296results about How to "Solve the problem of stagnant water" patented technology

The invention discloses a pressure-releasing structure of a basement anti-floating plate and a construction method thereof. The pressure-releasing structure comprises a cushion layer and a basement bottom plate on the cushion layer, wherein water-collecting pits are formed in the cushion layer and the basement bottom plate; a layer of hardpan is paved below the cushion layer; filtering layers are paved around the water-collecting pits; flow-guide pipes are paved in the hardpan and are gathered in the filtering layers; flow-leading pipes are arranged on the side walls of the water-collecting pits; and the water-collecting pits are communicated with the filtering layers through the flow-guide pipes. Water generating floatation outside a basement is led into the basement, so that the floatation is reduced. The hardpan is paved below the cushion layer, so that the problem that water outside foundation pits of the basement is gathered is solved, the underground water is collected through a flow-guide pipe arranged in the hardpan, the flow-leading pipes change the underground water into gravity water in the basement, and the problem of the floatation of the underground water is completely solved from the construction starting stage of a building.

The invention discloses an integrated rainwater system for a sponge city and a construction method of the rainwater system. The rainwater system comprises a middle green belt and water storage tanks, wherein the middle green belt comprises a vegetation planting area and a rainwater infiltration area; a concrete course is arranged at the lower end of the rainwater infiltration area; a rainwater pipe is arranged at the lower end of the concrete course, and the rainwater pipe is connected to the water storage tanks; water pumping pipes are connected from the interiors of the water storage tanks; bidirectional nozzles are arranged at the other ends of the water pumping pipes; and water pumps are connected to the water pumping pipes. In accordance with the shortcomings of the prior art and the characteristics of the sponge city, the rainwater system, which integrates water seepage, water storage, water purification and utilization, is designed, and the construction method of the rainwater system is correspondingly designed; by promoting the water seepage with the adoption of vegetation, the problem of road water-logging is solved through slow discharge and controlled release; and in addition, some impurities in the rainwater are separated on the basis of the purification capacity of the vegetation, and the rainwater is stored in the water storage tanks and is used for spraying roads and watering the vegetation in dry season, so that adverse effect caused by drought and flood seasons can be effectively relieved.

The invention provides an ecological permeable stratal configuration and belongs to the technical field of water collection and water intaking, and the ecological permeable stratal configuration can be used for solving the problems that because the existing urban surface soil layer is impermeable, moisture exchange and circulation can not be performed between the atmosphere and the soil layer, and after the situation lasts for a long time, the phenomena that the air in cities is extremely humid or extremely dry, and the water in soils below the surface soil layer continuously runs out are caused, thereby destroying urban ecological environments and affecting the human health, and the like. The ecological permeable stratal configuration comprises a surface layer and a water storing layer, wherein the surface layer is permeable and can cover the water storing layer, the water storing layer is arranged below the surface layer and can be used for storing water, and a permeation layer which can guide water flows to permeate downwards is arranged between the surface layer and the water storing layer in an appressed clamping mode. The ecological permeable stratal configuration has a good penetration function, and can achieve the rainwater drainage effect of a road surface; and meanwhile, when the outside is in hot dry climates, rainwater collected in the deep of the stratal configuration can be fed back to the air so as to achieve the effects of humidity adjustment and temperature reduction, thereby effectively solving two serious problems, namely, urban ponding and heat island effect.

The invention discloses a sponge concrete brick and application thereof. The concrete brick is prepared from concrete; the concrete disclosed by the invention comprises cement, sand, garden waste, regenerated stones and a brightener at the weight proportion of 100 to (100-140) to (200-290) to (5-35) to (0.15-1.15). According to the sponge concrete brick, optimal configuration of renewable resources of the garden waste material in an urban construction process is achieved by the garden waste. The concrete brick disclosed by the invention has the advantages of relatively good water absorptivity, water permeability and air permeability, relatively high strength, available raw materials, and low preparation cost; and green plants are easy to plant.

The invention discloses a tower crane foundation in a building basement and a manufacturing method of the tower crane foundation. The tower crane foundation is manufactured into an orthogonal beam slab type reinforced concrete tower crane foundation composed of an orthogonal beam and a slab. During manufacture, a pit of the tower crane foundation is dug in the building basement, and then the orthogonal beam is poured in a traditional mode of pouring reinforced concrete and the slab is poured on the orthogonal beam, and meanwhile, at least one circle of water retaining boards is fixedly inlaid around the slab; base plate surface ribs of basement base plates are embedded according to a traditional mode of pouring the basement base plates, and then the basement base plates are poured; and after the basement base plates are poured, the water retaining boards are inserted into the basement base plates around the slab, so that the orthogonal beam slab type reinforced concrete tower crane foundation is connected with the basement base plates into one. The tower crane foundation has the advantages of fastness, convenience and high efficiency in construction, low construction and operation cost, reliability in performance, safety in operation, convenience in operation and the like.

The invention discloses a concrete and a preparation method thereof. The concrete comprises cement, sand, stone, and garden wastes. Preferably, the garden wastes are fragmented garden wastes after grinding. The concrete is prepared by evenly mixing cement, sand, stone, fragmented garden wastes and water according to a weight ratio of 100:90-150:190-250:5-40:45-60. The garden wastes generated during the city construction process are recycled, and the wastes are converted into valuable resource. The concrete has the advantages of good water absorbing performance, water permeability, breathability, and high strength, and can be applied to parts that do not have high requirements on strength. Moreover, the raw materials are easily available, the preparation method is simple, and the preparation cost is low.

The invention relates to the field of coal exploitation, in particular to a prevention and treatment method for coal seam roof separation water. According to the method, in the process of advancing of a work face of a coal seam, a plurality of ground straight-through type water draining holes are formed from the ground to the coal seam, and full-hole penetrating of the straight-through type water draining holes is completed before the work face advances to the position 50 m away from the ground straight-through type water draining holes; and upper openings of the ground straight-through type water draining holes communicate with the ground, and final hole positions should completely exceed a fissure zone and extend to a caving zone, so that the separation water can be drained effectively. Surging disasters of the accumulated separation water can be effectively prevented, intra-hole overlying stratum deformation dynamic observation, fissure zone searching, underground water dynamic monitoring and the like can be carried out, the problem of the accumulated separation water is solved, the capacity of water draining equipment is guaranteed, and an emergency working function is achieved.

The invention discloses a device for intensively and fast draining water in a downward drainage drill hole. The device is characterized in that a three-way hole-sealing sleeve pipe composed of an inner pipe and an outer sleeve pipe is arranged in a drainage drill hole; an annular chamber used as an airflow channel is arranged between the side wall of the inner pipe and the side wall of the outer sleeve pipe, and an external air delivery pipe is communicated with the annular chamber; the inner pipe is used as a draining pipe, a nozzle at the bottom of the draining pipe is connected with a draining hose used for being inserted in the bottom of the drainage hole; the nozzle at the top of the draining pipe is provided with a water draining valve; and one path of the external air delivery pipe is connected with a high-pressure air pipe by an air inlet valve, and the other path is connected with a drainage pipeline by an air discharge valve. The device can effectively drain the accumulated water in the downward drainage hole, and ensure gas drainage effect.

The invention discloses a distribution network automatic ring main unit with high heat dissipation. The distribution network automatic ring main unit comprises a machine cabinet; a base is fixedly connected with the bottom surface of the machine cabinet; a storage battery is fixedly connected with the middle position of the top surface of the machine cabinet; a solar panel is arranged above the storage battery; the bottom surface of the solar panel is fixedly connected above the machine cabinet through a supporting block; storage boxes are fixedly connected above the left and right side surfaces of the machine cabinet respectively; a motor is arranged on the bottom surface of the inner cavity of each storage box; the motor is fixedly connected with the bottom surface of each storage box; the output shaft of the motor is connected with a rotary shaft through a coupler; one end, far from the motor, of the rotary shaft is movably connected with the inner wall of each storage box; wiring wheels are fixedly inserted and connected in the rotary shaft; and ventilation boxes are arranged on the left and right side surfaces of the machine cabinet. By virtue of the setting of the ventilation boxes, the interior of the machine cabinet can be ventilated to realize a heat dissipation effect at any time; by virtue of heat dissipation fans, heat dissipation is accelerated; and by virtue of a telescopic apparatus, the machine cabinet is effectively protected from rain water, so that the problem of poor heat dissipation of the automatic ring main unit is solved.

The invention belongs to the technical control field of water collection and drainage, rainwater filtration, purification, regulation and storage, and particularly relates to a regulation and storage system with functions of rainwater filtration, purification and collection. Lawns, storage tanks, municipal pipe networks, and both sides of motor vehicle roads are respectively provided with curbstones in the shape of rectangular troughs. Below the non-slip surface layer, there is a double-layer sidewalk rainwater collection temporary storage layer to collect rainwater, and a graded gravel layer, activated carbon core filter layer, water purification layer and non-woven geotextile layer to filter seepage water. Through the collection, purification, storage, sewage interception and discharge of rainwater on the road surface, the present invention realizes the goals of peak shaving and storage, lawn conservation and water ecological restoration, and has important reference significance for the construction of "sponge city".

A roller aerosol cooling method and a device thereof belong to the technical field of steel rolling process; the cooling medium is the compressed aerosol and the cooling effect is obvious after a roller is cooled with aerosol under the high temperature; the roller temperature does not exceed 50 DEG C after being cooled, therefore, the method and the device can substitute the conventional high-pressure water cooling mode. By adopting the process, high-pressure cooling water and high-pressure gas are respectively delivered to the place above the roller through a high-pressure cooling water pipe and a compressed gas pipe and the high-pressure gas in the compressed gas pipe is used for converting the high-pressure cooling water into mixed high-pressure aerosol at the entrance of a muzzle and the mixed high-pressure aerosol is sprayed out from the muzzle; the aerosol is sprayed on the roller in a fanning-shaped way for cooling (as shown). The fanning number and aerosol can be adjusted according to the factual situation. The invention can be used for various rollers in the metallurgy field and has excellent cooling effect on anomalous roller.

The invention provides a sponge city ecological municipal road, and belongs to the technical field of sponge cities. The sponge city ecological municipal road includes a sidewalk, permeable granite step bricks, an emergency permeable hole, a permeable concrete base layer, a permeable asphalt layer, a water diversion slope bearing layer, a water diversion slope surface, a bearing substrate, a watergathering channel, a channel side wall, a sand-gravel layer, a filtering layer, a geotechnical cloth filtering layer, a gravel filtering layer, an activated carbon filtering layer, a rainwater well,a drainage well cover, a water storage tank, an emergency water diversion pipe, a lawn, soil, a permeable sand layer, a water pumping pipe, a water pump, a road base layer, a municipal pipe network, an irrigation water pipe, an atomizer, a collecting pipe, a closed pipe, an excess preventing pipe, a channel bottom wall and kerb. The sponge city ecological municipal road has the advantages and effects that accumulated water on the road can be timely recycled to the underground for discharging and storing so as to ensure normal passing of the road in rainy days, the water quality is improved tothe maximum extent, and the sponge city ecological municipal road is of great significance to realize the goal of water ecological restoration.

The invention discloses a washing machine and a tub drying method thereof. The washing machine comprises a dehydration tub and an air supply device, wherein the dehydration tub is used for containing washings to be dehydrated, the end face of one axial side is open, the dehydration tub can rotate around the central axis of the dehydration tub, an air supply port of the air supply device faces the open end face of the dehydration tub and is used for heating airflow and blowing the heated airflow into the dehydration tub through an air supply outlet. According to the washing machine, the risk of dirt and bacterium remaining due to accumulated water in the tub can be effectively reduced, mildew is decreased, and the cleaning degree of the washing machine is improved. In addition, the air supply port of the air supply device faces the open end face of the dehydration tub, accordingly the air supplying efficiency can be effectively improved, the installing difficult of the air supply device can be reduced, the tub is comprehensively dried, and formation of the accumulated water is completely eradicated fundamentally to effectively avoid the water accumulation problem.

The invention relates to an introduced optical cable water-proof and anti-freezing device which comprises an optical cable, a nylon connection pipe, an outer sleeve steel pipe and a steel pipe framework. The optical cable is arranged inside the nylon connection pipe and the outer sleeve steel pipe. The outer sleeve steel pipe is fixed on the steel pipe framework. A part of the nylon connection pipe and a part of the outer sleeve steel pipe are in sleeved connection. A thermal plastic pipe is arranged at the position where an upper opening of the outer sleeve steel pipe is connected with the optical cable. According to the introduced optical cable water-proof and anti-freezing device, the difficult problem that water is accumulated when the optical cable is introduced into a pipeline is solved, the water-proof effect can meet the technical requirement, the potential hazards that the optical cable is frozen in winter due to the fact that rainwater is injected into the pipeline with the introduced optical cable for a long time are solved, the operational reliability of the optical cable is improved, and unimpeded access to information of a power grid is ensured. Meanwhile, the cost, brought by former repeated maintenance, of manpower, materials, vehicles and the like is saved, other larger losses caused by the interruption of the communication optical cable are avoided, and considerable economic benefits are brought to the safe operation of the power grid.

The invention relates to a composite constructed wetland system. The composite artificial wetland system comprises a horizontal subsurface organic filler constructed wetland unit and a vertical downward subsurface constructed wetland unit which are sequentially arranged in the direction of water current, wherein the horizontal subsurface organic filler constructed wetland unit comprises a drop shaft, a first gravel layer, a second gravel layer, an organic filler layer, a pervious concrete slab, a non-woven fabric layer, a quartz sand layer, aquatic plants, a water inlet, an effluent collectingwell, a water outlet and a ventilating mechanism; the organic filler layer consists of a honeycomb mechanism filled with a magnetic organic filler; a fixed plate is arranged at the bottom of the honeycomb mechanism; the vertical downward subsurface constructed wetland unit comprises a fourth gravel layer, a ceramsite layer, a third gravel layer and a planting layer which are sequentially arrangedfrom bottom to top. According to the composite constructed wetland system provided by the invention, the blockage problem of constructed wetland is effectively solved; in addition, high-load sewage can be effectively purified.

The invention discloses a mycorrhization seedling growing method of the cut root of Moringa Oleifera Lam. The method comprises the steps of seedbed preparation, seed selection and treatment, sand bedaccelerating germination, matrix preparation, bud seedling inoculating and transplanting, and seedling stage management. Mature and full seeds of Moringa Oleifera Lam are selected, and are subjected to sand-storage accelerating germination after being subjected to pest killing and disinfection, after bud seedlings come out, the cut root is inoculated with culture and is then transplanted to a prepared seedling growing container, and high-quality strong seedlings of Moringa Oleifera Lam are cultivated through management and cultivating. By means of the mycorrhization seedling growing method ofthe cut root of Moringa Oleifera Lam, through the procedures of seed treatment, sand-storage accelerating germination, container seedling growing and the like, and by dipping the root with a tailor-made mycorrhization agent before transplanting, the yield of nursery stocks is effectively increased, the quality of the nursery stocks is effectively improved, the disease and pest resistance of the nursery stocks is improved, and the survival rate of the nursery stocks is high, and reaches 95% or above; the root system of the nursery stocks is developed, the nursery stocks can be qualified for selling in advance, the seedlings can be qualified in advance, the seedling growing cost can be lowered, and the mycorrhization seedling growing method has high economic benefits, social benefits and ecological benefits.

The invention discloses a pressing-pushing installation method of a fabricated concrete prefabricated automobile box-type channel, and relates to the technical field of road and bridge engineering. The pressing-pushing installation method aims to solve the problems that adjacent fabricated box-type channel segments are not tightly connected in the prior art and are prone to causing slab staggering, disconnection and water seepage among the box-type channel segments. According to the technical key points, the pressing-pushing installation method comprises the steps that S1, site cleaning and surveying setting out are carried out; S2, a foundation pit is excavated; S3, a foundation pad is constructed; S4, box-type channel transportation and turnover are carried out; S5, leveling treatment iscarried out; S6, the segments are installed, that is, the box-type channel segments are hung and placed on a tetrafluoro slide plate, connecting openings of the two box-type channel segments are aligned during installation, and pressing-pushing and adjusting are carried out by two center hole jacks symmetrically arranged at the bottoms of the box-type channel segments to enable the central axis and side lines of the box-type channel segments to be aligned with the central axis and side lines which are released from the top surface of a channel foundation correspondingly; S7, tension and connection are carried out; S8, grouting is carried out; and S9, waterproof treatment is carried out so as to achieve the overall fabricate consistency of the whole automobile box-type channel.

The invention discloses a multifunctional intelligent transformer cabinet. The cabinet comprises a cabinet body. The top end of the cabinet body is fixedly connected with a top cover. A circle of strip-shaped vent holes are also formed in the side wall of the top cover. Fans are fixed on two sides of the inner wall of the top end of the top cover. A plurality of groups of electric heating wires are fixed at the lower part inside the cabinet body. A first temperature sensor is further mounted on the lower end part, close to the electric heating wires, of the inner wall of the cabinet body. A second temperature sensor is installed at the upper end, away from the electric heating wires, of the inner wall of the cabinet body. A first temperature controller and a corresponding time controller are further installed in the cabinet body. The side walls of the two ends of the cabinet body are each provided with a row of strip-shaped heat dissipation holes. Air guide plates are movably installedon the strip-shaped heat dissipation holes. The air guide plates can adjust the opening degrees of the strip-shaped heat dissipation holes. In extremely cold weather, the interior of the cabinet bodycan be rapidly and stably heated, so that the rapid and uniform heating effect in the cabinet body can be achieved within a short period of time. In hot weather, the cabinet body can be adjusted to be in different heat dissipation modes according to different temperature values in the cabinet body.

The invention provides an ecotypic water-permeable stratum structure and belongs to the technical field of water collecting and water taking. The problems that the water exchange circulation between the atmosphere and the soil cannot be realized and the ultra-wet or ultra-dry air is long-lasting in a city because the current top soil layer of the city is waterproof are solved. The ecotypic water-permeable stratum structure comprises a surface layer and a water-storing layer under the surface layer, wherein a water-permeable layer is arranged between the surface layer and the water-storing layer; the water-storing layer comprises a waterproof geotextile layer which is attached to the bottom of the water-permeable layer; a pool slag backfilling layer is attached to the bottom of the waterproof geotextile layer; an underground soil layer is arranged under the pool slag backfilling layer; a water storage pond is arranged in the position of the underground soil layer; and the water storage pond is communicated with the water-permeable layer through a natural falling or draining pipe. The ecotypic water-permeable stratum structure has an excellent permeating function, a humidity-adjusting function, a cooling function, and the like, so that the two problems of urban water accumulation and tropical island effect are solved.

The invention relates to a self-service car washer. The self-service car washer comprises a machine body device used for supporting, an intelligent water control device used for conducting car washing, and a control device used for switching of car washing functions, wherein the machine body device comprises a case body, a supporting frame and a bearing cross beam are arranged inside the case body, a one-way openable door is further arranged on the case body, a panel window is arranged on the one-way openable door, the intelligent water control device comprises a filter, a water tank and a washing fluid tank, the filter, the water tank and the washing fluid tank are connected through guide pipes, a pressure sensor A and a pressure sensor B are arranged on the bottom of the water tank and on the bottom of the washing fluid tank and are connected through a control valve A and a control valve B, the control device comprises a panel body, a water outlet control key, a bubble outlet control key, a magnetic card sensing area and a coin slot are arranged on the panel body, and then diversified consumption of customers is facilitated. The self-service car washer has the advantages of being simple in structure, convenient to use and complete in function.

The invention discloses a technology for transplanting spring tea seedlings in a tea area in the north of the Yangtze River, belonging to the technical field of tea culture. The technology comprises the following steps of: digging a transplanting ridge; shearing a seedling; field planting; irrigating for rooting; spanning a small plastic greenhouse; covering an agricultural film and a sunshading net; and removing the agricultural film and the sunshading net. The technology is characterized by comprising the following steps of: carrying out field planting on a tea seedling in a transplanting ridge, and then, ridging and hilling; spreading wet wheat bran, then covering the agricultural film and the sunshading net; and removing the agricultural film and the sunshading net in good time. Thus, the aims of heat insulation and water retention are achieved, seedling sunburn caused by high temperature is prevented, and the problem of tea seedling root rottenness caused by soil water accumulation in rainy summer is also solved. Compared with the prior art, the technology has the characteristics of no defoliation, rapidness in rooting and high survival rate after the tea seedling is transplanted; the survival rate of the annual tea seedling is 30% higher than that of the tea seedling transplanted by using the prior art; and the technology can be widely applied to the transplanting of spring tea seedlings in a tea area in the north of the Yangtze River, such as Shandong and Shanxi.

The invention discloses a containerized-type energy-saving low-noise water-cooling centrifugal pump, which comprises a pump body and a motor, wherein the motor is arranged inside the pump body and is used for supplying power; the pump body comprises an outer cylinder, an upper bearing, a lower bearing, a motor stator and rotor component, an upper cavity, a lower cavity, a cooling cavity and an impeller, wherein the upper bearing is connected with the lower bearing, the motor stator and rotor component is arranged in the outer cylinder, the impeller is arranged at the bottom of the pump, the upper bearing and the lower bearing are positioned at the middle part in the pump body and coaxially arranged, and an inner connecting pipe is arranged in the cooling cavity; the upper cavity is communicated with the cooling cavity through a hole at one side of the upper cavity, a hole at the other side of the upper cavity is communicated with the upper end of the inner connecting pipe, the lower end of the inner connecting pipe is connected with a return pipe, the return pipe is communicated with a pump inlet, and the pump inlet is communicated to a cavity body where the impeller is arranged; and the lower cavity is communicated with the cooling cavity through a hole at the right side of the lower cavity. By adopting a brand new water circulating cooling system and removing a previous fan structure, the containerized-type energy-saving low-noise water-cooling centrifugal pump is energy-saving and environment-friendly; the motor noise is greatly reduced; and because the pump body is coaxial with the motor, the vibration is reduced.

The invention discloses a municipal road drainage structure, and belongs to the field of municipal construction. According to key points of the technical scheme, the municipal road drainage structurecomprises a road surface base layer and drainage pipelines; the two sides of the road surface base layer are provided with drainage tanks communicating with the drainage pipelines; rainwater gratingsare arranged at openings of the upper ends of the drainage tanks; clamping grooves allowing the rainwater gratings to be clamped are formed in the two sides of the openings of the upper ends of the drainage tanks; the rainwater gratings comprise grating bodies and water passing tanks, rotating shafts are arranged below the grating bodies, a driving motor in transmission connection with the rotating shafts is arranged below the road surface base layer, and a plurality of pushing rods are arranged on the rotating shaft at intervals; and triggering plates are arranged in the clamping grooves, connected with the grating bodies through springs, and provided with micro-switches electrically connected with the driving motor. It can be guaranteed that rainwater smoothly flows away, and the problemof road surface water accumulation is solved.

Disclosed is an electric ecological pavement with the functions of water lifting, lawn conservation rainwater collection and sewage interception. The pavement sequentially comprises a road, a curb, a sidewalk, a water regulation and storage pool and lawn from left to right; the side, close to the sidewalk, of the road is provided with the rectangular hollow groove-shaped curb with the functions of water purification and water filtration; the upper portion, close to one side of the road, of the rectangular hollow groove-shaped curb is provided with a road rainwater inlet which is communicated with a rainwater storage layer in the cavity of the upper portion of the curb; the lower portion of the rainwater storage layer in the cavity of the upper portion of the curb is provided with a water purification layer; a double-layer temporary sidewalk rainwater collection and storage layer is arranged below the sidewalk and used for collecting rainwater. The ecological pavement has the advantages that the functions of rainwater collection, sewage interception, filtration, water purification and irrigation are integrated, environment-friendly and sustainable use of energy is further achieved, a power generation windmill and a solar panel are utilized to store wind energy and solar cell energy, and the wind energy and the solar energy are converted into electric energy to be stored for providing green energy for the whole device.

The invention discloses a peer drainage backfill layer seeper eliminating device, including a shell and an inner tube, wherein the inner tube is buried in the shell under the backfill layer underside in the floor plate, and a drainage cavity is formed between the shell and the inner tube. At the end lap of the drainage cavity, the inner tube and the shell close to make the end lap of the drainage cavity sealed. A drainage hole is provided on the inner tube wall near the end lap of the drainage cavity, while the top end of the drainage cavity is opened to form an inlet. The upper end of the inner tube has an upper interface for connecting the drainage tie-in or the main pipe, and the lower end of the shell or the tube has an lower interface for connecting the drainage main pipe or the drainage fittings. In order to advance the drainage effect, a drainpipe is laid to communicate with the drainage cavity near the backfill layer underside. The invention adds a simple component on the main drain to solve the seeper problem of the backfill layer in the peer drainage system, which has simple structure, convenient installation, compact connecting conformation between the main sewer and the joint, low cost, without making a water proof layer on the backfill layer.

The present application relates to the technical field of fuel cells, and discloses a bipolar plate and a fuel cell, the bipolar plate comprises: a bipolar plate body, one side of the bipolar plate body is provided with a plurality of flow channels arranged along a first direction, a protrusion portion is arranged between every two adjacent flow channels to form a ridge portion, and the extension direction of the ridge portion is perpendicular to the first direction; a first groove is formed in the surface of one side, deviating from the bottom of the runner, of at least one part of the ridge part, at least one end of the first groove communicates with the flow channel adjacent to the ridge part, and the extending direction of the first groove is not perpendicular to the first direction; a second groove is formed in the surface of one side, deviating from the bottom of the flow channel, of at least one part of the multiple ridges provided with the first grooves, the extending direction of the second groove is consistent with the extending direction of the ridges, and the second groove is communicated with at least one first groove. The bipolar plate disclosed by the invention can be used for solving the problem of water accumulation under the gas diffusion layer ridge, so that the effect of improving the water transmission process under the gas diffusion layer ridge is achieved.

The invention discloses a steaming and baking box control method and device, and a steaming and baking box. The steaming and baking box control method comprises the following steps that the residual cooking time reaches a first time threshold, and thus a heating device in a cavity of the steaming and baking box is started at first power; the temperature of the cavity is monitored through a temperature sensor in the cavity of the steaming and baking box, the temperature of the cavity is greater than a first temperature threshold, and thus the heating device is stopped; the temperature of the cavity is less than a second temperature threshold, and thus the heating device is started; and the residual cooking time reaches a second time threshold, and thus the heating device is started at second power. The problem of water accumulation after cooking of the steaming and baking box is solved, the situation that the cavity needs to be cleared by a user after each time of cooking is avoided, and the using experience of the user is greatly improved; and the temperature is maintained to be 100 DEG C during preheating of a lower heating tube, the temperature is increased only in a short time before cooking is about to finish, and the cooking effect and the taste of cooked food are not affected.

The invention discloses a system for collecting and utilizing road surface rainwater. The system comprises water pump adapters, a sidewalk for the blind, a sidewalk, a cover plate of the sidewalk, efficient water draining curbstones and a sewer, wherein the sidewalk and the sidewalk for the blind cover the sewer, the cover plate of the sidewalk and the sewer penetrate through the whole road length, supporting wire frames are vertically mounted on the sewer along the road length, primary purifying pools are arranged under the sewer, water storing pools are arranged under the primary purifying pools, two water intakes are formed in the water pump adapters, the two water intakes are respectively connected with the primary purifying pools and the water storing pools through communicating pipes, floating ball devices are mounted in the primary purifying pools and the water storing pools, the primary purifying pools and the water storing pools, which are in upper-lower arrangement are connected vertically, multi-layer filtering layers are arranged at the vertical connecting positions and are used for purifying water. The system disclosed by the invention has the advantages of being simple in structure, multiple in functions, high in utilizing rate of rainwater, and obvious in water saving effect, and can be widely applied to road rainwater collection.

The invention belongs to the technical control fields of water collection and draining and sewage interception and purification treatment of rainwater and particularly relates to an ecological pavement with a water storage module and sewage-interception and purification treatment functions. The pavement structurally comprises a pavement body, a curb, a sidewalk, a regulation-storage water storage pond and a lawn, wherein the rectangular empty slot type curb with water purification and filtration functions is arranged on one side, close to the sidewalk, of the pavement body, a curb rainwater inlet is formed in one side, close to the pavement body, of the upper part of the rectangular empty slot type curb, and a curb upper part cavity rainwater storage layer, a sand-stone filtering layer, a purifying medium layer, a geotechnical cloth layer and a rainwater collection module are sequentially arranged in the rectangular empty slot type curb from top to bottom; a water-permeable asphalt pavement is paved under the sidewalk, and a plurality of water storage modules are arranged under the water-permeable asphalt pavement. According to the ecological pavement, the automatic control of water collection, sewage interception, filtration, water purification, peak clipping regulation and storage, lawn self-restraint is realized.

The invention belongs to the technical field of constructional engineering waterproofing, and discloses a secondary drainage waterproofing system for a subsided toilet. The system comprises a caissonand a vertical drainage pipe, wherein a caisson drain pipe embedded into the caisson is connected with the side wall of the vertical drainage pipe; caisson waterproof layers are arranged on the top surface of a bottom plate and the inner side wall surface of the caisson; a slope making layer is arranged on the top surface of the caisson waterproof layer at the bottom and slopes towards the caissondrain pipe; a filling layer is backfilled between the slope making layer and a ground cushion layer; a protecting layer is arranged outside the caisson waterproof layer arranged on the side surface;the caisson drain pipe is covered with a drain board located on the top surface of the slope making layer, and the drain board is fixed by a fixing lead wire pre-embedded in the slope making layer; aseparation net, a water filtering isolation belt and a fixing net are arranged on the peripheral side of the drain board in sequence. According to the secondary drainage waterproofing system for the subsided toilet, the problems of ponding and leakage of the caisson of the subsided toilet are solved fundamentally, water entering the caisson is immediately and smoothly drained by combination of drainage and plugging while waterproofing is strengthened; the system does not occupy indoor space and is simple in structure and convenient to construct, and materials are easily available.