397results about How to "Speed up drainage" patented technology

The invention mainly discloses a water pump for a sewerage system. According to the technical scheme, the water pump comprises a pump body, a motor, an impeller, a water inlet and a water outlet. The pump body comprises a sewage discharging cavity, a driving cavity and an oil adding cavity which are mutually isolated; a filtering net and at least two water flow channels are disposed between the water inlet and the sewage discharging cavity; the filtering net is connected with cleaning devices and an impurity collecting device; water inlet valves and first water flow sensors are disposed in the water flow channels; a second water flow sensor is disposed at the water outlet; a first flow guide plate and a second flow guide plate are disposed on the left side and the right side of the sewage discharging cavity correspondingly; and a smashing wheel is connected to a rotary shaft of the motor. By means of the water pump for the sewerage system, the risk of water leakage is reduced; the service life of the water pump is prolonged; impurities in sewage are reduced through the filtering net and the smashing wheel, and the sewage discharging cavity and the impeller are prevented from being blocked; the service life of the motor is prolonged; and no-water protection is performed through the first water flow sensors and the second water flow sensor, and the comprehensive property of the water pump is improved.

The invention discloses a deep strengthening method of dewatering reinforcement combined dynamic consolidation, which comprises the following steps: V1ing: a vertical drainage body is arranged in a strengthened foundation. V2ing, soft soil foundation is done with the dewatering reinforcement. V3ing, after a deep soil body below 8 meter of the ground surface of the strengthened foundation is acted by the dewatering reinforcement, the consolidation degree is above to 75 percent, and then the consolidation construction is done. The invention combines a dewatering reinforcement method and a dynamic consolidation method to be applied to strengthen the deep soil body of the soft soil foundation, particularly the permeability coefficient is not less than 10-6cm / s, and the water content of the soil body before the dynamic consolidation is not higher than a strengthened soft soil foundation which is 20 percent of the best water content. The foundation reinforcement effect is obvious, the construction period is capable of being reduced 1 / 3-2 / 3 as a whole, the construction cost is greatly reduced, the cost is saved (compared with a vacuum preloading method, the treatment cost in each square meter is reduced by 30-50 percent ), because the operating intensity is small, the demand for equipment is not high, and the deep strengthening method is suitable for popularization and application.

The invention belongs to the field of sponge city construction, and particularly relates to a cooling type water permeable brick for a sponge city. The cooling type water permeable brick for the sponge city comprises a brick body; the interior of the brick body is provided with a cavity; a water permeable hole is formed in the lower surface of the brick body; the inside wall of the brick body is in sliding connection with a lifting plate; the density of the lifting plate is less than that of water; a through hole is formed in the lifting plate; the inner bottom surface of the brick body is rotatably connected with a water seepage plate; the water seepage plate is internall provided with a water seepage hole which corresponds to the position of the water permeable hole and communicates withthe water permeable hole; the side wall of the water seepage plate is fixedly with the inside wall of the brick body through a coil spring; the lower surface of the lifting plate is fixedly connectedwith two permanent magnetic blocks. According to the cooling type water permeable brick for the sponge city, the water storage and water seepage states can be regulated automatically according to rainfall capacity; the utilization rate of rainwater is improved; a good sponge effect is achieved; the evaporating speed of the rainwater in the brick body can be regulated according to the temperatureof a city; a good cooling effect is achieved; and moreover, the cooling speed is higher for the road surface with large population flow in the city.

The invention relates to a high-pressure air supply valve with a pressure difference control function and an air scavenging method. According to the method, the pressure difference between a water ballast space and outside seawater can be kept stable during air scavenging. The high-pressure air supply valve is composed of a main valve body, an auxiliary valve body and a control valve body, wherein the main valve body is the main channel for high-pressure air supply, high-pressure air enters the water ballast space through the main valve body, the opening degree of a valve element of the main valve body is automatically adjusted through the pressure difference between an upper cavity of the valve element and a lower cavity of the valve element, and then the adjustment of supplied airflow is achieved; the auxiliary valve body is used for controlling the opening and closing of the main valve body and has both a pneumatic control function and a manual control function; the control valve body is used for sensing the pressure difference between the interior of the water ballast space and the exterior of the water ballast space, controlling the opening degree of the valve element of the main valve body, and controlling the opening degree of a valve element of the control valve body according to the pressure difference to enable the flow of compressed air in the upper cavity of the valve element of the main valve body to be changed, then the change of pressure of the upper cavity of the valve element of the main valve body is caused, and finally the opening position of the valve element of the main valve body is controlled. According to the high-pressure air supply valve, a fully-mechanical structure is adopted, no electrical element is used, remote operation can be achieved through compressed air, other power sources are not needed, and reliability is high.

The invention discloses a washing machine inner barrel, comprising a barrel body, a balance ring mounted at the upper part of the barrel body and a barrel bottom mounted at the lower part of the barrel body, the barrel body is provided with an annular throat structure, of which the inner diameter is less than that of the barrel body, below the balance ring, multiple dehydration holes are distributed in the throat structure and / or between the throat structure and the balance ring, the lower middle part of the barrel body is of a sealing water containing structure. The inner wall, below the throat structure, of the barrel body is provided with a breakaway type filtering cover, the breakaway type filtering cover comprises a main body and a secondary block, the secondary block is arranged above the main body and below the throat structure, and is located at the upper part of the inner barrel, and a water passing gap for allowing water flow to pass through along the rotation direction of the inner barrel is arranged between the secondary block and the main body. According to the washing machine inner barrel provided by the invention, when a washing machine is used for washing clothes, washing water can be effectively prevented from overflowing from the dehydration holes by rising along the barrel wall, and the inner barrel has the characteristics of simple structure and good water saving effect.

The invention mainly discloses an overpass rainwater recovery system and its installation method. Its technical proposal includes a bridge deck and a bridge pier. There is a first drainage pipe connected to the filter, the filter is connected to the underground water tank through the clean water pipe, the top of the pier is provided with a first collection bucket, and the bottom of the pier is provided with a second collection bucket connected with the first collection bucket, The second collecting bucket is connected with the filter through the downpipe. The invention has simple structure and convenient installation, can quickly collect and store rainwater generated during rainfall or road sprinkling, improve drainage efficiency, filter and purify rainwater before storage, improve water resource utilization efficiency, and solve water pollution problems. The collecting bucket and the second collecting bucket prevent rainwater from entering the inside of the bridge pier, effectively preventing rainwater from corroding the bridge pier or affecting the appearance, and are easy to apply and promote.

The invention relates to the technical field of flood diversion devices, and discloses an urban heavy rain waterlogging prevention flood diversion device. The urban heavy rain waterlogging preventionflood diversion device comprises a flood diversion box with a rectangular section, wherein the top of the flood diversion box fixedly communicates with a water inlet pipe; a filter screen is connectedto the inner pipe wall, close to the top, of the water inlet pipe through a dismounting mechanism; a first water outlet pipe fixedly communicates with the vertical outer box wall of one side, close to the box bottom, of the flood diversion box; a second water outlet pipe fixedly communicates with the vertical outer box wall, far away from the first water outlet pipe, of the flood diversion box; avalve plate is connected to the inner box wall, corresponding to the second water outlet pipe, of the flood diversion box through an adjusting mechanism; the axis of the valve plate coincides with the second water outlet pipe; the adjusting mechanism comprises a T-shaped sliding groove; the T-shaped sliding groove is formed in the inner box wall of the flood diversion box; and the T-shaped sliding groove is positioned right above the second water outlet pipe. The urban heavy rain waterlogging prevention flood diversion equipment has the advantages that the drainage speed is increased when waterlogging occurs, the pipeline cleaning cost is low, the filter screen is not prone to blockage when waterlogging occurs, and the filter screen is convenient to install and disassemble.

The invention relates to a layer-stepping type multi-filter disc filter machine which comprises a cylindrical pressure container, wherein the container is provided with a feeding pipe, a rotating main shaft is arranged at the central axis of the container, and the rotating main shaft passes through the top of the container to be mutually connected with the output shaft of a gear motor; the top of the container is further fixedly provided with a displacement mechanism, and the displacement mechanism drives the rotating main shaft to move up and down in the container; at least two groups of filter devices are uniformly arranged along the vertical direction between the inner wall of the container and the rotating main shaft, any group of filter device comprises a filter disc and a scraper which are horizontally arranged, and the scraper of any group of filter device is arranged above the corresponding filter disc; a liquid discharge passage and a discharge passage which are used for communication and are communicated with the filter device are arranged in the container. The layer-stepping type multi-filter disc filter machine provided by the invention is compact in structure, the operation is reliable and stable, the filter effect is greatly improved, and the filtering effect is good.

The invention discloses a plug-in double-sealing floor drain core, comprising an upper cover, a floor drain core upper body and a floor drain core lower body. The bottom of the floor drain core upperbody is provided with a water outlet; the upper cover includes a water-holding panel, a fixing ring, a filter barrel and a circular overflow rim; the water-holding panel is fixed in the fixing ring through grid rods; gaps between the grid rods form water inlets; the upper end of the filter barrel is fixed to the bottom of the water-holding panel; the upper end of the circular overflow rim is fixedly connected with the filter barrel; the lower end of the circular overflow rim is in contact with the floor drain core upper body; the inner side of the circular overflow rim encloses an inflow passage; a gap among the circular overflow rim, the filter barrel and the floor drain core upper body forms an inflow cavity; the floor drain core lower body is fixedly connected with the floor drain coreupper body; a water guide tube is arranged in the floor drain core lower body; a maglev sealing structure is arranged in the water guide tube; the outer side of the floor drain core lower body is provided with a drain port; a gap between the floor drain core lower body and the water guide tube forms a water-sealed cavity. The plug-in double-sealing floor drain core is convenient to disassemble, and has rarity of blocking, high draining speed, good universality, good sealing effect and good deodorizing effect.

The invention relates to a water drainage structure of a municipal road and belongs to the technical field of municipal road water drainage. The water drainage structure of the municipal road comprises a road main body and a water drainage pipe arranged in the road main body; the road main body comprises a lane and a sidewalk; the lane is arranged higher than the lane; a drainage well is arrangedon one side, close to the sidewalk, of the lane; a rainwater grate is arranged at an opening of the drainage well; a collection well is formed in the sidewalk in the vertical direction; the drainage well communicates with the collection well through a first connecting pipe; the collection well communicates with the water drainage pipe through a second connecting pipe; the height of the second connecting pipe is larger than the height of the first connecting pipe; and a filter screen is arranged at the connecting part of the second connecting pipe and the collection well. When precipitation amount is higher, direct surface runoff takes partial surface garbage and leaves to penetrate through the rainwater grate to enter the drainage well and then enter the collection well; the rainwater enters the water drainage pipe through the filter screen to be drained; and the garbage and the leaves are blocked in the collection well through the filter screen and float on the liquid surface to prevent the water drainage pipe from being blocked.

The invention discloses a well lid for municipal engineering. The well lid for municipal engineering comprises water inlets, water outlets, a cross-shaped rod, a lid body and a well lid body, wherein the cross-shaped rod is mounted at the position of a slot; a damping spring is mounted on the upper surface of the cross-shaped rod; a booster fan is mounted in the middle of the bottom end of the cross-shaped rod through a rotating shaft; the inside of the lid body is provided with the well lid body through a hinge; water drainage channels are uniformly formed in the edge of the lid body; the top ends of the water drainage channels extend to the upper surface of the lid body; each water inlet is formed in the top end of the corresponding water drainage channel; the bottom ends of the water drainage channels extend to the bottom end of the lid body; each water outlet is formed in the bottom end of the corresponding water drainage channel; one side of each water drainage channel is connected with a flow dividing tube; each flow dividing tube extends to the edge of the inside of the lid body; and fixing bolt holes are uniformly formed in the edge of the lid body. By the flow dividing tubes, the water drainage efficiency is improved; by the booster fan, air circulation is accelerated; and by the damping spring, the impact force of traveling vehicles to the well lid is relieved.

The invention discloses an anti-blocking self-cleaning floor drain drainage device. The device comprises a floor drain opening and a drainage groove which are formed in the ground, the upper end of the drainage groove communicates with the floor drain opening, a floor drain cover is arranged at the floor drain opening, a sewer pipe is laid in the groove wall of the bottom of the drainage groove, the sewer pipe communicates with the drainage groove, the upper end of the drainage groove is slidably connected with an inclined first filter screen, the first filter screen inclines towards one sideof the sewer pipe, and the lower end of the drainage groove is slidably connected with a piston plate. The device has the advantages that when the sewage amount is large, the first filter screen bearslarge water pressure, the first filter screen and a sliding rod obviously slide downwards, so that a rotating plate rotates to make an electrifying layer in contact with two conductive plates, a circuit where a first electric valve plate is located is electrified, the drainage groove communicates with an auxiliary pipe, part of sewage is discharged from the sewer pipe through the auxiliary pipe,flow dividing and drainage are achieved, and therefore the drainage speed of a floor drain is increased.

The invention relates to a prefabricated drainage bamboo pile and a preparation method thereof, and belongs to the technical field of construction. The prefabricated drainage bamboo pile includes interconnected pile caps, prefabricated reinforced concrete pile cores, pile tips, pile tip metal protection heads, waterproofing layers, prefabricated permeable concrete pipes, drainage pipes, prefabricated metal filters, and geotextile filter layers; the prefabricated reinforced concrete pile cores are cylindrical and connected with the pile tips as a unitary member, each pile tip is composed of a pile tip cylindrical section and a pile tip conical section, the surface of the pile tip conical section is provided with a pile tip metal protection head, the prefabricated permeable concrete pipes are hollow cylindrical shapes, the surface of the prefabricated permeable concrete pipes are provided with annular bamboo segments at equal intervals along the vertical direction of the pile body, and aprefabricated metal filter is arranged between the two annular bamboo segments; a metal filter is semicircular and annular, a filter hole is formed in the surface of the metal filter, and a geotextile filter layer is arranged on the outer surface of the metal filter. The prefabricated drainage bamboo pile has the advantages of high assembly degree, convenient assembly, a bearing function of the pile body is combined with a drainage function, the damage of the pile tip is avoided, the drainage of the pile body is easy to block, and the drainage pipe is single.

The invention discloses a three-dimensional comprehensive planting and breeding method for a rice field, and paddy rice, river snails and loaches are adopted for three-dimensional comprehensive planting and breeding. The three-dimensional comprehensive planting and breeding method comprises the steps of preparing and drying the field, performing disinfection and fertilizer application, cultivating the paddy rice, releasing young river snails, applying fertilizer, releasing young loaches, and harvesting. Farmyard manure is used as the fertilizer, the feed is prepared by mixing bean powder, wheat bran, fish meal, plant ash and trace elements, an annular trench is dug at the ridge periphery of the rice field, the area of the rice field is large, and +-shaped trenches or #-shaped trenches connected with the annular trench are additionally dug. The paddy rice, the river snails and the loaches are adopted for three-dimensional comprehensive planting and breeding, production resources are fully utilized, the unit area economic benefit of the rice field is increased, environment pollution and cost input of the fertilizer, pesticides and herbicides are reduced, and the economic benefit is increased.

The invention discloses an integral air energy water heater and a draining structure thereof. The draining structure comprises a chassis, a water pan and a draining joint, wherein a first draining hole and a second draining hole are formed in the chassis; the second draining hole is positioned below an evaporator of the water heater; the water pan is arranged below the chassis; a water storage tank is formed in the water pan; a first draining opening is formed in the bottom of the water storage tank and is communicated with a water inlet of the draining joint; a flume is formed in the water pan; an opening of the flume is opposite to the second draining hole; a second draining opening is formed in the bottom of the flume and is communicated with the water inlet of the draining joint. Due to the adoption of the structure, the draining structure disclosed by the invention forms a second-stage draining structure; external rain water of a unit and condensate water left during working of the evaporator are drained by the second-stage draining structure, so that the draining speed of the unit is improved, the draining is smoother, and the condition of icing caused by the drainage of the unit under the low-temperature environment is improved.

The invention relates to the technical field of environment protection, and discloses a riverway ecological embankment and a construction method thereof. The riverway ecological embankment comprises atreatment area, a drainage assembly and a transition area. The treatment area comprises a first slope, a groove and a first barricade, all of which are sequentially arranged along a riverway side slope. A first containing area is formed among the first slope, the groove and the first barricade. A first anti-seepage layer, a first adsorption filter layer, a first water-permeable layer and an antiskid layer are sequentially laid at the bottom of the first containing area from bottom to top. One end of the drainage assembly is located in the first adsorption filter layer, and the other end of the drainage assembly is located in the first containing area. A second adsorption filter layer and a second water-permeable layer are sequentially laid on the side, close to the first containing area,of the first barricade. The first containing area is filled with a bottom mud layer. The riverway ecological embankment has the beneficial effects that dredging bottom mud is used for riverway embankment materials after being treated on the spot and meanwhile serves as a plant and microorganism growth matrix, and resource utilization of the dredging bottom mud is achieved.

The invention discloses a magnetic suction through combined floor drain comprising a floor drain body and a seal cover which is arranged at the lower outlet of the floor drain body, is provided with a guide rod and is capable of moving up and down; an installation column is arranged in the middle of the floor drain body through a plurality of connecting strips; an installation hole is arranged in the installation column; at least one outer magnetic strip is arranged on the wall of the installation hole, and all the outer magnetic strips are distributed in a circumference relative to the center of the installation center; the tail end of the guide rod of the seal cover extends into the installation hole; at least one inner magnetic strip is arranged on the tail end of the guide rod; all the inner magnetic strips are pushed upwards by the outer magnetic strips and have the tendency of moving upwards, so that the seal cover on the guide rod seals the lower outlet of the floor drain body. The magnetic suction through combined floor drain has the characteristics that the sealing performance is good, the draining speed is high, and sludge and other impurities are not easily deposited, and can effectively prevent the seal cover from resetting and losing effect.

The invention relates to a spongy urban siphoning and water-draining roof which comprises a gutter. An overflow port is formed in the side wall of the gutter, the gutter is provided with an overflow pipe, a plurality of rainwater siphoning hoppers are installed in the gutter and are connected with a pipeline with a draining port, a second one-way valve and a branch pipe are arranged on the pipeline, the branch pipe is located above the second one-way valve, a first one-way valve and a negative pressure device are installed on the branch pipe, and the negative pressure device is located at the end of the branch pipe. The negative pressure produced by wind energy and a siphoning and water-draining structure are integrated, a pressure different between the upper and lower water inlet-outlet ends of the pipeline is further increased, accordingly the water draining speed is improved, the water draining and water proofing capability is improved, and the spongy urban siphoning and water-draining roof is simple in structure, low in device cost, green, free of pollution, clean, free of energy consumption and convenient to use and convenient.

The invention relates to a novel plastic component and a field irrigation and drainage integrated plastic channel thereof. The novel plastic component is structurally characterized in that a channel wall of the novel plastic component is divided into an inner channel wall, an outer channel wall and a channel wing, the inner channel wall is an irrigation water flow passage, and the outer channel wall and the channel wing are in close fit with a farmland ditch; a connection groove is divided into a head-end connection groove and a tail-end connection groove, the head-end connection groove is positioned at the head end of the plastic channel, and the tail-end connection groove is positioned at the tail end of the plastic channel. Plastic which is long in service life and recyclable is adoptedto integrate a field irrigation channel and a drainage ditch to achieve the objective of conserving cultivated land. Compared with conventional irrigation channels and drainage ditches, cultivated land occupied by the drainage ditch is reduced greatly, and irrigation water utilization coefficient is improved. The novel plastic component is simple in structure and convenient and quick in transportation; combining is realized through a connection device, so that construction procedures are simplified, and construction efficiency is improved greatly; by additionally arranging a cover plate, irrigation water evaporation can be prevented while earthing planting can be realized, and requirements of ecological agriculture are met.

The invention discloses a method for extracting high quality protein form milk or whey water, which adopts the stirring tank with cationic ion-exchange resin to adsorb, desorb and separately extracts the lactoferrin, oxidative enzyme protein and the mixer. It uses film separating technology to do separately condensation and highly purity. The stirring tank can adjust the stirring rotating speed at 20-100rpm; the tank inside wall has swirl-adding flag; the bottom of the tank has resin bed with filter plate; the fast guiding suction tube is positioned on the resin layer upper 8-12cm of the resin bed.

The invention relates to a harbor construction sea reclaimed material utilizing silt, which is prepared by mixing gangue sand, the silt and cement. Water content of the silt is 60%-100%, and the weight ratio of the silt, the gangue sand and the cement is 1: 3-5: 0.04-0.06. A preparation method of the harbor construction sea reclaimed material utilizing silt is further disclosed. The material and the method achieve waste object utilization of the gangue sand and the silt. The material is high in strength, low in construction cost and capable of achieving quick solidification of silt and saving a large amount of natural resources. The material can be applied to projects such as sand quilt blowing filling, filtering guide layers, sand cushion layers and land area backfilling.

The invention discloses a deep decompression anatonosis type vacuum preloading foundation treatment method, which comprises the following steps of: a, setting an in-soil plastic drainage plate, connecting the in-soil plastic drainage plate onto airtight sealing water pipes through seal joints, and connecting each airtight sealing water pipe onto an airtight sealing main pipe so as to form an in-soil plastic drainage plate vacuum system; b, setting a material injecting pipe on a position far away from the in-soil plastic drainage plate at a certain distance, connecting the material injection pipe with material injection branch pipes, connecting the material injection branch pipes with a material injection main pipe, and connecting the material injection main pipe with a material feeding device; and c, adopting the material feeding device to feed dehydrating agents into the material injection pipe, and pumping the plastic drainage plate. The deep decompression anatonosis type vacuum preloading foundation treatment method provided by the invention has higher drainage efficiency and larger water discharge rate.

The invention discloses a municipal engineering drainage pipe crossing device, which is mainly composed of a drainage board, and the drainage board is uniformly provided with drain holes penetrating up and down, and the sewage is discharged down by using the drain holes; the drainage board There are slots on both sides of the lower surface, and the slots are horizontally oriented forward and backward, and the two ports of the slots communicate with the outside of the drainage plate; in the present invention, when the surface of the filter screen has accumulated too much residue and affects the drainage, the fixing ring Take it off, and at the same time lift up to adjust the pull rope, then one side of the filter can be lifted to form a structure with one end high and one end low, and the residue accumulated on the surface of the filter can be partly shaken by the operator under the action of gravity. The residue shakes off into the slag collecting net bag, which can reduce the amount of residue attached to the surface of the filter screen, thereby improving the overall drainage speed, and this method helps to increase the service life of the filter screen.

The invention discloses a flood flow-increasing drainage concrete manhole cover, the structure includes: a flood aid and drainage device, a water inlet, a support bar and a fixing frame, wherein the flood aid and drainage device comprises a flushing hole, a manhole cover main body, a compression spring, a deflector, a supporting float, a micro force piston, water collection holes, a buoyancy drainage tanks, a push rod, a buoyancy deflector and a clamping block. A slight force piston is nested in that flushing hole, the inner surface of the well cover main body is in contact with the outer surface of the supporting floating plate. The beneficial effects are: in case of heavy rain or sustained rainfall in the city, under the action of the flushing hole and the water collecting hole, when theinternal water level rises, the supporting floating plate floats upward, so that people do not step into the well by mistake, and under the action of the diversion platform, the water generates eddycurrent state, finally forms siphon effect, improves the drainage speed, avoids the flood caused by heavy rain in the city, and causes the phenomenon of slow drainage after the water accumulates in the city.

The invention discloses a ureteroscope, comprising at least two parts of lenses and a lens body, wherein each part of the lenses are connected in sequence; the tail end of the rear part lens is connected with the lens body; communicated tube cavities are arranged in each part of the lenses and the lens body; the external wall of the front part lens is provided with a groove; a tube wall of the rear part lens is provided with a drainage channel; and the groove and the drainage channel are communicated with each other. By additionally arranged a water drainage channel, the invention can accelerate the water drainage speed during an operation, forms continuous water cycle, increases the water drainage amount during the operation on the premise of not influencing the execution in the operation, thus not only can keeping clear view during the operation process and improving operation efficiency, but also reducing water pressure in a kidney and an ureter, preventing occurrence of hyperpyrexia bacteremia after the operation and avoiding rise of the water pressure in a bladder.

The invention relates to the technical field of urban construction, in particular to a road-dependent rainwater purification and storage ecological utilization system in northern cities, comprising aroad central drainage green plant unit, a roadside drainage unit, a roadside surface green plant purification unit, an underground seepage storage unit and rainwater wetland gardens, wherein due to the road central drainage green plant unit, the surface water permeable area of the pavement is increased; the drainage ditch can effectively reduce the garbage blocking the pavement drainage outlet, accelerate the drainage velocity, and prevent the snow water containing snow melting agent from flowing into the green belt in winter; due to the sidewalk drain ditch, excessive rainwater on the pavement is introduced into the roadside surface green plant purification unit to increase the infiltration area and time of the rainwater; the underground seepage storage unit is set up to store rainwater for later use; due to the rainwater wetland gardens, the rainwater infiltration area and rainwater retention time can be enlarged in rainy season; and the rainwater wetland gardens and the roadside surface green plant purification unit are connected in ditches, thus greatly reducing the amount and area of road water.

The invention provides a liquid discharging structure and a closed container with the same. The liquid discharging structure comprises a liquid outlet arranged on the closed container, and a partition board arranged inside the liquid outlet to divide the liquid outlet into an air inlet channel and a liquid discharging channel; the part, located inside an inner cavity of the closed cavity, of the partition board is fixedly provided with a baffle used for preventing liquid from directly impacting on the air inlet channel. During using, when the closed container with the liquid discharging structure pours liquid outwards, liquid flows outwards from the liquid discharging channel, external airflow stably and continuously flows into the closed container from the air inlet channel and a gas runner to balance the inner and outer pressure difference, so that the flowing interface of liquid flowing beams is stabilized conveniently, fluctuation and splashing of the liquid flowing beams are reduced, and the pouring speed is increased.

The invention provides an anti-freezing fan coil assembly. The anti-freezing fan coil assembly comprises at least one coil pipeline, a water inlet device and a water outlet device, wherein the water inlet device communicates with inlets of all the coil pipelines, and the water outlet device communicates with outlets of all the coil pipelines. The water inlet device is provided with a venting valve, and the water outlet device is provided with an air inlet valve. The venting valve and the air inlet valve are selectively and synchronously opened or closed along with the temperature of an external surface air cooler. According to the fan coil assembly, water in a coil can be automatically drained completely when the air temperature is low, and thus the fan coil can be protected against frost cracks under the condition that the fan coil is not in use in winter.

The invention discloses a novel fin evaporator leak detection line, which comprises a water tank, an air blowing table, a conveyor belt, a quick connector conveyor chain, and a bench, and is characterized in that the water tank is made of transparent glass; the bottom part of the water tank is provided with a downspout valve; the bottom part of the water tank tilts towards the downspout valve at a certain slope; two sides of the water tank are provided with dual-pipe explosion-proof lighting lamps; the entire water tank is fixed on the bench; the air blowing table is provided with a strong air blowing device and a water receiving device; water collected by the water receiving device can flow back to the water tank; the conveyor belt is connected with the water tank and the air blowing table; the transition section from the water tank to the air blowing table rises at a slope of 20+ / -0.2 DEG; the quick connector conveyor chain and the conveyor belt share one variable-frequency motor to be driven; the bench is made of an aluminum alloy material, and the maximal bearing weight of the bench is no smaller than 3t. The novel fin evaporator leak detection line is economic and practical, the leak detection efficiency is high, water-saving effects are high, and the novel fin evaporator leak detection line can be matched and joined with a drying line and a blunting line for use.

The present invention discloses a method for treating a collapsible loess foundation using an acid-adding presoaking method. The method comprises a first step of sampling, which refers to using a soil sampler to cut to obtain a soil sample from a collapsible loess foundation to be treated; a second step of soil sample testing; a third step of determination of the concentration of a soaking liquid; a fourth step of determination of the usage amount of the soaking liquid; a fifth step of preparation of the soaking liquid according to the determined concentration and usage amount, the soaking liquid being an acid-added aqueous solution and being an acid solution formed by uniformly mixing water with acid; a sixth step of acid-adding presoaking treatment of the collapsible loess foundation, which refers to continuously adding the soaking liquid into the collapsible loess foundation to be treated, the adding time being 3-15 days; and a seventh step of drainage consolidation, which refers to carrying out drainage consolidation treatment on the collapsible loess foundation to be treated by using a drainage consolidation method. The method provided by the invention is simple in step, reasonable in design, convenient to construct, and excellent in using effect; and by using the method, a treatment process of the collapsible loess foundation can be easily, conveniently and rapidly completed, loess collapsibility can be effectively eliminated, the strength of the loess can be effectively enhanced, and the bearing capacity of the foundation can be raised.