225 results about "Water district" patented technology

The invention relates to the technical field of river bank protection, in particular to a river bank slope protection for cofferdam construction and a construction method thereof. S2, construction of a near-water area structure; s3, construction of a far water area structure; s4, ecological enhancement; triple optimization of river bank protection is achieved through dynamic water level monitoring and modular design, a double-layer reinforced concrete and elastic sealant structure is adopted in a near-water area, the compressive strength is improved by 20%, the crack width is smaller than or equal to 0.2 mm, and material waste is reduced by 15% in cooperation with dynamic width adjustment (+ / -2 m); the mold bag concrete slope protection is combined with an atomization spraying system, the anti-scouring capacity reaches 5 m / (m.s), the vegetation coverage rate is larger than or equal to 80% within 3 months, and the water and soil loss rate is reduced by 70%; the modular honeycomb structure inflation assembly efficiency is improved by 40%, the transportation cost is reduced by 50%, the distributed sensors achieve structure displacement / pressure three-level early warning, the operation and maintenance cost is reduced by 70%, the overall service life is prolonged by more than 5 years, and an ecological-engineering collaborative protection system is formed.

The utility model relates to the technical field of extruders, and provides an extruder for cable processing, which comprises a shell, one end of the shell is provided with an extrusion device, the other end of the shell is provided with a winding device, and the top end of the extrusion device is fixedly connected with a feeding end; the shell comprises a water tank, a vertical plate and a bottom plate, the water tank is fixedly connected to one end of the vertical plate, the bottom plate is fixedly connected to the lower portion of the water tank, and the water tank is provided with a movable water area. The extrusion device comprises two material pushing shafts, a wire core, a first rotating shaft, a second rotating shaft, a filter screen cover, a wriggling handle, a hose and a jacking block, the two material pushing shafts are rotationally connected to the inner wall of the feeding end, and the wire core is rotationally connected to the axis of the inner wall of the feeding end. According to the utility model, the labor intensity of workers is reduced, and the task load of the workers is reduced.

The invention relates to the technical field of drainage management, in particular to an intelligent data analysis system for drainage management, which is characterized in that full-chain data from a source, a permeable area, underground water and a tail end are comprehensively acquired through a drainage acquisition module, and a comprehensive water level capable of reflecting the overall load state of the system is calculated through a weighted fusion formula; according to the evaluation method based on the curve form similarity, a comprehensive water level curve is drawn, and the comprehensive water level curve is compared with an expected drainage curve, so that the system can objectively give a conclusion that drainage management is qualified or unqualified in a rainfall event. Compared with single-point over-limit alarm, the dynamic response capability of the system in the time dimension can be reflected more comprehensively, management evaluation is standardized and scientific, and intelligent, accurate and robust self-calibration of core capability parameters of the drainage system is achieved by establishing a dynamic proportional adjustment mechanism based on a preset integral difference value.

The invention discloses a chemical high-concentration organic wastewater treatment device, and relates to the technical field of wastewater treatment, the chemical high-concentration organic wastewater treatment device comprises an EIC reactor main body, the EIC reactor main body is internally provided with a water distribution zone, a reaction zone, a separation zone and a biogas collection zone from bottom to top, and the water distribution zone is internally provided with a lower spiral water distribution group and an upper spiral water distribution group from bottom to top; the supporting column, the lower spiral water distribution group and the upper spiral water distribution group are jointly provided with a water distribution mechanism, and an opening and closing mechanism for controlling the lower spiral water distribution group to deflect is arranged on the inner bottom wall of the EIC reactor main body. The lower spiral water distribution group and the upper spiral water distribution group are matched in a guiding manner, so that inlet water can be uniformly and stably distributed, and the situation that the contact time of wastewater and sludge is relatively short and the wastewater and the sludge cannot fully participate in a reaction due to overlarge impact load, overhigh ascending velocity and rushing out of the sludge is avoided; through blocking of the fan-shaped blades of the lower spiral water distribution group and the upper spiral water distribution group and the V-shaped dirt baffle, the situation that a water outlet head is blocked by sinking sludge can be reduced.

The application belongs to the technical field of drain valves, and discloses a time-delay valve core, a time-delay drain valve applying the same and a sanitary ware, wherein the time-delay valve core comprises: a body provided with a water inlet area, a water control flow channel and a water passing area, the water control flow channel being communicated between the water inlet area and the water passing area; a first adjusting member rotatably installed on the body, the water control flow channel being configured to change the water discharge flow to the water passing area with the rotation of the first adjusting member; and according to the water discharge requirement of a product, the water discharge flow of the water control flow channel is adjusted by using the first adjusting member, so that the adjustment of multiple water efficiency is realized, and the time-delay valve core is suitable for different water products. The whole structure is simple, the adjustment is convenient, and the applicability is wide.

The present invention relates to the technical field of water interception and drainage structures, and discloses a single-channel water interception and drainage structure that can be quickly constructed, including a water inlet dam, an intermediate dam, a water outlet dam and at least one drainage pipe arranged in a water channel. Along the flow direction of water in the water channel, the water inlet dam, the intermediate dam and the water outlet dam are arranged in sequence and at intervals, and the water channel has a water inlet area, a water isolation area and a water stop area; the drainage pipe has a water inlet end and a drainage end, and the drainage pipe passes through the water inlet dam, the intermediate dam and the water outlet dam in sequence, and the water inlet end extends into the water inlet area, the drainage pipe extends to the outside of the water channel, and the drainage end extends to the drainage area, the water in the water inlet area enters the drainage pipe from the water inlet end, is led to the drainage area by the drainage pipe, and is discharged into the drainage area by the drainage end; the water inlet end has a water inlet, and the water inlet is provided with a filter layer formed by weaving metal wire strips.

The utility model relates to a sedimentation tank capable of avoiding blockage of an inclined tube, which comprises a shell, a vertical plate is arranged on one side of the shell and divides the shell into a water inlet area and a sedimentation area, a through groove is arranged below the vertical plate and communicated with the water inlet area and the sedimentation area, a dust accumulation groove is arranged at the bottom of the sedimentation area, the inclined tube is arranged in the sedimentation area, and the inclined tube is arranged in the through groove. An aeration pipe is arranged below the inclined pipe, the aeration pipe comprises a main pipe and side pipes arranged on the two sides of the main pipe in pairs, and the pair of side pipes are connected with each other; the structure of the aeration pipe is improved, the aeration area is increased, and the stability of the aeration pipe is ensured.

The utility model relates to a dish-washing machine technical field especially relates to a double residue separation's dish-washing machine, including located dish-washing machine cleaning pool side's residue discharge box and set up in dish-washing machine cleaning pool bottom's sewage pipe, residue discharge box with sewage pipe communicate, residue discharge box includes residue pool and water storage pool, residue pool and water storage pool in top communicate, sewage pipe with residue pool in bottom communicate, residue pool side is equipped with residue discharge port and first residue separation spare, water storage pool includes water receiving area and is located in the circulating water area of water receiving area bottom, is equipped with second residue separation spare between water receiving area and circulating water area, and the circulating water collection pipe that communicates has in circulating water area, the circulating water collection pipe is used for collecting the water in circulating water area to dish-washing machine cleaning pool inside. The residue discharge structure of dish-washing machine of the application can effectively discharge residue, prevent pipe blockage, and can also reduce water cost simultaneously.

The invention relates to a water distribution system, a cooling tower and an integrated cooling station, the water distribution system comprises a water distribution device, the water distribution device is provided with a disc body (1) and a flow guide part (2), the flow guide part (2) is arranged on the bottom surface of the disc body (1), extends in a first direction and is configured to divide the disc body (1) into a water distribution area (11) and an adjusting area (12) in a second direction, and a plurality of spraying holes (110) are formed in the bottom surface of the water distribution area (11); gaps are formed between the flow guide pieces (2) and the two ends of the disc body (1); the water supply device (3) is arranged at one end of the tray body (1) in the first direction and is configured to provide water flow; the energy consumption device (4) is arranged at one end, close to the water supply device (3), of the disc body (1), is communicated with the water supply device (3) and is provided with a first energy consumption part arranged in a water flow path and a second energy consumption part forming an angle with the first energy consumption part, and the first energy consumption part is provided with a first water outlet hole for discharging water towards the water distribution area; and the second energy consumption part is provided with a second water outlet hole for discharging water towards the adjusting area.

The utility model relates to an enhanced denitrification device for a microbial electrolysis constructed wetland. The enhanced denitrification device comprises a constructed wetland system, an electrolysis system and an intelligent control system, the constructed wetland system comprises a water distribution area and a constructed wetland reaction area; a water inlet device is arranged in the water distribution area, and the water distribution area is communicated with the constructed wetland reaction area through the water inlet device; wherein an electrolysis system and an intelligent control system are also arranged in the constructed wetland reaction zone. The device has the advantages that the removal of pollutants, mainly nitrogen, of the constructed wetland is enhanced by mainly utilizing external voltage in the electrolysis system 2, and the water inlet flow, the external voltage and the distance between the electrodes can be adjusted according to the intelligent control system 3, so that the surface hydraulic load of the constructed wetland and the current intensity in the wetland are controlled; and the two systems cooperate to enhance the removal of pollutants, especially nitrogen, of the constructed wetland, so that the pollutants in water are efficiently removed, the water quality of discharged wastewater is improved, and the environmental water quality is improved.

The invention relates to the technical field of pollution detection devices, in particular to a waterfront water and soil loss non-point source pollution detection device and method.The waterfront water and soil loss non-point source pollution detection device comprises a water and soil loss monitor, the water and soil loss monitor is installed on a supporting plate, the supporting plate is in lap joint with the top of a ditch supporting plate, and wire bunching arms are rotationally connected to the two sides of the supporting plate; the surface of the bunching arm is provided with a bunching groove, the connecting end of the water and soil loss monitor is connected with a wire, one end of the wire is provided with a sensor probe, and the wire and the sensor probe both extend into the bunching groove; the device has the advantages that the bunching arms rotationally connected to the two sides of the supporting plate are ingenious in design, the bunching arms can swing downwards to the bottom of the ditch supporting plate, and a sensor probe installed at one end of a wire can extend into a ditch to detect a flowing water source. Meanwhile, the bunching groove formed in the surface of the bunching arm provides an ordered placement space for the wire and the sensor probe, and the wire bunching arm is fixed through the cooperation of the bunching groove and the hand-twisted screw, so that the wire and the sensor probe are effectively prevented from swinging under the impact of water flow.

The utility model provides a chromatographic column head with a pore fluid distribution cover, which comprises a column head bottom plate for storing and discharging liquid and a column head top plate covering the top of the column head bottom plate and used for injecting liquid and exhausting, and a water injection pipe for injecting water into the column head bottom plate is arranged in the center of the top of the column head top plate. A groove used for storing liquid is formed in the column head bottom plate, a plurality of liquid drainage holes communicated with the outside are formed in the bottom of the groove in an arrayed mode, a liquid distribution disc structure with the same projection area as the groove is arranged in the groove, and the liquid distribution disc structure is in an arc shape. The circle center of the liquid distribution disc structure and the axis of the water injection pipe are collinear, the liquid distribution disc structure comprises a water avoiding area arranged under the water injection pipe and a liquid distribution area arranged around the water avoiding area, and the area of the water avoiding area is larger than or equal to the projection area of an inner hole of the water injection pipe. A plurality of liquid separation holes are formed in the liquid separation area around the water avoiding area.

The utility model discloses a novel nitrogen reduction electro-adsorption treatment device which comprises a plurality of adsorption modules, each adsorption module comprises a shell, PP clamping grooves are formed in the two sides of the shell, polar plates are placed in the shell through the PP clamping grooves, two first partition plates are installed in the shell, and the two first partition plates are arranged in the shell. The interior of the shell is divided into an adsorption area located in the middle and main concentrated water areas distributed on the two sides through a first partition plate. The device disclosed by the utility model has the advantages that the device is suitable for treating the ionic high-TN-concentration enterprise production wastewater under a mixed wastewater condition, and the cost is low and the efficiency is high.

The utility model discloses a metering tank, belongs to the technical field of sewage treatment equipment, and particularly relates to a metering and discharging device for sewage treatment, which comprises a tank body, a metering tank and a discharging tank, and the tank body comprises a water inlet area, a metering area, a buffer area and a water outlet area; the buffer area is communicated with the metering area; an energy dissipation retaining wall is arranged in the water inlet area; according to the metering tank, the energy dissipation retaining wall is arranged in the water inlet area of the metering tank and can reduce the pressure when sewage enters the metering tank, so that metering failure caused by overlarge water inlet flow is prevented, meanwhile, the buffer area is arranged on one side, the overall flow of the metering tank is further limited, and the metering efficiency is improved. Therefore, the flow of the fluid can be accurately measured, and powerful support is provided for reasonable distribution of water resources, environmental protection, industrial process control and the like; by monitoring the flow data in real time, the use and distribution strategy of water resources can be adjusted in time, and the working efficiency and the resource utilization rate are improved.

The present application relates to the field of seawater desalination treatment, and in particular to a clean water tank and a seawater desalination treatment system, comprising: a tank body; an upper baffle, vertically fixed to the upper side of the tank body; a movable lower baffle, parallel to the upper baffle and vertically arranged on the lower side of the tank body, dividing the tank body into a water storage area and a blending area, wherein the lower baffle moves away from the upper baffle to form a gap between the lower baffle and the upper baffle, and the lower baffle moves toward the upper baffle to close the gap between the lower baffle and the upper baffle; a driving component, arranged in the tank body, for driving the lower baffle to move. The present application has the effect of achieving the connection and isolation between the water storage area and the acid-base blending area in the clean water tank, ensuring that when the acid-base blending area of ​​the clean water tank is clean, the water storage area of ​​the clean water tank can still stably inflow water.

This water-saving device features a flow rate adjustment function that allows for flow rate settings across a wide range due to its simple structure. [Solution] A water-saving device according to one aspect of the present invention is a water-saving device connected to a water supply device and adjusting the discharge flow rate, comprising a water supply unit, a water-saving adjustment unit and a discharge unit, wherein the water-saving adjustment unit comprises a water-passing member having a plurality of water-passing holes and a water-controlling member disposed opposite to the water-passing member, wherein the water-passing member alternately comprises n water-passing regions and n water-stopping regions, wherein the water-passing regions include a first water-passing region and a second water-passing region having a second water-passing hole whose radial opening width changes continuously along the circumferential direction, wherein the water-passing member and the water-controlling member are rotatably movable relative to each other and can be set as at least m types of flow rate setting patterns, and the flow rate discharged from the discharge unit is adjusted according to the setting of the flow rate setting pattern.

The utility model discloses a bio-trickling filter tank filled with ceramsite filter materials, which comprises a tank body, and the tank body internally comprises a water distribution area, a filler area and a water production area which are separated by a jacking layer and a bearing layer and are communicated with one another from top to bottom; a water inlet pipe and a water outlet pipe of the tank body are respectively communicated with the top and the bottom of the tank body; a self-rotating water distributor connected with the water inlet pipe is mounted in the water distribution area and is used for uniformly distributing sewage entering through the water inlet pipe onto the filler area; the filler area is filled with a ceramsite filter material for microbial biofilm formation and is used for purifying sewage uniformly distributed in the filler area; the water producing area is used for collecting clear water purified by the filler area, and the collected clear water is discharged through a water outlet pipe. The biological trickling filtration tank adopts an integrated structure, the civil engineering cost can be reduced, the ceramsite filter material is light in weight and low in price, the sewage treatment effect is good, rural domestic sewage can be conveniently and movably treated, and the possibility that equipment is idle is reduced.

The utility model relates to a desktop water purifying and drinking machine, and is applied to the field of water purifying and drinking machines. The interior of the water purifying and drinking machine is divided into a filter element area, a water tank area, a refrigeration area, a water piece area and a water receiving area by a main body rack, and the filter element area is located in the middle area of the main body rack; the water tank area is arranged at the upper part of the rear side of the filter element module; the refrigeration area and the water piece area are arranged at the lower part of the rear side of the filter element module; a heating body is further arranged on one side of the filter element module in the width direction; the water receiving area is arranged in front of the filter element module and comprises a first water receiving area and a tea boiling area which are arranged side by side in the width direction of the filter element module, a water outlet nozzle is arranged in the water receiving area, and water outlets of the refrigeration module and the heating body are communicated to the water outlet nozzle. The desktop type multifunctional water purifying and drinking machine has the functions of making normal-temperature water, hot water and cold water and boiling tea at the same time, all the components are arranged in a centralized and compact mode, miniaturization and integration of the whole machine can be achieved easily, the positions of all the operation areas accord with use habits of users, and the operation convenience of the users can be improved easily.

This invention discloses a top-sealed water flow rate testing device for a water-cooled magnet coil, comprising a container assembly and a water-blocking assembly. The water-blocking assembly, used to block the coil under test, is disposed inside the container assembly, dividing the interior of the container assembly into a high-pressure water zone and a low-pressure water zone. The container assembly is provided with an inlet and an outlet, the inlet communicating with the high-pressure water zone and the outlet communicating with the low-pressure water zone. The water-blocking assembly includes a sealing cap and a sealing ring. The sealing cap is disposed on top of the central through-hole of the coil under test, and the outer side of the sealing ring is sealed to the inner wall of the container assembly, while the inner side is sealed to the coil under test. The advantage of this invention is that, through the setting of the water-blocking assembly, the inlet is connected to an external cooling water supply system. The flow rate entering the high-pressure water zone from the inlet can be measured by measuring the water flow rate entering the inlet using an electromagnetic flow meter, thereby realizing the testing of the water flow rate of a single coil under test.

The application provides a water invasion amount identification method, system, device and medium in the production process of a water and gas reservoir well, comprising the following steps: establishing a corresponding equivalent water invasion model based on the relative position relationship between the water area and the gas area of the reservoir well; establishing a water invasion material balance model according to the stage division of the equivalent water invasion model and the pressure measurement time points in previous years; iteratively calculating the water invasion material balance model based on the principle that the stage water area pressure linearly decreases according to the stage water invasion amount; and evaluating the water body drainage line and guiding the drainage gas production of the reservoir well based on the iteratively calculated water invasion material balance model. The application selects the equivalent water invasion model corresponding to different well production geological models, establishes an iterative algorithm meeting the gas and water flow material balance equation, obtains well historical pressure parameters and reservoir parameters, calculates the current water invasion amount, and is further used for evaluating the water body and guiding the drainage gas production of the gas field well. The application can simplify parameters, avoid the situation that the crack water invasion model in the prior art cannot accurately depict and has difficulty in multi-parameter representation.

The present application belongs to sewage treatment technical field, especially to a kind of energy-saving and environment-friendly sewage treatment system, including sewage pool, the partition plate is arranged between water storage area and filter area, the coarse grid machine of oblique arrangement is provided in the filter area, the water-collecting pool of trapezoidal shape design is provided below the filter area, rotating assembly is provided in the water-collecting pool corresponding with the water outlet end below the coarse grid machine, the transmission assembly connected with rotating assembly is provided in the partition bin, petal valve is provided on the partition plate corresponding with the coarse grid machine, box is provided in the partition bin close to the partition plate, drive mechanism for driving power to control petal valve free opening and closing for receiving transmission assembly is provided in the box.The present application is reasonable in design, simple in structure and realizes the recovery of kinetic energy in the process of sewage treatment, and feedback to sewage treatment system, to achieve the purpose of cost reduction and efficiency improvement, in line with the production concept of energy saving and environmental protection, meet the use demand.

The present disclosure relates to a water distribution system, a cooling tower and an integrated cooling station, comprising a water distribution device having a disc body (1) and a flow guide (2) arranged on the bottom surface of the disc body (1) and extending along a first direction, configured to divide the disc body (1) into a water distribution area (11) and an adjustment area (12) along a second direction, the bottom surface of the water distribution area (11) is provided with a plurality of spray holes (110), the flow guide (2) is spaced apart from both ends of the disc body (1); a water supply device (3) arranged at one end of the disc body (1) along the first direction, configured to provide a water flow; and an energy consumption device (4) arranged at one end of the disc body (1) close to the water supply device (3) and communicated with the water supply device (3), having a first energy consumption part arranged on the water flow path and a second energy consumption part arranged at an angle with the first energy consumption part, the first energy consumption part has a first water outlet hole facing the water outlet of the water distribution area, and the second energy consumption part has a second water outlet hole facing the water outlet of the adjustment area.

This invention provides a water level measuring device that can measure water levels more reliably, and a method for producing water level data. [Solution] In the water level measuring device, the determination unit 21 of the processing unit 2 determines whether or not it is possible to distinguish the boundary line between the water surface-related structure and the water surface in the measurement image acquired by the camera 1. If the determination unit 21 determines that it is not possible to distinguish between the water surface-related structure and the water surface, the setting unit 22 sets a point on the boundary line between the water region and a region in the non-water region that is at a different location from the fixed structure as the boundary point. The setting unit 22 sets the point where a virtual horizontal line passing through the boundary point intersects the water surface-related structure as the water level determination point and sets at least one position reference point. Based on the positions of the water level determination point and the position reference point in the measurement image, the extraction unit 24 extracts a reference image corresponding to the measurement image from a plurality of reference images as an extracted image.

The invention relates to the technical field of ice-making machines, and discloses a vertical ice falling narrow body type ice-making machine, an ice-making water tank is arranged below an evaporator mold, the ice-making water tank is connected with a rotating structure, and the axis of the rotating structure is perpendicular to the front and rear surfaces of the ice-making machine; the water tank is arranged below the ice-making water tank, and the ice storage box is mounted between the water tank and the ice-making water tank; in the top view direction, the rear end of the water tank exceeds the ice storage box, the exceeding part forms a water receiving area, and a water outlet is formed in the corresponding end, above the water receiving area, of the ice-making water tank; when the ice-making water tank is converted from an ice-making state to a water draining state by the rotating structure, liquid in the ice-making water tank directly falls into a water receiving area through the water draining opening; the problems that in the prior art, water passes through the ice storage basket to cause secondary icing in the ice storage basket or adhesion of ice blocks, and the cost is increased due to the fact that the flow guide groove is additionally arranged are solved.

This invention relates to the technical field of receiving water bodies and discloses a biochar device suitable for improving the water quality of receiving water bodies in water conveyance projects. The device includes a water collection tank, a water cavity containing multiple grid frames for filtering and purifying the receiving water, and multiple grid plates dividing the water cavity into multiple filtration zones. A floating carrier is located at the top opening of each filtration zone, with a downward-protruding cup forming a convex cup. The cup cavity is filled with a matrix mixed with biochar, and plants are planted in the matrix. The plant roots extend through multiple root holes to the outside of the cup cavity. The grid frames have longitudinal cavities, into which first and second rows of biochar-made filter plates are inserted. The first and second rows of filter plates are spaced apart to form a central cavity. The first row of filter plates has multiple filtration channels inside, through which the receiving water enters the filtration channels via multiple inlets, and the receiving water in the multiple filtration channels collects and discharges through outlets into the central cavity. The second row of filter plates has seepage-separating gaps.

The utility model relates to a shield waste water treatment device, which belongs to the technical field of shield waste water treatment and comprises a waste water collection tank, a lifting pump, an inclined plate sedimentation tank, a spore transfer all-in-one machine, a mud collection tank and a latticed water storage tank, a partition wall for dividing the partitioned water storage tank into a water return area and a tap water area is arranged in the middle of the partitioned water storage tank; an inlet and an outlet of the lifting pump are respectively communicated with a water outlet of the wastewater collection tank and a water inlet of the inclined plate sedimentation tank through pipelines; a clear water outlet of the inclined plate sedimentation tank is communicated with a water inlet of the spore transfer all-in-one machine through a pipeline; a sludge discharge port of the inclined plate sedimentation tank is communicated to a sludge collecting tank through a pipeline; a clear water outlet of the spore transfer all-in-one machine is communicated to a water return area of the latticed water storage tank; the shield waste water treatment device can quickly treat shield waste water, shortens the treatment time of the shield waste water, and achieves the recycling standard.

The utility model discloses a portable water environment monitor which comprises a monitor main body, a lead, a probe and an auxiliary supporting device, according to the utility model, the auxiliary supporting device is arranged at the side part of the monitor main body, the telescopic rod is lifted by holding the grab handle with one hand, the probe can be lifted to a position above a deep water area far away from a river bank by virtue of the telescopic rod, and then the other hand controls the lead to be released, so that the probe descends until the probe is immersed into a water body; by means of the auxiliary supporting device, the probe can be thrown into a deep water area for monitoring work, the probe is not prone to being affected by aquatic plants on the shore, the monitoring data precision is guaranteed, the hook is arranged on the side portion of the rod sleeve, and a wire with the redundant length can be wound into a ring to be hung on the inner side of the hook and used for temporary storage of the wire.

The present application relates to a kind of for deep recess open-pit new level development water pressure environment reconstruction efficient ditching method, the lithology and fracture distribution characteristics of rock mass in the in-and-out ditch ditching area are proved, and according to this, each construction section of in-and-out ditch channel is subdivided into water gushing area, conventional area and first blast area.In first blast area and water gushing area and outside, uniformly arrange precipitation well, outside, arrange drainage well, after the surface fissure water is drained in advance, from first blast section, it is formed to gather water loose blast pile by rapid penetration and blasting to both sides.In the pre-splitting blast hole drilled between drainage well and the first blast area and water gushing area of channel, bottom is strengthened charge and is simultaneously detonated with adjacent channel construction section, and through drainage passage is formed in the bottom of blast pile between drainage well and in-and-out ditch.In the completion of penetration and blasting, water pump in drainage well is full load continuous pumping, so that the water level of blast pile is lower than the operating surface of electric shovel, and electric shovel is combined with car flat car full section high continuous ditching to new level operating surface.The present application has the advantages of improving penetration and blasting effect, improving ditching efficiency, flexible selection of development opportunity etc..

The application discloses a large two-way water flow test platform water flow regulating device, which is composed of a device body, and comprises a first test area, a second test area, a steady flow mechanism, a first outflow mechanism and a pool; the pool is provided with the first test area and the second test area; one side of the pool is provided with the steady flow mechanism, and the other side of the pool is provided with the outflow mechanism; wherein: the steady flow mechanism comprises a second outflow mechanism, a rectifier box, a water stabilizing area, a water stabilizing grid and a water discharge mechanism; the rectifier box is connected with the water stabilizing area arranged on the pool through a support frame; the rectifier box is connected with the water stabilizing grid through a water stabilizing unit; the water stabilizing grid is connected with the first test area and the second test area through water supply pipelines respectively; the water discharge pipeline is connected with the water stabilizing area, and the application can regulate two-way water flow in a smaller range and ensure that the boundary conditions of a simulation area are consistent with the actual conditions.

The present application belongs to the technical field of water treatment, and specifically relates to a siphon valveless filter tank for water treatment and a backwashing method. The filter tank comprises a filter tank main body, a water inlet system, a filtering system, a backwashing system, a clean water collecting system and a control valve assembly. The inside of the filter tank is provided with, from top to bottom, a clean water area, an ultra-high space, a sand washing tank, a filter material layer, a supporting layer, an air-water distributor and a water distribution area, and a vertical shaft water distribution channel is arranged in parallel on the side. The water inlet system eliminates the air entrainment phenomenon through the vertical shaft water distribution channel. The backwashing of the filter tank comprises two modes of hydraulic automatic control and program control, and both modes integrate air-water combined backwashing operation. The present application combines the advantages of homogeneous filter material deep bed filtration and hydraulic automatic control, realizes air-water combined backwashing, and efficiently removes impurities in the filter layer. The filter tank has compact structure, is easy to operate and maintain, and can expand the treatment capacity of a single tank as needed, and is suitable for water treatment scenes such as water supply treatment, sewage treatment and water purification, and is especially suitable for new construction and old plant reconstruction of medium and small water plants.