substantially.

A pneumatic tire is provided which has sufficient total properties and mass productivity of a tire without reducing drainage capability due to narrowed circumferential grooves, achieves high design flexibility of tread patterns and stiffness of land portion as intended, and also effectively reduces undesired air column resonance noise produced by the circumferential grooves. The pneumatic tire includes a circumferential groove 3 which continuously and circumferentially extends in a straight line and arranged on a tread 1, and resonators 5 which are open to the circumferential groove 3 and terminate in a land portion 4, each of the resonators 5 being configured with an air chamber 6 open toward a land portion surface, and a narrowed neck 7 for communication between the air chamber 6 and the circumferential groove 3, and the narrowed neck 7 has the plane maximum width w0 which is within a range of from 3 to 50% of the plane maximum width w1 of the air chamber 6.

The invention discloses a rainwater penetrating-discharging integrated ecological system, which comprises penetration inspection wells distributed on the ground of residential areas, penetration drainage ditches which are in a network shape and connected on all the penetration inspection wells and transversal connecting pipes between the penetration inspection wells and the penetration drainage ditches. Permeable holes are formed on the side walls and at the bottoms of the penetration inspection wells, a gravel layer is laid in the peripheries of the penetration inspection wells, a layer of permeable geotextile is laid in the peripheries of the gravel layer, wellheads of the penetration inspection wells are provided with dirt-catching and sewage-blocking baskets therein and permeable well covers are covered on the wellheads; permeable holes are formed on the side walls of the penetration drainage ditches, the peripheries of the penetration drainage ditches are provided with the gravel layer, the peripheries of the gravel layers are provided with a layer of permeable geotexile, and the top parts of the penetration drainage ditches are covered with grate covers of the drainage ditches. The invention has the advantages of simple design principle and convenient construction. The invention can save water consumption, reduce rainwater runoff in a city and relieve municipal drainage pressure, thereby not only realizing early draining of rainwater, purifying water, but also realizing the penetration of rainwater, conserving underground water source and beautifying the peripheral ecological environment.

Flue gas desulfurization by the magnesia wet method and a recovering process of automatic concentration of the product relates to the improvement of the existing flue gas desulfurization by the magnesia wet method and product recovering process by the thick slurry process, belonging to the technical field of flue gas desulfurization and product recycling. The process is technically characterized in that the thick slurry is shunted in the process of recyclable absorption and desulfurization; spray cooling is carried out to cool flue gas; inspissation liquid is oxidized to generate MgSO4; then filtration, crystallize and the like are carried out to generate mm level MgSO4. 7H2O or MgSO4. H2O crystal grain. The invention not only features in low cost, but also has low spray flow rate and power consumption as well as outstanding water conservation effect; what is more, the invention avoids external power consumption of the concentration of the desulfurized product, can remarkably improve stability and economical efficiency of recovery. All steps of automatic concentration are linked with one and another, as a result, the application range of the invention is expanded to high-sulphur coal and technical support is provided for more economical, effective and direct recovery of magnesium sulfate monohydrate.

The invention relates to the improvement of a method for treating polymer-containing sewage of an oil field. The method is characterized in that microorganisms are formed by mixing bacillus cereuses, bacillus megateria, bacillus subtilis, candida lipolytica, bacillus brevis and pseudomonas fluorescens; after microorganism aerobic degradation, post filter treatment is carried out; obligate microorganisms are used for degrading oil and organic pollutants bonded on polymers, thereby improving the separability of surplus inorganic substances and polymer-containing substances; and meanwhile, the degradation of the oil and the organic pollutants creates a condition for subsequently prolonging the filter period of a filter material. The invention has the advantages of simple process, simplified flows, convenient running and management, good treatment effect, low treatment and running cost (0.65-0.7yuen / ton of water, which is 2 / 3 of that of conventional treatment), no need of adding any drug,no treatment secondary pollution and stable treatment effect, can guarantee that treated yield water can stably reach 5.5.2, has small sludge quantity and does not need a sludge treatment system, thereby solving the treatment problem of polymer-containing sewage of an oil field.

The invention is a contaminant preventing process and rinsing method for water discharging channels, which belongs to contaminant releasing process and rinsing technology field, the character lies in: the water discharging system includes water inlet connected by channels, discharging pump at water inlet, rinsing device ejecting barn, unresisted reverse-stop valve and water discharging channels, when the channels are assembled, uses rinsing device to eliminate the impurities in the channel at first, then carries on rinse to physical contaminant in the channels periodically, prevents the chemical contaminant from being formed. The invention reduces the affect of contaminant to water discharging process, maintains the channel expedite.

The invention discloses an inflation tire, which can be used to maintain the sideslipping performance, the performance on wet road surfaces of the vehicle, and to improve the heal-and-toe wear resistance performance of the vehicle. The inflation tire (1) is provided with a plurality of grooves(3) of a pair of tire shoulder main grooves(4). A land part width (Ls) of a tire shoulder land part(6) is 10 to 15% of a tire surface grounding width (TW). The tire shoulder land part (6) is provided with a first tire shoulder horizontal groove (15), which extends from the part close to the tire surface grounding end (Te),and is inclined at an angle of 10 to 35 degrees relative to the tire shaft; a second tire shoulder horizontal groove (16), which is inclined from the part between the first tire shoulder horizontal grooves (15, 15) at an angle of 10 to 35 degrees towards the axial direction of the tire, and can form a terminal on the tire shaft more close to the inner side than the first tire shoulder horizontal groove(15); a third tire shoulder horizontal groove (17), which is inclined from the outer side of the tire surface grounding end (Te) of the tire shaft towards the inner side of the tire shaft, and can form a terminal close to the tire surface grounding end(Te).

A large-span truss-type floating platform on sea surface is disclosed. Its main body is a truss structure. Its advantages are light dead weight, high stability, and low cost.

The invention discloses a special-shaped fuel cell gas diffusion layer, a preparation method, a fuel cell and an assembly method. The special-shaped fuel cell gas diffusion layer comprises a carbon fiber base material layer and a microporous layer which are sequentially stacked, and at least one side of the carbon fiber base material layer is provided with convex parts and concave parts which arecontinuously and alternately arranged, so that the side surface is of a convex-concave special-shaped structure. The special-shaped fuel cell gas diffusion layer has a convex-concave special-shaped structure; therefore, when the gas diffusion layer and the bipolar plate are assembled, the gas diffusion layer is prevented from being pressed into a runner of the bipolar plate in the assembly processof the gas diffusion layer and the bipolar plate to cause reduction of gas diffusion performance and drainage performance in a mode that the convex part of the diffusion layer is in contact with theridge part of the bipolar plate and the concave part corresponds to the runner area. Meanwhile, the convex part is gradually thinned to the same thickness as the gas diffusion layer in the concave part area in the compression process of assembling the convex part and the concave part, and the gas diffusion layer is prevented from being broken by shear stress in the ridge and groove transition area.

The invention relates to an immediate processing method for hydraulic filling an ultra-soft foundation by modified vacuum preloading and water-covering preloading. The technical proposal of the invention comprises the following steps of: building a float bridge on a mud area in a causeway, laying a plastic woven cloth on the mud area, fixing the plastic woven cloth on the causeway and the float bridge, horizontally laying a water discharge branch pipe on the plastic woven cloth, inserting a plastic water discharge board around the water discharge branch pipe in the mud of the mud area, horizontally laying a water discharge main pipe on the plastic woven cloth in the direction perpendicular to the water discharge branch pipe, connecting one end of the water discharge main pipe to a vacuum pump, laying a geotextile on the water discharge main pipe and the water discharge branch pipe, laying a vacuum film on the geotextile, and arranging a water load on the vacuum film. The invention solves the technical problems of unenforceable construction existing in the traditional vacuum preloading foundation treatment method, and has the advantages of simple process, convenient construction and lowered cost. Besides, after the hydraulic filling of the foundation is completed, the foundation can be immediately processed, thereby greatly shortening the foundation processing period, and ensuring that the invention is a very economical and practical soft foundation processing method.

The invention discloses an integrated reuse equipment for bathing waste water treatment in hotel and the method. The equipment comprises tube mixer, metering pump, hair filter, drug groove, fiber ball filter, ultra-filtration membrane module, ClO2 disinfection groove, storage vessel, security filter core and pressure pump. Bathing waste water generated in hotel is collected and filtered by new micro-flocculation fiber of polyester high elastic yarn. After outputting water achieves the demand of <<water quality of urban miscellaneous water reused in city>> (GB / T 18920-2002), it can return in hotel to flushing in toilet, greening and so on. Residual ultra-filtration outputting water is carried with disinfection treatment by nanometer filter film device and. After outputting water achieves the demand of <<health standard of living and drinking water>> (GB5749-85), it can return in hotel for washing, bathing and so on where the water quality is demanded higher. The process and relative equipment is provided with simple flow, easy operation and management. It is very suitable for reclaimed water reuse in hotel.

The invention provides a method and a device for preventing interior of a disengager from coking by quickly extracting oil gas from the fluidized catalytic cracking disengager of petroleum, wherein the device comprises a primary cyclone separator, a straight connection component which is arranged on the tail end of exit tube of the primary cyclone separator, a top cyclone separator, an oil gas drainage tube, an inertial separation component which is on the lower end of inlet of the drainage tube, a stripping section, an anti-coking steam ring and a disengager. The oil gas and the steam within the disengager are discharged out from the oil gas drainage tube only, the lower end of opening of the oil gas drainage tube is equipped with the inertial separation component so as to reduce the catalyst which is entered into the oil gas drainage tube by splashing while discharging from the dipleg of the primary cyclone separator and the dipleg of the top cyclone separator, the exit tube of the primary cyclone separator is tangentially connected to the oil gas drainage tube by means of the straight connection component, and a rotational flow is formed on the upper section of the oil gas drainage tube, so that a vortex low-pressure region is formed and the drainage draft of the oil gas is increased. The method and the device for inhibiting coking of residue fluid catalytic disengager provided by the invention have the advantages that the structure is simple and compact, the fast and efficient separation between the oil gas and the catalyst is ensured, the oil gas within the space of the disengager is extracted quickly, the retention period of the oil gas within the disengager is reduced greatly, the coking phenomenon within the disengager is inhibited effectively and therefore the operation cycle of the catalytic device is prolonged.

The invention discloses a quick drainage system utilizing capillary water permeating and draining belts and a drainage method thereof, which solve the problems of low efficiency and easiness in blockage and the like of an existing drainage system. The quick drainage system comprises a main drainage pipe (1) and branch drainage pipes (2) arranged on the main drainage pipe (1), and is characterized in that the capillary water permeating and draining belts (3) are mounted on the main drainage pipe (1) and the branch drainage pipes (2). The conventional drainage method and the capillary water permeating and draining method are combined and advantages thereof are integrated, so that drainage is high in efficiency while the drainage pipes cannot be blocked.

Disclosed is a water savable flush toilet including a sealed water tank provided with a water discharge hole opened and closed by a ball-shaped closure disposed therein, a portion of the water tank being connected to a water supply tube and the water discharge hole being formed in a funnel shape; an opening device for opening the water discharge hole by moving the ball-shaped closure, the opening device being disposed in a water discharge tube connected to the water discharge hole, a toilet bowl connected to the water discharge tube to receive the water and provided at a bottom with a water / filth discharge hole on which a magnet is installed, and a bowl closure connected to the opening means by a wire supported on a roller to be opened to discharge water / filth through the water / filth discharge hole and to be closed by the magnet.

The invention discloses a drainage construction method for a tunnel passing through a clastic rock steeply inclined reverse thrust water-rich fault. The drainage construction method is characterized in that a construction tunnel main cave is divided into a rear side tunnel section, a front side tunnel section and a middle portion tunnel section passing through the clastic rock steeply inclined reverse thrust water-rich fault, wherein a by-pass pilot tunnel and a drain cavern are formed in the same side of the construction tunnel main cave. When drainage construction is carried out in the construction tunnel main cave, the drainage construction method comprises the steps of: 1, carrying out preliminary excavation construction on the rear side tunnel section; 2, synchronously carrying out excavation construction on the rear side tunnel section and a drainage hole body of the drain cavern; 3, synchronously carrying out excavation construction on the rear side tunnel section, the drainagehole body of the drain cavern and a rear side by-pass pilot tunnel section; 4, and carrying out construction on the front portion drainage hole body, and synchronously carrying out construction on theby-pass pilot tunnel and the tunnel main cave. The drainage construction method provides a new construction working plane by means of the by-pass pilot tunnel, improves the working efficiency, provides the high-altitude drainage hole between the tunnel main cave and the by-pass pilot tunnel, can drain water embedded in the fault to the greatest extent, reduces water pressure in the fault in frontof a tunnel face, ensures safety construction of each tunnel face and can shorten the construction period.

The invention relates to a water level and water quality layering control weir of a drainage ditch of a rice field. Three types of five weir plates in different heights are designed according to the characteristics of each growth period of rice; the heights of the five weir plates are determined according to the buried depth of underground water required by the rice in different growth periods; by combining the five weir plates, outlet control weirs in different heights of the drainage ditches can be formed, and the drainage control requirements of rice reviving, early stage of tillering, late stage of tillering, booting stage, tasseling stage, milky ripeness stage, yellow ripening stage and late stage of fertilizing; two hand grabs are arranged on the lateral surface of each weir plate; an arc rubber waterstop band is arranged at the bottom of each weir plate which ensures overall seamless joint water stop among the weir plates; doorframe grooves are arranged on two sides of the drainage ditch; rubber waterstop bands are arranged on two sides in the doorframe grooves; the weir plates can be slidingly taken out or placed into the frame grooves and cannot leak water; two pull rod handles for taking and placing the weir plates are additionally arranged; and rhombus rings of the pull rod handles can be sleeved with hand grabs on the weir plates to place or take out the weir plates from the doorframe grooves on two sides of the drainage ditch. The invention has the advantages that the combined height of the weir plates cannot cause the flooding damage on the rice, can be used for retaining nitrogen, phosphor and other nutrients in the rice field and reducing the pollution of high-concentration nitrogen and phosphor in the drain to a water body. The invention saves the water consumption for irrigation, improves the utilization rate of underground water resources, has favorable waterstop effect among the weir plates and is convenient to manually operate.

The invention discloses a wet method dedusting device. The wet method dedusting device comprises a supersonic wave atomizer used for spraying fine water mist towards a smoke flow channel to form a supersonic wave atomization region, a sound wave generator arranged at the lower position of the supersonic wave atomizer according to the smoke flow direction and used for establishing a sound field in the smoke flow channel to form a sound wave coagulation region, and a liquid drop catcher arranged at the lower position of the sound wave generator according to the smoke flow direction used for catching coagulated dust-containing liquid drops after going through the supersonic wave atomization region and the sound wave coagulation region to form a dust collection region. The place occupation, the total cost and operation expenses of the dedusting device after wet method desulphurization can be lowered greatly, waste water discharge of wet method dedusting is reduced, and ultraclean discharge of a chimney is achieved. In addition, because there is no high voltage electrostatic apparatus, internal members can be made of non-conductive corrosion-resistant non-metallic materials, and there are discharge burning operation risks.

The invention discloses a grouting repairing method of a water stopping curtain, which comprises the following steps of: (1) measuring and labeling grouting holes, wherein the grouting holes are divided into two sequences, namely a sequence I and a sequence II, the holes of the sequence I and the holes of the sequence II are arranged transversely at equal intervals, and the holes of the sequence I and the holes of the sequence II are arranged longitudinally in rows at equal intervals; (2) grouting the holes of the sequence I: firstly drilling the holes of the sequence I, inserting shock tubes to the holes of the sequence I, then closing the holes of the sequence I and grouting by sections, and finally cleaning the tubes for later use; and (3) grouting the holes of the sequence II: firstly drilling the holes of the sequence II, inserting shock tubes to the holes of the sequence II, then closing the holes of the sequence II and grouting, and finally cleaning the tubes for later use. By the method, grouting is conducted by holes of two sequences according to the principle of grouting at intervals and densifying by sequences; the holes of the sequence I are grouted to fill the holes of the soil layer; the holes of the sequence II are grouted to crack the stratum and form a seepage-proofing curtain in the stratum; and the finally repaired curtain can effectively reduce the displacement of a foundation pit, the underground erosion of the stratum around the foundation pit, and settlement of the foundation and buildings.

The invention discloses an alga-rich trench system for farmland tail water treatment and a treatment method. The alga-rich trench system comprises an alga-rich trench, a flow pusher, a water level control gate, a draining communicating culvert pipe, an aquatic organism pond and a regulating station and is characterized in that farmland tail water discharged from farmland enters the alga-rich trench system, the flow speed of the farmland tail water is kept by the action of the flow pusher, an algal-bacterial symbiotic system in the trench purifies the tail water, the purified water enters the aquatic organism pond through the draining communicating culvert pipe for further purification, and the water processed by the trench-pond system is lifted to the farmland by the regulating station for recycling. The alga-rich trench system has the advantages that the farmland tail water is deeply purified by the trench-pond combination process, a common trench is modified into the alga-rich trench, the pollutant removing ability of the trench is increased effectively, the processed tail water is lifted back to the farmland for recycling, purposes of saving irrigation water and nitrogen and phosphorus resources, reducing the amount of drained water, reducing water environment pollution pressure, and the like are achieved.

A method and apparatus for electronically controlling an electric fence energizer. The method is characterized by the step of sending a user selectable coded signal along an electric fence line to the electric fence energizer, said coded signal causing the state of the electric fence energizer to change. The coded signal may come in a variety of forms, and in one embodiment the coded signal may comprise a number of short pulses sent predetermined times apart. Other types of signals may be sent with variations in amplitude or other differentiating characteristics. A coded signal that varies in the time domain is preferred due to signal attenuation. According to a preferred aspect of the present invention, a signalling device for interaction with a fence system is provided. The device has a power supply, signal producing means, and control means for the signal producing means. In operation, the power supply can provide power to the signal producing means, which is controlled by the control means to send a coded signal along the fence system. The preferred embodiment for the signal producing means is a capacitor, for the power supply, a battery, and for the control means a programmed microprocessor.

The invention discloses a water proofing and leak repairing construction method for a sewage pipe network below the underground water level. The method is performed through the following steps that 1, sewage removal is performed on a pipeline; 2, leak points are found and marked; 3, a precipitation well is drilled, and precipitation processing is performed on a construction well point; 4, leaking stoppage is performed on the interior of the pipeline; 5, a grouting hole is drilled, and cement paste is backfilled and grouted. According to the method, a lining pipe does not need to be used, the construction cost is saved by 50% compared with the method that water proofing and leak repairing are performed on the sewage pipe network in a lining pipe mode, and the high application and popularization value is achieved; the actual available pipe diameter of the sewage pipeline cannot be reduced, and the phenomenon that the drainage capacity of the sewage pipeline is reduced due to water proofing and leak repairing cannot occur; by grouting on the exterior of the pipeline to form a grouting layer at the periphery of the sewage pipeline, the strata at the periphery of the sewage pipeline is reinforced, and effective protection on the sewage pipeline is formed to prevent formation stress from destroying the sewage pipeline.

The invention relates to a hot film coupling seawater desalination process, which comprises a sea water pretreatment procedure, a hot method seawater desalination procedure and a film method seawater desalination procedure, wherein the hot method seawater desalination procedure comprises evaporation and condensation; the film method seawater desalination procedure comprises sand filtering, ultra filtering and reverse osmosis; according to different relationship between the cooling water discharging water quality generated through the hot method seawater desalination and the water inlet water quality of the film method seawater desalination, the water inlet resources of the film method seawater desalination are flexibly controlled. The hot method seawater desalination and the film method seawater desalination are organically combined; the seawater and heat utilization rate is high; the film method seawater desalination sufficiently utilizes the hot method seawater desalination heat; the film flux is increased; the seepage pressure is reduced; the efficiency is improved; the cooling discharge water generated by the hot method seawater desalination is directly used as the film method seawater desalination inlet water, so that the seawater taking quantity and the water discharging quantity are obviously reduced; the hot method seawater desalination and the film method seawater desalination share one set of pretreatment device; the cost is reduced; finished product water tanks are respectively set for the film method seawater desalination and the hot method seawater desalination; the operation is flexible; different requirements can be met.

The invention discloses a construction method for a tunnel passing through a high-angle thrust water-rich and sand-rich fault. The method comprises the steps: 1, performing the preliminary excavationand the supporting construction of a rear tunnel segment; 2, performing the synchronous excavation and the supporting construction of the rear tunnel segment and a water drainage hole body of a waterdrainage hole; 3, performing the synchronous excavation and the supporting construction of the rear tunnel segment, the water drainage hole body of the water drainage hole and a rear detouring headingsegment; 4, performing the excavation and the supporting construction of a front water drainage hole body, a front heating segment and a central tunnel segment; 5, performing the excavation and the supporting construction of a front tunnel segment. According to the invention, the water on the upper wall of the fault is drained through a high-level water drainage hole between a tunnel front hole and a detouring heading pit, and the auxiliary water drainage is performed through the detouring heading pit, and the fault condition in front of the tunnel face of the front hole can be explored in advance, thereby guaranteeing the construction safety of each tunnel face. The method employs the three-step method for the excavation of the tunnel front hole, employs double preliminary supporting structures for the full-section supporting after excavation, can guarantee the safety of the tunnel structure later, and shortens the construction cycle.

The invention discloses a heat exchanger. The heat exchanger comprises a plurality of heat exchange cores arranged in the vertical direction, a first collecting main, a second collecting main and a communicating piece. A heat exchange pipe of the upper heat exchange core of every two adjacent heat exchange cores is communicated with a heat exchange pipe of the lower heat exchange core through the communicating piece. Every two adjacent heat exchange cores are located in the different planes. Due to the fact that every two adjacent heat exchange cores are located in the different planes, condensate water generated by every two adjacent heat exchange cores flows in the different planes, multiple different drainage paths are provided for drainage of condensate water, the drainage amount borne by each drainage path is greatly reduced, the drainage efficiency of the heat exchanger is improved, the frosting speed of the heat exchanger is effectively reduced under the outdoor low-temperature and high-humidity working condition, the frosting amount is reduced, the refrigeration and heat exchange capacity and the heat exchange performance of the heat exchanger are improved, and energy consumption is reduced.

The invention discloses a water-permeable brick containing construction waste as well as a preparation method and a construction technology of the water-permeable brick, and belongs to the technical field of preparation of building materials. The water-permeable brick comprises a surface material and a bottom material, wherein the surface material is mainly prepared from components in parts by mass as follows: 70 parts of river sand, 24 parts of cement, 1 part of pigment and 5 parts of water; and the bottom material is mainly prepared from components in parts by mass as follows: 20 parts of cement, 30 parts of recycled fine aggregate, 45 parts of recycled coarse aggregate and 5 parts of water. The water-permeable brick containing construction waste has the advantages of low cost, high utilization rate of construction waste, good water permeation effect and the like. The preparation process of the water-permeable brick is simple to operate, low in cost, short in construction cycle, convenient in production, free of secondary pollution and suitable for mass production and wide application. The production cost of the water-permeable brick can be reduced while the construction waste can be reutilized. A water-permeable brick pavement has good water drainage and seepage functions, can relieve urban water logging and facilitates relief of the urban heat island effect.

A glaucoma drainage tube capable of being quantitatively adjusted through non-invasive type method comprises a hollow broad rubber hose and a narrow drainage tube which have the function of draining aqueous humor, inner tubes with the same length are arranged in the hollow broad rubber hose, a plurality of diaphragms are arranged in the inner tubes in an inclined mode, diaphragm support tubes are arranged between the adjacent diaphragms, a plurality of micro-holes are formed in the tube wall of the hollow broad rubber hose to make the inner tubes communicated with the outside of the hollow broad rubber tube, the tail end of the narrow drainage tube is communicated with the inner tubes and the front end is inserted in an anterior chamber so as to make an inner cavity of the inner tube at the front end of the diaphragm close to the narrow drainage tube, communicated with the narrow drainage tube, and the aqueous humor drained from the anterior chamber passes through the inner tube and is drained to nearby orbital tissue through the micro-holes of the hollow broad rubber hose; the diaphragms near the narrow drainage tube can be gotten through by lasers after an operation to gradually increase the diversion space between the narrow drainage tube and the diaphragms which are not gotten through and are close to the narrow drainage tube so as to gradually increase the drainage amount of the aqueous humor to reduce the intraocular pressure of orbital tissue, and therefore the non-invasive adjustment of the drainage amount of the glaucoma aqueous humor by the lasers in vitro is realized.

The invention provides a cooking utensil and a control method of the cooking utensil. The cooking utensil comprises a body, a heating device, a spraying device and a control device, wherein the body is provided with a hollow cavity structure for containing food, the heating device is arranged on the body and used for providing hot water, the spraying device is arranged on the body, one end of the spraying device is connected with the heating device, the other end of the spraying device is located in the cavity structure and used for spraying hot water to the surface of food, and the control device is arranged on the body and connected with the heating device and the spraying device and used for controlling the heating device and the spraying device to work. The cooking utensil comprises the body, the heating device, the spraying device and the control device, wherein the spraying device sprays hot water to food, food is then cooked, it is avoided that a large volume of water is used when cooking is conducted through a traditional water bath kettle, energy conservation and emission reduction are achieved on the basis of ensuring the nutritional taste and original flavor of food, the cooking time is shortened, and the use experience of a user is improved.

This invention discloses a building roof temp reducing and dust removal device including a water tank, pump water transmission pipe and a sprinkler in which the water tank in connected with the pump via the transmission pipe, the pump is linked to the sprinkler placed at the building roof via the transmission pipe and controller electrically. The said sprinkler is composed of a sprinkler and / or asprayer, the controller is signal receiver with data number. The said tank connected with a collecting device, filled with alkaline additives or perfume is designed with an overflow connecting to thedrain pipe, having the function of reducing city temp, easing up or eliminating the hot island effect.